CN112747158A

CN112747158A - Detachable combined valve structure

Info

Publication number: CN112747158A
Application number: CN202110128361.4A
Authority: CN
Inventors: 王坤; 金克雨; 尚玉来; 林继兴; 童先; 郝汀; 魏爱平; 孔祥威
Original assignee: Zhejiang Industry and Trade Vocational College
Current assignee: Zhejiang Industry and Trade Vocational College
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-05-04

Abstract

The invention discloses a detachable combined valve structure, which comprises a connecting cylinder, a filter screen arranged in the connecting cylinder, and a pressing sleeve inserted in the connecting cylinder and pressed on the filter screen, half shell of first valve body and half shell of second valve body that the combination is in the same place, inject case body and regulation locking mechanical system between half shell of first valve body and half shell of second valve body, have the linking pipeline that communicates with the valve pocket on the valve body ring flange of half shell of first valve body, adjust locking mechanical system and establish the unsteady sliding sleeve on linking the pipeline including the cover, be connected with a plurality of elasticity pieces that reset between unsteady sliding sleeve and the valve body ring flange, the unsteady sliding sleeve actuating mechanism who sets up on the valve body ring flange is used for driving unsteady sliding sleeve to keep away from the counter bore that the valve body ring flange made unsteady sliding sleeve insert the pressure cover, it fills up to be equipped with sealed between pressure cover. The invention is convenient to detach and replace parts in the using process, and can not damage the valve body and the sealing performance.

Description

Detachable combined valve structure

Technical Field

The invention relates to the field of valves, in particular to a detachable combined valve structure.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and has various varieties and specifications, but is generally divided into an integral type and a combined type according to the structure type, the integral type valve has simple structure and low production cost, but is troublesome to disassemble orderly when parts are damaged in the valve, difficult to replace independently, high in maintenance cost, and difficult to ensure the sealing property of a welding part, so that the integral type valve needs to be replaced integrally and wastes resources; common combination formula valve is structure as an organic whole usually in the use, and link up the in-process and adopt the cooperation of concave-convex face to connect usually, make the structure reliable, when the valve needs the maintenance, wholly demolish combination formula valve, then unpack combination formula valve apart and change spare part, when the valve is connected in the rigidity pipeline, because the valve is the rigidity piece, therefore the valve that has connected can be difficult for dismantling, and can make the clearance between two mouths of pipe that the valve needs to be connected change after the dismouting many times, the valve is difficult to guarantee with the leakproofness of tube coupling department after the valve installation, and then can influence the use.

Disclosure of Invention

In view of the above, the present invention provides a detachable combination valve structure to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a detachable combined valve structure comprises a connecting cylinder fixedly connected with a flow pipeline, a filter screen arranged in the connecting cylinder, a valve core body inserted in the connecting cylinder and pressed against a pressing sleeve on the filter screen, a first valve body half shell and a second valve body half shell which are combined together, and a floating sliding sleeve arranged on the connecting pipeline in a sleeved mode, wherein a plurality of elastic reset pieces are connected between the floating sliding sleeve and the valve body flange, a floating sliding sleeve driving mechanism arranged on the valve body flange is used for driving the floating sliding sleeve to be away from the valve body flange so that the end part of the floating sliding sleeve is inserted into a counter bore of the pressing sleeve, and the linking pipeline is coaxially communicated with the pressing sleeve, a sealing gasket is arranged between the pressing sleeve and the floating sliding sleeve, and a sealing element is arranged between the floating sliding sleeve and the linking pipeline.

Further, the floating sliding sleeve driving mechanism comprises a plurality of driving heads which are distributed along an annular shape and are installed on a convex ring along radial threads, the convex ring is located on the outer end face of the valve body flange, the connecting pipeline is located in the convex ring, and the outer conical surface of the frustum head of the driving head is attached to and connected with the guiding conical surface of the floating sliding sleeve.

Furthermore, the valve body flange plate is in threaded connection with a plurality of locking bolts, the end portions of the locking bolts can be inserted into corresponding limiting holes in the pressing sleeve flange plate of the pressing sleeve, and the locking bolts and the driving head are arranged in a staggered mode.

