CN218845235U - Novel freely-adjustable pressure limiting valve - Google Patents
Novel freely-adjustable pressure limiting valve Download PDFInfo
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- CN218845235U CN218845235U CN202123013217.0U CN202123013217U CN218845235U CN 218845235 U CN218845235 U CN 218845235U CN 202123013217 U CN202123013217 U CN 202123013217U CN 218845235 U CN218845235 U CN 218845235U
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Abstract
The utility model discloses a novel freely adjust pressure limiting valve, include: a housing having a water outlet end and a water inlet end; the pressure limiting seat is arranged in the shell and is in sealed detachable connection with the shell, and a pressure limiting hole for communicating the water inlet end with the water outlet end is formed in the pressure limiting seat; the piston moving piece is movably arranged between the water inlet end and the water outlet end in the shell, and when the piston moving piece moves to the limit of the water inlet end, the head of the piston moving piece is abutted with the pressure limiting seat to seal the pressure limiting hole; the adjusting seat is movably arranged on the periphery of the piston moving part; the elastic component, it presss from both sides and establishes between the afterbody of adjusting seat and piston moving member, when play water end water pressure increase made the piston moving member to the end removal of intaking, the elastic component provides the power to the end direction of water outlet for the piston moving member. The utility model discloses can realize the pressure limiting effect of different pressure ranks and adjust convenient and fast, the practicality is strong.
Description
Technical Field
The utility model relates to a fluid control part technical field, concretely relates to novel freely adjust pressure limiting valve.
Background
The demand of various water in a daily water supply system is continuously increased, the water supply pressure of the daily water supply system is higher, the service pressure of household water, industrial water and a boiler system at a home end is not required to be too high, the water supply pressure is high, but the household water appliances, industrial equipment, boiler facilities or pipelines are damaged, so that the pressure limiting device is arranged at an entrance of the home end and is a safety protection measure, the safe use of the household water appliances, the industrial equipment and the boiler facilities can be ensured, the pipeline explosion phenomenon can not occur, the pressure limiting device is more and more widely used along with the improvement of safety consciousness of people, the pressure outputs of the current domestic and foreign markets in common specifications are three pressure limiting valves of 350kPa, 500kPa and 600kPa respectively, each pressure limiting valve in the specification can only output one pressure singly and correspondingly, the output pressure cannot be freely adjusted according to the actual use requirement, and if the output pressure needs to be changed, the pressure limiting valve needs to be replaced, time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is also an object to provide a novel freely adjust pressure limiting valve, its elasticity that encloses the elastic component of establishing in piston moving member periphery through setting up the nimble regulation of mobilizable regulation seat changes the size of the power that the elastic component provided for the piston moving member to the end direction of intaking, and then can bear the pressure size to the end direction of intaking that end water pressure provided when changing the piston moving member balance static to reach the hydraulic purpose of change water end.
To achieve these objects and other advantages in accordance with the purpose of the invention, a novel free-regulating pressure limiting valve is provided, comprising:
a housing having a water outlet end and a water inlet end;
the pressure limiting seat is arranged in the shell and is in sealed detachable connection with the shell, and a pressure limiting hole for communicating the water inlet end with the water outlet end is formed in the pressure limiting seat;
the piston moving piece is movably arranged between the water inlet end and the water outlet end in the shell, and when the piston moving piece moves to the water inlet end to the limit, the head of the piston moving piece abuts against the pressure limiting seat to plug the pressure limiting hole;
the adjusting seat is movably arranged on the periphery of the piston moving part;
and the elastic piece is clamped between the adjusting seat and the tail part of the piston moving piece, and when the water pressure at the water outlet end is increased to enable the piston moving piece to move towards the water inlet end, the elastic piece provides force towards the water outlet end for the piston moving piece.
Preferably, in the novel freely adjustable pressure limiting valve, an adjusting ring is rotatably surrounded on the periphery of the shell, and a plurality of adjusting holes are uniformly and annularly formed in the shell; the adjusting seat comprises an annular part, a plurality of adjusting blocks which are arranged at one end of the annular part and protrude outwards, and a limiting block which is arranged at the other end of the annular part and protrudes inwards; a plurality of the regulating block pass its correspond the regulation hole with adjust ring threaded connection, the elastic component clamp is established the stopper with between the afterbody of piston moving member, rotate during the adjustable ring, the drive adjust the seat to go out the water end or it removes to advance water end direction, it is right the elastic component carries out the extrusion of different degrees to realize the not pressure rated voltage limiting.
