Fluid connection device

Abstract

A fluid connection device includes a first body and a second body, the first body comprising a first housing, a sleeve assembly, a first valve body and a first elastic member, the second body having a second passage, one end of the second body being insertable into the first passage; wherein the sleeve assembly is movable along the reference axis relative to the first housing, when the second body is inserted into the first passage and the sleeve assembly is at a first position, the first valve body closes a first opening of the sleeve assembly; when the sleeve assembly moves towards the second body to a second position, the second body pushes against the first valve body through the first opening to compress the first elastic member, so that the first valve body is separated from and opens the first opening, the first passage and the second passage are in communication.

Description

Technical Field

[0001] This invention relates to a fluid connection device; more particularly, to a fluid connection device that is easy to operate. Background Technology

[0002] Fluid connection devices are known to be used to connect two different devices to complete, for example, the transfer of gas or liquid. For instance, a fluid connection device can be used to transport the fluid required for semiconductor manufacturing from a liquid output source to a storage tank. The fluid connection device can serve as a connection device between the output source and the storage tank to output fluid from the output source to the storage tank.

[0003] However, existing fluid connection devices are prone to improper connection and leakage problems when connected to other devices due to improper operation. Therefore, existing fluid connection devices still need improvement. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a fluid connection device that is easy for users to operate and is less prone to leakage.

[0005] To achieve the above objectives, the present invention provides a fluid connection device comprising a first body and a second body. The first body includes a first housing, a sleeve assembly, a first valve body, and a first elastic member. The first housing has a first channel, the sleeve assembly is disposed in the first channel, the first valve body is disposed in the sleeve assembly, the sleeve assembly has a first convex wall and a second convex wall protruding circumferentially from the inner wall of the sleeve assembly, the first convex wall forming a first opening around the sleeve assembly, the first convex wall and the second convex wall being arranged at a distance on a reference axis, the first valve body being disposed between the first convex wall and the second convex wall, one end of the first elastic member abutting against the second convex wall, and the other end of the first elastic member... The first valve body has a second body with a second channel, and one end of the second body can be inserted into the first channel. The sleeve assembly is movable relative to the first housing along the reference axis. When the second body is inserted into the first channel and the sleeve assembly is in a first position, the first valve body closes the first opening. When the sleeve assembly moves toward the second body and is in a second position, the second body passes through the first opening and pushes against the first valve body to compress the first elastic element, causing the first valve body to disengage and open the first opening. The first channel communicates with the second channel.

[0006] The advantage of this invention is that, when connecting the second body to the first body, the sleeve assembly can be moved to the first position first, and then the second body can be inserted into the first channel. At this time, because the first valve body closes the first opening, the first channel and the second channel will not be connected, which can prevent premature fluid leakage. After the second body is confirmed to be connected to the first body, the sleeve assembly can be moved to the second position. At this time, the first valve body moves to the position of contact with the second body and is pushed away from the first opening by the second body, so that the first channel and the second channel are connected, thereby enabling fluid transmission. Conversely, when detaching the second body from the first body, the sleeve assembly can be moved to the first position first to disconnect the first channel from the second channel, and then the second body can be detached from the first body. In this way, it is not only convenient for the user to operate, but also avoids liquid leakage when assembling or disassembling the second body. Attached Figure Description

[0007] Figure 1 This is a perspective view of a fluid connection device according to a preferred embodiment of the present invention.

[0008] Figure 2 This is an exploded view of some components of the fluid connection device according to the preferred embodiment described above.

[0009] Figure 3 This is an exploded view of some components of the fluid connection device according to the preferred embodiment described above.

[0010] Figure 4 This is a top view of the fluid connection device according to the preferred embodiment described above.

[0011] Figure 5 for Figure 4 Sectional view in direction 5-5.

[0012] Figure 6 for Figure 4 Sectional view in direction 5-5.

[0013] Figure 7 This is a cross-sectional view of some components of the fluid connection device according to the preferred embodiment described above.

