Quick dismounting structure of drawer

Abstract

The application relates to a drawer quick dismounting structure and belongs to the field of vehicle-mounted refrigerators. The drawer quick dismounting structure comprises an adapter fixed on a box body and a lock catch fixed at the rear end of a slide rail, the lock catch is provided with first protrusions at one end in the circumferential direction and is spaced from each other, first clamping gaps are formed between the adjacent first protrusions, the adapter is provided with second protrusions at one end in the circumferential direction, the positions of the second protrusions correspond to the first clamping gaps, second clamping gaps for clamping the first protrusions are formed between the adjacent second protrusions, and the second protrusions are characterized in that one end of each second protrusion is constructed as a guide inclined surface, the guide inclined surface is in abutment with the first protrusion, and the guide inclined surface guides the first protrusion clamped into the second clamping gap. The application has the effects of simple installation, time and labor saving.

Description

Technical Field

[0001] This application relates to the field of vehicle refrigerators, and more particularly to a drawer quick-release structure. Background Technology

[0002] As the global automotive industry undergoes a profound transformation towards electrification, intelligentization, and connectivity, the role of the car is evolving from a traditional "means of transportation" to a new "mobile living space." Users' demands for cars are no longer limited to basic transportation; they extend to diverse scenarios such as leisure and entertainment, mobile office work, and outdoor camping. Under this trend, in-car refrigerators, which can ensure the preservation of food and beverages and improve the quality and convenience of travel, have gradually transformed from a high-end optional extra or outdoor-specific equipment into an important in-car device that meets users' "scenario-based essential needs."

[0003] Existing drawer locking mechanisms typically include an adapter fixed to the refrigerator body, a drive assembly for rotating the adapter, and a latch fixed to the drawer slide rail. One end of the latch engages with the drawer frame, one end of the adapter is fixedly connected to the drive assembly, and the other end of the latch is coaxially connected to the other end of the adapter. When the drawer needs to be removed entirely for maintenance or replacement, the drive assembly activates the adapter, causing the latch to rotate and unlock, allowing the drawer to be removed. After the drawer is pulled out, the latch resets under the action of a reset mechanism (such as a torsion spring). However, at this time, the adapter has rotated at a certain angle and deviated from its initial mating position. Therefore, when reinstalling the drawer, it is difficult to accurately align the adapter with the latch because the adapter has been deflected, making it difficult to install the drawer smoothly. To solve this problem, the current method is usually to remove the entire vehicle refrigerator from the vehicle and manually pull the adapter back from the rear of the refrigerator to rotate it back to the mating angle. However, this method is time-consuming, labor-intensive, and very inconvenient. Utility Model Content

[0004] To address the problems of difficulty in disassembling and reassembling existing drawer locking structures in vehicle refrigerators, as well as poor maintenance convenience, this application provides a quick-release drawer structure.

[0005] The drawer quick-release structure provided in this application adopts the following technical solution: A quick-release drawer structure includes an adapter fixed to a cabinet and a latch fixed to the rear end of a drawer slide. The latch has a first protrusion spaced circumferentially at one end facing the adapter, and a first engagement notch is formed between adjacent first protrusions. The adapter has a second protrusion spaced circumferentially at one end facing the latch, and the position of the second protrusion corresponds to the first engagement notch. A second engagement notch is formed between adjacent second protrusions for the first protrusion to engage. The end of the second protrusion facing the second engagement notch is constructed as a guide slope, and the guide slope abuts against the first protrusion to guide the first protrusion into the second engagement notch.

[0006] By adopting the above technical solution, when reinstalling the drawer, the operator only needs to apply axial thrust to push the latch towards the adapter. Even if the adapter is offset by a certain angle after the drawer is completely removed, the first protrusion abuts against the guide slope under the action of the guide slope. As the axial thrust continues, the first protrusion slides along the guide slope. The guide slope decomposes the axial thrust into a tangential component acting on the adapter, thereby driving the adapter to rotate until the second engaging notch and the first protrusion rotate to the correctly aligned engaging position. After that, the first protrusion smoothly engages with the second engaging notch under the action of axial thrust, completing the locking and installation of the drawer. Compared with the prior art, this application does not require manually moving the adapter from the back of the drawer to reset it, thus achieving the reinstallation of the drawer. Therefore, it is not necessary to disassemble the entire car refrigerator, saving time and manpower.

[0007] Preferably, the guiding inclined surface is a helical surface.

