Connector pressure relief assembly allowing under-pressure operation

Abstract

The utility model discloses a connector pressure relief assembly allowing under-pressure operation. The connector pressure relief assembly comprises a plug part and a liquid collection part, the plug part comprises a plug shell, a sealing block and a spring, the sealing block and the spring providing elastic force for the sealing block to enable the sealing block to be located at the front end of the plug are arranged in the plug shell, and a center hole axially penetrates through the center of the left end of the sealing block; the liquid collecting part comprises a liquid collecting shell and an end cover shell, the end cover shell is located at the tail of the liquid collecting shell, the liquid collecting shell is connected to the rear end of the plug shell, a piston rod is axially arranged in the liquid collecting shell, the tail end of the piston rod penetrates through the end cover shell, and by pushing and pulling the rear end of the piston rod, a liquid collecting cavity with the variable size is formed in an inner cavity of the liquid collecting shell. During liquid discharging, the pressure relief assembly is in a disconnected state, the piston rod is pushed forwards, the cavity in the pressure relief assembly is squeezed, and the medium is discharged from the center hole. During liquid drainage, the liquid collecting shell does not need to be unscrewed, the piston rod is directly pushed and pulled, media in the cavity are drained through the center hole, and liquid drainage is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, in particular to a connector pressure relief component which allows pressure-bearing operation. Background Art

[0002] The pressure relief devices currently used are Figure 1 As shown, it includes a connecting nut, a sealing block, multiple O-shaped rubber rings, a plug disc housing I, a spring, a plug disc housing II, a pressure relief block, a liquid storage, an end cover, a handle, and a key ring. The product is pluggable with the connector socket with patent number CN101581392B.

[0003] When the device is being transported or stored, the plug and socket are disconnected and the device is in a sealed state. When the external ambient temperature changes or there is violent movement, the volume of the liquid inside the device will change significantly, resulting in high internal pressure, which may damage the device in severe cases. Therefore, this device can provide pressure relief and overload protection for the device.

[0004] Its disadvantages are:

[0005] (1) The device must be drained promptly after each use, otherwise the pressure in the liquid collecting chamber will accumulate and increase, thereby affecting the start-up pressure of the pressure relief block and causing the pressure in the controlled equipment to exceed the expected control range.

[0006] (2) When there is a certain pressure inside the equipment, the pressure relief device is plugged into the socket on the equipment, and the rubber ring on the sealing rod of the socket will be squeezed out due to the internal pressure, causing the socket to fail.

[0007] (3) Each time the product is drained, the tail liquid collection housing must be unscrewed, which is a complicated operation and the liquid collection housing is easily loosened, affecting performance. Utility Model Content

[0008] In order to solve the above problems, the utility model proposes a connector pressure relief assembly that allows pressure-sensitive operation. Whether the medium inside the device is full of liquid can be visually judged by the position of the piston rod, avoiding the increase of internal pressure of the device caused by untimely drainage. When draining, there is no need to unscrew the liquid collecting shell, and the medium in the cavity is directly discharged through the center hole on the front sealing block by pushing and pulling the piston rod, which makes drainage more convenient. When plugged into the device socket, the rubber ring at the sealing rod of the socket is always in the protection state of the sealing block sleeve. Even if it is operated under pressure, the rubber ring will not be squeezed out due to internal pressure, and the operation is safer.

[0009] The utility model is realized by the following technical solutions:

[0010] A connector pressure relief assembly that allows pressure-operated operation, the pressure relief assembly comprising a plug part and a liquid collecting part;

[0011] The plug part includes a plug housing, a sealing block, and a spring. The plug housing is provided with a sealing block and a spring that provides elastic force to the sealing block so that the sealing block is located at the front end of the plug. A center hole is provided through the central axis of the left end of the sealing block.

[0012] The liquid collecting part includes a liquid collecting shell and an end cover shell. The end cover shell is located at the tail of the liquid collecting shell, and the liquid collecting shell is connected to the rear end of the plug shell. A piston rod is axially arranged in the liquid collecting shell, and the end of the piston rod passes through the end cover shell and extends to the outer end of the cavity. By pushing and pulling the rear end of the piston rod, the inner cavity of the liquid collecting shell forms a liquid collecting cavity with a variable volume. When discharging liquid, the pressure relief component is disconnected. By pushing the piston rod forward, the cavity volume in the pressure relief component is squeezed, and the medium is discharged from the center hole.

