Drawer sliding rail structure of vehicle-mounted refrigerator

Abstract

The drawer sliding rail structure of the vehicle-mounted refrigerator comprises a box body and a drawer capable of being pulled on the box body inwards and outwards, a guide sliding groove is formed in the box body, the drawer is connected with at least three guide sliding wheels capable of rolling on the guide sliding groove, the guide sliding wheels are arranged in the length direction of the guide sliding groove, and the guide sliding wheels are arranged in the guide sliding groove. The adjacent guide pulleys abut against the side walls of the two sides of the guide sliding grooves in a staggered mode, and through the arrangement of the at least three guide pulleys, the drawer can be better supported during sliding. The adjacent guide sliding wheels abut against the side walls of the two sides of the guide sliding grooves in a staggered mode, so that balanced supporting force can be provided on the two sides, shaking of the drawer in the sliding process is reduced, noise and vibration generated when the drawer moves are small, and the influence on quietness in a cab is low.

Description

Technical Field

[0001] This utility model relates to the field of vehicle refrigerator technology, and in particular to a drawer slide structure for a vehicle refrigerator. Background Technology

[0002] With the development of the automotive industry and the improvement of people's living standards, car refrigerators have become an increasingly popular feature in modern vehicles. They provide great convenience for long-distance travel, allowing users to enjoy fresh food and drinks during their journey. However, to ensure that car refrigerators can effectively store items and facilitate easy access for users, higher requirements are placed on the design of the internal drawers.

[0003] Currently, most car refrigerator drawers on the market use traditional rolling slide structures. While these structures can achieve basic opening and closing functions, they often encounter problems in the complex environment of a car, such as loud operating noise, noticeable vibrations, unstable opening and closing times, and high temperature sensitivity. In particular, insufficient lubrication of the slides can lead to difficulty in opening in high-temperature environments, while material shrinkage can cause jamming in low-temperature environments, seriously affecting the user experience and the overall quality of the product.

[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides a drawer slide structure for a car refrigerator that can reduce noise and vibration, improve the stability and smoothness of switching, and provide a more comfortable driving environment for drivers and passengers.

[0006] This utility model is achieved through the following technical solution:

[0007] A drawer slide structure for a car refrigerator includes a cabinet and a drawer that can be pulled out and out of the cabinet. The cabinet is provided with a guide groove, and the drawer is connected to at least three guide rollers that can roll on the guide groove. Each guide roller is arranged along the length of the guide groove, and adjacent guide rollers abut against the two side walls of the guide groove in an alternating manner.

[0008] As described above, in a vehicle refrigerator drawer slide rail structure, two guide rails are arranged on the cabinet along the drawer's pulling direction, and the guide groove is provided on the guide rails.

[0009] As described above, in the drawer slide structure of a vehicle refrigerator, both guide rails have their grooves angled outwards.

[0010] As described above, in a car refrigerator drawer slide structure, the bottom of the drawer is connected to a sliding plate, and the guide rollers are connected to the sliding plate.

[0011] As described above, in a drawer slide structure for a car refrigerator, the slide plate is parallel to the bottom of the guide groove, and the drawer is provided with a mounting surface for connecting the slide plate, the mounting surface being parallel to the bottom of the guide groove.

[0012] As described above, the drawer slide structure of a car refrigerator includes an O-shaped self-lubricating bearing and a first wear-resistant layer sleeved on the outer wall of the self-lubricating bearing. The groove wall of the guide slide is provided with a first groove that matches the shape of the first wear-resistant layer.

[0013] As described above, the drawer slide structure of a car refrigerator includes a U-shaped self-lubricating bearing and a second wear-resistant layer sleeved on the outer wall of the self-lubricating bearing. The groove wall of the guide slide is provided with an inwardly protruding flange, and the shape of the second wear-resistant layer is adapted to the flange.

[0014] As described above, a drawer slide structure for a vehicle refrigerator includes a coil spring between the drawer and the cabinet for pulling the drawer outward, and a locking component between the drawer and the cabinet for locking the drawer when it retracts.

[0015] As described above, a drawer slide structure for a car refrigerator includes a slider fixedly connected to the drawer, a damping structure between the refrigerator body and the slider, the damping structure including a damper on the slider, a gear on the damper, and a rack on the refrigerator body in the inward and outward directions, the gear and the rack meshing with each other.

[0016] As described above, the drawer slide structure of a car refrigerator has limiting members at both ends of the cabinet for limiting the movement distance of the slider, and the limiting members are provided with flexible buffer heads.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. In this case, the layout of at least three guide rollers provides better support for the drawer during sliding. The adjacent guide rollers abut against the side walls of the guide groove in an alternating manner, which provides balanced support on both sides, reduces wobbling during the drawer's sliding process, and minimizes noise and vibration generated by the drawer during operation, thus having a lower impact on the quietness of the driver's cab.