[0008] Preferably, the end face of the second protrusion facing away from the guide slope is provided with a guide surface, which is used to guide the first protrusion to engage with the second engagement notch.

[0009] Preferably, it further includes a driving component and a push rod, the push rod being coaxially and fixedly connected to the adapter, the driving component being used to drive the push rod to move circumferentially, the adapter including a driving part and a rotating part, the driving part being connected to the push rod, the rotating part being connected to the latch, the driving part being provided with a mating groove coaxial with the central axis of the adapter, the mating groove being used for the end of the push rod to be engaged.

[0010] Preferably, the push rod has a boss at the end facing the adapter, and the center of the drive part has a recess for the boss to engage, the recess being connected to the mating groove and the two having the same central axis.

[0011] Preferably, the push rod has a limiting protrusion circumferentially located at the end facing the adapter, and the drive part has a limiting groove for the limiting protrusion to be engaged, the limiting groove being connected to the docking groove.

[0012] Preferably, the driving part includes a base and a mounting plate. The mounting plate is an arc-shaped part coaxial with the base. The mounting plate protrudes from the circumferential edge of the base. The limiting groove is formed on the mounting plate. The mounting plate surrounds and forms the docking groove.

[0013] Preferably, a limiting notch is formed on the outer circumference of the base, the limiting notch accommodates a limiting protrusion, and there is a gap between the limiting protrusion and the inner wall of the limiting notch. The limiting protrusion is used to limit the rotation angle of the adapter.

[0014] Preferably, the limiting protrusion is made of foam material, and the limiting protrusion provides a stop and cushion for the adapter.

[0015] Preferably, the latch includes a connecting part and a locking part. The connecting part engages with the adapter. The locking part is formed by radially extending from the outer periphery of the connecting part. The locking part has a locking tongue at the end away from the connecting part. Rotation of the connecting part causes the locking part to rotate so that the locking tongue is unlocked.

[0016] In summary, this application includes at least one of the following beneficial technical effects: Easy to install, saving time and manpower, by using the guide ramp, the axial linear motion during drawer installation is automatically converted into the rotational motion required by the adapter, so that it can be accurately reset to the docking angle without any manual intervention. Users or maintenance personnel can quickly complete the reinstallation of the drawer without disassembling the entire vehicle refrigerator. Precise positioning improves operational reliability. The limiting protrusion restricts the offset angle of the adapter, ensuring that the first protrusion can fall on the guide slope to achieve further docking. The product is highly durable, avoiding damage to components such as the motor and push rod that may be caused by frequent disassembly of the refrigerator or rough manual reset, thus reducing the failure rate and extending the product's service life. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the drawer quick-release structure installed on a vehicle refrigerator in an embodiment of this application.

[0018] Figure 2 This is an exploded view of the drawer quick-release structure installed on a vehicle refrigerator according to an embodiment of this application.

[0019] Figure 3 This is an exploded view of the drawer quick-release structure in the embodiments of this application.

[0020] Figure 4 This is a three-dimensional structural diagram of the adapter in the embodiments of this application.

[0021] Figure 5 This is a schematic diagram of the connection between the adapter and the latch in an embodiment of this application.

[0022] Figure 6 This is another exploded view of the drawer quick-release structure in the embodiments of this application.

[0023] Figure 7 This is another exploded view of the drawer quick-release structure in the embodiments of this application.

[0024] Figure 8 This is a cross-sectional view of the drawer quick-release structure in the installed state in the embodiments of this application.

[0025] Figure 9 This is a cross-sectional view of the drawer quick-release structure in the embodiments of this application.

[0026] Figure 10 This is a partial structural diagram of the foam skeleton in an embodiment of this application.

[0027] Figure 11 This is a partial structural diagram of the latch being installed on the drawer assembly in an embodiment of this application.

