A plug lock

Abstract

This utility model discloses a plug lock, including a plug sleeve with an opening and a sliding arm. The sliding arm has a first locking hole / slot, which, when multiple, are spaced apart along the length of the sliding arm. It also includes an adjusting sleeve with a groove / hole for the sliding arm to pass through, thereby adjusting the distance between the adjusting sleeve and the opening. The adjusting sleeve has a lock cylinder and a locking bolt controlled by the lock cylinder for locking or unlocking. The locking bolt passes through the side wall of the groove / hole and fits into the first locking hole / slot. This utility model has the advantages of high integration, compact structure, built-in locking device, and the ability to add a padlock for co-locking as needed, providing excellent security.

Description

Technical Field

[0001] This utility model relates to the field of locks, specifically to a plug lock. Background Technology

[0002] Plug locks are used to lock and protect power plugs (such as electric forklift batteries). Existing plug locks include a plug sleeve and a sliding arm connected to the plug sleeve and extending along the opening direction of the plug sleeve. Different sizes of plugs can be accommodated by setting an adjusting sleeve that can slide relative to the sliding arm. At the same time, padlock slots / holes are opened on both the sliding arm and the adjusting sleeve, and locking is achieved by inserting a padlock. The locking mechanism relies on a separate padlock, making integrated locking impossible. Furthermore, when the padlock is not in use, the adjusting sleeve slides freely relative to the sliding arm, making it prone to falling off or being lost. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a plug lock with a high degree of integration, compact structure, built-in locking device, and the ability to add padlocks as needed to achieve co-locking, and with good security.

[0004] To address the above problems, the following technical solution is provided: a plug lock, including a plug sleeve having an opening and a sliding arm, the sliding arm having a first locking hole / slot, wherein when there are multiple first locking holes / slots, they are spaced apart along the length of the sliding arm; it also includes an adjusting sleeve having a groove / hole for the sliding arm to pass through, thereby adjusting the distance between the adjusting sleeve and the opening, the adjusting sleeve having a lock cylinder and a locking tongue controlled by the lock cylinder for locking or unlocking, the locking tongue being inserted from the side wall of the groove / hole and adapted to the first locking hole / slot.

[0005] The present invention is further provided with a stop block outside the lock cylinder that is driven by the lock cylinder to rotate; when the stop block rotates to the rear of the bolt, it is used to restrict the bolt from retracting to prevent the bolt from retracting from the groove / hole.

[0006] The present invention is further provided that the locking tongue is provided with a positioning spring for pushing it into the slide / hole.

[0007] The present invention is further configured such that the front end of the latch is provided with an outer chamfer, and the end of the first locking hole / groove facing the latch is provided with an inner chamfer at its opening; after the latch is unlocked, the outer chamfer and the inner chamfer are adapted to each other by the sliding adjustment sleeve, which pushes the latch to retract and compresses the positioning spring to produce a step-like feel.

[0008] The present invention is further configured such that the inner wall of the groove / hole corresponding to the front end of the locking tongue of the adjusting sleeve is provided with a through top hole.

[0009] The present invention is further configured such that the adjusting sleeve is provided with one or more sets of padlock holes that penetrate the entire slide groove / hole; when there are multiple first locking holes / grooves, the locking tongue is adapted to one of the first locking holes / grooves and is aligned, and at least one set of padlock holes is aligned with another first locking hole / groove.

[0010] The present invention is further configured such that the sliding arm has a T-shaped cross-section and forms a horizontal rib and a vertical rib, and the first locking hole / slot is formed on the vertical rib; the sliding arm is connected to the side wall of the plug sleeve.

[0011] The present invention is further configured such that the cross-section of the groove / hole is T-shaped, and the end of the groove / hole away from the plug sleeve is provided with a support rib that abuts against the bottom surface of the horizontal rib plate.

[0012] The present invention is further provided that the lower end of the adjusting sleeve is provided with a latch extending toward the opening direction.