Preferably, in the novel freely-adjustable pressure limiting valve, the shell comprises a water outlet shell and a water inlet shell which are detachably connected, a first boss is arranged on the periphery of the water outlet shell, a second boss is arranged on the periphery of the water inlet shell, and the adjusting ring is clamped between the first boss and the second boss.
Preferably, in the novel freely-adjustable pressure limiting valve, the elastic member is a spring, and the spring is sleeved on the periphery of the piston moving member and clamped between the limiting block and the tail part of the piston moving member.
Preferably, in the novel freely adjustable pressure limiting valve, the pressure limiting seat is internally communicated and one end of the pressure limiting seat is sealed, the pressure limiting hole is formed in the side wall of the pressure limiting seat, the piston moving member is provided with a through hole which is communicated with the water inlet end, the pressure limiting hole and the water outlet end, the head of the piston moving member is inserted in the pressure limiting seat in a sliding and sealing mode, when the piston moving member moves to the limit towards the water inlet end, the head of the piston moving member abuts against the sealed end of the pressure limiting seat to seal the pressure limiting hole and the through hole, and the tail of the piston moving member is connected with the shell in a sliding and sealing mode.
Preferably, in the novel freely adjustable pressure limiting valve, the piston moving member comprises:
the piston is provided with the through hole, the head of the piston is inserted in the pressure limiting seat in a sliding and sealing manner, and when the piston moving piece moves to the limit towards the water inlet end, the head of the piston abuts against the sealing end of the pressure limiting seat to seal the pressure limiting hole and the through hole;
retaining member, it encloses to establish the piston periphery and with the sealed connection of dismantling of afterbody of piston, the retaining member with casing sliding seal connects.
Preferably, in the novel freely-adjustable pressure limiting valve, sealing parts are arranged at the contact surfaces of the inner side wall of the shell and the locking part and at the contact surfaces of the inner side wall of the piston and the pressure limiting seat.
Preferably, in the novel freely adjustable pressure limiting valve, the outer side wall of the head of the piston is provided with an inclined surface.
Preferably, in the novel freely adjustable pressure limiting valve, the pressure limiting seat comprises:
the pressure limiting seat body is internally communicated and has two open ends, and the side wall of the pressure limiting seat body is provided with the pressure limiting hole;
and the sealing plug is hermetically and detachably connected with one end of the pressure limiting seat body.
Preferably, in the novel freely adjustable pressure limiting valve, an inner wall step is arranged in the shell, and when the piston moving member moves to the water outlet end to the limit, the tail part of the piston moving member abuts against the inner wall step of the shell.
The utility model discloses at least, include following beneficial effect: the novel freely-adjustable pressure limiting valve can freely adjust the output pressure according to the actual use condition, is a universal pressure limiting valve, covers various specifications such as 350kPa, 500kPa, 600kPa and the like, is suitable for different places with different output pressure requirements, adjusts and changes the elasticity of the elastic part by moving the adjusting seat to different gears corresponding to different positions, and can realize the pressure limiting effect of different pressure grades; the utility model discloses adjust convenient and fast, convenient to use is nimble, and the practicality is strong.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic cross-sectional structural diagram of a novel freely adjustable pressure limiting valve in one of the technical solutions of the present invention;
fig. 2 is a perspective view of a novel freely adjustable pressure limiting valve according to one embodiment of the present invention;
fig. 3 is a schematic structural diagram of an adjusting seat in one of the technical solutions of the present invention;
the water inlet and outlet device comprises a water outlet shell 1, an inner wall step 2, a sealing element 3, an elastic element 4, an adjusting ring 5, an adjusting block 6, an adjusting seat 7, a limiting block 8, a pressure limiting hole 9, a water inlet shell 10, a water inlet end 11, an auxiliary moving block 12, a sealing plug 13, a pressure limiting seat body 14, a second boss 15, a piston 16, a first boss 17, a locking element 18, a through hole 19, a water outlet end 20 and an annular part 21.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials, if not otherwise specified, are commercially available; in the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the present invention, and do not indicate or imply that the novel freely-adjustable pressure-limiting valve or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In one of them technical scheme, as shown in fig. 1, the utility model provides a novel freely adjust pressure limiting valve, include:
a housing having a water outlet end 20 and a water inlet end 11;
the pressure limiting seat is arranged in the shell and is in sealed detachable connection with the shell, and a pressure limiting hole 9 for communicating the water inlet end 11 with the water outlet end 20 is formed in the pressure limiting seat;
the piston moving piece is movably arranged between the water inlet end 11 and the water outlet end 20 in the shell, and when the piston moving piece moves to the water inlet end 11 to the limit, the head of the piston moving piece abuts against the pressure limiting seat to seal the pressure limiting hole 9;
the adjusting seat 7 is movably arranged on the periphery of the piston moving part;
and the elastic element 4 is clamped between the adjusting seat 7 and the tail part of the piston moving element, and when the water pressure of the water outlet end 20 is increased to enable the piston moving element to move towards the water inlet end 11, the elastic element 4 provides force towards the water outlet end 20 for the piston moving element.
