Piping arrangement and engineering vehicle

Abstract

The application provides a pipeline device and an engineering vehicle. The pipeline device comprises a first connecting pipe, a second connecting pipe and a connecting assembly. The second connecting pipe is assembled with the first connecting pipe and communicates with the first connecting pipe. The connecting assembly is arranged on the first connecting pipe. The connecting assembly comprises a rotating piece. The rotating piece is in rolling contact with the second connecting pipe, so that the first connecting pipe can rotate relative to the second connecting pipe. The rotating piece is used for limiting the second connecting pipe from separating from the first connecting pipe.

Description

[0001] This application claims priority to Chinese patent application No. 202311263076.9, filed on September 27, 2023, entitled "Pipeline Installations and Engineering Vehicles", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of engineering machinery technology, and more specifically, to a pipeline device and an engineering vehicle. Background Technology

[0003] Currently, in related technologies, when two pipelines in a pipeline device rotate relative to each other, the connection point of the pipelines achieves the rotation function of the connecting pipe through the mutual friction of the spherical surfaces of the ball cup and ball head. In order to ensure that the two pipelines can rotate stably, the surface precision requirements of the ball cup and ball head are high, resulting in high processing costs. Furthermore, when the gas inside the pipeline is high-temperature gas, it is impossible to lubricate the sliding friction pair, and the connection point is prone to wear and corrosion, which can lead to jamming of the sliding friction pair and affect the rotation effect of the pipeline. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the first aspect of this application proposes a piping device.

[0006] The second aspect of this application proposes an engineering vehicle.

[0007] In view of the above, a first aspect of this application provides a piping device comprising: a first connecting pipe, a second connecting pipe, and a connecting assembly; the second connecting pipe is assembled with the first connecting pipe and communicates with the first connecting pipe; the connecting assembly is disposed on the first connecting pipe and includes a rotating member that makes rolling contact with the second connecting pipe to enable the first connecting pipe to rotate relative to the second connecting pipe, and the rotating member is used to restrict the second connecting pipe from separating from the first connecting pipe.

[0008] In this technical solution, the second connecting pipe is assembled with the first connecting pipe and communicates with it, allowing gas in the second connecting pipe to enter the first connecting pipe. A connecting assembly is disposed on the first connecting pipe, and the first connecting pipe is rotatably connected to the second connecting pipe via the connecting assembly. For example, this piping device can be used in the cargo box heating system of an articulated dump truck. The first and second connecting pipes are respectively disposed on the front and rear frames of the cargo box heating system, and the gas discharged from the heating system enters the second connecting pipe through the first connecting pipe. When the articulated dump truck turns or tilts, the front and rear frames rotate at a angle of less than or equal to 45° in the left-right direction, and the first and second connecting pipes rotate at their connection positions.

[0009] The connecting assembly includes a rotating component, which, exemplarily, can be a roller or a ball. When the first or second connecting pipe rotates, the rotating component rolls into contact with the second connecting pipe, allowing the first connecting pipe to rotate relative to it. The rotating component restricts the second connecting pipe from separating from the first connecting pipe. This rotational connection reduces the contact area between the first and second connecting pipes, significantly reducing sliding friction to the point where it becomes negligible. This allows the first and second connecting pipes to rotate through rolling friction, reducing friction during rotation and preventing jamming. It also lowers the surface finish requirements of the first and second connecting pipes, reducing processing and production costs. Furthermore, when high-temperature gas is present inside the first and second connecting pipes (exemplarily, a gas temperature of 200°C or higher), it can still lubricate the rolling contact area, preventing corrosion and ensuring smooth rotation of the first and second connecting pipes.

[0010] Specifically, there can be multiple connecting components to make the connection between the first connecting pipe and the second connecting pipe more stable. For example, there are three connecting components.

[0011] Thus, the connecting component is disposed on the first connecting pipe, and a part of the connecting component rolls into contact with the second connecting pipe, so that the first connecting pipe can rotate relative to the second connecting pipe, reducing the frictional force when the first connecting pipe and the second connecting pipe rotate, reducing the surface precision requirements of the first connecting pipe and the second connecting pipe, reducing the processing cost and production cost of the pipeline device, facilitating the lubrication of the rolling contact position of the connecting component and the second connecting pipe, and ensuring smooth rotation of the first connecting pipe and the second connecting pipe.

