CN215446868U

CN215446868U - Water heater

Info

Publication number: CN215446868U
Application number: CN202121784182.8U
Authority: CN
Inventors: 王�华; 吴东奇; 王通
Original assignee: AO Smith China Water Heater Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-07
Anticipated expiration: 2031-08-02

Abstract

The present invention provides a water heater, comprising: an inner container with a connection port; an insulated joint connected with the connection port; a pipe body penetrating through the insulating joint, wherein one end of the pipe body extends into the inner container; the body includes the insulating tube, insulating tube and insulating joint sealing connection. According to the utility model, the insulating joint is arranged to be connected with the inner container, and the insulating pipe is arranged to be in sealing connection with the insulating joint, so that the installation operation of the pipe body is simplified, and the installation is convenient and rapid.

Description

Water heater

Technical Field

The utility model relates to the technical field of water heaters, in particular to a water heater.

Background

The existing water heater generally adopts the technology of an electricity-proof wall in the aspect of electricity leakage prevention protection. The technology is characterized in that a large resistor is additionally arranged between a human body and water, the resistor is realized by installing an insulating tube with the length being larger than about 53 times of the square of the radius of an inner hole at a water inlet or a water outlet, when water in an inner container flows out after passing through the longer insulating tube, the water in the insulating tube acts as a series circuit, the resistance value is large, the partial pressure is high, and therefore when the water flows out of the insulating tube and then flows to the human body, the partial pressure on the human body is low, the human body cannot be injured, and the safety is high.

However, the existing electricity-proof wall and liner are complex in installation structure and high in assembly difficulty, and if the installation is not in place, the insulation function is lost, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water heater, which solves the problems of complex installation structure and high assembly difficulty of an electricity-proof wall and an inner container of the existing water heater.

In order to achieve the above object, the present invention provides a water heater, comprising: an inner container with a connection port; an insulated joint connected to the connection port; the pipe body penetrates through the insulating joint, and one end of the pipe body extends into the inner container; the pipe body comprises an insulating pipe, and the insulating pipe is connected with the insulating joint in a sealing mode.

The water heater comprises a water tank, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the water tank is provided with a water inlet pipe and a water outlet pipe; the part of the insulating joint close to the first end is connected with the connecting port; and the part of the insulating joint close to the second end is hermetically connected with the insulating pipe.

The water heater as described above, wherein the water heater further comprises a seal disposed between the insulation tube and the insulation joint; the seal is proximate the second end.

The water heater as described above, wherein the pipe further includes an outer pipe sleeved outside the insulating pipe, the insulating pipe has an extended end located outside the outer pipe, the sealing member is sleeved on an outer wall of the extended end, and the extended end is hermetically connected to an inner wall of the insulating joint through the sealing member.

The water heater as described above, wherein the outer wall of the protruding end is provided with a limiting protrusion, the limiting protrusion abuts against the end surface of the outer tube, and the insulating tube is in clearance fit with the outer tube.

The water heater as described above, wherein a portion of the insulation joint near the second end is used for connecting a user water pipe, and the sealing member has a sealing flange abutting against an end face of the second end of the insulation joint, and the sealing flange can seal between the insulation joint and the user water pipe.

The water heater as described above, wherein the insulating tube and the insulating joint are circumferentially positioned by a groove and a protrusion.

The water heater as described above, wherein the portion of the insulating joint near the first end has a flange for connecting with the connection port, and the flange is provided with a sealing ring for sealing between the flange and the connection port.

The water heater comprises a water heater body, wherein the insulating joint is arranged at the first end of the water heater body, the insulating joint is arranged at the second end of the water heater body, the insulating joint is arranged at the first end of the water heater body, the insulating joint is arranged in the connecting port, an inserting portion used for inserting portion is arranged in the connecting port, an outer step used for abutting against an inner step on the inner wall of the connecting port is arranged on the outer wall of the inserting portion, the sealing ring is sleeved on the outer side of the inserting portion, and the outer step is arranged between the flange plate and the outer step.

The water heater as described above, wherein the insulated joint has a threaded connection end for threaded connection with a user water pipe, the threaded connection end having an external thread for mating with an internal thread of the user water pipe.

