Anti-falling locking mechanism

Abstract

The utility model discloses an anti-falling locking mechanism which comprises a base, a sliding sleeve fixedly arranged on the base, a locking pin which is arranged in the sliding sleeve in a sliding mode and can extend out of the sliding sleeve, a side installation plate vertically and fixedly arranged on the side edge of the sliding sleeve, and an air cylinder fixedly installed on the side installation plate. A through hole through which a telescopic rod of the air cylinder can penetrate is formed in the side mounting plate, the telescopic rod extends into the sliding sleeve and is connected with the tail part of the locking pin through a floating connecting shaft, and the telescopic rod is used for driving the locking pin to retract or extend out of the sliding sleeve; the telescopic rod is sleeved with a compression spring, one end of the compression spring elastically abuts against the tail end of the locking pin, and the other end of the compression spring elastically abuts against the end face of the air cylinder. After fixation is completed, the locking pin is in a stretching-out state, and even if air supply of the air cylinder is abnormal (air supply is cut off due to the fact that an air source of a vehicle air storage tank is abnormal, and an air pipe is damaged and the like), the compression spring abuts against the locking pin outwards, the locking pin can be prevented from returning into the sliding sleeve, and the anti-disengaging protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to a locking mechanism, more specifically, to an anti-dropping locking mechanism. Background Art

[0002] After the battery swapping operation, the new energy heavy truck battery swapping system box needs to be fixed and locked with the battery swapping system box using a locking mechanism. The existing locking mechanism usually uses a cylinder to push the locking pin for locking. After the cylinder is no longer supplied with air, the locking pin is prone to gradually detach from the locked part during long-term use, causing the battery swapping assembly to loosen, posing a certain safety risk. Utility Model Content

[0003] The utility model aims at the above-mentioned defects of the prior art and provides an anti-drop locking mechanism.

[0004] The technical solution adopted by the utility model to solve the technical problem is: construct an anti-dropping locking mechanism, the locking mechanism comprises a base, a sliding sleeve fixed on the base, a locking pin slidably arranged in the sliding sleeve and extendable out of the sliding sleeve, a side mounting plate vertically fixed on the side of the sliding sleeve, and a cylinder fixedly mounted on the side mounting plate, the side mounting plate is provided with a through hole for the telescopic rod of the cylinder to pass through, the telescopic rod extends into the sliding sleeve and is connected to the tail of the locking pin through a floating connecting shaft, and the telescopic rod is used to drive the locking pin to retract or extend out of the sliding sleeve;

[0005] A compression spring is sleeved on the telescopic rod, one end of the compression spring elastically abuts against the tail end of the locking pin, and the other end of the compression spring elastically abuts against the end surface of the cylinder.

[0006] In the anti-drop locking mechanism of the utility model, the base is provided with a plurality of fixing holes for fixing the base.

[0007] In the anti-drop locking mechanism of the utility model, the sliding sleeve comprises a graphite brass bushing sleeved outside the locking pin, and a steel sleeve sleeved outside the graphite brass bushing.

[0008] In the anti-drop locking mechanism described in the utility model, a first end cover is fixedly provided at the first end portion of the graphite brass bushing and the steel sleeve, and a second end cover is fixedly provided at the second end portion of the graphite brass bushing and the steel sleeve. The first end cover is provided with an extension hole for the locking pin to pass through, and the second end cover is provided with an insertion hole for the telescopic rod to pass through.

[0009] In the anti-drop locking mechanism described in the utility model, the base is fixedly connected to the bottom of the steel sleeve via a support member, and a protective cover for covering the telescopic rod and the compression spring is fixedly arranged between the second end cover and the side mounting plate.

[0010] The implementation of the anti-slip locking mechanism of the utility model has the following beneficial effects: when using the anti-slip locking mechanism of the utility model, after the battery swap longitudinal system bracket is installed on the vehicle beam, the locking mechanism air source is connected, and after the cylinder is ventilated, the initial state of the locking pin is the extended state, and the solenoid valve control unit needs to control the cylinder to move so that the locking pin returns. At this time, the compression spring is compressed. After the battery box body is replaced in the battery swap station, the electrical control system gives a signal to the solenoid valve control unit, the locking mechanism cylinder moves, and the locking pin extends to fix and lock the battery box body on the bracket. After the fixation is completed, even if the cylinder gas supply is abnormal (the gas source of the vehicle gas tank is abnormal, the air pipe is damaged, etc.), the compression spring pushes the locking pin outward to prevent the locking pin from returning to the sliding sleeve, thereby playing an anti-slip protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0012] Figure 1 It is a schematic cross-sectional structure diagram of the anti-dropping locking mechanism of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the anti-dropping locking mechanism of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 , 2 As shown, in the first embodiment of the anti-slip locking mechanism of the utility model, the locking mechanism 10 includes a base 11, a sliding sleeve 12 fixed on the base 11, a locking pin 13 slidably arranged in the sliding sleeve 12 and extendable to the outside of the sliding sleeve 12, a side mounting plate 14 vertically fixed on the side of the sliding sleeve 12, and a cylinder 15 fixedly mounted on the side mounting plate 14. The side mounting plate 14 is provided with a through hole 17 for the telescopic rod 16 of the cylinder 15 to pass through. The telescopic rod 16 extends into the sliding sleeve 12 and is connected to the tail of the locking pin 13 through a floating connecting shaft 26. The telescopic rod 16 is used to drive the locking pin 13 to retract or extend out of the sliding sleeve 12.

