A length-restricted anti-explosion dog-pulling device structure

Abstract

The utility model provides a kind of length-restricted anti-explosion rush dog puller structure, belong to dog puller technical field.The length-restricted anti-explosion rush dog puller structure includes upper cover, lower cover, buffer assembly and winding disc group.The upper cover with the lower cover is installed together by screw, the upper cover and the lower cover are clamped with press switch, the buffer spiral spring is clamped in the notch slot and the rotating seat, the seat cover is clamped in the rotating seat;The winding disc group includes winding disc and end cover, and the winding disc sleeve is connected on the center column;The fling piece assembly includes fling piece, screw and torsion spring, and the torsion spring is clamped on one side of the winding disc and the jack, and the screw is threadedly connected on the screw column.The utility model can produce buffering effect and make braid slowly output in the process of using, so as to greatly reduce the possibility that pet explosion rush will bring to cause harm, and use can be more safe and convenient.

Description

Technical Field

[0001] This utility model relates to the field of dog leash technology, and more specifically, to a length-limited explosion-proof dog leash structure. Background Technology

[0002] A dog leash is a tool used to lead and control dogs. Its core function is to restrict the dog's activity range in scenarios such as walking the dog or going out, while ensuring the safety of the dog and others. It also makes it easier for owners to manage their dogs and is one of the essential items for daily dog ​​ownership.

[0003] Currently, when dogs are stimulated by external factors, they may suddenly lunge forward. This causes the leash to extend rapidly, resulting in a sudden lunge effect. This can easily pull the dog walker down and cause injury. Therefore, it is necessary to propose a leash structure with a limited length to prevent sudden lunge and solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a limited-length anti-burst dog leash structure, which aims to improve the problem that when a dog is stimulated by external factors, it will suddenly burst forward, causing the leash to be pulled out rapidly, resulting in a burst effect. This can easily cause the dog walker to fall over suddenly, causing injury.

[0005] This utility model is implemented as follows: This utility model provides a structure for a length-limited explosion-proof dog leash, including an upper cover, a lower cover, a buffer assembly, and a reel assembly.

[0006] The upper cover and the lower cover are mounted together with screws. A push-button switch and an outlet block are snapped onto the upper and lower covers. A central post is fixed to one side of the upper cover, and a notch is formed on the central post. The buffer assembly includes a rotating seat, a buffer spring, and a seat cover. The rotating seat is sleeved on the central post, the buffer spring is snapped onto the notch and the rotating seat, and the seat cover is snapped onto the rotating seat. The take-up reel assembly includes a take-up reel and an end cap. The take-up reel is sleeved on the central post, and a winding material is wound onto the take-up reel. The webbing has one end extending to the outside through the exit block. A screw post is fixed to one side of the take-up reel, and a swivel assembly is mounted on the screw post. A rotating spring is installed between the other side of the take-up reel and the notch. The end cap is snapped onto the other side of the take-up reel. The swivel assembly includes a swivel, a screw, and a torsion spring. A second through hole and an insertion hole are formed on the swivel. The torsion spring is sleeved on the screw post. The second through hole is sleeved on the screw post. The torsion spring is snapped onto one side of the take-up reel and the insertion hole. The screw is threaded onto the screw post.

[0007] In one embodiment of the present invention, a first through hole is formed on the rotating seat, the first through hole is sleeved on the central column, a first slot is formed on one side of the rotating seat, and a locking block is formed circumferentially on the surface of the rotating seat.

[0008] In one embodiment of the present invention, the buffer spring has a first bent portion and a second bent portion formed at both ends. The first bent portion is engaged with the notch groove, and the second bent portion is engaged with the first groove.

[0009] In one embodiment of the present invention, a second slot matching the card block is formed circumferentially on one side of the seat cover, and a protrusion is formed circumferentially on the other side of the seat cover, and the second slot is engaged with the card block.

[0010] In one embodiment of the present invention, one end of the torsion spring is formed with a support arm, and the other end of the torsion spring is formed with a bent portion, which is engaged in the insertion hole.

