A refrigeration vehicle pull-out shelf locking structure
By designing a locking structure for pull-out shelves with pins and locking mechanisms, the problem of lack of locking mechanisms in refrigerated and insulated truck shelves has been solved, achieving stable locking and convenient operation, and improving space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING CAMC YANJING AUTO CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
The lack of locking mechanisms on the shelves of refrigerated and insulated trucks leads to poor stability. The locking mechanisms cannot adapt to changes in the size of the storage boxes, making operation inconvenient.
Design a pull-out shelf locking structure including a pin shaft, a connector assembly, a front cover plate assembly, a locking structure assembly, and a rear cover plate assembly. The support beam is connected by a pin shaft, a sliding connection is achieved using pulleys and slide rails, and the shelf is easily locked by a locking pin and a handle.
It achieves stable locking of pull-out shelves, which can be locked in any position according to the size of the items, improving the utilization of space in the carriage and is easy to operate.
Smart Images

Figure CN224348832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive modification technology, and in particular to a locking structure for a pull-out shelf of a refrigerated and insulated truck. Background Technology
[0002] With the increasing demand from consumers for temperature-sensitive goods such as refrigerated food and pharmaceuticals, the refrigerated truck industry has ushered in unprecedented development opportunities. As an important link in the development of refrigerated logistics, small and medium-sized refrigerated trucks have gradually gained market favor due to their flexibility, low cost, energy saving and environmental protection characteristics, and are mostly used in fresh food distribution, pharmaceutical transportation and chemical raw material transportation.
[0003] A reasonable internal structure design is very important for refrigerated trucks. Currently, refrigerated and insulated trucks generally have the following problems: 1) The shelves do not have a locking structure, resulting in poor stability; 2) The existing locking structure cannot be adjusted to fit the size of the storage box; 3) The locking structure is not flexible enough and is inconvenient to operate.
[0004] This utility model provides a locking structure for a pull-out shelf in a refrigerated and insulated truck, which effectively solves these problems. The structure is simple and easy to operate, and the pull-out shelf can be locked in any position, greatly improving the utilization rate of the truck compartment. Utility Model Content
[0005] This utility model discloses a locking structure for a pull-out shelf in a refrigerated and insulated truck. The locking structure is installed on the pull-out shelf structure inside the truck compartment. The locking structure includes a pin, a connecting assembly, a front cover plate assembly, a locking structure assembly, and a rear cover plate assembly. The connecting assembly is connected to the front cover plate assembly, the locking structure assembly is located in a groove in the front cover plate assembly, and the front cover plate assembly and the rear cover plate assembly are connected by a slot. The pin is connected to a support beam inside the pull-out shelf structure.
[0006] Furthermore, the connecting assembly includes: an upper crossbeam, a lower crossbeam, and a connecting member, wherein the connecting member is fixedly connected to the upper crossbeam and the lower crossbeam, and the pin is disposed between the upper crossbeam and the lower crossbeam.
[0007] Furthermore, the pull-out shelf structure also includes: a connecting groove plate, a slide rail provided in the connecting groove plate, and pulleys provided at both ends of the lower crossbeam, wherein the lower crossbeam is slidably connected to the connecting groove plate.
[0008] Furthermore, the front cover assembly is provided with a front cover and fasteners.
[0009] Furthermore, the locking structure assembly includes a first locking pin, a connector, a lock, and a second locking pin.
[0010] Furthermore, the connector limits the first locking pin and the second locking pin within the groove of the front cover assembly.
[0011] Furthermore, the lock is provided with a rotating shaft component, and the shaft of the rotating shaft component is connected to a handle provided on the outside of the lock. The two ends of the rotating shaft component are respectively connected to a first locking pin and a second locking pin.
[0012] Furthermore, the side wall of the connecting groove plate is provided with a locking hole, and the limiting hole is used to accommodate the first locking pin and the second locking pin.
[0013] Furthermore, the number of locking holes is one or more.
[0014] Furthermore, the rear cover assembly includes a rear cover and a handle, wherein a lock hole groove for accommodating a lock is provided in the center of the rear cover.
[0015] This utility model structure enables the locking of the pull-out shelf structure, ensuring the safety of goods transportation;
[0016] This utility model allows the pull-out shelf structure to be locked in different positions according to the size of the items, making reasonable use of the space inside the vehicle.
