Miniaturized electric sliding rail

Abstract

The utility model discloses a miniaturized electric slide rail which comprises an outer frame, an inner frame and ball structures, the ball structures are arranged in slide ways on two sides of the outer frame, the inner frame is slidably connected in the outer frame through matching with the ball structures, an electric driving structure is arranged at the rear end of the inner side face of the outer frame, and the front end of the electric driving structure is connected with a transmission structure. The inner frame is arranged above the transmission structure; the transmission structure comprises a lead screw, the lead screw is arranged on the inner side face of the outer frame in the length direction of the outer frame, a lead screw nut is arranged on the lead screw and fixedly connected with the inner side face of the inner frame, and the electric drive structure is in transmission connection with the rear end of the lead screw and drives the lead screw nut to do linear motion along the lead screw. The driving motor is arranged in the sliding rail, so that the internal structure of the sliding rail is more compact, and a large amount of space outside the sliding rail is saved; in addition, the sliding rails are miniature electric sliding rails, so that the overall structural size is small, and the utilization space outside the sliding rails is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of electric slide rails, and more specifically, relates to a miniaturized electric slide rail. Background Art

[0002] As a hardware component, slide rails are widely used in life and production. Nowadays, most slide rails on the market are pure mechanical slide rails, which require manual sliding to open and close the inner and outer rails. However, as people's requirements for product functions and experience continue to increase, pure mechanical slide rails may no longer meet the needs in some occasions and are gradually being replaced by electric slide rails.

[0003] At present, many mid-range and high-end cars have adopted electric slide rails in their interiors. However, the existing electric slide rails, such as the Chinese utility model patent "An electric slide rail assembly for automobile seats" with application number 201922502440.8, have their drive parts arranged outside the slide rails, which results in a large overall volume of the electric slide rails and a non-compact structure, and therefore cannot be applied to the design of automobile parts, such as electric ashtrays and electric armrests in the car. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the utility model aims to provide a miniaturized electric slide rail to achieve miniaturization and compactness of the electric slide rail, save the external space of the slide rail, and improve space utilization.

[0005] In order to achieve the above-mentioned technical objectives and effects, the utility model is implemented through the following technical solutions: a miniaturized electric slide rail, including an outer frame, an inner frame and a ball structure, the ball structure is arranged in the slideways on both sides of the outer frame, the inner frame is slidably connected to the outer frame by cooperating with the ball structure, the rear end of the inner side surface of the outer frame is provided with an electric drive structure, the front end of the electric drive structure is connected with a transmission structure, and the inner frame is arranged above the transmission structure; the transmission structure includes a screw rod, the screw rod is arranged on the inner side surface of the outer frame along the length direction of the outer frame, and the screw rod is located between the outer frame and the inner frame, a screw rod nut is arranged on the screw rod, the screw rod nut is fixedly connected to the inner side surface of the inner frame, the electric drive structure is transmission-connected to the rear end of the screw rod, and the electric drive structure drives the screw rod nut to make a linear motion along the screw rod.

[0006] Furthermore, the electric drive structure is fixedly connected to the rear end of the inner side surface of the outer frame through a pair of motor brackets, and the electric drive structure consists of a motor, a reducer and an encoder; the rear end of the screw rod is connected to the motor shaft of the motor through a coupling.

[0007] Furthermore, a bearing is provided at the rear end of the screw rod, the bearing is arranged in a bearing seat, and the bearing seat is fixedly connected to the inner side surface of the outer frame.

[0008] Furthermore, a fixing nut is provided at the rear end of the bearing seat to prevent the screw rod from sliding forward from the bearing.

[0009] Furthermore, the ball structure is a plastic bead strip, and the plastic bead strip is arranged in the slideways on both sides of the outer frame.

[0010] Furthermore, a plastic piece is provided at the front end of the outer frame for limiting the excessive forward movement of the plastic bead strip and for providing a buffer for the plastic bead strip.

[0011] Furthermore, the plastic part is made of a plastic material with elastic properties.

[0012] Furthermore, bead bar stop points for limiting excessive backward movement of the plastic bead bar are respectively provided at the rear ends of the slideways on both sides of the outer frame.

