CN211118180U - Connecting module for quick gun holder and quick gun holder - Google Patents

Abstract

The utility model discloses a connecting module for a quick gun seat and the quick gun seat, which comprises a straight-through type one-way valve and a connecting sleeve, wherein two one-way valves are respectively a male one-way valve and a female one-way valve, and the liquid inlet ends of the two one-way valves are opposite to each other; the connecting sleeve is sleeved on the female check valve, and an annulus is formed between the connecting sleeve and the female check valve and on one side close to the liquid inlet end of the female check valve; the male check valves are inserted into the annular space and are detachably connected with the connecting sleeves, and the valve cores of the two check valves can be mutually contacted and generate thrust to each other to compress the valve core springs in the check valves, so that the check valves are in a passage state. The utility model discloses an once control the installation, can open the valve of liquid source end and the valve of receiving the liquid source end simultaneously, realize that the switching on public head, the female head of stock carries out chain control to make the switching that once only operates and to realize public head and female head simultaneously, reduce the operating procedure, improve work efficiency.

Description

Connecting module for quick gun holder and quick gun holder

Technical Field

The utility model relates to a valve field, concretely relates to a link module and quick stock for quick stock.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are divided into cast iron valves, cast steel valves, stainless steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves and the like according to the materials.

In the liquid adding process of substances such as CNG/L NG and the like, a liquid adding gun is needed for liquid adding, so that a liquid adding gun seat is needed.

Disclosure of Invention

The utility model aims to provide a: the utility model provides a connection module and quick stock for quick stock, solved current stock, the switching of public first female head is independent control respectively, leads to above-mentioned technical problem such as complicated, the loaded down with trivial details step of operation. The utility model discloses a connecting module and quick stock for quick stock will be used for the switching on public head, the female head of stock to carry out chain control to make the switching that once only operates can realize public head and female head simultaneously, reduce operating procedure, improve work efficiency.

The utility model adopts the technical scheme as follows:

the connecting module for the quick gun seat and the quick gun seat comprise a straight-through type one-way valve and a connecting sleeve, wherein the axes of the straight-through type one-way valve and the connecting sleeve are overlapped, the number of the two one-way valves is two, the two one-way valves are respectively a male one-way valve and a female one-way valve, and liquid inlet ends of the two one-way valves are opposite to each other;

the connecting sleeve is sleeved on the female check valve, the connecting sleeve and the female check valve move synchronously in the axial direction, and an annular space is formed between the connecting sleeve and the female check valve and on one side close to the liquid inlet end of the female check valve;

the feed liquor end of female first check valve can insert in the valve casing of public first check valve, and the valve body outer wall of female first check valve and the valve pocket sealing fit of public first check valve, and public first check valve inserts in the ring simultaneously in the sky to dismantle with the adapter sleeve and be connected, the case of two check valves can contact each other and produce thrust each other and compress the case spring in the check valve, thereby make the check valve all be in the access state.

Further, the connecting sleeve is in threaded connection with a valve body of the male check valve.

Further, still include locking assembly and follow locking block, stopper and the locating piece that public first check valve arranged in proper order to female first check valve along the check valve axis, the locking block is fixed on the outer wall of public first check valve, stopper and locating piece are all fixed on the connecting sleeve, locking assembly includes locking lever, locking spring and locating part, the locking lever is the second grade ladder shaft, and its path end inserts in the locating piece, and its major diameter end inserts in the locking block after passing the stopper, the locating part is located between stopper and the locating piece, and it is connected with the lateral wall of locking lever, the locking spring housing is established on the locking lever, and its both ends contact with locating part and locating piece respectively, and remove the locking lever to female first check valve, enable the locking spring compressed and the locking lever withdraws from the locking block.

Furthermore, the valve core is slidably installed in the valve cavity through the valve core seat, opposite ends among the valve cores are protruded outwards to form a contact section, opposite ends among the valve cores are protruded outwards to form a positioning section, in each one-way valve, the valve core spring is sleeved on the positioning section, two ends of the valve core spring are respectively contacted with the valve core and the valve core seat, and the contact sections of the one-way valves are contacted with each other.

