CN220470637U

CN220470637U - Pressure reducing valve

Info

Publication number: CN220470637U
Application number: CN202322165240.4U
Authority: CN
Inventors: 刘富德
Original assignee: Taizhou Weikang Hvac Technology Co ltd
Current assignee: Taizhou Weikang Hvac Technology Co ltd
Priority date: 2023-08-13
Filing date: 2023-08-13
Publication date: 2024-02-09
Anticipated expiration: 2033-08-13

Abstract

The utility model relates to the field of design valves, in particular to a pressure reducing valve, which comprises a valve body, wherein the valve body is provided with a water inlet and a water outlet, a pressure regulating valve core is arranged in the middle of the valve body, and the pressure regulating valve core is provided with a locking screw, a regulating hand wheel, a valve cover, a regulating rod, a regulating disc, a pressure regulating spring and a stop assembly with a isolating membrane from top to bottom along the axis; the pressure regulating spring is arranged between the regulating disc and the isolating membrane, and the regulating disc is driven to slide up and down by rotating the regulating rod to regulate the compression amount of the pressure regulating spring; the upper part of the valve cover is provided with positioning teeth which are matched with the inner clamping teeth of the adjusting hand wheel to position and lock the adjusting position. The pressure reducing valve can quickly release limit downwards and upwards when the preset value and the on-site value are regulated in a factory, is convenient to lock downwards, is simple and quick to regulate, is safe and effective to use, and is more accurate in pressure regulation through a dense limit structure. The product has novel structure, practical design and market popularization value.

Description

Pressure reducing valve

Technical Field

The utility model relates to the field of design valves, in particular to a pressure reducing valve.

Background

The pressure reducing valve is used for adjusting the pressure of the water supply system, so that the water pressure is reduced to a reasonable value, and damage to building pipelines and connecting equipment caused by fluctuation or overlarge water pressure is prevented. The pressure reducing valve can ensure hydraulic balance without external power input, improves the stability of a pipeline system, and is widely applied to the pipeline system.

A similar patent such as publication number CN208595270U, a pressure reducing valve, includes a valve body with a water inlet channel and a water outlet channel, and a pressure regulating valve core is arranged in the valve body; the pressure regulating valve core reaches motion balance under the interaction of the front and back water medium pressure and the internal spring, so that the water pressure of the discharged water is regulated.

When leaving the factory, the spring pressure values are different, the precision of the pressure value of the pressure reducing valve leaving the factory is not high, and the adjustment operation is troublesome; in the actual use process, the output pressure of the pressure reducing valve needs to be finely adjusted according to the specific pipeline condition, but a tool is needed to adjust the numerical value of the pressure reducing valve, and the operation is complicated; subsequent shaking or non-professional adjustments without the locking structure will result in a change in set pressure, which adversely affects the system.

Disclosure of Invention

Aiming at the existing situation, the utility model provides the pressure reducing valve, which can quickly and conveniently adjust the pressure value of the pressure reducing valve, does not need tools, has simple limiting and locking structure, can effectively prevent misoperation in the using process, and is safer and more reliable to use.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the pressure reducing valve comprises a valve body, wherein the valve body is provided with a water inlet and a water outlet, a pressure regulating valve core is arranged in the middle of the valve body, and a locking screw, a regulating hand wheel, a valve cover, an adjusting rod, a regulating disc, a pressure regulating spring and a stop assembly with a isolating membrane are arranged on the pressure regulating valve core from top to bottom along an axis; the pressure regulating spring is arranged between the regulating disc and the isolating membrane, and the regulating disc is driven to slide up and down by rotating the regulating rod so as to regulate the compression amount of the pressure regulating spring; and the upper part of the valve cover is provided with positioning teeth which are matched with the inner clamping teeth of the adjusting hand wheel to position and lock the adjusting position.

The scheme of the utility model can also be as follows:

the adjusting hand wheel is limited between the locking screw and the valve cover and can slide up and down along the adjusting rod; when the adjusting hand wheel slides upwards to the top, the inner latch is separated from the positioning teeth to limit.

The outer side of the adjusting hand wheel is provided with a portable annular groove and a vertical groove; wherein the portable annular groove is used for adjusting the rod to slide up and down.

