CN212080276U - Opening pressure adjustable integrated valve and bypass valve body thereof - Google Patents
Opening pressure adjustable integrated valve and bypass valve body thereof Download PDFInfo
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- CN212080276U CN212080276U CN202020561696.6U CN202020561696U CN212080276U CN 212080276 U CN212080276 U CN 212080276U CN 202020561696 U CN202020561696 U CN 202020561696U CN 212080276 U CN212080276 U CN 212080276U
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Abstract
The utility model provides an opening pressure adjustable integrated valve and bypass valve body thereof relates to the water valve field. The integrated valve with adjustable opening pressure comprises a main valve body and a bypass valve body, wherein the bypass valve body comprises a cylindrical valve sleeve, a first valve core, a second valve core and an elastic part, the upper part of the cylindrical valve sleeve is provided with internal threads, the first valve core is provided with external threads matched with the internal threads, and the upper end of the first valve core is provided with a screwing structure; the second valve core is movably arranged at the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the cylindrical valve sleeve is provided with an inward-turning edge, the lower portion of the second valve core is provided with a sealing structure, and the sealing structure is in sealing fit with the inward-turning edge; the middle part of the inward-turned edge is provided with a water inlet, the side wall of the cylindrical valve sleeve is provided with a water outlet, and an in-valve flow passage for communicating the water inlet and the water outlet is formed when the sealing structure is separated from the inward-turned edge; the water inlet and the water outlet of the bypass valve body are positioned in the bypass flow channel.
Description
Technical Field
The utility model relates to a water valve technical field especially relates to an opening pressure adjustable integrated valve and bypass valve body thereof.
Background
At present, an integrated valve is generally used on heating equipment, the integrated valve mainly comprises a main valve body, a circulating pump and a bypass valve body, a return water flow passage, a water outlet flow passage and a bypass flow passage are arranged in the main valve body, the circulating pump is installed in the return water flow passage of the main valve body, and a bypass valve seat used for installing the bypass valve body is further arranged on the main valve body.
The first port of the return water channel of the main valve body is connected with a return water pipeline of the heating device, the second port of the return water channel is connected with the circulating pump and communicated with a water supply pipe of the main heat exchanger through the circulating pump, the second port of the water outlet channel is communicated with a water outlet pipe of the main heat exchanger, and the first port of the water outlet channel is connected with a water inlet pipeline of the heating device. The bypass valve is arranged in the bypass valve seat, and the bypass flow channel is opened or closed through a bypass valve body arranged in the bypass valve seat. However, in actual use, the water inlet pipeline, the heating device and the water return pipeline are blocked, the circulating pump continuously works to pump water back to the main heat exchanger, pressure of the inner pipeline and the water outlet flow channel of the heating equipment is increased undoubtedly, the bypass valve body acts under the pressure action of hot water, the bypass flow channel is opened to enable part of the hot water to directly enter the water return flow channel, and circulation of water in the inner pipeline of the main heat exchanger is guaranteed. Because the opening pressure of the existing bypass valve body is constant, the bypass valve cannot adapt to different installation requirements, and then the bypass valve with adjustable opening pressure is developed.
However, the bypass valve in the prior art adopts the structural design of the valve body, the sealing block, the adjusting rod and the plug, and each part needs to be respectively installed in the bypass flow channel during actual installation, so that the requirement on installation precision is high, and the bypass valve is difficult to remove and take out if needing to be overhauled, which is not favorable for later overhaul and replacement operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims to provide an opening pressure adjustable bypass valve body to solve prior art's bypass valve and be high to the requirement of installation accuracy, if need to overhaul the bypass valve then be difficult to remove and take out from it, be unfavorable for the maintenance in later stage and the problem of change operation. Simultaneously the utility model aims at still providing an opening pressure adjustable integrated valve.
The utility model discloses an opening pressure adjustable bypass valve body's technical scheme does:
the bypass valve body with adjustable opening pressure comprises a cylindrical valve sleeve, a first valve core, a second valve core and an elastic element, wherein the first valve core, the second valve core and the elastic element are movably arranged in the cylindrical valve sleeve;
the second valve core is movably arranged on the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the cylindrical valve sleeve is provided with an inward-turning edge, the lower portion of the second valve core is provided with a sealing structure, and the sealing structure is in sealing fit with the inward-turning edge;
the middle part of the inward turning edge is provided with a water inlet, the side wall of the cylindrical valve sleeve is provided with a water outlet, and when the sealing structure is jacked up and separated from the inward turning edge, an in-valve flow channel is formed by communicating the water inlet and the water outlet.
