CN111029983B

CN111029983B - Distribution threading device

Info

Publication number: CN111029983B
Application number: CN202010059227.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuyi Xianhe Electronic Co ltd
Current assignee: Zibo Huayue Environmental Protection Equipment Co ltd
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-09-15
Anticipated expiration: 2040-01-18
Also published as: CN111029983A

Abstract

A power distribution threading device comprises a gun body, and a forward device, a power device and a switch device which are arranged in the gun body, wherein the forward device comprises an action cavity arranged in the gun body, a first compression block is fixedly arranged on the top end wall of the action cavity, a first compression groove is arranged on the bottom end surface of the first compression block, a second compression block is arranged in the first compression groove in a vertically sliding fit manner, and compression springs are fixedly arranged on the top end surface of the second compression block and the top end wall of the first compression groove; this device adopts the appearance design of rifle formula, and the oral area is equipped with the helicla flute, can produce certain rotation at the in-process of threading like this, and what can be comparatively light is curved like this, and special advancing mechanism can satisfy the line type of difference and guarantee the power that advances simultaneously, is equipped with trigger mechanism and reversing mechanism in the device equally, can satisfy different operational environment's use like this, also has certain safety guarantee simultaneously.

Description

Distribution threading device

Technical Field

The invention relates to the technical field of power distribution, in particular to a power distribution threading device.

Background

When the new house fitment, because the threading pipe all buries in the wall body in advance, so when fitment distribution then need the master of distribution with the manual threading operation that carries on of thin iron wire, fix required electric wire at the iron wire afterbody again, thereby the iron wire that the pulling was worn out from another export drives required electric wire and passes through the threading pipe, this kind of artificial mode is very troublesome and consuming time hard, can be injured even sometimes.

Disclosure of Invention

Aiming at the defects of the technology, the invention provides a power distribution threading device which can overcome the defects.

The invention relates to a power distribution threading device, which comprises a gun body, a forward device, a power device and a switch device, wherein the forward device, the power device and the switch device are arranged in the gun body, the forward device comprises an action cavity arranged in the gun body, a first pressing block is fixedly arranged on the top end wall of the action cavity, a first pressing groove is arranged on the bottom end surface of the first pressing block, a second pressing block is arranged in the first pressing groove in a vertically sliding fit manner, a pressing spring is fixedly arranged on the top end surface of the second pressing block and the top end wall of the first pressing groove, a second pressing groove is arranged on the bottom end surface of the second pressing block, a pressing shaft is rotatably matched between the front end wall and the rear end wall of the second pressing groove, a pressing disc is fixedly arranged on the pressing shaft, a forward shaft is rotatably matched between the front end wall and the rear end wall of the action cavity, a forward disc and a first gear are fixedly arranged on the forward shaft, the advancing disc is positioned at the front side of the first gear, an advancing groove is arranged on the excircle end surface of the advancing disc, a first mounting groove is arranged on the left end surface of the gun body, a second mounting groove is arranged on the bottom end wall of the first mounting groove, the bottom end wall of the second mounting groove is provided with a directional groove which extends right and penetrates through the gun body, a first directional pipe which extends left and extends to the advancing groove is fixedly arranged in the directional groove on the right side, a second directional pipe which extends left and extends to the advancing groove is fixedly arranged in the directional groove on the left side, the second mounting groove is internally provided with a rotating block in a rotating fit manner, the rotating block is symmetrically provided with fixed blocks, the fixed block is located between the left end wall and the right end wall of the second mounting groove, a spiral groove penetrating through the fixed block is formed in the left end face of the rotating block, and the spiral groove is communicated with the second directional pipe.

Preferably, the power device comprises a motor fixedly arranged on the front end face of the action cavity, the motor is positioned below the forward shaft, a spline shaft which extends backwards to the rear end face of the action cavity and is in running fit with the motor is arranged on the motor in a power fit manner, a spline shaft sleeve is arranged on the spline shaft in a sliding fit manner, a second gear is fixedly arranged on the spline shaft sleeve, a first direction changing plate is arranged on the spline shaft sleeve in a running fit manner, a fixed plate is fixedly arranged on the right end wall of the action cavity, an arc-shaped plate is fixedly arranged at the left end of the fixed plate, a reverse block is arranged in the action cavity, an arc-shaped groove is arranged on the front end face of the reverse block, the upper end wall and the lower end wall of the arc-shaped groove are both communicated with the outside, the arc-shaped plate is in sliding fit with the arc-shaped groove, a reverse groove is arranged on the left end face of the reverse block, and, the reversing shaft is fixedly provided with a reversing gear, the reversing gear is positioned on the right lower side of the first gear, and the reversing gear is positioned on the left upper side of the spline shaft.

