Adjustable climbing lock catch

Abstract

The utility model discloses an adjustable climbing lock catch, which relates to the technical field of climbing buckles, and comprises a hook and a spring bolt, and the spring bolt is rotatably connected to the end part of the hook through a torsion spring; a piston cavity is formed in the spring bolt, a piston plate is slidably connected between the inner walls of the piston cavity, a first spring is fixedly connected between one side of the piston plate and one side of the inner wall of the piston cavity, and a pressing rod is fixedly connected to the side, away from the first spring, of the piston plate. The pressing speed of the spring bolt is limited, the operation fault-tolerant time is prolonged by reducing the opening speed, and the requirement for preventing mistaken touch in daily operation is met; specifically, when the spring bolt is pressed, a rail groove in a protruding part extrudes a roller, a piston plate is pushed to move through a pressing rod, air in a piston cavity is exhausted through an air hole in the process, and the air displacement of the air hole is limited, so that the piston plate is blocked in the process of being pushed by the pressing rod, speed limiting is achieved, and unlocking caused by mistaken touch is avoided.

Description

Technical Field

[0001] This utility model relates to the field of climbing lock technology, specifically to an adjustable climbing lock. Background Technology

[0002] Climbing carabiners (also known as carabiners) are core safety devices used in mountaineering, rock climbing, and high-altitude operations to connect safety ropes, anchor points, and equipment. They typically consist of a high-strength aluminum alloy or steel body, a spring-driven locking tongue, and an opening and closing mechanism. Their core function is to achieve rapid opening and closing while withstanding dynamic impact loads, ensuring a reliable connection between personnel and equipment.

[0003] Most carabiners currently use a single-sided push-to-unlock design, with an operating logic similar to keychains: the user presses a button or lever on one side of the lock (usually located on the back of the latch), directly compressing the spring to retract the latch, opening the U-shaped opening to hook or unhook an object. The unlocking process relies on the instantaneous rebound force of the spring; after pressing, the latch quickly returns to its original position, meeting the need for quick one-handed operation.

[0004] The core problem with the current design is the uncontrollable unlocking speed: the fixed spring stiffness means that pressing can open the bolt instantly, which can easily lead to accidental opening when there is vibration, collision or accidental pressing. In addition, the fast unlocking lacks a buffer mechanism, and users cannot adjust the pressing response speed according to the scenario (such as needing to open quickly for emergency escape, and needing to delay to prevent accidental touch in daily use). Existing technology has not yet provided an effective speed adjustment structure, making it difficult to balance security and operational flexibility. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable climbing lock to solve the problems mentioned in the background art.

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

[0007] An adjustable climbing lock includes a hook and a latch. The latch is rotatably connected to the end of the hook via a torsion spring. A piston chamber is formed inside the latch, and a piston plate is slidably connected between the inner walls of the piston chamber. A first spring is fixedly connected between one side of the piston plate and one side of the inner wall of the piston chamber. A pressure rod is fixedly connected to the side of the piston plate away from the first spring. A roller is rotatably connected to the end of the pressure rod away from the piston plate. A protrusion is provided at the end of the hook near the latch, and a track groove is formed on the protrusion. The roller is rotatably connected to the track groove. An air hole is formed on the latch, and the piston chamber communicates with the external environment through the air hole. An adjustment component is provided outside the latch to adjust the airflow through the air hole.

[0008] By adopting the above technical solution, the pressing speed of the latch is limited, and the opening speed is reduced to increase the operation error tolerance time, thus meeting the need to prevent accidental activation in daily operation. Specifically, when the latch is pressed, the track groove on the protrusion squeezes the roller, and the piston plate is pushed to move by the pressure rod. During the process, the air inside the piston chamber is discharged through the air hole. By limiting the exhaust volume of the air hole (the adjustment component can be used to adjust the air flow of the air hole), the piston plate is obstructed during the pushing process by the pressure rod, thereby achieving speed limiting, that is, limiting the pressing speed of the latch and avoiding unlocking caused by accidental activation.

[0009] A further improvement of the present invention is that the adjusting component includes an annular groove formed on the outer wall of the latch, a strip hole communicating with the air hole is formed on one side of the annular groove, the outer wall of the latch is threaded, an adjusting cylinder is threadedly connected to the threaded part of the latch, and a sealing ring is fixedly connected to the inner wall of the adjusting cylinder, the sealing ring being in contact with the annular groove.