[0012] In addition, the pipeline device in the above embodiments provided in this application may also have the following additional technical features:

[0013] Optionally, in some technical solutions provided in this application, the first connecting pipe includes: a pipe body and a first mounting member, the first mounting member being disposed on the pipe body and connected to a connecting assembly; the connecting assembly includes a second mounting member; the second mounting member is connected to the first mounting member, the second mounting member is sleeved on the second connecting pipe, and a rotating member is located between the first mounting member and the second mounting member, and the rotating member is in rolling contact with the second connecting pipe.

[0014] Thus, the first connecting pipe is connected to the connecting assembly through the first mounting member, the rotating member can rotate within the space defined by the first mounting member and the second mounting member, and the connecting assembly makes rolling contact with the second connecting pipe through the rotating member.

[0015] Optionally, in some of the technical solutions provided in this application, the connecting assembly further includes a connecting rod, which is connected to the first mounting member and the second mounting member, and a rotating member is sleeved on the connecting rod so that the rotating member can rotate around the axis of the connecting rod.

[0016] Thus, the first mounting component and the second mounting component are connected by a connecting rod, and the rotating component can rotate around the axis of the connecting rod and roll into contact with the second connecting tube.

[0017] In some technical solutions provided in this application, the connecting assembly further includes an elastic element; the elastic element is disposed on a first side of the first mounting member, and / or disposed on a first side of the second mounting member, wherein the first side of the first mounting member is the side of the first mounting member that is opposite to the second mounting member, and the first side of the second mounting member is the side of the second mounting member that is opposite to the first mounting member; wherein, the elastic element is used to provide a pre-tightening force to bring the first mounting member and the second mounting member closer to each other, so that the first mounting member and the rotating member drive the first connecting pipe and the second connecting pipe to come into close contact with each other.

[0018] Thus, the connecting assembly also includes an elastic element, which allows the first connecting tube and the second connecting tube to fit together tightly, ensuring the sealing of the connection between the first connecting tube and the second connecting tube.

[0019] In some technical solutions provided in this application, the connecting assembly further includes: a first spring seat and a limiting member; the first spring seat is disposed on the connecting rod, the elastic member is located between the first spring seat and the first mounting member, and / or between the first spring seat and the second mounting member, a portion of the elastic member is sleeved on the first spring seat, and the first spring seat is used to provide support for the end of the elastic member; the limiting member is connected to the connecting rod and is used to limit the axial movement of the first spring seat relative to the connecting rod.

[0020] Thus, the first spring seat provides support for the end of the elastic element and limits the end face of the elastic element. The limiting member is connected to the connecting rod and limits the movement of the first spring seat relative to the connecting rod, thereby limiting the axial movement of the elastic element relative to the connecting rod, so that the elastic element provides a preload force that brings the first mounting member and the second mounting member closer to each other.

[0021] In some technical solutions provided in this application, the connecting assembly further includes a second spring seat, which is disposed on the connecting rod and located between the elastic member and the first mounting member, and / or between the elastic member and the second mounting member. A portion of the elastic member is sleeved on the second spring seat, which is used to provide support for the end of the elastic member.

[0022] Thus, a portion of the elastic element is fitted onto the second spring seat, which provides support for the end of the elastic element and limits the end face of the elastic element.

[0023] In some of the technical solutions provided in this application, the connecting assembly further includes a positioning element; the positioning element is disposed between the rotating element and the first mounting element, and / or between the rotating element and the second mounting element, for limiting the axial direction of the rotating element.

[0024] Thus, the positioning element is used to limit the axial movement of the rotating element, preventing it from moving along the axis and affecting the stability of the rolling contact between the rotating element and the second connecting pipe.

[0025] In some of the technical solutions provided in this application, the connecting assembly also includes a mounting base, which is sleeved on the connecting rod and located between the rotating member and the connecting rod.

[0026] Thus, the mounting base is located between the rotating component and the connecting rod, providing structural support for the rotating component and limiting its radial movement to prevent other components from affecting its rotation.