Preferably, the switch device comprises a reverse switch device and a trigger device, the trigger device comprises a second direction-changing plate fixedly arranged on the front end face of the first direction-changing plate, a tension spring is fixedly arranged between the second direction-changing plate and the front end face of the action cavity, a third direction-changing plate is fixedly arranged on the left end face of the second direction-changing plate, a first direction-changing shaft which extends downwards and penetrates through the third direction-changing plate is arranged on the top end face of the third direction-changing plate in a rotating fit manner, a fourth direction-changing plate which inclines backwards is arranged on the lower section of the first direction-changing shaft in a rotating fit manner, a first direction-changing groove is arranged on the fourth direction-changing plate, the first direction-changing groove is positioned on the right side of the first direction-changing shaft, a second direction-changing shaft which extends downwards is arranged in a sliding fit manner in the first direction-changing groove, the second direction-changing shaft is fixedly connected with the bottom end wall of the action cavity, and a third direction-changing shaft which extends downwards is, the gun comprises a gun body, a trigger block, a first direction changing plate, a second direction changing plate, a third direction changing shaft, a third direction changing plate, a trigger case, a trigger cavity, a trigger block, a thrust spring, a third direction changing plate, a third direction changing groove, a sliding groove and a sliding groove, wherein the right end wall of the action cavity is fixedly provided with the fifth direction changing plate, the top end surface of the fifth direction changing plate is provided with the second direction changing groove, the second direction changing groove is in sliding fit with the third direction changing shaft, the trigger case is arranged in the trigger case, the bottom end wall of the action cavity is provided with the third direction changing groove which extends downwards to the trigger cavity, the third direction changing shaft extends downwards to the sliding groove and is in sliding fit with the sliding groove, the third direction changing shaft is fixedly provided with the.

Preferably, the reverse switch device comprises a first control plate fixedly arranged on the bottom end face of the reverse block, a first control groove penetrating left and right is arranged on the first control plate, a second control plate extending right and penetrating through the gun body is arranged in the first control groove in a vertically sliding fit manner, a first wedge block is fixedly arranged on the bottom end face of the second control plate, the first wedge block is positioned on the right side of the first control plate, a first control shaft is arranged on the second control plate in a rotating fit manner, a third control plate is arranged in the action cavity, a second control groove extending right is symmetrically arranged on the front end face of the third control plate, a second control groove extending backward is arranged in the second control groove in a rotating fit manner, the rear side section of the second control groove is in rotating fit with the rear side end wall of the action cavity, and the first control shaft is in sliding fit with the third control plate positioned on the upper side, and the second control groove on the lower side is provided with a third control shaft in a sliding fit manner, the rear side section of the third control shaft is provided with a fourth control plate which extends rightwards and penetrates through the gun body in a rotating fit manner, and a second wedge block is fixedly arranged on the top end surface of the fourth control plate.

In conclusion, the device adopts a gun-type appearance design, the mouth part is provided with the spiral groove, certain rotation can be generated in the threading process, bending can be easily achieved, meanwhile, the special advancing mechanism can meet the requirements of different line types for ensuring advancing power, the device is also internally provided with the trigger mechanism and the reversing mechanism, the use in different working environments can be met, and meanwhile, certain safety guarantee is achieved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of a power distribution threading device according to the present invention;

FIG. 2 is a schematic view taken at A-A in FIG. 1;

FIG. 3 is a schematic view at B-B of FIG. 1;

FIG. 4 is a schematic view at C-C of FIG. 1;

FIG. 5 is a schematic view taken at D-D in FIG. 1;

fig. 6 is a schematic view at E-E in fig. 5.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-6, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