[0010] By adopting the above technical solution, the adjusting cylinder is rotated to make it move along the axial direction of the locking tongue by cooperating with the thread on the outer wall of the locking tongue, and the sealing ring is driven to slide in the annular groove. During the process, the strip hole can be blocked to varying degrees, thereby adjusting the speed limiting effect to meet the needs of daily use (preventing accidental contact) or emergency release.

[0011] A further improvement of this utility model is that: a reset hole communicating with the piston cavity is also provided on the locking tongue. Both the reset hole and the air hole are provided with unidirectional conduction components. The unidirectional conduction component located inside the air hole conducts unidirectionally from the piston cavity to the external environment, and the unidirectional conduction component located inside the reset hole conducts unidirectionally from the external environment to the piston cavity.

[0012] By adopting the above technical solution, the intake and exhaust are set as two independent pipes. The exhaust pipe (air hole) is blocked by the sealing ring on the strip hole, which restricts the air flow. However, the intake pipe (reset hole) is not affected by the speed limit. When the locking tongue is released, the piston plate resets, and the external gas enters from the reset hole without obstruction, thus enabling rapid reset.

[0013] A further improvement of the present invention is that the unidirectional conduction component includes a valve cylinder, an air inlet is provided inside the valve cylinder, a mounting bracket is fixedly connected between the inner walls of the valve cylinder, a valve stem is slidably connected through the mounting bracket, a plug is fixedly connected to the outside of the valve stem, the plug matches the shape of the air inlet and is used in conjunction with it, and a second spring is sleeved outside the valve stem and located between the plug and the mounting plate.

[0014] Using the above technical solution, when positive pressure is generated at the air inlet end of the valve cylinder, the pressure pushes the plug to move and squeezes the second spring, while driving the valve stem to move, thus achieving conduction. At this time, gas can enter through the air inlet end and be discharged after passing through the valve cylinder. Conversely, when positive pressure is generated at the end of the valve cylinder away from the air inlet, the plug is pressed to fit tightly against the air inlet, and gas cannot pass through, thus blocking it.

[0015] A further improvement of this utility model is that the axis of the valve cylinder located inside the reset hole is perpendicular to the axis of the locking tongue, and the valve stem inside the valve cylinder extends to the outside of the reset hole and has a rounded end.

[0016] Using the above technical solution, when an emergency unlocking is required in case of an emergency, the unlocking speed of pressing the locking tongue is slow due to the speed limiting structure, and cannot respond immediately. Therefore, by extending the valve rod inside the reset hole to the outside and placing it on the same side as the pressing part, the valve rod can be pressed during unlocking, so that the valve rod is actively pressed and drives the plug away from the air inlet, squeezing the second spring. In this state, the outside and the piston chamber are connected through the reset hole, so it is not affected by the speed limit and can respond quickly, thereby achieving emergency unlocking.

[0017] A further improvement of this utility model is that a pressing groove is provided on the side of the lock tongue near the reset hole, and an anti-slip strip is provided inside the pressing groove.

[0018] With the above technical solution, during the pressing of the latch, the pressing part is the pressing groove. The groove itself can prevent the finger from slipping when pressing, and anti-slip strips are provided to make the pressing process more stable.

[0019] A further improvement of this utility model is that the outer wall of the hook is provided with anti-slip texture.

[0020] By adopting the above technical solution, the slippage of the hand grip of the hook during use is reduced.

[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0022] 1. This utility model provides an adjustable climbing lock, which limits the pressing speed of the locking tongue and slows down the opening speed to increase the operation error tolerance time, thus meeting the need to prevent accidental activation in daily operation. Specifically, when the locking tongue is pressed, the track groove on the protrusion squeezes the roller, and the piston plate is pushed to move by the pressure rod. During the process, the air inside the piston chamber is discharged through the air hole. By limiting the exhaust volume of the air hole (the adjustment component can be used to adjust the air flow of the air hole), the piston plate is obstructed during the pushing process by the pressure rod, thereby achieving speed limiting, that is, limiting the pressing speed of the locking tongue and avoiding unlocking caused by accidental activation.

