CN211010337U

CN211010337U - Pipe fitting joint

Info

Publication number: CN211010337U
Application number: CN201922147536.7U
Authority: CN
Inventors: 薛菊能
Original assignee: Yuhuan Huaneng Impeller Co ltd
Current assignee: Yuhuan Huaneng Impeller Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-14
Anticipated expiration: 2029-12-04

Abstract

The utility model provides a pipe fitting connects belongs to and connects pipe fitting technical field soon. It has solved the pipe fitting connection in the current quick-connect pipe fitting, connects inconvenient problem. This pipe fitting connects including connecting the body, the one end that connects the body sets firmly and is provided with into water bayonet joint, be provided with coupling assembling on the bayonet joint of intaking, the other end that connects the body sets up the joint cover of living, it is equipped with the screens device to live between cover and the joint body, the middle part position that connects the inner wall of body has the annular arch of undergauge formation, piston and this piston and the protruding sliding fit of annular are worn to be equipped with to the axial in the annular arch, set up between annular arch and the piston and connect out water pipe body when the body of intaking is in the logical water state, enable the protruding and piston stagnant water complex sealing device of annular. The utility model has the advantages of reasonable design, simple, the pipe connection is convenient, convenient to use.

Description

Pipe fitting joint

Technical Field

The utility model belongs to the technical field of connect the pipe fitting soon, a pipe fitting connects is related to.

Background

In real life, the joint is often needed to realize the quick connection among the water faucet, the water pipe or the water gun and the like. When the water tap, the water gun and the like are closed, the water in the water pipe may generate an outward rushing force under the action of water pressure, so that a small amount of water still overflows after the water tap, the water gun and the like are closed.

In view of the above situation, a pipe joint is available in the market, for example, the chinese patent nos.: the pipeline joint piece with the non-return function described in '201120428135. X' has a specific structure comprising a body, wherein a liquid inlet and a liquid outlet are respectively arranged at two ends of the body, and a one-way valve device is arranged in an inner cavity of the body; the check valve device comprises a valve rod, one end of the valve rod is connected with a plug arranged at the liquid inlet interface, the outer diameter of the plug is larger than the inner diameter of the liquid inlet interface, and the other end of the valve rod penetrates through a guide sleeve arranged at the liquid outlet interface.

In the structure, the valve rod and the plug can not automatically close the through-flow states of the liquid inlet interface and the liquid outlet interface, and when the pipe fittings are connected, the pipe fittings can be connected only by closing the liquid inlet interface, so that the connection is inconvenient; the connecting parts of the pipeline joint pieces are different in structure, special joints are needed for connection, connection cannot be achieved under the condition that no special joint exists, and connection is inconvenient; seriously affecting production or life and causing certain loss.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, convenient to use, need not to close into the water body and can connect out the water body, and connect convenient pipe fitting and connect.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a pipe fitting connects, includes the joint body, the one end of joint body set firmly and be provided with into water bayonet joint, the bayonet joint of intaking on be provided with and enable into water bayonet joint quick with the body coupling assembling that intakes fixedly, the other end of joint body set up the joint cover of living, living joint cover and joint body between be equipped with and enable the other end of joint body and the screens device of play water body axial connection fixed, a serial communication port, the middle part position of the inner wall of joint body annular arch that the undergauge formed has, annular arch in the axial wear to be equipped with piston and this piston and the protruding sliding fit of annular, annular arch and piston between set up and connect out the water body when the body of intaking is in logical water state, enable annular arch and piston stagnant water complex sealing device.

The pipe fitting joint is mainly characterized in that a sealing device is arranged between the annular protrusion and the piston, the annular protrusion is matched with the piston in a water stop mode through the sealing device, the water inlet pipe body is connected with the water outlet pipe body when the water inlet pipe body is in a water supply state, and the pipe fitting joint is convenient to connect and use.