As shown in the figures 1-6 of the drawings,

the invention relates to a power distribution threading device, which comprises a gun body 10, and a forward device, a power device and a switch device which are arranged in the gun body 10, wherein the forward device comprises an action cavity 11 arranged in the gun body 10, a first pressing block 12 is fixedly arranged on the top end wall of the action cavity 11, a first pressing groove 13 is arranged on the bottom end surface of the first pressing block 12, a second pressing block 14 is arranged in the first pressing groove 13 in a vertically sliding fit manner, a pressing spring 15 is fixedly arranged on the top end surface of the second pressing block 14 and the top end wall of the first pressing groove 13, a second pressing groove 16 is arranged on the bottom end surface of the second pressing block 14, a pressing shaft 17 is arranged between the front end wall and the rear end wall of the second pressing groove 16 in a rotating fit manner, a pressing disc 18 is fixedly arranged on the pressing shaft 17, a forward shaft 19 is arranged between the front end wall and the rear end wall of the action cavity 11 in a rotating fit manner, advancing disc 20 and first gear 31 have set firmly on advancing shaft 19, advancing disc 20 is located first gear 31 front side, be equipped with advancing groove 21 on advancing disc 20's the excircle terminal surface, be equipped with first mounting groove 24 on the left side terminal surface of the rifle body 10, be equipped with second mounting groove 23 on first mounting groove 24's the bottom end wall, be equipped with on the bottom end wall of second mounting groove 23 and extend right the orientation groove 22 that runs through the rifle body 10 mutually, be located the right side orientation groove 22 internal stability has left the first orientation pipe 26 that extends to advancing groove 21, be located the left orientation groove 22 internal stability has set firmly the second orientation pipe 27 that extends to left advancing groove 21, second mounting groove 23 internal rotation cooperation is equipped with rotatory piece 28, the symmetry is equipped with fixed block 29 on the rotatory piece 28, fixed block 29 is located between the left side end wall and the right side end wall of second mounting groove 23, and a spiral groove 30 penetrating through the fixed block 29 is formed in the left end face of the rotating block 28, and the spiral groove 30 is communicated with the second directional pipe 27.

Beneficially, the power device includes a motor 32 fixedly arranged on the front end face of the action cavity 11, the motor 32 is located below the forward shaft 19, a spline shaft 33 which extends backwards to the rear end face of the action cavity 11 and is rotatably matched with the front end face of the action cavity 11 is arranged on the motor 32 in a power matching manner, a spline shaft sleeve 34 is arranged on the spline shaft 33 in a sliding fit manner, a second gear 35 is fixedly arranged on the spline shaft sleeve 34, a first direction changing plate 36 is arranged on the spline shaft sleeve 34 in a rotating fit manner, a fixing plate 56 is fixedly arranged on the right side end wall of the action cavity 11, an arc-shaped plate 55 is fixedly arranged at the left end of the fixing plate 56, a reverse block 53 is arranged in the action cavity 11, an arc-shaped groove 54 is arranged on the front end face of the reverse block 53, the upper side end wall and the lower side end wall of the arc-shaped groove 54 are both communicated with the outside, the arc-shaped plate 55 is slidably matched, a reverse shaft 58 is arranged between the front end wall and the rear end wall of the reverse groove 57 in a rotating fit manner, a reverse gear 59 is fixedly arranged on the reverse shaft 58, the reverse gear 59 is positioned at the right lower side of the first gear 31, and the reverse gear 59 is positioned at the left upper side of the spline shaft 33.

Beneficially, the switch device includes a reverse switch device and a trigger device, the trigger device includes a second direction-changing plate 37 fixedly disposed on a front end face of the first direction-changing plate 36, a tension spring 38 is fixedly disposed between the second direction-changing plate 37 and a front end face of the motion cavity 11, a third direction-changing plate 39 is fixedly disposed on a left end face of the second direction-changing plate 37, a first direction-changing shaft 40 extending downward and penetrating through the third direction-changing plate 39 is rotatably disposed on a top end face of the third direction-changing plate 39, a fourth direction-changing plate 41 inclining backward is rotatably disposed on a lower section of the first direction-changing shaft 40, a first direction-changing groove 42 is disposed on the fourth direction-changing plate 41, the first direction-changing groove 42 is located on a right side of the first direction-changing shaft 40, a second direction-changing shaft 43 extending downward is slidably disposed in the first direction-changing groove 42, and the second direction-changing shaft 43 is fixedly connected to a bottom end wall of the motion cavity 11, a third direction-changing shaft 44 extending downward is rotatably fitted on the top end surface of the fourth direction-changing plate 41, a fifth direction-changing plate 46 is fixedly arranged on the right end wall of the action cavity 11, a second direction-changing groove 45 is arranged on the top end surface of the fifth direction-changing plate 46, the second turning groove 45 is in sliding fit with the third turning shaft 44, a trigger box 48 is fixedly arranged on the bottom end face of the gun body 10, a trigger cavity 49 is arranged in the trigger case 48, a third diversion groove 47 which extends downwards to the trigger cavity 49 is arranged on the bottom end wall of the action cavity 11, a sliding groove 50 is arranged on the bottom end wall of the trigger cavity 49, the third steering shaft 44 extends downwards into the sliding groove 50 and is in sliding fit with the sliding groove, a trigger block 51 extending leftwards and penetrating the trigger case 48 is fixedly arranged on the third direction-changing shaft 44, a thrust spring 52 is fixedly arranged between the right end face of the trigger block 51 and the right end wall of the trigger cavity 49.