[0027] In some technical solutions provided in this application, the first connecting pipe further includes an inner spherical joint, which is disposed in the pipe body, and the first mounting component is disposed in the inner spherical joint; the second connecting pipe includes an outer spherical joint, and the second mounting component is sleeved on the outer spherical joint; wherein, the inner spherical surface of the inner spherical joint is adapted to the outer spherical surface of the outer spherical joint.

[0028] Thus, the second mounting component is located on the outer spherical joint, allowing the first mounting component and the rotating component to move the first and second connecting pipes closer together via the spherical arc surface. The inner spherical surface of the inner spherical joint matches the outer spherical surface of the outer spherical joint, ensuring the sealing of the connection between the first and second connecting pipes.

[0029] The second aspect of this application provides an engineering vehicle that includes the pipeline device provided by any of the above-mentioned technical solutions of this application.

[0030] The engineering vehicle provided in the second aspect of this application has all the beneficial effects of the pipeline device proposed in the first aspect of this application because it includes the pipeline device.

[0031] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1One of the structural schematic diagrams of the pipeline device according to an embodiment of this application is shown;

[0034] Figure 2 A second schematic diagram of the pipeline device according to an embodiment of this application is shown;

[0035] Figure 3 The third schematic diagram of the pipeline device according to an embodiment of this application is shown;

[0036] Figure 4 The fourth schematic diagram of the pipeline device according to an embodiment of this application is shown;

[0037] Figure 5 The fifth schematic diagram of the pipeline device according to an embodiment of this application is shown.

[0038] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0039] 10 Piping assembly, 100 First connecting pipe, 110 Pipe body, 120 First mounting component, 130 Inner spherical joint, 200 Second connecting pipe, 210 Outer spherical joint, 300 Connecting assembly, 310 Second mounting component, 320 Rotating component, 330 Connecting rod, 340 Elastic component, 350 First spring seat, 360 Limiting component, 370 Second spring seat, 380 Positioning component, 390 Mounting base. Detailed Implementation

[0040] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0042] The following reference Figures 1 to 5 This application describes a pipeline device 10 and an engineering vehicle according to some embodiments.

[0043] The first aspect of this application provides a piping device 10, such as... Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the piping device 10 includes: a first connecting pipe 100, a second connecting pipe 200, and a connecting assembly 300; the second connecting pipe 200 is assembled with the first connecting pipe 100 and communicates with the first connecting pipe 100; the connecting assembly 300 is disposed on the first connecting pipe 100, and the connecting assembly 300 includes a rotating member 320, which makes rolling contact with the second connecting pipe 200 so that the first connecting pipe 100 can rotate relative to the second connecting pipe 200, and the rotating member 320 is used to restrict the second connecting pipe 200 from separating from the first connecting pipe 100.

[0044] In this embodiment, the second connecting pipe 200 is assembled with the first connecting pipe 100 and communicates with the first connecting pipe 100, allowing gas in the second connecting pipe 200 to enter the first connecting pipe 100. A connecting assembly 300 is disposed on the first connecting pipe 100, and the first connecting pipe 100 is rotatably connected to the second connecting pipe 200 via the connecting assembly 300. Exemplarily, this piping device 10 can be used in the cargo box heating system of an articulated dump truck. The first connecting pipe 100 and the second connecting pipe 200 are respectively disposed on the front and rear frames of the cargo box heating system, and the gas discharged from the heating system enters the second connecting pipe 200 through the first connecting pipe 100. When the articulated dump truck turns or tilts, the front and rear frames rotate at a angle of less than or equal to 45° in the left-right direction, causing the first connecting pipe 100 and the second connecting pipe 200 to rotate at their connection positions.

