Pipe routing device for a work machine and work machine comprising the device

By using a combination of connector components and connector nuts in the pipe passage device of the operating machinery, the increased cost and risk of damage caused by protruding rigid pipes are solved, achieving a lower cost and more versatile pipe connection.

CN224678783UActive Publication Date: 2026-08-25CATERPILLAR INC
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Patent Information

Application Number
CN202521782251.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-08-25
Estimated Expiration
2035-08-21

AI Technical Summary

Technical Problem

In existing pipeline bypass devices for machinery, rigid pipes protrude beyond the rear sealing plate, increasing manufacturing costs and posing a risk of damage, resulting in poor versatility.

Method used

The connector component is fixed to the mounting plate by a connector nut, so that when the mounting plate is connected to the plate-shaped component, part of the connector component is accommodated in the through hole, avoiding welding and pre-reserved notches. The connector component is detachable to accommodate different plate thicknesses.

Benefits of technology

It reduces manufacturing costs, avoids the risk of damage to rigid pipes, and improves versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of pipe overboard device for working machine and the working machine comprising the pipe overboard device of this.The working machine includes the plate-like component (10) with through-hole (101).The pipe overboard device includes joint member (1), mounting plate (2) and joint nut (3).Mounting plate can be connected to plate-like component and is provided with first mounting hole (21), joint member passes through first mounting hole and is fixed to mounting plate by joint nut.The length of joint member is set so that when mounting plate is connected to plate-like component, the portion of joint member on the side of mounting plate away from joint nut is all contained in through-hole.The pipe overboard device of the utility model does not need to weld hard pipe, and when assembling counterweight or traction frame, it is not necessary to reserve avoidance gap on these equipment, which reduces cost.Even when not installing any equipment, since joint member does not protrude from plate-like component, there is no risk of collision.
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Description

Technical Field

[0001] This utility model relates to the technical field of components for operating machinery, and in particular to a pipe passage plate device for operating machinery and operating machinery including the pipe passage plate device. Background Technology

[0002] Construction machinery may be configured with different equipment depending on the requirements. For example, a grader typically has a ripper mounted on the rear end plate 10' of its rear frame; therefore, the rear end plate 10' may have various... Figure 1 The diagram shows a pipe-through device including a rigid pipe 1' and a mounting plate 2', used to connect the ripper's control oil circuit. The rigid pipe 1' passes through the mounting hole on the mounting plate 2' and is fixed to the mounting plate 2' by welding. After the mounting plate 2' is fixed to the rear sealing plate 10' with fasteners, one end of the rigid pipe 1' protrudes through the rear sealing plate 10' to connect to the ripper's end oil circuit, and the other end of the rigid pipe 1' connects to the control oil circuit system of the working machinery. Without the ripper installed, a counterweight 7' or a towing frame can be added.

[0003] However, in existing pipe-to-plate devices, the rigid pipe 1' protrudes beyond the rear sealing plate 10'. When a counterweight 7' is added to the rear sealing plate 10', such as... Figure 1 As shown, a notch 71' needs to be cut into the counterweight 7' to avoid interference with the rigid tube 1'. Both welding the rigid tube 1' and pre-cutting the notch on the counterweight 7' increase manufacturing costs. Moreover, when the rear end plate 10' is not equipped with any equipment, the rigid tube 1' protruding from the rear end plate 10' is at risk of being damaged by impact. In addition, the rear end plates of the rear frame of different models have different thicknesses, and welding the rigid tube requires designing different lengths for different plate thicknesses, resulting in poor versatility. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the above-mentioned problems and / or other problems existing in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a pipe-passing plate device for working machinery is provided, the working machinery including a plate-shaped member with a through hole. The pipe-passing plate device includes a connector member, a mounting plate, and a connector nut. The mounting plate is connectable to the plate-shaped member and is provided with a first mounting hole, the connector member passing through the first mounting hole and fixed to the mounting plate by the connector nut. The length of the connector member is set such that when the mounting plate is connected to the plate-shaped member, the portion of the connector member on the side of the mounting plate opposite to the connector nut is entirely accommodated within the through hole.

[0006] According to one embodiment of the present invention, the connector component includes a first section and a second section connected to each other and both cylindrical in shape. The first section passes through the first mounting hole and is fixed to the connector nut. The second section is disposed on the side of the mounting plate opposite to the connector nut. The diameter of the first section is less than or equal to the diameter of the first mounting hole, the diameter of the second section is greater than the diameter of the first mounting hole, and the length of the second section is less than the thickness of the plate-shaped component.

