CN211315224U

CN211315224U - Joint and water heater

Info

Publication number: CN211315224U
Application number: CN201922156222.3U
Authority: CN
Inventors: 艾穗江; 黄城洪; 邓海燕; 陈仕超; 孙智
Original assignee: Guangdong Macro Gas Appliance Co Ltd
Current assignee: Guangdong Macro Gas Appliance Co Ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-08-21
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a joint to a water heater with connect is disclosed, wherein connect and include: 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

Joint and water heater

Technical Field

The utility model relates to a water heater technical field, in particular to connect and 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.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a joint can make the water heater that is equipped with two interfaces be applicable to in having the wet return and the pipeline that does not have the wet return.

The utility model discloses still provide a water heater that has above-mentioned joint.

According to the utility model discloses a joint of first aspect embodiment, include: 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.

According to the utility model discloses connect, following beneficial effect has at least: 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 utility model, the left end of sealing member is located in the return water passageway, the sealing member with the installation passageway rotates to be connected, the sealing member with installation passageway axial fixity, be equipped with the first water channel that crosses that sets up along left right direction in the sealing member, first water channel with return water channel intercommunication, still be equipped with second water channel in the sealing member, second water channel perpendicular to first water channel, second water channel with water channel intercommunication, second water channel with water channel position corresponds the setting, the periphery of sealing member with be equipped with first sealing washer between the installation passageway, the right-hand member of sealing member is equipped with the rotation regulating part.

According to some embodiments of the utility model, be equipped with the perpendicular to on the casing the location screw of installation passageway, the periphery of sealing member is equipped with the spout of circumference extension, the location screw is just right the spout, the internal connection of location screw has set screw, set screw's end is located in the spout.

According to some embodiments of the utility model, be equipped with the location shoulder in the return water passageway, the right-hand member butt of return water check valve in the location is shouldered, the left end butt of sealing member in the right-hand member of return water check valve, first water passageway with return water passageway coaxial setting.

According to some embodiments of the utility model, the return water check valve includes interconnect's left shell and right shell, the left side butt of left shell with the location is shouldered, the right side butt of right side shell in the left end of sealing member, the periphery of left shell with be equipped with the second sealing washer between the return water passageway, the left side of left shell is equipped with the inlet opening, the right side of right side shell is equipped with the apopore, the inlet opening the apopore with the inlet passage intercommunication, be equipped with the return water case in the left shell, the right side of return water case is connected with return water spring, return water spring's right side butt is in on the right side shell, the left side of return water case is equipped with the third sealing washer, the third sealing washer with the inlet opening butt.

According to the utility model discloses a some embodiments, be equipped with the pressure release passageway that sets up along left right direction in the sealing member, pressure release passageway's left side with return water channel intercommunication, pressure release passageway's right side is equipped with the pressure release mouth, be equipped with the relief valve in the pressure release passageway.

According to some embodiments of the present invention, the pressure relief passage comprises a left pressure relief passage and a right pressure relief passage 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.

According to the utility model discloses a water heater of second aspect embodiment, include according to the utility model discloses the joint of above-mentioned first aspect embodiment.

According to the utility model discloses water heater has following beneficial effect at least: by adopting the joint, the joint can be suitable for pipelines with or without a return pipe.

The utility model 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 represent 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 these figures without inventive effort.

Fig. 1 is a cross-sectional view of a joint 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 pipeline having a water return pipe;

fig. 6 is a schematic view of the water heater according to the embodiment of the present invention connected to a pipeline without a return pipe.

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 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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, left, right, etc., referred to the orientation description is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification 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, words such as set forth, connected, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the words 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 utility model, the left end of sealing member 301 is located in return water passageway 103, sealing member 301 rotates with the installation passageway and is connected, sealing member 301 and installation passageway axial fixity, be equipped with the first water channel 302 of crossing that sets up along the left and right directions in the sealing member 301, first water channel 302 communicates with return water passageway 103, still be equipped with second water channel 303 in the sealing member 301, second water channel 303 is perpendicular to first water channel 302 of crossing, second water channel 303 communicates with inhalant canal 102, second water channel 303 corresponds the setting with inhalant canal 102 position, be equipped with first sealing washer 304 between the periphery of sealing member 301 and the installation passageway, the right-hand member of sealing member 301 is equipped with the rotation regulating part.

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 utility model, be equipped with the location screw of perpendicular to installation passageway on casing 101, sealing member 301's periphery is equipped with the spout of circumference extension, and the location screw is just to the spout, and the location is connected with set screw 306 in the screw, and in the spout was located to set screw 306's end, the circumference locking piece included set 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 returning channel 103, the right end of the water returning check valve 201 abuts against the positioning shoulder 109, the left end of the sealing member 301 abuts against the right end of the water returning check valve 201, and the first water passing channel 302 and the water returning channel 103 are coaxially disposed. 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 utility model, the return water check valve 201 includes interconnect's left shell 202 and right shell 203, left side butt and the location of left shell 202 are shouldered 109, the right side butt of right shell 203 is in the left end of sealing member 301, be equipped with second sealing washer 204 between the periphery of left shell 202 and the return water passageway 103, the left side of left shell 202 is equipped with inlet opening 205, the right side of right shell 203 is equipped with the apopore, inlet opening 205, apopore and inlet channel 102 intercommunication, be equipped with return water case 206 in the left shell 202, the right side of return water case 206 is connected with return water spring 207, return water spring 207's right side butt is on right shell 203, return water case 206's left side is equipped with third sealing washer 208, third sealing washer 208 and inlet opening 205 butt. 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.

The utility model discloses a some embodiments are equipped with the pressure release passageway 307 that sets up along the left and right directions in the sealing member 301, and the left side and the return water passageway 103 intercommunication of pressure release passageway 307, the right side of pressure release passageway 307 are equipped with pressure release mouth 308, are equipped with relief valve 309 in the pressure release passageway 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.

The utility model discloses a in some embodiments, pressure release channel 307 is including left pressure release channel and the right pressure release channel that communicates each other, right side pressure release channel's pipe diameter is greater than left pressure release channel's pipe diameter, pressure release valve 309 is including the pressure release case 310 of locating in the right pressure release channel, the right side of pressure release case 310 is equipped with the spring mounting groove, be equipped with pressure release spring 311 in the spring mounting groove, be equipped with the draw-in groove of circumference setting on the inner wall of right side pressure release channel, the joint has jump ring 312 in the draw-in groove, the right side of pressure release case 310 is located to jump ring 312, be equipped with pressure release apical ring 313 between jump ring 312 and the pressure release case 310, the right side butt of pressure release apical ring 313, the right side butt of pressure release spring 311 is in the left side of pressure release apical ring 313, be equipped with sealed.

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.

According to the utility model discloses water heater of second aspect embodiment, include according to the utility model discloses the joint of above-mentioned first aspect embodiment.

According to the utility model discloses water heater, through adopting foretell joint, can be applicable to in the pipeline that has wet return 403 and no wet return 403, make things convenient for regulating pondage, drainage and the water pressure of convenient restriction pipeline.

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 above embodiments, and various equivalent modifications or substitutions can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

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.