Connecting device and pipeline assembly

Abstract

The utility model discloses a connecting device and a pipeline assembly, and belongs to the technical field of engine testing, the connecting device comprises a first pipe fitting and a second pipe fitting, the first pipe fitting is provided with a first containing cavity, the first containing cavity extends in the axial direction, and the first containing cavity penetrates through the first pipe fitting in the axial direction; a part of the second pipe fitting is arranged in the first containing cavity, the second pipe fitting is connected with the first pipe fitting, the second pipe fitting is provided with a second containing cavity, the second containing cavity penetrates through the second pipe fitting in the axial direction, and the first containing cavity communicates with the second containing cavity; the second pipe fitting can move in the axial direction relative to the first pipe fitting so as to change the maximum distance between the first pipe fitting and the second pipe fitting in the axial direction. By arranging the first pipe fitting and the second pipe fitting which are arranged in a sleeving mode, the length of the connecting device can be changed, so that the length of the pipeline assembly is changed, and the connecting device adapts to engines of various different models.

Description

Technical Field

[0001] This application belongs to the technical field of engine testing, and particularly relates to a connecting device and a pipeline assembly. Background Art

[0002] When conducting a bench test on an engine, pipelines are required to connect the inlets and outlets on the engine to functional equipment to achieve the supply and discharge of fluids.

[0003] When it is necessary to change the engine model, the positions of the inlets and outlets on the engine will change. Correspondingly, the pipelines need to be modified so that they can match the positions of the inlets and outlets on the engine.

[0004] However, there are many and dense pipelines around the engine, making the modification difficult. Summary of the Utility Model

[0005] Utility Model Objectives: This application provides a connecting device to solve the technical problem of difficult pipeline modification; another objective of this application is to provide a pipeline assembly.

[0006] Technical Solution: This application provides a connecting device, including:

[0007] A first pipe fitting, the first pipe fitting has a first accommodation cavity, the first accommodation cavity extends along the axial direction, and the first accommodation cavity penetrates through the first pipe fitting along the axial direction;

[0008] A second pipe fitting, a part of the second pipe fitting is disposed in the first accommodation cavity, the second pipe fitting is connected to the first pipe fitting, the second pipe fitting has a second accommodation cavity, the second accommodation cavity penetrates through the second pipe fitting along the axial direction, and the first accommodation cavity and the second accommodation cavity are communicated;

[0009] The second pipe fitting can move relative to the first pipe fitting along the axial direction to change the maximum distance along the axial direction between the first pipe fitting and the second pipe fitting.

[0010] In some embodiments, the first pipe fitting has a first inner wall, and the first inner wall encloses the first accommodation cavity; the first pipe fitting has a guiding groove, the guiding groove is disposed on the first inner wall, the guiding groove is communicated with the first accommodation cavity, the guiding groove extends along the axial direction, the guiding groove has a bottom wall, a first groove wall and a second groove wall, and the bottom wall is located between the first groove wall and the second groove wall along the axial direction and is respectively connected to the first groove wall and the second groove wall;

[0011] The second pipe fitting includes a body portion and a protrusion portion. A part of the body portion is disposed through the first accommodation cavity and is connected to the first inner wall. The protrusion portion is connected to the body portion. The protrusion portion is disposed between the body portion and the bottom wall. The first groove wall and the second groove wall are configured to limit the position of the protrusion portion in the axial direction.

[0012] In some embodiments, the connecting device further includes a limiting assembly, and the limiting assembly includes:

[0013] A first connecting member having a first connection hole, and the first pipe fitting is connected and disposed through the first connection hole;

[0014] A second connecting member having a second connection hole, and a part of the second pipe fitting exposed outside the first accommodation cavity is connected and disposed through the second connection hole;

[0015] An adjusting assembly connecting the first connecting member and the second connecting member, and the adjusting assembly is configured to change the maximum distance between the first connecting member and the second connecting member in the axial direction, so as to change the maximum distance between the first pipe fitting and the second pipe fitting in the axial direction.

[0016] In some embodiments, the first pipe fitting has a receiving groove communicating with the first accommodation cavity; the connecting device further includes a sealing member embedded in the receiving groove, and the sealing member is located between the first pipe fitting and the second pipe fitting and is sealingly connected to the first pipe fitting and the second pipe fitting.

[0017] In some embodiments, the first pipe fitting has a plurality of the receiving grooves, and the plurality of receiving grooves are spaced apart in the axial direction; the connecting device includes a plurality of the sealing members embedded in the plurality of receiving grooves, so that at least one of the sealing members is disposed in the plurality of receiving grooves.

