CN219588127U

CN219588127U - Check butterfly valve

Info

Publication number: CN219588127U
Application number: CN202321130120.4U
Authority: CN
Inventors: 胡丰; 施秀量; 胡赋; 余联环; 林爱静
Original assignee: GANGYE GROUP CO Ltd
Current assignee: GANGYE GROUP CO Ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-08-25
Anticipated expiration: 2033-05-11

Abstract

The utility model belongs to the field of check butterfly valves, in particular to a check butterfly valve, and aims at the problem that the existing check butterfly valve is easy to loosen and cannot be sealed.

Description

Check butterfly valve

Technical Field

The utility model relates to the technical field of check butterfly valves, in particular to a check butterfly valve.

Background

Butterfly check valves are valves for preventing the backflow of a medium, also called check valves, one-way valves, reverse flow valves, and back pressure valves, by automatically opening and closing a valve flap depending on the flow of the medium itself. The check valve belongs to an automatic valve, and has the main functions of preventing medium backflow, preventing reverse rotation of a pump and a driving motor, and discharging the medium of a container. The check valve may also be used on a line to provide makeup to auxiliary systems where the pressure may rise above the system pressure. The check valve is mainly classified into a swing check valve (rotated by the center of gravity), a lift check valve (moved along an axis), and a butterfly check valve (rotated by the center).

The patent net discloses a hydraulically-controlled check butterfly valve, and the application number is: 201720464413.4 the utility model relates to a hydraulic control check butterfly valve, which is an improved design structure of the hydraulic control check butterfly valve, and the basic structure of the hydraulic control check butterfly valve comprises a valve body, a valve core arranged in the valve body, an upper valve cover and a lower valve cover which are respectively arranged on the valve body, an upper valve rod of which the lower end is connected with an upper support lug of the valve core and the upper end is exposed out of the upper valve cover, a lower valve rod shaft of which the upper end is connected with a lower support lug of the valve core and the lower end is exposed out of the lower valve cover, and an upper bracket arranged on the valve body; the utility model has reasonable design, compact structure and convenient use.

The pipeline medium backflow prevention needs to use the check butterfly valve, and the problem that the technology exists is that after the sealing of the hydraulic control check butterfly valve is finished, high-pressure water can extrude the hydraulic control check butterfly valve, the hydraulic control check butterfly valve can leak water when being subjected to high pressure, the hydraulic control check butterfly valve cannot be limited and fixed, and therefore the sealing effect of the hydraulic control check butterfly valve is poor.

Disclosure of Invention

The utility model aims to solve the defect that the check butterfly valve is easy to loosen and cannot be sealed in the prior art.

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

the check butterfly valve comprises a butterfly valve shell and a sealing baffle plate positioned in the butterfly valve shell and used for sealing, a gearbox used for rotating the sealing baffle plate is fixedly connected to the left side of the sealing baffle plate, the gearbox is fixedly connected with the surface of the butterfly valve shell, and a rotating handle used for rotating the gearbox is fixedly connected to the top of the gearbox;

the right side of the sealing baffle is fixedly connected with a fixed column penetrating through the butterfly valve shell, the surface of the fixed column is sleeved with a movable sleeve for limiting the fixed column, and the inside of the movable sleeve is provided with an adjusting structure for being connected with the surface of the butterfly valve shell;

the bottom inside the movable sleeve is provided with a limiting and fixing structure for limiting the fixed column.

Preferably, the adjusting structure comprises a rotating rod fixedly connected with the butterfly valve shell, a nut is sleeved on the surface of the rotating rod, threads for rotating the nut are formed in the surface of the rotating rod, the left side of the nut is in contact connection with an abutting ring, and a clamping block for limiting the movable sleeve is fixedly connected to the top and the bottom of the left side of the abutting ring.

Preferably, the limiting and fixing structure comprises a connecting ring fixedly connected with the surface of the fixing column and a movable shell positioned inside the movable sleeve, a positioning rod used for limiting the connecting ring is arranged inside the movable shell, the right side of the positioning rod penetrates through the right side of the movable shell, and a pull ring used for pulling the positioning rod is arranged on the right side of the inner part of the positioning rod.

