A connecting structure of a car frame and a car bottom of a backpack frame lifting platform

Abstract

This application relates to a connection structure between the car frame and the car bottom of a backpack frame lifting platform, including a car bottom welding assembly and a lower beam welding assembly. The car bottom welding assembly includes a car bottom plate and several connecting vertical tubes disposed within the car bottom plate. The lower beam welding assembly includes a support frame, lower beam cantilever arms disposed on both sides of the support frame, bottom angle steel disposed on the lower beam cantilever arms, connecting side tubes disposed on both sides of the support frame and connected to the bottom angle steel, and at least one connecting central tube disposed in the middle of the support frame. The connecting central tube, connecting side tubes, and connecting vertical tubes are detachably connected. By setting up the car bottom welding assembly, the lower beam welding assembly, and the detachably connected connecting vertical tubes, connecting side tubes, and connecting central tubes, a split splicing connection between the car frame and the car bottom is achieved, thereby avoiding the wear and damage problems caused by integral structures during transportation, and making installation, maintenance, and parts replacement more convenient, solving the problem of lack of flexibility in the integral connection structure of the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of backpack frame lifting platforms, specifically to a connection structure between the frame and the bottom of a backpack frame lifting platform. Background Technology

[0002] The existing backpack frame lifting platform's frame and floor are mostly connected by welding or integral bolts, forming a single structure with the lower beam of the frame and the floor. During transportation, the protruding part of the lower beam is easily scratched or bumped, causing damage. Furthermore, the integral design lacks the ability to be adjusted in sections, meaning that if installation or repair is needed after leaving the factory, complex overall disassembly and assembly is required, or disassembly is not possible. It also highly depends on manufacturing precision, resulting in poor stability, susceptibility to damage, and high and difficult transportation requirements. Utility Model Content

[0003] The purpose of this utility model is to provide a connection structure between the frame and the bottom of a backpack frame lifting platform. By setting up a bottom welding assembly, a lower beam welding assembly, and connecting vertical pipes, connecting side pipes, and connecting middle pipes that are detachably connected, a split splicing connection between the frame and the bottom can be achieved. This avoids the wear and damage problems caused by the integral structure during transportation, and makes installation, maintenance, and parts replacement more convenient. It also solves the problem of lack of flexibility in the integral connection structure in the prior art.

[0004] To achieve the above objectives, this utility model provides a connection structure between the car frame and the car bottom of a backpack rack lifting platform, comprising:

[0005] The car floor welding assembly includes a car floor plate and a plurality of connecting vertical pipes disposed within the car floor plate;

[0006] The lower beam welding assembly includes a support frame, lower beam cantilever arms disposed on both sides of the support frame, bottom angle steel disposed on the lower beam cantilever arms, connecting side pipes disposed on both sides of the support frame and connected to the bottom angle steel, and at least one connecting middle pipe disposed in the middle of the support frame.

[0007] The connecting middle pipe, the connecting side pipe, and the connecting vertical pipe are detachably connected.

[0008] Optionally, the connecting vertical pipe includes a first connecting vertical pipe disposed on both sides of the car floor and cooperating with the connecting side pipe, and at least one second connecting vertical pipe disposed in the middle of the car floor and cooperating with the connecting middle pipe.

[0009] Optionally, a welding plate is provided on the side of the connecting side tube facing the first connecting vertical tube, and the welding plate has a threaded hole. The welding plate is connected to the first connecting vertical tube by bolts.

[0010] Optionally, a shim for adjusting the gap is provided between the connecting middle tube and the second connecting vertical tube, and the connecting middle tube and the second connecting vertical tube are connected by bolts and nuts.

[0011] Optionally, a connecting horizontal tube is provided inside the car floor, the connecting horizontal tube is connected to the end of the connecting vertical tube, and a connecting plate for connecting the car floor cover plate is provided on the connecting horizontal tube, the car floor cover plate being used to cover the bottom of the car floor.

[0012] The beneficial effects of this utility model are as follows: by setting up a car bottom welding assembly, a lower beam welding assembly, and a connecting vertical tube, connecting side tube, and connecting middle tube that are detachably connected, a split splicing connection between the car frame and the car bottom is achieved, thereby avoiding the wear and damage problems caused by the integral structure during transportation, and making installation, maintenance, and parts replacement more convenient, thus solving the problem of the lack of flexibility of the integral connection structure in the prior art.

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic structural diagram of the connection structure between the car frame and the car bottom of a backpack rack lifting platform according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic structural diagram of the lower beam welding assembly of the connection structure between the car frame and the car bottom of a backpack frame lifting platform according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic structural diagram of the car bottom welding assembly of a backpack rack lifting platform, which is a connection structure between the car frame and the car bottom, according to an embodiment of the present invention.

[0017] Figure 4 This is a schematic structural diagram of a backpack rack lifting platform with the car frame and car bottom connection structure hidden behind the car bottom plate, according to an embodiment of the present invention.

