Antistatic polyurethane roller structure

Abstract

The utility model provides an antistatic polyurethane roller structure, which comprises a mounting rack and polyurethane roller bodies detachably fixed at two ends of the mounting rack, a plurality of metal sheets are embedded and fixed on the outer walls of the polyurethane roller bodies in an annular array, mounting shafts are fixed in the polyurethane roller bodies, and the mounting shafts are fixed on the outer walls of the polyurethane roller bodies. Mounting grooves used for containing the polyurethane roller body are formed in the two ends of the mounting frame, rotating shafts are rotationally inserted into the two sides of the inner wall of each mounting groove, connecting grooves are formed in the side walls of the rotating shafts, and connecting parts inserted into the connecting grooves in a matched mode are fixed to the mounting shafts; a positioning block clamped with the inner wall of the connecting groove is elastically inserted into the outer wall of the connecting part, a connecting plate is fixed to the mounting frame, a plurality of bolts are embedded in the bottom end of the connecting plate in a rectangular array, and a telescopic groove is formed in the side wall of the connecting part, so that the polyurethane roller body is convenient to mount and dismount; and the convenience of replacing the polyurethane roller main body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, in particular to an antistatic polyurethane roller structure. Background Art

[0002] The polyurethane roller is composed of a metal wheel core and a polyurethane wheel surface. The load-bearing capacity of this type of roller is significantly better than that of a rubber wheel, and it has the advantages of long service life and light weight. At present, when using polyurethane rollers, they are connected to the bottom of the trolley through a shaft to facilitate pushing the trolley to move. During the movement, if the goods on the trolley are too heavy, the position of the shaft may not be able to withstand gravity and cause damage.

[0003] The patent with application number 202121227088.2 discloses a polyurethane roller structure with high load-bearing capacity, including two mounting plates, and the two mounting plates are provided with slide grooves in the vertical direction at positions close to one side and near the bottom of each other, and sliders are slidably connected inside the two slide grooves and near the bottom. A mounting frame is fixedly connected to the center of the top of the two mounting plates, and a connecting column is fixedly connected to the center of the bottom of the fixed plate. The left and right sides of the fixed rod pass through the mounting plates, and the left and right sides of the bottom of the fixed rod are fixedly connected to connecting plates.

[0004] However, this technical solution arranges a first roller and two second rollers to disperse the weight of the cargo, but in normal use, support is only provided by the first roller, while in load-bearing use, auxiliary support is provided by the two second rollers. Compared with the traditional method of dispersing weight with multiple rollers, the weight borne by a single roller in the above technical solution is increased, and the roller is more likely to be damaged. In addition, due to the spring structure arranged on the first roller, it is difficult to disassemble and replace it after damage, and the maintenance difficulty of the roller structure is increased. Utility Model Content

[0005] The purpose of the utility model is to provide an antistatic polyurethane roller structure in view of the deficiencies in the prior art. The two detachable polyurethane roller main body structures cooperate with the metal sheet structure on the outer wall of the polyurethane roller main body to achieve the functions of wear resistance and uniform force of the polyurethane roller main body, thereby solving the problem that the polyurethane roller main body is difficult to disassemble and replace after being damaged.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-static polyurethane roller structure, comprising a mounting frame and a polyurethane roller body detachably fixed at both ends of the mounting frame, the outer wall of the polyurethane roller body is embedded with a plurality of metal sheets in a circular array, and a mounting shaft is fixed in the polyurethane roller body, both ends of the mounting frame are provided with mounting grooves for accommodating the polyurethane roller body, both sides of the inner wall of the mounting groove are rotatably plugged with rotating shafts, the side walls of the rotating shaft are provided with connecting grooves, a connecting part that is fitted and plugged into the connecting groove is fixed on the mounting shaft, and a positioning block that is clamped to the inner wall of the connecting groove is elastically plugged into the outer wall of the connecting part.

[0007] Preferably, a connecting plate is fixed on the mounting frame, and a plurality of bolts are embedded and installed in a rectangular array at the bottom end of the connecting plate.

[0008] Furthermore, a side wall of the connecting portion is provided with a telescopic groove, and a spring is embedded in the telescopic groove.

