Big arm oil pipe of miniature four-wheel-drive loader

Abstract

The utility model relates to the technical field of loaders, in particular to a miniature four-wheel-drive loader big arm oil pipe which comprises two connecting pipes and a hose, the two connecting pipes are communicated with the left side and the right side of the hose respectively, first protective pipes are welded between the two connecting pipes and the outside of the hose, and a plurality of protective blocks distributed at equal intervals are connected to the outside of the first protective pipes. The hose is sleeved with two second protection pipes, the upper ends and the lower ends of the second protection pipes are connected with a first cloth strip and a second cloth strip respectively, the front face of the first cloth strip is connected with a hook-and-loop fastener needle face, the rear face of the second cloth strip is connected with a hook-and-loop fastener loop face, and a sliding assembly is arranged between each second protection pipe and the hose. The connecting pipe is L-shaped, and one end, close to the outside, of the protective block is arc-shaped; according to the utility model, the joints of the hoses and the connecting pipe are effectively protected, meanwhile, the friction between the hoses and between the hoses and other parts is effectively reduced, and the service life of the big arm oil pipe of the miniature four-wheel-drive loader is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of loaders and discloses an oil pipe for a large arm of a miniature four-wheel drive loader. Background Art

[0002] The mini four-wheel-drive loader is a common transport machine. Compared with ordinary-sized loaders, the mini four-wheel-drive loader has the characteristics of small size and strong maneuverability. The loader is provided with a boom for connecting the vehicle body and the bucket. The boom is usually divided into a large arm and a small arm. The large arm is connected to the vehicle body, and the small arm is connected to the large arm and the bucket. The mini four-wheel-drive loader drives the boom to rotate through the lifting cylinder. The lifting cylinder usually works hydraulically when working, so the lifting cylinder needs to be connected to the oil tank through an oil pipe to ensure the flow of hydraulic oil through the oil pipe;

[0003] A lifting cylinder of the existing micro four-wheel drive loader's boom needs to be connected to two oil pipes, an oil inlet pipe and an oil outlet pipe. Due to the volume limitation of the micro four-wheel drive loader, the distance between the front boom and the articulated seat is short, and the width of the tiger head is relatively narrow, which leads to friction between the oil pipes and between the oil pipes and other components, which may cause wear of the oil pipes and shorten their service life. Utility Model Content

[0004] The purpose of the utility model is to provide a micro four-wheel drive loader arm oil pipe in view of the above-mentioned problems and shortcomings, which effectively protects the connection between the hose and the connecting pipe, and effectively reduces the friction between the hoses and between the hoses and other components, thereby extending the service life of the micro four-wheel drive loader arm oil pipe.

[0005] A micro four-wheel drive loader arm oil pipe, comprising a connecting pipe and a hose, wherein two connecting pipes are provided and are respectively connected to the left and right sides of the hose;

[0006] A protective tube 1 is welded between the two connecting tubes and the outside of the hose, and a plurality of protective blocks equidistantly distributed are connected to the outside of the protective tube 1;

[0007] The outer sleeve of the hose is provided with two protective tubes 2, the upper and lower ends of the protective tubes 2 are respectively connected to cloth strips 1 and 2, the front of the cloth strip 1 is connected to the needle surface of Velcro, and the back of the cloth strip 2 is connected to the fleece surface of Velcro, and a sliding component is provided between each protective tube 2 and the hose.

[0008] Furthermore, the upper end of the connecting pipe is connected to a joint, and the joint is provided with a plurality of threaded holes.

[0009] Furthermore, the connecting pipe is L-shaped, and the outer end of the protective block is arc-shaped.

[0010] Furthermore, the sliding assembly includes a connecting block and a ball bearing, and the connecting block is provided with a plurality of blocks which are evenly distributed and are all embedded and connected in the second protective tube.