Advantageously, the reverse switch device comprises a first control plate 60 fixedly arranged on the bottom end surface of the reverse block 53, a first control groove 61 penetrating through the first control plate 60 from left to right is arranged on the first control plate 60, a second control plate 62 extending to right and penetrating through the gun body 10 is arranged in the first control groove 61 in a vertically sliding fit manner, a first wedge 63 is fixedly arranged on the bottom end surface of the second control plate 62, the first wedge 63 is positioned on the right side of the first control plate 60, a first control shaft 64 is arranged on the second control plate 62 in a rotating fit manner, a third control plate 65 is arranged in the action cavity 11, a second control groove 66 extending to right is symmetrically arranged on the front side end surface of the third control plate 65, a second control groove 67 extending to back is arranged in a rotating fit manner on the second control groove 66, and the back side section of the second control groove 67 is rotatably matched with the back side end wall of the action cavity 11, the first control shaft 64 is in sliding fit with the third control plate 65 positioned on the upper side, the second control groove 66 positioned on the lower side is provided with a third control shaft 68 in sliding fit, the rear section of the third control shaft 68 is provided with a fourth control plate 69 which extends through the gun body 10 rightwards in a rotating fit manner, and the top end face of the fourth control plate 69 is fixedly provided with a second wedge block 70.

The applicant will now specifically describe an electrical distribution threading device of the present application with reference to figures 1 to 6 and the above description:

in an initial state, the first pressing groove 13 is in a released state, the thrust spring 52 is in a released state, the tension spring 38 is in a released state, the second gear 35 is disengaged from the first gear 31, the second gear 35 is disengaged from the counter gear 59, the counter gear 59 is disengaged from the first gear 31, a top end surface of the second wedge 70 is in operational contact with a bottom of the first control plate 60, and the first wedge 63 is located on the right side of the first control plate 60;

during forward movement, the second mounting groove 23 is started to drive the spline shaft 33 to rotate, the spline shaft 33 drives the spline shaft sleeve 34 to rotate, the spline shaft sleeve 34 drives the second gear 35 to rotate, the trigger block 51 is buckled to the right, the trigger block 51 moves the thrust spring 52 to the right, the trigger block 51 drives the third direction-changing shaft 44 to move to the right along the second direction-changing groove 45 and the sliding groove 50, the third direction-changing shaft 44 drives the fourth direction-changing plate 41 to rotate clockwise around the second direction-changing shaft 43, the fourth direction-changing plate 41 drives the first direction-changing shaft 40 to move backwards, the first direction-changing shaft 40 drives the third direction-changing plate 39 to move backwards, the third direction-changing plate 39 drives the second direction-changing plate 37 to move backwards, the second direction-changing plate 37 stretches the tension spring 38, the second direction-changing plate 37 moves backwards and drives the first direction-changing plate 36 to move backwards, the first direction changing plate 36 drives the spline shaft sleeve 34 to move backwards, the spline shaft sleeve 34 drives the second gear 35 to move backwards, the second gear 35 is meshed with the first gear 31, the second gear 35 drives the first gear 31 to rotate, the first gear 31 drives the advancing shaft 19 to rotate, the advancing shaft 19 drives the advancing disc 20 to rotate, an iron wire for threading is transmitted into the first directional pipe 26 from the directional groove 22 on the right side, the iron wire passes through the pressing disc 18, the pressing disc 18 presses the iron wire to enable the iron wire to be attached to the advancing groove 21, the iron wire and the inner side end wall of the advancing groove 21 generate friction to move leftwards, and the iron wire passes through the second directional pipe 27 and enters the spiral groove 30.

