Sliding unlock stainless steel dog buckle

Abstract

This utility model discloses a sliding unlocking stainless steel dog catch, comprising a movable latch, a compression spring, a positioning post, a lock body, and a connecting ring. The lock body has an opening and a connecting portion with an elongated through hole. The lower end of the movable latch has a shaft inserted into the through hole and slidable along its axial direction. The lock body has a protrusion, and the movable latch has a groove. The protrusion is engaged in the groove. The movable latch has a receiving hole with its opening facing the connecting portion. The positioning post is slidably disposed in the receiving hole. The compression spring is housed in the receiving hole and abuts against one end of the positioning post, while the other end of the positioning post abuts against the top surface of the connecting portion. The connecting ring is connected to the lock body. This sliding unlocking stainless steel dog catch prevents accidental opening, provides high security, effectively protects the spring, and has a long service life.

Description

Technical Field

[0001] This utility model relates to a connecting buckle, and more particularly to a stainless steel dog buckle with sliding unlocking. Background Technology

[0002] A dog buckle (also known as a metal hook and loop fastener) is a common connecting device, typically consisting of the following core components: a buckle body, a pressing rod, and a hook structure and buckle ring designed at the upper end of the buckle body. These are hinged to the buckle body by a torsion spring or spring and are used to hang collars, ropes, or other connecting parts. When pressed, the pressing rod separates from the hook, forming an opening; when released, the spring returns it to its original position, achieving automatic locking.

[0003] In bags, backpacks, and tote bags, dog clips serve as detachable connectors, allowing for easy switching between hand-carrying, shoulder-carrying, or crossbody carrying. Suitable for carabiners, keychains, tool hangers, and other applications, they provide reliable connection and quick assembly / disassembly. High-quality dog ​​clips feature an anti-slip design to prevent accidental opening due to accidental contact or external pulling, enhancing safety. With their simple structure, ease of use, and durability, dog clips play an important role in daily life.

[0004] However, the existing design has significant drawbacks: the end of the push rod is a free end, relying solely on the spring force to maintain contact with the hook. Under intense movement or forceful pulling, the push rod can easily be accidentally activated, causing it to separate from the buckle. Furthermore, during pulling, if the external force is too great, the torsion arm of the torsion spring can deform and fail to recover, losing its elasticity and thus failing to achieve the locking purpose, rendering the dog catch ineffective. Therefore, this technical solution provides a sliding unlocking stainless steel dog catch that can prevent the push rod from separating from the buckle under significant external force (from pets or human intervention) and prevent spring failure. Utility Model Content

[0005] The purpose of this invention is to provide a stainless steel dog buckle that prevents accidental opening, provides high security and effective protection for the spring, and has a long service life.

[0006] To achieve the above objectives, this utility model provides a sliding unlocking stainless steel dog catch, comprising a movable catch, a compression spring, a positioning pin, a lock body, and a connecting ring; the lock body has a semi-circular structure with an opening, and a connecting portion is provided on the lower side of the lock body near the opening, the connecting portion having an elongated through hole, the lower end of the movable catch having a shaft, the shaft being inserted into the through hole and slidable along the axial direction of the through hole; the upper side of the lock body near the opening has a protrusion, and one end face of the movable catch near the protrusion has a recessed groove; when the movable catch closes the opening, the protrusion is engaged in the groove; the movable catch has a receiving hole, the opening of which faces the connecting portion, the positioning pin is slidably disposed in the receiving hole, the compression spring is built into the receiving hole and abuts against one end of the positioning pin, the other end of the positioning pin abuts against the top surface of the connecting portion; the connecting ring is connected to the lock body.

[0007] Compared with the prior art, this utility model provides a protruding block on the upper side of the lock body near the opening, and a recessed groove on the end face of the movable latch near the protruding block, so that the protruding block is locked in the groove. This prevents the movable latch from opening the lock body when subjected to external force. At the same time, it also prevents the latch from accidentally opening from certain angles due to a change in direction, thus effectively avoiding accidental opening and improving safety. In addition, by providing a receiving hole and a positioning post, the compression spring is built into the receiving hole and abuts against the positioning post. The positioning post then abuts against the top surface of the connecting part. This protects the compression spring from deformation caused by external forces in other directions, helps maintain the elasticity of the spring, and extends its service life.