Has the advantages that: the second valve core is movably arranged at the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the second valve core is provided with a sealing structure which is in sealing fit with the inward turning edge, and a valve inner flow channel which is communicated with the water inlet and the water outlet is formed when the sealing structure is separated from the inward turning edge. Through twisting the roof pressure effort that first case changes the elastic component soon, reach the purpose of adjusting the opening pressure of bypass runner, all set up first case, second case and elastic component in the tube-shape valve barrel, the structural integrity of whole bypass valve body is stronger, can assemble in the main valve body as integral spare part, and is lower to the requirement of installation accuracy, if need overhaul the change, can directly carry out whole the tearing open to the bypass valve body and trade, is favorable to the maintenance and the change operation in later stage.
Furthermore, the upper part of the cylindrical valve sleeve is provided with an internal thread, and the first valve core is provided with an external thread matched with the internal thread; the inner wall of the cylindrical valve sleeve is positioned on the upper portion of the internal thread and is provided with an upper reaming hole, the first valve core is positioned on the upper portion of the external thread and is provided with a first sealing ring, and the first sealing ring is in sealing fit with the hole wall of the upper reaming hole.
Further, the first valve core comprises a valve core end cover and a core body, the valve core end cover is fixed to the upper end of the core body, the first sealing ring is arranged between the valve core end cover and the upper hole-expanding hole wall, and the core body comprises a threaded section provided with the external thread and a first assembling section located on the lower side of the threaded section.
Furthermore, the valve core end cover, the threaded section and the first assembling section are arranged along the same axis, and the outer diameter of the threaded section is larger than that of the first assembling section.
Further, the second valve core comprises a valve core pressing plate and a second assembling section, the sealing structure is arranged on the lower side of the valve core pressing plate, and the elastic piece is installed between the first assembling section and the second assembling section.
Further, an outer ring sleeve is further arranged on the valve core pressing plate, the outer ring sleeve is coaxially arranged on the periphery of the second assembling section, and an assembling ring groove is formed between the outer ring sleeve and the second assembling section; the elastic part is a cylindrical pressure spring, the upper end of the cylindrical pressure spring is sleeved in an interference mode outside the first assembling section, and the lower end of the cylindrical pressure spring is installed in the assembling ring groove in a clearance fit mode.
Further, the height of the outer ring sleeve is smaller than that of the second assembling section.
Furthermore, the sealing structure comprises a sealing gasket, a pressing plate and a fastening bolt, the pressing plate is arranged on the lower side of the valve core pressing plate, the sealing gasket is tightly installed between the valve core pressing plate and the pressing plate, the fastening bolt is in penetrating connection with the valve core pressing plate, the sealing gasket and the pressing plate, and the outer contour of the pressing plate is smaller than the inner contour of the water inlet.
Furthermore, a second sealing ring and a third sealing ring are further sleeved outside the cylindrical valve sleeve, the second sealing ring is located on the upper side of the water outlet, and the third sealing ring is located on the lower side of the water outlet.
The utility model discloses an opening pressure adjustable integrated valve's technical scheme does:
the integrated valve with adjustable opening pressure comprises a main valve body and a bypass valve body, wherein a return water flow channel, a water outlet flow channel and a bypass flow channel are arranged inside the main valve body, a bypass valve seat communicated with the bypass flow channel is further arranged on the main valve body, the bypass valve body is hermetically arranged in the bypass valve seat, the bypass valve body comprises a cylindrical valve sleeve, a first valve core, a second valve core and an elastic piece, the first valve core is movably arranged in the cylindrical valve sleeve, the first valve core is assembled on the upper portion of the cylindrical valve sleeve in a threaded mode, and a screwing structure is arranged at the upper end of the first valve core;
the second valve core is movably arranged on the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the cylindrical valve sleeve is provided with an inward-turning edge, the lower portion of the second valve core is provided with a sealing structure, and the sealing structure is in sealing fit with the inward-turning edge;
the middle part of the inward turning edge is provided with a water inlet, the side wall of the cylindrical valve sleeve is provided with a water outlet, and when the sealing structure is jacked up and separated from the inward turning edge, an in-valve flow channel is formed by communicating the water inlet and the water outlet.