[0011] Furthermore, the balls are provided in a plurality and are rotatably connected to the inner sides of a plurality of the connecting blocks respectively, and the balls are slidably connected to the outer wall of the hose.

[0012] Beneficial effects of the utility model:

[0013] The setting of the connecting pipe can effectively reduce the friction between the connecting pipe and the hose. The rubber protective block can separate the connection between the connecting pipe and the hose from other parts of the mini four-wheel drive loader, and the protective blocks distributed in an annular shape and at equal distances can better disperse the external impact force and better protect the connection between the connecting pipe and the hose.

[0014] After installing the two boom oil pipes, a total of four protective tubes 2 are set on the two boom oil pipes. The four protective tubes 2 on the two boom oil pipes are moved to a staggered setting. After the movement is completed, wrap the cloth strips 1 and 2 on the outside of the hose of the other boom oil pipe to ensure that the cloth strip 1 is outside the cloth strip 2. At this time, the Velcro needle surface and the Velcro fur surface can fit each other. Connect the four protective tubes 2 according to the above steps to avoid the two hoses bending in different directions during use and increase interference with other components. The cloth strips 1, 2 and protective tube 2 can also effectively reduce the friction between the hoses and between the hoses and other components, better protect the hoses, and thus extend the service life of the boom oil pipe of the micro four-wheel drive loader. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall main plane structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the right side cross-sectional structure of the protection tube of the utility model;

[0017] Figure 3 It is a schematic diagram of a three-dimensional structure of a protection tube of the utility model.

[0018] Markings in the figure: connecting pipe 1, joint 2, hose 3, protective tube 1 4, protective block 5, protective tube 2 6, cloth strip 1 7, Velcro needle surface 8, cloth strip 2 9, Velcro fleece surface 10, connecting block 11, ball 12. DETAILED DESCRIPTION

[0019] like Figures 1 to 3As shown, the present application is a micro four-wheel drive loader arm oil pipe, including a connecting pipe 1 and a hose 3, wherein the connecting pipe 1 is provided with two and respectively connected to the left and right sides of the hose 3, and a protective pipe 4 is welded between the two connecting pipes 1 and the outside of the hose 3, and the outside of the protective pipe 4 is connected to a plurality of protective blocks 5 distributed at equal distances;

[0020] The hose 3 is externally sleeved with two protective tubes 2 6, the upper and lower ends of the protective tube 2 6 are respectively connected to a cloth strip 1 7 and a cloth strip 2 9, the front of the cloth strip 1 7 is connected to a Velcro needle surface 8, and the back of the cloth strip 2 9 is connected to a Velcro fleece surface 10, and a sliding component is provided between each protective tube 2 6 and the hose 3;

[0021] The upper end of the connecting pipe 1 is connected to a joint 2, and the joint 2 is provided with a plurality of threaded holes. The connecting pipe 1 is L-shaped, and the outer end of the protective block 5 is arc-shaped;

[0022] When the micro four-wheel drive loader boom oil pipe is in use, the connector 2 at one end is installed on the oil tank, and the connector 2 at the other end is installed on the lifting cylinder. Several threaded holes on the connector 2 can be threaded with bolts, and the bolts are threadedly connected with the bolt holes pre-opened at the connected position to ensure the stability of the installation of the connector 2 and the stability of the entire micro four-wheel drive boom oil pipe;

[0023] The materials of the protective block 5, the protective tube 2 6 and the protective tube 1 4 are all made of rubber materials, such as Figure 1 As shown, a protective tube 4 is welded between the two connecting tubes 1 and the outside of the hose 3, and the protective tube 4 can protect the connection between the connecting tube 1 and the hose 3. The material of the connecting tube 1 is usually steel, and the material of the hose 3 is usually rubber. The setting of the connecting tube 1 can effectively reduce the friction between the connecting tube 1 and the hose 3, so as to better protect the hose 3;

