Connector for diesel engine, diesel engine and assembling method

Abstract

The invention belongs to the technical field of engineering elements, and particularly relates to a connector, in particular to a connector for a diesel engine, the diesel engine and an assembling method. The protection mechanism is movably arranged on the connecting pipeline, and the protection mechanism is suitable for wrapping the end, used for being connected with an external pipeline, of the connecting pipeline; when the protection mechanism moves towards the holding mechanism, the holding mechanism is driven to hold the connecting pipeline tightly, so that when the connecting pipeline is connected with an external refrigerant or heating medium, the connecting pipeline is held tightly through the holding mechanism, the connecting pipeline is prevented from shaking, engine oil leakage in a diesel engine caused by shaking is avoided, and the service life of the diesel engine is prolonged. And leakage, caused by shaking, of a refrigerant or a heating medium in the connecting pipeline is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering components, and specifically relates to a joint, and in particular to a joint for a diesel engine, a diesel engine and an assembly method. Background Art

[0002] During the use of a diesel engine, the temperature of the internal oil may be too high or too low due to different use environments. Therefore, it is necessary to lay pipelines in the diesel engine oil and connect other refrigerants or heat media through the pipelines so that the oil can be cooled or heated quickly. However, oil leakage occurs when the refrigerant or heat media is introduced into the pipeline.

[0003] Therefore, due to the technical problem that the pipeline may vibrate when a refrigerant or a heat medium is introduced into the pipeline, it is necessary to design a diesel engine joint, a diesel engine and an assembly method.

[0004] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0005] The embodiments of the present disclosure at least provide a diesel engine joint, a diesel engine, and an assembly method.

[0006] In a first aspect, an embodiment of the present disclosure provides a connector for a diesel engine, comprising: A clamping mechanism, wherein the clamping mechanism is arranged on the connecting pipe; A protection mechanism, the protection mechanism is movably arranged on the connecting pipe, and the protection mechanism is suitable for wrapping an end of the connecting pipe for connecting to an external pipe; When the protection mechanism moves toward the clamping mechanism, it drives the clamping mechanism to clamp the connecting pipe.

[0007] In an optional embodiment, the clamping mechanism includes: a fixing ring; The fixing ring is sleeved on the connecting pipe; A connecting strip is equidistantly arranged on one side wall of the fixing ring along the circumference of the fixing ring; The connecting strip is arranged obliquely, and the distance between one end of the connecting strip away from the fixing ring and the outer wall of the connecting pipe is longer than that between the other end; A protrusion is arranged on a surface of the connecting strip away from the connecting pipe.

[0008] In an optional embodiment, the protection mechanism includes: a threaded sleeve; The threaded sleeve is sleeved on the connecting pipe, and the threaded sleeve is threadedly connected to the connecting pipe; The connecting strip is located between the threaded sleeve and the fixing ring; A side of the threaded sleeve close to the fixing ring is an inclined surface; A limiting ring is arranged around the outer wall of the threaded sleeve; The threaded sleeve presses the connecting strip toward the fixing ring, so that the connecting strip approaches and contacts the outer wall of the connecting pipe to hold the connecting pipe tightly.

[0009] In an optional embodiment, a thread is provided on the outer wall of the connecting pipe, the thread extends to the end of the connecting pipe, the threaded sleeve is adapted to the thread, and the threaded sleeve is rotated to move the threaded sleeve along the connecting pipe to get closer to or away from the connecting strip.

[0010] In a second aspect, the present disclosure also provides a diesel engine, including: A housing, wherein an oil storage cavity is disposed in the housing, and an inlet and an outlet communicating with the oil storage cavity are formed on the housing; The inlet and the outlet are both provided with the above-mentioned joints, and the two joints are connected through a pipeline mechanism.

[0011] In an optional embodiment, the pipeline mechanism includes: at least two layers of pipelines; The pipeline is in a continuous and regular curved shape; One end of the pipeline is communicated with the connecting pipe in the joint at the inlet, and the other end is communicated with the connecting pipe in the joint at the outlet.

[0012] In an optional embodiment, the connecting pipe in the joint passes through the corresponding outlet or inlet into the interior of the housing; The fixing ring on the connecting pipe is interference-fitted with the inner wall of the corresponding outlet or inlet.

[0013] In an optional embodiment, inner walls of the inlet and the outlet are provided with grooves corresponding to the protrusions in the joint.

[0014] In an optional embodiment, a sealing nut is provided on the connecting pipe, the sealing nut is located in the oil storage cavity, and a sealing gasket is provided between the sealing nut and the inner wall of the shell.