Preferably, an opening for rotating the rod to move is formed in the movable sleeve, and a plurality of clamping grooves for clamping the clamping blocks are formed in the surface of the movable sleeve.

Preferably, the surface of the positioning rod is fixedly connected with a limiting column for limiting the positioning rod, and the right side of the connecting ring is provided with a positioning groove for positioning the connecting ring.

Preferably, the surface of the positioning rod is sleeved with a reset spring, and two ends of the reset spring are fixedly connected with the inner wall of the movable shell and the surface of the limiting column respectively.

Advantageous effects

1. According to the utility model, by arranging the butterfly valve shell, the sealing baffle, the gearbox, the rotating handle, the fixed column, the adjusting structure and the limiting and fixing structure, the sealing baffle can be driven to seal the butterfly valve shell by the gearbox to rotate through rotating the rotating handle, and meanwhile, the sealing baffle can be limited by the adjusting structure and the limiting and fixing structure, so that the structure is prevented from reversing, and the problem that the check butterfly valve is easy to loose and cannot be sealed in the prior art is solved.

2. According to the butterfly valve, the adjusting structure is arranged, the movable sleeve can rotate on the surface of the rotating rod through rotating the movable sleeve, the nut on the surface of the rotating rod is screwed, the nut presses the abutting ring, and the abutting ring drives the clamping block to be clamped on the surface of the movable sleeve, so that the movable sleeve and the butterfly valve shell are connected and fixed.

3. According to the utility model, the limiting and fixing structure is arranged, so that the connecting ring can be driven to rotate by the fixing column, the connecting ring is driven to rotate in fixing when the sealing baffle seals the butterfly valve shell, and the locating rod is clamped into the connecting ring when the sealing baffle rotates to a proper position, so that the purpose of limiting and fixing the connecting ring is achieved.

4. According to the utility model, the opening and the clamping groove are arranged, so that the rotary rod can be conveniently moved, the clamping of the rotary rod is avoided, the clamping groove can be conveniently clamped on the surface of the movable sleeve, and the movable sleeve is limited and fixed.

5. According to the utility model, the limiting column and the positioning groove are arranged, so that the limiting guide effect on the positioning rod can be realized, the situation that the positioning rod is separated from the inside of the movable shell is avoided, and the positioning groove can be convenient for the positioning rod to be clamped into the inside of the connecting ring, so that the connecting ring is limited and fixed.

6. According to the utility model, by arranging the reset spring, when the limit post moves, the limit post extrudes the reset spring, and when the pull ring is loosened, the limit post drives the positioning rod to be clamped into the positioning groove.

Drawings

FIG. 1 is a schematic diagram of a front view of a check butterfly valve according to the present utility model;

FIG. 2 is a schematic structural perspective view of a check butterfly valve according to the present utility model;

FIG. 3 is a perspective view of a movable sleeve of a check butterfly valve according to the present utility model;

FIG. 4 is a schematic semi-sectional perspective view of a movable sleeve of a check butterfly valve according to the present utility model;

FIG. 5 is an enlarged schematic view of the portion A of the check butterfly valve according to the present utility model;

fig. 6 is an enlarged schematic view of a portion B of the check butterfly valve according to the present utility model.

In the figure: 1. a butterfly valve housing; 2. a sealing baffle; 3. a gearbox; 4. a rotating handle; 5. fixing the column; 6. a movable sleeve; 7. a rotating rod; 8. a nut; 9. an abutment ring; 10. a clamping block; 11. a connecting ring; 12. a movable case; 13. a positioning rod; 14. a pull ring; 15. an opening; 16. a clamping groove; 17. a limit column; 18. a positioning groove; 19. and a return spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1-6, a check butterfly valve comprises a butterfly valve shell 1 and a sealing baffle plate 2 positioned in the butterfly valve shell 1 and used for sealing, wherein a gearbox 3 used for rotating the sealing baffle plate 2 is fixedly connected to the left side of the sealing baffle plate 2, the gearbox 3 is fixedly connected with the surface of the butterfly valve shell 1, and a rotating handle 4 used for rotating the gearbox 3 is fixedly connected to the top of the gearbox 3;

the right side of the sealing baffle plate 2 is fixedly connected with a fixed column 5 penetrating through the butterfly valve shell 1, the surface of the fixed column 5 is sleeved with a movable sleeve 6 used for limiting the fixed column 5, and the inside of the movable sleeve 6 is provided with an adjusting structure used for being connected with the surface of the butterfly valve shell 1;

the bottom inside the movable sleeve 6 is provided with a limiting and fixing structure for limiting the fixed column 5.

