CN209026277U

CN209026277U - A kind of superhigh temperature pneumatically seals O-shaped cutting ball valve firmly

Info

Publication number: CN209026277U
Application number: CN201821404436.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shanghai Fasdon Valve Co Ltd
Current assignee: Shanghai Fasdon Valve Co Ltd
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2019-06-25
Anticipated expiration: 2028-08-29

Abstract

The utility model relates to cutting ball valve technical fields, and it discloses a kind of superhigh temperature and pneumatically seals O-shaped cutting ball valve firmly, including valve body, flange is fixedly installed in the middle part of the top end of the valve body, movable sleeve is connected to bolt respectively for the two sides on the flange top, and two bolt end heads run through and extend to the top of flange and equal movable sleeve is connected to bracket.The superhigh temperature pneumatically seals O-shaped cutting ball valve firmly, pass through being used cooperatively for compressed spring, nut, ring spring and bolt, when making annular rubber ring that shrinkage occur, two movable blocks and fixture block push bracket and flange under the action of compressed spring and ring spring restoring force respectively, keep flange and bracket close to each other, and then make the outside of annular rubber ring still can with the fitting of the inside of annular groove tightly, thus achieved the purpose that superhigh temperature pneumatically seal firmly O-shaped cutting ball valve will not because of environment temperature change and make sealing performance reduction.

Description

A kind of superhigh temperature pneumatically seals O-shaped cutting ball valve firmly

Technical field

The utility model relates to cutting ball valve technical field, specially a kind of superhigh temperature pneumatically seals O-shaped cutting ball valve firmly.

Background technique

Pneumatic cut-off ball valve is used to being truncated or connecting medium in pipeline, selects different materials, can be respectively suitable for water, A variety of media such as steam, oil product, nitric acid, acetic acid, Oxidant and urea, pneumatic cut-off ball valve have full-bore and undergauge two Kind structure type, the ball valve for conveying on viscosity and easy slagging medium pipeline should use full-bore, convenient regularly paraffin cutting Purging device passes through.

There is the phenomenon that fluid seepage in pneumatic cut-off ball valve joint in order to prevent, can all use sealing ring under normal conditions Processing is sealed to pneumatic cut-off ball valve joint, the problem of due to sealing ring itself material, environment temperature is made to change When, sealing ring expands with heat and contract with cold, and then deformation occurs, and sealing performance reduces, the fluid seepage be easy to causeing in pneumatic cut-off ball valve, And due on pneumatic cut-off ball valve the problem of executive device own wt, after keeping executive device rack-mount, on bracket Threaded hole be not easy with the threaded hole alignment on flange, be not easy to install, release a kind of superhigh temperature thus and pneumatically seal O-shaped cut firmly Intercept valve.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of superhigh temperature and pneumatically seals O-shaped cutting ball valve firmly, has It is standby will not because of environment temperature change and the advantages that so that sealing performance reduced, be easily installed, solve sealing ring itself material The problem of, when environment temperature being made to change, sealing ring expands with heat and contract with cold, and then deformation occurs, and sealing performance reduces, and be easy to cause Fluid seepage in pneumatic cut-off ball valve, and due to the problem of executive device own wt, making to execute on pneumatic cut-off ball valve After device is rack-mount, the threaded hole on bracket is not easy the problem of being aligned with the threaded hole on flange, being not easy to installation.

(2) technical solution

For realize it is above-mentioned will not because of environment temperature change and reduce sealing performance, the purpose that is easily installed, this reality Provided the following technical solutions with novel: a kind of superhigh temperature pneumatically seals O-shaped cutting ball valve, including valve body, the top end of the valve body firmly Middle part be fixedly installed with flange, movable sleeve is connected to bolt respectively for the two sides on the flange top, and two bolt end heads are equal Run through and extend to the top of flange and equal movable sleeve is connected to bracket, the top of the bracket is fixedly installed with executive device, institute The bottom end movable sleeve for stating bolt is connected to fixture block below flange, and the top of the fixture block and the bottom end of flange are flexibly connected, The external activity of the bolt is socketed with the ring spring below fixture block, and the external activity of the bolt, which is socketed with, is located at branch Movable block inside frame, the external activity of the bolt are socketed with the compressed spring positioned at internal stent, the outside of the bolt Screw thread is socketed with the nut above movable block, and the middle part movable sleeve of the executive device is connected to valve rod, the bottom of the valve rod End sequentially passes through bracket and flange from top to down and extends to the inside of valve body and be fixedly connected with the spool of valve inner, described Annular groove is offered in the middle part of flange top, the bottom end of the annular groove offers annular groove, the inside of the annular groove Pivot bush unit has limit plate, and the top of the limit plate is run through and extended to the outside of annular groove and fix with the bottom end of bracket and connects It connects, the annular rubber ring being fixedly installed in the middle part of the bracket bottom end inside annular groove.

