CN211344079U - Manual gate valve with soft seal flange - Google Patents

Abstract

The utility model discloses a manual formula gate valve of flange soft seal, its structure includes valve body, connecting plate, connecting hole, bed course, changes dense subassembly, drive arrangement and prevents long-pending device, the utility model discloses have following beneficial effect, through set up drive arrangement between valve body top and the dense subassembly of commentaries on classics, protruding cushion block is put into the activity of mouth inner wall left and right sides both ends department, for providing the seal when this gate valve is closed, and the gomphosis strip is in gomphosis inslot inner wall department activity, and is pasted tightly by the layer of compressing tightly, provides the seal when this gate valve is opened, has reached through setting up mutual laminating part with the effect of the seal after the switching operation of improvement; and set up between valve body inner wall bottom and drive arrangement bottom and prevent long-pending device, set up through adopting the arc hunch seat, can prevent greatly that the particulate matter in the middle of the hydrops from staying in the position of the arc hunch seat top terminal surface of notch below, reached and adopted concentrated scattered thing part to lead to sealed inconvenient beneficial effect of operation with preventing long-pending thing.

Description

Manual gate valve with soft seal flange

Technical Field

The utility model belongs to the technical field of the gate valve, in particular to manual formula gate valve of flange soft seal.

Background

The gate valve is a flashboard of an opening and closing part, the movement direction of the flashboard is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the gate valve is sealed by the contact of a valve seat and the flashboard, and metal materials are usually welded on a sealing surface in a surfacing mode to improve the wear resistance;

when the gate valve is closed, the sealing surface can be sealed only by medium pressure, namely, the sealing surface of the gate plate is pressed to the valve seat on the other side only by the medium pressure to ensure the sealing of the sealing surface, namely, the gate valve is self-sealed, most of the gate valves are forcedly sealed, namely, when the gate valve is closed, the gate plate is forced to be pressed to the valve seat by external force to ensure the sealing property of the sealing surface;

however, the novel gate valve in the prior art has poor sealing effect after opening and closing operations, and the shape height of the gate-off position is not reasonable enough, so that the operation of sealing is inconvenient due to the accumulated objects.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, a manual gate valve with a flange soft seal is provided, so that the problems that the sealing effect is poor after the gate valve is opened and closed, the shape and the height of a gate breaking position are not reasonable enough, and the accumulated objects cause inconvenient sealing operation are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a manual gate valve with flange soft seal, which comprises a valve body, a connecting plate, a connecting hole, a cushion layer, a sealing component, a driving device and an anti-accumulation device, wherein the left end and the right end of the valve body are respectively welded with the connecting plate, the periphery of the left end and the right end of the connecting plate is provided with the connecting hole, the outer side of the inner wall of the connecting plate is fixedly connected with the cushion layer, the middle part of the top end of the valve body is fixedly connected with the sealing component, the middle part of the inner wall of the sealing component is movably connected with the driving device, the driving device runs through the middle part of the top end of the valve body and is movably connected with the driving device, the bottom end of the inner wall of the valve body is provided with the anti-accumulation device, the driving device comprises a hand wheel, a valve rod, a threaded rod, a flash, valve rod bottom and threaded rod welding, the threaded rod runs through flashboard top middle part to threaded rod and flashboard threaded connection, both ends upper portion and protruding cushion fixed connection about the flashboard, valve body top middle part is provided with puts into the mouth, put into the mouth bottom and control two parts and do not be provided with the gomphosis groove, gomphosis inslot wall and gomphosis strip surface upper portion swing joint, gomphosis strip top bonds with the layer that compresses tightly through waterproof glue, the flashboard bottom is provided with prevents long-pending device, the valve rod runs through and changes dense subassembly top bottom both ends middle part to change dense subassembly and valve rod swing joint.

Further, it includes arc hunch seat and notch to prevent long-pending device, arc hunch seat top middle part and notch inner wall swing joint, the valve rod bottom is provided with the notch, valve body inner wall bottom is provided with the arc hunch seat.

Further, it includes frame seat, lower plate, packing ring, punch holder, mounting, boss, mechanical seal and bearing to change dense subassembly, frame seat top periphery and lower plate welding, be provided with the packing ring between lower plate top and the punch holder bottom, the mounting runs through both ends and the lower plate top at the bottom of punch holder and packing ring simultaneously to the punch holder passes through mounting and lower plate fixed connection, punch holder top middle part and boss welding, the boss inner wall is provided with mechanical seal and bearing, mechanical seal sets up in the bearing top, the valve rod runs through boss top both ends middle part simultaneously to valve rod and boss swing joint, valve body top middle part and boss fixed connection.

