CN216519945U

CN216519945U - Pressure reducing valve with external anti-freezing structure

Info

Publication number: CN216519945U
Application number: CN202220054677.3U
Authority: CN
Inventors: 黄辉; 许良坤
Original assignee: Zhejiang Water Resources Technology Co ltd
Current assignee: Zhejiang Water Resources Technology Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-05-13
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a pressure reducing valve with an external anti-freezing structure, which comprises a pressure reducing valve, wherein the left end and the right end of the pressure reducing valve are both fixedly connected with a connecting pipe, one end of the connecting pipe, which is far away from the pressure reducing valve, is fixedly connected with a flange, one end of the flange, which is far away from the pressure reducing valve, is connected with a sealing ring in a sliding way, one end of the sealing ring, which is close to the pressure reducing valve, is fixedly connected with a connecting ring, and one end of the connecting ring, which is close to the pressure reducing valve, is fixedly connected with a tensioning ring, the first fixing frame is arranged at the lower end of the connecting pipe through the first fixing frame, the second fixing frame, the heating wire and the heat-insulating plate, during the second mount that will have the dead lever is inserted to first mount, the heated board contacts with the connecting tube, passes the gasket with the screw, first dead lever and fixes it in the connecting tube, opens the heater wire and heats the thawing to the connecting tube, avoids being frozen in the rivers of relief pressure valve inboard when meetting extremely cold weather.

Description

Pressure reducing valve with external anti-freezing structure

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with an external anti-freezing structure.

Background

The pressure reducing valve is a valve which can reduce the inlet pressure to a certain required outlet pressure by regulation and can automatically keep the outlet pressure stable by means of the energy of the medium, from the viewpoint of hydromechanics, the pressure reducing valve is a throttling element with changeable local resistance, i.e. the flow rate and the kinetic energy of the fluid are changed by changing the throttling area, so as to cause different pressure losses, thereby achieving the purpose of pressure reduction, then the fluctuation of the pressure behind the valve is balanced with the spring force by means of the regulation of a control and regulation system, so that the pressure behind the valve is kept constant within a certain error range, the pressure reducing valve is a special device for automatically reducing the working pressure of a pipeline, and can reduce the higher liquid pressure of the pipeline in front of the valve to the level required by the pipeline behind the valve, wherein the transmission medium is mainly water, and the pressure reducing valve is widely used in high-rise buildings and regions with overhigh water pressure of urban water supply pipelines, Mines and other occasions to ensure that each water point in the water supply system obtains proper service water pressure and flow.

Among the prior art, the relief pressure valve that uses in the water route on the market often can fix in the open air, and the northern weather is cold, and the position of relief pressure valve and connecting pipe easily freezes because of external environment when meetting extremely cold weather, leads to water unable through the relief pressure valve outflow, influences people and uses, and the flange and the water piping connection department at both ends often lead to leaking because sealed not in place about the relief pressure valve.

Disclosure of Invention

The present invention is directed to a pressure reducing valve having an external anti-freeze structure to solve the problems of the related art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a pressure reducing valve with an external anti-freezing structure comprises a pressure reducing valve, wherein connecting pipes are fixedly connected to the left end and the right end of the pressure reducing valve, a flange is fixedly connected to one end, away from the pressure reducing valve, of each connecting pipe, a sealing ring is connected to one end, away from the pressure reducing valve, of each flange in a sliding mode, a connecting ring is fixedly connected to one end, close to the pressure reducing valve, of each connecting ring, a tensioning ring is fixedly connected to one end, close to the pressure reducing valve, of each connecting ring, a first fixing frame is connected to the lower end, located at the right end, of the outer side of each connecting pipe in a sliding mode, a second fixing frame is connected to the upper end, located at the right end, of the outer side of each connecting pipe in a sliding mode, heating wires are fixedly connected to the upper end of the first fixing frame and the lower end of the second fixing frame, fixing rods are connected to the front end and the rear end of the second fixing frame in a sliding mode, the upper ends of the fixing rods are fixedly connected to an elastic spring, and the other end of the elastic spring is fixedly connected to the second fixing frame, the gasket is fixedly connected to the front end and the rear end of the first fixing frame, and one end, far away from the first fixing frame, of the gasket is spirally connected with a screw.

Preferably, the sealing ring is made of a rubber plate, the connecting ring penetrates through the flange, and the connecting ring is connected with the flange in a sliding mode.

