CN216200852U

CN216200852U - Anti-return valve with heating function

Info

Publication number: CN216200852U
Application number: CN202122666182.4U
Authority: CN
Inventors: 林伟斌
Original assignee: Tianjin Fulilai Valve Co ltd
Current assignee: Tianjin Fulilai Valve Co ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-05
Anticipated expiration: 2031-11-03

Abstract

The utility model discloses an anti-backflow valve with a heating function, which comprises a one-way valve body, wherein a first arc-shaped plate and a second arc-shaped plate are arranged on the periphery of the one-way valve body, screw rods are arranged on the surfaces of one ends of the first arc-shaped plate and the second arc-shaped plate through reserved threaded holes, positioning grooves are formed in the surfaces of two ends of one side of the first arc-shaped plate, positioning rods are arranged on the surface of the top of the first arc-shaped plate through the reserved holes, connecting plates are arranged at two ends of one side of the second arc-shaped plate, fixing grooves are formed in the surfaces of the tops of the connecting plates, and PTC (positive temperature coefficient) ceramic heaters are arranged on the inner sides of the first arc-shaped plate and the second arc-shaped plate through the reserved grooves and screws. According to the backflow prevention valve with the heating function, the first arc-shaped plate and the second arc-shaped plate can be conveniently disassembled and assembled, and the first arc-shaped plate and the second arc-shaped plate are connected with the check valve body with good stability, so that the use requirements of personnel are met, and the backflow prevention valve is suitable for being widely popularized and used.

Description

Anti-return valve with heating function

Technical Field

The utility model relates to the technical field of valves, in particular to an anti-backflow valve with a heating function.

Background

The one-way valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards.

The common check valve has the following defects: 1. the difficult convenient dismouting of carrying on of heating mechanism, and the stability between heating mechanism and the valve is not good, 2, when being connected with the pipeline, the length of pipeline can be longer sometimes, needs to cut the pipeline, leads to the installation effectiveness of valve not good.

Disclosure of Invention

The utility model mainly aims to provide an anti-backflow valve with a heating function, which can effectively solve the problems in the background art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides an anti-return valve with heating function, includes the check valve body, the check valve body periphery is provided with an arc and No. two arcs, and an arc and No. two arc one end surfaces all install the screw rod through reserving the screw hole, the constant head tank has been seted up to an arc one side both ends surface, and an arc top surface is provided with the locating lever through the preformed hole, No. two arc one side both ends are provided with the connecting plate, and the connecting plate top surface has seted up the fixed slot, PTC ceramic heater is all installed through preformed groove and screw to an arc and No. two arc inboards.

Furthermore, first threads are formed on the surfaces of two ends in the check valve body, connecting pipes are arranged on two sides in the check valve body, second threads corresponding to the first threads are formed on the outer surfaces of the connecting pipes, sealing rings and screwing nuts are arranged on the peripheries of the connecting pipes, the screwing nuts are located on one sides of the sealing rings, and flanges are arranged at one ends of the connecting pipes; the screwing nut can tightly fix the sealing ring at the joint of the one-way valve body and the connecting pipe through a second thread so as to improve the sealing property between the one-way valve body and the connecting pipe.

Furthermore, the bottom of the positioning rod is positioned in the fixing groove.

Furthermore, the bottom in the fixed groove is connected with a strong magnetic magnet in a gluing way; the strong magnetic magnet can adsorb the locating lever.

Furthermore, the outer surfaces of the first arc-shaped plate and the second arc-shaped plate are electroplated with corrosion-resistant zinc layers.

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up the locating lever, strong magnetism magnet and screw rod, personnel can be peripheral at the check valve body with an arc and No. two arcs of plates laminating, and insert the connecting plate in the constant head tank, at this moment, personnel can insert the locating lever in the fixed slot, thereby make strong magnetism magnet adsorb the locating lever, and then fix an arc and No. two arcs at this valve periphery, afterwards, personnel's manual rotatory screw rod, make its one end support this valve, thereby improve the stability of an arc and No. two arcs and check valve body coupling, an arc and No. two arcs of this valve can be convenient dismouting, and both are better with this body coupling's of check valve stability, in order to satisfy personnel's user demand.

2. Through setting up the connecting pipe, nut and sealing washer of screwing, the connecting pipe can change its self extension length under the effect of a screw thread and No. two screw threads, and then makes the outside pipeline need not to cut just can be connected with the connecting pipe, and the nut of screwing can be through the junction at check valve body and connecting pipe with the inseparable fixing of sealing washer through No. two screw threads to improve the leakproofness between the two.

Drawings

Fig. 1 is a schematic view of the overall structure of an anti-backflow valve with a heating function according to the present invention.

Fig. 2 is a schematic view of a connection structure of a first arc-shaped plate and a second arc-shaped plate of the backflow prevention valve with a heating function.

Fig. 3 is a schematic cross-sectional structure view of a check valve body and a connecting pipe of the backflow prevention valve with a heating function according to the present invention.

Fig. 4 is an enlarged structural diagram of a part a of the backflow prevention valve with a heating function according to the present invention.

