CN216843145U

CN216843145U - Improved flange butterfly valve

Info

Publication number: CN216843145U
Application number: CN202123155775.0U
Authority: CN
Inventors: 陈炳顺
Original assignee: Fujian Kalsiwei Technology Co ltd
Current assignee: Fujian Kalsiwei Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-06-28
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses an improved flange butterfly valve, it relates to flange butterfly valve technical field. The novel scraper valve comprises a valve body, a valve plate is arranged in the valve body, two sides of the valve plate are respectively hinged with connecting rods, the two connecting rods are arranged in parallel all the time, the other end of each connecting rod is hinged with a fixed annular seat, the annular seat is far away from a scraper blade fixedly connected with one side of the valve plate, the scraper blade is arranged at the scraping head of the scraper blade in contact with the inner wall of the valve body, filter plates are arranged at two ends of the valve body, the filter plates and connecting blocks fixed on the inner wall of the valve body can be detachably connected, the valve rod is connected with the valve plate and then vertically penetrates out of the valve body, and the valve rod positioned outside the valve body is connected with a transmission device. After the technical scheme is adopted, the beneficial effects of the utility model are that: the valve body inner wall cleaning device has the advantages that the cleaning effect on the inner wall of the valve body can be realized, the maintenance or replacement cost is reduced while the filtering effect is improved, the control stability is also improved, the adjustment is convenient, the practicability is good, and the better use prospect is brought.

Description

Improved flange butterfly valve

Technical Field

The utility model relates to a flange butterfly valve technical field, concretely relates to flange butterfly valve of improved generation.

Background

The flange butterfly valve is also called a flange flap valve, is a regulating valve with simple structure, can be used for the butterfly valve of the on-off control of low-pressure pipeline medium, and refers to the valve that the closing member (valve clack or butterfly plate) is a disc, rotates around the valve shaft to open and close, the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil, liquid metal and radioactive media, mainly plays the role of cutting off and throttling on the pipeline, but the existing flange butterfly valve has some problems in the actual use: 1. after the butterfly valve is used for a long time, a layer of dirt is formed on the inner wall of the valve body, and the defect of inconvenient cleaning exists; 2. the filter plate in the filter mechanism is fixedly arranged inside the valve body and cannot be disassembled and replaced, so that the maintenance or replacement cost is high; 3. after long-time use, internal structure of the transmission device is easy to loosen, so that the valve plate cannot be stably controlled to be opened and closed through the valve handle.

Aiming at the problems, innovative design is urgently needed on the basis of the original flange butterfly valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide an improved generation's flange butterfly valve can realize having improved the maintenance or the replacement cost has been reduced when the filter effect to the clearance effect of valve body inner wall, has still improved control stability, is convenient for adjust, and the practicality is good, has brought better use prospect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the rotary valve comprises a valve body, a valve plate is arranged in the valve body, two sides of the valve plate are respectively hinged with a connecting rod, the two connecting rods are arranged in parallel all the time, the other end of each connecting rod is hinged with a fixed annular seat, one side of the annular seat, which is far away from the valve plate, is fixedly connected with a scraping blade, the scraping head of the scraping blade is arranged in contact with the inner wall of the valve body, two ends of the valve body are provided with filter plates, the filter plates are detachably connected with connecting blocks fixed on the inner wall of the valve body, the valve rod vertically penetrates out of the valve body after being connected with the valve plate, the valve rod positioned outside the valve body is connected with a transmission device, the rotation device comprises a valve seat arranged on the valve body, the valve rod is fixedly connected with a conical gear positioned inside the valve seat, a first rotating shaft is arranged above the valve rod and horizontally penetrates out of the valve seat, the first rotating shaft is connected with a second rotating shaft through the conical gear, the two conical gears are meshed, and one end of the first rotating shaft, which is positioned outside the valve seat, is fixedly connected with a valve handle, a limiting vertical plate is arranged at the joint of the first rotating shaft and the valve seat, the limiting vertical plate is in sliding connection with a sliding groove formed in the inner wall of the valve seat through a sliding block, a fixing seat fixed to the outer wall of the valve seat in a welded mode is arranged on the side opposite to the limiting vertical plate, and a first spring is fixedly sleeved on a shaft body of the first rotating shaft located inside the fixing seat.

