CN220471897U - 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 comprises at least two water pipe assemblies, each water pipe assembly comprises a water pipe and a connecting piece, each connecting piece comprises a connecting section and an insulating section which are integrally formed, and the connecting sections are communicated with the insulating sections; the at least two connecting sections are respectively a safety valve section and an adapter pipe section; the connecting pipe is sleeved on the water pipe and connected with the insulating section so as to be communicated with the water pipe and the connecting piece. The business turn over water pipe structure that this application provided is through setting up integrated into one piece's connecting piece and replace the assembly part of insulating tube and relief valve or switching pipe, and the structure has been simplified, has shortened the structural length of water pipe assembly, has simplified the installation step of water pipe assembly to make business turn over water pipe structure be convenient for install.

Description

Inlet and outlet pipe structure and water heater

Technical field

This 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 technique

A water heater refers to a device that increases the temperature of cold water into hot water within a certain period of time, and includes electric water heaters that use electricity as energy for heating. Electric water heaters can be divided into three types according to the heating power: water storage type (also known as volumetric or thermal storage type), instant heating type, and instant heating type (also known as semi-water storage type).

In the prior art, the above three types of electric water heaters all have water inlet and outlet pipe structures. The water inlet pipe structure includes an inlet pipe, an insulating pipe and a safety valve, and the water outlet pipe structure includes an outlet pipe, an insulating pipe and a transfer pipe. For the water inlet pipe structure and the water outlet pipe structure, threaded connections are used between adjacent two parts.

Since the threaded connection structure requires a threaded section for connection, it occupies a large installation space, making the overall length of the water inlet and outlet pipe structure long, making it inconvenient to install.

Utility model content

This application provides a water inlet and outlet pipe structure and a water heater to solve the problem that the existing water inlet and outlet pipe structure has a long overall length and is inconvenient to install.

On the one hand, the present application provides a water inlet and outlet pipe structure for a water heater, including at least two water pipe assemblies. The water pipe assembly includes a water pipe and a connecting piece. The connecting piece includes an integrally formed connecting section and an insulating section, and the connecting section and the insulating section are connected;

At least two connecting sections are the safety valve section and the transfer pipe section;

The water pipe is provided with a connecting pipe, and the connecting pipe is connected to the insulating section to connect the water pipe and the connecting piece.

In a possible implementation manner, the water inlet and outlet pipe structure and water pipe assembly provided by this application also include a clamping piece. When the connecting pipe is connected to the insulating section, the clamping piece is clamped with the connecting pipe and the insulating section respectively, so that The relative positions of the connecting pipe and the insulating section are fixed.

In a possible implementation manner, in the water inlet and outlet pipe structure provided by this application, the connecting pipe has a first slot, the insulating section has a second slot, the connecting pipe is inserted into the insulating section, and the first slot and The second slots are opposite, the first slot is connected with the second slot, and the clamping member is clamped in the first slot and the second slot.

In a possible implementation, in the water inlet and outlet pipe structure provided by this application, the first slot is an annular groove arranged along the radial direction of the connecting pipe, and the second slot is a gap arranged along the radial direction of the insulating section, The gap is connected to the interior of the insulation section.

In a possible implementation manner, in the water inlet and outlet pipe structure provided by this application, the clamping member has two clamping arms and two clamping claws, and the clamping claws are arranged on the ends of the clamping arms in one-to-one correspondence;

The arm portion is inserted into the first slot and the second slot, and the claws are in contact with the outer wall of the insulating section.

In a possible implementation, in the water inlet and outlet pipe structure provided by this application, the outer wall of the insulating section has two opposite slots, and the slot of the slot faces the second slot and is connected to the second slot;

The clamp arm moves relative to the second slot, and the claws contact the slot one by one, so that the clamping piece is disengaged from the connecting pipe and the insulating section.

In a possible implementation manner, in the water inlet and outlet pipe structure provided by this application, the connecting pipe and the insulating section are connected through threads.

In a possible implementation, the water inlet and outlet pipe structure and water pipe assembly provided by this application also include a sealing ring, and at least one of the connecting pipe and the insulating section has an installation groove to accommodate the sealing ring.

