CN212273097U - Multifunctional prevention and control locking gate valve - Google Patents

Abstract

The utility model provides a multi-functional prevention and control locking gate valve belongs to valve manufacturing technical field. The gate valve solves the problems that the existing gate valve cannot filter and balance the pressure in the gate valve, the gate plate is easy to deform, and the service life is short. This multi-functional prevention and control locking gate valve includes the brake valve body, brake valve cap, flashboard, presses cap, lead screw and hand wheel, and the entrance point of brake valve body can be dismantled and is connected with the pressure release cover, is provided with the pressure regulating device who is used for balanced brake valve body's entrance point internal pressure in the pressure release cover, and the pressure release is sheathe in and can be dismantled and be connected with the filter sleeve, is provided with filtration in the filter sleeve, and the filter is sheathe in and can be dismantled and be connected with the adapter. The utility model discloses can fully filter, can prevent effectively that irrelevant personnel from operating the gate valve, can balance the gate valve internal pressure, be difficult for making flashboard deformation, long service life.

Description

Multifunctional prevention and control locking gate valve

Technical Field

The utility model belongs to the technical field of the valve is made, a multi-functional prevention and control locking gate valve is related to.

Background

The opening and closing part of the gate valve is a gate plate, the movement direction of the gate plate is vertical to the fluid direction, and the gate plate is frequently washed by fluid media in the closing and opening states, and particularly quickly worn under the washing and cavitation of high-temperature fluid media.

The existing gate valve is not provided with a pressure relief device generally, when a fluid medium in the gate valve is closed and opened, the gate plate surface which is caused by overlarge pressure is deformed or corroded, so that the valve can not be used, and the non-professional factory for repairing the valves cannot work, thereby causing great waste. In addition, a filtering structure is not arranged in a valve body of the existing gate valve, water resources in a pipeline often contain various impurities, the impurities can affect the normal supply of the water resources, and when the impurities are in the water resources, the impurities need to be discharged along with the water resources, so that the waste of the water resources is caused; the inlet end of the existing gate valve is generally connected with a pipeline through a connecting sleeve, but the inlet end of the gate valve is poor in sealing performance between the pipeline and the inlet end of the existing gate valve, so that connection leakage can be caused, the structural stability is poor, and the service life is short.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, can filter, can balance the gate valve internal pressure, be difficult for making the flashboard deformation, the leakproofness is good, connects stable multi-functional prevention and control locking gate valve.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a multi-functional prevention and control locking gate valve, includes gate valve body, gate valve cap, flashboard, pressure cap, lead screw and hand wheel, gate valve body, gate valve cap adaptation connection form the valve pocket, the flashboard be located the valve pocket between gate valve body, the gate valve cap, the lead screw pass in the valve pocket that the gate valve cap extends to between gate valve body, the gate valve cap with flashboard screwed connection, the pressure cap connect between gate valve cap and lead screw and make gate valve cap and lead screw seal cooperation, the outer end be assembled between hand wheel and lead screw be connected, be provided with the magnetic control structure between this hand wheel and the lead screw, a serial communication port, the entrance point of gate valve body can dismantle and be connected with the pressure release cover, the pressure release cover in be provided with the pressure adjustment device who is used for balancing gate valve body's entrance point internal pressure, the pressure release cover in be connected with and can dismantle the, the filter sleeve is detachably connected with a connecting sleeve, and a sealing structure for connection is arranged in the connecting sleeve.

This multi-functional prevention and control locking gate valve mainly sets up pressure regulating device on the pressure release cover of the entrance point of the floodgate body, can balance the gate valve internal pressure through pressure regulating device, is difficult for making the flashboard deformation, sets up filtration on filtering the cover, can effectively carry out the abundant filtration of quality of water through filtration, conveniently clears up and filters impurity, convenient to use sets up seal structure in the adapter sleeve, can connect sealedly through seal structure, stable in structure, long service life.

