CN111120754A - Novel valve core structure capable of being plugged under pressure - Google Patents
Novel valve core structure capable of being plugged under pressure Download PDFInfo
- Publication number
- CN111120754A CN111120754A CN202010134931.6A CN202010134931A CN111120754A CN 111120754 A CN111120754 A CN 111120754A CN 202010134931 A CN202010134931 A CN 202010134931A CN 111120754 A CN111120754 A CN 111120754A
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- Prior art keywords
- valve core
- plug
- shell
- outer ring
- core rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/22—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts
- F16L37/23—Couplings of the quick-acting type in which the connection is maintained by means of balls, rollers or helical springs under radial pressure between the parts by means of balls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
- F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention relates to a novel valve core structure capable of being plugged and unplugged under pressure, which comprises a shell, an outer ring, a plug, a shell valve core, a plug valve core, a shell valve seat, a plug valve seat, a shell valve core rod, a plug valve core rod and a sealing device, wherein the plug is in sliding connection with an inner cavity of the shell, a taper hole is formed in the plug and is in limited connection with the plug valve core, and the shell valve core, the shell valve seat, the shell valve core rod, the plug valve core rod and the sealing material which are arranged in the shell form the valve core; the plug valve core, the plug valve seat, the plug valve core rod and the sealing material arranged in the plug form a valve core structure which is inserted and pulled under pressure. The structure can ensure that the connector has the characteristic of low connecting force even if any end of the male connector and any end of the female connector have residual pressure, and the purpose of quick plugging and unplugging is achieved under the condition of pressure.
Description
Technical Field
The invention relates to the technical field of quick connectors, in particular to a novel valve core structure capable of being plugged and pulled under pressure.
Background
The pipe joint structure mainly comprises a female socket and a male plug, the quick connection is realized through the insertion of the male plug and the female socket, the traditional joints are single valves, and under the condition of pressure in a pipeline, residual pressure in the pipeline must be firstly discharged, and then the connection or disconnection of the joints can be carried out.
Chinese patent publication No. CN201934836U discloses a gas pipe joint with a gas exhaust function for fast inserting a gas pipe, which comprises an outer joint, an umbrella-shaped sealing ring, an inner joint, an O-shaped sealing ring, a gas pipe bayonet and an O-shaped sealing ring. The method comprises the steps of firstly installing an umbrella-shaped sealing ring into a hole in the upper portion of an outer joint, then sleeving an O-shaped sealing ring into a sealing groove in the outer portion of the inner joint, installing the O-shaped sealing ring into the hole in the upper portion of the inner joint, clamping and pressing an air pipe buckle into the hole in the upper portion of the outer joint together, riveting the hole in the upper portion of the outer joint, sealing the inner joint and the outer joint through the O-shaped ring, and finally sleeving the O-shaped sealing ring into the sealing groove. The air pipe connector achieves the air inlet or exhaust purpose through the back and forth movement of the umbrella-shaped sealing ring, so that the air pipe connector can work only by pressing two ends of the air pipe connector, and the air pipe connector is not suitable for being used under the conditions that one end of the air pipe connector is used for maintaining pressure and the other end of the air pipe connector is used for releasing pressure.
In the liquid pipe joint, the existing joint mechanism has no pressure relief device, and when the pipeline has no pressure relief device, on the premise that the joint must be connected or disconnected, a quick joint with a pressure relief structure must be arranged to solve the technical problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a novel valve core structure capable of being plugged and pulled under pressure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a novel valve core structure capable of being plugged and unplugged under pressure comprises a shell, an outer ring, a plug, a shell valve core, a plug valve core, a shell valve seat, a plug valve seat, a shell valve core rod, a plug valve core rod and a sealing device, wherein the plug is connected with an inner cavity of the shell in a sliding manner, a taper hole is formed in the plug and is connected with the plug valve core in a limiting manner, and the shell valve core, the shell valve seat, the shell valve core rod, the plug valve core rod and a sealing material which are arranged in the shell form the valve;
the plug valve core, the plug valve seat, the plug valve core rod and the sealing material arranged in the plug form a valve core structure which is inserted and pulled under pressure.
