Two-in-one car connecting lock

Abstract

The utility model discloses a two-in-one trolley connecting lock, including back -to -back lock, back -to -back lock includes spring lock assembly, lock seat subassembly, hook plate rotating subassembly, and spring lock assembly is welded on lock seat subassembly, and the hook plate rotating subassembly is rotatably connected through bolt subassembly in lock seat subassembly, and two sets are sleeved on bolt subassembly, and the two sets are sleeved with the spring, and the two sets are welded respectively in the inside both sides of lock seat subassembly, spring lock assembly includes pull rod, and the one end of pull rod is inserted with the pull ring, and the other end is sleeved with spring, and pull rod and spring are inserted in lock sleeve. The utility model discloses adopting the rotation mode, has the characteristics of structure nimble, operation nimble, accurate positioning, does not occupy the content space, and initiates the position, and the docking is nimble, and has the spring return design, and can be automatic reset after unlocking. Locking is stable and not easy to separate.

Description

Technical Field

[0001] This utility model relates to the field of logistics and transportation equipment technology, and in particular to a two-in-one vehicle connection lock. Background Technology

[0002] Commonly used trolley connection locks include lever-type locks: these consist of a lock frame fixed to the vertical tube, a locking lever passing through the side wall of the lock frame and connected to the latch via a connecting rod, and a spring fitted over the locking lever. When the pin at the end of the connecting rod aligns with the through hole on the lock frame, the latch extends under the action of the spring, locking the connecting rod and thus securing the logistics trolleys back-to-back. This type of lock is prone to deformation over time and is relatively complex to operate; it is also prone to shaking during transportation; and due to its spring-loaded latch structure, it is susceptible to jamming. Utility Model Content

[0003] To solve the above problems, this utility model provides a two-in-one vehicle connection lock.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a two-in-one vehicle connecting lock, including a back-to-back lock; the back-to-back lock includes a spring lock assembly, a lock seat assembly, and a hook plate rotating assembly, the spring lock assembly being welded to the lock seat assembly; the hook plate rotating assembly is rotatably connected to the lock seat assembly through a bolt assembly, two kits are fitted on the bolt assembly, and rotating springs are fitted on the two kits, the two kits being welded to the inner sides of the lock seat assembly respectively; the spring lock assembly includes a pull rod, one end of which is inserted with a pull ring, and the other end is fitted with a spring, the pull rod and the spring being inserted into the lock sleeve.

[0005] Furthermore, the lock base assembly includes a back plate, with irregularly shaped plates welded to both sides of the end face of the back plate, a square tube welded between the two irregularly shaped plates, and two kits welded to the inner sides of the two irregularly shaped plates respectively.

[0006] Furthermore, the hook plate rotating assembly includes a locking plate, on which a limit plate is welded, and a hook plate is welded to the bottom of the locking plate, with a limit screw installed at the bottom of the hook plate.

[0007] Furthermore, the spring includes two connected helical sections, the outer ends of which are bent downwards, forming an integral molded structure.

[0008] This utility model adopts a rotation mechanism, featuring a clever structure, flexible operation, and accurate positioning, without occupying internal space; it actively seeks positioning and allows for flexible docking; it also features a spring return design, automatically resetting after unlocking. The locking is secure and not easily disengaged. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rotating spring structure; Figure 3 This is a schematic diagram of the lock base assembly structure; Figure 4 This is a schematic diagram of the hook plate rotating assembly structure; Figure 5 This is a schematic diagram of the spring lock assembly structure; Figure 6 This is a schematic diagram showing the chassis and rear panel of the two vehicles in a separated state. Figure 7 yes Figure 6 Enlarged view of point A; Figure 8 This is a diagram showing two cars side-by-side, joined together. Figure 9 yes Figure 8 Enlarged diagram of point B.

[0010] Among them: 1. Trolley a, 2. Trolley b, 11. Rear frame tube of trolley a, 12. U-shaped handle, 21. Back-to-back lock, 22. Rear frame tube of trolley b, 23. Connecting horizontal tube, 211. Lock seat assembly, 212. Hook plate rotating assembly, 213. Spring lock assembly, 214. Rotary spring, 215. Bolt assembly, 2111. Irregular plate, 2112. Back plate, 2113. Square tube, 2114. Kit, 2121. Limiting upright plate, 2122. Lock plate, 2123. Hook plate, 2124. Limiting screw, 2131. Pull rod, 2132. Lock sleeve, 2133. Pull ring, 2134. Spring. Detailed Implementation

[0011] The following is in conjunction with the appendix Figure 1-9 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0012] The two-in-one vehicle connection lock includes a back-to-back lock 21; the back-to-back lock 21 includes a spring lock assembly 213, a lock seat assembly 211, and a hook plate rotating assembly 212. The spring lock assembly 213 is welded to the lock seat assembly 211; the hook plate rotating assembly 212 is rotatably connected to the lock seat assembly 211 through a bolt assembly 215. Two kits 2114 are mounted on the bolt assembly 215, and the two kits 2114 are distributed on both sides of the hook plate rotating assembly 212. A rotating spring 214 is mounted on each of the two kits 2114, and the two kits 2114 are welded to the inside sides of the lock seat assembly 211 respectively; the spring lock assembly 213 includes a pull rod 2131, one end of which is fitted with a pull ring 2133, and the other end is fitted with a spring 2134. The pull rod 2131 and the spring 2134 are inserted into the lock sleeve 2132.

