CN113915350A

CN113915350A - Hard sealing type vacuum breaking valve

Info

Publication number: CN113915350A
Application number: CN202111085255.9A
Authority: CN
Inventors: 李良城; 仲梅; 何群伟; 石顺天
Original assignee: Jiangsu Zhaonian Intelligent Technology Co ltd
Current assignee: Jiangsu Zhaonian Intelligent Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-11

Abstract

The invention discloses a hard sealing type vacuum breaking valve which comprises a first device body, wherein a first connecting ring is fixedly connected to the back of the first device body, a third device body is arranged on the back of the second device body, first connecting columns are symmetrically inserted into the centers of two second mounting blocks, one sides, opposite to two limiting blocks, of the two limiting blocks are symmetrically attached to the opposite sides of the two connecting blocks, fourth bolts are symmetrically and threadedly connected to the centers of the tops of the two connecting blocks, balance weight rods are symmetrically and fixedly connected to the centers of the backs of the two connecting blocks, clamping blocks are symmetrically sleeved on the backs of the two balance weight rods, fifth bolts are symmetrically and threadedly connected to the opposite sides of the two clamping blocks, and balancing weights are symmetrically and fixedly connected to the backs of the two clamping blocks. According to the hard sealing type vacuum breaking valve, the valve plate can be sealed by gravity through the balancing weight, so that the valve plate can seal the inner cavity of the second device body, and the device can effectively prevent a pipeline from being shriveled.

Description

Hard sealing type vacuum breaking valve

Technical Field

The invention relates to the field of vacuum valves, in particular to a hard sealing type vacuum breaking valve.

Background

The vacuum valve is a vacuum system element used for changing the air flow direction, adjusting the air flow quantity and cutting off or connecting a pipeline in a vacuum system, and is a valve with the working pressure lower than the standard atmospheric pressure, the vacuum valve closing member is sealed by a rubber sealing ring or a metal sealing ring, the lap joint flange connection is the connection form used most in the valve, the valve can be divided into smooth type according to the shape of a combination surface, the smooth type is used for a valve with low pressure, the processing is convenient, the concave-convex type working pressure is higher, a medium-hard gasket can be used, a tongue-and-groove type gasket with larger plastic deformation can be used, the trapezoidal groove type uses an oval metal ring as the gasket, the trapezoidal groove type is used for a high-temperature valve, the lens type gasket is in a lens shape and is made of metal, the O-shaped ring type is a novel flange connection form, and the sealing effect is better along with the appearance of various rubber O-shaped rings, the developed vacuum valve is more reliable in sealing effect than a common flat gasket, the existing vacuum valve cannot ensure that the vacuum valve has stronger sealing performance, cannot prevent a pipeline from being shriveled, is more complicated in installation, disassembly and repair, and cannot be rapidly assembled and maintained.

Therefore, there is a need to provide a hard seal type vacuum breaker valve to solve the above problems.

Disclosure of Invention

The invention mainly aims to provide a hard sealing type vacuum breaking valve which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the hard sealing type vacuum breaking valve comprises a first device body, wherein a first connecting ring is fixedly connected to the back face of the first device body, a first bolt is connected to the front face of the first connecting ring in a threaded mode, a second device body is arranged on the back face of the first bolt, a third device body is arranged on the back face of the second device body, and balancing weights are symmetrically arranged on the front face and the back face of the top of the second device body.

Preferably, the front side and the back side of the second device body are symmetrically and fixedly connected with a second connecting ring, the front side is fixedly connected with the second connecting ring and the first connecting ring through a first bolt, the front side and the back side of the third device body are symmetrically and fixedly connected with a third connecting ring, the back side is fixedly connected with the second connecting ring and the front side through a second bolt, and a plurality of thread grooves are formed in the surface of the third connecting ring.

Preferably, the front and the back of the top of the second device body are symmetrically and fixedly connected with fixing columns, two first mounting blocks are symmetrically and fixedly connected to one side of the fixing columns opposite to each other, third bolts are connected to the surfaces of the two first mounting blocks in a threaded manner, second mounting blocks are symmetrically attached to one side of the first mounting blocks opposite to each other, and the first mounting blocks and the second mounting blocks are fixedly connected through the third bolts.

