A jacking device for providing support

Abstract

The utility model discloses a kind of jacking devices with supporting effect, it is related to jacking device field, including bottom plate platform;Two sliding support parts, the sliding support part is provided with slope, two the sliding support part is slidably arranged on bottom plate platform along the length direction of bottom plate platform;Driving assembly, the driving assembly is set on the bottom plate platform, and driving two the sliding support assembly on the bottom plate platform moves in opposite direction;And, lifting platform, the lifting platform is slidably arranged on the slope of two the sliding support part. Solve the jacking mechanism volume excessively large in prior art, system is complex and the problem of insufficient height stability when being in long-term pressure maintaining.

Description

Technical Field

[0001] This utility model relates to the field of lifting devices, specifically to a lifting device that provides support. Background Technology

[0002] In various types of mechanical equipment, the lifting mechanism is a key component for realizing the lifting function of parts. It especially needs to have good impact resistance, stable support performance, and the ability to maintain the deformation of the components and the constant lifting height under external forces. The current mainstream lifting technologies mainly include two methods: threaded drive and hydraulic drive. However, both of them have obvious limitations, restricting their application in space-constrained or high-precision and high-stability applications.

[0003] Threaded lifting mechanisms convert rotary motion into linear lifting using a lead screw and nut, offering advantages such as good self-locking and high positioning accuracy. However, when subjected to heavy impact loads, the diameter of the threaded shaft must be significantly increased to ensure structural strength. For example, when bearing ten tons, the shaft diameter often needs to exceed eighty millimeters, resulting in a bulky and heavy mechanism. The supporting structure also occupies a lot of space, making it difficult to meet the requirements for compact equipment installation.

[0004] Hydraulic lifting mechanisms rely on hydraulic cylinder pistons for raising and lowering, with the hydraulic medium itself providing a certain degree of cushioning. However, these systems are complex, requiring auxiliary equipment such as oil pumps, control valve groups, pipelines, and oil tanks, resulting in a large overall footprint. More importantly, under conditions requiring sustained lifting height, hydraulic systems inevitably suffer from oil leakage and seal aging, leading to piston settling and making it impossible to maintain a stable lifting height, thus rendering them unsuitable for tasks requiring long-term, high-precision support.

[0005] In summary, existing lifting mechanisms still suffer from drawbacks such as excessive size, system complexity, and insufficient stability during long-term pressure holding, posing a severe challenge to their applicability in applications with limited installation space or extremely high requirements for long-term support accuracy. Utility Model Content

[0006] This application provides a lifting device that provides support, which can solve the technical problems of excessively large lifting mechanism, complex system, and insufficient stability during long-term pressure holding in the prior art.

[0007] This application provides a lifting device that provides support, comprising: Base platform; Two sliding support members, each with an inclined surface, are slidably mounted on the base plate platform along the length of the base plate platform. A drive assembly is disposed on the base plate platform and drives the two sliding support assemblies to move in opposite directions on the base plate platform; And a lifting platform, which is slidably mounted on the inclined surfaces of the two sliding supports.

[0008] In one embodiment, the sliding support includes wedge-shaped support blocks, two wedge-shaped support blocks are abutted to form a trapezoid, and the lifting platform is provided with a trapezoidal groove adapted to the shape of the two wedge-shaped support blocks. In one embodiment, the sliding support includes: Two sets of wedge-shaped support blocks, each set of wedge-shaped support blocks including two wedge-shaped support blocks that abut to form a trapezoid, the two sets of wedge-shaped support blocks are spaced apart along the width direction of the base plate platform, and the two wedge-shaped support blocks located on the same horizontal line abut to form a trapezoid; And a connector, the two ends of which are respectively connected to two wedge-shaped support blocks located on the same horizontal line in the width direction of the base plate platform.

[0009] In one embodiment, the wedge-shaped support block is provided with a locking element, which is used to fix the lifting platform.

[0010] In one embodiment, the locking element includes: A compression spring is provided in the wedge-shaped support block with a vertically oriented receiving groove, and the compression spring is disposed in the receiving groove. In addition, a hook block is provided, which is connected to the compression spring, and a mating part is provided on the bottom surface of the lifting platform, which is adapted to the shape of the hook block.

