Metal pipe quick-connect connector

Abstract

The present invention provides a metal pipe quick-plug connector, comprising a male head and a female head that are matched and arranged, and a female head valve that can be radially elastically arranged in the inner cavity of the female head; when the male head is connected to the female head, the male head is inserted into the inner cavity of the female head and the female head valve is pushed open, at this time, the inner tubes of the male head and the female head are connected, the male head and the female head are fixed by a limiting structure, and an end face and axial double sealing structure are provided between the male head and the female head. The present invention realizes quick plug-in and pull-out installation through the ball fixing of the male head and the female head, which is plug-in and plug-in, and pull-out and disconnect, which facilitates the rapid installation and maintenance of the system. When the male head and the female head are externally connected, the synchronous inner hole is connected, the liquid can pass through the joint smoothly, complete the heat energy transfer work, and can be used repeatedly in the on-off state. The device has a compact structure, multiple anti-leakage designs, and a good sealing effect. Whether in the connected state or the disconnected state, the male head and the female head will not leak or pollute.

Description

Technical Field

[0001] The invention relates to the field of machinery, in particular to a pipeline connection technology, and more particularly to a pipeline quick-plug connector, in particular to a metal pipeline quick-plug connector. Background Art

[0002] The main equipment of 5G base station consists of BBU (baseband processing unit) and AAU (active antenna processing unit). AAU mainly consists of DAC (digital-to-analog conversion), RF (radio frequency unit), PA (power amplifier) ​​and antenna. The main factors affecting the power consumption of base stations are: PA power consumption, leakage power consumption and chip power consumption. The leakage current of the chip changes with temperature. When the chip heats up, the static power consumption increases exponentially. Similarly, the heat of the data center motherboard requires a lot of electricity to cool.

[0003] Therefore, liquid cooling technology is used in the prior art to ensure that base stations, data centers, etc. work within a reasonable temperature range and reduce the power consumption of base stations and data centers. In the liquid cooling pipeline, the equipment and the hose are generally connected by a connector. However, the existing connectors have the following defects: (1) When connecting, the male and female heads of the connector need to be individually designed with valves for control, which makes the installation and maintenance operations cumbersome; (2) When unplugging, liquid may leak from the connection between the male and female heads, causing leakage pollution. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a connector which can be connected and disconnected as soon as it is plugged in and pulled out, can be installed and maintained conveniently and quickly, has a compact structure, has a good sealing effect, and can prevent liquid dripping or leakage from contamination.

[0005] In order to solve the above technical problems, the technical solution of the present invention is to provide a metal pipe quick-plug connector, which is characterized in that: it includes a male head and a female head that are matched, and the female head valve can be axially elastically and movably arranged in the inner cavity of the female head; when the male head is connected with the female head, the male head is inserted into the inner cavity of the female head and pushes open the female head valve, at this time, the inner tubes of the male head and the female head are connected, the male head and the female head are fixed by a limiting structure, and an end face and axial double sealing structure are provided between the male head and the female head.

[0006] Preferably, the female head includes a female head body, and the front end of the female head body is connected to the pipe joint; the female head body is provided with the female head valve and a first spring, one end of the first spring abuts against the inner cavity of the pipe joint, and the other end of the first spring contacts the end surface of the female head valve and elastically supports the female head valve, so that the female head valve can elastically move axially in the inner cavity of the female head body.

[0007] More preferably, a tapered hole is provided at the rear end of the female head body, and a ball is provided in the tapered hole; an outer sheath is sleeved on the outside of the female head body, and the rear end of the outer sheath is arranged outside the tapered hole on the female head body, and a ball groove is provided at the tail of the rear end of the outer sheath; a second spring is provided between the outer sheath and the female head body, and the second spring elastically supports the outer sheath so that the outer sheath can be elastically displaced axially along the outside of the female head body.

[0008] More preferably, the pipe joint is a stepped pipe structure with a small front and a large rear, and a clamping nut for clamping the external hose onto the front end of the pipe joint is provided on the outer periphery of the pipe joint.

[0009] More preferably, the female head body is threadedly connected to the pipe joint and is sealed by an O-ring; the female head body is gap-matched with the female head valve, and the female head body and the female head valve are sealed by an O-ring.

[0010] Furthermore, the male connector includes a male connector body, one end of a male connector sheath is nested and sealed and fixed in the male connector body, and a male connector sleeve is arranged between the male connector body and the male connector sheath; a third spring is arranged in the inner cavity of the male connector sleeve, and the third spring elastically supports the male connector sleeve so that the male connector sleeve can be elastically displaced axially along the outside of the male connector body.

