CN210196601U

CN210196601U - Rust-proof check valve

Info

Publication number: CN210196601U
Application number: CN201921102240.7U
Authority: CN
Inventors: Jinqiao Lin; 林进巧
Original assignee: Yongjia Yonghong Valve Manufacturing Co Ltd
Current assignee: Yongjia Yonghong Valve Manufacturing 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 check valves, in particular to an antirust check valve, which comprises a device main body, wherein an antirust protective shell is arranged on the device main body, the antirust protective shell comprises two mutually symmetrical antirust protective covers, a first arc-shaped groove which is arranged along the width direction of the antirust protective covers and is communicated with the outside is arranged on one side surface adjacent to the two antirust protective covers, and a dry moisture absorption plate is tightly bonded on the bottom wall of a first groove; rectangular grooves communicated with the outside are formed in the top surface and the bottom surface of the antirust protective cover, and fastening bolts are connected in the two threaded holes which are opposite to each other in a threaded manner. The utility model discloses easy to assemble, also convenient to detach simultaneously protects the check valve, can effectually avoid the check valve to rust and influence its result of use.

Description

Rust-proof check valve

Technical Field

The utility model relates to a check valve technical field specifically is an antirust type check valve.

Background

The check valve is a valve capable of preventing liquid from flowing back, and is often used in life, but the general check valve does not have an anti-rust function, and the check valve is exposed outside for a long time, is easily rusted under the influence of rainwater, further influences the normal use of the check valve, and brings troubles to users. In view of this, we propose a rust-proof type check valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an antirust type check valve to solve general check valve that proposes in the above-mentioned background art and not have rust-resistant function, the check valve exposes for a long time outside, receives the influence of rainwater easily and rusts, further influences the problem of check valve normal use.

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

an antirust check valve comprises a device main body, wherein an antirust protective shell is arranged on the device main body, the antirust protective shell comprises two antirust protective covers which are symmetrical with each other, a first arc-shaped groove which is arranged along the width direction of the antirust protective covers and is communicated with the outside is arranged on one side surface adjacent to the two antirust protective covers, two second arc-shaped grooves which are bilaterally symmetrical are arranged on the groove wall of the first arc-shaped groove, the device main body is positioned in the first arc-shaped groove, a flange plate on the device main body is positioned in the second arc-shaped groove, a plurality of first grooves which are arranged at equal intervals are also arranged on the groove wall of the first arc-shaped groove between the two second arc-shaped grooves, the first grooves are communicated with the second arc-shaped grooves, and a dry moisture absorption plate is tightly bonded on the bottom wall of the first grooves; all be equipped with the rectangular channel that is linked together with the external world in the top surface and the bottom of rust-resistant safety cover, two mutual just right two in the rust-resistant safety cover all be equipped with two mutual symmetries on the cell wall of rectangular channel and with the external screw hole that is linked together, two mutual just right screw hole female connection has fastening bolt.

Preferably, the groove walls of the first arc-shaped grooves close to the groove openings at the tail ends of the first arc-shaped grooves are tightly bonded with sealing gaskets.

Preferably, a second groove communicated with the outside is further formed in the groove wall of the rectangular groove.

Preferably, the bottom wall of the second groove is provided with an inclined plane.

Preferably, the included angle between the inclined plane and the horizontal ground is 45 degrees.

Preferably, a sealing rubber pad is tightly bonded on one side face adjacent to the two antirust protective covers.

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

1. the utility model discloses a rust-resistant protecting sheathing who sets up realizes protecting the device main part in inside, can effectually avoid the device main part to receive the rainwater influence and rust, in addition through the dry moisture absorption plate that sets up, can absorb the inside moisture of rust-resistant safety cover, make rust-resistant safety cover inside keep a relatively dry environment, make the device main part be difficult for rustting more, it does not have rust-resistant function to have solved general check valve, the check valve exposes outside for a long time, receive the influence of rainwater easily and rust, further influence the problem of check valve normal use.

2. The utility model discloses a sealing rubber pad that sets up guarantees that the leakproofness between two rust-resistant safety covers is good, makes the rainwater be difficult for entering into the inside of rust-resistant safety cover, and it is relatively poor to have solved the leakproofness of general check valve safety cover, causes the rainwater to enter into the inside of safety cover easily, causes the rusty problem of check valve.