[0014] Explanation of reference numerals in the attached figures 1: Fluid connection device 10: The First Subject 101: Locking slot 101a: Gap 101b: Rotary groove 12: First shell 121: First Passage 121a: First paragraph 121b: Second paragraph 122: First nozzle 123: Second nozzle 124: Pipeline 125: Cleaning nozzle 126: Drain pipe joint 14: Sleeve assembly 141: First Sleeve 141a: Slot 142: Second sleeve 143: Third sleeve 142a: Ring-shaped card abutment 14a: First convex wall 14b: Second convex wall 14c: First opening 14d: Annular partition 16: First valve body 18: First elastic element 20: Second Subject 201: Second Channel 202: Card assembly 22: Second shell 22a: Third convex wall 22b: Fourth convex wall 22c: Second opening 24: Second valve body 26: Second elastic element A: Reference axis P1: First position P2: Second position R1: First air chamber R2: Second air chamber Detailed Implementation To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 7 The diagram shows a preferred embodiment of a fluid connection device 1 according to the present invention. The fluid connection device 1 includes a first body 10 and a second body 20. One end of the first body 10 is used to connect to an external device, such as a liquid storage tank, and the other end of the first body 10 is used to connect to the second body 20. One end of the second body 20 is used to connect to another external device, such as a liquid transport vehicle, and the other end of the second body 20 is used to connect to the first body 10.

[0015] As shown in Figure 5, the first main body 10 includes a first housing 12, a sleeve assembly 14, a first valve body 16, and a first elastic member 18. The first housing 12 has a first channel 121 inside. The sleeve assembly 14 is disposed in the first channel 121. The first valve body 16 is disposed in the sleeve assembly 14. The sleeve assembly 14 has a first convex wall 14a and a second convex wall 14b protruding circumferentially from the inner wall of the sleeve assembly 14. The first convex wall 14a surrounds to form a first opening 14c. The first convex wall 14a and the second convex wall 14b are arranged at a distance on a reference axis A. The first valve body 16 is disposed between the first convex wall 14a and the second convex wall 14b. One end of the first elastic member 18 abuts against the second convex wall 14b, and the other end of the first elastic member 18 abuts against the first valve body 16. The first elastic member 18 provides an elastic force to close the first opening 14c at one end of the first valve body 16.

[0016] like Figure 5 As shown, the second body 20 has a second channel 201, one end of the second body 20 can be inserted into the first channel 121, wherein the sleeve assembly 14 is movable relative to the first housing 12 along the reference axis A; when the second body 20 is inserted into the first channel 121 and the sleeve assembly 14 is as follows... Figure 5 When the valve body 16 is in a first position P1, it is pushed against the first opening 14c by the first elastic member 18, thereby closing the first opening 14c; when the sleeve assembly 14 moves towards the second body 20, as shown... Figure 6 When the second body 20 is in a second position P2, it passes through the first opening 14c and pushes against the first valve body 16 to compress the first elastic member 18, causing the first valve body 16 to disengage and open the first opening 14c, and the first channel 121 communicates with the second channel 201.

[0017] To further explain, such as Figure 5 As shown, the outer wall of the sleeve assembly 14 has an annular partition 14d, which abuts against the interior of the first housing 12. The annular partition 14d divides the space between the first housing 12 and the sleeve assembly 14 into a first air chamber R1 and a second air chamber R2. The first air chamber R1 and the second air chamber R2 are arranged on the reference axis A. The first housing 12 has a first nozzle 122 and a second nozzle 123. The first nozzle 122 communicates with the first air chamber R1, and the second nozzle 123 communicates with the second air chamber R2.

[0018] Therefore, when the sleeve assembly 14 is located at the first position P1, gas can be input from the outside into the second air chamber R2 through the second nozzle 123, so that the air pressure in the second air chamber R2 is greater than the air pressure in the first air chamber R1, thereby pushing the annular partition 14d of the sleeve assembly 14 and moving the sleeve assembly 14 to the second position P2; conversely, when the sleeve assembly 14 is located at the second position P2, gas can be input from the outside into the first air chamber R1 through the first nozzle 122, so that the air pressure in the first air chamber R1 is greater than the air pressure in the second air chamber R2, thereby pushing the annular partition 14d of the sleeve assembly 14 and moving the sleeve assembly 14 to the first position P1. In this embodiment, the sleeve assembly 14 is actuated by air pressure; in other embodiments, it is possible to actuate the sleeve assembly 14 by other means.

[0019] Please cooperate. Figure 5 The sleeve assembly 14 includes a first sleeve 141, a second sleeve 142, and a third sleeve 143 connected together. The first sleeve 141 has a slot 141a on the side facing the second body 20 and a first protruding wall 14a on the opposite side. The second body 20 can be inserted into the slot 141a. The second sleeve 142 is partially inserted into the first sleeve 141 and has a second protruding wall 14b. The third sleeve 143 has the annular partition 14d, and the second sleeve 142 passes through the third sleeve 143. The first housing 12 has a pipe 124 inside, the second sleeve 142 passes through the pipe 124, and the third sleeve 143 is sleeved outside the pipe 124. Thus, when the sleeve assembly 14 moves, it can move axially along the guide of the pipe 124 on the reference axis A.