[0011] Furthermore, the male head body and the male head sleeve are clearance-matched, and grease is coated in the gap between the male head body and the male head sleeve; the front end inner surface and the rear end inner surface of the male head body are both provided with grooves, and O-rings are provided in the grooves to form a seal between the male head body and the male head sleeve.

[0012] Furthermore, the outer surface of the male sheath and the inner cavity surface of the female body are a clearance fit structure, the outer surface of the male sheath is provided with a ball groove for limiting the ball on the female body, and the front end of the ball groove on the outer surface of the male sheath is provided with a raised step.

[0013] Furthermore, the front end face of the male sleeve is provided with an O-ring for forming an end face seal with the female body, and the inner cavity of the female body is axially provided with an O-ring for forming an axial seal with the male sleeve.

[0014] Furthermore, when the male head is connected to the female head, the male head is inserted into the inner cavity of the female head, and the ball on the female head body contacts the outer surface of the male head sheath and moves inward; when the end face of the male head sleeve reaches the inner cavity of the female head body, the male head sleeve retreats in the gap between the male head body and the male head sheath, and the male head body gradually exposes the end face of the male head sleeve and enters the female head body, and pushes the female head valve in the female head body; when the ball sinks into the ball groove on the male head sheath, the male head and the female head are stationary and fixed; at this time, the male head body completely pushes open the female head valve, and the male head and the inner cavity of the female head form a conductive state;

[0015] When the male head is disconnected from the female head, the outer sleeve of the female head is pushed in the disconnection direction to expose the ball, and then the male head is withdrawn in the disconnection direction. The ball rolls in the ball groove on the male head sleeve, and then the ball contacts the edge step of the ball groove at the rear end of the outer sleeve. The raised step on the surface of the male head sleeve pushes the ball to withdraw from the ball groove, and the ball is axially withdrawn outward to the ball groove on the outer sleeve. At this time, the ball is completely separated from the male head sleeve; the male head gradually withdraws from the female head cavity, the female head valve is reset due to the action of the first spring, the male head sleeve is reset due to the action of the third spring, and the outer sleeve is reset due to the action of the second spring.

[0016] Furthermore, the male connector and the female connector are provided with different colors.

[0017] Compared with the prior art, the metal pipe quick-plug connector provided by the present invention has the following beneficial effects:

[0018] 1. The ball fixing of the male and female heads can realize quick plug-in and pull-out installation, which is convenient for quick installation and maintenance of the system.

[0019] 2. When the male and female connectors are connected externally, the inner holes are connected synchronously, and the liquid can pass through the connector smoothly to complete the heat transfer work. The connector can be used repeatedly in the on and off state.

[0020] 3. Compact structure, multiple anti-leakage designs, good sealing effect, no matter in connected or disconnected state, the male and female connectors will not leak or be contaminated.

[0021] 4. The male and female connectors are distinguished by color, which can quickly distinguish the cooling lines visually. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a metal pipe quick-connect connector provided by an embodiment of the present invention;

[0023] Figure 2This is a schematic diagram of the female connector structure;

[0024] Figure 3 This is a schematic diagram of the male connector structure;

[0025] Figure 4 This is a structural diagram of the male and female connectors being disconnected;

[0026] Figure 5 It is a structural diagram of the connection status of the male and female connectors. DETAILED DESCRIPTION

[0027] Figure 1 The overall structural schematic diagram of a metal pipe quick-plug connector provided for an embodiment of the invention is provided, wherein the metal pipe quick-plug connector consists of two parts, a male head 100 and a female head 200. Both the male head 100 and the female head 200 are provided with anti-leakage designs. The male head 100 and the female head 200 can be quickly connected and disconnected, and can be connected and disconnected by plugging and unplugging.

[0028] Combination Figure 2 The female connector 200 includes a female connector body 4, the front end of which is threadedly connected to the pipe joint 1 and sealed by a first O-ring 3, which is embedded in the front end of the female connector body 4; a female connector valve 6 is plugged in the female connector body 4, and a first spring 5 is placed in the female connector body 4, one end of the first spring 5 is against the inner cavity of the pipe joint 1, and the other end of the first spring 5 is in contact with the end face of the female connector valve 6, so that the first spring 5 can elastically support the female connector valve 6. The female connector body 4 and the female connector valve 6 are gap-matched, and the second O-ring 7 is sealed in the middle, and the female connector valve 6 can elastically move in the axial direction in the inner hole of the female connector body 4.