Furthermore, a hole retainer ring is arranged in an inner cavity of the plug and is connected with a plug valve seat in a positioning mode, the plug valve seat is connected with a plug valve element in a limiting sliding mode, a plug valve element rod is connected with the plug valve element in a limiting sliding mode, a plug valve element spring is limited between the plug valve seat and the plug valve element rod, a raised head of the plug valve element is correspondingly connected with a taper hole of the plug, and two pressure relief holes are symmetrically formed in the arc position of the head of the plug valve element.
Furthermore, a hole retainer ring is arranged in an inner cavity of the shell and is connected with a shell valve seat in a positioning mode, the shell valve seat is connected with a shell valve core in a limiting sliding mode, a shell valve core rod is connected with the shell valve core in a limiting sliding mode, a shell valve core spring is limited between the shell valve seat and the shell valve core rod, and two pressure relief holes are symmetrically formed in the arc position of the head of the shell valve core.
Furthermore, two sealing ring grooves are formed in the front end of the shell and used for placing an O-shaped ring and a PTFE gasket, and a steel ball hole is formed in the shell and used for placing a steel ball.
Furthermore, the shell is connected with the inner cavity of the outer ring in a sliding mode, an outer ring spring is arranged between the inner portion of the outer ring and the outer portion of the shell, the outer ring spring acts on the outer ring to play a role in carrying and locking the steel ball, an outer ring retaining ring is arranged at the opening of the shell, and the outer ring retaining ring is limited to the outer ring.
Further, when the shell is connected with the plug, the outer ring is pulled down, the steel ball floats, the plug is inserted into the shell, the plug valve core rod in the plug collides with the shell valve core rod in the shell, the plug valve core rod in the plug relatively moves towards the interior of the plug, the shell valve core rod in the shell relatively moves towards the interior of the shell, the shell valve core and the plug valve core collide, respective displacement is achieved, the plug and the shell are completely matched, the plug and the valve core in the shell are completely opened, the outer ring is released, the steel ball falls into a steel ball groove designed on the plug under the extrusion of the outer ring, the joint connection is achieved, and the valve is opened.
Further, after the shell is connected with the plug, fluid flows out from the shell through the shell valve seat, the shell valve core rod, the plug valve core rod and the plug valve seat.
Further, when the shell and the plug are disconnected, the outer ring is slid, so that the steel balls uniformly distributed on the shell float, the plug and the shell are mutually flicked under the action of the spring force of the valve core, the outer ring is loosened, the steel balls return, the connector is disconnected, and the pipeline is closed.
The invention has the beneficial effects that: the arc of the head of the plug valve core of the structure is symmetrically provided with two pressure relief holes, the arc of the head of the valve core of the shell is symmetrically provided with two pressure relief holes, the valve core rod is arranged in the valve core to form a pressure relief channel, when the plug is connected with the shell in a colliding way, the valve core rod in the plug and the shell is firstly contacted with the valve core, the valve core rod is pushed open in the colliding way and respectively displaces, the pressure relief channel is formed in the valve core, the pressure is relieved, the plug is continuously connected with the shell, the valve core in the inner cavities of the plug and the shell is contacted, the valve core in the colliding way is; the structure can ensure that the connector has the characteristic of low connecting force even if any end of the male connector and any end of the female connector have residual pressure, and the purpose of quick plugging and unplugging is achieved under the condition of pressure.
Drawings
Fig. 1 is a schematic view of an assembly structure of the present invention.
FIG. 2 is a schematic structural view of a male plug of the present invention;
fig. 3 is a schematic structural diagram of the female socket of the present invention.