In a possible implementation manner, in the water inlet and outlet pipe structure provided by this application, the connecting section and the insulating section are vertical.

On the other hand, this application also provides a water heater, including a water heater body and any of the above-mentioned water inlet and outlet pipe structures connected with the water heater body.

In the water inlet and outlet pipe structure and water heater provided by this application, the water inlet and outlet pipe structure is simplified by providing an integral connector to replace the assembly of the insulating pipe and the safety valve or transfer pipe. The connecting piece includes a connecting section and an insulating section. The connecting section is a safety valve section and a transfer pipe section respectively. The connecting section and the insulating section are directly connected, thereby eliminating the need for a threaded connection structure between the insulating pipe and the safety valve or transfer pipe. , shortening the structural length of the water pipe assembly and simplifying the installation steps of the water pipe assembly, so that the inlet and outlet water pipe structure is easy to install.

Description of 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 picture is:

Figure 1 is a schematic structural diagram of a water heater in the prior art;

Figure 2 is a schematic front structural view of the water heater provided by the embodiment of the present application;

Figure 3 is a schematic left structural diagram of the water heater in Figure 2;

Figure 4 is a schematic diagram of the assembly of the inlet and outlet pipe structure and the inner tank of the water heater in Figure 2;

Figure 5 is a schematic structural diagram of the water pipe assembly of the water inlet and outlet pipe structure in Figure 4;

Figure 6 is a structural schematic diagram two of the water pipe assembly of the water inlet and outlet pipe structure in Figure 4;

Figure 7 is a schematic structural diagram of the water pipe in Figures 5 and 6;

Figure 8 is a schematic structural diagram of the connector in Figure 5;

Figure 9 is a schematic structural diagram of the connector in Figure 6;

Figure 10 is a schematic structural diagram of the clamping member in Figures 5 and 6;

Figure 11 is the first diagram of the usage status of the water pipe assembly in Figure 5;

Figure 12 is Figure 2 of the usage status of the water pipe assembly in Figure 5;

Figure 13 is a schematic structural diagram of the water pipe assembly in Figure 6 from another perspective;

Figure 14 is a structural schematic diagram of the water pipe assembly in Figure 6 from another perspective;

Figure 15 is a cross-sectional view along the A-A direction of the water pipe assembly in Figure 11;

Figure 16 is a second cross-sectional view of the water pipe assembly in Figure 11 along the direction A-A;

Figure 17 is a B-B cross-sectional view of the water pipe assembly in Figure 13;

Figure 18 is a second cross-sectional view of the water pipe assembly in Figure 13 taken along B-B direction.

Explanation of reference symbols:

100-water heater body; 110-hanger; 120-inner tank; 130-hidden cover; 140-safety valve; 150-transfer pipe;

200-Water pipe components;

210-water pipe; 211-connecting pipe; 2111-first slot;

220-connector; 220a-water inlet connector; 220b-water outlet connector; 221-safety valve section; 222-transfer pipe section; 223-insulation section; 2231-second slot; 2232-card slot;

230-clamping piece; 231-clamp arm; 232-claw;

240-Sealing ring.

Through the above-mentioned drawings, clear embodiments of the present application have been shown, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present application's concepts in any way, but are intended to illustrate the application's concepts for those skilled in the art with reference to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects without necessarily using Used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein.

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

An electric water heater refers to a water heater that uses electricity as an energy source to increase the temperature of cold water and turn it into hot water within a certain period of time. According to the heating power, it can be divided into three types: water storage type (also called volumetric type or heat storage type), instant heating type, and instant heating type (also called semi-water storage type). Among them, storage-type electric water heaters have higher safety performance, clean energy, and can supply water to multiple channels; instant-heat electric water heaters can heat immediately when turned on, saving time and electricity, energy-saving and environmental protection, compact size, and constant water temperature; instant-heating electric water heaters Electric water heaters are smaller and more powerful than storage-type electric water heaters.

