CN220383968U - Pet tractor switch auto-lock structure and pet tractor - Google Patents

Abstract

The utility model relates to a self-locking switch structure field especially relates to a pet tractor switch self-locking structure and pet tractor, in order to solve current switch self-locking structure and need realize the location of plectrum with the help of the spring, the structure is comparatively complicated, problem that installation effectiveness is low, it includes the locking piece module, the locking piece module includes locking piece and plectrum, be provided with the installation component on locking piece and the plectrum, rotate through the installation component between locking piece and the plectrum and be connected; the locking block and the shifting block are also provided with a positioning component so as to limit the shifting block to rotate relative to the locking block; the plectrum is provided with the inserted block, the inserted block cooperates with the pet tractor in order to lock the position of locking block module. The switch structure is simplified, and production and assembly efficiency are improved.

Description

Pet tractor switch auto-lock structure and pet tractor

Technical Field

The application relates to the field of self-locking switch structures, in particular to a switch self-locking structure of a pet tractor and the pet tractor.

Background

The self-locking switch generally means that the switch has a mechanical locking function, the button cannot be completely jumped up after being pressed and loosened, and the self-locking switch is unlocked only when the button is required to be pressed once again and the button is completely jumped up after unlocking. The main function of the pet tractor is to realize the retraction of the traction rope, a self-locking switch is required to be arranged in the pet tractor, and when the length of the traction rope extending out of the pet tractor is proper, a user can lock the traction rope by using the self-locking switch.

The existing self-locking switch is generally assembled by a locking block, a button and a pulling piece. Pressing the button, pushing the locking block to move to a designated position, and locking the traction rope; the plectrum is rotated to the appointed position, through the spring lock between button and the plectrum, the locking piece is also locked. A rotary table for winding a traction rope is rotatably arranged in the existing pet tractor, a plurality of ratchets are uniformly distributed on the peripheral wall of the rotary table, and locking blocks are inserted between adjacent ratchets to prevent the rotary table from rotating.

In carrying out the present application, the inventors have found that at least the following problems exist in this technology: the self-locking switch is complex in structure, the positioning of the shifting piece is realized by means of the spring, the production and assembly processes are complex, and the efficiency is low.

Disclosure of Invention

In order to simplify the switch structure and improve production and assembly efficiency, the application provides a pet tractor switch self-locking structure and a pet tractor.

In a first aspect, the present application provides a pet tractor switch auto-lock structure that adopts following technical scheme:

the utility model provides a pet tractor switch auto-lock structure, includes the locking piece module, the locking piece module includes locking piece and plectrum, be provided with the installation component on locking piece and the plectrum, rotate through the installation component between locking piece and the plectrum and connect; the locking block and the shifting block are also provided with a positioning component so as to limit the shifting block to rotate relative to the locking block; the plectrum is provided with the inserted block, the inserted block cooperates with the pet tractor in order to lock the position of locking block module.

Through adopting above-mentioned technical scheme, the installation is accomplished to locking piece and plectrum utilization installation component, and when needs locking piece module auto-lock, the user makes the plectrum rotatory around the locking piece, and the expansion end of plectrum is kept away from or is close to the locking piece, utilizes the rotation angle of locating component restriction plectrum to make plectrum and pet tractor's relative position lock. The locking block module is simple in structure, and the positioning of the shifting piece can be realized without a spring; and the production and installation efficiency of the switch self-locking structure are improved.

Optionally, the positioning assembly comprises a positioning plate and a positioning rod, the positioning plate is arranged on the side wall of the locking block, and a first positioning groove and a second positioning groove are formed in the positioning plate; the positioning rod is fixedly arranged on the side wall of the shifting piece, a short rod is arranged on the positioning rod, and the short rod can be inserted into the first positioning groove or the second positioning groove.

Optionally, the positioning assembly comprises a positioning rod and a stop block, a cavity is formed in the lock block, the stop block is installed in the cavity, and a first positioning groove and a second positioning groove are formed in the stop block; the locating rod is arranged at one end of the shifting piece, which is close to the stop block, and is provided with a short rod which can be inserted into the first locating groove or the second locating groove.