During backward movement, the trigger block 51 is released, the push spring 52 pushes the trigger block 51 leftward to move leftward, the trigger block 51 leftward moves to drive the third direction-changing shaft 44 leftward, the third direction-changing shaft 44 drives the fourth direction-changing plate 41 to rotate counterclockwise around the second direction-changing shaft 43, the fourth direction-changing plate 41 drives the first direction-changing shaft 40 to move forward, the first direction-changing shaft 40 drives the third direction-changing plate 39 to move forward, the third direction-changing plate 39 drives the second direction-changing plate 37 to move forward, the tension spring 38 is released, the second direction-changing plate 37 drives the first direction-changing plate 36 to move forward, the first direction-changing plate 36 drives the spline shaft sleeve 34 to move forward, the spline shaft sleeve 34 drives the second gear 35 to move forward, the second gear 35 is disengaged from the first gear 31, the second control plate 62 is pushed leftward, and the second control plate 62 drives the first control plate 63 to move leftward, the second control plate 62 drives the first control shaft 64 to move left, the first control shaft 64 drives the third control plate 65 along the second control groove 66 counterclockwise to rotate along the second control groove 67, the third control plate 65 drives the third control shaft 68 to move right through the second control groove 66 located at the lower side, the third control shaft 68 drives the fourth control plate 69 to move right, the fourth control plate 69 drives the second wedge 70 to move right, the second wedge 70 moves right gradually to disengage from the first control plate 60, the first wedge 63 moves left to contact with the bottom end wall of the first control groove 61 to press down the first control plate 60, the first control plate 60 drives the reverse block 53 to move down, the reverse block 53 moves left and right along the arc-shaped plate 55, the reverse block 53 drives the reverse shaft 58 to move down, the reverse gear 59 of the reverse shaft 58 to move down, the reverse gear 59 is engaged with the first gear 31, the trigger block 51 is buckled to the right, the trigger block 51 moves the thrust spring 52 to the right, the trigger block 51 drives the third direction-changing shaft 44 to move to the right along the second direction-changing groove 45 and the sliding groove 50, the third direction-changing shaft 44 drives the fourth direction-changing plate 41 to rotate clockwise around the second direction-changing shaft 43, the fourth direction-changing plate 41 drives the first direction-changing shaft 40 to move backwards, the first direction-changing shaft 40 drives the third direction-changing plate 39 to move backwards, the third direction-changing plate 39 drives the second direction-changing plate 37 to move backwards, the second direction-changing plate 37 stretches the tension spring 38, the second direction-changing plate 37 to move backwards drives the first direction-changing plate 36 to move backwards, the first direction-changing plate 36 drives the spline shaft sleeve 34 to move backwards, and the spline shaft sleeve 34 drives the second gear 35 to move backwards, the second gear 35 with reverse gear 59 meshes, the second gear 35 drives reverse gear 59 rotates, reverse gear 59 drives first gear 31 reversal, first gear 31 drives advancing shaft 19 reversal, advancing shaft 19 drives advancing disc 20 reversal, will be used for the iron wire of threading to follow and spread into in the helicla flute 30 that is located the right side in the second orientation pipe 27, the iron wire passes through when compressing tightly the dish 18 the compress tightly dish 18 pushes down the iron wire make it with advancing groove 21 laminates, the iron wire with advancing groove 21's inboard end wall produces friction and moves right, the iron wire passes through first orientation pipe 26 gets into in orientation groove 22, it can to use the back closed power supply.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a distribution threading device, includes the rifle body and sets up advancing device, power device and switching device in the rifle body which characterized in that: the advancing device comprises an action cavity arranged in the gun body, a first pressing block is fixedly arranged on the top end wall of the action cavity, a first pressing groove is formed in the bottom end surface of the first pressing block, a second pressing block is arranged in the first pressing groove in an up-down sliding fit manner, a pressing spring is fixedly arranged on the top end surface of the second pressing block and the top end wall of the first pressing groove, a second pressing groove is formed in the bottom end surface of the second pressing block, a pressing shaft is arranged between the front side end wall and the rear side end wall of the second pressing groove in a rotating fit manner, a pressing disc is fixedly arranged on the pressing shaft, an advancing shaft is arranged between the front side end wall and the rear side end wall of the action cavity in a rotating fit manner, a advancing disc and a first gear are fixedly arranged on the advancing shaft, the advancing disc is positioned on the front side of the first gear, an advancing groove is formed in