CN220471898U - Water inlet and outlet pipe structure and water heater - Google Patents

Abstract

The application belongs to the technical field of water heaters, and particularly relates to a water inlet and outlet pipe structure and a water heater. The water inlet and outlet pipe structure is used for a water heater and comprises at least two water pipe assemblies, wherein each water pipe assembly comprises a water pipe, an insulating pipe and a connecting piece, each connecting piece comprises a connecting piece body and a connecting part which are communicated, the insulating pipe is connected with the connecting part through threads, and the connecting parts are perpendicular to the extending direction of the connecting piece body; the insulating tube is sleeved on the water tube, and the insulating tube is connected with the connecting piece body through the connecting part, so that the water tube, the insulating tube and the connecting piece are communicated in sequence, and the connecting piece body is perpendicular to the insulating tube and the water tube. The water inlet and outlet pipe structure is characterized in that the connecting piece structure is improved, so that the connecting piece body is vertically arranged relative to the insulating pipe and the water pipe. And the length of the water inlet and outlet pipe structure along the extending direction of the insulating pipe and the water pipe can be shortened, so that the installation space occupied by the water inlet and outlet pipe structure is smaller, the structure is more compact, and the installation is convenient.

Description

Water inlet and outlet pipe structure and water heater

Technical Field

The application belongs to the technical field of water heaters, and particularly relates to a water inlet and outlet pipe structure and a water heater.

Background

A water heater refers to a device for raising the temperature of cold water to become hot water within a certain period of time, and includes an electric water heater which heats by using electricity as an energy source. Electric water heaters can be divided into three types of water storage type (also known as positive displacement type or heat storage type), instant heating type (also known as semi-water storage type) according to the heating power.

In the prior art, all three electric water heaters have water inlet and outlet pipe structures. The water inlet pipe structure comprises a water pipe, an insulating pipe and a safety valve, and the water outlet pipe structure comprises a water pipe, an insulating pipe and a switching pipe. For the water inlet pipe structure and the water outlet pipe structure, in particular to the water inlet pipe structure, each two adjacent parts of the water inlet pipe structure are connected by threads and are arranged along the extending direction of the water pipe.

Because the extension direction along the water pipe between two adjacent parts sets up, the vertical installation space that occupies is great for inlet tube structure and outlet pipe structure are longer along the length of water pipe extension direction, are inconvenient for the installation.

Disclosure of Invention

The application provides a business turn over water pipe structure and water heater to solve current inlet tube structure and outlet pipe structure along the length of water pipe extending direction longer, the problem of being inconvenient for the installation.

In one aspect, the application provides a water inlet and outlet pipe structure for a water heater, the water inlet and outlet pipe structure comprises at least two water pipe assemblies, the water pipe assemblies comprise water pipes, insulating pipes and connecting pieces, the connecting pieces comprise connecting piece bodies and connecting parts which are communicated, the insulating pipes are connected with the connecting parts through threads, and the connecting parts are perpendicular to the extending direction of the connecting piece bodies;

the at least two connecting piece bodies are respectively a safety valve and a transfer tube;

the insulating tube is sleeved on the water tube, and the insulating tube is connected with the connecting piece body through the connecting part, so that the water tube, the insulating tube and the connecting piece are communicated in sequence, and the connecting piece body is perpendicular to the insulating tube and the water tube.

In one possible implementation manner, the water inlet and outlet pipe structure further comprises at least two threaded connecting pieces, the connecting portion is provided with a connecting flange, and the insulating pipe and the connecting flange are connected through the threaded connecting pieces.

In one possible implementation, the water inlet and outlet pipe structure provided by the application, one of the insulating pipe and the connecting flange is provided with at least two strip holes, and the other one is provided with at least two threaded holes.

In one possible implementation, the water inlet and outlet pipe structure provided by the application, the strip holes are distributed at intervals along the circumference of the insulating pipe or the connecting flange.

