CN211059374U

CN211059374U - Butterfly valve convenient to maintenance

Info

Publication number: CN211059374U
Application number: CN201921959483.2U
Authority: CN
Inventors: 齐砚之
Original assignee: Tianjin Bohai Yongquan Valve Co ltd
Current assignee: Tianjin Bohai Yongquan Valve Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-07-21
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a butterfly valve convenient to maintenance, including lower valve body and last valve body, the both ends of valve body and last valve body all are equipped with fastener down, fixed mounting has first fixed pipe on the roof of going up the valve body, the top of first fixed pipe can be dismantled and be connected with the fixed pipe of second, the top demountable installation of the fixed pipe of second has the support, threaded connection has a plurality of second fastening bolt on the roof of support. The utility model discloses well adjust first fastening bolt, make and go up valve body and lower valve body separation, adjust third fastening bolt and dismantle the flange, can make the fixed pipe separation of first fixed pipe and second, adjust second fastening bolt, can make the fixed pipe separation of support and second, consequently can take the valve rod out from last valve body, maintain and change butterfly valve each part, promoted the life of butterfly valve.

Description

Butterfly valve convenient to maintenance

Technical Field

The utility model relates to a butterfly valve technical field especially relates to a butterfly valve convenient to maintenance and repair.

Background

The butterfly valve is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline medium, i.e. a valve whose closing member is a disk and can be rotated around the valve shaft to open and close, and can be used for controlling the flow of various fluids of air, water, steam, various corrosive media, slurry, oil product, liquid metal and radioactive medium, etc. and mainly playing the role of cutting off and throttling on the pipeline.

The existing butterfly valve is mostly a whole and is difficult to detach, so that the butterfly valve is not convenient to maintain and repair, the service life of the butterfly valve is shortened, the sealing performance of the existing butterfly valve is poor, fluid is easy to overflow, the using effect of the butterfly valve is influenced, and therefore improvement needs to be made to the butterfly valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the butterfly valve is difficult to disassemble and has poor sealing performance in the prior art and providing a butterfly valve convenient for maintenance and repair.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

A butterfly valve convenient to maintain and repair comprises a lower valve body and an upper valve body, wherein fastening devices are arranged at two ends of the lower valve body and two ends of the upper valve body, a first fixing pipe is fixedly arranged on the top wall of the upper valve body, a second fixing pipe is detachably connected to the top end of the first fixing pipe, a support is detachably mounted at the top end of the second fixing pipe, a plurality of second fastening bolts are in threaded connection with the top wall of the support, each second fastening bolt penetrates through the support and is in threaded connection with the second fixing pipe, a base is fixedly mounted on the bottom wall of the lower valve body, a bearing is arranged in the base, a valve rod is rotatably mounted in the lower valve body and the upper valve body together, a butterfly plate is fixedly mounted on the valve rod, the bottom end of the valve rod is inserted in the bearing, the top end of the valve rod penetrates through the first fixing pipe, the second fixing pipe and the support and extends to, the top fixed mounting of valve rod has the gear, rotate on the gear and install the handle, all be equipped with the fixing device who mutually supports with the handle on the lateral wall of support both sides, fixed mounting has the stop device who mutually supports with the handle on the roof of support.

Preferably, the fastening device comprises a plurality of first fastening bolts in threaded connection with the upper valve body, the first fastening bolts penetrate through the upper valve body and are in threaded connection with the lower valve body, the bottom ends of the first fastening bolts penetrate through the lower valve body, the bottom ends of the first fastening bolts are in threaded connection with first fastening nuts, two convex blocks are symmetrically and fixedly mounted on the bottom walls of the two ends of the upper valve body, and grooves matched with the convex blocks are formed in the top walls of the two ends of the lower valve body.

Preferably, flanges are fixedly mounted on the outer side walls of the opposite ends of the first fixing pipe and the second fixing pipe, a plurality of third fastening bolts are inserted into the two flanges together, and each third fastening bolt is connected with a second fastening nut in a threaded manner.

Preferably, the outer side wall of the butterfly plate is provided with an annular clamping groove, a gasket is fixedly mounted in the clamping groove, and the gasket is made of polytetrafluoroethylene materials.

Preferably, an internal gear engaged with the gear is fixedly installed in the handle.

Preferably, the fixing device comprises a fixing pin inserted on the outer side wall of the support, the fixing pin penetrates through the support and is inserted on the handle, and a fixing groove matched with the fixing pin is formed in the outer side wall of the handle.

Preferably, the limiting device comprises a first fixing block fixedly mounted on the support, and a second fixing block is fixedly mounted on the top wall of the support close to the fixing pin.