The middle of the adjusting hand wheel is provided with a middle inner hole with an inner hexagonal structure, and the upper part of the adjusting rod is provided with a hexagonal structure; the middle inner hole is in limit fit with the hexagonal structure.

The filter screen is wrapped on the cut-off assembly and used for blocking impurities in the water inlet.

And a pressure gauge connector is arranged at the upper end of the water outlet of the valve body.

According to the pressure reducing valve, through the cooperation of the limiting adjusting hand wheel and the adjacent parts, when the preset value and the on-site value are adjusted in a factory, the limiting is quickly removed, the adjustment is simple, the locking is convenient, the use is safer and more effective, the pressure adjustment is more accurate through a dense limiting structure, the product structure is novel, the design is practical, and the market popularization value is realized.

Drawings

FIG. 1 is a schematic overall cross-sectional view of a pressure relief valve of the present utility model;

FIG. 2 is a schematic diagram of a three-dimensional exploded structure of the pressure reducing valve of the present utility model;

fig. 3 is a schematic perspective view of a regulating hand wheel of the pressure reducing valve.

In the figure: valve body 1, water inlet 10, delivery port 11, manometer interface 12, air-vent valve core 2, regulating hand wheel 20, valve gap 21, regulation pole 22, regulating disk 23, pressure regulating spring 24, positioning tooth 25, interior card tooth 26, filter screen 27, intermediate hole 28, locking screw 29, portable annular groove 30, vertical recess 31, hexagonal structure 32, barrier film 33, stop assembly 34.

Detailed Description

The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Preferred embodiments of the present utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 3, a pressure reducing valve comprises a valve body 1, wherein the valve body 1 is provided with a water inlet 10 and a water outlet 11, a pressure regulating valve core 2 is arranged in the middle of the valve body 1, and the pressure regulating valve core 2 is provided with a locking screw 29, an adjusting hand wheel 20, a valve cover 21, an adjusting rod 22, an adjusting disc 23, a pressure regulating spring 24 and a stop component 34 with a separation membrane 33 from top to bottom along an axis; the pressure regulating spring 24 is arranged between the regulating disc 23 and the isolating membrane 33, and the regulating rod 22 is rotated to drive the regulating disc 23 to slide up and down so as to regulate the compression amount of the pressure regulating spring 24; the upper part of the valve cover 21 is provided with positioning teeth 25, the positioning teeth 25 are matched with inner clamping teeth 26 of the adjusting hand wheel 20 for positioning, and the adjusting position is locked.

The pressure reducing valve adjusts the position of the valve cap 21 by rotating the adjusting lever 22, adjusts the compression amount of the pressure adjusting spring 24, and further adjusts the pressure value of the pressure reducing valve. The adjusting rod 22 and the adjusting disc 23 are fixedly connected through threads. The shut-off assembly 34 is the lower end portion of the pressure regulating valve core 2 and is a shut-off passage for the medium from the water inlet 10 to the water outlet 11. The isolation film 33 is made of rubber, and has the functions of isolation, sealing, deformation and the like. The valve cap 21 is pressed against the partition film 33 so that the pressure regulating valve core 2 is sealed with the valve body 1.

The positioning teeth 25 on the upper part of the valve cover 21 are densely arranged in a circle, so that more accurate pressure positioning is facilitated, the inner clamping teeth 26 of the same adjusting hand wheel 20 are matched with the positioning, locking and adjusting positions, a plurality of inner clamping teeth 26 are arranged in the adjusting hand wheel 20, stress is enhanced during locking, and misoperation is prevented.

The adjusting hand wheel 20 is limited between the locking screw 29 and the valve cover 21 and can slide up and down along the adjusting rod 22; when the adjusting hand wheel 20 slides upwards, the inner clamping teeth 26 are separated from the positioning teeth 25. The distance a between the locking screw 29 and the valve cover 21 is not smaller than the matched length of the positioning teeth 25 and the inner clamping teeth 26, when the adjusting hand wheel 20 slides upwards, the adjusting hand wheel 20 is separated from the structural limit of the valve cover 21 and can rotate, and the adjusting rod 22 is driven to rotate together while rotating; after the adjusting hand wheel 20 is adjusted, the adjusting hand wheel is directly pressed down along the adjusting rod 22, and the limiting between the adjusting hand wheel 20 and the valve cover 21 can be completed by clamping the inner clamping teeth 26 and the positioning teeth 25 again. The pressure reducing valve is regulated simply and quickly without unscrewing the locking screw 29.