Furthermore, a conical hole is formed in the tail end of one positioning section, and a circular truncated cone matched with the conical hole is formed in the outer protrusion of the tail end of the other positioning section.

The quick gun seat comprises a ball valve and a connecting module arranged at one port of the ball valve, the connecting module comprises a straight-through type one-way valve and a connecting sleeve, the axes of the straight-through type one-way valve and the connecting sleeve are overlapped, the number of the one-way valves is two, the two one-way valves are respectively a male one-way valve and a female one-way valve, and liquid inlet ends of the two one-way valves are opposite to each; the connecting sleeve is sleeved on the female check valve, the connecting sleeve and the female check valve move synchronously in the axial direction, and an annular space is formed between the connecting sleeve and the female check valve and on one side close to the liquid inlet end of the female check valve; the liquid inlet end of the female one-way valve can be inserted into the valve casing of the male one-way valve, the outer wall of the valve body of the female one-way valve is in sealing fit with the valve cavity of the male one-way valve, meanwhile, the male one-way valve is inserted into the annular space and is detachably connected with the connecting sleeve, the valve cores of the two one-way valves can be mutually contacted and generate thrust to each other to compress the valve core spring in the one-way valve, so that the one-way valves are all in a passage state, and the liquid outlet end of any one-way valve is communicated with the port of the ball valve.

Further, a valve body of the check valve communicating with the port of the ball valve is integrally formed with the valve body of the ball valve.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses a connection module and quick gun seat for quick gun seat through once controlling the installation, can open the valve of liquid source end and receive the valve of liquid source end simultaneously, realizes that the switching on public head, the female head of gun seat carries out interlocking control to make one-time operation can realize the switching of public head and female head simultaneously, reduce the operating procedure, improve work efficiency;

2. the utility model discloses a connection module and quick gun seat for quick gun seat, after accomplishing the liquid source and carrying, close the ball valve, withdraw from public first check valve from the annular space, two case lose come from behind each other thrust, get back to the normal position under the restoring force effect of self case spring, push up tightly in the valve pocket with the case seal fit on the structure to realize closing when public head, female head, need not to operate public head, female head respectively and realize closing of each valve, improved the utility model discloses a convenience of use;

3. the utility model discloses a connection module and quick gun seat for quick gun seat, will independently come out with spiral groove complex protruding structure from the adapter sleeve, be convenient for to the inner wall finish machining of adapter sleeve and the determination of protruding structure overall dimension, reduced the utility model discloses a processing degree of difficulty;

4. the utility model is used for connection module and quick stock of quick stock, when public first check valve and female first check valve cooperation, because locking lever and locking through-hole cooperation lead to the unable relative adapter sleeve of public first check valve to independently rotate, can not become flexible along helical connection structure then to the stability of being connected between public first check valve and the adapter sleeve has been guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, and the proportional relationship of each component in the drawings in the present specification does not represent the proportional relationship in the actual material selection design, and is only a schematic diagram of the structure or the position, in which:

FIG. 1 is a schematic structural diagram of a connection module;

FIG. 2 is a schematic structural view of a female check valve;

FIG. 3 is a top view of the female check valve;

FIG. 4 is a schematic structural view of a male check valve;

FIG. 5 is a top view of the male check valve;

fig. 6 is a schematic view of the structure of the quick gun mount.

Reference numerals in the drawings indicate:

1-male check valve, 2-female check valve, 3-connecting sleeve, 4-spool spring, 5-annulus, 6-locating block, 7-installation through hole, 8-locking block, 9-locking through hole, 10-locking rod, 11-locking spring, 12-limiting block, 13-limiting block, 14-contact section, 15-locating section, 16-spool seat, 17-conical hole, 18-circular table, 19-ball valve, 20-spool, 21-steel ball, 22-threaded hole, 23-set screw, 24-support ring, 25-O-ring, 26-D-ring, 27-helical groove, 28-bearing ring, 29-bearing pin, 30-cap nut, 31-spring washer, 32-L-shaped plate, 33-mating block, 34-driving arm, 35-sealing pad, 36-end cavity, 37-middle cavity, 38-tail cavity, 39-ball valve packing, 40-packing box, 41-gland, 42-disc pad, 43-disc handle, 44-ball valve handle, 45-ball valve pad, 46-ball valve rod, instrument valve joint and instrument valve joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 6.