[0023] 2. This utility model provides an adjustable climbing lock. By rotating the adjusting cylinder, the thread on the outer wall of the locking tongue is used to make it move along the locking tongue axis, and the sealing ring slides in the annular groove. During the process, the strip hole can be blocked to different degrees, thereby realizing the adjustment of the speed limiting effect to meet the needs of daily use (preventing accidental contact) or emergency release.

[0024] 3. This utility model provides an adjustable climbing lock, which sets the air intake and exhaust as two independent pipes. The exhaust pipe (air hole) is blocked by the sealing ring on the strip hole, and the air flow is limited. However, the air intake pipe (reset hole) is not affected by the speed limit. When the lock tongue is released, the piston plate resets, and the external gas enters from the reset hole without obstruction, thus enabling rapid reset. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the locking state of the latch and hook of this utility model;

[0027] Figure 2 This is a structural diagram of the locking tongue and hook in the unlocked state of this utility model;

[0028] Figure 3 This is one of the cross-sectional structural diagrams of the locking tongue of this utility model (in the state of engagement with the hook);

[0029] Figure 4 This is the second cross-sectional view of the locking tongue of this utility model;

[0030] Figure 5 This is a cross-sectional view of the unidirectional conduction component of this utility model.

[0031] In the diagram: 1. Hook; 2. Locking tongue; 3. Piston chamber; 4. Piston plate; 5. Pressure rod; 6. Protrusion; 7. Roller; 8. Track groove; 9. First spring; 10. Adjusting cylinder; 11. Sealing ring; 12. Air hole; 13. Strip hole; 14. Annular groove; 15. Reset hole; 16. Valve cylinder; 17. Air port; 18. Mounting bracket; 19. Valve stem; 20. Plug; 21. Second spring; 22. Anti-slip texture; 23. Pressing groove; 24. Anti-slip strip. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to embodiments:

[0033] Example 1

[0034] like Figure 1 , Figure 2 and Figure 3As shown, this utility model provides an adjustable climbing lock, including a hook 1 and a latch 2. The latch 2 is rotatably connected to the end of the hook 1 by a torsion spring. A piston chamber 3 is provided inside the latch 2. A piston plate 4 is slidably connected between the inner walls of the piston chamber 3. A first spring 9 is fixedly connected between one side of the piston plate 4 and one side of the inner wall of the piston chamber 3. A pressure rod 5 is fixedly connected to the side of the piston plate 4 away from the first spring 9. A roller 7 is rotatably connected to the end of the pressure rod 5 away from the piston plate 4. A protrusion 6 is provided at the end of the hook 1 near the latch 2. A track groove 8 is provided on the protrusion 6. The roller 7 is rotatably connected to the track groove 8. An air hole 12 is provided on the latch 2. The piston chamber 3 is connected to the external environment through the air hole 12. An adjustment component is provided on the outside of the latch 2. The adjustment component is used to adjust the air flow of the air hole 12.

[0035] In this embodiment, by limiting the pressing speed of the latch 2, the opening speed is slowed down to increase the operation error tolerance time, thus meeting the need to prevent accidental touch in daily operation. Specifically, when the latch 2 is pressed, the track groove 8 on the protrusion 6 squeezes the roller 7, and the piston plate 4 is pushed to move by the pressure rod 5. During the process, the air inside the piston chamber 3 is discharged through the air hole 12. By limiting the exhaust volume of the air hole 12 (the adjustment component can be used to adjust the air flow of the air hole 12), the piston plate 4 is obstructed during the pushing process by the pressure rod 5, thereby achieving speed limiting, that is, limiting the pressing speed of the latch 2, and avoiding unlocking caused by accidental touch.

[0036] like Figure 2 and Figure 3 As shown, preferably, the adjusting component includes an annular groove 14 formed on the outer wall of the latch 2, a strip hole 13 communicating with the air hole 12 is formed on one side of the annular groove 14, the outer wall of the latch 2 is threaded, the threaded part of the latch 2 is threadedly connected to the adjusting cylinder 10, and the inner wall of the adjusting cylinder 10 is fixedly connected to the sealing ring 11, which fits against the annular groove 14.