[0013] The beneficial effects of this utility model are: 1. The front end of the battery plug is placed inside the plug sleeve. The tail end of the battery plug is blocked by controlling the position of the adjusting sleeve on the sliding arm to prevent it from coming out of the plug sleeve. A lock cylinder and a lock tongue are set on the adjusting sleeve, and the lock tongue is used to lock by matching with the first locking hole / slot to realize the distance adjustment between the adjusting sleeve and the plug sleeve. This makes it have a built-in locking function, eliminating the complicated operation steps of traditional padlock locking. 2. When the lock cylinder rotates, it drives the stop block to rotate, so that it reaches or moves away from the rear of the bolt. When it is behind the bolt, it will block the bolt from retracting and provide a locking function for the bolt. 3. The outer chamfer and the inner chamfer are in a tapered fit. In the unlocked state, the bolt can be retracted by sliding the adjusting sleeve and re-entering the next first locking hole / slot under the action of the positioning spring, thus creating a step-like feel and effectively preventing the adjusting sleeve from sliding out and being lost. When the stop block is rotated to the rear of the bolt, it provides rigid support to the rear of the bolt to limit its retraction. 4. In special circumstances (such as failure of the outer and inner chamfers) that cause the bolt to be unable to retract in the unlocked state, the bolt can be pushed away from the first locking hole / slot by inserting a rod-shaped object; 5. It can be used with one or more padlock holes to achieve a common lock. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0016] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the locked state of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the unlocked state of this utility model.

[0019] The labels in the diagram have the following meanings: 10-Plug sleeve; 11-Opening; 12-Sliding arm; 121-First locking hole / slot; 122-Inner chamfer; 123-Horizontal rib; 1231-Rigid rib; 124-Vertical rib; 20-Adjusting sleeve; 21-Sliding groove / hole; 211-Top hole; 212-Padlock hole; 22-Lock cylinder; 221-Stop block; 23-Lock tongue; 231-Positioning spring; 232-Outer chamfer; 24-Support rib; 25-Claw. Detailed Implementation

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0021] refer to Figures 1 to 5 ,like Figures 1 to 5 The plug lock shown includes a plug sleeve 10, which has an opening 11 and a sliding arm 12. The sliding arm 12 has a first locking hole / slot 121, which is arranged at intervals along the length of the sliding arm 12 when there are multiple first locking holes / slots 121. It also includes an adjusting sleeve 20, which has a groove / hole 21 for the sliding arm 12 to pass through, thereby adjusting the distance between the adjusting sleeve 20 and the opening 11. The adjusting sleeve 20 has a lock cylinder 22 and a locking tongue 23 controlled by the lock cylinder 22 for locking or unlocking. The locking tongue 23 passes through the side wall of the groove / hole 21 and is adapted to the first locking hole / slot 121.

[0022] In the above structure, the front end of the battery plug (not shown in the figure) is placed inside the plug sleeve 10. The tail end of the battery plug (not shown in the figure) is blocked by controlling the position of the adjusting sleeve 20 on the sliding arm 12 to prevent it from coming out of the plug sleeve 10. A lock cylinder 22 and a lock tongue 23 are provided on the adjusting sleeve 20, and the lock tongue 23 is used to fit and lock with the first locking hole / slot 121 to realize the distance adjustment between the adjusting sleeve 20 and the plug sleeve 10. This makes it have a built-in locking function, eliminating the complicated operation steps of traditional padlock locking.

[0023] In this embodiment, the lock cylinder 22 is provided with a stop 221 that is driven to rotate by the lock cylinder 22; when the stop 221 rotates to the rear of the bolt 23, it is used to restrict the bolt 23 from retracting to prevent the bolt 23 from retracting from the slide / hole 21.

[0024] In the above structure, when the lock cylinder 22 rotates, it drives the stop block 221 to rotate, so that it reaches or leaves the rear of the bolt 23. When it is located behind the bolt 23, it will prevent the bolt 23 from retracting and provide a locking function for the bolt 23.

[0025] In this embodiment, the locking tongue 23 is provided with a positioning spring 231 for pushing it into the slide / hole 21.

[0026] In the above structure, the positioning spring 231 facilitates the latch 23 to pop out and enter the locking state or positioning state.

[0027] In this embodiment, the front end of the latch 23 is provided with an outer chamfer 232, and the opening of the first locking hole / groove 121 facing the latch 23 is provided with an inner chamfer 122. After the latch 23 is unlocked, the outer chamfer 232 and the inner chamfer 122 are adapted to each other by the sliding adjustment sleeve 20 to push the latch 23 to retract and compress the positioning spring 231, thereby producing a segmented feel.

[0028] In the above structure, the outer chamfer 232 and the inner chamfer 122 are in a tapered fit. In the unlocked state, the locking tongue 23 can be retracted by sliding the adjusting sleeve 20 and re-enter the next first locking hole / slot 121 under the action of the positioning spring 231, thus creating a step-like feel and effectively preventing the adjusting sleeve 20 from sliding out naturally and being lost. When the stop block 221 is rotated to the rear of the locking tongue 23, it provides rigid support to the rear of the locking tongue 23 to limit its retraction.