[0018] In some embodiments, the first pipe fitting includes a first part and a second part connected in a first direction. The first part is disposed through the first connection hole, and the second part is connected to the second pipe fitting. The maximum dimension of the first part in a direction perpendicular to the axial direction is smaller than the maximum dimension of the second part in a direction perpendicular to the axial direction.

[0019] Correspondingly, the present application further provides a pipeline assembly, including:

[0020] A first connection section extending in a first direction, the first connection section including a first connection end and a second connection end in the first direction. The first connection end is configured to connect to an engine, and the second connection end is configured to connect to a functional device;

[0021] At least one connecting device as described in any one of the above embodiments, at least one of the connecting devices extends along the first direction, and one of the first pipe fitting and the second pipe fitting of the connecting device is connected and communicated with the first connection end along the first direction, and the connecting device is used to change the position of the first connection end relative to the engine.

[0022] In some embodiments, it further includes:

[0023] A second connection section, the second connection section extends along a second direction, the first direction intersects with the second direction, the second connection section includes a third connection end and a fourth connection end along the second direction, the third connection end is connected to the second connection end, and the fourth connection end is used to connect the functional device;

[0024] At least one of the connecting devices extending along the second direction, and one of the first pipe fitting and the second pipe fitting of the connecting device is connected and communicated with the fourth connection end along the second direction.

[0025] In some embodiments, at least one of the connecting devices extends along a third direction, the first direction, the second direction and the third direction intersect with each other, and the connecting device is located between the second connection end and the third connection end, and one of the first pipe fitting and the second pipe fitting of the connecting device is connected to the second connection end, and the other is connected to the third connection end.

[0026] In some embodiments, the pipe assembly further includes a third connection section, the third connection section is located between the connecting device and the second connection end along the third direction, and respectively connects the second connection end and the connecting device; and / or,

[0027] The pipe assembly further includes a third connection section, the third connection section is located between the connecting device and the third connection end along the third direction, and respectively connects the third connection end and the connecting device.

[0028] In some embodiments, the pipe assembly further includes a first bracket, the first bracket connects the first connection section along the first direction, and the first bracket is used to support the first connection section.

[0029] In some embodiments, the pipe assembly further includes a second bracket, the second bracket includes a moving part and a fixing part connected along the first direction, the moving part has a moving hole, the second connection section or the third connection section passes through the moving hole and can move relative to the moving part, and the fixing part is used to fix the second bracket.

[0030] Beneficial effects: Compared with the prior art, the connecting device provided by the embodiment of the present application includes a first pipe fitting and a second pipe fitting. The first pipe fitting has a first accommodation cavity that extends in the axial direction and penetrates the first pipe fitting along the axial direction; a part of the second pipe fitting is disposed in the first accommodation cavity, the second pipe fitting is connected to the first pipe fitting, the second pipe fitting has a second accommodation cavity that penetrates the second pipe fitting along the axial direction, and the first accommodation cavity and the second accommodation cavity are communicated; the second pipe fitting can move relative to the first pipe fitting along the axial direction to change the maximum distance along the axial direction between the first pipe fitting and the second pipe fitting. By providing the mutually sleeved first pipe fitting and second pipe fitting, the length of the connecting device can be changed to change the length of the pipeline assembly and adapt to engines of various different models.

[0031] Correspondingly, the present application further provides a pipeline assembly, including a first connection section and a connecting device. The first connection section extends in a first direction. The first connection section includes a first connection end and a second connection end along the first direction. The first connection end is used to connect to an engine, and the second connection end is used to connect to a functional device; at least one connecting device extends in the first direction, and one of the first pipe fitting and the second pipe fitting of the connecting device is connected and communicated with the first connection end along the first direction, and the connecting device is used to change the position of the first connection end relative to the engine. By providing a connecting device between the first connection section and the engine, the first connection section and the engine can be connected. Description of the Drawings

[0032] The following will, by way of a detailed description of the specific embodiments of the present application in conjunction with the drawings, make the technical solutions and other beneficial effects of the present application obvious.

[0033] Figure 1 It is a schematic structural diagram of the connecting device provided by the embodiment of the present application;

[0034] Figure 2 It is a cross-sectional view of the connecting device provided by the embodiment of the present application;

[0035] Figure 3 For Figure 2 the detailed view of the circled area A in

[0036] Figure 4 It is a schematic structural diagram of the pipeline assembly provided by the embodiment of the present application;

[0037] Figure 5 For Figure 4 the detailed view of the circled area B in

[0038] Reference numerals: 100 - connecting device, 110 - first pipe fitting, 111 - first receiving cavity, 112 - first inner wall, 113 - guiding groove, 1131 - bottom wall, 1132 - first groove wall, 1133 - second groove wall, 114 - receiving groove, 115 - first part, 116 - second part, 120 - second pipe fitting, 121 - second receiving cavity, 122 - body part, 123 - protruding part, 130 - limiting component, 131 - first connecting piece, 1311 - first connection hole, 132 - second connecting piece, 1321 - second connection hole, 133 - adjusting component, 1331 - stud, 1332 - nut, 140 - seal, 200 - first connection section, 210 - first connection end, 220 - second connection end, 300 - second connection section, 310 - third connection end, 320 - fourth connection end, 400 - third connection section, 500 - first bracket, 600 - second bracket, 610 - moving part, 611 - moving hole, 620 - fixing part, 700 - shock-absorbing joint. Detailed implementation manners

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0040] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. In the description of the present application, "a plurality of" means two or more, unless otherwise clearly and specifically limited. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more such features.