the excircle end surface of the advancing disc, the gun comprises a gun body, a fixing block, a fixing groove, a first mounting groove, a second mounting groove, a directional groove, a first directional pipe, a second directional pipe, a rotary block, a fixing block, a spiral groove and a second directional pipe, wherein the gun body is arranged on the left end face of the gun body; the power device comprises a motor fixedly arranged on the front end face of the action cavity, the motor is positioned below the advancing shaft, a spline shaft which extends backwards to the rear end face of the action cavity and is in running fit with the motor is arranged on the motor in a power fit manner, a spline shaft sleeve is arranged on the spline shaft in a sliding fit manner, a second gear is fixedly arranged on the spline shaft sleeve, a first direction changing plate is arranged on the spline shaft sleeve in a running fit manner, a fixed plate is fixedly arranged on the right end wall of the action cavity, an arc-shaped plate is fixedly arranged at the left end of the fixed plate, a reverse block is arranged in the action cavity, an arc-shaped groove is arranged on the front end face of the reverse block, the upper end wall and the lower end wall of the arc-shaped groove are communicated with the outside, the arc-shaped plate is in sliding fit with the arc-shaped groove, a reverse groove is arranged on the left end face of the reverse block, and, a reverse gear is fixedly arranged on the reverse shaft, the reverse gear is positioned on the right lower side of the first gear, and the reverse gear is positioned on the left upper side of the spline shaft; the switch device comprises a reverse switch device and a trigger device, the trigger device comprises a second direction-changing plate fixedly arranged on the front end face of the first direction-changing plate, a tension spring is fixedly arranged between the second direction-changing plate and the front end face of the action cavity, a third direction-changing plate is fixedly arranged on the left end face of the second direction-changing plate, a first direction-changing shaft which extends downwards and penetrates through the third direction-changing plate is arranged on the top end face of the third direction-changing plate in a rotating fit mode, a fourth direction-changing plate which inclines backwards is arranged on the lower section of the first direction-changing shaft in a rotating fit mode, a first direction-changing groove is formed in the fourth direction-changing plate and is positioned on the right side of the first direction-changing shaft, a second direction-changing shaft which extends downwards is arranged in a sliding fit mode in the first direction-changing groove, the second direction-changing shaft is fixedly connected with the bottom end wall of the action cavity, and a third direction-changing shaft which extends downwards is arranged on the top, a fifth turning plate is fixedly arranged on the right end wall of the action cavity, a second turning groove is formed in the top end face of the fifth turning plate, the second turning groove is in sliding fit with a third turning shaft, a trigger case is fixedly arranged on the bottom end face of the gun body, a trigger cavity is arranged in the trigger case, a third turning groove extending downwards to the trigger cavity is formed in the bottom end wall of the action cavity, a sliding groove is formed in the bottom end wall of the trigger cavity, the third turning shaft extends downwards into the sliding groove and is in sliding fit with the sliding groove, a trigger block extending leftwards and penetrating through the trigger case is fixedly arranged on the third turning shaft, and a thrust spring is fixedly arranged between the right end face of the trigger block and the right end wall of the trigger cavity; the reverse switch device comprises a first control panel fixedly arranged on the bottom end face of the reverse block, a first control groove which penetrates through the reverse block from left to right is arranged on the first control panel, a second control panel which extends rightwards and penetrates through the gun body is arranged in the first control groove in a vertically sliding fit manner, a first wedge block is fixedly arranged on the bottom end face of the second control panel, the first wedge block is positioned on the right side of the first control panel, a first control shaft is arranged on the second control panel in a rotating fit manner, a third control panel is arranged in the action cavity, a second control groove which extends rightwards is symmetrically arranged on the front side end face of the third control panel, a second control groove which extends backwards is arranged in a rotating fit manner, the rear side section of the second control groove is in rotating fit with the rear side end wall of the action cavity, and the first control shaft is in sliding fit with the third control panel positioned on the upper side, and the second control groove on the lower side is provided with a third control shaft in a sliding fit manner, the rear side section of the third control shaft is provided with a fourth control plate which extends rightwards and penetrates through the gun body in a rotating fit manner, and a second wedge block is fixedly arranged on the top end surface of the fourth control plate.