Has the advantages that: the second valve core is movably arranged at the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the second valve core is provided with a sealing structure which is in sealing fit with the inward turning edge, and a valve inner flow channel which is communicated with the water inlet and the water outlet is formed when the sealing structure is separated from the inward turning edge. Through twisting the roof pressure effort that first case changes the elastic component soon, reach the purpose of adjusting the opening pressure of bypass runner, all set up first case, second case and elastic component in the tube-shape valve barrel, the structural integrity of whole bypass valve body is stronger, can assemble in the main valve body as integral spare part, and is lower to the requirement of installation accuracy, if need overhaul the change, can directly carry out whole the tearing open to the bypass valve body and trade, is favorable to the maintenance and the change operation in later stage.
Furthermore, the upper part of the cylindrical valve sleeve is provided with an internal thread, and the first valve core is provided with an external thread matched with the internal thread; the inner wall of the cylindrical valve sleeve is positioned on the upper portion of the internal thread and is provided with an upper reaming hole, the first valve core is positioned on the upper portion of the external thread and is provided with a first sealing ring, and the first sealing ring is in sealing fit with the hole wall of the upper reaming hole.
Further, the first valve core comprises a valve core end cover and a core body, the valve core end cover is fixed to the upper end of the core body, the first sealing ring is arranged between the valve core end cover and the upper hole-expanding hole wall, and the core body comprises a threaded section provided with the external thread and a first assembling section located on the lower side of the threaded section.
Furthermore, the valve core end cover, the threaded section and the first assembling section are arranged along the same axis, and the outer diameter of the threaded section is larger than that of the first assembling section.
Further, the second valve core comprises a valve core pressing plate and a second assembling section, the sealing structure is arranged on the lower side of the valve core pressing plate, and the elastic piece is installed between the first assembling section and the second assembling section.
Further, an outer ring sleeve is further arranged on the valve core pressing plate, the outer ring sleeve is coaxially arranged on the periphery of the second assembling section, and an assembling ring groove is formed between the outer ring sleeve and the second assembling section; the elastic part is a cylindrical pressure spring, the upper end of the cylindrical pressure spring is sleeved in an interference mode outside the first assembling section, and the lower end of the cylindrical pressure spring is installed in the assembling ring groove in a clearance fit mode.
Further, the height of the outer ring sleeve is smaller than that of the second assembling section.
Furthermore, the sealing structure comprises a sealing gasket, a pressing plate and a fastening bolt, the pressing plate is arranged on the lower side of the valve core pressing plate, the sealing gasket is tightly installed between the valve core pressing plate and the pressing plate, the fastening bolt is in penetrating connection with the valve core pressing plate, the sealing gasket and the pressing plate, and the outer contour of the pressing plate is smaller than the inner contour of the water inlet.
Furthermore, a second sealing ring and a third sealing ring are further sleeved outside the cylindrical valve sleeve, the second sealing ring is located on the upper side of the water outlet, and the third sealing ring is located on the lower side of the water outlet.
Drawings
Fig. 1 is a schematic perspective view of an integrated valve according to an embodiment 1 of the present invention with adjustable opening pressure;
fig. 2 is an exploded view of the main valve body and the bypass valve body in the embodiment 1 of the integrated valve with adjustable opening pressure according to the present invention;
FIG. 3 is a vertical cross-sectional view of the integration valve of FIG. 1;
fig. 4 is a vertical cross-sectional view of the bypass valve body in the closed state according to embodiment 1 of the present invention;
fig. 5 is a vertical cross-sectional view of the bypass valve body in the open state according to embodiment 1 of the present invention;
fig. 6 is an explosion diagram of the bypass valve body in embodiment 1 of the integrated valve with adjustable opening pressure according to the present invention.
