CN215445083U

CN215445083U - Cooling water filter butterfly valve convenient to maintenance

Info

Publication number: CN215445083U
Application number: CN202120772348.8U
Authority: CN
Inventors: 庞洪轩; 陈建超; 徐东; 赵忠诚; 赵波涛
Original assignee: Hebei Puyang Iron and Steel Co Ltd
Current assignee: Hebei Puyang Iron and Steel Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-01-07
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a cooling water filter butterfly valve convenient to maintain, which comprises a handle, wherein one end of the handle is fixedly connected with one end of a valve rod, a fluted disc is fixedly connected on the handle coaxially with the valve rod, a valve body is arranged in a detachable insertion fit with the fluted disc, the valve rod coaxially and rotatably penetrates through the valve body, a hollow structure is arranged on the end face of the side of the valve body, a valve clack is arranged on the circumferential surface of the valve rod corresponding to the hollow structure of the valve body, a bearing and a sealing ring are sequentially and coaxially sleeved on the outer side of the circumference of the valve rod at the lower end of the valve clack from top to bottom, a transverse opening is arranged on the valve body between the bearing and the sealing ring, a flexible bushing is arranged on the outer side of the valve rod corresponding to the position of the opening, and a pressing block is arranged in the opening in a sliding manner, so that the pressing block can press the flexible bushing to generate deformation. According to the utility model, the pressing block is arranged to press the flexible bushing to seal the butterfly valve in a short time, the butterfly valve can be replaced and maintained without stopping the butterfly valve, and the maintenance efficiency is greatly improved.

Description

Cooling water filter butterfly valve convenient to maintenance

Technical Field

The utility model relates to the technical field of pipeline valves, in particular to a butterfly valve of a cooling water filter, which is convenient to maintain.

Background

The butterfly valve is also called as flap valve, is a regulating valve with simple structure, can be used for controlling the flow of various fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly plays the role of cutting off and throttling on a pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved. The existing butterfly valve is often used for opening and closing and flow control of a cooling water filter, however, the phenomenon of water seepage often appears in the bottom of the butterfly valve in the production process, the reason of general water seepage is because the sealing washer rolls untight, the sealing washer is poor with body build-up welding quality, the sealing washer is connected not hard up or the sealing washer is corroded etc., because of water pressure is too high in normal production, repair can not be carried out, repair is carried out after generally adopting the repairing agent to polish, electric welding defects are stopped, it is accomplished after dismantling the sealing washer after equipment is usually required to shut down when polishing and repairing, the work progress and efficiency are seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cooling water filter butterfly valve convenient to maintain, and solves the problems that in the prior art, the working progress is influenced by polishing and repairing a butterfly valve sealing ring by using a repairing agent, and the maintenance efficiency is low.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a cooling water filter butterfly valve convenient to maintain, which comprises a handle, wherein one end of the handle is fixedly connected with one end of a valve rod, a fluted disc is fixedly connected to the handle coaxially with the valve rod, a valve body is arranged on the handle in a detachable splicing fit manner, a through hole is vertically formed through the valve body, the valve rod coaxially and rotatably penetrates through the through hole, a hollow structure is formed through the end face of the side of the valve body, and a valve clack is arranged on the circumferential surface of the valve rod corresponding to the hollow structure of the valve body, so that the valve clack can rotate in the hollow structure of the valve body under the driving of the rotation of the valve rod; the valve comprises a valve body, a valve clack, a valve rod, a flexible bushing and a pressing block, wherein the valve rod is arranged at the lower end of the valve clack, the valve rod is arranged on the outer side of the circumference of the valve clack, the valve rod is sequentially coaxially sleeved with the bearing and the sealing ring from top to bottom, a transverse hole is formed in the valve body between the bearing and the sealing ring, the flexible bushing is arranged on the inner wall of the through hole corresponding to the position of the hole, the pressing block is arranged in the hole in a sliding mode, and the pressing block can press the flexible bushing to deform.

Furthermore, the valve body is fixedly connected with a connecting part, and a pressing plate is movably arranged on the surface of the connecting part corresponding to the position of the opening, so that the pressing plate can be close to the opening and far away from the opening.

Furthermore, the pressing plate is movably connected with the connecting part through a screw, the surface of the pressing plate, which is close to the connecting part, is fixedly connected with the thread tail end of the screw, and the thread outer surface of the screw penetrates through the connecting part to be in screw fit connection.

