WO2020173091A1

WO2020173091A1 - Cord reel locking mechanism for pet lead

Info

Publication number: WO2020173091A1
Application number: PCT/CN2019/108796
Authority: WO
Inventors: 陈四龙
Original assignee: 东莞市佳晟实业有限公司
Priority date: 2019-02-28
Filing date: 2019-09-28
Publication date: 2020-09-03
Also published as: CN109699515A

Abstract

A cord reel locking mechanism for a pet lead, comprising: a brake member (2) which engages with a cord reel (1) and stops the same from rotating; an elastic member (3) which is elastically pressed against the brake member (2) to cause the brake member (2) to separate from the cord reel (1); a pressing member (4) that contacts the brake member (2) and pushes the brake member (2) to rotate; a push button (5) slidably disposed on the pressing member (4); and a locking block (61) that presses against the push button (5) to lock the cord reel (1). The brake member (2) and the elastic member (3) are hinged to a side wall of a lead housing (6) via a first cylindrical pin (7). A front end of the pressing member (4) is hinged to the side wall of the lead housing (6) via a second cylindrical pin (8). The locking block (61) is fixed to the side wall of the lead housing (6). An upper portion of the push button (5) protrudes outward and is provided with a toggle block (51). A lower portion of the push button (5) is provided with a locking hook (52) engageable with the locking block (61). The cord reel locking mechanism has structural simplicity, and integrates the pressing member (4), which controls a temporary stopping operation, and the push button (5), which controls an open or lock state, thereby providing operational convenience and smoothness.

Description

Wire wheel locking mechanism of pet tractor Technical field

The present invention relates to the technical field of pet tractors, and in particular to a reel locking mechanism of a pet tractor. Background technique

More and more people start to use pet tractors to leash their pet dogs out for walking. The reel locking mechanism in the pet tractor is an important part of the pet tractor. It needs to have the dual braking function of suspending the reel rotation and locking the reel rotation. At present, the reel locking mechanism of the existing pet tractor usually needs to push other auxiliary buttons after pressing the lock button to complete the braking function of locking the reel rotation. The structure is relatively complicated and the operation requires two actions. Not convenient enough. Summary of the invention

In order to solve the above technical problems, the present invention provides a reel locking mechanism of a pet tractor, which has a simple structure and integrates the key for controlling the pause and the key for controlling the open and locked states into one body, so as to make the operation convenient and smooth. it is good.

The present invention provides the following technical solutions. A reel locking mechanism of a pet tractor includes: a locking member that engages with the reel to prompt the reel to stop rotating; elastically abuts against the locking member to prompt the locking member The elastic member that leaves the wire wheel; the pressing member that is against the locking member and is used to push the locking member to rotate; the push button that is slidably arranged on the pressing member; the locking block that resists the push button to promote the locking of the wire wheel; the card The stopper and the elastic member are hinged to the side wall of the tractor housing through a first cylindrical pin, the front end of the pressing member is hinged to the side wall of the tractor housing through a second cylindrical pin, and the lock The dead block is fixed on the side wall of the tractor housing, the upper part of the push button is provided with a toggle block protruding outward, and the lower part of the push button is provided with a deadlock hook matching the deadlock block ; Press the push button and the pressing member, and then push the locking member to engage with the wire wheel so as to urge the wire wheel to stop rotating; Toggle the toggle on the push button backward Block, and then drive the deadlocking hook to abut against the deadlocking block to promote the locking of the wire wheel.

Further, the upper part of the locking member is bent to provide a resisting body that abuts against the pressing member, and the lower part of the locking member is provided with a card body that engages with the teeth on the wire wheel.

Further, the lower part of the pressing member is provided with a containing groove for containing the resisting body, and the rear end of the containing groove is provided with a blocking protrusion that prevents the resisting body from falling off.

Further, the side wall of the tractor housing is provided with an abutment wall on one side of the first cylindrical pin, the elastic member is sleeved on the first cylindrical pin, and one end of the elastic member abuts against The other end of the abutting wall abuts against the inner wall of the locking member.

Further, a sliding block is provided in the middle of the push button, the pressing member is provided with a sliding groove for the sliding block to slide back and forth, and the sliding block is provided to prevent the push button from falling out of the sliding groove The anti-stripping strip. Preferably, the shift block is provided with a rear shift part for backward shifting and a forward push part for forward push, and a plurality of anti-slip bumps are evenly arranged on the rear shift part, and Anti-slip bumps protrude outward on the front push part.

