CN118009125A

CN118009125A - Quick connector assembly

Info

Publication number: CN118009125A
Application number: CN202410140035.9A
Authority: CN
Inventors: 徐安赐
Original assignee: First Dome Corp
Current assignee: First Dome Corp
Priority date: 2024-02-01
Filing date: 2024-02-01
Publication date: 2024-05-10

Abstract

The invention provides a quick connector assembly, which comprises a male connector and a female connector which are used for butt joint. The male connector comprises a base body, wherein the base body is provided with a core pipe with a front sealing ring and a rear sealing ring, the outer side of the core pipe is sequentially sleeved with a sliding sleeve and a sleeve from inside to outside, and the outer side of the sliding sleeve is provided with a sliding sleeve sealing ring; the female joint is provided with a pipe body, a pipe body sealing ring is arranged at the outer side of the pipe body, and a movable valve head is arranged in the pipe body; when the pipe body of the female joint is connected with the sleeve of the male joint, the sliding sleeve can be pushed to retreat, so that a first sealing mechanism of the outer side is formed in the sleeve of the male joint by the pipe body sealing ring and the sliding sleeve sealing ring of the sliding sleeve; then, the sliding sleeve is pushed to retreat along with the pipe body, so that a second sealing mechanism on the inner side can be formed in the sliding sleeve by the front sealing ring and the rear sealing ring when the front end of the core pipe of the male connector enters the pipe body.

Description

Quick connector assembly

Technical Field

The invention relates to the field of quick connector assemblies, in particular to a quick connector assembly which is provided with two sealing and leakage-preventing mechanisms on the inner side and the outer side before and after connection so as to prevent internal medium from leaking.

Background

Quick connectors are often used in the current delivery of liquids or gases. The conventional quick connector is designed to be quickly disassembled or quickly connected by matching the male connector and the female connector of the connecting pipeline. Usually, the quick connector female is connected to the fixed module, and one end of the male is connected with the hose, and the other end of the male is connected with the female plug, so that the connection or disconnection of the pipeline in the system is realized.

The prior art, such as chinese patent application No. 201110212179.3, discloses a fixed core joint valve and a self-sealing joint element using the fixed core joint valve, comprising a fixed core joint valve 11 and a movable core joint valve 12 for butt joint to conduct corresponding two pipelines, wherein the front ends of the fixed core joint valve 11 and the movable core joint valve 12 are butt joint ends for butt joint with each other, the fixed core joint valve 11 comprises a first valve body 111 and a first valve seat 112 assembled at the rear end of the first valve body 111, a fixed valve core 113 fixedly connected to the first valve seat 112 is assembled in the first valve body 111, a sliding sleeve 115 is movably arranged on the fixed valve core 113 along the front-rear direction, and a first spring 116 is arranged between the rear end of the sliding sleeve 115 and the first valve seat 112 in a propping manner; the movable core joint valve 12 comprises a second valve body 121 and a second valve seat 122 assembled at the rear end of the second valve body 121, a second channel 123 is provided in the second valve body 121, a movable core 124 is movably assembled in the second channel 123 along the front-rear direction, a second spring 125 is propped between the rear end of the movable core 124 and the second valve seat, the front end of the movable core 124 is in limit fit with the front end of the second valve body 121 and seals the front end of the second channel 123, and the front end of the movable core 124 is provided with a propping structure for being in push fit with the fixed core 113 and moving backwards in the process of butt joint of the fixed core joint valve 11 and the movable core joint valve 12 so as to open the second channel 123. The fixed valve core 113 is provided with a valve core sealing section 117, the fixed valve core 113 is internally provided with a first channel 118, the first channel 118 is provided with a medium inlet 1181 positioned at the rear end of the fixed valve core 113 and used for receiving medium in a corresponding pipeline and a medium outlet 1182 positioned on the periphery of the valve core sealing section 117, and the sliding sleeve 115 is provided with a sliding sleeve sealing section 1151 used for being in sliding sealing fit with the valve core sealing section 117 to seal the medium outlet 1182. The sliding sleeve 115 has an opening stroke of sliding backward with respect to the stationary spool 113 to open the medium outlet 1182, and the front end of the second valve body 121 has a mechanism for pushing the sliding sleeve 115 to open the medium outlet 1182 during the abutting of the stationary and movable spool valves 11, 12, thereby communicating the first and second passages 118, 123.