Through adopting above-mentioned technical scheme, when the short lever card goes into first constant head tank, the length direction of plectrum is parallel with the length direction of locking piece, and plectrum and locking piece laminating. When the plectrum rotates, the plectrum rotates and drives the quarter butt to jump out of first constant head tank, until the quarter butt card goes into the second constant head tank, the plectrum stops rotating, and the angle that the plectrum was lifted for the locking piece this moment locks to make plectrum and pet tractor lock. The positioning plate, the baffle plate and the positioning rod are uniformly formed on the locking block and the poking piece, so that the production efficiency of the switch self-locking structure is improved; the positioning rod and the short rod are made of plastic, positioning is achieved through elastic deformation of plastic materials, a spring is not needed, and production and installation efficiency of the switch self-locking structure are improved.

Optionally, the installation component includes mounting panel and installation pole, mounting panel fixed connection is on the lateral wall of locking piece, on the lateral wall of installation pole fixed connection plectrum, rotate between mounting panel and the installation pole and be connected.

Optionally, a square hole is formed in the top of the mounting plate, far from the locking block, the square hole is provided with a round hole close to the inner wall of the locking block, and the width of the square hole is smaller than the diameter of the round hole; the minimum width of the section of the mounting rod is equal to the width of the square hole, and the maximum width of the section of the mounting rod is the same as the diameter of the inner wall of the round hole.

By adopting the technical scheme, when the locking block module is assembled, an operator firstly makes the length direction of the poking plate perpendicular to the length direction of the locking block, at the moment, the straight section of the outer edge of the section of the mounting rod is perpendicular to the length direction of the locking block, the mounting rod is inserted into the square hole and continuously moves, and at the moment, the straight section of the mounting rod is attached to the inner wall of the square hole; when one of the circular arc sections of the installation rod is attached to the inner wall of the round hole, the rotation shifting piece drives the installation rod to rotate, when the two circular arc sections of the installation rod are attached to the inner wall of the round hole completely, rotation is stopped, at the moment, the length direction of the shifting piece is parallel to the length direction of the locking piece, the installation rod cannot deviate from the square hole under the limitation of the inner wall of the square hole, and the installation of the shifting piece and the locking piece is completed. The mounting assembly is utilized, and the poking plate can realize small-amplitude stable rotation; the mounting plate and the mounting rod are integrally formed on the locking piece and the poking piece, so that the switch self-locking structure is simple in structure, and the production and assembly efficiency of the switch self-locking structure are improved.

Optionally, friction lines are arranged on the poking plate, and the friction lines are arranged at the tail end of the poking plate far away from the mounting rod.

By adopting the technical scheme, a user can stir the poking piece by utilizing friction lines and static friction force of the hand, so that the movable end of the poking piece is far away from or close to the locking piece.

In a second aspect, the present application provides a pet tractor that employs the following technical scheme:

optionally, the pet tractor comprises a shell, the locking block module is slidably installed in the shell, a slot is formed in the side wall, close to the poking plate, of the shell, and the inserting block can be inserted into the slot; still be provided with rotary module in the casing, rotary module installs in the one side of locking piece module, the one end that the locking piece is close to rotary module is provided with the lug, the lug can cooperate with rotary module to the rotation of restriction rotary module.

Through adopting above-mentioned technical scheme, when the casing is freely stretched out and retracted to the haulage rope that needs, the user does not press the locking piece, and the lug is kept away from the ratchet, plectrum and locking piece laminating this moment. When the length of the traction rope extending out of the shell needs to be fixed, a user presses the locking block, the pushing protruding blocks are clamped between the adjacent ratchets, at this time, the turntable cannot rotate, and the locking block module locks the rotating module. The user dials the plectrum, locks plectrum and locking piece, and the inserted block on the plectrum inserts to the slot in, and the temporary locking of position is realized for the casing to the locking piece module. The rotary module is locked by the locking block module, so that the length of the traction rope extending out of the shell can be automatically adjusted, and the use of products is facilitated; the switch self-locking structure is simple, and the production and assembly efficiency of the pet tractor using the switch self-locking structure is improved.