In the figure: the plug comprises a shell 1, an outer ring 2, a plug 3, an outer ring spring 4, an outer ring retainer ring 5, a steel ball 6, an O-shaped ring 7, an O-shaped ring 8, a PTFE gasket 9, a plug valve core 10, a plug valve core rod 11, a plug valve seat 12, an O-shaped ring 13, a hole retainer ring 14, an O-shaped ring 15, a plug valve core spring 16, a shell valve core 17, a shell valve core rod 18, a shell valve seat 19, an O-shaped ring 20, a hole retainer ring 21, an O-shaped ring 22 and a shell valve core spring 23.
Detailed Description
In the present embodiment, the materials and components are specifically as follows: 45# housing 1, 45# outer ring 2, 45# plug 3, 65Mn outer ring spring 4, 65Mn outer ring retainer ring 5, bearing steel ball 6, nitrile rubber O-ring 7, nitrile rubber O-ring 8, tetrafluoro pad 9, 45# plug valve core 10, 45# plug valve core rod 11, 45# plug valve seat 12, nitrile rubber O-ring 13, 65Mn hole retainer ring 14, nitrile rubber O-ring 15, 65Mn plug valve core spring 16, 45# housing valve core 17, 45# housing valve core rod 18, 45# housing valve seat 19, nitrile rubber O-ring 20, 65Mn hole retainer ring 21, nitrile rubber O-ring 22, 65Mn housing valve core spring 23.
As shown in fig. 1 to 3, a novel valve core structure capable of being plugged and unplugged under pressure comprises a shell 1, an outer ring 2, a plug 3, a shell valve core 17, a plug valve core 10, a shell valve seat 19, a plug valve seat 12, a shell valve core rod 18, a plug valve core rod 11 and a sealing device, wherein the plug 3 is slidably connected with an inner cavity of the shell 1, and a taper hole is formed in the plug 3 and is in limit connection with the plug valve core 10, and the novel valve core structure is characterized in that the shell valve core 17, the shell valve seat 19, the shell valve core rod 18, the plug valve core rod 11 and the sealing material which are arranged in the shell 1 form;
the plug valve core 10, the plug valve seat 12, the plug valve core rod 11 and the sealing material arranged in the plug 3 form a valve core structure which can be plugged and unplugged under pressure. This structure can ensure the characteristic of low connection force even when there is residual pressure at either end of the male and female connectors.
Further, a hole retainer ring 14 is arranged in an inner cavity of the plug 3, the hole retainer ring 14 is connected with a plug valve seat 12 in a positioning mode, the plug valve seat 12 is connected with a plug valve core 10 in a limiting sliding mode, a plug valve core rod 11 is connected with the plug valve core 10 in a limiting sliding mode, a plug valve core spring 16 is limited between the plug valve seat 12 and the plug valve core rod 11, a raised head of the plug valve core 10 is correspondingly connected with a taper hole of the plug 3, and two pressure relief holes are symmetrically formed in the arc position of the head of the plug valve core 10 to achieve the purpose of plugging and unplugging under pressure.
A hole retainer 21 is arranged in an inner cavity of the shell 1, the hole retainer 21 is connected with a shell valve seat 19 in a positioning mode, the shell valve seat 19 is connected with a shell valve core 17 in a limiting sliding mode, a shell valve core rod 18 is connected with the shell valve core 17 in a limiting sliding mode, a shell valve core spring 23 is limited between the shell valve seat 19 and the shell valve core rod 18, and two pressure relief holes are symmetrically formed in the arc position of the head of the shell valve core 17 to achieve the purpose of plugging and unplugging under pressure.
Two sealing ring grooves are formed in the front end of the shell 1 and used for placing an O-shaped ring 7, an O-shaped ring 8 and a PTFE gasket 9, and the rubber sealing rings play a sealing role when the plug 3 is connected with the shell 1. The shell 1 is provided with a steel ball hole for placing a steel ball 6, and the steel ball 6 plays a role in connecting the plug and the shell. The inner cavities of the shell 1 and the outer ring 2 are in sliding connection, an outer ring spring 4 is arranged between the inside of the outer ring 2 and the outside of the shell 1, and the outer ring spring 4 acts on the outer ring 2 to have the effect of bearing and locking the steel ball 6. An outer ring retaining ring 5 is arranged at the opening of the shell 1 and plays a role in limiting the outer ring 2.