[0013] Furthermore, the connector also includes a socket part, which includes a socket shell, which is plugged into the plug part, and a sealing rod is axially arranged in the socket shell. The right end of the sealing rod is arranged close to the sealing block and matches the inner cavity of the plug-in end of the socket shell, and a sealing gasket is arranged between the right end of the sealing rod and the socket shell.

[0014] Furthermore, a protective sleeve is provided in the inner cavity at the left end of the sealing block, and the protective sleeve matches the right end of the sealing rod.

[0015] Furthermore, staples are provided on both sides of the socket housing, and the plug part also includes a nut, which is located outside one end where the socket housing and the plug housing are plugged in, and the pressure relief assembly is locked by cooperating with the staples of the socket through the curved groove of the nut.

[0016] Furthermore, the socket part also includes a socket tail shell, and the socket tail shell is used to connect to the liquid cooling device.

[0017] Furthermore, a connecting shell is provided between the tail portion of the plug shell and the liquid collecting shell, and the spring extends to the inner cavity of the connecting shell.

[0018] Furthermore, sealing rings are provided between the connection housing, the plug housing and the liquid collecting housing.

[0019] Furthermore, a full liquid mark is arranged on the rod portion of the piston rod.

[0020] Furthermore, the front end of the piston rod and the inner cavity of the liquid collecting housing are sealed by a sealing member, thereby isolating the inner cavity from the outside.

[0021] Furthermore, a sealing rubber ring is provided between the end cover shell and the liquid collecting shell.

[0022] The beneficial effects of the utility model are:

[0023] (1) The device changes the volume of the liquid collecting cavity by means of a piston rod that moves freely in the tail axial direction. The internal pressure of the device can always be controlled in a very low range, thus avoiding the increase of pressure caused by volume expansion inside the liquid cooling device, which may cause damage to the device.

[0024] (2) Whether the medium inside the device is full of liquid can be visually judged by the position of the piston rod. When the piston rod is pushed out to the limit state and the volume cannot continue to increase, the full liquid mark of the piston rod is pushed out of the end cover shell, prompting the operator to disconnect the pressure relief device to drain the liquid in time and re-protect the socket against overpressure, so as to avoid the increase of internal pressure of the device due to untimely drainage;

[0025] (3) A center hole is left in the center of the front sealing block, which ensures that the pressure of the internal cavity is connected with the external atmosphere in the disconnected state, avoiding the pressure inside the pressure relief device. There is no need to unscrew the liquid collecting shell when draining. When draining, the pressure relief device is disconnected, and the cavity volume in the pressure relief device is squeezed directly by pushing the piston rod forward. The medium is discharged from the center hole in the middle of the plug sealing block, making drainage more convenient;

[0026] (4) A protective sleeve is added to the front end of the sealing block of the structure. When plugged into the socket, the plug housing of the pressure relief device pushes away the sealing ring of the socket. When the sealing gasket on the sealing rod of the socket has not yet released the seal, the sealing gasket is inserted into the sealing block sleeve for protection. When plugged into the equipment socket, the rubber ring at the sealing rod of the socket is always in the protection state of the sealing block sleeve. Even when operating under pressure conditions, the rubber ring will not be squeezed out due to the internal pressure, and the operation is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the prior art;

[0028] Figure 2 It is a schematic diagram of the structure of the utility model;

[0029] Figure 3 This is a cross-sectional view of the plug and socket of the utility model when connected;

[0030] Figure 4 This is a schematic diagram of the structure of the utility model when the piston rod is pushed out;

[0031] Figure 5 This is a schematic diagram of the structure of the sealing block of the utility model;

[0032] Figure 6 This is a structural schematic diagram of the utility model in which the sealing rod and sealing gasket of the socket are protected by the protective sleeve during the insertion process;

[0033] Figure numerals: 1. nut, 2. plug housing, 3. sealing block, 4. spring, 5. connecting housing, 6. liquid collecting housing, 7. piston rod, 8. end cover housing, 9. small hole, 10. protective sleeve, 11. socket housing, 12. socket tail housing, 13. sealing rod, 14. staple, 15. sealing gasket, 16. socket spring, 17. full liquid mark. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] like Figure 2 As shown, a connector pressure relief assembly that allows pressure-operated operation, the pressure relief assembly includes a plug part and a liquid collecting part;