In foretell multi-functional prevention and control locking gate valve, pressure adjusting device include the pressure adjustment cylinder body, the pressure adjustment cylinder body in be provided with the piston, piston and pressure adjustment cylinder body sliding seal cooperation, this piston makes the pressure adjustment cylinder body in the pressure adjustment cylinder body form and adjusts chamber and pressure release chamber, the pressure release sheathe in and be provided with the switching cover that communicates with the pressure release cover, the pressure adjustment cylinder body can dismantle to connect on the switching cover, this pressure adjustment cylinder body makes through the switching cover and adjusts chamber and pressure release cover intercommunication. When the liquid pressure in the pressure relief cover increases, the liquid in the pressure relief cover flows to the regulation cavity in the pressure regulation cylinder body through the adapter sleeve, acts on the piston to enable the piston to shift to the pressure relief cavity to balance the liquid pressure in the pressure relief cover, and the purpose of setting up like this is that the liquid pressure in the pressure relief cover can be balanced fast.

In the above multifunctional prevention and control locking gate valve, a compression spring is arranged in the pressure relief cavity of the pressure regulating cylinder body, the compression spring acts on the piston elastically, and the pressure regulating cylinder body is further provided with a vent valve communicated with the pressure relief cavity. The compression spring is used for enabling the piston to reset in the pressure adjusting cylinder body, the vent valve is used for exchanging air pressure in the pressure relief cavity with air pressure outside, when the air pressure in the pressure relief cavity is increased, the vent valve is opened from inside to outside, and the air pressure in the pressure relief cavity flows to the outside; when the air pressure in the pressure relief cavity is reduced, the vent valve is opened from outside to inside, and the outside air pressure flows into the pressure relief cavity.

In the above multifunctional prevention and control locking gate valve, the outer wall of the piston is embedded with a sealing ring, and the piston is in sliding sealing fit with the pressure adjusting cylinder body through the sealing ring. The purpose of this is to ensure the effectiveness of the sliding seal of the piston and the pressure-regulating cylinder.

In the above multifunctional prevention and control locking gate valve, the filtering structure includes a filtering inner sleeve, one end of the filtering inner sleeve is open, the other end of the filtering inner sleeve is provided with a filtering net, the filtering sleeve is internally provided with an axial assembling position, the size, shape and axial assembling position of the filtering inner sleeve are matched, the filtering inner sleeve is axially arranged in the axial assembling position in the filtering sleeve in a penetrating manner, and a limiting structure capable of preventing the filtering inner sleeve from axially moving in the filtering sleeve is further arranged between the filtering inner sleeve and the filtering sleeve. The purpose of setting up like this is when filtering the filter screen filtration granule impurity of endotheca, and the granule impurity that enables to filter out is in filtering the endotheca, makes things convenient for the clearance of granule impurity.

In the above multifunctional prevention and control locking gate valve, the limiting structure comprises a limiting ring, an external thread is arranged on the outer wall of the limiting ring, an axial expanding extension part is arranged in the filtering sleeve, an internal thread is arranged on the inner wall of the axial expanding extension part, the external thread of the limiting ring is spirally connected to the internal thread of the axial expanding extension part, and when the limiting ring and the filtering sleeve are axially and fixedly connected, the filtering inner sleeve and the limiting ring are axially abutted and matched to prevent the filtering inner sleeve from axially moving in the filtering sleeve. The purpose that sets up like this can effectively avoid filtering the endotheca and lead to filtering the inefficacy in filtering the cover internal float, stable in structure, long service life.

In the above multifunctional prevention and control locking gate valve, the sealing structure comprises a sealing ring, a radial expanding embedding position is arranged on the inner wall of the connecting sleeve, the sealing ring is embedded in the radial expanding embedding position, and a conical surface inclined from outside to inside is arranged on the inner wall of the sealing ring. When the connecting sleeve and the pipeline are axially assembled, the pipeline is axially abutted against the conical surface of the sealing ring, the sealing ring can be gradually tensioned in the radial expanding embedding position to form sealing, the sealing effect is good, and the structure is stable.