[0045] The connecting assembly 300 includes a rotating member 320, which, exemplarily, can be a roller or a ball. When the first connecting pipe 100 or the second connecting pipe 200 rotates, the rotating member 320 rolls in contact with the second connecting pipe 200, allowing the first connecting pipe 100 to rotate relative to the second connecting pipe 200. The rotating member 320 restricts the second connecting pipe 200 from separating from the first connecting pipe 100. While enabling the first connecting pipe 100 and the second connecting pipe 200 to achieve a rotatable connection, it reduces the contact area between the first connecting pipe 100 and the second connecting pipe 200, thereby significantly reducing the sliding friction between the first connecting pipe 100 and the second connecting pipe 200, making the sliding friction negligible. This allows the first connecting pipe 100 and the second connecting pipe 200 to achieve the rotation function of the connecting pipe through rolling friction. On the one hand, it reduces the friction when the first connecting pipe 100 and the second connecting pipe 200 rotate, preventing jamming during rotation. On the other hand, reducing the surface precision requirements of the first connecting pipe 100 and the second connecting pipe 200 lowers the processing and production costs of the piping device 10. Furthermore, when high-temperature gas is present inside the first connecting pipe 100 and the second connecting pipe 200, for example, when the gas temperature inside the pipe is greater than or equal to 200°C, it can still lubricate the rolling contact points of the connecting assembly 300 and the second connecting pipe 200, preventing corrosion at the rolling contact points and ensuring smooth rotation of the first connecting pipe 100 and the second connecting pipe 200.

[0046] Specifically, the number of connecting components 300 can be multiple to make the connection between the first connecting pipe 100 and the second connecting pipe 200 more stable. For example, the number of connecting components 300 is three.

[0047] Thus, the connecting component 300 is disposed on the first connecting pipe 100, and a portion of the connecting component 300 makes rolling contact with the second connecting pipe 200, so that the first connecting pipe 100 can rotate relative to the second connecting pipe 200. This reduces the frictional force when the first connecting pipe 100 and the second connecting pipe 200 rotate, lowers the surface precision requirements of the first connecting pipe 100 and the second connecting pipe 200, reduces the processing and production costs of the pipeline device 10, facilitates lubrication of the rolling contact position of the connecting component 300 and the second connecting pipe 200, and ensures smooth rotation of the first connecting pipe 100 and the second connecting pipe 200.

[0048] In some embodiments provided in this application, such as Figure 2 and Figure 5As shown, optionally, the first connecting pipe 100 includes: a pipe body 110 and a first mounting member 120. The first mounting member 120 is disposed on the pipe body 110 and connected to the connecting assembly 300. The connecting assembly 300 includes a second mounting member 310. The second mounting member 310 is connected to the first mounting member 120 and is sleeved on the second connecting pipe 200. A rotating member 320 is located between the first mounting member 120 and the second mounting member 310 and is in rolling contact with the second connecting pipe 200.

[0049] In this embodiment, the first connecting pipe 100 includes a pipe body 110 and a first mounting member 120. The first mounting member 120 is disposed on the pipe body 110 and is connected to the connecting assembly 300, so that the first connecting pipe 100 is connected to the connecting assembly 300 through the first mounting member 120. For example, the first mounting member 120 may be a flange.

[0050] The connecting assembly 300 includes a second mounting member 310, which, exemplarily, may be a flange. The second mounting member 310 is connected to the first mounting member 120 and is sleeved on the second connecting pipe 200. A rotating member 320 is located between the first mounting member 120 and the second mounting member 310 and is rotatable within the space defined by the first mounting member 120 and the second mounting member 310. Exemplarily, the second mounting member 310 or the first mounting member 120 may include a mounting rod, and the rotating member 320 is sleeved on the mounting rod. The rotating member 320 makes rolling contact with the second connecting pipe 200. When the first connecting pipe 100 or the second connecting pipe 200 rotates, the rotating assembly makes rolling contact with the second connecting pipe 200 through the rotating member 320.

[0051] Thus, the first connecting pipe 100 is connected to the connecting assembly 300 through the first mounting member 120, the rotating member 320 can rotate within the space defined by the first mounting member 120 and the second mounting member 310, and the connecting assembly 300 makes rolling contact with the second connecting pipe 200 through the rotating member 320.

[0052] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5 As shown, optionally, the connecting assembly 300 further includes a connecting rod 330, which is connected to the first mounting member 120 and the second mounting member 310. A rotating member 320 is sleeved on the connecting rod 330 so that the rotating member 320 can rotate around the axis of the connecting rod 330.

[0053] In this embodiment, the connecting assembly 300 further includes a connecting rod 330, which is connected to the first mounting member 120 and the second mounting member 310, so that the first mounting member 120 and the second mounting member 310 are connected by the connecting rod 330.