When the fixed core joint valve 11 and the movable core joint valve 12 are axially abutted, the movable core joint valve 12 stretches into the first valve body 111 of the fixed core joint valve 11 through the second valve body 121, the first valve body 111 is pushed to retreat by the second valve body 121, meanwhile, the movable valve core 124 in the movable core joint valve 12 is propped by the fixed valve core 113 to retreat, and smooth fluid in the fixed core joint valve 11 and the movable core joint valve 12 can pass through.

However, the second valve body 121 pushes the first valve body 111 to move backward in synchronization with the movement of the movable valve body 124 supported by the fixed valve body 113 and moving backward, and when the movable valve body 124 is supported by the fixed valve body 113 and moving backward, the fluid inside the valve body starts to flow, so that a water leakage phenomenon occurs at the position where the movable valve body 12 enters the wall surface of the fixed valve body 11 and at the joint of the movable valve body and the fixed valve body.

In addition, since the invention has only the design of the inner single-channel sealing mechanism, when the fixed and movable core joint valves 11, 12 are released, the fluid remained in the valve body will leak to damage various electronic parts in the electronic equipment because of no other sealing and leak stopping arrangement, so how to ensure that the fixed and movable core joint valves 11, 12 can be completely sealed without water leakage during the joint and the removal actions is the aim to be improved.

Disclosure of Invention

In order to solve the above problems, a main object of the present invention is to provide a quick connector assembly.

Accordingly, the present invention provides a quick connector assembly comprising:

The male connector is provided with a seat body, a sleeve, a sliding sleeve and a first reset spring, wherein the seat body is provided with a core tube, the sliding sleeve and the first reset spring are sleeved on the core tube, the sleeve is arranged on the outer peripheral sides of the sliding sleeve and the first reset spring, the outer peripheral surface of the core tube is provided with a front sealing ring and a rear sealing ring, a core tube sealing section is defined between the front sealing ring and the rear sealing ring, a first channel is arranged in the core tube, a first through hole is formed at the rear end of the seat body in the first channel, at least one second through hole is formed in the circumferential direction of the core tube sealing section, a sliding sleeve sealing section which is in sliding fit with the core tube sealing section relatively is arranged on the inner side of the sliding sleeve, the sliding sleeve sealing section is used for sealing the second through hole, a sliding sleeve sealing ring is arranged on the outer peripheral surface of the sliding sleeve, and the first reset spring is positioned between the sliding sleeve and the seat body;

The female joint is provided with a body, a body channel provided with a seat is arranged in the body, the rear end of the body is provided with a connecting section which is defined with a third port, the third port is communicated with the body channel, the front end of the body is connected with a pipe body, the outer surface of the pipe body is provided with a pipe body sealing ring adjacent to the front end edge of the pipe body, the outer periphery of the pipe body is sleeved with a female joint shell, a second channel arranged in the pipe body is communicated with the body channel, the front end of the pipe body is provided with a sealing through hole, a movable valve head and a second return spring are arranged in the second channel, the second return spring is positioned between the seat and the movable valve head, and the outer periphery of the movable valve head is provided with a valve head sealing section which is in sealing fit with the sealing through hole;

The pipe body of the female joint can push the sliding sleeve to retreat when being connected with the sleeve of the male joint, the pipe body sealing ring on the outer peripheral surface of the pipe body sealing ring and the sliding sleeve sealing ring of the sliding sleeve form a first sealing mechanism on the outer side in the sleeve of the male joint, and the pipe body pushes the sliding sleeve to retreat along with the pipe body, so that the front end of the core pipe of the male joint can push the movable valve head to retreat when entering the pipe body, and the front sealing ring and the rear sealing ring form a second sealing mechanism communicated with the front inner side and the rear inner side in the sliding sleeve.

The quick-operation joint assembly, wherein: a conical convex body adjacent to the front end of the core tube is arranged in the first channel of the core tube, and the conical convex body is provided with at least one conical surface extending to the second port.

The quick-operation joint assembly, wherein: the rear end of the sliding sleeve is provided with a rear groove, and two ends of the first reset spring respectively lean against the rear groove and the seat body.