[0009] Furthermore, the positioning block is slidably inserted in the telescopic slot, and an anti-slip portion abutting against the inner wall of the telescopic slot is fixed on the positioning block.

[0010] Furthermore, the rotating shaft is provided with a bearing embedded in the mounting frame, and the side walls of the rotating shaft are symmetrically provided with grooves.

[0011] Furthermore, positioning grooves are provided on both sides of the inner wall of the connecting groove, and one end of the positioning block extending out of the telescopic groove is inserted into the positioning groove.

[0012] Furthermore, a button is protruding from the inner wall of the groove, and one end of the button extending into the positioning groove abuts against the side wall of the positioning block.

[0013] The beneficial effects of the utility model are:

[0014] (1) The utility model reduces the weight borne by a single roller by providing two polyurethane roller bodies. At the same time, a metal sheet is fixed to the outer wall of the polyurethane roller body. The metal sheet can reduce the wear of the polyurethane roller body during use. At the same time, the metal sheet discharges electricity to the ground during contact with the ground, thereby avoiding the situation where static electricity exists on the surface of the polyurethane roller body during use.

[0015] (2) The utility model has rotating shafts rotatably installed on both sides of the inner wall of the installation groove, and the connecting portion of the installation shaft in the polyurethane roller body is inserted into the connecting groove of the side wall of the rotating shaft. At the same time, the spring in the telescopic groove of the side wall of the connecting portion pushes the positioning block to be inserted into the positioning groove, so that the installation shaft and the rotating shaft are axially fixed. When the polyurethane roller body is replaced, the button is squeezed from the side wall of the groove so that the button pushes the positioning block to move out of the positioning block, and then the connecting portion is slid and removed from the connecting groove, which is convenient for installing and disassembling the polyurethane roller body and improves the convenience of replacing the polyurethane roller body.

[0016] In summary, the utility model has the advantages of polyurethane roller being antistatic, wear-resistant and easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the polyurethane roller body of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the mounting frame of the utility model.

[0021] In the figure: 1. mounting frame; 2. connecting plate; 3. bolt; 4. mounting groove; 5. polyurethane roller body; 6. metal sheet; 7. mounting shaft; 8. connecting part; 9. telescopic groove; 10. spring; 11. positioning block; 12. anti-slip part; 13. rotating shaft; 14. bearing; 15. groove; 16. button; 17. connecting groove; 18. positioning groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] Embodiment 1

[0025] like Figure 1 and Figure 2 As shown, this embodiment provides an antistatic polyurethane roller structure, including a mounting frame 1 and a polyurethane roller body 5 detachably fixed to both ends of the mounting frame 1, the outer wall of the polyurethane roller body 5 is embedded with a plurality of metal sheets 6 in a ring array, and a mounting shaft 7 is fixed in the polyurethane roller body 5, both ends of the mounting frame 1 are provided with mounting grooves 4 for accommodating the polyurethane roller body 5, both sides of the inner wall of the mounting groove 4 are rotatably plugged with a rotating shaft 13, the side wall of the rotating shaft 13 is provided with a connecting groove 17, and a connecting portion 8 is fixed on the mounting shaft 7 and is inserted into the connecting groove 17, and the outer surface of the connecting portion 8 is provided with a connecting portion 8. A positioning block 11 is elastically inserted into the wall and is clamped with the inner wall of the connecting groove 17. A connecting plate 2 is fixed on the mounting frame 1. A plurality of bolts 3 are embedded in the bottom end of the connecting plate 2 in a rectangular array. The connecting plate 2 is fixed to the component used to support the polyurethane roller body 5 through the bolts 3. The two polyurethane roller bodies 5 reduce the weight borne by a single roller. The metal sheet 6 fixed to the outer wall of the polyurethane roller body 5 can reduce the wear of the polyurethane roller body 5 during use. At the same time, it discharges electricity to the ground during contact with the ground, thereby avoiding the presence of static electricity on the surface of the polyurethane roller body 5 during use.