Preferably, the fixed column is of a cavity structure, two first connecting columns are symmetrically inserted into the center of the second mounting block, two opposite sides of the first connecting columns symmetrically penetrate through the inner cavity of the fixed column and extend to the inner cavity of the second device body, two connecting blocks are symmetrically arranged on the opposite sides of the first connecting columns, two grooves are symmetrically formed in the center of the connecting blocks, the connecting blocks are symmetrically sleeved on the opposite sides of the two first connecting columns through the grooves, two opposite sides of the first connecting columns are symmetrically and fixedly connected with limiting blocks, two opposite sides of the limiting blocks are symmetrically attached to the opposite sides of the two connecting blocks, and the center of the top of the connecting blocks is in threaded connection with a fourth bolt.

Preferably, two the centre symmetry fixedly connected with counterweight rod at the connecting block back, two the symmetrical cover in back of counterweight rod is equipped with and presss from both sides tight piece, two it has the fifth bolt, two to press from both sides the symmetrical threaded connection in one side that the tight piece carried on the back mutually, press from both sides the symmetrical fixedly connected with balancing weight in back of tight piece.

Preferably, two one sides opposite to the first connecting column are fixedly connected with a second connecting column, and the second connecting column is arranged in an inner cavity of the second device body.

Preferably, the front of second spliced pole is provided with the valve plate, the positive centre of valve plate is provided with the connecting plate, the surperficial threaded connection of connecting plate has the sixth bolt, connecting plate and valve plate pass through sixth bolt fixed connection.

Preferably, the left side and the right side of the back of the connecting plate are symmetrically and fixedly connected with fixing blocks, the bottom of the second connecting column is inserted between the two fixing blocks, a rotating shaft is inserted in the center of each fixing block and the bottom of the second connecting column, and a mounting column is inserted in the right side of the rotating shaft.

Advantageous effects

Compared with the prior art, the invention provides a hard sealing type vacuum breaking valve which has the following beneficial effects:

1. the hard sealing type vacuum breaking valve has the advantages that the first connecting ring, the second device body and the third connecting ring are arranged, so that the first device body, the second device body and the third device body can be fixedly connected through the first bolt and the second bolt, and the third device body can be fixed on any vacuum valve through the arranged thread groove.

2. This broken vacuum valve of hard seal formula, balancing weight through setting up, can utilize gravity to make the valve plate seal, make the valve plate can seal the inner chamber of second device body, during the balancing weight normality, can the tenesmus, can drive the weight lever and push down during the tenesmus, the back that the weight lever can drive the connecting block pushes down, because the side at first spliced pole is fixed to the connecting block, when the connecting block pushes down, can drive first spliced pole and rotate, first spliced pole rotates the back, can drive the second spliced pole and remove to positive top, thereby it seals the inner chamber of second device body to drive the valve plate.

3. This broken vacuum valve of hard seal formula can press from both sides the front of connecting block tightly through the fourth bolt that sets up for first spliced pole can not drop from the inner chamber of connecting block when rotating, and through the stopper that sets up, guaranteed that first spliced pole can not produce when rotating and rock.

4. This broken vacuum valve of hard seal formula can overlap the surface at the counterweight rod through the tight piece that presss from both sides that sets up to the tight piece that will press from both sides through the fifth bolt that sets up tightens up, makes its can be tightly fixed on the surface of counterweight rod, the size of the multiple balancing weight of ability adaptation simultaneously, and dismantles the convenience.

5. This broken vacuum valve of hard seal formula through the sixth bolt that sets up, can be in the same place valve plate and connecting plate are fixed, through the axis of rotation that sets up for the second spliced pole can rotate on its surface when removing, thereby the closed work of cooperation second device body that can be better.

