CN110966433A - Joint and water heater - Google Patents
Joint and water heater Download PDFInfo
- Publication number
- CN110966433A CN110966433A CN201911226460.5A CN201911226460A CN110966433A CN 110966433 A CN110966433 A CN 110966433A CN 201911226460 A CN201911226460 A CN 201911226460A CN 110966433 A CN110966433 A CN 110966433A
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- Prior art keywords
- channel
- water
- pressure relief
- return
- water inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
- F16K11/0853—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/184—Combined check valves and actuated valves
- F16K15/1848—Check valves combined with valves having a rotating tap or cock
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Domestic Plumbing Installations (AREA)
Abstract
The invention discloses a joint and discloses a water heater with the joint, wherein the joint comprises: the water inlet channel, the water return channel and the mounting channel are arranged on the inner side of the shell, a main water inlet is arranged on the lower side of the water inlet channel, a main water outlet is arranged on the upper side of the water inlet channel, a water return port is arranged on the left side of the water return channel, the left side of the mounting channel is communicated with the water inlet channel, and a mounting port is arranged on the right side of the mounting channel; the backwater one-way valve is connected in the backwater channel; and the sealing element is connected in the mounting channel in a sealing mode. The main water outlet of the joint is connected with the water inlet of an external water heater, and when the joint is applied to a pipeline with a return pipe, external cold water and return water enter the water heater through the main water outlet; when the water heater is applied to a pipeline without a return pipe, the external water inlet pipe is connected with the main water inlet, and water cannot flow out of the return port due to the fact that the return one-way valve is arranged in the return channel, so that the water heater with the two interfaces can be suitable for pipelines with the return pipe and without the return pipe.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a connector and a water heater.
Background
In order to realize the function of instant heating and opening, the zero-cold water heater needs to form a closed circulation loop between the water heater and a water using end, so that hot water can be heated in the circulation loop within a certain range before the hot water is used, and the hot water can be discharged by opening the water using end. The current circulation loop has two structures, one is that three interfaces are arranged on the water heater: the household water heater comprises a water inlet, a hot water outlet and a water return port, wherein three pipes, namely a water inlet pipe, a hot water outlet pipe and a water return pipe, are correspondingly arranged in a user's home, and the water heater, the hot water outlet pipe and the water return pipe form a circulation loop; the other is that two interfaces are arranged on the water heater: the water heater comprises a water inlet, a hot water outlet, a water inlet pipe and a hot water outlet pipe, wherein the two pipes, namely the water inlet pipe and the hot water outlet pipe, are correspondingly arranged in a user house, a water return pipe is not arranged, and the water heater, the hot water outlet pipe and the water inlet pipe form a circulation loop. Because more connecting structures are needed in the water heater with the three interfaces, the manufacturing cost of the water heater with the two interfaces is lower than that of the water heater with the three interfaces, and the water heater with the two joints is more and more popular; the water heaters with the two joints need to consider how to adapt to the use of the user home with the water return pipe and the use of the user home without the water return pipe at the same time, and the applicability of the water heaters is expanded.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. The invention proposes a joint for this purpose, which enables a water heater provided with two connections to be used in pipelines with and without return pipes.
The invention also provides a water heater with the joint.
A joint according to an embodiment of the first aspect of the invention comprises: the water inlet channel is vertically arranged on the inner side of the shell, the water return channel is arranged along the left-right direction, and the mounting channel is arranged along the left-right direction; the water return one-way valve is connected in the water return channel, and the water flowing direction of the water return one-way valve is the direction from the water return channel to the water inlet channel; a seal member sealingly coupled within the mounting channel.
The joint according to the embodiment of the invention has at least the following beneficial effects: when the joint is applied to a pipeline with a water return pipe, an external water inlet pipe is connected with the main water inlet, an external water return pipe is connected with a water return port, and external cold water and return water enter the water heater through the main water outlet; when the water heater is applied to a pipeline without a return pipe, the external water inlet pipe is connected with the main water inlet, and water cannot flow out of the return port due to the fact that the return one-way valve is arranged in the return channel, so that the water heater with the two interfaces can be suitable for pipelines with the return pipe and without the return pipe.
According to some embodiments of the present invention, the left end of the sealing member is disposed in the water return channel, the sealing member is rotatably connected to the mounting channel, the sealing member is axially fixed to the mounting channel, a first water passing channel is disposed in the sealing member along the left-right direction, the first water passing channel is communicated with the water return channel, a second water passing channel is further disposed in the sealing member, the second water passing channel is perpendicular to the first water passing channel, the second water passing channel is communicated with the water inlet channel, the second water passing channel is disposed corresponding to the water inlet channel, a first sealing ring is disposed between the outer periphery of the sealing member and the mounting channel, and a rotation adjusting portion is disposed at the right end of the sealing member.