[0017] This utility model has a simple structure, convenient opening and closing, and simple assembly, making it suitable for widespread application in existing refrigerated and insulated vehicle models or various vans. Attached Figure Description
[0018] Figure 1 This is a schematic diagram showing the installation position of this utility model inside the carriage;
[0019] Figure 2 This is a schematic diagram of the installation of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 1 ;
[0021] Figure 4 This is a schematic diagram of the locking structure of this utility model;
[0022] Figure 5 This is the left view of the present invention;
[0023] Figure 6 This is a schematic diagram illustrating how the pull-out shelf of this utility model is retracted and locked in a specific implementation.
[0024] Among them, the following components are included: carriage-1, pull-out shelf structure-2, connecting groove plate-21, locking hole-211, support beam-22, pull-out shelf locking structure-3, pin-31, connecting assembly-310, upper crossbeam-311, lower crossbeam-312, front cover plate assembly-320, front cover plate-321, fastener-322, locking structure assembly-330, first locking pin-331, connecting piece-332, lock-333, shaft rotating part-3331, handle-3332, second locking pin-334, rear cover plate assembly-340, rear cover plate-341, handle-342, and lock hole groove-343. Detailed Implementation
[0025] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0026] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0027] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0028] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] Please see Figure 1 , 2As shown in Figure 3, a refrigerated and insulated truck pull-out shelf locking structure 3 is provided on the pull-out shelf structure 2 inside the truck compartment 1. The pull-out shelf locking structure 3 includes a pin 31, a connecting assembly 310, a front cover plate assembly 320, a locking structure assembly 330, and a rear cover plate assembly 340. The connecting assembly 310 is connected to the front cover plate assembly 320, the locking structure assembly 330 is provided in the groove of the front cover plate assembly 320, and the front cover plate assembly 320 and the rear cover plate assembly 340 are connected by a slot. The pin 31 is connected to the support beam 22 inside the pull-out shelf structure 2.
[0030] Specifically, the connecting assembly 310 includes: an upper crossbeam 311, a lower crossbeam 312, and a connecting member 332. The connecting member 332 is fixedly connected to the upper crossbeam 311 and the lower crossbeam 312. The pin 31 is disposed between the upper crossbeam 311 and the lower crossbeam 312. The pull-out shelf structure 2 also includes: a connecting groove plate 21, in which a slide rail is provided. The lower crossbeam 312 has pulleys at both ends, and the lower crossbeam 312 is slidably connected to the connecting groove plate 21. Of course, other movable connection methods can also be used, which will not be elaborated here. The front cover assembly 320 is provided with a front cover plate 321 and fasteners 322. The locking structure assembly 330 includes a first locking pin 331, a connecting member 332, a lock 333, and a second locking pin 334.
[0031] It is worth mentioning that the connector 332 limits the first locking pin 331 and the second locking pin 334 within the groove of the front cover assembly 320. A shaft rotating member 3331 is provided inside the lock 333. A handle 3332 is provided on the outside of the lock 333 via a shaft connection to the shaft rotating member 3331. The two ends of the shaft rotating member 3331 are respectively shaft-connected to the first locking pin 331 and the second locking pin 334. A locking hole 211 is provided on the side wall of the connecting groove plate 21 to accommodate the first locking pin 331 and the second locking pin 334. There may be one or more locking holes 211. The rear cover assembly 340 includes a rear cover plate 341 and a handle 342. A lock hole groove 343 for accommodating the lock 333 is provided in the middle of the rear cover plate 341.
[0032] In specific implementation, firstly, the connecting assembly 310 is assembled. The upper crossbeam 311 and the lower crossbeam 312 are arranged opposite to each other and connected by the connecting piece 332. The lower crossbeam 312 has through holes at both ends for installing pulleys or rollers. The connecting groove plate 21 is provided with a slide rail, and the pulleys or rollers are installed in the slide rail, so as to realize the sliding connection between the assembled connecting assembly 310 and the pull-out rack structure 2. At the same time, the pin shaft 31 is shaft connected to the support beam 22 in the pull-out rack structure 2, so as to realize the lateral tensile connection between the connecting assembly 310 and the pull-out rack structure 2.