[0020] Furthermore, the outer wall of the second sleeve 142 has an annular locking portion 142a. When the sleeve assembly 14 is located in the first position P1, the annular locking portion 142a abuts against the opening of the pipe 124. When the sleeve assembly 14 is located in the second position P2, the annular locking portion 142a disengages from the opening of the pipe 124, and the port of the first sleeve 141 abuts against the inner wall of the first housing 12, thereby limiting the displacement distance of the sleeve assembly 14.

[0021] Please cooperate. Figure 5The second main body 20 includes a second housing 22, a second valve body 24, and a second elastic member 26. The second housing 22 has the second channel 201 and a third convex wall 22a and a fourth convex wall 22b protruding circumferentially from the inner wall. The third convex wall 22a forms a second opening 22c. The third convex wall 22a and the fourth convex wall 22b are arranged at a distance on the reference axis A. The second valve body 24 is disposed between the third convex wall 22a and the fourth convex wall 22b. One end of the second elastic member 26 abuts against the fourth convex wall 22b, and the other end of the second elastic member 26 abuts against the second valve body 24. The second elastic member 26 provides an elastic force to push against the second valve body 24, so that one end of the second valve body 24 closes the second opening 22c.

[0022] Therefore, when the second body 20 is not inserted into the first channel 121 or as Figure 5 When the second main body 20 is inserted into the first channel 121 and the sleeve assembly 14 is located at the first position P1, the second valve body 24 is pushed against the second opening 22c by the second elastic member 26, thereby closing the second opening 22c; and as Figure 6 As shown, when the sleeve assembly 14 moves toward the second body 20 and is located at the second position P2, the portion of the second valve body 24 protruding from the second opening 22c abuts against the portion of the first valve body 16 protruding from the first opening 14c, causing the second elastic member 26 to be compressed, thereby causing the second valve body 24 to disengage and open the second opening 22c, thus connecting the first channel 121 with the second channel 201.

[0023] Furthermore, as Figure 2 and Figure 3 As shown, the outer peripheral wall of the second body 20 has a plurality of circumferentially arranged engaging members 202, and the inner wall of the first channel 121 has a plurality of engaging grooves 101 corresponding to the plurality of engaging members 202. Each engaging groove 101 has a notch 101a and a rotating groove 101b that are connected to each other. Each engaging member 202 can enter each rotating groove 101b through the notch 101a and rotate along the rotating groove 101b with the reference axis A as the center, so that each engaging member 202 is correspondingly accommodated in each rotating groove 101b. When each engaging member 202 is accommodated in the rotating groove 101b, the movement of each engaging member 202 is restricted by the rotating groove 101b in the direction of the reference axis A, so that the second body 20 can be stably coupled to the first body 10, and the second body 20 is prevented from slipping and leaking during liquid transmission.

[0024] To further explain, such as Figure 5 and 7 As shown, the first channel 121 includes a first segment 121a and a second segment 121b. When the sleeve assembly 14 is located at the first position P1, the first segment 121a and the second segment 121b are not connected. The second body 20 is partially housed in the second segment 121b. The first housing 12 has a cleaning nozzle 125 and a drain pipe connector 126 that are connected to the second segment 121b. Thus, when the first segment 121a and the second segment 121b are not connected, gas or liquid can be introduced from the outside through the cleaning nozzle 125 to clean the second segment 121b, and the gas or liquid introduced into the second segment 121b can be discharged from the drain pipe connector 126.

[0025] In summary, the advantage of this invention is that, when the second body 20 is to be connected to the first body 10, the sleeve assembly 14 can be moved to the first position P1 first, and then the second body 20 can be inserted into the first channel 121. At this time, because the first valve body 16 closes the first opening 14c and the second valve body 24 closes the second opening 22c, the first channel 121 and the second channel 201 will not be connected, thus preventing premature fluid leakage. Once the second body 20 is confirmed to be connected to the first body 10, the sleeve assembly 14 can be moved to the second position P2. At this time, the first valve body 16 moves to a position contacting the second valve body 24 of the second body 20, and the first valve body is pushed away from the first opening 14c by the second valve body 24. The second valve body is pushed away from the second opening 22c by the first valve body 16, causing the first channel 121 to connect with the second channel 201 for fluid transmission. Conversely, when the second body 20 is to be removed from the first body 10, the sleeve assembly 14 can be moved to the first position P1. The first valve body is removed from the second valve body 24 and is pushed away by the first elastic member to close the first opening 14c. The second valve body is removed from the push of the first valve body 16 and is pushed away by the second elastic member to close the second opening 22c, causing the first channel 121 to disconnect from the second channel 201. At this time, the second body 20 can be removed from the first body 10. This not only facilitates user operation but also avoids liquid leakage during the disassembly and assembly of the second body 20.