In a foretell pipe fitting joint, sealing device include elastic rubber sealing ring, the outer wall of piston base of piston on be provided with and inlay the groove, elastic rubber sealing ring set up and inlay the inslot and elastic rubber sealing ring in inlay the outer wall of establishing the piston base that the groove part is radial higher than the piston in the groove, when the body of intaking is in logical water state, this piston axial displacement makes elastic rubber sealing ring and the protruding axial of annular support to lean on sealedly under the promotion of medium. The matching of the elastic rubber sealing ring and the annular bulge can ensure the effectiveness of sealing the piston and the annular bulge, and the structure is stable.

In the above pipe fitting joint, the outer wall of the piston base of the piston is further provided with an annular backer which can enable the elastic rubber sealing ring to be deformed in a single direction and abutted when the elastic rubber sealing ring and the annular bulge are abutted in the axial direction, and the annular backer and the piston base of the piston are of an integrated structure. The purpose that sets up like this makes elastic rubber sealing ring and annular bulge sealed complex sealed effect better, and sealed cooperation structural stability is higher.

In the above pipe fitting joint, the water passing grooves are axially distributed on the wall of the piston cylinder of the piston at intervals in the circumferential direction, and when the other end of the joint body is axially connected and fixed with the water outlet pipe body, the water outlet pipe body axially abuts against the piston cylinder of the piston, so that the piston cylinder of the piston is axially displaced, and the joint body is communicated through the water passing grooves. The purpose of the arrangement is to provide the water passing groove which can prevent the connector body from being blocked and has stable water passing structure.

In the above pipe fitting joint, the connecting assembly comprises a screw sleeve and a clamping jaw, an internal thread is arranged on the inner wall of the screw sleeve, an external thread is arranged on the outer wall of the water inlet plug-in connector, the internal thread of the screw sleeve is in screw fit with the external thread of the water inlet plug-in connector, and the clamping jaw is arranged in the screw sleeve and sleeved on the water inlet plug-in connector. The purpose of setting up like this is through the relative dislocation of the axial of spiral shell and jack catch, and radial extrusion fit enables into water bayonet joint and body coupling fixation, stable in structure.

In the pipe fitting joint, the other end of the joint body penetrates through the movable joint sleeve, an expansion spring which is axially arranged is arranged between the other end of the joint body and the movable joint sleeve, a first outward-protruding annular spring step is arranged on the outer wall of the other end of the joint body, a second inward-recessed annular spring step is arranged on the inner wall of the movable joint sleeve, one end of the expansion spring is elastically abutted against the first annular spring step, the other end of the expansion spring is elastically abutted against the second annular spring step, and a limiting device for preventing the movable joint sleeve from axially separating from the other end of the joint body is arranged between the movable joint sleeve and the other end of the joint body. The purpose of this setting is that the other end of joint body and loose joint cover axial displacement structure are stable.

In a kind of above-mentioned pipe fitting connects, stop device set firmly the spacer pin on the outer wall of the other end that connects the body, the outer wall of loose joint cover on have the bar spacing groove that is the axial setting, when the other end that connects the body wears to locate in the loose joint cover, and this spacer pin is in the bar spacing groove and can carry out the axial spacing in the both ends of the cell wall of bar spacing groove by the axial joint. The purpose of this arrangement is to effectively prevent the loose joint sleeve from axially disengaging from the other end of the joint body.

In the above pipe fitting joint, the position-locking device comprises a locking ball, circular locking grooves are circumferentially distributed on the pipe wall at the other end of the joint body at intervals, the clamping balls are movably arranged in the corresponding circular clamping grooves, the clamping grooves are circumferentially distributed on the inner wall of the movable joint sleeve at intervals, when the loose joint sleeve axially displaces at the other end of the joint body to enable the circular clamping groove and the clamping groove to be opposite in radial direction, and the clamping ball can fall into the clamping groove and is radially separated from the inner surface of the pipe wall at the other end of the joint body, so that the other end of the joint body is axially inserted with the water outlet pipe body, when the loose joint sleeve axially displaces at the other end of the joint body to cause the circular clamping groove and the clamping groove to be relatively dislocated in the radial direction, the clamping ball extends out of the inner surface of the pipe wall of the other end of the joint body from the part, which is abutted against the clamping ball, of the inner wall of the clamping sleeve, so that the other end of the joint body is axially inserted and fixed with the water outlet pipe body. The purpose that sets up like this makes the other end and the play water pipe body axial grafting of joint body fixed, stable in structure through the card ball.