Preferably, one end of the ring spring is fixedly connected with the bottom end of fixture block, the other end of the ring spring with The bottom end of bolt is fixedly connected.

Preferably, the quantity of the movable block is two, and the top of movable block and the bottom end activity of nut connect It connects, the bottom end of another movable block is flexibly connected with the bottom end of internal stent.

Preferably, one end of the compressed spring is fixedly connected with the bottom end of a movable block, the compressed spring it is another One end is fixedly connected with the top of another movable block.

Preferably, the distance between the bottom end of the limit plate and annular groove inner cavity bottom end value are the bottoms of annular rubber ring Twice of end and the distance between annular groove inner cavity bottom end value, the outside of the limit plate respectively with the internal slide of annular groove Connection.

Preferably, the quantity of the annular rubber ring is two, the inner wall of annular rubber ring and limit plate Outer wall is slidably connected, and the outer wall of another annular rubber ring and the inner wall of limit plate are slidably connected.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of superhigh temperature and pneumatically seals O-shaped cutting ball valve firmly, have with It is lower the utility model has the advantages that

1, the superhigh temperature pneumatically seals O-shaped cutting ball valve firmly, passes through matching for compressed spring, nut, ring spring and bolt It closes and uses, when making annular rubber ring that shrinkage occur, two movable blocks and fixture block are respectively in compressed spring and ring spring restoring force Under the action of push bracket and flange, keep flange and bracket close to each other, and then make the outside of annular rubber ring still can be with The fitting of the inside of annular groove tightly, thus reached superhigh temperature pneumatically seal O-shaped cutting ball valve firmly will not be because of environment temperature Change and make sealing performance reduce purpose.

2, the superhigh temperature pneumatically seals O-shaped cutting ball valve firmly, by being used cooperatively for limit plate and annular groove, makes bracket It only can be rotated without that can relatively move between flange, and then facilitate the threaded hole pair on threaded hole and bracket on flange Together, to achieve the purpose that superhigh temperature pneumatically seals O-shaped cutting ball valve firmly and is easily installed.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is enlarged diagram at the A of the utility model structure.