Further, the sealing member is established including the cover first sealing washer and the second sealing washer on the linking pipeline, first sealing washer with be equipped with a plurality of annular distributions between the second sealing washer and bulldoze the spring, threaded connection is in locking cover on the linking pipeline tip will first sealing washer is injectd on the linking pipeline, the second sealing washer supports to press and is located on the retaining ring in the sliding sleeve that floats, just the retaining ring with linking pipeline sliding fit connects.

Further, the elastic reset piece is a tension spring.

Further, the two sides of the filter screen are respectively provided with a third sealing ring, the third sealing ring comprises a sealing ring body, the outer side surface and the inner side surface of the corresponding position of the sealing ring body are respectively provided with an annular groove with a concave arc-shaped cross section, and the annular groove is connected with a corresponding annular clamping convex block on the third sealing ring to realize the installation and fixation of the third sealing ring.

Furthermore, a plurality of supporting assemblies distributed in an annular mode are arranged in the sealing ring body, each supporting assembly comprises a wave elastic sheet and an arc elastic sheet, the wave elastic sheets and the arc elastic sheets are located on two sides of the annular groove respectively, the arc elastic sheets are close to the filter screen, and the arc elastic sheets and the wave elastic sheets extend along the radial direction of the sealing ring body.

Furthermore, a clamping sleeve is respectively connected between the connecting cylinder and the pressing sleeve and between the pressing sleeve and the valve body flange.

The technical scheme can show that the invention has the advantages that: by adopting the structure, the rigid friction between the valve and the circulating pipelines when the valve is installed or removed can be avoided, the distance between the two groups of circulating pipelines is stable, and the valve cannot be damaged; when the filter screen needs to be replaced or cleaned, the floating sliding sleeve is firstly loosened, then the valve body is taken down, the pressing sleeve is taken down to replace or clean the filter screen, the whole process is a flexible process, any part cannot be damaged, the sealing performance is stable after installation, each sealing ring is convenient to replace, parts are convenient to replace, and the valve is simple and convenient to install and disassemble.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial structural schematic diagram of the present invention.

Fig. 3 is a schematic view of the installation structure of the sealing member of the present invention.

Fig. 4 is a schematic structural diagram of a third seal ring according to the present invention.

List of reference numerals: the valve body comprises a connecting cylinder 1, a filter screen 2, a third sealing ring 3, a sealing ring body 31, an annular groove 32, a wave spring sheet 33, an arc spring sheet 34, a pressing sleeve 4, a pressing sleeve body 41, a pressing sleeve flange 42, a counter bore 43, a sealing gasket 5, a first valve body half shell 6, a valve body flange 61, a convex ring 62, a connecting pipeline 63, a locking sleeve 64, a locking bolt 65, a first sealing ring 66, a pushing spring 67, a second sealing ring 68, an adjusting and locking mechanism 7, a floating sliding sleeve 71, a guide conical surface 711, a retainer ring 712, a driving head 72, a tension spring 73, a second valve body half shell 8, a valve body 9 and a clamping sleeve 10.

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.

Referring to fig. 1 to 4, the present application is further explained, for example, a detachable combined valve structure shown in fig. 1 includes a connecting cylinder 1 capable of being fixedly connected to a flow conduit, a filter net 2 placed in the connecting cylinder 1, a pressing sleeve 4 inserted in the connecting cylinder 1 and abutting against the filter net 2, a first valve body half-shell 6 and a second valve body half-shell 8 combined together, and a valve body 9 and an adjusting and locking mechanism 7 defined between the first valve body half-shell 6 and the second valve body half-shell 8, an engaging pipe 63 communicating with a valve cavity is provided on an outer end surface of a valve body flange 61 of the first valve body half-shell 6, the second valve body half-shell 8 is fixedly connected to another flow conduit, wherein the adjusting and locking mechanism 7 includes a floating sliding sleeve 71 sleeved on the engaging pipe 63, the floating sliding sleeve 71 and the valve body flange 61 are connected to a plurality of elastic reset members, set up and be in unsteady sliding sleeve actuating mechanism on the valve body ring flange 61 is used for the drive unsteady sliding sleeve 71 is kept away from valve body ring flange 61 makes the tip of unsteady sliding sleeve 71 insert the counter bore 43 of pressing cover 4 realizes press cover 4 with the intercommunication that links up pipeline 63, elasticity resets and is used for making unsteady sliding sleeve 71 is close to valve body ring flange 61, just link up pipeline 63 with press the coaxial intercommunication setting of cover 4, press cover 4 with it makes to connect the leakproofness good to be equipped with sealed 5 messenger between the unsteady sliding sleeve 71, unsteady sliding sleeve 71 with it makes to link up to be equipped with the sealing member between the pipeline 63 unsteady sliding sleeve 71 with it is good to link up pipeline 63 junction leakproofness.