In the prior art, the above three types of electric water heaters all have water inlet and outlet pipe structures. The water inlet pipe structure includes an inlet pipe, an insulating pipe and a safety valve, and the water outlet pipe structure includes an outlet pipe, an insulating pipe and a transfer pipe. For the water inlet pipe structure and the water outlet pipe structure, threaded connections are used between adjacent two parts.

The above three types of electric water heaters all have inlet and outlet pipe structures. Figure 1 is a schematic structural diagram of a water heater in the prior art. As shown in Figure 1, the water inlet pipe structure includes a water inlet pipe arranged in the water heater body 100. The end of the water inlet pipe extending out of the water heater body 100 is connected to an insulating pipe, and the insulating pipe A safety valve 140 is further connected to be connected to the water inlet pipe; the water outlet pipe structure includes a water outlet pipe arranged in the water heater body 100. Similarly, the end of the water outlet pipe extending out of the water heater body 100 is connected with an insulating pipe. Further, A transfer pipe 150 is connected to be connected to the water outlet pipe. Regarding the water inlet pipe structure and the water outlet pipe structure, threaded connections are used between the water inlet pipe and the insulating pipe, between the insulating pipe and the safety valve 140, between the water outlet pipe and the insulating pipe, and between the insulating pipe and the transfer pipe 150.

In order to ensure the reliability of the threaded connection, it is necessary to provide longer threaded sections on the water inlet pipe, water outlet pipe, insulating pipe, safety valve 140 and transfer pipe 150. This makes the water inlet pipe structure and the water outlet pipe structure as a whole after assembly. The length is long, taking up a large installation space, and it is difficult to adjust the installation angle between components due to the threaded connection, making installation inconvenient. Moreover, it is difficult for the water heater body 100 to block the water inlet and outlet pipe structures and subsequent pipeline structures, and the concealment is low.

In order to solve the above problems, the present application provides a water inlet and outlet pipe structure and a water heater. By providing an integral connector to replace the assembly of the insulating pipe and the safety valve 140 or the transfer pipe 150, the structure is simplified, thereby reducing or even omitting the threaded section. , shorten the length of the water inlet and outlet pipe structure to solve the problem that the existing water inlet and outlet pipe structure has a long overall length and is inconvenient to install.

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

Figure 2 is a schematic front structural view of the water heater provided by the embodiment of the present application; Figure 3 is a schematic left structural view of the water heater in Figure 2; Figure 4 is a schematic assembly diagram of the inlet and outlet pipe structure and the inner tank of the water heater in Figure 2; Figure 5 is a diagram The first structural diagram of the water pipe assembly of the water inlet and outlet pipe structure in Figure 4; Figure 6 is the structural diagram of the water pipe assembly of the water inlet and outlet pipe structure in Figure 4; Figure 7 is the structural schematic diagram of the water pipe in Figures 5 and 6; Figure 8 is the structural schematic diagram of the water pipe assembly in Figure 5 Structural schematic diagram of the connecting piece; Figure 9 is a schematic structural diagram of the connecting piece in Figure 6.

On the one hand, the present application provides an embodiment of a water inlet and outlet pipe structure. As shown in Figures 2 to 9, the water inlet and outlet pipe structure is used for a water heater and includes at least two water pipe assemblies 200. The water pipe assembly 200 includes a water pipe 210 and a connector 220. The connection The component 220 includes an integrally formed connecting section and an insulating section 223, and the connecting section and the insulating section 223 are connected; at least two connecting sections are the safety valve section 221 and the transfer pipe section 222; the water pipe 210 is provided with a connecting pipe 211, and the connecting pipe 211 is connected to the insulating section 223 to communicate with the water pipe 210 and the connecting piece 220 .

It can be understood that the water inlet and outlet pipe structures can be divided into water inlet pipe structures and water outlet pipe structures according to their different uses. Correspondingly, at least two water pipe assemblies 200 are used to correspond to the water inlet pipe structure and the water outlet pipe structure respectively. As shown in Figure 7, the water pipe 210 is coaxially provided with a connecting pipe 211. The connecting pipe 211 is used to coaxially connect with the insulating section 223, and the insulating section 223 is sleeved on the outside of the connecting pipe 211, so that the water pipe 210 and the connecting piece 220 connected. The specific length of the water pipe 210 can be specifically set according to the specific parameters of the water heater and whether it is used to inlet or outlet water. This application does not limit this.

