Fluid connector

Abstract

A fluid connector includes a housing having a fluid passage, a ball valve housed within the housing, an operating member operating the ball valve to rotate, and a pin member, the operating member operating the ball valve to be rotatable between a closed position blocking the fluid passage and an open position opening the fluid passage, the front end face of the shell is provided with a containing hole for containing the pin component and an elastic component for supporting the pin component, when the fluid connector is not connected with the adaptive end connector in a matched mode, the pin component is elastically supported by the elastic component to extend out of the containing hole, and when the fluid connector abuts against the adaptive end connector and rotates to a matching hole, corresponding to the adaptive end connector, of the pin component, the elastic component extends out of the containing hole. The pin component is pressed by the elastic component to extend into the matching hole, the fluid connector comprises a limiting component located between the operating component and the pin component, and when the pin component extends into the matching hole, the operating component is not limited by the limiting component and can control the ball valve to rotate. Reliable docking between the fluid connector and the mating end connector can be achieved only through one pin member.

Description

TECHNICAL FIELD

[0001] The present application relates to a fluid connector, in particular to a simple structure and easy to manufacture fluid connector with anti-misoperation function.

BACKGROUND

[0002] The prior art refers to Chinese patent CN102459985B, which discloses a fluid connector comprising a housing, a ball valve accommodated in the housing, a handle mounted outside the housing to control the rotation of the ball valve, a detection pin provided on the housing and protruding from the front end surface of the housing in normal state, and a locking pin matched with the mating hole of the adapter connector. The handle can drive the locking pin to protrude from the front end surface of the housing, and the detection pin can control whether the locking pin and the handle can be linked through the locking member. However, the fluid connector has many elements and a complex structure.

[0003] Therefore, it is necessary to improve the existing fluid connector.

SUMMARY

[0004] The present application aims to provide a fluid connector with anti-misoperation function, which has a simple structure and reliable performance.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a fluid connector comprising a housing with a fluid passage, a ball valve with a through hole accommodated in the housing, an operating member mounted outside the housing to control the rotation of the ball valve, and a pin member, the front end of the housing is matched and connected with an adapter connector with a mating hole at the front end, the operating member controls the ball valve to rotate between the closed position of blocking the flow passage and the open position of opening the flow passage, when the ball valve is in the open position, the through hole is communicated with the fluid passage, the front end surface of the housing is provided with a receiving hole for accommodating the pin member, and an elastic member is arranged in the receiving hole to support the pin member, when the fluid connector is not matched with the adapter connector, the pin member is elastically supported by the elastic member and is in the first position protruding out of the receiving hole, when the fluid connector abuts against the adapter connector, the pin member compresses the elastic member and is in the second position retracted into the receiving hole, when the fluid connector abuts against the adapter connector and rotates to the third position where the pin member corresponds to the mating hole of the adapter connector, the pin member is pressed by the elastic member and is in the third position protruding into the mating hole, the fluid connector comprises a limiting member between the operating member and the pin member, when the pin member is in the first position and the second position, the limiting member prevents the operating member from controlling the rotation of the ball valve, and when the pin member is in the third position, the operating member can control the rotation of the ball valve without being limited by the limiting member.

[0006] Further, when the pin member is in the third position and the ball valve is rotated to the open position by the operation member, the pin member is prevented from being retracted into the accommodating hole by the limiting member.

[0007] Further, when the pin member is in the first position, the height of the pin member protruding out of the accommodating hole is a first height, and when the pin member is in the third position, the height of the pin member protruding out of the accommodating hole is a second height smaller than the first height.

[0008] Further, a first groove is recessed on the side of the pin member, the operation member is provided with a second groove, an opening is formed through the wall of the housing on the side of the accommodating hole, and the limiting member is switched between the first groove and the second groove via the opening. When the pin member is in the first position and the second position, the first groove and the second groove are staggered in the front-rear direction, and the limiting member is pushed by the part of the pin member other than the first groove to the opening and the second groove, at which time the limiting member limits the rotation of the operation member. When the pin member is in the third position, the first groove, the opening, and the second groove are aligned, at which time the operation member can be operated in rotation, and the rotation operation of the operation member causes the limiting member to be out of the second groove and located in the opening and the first groove.