Preferably, the elastic restoring member is a tension spring 73.

Connecting cylinder 1 with press between the cover 4 with press cover 4 with respectively connect a cutting ferrule 10 between the valve body ring flange 61, cutting ferrule 10 avoids connecting cylinder 1, filter screen 2 break away from at will with pressing cover 4 and cause the part to lose, and can reduce the dust and get into connecting cylinder 1 with press between the cover 4 and press cover 4 with valve body ring flange 61, wherein, cutting ferrule 10 includes C shape elastic sleeve and sets up the baffle at C shape elastic sleeve both ends is located spacing protruding on the 1 lateral surface of connecting cylinder with be located press the spacing protruding of correspondence on the cover 4 to be injectd between two baffles.

As shown in fig. 2, the floating sliding sleeve driving mechanism includes a plurality of driving heads 72 distributed along a ring shape and mounted on the flange ring 62 along a radial direction by screw threads, the flange ring 62 is located on the outer end face of the valve body flange 61, and the connecting pipe 63 is positioned in the convex ring 62, the outer conical surface of the frustum head of the driving head 72 is attached and connected with the guiding conical surface 712 of the floating sliding sleeve 71, the floating sliding sleeve 71 is driven to reliably contact with the sealing gasket 5 by rotating the driving head 72, the sealing performance is not influenced by the size of a gap between two flow pipelines, the sealing performance of the connection is good, after the floating sliding sleeve 71 is separated from the pressing sleeve 4, a certain gap is reserved between the connecting pipeline 63, the convex ring 62 and the floating sliding sleeve 71 and the pressing sleeve 4, so that the valve body is convenient to disassemble, and damage or influence on sealing performance caused by rigid installation or disassembly of the valve can be avoided.

Threaded connection has a plurality of locking bolts 65 on the valve body ring flange 61, the tip of locking bolt 65 can insert to be located press the spacing downthehole of the correspondence on the cover ring flange 42 of pressing of cover 4, press cover ring flange 42 fixed connection in the one end of the cover body 41, the cover body 41 inserts in the connecting cylinder 1, just locking bolt 65 with the setting of drive head 72 dislocation, valve installation back, locking bolt 65 roof pressure press the cover 4 makes press the cover 4 with filter screen 2 is reliably connected, also can play the effect of pre-connection, also can be right floating sliding sleeve actuating mechanism's bearing capacity carries out certain dispersion, makes structure safe and reliable.

As shown in fig. 3, the sealing member is established including the cover first sealing washer 66 and the second sealing washer 68 on linking up the pipeline 63, first sealing washer 66 with be equipped with a plurality of annular distributions between the second sealing washer 68 and bulldoze spring 67, threaded connection in linking up locking cover 64 on the pipeline 63 tip will first sealing washer 66 is injectd on linking up the pipeline 63, second sealing washer 68 supports to press and is located retaining ring 712 in the sliding sleeve 71 floats, just retaining ring 712 with linking up pipeline 63 sliding fit connects, adopts above-mentioned structure, makes first sealing washer 66 with second sealing washer 68 is convenient to be changed, easily installs, and avoids the sealing member to appear excessively extrudeing and cause the damage, increase of service life, also makes drive head 72 adjustment in-process resistance little, easy and simple to handle.