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 rust preventive protective case of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 3 according to the present invention;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1. a device main body; 2. an antirust protective shell; 20. an antirust protective cover; 21. a first arc-shaped slot; 22. a first groove; 221. drying the moisture absorption plate; 23. a second arc-shaped slot; 24. a gasket; 25. a rectangular groove; 251. a threaded hole; 252. fastening a bolt; 26. a second groove; 27. a bevel; 3. and sealing the rubber gasket.

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

An antirust check valve, as shown in fig. 1 to 4, comprises a device body 1, an antirust protective housing 2 is arranged on the device body 1, the antirust protective housing 2 comprises two mutually symmetrical antirust protective covers 20, a first arc-shaped groove 21 which is arranged along the width direction of the antirust protective covers 20 and is communicated with the outside is arranged on one side surface adjacent to the two antirust protective covers 20, two second arc-shaped grooves 23 which are bilaterally symmetrical are arranged on the groove wall of the first arc-shaped groove 21, the device body 1 is positioned in the first arc-shaped groove 21, a flange plate on the device body 1 and a flange plate on an external pipeline connected with the flange plate are positioned in the second arc-shaped grooves 23, so that the protection of the flange plate on the device body 1, the device body 1 and the flange plate on the external pipeline is realized, and the device body 1 is enabled, the flange plate on the device main body 1 and the flange plate on the external pipeline are not easy to rust;

a plurality of first grooves 22 which are arranged at equal intervals are further formed in the wall of the first arc-shaped groove 21 between the two second arc-shaped grooves 23, the first grooves 22 are communicated with the second arc-shaped grooves 23, a drying moisture absorption plate 221 is tightly bonded to the bottom wall of the first grooves 22, the drying moisture absorption plate 221 is made of a silica gel material, the silica gel material has good moisture absorption performance, can absorb certain moisture, and ensures that the inside of the first grooves 22 is in a relatively dry environment;

all be equipped with the rectangular channel 25 that is linked together with the external world in the top surface and the bottom of rust-resistant safety cover 20, all be equipped with two mutual symmetries and the screw hole 251 that is linked together with the external world on the cell wall of two rectangular channel 25 just right each other in two rust-resistant safety covers 20, two screw hole 251 female connection just right each other have fastening bolt 252, realize fixing two rust-resistant safety covers 20 through using fastening bolt 252, guarantee that its structure is more firm, easy to assemble, also convenient to detach simultaneously.

In this embodiment, the rust-proof protective housing 2 is made of stainless steel, which is not easy to rust, has high rigidity, and is not easy to damage after collision.

Specifically, when the two rust-proof protection covers 20 are fixed by using the fastening bolts 252, the two rust-proof protection covers 20 are just combined together, the two first arc-shaped grooves 21 just form a complete through hole, and the two second arc-shaped grooves 23 just form a complete annular groove, so that the device body 1 and the flange on the device body 1 are protected inside.

Further, all closely bond on the cell wall that first arc wall 21 is close to its terminal notch position and have sealed the pad 24, when ring flange on the ring flange of device main part 1 and the external pipeline flange joint, the ring flange on the ring flange of device main part 1 this moment and the external pipeline of this ring flange joint all are located second arc wall 23, external pipeline just in time is in the position that first arc wall 21 is close to its notch, sealed pad 24 just in time laminates each other with the surface of external pipeline, thereby guarantee that the leakproofness between the cell wall of external pipeline and first arc wall 21 is good.

In addition, still be equipped with the second recess 26 that is linked together with the external world on the cell wall of rectangular groove 25, be equipped with inclined plane 27 on the diapire of second recess 26, contained angle between inclined plane 27 and the level ground is 45 degrees, through rectangular groove 25 and the second recess 26 that sets up, can alleviate the weight of rust-resistant safety cover 20, convenient transport, and simultaneously, through the inclined plane 27 that sets up, guarantee can not ponding in the rectangular groove 25, and in case when there is ponding, ponding can flow down along inclined plane 27.