The novel free regulation pressure limiting valve provided by the technical scheme comprises a shell with a water inlet end 11 and a water outlet end 20, a pressure limiting seat positioned in the shell, a piston moving member, a regulation seat 7 and an elastic member 4, wherein the pressure limiting seat is connected with the shell in a sealing and detachable mode, a pressure limiting hole 9 is formed in the pressure limiting seat, water flow can flow from the water inlet end 11 to the water outlet end 20 of the shell through the pressure limiting hole 9, the size of the pressure limiting hole 9 can limit the flow of the water flow flowing from the water inlet end 11 to the water outlet end 20 so as to change the flowing water pressure of the water outlet end 20, a sealing member 3 can be arranged between the pressure limiting seat and the shell for sealing, the piston moving member is positioned between the water outlet end 20 and the water inlet end 11 and can move towards the two ends, the regulation seat 7 is arranged on the periphery of the piston moving member and can move along the moving direction of the piston moving member, the elastic member 4 is arranged between the regulation seat 7 and the tail of the piston moving member, when the water pressure of the water outlet end 20 is increased so as to enable the piston moving member to move towards the water inlet end 11, the compression force of the piston moving member is provided for compressing the piston moving member, and the pressure limiting seat can change the compression state of the piston moving member 4, and the pressure limiting seat can be used for enabling the piston moving member to be abutted against the pressure limiting seat to move towards the pressure limiting seat 9.
The novel working principle of the freely-adjustable pressure limiting valve provided by the technical scheme is as follows: when the water flow at the water outlet end 20 of the shell is completely opened, the size of the pressure limiting hole 9 is unchanged, and the water flow is kept smooth; when the water flow of the water outlet end 20 of the shell is closed or the water outlet is reduced, the water pressure of the water outlet end 20 is continuously increased to enable the piston moving member to be stressed to move towards the water inlet end 11, the pressure limiting hole 9 is continuously reduced to enable the water flow to be reduced so as to reduce the pressure of the water outlet end 20, meanwhile, the elastic member 4 is compressed to provide force towards the direction of the water outlet end 20 for the piston moving member until the piston moving member is stressed in a balanced manner and is static, and at the moment, the elasticity of the elastic member 4 is the same as the water pressure of the water outlet end 20 of the shell; the adjusting seat 7 is moved along the moving direction of the piston moving member, the compression state of the elastic member 4 can be changed, and the force provided by the elastic member 4 for the piston moving member to the direction of the water outlet end 20 can be changed, so that the maximum water pressure of the water outlet end 20 is changed.
The utility model can preferentially adjust the position of the adjusting seat according to the limit pressure of the water equipment to be connected with the known water outlet end, change the compression state of the elastic piece, further limit the maximum water pressure of the water outlet end, and then install the water equipment between the water equipment and the water supply pipe; in the process of water use, the position of the adjusting seat can be freely adjusted, the compression state of the elastic piece is changed, and the water pressure at the water outlet end is further changed, so that the use requirement is met.