[0037] In this embodiment, by rotating the adjusting cylinder 10, the thread on the outer wall of the locking tongue 2 is used to make it move along the axial direction of the locking tongue 2, and the sealing ring 11 slides in the annular groove 14. During the process, the strip hole 13 can be blocked to varying degrees, thereby adjusting the speed limiting effect to meet the needs of daily use (preventing accidental contact) or emergency release.

[0038] like Figure 3 and Figure 4 As shown, preferably, the locking tongue 2 is also provided with a reset hole 15 that communicates with the inside of the piston chamber 3. Both the reset hole 15 and the air hole 12 are provided with unidirectional conduction components. The unidirectional conduction component located inside the air hole 12 conducts unidirectionally from the piston chamber 3 to the external environment, and the unidirectional conduction component located inside the reset hole 15 conducts unidirectionally from the external environment to the piston chamber 3.

[0039] If the locking tongue 2 is slowly reset when it is released, the user may experience disengagement because the locking tongue 2 is not fully reset after the user releases the hand. Therefore, it is necessary to optimize the reset action of the locking tongue 2, that is, not to limit its speed during reset.

[0040] In this embodiment, the intake and exhaust are set as two independent pipes. The exhaust pipe (air hole 12) is blocked by the sealing ring 11 on the strip hole 13, and the air flow is limited. However, the intake pipe (reset hole 15) is not affected by the speed limit. When the locking tongue 2 is released, the piston plate 4 is reset, and the external gas can enter from the reset hole 15 without obstruction, so that it can be reset quickly.

[0041] like Figure 3 , Figure 4 and Figure 5 As shown, preferably, the unidirectional conduction assembly includes a valve cylinder 16, an air inlet 17 is provided inside the valve cylinder 16, a mounting bracket 18 is fixedly connected between the inner walls of the valve cylinder 16, a valve stem 19 is slidably connected through the mounting bracket 18, a plug 20 is fixedly connected to the outside of the valve stem 19, the plug 20 is matched with the shape of the air inlet 17 and is used in conjunction with it, and a second spring 21 is sleeved on the outside of the valve stem 19 and located between the plug 20 and the mounting plate.

[0042] In this embodiment, when positive pressure is generated at the air inlet 17 end of the valve cylinder 16, the pressure pushes the plug 20 to move and squeezes the second spring 21, while driving the valve stem 19 to move, thus achieving conduction. At this time, gas can enter through the air inlet 17 end and be discharged after passing through the valve cylinder 16. Conversely, when positive pressure is generated at the end of the valve cylinder 16 away from the air inlet 17, the plug 20 is pressed to fit tightly against the air inlet 17, and gas cannot pass through, thus blocking it.

[0043] like Figure 3 and Figure 5 As shown, preferably, the axis of the valve cylinder 16 located inside the reset hole 15 is perpendicular to the axis of the locking tongue 2, and the valve stem 19 inside the valve cylinder 16 extends to the outside of the reset hole 15 and has a rounded end.

[0044] In this embodiment, when an emergency unlocking is required due to a sudden situation, the unlocking speed of pressing the latch 2 is slow due to the speed limiting structure, and it cannot respond immediately. Therefore, by extending the valve stem 19 inside the reset hole 15 to the outside and placing it on the same side as the pressing part, the valve stem 19 can be pressed during unlocking, so that the valve stem 19 is actively pressed and the plug 20 is driven away from the air inlet 17, squeezing the second spring 21. In this state, the outside and the piston chamber 3 are connected through the reset hole 15, so it is not affected by the speed limiting and can respond quickly, thereby achieving emergency unlocking.

[0045] It should be noted that the valve stem 19 extends closer to the hinge shaft than the pressing part, so the lever arm is shorter at this part, requiring more force to press, thus reducing the possibility of accidental unlocking.

[0046] like Figure 1 and Figure 2 As shown, preferably, a pressing groove 23 is provided on the side of the locking tongue 2 near the reset hole 15, and an anti-slip strip 24 is provided inside the pressing groove 23.

[0047] In this embodiment, during the pressing of the latch 2, the pressing part is the pressing groove 23. The groove itself can prevent the finger from slipping when pressing, and an anti-slip strip 24 is provided to make the pressing process more stable.

[0048] like Figure 1 and Figure 2 As shown, preferably, the outer wall of the hook 1 is provided with anti-slip texture 22.