The utility model discloses in, the feed liquor end of check valve is only injectd for the structural action of opening and close of valve self with going out the liquid end, and not according to the utility model discloses actual in service behavior, specifically, the feed liquor end of check valve can promote the one end of case promptly for the feed liquor end.

Example 1

As shown in fig. 1-6, the utility model discloses a connection module for quick stock, including axis coincident straight-through check valve and adapter sleeve 3 each other, there are two check valves, be male check valve 1 and female check valve 2 respectively, its inlet end is relative each other, in the through-through check valve that the utility model adopts, the moving trajectory of its case is unanimous with the circulation orbit of fluid;

the connecting sleeve 3 is sleeved on the female check valve 2, the connecting sleeve 3 and the female check valve 2 move synchronously in the axial direction, and an annular space 5 is formed between the connecting sleeve 3 and the female check valve 2 and on one side close to the liquid inlet end of the female check valve; the feed liquor end of female check valve 2 can insert in the valve casing of public first check valve 1, and the valve body outer wall of female check valve 2 and the valve pocket sealing fit of public first check valve 1, public first check valve 1 inserts in the ring simultaneously to dismantle with adapter sleeve 3 and be connected, the case 20 of two check valves can contact each other and produce the case spring 4 in the thrust compression check valve each other, thereby makes the check valve all be in the access state.

The connecting sleeve 3 can be fixedly connected with the valve body of the female check valve 2, such as welded or screwed, or can be rotatably connected. When the rotary connection is adopted, the friction loss generated in the process from the initial contact position to the stable contact position of the two valve cores can be prevented. The rotary connection is realized by adopting the following scheme: annular grooves are formed in the outer wall of the valve body of the female check valve 2 and the inner wall of the connecting sleeve 3, the axis of each annular groove coincides with the axis of the corresponding check valve, the cross section of each annular groove is semicircular, and notches of the two annular grooves are opposite to form an annular channel with a circular cross section. A plurality of steel balls 21 are sequentially arranged in the channel along the circumferential direction, and the ball diameter of each steel ball 21 is consistent with the diameter of the annular channel.

A threaded hole 22 communicated with the annular groove is preferably arranged on the outer wall of the connecting sleeve 3, the aperture of the threaded hole is not smaller than the spherical diameter of the steel ball 21, and a set screw 23 is in threaded connection with the threaded hole. During assembly, the connecting sleeve 3 and the female check valve are axially positioned, then the steel balls 21 are placed into the threaded holes 22, and the set screws 23 are selected into the threaded holes 22 to seal the threaded holes 22.

Preferably, an annular supporting groove is arranged on the inner wall of the connecting sleeve 3 and on one side of the annular groove far away from the male check valve 1, the axis of the annular supporting groove coincides with the axis of the connecting sleeve 3, a supporting ring 24 is arranged in the supporting groove, and the inner wall of the supporting ring 24 is matched with the outer wall of the female check valve.

The annular space 5 is formed as follows: the valve body of the female check valve 2 is a rotating body, one end of the female check valve facing the male check valve 1 is a small-diameter section, the other end of the female check valve is a large-diameter section, the annular groove in the valve body of the female check valve 2 is located on the large-diameter section of the female check valve through the matching of the large-diameter section and the inner hole of the connecting sleeve 3, and the small-diameter section and the inner hole of the connecting sleeve 3 form an annular space for inserting the male check valve.