[0011] In one embodiment, a dovetail slide is provided on the base plate platform along the length direction of the base plate platform, and the wedge-shaped support block is slidably disposed in the dovetail slide.

[0012] In one embodiment, a limiting groove is provided on the side wall of the dovetail slide, and a protrusion is provided at the bottom of the wedge-shaped support block, the protrusion extending into the limiting groove.

[0013] In one embodiment, a limiting slide is provided on the inclined surface of the wedge-shaped support block, and a limiting hole adapted to the limiting slide is provided on the lifting platform.

[0014] In one embodiment, the driving component includes: A connecting screw is provided along the length of the base plate platform, and the connecting screw is provided with a first threaded section and a second threaded section in opposite directions. The first threaded section and the second threaded section are respectively threadedly connected to the two sliding support members. And a reciprocating motor, the output end of which is coaxially connected to the connecting screw via a coupling.

[0015] In one embodiment, a lifting device that provides support further includes: A bearing mounting base is provided on the base plate platform, and the connecting screw passes through the bearing mounting base and is connected to the two sliding support members.

[0016] The beneficial effects of the technical solutions provided in this application include: Two sliding support members are slidably installed along the length of the base platform. Activating the drive assembly drives the two sliding support members to move in opposite directions. Since the sliding support members have inclined surfaces, the lifting platform simultaneously abuts against these inclined surfaces. Therefore, as the two sliding support members move relative to each other, the lifting platform can slide on the inclined surfaces of the sliding support members and gradually rise. When the drive assembly stops driving the two sliding support members, the lifting platform can stop on the inclined surfaces of the two sliding support members. This allows the two sliding support members to support the height of the lifting platform on the base platform. The structure is simple and provides stable support, solving the problems of excessively large lifting mechanisms, complex systems, and insufficient height stability during long-term pressure holding in existing technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall structural diagram of a lifting device that provides support in this application; Figure 2 This is a structural diagram of a lifting device that provides support in this application, after the lifting platform is concealed. Figure 3 This is a schematic diagram of the wedge-shaped support block in this application; Figure 4 This is a cross-sectional view of the wedge-shaped support block in this application; In the diagram: 1. Base plate platform; 11. Dovetail slide; 111. Limiting groove; 12. Trapezoidal groove; 13. Connecting block; 2. Wedge-shaped support block; 21. Receiving groove; 22. Compression spring; 23. Hook block; 24. Extension; 25. Limiting slide; 3. Lifting platform; 4. Reciprocating motor; 41. Connecting screw; 42. Coupling; 43. Bearing mounting seat. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0020] This application provides a lifting device that provides support, which can solve the problems of excessive size, system complexity, and insufficient stability during long-term pressure holding.

[0021] Reference Figure 1 This application discloses a lifting device that provides support, comprising a base platform 1, two sliding support members, a drive assembly, and a lifting platform 3. The sliding support members are provided with inclined surfaces. The two sliding support members are slidably disposed on the base platform 1 along its length, and each sliding support member has an inclined surface. The drive assembly is disposed on the base platform 1 and is used to drive the two sliding support members to move in opposite directions along the length of the base platform 1, allowing the two sliding support members to move away from or towards each other. The lifting platform 3 is slidably disposed on the inclined surfaces of the two sliding support members. When the drive assembly is activated, the two sliding support members move away from each other, and the lifting platform 3 gradually rises along the inclined surfaces of the two sliding support members. When the drive assembly is deactivated, the two sliding support members stop on the base platform 1 and provide stable support for the lifting platform 3. The structure is simple and provides stable support, solving the problems of excessive size, system complexity, and insufficient stability during long-term pressure holding.

[0022] More specifically, in one embodiment of this application, the sliding support includes wedge-shaped support blocks 2, with two wedge-shaped support blocks 2 abutting against each other to form a trapezoid. A trapezoidal groove 12 adapted to the inclined surfaces of the two wedge-shaped support blocks 2 is provided on the lifting platform 3, thereby allowing the trapezoidal groove 12 to accommodate the two wedge-shaped support blocks 2 abutting in a trapezoidal shape. To facilitate the sliding of the lifting platform 3 on the wedge-shaped platform, in this embodiment, a limiting slide 25 is provided on the inclined surface of the wedge-shaped support block 2, and a limiting hole adapted to the limiting slide 25 is provided on the wall of the trapezoidal groove 12 where the lifting platform 3 abuts against the inclined surface of the wedge-shaped support block 2.