The two side ports of the valve body are provided with flange connecting bodies, and connecting holes are formed in the flange connecting bodies.

The filter plate is fixedly connected with the connecting block through screws.

The inside bilateral symmetry of disk seat be provided with the buffering locating part of being connected with the valve rod, buffering locating part includes the spacing arc of notch towards the valve rod, the ball that sets up with the valve rod contact is inlayed to the notch of spacing arc, valve rod one side fixed connection piston rod is kept away from to spacing arc, the piston rod cup joints and fixes on the sleeve, the sleeve is inside to be inlayed and is equipped with the second spring with the piston rod contact.

The sliding groove is an annular groove body.

After adopting above-mentioned technical scheme, compare in prior art and have following beneficial effect:

1. through the matching arrangement of the connecting rod, the annular seat, the scraping blade and the like, dirt on the inner wall of the valve body can be scraped in the opening process of the valve plate, so that the cleaning effect is achieved;

2. the scraped dirt can be well retained in the inner cavity of the valve body by arranging the two filter plates, and the filtering effect of the valve body can be improved by the two filter plates;

3. can improve the stability of valve handle control through setting up second pivot, first pivot, spacing riser, slider, first spring etc. prevent that the conical gear on the first pivot that the valve handle is connected from taking place the pine to take place to take off with the conical gear on the valve rod, the regulation of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a partial structural schematic diagram of the present invention;

FIG. 3 is an enlarged view corresponding to section A of FIG. 1;

fig. 4 is an enlarged view of a portion B corresponding to fig. 2.

Description of reference numerals: the valve body 1, the flange connector 11, the connecting hole 111, the connecting block 12, the valve plate 2, the annular seat 21, the scraper 211, the connecting rod 22, the filter plate 3, the screw 31, the valve rod 4, the valve seat 5, the bevel gear 51, the first rotating shaft 52, the second rotating shaft 53, the valve handle 54, the limiting vertical plate 55, the sliding block 551, the sliding groove 56, the fixing seat 57, the first spring 571, the limiting arc-shaped plate 6, the ball 61, the piston rod 62, the sleeve 63 and the second spring 64.

Detailed Description

Referring to fig. 1 to 4, the technical solution adopted by the present embodiment is: the rotary valve comprises a valve body 1, a valve plate 2 is arranged in the valve body 1, two sides of the valve plate 2 are respectively hinged with connecting rods 22, the two connecting rods 22 are always arranged in parallel, the other end of each connecting rod 22 is hinged with a fixed annular seat 21, one side of the annular seat 21, which is far away from the valve plate 2, is fixedly connected with a scraping blade 211, the scraping head of the scraping blade 211 is in contact with the inner wall of the valve body 1, two ends of the valve body 1 are provided with filter plates 3, the filter plates 3 are detachably connected with a connecting block 12 fixed on the inner wall of the valve body 1, a valve rod 4 vertically penetrates out of the valve body 1 after being connected with the valve plate 2, a valve rod 4 positioned outside the valve body 1 is connected with a transmission device, the rotation device comprises a valve seat 5 arranged on the valve body 1, the valve rod 4 is fixedly connected with a conical gear 51 positioned inside the valve seat 5, a first rotating shaft 52 is arranged above the valve rod 4 and horizontally penetrates out of the valve seat 5, and the first rotating shaft 52 is connected with a second rotating shaft 53 through a conical gear 51, two bevel gears 51 are meshed and connected, a first rotating shaft 52 is located at one end outside a valve seat 5 and is fixedly connected with a valve handle 54, a limiting vertical plate 55 is arranged at the joint of the first rotating shaft 52 and the valve seat 5, the limiting vertical plate 55 is in sliding connection with a sliding groove 56 formed in the inner wall of the valve seat 5 through a sliding block 551, a fixing seat 57 fixed with the outer wall of the valve seat 5 in a welded mode is arranged on the opposite side of the limiting vertical plate 55, and a first spring 571 is fixedly sleeved on a shaft body of the first rotating shaft 52 located inside the fixing seat 57 in a sleeved mode.

The two side ports of the valve body 1 are provided with flange connecting bodies 11, and the flange connecting bodies 11 are provided with connecting holes 111.