Compared with the prior art, the utility model discloses there is following beneficial effect:

1. The first fastening bolt is adjusted to separate the upper valve body from the lower valve body, the third fastening bolt is adjusted to detach the flange, the first fixing pipe and the second fixing pipe can be separated, and the second fastening bolt is adjusted to separate the bracket from the second fixing pipe, so that the valve rod can be drawn out of the upper valve body, all parts of the butterfly valve can be maintained, maintained and replaced, and the service life of the butterfly valve is prolonged;

2. The annular gasket on the butterfly plate can be tightly attached to the inner wall of the valve body, so that the gap between the gasket and the inner wall is greatly reduced, fluid is prevented from overflowing, and the sealing performance of the butterfly valve is improved.

Drawings

Fig. 1 is a front cross-sectional view of a butterfly valve convenient for maintenance according to the present invention;

FIG. 2 is an enlarged view of the structure of the portion A of the butterfly valve convenient for maintenance;

Fig. 3 is a top view of a structure of a portion a of a butterfly valve convenient for maintenance and repair according to the present invention;

Fig. 4 is the utility model provides a butterfly valve handle internal portion's that is convenient for maintenance and repair schematic diagram.

In the figure: the valve comprises a lower valve body 1, an upper valve body 2, a first fastening bolt 3, a first fastening nut 4, a protruding block 5, a first fixing pipe 6, a second fixing pipe 7, a flange 8, a support 9, a second fastening bolt 10, a handle 11, a base 12, a valve rod 13, a gear 14, an internal gear 15, a butterfly plate 16, a gasket 17, a fixing pin 18, a first fixing block 19 and a second fixing block 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a butterfly valve convenient to maintenance, including lower valve body 1 and upper valve body 2, lower valve body 1 all is equipped with fastener with the both ends of upper valve body 2, fastener includes a plurality of threaded connection first fastening bolt 3 on upper valve body 2, first fastening bolt 3 runs through upper valve body 2 and threaded connection is on lower valve body 1, and the bottom of first fastening bolt 3 runs through lower valve body 1 and sets up, the bottom threaded connection of first fastening bolt 3 has first fastening nut 4, symmetry fixed mounting has two lugs 5 on the diapire at upper valve body 2 both ends, set up the recess of mutually supporting with lug 5 on the roof at lower valve body 1 both ends, prevent that the both ends of upper valve body 2 and lower valve body 1 from sliding, with lower valve body 1 and the inseparable connection of upper valve body 2 together, the normal use of butterfly valve has been guaranteed.

Go up fixed mounting on the roof of valve body 2 and have first fixed pipe 6, the top of first fixed pipe 6 can be dismantled and be connected with the fixed pipe 7 of second, equal fixed mounting has flange 8 on the lateral wall of the relative one end of the fixed pipe 6 of first fixed pipe and second 7, insert jointly on two flanges 8 and be equipped with a plurality of third fastening bolts, equal threaded connection has second fastening nut on every third fastening bolt, make the inseparable connection of the fixed pipe 7 of first fixed pipe 6 and second, the leakproofness between the fixed pipe 7 of first fixed pipe 6 and second has been improved.

The top demountable installation of second fixed tube 7 has support 9, threaded connection has a plurality of second fastening bolt 10 on the roof of support 9, and every second fastening bolt 10 all runs through support 9 and threaded connection on second fixed tube 7, fixed mounting has base 12 on the diapire of lower valve body 1, be equipped with the bearing in the base 12, lower valve body 1 and last valve body 2 in rotate jointly and install valve rod 13, fixed mounting has butterfly plate 16 on the valve rod 13, ring groove has been seted up on the lateral wall of butterfly plate 16, fixed mounting has packing ring 17 in the draw-in groove, and packing ring 17 adopts the polytetrafluoroethylene material to make, not only strengthened packing ring 17's leakproofness, the corrosion resistance of packing ring 17 has still been improved.

The bottom of valve rod 13 is inserted and is established on the bearing, and first fixed pipe 6, the fixed pipe 7 of second and support 9 are run through and extend to the upside of support 9 on the top of valve rod 13, and the top fixed mounting of valve rod 13 has gear 14, rotates on the gear 14 to install handle 11, and fixed mounting has internal gear 15 with gear 14 intermeshing in the handle 11, can drive valve rod 13 and rotate, can also conveniently dismantle handle 11.

