Drawer structure

Abstract

According to the drawer structure, by arranging a lock catch assembly, a sliding base and a power pulling device, when the drawer is closed, the drawer is pushed towards the interior of a drawer shell, the drawer abuts against the sliding base in the backward moving process and drives the sliding base to move backward at the same time, and when the drawer moves to the innermost side of the drawer shell, the power pulling device is pulled out. When the drawer needs to be pulled out, the lock catch assembly is controlled to be opened, the power pulling device pulls the sliding base to move forwards to the maximum stroke, at the moment, the drawer is driven by the sliding base to move forwards by a large distance, a user only needs to slightly pull the drawer forwards, and then the drawer can be pulled out. In this way, the action range of opening the drawer by a user is small, the human body experience feeling is good, the drawer can rapidly move forwards under the pulling of the power pulling device, the opening speed of the drawer is high, the drawer can move forwards by most of the stroke under the pulling of the power pulling device, and manpower needed for pulling the drawer is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of drawers, and in particular relates to a drawer structure. Background Art

[0002] Refrigerators are a common electrical appliance and there are many types of them, such as household refrigerators, car refrigerators, etc. Refrigerators are generally provided with drawers for storing food, and food can be taken out by pulling out the drawers. Existing refrigerator drawers generally have guide rails on the inner wall of the drawer shell, and sliders on both sides of the drawer. The sliders cooperate with the guide rails to make the drawer slide along the guide rails to achieve pulling out or pushing back the drawer. However, the existing drawer structure is relatively simple, lacks a locking structure and cannot lock the drawer. For car refrigerators, when the vehicle moves the drawer on a bumpy road, it will constantly collide with the drawer shell or cause the door of the drawer shell to be knocked open, and the drawer needs to be pulled manually throughout the whole process of opening the drawer. The large pulling stroke results in a large movement amplitude, resulting in a poor human experience. It takes a long time from the beginning of pulling the drawer to the drawer being completely pulled out. When the food stored in the drawer is large and heavy, it is more laborious to pull. Summary of the invention

[0003] (I) Purpose of the invention

[0004] In order to overcome the above shortcomings, the purpose of the present invention is to provide a drawer structure to solve the technical problems that the existing drawers lack a locking structure and cannot be locked, the drawers are easily caused to constantly collide with the drawer door on bumpy roads, the movement amplitude of fully opening the drawer is large and the time is long, and when the food stored in the drawer is large and heavy, it is difficult to pull it.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0007] A drawer structure comprises: a base, a sliding seat movably arranged on the base, a power pulling device arranged on the base and connected to the sliding seat, a drawer movably arranged on the sliding seat, a snap block arranged at the bottom of the drawer, and a lock assembly arranged on the base, which can snap with the snap block to lock the drawer and the sliding seat when the drawer drives the sliding seat to move synchronously to a position corresponding to it, or can be controlled to disengage from the snap block so that the sliding seat drives the drawer to move forward to the maximum stroke of the sliding seat under the pulling of the power pulling device, wherein the drawer can also be pulled by an external force on the sliding seat to continue to move forward until it moves to the maximum stroke of the drawer when the sliding seat moves to the maximum stroke;

[0008] The present application is provided with a lock component, a sliding seat, and a power pulling device. When the drawer is closed, the drawer is pushed into the inside of the drawer shell. During the backward movement of the drawer, the drawer abuts against the sliding seat and moves backward with the sliding seat at the same time. When the drawer moves to the innermost side of the drawer shell, the lock component locks the engaging block of the drawer. At this time, the drawer and the sliding seat are locked to the inside of the drawer shell at the same time. When the drawer needs to be pulled out, the lock component is controlled to open. At this time, the lock component will be separated from the engaging block to unlock, and the power pulling device will pull the sliding seat forward to its maximum stroke. At this time, the drawer has been driven by the sliding seat to move forward a long distance. The user only needs to pull the drawer forward a little bit, and the drawer will continue to move forward a short distance on the sliding seat until the entire drawer is fully opened. In this way, the user's action amplitude of opening the drawer is small, and the human body experience is good. Under the pulling of the power pulling device, the drawer can move forward quickly, and the opening speed of the drawer is fast. Under the pulling of the power pulling device, the drawer can move forward most of the stroke, saving the manpower required for pulling the drawer. Since the drawer is set with a two-stage opening method, the drawer will not pop out directly and hit the human body, thereby ensuring the safety of the human body.

