CN113915402B

CN113915402B - Diaphragm sealing valve

Info

Publication number: CN113915402B
Application number: CN202111267478.7A
Authority: CN
Inventors: 陈建安
Original assignee: Kunshan Laiheng Clean Materials Co ltd
Current assignee: Kunshan Laiheng Clean Materials Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2024-01-30
Anticipated expiration: 2041-10-29
Also published as: CN113915402A

Abstract

The invention provides a diaphragm seal valve. The diaphragm seal valve comprises a valve body, connectors are arranged on two sides of the valve body, a mounting groove is fixedly connected to the top of the valve body, a valve rod is arranged in the valve body, the top end of the valve rod penetrates through the mounting groove and extends to the top of the mounting groove, a round block is connected to the top of the inner wall of the mounting groove in a rotating mode, the round block is connected with the valve rod in a sliding mode, and a plurality of grooves are formed in the outer surface of the round block. According to the diaphragm seal valve provided by the invention, the valve rod can be protected through the one-way locking function of the lug and the groove, so that the valve rod can pass when the valve body is closed, and can not pass when the valve body is opened, the leakage phenomenon of the valve body can be effectively prevented, after the shifting piece is manually pressed, the lug and the groove are separated, so that the valve rod can pass when the valve body is opened, the operation of opening the valve body can be completed after the two steps are matched, and the safety function can be realized.

Description

Diaphragm sealing valve

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a diaphragm seal valve.

Background

The valve is a mechanical device for controlling the flow rate, flow direction, pressure, temperature and the like of flowing fluid medium, the valve is a basic component in a pipeline system, and the diaphragm valve is a stop valve which uses a diaphragm as an opening and closing piece to seal a flow passage, cut off fluid and separate the inner cavity of the valve body from the inner cavity of the valve cover. The diaphragm is made of rubber, plastic and other materials. Simple structure, good sealing and corrosion resistance, and small fluid resistance. Is used for low-pressure, low-temperature, highly corrosive and suspended matter-containing media.

The diaphragm valve is generally composed of a valve clack, a valve rod, a diaphragm, a valve body, a hand wheel and the like, and fluid medium and valve cavity components are separated by the action of the diaphragm, and the diaphragm valve used in the market at present mainly has the action of opening and closing the diaphragm by driving the valve rod through the hand wheel.

In the related art, the existing diaphragm valve enables the diaphragm to move upwards or downwards by manually rotating the valve rod, so that the valve body is opened or closed, but the valve rod of the existing diaphragm valve does not have any protection measure, is exposed to the outside and is easy to rotate due to unexpected situations, and therefore leakage occurs.

Accordingly, there is a need to provide a diaphragm-sealed valve that solves the above-mentioned problems.

Disclosure of Invention

The invention mainly solves the technical problems existing in the prior art and provides a diaphragm seal valve.

The technical problems of the invention are mainly solved by the following technical proposal: the utility model provides a diaphragm seal valve, includes the valve body, the both sides of valve body all are provided with the joint, the top fixedly connected with mounting groove of valve body, the inside of valve body is provided with the valve rod, the top of valve rod runs through the mounting groove and extends to the top of mounting groove, the top rotation of mounting groove inner wall is connected with the circle piece, the circle piece with valve rod sliding connection, a plurality of recess has been seted up to the surface of circle piece, the open slot has been seted up on the right side of mounting groove, sliding connection has the plectrum between the front and the back of open slot inner wall, the top fixedly connected with fixed shell of plectrum, sliding connection has the sliding block between the top and the bottom of fixed shell inner wall, the right side of sliding block with be provided with first spring between the right side of fixed shell inner wall, the left side fixedly connected with lug, the left side of lug runs through the fixed shell and extends to the left side of fixed shell, the plectrum bottom with be provided with the second spring between the bottom of mounting groove inner wall.

Preferably, the protruding block is matched with the groove, the protruding block is clamped with the groove, and the front face of the protruding block is in an arc-shaped structure.

Preferably, the counterclockwise rotation direction of the valve rod is a tightening direction, and the clockwise rotation direction of the valve rod is a loosening direction.

Preferably, a damping piece is arranged between the valve rod and the mounting groove, and anti-skid patterns are arranged at the rotating handle of the valve rod.