[0008] Preferably, the lower end of the movable latch extends into two fork arms, forming a receiving area between the two fork arms. The receiving area accommodates the connecting part, and the receiving hole is opened on the bottom surface between the two fork arms. The shaft is connected between the two fork arms. By providing two fork arms, the movable latch can be easily connected to the connecting part of the lock body, resulting in a very simple and compact structure. Furthermore, the two fork arms are located on opposite sides of the connecting part, making the force on the movable latch more even, thereby extending its service life.

[0009] Preferably, the shaft includes a sleeve and a connector. The sleeve is inserted into the through hole, and one end of the connector is connected to the sleeve. A first limiting head is provided at the end of the sleeve away from the connector, and a second limiting head is provided at the end of the connector away from the sleeve. The movable latch has a connecting hole extending through both sides, and the diameters of the first and second limiting heads are larger than the diameter of the connecting hole. By connecting the sleeve and the connector, the shaft can be more easily and quickly assembled or disassembled with the movable latch and the lock body.

[0010] Specifically, the sleeve has an internal thread, and one end of the connector has an external thread, with the connector threadedly connected to the sleeve. This makes connecting the sleeve and the connector easier and faster.

[0011] Preferably, the end of the positioning post near the compression spring is provided with a positioning shaft, the diameter of which is smaller than the diameter of the positioning post; one end of the compression spring is fitted onto the positioning shaft. Providing the positioning post and positioning shaft allows the compression spring to be completely housed within the receiving hole, preventing it from being exposed. Furthermore, the positioning shaft positions the compression spring, ensuring it can only extend and retract along the direction of the through hole, preventing twisting and accelerated aging, and effectively extending its service life.

[0012] Preferably, the end of the positioning post near the connecting part is an arc surface, and the top end of the connecting part is an arc surface; the arc surface of the positioning post slides against the arc surface of the connecting part. This reduces the contact area between the positioning post and the connecting part, reduces wear, and extends service life.

[0013] Preferably, the lock body has a protruding sleeve, and the connecting ring has a socket hole. The sleeve is inserted into the socket hole, and one end of the sleeve has a limiting member that prevents the sleeve from exiting the socket hole. By connecting the sleeve to the socket hole, the connection with the connecting ring can be easily locked without affecting the rotation of the connecting ring, ensuring the stability and practicality of the connection.

[0014] Specifically, the sleeve and the socket are fitted with a clearance.

[0015] Specifically, the outer periphery of the end of the sleeve column away from the lock body is provided with a slot, and the limiting member is a retaining ring, which is engagedly connected to the slot.

[0016] Specifically, the end of the sleeve away from the lock body is provided with a threaded connection hole, one end of the limiting member is threadedly connected to the threaded connection hole, and the end of the limiting member away from the sleeve is provided with a head, the diameter of which is larger than the diameter of the sleeve hole. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the stainless steel dog buckle with sliding unlocking according to this utility model.

[0018] Figure 2 This is an exploded view of the stainless steel dog buckle with sliding unlocking according to this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the stainless steel dog buckle with sliding unlocking according to this utility model.

[0020] Figure 4 This is a diagram showing the state of the stainless steel dog catch with sliding unlocking mechanism of this utility model when it is opened. Detailed Implementation

[0021] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] This invention discloses a sliding unlocking stainless steel dog buckle 100, comprising a movable buckle 1, a compression spring 2, a positioning pin 3, a lock body 4, and a connecting ring 5; the lock body 4 has a semi-circular structure and an opening 4a. A connecting portion 41 is provided on the lower side of the lock body 4 near the opening 4a. The connecting portion 41 has an elongated through hole 42. A shaft 11 is provided at the lower end of the movable buckle 1. The shaft 11 is inserted into the through hole 42 and can slide along the axial direction of the through hole 42, allowing the movable buckle 1 to slide relative to the connecting portion 41; the movable buckle 1 is pivotally connected to the connecting portion 41 via the shaft 11, allowing it to rotate relative to the connecting portion 41 around the central axis of the shaft 11. The lock body 4 has a protruding block 43 on its upper side near the opening 4a. The movable latch 1 has a recessed groove 12 on one end face near the protruding block 43. When the movable latch 1 closes the opening 4a, the protruding block 43 is engaged in the groove 12. When the movable latch 1 slides downward, the groove 12 at the upper end of the movable latch 1 moves away from the protruding block 43. Then, the movable latch 1 rotates outward to open the opening 4a of the lock body. The movable latch 1 has a receiving hole 13, the opening of which faces the connecting part 41. The positioning pin 3 is slidably disposed in the receiving hole 13. The compression spring 2 is housed in the receiving hole 13 and abuts against one end of the positioning pin 3. The other end of the positioning pin 3 abuts against the top surface 41a of the connecting part 41. The connecting ring 5 is connected to the lock body 4.