[0029] The pipe joint 1 is used to connect the external hose 20. The pipe joint 1 is a stepped pipe structure with a small front and a large rear. The outer periphery of the middle of the pipe joint 1 is provided with an external thread. The external hose 20 is sleeved on the outside of the front end of the pipe joint 1, and the clamping nut 2 is sleeved on the outside of the external hose 20 to clamp the external hose 20; the rear end of the clamping nut 2 is provided with an internal thread, and the rear end of the clamping nut 2 is threadedly connected with the middle of the pipe joint 1 to achieve the clamping and fixing of the external hose 20. The clamping nut 2 is provided with a stopper and a knife backing groove to prevent the clamping nut 2 from excessively moving downward and breaking.

[0030] A third O-ring 10 is also embedded in the inner cavity of the female body 4 axially. The female body 4 is provided with 8 tapered holes at the rear end, and a ball 13 is placed in each tapered hole, and a part of the ball 13 is exposed outside the tapered hole.

[0031] The outer sheath 8 is sleeved on the outside of the female body 4, the front end of the outer sheath 8 is in smooth contact with the outer surface of the rear end of the pipe joint 1, the rear end of the outer sheath 8 is arranged outside the tapered hole at the rear end of the female body 4, and a ball groove 22 is arranged at the tail of the rear end of the outer sheath 8. A second spring 9 is arranged between the outer sheath 8 and the female body 4, and the second spring 9 elastically supports the outer sheath 8 so that the outer sheath 8 can be elastically displaced along the axial direction of the outer side of the female body 4.

[0032] Combination Figure 3 The male connector 100 includes a male connector body 18, one end of a male connector sheath 17 is nested in the male connector body 18 and threadedly connected, and fixed with glue; a male connector sleeve 15 is arranged between the male connector body 18 and the male connector sheath 17, and a sealed state without leakage is formed between the male connector body 18 and the male connector sheath 17, and the male connector body 18 and the male connector sleeve 15 are clearance-matched, and grease is applied in the clearance. A third spring 14 is placed in the inner cavity of the male connector sleeve 15, and the third spring 14 elastically supports the male connector sleeve 15, so that the male connector sleeve 15 can be elastically displaced along the outer axial direction of the male connector body 18.

[0033] The front end of the male body 18 is not threaded, and a groove is provided on the inner surface of the front end and the inner surface of the rear end of the male body 18, and the fifth O-ring 12 and the sixth O-ring 16 are placed in the two grooves respectively to form a seal with the male sleeve 15. The outer surface of the male sleeve 17 and the inner surface of the female body 4 are a clearance fit structure, and the outer surface of the male sleeve 17 is provided with a ball groove 23 for limiting the ball 13 on the female body 4, and the depth of the ball groove 23 is equal to the depth of the ball groove 22 on the outer sleeve 8. A raised step 24 is provided at the front end of the ball groove 23 on the outer surface of the male sleeve 17.

[0034] The front end surface of the male sleeve 15 is also provided with a groove, and the seventh O-ring 11 is embedded in the groove to achieve sealing with the female body 4.

[0035] A groove is also provided on the rear end surface of the male body 18 , and an eighth O-ring 19 is embedded in the groove to achieve sealing with the device interface 21 .

[0036] In this embodiment, the male connector and the female connector are distinguished by different colors, so that the cooling lines can be quickly visually distinguished, which is convenient for use and maintenance.

[0037] The specific working principle of the metal pipe quick-connect connector provided in this embodiment is as follows:

[0038] The male connector 100 and the female connector 200 can be connected quickly. Insert the male connector 100 into the female connector 200, and the ball 13 on the female connector body 4 contacts the outer surface of the male connector sheath 17 and moves inward until the ball 13 sinks into the ball groove 23 on the male connector sheath 17 and is stationary and fixed, thereby forming a connection and fixing structure between the male connector 100 and the female connector 200, which is not easy to fall out. At this time, the seventh O-ring 11 at the front end of the male connector body 18 contacts the female connector valve 6, and the female connector valve 6 is elastically supported by the first spring 5; the male connector sleeve 15 contacts the end face of the inner cavity of the female connector body 4, and is sealed by the third O-ring 10; in this way, a two-way seal is formed on the end face and the axial direction, and the anti-leakage effect is better, such as Figure 5 shown.

