CN202280869U

CN202280869U - Quick-release valve assembly

Info

Publication number: CN202280869U
Application number: CN2011204223655U
Authority: CN
Inventors: 徐高全
Original assignee: CHONGQING YONGTAI WATER TREATMENT SYSTEM ENGINEERING Co Ltd
Current assignee: CHONGQING YONGTAI WATER TREATMENT SYSTEM ENGINEERING Co Ltd
Priority date: 2011-10-31
Filing date: 2011-10-31
Publication date: 2012-06-20
Anticipated expiration: 2021-10-31

Abstract

The utility model discloses a quick-release valve assembly, which includes a pressure plate, a transition connector, pull rods with external screw threads, and pressure plate nuts sleeved on the pull rods. The pull rods pass through the pressure plate and are in threaded connection with the transition connector; fluid passages are arranged on the transition connector and the pressure plate respectively; a valve body communicating the fluid passages is arranged between the transition connector and the pressure plate; a valve ball and a valve seat are arranged in the valve body; the valve seat is provided with one end propped against the transition connector; two ends of the valve body behind the pressure plate are tightly pressed by the pressure plate nuts, and then respectively seal and prop against the pressure plate and the transition connector; a seal surface of the pressure plate with the valve body is protruded out from an end surface of the pressure plate; and a seal surface of the transition connector with the valve body is protruded out from an end surface of the transition connector. When the valve body is dismounted, the pressure plate nuts are loosened and raised to upper ends to jack up the pressure plate; the seal surfaces are protruded, so that small deformation is enough for taking out the valve body, not all of inlet and outlet pipelines are required to be dismounted, the time and the workload of replacement are effectively reduced, the manpower is saved, and surely, the mounting is also convenient and rapid.

Description

The fast disassembly type valve assembly

Technical field

The utility model relates to the FLUID TRANSPORTATION technical field, particularly a kind of fast disassembly type valve assembly.

Background technique

In the FLUID TRANSPORTATION of technological process; Valve assembly is used to carry out various connections, be connected through valve assembly as needing between metering pump and the pipeline, and valve assembly need carry out long-term continual operation usually; Thereby cause problems such as valve ball in the valve assembly, the prooving of valve seat and seal fails easily; Cause leakage, therefore, need often the component that damage and lost efficacy to be changed.

Existing valve assembly structure is as shown in Figure 2; Comprise valve body 5, be arranged on valve ball 6 and valve seat 7 in the valve body 5, valve body 5 is pressed between pressing plate 1 and the transition connecting body 2 through pull bar 3 and panel nut 4, need pull down valve body in the time of changing valve ball, valve seat and seal ring; Owing to be connected through seam between valve body and valve seat and pressing plate and the transition connecting body; And the import and export pipeline at two ends all can't significantly shorten to reserve the space that valve body takes out, and therefore, could pull down the valve body completion smoothly after often needing to import and export pipeline and disassembling fully and more change jobs; There is the problem that the replacing time is long, workload is big, causes the great amount of manpower waste.

To above-mentioned deficiency, need existing valve assembly is improved, make it under the situation of not pulling down the import and export pipeline, can take out valve body, so that the replacing of valve seat, valve ball and seal ring.

The model utility content

In view of this, the utility model provides a kind of fast disassembly type valve assembly, causes valve seat, valve ball and the seal ring replacing time is long and workload is big technical problem to solve existing valve assembly valve body inconvenience dismounting.

The fast disassembly type valve assembly of the utility model; Comprise pressing plate, transition connecting body, with externally threaded pull bar be placed in the panel nut on the pull bar; Said pull bar passes pressing plate and is threaded with the transition connecting body; Be respectively arranged with the fluid passage on said transition connecting body and the pressing plate; Between transition connecting body and the pressing plate valve body that is communicated with said fluid passage is set, is provided with the valve seat that a valve ball and an end withstand the transition connecting body in the valve body, panel nut clamping platen rear valve body two ends seal respectively withstands pressing plate and transition connecting body; On the said pressing plate and the sealing surface between valve body protrusion pressing plate end face, on the said transition connecting body and the protrusion of the sealing surface between valve body transition connecting body end face.

Further, also comprise the nut that backs down that is placed on the pull bar, said back down nut between pressing plate and transition connecting body and an end withstand the end face of pressing plate;

Further, also comprise the locking nut that is placed on the pull bar, said locking nut is backing down between nut and the transition connecting body and an end withstands the end face of transition connecting body;

Further, between said valve body and the top board, be respectively arranged with seal ring between valve seat and the transition connecting body;

Further, said seal ring is viton seal ring or bag fluorine seal ring.