In this embodiment, through the rust-resistant safety cover 20 that sets up, the realization is with the ring flange protection on device main part 1 and the device main part 1 inside to avoid device main part 1 directly to expose outside, receive the influence of rainwater and the serious rusty condition of appearing, solved general check valve and not have rustproof function, the check valve exposes outside for a long time, receives the influence of rainwater easily and rusts, further influences the problem of check valve normal use.

Example 2

In the concrete operation, in order to guarantee that the leakproofness between two rust-resistant safety covers 20 is good, therefore, make the improvement to rust-resistant safety cover 20 on the basis of embodiment 1, as a preferred embodiment, as shown in fig. 5, all closely bond on the adjacent side of two rust-resistant safety covers 20 has sealing rubber pad 3, when using fastening bolt 252 fixed with two rust-resistant safety covers 20, two sealing rubber pad 3's surface just in time pastes together, thereby guarantee that the rainwater can not enter into between two rust-resistant safety covers 20, it is relatively poor to have solved the leakproofness of general check valve safety cover, cause the rainwater to enter into the inside of safety cover easily, cause the rusty problem of check valve.

When the anti-rust check valve is used, the flange plate on the device main body 1 is connected with the flange plate on the external pipeline by a flange, then the two anti-rust protection covers 20 are sleeved on the device main body 1, the position of the device main body 1 between the two second arc-shaped grooves 23 is ensured, the flange plate on the device main body 1 and the flange plate on the external pipeline are positioned in the second arc-shaped grooves 23, then the two anti-rust protection covers 20 are fixed by the fastening bolt 252, at the moment, the sealing gasket 24 is just attached to the surface of the external pipeline, the surfaces of the two sealing rubber gaskets 3 are also just attached together, the flange plate on the device main body 1 and the flange plate on the external pipeline are protected inside, the flange plate on the device main body 1 and the flange plate on the external pipeline are prevented from being directly exposed outside, and the serious, the problem of general check valve do not have rust-resistant function, the check valve exposes for a long time, receives the influence of rainwater easily and rusts, further influences the 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 rust-proof check valve, includes device main part (1), its characterized in that: the device is characterized in that an antirust protective shell (2) is arranged on the device main body (1), the antirust protective shell (2) comprises two antirust protective covers (20) which are symmetrical to each other, a first arc-shaped groove (21) which is arranged along the width direction of the antirust protective covers (20) and is communicated with the outside is arranged on one side surface adjacent to the two antirust protective covers (20), two second arc-shaped grooves (23) which are bilaterally symmetrical are arranged on the groove wall of the first arc-shaped groove (21), the device main body (1) is positioned in the first arc-shaped groove (21), a flange plate on the device main body (1) is positioned in the second arc-shaped groove (23), a plurality of first grooves (22) which are arranged at equal intervals are also arranged on the groove wall of the first arc-shaped groove (21) between the two second arc-shaped grooves (23), and the first grooves (22) are communicated with the second arc-shaped grooves (23), a drying and moisture absorption plate (221) is tightly adhered to the bottom wall of the first groove (22); all be equipped with rectangular channel (25) that are linked together with the external world in the top surface and the bottom surface of rust-resistant safety cover (20), two in rust-resistant safety cover (20) just right two each other all be equipped with two screw hole (251) that mutual symmetry just is linked together with the external world on the cell wall of rectangular channel (25), just right two each other screw hole (251) female connection has fastening bolt (252).

2. The rust inhibitive check valve according to claim 1, characterized in that: sealing gaskets (24) are tightly bonded on the groove wall of the first arc-shaped groove (21) close to the groove opening at the tail end of the first arc-shaped groove.

3. The rust inhibitive check valve according to claim 1, characterized in that: and a second groove (26) communicated with the outside is also formed in the wall of the rectangular groove (25).

4. The rust inhibitive check valve according to claim 3, characterized in that: the bottom wall of the second groove (26) is provided with an inclined surface (27).

5. The rust inhibitive check valve according to claim 4, characterized in that: the included angle between the inclined plane (27) and the horizontal ground is 45 degrees.

6. The rust inhibitive check valve according to claim 1, characterized in that: and sealing rubber pads (3) are tightly bonded on one adjacent side face of the two antirust protective covers (20).