In figure: 1, valve body；2, flange；3, bolt；4, bracket；5, executive device；6, fixture block；7, ring spring；8, movable Block；9, compressed spring；10, nut；11, valve rod；12, annular groove；13, annular groove；14, limit plate；15, annular rubber ring.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of superhigh temperature pneumatically seals O-shaped cutting ball valve, including valve body 1, the middle part on 1 top of valve body firmly referring to FIG. 1-2, It is fixedly installed with flange 2, movable sleeve is connected to bolt 3 respectively for the two sides on 2 top of flange, and two 3 tops of bolt are run through and extended To flange 2 top and equal movable sleeve be connected to bracket 4, the top of bracket 4 is fixedly installed with executive device 5, and the bottom end of bolt 3 is living Dynamic to be socketed with the fixture block 6 positioned at 2 lower section of flange, the top of fixture block 6 and the bottom end of flange 2 are flexibly connected, the external activity of bolt 3 It is socketed with the ring spring 7 for being located at 6 lower section of fixture block, one end of ring spring 7 is fixedly connected with the bottom end of fixture block 6, ring spring 7 The other end be fixedly connected with the bottom end of bolt 3, by being used cooperatively for ring spring 7 and bolt 3, when annulus temperature becomes When changing and making annular rubber ring 15 that shrinkage occur, fixture block 6 can push flange 2 to bracket 4 under the action of 7 restoring force of ring spring It is close, so that the outside of annular rubber ring 15 still can be kept good leakproofness with the fitting of the inside of annular groove 12 tightly, To reached superhigh temperature pneumatically seal firmly O-shaped cutting ball valve will not because of environment temperature change and make sealing performance reduce Purpose, the external activity of bolt 3 are socketed with the movable block 8 inside bracket 4, and the quantity of movable block 8 is two, an activity The top of block 8 is flexibly connected with the bottom end of nut 10, and the bottom end of another movable block 8 is flexibly connected with the bottom end inside bracket 4, When ensure that nut 10 rotates and pushes the movable block 8 above compressed spring 9, make the activity for being located at 9 lower section of compressed spring It is close to flange 2 that block 8 can push bracket 4, so that the reasonability that superhigh temperature pneumatically seals O-shaped cutting ball valve firmly is improved, spiral shell The external activity of bolt 3 is socketed with the compressed spring 9 inside bracket 4, the bottom of one end of compressed spring 9 and a movable block 8 End is fixedly connected, and the other end of compressed spring 9 is fixedly connected with the top of another movable block 8, passes through compressed spring 9 and nut 10 are used cooperatively, when making annular rubber ring 15 that shrinkage occur, two movable blocks 89 restoring force of compressed spring under the action of to Outer movement, and it is close to flange 2 to push bracket 4, so make the outside of annular rubber ring 15 still can in annular groove 12 The fitting of portion tightly, thus reached superhigh temperature pneumatically seal firmly O-shaped cutting ball valve will not because of environment temperature change and make The purpose that sealing performance reduces, the external screw-thread of bolt 3 are socketed with the nut 10 above movable block 8, in executive device 5 Portion's movable sleeve is connected to valve rod 11, and the bottom end of valve rod 11 sequentially passes through bracket 4 and flange 2 from top to down and extends to the interior of valve body 1 It portion and is fixedly connected with the spool inside valve body 1, annular groove 12 is offered in the middle part of 2 top of flange, the bottom end of annular groove 12 is opened Equipped with annular groove 13, the internal activity of annular groove 13 is socketed with limit plate 14, the bottom end of limit plate 14 and annular groove 13 The distance between inner cavity bottom end value is twice of the distance between bottom end and the 12 inner cavity bottom end of annular groove of annular rubber ring 15 value, The outside of limit plate 14 is connect with the internal slide of annular groove 13 respectively, is made by the cooperation of limit plate 14 and annular groove 13 With making between bracket 4 and flange 2 only to can be rotated without that can relatively move, and then facilitate the threaded hole on flange 2 and bracket 4 On threaded hole alignment, to achieve the purpose that superhigh temperature pneumatically seals O-shaped cutting ball valve firmly and is easily installed, limit plate 14 Top is run through and extends to the outside of annular groove 12 and be fixedly connected with the bottom end of bracket 4, and the middle part of 4 bottom end of bracket is fixedly mounted There is an annular rubber ring 15 being located inside annular groove 12, the quantity of annular rubber ring 15 is two, annular rubber ring 15 The outer wall of inner wall and limit plate 14 is slidably connected, and the outer wall of another annular rubber ring 15 and the inner wall of limit plate 14 slide and connect It connects, by two annular rubber rings 15, when making to occur between valve rod 11 and flange 2 infiltration situation, water cannot pass through flange 2 and branch Gap between frame 4 flows to the outside of valve body 1, to improve the leakproofness that superhigh temperature pneumatically seals O-shaped cutting ball valve firmly.

When work, the valve rod 11 in executive device 5 is passed through into bracket 4 first, and executive device 5 is mounted on bracket 4, Valve rod 11 is inserted into the inside of valve body 1 and annular rubber ring 15 and limit plate 14 are respectively put into annular groove 12 and annular groove 13 Inside, then rotating bracket 4, are aligned the threaded hole on bracket 4 with the threaded hole on flange 2, and bolt 3 is sequentially passed through branch The threaded hole on threaded hole and flange 2 on frame 4, then movable block 8 and 9 sets of compressed spring are on bolt 3, finally by 10 sets of nut On bolt 3, nut 10 is rotated clockwise, makes the decline of nut 10 and Compressive activities block 8, when annular rubber ring 15 and annular groove 12 When fitting tightly, stop operating bolt 3.

