Double-rod type roll-over stand

Abstract

The utility model discloses a double-rod type roll-over stand which is characterized in that the double-rod type roll-over stand comprises two main supports and two telescopic rods arranged between the two main supports, and each telescopic rod comprises a middle pipe and two side pipes; the first ends of the two side pipes are fixed to the two main supports respectively, and the second ends of the two side pipes are inserted into the middle pipe and can move in the axial direction. Wherein first fixing seats are fixed to the two ends of the middle pipe, first guide rollers are arranged on the first fixing seats, the first guide rollers are located at the pipe opening position of the middle pipe and abut against the top walls of the side pipes, second fixing seats are fixed to the second ends of the side pipes, and second guide rollers are arranged on the second fixing seats and abut against the top walls of the side pipes. The second guide roller is located on a pipe opening of the second end of the side pipe and can be supported on the inner bottom wall of the middle pipe. The use stability and convenience of the roll-over stand can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the field of painting tools, in particular to a double-rod type turnover rack. Background Art

[0002] The turnover rack is widely used in the painting operation of automobile frames.

[0003] The patent document with the publication number of CN107350111A discloses an automobile painting turnover rack. It solves the problems of unreasonable design in the prior art. The automobile painting turnover rack includes two symmetrically arranged main brackets, and the two main brackets are connected by a connecting rod. A vertical support pipe and a lifting column with the lower end inserted into the vertical support pipe are respectively arranged on each main bracket. A rolling contact structure is arranged between the lifting column and the vertical support pipe. Horizontal fixed pipes are respectively arranged at the upper ends of each lifting column, and the lifting column or the fixed pipe is connected with a lifting driving mechanism. The painting rack also includes two symmetrically arranged lifting frames. A rotating shaft that is inserted into the fixed pipe one by one and can rotate relative to the fixed pipe is respectively connected to each lifting frame. A locking mechanism that can circumferentially lock between the rotating shaft and the fixed pipe when the rotating shaft rotates to a set position is arranged between the rotating shaft and the fixed pipe.

[0004] In the technical solution disclosed in this document, the two main brackets are only connected by a single connecting rod. Therefore, there is a problem of low stability in use, that is, the connecting rod is prone to excessive force and deformation. Secondly, the connecting rod is a telescopic structure, which is only formed by sleeving multiple sleeves. Therefore, the friction between the sleeves is large, and it is not easy to axially move relative to each other, which brings inconvenience to the telescoping of the connecting rod. Therefore, the connecting rod structure in this turnover rack needs to be further improved. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a double-rod type turnover rack, which can significantly improve the stability and convenience of the turnover rack in use.

[0006] To achieve the above object, the utility model provides the following technical solution:

[0007] A double-rod type turnover rack, characterized in that: it includes two main brackets and two telescopic rods arranged between the two main brackets. Each telescopic rod includes an intermediate pipe and two side pipes;

[0008] The first ends of the two side pipes are respectively fixed on the two main brackets, and the second ends are inserted into the intermediate pipe and can axially move;

[0009] Among them, first fixing seats are fixed at both ends of the middle pipe. The first fixing seats are provided with first guiding rollers, and the first guiding rollers are located at the pipe orifice positions of the middle pipe and are for the top walls of the side pipes to abut against. A second fixing seat is fixed at the second end of the side pipe. The second fixing seat is provided with a second guiding roller, and the second guiding roller is located at the pipe orifice of the second end of the side pipe and can support on the inner bottom wall of the middle pipe.

[0010] Preferably, the cross-sectional shapes of the first fixing seat, the second fixing seat, the middle pipe and the side pipe are the same. The first fixing seat is sleeved on the outer side of the middle pipe, and the second fixing seat is clamped inside the side pipe.

[0011] Preferably, two first connecting plates extending outwards are provided at the outer ends of the top walls of the first fixing seats, and both ends of the first guiding roller are respectively connected to the two first connecting plates. Two second connecting plates extending outwards are provided at the outer ends of the bottom walls of the second fixing seats, and both ends of the second guiding roller are respectively connected to the two second connecting plates.

[0012] Preferably, positioning bolts capable of pressing the side pipe are arranged on the middle pipe.

[0013] Preferably, auxiliary supporting wheels are arranged on the side pipe.

[0014] Preferably, the side pipe is formed by sleeving at least two pipe bodies, and the pipe bodies are also positioned by positioning bolts.

