CN210623620U

CN210623620U - Knife-type gate valve with cleaning function

Info

Publication number: CN210623620U
Application number: CN201921170967.9U
Authority: CN
Inventors: 王贤淦
Original assignee: Yongjia Xuchen Valve Co Ltd
Current assignee: Yongjia Xuchen Valve Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-26
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a knife gate valve with cleaning function, which comprises a valve body, a liquid outlet is arranged on the valve body, a flashboard is arranged on the valve body in a sliding way, the flashboard is movably arranged in the liquid outlet, a scraping device comprises a flange fixedly connected with the inner top surface of one side of the liquid outlet, a rectangular sleeve is fixedly arranged on one side of the flange facing the flashboard, a slide block is clamped in the rectangular sleeve in a sliding way, a round bar is arranged on one side of the slide block facing the flashboard, the other end of the round bar penetrates through the rectangular sleeve in a sliding way to be installed with a mounting plate, a scraper blade is arranged on one side of the mounting plate facing the flashboard, a first elastic element is fixedly connected on the side wall of the slide block above and below the round bar, the free end of the elastic element is fixedly connected with the inner wall of the rectangular, the outer wall of pivot is fixed to be cup jointed the cam, and the outer wall of cam rotates the laminating with the outer wall of cylinder.

Description

Knife-type gate valve with cleaning function

Technical Field

The utility model relates to a gate valve technical field specifically is a sword type gate valve with clean function.

Background

The knife gate valve is also called knife gate valve, slurry valve, mud valve, its opening and closing part is a flashboard, the movement direction of the flashboard is perpendicular to the fluid direction, the medium is cut off by the knife-edge flashboard which can cut the fiber material, when the flashboard on the knife gate valve is used, some medium can be adhered on the external wall, when the flashboard is opened or closed, the sealing surface of the valve board and the valve body can generate gap due to the filled scale, the valve can not be closed in place normally, the material leakage phenomenon can occur, if the adhered impurity can not be scraped completely, after the gate valve is completely opened, the medium adhered on the flashboard can be taken out of the valve body and exposed outside, if the medium is poisonous and volatile, the safety accident can be caused, therefore, a knife gate valve with cleaning function is provided for solving the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sword type gate valve with clean function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a knife gate valve with a cleaning function comprises a valve body, wherein a liquid outlet is formed in the valve body, a flashboard is slidably mounted on the valve body, the flashboard is movably located in the liquid outlet, a scraping device is fixedly mounted at the upper end of one side in the liquid outlet and comprises a flange fixedly connected with the inner top surface of one side of the liquid outlet, a rectangular sleeve is fixedly arranged on one side, facing the flashboard, of the flange, a sliding block is clamped in the rectangular sleeve in a sliding mode, a round rod is fixedly arranged on one side, facing the flashboard, of the sliding block, a mounting plate is movably mounted at the other end of the round rod in a sliding mode and penetrates through the rectangular sleeve in a sliding mode, a scraper is fixedly arranged on one side, facing the flashboard, of the mounting plate is movably contacted with the flashboard, a first elastic piece is fixedly connected onto the side wall of the sliding block above and below, the rotary drum is rotatably installed on the U-shaped plate, a rotating shaft is rotatably connected to the bottom in the rectangular sleeve on one side of the rotating drum, a cam is fixedly sleeved on the outer wall of the rotating shaft, and the outer wall of the cam is rotatably attached to the outer wall of the rotating drum.

As an optimal technical scheme of the utility model, the top of pivot extends to valve body top fixedly connected with hand wheel, the outer wall of hand wheel is equipped with the netted anti-skidding line of one deck.

As a preferred technical scheme of the utility model, the fixed stopper that is equipped with of top and bottom symmetry of slider, the rectangle sleeve inner wall is equipped with the spacing groove with the stopper cooperation, sliding joint has the stopper in the spacing groove.

As a preferred technical scheme of the utility model, the top of mounting panel is umbelliform, and the mounting panel is close to the fixed screw rod that is equipped with in telescopic one side of rectangle, the round bar lateral wall is equipped with the screw rod cooperation, screw internal thread is pegged graft and is had the screw rod.

As a preferred technical scheme of the utility model, the top fixed mounting of valve body has positioner, positioner include with valve body top fixed connection's a plurality of bracing piece, the top fixed connection of bracing piece is in bar shaped plate bottom surface four corners department, be equipped with the through hole on the bar shaped plate, through having the pivot in the through hole, and the pivot is located one section fixed tooth piece that is equipped with a plurality of in the through hole and is cyclic annular distribution of outer wall, and is equipped with the mounting groove in the bar shaped plate of through hole one side, sliding joint has the slide in the mounting groove, the slide is close to the fixed stop pin that is equipped with in one side of through hole, the stop pin slides and runs through mounting groove and the epaxial tooth piece intermeshing.