In the above-mentioned multi-functional prevention and control locking gate valve, the magnetic control structure include the magnetic column one that sets up on the inner wall of hand wheel and the magnetic column two that sets up in the outer end of lead screw, be provided with the locked groove on the inner wall of hand wheel opposite to magnetic column one, when the outer end assembly connection of hand wheel and lead screw, this magnetic column one, magnetic column two are made the magnetic column two shift to the locked groove through the principle that like magnetic pole repels each other, this lead screw and hand wheel circumference locking, lead screw and hand wheel between be provided with the promotion structure that enables magnetic column two to reset. The purpose of setting up like this prevents that irrelevant personnel from operating the ball valve, prevents to open by mistake, convenient to use.

In foretell multi-functional prevention and control locking gate valve, the pushing structure include push rod and push pedal, push rod horizontal slip wear to locate on the hand wheel, the push pedal set up in the locked groove, this push pedal and locked groove sliding fit, the one end of push rod be located outside the hand wheel, the other end of push rod wear to locate in the locked groove and support with the push pedal and lean on the cooperation, when the magnetism post displacement to locked groove in, this magnetism post two supports with the push pedal and supports and lean on the cooperation, the magnetism post passes through push pedal, push rod promotion and resets. The purpose of setting up like this is that make things convenient for the axial of hand wheel and lead screw to break away from convenient to use.

In foretell multi-functional prevention and control locking gate valve, the lead screw on the cover be equipped with the spacer sleeve, the spacer sleeve on be provided with the through hole, when the outer end assembly connection of hand wheel and lead screw, the through hole of this spacer sleeve is relative with the locked groove of hand wheel, the lead screw on be equipped with the sliding tray that the diameter is greater than the locked groove, magnetic column two be located the sliding tray, the bottom of this magnetic column two is provided with turns over the edge, magnetic column two on the cover be equipped with reset spring, this reset spring's one end elasticity supports and leans on the spacer sleeve, this reset spring's one end elasticity supports and leans on turning over the edge of magnetic column two, when the outer end of hand wheel and lead screw breaks away from, this reset spring is used for magnetic column two to reset in the. The purpose of the arrangement is that the second magnetic column is hidden in the sliding groove of the screw rod, the structure is stable, and the second magnetic column is prevented from being separated from the screw rod.

Compared with the prior art, this multi-functional prevention and control locking gate valve's advantage does: can prevent effectively that irrelevant personnel from operating the gate valve, can balance the gate valve internal pressure, be difficult for making the flashboard deformation, the leakproofness is good, can effectively carry out the abundant filtration of quality of water in the gate valve body, and convenient to use, it is stable to connect seal structure, long service life to clear up filtering impurity.

Drawings

Fig. 1 is a schematic sectional structure view of the multifunctional prevention and control locking gate valve.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B in fig. 1.

In the figure, 1, a brake valve body; 2. a gate cap; 3. a shutter plate; 4. pressing the cap; 5. a screw rod; 6. a hand wheel; 7. a pressure relief sleeve; 8. a filter sleeve; 9. connecting sleeves; 10. a pressure regulating cylinder; 11. a piston; 12. a transfer sleeve; 13. a compression spring; 14. a vent valve; 15. a seal ring; 16. filtering the inner sleeve; 17. a filter screen; 18. a limiting ring; 19. axially expanding the extension; 20. a seal ring; 21. a conical surface; 22. a first magnetic column; 23. a second magnetic column; 24. locking the groove; 25. a push rod; 26. pushing the plate; 27. a spacer sleeve; 28. a sliding groove; 29. turning over edges; 30. a return spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2 and fig. 3, this multi-functional prevention and control locking gate valve mainly comprises gate valve body 1, gate valve cap 2, flashboard 3, press cap 4, lead screw 5 and hand wheel 6, gate valve body 1, gate valve cap 2 adapter coupling forms the valve pocket, flashboard 3 is located gate valve body 1, the valve pocket between gate valve cap 2, lead screw 5 passes gate valve cap 2 and extends to gate valve body 1, with 3 screwed connection of flashboard in the valve pocket between gate valve cap 2, press cap 4 connects between gate valve cap 2 and lead screw 5 and make gate valve cap 2 and lead screw 5 seal-tightly cooperate, hand wheel 6 and the outer end assembly connection of lead screw 5, be provided with the magnetic control structure between this hand wheel 6 and the lead screw 5, when actually making, the concrete implementation mode of this magnetic control structure is: a first magnetic column 22 arranged on the inner wall of the hand wheel 6 and a second magnetic column 23 arranged at the outer end of the screw rod 5, wherein a locking groove 24 is arranged on the inner wall of the hand wheel 6 opposite to the first magnetic column 22, when the hand wheel 6 is assembled and connected with the outer end of the screw rod 5, the first magnetic column 22 and the second magnetic column 23 enable the second magnetic column 23 to be displaced into the locking groove 24 by the principle that like magnetic poles repel each other, the screw rod 5 and the hand wheel 6 are locked in the circumferential direction, and a pushing structure capable of enabling the second magnetic column 23 to be reset is arranged between the screw rod 5 and the hand wheel 6; in the actual design, the specific implementation structure of the pushing structure is as follows: mainly constitute by push rod 25 and push pedal 26, push rod 25 horizontal slip wears to locate on hand wheel 6, push pedal 26 sets up in locked groove 24, this push pedal 26 and locked groove 24 sliding fit, the one end of push rod 25 is located outside hand wheel 6, the other end of push rod 25 wears to locate in locked groove 24 and supports with push pedal 26 and lean on the cooperation, when two 23 displacements of magnetism post are to locked groove 24 in, two 23 and the push pedal 26 of this magnetism post support and lean on the cooperation, the magnetism post passes through push pedal 26, push rod 25 promotes to reset.

