Fluid connector

Abstract

The utility model discloses a fluid connector which is characterized in that a movable valve, a spring and a supporting lantern ring are arranged in a pipe body from front to back, the supporting lantern ring is clamped and fixed in a rear opening of the pipe body through an elastic clamping piece, and therefore an elastic supporting piece does not need to be used; the elastic clamping piece is located on the outer side of the lantern ring body, so that the lantern ring body is separated from the fluid pipeline of the pipe body, the elastic clamping piece cannot be soaked in fluid for a long time, the service life of the elastic clamping piece cannot be shortened, and compared with a fluid connector with an elastic supporting piece, the fluid connector has the advantage of being long in service life.

Description

TECHNICAL FIELD

[0001] The utility model relates to a connector, especially a fluid connector. BACKGROUND

[0002] As shown in Figure 5 There is a fluid connector 50 comprising a pipe body 51, a movable valve 52 and a spring 53; wherein the movable valve 52 is located at a front opening 511 of the pipe body 51, and two ends of the spring 53 are respectively abutted against the movable valve 52 and a rear opening 512 of the pipe body 51. When the fluid connector 50 is inserted into another matched fluid connector (not shown in the figure), the movable valve 52 will move towards the rear opening 512 and compress the spring 53, so that the movable valve 52 no longer seals the front opening 511, and the front opening 511 will be communicated with the rear opening 512 to allow fluid to flow therethrough.

[0003] In order to improve the insertion and extraction times of the fluid connector 50, the stability of the spring 53 is very important, and a stable structure must be provided for the spring 53 to abut against the rear opening 512, as shown in Figure 5 The pipe body 51 is formed with a concave ring portion 513 near the rear opening 512, and a resilient support member 60 is inserted from the rear opening 512, and a plurality of elastic arms 61 extending from the rear end thereof are compressed inward to smoothly pass through the rear opening 512, and when continuously passing through the concave ring portion 513, the elastic arms 61 are opened outward to be clamped in the concave ring portion 513, so that the resilient support member 60 is fixed in the fluid passage 510 of the pipe body 51, and the front end of the resilient support member 60 is concave to form an annular groove 62 to accommodate one end of the spring 53, thereby stably supporting the spring 53 in the pipe body 51.

[0004] Although the resilient support member disclosed in the above can stabilize the spring in the pipe body, the elastic material is easy to be brittle and lose elasticity when immersed in fluid for a long time, and in addition, the spring will continuously apply pressure to the resilient support member during the insertion and extraction process, which further accelerates the damage of the resilient support member, and thus relatively shortens the service life of the fluid connector. SUMMARY

[0005] In view of the short service life of the existing fluid connector, the utility model provides a fluid connector which is more stable in structure and can be used for a long time.

[0006] The main technical means used to achieve the above purpose is that the fluid connector comprises:

[0007] a pipe body having a first front opening, a fluid passage and a first rear opening connected together from front to rear;

[0008] a support sleeve ring located in the first rear opening of the pipe body and comprising:

[0009] a sleeve body, an inner diameter of which is smaller than an inner diameter of the fluid channel; and

[0010] a resilient engaging member, located between an outer wall of the sleeve body and an inner wall of the first rear opening of the pipe body, to fix the sleeve body in the first rear opening of the pipe body;

[0011] a movable valve, slidingly arranged in the fluid channel of the pipe body, and selectively closing the first front opening of the pipe body; and

[0012] a spring, arranged in the fluid channel of the pipe body, one end of which abuts against the movable valve, and the other end of which abuts against the front end surface of the support sleeve.

[0013] As can be seen from the above description, the fluid connector mainly uses a non-elastic support sleeve, which is fixed in the first rear opening of the pipe body by a resilient engaging member. Since the resilient engaging member is located outside the sleeve body, the sleeve body is separated from the fluid channel of the pipe body. Therefore, the resilient engaging member is not soaked in the fluid for a long time, and the service life of the fluid connector is longer than that of a fluid connector using an elastic support member.

[0014] In an embodiment of the fluid connector, the outer wall of the sleeve body is partially formed as a concave ring portion; the inner wall of the first rear opening of the pipe body is formed with a ring groove corresponding to the concave ring portion, and the width of the ring groove matches the thickness of the resilient engaging member; and the resilient engaging member is partially engaged in the ring groove.