In one possible implementation manner, the water inlet and outlet pipe structure provided by the application is characterized in that one end of the insulating pipe, which is away from the connecting part, is provided with a radial boss, and the radial boss is connected with the connecting flange through a threaded connecting piece.

In one possible implementation manner, the water inlet and outlet pipe structure provided by the application is characterized in that one side of the insulating pipe, facing the connecting part, is provided with a plug-in connection part, and the plug-in connection part is plugged in the connecting part.

In one possible implementation manner, the water inlet and outlet pipe structure provided by the application further comprises at least one sealing ring, and at least one of the plug-in connection part and the connecting part is provided with a mounting groove for accommodating the sealing ring.

In one possible implementation manner, in the water inlet and outlet pipe structure provided by the application, one side of the insulating pipe facing the connecting part is provided with an external thread part, and the connecting part is internally provided with an internal thread matched with the external thread part;

the external thread part is connected with the internal thread.

In one possible implementation manner, the water inlet and outlet pipe structure provided by the application has the length of the external thread part smaller than or equal to the length of the internal thread.

On the other hand, the application also provides a water heater, which comprises a water heater body and any water inlet and outlet pipe structure communicated with the water heater body.

The business turn over water pipe structure and water heater that this application provided, business turn over water pipe structure make the connecting piece include the connecting piece body and with connecting piece body perpendicular connection's connecting portion, insulating tube and water pipe coaxial coupling to make the connecting piece body pass through connecting portion and insulating tube and water pipe intercommunication, realize making the connecting piece body set up for insulating tube and water pipe is perpendicular. And the length of the water inlet and outlet pipe structure along the extending direction of the insulating pipe and the water pipe can be shortened, so that the installation space occupied by the water inlet and outlet pipe structure is smaller, the structure is more compact, and the installation is convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Preferred technical embodiments of the present application are described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is a schematic diagram of a prior art water heater;

FIG. 2 is a schematic diagram of a front view of a water heater according to an embodiment of the present disclosure;

FIG. 3 is a schematic left-hand view of the water heater of FIG. 2;

FIG. 4 is a schematic diagram illustrating the assembly of the water heater liner and water inlet and outlet pipe structure of FIG. 2;

FIG. 5 is a schematic view of the water pipe assembly of FIG. 4;

FIG. 6 is a second schematic structural view of the water pipe assembly of FIG. 4;

FIG. 7 is a schematic view of the connector of FIG. 5;

FIG. 8 is a schematic view of the connector of FIG. 7 from another perspective;

FIG. 9 is a schematic view of the connector of FIG. 6;

FIG. 10 is a schematic view of the connector of FIG. 9 from another perspective;

FIG. 11 is a schematic view of the assembly structure of the water pipe and the insulating pipe in FIG. 5;

FIG. 12 is a schematic view of the assembly structure of the water pipe and the insulating pipe in FIG. 6;

FIG. 13 is a schematic view of a third construction of the water line assembly of FIG. 4;

FIG. 14 is a schematic diagram of the water line assembly of FIG. 4;

fig. 15 is a schematic diagram of an assembly structure of the water pipe and the insulation pipe in fig. 14.

Reference numerals illustrate:

100-a water heater body;

110-an inner container;

120-hanging frames;

130-concealing the cover;

200-a water line assembly; 200 a-a water inlet pipe assembly; 200 b-a water outlet pipe assembly;

210-a connector; 211-a safety valve; 212-transfer tube; 213-a connection; 2131—a connecting flange; 2132-elongated holes;

220-insulating tube; 221-radial boss; 2211-threaded hole; 222-a plug-in part; 2221-mounting groove; 2222-sealing ring; 223-an external threaded portion;

230-water inlet pipe; 231-water outlet holes;

240-outlet pipe;

250-threaded connection.

Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims of this application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of operation in sequences other than those illustrated or described herein, for example.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The electric water heater is a water heater which takes electricity as energy source and makes the temperature of cold water rise to become hot water within a certain period of time. The heating power can be divided into three types of water storage type (also known as positive displacement type or heat storage type), instant heating type and instant heating type (also known as semi-water storage type) according to the heating power. The water storage type electric water heater has higher safety performance, clean energy and multi-path water supply; the instant heating type electric water heater can be instantly heated after being opened, saves time and electricity, is energy-saving and environment-friendly, has small volume and constant water temperature; compared with the water storage type electric water heater, the quick heating type electric water heater has smaller volume and larger power.

