CN217067907U - Pressure stabilizing valve structure and pre-filter with built-in pressure stabilizing valve structure - Google Patents
Pressure stabilizing valve structure and pre-filter with built-in pressure stabilizing valve structure Download PDFInfo
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- CN217067907U CN217067907U CN202220778175.5U CN202220778175U CN217067907U CN 217067907 U CN217067907 U CN 217067907U CN 202220778175 U CN202220778175 U CN 202220778175U CN 217067907 U CN217067907 U CN 217067907U
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Abstract
The utility model relates to a built-in surge damping valve case, cover, the cover seal receptacle that intakes, valve rod, elasticity reset piece and play water cover of intaking, the cover that intakes includes water inlet end and assembly end A, and the cover seal receptacle that intakes includes assembly end B, and the cover that intakes can dismantle with the cover seal receptacle and be connected through the cooperation of assembly end A and assembly end B, the valve rod includes valve rod body, first assembly portion and second assembly portion, and the valve rod body is inserted and is located the cover seal receptacle that intakes, and the tip of valve rod body can dismantle with the cover that intakes and be connected; the first assembling part is at least partially positioned below the water inlet to ensure that the water inlet is unobstructed and is abutted against the inner wall of the water inlet cover; the elastic reset piece is sleeved on the valve rod body; the water outlet cover comprises a water outlet end and an assembly end C, the water outlet end is provided with a water outlet, two ends of the elastic reset piece are respectively abutted to the inner walls of the second assembly part and the assembly end C, and the tail end of the valve rod body is located on the outer side of the water outlet cover and is provided with a limiting piece. The utility model discloses can place in the pipeline of adaptation in, restriction pipeline water pressure.
Description
Technical Field
The utility model relates to a surge damping valve structure and built-in surge damping valve structure's leading filter belongs to water purification unit technical field.
Background
The prior art pre-filter comprises: the machine head, a filter flask with the upper end connected with the machine head and a drainage ball valve connected with the lower end of the filter flask are provided with a filter screen framework in which a filter screen is sleeved on the outer wall. In the using process, water flows into a gap between the filter flask and the filter screen from a water inlet of the machine head, flows into the center of the filter screen framework after being filtered by the filter screen, and then flows to a water outlet of the machine head from the center of the filter screen framework, and the front filter is deeply inserted into thousands of households and high-grade hotels.
In the use process of the pre-filter, the water pressure is prevented from being overhigh, the bursting of a filter bottle or a water pipe of the pre-filter is avoided, and the water safety is guaranteed; the existing pressure stabilizing valve generally comprises a body and water inlet and outlet connectors, the pressure stabilizing valve is connected into a pipeline through the water inlet and outlet connectors, corresponding connectors are required to be connected during installation, and the ordinary pressure stabilizing valve cannot be installed at some space limited positions. The utility model aims at providing a pressure stabilizing valve structure that can place in leading filter in.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to solve the defects of the prior art and provide a novel pressure stabilizing valve structure.
The second purpose of the utility model is to provide a leading filter with aforementioned surge damping valve structure.
The utility model provides a technical scheme that its technical problem adopted is:
the pressure stabilizing valve structure is characterized by comprising a pressure stabilizing valve cylinder body, a pressure stabilizing valve shaft, an elastic element and a pressure stabilizing valve end cover, wherein the pressure stabilizing valve cylinder body comprises a first function cavity, a second function cavity, a third function cavity and an assembly cavity, a limiting structure for controlling the axial movement distance of the pressure stabilizing shaft is arranged between the pressure stabilizing valve cylinder body and the pressure stabilizing valve shaft, a sealing part is arranged between the third function cavity and the assembly cavity, a first water flow channel is arranged on the side wall of the third function cavity, the pressure stabilizing valve shaft comprises a valve shaft body, the valve shaft body is fixedly provided with a first valve plug and a second valve plug which are respectively matched with the first function cavity and the second function cavity, the first valve plug and the second valve plug are respectively arranged in the first function cavity and the second function cavity and are axially and slidably sealed, the end part of the valve shaft body is also provided with a third valve plug, the third valve plug is arranged in the assembly cavity and can be matched with the sealing part to seal the third function cavity, the elastic element is arranged in the first function cavity, the pressure stabilizing valve end cover is detachably arranged at the bottom end of the first function cavity, two ends of the elastic element are respectively connected with the first valve plug and the pressure stabilizing valve end cover, and the pressure stabilizing valve cylinder body is further provided with a second water flow channel for communicating the water outlet end with the first function cavity.
Preferably, a first limiting structure is arranged between the first function cavity and the second function cavity, and/or a second limiting structure is arranged between the second function cavity and the third function cavity, and the first limiting structure and the second limiting structure are annular limiting bosses arranged along the circumferential direction of the inner wall of the cylinder body of the pressure stabilizing valve.