It should be noted that the connecting piece 220 is composed of an integrally formed connecting section and an insulating section 223, and the connecting section and the insulating section 223 are connected to each other, so that there is an integrally connected channel inside the connecting piece 220 for water flow to pass through. Specifically, the two water pipe assemblies 200 are used to correspond to the water inlet pipe structure and the water outlet pipe structure. Based on this, the connection section structures of the connectors 220 of the two water pipe assemblies 200 are different. In the water inlet pipe structure, the connecting section of the connecting piece 220 is a safety valve section 221. The connecting piece 220 of the water pipe assembly 200 is composed of a safety valve section 221 and an insulating section 223, forming a water inlet connecting piece 220a as shown in Figure 8; and the outlet In the water pipe structure, the connection section of the connector 220 is a transfer pipe section 222. The connector 220 of the water pipe assembly 200 is composed of a transfer pipe section 222 and an insulating section 223, forming a water outlet connection 220b as shown in Figure 9.

Specific means for realizing the insulation performance of the insulating section 223 include but are not limited to: making it made of insulating material, providing an insulating coating on the surface, and the water resistance attenuation isolation method (setting insulating lines inside to extend the path of the water flow to weaken the Current intensity), the above means are all conventional means that can be implemented by those skilled in the art, and will not be described in detail here.

Moreover, the structure of the safety valve section 221 and the transfer pipe section 222 is not significantly different from the existing safety valve and transfer pipe structures. However, in the embodiment of the present application, the safety valve section 221 and the transfer pipe section 222 are directly integrated with the insulating section 223 respectively. forming.

Therefore, the water inlet and outlet pipe structure provided by this application simplifies the installation structure of the water inlet and outlet pipes by providing integrated water inlet connectors 220a and water outlet connectors 220b to replace the assembly of insulating pipes and safety valves or transfer pipes. The connecting piece 220 includes a connecting section and an insulating section 223. The connecting sections correspond to the water inlet connecting piece 220a and the water outlet connecting piece 220b, which are respectively a safety valve section 221 and a transfer pipe section 222, and the safety valve section 221 and the transfer pipe section 222 are respectively connected with The two insulating sections 223 are directly connected, which eliminates the need for a threaded connection structure between the insulating pipe and the safety valve or adapter pipe, shortens the structural length of the water pipe assembly 200, and simplifies the installation steps of the water pipe assembly 200 to facilitate entry and exit. The water pipe structure is easy to install.

Moreover, since the structural length of the water pipe assembly 200 is shortened, it is also convenient for the concealed installation of the water inlet and outlet pipe structures. As shown in Figures 2 and 3, the water inlet and outlet pipe structures can be shielded by the water heater body 100 as much as possible, making the overall structure of the water heater more compact. compact. Under direct view, there is basically no exposed part, and a hidden cover 130 can be added to further block the structure to completely conceal the inlet and outlet pipe structure. Alternatively, the hidden cover 130 may not be provided, which will not affect the concealment of the inlet and outlet pipe structure.

Figure 10 is a schematic structural diagram of the clamping member in Figures 5 and 6.

In some embodiments, the connecting pipe 211 and the insulating section 223 of the water pipe 210 can be installed through plugging, thereby improving the installation efficiency of the water pipe assembly 200 . Therefore, as shown in Figures 5, 6 and 10, the water pipe assembly 200 also includes a clamping piece 230. When the connecting pipe 211 is connected to the insulating section 223, the clamping piece 230 is clamped with the connecting pipe 211 and the insulating section 223 respectively. connection, so that the relative positions of the connecting pipe 211 and the insulating section 223 are fixed.