In the prior art, all three electric water heaters have water inlet and outlet pipe structures. The water inlet pipe structure comprises a water inlet pipe, an insulating pipe and a safety valve, and the water outlet pipe structure comprises a water outlet pipe, an insulating pipe and a switching pipe. For the water inlet pipe structure and the water outlet pipe structure, the adjacent two parts are connected by screw threads.

The three electric water heaters are all provided with water inlet and outlet pipe structures. FIG. 1 is a schematic view of a water heater in the prior art, and as shown in FIG. 1, the water inlet pipe structure comprises a water inlet pipe arranged in a water heater body 100, an insulating pipe is connected to the end part of the water inlet pipe extending out of the water heater body 100, and a safety valve is further connected to the insulating pipe so as to be connected with a water inlet pipeline; the water outlet pipe structure comprises a water outlet pipe arranged in the water heater body 100, and the end part of the water outlet pipe extending out of the water heater body 100 is connected with an insulating pipe and further connected with a switching pipe to be connected with a water outlet pipeline. For the water inlet pipe structure and the water outlet pipe structure, threaded connection is adopted between the water inlet pipe and the insulating pipe, between the insulating pipe and the safety valve, between the water outlet pipe and the insulating pipe, and between the insulating pipe and the switching pipe.

For guaranteeing threaded connection's reliability, need all set up longer screw thread section on inlet tube, outlet pipe, insulating tube, relief valve and adapter, this whole length that makes inlet tube structure and outlet pipe structure accomplish after the assembly is longer, and the installation space that occupies is great, and is limited by threaded connection and be difficult to adjust the installation angle between each part for the installation is inconvenient. In addition, the water heater body 100 is difficult to shield the water inlet and outlet pipe structure and the subsequent pipeline structure, and has low concealment.

In order to solve the problems, the application provides a water inlet and outlet pipe structure and a water heater, and the connector body is vertically arranged relative to an insulating pipe and a water pipe by improving the connector structure. And the length of the water inlet and outlet pipe structure along the extending direction of the water pipe is shortened, so that the installation space occupied by the water inlet and outlet pipe structure is smaller, the structure is more compact, and the installation is convenient.

The water inlet and outlet pipe structure and the water heater provided by the application will be described in detail below with reference to the accompanying drawings.

FIG. 2 is a schematic diagram of a front view of a water heater according to an embodiment of the present disclosure; FIG. 3 is a schematic left-hand view of the water heater of FIG. 2; FIG. 4 is a schematic diagram illustrating the assembly of the water heater liner and water inlet and outlet pipe structure of FIG. 2; FIG. 5 is a schematic view of the water pipe assembly of FIG. 4; fig. 6 is a schematic diagram of a second structure of the water pipe assembly in fig. 4.

As shown in fig. 2 to 6, in one aspect, the embodiment of the present application provides a water inlet and outlet pipe structure, which is used for a water heater, and includes at least two water pipe assemblies, wherein the water pipe assemblies include a water pipe, an insulating pipe 220 and a connecting piece, the connecting piece includes a connecting piece body and a connecting portion 213 which are communicated, the insulating pipe 220 is connected with the connecting portion 213 through threads, and the connecting portion 213 is arranged perpendicular to an extending direction of the connecting piece body; the at least two connector bodies are respectively a safety valve 211 and an adapter tube 212; the insulating tube 220 is sleeved on the water tube, the insulating tube 220 is connected with the connector body through the connecting portion 213, so that the water tube, the insulating tube 220 and the connector are sequentially communicated, and the connector body is perpendicular to the insulating tube 220 and the water tube.