In the above pipe fitting joint, a groove wall at one end of the locking groove is an inclined wall. The purpose of setting like this is to make things convenient for the card ball to stabilize and withdraw into the screens groove.

In the pipe joint, the strip-shaped limiting groove is located in the middle between two adjacent clamping grooves of the movable sleeve. The purpose of setting like this is can guarantee the mechanical strength of loose joint cover, long service life.

Compared with the prior art, the pipe fitting joint has the advantages that: the water inlet pipe body does not need to be closed, so that the joint body can automatically stop water, and the water outlet pipe body is connected when the joint body is in a water stop state, so that the pipe fitting is convenient to connect; one end of the joint body is fixedly provided with the connecting component, and the other end of the joint body is provided with the clamping device, so that the axial connection of the pipe fittings is facilitated; the utility model has the advantages of reasonable design, simple, the pipe connection is convenient, convenient to use.

Drawings

Fig. 1 is a schematic sectional structure view of the pipe joint.

Fig. 2 is a left side view of the loose joint sleeve in the pipe joint.

In the figure, 1, a joint body; 2. a water inlet plug; 3. a movable connecting sleeve; 4. an annular projection; 5. a piston; 6. an elastic rubber seal ring; 7. an annular backer; 8. a water trough; 9. a spiral sleeve; 10. a claw; 11. a tension spring; 12. a first annular spring step; 13. a second annular spring step; 14. a spacing pin; 15. a strip-shaped limiting groove; 16. blocking the ball; 17. screens groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the pipe fitting joint mainly comprises a joint body 1, an annular protrusion 4 formed by reducing the diameter is arranged in the middle of the inner wall of the joint body 1, a piston 5 axially penetrates through the annular protrusion 4, the piston 5 is in sliding fit with the annular protrusion 4, a sealing device which is connected with a water outlet pipe body when the water inlet pipe body is in a water-passing state is arranged between the annular protrusion 4 and the piston 5 and enables the annular protrusion 4 and the piston 5 to be in water-stopping fit is arranged between the annular protrusion 4 and the piston 5.

In actual manufacturing, the sealing device is implemented by the following specific modes: the water inlet pipe body is mainly composed of an elastic rubber sealing ring 6, an embedded groove is formed in the outer wall of a base of a piston 5, the elastic rubber sealing ring 6 is arranged in the embedded groove, the part of the elastic rubber sealing ring 6 in the embedded groove is radially higher than the outer wall of the base of the piston 5, and when the water inlet pipe body is in a water passing state, the piston 5 is pushed by a medium to axially displace so that the elastic rubber sealing ring 6 and the annular bulge 4 are axially abutted and sealed; the outer wall of the base of the piston 5 is also provided with an annular backer 7 which can enable the elastic rubber sealing ring 6 to be unidirectionally deformed and abutted when the elastic rubber sealing ring 6 is axially abutted against the annular bulge 4, and the annular backer 7 and the base of the piston 5 are of an integrated structure; the wall of 5 section of thick bamboo of piston 5 of piston is gone up the circumference interval distribution and is the water trough 8 that axial setting is, when the other end of connecting body 1 and play water body axial connection are fixed, and should go out water body axial and support and lean on 5 sections of thick bamboo of piston 5, cause 5 section of thick bamboo axial displacements of piston 5, make connect body 1 communicate through water trough 8.

The one end that connects body 1 sets firmly and is provided with into water bayonet 2, is provided with on the bayonet 2 of intaking and enables into water bayonet 2 quick with the body coupling assembling who intakes fixedly, when actual manufacturing, this coupling assembling's concrete implementation structure is: mainly by spiral shell 9 and jack catch 10 constitution, have the internal thread on the inner wall of spiral shell 9, have the external screw thread on the outer wall of bayonet joint 2 of intaking, the internal thread of spiral shell 9 and the external screw thread screw-thread cooperation of bayonet joint 2 of intaking, jack catch 10 sets up in spiral shell 9 and overlaps and establish on bayonet joint 2 of intaking.

