Pipe joint structure

Abstract

The utility model provides a pipe joint structure, which belongs to the technical field of hydraulic pipelines and comprises a male joint and a female joint, a male joint shell is of a cylindrical structure, a first spring is wrapped in the male joint shell, a limiting ring is arranged at the bottom of the first spring and fixedly connected with the male joint shell, and a first pressing column is arranged at the top of the first spring. The first pressing column is clamped in the male connector shell and is cylindrical, and the outer wall of the top of the first pressing column makes contact with the top of the male connector shell. A second spring is arranged on the inner wall of the female connector shell, the bottom of the second spring is fixedly connected with the female connector shell through a second limiting ring, a third pressing cylinder is arranged on the top of the second spring, the third pressing cylinder is cylindrical, a second pressing column is wrapped in the third pressing cylinder, and the second pressing column is cylindrical; the bottom of the second pressing column is fixedly connected with the female connector shell. The oil way pipe joint can be conveniently connected, and the problem of oil leakage after disassembly is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic pipelines, and in particular relates to a pipe joint structure. Background Art

[0002] Oil pipe fittings are special components used to connect oil pipes or pipelines, usually used in hydraulic systems, lubrication systems, fuel systems and other fields. Their function is to connect oil pipes or pipelines so that liquid oil (such as hydraulic oil, lubricating oil, fuel, etc.) can flow in the system, and usually also have a sealing function to prevent liquid leakage.

[0003] When removing the oil line pipe fittings, the pressure in the hydraulic system may cause the oil to flow out of the fittings. If the fittings do not have a check function, the fluid will flow freely, which may cause leakage, contaminate the working environment or cause other unnecessary problems. Fittings with a check function can prevent or minimize such leakage, ensuring that the working environment is kept clean and safe during the removal process; at the same time, the high-pressure oil in the hydraulic system may spray out when the fittings are removed, posing a potential danger to the operator. By using fittings with a check function, the spraying of oil can be reduced or prevented, reducing the risk of injury to the operator. Utility Model Content

[0004] In view of this, the utility model provides a pipe joint structure, which can facilitate the connection of the oil pipe joint and avoid the problem of oil leakage after disassembly.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a pipe joint structure, which includes a male joint and a female joint, wherein the male joint includes a male joint shell, a first spring, and a first pressing column. The male joint shell is a cylindrical structure, and the first spring is wrapped inside. A limiting ring is provided at the bottom of the first spring, and the limiting ring is fixedly connected to the male joint shell. The first pressing column is provided on the top of the first spring, and the first pressing column is clamped inside the male joint shell. The first pressing column is columnar, and the top outer wall is in contact with the top of the male joint shell.

[0007] The female connector includes a female connector shell, a second spring, a second pressing column, and a third pressing cylinder. The female connector shell is a cylindrical shell. The inner wall of the female connector shell is provided with the second spring. The bottom of the second spring is fixedly connected to the female connector shell through a second limiting ring. The top of the second spring is provided with a third pressing cylinder. The third pressing cylinder is cylindrical. The interior of the third pressing cylinder is wrapped with the second pressing column. The second pressing column is columnar. The bottom of the second pressing column is fixedly connected to the female connector shell.

[0008] On the basis of the above technical solution, a pipe joint structure of the utility model can also be improved as follows:

[0009] The male connector housing and the first pressing column have the same height, and the thickness of the male connector housing and the first pressing column at the contact point is greater than the thickness of the male connector housing and the first pressing column at the bottom of the contact point;

[0010] The female connector shell, the second pressing column, and the top of the third pressing cylinder have the same height, the top of the outer wall of the second pressing column is in contact with the top of the inner wall of the third pressing cylinder, the top of the outer wall of the third pressing cylinder is in contact with the top of the inner wall of the female connector shell, and the thickness of the female connector shell, the second pressing column, and the third pressing cylinder is greater than the middle part of the second pressing column.

[0011] Furthermore, a recess is provided on the top outer wall of the first pressing post, the top outer wall of the second pressing post, and the top inner wall of the female connector housing, and the recess is used to accommodate an O-ring.

[0012] Furthermore, the outer wall at the top of the male connector shell and the inner wall at the top of the female connector shell are provided with threads that fit together.

[0013] Furthermore, the male connector and the female connector are made of stainless steel.

[0014] Furthermore, the cross-sectional shape of the top of the male connector housing and the top of the third pressing cylinder are the same.

[0015] Furthermore, the thickness of the second pressing column, the top and bottom of the male connector shell, and the top of the female connector shell is smaller than the radius of the female connector shell.

