CN211315175U - Rubber-lined double-gate-plate wedge-type gate valve - Google Patents

Abstract

The utility model discloses a lining is glued double-gate board wedge gate valve, including valve body and valve plate, the equal rigid coupling in both ends has the valve plate about the inner wall below of valve body, lifting unit is installed to the inboard of valve plate, lifting unit includes screw rod, horizontal pole, flashboard and piston, the outer wall rigid coupling of screw rod has the piston, the piston is laminated mutually with the valve body, through the steerable valve switch of lifting unit. This lining is glued double-gate board wedge gate valve, structure scientific and reasonable, convenience safe in utilization, be provided with lifting unit, drive assembly and drive assembly, including the carousel, the diaphragm, the first lantern ring, the second gear shaft, the second lantern ring, the cooperation between screw rod and the valve plate, make the carousel can drive the rotation that the diaphragm and first lantern ring rotate and finally drive the second lantern ring through the transmission of second gear shaft, realize the screw rod in the inside lift of second lantern ring, because this transmission process is for accelerating the transmission, consequently can avoid the longer problem of gate valve switching process required time in the use.

Description

Rubber-lined double-gate-plate wedge-type gate valve

Technical Field

The utility model relates to a gate valve technical field specifically is a rubber lining double-gate board wedge gate valve.

Background

The gate valve is an opening and closing piece gate plate, the movement direction of the gate plate is perpendicular 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 through contact of a valve seat and the gate plate, usually, a sealing surface can be subjected to surfacing welding of metal materials to increase abrasion resistance, such as surfacing welding of 1Cr13, STL6, stainless steel and the like, the gate plate is provided with a rigid gate plate and an elastic gate plate, and the gate valve is divided into the rigid gate valve and the elastic gate valve according to different gate plates.

For example, patent No. 201520862993.3 discloses a rubber-lined double gate plate wedge gate valve, which comprises a gate plate and a valve rod accommodated in a valve body cavity, wherein the valve body is connected with a valve cover, and the upper end of the valve cover is provided with a manual driving device through a bracket, so that the problem of reduced equipment weight can be solved, but the problem that the time required for the opening and closing process of the gate valve is long in the using process is solved, and the situation that the liquid trapped in the valve body cannot be discharged to influence the use when the corrosive or easily-deteriorated liquid is conveyed is still existed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lining rubber double-gate board wedge gate valve to solve the longer problem of the gate valve switching process required time in the use that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a rubber-lined double-gate-plate wedge-type gate valve comprises a valve body and a valve plate, wherein the left end and the right end below the inner wall of the valve body are fixedly connected with the valve plate, and a lifting assembly is arranged on the inner side of the valve plate;

the lifting assembly comprises a screw, a cross rod, a gate plate and a piston;

two the flashboard closely laminates with the valve plate, the inboard rigid coupling of flashboard has the horizontal pole, the upper end center rigid coupling of horizontal pole has the screw rod, screw rod and valve body clearance fit, the outer wall rigid coupling of screw rod has the piston, the piston laminates with the valve body mutually. The valve switch can be controlled by the lifting component.

Preferably, the flashboard and the valve plate are distributed in an axisymmetrical manner by taking the vertical center of the valve body as a reference. The relative positions of the shutter and the valve plate are restricted.

Preferably, a transmission assembly is arranged inside the upper part of the valve body;

the transmission assembly comprises a first lantern ring, a second bearing, a second gear shaft, a transverse plate, a sleeve, a support rod, a third bearing and a fourth bearing;

the outside of the first lantern ring is rotated with the valve body through the third bearing and is linked to each other, the inboard of the first lantern ring is equipped with a plurality of second gear shafts, the axial region outside of second gear shaft is passed through the second bearing and is rotated with the valve body and link to each other, the inboard of second gear shaft is equipped with the second lantern ring, second gear shaft and the equal intermeshing of first lantern ring and second lantern ring, the second lantern ring links to each other with the screw rod screw thread, the lower extreme outside of the first lantern ring is fixed with the diaphragm through a plurality of branches and is linked to each other, the lower extreme rigid coupling of the first lantern ring has the sleeve, telescopic outer wall below is rotated with the diaphragm through the fourth bearing and is linked to each other. The transmission assembly can be used for driving the screw rod to lift.