[0016] A compression spring 18 is sleeved on the telescopic rod 16 . One end of the compression spring 18 elastically abuts against the tail end of the locking pin 13 , and the other end of the compression spring 18 elastically abuts against the cylinder 15 .

[0017] When using the anti-slip locking mechanism of the utility model, after the battery swap longitudinal system bracket is installed on the vehicle beam, the air source of the locking mechanism 10 is connected, and after the cylinder 15 is ventilated, the initial state of the locking pin 13 is the extended state, and the solenoid valve control unit needs to control the cylinder 15 to move so that the locking pin 13 returns. At this time, the compression spring 18 is compressed. After the battery box body performs the battery swap operation in the battery swap station, the electrical control system gives a signal to the solenoid valve control unit, the cylinder 15 of the locking mechanism 10 moves, and the locking pin 13 extends to fix and lock the battery box body on the bracket. After the fixation is completed, even if the gas supply of the cylinder 15 is abnormal (the gas supply of the vehicle gas tank is abnormal, the gas pipe is damaged, etc.), the compression spring 18 pushes the locking pin 13 outward, which can prevent the locking pin 13 from returning to the sliding sleeve 12, and play an anti-slip protection effect.

[0018] In this embodiment, the telescopic rod 16 and the locking pin 13 are connected by the floating connecting shaft 26, so that the forces in other directions on the telescopic rod 16 of the cylinder 15 can be reduced, thereby avoiding damage to the cylinder 15.

[0019] In order to facilitate fixing of the locking mechanism 10 , the base 11 is provided with a plurality of fixing holes 19 for fixing the base 11 .

[0020] In this embodiment, the sliding sleeve 12 includes a graphite brass bushing 20 sleeved on the outside of the locking pin 13 , and a steel sleeve 21 sleeved on the outside of the graphite brass bushing 20 .

[0021] By providing the graphite brass bushing 20 , the friction between the locking pin 13 and the graphite brass bushing 20 can be reduced.

[0022] Furthermore, a first end cover 22 is fixedly provided at the first end portion of the graphite brass bushing 20 and the steel sleeve 21, and a second end cover 23 is fixedly provided at the second end portion of the graphite brass bushing 20 and the steel sleeve 21. The first end cover 22 is provided with an extension hole for the locking pin 13 to pass through, and the second end cover 23 is provided with an insertion hole for the telescopic rod 16 to pass through.

[0023] Specifically, the base 11 is fixedly connected to the bottom of the steel sleeve 21 via a support member 24 , and a protective cover 25 for covering the telescopic rod 16 and the compression spring 18 is fixedly provided between the second end cover 23 and the side mounting plate 14 .

[0024] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An anti-slip locking mechanism, characterized in that: The locking mechanism comprises a base, a sliding sleeve fixed on the base, a locking pin slidably arranged in the sliding sleeve and extendable out of the sliding sleeve, a side mounting plate vertically fixed on the side of the sliding sleeve, and a cylinder fixedly mounted on the side mounting plate, wherein the side mounting plate is provided with a through hole for a telescopic rod of the cylinder to pass through, the telescopic rod extends into the sliding sleeve and is connected to the tail of the locking pin through a floating connecting shaft, and the telescopic rod is used to drive the locking pin to retract or extend out of the sliding sleeve; A compression spring is sleeved on the telescopic rod, one end of the compression spring elastically abuts against the tail end of the locking pin, and the other end of the compression spring elastically abuts against the end surface of the cylinder.

2. The anti-drop locking mechanism according to claim 1, characterized in that: The base is provided with a plurality of fixing holes for fixing the base.

3. The anti-drop locking mechanism according to claim 1, characterized in that: The sliding sleeve comprises a graphite brass bushing sleeved outside the locking pin, and a steel sleeve sleeved outside the graphite brass bushing.

4. The anti-drop locking mechanism according to claim 3, characterized in that: The first end portion of the graphite brass bushing and the steel sleeve is fixedly provided with a first end cover, and the second end portion of the graphite brass bushing and the steel sleeve is fixedly provided with a second end cover. The first end cover is provided with an extension hole for the locking pin to pass through, and the second end cover is provided with an insertion hole for the telescopic rod to pass through.

5. The anti-drop locking mechanism according to claim 4, characterized in that: The base is fixedly connected to the bottom of the steel sleeve via a support member, and a protective cover for covering the telescopic rod and the compression spring is fixedly arranged between the second end cover and the side mounting plate.

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