The water heater of the utility model has the characteristics and advantages that:

1. the utility model has the advantages that the insulating joint is arranged to be connected with the inner container, and the insulating pipe of the pipe body (namely the electricity-proof wall) is arranged to be hermetically connected with the insulating joint, so that the installation operation of the pipe body is simplified, the installation is convenient and fast, the assembly time is saved, the assembly efficiency is improved, and the installation structure of the pipe body and the inner container is simpler;

2. according to the utility model, the sealing ring is arranged outside the insulating pipe, so that the insulating pipe and the insulating joint can be sealed, and the insulating joint and the user water pipe can be sealed, the structure is simple, the sealing effect is good, and water leakage is effectively prevented;

3. according to the utility model, the groove and the bulge are arranged between the insulating pipe and the insulating joint to serve as the circumferential positioning structure, so that the insulating pipe and the insulating joint can be circumferentially positioned, the insulating pipe and the insulating joint are prevented from rotating relatively, the structure is simple, and the installation is convenient;

4. according to the utility model, the side wall of the insulating tube is provided with the limiting bulge which is abutted against the end surface of the outer tube, so that the insulating tube and the outer tube can be conveniently and rapidly assembled.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a schematic structural view of a water heater according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an exploded schematic view of the water heater of FIG. 1;

FIG. 5 is a schematic view of the combined pipe body and insulated joint of FIG. 1;

FIG. 6 is a schematic view of the tubular body of FIG. 1;

FIG. 7 is a schematic view of the construction of the insulated joint of the present invention;

FIG. 8 is a schematic diagram of the structure of the connection port of the present invention;

fig. 9 is a schematic view of a combination of a pipe body and an insulated joint according to another embodiment of the present invention.

Main element number description:

1. an inner container;

11. a connection port; 111. an annular flange; 112. an inner step;

13. a water outlet port; 14. a water inlet port;

2. an insulated joint;

21. a flange plate; 22. a seal ring; 23. an insertion portion;

231. an outer step; 24. a threaded connection end;

3. a pipe body;

31. an insulating tube; 311. an extension end; 312. a limiting bulge;

32. an outer tube; 321. a diameter reducing portion;

4. a seal member; 41. and sealing the flange.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. In the description of the present invention, unless otherwise specified, the term "connected" is to be understood broadly, for example, it may be a fixed connection, a detachable connection, a direct connection, or an indirect connection via an intermediate medium, and it is obvious to those skilled in the art that the above terms are used in the patent in a specific sense.

As shown in fig. 1 and 4, the present invention provides a water heater, which includes an inner container 1, an insulating joint 2 and a pipe body 3, the pipe body 3 is commonly called an electricity-proof wall, the inner container 1 has a connection port 11, the connection port 11 is a water outlet port 13 or a water inlet port 14, the insulating joint 2 is made of an insulating material, for example, the insulating joint 2 is a PPS joint, the insulating joint 2 is connected with the connection port 11, after the insulating joint 2 is connected with the connection port 11, an axial direction of the insulating joint 2 is substantially parallel to a radial direction of the inner container 1, the insulating joint 2 is communicated with the inner container 1, the pipe body 3 is inserted into the insulating joint 2, one end of the pipe body 3 extends into the inner container 1 for water in the inner container 1 to flow through, the pipe body 3 includes an insulating pipe 31 (as shown in fig. 2 and 6), the insulating pipe 31 is hermetically connected with the insulating joint 2, water in the inner container 1 flows out after passing through the insulating pipe 31, because partial pressure of water in the insulating pipe 31 is high, the partial pressure on the human body is low, the electric shock of the human body can be prevented, and the safety is good.

In the utility model, the insulating joint 2 is used for installing the pipe body 3, when the pipe body 3 is installed, the insulating joint 2 is firstly connected with the connecting port 11 of the inner container 1, then the pipe body 3 is inserted into the inner container 1 through the insulating joint 2, and after the pipe body 3 is inserted in place, the insulating pipe 31 of the pipe body 3 and the insulating joint 2 form sealing connection, so that the pipe body 3 is inserted, fixed and sealed, and the installation operation is very convenient.

After the insulating joint 2 is connected with the connecting port 11 of the liner 1, the insulating joint 2 is not required to be removed, when the pipe body 3 is maintained, only the pipe body 3 is removed, and when the pipe body 3 is installed again, only the pipe body 3 is required to be inserted into the insulating joint 2 and the liner 1, so that the installation operation is very simple and convenient.

In an embodiment, as shown in fig. 2, the insulating joint 2 includes a first end close to the liner 1 and a second end far from the liner 1, the first end refers to a portion of the insulating joint 2 close to or adjacent to an end surface of the liner 1, the second end refers to a portion of the insulating joint 2 far from or adjacent to the end surface of the liner 1, a portion of the insulating joint 2 close to the first end is connected to the connection port 11, and a portion of the insulating joint 2 close to the second end is connected to the insulating tube 31 in a sealing manner.

In one embodiment, as shown in fig. 2, the water heater further comprises a sealing member 4 disposed between the insulation tube 31 and the insulation joint 2, the sealing member 4 being proximate the second end to seal between the insulation tube 31 and the insulation joint 2. The seal 4 is for example a rubber sealing ring.