[0026] The above description is only a preferred embodiment of the present invention. Any equivalent changes made by applying the present invention specification and the claims should be included within the patent scope of the present invention.

Claims

1. A fluid connection device, characterized in that, Include: A first main body includes a first housing, a sleeve assembly, a first valve body, and a first elastic element. The first housing has a first channel, the sleeve assembly is disposed in the first channel, the first valve body is disposed in the sleeve assembly, the sleeve assembly has a first convex wall and a second convex wall protruding circumferentially from the inner wall of the sleeve assembly, the first convex wall surrounds to form a first opening, the first convex wall and the second convex wall are spaced apart on a reference axis, the first valve body is disposed between the first convex wall and the second convex wall, one end of the first elastic element abuts against the second convex wall, the other end of the first elastic element abuts against the first valve body, and the first elastic element provides an elastic force to close the first opening at one end of the first valve body. as well as A second main body having a second channel, one end of the second main body being able to be inserted into the first channel; The sleeve assembly is movable relative to the first housing along the reference axis. When the second body is inserted into the first channel and the sleeve assembly is in a first position, the first valve body closes the first opening. When the sleeve assembly moves toward the second body and is in a second position, the second body passes through the first opening and pushes against the first valve body to compress the first elastic element, causing the first valve body to disengage and open the first opening, and the first channel communicates with the second channel.

2. The fluid connection device as claimed in claim 1, wherein, The outer wall of the sleeve assembly has an annular partition, which abuts against the interior of the first housing. The annular partition divides the space between the first housing and the sleeve assembly into a first air chamber and a second air chamber. The first air chamber and the second air chamber are arranged on the reference axis. The first housing has a first nozzle and a second nozzle. The first nozzle communicates with the first air chamber, and the second nozzle communicates with the second air chamber.

3. The fluid connection device as described in claim 2, wherein, The sleeve assembly includes a first sleeve, a second sleeve, and a third sleeve connected to each other. The first sleeve has a slot on one side and a first convex wall on the other side. The second body can be inserted into the slot. The second sleeve is partially inserted into the first sleeve and has the second convex wall. The third sleeve has the annular partition and the second sleeve passes through the third sleeve.

4. The fluid connection device as claimed in claim 3, wherein, The first housing has a pipe inside, the second sleeve portion passes through the pipe, and the third sleeve is fitted outside the pipe.

5. The fluid connection device as claimed in claim 4, wherein, The outer wall of the second sleeve has an annular locking portion. When the sleeve assembly is in the first position, the annular locking portion abuts against the pipe opening. When the sleeve assembly is in the second position, the annular locking portion disengages from the pipe opening.

6. The fluid connection device as claimed in claim 1, wherein, The second main body includes a second housing, a second valve body, and a second elastic member. The second housing has the second channel and a third convex wall and a fourth convex wall protruding circumferentially from the inner wall. The third convex wall surrounds to form a second opening. The third convex wall and the fourth convex wall are arranged at a distance on the reference axis. The second valve body is disposed between the third convex wall and the fourth convex wall. One end of the second elastic member abuts against the fourth convex wall, and the other end of the second elastic member abuts against the second valve body. The second elastic member provides an elastic force to close the second opening at one end of the second valve body.

7. The fluid connection device as claimed in claim 1, wherein, The outer peripheral wall of the second main body has a plurality of circumferentially arranged engaging members, and the inner wall of the first channel has a plurality of engaging grooves corresponding to the plurality of engaging members.

8. The fluid connection device as claimed in claim 7, wherein, Each of the engagement slots has a notch and a rotating groove that are connected to each other. Each of the engagement members can enter each of the rotating grooves through the notch and rotate along the rotating grooves to be accommodated in the rotating grooves. When each of the engagement members is accommodated in the rotating grooves, the movement of each of the engagement members is restricted by the rotating grooves in the direction of the reference axis.

9. The fluid connection device as claimed in claim 1, wherein, The first channel includes a first section and a second section. When the sleeve assembly is in the first position, the first section and the second section are not connected. The second main body is housed in the second section. The first housing has a cleaning nozzle and a drain pipe connector that are connected to the second section.

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