The valve body outer wall of the female check valve 2 is matched with the valve cavity of the male check valve 1 in a sealing way, and the sealing way is realized through the following scheme: the external diameter that inserts in the public first check valve 1 on the female check valve 2 is unanimous with the internal diameter that public first check valve 1 inserted in annular space 5, is provided with the ring channel that a plurality of axes all coincide with the axis of check valve on the valve pocket of public first check valve 1, installs the sealing washer in the ring channel, the sealing washer is O type circle or D shape circle, and the internal diameter of here sealing washer and the valve body interference fit of female first check valve to guarantee the leakproofness between the outer wall of female first check valve and the chamber wall of public first check valve.

In practice, the male check valve 1 is preferably fixed on the outlet pipe of the liquid source, and the female check valve 2 is preferably fixed on the inlet pipe of the receiving end of the liquid source. When fluid is required to be conveyed, one end of the male check valve 1 is inserted into the annular space 5, and the connecting sleeve 3 is detachably connected with the valve body of the male check valve 1 in a threaded connection mode, a clamping connection mode, a bolt fixing mode, an electromagnetic connection mode and the like. With the male check valve 1 inserted into the annular space 5, the valve cores 20 of the two check valves contact with each other and push each other, and the valve cores 20 move toward the liquid outlet end of the check valve relative to the corresponding valve body, so that the check valve is opened. And then, starting a ball valve on the liquid source equipment to enable the liquid source to pass through a valve on the gas source and then enter equipment for receiving the liquid source after sequentially passing through the male check valve 1 and the female check valve.

The utility model discloses in, through once controlling the installation, can open the valve of liquid source end and the valve of receiving the liquid source end simultaneously, realize that switching on public head, the female head of stock carries out chain control to make the switching that once only operates and to realize public head and female head simultaneously, reduce the operating procedure, improve work efficiency.

After accomplishing the liquid source and carrying, close the ball valve, withdraw from public first check valve 1 from annular space 5, two case lose come from behind each other's thrust, get back to the normal position under self case spring 4's restoring force effect, the top is tightly structural with the case seal fit in the valve pocket to realize closing when public head, female head, need not to operate respectively public head, female head and realize closing of each valve, improved the utility model discloses a convenience in use.

Example 2

In this embodiment, a specific embodiment of the detachable connection between the connection sleeve 3 and the valve body of the male check valve 1 is described on the basis of embodiment 1.

The utility model discloses in, adapter sleeve 3 and public first check valve 1's valve body threaded connection. Here, the screw connection may be made by a conventional screw structure, that is, a screw thread is provided on the inner wall of the connection sleeve 3, and a screw thread matching with the screw thread is provided on the outer wall of the male check valve 1.

In the present invention, as shown in fig. 2 to 5, the threaded connection can also adopt the following structure: a spiral groove 27 is formed in the outer wall of the valve body of the male check valve 1, the rotating center line of the spiral groove 27 is overlapped with the axis of the check valve, one end of the spiral groove 27, which is close to the female check valve 2, is an open end, and the other end of the spiral groove is a closed end; a convex structure matched with the spiral groove 27 is arranged on the inner wall of the connecting sleeve 3, and the convex structure is inserted into the spiral groove 27 from the open end of the spiral groove 27 until the convex structure rotates to the closed end of the spiral groove 27.

In actual production, the roughness of the matching surface between the male check valve 1 and the connecting sleeve 3 is low, if a protruding structure is directly formed on the inner wall of the connecting sleeve 3 for matching with the spiral groove 27, the difficulty of finish machining of the inner wall of the connecting sleeve 3 is increased, and the size of the protruding structure is not convenient to determine. Therefore, in actual production, the protruding structure is separated from the connecting sleeve 3 and is detachably mounted on the connecting sleeve 3. Specifically, the convex structure comprises a bearing ring 28, a bearing pin 29, a cap nut 30 and a spring washer 31, wherein the axes of the bearing ring 28, the bearing pin 29, the cap nut 30 and the spring washer 31 coincide with each other, the bearing ring 28 is positioned in the inner hole of the connecting sleeve 3, and the rod end of the bearing pin 29 penetrates through the bearing ring, the side wall of the connecting sleeve 3 and the spring washer 31 to be in threaded connection with the cap nut 30. The head of the bearing pin 29 presses the bearing ring 28 against the inner wall of the connecting sleeve 3, preferably the bearing pin 29 is a countersunk pin, the outer diameter of the bearing ring 28 corresponding to the distance between the groove walls on both sides of the spiral groove. Will independently come out from the adapter sleeve through the aforesaid with helicla flute 27 complex protruding structure, be convenient for to the inner wall finish machining of adapter sleeve 3 and the definite of protruding whole size of structure, reduced the utility model discloses a processing degree of difficulty.