[0054] In one possible embodiment, one of the first mounting member 120 and the second mounting member 310 is provided with a through hole and the other is provided with a threaded hole. The connecting rod 330 is a stud, which passes through the through hole and is engaged in the threaded hole.

[0055] In one possible embodiment, one of the first mounting member 120 and the second mounting member 310 is provided with a through hole, and the connecting rod 330 passes through the through hole. The end face of the other of the first mounting member 120 and the second mounting member 310 is connected to one end of the connecting rod 330. Exemplarily, the connecting rod 330 can be welded to the end face of the other of the first mounting member 120 and the second mounting member 310.

[0056] The rotating member 320 is sleeved on the connecting rod 330 so that the rotating member 320 can rotate around the axis of the connecting rod 330. When the first connecting pipe 100 or the second connecting pipe 200 rotates, the rotating member 320 can rotate around the axis of the connecting rod 330 and roll into contact with the second connecting pipe 200.

[0057] Thus, the first mounting component 120 and the second mounting component 310 are connected by the connecting rod 330, and the rotating component 320 can rotate around the axis of the connecting rod 330 and roll into contact with the second connecting pipe 200.

[0058] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5 As shown, the connecting assembly 300 also includes an elastic element 340; the elastic element 340 is disposed on a first side of the first mounting member 120 and / or on a first side of the second mounting member 310, the first side of the first mounting member 120 being the side of the first mounting member 120 facing away from the second mounting member 310, and the first side of the second mounting member 310 being the side of the second mounting member 310 facing away from the first mounting member 120; wherein, the elastic element 340 is used to provide a pre-tightening force to bring the first mounting member 120 and the second mounting member 310 closer together, so that the first mounting member 120 and the rotating member 320 drive the first connecting pipe 100 and the second connecting pipe 200 to come closer together.

[0059] In this embodiment, the connecting assembly 300 further includes an elastic element 340, which, exemplarily, may be a spring. The elastic element 340 is disposed on a first side of the first mounting member 120 and / or on a first side of the second mounting member 310. The first side of the first mounting member 120 is the side of the first mounting member 120 that faces away from the second mounting member 310, and the first side of the second mounting member 310 is the side of the second mounting member 310 that faces away from the first mounting member 120. That is, the elastic element 340 may be located above the first mounting member 120 or below the second mounting member 310.

[0060] It is understood that the deformable elastic element 340 can provide a preload force that brings the first mounting element 120 and the second mounting element 310 closer together. Since the rotating element 320 is in rolling contact with the second connecting pipe 200, the first mounting element 120 and the rotating element 320 drive the first connecting pipe 100 and the second connecting pipe 200 to come closer together, so that the first connecting pipe 100 and the second connecting pipe 200 are tightly fitted together, ensuring the connection and sealing of the first connecting pipe 100 and the second connecting pipe 200.

[0061] It should be noted that under special circumstances, the first connecting pipe 100 or the second connecting pipe 200 of the pipeline device 10 may rotate beyond the preset range or be displaced along the axial direction of the second connecting pipe 200. In this case, the elastic element 340 can increase the elastic deformation and absorb the stress generated by the pipeline device 10 under extreme working conditions, so as to avoid damage to other components of the pipeline device 10.

[0062] Thus, the connecting assembly 300 also includes an elastic element 340, which allows the first connecting tube 100 and the second connecting tube 200 to fit together tightly, ensuring the sealing of the connection between the first connecting tube 100 and the second connecting tube 200.

[0063] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5 As shown, the connecting assembly 300 further includes: a first spring seat 350 and a limiting member 360; the first spring seat 350 is disposed on the connecting rod 330, the elastic member 340 is located between the first spring seat 350 and the first mounting member 120, and / or between the first spring seat 350 and the second mounting member 310, a portion of the elastic member 340 is sleeved on the first spring seat 350, and the first spring seat 350 is used to provide support for the end of the elastic member 340; the limiting member 360 is connected to the connecting rod 330 and is used to limit the axial movement of the first spring seat 350 relative to the connecting rod 330.