Wherein, the filter plate 3 is fixedly connected with the connecting block 12 through a screw 31.

Wherein, 5 inside bilateral symmetry of disk seat be provided with the buffering locating part of being connected with valve rod 4, buffering locating part includes that the notch is towards the spacing arc 6 of valve rod 4, and the ball 61 that sets up and valve rod 4 contact is inlayed to the notch of spacing arc 6, and valve rod 4 one side fixed connection piston rod 62 is kept away from to spacing arc 6, and piston rod 62 cup joints to be fixed on sleeve 63, sleeve 63 is inside to be inlayed and to be equipped with the second spring 64 with the contact of piston rod 62.

Wherein, the chute 56 is an annular groove body.

The utility model discloses a theory of operation: firstly, the valve body can be installed at a designated pipeline connection position through a flange connecting piece and a related fixing piece according to actual use requirements, when a valve plate needs to be opened or closed, a user can twist a valve handle to drive a sliding block on a limiting vertical plate to slide in a sliding groove and drive a conical gear connected between a first rotating shaft and a second rotating shaft to rotate, a first spring on the first rotating shaft provides a certain buffering force for the rotation of the valve handle, the conical gear between the first rotating shaft and the second rotating shaft is meshed and connected with a conical gear on a valve rod, the valve rod rotates under the action of the conical gear, the valve rod moves between two buffering limiting parts in the rotating process, a second spring arranged in a sleeve of the buffering limiting part provides a certain buffering force for the valve rod, and when the valve rod drives the valve plate to rotate and open, the connecting rod correspondingly pushes an annular seat outwards in the pushing process, the doctor-bar will be synchronous again with valve body inner wall frictional contact to strike off the dirt of valve body inner wall, the dirt that drops moreover is detained between two filters, after an end time, can clear up the dirt through dismantling the filter.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. An improved flange butterfly valve, its characterized in that: the valve comprises a valve body, a valve plate is arranged in the valve body, two sides of the valve plate are respectively hinged with connecting rods, the two connecting rods are arranged in parallel all the time, the other end of each connecting rod is hinged with a fixed annular seat, one side of the annular seat, which is far away from the valve plate, is fixedly connected with a scraping blade, the scraping head of the scraping blade is arranged in contact with the inner wall of the valve body, two ends of the valve body are provided with filter plates, the filter plates are detachably connected with connecting blocks fixed on the inner wall of the valve body, the valve rod vertically penetrates out of the valve body after being connected with the valve plate, the valve rod positioned outside the valve body is connected with a transmission device, the transmission device comprises a valve seat arranged on the valve body, the valve rod is fixedly connected with a conical gear positioned inside the valve seat, a first rotating shaft is arranged above the valve rod and horizontally penetrates out of the valve seat, the first rotating shaft is connected with a second rotating shaft through the conical gear, the two conical gears are meshed, and one end of the first rotating shaft, which is positioned outside the valve seat, is fixedly connected with a valve handle, a limiting vertical plate is arranged at the joint of the first rotating shaft and the valve seat, the limiting vertical plate is in sliding connection with a sliding groove formed in the inner wall of the valve seat through a sliding block, a fixing seat fixed to the outer wall of the valve seat in a welded mode is arranged on the side opposite to the limiting vertical plate, and a first spring is fixedly sleeved on a shaft body of the first rotating shaft located inside the fixing seat.

2. The improved flange butterfly valve of claim 1, wherein: the two side ports of the valve body are provided with flange connecting bodies, and connecting holes are formed in the flange connecting bodies.

3. An improved flange butterfly valve as claimed in claim 1, wherein: the filter plate is fixedly connected with the connecting block through screws.

4. An improved flange butterfly valve as claimed in claim 1, wherein: the inside bilateral symmetry of disk seat be provided with the buffering locating part of being connected with the valve rod, buffering locating part includes the spacing arc of notch towards the valve rod, the ball that sets up with the valve rod contact is inlayed to the notch of spacing arc, valve rod one side fixed connection piston rod is kept away from to spacing arc, the piston rod cup joints and fixes on the sleeve, the sleeve is inside to be inlayed and is equipped with the second spring with the piston rod contact.

5. An improved flange butterfly valve as claimed in claim 1, wherein: the sliding groove is an annular groove body.