Pet tractor and chest and back quick-release connecting device
With a dual structure of magnetic guidance and mechanical locking, the linkage buckle and locking spring enable quick connection and disconnection of the pet leash and harness, solving the problems of cumbersome connection, inconvenient disassembly and poor leash flexibility in the existing technology, improving efficiency and safety, and adapting to a variety of scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN HONGCHENGFEI MOLDING CO LTD
- Filing Date
- 2026-02-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing pet leashes and harnesses are cumbersome to connect and disassemble, have poor traction flexibility, are not adaptable to different scenarios, are inconvenient to store, lack lighting functions, and pose safety hazards.
It adopts a dual structure of magnetic guidance and mechanical locking. The linkage buckle and locking spring enable quick connection and disassembly. The puller and the base can rotate relative to each other. It is equipped with a retractable pull rope and a lighting module, and supports multi-scene adaptation.
It enables quick connection and disconnection, improving efficiency and safety, solving the problems of tangled and pulled tow ropes, adapting to various scenarios, and enhancing the user experience.
Smart Images

Figure CN121926147A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pet supplies technology, specifically to a pet leash and quick-release harness connection device for use with pets. Background Technology
[0002] With the increasing demands of pet ownership, harnesses and leashes have become essential tools for daily pet walks. Currently, products on the market are mainly divided into two categories: one is a separate harness and leash, which requires additional connection and is cumbersome to operate; the other is a few integrated products that combine the leash with the harness, but these generally suffer from problems such as inconvenient connection and disassembly, limited pet turning ability when on a leash, and inability to flexibly switch between leash and off-leash states, resulting in a poor user experience.
[0003] The core pain points of existing products are as follows: Low connection efficiency: Individual products require manual connection of the leash hook to the harness loop, which is cumbersome, especially when the pet is restless; integrated products are mostly fixed connections that cannot be quickly separated, requiring the entire harness to be disassembled for off-leash activities, which is not practical; Poor leash flexibility: Once the leash and harness are fixed, they cannot rotate relative to each other, and the leash is easy to get tangled or pulled when the pet turns or runs, which not only restricts the pet's movement but may also cause the pet to trip; Weak scene adaptability: It is not possible to quickly switch between "leash control" and "off-leash free movement" modes. In parks, grassy areas, and other places where off-leash activities are allowed, users need to store the leash separately, which is not enough to free up their hands; Insufficient storage and safety: Traditional leashes have a fixed length, making them inconvenient to store; When walking pets at night, there is a lack of marking or lighting functions, which increases the risk of collisions with pedestrians and vehicles. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a pet leash and a quick-release connection device for the chest harness, which has the advantages of quick connection and release, flexible leash, and adaptability to multiple scenarios.
[0005] The technical solution adopted in this invention is as follows: a pet leash and a quick-release connection device for a chest and back harness, including a leash and a base; the leash is provided with a retractable leash, and the bottom of the leash is provided with a locking groove, the inner peripheral wall of the locking groove being concave to form a locking opening; the base is provided with a pair of linkage latches, the linkage latches are provided with a latch part passing through the upper end of the base and arranged along the edge of the locking groove, the base is provided with a locking spring supporting the linkage latches along the length direction of the linkage latches, a trigger switch is provided between the two linkage latches by a trigger spring, the end of the linkage latch is engaged with the trigger switch, the trigger switch is provided with a trigger part passing through the upper end of the base, when the trigger part abuts against the top wall of the locking groove and descends, the linkage latches separate from the trigger switch, and the latch part is engaged into the locking opening under the action of the locking spring.
[0006] In this technical solution, the integrated chest and back harness traction device adopts a quick-release structure for easy user operation. When in use, the base is installed on the matching chest and back harness, and the traction device is used for traction. When traction, the traction device can be quickly fixed to the base. First, the bottom locking groove of the traction device is aligned with the upper end of the base. The trigger part of the trigger switch abuts against the top wall of the locking groove, causing the trigger switch to drop. This allows the locking part of the linkage lock to engage in the lock hole for locking. After the locking part engages with the lock hole, the traction seat can also rotate relative to the base. When the traction rope is extended, it is convenient to traction. When the traction rope is completely retracted into the traction seat, there is no need to remove the traction seat, making it easy to adjust the pet's traction status.