In the figure: 1-main valve body, 10-backwater flow channel, 11-water outlet flow channel, 12-bypass flow channel, 13-bypass valve seat, 130-buckle perforation, 14-U-shaped buckle, 2-bypass valve body, 20-cylindrical valve sleeve, 200-inward turning edge, 201-internal thread, 202-water inlet, 203-water outlet, 204-upper reaming hole, 205-second sealing ring, 206-third sealing ring, 21-first valve core, 210-valve core end cover, 211-thread section, 212-first assembling section, 213-screwing structure, 214-first sealing ring, 22-second valve core, 220-valve core pressing plate, 221-sealing gasket, 222-second assembling section, 223-outer ring sleeve, 224-pressing plate, 225-fastening bolt and 23-cylindrical pressure spring.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a specific embodiment 1 of opening pressure adjustable integrated valve, as shown in fig. 1 to fig. 6, opening pressure adjustable integrated valve includes the main valve body 1 and the bypass valve body 2, and wherein, the inside of the main valve body 1 is equipped with return water runner 10, play water runner 11 and bypass flow 12. In embodiment 1 of this market, a return water flow channel 10 in a main valve body 1 extends in an L shape, a water outlet flow channel 11 extends back and forth along a horizontal direction, and the return water flow channel 10 and the water outlet flow channel 11 are arranged at intervals, as shown in fig. 1 and 2, a port located on the front side in the drawing is defined as a first port, a port located at the other end of the flow channel is defined as a second port, the first port of the return water flow channel 10 is used for being communicated with a return water pipeline of a heating device, and the heating device can be a heating radiator, a ground heating pipe or the like specifically according to different actual installation scenes; a second port of the water return channel 10 is positioned at the upper end of the middle part, and the second port of the water return channel 10 is connected with a circulating pump (not shown in the figure) and communicated with a water supply pipe of the main heat exchanger through the circulating pump, so that the heat released water can flow back into the main heat exchanger to be reheated and heated; a first port of the water outlet flow passage 11 is communicated with a water outlet pipe of the main heat exchanger, and water heated by the main heat exchanger flows into the water outlet flow passage 11; the second port of the water outlet channel 11 is used for being communicated with a water inlet pipeline of the heating device, so that the hot water is continuously supplied to the heating device.
As shown in fig. 3, the bypass flow channel 12 is disposed between the return flow channel 10 and the outlet flow channel 11, the bypass flow channel 12 extends in the left-right direction, the main valve body 1 is further provided with a bypass valve seat 13 communicating with the bypass flow channel 12, the bypass valve body 2 is hermetically mounted in the bypass valve seat 13, and the water inlet 202 and the water outlet 203 of the bypass valve body 2 are located in the bypass flow channel 12. Specifically, the bypass valve seat 13 is located on the upper side of the water outlet flow channel 11, a through hole communicated with the water outlet flow channel 11 is formed in the lower portion of the bypass valve seat 13, an oblique flow channel extending obliquely is formed in the side face of the bypass valve seat 13, a transverse flow channel is communicated and arranged on the left side of the water return flow channel 10, and the through hole, the oblique flow channel and the transverse flow channel of the bypass valve seat 13 are communicated in sequence to form the bypass flow channel 12. The bypass valve body 2 is hermetically installed in the bypass valve seat 13, and the bypass flow channel 12 is opened and closed through the action of an internal valve core of the bypass valve body 2, so that part of hot water in the water outlet flow channel 11 directly flows to the water return flow channel 10, sufficient water is ensured to flow in a water supply pipe and a water outlet pipe of the main heat exchanger all the time, and the problem of dry burning damage of the main heat exchanger is prevented.
In order to facilitate the installation of the bypass valve body 2 on the main valve body 1, the upper portion of the bypass valve seat 13 is provided with a buckle through hole 130, a U-shaped buckle 14 penetrates through the buckle through hole 130, and two parallel clamping strips of the U-shaped buckle 14 protrude out of the inner wall of the bypass valve seat 13, so that the bypass valve body 2 in the bypass valve seat 13 is blocked, and the bypass valve body 2 is ensured to be stably and reliably assembled in the bypass flow channel 12. In this embodiment, the bypass valve body 2 is a bypass valve body 2 with adjustable opening pressure, the bypass valve body 2 includes a cylindrical valve sleeve 20, a first valve core 21 movably installed in the cylindrical valve sleeve 20, a second valve core 22, and an elastic member, an internal thread 201 is provided at an upper portion of the cylindrical valve sleeve 20, an external thread engaged with the internal thread 201 is provided on the first valve core 21, and a screwing structure 213 is provided at an upper end of the first valve core 21. The purpose of adjusting the opening pressure of the bypass flow channel 12 is achieved by screwing the first valve core 21 to change the jacking acting force of the elastic part, the first valve core 21, the second valve core 22 and the elastic part are all arranged in the cylindrical valve sleeve 20, the whole bypass valve body 2 is stronger in structural integrity, can be assembled on the main valve body 1 as an integral part, is lower in requirement on installation precision, can be directly integrally disassembled and replaced on the bypass valve body 2 if maintenance and replacement are needed, and is favorable for later-stage maintenance and replacement operation.