[0013] Furthermore, the length of the plastic bead strip is proportional to the sliding length of the inner frame.

[0014] Furthermore, the thickness of the outer frame is about 10.4 mm and the width is about 35 mm. Beneficial Effects

[0015] Compared with the prior art, the utility model sets the driving motor inside the slide rail, making the internal structure of the slide rail more compact, thereby saving a lot of space outside the slide rail; and the utility model sets the slide rail as a micro electric slide rail with a thickness of about 10.4mm and a width of about 35mm, making the overall structural size smaller, thereby greatly improving the utilization space outside the slide rail. In addition, the utility model can also freely customize the length and stroke of the slide rail according to customer needs, so it can be applied to the design of automotive parts, such as electric ashtrays, electric armrests and other projects in the car.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is the front view of the utility model in the unfolded state;

[0019] Figure 2 It is a perspective view of the utility model in an unfolded state;

[0020] Figure 3 This is a three-dimensional structural diagram of the utility model when it is in a closed state without the inner frame;

[0021] Figure 4 It is a cross-sectional view of the utility model.

[0022] In the figure: 1. outer frame; 11. plastic bead strip; 12. plastic part; 13. bead strip stop point; 2. motor bracket; 21. coupling; 3. screw rod; 31. screw rod nut; 32. bearing; 33. bearing seat; 34. fixing nut; 4. inner frame. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] See also Figure 1-Figure 4 As shown, a miniaturized electric slide rail mainly includes an outer frame 1, an inner frame 4 and a ball structure. The ball structure is arranged in the slideways on both sides of the outer frame 1, and the inner frame 4 is slidably connected in the outer frame 1 by cooperating with the ball structure. An electric drive structure is arranged at the rear end of the inner side surface of the outer frame 1, and a transmission structure is connected to the front end of the electric drive structure. The inner frame 4 is arranged above the transmission structure.

[0026] The transmission structure includes a screw rod 3, which is arranged on the inner side surface of the outer frame 1 along the length direction of the outer frame 1, and the screw rod 3 is located between the outer frame 1 and the inner frame 4. A screw rod nut 31 is arranged on the screw rod 3, and the screw rod nut 31 is fixedly connected to the inner side surface of the inner frame 4. A bearing 32 is arranged at the rear end of the screw rod 3, and the bearing 32 is arranged in a bearing seat 33. The bearing seat 33 is fixedly connected to the inner side surface of the outer frame 1, and a fixing nut 34 for preventing the screw rod 3 from sliding forward from the bearing 32 is arranged at the rear end of the bearing seat 33.

[0027] The electric drive structure is fixedly connected to the rear end of the inner side surface of the outer frame 1 through a pair of motor brackets 2. The electric drive structure consists of a motor, a reducer and an encoder. The motor shaft of the motor is connected to the rear end of the screw rod 3 through a coupling 21, and the motor drives the screw nut 31 to move linearly along the screw rod 3.

[0028] The ball structure is a plastic bead strip 11, which is arranged in the slideways on both sides of the outer frame 1. The front end of the outer frame 1 is provided with a plastic part 12 for limiting the excessive forward movement of the plastic bead strip 11 and playing a buffering role for the plastic bead strip 11; the rear ends of the slideways on both sides of the outer frame 1 are respectively provided with bead strip stop points 13 for limiting the excessive backward movement of the plastic bead strip 11.

[0029] As a preferred embodiment, the plastic part 12 is made of a plastic material with elastic properties.

[0030] As a preferred embodiment, the length of the plastic bead strip 11 is proportional to the sliding length of the inner frame 4 .

[0031] As a preferred embodiment, the thickness of the outer frame 1 is about 10.4 mm and the width is about 35 mm.

[0032] The working principle of the utility model is as follows:

[0033] In this embodiment, see Figure 1-Figure 4 As shown, when the device needs to be used, the motor moves, and the motor can drive the coupling 21 to move synchronously. Since the coupling 21 is connected to the screw 3, when the motor moves, the coupling 21 can drive the screw 3 to move in the bearing 32. Therefore, when the screw 3 moves synchronously with the motor, the screw nut 31 can move linearly with the movement of the screw 3.