[0019] 2. The fit between the guide pulley and the guide groove reduces wear caused by friction, thereby extending the service life of the entire slide rail system. When the guide pulley or guide groove fails, users or maintenance personnel can easily replace them without having to replace the entire system.

[0020] 3. Both guide rails have their grooves angled outwards to prevent the guide rollers from derailing, providing a natural locking mechanism that better guides and supports the drawer's movement trajectory, reducing the possibility of lateral movement. This helps improve the stability and reliability of the entire system. By changing the contact angle between the guide rails and the guide rollers, the force can be distributed more evenly on each guide roller, reducing the pressure on individual components and thus extending their service life.

[0021] 4. The guide pulley includes a self-lubricating bearing and a first wear-resistant layer sleeved on the outer wall of the self-lubricating bearing. It has built-in lubricating material. The self-lubricating bearing can greatly reduce or even eliminate the need for external lubrication, thereby reducing the workload and cost of regular maintenance. The self-lubricating bearing can directly replace standard rolling bearings or other traditional bearings, simplifying the installation process and reducing the use of lubricant. This not only reduces the impact on the environment, but also avoids potential leakage risks, meeting the requirements of green environmental protection. The bearing runs more quietly.

[0022] 5. A coil spring is installed between the drawer and the cabinet to pull the drawer outward. After the drawer is unlocked, it can automatically move outward without the need for continuous manual pulling, which improves the convenience of use. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an exploded view of the present invention;

[0026] Figure 3 This is an exploded view of the present invention after the drawer has been removed. Figure 1 ;

[0027] Figure 4 This is an exploded view of the present invention after the drawer has been removed. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the end face of the present invention after the outer shell of the box has been removed;

[0029] Figure 6 This is a schematic diagram showing the distribution of the guide pulleys in the guide groove in this utility model;

[0030] Figure 7 This is a schematic diagram of the guide pulley and guide groove in Embodiment 1 of this utility model;

[0031] Figure 8 This is a schematic diagram of the guide pulley and guide groove in Embodiment 2 of this utility model. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings:

[0033] like Figures 1 to 8 The drawer slide structure of a car refrigerator shown includes a cabinet 1 and a drawer 2 that can be pulled out and pulled inward on the cabinet 1. The cabinet 1 is provided with a guide groove 3. The drawer 2 is connected to at least three guide rollers 4 that can roll on the guide groove 3. Each guide roller 4 is arranged along the length of the guide groove 3, and adjacent guide rollers 4 abut against the two side walls of the guide groove 3 in an alternating manner.

[0034] In this case, the layout of at least three guide rollers 4 provides better support for drawer 2 during sliding. Adjacent guide rollers 4 abut against the side walls of the guide rail 3 in an alternating manner, providing balanced support from both sides and reducing wobbling during drawer 2's sliding. This results in less noise and vibration during drawer movement, minimizing the impact on the quietness of the driver's cab. The cooperation between the guide rollers 4 and the guide rail 3 reduces wear caused by friction, thereby extending the service life of the entire slide rail system. When guide rollers 4 and guide rail 3 malfunction, users or maintenance personnel can easily replace them without needing to replace the entire system.

[0035] Specifically, two guide rails 30 are arranged on the cabinet 1 along the pulling direction of the drawer 2. The guide grooves 3 are provided on the guide rails 30, and both guide rails 30 are inclined outwards, thus forming a figure-eight structure. This prevents the guide rollers 4 from derailing, providing a natural locking mechanism. It can better guide and support the movement trajectory of the drawer 2, reducing the possibility of lateral movement. This helps to improve the stability and reliability of the entire system. By changing the contact angle between the guide rails 30 and the guide rollers 4, the force can be more evenly distributed on each guide roller 4, reducing the pressure on individual components and thus extending their service life.

[0036] Furthermore, a sliding plate 5 is connected to the bottom of drawer 2, and the guide roller 4 is connected to the sliding plate 5. The sliding plate 5 is parallel to the bottom of the guide groove 3. The drawer 2 has a mounting surface for connecting the sliding plate 5, which is parallel to the bottom of the guide groove 3. The guide roller 4 is rotatably connected to the sliding plate 5 via a pivot. This integrates the guide roller 4 into the sliding plate 5 and then fixes it to the drawer 2 via the sliding plate 5, facilitating disassembly and assembly and making it easy to replace parts.

[0037] In one embodiment, the guide pulley 4 includes an O-shaped self-lubricating bearing and a first wear-resistant layer 41 sleeved on the outer wall of the self-lubricating bearing. The guide groove 3 has a first groove 31 on its groove wall that matches the shape of the first wear-resistant layer 41. The first wear-resistant layer 41 can be a plastic layer, or it can be a layer of other materials.

