The invention relates to an adjustable cable trench cover plate comprising a cover plate body, a pulling plate, and fixed plates. The cover plate has a box type structure with one open end; and a sliding rail is arranged inside the cover plate body and the cover plate body is connected with the pulling plate by the sliding rail. The fixed plates are connected to the cover plate body in a hinging mode and are connected with the pulling plate. When the pulling plate slides out of the cover plate body, the fixed plates are driven by the pulling plate to make rotation and the cover plate body and a cable trench are fixed. According to the invention, the provided adjustable cable trench cover plate has advantages of simple structure and convenient application. With the cover plate body and the pulling plate in sliding connection, coverage of cable trenches with different sizes is realized. And the cover plate body is fixed by the fixed plates, thereby guaranteeing firm coverage of the cable trench and protecting the cable trench effectively.

Adjustable cable trench cover plate and temporary plugging method of cable trench

The invention discloses a pre-embedded type cable well with an auxiliary pay-off device. The pre-embedded type cable well comprises a well body formed by spicing of a prefabricated bottom plate and side plates, the upper end of the well body is provided with a well seat used for assembling a well cover, and the well seat is further provided with the detachable auxiliary pay-off device; and the auxiliary pay-off device comprises a bracket, the bracket is provided with a roller assembly perpendicular to the laying direction of a communication cable, and the roller assembly comprises a first roller, a second roller, a third roller and a fourth roller. During using, the communication cable passes through the auxiliary pay-off device first and then enters the cable well, thus friction between the communication cable and a well opening can be avoided to prevent the cable from being scraped, a good protection and guidance effect is achieved, both time and labor are saved during operation, theworking difficultly is reduced, the construction efficiency is improved while the construction quality is ensured, the structure is firm and stable, and mounting is convenient and fast.

Pre-embedded type cable well with auxiliary pay-off device

The invention discloses a structure-improved cabling trough, comprising a trough body, wherein the trough body is spliced by a prefabricated bottom plate and side plates. Each side plate is provided with cable ports, each cable port is internally provided with a cable protection sleeve, a bracket is arranged at an inner side of the trough body near the cable port, and a roller assembly perpendicular to the axial direction of the communication cable is arranged on the bracket. The roller assembly includes a first roller horizontally arranged, and a second roller and a third roller inclinedly arranged on both sides of the first roller. When the communication cable passes through the cable port, the cable protection sleeve can prevent the cable from contacting the inner wall of the cable portand prevent the cable surface from being scratched, which plays a very good role of protection and guidance. At the same time, the roller assembly can assist in laying communication cables. When thecommunication cable is laid in the trough body at the corner, the frictional resistance can be reduced, time and labor are saved, the work difficulty is lowered, and the construction quality is ensured while the construction efficiency is increased.

Structure-improved cabling trough

The invention discloses a cable assisted pay-out device, comprising a bracket provided with a roller assembly perpendicular to the laying direction of a communication cable, and the roller assembly includes a first roller and a second roller, a third roller and a fourth roller. The first roller is horizontally disposed on the bracket, and the second roller and the third roller are respectively inclinedly arranged on both sides of the first roller, the fourth roller is horizontally arranged on the front side of the first roller, and the height of the fourth roller is lower than that of the first roller. When in use, the pay-out device is placed close to the cable wellhead, when the communication cable enters the cable well, the friction between the cable and the wellhead is avoided, the cable is prevented from being scratched, a very good protection and guiding role is achieved, the operation saves time and labor, the work difficulty is reduced, the construction quality is lowered and the construction efficiency is improved at the same time. The cable assisted pay-out device is suitable for the pre-embedded cable well, the structure is firm and stable, and installation is quick andeasy.

Cable assisted pay-out device

The invention relates to a sag measuring tackle for flexible bus lines The sag measuring tackle comprises a mounting fixing mechanism, a sliding mechanism, a locking mechanism and a measuring pulling rope The tackle can be mounted on a flexible bus line by the aid of the mounting fixing mechanism; the sliding mechanism and the locking mechanism are arranged on the mounting fixing mechanism; the tackle can slide along the flexible bus line by the aid of the sliding mechanism; the locking mechanism is used for switching on or off the mounting fixing mechanism, a closed region is jointly enclosed by the mounting fixing mechanism and the locking mechanism, and the flexible bus line can penetrate the closed region; the tackle can be pulled to move and measure the sag of the flexible bus line by the aid of the measuring pulling rope The sag measuring tackle has the advantages that the pulley can automatically slide to reach a sag position of the bus line under the effect of the gravity of the tackle, measurement workers on the ground can obtain sag values by means of reading readings on the measuring pulling rope without high-altitude operation, and measurement operation can be efficiently and accurately carried out; the measuring pulling rope can be controlled and released by the aid of damping devices when the tackle slides off from the bus line, so that the tackle can be slowly arranged on the ground and can be prevented from falling at the high speed

