Electric telescopic mechanism

Abstract

The utility model discloses an electric telescopic mechanism which comprises a driving mechanism and a fingerprint switch system, the driving mechanism comprises a bottom plate and a top plate, the bottom plate is provided with a driving assembly and a sliding rail assembly, and the top plate is arranged on the driving assembly and the sliding rail assembly; the fingerprint switch system comprises a drawer, the drawer is arranged on the top plate, a fingerprint switch is arranged on the drawer, and the fingerprint switch is connected with the driving assembly through a control circuit board and drives the drawer to move linearly along the sliding rail assembly. The electric telescopic mechanism is small and exquisite in structure and small in occupied space, and automatic opening and closing of the drawer can be well achieved; starting and stopping of the motor are controlled through the fingerprint switch, then the top plate and the drawer on the top plate are driven to linearly move along the guide rail and the conveying belt, automatic opening and closing of the drawer are achieved, and manpower waste is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of office furniture, and particularly relates to an electric telescopic mechanism. Background Art

[0002] Although there are various types of drawers on the market, generally they need to cooperate with slide rails to achieve opening and closing, and the slide rails are installed between the drawer and the cabinet body. Most of the existing slide rails are manual, and the user applies a pulling force or a pushing force to open and close the drawer. However, when the drawer is overloaded, the user needs a large pulling force or pushing force, which is laborious and likely to damage the slide rail, reducing the service life of the product.

[0003] Therefore, electric slide rails driven by motors have emerged on the market, which can realize automatic pushing and pulling of drawers. They mainly use the motor to drive the gear along the driving rack to drive the sliding guide rail bracket and the sliding guide rail to move horizontally.

[0004] However, the electric slide rails with the above structure have the following deficiencies in practical applications:

[0005] 1) The driving motor is fixedly installed between the fixed guide rail and the fixed guide rail bracket, occupying a large space, having a complex structure, and reducing the drawer volume.

[0006] 2) The installation of the traditional driving motor occupies the load of the slide rail, reducing the use stability of the slide rail.

[0007] 3) The traditional electric slide rail has poor synchronization performance during operation, and the use of a synchronization rod makes the structure complex, with high assembly requirements and difficult maintenance and replacement.

[0008] 4) During the use of the traditional electric slide rail, it is easy to shake and generate a large noise, reducing the use experience. Summary of the Utility Model

[0009] In order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide an electric telescopic mechanism.

[0010] The electric telescopic mechanism includes a driving mechanism and a fingerprint switch system. The driving mechanism includes a bottom plate and a top plate. A driving component and a slide rail component are arranged on the bottom plate, and the top plate is arranged on the driving component and the slide rail component. The fingerprint switch system includes a drawer, which is arranged on the top plate, and a fingerprint switch is arranged on the drawer. The fingerprint switch is connected to the driving component through a control circuit board to drive the drawer to linearly move along the slide rail component.

[0011] Further, the driving assembly includes a motor, a driving wheel and a driven wheel. The driving wheel is fixedly sleeved on the output shaft of the motor, and the driving wheel and the driven wheel are linked by a transmission belt. The moving direction of the transmission belt is the same as the opening and closing direction of the drawer. A slider is arranged on the upper end surface of the transmission belt, and the slider is fixedly fitted with the top plate.

[0012] Further, the slide rail assembly includes a slide rail arranged on the bottom plate. The installation direction of the slide rail is the same as the opening and closing direction of the drawer. An installation plate is arranged thereon, and the installation plate is fixedly fitted with the top plate.

[0013] Further, a support assembly is arranged on one side of the bottom plate close to the opening and closing of the drawer. The support assembly includes a support frame and a roller rotatably arranged on the support frame. The rolling end surface of the roller is in rolling fit with the lower end surface of the top plate, and the upper end surface of the roller is higher than the upper end surface of the support frame.

[0014] Further, limiting assemblies are arranged on both sides of the upper end surface of the bottom plate. The limiting assemblies include two L-shaped frames arranged oppositely. The L-shaped frames are respectively placed at both ends of the bottom plate. Rubber pads are arranged on the opposite sides of the two L-shaped frames. The rubber pads are in abutting connection with the stoppers on the lower end surface of the top plate to limit the stretching position of the top plate.

[0015] Further, a photoelectric inductor is arranged between the two L-shaped frames of at least one side of the limiting assembly.

[0016] Compared with the prior art, the present utility model has the following advantages: The structure of the electric telescopic mechanism in this application is small and occupies little space, and can well fit the automatic opening and closing of the drawer. The opening and closing of the motor are controlled by a fingerprint switch (that is, manual touch to open and manual touch to close), and then the top plate and the drawer on the top plate are driven to linearly move along the guide rail and the transmission belt to realize the automatic opening and closing of the drawer, avoiding waste of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a side view structural diagram of the present utility model;

[0019] Figure 3 is a schematic structural diagram of the present utility model (without the top plate);

[0020] Figure 4 is a top view structural diagram of the present utility model (without the top plate);

[0021] Figure 5 is a separated structural diagram of the present utility model.

[0022] In the figure: 1 - bottom plate, 2 - top plate, 21 - stop block, 3 - drive assembly, 31 - motor, 32 - driving wheel, 33 - driven wheel, 34 - conveyor belt, 35 - slider, 4 - slide rail assembly, 41 - slide rail, 42 - mounting plate, 5 - support assembly, 51 - support frame, 52 - roller, 6 - photoelectric inductor, 7 - limit assembly, 71 - L-shaped frame, 72 - rubber pad. Detailed implementation manner

[0023] To enable those skilled in the art to more clearly understand the technical solution of the present application, the present utility model will be further described below with reference to the accompanying drawings.