Optionally, a reset spring is arranged in the installation area of the shell, one end of the reset spring is connected with the shell, and the other end of the reset spring is abutted against the locking piece.

By adopting the technical scheme, when the traction rope is required to freely extend and retract from the shell, the user does not press the locking piece, and the return spring is in a relaxed state. When the length of the traction rope extending out of the shell needs to be fixed, a user presses the locking block firstly, the reset spring is compressed, and meanwhile the poking piece is lifted to enable the inserting block to be inserted into the slot; the user releases the locking piece again, and reset spring jack-up the locking piece to the direction of keeping away from rotary module, until the perisporium of inserted block supports tightly on the inner wall of slot, and the locking piece module is locked for the casing. When the length of the traction rope extending out of the shell needs to be changed again, the plug blocks slide out of the slots, a user releases the locking blocks, the reset springs push the locking blocks to the direction away from the rotating module, the locking of the rotating disc is released, the traction rope can extend out of and retract into the shell, and at the moment, the locking block modules are reset. The locking of the light-opening self-locking structure is reinforced by the reset spring, and meanwhile, the reset of the locking block module is realized, so that the product is convenient to use.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the locking block module is needed to be self-locked, a user makes the plectrum rotate around the locking block, the movable end of the plectrum is far away from or close to the locking block, and the positioning component is used for limiting the rotation angle of the plectrum so as to lock the relative position of the plectrum and the pet tractor. The locking block module is simple in structure, and the positioning of the shifting piece can be realized without a spring; the production and installation efficiency of the switch self-locking structure are improved;

2. when the short rod is clamped into the first positioning groove, the length direction of the poking plate is parallel to the length direction of the locking piece, and the poking plate is attached to the locking piece. When the plectrum rotates, the plectrum rotates and drives the quarter butt to jump out of first constant head tank, until the quarter butt card goes into the second constant head tank, the plectrum stops rotating, and the angle that the plectrum was lifted for the locking piece this moment locks to make plectrum and pet tractor lock. The positioning plate, the baffle plate and the positioning rod are uniformly formed on the locking block and the poking piece, so that the production efficiency of the switch self-locking structure is improved; the positioning rod and the short rod are made of plastic, positioning is realized through elastic deformation of plastic materials, a spring is not needed, and the production and installation efficiency of the switch self-locking structure is improved;

3. when the traction rope is required to freely extend out of and retract into the shell, the user does not press the locking piece, the protruding block is far away from the ratchet, and the pulling piece is attached to the locking piece. When the length of the traction rope extending out of the shell needs to be fixed, a user presses the locking block, the pushing protruding blocks are clamped between the adjacent ratchets, at this time, the turntable cannot rotate, and the locking block module locks the rotating module. The user dials the plectrum, locks plectrum and locking piece, and the inserted block on the plectrum inserts to the slot in, and the temporary locking of position is realized for the casing to locking piece module 1. The rotary module is locked by the locking block module, so that the length of the traction rope extending out of the shell can be automatically adjusted, and the use of products is facilitated; the switch self-locking structure is simple, and the production and assembly efficiency of the pet tractor using the switch self-locking structure is improved.

Drawings

Fig. 1 is a front view of a pet tractor switch self-locking mechanism of embodiment 1 of the present application.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is a cross-sectional view of the pet retractor of example 1 of the present application.

Fig. 4 is an enlarged schematic view of B in fig. 3.

Fig. 5 is a cross-sectional view of a pet tractor switch self-locking mechanism of embodiment 2 of the application.