[0015] In a third aspect, the present disclosure also provides an assembly method using the above-mentioned diesel engine joint, comprising: When the protection mechanism moves toward the clamping mechanism, it drives the clamping mechanism to clamp the connecting pipe.

[0016] The beneficial effect of the present invention is that the connector for a diesel engine comprises: a clamping mechanism, which is arranged on the connecting pipe; a protecting mechanism, which is movably arranged on the connecting pipe, and is suitable for wrapping the end of the connecting pipe for connecting to an external pipe; when the protecting mechanism moves toward the clamping mechanism, it drives the clamping mechanism to clamp the connecting pipe, thereby achieving that when the connecting pipe is connected to an external refrigerant or heat medium, the connecting pipe is clamped by the clamping mechanism, thereby avoiding shaking of the connecting pipe, avoiding oil leakage in the diesel engine caused by shaking, and avoiding leakage of refrigerant or heat medium in the connecting pipe caused by shaking.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of a diesel engine connector provided by an embodiment of the present disclosure; Figure 2 A structural schematic diagram of a diesel engine provided by an embodiment of the present disclosure; Figure 3 A cross-sectional view of a diesel engine provided by an embodiment of the present disclosure; Figure 4 for Figure 3 Enlarged schematic diagram of part A.

[0021] In the figure: 1 connector, 11 connecting pipe, 12 clamping mechanism, 121 fixing ring, 122 connecting strip, 123 convex block, 13 protecting mechanism, 131 threaded sleeve, 132 limiting ring, 14 sealing nut; 2 housing, 21 oil storage chamber, 22 inlet, 23 outlet, 24 slot; 3 pipeline mechanisms, 31 pipelines. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0024] During the use of a diesel engine, the temperature of the internal oil may be too high or too low due to different use environments. Therefore, it is necessary to lay pipelines in the engine oil of the diesel engine to connect other refrigerants or heat media through the pipelines so that the engine oil can be quickly cooled or heated. However, the inventors have found that when the refrigerant or heat media is introduced into the pipeline, the pipeline will vibrate. The above vibration is likely to cause oil leakage and refrigerant or heat media leakage. In addition, since it is necessary to introduce refrigerant or heat media, it is necessary to frequently install and remove external pipes on the pipeline to input refrigerant or heat media. Frequent installation and removal of external pipes will cause the pipeline to be subjected to axial force, causing the pipeline to loosen, thereby affecting the seal between the pipeline and the diesel engine, resulting in oil leakage.

[0025] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present invention in this article for the above problems should be the contributions made by the inventor to the present invention during the disclosure process.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0028] like Figure 1 As shown, at least one disclosed embodiment provides a connector for a diesel engine, comprising: a clamping mechanism 12, which is arranged on a connecting pipe 11; a protecting mechanism 13, which is movably arranged on the connecting pipe 11, and is suitable for wrapping an end portion of the connecting pipe 11 for connecting an external pipe; when the protecting mechanism 13 moves toward the clamping mechanism 12, it drives the clamping mechanism 12 to clamp the connecting pipe 11, thereby achieving that when the connecting pipe 11 is connected to an external refrigerant or heat medium, the connecting pipe 11 is clamped by the clamping mechanism 12, thereby preventing the connecting pipe 11 from shaking, preventing oil leakage in the diesel engine caused by the shaking, and preventing leakage of the refrigerant or heat medium in the connecting pipe 11 caused by the shaking.

[0029] like Figure 1 As shown, in an optional embodiment, the clamping mechanism 12 includes: a fixing ring 121; the fixing ring 121 is sleeved on the connecting pipe 11; connecting strips 122 are equidistantly arranged on one side wall of the fixing ring 121 along the circumference of the fixing ring 121; the connecting strips 122 are inclined, and the distance between one end of the connecting strip 122 away from the fixing ring 121 and the outer wall of the connecting pipe 11 is longer than that of the other end; a protrusion 123 is arranged on the side of the connecting strip 122 away from the connecting pipe 11.

[0030] In this embodiment, the fixing ring 121 is fixedly connected to the connecting pipe 11 , and the connecting pipe 11 can be firmly installed on the housing 2 by interference fit between the connecting strip 122 and the inner wall of the inlet 22 or outlet 23 on the diesel engine housing 2 .

[0031] In this embodiment, the connecting strip 122 may be made of an elastic material. When the protection mechanism 13 approaches and presses the connecting strip 122 , the connecting strip 122 may approach and contact the connecting pipe 11 to hold the connecting pipe 11 tightly.

[0032] In this embodiment, there are multiple connecting strips 122, which are arranged around the connecting pipe 11. When the connecting strips 122 contact the connecting pipe 11, they can cooperate and hold the connecting pipe 11 from multiple directions.