The beneficial effect of the utility model: the fast disassembly type valve assembly of the utility model, comprise pressing plate, transition connecting body, with externally threaded pull bar be placed in the panel nut on the pull bar, said pull bar passes pressing plate and is threaded with the transition connecting body; Be respectively arranged with the fluid passage on said transition connecting body and the pressing plate, between transition connecting body and the pressing plate valve body that is communicated with said fluid passage be set, be provided with the valve seat that a valve ball and an end withstand the transition connecting body in the valve body; Panel nut clamping platen rear valve body two ends seal respectively withstands pressing plate and transition connecting body, on the said pressing plate and the sealing surface between valve body protrusion pressing plate end face, on the said transition connecting body and the protrusion of the sealing surface between valve body transition connecting body end face; During the dismounting valve body; Earlier panel nut is unclamped, the jack-up pressing plate that makes progress then is because the design of the protrusion of sealing surface; As long as being arranged, small size distortion can take out valve body smoothly; Do not need to import and export pipeline and all pull down, effectively reduced replacing time and workload, practice thrift manpower; Convenient too when certainly, packing into.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of metering pump valve assembly in the existing technology.

Embodiment

Below will combine accompanying drawing that the utility model is elaborated; As shown in the figure: the fast disassembly type valve assembly of present embodiment, comprise pressing plate 1, transition connecting body 2, with externally threaded pull bar 3 be placed in the panel nut 4 on the pull bar 3, said pull bar 3 passes pressing plate 1 and is threaded with transition connecting body 2; Pull bar is two and is symmetrically distributed with respect to pressing plate and transition connecting body center; Be respectively arranged with the fluid passage on said transition connecting body 2 and the pressing plate 1, between transition connecting body 2 and the pressing plate 1 valve body 5 that is communicated with said fluid passage be set, be provided with the valve seat 7 that a valve ball 6 and an end withstand transition connecting body 2 in the valve body 5; Panel nut 4 clamping platens 1 rear valve body 5 two ends seal respectively withstands pressing plate 1 and transition connecting body 2; On the said pressing plate 1 and the sealing surface 1a between the valve body 5 protrusion pressing plate 1 end face, on the said transition connecting body 2 and the protrusion of the sealing surface 2a between the valve body 5 transition connecting body 2 end faces, with respect to fixing structure of the prior art; As long as pressing plate and transition connecting body are applied the outside power of backing down; Crush board and transition connecting body produce the dismounting that less displacement can be accomplished valve body, avoid the import and export pipeline is all pulled down, and be convenient and swift.

Further improvement as technique scheme; Said fast disassembly type valve assembly also comprises being placed in and backs down nut 8 on the pull bar 3; Said back down nut 8 between pressing plate 1 and transition connecting body 2 and an end withstand the end face of pressing plate 1; Back down nut 8 through turn and can apply outside tension force, make it produce a less displacement, be convenient to the dismounting and the installation of valve body pressing plate.

Further improvement as technique scheme; Said fast disassembly type valve assembly also comprises the locking nut 9 that is placed on the pull bar 3; Said locking nut 9 is backing down between nut 8 and the transition connecting body 2 and an end withstands the end face of transition connecting body 2, preventing pull bar rotation together thereupon when nut is backed down in turn, during specific operation; Can use spanner to keep not changeing, pull through another spanner and back down nut by locking nut.

As the further improvement of technique scheme, between said valve body 5 and the pressing plate 1, be respectively arranged with seal ring 10 between valve seat 7 and the transition connecting body 2, seal ring generally adopts the O RunddichtringO, and seal ring is realized end face seal, anti-heads.

As the further improvement of technique scheme, said seal ring 10 is viton seal ring or bag fluorine seal ring, and viton seal ring or bag fluorine seal ring all have well corrosion-resistant and wear-resisting property, long service life.

Explanation is at last; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. fast disassembly type valve assembly; Comprise pressing plate (1), transition connecting body (2), with externally threaded pull bar (3) be placed in the panel nut (4) on the pull bar (3); Said pull bar (3) passes pressing plate (1) and is threaded with transition connecting body (2); Be respectively arranged with the fluid passage on said transition connecting body (2) and the pressing plate (1); Between transition connecting body (2) and the pressing plate (1) valve body (5) that is communicated with said fluid passage is set; Be provided with the valve seat (7) that a valve ball (6) and an end withstand transition connecting body (2) in the valve body (5); Panel nut (4) clamping platen (1) rear valve body (5) two ends seal respectively withstands pressing plate (1) and transition connecting body (2), it is characterized in that: said pressing plate (1) go up with valve body (5) between sealing surface (1a) protrusion pressing plate (1) end face, said transition connecting body (2) go up and valve body (5) between sealing surface (2a) protrude transition connecting body (2) end face.

2. fast disassembly type valve assembly according to claim 1; It is characterized in that: comprise also being placed in and back down nut (8) on the pull bar (3) that the said nut (8) that backs down is positioned between pressing plate (1) and the transition connecting body (2) and an end withstands the end face of pressing plate (1).

3. fast disassembly type valve assembly according to claim 2; It is characterized in that: also comprise the locking nut (9) that is placed on the pull bar (3), said locking nut (9) is positioned at and backs down between nut (8) and the transition connecting body (2) and an end withstands the end face of transition connecting body (2).

4. according to claim 1,2 or 3 described fast disassembly type valve assemblys, it is characterized in that: between said valve body (5) and the pressing plate (1), be respectively arranged with seal ring (10) between valve seat (7) and the transition connecting body (2).

5. fast disassembly type valve assembly according to claim 4 is characterized in that: said seal ring (10) is viton seal ring or bag fluorine seal ring.