Pet leash safety buckle

Abstract

The utility model provides a kind of pet rope safety buckle, it is related to pet product field;Device includes: locking shell has opposite first end and second end, first end is equipped with the mouth for locking insert piece insertion;Second end is equipped with first connecting part;Locking shell's lateral wall is equipped with at least one pair of locking hole being oppositely arranged;Locking insert piece includes baffle and at least one pair of locking arm being arranged in the side of baffle;The radial dimension of baffle is greater than the radial dimension of mouth;A pair of locking arm is oppositely arranged and its opposite side is configured as the locking portion of outward bulge;In locking state, locking arm can pass through mouth and be contained in locking shell, and locking portion is limited in corresponding locking hole;Unlock actuator is sleeved in the outside of locking shell, and its inner wall is equipped with actuating structure;When unlocking actuator is moved by external extrusion, actuating structure can compress locking portion, make locking arm produce elastic deformation and inwardly fold, so that locking portion is withdrawn from locking hole, and unlocking is realized.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies, and more specifically, to a pet leash safety buckle. Background Technology

[0002] Currently, most common pet leash safety buckles use manually operated snap-on structures, such as push-button or rotary locks. These buckles work reliably in typical pet-walking scenarios, but pose significant safety hazards in certain unexpected situations, such as when taking a pet in an elevator. If the pet and owner are separated inside and outside the elevator the moment the doors close, the leash connecting them will taut. As the elevator ascends or descends, the leash will exert a huge and continuous pulling force on the safety buckle.

[0003] Traditional manual safety buckles cannot automatically disengage in this situation, which can easily lead to pets being hoisted up, strangled, or even more serious life-threatening situations.

[0004] Therefore, there is an urgent need in this field for a safety buckle that can automatically and quickly unlock under specific external force conditions to protect the life safety of pets. Utility Model Content

[0005] The purpose of this utility model is to provide a pet leash safety buckle that has a reasonable structure, high reliability, and can automatically unlock under specific external force.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A pet leash safety buckle includes:

[0008] A locking housing having a first end and a second end opposite to each other; the first end having a socket for inserting a locking plug; the second end having a first connecting part for connecting to a pet leash; and the side wall of the locking housing having at least a pair of oppositely arranged locking holes.

[0009] A locking insert includes a stop block and at least one pair of locking arms disposed on one side of the stop block; the other side of the stop block is used to connect to the pet leash, and the radial dimension of the stop block is larger than the radial dimension of the socket; the pair of locking arms are disposed opposite each other and their opposite sides are configured as outwardly protruding locking portions; in the locked state, the locking arms can pass through the socket and be accommodated in the locking housing, and the locking portions are confined in the corresponding locking holes;

[0010] An unlocking actuator is sleeved on the outside of the locking housing, and its inner wall is provided with an actuation structure. When the unlocking actuator is moved by external pressure, the actuation structure can compress the locking part, causing the locking arm to elastically deform and retract inward, thereby causing the locking part to exit from the locking hole and achieve unlocking.

[0011] Furthermore, in this invention, the actuation structure is a pair of actuation bosses formed on the opposing inner walls of the unlocking actuator.

[0012] Furthermore, in this utility model, the locking part is an arc-shaped protrusion or a guide slope protrusion, and is located at the end of the locking arm away from the stop block, and the locking part and the locking arm are integrally formed; a groove is formed between the locking part and the stop block; in the locked state, the insertion end sidewall of the locking housing is accommodated in the groove.

[0013] Furthermore, in this invention, the locking part is a wedge-shaped protrusion, and its guide slope gradually tapers from one end near the root of the locking arm toward its free end.

[0014] Furthermore, in this invention, a limiting structure is provided on the surface where the locking housing and the unlocking actuator are in contact, for restricting the free movement of the unlocking actuator relative to the locking housing in the non-unlocked state.

[0015] Furthermore, in this utility model, the limiting structure includes a protrusion disposed on the contact surface of one of the components, and a recess disposed on the contact surface of the other component that engages with the protrusion.

[0016] Furthermore, in this utility model, the limiting structure includes anti-slip textures provided on the outer wall of the locking housing.

[0017] Furthermore, in this invention, the stop block has a second connecting part for connecting to a pet leash on the side facing away from the locking arm.

[0018] Furthermore, in this utility model, the first connecting part and the second connecting part are respectively a ring structure, a hook structure, or a snap-fit ​​structure.

[0019] Furthermore, in this utility model, the locking housing is a regular polygonal cylindrical or cylindrical structure; the unlocking actuator is correspondingly sleeved on the outside of the locking housing and forms a sliding pair with it.