[0033] In this embodiment, a bevel can be provided on one end of the connecting strip 122 close to the threaded sleeve 131 to facilitate the contact and cooperation between the bevel of the threaded sleeve 131 and the connecting strip 122, so that the connecting strip 122 is pressed by the threaded sleeve 131 to approach the connecting pipe 11 and contact the connecting pipe 11 to hold the connecting pipe 11 tightly.

[0034] In this embodiment, when the connecting pipe 11 is installed in the corresponding inlet 22 or outlet 23 on the diesel engine housing 2, when the connecting strip 122 is not squeezed by the threaded sleeve 131, the protrusion 123 on the connecting strip 122 is located in the corresponding groove 24. At this time, the cooperation between the protrusion 123 and the groove 24 can reduce or offset the axial force applied to the connecting pipe 11 when the external pipe is removed from the connecting pipe 11 or connected to the connecting pipe 11, thereby avoiding frequent installation and disassembly of the external pipe causing looseness between the connecting pipe 11 and the housing 2, and avoiding looseness of the connecting pipe 11 causing the sealing effect between the connecting pipe 11 and the housing 2 to be affected.

[0035] like Figure 1 As shown, in an optional embodiment, the protection mechanism 13 includes: a threaded sleeve 131; the threaded sleeve 131 is sleeved on the connecting pipe 11, and the threaded sleeve 131 is threadedly connected to the connecting pipe 11; the connecting strip 122 is located between the threaded sleeve 131 and the fixing ring 121; the side of the threaded sleeve 131 close to the fixing ring 121 is an inclined surface; a limiting ring 132 is arranged around the outer wall of the threaded sleeve 131.

[0036] In this embodiment, the threaded sleeve 131 cooperates with the thread on the connecting pipe 11 , so that when the threaded sleeve 131 is rotated, the threaded sleeve 131 can move along the connecting pipe 11 .

[0037] In this embodiment, when the connector 1 is installed at the corresponding outlet 23 or inlet 22, and the connector 1 has not yet been connected to an external pipe, the protrusion 123 is located in the corresponding slot 24, and the threaded sleeve 131 completely wraps the end of the connecting pipe 11 extending out of the shell 2 to protect the threads on the end, prevent the threads from being damaged due to collision with other objects, and prevent the threads from being unable to be firmly connected to the external pipe after being damaged.

[0038] In this embodiment, the threads on the connecting pipe 11 can also be used to connect to external pipes.

[0039] In this embodiment, when the connector 1 is installed on the housing 2 , the limiting ring 132 is located outside the housing 2 , and a portion of the threaded sleeve 131 can extend into the corresponding inlet 22 or outlet 23 .

[0040] In this embodiment, when the connecting pipe 11 needs to be connected to an external pipe, the threaded sleeve 131 is rotated to expose the threads on the connecting pipe 11, and the length of the threaded sleeve 131 extending into the corresponding inlet 22 or outlet 23 increases. At this time, the outer wall of the threaded sleeve 131 contacts the inner wall of the corresponding inlet 22 or outlet 23, and the threaded sleeve 131 can be squeezed by the inner wall of the inlet 22 or outlet 23 to tightly fit the connecting pipe 11, so as to hold the connecting pipe 11 tightly. The threaded sleeve 131 gradually contacts and squeezes the connecting strip 122, so that the end of the connecting strip 122 away from the fixing ring 121 begins to gradually approach the connecting pipe 11, and drives the protrusion 123 to gradually move out of the groove 24. When the protrusion 123 is about to completely move out of the groove 24, the movement of the threaded sleeve 131 is stopped, and the external pipe can be connected to the exposed threads on the connecting pipe 11. At this time, since the protrusion 123 has not been completely moved out of the slot 24, the axial force applied to the connecting pipe 11 when installing the external pipe will be reduced or offset to prevent the connecting pipe 11 from loosening. When the external pipe is connected to the connecting pipe 11 and the end of the external pipe contacts the limiting ring 132, the threaded sleeve 131 continues to be rotated so that the limiting ring 132 contacts the outer wall of the shell 2. At this time, the threaded sleeve 131 moves to the extreme position, and the protrusion 123 is completely moved out of the slot 24. The connecting strip 122 contacts and holds the outer wall of the connecting pipe 11, holds the connecting pipe 11, and then continues to install the external pipe until it contacts the limiting ring 132. At this time, the threaded sleeve 131 is clamped by the external pipe and the outer wall of the shell 2, so that the threaded sleeve 131 is locked to prevent the threaded sleeve 131 from loosening and ensure the holding effect of the connecting strip 122.