[0015] The advantages of the present utility model are as follows:

[0016] 1. By arranging two telescopic rods between the two main brackets, the stability of the two main brackets for positioning the vehicle frame can be significantly improved;

[0017] 2. The second end of the side pipe extending into the middle pipe is supported on the inner bottom wall of the middle pipe by the second guiding roller, and at the same time, the first guiding roller at the end of the middle pipe presses against the top wall of the side pipe. Therefore, when the side pipe moves in the middle pipe, it is a rolling friction, which can significantly improve the convenience of the telescopic rod for telescoping. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the double-rod type turnover rack provided by this embodiment;

[0019] Figure 2 is a schematic diagram of the first fixing seat and the first guiding roller provided by this embodiment;

[0020] Figure 3 is a schematic diagram of the second fixing seat and the second guiding roller provided by this embodiment. Detailed Embodiment

[0021] Combined with Figures 1 to 3A further description is given to the double-rod type turnover rack of the present utility model.

[0022] A double-rod type turnover rack, characterized in that it includes two main brackets 1 and two telescopic rods 2 arranged between the two main brackets 1. The main bracket 1 is a prior art, so its specific structure will not be introduced in detail in this embodiment. The two ends of the two telescopic rods 2 are respectively fixed on the chassis of the two main brackets 1 and are in a left-right parallel distribution state. Each telescopic rod 2 includes an intermediate tube 22 and two side tubes 21.

[0023] The first ends of the two side tubes 21 each have a connecting plate and are respectively fixed on the two main brackets 1 through the connecting plate and corresponding bolts. The second ends are inserted into the intermediate tube 22 and can move axially. Among them, first fixing seats 23 are fixed on both ends of the intermediate tube 22. The first fixing seats 23 are provided with first guide rollers 231. The first guide rollers 231 are located at the pipe orifice positions of the intermediate tube 22 and are for the top walls of the side tubes 21 to abut against. Second fixing seats 24 are fixed on the second ends of the side tubes 21. The second fixing seats 24 are provided with second guide rollers 241. The second guide rollers 241 are located at the pipe orifices of the second ends of the side tubes 21 and can support on the inner bottom wall of the intermediate tube 22.

[0024] The cross-sectional shapes of the first fixing seats 23, the second fixing seats 24, the intermediate tube 22 and the side tubes 21 are the same, all being quadrilateral structures. The first fixing seats 23 are sleeved on the outer sides of the intermediate tubes 22 and are fixed by bolts or directly welded. The second fixing seats 24 are clamped inside the pipe orifices of the side tubes 21 and are fixed by bolts or directly welded. In this structure, the first fixing seats 23 are located outside the intermediate tubes 22, and the second fixing seats 24 are located inside the side tubes 21, so that the first fixing seats 23 and the second fixings will not affect the movement of the side tubes 21 in the intermediate tubes 22. Secondly, the quadrilateral-structured first fixing seats 23 and second fixing seats 24 can also ensure the stability of the fixation on the intermediate tubes 22 and the side tubes 21, and play a role in strengthening the structure of the pipe orifice positions of the intermediate tubes 22 and the side tubes 21.

[0025] On the top wall of the first fixing seat 23, there are two first connecting plates 232 extending outside the end wall of the middle pipe 22, and both ends of the first guiding roller 231 are respectively connected to the two first connecting plates 232. At the same time, the bottom of the first guiding roller 231 is lower than the inner top wall of the middle pipe 22, so that the outer top wall of the side pipe 21 near the pipe orifice of the middle pipe 22 can contact the first guiding roller 231, reducing the friction between the side pipe 21 and the middle pipe 22. On the bottom wall of the second fixing seat 24, there are two second connecting plates 242 extending outside the end wall of the side pipe 21, and both ends of the second guiding roller 241 are respectively connected to the two second connecting plates 242. At the same time, the bottom of the second guiding roller 241 is lower than the outer bottom wall of the side pipe 21, so that the second end of the side pipe 21 extending into the middle pipe 22 is directly supported on the inner bottom wall of the middle pipe 22 through the second guiding roller 241 to reduce the friction. Therefore, the convenience of the movement of the side pipe 21 in the middle pipe 22 can be significantly improved through the first guiding roller 231 and the second guiding roller 241.