[0041] It should also be noted that in the drawings of the embodiments of the present application, the arrows marked with X, Y, and Z respectively represent the axial direction X, the second direction Y, and the third direction Z. The description of the present application introduces the axial direction X, the second direction Y, and the third direction Z to more clearly express the relative position relationships involved in the present application. Among them, the axial direction X, the second direction Y, and the third direction Z are three relative directions intersecting each other, rather than absolute orientations. In practical applications, the axial direction X, the second direction Y, and the third direction Z can point to any orientation in space as long as their intersecting relationship is maintained.

[0042] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application.

[0043] When conducting a bench test on an engine, pipes are needed to connect the inlets and outlets on the engine to functional devices to achieve the supply and discharge of fluids.

[0044] When it is necessary to change the engine model, the positions of the inlets and outlets on the engine will change. Correspondingly, the pipes need to be modified so that the pipes can match the positions of the inlets and outlets on the engine.

[0045] However, there are many and dense pipes around the engine, making the modification difficult.

[0046] To solve the technical problem of the difficult pipe modification, the first embodiment of the present application provides a connecting device 100. The connecting device 100 is used to connect the relative positions between the engine and the pipe assembly. Please refer to Figure 1 , the connecting device 100 includes a first pipe fitting 110 and a second pipe fitting 120. The first pipe fitting 110 has a first receiving cavity 111. The first receiving cavity 111 extends along the axial direction O, and the first receiving cavity 111 penetrates through the first pipe fitting 110 along the axial direction O. A part of the second pipe fitting 120 is disposed in the first receiving cavity 111. The second pipe fitting 120 is connected to the first pipe fitting 110. The second pipe fitting 120 has a second receiving cavity 121. The second receiving cavity 121 penetrates through the second pipe fitting 120 along the axial direction O. The first receiving cavity 111 and the second receiving cavity 121 are communicated. The second pipe fitting 120 can move relative to the first pipe fitting 110 along the axial direction O to change the maximum distance along the axial direction O between the first pipe fitting 110 and the second pipe fitting 120. Among them, the axial direction O is the direction where the O arrow is located in the drawing.

[0047] In some embodiments, the second receiving cavity 121 also extends along the axial direction O to reduce the pressure loss of the fluid flowing through the second receiving cavity 121.

[0048] Specifically, along the axial direction O, the first pipe fitting 110 has a first end face and a second end face facing away from each other. The first receiving cavity 111 penetrates through the first end face and the second end face. The minimum distance between the first end face and the second pipe fitting 120 is greater than the minimum distance between the second end face and the second pipe fitting 120. Along the axial direction O, the second pipe fitting 120 has a third end face and a fourth end face facing away from each other. The second receiving cavity 121 penetrates through the third end face and the fourth end face. The minimum distance between the third end face and the first pipe fitting 110 is less than the minimum distance between the fourth end face and the first pipe fitting 110. The dimensions of the first end face and the fourth end face along the axial direction O are the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O.

[0049] It can be understood that the outer wall of the second pipe fitting 120 is connected to the inner wall of the first pipe fitting 110, and the inner wall of the first pipe fitting 110 encloses the first receiving cavity 111 extending along the axial direction O. That is, the inner wall of the first pipe fitting 110 plays a guiding role in the movement of the second pipe fitting 120, and the second pipe fitting 120 can only move along the axial direction O. And through the movement of the second pipe fitting 120, the dimension of the connecting device 100 along the axial direction O will change accordingly.

[0050] In the above embodiment, by providing the first pipe fitting 110 and the second pipe fitting 120 that can move relative to each other along the axial direction O, the length of the connecting device 100 along the axial direction O is adjustable. After the distance between the engine and the pipeline assembly changes, by relatively moving the first pipe fitting 110 and the second pipe fitting 120, the dimension of the connecting device 100 is changed to change the length of the pipeline assembly, avoiding the modification of the pipeline assembly due to the change of the engine model.