Preferably, first valve plug and second valve plug circumference are equipped with sealing element respectively, through sealing element and first function chamber and the interference fit of second function intracavity wall, realize axial sliding seal.
Preferably, a valve plug cover is detachably arranged outside the third valve plug, the valve plug cover is detachably connected with the end part of the valve shaft body, a sealing element is arranged between the valve plug cover and the third valve plug, and the third function cavity is sealed through the matching of the sealing element and the sealing part.
Preferably, the elastic element is an annular spring.
More preferably, two ends of the elastic element are respectively abutted against the first valve plug and the pressure stabilizing valve end cover, a channel between the third valve plug and the sealing part is opened in a natural state of the elastic element, and the channel between the third valve plug and the sealing part can be closed in a compressed state of the elastic element; or the two ends of the elastic element are respectively fixedly connected with the first valve plug and the pressure stabilizing valve end cover, a channel between the third valve plug and the sealing part is closed in a natural state of the elastic element, and the channel between the third valve plug and the sealing part can be opened in a stretching state of the elastic element.
Preferably, the diameter of the first function cavity is larger than that of the second function cavity, and the diameter of the second function cavity is larger than or equal to that of the third function cavity.
A pre-filter comprises a machine head and a filter flask, wherein a filter mechanism is arranged in the filter flask, and the pressure stabilizing valve structure is inserted in the filter mechanism.
The first scheme is as follows: when the water outlet port of the pre-filter is opened, purified water enters the third function cavity through the first water flow channel and flows out through a channel between the third valve plug and the sealing part; when the water outlet port is closed, water at the water outlet port enters the first function cavity through the second water flow channel (the pressure feedback hole), the first valve plug is driven to compress the elastic element downwards, the pressure stabilizing valve shaft is driven to move downwards, and the third valve plug and the sealing part are driven to be sealed;
or the scheme II: when the water outlet port of the pre-filter is opened, purified water enters the third function cavity through the first water flow channel, the third valve plug is driven upwards, the pressure stabilizing valve shaft is driven to move upwards, the elastic element is stretched, and the purified water flows out through a channel between the third valve plug and the sealing part; when the water outlet port is closed, water at the water outlet port enters the first function cavity through the second water flow channel (the pressure feedback hole), and drives the first valve plug to move downwards together with the resetting force of the elastic element, the elastic element resets, and the pressure stabilizing valve shaft is driven to move downwards to drive the third valve plug and the sealing part to be sealed.
Preferably, the periphery of the assembly cavity is provided with a plurality of assembly teeth, the top end of the framework of the filtering mechanism is provided with a plurality of adaptive assembly grooves, and the pressure stabilizing valve cylinder body is fixed with the framework of the filtering mechanism through the matching of the assembly teeth and the assembly grooves.
Preferably, the end part of the assembling cavity is matched with the water outlet port of the machine head, and a sealing element is arranged between the end part of the assembling cavity and the water outlet port of the machine head.
The utility model has the advantages that: the structure of the built-in pressure stabilizing valve is more optimized, the installation, the use and the maintenance are convenient, the processing cost is low, and the fault is not easy to cause. The water pressure of the pipeline can be limited by arranging the water pressure limiting device in the adaptive pipeline, and the water pressure limiting device can be matched with a pre-filter to protect the pre-filter.
Drawings
Fig. 1 is an exploded view of the present invention;
fig. 2 is a sectional view (passage state) of the present invention;
fig. 3 is a cross-sectional view (open state) of the present invention;
fig. 4 is a cross-sectional view of the present invention (open circuit state, axial rotation 45 ° based on fig. 3);
FIG. 5 is a schematic view of the construction of the pre-filter (passage state);
fig. 6 is a schematic structural view of the pre-filter (off state).
In the figure: 1. pressure stabilizing valve cylinder 11, first function cavity 12, second function cavity 13, third function cavity 14, assembly cavity 15, assembly tooth 2, pressure stabilizing valve shaft 21, first valve plug 22, second valve plug 23, third valve plug 24, valve plug cover 3, elastic element 4, pressure stabilizing valve end cover a, first limit structure b, second limit structure c, sealing part d, first water flow channel e, second water flow channel.