[0007] According to one embodiment of the present invention, the pipeline through-plate device further includes a first connector, the first end of the first connector extending from the side of the plate-shaped member away from the mounting plate into the through hole and being detachably connected to the second section, and the second end of the first connector extending out of the through hole for connecting the pipe connector of the first pipeline.

[0008] According to one embodiment of the present invention, the pipeline plate device further includes a plug, which is detachably connected to the second section in the through hole, and the sum of the lengths of the plug and the second section after they are connected is less than or equal to the thickness of the plate-shaped member.

[0009] According to one embodiment of the present invention, the pipeline through-plate device further includes a second connector, which is detachably connected to the portion of the connector member that passes through the connector nut, for connecting the pipe connector of the second pipeline.

[0010] According to one embodiment of the present invention, the second connector is an angle adjustment connector.

[0011] According to one embodiment of the present invention, the mounting plate is provided with two first mounting holes, and there are corresponding two connector members and two connector nuts. The connector member passing through one of the first mounting holes is used to connect the liquid inlet pipe, and the connector member passing through the other first mounting hole is used to connect the liquid outlet pipe.

[0012] According to one embodiment of the present invention, the pipeline plate device further includes a fastener, the mounting plate is provided with a second mounting hole, and the fastener is used to connect the mounting plate to the plate-shaped member by passing through the second mounting hole.

[0013] According to another aspect of the present invention, a working machine is provided, which includes a plate-shaped member having through holes and a pipe-passing plate device as described above.

[0014] According to one embodiment of the present invention, the working machine is a grader, and the plate-shaped component is the rear end plate of the rear frame of the grader.

[0015] According to the pipe-through plate device of this utility model, the connector component is fixed to the mounting plate by a connector nut. The length of the connector component is set such that when the mounting plate is connected to the plate-like component, the portion of the connector component on the side of the mounting plate opposite to the connector nut is entirely accommodated within the through hole of the plate-like component. Compared with the prior art, the pipe-through plate device of this utility model does not require welding of rigid pipes, and it does not require reserving clearance gaps on these devices when assembling counterweights or traction frames, thereby reducing costs. Even when no equipment is assembled, there is no risk of collision because the connector component does not protrude from the plate-like component. The connector component is detachably fixed to the mounting plate by the connector nut, allowing for the replacement of connector components of different lengths for different plate-like component thicknesses, thus improving versatility. Attached Figure Description

[0016] The features and advantages of this utility model will become clear from the following detailed description provided with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and therefore should not be considered as limitations on this utility model, wherein:

[0017] Figure 1 A schematic diagram of a pipe-through plate device according to the prior art is shown.

[0018] Figure 2 A partial perspective view of a working machine according to a first embodiment of the present invention is shown, wherein working tools are mounted on a plate-shaped component of the working machine.

[0019] Figure 3 Show Figure 2 An exploded view of the pipework bypass device of the operating machinery shown.

[0020] Figure 4 Show Figure 3 The diagram shows a cross-sectional view of the pipework overpass device.

[0021] Figure 5 A partial perspective view of a working machine according to a second embodiment of the present invention is shown, wherein a counterweight is installed on the plate-shaped component of the working machine.

[0022] Figure 6 Show Figure 5 An exploded view of the pipe-through-plate device shown.

[0023] Figure 7 Show Figure 6 The diagram shows a cross-sectional view of the pipework overpass device.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Connector component; 11. First section; 12. Second section; 2. Mounting plate; 21. First mounting hole; 22. Second mounting hole; 3. Connector nut; 4. Fastener; 41. Washer; 51. First connector; 52. Plug; 53. Second connector; 6. Working tool; 7. Counterweight; 10. Plate-shaped component; 101. Through hole; 20. First pipeline; 201. Pipe connector; 30. Second pipeline; 301. Pipe connector. Detailed Implementation

[0026] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to more fully understand and implement the present invention. However, it will be apparent to those skilled in the art that implementations of the present invention may not include some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. Rather, the present invention can be conceived to be implemented with any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0027] The terms "first" and "second" are used below to describe the elements of this application. These terms are used only to distinguish the individual elements and not to limit the nature, order, or number of these elements. The terms "comprising" and "having" are used to indicate an open-ended inclusion and mean that there may be additional elements / components besides those listed.