[0009] In some embodiments, a second limit block is provided at the front side of the engaging block at the bottom of the drawer, and a third limit block abutting against the second limit block is provided on the sliding seat at the maximum travel position of the drawer;

[0010] The drawer can press the rear side wall of the sliding seat to lock the sliding seat through the second limit block. In addition, when the drawer slides on the sliding seat, the second limit block moves to the position of the third limit block to limit the maximum movement stroke of the drawer on the sliding seat.

[0011] In some embodiments, the lock assembly includes: a lock with two sides hinged on the base, one end of the lock is a locking end and the other end is a force-bearing end, a torsion spring with one end connected to the base and the other end wound on the lock, and an electric elastic device arranged at a position relative to the force-bearing end of the lock, whose push rod is controlled to extend forward to push the force-bearing end of the lock to swing counterclockwise so that the locking end swings downward away from the locking block to unlock, wherein, after the push rod of the electric elastic device retracts backward and disengages from the force-bearing end, the torsion spring can drive the locking end of the lock to swing upward and reset.

[0012] In some embodiments, the engaging block forms an arc-shaped structure on one side facing the lock buckle;

[0013] By setting the side of the locking block into an arc-shaped structure, when the drawer moves backward and the locking block abuts against the lock, the locking end of the lock can swing downward counterclockwise to avoid it, so that the locking block can move backward smoothly. Then, under the action of the elastic force of the torsion spring, the locking end of the lock can swing upward clockwise to engage the locking block.

[0014] In some embodiments, the base further includes: first guide rails arranged on both sides of the base and slidably matched with the sliding seat, wherein the length of the first guide rails is consistent with the maximum stroke of the sliding seat;

[0015] The first guide rail is provided to ensure the directionality of the sliding of the sliding seat and to limit the maximum stroke of the sliding seat.

[0016] In some embodiments, the invention further comprises: second guide rails arranged on both sides of the base and slidably matched with the drawer, wherein the length of the second guide rails is consistent with the maximum travel of the drawer;

[0017] The drawer slides with the second guide rail throughout to ensure directionality.

[0018] In some embodiments, the powered pulling device is a coil spring;

[0019] The coil spring is stretched when the drawer and the sliding seat are pushed into the innermost side of the drawer shell, and is retracted when the sliding seat and the drawer are pulled forward.

[0020] In some embodiments, the power pulling devices are multiple and symmetrically arranged;

[0021] By providing a plurality of symmetrical power pulling devices, the pulling force applied when pulling the drawer forward is more balanced, thereby preventing the drawer from shaking and ensuring the stability of the drawer.

[0022] In some embodiments, it further comprises: a rack disposed on the base and extending along the sliding direction of the sliding seat, wherein a damping gear meshing with the rack is rotatably disposed at the bottom of the sliding seat;

[0023] The meshing and rotation of the rack and the damping gear can not only ensure the direction of movement of the sliding seat, but also apply a certain resistance to the sliding seat when the sliding seat is pulled forward by the coil spring, thereby preventing the sliding seat from being hit, making noise and being damaged when it is instantly pulled forward by the coil spring to the maximum stroke position.