[0026] A positioning bolt 25 capable of pressing the side pipe 21 is arranged on the middle pipe 22, and the positioning bolt 25 is located at a position near the pipe orifice of the middle pipe 22. That is, there is a threaded hole on the top wall of the middle pipe 22, and the positioning bolt 25 is fitted in the threaded hole. After the positioning bolt 25 is tightened, the lower end of the positioning bolt 25 can press against the outer top wall of the side pipe 21, and at the same time, the outer bottom wall of the side pipe 21 near the pipe orifice is pressed against the inner bottom wall of the middle pipe 22 to position the side pipe 21 in the middle pipe 22.

[0027] An auxiliary support wheel 26 is arranged on the side pipe 21, and the auxiliary support wheel 26 can reduce the load of the telescopic rod 2, which can not only ensure the stability of the whole turnover frame but also facilitate the movement of the side pipe 21 in the middle pipe 22.

[0028] In the structure of the side pipe 21, the side pipe 21 is formed by at least two pipe bodies sleeved, and the pipe bodies are also positioned by positioning bolts. In this embodiment, each side pipe 21 is formed by three pipe bodies sleeved, namely a large pipe 211, a middle pipe 212 and a small pipe 213, which are sleeved in sequence. This structure can shorten the length of the side pipe 21, which can not only increase the overall telescopic range of the telescopic rod 2 but also facilitate disassembly and transportation.

[0029] In the connection structure between the side pipe 21 and the main bracket 1, the large pipe 211 is fixed on the main bracket 1 through the connecting plate at the end and the corresponding bolts; the auxiliary support wheel 26 is arranged at one end of the large pipe 211 away from the main bracket 1; the second fixing seat 24 is fixed at one end of the small pipe 213 away from the main bracket 1, and only the small pipe 213 can extend into the middle pipe 22.

[0030] During specific use, two telescopic rods 2 are arranged between the two main brackets 1, which can significantly improve the stability of the two main brackets 1 when positioning the vehicle frame; one end of the side tube 21 extending into the middle tube 22 is supported on the inner bottom wall of the middle tube 22 by the second guide roller 241, and at the same time, the first guide roller 231 at the end of the middle tube 22 presses against the top wall of the side tube 21. Therefore, when the side tube 21 moves in the middle tube 22, it is a rolling friction, which can significantly improve the convenience of the telescopic rod 2 to expand and contract.

[0031] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in the present utility model are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood in combination with the drawings and according to specific circumstances.

[0032] Unless otherwise clearly specified and defined, in the present utility model, if there are terms such as "arranged", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The above are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A double-rod turning frame, characterized by: It includes two main supports and two telescopic rods arranged between the two main supports, and each telescopic rod includes a middle tube and two side tubes; The first ends of the two side tubes are fixed on the two main brackets respectively, and the second ends are inserted into the middle tube and can move axially; Among them, a first fixed seat is fixed on both ends of the middle tube, and the first fixed seat has a first guide roller. The first guide roller is located at the pipe mouth of the middle tube and is abutted against the top wall of the side tube. A second fixed seat is fixed on the second end of the side tube, and the second fixed seat has a second guide roller. The second guide roller is located on the pipe mouth of the second end of the side tube and can be supported on the inner bottom wall of the middle tube.

2. The double-rod flip frame according to claim 1 is characterized in that: The first fixing seat, the second fixing seat, the middle tube and the side tube have the same cross-sectional shape. The first fixing seat is sleeved on the outside of the middle tube, and the second fixing seat is clamped in the side tube.

3. The double-rod flip frame according to claim 1 is characterized in that: The top wall of the first fixed seat is provided with two first connecting plates extending to the outside of the middle tube end wall, and the two ends of the first guide roller are respectively connected to the two first connecting plates. The bottom wall of the second fixed seat is provided with two second connecting plates extending to the outside of the side tube end wall, and the two ends of the second guide roller are respectively connected to the two second connecting plates.

4. The double-rod flip frame according to claim 1 is characterized in that: The middle tube is provided with positioning bolts capable of pressing the side tubes tightly.

5. The double-rod turning frame according to claim 1 is characterized in that: Auxiliary supporting wheels are arranged on the side tubes.

6. The double-rod turning frame according to claim 5 is characterized in that: The side tube is formed by at least two tube bodies being sleeved together, and the tube bodies are also positioned by positioning bolts.

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