The screwing structure 213 is specifically a "straight" groove, and a corresponding screwing tool is inserted into the "straight" groove to screw the first valve core 21, and the rotation of the first valve core 21 is converted into rotation or rotation under the cooperation of the internal threads 201, so as to adjust the height position of the first valve core 21 in the cylindrical valve sleeve 20. In order to meet different use requirements, in other embodiments, the screwing structure can also be a cross-shaped groove, a regular polygon groove, a prism structure or the like, and the operation of screwing the first valve core can also be realized. The second valve core 22 is movably mounted on the lower side of the first valve core 21 up and down, the second valve core 22 is in clearance fit with the cylindrical valve sleeve 20, the elastic member is assembled between the first valve core 21 and the second valve core 22 in a jacking mode, the lower portion of the cylindrical valve sleeve 20 is provided with an inward-turning edge 200, the lower portion of the second valve core 22 is provided with a sealing structure, and the sealing structure is in sealing fit with the inward-turning edge 200. And the middle part of the inward-turned edge 200 is provided with a water inlet 202, the side wall of the cylindrical valve sleeve 20 is provided with a water outlet 203, and a valve inner flow passage for communicating the water inlet 202 and the water outlet 203 is formed when the sealing structure is separated from the inward-turned edge 200.
In this embodiment, an upper counterbore 204 is provided on the inner wall of the cylindrical valve sleeve 20 above the internal thread 201, a first sealing ring 214 is provided on the first valve core 21 above the external thread, and the first sealing ring 214 is in sealing fit with the hole wall of the upper counterbore 204. Specifically, the first valve core 21 includes a valve core end cover 210 and a core body, the valve core end cover 210 is fixed on the upper end of the core body, the first sealing ring 214 is disposed between the valve core end cover 210 and the hole wall of the upper counterbore 204, and the core body includes a threaded section 211 provided with external threads, and a first assembling section 212 located on the lower side of the threaded section 211. Also, the spool cover 210, the threaded section 211, and the first fitting section 212 of the first spool 21 are arranged along the same axis, and the outer diameter of the threaded section 211 is larger than that of the first fitting section 212. The first sealing ring 214 is arranged to realize the sealing effect between the first valve core 21 and the cylindrical valve sleeve 20, the integrity of a flow passage in the valve is guaranteed, hot water is prevented from leaking outwards, the threaded section 211 is matched with the internal thread 201 to realize the rotary lifting and rotary lowering actions of the first valve core 21, the outer diameter of the first assembling section 212 is smaller than that of the threaded section 211, the first assembling section 212 can be smoothly assembled in the cylindrical valve sleeve 20, and more importantly, the interference caused by the rotary lifting and rotary lowering actions of the first valve core 21 is avoided.
The second spool 22 includes a spool pressure plate 220 and a second assembly section 222, the sealing structure is provided at a lower side of the spool pressure plate 220, and the elastic member is installed between the first assembly section 212 of the first spool 21 and the second assembly section 222 of the second spool 22. Specifically, the spool pressure plate 220 is further provided with an outer ring sleeve 223, the outer ring sleeve 223 is coaxially arranged on the periphery of the second assembling section 222, and an assembling ring groove is formed between the outer ring sleeve 223 and the second assembling section 222; the elastic piece is a cylindrical pressure spring 23, the upper end of the cylindrical pressure spring 23 is sleeved outside the first assembling section 212 in an interference fit mode, and the lower end of the cylindrical pressure spring 23 is installed in the assembling ring groove in a clearance fit mode.
The cylindrical compression spring 23 is in clearance fit with the second assembling section 222 and the outer ring sleeve 223 of the second valve core 22, so that on one hand, the cylindrical compression spring 23 is ensured to have larger elastic deformation length, and the adjusting range of the opening pressure of the whole bypass valve body 2 is expanded. On the other hand, when the first valve core 21 is screwed, the rotary motion is not transmitted to the second valve core 22, the problem of poor sealing caused by the rotation of the second valve core 22 is prevented, the second valve core 22 is always kept still at the sealing joint position relative to the cylindrical valve sleeve 20, and the sealing effect of the sealing structure on the water inlet 202 is improved.
