Hook lock device for table trolley
By designing a hook lock device and utilizing a U-shaped frame and drive assembly to simplify the locking process of the logistics transfer vehicle, the problem of cumbersome lock management is solved, and fast and convenient door frame locking is achieved.
Patent Information
- Application Number
- CN202422815675.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-19
AI Technical Summary
The lock management of existing logistics transfer vehicles is cumbersome and the key management is inconvenient, resulting in complicated operation steps and difficulty in quickly locking the door.
A hook lock device is designed, including a U-shaped frame, a rotating rod, a lock hook, a driving assembly and a torsion spring. The U-shaped frame is driven by the driving assembly to move, and the lock hook rotates around the rotating rod and compresses the torsion spring, thereby realizing the locking connection between the lock hook and the door frame, simplifying the locking process.
It realizes fast and convenient door frame locking, simplifies lock management, improves operational efficiency and reduces the complexity of lock management.
Smart Images
Figure CN223420775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of logistics equipment, in particular to a hook locking device for a logistics trolley. Background Art
[0002] Currently, in the logistics and warehousing industry, racks or logistics transfer vehicles are often used to store and transport goods. Existing logistics transfer vehicles generally adopt a basket-like structure, consisting of a left frame, a rear frame, a right frame, and a front frame. The front frame consists of two biparting doors. When loading and unloading goods, both doors need to be opened. During the transfer process, to prevent the doors from opening and causing the goods to fall, they are usually temporarily fixed, such as with locks.
[0003] However, in actual use, logistics transfer vehicles need to be unlocked frequently. If traditional padlocks or latch locks are used, there will be problems with key management and lock management, and the operation steps are cumbersome and not easy to use. Utility Model Content
[0004] The purpose of the utility model is to provide a hook locking device for a logistics trolley to solve the above-mentioned deficiencies in the prior art.
[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:
[0006] A hook lock device for a logistics trolley comprises a mounting frame fixedly arranged on a door panel, a U-shaped frame being slidably connected to the mounting frame, and a locking hook device being connected to the opening of the U-shaped frame; the locking hook device comprises a rotating rod rotatably connected to the U-shaped frame, a locking hook being fixedly connected to the rotating rod, and the end of the locking hook being bent; both ends of the rotating rod pass through a slide groove on the mounting frame and are threadedly connected to a first nut, and a torsion spring is also fixedly arranged on the rotating rod, one end of the torsion spring is clamped on the U-shaped frame, and the other end is fixedly connected to the rotating rod; and a driving assembly is also included, which is used to control the movement of the U-shaped frame.
[0007] Furthermore, the driving assembly includes a sliding rod slidably connected to the mounting frame, one end of the sliding rod is fixedly connected to the U-shaped frame, and the other end is connected to the transmission part, and a spring is fixedly connected between the U-shaped frame and the fixed frame.
[0008] Furthermore, the transmission part includes a limit block slidably connected to the sliding rod, one end of the limit block extends into the fixed frame and is threadedly connected to a locking nut, two fixed plates are rotatably connected on both sides of the limit block, a rotating block is rotatably connected between the two fixed plates, a limit pin is fixedly connected to the rotating block, and the limit pin extends into the sliding rod.
[0009] Furthermore, a handle is rotatably connected to the rotating block, and the rotation direction of the handle is vertical to the rotation direction of the rotating block.
[0010] Furthermore, it also includes an adjusting rod, which is slidably connected to the two sliding grooves, and both ends of the adjusting rod are respectively threadedly connected to a second nut.
[0011] Furthermore, the end of the slide away from the U-shaped frame is inclined.
[0012] Furthermore, a reinforcement plate is fixedly provided on the locking hook.
[0013] Furthermore, the end of the locking hook is threadedly connected with a clamping bolt.
[0014] In the above technical solution, the hook lock device for a logistics trolley provided by the utility model has the following beneficial effects:
[0015] Through the provided lock hook device, the driving assembly drives the U-shaped frame to move, and the movement of the U-shaped frame drives the rotating rod and the lock hook to move along the slide groove. When the end of the lock hook abuts against the protruding rod on the door, due to the bent design of the end of the lock hook, the lock hook rotates around the rotating rod and compresses the torsion spring until it passes through the protruding rod. The torsion spring causes the lock hook to rotate and reset, so that the bent part of the lock hook is engaged with the lock hook, and then the U-shaped frame is reset by the driving assembly, thereby completing the locking of the door frame.