[0011] In one embodiment of this utility model, a first stop protrusion and a second stop protrusion are formed on one side of the winding reel. The support arm is fitted with the first stop protrusion, and the sling is fitted with the second stop protrusion. A third through hole matching the central column is formed inside the winding reel, and the third through hole is sleeved on the central column. A groove matching the rotating spring is formed on the other side of the winding reel. A second slot is formed on the inner surface of the groove. A positioning protrusion matching the end cap is formed circumferentially on the inner surface of the groove, and the end cap is engaged with the positioning protrusion.

[0012] In one embodiment of the present invention, the two ends of the rotating spring are formed with a first curved portion and a second curved portion, the first curved portion is engaged with the second slot, and the second curved portion is engaged with the notch.

[0013] The beneficial effects of this utility model are as follows: The novel explosion-proof dog leash structure with a limited length, obtained through the above design, allows the webbing to be pulled out and retracted normally during use, under the action of the rotating spring. The slinger, under the action of the torsion spring, will not rotate and be thrown outwards, and the rotating seat will not rotate. When the pet charges out rapidly, the webbing drives the winding reel to rotate quickly. Under the action of centrifugal force, the slinger rotates and is thrown out, colliding with the first stop protrusion and impacting the protrusion on the seat cover, thereby driving the entire rotating seat to rotate. During the rotation of the rotating seat, the buffer spring continuously contracts to generate buffering force. Because the buffer spring is thicker and shorter than the rotating spring, this… This design creates greater resistance to the pulling of the webbing, thus achieving anti-burst efficiency. When the buffer spring tightens inward and completely wraps around the central column, the rotating seat and take-up reel cannot rotate, thereby limiting the buffer length. When the pet's burst stops, and the outward pulling force of the webbing ends, the flap detaches from the protrusion on the seat cover. Under the elastic action of the torsion spring, the flap returns to its original position and engages with the second-position protrusion. The flap then disengages from the rotating seat. Simultaneously, the rotating seat and seat cover reverse under the elastic tension of the buffer spring, returning to their initial state. This creates a buffering effect during use, allowing the webbing to output slowly, which greatly reduces the possibility of a pet bursting and causing injury to a person, making it safer and more convenient to use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is an exploded structural diagram of the explosion-proof dog leash with limited length provided by an embodiment of the present invention; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 A schematic diagram of the rotating seat mounting structure of the explosion-proof dog leash with limited length provided for an embodiment of this utility model; Figure 4 A schematic diagram of the torsion spring mounting structure of the explosion-proof dog leash with limited length provided for an embodiment of this utility model; Figure 5 A schematic diagram of the winding reel structure of the explosion-proof dog leash with limited length provided for an embodiment of this utility model; Figure 6A schematic diagram of the rotating spring mounting structure of the explosion-proof dog leash with limited length provided for the embodiments of this utility model.

[0016] In the diagram: 100 - Top cover; 110 - Center post; 111 - Notch; 200 - Bottom cover; 300 - Buffer assembly; 310 - Rotating seat; 311 - First through hole; 312 - First slot; 313 - Locking block; 320 - Buffer spring; 321 - First bend; 322 - Second bend; 330 - Seat cover; 331 - Second slot; 332 - Protrusion; 400 - Sling assembly; 410 - Sling; 411 - Second through hole; 412 - Insertion hole; 420 - Screw ; 430-Torsion spring; 431-Support arm; 432-Bending section; 500-Rewinding reel assembly; 510-Rewinding reel; 511-Screw post; 512-First stop protrusion; 513-Second stop protrusion; 514-Third through hole; 515-Groove; 516-Second slot; 517-Positioning protrusion; 520-Rotating spring; 521-First bending section; 522-Second bending section; 530-End cap; 540-Webbing; 600-Push-button switch; 700-Exit block. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example

[0018] Please see Figures 1-6 This utility model provides a technical solution: a length-limiting explosion-proof dog leash structure, including an upper cover 100, a lower cover 200, a buffer assembly 300, and a reel assembly 500.

[0019] Please see Figure 1 The upper cover 100 and the lower cover 200 are installed together by screws. A push switch 600 is snapped onto the upper cover 100 and the lower cover 200. An outlet block 700 is snapped onto the upper cover 100 and the lower cover 200. A central post 110 is fixed on one side of the upper cover 100. A notch 111 is formed on the central post 110.