[0049] In this embodiment, the slippage of the hand grip of hook 1 during use is reduced.

[0050] The working principle of this adjustable climbing lock is explained in detail below.

[0051] like Figures 1-5 As shown, when the latch 2 is pressed, the track groove 8 on the protrusion 6 squeezes the roller 7, and the piston plate 4 is pushed to move by the pressure rod 5. During the process, the air inside the piston chamber 3 is discharged through the air hole 12. By limiting the exhaust volume of the air hole 12 (the adjustment component can be used to adjust the air flow of the air hole 12), the piston plate 4 is obstructed during the push of the pressure rod 5, thereby achieving speed limiting, that is, limiting the pressing speed of the latch 2 and avoiding unlocking caused by accidental contact. By rotating the adjustment cylinder 10, it moves along the axial direction of the latch 2 in conjunction with the thread on the outer wall of the latch 2, and drives the sealing ring 11 to slide in the annular groove 14. During the process, the strip hole 13 can be blocked to varying degrees, thereby adjusting the speed limiting effect to meet the needs of daily use (preventing accidental contact) or emergency release.

[0052] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An adjustable climbing carabiner, comprising a hook (1) and a latch (2), wherein the latch (2) is rotatably connected to the end of the hook (1) via a torsion spring; characterized in that: The latch (2) has a piston chamber (3) inside. A piston plate (4) is slidably connected between the inner walls of the piston chamber (3). A first spring (9) is fixedly connected between one side of the piston plate (4) and one side of the inner wall of the piston chamber (3). A pressure rod (5) is fixedly connected to the side of the piston plate (4) away from the first spring (9). A roller (7) is rotatably connected to the end of the pressure rod (5) away from the piston plate (4). A protrusion (6) is provided at the end of the hook (1) near the latch (2). A track groove (8) is provided on the protrusion (6). The roller (7) is slidably connected to the track groove (8). An air hole (12) is provided on the latch (2). The piston chamber (3) is connected to the external environment through the air hole (12). An adjustment component is provided on the outside of the latch (2). The adjustment component is used to adjust the air flow of the air hole (12).

2. The adjustable climbing lock according to claim 1, characterized in that: The adjustment assembly includes an annular groove (14) formed on the outer wall of the latch (2). A strip hole (13) communicating with the air hole (12) is formed on one side of the annular groove (14). The outer wall of the latch (2) is threaded. An adjustment cylinder (10) is threadedly connected to the threaded part of the latch (2). A sealing ring (11) is fixedly connected to the inner wall of the adjustment cylinder (10). The sealing ring (11) fits into the annular groove (14).

3. An adjustable climbing lock according to claim 2, characterized in that: The locking tongue (2) is also provided with a reset hole (15) that communicates with the inside of the piston cavity (3). Both the reset hole (15) and the air hole (12) are provided with unidirectional conduction components. The unidirectional conduction component located inside the air hole (12) conducts unidirectionally from the piston cavity (3) to the external environment, and the unidirectional conduction component located inside the reset hole (15) conducts unidirectionally from the external environment to the piston cavity (3).

4. An adjustable climbing lock according to claim 3, characterized in that: The unidirectional conduction assembly includes a valve cylinder (16), an air inlet (17) is provided inside the valve cylinder (16), a mounting bracket (18) is fixedly connected between the inner walls of the valve cylinder (16), a valve stem (19) is slidably connected through the mounting bracket (18), a plug (20) is fixedly connected to the outside of the valve stem (19), the plug (20) matches the shape of the air inlet (17) and is used in conjunction with it, and a second spring (21) is sleeved outside the valve stem (19) and located between the plug (20) and the mounting plate.

5. An adjustable climbing lock according to claim 4, characterized in that: The axis of the valve cylinder (16) located inside the reset hole (15) is perpendicular to the axis of the locking tongue (2). The valve stem (19) inside the valve cylinder (16) extends to the outside of the reset hole (15) and has rounded ends.

6. An adjustable climbing lock according to claim 5, characterized in that: The latch (2) has a pressing groove (23) on the side near the reset hole (15), and the pressing groove (23) has an anti-slip strip (24) inside.

7. An adjustable climbing lock according to claim 6, characterized in that: The outer wall of the hook (1) is provided with anti-slip texture (22).

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