CN214367783U

CN214367783U - Stop valve with locking function

Info

Publication number: CN214367783U
Application number: CN202120643908.XU
Authority: CN
Inventors: 姜日静
Original assignee: Qisheng Valve Co ltd
Current assignee: Qisheng Valve Co ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-08
Anticipated expiration: 2031-03-30

Abstract

The utility model belongs to the technical field of valves, in particular to a stop valve with a locking function, which provides the following proposal aiming at the problems that the prior stop valve has no locking function and poor sealing performance, which comprises a valve body, wherein the inner wall of the valve body is fixedly connected with a clapboard, the clapboard is provided with a through hole, a sealing component for improving the sealing performance is arranged in the through hole, the outer wall of the top of the valve body is fixedly connected with a box body, the inside of the box body is connected with a sliding plate in a sliding way, the bottom of the sliding plate is symmetrically and fixedly connected with two sliding rods, in the utility model, the stop valve has simple structure and locking function, can prevent other irrelevant personnel from opening the valve at will after closure, the waste of water resources is reduced to a certain extent, and the sealing is carried out by extrusion and fitting of the sealing ring and the sealing block, so that the sealing performance is improved.

Description

Stop valve with locking function

Technical Field

The utility model relates to the technical field of valves, especially, relate to a stop valve with locking function.

Background

The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of the valve rod, and the medium is prevented from flowing. The valve plays an important role in cutting off and throttling the medium in the pipeline where the valve is located, and the stop valve is used as an extremely important cut-off valve.

The existing stop valve has a complex structure, does not have the locking function, cannot prevent other irrelevant personnel from opening the valve after closure, opens the valve at will, easily causes waste of water resources, has poor sealing performance and is easy to cause liquid seepage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the function that has not the locking and the not good shortcoming of sealing performance of stop valve existence among the prior art, and the stop valve with locking function that proposes.

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

a stop valve with a locking function comprises a valve body, wherein a partition plate is fixedly connected to the inner wall of the valve body, a through hole is formed in the partition plate, a sealing assembly for improving sealing performance is arranged in the through hole, a box body is fixedly connected to the outer wall of the top of the valve body, a sliding plate is slidably connected to the interior of the box body, two sliding rods are symmetrically and fixedly connected to the bottom of the sliding plate, the bottom of each sliding rod penetrates through the outer wall of the top of the valve body, extends into the valve body and is connected with a sealing block, a linkage cavity with an upward opening is formed in the sealing block, a T-shaped block limited in the linkage cavity is arranged at the bottom of each sliding rod, a spring for resetting the sealing block downwards is arranged between each T-shaped block and the linkage cavity in a compression mode, a transmission assembly for driving the sliding plate to slide is arranged on each sliding plate, a baffle plate is fixedly connected to the inner wall of the through hole, and the top of the baffle is in contact with the bottom of the sealing block, the outer wall of one side of the box body is fixedly connected with a protection box, and a fixing component for fixing the sliding plate is arranged in the protection box.

Preferably, the sealing assembly comprises an annular groove formed in the through hole, a sealing ring is fixedly connected to the inner wall of the annular groove, and the inner wall of the sealing ring and the outer wall of the sealing block are extruded and attached to each other.

Preferably, the transmission assembly comprises a threaded rod fixedly connected with the top of the sliding plate, the top of the threaded rod penetrates through the box body, and a rotating wheel in threaded fit with the threaded rod is rotatably arranged on the outer side of the top of the box body.

Preferably, the outer wall of the rotating wheel is fixedly sleeved with a rubber ring, and the outer wall of the rubber ring is provided with anti-skid lines.

Preferably, the fixed subassembly includes that the guard box is close to the fixed sleeve pipe of one side inner wall fixed connection of box, fixed intraductal rotation of cover is connected with the rotating ring, the card hole has been seted up to one side that the sliding plate is close to the guard box, the inner wall sliding connection of rotating ring has and blocks the card axle that the hole cooperation was used, the one end of card axle runs through one side inner wall of guard box and extends to in the card hole, the one end fixedly connected with that the box was kept away from to the card axle is located the circular disk in the fixed sleeve pipe outside, the spout has been seted up on the circular disk, sliding connection has the key in the spout, the operation mouth has been seted up to one side that the box was kept away from to the guard box, the one end of key passes the operation mouth and extends to the outside of guard box, be provided with the restriction subassembly that carries out the restriction to the card axle on the fixed sleeve pipe.

