阅读说明：本技术 一种管路连接接头 (Pipeline connecting joint ) 是由 邵玉强 其他发明人请求不公开姓名 于 2020-08-01 设计创作，主要内容包括：本发明涉及一种管路连接接头,其包括：能够互相卡接的公接头与母接头,所述公接头包括：插接体、左单向阀组件、顶套、锁销、滑套、第一弹性件,所述母接头包括：环套、连接体、右单向阀组件、锁止组件,本发明的优点在于：通过设置锁止组件,能够实现管路的快速连接与拆卸,且在管路内压力的作用下能可靠的保持在连接位置,安装和维修方便快捷；本发明,结构简单,节省成本,安全可靠。(The invention relates to a pipe joint, comprising: male and female connectors that can be snapped into each other, the male connector comprising: the body, left check valve subassembly, top cover, lockpin, sliding sleeve, first elastic component insert, female joint includes: the invention relates to a loop, a connector, a right one-way valve component and a locking component, which has the advantages that: by arranging the locking assembly, the pipeline can be quickly connected and detached, and can be reliably kept at a connecting position under the action of pressure in the pipeline, so that the pipeline is convenient and quick to install and maintain; the invention has simple structure, cost saving, safety and reliability.)

1. A pipe coupling, said pipe coupling comprising: a male connector and a female connector which can be mutually clamped,

the male connector includes: the plug body is provided with a first installation cavity and a first channel communicated with the first installation cavity along the axis direction, the plug body is also provided with an annular groove perpendicular to the axis direction, the side surface of the plug body is provided with an L-shaped through groove communicated with the annular groove, the left check valve assembly is arranged in the first installation cavity and used for controlling the connection and disconnection of the first installation cavity and the first channel, and the top sleeve is arranged in the annular groove in a sliding manner; the lock pin penetrates through the L-shaped through groove to be fixedly connected with the top sleeve, the lock pin can slide in the L-shaped through groove so as to drive the top sleeve to slide or rotate along the axial direction of the plug-in body, the sliding sleeve is sleeved outside the plug-in body, the sliding sleeve is fixedly connected with the lock pin, the side surface of the plug-in body is provided with an annular boss, the first elastic piece is arranged between the annular boss and the sliding sleeve, the side surface of the plug-in body is also provided with a clamping annular groove,

the female joint includes: the connecting body is in threaded connection with one end of the ring sleeve, a second installation cavity and a second channel communicated with the second installation cavity are formed in the connecting body, the right check valve assembly is arranged in the second installation cavity and used for controlling the on-off of the second installation cavity and the second channel, the locking assembly is arranged at the left end of the connecting body and can be clamped in the clamping annular groove, so that the male connector and the female connector are clamped,

locking subassembly include middle part swivelling joint in locking lever on the connector, slide set up in first stopper post and second stopper post on the connector, first stopper post with second stopper post respectively the butt in the locking lever both ends, first stopper post can stretch out the left end face of connector with the right-hand member face butt of the plug body, the second stopper post can stretch out the left end face of connector with the top cover butt, work as the locking lever perpendicular to during the axis direction of connector, the locking lever can stretch into in the joint annular so that plug body and connector joint, through control the top cover is flexible can be controlled thereby the second stopper post is controlled the angle of locking lever, in order to control the locking lever with the joint state of joint annular.

2. The pipe coupling according to claim 1, wherein the locking pin is pushed to move to the right end of the L-shaped through slot, so that the top sleeve extends toward the connecting body, and then the plug body is pushed toward the connecting body, so that the top sleeve can push the second plug, and the locking rod rotates and disengages from the snap ring slot.

3. The pipe joint according to claim 2, wherein the left check valve assembly comprises a left valve core, a first annular support plate and a second elastic member, the left end of the left valve core has a left sealing boss, the first annular support plate is fixed in the first installation cavity and located on the left side of the left valve core, and the second elastic member is disposed between the left valve core and the first annular support plate, so that the left sealing boss of the left valve core abuts against the right end of the first installation cavity to block the first installation cavity and the first channel.

