Split type dustproof and anti-drop locking mechanism

Abstract

The utility model relates to a battery exchange vehicle technical field discloses a split type dustproof anti -drop locking mechanism, it includes shell body (1) and inner lock body (2), still include the battery box (3) of being located shell body (1) top, inner lock body (2) drive locking bolt (4) rotation and with battery box (3) compression in shell body (1) and locking bolt (4) between locking. The present application adopts split type dustproof anti -drop structure, can effectively avoid external silt, dust to enter locking mechanism inside, when unlocking appears the failure, effectively avoid bolt to separate locking mechanism ontology, cause locking mechanism damage and box structure damage, in addition, after locking, effectively avoid the situation that the external impact leads to the decrease of screw thread locking force, finally leads to the decrease of locking mechanism fixing capacity.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping vehicle technology, and in particular to a split-type dustproof and anti-detachment locking mechanism. Background Technology

[0002] With increasingly frequent domestic and international exchanges and trade, the transportation industry is developing rapidly, including the transport of large and heavy-duty containers. Consequently, various parties have developed bottom-fixing structures for large battery packs to facilitate quick and easy securing and releasing during transport. Therefore, developing smaller, force-free mechanical locking mechanisms better meets the increasingly complex fixing requirements. As shown in the figure below, multiple distributed locking mechanisms effectively achieve stable fixing of the battery pack.

[0003] However, due to the inconsistency in working environments, the dustproof and sandproof functions of locking mechanisms become increasingly important under harsh working conditions. Current mechanical locking mechanisms have structural flaws, with exposed threads during engagement and disengagement. This fails to prevent dust, sand, and other contaminants from contacting the threads, leading to dirt accumulation, rust, and other problems. Ultimately, this results in rapid overall failure. Furthermore, under prolonged high and low temperature cycles and immersion in sand, these mechanisms are prone to deformation and failure, allowing dust, sand, and other impurities to enter the locking mechanism and cause overall structural failure.

[0004] Therefore, it is imperative to design a locking mechanism that can effectively prevent dust in harsh working environments and effectively prevent loosening and disengagement under transmission equipment failure conditions. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a split-type dustproof and anti-detachment locking mechanism.

[0006] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0007] A split-type dustproof and anti-detachment locking mechanism includes an outer shell and an inner lock body, and a battery box located above the outer shell. The inner lock body is located inside the outer shell and includes a locking bolt that cooperates with the inner lock body. The end of the locking bolt extends above the outer shell and the battery box. The inner lock body drives the locking bolt to rotate and presses the battery box between the outer shell and the locking bolt to lock it.

[0008] Preferably, the upper end of the outer casing is provided with a sealing gasket, which has a hole that mates with the locking bolt. The sealing gasket is fixed to the outer casing with glue.

[0009] Preferably, the inner lock body includes an anti-disengagement guide block, which has a guide groove, and the locking bolt has a pin that mates with the guide groove.

[0010] Preferably, the guide groove is a spiral groove, and a plug is installed on the upper part of the guide groove.

[0011] Preferably, the inner lock body also includes a nut sleeve and a nut sleeve limiting block. The nut sleeve is threadedly engaged with the locking bolt and is located at the lower part of the outer shell. The nut sleeve limiting block is installed below the nut sleeve and is connected to the nut sleeve by a spring. The tooling pushes the nut sleeve limiting block upward and drives the nut sleeve to rotate, which in turn drives the locking bolt to rotate, thereby achieving locking and unlocking.

[0012] Preferably, the outer casing is also fitted with a limiting ring and a retaining ring. The retaining ring is located at the lower end of the outer casing, and the limiting ring is fixed above the retaining ring. The upper surface of the limiting ring engages with the lower surface of the nut sleeve limiting block and restricts the rotation of the nut sleeve limiting block.

[0013] Preferably, an anti-wear washer is installed between the nut sleeve and the anti-loosening guide block; an anti-wear ring that contacts and mates with the inner wall of the outer shell is fixed on the outer ring surface of the nut sleeve.

[0014] This utility model, by adopting the above technical solutions, has significant technical effects: the application adopts a split dustproof and anti-detachment structure, which can effectively prevent external mud and dust from entering the locking mechanism and affecting the normal locking and unlocking operation of the locking mechanism; in the event of a failure in unlocking, it effectively prevents the bolts from coming off the locking mechanism body, causing damage to the locking mechanism and the box structure; in addition, after locking, it effectively prevents the thread locking force from decreasing due to external impact, which would ultimately reduce the fixing capacity of the locking mechanism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is a structural schematic diagram of the inner lock body and locking bolt of this utility model.

