CN216813100U

CN216813100U - Pressure reducing valve with preheating expansion structure

Info

Publication number: CN216813100U
Application number: CN202122729327.0U
Authority: CN
Inventors: 王烨
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-06-24
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a pressure reducing valve with a preheating expansion structure, which comprises a telescopic body and a drainage mechanism, wherein an upper fixing plate is fixedly arranged at the upper end of the telescopic body, a screw rod is fixedly arranged at the center of the upper end surface of the upper fixing plate, a lower sealing mechanism is sleeved at the lower end of the telescopic body in a threaded manner and comprises a lower sealing plate, a threaded head is fixedly arranged at the center of the upper end surface of the lower sealing plate, an extension head is fixedly arranged at the center of the upper end surface of the threaded head, and a sealing ring is movably sleeved on the head body of the extension head. The utility model discloses a pressure reducing valve with a preheating expansion structure, which is convenient to disassemble, simple to use and convenient to open and close.

Description

Pressure reducing valve with preheating expansion structure

Technical Field

The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with a preheating expansion structure.

Background

The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and automatically keeps the outlet pressure stable by the energy of a medium, and from the viewpoint of hydromechanics, the pressure reducing valve is a throttling element with changeable local resistance, namely, the flow rate and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction, and then the fluctuation of the pressure behind the valve is balanced with the spring force by the regulation of a control and regulation system, so that the pressure behind the valve is kept constant within a certain error range.

A prior patent (CN211449784U) discloses a pressure reducing valve, which includes a valve body and a valve cover covering the valve body; the valve body is provided with an air inlet and an air outlet, a valve port communicated with the air inlet and the air outlet is arranged in the valve body, and a main pressure regulating cavity and an auxiliary pressure regulating cavity are also arranged in the valve body; a main diaphragm is arranged in the main pressure regulating cavity in a pressing manner, the main diaphragm divides the main pressure regulating cavity into an upper cavity and a lower cavity, a valve rod is fixed on the main diaphragm, and a valve core for controlling the opening and closing of a valve port is installed on the valve rod; the auxiliary pressure regulating cavity is internally provided with a first auxiliary diaphragm, a second auxiliary diaphragm and a diaphragm seat, the valve cover is provided with an operating rod, and the operating rod penetrates through the valve cover to be abutted and matched with the diaphragm seat; the upper cavity is communicated with the air inlet through the air inlet flow channel, the throttle hole is arranged in the air inlet flow channel, the valve body is provided with a mounting hole communicated with the air inlet flow channel, the mounting hole is arranged between the throttle hole and the air inlet, the filter element is filled in the mounting hole, and the valve body is provided with a plug for sealing the mounting hole. However, although this device is convenient to use, it is inconvenient when the valve is closed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pressure reducing valve with a preheating expansion structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: a pressure reducing valve with a preheating expansion structure comprises a telescopic body and a drainage mechanism, wherein an upper fixing plate is fixedly arranged at the upper end of the telescopic body, a screw rod is fixedly arranged at the center of the upper end face of the upper fixing plate, and a lower sealing mechanism is sleeved at the lower end of the telescopic body in a threaded manner;

the lower sealing mechanism comprises a lower sealing plate, a threaded head is fixedly arranged at the center of the upper end face of the lower sealing plate, an extension head is fixedly arranged at the center of the upper end face of the threaded head, and a sealing ring is movably sleeved on the extension head.

As a further description of the above technical solution:

the telescopic body comprises a middle rubber ring, and an upper fixing seat and a lower connecting seat are fixedly arranged at the upper end and the lower end of the middle rubber ring respectively.

As a further description of the above technical solution:

the lower sealing mechanism is parallel to the upper fixing plate.

As a further description of the above technical solution:

the inside of the telescopic body is provided with preheating expansion liquid.

As a further description of the above technical solution:

and a blocking block is fixedly arranged at the center of the lower end face of the lower sealing plate.

As a further description of the above technical solution:

a plurality of blade rings are fixedly sleeved on the ring body of the telescopic body at equal intervals.

As a further description of the above technical solution:

a triangular plate is sleeved on the body of the screw in a threaded manner.

As a further description of the above technical solution:

the inside of drainage mechanism is provided with the through-hole.

The utility model has the following beneficial effects:

when the pressure reducing valve with the preheating expansion structure is used, the expansion body can expand through the preheating expansion liquid in the expansion body, so that the expansion body can expand, the through hole is automatically blocked by the blocking block, and the pressure reducing valve has the functions of automatically closing and opening.

According to the pressure reducing valve with the preheating expansion structure, when the pressure reducing valve is used, the middle rubber ring is made of rubber, so that the middle rubber ring can stretch when preheating expansion liquid expands, and the pressure reducing valve is more convenient to use.

According to the pressure reducing valve with the preheating expansion structure, when the pressure reducing valve is used, the lower sealing mechanism is an integral body, the sealing capacity is high, the pressure reducing valve is more convenient to disassemble, and preheating expansion liquid is convenient to add.