The quick-operation joint assembly, wherein: a limit part is arranged in the sleeve, and a stop convex body matched with the limit part is arranged at the rear end of the sliding sleeve.

The quick-operation joint assembly, wherein: the body passage has an inclined tapered section and a straight section.

The quick-operation joint assembly, wherein: the seat part of the body is provided with a convex rod which is not contacted with the movable valve head, and the periphery of the seat part is provided with a plurality of supporting pieces which are arranged at intervals and are connected with a channel surface of the channel of the body.

The quick-operation joint assembly, wherein: the valve head sealing section of the movable valve head is provided with at least one valve head sealing ring, the periphery of the movable valve head is provided with a plurality of directional wings which are supported in the second channel and are arranged at intervals, and the rear end of the movable valve head is provided with a valve head groove.

The quick-operation joint assembly, wherein: the two ends of the second spring are respectively sleeved with the convex rod and are abutted in the valve head groove.

The quick-operation joint assembly, wherein: the butt joint or the outer side of the female joint and the male joint is provided with a locking mechanism.

The quick-operation joint assembly, wherein: the female joint comprises a female joint shell, wherein the female joint shell is sleeved on the outer periphery of the pipe body, and an avoidance groove is formed between the female joint shell and the pipe body; the male connector comprises a male connector shell, the male connector shell is sleeved on the outer peripheral side of the sleeve, and a splicing groove is formed between the male connector shell and the sleeve.

The quick-operation joint assembly, wherein: the female connector shell of the female connector is provided with a plugging section matched with the plugging groove inserted into the male connector, and the avoiding groove of the female connector is matched with the sleeve pipe of the male connector to be inserted.

By means of the structure, the invention can form two sealing leakage-proof mechanisms on the inner side and the outer side before and after the male connector and the female connector are connected, so as to prevent internal medium leakage.

Drawings

FIG. 1 is a schematic diagram of the prior art;

fig. 2 and 3 are schematic perspective views of male and female connectors according to the present invention;

FIG. 4 is an exploded perspective view of the male connector of the present invention;

FIG. 5 is a schematic sectional view of a male connector assembly of the present invention;

FIG. 6A and FIG. 6B are exploded perspective views of female connectors according to the present invention;

FIG. 7 is a schematic sectional view of a female connector assembly of the present invention;

fig. 8A-8E are schematic views illustrating the operation of the male and female connectors of the present invention in butt-joint connection.

Reference numerals illustrate: a male connector A; a base A1; a core pipe A11; a core tube sealing section a111; a seat body groove A12; a connecting section a13; a first channel a14; a first port a141; a second port a142; a front seal ring a151; a rear seal ring a152; conical convex body A16; conical surface a161; a sleeve A2; a limit part A21; a male housing A3; abutting section a31; a sliding sleeve A4; a sliding sleeve sealing section A41; sliding sleeve seal ring A42; rear groove a43; stop boss a44; a first return spring A5; a plugging groove A6; a female joint B; a body B1; a body passage B11; an inclined tapered section B111; straight section B112; a third port B113; connection section B114; a seat B12; a convex rod B121; a support B123; a pipe body B2; a second channel B21; sealing the through hole B211; a passage limit portion B213; a pipe body sealing ring B23; a female housing B3; a plug section B31; a movable valve head B4; a valve head seal section B41; valve head seal B411; orientation wing B42; a valve head groove B43; a second return spring B5; avoidance groove B6; gasket B7.

Detailed Description

The above objects of the present invention, as well as the structural and functional characteristics thereof, will be described in terms of the preferred embodiments of the present invention as illustrated in the accompanying drawings.

Please refer to fig. 2 and 3, which are perspective views of male and female connectors according to the present invention. As shown in the figure, the invention provides a quick connector structure, which comprises a male connector A and a female connector B. The front ends of the male connector A and the female connector B facing each other are butted with each other, and the respective rear ends are respectively used for connecting different external units such as pipelines, water tanks and the like. When the male connector A and the female connector B are disconnected and disconnected, the male connector A and the female connector B are respectively in a closed state, and are in a mutually-conductive state after the male connector A and the female connector B are in butt joint.

