Integrated lock pin

Abstract

The utility model relates to the field of trailer connecting devices, and discloses an integrated lock pin which comprises a shell, a lock body is fixedly connected to the interior of the right end of the shell, a lock cylinder is fixedly connected to the interior of the right end of the lock body, a key is inserted into the interior of the right end of the lock cylinder, and a first connecting rod is fixedly connected to the top of the left end of the lock cylinder. An arc-shaped plate is arranged in the left end of the lock body, and a clamping groove is formed in the top of the arc-shaped plate. Through the arrangement of the connecting rod, the clamping groove, the clamp, the supporting rod, the spring and the clamping pin, the problems that the trailer and a tractor are suddenly disconnected, the trailer is out of control, and serious safety threats are caused to surrounding vehicles and pedestrians can be solved, and the clamp acts on the connecting ring and the fixing ring; therefore, the connection process is effectively and greatly simplified, the convenience and efficiency of operation are improved, and the tedious degree of operation is reduced.

Description

Technical Field

[0001] The utility model relates to the field of trailer connection devices, in particular to an integrated locking pin. Background Art

[0002] Integrated locking pins are widely used in various trailer connections, including car trailers, container trailers, and agricultural trailers. Whether in road transportation, construction, or agricultural production, integrated locking pins provide reliable protection for trailer connection.

[0003] During the driving of the trailer, the operator needs to frequently check whether the connection device is firm, which increases the complexity and time cost of the operation. The trailer connection device may gradually loosen due to road bumps, acceleration, deceleration, etc., which may cause the connection between the trailer and the tractor to be suddenly disconnected, causing the trailer to lose control and pose a serious safety threat to surrounding vehicles and pedestrians. Utility Model Content

[0004] The main purpose of the utility model is to provide an integrated locking pin, which can effectively solve the problem that the connection between the trailer and the tractor is suddenly disconnected, causing the trailer to lose control and posing a serious safety threat to surrounding vehicles and pedestrians.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an integrated lock pin, including an outer shell, a lock body fixedly connected to the inside of the right end of the outer shell, a lock core fixedly connected to the inside of the right end of the lock body, a key inserted into the inside of the right end of the lock core, a first connecting rod fixedly connected to the top of the left end of the lock core, an arc-shaped plate provided inside the left end of the lock body, a clamping groove provided inside the top of the arc-shaped plate, the left end of the first connecting rod fixedly connected to the inside of the clamping groove, and the left side wall of the arc-shaped plate fixedly connected to the connecting plate.

[0006] Furthermore, a clip is fixedly connected to the top of the left side wall of the connecting plate, a placement slot is opened at the right end of the internal hole slot of the shell, support rods are provided inside the internal hole slot of the shell and the placement slot, and protrusions are fixedly connected to the upper and lower sides of the left end of the shell.

[0007] Furthermore, a connecting ring is fixedly connected to the outer side of the right end of the support rod, and a fixing ring is fixedly connected to the right end of the support rod.

[0008] Furthermore, the fixing ring is arranged on the left side of the connecting ring, and the connecting ring and the fixing ring are both arranged on the left and right sides of the clamp.

[0009] Furthermore, a spring is provided on the outside of the right end of the support rod, the left end of the spring is fixedly connected to the left side of the inside of the placement slot, and the right end of the spring is provided on the left side wall of the connecting ring.

[0010] Furthermore, a latch is fixedly connected to the outer side of the left end of the support rod, and the latch is corresponding to the two protrusions.

[0011] Furthermore, a clamping ring is fixedly connected to the outer side of the right end of the shell, a second connecting rod is fixedly connected to the rear side of the clamping ring, and a cap is fixedly connected to the other side of the second connecting rod.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention, through its connecting rod, clamping groove, clamp, support rod, spring, and latch, can solve the problem of sudden disconnection between a trailer and a towing vehicle, causing the trailer to lose control and pose a serious safety threat to surrounding vehicles and pedestrians. The clamp acts on the connecting ring and the fixing ring: when the clamp moves to the left, it contacts the connecting ring and the fixing ring outside the right end of the support rod. Because the connecting ring and the fixing ring are arranged on the left and right sides of the clamp, the clamp pushes the connecting ring and the fixing ring to the left; if the clamp moves to the right, it relaxes its action on the connecting ring and the fixing ring, allowing the fixing ring to be removed from the right side wall of the clamp, thereby effectively simplifying the connection process, improving the convenience and efficiency of operation, and reducing the complexity of operation.

[0014] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of the integrated lock pin proposed in the present utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the internal shell of the integrated lock pin proposed in the present utility model;

[0017] Figure 3 This is a structural diagram of the lock core of the integrated lock pin proposed in the present utility model;

[0018] Figure 4 This is a structural diagram of the connecting plate of the integrated lock pin proposed in the present utility model;

[0019] Figure 5 This is a structural diagram of the support rod of the integrated lock pin proposed in the present utility model;

[0020] Figure 6 This is a diagram showing the latch structure of the integrated lock pin proposed in the present invention;

[0021] Figure 7 This is a schematic diagram of unlocking the integrated lock pin proposed in the present invention;

[0022] Figure 8This is a spring structure diagram of the integrated lock pin proposed in the utility model.