[0007] Preferably, the bottom of the traction device is provided with a quick-connect ring, the base is provided with a magnetic attracting element that magnetically attracts the quick-connect ring, the upper end of the base is provided with a guide boss that is directly opposite the lock groove, and the locking part is located at the edge of the guide boss. The top wall of the lock groove is provided with an abutment protrusion that is directly opposite the trigger part. When the base and the quick-connect ring are magnetically attracted, the guide boss is inserted into the lock groove, and at the same time, the abutment protrusion abuts against the trigger part, causing the trigger switch to descend and synchronously trigger the locking part to engage in the lock.
[0008] Preferably, the end of the linkage latch away from the trigger switch is provided with a pressing part that passes through the outer periphery of the base. When the pressing part is pressed, the latch part separates from the lock.
[0009] Preferably, the base is provided with a sliding groove for slidingly installing the linkage lock, and a locking spring is provided on the bottom wall of the groove. One end of the locking spring abuts against the linkage lock, and the other end abuts against the fixed part at the bottom of the groove.
[0010] Preferably, the trigger switch has a snap-fit groove on one side corresponding to the two linkage latches, and the two linkage latches have a snap-fit part at the end near the trigger switch that is adapted to snap-fit groove. When the trigger part of the trigger switch abuts against the top wall of the lock groove and moves downward, the snap-fit part separates from the snap-fit groove, so that the latching part of the linkage latches snaps into the lock opening.
[0011] Preferably, a chest strap is detachably connected to the bottom of the base.
[0012] Preferably, the traction device is provided with a traction disc for winding the traction rope. One end of the traction rope wound on the traction disc passes through the traction device to form a traction end. The end face of the traction disc is provided with a locking tooth ring. A control button is slidably provided on the outside of the traction device. The control button is connected to a locking element. Sliding the control button can cause the locking element to abut against or separate from the locking tooth ring.
[0013] Preferably, the traction disc is provided with a torsion spring, and when the locking member is separated from the locking gear ring, the traction disc automatically winds the traction rope under the torsion of the torsion spring.
[0014] Preferably, the traction end of the traction rope is connected to a detachable traction handle.
[0015] Preferably, the surface of the traction device is provided with a lighting module, which is connected to a power module and a switch module located inside and on the surface of the traction device. The surface of the traction device is also provided with a charging interface connected to the power module.
[0016] The beneficial effects of this invention are as follows: This invention adopts a dual structure of magnetic guidance and mechanical locking. The linkage latch, combined with the locking spring, achieves mechanical locking, while the magnetic positioning provides double protection for connection stability, preventing accidental detachment when the pet pulls. The trigger switch-linked latch quickly engages and locks, requiring no complex operations during connection and allowing for one-handed separation during disassembly, significantly improving efficiency. After connecting the leash to the base, it can rotate relative to the pet. When the pet turns or runs, the leash rotates synchronously with the pet's movements, solving the problems of leash tangling and pulling, preventing the pet from tripping, and improving leash comfort. It also supports quick switching between leash and unleashed modes, satisfying the pet's need for free movement while allowing for timely control, adapting to various scenarios; thus, it has high practical value. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0018] Figure 1 This is a perspective view of the pet leash and quick-release connection device for the chest and back harness provided in an embodiment of the present invention.
[0019] Figure 2 This is a perspective view of the leash seat of the pet leash and quick-release connection device for the chest and back harness provided in an embodiment of the present invention.
[0020] Figure 3 This is a diagram showing the internal structure of the leash seat of the pet leash and quick-release connection device for the chest and back harness provided in an embodiment of the present invention.
[0021] Figure 4 This is a perspective view of the base of the pet leash and quick-release connection device for the chest harness provided in an embodiment of the present invention.