[0009] Further, the limiting member is a ball, the pin member has an upper segment part protruding out of the front end surface of the housing at an upper end, a lower segment part connected to the upper segment part below the upper segment part, the diameter of the lower segment part is smaller than the diameter of the upper segment part, the diameter of the upper segment part is substantially the same as the inner diameter of the accommodating hole, the elastic member is supported below the lower segment part, and a first groove is recessed on the side of the lower segment part. When the pin member is in the first position, the limiting member is located below the first groove and is pushed by the lower segment part into the second groove. When the pin member is in the second position, the limiting member is located above the first groove and is pushed by the lower segment part into the second groove.

[0010] Further, the mating hole of the adapter end connector is provided with a guide surface, when the operation member causes the ball valve to rotate from the open position to the closed position, the first groove, the opening, and the second groove are aligned, at which time the limiting member is located in the first groove, the opening, and the second groove, and then the fluid connector is rotated, the pin member can be guided out of the mating hole by the guide surface, at which time the limiting member is pushed by the part of the pin member other than the first groove to the opening and the second groove to restore the pin member to the first position.

[0011] Further, the operation member is a handle connected to the ball valve through a columnar body to drive the ball valve to rotate, the operation member comprises a base body with a circular arc surface at one end and a handle for pressing operation integrally extended from the other end of the base body, one end of the columnar body is fixed to the base body and the other end is fixed to the ball valve, and the circular arc surface of the base body faces the opening and is provided with the second slot.

[0012] Further, the shell is provided with a wall surface opposite to the circular arc surface of the base body, the wall surface is concavely provided with a concave arc part matched with the circular arc surface, and the opening is arranged in the concave arc part.

[0013] Further, the matching hole of the adapter end connector is provided with a guide surface, when the fluid connector is rotated compared with the adapter end connector, the guide surface is used to guide the pin member to enter or exit the matching hole.

[0014] Further, the fluid connector and the adapter end connector are structurally identical, and the fluid connector has a matching hole matched with the pin member arranged on the adapter end connector.

[0015] Compared with the prior art, the fluid connector of the present application has the following beneficial effects: only one pin member is arranged in the fluid connector, the pin member is normally supported by the elastic member and is in the first position protruding out of the front end surface of the shell, the operation member is prevented from rotating by a limiting member through the state of the pin member, when the fluid connector is docked with the adapter end connector and rotated in place, the pin member is inserted into the matching hole of the adapter end connector and is in the third position protruding out of the front end surface of the shell with a height less than the first position, at this time, the operation member is not blocked by the limiting member and can be rotated to drive the ball valve to open, so that the structure of the fluid connector is simple and convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the fluid connector and the adapter end connector of the present application.

[0017] Figure 2 is a perspective view of the operation member of the fluid connector of the present application in an unopened state.

[0018] Figure 3 is a perspective view of the operation member of the fluid connector of the present application in an opened state.

[0019] Figure 4 is a perspective exploded view of the fluid connector of the present application.

[0020] Figure 5 is Figure 4 is a perspective exploded view from another angle.

[0021] Figure 6This is a partial exploded perspective view of the fluid connector of the present invention.

[0022] Figure 7 yes Figure 6 A three-dimensional exploded view from another perspective.

[0023] Figure 8 yes Figure 2 A sectional view along line AA.

[0024] Figure 9 yes Figure 2 Sectional view along line BB.

[0025] Figure 10 A cross-sectional view of the fluid connector of the present invention after it abuts against the adapter connector.

[0026] Figure 11 Is Figure 10 The diagram shows a cross-sectional view of the fluid connector after rotating it so that its pin component enters the mating hole of the adapter connector.

[0027] Figure 12 yes Figure 3 A sectional view along line CC.

[0028] Figure 13 yes Figure 3 A cross-sectional view along line DD.

Detailed Implementation Methods

[0029] To facilitate a better understanding of the purpose, structure, features, and effects of this invention, the invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0030] Please see Figures 1 to 13As shown, the present application discloses a kind of fluid connector 100, the fluid connector is used to be matched with an adapter end connector 500 to make fluid passage between two connectors communicate.The fluid connector 100 includes the shell 1 with fluid passage 10, the ball valve 2 with through hole 20 being received in the shell 1, the operating member 3 being installed outside the shell 1 and being connected to the ball valve 2 to control the rotation of the ball valve, and the pin member 4 protruding from the front end surface 11 of the shell 1 to be matched with the matching hole 501 provided in the front end of the adapter end connector 500.The fluid connector 100 and the adapter end connector 500 have the same structure, the fluid connector 100 has the matching hole 101 provided in the front end of the shell 1 in addition to the pin member 4, and the adapter end connector 500 has the pin member 502 in addition to the matching hole 501, when the fluid connector 100 and the adapter end connector 500 are matched and rotated in place, the pin member 4 of the fluid connector 100 enters the matching hole 501 of the adapter end connector 500, and the pin member 502 of the adapter end connector 500 enters the matching hole 101 of the fluid connector 100, thereby realizing the double interlocking function between the two, effectively eliminating the leakage.