Furthermore, the inner wall of the embedding groove and the upper part of the outer surface of the embedding strip are mutually embedded.

Further, a rubber layer is arranged on the outer surface of the hand wheel, and the outer surface of the rubber layer is rough.

Furthermore, the middle section of the top end of the arc-shaped arch support is embedded with the inner wall of the notch.

Furthermore, the bottom end of the notch is provided with a jointing layer.

Further, the type of the mechanical seal is APL-322.

Furthermore, the cushion layer, the gasket, the pressing layer and the attaching layer are all made of rubber.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) the not good problem of leakproofness effect after this gate valve carries out the switching operation, through set up drive arrangement between valve body top and the secret subassembly of commentaries on classics, grasp the hand wheel and apply the turning force through the hand, can drive valve rod and threaded rod and rotate, and the threaded rod runs through in flashboard top middle part department rotation can drive the flashboard and carry out the switching operation to the valve body about putting into mouthful department, and protruding cushion both ends department activity about putting into the mouth inner wall, provide the leakproofness when closing for this gate valve, and the gomphosis strip is in gomphosis inslot wall department activity, and paste tightly by the compact bed, provide the leakproofness when opening this gate valve, reached through setting up the effect of leakproofness after the switching operation of laminating part each other with the improvement with adding.

2) The shape and the high setting of solving the disconnected position of floodgate lead to the inconvenient problem of sealed operation inadequately rationally and long-pending thing, through set up the long-pending device of preventing between valve body inner wall bottom and drive arrangement bottom, set up through adopting the arc hunch seat, can prevent greatly that the particulate matter in the middle of the hydrops from stopping in the position of the arc hunch seat top face of notch below, reached and adopted concentrated scattered thing part to lead to the inconvenient beneficial effect of sealed operation with preventing long-pending thing.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the internal partial structure A of the present invention;

in the figure: the valve comprises a valve body-1, a connecting plate-2, a connecting hole-3, a cushion layer-4, a rotating seal component-5, a driving device-6, an anti-accumulation device-7, a frame seat-51, a lower clamping plate-52, a gasket-53, an upper clamping plate-54, a fixing piece-55, a convex seat-56, a mechanical seal-57, a bearing-58, a hand wheel-61, a valve rod-62, a threaded rod-63, a gate plate-64, a convex cushion block-65, a tabling groove-66, a tabling strip-67, a pressing layer-68, an inlet-69, an arc-shaped arch seat-71 and a notch-72.

Detailed Description

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present invention provides a manual gate valve with soft sealing flange: the anti-accumulation valve comprises a valve body 1, a connecting plate 2, connecting holes 3, a cushion layer 4, a sealing component 5, a driving device 6 and an anti-accumulation device 7, wherein the left end and the right end of the valve body 1 are respectively welded with the connecting plate 2, the connecting holes 3 are arranged on the peripheries of the left end and the right end of the connecting plate 2, the outer side of the inner wall of the connecting plate 2 is fixedly connected with the cushion layer 4, the middle part of the top end of the valve body 1 is fixedly connected with the sealing component 5, the middle part of the inner wall of the sealing component 5 is movably connected with the driving device 6, the driving device 6 penetrates through the middle part of the top end of the valve body 1 and is movably connected with the driving device 6, the anti-accumulation device 7 is arranged at the bottom end of the inner wall of the valve body 1, the driving device 6 comprises a hand wheel 61, a valve rod 62, a threaded rod 63, valve rod 62 bottom and threaded rod 63 welding, threaded rod 63 runs through flashboard 64 top middle part, and threaded rod 63 and flashboard 64 threaded connection, both ends upper portion and protruding pad 65 fixed connection about flashboard 64, 1 top middle part of valve body is provided with puts into mouth 69, put into mouth 69 bottom two parts and do not be provided with the gomphosis groove 66, gomphosis groove 66 inner wall and gomphosis strip 67 surface upper portion swing joint, gomphosis strip 67 top is through waterproof glue and is compressed tightly the layer 68 and bond, flashboard 64 bottom is provided with prevents amasss device 7, valve rod 62 runs through changes and seals subassembly 5 top bottom both ends middle part, and change sealed subassembly 5 and valve rod 62 swing joint.