[0064] In this embodiment, the connecting assembly 300 further includes a first spring seat 350 and a limiting member 360; the first spring seat 350 is disposed on the connecting rod 330, and the elastic member 340 is located between the first spring seat 350 and the first mounting member 120, and / or between the first spring seat 350 and the second mounting member 310. When the elastic member 340 is located on the first side of the first mounting member 120, the elastic member 340 is located between the first spring seat 350 and the first mounting member 120; when the elastic member 340 is located on the first side of the second mounting member 310, the elastic member 340 is located between the first spring seat 350 and the second mounting member 310, that is, the first spring seat 350 is located at the end of the elastic member 340 away from the first mounting member 120 and the second mounting member 310.

[0065] A portion of the elastic element 340 is fitted onto the first spring seat 350, which provides support for the end of the elastic element 340 and limits the end of the elastic element 340 in the radial direction of the second connecting pipe 200. Because the first spring seat 350 increases the cross-sectional area of ​​the end face of the elastic element 340, the end of the elastic element 340 can be limited in the axial direction of the second connecting pipe 200 via the first spring seat 350.

[0066] The limiting member 360 is connected to the connecting rod 330 to restrict the movement of the first spring seat 350 relative to the connecting rod 330, thereby restricting the movement of the elastic member 340 relative to the connecting rod 330, so that the elastic member 340 remains in a deformed state to provide a preload force that approaches the first mounting member 120 and the second mounting member 310. Exemplarily, the connecting rod 330 can be a stud, the limiting member 360 can be a nut fitted onto the connecting rod 330, or the limiting member 360 can be an integral structure with the spring seat, as long as the connection between the limiting member 360 and the connecting rod 330 can be achieved. This application embodiment does not limit this aspect.

[0067] Thus, the first spring seat 350 provides support for the end of the elastic member 340 and limits the end face of the elastic member 340. The limiting member 360 is connected to the connecting rod 330 and limits the movement of the first spring seat 350 relative to the connecting rod 330, thereby limiting the axial movement of the elastic member 340 relative to the connecting rod 330, so that the elastic member 340 provides a preload force that brings the first mounting member 120 and the second mounting member 310 closer to each other.

[0068] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5As shown, the connecting assembly 300 also includes a second spring seat 370, which is disposed on the connecting rod 330. The second spring seat 370 is located between the elastic member 340 and the first mounting member 120, and / or between the elastic member 340 and the second mounting member 310. A portion of the elastic member 340 is sleeved on the second spring seat 370, which provides support for the end of the elastic member 340.

[0069] In this embodiment, the connecting assembly 300 further includes a second spring seat 370, which is disposed on the connecting rod 330. The second spring seat 370 is located between the elastic member 340 and the first mounting member 120, and / or between the elastic member 340 and the second mounting member 310. When the elastic member 340 is located on the first side of the first mounting member 120, the second spring seat 370 is located between the elastic member 340 and the first mounting member 120; when the elastic member 340 is located on the first side of the second mounting member 310, the second spring seat 370 is located between the elastic member 340 and the second mounting member 310, that is, the first spring seat 350 is located at the end of the elastic member 340 that is close to the first mounting member 120 and the second mounting member 310.

[0070] A portion of the elastic element 340 is sleeved on the second spring seat 370, which provides support for the end of the elastic element 340 and limits the end of the elastic element 340 in the radial direction of the second connecting pipe 200. Because the second spring seat 370 increases the cross-sectional area of ​​the end face of the elastic element 340, the end of the elastic element 340 can be limited in the axial direction of the second connecting pipe 200 via the second spring seat 370.

[0071] Thus, a portion of the elastic member 340 is fitted onto the second spring seat 370, which provides support for the end of the elastic member 340 and limits the end face of the elastic member 340.

[0072] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5 As shown, the connecting assembly 300 also includes a positioning member 380; the positioning member 380 is disposed between the rotating member 320 and the first mounting member 120, and / or between the rotating member 320 and the second mounting member 310, for limiting the axial movement of the rotating member 320.

[0073] In this embodiment, the connecting assembly 300 further includes a positioning member 380; the positioning member 380 is disposed between the rotating member 320 and the first mounting member 120, and / or between the rotating member 320 and the second mounting member 310, for limiting the axial movement of the rotating member 320, so as to prevent the rotating member 320 from moving along the axis and affecting the stability of the rolling contact between the rotating member 320 and the second connecting pipe 200.