Preferably, the bottom fixedly connected with valve block of valve rod, the bottom of valve block is provided with sealed pad, the holding tank has been seted up to the bottom of valve block, the bottom of valve body inner wall is provided with flow sensor, the surface rotation of valve rod is connected with the connecting plate, the top fixedly connected with installing frame of valve body, sliding connection has the movable block between the both sides of installing frame inner wall, the top fixedly connected with connecting rod of movable block, the top of connecting rod runs through the installing frame and extends to the top of installing frame, the top of connecting rod with the bottom fixed connection of connecting plate, the top fixedly connected with insulation block of movable block, the left side swing joint of installing frame inner wall has the positive plate, the right side swing joint of installing frame inner wall has the negative plate, the positive plate with all be provided with the third spring between the both sides of installing frame inner wall in one side that the negative plate is separated.

Preferably, the accommodating groove is adapted to the flow sensor, the accommodating groove can accommodate the flow sensor therein, and the sealing gasket is arranged around the accommodating groove.

Preferably, the top of the valve body is fixedly connected with a controller, a buzzer is arranged at the top of the valve body and positioned at the left side of the controller, and the controller is electrically connected with the buzzer and the flow sensor.

Preferably, the novel magnetic filter comprises a filter screen, wherein the outer surface of the filter screen is fixedly connected with a metal frame, a plurality of positioning grooves are formed in the back surface of the metal frame, a fixing ring is fixedly connected with the inner surface of the joint, and a plurality of magnetic blocks are fixedly connected with the front surface of the fixing ring.

Preferably, the magnetic block is matched with the positioning groove, the diameter of the metal frame is smaller than that of the joint, and a gap is reserved between the metal frame and the inner surface of the joint.

Preferably, the outer surface of the joint is provided with a plurality of bolt holes.

Compared with the related art, the diaphragm seal valve provided by the invention has the following beneficial effects:

the invention provides a diaphragm seal valve, which can protect a valve rod through the one-way locking function of a lug and a groove, can pass when the valve rod closes a valve body, can not pass when the valve body is opened, can effectively prevent the valve body from leaking, and can realize the safety function by separating the lug from the groove after a poking piece is manually pressed, so that the valve rod can pass when the valve body is opened, and can finish the operation of opening the valve body after the two steps are matched.

Drawings

FIG. 1 is a schematic view of a first embodiment of a diaphragm-sealed valve according to the present invention;

FIG. 2 is a schematic view of the internal structure of the mounting slot shown in FIG. 1;

FIG. 3 is a top view of the buttons shown in FIG. 2;

FIG. 4 is a schematic view of a second embodiment of a diaphragm-sealed valve according to the present invention;

FIG. 5 is an enlarged view of a portion of the view A of FIG. 4;

FIG. 6 is a schematic view of a third embodiment of a diaphragm-sealed valve according to the present invention;

fig. 7 is a side view of the screen of fig. 6.

Reference numerals in the drawings: 1. a valve body; 2. a joint; 3. a mounting groove; 4. a valve stem; 5. round blocks; 6. a groove; 7. an open slot; 8. a pulling piece; 9. a fixed case; 10. a sliding block; 11. a first spring; 12. a bump; 13. a second spring; 14. a damping member; 15. a valve plate; 16. a sealing gasket; 17. a receiving groove; 18. a flow sensor; 19. a connecting plate; 20. a mounting frame; 21. a moving block; 22. a connecting rod; 23. an insulating block; 24. a positive plate; 25. a negative electrode sheet; 26. a third spring; 27. a controller; 28. a buzzer; 29. a filter screen; 30. a metal frame; 31. a positioning groove; 32. a fixing ring; 33. a magnetic block; 34. bolt holes.

Detailed Description

The invention will be further described with reference to the drawings and embodiments.

