CN210196584U

CN210196584U - Check valve with good corrosion resistance

Info

Publication number: CN210196584U
Application number: CN201921103448.0U
Authority: CN
Inventors: Keke Ge; 葛克克
Original assignee: Shangyu Group Co Ltd
Current assignee: Shangyu Group Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-03-27
Anticipated expiration: 2029-07-15

Abstract

The utility model relates to the technical field of valves, in particular to a check valve with good corrosion resistance, which comprises a device main body, wherein the tail end of the device main body is provided with a flange plate; still be equipped with anticorrosive protection shell in the device main part, anticorrosive protection shell includes the arc safety cover of two mutual symmetries, all is equipped with the first arc wall that is linked together with the external world on the adjacent side of two arc safety covers, and the inseparable welding has the arc limiting plate of two sets of mutual symmetries from top to bottom on the cell wall of first arc wall, states the fixed plate that still inseparable welding has two mutual symmetries on the arc safety cover. The utility model discloses easy to assemble realizes protecting the check valve in inside, can effectually avoid the check valve to be corroded, is favorable to prolonging the life of check valve.

Description

Check valve with good corrosion resistance

Technical Field

The utility model relates to the technical field of valves, specifically a check valve with good corrosion resisting property.

Background

The application of check valve is more extensive, often installs between two pipelines, makes two pipelines can communicate each other, and the check valve can also block the medium refluence simultaneously, but its corrosion resisting property of general check valve is relatively poor, uses the back for a long time, causes the check valve to be corroded easily, influences the normal use of check valve. In view of this, we propose a check valve having good corrosion resistance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve with good corrosion protection to it is relatively poor to solve its corrosion protection of the general check valve that proposes in the above-mentioned background art, after long-time the use, causes the check valve to be corroded easily, influences the problem of check valve normal use.

In order to achieve the above object, the utility model provides a following technical scheme:

a check valve with good corrosion resistance comprises a device main body, wherein a flange plate is arranged at the tail end of the device main body, and the flange plate and the device main body are of an integrally formed structure; the device main body is also provided with an anti-corrosion protection shell, the anti-corrosion protection shell comprises two arc protection covers which are symmetrical with each other, a first arc groove communicated with the outside is arranged on one side surface adjacent to the two arc protection covers, an upper group of arc limiting plates and a lower group of arc limiting plates which are symmetrical with each other are tightly welded on the groove wall of the first arc groove, the number of the arc limiting plates in each group is two, the two arc limiting plates in each group are symmetrically arranged from top to bottom, a second arc groove is arranged between the two arc limiting plates in each group, the device main body is positioned between the two groups of arc limiting plates, the flange plate is positioned in the second arc groove corresponding to the flange plate, two fixed plates which are symmetrical with each other are also tightly welded on the arc protection covers, two through holes which are symmetrical with each other and are communicated with the outside, and fastening bolts are arranged in the through holes in the fixed plates, which are opposite to each other, on the two arc-shaped protective covers, and fastening nuts are connected to the fastening bolts through threads.

Preferably, a first sealing gasket is tightly bonded on the inner arc-shaped side face of the arc-shaped limiting plate.

Preferably, a waterproof pad is further arranged on the groove wall of the first arc-shaped groove, and the position of the waterproof pad is opposite to the device main body.

Preferably, two adjacent side faces of the arc-shaped protection covers are provided with second sealing gaskets.

Preferably, a water-proof cushion is arranged on one side surface adjacent to the two opposite fixing plates.

Preferably, the fastening bolt is further sleeved with a flat washer, and the flat washer is located between the fastening nut and the fixing plate.

Preferably, the device main part and the surface of ring flange all are equipped with anticorrosive paint layer.

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

1. the utility model discloses an anticorrosive protection shell who sets up, the realization is with the device main part, the ring flange protection on ring flange and the external pipeline of this ring flange joint is in inside, thereby improve the corrosion resisting property of device main part, in addition through the waterproof pad that sets up, further guarantee that the device main part is difficult for being corroded, and through the first sealed pad that sets up, the sealed pad of second and water-proof pad, guarantee that the leakproofness between two arc safety covers is good, the corrosion resisting property of device main part is improved, it is relatively poor to have solved its corrosion resisting property of general check valve, after long-time use, cause the check valve to be corroded easily, influence the problem of check valve normal use.