Specifically, the sealing element 4 is sleeved outside the insulating tube 31, the sealing element 4 and the tube body 3 form a combined piece (as shown in fig. 6), when the tube body 3 is installed, the tube body 3 is inserted into the liner 1 through the insulating joint 2, and after the tube body is inserted in place, the sealing element 4 is just inserted into the insulating joint 2, so that the insulating tube 31 and the insulating joint 2 are sealed, the installation and the sealing of the tube body 3 can be completed only through one-step insertion operation, and the operation is very simple and convenient.

However, the present invention is not limited thereto, and in other embodiments, the insulation tube 31 and the insulation joint 2 may be sealed by other methods, for example, the insulation tube 31 itself has a sealing tube section, and the sealing tube section and the insulation joint 2 are tightly engaged and sealed by interference fit.

Further, as shown in fig. 5 and 6, the tube body 3 further includes an outer tube 32 sleeved outside the insulating tube 31, the insulating tube 31 has an extended end 311 located outside the outer tube 32, the sealing member 4 is sleeved on an outer wall of the extended end 311, and the extended end 311 is hermetically connected with an inner wall of the insulating joint 2 through the sealing member 4.

Further, as shown in fig. 3 and 6, the insulating tube 31 is in clearance fit with the outer tube 32, so that the insulating tube 31 and the outer tube 32 can be assembled conveniently, a limiting protrusion 312 is arranged on the outer wall of the protruding end 311, the limiting protrusion 312 abuts against the end surface of the outer tube 32, so that the protruding end 311 is positioned outside the outer tube 32, and the insulating tube 31 and the outer tube 32 can be assembled quickly.

In order to fix the insulating tube 31 and the outer tube 32, a reduced diameter portion 321 (shown in fig. 3) may be provided on a side wall of the outer tube 32, and the insulating tube 31 may be clamped by the reduced diameter portion 321, thereby achieving relative fixation of the insulating tube 31 and the outer tube 32. Wherein the inner diameter of the reduced diameter portion 321 is not larger than the outer diameter of the reduced diameter portion 321 to clamp the reduced diameter portion 321, the reduced diameter portion 321 may be formed after inserting the insulating tube 31 into the outer tube 32 so as not to hinder the assembly of the reduced diameter portion 321 and the outer tube 32.

In a first possible solution, the outer tube 32 is a straight tube.

In another possible embodiment, as shown in fig. 9, the outer tube 32 is an elbow. Preferably, one end of the outer tube 32 located in the liner 1 is bent to avoid components such as a heating rod in the liner 1, but the utility model is not limited to the specific bending shape of the outer tube 32, and may be bent in a circular arc shape or an S-shape, for example.

In an embodiment, as shown in fig. 2, a portion of the insulation joint 2 near the second end is used for connecting a user water pipe, the sealing member 4 has a sealing flange 41, the sealing flange 41 abuts against the second end of the insulation joint 2, and after the user water pipe is connected with the insulation joint 2, the sealing flange 41 can seal the user water pipe and the insulation joint 2 without separately arranging the sealing member 4 between the insulation joint 2 and the user water pipe, so that the sealing member 4 can not only seal between the insulation pipe 31 and the insulation joint 2, but also seal between the insulation joint 2 and the user water pipe, thereby further simplifying the operation and simplifying the structure.

In one embodiment, the insulation tube 31 and the insulation joint 2 are circumferentially positioned by an anti-rotation structure to prevent the insulation tube 31 and the insulation joint 2 from rotating relatively.

In a possible technical solution, the insulation tube 31 and the insulation joint 2 are circumferentially positioned by a groove and a protrusion, for example, the groove is formed on the outer wall of the insulation tube 31, the protrusion is formed on the inner wall of the insulation joint 2, and the groove and the protrusion are matched, so that by the further operation of inserting the tube body 3 into the insulation joint 2, the circumferential positioning of the insulation tube 31 and the insulation joint 2 is also simultaneously completed, and the installation operation is further simplified.

The shapes of the groove and the protrusion are not limited in the present invention, and may be a strip structure, a dot structure, or other shapes as long as the insulating tube 31 and the insulating joint 2 can be circumferentially positioned.

In one embodiment, as shown in fig. 2 and 7, a portion of the insulating joint 2 near the first end has a flange 21 for connecting with the connection port 11 to realize flange connection of the insulating joint 2 and the connection port 11, and the flange 21 is provided with a sealing ring 22 for sealing between the flange 21 and the connection port 11 to realize sealing between the insulating joint 2 and the connection port 11.

As shown in fig. 2 and 8, specifically, the connection port 11 has an annular flange 111, and the flange 21 and the annular flange 111 are respectively provided with a plurality of bolt holes for passing bolts, so that the flange 21 and the annular flange 111 are flange-connected by a plurality of bolts, thereby realizing the detachable connection of the insulating joint 2 and the connection port 11.

However, the utility model is not limited thereto, and in other embodiments, the insulated connector 2 and the connection port 11 may be connected by other existing detachable connection methods.