Please continue to refer to fig. 4, which is a schematic diagram illustrating a male connector according to the present invention; FIG. 5 is a schematic sectional view of a male connector assembly of the present invention. Referring to fig. 2 together, the male connector a has a housing A1, the housing A1 has a core tube a11, the core tube a11 defines a front section and a rear section at the front and rear ends of the housing A1, the front section is provided with a front sealing ring a151 and a rear sealing ring a152 arranged at intervals, and a core tube sealing section a111 is defined between the front sealing ring a151 and the rear sealing ring a 152. The rear section forms a connection section a13 to the external unit.

The core pipe a11 has a first channel a14, the first channel a14 forms a first through opening a141 at the connecting section a13 of the seat body A1, and forms at least a second through opening a142 at the circumference of the core pipe sealing section a 111. The at least one second opening a142 is located between the front sealing ring a151 and the rear sealing ring a 152. A tapered boss A16 is disposed within the first passageway A14 adjacent the forward end of the core tube A11. The conical projection a16 has at least one conical surface a161 extending along to the second port a142 for guiding the medium (e.g., liquid or gas) in the first channel a14 smoothly through the second port a142.

A sliding sleeve A4 and a first reset spring A5 are sleeved on the front section of the core pipe A11. The sliding sleeve A4 can move back and forth along the core pipe A11, and the inner side of the sliding sleeve A4 is provided with a sliding sleeve sealing section A41 which is sealed with the core pipe sealing section A111 in a sliding fit manner. The sliding sleeve sealing section A41 is used for sealing the second opening A142 positioned on the circumference of the core tube sealing section A111, so that the male connector A can keep the first channel A14 in a sealed state before abutting. The peripheral surface of the sliding sleeve A4 is provided with a sliding sleeve sealing ring A42. The rear end of the sliding sleeve A4 is provided with a rear groove A43 and a stop convex body A44. The first return spring A5 is located between the sliding sleeve A4 and the seat A1, and two ends of the first return spring are respectively supported by the rear groove a43 and the seat A1.

A sleeve A2 and a male housing A3 are sleeved on the outer peripheral sides of the sliding sleeve A4 and the first return spring A5 in sequence from inside to outside. The inner side of the sleeve A2 is in sealing fit with a sliding sleeve sealing ring A42 at the periphery of the sliding sleeve A4, and a limiting part A21 is arranged to generate axial interference limit with a stop convex body A44 at the rear end of the sliding sleeve A4 so as to prevent the sliding sleeve A4 from falling out of the male connector A. The male housing A3 has an abutment section a31 for mating with the female connector B. A splicing groove A6 for being matched with the female connector B for butt joint is defined between the inner side of the male connector shell A3 and the outer peripheral side of the sleeve A2.

Please continue to refer to fig. 6A and 6B, which are perspective exploded views of the female connector of the present invention; FIG. 7 is a schematic sectional view of a female connector assembly of the present invention. As shown in the drawings, referring to fig. 4 and 5, the female connector B has a body B1,

The rear end of the body B1 has a connection section B114 connected to an external unit, and the connection section B114 has a third port B113. The front end of the body B1 is connected with a pipe body B2, and a female head shell B3 is sleeved on the peripheral side of the pipe body B2.

The body B1 has a body channel B11 therein, and the front and rear sections of the body channel B11 define an inclined tapered section B111 and a straight section B112, respectively. The inclined tapered section B111 is used to guide the medium (such as liquid or gas) passing through the body channel B11 to pass smoothly, thereby reducing the internal stagnation. The straight section B112 is adjacent to the third port B113. A seat B12 is provided in the body passage B11, a boss B121 is provided thereon, and a plurality of supporting members B123 arranged at intervals are provided on the outer periphery of the seat B12 to connect the passage surface of the body passage B11 so as to support the seat B12 in the body passage B11.

A gasket B7 is arranged at the joint of the pipe body B2 and the body B1 to prevent the medium in the female joint B from leaking. The outer surface of the pipe body B2 is provided with a pipe body sealing ring B23 adjacent to the front end edge thereof, and the pipe body sealing ring B is used for forming a seal on the inner side of the sleeve A2 when the male connector A is in butt joint. The tube body B2 has a second channel B21 therein, which is communicated with the body channel B11. The second channel B21 has a sealing opening B211 at the front end of the tube B2 corresponding to the front end of the core tube a 11. The second channel B21 is provided with a movable valve head B4 and a second return spring B5.