[0022] Figure 5 This is an assembly diagram of the linkage lock and base of the pet leash and quick-release connection device for the chest harness provided in this embodiment of the invention.
[0023] Figure 6 This is an assembly diagram of the linkage lock and trigger switch of the pet leash and chest harness quick-release connection device provided in the embodiments of the present invention.
[0024] Reference numerals in the attached drawings: traction device 100, locking groove 110, locking port 111, abutting protrusion 112, traction disc 120, locking tooth ring 130, control button 140, locking element 150, traction rope 160, traction handle 161, lighting module 170, switch module 180, quick-connect ring 190, base 200, guide boss 210, slide groove 220, linkage lock 300, lock part 310, pressing part 320, locking spring 330, snap-fit part 340, trigger switch 400, trigger part 410, trigger spring 420, snap-fit groove 430, chest strap 500. Detailed Implementation
[0025] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0026] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.
[0027] like Figures 1 to 6 As shown in the figure, a specific embodiment of the present invention provides a pet leash and a quick-release connection device for a chest harness, including a leash 100 and a base 200. The two parts work together to achieve quick connection and release, flexible leash, secure locking, and adaptability to multiple scenarios. Specifically, the leash 100 is equipped with a retractable leash 160 for leashing the pet, and the bottom of the leash 100 is provided with a locking groove 110, the inner peripheral wall of the locking groove 110 is recessed to form a locking opening 111. In this embodiment, the bottom of the base 200 is provided with a detachable chest harness 500, which can be fixed by sewing or buckles. The chest harness 500 adopts different specifications according to different pets. In order to achieve a quick and stable connection between the leash 100 and the base 200, the base 200 is provided with a pair of linkage locks 300. The linkage locks 300 are provided with a locking part 310 that passes through the upper end of the base 200 and is arranged along the edge of the locking groove 110. The base 200 is provided with a support linkage along the length direction of the linkage locks 300. The locking spring 330 of the latch 300 is provided between the linkage latches 300 and the trigger switch 400 is elastically supported by the trigger spring 420. The end of the linkage latch 300 is engaged with the trigger switch 400. The trigger switch 400 is provided with a trigger part 410 that passes through the upper end of the base 200. When the trigger part 410 abuts against the top wall of the lock groove 110 and descends, the linkage latch 300 separates from the trigger switch 400 and the latch part 310 is engaged into the lock opening 111 under the elastic force of the locking spring 330.
[0028] like Figures 1 to 6As shown, through the above settings, the integrated chest and back harness 100 provided in this embodiment can be quickly connected. When in use, the base 200 is installed on the matching chest and back harness 500, and the harness 100 is used for traction. When traction, the harness 100 can be quickly fixed on the base 200. When the user operates, first connect the bottom locking groove 110 of the harness 100 with the upper end of the base 200. The trigger part 410 of the trigger switch 400 abuts against the top wall of the locking groove 110, causing the trigger switch 400 to descend. In this way, the locking part 310 of the linkage lock 300 can be locked into the lock opening 111. After the locking part 310 and the lock opening 111 are engaged, the traction rope 160 in the harness 100 can be easily pulled when extended. The traction rope 160 can be completely retracted in the harness 100 without removing the harness 100 for hand handling. It is not only more portable but also convenient to adjust the pet's traction status.
[0029] like Figures 1 to 3 As shown, in order to further improve the convenience of connecting or disassembling the traction seat 100 and the base 200, this embodiment provides a quick-connect ring 190 at the bottom of the traction device 100, and a magnetic attractor that magnetically attracts the quick-connect ring 190 inside the base 200. The upper end of the base 200 is provided with a guide boss 210 that is directly opposite to the locking groove 110, and the locking part 310 is located at the edge of the guide boss 210. The top wall of the locking groove 110 is provided with an abutment protrusion 112 that is directly opposite to the trigger part 410. When the base 200 and the quick-connect ring 190 are magnetically attracted, the guide protrusion 210 rises and is inserted into the locking groove 110. At the same time, the abutment protrusion 112 abuts against the trigger part 410, causing the trigger switch 400 to descend and synchronously trigger the locking part 310 to be inserted into the locking groove 110. Meanwhile, the end of the linkage latch 300 away from the trigger switch 400 is provided with a pressing part 320 that passes through the outer periphery of the base 200. When the pressing part 320 is pressed, the latch part 310 separates from the lock opening 111.