[0031] The operating member 3 controls the ball valve 2 to be able to rotate between the closed position of blocking the flow passage and the open position of opening the flow passage. Figure 2 、 Figure 8 And Figure 9 As shown, when the operating member 3 is not rotated, the through hole 20 of the ball valve 2 is not communicated with the fluid passage 10, at this time, the ball valve 2 is in the closed position of blocking the fluid passage 10. Figure 3 、 Figure 12 And Figure 13 As shown, when the operating member 3 is rotated, the through hole 20 of the ball valve 2 is communicated with the fluid passage 10, at this time, the ball valve 2 is in the open position of opening the fluid passage 10.In the present application, the operating member 3 is connected and fixed to the ball valve 2 through a columnar body 5 to be able to drive the ball valve 2 to rotate.The ball valve 2 is provided with a pivoting member 6 assembled in the shell 1 on the other side corresponding to the columnar body 5, the pivoting member 6 includes a pivoting part 61 fixed to the ball valve 2 at one end and pivotably assembled in the shell 1 at the other end, and a spring 62 provided in the pivoting part 61 and supported on the shell 1, the spring 62 can make the ball valve 2 be able to stably pivot.

[0032] The front end face 11 of the housing 1 is provided with a receiving hole 110 for receiving the pin member 4, and an elastic member 7 for supporting the pin member 4 is provided in the receiving hole 110. When the fluid connector 100 is not mated with the adapter connector 500, the pin member 4 is supported by the elastic member 7 and is in a first position extending out of the receiving hole 110. When the fluid connector 100 abuts against the adapter connector 500, the pin member 4 is pressed by the adapter connector 500, thereby the pin member 4 compresses the elastic member 7 and is in a second position retracted into the receiving hole 110. When the fluid connector 100 abuts against the adapter connector 500 and rotates to the mating hole 501 of the adapter connector 500 corresponding to the pin member 4, the pin member 4 is pressed by the elastic member 7 and is in a third position extending into the mating hole 501. To achieve the above functions, the fluid connector 100 includes a limiting member 8 located between the operating member 3 and the pin member 4. When the pin member 4 is in the first and second positions, the limiting member 8 prevents the operating member 3 from controlling the rotation of the ball valve 2. When the pin member 4 is in the third position, the operating member 3 is not restricted by the limiting member 4 and can control the rotation of the ball valve 2. Furthermore, when the pin member 4 is in the third position and the ball valve 2 is rotated to the open position by the rotation of the operating member 3, the pin member 4 is prevented from retracting into the receiving hole 110 by the limiting member 8, thus preventing the ball valve 2 from being unlocked in the open state and effectively avoiding fluid loss due to improper operation.

[0033] In this invention, the pin member 4 has a first groove 401 recessed on its periphery, the operating member 3 has a second groove 301, and the accommodating hole 110 penetrates the wall 102 of the housing 1 to form an outwardly exposed opening 1021. The limiting member 8 can switch positions between the first groove 401 and the second groove 301 via the opening 1021. Specifically, the operating member 3 is a handle, comprising a base 31 with one end being an arc surface 30 and a handle 32 integrally extended from the other end of the base 31 for pressing operation. One end of the columnar body 5 is fixed to the base 31 and the other end is fixed to the ball valve 2. The arc surface 30 faces the wall 102, the second groove 301 is disposed on the arc surface 30, and the wall 102 is provided with a concave arc portion 1020 that mates with the arc surface 30. The opening 1021 is disposed within the concave arc portion 1020. When the operating member 3 is in position... Figure 8 When the ball valve 2 is in the position shown, that is, when the ball valve 2 is in Figure 9 In the unopened state shown, the second groove 301 is connected to and aligned with the opening 1021. Figure 2 , Figure 8 andFigure 9 As shown, when the pin member 4 is located at the first position and the second position, the first groove 401 and the second groove 301 are staggered in the front-rear direction, and the limiting member 8 is pushed by the part of the pin member 4 other than the first groove 401 to the opening 1021 and the second groove 301, at this time, the limiting member 8 limits the rotation of the operating member 3, so that the ball valve 2 cannot be opened. Figure 3 Figure 12 Figure 13 As shown, when the pin member 4 is located at the third position, the first groove 401, the opening 1021 and the second groove 301 are communicated and aligned with each other, and the operating member 3 can be operated in rotation, and the rotation operation of the operating member 3 drives the opening of the ball valve 2 and further drives the limiting member 8 to be located at the opening 1021 and the first groove 401 from the second groove 301.

