Rotary pipe clamp mechanism
By setting up the boss and bolt and nut structure in the pipe clamp mechanism of the scissor type aerial working platform, the free rotation of the pipe clamp is achieved, solving the wear and fatigue problems of the hose in different bent states, extending the hose life and reducing the cost.
Patent Information
- Application Number
- CN202420462490.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The hose of the scissor type aerial working platform is prone to oil leakage at the connection between the motor and the control valve, especially in small vehicles. Because the pipe clamp cannot rotate freely under different bent states, the hose will wear and fatigue, shortening its service life.
A rotating pipe clamp mechanism is designed to reduce sliding friction by setting a boss between the pipe clamps and between the pipe clamps and the bracket, and the combined structure of bolts and nuts enable the pipe clamps to clamp the hose while clamping the hose. Free spin.
The free rotation of the pipe clamp in different bent states is achieved, which reduces the bending force of the hose, extends the service life of the hose, and uses national standard parts and low-cost parts to simplify procurement and manufacturing.
Smart Images
Figure CN222142241U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of aerial work equipment, and in particular relates to a rotating pipe clamp mechanism. Background Art
[0002] The sales of scissor lifts have exploded in recent years, and the number of scissor lifts in the market has also increased significantly. As a result, product failures have also occurred frequently, and hose oil leakage is one of them. The part with the highest failure rate of hoses on scissor lifts (hereinafter referred to as scissor lifts) is the connection between the motor and the control valve, especially for small scissor lifts, which have limited space for arranging hoses. This problem is more prominent. Figure 8 As shown in the figure, the motor hose of the scissor lift truck is clamped by two layers of double fixed pipe clamps. Fig. 9 As shown in the figure, when the scissor lift truck is moving in a straight line, the tire is facing forward (the angle between the tire and the vehicle body is 0°), and the motor hose is in a bent state. Fig.10 As shown, when the wheel frame turns to the left or right, the angle between the tire and the body is about 90°, and the motor hose is in another bending state. The two bending states of the motor hose are very different, resulting in the hose clamp clamping the hose in one bending state. In the other bending state, the hose cannot be bent freely because it is clamped by the hose clamp. In this way, the hose will generate a large bending force under a small bending radius. Because the scissor lift truck turns frequently, this bending force will accelerate the wear of the outer rubber layer of the hose and the hose clamp on the one hand, and accelerate the bending fatigue of the steel wire layer of the hose on the other hand, resulting in a reduced service life. Utility Model Content
[0003] The utility model aims to provide a rotating pipe clamp mechanism to solve the technical problem that the pipe clamp mechanism can rotate freely while clamping the rubber hose.
[0004] To achieve the above purpose, the specific technical solution of the utility model is as follows:
[0005] A rotating pipe clamp mechanism comprises a plurality of pipe clamps arranged vertically, wherein the pipe clamps are provided with screw holes penetrating the upper and lower ends thereof in the vertical direction, and bolts are passed through the screw holes to connect the plurality of pipe clamps, and the pipe clamps are mounted on a bracket by bolts, and bosses are provided on the outer sides of the screw holes between two adjacent pipe clamps, and the pipe clamp at the lowest end is also provided with a boss on the outer side of the screw hole on its lower surface.
[0006] Therefore, the utility model reduces the contact area between the pipe clamps and the sliding friction between the pipe clamps by arranging a boss on the outer side of the screw hole between two adjacent pipe clamps. At the same time, the pipe clamp located at the lowermost end is also provided with a boss on the outer side of the screw hole on its lower surface, which reduces the sliding friction between the pipe clamp and the bracket and makes it easier for the pipe clamp to rotate during use.
[0007] Furthermore, a first nut is provided on the mounting platform of the bracket, and the bolt is mounted on the first nut.
[0008] Furthermore, the upper end of the first nut protrudes relative to the upper surface of the mounting platform, a first gasket is provided between the first nut and the pipe clamp, and a gap exists between the first gasket and the mounting platform.
[0009] Furthermore, the bolt passes through the first nut and is mounted on the first nut through the second nut.
[0010] Furthermore, the lower end of the first nut protrudes relative to the lower surface of the mounting platform, a second gasket is provided between the first nut and the second nut, and a gap exists between the second gasket and the mounting platform.
[0011] Furthermore, there is a gap between the first nut and the mounting platform.
[0012] Furthermore, the pipe clamp is a double fixed pipe clamp.
[0013] The utility model has the following advantages:
[0014] 1) The rotating pipe clamp mechanism of the utility model can rotate freely while clamping the hose, thereby reducing the bending force on the hose and increasing the service life of the hose.
[0015] 2) Except for the pipe clamp, the other parts of the rotating pipe clamp mechanism of the utility model are all national standard parts, which are convenient to purchase and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the rotary pipe clamp mechanism of the utility model;
[0017] Figure 2 This is an exploded view of the rotary pipe clamp mechanism of the utility model;
[0018] Figure 3 This is a three-dimensional diagram of the pipe clamp of the utility model;
[0019] Figure 4 This is a front view of the pipe clamp of the utility model;
[0020] Figure 5 It is a partial enlarged view of the rotary pipe clamp mechanism of the utility model;
[0021] Figure 6 The tire is bent toward the front of the hose. In the figure, A is the hose state and B is the tire state.