4. The pipe coupling according to claim 3, wherein the right check valve assembly includes a right valve core, a second annular support plate, and a third elastic member, the right valve core has a right sealing boss at a left end thereof, the second annular support plate is fixed in the second mounting cavity and located at a right side of the right valve core, the third elastic member is disposed between the right valve core and the second annular support plate, such that the right sealing boss abuts against a left end of the second mounting cavity to block the second mounting cavity from the second passage, the right sealing boss has a left abutting rod, and after the male joint is engaged with the female joint, the abutting rod extends into the first passage and abuts against the left sealing boss to communicate the first mounting cavity with the first passage, and simultaneously communicate the second mounting cavity with the second passage.

5. The pipe joint according to claim 4, wherein a first intermediate chamber is formed between the right end of the left valve element and the right end of the first installation chamber, the left sealing boss is used for controlling the connection and disconnection of the first intermediate chamber and the first channel, a first through hole is formed in the left valve element, and the first through hole communicates the left end of the first installation chamber with the first intermediate chamber.

6. The pipe joint according to claim 4, wherein a second intermediate chamber is formed between the left end of the right valve element and the left end of the second mounting chamber, the right sealing boss is used for controlling the connection and disconnection of the second intermediate chamber and the second channel, a second through hole is formed in the right valve element, and the second through hole communicates the right end of the second mounting chamber with the second intermediate chamber.

7. The pipe coupling according to claim 1, wherein the first passage is provided with a third through hole at a side thereof, the third through hole being capable of communicating the first passage with the second passage.

8. The pipe coupling according to claim 1, wherein the locking assembly further comprises a clamping unit, the clamping unit comprises a first pit formed in a side surface of the first plug and a second pit formed in a side surface of the second plug, when the locking rod is in a vertical state, the clamping unit is clamped with the second pit, and when the locking rod is separated from the clamping ring groove, the clamping unit is clamped with the first pit.

9. The pipe coupling according to claim 8, wherein the clamping unit includes a first clamping ball, a fourth elastic member, and a second clamping ball, the fourth elastic member is disposed between the first clamping ball and the second clamping ball, the first clamping ball abuts against a side surface of the first plug and can be clamped into the first recess, and the second clamping ball abuts against a side surface of the second plug and can be clamped into the second recess.

Technical Field

The invention belongs to the field of pipeline connection, and particularly relates to a pipeline connecting joint.

Background

At present, the connecting method of the pipeline generally adopts three modes. The first is a fixed flange connection mode, and the fixed flange usually uses connecting bolts to butt joint different pipelines, and the connection mode and the connection structure have the problems of troublesome processing and installation and easy leakage at joints. The pipe fitting structure is complex and complicated, so that the convenient and fast connection is difficult to realize. The second method is a welding method, which is influenced by environment and conveying medium, and welding defects such as stress concentration, sand holes, air holes, cracks and the like are easy to occur after welding, so that hidden danger of pipeline leakage exists; and the site needs necessary equipment during construction, and the installation and the maintenance are inconvenient. The third is to adopt slot pipe connection mode, traditional slot pipe fitting has following problem, when cutting the pipe, the tangent plane is uneven, the tangent plane can leave the blank, it is not smooth, will trim the tangent plane this moment, and it is long to trim the required time of tangent plane, with high costs, in addition, when the jet-bedding, can harm the pipe quality, this kind of connection mode needs the body to have certain thickness, is unsuitable for the thin body connection of pipe wall, and in addition, the buckling part is the concave part, reduces the pipeline space, reduces the flow. The three connection modes generally have the defects of inconvenient operation, difficult maintenance, more consumed working hours, high labor intensity, high finished product consumption rate and the like.

Disclosure of Invention

In view of the above, there is a need to provide a pipe joint that is fast to operate and easy to maintain.