[0039] The male connector 100 and the female connector 200 can be disconnected quickly. Push the outer sheath 8 of the female connector 200 in the disconnection direction, and the ball 13 rolls on the male connector sheath 17. Then the ball 13 contacts the edge step of the ball groove 22 at the rear end of the outer sheath 8. The raised step 24 on the surface of the male connector sheath 17 pushes the ball 13 out of the ball groove 23. When it reaches the edge of the ball groove 23, the ball 13 is axially withdrawn outward into the ball groove 22 on the outer sheath 8. At this time, the ball 13 can be completely separated from the male connector sheath 17. Pull the male connector 100 out of the female connector 200, and the outer sheath 8 is reset under the action of the second spring 9. Figure 4 shown.

[0040] The specific working method of the metal pipe quick plug connector provided in this embodiment is as follows:

[0041] First, connect the pipe joint 1 on the female head 200 to the external hose 20, and tighten the external hose 20 by tightening the nut 2; connect the rear end of the male head body 18 on the male head 100 to the equipment interface 21, and seal it with the eighth O-ring 19.

[0042] Before the male connector 100 is connected to the female connector 200, the eight balls 13 on the female connector 200 gradually roll outward along the axis of the male connector sheath 17, the outer sheath 8 retreats, and the balls 13 enter the ball grooves 22 on the outer sheath 8, resulting in a smaller interference fit between the balls 13 and the male connector sheath 17. At this time, the male connector body 18 enters the inner cavity of the female connector body 4, and when the end face of the male connector sleeve 15 abuts against the inner cavity of the female connector body 4, the male connector sleeve 15 retreats in the gap between the male connector body 18 and the male connector sheath 17, and the gap is coated with grease. The male connector body 18 begins to expose the end face of the male connector sleeve 15 and enters the female connector body 4, pushing the female connector valve 6 in the female connector body 4. When pushed to the bottom, the male connector body 18 completely pushes open the female connector valve 6, forming a conducting state. At the same time, the ball 13 continues to roll forward in the male head sleeve 17. When it reaches the ball groove 23 on the male head sleeve 17, the resistance of the ball 13 is the smallest. At this time, the outer sleeve 8 returns to its original position under the action of the second spring 9, covers the surface of the ball 13, and clamps the ball in the ball groove 23 on the male head sleeve 17. The entire male head 100 can no longer move.

[0043] Before the male connector 100 is disconnected from the female connector 200, the outer sheath 8 of the female connector 200 is withdrawn to the bottom in the disconnection direction. After the eight balls 13 are exposed, the male connector 100 is withdrawn, and the balls 13 begin to roll in the ball grooves 23 on the male connector sheath 17. When the balls 13 reach the edge of the ball grooves 23, they are not restricted by the outer sheath 8, and the balls 13 roll outwards axially until they leave the ball grooves 23, and the male connector 100 gradually withdraws from the female connector 200 cavity. The male connector body 18 in the female connector 200 cavity retreats until it completely leaves the female connector 200, and the female connector valve 6 quickly returns to its original position in the female connector body 4 due to the action of the first spring 5. The male connector sleeve 15 is quickly ejected due to the action of the third spring 14 until the male connector body 18 is flush with the end surface of the male connector sleeve 15. In this way, the male connector 100 and the female connector 200 are sealed and leak-proof when they are quickly disconnected at the same time.

[0044] It should be understood that although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are used only to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit without departing from the scope of the exemplary embodiments.

[0045] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0046] The above is only a preferred embodiment of the present invention, and is not any formal or substantial limitation of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present invention, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present invention, can make some changes, modifications and evolutions of the technical content disclosed above, which are equivalent embodiments of the present invention; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A metal pipe quick-connect connector, characterized in that: The invention comprises a male head (100) and a female head (200) which are matched and arranged, wherein a female head valve (6) can be axially elastically movably arranged in the inner cavity of the female head (200); when the male head (100) is connected with the female head (200), the male head (100) is inserted into the inner cavity of the female head (200) and pushes open the female head valve (6), at which time the inner tubes of the male head (100) and the female head (200) are connected, the male head (100) and the female head (200) are fixed by a limiting structure, and an end face and axial double sealing structure is provided between the male head (100) and the female head (200); The female head (200) comprises a female head body (4), the front end of which is connected to the pipe joint (1); the female head valve (6) and a first spring (5) are arranged in the female head body (4), one end of the first spring (5) abuts against the inner cavity of the pipe joint (1), and the other end of the first spring (5) contacts the end surface of the female head valve (6) and elastically supports the female head valve (6), so that the female head valve (6) can elastically move axially in the inner cavity of the female head body (4); a conical hole is arranged at the rear end of the female head body (4), and a ball (13) is arranged in the conical hole; the outer sleeve of the female head body (4) An outer sheath (8) is provided, the rear end of the outer sheath (8) is arranged outside the conical hole on the female head body (4), and a ball groove (22) is provided at the rear end of the outer sheath (8); a second spring (9) is provided between the outer sheath (8) and the female head body (4), the second spring (9) elastically supports the outer sheath (8) so that the outer sheath (8) can be elastically displaced along the outer axial direction of the female head body (4); the pipe joint (1) is a stepped pipe structure with a small front and a large rear, and a clamping nut (2) is provided on the outer periphery of the pipe joint (1) for clamping an external hose (20) onto the front end of the pipe joint (1).

