Improved feed valve

Abstract

The utility model discloses an improved feed valve, and relates to the technical field of feed valves. The valve comprises a valve body, the valve body comprises an upper valve body, a lower valve body, a driving box and a sealing cover, the sealing cover is fixedly installed at the bottom end of the upper valve body, the driving box is fixedly installed at the top end of the lower valve body, the sealing cover is detachably connected with the driving box, and a rotating shaft is rotatably installed in the driving box. A first connecting plate and a second connecting plate are fixedly mounted on the rotating shaft, a valve plate is detachably mounted at one end of the first connecting plate, a flow guide pipe is detachably mounted at one end of the second connecting plate, and a driving assembly is mounted at the bottom end of the driving box; according to the utility model, the flow guide pipe is arranged, and the flow guide pipe can prevent a medium from flowing into and being accumulated in the driving box during circulation, so that the medium is not in contact with a transmission structure in the driving box, the medium can be prevented from corroding the transmission structure in the driving box, and the service life of the device is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to feed valve technical field, concretely is a kind of improved feed valve. BACKGROUND

[0002] Disc feed valve, also called rotary valve, swing valve, valve plate movement is driven by rotating shaft, so that the movement force when valve opening and closing action is rotary motion, sealing pair uses hard alloy, ceramic and other wear-resistant materials, with good mechanical properties and wear resistance, especially suitable for solid particles, powder and other medium control;

[0003] Some disc feed valves in existing in use, medium is easy to accumulate in valve cavity (drive box) and not easy to clean, medium can be directly contacted with transmission structure in valve cavity, can corrode transmission structure in valve cavity, and further reduce the service life of valve body. UTILITY MODEL CONTENTS

[0004] To solve the problem that some disc feed valves in existing in use, medium is easy to accumulate in valve cavity (drive box) and not easy to clean, medium can be directly contacted with transmission structure in valve cavity, can corrode transmission structure in valve cavity, and further reduce the service life of valve body, the purpose of the utility model is to provide an improved feed valve.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: an improved feed valve, including valve body, the valve body includes upper valve body, lower valve body, drive box, sealing cover, the sealing cover is fixedly installed at the bottom end of upper valve body, the drive box is fixedly installed at the top end of lower valve body, the sealing cover is detachably connected with drive box, the drive box is rotatably installed with rotating shaft, the rotating shaft is fixedly installed with first connecting plate and second connecting plate, one end of first connecting plate is detachably installed with valve plate, one end of second connecting plate is detachably installed with flow guide pipe, and the flow guide pipe is communicated with upper valve body and lower valve body, and the bottom end of drive box is installed with drive assembly.

[0006] Preferably, the lower surface of sealing cover and the inner bottom end of drive box are fixedly installed with guide groove, and the flow guide pipe is slidably installed in the two guide grooves, and the valve plate is slidably installed in the guide groove on the sealing cover.

[0007] Compared with the prior art, the utility model has the beneficial effects that:

[0008] 1、In the utility model, by setting flow guide pipe, flow guide pipe can prevent medium from flowing into and accumulating in drive box when flowing, so that medium does not contact with transmission structure in drive box, thereby preventing medium from corroding transmission structure in drive box, and further improving the service life of the device.

[0009] 2. The utility model discloses, through setting up the guide slot, make the flow guide pipe and valve plate along the guide slot slide, and the guide slot can position the flow guide pipe and valve plate, prevent the flow guide pipe and valve plate from sliding excessively. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the drive box bottom structure schematic diagram of the utility model;

[0013] Figure 3 It is the drive box internal structure schematic diagram of the utility model;

[0014] Figure 4 It is the valve body section structure schematic diagram of the utility model;

[0015] Figure 5 It is the valve plate and flow guide pipe structure schematic diagram of the utility model.