[0020] Please see Figure 1 and Figure 3The buffer assembly 300 includes a rotating seat 310, a buffer spring 320, and a seat cover 330. The rotating seat 310 is sleeved on the central post 110, the buffer spring 320 is snapped into the notch 111 and the rotating seat 310, and the seat cover 330 is snapped into the rotating seat 310.

[0021] A first through hole 311 is formed on the rotating base 310, which is fitted onto the central post 110. A first retaining groove 312 is formed on one side of the rotating base 310, and a retaining block 313 is formed circumferentially on the surface of the rotating base 310. A first bent portion 321 and a second bent portion 322 are formed at both ends of the buffer spring 320. The first bent portion 321 is engaged with the notch 111, and the second bent portion 322 is engaged with the first retaining groove 312. A second retaining groove 331 matching the retaining block 313 is formed circumferentially on one side of the base cover 330, and a protrusion 332 is formed circumferentially on the other side of the base cover 330. The second retaining groove 331 is engaged with the retaining block 313. Here, the thickness of the buffer spring 320 is greater than that of the rotating spring 520, and the length of the buffer spring 320 is shorter than that of the rotating spring 520. When the rotating seat 310 rotates, it generates greater resistance to the pulling out of the webbing 540, thereby producing an anti-burst effect.

[0022] Please see Figure 1 and Figures 4-6 The take-up reel assembly 500 includes a take-up reel 510 and an end cap 530. The take-up reel 510 is sleeved on the center post 110. A webbing 540 is wound on the take-up reel 510. One end of the webbing 540 passes through the exit block 700 and extends to the outside. A screw post 511 is fixed on one side of the take-up reel 510. A spool assembly 400 is installed on the screw post 511. A rotating spring 520 is installed between the other side of the take-up reel 510 and the notch 111. The end cap 530 is snapped onto the other side of the take-up reel 510.

[0023] One side of the take-up reel 510 has a first stop protrusion 512 and a second stop protrusion 513. The support arm 431 fits against the first stop protrusion 512, and the swivel 410 fits against the second stop protrusion 513. The interior of the take-up reel 510 has a third through hole 514 that matches the center post 110. The third through hole 514 is fitted onto the center post 110. The other side of the take-up reel 510 has a groove 515 that matches the rotating spring 520. The inner surface of the groove 515 has a second retaining groove 516. The inner surface of the groove 515 has a circumferentially formed positioning protrusion 517 that matches the end cap 530. The end cap 530 is engaged with the positioning protrusion 517. The two ends of the rotating spring 520 have a first bent portion 521 and a second bent portion 522. The first bent portion 521 is engaged with the second retaining groove 516, and the second bent portion 522 is engaged with the notch 111.

[0024] Please see Figure 1, Figure 2 , Figure 4 and Figure 5 The spool assembly 400 includes a spool 410, a screw 420, and a torsion spring 430. The spool 410 has a second through hole 411 and an insertion hole 412. The torsion spring 430 is sleeved on the screw post 511, and the second through hole 411 is sleeved on the screw post 511. The torsion spring 430 is snapped into one side of the take-up reel 510 and the insertion hole 412. The screw 420 is threaded onto the screw post 511. One end of the torsion spring 430 has a support arm 431, and the other end of the torsion spring 430 has a bent portion 432, which is snapped into the insertion hole 412.