[0018] Figure 4 This is a cross-sectional view of the inner lock body and locking bolt of this utility model.

[0019] The parts referred to by the numbers in the attached diagram are as follows: 1—outer shell, 2—inner lock body, 3—battery box, 4—locking bolt, 11—sealing gasket, 21—anti-loosening guide block, 211—guide groove, 2111—plug pin, 22—nut sleeve, 221—anti-wear gasket, 222—anti-wear ring, 23—nut sleeve limiting block, 24—spring, 25—limiting ring, 26—circlip, 211—guide groove, 41—pin. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Example 1

[0021] A split-type dustproof and anti-detachment locking mechanism, as shown in the figure, includes an outer shell 1 and an inner lock body 2, and a battery box 3 located above the outer shell 1. The inner lock body 2 is located inside the outer shell 1, and a locking bolt 4 that cooperates with the inner lock body 2 is also included. The end of the locking bolt 4 extends above the outer shell 1 and the battery box 3. The inner lock body 2 drives the locking bolt 4 to rotate and presses the battery box 3 between the outer shell 1 and the locking bolt 4 for locking. Example 2

[0022] Similar to Embodiment 1, except that the upper end of the outer shell 1 is provided with a sealing gasket 11, and the sealing gasket 11 is provided with a hole that mates with the locking bolt 4. The sealing gasket 11 is fixed to the outer shell 1 with glue. Example 3

[0023] Similar to Embodiment 1, except that the inner lock body 2 includes an anti-disengagement guide block 21, the anti-disengagement guide block 21 is provided with a guide groove 211, and the locking bolt 4 is provided with a pin 41 that cooperates with the guide groove 211.

[0024] The guide groove 211 is a spiral groove, and a plug pin 2111 is installed on the upper part of the guide groove 211. Example 4

[0025] Similar to Embodiment 1, the inner lock body 2 also includes a nut sleeve 22 and a nut sleeve limiting block 23. The nut sleeve 22 is threadedly engaged with the locking bolt 4 and is located at the lower part of the outer shell 1. The nut sleeve limiting block 23 is installed below the nut sleeve 22 and is connected to the nut sleeve 22 by a spring 24. The tooling pushes the nut sleeve limiting block 23 upward and drives the nut sleeve 22 to rotate, which in turn drives the locking bolt 4 to rotate, thereby achieving locking and unlocking.

[0026] The outer casing 1 is also fixedly fitted with a limiting ring 25 and a retaining spring 26. The retaining spring 26 is located at the lower end of the outer casing 1, and the limiting ring 25 is fixed above the retaining spring 26. The upper surface of the limiting ring 25 engages with the lower surface of the nut sleeve limiting block 23 and restricts the rotation of the nut sleeve limiting block 23. When no external force pushes up the nut sleeve limiting block 23, the nut sleeve limiting block 23 is pressed against the limiting ring 25 by the force of the spring 24 and cannot rotate, thus preventing the locking bolt 4 from rotating. Example 5

[0027] Similar to Example 1, except that an anti-wear pad 221 is installed between the nut sleeve 22 and the anti-loosening guide block 21; and an anti-wear ring 222 that contacts and fits with the inner wall surface of the outer shell 1 is fixed on the outer ring surface of the nut sleeve 22.

[0028] The sealing gasket 11, the dustproof outer body 1, and the internal anti-wear ring 222 can isolate the internal threads of the locking mechanism from the external environment, effectively preventing fine particles such as mud and dust from entering the locking mechanism, preventing thread damage, and affecting the effective operation of the threads.

[0029] When the locking mechanism is locked, the lower tooling pushes the nut limit block 23 upward, causing the nut limit block 23 and the limit ring 25 gear to separate. Then the tooling drives the nut sleeve 22 to rotate clockwise, causing the locking bolt 4 to rotate in the same direction. However, the pin 41 of the locking bolt 4 is affected by the spiral guiding structure of the anti-loosening guide block 21, which restricts the locking bolt 4 from gradually moving downward, i.e., entering the locking state. After the locking bolt 4 rotates 90°, the pin 41 is affected by the limiting plug on the guide groove 211, and the locking bolt 4 finally moves vertically downward, ultimately pressing the battery box 3 between the locking bolt 4 and the outer shell 1. The force on the outer shell 1 is transmitted vertically downward to the flange surface of the anti-loosening guide block 21, and finally to the plane of the nut sleeve 22. By increasing the rotational torque of the nut sleeve 22, the desired corresponding locking force is achieved. At this time, the lower tooling descends and leaves the nut sleeve 22. Because there is gear meshing between the nut limiting block 23 and the limiting ring 25, after the teeth mesh, the rotation of the nut sleeve 22 will be restricted, preventing the thread locking force from loosening due to external factors hitting the nut sleeve 22, which would ultimately affect the fixing ability of the locking mechanism.