[0024] In some embodiments, it further comprises: a damping roller rotatably disposed on the base near the front end of the drawer shell and abutting against the bottom of the drawer;

[0025] By setting a damping roller, when the drawer is not affected by the pulling force of the power pulling device in the rear half, a certain resistance can be generated on the drawer, so that the drawer will not be pulled out suddenly. There will also be a certain resistance when pushing the drawer backward to lock it. The damping roller can control the operating force of opening and closing the drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the drawer structure of the present invention installed in the drawer shell;

[0027] Figure 2It is a structural schematic diagram of a drawer in the drawer structure of the present invention;

[0028] Figure 3 is a cross-sectional view of the drawer structure of the present invention;

[0029] Figure 4 It is a structural schematic diagram of a default drawer in the drawer structure of the present invention;

[0030] Figure 5 It is a structural schematic diagram of a default drawer and a lock assembly in the drawer structure of the present invention;

[0031] Figure 6 yes Figure 5 A partial enlarged view of part I.

[0032] Reference numerals:

[0033] 1. Drawer shell; 2. Cabinet door; 3. Drawer; 301. Locking block; 302. Second limit block; 303. First limit block; 4. Electric spring; 401. Push rod; 5. Lock; 6. Torsion spring; 7. Sliding seat; 701. Third limit block; 8. Power pulling device; 9. Rack; 10. First guide rail; 11. Second guide rail; 12. Damping roller; 13. Base; 14. Damping gear. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0035] See also Figure 1-Figure 4 The present invention provides a drawer structure, comprising: a power pulling device 8 on a base 13 and connected to a sliding seat 7, a drawer 3 movably arranged on the sliding seat 7, a snap block 301 arranged at the bottom of the drawer 3, and a locking assembly arranged on the base 13, which can be engaged with the snap block 301 to lock the drawer 3 and the sliding seat 7 when the drawer 3 drives the sliding seat 7 to move synchronously to a corresponding position, or can be controlled to disengage from the snap block 301 so that the sliding seat 7 drives the drawer 3 to move forward to the maximum stroke of the sliding seat 7 under the pulling of the power pulling device 8, wherein the drawer 3 can also be pulled by an external force on the sliding seat 7 to continue moving forward until it moves to the maximum stroke of the drawer 3 when the sliding seat 7 moves to the maximum stroke.

[0036] Specifically, the drawer structure is installed in a drawer shell 1 , and a cabinet door 2 is disposed on the outermost side of the drawer shell 1 .

[0037] See also Figure 2 , Figure 5 and Figure 6 Specifically, a locking block 301 and a second limiting block 302 are respectively provided at the bottom of the drawer 3, the second limiting block 302 is located in front of the locking block 301, and a third limiting block 701 is provided on the front side of the sliding seat 7 at the maximum travel position of the drawer 3.

[0038] See also Figure 3 and Figure 4 Specifically, the lock assembly includes: a lock 5, a torsion spring 6 and an electric spring 4. The two sides of the lock 5 are respectively hinged on the base 13. The lock 5 is in a long strip shape and has an angled cross-section. One end is a locking end and the other end is a force-bearing end. There are two torsion springs 6, one end of each torsion spring 6 is connected to the base 13, and the other end is wound around the lock 5. The push rod 401 of the electric spring 4 is arranged corresponding to the force-bearing end of the lock 5.

[0039] Specifically, the power pulling device 8 is a coil spring.

[0040] Specifically, the side of the engaging block 301 facing the lock buckle 5 forms an arc structure.

[0041] Specifically, the present application provides a control panel, which is electrically connected to the electric spring 4 and can control the push rod 401 of the electric spring 4 to move forward and backward.

[0042] Specifically, a mechanical button can be provided on the control panel, and the user can send a signal to the control panel by pressing the mechanical button to control the action of the electric spring 4. Preferably, a voice control module or a touch control module can also be provided on the control panel, and the user can control the action of the electric spring 4 by voice, or by touch.

[0043] Specifically, the present application sets first guide rails 10 on both sides of the base 13, and the length of the first guide rails 10 is consistent with the maximum stroke of the sliding seat 7. Alternatively, a first limit block 303 is set at the maximum stroke position of the sliding seat 7 to block the sliding seat 7 when it slides to the maximum stroke position.