[0020] This utility model has at least the following advantages or beneficial effects:

[0021] This invention, by providing a locking housing with an insertion port, a locking hole, and a first connecting part, forms a stable base, providing a reliable insertion and locking space for the locking plug and enabling convenient connection to one end of the pet leash. By including a stop block, an elastic locking arm, and a locking part in the locking plug, with the stop block larger than the insertion port, the locking part can be self-locked during normal locking by utilizing the elastic deformation and return of the locking arm to engage with the locking hole, effectively preventing the pet leash from being accidentally pulled off during normal use and ensuring absolute reliability of the connection. Furthermore, by incorporating a release mechanism fitted onto the outer and inner walls of the locking housing, this invention provides a locking mechanism that engages with the locking part. The lock actuator can convert external pressure into mechanical force to drive the safety buckle to slide when it is accidentally squeezed by elevator doors closing, forcing the locking part to disengage from the locking hole. This achieves quick and automatic emergency unlocking without human intervention, fundamentally avoiding the risk of pet injury or death caused by pulling. By combining the locking housing, locking plug, and unlocking actuator into the above-mentioned linkage mechanism, it can integrate three major functions: one-button self-locking, stable connection under normal conditions, and automatic disengagement in an emergency. This perfectly solves the problem of the single function of traditional safety buckles in specific dangerous scenarios, achieving a qualitative leap in safety performance. Attached Figure Description

[0022] 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 on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A cross-sectional view of the overall structure of the pet leash safety buckle provided in the application embodiment;

[0024] Figure 2 A one-axis view of the locking housing provided in the embodiment of the application;

[0025] Figure 3 This is an isometric view of the locking housing provided in another direction according to the application embodiment;

[0026] Figure 4 A schematic diagram of the locking plug provided in the embodiment of the application;

[0027] Figure 5 A schematic diagram of the unlocking actuator provided in the application embodiment.

[0028] Reference numerals: 1. Locking housing; 11. Socket; 12. First connecting part; 13. Locking hole; 2. Locking insert; 21. Stop; 22. Locking arm; 221. Locking part; 23. Second connecting part; 3. Unlocking actuator; 31. Actuating boss. Detailed Implementation

[0029] 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, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] Example

[0032] Please refer to Figures 1-5 The figure shown is a schematic diagram of the structure of the pet leash safety buckle in an embodiment of this utility model;

[0033] This embodiment provides a pet leash safety buckle, including a locking housing 1, a locking insert 2, and an unlocking actuator 3. The locking housing 1 serves as a basic frame, having a first end and a second end. The first end has a slot 11 for inserting the locking insert 2; the second end has a first connecting portion 12 for connecting to one end of the pet leash. The side wall of the locking housing 1 has at least a pair of oppositely arranged locking holes 13 for mechanical interlocking; wherein the locking holes 13 extend to one end of the first connecting portion 12 to avoid the protruding actuation structure of the unlocking actuator 3 on its inner wall when fitted onto the locking housing 1.

[0034] The locking plug 2 is a key moving component that enables locking and unlocking. It includes a stop 21 and at least one pair of locking arms 22 disposed on one side of the stop 21. The other side of the stop 21 is used to connect the other end of the pet leash, and its radial dimension is designed to be larger than the size of the insertion port 11 of the locking housing 1, thereby providing a physical limit and preventing the entire locking plug 2 from being pulled out completely through the insertion port 11. The pair of locking arms 22 are arranged opposite each other, and have outwardly protruding locking portions 221 on their opposite outer sides. In the locked state, the locking arms 22 pass through the insertion port 11 and are accommodated in the locking housing 1 due to the elasticity of their own material. At this time, the locking portions 221 are precisely engaged with the corresponding locking holes 13, thereby firmly locking the locking plug 2 and the locking housing 1 together, and the pet leash is in a normal connected state.

[0035] The unlocking actuator 3 is the actuating component that triggers automatic unlocking; it is fitted onto the outside of the locking housing 1. Its inner wall has an actuating structure. When the safety buckle is accidentally squeezed (e.g., caught in an elevator door), the squeezing force is transmitted to the unlocking actuator 3, causing it to move relative to the locking housing 1. During this movement, the actuating structure on its inner wall presses against the locking part 221 protruding from the locking hole 13, forcing the elastic locking arm 22 to deform inward and retract, thereby completely disengaging the locking part 221 from the locking hole 13, achieving rapid automatic unlocking, disconnecting the pet leash, and ensuring the pet's safety.