During actual manufacturing, a spacer sleeve 27 is sleeved on the screw rod 5, a through hole is formed in the spacer sleeve 27, when the hand wheel 6 is assembled and connected with the outer end of the screw rod 5, the through hole of the spacer sleeve 27 is opposite to the lock groove 24 of the hand wheel 6, a sliding groove 28 with the diameter larger than that of the lock groove 24 is formed in the screw rod 5, the second magnetic column 23 is located in the sliding groove 28, a turning edge 29 is arranged at the bottom of the second magnetic column 23, a return spring 30 is sleeved on the second magnetic column 23, one end of the return spring 30 elastically abuts against the spacer sleeve 27, one end of the return spring 30 elastically abuts against the turning edge 29 of the second magnetic column 23, and when the hand wheel 6 is separated from the outer end of the screw rod 5, the return spring 30 is used for returning the second magnetic column 23 in the sliding.

The entrance point of the brake valve body 1 can be dismantled and be connected with the pressure release cover 7, the pressure release cover 7 in be provided with the pressure regulating device who is used for balancing the entrance point internal pressure of the brake valve body 1, when actual manufacturing, this pressure regulating device's embodiment is: the pressure regulating cylinder mainly comprises a pressure regulating cylinder body 10, a piston 11 is arranged in the pressure regulating cylinder body 10, the piston 11 is in sliding seal fit with the pressure regulating cylinder body 10, the piston 11 enables an adjusting cavity and a pressure relief cavity to be formed in the pressure regulating cylinder body 10, an adapter sleeve 12 communicated with the pressure relief sleeve 7 is arranged on the pressure relief sleeve 7, the pressure regulating cylinder body 10 is detachably connected to the adapter sleeve 12, and the pressure regulating cylinder body 10 enables the adjusting cavity to be communicated with the pressure relief sleeve 7 through the adapter sleeve 12; a compression spring 13 is arranged in a pressure relief cavity of the pressure regulating cylinder body 10, the compression spring 13 elastically acts on the piston 11, and a vent valve 14 communicated with the pressure relief cavity is also arranged on the pressure regulating cylinder body 10; and a sealing ring 15 is embedded on the outer wall of the piston 11, and the piston 11 is in sliding sealing fit with the pressure adjusting cylinder 10 through the sealing ring 15.