[0013] The lock base assembly 211 includes a back plate 2112, with irregularly shaped plates 2111 welded to both sides of the end face of the back plate 2112, and a square tube 2113 welded between the two irregularly shaped plates 2111. Two kits 2114 are respectively welded to the inner sides of the two irregularly shaped plates 2111.

[0014] The hook plate rotating assembly 212 includes a locking plate 2122, a limiting plate 2121 welded onto the locking plate 2122, a hook plate 2123 welded to the bottom of the locking plate 2122, and a limiting screw 2124 installed at the bottom of the hook plate 2123.

[0015] The rotating spring 214 includes two connected helical parts, the outer ends of which are bent downwards to form an integral molded structure.

[0016] The lock seat assembly 211 is welded between the rear frame tube and the connecting horizontal tube 23. The bolt assembly 215 passes sequentially through the rear frame tube 2 of trolley b, the lock seat assembly 211 and its internal kit 2114, and the hook plate rotating assembly 212 to form a rotating connection. A rotating spring 214 is fitted onto the kit 2114. The lower end of the spring lock assembly 213 is welded to the upper end of the lock seat assembly 211, and the side is welded to the rear frame tube 2 of trolley b. The U-shaped handle 12 is welded to the rear frame tube 11 of trolley a. There are two sets of back-to-back locks 21 on the left side of trolley b2, and two sets of U-shaped handles 12 on the right side of trolley a1, corresponding to the back-to-back locks 21.

[0017] The back-to-back lock 21 is initially in the open state. At this time, the pull rod 2131 of the spring lock assembly 213 is embedded in the positioning hole of the limit plate 2121 of the hook plate rotation assembly 21. When trolleys a1 and b2 need to be combined back-to-back into one trolley, the two trolleys must first be moved back-to-back until the U-shaped handle 12 welded to the rear side tube 11 of trolley a is embedded in the groove of the irregular plate 2111 of the lock seat assembly 211. The lock seat assembly 211 is welded between the rear side tube 22 and the connecting horizontal tube 23 of trolley b. Pull the pull ring 2133 of the spring lock assembly 213 of trolley b2 so that the pull rod 2131 of the spring lock assembly 213 separates from the positioning hole of the limiting plate 2121 in the hook plate rotating assembly 212. The hook plate rotating assembly 212 is rotated counterclockwise by the action of the rotating spring 214 until the lock plate 2122 contacts the irregular plate 2111. At this time, the hook plate 2123 limits the U-shaped handle 12, and the back-to-back lock 21 is in the locked state. When it is necessary to separate the two vehicles, pull the pull ring 2133 of the spring lock assembly 213 to rotate the hook plate rotating assembly 212 clockwise by a certain angle, so that the pull rod 2131 is coaxial with the positioning hole of the limiting plate 2121. Release the pull ring 2133, and the spring lock assembly 213 will automatically lock. The pull rod 2131 will limit the hook plate rotating assembly 212. At this time, the back-to-back lock 21 is in the open state, and the two vehicles can be moved to separate them.

[0018] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. A two-in-one vehicle connection lock, characterized in that, The back-to-back lock (21) includes a spring lock assembly (213), a lock seat assembly (211), and a hook plate rotating assembly (212). The spring lock assembly (213) is welded to the lock seat assembly (211). The hook plate rotating assembly (212) is rotatably connected to the lock seat assembly (211) by a bolt assembly (215). Two kits (2114) are fitted on the bolt assembly (215). Two springs (214) are fitted on the two kits (2114). The two kits (2114) are welded to the inside sides of the lock seat assembly (211). The spring lock assembly (213) includes a pull rod (2131). A pull ring (2133) is inserted at one end of the pull rod (2131), and a spring (2134) is fitted at the other end. The pull rod (2131) and the spring (2134) are inserted into the lock sleeve (2132).

2. The two-in-one vehicle connection lock according to claim 1, characterized in that, The lock base assembly (211) includes a back plate (2112), with irregular plates (2111) welded to both sides of the end face of the back plate (2112), a square tube (2113) welded between the two irregular plates (2111), and two kits (2114) distributed on both sides of the hook plate rotating assembly (212).

3. The two-in-one vehicle connection lock according to claim 1, characterized in that, The hook plate rotating assembly (212) includes a locking plate (2122), a limiting plate (2121) is welded on the locking plate (2122), a hook plate (2123) is welded to the bottom of the locking plate (2122), and a limiting screw (2124) is installed at the bottom of the hook plate (2123).

4. The two-in-one vehicle connection lock according to claim 1, characterized in that, The spring (214) includes two connected helical parts, the outer ends of which are bent downwards to form an integral structure.

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