[0026] Embodiment 2

[0027] like Figure 3 and Figure 4As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that: a telescopic slot 9 is provided on the side wall of the connecting portion 8, a spring 10 is embedded in the telescopic slot 9, a positioning block 11 is slidably inserted in the telescopic slot 9, and an anti-slip portion 12 is fixed on the positioning block 11 to abut against the inner wall of the telescopic slot 9, a bearing 14 embedded in the mounting frame 1 is provided on the rotating shaft 13, and grooves 15 are symmetrically provided on the side wall of the rotating shaft 13, positioning slots 18 are provided on both sides of the inner wall of the connecting slot 17, and one end of the positioning block 11 extending out of the telescopic slot 9 is inserted into the positioning slot 18. In the embodiment, the connecting portion 8 is fitted and inserted into the connecting groove 17 on the side wall of the rotating shaft 13. At the same time, the spring 10 in the telescopic groove 9 on the side wall of the connecting portion 8 pushes the positioning block 11 to be inserted into the positioning groove 18, so that the installation shaft 7 and the rotating shaft 13 are axially fixed. A button 16 is protruded from the inner wall of the groove 15. One end of the button 16 extends into the positioning groove 18 and abuts against the side wall of the positioning block 11. The button 16 is squeezed from the side wall of the groove 15, so that the button 16 pushes the positioning block 11 to move out of the positioning block 11, and then the connecting portion 8 is slid and removed from the connecting groove 17.

[0028] Working steps

[0029] Step 1: Two polyurethane roller bodies 5 are used to reduce the weight borne by a single roller. The metal sheet 6 fixed on the outer wall of the polyurethane roller body 5 can reduce the wear caused by the polyurethane roller body 5 when in use, and discharge to the ground during contact with the ground. When the polyurethane roller body 5 is damaged and needs to be replaced, the button 16 is squeezed from the side wall of the groove 15, so that the button 16 pushes the positioning block 11. After the positioning block 11 is removed, the connecting part 8 is slid and removed from the connecting groove 17, and after replacement, the connecting part 8 of the mounting shaft 7 in the polyurethane roller body 5 is matched and inserted into the connecting groove 17 of the side wall of the rotating shaft 13, and at the same time, the spring 10 in the telescopic groove 9 on the side wall of the connecting part 8 pushes the positioning block 11 to be inserted into the positioning groove 18, so that the mounting shaft 7 and the rotating shaft 13 are axially fixed. When the polyurethane roller body 5 is replaced, it is convenient to install and disassemble the polyurethane roller body 5, thereby improving the convenience of replacing the polyurethane roller body 5.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An antistatic polyurethane roller structure, comprising a mounting frame and a polyurethane roller body detachably fixed at both ends of the mounting frame, characterized in that: The outer wall of the polyurethane roller body is in a circular array with multiple metal sheets embedded and fixed therein, and a mounting shaft is fixed in the polyurethane roller body, both ends of the mounting frame are provided with mounting grooves for accommodating the polyurethane roller body, both sides of the inner wall of the mounting groove are rotatably plugged with rotating shafts, the side walls of the rotating shaft are provided with connecting grooves, a connecting part that fits in the connecting groove is fixed on the mounting shaft, and a positioning block that is elastically plugged into the outer wall of the connecting part and is clamped with the inner wall of the connecting groove.

2. The antistatic polyurethane roller structure according to claim 1, characterized in that: A connecting plate is fixed on the mounting frame, and a plurality of bolts are embedded and installed in a rectangular array at the bottom end of the connecting plate.

3. The antistatic polyurethane roller structure according to claim 1, characterized in that: A telescopic groove is formed on the side wall of the connecting portion, and a spring is embedded in the telescopic groove.

4. The antistatic polyurethane roller structure according to claim 3, characterized in that: The positioning block is slidably inserted in the telescopic slot, and an anti-slip portion abutting against the inner wall of the telescopic slot is fixed on the positioning block.

5. The antistatic polyurethane roller structure according to claim 1, characterized in that: The rotating shaft is provided with a bearing embedded in the mounting frame, and the side wall of the rotating shaft is symmetrically provided with grooves.

6. The antistatic polyurethane roller structure according to claim 5, characterized in that: Positioning grooves are provided on both sides of the inner wall of the connecting groove, and one end of the positioning block extending out of the telescopic groove is inserted into the positioning groove.

7. The antistatic polyurethane roller structure according to claim 6, characterized in that: A button is protruding from the inner wall of the groove, and one end of the button extending into the positioning groove abuts against the side wall of the positioning block.

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