It will be appreciated that the water inlet and outlet pipe structures are divided into a water inlet pipe structure and a water outlet pipe structure according to the different purposes and functions thereof, and accordingly, at least two water pipe assemblies 200 are used to respectively correspond to the water inlet pipe structure and the water outlet pipe structure. As shown in fig. 5 and 6, the water pipe assembly 200 is divided into a water inlet pipe assembly 200a and a water outlet pipe assembly 200b. Wherein the water inlet pipe 230 and the water outlet pipe 240 are coaxially inserted on the insulating pipe 220 and fixedly connected with the insulating pipe 220. The connection means, such as a threaded connection, which is well known to those skilled in the art, is used to connect the inlet pipe 230 and the outlet pipe 240 to the insulating pipe 220, respectively. Further, the insulating tube 220 is screw-coupled to the coupling portion 213 of the coupling 210, and the coupling body and the coupling portion 213 communicate such that the insulating tube 220 and the coupling 210 communicate. So as to realize the sequential coaxial communication of the water pipe, the insulating pipe 220 and the connecting part 213, and the water pipe, the insulating pipe 220 and the connecting part 213 are vertically communicated with the connecting piece body.

The main difference between the water inlet pipe 230 and the water outlet pipe 240 is that a plurality of water outlet holes 231 are formed at one end of the water inlet pipe 230 near the insulating pipe 220, and cold water can be discharged from the lower end of the water inlet pipe 230 as much as possible through the water outlet holes 231, so that cold water in the inner container of the water heater is gathered at the lower part and cannot flow to the hot water at the upper part of the inner container 110, and the water temperature is reduced. The specific lengths of the inlet pipe 230 and the outlet pipe 240 may be specifically set according to specific parameters of the water heater, which is not limited in this application.

FIG. 7 is a schematic view of the connector of FIG. 5; FIG. 8 is a schematic view of the connector of FIG. 7 from another perspective; FIG. 9 is a schematic view of the connector of FIG. 6; fig. 10 is a schematic view of the connector of fig. 9 from another perspective.

As shown in fig. 7 to 10, the connector 210 is composed of a connector body and a connector 213, and the connector body and the connector 213 communicate with each other through a water flow passage therein. Specifically, the connector body and the connecting portion 213 may be separately manufactured and then connected, for example, welded or bonded, or may be integrally formed.

Wherein the connector 210 shown in fig. 7 and 8 is used to correspond to the water inlet pipe assembly 200a shown in fig. 5, and the connector 210 shown in fig. 9 and 10 is used to correspond to the water outlet pipe assembly 200b shown in fig. 6. In the water inlet pipe assembly 200a, the connector body of the connector 210 is a safety valve 211, and the outlet of the safety valve 211 is vertically connected with the inlet of the connecting part 213, so that the connecting part 213 is vertical to the safety valve 211, and the connector 210 for the water inlet pipe assembly 200a is formed; in the water outlet pipe structure, the connector body of the connector 210 is a switching pipe 212, and the outlet of the switching pipe 212 is vertically connected with the inlet of the connecting portion 213, so that the connecting portion 213 is perpendicular to the switching pipe 212, and the connector 210 for the water outlet pipe assembly 200b is formed.

And, specific implementation means of the insulation performance of the insulation tube 220 include, but are not limited to: make it by insulating material, set up insulating coating at the surface to and water resistance decay isolation method (set up the route that insulating line prolonged rivers in its inside in order to weaken current intensity), above-mentioned means are the conventional means that the person skilled in the art can realize, and this application is not repeated here.

Therefore, the water inlet and outlet pipe structure provided in the embodiment of the present application is improved in structure of the connector 210, so that the connector 210 includes a connector body and a connecting portion 213 vertically connected to the connector body. Wherein the connector body may enable either one of the relief valve 211 and the adapter tube 212. The connecting part 213, the insulating tube 220 and the water tube are coaxially connected, and the connecting member body is communicated with the insulating tube 220 and the water tube through the connecting part 213, so that the connecting member body is vertically arranged relative to the connecting part 213, the insulating tube 220 and the water tube. And the length of the water inlet and outlet pipe structure along the extending direction of the insulating pipe 220 and the water pipe can be shortened, so that the installation space occupied by the water inlet and outlet pipe structure is smaller, the structure is more compact, and the installation is convenient.