According to some embodiments of the present invention, the housing is provided with a positioning screw hole perpendicular to the installation channel, the outer periphery of the sealing member is provided with a sliding groove extending in the circumferential direction, the positioning screw hole is aligned with the sliding groove, a positioning screw is connected in the positioning screw hole, and the tail end of the positioning screw is arranged in the sliding groove.
According to some embodiments of the invention, a positioning shoulder is arranged in the water return channel, the right end of the water return check valve abuts against the positioning shoulder, the left end of the sealing element abuts against the right end of the water return check valve, and the first water passing channel and the water return channel are coaxially arranged.
According to some embodiments of the present invention, the backwater check valve includes a left shell and a right shell connected to each other, a left side of the left shell abuts against the positioning shoulder, a right side of the right shell abuts against a left end of the sealing member, a second sealing ring is disposed between an outer periphery of the left shell and the backwater channel, a water inlet is disposed on the left side of the left shell, a water outlet is disposed on the right side of the right shell, the water inlet, the water outlet and the water inlet channel are communicated, a backwater valve core is disposed in the left shell, a backwater spring is connected to the right side of the backwater valve core, a right side of the backwater spring abuts against the right shell, a third sealing ring is disposed on the left side of the backwater valve core, and the third sealing ring abuts against the water inlet.
According to some embodiments of the invention, a pressure relief channel is arranged in the sealing element along the left-right direction, the left side of the pressure relief channel is communicated with the water return channel, the right side of the pressure relief channel is provided with a pressure relief opening, and a pressure relief valve is arranged in the pressure relief channel.
According to some embodiments of the invention, the pressure relief channel comprises a left pressure relief channel and a right pressure relief channel communicating with each other, the pipe diameter of the right pressure relief channel is larger than that of the left pressure relief channel, the pressure relief valve comprises a pressure relief valve core arranged in the right pressure relief channel, a spring installation groove is arranged on the right side of the pressure relief valve core, a pressure relief spring is arranged in the spring installation groove, a clamping groove is circumferentially arranged on the inner wall of the right pressure relief channel, a clamping spring is clamped in the clamping groove, the clamp spring is arranged on the right side of the pressure relief valve core, a pressure relief top ring is arranged between the clamp spring and the pressure relief valve core, the right side of the pressure relief top ring abuts against the left side of the clamp spring, the right side of the pressure relief spring abuts against the left side of the pressure relief top ring, and a sealing gasket is arranged on the left end surface of the pressure relief valve core and is abutted against the right end of the left pressure relief channel.
A water heater according to an embodiment of the second aspect of the invention includes a fitting according to the above-described embodiment of the first aspect of the invention.
The water heater provided by the embodiment of the invention at least has the following beneficial effects: by adopting the joint, the joint can be suitable for pipelines with or without a return pipe.
The invention is used for the water heater.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a cross-sectional view of a fitting according to an embodiment of the present invention;
FIG. 2 is a perspective view of a joint according to an embodiment of the present invention;
FIG. 3 is a partial view of A of FIG. 1;
FIG. 4 is a partial view of B of FIG. 1;
FIG. 5 is a schematic view of a water heater according to an embodiment of the present invention connected to a pipe having a return pipe;
FIG. 6 is a schematic diagram of a water heater connected to a pipe without a return pipe according to an embodiment of the present invention.
In the drawings: 101-shell, 102-water inlet channel, 103-water return channel, 105-total water inlet, 106-total water outlet, 107-water return port, 109-positioning shoulder, 201-water return one-way valve, 202-left shell, 203-right shell, 204-second sealing ring, 205-water inlet hole, 206-water return valve core, 207-water return spring, 208-third sealing ring, 301-sealing member, 302-first water passage, 303-second water passage, 304-first sealing ring, 306-positioning screw, 307-pressure relief channel, 308-pressure relief port, 309-pressure relief valve, 310-pressure relief valve core, 311-pressure relief spring, 312-snap spring, 313-pressure relief top ring, 314-sealing gasket, 401-hot water outlet, 402-water heater, 403-water return pipe, 404-water inlet pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise explicitly defined, terms such as provided, connected and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention by combining the specific contents of the technical solutions.
A joint according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 6.