Reference numerals illustrate: 1. a locking block module; 11. a locking piece; 111. a bump; 12. a pulling piece; 121. inserting blocks; 122. rubbing lines; 13. a mounting assembly; 131. a mounting plate; 1311. square holes; 1312. a round hole; 132. a mounting rod; 14. a positioning assembly; 141. a positioning plate; 1411. a first positioning groove; 1412. a second positioning groove; 142. a positioning rod; 143. a stop block; 144. a short bar; 2. a housing; 21. a slot; 22. pressing the hole; 23. a connecting plate; 3. a rotation module; 31. a turntable; 32. a ratchet buckle; 33. a traction rope; 4. and a return spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

Example 1

The embodiment 1 of the application discloses a pet tractor switch auto-lock structure. Referring to fig. 1, the pet tractor switch self-locking structure includes a locking block module 1, and the locking block module 1 includes a locking block 11 and a pulling piece 12. The lock block 11 and the poking piece 12 are provided with a mounting assembly 13, and the lock block 11 is rotationally connected with the poking piece 12 through the mounting assembly 13; one end of the poking piece 12 is rotatably connected with one end of the locking piece 11 through the mounting component 13, and the locking piece 11 and the other end of the poking piece 12 are movably arranged. The lock block 11 and the poking piece 12 are also provided with a positioning component 14, and the positioning component 14 limits the rotation angle between the lock block 11 and the poking piece 12; the positioning assembly 14 is mounted between the mounting assembly 13 and the movable end.

The side wall of the poking piece 12 far away from the locking piece 11 is integrally formed with an inserting block 121, the cross section of the inserting block 121 is triangular, and the apex angle of the triangular cross section far away from the poking piece 12 is an acute angle. The insert 121 cooperates with the pet leash to fix the position of the paddle 12 relative to the pet leash. The plectrum 12 is provided with friction lines 122, and the friction lines 122 are integrally formed on the movable end of the plectrum 12.

When the lock block module 1 is required to be self-locked, a user rotates the plectrum 12 around the lock block 11 through friction lines 122, the movable end of the plectrum 12 is far away from or close to the lock block 11, and the rotation angle of the plectrum 12 is limited by the positioning component 14, so that the relative position of the plectrum 12 and the pet tractor is locked.

Referring to fig. 1 and 2, the mounting assembly 13 includes two mounting plates 131 and two mounting rods 132, the two mounting plates 131 are integrally formed on two side walls of the locking piece 11, one end of the mounting plate 131, which is close to the pulling piece 12, protrudes out of the locking piece 11, a square hole 1311 is provided in the mounting plate 131, which is close to the top wall of the pulling piece 12, the square hole 1311 is provided through the mounting plate 131 in the thickness direction, a circular hole 1312 is provided in the inner wall of the square hole 1311, which is close to the locking piece 11, the circular hole 1312 is provided through the mounting plate 131 in the thickness direction, and the width of the square hole 1311 is smaller than the diameter of the circular hole 1312.

The two mounting rods 132 are integrally formed on the two side walls of the poking piece 12, the cross section of the connecting surface of the mounting rods 132 and the poking piece 12 is waist-shaped, the straight sections of the waist-shaped cross section are matched with the square holes 1311, the maximum distance between the straight sections on the two sides of the waist-shaped cross section is equal to the width of the square holes 1311, the straight sections of the mounting rods 132 can pass through the square holes 1311, and the straight sections of the mounting rods 132 are parallel to the length direction of the poking piece 12; the circular arc sections of the kidney-shaped section are matched with the circular hole 1312, and the maximum distance between the circular arc sections at the two sides of the kidney-shaped section is equal to the diameter of the circular hole 1312.

