CN211175420U

CN211175420U - Screw thread butterfly non return of high leakproofness

Info

Publication number: CN211175420U
Application number: CN201920069620.9U
Authority: CN
Inventors: 王庆文
Original assignee: Tianjin Binhai Huayi Valve Co ltd
Current assignee: Tianjin Binhai Huayi Valve Co ltd
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-08-04
Anticipated expiration: 2029-01-16

Abstract

The utility model discloses a screw thread butterfly non return of high leakproofness, including valve body, bearing housing, valve rod and valve plate, the inside both ends bearing housing fixed mounting of valve body has the valve rod, the valve plate is located inside the valve body, and cup joints the valve rod outer wall, the valve body both ends are equipped with the screw thread subassembly, and the valve body top is equipped with the constant head tank. The utility model discloses a twist grip makes the valve rod drive the valve plate and carries out flow control, and the valve body top is equipped with the constant head tank, and the inside screw thread of constant head tank installs No. one the fastening block and runs through valve body department to the valve rod and fix a position sealedly, and No. one the fastening block top is equipped with the use of No. two fastening blocks of clamp plate cooperation, is convenient for carry out fixed mounting through fixing bolt, the utility model discloses simple structure, the equipment of being convenient for, multilayer seal structure promote valve leakproofness and bearing strength, and valve regulation department is difficult impaired, can effectively prolong screw thread butterfly non return life, reduces valve maintenance replacement cost.

Description

Screw thread butterfly non return of high leakproofness

Technical Field

The utility model relates to the technical field of valves, in particular to screw thread butterfly non return of high leakproofness.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. 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.

But the existing butterfly non-return is easy to incline when being installed, a gap is easy to appear at the joint of the adjusting rod and a pipeline, the gap is not needed to be installed, the leakage problem is easy to occur after long-term use, the existing sealing structure is installed through a simple flange, the bearing force of the valve cannot be effectively improved, the sealing performance is lower, the service life is short, and the regular maintenance is needed. Therefore, a thread butterfly check with high sealing performance is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a screw thread butterfly non return of high leakproofness, can effectively solve the problem among the background art.

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

the utility model provides a screw thread butterfly non return of high leakproofness, includes valve body, bearing housing, valve rod and valve plate, the inside both ends bearing housing fixed mounting of valve body has the valve rod, the valve plate is located inside the valve body, and cup joints the valve rod outer wall, the valve body both ends are equipped with the screw thread subassembly, and the valve body top is equipped with the constant head tank, valve rod one end runs through valve body surface and constant head tank in proper order, and fixed mounting has the handle, the constant head tank inner wall installs No. one fastening block through the screw thread, No. one the fastening block top is equipped with the clamp plate, clamp plate bottom surface and the laminating of constant head tank top surface, clamp plate top surface has No. two fastening blocks.

Furthermore, the bottom end of the first fastening block is provided with a sealing ring, and the outer ring of the sealing ring is fixedly connected with the inner wall of the bottom end of the positioning groove through a sealing rubber ring.

Furthermore, No. two fastening blocks are sleeve-shaped fasteners, and No. two fastening block inner walls pass through screw thread and constant head tank fixed mounting, be equipped with the flange piece between No. two fastening blocks and a fastening block, No. one fastening block bottom surface adhesion has the rubber packing ring.

Furthermore, fixing bolt runs through No. two fastening blocks, flange piece, a fastening block and rubber packing ring in proper order and with constant head tank fixed mounting.

Further, the screw thread component is a screw thread part provided with an internal thread.

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

1. the screw thread butterfly check with high sealing performance is characterized in that screw thread components are arranged at two ends of a valve body to quickly connect other pipelines, a valve plate is installed in the valve body, a valve rod drives the valve plate to perform flow regulation by rotating a handle, a positioning groove is formed in the top end of the valve body, a fastening block is installed in the positioning groove in a threaded mode to perform positioning sealing on the position, where the valve rod penetrates through the valve body, of the valve rod, a pressing plate is arranged at the top end of the fastening block to be matched with a fastening block II for use, and the valve is convenient to fix and install through a fixing bolt;

2. the bottom end of the first fastening block is provided with a sealing ring, the outer ring of the sealing ring is fixedly connected with the inner wall of the bottom end of the positioning groove through the sealing rubber ring, and the sealing rubber ring is pressurized when the first fastening block and the positioning groove are installed, so that the sealing ring fixes the position of the bearing sleeve, and the sealing rubber ring fills the gap inside the positioning groove, and the use stability and high sealing performance of the lifting device are improved;

3. no. two the fastening block is the sleeve pipe form fastener, and No. two the fastening block inner wall passes through screw thread and constant head tank fixed mounting, be convenient for install and use, be equipped with the flange piece between No. two fastening blocks and a fastening block, promote the stability of being connected between a fastening block and No. two fastening blocks, No. one the fastening block bottom surface bonding has the rubber packing ring, there is good sealed, shock attenuation and wear-resisting effect, fixing bolt runs through No. two fastening blocks in proper order, the flange piece, a fastening block and rubber packing ring and with constant head tank fixed mounting, moreover, the steam generator is simple in structure, prevent that spare part is loose, make the screw thread butterfly non return use more firm.