[0030] like Figures 1 to 3As shown, when the quick-connect ring 110 at the bottom of the traction device 100 approaches the upper end of the base 200, under the guidance of the magnetic attraction and the guide boss 210, the trigger part 410 at the upper end of the trigger switch 400 abuts against the abutment protrusion 112 in the lock groove 110. The trigger switch 400 is pressed and moves inward into the base 200, while the locking part 310 of the linkage lock 300 is precisely engaged into the lock opening 111 to lock. The alignment of the guide boss 210 with the lock groove on the inner side of the quick-connect ring solves the possible misalignment problem of magnetic attraction and improves the reliability of the connection. At the same time, after locking, the traction device can also rotate relative to the base 200, allowing the pet to turn and move freely when traction, avoiding interference with the pet's movement. When the user needs to remove the puller 100 from the base 200 and no longer requires traction, the user presses the pressing part 320 of the linkage lock 300 on both sides of the base 200. The linkage lock 300 slides inward against the elastic force of the locking spring 330, and the locking part 310 disengages from the locking port 111. At the same time, the trigger switch 400 resets upward under the action of the trigger spring 420, and the puller 100 and the base 200 quickly separate under the reset thrust of the trigger switch 400, so that the puller 100 can be quickly removed from the base. In some embodiments, the magnetic suction structure can be omitted and manual docking can be used. After the corresponding magnetic suction component and quick-connect ring are removed, the base is docked by hand to achieve trigger locking. This simplifies the structure of the device and helps to reduce production costs.
[0031] like Figures 4 to 6 As shown, in this embodiment, the linkage lock 111 is locked or unlocked by sliding inward or outward. Therefore, the base 200 is provided with a sliding groove 220 for slidingly installing the linkage lock buckle 300. The locking spring 330 is provided on the bottom wall of the sliding groove 220. One end of the locking spring 330 abuts against the linkage lock buckle 300, and the other end abuts against the fixed part at the bottom of the sliding groove 220. In this way, when the linkage lock buckle 300 is pressed, it can move relatively close and lock into the lock 111. After release, the linkage lock buckle 300 is in an expanded state under the action of the locking spring 330 to ensure that the lock part 310 remains locked.
[0032] like Figures 4 to 6 As shown, in order to enable the linkage latches 300 to slide synchronously and lock when the trigger switch 400 moves downward, this embodiment provides a snap-fit groove 430 between the two ends of the trigger switch 400, and a snap-fit part 340 is provided at the end of each linkage latch 300 near the trigger switch 400. When the trigger switch 400 moves downward, the snap-fit part 340 separates from the snap-fit groove 430, and when the linkage latches 300 slide outward toward the base 200, the latch part 310 engages with the lock slot 111. This structure realizes the linkage process of "magnetic alignment → contact triggering → automatic locking" without additional operation, meeting the design requirements of quick disassembly and quick connection.
[0033] The above structure is used in the following scenarios;
[0034] Connection and Locking: Holding the traction device 100, align the quick-connect ring 190 with the guide boss 210 of the base 200. The magnetic component and the quick-connect ring 110 are magnetically aligned, and the guide boss 210 is engaged in the guide space. The quick-connect ring 110 presses down on the trigger part 410 of the trigger switch 400. The trigger switch 400 compresses the trigger spring 420 and moves inward into the base 200. The positioning groove 430 separates from the positioning protrusion 341 of the linkage lock 300. Under the pushing force of the locking spring 330, the linkage lock 300 slides outward from the base 200, and the lock part 310 engages with the locking slot 111 of the quick-connect ring 110, achieving mechanical locking. At this time, the traction device 100 can rotate freely relative to the base 200 to adapt to the pet's turning movements, solve the problem of the leash 160 getting tangled and pulled, prevent the pet from tripping, and improve the comfort of traction.