The joint includes: the water inlet channel 102, the water return channel 103 and the mounting channel are arranged on the inner side of the shell 101, the water inlet channel 102 is vertically arranged, the water return channel 103 is arranged along the left-right direction, the mounting channel is arranged along the left-right direction, the water return channel 103 and the mounting channel are respectively arranged on the left side and the right side of the water inlet channel 102, the lower side of the water inlet channel 102 is provided with a total water inlet 105, the upper side of the water inlet channel 102 is provided with a total water outlet 106, the right side of the water return channel 103 is communicated with the water inlet channel 102, the left side of the water return channel 103 is provided with a water return port 107, the left side of the mounting channel is; the return water one-way valve 201 is connected in the return water channel 103, and the water flowing direction of the return water one-way valve 201 is the direction from the return water channel 103 to the water inlet channel 102; and the sealing member 301 is connected in the mounting channel in a sealing mode.
The backwater check valve 201 is installed from the installation port through the installation passage into the backwater passage 103, and then the installation port is sealed with a sealing member 301 to prevent water leakage. The main water outlet 106 of the joint is connected with the water inlet of an external water heater 402, when the joint is applied to a pipeline with a water return pipe 403, an external water inlet pipe 404 is connected with the main water inlet 105, and the external water return pipe 403 is connected with a water return port 107; during cyclic heating, return water enters the water heater 402 through the water return port 107 and the main water outlet 106; when water is used, external cold water and return water simultaneously enter the water heater 402 through the main outlet 106. When the water return pipe 403 is applied to a pipeline without a water return pipe, the external water inlet pipe 404 is connected with the main water inlet 105, the water return port 107 is empty, and water cannot flow out of the water return port 107 due to the fact that the water return one-way valve 201 is arranged in the water return channel 103; during cyclic heating, return water enters the water heater 402 through the external water inlet pipe 404 and the main water inlet 105 and the main water outlet 106; when water is used, hot water does not flow back into the mains water inlet 105 into the water heater 402 because the water inlet pipe 404 is filled with cold water.
The joint is used on a water heater 402 with a water inlet and a hot water outlet 401 without a water return port 107, so that the water heater 402 can be conveniently suitable for pipelines with a water return pipe 403 and pipelines without the water return pipe 403, and the applicability of the water heater 402 is expanded; changing the three-tap water heater 402 to a two-tap water heater 402 reduces the manufacturing cost of the water heater 402. The existing water heater 402 with two joints is suitable for a pipeline with a return pipe 403, a T-shaped valve is additionally arranged at a water inlet of the water heater 402, a plurality of pipeline interfaces are additionally required to be arranged, the installation is inconvenient, and the hidden danger of water leakage caused by the improper installation is increased. The user can also remove the seal 301 to drain the water heater 402 and the plumbing directly.
In some embodiments of the present invention, the left end of the sealing element 301 is disposed in the water returning channel 103, the sealing element 301 is rotatably connected to the mounting channel, the sealing element 301 and the mounting channel are axially fixed, a first water passing channel 302 is disposed in the sealing element 301 along the left-right direction, the first water passing channel 302 is communicated with the water returning channel 103, a second water passing channel 303 is further disposed in the sealing element 301, the second water passing channel 303 is perpendicular to the first water passing channel 302, the second water passing channel 303 is communicated with the water inlet channel 102, the second water passing channel 303 is disposed corresponding to the water inlet channel 102, a first sealing ring 304 is disposed between the outer periphery of the sealing element 301 and the mounting channel, and a rotation adjusting portion is disposed at the right end of the sealing element 301.
The return water can enter the second water return channel 103 through the first water return channel 103 and then enter the water inlet channel 102. By rotating the rotating adjusting part, the relative angle between the second water passing channel 303 and the water inlet channel 102 can be adjusted, and the size of the water passing opening formed between the second water passing channel 303 and the water inlet channel 102 is adjusted, so that the amount of water entering the water heater 402 from the main water inlet 105 is adjusted. The first sealing ring 304 serves to maintain the seal between the seal 301 and the mounting channel against water outflow. After the sealing member 301 is rotated to adjust the water amount, the first sealing ring 304 is pressed against the mounting channel and the sealing member 301 due to the sealing effect of the first sealing ring 304, so that the sealing member 301 can maintain the rotating angle, and the water flow cannot rotate the sealing member 301.
In some embodiments of the present invention, the housing 101 is provided with a positioning screw hole perpendicular to the installation channel, the sealing member 301 is provided with a sliding groove extending circumferentially on the outer periphery thereof, the positioning screw hole is aligned with the sliding groove, a positioning screw 306 is connected in the positioning screw hole, the end of the positioning screw 306 is disposed in the sliding groove, and the circumferential locking member includes the positioning screw 306. The set screw 306 is connected in the set screw hole, and the end of the set screw 306 extends into the slide slot to axially position the sealing member 301. The spout extends along circumference, and the rotation that sealing member 301 was not influenced in the spout to set screw 306's end, and two tip of spout can also carry on spacingly to rotation angle.