It can be understood that the provision of the clamping member 230 can ensure the reliability of the insertion between the connecting pipe 211 and the insulating section 223, and prevent the connecting pipe 211 and the insulating section 223 from being disconnected unnecessarily. Therefore, when the connecting pipe 211 and the insulating section 223 are plugged in, the clamping member 230 needs to engage the connecting pipe 211 and the insulating section 223 at the same time to prevent any one of the connecting pipe 211 and the insulating section 223 from being positioned relative to the other. changes happened.

In addition, with the plug-in connection method, there is only a movement restriction in the plug-in direction, but there is no restriction on the relative rotation of the connecting tube 211 and the insulating section 223. Therefore, while ensuring a tight and reliable connection between the connecting pipe 211 and the insulating section 223, the water inlet connector 220a or the water outlet connector 220b can flexibly adjust its installation angle relative to the water pipe 210, further simplifying the installation.

As shown in Figures 7 to 9, the connecting tube 211 has a first slot 2111, and the insulating section 223 has a second slot 2231. The connecting tube 211 is inserted into the insulating section 223, and the first slot 2111 and The second slot 2231 is opposite, and the first slot 2111 is connected with the second slot 2231. The clamping member 230 is clamped in the first slot 2111 and the second slot 2231.

It can be understood that, in order to realize that the clamping member 230 can clamp the connecting pipe 211 and the insulating section 223 at the same time, a first slot 2111 can be opened on the connecting pipe 211 and a second slot 2231 can be opened on the insulating section 223. When the connecting pipe 211 is inserted into the insulating section 223, the first slot 2111 and the second slot 2231 are opposite and connected, so that the clamping member 230 can be inserted and clamped to restrict the insertion of the water pipe 210 and the connecting piece 220 along the direction displacement.

Furthermore, the first slot 2111 is an annular groove provided along the radial direction of the connecting pipe 211 , and the second slot 2231 is a notch provided along the radial direction of the insulating section 223 , and the notch is connected with the inside of the insulating section 223 .

It can be understood that the first slot 2111 formed by the annular groove can go around the connecting pipe 211 and does not affect the rotation of the connecting piece 220 relative to the water pipe 210 when the clamping piece 230 is engaged. The second slot 2231 formed by the notch communicates with the inside and outside of the insulating section 223. This arrangement allows the clamping member 230 to be installed from the outside of the insulating section 223 and realize the clamping of the connecting pipe 211. The structure is simple and easy to process.

In some embodiments, at least one of the second slot 2231 or the first slot may be a through hole connected to the other, and the clamping member 230 is inserted into the through hole for clamping.

Figure 11 is a first view of the water pipe assembly in Figure 5; Figure 12 is a second view of the water pipe assembly in Figure 5; Figure 13 is a schematic structural view of the water pipe assembly in Figure 6 from another perspective; Figure 14 is a structural diagram of the water pipe assembly in Figure 6 Another structural diagram of the water pipe assembly.

Correspondingly, as shown in FIG. 7 and FIG. 10 to FIG. 14 , the clamping member 230 has two clamping arms 231 and two clamping claws 232 , and the claws 232 are arranged at the ends of the clamping arms 231 in one-to-one correspondence; The arm 231 is partially inserted into the first slot 2111 and the second slot 2231 , and the claw 232 is in contact with the outer wall of the insulating section 223 .

It can be understood that the clamping arm 231 of the clamping member 230 has a simple structure and can achieve simultaneous clamping of the first slot 2111 and the second slot 2231, and the clamping stability is good. The claw 232 is provided at the end of the clamping arm 231 and can contact the insulating section 223 after the clamping member 230 is installed to prevent the clamping member 230 from falling off.

In this embodiment, the two claws 232 extend in opposite directions along the extension direction of the insulating section 223 and are perpendicular to the clamping arm 231 . In other embodiments, the two claws 232 can also extend along the extension direction of the insulating section 223 . direction and extend in the same direction, this application does not limit this.