Example two

Improvement on the basis of the first embodiment: comprises a butterfly valve shell 1 and a sealing baffle plate 2 positioned in the butterfly valve shell 1 and used for sealing, a gearbox 3 used for rotating the sealing baffle plate 2 is fixedly connected to the left side of the sealing baffle plate 2, the gearbox 3 is fixedly connected with the surface of the butterfly valve shell 1, a rotating handle 4 used for rotating the gearbox 3 is fixedly connected to the top of the gearbox 3, a fixed column 5 penetrating the butterfly valve shell 1 is fixedly connected to the right side of the sealing baffle plate 2, a movable sleeve 6 used for limiting the fixed column 5 is sleeved on the surface of the fixed column 5, an adjusting structure used for being connected with the surface of the butterfly valve shell 1 is arranged in the movable sleeve 6, the adjusting structure comprises a rotating rod 7 fixedly connected with the butterfly valve shell 1, a nut 8 is sleeved on the surface of the rotating rod 7, threads used for rotating the nut 8 are formed on the surface of the rotating rod 7, a supporting ring 9 is connected to the left side contact of the nut 8, the top and the bottom of the left side of the supporting ring 9 are fixedly connected with a clamping block 10 used for limiting the movable sleeve 6, the movable sleeve 6 can rotate on the surface of the rotary rod 7 through rotating the movable sleeve 6, the nut 8 on the surface of the rotary rod 7 is screwed, the nut 8 extrudes the supporting ring 9, the supporting ring 9 drives the clamping block 10 to clamp on the surface of the movable sleeve 6, the movable sleeve 6 and the butterfly valve shell 1 are connected and fixed, an opening 15 used for the movement of the rotary rod 7 is formed in the movable sleeve 6, a plurality of clamping grooves 16 used for clamping the clamping block 10 are formed in the surface of the movable sleeve 6, the movement of the rotary rod 7 can be facilitated, the clamping block 10 can be conveniently clamped on the surface of the movable sleeve 6, the movable sleeve 6 is limited and fixed, a limiting and fixing structure used for limiting the fixed column 5 is arranged at the bottom of the inner part of the movable sleeve 6, the limiting and fixing structure comprises a connecting ring 11 fixedly connected with the surface of the fixed column 5, and be located the inside movable shell 12 of movable sleeve 6, the inside of movable shell 12 is provided with the locating lever 13 that is used for spacing to go-between 11, the right side of locating lever 13 runs through to the right side of movable shell 12, the right side of locating lever 13 inside is provided with the pull ring 14 that is used for pulling locating lever 13, can drive go-between 11 and rotate when fixed column 5 drives go-between 11, when seal baffle 2 seals butterfly valve shell 1, drive go-between 11 and rotate in the fixed, when rotating to suitable position, the inside of go-between 11 is gone into to locating lever 13 card, reach the purpose of spacing fixed to go-between 11, the fixed surface of locating lever 13 is connected with the spacing post 17 that is used for spacing locating lever 13, the fixed slot 18 that is used for go-between 11 location is seted up on the right side of locating lever 11, can play spacing guide to locating lever 13, avoid locating lever 13 to appear breaking away from the inside the movable shell 12 condition, locating slot 18 can make things convenient for locating lever 13 card to go into the inside of go-between 11, carry out spacing fixed to go-between 11, the surface cover of locating lever 13 is equipped with reset spring 19, and reset spring 19's surface cover when moving to the inner wall and moving to the fixed column 17 of connecting column 17 when moving to the fixed column 17, the limit post 17 is gone into to the fixed column 17 when moving to the fixed column 17, when moving the fixed column 17 is released to the locating lever 17.