[0016] Compared with the prior art, the beneficial effects of a pipe joint structure provided by the utility model are:

[0017] Ease of use: The design of the male and female connectors makes them easy to connect and disconnect while ensuring the firmness of the connection. The design of the first and second pressing posts allows the operator to easily press and secure the connectors;

[0018] Durability: The male and female connectors made of stainless steel have good corrosion resistance and wear resistance, and can work stably for a long time in various environments;

[0019] Sealing: The recessed design is used to accommodate the O-ring, ensuring the sealing of the pipe joint, preventing liquid or gas leakage, and improving the safety of the system;

[0020] Stability: The thread design in the joint structure ensures a stable connection between the male and female joints to prevent accidental loosening or falling off;

[0021] Structural strength: The design of each component in the joint structure is reasonable, and the matching of the thickness and geometric shape of the top ensures the strength and stability of the overall structure, thereby extending the service life;

[0022] Comfortable operation: The design of the pressing column and the pressing cylinder makes the operation more comfortable and less tiring even after long-term use.

[0023] Safety: The limit ring in the structure and the fastening connection of each component ensure the safety during use and prevent accidental injuries.

[0024] In general, the friendly effect of this pipe joint structure is reflected in its reasonable design, good usability, strong stability, high safety, etc., which can provide users with a convenient, safe and reliable use experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 is a schematic diagram of a pipe joint structure;

[0027] Figure 2 A schematic diagram of the splicing of a pipe joint structure;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Male connector; 11. Male connector housing; 12. First spring; 13. First pressing column; 2. Female connector; 21. Female connector housing; 22. Second spring; 23. Second pressing column; 24. Third pressing cylinder. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0031] like Figure 1 , Figure 2As shown, it is a first embodiment of a pipe joint structure provided by the utility model. In this embodiment, it includes a male joint 1 and a female joint 2. The male joint 1 includes a male joint shell 11, a first spring 12, and a first pressing column 13. The male joint shell 11 is a cylindrical structure, and the first spring 12 is wrapped inside. A limiting ring is provided at the bottom of the first spring 12, and the limiting ring is fixedly connected to the male joint shell 11. A first pressing column 13 is provided on the top of the first spring 12, and the first pressing column 13 is clamped inside the male joint shell 11. The first pressing column 13 is columnar, and the top outer wall is in contact with the top of the male joint shell 11.

[0032] The female connector 2 includes a female connector shell 21, a second spring 22, a second pressing column 23, and a third pressing cylinder 24. The female connector shell 21 is a cylindrical shell. The inner wall of the female connector shell 21 is provided with a second spring 22. The bottom of the second spring 22 is fixedly connected to the female connector shell 21 through a second limiting ring. The top of the second spring 22 is provided with a third pressing cylinder 24. The third pressing cylinder 24 is cylindrical. The interior of the third pressing cylinder 24 is wrapped with the second pressing column 23. The second pressing column 23 is columnar. The bottom of the second pressing column 23 is fixedly connected to the female connector shell 21.

[0033] Among them, in the above technical solution, the male connector housing 11 and the first pressing column 13 have the same height, and the thickness of the male connector housing 11 and the first pressing column 13 at the contact point is greater than the thickness below the male connector housing 11 and the first pressing column 13;

[0034] The tops of the female connector shell 21, the second pressing column 23, and the third pressing cylinder 24 are of the same height, the top of the outer wall of the second pressing column 23 is in contact with the top of the inner wall of the third pressing cylinder 24, and the top of the outer wall of the third pressing cylinder 24 is in contact with the top of the inner wall of the female connector shell 21. The thickness of the female connector shell 21, the second pressing column 23, and the third pressing cylinder 24 is greater than the middle part of the second pressing column 23.

[0035] Furthermore, in the above technical solution, the top outer wall of the first pressing column 13, the top outer wall of the second pressing column 23, and the top inner wall of the female connector housing 21 are provided with recesses for accommodating O-type rubber rings.

[0036] Furthermore, in the above technical solution, the top outer wall of the male connector housing 11 and the top inner wall of the female connector housing 21 are provided with mutually fitting threads.

[0037] Furthermore, in the above technical solution, the male connector 1 and the female connector 2 are made of stainless steel.

[0038] Furthermore, in the above technical solution, the cross-sectional shapes of the top of the male connector housing 11 and the top of the third pressing cylinder 24 are the same.

[0039] Furthermore, in the above technical solution, the thickness of the second pressing column 23 , the top and bottom of the male connector housing 11 , and the top of the female connector housing 21 are smaller than the radius of the female connector housing 21 .

[0040] When in use, insert the protrusion on the top of the male connector 1 into the concave part on the top of the female connector 2. At this time, the male connector housing 11 is fixed, the top contacts the third pressing cylinder 24, the third pressing cylinder 24 is pressed downward, the second pressing column 23 is fixed, the top contacts the first pressing column 13, the first pressing column 13 is pressed upward, so that the third pressing cylinder 24 and the first pressing column 13 leave their original positions, the male connector 1 and the female connector 2 are connected, a passage is formed inside, and the interface works;

[0041] During disassembly, unscrew the male connector 1. At this time, the top of the third pressing cylinder 24 has no pressing pressure and moves upward, and the inner and outer sides respectively contact the outer wall of the second pressing column 23 and the inner wall of the female connector housing 21, and at the same time, the O-ring is further sealed to prevent oil leakage from the interface; the pressure at the bottom of the first pressing column 13 disappears and moves downward, and the outer wall contacts the male connector housing 11, and at the same time, the O-ring is further sealed to prevent oil leakage from the interface.