[0074] Thus, the positioning member 380 is used to limit the axial movement of the rotating member 320, preventing the rotating member 320 from moving along the axis and affecting the stability of the rolling contact between the rotating member 320 and the second connecting pipe 200.

[0075] In some embodiments provided in this application, such as Figure 2 , Figure 4 and Figure 5 As shown, the connecting assembly 300 also includes a mounting base 390, which is sleeved on the connecting rod 330 and is located between the rotating member 320 and the connecting rod 330.

[0076] In this embodiment, the connecting assembly 300 further includes a mounting base 390, which is sleeved on the connecting rod 330. The rotating member 320 is sleeved on the mounting base 390. Therefore, the mounting base 390 is located between the rotating member 320 and the connecting rod 330. The mounting base 390 provides structural support for the rotating member 320 and limits the radial movement of the rotating member 320. The mounting base 390 includes a seat body and a baffle plate. The baffle plate is connected to the seat body, and the rotating member 320 is connected to the seat body. The rotating member 320 can rotate relative to the seat body, and a gap is provided between the baffle plate and the rotating member 320.

[0077] In one possible embodiment, when a positioning member 380 is sleeved on the connecting rod 330, a baffle is located between the positioning member 380 and the seat, and the baffle restricts the positioning member 380 from contacting the rotating member 320, so as to prevent the positioning member 380 from restricting the rotation of the rotating member 320.

[0078] In one possible embodiment, the baffle is fitted with the first mounting member 120, and the baffle restricts the first mounting member 120 from contacting the rotating member 320, thereby preventing the first mounting member 120 from restricting the rotation of the rotating member 320.

[0079] In one possible embodiment, the baffle is fitted with the second mounting member 310, and the baffle restricts the second mounting member 310 from contacting the rotating member 320, thereby preventing the second mounting member 310 from restricting the rotation of the rotating member 320.

[0080] Thus, the mounting base 390 is located between the rotating member 320 and the connecting rod 330, providing structural support for the rotating member 320 and limiting the radial direction of the rotating member 320 to prevent other components from affecting the rotation of the rotating member 320.

[0081] In some embodiments provided in this application, such as Figure 3 and Figure 4As shown, the first connecting pipe 100 further includes an inner spherical connector 130, which is disposed on the pipe body 110, and the first mounting member 120 is disposed on the inner spherical connector 130; the second connecting pipe 200 includes an outer spherical connector 210, and the second mounting member 310 is sleeved on the outer spherical connector 210; wherein, the inner spherical surface of the inner spherical connector 130 is adapted to the outer spherical surface of the outer spherical connector 210.

[0082] In this embodiment, the first connecting pipe 100 further includes an inner spherical connector 130, which is disposed on the pipe body 110, and a first mounting member 120 is disposed on the inner spherical connector 130; the second connecting pipe 200 includes an outer spherical connector 210, and a second mounting member 310 is sleeved on the outer spherical connector 210. Both the inner spherical connector 130 and the outer spherical connector 210 are hollow structures, allowing the first connecting pipe 100 and the second connecting pipe 200 to communicate through the inner spherical connector 130 and the outer spherical connector 210. Furthermore, since the outer surface of the outer spherical connector 210 is a spherical arc surface, the first mounting member 120 and the rotating member 320 can pass through this spherical arc surface, causing the first connecting pipe 100 and the second connecting pipe 200 to come closer together.

[0083] The inner spherical surface of the inner spherical connector 130 is adapted to the outer spherical surface of the outer spherical connector 210 to ensure the sealing of the connection position between the first connecting pipe 100 and the second connecting pipe 200.

[0084] Thus, the second mounting component 310 is located on the outer spherical joint 210, allowing the first mounting component 120 and the rotating component 320 to move the first connecting pipe 100 and the second connecting pipe 200 closer together via the spherical arc surface. The inner spherical surface of the inner spherical joint 130 is adapted to the outer spherical surface of the outer spherical joint 210, ensuring the sealing of the connection position between the first connecting pipe 100 and the second connecting pipe 200.

[0085] A second aspect of this application provides an engineering vehicle that includes the pipeline device 10 provided in any of the above embodiments of this application.