First embodiment

Referring to fig. 1, fig. 2, and fig. 3 in combination, fig. 1 is a schematic structural diagram of a first embodiment of a diaphragm seal valve according to the present invention; FIG. 2 is a schematic view of the internal structure of the mounting slot shown in FIG. 1; fig. 3 is a top view of the buttons shown in fig. 2. The diaphragm seal valve comprises a valve body 1, all be provided with joint 2 in the both sides of valve body 1, the top fixedly connected with mounting groove 3 of valve body 1, the inside of valve body 1 is provided with valve rod 4, the top of valve rod 4 runs through mounting groove 3 and extends to the top of mounting groove 3, the top rotation of mounting groove 3 inner wall is connected with circle piece 5, circle piece 5 with valve rod 4 sliding connection, a plurality of recess 6 has been seted up to the surface of circle piece 5, open slot 7 has been seted up on the right side of mounting groove 3, sliding connection has plectrum 8 between the front and the back of open slot 7 inner wall, sliding connection has sliding block 10 between the top and the bottom of fixed shell 9 inner wall, be provided with first spring 11 between the right side of sliding block 10 and the right side of fixed shell 9 inner wall, the left side fixedly connected with lug 12, the left side of lug 12 runs through fixed shell 9 and extends to the bottom of fixed shell 9, bottom between the fixed shell 8 and the bottom of fixed shell 8 has the bottom of plectrum.

The bump 12 is matched with the groove 6, the bump 12 is clamped with the groove 6, and the front surface of the bump 12 is in a cambered surface structure.

The cambered surface structure is arranged to facilitate the bump 12 to move rightwards after the bump 12 is pressed by the round block 5.

The counterclockwise rotation direction of the valve rod 4 is the tightening direction, and the clockwise rotation direction of the valve rod 4 is the loosening direction.

A damping piece 14 is arranged between the valve rod 4 and the mounting groove 3, and anti-skid patterns are arranged at the rotating handle of the valve rod 4.

The valve rod 4 is provided with certain damping property through the damping piece 14, and cannot easily rotate, so that the anti-skid effect is achieved through the anti-skid patterns, and the valve rod 4 is convenient for workers to rotate.

The diaphragm seal valve provided by the invention has the following working principle:

the valve rod 4 is rotated anticlockwise to enable the valve body 1 to be closed, the round block 5 is driven to rotate anticlockwise when the valve rod 4 rotates, the lug 12 is extruded through the cambered surface of the lug 12, the lug 12 moves rightwards, the first spring 11 is extruded through the sliding block 10, at the moment, the lug 12 can generate motion interference on the round block 5, the round block 5 can rotate anticlockwise, the valve rod 4 can enable the valve body 1 to be closed, the groove 6 on the round block 5 can be aligned with the round block 5 after the valve body 1 is closed, at the moment, the first spring 11 resets due to self elastic force, the lug 12 moves leftwards, and is inserted into the groove on the round block 5, at the moment, the round block 5 can collide the straight edge of the lug 12 when rotating clockwise, motion interference is generated, the round block 5 can not rotate, at the moment, the valve rod 4 can not rotate, and the valve rod 4 can not pass when the valve body 1 is opened; when the valve body 1 is opened, the pulling piece 8 needs to be manually pressed, so that the pulling piece 8 moves downwards, and then the fixing shell 9 is driven to move downwards, so that the convex block 12 is separated from the groove 6, the round block 5 is not limited any more, the valve rod 4 can rotate clockwise, and the valve body 1 is opened.

through the one-way locking function of lug 12 and recess 6, can protect valve rod 4 for valve rod 4 can pass when closing valve body 1, can not pass when opening valve body 1, can effectually prevent that valve body 1 from leaking the phenomenon from appearing, press down plectrum 8 the back manually, lug 12 and recess 6 separation, thereby make the valve rod can pass when opening valve body 1, just can accomplish the operation of opening valve body 1 after cooperation through two steps, can play the effect of insurance.

Second embodiment

Referring to fig. 4-5 in combination, another diaphragm-sealed valve is proposed in accordance with a second embodiment of the present application based on the diaphragm-sealed valve provided in the first embodiment of the present application. The second embodiment is merely a preferred manner of the first embodiment, and implementation of the second embodiment does not affect the implementation of the first embodiment alone.