When the utility model adopts the screw connection mode to connect the connecting sleeve 3 and the valve body of the male check valve, the locking assembly and the locking block 8, the limiting block 12 and the positioning block 6 which are sequentially arranged from the male check valve 1 to the female check valve 2 along the axis of the check valve are preferably included, the locking block 8 is fixed on the outer wall of the male check valve 1, the limiting block 12 and the positioning block 6 are both fixed on the connecting sleeve 3, the locking assembly includes the locking rod 10, the locking spring 11 and the limiting block 13, the locking rod 10 is a secondary stepped shaft, the small diameter end of the locking rod is inserted into the positioning block 6, the large diameter end of the locking rod is inserted into the locking block 8 after passing through the limiting block 12, the limiting block 13 is positioned between the limiting block 12 and the positioning block 6 and is connected with the side wall of the locking rod 10, the locking spring 11 is sleeved on the locking rod 10, and the two, and moving the locking lever 10 towards the female check valve 2 enables the locking spring 11 to be compressed and the locking lever 10 to be withdrawn from the locking block 8.

The positioning block 6 and the limiting block 12 are respectively provided with an installation through hole 7 and a limiting through hole for the locking rod 10 to insert or pass through, the locking block 8 is provided with a locking through hole 9 for the locking rod 10 to insert, and the axes of the installation through hole 7, the locking through hole 9 and the limiting through hole are coaxial with each other and are parallel to the axis of the one-way valve.

When public first check valve 1 and female first check valve 2 cooperate, because locking lever 10 and the cooperation of locking through-hole 9, lead to public first check valve can't independently rotate relative adapter sleeve 3, then can not become flexible along helical connection structure to the stability of being connected between public first check valve 1 and the adapter sleeve 3 has been guaranteed.

At this time, the connection between the male check valve 1 and the female check valve 2 is specifically as follows: the locking spring 11 is compressed so that the large-diameter end of the locking lever does not pass through the installation through-hole, and then the male check valve 1 or the connection sleeve is rotated along the screw structure to complete the screw connection. At this time, the axes of the installation through-hole 7, the lock through-hole 9, and the stopper through-hole are coaxial with each other, and then the external force acting on the lock spring 11 is unloaded, and the large-diameter end of the lock lever is inserted into the lock through-hole 9 by the restoring force of the lock spring 11.

When the male check valve 1 and the female check valve 2 are separated, the locking spring 11 is compressed so that the large-diameter end of the locking rod is not inserted into the locking through-hole 9, and then the male check valve 1 or the connection sleeve is rotated in the reverse direction along the screw structure to release the screw connection.

The stopper 13 is preferably composed of L-shaped plate 32, fitting block 33 and driving arm 34, wherein the vertical plate of L-shaped plate is perpendicular to the axis of the locking rod and is sleeved on the side of the small-diameter shaft body of the locking rod close to the large-diameter shaft body, the horizontal plate of L-shaped plate is located above the locking rod, the tail end of the horizontal plate is connected with the fitting block, and the fitting block is provided with a through hole for the locking rod and the locking spring 11 to pass through.

Example 3

This embodiment is about the utility model discloses well case structure carries out the concrete implementation explanation.

As shown in fig. 2 and 4, in the present invention, the valve core 20 is slidably mounted in the valve cavity through the valve core seat 16, the opposite ends of the valve core 20 are all protruded to form the contact section 14, the opposite ends of the valve core are all protruded to form the positioning section 15, in each check valve, the valve core spring 4 is sleeved on the positioning section 15, the two ends of the valve core are respectively contacted with the valve core 20 and the valve core seat 16, and the contact sections 14 of the check valves are contacted with each other. The contact section 14 transitions smoothly onto the valve slide end face.