Preferably, a positioning block is protruded from the end of the pressing member, and a positioning groove matching the positioning block is provided at the end of the toggle block.

The beneficial effects of the present invention are as follows: The present invention has simple structure, reasonable design, good working stability and smooth operation. The push button and the pressing part are combined into one body, so that the pet tractor has three working states: open, locked and suspended . At the same time, the following structural design is adopted, that is, the push button is matched with the pressing piece, the pressing piece is matched with the locking piece, and the push button is matched with the dead block, which realizes the three tasks of opening, pausing and locking the reel. State, easy to use, convenient to operate, and high braking reliability. Description of the drawings

Figure i is a schematic diagram of the internal structure of the pet tractor of the present invention;

Figure 2 is a schematic diagram of the structure of the wire wheel locking mechanism of the present invention;

Figure 3 is an exploded schematic diagram of the pressing member and the push button of the present invention;

Figure 4 is a bottom view of the push button of the present invention.

Description of reference signs:

Spool 1, tooth 11, insertion space 111, locking member 2, resisting body 21, card body 22, elastic member 3, pressing member 4, accommodating groove 41, blocking protrusion 42, sliding groove 43, positioning block 44 , Push button 5, toggle block 51, Rear derailleur 511, anti-slip convex point 5111, forward push portion 512, anti-slip convex block 5121, positioning groove 513, locking hook 52, sliding block 53, anti-falling strip 531, tractor housing 6, locking block 61, The abutment wall 62, the first cylindrical pin 7, and the second cylindrical pin 8. detailed description

In order to make the objectives, technical solutions and technical effects of the present invention clearer and clearer, the present invention will be further described below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

1 and 2, a reel locking mechanism of a pet tractor includes: a locking member 2 that is engaged with the reel 1 so as to urge the reel 1 to stop rotating; and the locking member 2 elastically abuts thereby Prompt the retaining member 2 to leave the elastic member 3 of the reel 1; the pressing member 4 that is opposed to the retaining member 2 and is used to push the retaining member 2 to rotate; the push button 5 provided on the sliding member 4 is slid against the push button 5 Thereby, the locking block 61 that promotes the locking of the reel 1; the locking member 2 and the elastic member 3 are hinged to the side wall of the tractor housing 6 through a first cylindrical pin 7, and the front end of the pressing member 4 passes A second cylindrical pin 8 is hinged to the side wall of the tractor housing 6, the locking block 61 is fixed to the side wall of the tractor housing 6, and the upper part of the push button 5 protrudes outward. There is a toggle block 51, the lower part of the push button 5 is provided with a locking hook 52 that matches the deadlocking block 61; pressing the push button 5 and the pressing member 4, and then pushing the locking member 2 is engaged with the wire reel 1 so as to prompt the reel 1 to stop rotating; the toggle block 51 on the push button 5 is moved backward, and then the locking hook 52 and the lock The dead block 61 abuts to cause the wire wheel 1 to be locked. Further, the upper part of the locking member 2 is bent to provide a resisting body 21 against the pressing member 4, and the lower part of the locking member 2 is provided with a tooth 11 on the wire wheel 1配的卡体22。 With the card body 22.

Further, the lower portion of the pressing member 4 is provided with a receiving groove 41 for receiving the resisting body 21, and the rear end of the receiving groove 41 is provided with a blocking protrusion 42.

The locking member 2 is hinged to the side wall of the tractor housing 6 through the first cylindrical pin 7. At the same time, the resisting body 21 on the upper part of the locking member 2 is accommodated in the pressing member 4 In the accommodating groove 41 at the lower part, at the same time, the blocking protrusion 42 is fixed at the end of the accommodating groove 41 to limit the front and back movement of the resisting body 21, and prevent the locking member 2 from rotating During the process, the resisting body 21 falls off from the accommodating groove 41, which ensures the continuity of the movement and the reset movement of the locking member 2.