[0034] In the present application, the limiting member 8 is a ball, the pin member 4 has an upper segment 41 located at the upper end, a lower segment 42 connected with the upper segment 41 and located below the upper segment 41, and the elastic member 7 is supported below the lower segment 42 so that the upper segment 41 protrudes out of the accommodating hole 110. The diameter of the lower segment 42 is smaller than the diameter of the upper segment 41, the diameter of the upper segment 42 is substantially the same as the inner diameter of the accommodating hole 110, and the first groove 401 is formed on the circumferential side of the lower segment 42. The diameter of the upper segment 41 is set to be substantially the same as the accommodating hole 110, so that the pin member 4 can be smoothly actuated in the accommodating hole 110, and the diameter of the lower segment 42 is set to be smaller than the inner diameter of the accommodating hole 110, so that when the limiting member 8 is separated from the first groove 401, there is a certain space between the part of the lower segment 42 other than the first groove 401 and the accommodating hole 110 to accommodate the limiting member 8. When the pin member 4 is located at the first position, the limiting member 8 is located below the first groove 401 and is pushed into the second groove 301 by the lower segment 42, and the height of the pin member 4 protruding out of the accommodating hole 110 is a first height H1, when the pin member 4 is located at the second position, the limiting member 8 is located above the first groove 401 and is pushed into the second groove 301 by the lower segment 42, and the height of the pin member 4 protruding out of the accommodating hole 110 is a second height H2 which is smaller than the first height H1. In addition, in order to be reliably supported by the elastic member 7, the pin member 4 is provided with a base 43 at the lower end of the lower segment 42, the diameter of the base 43 is substantially the same as the inner diameter of the accommodating hole 110, and the elastic member 7 is supported on the lower surface of the base 43.

[0035] ​​The matching hole 501 of the adapter connector 500 is provided with a guide surface 5011. When the ball valve 2 is in the open position, pressing the handle 32 can drive the operating member 3 to rotate the ball valve 2 from the open position to the closed position, and the first groove 401, the opening 1021 and the second groove 301 return to the corresponding state of being in communication with each other. At this time, the limiting member 8 is located in the first groove 401, the opening 1021 and the second groove 301. Then, reverse rotating the fluid connector 100, the pin member 4 can be guided by the guide surface 5011 to compress the elastic member 7 to disengage from the matching hole 501. At the same time, the limiting member 8 is disengaged from the first groove 401 and is re-pushed by the lower segment 42 of the pin member 4 outside the first groove 401 to the opening 1021 and the second groove 301 to make the pin member 4 return to the first position. The adapter connector 500 also simultaneously performs the above operation to make the pin member 502 disengage through the guide surface 1011 of the matching hole 101 of the fluid connector 100. It should be noted that the guide surface 5011 is also beneficial to guide the pin member 4 into the matching hole 501.

[0036] It is worth pointing out that the fluid connector 100 of the present application can also be matched with an adapter connector with different structure, as long as the matching hole of the adapter connector matched can allow the pin member 4 of the fluid connector 100 to be inserted and be in the third position to unlock the ball valve 2, and the pin member of the adapter connector can be inserted into the matching hole 101 of the fluid connector 100 to achieve unlocking the ball valve. It should be noted that the above is only the preferred embodiment of the present application and should not limit the scope of the present application. That is, any simple equivalent changes and modifications made according to the claims and the content of the present application should still be within the scope of the present application.