As a preferred technical scheme of the utility model, the slide is kept away from the fixed pulling rod that is equipped with in one side of through hole, the second elastic component has been cup jointed in the outer wall activity of pulling rod, the both ends of second elastic component respectively with mounting groove inner wall and slide lateral wall fixed connection.

As a preferred technical scheme of the utility model, the free end of pulling pole slides and runs through mounting groove fixedly connected with handle, the outer wall of handle is equipped with the netted anti-skidding line of one deck.

Compared with the prior art, the beneficial effects of the utility model are that:

the residue adhered on the outer wall of the flashboard is scraped by the scraper by utilizing the matching of the scraping device and the positioning device, so that the valve body is prevented from being taken out and exposed outside, safety accidents can be caused if the residue is toxic and volatile media, and the phenomenon that the sealing surface of the valve plate and the valve body generates a gap due to the filled scaling substances and a liquid outlet cannot be normally closed in place and the leakage phenomenon occurs because the media are solidified on the flashboard is not eliminated,

drawings

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

FIG. 3 is an enlarged structural view of the structure at A in FIG. 1 according to the present invention;

fig. 2 is a cross-sectional view of the middle positioning device of the present invention.

In the figure: 1 valve body, 11 liquid outlet, 12 gate plate, 2 scraping device, 21 flange, 22 rectangular sleeve, 23 sliding block, 24 round rod, 25 mounting plate, 26 scraping plate, 27 first elastic element, 28U-shaped plate, 29 roller, 210 rotating shaft, 211 cam, 212 limiting block, 213 limiting groove, 214 screw rod, 215 screw hole, 216 hand wheel, 217 tooth block, 3 positioning device, 31 supporting rod, 32 strip-shaped plate, 33 through hole, 34 mounting groove, 35 sliding plate, 36 stopping pin, 37 pulling rod, 38 second elastic element and 39 handle.

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. 1-3, the present invention provides a technical solution: a knife gate valve with a cleaning function comprises a valve body 1, a liquid outlet 11 is arranged on the valve body 1, a flashboard 12 is slidably arranged on the valve body 1, the flashboard 12 is movably positioned in the liquid outlet 11, a scraping device 2 is fixedly arranged at the upper end of one side in the liquid outlet 11, the scraping device 2 comprises a flange 21 fixedly connected with the inner top surface of one side of the liquid outlet 11, a rectangular sleeve 22 is fixedly arranged on one surface, facing the flashboard 12, of the flange 21, a sliding block 23 is slidably clamped in the rectangular sleeve 22, a round rod 24 is fixedly arranged on one surface, facing the flashboard 12, of the sliding block 23, a mounting plate 25 is movably arranged at the other end of the round rod 24 in a sliding mode and penetrates through the rectangular sleeve 22, a scraping plate 26 is fixedly arranged on one surface, facing the flashboard 12, the scraping plate 26 is movably contacted with the flashboard 12, a first elastic piece 27 is fixedly, the side, far away from the flashboard 12, of the sliding block 23 is fixedly provided with a U-shaped plate 28, the U-shaped plate 28 is rotatably provided with a roller 29, the bottom inside a rectangular sleeve 22 on one side of the roller 29 is rotatably connected with a rotating shaft 210, the outer wall of the rotating shaft 210 is fixedly sleeved with a cam 211, the outer wall of the cam 211 is rotatably attached to the outer wall of the roller 29, the top end of the rotating shaft 210 extends to the upper side of the valve body 1 and is fixedly connected with a hand wheel 216, the outer wall of the hand wheel 216 is provided with a layer of net-shaped anti-slip patterns, when the flashboard 12 needs to be opened and the liquid outlet 11 is opened, the hand wheel 216 is rotated to drive the rotating shaft 210 and the cam 211 to rotate, so that the farthest end of the cam 211 is gradually contacted with the outer wall of the roller 29, in the process of gradual contact, the sliding block 24 is used for compressing the first elastic, during the upward movement and opening of the shutter 12, the adhered residues on the outer wall thereof are scraped by the scraper 26, and are prevented from being carried out of the valve body 1, exposed outside, if toxic and volatile media exist, safety accidents can be caused, and the phenomenon that the media are solidified on the flashboard 12 to cause the sealing surface of the valve plate 12 and the valve body 1 to generate gaps due to the filled scaling substances and cause the liquid outlet 11 to be incapable of being normally closed in place and leakage occurs is avoided, if the liquid outlet 11 needs to be closed, before the gate 12 moves downwards, the hand wheel 216 is used for driving the rotating shaft 210 and the cam 211 to rotate reversely, so that the cam 211 is reset, and in the process of resetting the cam 211, the scraper 26 is also reset along with the cam 211 under the action of the elastic force of the first elastic member 27, so that the scraper 26 is separated from the shutter 12, and the condition that the scraper 26 is contacted with the shutter 12 for a long time to cause excessive abrasion is prevented.

