Lockable spring pin

Abstract

The utility model discloses a lockable spring pin which comprises a plug pin, a fixing ring is arranged at one end of the plug pin, a compression spring is arranged on one side of the fixing ring, a lock shell is arranged outside the compression spring, a locking block is arranged at the top end of the fixing ring, and a locking hole is formed in the top end of the lock shell. A lock cap is arranged on one side of the lock shell, and a connecting assembly is arranged on one side of the lock cap. The design of the fixing ring, the locking block, the locking hole and the lock cap is utilized, the lock cap is pulled, the lock cap drives the round rod to move in the direction close to the lock shell through the threaded rod, the fixing ring drives the locking block to enter the locking hole, the plug pin is close to the first round hole, the plug pin unlocks the movable part, then the lock cap is rotated, and the movable part is locked. The locking nut enables the locking block to rotate, under the limitation of the locking hole, the locking block cannot move linearly, the plug pin cannot move, the unlocking state is kept, and therefore all spring pins of the whole movable part can be conveniently unlocked through one spring pin unlocking device.

Description

Technical Field

[0001] The utility model relates to the technical field of spring positioning devices, in particular to a lockable spring pin. Background Art

[0002] In the field of industrial tooling, spring positioning devices are often needed to fix movable parts. The spring positioning device is composed of a latch, a housing, a compression spring and a fixing ring. When in use, the compression spring will drive the fixing ring to insert the latch into the hole of the movable part to lock the movable part. Therefore, the spring positioning device has the advantages of easy operation and reliable fixation. However, in actual use, a movable part may contain multiple spring positioning devices. Therefore, when the movable part is unlocked, multiple spring positioning devices need to be pulled out at the same time to move the latches of the multiple spring positioning devices out of the holes respectively. Therefore, multiple people need to operate at the same time to disassemble the movable part, which is not convenient enough. Utility Model Content

[0003] The purpose of the utility model is to provide a lockable spring pin to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lockable spring pin, comprising a latch, a fixing ring for driving the latch to move is provided at one end of the latch, a compression spring for pushing the fixing ring to move is provided on one side of the fixing ring, a lock shell for storing the compression spring is provided on the outside of the compression spring, a locking block for locking the position of the fixing ring is provided at the top of the fixing ring, a locking hole for moving the locking block is provided at the top of the lock shell, a lock cap for driving the latch to move is provided on one side of the lock shell, and a connecting component for connecting with the latch is provided on one side of the lock cap.

[0005] Preferably, the fixing ring is sleeved on the outer wall of one end of the pin, the connecting assembly includes a round rod and a threaded rod, one end of the round rod is fixedly connected to one end of the pin, the other end of the round rod is fixedly connected to one end of the threaded rod, and one side of the lock cap is provided with an insertion hole for inserting the threaded rod.

[0006] Preferably, a locking nut is fixedly connected to the interior of the insertion hole, and the threaded rod is threadably inserted and connected to the interior of the locking nut.

[0007] Preferably, a cavity is provided inside the lock shell, a first circular hole for movably inserting and connecting a fixing ring is provided on one side of the inner wall of the cavity, a second circular hole for movably inserting and connecting a round rod is provided on the other side of the inner wall of the cavity, and the locking hole is provided at the top of the lock shell.

[0008] Preferably, the locking hole is L-shaped.

[0009] Technical effects and advantages of the utility model:

[0010] The utility model utilizes the design of a fixing ring, a locking block, a locking hole and a locking cap. When the movable part needs to be unlocked, the locking cap is pulled, and the locking cap drives the round rod to move toward the lock shell through the threaded rod, so that the fixing ring drives the locking block to enter the locking hole, and the latch pin approaches the first round hole, further compressing the compression spring, so that the latch pin releases the lock of the movable part. Then the locking cap is rotated, and the locking cap causes the locking block to rotate. Therefore, under the restriction of the locking hole, the locking block cannot move in a straight line, so that the latch pin cannot move and remains in an unlocked state, so that all the spring pins of the entire movable part can be unlocked by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the locking state structure of the utility model.

[0012] Figure 2 This is a schematic diagram of the structure of the utility model in the unlocking state.

[0013] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0014] Figure 4 This is a schematic diagram of the cross-sectional structure of the lock housing of the utility model.

[0015] In the figure: 1. latch; 2. fixing ring; 3. round rod; 4. compression spring; 5. threaded rod; 6. lock housing; 7. lock cap; 8. locking nut; 9. locking block; 10. locking hole; 11. first round hole; 12. second round hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides Figure 1-4A lockable spring pin is shown, comprising a latch 1, a fixing ring 2 for driving the latch 1 to move is provided at one end of the latch 1, a compression spring 4 for pushing the fixing ring 2 to move is provided on one side of the fixing ring 2, a lock shell 6 for storing the compression spring 4 is provided on the outside of the compression spring 4, a locking block 9 for locking the position of the fixing ring 2 is provided at the top of the fixing ring 2, a locking hole 10 for moving the locking block 9 is provided at the top of the lock shell 6, a lock cap 7 for driving the latch 1 to move is provided on one side of the lock shell 6, and a connecting component for connecting with the latch 1 is provided on one side of the lock cap 7.

[0018] Specifically, the fixing ring 2 is sleeved on the outer wall of one end of the pin 1, and the connecting assembly includes a round rod 3 and a threaded rod 5. One end of the round rod 3 is fixedly connected to one end of the pin 1, and the other end of the round rod 3 is fixedly connected to one end of the threaded rod 5. An insertion hole for inserting the threaded rod 5 is opened on one side of the lock cap 7, and a locking nut 8 is fixedly connected to the inside of the insertion hole. The threaded rod 5 is threadedly inserted and connected to the inside of the locking nut 8, and the locking hole 10 is L-shaped.