Preferably, the first and second collars have a high accuracy level of coaxiality. The transmission that the first lantern ring drove the second lantern ring is avoided unstable.

Preferably, a driving assembly is arranged below the transverse plate;

the driving assembly comprises a first bearing, a turntable, a first gear shaft and a fluted disc;

the fluted disc rigid coupling is at the lower extreme outer wall of diaphragm, the below right side of fluted disc is equipped with first gear shaft, the gear portion and the fluted disc intermeshing of first gear shaft, the axial region of first gear shaft passes through first bearing and rotates with the valve body and link to each other, the right-hand member rigid coupling of first gear shaft has the carousel. The driving component can drive the input end of the transmission component.

Preferably, a trigger assembly is arranged below the cross rod;

the trigger assembly comprises a drain pipe, a spring, a pressing plate, a vertical rod, a cushion block and a bottom plate;

the water discharging pipe is fixedly connected to the center of the lower end of the valve body, the water discharging pipe is communicated with the valve body, a cushion block is fixedly connected to the upper portion of the inner wall of the water discharging pipe, a vertical rod is arranged inside the cushion block, the upper end and the lower end of the vertical rod are fixedly connected with a bottom plate and a pressing plate respectively, the bottom plate is attached to the cross rod, a spring is arranged above the outer wall of the vertical rod, and the upper side and the lower side of the spring are fixedly connected with. The trigger assembly can discharge water inside the gate plate.

Preferably, the inner wall of the lower end of the cushion block and the outer wall of the upper end of the pressing plate are both processed with inclination angles. The cushion block and the pressing plate are convenient to form sealing fit.

Preferably, the inside rigid coupling of valve body has the lining to glue, both ends are all installed the flange about the outer wall of valve body. The lining rubber can be convenient for protect the valve body, and the flange is convenient for the connection of the valve body and the pipeline.

Compared with the prior art, the beneficial effects of the utility model are that: this lining rubber double-gate board wedge gate valve, structure scientific and reasonable, convenience safe in utilization:

be provided with lifting unit, drive assembly and drive assembly, including the carousel, the diaphragm, first lantern ring, the second gear axle, the second lantern ring, the cooperation between screw rod and the valve plate, make the carousel can drive the rotation that the diaphragm and first lantern ring rotated and finally drive the second lantern ring through the transmission of second gear axle, realize the screw rod in the inside lift of second lantern ring, because this transmission process is for accelerating the transmission, consequently can avoid the longer problem of gate valve switching process required time in the use.

Be provided with the trigger subassembly, including drain pipe, spring, clamp plate, montant, bottom plate, horizontal pole, the cooperation between valve plate and the flashboard, make flashboard and horizontal pole at the in-process that moves down and cooperate sealedly with the valve plate, can push down the bottom plate and drive the clamp plate through the montant and move down, make the drain pipe be in sealedly, avoid can't be stranded the condition that influences the use in the inside liquid discharge of valve body when carrying the liquid that has corrosivity or easy deterioration.

Drawings

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

FIG. 2 is a schematic structural view of the valve body, the screw and the first collar of FIG. 1;

FIG. 3 is a schematic view of the valve body, valve plate and gate plate of FIG. 1;

fig. 4 is a schematic structural view of the transverse plate, the sleeve and the second collar in fig. 1.