[0023] The lower end of the movable latch 1 extends into two fork arms 14, forming a receiving area 15 between the two fork arms 14. The receiving area 15 accommodates the connecting part 41, and the receiving hole 13 is formed on the bottom surface between the two fork arms 14. The shaft 11 is connected between the two fork arms 14. By setting two fork arms 14, the movable latch 1 can be easily connected to the connecting part 41 of the lock body 4. The structure after connection is very simple and compact. Furthermore, the two fork arms 14 are located on opposite sides of the connecting part 41, making the force on the movable latch 1 more even, thereby extending its service life.

[0024] The shaft 11 includes a sleeve 111 and a connector 112. The sleeve 111 is inserted into the through hole 42, and one end of the connector 112 is connected to the sleeve 111. The end of the sleeve 111 away from the connector 112 has a first limiting head 111a, and the end of the connector 112 away from the sleeve 111 has a second limiting head 112a. The movable latch 1 has a connecting hole 16 that passes through both sides. The diameters of the first limiting head 111a and the second limiting head 112a are larger than the diameter of the connecting hole 16. By connecting the sleeve 111 and the connector 112, the shaft 11 can be more easily and quickly assembled or disassembled with the movable latch 1 and the lock body 4. Specifically, the sleeve 111 has an internal thread, and one end of the connector 112 has an external thread, with the connector 112 threadedly connected to the sleeve 111. This makes the connection between the sleeve 111 and the connector 112 more convenient and faster.

[0025] The positioning post 3 has a positioning shaft 31 at its end near the compression spring 2. The diameter of the positioning shaft 31 is smaller than the diameter of the positioning post 3. One end of the compression spring 2 is fitted onto the positioning shaft 31. The positioning post 3 and positioning shaft 31 allow the compression spring 2 to be completely housed within the receiving hole 13, preventing it from being exposed. Furthermore, the positioning shaft 31 positions the compression spring 2, ensuring it can only extend and retract along the direction of the through hole 42, preventing twisting and accelerated aging, and effectively extending its service life. The end of the positioning post 3 near the connecting part 41 is an arc surface, and the top of the connecting part 41 is also an arc surface. The arc surface of the positioning post 3 slides against the arc surface of the connecting part 41. This reduces the contact area between the positioning post 3 and the connecting part 41, reducing wear and extending service life.

[0026] The lock body 4 has a protruding sleeve 44, and the connecting ring 5 has a socket 51. The sleeve 44 is inserted into the socket 51, and the sleeve 44 and the socket 51 are in a clearance fit. One end of the sleeve 44 is provided with a limiting member 45, which prevents the sleeve 44 from exiting the socket 51. In this embodiment, the outer periphery of the end of the sleeve 44 away from the lock body 4 is provided with a groove 441, and the limiting member 45 is a retaining ring, which engages with the groove 441. By using the sleeve 44 to connect with the socket 51, the connection with the connecting ring 5 can be easily locked without affecting the rotation of the connecting ring 5, ensuring the stability and practicality of the connection of the connecting ring 5.

[0027] In other embodiments, the sleeve may have a threaded connection hole at the end away from the lock body, the limiting member is a screw, one end of the limiting member is threadedly connected to the threaded connection hole, and the end of the limiting member away from the sleeve has a head, the diameter of which is larger than the diameter of the sleeve hole, so that the connecting ring can also be connected to the lock body.