All be equipped with the fixing device who mutually supports with handle 11 on the lateral wall of support 9 both sides, fixing device is including inserting the fixed pin 18 of establishing on the lateral wall of support 9, and fixed pin 18 runs through support 9 and inserts and establish on handle 11, set up the fixed slot of mutually supporting with fixed pin 18 on the lateral wall of handle 11, rotate behind the handle 11, can be fixed with handle 11, prevent that handle 11 from rocking, make valve rod 13 rotate, influence the result of use of butterfly valve, fixed mounting has the stop device who mutually supports with handle 11 on the roof of support 9, stop device includes first fixed block 19 of fixed mounting on support 9, fixed mounting has second fixed block 20 on the roof that support 9 is close to fixed pin 18, be favorable to during fixed pin 18 inserts the fixed slot, the convenience is fixed handle 11.

The utility model discloses in, adjust and adjust first fastening bolt 3, make and go up valve body 2 and lower valve body 1 separation, adjust third fastening bolt and dismantle flange 8, can make the fixed pipe 7 separation of first fixed pipe 6 and second, adjust second fastening bolt 10, can make the fixed pipe 7 separation of support 9 and second, pull open fixed pin 18, can dismantle handle 11, valve rod 13 just can be taken out from the butterfly valve, then can maintain each part of butterfly valve, maintenance and change, the result of use of butterfly valve has been improved, the life of butterfly valve has been prolonged.

The above, only be the concrete implementation of 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 is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a butterfly valve convenient to maintenance, includes lower valve body (1) and last valve body (2), its characterized in that: the lower valve body (1) and the upper valve body (2) are provided with fastening devices at two ends, a first fixed pipe (6) is fixedly mounted on the top wall of the upper valve body (2), a second fixed pipe (7) is detachably connected to the top end of the first fixed pipe (6), a support (9) is detachably mounted at the top end of the second fixed pipe (7), a plurality of second fastening bolts (10) are in threaded connection on the top wall of the support (9), each second fastening bolt (10) penetrates through the support (9) and is in threaded connection with the second fixed pipe (7), a base (12) is fixedly mounted on the bottom wall of the lower valve body (1), a bearing is arranged in the base (12), a valve rod (13) is installed in the lower valve body (1) and the upper valve body (2) in a rotating mode, a butterfly plate (16) is fixedly mounted on the valve rod (13), and the bottom end of the valve rod (13) is inserted on the bearing, the top of valve rod (13) runs through first fixed pipe (6), the fixed pipe of second (7) and support (9) and extends to the upside of support (9), the top fixed mounting of valve rod (13) has gear (14), rotate on gear (14) and install handle (11), all be equipped with the fixing device who mutually supports with handle (11) on the lateral wall of support (9) both sides, fixed mounting has the stop device who mutually supports with handle (11) on the roof of support (9).

2. A butterfly valve for facilitating maintenance according to claim 1, wherein: the fastening device comprises a plurality of first fastening bolts (3) which are connected with the upper valve body (2) in a threaded mode, the first fastening bolts (3) penetrate through the upper valve body (2) and are connected with the lower valve body (1) in a threaded mode, the bottom end of each first fastening bolt (3) penetrates through the lower valve body (1) and is provided with a first fastening nut (4), two convex blocks (5) are symmetrically and fixedly mounted on the bottom walls of the two ends of the upper valve body (2), and grooves matched with the convex blocks (5) are formed in the top walls of the two ends of the lower valve body (1).

3. A butterfly valve for facilitating maintenance according to claim 1, wherein: equal fixed mounting has flange (8) on the lateral wall of the relative one end of first fixed pipe (6) and second fixed pipe (7), two insert jointly on flange (8) and be equipped with a plurality of third fastening bolt, every equal threaded connection has second fastening nut on the third fastening bolt.

4. A butterfly valve for facilitating maintenance according to claim 1, wherein: an annular clamping groove is formed in the outer side wall of the butterfly plate (16), a gasket (17) is fixedly mounted in the clamping groove, and the gasket (17) is made of polytetrafluoroethylene materials.

5. A butterfly valve for facilitating maintenance according to claim 1, wherein: an internal gear (15) which is meshed with the gear (14) is fixedly arranged in the handle (11).

6. A butterfly valve for facilitating maintenance according to claim 1, wherein: the fixing device comprises a fixing pin (18) inserted on the outer side wall of the support (9), the fixing pin (18) penetrates through the support (9) and is inserted on the handle (11), and a fixing groove matched with the fixing pin (18) is formed in the outer side wall of the handle (11).

7. A butterfly valve for facilitating maintenance according to claim 1, wherein: the limiting device comprises a first fixing block (19) fixedly mounted on a support (9), and a second fixing block (20) is fixedly mounted on the top wall, close to the fixing pin (18), of the support (9).