In the figure: 1. valve body, 2, trigger subassembly, 201, the drain pipe, 202, the spring, 203, the clamp plate, 204, the montant, 205, the cushion, 206, the bottom plate, 3, drive assembly, 301, first bearing, 302, the carousel, 303, first gear shaft, 304, the fluted disc, 4, drive assembly, 401, first lantern ring, 402, the second lantern ring, 403, the second bearing, 404, the second gear shaft, 405, the diaphragm, 406, the sleeve, 407, branch, 408, the third bearing, 409, the fourth bearing, 5, lift subassembly, 501, the screw rod, 502, the horizontal pole, 503, flashboard, 504, piston, 6, valve plate, 7, the flange, 8, the rubber lining.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a rubber-lined double-gate-plate wedge-type gate valve comprises a valve body 1 and a valve plate 6, wherein the left end and the right end below the inner wall of the valve body 1 are fixedly connected with the valve plate 6, the valve body 1 can support the valve plate 6, the inner side of the valve plate 6 is provided with a lifting assembly 5, the lifting assembly 5 comprises a screw 501, a cross rod 502, a gate plate 503 and a piston 504, the two gate plates 503 are tightly attached to the valve plate 6, sealing is realized through the attachment of the gate plates 503 and the valve plate 6, the inner side of the gate plate 503 is fixedly connected with the cross rod 502, the cross rod 502 can drive the gate plate 503 to move, the upper end center of the cross rod 502 is fixedly connected with the screw 501, the screw 501 can drive the cross rod 502 to move, the screw 501 is in clearance fit with the valve body 1, the screw 501 can move in the valve body 1, the outer wall of the screw 501 is fixedly connected with the piston 504, and relative sealing in the moving process is ensured, the flashboard 503 and the valve plate 6 are distributed in axial symmetry by taking the vertical center of the valve body 1 as a reference, and the relative positions of the flashboard 503 and the valve plate 6 are determined.

A transmission assembly 4 is arranged inside the upper portion of the valve body 1, the transmission assembly 4 comprises a first lantern ring 401, a second lantern ring 402, a second bearing 403, a second gear shaft 404, a transverse plate 405, a sleeve 406, a support rod 407, a third bearing 408 and a fourth bearing 409, the outer side of the first lantern ring 401 is rotatably connected with the valve body 1 through the third bearing 408, the valve body 1 can rotatably support the first lantern ring 401 through the third bearing 408, the inner side of the first lantern ring 401 is provided with a plurality of second gear shafts 404, the outer side of the shaft portion of the second gear shaft 404 is rotatably connected with the valve body 1 through the second bearing 403, the valve body 1 can rotatably support the second gear shaft 404 through the second bearing 403, the inner side of the second gear shaft 404 is provided with the second lantern ring 402, the second gear shaft 404 is mutually meshed with the first lantern ring 401 and the second lantern ring 402, the first lantern ring 401 can drive the second lantern ring 402 to rotate through the, second lantern ring 402 and screw rod 501 thread connection, second lantern ring 402 rotates and can drive screw rod 501 and go up and down to remove, the lower extreme outside of first lantern ring 401 is fixed continuous with diaphragm 405 through a plurality of branch 407, diaphragm 405 accessible branch 407 drives first lantern ring 401 and rotates, the lower extreme rigid coupling of first lantern ring 401 has sleeve 406, sleeve 406 can drive first lantern ring 401 and rotate, it is continuous with diaphragm 405 rotation through fourth bearing 409 in the outer wall below of sleeve 406, diaphragm 405 accessible fourth bearing 409 rotates support sleeve 406, the axiality precision grade of first lantern ring 401 and second lantern ring 402 is high, avoid the transmission stability difference between first lantern ring 401 and the second lantern ring 402.

Drive assembly 3 is installed to the below of diaphragm 405, drive assembly 3 includes first bearing 301, carousel 302, first gear shaft 303 and fluted disc 304, fluted disc 304 rigid coupling is at the lower extreme outer wall of diaphragm 405, fluted disc 304 can drive diaphragm 405 and rotate, the below right side of fluted disc 304 is equipped with first gear shaft 303, the gear portion and the fluted disc 304 intermeshing of first gear shaft 303, first gear shaft 303 can drive fluted disc 304 and rotate, the axial region of first gear shaft 303 rotates with valve body 1 through first bearing 301 and links to each other, valve body 1 accessible first bearing 301 rotates first gear shaft 303 and supports, the right-hand member rigid coupling of first gear shaft 303 has carousel 302, carousel 302 can drive first gear shaft 303 and rotate.