Preferably, the limiting assembly comprises two L-shaped grooves formed in the fixed sleeve in a mirror image mode, and the outer wall of the clamping shaft is symmetrically and fixedly connected with two limiting rods matched with the L-shaped grooves for use.

When the valve needs to be opened, one end of a key is inserted into the protective box through the operation opening, one end of the key is aligned with one side of the sliding groove, the key slides inwards after being aligned, one side of the key is contacted with the inner wall of one side of the sliding groove, after the key is contacted, the key is rotated, the rotation of the key drives the limiting rod to rotate, when the key cannot rotate, the key is pulled outwards, the key moves to drive the clamping shaft to slide, the clamping shaft slides to separate from the clamping hole, so that the fixing of the sliding plate is released, the intercepting wheel is manually rotated after the fixing of the sliding plate is released, the sealing block is driven to move by the rotation of the rotating wheel, the sealing block is removed from sealing the through hole, at the moment, the valve is opened, when the valve needs to be closed, the sealing block is lowered to be contacted with the top of the baffle plate by rotating the intercepting wheel, at the moment, the sealing ring in the annular groove is pasted on the outer wall of the sealing block, the sealing performance of valve has been increased, and after the top of the bottom of sealed piece and baffle contacted, the key was inserted once more, inwards promoted the circular dish, made the card axle card go into the card downthehole, played the effect of locking, when unable promotion, the key for the gag lever post card is gone into L type inslot, restricts the slip of card axle, and after the restriction was accomplished, it can to slide out the key.

The utility model discloses in, this stop valve simple structure has the function of locking, dams the back, can prevent that other irrelevant personnel from opening the valve at will, has reduced the waste of water resource to a certain extent, and seals through the extrusion laminating of sealing washer and sealed piece, has improved sealing performance, and in addition, the spring plays compensation sealing performance's function, increase of service life and sealed effect.

Drawings

Fig. 1 is a schematic front sectional view of a stop valve with a locking function according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a portion a of a stop valve with a locking function according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a part B of a stop valve with a locking function according to the present invention;

fig. 4 is a schematic side view of a circular disc of a stop valve with a locking function according to the present invention;

fig. 5 is the utility model provides a main view structure schematic diagram of a key of stop valve with locking function.

In the figure: 1. a valve body; 2. a box body; 3. a sliding plate; 4. a threaded rod; 5. a rotating wheel; 6. a rubber ring; 7. a slide bar; 8. an operation port; 9. a partition plate; 10. a seal ring; 11. a chute; 12. a sealing block; 13. a through hole; 14. an annular groove; 15. a baffle plate; 16. a clamping hole; 17. clamping a shaft; 18. a protection box; 19. fixing the sleeve; 20. a rotating ring; 21. an L-shaped groove; 22. a limiting rod; 23. a circular disc; 24. a key; 25. a linkage cavity; 26. a T-shaped block; 27. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

Referring to fig. 1-5, a stop valve with a locking function comprises a valve body 1, a partition plate 9 is fixedly connected to the inner wall of the valve body 1, a through hole 13 is formed in the partition plate 9, a sealing assembly for improving sealing performance is arranged in the through hole 13, a box body 2 is fixedly connected to the outer wall of the top of the valve body 1, a sliding plate 3 is slidably connected to the inner portion of the box body 2, sliding rods 7 are symmetrically and fixedly connected to the bottom of the sliding plate 3, the bottom of the sliding rod 7 penetrates through the outer wall of the top of the valve body 1 and extends into the valve body 1 and is connected with a sealing block 12, a linkage cavity 25 with an upward opening is arranged in the sealing block 12, a T-shaped block 26 limited in the linkage cavity is arranged at the bottom of the sliding rod 7, a spring 27 for resetting the sealing block 12 downwards is arranged between the T-shaped block 26 and the linkage cavity 25 in a compression manner, and a transmission assembly for driving the sliding plate 3 to slide, the inner wall of the through hole 13 is fixedly connected with a baffle plate 15, the top of the baffle plate 15 is contacted with the bottom of the sealing block 12, the outer wall of one side of the box body 2 is fixedly connected with a protection box 18, and a fixing component for fixing the sliding plate 3 is arranged in the protection box 18.

