Container fixing device
By designing a corner rotary lock including a lock body, lock post, lock head and lock cap, and setting a fastening assembly and limit structure between the reinforced square tube and the lock cap, the cargo box fixing device is solved during the transportation process. The bumps and stability problems caused by loosening in the middle achieve higher vehicle stability and transportation safety.
Patent Information
- Application Number
- CN202421232935.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing cargo box fixtures are prone to loosening during transportation, causing the cargo box or container to shake, affecting the stability of the entire vehicle and posing a potential risk of rollover.
A corner rotary lock including a lock body, a lock post, a lock head and a lock cap is designed, and the fastening assembly between the square tube and the lock cap is reinforced, including an upper fastening plate, a lower fastening plate and a fastening sleeve. The tube limits the looseness of the lock cap and locks the connection between the upper and lower fastening plates through the limiting structure.
It effectively prevents the corner lock from loosening during transportation, avoids bumps and shaking of the cargo box or container, improves the stability of the whole vehicle, reduces the potential for overturning, and improves the transportation safety of goods.
Smart Images
Figure CN222512175U_ABST
Abstract
Description
Technical field:
[0001] The utility model belongs to the technical field of trailer transport box cargo fixing devices, and more specifically relates to a cargo box fixing device. Background technology:
[0002] At present, four corner fittings are arranged on the top and bottom of the cargo box or container. The corner fittings are fixed to the cargo platform of the trailer through corner fitting turn locks. At present, the turn locks are fixed by welding. When the cargo box or container is installed on the cargo flatbed, the turn locks are used normally. If the cargo flatbed needs to remove the cargo box for use when transporting non-detachable integral goods in the future, the turn locks cannot be removed, affecting the transportation of the goods. Moreover, after the turn locks are fixed to the corner fittings, the turn locks are only rotated 90 degrees, and the turn lock handle and the lock seat are not effectively fixed. When the vehicle is driving on bumpy roads, the turn locks may rotate, causing the turn locks to separate from the corner fittings, posing a safety hazard.
[0003] Currently, there are screw-type corner locks on the market that are detachable from the trailer cargo platform. This type of corner lock solves the above problems. However, after the existing corner lock is fixed to the corner piece, it is easy to loosen during transportation, especially long-distance transportation, resulting in a gap between the corner lock and the corner piece. This gap will cause the cargo box or container to shake during transportation, resulting in poor stability of the entire vehicle, especially when turning, there is a risk of vehicle rollover. Utility model content:
[0004] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides a cargo box fixing device;
[0005] The first technical problem to be solved is that the corner piece rotary lock is fixed to the trailer cargo platform and cannot be removed to affect the transportation of other goods.
[0006] The second technical problem to be solved is that during the transportation of the trailer, the corner lock becomes loose, and the cargo box or container above the trailer shakes and sways, resulting in poor stability of the entire vehicle and the risk of the vehicle rolling over when turning.
[0007] The specific technical solution of the utility model for solving the above technical problems is as follows: the cargo box fixing device described herein comprises an angle piece rotating lock detachably connected to a reinforced square tube of a trailer frame, the angle piece rotating lock comprises a lock body, a lock column, a lock head and a lock cap, the lock body is sequentially penetrated by a connecting plate and a reinforced square tube, the lock column is inserted into the lock body and extends to the outside of the lock body and is threadedly connected to the lock cap below the reinforced square tube, the upper end of the lock column is fixedly provided with a lock head, the upper end of the lock body is fixedly provided with a limit seat for limiting the position of the lock head, the lock body is detachably connected to the reinforced square tube through a connecting plate, the connecting plate comprises an upper connecting plate and a lower connecting plate, the upper connecting plate is fixedly provided with a lower end face of the limit seat, the lower connecting plate is fixedly provided with an upper end face of the reinforced square tube, and the upper connecting plate is fastened with the lower connecting plate by bolts; it is characterized in that:
[0008] A fastening assembly is provided between the reinforced square tube and the lock cap to prevent the lock cap from loosening. The fastening assembly includes an upper fastening plate, a lower fastening plate and a fastening sleeve. The lock cap is sequentially penetrated by the lower fastening plate, the upper fastening plate and the fastening sleeve. The upper end surface of the lock cap is threadedly connected to the lock column through an internal thread.