[0044] Specifically, the present application sets second guide rails 11 on both sides of the base 13 , and the length of the second guide rails 11 is consistent with the length of the base 13 .

[0045] The locking and opening process of the drawer 3 is described in detail below:

[0046] When the drawer 3 is closed, the user pushes the drawer 3 to move it toward the inside of the drawer shell 1. During the pushing process, the second limit block 302 of the drawer 3 will abut against the rear end wall of the sliding seat 7. At this time, the drawer 3 will drive the sliding seat 7 to move backward at the same time, and the coil spring 8 will be stretched to unwind during the movement. When the drawer 3 moves to the innermost side of the drawer shell 1, the arc surface of the engaging block 301 will touch the locking end of the lock buckle 5, causing the locking end of the lock buckle 5 to swing counterclockwise to avoid it. At this time, the torsion spring 6 is twisted to generate elastic force. As the drawer 3 continues to move backward, the engaging block 301 passes the locking end of the lock buckle 5, and the torsion spring 6 drives the locking end of the lock buckle 5 to swing back in the clockwise direction. After the user lets go, the drawer 3 will have a tendency to move forward under the pull of the coil spring 8, but the drawer 3 cannot move forward under the obstruction of the locking end of the lock buckle 5. At this time, the drawer 3 and the sliding seat 7 are locked by the lock buckle 5;

[0047] When the drawer 3 is opened, the user only needs to press the opening button on the control panel, and the control panel outputs an instantaneous voltage to the electric spring 4. The electric spring push rod 401 pops out and pushes the force-bearing end of the lock buckle 5 to swing counterclockwise. At this time, the locking end also swings counterclockwise to disengage from the locking block 301. In the absence of the locking action of the locking block 301, the coil spring 8 can pull the sliding seat 7 to move forward. Since the drawer 3 is on the sliding seat 7, the sliding seat 7 can simultaneously drive the drawer 3 to move forward. When the sliding seat 7 moves to the maximum stroke position of the first guide rail 10, the sliding seat 7 and the drawer 3 both stop moving forward. Then the user can manually pull the drawer 3, and the drawer 3 continues to move forward on the sliding seat 7. When the second limit block 302 of the drawer 3 moves to a position abutting against the third limit block 701 of the sliding seat 7, the drawer 3 moves to the maximum stroke. At this time, the drawer 3 is fully opened, and the coil spring 8 is continuously wound during the process of the sliding seat 7 and the drawer 3 moving forward.

[0048] Specifically, the side walls of the drawer 3 extend downward by a certain length, so that a certain avoidance space is formed between the bottom surface of the drawer 3 and the sliding seat 7, so as to prevent the second limit block 302 from directly touching the sliding seat 7 during the sliding process of the drawer 3.

[0049] Specifically, a plurality of coil springs 8 can be symmetrically arranged and connected to the sliding seat 7 at the same time, so that the sliding seat 7 can be evenly stressed during its forward movement, thereby preventing the sliding seat 7 from deviating to one side and causing unsmooth sliding.

[0050] See also Figure 4Preferably, the present application further provides a rack 9 on the base 13, and the rack 9 extends along the sliding direction of the sliding seat 7. Specifically, a damping gear 14 meshing with the rack 9 is provided at the bottom of the sliding seat 7, so that when the sliding seat 7 slides, the damping gear 14 cooperates with the rack 9 to ensure the directionality of the movement of the sliding seat 7. In addition, a certain resistance can be applied to the sliding seat 7 when the sliding seat 7 is pulled forward by the coil spring 8, so as to prevent the sliding seat from being hit by the first limit block 303 to make noise and be damaged when the sliding seat is instantly pulled forward by the coil spring 8 to move to the maximum stroke position.

[0051] Preferably, the present application arranges a plurality of damping rollers 12 on the base 13, so that when the drawer 3 is pulled, the bottom of the drawer 3 can abut against the damping rollers 12, so that the drawer 3 is not pulled out suddenly, and there will be a certain resistance when the drawer 3 is pushed backward for locking. The damping rollers 12 can control the operating force of opening and closing the drawer 3. In addition, with the support of the damping rollers 12, the drawer 3 can also load more and heavier food.