Example two

The embodiment is improved on the basis of the first embodiment: the sealing assembly comprises an annular groove 14 formed in the through hole 13, a sealing ring 10 is fixedly connected to the inner wall of the annular groove 14, the inner wall of the sealing ring 10 and the outer wall of a sealing block 12 are extruded and attached to each other, the transmission assembly comprises a threaded rod 4 fixedly connected to the top of the sliding plate 3, the box body 2 is penetrated through the top of the threaded rod 4, a rotating wheel 5 in threaded fit with the threaded rod 4 is rotatably arranged on the outer side of the top of the box body 2, a rubber ring 6 is fixedly sleeved on the outer wall of the rotating wheel 5, and anti-slip patterns are arranged on the outer wall of the rubber ring 6.

EXAMPLE III

The embodiment is improved on the basis of the first embodiment: the fixing component comprises a fixing sleeve 19 fixedly connected with the inner wall of one side of the protection box 18 close to the box body 2, a rotating ring 20 is rotationally connected in the fixing sleeve 19, a clamping hole 16 is formed in one side of the sliding plate 3 close to the protection box 18, a clamping shaft 17 matched with the clamping hole 16 for use is connected to the inner wall of the rotating ring 20 in a sliding manner, one end of the clamping shaft 17 penetrates through the inner wall of one side of the protection box 18 and extends into the clamping hole 16, a circular disc 23 positioned on the outer side of the fixing sleeve 19 is fixedly connected to one end, far away from the box body 2, of the clamping shaft 17, a sliding groove 11 is formed in the circular disc 23, a key 24 is slidably connected in the sliding groove 11, an operation opening 8 is formed in one side, far away from the box body 2, one end of the key 24 penetrates through the operation opening 8 and extends to the outer side of the protection box 18, a limiting component for limiting the clamping shaft 17 is arranged on the fixing sleeve 19, the limiting component comprises two L-shaped grooves 21 formed in the mirror image on the fixing sleeve 19, two limiting rods 22 matched with the L-shaped grooves 21 for use are symmetrically and fixedly connected to the outer wall of the clamping shaft 17.