[0023] Legend:

[0024] 1. Outer shell; 2. Lock body; 3. Lock core; 4. Key; 5. First connecting rod; 6. Arc plate; 7. Clamping groove; 8. Connecting plate; 9. Clip; 10. Placement groove; 11. Support rod; 12. Bump; 13. Connecting ring; 14. Fixing ring; 15. Spring; 16. Clamping tip; 17. Snap ring; 18. Second connecting rod; 19. Cover cap. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 - Figure 6 As shown: an integrated lock pin, including a shell 1, a lock body 2 is fixedly connected to the right end of the shell 1, and the lock body 2 is supported and protected on the outside by fixing the lock body 2 to the right end of the shell 1. A lock cylinder 3 is fixedly connected to the right end of the lock cylinder 3, and a key 4 is inserted into the right end of the lock cylinder 3. The key 4 is inserted into the right keyhole of the lock cylinder 3 to drive the lock cylinder 3 to rotate, so as to unlock and lock the internal device. A first connecting rod 5 is fixedly connected to the top of the left end of the lock cylinder 3, and an arc plate 6 is provided inside the left end of the lock body 2. A clamping groove 7 is opened inside the top of the arc plate 6. The left end of the first connecting rod 5 is fixedly connected to the inside of the clamping groove 7, and is connected to the clamping groove 7 inside the arc plate 6 by the first connecting rod 5. When unlocked, The first connecting rod 5 is used to drive the arc plate 6 to rotate at the temporal part of the lock body 2. The left side wall of the arc plate 6 is fixedly connected to a connecting plate 8. The top of the left side wall of the connecting plate 8 is fixedly connected to a clip 9. The clip 9 is fixed to the left side wall of the arc plate 6 through the provided connecting plate 8, driving the clip 9 to fix and unlock the support rod 11. A placement slot 10 is provided at the right end of the hole groove inside the shell 1. The placement slot 10 is provided to support the spring 15 on the outside. A support rod 11 is provided inside the hole groove and the placement slot 10 inside the shell 1. The support rod 11 is rotated and slid inside the hole groove and the placement slot 10 of the shell 1 to connect with the left and right end devices and perform a transmission effect. The upper and lower sides of the left end of the shell 1 are fixedly connected with protrusions 12.

[0027] like Figure 1 - Figure 8As shown, a connecting ring 13 is fixedly connected to the outer side of the right end of the support rod 11, and a fixing ring 14 is fixedly connected to the right end of the support rod 11. The fixing ring 14 is arranged on the left side of the connecting ring 13, and is fixed to the right end of the support rod 11 by the setting of the connecting ring 13 and the fixing ring 14 to connect with the device on the right side. The connecting ring 13 and the fixing ring 14 are both arranged on the left and right sides of the clamp 9. The setting of the connecting ring 13 and the fixing ring 14 on the left and right sides of the clamp 9 prevents the support rod 11 from rotating and sliding before unlocking.

[0028] like Figure 1 - Figure 8 As shown, a spring 15 is provided on the outside of the right end of the support rod 11, the left end of the spring 15 is fixedly connected to the left side of the inside of the placement groove 10, and the right end of the spring 15 is provided on the left side wall of the connecting ring 13. The left end of the spring 15 is fixedly connected to the left side wall of the placement groove 10 and the right side of the spring 15 is fixed to the left side wall fixing ring 14 to support and fix the spring 15, and the spring 15 is used to drive the card 16 to rebound and reset.

[0029] like Figure 1 - Figure 8 As shown, the outer side of the left end of the support rod 11 is fixedly connected with a card slightly 16. When unlocking, the card slightly 16 is pulled, and the fixing ring 14 on the right end of the support rod 11 is driven to disengage from the right side of the clip 9, which can drive the support rod 11 to slide to the left, thereby driving the connecting ring 13 on the right side of the support rod 11 to squeeze the spring 15. In addition, when the card slightly 16 is rotated, the support rod 11 on the right end of the card slightly 16 will rotate inside the shell 1 to adjust the position of the card slightly 16. After adjustment, the spring 15 will rebound, and the fixing ring 14 will contact the clip 9 again. At this time, the key 4 is inserted into the interior of the lock cylinder 3 again and rotated to the right to lock, and the adjusted card slightly 16 is fixed to prevent the adjusted card slightly 16 from being reset. The latch 16 is positioned in a corresponding position to the two protrusions 12. The protrusions 12 are placed with the latch 16 before adjustment to prevent the latch 16 from rotating and sliding before adjustment. A snap ring 17 is fixedly connected to the outer side of the right end of the shell 1, and a second connecting rod 18 is fixedly connected to the rear side of the snap ring 17. A cap 19 is fixed to the other side of the second connecting rod 18. The snap ring 17 is fixed to the outer side of the right end of the shell 1 to fix the cap 19 on the rear side to the outer side of the shell 1. In addition, the cap 19 is connected through the second connecting rod 18 on the snap ring 17, and the lock body 2 and the lock cylinder 3 inside the shell 1 are covered by the cap 19 to prevent impurities, dust, etc. from entering the interior of the lock body 2 and the lock cylinder 3.