[0029] In this embodiment, the adjusting sleeve 20 has a through top hole 211 on the inner wall of the groove / hole 21 corresponding to the front end of the locking tongue 23.

[0030] In the above structure, under special circumstances (such as the failure of the outer chamfer 232 and the inner chamfer 122) the lock tongue cannot be retracted in the unlocked state. The lock tongue 23 can be pushed away from the first locking hole / slot 121 by inserting a rod.

[0031] In this embodiment, the adjusting sleeve 20 is also provided with one or more sets of padlock holes 212 that pass through the entire slide groove / hole 21; when there are multiple first locking holes / grooves 121, the locking tongue 23 is adapted to one of the first locking holes / grooves 121 and is aligned, and at least one set of padlock holes 212 is aligned with another first locking hole / groove 121.

[0032] In the above structure, one or more padlock holes 212 can be used to achieve co-locking.

[0033] In this embodiment, the slide arm 12 has a T-shaped cross section and forms a horizontal rib 123 and a vertical rib 124. The first locking hole / slot 121 is opened on the vertical rib 124. The slide arm 12 is connected to the side wall of the plug sleeve 10.

[0034] In the above structure, the vertical rib 124 is located on the upper surface of the horizontal rib 123 and is centrally positioned in the width direction, which effectively improves the rigidity of the slide arm 12.

[0035] In this embodiment, the groove / hole 21 has a T-shaped cross section, and the end of the groove / hole 21 away from the plug sleeve 10 is provided with a support rib 24 that abuts against the bottom surface of the horizontal rib plate 123.

[0036] In the above structure, the lower surface of the horizontal rib plate 123 is provided with a downwardly extending rigid rib edge 1231, and the support rib 24 abuts against the lower surface of the rigid rib edge 1231 to improve the stability of the adjusting sleeve 20 when it is subjected to force.

[0037] In this embodiment, the lower end of the adjusting sleeve 20 is provided with a latch 25 extending toward the opening 11.

[0038] In the above structure, the latch 25 is used to adapt to the battery plug (not shown in the figure) to improve the anti-detachment effect.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A plug lock, comprising a plug sleeve having an opening and a sliding arm, the sliding arm having a first locking hole / slot, wherein when there are multiple first locking holes / slots, they are spaced apart along the length of the sliding arm; further comprising an adjusting sleeve having a groove / hole for the sliding arm to pass through, thereby adjusting the distance between the adjusting sleeve and the opening, characterized in that: The adjusting sleeve is equipped with a lock cylinder and a locking tongue controlled by the lock cylinder for locking or unlocking. The locking tongue passes through the side wall of the slide groove / hole and is adapted to the first locking hole / slot.

2. A plug lock according to claim 1, wherein: The lock cylinder is provided with a stop that is driven by the lock cylinder to rotate; when the stop is rotated to the rear of the bolt, it is used to restrict the bolt from retracting to prevent the bolt from retracting from the groove / hole.

3. A plug lock according to claim 2, wherein: The latch is equipped with a positioning spring for pushing it into the groove / hole.

4. A plug lock according to claim 3, wherein: The front end of the latch is provided with an outer chamfer, and the end of the first locking hole / slot facing the latch is provided with an inner chamfer at the opening. After the latch is unlocked, the outer chamfer and the inner chamfer are matched by the sliding adjustment sleeve to push the latch back and compress the positioning spring, thereby producing a step-like feel.

5. A plug lock according to claim 4, wherein: The adjusting sleeve has a through-hole on the inner wall of the groove / hole corresponding to the front end of the locking tongue.

6. A plug lock according to claim 1 or 2 or 3 or 4 or 5 wherein: The adjusting sleeve is also provided with one or more sets of padlock holes that run through the entire slide groove / hole; when there are multiple first locking holes / grooves, the lock tongue is adapted to one of the first locking holes / grooves and is aligned, and at least one set of padlock holes is aligned with another first locking hole / groove.

7. A plug lock according to claim 1, wherein: The sliding arm has a T-shaped cross-section and forms horizontal and vertical ribs. The first locking hole / slot is opened on the vertical rib. The sliding arm is connected to the side wall of the plug sleeve.

8. A plug lock according to claim 7, wherein: The groove / hole has a T-shaped cross-section, and the end of the groove / hole away from the plug sleeve is provided with a support rib that abuts against the bottom surface of the horizontal rib plate.

9. A plug lock according to claim 1, wherein: The lower end of the adjusting sleeve is provided with a latch extending toward the opening.

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