In this embodiment, when the plug 3 is connected to the housing 1: pulling down the outer ring 2 to enable the steel ball 6 to float, inserting the plug 3 into the shell 1, wherein the plug valve core rod 11 in the plug collides with the shell valve core rod 18 in the shell, the plug valve core rod 11 in the plug 3 moves relatively towards the plug 3, the shell valve core rod 18 in the shell 3 moves relatively towards the shell 3, pressure in a pipeline is removed, feasibility of continuous connection is guaranteed, then the plug valve core 10 and the shell valve core 17 in the plug 3 collide with each other and move respectively, the plug 3 and the shell 1 are completely matched with each other, at the moment, the valve cores in the plug 3 and the shell 1 are completely opened, the outer ring 2 is removed, the steel ball 6 falls into a steel ball groove designed on the plug 3 under extrusion of the outer ring 2, so that the joint connection is achieved, and the valve is opened.
After the plug 3 is connected with the shell 1: fluid is caused to flow out of the housing 1 via the housing valve seat 19, the housing valve core 17, the housing valve core rod 18, the plug valve core 10, the plug valve core rod 11, the plug valve seat 12.
When the plug 3 needs to be disconnected from the housing 1: the outer ring 2 is slid to enable the steel balls 6 which are uniformly distributed on the shell 1 to float, the plug 3 and the shell 1 are mutually flicked under the action of the spring force of the valve core, the outer ring 2 is loosened, the steel balls 6 return, the connector is disconnected, and the pipeline is closed.
The arc position of the head part of a plug valve core 10 of the structure is symmetrically provided with two pressure relief holes, the arc position of the head part of a shell valve core 17 is symmetrically provided with two pressure relief holes, a valve core rod is arranged in the valve core to form a pressure relief channel, when a plug 1 and a shell 3 are connected in a colliding mode, the valve core rods in the plug and the shell are firstly contacted with the valve core, the valve core rods are butted and jacked open and respectively displace, the pressure relief channel is formed in the valve core, the pressure is relieved, the plug 3 and the shell 1 are continuously connected, the valve cores in the inner cavities of the plug and the shell are contacted, the butted and jacked; the structure can ensure that the connector has the characteristic of low connecting force even if any end of the male connector and any end of the female connector have residual pressure, and the purpose of quick plugging and unplugging is achieved under the condition of pressure.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A novel valve core structure capable of being plugged and unplugged under pressure comprises a shell (1), an outer ring (2), a plug (3), a shell valve core (17), a plug valve core (10), a shell valve seat (19), a plug valve seat (12), a shell valve core rod (18), a plug valve core rod (11) and a sealing device, wherein the plug (3) is in sliding connection with an inner cavity of the shell (1), and a taper hole is formed in the plug (3) and is in limited connection with the plug valve core (10), and the novel valve core structure capable of being plugged and unplugged under pressure is characterized in that the shell valve core (17), the shell valve seat (19), the shell valve core rod (18), the plug valve core rod (11) and a sealing material which are arranged;
a plug valve core (10), a plug valve seat (12), a plug valve core rod (11) and sealing materials arranged in the plug (3) form a valve core structure which can be plugged and unplugged under pressure.
2. The novel valve core structure capable of being plugged and unplugged under pressure according to claim 1, wherein a hole retainer ring (14) is arranged in an inner cavity of the plug (3), the hole retainer ring (14) is connected with a plug valve seat (12) in a positioning manner, the plug valve seat (12) is connected with the plug valve core (10) in a limiting and sliding manner, a plug valve core rod (11) is connected with the plug valve core (10) in a limiting and sliding manner, a plug valve core spring (16) is limited between the plug valve seat (12) and the plug valve core rod (11), a raised head of the plug valve core (10) is correspondingly connected with a taper hole of the plug (3), and two pressure relief holes are symmetrically arranged at the arc position of the head of the plug valve core (10).