[0028] Figure 2 A partial perspective view of a working machine according to a first embodiment of the present invention is shown. The working machine in this embodiment is a grader. Figure 2 As shown, the working machinery includes a plate-shaped component 10, a working implement 6 (in this embodiment, a ripper) mounted on the plate-shaped component 10, and a pipeline through-plate device. The plate-shaped component 10 can be any frame component suitable for mounting working implements, towing frames, counterweights, etc., such as the rear end plate of a rear frame. The working implement 6 needs to be controlled via a control hydraulic circuit; therefore, a through hole 101 is provided on the plate-shaped component 10, and the pipeline through-plate device is provided at the through hole 101 to provide a reserved interface for the control hydraulic circuit to pass through the plate-shaped component 10.

[0029] Figure 3 and Figure 4 It shows Figure 2 A pipe-through device is installed on the plate-shaped member 10, and a first pipe 20 is connected to the pipe-through device. For example... Figure 3 and Figure 4As shown, the pipeline plate device in this embodiment may include a connector component 1, a mounting plate 2, a connector nut 3, and a fastener 4.

[0030] The mounting plate 2 is generally rectangular in shape, and has a first mounting hole 21 and a second mounting hole 22. The first mounting hole 21 is closer to the center of the mounting plate 2 than the second mounting hole 22. The connector member 1 extends from the first side of the mounting plate 2 ( Figure 3 and Figure 4 (Left side) passes through the first mounting hole 21 and through the connector nut 3 from the second side of the mounting plate 2 opposite to the first side ( Figure 3 and Figure 4 The mounting plate 2 (on the right side) is fixed to the mounting plate 2. Fastener 4 passes through the second mounting hole 22 and connects to the plate member 10, thereby fixing the mounting plate 2 to the plate member 10. In this embodiment, the fastener 4 is a screw, which can be screwed into the threaded hole on the plate member 10 through the washer 41 and the second mounting hole 22 of the mounting plate 2 in sequence. It is understood that the fastener 4 can also be a bolt, which, in conjunction with a nut on the other side, fixes the mounting plate 2 to the plate member 10.

[0031] With the mounting plate 2 fixed to the plate-shaped member 10, the first mounting hole 21 corresponds to the position of the through hole 101, so that the portion of the connector member 1 located on the first side of the mounting plate 2 can be disposed within the through hole 101. Thus, when the length of the portion of the connector member 1 on the first side of the mounting plate 2 away from the connector nut 3 is set to be less than the thickness of the plate-shaped member 10, this portion can be fully accommodated within the through hole 101.

[0032] Continue to refer to Figure 3 and Figure 4 As shown, the connector member 1 may include a first segment 11 and a second segment 12 connected to each other. The first segment 11 and the second segment 12 are each cylindrical, and preferably integrally formed. The diameter of the first segment 11 is less than or equal to the diameter of the first mounting hole 21. The diameter of the second segment 12 is greater than the diameter of the first mounting hole 21. That is, the diameter of the second segment 12 is greater than the diameter of the first segment 11, thereby forming a stepped surface at the connection between the first segment 11 and the second segment 12. The first segment 11 passes through the first mounting hole 21 from the first side of the mounting plate 2, and this stepped surface can abut against the first side surface of the mounting plate 2. The portion of the first segment 11 that passes through the mounting plate 2 and protrudes from the second side surface of the mounting plate 2 may be provided with external threads for threaded connection with the connector nut 3. The length of the second segment 12 is less than the thickness of the plate member 10, thereby allowing the second segment 12 to be integrally accommodated within the through hole 101. The connector member 1 is preferably a standard threaded pipe connector, that is, both ends of the connector member 1 have standardized threads. In practical applications, a joint member 1 with an appropriate length can be selected based on the thickness of the plate member 10.

[0033] In this embodiment, the pipe-through-plate device further includes a first connector 51, such as... Figure 3 and Figure 4 As shown. The first connector 51 is generally elongated cylindrical and has a first end and a second end opposite to each other, and an extension connecting the first end and the second end. The first connector 51 can be extended from the first side of the plate member 10 away from the mounting plate 2 ( Figure 3 and Figure 4 The first connector 51 extends into the through hole 101 from the left side of the first connector 11, and its first end near the mounting plate 2 has external threads. The end of the second connector 12 opposite to the first connector 11 has internal threads. Thus, the first connector 51 can be detachably (threadedly connected) to the connector member 1 in the through hole 101 via its first end.

[0034] The second end of the first connector 51 extends beyond the through hole 101 of the plate member 10 and is used to connect to the pipe connector 201 of the first pipeline 20. For example, the second end of the first connector 51 may have external threads, and the pipe connector 201 of the first pipeline 20 may have internal threads, so that the pipe connector 201 of the first pipeline 20 can be threadedly connected to the second end of the first connector 51. The first connector 51 is preferably a standard threaded pipe connector.

