A telescopic arm mechanism

Abstract

The utility model relates to a kind of shearing type telescopic arm mechanism in retractable door field, including box, support plate, lead screw, drive motor, arm movement block and shearing type arm;Drive motor is fixedly arranged at the bottom of box;Multiple support plates are horizontally spaced and fixedly connected in the inside of box;Arm movement block is located on lead screw, and is threadedly cooperated with lead screw and vertically slides along lead screw;Shearing type arm includes fixed end and movable end, fixed end is hinged on box, and movable end is hinged in arm movement block;Drive motor drives lead screw to rotate, arm movement block moves up and down along lead screw, drives shearing type arm to unfold or contract, and shearing type arm can be completely housed in box;This shearing type telescopic arm mechanism makes the shearing type arm consisting of multiple diamond-shaped link units can be unfolded, contracted and completely housed in box to save space.

Description

Technical Field

[0001] This utility model relates to the field of telescopic gates, and in particular to a shear-type telescopic arm mechanism. Background Technology

[0002] In the field of telescopic gates, the telescopic arm is the core component for realizing the telescopic function. Its ease of storage, operational stability, structural compactness, and ease of maintenance directly affect the overall performance of the equipment. Currently, traditional telescopic arms generally suffer from the following problems: poor storage effect. Because the drive unit occupies lateral space, most arms cannot be completely hidden inside the housing after retraction, resulting in a large space occupation when the equipment is not in use, which limits its applicability, especially in scenarios with high space utilization requirements. Utility Model Content

[0003] In view of this, this application proposes a shear-type telescopic lever mechanism that can fully retract the telescopic lever while maintaining structural stability, thus solving the problems mentioned in the background art.

[0004] This utility model provides the following technical solution: a shearing telescopic lever mechanism, characterized in that it includes a housing, a support plate, a lead screw, a drive motor, a lever movement block, and a shearing lever; The drive motor is fixedly installed at the bottom of the housing; There are multiple support plates, which are horizontally spaced and fixed to the inside of the box to form an upper and lower layered installation space; the lever arm moving block is located on the lead screw, is threaded with the lead screw and slides vertically along the lead screw; The shear lever arm includes a fixed end and a movable end. The fixed end is hinged to the housing, and the movable end is hinged to the lever arm moving block. The drive motor drives the lead screw to rotate, and the lever arm moving block moves up and down along the lead screw, causing the shear lever arm to extend or retract, and the shear lever arm can be completely stored in the box.

[0005] In one embodiment of the utility model, the support plate includes an upper support plate and a lower support plate. The upper support plate has a first through hole for the lead screw to pass through, and the lower support plate has a second through hole for the drive motor to pass through. The lead screw is vertically positioned between the upper support plate and the lower support plate.

[0006] In one embodiment of the utility model, the shear lever arm includes multiple rhomboid link units, and adjacent rhomboid link units are rotatably connected.

[0007] In one embodiment of the utility model, a metal baffle is also included; A vertically arranged metal baffle, with dimensions matching the box body, separates the shear-type telescopic arm from the support plate.

[0008] In one embodiment of the utility model, a motor controller is also included; The motor controller is located on the right side of the lower support plate and is fixedly connected to the lower support plate.

[0009] In one embodiment of the utility model, a fixing iron sheet is also included; The fixed iron sheet is fixedly connected to the metal baffle, and the fixed end is hinged to the fixed iron sheet.

[0010] In one embodiment of the utility model, an opening is provided on the rear side of the housing, the shape and size of which match the shear telescopic arm.

[0011] In one embodiment of the utility model, ventilation holes are provided in the middle part of both sides of the box.

[0012] In one embodiment of the utility model, a motor mounting base is also included. The motor mounting base is disposed on the left side of the lower support plate, and the drive motor is fixedly connected to the lower support plate through the motor mounting base.

[0013] In one embodiment of the utility model, a detachable panel is provided on the front side of the box, and the detachable panel is bolted to the box.