[0019] Further, the fixing ring 2 is fixedly sleeved on the outer wall of the pin 1 near the end of the round rod 3, the fixing method of the fixing ring 2 is welding, the bottom end of the locking block 9 is fixedly connected to the outer wall of the fixing ring 2 by welding, the round rod 3 and the pin 1 are fixedly connected by welding, the compression spring 4 is sleeved on the outer wall of the round rod 3, the outer diameter of the compression spring 4 is 0.9 times the diameter of the fixing ring 2, the inner diameter of the compression spring 4 is 1.2 times the diameter of the round rod 3, the diameter of the round rod 3 is 0.7 times the diameter of the threaded rod 5, and the round rod 3 is connected to the threaded rod 5 at the opposite end. The connection is fixed by welding, and a third circular hole is opened on one side of the inner wall of the insertion hole. The third circular hole is used to insert the threaded rod 5, so that the threaded rod 5 and the locking nut 8 are threadedly inserted and connected, so that the round rod 3 and the locking nut 8 clamp the lock cap 7. The diameter of the locking block 9 is 0.95 times the width of the locking hole 10. The free length of the compression spring 4 is greater than the length of the lock shell 6. The locking hole 10 consists of a transverse hole and a limiting hole perpendicular to the transverse hole. The transverse hole is used to prevent the locking block 9 from moving along the straight line direction of the pin 1, and the limiting hole is used to limit the movement of the locking block 9.

[0020] Specifically, a cavity is opened inside the lock shell 6, a first circular hole 11 for movably inserting and connecting the fixing ring 2 is opened on one side of the inner wall of the cavity, a second circular hole 12 for movably inserting and connecting the round rod 3 is opened on the other side of the inner wall of the cavity, and a locking hole 10 is opened at the top of the lock shell 6.

[0021] Furthermore, the diameter of the fixing ring 2 is 0.95 times the diameter of the first circular hole 11, the size of the second circular hole 12 is 1.1 times the diameter of the round rod 3, and the size of the lock cap 7 is 3 times the diameter of the second circular hole 12. Therefore, after the threaded rod 5 is threadedly connected with the locking nut 8, the round rod 3 and the compression spring 4 are inserted into the cavity of the lock shell 6. At this time, the compression spring 4 will be in a state of initial compression, so that the compression spring 4 will push the fixing ring 2 to drive the bolt 1 to extend out of the lock shell 6, thereby realizing the insertion of the hole of the movable part and realizing the locking effect. When the device needs to be unlocked, the lock cap 7 is held and pulled to move away from the lock shell 6, and the lock cap 7 drives The locking nut 8 drives the threaded rod 5, the threaded rod 5 drives the round rod 3, the round rod 3 drives the fixing ring 2, and the fixing ring 2 drives the locking block 9 and the latch 1 to move synchronously at the same time. When the fixing ring 2 moves, the compression spring 4 is continuously compressed. When the fixing ring 2 drives the fixing ring 2 to the position of the limiting hole, the locking cap 7 is rotated to make the locking cap 7 drive the locking block 9 to rotate through the fixing ring 2. The locking block 9 is inserted into the limiting hole. The restoring force of the compression spring 4 pushes the fixing ring 2, but the fixing ring 2 cannot move under the joint action of the locking block 9 and the limiting hole, and the spring pin is kept in an unlocked state, so that it is convenient for one person to unlock multiple spring pins of the movable parts.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lockable spring pin, comprising a latch pin (1), one end of the latch pin (1) being provided with a fixing ring (2) for driving the latch pin (1) to move, one side of the fixing ring (2) being provided with a compression spring (4) for pushing the fixing ring (2) to move, and a lock housing (6) for storing the compression spring (4) being provided outside the compression spring (4), characterized in that: A locking block (9) for locking the position of the fixing ring (2) is arranged at the top of the fixing ring (2), a locking hole (10) for moving the locking block (9) is opened at the top of the lock shell (6), a locking cap (7) for driving the bolt (1) to move is arranged on one side of the lock shell (6), and a connecting component for connecting with the bolt (1) is arranged on one side of the lock cap (7).

2. A lockable spring pin according to claim 1, characterized in that: The fixing ring (2) is sleeved on the outer wall of one end of the latch pin (1); the connecting assembly comprises a round rod (3) and a threaded rod (5); one end of the round rod (3) is fixedly connected to one end of the latch pin (1); the other end of the round rod (3) is fixedly connected to one end of the threaded rod (5); and one side of the lock cap (7) is provided with an insertion hole for inserting the threaded rod (5).

3. A lockable spring pin according to claim 2, characterized in that: A locking nut (8) is fixedly connected to the inside of the insertion hole, and the threaded rod (5) is threadedly inserted and connected to the inside of the locking nut (8).

4. A lockable spring pin according to claim 2, characterized in that: A cavity is provided inside the lock housing (6), a first circular hole (11) for movably inserting and connecting a fixing ring (2) is provided on one side of the inner wall of the cavity, a second circular hole (12) for movably inserting and connecting a round rod (3) is provided on the other side of the inner wall of the cavity, and the locking hole (10) is provided at the top of the lock housing (6).

5. A lockable spring pin according to claim 1, characterized in that: The locking hole (10) is L-shaped.

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