[0036] In a preferred embodiment, the locking part 221 is preferably an arc-shaped protrusion (such as a hemispherical shape) or a guide bevel protrusion (such as a wedge shape), and the locking part 221 is integrally formed with the locking arm 22. The locking part 221 is disposed at the end of the locking arm 22 away from the stop 21, and forms a groove between it and the stop 21. This ensures that in the locked state, the side wall of the insertion end 11 of the locking housing 1 is precisely embedded in this groove, achieving dual optimization: firstly, it greatly limits the radial sway of the locking plug 2 in the locked state, improving the stability of the connection and the compactness of the overall structure; secondly, it provides a more precise fit and guidance between the locking part 221 and the locking hole 13, making the unlocking process smoother and the locking action more accurate.

[0037] In a preferred embodiment, the aforementioned actuation structure is preferably a pair of actuating bosses 31 formed on the opposing inner walls of the unlocking actuator 3. Each actuating boss 31 has a finite length in the axial direction of the unlocking actuator 3, and at least one end of each boss is spaced apart from the corresponding end edge of the unlocking actuator 3. By limiting the non-full length design of the bosses, a receiving space is formed inside one end of the unlocking actuator 3, which, after being fitted onto the outside of the locking housing 1, can cover the locking portion 221, making it more aesthetically pleasing.

[0038] It should be noted that the overall length of the unlocking actuator 3 is longer than the length of the locking housing 1, so that in the locked state, the end of the unlocking actuator 3 near the first connecting part 12 protrudes a certain length from the corresponding end of the locking housing 1, so that the unlocking actuator 3 has a better force effect.

[0039] Furthermore, when the locking part 221 adopts a wedge-shaped protrusion, its guide slope is set to gradually taper from one end near the root of the locking arm 22 toward its free end. This tapering slope design allows for a more optimized force component when the actuating structure acts on the slope during unlocking, thus enabling efficient inward retraction of the locking arm 22 with less external force, further improving the sensitivity and reliability of automatic unlocking.

[0040] In a preferred embodiment, since the unlocking actuator 3 is slidably fitted onto the outside of the locking housing 1, a limiting structure is provided on the surface where the locking housing 1 and the unlocking actuator 3 contact each other. This structure restricts the free movement of the unlocking actuator 3 relative to the locking housing 1 when the device is not unlocked. This structure effectively prevents the unlocking actuator 3 from accidentally sliding due to shaking, gravity, or slight friction during daily use, avoiding accidental locking and improving the product's stability and user experience.

[0041] A preferred embodiment of the limiting structure includes a protrusion, such as a spherical protrusion, on the contact surface of one component, and a recess, such as an arcuate groove, on the contact surface of the other component that engages with the protrusion. The engagement of the protrusion and the recess creates a small positioning resistance, requiring a certain axial force to overcome this resistance and allow the unlocking actuator 3 to slide, thereby achieving the positioning function.

[0042] Another alternative implementation is to use anti-slip textures on the outer wall of the locking housing 1 as the limiting structure. By increasing the coefficient of friction of the contact surfaces, relative movement can be restricted with a simpler structure and lower manufacturing costs.

[0043] As a preferred embodiment, the stop 21 has a second connecting part 23 specifically for connecting to a pet leash on the side facing away from the locking arm 22. By separating the connecting function, the structure of the stop 21 body can focus more on the limiting function, while the second connecting part 23 can be designed in different forms as needed, enhancing the modular design and the scalability of the product series.

[0044] In a preferred embodiment, the first connecting part 12 and the second connecting part 23 are respectively a ring structure, a hook structure, or a snap-fit ​​structure. This provides a variety of connection methods, allowing the safety buckle to flexibly adapt to various types of pet leash terminals on the market, making it highly versatile. In this embodiment, the first connecting part 12, as shown in the figure, is a rod-shaped structure located at the end of the locking housing 1, through which the pet leash is fitted; the second connecting part 23, as shown in the figure, is a U-shaped connecting rod, which can be connected to the pet leash and also facilitates the control of the locking plug 2 being inserted into the locking housing 1.

[0045] In a preferred embodiment, the locking housing 1 is a regular polygonal cylindrical structure (such as square or hexagonal) or a cylindrical structure; the unlocking actuator 3 is correspondingly sleeved on the outside of the locking housing 1, forming a sliding pair with it. By adopting a regular polygonal cylindrical structure, the unlocking actuator 3 can be prevented from rotating outside the housing, ensuring that it can only slide axially, so that the internal actuation structure is always aligned with the locking part 221, making the operation more reliable. The cylindrical structure is simpler to manufacture. The sliding pair formed by the two is the ideal kinematic fit relationship to realize its unlocking function.