The valve core seat 16 is specifically a cylinder body with a central through hole, the positioning section 15 is matched with the central through hole of the cylinder body, the side wall of the cylinder body protrudes outwards along a certain circumference to form a circular disc, preferably, the circular disc is in threaded connection with the valve cavity, and a plurality of through holes facilitating fluid circulation are arranged on the circular disc. Preferably, a spring mounting hole is arranged on the cylinder, the axis of the spring mounting hole coincides with the axis of the one-way valve, and the aperture of the spring mounting hole is larger than that of the central through hole of the cylinder. One end of the valve core spring 4 is contacted with the valve core, and the other end of the valve core spring is inserted into the spring mounting hole and contacted with the bottom of the spring mounting hole.

The valve pocket of check valve is including communicating in proper order and coaxial while being end chamber 36, lumen 37 and tail chamber 38 of revolution mechanic, and the diameter of lumen 37 is greater than the diameter of end chamber 36 and tail chamber 38, and end chamber 36 is the inlet end of check valve self, and contact segment 14 is located end chamber 36, circular dish and tail chamber 38 thread joint, case 20 are located lumen 37 to can contact with the chamber wall of the junction of lumen 37 with end chamber 36, cut apart into two independent cavities with end chamber 36 and lumen 37. And preferably the valve core 20 and the middle cavity 37 are sealed by a conical surface, and an annular groove is arranged at the position of the valve core 20, which can be contacted with the middle cavity 37, the axis of the annular groove is coincident with the axis of the one-way valve, and a sealing ring, preferably an O-shaped sealing ring, is arranged in the annular groove. When the one-way valve is required to maintain the access state, the contact section is pushed to compress the valve core spring 4 so that the valve core 20 moves towards the tail cavity 38, and when the valve core 20 is separated from the cavity wall, the valve is in the access state. At this time, in the male check valve 1, the fluid enters the end cavity 36 of the female check valve 2 from the tail cavity 38, the middle cavity 37 and the end cavity 36 thereof in sequence, and then enters the fluid receiving end after passing through the middle cavity 37 and the tail cavity 38 of the female check valve 2 in sequence.

Preferably, a seal 35 is provided on the tail cavity 38 between the end adjacent the central cavity 37 and the circular disk.

Furthermore, a conical hole 17 is formed in the tail end of one of the positioning sections 15, and a circular truncated cone 18 matched with the conical hole 17 is formed in the tail end of the other positioning section 15 in an outward protruding mode. Preferably, the conical hole 17 is arranged on the valve core of the male check valve 1, and the circular truncated cone 18 is arranged on the valve core of the female check valve 2.

Example 4

The quick gun seat comprises a ball valve 19 and a connecting module arranged at one port of the ball valve 19, wherein the connecting module comprises a straight-through one-way valve and a connecting sleeve 3, the axes of which are superposed with each other, the number of the one-way valves is two, namely a male one-way valve 1 and a female one-way valve 2, and the liquid inlet ends of the two one-way valves are opposite to each other;

the connecting sleeve 3 is sleeved on the female check valve 2, the connecting sleeve 3 and the female check valve 2 move synchronously in the axial direction, and an annular space 5 is formed between the connecting sleeve 3 and the female check valve 2 and on one side close to the liquid inlet end of the female check valve; the liquid inlet end of the female check valve 2 can be inserted into the valve casing of the male check valve 1, the outer wall of the valve body of the female check valve 2 is in sealing fit with the valve cavity of the male check valve 1, meanwhile, the male check valve 1 is inserted into the annular space and is detachably connected with the connecting sleeve 3, valve cores 20 of the two check valves can be mutually contacted and generate thrust to each other to compress a valve core spring 4 in the check valve, and therefore the check valves are all in a passage state, and any liquid outlet end of the check valve is communicated with the port of the ball valve. Here, it is preferable to use the liquid outlet end of the male check valve 1 to communicate with the port of the ball valve, i.e. the tail cavity of the male check valve communicates with the port of the ball valve. The utility model discloses in, the concrete structure of check valve is not limited, adopt through can. Like this arbitrary two these kind check valves, the homoenergetic promotes each other through the case and realizes opening of each check valve simultaneously, has improved convenience and work efficiency that use to can prevent to forget when separating two check valves and close the condition appearance of one of them or two check valves, separate the check valve and can close each check valve simultaneously.