In addition, the water inlet and outlet pipe structure of the present embodiment shortens the structural length of the water pipe assembly 200 by making the connector body perpendicular to the water pipe, and is also convenient for concealed installation of the water inlet and outlet pipe structure, as shown in fig. 2 and 3, so that the water inlet and outlet pipe structure can be shielded by the water heater body 100 as much as possible and basically has no exposed part under the direct-view condition, without providing the hiding cover 130, and has better concealment. Furthermore, a hiding cover 130 can be additionally arranged to shelter the water inlet and outlet pipe structure.

As shown in fig. 5 and 6, in some embodiments, the water tube assembly 200 further includes at least two threaded connectors 250, the connection 213 having a connection flange 2131, the insulating tube 220 and the connection flange 2131 being connected by the threaded connectors 250.

It will be appreciated that the connection flange 2131 is located at an end of the connection 213 facing the insulating tube 220. The provision of the screw connection members 250 enables the screw connection of the insulating tube 220 and the connection flange 2131 of the connection portion 213 to be made to have high connection stability, and the plurality of screw connection members 250 is also advantageous in improving connection reliability, and when one of the screw connection members 250 is damaged, connection assurance can be provided by the other screw connection members 250.

It should be noted that the threaded connection 250 may be a bolt, a screw, a threaded rod, or the like, which is not limited in this application.

While ensuring the reliability of the screw connection, in order to facilitate the installation of the screw connection 250, a circular through hole may be provided in one of the insulating tube 220 and the connection flange 2131, and a screw hole 2211 may be provided in the other, and the screw connection 250 may be threaded from the circular through Kong Bei to one side of the screw hole 2211 and connected with the screw hole 2211. Specifically, the circular through hole may be disposed on the connecting flange 2131, so that an operator can install the pipe from one end far away from the water inlet pipe 230 or the water outlet pipe 240, and interference between the water inlet pipe 230 and the water outlet pipe 240 is avoided. In other embodiments, a round through hole may be provided on the insulating tube 220 and a threaded hole 2211 may be provided on the connection flange 2131, but in order to ensure the reliability of the threaded connection, it is necessary to appropriately increase the thickness of the connection flange 2131 to extend the length of the threaded hole 2211, which is not limited in this application.

Moreover, the number of the round through holes may be greater than or equal to the number of the threaded holes 2211, or the number of the threaded holes 2211 may be greater than or equal to the number of the round through holes, so as to better adjust the rotation angle of the connecting piece 210 relative to the insulating tube 220, and simplify the installation of the water inlet and outlet tube structure.

In some embodiments, as shown in fig. 5-10, one of the insulating tube 220 and the connecting flange 2131 has at least two elongated holes 2132 thereon, and the other has at least two threaded holes 2211 thereon.

It will be appreciated that the elongated apertures 2132 may be considered as a plurality of interconnected and overlapping circular through-holes, which may also facilitate better adjustment of the rotational angle of the connector 210 relative to the mounting of the insulating tube 220, simplifying the mounting of the water inlet and outlet tube structure.

Specifically, the elongated hole 2132 may be provided on the insulating tube 220 or on the connecting flange 2131, which is not limited in this application.

Wherein the elongated holes 2132 are spaced apart along the circumference of the insulating tube 220 or the connecting flange 2131.

It will be appreciated that the elongated holes 2132 are circumferentially spaced about the insulating tube 220 or the connecting flange 2131 such that the elongated holes 2132 form a non-closed annular configuration to facilitate rotation of the connector 210 about the axis of the insulating tube 220, preventing the elongated holes 2132 from interfering with the adjustment of the mounting angle of the connector 210, resulting in greater flexibility in the mounting of the connector 210.