[0042] Specifically, the principle of the utility model is:

[0043] Male connector part: The male connector includes a cylindrical outer shell with a first spring installed inside. The bottom of the spring is provided with a stop ring connected to the male connector outer shell;

[0044] The top of the first spring is connected to the first pressing column, and this columnar structure is stuck in the male connector housing and contacts the top thereof.

[0045] Female connector part: The female connector is also a cylindrical shell with a second spring installed inside. The bottom of this spring is connected to the female connector shell through a second limiting ring;

[0046] The top of the second spring is connected to the third pressing cylinder. The second pressing column is installed inside the cylindrical structure and is connected to the third pressing cylinder.

[0047] Connection method: The top outer wall of the male connector and the top inner wall of the female connector are provided with mutually fitting threads to ensure the stability of the connection.

[0048] The top of the outer wall of the second pressing column of the female connector contacts the top of the inner wall of the third pressing cylinder, and at the same time, the top of the outer wall of the third pressing cylinder contacts the top of the inner wall of the female connector housing.

[0049] O-ring recess: recesses are provided on the top outer wall of the male connector housing, the top inner wall of the female connector housing, and the top outer walls of the first and second pressing posts to accommodate O-rings and enhance sealing.

[0050] Material and structural features: Both the male and female connectors are made of stainless steel, which is corrosion-resistant and high-temperature resistant.

[0051] The cross-sectional shapes of the top of the male connector housing and the top of the third pressing cylinder are the same, ensuring the stability of the connection.

[0052] This pipe joint structure realizes the automatic pressing function during connection through the design of springs and pressing columns. At the same time, the design of threads and O-rings ensures the stability and sealing of the connection, which is suitable for connection needs in various pipeline systems.

Claims

1. A pipe joint structure, characterized in that: The invention comprises a male connector (1) and a female connector (2), wherein the male connector (1) comprises a male connector shell (11), a first spring (12), and a first pressing column (13); the male connector shell (11) is a cylindrical structure, and the first spring (12) is wrapped inside; a limiting ring is provided at the bottom of the first spring (12), and the limiting ring is fixedly connected to the male connector shell (11); the first pressing column (13) is provided at the top of the first spring (12), and the first pressing column (13) is clamped inside the male connector shell (11); the first pressing column (13) is columnar, and the top outer wall is in contact with the top of the male connector shell (11); The female connector (2) comprises a female connector shell (21), a second spring (22), a second pressing column (23), and a third pressing cylinder (24); the female connector shell (21) is a cylindrical shell; the inner wall of the female connector shell (21) is provided with the second spring (22); the bottom of the second spring (22) is fixedly connected to the female connector shell (21) via a second limiting ring; the top of the second spring (22) is provided with a third pressing cylinder (24); the third pressing cylinder (24) is cylindrical; the interior of the third pressing cylinder (24) is wrapped with the second pressing column (23); the second pressing column (23) is columnar; the bottom of the second pressing column (23) is fixedly connected to the female connector shell (21).

2. A pipe joint structure according to claim 1, characterized in that: The male connector housing (11) and the first pressing column (13) have the same height, and the thickness of the male connector housing (11) and the first pressing column (13) at the contact point is greater than the thickness of the male connector housing (11) and the first pressing column (13) at the bottom of the contact point. The tops of the female connector shell (21), the second pressing column (23), and the third pressing cylinder (24) are of the same height; the top of the outer wall of the second pressing column (23) is in contact with the top of the inner wall of the third pressing cylinder (24); the top of the outer wall of the third pressing cylinder (24) is in contact with the top of the inner wall of the female connector shell (21); and the thickness of the female connector shell (21), the second pressing column (23), and the third pressing cylinder (24) is greater than the middle of the second pressing column (23).

3. A pipe joint structure according to claim 2, characterized in that: The top outer wall of the first pressing column (13), the top outer wall of the second pressing column (23), and the top inner wall of the female connector housing (21) are provided with recesses, and the recesses are used to accommodate an O-ring.

4. A pipe joint structure according to claim 3, characterized in that: The top outer wall of the male connector housing (11) and the top inner wall of the female connector housing (21) are provided with threads that fit together.

5. A pipe joint structure according to claim 4, characterized in that: The male connector (1) and the female connector (2) are made of stainless steel.

6. A pipe joint structure according to claim 5, characterized in that: The top of the male connector housing (11) and the top of the third pressing cylinder (24) have the same cross-sectional shape.

7. A pipe joint structure according to claim 6, characterized in that: The thickness of the second pressing column (23), the top and bottom of the male connector housing (11), and the top of the female connector housing (21) are smaller than the radius of the female connector housing (21).

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