Automatic opening and closing drawer

Abstract

The utility model relates to the field of automatic drawers, in particular to an automatic opening and closing drawer. The automatic opening and closing drawer comprises a base, a first rope disc is rotationally installed on the base, the automatic opening and closing drawer further comprises a driving motor, a second rope disc is installed on an output shaft of the driving motor in a transmission mode, a rope is wound around the second rope disc and the first rope disc, elastic parts are arranged at the two ends of the rope, and a drawer is installed at the top of the base in a sliding mode. The base is provided with an elastic part, the elastic part is connected with the bottom of the drawer, the base is provided with a sensor, the sensor is rotatably provided with a roller, a magnet is embedded in the roller, the magnet and the sensor jointly form a Hall switch, and the top of the roller is in contact with the drawer. The drawer capable of being opened and closed automatically has the advantages that electric control can be triggered in a manual push-pull mode, so that automatic opening and closing are achieved, and the drawer conforms to the using habits of people.

Description

Technical Field

[0001] The utility model relates to the field of automatic drawers, in particular to an automatic opening and closing drawer. Background Art

[0002] In order to facilitate the opening and closing of the existing automatic drawers, the drawer is manually pushed a certain distance to control the operation of the electric control structure, so that the drawer moves automatically to close.

[0003] For example, the patent document with publication number CN219192012U discloses a push-close vehicle refrigerator driven by a rope, including a refrigerator body, a refrigeration chamber, a moving part, a reset part, a pull-out drawer, an end cover, a rope drum, a rope, a drive switch and a drive motor. When closing the pull-out drawer, the end cover is pushed hard to move the pull-out drawer toward the refrigeration chamber. During this process, the pull-out drawer drives the rope to move toward the inner end of the refrigeration chamber through the connecting part, and then synchronously drives the moving part to move toward the rear end of the refrigeration chamber. This technology uses a manual push-pull drawer to trigger a pressure sensor, and then controls the electronic control device to realize automatic opening and closing of the drawer.

[0004] However, the above technology can only realize the automatic closing of the drawer by pushing the trigger, and cannot realize the automatic opening of the drawer by pulling the trigger.

[0005] Therefore, an automatic switch drawer is proposed to solve the above technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide an automatic opening and closing drawer, which can trigger the electric control by manual pushing and pulling, thereby realizing automatic opening and closing, which conforms to people's usage habits.

[0007] The technical scheme adopted by the utility model to solve the problem is: an automatic switch drawer, comprising: a base, a first rope drum is rotatably installed on the base, and also comprises a driving motor, a second rope drum is transmission-installed on the output shaft of the driving motor, ropes are wound around the second rope drum and the first rope drum, elastic parts are provided at both ends of the rope, a drawer is slidably installed on the top of the base, the elastic part is connected to the bottom of the drawer, a sensor is provided on the base, a roller is rotatably installed on the sensor, a magnet is embedded in the roller, the magnet and the sensor together form a Hall switch, and the top of the roller contacts the drawer.

[0008] As a further improvement of the above technical solution, a mounting plate is provided at the bottom of the drawer, a slide rail is provided on the mounting plate, and the other side of the slide rail is fixedly connected to the base.

[0009] As a further improvement of the above technical solution, a mounting seat is provided at the bottom of the mounting plate, a notch is provided on the mounting seat, the elastic part is a spring, the spring is sleeved outside the rope, both ends of the rope are fixedly installed with limit blocks, the limit blocks are clamped in the notch, and the two ends of the spring are respectively abutted against the notch and the limit block.

[0010] As a further improvement of the above technical solution, a first hook is provided at the bottom of the drawer, and a hole is provided on the mounting plate, and the first hook corresponds to the hole.

[0011] As a further improvement of the above technical solution, a fixing plate is provided on one side of the sensor, the roller is installed between the fixing plate and the sensor, and a second hook is provided on both the sensor and the fixing plate.