[0015] In an embodiment of the fluid connector, the resilient engaging member is a C-shaped buckle or a coil buckle; and the sleeve body is made of metal.

[0016] In an embodiment of the fluid connector, the first rear opening has a larger diameter than the inner diameter of the fluid channel, so as to form a stop wall at the junction of the first rear opening and the fluid channel; and the front end surface of the sleeve body is partially abutted against the stop wall of the pipe body.

[0017] In an embodiment of the fluid connector, the first front opening of the pipe body has a smaller diameter than the inner diameter of the fluid channel, and the inner diameter of the sleeve body is smaller than the diameter of the first front opening; and the movable valve integrally comprises, from front to back:

[0018] a head portion, matching the first front opening;

[0019] a body portion, matching the fluid channel; and

[0020] a tail portion, penetrating into the spring.

[0021] In one embodiment of the fluid connector, a first sealing ring is sleeved on the head of the movable valve to seal the first front opening.

[0022] In one embodiment of the fluid connector, an outer wall surface of the pipe body is integrally formed from front to back with an outer engagement portion, a protruding portion, an outer thread, and a second sealing ring, which is located between the protruding portion and the outer thread.

[0023] The main technical means used to achieve the above-mentioned purpose is that the other fluid connector comprises:

[0024] A pipe body has a first front opening, a fluid channel, and a first rear opening in sequence; wherein the first rear opening has a larger diameter than the inner diameter of the fluid channel to form a stop wall at the junction of the first rear opening and the fluid channel;

[0025] A support collar is located in the first rear opening of the pipe body and comprises:

[0026] A collar body has an inner diameter smaller than the inner diameter of the fluid channel, and a front end surface of the collar body is partially stopped on the stop wall of the pipe body; and

[0027] A first thread is integrally formed on an outer ring wall of the collar body to be screwed on an inner wall surface of the first rear opening of the pipe body;

[0028] A movable valve is slidably arranged in the fluid channel of the pipe body and selectively closes the first front opening of the pipe body; and

[0029] A spring is arranged in the fluid channel of the pipe body, one end of which is stopped on the movable valve, and the other end is stopped on the front end surface of the collar body of the support collar.

[0030] As can be seen from the above description, the fluid connector of the utility model mainly uses a non-elastic support collar, which is directly screwed on the inner wall surface of the first rear opening of the pipe body by the first thread, and the first thread is located on the outside of the collar body, so the first thread is also separated from the fluid channel of the pipe body by the collar body; therefore, the first thread will not be soaked in the fluid for a long time, which shortens its service life, and the support collar is screwed on the inner wall surface of the first rear opening of the pipe body by the first thread, which has a large indirect engagement area and has a more stable combination effect, compared with the fluid connector using an elastic support member, which has a longer service life.

[0031] In one embodiment of the fluid connector described above, the inner wall surface of the first rear opening of the tube body forms an internal thread; and the first thread of the support collar is an external thread to engage with the internal thread of the tube body.

[0032] In one embodiment of the fluid connector described above, the diameter of the first front opening of the tube body is smaller than the inner diameter of the fluid conduit, and the inner diameter of the collar body is smaller than the diameter of the first front opening; and the movable valve is integrally comprised from front to back:

[0033] A head, matching the first front opening;

[0034] A body, matching the fluid conduit; and

[0035] One end is inserted into the spring.

[0036] In one embodiment of the fluid connector described above, a first sealing ring is further included, which is fitted onto the head of the movable valve to seal the first front opening.

[0037] In one embodiment of the fluid connector described above, the support collar is made of metal.

[0038] In one embodiment of the fluid connector described above, an outer wall surface of the tube body is integrally formed from front to back with an outer engaging portion, a protrusion, a second external thread, and a second sealing ring, the second sealing ring being located between the protrusion and the second external thread.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0040] Figure 1 : An exploded perspective view of the first embodiment of the fluid connector of this utility model.

[0041] Figure 2 : Figure 1 A combination of cross-sectional views.

[0042] Figure 3 : An exploded perspective view of a second embodiment of the fluid connector of this utility model.

[0043] Figure 4 : Figure 3 A combination of cross-sectional views.