Pressure release is connected with filter sleeve 8 on 7 can dismantle, filter sleeve 8 in be provided with filtration, when actual manufacturing, this filtration's embodiment is: the filter mainly comprises a filter inner sleeve 16, wherein one end of the filter inner sleeve 16 is open, the other end of the filter inner sleeve 16 is provided with a filter screen 17, an axial assembly position is arranged in the filter sleeve 8, the size and the shape of the filter inner sleeve 16 are matched with the axial assembly position, the filter inner sleeve 16 is axially arranged in the axial assembly position in the filter sleeve 8 in a penetrating way, and a limit structure capable of preventing the filter inner sleeve 16 from axially moving in the filter sleeve 8 is also arranged between the filter inner sleeve 16 and the filter sleeve 8; specifically, the specific implementation structure of the limiting structure is as follows: the filter sleeve mainly comprises a limiting ring 18, wherein an external thread is arranged on the outer wall of the limiting ring 18, an axial expanding extension part 19 is arranged in the filter sleeve 8, an internal thread is arranged on the inner wall of the axial expanding extension part 19, the external thread of the limiting ring 18 is spirally connected to the internal thread of the axial expanding extension part 19, and when the limiting ring 18 is axially and fixedly connected with the filter sleeve 8, the filter inner sleeve 16 and the limiting ring 18 are axially abutted and matched to prevent the filter inner sleeve 16 from axially moving in the filter sleeve 8.

The filter sleeve 8 is detachably connected with a connecting sleeve 9, and a sealing structure for connection is arranged in the connecting sleeve 9; in actual manufacturing, the sealing structure is specifically implemented as follows: the connecting sleeve mainly comprises a sealing ring 20, wherein a radial expanding embedding position is arranged on the inner wall of the connecting sleeve 9, the sealing ring 20 is embedded in the radial expanding embedding position, and a conical surface 21 inclined from outside to inside is arranged on the inner wall of the sealing ring 20.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a multi-functional prevention and control locking gate valve, includes gate valve body (1), gate valve cap (2), flashboard (3), presses cap (4), lead screw (5) and hand wheel (6), gate valve body (1), gate valve cap (2) adaptation connection form the valve pocket, flashboard (3) be located the valve pocket between gate valve body (1), gate valve cap (2), lead screw (5) pass gate valve cap (2) and extend to gate valve body (1), gate valve cap (2) between the valve pocket and flashboard (3) screwed connection, press cap (4) connect between gate valve cap (2) and lead screw (5) and make gate valve cap (2) and lead screw (5) seal fit, hand wheel (6) and the outer end assembly connection of lead screw (5), be provided with the magnetic control structure between this hand wheel (6) and lead screw (5), its characterized in that can dismantle of gate valve body (1) be connected with and let out and press cover (7), the pressure release cover (7) in be provided with the pressure regulating device who is used for balancing the entrance point internal pressure of floodgate valve body (1), pressure release cover (7) on can dismantle and be connected with filter sleeve (8), filter sleeve (8) in be provided with filtration, filter sleeve (8) on can dismantle and be connected with adapter sleeve (9), adapter sleeve (9) in be provided with the seal structure who is used for connecting.

2. The multifunctional prevention and control locking gate valve according to claim 1, characterized in that the pressure adjusting device comprises a pressure adjusting cylinder (10), a piston (11) is arranged in the pressure adjusting cylinder (10), the piston (11) and the pressure adjusting cylinder (10) are in sliding sealing fit, the piston (11) enables the pressure adjusting cylinder (10) to form an adjusting cavity and a pressure relief cavity in the pressure adjusting cylinder (10), the pressure relief sleeve (7) is provided with an adapter sleeve (12) communicated with the pressure relief sleeve (7), the pressure adjusting cylinder (10) is detachably connected to the adapter sleeve (12), and the pressure adjusting cylinder (10) enables the adjusting cavity to be communicated with the pressure relief sleeve (7) through the adapter sleeve (12).

3. A multi-functional prevention and control locking gate valve according to claim 2, characterized in that a compression spring (13) is provided in the pressure release chamber of the pressure regulating cylinder (10), the compression spring (13) elastically acts on the piston (11), and a vent valve (14) communicated with the pressure release chamber is further provided on the pressure regulating cylinder (10).

4. A multi-functional prevention and control locking gate valve according to claim 3, characterized in that, the outer wall of the piston (11) is embedded with a sealing ring (15), and the piston (11) is in sliding sealing fit with the pressure adjusting cylinder (10) through the sealing ring (15).