[0016] In the drawing: 1, valve body;101, upper valve body;102, lower valve body;103, drive box;104, sealing cover;2, drive assembly;201, cylinder;202, fixed plate;203, sliding slot;204, bolt rod;205, locknut;3, rotating shaft;4, first connecting plate;5, valve plate;6, second connecting plate;7, flow guide pipe;8, guide slot. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described in the following with the drawings in the embodiments of the utility model, obviously, the described embodiment only some embodiments of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0018] Embodiment: as Figures 1-5The utility model provides an improved feed valve, including valve body 1, valve body 1 is the existing disc feed valve, valve body 1 includes upper valve body 101, lower valve body 102, drive box 103 (drive box 103 can also be understood as valve cavity), sealing cover 104, sealing cover 104 fixed mounting is at the bottom end of upper valve body 101, drive box 103 fixed mounting is at the top end of lower valve body 102, sealing cover 104 and drive box 103 detachable connection, can install sealing cover 104 on drive box 103 by the flange disc on sealing cover 104 and drive box 103 with bolt, can place sealing ring between the flange disc of sealing cover 104 and drive box 103, to improve the sealing property of valve body 1, can install valve body 1 to the adaptive equipment by the flange disc on upper valve body 101 and lower valve body 102 with bolt, valve body 1 passes through detachable setting, is convenient for the cleaning of drive box 103 inside, and the structure spare of drive box 103 inside is maintained and is replaced, rotatable mounting has rotary shaft 3 in drive box 103, rotary shaft 3 is fixedly installed with first connecting plate 4 and second connecting plate 6, and one end of first connecting plate 4 is detachably installed with valve plate 5 through bolt, one end of second connecting plate 6 is detachably installed with flow guide pipe 7 through bolt, and the upper and lower ends of flow guide pipe 7 are respectively in contact with the lower surface of sealing cover 104 and the inside bottom end of drive box 103, and flow guide pipe 7 can communicate with upper valve body 101 and lower valve body 102, and the bottom end of drive box 103 is installed with drive assembly 2, in use, rotary shaft 3 can be driven to rotate by drive assembly 2, rotary shaft 3 drives valve plate 5 and flow guide pipe 7 to rotate in drive box 103 through first connecting plate 4 and second connecting plate 6, to realize the flow and closure of valve body 1, in the open state of valve body 1, flow guide pipe 7 communicates with upper valve body 101 and lower valve body 102, so that the medium flows into through upper valve body 101, flows through flow guide pipe 7, and flows out through lower valve body 102, flow guide pipe 7 can prevent the medium from flowing into and accumulating in drive box 103 when flowing, so that the medium does not contact the transmission structure in drive box 103, thereby preventing the medium from corroding the transmission structure in drive box 103.

[0019] Upper valve body 101 and lower valve body 102 are located on the same center axis, and the inner diameters of upper valve body 101 and lower valve body 102 are the same, the upper surface of valve plate 5 is in contact with the lower surface of sealing cover 104, and the diameter of valve plate 5 is greater than the inner diameter of upper valve body 101, the aperture of upper valve body 101 is plugged and separated by valve plate 5, to realize the closing and opening of valve body 1.

[0020] The lower surface of the sealing cover 104 and the inner bottom end of the driving box 103 are fixedly provided with guide grooves 8, the flow guide pipe 7 is slidingly arranged in the two guide grooves 8, and the valve plate 5 is slidingly arranged in the guide groove 8 on the sealing cover 104, so that the flow guide pipe 7 and the valve plate 5 slide along the guide groove 8, and the guide groove 8 can also limit the flow guide pipe 7 and the valve plate 5 to prevent the flow guide pipe 7 and the valve plate 5 from sliding excessively.

[0021] The driving assembly 2 comprises a cylinder 201 which is detachably arranged at the bottom end of the driving box 103 through bolts, a bolt rod 204 is inserted through the output end of the cylinder 201, a lock nut 205 is threadedly arranged on the bolt rod 204, the bottom end of the rotating shaft 3 is fixedly provided with a fixed plate 202, a sliding groove 203 is formed in the fixed plate 202, and the bolt rod 204 is inserted through the sliding groove 203, the bolt rod 204 is connected with the fixed plate 202 by cooperation of the lock nut 205, and the bolt rod 204 can slide in the sliding groove 203 on the fixed plate 202, and the cylinder 201 drives the rotating shaft 3 to rotate through the fixed plate 202.