[0012] As a further improvement of the above technical solution, a connecting column is provided on the sensor, and an insert rod is provided on the fixing plate, and the insert rod is plugged into the connecting column.

[0013] As a further improvement of the above technical solution, a compression spring is provided at the bottom of the sensor, and the bottom of the compression spring is connected to the base.

[0014] The beneficial effect of the utility model is that a rotatable magnet and a sensor are arranged to form a Hall switch, so that when the drawer is manually pushed and pulled to generate displacement, the sensor is triggered to control the drive motor to work, thereby realizing automatic opening and closing of the drawer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0017] Figure 2 for Figure 1 Exploded view shown;

[0018] Figure 3 for Figure 2 Another perspective structural schematic diagram shown;

[0019] Figure 4 This is a bottom view of the utility model after removing the base;

[0020] Figure 5 for Figure 4 An enlarged structural schematic diagram of part A is shown;

[0021] Figure 6 This is an exploded view of the sensor in the present invention.

[0022] In the figure: 1. base; 2. first rope drum; 3. drive motor; 4. second rope drum; 5. rope; 6. drawer; 61. mounting plate; 62. slide rail; 63. first hook; 64. hole; 65. mounting seat; 66. notch; 67. limit block; 7. sensor; 71. fixing plate; 72. second hook; 73. connecting column; 74. plug rod; 8. roller; 9. elastic part. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0025] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] Reference Figures 1 to 6, an automatic opening and closing drawer, comprising: a base 1, a first rope drum 2 is rotatably mounted on the base 1, and a driving motor 3 is also included. A second rope drum 4 is driven and mounted on the output shaft of the driving motor 3. A rope 5 is wound around the second rope drum 4 and the first rope drum 2. Elastic parts 9 are provided at both ends of the rope 5. A drawer 6 is slidably mounted on the top of the base 1, and the elastic part 9 is connected to the bottom of the drawer 6. The rope 5 cannot move under the locking of the driving motor 3. When the drawer 6 is pulled or pushed, the drawer 6 can move a certain displacement under the action of the elastic part 9. A sensor 7 is provided on the base 1. A roller 8 is rotatably mounted on the sensor 7. A magnet is embedded in the roller 8. The magnet and the sensor 7 together form a Hall switch. The top of the roller 8 contacts the drawer 6. When the drawer 6 is pushed or pulled, the elastic part 9 extends, so that the drawer 6 can move a certain displacement, and then the roller 8 is driven to rotate. The roller 8 drives the magnet to rotate, and the roller 8 and the sensor 7 produce relative displacement, so that the sensor 7 works and sends a control signal to control the driving motor 3 to work and wind the wire, and the drawer 6 is automatically opened and closed by the movement of the rope 5.

[0028] As a preferred embodiment, a mounting plate 61 is provided at the bottom of the drawer 6 , a slide rail 62 is provided on the mounting plate 61 , and the other side of the slide rail 62 is fixedly connected to the base 1 .

[0029] As a preferred embodiment, a mounting seat 65 is provided at the bottom of the mounting plate 61, a notch 66 is provided on the mounting seat 65, the elastic part 9 is a spring, the spring is sleeved outside the rope 5, both ends of the rope 5 are fixedly installed with limit blocks 67, the limit blocks 67 are clamped in the notch 66, and the two ends of the spring are respectively in contact with the notch 66 and the limit blocks 67. The purpose of this is to ensure that the drawer 6 can slide a certain distance when the rope 5 does not move, and the sliding distance is the compression amount of the spring, and accordingly, different trigger displacements can be set by replacing springs with different elastic coefficients.

[0030] As a preferred embodiment, a first hook 63 is provided at the bottom of the drawer 6, and a hole 64 is provided on the mounting plate 61, and the first hook 63 corresponds to the hole 64. During assembly, the drawer 6 is placed on the mounting plate 61, and the first hook 63 is inserted into the corresponding hole 64, and then the mounting plate 61 and the drawer 6 are relatively slid for a period of time, and the first hook 63 can be engaged with the edge of the hole 64, and then a small number of bolts are used to fix the drawer 6 on one side to prevent the drawer 6 and the mounting plate 61 from relative displacement, so that the assembly of the drawer 6 and the mounting plate 61 can be realized, and the operation is simple and convenient.