Furthermore, a locking hole is formed in the pressing plate and perpendicular to the direction of the pressing block, a positioning hole is formed in the position, corresponding to the locking hole, of the pressing block, so that when the flexible bushing is pressed by the pressing block, the positioning hole is connected with the locking hole in a locking mode through a locking piece.

Furthermore, a pull ring is arranged on the side end face of the pressing block, and the pressing block moves along the opening by pulling the pull ring.

Furthermore, the shape of the end face of the pressing block corresponding to the flexible lining is matched with the shape of the outer wall of the flexible lining, so that the pressing block is completely pressed on the outer wall of the flexible lining.

Further, the opening and the pressing block are symmetrically arranged in two along the valve rod.

Further, the flexible sleeve is made of waterproof cloth, plastic or polymer material.

Furthermore, a bulge is arranged on the inner wall of the flexible bushing and corresponds to the position, pressed by the pressing block, of the flexible bushing, so that after the pressing block presses the flexible bushing, the bulge abuts against the circumferential outer surface of the valve rod.

Compared with the prior art, the utility model has the beneficial technical effects that:

according to the cooling water filter butterfly valve convenient to maintain, the flexible bushing is deformed by pressing the flexible bushing through the pressing block, the inner protrusion of the flexible bushing is in contact sealing with the valve rod, the pressing plate is used for pressing the side wall of the pressing block to fix the pressing block to longitudinally compress the flexible bushing, and the pressing block and the pressing plate are locked and fixed through the positioning and locking of the positioning hole and the locking hole, so that the replacement of the sealing ring and the repair of a repairing agent can be completed without stopping the work of the butterfly valve when the sealing ring is maintained, and the efficiency of maintenance work is improved.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic perspective view of a butterfly valve of a cooling water filter according to the present invention for easy maintenance;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a butterfly valve of a cooling water filter according to the present invention for easy maintenance;

FIG. 4 is a schematic view of a portion of the enlarged structure at B in FIG. 3;

FIG. 5 is a schematic structural diagram of a pressure block, a flexible liner and a pressure plate of the butterfly valve of the cooling water filter for easy maintenance according to the present invention.

Description of reference numerals: 1. a handle; 2. a fluted disc; 3. a valve stem; 4. a valve body; 401. opening a hole; 5. a valve seat; 6. a gasket; 7. a valve flap; 8. a flexible bushing; 9. a bearing; 10. a seal ring; 11. briquetting; 111. a pull ring; 112. positioning holes; 12. a connecting portion; 13. pressing a plate; 131. a locking hole; 14. and (4) screws.

Detailed Description

As shown in fig. 1 to 5, a cooling water filter butterfly valve convenient to maintenance, including handle 1, handle 1 sets up to rectangular platelike structure, the perpendicular fixedly connected with valve rod 3 in upper and lower surface that runs through 1 one end of handle, 1 lower terminal surface of handle and the coaxial fixedly connected with fluted disc 2 of

valve rod

3, 2 lower surfaces of fluted disc are provided with the recess, here the recess can set up to the heavy groove also can set up to logical groove, be provided with the lug with the recess grafting complex, the lug is fixed to be set up in the upper surface of valve body 4, so that fluted disc 2 can dismantle the grafting cooperation with valve body 4.

Specifically, run through the vertical through-hole that is provided with of valve body 4, the coaxial rotatable through-hole setting that runs through of valve rod 3 runs through 4 side end faces of valve body and is provided with hollow structure, is provided with valve clack 7 on the 3 circumference surfaces of valve rod that correspond 4 hollow structure of valve body to make valve clack 7 at the hollow structure internal rotation of valve body 4 under the rotatory drive of valve rod 3.

Specifically, a valve seat 5 is fixedly arranged on the hollow inner surface of the hollow structure, the valve seat 5 is arranged in a hollow annular structure, a gasket 6 is arranged on the inner surface of the annular circumference, so that the valve clack 7 and the gasket 6 are in transition fit, the valve clack 7 rotates to a position parallel to the hollow structure to just close the hollow structure, and the valve clack 7 rotates to a position not parallel to the hollow structure to allow fluid to pass through the valve body 4.

The cooling water filter butterfly valve convenient to maintenance of this embodiment passes through packing ring 6 and sets up and makes valve clack 7 and disk seat 5 obtain better cooperation, avoids revealing, reduces valve clack 7's wearing and tearing loss simultaneously, improves whole life.