The top and the bottom symmetry of slider 23 are fixed and are equipped with stopper 212, and rectangular sleeve 22 inner wall is equipped with spacing groove 213 with the cooperation of stopper 212, and sliding joint has stopper 212 in spacing groove 213, guarantees the steady motion of slider 23.

The top of mounting panel 25 is the umbelliform, and the one side that mounting panel 25 is close to rectangular sleeve 22 is fixed to be equipped with screw rod 214, and the lateral wall of round bar 24 is equipped with screw hole 215 with the screw rod 214 cooperation, and screw hole 215 internal thread is pegged graft and is had screw rod 214, and the top of mounting panel 25 is the umbelliform, prevents that the medium from piling up at the top of mounting panel 25, and screw rod 214 on the mounting panel 25 and the screw hole 215 threaded connection on the round bar 24, and convenient to detach carries out the change of scraper.

The top of the valve body 1 is fixedly provided with a positioning device 3, the positioning device 3 comprises a plurality of support rods 31 fixedly connected with the top of the valve body 1, the top ends of the support rods 31 are fixedly connected with four corners of the bottom surface of a strip-shaped plate 32, the strip-shaped plate 32 is provided with a through hole 33, a rotating shaft 210 passes through the through hole 33, a section of outer wall of the rotating shaft 210, which is positioned in the through hole 33, is fixedly provided with a plurality of tooth blocks 217 which are distributed annularly, a mounting groove 34 is arranged in the strip-shaped plate 32 at one side of the through hole 33, a sliding plate 35 is slidably clamped in the mounting groove 34, one side of the sliding plate 35, which is close to the through hole 33, is fixedly provided with a stop pin 36, the stop pin 36 slidably penetrates through the mounting groove 34 to be mutually meshed with the tooth blocks 217 on the outer wall of the rotating shaft 210, one side of the sliding plate 35, the free end of the pulling rod 37 is slidably penetrated through the mounting groove 34 and fixedly connected with a handle 39, the outer wall of the handle 39 is provided with a layer of netted anti-slip patterns, before the rotating shaft 210 rotates, the handle 39 is utilized to drive the pulling rod 37 to move towards the direction far away from the strip-shaped plate 32, the sliding plate 35 is further driven to compress the second elastic piece 38, the stop pin 36 is separated from the tooth block 217 on the rotating shaft 210, the rotating shaft 210 is unlocked, after the rotating shaft 210 is unlocked completely, the handle 39 is loosened, and the stop pin 36 is automatically meshed with the tooth block 217 under the elastic force action of the second elastic piece 38, so that the rotating shaft 210 is locked.

The working principle is as follows: the utility model discloses need open at flashboard 12, when opening liquid outlet 11, at first utilize handle 39 to drive pulling rod 37 to the direction motion of keeping away from strip shaped plate 32, further drive slide 35 to second elastic component 38 compression, make stop pin 36 break away from with the tooth piece 217 on the pivot 210, realize the unblock of pivot 210, then rotate hand wheel 216 and drive pivot 210 and cam 211 and rotate, make the most distal end of cam 211 gradually contact with the outer wall of cylinder 29, in the in-process of gradually contacting, realize compressing first elastic component 27 through slider 24, utilize round bar 24 to drive mounting panel 25 and scraper blade 26 to the direction motion of flashboard 12, until scraper blade 26 contacts with the outer wall of flashboard 12, stop hand wheel 216's rotation, loosen handle 39 this moment, stop pin 36 is under the elastic force effect of second elastic component 38, automatic and tooth piece 217 mesh, realize the locking of pivot 210, flashboard 12 is in the in-process that the upward movement was opened, residues of adhesion on the outer wall of the valve body are scraped through the scraper 26, the valve body 1 is prevented from being taken out, the residues are exposed outside, if the residues are toxic and volatile media, safety accidents can be caused, the media are not prevented from being solidified on the flashboard 12, a gap can be generated between the sealing surface of the valve plate 12 and the valve body 1 due to the filled scaling, the liquid outlet 11 cannot be normally closed in place, and a material leakage phenomenon occurs.