2. A metal pipe quick-connect connector as claimed in claim 1, characterized in that: The female head body (4) is threadedly connected to the pipe joint (1) and is sealed by an O-ring; the female head body (4) and the female head valve (6) are clearance-matched, and the female head body (4) and the female head valve (6) are sealed by an O-ring.

3. A metal pipe quick-connect connector as claimed in claim 1, characterized in that: The male connector (100) comprises a male connector body (18), one end of a male connector sheath (17) being nested and sealed in the male connector body (18), and a male connector sleeve (15) being arranged between the male connector body (18) and the male connector sleeve (17); a third spring (14) is arranged in the inner cavity of the male connector sleeve (15), and the third spring (14) elastically supports the male connector sleeve (15), so that the male connector sleeve (15) can be elastically displaced along the outer axial direction of the male connector body (18).

4. A metal pipe quick-connect connector as claimed in claim 3, characterized in that: The male head body (18) and the male head sleeve (15) are clearance-matched, and grease is applied in the clearance between the male head body (18) and the male head sleeve (15); grooves are provided on the front inner surface and the rear inner surface of the male head body (18), and O-rings are provided in the grooves to form a seal between the male head body (18) and the male head sleeve (15).

5. A metal pipe quick-connect connector as claimed in claim 3, characterized in that: The outer surface of the male head shield (17) and the inner surface of the female head body (4) are in a clearance fit structure, the outer surface of the male head shield (17) is provided with a ball groove (23) for limiting the ball (13) on the female head body (4), and the front end of the ball groove (23) on the outer surface of the male head shield (17) is provided with a raised step (24).

6. A metal pipe quick-connect connector as claimed in claim 3, characterized in that: The front end face of the male sleeve (15) is provided with an O-ring for forming an end face seal with the female body (4), and the inner cavity of the female body (4) is axially provided with an O-ring for forming an axial seal with the male sleeve (15).

7. A metal pipe quick-connect connector as claimed in claim 5, characterized in that: When the male connector (100) is connected to the female connector (200), the male connector (100) is inserted into the inner cavity of the female connector (200), and the ball (13) on the female connector body (4) contacts the outer surface of the male connector sheath (17) and moves inward; when the end surface of the male connector sleeve (15) contacts the inner cavity of the female connector body (4), the male connector sleeve (15) retreats in the gap between the male connector body (18) and the male connector sheath (17), and the male connector body (18) gradually exposes the inner cavity of the female connector body (4). The male sleeve (15) is pushed into the end surface of the female body (4) and pushes the female valve (6) in the female body (4); when the ball (13) is sunk into the ball groove (23) on the male sleeve (17), the male head (100) and the female head (200) are stationary and fixed; at this time, the male body (18) completely pushes open the female valve (6), and the inner cavities of the male head (100) and the female head (200) are in a conducting state; the male head (100) and the female head (200) are in a conducting state. When the female head (200) is disconnected, the outer sheath (8) of the female head (200) is pushed in the disconnection direction to expose the ball (13), and then the male head (100) is withdrawn in the disconnection direction. The ball (13) rolls in the ball groove (23) on the male head sheath (17), and then the ball (13) contacts the edge step of the ball groove (22) at the rear end of the outer sheath (8), and the raised step (24) on the surface of the male head sheath (17) pushes the ball (13) out of the male head sheath. The ball groove (23) is formed by the outer sleeve (8), and the ball (13) is axially withdrawn outward into the ball groove (22) on the outer sleeve (8). At this time, the ball (13) is completely separated from the male sleeve (17); the male head (100) gradually withdraws from the female head (200) cavity, the female head valve (6) is reset due to the action of the first spring (5), the male head sleeve (15) is reset due to the action of the third spring (14), and the outer sleeve (8) is reset due to the action of the second spring (9).

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