According to the pressure reducing valve with the preheating expansion structure, when the pressure reducing valve is used, the sealing effect can be further enhanced through the sealing ring, so that the lower sealing mechanism is higher in sealing performance.

Drawings

FIG. 1 is a schematic axial view of a pressure reducing valve with a pre-heated expansion structure according to the present invention;

FIG. 2 is a schematic front cross-sectional view of a telescopic body of a pressure reducing valve with a preheating expansion structure according to the present invention;

FIG. 3 is a schematic axial view of a lower seal mechanism of a pressure reducing valve with a preheating expansion structure according to the present invention;

fig. 4 is a schematic axial view of a flow guiding mechanism of a pressure reducing valve with a preheating expansion structure according to the present invention.

Illustration of the drawings:

1. a telescopic body; 2. a screw; 3. a set square; 4. an upper fixing plate; 5. a blade ring; 6. a lower sealing mechanism; 7. blocking; 8. a drainage mechanism; 9. a through hole; 10. an upper fixing base; 11. a middle rubber ring; 12. a lower connecting seat; 13. preheating an expansion liquid; 14. a seal ring; 15. an extension head; 16. a screw head; 17. and a lower sealing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: the utility model provides a take expansion structure's relief pressure valve of preheating, includes the flexible body 1 and drainage mechanism 8, and the fixed upper fixed plate 4 that is provided with in upper end of the flexible body 1, the fixed screw rod 2 that is provided with in up end center department of upper fixed plate 4, the lower extreme screw thread of the flexible body 1 has cup jointed sealing mechanism 6 down, and sealing mechanism 6 plays sealed effect down.

Lower sealing mechanism 6 includes lower sealing plate 17, and the fixed screw thread head 16 that is provided with in up end center department of lower sealing plate 17, the fixed extension head 15 that is provided with in up end center department of screw thread head 16, and the head of extension head 15 is on one's body the movable sleeve be equipped with sealing washer 14, and sealing washer 14 is used for strengthening the effect of leakproofness.

The telescopic body 1 comprises a middle rubber ring 11, an upper fixing seat 10 and a lower connecting seat 12 are fixedly arranged at the upper end and the lower end of the middle rubber ring 11 respectively, and the middle rubber ring 11 plays a telescopic role.

Lower sealing mechanism 6 is parallel to each other with upper fixed plate 4, the inside of the flexible body 1 is provided with preheats inflation liquid 13, preheat inflation liquid 13 and be used for preheating and make the flexible effect of the flexible body 1, the lower terminal surface center department of lower closing plate 17 is fixed and is provided with sprue 7, sprue 7 is used for blockking up the effect of through-hole 9, it is fixed cover that equidistant form is equipped with a plurality of blade rings 5 on the ring body of the flexible body 1, the threaded sleeve is equipped with set-square 3 on the pole body of screw rod 2, the inside of drainage mechanism 8 is provided with through-hole 9.

The working principle is as follows: at first inside the relief pressure valve this equipment, then use, when external liquid temperature was too high when using, see through the telescopic body 1 and can heat preheating expansion liquid 13, can expand after preheating expansion liquid 13 and heating, can make the telescopic body 1 extension after preheating expansion liquid 13 inflation, the sprue 7 can move down after the telescopic body 1 extension, the sprue 7 moves down to the inside back of through-hole 9, thereby can plug up through-hole 9 and play the effect of closing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an expansion structure's relief pressure valve is preheated in area, includes telescopic body (1) and drainage mechanism (8), its characterized in that: an upper fixing plate (4) is fixedly arranged at the upper end of the telescopic body (1), a screw rod (2) is fixedly arranged at the center of the upper end face of the upper fixing plate (4), and a lower sealing mechanism (6) is sleeved at the lower end of the telescopic body (1) in a threaded manner;

the lower sealing mechanism (6) comprises a lower sealing plate (17), a threaded head (16) is fixedly arranged at the center of the upper end face of the lower sealing plate (17), an extension head (15) is fixedly arranged at the center of the upper end face of the threaded head (16), and a sealing ring (14) is movably sleeved on the head body of the extension head (15).

2. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: the telescopic body (1) comprises a middle rubber ring (11), and an upper fixing seat (10) and a lower connecting seat (12) are fixedly arranged at the upper end and the lower end of the middle rubber ring (11) respectively.

3. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: the lower sealing mechanism (6) is parallel to the upper fixing plate (4).

4. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: the expansion body (1) is internally provided with a preheating expansion liquid (13).

5. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: and a blocking block (7) is fixedly arranged at the center of the lower end face of the lower sealing plate (17).

6. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: the ring body of the telescopic body (1) is fixedly sleeved with a plurality of blade rings (5) at equal intervals.

7. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: a triangular plate (3) is sleeved on the body of the screw (2) in a threaded manner.

8. The pressure reducing valve with a preheating expansion structure according to claim 1, wherein: and a through hole (9) is formed in the drainage mechanism (8).