[0051] In some embodiments, please refer to Figure 2 and Figure 3 , the first pipe fitting 110 has a first inner wall 112, and the first inner wall 112 encloses the first receiving cavity 111; the first pipe fitting 110 has a guiding groove 113, the guiding groove 113 is arranged on the first inner wall 112, the guiding groove 113 is communicated with the first receiving cavity 111, the guiding groove 113 extends along the axial direction O, the guiding groove 113 has a bottom wall 1131, a first groove wall 1132 and a second groove wall 1133, the bottom wall 1131 is located between the first groove wall 1132 and the second groove wall 1133 along the axial direction O and is respectively connected to the first groove wall 1132 and the second groove wall 1133; the second pipe fitting 120 includes a body portion 122 and a protruding portion 123, a part of the body portion 122 is inserted into the first receiving cavity 111 and is connected to the first inner wall 112, the protruding portion 123 is connected to the body portion 122, the protruding portion 123 is arranged between the body portion 122 and the bottom wall 1131, and the first groove wall 1132 and the second groove wall 1133 are used for limiting the protruding portion 123 along the axial direction O.

[0052] In some embodiments, the guiding groove 113 is an annular groove extending along the circumferential direction of the first pipe fitting 110; in other embodiments, the first pipe fitting 110 has a plurality of guiding grooves 113, and the plurality of guiding grooves 113 are arranged at intervals along the circumferential direction of the first pipe fitting 110.

[0053] Specifically, when the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 in the axial direction O is the largest, the convex portion 123 is in contact with the second groove wall 1133; when the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 in the axial direction O is the smallest, the convex portion 123 is in contact with the first groove wall 1132.

[0054] In some embodiments, please refer to again Figure 3 , the second groove wall 1133 is arranged obliquely to the direction perpendicular to the axial direction O, so that after the first pipe fitting 110 receives a sufficiently large force, the convex portion 123 can move out of the guiding groove 113 along the inclined direction of the second groove wall 1133, realizing the separation of the first pipe fitting 110 and the second pipe fitting 120, which is convenient for disassembly and maintenance.

[0055] In the above embodiments, by providing the guiding groove 113, the movement of the second pipe fitting 120 relative to the first pipe fitting 110 is guided in the axial direction O. In addition, the first groove wall 1132 and the second groove wall 1133 can also limit the extreme positions of the second pipe fitting 120 to prevent the first pipe fitting 110 and the second pipe fitting 120 from separating when adjusting the positions of the first pipe fitting 110 and the second pipe fitting 120, reducing the difficulty of using the connecting device 100. In addition, the obliquely arranged second groove wall 1133 can also play a role in guiding the separation of the first pipe fitting 110 and the second pipe fitting 120. When it is necessary to separate the first pipe fitting 110 and the second pipe fitting 120, only when the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 in the axial direction O is the largest, continuously increase the acting force that makes the first pipe fitting 110 and the second pipe fitting 120 move away from each other in the axial direction O, and then, under the guidance of the second groove wall 1133, the convex portion 123 can be disengaged from the guiding groove 113, and the limit of the first pipe fitting 110 on the second pipe fitting 120 in the axial direction O can be released, so that the first pipe fitting 110 and the second pipe fitting 120 can be separated.

[0056] In some embodiments, please refer to again Figure 1 and Figure 2, the connecting device 100 further includes a limiting component 130. The limiting component 130 includes a first connecting piece 131, a second connecting piece 132, and an adjusting component 133. The first connecting piece 131 has a first connecting hole 1311, and the first pipe fitting 110 is connected to and passes through the first connecting hole 1311; the second connecting piece 132 has a second connecting hole 1321, and the part of the second pipe fitting 120 exposed outside the first accommodating cavity 111 is connected to and passes through the second connecting hole 1321; the adjusting component 133 connects the first connecting piece 131 and the second connecting piece 132, and the adjusting component 133 is used to change the maximum distance between the first connecting piece 131 and the second connecting piece 132 along the axial direction O, so as to change the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O.

[0057] In some embodiments, both the first connecting piece 131 and the second connecting piece 132 are flange-shaped connecting plates. The adjusting component 133 includes a stud 1331 that passes through both the first connecting piece 131 and the second connecting piece 132 at the same time, and a plurality of nuts 1332 sleeved on the stud 1331. At least two of the plurality of nuts 1332 are respectively connected to the first connecting piece 131 and the second connecting piece 132, and are both located between the first connecting piece 131 and the second connecting piece 132 along the axial direction O, so as to prevent the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O from decreasing. By rotating these two nuts 1332, it can also be used to increase the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O; at least two of the plurality of nuts 1332 are respectively connected to the first connecting piece 131 and the second connecting piece 132, and are both located on one side of one of the first connecting piece 131 and the second connecting piece 132 away from the other, so as to prevent the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O from increasing. By rotating these two nuts 1332, it can also be used to decrease the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O.