[0033] The second step involves assembling the connector assembly 310 and the front cover plate assembly 320. The locking structure assembly 330 is installed in the inner groove of the front cover plate 321. The locking structure, through the connector 332, limits the first locking pin 331 and the second locking pin 334 within the groove of the front cover plate assembly 320. The front cover plate assembly 320 is then fastened to the rear cover plate assembly 340, which are connected via a slot. The lock 333's through-hole groove 343 is exposed on the outside of the device. Further, the front cover plate assembly 320 and the rear cover plate assembly 340 are then re-secured using the connector 332. The connector 332 includes one or more temporary connection methods among bolt-nut connections, hinges, or shaft connections.
[0034] In specific implementation, a shaft rotating component 3331 is provided inside the lock 333. A handle 3332 is provided on the outside of the lock 333 via a shaft connection to the shaft rotating component 3331. The two ends of the shaft rotating component 3331 are respectively connected to a first locking pin 331 and a second locking pin 334. When the locking structure needs to be opened, the handle 3332 is rotated 90° clockwise. The shaft rotating component 3331 rotates along with the shaft of the handle 3332. The connecting component 332 limits the first locking pin 331 and the second locking pin 334 within the groove of the front cover assembly 320. The first locking pin 331 and the second locking pin 334 disengage from the locking hole 211, the locking structure opens, and the pull-out shelf structure 2 can slide. When the pull-out structure needs to be locked, the handle 3332 is rotated 90° counterclockwise, causing the shaft rotating component 3331 to rotate. This causes the first locking pin 331 and the second locking pin 334 to extend into the locking hole 211 for locking. This device has a simple structure and is easy to operate. It can not only lock the pull-out structure, but also stop the pull-out structure in the desired position, which greatly improves the space utilization of the carriage. It is suitable for promotion and retrofitting in existing technologies.
[0035] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A locking structure for a pull-out shelf in a refrigerated and insulated truck, wherein the pull-out shelf locking structure (3) is installed on a pull-out shelf structure (2) inside the truck compartment (1), characterized in that, The pull-out shelf locking structure (3) includes a pin (31), a connector assembly (310), a front cover plate assembly (320), a locking structure assembly (330), and a rear cover plate assembly (340). The connector assembly (310) is connected to the front cover plate assembly (320), and the locking structure assembly (330) is located in the groove of the front cover plate assembly (320). The front cover plate assembly (320) and the rear cover plate assembly (340) are connected by a slot. The pin (31) is connected to the support beam (22) in the pull-out shelf structure (2).
2. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 1, characterized in that, The connecting assembly (310) includes an upper crossbeam (311), a lower crossbeam (312), and a connecting member (332). The connecting member (332) is fixedly connected to the upper crossbeam (311) and the lower crossbeam (312). The pin (31) is disposed between the upper crossbeam (311) and the lower crossbeam (312).
3. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 2, characterized in that, The pull-out shelf structure (2) further includes: a connecting groove plate (21), in which a slide rail is provided, and pulleys are provided at both ends of the lower crossbeam (312), and the lower crossbeam (312) is slidably connected to the connecting groove plate (21).
4. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 3, characterized in that, The front cover assembly (320) is provided with a front cover (321) and a fastener (322).
5. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 4, characterized in that, The locking structure assembly (330) includes a first locking pin (331), a connector (332), a lock (333), and a second locking pin (334).
6. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 5, characterized in that, The connector (332) limits the first locking pin (331) and the second locking pin (334) within the groove of the front cover assembly (320).
7. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 6, characterized in that, The lock (333) is provided with a shaft rotating component (3331), and the shaft of the shaft rotating component (3331) is connected to a handle (3332) on the outside of the lock (333). The two ends of the shaft rotating component (3331) are respectively connected to a first locking pin (331) and a second locking pin (334).
8. The locking structure for the pull-out shelf of the refrigerated insulated cart according to claim 7, characterized in that, The connecting groove plate (21) has a locking hole (211) on its side wall, which is used to accommodate the first locking pin (331) and the second locking pin (334).
9. The locking structure for the pull-out shelf of a refrigerated insulated cart according to claim 8, characterized in that, The number of locking holes (211) is one or more.
10. The locking structure for the pull-out shelf of a refrigerated insulated cart according to claim 9, characterized in that, The rear cover assembly (340) includes a rear cover (341) and a handle (342), wherein a lock hole groove (343) for accommodating a lock (333) is provided in the middle of the rear cover (341).