The invention discloses a pipeline connecting joint, which comprises: a male connector and a female connector which can be mutually clamped,

the male connector includes: the plug body is provided with a first installation cavity and a first channel communicated with the first installation cavity along the axis direction, the plug body is also provided with an annular groove perpendicular to the axis direction, the side surface of the plug body is provided with an L-shaped through groove communicated with the annular groove, the left check valve assembly is arranged in the first installation cavity and used for controlling the connection and disconnection of the first installation cavity and the first channel, and the top sleeve is arranged in the annular groove in a sliding manner; the lock pin penetrates through the L-shaped through groove to be fixedly connected with the top sleeve, the lock pin can slide in the L-shaped through groove so as to drive the top sleeve to slide or rotate along the axial direction of the plug-in body, the sliding sleeve is sleeved outside the plug-in body, the sliding sleeve is fixedly connected with the lock pin, the side surface of the plug-in body is provided with an annular boss, the first elastic piece is arranged between the annular boss and the sliding sleeve, the side surface of the plug-in body is also provided with a clamping annular groove,

the female joint includes: the connecting body is in threaded connection with one end of the ring sleeve, a second installation cavity and a second channel communicated with the second installation cavity are formed in the connecting body, the right check valve assembly is arranged in the second installation cavity and used for controlling the on-off of the second installation cavity and the second channel, the locking assembly is arranged at the left end of the connecting body and can be clamped in the clamping annular groove, so that the male connector and the female connector are clamped,

locking subassembly include middle part swivelling joint in locking lever on the connector, slide set up in first stopper post and second stopper post on the connector, first stopper post with second stopper post respectively the butt in the locking lever both ends, first stopper post can stretch out the left end face of connector with the right-hand member face butt of the plug body, the second stopper post can stretch out the left end face of connector with the top cover butt, work as the locking lever perpendicular to during the axis direction of connector, the locking lever can stretch into in the joint annular so that plug body and connector joint, through control the top cover is flexible can be controlled thereby the second stopper post is controlled the angle of locking lever, in order to control the locking lever with the joint state of joint annular.

In one embodiment, the locking pin is pushed to move to the right end of the L-shaped through groove, so that the ejector sleeve extends towards the direction of the connecting body, then the plug-in body is pushed towards the direction of the connecting body, and the ejector sleeve can push the second plug column, so that the locking rod rotates and is separated from the clamping ring groove.

In one embodiment, the left check valve assembly comprises a left valve core, a first annular support plate and a second elastic member, wherein a left sealing boss is arranged at the right end of the left valve core, the first annular support plate is fixed in the first installation cavity and located at the left side of the left valve core, and the second elastic member is arranged between the left valve core and the first annular support plate, so that the left sealing boss of the left valve core abuts against the right end of the first installation cavity to block the first installation cavity and the first channel.

In one embodiment, the right check valve assembly includes a right valve core, a second annular support plate, and a third elastic member, the right valve core has a right sealing boss at a left end thereof, the second annular support plate is fixed in the second installation cavity and located at a right side of the right valve core, the third elastic member is disposed between the right valve core and the second annular support plate, so that the right sealing boss abuts against a left end of the second installation cavity to block the second installation cavity and the second passage, the right sealing boss has an abutting rod at a left side thereof, and after the male connector is clamped with the female connector, the abutting rod extends into the first passage and abuts against the left sealing boss to communicate the first installation cavity with the first passage, and simultaneously communicate the second installation cavity with the second passage.

In one embodiment, a first middle cavity is formed between the right end of the left valve core and the right end of the first installation cavity, the left sealing boss is used for controlling the connection and disconnection of the first middle cavity and the first channel, a first through hole is formed in the left valve core, and the first through hole is communicated with the left end of the first installation cavity and the first middle cavity.

In one embodiment, a second middle cavity is formed between the left end of the right valve core and the left end of the second installation cavity, the right sealing boss is used for controlling the connection and disconnection of the second middle cavity and the second channel, a second through hole is formed in the right valve core, and the second through hole is communicated with the right end of the second installation cavity and the second middle cavity.