In addition, when the pressing member 4 is pressed, the pressing member 4 pushes the locking member 2 to rotate on the first cylindrical pin 7, and then the lower part of the locking member 2 is inserted into the wire wheel 1 , The card body 22 on the locking member 2 is engaged with the teeth 11 on the wire wheel 1, thereby braking the wire wheel 1 and preventing the wire wheel 1 from continuing to rotate. Wherein, the teeth 11 on the wire wheel 1 are arranged in an annular array, and an insertion space 111 is provided between every two adjacent teeth 11, and the distance of the insertion space 111 is the width of the card body 22 It is beneficial to insert the lower part of the locking member 2 into the wire wheel 1, which improves the success rate of braking, and also prevents the lower part of the locking member 2 from interacting with the teeth 11 on the wire wheel 1. More collisions are generated and the service life of the parts is increased. Further, the side wall of the tractor housing 6 is located on one side of the first cylindrical pin 7 with an abutting wall 62, the elastic member 3 is sleeved on the first cylindrical pin 7, and the elastic One end of the member 3 abuts against the abutting wall 62, and the other end abuts against the inner wall of the locking member 2.

During normal traction, the elastic member 3 is in an open state, one end of the elastic member 3 abuts the abutting wall 62, and the other end abuts the inner wall of the locking member 2, so that the card The lower part of the stopper 2 is far away from the wire wheel 1, that is, the wire wheel 1 maintains a rotating form.

When braking, external force pushes the pressing member 4 and the locking member 2, and the locking member 2 is engaged with the wire reel 1 to cause the wire reel 1 to stop rotating. At the same time, the locking The stop member 2 squeezes the elastic member 3 to compress the elastic member 3 to generate elastic potential energy; after losing the external force, the elastic member 3 releases the elastic potential energy, and then pushes the locking member 2 and the pressing member 4, Keep the lower part of the locking member 2 away from the wire wheel 1, that is, the wire wheel 1 maintains a rotating form.

3, a sliding block 53 is provided in the middle of the push button 5, the pressing member 4 is provided with a sliding groove 43 for the sliding block 53 to slide back and forth, and the sliding block 53 is provided to prevent the push button 5 The anti-falling strip 531 detached from the chute 43.

In the present invention, the push button 5 and the pressing member 4 are integrated by the slider 53 and the sliding groove 43, and the anti-falling strip 531 is added, which has good working stability and smooth operation. When the push button 5 and the pressing member 4 are in the initial position, the wire wheel 1 maintains a rotating form, presses the push button 5 and the pressing member 4, and then pushes the locking member 2 and The wire reel 1 is engaged so as to promote the reel

1Stop turning. When the locking member 2 descends into place, the push button 5 is moved backward, and the slider 53 Sliding backward in the sliding groove 43 makes the deadlocking hook 52 on the push button 5 abut against the deadlocking block 61 to promote the locking of the wire wheel 1. Due to the above-mentioned structural design, the push button 5 is matched with the pressing piece 4, the pressing piece 4 is matched with the locking piece 2, and the push button 5 is matched with the locking block 61 In cooperation, three working states of opening, suspending and locking the reel 1 are realized, which is convenient to use, convenient to operate, and has high braking reliability.

The toggle block 51 cooperates with the deadlocking hook 52 at the lower part and the deadlocking block 61 to open and lock the wire wheel 1. Preferably, the shift block 51 is provided with a rear shift portion 511 for backward shifting and a forward push portion 512 for forward push, and a plurality of anti-slip protrusions are evenly arranged on the rear shift portion 511. At point 5111, a non-slip bump 5121 protrudes outward from the forward pushing portion 512.

When the wire reel 1 is locked, the rear shifting portion 511 is moved backward, so that the deadlocking hook 52 abuts the deadlocking block 61 to cause the wire reel 1 to be locked. The bump 5111 effectively increases the friction, which is beneficial to the operation of the toggle.

When the wire reel 1 is opened, the forward pushing portion 512 is pushed forward, so that the deadlocking hook 52 is separated from the deadlocking block 61 so as to promote the reel 1 to maintain a rotating form. The bump 5121 effectively increases the friction, which is conducive to the pushing operation.

3 and 4, the end of the pressing member 4 is protrudingly provided with a positioning block 44, and the end of the toggle block 51 is provided with a positioning groove 513 matching the positioning block 44. After the wire reel 1 is locked, the deadlocking hook 52 abuts against the deadlocking block 61, and at the same time, the positioning groove 513 on the toggle block 51 The fixing with the positioning block 44 on the pressing member 4 enhances the safety of the wire wheel 1 after being locked, and prevents the deadlocking hook 52 from falling off the deadlocking block 61.