Specifically, a bearing 9 is coaxially sleeved on the outer circumferential surface of a valve rod 3 in through holes on the upper side and the lower side of a hollow structure, a sealing ring 10 is coaxially sleeved on the outer circumferential surface of the valve rod 3 at the lower end of the lower bearing 9, a transverse opening 401 is arranged on a valve body 4 between the lower bearing 9 and the sealing ring 10, a flexible bushing 8 is arranged on the inner wall of the through hole corresponding to the position of the opening 401, the opening 401 penetrates through the inner wall of the through hole and is connected with the outer surface of the flexible bushing 8, a pressing block 11 is slidably arranged in the opening 401, specifically, a sliding block can be arranged on the upper surface and the lower surface of the pressing block 11, a sliding rail is arranged on the upper surface and the lower surface of the opening 401, so that the sliding block can move on the sliding rail, the sliding block can move in the opening 401, the pressing block 11 can also be in clearance fit with the opening 401, the pressing block 11 can freely move in the opening 401, a pull ring 111 is arranged on the side end surface of the pressing block 11, and the pull ring 111 is pulled so that the pressing block 11 moves along the opening 401, so that the mass 11 can be moved to the outer surface of the flexible bushing 8 to act as a press against the flexible bushing 8.

Specifically, the terminal surface shape that briquetting 11 corresponds flexible bush 8 suits with the shape of flexible bush 8 outer wall, so that briquetting 11 can the 8 outer walls of complete pressfitting flexible bush, it is provided with the arch simultaneously to correspond on the 8 inner walls of flexible bush that briquetting 11 pressed the position, protruding material chooses for use the polymer material that has the sealing effect here, so that briquetting 11 presses flexible bush 8 back, flexible bush 8 warp, make the arch support and press 3 circumference surfaces of valve rod, and then play the sealed effect of short time to the inside fluid of valve body 4.

Specifically, the opening 401 and the pressing block 11 may be symmetrically disposed in two along the valve rod 3, so that the pressing of the pressing block 11 on the flexible bushing 8 is more suitable.

Specifically, the flexible bushing 8 is made of a deformable material such as waterproof cloth, plastic or polymer, and preferably, the flexible bushing 8 can be made of an aluminum-plastic composite pipe, so that the flexible bushing has good corrosion resistance and certain deformability.

The cooling water filter butterfly valve convenient to maintenance of this embodiment realizes the short time of the inside fluid of valve body 4 through being provided with briquetting 11 and the flexible bush 8 structure of variability, when changing or maintaining sealing washer 10, need not stop the work of butterfly valve and can accomplish.

Specifically, fixedly connected with connecting portion 12 on valve body 4, here connecting portion 12 sets up to the type of falling L, the perpendicular side surface setting of valve body 4 of the minor face of the type of falling L, the long limit position of the type of falling L corresponds trompil 401 position department, and be provided with clamp plate 13 near trompil 401 terminal surface removal in the long limit of the type of falling L, specific clamp plate 13 can set up to the platelike structure that is on a parallel with the valve body 4 side surface, and clamp plate 13 is close to the screw thread end of fixedly connected with screw 14 on the surface of connecting portion 12, the screw thread surface of screw 14 runs through connecting portion 12 screw fit connection, so that rotating screw 14 can make clamp plate 13 be close to trompil 401 and keep away from trompil 401 position removal.

The cooling water filter butterfly valve convenient to maintain of this embodiment is close to trompil 401 through clamp plate 13 and presses briquetting 11 and makes briquetting 11 laminate more to flexible bush 8's pressfitting effect, and guarantees the pressfitting leakproofness of longitudinal direction.

Specifically, the pressing plate 13 is provided with a locking hole 131 perpendicular to the direction of the pressing block 11, and the pressing block 11 is provided with a positioning hole 112 at a position corresponding to the locking hole 131, so that the positioning hole 112 and the locking hole 131 are connected in a locking manner through a locking member when the pressing block 11 presses the flexible bushing 8, and the locking member can be a screw or a bolt which can be connected to a locking structure.

The cooling water filter butterfly valve convenient to maintain of this embodiment has realized the locking of briquetting 11 horizontal position through the location locking of locating hole 112 and locking hole 131, and vertical pressing through clamp plate 13 has guaranteed that briquetting 11's longitudinal direction is fixed simultaneously for flexible bushing 8's the leakproofness of pressing is stronger, improves the reliability of pressing.