[0046] The specific working principle of the safety buckle in this application is as follows:

[0047] During assembly and locking, the two locking arms 22 of the locking plug 2 are aligned with the insertion port 11 of the locking housing 1 and forcefully inserted. During insertion, the wedge-shaped locking portion 221 of the locking arm 22 is squeezed inward by the edge of the insertion port 11 and elastically bends until the locking portion 221 completely passes through the insertion port 11 and aligns with the locking hole 13. At this point, the locking arm 22 quickly springs outward under its own elastic restoring force, causing the locking portion 221 to engage in the locking hole 13, completing the locking. At this time, the side wall of the insertion port 11 of the locking housing 1 is precisely embedded in the groove of the locking plug 2. This structure effectively limits the shaking of the locking plug 2, making the connection more stable. At the same time, the stop 21 covers the insertion port 11 and cannot enter, forming a reliable limit.

[0048] When the safety buckle is pressed by an external object such as an elevator door, the pressing force acts on the unlocking actuator 3, causing it to slide. During the sliding process, the end edge of the actuating boss 31 begins to contact and press against the inclined surface of the locking part 221 protruding from the locking hole 13. Under the guidance of the inclined surface, the pressing force is decomposed into a force that causes the locking arms 22 to bend inward, forcing the two locking arms 22 to retract towards the center, thereby causing the locking part 221 to exit from the locking hole 13. Once the locking part 221 is completely disengaged from the locking hole 13, the lock between the locking plug 2 and the locking housing 1 is released. Under the tension of the pet leash, the locking plug 2 can quickly disengage from the locking housing 1, achieving automatic unlocking and ensuring the pet's safety.

[0049] The entire safety buckle has a simple structure with few parts, making it easy to manufacture and assemble. When the safety buckle is squeezed by external forces such as elevator doors, it can automatically convert the squeezing force into mechanical action, forcing the locking arm 22 to retract and disengage from the lock hole, thereby instantly breaking the connection and effectively preventing serious injury to pets caused by being dragged or lifted by the elevator.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this 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 pet leash safety buckle, characterized in that, include: A locking housing having a first end and a second end opposite to each other; the first end having a socket for inserting a locking plug; the second end having a first connecting part for connecting to a pet leash; and the side wall of the locking housing having at least a pair of oppositely arranged locking holes. A locking insert includes a stop block and at least one pair of locking arms disposed on one side of the stop block; the other side of the stop block is used to connect to the pet leash, and the radial dimension of the stop block is larger than the radial dimension of the socket; the pair of locking arms are disposed opposite each other and their opposite sides are configured as outwardly protruding locking portions; in the locked state, the locking arms can pass through the socket and be accommodated in the locking housing, and the locking portions are confined in the corresponding locking holes; An unlocking actuator is sleeved on the outside of the locking housing, and its inner wall is provided with an actuation structure. When the unlocking actuator is moved by external pressure, the actuation structure can compress the locking part, causing the locking arm to elastically deform and retract inward, thereby causing the locking part to exit from the locking hole and achieve unlocking.

2. The pet leash safety buckle according to claim 1, characterized in that, The actuation structure is a pair of actuation bosses formed on the opposite inner walls of the unlocking actuator.

3. The pet leash safety buckle according to claim 1, characterized in that, The locking part is an arc-shaped protrusion or a guide slope protrusion, and is located at the end of the locking arm away from the stop block, and the locking part and the locking arm are integrally formed; a groove is formed between the locking part and the stop block; in the locked state, the side wall of the insertion end of the locking housing is accommodated in the groove.

4. The pet leash safety buckle according to claim 3, characterized in that, The locking part is a wedge-shaped protrusion, and its guide slope gradually tapers from the root end near the locking arm toward its free end.

5. The pet leash safety buckle according to claim 1, characterized in that, A limiting structure is provided on the surface of the locking housing that is in contact with the unlocking actuator to restrict the free movement of the unlocking actuator relative to the locking housing in the non-unlocked state.

6. The pet leash safety buckle according to claim 5, characterized in that, The limiting structure includes a protrusion on the contact surface of one of the components and a recess on the contact surface of the other component that engages with the protrusion.

7. The pet leash safety buckle according to claim 5, characterized in that, The limiting structure includes anti-slip textures provided on the outer wall of the locking housing.

8. The pet leash safety buckle according to claim 1, characterized in that, The stop block has a second connecting part on the side facing away from the locking arm for connecting to a pet leash.

9. The pet leash safety buckle according to claim 8, characterized in that, The first connecting part and the second connecting part are respectively a ring structure, a hook structure or a snap-fit ​​structure.

10. The pet leash safety buckle according to claim 1, characterized in that, The locking housing is a regular polygonal cylindrical or cylindrical structure; the unlocking actuator is correspondingly sleeved on the outside of the locking housing and forms a sliding pair with it.

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