In order to reduce the shielding area of the second valve core 22 to the water outlet 203, the height of the outer ring sleeve 223 is smaller than that of the second assembling section 222, and after the second valve core 22 is jacked upwards by high-pressure hot water, the outer ring sleeve 223 is not higher than the water outlet 203 all the time, so that a valve inner flow passage near the water outlet 203 is ensured to have a sufficient flow cross section, and the working reliability of the bypass valve body 2 is improved. In this embodiment, the sealing structure includes a sealing gasket 221, a pressing plate 224 and a fastening bolt 225, the pressing plate 224 is disposed at the lower side of the valve core pressing plate 220 of the second valve core 22, the sealing gasket 221 is clamped between the valve core pressing plate 220 and the pressing plate 224, the fastening bolt 225 penetrates the valve core pressing plate 220, the sealing gasket 221 and the pressing plate 224, and the outer contour of the pressing plate 220 is smaller than the inner contour of the water inlet 202. The sealing gasket 221 is fixed in the form of the pressing plate 224 and the fastening bolt 225, so that the mounting reliability between the sealing gasket 221 and the second valve core 22 is improved, and the problem that the sealing gasket 22 falls off is avoided; the outer contour of the compacting plate 220 is designed to be smaller than the inner contour of the water inlet 202, so that the compacting plate 220 is prevented from contacting the inward turned edge 200, and the stability of sealing the water inlet 202 is prevented from being influenced.
In addition, a second sealing ring 205 and a third sealing ring 206 are further sleeved outside the cylindrical valve sleeve 20, the second sealing ring 205 is positioned on the upper side of the water outlet 203, the third sealing ring 206 is positioned on the lower side of the water outlet 203, and the water outlet 203 corresponds to the oblique flow passage of the bypass flow passage. When the bypass valve body 2 is mounted in the bypass valve seat 13, the second sealing ring 205 seals the portion between the cylindrical valve sleeve 20 and the bypass valve seat 13, which is located on the upper side of the water outlet 203, and the third sealing ring 206 seals the portion between the cylindrical valve sleeve 20 and the bypass valve seat 13, which is located on the lower side of the water outlet 203, so as to ensure that hot water can only enter from the water inlet 202 of the cylindrical valve sleeve 20, and jack up the second valve core 22 to flow to the bypass flow passage 12 and the water return flow passage 10 through the valve inner flow passage and the water outlet 203.
The utility model discloses an other concrete embodiments of opening pressure adjustable integrated valve, in order to adapt to different user demands, the elastic component is not only limited to the cylinder pressure spring in concrete embodiment 1, still can replace leaf spring, perhaps elasticity rubber column etc. that a plurality of stromatolites were arranged into, can realize the purpose of elasticity roof pressure second case with sealed water inlet equally.
The utility model discloses an other concrete embodiments of opening pressure adjustable integrated valve, in order to adapt to different user demands, in order to simplify the equipment operation of bypass valve body, can adopt glue adhesive connection between seal gasket and the second case, perhaps set up corresponding joint structure at the upside of seal gasket and the downside of second case, equally can fix the downside at the second case with the seal gasket joint.
The utility model discloses an other embodiments of opening pressure adjustable integrated valve, in order to adapt to different user demands, the unsteady installation form of first case and second case is not only limited to the interval arrangement among embodiment 1, in order to improve the accuracy of action about the second case, can set up the guide sleeve in the lower part of first case, the upper portion at the second case that corresponds sets up and guide sleeve sliding fit's guide post, sliding fit about guide post and the guide sleeve, thereby the accuracy of second case jack-up and pushing down the action has been guaranteed.
The utility model discloses a specific embodiment of the bypass valve body of opening pressure adjustable, with the utility model discloses a each specific embodiment of bypass valve body is the same among the specific implementation of the integrated valve of opening pressure adjustable, no longer gives details here.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. A bypass valve body with adjustable opening pressure is characterized by comprising a cylindrical valve sleeve, a first valve core, a second valve core and an elastic element, wherein the first valve core, the second valve core and the elastic element are movably arranged in the cylindrical valve sleeve;
the second valve core is movably arranged on the lower side of the first valve core up and down, the second valve core is in clearance fit with the cylindrical valve sleeve, the elastic part is assembled between the first valve core and the second valve core in a jacking mode, the lower portion of the cylindrical valve sleeve is provided with an inward-turning edge, the lower portion of the second valve core is provided with a sealing structure, and the sealing structure is in sealing fit with the inward-turning edge;
the middle part of the inward turning edge is provided with a water inlet, the side wall of the cylindrical valve sleeve is provided with a water outlet, and when the sealing structure is jacked up and separated from the inward turning edge, an in-valve flow channel is formed by communicating the water inlet and the water outlet.