Specifically, the second embodiment of the present application provides a diaphragm seal valve's difference lies in, the bottom fixedly connected with valve block 15 of valve rod 4, the bottom of valve block 15 is provided with sealed 16, holding tank 17 has been seted up to the bottom of valve block 15, the bottom of valve body 1 inner wall is provided with flow sensor 18, the surface rotation of valve rod 4 is connected with connecting plate 19, the top fixedly connected with installing frame 20 of valve body 1, sliding connection has movable block 21 between the both sides of installing frame 20 inner wall, the top fixedly connected with connecting rod 22 of movable block 21, the top of connecting rod 22 runs through installing frame 20 and extends to the top of installing frame 20, the top of connecting rod 22 with the bottom fixedly connected with of connecting plate 19, the top fixedly connected with insulation blocking piece 23 of movable block 21, the left side swing joint of installing frame 20 inner wall has positive pole piece 24, the right side swing joint of installing frame 20 inner wall has negative pole piece 25, positive pole piece 24 with negative pole piece 25 is kept away from one side and installs between the third spring 26 of installing between the inner wall 20.

The positive electrode plate 24 and the negative electrode plate 25 are electrically connected with the flow sensor 18, contact between the positive electrode plate 24 and the negative electrode plate realizes the passage of the flow sensor 18 circuit, and separation between the positive electrode plate and the negative electrode plate realizes the disconnection of the flow sensor 18 circuit.

The accommodating groove 17 is adapted to the flow sensor 18, the accommodating groove 17 can accommodate the flow sensor 18 therein, and the gasket 16 is disposed around the accommodating groove 17.

The top of valve body 1 fixedly connected with controller 27, the top of valve body 1 just is located the left side of controller 27 is provided with bee calling organ 28, controller 27 with bee calling organ 28 and flow sensor 18 electricity is connected.

the valve rod 4 is rotated to enable the valve plate 15 to move downwards, after the valve body 1 is blocked, the flow sensor 18 is contained in the containing groove 17, after the flow sensor 18 detects fluid after the leakage phenomenon occurs, signals are fed back to the controller 27, the controller 27 controls the buzzer 28 to be started, people are reminded of the leakage phenomenon, when the valve rod is normally opened, the valve rod 4 is manually rotated to enable the valve plate 15 to move upwards, the valve body 1 is smooth, the valve rod 4 moves upwards to drive the connecting plate 19 to move upwards, then the connecting rod 22 moves upwards, the moving block 21 is driven to move upwards, then the insulating blocking block 23 moves upwards, the insulating blocking block is inserted between the positive plate 24 and the negative plate 25, the circuit of the flow sensor 18 is disconnected, at the moment, fluid passes through the flow sensor 18, the buzzer 28 does not generate an alarm, the function of leakage alarm is achieved, people can conveniently know whether the valve has the leakage situation or not, and safety in use is improved.

Third embodiment

Referring to fig. 6-7 in combination, another diaphragm-sealed valve is proposed in accordance with a third embodiment of the present application based on the diaphragm-sealed valve provided in the first embodiment of the present application. The third embodiment is merely a preferred manner of the first embodiment, and implementation of the third embodiment does not affect the implementation of the first embodiment alone.

Specifically, the third embodiment of the present application provides a diaphragm seal valve, which is characterized in that the diaphragm seal valve further comprises a filter screen 29, wherein the outer surface of the filter screen 29 is fixedly connected with a metal frame 30, a plurality of positioning grooves 31 are formed in the back of the metal frame 30, a fixing ring 32 is fixedly connected with the inner surface of the joint 2, and a plurality of magnetic blocks 33 are fixedly connected with the front surface of the fixing ring 32.

The magnetic block 33 and the metal frame 30 can be attracted and fixed, so that the filter screen 29 is more convenient to install, and the magnetic block 33 can be clamped into the positioning groove through the positioning groove 31, so that the metal frame 30 is positioned, and the filter screen 29 is positioned.

The magnetic block 33 is adapted to the positioning groove 31, the diameter of the metal frame 30 is smaller than that of the joint 2, and a gap is reserved between the metal frame 30 and the inner surface of the joint 2.

The outer surface of the joint 2 is provided with a plurality of bolt holes 34.

The connection between the valve body 1 and the pipe is facilitated by the arrangement of the bolt holes 34.

can block the impurity in the pipeline through the setting of filter screen 29 for the impurity can not enter into inside valve body 1, thereby can play fine anti-gambling effect, and through the actuation of magnetic path 33 and metal frame 30, can make things convenient for filter screen 29's dismantlement, can make things convenient for filter screen 29 to change, and reserve the clearance between metal frame 30 and the joint 2, when making things convenient for the staff to change, the finger can insert wherein to scratch out filter screen 29, has improved the convenience.