[0035] Figure 5 A partial perspective view of a working machine according to a second embodiment of the present invention is shown. In this embodiment, a counterweight 7 is mounted on the plate-shaped member 10 of the working machine. Figure 5 Only a portion of the counterweight 7 is shown, namely the mounting structure for mounting the counterweight 7 to the plate-like member 10. This mounting structure may include a plate-shaped mounting portion and two connecting lugs extending from the mounting portion to one side and arranged side-by-side. The mounting portion can be mounted to the plate-like member 10 using fasteners (e.g., bolts), and the two connecting lugs can be used to connect other components of the counterweight 7. The counterweight 7 does not require hydraulic control, therefore its mounting portion can cover the through-hole 101 of the plate-like member 10, as... Figure 7 As shown. Figure 6 and Figure 7 The relative positional relationship between the mounting structure of counterweight 7 and the pipe-through plate device is also shown.

[0036] In this embodiment, the pipe-through-plate device may further include a plug 52, such as... Figure 6 and Figure 7As shown. As described above in conjunction with the first embodiment, the end of the second segment 12 of the connector member 1 facing away from the first segment 11 may have internal threads. The plug 52 may have external threads, thereby allowing the plug 52 to be detachably (i.e., threadedly connected) fixed to the second segment 12 within the through hole 101, thus sealing the internal passage of the connector member 1. After the plug 52 is fixed to the connector member 1, the sum of the length of the portion of the plug 52 extending beyond the second segment 12 and the length of the second segment 12 is less than or equal to the thickness of the plate member 10. Therefore, the plug 52 is also accommodated within the through hole 101 after being connected to the second segment 12, thereby avoiding interference with the mounting portion of the counterweight 7.

[0037] refer to Figures 2 to 7 As shown, in the first and second embodiments of this utility model, the pipe-through-plate device may further include a second connector 53. In this embodiment, the second connector 53 is an angle-adjustable connector, one end of which is detachably connected (e.g., by a threaded connection or a compression fitting) to the end of the first section 11 facing away from the second section 12, and the other end is connected to the pipe connector 301 of the second pipe 30. The two ends of this angle-adjustable connector can be at a 90-degree angle, thereby adapting to the extension direction of the second pipe 30 and avoiding installation difficulties caused by mismatch between the extension directions of the pipe-through-plate device and the second pipe 30.

[0038] In the above embodiment, the control oil circuit of the working tool 6 is provided with two first pipes 20 and two second pipes 30. Correspondingly, the mounting plate 2 is provided with two first mounting holes 21, and there are also two corresponding connector components 1 and connector nuts 3. One connector component 1 is used to connect one first pipe 20 and the corresponding second pipe 30 to form an inlet pipe. The other connector component 1 is used to connect the other first pipe 20 and the corresponding second pipe 30 to form an outlet pipe. The inlet pipe and the outlet pipe are respectively connected to the rod chamber and the rodless chamber of the control cylinder to control the piston rod to extend or retract in the cylinder, thereby actuating the working tool 6.

[0039] This utility model also provides a working machine that includes the above-mentioned pipeline plate device.

[0040] Industrial applicability

[0041] The pipe-through plate device according to this utility model is suitable for operating machinery that can be installed on one of many types of equipment, and is particularly suitable for graders that can be equipped with rippers, counterweights, and towing frames. However, it should be understood that the pipe-through plate device according to this utility model can also be used in other operating machinery that requires the use of control oil circuits through plate-shaped members to actuate operating tools.

[0042] by Figures 2 to 7Taking the pipe-through plate device shown as an example, during assembly, the connector member 1 is first passed through the first mounting hole 21 from the first side of the mounting plate 2, so that the stepped surface of the connector member 1 abuts against the first side surface of the mounting plate 2. The connector nut 3 is threaded from the second side of the mounting plate 2 to the external thread of the connector member 1, thereby fixing the connector member 1 to the mounting plate 2. Then, with the second section 12 of the connector member 1 inserted into the through hole 101, the fastener 4 is passed through the gasket 41 and the second mounting hole 22 of the mounting plate 2 and connected to the plate member 10, thereby fixing the pipe-through plate device to the plate member 10. The second connector 53 can be connected to the external thread of the first section 11 before or after the mounting plate 2 is fixed to the plate member 10, for connecting the pipe connector 301 of the second pipe 30.

[0043] When choosing to install the work tool 6 on the plate member 10, the first connector 51 can be threaded onto the second section 12 of the connector member 1. Then, the pipe connector 201 of the first pipeline 20 can be connected to the corresponding first connector 51.