[0058] It can be understood that the first connecting piece 131 and the second connecting piece 132 are not only used to connect the adjusting component 133 to the first pipe fitting 110 and the second pipe fitting 120 respectively. The first connecting piece 131 and the second connecting piece 132 in the shape of flange-shaped connecting plates can also be used to connect the connecting device 100 to the pipeline assembly or the engine. In some embodiments, the pipeline assembly also has flange-shaped connecting pieces. The bolts and nuts 1332 in the adjusting component 133 are not only used to adjust the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the axial direction O, but also used to connect the first connecting piece 131 or the second connecting piece 132 in the connecting device 100 to the flange-shaped connecting piece in the pipeline assembly, and are also used to connect the first connecting piece 131 or the second connecting piece 132 in the connecting device 100 to the engine.

[0059] In the above embodiments, by providing the adjusting assembly 133 to further limit the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 in the axial direction O, relative movement between the first pipe fitting 110 and the second pipe fitting 120 is avoided, ensuring the reliability of the connection device 100 during use. In addition, the threaded connection between the nut 1332 and the stud 1331 also serves to save effort. By relatively rotating the nut 1332 and the stud 1331, the first pipe fitting 110 and the second pipe fitting 120 can be relatively moved, reducing the difficulty of using the connection device 100.

[0060] In some embodiments, referring again to Figure 2 and Figure 3 , the first pipe fitting 110 has a receiving groove 114, and the receiving groove 114 communicates with the first receiving cavity 111; the connection device 100 further includes a sealing member 140, and the sealing member 140 is embedded in the receiving groove 114. The sealing member 140 is located between the first pipe fitting 110 and the second pipe fitting 120 and seals the connection between the first pipe fitting 110 and the second pipe fitting 120.

[0061] In some embodiments, the sealing member 140 surrounds the outer wall of the second pipe fitting 120 for one full turn.

[0062] In the above embodiments, by providing the sealing member 140, leakage between the first pipe fitting 110 and the second pipe fitting 120 is avoided, enhancing the reliability of the connection device 100 during use. By providing the receiving groove 114, relative movement of the sealing member 140 can be avoided when the first pipe fitting 110 and the second pipe fitting 120 move relatively axially, and the sealing member 140 can be limited in the axial direction O, further enhancing the reliability of the connection device 100 during use.

[0063] In some embodiments, referring again to Figure 2 , the first pipe fitting 110 has a plurality of receiving grooves 114, and the plurality of receiving grooves 114 are arranged at intervals in the axial direction O; the connection device 100 includes a plurality of sealing members 140, which are embedded in the plurality of receiving grooves 114 such that at least one sealing member 140 is provided in the plurality of receiving grooves 114.

[0064] In the above embodiments, by providing a plurality of sealing members 140, the sealing performance between the first pipe fitting 110 and the second pipe fitting 120 is further enhanced, enhancing the reliability of the connection device 100 during use. In addition, in some embodiments, the adjusting assembly 133 that can save effort can also reduce the influence of more frictional resistance brought by the plurality of sealing members 140, so that the connection device 100 has both good sealing performance and low difficulty of use.

[0065] In some embodiments, referring again to Figure 2, the first pipe fitting 110 includes a first part 115 and a second part 116 connected along the first direction X. The first part 115 passes through the first connection hole 1311, and the second part 116 is connected to the second pipe fitting 120. The maximum dimension of the first part 115 perpendicular to the axial direction O is smaller than the maximum dimension of the second part 116 perpendicular to the axial direction O.

[0066] Specifically, the dimension of the first part 115 in the radial direction is smaller than the dimension of the second direction Y in the radial direction.

[0067] In the above embodiments, since the maximum dimension of the first part 115 perpendicular to the axial direction O is smaller than the maximum dimension of the second part 116 perpendicular to the axial direction O, the flow cross-sectional areas at both ends of the connecting device 100 are closer, so as to reduce the pressure loss of the fluid passing through the connecting device 100. In addition, in some embodiments, the maximum dimension of the first part 115 perpendicular to the axial direction O is equal to the maximum dimension of the second pipe fitting 120 perpendicular to the axial direction O, and the apertures of the first connection hole 1311 and the second connection hole 1321 are equal, that is, the first connector 131 and the second connector 132 can be exactly the same, reducing the types of parts and making the manufacturing difficulty of the connecting device 100 lower.

[0068] Correspondingly, please refer to Figure 4 , the present application also provides a pipeline assembly, including a first connection section 200 and at least one connecting device 100 as described in any one of the above embodiments. The first connection section 200 extends along the first direction X. The first connection section 200 includes a first connection end 210 and a second connection end 220 along the first direction X. The first connection end 210 is used to connect to the engine, and the second connection end 220 is used to connect to the functional device; at least one connecting device 100 extends along the first direction X, and one of the first pipe fitting 110 and the second pipe fitting 120 of the connecting device 100 is connected and communicated with the first connection end 210 along the first direction X, and the connecting device 100 is used to change the position of the first connection end 210 relative to the engine.