[0041] In this embodiment, when it is necessary to remove the external pipe from the connecting pipe 11, the external pipe is first loosened to separate the external pipe from the limiting ring 132. After a certain distance exists between the limiting ring 132 and the external pipe, the removal of the external pipe is stopped. At this time, the threaded sleeve 131 is rotated to move the threaded sleeve 131 away from the fixing ring 121, and the pressed end of the connecting strip 122 is restored to the direction away from the connecting pipe 11, and the protrusion 123 is gradually inserted into the slot 24 again. At this time, the rotation of the threaded sleeve 131 is stopped, and the external pipe is completely removed. At this time, since the protrusion 123 partially enters the slot 24 again, the connecting pipe is not easily damaged when the external pipe is removed. The axial force applied by 11 will be reduced or offset to prevent the connecting pipe 11 from loosening. When the external pipe is removed, the threaded sleeve 131 is rotated again so that the threaded sleeve 131 completely wraps the end of the connecting pipe 11 to protect the end of the connecting pipe 11; when the external pipe is removed, when the external pipe is loosened from the connecting pipe 11 for the first time, the removal of the external pipe is stopped when there is a small distance between its end and the limit ring 132. This distance allows the protrusion 123 to partially re-extend into the corresponding slot 24 after the threaded sleeve 131 moves, and then the external pipe is removed again to minimize the influence of the axial force on the connecting pipe 11 during the removal process.

[0042] In an optional embodiment, a thread is provided on the outer wall of the connecting pipe 11, and the thread extends to the end of the connecting pipe 11. The threaded sleeve 131 is adapted to the thread, and the threaded sleeve 131 is rotated so that the threaded sleeve 131 moves along the connecting pipe 11 to get closer to or away from the connecting strip 122.

[0043] like Figure 2 As shown, at least one other disclosed embodiment further provides a diesel engine, comprising: a housing 2, in which an oil storage chamber 21 is provided, and an inlet 22 and an outlet 23 connected to the oil storage chamber 21 are opened on the housing 2; the inlet 22 and the outlet 23 are both provided with the above-mentioned joints 1, and the two joints 1 are connected through a pipeline mechanism 3.

[0044] like Figure 2 As shown, in an optional embodiment, the pipeline mechanism 3 includes: at least two layers of pipelines 31; the pipeline 31 is in a continuous regular curved shape; one end of the pipeline 31 is connected to the connecting pipe 11 in the joint 1 at the inlet 22, and the other end is connected to the connecting pipe 11 in the joint 1 at the outlet 23.

[0045] In this embodiment, the pipeline 31 with a continuous regular bend shape can increase the contact area with the engine oil and improve the cooling or heating effect.

[0046] In this embodiment, the pipeline 31 may be three-layered, etc. The multi-layered pipeline 31 can increase the contact area between the pipeline 31 and the engine oil, thereby improving the cooling or heating effect.

[0047] In an optional embodiment, the connecting pipe 11 in the joint 1 passes through the corresponding outlet 23 or inlet 22 and enters the interior of the housing 2 ; the fixing ring 121 on the connecting pipe 11 is interference fit with the inner wall of the corresponding outlet 23 or inlet 22 .

[0048] like Figure 4 As shown, in an optional embodiment, the inner walls of the inlet 22 and the outlet 23 are provided with a slot 24 corresponding to the protrusion 123 in the connector 1. like Figure 3 As shown, in an optional embodiment, a sealing nut 14 is provided on the connecting pipe 11 , the sealing nut 14 is located in the oil storage chamber 21 , and a sealing gasket is provided between the sealing nut 14 and the inner wall of the housing 2 .

[0049] In this embodiment, the connection pipe 11 and the oil storage chamber 21 are sealed by a sealing gasket to prevent leakage of the engine oil.

[0050] At least one other disclosed embodiment further provides an assembly method using the above-mentioned diesel engine connector 1, comprising: the protection mechanism 13 drives the clamping mechanism 12 to clamp the connecting pipe 11 when moving toward the clamping mechanism 12.

[0051] In summary, the diesel engine connector 1 includes: a clamping mechanism 12, which is arranged on the connecting pipe 11; a protective mechanism 13, which is movably arranged on the connecting pipe 11, and the protective mechanism 13 is suitable for wrapping the end of the connecting pipe 11 for connecting to an external pipe; when the protective mechanism 13 moves toward the clamping mechanism 12, it drives the clamping mechanism 12 to clamp the connecting pipe 11, thereby achieving that when the connecting pipe 11 is connected to an external refrigerant or heat medium, the connecting pipe 11 is clamped by the clamping mechanism 12, thereby preventing the connecting pipe 11 from shaking, preventing oil leakage in the diesel engine caused by shaking, and preventing leakage of the refrigerant or heat medium in the connecting pipe 11 caused by shaking.

