Gearbox oil filling pipe structure

Abstract

The utility model discloses an oil filling pipe structure of a gearbox, which belongs to the technical field of gearboxes and comprises a hard pipe joint, a hose, an oil filling hard pipe, a hose clamp and an oil filling pipe cover, one end of the hose is connected with the hard pipe joint, and the other end of the hose is connected with the oil filling hard pipe. Hose clamps are arranged at the connecting position of the hose and the hard pipe joint and the connecting position of the hose and the refueling hard pipe; and an oil filling pipe cover is arranged at the end part of the oil filling hard pipe. Fatigue fracture caused by long-term use can be avoided, the structure is more reliable, and the applicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of gearboxes, and in particular relates to a gearbox refueling pipe structure. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] As a component for daily transmission refueling, the fuel filler pipe is essential for routine refueling and maintenance. A properly constructed fuel filler pipe makes refueling more convenient and prolongs its life. Cracks in the pipe can make refueling difficult and lead to oil leaks during operation. The fuel filler pipe is bolted to the transmission refueling port, and refueling is performed through the top port. To facilitate refueling, the fuel filler pipe port must extend to the outside of the vehicle frame. Most fuel filler pipes are constructed of a single, long, cantilevered steel pipe. During vehicle operation, the fuel filler pipe vibrates significantly, and prolonged vibration can lead to fatigue fracture at the base, which can cause oil leaks. Utility Model Content

[0004] In view of the above problems, the utility model provides a gearbox refueling pipe structure, which can avoid fatigue fracture during long-term use, and has a more reliable structure and strong applicability.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A transmission refueling pipe structure includes a hard pipe joint, a hose, a refueling hard pipe, a throat clamp, and a refueling pipe cap. One end of the hose is connected to the hard pipe joint, and the other end of the hose is connected to the refueling hard pipe. A throat clamp is provided at the connection position between the hose and the hard pipe joint and the connection position between the hose and the refueling hard pipe; and the refueling pipe cap is provided at the end of the refueling hard pipe.

[0007] Furthermore, the hard pipe joint includes a flange and a short joint, the flange and the short joint are fixedly connected, and an annular protrusion is provided at the end of the short joint.

[0008] Furthermore, the flange is provided with a plurality of threaded holes, and first flange surface bolts are arranged in the threaded holes.

[0009] Furthermore, the refueling rigid pipe includes a joint, a fixing plate, a fixing block, a refueling steel pipe and a liquid level gauge.

[0010] Furthermore, a fixing block is provided at one end of the connector, and the connector is fixedly connected to the fixing block.

[0011] Furthermore, a refueling steel pipe is provided at one end of the fixed block, and the fixed block is fixedly connected to the refueling steel pipe.

[0012] Furthermore, a liquid level gauge is provided on one side of the fixed block, and the liquid level gauge is detachably connected to the fixed block.

[0013] Furthermore, a fixing plate is provided on the other side of the fixing block, and the fixing plate is detachably connected to the fixing block.

[0014] Furthermore, threaded holes are provided at both ends of the fixing plate, and second flange surface bolts are provided in the threaded holes.

[0015] Furthermore, an annular protrusion is provided at one end of the connector.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are:

[0017] The refueling pipe structure of the present invention is a three-section structure, namely, it is composed of a hard pipe joint, a hose, and a refueling hard pipe, which are connected by a throat clamp. Protrusions are provided at the ends of the hard pipe joint and the refueling hard pipe. The protrusions can effectively prevent the throat clamp from falling off, and can avoid the problem of fatigue fracture of the cantilever structure of the overall steel pipe. Fatigue fracture will not occur during long-term use, and the structure is more reliable. It is also easy to modify, and some steel pipes, hoses, fixing brackets, flanges, etc. can be modified as needed to adapt to various spaces and structures, and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1 This is a three-dimensional structural diagram of the transmission oil filling pipe structure of the present utility model;

[0020] Figure 2 This is a front view of the transmission oil filling pipe structure of the present invention;

[0021] Figure 3 This is a rear view of the transmission oil filling pipe structure of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the hard pipe joint of the utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the refueling hard pipe of the utility model;

[0024] In the figure: 1. Hard pipe joint; 11. Short joint; 12. Flange; 2. Hose; 3. Fueling pipe; 31. Joint; 32. Fixing plate; 33. Fixing block; 34. Fueling steel pipe; 35. Liquid level gauge; 4. First flange surface bolt; 5. Hose clamp; 6. Second flange surface bolt; 7. Fueling pipe cap. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] The fuel pipe is connected to the gearbox fuel port by bolts, and refueling is done through the top fuel port. To facilitate refueling, the fuel pipe port needs to extend to the outside of the frame. It is mostly an integral steel pipe structure, which is relatively long and a cantilever structure. During the operation of the vehicle, the fuel pipe will vibrate greatly. In addition, long-term vibration will cause fatigue fracture at the root, which will lead to oil leakage.

[0027] The present invention will be described in detail below with reference to the accompanying drawings. This embodiment discloses a transmission oil filling pipe structure, such as Figure 2 and Figure 3 As shown, it includes a hard pipe joint 1, a hose 2, a refueling hard pipe 3, a throat clamp 5 and a refueling pipe cap 7. One end of the hose 2 is connected to the hard pipe joint 1, and the other end of the hose 2 is connected to the refueling hard pipe 3. A throat clamp 5 is set at the connection position of the hose 2 and the hard pipe joint 1 and the connection position of the hose 2 and the refueling hard pipe 3; Figure 1 As shown, a fuel pipe cap 7 is provided at the end of the fuel pipe 3 , and the fuel pipe cap 7 is used to seal the pipe opening of the fuel pipe 3 after refueling.