[0022] Principle: In use, the valve body 1 can be arranged on the adaptive equipment through the flanges on the upper valve body 101 and the lower valve body 102 by bolts, the cylinder 201 drives the rotating shaft 3 to rotate through the fixed plate 202, the rotating shaft 3 drives the valve plate 5 and the flow guide pipe 7 to rotate and slide in the driving box 103 along the guide groove 8 through the first connecting plate 4 and the second connecting plate 6, so as to realize the opening and closing of the valve body 1, the guide groove 8 can also limit the flow guide pipe 7 and the valve plate 5 to prevent the flow guide pipe 7 and the valve plate 5 from sliding excessively, in the open state of the valve body 1, the flow guide pipe 7 is communicated with the upper valve body 101 and the lower valve body 102, so that the medium flows into the upper valve body 101, flows through the flow guide pipe 7, and flows out through the lower valve body 102, the flow guide pipe 7 can prevent the medium from flowing into and accumulating in the driving box 103 when flowing, so that the medium does not contact the transmission structure in the driving box 103, thereby preventing the medium from corroding the transmission structure in the driving box 103, and the service life of the device is improved, the valve body 1 is detachably arranged, and the valve plate 5 and the flow guide pipe 7 are also detachably arranged, so that the valve body 1 can be regularly maintained, the wear condition of the structure in the driving box 103 can be checked, the inside of the driving box 103 can be conveniently cleaned, and the structure in the driving box 103 can be conveniently maintained and replaced.

[0023] The standard parts used in the application can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0024] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. An improved feed valve comprising a valve body (1), characterized in that: The valve body (1) comprises an upper valve body (101), a lower valve body (102), a drive box (103), and a sealing cover (104), the sealing cover (104) is fixedly installed at the bottom end of the upper valve body (101), the drive box (103) is fixedly installed at the top end of the lower valve body (102), the sealing cover (104) is detachably connected with the drive box (103), the drive box (103) is rotatably installed with a rotating shaft (3), the rotating shaft (3) is fixedly installed with a first connecting plate (4) and a second connecting plate (6), one end of the first connecting plate (4) is detachably installed with a valve plate (5), one end of the second connecting plate (6) is detachably installed with a flow guide pipe (7), the flow guide pipe (7) is in communication with the upper valve body (101) and the lower valve body (102), and the bottom end of the drive box (103) is installed with a drive assembly (2).

2. An improved feed valve as claimed in claim 1, wherein, The upper valve body (101) and the lower valve body (102) are located on the same center axis, and the inner diameters of the upper valve body (101) and the lower valve body (102) are the same.

3. An improved feed valve as claimed in claim 1, wherein, The upper surface of the valve plate (5) is in contact with the lower surface of the sealing cover (104), and the diameter of the valve plate (5) is greater than the inner diameter of the upper valve body (101).

4. An improved feed valve as claimed in claim 1, wherein, The lower surface of the sealing cover (104) and the inner bottom end of the drive box (103) are fixedly installed with guide grooves (8), the flow guide pipe (7) is slidingly installed in the two guide grooves (8), and the valve plate (5) is slidingly installed in the guide groove (8) on the sealing cover (104).

5. An improved feed valve as claimed in claim 1, wherein, The drive assembly (2) comprises a cylinder (201), and the cylinder (201) is detachably installed at the bottom end of the drive box (103).

6. An improved feed valve as claimed in claim 5, wherein, The output end of the cylinder (201) is penetratingly provided with a bolt rod (204), and the bolt rod (204) is threadedly installed with a lock nut (205).

7. An improved feed valve as claimed in claim 1 wherein, The bottom end of the rotating shaft (3) is fixedly installed with a fixed plate (202).

8. An improved feed valve as claimed in claim 7, wherein, The fixed plate (202) is provided with a sliding groove (203), and the bolt rod (204) is penetratingly provided in the sliding groove (203).

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