[0028] Figure 12 This is another exploded view of the drawer quick-release structure in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Drawer assembly; 21. Slide rail; 22. Frame; 3. Adapter; 4. Drive assembly; 5. Lock; 51. First protrusion; 52. First engagement notch; 31. Second protrusion; 32. Second engagement notch; 33. Drive unit; 34. Rotating unit; 311. Guide slope; 312. Guide surface; 41. Drive component; 42. Push rod; 420. Abutment arm; 331. Connecting groove; 421. Boss; 332. Groove; 6. Fastener; 422. Limiting protrusion; 333. Limiting groove; 334. Base; 335. Mounting plate; 336. Limiting notch; 7. Limiting protrusion; 8. Foamed skeleton; 81. Enclosing part; 53. Connecting part; 54. Locking part; 541. Lock tongue; 221. Buckle; 9. Return spring. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0031] This application discloses a quick-release drawer structure. (Refer to...) Figure 1 and Figure 2The car refrigerator includes a cabinet 1 and a drawer assembly 2. The drawer assembly 2 includes a slide rail 21 fixed inside the cabinet 1 and a frame 22 mounted on the slide rail 21. The frame 22 is used to store items and is slidably installed inside the cabinet 1 via the slide rail 21. The quick-release drawer structure includes an adapter 3 fixed to the cabinet 1, a drive assembly 4 for driving the adapter 3 to rotate, and a latch 5 fixed to the rear end of the slide rail 21. One end of the adapter 3 is connected to the drive assembly 4, and the other end of the adapter 3 is coaxially connected to one end of the latch 5, so that the latch 5 can rotate synchronously with the adapter 3 under the action of the drive assembly 4. The other end of the latch 5 is engaged and fixed to the frame 22 to prevent the frame 22 from sliding away from the latch 5 along the slide rail 21. Therefore, the latch 5 is in a locked state, so that the frame 22 is in a closed state. When it is necessary to open the frame 22 to retrieve an item, the drive assembly 4 drives the adapter 3 to rotate the latch 5 to the unlocked state, allowing the frame 22 to open. After the frame 22 is opened, the latch 5 resets. When closing the frame 22, the frame 22 re-engages with the latch 5 using axial thrust, restoring the latch 5 to its locked state. When it is necessary to remove the drawer assembly 2 as a whole, the drive assembly 4 drives the adapter 3 to rotate, causing the latch 5 to rotate and release the latch 5 from the frame 22, allowing the drawer assembly 2 to be disassembled as a whole. When it is necessary to reinstall the drawer assembly 2, the frame 22 is engaged with one end of the latch 5, and the adapter 3 is axially aligned with the other end of the latch 5, allowing the adapter 3 to drive the latch 5 to rotate via the drive assembly 4.

[0032] Reference Figure 3 The end of the latch 5 connected to the adapter 3 is provided with first protrusions 51 spaced apart circumferentially, and a first engaging notch 52 is formed between adjacent first protrusions 51. Correspondingly, the end of the adapter 3 connected to the latch 5 is provided with a second engaging notch 32 that mates with the first protrusions 51, and a second protrusion 31 that mates with the first engaging notch 52. The first protrusion 51 engages with the second engaging notch 32 and the second protrusion 31 engages with the first engaging notch 52, so that the adapter 3 and the latch 5 are axially engaged.

[0033] Reference Figure 2 and Figure 3 The adapter 3 includes a driving part 33 and a rotating part 34. The driving part 33 is connected to the driving assembly 4, and the rotating part 34 is connected to the latch 5. The end of the second protrusion 31 facing the second engaging notch 32 is configured as a guide slope 311 to accommodate... Figure 4Taking the direction as an example, the adapter 3 is in a vertical state, with the rotating part 34 at the top and the driving part 33 at the bottom. The guide slope 311 is inclined counterclockwise from bottom to top. When the latch 5 axially aligns with the adapter 3 and the first protrusion 51 is inserted into the second engagement notch 32, the first protrusion 51 first abuts against the guide slope 311. The guide slope 311 decomposes the axial thrust applied by the first protrusion 51 into a tangential component force acting on the adapter 3, thereby driving the adapter 3 to rotate until the second engagement notch 32 and the first protrusion 51 rotate to the correctly aligned engagement position. After that, the first protrusion 51 smoothly engages with the second engagement notch 32 under the action of the axial thrust.

[0034] Reference Figure 4 and Figure 5 In a preferred embodiment, the guide ramp 311 is a helical surface, with the slope of the outer side of the guide ramp 311 being smaller than the slope of the inner side. The helical surface design ensures that the first protrusion 51 makes line contact with the guide ramp 311, resulting in better contact stability. Furthermore, the line contact reduces contact stress, improves load-bearing capacity, and extends the fatigue life of the latch 5. The end face of the second protrusion 31 facing away from the guide ramp 311 has a guide surface 312 for... Figure 4 Taking the direction as an example, the guide surface 312 is inclined clockwise from bottom to top. When the latch 5 is axially inserted into the adapter 3, the guide surface 312 guides the first protrusion 51 to move into the second engagement notch 32.