[0035] Disassembly and separation: Press the pressing part 320 of the linkage lock 300 on both sides of the base 200. The linkage lock 300 slides inward against the elastic force of the locking spring 330, and the locking part 310 disengages from the lock mouth 111 of the quick-connect ring 110. At the same time, the trigger switch 400 moves upward under the action of the trigger spring 420. The trigger part 410 pushes open the quick-connect ring 110, and the puller 100 and the base 200 are quickly separated under the action of magnetic separation force and the pushing force of the trigger switch 400.
[0036] Example 2
[0037] like Figures 1 to 3 As shown, this embodiment further optimizes the structure of the traction device 100. Specifically, the traction device 100 is provided with a traction disc 120 for winding the traction rope 160. One end of the traction rope 160 wound on the traction disc 120 passes through the traction device 100 to form a traction end. The end face of the traction disc 120 is provided with a locking tooth ring 130. A control button 140 is slidably provided on the outside of the traction device 100. The control button 140 is connected to a locking member 150. Sliding the control button 140 can cause the locking member 150 to abut or separate from the locking tooth ring 130. In this way, the leash 160 of the leash 100 can extend and retract to adjust its length. When adjusted to a suitable length, the leash disc 120 can be locked by the locking member 150. This adapts to different pet walking distance requirements. In this embodiment, a torsion spring is also provided on the leash disc 120. When the locking member 150 is separated from the locking tooth ring 130, the leash disc 120 automatically winds the leash 160 under the torsion of the torsion spring. Thus, when the locking member 150 is released from the locking tooth ring 130, the leash disc 120 rotates under the torsion of the torsion spring to achieve the purpose of automatically storing the leash 160. This not only makes storage convenient but also makes it easy to adjust the leash length of the leash 160.
[0038] With its automatic storage structure, this device can achieve the function of detaching and storing the leash. That is, when no leash is needed, the leash 100 is connected to the base 200, and the sliding control button 140 separates the locking member 150 from the locking tooth ring 130. The leash disc 120 automatically stores the leash 160 under the action of the torsion spring, so that the entire leash 100 is fixed on the pet's chest and back, temporarily freeing the user's hands.
[0039] In this embodiment, a detachable traction handle 161 is connected to the traction end of the traction rope 160. The traction handle 161 can be connected and disassembled through quick-release structures such as buckles.
[0040] In practical applications, to further facilitate nighttime towing, this embodiment includes a lighting module 170 on the surface of the towing device 100. The lighting module 170 is connected to a power module and a switch module 180 located inside and on the surface of the towing device 100. The surface of the towing device 100 also has a charging interface connected to the power module. The lighting module 170 can be controlled to turn on via the switch module 180 to provide illumination or marking guidance during nighttime towing. After prolonged use, it is charged via the charging interface, which uses a Type-C interface. The internal power module can be a lithium-ion battery.
[0041] Example 3
[0042] This embodiment provides the traction device and base described in Embodiment 2. In addition to the magnetic trigger locking and press unlocking methods used in Embodiment 1, other fixing and docking methods are also provided between the traction device and the base, including the use of snap fasteners, spiral buckles, Velcro fasteners, and snap fasteners. The above-mentioned fixing methods are simpler in structure, can achieve quick connection and fixing, and can reduce production costs.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A pet leash and a quick-release connection device for a chest harness, characterized in that; Includes a traction device (100) and a base (200); The traction device (100) is provided with a retractable traction rope (160), and the bottom of the traction device (100) is provided with a locking groove (110), and the inner peripheral wall of the locking groove (110) is recessed to form a locking opening (111). The base (200) is provided with a pair of linkage latches (300). The linkage latches (300) are provided with latch parts (310) that pass through the upper end of the base (200) and are arranged along the edge of the lock groove (110). The base (200) is provided with a locking spring (330) that supports the linkage latches (300) along the length direction of the linkage latches (300). Between the two linkage latches (300), there is a trigger switch (400) that is elastically supported by a trigger spring (420). The end of the linkage latches (300) is engaged with the trigger switch (400). The trigger switch (400) is provided with a trigger part (410) that passes through the upper end of the base (200). When the trigger part (410) abuts against the top wall of the lock groove (110) and descends, the linkage latches (300) separate from the trigger switch (400), and the latch part (310) is engaged into the lock opening (111) under the action of the locking spring (330).