When the locking block module 1 is assembled, an operator firstly makes the length direction of the pulling piece 12 perpendicular to the length direction of the locking block 11, at the moment, the straight section of the outer edge of the section of the mounting rod 132 is perpendicular to the length direction of the locking block 11, the mounting rod 132 is inserted into the square hole 1311 and moves continuously, and at the moment, the straight section of the mounting rod 132 is attached to the inner wall of the square hole 1311; when the installation pole 132 moves to the round hole 1312, one of the circular arc sections of the installation pole 132 is attached to the inner wall of the round hole 1312, the rotation plectrum 12 drives the installation pole 132 to rotate, when the two circular arc sections of the installation pole 132 are all attached to the inner wall of the round hole 1312 completely, the rotation is stopped, at this time, the length direction of the plectrum 12 is parallel to the length direction of the locking piece 11, the installation pole 132 cannot be separated from the square hole 1311 under the limitation of the inner wall of the square hole 1311, and the installation of the plectrum 12 and the locking piece 11 is completed.

Referring to fig. 1 and 2, the positioning assembly 14 includes a positioning plate 141 and a positioning rod 142. The locating plate 141 integrated into one piece is on the lateral wall that the locking piece 11 is close to arbitrary mounting panel 131 department, has seted up first constant head tank 1411 and second constant head tank 1412 on the lateral wall that the locating plate 141 deviates from mounting panel 131, and first constant head tank 1411 keeps away from plectrum 12 setting, and second constant head tank 1412 is close to plectrum 12 setting.

The positioning rod 142 is integrally formed at the position, close to the positioning plate 141, of the side wall of the shifting plate 12, one end, close to the locking block 11, of the positioning rod 142 is provided with the short rod 144, the short rod 144 is integrally formed on the side wall, close to the positioning plate 141, of the positioning rod 142, and the short rod 144 can be inserted into the first positioning groove 1411 or the second positioning groove 1412. The positioning rod 142 and the short rod 144 are made of plastic and can be elastically deformed.

When the short lever 144 is engaged in the first positioning groove 1411, the longitudinal direction of the pulling piece 12 is parallel to the longitudinal direction of the locking piece 11, and the pulling piece 12 is attached to the locking piece 11. When the pulling piece 12 is rotated, the pulling piece 12 rotates to drive the short rod 144 to jump out of the first positioning groove 1411 until the short rod 144 is clamped into the second positioning groove 1412, the pulling piece 12 stops rotating, and at the moment, the pulling piece 12 is locked relative to the lifting angle of the locking piece 11, so that the pulling piece 12 is locked with the pet tractor.

The implementation principle of the embodiment 1 is as follows: when the locking block module 1 is assembled, an operator firstly makes the length direction of the pulling piece 12 perpendicular to the length direction of the locking block 11, inserts the mounting rod 132 into the square hole 1311 and continues to move until one circular arc section of the mounting rod 132 contacts with the inner wall of the circular hole 1312, and then rotates the pulling piece 12 to drive the mounting rod 132 to rotate around the center axis of the circular hole 1312; when both circular arc sections of the mounting rod 132 are completely attached to the inner wall of the circular hole 1312, the mounting of the plectrum 12 and the locking piece 11 is completed. When the short rod 144 on the positioning rod 142 is clamped into the first positioning groove 1411 on the positioning plate 141, the poking plate 12 is abutted against the locking block 11, and the locking block module 1 can move relative to the pet tractor; when the lever 144 snaps into the second detent 1412, the lifting angle of the paddle 12 relative to the lock block 11 locks, as does the position of the paddle 12 relative to the pet retractor.

The embodiment of the application also discloses a pet tractor. Referring to fig. 3 and 4, the pet tractor includes a housing 2, a mounting region is provided in the housing 2, and a locking block module 1 is slidably mounted in the mounting region. The outer wall of the shell 2 is provided with a pressing hole 22, the pressing hole 22 penetrates through the shell 2 and is communicated with the installation area, and the movable end, far away from the installation assembly 13, of the lock block 11 and the pulling piece 12 penetrates out of the shell 2 through the pressing hole 22. The inner wall of the shell 2 is provided with a slot 21, and the slot 21 is positioned at one end of the shell 2 close to the pressing hole 22.