[0030] It should be noted that the present invention is an integrated lock pin. When in the initial unlocked state, the key 4 is not inserted into the lock cylinder 3. At this point, the support rod 11 is located in the internal slot of the housing 1, the spring 15 is in a natural or slightly compressed state, the connecting ring 13 and the fixing ring 14 are located near the left side of the placement slot 10, and the latch 16 is located outside the left end of the housing 1 and is not locked with the two protrusions 12. The lock cylinder 3 drives the curved plate 6 to move: because the left end of the first connecting rod 5 is fixed in the clamping groove 7 inside the top of the curved plate 6, when the lock cylinder 3 is activated, the first connecting rod 5 drives the curved plate 6 to move. The curved plate 6 moves left or right inside the left end of the lock body 2.

[0031] The curved plate 6 pushes the connecting plate 8 and the clamp 9: the left side wall of the curved plate 6 is fixedly connected to the connecting plate 8. When the curved plate 6 moves, it drives the connecting plate 8 to move together. The clamp 9 fixedly connected to the top of the left side wall of the connecting plate 8 also moves accordingly. The clamp 9 acts on the connecting ring 13 and the fixing ring 14: when the clamp 9 moves to the left, it contacts the connecting ring 13 and the fixing ring 14 on the outside of the right end of the support rod 11. Because the connecting ring 13 and the fixing ring 14 are arranged on the left and right sides of the clamp 9, the clamp 9 pushes the connecting ring 13 and the fixing ring 14 to move to the left; if the clamp 9 moves to the right, it relaxes its action on the connecting ring 13 and the fixing ring 14, and the fixing ring 14 can be removed from the right side wall of the clamp 9.

[0032] Movement of support rod 11 achieves locking or unlocking: When clamp 9 pushes connecting ring 13 and retaining ring 14 leftward, connecting ring 13 drives support rod 11 leftward. Retaining ring 14 on support rod 11 also moves leftward, further compressing spring 15. Latch 16 on the outer left end of support rod 11 also moves leftward. When latch 16 contacts and locks with bumps 12 on the upper and lower left ends of housing 1, locking the latch. On the contrary, when the clamp 9 moves to the right and relaxes the effect on the connecting ring 13 and the fixing ring 14, under the elastic restoring force of the spring 15, the support rod 11 rotates inside the housing 1, driving the card portion 16 on the left end to rotate and disengage from the protrusion 12 to adjust the position of the card portion 16. In addition, after adjusting the fixed position, the key 4 is inserted into the inside of the lock cylinder 3 again to lock it, so as to lock the adjusted position of the spring 15 to prevent the spring 15 and the support rod 11 from rotating and failing to fix the external equipment.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An integrated locking pin, comprising a housing (1), characterized in that: The right end of the shell (1) is fixedly connected to the lock body (2), the right end of the lock body (2) is fixedly connected to the lock core (3), the right end of the lock core (3) is inserted into the inside of the key (4), the top of the left end of the lock core (3) is fixedly connected to the first connecting rod (5), the left end of the lock body (2) is provided with an arc plate (6), the top of the arc plate (6) is provided with a clamping groove (7), the left end of the first connecting rod (5) is fixedly connected to the inside of the clamping groove (7), and the left side wall of the arc plate (6) is fixedly connected to the connecting plate (8).

2. The integrated lock pin according to claim 1, wherein: A clamp (9) is fixedly connected to the top of the left side wall of the connecting plate (8); a placement slot (10) is provided at the right end of the internal hole slot of the shell (1); a support rod (11) is provided inside the internal hole slot of the shell (1) and the placement slot (10); and protrusions (12) are fixedly connected to the upper and lower sides of the left end of the shell (1).

3. The integrated lock pin according to claim 2, wherein: A connecting ring (13) is fixedly connected to the outer side of the right end of the support rod (11), and a fixing ring (14) is fixedly connected to the right end of the support rod (11).

4. The integrated lock pin according to claim 3, wherein: The fixing ring (14) is arranged on the left side of the connecting ring (13), and the connecting ring (13) and the fixing ring (14) are both arranged on the left and right sides of the clamp (9).

5. The integrated lock pin according to claim 3, wherein: A spring (15) is provided on the outside of the right end of the support rod (11), the left end of the spring (15) is fixedly connected to the left side of the interior of the placement groove (10), and the right end of the spring (15) is provided on the left side wall of the connecting ring (13).

6. The integrated lock pin according to claim 3, wherein: A latch (16) is fixedly connected to the outer side of the left end of the support rod (11), and the latch (16) is correspondingly arranged to the two protrusions (12).

7. The integrated lock pin according to claim 1, wherein: A snap ring (17) is fixedly connected to the outer side of the right end of the housing (1), a second connecting rod (18) is fixedly connected to the rear side of the snap ring (17), and a cover cap (19) is fixedly connected to the other side of the second connecting rod (18).

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