[0044] Figure 5 : A cross-sectional view of a combination of fluid connectors.

[0045] Among them, the attached reference numerals

[0046] 1a, 1b: Fluid connectors

[0047] 10: tube body

[0048] 12: first front opening

[0049] 13: fluid conduit

[0050] 14: first rear opening

[0051] 141: stop wall

[0052] 142: inner wall surface

[0053] 143: ring groove

[0054] 144: thread

[0055] 15: outer engagement portion

[0056] 16: protrusion

[0057] 17: external thread

[0058] 18: second sealing ring

[0059] 20: support collar

[0060] 21: collar body

[0061] 210: outer ring wall

[0062] 211: second front opening

[0063] 212: second rear opening

[0064] 213: front end surface

[0065] 214: recessed ring portion

[0066] 215: first thread

[0067] 22: resilient engagement member

[0068] 30: movable valve

[0069] 31: head

[0070] 32: body

[0071] 33: tail

[0072] 34: first sealing ring

[0073] 40: spring

[0074] 41: end

[0075] 42: end

[0076] 50: fluid connector

[0077] 51: tube body

[0078] 510: fluid passage

[0079] 511: front opening

[0080] 512: rear opening

[0081] 513: concave ring portion

[0082] 60: elastic support

[0083] 61: elastic arm

[0084] 62: annular groove

[0085] 52: movable valve

[0086] 53: spring DETAILED DESCRIPTION

[0087] The embodiments of the present application will be described in detail below with reference to the drawings. In addition to the detailed description, the present application can be widely applied to other embodiments, and any easy replacement, modification, equivalent change of the embodiments is included in the scope of the present application, and is subject to the claims. In the description of the specification, in order to enable the reader to have a more complete understanding of the present application, many specific details and implementation examples are provided; however, these specific details and implementation examples should not be regarded as limitations of the present application. In addition, well-known steps or elements are not described in detail to avoid unnecessary limitations of the present application.

[0088] First, refer to Figure 1 Fig. 1a, which is a first embodiment of the fluid connector 1a of the present application, which includes a tube body 10, a support sleeve 20, a movable valve 30, and a spring 40.

[0089] Please refer to Figure 2As shown, the pipe body 10 has a first front opening 12, a fluid channel 13 and a first rear opening 14 in sequence from front to rear. In the embodiment, the diameter R1 of the first front opening 12 is smaller than the inner diameter R2 of the fluid channel 13 (R1 < R2). In the embodiment, the diameter R4 of the first rear opening 14 is not smaller than the inner diameter R2 of the fluid channel 13, and in the embodiment, the diameter R4 of the first rear opening 14 is larger than the inner diameter R2 of the fluid channel 13, so that a stop wall 141 is formed at the junction of the first rear opening 14 and the fluid channel 13. In an embodiment, the pipe body 10 is used for a male fluid connector, so that when inserted into a matching female fluid connector (not shown), the latching structure of the female fluid connector can be latched to ensure stable insertion. Therefore, the pipe body 10 is integrally formed from front to rear with an outer clamping portion 15, a protruding portion 16, an outer thread 17 and a second sealing ring 18, and the second sealing ring 18 is located between the protruding portion 16 and the outer thread 17.

[0090] The support collar 20 is located in the first rear opening 14 of the pipe body 10 and includes a collar body 21 and a resilient clamping member 22. The collar body 21 has a second front opening 211 and a second rear opening 212 opposite to each other. The inner diameter R3 of the collar body 21 is smaller than the inner diameter R2 of the fluid channel 13 and the diameter R1 of the first front opening 12 (R3 < R1 < R2), and the maximum outer diameter matches the diameter R4 of the first rear opening 14. In the embodiment, a front end face 213 of the collar body 21 is partially stopped by the stop wall 141 of the pipe body 10. In the embodiment, an outer ring wall 210 of the collar body 21 partially forms a concave ring portion 214, and an inner wall face 142 of the first rear opening 14 of the pipe body 10 forms a ring groove 143 corresponding to the concave ring portion 214, and the width of the ring groove 143 matches the thickness of the resilient clamping member 22; in this way, the resilient clamping member 22 can be partially clamped in the ring groove 143 to stably fix the collar body 21 in the first rear opening 14 of the pipe body 10. In addition, the collar body 21 is made of metal.