The utility model discloses at least, include following beneficial effect: the pressure limiting seat is arranged in the shell in a sealing and detachable way, and the pressure limiting seat is provided with a pressure limiting hole which is communicated with the water inlet end and the water outlet end, the piston moving member is arranged in the shell in a moving way, and the piston moving member can change the size of the pressure limiting hole to change the water flow to further change the pressure of the water outlet end; the utility model discloses well accessible is adjusted the position of adjusting the seat and is changed the compression state of elastic component, and then changes the power to water outlet end direction that the elastic component provided for the piston moving member to change the biggest water pressure that the water outlet end can bear in a flexible way.
In another technical solution, as shown in fig. 1, 2 and 3, in the novel freely-adjustable pressure limiting valve, an adjusting ring 5 is rotatably enclosed on the periphery of the housing, and a plurality of adjusting holes are uniformly and annularly arranged on the housing; the adjusting seat 7 comprises an annular part 21, a plurality of adjusting blocks 6 which are arranged at one end of the annular part 21 and protrude outwards, and a limiting block 8 which is arranged at the other end of the annular part 21 and protrudes inwards; a plurality of regulating block 6 passes its correspond adjust the hole with adjust ring 5 threaded connection, elastic component 4 presss from both sides and establishes stopper 8 with between the afterbody of piston moving member, rotate during adjust ring 5, the drive adjust seat 7 to go out the water end or it removes to intake the end direction, it is right elastic component 4 carries out the extrusion of different degrees to realize the voltage limiting of different pressure levels.
In order to enable the limiting block to move in the adjusting hole, the length of the adjusting hole is larger than that of the limiting block. The adjusting ring is rotated, so that the adjusting block can move in the adjusting hole along the moving direction of the piston moving piece, and further the annular part and the limiting block are driven to synchronously move along with the adjusting block, thereby flexibly changing the compression state of the elastic piece and realizing pressure limiting at different levels; the adjusting ring is in threaded connection with the adjusting block, so that the adjustment is convenient and flexible, and the adjustment precision is high; the limiting block can be annular and is arranged around the periphery of the piston moving part in a surrounding way so as to uniformly compress the elastic part and ensure that the piston moving part is uniformly stressed; the adjusting holes can be two, the part machining difficulty can be reduced as much as possible under the condition that stress of the elastic piece is uniform, and machining efficiency is improved.
In another technical scheme, as shown in fig. 1 and 2, in the novel freely-adjustable pressure limiting valve, the housing includes a water outlet housing 1 and a water inlet housing 10 which are detachably connected, a first boss 17 is arranged on the periphery of the water outlet housing 1, a second boss 15 is arranged on the periphery of the water inlet housing 10, and the adjusting ring 5 is clamped between the first boss 17 and the second boss 15. The adjustable ring card is established between first boss and second boss to the position of restriction adjustable ring on the casing, and the casing divide into detachable play water casing and go into the water casing and make things convenient for adjustable ring and casing internals to overhaul to dismantle the change.
In another technical scheme, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, the elastic member 4 is a spring, and the spring is sleeved on the periphery of the piston moving member and clamped between the limiting block 8 and the tail part of the piston moving member. The spring is common machine part, and the cover is established in piston moving member periphery, can provide even power for the piston moving member.
In another technical solution, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, the pressure limiting seat is internally communicated and one end is sealed, the pressure limiting hole 9 is formed in the side wall of the pressure limiting seat, the piston moving member is provided with a through hole 19 communicating the water inlet end 11, the pressure limiting hole 9 and the water outlet end 20, the head of the piston moving member is slidably and hermetically inserted into the pressure limiting seat, and when the piston moving member moves to the limit towards the water inlet end 11, the head of the piston moving member abuts against the sealed end of the pressure limiting seat to seal the pressure limiting hole 9 and the through hole 19, and the tail of the piston moving member is slidably and hermetically connected with the housing.
The pressure limiting seat can be in a sleeve shape with one end sealed, the piston moving piece is provided with a through hole penetrating through the head and the tail of the piston moving piece, when the piston moving piece moves to the water inlet end along the inside of the shell, the head of the piston moving piece continuously extends into the pressure limiting seat, meanwhile, the side wall of the piston moving piece moves along the side wall of the pressure limiting seat, the overlapping area is continuously increased, the pressure limiting hole on the side wall of the pressure limiting seat is gradually blocked by the side wall of the piston moving piece, the water passage is continuously reduced, when the head of the piston moving piece abuts against the end sealed by the pressure limiting seat, the pressure limiting hole is blocked by the side wall of the piston moving piece, the water inlet of the through hole on the head of the piston moving piece is blocked by the end sealed by the pressure limiting seat, and the water flow passage is cut off.
