A perforating compound for building materials is used for perforating lower building materials (94) and comprises a shell (91) used for abutting against an upper fixing object (9). Two top pressure screw rod components (8) are mounted on the upper side wall of the shell (91) and arranged symmetrically relative to the longitudinal axis of the shell (91). Each of the top pressure screw rod components (8) comprises a thread fixing sleeve (82) and a top pressure screw rod (81), wherein the thread fixing sleeve (82) is fixed to the upper side wall of the shell (91), and the top pressure screw rod (81) is in threaded fit with a thread hole (821) in the lower end wall of the thread fixing sleeve (82).

Perforating compound for building materials

The invention discloses a perforating device for building materials. The perforating device is used for perforating the building materials (94) below the perforating equipment and comprises a shell (91) used for abutting against a fixed object (9) at the upper part, two pressing screw assemblies (8) are installed on an upper side wall of the shell (91) and are symmetric around the longitudinal axis of the shell (91), and each pressing screw assembly (8) comprises a threaded fixed sleeve (82) fixed to the upper side wall of the shell (91) and a pressing screw (81) matched with a threaded hole (821) in a wall of the lower end of the threaded fixed sleeve (82) in a threaded mode.

Perforating device for building materials

The invention provides an efficient stone breaker which comprises a main machine. The main machine forwards extends to form an insertion pipe, a shaft rod which extends along the axis of the insertion pipe and extends out of the insertion pipe is arranged in the insertion pipe, and a discharge electrode capable of generating electric arc is arranged at the outer end of the shaft rod; 2-4 rows of side ejection mechanisms are evenly distributed on the side face of the insertion pipe in the circumferential direction, and each side ejection mechanism comprises a sliding way communicated with the interior of the insertion pipe and a sliding column arranged in the sliding way; and a pointed cone is formed at the outer end of each sliding column, when the sliding columns transversely slide to the outmost ends, the pointed cones at the outer ends of the sliding columns are jacked out of the insertion pipe, and when the sliding columns transversely slide to the innermost ends, the pointed cones at the outer ends of the sliding columns completely contract into the sliding way. By means of the efficient stone breaker, stone blocks or concrete blocks under various environments can be flexible, conveniently and quickly broken, the size and power are small, and carrying is very convenient.

Efficient stone breaker

The invention discloses a building material punching device. The building material punching device is used for punching a building material (94) arranged below and comprises a shell (91) used for abutting against a fixing object (9) arranged above. Two jacking and pressing threaded rod assemblies (8) are mounted on the upper side wall of the shell (91) and arranged to be symmetrical about the longitudinal axis of the shell (91). Each jacking and pressing threaded rod assembly (8) comprises a threaded fixing sleeve (82) and a jacking and pressing threaded rod (81), wherein each threaded fixing sleeve (82) is fixed to the upper side wall of the shell (91), and each jacking and pressing threaded rod (81) is in thread fit with a threaded hole (821) in the lower end wall of the corresponding threaded fixing sleeve (82).

Building material punching device

A perforator for a building material is used for perforating the building material (94) below the perforator and comprises a shell (91), wherein the shell (91) is propped against a fixed object (9) on the perforator; two pressing screw assemblies (8) are mounted on the upper side wall of the shell (91), and are symmetrically arranged along a longitudinal axis of the shell (91); and each pressing screw assembly (8) comprises a threaded fixed sleeve (82) fixed on the upper side wall of the shell (91) and a pressing screw (81) matched with a threaded hole (821) in the lower end wall of the threaded fixed sleeve (82) in a threaded manner.

Perforator for building material

The invention relates to a mute drilling method and a mute electric drill, and aims at solving the problem that the noise of the existing electric drill is large. Two permanent magnet motors are oppositely arranged on a horizontal machine seat in a left and right balance mode; the two permanent magnet motors commonly drive a middle shaft with a drill chuck to realize symmetrical phase angles, and collision is generated in the vibration direction of a motor; collision waves commonly act on the machine body so that waveforms are offset to disappear; the middle shaft is arranged in the middle of the horizontal machine seat by a bearing block; the two permanent magnet motors respectively drive driven synchronous pulleys arranged on the middle shaft by a driving synchronous pulley and a synchronous driving belt; left and right stators of the left and right permanent magnet motors are in left and right symmetric distribution; left and right rotors of the left and right permanent magnet motors are in left and right symmetric distribution; a sliding rod and a screw rod which are in left and right symmetric distribution are in axial sliding fit with two sides of the middle shaft on the horizontal machine seat by left and right sliding fit sleeves which are parallel with the middle shaft; an end plate with a middle hole is fixedly mounted on the front ends of the sliding rod and the screw rod commonly; an internal thread handle sleeve is matched with the lower part of the screw rod by threads; a support spring is in sliding fit and is sleeved with the screw rod between the internal thread handle sleeve and the horizontal machine seat or between the sliding fit sleeves. The invention has the advantages that the torque is large, the drilling speed is rapid, the adaptive capacity is strong, the use is convenient, and the mute effect is good.

Deng Tao

Papers

Mute drilling method and mute electric drill