[0091] The resilient clamping member 22 is partially clamped in the inner wall face 142 of the first rear opening 14 of the pipe body 10 and is stopped at a rear end face of the stop wall 141 of the support collar 20; in the embodiment, the resilient clamping member 22 can be a C-shaped clasp or a coil clasp.

[0092] The movable valve 30 is slidably arranged in the fluid channel 13 of the pipe body 10 and selectively closes the first front opening 12 of the pipe body 10. In this embodiment, the movable valve 30 comprises a head 31 matching the first front opening 12, a body 32 matching the fluid channel 13, and a tail 33 penetrating into the spring 40. In one embodiment, the head 31 is sleeved with a first sealing ring 34, which is arranged between the head 31 and the first front opening 12 when the head 31 is positioned at the first front opening 12, thereby providing better sealing effect.

[0093] The spring 40 is arranged in the fluid channel 13 of the pipe body 10, one end 41 of which abuts against the movable valve 30, specifically, the body 32 of the movable valve 30, and the other end 42 of the spring 40 abuts against the front end face 213 of the stop wall 141 of the support sleeve 20.

[0094] As can be seen from the first embodiment of the fluid connector 1a, the sleeve body 21 of the support sleeve 20 is in a full ring shape and does not have elastic supporting members, so the elastic clamping member 22 is clamped and fixed in the first rear opening 14 of the pipe body 10. Since the elastic clamping member 22 is arranged outside the sleeve body 21, the sleeve body 21 is separated from the fluid channel 13 of the pipe body 10; therefore, the elastic clamping member 22 will not be soaked in fluid for a long time, thereby shortening its service life, and compared with the fluid connector 1a using elastic supporting members, the fluid connector 1a has a longer service life.

[0095] Please refer to Figure 3 the second embodiment of the fluid connector 1b of the utility model, most of the structures of which are the same as those of the first embodiment shown in Figure 2 and both comprise a pipe body 10, a support sleeve 20, a movable valve 30, and a spring; wherein the movable valve 30 and the spring are the same as those of the first embodiment, which will not be described here.

[0096] Please refer to Figure 4 together, compared with the first embodiment, the pipe body 10 of this embodiment is different in that an inner wall surface 142 of the first rear opening 14 is formed with a thread 144, which can be an internally recessed internal thread.

[0097] The support sleeve 20 of this embodiment comprises a sleeve body 21 and a first thread 215, which is integrally formed on an outer ring wall 210 of the sleeve body 21. The first thread 215 can be a first external thread protruding outward, which matches the internal thread of the first rear opening 14 of the pipe body 10, thereby stably screwing the sleeve body 21 into the first rear opening 14 of the pipe body 10.

[0098] From the second embodiment of the fluid connector 1b, it is known that the support collar 20 without elastic support is directly screwed with the first thread on the inner wall surface 142 of the first rear opening 14 of the pipe body 10, and the first thread is located on the outside of the collar body 21, so the first thread 215 is also separated from the fluid pipe 13 of the pipe body 10 through the collar body 21; therefore, the first thread 215 will not be soaked in the fluid for a long time, which shortens its service life, and the support collar 20 is screwed with the first thread on the inner wall surface 142 of the first rear opening 14 of the pipe body 10, which has a large indirect bonding area and has a more stable bonding effect, compared with the fluid connector 1b using the elastic support, has a longer service life.

[0099] In summary, the collar body of the fluid connector of the utility model is fixed in the first rear opening of the pipe body with the elastic clamping member or the first thread, and the elastic clamping member and the first thread are located on the outer wall 210 of the collar body, that is, separated from the fluid pipe of the pipe body through the collar body, which will not be soaked in the fluid for a long time, which shortens its service life, and can effectively improve the service life of the fluid connector. In addition, the first rear opening in the pipe body and the fluid pipe can further form a stop wall, when the front end surface 213 of the collar body abuts against the stop wall, it indicates that it has reached the correct position, which helps the assembly of the pipe body and the support collar.

[0100] Of course, the utility model can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the utility model without departing from the spirit and essence of the utility model, but these corresponding changes and modifications should belong to the protection scope of the claims attached to the utility model.