In one embodiment, a third through hole is arranged on the side surface of the first channel, and the third through hole can communicate the first channel with the second channel.

In one of them embodiment, the locking subassembly still includes the joint unit, the joint unit is including offering in the first pit of first stopper post side to and offer in the second pit of second stopper post side, work as when the locking lever is in vertical state, the joint unit with the second pit joint, work as when the locking lever breaks away from the joint annular, the joint unit with first pit joint.

In one embodiment, the clamping unit includes a first clamping ball, a fourth elastic member, and a second clamping ball, the fourth elastic member is disposed between the first clamping ball and the second clamping ball, the first clamping ball abuts against a side surface of the first plug and can be clamped into the first recess, and the second clamping ball abuts against a side surface of the second plug and can be clamped into the second recess.

The invention has the advantages that: by arranging the locking assembly, the pipeline can be quickly connected and detached, and can be reliably kept at a connecting position under the action of pressure in the pipeline, so that the pipeline is convenient and quick to install and maintain; the invention has simple structure, cost saving, safety and reliability.

Drawings

FIG. 1 is a cross-sectional view of a pipe coupling joint according to the present invention;

FIG. 2 is a cross-sectional view of a male connector of a line connection according to the present invention;

FIG. 3 is a perspective view of an insert body of a pipe coupling joint according to the present invention;

FIG. 4 is a cross-sectional view of a female connector of a pipe coupling joint according to the present invention;

FIG. 5 is an enlarged view of a portion of the invention according to FIG. 4 at A;

fig. 6 to 9 are half sectional views of a pipe joint according to the present invention in different operating states.

In the drawing, the male connector 1, the plug body 11, the first mounting cavity 111, the first passage 112, the annular groove 113, the L-shaped through groove 114, the annular boss 115, the snap ring groove 116, the first middle cavity 117, the first through hole 118, the third through hole 119, the left check valve assembly 12, the left valve spool 121, the left sealing boss 1211, the first annular support plate 122, the second elastic member 123, the top sleeve 13, the lock pin 14, the sliding sleeve 15, the first elastic member 16, the female connector 2, the ring sleeve 21, the connecting body 22, the second mounting cavity 221, the second passage 222, the second middle cavity 223, the second through hole 224, the right check valve assembly 23, the right valve spool 231, the right sealing boss 2311, the abutment rod 2312, the second annular support plate 232, the third elastic member 233, the locking assembly 24, the lock rod 24241, the first plug 242, the first recess 2421, the second plug 243, the second recess 2431, the snap unit 24244, the first snap ball 41, the fourth elastic member 42, the snap ring groove 115, the first middle cavity 21, the second, Second snap ball 2443.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, the present invention discloses a pipe joint, comprising: a male connector 1 and a female connector 2 which can be mutually clamped,

as shown in fig. 2 and 3, the male connector 1 includes: the plug-in connector comprises a plug-in connector 11, a left check valve assembly 12, a top sleeve 13, a lock pin 14, a sliding sleeve 15 and a first elastic piece 16, wherein a first installation cavity 111 and a first channel 112 communicated with the first installation cavity 111 are formed in the plug-in connector 11 along the axis direction, an annular groove 113 is further formed in the plug-in connector 11 perpendicular to the axis direction, an L-shaped through groove 114 is formed in the side surface of the plug-in connector 11, the L-shaped through groove 114 is communicated with the annular groove 113, the left check valve assembly 12 is arranged in the first installation cavity 111 and used for controlling the connection and disconnection of the first installation cavity 111 and the first channel 112, and the top sleeve 13 is slidably arranged in the annular groove 113; the lock pin 14 passes through the L-shaped through groove 114 to be fixedly connected with the top sleeve 13, the lock pin 14 can slide in the L-shaped through groove 114, so as to drive the top sleeve 13 to slide or rotate along the axial direction of the insertion body 11, the sliding sleeve 15 is sleeved outside the insertion body 11 and is fixedly connected with the lock pin 14, an annular boss 115 is arranged on the side surface of the insertion body 11, the first elastic element 16 is arranged between the annular boss 115 and the sliding sleeve 15, a clamping ring groove 116 is further arranged on the side surface of the insertion body 11,