[0038] In one embodiment, the guide pulley 4 includes a U-shaped self-lubricating bearing and a second wear-resistant layer 42 sleeved on the outer wall of the self-lubricating bearing. The guide groove 3 has an inwardly protruding flange 32 on its groove wall, and the shape of the second wear-resistant layer 42 is adapted to the flange 32. The second wear-resistant layer 42 can be a plastic layer, or it can be made of other materials. The flange 32 is integrally formed with the groove wall of the guide groove 3 or inserted into the groove wall.

[0039] Self-lubricating bearings can significantly reduce or even eliminate the need for external lubrication, thereby reducing the workload and cost of regular maintenance. Self-lubricating bearings can directly replace standard rolling bearings or other traditional bearings, simplifying the installation process and reducing the use of lubricants. This not only reduces the impact on the environment but also avoids potential leakage risks, meeting the requirements of green environmental protection. The bearings also operate more quietly.

[0040] In one embodiment, a coil spring 6 is provided between drawer 2 and cabinet 1 for pulling drawer 2 outward, and a locking component 7 is also provided between drawer 2 and cabinet 1 for locking drawer 2 when it retracts. The structure of the locking component is the same as or similar to the structure of the lock and active switch in the patent document with patent number 202223061066.0 entitled "A Double-Damping Pull-Out Car Refrigerator". After unlocking, drawer 2 can automatically retract outward without continuous manual pulling, improving ease of use.

[0041] In one embodiment, a slider 21 is fixedly connected to the drawer 2. A damping structure is provided between the housing 1 and the slider 21. The damping structure includes a damper 8 disposed on the slider 21, a gear 81 disposed on the damper 8, and a rack 82 disposed on the housing 1 in the inward and outward directions. The gear 81 and the rack 82 mesh with each other. The damping structure can effectively reduce the impact of the drawer 2 during the opening and closing process, making the operation smoother and more fluid.

[0042] In one embodiment, the two ends of the housing 1 are provided with limiting members 9 for restricting the movement distance of the slider 21, and the limiting members 9 are provided with flexible buffer heads. The limiting members 9 can effectively prevent the drawer 2 from being pulled out excessively or pushed back too forcefully, protecting the structure from damage. The buffer head can be a silicone head or other flexible or elastic structure.

Claims

1. A drawer slide rail structure for a vehicle-mounted refrigerator, characterized in that: It includes a box body (1) and a drawer (2) that can be pulled out and pulled in and out of the box body (1). The box body (1) is provided with a guide groove (3). The drawer (2) is connected to at least three guide rollers (4) that can roll on the guide groove (3). Each guide roller (4) is arranged along the length of the guide groove (3). Adjacent guide rollers (4) abut against the two side walls of the guide groove (3) in an alternating manner. The box body (1) is provided with two guide rails (30) along the pull-out direction of the drawer (2), and the guide groove (3) is provided on the guide rails (30); Both guide rails (30) are inclined with their slots facing outwards.

2. The drawer slide rail structure of a vehicle refrigerator according to claim 1, characterized in that: The bottom of the drawer (2) is connected to a slide plate (5), and the guide pulley (4) is connected to the slide plate (5).

3. The drawer slide rail structure of a vehicle refrigerator according to claim 2, characterized in that: The slide plate (5) is parallel to the bottom of the guide groove (3), and the drawer (2) is provided with a mounting surface for connecting the slide plate (5), which is parallel to the bottom of the guide groove (3).

4. The drawer slide rail structure of a vehicle refrigerator according to any one of claims 1-3, characterized in that: The guide pulley (4) includes an O-shaped self-lubricating bearing and a first wear-resistant layer (41) sleeved on the outer wall of the self-lubricating bearing. The guide groove (3) has a first groove (31) on its groove wall that is adapted to the shape of the first wear-resistant layer (41).

5. A drawer slide rail structure for a vehicle-mounted refrigerator according to any one of claims 1-3, characterized in that: The guide pulley (4) includes a U-shaped self-lubricating bearing and a second wear-resistant layer (42) sleeved on the outer wall of the self-lubricating bearing. The guide groove (3) has an inwardly protruding flange (32) on its groove wall. The shape of the second wear-resistant layer (42) is adapted to the flange (32).

6. The drawer slide rail structure of a vehicle refrigerator according to claim 1, characterized in that: A coil spring (6) for pulling the drawer (2) outward is provided between the drawer (2) and the box (1), and a locking component (7) for locking the drawer (2) when it retracts is also provided between the drawer (2) and the box (1).

7. The drawer slide rail structure of a vehicle refrigerator according to claim 1, characterized in that: A slider (21) is fixedly connected to the drawer (2). A damping structure is provided between the box (1) and the slider (21). The damping structure includes a damper (8) provided on the slider (21). A gear (81) is provided on the damper (8). A rack (82) is provided on the box (1) in the inward and outward directions. The gear (81) and the rack (82) mesh with each other.

8. The drawer slide rail structure of a vehicle refrigerator according to claim 1, characterized in that: The two ends of the housing (1) are provided with limiting members (9) for limiting the movement distance of the slider (21), and the limiting members (9) are provided with flexible buffer heads.

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