5. The multifunctional prevention and control locking gate valve as claimed in claim 4, characterized in that the filtering structure comprises an inner filtering sleeve (16), one end of the inner filtering sleeve (16) is open, the other end of the inner filtering sleeve (16) is provided with a filtering net (17), the inner filtering sleeve (8) is provided with an axial assembling position, the inner filtering sleeve (16) is matched with the size, the shape and the axial assembling position, the inner filtering sleeve (16) is axially arranged in the axial assembling position in the filtering sleeve (8), and a limiting structure capable of preventing the inner filtering sleeve (16) from axially moving in the filtering sleeve (8) is arranged between the inner filtering sleeve (16) and the filtering sleeve (8).

6. The multifunctional prevention and control locking gate valve as claimed in claim 5, characterized in that the limiting structure comprises a limiting ring (18), the outer wall of the limiting ring (18) is provided with external threads, the filter sleeve (8) is internally provided with an axial expanding extension part (19), the inner wall of the axial expanding extension part (19) is provided with internal threads, the external threads of the limiting ring (18) are spirally connected to the internal threads of the axial expanding extension part (19), and when the limiting ring (18) and the filter sleeve (8) are axially fixedly connected, the filter inner sleeve (16) and the limiting ring (18) are axially abutted and matched to prevent the filter inner sleeve (16) from axially moving in the filter sleeve (8).

7. The multifunctional prevention and control locking gate valve according to claim 6, characterized in that the sealing structure comprises a sealing ring (20), the inner wall of the connecting sleeve (9) is provided with a radial expanding embedding position, the sealing ring (20) is embedded in the radial expanding embedding position, and the inner wall of the sealing ring (20) is provided with a conical surface (21) inclined from outside to inside.

8. The multifunctional prevention and control locking gate valve according to claim 7, characterized in that the magnetic control structure comprises a first magnetic column (22) arranged on the inner wall of the hand wheel (6) and a second magnetic column (23) arranged at the outer end of the screw rod (5), a locking groove (24) is arranged on the inner wall of the hand wheel (6) opposite to the first magnetic column (22), when the hand wheel (6) is assembled and connected with the outer end of the screw rod (5), the first magnetic column (22) and the second magnetic column (23) enable the second magnetic column (23) to move into the locking groove (24) by the principle that like magnetic poles repel each other, the screw rod (5) and the hand wheel (6) are locked circumferentially, and a pushing structure capable of enabling the second magnetic column (23) to reset is arranged between the screw rod (5) and the hand wheel (6).

9. The gate valve of claim 8, wherein the pushing structure comprises a push rod (25) and a push plate (26), the push rod (25) horizontally slides through the hand wheel (6), the push plate (26) is arranged in the lock groove (24), the push plate (26) is in sliding fit with the lock groove (24), one end of the push rod (25) is located outside the hand wheel (6), the other end of the push rod (25) is arranged in the lock groove (24) in a penetrating manner and is in abutting fit with the push plate (26), when the second magnetic column (23) moves into the lock groove (24), the second magnetic column (23) and the push plate (26) are in abutting fit, and the magnetic column is pushed to reset through the push plate (26) and the push rod (25).

10. The multifunctional prevention and control locking gate valve according to claim 9, characterized in that a spacer sleeve (27) is sleeved on the screw rod (5), a through hole is formed in the spacer sleeve (27), when the hand wheel (6) is assembled and connected with the outer end of the screw rod (5), the through hole of the spacer sleeve (27) is opposite to the lock groove (24) of the hand wheel (6), a sliding groove (28) with a diameter larger than that of the lock groove (24) is formed in the screw rod (5), the second magnetic column (23) is positioned in the sliding groove (28), a turning edge (29) is formed at the bottom of the second magnetic column (23), a return spring (30) is sleeved on the second magnetic column (23), one end of the return spring (30) is elastically abutted against the spacer sleeve (27), one end of the return spring (30) is elastically abutted against the turning edge (29) of the second magnetic column (23), and when the hand wheel (6) is disengaged from the outer end of the screw rod (5), the return spring (30) is used for returning the second magnetic column (23) in the sliding groove (28).

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