[0069] Among them, for the connecting device 100 extending along the first direction X, that is, the first direction X is the axial direction O of the connecting device 100, the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 along the first direction X can be changed, and the dimension of the connecting device 100 in the first direction X can be changed. The connecting device 100 is used to keep the positions of the first connection end 210 and the second connection end 220 unchanged when the inlet and outlet positions of the engine change.

[0070] Specifically, in some embodiments, the functional device is one or more of a filter, a pump, and a valve.

[0071] In the above embodiments, by connecting the connecting device 100 arranged along the first direction X at one end of the first connecting section 200 along the first direction X, the total dimension of the first connecting section 200 and the connecting device 100 along the first direction X can be changed. When the model of the engine changes and the positions of the inlet and outlet of the engine change in the first direction X, the pipeline assembly can change only the total dimension of the first connecting section 200 and the connecting device 100 along the first direction X without changing the positions of the functional devices, and can connect the functional devices and the inlet and outlet of the engine, avoiding the need to modify the pipeline assembly.

[0072] In some embodiments, the pipeline assembly further includes a shock-absorbing joint 700, and the shock-absorbing joint 700 is arranged at the end of the pipeline assembly and connected to the engine to filter the vibration from the engine.

[0073] In some embodiments, please refer to again Figure 4 , it further includes a second connecting section 300 and at least one connecting device 100 extending along the second direction Y. The second connecting section 300 extends along the second direction Y. The first direction X intersects the second direction Y. The second connecting section 300 includes a third connecting end 310 and a fourth connecting end 320 along the second direction Y. The third connecting end 310 is connected to the second connecting end 220, and the fourth connecting end 320 is used to connect the functional device; and one of the first pipe fitting 110 and the second pipe fitting 120 of the connecting device 100 is connected to and communicated with the fourth connecting end 320 along the second direction Y.

[0074] Wherein, for the connecting device 100 extending along the second direction Y, that is, the second direction Y is the axial direction O of the connecting device 100, the maximum distance between the first pipe fitting 110 and the second pipe fitting 120 of the connecting device 100 along the second direction Y can be changed, and the dimension of the connecting device 100 in the second direction Y can be changed.

[0075] The connecting device 100 can change the total length of the second connecting section 300 and the connecting device 100 along the second direction Y, so as to change the positions of the third connecting end 310 and the fourth connecting end 320 relative to the functional device.

[0076] In the above embodiments, when the dimension of the inlet and outlet of the engine changes along the second direction Y, the connecting device 100 can change the position of the second connecting section 300 along the second direction Y, so that the second connecting section 300 can change according to the change in the position of the inlet and outlet of the engine, so as to maintain the connection between the third connecting end 310 and the second connecting end 220, and the fourth connecting end 320 can also be connected to the functional device with an unchanged position, further improving the flexibility of the pipeline assembly without the need to modify the pipeline assembly when the engine model changes.

[0077] In some embodiments, please refer to again Figure 4, at least one connecting device 100 extends along a third direction Z, the first direction X, the second direction Y, and the third direction Z intersect with each other, and the connecting device 100 is located between the second connecting end 220 and the third connecting end 310. One of the first pipe fitting 110 and the second pipe fitting 120 of the connecting device 100 is connected to the second connecting end 220, and the other is connected to the third connecting end 310.

[0078] Wherein, the connecting device 100 extending along the third direction Z, that is, the third direction Z is the axial direction O of the connecting device 100. The maximum distance between the first pipe fitting 110 and the second pipe fitting 120 of the connecting device 100 along the third direction Z can be changed, and the dimension of the connecting device 100 in the third direction Z can be changed.

[0079] In the above embodiment, when the dimension of the inlet and outlet of the engine along the third direction Z changes, the connecting device 100 can change the distance between the first connecting section 200 and the second connecting section 300 along the third direction Z, so that the first connecting section 200 follows the change of the inlet and outlet of the engine along the third direction Z, while the position of the second connecting section 300 remains unchanged. Thus, the pipeline assembly can connect the engine and the functional device without changing the position of the functional device. At the same time, there is no need to avoid modifying the pipeline assembly.

[0080] In the above embodiment, by providing at least one connecting device 100 that can change its length in different directions in three directions, that is, it can connect the engine and the functional device without changing the functional device and without modifying the pipeline assembly after the engine model is changed or the position is changed, improving the applicability of the pipeline assembly.