[0028] Compared with the prior art, this utility model provides a protruding block 43 on the upper side of the lock body 4 near the opening 4a, and a recessed groove 12 on the end face of the movable latch 1 near the protruding block 43, so that the protruding block 43 is stuck in the groove 12. This prevents the movable latch 1 from opening the lock body 4 when subjected to external force. At the same time, it also prevents the latch from changing direction and squeezing the movable latch 1, causing it to open accidentally from certain angles. Therefore, it effectively avoids accidental opening and improves the safety of use. In addition, by providing a receiving hole 13 and a positioning post 3, the compression spring 2 is built into the receiving hole 13 and abuts against the positioning post 3. The positioning post 3 then abuts against the top surface of the connecting part 41. This protects the compression spring 2 from deformation caused by external forces in other directions, helps maintain the elasticity of the compression spring, and extends its service life. Furthermore, the movable latch 1, positioning post 3, lock body 4, and connecting ring 5 of the stainless steel dog buckle of this utility model are all made by metal powder injection molding. The structural strength of each component is high, and after assembly, the entire stainless steel dog buckle has high strength and is not easily deformed. Therefore, it has high shape retention and good dimensional stability.

[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A slide-to-unlock stainless steel dog clasp, characterized by: The lock includes a movable latch, a compression spring, a positioning pin, a lock body, and a connecting ring. The lock body has a semi-annular structure with an opening. A connecting portion is located on the lower side of the lock body near the opening, and the connecting portion has an elongated through hole. A shaft is located at the lower end of the movable latch, and the shaft is inserted into the through hole and can slide axially along the through hole. A protrusion is located on the upper side of the lock body near the opening, and a groove is recessed on one end face of the movable latch near the protrusion. When the movable latch closes the opening, the protrusion is engaged in the groove. A receiving hole is located within the movable latch, with the opening facing the connecting portion. The positioning pin is slidably disposed within the receiving hole. The compression spring is housed within the receiving hole and abuts against one end of the positioning pin, while the other end of the positioning pin abuts against the top surface of the connecting portion. The connecting ring is connected to the lock body.

2. The stainless steel dog catch with sliding unlocking according to claim 1, characterized in that: The lower end of the movable latch extends into two fork arms, forming a receiving area between the two fork arms. The receiving area accommodates the connecting part, and the receiving hole is opened on the bottom surface between the two fork arms; the shaft is connected between the two fork arms.

3. The stainless steel dog catch with sliding unlocking according to claim 1, characterized in that: The shaft includes a sleeve and a connector. The sleeve is inserted into the through hole, and one end of the connector is connected to the sleeve. The sleeve is provided with a first limiting head at the end away from the connector, and the connector is provided with a second limiting head at the end away from the sleeve. The movable latch has a connecting hole that passes through both sides. The diameters of the first limiting head and the second limiting head are larger than the diameter of the connecting hole.

4. The stainless steel dog catch with sliding unlocking according to claim 3, characterized in that: The sleeve has an internal thread, and one end of the connector has an external thread. The connector is threadedly connected to the sleeve.

5. The stainless steel dog catch with sliding unlocking according to claim 1, characterized in that: The positioning post has a positioning shaft at the end near the compression spring, and the diameter of the positioning shaft is smaller than the diameter of the positioning post; one end of the compression spring is fitted onto the positioning shaft.

6. The stainless steel dog catch with sliding unlocking according to claim 1, characterized in that: The end of the positioning post near the connecting part is an arc surface, and the top of the connecting part is an arc surface; the arc surface of the positioning post slides against the arc surface of the connecting part.

7. The stainless steel dog catch with sliding unlocking according to claim 1, characterized in that: The lock body has a protruding sleeve, the connecting ring has a socket hole, the sleeve is inserted into the socket hole, and one end of the sleeve is provided with a limiting member to prevent the sleeve from exiting the socket hole.

8. The stainless steel dog catch with sliding unlocking according to claim 7, characterized in that: The sleeve and the socket are fitted with a clearance.

9. The stainless steel dog catch with sliding unlocking according to claim 7, characterized in that: The sleeve post has a slot on its outer periphery at the end away from the lock body, and the limiting member is a retaining ring, which is engagedly connected to the slot.

10. The stainless steel dog catch with sliding unlocking according to claim 7, characterized in that: The sleeve post has a threaded connection hole at one end away from the lock body, and one end of the limiting member is threadedly connected to the threaded connection hole. The limiting member has a head at one end away from the sleeve post, and the diameter of the head is larger than the diameter of the sleeve hole.

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