In some embodiments of the present invention, a positioning shoulder 109 is disposed in the water return channel 103, a right end of the water return check valve 201 abuts against the positioning shoulder 109, a left end of the sealing member 301 abuts against a right end of the water return check valve 201, and the first water passing channel 302 is disposed coaxially with the water return channel 103. The backwater check valve 201 is installed in the backwater channel 103 from the installation channel, the left end of the backwater check valve 201 is abutted to the positioning shoulder 109, and the left end of the sealing element 301 is abutted to the right end of the backwater check valve 201, so that the installation is convenient.
In some embodiments of the present invention, the backwater check valve 201 includes a left shell 202 and a right shell 203 connected to each other, a left side of the left shell 202 abuts against the positioning shoulder 109, a right side of the right shell 203 abuts against a left end of the sealing member 301, a second sealing ring 204 is disposed between an outer periphery of the left shell 202 and the backwater channel 103, a left side of the left shell 202 is provided with a water inlet 205, a right side of the right shell 203 is provided with a water outlet, the water inlet 205, the water outlet and the water inlet channel 102 are communicated, a backwater valve element 206 is disposed in the left shell 202, a right side of the backwater valve element 206 is connected to a backwater spring 207, a right side of the backwater spring 207 abuts against the right shell 203, a left side of the backwater valve element 206 is provided with a. The left end of the sealing piece 301 abuts against the right shell 203, and the left end of the left shell 202 abuts against the positioning shoulder 109, so that the return water one-way valve 201 is fixed in the return water channel 103. The return spring 207 presses the return valve core 206 to the left against the water outlet hole, and when the return port 107 is connected with the return pipe 403, the return water pushes the return valve core 206 to the right and enters the water inlet channel 102; when the water return port 107 is not connected to the water return pipe 403, water in the water inlet channel 102 is pressed to the right by the water return valve core 206 against the water inlet hole 205, and water cannot flow out of the water inlet hole 205.
In some embodiments of the present invention, a pressure relief channel 307 is disposed in the sealing member 301 along the left-right direction, the left side of the pressure relief channel 307 is communicated with the water return channel 103, the right side of the pressure relief channel 307 is disposed with a pressure relief port 308, and a pressure relief valve 309 is disposed in the pressure relief channel 307. When the water pressure in the pipeline is too high, the water pressure causes the pressure release valve 309 to open and discharge part of the water, and the water pressure in the pipeline can be reduced.
In some embodiments of the present invention, the pressure relief channel 307 includes a left pressure relief channel and a right pressure relief channel that are communicated with each other, a pipe diameter of the right pressure relief channel is greater than a pipe diameter of the left pressure relief channel, the pressure relief valve 309 includes a pressure relief valve core 310 disposed in the right pressure relief channel, a spring mounting groove is disposed on a right side of the pressure relief valve core 310, a pressure relief spring 311 is disposed in the spring mounting groove, a circumferentially disposed clamping groove is disposed on an inner wall of the right pressure relief channel, a clamping spring 312 is clamped in the clamping groove, the clamping spring 312 is disposed on a right side of the pressure relief valve core 310, a pressure relief top ring 313 is disposed between the clamping spring 312 and the pressure relief valve core 310, a right side of the pressure relief top ring 313 abuts against a left side of the clamping spring 312, a right side of the pressure relief spring 311 abuts.
The clamp spring 312 is used for providing a supporting force for axial fixation; the pressure relief top ring 313 is abutted against the snap spring 312 and provides a contact action point for the pressure relief spring 311; the pressure relief spring 311 presses the pressure relief valve core 310 leftwards to abut against the right end of the left pressure relief channel for sealing, and the sealing gasket 314 can improve the sealing performance. When the water pressure is higher than the pressure of the relief spring 311, the water pushes the relief valve core 310 to the right to compress the relief spring 311 for relief drainage.
The joint integrates the functions of water inlet, water return, water regulation, water drainage and pressure relief, meets various functional requirements, and is convenient to use.
A water heater according to an embodiment of the second aspect of the invention includes a fitting according to the above-described embodiment of the first aspect of the invention.