[0081] In some embodiments, referring again to Figure 4 , the pipeline assembly further includes a third connecting section. The third connecting section is located between the connecting device 100 and the second connecting end 220 along the third direction Z and is respectively connected to the second connecting end 220 and the connecting device 100; and / or, the pipeline assembly further includes a third connecting section. The third connecting section is located between the connecting device 100 and the third connecting end 310 along the third direction Z and is respectively connected to the third connecting end 310 and the connecting device 100.

[0082] Specifically, in some embodiments, the third connecting section is connected between the first connecting section 200 and the connecting device 100 arranged along the third direction Z; in other embodiments, the third connecting section is connected between the second connecting section 300 and the connecting device 100 arranged along the third direction Z; in still other embodiments, the pipeline assembly includes at least two third connecting sections, which are respectively connected between the first connecting section 200 and the connecting device 100 arranged along the third direction Z and between the second connecting section 300 and the connecting device 100 arranged along the third direction Z.

[0083] In the above embodiments, by providing the third connecting section, the length of the connecting device 100 arranged along the third direction Z is reduced, and the total mass of the pipeline assembly is reduced.

[0084] In some embodiments, the pipeline assembly further includes elbows. The first connecting section 200 and the second connecting section 300 are connected by an elbow, and the second connecting section 300 and the third connecting section are connected by an elbow, so that the fluid can change its direction along an arc inside the pipeline assembly, thereby reducing the pressure loss of the fluid inside the pipeline assembly.

[0085] In some embodiments, please refer to again Figure 4 , the pipeline assembly further includes a first bracket 500. The first bracket 500 connects the first connecting section 200 along the first direction X, and the first bracket 500 is used to support the first connecting section 200.

[0086] It can be understood that the pipeline assembly may be arranged on a bench, a base or the ground. By providing the first bracket 500 to fix the first connecting section 200, it is convenient for adjusting the length of the connecting device 100 arranged along the first direction X. In some embodiments, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other, and the first direction X is the height direction.

[0087] In some embodiments, please refer to again Figure 4 and Figure 5 , the pipeline assembly further includes a second bracket 600. The second bracket 600 includes a moving part 610 and a fixing part 620 connected along the first direction X. The moving part 610 has a moving hole 611. The second connecting section 300 or the third connecting section passes through the moving hole 611 and can move relative to the moving part 610. The fixing part 620 is used to fix the second bracket 600.

[0088] In the above embodiments, the second bracket 600 that can move relative to the second connecting section 300 or the third connecting section is provided, so that when adjusting the pipeline assembly within a small range, the second bracket 600 can be not moved, that is, the adjustment of the pipeline assembly is completed, improving the convenience of use of the pipeline assembly.

[0089] The above has introduced in detail a connecting device 100 and a pipeline assembly provided by the embodiments of the present application. Specific examples are used in the present application to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A connection device, characterized in that: include: A first pipe (110), the first pipe (110) having a first accommodating cavity (111), the first accommodating cavity (111) extending along an axial direction (O), and the first accommodating cavity (111) passing through the first pipe (110) along the axial direction (O); a second pipe (120), part of which is arranged in the first accommodating cavity (111), the second pipe (120) is connected to the first pipe (110), the second pipe (120) has a second accommodating cavity (121), the second accommodating cavity (121) penetrates the second pipe (120) along the axial direction (O), and the first accommodating cavity (111) and the second accommodating cavity (121) are in communication; The second pipe member (120) is movable relative to the first pipe member (110) along the axial direction (O) to change the maximum distance between the first pipe member (110) and the second pipe member (120) along the axial direction (O).

2. The connection device according to claim 1, characterized in that: The first tube member (110) has a first inner wall (112), and the first inner wall (112) is arranged to form the first accommodating cavity (111); the first tube member (110) has a guide groove (113), and the guide groove (113) is arranged on the first inner wall (112), and the guide groove (113) is communicated with the first accommodating cavity (111), and the guide groove (113) extends along the axial direction (O), and the guide groove (113) has a bottom wall (1131), a first groove wall (1132), and a second groove wall (1133); the bottom wall (1131) is located between the first groove wall (1132) and the second groove wall (1133) along the axial direction (O), and respectively connects the first groove wall (1132) and the second groove wall (1133); The second pipe member (120) comprises a main body (122) and a raised portion (123); a portion of the main body (122) is inserted into the first accommodating cavity (111) and connected to the first inner wall (112); the raised portion (123) is connected to the main body (122); the raised portion (123) is arranged between the main body (122) and the bottom wall (1131); the first groove wall (1132) and the second groove wall (1133) are used to limit the raised portion (123) along the axial direction (O).