As shown in fig. 1 and 4, two sides of the filter screen 2 are respectively provided with a third sealing ring 3, the third sealing ring 3 comprises a sealing ring body 31, the outer side surface and the inner side surface of the corresponding position of the sealing ring body 31 are respectively provided with an annular groove 32 with a concave arc cross section, and the annular groove 32 is connected with a corresponding annular snap on the third seal ring 3 to realize the installation and fixation of the third seal ring 3, wherein, a plurality of supporting components distributed in a ring shape are arranged in the sealing ring body 31, the supporting components comprise wave spring pieces 33 and arc spring pieces 34, the wave spring pieces 33 and the arc spring pieces 34 are respectively positioned at two sides of the annular groove 32, and the arc spring pieces 34 are close to the filter screen 2, and the arc-shaped elastic sheet 34 and the wave-shaped elastic sheet 33 both extend along the radial direction of the sealing ring body 31. When the third sealing ring 3 is squeezed, the wave spring piece 33 and the arc spring piece 34 deform to enable the third sealing ring 3 to be connected with corresponding parts more tightly, so that the sealing performance is better, and the arc spring piece 34 enables the third sealing ring 3 to be installed stably and not to fall off easily.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a detachable combination formula valve structure, including can with circulation pipeline fixed connection's connecting cylinder (1), place filter screen (2) in connecting cylinder (1), insert and establish in connecting cylinder (1) and support to press pressure cover (4) on filter screen (2), first valve body half shell (6) and second valve body half shell (8) of combining together and inject in case body (9) between first valve body half shell (6) and second valve body half shell (8), its characterized in that still includes adjusts locking mechanism (7), have link up pipeline (63) with the valve chamber intercommunication on the outer terminal surface of the valve body ring flange (61) of first valve body half shell (6), adjust locking mechanism (7) including the cover establish unsteady sliding sleeve (71) on link up pipeline (63), unsteady sliding sleeve (71) with be connected with a plurality of elasticity reset between valve body ring flange (61), set up and be in unsteady sliding sleeve actuating mechanism on valve body ring flange (61) is used for the drive unsteady sliding sleeve (71) are kept away from valve body ring flange (61) make the tip of unsteady sliding sleeve (71) inserts counter bore (43) of pressing cover (4), just link up pipeline (63) with press the coaxial intercommunication setting of cover (4), press cover (4) with it fills up (5) to be equipped with between unsteady sliding sleeve (71), unsteady sliding sleeve (71) with link up and be equipped with the sealing member between pipeline (63).

2. A removable block valve structure according to claim 1, wherein the floating sleeve actuator comprises a plurality of actuating heads (72) annularly arranged and radially and threadedly mounted on a collar (62), the collar (62) being located on the outer end surface of the valve body flange (61), and the engaging duct (63) being located within the collar (62), the outer tapered surface of the tapered head of the actuating head (72) being in abutting engagement with the guiding tapered surface (712) of the floating sleeve (71).

3. A removable modular valve structure according to claim 2, wherein the valve body flange (61) is threadedly connected with a plurality of locking bolts (65), the ends of the locking bolts (65) can be inserted into corresponding limiting holes on the pressing sleeve flange (42) of the pressing sleeve (4), and the locking bolts (65) and the driving head (72) are arranged in a staggered manner.

4. A removable modular valve structure according to claim 1, wherein said sealing means comprises a first sealing ring (66) and a second sealing ring (68) fitted around said engagement duct (63), a plurality of pushing springs (67) are disposed between said first sealing ring (66) and said second sealing ring (68), said first sealing ring (66) is confined on said engagement duct (63) by a locking sleeve (64) screwed onto the end of said engagement duct (63), said second sealing ring (68) is pressed against a retaining ring (712) located inside said floating sleeve (71), and said retaining ring (712) is connected with said engagement duct (63) in a sliding fit.

5. A knockdown valve structure as set forth in claim 1, wherein said resilient return member is a tension spring (73).

6. A detachable combined valve structure according to claim 1, wherein a third sealing ring (3) is disposed on each of two sides of the filter screen (2), the third sealing ring (3) includes a sealing ring body (31), an annular groove (32) having a concave arc-shaped cross section is disposed on each of an outer side surface and an inner side surface of the sealing ring body (31) at a corresponding position, and the annular groove (32) is engaged with a corresponding annular engaging portion of the third sealing ring (3) to fix the third sealing ring (3).

7. A detachable combined valve structure as claimed in claim 6, wherein the sealing ring body (31) is provided therein with a plurality of annularly distributed supporting members, the supporting members include a wave spring (33) and a curved spring (34), the wave spring (33) and the curved spring (34) are respectively located at two sides of the annular groove (32), the curved spring (34) is close to the filtering net (2), and the curved spring (34) and the wave spring (33) both extend along a radial direction of the sealing ring body (31).

8. A removable modular valve structure according to claim 1, characterized in that a ferrule (10) is connected between said connecting cylinder (1) and said pressing sleeve (4) and between said pressing sleeve (4) and said flange (61) of said valve body, respectively.