[0023] Furthermore, in this embodiment, the sliding support specifically includes two sets of wedge-shaped support blocks 2 and a connector. Each set of wedge-shaped support blocks 2 includes two wedge-shaped support blocks 2 that abut against each other to form a trapezoid. The two sets of wedge-shaped support blocks 2 are spaced apart along the width direction of the lifting platform 3. The lifting platform 3 has two trapezoidal grooves 12 correspondingly formed along its width direction, thereby enabling the two sets of wedge-shaped support blocks 2 to support the lifting platform 3 from both sides in the width direction, making the support more stable. The two ends of the connector in the length direction are respectively connected to the two wedge-shaped support blocks 2 located on the same horizontal line in the width direction of the base platform 1, so that the wedge-shaped support blocks 2 located on the same horizontal line in the width direction of the base platform 1 can slide synchronously, increasing the linkage of the overall structure.

[0024] In other embodiments, a set of wedge-shaped support blocks 2 can be set separately, and two wedge-shaped support blocks 2 can be set in the middle of the lifting platform 3 to support the lifting platform 3 from the middle. The specific number and setting method of the wedge-shaped support blocks 2 can be flexibly changed according to actual use.

[0025] Reference Figure 1 and Figure 2 A dovetail slide rail 11 is provided along the length of the base platform 1. A single set of wedge-shaped support blocks 2 are slidably disposed within the dovetail slide rail 11 to limit the sliding trajectory of the wedge-shaped support blocks 2. To improve the stability of the wedge-shaped support blocks 2 within the dovetail slide rail 11 and reduce the possibility of the wedge-shaped support blocks 2 detaching from the dovetail slide rail 11, a limiting groove 111 is provided on the opposite side wall of the dovetail slide rail 11. A protrusion 24 is provided at the bottom of the wedge-shaped support block 2, which extends into the limiting groove 111 and is adapted to the shape and size of the limiting groove 111 to limit the wedge-shaped support block 2. In this embodiment, in order to ensure that the lifting platform 3 can abut against the surface of the base platform 1 when it is at its lowest point, the bottom surface of the lifting platform 3 is also provided with a clearance groove adapted to the dovetail slide rail 11, so that the lifting platform 3 can be stably disposed on the base platform 1 and to prevent the lifting platform 3 from squeezing the dovetail slide rail 11.

[0026] The drive assembly specifically includes a connecting screw 41 and a reciprocating motor 4. The connecting screw 41 is arranged along the length of the base plate platform 1. The output end of the reciprocating motor 4 is coaxially connected to the connecting screw 41 via a coupling 42, so that the reciprocating motor 4 can drive the connecting screw 41 to rotate. The connecting screw 41 is provided with a first threaded section and a second threaded section in opposite directions. The first threaded section and the second threaded section are respectively threadedly connected to two sliding support members. In one embodiment of this application, the connecting screw 41 passes through two connecting members simultaneously. The two connecting members are respectively threadedly connected to the first threaded section and the second threaded section of the connecting screw 41 via nuts, so that when the reciprocating motor 4 drives the connecting screw 41 to rotate, it can drive the two sets of wedge-shaped support blocks 2 to slide in opposite directions.

[0027] Furthermore, to ensure smoother rotation of the connecting screw 41, bearing mounting seats 43 are provided at both ends of the base platform 1 along its length. Both ends of the connecting screw 41 are rotatably connected to the bearing mounting seats 43 via internal bearings, and are then mounted on the base platform 1. The bearing mounting seats 43 not only provide a stable transmission mounting position for the connecting screw 41, but also raise the installation height of the connecting screw 41, allowing it to smoothly connect to the middle of the two connecting parts, better meeting the height requirements of the structural connection.