3. The connection device according to claim 2, characterized in that: The connecting device (100) further comprises a limiting assembly (130), wherein the limiting assembly (130) comprises: A first connecting member (131), the first connecting member (131) having a first connecting hole (1311), the first pipe member (110) being connected to and passing through the first connecting hole (1311); A second connecting member (132), the second connecting member (132) having a second connecting hole (1321), and a portion of the second tube (120) exposed outside the first accommodating cavity (111) is connected to and passed through the second connecting hole (1321); An adjustment component (133), wherein the adjustment component (133) connects the first connecting member (131) and the second connecting member (132), and the adjustment component (133) is used to change the maximum distance between the first connecting member (131) and the second connecting member (132) along the axial direction (O), so as to change the maximum distance between the first pipe member (110) and the second pipe member (120) along the axial direction (O).

4. The connection device according to claim 2, characterized in that: The first pipe member (110) has a receiving groove (114), and the receiving groove (114) is communicated with the first receiving cavity (111); the connecting device (100) further comprises a sealing member (140), and the sealing member (140) is embedded in the receiving groove (114). The sealing member (140) is located between the first pipe member (110) and the second pipe member (120), and seals and connects the first pipe member (110) and the second pipe member (120).

5. The connection device according to claim 4, characterized in that: The first pipe member (110) has a plurality of receiving grooves (114), and the plurality of receiving grooves (114) are arranged at intervals along the axial direction (O); the connecting device (100) comprises a plurality of sealing members (140) embedded in the plurality of receiving grooves (114), so that at least one sealing member (140) is arranged in the plurality of receiving grooves (114).

6. The connection device according to claim 3, characterized in that: The first pipe member (110) comprises a first portion (115) and a second portion (116) connected along a first direction (X), the first portion (115) being passed through the first connecting hole (1311), the second portion (116) being connected to the second pipe member (120), and the maximum dimension of the first portion (115) along a direction perpendicular to the axial direction (O) being smaller than the maximum dimension of the second portion (116) along a direction perpendicular to the axial direction (O).

7. A pipeline assembly, characterized in that: include: A first connecting section (200), the first connecting section (200) extending along a first direction (X), the first connecting section (200) comprising a first connecting end (210) and a second connecting end (220) along the first direction (X), the first connecting end (210) being used to connect to an engine, and the second connecting end (220) being used to connect to a functional device; At least one connecting device (100) as described in any one of claims 1 to 6 above, at least one of the connecting devices (100) extending along the first direction (X), and one of the first pipe member (110) and the second pipe member (120) of the connecting device (100) is connected and communicated with the first connecting end (210) along the first direction (X), and the connecting device (100) is used to change the position of the first connecting end (210) relative to the engine.

8. The pipe assembly according to claim 7, characterized in that Also includes: a second connecting section (300), the second connecting section (300) extending along a second direction (Y), the first direction (X) intersecting the second direction (Y), the second connecting section (300) comprising a third connecting end (310) and a fourth connecting end (320) along the second direction (Y), the third connecting end (310) being connected to the second connecting end (220), and the fourth connecting end (320) being used to connect to the functional device; At least one of the connecting devices (100) extends along the second direction (Y), and one of the first pipe (110) and the second pipe (120) of the connecting device (100) is connected and communicated with the fourth connecting end (320) along the second direction (Y).

9. The pipe assembly according to claim 8, characterized in that At least one of the connecting devices (100) extends along a third direction (Z), the first direction (X), the second direction (Y) and the third direction (Z) intersect with each other, and the connecting device (100) is located between the second connecting end (220) and the third connecting end (310), and one of the first pipe member (110) and the second pipe member (120) of the connecting device (100) is connected to the second connecting end (220), and the other is connected to the third connecting end (310).

10. The pipe assembly according to claim 9, characterized in that The pipeline assembly further comprises a third connecting section (400), wherein the third connecting section (400) is located between the connecting device (100) and the second connecting end (220) along the third direction (Z), and respectively connects the second connecting end (220) and the connecting device (100); and / or, The pipeline assembly further comprises a third connecting section (400), wherein the third connecting section (400) is located between the connecting device (100) and the third connecting end (310) along the third direction (Z), and respectively connects the third connecting end (310) and the connecting device (100).

11. The pipe assembly according to claim 7, characterized in that The pipeline assembly further comprises a first bracket (500), wherein the first bracket (500) is connected to the first connecting section (200) along the first direction (X), and the first bracket (500) is used to support the first connecting section (200).

12. The pipe assembly according to claim 10, characterized in that The pipeline assembly also includes a second bracket (600), the second bracket (600) includes a movable part (610) and a fixed part (620) connected along a first direction (X), the movable part (610) has a movable hole (611), the second connecting section (300) or the third connecting section (400) is passed through the movable hole (611) and can move relative to the movable part (610), and the fixed part (620) is used to fix the second bracket (600).

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