[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
[0017] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0019] Figure 1 The overall structure of the embodiment of the present invention is shown in FIG. Figure 1 ;
[0020] Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure 2 ;
[0021] Figure 3 A schematic diagram of the fixing frame structure provided by an embodiment of the present utility model;
[0022] Figure 4 A schematic diagram of the structure of a drive assembly provided in an embodiment of the present utility model;
[0023] Figure 5 A schematic diagram of the limit block structure provided in an embodiment of the present utility model;
[0024] Figure 6 This is a schematic diagram of the sliding rod structure provided by an embodiment of the utility model.
[0025] Description of reference numerals:
[0026] 1. Mounting frame; 11. U-shaped frame; 2. Locking hook device; 21. Rotating rod; 22. Locking hook; 23. First nut; 24. Torsion spring; 25. Reinforcement plate; 26. Snap bolt; 27. Slide groove; 3. Drive assembly; 31. Sliding rod; 32. Fixed plate; 33. Limit block; 34. Rotating block; 35. Limit pin; 36. Handle; 37. Spring; 38. Locking nut; 4. Adjusting rod; 41. Second nut. DETAILED DESCRIPTION
[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0028] See also Figure 1-6 A hook lock device for a logistics trolley includes a mounting frame 1 fixedly mounted on a door panel, a U-shaped frame 11 being slidably connected to the mounting frame 1, and a locking hook device 2 being connected to the opening of the U-shaped frame 11. The locking hook device 2 includes a rotating rod 21 rotatably connected to the U-shaped frame 11, a locking hook 22 being fixedly connected to the rotating rod 21, and the end of the locking hook 22 being bent. Both ends of the rotating rod 21 pass through a slide groove 27 on the mounting frame 1 and are threadedly connected to a first nut 23. A torsion spring 24 is also fixedly mounted on the rotating rod 21, one end of which is clamped to the U-shaped frame 11 and the other end is fixedly connected to the rotating rod 21. The device also includes a drive assembly 3 for controlling the movement of the U-shaped frame 11. A gasket is installed between the first nut 23 and the mounting frame 1. To improve the sliding smoothness of the rotating rod 21, a compression spring (not shown in the figure) can also be installed between the gasket and the first nut 23.
[0029] The drive assembly 3 drives the U-shaped frame 11 to move, and the movement of the U-shaped frame 11 drives the rotating rod 21 and the lock hook 22 to move along the slide 27. When the end of the lock hook 22 abuts the protruding rod on the door, due to the bent design of the end of the lock hook 22, the lock hook 22 rotates around the rotating rod 21 and compresses the torsion spring 24 until it passes the protruding rod. The torsion spring 24 causes the lock hook 22 to rotate and reset, thereby causing the bent portion of the lock hook 22 to engage with the lock hook 22. The U-shaped frame 11 is then reset by the drive assembly 3, thereby completing the locking of the door frame. The protruding rod is a protrusion fixedly set on the door panel without the mounting frame 1, so that the lock hook 22 can engage with the protrusion and quickly complete the locking of the two doors of the logistics carousel.
[0030] Furthermore, the driving assembly 3 includes a sliding rod 31 slidably connected to the mounting frame 1 , one end of the sliding rod 31 is fixedly connected to the U-shaped frame 11 , and the other end is connected to the transmission part, and a spring 37 is fixedly connected between the U-shaped frame 11 and the fixed frame.
[0031] The transmission part drives the sliding rod 31 to move, and the movement of the sliding rod 31 drives the U-shaped frame 11 to move and stretch the spring 37. When the hook locking device completes locking, the spring 37 drives the U-shaped frame 11 to reset.
[0032] Furthermore, the transmission part includes a limit block 33 that is slidably connected to the sliding rod 31, one end of the limit block 33 extends into the fixed frame and is threadedly connected to a locking nut 38, two fixed plates 32 are rotatably connected on both sides of the limit block 33, and a rotating block 34 is rotatably connected between the two fixed plates 32, and a limit pin 35 is fixedly connected to the rotating block 34, and the limit pin 35 extends into the sliding rod 31.
[0033] The rotation of the rotating block 34 drives the limit pin 35 to rotate. Since the limit pin 35 extends into the sliding rod 31 and the sliding rod 31 is slidably connected to the fixed frame, the rotation of the limit pin 35 drives the sliding rod 31 to move (at this time, the fixed plate 32 also rotates accordingly), and the movement of the sliding rod 31 drives the U-shaped frame 11 to move.
[0034] Furthermore, a handle 36 is rotatably connected to the rotating block 34, and the rotation direction of the handle 36 is perpendicular to the rotation direction of the rotating block 34. By using the lever principle, the handle 36 can rotate the rotating block 34 more effortlessly, and the rotatable setting of the handle 36 is easy for workers to operate.