Detailed Description
The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1-4, the pressure stabilizing valve structure comprises a pressure stabilizing valve cylinder body 1, a pressure stabilizing valve shaft 2, an elastic element 3 and a pressure stabilizing valve end cover 4, wherein the pressure stabilizing valve cylinder body 1 comprises a first function cavity 11, a second function cavity 12, a third function cavity 13 and an assembly cavity 14, a first limit structure a is arranged between the first function cavity 11 and the second function cavity 12, a second limit structure b is arranged between the second function cavity 12 and the third function cavity 13, the first limit structure a and the second limit structure b are arranged at random, and the most preferable scheme is that the first limit structure a and the second limit structure b are arranged at random, a convex sealing part c is arranged between the third function cavity 13 and the assembly cavity 14, a first water flow channel d is arranged on the side wall of the third function cavity 13, the pressure stabilizing valve shaft 2 comprises a valve shaft body, the valve shaft body 21 is fixedly provided with a first valve plug 21 and a second valve plug 22 which are respectively matched with the first function cavity 11 and the second function cavity 12, first valve plug 21 and second valve plug 22 are arranged in first function chamber 11 and second function chamber 12 respectively and the axial slip is sealed, this end of valve shaft still is equipped with third valve plug 23, third valve plug 23 is arranged in assembly chamber 14, third valve plug 23 can seal third function chamber 13 with the cooperation of sealing portion c, and first function chamber 11 is arranged in to elastic element 3, and pressure stabilizing valve end cover 4 can be dismantled and locate first function chamber 11 bottom, and elastic element 3's both ends are connected with first valve plug 21 and pressure stabilizing valve end cover 4 respectively, pressure stabilizing valve barrel 1 still is equipped with the second rivers passageway e that communicates water outlet port and first function chamber 11.
It specifically arrives in the utility model discloses in, first stop gear an, second stop gear b are the spacing boss of annular along 1 inner wall circumference setting of surge damping valve barrel.
Specifically, the first valve plug 21 and the second valve plug 22 are circumferentially provided with a sealing element respectively, and the sealing element is in interference fit with the inner walls of the first functional cavity 11 and the second functional cavity 12 to realize axial sliding sealing.
Specifically, the third valve plug 23 is detachably provided with a valve plug cover 24, the valve plug cover 24 is detachably connected with the end of the valve shaft body, a sealing element is arranged between the valve plug cover 24 and the third valve plug 23, and the third function chamber 13 is sealed by the matching of the sealing element and the sealing part c.
In particular, the elastic element 3 is an annular spring.
Specifically, in this embodiment, two ends of the elastic element 3 are respectively abutted against the first valve plug 21 and the pressure maintaining valve end cap 4, a channel between the third valve plug 23 and the sealing portion c is opened in a natural state of the elastic element 3, and the channel between the third valve plug 23 and the sealing portion c can be closed in a compressed state of the elastic element 3.
In this embodiment, the diameter of the first functional cavity 11 is larger than the diameter of the second functional cavity 12, and the diameter of the second functional cavity 12 is larger than or equal to the diameter of the third functional cavity 13.
As shown in fig. 5-6, a pre-filter comprises a machine head and a filter flask, wherein a filter mechanism is arranged in the filter flask, and the pressure stabilizing valve structure is inserted in the filter mechanism.
The utility model discloses a under specific surge damping valve structure: when the water outlet port of the pre-filter is opened, the purified water enters the third functional cavity 13 through the first water flow channel d and flows out through the channel between the third valve plug 23 and the sealing part c; when the water outlet port is closed, water at the water outlet port enters the first functional cavity 11 through the second water flow channel e (pressure feedback hole), drives the first valve plug 21 to compress the elastic element 3 downwards, drives the pressure stabilizing valve shaft 2 to move downwards, and drives the third valve plug 23 and the sealing part to be sealed;
in this embodiment, the periphery of the assembly cavity 14 is provided with a plurality of assembly teeth 15, the top end of the framework of the filtering mechanism is provided with a plurality of adaptive assembly grooves, and the pressure stabilizing valve cylinder body 1 is fixed with the framework of the filtering mechanism through the matching of the assembly teeth 15 and the assembly grooves.
In addition, the end of the assembly cavity 14 is matched with the water outlet of the machine head, and a sealing element is arranged between the end of the assembly cavity and the water outlet of the machine head.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims, such as: or the two ends of the elastic element 3 are respectively and fixedly connected with the first valve plug 21 and the pressure maintaining valve end cover 4, the channel between the third valve plug 23 and the sealing part c is closed in the natural state of the elastic element 3, and the channel between the third valve plug 23 and the sealing part c can be opened in the stretching state of the elastic element 3. Under the scheme, when the water outlet port of the pre-filter is opened, purified water enters the third function cavity 13 through the first water flow channel d, the third valve plug 23 is driven upwards, the pressure stabilizing valve shaft 2 is driven to move upwards, the elastic element 3 is stretched, and the purified water flows out through a channel between the third valve plug 23 and the sealing part c; when the water outlet is closed, water at the water outlet enters the first functional cavity 11 through the second water flow channel e (pressure feedback hole), and drives the first valve plug 21 downward together with the resetting force of the elastic element 2, so that the elastic element 3 resets, and drives the pressure stabilizing valve shaft 2 to move downward, thereby driving the third valve plug 23 and the sealing part c to be closed.