[0022] Figure 7 The angle between the tire and the vehicle body is about 90°, and the hose is bent. In the figure, A is the hose state, and B is the tire state.
[0023] Figure 8 It is a schematic diagram of the structure of the existing rotating pipe clamp mechanism;
[0024] Fig. 9 The tire is in the state of bending the rubber hose toward the front in the prior art, in which A is the rubber hose state and B is the tire state;
[0025] Fig.10 This is the hose bending state in the prior art where the angle between the tire and the vehicle body is about 90°. In the figure, A is the hose state, and B is the tire state.
[0026] Markings in the figure: 100, bolt; 200, pipe clamp; 201, boss; 300, first gasket; 301, second gasket; 400, first nut; 401, second nut; 500, bracket; 501, mounting platform. DETAILED DESCRIPTION
[0027] In order to better understand the purpose, structure and function of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings.
[0028] like Figure 1 and Figure 2 As shown, a rotating pipe clamp mechanism of this embodiment includes a plurality of pipe clamps 200 arranged vertically. Preferably, the pipe clamps 200 are double fixed pipe clamps. The pipe clamps 200 are provided with screw holes penetrating the upper and lower ends thereof in the vertical direction. Bolts 100 pass through the screw holes to connect the plurality of pipe clamps 200. The pipe clamps 200 are mounted on a bracket 500 by means of the bolts 100. Specifically, a first nut 400 is provided on the mounting platform 501 of the bracket 500, and the bolt 100 is mounted on the first nut 400. Figure 3 and Figure 4 As shown, a boss 201 is provided on the outer side of the screw hole between two adjacent pipe clamps 200, and a boss 201 is also provided on the outer side of the screw hole on the lower surface of the pipe clamp 200 at the lowest end. The boss on the pipe clamp can reduce the contact area between the upper and lower rows of pipe clamps, thereby reducing the sliding friction and making it easier for the upper and lower rows of pipe clamps to rotate.
[0029] Preferably, if Figure 2 and Figure 5As shown, the bolt 100 passes through the first nut 400 and is mounted on the first nut 400 through the second nut 401. The upper end of the first nut 400 protrudes relative to the upper surface of the mounting platform 501, a first gasket 300 is provided between the first nut 400 and the pipe clamp 200, and a gap exists between the first gasket 300 and the mounting platform 501. The lower end of the first nut 400 protrudes relative to the lower surface of the mounting platform 501, a second gasket 301 is provided between the first nut 400 and the second nut 401, and a gap exists between the second gasket 301 and the mounting platform 501. There is also a gap between the first nut 400 and the mounting platform 501.
[0030] This embodiment improves the appearance of the existing pipe clamps, reduces the contact area between the upper and lower rows of pipe clamps, thereby reducing the sliding friction and making it easier for the upper and lower rows of pipe clamps to rotate. During installation, first put the hose into the pipe clamps 200 and 201, tighten them with bolts 100, large washers 300 and first nuts 400, and then fix the entire pipe clamp on the mounting plate 500 with large washers 301 and second nuts 401. Figure 6 and Figure 7 As shown, it is ensured that the pipe clamp as a whole can rotate. Furthermore, the first nut 400 can be replaced with a bearing.
[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A rotating pipe clamp mechanism, comprising a plurality of pipe clamps (200) arranged vertically, wherein the pipe clamps (200) are provided with screw holes penetrating the upper and lower ends thereof in the vertical direction, and bolts (100) are passed through the screw holes to connect the plurality of pipe clamps (200), characterized in that: The pipe clamp (200) is mounted on the bracket (500) by means of bolts (100), and bosses (201) are provided on the outer sides of the screw holes between two adjacent pipe clamps (200), and the pipe clamp (200) located at the lowermost end is also provided with bosses (201) on the outer sides of the screw holes on its lower surface.
2. The rotating pipe clamp mechanism according to claim 1, characterized in that: A first nut (400) is provided on the mounting platform (501) of the bracket (500), and the bolt (100) is mounted on the first nut (400).
3. The rotating pipe clamp mechanism according to claim 2, characterized in that: The upper end of the first nut (400) protrudes relative to the upper surface of the mounting platform (501), a first gasket (300) is provided between the first nut (400) and the pipe clamp (200), and a gap exists between the first gasket (300) and the mounting platform (501).
4. The rotating pipe clamp mechanism according to claim 2, characterized in that: The bolt (100) passes through the first nut (400) and is mounted on the first nut (400) through the second nut (401).
5. The rotating pipe clamp mechanism according to claim 4, characterized in that: The lower end of the first nut (400) protrudes relative to the lower surface of the mounting platform (501), a second gasket (301) is provided between the first nut (400) and the second nut (401), and a gap exists between the second gasket (301) and the mounting platform (501).
6. The rotating pipe clamp mechanism according to claim 5, characterized in that: There is a gap between the first nut (400) and the mounting platform (501).
7. The rotating pipe clamp mechanism according to claim 1, characterized in that: The pipe clamp (200) is a double-jointed fixed pipe clamp.