The other end of the joint body 1 is provided with a movable sleeve 3, specifically speaking: the other end that connects body 1 wears to locate in the loose joint cover 3 and should connect and be provided with the expanding spring 11 that is the axial and places between body 1's the other end and the loose joint cover 3, the annular spring step 12 that has the evagination on the outer wall of the other end that connects body 1, annular spring step two 13 that has the indent on the inner wall of loose joint cover 3, the one end elasticity of expanding spring 11 supports and leans on annular spring step one 12, the other end elasticity of expanding spring 11 supports and leans on annular spring step two 13, be provided with the stop device who prevents that loose joint cover 3 axial breaks away from the other end that connects body 1 between loose joint cover 3 and the other end that connects body 1. During actual manufacturing, the specific implementation mode of the limiting device is as follows: the outer wall of the other end of the joint body 1 is fixedly provided with a limit pin 14, the outer wall of the movable joint sleeve 3 is provided with a strip-shaped limit groove 15 which is axially arranged, when the other end of the joint body 1 is arranged in the movable joint sleeve 3 in a penetrating way, the limit pin 14 is positioned in the strip-shaped limit groove 15 and can be axially clamped at two ends of the groove wall of the strip-shaped limit groove 15 for axial limit.

A clamping device which can axially connect and fix the other end of the joint body 1 and the water outlet pipe body is arranged between the loose joint sleeve 3 and the joint body 1, and when in actual manufacturing, the specific implementation mode of the clamping device is as follows: the water outlet pipe joint mainly comprises clamping balls 16, circular clamping grooves are circumferentially distributed on the pipe wall of the other end of the joint body 1 at intervals, the clamping balls 16 are movably arranged in the corresponding circular clamping grooves, clamping grooves 17 are circumferentially distributed on the inner wall of the movable joint sleeve 3 at intervals, when the movable joint sleeve 3 axially displaces at the other end of the joint body 1 to enable the circular clamping grooves and the clamping grooves 17 to be radially opposite, the clamping balls 16 can fall into the clamping grooves 17 to radially separate from the inner surface of the pipe wall of the other end of the joint body 1 to enable the other end of the joint body 1 to be axially inserted into a water outlet pipe body, and when the movable joint sleeve 3 axially displaces at the other end of the joint body 1 to enable the circular clamping grooves and the clamping grooves 17 to be radially opposite, the clamping balls 16 partially extend out of the inner surface of the pipe wall of the other end of the joint body 1 from the clamping balls 16 to enable the other; the groove wall of one end of the blocking groove 17 is an inclined wall.

In order to ensure the mechanical strength of the loose joint 3, the strip-shaped limiting groove 15 is positioned in the middle between two adjacent blocking grooves 17 of the loose joint 3.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A pipe fitting joint comprises a joint body (1), wherein one end of the joint body (1) is fixedly provided with a water inlet plug-in connector (2), the water inlet plug-in connector (2) is provided with a connecting component which can enable the water inlet plug-in connector (2) to be quickly connected and fixed with a water inlet pipe body, the other end of the joint body (1) is provided with a movable sleeve (3), a clamping device which can enable the other end of the joint body (1) to be axially connected and fixed with a water outlet pipe body is arranged between the movable sleeve (3) and the joint body (1), the pipe fitting joint is characterized in that an annular bulge (4) formed by reducing the diameter is arranged at the middle position of the inner wall of the joint body (1), a piston (5) is axially arranged in the annular bulge (4) in a penetrating manner, the piston (5) and the piston (5) are in sliding fit with the annular bulge (4), and the annular bulge (4) is arranged between the piston (5) and is connected with the water outlet pipe body when, a sealing device which can lead the annular bulge (4) and the piston (5) to be matched with each other in a water-stop way.

2. A pipe joint according to claim 1, wherein the sealing means comprises an elastic rubber sealing ring (6), an embedded groove is provided on the outer wall of the piston base of the piston (5), the elastic rubber sealing ring (6) is arranged in the embedded groove, and the elastic rubber sealing ring (6) is partially radially higher than the outer wall of the piston base of the piston (5) in the embedded groove, when the water inlet pipe body is in a water passing state, the piston (5) is pushed by a medium to axially displace so that the elastic rubber sealing ring (6) and the annular protrusion (4) are axially abutted and sealed.