In another embodiment, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, the piston moving member includes:
the piston 16 is provided with the through hole 19, the head of the piston is inserted in the pressure limiting seat in a sliding and sealing manner, and when the piston moving member moves to the water inlet end 11 to the limit, the head of the piston 16 is abutted against the sealing end of the pressure limiting seat to seal the pressure limiting hole 9 and the through hole 19;
and the locking member 18 is arranged around the periphery of the piston 16 and is in sealing and detachable connection with the tail part of the piston 16, and the locking member 18 is in sliding and sealing connection with the shell.
The piston is provided with a through hole penetrating through the head and the tail of the piston, if the piston is tubular, when the piston moves towards the water inlet end, the head of the piston continuously penetrates into the pressure limiting seat, meanwhile, the side wall of the piston moves along the side wall of the pressure limiting seat, the overlapping area is continuously increased, the pressure limiting hole on the side wall of the pressure limiting seat is gradually blocked by the side wall of the piston, the water passage is continuously reduced, when the head of the piston is abutted against the sealing end of the pressure limiting seat, the pressure limiting hole is blocked by the side wall of the piston moving piece, the water inlet of the through hole at the head of the piston is blocked by the sealing end of the pressure limiting seat, and the water flow passage is cut off;
the piston and the pressure limiting seat, the locking member and the piston, and the locking member and the shell are sealed, so that water flows from the water inlet end to the water outlet end through the pressure limiting hole, the inside of the pressure limiting seat and the through hole in sequence, and the pressure effect is prevented from being influenced by leakage; in order to adapt to different water quality environments, the piston is made of corrosion-resistant stainless steel, and the piston moving piece is designed to be detachably connected with the locking piece, so that the piston is convenient to detach and replace; a sealing member is provided between the retaining member and the piston for sealing.
In another technical solution, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, sealing elements 3 are disposed at the contact surfaces of the inner side wall of the housing and the locking element 18, and at the contact surfaces of the inner side wall of the pressure limiting seat and the piston 16. The sealing element can be a sealing ring, and the pressure effect is prevented from being influenced by water leakage.
In another technical solution, as shown in fig. 1, in the new freely adjustable pressure limiting valve, the outer side wall of the head of the piston 16 is provided with an inclined surface. The inclined surface provides a guiding function when the piston moves towards the water inlet end.
In another technical solution, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, the pressure limiting seat comprises:
the pressure limiting seat body 14 is internally communicated and has two open ends, and the side wall of the pressure limiting seat body 14 is provided with the pressure limiting hole 9;
and the sealing plug 13 is connected with one end of the pressure limiting seat body 14 in a sealing and detachable mode.
When the piston moves to the water inlet end to the limit, the piston is abutted against the sealing plug, the sealing plug is easy to damage due to long-time interaction, and the sealing plug is detachably connected with the pressure limiting seat body, so that the sealing plug is convenient to replace; an auxiliary moving block 12 can be arranged at one end of the sealing plug back to the opening of the pressure limiting seat, so that the sealing plug is convenient to disassemble. And a sealing element is arranged between the sealing plug and the pressure limiting seat body for sealing.
In another technical solution, as shown in fig. 1, in the novel freely adjustable pressure limiting valve, an inner wall step 2 is disposed in the housing, and when the piston moving member moves to the limit toward the water outlet end 20, the tail of the piston moving member abuts against the inner wall step 2 of the housing. The inner wall step limits the limit position of the piston moving member when the piston moving member moves towards the water outlet end, and the piston moving member is prevented from being separated from the shell when the piston moving member moves towards the water outlet end due to water flow impulsive force or elastic force of the elastic member.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. Novel freely adjust pressure limiting valve, its characterized in that includes:
a housing having a water outlet end and a water inlet end;
the pressure limiting seat is arranged in the shell and is in seal detachable connection with the shell, and a pressure limiting hole for communicating the water inlet end with the water outlet end is formed in the pressure limiting seat;
the piston moving piece is movably arranged between the water inlet end and the water outlet end in the shell, and when the piston moving piece moves to the water inlet end to the limit, the head of the piston moving piece abuts against the pressure limiting seat to plug the pressure limiting hole;
the adjusting seat is movably arranged on the periphery of the piston moving part;
and the elastic piece is clamped between the adjusting seat and the tail part of the piston moving piece, and when the water pressure at the water outlet end is increased to enable the piston moving piece to move towards the water inlet end, the elastic piece provides force towards the water outlet end for the piston moving piece.