Drawings

FIG. 1 is a schematic structural view of the front face of the present invention;

FIG. 2 is an enlarged view of the invention at A in FIG. 1;

FIG. 3 is a side sectional view of the present invention;

FIG. 4 is a schematic structural view of the front face of the present invention;

FIG. 5 is a cross-sectional view of the top of the present invention;

fig. 6 is an enlarged view of the invention at B in fig. 5.

In the figure: 1. a first device body; 2. a first connecting ring; 3. a first bolt; 4. a second device body; 5. a second connecting ring; 6. a second bolt; 7. a third device body; 8. a third connecting ring; 9. a thread groove; 10. fixing a column; 11. a first mounting block; 12. a second mounting block; 13. a third bolt; 14. a first connecting column; 15. connecting blocks; 16. a groove; 17. a fourth bolt; 18. a limiting block; 19. a weight lever; 20. a clamping block; 21. a fifth bolt; 22. a balancing weight; 23. a second connecting column; 24. a valve plate; 25. a connecting plate; 26. a sixth bolt; 27. a fixed block; 28. a rotating shaft; 29. and (6) mounting the column.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, a hard sealing type vacuum breaking valve comprises a first device body 1, a first connecting ring 2 is fixedly connected to the back of the first device body 1, a first bolt 3 is screwed on the front of the first connecting ring 2, a second device body 4 is arranged on the back of the first bolt 3, a third device body 7 is arranged on the back of the second device body 4, balancing weights 22 are symmetrically arranged on the front and back of the top of the second device body 4, a second connecting ring 5 is symmetrically and fixedly connected to the front and back of the second device body 4, the front second connecting ring 5 is fixedly connected to the first connecting ring 2 through the first bolt 3, a third connecting ring 8 is symmetrically and fixedly connected to the front and back of the third device body 7, the back second connecting ring 5 is fixedly connected to the front third connecting ring 8 through the second bolt 6, a plurality of threaded grooves 9 are formed in the surface of the third connecting ring 8, the front and the back of the top of the second device body 4 are symmetrically and fixedly connected with fixing columns 10, one side of each of the two fixing columns 10, which is opposite to each other, is symmetrically and fixedly connected with a first mounting block 11, the surface of each of the two first mounting blocks 11 is in threaded connection with a third bolt 13, one side of each of the two first mounting blocks 11, which is opposite to each other, is symmetrically attached with a second mounting block 12, the first mounting blocks 11 and the second mounting blocks 12 are fixedly connected through the third bolts 13, each fixing column 10 is of a cavity structure, first connecting columns 14 are symmetrically inserted into the centers of the two second mounting blocks 12, one sides of the two first connecting columns 14, which are opposite to each other, symmetrically penetrate through the inner cavity of the fixing column 10 and extend to the inner cavity of the second device body 4, connecting blocks 15 are symmetrically arranged on one side of each of the two first connecting columns 14, grooves 16 are symmetrically arranged in the centers of the two connecting blocks 15, the two connecting blocks 15 are symmetrically sleeved on one sides of the two first connecting columns 14, which are opposite to each other, the opposite sides of the two first connecting columns 14 are symmetrically and fixedly connected with limiting blocks 18, the opposite sides of the two limiting blocks 18 are symmetrically attached to the opposite sides of the two connecting blocks 15, the center symmetrical threads at the tops of the two connecting blocks 15 are connected with fourth bolts 17, the center symmetrical threads at the back sides of the two connecting blocks 15 are fixedly connected with counterweight rods 19, the back sides of the two counterweight rods 19 are symmetrically sleeved with clamping blocks 20, the opposite sides of the two clamping blocks 20 are symmetrically and spirally connected with fifth bolts 21, the back sides of the two clamping blocks 20 are symmetrically and fixedly connected with counterweight blocks 22, the opposite sides of the two first connecting columns 14 are fixedly connected with second connecting columns 23, the second connecting columns 23 are arranged in the inner cavity of the second device body 4, the front sides of the second connecting columns 23 are provided with valve plates 24, the centers of the front sides of the valve plates 24 are provided with connecting plates 25, and the surfaces of the connecting plates 25 are connected with sixth bolts 26 in a threaded manner, the connecting plate 25 is fixedly connected with the valve plate 24 through a sixth bolt 26, the left side and the right side of the back of the connecting plate 25 are symmetrically and fixedly connected with fixed blocks 27, the bottom of the second connecting column 23 is inserted between the two fixed blocks 27, a rotating shaft 28 is inserted in the center of the fixed block 27 and the bottom of the second connecting column 23, a mounting column 29 is inserted on the right side of the rotating shaft 28, the first device body 1, the second device body 4 and the third device body 7 can be fixedly connected through the first bolt 3 and the second bolt 6 through the arranged first connecting ring 2, the second device body 4 and the third connecting ring 8, the third device body 7 can be fixed on any vacuum valve through the arranged thread groove 9, the valve plate 24 can be sealed through gravity through the arranged balancing weight 22, the inner cavity of the second device body 4 can be sealed by the valve plate 24, and when the balancing weight 22 is in a normal state, the weight rod 19 is driven to press down when the weight rod 19 is dropped, the back surface of the connecting block 15 is driven to press down by the weight rod 19, the connecting block 15 is fixed on the side edge of the first connecting post 14, the first connecting post 14 is driven to rotate when the connecting block 15 is pressed down, the second connecting post 23 is driven to move towards the top of the front surface after the first connecting post 14 rotates, so that the valve plate 24 is driven to seal the inner cavity of the second device body 4, the front surface of the connecting block 15 can be clamped through the arranged fourth bolt 17, the first connecting post 14 cannot fall off from the inner cavity of the connecting block 15 when rotating, the first connecting post 14 is ensured not to shake when rotating through the arranged limiting block 18, the clamping block 20 can be sleeved on the surface of the weight rod 19, and the clamping block 20 can be tightened through the arranged fifth bolt 21, so that the clamping block can be tightly fixed on the surface of the weight rod 19, simultaneously can the multiple counterweight rod 19 of adaptation size, and dismantle conveniently, through the sixth bolt 26 that sets up, can be in the same place valve plate 24 and connecting plate 25 are fixed, through the axis of rotation 28 that sets up for second spliced pole 23 can rotate on its surface when removing, thereby can be better the closed work of cooperation second device body 4.