[0036] The plug part includes a plug housing 2, a sealing block 3, a spring 4, and a connecting housing 5. In the initial state, the plug sealing block 3 is located at the front end of the plug under the force of its own spring 4. A center hole 9 is provided through the central axis of the left end of the sealing block 3 to ensure that the pressure of the internal cavity is connected with the external atmosphere in the disconnected state, and to ensure that the internal cavity is not pressurized when disconnected;

[0037] The connecting housing 5 is located between the rear of the plug housing 2 and the liquid collecting housing 6 , the spring 4 extends to the inner cavity of the connecting housing 5 , and sealing rings are arranged between the connecting housing 5 and the plug housing 2 and the liquid collecting housing 6 .

[0038] The liquid collecting part comprises a liquid collecting housing 6 and an end cover housing 8. The end cover housing 8 is located at the rear of the liquid collecting housing 6. A sealing rubber ring is arranged between the end cover housing 8 and the liquid collecting housing 6. The liquid collecting housing 6 is connected to the rear end of the plug housing. A piston rod 7 is axially arranged in the liquid collecting housing 6.

[0039] like Figure 4 As shown, a full liquid mark 17 is provided on the rod portion of the piston rod 7, and the end of the piston rod 7 extends through the end cover shell 8 to the outer end of the cavity. The front end of the piston rod 7 and the inner cavity of the liquid collecting shell 6 are sealed by a sealing member to isolate the internal cavity from the outside.

[0040] By pushing and pulling the rear end of the piston rod 7, the inner cavity of the liquid collecting shell 6 forms a liquid collecting cavity with a variable volume. When discharging liquid, the pressure relief component is disconnected. By pushing the piston rod 7 forward, the cavity volume in the pressure relief component is squeezed, and the medium is discharged from the center hole 9.

[0041] When the pressure relief device is used, it should be plugged into the fluid connector socket. Figure 3 As shown, the socket part includes a socket shell 11 and a socket tail shell 12, the socket tail shell 12 is used to connect the liquid cooling device, the socket shell 11 is plugged into the plug part, and a sealing rod 13 is axially elastically arranged in the socket shell 11 through a socket spring 16, the right end of the sealing rod 13 is arranged close to the sealing block 3 and matches the inner cavity of the plug-in end of the socket shell, and a sealing gasket 15 is arranged between the right end of the sealing rod 13 and the socket shell.

[0042] The two sides of the socket housing 11 are provided with staples 14, and the plug part also includes a nut 1, which is a connecting nut. The nut 1 is located outside the end where the socket housing and the plug housing 2 are plugged in. The pressure relief assembly is locked with the staples 14 of the socket through the curved groove of the nut 1. The socket sealing rod 13 pushes open the sealing block 3 of the pressure relief device, connecting the socket and the pressure relief device.

[0043] At this time, the piston rod 7 of the pressure relief device is in an axially free state. When the liquid cooling device connected to the tail of the socket increases in temperature due to the external environment, the volume of the internal medium increases, and the overflowing medium flows to the pressure relief device through the socket, pushing the piston rod 7, thereby increasing the liquid storage space of the medium and avoiding the increase in pressure caused by volume expansion inside the liquid cooling device, thereby damaging the equipment.

[0044] When the piston rod 7 is pushed out to the limit state and its volume cannot continue to increase, the piston rod full liquid mark 17 is pushed out of the end cover housing 8, prompting the operator to disconnect the pressure relief device to drain the liquid in time and re-protect the socket from overpressure.

[0045] When discharging liquid, the pressure relief device is disconnected. By pushing the piston rod 7 forward, the cavity volume in the pressure relief device is squeezed, and the medium is discharged from the central hole 9 in the middle of the plug sealing block.

[0046] If there is a certain pressure in the liquid cooling system itself, the pressure relief device must be inserted under pressure.