The working principle is as follows: when the valve needs to be opened, one end of a key 24 is inserted into the protective box 18 through the operation opening 8, one end of the key 24 is aligned with one side of the sliding chute 11, the key 24 slides inwards after being aligned, one side of the key 24 is in contact with the inner wall of one side of the sliding chute 11, then the key 24 is rotated, the rotation of the key 24 drives the circular disc 23 to rotate, the rotation of the circular disc 23 drives the clamping shaft 17 to rotate, the rotation of the clamping shaft 17 drives the limiting rod 22 to rotate, when the key 24 cannot rotate, the key 24 is pulled outwards, the movement of the key 24 drives the clamping shaft 17 to slide, the sliding of the clamping shaft 17 enables the clamping shaft 17 to be separated from the clamping hole 16, so that the fixing of the sliding plate 3 is released, after the fixing of the sliding plate 3 is released, the rotating wheel 5 is manually rotated, the rotating wheel 5 drives the threaded rod 4 to lift, the lifting of the threaded rod 4 drives the sliding plate 3 to slide, the sliding plate 3 drives the sliding rod 7 to move, the sliding rod 7 moves to drive the sealing block 12 to move, the sealing block 12 moves to remove the sealing of the through hole 13, the cut-off valve is opened at the moment, when the cut-off valve needs to be closed, the sealing block 12 is lowered to the bottom to be contacted with the top of the baffle 15 by rotating the rotating wheel 5, the sealing ring 10 in the annular groove 14 is attached to the outer wall of the sealing block 12 at the moment, the sealing performance of the valve is improved, after the bottom of the sealing block 12 is contacted with the top of the baffle 15, the key 24 is inserted again, the circular disc 23 is pushed inwards, the clamping shaft 17 is clamped into the clamping hole 16 to play a locking role, when the pushing cannot be carried out, the key 24 is rotated, the limiting rod 22 is clamped into the L-shaped groove 21 to limit the sliding of the clamping shaft 17, and after the limiting is completed, the key 24 is slid out.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A stop valve with a locking function comprises a valve body (1) and is characterized in that a partition plate (9) is fixedly connected to the inner wall of the valve body (1), a through hole (13) is formed in the partition plate (9), a sealing assembly for improving sealing performance is arranged in the through hole (13), a box body (2) is fixedly connected to the outer wall of the top of the valve body (1), a sliding plate (3) is slidably connected to the inside of the box body (2), sliding rods (7) are symmetrically and fixedly connected to the bottom of the sliding plate (3), the bottom of each sliding rod (7) penetrates through the outer wall of the top of the valve body (1) and extends into the valve body (1) and is connected with a sealing block (12), a linkage cavity (25) with an opening facing upwards is formed in the sealing block (12), and a T-shaped block (26) limited to the linkage cavity is arranged at the bottom of each sliding rod (7), the sealing device is characterized in that a spring (27) which resets the sealing block (12) downwards is arranged between the T-shaped block (26) and the linkage cavity (25) in a compression mode, a transmission component which drives the sliding plate (3) to slide is arranged on the sliding plate (3), a baffle (15) is fixedly connected to the inner wall of the through hole (13), the top of the baffle (15) is in contact with the bottom of the sealing block (12), a protection box (18) is fixedly connected to the outer wall of one side of the box body (2), and a fixing component which fixes the sliding plate (3) is arranged in the protection box (18).

2. The stop valve with the locking function according to claim 1, characterized in that the sealing component comprises an annular groove (14) formed in the through hole (13), a sealing ring (10) is fixedly connected to the inner wall of the annular groove (14), and the inner wall of the sealing ring (10) is in pressing fit with the outer wall of the sealing block (12).

3. The stop valve with the locking function according to claim 1, characterized in that the transmission component comprises a threaded rod (4) fixedly connected with the top of the sliding plate (3), the top of the threaded rod (4) penetrates through the box body (2), and a rotating wheel (5) in threaded fit with the threaded rod (4) is rotatably arranged on the outer side of the top of the box body (2).

4. The stop valve with the locking function as claimed in claim 3, characterized in that the outer wall of the rotating wheel (5) is fixedly sleeved with a rubber ring (6), and the outer wall of the rubber ring (6) is provided with anti-skid threads.

5. The stop valve with the locking function according to claim 1, wherein the fixing assembly comprises a fixing sleeve (19) fixedly connected to an inner wall of one side of the protection box (18) close to the box body (2), a rotating ring (20) is rotatably connected to the fixing sleeve (19), a locking hole (16) is formed in one side of the sliding plate (3) close to the protection box (18), a locking shaft (17) matched with the locking hole (16) is slidably connected to an inner wall of the rotating ring (20), one end of the locking shaft (17) penetrates through the inner wall of one side of the protection box (18) and extends into the locking hole (16), a circular disc (23) located outside the fixing sleeve (19) is fixedly connected to one end of the locking shaft (17) far away from the box body (2), a sliding groove (11) is formed in the circular disc (23), and a key (24) is slidably connected to the sliding groove (11), operation mouth (8) have been seted up to the one side that box (2) were kept away from in guard box (18), the one end of key (24) is passed operation mouth (8) and is extended to the outside of guard box (18), be provided with the restriction subassembly that carries out the restriction to card axle (17) on fixed sleeve (19).

6. The stop valve with the locking function according to claim 5, wherein the limiting component comprises two L-shaped grooves (21) formed in the fixed sleeve (19) in a mirror image mode, and two limiting rods (22) matched with the L-shaped grooves (21) and used are symmetrically and fixedly connected to the outer wall of the clamping shaft (17).