Sag measuring tackle for flexible bus lines

The utility model belongs to the field of power grid cable laying construction, and particularly relates to a universal cable laying pulley The universal cable laying pulley comprises more than three pulley wheel units and a fixing seat for fixedly connecting the pulley wheel units to a bracket Each pulley wheel unit is composed of a roller base and a roller The roller bases of the pulley wheel units are connected end to end to form a closed ring structure The surfaces of the rollers face inward to form the inner ring surface of the closed loop structure, and the inner ring surface forms a channel for a cable to run through The axes of rotation of the rollers are arranged to be perpendicular to the running direction of the cable The roller base of at least one pulley wheel unit and the roller base of the adjacent pulley wheel unit form an opening-closing Haver or articulated fit relationship at the joint, and the opening and closing ends of the fit relationship are provided with an inlet and an outlet for cable picking and placing The drop damage phenomenon in the existing cable laying process can be avoided while the cable towing resistance is effectively reduced The laying reliability and the operation efficiency are effectively improved

Universal cable laying pulley

The invention belongs to the construction field of electric power transformer substation construction projects and particularly relates to an adjustable cable trench construction cover plate for temporarily covering trench faces of cable trenches of different widths The cover plate comprises an outer cover plate body with the strip-plate-shaped appearance and an inner cover plate body with the strip-plate-shaped appearance The inner cover plate body is arranged in the outer cover plate body in an embedded or sleeved mode, and the inner cover plate body and the outer cover plate body are in sliding fit relation and move in a set direction Threaded holes are formed in the inner cover plate body and the outer cover plate body respectively The multiple threaded holes are sequentially arranged in the moving direction of the inner cover plate body and the outer cover plate body The inner cover plate body and the outer cover plate body are fixedly connected and matched through bolts The cover plate is simple in structure, high in practicality and multipurpose, the requirement for covering the cable trenches in the set width range is met, and the application range is wider

Adjustable cable trench construction cover plate

The utility model discloses an operation integration platform at bottom of cable pit ditch relates to the construction building field. This platform is including setting up the movable support that moves that can follow the cable pit removal above the cable pit, move the operation mesa of personnel's work when being provided with the cable pit of being convenient for on the movable support and receiving the light operation. This platform is still including being convenient for to the feeding device of pay -off at the bottom of the cable pit ditch, feeding device installs on moving movable support. Two kinds of operation modes can be realized to this platform: unloading operation mode and receipts light operation mode, promptly the utility model discloses can be in a same platform last time nature solution unloading and a receipts light difficult problem. The staff can carry out the operation under receiving light operation mode on the operation mesa, can improve efficiency and the technological level of receiving the light operation at the bottom of the ditch effectively.

Operation integration platform at bottom of cable pit ditch

The utility model relates to a soft generating line arc measurement coaster that hangs down. The utility model discloses an install the retention mechanism, slide mechanism, blocked mechanical system and measurement haulage rope, install the retention mechanism is used for installing the coaster at soft generating line, slide mechanism, blocked mechanical system all set up on install the retention mechanism, slide mechanism is used for the coaster to slide along soft generating line, blocked mechanical system is used for opening and closing install the retention mechanism, and install the retention mechanism and blocked mechanical system enclose into the closed region that the soft generating line of confession passed jointly, the measurement haulage rope is used for pulling the coaster removal and hangs down with the arc of measuring soft generating line. This coaster can be in the department of hanging down of the automatic generating line arc that slides under the effect of self gravity, and the survey crew can obtain the arc value of hanging down at subaerial reading through on reading the measurement haulage rope to need not survey crew high altitude construction, measuring operation is high -efficient and accurate. When the generating line landing is followed to the coaster, can also put the measurement haulage rope with the control pine through damping device for ground is slowly placed to the coaster, avoids the high -speed whereabouts of coaster.

Zhu Tianxiang

Papers

Universal cable laying pulley

Adjustable cable trench construction cover plate

Operation integration platform at bottom of cable pit ditch

Soft generating line arc measurement coaster that hangs down

Sag measuring tackle for flexible bus lines