[0035] Furthermore, it includes an adjusting rod 4, which is slidably connected to the two chute 27, and the two ends of the adjusting rod 4 are respectively threadedly connected to the second nut 41. The end of the chute 27 away from the U-shaped frame 11 is inclined.
[0036] The tightness of the lock hook 22 can be adjusted by moving the adjusting rod 4, and the inclined sliding groove 27 can further expand the adjustment range.
[0037] Furthermore, a reinforcing plate 25 is fixedly provided on the lock hook 22. The reinforcing plate 25 is used to improve the strength of the lock hook 22 to tightly lock the door panel.
[0038] Furthermore, the end of the lock hook 22 is threadedly connected with a clamping bolt 26. After the bent end of the lock hook 22 abuts against the protruding rod on the door panel, the clamping bolt 26 can be extended and clamped with the protruding rod, thereby further strengthening the locking effect of the lock hook 22.
[0039] The working principle is: the rotating block 34 is rotated by the handle 36, and the rotation of the rotating block 34 drives the limiting pin 35 to rotate. Since the limiting pin 35 extends into the sliding rod 31, and the sliding rod 31 is slidably connected to the fixed frame, the limiting pin 35 rotates and drives the sliding rod 31 to move. The movement of the sliding rod 31 drives the U-shaped frame 11 to move and stretch the spring 37. The movement of the U-shaped frame 11 drives the rotating rod 21 and the lock hook 22 to move along the slide groove 27. When the end of the lock hook 22 abuts the protruding rod on the door, due to the bent design of the end of the lock hook 22, the lock hook 22 rotates around the rotating rod 21 and compresses the torsion spring 24 until it passes the protruding rod. The torsion spring 24 causes the lock hook 22 to rotate and return to its original position, so that the bent portion of the lock hook 22 is engaged with the lock hook 22, and the spring 37 drives the U-shaped frame 11 to return to its original position, thereby completing the locking of the door.
[0040] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A hook lock device for a logistics trolley, characterized by: It comprises a mounting frame (1) fixedly arranged on the door panel, a U-shaped frame (11) being slidably connected in the mounting frame (1), and a locking hook device (2) being connected to the opening of the U-shaped frame (11); The locking hook device (2) comprises a rotating rod (21) rotatably connected to the U-shaped frame (11), a locking hook (22) being fixedly connected to the rotating rod (21), and an end of the locking hook (22) being bent; both ends of the rotating rod (21) pass through a sliding groove (27) on the mounting frame (1) and are threadedly connected to a first nut (23); a torsion spring (24) is also fixedly provided on the rotating rod (21), one end of the torsion spring (24) being clamped to the U-shaped frame (11), and the other end being fixedly connected to the rotating rod (21); It also includes a driving assembly (3) for controlling the movement of the U-shaped frame (11).
2. A hook lock device for a logistics trolley according to claim 1, characterized in that: The driving assembly (3) comprises a sliding rod (31) slidably connected to the mounting frame (1), one end of the sliding rod (31) is fixedly connected to the U-shaped frame (11), and the other end is connected to the transmission part, and a spring (37) is fixedly connected between the U-shaped frame (11) and the fixed frame.
3. A hook lock device for a logistics trolley according to claim 2, characterized in that: The transmission part includes a limit block (33) slidably connected to the sliding rod (31), one end of the limit block (33) extends into the fixed frame and is threadedly connected to a locking nut (38), two fixed plates (32) are rotatably connected to both sides of the limit block (33), a rotating block (34) is rotatably connected between the two fixed plates (32), a limit pin (35) is fixedly connected to the rotating block (34), and the limit pin (35) extends into the sliding rod (31).
4. A hook lock device for a logistics trolley according to claim 3, characterized in that: The rotating block (34) is also rotatably connected to a handle (36), and the rotation direction of the handle (36) is vertically arranged to the rotation direction of the rotating block (34).
5. The hook lock device for a logistics trolley according to claim 1, characterized in that: It also includes an adjusting rod (4), the adjusting rod (4) is slidably connected to the two sliding grooves (27), and the two ends of the adjusting rod (4) are respectively threadedly connected to a second nut (41).
6. The hook lock device for a logistics trolley according to claim 5, characterized in that: The end of the chute (27) away from the U-shaped frame (11) is arranged in an inclined manner.
7. The hook lock device for a logistics trolley according to claim 1, characterized in that: A reinforcement plate (25) is fixedly provided on the locking hook (22).
8. The hook lock device for a logistics trolley according to claim 1, characterized in that: The end of the locking hook (22) is threadedly connected with a clamping bolt (26).