Claims (10)
1. The pressure stabilizing valve structure is characterized by comprising a pressure stabilizing valve cylinder body, a pressure stabilizing valve shaft, an elastic element and a pressure stabilizing valve end cover, wherein the pressure stabilizing valve cylinder body comprises a first function cavity, a second function cavity, a third function cavity and an assembly cavity, a limiting structure for controlling the axial movement distance of the pressure stabilizing shaft is arranged between the pressure stabilizing valve cylinder body and the pressure stabilizing valve shaft, a sealing part is arranged between the third function cavity and the assembly cavity, a first water flow channel is arranged on the side wall of the third function cavity, the pressure stabilizing valve shaft comprises a valve shaft body, the valve shaft body is fixedly provided with a first valve plug and a second valve plug which are respectively matched with the first function cavity and the second function cavity, the first valve plug and the second valve plug are respectively arranged in the first function cavity and the second function cavity and are axially and slidably sealed, the end part of the valve shaft body is also provided with a third valve plug, the third valve plug is arranged in the assembly cavity and can be matched with the sealing part to seal the third function cavity, the elastic element is arranged in the first function cavity, the pressure stabilizing valve end cover is detachably arranged at the bottom end of the first function cavity, two ends of the elastic element are respectively connected with the first valve plug and the pressure stabilizing valve end cover, and the pressure stabilizing valve cylinder body is further provided with a second water flow channel for communicating the water outlet end with the first function cavity.
2. A surge valve structure according to claim 1, wherein: and a first limiting structure is arranged between the first function cavity and the second function cavity, and/or a second limiting structure is arranged between the second function cavity and the third function cavity, and the first limiting structure and the second limiting structure are annular limiting bosses arranged along the circumferential direction of the inner wall of the cylinder body of the pressure stabilizing valve.
3. A pressure maintaining valve arrangement as claimed in claim 1 or 2, wherein: first valve plug and second valve plug circumference are equipped with sealing element respectively, through sealing element and first function chamber and second function intracavity wall interference fit, realize the axial sliding seal.
4. The pressure maintaining valve structure according to claim 1 or 2, wherein a valve plug cover is detachably arranged outside the third valve plug, the valve plug cover is detachably connected with the end part of the valve shaft body, a sealing element is arranged between the valve plug cover and the third valve plug, and the third function chamber is closed through the matching of the sealing element and the sealing part.
5. A pressure maintaining valve arrangement as claimed in claim 1 or 2, wherein: the elastic element is an annular spring.
6. A pressure maintaining valve arrangement as claimed in claim 1 or 2, wherein: two ends of the elastic element are respectively abutted against the first valve plug and the pressure stabilizing valve end cover, a channel between the third valve plug and the sealing part is opened in the natural state of the elastic element, and the channel between the third valve plug and the sealing part can be closed in the compressed state of the elastic element; or the two ends of the elastic element are respectively fixedly connected with the first valve plug and the pressure stabilizing valve end cover, a channel between the third valve plug and the sealing part is closed in a natural state of the elastic element, and the channel between the third valve plug and the sealing part can be opened in a stretching state of the elastic element.
7. A pressure maintaining valve arrangement as claimed in claim 1 or 2, wherein: the diameter of the first function cavity is larger than that of the second function cavity, and the diameter of the second function cavity is larger than or equal to that of the third function cavity.
8. The utility model provides a leading filter, includes aircraft nose and filter flask, is equipped with filtering mechanism in the filter flask, its characterized in that: the pressure stabilizing valve structure as claimed in any one of claims 1 to 7 is inserted into the filtering mechanism.
9. The prefilter of claim 8 wherein: the periphery of the assembly cavity is provided with a plurality of assembly teeth, the top end of the framework of the filtering mechanism is provided with a plurality of adaptive assembly grooves, and the pressure stabilizing valve cylinder body is fixed with the framework of the filtering mechanism through the matching of the assembly teeth and the assembly grooves.
10. The prefilter of claim 9 wherein: the end part of the assembly cavity is matched with the water outlet port of the machine head, and a sealing element is arranged between the end part of the assembly cavity and the water outlet port of the machine head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220778175.5U CN217067907U (en) | 2022-04-06 | 2022-04-06 | Pressure stabilizing valve structure and pre-filter with built-in pressure stabilizing valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220778175.5U CN217067907U (en) | 2022-04-06 | 2022-04-06 | Pressure stabilizing valve structure and pre-filter with built-in pressure stabilizing valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217067907U true CN217067907U (en) | 2022-07-29 |
Family
ID=82554258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220778175.5U Active CN217067907U (en) | 2022-04-06 | 2022-04-06 | Pressure stabilizing valve structure and pre-filter with built-in pressure stabilizing valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217067907U (en) |
-
2022
- 2022-04-06 CN CN202220778175.5U patent/CN217067907U/en active Active
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