The trigger component 2 is arranged below the cross rod 502, the trigger component 2 comprises a drain pipe 201, a spring 202, a pressure plate 203, a vertical rod 204, a cushion block 205 and a bottom plate 206, the drain pipe 201 is fixedly connected at the center of the lower end of the valve body 1, the drain pipe 201 is communicated with an external collecting device, liquid in the center of the interior of the valve body 1 can be discharged from the drain pipe 201, the cushion block 205 is fixedly connected above the inner wall of the drain pipe 201, the drain pipe 201 can support the cushion block 205, the vertical rod 204 is arranged inside the cushion block 205, the bottom plate 206 and the pressure plate 203 are respectively fixedly connected at the upper end and the lower end of the vertical rod 204, the pressure plate 203 can be driven by the bottom plate 206 to move, the bottom plate 206 is attached to the cross rod 502, the cross rod 502 can push the bottom plate 206 to move downwards, the spring 202 is arranged above the outer wall, bottom plate 206 downstream can extrude spring 202, and the lower extreme inner wall of cushion 205 and clamp plate 203 upper end outer wall all process the inclination, the sealed laminating between cushion 205 and the clamp plate 203 of being convenient for, and the inside rigid coupling of valve body 1 has the lining glue 8, and lining glue 8 can protect the inside of valve body 1, and flange 7 is all installed at both ends about the outer wall of valve body 1, and flange 7 can be convenient for valve body 1 and external pipeline intercommunication.

When the rubber-lined double-gate-plate wedge gate valve is required to convey corrosive or easily-deteriorated liquid for use, firstly, a user can install the valve body 1 at the connecting part of a conveying pipeline through the flange 7, when the valve body needs to be opened to realize liquid flowing, the user can rotate the rotary disc 302 to enable the rotary disc 302 to drive the transverse plate 405 to rotate through the first gear shaft 303 and the fluted disc 304, the outer wall teeth number between the first gear shaft 303 and the fluted disc 304 is consistent, the rotating speed between the first gear shaft 303 and the fluted disc 304 is consistent, the transverse plate 405 can drive the first lantern ring 401 to rotate through the support rod 407, the first lantern ring 401 can drive the second lantern ring 402 to rotate through the second gear shaft 404, as the teeth number of the inner wall of the first lantern ring 401 is larger than that of the outer wall of the second gear shaft 404, the transmission process is accelerated transmission, the moving speed of the screw 501 in the first lantern, the flashboard 503 is removed from the joint with the valve plate 6, the left and right communication in the interior of the valve body 1 is realized, if the valve is required to be closed, the screw 501 is moved downwards by the reversible rotary disc 302, the flashboard 503 can be driven to be pressed on the valve plate 6 again when the screw 501 moves downwards, the partition of the left side and the right side of the valve body 1 is realized, however, the center of the valve body 1 is still in a liquid circulation state before sealing, liquid still exists in the interior of the valve body 1 after sealing is completed, and the cross rod 502 which drives the valve 503 can push the floor 206 downwards in the descending process to discharge the liquid in the interior from the drain pipe 201 for collection, so that the influence caused in the interior of the valve body 1 for a long time is.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a lining rubber double-gate board wedge gate valve, includes valve body (1) and valve plate (6), the equal rigid coupling in both ends has valve plate (6), its characterized in that about the inner wall below of valve body (1): the inner side of the valve plate (6) is provided with a lifting assembly (5);

the lifting assembly (5) comprises a screw (501), a cross rod (502), a gate plate (503) and a piston (504);

two flashboard (503) and valve plate (6) closely laminate, the inboard rigid coupling of flashboard (503) has horizontal pole (502), the upper end center rigid coupling of horizontal pole (502) has screw rod (501), screw rod (501) and valve body (1) clearance fit, the outer wall rigid coupling of screw rod (501) has piston (504), piston (504) laminate mutually with valve body (1).