[0024] like Figure 3 As shown, since the protection tube 1 4 is externally connected with a plurality of equally spaced protection blocks 5, the outer end of the protection block 5 is arc-shaped, and the rubber protection block 5 can separate the connection between the connection tube 1 and the hose 3 from other parts of the mini four-wheel drive loader, and the annular equally spaced protection blocks 5 can better disperse the external impact force and better protect the connection between the connection tube 1 and the hose 3;

[0025] The sliding assembly includes a connecting block 11 and a ball 12. The connecting block 11 is provided with a plurality of evenly distributed blocks and all are embedded and connected in the protective tube 2 6. The ball 12 is provided with a plurality of blocks and is respectively rotatably connected to the inner side of the plurality of connecting blocks 11. The ball 12 is slidably connected to the outer wall of the hose 3.

[0026] Two arm oil pipes need to be installed on each lifting cylinder on the arm of the micro four-wheel drive loader. The two arm oil pipes are connected to the oil inlet and outlet of the lifting cylinder respectively. After installing the two arm oil pipes according to the above steps, Figure 2 As shown, the two protective tubes 26 located outside the hose 3 can move along the outer wall of the hose 3, and the ball 12 can roll when the protective tube 26 moves. The ball 12 can reduce the friction between the protective tube 26 and the hose 3 when the protective tube 26 moves. A total of four protective tubes 26 are arranged outside the two boom oil pipes. The four protective tubes 26 on the two boom oil pipes are moved to a staggered arrangement. After the movement is completed, the cloth strips 17 and 29 are wrapped around the outside of the hose 3 of the other boom oil pipe to ensure that the cloth strip 17 is located outside the cloth strip 29. At this time, the Velcro needle surface 8 The cloth strip 17 and the Velcro fleece surface 10 can fit each other, the cloth strip 17 and the cloth strip 29 can limit the protective tube 2 6 by the friction between the hose 3, and the four protective tubes 26 are connected according to the above steps to avoid the two hoses 3 bending in different directions during use and increasing the interference with other components. The cloth strips 17, the cloth strips 29 and the protective tube 26 can also effectively reduce the friction between the hoses 3 and the hoses, and between the hoses and other components, better protect the hose 3, thereby extending the service life of the oil pipe of the micro four-wheel drive loader arm.

Claims

1. A micro four-wheel drive loader boom oil pipe, comprising a connecting pipe (1) and a hose (3), wherein the connecting pipe (1) is provided with two and is respectively connected to the left and right sides of the hose (3), characterized in that: A protective tube (4) is welded between the two connecting tubes (1) and the outside of the hose (3), and the outside of the protective tube (4) is connected to a plurality of protective blocks (5) distributed at equal distances; The hose (3) is externally sleeved with two protective tubes (6), the upper and lower ends of the protective tubes (6) are respectively connected to a cloth strip (7) and a cloth strip (9), the front of the cloth strip (7) is connected to a Velcro needle surface (8), and the rear of the cloth strip (9) is connected to a Velcro fleece surface (10), and a sliding component is provided between each of the protective tubes (6) and the hose (3).

2. The micro four-wheel drive loader boom oil pipe according to claim 1, characterized in that: The upper end of the connecting pipe (1) is connected to a joint (2), and a plurality of threaded holes are formed on the joint (2).

3. The micro four-wheel drive loader boom oil pipe according to claim 1, characterized in that: The connecting pipe (1) is L-shaped, and the outer end of the protective block (5) is arc-shaped.

4. The micro four-wheel drive loader boom oil pipe according to claim 1, characterized in that: The sliding assembly comprises a connecting block (11) and a ball (12); the connecting block (11) is provided with a plurality of blocks which are evenly distributed and are all embedded and connected in the second protective tube (6).

5. The micro four-wheel drive loader boom oil pipe according to claim 4, characterized in that: A plurality of the balls (12) are provided and are rotatably connected to the inner sides of a plurality of the connection blocks (11), and the balls (12) are slidably connected to the outer wall of the hose (3).

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