[0028] The rigid pipe joint 1 is fixed to the gearbox via the first flange face bolts 4. O-rings and paper gaskets can be added between the two for sealing as needed. Both ends of the hose 2 are fastened by hose clamps 55. The refueling rigid pipe 3 is fixed to the vehicle frame via the second flange face bolts 6 to make it more stable. The top end can be equipped with different types of refueling pipe caps 7 as needed.

[0029] The refueling pipe structure is a three-section structure, namely, it is composed of a hard pipe joint 1, a hose 2, and a refueling hard pipe 3, which are connected by a throat clamp 5. Protrusions are provided at the ends of the hard pipe joint 1 and the refueling hard pipe 3. The protrusions can effectively prevent the throat clamp 5 from falling off, and can avoid the problem of fatigue fracture of the cantilever structure of the overall steel pipe. Fatigue fracture will not occur during long-term use, and the structure is more reliable. It is also easy to modify. Part of the steel pipe, hose 2, fixed bracket, flange 12, etc. can be modified as needed to adapt to various spaces and structures, and has strong applicability.

[0030] like Figure 4As shown, the rigid pipe joint 1 includes a flange 12 and a short nipple 11, which are fixedly connected. An annular protrusion is provided at the end of the short nipple 11. Flange 12 is provided with several threaded holes, in which first flange face bolts 4 are installed. The rigid pipe joint 1 is composed of flange 12 and short nipple 11. An annular protrusion at one end prevents the throat clamp 5 from falling off. The design can be modified as needed based on the interface configuration of flange 12.

[0031] like Figure 5 As shown, the refueling rigid pipe 3 includes a joint 31, a fixed plate 32, a fixed block 33, a refueling steel pipe 34 and a liquid level gauge 35. A fixed block 33 is provided at one end of the joint 31, and the joint 31 is fixedly connected to the fixed block 33. A refueling steel pipe 34 is provided at one end of the fixed block 33, and the fixed block 33 is fixedly connected to the refueling steel pipe 34. A liquid level gauge 35 is provided on one side of the fixed block 33, and the liquid level gauge 35 is detachably connected to the fixed block 33. An annular protrusion is provided at one end of the joint 31. A fixed plate 32 is provided on the other side of the fixed block 33, and the fixed plate 32 is detachably connected to the fixed block 33. Threaded holes are provided at both ends of the fixed plate 32, and second flange surface bolts 6 are provided in the threaded holes.

[0032] The refueling hard pipe 3 is welded by a joint 31, a fixing plate 32, a fixing block 33, and a refueling steel pipe 34. A fixed liquid level gauge 35 on the block can facilitate oil level observation. One end of the joint 31 is an annular protrusion to prevent the throat hoop 5 from falling off. The fixing plate 32 can fix the frame in a fixed position and change its shape.

[0033] When in use, connect the hard pipe joint 1, hose 2, and refueling hard pipe 3 through the hose clamp 5, then fix the hard pipe joint 1 to the gearbox through the first flange surface bolt 4, and fix the refueling hard pipe 3 to the frame through the second flange surface bolt 6. The installation is completed and refueling can be carried out.

[0034] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A gearbox refueling pipe structure, characterized in that: It includes a hard pipe joint, a hose, a refueling hard pipe, a throat clamp and a refueling pipe cap. One end of the hose is connected to the hard pipe joint, and the other end of the hose is connected to the refueling hard pipe. A throat clamp is set at the connection position of the hose and the hard pipe joint and the connection position of the hose and the refueling hard pipe; the refueling pipe cap is set at the end of the refueling hard pipe.

2. A transmission oil filling pipe structure according to claim 1, characterized in that: The hard pipe joint includes a flange and a short joint, the flange and the short joint are fixedly connected, and an annular protrusion is provided at the end of the short joint.

3. A transmission oil filling pipe structure according to claim 2, characterized in that: The flange is provided with a plurality of threaded holes, and first flange surface bolts are arranged in the threaded holes.

4. The transmission oil filling pipe structure according to claim 1, characterized in that: The refueling hard pipe includes a joint, a fixing plate, a fixing block, a refueling steel pipe and a liquid level gauge.

5. A transmission oil filling pipe structure according to claim 4, characterized in that: A fixing block is provided at one end of the joint, and the joint is fixedly connected to the fixing block.

6. A transmission oil filling pipe structure according to claim 5, characterized in that: A refueling steel pipe is provided at one end of the fixing block, and the fixing block is fixedly connected to the refueling steel pipe.

7. A transmission oil filling pipe structure according to claim 6, characterized in that: A liquid level gauge is provided on one side of the fixing block, and the liquid level gauge is detachably connected to the fixing block.

8. The transmission oil filling pipe structure according to claim 7, characterized in that: A fixing plate is provided on the other side of the fixing block, and the fixing plate is detachably connected to the fixing block.

9. A transmission oil filling pipe structure according to claim 8, characterized in that: Threaded holes are provided at both ends of the fixing plate, and second flange surface bolts are provided in the threaded holes.

10. The transmission oil filling pipe structure according to claim 9, characterized in that: An annular protrusion is provided at one end of the joint.

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