Preferably, one end of the tensioning ring close to the pressure reducing valve is fixedly connected with a non-setting adhesive, and the non-setting adhesive and the tensioning ring are in sliding connection with the flange.

Preferably, the inner side of the tensioning ring is fixedly connected with a metal ring, and the metal ring is made of a stainless steel plate.

Preferably, the heating wire outside fixedly connected with heated board, and heated board all with first mount and second mount fixed connection, heated board and the connecting pipe sliding connection that is located the right-hand member.

Preferably, the fixing rods penetrate through the first fixing frame and the second fixing frame and are connected with the second fixing frame in a sliding mode.

Preferably, the screws penetrate through the gasket, the first fixing frame and the fixing rod, and are in threaded connection with the first fixing frame and the fixing rod.

The utility model has the beneficial effects that:

compared with the prior art, the first fixing frame is arranged at the lower end of the connecting pipe through the first fixing frame, the second fixing frame, the heating wire and the heat-insulating plate, the second fixing frame with the fixing rod is inserted into the first fixing frame, the heat-insulating plate is contacted with the connecting pipe, the screw penetrates through the gasket, the first fixing rod and the fixing rod to fix the screw in the connecting pipe, the heating wire is started to heat and unfreeze the connecting pipe, and water flow on the inner side of the pressure reducing valve is prevented from being frozen in extreme cold days;

compared with the prior art, the self-adhesive tape at one end of the tensioning ring is torn off through the sealing ring, the connecting ring, the metal ring and the self-adhesive tape, the tensioning ring with the self-adhesive tape is installed in the flange through the crowbar at the moment, the metal ring is fixed in the tensioning ring, the service life of the tensioning ring can be prolonged, the sealing ring is simultaneously fixed in the flange through the connecting ring, the sealing ring which is protruded and convenient to install is arranged, and the phenomenon that water seepage occurs at the joint of the flange and the water pipe during installation can be improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 at point A in accordance with the present invention;

FIG. 4 is a schematic view of the overall structure of the sealing ring of the present invention;

FIG. 5 is a schematic cross-sectional view of FIG. 4 according to the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1-5, the present invention provides a pressure reducing valve with an external anti-freezing structure, comprising a pressure reducing valve 1, wherein the left and right ends of the pressure reducing valve 1 are both fixedly connected with a connecting pipe 2, one end of the connecting pipe 2 away from the pressure reducing valve 1 is fixedly connected with a flange 3, one end of the flange 3 away from the pressure reducing valve 1 is slidably connected with a sealing ring 4, one end of the sealing ring 4 close to the pressure reducing valve 1 is fixedly connected with a connecting ring 5, one end of the connecting ring 5 close to the pressure reducing valve 1 is fixedly connected with a tensioning ring 6, the lower end of the outer side of the connecting pipe 2 at the right end is slidably connected with a first fixing frame 9, the upper end of the outer side of the connecting pipe 2 at the right end is slidably connected with a second fixing frame 10, the upper end of the first fixing frame 9 and the lower end of the second fixing frame 10 are fixedly connected with heating wires 11, the front and rear ends of the second fixing frame 10 are both slidably connected with fixing rods 13, the upper ends of the fixing rods 13 are fixedly connected with elastic springs 14, and the other end of the elastic spring 14 is fixedly connected with the second fixing frame 10, the front end and the rear end of the first fixing frame 9 are fixedly connected with gaskets 15, and one end, far away from the first fixing frame 9, of each gasket 15 is spirally connected with a screw 16.