In conclusion the superhigh temperature pneumatically seals O-shaped cutting ball valve firmly, pass through compressed spring 9, nut 10, ring spring 7 With being used cooperatively for bolt 3, when making annular rubber ring 15 that shrinkage occur, two movable blocks 8 and fixture block 6 are respectively in compressed spring 9 With promotion bracket 4 and flange 2 under the action of 7 restoring force of ring spring, keep flange 2 and bracket 4 close to each other, and then make annular rubber The outside of cushion rubber 15 still can with the fitting of the inside of annular groove 12 tightly, thus reached superhigh temperature pneumatically seal firmly it is O-shaped Cutting ball valve will not because of environment temperature change and make sealing performance reduce purpose, pass through limit plate 14 and annular groove 13 Be used cooperatively, make between bracket 4 and flange 2 only to can be rotated without that can relatively move, and then facilitate the threaded hole on flange 2 It is aligned with the threaded hole on bracket 4, to achieve the purpose that superhigh temperature pneumatically seals O-shaped cutting ball valve firmly and is easily installed；Solution The problem of sealing ring itself material of having determined, when environment temperature being made to change, sealing ring expands with heat and contract with cold, and then deformation occurs, close Sealing property reduce, the fluid seepage be easy to causeing in pneumatic cut-off ball valve, and due on pneumatic cut-off ball valve executive device 5 from The problem of body weight, after being mounted on executive device 5 on bracket 4, the threaded hole on bracket 4 is not easy and the threaded hole pair on flange Together, the problem of being not easy to installation.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of superhigh temperature pneumatically seals O-shaped cutting ball valve, including valve body (1) firmly, it is characterised in that: valve body (1) top Middle part be fixedly installed with flange (2), movable sleeve is connected to bolt (3) respectively for the two sides on flange (2) top, two spiral shells Bolt (3) top is run through and extends to the top of flange (2) and equal movable sleeve is connected to bracket (4), and the top of the bracket (4) is solid Dingan County is equipped with executive device (5), and the bottom end movable sleeve of the bolt (3) is connected to the fixture block (6) below flange (2), described The top of fixture block (6) and the bottom end of flange (2) are flexibly connected, and the external activity of the bolt (3) is socketed under fixture block (6) The ring spring (7) of side, the external activity of the bolt (3) are socketed with the movable block (8) internal positioned at bracket (4), the spiral shell The external activity of bolt (3) is socketed with the compressed spring (9) internal positioned at bracket (4), and the external screw-thread of the bolt (3) is socketed with The middle part movable sleeve of nut (10) above movable block (8), the executive device (5) is connected to valve rod (11), the valve rod (11) bottom end sequentially pass through from top to down bracket (4) and flange (2) and extend to valve body (1) inside and with valve body (1) in The spool in portion is fixedly connected, and is offered annular groove (12) in the middle part of flange (2) top, the bottom end of the annular groove (12) is opened Equipped with annular groove (13), the internal activity of the annular groove (13) is socketed with limit plate (14), the limit plate (14) Top is run through and extends to the outside of annular groove (12) and be fixedly connected with the bottom end of bracket (4), in bracket (4) bottom end Portion is fixedly installed with the annular rubber ring (15) internal positioned at annular groove (12).

2. a kind of superhigh temperature according to claim 1 pneumatically seals O-shaped cutting ball valve firmly, it is characterised in that: the annular One end of spring (7) is fixedly connected with the bottom end of fixture block (6), and the other end of the ring spring (7) and the bottom end of bolt (3) are solid Fixed connection.

3. a kind of superhigh temperature according to claim 1 pneumatically seals O-shaped cutting ball valve firmly, it is characterised in that: the activity The quantity of block (8) is two, and the top of a movable block (8) is flexibly connected with the bottom end of nut (10), described in another The bottom end of movable block (8) bottom end internal with bracket (4) is flexibly connected.

4. a kind of superhigh temperature according to claim 1 pneumatically seals O-shaped cutting ball valve firmly, it is characterised in that: the compression One end of spring (9) is fixedly connected with the bottom end of a movable block (8), the other end of the compressed spring (9) and another work The top of motion block (8) is fixedly connected.

5. a kind of superhigh temperature according to claim 1 pneumatically seals O-shaped cutting ball valve firmly, it is characterised in that: the limit The distance between the bottom end and annular groove (13) inner cavity bottom end of plate (14) value is bottom end and the annular groove of annular rubber ring (15) (12) twice of the distance between inner cavity bottom end value, the outside of the limit plate (14) is sliding with the inside of annular groove (13) respectively Dynamic connection.

6. a kind of superhigh temperature according to claim 1 pneumatically seals O-shaped cutting ball valve firmly, it is characterised in that: the annular The quantity of rubber ring (15) is two, and the inner wall of an annular rubber ring (15) and the outer wall of limit plate (14) slide and connect It connects, the inner wall of the outer wall and limit plate (14) of another annular rubber ring (15) is slidably connected.