[0014] The beneficial effects of this utility model are as follows: By setting up a housing and a support plate, fixing a drive motor, and setting up a lead screw and a lever arm moving block, the lever arm moving block moves up and down along the lead screw. The drive motor drives the lead screw to move the lever arm moving block, so that the shearing lever arm composed of multiple diamond-shaped linkage units can be extended, retracted, and completely stored in the housing to save space. By setting up a metal baffle to separate the lever arm from the support plate, interference between components is avoided and the internal structure is protected, thus extending the service life. The ventilation holes on both sides of the housing facilitate heat dissipation, and the opening on one side of the rear of the housing ensures that the shearing telescopic lever arm can extend and retract freely, enhancing the operational stability and accuracy.

[0015] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0017] Figure 1 A front view of a shear-type telescopic lever mechanism according to an embodiment of this application is shown; Figure 2The diagram shows a rear view of a shear-type telescopic lever mechanism according to an embodiment of this application; Figure 3 A side view of a scissor-type telescopic lever mechanism according to an embodiment of this application is shown. Detailed Implementation Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0018] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0021] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0022] Specific references Figure 1As a shearing telescopic lever mechanism of this utility model, the device includes: a housing 100, a support plate, a lead screw 121, a lever arm moving block 122, a drive motor 131, and a shearing lever arm 140; the drive motor is fixedly installed at the bottom of the housing; there are multiple support plates, which are horizontally spaced and fixed to the inside of the housing 100 to form an upper and lower layered installation space; the lever arm moving block 122 is located on the lead screw 121, threadedly engaged with the lead screw 121, and slides vertically along the lead screw 121; the shearing lever arm 140 includes a fixed end 142 and a movable end 141, the fixed end 142 is hinged to the housing, and the movable end 141 is hinged to the lever arm moving block 122; the drive motor 131 drives the lead screw 121 to rotate, and the lever arm moving block 122 moves up and down along the lead screw 121, causing the shearing lever arm 140 to expand or contract, and the shearing lever arm 140 can be completely stored inside the housing 100.

[0023] In this specific embodiment, by setting up a housing and a support plate, fixing a drive motor, and setting up a lead screw and a lever arm moving block, the lever arm moving block moves up and down along the lead screw. The drive motor drives the lead screw to move the lever arm moving block, so that the shearing lever arm composed of multiple diamond-shaped linkage units can be extended, retracted, and completely stored in the housing to save space. By setting up a metal baffle to separate the lever arm from the support plate, interference between components is avoided and the internal structure is protected, thus extending its service life. Ventilation holes on both sides of the housing facilitate heat dissipation, and by opening on one side of the rear of the housing, the shearing telescopic lever arm can be freely extended and retracted, enhancing operational stability and accuracy.

[0024] In this example, the support plate specifically includes an upper support plate 111 and a lower support plate 112. The upper support plate 111 has a first through hole for the lead screw 121 to pass through, and the lower support plate 112 has a second through hole for the drive motor 131 to pass through. The lead screw 121 is vertically arranged between the upper support plate 111 and the lower support plate 112. Through the limiting and support of the upper and lower support plates, the lead screw 121 maintains a stable verticality during rotation, providing a structural basis for the smooth sliding of the lever arm moving block 122.

[0025] In this example, the shear lever arm 140 is composed of multiple rhomboid link units, which are rotatably connected by a rotating shaft. This structure, composed of rhomboid link units, utilizes the expandable and contractible properties of the rhomboid structure to achieve synchronous expansion and contraction as the lever arm moving block 122 moves up and down. Furthermore, the coordinated action of multiple units ensures the smoothness of the lever arm's extension and contraction process.

[0026] In this example, the mechanism also includes a vertically positioned metal baffle, the size of which matches the housing 100, and is fixed vertically to the inside of the housing, completely separating the shear arm 140 from the support plate. This design prevents the shear arm 140 from colliding or rubbing against the support plate and surrounding components during extension and retraction, while also reducing the impact of external dust and impurities on the components on one side of the support plate, thus protecting the internal structure.

[0027] In this example, the mechanism is also equipped with a motor controller 132. The motor controller 132 is located on the right side of the lower support plate 112 and is fixedly connected to the lower support plate 112 by bolts. The motor controller 132 is electrically connected to the drive motor 131 and can precisely control the rotation direction, speed, and start / stop of the drive motor 131, thereby achieving precise control of the moving distance of the lever arm moving block 122 and ensuring that the extension or retraction stroke of the shear lever arm 140 meets the actual requirements.