as shown in fig. 4, the female connector 2 includes: ring cover 21, connector 22, right check valve subassembly 23, locking subassembly 24, connector 22 threaded connection in ring cover 21 one end, second installation cavity 221 and with the second passageway 222 of second installation cavity 221 intercommunication have been seted up in connector 22, right check valve subassembly 23 set up in the second installation cavity 221 for control the break-make of second installation cavity 221 and second passageway 222, locking subassembly 24 set up in connector 22 left end, can the joint in joint annular 116, thereby make male joint 1 with female joint 2 joint,

as shown in fig. 5, the locking assembly 24 includes a locking rod 241 rotatably connected to the connecting body 22 at the middle portion, a first plug 242 and a second plug 243 slidably disposed on the connecting body 22, the first plug 242 and the second plug 243 are respectively abutted against two ends of the lock bar 241, the first plug 242 can be extended out of the left end surface of the connection body 22 to abut against the right end surface of the insertion body 11, the second plug 243 can be extended out of the left end surface of the connecting body 22 to abut against the top case 13, when the lock rod 241 is perpendicular to the axial direction of the connecting body 22, the lock rod 241 can extend into the snap ring groove 116 to make the plug-in body 11 snap-connected with the connecting body 22, the angle of the lock rod 241 can be controlled by controlling the extension and retraction of the ejection sleeve 13 so as to control the angle of the second plug 243, so as to control the clamping state of the lock rod 241 and the clamping ring groove 116.

When the lock lever 241 is located at a position perpendicular to the axial direction of the connecting body 22, the left end surface of the lock lever 241 abuts against the connecting body, so that the lock lever 241 can limit the plug-in body 11 from moving to the left.

Preferably, the locking pin 14 is pushed to move to the right end of the L-shaped through slot 114, so that the top sleeve 13 extends towards the connecting body 22, and then the plug body 11 is pushed towards the connecting body 22, so that the top sleeve 13 can push the second plug 243 to move towards the right side, and the locking rod 241 rotates and disengages from the snap ring slot 116.

Preferably, the left check valve assembly 12 includes a left valve element 121, a first annular support plate 122 and a second elastic member 123, the right end of the left valve element 121 has a left sealing boss 1211, the first annular support plate 122 is fixed in the first installation cavity 111 and is located on the left side of the left valve element 121, and the second elastic member 123 is disposed between the left valve element 121 and the first annular support plate 122, so that the left sealing boss 1211 of the left valve element 121 abuts against the right end of the first installation cavity 111 to block the first installation cavity 111 and the first channel 112.

Preferably, the right check valve assembly 23 includes a right spool 231, a second annular support plate 232, a third elastic member 233, the right spool 231 has a right sealing boss 2311 at the left end thereof, the second annular support plate 232 is fixed in the second mounting chamber 221 to the right of the right spool 231, the third elastic member 233 is disposed between the right spool 231 and the second annular support plate 232, such that the right sealing protrusion 2311 abuts against the left end of the second mounting cavity 221, to block said second mounting cavity 221 from said second channel 222, said right sealing boss 2311 has an abutment bar 2312 on the left side, after the male connector 1 is connected with the female connector 2 in a clamping manner, the abutting rod 2312 extends into the first passage 112 and abuts against the left sealing boss 1211, so that the first installation cavity 111 is communicated with the first passage 112, and meanwhile, the second installation cavity 221 is communicated with the second passage 222.

Preferably, a first middle cavity 117 is formed between the right end of the left valve element 121 and the right end of the first installation cavity 111, the left sealing boss 1211 is used for controlling the connection and disconnection between the first middle cavity 117 and the first channel 112, a first through hole 118 is formed in the left valve element 121, and the first through hole 118 communicates the left end of the first installation cavity 111 with the first middle cavity 117.