[0035] Reference Figure 6 The drive assembly 4 includes a drive member 41 and a push rod 42. One end of the push rod 42 is coaxially and fixedly connected to the drive unit 33, and the other end of the push rod 42 is connected to the drive member 41. The drive member 41 is used to drive the push rod 42 to move circumferentially. In one embodiment, the drive member 41 is a motor, and the output shaft of the motor is coaxially and fixedly connected to the end of the push rod 42 away from the adapter 3. In this application, the drive member 41 is preferably a solenoid valve, which abuts against the end of the push rod 42 away from the adapter 3. More specifically, the end of the push rod 42 away from the adapter 3 extends radially with an abutment arm 420 to facilitate the solenoid valve to push the push rod 42 to move.

[0036] Reference Figure 7The drive unit 33 is provided with a mating groove 331 that mates with the end of the push rod 42. The mating groove 331 is coaxial with the central axis of the adapter 3 and the central axis of the push rod 42. One end of the push rod 42 is fitted into the mating groove 331. The end of the push rod 42 is also provided with a boss 421. The mating groove 331 is provided with a groove 332 for the boss 421 to be engaged. The groove 332 is formed by recessing from the center of the drive unit 33 toward the rotating part 34. The central axis of the groove 332 is the same as that of the mating groove 331. Furthermore, a fastener 6 is provided between the push rod 42 and the adapter 3 to fix the two together. The fastener 6 is preferably a fastening bolt. The fastening bolt passes through the drive unit 33 from the rotating part 34 and through the boss 421 to fix the push rod 42 and the adapter 3 together.

[0037] The end of the push rod 42 connected to the adapter 3 is provided with a limiting protrusion 422. The limiting protrusion 422 is circumferentially distributed on the outer peripheral wall of the end of the push rod 42 connected to the adapter 3. The drive unit 33 is provided with a limiting groove 333 for the limiting protrusion 422 to be engaged. The limiting groove 333 is connected to the docking groove 331. When one end of the push rod 42 is inserted into the docking groove 331, the limiting protrusion 422 is engaged in the limiting groove 333 to restrict the circumferential rotation of the push rod 42. The drive unit 33 includes an integrally formed base 334 and a mounting plate 335. The mounting plate 335 is an arc-shaped part coaxial with the base 334. The arc-shaped mounting plate 335 protrudes from the circumferential edge of the base 334 and surrounds to form the docking groove 331. The groove 332 is located in the center of the base 334, and the limiting groove 333 is formed on the mounting plate 335.

[0038] Reference Figure 8 and Figure 9 A limiting notch 336 is provided on the outer periphery of the base 334. The limiting notch 336 contains a limiting protrusion 7. There is a gap between the limiting protrusion 7 and the inner wall of the limiting notch 336. The limiting protrusion 7 can only rotate a certain angle in the gap between the limiting protrusion 7 and the limiting notch 336, thereby limiting the rotation angle of the adapter 3 and preventing the adapter 3 from over-rotating, making it difficult for the first protrusion 51 to fall into the second engaging notch 32.

[0039] Reference Figure 8 and Figure 10 In a preferred embodiment, a foamed skeleton 8 is fixed to the end of the frame 22. A limiting protrusion 7 is formed on the side of the foamed skeleton 8 facing the frame 22. The limiting protrusion 7 made of foamed material can provide a stop and buffer for the adapter 3. A surrounding part 81 is provided on the side of the foamed skeleton 8 away from the frame 22. The surrounding part 81 has an inner cavity. The surrounding part 81 passes through the housing 1. The push rod 42 passes through the inner cavity of the surrounding part and connects to the adapter 3.

[0040] Reference Figure 11 and Figure 12The latch 5 includes a connecting part 53 and a locking part 54. The connecting part 53 is used to engage with the adapter 3. A first protrusion 51 is provided on the connecting part 53. The locking part 54 is formed by radially extending from the outer periphery of the connecting part 53. The end of the locking part 54 away from the connecting part 53 has a locking tongue 541. The frame 22 is provided with a latch 221 that cooperates with the locking tongue 541. When the frame 22 is axially pushed into the rear end of the slide rail 21, the latch 221 engages with the locking tongue 541, and the locking tongue 541 restricts the axial retraction of the latch 221. Under the action of axial force, the locking tongue 541 is difficult to disengage from the latch 221, but after the locking part 54 rotates circumferentially at a certain angle, the locking tongue 541 can disengage from the latch 221. The latch 5 is also provided with a return spring 9 for the latch 5 to reset. When the locking part 54 rotates circumferentially to disengage the locking tongue 541 from the latch 221 and the frame 22 is pulled out, the latch 5 can reset under the action of the return spring 9. The return spring 9 is preferably a torsion spring.