The anti-accumulation device 7 comprises an arc-shaped arch seat 71 and a notch 72, the middle of the top end of the arc-shaped arch seat 71 is movably connected with the inner wall of the notch 72, the notch 72 is arranged at the bottom end of the valve rod 62, the arc-shaped arch seat 71 is arranged at the bottom end of the inner wall of the valve body 1, and the adoption of the scattered object concentration part for preventing the accumulation from causing inconvenient sealing operation is beneficial.

Wherein, the sealing assembly 5 comprises a frame seat 51, a lower clamp plate 52, a gasket 53, an upper clamp plate 54, a fixing member 55, a convex seat 56, a mechanical seal 57 and a bearing 58, the periphery of the top end of the frame seat 51 is welded with the lower clamp plate 52, the gasket 53 is arranged between the top end of the lower clamp plate 52 and the bottom end of the upper clamp plate 54, the fixing member 55 simultaneously penetrates through the top and bottom ends of the upper clamp plate 54 and the gasket 53 and the top end of the lower clamp plate 52, the upper clamp plate 54 is fixedly connected with the lower clamp plate 52 through the fixing member 55, the middle part of the top end of the upper clamp plate 54 is welded with the convex seat 56, the mechanical seal 57 and the bearing 58 are arranged on the inner wall of the convex seat 56, the mechanical seal 57 is arranged at the top end of the bearing 58, the valve rod 62 simultaneously penetrates through the middle parts of the top and bottom ends of the convex seat 56, the valve rod 62, to improve the air-tightness.

The inner wall of the embedding groove 66 and the upper part of the outer surface of the embedding strip 67 are mutually embedded, and the air tightness is improved by improving the matching degree between the inner wall of the embedding groove 66 and the upper part of the outer surface of the embedding strip 67.

Wherein, the outer surface of the hand wheel 61 is provided with a rubber layer, and the outer surface of the rubber layer is rough, so that the friction force is increased according to the above to prevent the hand from slipping.

The middle section of the top end of the arc-shaped arch seat 71 is embedded with the inner wall of the notch 72, and the sealing effect is improved by improving the engagement degree between the middle section of the top end of the arc-shaped arch seat 71 and the inner wall of the notch 72.

Wherein, the bottom of the recess 72 is provided with a fitting layer, and a component with elasticity is provided according to the above to increase the pressing force.

Wherein, the model of the mechanical seal 57 is APL-322, which is durable and cheap.

The cushion layer 4, the gasket 53, the pressing layer 68 and the attaching layer are made of rubber, have certain elasticity and are wear-resistant.

The mechanical seal 57 described in this patent is a device for preventing fluid leakage, which is composed of at least a pair of end faces perpendicular to the rotation axis, and which are kept in contact with each other and slide relative to each other by the action of fluid pressure and the elastic force (or magnetic force) of a compensating mechanism and the cooperation of an auxiliary seal.

The working principle is as follows: firstly, taking out the manual gate valve with the flange soft seal, and placing the manual gate valve at a mounting position;

then, the connecting plate is fixed with an external connecting part through a connecting hole 3 at the connecting plate 2, and a cushion layer 4 on the outer side of the inner wall of the connecting plate 2 provides a mounting sealing effect;

then, the lower clamp plate 52 at the top end of the frame seat 51 is pressed with the upper clamp plate 54 through the gasket 53 and fixed by the fixing piece 55 connecting the lower clamp plate 52 and the upper clamp plate 54, while the mechanical seal 57 in the boss 56 provides strong rotational air tightness, and the bearing 58 provides rotational assistance for the valve rod 62;

then, when the valve is used, namely the driving device 6 is arranged between the top end of the valve body 1 and the sealing component 5, the hand wheel 61 is grasped by a hand and a rotating force is applied, the valve rod 62 and the threaded rod 63 can be driven to rotate, the threaded rod 63 penetrates through the middle part of the top end of the flashboard 64 to rotate, the flashboard 64 can be driven to move up and down at the position of the placing opening 69 to carry out opening and closing operation on the valve body 1, the convex cushion blocks 65 move at the left end and the right end of the inner wall of the placing opening 69 to provide tightness when the valve is closed, the embedding strip 67 moves at the inner wall of the embedding groove 66 and is tightly attached by the pressing layer 68 to provide tightness when the valve is opened, and the effect of improving the tightness after the opening and closing operation by additionally arranging mutually attached parts;