In some embodiments, as shown in fig. 5 and 6, the end of the insulating tube 220 facing away from the connection portion 213 has a radial boss 221, and the radial boss 221 and the connection flange 2131 are connected by a threaded connection 250.

It can be appreciated that the radial boss 221 is provided, so that the threaded hole 2211, the round through hole or the long strip hole 2132 can be provided on the radial boss 221 to realize threaded connection with the connecting flange 2131 through the threaded connector 250, so that the overall structure is compact, and the installation, the disassembly and the maintenance are convenient. And thus, the screw connection member 250 can be made to tighten the insulating tube 220 and the connection flange 2131 to some extent at the time of screw connection, improving connection reliability.

Fig. 13 is a schematic view of the water pipe assembly of fig. 4.

In other embodiments, as shown in fig. 13, taking the water outlet pipe assembly 200b as an example, the radial boss 221 may not be provided, but the outer diameter of the insulation section may be increased, so as to extend the length of the threaded hole 2211, thereby improving the reliability of the threaded connection member 250.

FIG. 11 is a schematic view of the assembly structure of the water pipe and the insulating pipe in FIG. 5; fig. 12 is a schematic diagram of an assembly structure of the water pipe and the insulation pipe in fig. 6.

As shown in fig. 11 and 12, in some embodiments, a side of the insulating tube 220 facing the connection portion 213 has a plugging portion 222, and the plugging portion 222 is plugged into the connection portion 213.

It can be understood that, the plug-in portion 222 is provided, so that when the insulating tube 220 is connected to the connector 210, the plug-in portion 222 is inserted into the connector 213 and is communicated with the connector 213, thereby ensuring that the insulating tube 220 and the connector 210 are stably connected, and improving the sealing effect of the connection part and preventing water flow from seeping out from the connection gap.

And, at least one sealing ring 2222 is further included, and at least one of the insertion portion 222 and the connection portion 213 has a mounting groove 2221 for accommodating the sealing ring 2222.

It will be appreciated that the provision of the sealing ring 2222 may further enhance the sealing performance of the joint. The number of the sealing rings 2222 may be one or more than two, and the mounting grooves 2221 may be specifically disposed on the outer side wall of the plugging portion 222, may be disposed on the inner side wall of the connecting portion 213, or may be disposed on both sides, so as to form an axial seal; and the mounting grooves 2221 may also be provided on the end surface of the insertion portion 222 or the inner bottom surface of the connection portion 213 in the insertion direction, or may be provided both to form radial seals, which are not limited in this application.

The sealing ring 2222 can be a rubber ring, and has good sealing performance and long service life.

FIG. 14 is a schematic diagram of the water line assembly of FIG. 4; fig. 15 is a schematic diagram of an assembly structure of the water pipe and the insulation pipe in fig. 14.

In other embodiments, as shown in fig. 14 and 15, the insulating tube 220 has an external screw portion 223 on a side facing the connection portion 213, and the connection portion 213 has an internal screw thread matching the external screw portion 223 therein; the male screw 223 is connected to the female screw.

It can be appreciated that the plug-in portion 222 is changed to the external thread portion 223, so that the insulating tube 220 and the connecting member 210 are connected by the threaded connecting member 250 instead of directly connecting the insulating tube 220 and the connecting member 210 through the external thread portion 223, so that the threaded connecting member 250, the threaded hole 2211 and the through hole or the elongated hole 2132 can be omitted, the structure of the water tube assembly 200 is further simplified, and the installation is convenient.

And in some embodiments, the length of the externally threaded portion 223 is less than or equal to the length of the internal threads.

It can be appreciated that, by adopting the arrangement, the length of the water pipe assembly 200 along the extending direction of the water inlet pipe 230 or the water outlet pipe can be shortened as much as possible while ensuring the stable and reliable threaded connection, so that the overall structure of the water pipe assembly 200 is compact.

In another aspect, the present application further provides an embodiment of a water heater, as shown in fig. 2 to 4, the water heater includes a water heater body 100 and any one of the water inlet and outlet pipe structures described above that are in communication with the water heater body 100. The water inlet and outlet pipe structure is described in detail in the above embodiments, and this embodiment will not be described in detail.