The peripheral surface of the movable valve head B4 is provided with at least one valve head sealing ring B411 and a plurality of orientation wings B42 which are arranged at intervals. The valve head sealing ring B411 defines a valve head sealing section B41 which is in close fit with the sealing opening B211, so that the female connector B keeps the second channel B21 in a closed state before being butted. The free ends of the outwardly extending guide wings B42 contact the channel surface of the second channel B21 to support the movable valve head B4 in a centered arrangement within the tube body B2 (i.e., the movable valve head B4 is radially equidistant from the channel surface of the second channel B21) and stably moves back and forth. The rear end of the movable valve head B4 is provided with a valve head groove B43.

The two ends of the second return spring B5 are respectively sleeved with the convex rod B121 of the seat portion B12 and abutted in the valve head groove B43, so that the elastically compressible top is supported between the seat portion B12 and the movable valve head B4, and the movable valve head B4 can move back and forth in the second channel B21 without contacting the convex rod B121.

The female housing B3 is sleeved on the outer peripheral side of the pipe body B2, and has a plugging section B31 with a smaller outer diameter at the front end thereof, and the plugging section B31 is inserted into the plugging groove A6 when being matched with the male connector a for butt joint. And the inner diameter of the female head shell B3 is larger than the outer diameter of the pipe body B2, so that a avoiding groove B6 is formed between the female head shell B and the pipe body, and when the female head shell B and the male head shell B are matched and are in butt joint with the male joint A, the sleeve A2 is inserted.

Please refer to fig. 8A-8E, which are schematic diagrams illustrating the operation of the male and female connectors in the butt joint connection of the present invention, wherein the dashed lines in fig. 8B-8D represent the pre-operation state and the solid lines represent the post-operation state. As shown in these figures, referring to fig. 4, 5, 6A, 6B and 7, when the male connector a and the female connector B are engaged, the male connector a and the female connector B are inserted and connected to face each other (as shown in fig. 8A).

In the process of butting (i.e. before communicating) the two, the plugging section B31 of the female connector housing B3 of the female connector B is correspondingly inserted into the plugging groove A6 at the inner side of the male connector housing A3; meanwhile, the abutting section A31 of the male head shell A3 is sleeved outside the plugging section B31 of the female head shell B3; and the front end of the sleeve A2 of the male connector A is inserted into the avoidance groove B6 of the female connector B. When the inserting section B31 of the female connector shell B3 is inserted into the inserting groove A6 at the inner side of the male connector shell A3, the front end of the pipe body B2 of the female connector B is connected with the sleeve A2 of the male connector A and can push the sliding sleeve A4 of the male connector A to retreat, so that the first reset spring A5 is compressed, and the pipe body sealing ring B23 at the outer side of the pipe body B2 and the sliding sleeve sealing ring A42 at the outer side of the sliding sleeve A4 are sealed with the sleeve A2 to form a first seal at the outer side; meanwhile, the front end of the core tube a11 of the male connector a contacts the front end of the movable valve head B4 of the female connector B, so that the movable valve head B4 is slightly pushed, and the front sealing ring a151 forms a second sealing mechanism on the inner side of the sliding sleeve A4 before being communicated with the sealing through hole B211 of the pipe body B2 along with the movement of the front end of the core tube a11 (as shown in fig. 8B and 8C).

Along with the forward end of the pipe body B2 of the female connector B continuing to push the sliding sleeve A4 of the male connector a to slide backward, when the front end of the core pipe a11 of the male connector a enters the pipe body B2 of the female connector B, the movable valve head B4 of the female connector B can be pushed to move backward, and the rear sealing ring a152 of the core pipe a11 forms a second sealing mechanism on the inner side of the sliding sleeve A4 after being communicated (as shown in fig. 8D).

Thus, when the contact end surface of the front end of the pipe body B2 of the female connector B and the front end of the sliding sleeve A4 of the male connector a move through the second port a142 of the male connector a, the aforementioned first and second seals achieve a multi-seal effect, so that the medium oozing from the second port a142 to the contact end surface is sealed, and the medium in the male connector a and the female connector B is prevented from leaking before communication.