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

1. The utility model provides a sword type gate valve with clean function, includes valve body (1), be equipped with liquid outlet (11) on valve body (1), and slidable mounting has flashboard (12) on valve body (1), flashboard (12) activity is located liquid outlet (11), its characterized in that: one side upper end fixed mounting has scraping device (2) in liquid outlet (11), scraping device (2) include with liquid outlet (11) one side in top surface fixed connection's flange (21), flange (21) are fixed towards the one side of flashboard (12) and are equipped with rectangle sleeve (22), sliding joint has slider (23) in rectangle sleeve (22), slider (23) are fixed towards the one side of flashboard (12) and are equipped with round bar (24), the other end of round bar (24) slides and runs through rectangle sleeve (22) movable mounting has mounting panel (25), mounting panel (25) are fixed towards the one side of flashboard (12) and are equipped with scraper blade (26), scraper blade (26) and flashboard (12) movable contact, and on slider (23) lateral wall fixedly connected with first elastic component (27) of round bar (24) top and below, the free end of elastic component (27) and the inner wall fixed connection of rectangle sleeve (22), the fixed U-shaped plate (28) that is equipped with in one side that flashboard (12) were kept away from in slider (23), rotate on U-shaped plate (28) and install cylinder (29), the bottom rotates in rectangle sleeve (22) of cylinder (29) one side and is connected with pivot (210), the outer wall of pivot (210) is fixed to be cup jointed cam (211), the outer wall of cam (211) rotates the laminating with the outer wall of cylinder (29).

2. The knife gate valve with cleaning function according to claim 1, characterized in that: the top of pivot (210) extends to valve body (1) top fixedly connected with hand wheel (216), the outer wall of hand wheel (216) is equipped with the netted anti-skidding line of one deck.

3. The knife gate valve with cleaning function according to claim 1, characterized in that: the top and the bottom symmetry of slider (23) are fixed and are equipped with stopper (212), rectangle sleeve (22) inner wall is equipped with spacing groove (213) with stopper (212) cooperation, sliding joint has stopper (212) in spacing groove (213).

4. The knife gate valve with cleaning function according to claim 1, characterized in that: the top of mounting panel (25) is umbelliform, and mounting panel (25) are close to the fixed screw rod (214) that is equipped with in one side of rectangle sleeve (22), round bar (24) lateral wall is equipped with screw hole (215) with screw rod (214) cooperation, screw hole (215) internal thread is pegged graft and is had screw rod (214).

5. The knife gate valve with cleaning function according to claim 1, characterized in that: the top of the valve body (1) is fixedly provided with a positioning device (3), the positioning device (3) comprises a plurality of supporting rods (31) fixedly connected with the top of the valve body (1), the top end of the supporting rod (31) is fixedly connected at the four corners of the bottom surface of the strip-shaped plate (32), the strip-shaped plate (32) is provided with a through hole (33), a rotating shaft (210) passes through the through hole (33), and a section of outer wall of the rotating shaft (210) positioned in the through hole (33) is fixedly provided with a plurality of annularly distributed tooth blocks (217), and a mounting groove (34) is arranged in the strip-shaped plate (32) at one side of the through hole (33), a sliding plate (35) is slidably clamped in the mounting groove (34), a stop pin (36) is fixedly arranged on one side of the sliding plate (35) close to the through hole (33), the stop pin (36) penetrates through the mounting groove (34) in a sliding mode and is meshed with the tooth block (217) on the outer wall of the rotating shaft (210).

6. The knife gate valve with cleaning function according to claim 5, characterized in that: one side of the through hole (33) is kept away from in slide plate (35) is fixedly provided with a pulling rod (37), the outer wall of the pulling rod (37) is movably sleeved with a second elastic part (38), and two ends of the second elastic part (38) are fixedly connected with the inner wall of the mounting groove (34) and the side wall of the slide plate (35) respectively.

7. The knife gate valve with cleaning function according to claim 6, characterized in that: the free end of the pulling rod (37) penetrates through the mounting groove (34) in a sliding mode to be fixedly connected with a handle (39), and a layer of net-shaped anti-skidding grains is arranged on the outer wall of the handle (39).