Further, as shown in fig. 2 and 7, the portion of the insulating joint 2 near the first end further includes an insertion portion 23 for being inserted into the connection port 11, an outer step 231 for abutting against an inner step 112 (shown in fig. 8) on an inner wall of the connection port 11 is disposed on an outer wall of the insertion portion 23 to achieve axial positioning of the insulating joint 2 and the connection port 11, the sealing ring 22 is sleeved outside the insertion portion 23, and the sealing ring 22 is disposed between the flange 21 and the outer step 231, after the flange 21 of the insulating joint 2 and the connection port 11 are flange-connected, the sealing ring 11 is also clamped by the flange 21 and the connection port 11, so that sealing is achieved while connection, sealing is reliable, water leakage is prevented, and installation is also convenient.

In one embodiment, as shown in fig. 2 and 7, the insulation connector 2 has a threaded connection end 24 for threaded connection with a user water pipe, the threaded connection end 24 has an external thread for mating with an internal thread of the user water pipe, and after the insulation connector 2 and the user water pipe are threaded, the sealing flange 41 of the sealing member 4 also seals between the insulation connector 2 and the user water pipe, so that sealing is achieved while connection is performed, sealing is reliable, water leakage is prevented, and installation is convenient.

In the first embodiment, as shown in fig. 4, the connection port 11 is a water outlet port 13, and the water outlet port 13, the insulation joint 2 and the pipe body 3 form a water outlet pipe of the water heater.

In a second embodiment, as shown in fig. 4, the connection port 11 is a water inlet port 14, and the water inlet port 14, the insulation joint 2 and the pipe body 3 form a water inlet pipe of the water heater.

The water heater of the present invention may include the outlet pipe of the first embodiment and an existing inlet pipe, or include the inlet pipe of the second embodiment and an existing outlet pipe, or include both the outlet pipe of the first embodiment and the inlet pipe of the second embodiment.

The connection port 11 of the present invention may be a joint structure, which may be fixed on the outer wall of the liner 1 by welding.

The water heater has good electricity-proof effect, ensures the water safety of users, and has simple, convenient and quick installation and convenient maintenance of the pipe body.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the utility model should be considered within the scope of the utility model. It should be noted that the components of the present invention are not limited to the above-mentioned whole application, and various technical features described in the present specification can be selected to be used alone or in combination according to actual needs, so that the present invention naturally covers other combinations and specific applications related to the utility model.

Claims

1. A water heater, comprising:

an inner container with a connection port;

an insulated joint connected to the connection port;

the pipe body penetrates through the insulating joint, and one end of the pipe body extends into the inner container;

the pipe body comprises an insulating pipe, and the insulating pipe is connected with the insulating joint in a sealing mode.

2. The water heater as recited in claim 1,

the insulating joint comprises a first end close to the inner container and a second end far away from the inner container;

the part of the insulating joint close to the first end is connected with the connecting port;

and the part of the insulating joint close to the second end is hermetically connected with the insulating pipe.

3. The water heater of claim 2,

the water heater further includes a seal disposed between the insulated tube and the insulated joint;

the seal is proximate the second end.

4. The water heater as recited in claim 3,

the tube body further comprises an outer tube sleeved outside the insulating tube, the insulating tube is provided with a stretching end positioned outside the outer tube, the sealing element is sleeved on the outer wall of the stretching end, and the stretching end is connected with the inner wall of the insulating joint in a sealing mode through the sealing element.

5. The water heater according to claim 4, wherein a limiting protrusion is arranged on the outer wall of the extending end, the limiting protrusion abuts against the end surface of the outer pipe, and the insulating pipe is in clearance fit with the outer pipe.

6. A water heater as claimed in claim 3, wherein a portion of said insulation joint adjacent said second end is adapted for connection to a user water line, said seal having a sealing flange abutting an end surface of said second end of said insulation joint, said sealing flange being adapted to seal between said insulation joint and said user water line.

7. The water heater as claimed in any one of claims 1 to 6, wherein the insulating tube and the insulating joint are positioned by circumferential engagement of a groove and a protrusion.

8. The water heater according to claim 2, wherein a portion of said insulated joint adjacent said first end has a flange for connection to said connection port, said flange having a gasket for sealing between said flange and said connection port.

9. The water heater according to claim 8, wherein the portion of the insulated joint adjacent to the first end further comprises an insertion portion for inserting into the connection port, an outer step for abutting against an inner step on an inner wall of the connection port is provided on an outer wall of the insertion portion, the sealing ring is sleeved outside the insertion portion, and the sealing ring is located between the flange and the outer step.

10. The water heater as claimed in any one of claims 1 to 6, wherein the insulation joint has a threaded end for threaded connection with a user water pipe, the threaded end having an external thread for mating with an internal thread of the user water pipe.