2. The rubber-lined double-gate-plate wedge-type gate valve according to claim 1, wherein: the flashboards (503) and the valve plates (6) are distributed in an axisymmetric mode by taking the vertical center of the valve body (1) as a reference.

3. The rubber-lined double-gate-plate wedge-type gate valve according to claim 1, wherein: a transmission assembly (4) is arranged inside the upper part of the valve body (1);

the transmission assembly (4) comprises a first lantern ring (401), a second lantern ring (402), a second bearing (403), a second gear shaft (404), a transverse plate (405), a sleeve (406), a support rod (407), a third bearing (408) and a fourth bearing (409);

the outer side of the first lantern ring (401) is rotatably connected with the valve body (1) through a third bearing (408), the inner side of the first lantern ring (401) is provided with a plurality of second gear shafts (404), the outer side of the shaft portion of each second gear shaft (404) is rotatably connected with the valve body (1) through a second bearing (403), the inner side of each second gear shaft (404) is provided with a second lantern ring (402), the second gear shafts (404) are mutually meshed with the first lantern ring (401) and the second lantern ring (402), the second lantern ring (402) is in threaded connection with the screw rod (501), the outer side of the lower end of the first lantern ring (401) is fixedly connected with the transverse plate (405) through a plurality of supporting rods (407), the lower end of the first lantern ring (401) is fixedly connected with a sleeve (406), and the lower portion of the outer wall of the sleeve (406) is rotatably connected with the transverse plate (405) through a fourth bearing (409).

4. The rubber-lined double-gate wedge gate valve of claim 3, wherein: the coaxiality precision of the first collar (401) and the second collar (402) is high.

5. The rubber-lined double-gate wedge gate valve of claim 3, wherein: a driving assembly (3) is arranged below the transverse plate (405);

the driving assembly (3) comprises a first bearing (301), a turntable (302), a first gear shaft (303) and a fluted disc (304);

fluted disc (304) rigid coupling is at the lower extreme outer wall of diaphragm (405), the below right side of fluted disc (304) is equipped with first gear shaft (303), the gear portion and the fluted disc (304) intermeshing of first gear shaft (303), the axial region of first gear shaft (303) rotates with valve body (1) through first bearing (301) and links to each other, the right-hand member rigid coupling of first gear shaft (303) has carousel (302).

6. The rubber-lined double-gate-plate wedge-type gate valve according to claim 1, wherein: a trigger component (2) is arranged below the cross rod (502);

the trigger assembly (2) comprises a drain pipe (201), a spring (202), a pressing plate (203), a vertical rod (204), a cushion block (205) and a bottom plate (206);

the utility model discloses a valve body, including drain pipe (201), drain pipe (201) and valve body (1), the lower extreme center of drain pipe (201) rigid coupling at valve body (1), drain pipe (201) is linked together with valve body (1), the inner wall top rigid coupling of drain pipe (201) has cushion (205), the inside of cushion (205) is equipped with montant (204), the upper and lower both ends of montant (204) rigid coupling respectively has bottom plate (206) and clamp plate (203), bottom plate (206) and horizontal pole (502) laminate mutually, the outer wall top of montant (204) is equipped with spring (202), the upper and lower both sides of spring (202) are fixed continuous with bottom plate (206) and valve body (1).

7. The rubber-lined double-gate wedge gate valve of claim 6, wherein: the inner wall of the lower end of the cushion block (205) and the outer wall of the upper end of the pressing plate (203) are both processed with inclination angles.

8. The rubber-lined double-gate-plate wedge-type gate valve according to claim 1, wherein: the inner portion of the valve body (1) is fixedly connected with a lining rubber (8), and flanges (7) are mounted at the left end and the right end of the outer wall of the valve body (1).

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