[0052] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used in this document unless explicitly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0054] Spatially relative terms, such as "inside", "outside", "below", "below", "down", "above", "on", etc., may be used herein to facilitate description of the relationship of one element or feature to another element or feature as illustrated in the figure. In addition to the orientation depicted in the figure, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is turned over, the elements described as "below" or "below" other elements or features will be oriented to be "above" other elements or features. Therefore, the example term "below" can cover the orientation above and below. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0055] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A connector for a diesel engine, characterized in that: include: A clamping mechanism (12), wherein the clamping mechanism (12) is arranged on the connecting pipe (11); A protection mechanism (13), the protection mechanism (13) being movably arranged on the connecting pipe (11), the protection mechanism (13) being suitable for wrapping an end portion of the connecting pipe (11) for connecting to an external pipe; When the protection mechanism (13) moves towards the clamping mechanism (12), it drives the clamping mechanism (12) to clamp the connecting pipe (11).

2. The diesel engine connector according to claim 1, characterized in that: The clamping mechanism (12) comprises: a fixing ring (121); The fixing ring (121) is sleeved on the connecting pipe (11); Connecting strips (122) are arranged on one side wall of the fixing ring (121) at equal intervals along the circumference of the fixing ring (121); The connecting strip (122) is arranged obliquely, and the distance between one end of the connecting strip (122) away from the fixing ring (121) and the outer wall of the connecting pipe (11) is longer than that between the other end; A protrusion (123) is provided on a surface of the connecting strip (122) away from the connecting pipe (11).

3. The diesel engine connector according to claim 2, characterized in that: The protection mechanism (13) comprises: a threaded sleeve (131); The threaded sleeve (131) is sleeved on the connecting pipe (11), and the threaded sleeve (131) is threadedly connected to the connecting pipe (11); The connecting strip (122) is located between the threaded sleeve (131) and the fixing ring (121); A surface of the threaded sleeve (131) close to the fixing ring (121) is an inclined surface; A limiting ring (132) is disposed around the outer wall of the threaded sleeve (131); When the threaded sleeve (131) moves toward the fixing ring (121), it presses the connecting strip (122), so that the connecting strip (122) approaches and contacts the outer wall of the connecting pipe (11), thereby tightly holding the connecting pipe (11).

4. The diesel engine joint according to claim 3, characterized in that: The outer wall of the connecting pipe (11) is provided with a thread, the thread extending to the end of the connecting pipe (11), the threaded sleeve (131) being adapted to the thread, and the threaded sleeve (131) is rotated so that the threaded sleeve (131) moves along the connecting pipe (11) to approach or move away from the connecting strip (122).

5. A diesel engine, characterized in that: include: A housing (2), wherein an oil storage chamber (21) is provided in the housing (2), and an inlet (22) and an outlet (23) communicating with the oil storage chamber (21) are provided on the housing (2); The inlet (22) and the outlet (23) are both provided with a connector (1) as claimed in claim 1, and the two connectors (1) are connected via a pipeline mechanism (3).

6. The diesel engine according to claim 5, characterized in that: The pipeline mechanism (3) comprises: at least two layers of pipelines (31); The pipeline (31) is in a continuous and regularly curved shape; One end of the pipeline (31) is in communication with the connecting pipe (11) in the joint (1) at the inlet (22), and the other end is in communication with the connecting pipe (11) in the joint (1) at the outlet (23).

7. The diesel engine according to claim 5, characterized in that: The connecting pipe (11) in the joint (1) passes through the corresponding outlet (23) or inlet (22) and enters the interior of the housing (2); The fixing ring (121) on the connecting pipe (11) is interference-fitted with the inner wall of the corresponding outlet (23) or inlet (22).

8. The diesel engine according to claim 7, characterized in that: The inner walls of the inlet (22) and the outlet (23) are provided with a slot (24) corresponding to the protrusion (123) in the connector (1).

9. The diesel engine according to claim 7, characterized in that: A sealing nut (14) is provided on the connecting pipe (11); the sealing nut (14) is located in the oil storage cavity (21); and a sealing gasket is provided between the sealing nut (14) and the inner wall of the housing (2).

10. An assembly method using the diesel engine joint as claimed in claim 1, characterized in that: include: When the protection mechanism (13) moves toward the clamping mechanism (12), it drives the clamping mechanism (12) to clamp the connecting pipe (11).

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