[0086] It should be noted that the engineering vehicle includes the pipeline device 10 provided in any of the above embodiments of this application, and therefore has all the beneficial technical effects of the pipeline device 10. To avoid repetition, these effects will not be described in detail here.

[0087] In the claims, description, and accompanying drawings of this application, the term "plural" refers to two or more objects. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and simplifying the descriptive process, and are not intended to indicate or imply that the device or element referred to must have the described specific orientation, or be constructed and operated in a specific orientation. Therefore, these descriptions should not be construed as limitations on this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects or an indirect connection between multiple objects through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood based on the specific circumstances described above.

[0088] In the claims, description, and accompanying drawings of this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In the claims, description, and accompanying drawings of this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plumbing device, characterized by, The utility model relates to a pipe device, including: A first connecting pipe; A second connecting pipe, which is assembled with the first connecting pipe and communicates with the first connecting pipe; A connecting assembly is arranged on the first connecting pipe, the connecting assembly includes a rotating piece, the rotating piece is in rolling contact with the second connecting pipe, so that the first connecting pipe can rotate relative to the second connecting pipe, and the rotating piece is used for limiting the second connecting pipe from separating from the first connecting pipe; The first connecting pipe includes: A pipe body and a first mounting piece, the first mounting piece is arranged on the pipe body, and the first mounting piece is connected with the connecting assembly; The connecting assembly includes: A second mounting piece, which is connected with the first mounting piece, the second mounting piece is sleeved on the second connecting pipe, the rotating piece is located between the first mounting piece and the second mounting piece, and the rotating piece is in rolling contact with the second connecting pipe; The connecting assembly further includes: A connecting rod, which is connected with the first mounting piece and the second mounting piece, and the rotating piece is sleeved on the connecting rod, so that the rotating piece can rotate around the axis of the connecting rod.

2. The plumbing device of claim 1, wherein, The connecting assembly further includes: A resilient piece arranged on the first side of the first mounting piece and / or the first side of the second mounting piece, the first side of the first mounting piece being the side of the first mounting piece away from the second mounting piece, and the first side of the second mounting piece being the side of the second mounting piece away from the first mounting piece; Wherein, the resilient piece is used for providing the first mounting piece and the second mounting piece with a pre-tightening force for approaching each other, so that the first mounting piece and the rotating piece drive the first connecting pipe and the second connecting pipe to approach each other.

3. The plumbing device of claim 2, wherein, The connecting assembly further includes: A first spring seat arranged on the connecting rod, the resilient piece being located between the first spring seat and the first mounting piece and / or between the first spring seat and the second mounting piece, a part of the resilient piece being sleeved on the first spring seat, and the first spring seat being used for supporting the end of the resilient piece; A limiting piece connected with the connecting rod and used for limiting the axial movement of the first spring seat relative to the connecting rod.

4. The plumbing device of claim 2, wherein, The connecting assembly further includes: A second spring seat arranged on the connecting rod, the second spring seat being located between the resilient piece and the first mounting piece and / or between the resilient piece and the second mounting piece, a part of the resilient piece being sleeved on the second spring seat, and the second spring seat being used for supporting the end of the resilient piece.

5. The plumbing device according to any one of claims 1 to 4, characterized in that The connecting assembly further includes: A positioning piece arranged between the rotating piece and the first mounting piece and / or between the rotating piece and the second mounting piece and used for limiting the axial movement of the rotating piece.

6. The plumbing device according to any one of claims 1 to 4, characterized in that The connecting assembly further includes: A mounting seat sleeved on the connecting rod, the mounting seat being arranged between the rotating piece and the connecting rod.

7. The pipe device according to any one of claims 1 to 4, wherein The first connecting pipe further includes an inner spherical joint, the inner spherical joint is arranged on the pipe body, and the first mounting piece is arranged on the inner spherical joint; The second connecting pipe comprises an outer spherical joint, and the second mounting member is sleeved on the outer spherical joint; The inner spherical surface of the inner spherical joint is matched with the outer spherical surface of the outer spherical joint.

8. An engineering vehicle characterized by, The engineering vehicle comprises: The pipe arrangement according to any one of claims 1 to 7.

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