Claims

1. A fluid connector, characterized in that, include: A tube body having, from front to back, a first front opening, a fluid conduit, and a first rear opening that are interconnected; A support collar, located within the first rear opening of the tube body, includes: A ring body, the inner diameter of which is smaller than the inner diameter of the fluid conduit; and An elastic locking member is located between an outer ring wall of the collar body and an inner wall surface of the first rear opening of the tube body to fix the collar body in the first rear opening of the tube body. A movable valve, slidably disposed within the fluid conduit of the pipe body, selectively closes the first front opening of the pipe body; and A spring is disposed inside the fluid conduit of the pipe body, with one end abutting against the movable valve and the other end abutting against a front end face of the support collar.

2. The fluid connector as described in claim 1, characterized in that: A concave ring portion is formed in part of the outer ring wall of the collar body; The inner wall of the first rear opening of the tube body forms an annular groove corresponding to the concave annular portion, and the width of the annular groove matches the thickness of the elastic engaging member; and The elastic locking element partially engages within the annular groove.

3. The fluid connector as described in claim 2, characterized in that: The flexible locking element is a C-type snap ring or a coil snap ring; and The collar itself is made of metal.

4. The fluid connector as described in claim 3, characterized in that: The diameter of the first rear opening is larger than the inner diameter of the fluid conduit, so as to form a stop wall at the junction of the first rear opening and the fluid conduit; and The front end face of the collar body partially abuts against the stop wall of the tube body.

5. The fluid connector as described in any one of claims 1 to 4, characterized in that: The diameter of the first front opening of the pipe body is smaller than the inner diameter of the fluid conduit, and the inner diameter of the collar body is smaller than the diameter of the first front opening; and The movable valve is integrated from front to back as a single unit: A head, matching the first front opening; A body, matching the fluid conduit; and One end is inserted into the spring.

6. The fluid connector as claimed in claim 5, characterized in that, It further includes a first sealing ring, which is fitted onto the head of the movable valve to seal the first front opening.

7. The fluid connector as claimed in claim 6, characterized in that, The outer wall of the tube body is integrally formed from front to back with an outer engaging portion, a protrusion, an external thread and a second sealing ring, the second sealing ring being located between the protrusion and the external thread.

8. A fluid connector, characterized in that, include: A tube body having, from front to back, a first front opening, a fluid conduit, and a first rear opening that are interconnected; The diameter of the first rear opening is larger than the inner diameter of the fluid pipe, so as to form a stop wall at the junction of the first rear opening and the fluid pipe. A support collar, located within the first rear opening of the tube body, includes: A ring body, the inner diameter of which is smaller than the inner diameter of the fluid conduit, wherein a front end face of the ring body partially abuts against the stop wall of the conduit body; and A first thread is integrally formed on an outer ring wall of the collar body to screw into an inner wall surface of the first rear opening of the tube body; A movable valve, slidably disposed within the fluid conduit of the pipe body, selectively closes the first front opening of the pipe body; and A spring is disposed inside the fluid conduit of the pipe body, with one end abutting against the movable valve and the other end abutting against the front end face of the collar body of the supporting collar.

9. The fluid connector as claimed in claim 8, characterized in that: The inner wall surface of the first rear opening of the pipe body forms an internal thread; and The first thread of the support collar is an external thread, which engages with the internal thread of the pipe body.

10. The fluid connector as claimed in claim 8 or 9, characterized in that: The diameter of the first front opening of the pipe body is smaller than the inner diameter of the fluid conduit, and the inner diameter of the collar body is smaller than the diameter of the first front opening; and The movable valve is integrated from front to back as a single unit: A head, matching the first front opening; A body, matching the fluid conduit; and One end is inserted into the spring.

11. The fluid connector as claimed in claim 10, characterized in that, It further includes a first sealing ring, which is fitted onto the head of the movable valve to seal the first front opening.

12. The fluid connector as claimed in claim 10, characterized in that, The support collar is made of metal.

13. The fluid connector as claimed in claim 12, characterized in that, The outer wall surface of the tube body is integrally formed from front to back with an outer engaging portion, a protrusion, a second external thread and a second sealing ring, the second sealing ring being located between the protrusion and the second external thread.

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