[0041] The implementation principle of the quick-release drawer structure in this application embodiment is as follows: When the drawer assembly 2 is completely removed, the adapter 3 rotates, causing the second engagement notch 32 to deviate from its original mating position. When the drawer assembly 2 needs to be reinstalled, the latch 5 is axially inserted into the adapter 3, and the first protrusion 51 is guided along the guide surface 312 to the second engagement notch 32. At the same time, the first protrusion 51 abuts against the guide slope 311. Under the guidance of the guide slope 311, which is constructed as a spiral surface, the first protrusion 51 causes the adapter 3 to rotate to the engagement position where the second engagement notch 32 and the first protrusion 51 are correctly aligned. Then, the first protrusion 51 smoothly engages with the second engagement notch 32, so that the adapter 3 and the latch 5 are mated.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-release drawer structure, comprising an adapter (3) fixed to a cabinet (1) and a latch (5) fixed to the rear end of a slide rail (21), wherein the latch (5) has a first protrusion (51) spaced circumferentially at one end facing the adapter (3), and a first engaging notch (52) is formed between adjacent first protrusions (51); the adapter (3) has a second protrusion (31) circumferentially at one end facing the latch (5), the position of the second protrusion (31) corresponds to the first engaging notch (52), and a second engaging notch (32) is formed between adjacent second protrusions (31) for engaging the first protrusion (51), characterized in that: The end of the second protrusion (31) facing the second engagement notch (32) is configured as a guide slope (311), which abuts against the first protrusion (51) to guide the first protrusion (51) into the second engagement notch (32).

2. The drawer quick-release structure according to claim 1, characterized in that: The guide slope (311) is a spiral surface.

3. The drawer quick-release structure according to claim 2, characterized in that: The second protrusion (31) has a guide surface (312) on its end face away from the guide slope (311), and the guide surface (312) is used to guide the first protrusion (51) to engage with the second engagement notch (32).

4. The drawer quick-release structure according to claim 3, characterized in that: It also includes a drive component (41) and a push rod (42). The push rod (42) is coaxially fixedly connected to the adapter (3). The drive component (41) is used to drive the push rod (42) to move circumferentially. The adapter (3) includes a drive part (33) and a rotating part (34). The drive part (33) is connected to the push rod (42). The rotating part (34) is connected to the latch (5). The drive part (33) is provided with a mating groove (331) coaxial with the central axis of the adapter (3). The mating groove (331) is used for the end of the push rod (42) to be engaged.

5. The drawer quick-release structure according to claim 4, characterized in that: The push rod (42) has a boss (421) at the end facing the adapter (3), and the center of the drive part (33) has a groove (332) for the boss (421) to be inserted into. The groove (332) is connected to the docking groove (331) and the two have the same central axis.

6. The drawer quick-release structure according to claim 4, characterized in that: The push rod (42) has a limiting protrusion (422) circumferentially located at the end facing the adapter (3), and the drive part (33) has a limiting groove (333) for the limiting protrusion (422) to be engaged. The limiting groove (333) is connected to the docking groove (331).

7. The drawer quick-release structure according to claim 4, characterized in that: The drive unit (33) includes a base (334) and a mounting plate (335). The mounting plate (335) is an arc-shaped part coaxial with the base (334). The mounting plate (335) protrudes from the circumferential edge of the base (334). The limiting groove (333) is opened on the mounting plate (335). The mounting plate (335) surrounds to form the docking groove (331).

8. The drawer quick-release structure according to claim 7, characterized in that: The base (334) has a limiting notch (336) along its outer periphery. The limiting notch (336) contains a limiting protrusion (7). There is a gap between the limiting protrusion (7) and the inner wall of the limiting notch (336). The limiting protrusion (7) is used to limit the rotation angle of the adapter (3).

9. The drawer quick-release structure according to claim 8, characterized in that: The limiting protrusion (7) is made of foam material and provides a stop and buffer for the adapter (3).

10. The drawer quick-release structure according to claim 1, characterized in that: The latch (5) includes a connecting part (53) and a locking part (54). The connecting part (53) engages with the adapter (3). The locking part (54) is formed by radially extending from the outer periphery of the connecting part (53). The locking part (54) has a latch (541) at one end away from the connecting part (53). The connecting part (53) rotates to drive the locking part (54) to rotate so that the latch (541) is unlocked.

Images