It should be noted that, the present invention is a hard sealed vacuum breaking valve, when in use, during installation, the end surfaces of the first connecting ring 2, the second connecting ring 5 and the third connecting ring 8 need to be cleaned, such as sundries like paint, after a negative pressure test under working conditions, a line is drawn on the weight lever 19, so as to facilitate the installation and debugging in the field, the first connecting ring 2 on the back side of the first device body 1 is aligned with the second connecting ring 5 on the front side of the second device body 4, the first bolt 3 is used to fixedly connect the first connecting ring 5 on the back side, the second connecting ring 5 on the back side is aligned with the third connecting ring 8 on the front side of the third device body 7, the second bolt 6 is used to fixedly connect the second connecting ring, when the weight 22 is in a normal state, when the weight 22 is pressed downwards, the weight lever 19 drives the back side of the connecting block 15 to press downwards, thereby driving the first connecting columns 14 to rotate, and when the two first connecting columns 14 rotate simultaneously, the third connecting column 23 is driven to move towards the top of the front side of the inner cavity of the second device body 4, thereby it is sealed with the inner chamber of second device body 4 to drive valve plate 24, form the closure state, when third spliced pole 23 removed simultaneously, can drive valve plate 24 through axis of rotation 28 and rotate, make its rotation that can the first spliced pole 14 of adaptation more, thereby will place the pipeline and be inhaled flatly, when carrying out the change of balancing weight 22, take out fifth bolt 21, can loosen clamp 20, thereby take out its rear end from balancing weight pole 19, can carry out the change of balancing weight 22 this moment.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A hard-sealed vacuum breaking valve, comprising a first device body (1), characterized in that a first connecting ring (2) is fixedly connected to the back of the first device body (1), and the first device body (1) is The front surface of the connecting ring (2) is screwed with a first bolt (3), the back of the first bolt (3) is provided with a second device body (4), and the back of the second device body (4) is provided with a second device body (4). The third device body (7), the front and the back of the top of the second device body (4) are symmetrically provided with counterweights (22).