The water heater body 100 is provided with an inner container 110, and a water pipe part of the water inlet and outlet pipe structure is inserted into the inner container 110. The inner container 110 is fixedly connected with the hanging frame 120 to realize hanging of the water heater body 100. The whole water inlet and outlet pipe structure can be shielded by the water heater body 100 to ensure the concealed installation of the water inlet and outlet pipe structure.

The liner 110 may be a drum structure or a flat drum structure, which is not limited in this application.

In summary, according to the water inlet and outlet pipe structure and the water heater provided in the embodiments of the present application, by improving the structure of the connecting piece 210, the connecting piece 210 includes a connecting piece body and a connecting portion 213 vertically connected with the connecting piece body. The connecting part 213, the insulating tube 220 and the water tube are coaxially connected, and the connecting member body is communicated with the insulating tube 220 and the water tube through the connecting part 213, so that the connecting member body is vertically arranged relative to the connecting part 213, the insulating tube 220 and the water tube. And the length of the water inlet and outlet pipe structure along the extending direction of the water pipe is shortened, so that the installation space occupied by the water inlet and outlet pipe structure is smaller, the structure is more compact, and the installation is convenient. And also makes water inlet and outlet pipe structure can be blocked by the water heater body 100 as far as possible, does not basically have the part that exposes under the direct-view condition, and the disguise is better.

While the present application has been described in connection with the preferred embodiments illustrated in the accompanying drawings, it will be readily understood by those skilled in the art that the scope of the application is not limited to such specific embodiments, and the above examples are intended to illustrate the technical aspects of the application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The water inlet and outlet pipe structure is used for a water heater and is characterized by comprising at least two water pipe assemblies, wherein each water pipe assembly comprises a water pipe, an insulating pipe and a connecting piece, each connecting piece comprises a connecting piece body and a connecting part which are communicated, the insulating pipe is connected with the connecting part through threads, and the connecting part is perpendicular to the extending direction of the connecting piece body;

the at least two connector bodies are respectively a safety valve and a transfer tube;

the insulating pipe is sleeved on the water pipe, the insulating pipe is connected with the connecting piece body through the connecting part, so that the water pipe, the insulating pipe and the connecting piece are sequentially communicated, and the connecting piece body is vertical to the insulating pipe and the water pipe.

2. The water inlet and outlet pipe structure according to claim 1, further comprising at least two screw-threaded connectors, the connector having a connection flange, the insulating pipe and the connection flange being connected by the screw-threaded connectors.

3. The water inlet and outlet pipe structure according to claim 2, wherein one of said insulating pipe and said connecting flange has at least two elongated holes thereon, and the other has at least two threaded holes thereon.

4. A water inlet and outlet pipe structure according to claim 3, wherein the elongated holes are spaced apart along the circumference of the insulating pipe or the connecting flange.

5. The water inlet and outlet pipe structure according to claim 2, wherein one end of the insulating pipe facing away from the connecting portion is provided with a radial boss, and the radial boss and the connecting flange are connected through the threaded connecting piece.

6. The water inlet and outlet pipe structure according to any one of claims 1 to 5, wherein a side of the insulating pipe facing the connecting portion is provided with a plug-in portion, and the plug-in portion is inserted into the connecting portion.

7. The water inlet and outlet pipe structure according to claim 6, further comprising at least one sealing ring, at least one of the plug portion and the connection portion having a mounting groove for receiving the sealing ring.

8. The water inlet and outlet pipe structure according to claim 1, wherein a side of the insulating pipe facing the connecting portion has an external thread portion, and the connecting portion has an internal thread matching the external thread portion therein;

the external thread portion is connected with the internal thread.

9. The water inlet and outlet pipe structure according to claim 8, wherein the length of the male screw portion is less than or equal to the length of the female screw.

10. A water heater comprising a water heater body and a water inlet and outlet pipe structure according to any one of claims 1 to 9 in communication with the water heater body.