2. The new freely adjustable pressure limiting valve as defined in claim 1 wherein said housing is rotatably surrounded by an adjustment ring, said housing being uniformly surrounded by a plurality of adjustment holes; the adjusting seat comprises an annular part, a plurality of adjusting blocks which are arranged at one end of the annular part and protrude outwards, and a limiting block which is arranged at the other end of the annular part and protrudes inwards; a plurality of the regulating block pass its correspond the regulation hole with adjust ring threaded connection, the elastic component clamp is established the stopper with between the afterbody of piston moving member, rotate during the adjustable ring, the drive adjust the seat to go out the water end or it removes to advance water end direction, it is right the elastic component carries out the extrusion of different degrees to realize the not pressure rated voltage limiting.
3. The novel freely adjustable pressure limiting valve as recited in claim 2, wherein the housing comprises a water outlet housing and a water inlet housing, the water outlet housing and the water inlet housing are detachably connected, a first boss is disposed on the periphery of the water outlet housing, a second boss is disposed on the periphery of the water inlet housing, and the adjusting ring is clamped between the first boss and the second boss.
4. The new freely adjustable pressure limiting valve as claimed in claim 2, wherein said elastic member is a spring, said spring is sleeved on the outer periphery of said movable piston member and is sandwiched between said stopper and the tail of said movable piston member.
5. The novel freely adjustable pressure limiting valve as claimed in claim 1, wherein the pressure limiting seat is internally hollow and has one end sealed, the pressure limiting hole is provided on the side wall of the pressure limiting seat, the piston moving member is provided with a through hole communicating with the water inlet end, the pressure limiting hole and the water outlet end, the head of the piston moving member is slidably and sealingly inserted in the pressure limiting seat, and when the piston moving member moves to the limit towards the water inlet end, the head of the piston moving member abuts against the end sealed by the pressure limiting seat to seal the pressure limiting hole and the through hole, and the tail of the piston moving member is slidably and sealingly connected with the housing.
6. The novel freely adjustable pressure limiting valve as set forth in claim 5 wherein said piston moving member comprises:
the piston is provided with the through hole, the head of the piston is inserted in the pressure limiting seat in a sliding and sealing manner, and when the piston moving piece moves to the limit towards the water inlet end, the head of the piston abuts against the sealing end of the pressure limiting seat to seal the pressure limiting hole and the through hole;
retaining member, it encloses to establish the piston periphery and with the sealed connection of dismantling of afterbody of piston, the retaining member with casing sliding seal connects.
7. The novel freely adjustable pressure limiting valve as recited in claim 6 wherein sealing members are disposed at the interface between the inner side wall of the housing and the locking member and at the interface between the inner side wall of the pressure limiting seat and the piston.
8. The new free standing pressure limiting valve as claimed in claim 6 wherein the outer side wall of the head of the piston is provided with a ramped surface.
9. The novel free-regulating pressure limiting valve of claim 5, wherein the pressure limiting seat comprises:
the pressure limiting seat body is internally communicated, two ends of the pressure limiting seat body are opened, and the side wall of the pressure limiting seat body is provided with the pressure limiting hole;
and the sealing plug is hermetically and detachably connected with one end of the pressure limiting seat body.
10. The new freely adjustable pressure limiting valve as recited in claim 1, wherein an inner wall step is provided in said housing, and when said piston moving member moves to the limit toward said outlet end, the tail of said piston moving member abuts against the inner wall step of said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123013217.0U CN218845235U (en) | 2021-12-02 | 2021-12-02 | Novel freely-adjustable pressure limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123013217.0U CN218845235U (en) | 2021-12-02 | 2021-12-02 | Novel freely-adjustable pressure limiting valve |
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| Publication Number | Publication Date |
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| CN218845235U true CN218845235U (en) | 2023-04-11 |
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| CN202123013217.0U Active CN218845235U (en) | 2021-12-02 | 2021-12-02 | Novel freely-adjustable pressure limiting valve |
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