2. The utility model discloses an anticorrosive paint layer who sets up improves the corrosion resisting property of device main part self, makes after long-time the use, and the device main part is difficult to be corroded, has solved its self corrosion resisting property of general check valve problem than poor.

Drawings

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

fig. 2 is an exploded view of embodiment 1 of the present invention;

FIG. 3 is an exploded view of the corrosion protection housing of the present invention;

fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1. a device main body; 10. a flange plate; 2. an anti-corrosion protective housing; 20. an arc-shaped protective cover; 21. a first arc-shaped slot; 22. an arc limiting plate; 221. a first gasket; 23. a second arc-shaped slot; 24. a waterproof pad; 25. a second gasket; 26. a fixing plate; 261. a through hole; 262. a water-insulating cushion; 27. fastening a bolt; 271. a flat washer; 272. fastening a nut; 3. and an anti-corrosion coating layer.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

A check valve with good corrosion resistance is disclosed, as shown in figures 1 to 3, and comprises a device main body 1, wherein a flange plate 10 is arranged at the tail end of the device main body 1, and the flange plate 10 and the device main body 1 are of an integrally formed structure, so that the structure is more firm and stable;

the device main body 1 is also provided with an anticorrosion protective casing 2, the anticorrosion protective casing 2 comprises two arc-shaped protective covers 20 which are symmetrical with each other, a first arc-shaped groove 21 communicated with the outside is arranged on one side surface adjacent to the two arc-shaped protective covers 20, an upper group of arc-shaped limiting plates 22 and a lower group of arc-shaped limiting plates 22 which are symmetrical with each other are tightly welded on the groove wall of the first arc-shaped groove 21, the number of the arc-shaped limiting plates 22 in each group is two, the two arc-shaped limiting plates 22 in each group are arranged in a vertical symmetry manner, a second arc-shaped groove 23 is arranged between the two arc-shaped limiting plates 22 in each group, the device main body 1 is arranged between the two groups of arc-shaped limiting plates 22, the flange plate 10 is arranged in the corresponding second arc-shaped groove 23, the arc-shaped protective covers 20 are also tightly welded with two fixing plates 26 which are symmetrical with each other, two through holes, fastening nuts 272 are further screwed on the fastening bolts 27, and the fixing of the fixing plates 26 on the two arc-shaped protection covers 20 is realized by screwing the fastening nuts 272 onto the fastening bolts 27, so that the arc-shaped protection covers 20 are fixed.

In this embodiment, arc safety cover 20's cross-section semicircular in shape, the cross-section of first arc wall 21 is also semicircular, and arc limiting plate 22's cross-section semicircular in shape guarantees to merge two arc safety covers 20 when being in the same place, just in time constitutes a complete hollow cylinder, and at this moment, two arc limiting plates 22 just in time that are just right to each other constitute the loop configuration of a completion, realize protecting device main part 1 and ring flange 10 inside.

Specifically, the distance between two arc limiting plates 22 in every group is greater than the thickness sum of two ring flanges 10, guarantees when the installation, can all overlap ring flange 10 and with the ring flange on the external pipeline of this ring flange 10 flange joint between two arc limiting plates 22, realizes protecting ring flange 10, avoids ring flange 10 to be corroded.

Further, a first sealing gasket 221 is tightly bonded to the inner arc-shaped side surface of the arc-shaped limiting plate 22, so that good sealing performance between the arc-shaped limiting plate 22 and an external pipeline is ensured.

In addition, the position just to device main part 1 on the cell wall of first arc wall 21 still is equipped with waterproof pad 24, all is equipped with the sealed pad 25 of second on the adjacent side of two arc safety covers 20, all is equipped with water-proof pad 262 on the adjacent side of two fixed plates 26 just right each other, guarantees that the leakproofness between two arc safety covers 20 is good, can effectually avoid device main part 1 to be corroded.

It should be noted that the fastening bolt 27 is further sleeved with a flat washer 271, and the flat washer 271 is located between the fastening nut 272 and the fixing plate 26, so as to ensure that the fastening nut 272 is not easy to fall off from the fastening bolt 27 when the fastening bolt 27 is tightened.

In this embodiment, through the anticorrosive protection casing 2 that sets up, the realization is protected device main part 1 and ring flange 10 in inside, in addition through the first sealed pad 221 that sets up, waterproof pad 24, the sealed pad 25 of second and separate the water pad 262 and guarantee that the leakproofness between two arc safety covers 20 is good, can effectually avoid device main part 1 to be corroded, it is relatively poor to have solved its corrosion resisting property of general check valve, after using for a long time, cause the check valve to be corroded easily, influence the problem of check valve normal use.