In the figure: 1. a check valve body; 2. a first arc plate; 3. a PTC ceramic heater; 4. a screw; 5. a seal ring; 6. screwing the nut; 7. a flange; 8. a second thread; 9. a second arc plate; 10. positioning a rod; 11. fixing grooves; 12. a ferromagnetic magnet; 13. a connecting plate; 14. positioning a groove; 15. a first thread; 16. and (4) connecting the pipes.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-4, an anti-return valve with heating function, including check valve body 1, 1 periphery of check valve body is provided with an arc 2 and No. two arcs 9, and an arc 2 and No. two arcs 9 one end surfaces all install screw rod 4 through reserving the screw hole, constant head tank 14 has been seted up to 2 one side both ends surfaces of an arc, and 2 top surfaces of an arc are provided with locating lever 10 through the preformed hole, No. two 9 one sides both ends of an arc are provided with connecting plate 13, and connecting plate 13 top surface has seted up fixed slot 11, No. 2 and No. two arcs 9 inboards all install PTC ceramic heater 3 through preformed groove and screw.

The check valve comprises a check valve body 1, a first thread 15 is formed in the surface of each of two ends of the check valve body 1, connecting pipes 16 are arranged on two sides of the check valve body 1, a second thread 8 corresponding to the first thread 15 is formed in the outer surface of each connecting pipe 16, a sealing ring 5 and a screwing nut 6 are arranged on the periphery of each connecting pipe 16, the screwing nut 6 is located on one side of the sealing ring 5, and a flange 7 is arranged at one end of each connecting pipe 16.

In this embodiment, as shown in fig. 1 and 3, the connecting pipe 16 may be connected to an external pipe through the flange 7.

Wherein, the bottom of the positioning rod 10 is positioned in the fixing groove 11.

In this embodiment, as shown in fig. 2 and 4, when the bottom of the positioning rod 10 is located in the fixing groove 11, the first arc-shaped plate 2 and the second arc-shaped plate 9 are connected to each other.

Wherein, the bottom in the fixed groove 11 is connected with a strong magnetic magnet 12 by gluing.

In this embodiment, as shown in fig. 2 and 4, the ferromagnetic magnet 12 attracts the positioning rod 10, thereby preventing the positioning rod 10 from being detached from the fixing groove 11.

And corrosion-resistant zinc layers are electroplated on the outer surfaces of the first arc-shaped plate 2 and the second arc-shaped plate 9.

In the embodiment, as shown in fig. 1 and 3, the corrosion-resistant zinc layer can make the first arc-shaped plate 2 and the second arc-shaped plate 9 have good corrosion-resistant zinc layers.

It should be noted that, the utility model is an anti-backflow valve with heating function, when working, a person can manually rotate the connecting pipe 16 according to the length of the external pipeline, so that the connecting pipe 16 changes the extending length thereof under the action of the first thread 15 and the second thread 8, and further the external pipeline can be connected with the connecting pipe 16 without cutting, so as to improve the installation efficiency of the valve, next, the person can attach the first arc-shaped plate 2 and the second arc-shaped plate 9 on the periphery of the one-way valve body 1, and insert the connecting plate 13 into the positioning slot 14, at this time, the person can insert the positioning rod 10 into the fixing slot 11, so that the strong magnet 12 adsorbs the positioning rod 10, further fix the first arc-shaped plate 2 and the second arc-shaped plate 9 on the periphery of the valve, and then, the person can manually rotate the screw rod 4, so that one end of the screw rod abuts against the valve, thereby improve the stability that an arc 2 and No. two arcs 9 and check valve body 1 are connected, and then make that PTC ceramic heater 3 can be steady carry out work to heat the operation to check valve body 1.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anti-return valve with heating function, includes check valve body (1), its characterized in that: the check valve body (1) periphery is provided with arc (2) and No. two arcs (9), and arc (2) and No. two arcs (9) one end surface all install screw rod (4) through reserving the screw hole, constant head tank (14) have been seted up to arc (2) one side both ends surface, and arc (2) top surface is provided with locating lever (10) through the preformed hole, No. two arcs (9) one side both ends are provided with connecting plate (13), and connecting plate (13) top surface has seted up fixed slot (11), PTC ceramic heater (3) have all been installed through preformed groove and screw to arc (2) and No. two arcs (9) inboards.

2. The backflow-preventing valve with the heating function as claimed in claim 1, wherein: screw thread (15) are seted up No. one to both ends surface in check valve body (1), and both sides are provided with connecting pipe (16) in check valve body (1), connecting pipe (16) surface is all seted up No. two screw threads (8) corresponding with screw thread (15), connecting pipe (16) periphery all is provided with sealing washer (5) and nut (6) of screwing, and nut (6) of screwing are located sealing washer (5) one side, connecting pipe (16) one end all is provided with flange (7).

3. The backflow-preventing valve with the heating function as claimed in claim 1, wherein: the bottom of the positioning rod (10) is positioned in the fixing groove (11).

4. The backflow-preventing valve with the heating function as claimed in claim 1, wherein: the bottom in the fixing groove (11) is connected with a strong magnetic magnet (12) in a gluing way.

5. The backflow-preventing valve with the heating function as claimed in claim 1, wherein: and the outer surfaces of the first arc-shaped plate (2) and the second arc-shaped plate (9) are electroplated with corrosion-resistant zinc layers.