2. A hard-sealed vacuum breaking valve according to claim 1, characterized in that: the front and back of the second device body (4) are symmetrically and fixedly connected with a second connecting ring (5), and the front The second connecting ring (5) and the first connecting ring (2) are fixedly connected by the first bolts (3), and the front and the back of the third device body (7) are symmetrically and fixedly connected with a third connecting ring (8), The second connecting ring (5) on the back and the third connecting ring (8) on the front are fixedly connected by second bolts (6), and the surface of the third connecting ring (8) is provided with several threaded grooves (9). ).

3. A hard-sealed vacuum breaking valve according to claim 2, characterized in that: the front and back of the top of the second device body (4) are symmetrically and fixedly connected with fixed columns (10), and two of the two A first mounting block (11) is symmetrically and fixedly connected on the opposite side of the fixing column (10), and third bolts (13) are threadedly connected to the surfaces of the two first mounting blocks (11). The opposite side of a mounting block (11) is symmetrically fitted with a second mounting block (12), and the first mounting block (11) and the second mounting block (12) are fixedly connected by a third bolt (13).

4 . The hard-sealed vacuum breaking valve according to claim 3 , wherein the fixing column ( 10 ) is a cavity structure, and the center of the two second mounting blocks ( 12 ) is symmetrically inserted in the center. 5 . There are first connecting columns (14), two opposite sides of the first connecting columns (14) symmetrically penetrate the inner cavity of the fixing column (10) and extend to the inner cavity of the second device body (4). A connecting block (15) is symmetrically arranged on the opposite side of the first connecting column (14), a groove (16) is symmetrically opened in the center of the two connecting blocks (15), and the two connecting blocks ( 15) The grooves (16) are symmetrically sleeved on the opposite side of the two first connecting columns (14), and the opposite sides of the two first connecting columns (14) are symmetrically and fixedly connected to the limiting block ( 18), the opposite sides of the two limiting blocks (18) are symmetrically fitted on the opposite side of the two connecting blocks (15), and the top of the two connecting blocks (15) are symmetrically threaded in the middle with Fourth bolt (17).

5. A hard-sealed vacuum breaking valve according to claim 4, characterized in that: a counterweight rod (19) is fixedly and symmetrically connected in the middle of the back of the two connecting blocks (15), and the two A clamping block (20) is symmetrically sleeved on the back of the heavy rod (19), and a fifth bolt (21) is symmetrically threaded on the opposite side of the two clamping blocks (20). The back of the block (20) is symmetrically and fixedly connected with a counterweight block (22).

6. A hard-sealed vacuum breaking valve according to claim 1, characterized in that: a second connecting column (23) is fixedly connected to the opposite side of the two first connecting columns (14), and the The second connecting column (23) is arranged in the inner cavity of the second device body (4).

7 . The hard-sealed vacuum breaking valve according to claim 6 , wherein a valve plate ( 24 ) is provided on the front of the second connecting column ( 23 ), and a valve plate ( 24 ) is provided on the front of the valve plate ( 24 ). 8 . A connecting plate (25) is provided in the center, the surface of the connecting plate (25) is threadedly connected with a sixth bolt (26), and the connecting plate (25) and the valve plate (24) are fixed by the sixth bolt (26) connect.

8 . The hard-sealed vacuum breaking valve according to claim 7 , wherein the left and right sides of the back of the connecting plate ( 25 ) are symmetrically and fixedly connected with fixed blocks ( 27 ), and the second connecting post The bottom of (23) is inserted between the two fixed blocks (27), and a rotating shaft (28) is inserted between the middle of the fixed block (27) and the bottom of the second connecting column (23). A mounting post (29) is inserted into the right side of (28).