[0047] like Figure 5 As shown, the front end of the sealing block 3 of the structure is provided with a protective sleeve 10, and the protective sleeve 10 matches the right end of the sealing rod 13. When plugged into the socket, Figure 6 As shown, the plug housing of the pressure relief device pushes away the sealing ring of the socket, and when the sealing gasket on the sealing rod of the socket has not yet released the seal, the sealing gasket is inserted into the sealing block sleeve for protection, and the sealing gasket on the sealing rod will not be squeezed out due to pressure operation, thereby improving the safety of product use.

[0048] Then pressurized operation is allowed. A pressure relief device with a pressure relief function can be used before the socket and plug on the equipment are connected. First, the device should be plugged in to relieve the pressure. After observing the piston rod push-out position to confirm that there is no pressure in the equipment, the device can be separated and disconnected. This will relieve the pressure in the equipment and ensure the safety of the head seat product connection.

[0049] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A connector pressure relief assembly that allows pressure operation, characterized in that: The pressure relief assembly includes a plug part and a liquid collecting part; The plug part comprises a plug housing (2), a sealing block (3), and a spring (4); the plug housing (2) is provided with a sealing block (3) and a spring (4) for providing elastic force to the sealing block (3) so that the sealing block (3) is located at the front end of the plug; a center hole (9) is provided at the left end of the sealing block (3) in the central axial direction; The liquid collecting part comprises a liquid collecting shell (6) and an end cover shell (8), wherein the end cover shell (8) is located at the rear end of the liquid collecting shell (6), and the liquid collecting shell (6) is connected to the rear end of the plug shell. A piston rod (7) is axially arranged in the liquid collecting shell (6), and the end of the piston rod (7) passes through the end cover shell (8) and extends to the outer end of the cavity. By pushing and pulling the rear end of the piston rod (7), the inner cavity of the liquid collecting shell (6) forms a liquid collecting cavity with a variable volume. When discharging liquid, the pressure relief component is disconnected, and by pushing the piston rod (7) forward, the cavity volume in the pressure relief component is squeezed, and the medium is discharged from the center hole (9).

2. A connector pressure relief assembly that allows pressure-operated operation according to claim 1, characterized in that: The connector also includes a socket part, the socket part including a socket housing (11), the socket housing (11) being plug-connected with the plug part, a sealing rod (13) being axially arranged inside the socket housing (11), the right end of the sealing rod (13) being arranged close to the sealing block (3) and matching with the inner cavity of the plug-in end of the socket housing, and a sealing gasket (15) being arranged between the right end of the sealing rod (13) and the socket housing.

3. A connector pressure relief assembly that allows pressure-operated operation according to claim 2, characterized in that: A protective sleeve (10) is provided in the inner cavity at the left end of the sealing block (3), and the protective sleeve (10) matches the right end of the sealing rod (13).

4. A connector pressure relief assembly that allows operation under pressure according to claim 2, characterized in that: The socket housing (11) is provided with staples (14) on both sides, and the plug portion further comprises a nut (1), the nut (1) being located outside one end where the socket housing and the plug housing (2) are plugged together, and the pressure relief assembly is locked by cooperating with the staples (14) of the socket through the curved groove of the nut (1).

5. A connector pressure relief assembly that allows operation under pressure according to claim 2, characterized in that: The socket part also includes a socket tail shell (12), and the socket tail shell (12) is used for connecting a liquid cooling device.

6. A connector pressure relief assembly that allows operation under pressure according to claim 1, characterized in that: A connecting shell (5) is further provided between the rear portion of the plug shell (2) and the liquid collecting shell (6), and the spring (4) extends into the inner cavity of the connecting shell (5).

7. A connector pressure relief assembly that allows operation under pressure according to claim 6, characterized in that: Sealing rings are provided between the connection housing (5), the plug housing (2) and the liquid collecting housing (6).

8. A connector pressure relief assembly that allows operation under pressure according to claim 1, characterized in that: A full liquid mark (17) is provided on the rod portion of the piston rod (7).

9. A connector pressure relief assembly that allows operation under pressure according to claim 1 or 8, characterized in that: The front end of the piston rod (7) and the inner cavity of the liquid collecting housing (6) are sealed via a sealing member, thereby isolating the inner cavity from the outside.

10. A connector pressure relief assembly that allows operation under pressure according to claim 1, characterized in that: A sealing rubber ring is provided between the end cover housing (8) and the liquid collecting housing (6).

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