[0031] As a preferred embodiment, a fixing plate 71 is provided on one side of the sensor 7, and the roller 8 is installed between the fixing plate 71 and the sensor 7. A second hook 72 is provided on both the sensor 7 and the fixing plate 71. When the fixing plate 71 is installed on the sensor 7, the installation of the sensor 7 and the fixing plate 71 is achieved by engaging the second hook 72, which is simple to operate and convenient to assemble.

[0032] As a preferred embodiment, the sensor 7 is provided with a connecting column 73, and the fixing plate 71 is provided with an inserting rod 74, which is plugged into the connecting column 73. Thus, the fixing plate 71, the sensor 7 and the roller 8 can be assembled stably.

[0033] As a preferred embodiment, a compression spring is provided at the bottom of the sensor 7 , and the sensor 7 can be pushed upward under the elastic force of the compression spring, so that the roller 8 installed on the sensor 7 is in close contact with the drawer 6 .

[0034] In order to ensure that the drawer 6 can drive the roller 8 to rotate when sliding, the roller 8 is wrapped with a flexible material such as rubber, so as to increase friction and reduce noise.

[0035] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic opening and closing drawer, comprising: A base (1) is provided, wherein a first rope drum (2) is rotatably mounted on the base (1), and the base (1) further comprises a driving motor (3), wherein a second rope drum (4) is transmission-mounted on the output shaft of the driving motor (3), a rope (5) is wound around the second rope drum (4) and the first rope drum (2), and elastic parts (9) are provided at both ends of the rope (5), a drawer (6) is slidably mounted on the top of the base (1), and the elastic part (9) is connected to the bottom of the drawer (6), and the characteristics are: The base (1) is provided with a sensor (7), a roller (8) is rotatably mounted on the sensor (7), a magnet is embedded in the roller (8), the magnet and the sensor (7) together form a Hall switch, and the top of the roller (8) is in contact with the drawer (6).

2. An automatic opening and closing drawer according to claim 1, characterized in that: A mounting plate (61) is provided at the bottom of the drawer (6), a slide rail (62) is provided on the mounting plate (61), and the other side of the slide rail (62) is fixedly connected to the base (1).

3. An automatic opening and closing drawer as claimed in claim 2, characterized in that: A mounting seat (65) is provided at the bottom of the mounting plate (61), a notch (66) is provided on the mounting seat (65), the elastic portion (9) is a spring, the spring is sleeved outside the rope (5), both ends of the rope (5) are fixedly mounted with limit blocks (67), the limit blocks (67) are clamped in the notch (66), and the two ends of the spring are respectively in contact with the notch (66) and the limit blocks (67).

4. An automatic opening and closing drawer as claimed in claim 3, characterized in that: A first hook (63) is provided at the bottom of the drawer (6), and a hook hole (64) is provided on the mounting plate (61), wherein the first hook (63) corresponds to the hook hole (64).

5. An automatic opening and closing drawer according to any one of claims 1 to 4, characterized in that: A fixing plate (71) is provided on one side of the sensor (7), the roller (8) is installed between the fixing plate (71) and the sensor (7), and a second hook (72) is provided on both the sensor (7) and the fixing plate (71).

6. An automatic opening and closing drawer as claimed in claim 5, characterized in that: The sensor (7) is provided with a connecting column (73), and the fixing plate (71) is provided with an inserting rod (74), and the inserting rod (74) is plugged into the connecting column (73).

7. An automatic opening and closing drawer as claimed in claim 6, characterized in that: A compression spring is provided at the bottom of the sensor (7), and the bottom of the compression spring is connected to the base (1).

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