The outer side of the regulating hand wheel 20 is provided with a portable annular groove 30 and a vertical groove 31; the hand ring groove 30 is used for the adjusting hand wheel 20 to slide upwards along the adjusting rod 22, and the vertical groove 31 facilitates the rotation of the adjusting hand wheel 20. The portable annular groove 30 is arranged at the lower part of the vertical groove 31, and the appearance is beautiful and practical.

The middle of the adjusting hand wheel 20 is provided with a middle inner hole 28 with an inner hexagonal structure, and the upper part of the adjusting rod 22 is provided with a hexagonal structure 32; the intermediate bore 28 is in positive engagement with the hex configuration 32. The limit matching structure can also be set into an octagonal or star-shaped structure, so that the linkage effect is stable during rotation, and the vertical sliding is not affected.

The filter screen 27 is wrapped on the stop assembly 34 for blocking impurities of the water inlet 10. The filter screen 27 can prevent the dirt, sand and other large-particle impurities from failing in the sealing structure of the lower part.

The upper end of the water outlet 11 of the valve body 1 is provided with a pressure gauge connector 12, and the pressure gauge is installed for assisting in pressure regulation.

According to the pressure reducing valve, through the cooperation of the limiting adjusting hand wheel and the adjacent components, when the preset value and the on-site value are adjusted in a factory, the limiting can be quickly released downwards, the downward locking is convenient, the adjustment is simple and quick, the use is safe and effective, and the pressure adjustment is more accurate through a dense limiting structure. The product has novel structure, practical design and market popularization value.

Claims

1. The utility model provides a relief pressure valve, includes valve body (1), and valve body (1) are equipped with water inlet (10) and delivery port (11), are equipped with air-vent valve core (2), its characterized in that in the middle of valve body (1): the pressure regulating valve core (2) is provided with a locking screw (29), an adjusting hand wheel (20), a valve cover (21), an adjusting rod (22), an adjusting disc (23), a pressure regulating spring (24) and a stop assembly (34) with a separation membrane (33) from top to bottom along the axis; the pressure regulating spring (24) is arranged between the regulating disc (23) and the isolating membrane (33), and the regulating disc (23) is driven to slide up and down by the rotary regulating rod (22) to regulate the compression amount of the pressure regulating spring (24); the upper part of the valve cover (21) is provided with positioning teeth (25), the positioning teeth (25) are matched with inner clamping teeth (26) of the adjusting hand wheel (20) for positioning, and the adjusting position is locked.

2. A pressure relief valve as claimed in claim 1, wherein: the adjusting hand wheel (20) is limited between the locking screw (29) and the valve cover (21) and can slide up and down along the adjusting rod (22); when the adjusting hand wheel (20) slides upwards, the inner clamping teeth (26) are separated from the positioning teeth (25) to limit.

3. A pressure reducing valve according to claim 1 or 2, characterized in that: the outer side of the adjusting hand wheel (20) is provided with a portable annular groove (30) and a vertical groove (31); the portable annular groove (30) is used for enabling the adjusting hand wheel (20) to slide upwards along the adjusting rod (22).

4. A pressure reducing valve according to claim 1 or 2, characterized in that: an inner hole (28) with a hexagon socket structure is arranged in the middle of the adjusting hand wheel (20), and a hexagon structure (32) is arranged at the upper part of the adjusting rod (22); the middle inner hole (28) is in limit fit with the hexagonal structure (32).

5. A pressure relief valve as claimed in claim 1, wherein: the filter screen (27) is wrapped on the cut-off assembly (34) and used for blocking impurities of the water inlet (10).

6. A pressure relief valve as claimed in claim 1, wherein: the upper end of a water outlet (11) of the valve body (1) is provided with a pressure gauge interface (12).