[0030] When the locking structure is unlocked, the lower tooling pushes the nut limiting block 23 upward, separating the nut limiting block 23 from the gear of the limiting ring 25. Then, the tooling drives the nut sleeve 22 to rotate counterclockwise. The pin 41 of the locking bolt 4 is restricted by the anti-detachment guide block 22 and cannot follow the rotation, but can only move up and down. At this time, the head of the locking bolt 4 leaves the housing structure 3, and the pin 41 of the locking bolt 4 is restricted by the spiral guide groove 211 of the anti-detachment guide block 22. After rotating 90°, it returns to the loosened state. At this time, the entire unlocking process of the locking structure is completed, and the battery housing 3 structure can be smoothly released from the locking mechanism. When manual unlocking is misjudged or the machine unlocking malfunctions, the nut sleeve 22 continues to rotate counterclockwise. At this time, the pin 41 of the locking bolt 4 will be restricted by the upper structure of the anti-detachment guide block 22, forcing the locking bolt 4 to stop moving upward. The locking bolt 4 stops when it reaches the maximum extension position, preventing the locking structure from falling off, being damaged, or the housing structure from being damaged.

[0031] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A split type dustproof and anti-drop locking mechanism, characterized in that: It includes an outer shell (1) and an inner lock body (2), and also includes a battery box (3) located above the outer shell (1). The inner lock body (2) is located inside the outer shell (1), and also includes a locking bolt (4) that cooperates with the inner lock body (2). The end of the locking bolt (4) extends above the outer shell (1) and the battery box (3). The inner lock body (2) drives the locking bolt (4) to rotate and presses the battery box (3) between the outer shell (1) and the locking bolt (4) to lock it.

2. The split type dustproof and anti-drop locking mechanism according to claim 1, characterized in that: The upper end of the outer shell (1) is provided with a sealing gasket (11), and the sealing gasket (11) is provided with a hole that mates with the locking bolt (4). The sealing gasket (11) is fixed to the outer shell (1) with glue.

3. The split type dustproof and anti-drop locking mechanism according to claim 1, characterized in that: The inner lock body (2) includes an anti-disengagement guide block (21), the anti-disengagement guide block (21) is provided with a guide groove (211), and the locking bolt (4) is provided with a pin (41) that cooperates with the guide groove (211).

4. The split type dustproof and anti-drop locking mechanism according to claim 3, characterized in that: The guide groove (211) is a spiral groove, and a plug (2111) is installed on the upper part of the guide groove (211).

5. The split type dustproof and anti-drop locking mechanism according to claim 1, characterized in that: The inner lock body (2) also includes a nut sleeve (22) and a nut sleeve limiting block (23). The nut sleeve (22) is threadedly engaged with the locking bolt (4) and located at the lower part of the outer shell (1). The nut sleeve limiting block (23) is installed below the nut sleeve (22) and connected to the nut sleeve (22) by a spring (24). The tooling pushes the nut sleeve limiting block (23) upward and drives the nut sleeve (22) to rotate, which in turn drives the locking bolt (4) to rotate, thereby achieving locking and unlocking.

6. The split type dustproof and anti-drop locking mechanism according to claim 5, characterized in that: The outer shell (1) is also fixed with a limiting ring (25) and a retaining ring (26). The retaining ring (26) is located at the lower end of the outer shell (1). The limiting ring (25) is fixed above the retaining ring (26). The upper surface of the limiting ring (25) engages with the lower surface of the nut sleeve limiting block (23) and restricts the rotation of the nut sleeve limiting block (23). When no external force pushes up the nut sleeve limiting block (23), the nut sleeve limiting block (23) is pressed against the limiting ring (25) by the force of the spring (24) and cannot rotate, thus preventing the locking bolt (4) from rotating.

7. The split type dustproof and anti-drop locking mechanism according to claim 5, characterized in that: An anti-wear pad (221) is installed between the nut sleeve (22) and the anti-loosening guide block (21); an anti-wear ring (222) that contacts and fits with the inner wall surface of the outer shell (1) is fixed on the outer ring surface of the nut sleeve (22).

Images