finally, according to the above, through the anti-accumulation device 7 arranged between the bottom end of the inner wall of the valve body 1 and the bottom end of the driving device 6, through the adoption of the arc-shaped arch seat 71, the situation that particulate matters in accumulated liquid stay at the top end face of the arc-shaped arch seat 71 below the notch 72 can be greatly prevented, and the beneficial effect that the accumulated matters are prevented from causing inconvenience in sealing operation by adopting a scattered matter concentration part is achieved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A manual gate valve with a flange soft seal comprises a valve body (1), a connecting plate (2), a connecting hole (3), a cushion layer (4) and a rotary seal assembly (5), wherein the left end and the right end of the valve body (1) are respectively welded with the connecting plate (2), and the peripheries of the left end and the right end of the connecting plate (2) are provided with connecting holes (3), the outer side of the inner wall of the connecting plate (2) is fixedly connected with the cushion layer (4), the middle part of the top end of the valve body (1) is fixedly connected with a seal rotating assembly (5), the middle section of the inner wall of the seal rotating assembly (5) is movably connected with a driving device (6), the driving device (6) penetrates through the middle part of the top end of the valve body (1), the valve body (1) is movably connected with a driving device (6), the bottom end of the inner wall of the valve body (1) is provided with an anti-accumulation device (7), and the bottom end of the driving device (6) is provided with the anti-accumulation device (7);

the method is characterized in that: the anti-accumulation valve is characterized by further comprising a driving device (6) and an anti-accumulation device (7), wherein the driving device (6) comprises a hand wheel (61), a valve rod (62), a threaded rod (63), a flashboard (64), a convex pad (65), an embedding groove (66), an embedding strip (67), a pressing layer (68) and an embedding opening (69), the middle of the bottom end of the hand wheel (61) is fixedly connected with the valve rod (62), the bottom end of the valve rod (62) is welded with the threaded rod (63), the threaded rod (63) penetrates through the middle of the top end of the flashboard (64), the threaded rod (63) is in threaded connection with the flashboard (64), the upper portions of the left end and the right end of the flashboard (64) are fixedly connected with the convex pad (65), the middle of the top end of the valve body (1) is provided with the embedding opening (69), the left portion and the right portion of the bottom end of the embedding opening (, gomphosis strip (67) top is glued with compressing tightly layer (68) through waterproof glue, flashboard (64) bottom is provided with prevents long-pending device (7), valve rod (62) run through and change dense subassembly (5) top bottom both ends middle part to change dense subassembly (5) and valve rod (62) swing joint.

2. The manual gate valve with soft flange seal according to claim 1, wherein: prevent long-pending device (7) including arc hunch seat (71) and notch (72), arc hunch seat (71) top middle part and notch (72) inner wall swing joint, valve rod (62) bottom is provided with notch (72), valve body (1) inner wall bottom is provided with arc hunch seat (71).

3. The manual gate valve with soft flange seal according to claim 1, wherein: the seal rotating assembly (5) comprises a frame seat (51), a lower clamping plate (52), a gasket (53), an upper clamping plate (54), a fixing piece (55), a convex seat (56), a mechanical seal (57) and a bearing (58), wherein the periphery of the top end of the frame seat (51) is welded with the lower clamping plate (52), the gasket (53) is arranged between the top end of the lower clamping plate (52) and the bottom end of the upper clamping plate (54), the fixing piece (55) penetrates through the top and bottom ends of the upper clamping plate (54) and the gasket (53) and the top end of the lower clamping plate (52) simultaneously, the upper clamping plate (54) is fixedly connected with the lower clamping plate (52) through the fixing piece (55), the middle part of the top end of the upper clamping plate (54) is welded with the convex seat (56), the inner wall of the convex seat (56) is provided with the mechanical seal (57) and the bearing (58), the mechanical seal (57) is arranged at the top end of the bearing (58), and, and the valve rod (62) is movably connected with the convex seat (56), and the middle part of the top end of the valve body (1) is fixedly connected with the convex seat (56).

4. The manual gate valve with soft flange seal according to claim 1, wherein: the inner wall of the embedding groove (66) is embedded with the upper part of the outer surface of the embedding strip (67).

5. The manual gate valve with soft flange seal according to claim 1, wherein: the outer surface of the hand wheel (61) is provided with a rubber layer, and the outer surface of the rubber layer is rough.

6. The manual gate valve with soft flange seal according to claim 2, wherein: the middle section of the top end of the arc-shaped arch seat (71) is mutually embedded with the inner wall of the notch (72).

7. The manual gate valve with soft flange seal according to claim 2, wherein: the bottom end of the notch (72) is provided with a jointing layer.

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