[0025] Specifically, the working principle of this explosion-proof dog leash structure with limited length is as follows: During use, the webbing 540 can be pulled out and retracted normally under the action of the rotating spring 520. The flapper 410 will not rotate and be thrown outward under the action of the torsion spring 430, and the rotating seat 310 will not rotate. When the pet rushes out quickly, the webbing 540 drives the winding reel 510 to rotate rapidly. Under the action of centrifugal force, the flapper 410 rotates and is thrown out, colliding with the first stop protrusion 512 and impacting the protrusion 332 on the seat cover 330, thereby driving the entire rotating seat 310 to rotate. During the rotation of the rotating seat 310, the buffer spring 320 continuously contracts to generate buffering force. Since the buffer spring 320 is thicker and shorter than the rotating spring 520, this reduces the tension on the webbing 540. The increased resistance creates a greater anti-burst efficiency. When the buffer spring 320 is fully wrapped around the central column 110, the rotating seat 310 and the winding reel 510 cannot rotate, thus limiting the buffer length. When the pet's burst stops, the outward pulling force of the webbing 540 also ends. The flap 410 disengages from the protrusion 332 on the seat cover 330. Under the elastic action of the torsion spring 430, the flap 410 resets and engages with the second position protrusion 513. The flap 410 disengages from the rotating seat 310. At the same time, the rotating seat 310 and the seat cover 330 reverse under the elastic tension of the buffer spring 320, returning to their initial state. This creates a buffering effect during use, allowing the webbing 540 to output slowly, which greatly reduces the possibility of the pet bursting and causing injury to the person, making it safer and more convenient to use.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A length-limited explosion-proof dog leash structure, comprising an upper cover (100), a lower cover (200), a buffer assembly (300), and a reel assembly (500), characterized in that, The upper cover (100) and the lower cover (200) are installed together by screws. A push switch (600) is snapped onto the upper cover (100) and the lower cover (200). An outlet block (700) is snapped onto the upper cover (100) and the lower cover (200). A central post (110) is fixed to one side of the upper cover (100), and a notch (111) is formed on the central post (110). The buffer assembly (300) includes a rotating seat (310), a buffer spring (320), and a seat cover (330). The rotating seat (310) is sleeved on the central post (110), the buffer spring (320) is snapped into the notch (111) and the rotating seat (310), and the seat cover (330) is snapped into the rotating seat (310). The take-up reel assembly (500) includes a take-up reel (510) and an end cap (530). The take-up reel (510) is sleeved on the center post (110). A webbing (540) is wound on the take-up reel (510). One end of the webbing (540) extends to the outside through the exit block (700). A screw post (511) is fixed on one side of the take-up reel (510). A swivel assembly (400) is installed on the screw post (511). A rotating spring (520) is installed between the other side of the take-up reel (510) and the notch (111). The end cap (530) is snapped onto the other side of the take-up reel (510). The spool assembly (400) includes a spool (410), a screw (420), and a torsion spring (430). The spool (410) has a second through hole (411) and an insertion hole (412). The torsion spring (430) is sleeved on the screw post (511). The second through hole (411) is sleeved on the screw post (511). The torsion spring (430) is snapped onto one side of the take-up reel (510) and the insertion hole (412). The screw (420) is threaded onto the screw post (511).

2. The explosion-proof dog leash structure with limited length according to claim 1, characterized in that, A first through hole (311) is formed on the rotating seat (310), the first through hole (311) is sleeved on the central column (110), a first slot (312) is formed on one side of the rotating seat (310), and a locking block (313) is formed circumferentially on the surface of the rotating seat (310).

3. The explosion-proof dog leash structure with limited length according to claim 2, characterized in that, The buffer spring (320) has a first bent portion (321) and a second bent portion (322) at both ends. The first bent portion (321) is engaged in the notch (111), and the second bent portion (322) is engaged in the first slot (312).

4. The explosion-proof dog leash structure with limited length according to claim 3, characterized in that, The seat cover (330) has a second slot (331) circumferentially formed on one side that matches the locking block (313), and a protrusion (332) circumferentially formed on the other side of the seat cover (330). The second slot (331) is engaged with the locking block (313).

5. The explosion-proof dog leash structure with limited length according to claim 1, characterized in that, One end of the torsion spring (430) has a support arm (431), and the other end of the torsion spring (430) has a bent portion (432), which is engaged in the insertion hole (412).

6. The explosion-proof dog leash structure with limited length according to claim 5, characterized in that, The take-up reel (510) has a first stop protrusion (512) and a second stop protrusion (513) on one side. The support arm (431) fits against the first stop protrusion (512), and the sling (410) fits against the second stop protrusion (513). The interior of the take-up reel (510) has a third through hole (514) that matches the center post (110). The third through hole (514) is sleeved on the center post (110). The other side of the take-up reel (510) has a groove (515) that matches the rotating spring (520). The inner surface of the groove (515) has a second slot (516). The inner surface of the groove (515) has a positioning protrusion (517) that matches the end cap (530) in a circumferential direction. The end cap (530) is engaged with the positioning protrusion (517).

7. The explosion-proof dog leash structure with limited length according to claim 6, characterized in that, The rotating spring (520) has a first curved portion (521) and a second curved portion (522) formed at both ends. The first curved portion (521) is engaged in the second slot (516), and the second curved portion (522) is engaged in the notch (111).

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