2. The pet leash and quick-release connection device for the chest harness as described in claim 1, Its characteristics are: The bottom of the traction device (100) is provided with a quick-connect ring (190), and the base (200) is provided with a magnetic attracting element that magnetically attracts the quick-connect ring (190). The upper end of the base (200) is provided with a guide boss (210) that is directly opposite to the lock groove (110), and the locking part (310) is located at the edge of the guide boss (210). The top wall of the lock groove (110) is provided with an abutting protrusion (112) that is directly opposite to the trigger part (410). When the base (200) and the quick-connect ring (190) are magnetically attracted, the guide boss (210) is inserted into the lock groove (110), and at the same time, the abutting protrusion (112) abuts against the trigger part (410), causing the trigger switch (400) to descend and synchronously trigger the locking part (310) to be inserted into the lock opening (111).
3. The pet leash and harness quick-release connection device according to claim 1 or 2, Its characteristics are: The linkage latch (300) has a pressing part (320) at one end away from the trigger switch (400) that passes through the outer periphery of the base (200). When the pressing part (320) is pressed, the latch part (310) separates from the lock (111).
4. The pet leash and quick-release connection device with the chest harness as described in claim 2, Its characteristics are: The base (200) is provided with a sliding groove (220) for slidingly installing the linkage lock (300). The locking spring (330) is located on the bottom wall of the sliding groove (220). One end of the locking spring (330) abuts against the linkage lock (300), and the other end abuts against the fixing part at the bottom of the sliding groove (220).
5. The pet leash and quick-release connection device for the chest harness according to claim 2, characterized in that... ; The trigger switch (400) is provided with a snap-fit groove (430) on one side corresponding to the two linkage latches (300). The two linkage latches (300) are provided with a snap-fit part (340) at one end near the trigger switch (400) that is adapted to snap-fit groove (430). When the trigger part (410) of the trigger switch (400) abuts against the abutting protrusion (112) on the top wall of the lock groove (110) and moves downward, the snap-fit part (340) separates from the snap-fit groove (430), so that the latching part (310) of the linkage latch (300) is engaged in the lock opening (111).
6. The pet leash and quick-release connection device for the chest harness according to claim 1 or 2, characterized in that... ; The base (200) is detachably connected to a chest strap (500) at its bottom.
7. The pet leash and harness quick-release connection device according to claim 1 or 2, Its characteristics are: The traction device (100) is provided with a traction disc (120) for winding the traction rope (160). One end of the traction rope (160) wound on the traction disc (120) passes through the traction device (100) to form a traction end. The end face of the traction disc (120) is provided with a locking tooth ring (130). A control button (140) is slidably provided on the outside of the traction device (100). The control button (140) is connected to a locking member (150). Sliding the control button (140) can cause the locking member (150) to abut or separate from the locking tooth ring (130).
8. The pet leash and quick-release connection device for the chest harness according to claim 7, characterized in that... ; The traction disc (120) is equipped with a torsion spring. When the locking member (150) is separated from the locking tooth ring (130), the traction disc (120) automatically winds the traction rope (160) under the torsion of the torsion spring.
9. The pet leash and quick-release connection device for the chest harness according to claim 8, characterized in that; The traction end of the traction rope (160) is connected to a detachable traction handle (161).
10. The pet leash and quick-release connection device with the chest harness according to claim 1, Its characteristics are: The surface of the traction device (100) is provided with a light module (170), the light module (170) is connected to a power module and a switch module (180) located inside the traction device (100) and on the surface of the traction device (100), and the surface of the traction device (100) is also provided with a charging interface connected to the power module.