[0028] In this example, a fixing plate 151 is also included. The fixing plate 151 is fixed to the metal baffle by welding or bolting. The fixed end 142 of the shear arm 140 is hinged to the fixing plate 151 by a pin. The fixing plate 151 enhances the stability of the connection between the fixed end 142 and the metal baffle, preventing loosening at the hinge after long-term use.

[0029] In this example, the rear side of the housing 100 has an opening whose shape matches the cross-sectional shape of the scissor lever 140. The size of the opening is slightly larger than the maximum width of the scissor lever 140 when fully extended. This opening provides a channel for the extension and retraction of the scissor lever 140, ensuring that the lever is not obstructed by the housing 100 during movement, and also reserving space for the lever to be fully retracted into the housing. The front side of the housing 100 has a removable panel, which is connected to the housing 100 by multiple bolts. When it is necessary to inspect or maintain components such as the lead screw 121, lever movement block 122, and drive motor 131 inside the housing, the removable panel allows operators to quickly open the housing, simplifying the maintenance process.

[0030] In this example, the mechanism also includes a motor mounting base 133, which is located on the left side of the lower support plate 112 and is fixedly connected to the lower support plate 112 by bolts. The bottom of the drive motor 131 is connected to the motor mounting base 133 by bolts, thereby indirectly fixing the drive motor 131 to the lower support plate 112. The motor mounting base 133 can effectively disperse the vibration generated by the drive motor 131 during operation, reduce the impact on the lower support plate 112 and surrounding components, and improve the stability of the overall structure.

[0031] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A shear-type telescopic lever mechanism, characterized in that, include: The components include: housing, support plate, lead screw, drive motor, lever arm moving block, and shear lever arm. The drive motor is fixedly installed at the bottom of the housing and is fixedly connected to the lower support plate through the motor mounting bracket; The support plates are multiple and are fixedly connected to the inside of the box at horizontal intervals to form an upper and lower layered installation space; The lead screw is vertically positioned between the upper support plate and the lower support plate; the lever arm moving block is threadedly engaged with the lead screw and moves vertically along the lead screw; The shear lever arm includes multiple rhomboid linkage units, one end of which is a fixed end hinged to the inner wall of the housing, and the other end is a movable end hinged to the lever arm moving block. The housing is equipped with a vertical metal baffle to completely isolate the shear lever arm movement area from the screw and drive motor mounting area; The rear side of the housing has an opening that matches the shape and size of the shear lever arm, so that the shear lever arm can be completely stored inside the housing. The drive motor drives the lever arm movement block through the lead screw, thereby causing the shear lever arm to extend or retract.

2. The shear-type telescopic lever mechanism according to claim 1, characterized in that, The support plate includes an upper support plate and a lower support plate. The upper support plate has a first through hole for the lead screw to pass through, and the lower support plate has a second through hole for the drive motor to pass through. The lead screw is vertically positioned between the upper support plate and the lower support plate.

3. The shear-type telescopic lever mechanism according to claim 1, characterized in that, The shear lever arm includes multiple diamond-shaped link units, and adjacent diamond-shaped link units are rotatably connected.

4. The shear-type telescopic lever mechanism according to claim 1, characterized in that, It also includes metal baffles; The metal baffle is vertically arranged and its size matches the box body, separating the shear-type telescopic arm and the support plate.

5. A shear-type telescopic lever mechanism according to claim 1, characterized in that, It also includes the motor controller; The motor controller is located on the right side of the lower support plate and is fixedly connected to the lower support plate.

6. A shear-type telescopic lever mechanism according to claim 1, characterized in that, It also includes fixing iron plates; The fixed iron plate is fixedly connected to the metal baffle, and the fixed end is hinged to the fixed iron plate.

7. A shear-type telescopic lever mechanism according to claim 1, characterized in that, The rear side of the housing has an opening whose shape and size match the shear telescopic arm.

8. A shear-type telescopic lever mechanism according to claim 7, characterized in that, Ventilation holes are provided in the middle of both sides of the box.

9. A shear-type telescopic lever mechanism according to claim 1, characterized in that, It also includes a motor mounting base, which is located on the left side of the lower support plate, and the drive motor is fixedly connected to the lower support plate through the motor mounting base.

10. A shear-type telescopic lever mechanism according to claim 1, characterized in that, The front side of the box is provided with a detachable panel, which is bolted to the box.

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