[0028] Furthermore, when the lifting platform 3 gradually rises to the top of the two wedge-shaped support blocks 2, the lifting platform 3 reaches its highest height. In order to limit the maximum movement distance of the two wedge-shaped support blocks 2 and lock the highest point of the lifting platform 3, locking components are also provided on the wedge-shaped support blocks 2 to fix the lifting platform 3.

[0029] Reference Figure 3 and Figure 4 The locking mechanism includes a compression spring 22 and a hook block 23. A vertically oriented receiving groove 21 is provided on the wedge-shaped support block 2, and the compression spring 22 is disposed within the receiving groove 21. The hook block 23 is connected to the compression spring 22, and a mating part adapted to the shape of the hook block 23 is provided on the ground of the lifting platform 3. When the lifting platform 3 is at its lowest point, the hook block 23 is compressed by the lifting platform 3 and located inside the receiving groove 21. As the lifting platform 3 gradually rises, the hook block 23 gradually extends out of the receiving groove 21 under the elastic influence of the compression spring 22. When the lifting platform 3 rises to its highest point, the hook block 23 engages with the mating part to lock the lifting platform 3 and restrict the sliding of the two wedge-shaped support blocks 2, allowing the lifting platform 3 to be more stably fixed on the wedge-shaped support blocks 2, making it more convenient to use.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0031] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A lifting device that provides support, characterized in that, It includes: Base plate platform (1); Two sliding support members are provided with inclined surfaces. The two sliding support members are slidably disposed on the base plate platform (1) along the length direction of the base plate platform (1). The sliding support members include two sets of wedge-shaped support blocks (2) and a connecting member. The two wedge-shaped support blocks (2) are abutted to form a trapezoid. Each set of wedge-shaped support blocks (2) includes two wedge-shaped support blocks (2) that abut to form a trapezoid. The two sets of wedge-shaped support blocks (2) are spaced apart along the width direction of the base plate platform (1), and the two wedge-shaped support blocks (2) located on the same horizontal line abut to form a trapezoid. The two ends of the connecting member in the length direction are respectively connected to the two wedge-shaped support blocks (2) located on the same horizontal line in the width direction of the base plate platform (1). A drive assembly is disposed on the base plate platform (1) and drives the two sliding support assemblies to move in opposite directions on the base plate platform (1); In addition, a lifting platform (3) is slidably disposed on the inclined surface of the two sliding support members. The lifting platform (3) is provided with a trapezoidal groove (12) that matches the shape of the two wedge-shaped support blocks (2). A locking member is provided on the wedge-shaped support block (2), which is used to fix the lifting platform (3). The locking member includes a compression spring (22) and a hook block (23). The wedge-shaped support block (2) is provided with a receiving groove (21) in the vertical direction. The compression spring (22) is disposed in the receiving groove (21). The hook block (23) is connected to the compression spring (22). A mating part is provided on the bottom surface of the lifting platform (3), which matches the shape of the hook block (23).

2. The lifting device for supporting a load according to claim 1, characterized in that: A dovetail slide (11) is provided on the base plate platform (1) along the length direction of the base plate platform (1), and the wedge-shaped support block (2) is slidably disposed in the dovetail slide (11).

3. A lifting device for supporting a load according to claim 2, characterized in that: The dovetail slide (11) has a limiting groove (111) on its side wall, and the wedge-shaped support block (2) has a protrusion (24) at its bottom, which extends into the limiting groove (111).

4. A lifting device for supporting a load according to claim 1, characterized in that: The wedge-shaped support block (2) has a limiting slide (25) on its inclined surface, and the lifting platform (3) has a limiting hole that is compatible with the limiting slide (25).

5. A lifting device for supporting a load according to claim 1, characterized in that, The driving component includes: A connecting screw (41) is provided along the length direction of the base plate platform (1), and the connecting screw (41) is provided with a first threaded section and a second threaded section in opposite directions. The first threaded section and the second threaded section are respectively threadedly connected to the two sliding support members. And a reciprocating motor (4), the output end of which is coaxially connected to the connecting screw (41) via a coupling (42).

6. A lifting device for supporting a load according to claim 5, characterized in that, It also includes: A bearing mounting base (43) is provided on the base plate platform (1), and the connecting screw (41) passes through the bearing mounting base (43) and is connected to the two sliding supports.

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