[0052] Furthermore, a sensing device (sensor) can be set at a predetermined position of the base 13 (the maximum stroke position of the sliding seat 7). The sensing device is electrically connected to the lighting fixture. When the sensing device senses that the sliding seat 7 has moved to the maximum stroke position, it sends a signal to the lighting fixture to control the lighting fixture to light up. The user can pull the drawer 3 and take out food under sufficient light conditions.

[0053] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A drawer structure, characterized in that: include: A base (13), a sliding seat (7) movably arranged on the base (13), a power pulling device (8) arranged on the base (13) and connected to the sliding seat (7), a drawer (3) movably arranged on the sliding seat (7), a snap-fit ​​block (301) being arranged at the bottom of the drawer (3), and a locking assembly arranged on the base (13), capable of mutually snapping with the snap-fit ​​block (301) to lock the drawer (3) and the sliding seat (7) when the drawer (3) drives the sliding seat (7) to synchronously move to a position corresponding thereto, or being controlled to be disengaged from the snap-fit ​​block (301) so that the sliding seat (7) drives the drawer (3) to move forward to the maximum stroke of the sliding seat (7) under the pulling of the power pulling device (8), wherein the drawer (3) can also be pulled by an external force on the sliding seat (7) to continue to move forward until it moves to the maximum stroke of the drawer (3).

2. The drawer structure according to claim 1, characterized in that: A second limit block (302) is arranged at the bottom of the drawer (3) in front of the locking block (301), and a third limit block (701) abutting against the second limit block (302) is arranged on the sliding seat (7) at the maximum travel position of the drawer (3).

3. The drawer structure according to claim 1, characterized in that: The lock assembly comprises: a lock (5) hinged on the base (13) at both sides, one end of the lock (5) being a locking end and the other end being a force-bearing end, a torsion spring (6) having one end connected to the base (13) and the other end wound around the lock (5), and an electric elastic device (4) arranged at a position relative to the force-bearing end of the lock (5), wherein the push rod (401) of the electric elastic device (4) can be controlled to extend forward to push the force-bearing end of the lock (5) to swing counterclockwise so that the locking end is away from the locking block (301) for unlocking, wherein after the push rod (401) of the electric elastic device (4) retracts backward and disengages from the force-bearing end, the torsion spring (6) can drive the locking end of the lock (5) to swing clockwise and reset.

4. The drawer structure according to claim 1, characterized in that: The locking block (301) forms an arc-shaped structure on one side facing the lock buckle (5).

5. The drawer structure according to claim 1, characterized in that: Also includes: A first guide rail (10) is arranged on both sides of the base (13) and is slidably matched with the sliding seat (7), wherein the length of the first guide rail (10) is consistent with the maximum stroke of the sliding seat (7).

6. The drawer structure according to claim 1, characterized in that: Also includes: A second guide rail (11) is arranged on both sides of the base (13) and is slidably matched with the drawer (3), wherein the length of the second guide rail (11) is consistent with the maximum stroke of the drawer (3).

7. The drawer structure according to claim 1, characterized in that: The power pulling device (8) is a coil spring (8).

8. The drawer structure according to claim 1, characterized in that: The power pulling devices (8) are multiple and symmetrically arranged.

9. The drawer structure according to any one of claims 1 to 8, characterized in that: Also includes: A rack (9) is arranged on the base (13) and extends along the sliding direction of the sliding seat (7), wherein a damping gear (14) meshing with the rack (9) is rotatably arranged at the bottom of the sliding seat (7).

10. The drawer structure according to any one of claims 1 to 8, characterized in that: It also comprises a damping roller (12) rotatably arranged on the base (13) near the front end of the drawer shell (1) and abutting against the bottom of the drawer (3).

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