The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A diaphragm-sealed valve comprising a valve body (1), characterized in that: the utility model discloses a valve body, including valve body (1), valve rod (3) are all provided with in both sides, the top fixedly connected with mounting groove (3) of valve body (1), the inside of valve body (1) is provided with valve rod (4), the top of valve rod (4) runs through mounting groove (3) and extends to the top of mounting groove (3), the top rotation of mounting groove (3) inner wall is connected with round block (5), round block (5) with valve rod (4) sliding connection, a plurality of recess (6) have been seted up to the surface of round block (5), open slot (7) have been seted up on the right side of mounting groove (3), sliding connection has plectrum (8) between the front and the back of open slot (7) inner wall, sliding connection has fixed shell (9) at the top of plectrum (8), sliding connection has sliding block (10) between the top and the bottom of fixed shell (9) inner wall, be provided with first spring (11) between the right side of sliding block (10) and the right side of fixed shell (9) inner wall, left side (12) is connected with projection (12) and extends to the left side of fixed shell (12), a second spring (13) is arranged between the bottom of the poking piece (8) and the bottom of the inner wall of the mounting groove (3); the bottom fixedly connected with valve block (15) of valve rod (4), the bottom of valve block (15) is provided with sealed pad (16), holding tank (17) have been seted up to the bottom of valve block (15), the bottom of valve body (1) inner wall is provided with flow sensor (18), the surface rotation of valve rod (4) is connected with connecting plate (19), the top fixedly connected with installing frame (20) of valve body (1), sliding connection has movable block (21) between the both sides of installing frame (20) inner wall, the top fixedly connected with connecting rod (22) of movable block (21), the top of connecting rod (22) runs through installing frame (20) and extends to the top of installing frame (20), the top of connecting rod (22) with the bottom fixedly connected with of connecting plate (19), the top fixedly connected with insulating block (23) of movable block (21), the left side swing joint of installing frame (20) inner wall has positive pole piece (24), the right side swing joint of installing frame (20) inner wall has negative pole piece (25), install between negative pole piece (25) and the third side of both sides (25) and negative pole piece (25); the accommodating groove (17) is matched with the flow sensor (18), the accommodating groove (17) can accommodate the flow sensor (18) therein, and the sealing gasket (16) is arranged around the accommodating groove (17); the top fixedly connected with controller (27) of valve body (1), the top of valve body (1) just is located the left side of controller (27) is provided with bee calling organ (28), controller (27) with bee calling organ (28) and flow sensor (18) electricity are connected.

2. The diaphragm seal valve according to claim 1, wherein the protruding block (12) is adapted to the groove (6), the protruding block (12) is clamped to the groove (6), and the front surface of the protruding block (12) is in a cambered surface structure.

3. The diaphragm seal valve according to claim 1, wherein the counterclockwise rotation direction of the valve stem (4) is a tightening direction, and the clockwise rotation direction of the valve stem (4) is a loosening direction.

4. A diaphragm seal valve according to claim 1, characterized in that a damping member (14) is arranged between the valve stem (4) and the mounting groove (3), and that an anti-slip pattern is arranged at the stem of the valve stem (4).

5. The diaphragm seal valve according to claim 1, further comprising a filter screen (29), wherein the outer surface of the filter screen (29) is fixedly connected with a metal frame (30), a plurality of positioning grooves (31) are formed in the back surface of the metal frame (30), a fixing ring (32) is fixedly connected with the inner surface of the joint (2), and a plurality of magnetic blocks (33) are fixedly connected with the front surface of the fixing ring (32).

6. The diaphragm seal valve according to claim 5, wherein the magnetic block (33) is adapted to the positioning groove (31), the diameter of the metal frame (30) is smaller than the diameter of the joint (2), and a gap is reserved between the metal frame (30) and the inner surface of the joint (2).

7. The diaphragm seal valve of claim 5, wherein the outer surface of the joint (2) is provided with a plurality of bolt holes (34).