Example 2

In a specific operation, in order to further improve the corrosion resistance of the device body 1, therefore, the device body 1 is improved based on embodiment 1, as a preferred embodiment, as shown in fig. 4, the surfaces of the device body 1 and the flange plate 10 are both provided with an anticorrosive paint layer 3, the anticorrosive paint layer 3 is prepared by coating anticorrosive paint on the surfaces of the device body 1 and the flange plate 10, and it is ensured that the device body 1 and the flange plate 10 are not directly exposed to the outside, so that the corrosion resistance of the device body 1 is improved, and the problem that the corrosion resistance of a general check valve is poor is solved.

When the check valve with good corrosion resistance is used, after the flange plate 10 on the device main body 1 is connected with the flange plate flange on the external pipeline, two arc-shaped protective covers 20 are sleeved on the device main body 1, the device main body 1 is ensured to be positioned between two groups of arc-shaped limiting plates 22, the flange plate 10 on the device main body 1 and the flange plate on the external pipeline are both positioned between the two arc-shaped limiting plates 22 in each group, the fastening bolts 27 sequentially pass through the through holes 261 in the fixed plates 26, the flat washers 271 are sleeved on the fastening bolts 27 at the other side of the fixed plates 26, the fastening nuts 272 are screwed into the fastening bolts 27, the two fixed plates 26 are fixed, so that the arc-shaped protective covers 20 are fixed, at the moment, the device main body 1 and the flange plate 10 are protected inside, and the corrosion of the device main body 1 and the flange plate 10 can be effectively avoided, the problem of its anticorrosive performance of general check valve relatively poor, after long-time the use, cause the check valve to be corroded easily, influence check valve normal use is solved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A check valve with good corrosion resistance, comprising a device body (1), characterized in that: the tail end of the device main body (1) is provided with a flange plate (10), and the flange plate (10) and the device main body (1) are of an integrally formed structure; the device is characterized in that an anti-corrosion protection shell (2) is further arranged on the device main body (1), the anti-corrosion protection shell (2) comprises two arc-shaped protection covers (20) which are symmetrical to each other, a first arc-shaped groove (21) communicated with the outside is formed in one side face, which is adjacent to the two arc-shaped protection covers (20), two groups of arc-shaped limiting plates (22) which are symmetrical to each other are tightly welded on the groove wall of the first arc-shaped groove (21), the number of the arc-shaped limiting plates (22) in each group is two, the two arc-shaped limiting plates (22) in each group are symmetrically arranged up and down, a second arc-shaped groove (23) is arranged between the two groups of arc-shaped limiting plates (22) in each group, the flange (10) is arranged in the second arc-shaped groove (23) corresponding to the flange, two fixing plates (26) which are symmetrical to each other are tightly welded on the arc-shaped protection covers (20), be equipped with two through-holes (261) that are symmetrical each other and are linked together with the external world in fixed plate (26), two on arc safety cover (20) just right each other be equipped with fastening bolt (27) in through-hole (261) in fixed plate (26), fastening bolt (27) go up still threaded connection has fastening nut (272).

2. The check valve with good corrosion prevention according to claim 1, wherein: and a first sealing gasket (221) is tightly adhered to the inner arc-shaped side surface of the arc-shaped limiting plate (22).

3. The check valve with good corrosion prevention according to claim 1, wherein: a waterproof pad (24) is arranged on the wall of the first arc-shaped groove (21) at the position opposite to the device main body (1).

4. The check valve with good corrosion prevention according to claim 1, wherein: and a second sealing gasket (25) is arranged on one side surface adjacent to the two arc-shaped protection covers (20).

5. The check valve with good corrosion prevention according to claim 1, wherein: and water-proof cushions (262) are arranged on the adjacent side surfaces of the two fixing plates (26) which are opposite to each other.

6. The check valve with good corrosion prevention according to claim 1, wherein: the fastening bolt (27) is further sleeved with a flat washer (271), and the flat washer (271) is located between the fastening nut (272) and the fixing plate (26).

7. The check valve with good corrosion prevention according to claim 1, wherein: the device main part (1) and the surface of ring flange (10) all is equipped with anticorrosive paint layer (3).