[0044] If the counterweight 7 is to be installed on the plate member 10, the plug 52 must be threaded onto the second section 12 of the joint member 1 to seal the internal passage of the joint member 1. Then, the counterweight 7 can be installed on the plate member 10.

[0045] As described above, in the pipe-through-plate device of this utility model, the connector member 1 is detachably fixed to the mounting plate 2 by the connector nut 3. The length of the connector member 1 is set such that when the mounting plate 2 is connected to the plate-shaped member 10, the portion of the connector member 1 on the side of the mounting plate 2 opposite to the connector nut 3 is entirely accommodated within the through hole 101 of the plate-shaped member 10. Compared with the prior art, the pipe-through-plate device of this utility model does not require welding of rigid pipes, and does not require reserving clearance gaps on these devices when assembling the counterweight 7 or the traction frame, thereby reducing costs. Even when no equipment is assembled, there is no risk of collision because the connector member 1 does not protrude from the plate-shaped member 10.

[0046] In addition, the pipe-passing plate device of this utility model can select joint components 1 of different lengths according to the thickness of the plate-shaped components 10 of different models, which has better versatility than welded rigid pipes.

[0047] Various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of this invention. Other embodiments of this invention will be apparent to those skilled in the art based on the practice of this invention disclosed in this specification. This specification and the examples disclosed herein should be considered illustrative only, and the true scope of this invention is defined by the appended claims and their equivalents.

Claims

1. A pipe-through plate device for a working machine, the working machine comprising a plate-shaped member (10) having a through hole (101). Its features are, The pipeline plate device includes a connector component (1), a mounting plate (2), and a connector nut (3). The mounting plate can be connected to the plate-shaped component and is provided with a first mounting hole (21). The connector component passes through the first mounting hole and is fixed to the mounting plate by the connector nut. The length of the connector member is set such that when the mounting plate is connected to the plate-shaped member, the portion of the connector member on the side of the mounting plate opposite to the connector nut is entirely accommodated within the through hole.

2. The pipeline bypass device according to claim 1, characterized in that, The connector component (1) includes a first section (11) and a second section (12) connected to each other and both cylindrical in shape. The first section passes through the first mounting hole (21) and is fixed to the connector nut (3). The second section is disposed on the side of the mounting plate (2) opposite to the connector nut. The diameter of the second section is greater than the diameter of the first mounting hole. The diameter of the first section is less than or equal to the diameter of the first mounting hole. The length of the second section is less than the thickness of the plate-shaped component (10).

3. The pipeline bypass device according to claim 2, characterized in that, The pipe-through plate device further includes a first connector (51), the first end of which extends partially into the through hole (101) from the side of the plate member (10) away from the mounting plate (2) and is detachably connected to the second section (12), and the second end of the first connector (51) extends out of the through hole (101) for connecting the pipe connector (201) of the first pipe (20).

4. The pipeline bypass device according to claim 2, characterized in that, The pipe-through plate device also includes a plug (52), which is detachably fixed to the second section (12) in the through hole (101), and the sum of the lengths of the plug and the second section after they are connected to each other is less than or equal to the thickness of the plate member (10).

5. The pipeline bypass device according to any one of claims 1 to 4, characterized in that, The pipe-through plate device further includes a second connector (53), which is detachably connected to the portion of the connector member (1) that passes through the connector nut (3) for connecting the pipe connector (301) of the second pipe (30).

6. The pipeline bypass device according to claim 5, characterized in that, The second connector (53) is an angle adjustment connector (53).

7. The pipeline bypass device according to any one of claims 1 to 4, characterized in that, The mounting plate (2) is provided with two first mounting holes (21), and there are two corresponding connector members (1) and connector nuts (3). The connector member passing through one of the first mounting holes is used to connect the liquid inlet pipe, and the connector member passing through the other first mounting hole is used to connect the liquid outlet pipe.

8. The pipeline bypass device according to any one of claims 1 to 4, characterized in that, The pipeline plate device further includes a fastener (4), and the mounting plate (2) is provided with a second mounting hole (22). The fastener is used to connect the mounting plate to the plate-shaped member (10) by passing through the second mounting hole.

9. A type of operating machinery, characterized in that, It includes a plate-shaped member (10) having a through hole (101) and a pipe-through plate device according to any one of claims 1 to 8.

10. The operating machinery according to claim 9, characterized in that, The machine is a grader, and the plate-shaped component (10) is the rear end plate of the rear frame of the grader.