Still install rotary module 3 in the installation zone of casing 2, rotary module 3 rotates and connects in the one side of locking piece module 1, and rotary module 3 is including the carousel 31 that is used for winding haulage rope 33, has evenly arranged a plurality of ratchet 32 on carousel 31 the week wall. The locking piece 11 is provided with a lug 111 near one end of the rotating module 3, the lug 111 is inserted between the adjacent ratchets 32, and the turntable 31 cannot rotate.

The installation area of casing 2 is interior still to be provided with connecting plate 23, and connecting plate 23 integrated into one piece is on the lateral wall that casing 2 is close to locking piece 11, has seted up the breach on the lateral wall of locking piece 11, and the breach runs through two lateral walls of locking piece 11, and casing 2 is connected to connecting plate 23 one end, and the other end passes from the breach of locking piece 11 lateral wall. And a reset spring 4 is further arranged between the connecting plate 23 and the locking block 11, one end of the reset spring 4 is abutted against the side wall of the connecting plate 23, which is away from the rotary module 3, and the other end is abutted against the inner wall of the cavity of the locking block 11, which is away from the rotary module 3.

The implementation principle of the pet tractor in the embodiment of the application is as follows: when the pulling rope 33 is required to freely extend and retract from the shell 2, the user does not press the locking piece 11, the protruding block 111 is far away from the ratchet 32, at this time, the pulling piece 12 is attached to the locking piece 11, and the reset spring 4 is in a relaxed state.

When the length of the traction rope 33 extending out of the shell 2 needs to be fixed, a user presses the locking block 11, the pushing protruding block 111 is clamped between the adjacent ratchets 32, the turntable 31 cannot rotate at this time, and the locking block module 1 locks the rotating module 3; the return spring 4 is compressed. The user uses the friction lines 122 and the static friction force of the hand to stir the poking plate 12, so as to lock the poking plate 12 and the locking piece 11, and the inserting block 121 on the poking plate 12 is inserted into the inserting groove 21. The user releases the locking block module 1 again, and the return spring 4 pushes up the locking block 11 in a direction away from the rotating module 3 until the peripheral wall of the insert block 121 abuts against the inner wall of the slot 21, so that the locking block module 1 is locked relative to the housing 2.

When the length of the traction rope 33 extending out of the shell 2 needs to be changed again, a user presses the lock block 11 towards the direction of the rotary module 3 to separate the insert block 121 from the inner wall of the slot 21, and simultaneously rotates the plectrum 12 towards the direction close to the lock block 11 to enable the insert block 121 to slide out of the slot 21; the user releases the locking piece 11, the return spring 4 pushes the locking piece 11 to the direction away from the rotary module 3, the convex blocks 111 are pulled out from the adjacent ratchets 32, the locking of the turntable 31 is released, and the traction rope 33 can extend and retract into the shell 2; at this time, the lock block module 1 is reset.

Example 2

Referring to fig. 5, the present embodiment is different from embodiment 1 in that the positioning assembly 14 includes a positioning rod 142 and a stopper 143. The dog 143 integrated into one piece is in the inside cavity of locking piece 11, and first constant head tank 1411 and second constant head tank 1412 have also been seted up on the inner wall that dog 143 kept away from mounting panel 131, and first constant head tank 1411 keeps away from plectrum 12 setting, and second constant head tank 1412 is close to plectrum 12 setting. The positioning rod 142 is integrally formed at one end of the pulling piece 12 far away from the mounting rod 132, and the positioning rod 142 is inserted into the inner cavity of the lock block 11 and slides in the inner cavity; the end of the positioning rod 142 away from the pulling piece 12 is provided with a short rod 144, the short rod 144 is integrally formed on the side wall of the positioning rod 142 near the stop 143, and the short rod 144 can be inserted into the first positioning groove 1411 or the second positioning groove 1412. The positioning rod 142 and the short rod 144 are made of plastic and can be elastically deformed.