Further, a valve body of the check valve communicating with the port of the ball valve 19 is integrally formed with the valve body of the ball valve 19.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions conceived by the inventive work within the technical scope disclosed by the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (7)

1. A connection module for quick stock, its characterized in that: the device comprises a straight-through type one-way valve and a connecting sleeve (3), wherein the axes of the straight-through type one-way valve and the connecting sleeve are overlapped, the number of the one-way valves is two, the two one-way valves are respectively a male one-way valve (1) and a female one-way valve (2), and liquid inlet ends of the two one-way valves are opposite to each other;

the connecting sleeve (3) is sleeved on the female check valve (2), the connecting sleeve (3) and the female check valve (2) move synchronously in the axial direction, and an annular space (5) is formed between the connecting sleeve (3) and the female check valve (2) and on one side close to the liquid inlet end of the female check valve;

the feed liquor end of female first check valve (2) can insert in the valve casing of public first check valve (1), and the valve body outer wall of female first check valve (2) and the valve pocket seal fit of public first check valve (1), public first check valve (1) inserts in the ring simultaneously, and dismantle with adapter sleeve (3) and be connected, case (20) of two check valves can contact each other and to producing case spring (4) in the thrust compression check valve each other, thereby make the check valve all be in the access state.

2. The connection module for a quick mount as claimed in claim 1, wherein: the connecting sleeve (3) is in threaded connection with the valve body of the male check valve (1).

3. The connection module for a quick mount according to claim 2, wherein: also comprises a locking component, a locking block (8), a limiting block (12) and a positioning block (6) which are sequentially arranged from the male check valve (1) to the female check valve (2) along the axis of the check valve, the locking block (8) is fixed on the outer wall of the male check valve (1), the limiting block (12) and the positioning block (6) are both fixed on the connecting sleeve (3), the locking assembly comprises a locking rod (10), a locking spring (11) and a limiting piece (13), the locking rod (10) is a secondary stepped shaft, the small diameter end is inserted into the positioning block (6), the large diameter end is inserted into the locking block (8) after passing through the limiting block (12), the limiting piece (13) is positioned between the limiting piece (12) and the positioning block (6), the locking device is connected with the side wall of the locking rod (10), the locking spring (11) is sleeved on the locking rod (10), and two ends of the locking spring are respectively contacted with the limiting piece (13) and the positioning block (6).

4. The connection module for a quick mount as claimed in claim 1, wherein: the valve core (20) is slidably mounted in the valve cavity through the valve core seat (16), opposite ends of the valve core (20) protrude outwards to form a contact section (14), opposite ends of the valve core (20) protrude outwards to form a positioning section (15), the opposite ends of the opposite ends protrude outwards to form a positioning section (15), in each one-way valve, the valve core spring (4) is sleeved on the positioning section (15), two ends of the valve core spring are respectively contacted with the valve core (20) and the valve core seat (16), and the contact sections (14) of the one-way valves are contacted with each other.

5. The connection module for a quick mount as claimed in claim 4, wherein: the tail end of one positioning section (15) is provided with a conical hole (17), and the tail end of the other positioning section (15) protrudes outwards to form a circular truncated cone (18) matched with the conical hole (17).

6. Quick stock, including ball valve (19) and set up the connection module at a port department of ball valve (19), its characterized in that: the connecting module is as claimed in any one of claims 1 to 5, and the liquid outlet end of any one-way valve is communicated with the port of the ball valve.

7. The quick mount as set forth in claim 6 wherein: and the valve body of the one-way valve communicated with the port of the ball valve (19) is integrally formed with the valve body of the ball valve (19).

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