[0024] As Figures 1 - 5 shown, an electric telescopic mechanism includes a driving mechanism and a fingerprint switch system. The driving mechanism includes a bottom plate 1 and a top plate 2. A drive assembly 3 and a slide rail assembly 4 are arranged on the bottom plate 1, and the top plate 2 is arranged on the drive assembly 3 and the slide rail assembly 4; the fingerprint switch system includes a drawer which is arranged on the top plate 2, and a fingerprint switch is arranged on the drawer. The fingerprint switch is connected to the drive assembly 3 through a control circuit board to drive the drawer to linearly move along the slide rail assembly 4.

[0025] Specifically, the drive assembly 3 includes a motor 31, a driving wheel 32 and a driven wheel 33. The driving wheel 32 is fixedly sleeved on the output shaft of the motor 31, and the driving wheel 32 and the driven wheel 33 are linked by a conveyor belt 34. The movement direction of the conveyor belt 34 is the same as the opening and closing direction of the drawer; and a slider 35 is arranged on the upper end surface of the conveyor belt 34, and the slider 35 is fixedly fitted with the top plate 2. The slide rail assembly 4 includes a slide rail 41 arranged on the bottom plate 1. The installation direction of the slide rail 41 is the same as the opening and closing direction of the drawer (i.e., the moving direction of the top plate 2), and a mounting plate 42 is arranged thereon. The mounting plate 42 is fixedly fitted with the top plate 2. In a specific embodiment, the motor 31 is arranged on the upper end surface of the bottom plate 1 on the side far from the sliding-out of the top plate 2, and the slide rail 41 is arranged in the middle of the bottom plate 1.

[0026] In the present application, a support assembly 5 is arranged on the side of the bottom plate 1 close to the opening and closing of the drawer. The support assembly 5 includes a support frame 51 and a roller 52 rotatably arranged on the support frame 51. The rolling end surface of the roller 52 is in rolling fit with the lower end surface of the top plate 2, and the upper end surface of the roller 52 is higher than the upper end surface of the support frame 51.

[0027] In order to prevent the deviation of the sliding positions of the top plate 2 and the drawer, limit assemblies 7 are arranged on both sides of the upper end surface of the bottom plate 1. The limit assemblies 7 include two relatively arranged L-shaped frames 71. The L-shaped frames 71 are respectively placed at both ends of the bottom plate 1. Rubber pads 72 are arranged on the opposite sides of the two L-shaped frames 71. The rubber pads 72 are in abutting contact with the stop blocks 21 on the lower end surface of the top plate 2 to limit the stretching position of the top plate 2. In this embodiment, a photoelectric inductor 6 is arranged between the two L-shaped frames 71 of at least one side of the limit assembly 7.

[0028] During use, the opening and closing of the motor 31 is controlled by a fingerprint switch (i.e., manually touched to turn on and manually touched to turn off), driving the driving wheel 32 to rotate, driving the conveyor belt 34 to move, and then the slider 35 and the top plate 2 on the conveyor belt 34 linearly move along the guide rail 41, realizing the reciprocating movement of the top plate 2 and the opening and closing of the drawer.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric telescopic mechanism, comprising a driving mechanism and a fingerprint switch system, characterized in that, The driving mechanism includes a bottom plate (1) and a top plate (2). A driving component (3) and a slide rail component (4) are arranged on the bottom plate (1), and the top plate (2) is arranged on the driving component (3) and the slide rail component (4); the fingerprint switch system includes a drawer which is arranged on the top plate (2), and a fingerprint switch is arranged on the drawer. The fingerprint switch is connected to the driving component (3) through a control circuit board to drive the drawer to linearly move along the slide rail component (4).

2. The electric telescopic mechanism according to claim 1, wherein, The driving component (3) includes a motor (31), a driving wheel (32) and a driven wheel (33). The driving wheel (32) is fixedly sleeved on the output shaft of the motor (31), and the driving wheel (32) and the driven wheel (33) are linked through a transmission belt (34). The movement direction of the transmission belt (34) is consistent with the opening and closing direction of the drawer; and a slider (35) is arranged on the upper end surface of the transmission belt (34), and the slider (35) is fixedly fitted with the top plate (2).

3. An electric telescopic mechanism according to claim 1, characterized in that, The slide rail component (4) includes a slide rail (41) arranged on the bottom plate (1). The installation direction of the slide rail (41) is consistent with the opening and closing direction of the drawer, and a mounting plate (42) is arranged thereon. The mounting plate (42) is fixedly fitted with the top plate (2).

4. An electric telescopic mechanism according to any one of claims 1-3, characterized in that, A support component (5) is arranged on one side of the bottom plate (1) close to the opening and closing of the drawer. The support component (5) includes a support frame (51) and a roller (52) rotatably arranged on the support frame (51). The rolling end surface of the roller (52) is in rolling fit with the lower end surface of the top plate (2), and the upper end surface of the roller (52) is higher than the upper end surface of the support frame (51).

5. An electric telescopic mechanism according to claim 4, characterized in that, Limit components (7) are arranged on both sides of the upper end surface of the bottom plate (1). The limit components (7) include two L-shaped frames (71) arranged oppositely. The L-shaped frames (71) are respectively placed at both ends of the bottom plate (1). Rubber pads (72) are arranged on the opposite sides of the two L-shaped frames (71). The rubber pads (72) are in contact with a stop block (21) on the lower end surface of the top plate (2) to limit the stretching position of the top plate (2).

6. An electric telescopic mechanism according to claim 5, characterized in that, A photoelectric inductor (6) is arranged between the two L-shaped frames (71) of at least one side of the limit component (7).

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