[0034] When the outer frame 1 and the inner frame 4 need to be unfolded, the screw nut 31 can move along the screw 3 toward the plastic part 12, and the inner frame 4 also moves synchronously with the screw nut 31 until the plastic bead 11 contacts the plastic part 12, at which time the inner frame 4 is in a fully unfolded state.

[0035] When the outer frame 1 and the inner frame 4 need to be closed, the screw nut 31 can move along the screw 3 toward the bead bar stop point 13. At this time, the inner frame 4 also moves synchronously with the screw nut 31 until the plastic bead bar 11 contacts the bead bar stop point 13. At this time, the inner frame 4 is in a completely closed state.

[0036] The utility model can make the internal structure of the slide rail more compact by arranging the driving motor inside the slide rail, thereby saving a lot of space outside the slide rail.

[0037] Furthermore, the utility model configures the slide rail as a micro electric slide rail with a thickness of about 10.4 mm and a width of about 35 mm, which can make the overall structural size smaller, thereby greatly improving the utilization space outside the slide rail.

[0038] In addition, the utility model can also freely customize the length and stroke of the slide rail according to customer needs, so it can be suitable for the design of automotive parts, such as electric ashtrays, electric armrests and other items in the car.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A miniaturized electric slide rail, comprising an outer frame (1), an inner frame (4) and a ball structure, wherein the ball structure is arranged in slideways on both sides of the outer frame (1), and the inner frame (4) is slidably connected in the outer frame (1) by cooperating with the ball structure, characterized in that: An electric drive structure is arranged at the rear end of the inner side surface of the outer frame (1), a transmission structure is connected to the front end of the electric drive structure, and the inner frame (4) is arranged above the transmission structure; The transmission structure comprises a screw rod (3), the screw rod (3) being arranged on the inner side surface of the outer frame (1) along the length direction of the outer frame (1), and the screw rod (3) being located between the outer frame (1) and the inner frame (4), the screw rod (3) being provided with a screw rod nut (31), the screw rod nut (31) being fixedly connected to the inner side surface of the inner frame (4), the electric drive structure being transmission-connected to the rear end of the screw rod (3), and the electric drive structure driving the screw rod nut (31) to perform linear motion along the screw rod (3).

2. A miniaturized electric slide rail according to claim 1, characterized in that: The electric drive structure is fixedly connected to the rear end of the inner side surface of the outer frame (1) via a pair of motor brackets (2), and the electric drive structure is composed of a motor, a reducer and an encoder; the rear end of the lead screw (3) is connected to the motor shaft of the motor via a coupling (21).

3. The miniaturized electric slide rail according to claim 1, characterized in that: A bearing (32) is provided at the rear end of the screw rod (3); the bearing (32) is arranged in a bearing seat (33); and the bearing seat (33) is fixedly connected to the inner side surface of the outer frame (1).

4. The miniaturized electric slide rail according to claim 3, characterized in that: A fixing nut (34) is provided at the rear end of the bearing seat (33) for preventing the screw rod (3) from sliding forward from the bearing (32).

5. The miniaturized electric slide rail according to claim 1, characterized in that: The ball bearing structure is a plastic bead strip (11), and the plastic bead strip (11) is arranged in slideways on both sides of the outer frame (1).

6. The miniaturized electric slide rail according to claim 5, characterized in that: A plastic part (12) is provided at the front end of the outer frame (1) for limiting the excessive forward movement of the plastic bead strip (11) and for providing a buffer for the plastic bead strip (11).

7. A miniaturized electric slide rail according to claim 6, characterized in that: The plastic part (12) is made of a plastic material with elastic properties.

8. The miniaturized electric slide rail according to claim 5, characterized in that: Bead bar stop points (13) for limiting the excessive backward movement of the plastic bead bar (11) are respectively arranged at the rear ends of the slideways on both sides of the outer frame (1).

9. The miniaturized electric slide rail according to claim 5, characterized in that: The length of the plastic bead strip (11) is proportional to the sliding length of the inner frame (4).

10. The miniaturized electric slide rail according to claim 1, characterized in that: The outer frame (1) has a thickness of 10.4 mm and a width of 35 mm.

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