3. A pipe joint according to claim 2, wherein the outer wall of the piston base of the piston (5) is further provided with an annular abutment (7) which enables the elastic rubber sealing ring (6) to be unidirectionally deformed and abutted when the elastic rubber sealing ring (6) is axially abutted against the annular protrusion (4), and the annular abutment (7) and the piston base of the piston (5) are of an integral structure.

4. A pipe joint according to claim 3, wherein the cylinder wall of the piston cylinder of the piston (5) is circumferentially provided with water through grooves (8) at intervals, and when the other end of the joint body (1) is axially connected and fixed with the water outlet pipe body, and the water outlet pipe body axially abuts against the piston cylinder of the piston (5), so that the piston cylinder of the piston (5) is axially displaced, and the joint body (1) is communicated through the water through grooves (8).

5. A pipe fitting joint according to claim 4, wherein the connecting assembly comprises a screw sleeve (9) and a clamping jaw (10), an inner wall of the screw sleeve (9) is provided with an internal thread, an outer wall of the water inlet connecting plug (2) is provided with an external thread, the internal thread of the screw sleeve (9) is in screw fit with the external thread of the water inlet connecting plug (2), and the clamping jaw (10) is arranged in the screw sleeve (9) and sleeved on the water inlet connecting plug (2).

6. A pipe joint according to claim 5, characterized in that the other end of the joint body (1) is inserted into the loose joint sleeve (3) and an axially arranged expansion spring (11) is arranged between the other end of the joint body (1) and the loose joint sleeve (3), the outer wall of the other end of the joint body (1) is provided with a convex annular spring step I (12), the inner wall of the movable connecting sleeve (3) is provided with a concave annular spring step II (13), one end of the extension spring (11) is elastically abutted against the first annular spring step (12), the other end of the extension spring (11) is elastically abutted against the second annular spring step (13), and a limiting device for preventing the movable sleeve (3) from axially separating from the other end of the joint body (1) is arranged between the movable sleeve (3) and the other end of the joint body (1).

7. A pipe joint according to claim 6, wherein the limiting device comprises a limiting pin (14) fixedly arranged on the outer wall of the other end of the joint body (1), the outer wall of the movable sleeve (3) is provided with a strip-shaped limiting groove (15) which is axially arranged, and when the other end of the joint body (1) is arranged in the movable sleeve (3) in a penetrating manner, the limiting pin (14) is arranged in the strip-shaped limiting groove (15) and can be axially clamped at two ends of the groove wall of the strip-shaped limiting groove (15) for axial limiting.

8. A pipe fitting joint according to claim 7, characterized in that the detent means comprises detent balls (16), circular notches are circumferentially spaced and distributed on the pipe wall of the other end of the fitting body (1), the detent balls (16) are movably located in the corresponding circular notches, detent grooves (17) are circumferentially spaced and distributed on the inner wall of the union sleeve (3), when the union sleeve (3) axially displaces at the other end of the fitting body (1) to make the circular notches and the detent grooves (17) radially face each other, and the detent balls (16) can fall into the detent grooves (17) and radially separate from the inner surface of the pipe wall of the other end of the fitting body (1) to axially insert the other end of the fitting body (1) into the water outlet pipe body, when the union sleeve (3) axially displaces at the other end of the fitting body (1) to make the circular notches and the detent grooves (17) radially relatively dislocate each other, the clamping ball (16) extends out of the inner surface of the pipe wall of the other end of the joint body (1) from the part of the inner wall of the clamping sleeve, which is abutted against the clamping ball (16), so that the other end of the joint body (1) is axially inserted and fixed with the water outlet pipe body.

9. A pipe fitting joint as claimed in claim 8, wherein the wall of said detent groove (17) at one end is an inclined wall.

10. A pipe fitting joint according to claim 9, wherein the strip-shaped limiting groove (15) is located at an intermediate position between two adjacent retaining grooves (17) of the loose joint sleeve (3).