Claims

1. A fluid connector comprising a housing having a fluid passage, a ball valve provided with a through hole and housed in the housing, an operating member mounted outside the housing to operate rotation of the ball valve, and a pin member, the front end of the housing being connected to a mating end connector having a mating hole at the front end, the operating member operating the ball valve to enable rotation between a closed position blocking the fluid passage and an open position opening the fluid passage, the through hole being in communication with the fluid passage when the ball valve is in the open position, a receiving hole for receiving the pin member being provided on the front end face of the housing, characterized in that: The accommodating hole is provided with an elastic member supporting the pin member, when the fluid connector is not connected with the mating connector, the pin member is elastically supported by the elastic member to be in a first position protruding out of the accommodating hole, when the fluid connector abuts against the mating connector, the pin member compresses the elastic member to be in a second position retracting into the accommodating hole, when the fluid connector abuts against the mating connector and rotates to the matching hole of the mating connector corresponding to the pin member, the pin member is pressed by the elastic member to be in a third position protruding into the matching hole, the fluid connector comprises a limiting member between the operating member and the pin member, when the pin member is in the first position and the second position, the limiting member prevents the operating member from operating the rotation of the ball valve, when the pin member is in the third position, the operating member can operate the rotation of the ball valve without being limited by the limiting member.

2. The fluid connector of claim 1, wherein: When the pin member is in the third position and operates the rotation of the ball valve to the open position by the operating member, the pin member cannot retract into the accommodating hole due to the prevention of the limiting member.

3. The fluid connector of claim 1, wherein: When the pin member is in the first position, the height of the pin member protruding out of the accommodating hole is a first height, when the pin member is in the third position, the height of the pin member protruding out of the accommodating hole is a second height smaller than the first height.

4. The fluid connector of claim 1, wherein: The periphery of the pin member is recessed with a first groove, the operating member is provided with a second groove, the periphery of the accommodating hole is formed with an opening through the wall of the shell, the limiting member can switch positions between the first groove and the second groove through the opening, when the pin member is in the first position and the second position, the first groove and the second groove are staggered in the front-rear direction, the limiting member is pushed by the part of the pin member other than the first groove to the opening and the second groove, at this time, the limiting member limits the rotation of the operating member, when the pin member is in the third position, the first groove, the opening and the second groove are aligned, at this time, the operating member can be operated in rotation, the rotation operation of the operating member drives the limiting member to be out of the second groove and be located in the opening and the first groove.

5. The fluid connector of claim 4, wherein: The limiting member is a ball, the pin member has an upper segment part protruding out of the front surface of the shell at the upper end, a lower segment part connected with the upper segment part below the upper segment part, the diameter of the lower segment part is smaller than the diameter of the upper segment part, the diameter of the upper segment part is substantially the same as the inner diameter of the accommodating hole, the elastic member is supported below the lower segment part, the periphery of the lower segment part is recessed to form the first groove, when the pin member is in the first position, the limiting member is located below the first groove and is pushed into the second groove by the lower segment part, when the pin member is in the second position, the limiting member is located above the first groove and is pushed into the second groove by the lower segment part.

6. The fluid connector of claim 4, wherein: The matching hole of the adapter end connector is provided with a guide surface, when the operation member drives the ball valve to rotate from the open position to the closed position, the first groove, the opening and the second groove are aligned, at this time the limiting member is located in the first groove, the opening and the second groove, and then the fluid connector is rotated, the pin member can be guided out of the matching hole by the guide surface, at this time the limiting member is pushed out of the first groove by the part of the pin member other than the first groove to the opening and the second groove to make the pin member return to the first position.

7. The fluid connector of claim 4, wherein: The operation member is a handle connected to the ball valve by a columnar body to drive the ball valve to rotate, the operation member includes a base body with a circular arc surface at one end and a handle for pressing operation integrally extended from the other end of the base body, one end of the columnar body is fixed to the base body and the other end is fixed to the ball valve, the circular arc surface of the base body faces the opening and is provided with the second groove.

8. The fluid connector of claim 7, wherein: The shell is provided with a wall surface opposite to the circular arc surface of the base body, the wall surface is concavely provided with a concave arc part matched with the circular arc surface, and the opening is arranged in the concave arc part.

9. The fluid connector of claim 1, wherein: The matching hole of the adapter end connector is provided with a guide surface, when the operation member drives the ball valve to rotate from the open position to the closed position, the first groove, the opening and the second groove are aligned, at this time the limiting member is located in the first groove, the opening and the second groove, and then the fluid connector is rotated, the pin member can be guided out of the matching hole by the guide surface, at this time the limiting member is pushed out of the first groove by the part of the pin member other than the first groove to the opening and the second groove to make the pin member return to the first position.

10. The fluid connector of claim 1, wherein: The fluid connector and the adapter end connector have the same structure, and the fluid connector has a matching hole matched with the pin member arranged on the adapter end connector.

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