[0009] The upper fastening plate is fixedly connected to the lower end surface of the reinforced square tube through a fastening sleeve, and the lower fastening plate is fixedly connected to the side wall of the locking cap. A preset number of corresponding limiting holes are opened on the end surfaces of the upper fastening plate and the lower fastening plate in a ring matrix manner, and the limiting holes of the upper fastening plate and the lower fastening plate are locked by a limiting structure.
[0010] Furthermore, the limiting structure is a padlock.
[0011] Furthermore, the upper fastening plate and the lower fastening plate are disc-shaped.
[0012] Furthermore, a gasket is provided between the lock cap and the lock body.
[0013] Furthermore, the connecting plate includes an upper connecting plate and a lower connecting plate, the upper connecting plate is fixedly arranged on the lower end surface of the limiting seat, the lower connecting plate is fixedly arranged on the upper end surface of the reinforced square tube, and the upper connecting plate and the lower connecting plate are fastened and connected by bolts.
[0014] Furthermore, the upper connecting plate and the lower connecting plate are connected by hexagon socket countersunk screws.
[0015] The beneficial effects of the utility model are:
[0016] One advantage of the utility model is that the corner piece turn lock is detachably connected to the trailer frame. When the trailer needs to be installed with a cargo box or a container, the corner piece turn lock is used to fix it; when the cargo box or the container does not need to be installed, the corner piece turn lock can be removed, thereby not affecting the carrying of other items, thereby improving the practicality of the trailer.
[0017] One advantage of the present invention is that a fastening assembly is provided to prevent the lock nut from loosening. The fastening assembly is limited by a limiting structure, thereby limiting the lock nut, thereby preventing the threaded fastening between the lock nut and the lock column from loosening during transportation of the trailer, thereby causing a gap between the container corner fitting and the corner fitting rotary lock, causing the cargo box or container above the trailer to shake, resulting in poor stability of the entire vehicle and a risk of vehicle rollover when turning.
[0018] One advantage of the utility model is that a fastening assembly is arranged between the reinforced square tube and the locking cap, and the fastening assembly includes an upper fastening plate, a lower fastening plate and a fastening sleeve, the upper fastening plate is fixedly connected to the lower end face of the reinforced square tube through the fastening sleeve, and the lower fastening plate is fixedly connected to the side wall of the locking cap, and the upper fastening plate and the lower fastening plate can bear part of the pressure for the locking column, thereby preventing the locking column from being deformed due to long-term tensile load, thereby posing a hidden danger to trailer transportation. Description of the drawings:
[0019] Attached Figure 1 It is a schematic diagram of the structure of the utility model;
[0020] Attached Figure 2 It is a side view structural schematic diagram of the utility model;
[0021] Attached Figure 3 This is a schematic diagram of the corner piece rotation lock structure of the utility model; in the accompanying drawings:
[0022] 1. Reinforced square tube; 2. Angle piece turn lock; 21. Lock body; 211. Limit seat; 22. Lock column; 23. Lock head; 24. Lock cap; 3. Connecting plate; 31. Upper connecting plate; 32. Lower connecting plate; 4. Fastening assembly; 41. Upper fastening plate; 42. Lower fastening plate; 43. Fastening sleeve; 5. Limit hole; 6. Limit structure; 7. Washer. Specific implementation method:
[0023] In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "left", "right", "rear", "lower left", "upper right", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0024] Specific implementation of the utility model: a cargo box fixing device comprises an angle piece rotating lock 2 detachably connected to a reinforced square tube 1 of a trailer frame, the angle piece rotating lock 2 comprises a lock body 21, a lock column 22, a lock head 23 and a lock cap 24, the lock body 21 is detachably connected to the reinforced square tube 1 through a connecting plate 3, the lock body 21 sequentially penetrates the connecting plate 3 and the reinforced square tube 1 and contacts the lock cap 24, a through hole is provided on the end surface of the reinforced square tube 1, the lock column 22 is inserted into the lock body 21 and extends to the outside of the lock body 21 and is threadedly connected to the lock cap 24 below the reinforced square tube 1, after the lock column 22 and the lock cap 24 are threadedly locked, the lower end surface of the lock body 21 and the upper end surface of the lock cap 24 fit each other;
[0025] In order to adapt to different container or cargo box corner fittings, a washer 7 is provided between the lock cap 24 and the lock body 21. This design can prevent a gap between the lock cap 24 and the lock body 21 after the lock column 22 and the lock cap 24 are threadedly locked, so that the lock column 22 and the lock cap 24 will move up and down, and the poor stability will affect the locking effect of the corner fitting rotary lock 2;
[0026] A lock head 23 is fixedly arranged at the upper end of the lock column 22, and a limit seat 211 for limiting the position of the lock head 23 is fixedly arranged at the upper end of the lock body 21. The limit seat 211 is a concave structure, and the limit seat 211 can engage and limit the lock head 23 and limit the axial rotation of the lock head 23.