When the sealing ring 10 leaks and needs to be maintained, the butterfly valve for the cooling water filter convenient to maintain of the embodiment can pull the pull ring 111 to enable the pressing block 11 to move towards the flexible bushing 8, because the pressing block 11 is adaptive to the shape of the outer surface of the flexible bushing 8, the pressing block 11 can be completely pressed on the flexible bushing 8, a bulge inside the flexible bushing 8 is enabled to be in sealing contact with the outer surface of the valve rod 3, a short-time sealing effect is achieved, meanwhile, the screw 14 is rotated to enable the pressing plate 13 to move towards the pressing block 11, pressing and positioning of the pressing block 11 in the longitudinal direction are achieved after the pressing plate 13 is in contact with the pressing block 11, the positioning hole 112 and the locking hole 131 are in locking connection through the locking piece, position fixing of the pressing block 11 in the transverse direction is achieved, omnibearing pressing of the pressing block 11 on the flexible bushing 8 is further guaranteed, the sealing effect is achieved in a short time, at this time, the sealing ring 10 can be filled with a repairing agent or the sealing ring 10 is disassembled for replacement and maintenance, after the maintenance of sealing washer 10 is accomplished, remove the retaining member, rotation screw 14 makes clamp plate 13 keep away from briquetting 11, and pulling pull ring 111 makes briquetting 11 keep away from flexible bush 8 simultaneously, releases the pressfitting of flexible bush 8 to valve rod 3, and sealing washer 10 plays sealed effect again, and the maintenance of sealing washer 10 can be accomplished to the work that the overall process need not stop the butterfly valve, the improvement of very big degree maintenance work efficiency.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a cooling water filter butterfly valve convenient to maintenance which characterized in that: the valve comprises a handle, wherein one end of the handle is fixedly connected with one end of a valve rod, a fluted disc is fixedly connected on the handle coaxially with the valve rod, a valve body is detachably matched with the fluted disc in an inserting manner, a through hole is vertically formed through the valve body, the valve rod coaxially and rotatably penetrates through the through hole, a hollow structure is formed through the end face of the side of the valve body, and a valve clack is arranged on the circumferential surface of the valve rod corresponding to the hollow structure of the valve body, so that the valve clack rotates in the hollow structure of the valve body under the driving of the rotation of the valve rod; the valve comprises a valve body, a valve clack, a valve rod, a flexible bushing and a pressing block, wherein the valve rod is arranged at the lower end of the valve clack, the valve rod is arranged on the outer side of the circumference of the valve clack, the valve rod is sequentially coaxially sleeved with the bearing and the sealing ring from top to bottom, a transverse hole is formed in the valve body between the bearing and the sealing ring, the flexible bushing is arranged on the inner wall of the through hole corresponding to the position of the hole, the pressing block is arranged in the hole in a sliding mode, and the pressing block can press the flexible bushing to deform.

2. The easy-to-repair butterfly valve for a cooling water filter according to claim 1, wherein: the valve body is fixedly connected with a connecting part, and a pressing plate is movably arranged on the surface of the connecting part corresponding to the position of the opening, so that the pressing plate can be close to the opening and far away from the opening.

3. The easy-to-repair butterfly valve for a cooling water filter according to claim 2, wherein: the pressing plate is movably connected with the connecting portion through a screw, the pressing plate is close to the threaded tail end of the screw and fixedly connected to the surface of the connecting portion, and the threaded outer surface of the screw penetrates through the connecting portion to be in threaded fit connection.

4. The easy-to-repair butterfly valve for a cooling water filter according to claim 3, wherein: the pressing plate is provided with a locking hole perpendicular to the pressing block, and a positioning hole is formed in the position, corresponding to the locking hole, of the pressing block, so that the positioning hole is in locking connection with the locking hole through a locking piece when the flexible bushing is pressed by the pressing block.

5. The easy-to-repair butterfly valve for a cooling water filter according to claim 1, wherein: and a pull ring is arranged on the side end face of the pressing block, and the pressing block moves along the opening by pulling the pull ring.

6. The easy-to-repair butterfly valve for a cooling water filter according to claim 1, wherein: the end face shape of the pressing block corresponding to the flexible lining is matched with the shape of the outer wall of the flexible lining, so that the pressing block is completely pressed on the outer wall of the flexible lining.

7. The easy-to-repair butterfly valve for a cooling water filter according to claim 6, wherein: the opening and the pressing block are symmetrically arranged into two parts along the valve rod.

8. The easy-to-repair butterfly valve for a cooling water filter according to claim 1, wherein: the flexible lining is made of waterproof cloth, plastic or polymer materials.

9. A cooling water filter butterfly valve for easy maintenance according to any of claims 1-8, characterised in that: and a bulge is arranged on the inner wall of the flexible bushing at a position corresponding to the flexible bushing pressed by the pressing block, so that after the pressing block presses the flexible bushing, the bulge presses the circumferential outer surface of the valve rod.