The working principle of the present invention is:

When the rotation of the wire wheel 1 needs to be suspended: the user applies an external force to the push button 5 and the pressing member 4, and the pressing member 4 presses the locking member 2, so that the locking member 2 is smooth When the hour hand rotates around the first cylindrical pin 7, the elastic member 3 is compressed, so that the lower part of the locking member 2 is inserted into the wire wheel 1, and the card body 22 on the locking member 2 is The teeth 11 on the wire wheel 1 are engaged, so that the wire wheel 1 is braked.

When the reel 1 needs to be locked: on the basis of completing the pause step, the user applies a backward external force to the toggle block 51, and the rear toggle portion 511 is moved backward to make the locking hook 52 abuts against the deadlocking block 61 to promote the locking of the wire reel 1. At the same time, the positioning groove 513 on the toggle block 51 is fixed to the positioning block 44 on the pressing member 4, and it is used at this time There is no need to continuously apply external force to the push button 5 and the pressing member 4, and at the same time, the normal operation of the pet tractor can be ensured.

When the rotation of the wire wheel 1 needs to be turned on: the user applies a forward external force to the toggle block 51, and by pushing the forward push portion 512 forward, the deadlocking hook 52 and the deadlocking block 61 is separated, the user no longer applies external force, the elastic member 3 releases elastic potential energy, and then pushes the locking member 2, the pressing member 4 and the push button 5, so that the lower part of the locking member 2 Keep away from the wire wheel 1, that is, the wire wheel 1 remains in a rotating form. The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architectural form can be flexible and changeable, and series products can be derived. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the present invention as determined by the submitted claims.

Claims

1. A reel locking mechanism of a pet tractor, including:

The locking member that is engaged with the wire wheel to cause the wire wheel to stop rotating;

The elastic member that elastically abuts against the locking member to urge the locking member to leave the wire wheel;

A pressing member that is against the locking member and used to push the locking member to rotate;

Slide the push button provided on the pressing member;

The locking block that is opposed to the push button to cause the reel to lock;

It is characterized in that: the locking member and the elastic member are hinged to the side wall of the tractor housing through a first cylindrical pin, and the front end of the pressing member is hinged to the tractor housing through a second cylindrical pin The locking block is fixed on the side wall of the tractor housing, the upper part of the push button is protruded with a toggle block, and the lower part of the push button is provided with the locking block. A locking hook that matches the block; pressing the push button and the pressing member, and then pushing the locking member to engage with the wire wheel so as to prompt the wire wheel to stop rotating; dial the pusher backward The toggle block on the button then drives the deadlocking hook to abut against the deadlocking block to promote the locking of the wire wheel.

2. The reel locking mechanism of the pet tractor according to claim 1, characterized in that: the upper part of the locking member is bent with a resisting body that abuts against the pressing member, and the locking member The lower part is provided with a card body that is engaged with the teeth on the wire wheel.

3. The reel locking mechanism of the pet tractor according to claim 2, characterized in that: the lower part of the pressing member is provided with an accommodation groove for accommodating the resisting body, and a tail of the accommodation groove The end is provided with a blocking protrusion to prevent the resisting body from falling off.

4. The reel locking mechanism of the pet tractor according to claim 1, wherein: the side wall of the tractor housing is provided with an abutment wall on one side of the first cylindrical pin, and An elastic piece is sleeved on the first cylindrical pin, and one end of the elastic piece abuts against the abutting wall, and the other end abuts against the inner wall of the locking piece.

5. The reel locking mechanism of the pet tractor according to claim 1, wherein: a sliding block is provided in the middle of the push button, and the pressing member is provided with a sliding groove for the sliding block to slide back and forth , The sliding block is provided with an anti-drop strip which prevents the push button from falling off the sliding groove.

6. The wire wheel locking mechanism of the pet tractor according to claim 1, wherein: the shifting block is provided with a rear shifting portion for shifting backward and a forward pushing portion for pushing forward. A plurality of anti-slip bumps are uniformly arranged on the rear shifting portion, and anti-slip bumps protrude outward on the front push portion.

7. The reel locking mechanism of the pet tractor according to claim 1, characterized in that: the end of the pressing member is protrudingly provided with a positioning block, and the end of the toggle block is provided with the positioning block Matching positioning groove.