Drawings

Fig. 1 is the overall structure schematic diagram of the screw thread butterfly check with high sealing performance of the present invention.

Fig. 2 is the utility model discloses a fastening block schematic structure for a non return of screw thread butterfly of high leakproofness.

Fig. 3 is a schematic view of the internal structure of the positioning groove of the high-sealing check screw thread butterfly of the present invention.

In the figure: 1. a valve body; 2. a bearing housing; 3. a valve stem; 4. a valve plate; 5. a threaded component; 6. positioning a groove; 7. a first fastening block; 8. pressing a plate; 9. a second fastening block; 10. fixing the bolt; 11. a seal ring; 12. sealing the rubber ring; 13. a flange sheet; 14. a rubber gasket; 15. a handle.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a screw thread butterfly non return of high leakproofness, including valve body 1, bearing housing 2, valve rod 3 and

valve plate

4, 1 inside both ends bearing housing 2 fixed mounting of valve body has valve rod 3, valve plate 4 is located 1 inside of valve body, and cup joints 3 outer walls of valve rod, 1 both ends of valve body are equipped with

screw thread subassembly

5, and 1 top of valve body is equipped with

constant head tank

6, 1 surface of valve body and constant head tank 6 are run through in proper order to 3 one end of valve rod, and fixed mounting has handle 15, a fastening block 7 is installed through the screw thread to 6 inner walls of constant head tank, a fastening block 7 top is equipped with

clamp plate

8, 8 bottom surfaces of clamp plate and 6 top surface laminating of constant head tank, 8 top surfaces of clamp plate have No. two fastening blocks 9 through fixing bolt 10 fixed mounting.

This embodiment is as shown in fig. 1-3, and 1 both ends of valve body are equipped with screw thread subassembly 5 and come other pipelines of high-speed joint, install valve plate 4 through in the valve body 1, make valve rod 3 drive valve plate 4 carry out flow control through

turning handle

15, and 1 top of valve body is equipped with constant head tank 6, and constant head tank 6 inside screw thread installs fastening block 7 and runs through valve body 1 department to valve rod 3 and fix a position sealedly, and fastening block 7 top is equipped with 8 cooperation fastening blocks 9 uses of clamp plate, is convenient for carry out fixed mounting through fixing bolt 10, the utility model discloses simple structure, the equipment of being convenient for, multilayer seal structure promotes valve leakproofness and bearing strength, and valve regulation department is difficult impaired, can effectively prolong screw thread butterfly non return life, reduces valve maintenance replacement cost.

Wherein, No. 7 bottom ends of fastening block are equipped with sealing

ring

11, 6 bottom inner walls of constant head tank are connected through sealed rubber ring 12 fixed connection to the 11 outer lanes of sealing ring.

This embodiment is as shown in fig. 1 and 3, and a fastening block 7 bottom is equipped with sealing ring 11, and the 6 bottom inner walls of constant head tank of 12 fixed connection of sealing rubber ring are passed through to sealing ring 11 outer lane, can pressurize sealing rubber ring 11 when a fastening block 7 is installed with constant head tank 6, make sealing ring 11 fix 2 positions of bearing housing, and sealing rubber ring 11 fills constant head tank 6 inside space department, and hoisting device uses steadiness and high leakproofness.

Wherein, No. two fastening block 9 are sleeve pipe form fastener, and No. two fastening block 9 inner walls pass through screw thread and constant head tank 6 fixed mounting, be equipped with flange piece 13 between No. two fastening block 9 and a fastening block 7, No. 7 bottom surface bonding of fastening block has rubber packing ring 14.

This embodiment is as shown in fig. 1 and 2, No. two fastening blocks 9 are the sleeve pipe form fastener, and No. two fastening blocks 9 inner walls pass through screw thread and 6 fixed mounting of constant head tank, the installation of being convenient for is used, is equipped with flange piece 13 between No. two fastening blocks 9 and a fastening block 7, promotes the stability of being connected between a fastening block 7 and No. two fastening blocks 9, No. one fastening block 7 bottom surface bonding has rubber packing ring 14, has good sealed, shock attenuation and wear-resisting effect.

Wherein, fixing bolt 10 runs through No. two fastening blocks 9, flange piece 13, No. one fastening block 7 and rubber packing ring 14 in proper order and with constant head tank 6 fixed mounting.

In the embodiment, as shown in fig. 1 and 2, the fixing bolt 10 sequentially penetrates through the second fastening block 9, the flange piece 13, the first fastening block 7 and the rubber gasket 14 and is fixedly mounted with the positioning groove 6, so that the structure is simple, the parts are prevented from being loose, and the check of the screw thread butterfly is more stable.