3. The novel valve core structure capable of being plugged and unplugged under pressure according to claim 1, is characterized in that a hole retainer ring (21) is arranged in an inner cavity of the shell (1), the hole retainer ring (21) is connected with a shell valve seat (19) in a positioning manner, the shell valve seat (19) is connected with the shell valve core (17) in a limiting and sliding manner, the shell valve core rod (18) is connected with the shell valve core (17) in a limiting and sliding manner, a shell valve core spring (23) is limited between the shell valve seat (19) and the shell valve core rod (18), and two pressure relief holes are symmetrically arranged at the arc position of the head of the shell valve core (17).
4. A novel valve core structure capable of being plugged and unplugged under pressure as claimed in claim 3, wherein the front end of the shell (1) is provided with two sealing ring grooves for placing an O-shaped ring and a PTFE gasket (9), and the shell (1) is provided with a steel ball hole for placing a steel ball (6).
5. The novel valve core structure capable of being plugged and unplugged under pressure as claimed in claim 4, wherein the housing (1) is slidably connected with an inner cavity of the outer ring (2), an outer ring spring (4) is arranged between the inside of the outer ring (2) and the outside of the housing (1), the outer ring spring (4) acts on the outer ring (2) to play a role in carrying and locking the steel ball (6), an outer ring retaining ring (5) is arranged at an opening of the housing (1), and the outer ring retaining ring (5) limits the outer ring (2).
6. The novel valve core structure capable of being plugged under pressure according to claim 5, characterized in that when the shell (1) is connected with the plug (3), the outer ring (2) is pulled down, the steel ball (6) floats, the plug (3) is inserted into the shell (1), the plug valve core rod (11) in the plug (3) collides with the shell valve core rod (18) in the shell (1), the plug valve core rod (11) in the plug (3) relatively moves towards the plug (3), the shell valve core rod (18) in the shell (1) relatively moves towards the shell (1), the shell valve core (17) and the plug valve core (10) collide with each other and respectively move, when the plug (3) and the shell (1) are completely matched, the valve cores in the plug (3) and the shell (1) are completely opened, the outer ring (2) is released, the steel ball (6) falls into a steel ball groove designed on the plug (3) under the extrusion of the outer ring (2), the valve is opened by this connection.
7. The novel valve core structure capable of being plugged and unplugged under pressure according to claim 6 is characterized in that after the shell (1) and the plug (3) are connected, fluid flows out from the shell (1) through a shell valve seat (19), a shell valve core (17), a shell valve core rod (18), a plug valve core (10), a plug valve core rod (11) and a plug valve seat (12).
8. The novel valve core structure capable of being plugged under pressure according to claim 7, wherein when the shell (1) and the plug (3) are disconnected, the outer ring (2) is slid to enable the steel balls (6) uniformly distributed on the shell (1) to float, the plug (3) and the shell (1) are bounced off from each other under the action of the valve core spring force, the outer ring (2) is loosened, the steel balls (6) return, the connector is disconnected, and the pipeline is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134931.6A CN111120754A (en) | 2020-03-02 | 2020-03-02 | Novel valve core structure capable of being plugged under pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010134931.6A CN111120754A (en) | 2020-03-02 | 2020-03-02 | Novel valve core structure capable of being plugged under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111120754A true CN111120754A (en) | 2020-05-08 |
Family
ID=70493601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010134931.6A Pending CN111120754A (en) | 2020-03-02 | 2020-03-02 | Novel valve core structure capable of being plugged under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120754A (en) |
-
2020
- 2020-03-02 CN CN202010134931.6A patent/CN111120754A/en active Pending
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