[0018] In the diagram: 1. Car floor welding assembly; 11. Car floor plate; 12. Connecting vertical pipe; 121. First connecting vertical pipe; 122. Second connecting vertical pipe; 13. Connecting horizontal pipe; 14. Connecting plate; 2. Lower beam welding assembly; 21. Support frame; 22. Lower beam cantilever; 23. Bottom angle steel; 24. Connecting side pipe; 25. Connecting middle pipe; 26. Welding plate. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see Figures 1 to 4 A preferred embodiment of this application shows a backpack frame lifting platform with a frame-to-floor connection structure including a floor welding assembly 1 and a lower beam welding assembly 2. The floor welding assembly 1 includes a floor plate 11 and a plurality of connecting vertical pipes 12 disposed within the floor plate 11. The lower beam welding assembly 2 includes a support frame 21, lower beam cantilever arms 22 disposed on both sides of the support frame 21, bottom angle steel 23 disposed on the lower beam cantilever arms 22, connecting side pipes 24 disposed on both sides of the support frame 21 and connected to the bottom angle steel 23, and at least one connecting central pipe 25 disposed in the middle of the support frame 21. The connecting central pipe 25, connecting side pipes 24, and connecting vertical pipes 12 are detachably connected.

[0023] According to the embodiment of this utility model, by setting up a car bottom welding assembly 1, a lower beam welding assembly 2, and a connecting vertical pipe 12, a connecting side pipe 24, and a connecting middle pipe 25 that are detachably connected, a split splicing connection between the car frame and the car bottom is achieved, thereby avoiding the wear and damage problems caused by the integral structure during transportation, and making installation, maintenance, and parts replacement more convenient, thus solving the problem of lack of flexibility in the integral connection structure in the prior art.

[0024] The following detailed description uses specific examples:

[0025] Specifically, please see Figure 3 The connecting vertical pipe 12 includes a first connecting vertical pipe 121 disposed on both sides of the car floor 11 and cooperating with the connecting side pipe 24, and at least one second connecting vertical pipe 122 disposed in the middle of the car floor 11 and cooperating with the connecting central pipe 25. See also... Figure 2 A welding plate 26 is provided on the side of the connecting side tube 24 facing the first connecting vertical tube 121. The welding plate 26 has threaded holes, and the welding plate 26 is connected to the first connecting vertical tube 121 by bolts. By connecting the welding plate 26 to the first connecting vertical tube 121 with bolts, a reliable and detachable connection in the lateral part is achieved, which enhances the connection firmness and the convenience of subsequent maintenance.

[0026] A shim for adjusting the gap is provided between the connecting middle tube 25 and the second connecting vertical tube 122. The connecting middle tube 25 and the second connecting vertical tube 122 are connected by bolts and nuts. This arrangement ensures that the middle connection is not only firm but also allows for flexible adjustment of the gap during installation to accommodate different assembly tolerance requirements.

[0027] Further, please see Figure 3 and Figure 4 A connecting horizontal tube 13 is provided inside the car floor plate 11. The connecting horizontal tube 13 is connected to the end of the connecting vertical tube 12. A connecting plate 14 for connecting the car floor cover plate is provided on the connecting horizontal tube 13. The car floor cover plate is used to cover the bottom of the car floor plate 11. This arrangement can improve the overall protective performance and aesthetic effect of the car floor, and enhance the integrity and stability of the structure.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connection structure between the frame and the bottom of a backpack rack lifting platform, characterized in that, include: The car floor welding assembly includes a car floor plate and a plurality of connecting vertical pipes disposed within the car floor plate; The lower beam welding assembly includes a support frame, lower beam cantilever arms disposed on both sides of the support frame, bottom angle steel disposed on the lower beam cantilever arms, connecting side pipes disposed on both sides of the support frame and connected to the bottom angle steel, and at least one connecting middle pipe disposed in the middle of the support frame. The connecting middle pipe, the connecting side pipe, and the connecting vertical pipe are detachably connected.

2. The connection structure between the car frame and the car bottom of the backpack rack lifting platform according to claim 1, characterized in that, The connecting vertical pipe includes a first connecting vertical pipe disposed on both sides of the car floor and cooperating with the connecting side pipe, and at least one second connecting vertical pipe disposed in the middle of the car floor and cooperating with the connecting middle pipe.

3. The connection structure between the car frame and the car bottom of the backpack frame lifting platform according to claim 2, characterized in that, A welding plate is provided on the side of the connecting side tube facing the first connecting vertical tube. The welding plate has threaded holes and is connected to the first connecting vertical tube by bolts.

4. The connection structure between the car frame and the car bottom of the backpack frame lifting platform according to claim 2, characterized in that, A shim for adjusting the gap is provided between the connecting middle tube and the second connecting vertical tube. The connecting middle tube and the second connecting vertical tube are connected by bolts and nuts.

5. The connection structure between the car frame and the car bottom of the backpack rack lifting platform according to claim 1, characterized in that, A connecting horizontal tube is provided inside the car floor plate. The connecting horizontal tube is connected to the end of the connecting vertical tube. A connecting plate for connecting the car floor cover plate is provided on the connecting horizontal tube. The car floor cover plate is used to cover the bottom of the car floor plate.

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