Wherein, the screw thread component 5 is a screw thread part provided with internal threads.

This embodiment is shown in fig. 1, and screw assembly 5 is for being equipped with the internal thread screw spare, and is convenient with the pipe connection, promotes staff installation effectiveness.

It should be noted that the utility model relates to a high leakproofness's screw thread butterfly non return, including valve body 1, bearing housing 2, valve rod 3, valve plate 4, screw thread subassembly 5, constant head tank 6, fastening block 7, clamp plate 8, fastening block 9 No. two, fixing bolt 10, sealing ring 11, sealing rubber ring 12, flange piece 13, rubber packing ring 14 and handle 15, the part is general standard component or the part that technical staff in this field knows, its structure and principle all can be known through the technical manual or through conventional experimental method, during operation, valve body 1 both ends are equipped with screw thread subassembly 5 to connect other pipelines fast, screw thread subassembly 5 is the screw thread spare that is equipped with the internal thread, with the pipeline connection convenience, promote staff's installation efficiency, install valve plate 4 through installing in the valve body 1, make valve rod 3 drive valve plate 4 carry out flow control through rotating handle 15, the top end of the valve body 1 is provided with a positioning groove 6, the inner part of the positioning groove 6 is provided with a first fastening block 7 through threads to position and seal the position of the valve rod 3 penetrating through the valve body 1, the bottom end of the first fastening block 7 is provided with a sealing ring 11, the outer ring of the sealing ring 11 is fixedly connected with the inner wall of the bottom end of the positioning groove 6 through a sealing rubber ring 12, the sealing rubber ring 11 is pressurized when the first fastening block 7 and the positioning groove 6 are installed, so that the sealing ring 11 fixes the position of the bearing sleeve 2, the sealing rubber ring 11 fills the gap inside the positioning groove 6, the lifting device has stability and high sealing performance, the top end of the first fastening block 7 is provided with a pressure plate 8 matched with a second fastening block 9 for use, the lifting device is convenient to be fixedly installed through a fixing bolt 10, the second fastening block 9 is a sleeve-shaped fastener, the inner wall of the second fastening block 9 is fixedly installed with the positioning groove 6 through threads, the, promote the stability of being connected between No. 7 fastening blocks and No. two fastening blocks 9, No. 7 fastening blocks bottom surface bonding has rubber packing ring 14, and fixing bolt 10 runs through No. two fastening blocks 9, flange piece 13, No. 7 fastening blocks and rubber packing ring 14 in proper order and with constant head tank 6 fixed mounting, simple structure prevents that spare part is loose, makes the screw thread butterfly non return use more firm, has good sealed, shock attenuation and wear-resisting effect. The utility model discloses simple structure, the equipment of being convenient for, multilayer seal structure promote valve leakproofness and bearing strength, and valve regulation department is difficult impaired, can effectively prolong screw thread butterfly non return life, reduces valve maintenance replacement cost.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a screw thread butterfly non return of high leakproofness, includes valve body (1), bearing housing (2), valve rod (3) and valve plate (4), inside both ends bearing housing (2) fixed mounting of valve body (1) has valve rod (3), valve plate (4) are located inside valve body (1), and cup joint valve rod (3) outer wall, its characterized in that: valve body (1) both ends are equipped with screw thread subassembly (5), and valve body (1) top is equipped with constant head tank (6), valve rod (3) one end runs through valve body (1) surface and constant head tank (6) in proper order, and fixed mounting has handle (15), No. one fastening block (7) is installed through the screw thread to constant head tank (6) inner wall, No. one fastening block (7) top is equipped with clamp plate (8), clamp plate (8) bottom surface and constant head tank (6) top surface laminating, clamp plate (8) top surface has No. two fastening blocks (9) through fixing bolt (10) fixed mounting.

2. The high-tightness check screw thread butterfly according to claim 1, characterized in that: a fastening block (7) bottom is equipped with sealing ring (11), sealing ring (11) outer lane is through sealed rubber ring (12) fixed connection constant head tank (6) bottom inner wall.

3. The high-tightness check screw thread butterfly as claimed in claim 2, wherein: no. two fastening block (9) are sleeve pipe form fastener, and No. two fastening block (9) inner wall passes through screw and constant head tank (6) fixed mounting, be equipped with flange piece (13) between No. two fastening block (9) () and a fastening block (7), No. one fastening block (7) bottom surface adhesion has rubber packing ring (14).

4. The high-tightness check screw thread butterfly according to claim 1, characterized in that: the fixing bolt (10) penetrates through the second fastening block (9), the flange piece (13), the first fastening block (7) and the rubber gasket (14) in sequence and is fixedly installed with the positioning groove (6).

5. The high-tightness check screw thread butterfly according to claim 1, characterized in that: the screw thread component (5) is a screw thread part with internal threads.