[0027] Preferably, the connecting plate 3 includes an upper connecting plate 31 and a lower connecting plate 32, the upper connecting plate 31 is fixed to the lower end surface of the limit seat 211, and the lower connecting plate 32 is fixed to the upper end surface of the reinforced square tube 1, and the upper connecting plate 31 and the lower connecting plate 32 are fastened together by bolts. Preferably, the upper connecting plate 31 and the lower connecting plate 32 are connected by hexagon socket countersunk screws.
[0028] This structure can facilitate the disassembly of the corner piece turn lock 2. When a cargo box or container needs to be installed on the trailer, the corner piece turn lock 2 is used to fix it; when the cargo box or container does not need to be installed, the corner piece turn lock 2 can be removed so as not to affect the transportation of other items.
[0029] As a preferred embodiment of the present utility model,
[0030] A fastening assembly 4 is provided between the reinforced square tube 1 and the lock cap 24 to prevent the lock cap 24 from loosening. The fastening assembly 4 includes an upper fastening plate 41, a lower fastening plate 42 and a fastening sleeve 43. The lock cap 24 is sequentially penetrated by the lower fastening plate 42, the upper fastening plate 41 and the fastening sleeve 43 and is threadedly connected to the lock column 22; the inner wall of the lock cap 24 is provided with an internal thread, and the lower end side wall of the lock column 22 is provided with an external thread that matches the internal thread.
[0031] The upper fastening plate 41 is fixedly connected to the lower end surface of the reinforced square tube 1 through a fastening sleeve 43, and the lower fastening plate 42 is fixedly connected to the side wall of the lock cap 24. The lower end surface of the reinforced square tube 1 is fixedly provided with a fastening sleeve 43 by welding or other fixing methods, and the upper fastening plate 41 is fixedly provided below the fastening sleeve 43, and the lower fastening plate 42 is provided below the upper fastening plate 41, and the lower fastening plate 42 is fixedly connected to the lock cap 24;
[0032] A preset number of corresponding limiting holes 5 are provided on the end surfaces of the upper fastening plate 41 and the lower fastening plate 42 in a ring matrix manner. The upper fastening plate 41 and the lower fastening plate 42 are disc-shaped.
[0033] The limiting holes 5 of the upper fastening plate 41 and the lower fastening plate 42 are locked by a limiting structure 6. Preferably, the limiting structure 6 is a padlock. As long as the upper fastening plate 41 and the lower fastening plate 42 can be limited to prevent the corner piece rotating lock 2 from loosening, it belongs to the protection object of the present utility model.
[0034] With this design, the upper fastening plate 41 and the lower fastening plate 42 can bear part of the pressure for the lock column 22, preventing the lock column 22 from being deformed due to long-term tensile load, thereby posing a hidden danger to trailer transportation; and the upper fastening plate 41 and the lower fastening plate 42 are limited by the limiting structure 6, thereby limiting the lock cap 24, to prevent the threaded fastening between the lock cap 24 and the lock column 22 from loosening during the transportation of the trailer, thereby causing a gap between the container corner fitting and the corner fitting rotary lock 2, and causing the cargo box or container above the trailer to shake, resulting in poor stability of the entire vehicle and a hidden danger of the vehicle rolling over when turning.