The water heater according to the embodiment of the invention can be applied to pipelines with the water return pipe 403 and without the water return pipe 403 by adopting the joint, so that the water quantity and the water discharge are convenient to adjust, and the water pressure of the pipelines is convenient to limit.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments, and various equivalent modifications or substitutions can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (8)
1. A fitting, comprising:
the water inlet channel is vertically arranged on the inner side of the shell, the water return channel is arranged along the left-right direction, and the mounting channel is arranged along the left-right direction;
the water return one-way valve is connected in the water return channel, and the water flowing direction of the water return one-way valve is the direction from the water return channel to the water inlet channel;
a seal member sealingly coupled within the mounting channel.
2. The joint of claim 1, wherein the left end of the sealing member is disposed in the water return channel, the sealing member is rotatably connected to the mounting channel, the sealing member is axially fixed to the mounting channel, a first water passing channel is disposed in the sealing member along the left-right direction, the first water passing channel is communicated with the water return channel, a second water passing channel is further disposed in the sealing member, the second water passing channel is perpendicular to the first water passing channel, the second water passing channel is communicated with the water inlet channel, the second water passing channel is disposed corresponding to the water inlet channel, a first sealing ring is disposed between the periphery of the sealing member and the mounting channel, and a rotation adjusting portion is disposed at the right end of the sealing member.
3. The joint according to claim 2, wherein said housing has a positioning screw hole perpendicular to said mounting channel, said sealing member has a circumferentially extending sliding groove at its outer periphery, said positioning screw hole is aligned with said sliding groove, a positioning screw is connected to said positioning screw hole, and a distal end of said positioning screw is disposed in said sliding groove.
4. The joint of claim 2, wherein a positioning shoulder is arranged in the water return channel, the right end of the water return one-way valve abuts against the positioning shoulder, the left end of the sealing element abuts against the right end of the water return one-way valve, and the first water passing channel and the water return channel are coaxially arranged.
5. The joint of claim 4, wherein the backwater check valve comprises a left shell and a right shell which are connected with each other, the left side of the left shell is abutted against the positioning shoulder, the right side of the right shell is abutted against the left end of the sealing element, a second sealing ring is arranged between the periphery of the left shell and the backwater channel, the left side of the left shell is provided with a water inlet, the right side of the right shell is provided with a water outlet, the water inlet, the water outlet and the water inlet channel are communicated, a backwater valve core is arranged in the left shell, the right side of the backwater valve core is connected with a backwater spring, the right side of the backwater spring is abutted against the right shell, the left side of the backwater valve core is provided with a third sealing ring, and the third sealing ring is abutted against the water inlet.
6. The joint according to any one of claims 1 to 5, wherein a pressure relief channel is arranged in the sealing element in the left-right direction, the left side of the pressure relief channel is communicated with the water return channel, the right side of the pressure relief channel is provided with a pressure relief opening, and a pressure relief valve is arranged in the pressure relief channel.
7. The fitting according to claim 6, wherein said pressure relief passage comprises left and right pressure relief passages in communication with each other, the pipe diameter of the right pressure relief channel is larger than that of the left pressure relief channel, the pressure relief valve comprises a pressure relief valve core arranged in the right pressure relief channel, a spring installation groove is arranged on the right side of the pressure relief valve core, a pressure relief spring is arranged in the spring installation groove, a clamping groove is circumferentially arranged on the inner wall of the right pressure relief channel, a clamping spring is clamped in the clamping groove, the clamp spring is arranged on the right side of the pressure relief valve core, a pressure relief top ring is arranged between the clamp spring and the pressure relief valve core, the right side of the pressure relief top ring abuts against the left side of the clamp spring, the right side of the pressure relief spring abuts against the left side of the pressure relief top ring, and a sealing gasket is arranged on the left end surface of the pressure relief valve core and is abutted against the right end of the left pressure relief channel.
8. A water heater comprising a joint according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226460.5A CN110966433A (en) | 2019-12-04 | 2019-12-04 | Joint and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911226460.5A CN110966433A (en) | 2019-12-04 | 2019-12-04 | Joint and water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110966433A true CN110966433A (en) | 2020-04-07 |
Family
ID=70032946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911226460.5A Pending CN110966433A (en) | 2019-12-04 | 2019-12-04 | Joint and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110966433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524678A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Water supply system |
| CN113790528A (en) * | 2021-07-19 | 2021-12-14 | 广东万家乐燃气具有限公司 | Joint for reducing water cut-off temperature rise and gas quick water heater |
-
2019
- 2019-12-04 CN CN201911226460.5A patent/CN110966433A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524678A (en) * | 2020-11-30 | 2021-03-19 | 芜湖美的厨卫电器制造有限公司 | Water supply system |
| CN113790528A (en) * | 2021-07-19 | 2021-12-14 | 广东万家乐燃气具有限公司 | Joint for reducing water cut-off temperature rise and gas quick water heater |
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