2. The bypass valve body with adjustable opening pressure as claimed in claim 1, wherein the cylindrical valve sleeve is provided at an upper portion thereof with an internal thread, and the first valve core is provided with an external thread engaged with the internal thread; the inner wall of the cylindrical valve sleeve is positioned on the upper portion of the internal thread and is provided with an upper reaming hole, the first valve core is positioned on the upper portion of the external thread and is provided with a first sealing ring, and the first sealing ring is in sealing fit with the hole wall of the upper reaming hole.
3. The bypass valve body with adjustable opening pressure as claimed in claim 2, wherein the first valve core includes a valve core end cap and a core body, the valve core end cap is fixed on the upper end of the core body, the first sealing ring is disposed between the valve core end cap and the hole wall of the upper counterbore, and the core body includes a threaded section provided with the external thread, and a first assembling section located on the lower side of the threaded section.
4. The bypass valve body with adjustable opening pressure as claimed in claim 3, wherein the valve core end cap, the threaded section and the first assembling section are arranged along the same axis, and the outer diameter of the threaded section is larger than that of the first assembling section.
5. The variable opening pressure bypass valve body of claim 3, wherein the second valve core includes a valve core pressure plate and a second assembly section, the sealing structure is disposed on a lower side of the valve core pressure plate, and the elastic member is installed between the first assembly section and the second assembly section.
6. The bypass valve body with adjustable opening pressure as claimed in claim 5, wherein the valve core pressure plate is further provided with an outer ring sleeve, the outer ring sleeve is coaxially arranged on the outer periphery of the second assembling section, and an assembling ring groove is formed between the outer ring sleeve and the second assembling section; the elastic part is a cylindrical pressure spring, the upper end of the cylindrical pressure spring is sleeved in an interference mode outside the first assembling section, and the lower end of the cylindrical pressure spring is installed in the assembling ring groove in a clearance fit mode.
7. The adjustable cracking pressure bypass valve as recited in claim 6, wherein the outer collar has a height less than a height of the second assembly section.
8. The bypass valve body with adjustable opening pressure as claimed in claim 5, wherein the sealing structure comprises a sealing gasket, a pressing plate and a fastening bolt, the pressing plate is disposed on the lower side of the valve core pressing plate, the sealing gasket is tightly mounted between the valve core pressing plate and the pressing plate, the fastening bolt penetrates through the valve core pressing plate, the sealing gasket and the pressing plate, and the outer contour of the pressing plate is smaller than the inner contour of the water inlet.
9. The bypass valve body with adjustable opening pressure as claimed in claim 1, wherein a second sealing ring and a third sealing ring are further sleeved outside the cylindrical valve housing, the second sealing ring is located on the upper side of the water outlet, and the third sealing ring is located on the lower side of the water outlet.
10. An integrated valve with adjustable opening pressure, which is characterized by comprising a main valve body and a bypass valve body, wherein a return water flow passage, a water outlet flow passage and a bypass flow passage are arranged in the main valve body, a bypass valve seat communicated with the bypass flow passage is further arranged on the main valve body, the bypass valve body is hermetically installed in the bypass valve seat, the bypass valve body is the bypass valve body with adjustable opening pressure as claimed in any one of claims 1 to 9, and a water inlet and a water outlet of the bypass valve body are positioned in the bypass flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561696.6U CN212080276U (en) | 2020-04-15 | 2020-04-15 | Opening pressure adjustable integrated valve and bypass valve body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020561696.6U CN212080276U (en) | 2020-04-15 | 2020-04-15 | Opening pressure adjustable integrated valve and bypass valve body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212080276U true CN212080276U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020561696.6U Active CN212080276U (en) | 2020-04-15 | 2020-04-15 | Opening pressure adjustable integrated valve and bypass valve body thereof |
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| Country | Link |
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| CN (1) | CN212080276U (en) |
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2020
- 2020-04-15 CN CN202020561696.6U patent/CN212080276U/en active Active
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