[0035] It should be noted that the utility model is a cargo box fixing device. When working,
[0036] When a cargo box or container needs to be loaded on the trailer, the cargo box or container is hoisted onto the cargo platform of the trailer by an external tool, such as a crane, wherein the corner piece of the cargo box or container is placed on the corner piece rotary lock 2 above the trailer; the lock cap 24 is rotated so that the lock head 23 is engaged in the limit seat 211, at this time, the corner piece rotary lock 2 is engaged with the corner piece of the cargo box or container; the lock cap 24 is further rotated, and the lock head 23 will move downward to clamp the corner piece of the cargo box or container, and the lock cap 24 and the lock column 22 are threadedly fastened. At this time, the corner piece rotary lock 2 is tightly engaged with the cargo box or container; in order to prevent the lock cap 24 from loosening, a padlock is used to penetrate the limit hole 5 to connect the upper fastening plate 41 and the lower fastening plate 42 together, thereby limiting the rotation of the lock cap 24, avoiding the loosening of the lock cap 24 during transportation of the trailer, resulting in a gap between the corner piece rotary lock 2 and the cargo box or container corner piece, causing the cargo box or container above the trailer to shake, resulting in poor stability of the entire vehicle and the risk of vehicle rollover when turning.
[0037] When there is no need to load a cargo box or container on the trailer, the corner piece rotary lock 2 can be removed manually.
[0038] Remove the padlock from the upper fastening plate 41 and the lower fastening plate 42, rotate the lock cap 24, loosen the lock cap 24 until it is completely unscrewed, and then remove the lock cap 24; then use a wrench or other tools to remove the bolts between the upper connecting plate 31 and the lower connecting plate 32, and then remove the rest of the corner piece turn lock 2; this can facilitate the disassembly and installation of the corner piece turn lock 2. When a cargo box or container needs to be installed on the trailer, the corner piece turn lock 2 is used to fix the cargo box or container; when the cargo box or container does not need to be installed, the corner piece turn lock 2 can be removed, so as not to affect the transportation of other items, thereby increasing the practicality of trailer transportation.
[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A cargo box fixing device, comprising an angle piece rotating lock (2) connected to a reinforced square tube (1) of a trailer frame, wherein the angle piece rotating lock (2) is detachably connected to the reinforced square tube (1) through a connecting plate (3), the angle piece rotating lock (2) comprises a lock body (21), a lock column (22), a lock head (23) and a lock cap (24), the lock head (23) being fixedly arranged at the upper end of the lock column (22), the lock body (21) being sequentially penetrated by the connecting plate (3) and the reinforced square tube (1), the lock column (22) being inserted into the lock body (21) and extending to the outside of the lock body (21) and being threadedly connected to the lock cap (24) below the reinforced square tube (1), the lock body (21) being in contact with the lock cap (24), and the upper end of the lock body (21) being fixedly arranged with a limit seat (211) for limiting the position of the lock head (23); characterized in that: A fastening assembly (4) is provided between the reinforcing square tube (1) and the lock cap (24) to prevent the lock cap (24) from loosening. The fastening assembly (4) comprises an upper fastening plate (41), a lower fastening plate (42) and a fastening sleeve (43). The lock cap (24) is sequentially penetrated by the lower fastening plate (42), the upper fastening plate (41) and the fastening sleeve (43). The upper end surface of the lock cap (24) is threadedly connected to the lock column (22) via an internal thread. The upper fastening plate (41) is fixedly connected to the lower end surface of the reinforced square tube (1) through a fastening sleeve (43), and the lower fastening plate (42) is fixedly connected to the side wall of the locking cap (24). A preset number of corresponding limiting holes (5) are provided on the end surfaces of the upper fastening plate (41) and the lower fastening plate (42) in a ring matrix manner, and the limiting holes (5) of the upper fastening plate (41) and the lower fastening plate (42) are locked by a limiting structure (6).
2. A cargo box fixing device according to claim 1, characterized in that The limiting structure (6) is a padlock.
3. A cargo box fixing device according to claim 1, characterized in that The upper fastening plate (41) and the lower fastening plate (42) are disc-shaped.
4. A cargo box fixing device according to claim 1, characterized in that A gasket (7) is arranged between the lock cap (24) and the lock body (21).
5. A cargo box fixing device according to claim 1, characterized in that The connecting plate (3) comprises an upper connecting plate (31) and a lower connecting plate (32); the upper connecting plate (31) is fixedly arranged on the lower end surface of the limiting seat (211); the lower connecting plate (32) is fixedly arranged on the upper end surface of the reinforced square tube (1); and the upper connecting plate (31) and the lower connecting plate (32) are fastened and connected by bolts.
6. A cargo box fixing device according to claim 5, characterized in that The upper connecting plate (31) and the lower connecting plate (32) are connected by means of hexagon socket countersunk screws.