Preferably, a second middle cavity 223 is formed between the left end of the right valve element 231 and the left end of the second installation cavity 221, the right sealing boss 2311 is used for controlling the connection and disconnection of the second middle cavity 223 and the second channel 222, a second through hole 224 is formed in the right valve element 231, and the second through hole 224 communicates the right end of the second installation cavity 221 with the second middle cavity 223.

Preferably, a third through hole 119 is disposed on a side surface of the first channel 112, and the third through hole 119 can communicate the first channel 112 with the second channel 222.

Preferably, locking subassembly 24 still includes joint unit 244, joint unit 244 is including opening in the first pit 2421 of first stopper 242 side, and open in the second pit 2431 of second stopper 243 side, works as locking lever 241 is in vertical state, joint unit 244 with second pit 2431 joint, works as locking lever 241 breaks away from when joint ring groove 116, joint unit 244 with first pit 2421 joint.

It is understood that the latch lever 241 can be positioned by engaging the engaging unit 244 with the first recess 2421 or the second recess 2431.

Further, the clamping unit 244 includes a first clamping ball 2441, a fourth resilient member 2442, and a second clamping ball 2443, the fourth resilient member 2442 is disposed between the first clamping ball 2441 and the second clamping ball 2443, the first clamping ball 2441 abuts against a side surface of the first plug 242 and can be clamped into the first recess 2421, and the second clamping ball 2443 abuts against a side surface of the second plug 243 and can be clamped into the second recess 2431.

In this embodiment, two locking assemblies 24 are oppositely disposed on the connecting body 22.

The working mode of the invention is as follows: as shown in fig. 6 and 7, when the male connector 1 is connected to the female connector 2, the plug body 11 is inserted into the collar 21 and clamped with the locking assembly 24, and the abutting rod 2312 passes through the first passage 112 and abuts against the left valve element 121, so that the first cavity is communicated with the first passage 112, and the second cavity is communicated with the second passage 222. Specifically, the plug body 11 is stirred the locking lever 241 is rotatory, makes the plug body 11 can insert in the ring cover 21, the plug body 11 when removing to the right side, the butt in right side case 231 promotes right side case 231 removes the extrusion to the right side third elastic component 233, extremely right side case 231 with second annular backup pad 232 butt, at this moment, the plug body 11 promotes first stopper 242 makes first stopper 242 promote locking lever 241 is rotatory, locking lever 241 stretches into in the joint annular 116, thereby makes the plug body 11 with connector 22 joint. Under the action of the second elastic member 123 and the third elastic member 233, the insertion body 11 moves in the direction away from the connecting body 22, so that the lock rod 241 abuts against the right side of the snap ring groove 116, and the connection between the male connector 1 and the female connector 2 is completed, at this time, the left end of the abutting rod 2312 abuts against the right end of the left sealing boss 1211 to enable the first middle cavity 117 to be communicated with the first channel 112, the right end face of the insertion body 11 abuts against the left end face of the right sealing boss 2311 to enable the second channel 222 to be communicated with the second installation cavity 221, fluid can flow from the left end of the pipeline connecting joint to the right end through the first installation cavity 111, the first channel 112, the second channel 222 and the second installation cavity 221 in sequence, and it is worth mentioning that, after fluid is introduced into the pipeline connecting joint, the internal pressure is increased, and the male joint 1 and the female joint 2 can be connected more stably.

When the male connector 1 and the female connector 2 need to be separated, as shown in fig. 8 and fig. 9, the sliding sleeve 15 is pushed to the right side, so that the lock pin 14 moves to the right side along the L-shaped through groove 114, the lock pin 14 is clamped with the L-shaped through groove 114 by rotating the sliding sleeve 15, then the plug body 11 is pushed to the right side, at this time, the top sleeve 13 can push the second plug 243 to move to the right side, so that the clamping unit 244 is clamped with the second concave groove 2431, the lock rod 241 is separated from the clamping ring groove 116, at this time, the plug body 11 can be pulled out to the left side, and the male connector 1 and the female connector 2 are separated.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.