However, as well known to those skilled in the art, the working principles and wiring methods of the butterfly valve housing 1, the sealing baffle 2 and the gearbox 3 are well known, and all belong to conventional means or common general knowledge, and are not described herein in detail, and any choice can be made by those skilled in the art according to their needs or convenience.

In the utility model, when a pipeline needs to be closed, the movable sleeve 6 is twisted firstly to enable the movable sleeve 6 to slide on the surface of the rotary rod 7, when the movable sleeve 6 moves to a proper position, the nut 8 is rotated to abut against the abutting ring 9, the abutting ring 9 drives the clamping block 10 to be clamped into the movable sleeve 6, the rotating handle 4 is rotated to drive the gearbox 3 to rotate, the gearbox 3 drives the sealing baffle 2 to rotate, meanwhile, the sealing baffle 2 drives the fixed column 5 to rotate, the fixed column 5 drives the connecting ring 11 to rotate, when the connecting ring 11 rotates to a proper position, the reset spring 19 rebounds the limit column 17, the limit column 17 drives the positioning rod 13 to be clamped into the positioning groove 18 of the connecting ring 11, the purpose of limiting the sealing baffle 2 is achieved, the sealing baffle 2 is prevented from being misplaced, when the continuous operation is needed, the pull ring 14 is pulled, the positioning rod 13 is driven to be separated from the inside the connecting ring 11, and the purpose of rotating the sealing baffle 2 and the fixed column 5 is achieved.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The check butterfly valve is characterized by comprising a butterfly valve shell (1) and a sealing baffle plate (2) which is positioned in the butterfly valve shell (1) and used for sealing, wherein a gearbox (3) used for rotating the sealing baffle plate (2) is fixedly connected to the left side of the sealing baffle plate (2), the gearbox (3) is fixedly connected with the surface of the butterfly valve shell (1), and a rotating handle (4) used for rotating the gearbox (3) is fixedly connected to the top of the gearbox (3);

the right side of the sealing baffle plate (2) is fixedly connected with a fixed column (5) penetrating through the butterfly valve shell (1), the surface of the fixed column (5) is sleeved with a movable sleeve (6) for limiting the fixed column (5), and an adjusting structure for being connected with the surface of the butterfly valve shell (1) is arranged in the movable sleeve (6);

the bottom inside the movable sleeve (6) is provided with a limiting and fixing structure for limiting the fixed column (5).

2. The non-return butterfly valve according to claim 1, characterized in that the adjusting structure comprises a rotating rod (7) fixedly connected with a butterfly valve housing (1), a nut (8) is sleeved on the surface of the rotating rod (7), threads for rotating the nut (8) are arranged on the surface of the rotating rod (7), a supporting ring (9) is connected to the left side of the nut (8) in a contact manner, and clamping blocks (10) for limiting the movable sleeve (6) are fixedly connected to the top and the bottom of the left side of the supporting ring (9).

3. The non-return butterfly valve according to claim 1, characterized in that the limiting and fixing structure comprises a connecting ring (11) fixedly connected with the surface of the fixed column (5) and a movable shell (12) positioned inside the movable sleeve (6), a positioning rod (13) used for limiting the connecting ring (11) is arranged inside the movable shell (12), the right side of the positioning rod (13) penetrates through the right side of the movable shell (12), and a pull ring (14) used for pulling the positioning rod (13) is arranged on the right side inside the positioning rod (13).

4. The non-return butterfly valve according to claim 2, characterized in that the inside of the movable sleeve (6) is provided with an opening (15) for the movement of the rotary rod (7), and the surface of the movable sleeve (6) is provided with a plurality of clamping grooves (16) for clamping the clamping blocks (10).

5. A non-return butterfly valve according to claim 3, characterized in that the surface of the positioning rod (13) is fixedly connected with a limiting column (17) for limiting the positioning rod (13), and the right side of the connecting ring (11) is provided with a positioning groove (18) for positioning the connecting ring (11).

6. The non-return butterfly valve according to claim 5, wherein the surface of the positioning rod (13) is sleeved with a return spring (19), and two ends of the return spring (19) are fixedly connected with the inner wall of the movable shell (12) and the surface of the limit post (17) respectively.