The sealing ring 4 is made of a rubber plate, the connecting ring 5 penetrates through the flange 3, the connecting ring 5 is connected with the flange 3 in a sliding mode, the sealing effect of the sealing ring 4 made of rubber can be improved, the water seepage phenomenon is avoided, an adhesive sticker 7 is fixedly connected to one end, close to the pressure reducing valve 1, of the tensioning ring 6, the adhesive sticker 7 and the tensioning ring 6 are connected with the flange 3 in a sliding mode, the tensioning ring 6 is fixed through the adhesive sticker 7, the stability degree of the sealing ring 4 in the flange 3 is improved, a metal ring 8 is fixedly connected to the inner side of the tensioning ring 6, the metal ring 8 is made of a stainless steel plate, the metal ring 8 is made of a material which is not prone to deformation, the metal ring 8 is fixed in the tensioning ring 6 in an expanding mode, the service life of the tensioning ring 6 can be prolonged, a heat insulation plate 12 is fixedly connected to the outer side of the heating wire 11, and the heat insulation plate 12 is fixedly connected with the first fixing frame 9 and the second fixing frame 10, insulation board 12 and the connecting pipe 2 sliding connection that is located the right-hand member, insulation board 12 through the heater strip 11 outside, can prolong heater strip 11's heat, improve the length of time to connecting pipe 2 heating, dead lever 13 all runs through first mount 9 and second mount 10, and dead lever 13 and second mount 10 sliding connection, connect first mount 9 and second mount 10 through dead lever 13, can fix it in connecting pipe 2, screw 16 all runs through gasket 15, first mount 9 and dead lever 13, and screw 16 all with first mount 9 and dead lever 13 screwed connection, fix dead lever 13 in first mount 9 through screw 16, can fix the shape of first mount 9 and second mount 10 this moment, fix it in connecting pipe 2.

The working process is as follows: when the utility model is used, a first fixing frame 9 is placed at the lower end of a connecting pipe 2, a second fixing frame 10 with a fixing rod 13 is inserted into the first fixing frame 9 from top to bottom, at the moment, a heat insulation plate 12 is in contact with the connecting pipe 2, a screw 16 passes through a gasket 15, the first fixing rod 9 and the fixing rod 13 through a tool to be fixed in the connecting pipe 2, when the connection pipe 2 needs to be unfrozen, a heating wire 11 is started to heat and unfreeze the connecting pipe 2, the heat of the heating wire 11 can be prolonged through the heat insulation plate 12, the heating time of the connecting pipe 2 is prolonged, when a sealing ring 4 is installed, a non-setting adhesive 7 at one end of a tensioning ring 6 is torn down, at the moment, the tensioning ring 6 with the non-setting adhesive 7 is installed in a flange 3 through a crow bar, the non-setting adhesive 7 improves the fixing effect, a metal ring 8 is fixed in the tensioning ring 6, and the service life of the tensioning ring 6 can be prolonged, sealing washer 4 passes through clamping ring 5 to be fixed simultaneously in flange 3, sets up the protruding sealing washer 4 of just being convenient for the installation, and the phenomenon emergence that the infiltration appears in the junction of flange 3 and water pipe when can improving the installation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure reducing valve with an external antifreeze structure, comprising a pressure reducing valve, characterized in that: the left end and the right end of the pressure reducing valve are fixedly connected with connecting pipes, one end of each connecting pipe, far away from the pressure reducing valve, is fixedly connected with a flange, one end of each flange, far away from the pressure reducing valve, is slidably connected with a sealing ring, one end, close to the pressure reducing valve, of each sealing ring is fixedly connected with a connecting ring, one end, close to the pressure reducing valve, of each connecting ring is fixedly connected with a tensioning ring, the lower end, located at the right end, of the outer side of each connecting pipe is slidably connected with a first fixing frame, the upper end, located at the right end, of the outer side of each connecting pipe is slidably connected with a second fixing frame, the upper end of each first fixing frame and the lower end of each second fixing frame are fixedly connected with heating wires, the front end and the rear end of each fixing frame are both slidably connected with fixing rods, the upper ends of the fixing rods are fixedly connected with elastic springs, the other ends of the elastic springs are fixedly connected with gaskets, one end of the gasket, which is far away from the first fixing frame, is spirally connected with a screw.

2. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: the sealing ring is made of a rubber plate, the connecting ring penetrates through the flange, and the connecting ring is connected with the flange in a sliding mode.

3. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: one end of the tensioning ring close to the pressure reducing valve is fixedly connected with a non-setting adhesive, and the non-setting adhesive and the tensioning ring are in sliding connection with the flange.

4. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: the inner side of the tensioning ring is fixedly connected with a metal ring, and the metal ring is made of a stainless steel plate.

5. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: the heating wire outside fixedly connected with heated board, and heated board all with first mount and second mount fixed connection, heated board and the connecting pipe sliding connection who is located the right-hand member.

6. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: the fixed rods penetrate through the first fixing frame and the second fixing frame and are connected with the second fixing frame in a sliding mode.

7. The pressure reducing valve with an external antifreeze structure as claimed in claim 1, wherein: the screw all runs through gasket, first mount and dead lever, and the screw all with first mount and dead lever screwed connection.