The implementation principle of the embodiment 2 is as follows: when the short lever 144 is engaged in the first positioning groove 1411, the longitudinal direction of the pulling piece 12 is parallel to the longitudinal direction of the locking piece 11, and the pulling piece 12 is attached to the locking piece 11. When the pulling piece 12 is rotated, the short lever 144 jumps out of the first positioning groove 1411 until the short lever 144 is blocked into the second positioning groove 1412, the pulling piece 12 stops rotating, and at this time, the pulling piece 12 is locked relative to the lifting angle of the locking piece 11, so that the inserting block 121 on the pulling piece 12 is inserted into the inserting groove 21 on the shell 2, and the pulling piece 12 is locked with the shell 2.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A pet tractor switch auto-lock structure, its characterized in that: the lock comprises a lock block module (1), wherein the lock block module (1) comprises a lock block (11) and a poking piece (12), an installation component (13) is arranged on the lock block (11) and the poking piece (12), and the lock block (11) is rotationally connected with the poking piece (12) through the installation component (13); the lock block (11) and the poking piece (12) are also provided with a positioning component (14) so as to limit the poking piece (12) to rotate relative to the lock block (11); the plectrum (12) is provided with an insert block (121), and the insert block (121) is matched with the pet tractor to lock the position of the locking block module (1).

2. The pet retractor switch self-locking mechanism of claim 1, wherein: the positioning assembly (14) comprises a positioning plate (141) and a positioning rod (142), the positioning plate (141) is arranged on the side wall of the locking block (11), and a first positioning groove (1411) and a second positioning groove (1412) are formed in the positioning plate (141); the positioning rod (142) is fixedly arranged on the side wall of the poking piece (12), a short rod (144) is arranged on the positioning rod (142), and the short rod (144) can be inserted into the first positioning groove (1411) or the second positioning groove (1412).

3. The pet retractor switch self-locking mechanism of claim 1, wherein: the positioning assembly (14) comprises a positioning rod (142) and a stop block (143), a cavity is formed in the lock block (11), the stop block (143) is installed in the cavity, and a first positioning groove (1411) and a second positioning groove (1412) are formed in the stop block (143); the positioning rod (142) is arranged at one end of the poking piece (12) close to the stop block (143), the positioning rod (142) is provided with a short rod (144), and the short rod (144) can be inserted into the first positioning groove (1411) or the second positioning groove (1412).

4. The pet retractor switch self-locking mechanism of claim 1, wherein: the mounting assembly (13) comprises a mounting plate (131) and a mounting rod (132), wherein the mounting plate (131) is fixedly connected to the side wall of the locking block (11), the mounting rod (132) is fixedly connected to the side wall of the poking piece (12), and the mounting plate (131) is rotationally connected with the mounting rod (132).

5. The pet retractor switch self-locking mechanism of claim 4, wherein: the top of the mounting plate (131) far away from the locking block (11) is provided with a square hole (1311), a round hole (1312) is formed in the inner wall, close to the locking block (11), of the square hole (1311), and the width of the square hole (1311) is smaller than the diameter of the round hole (1312); the minimum width of the section of the mounting rod (132) is equal to the width of the square hole (1311), and the maximum width of the section of the mounting rod (132) is the same as the diameter of the inner wall of the round hole (1312).

6. The pet retractor switch self-locking mechanism of claim 1, wherein: friction lines (122) are arranged on the poking piece (12), and the friction lines (122) are arranged at the tail end of the poking piece (12) far away from the mounting rod (132).

7. A pet tractor employing the switch self-locking structure of any one of claims 1-6, characterized in that: the lock block module (1) is slidably mounted in the shell (2), a slot (21) is formed in the side wall, close to the poking piece (12), of the shell (2), and the insert block (121) can be inserted into the slot (21); still be provided with rotary module (3) in casing (2), rotary module (3) are installed in one side of locking piece module (1), locking piece (11) are provided with lug (111) near the one end of rotary module (3), lug (111) can cooperate with rotary module (3) to the rotation of restriction rotary module (3).

8. The pet retractor of claim 7, wherein: a reset spring (4) is arranged in the installation area of the shell (2), one end of the reset spring (4) is connected with the shell (2), and the other end of the reset spring is abutted to the locking block (11).