After the first seal and the second seal are formed, the front end of the pipe body B2 of the female connector B continuously pushes the sliding sleeve A4 of the male connector A to slide backwards and retract, the movable valve head B4 of the female connector B is pushed by the front end of the core pipe A11 of the male connector A, the sealing through hole B211 is retracted towards the seat B12 of the female connector B, and the front end of the core pipe A11 of the male connector A enters the second channel B21 in the pipe body B2 of the female connector B. And along with the front end of the core tube A11 of the male connector A entering the second channel B21 in the tube body B2 of the female connector B, the front sealing ring A151 of the core tube A11 enters the second channel B21 through the sealing through hole B211, and the second through hole A142 on the core tube A11 enters the second channel B21 in an opening state after passing through the sealing through hole B211. Therefore, the first channel a14 of the male connector a is communicated with the second channel B21 of the female connector B through the second port a142, so as to allow the medium to flow through the first channel a14 and the second channel B21, thereby completing the butt joint conduction operation of the male connector a and the female connector B (as shown in fig. 8E).

As shown in fig. 8E, after the butt joint is completed, the first return spring A5 and the second return spring B5 are retracted to the final positions in cooperation with the sliding sleeve A4 of the male connector a and the movable valve head B4 of the female connector B, so as to present the most compressed state, and the rear sealing ring a152 of the core tube a11 forms a multiple sealing leakage-proof effect in the sliding sleeve A4 that the second sealing mechanism on the inner side is matched with the first sealing mechanism on the outer side after the connection, so that the internal medium leakage can be prevented after the male connector a is connected with the female connector B.

Furthermore, a locking mechanism is provided at the joint or outside of the male connector a and the female connector B, and the locking mechanism is a mechanism commonly used or common in the connector field, for example, one of the male connector a and the female connector B is provided with at least one steel ball, and the other is provided with at least one groove (or hole) matching with the at least one steel ball, so as to prevent the male connector a and the female connector B from being axially separated after the joint by radial locking of the steel ball and the groove (or hole).

While the invention has been described in detail in connection with the present invention, it is to be understood that the same is by way of illustration and example only and is not intended to be limited to the specific embodiments disclosed herein. All equivalent changes and modifications according to the present invention should be made within the scope of the present invention.

Claims

1. A quick connector assembly, comprising:

2. The quick connector assembly of claim 1, wherein: a conical convex body adjacent to the front end of the core tube is arranged in the first channel of the core tube, and the conical convex body is provided with at least one conical surface extending to the second port.

3. The quick connector assembly of claim 1, wherein: the rear end of the sliding sleeve is provided with a rear groove, and two ends of the first reset spring respectively lean against the rear groove and the seat body.

4. The quick connector assembly of claim 1, wherein: a limit part is arranged in the sleeve, and a stop convex body matched with the limit part is arranged at the rear end of the sliding sleeve.

5. The quick connector assembly of claim 1, wherein: the body passage has an inclined tapered section and a straight section.

6. The quick connector assembly of claim 1, wherein: the seat part of the body is provided with a convex rod which is not contacted with the movable valve head, and the periphery of the seat part is provided with a plurality of supporting pieces which are arranged at intervals and are connected with a channel surface of the channel of the body.

7. The quick connector assembly of claim 6, wherein: the valve head sealing section of the movable valve head is provided with at least one valve head sealing ring, the periphery of the movable valve head is provided with a plurality of directional wings which are supported in the second channel and are arranged at intervals, and the rear end of the movable valve head is provided with a valve head groove.

8. The quick connector assembly of claim 7, wherein: the two ends of the second spring are respectively sleeved with the convex rod and are abutted in the valve head groove.

9. The quick connector assembly of claim 1, wherein: the butt joint or the outer side of the female joint and the male joint is provided with a locking mechanism.

10. The quick connector assembly of claim 1, wherein: the female joint comprises a female joint shell, wherein the female joint shell is sleeved on the outer periphery of the pipe body, and an avoidance groove is formed between the female joint shell and the pipe body; the male connector comprises a male connector shell, the male connector shell is sleeved on the outer peripheral side of the sleeve, and a splicing groove is formed between the male connector shell and the sleeve.

11. The quick connector assembly of claim 10, wherein: the female connector shell of the female connector is provided with a plugging section matched with the plugging groove inserted into the male connector, and the avoiding groove of the female connector is matched with the sleeve pipe of the male connector to be inserted.