It should be noted here that the distance between the two clamping arms 231 needs to be larger than the inner diameter of the annular groove and smaller than the outer diameter of the annular groove, and the distance between the two ends of the two notches on the same side is also smaller than the annular groove. The outer diameter of the groove is larger than the inner diameter of the annular groove, so that the clamping arm 231 can stably pass through one end of the gap, the radial annular groove, and then extend from the other end of the gap, and the claw 232 can be pressed against the On the outer wall of the insulating section 223, the clamping is stable and reliable.

In addition, the outer wall of the insulating section 223 has two opposite slots 2232. The slots of the slots 2232 face the second slot 2231 and are connected with the second slot 2231; the clamping arm 231 moves relative to the second slot 2231. The claws 232 are in contact with the slots 2232 in a one-to-one correspondence, so that the clamping member 230 is disengaged from the connecting pipe 211 and the insulating section 223 .

It can be understood that when the clamping member 230 is clamped with the second slot 2231, due to the interference of the clamping member 230, the connecting tube 211 cannot be inserted into the insulating section 223, nor can it be pulled out from the insulating section 223. In order to facilitate the insertion and extraction operation of the connecting pipe 211 relative to the insulating section 223 without completely removing the clamping member 230 from the second slot 2231, two opposite slots 2232 can be provided on the outer wall of the insulating section 223. The direction of the groove 2232 is consistent with the extending direction of the claw 232 .

Therefore, as shown in FIG. 11 , taking the water pipe assembly 200 composed of the water inlet connector 220 a as an example, at this time, the clamping member 230 is not in contact with the slot 2232 , thereby restricting the movement of the connecting pipe 211 relative to the insulating section 223 . As shown in Figure 12, when it is necessary to pull out the connecting tube 211 or insert the connecting tube 211 into the insulating tube, the clamping member 230 can be pulled backward to move the clamping arm 231 along the extension direction of the second slot 2231 until The claw 232 is in contact with the clamping slot 2232 because the clamping slot 2232 is provided between the ends of the two second slots 2231 and the midpoint. Therefore, during the pulling process, the distance between the two claws 232 gradually increases, so that the distance between the clamp arm 231 gradually increases until it is disengaged from the first slot 2111, and then the connecting pipe 211 and the insulating section 223 are disengaged. . Since the clamping member 230 has not fallen off at this time, when the clamping member 230 needs to clamp the connecting pipe 211 and the insulating section 223 again, it is only necessary to push the clamping member 230 in the reverse direction to disengage from the clamping groove 2232.

It should be noted that, in order to realize the above operation, it is necessary to ensure that the two card slots 2232 are located between the end of the second slot 2231 facing away from the insertion side of the clamping member 230 and the midpoint of the second slot 2231, and the two card slots 2232 The shortest distance between them is greater than the outer diameter of the first slot 2111, so that when the claw 232 contacts the slot 2232, the clamp arm 231 withdraws from the first slot 2111. Alternatively, the inclination angle of the side of the slot 2232 facing the claw 232 along the moving direction of the clamp arm 231 may be smaller than the inclination angle of the side of the slot 2232 facing away from the claw 232 along the moving direction of the clamp arm 231 . When the claw 232 is in contact with the slot 2232, the claw 232 can easily disengage from the slot 2232 in the pushing direction of the clamping member 230 and then contact the outer wall of the insulating tube, and the clamp slot 2232 The claw 232 is prevented from moving further in the pulling direction of the clamping member 230 .

In other embodiments, the clamping slot 2232 can also be connected with the inner wall of the insulating section 223, so that the claws 232 enter the inside of the insulating section 223 from the clamping slot 2232, and are clamped between the insulating section 223 and the connecting pipe 211. During this time, the insulating section 223 and the connecting pipe 211 are clamped together.

And in other embodiments, the clamping member 230 can also be configured as other existing clamp structures, which is not limited in this application.

Figure 15 is the A-A cross-sectional view of the water pipe assembly in Figure 11; Figure 16 is the A-A cross-sectional view of the water pipe assembly in Figure 11; Figure 17 is the B-B cross-sectional view of the water pipe assembly in Figure 13; Figure 18 is the water pipe assembly in Figure 13 B-B section view 2.

In some embodiments, as shown in FIG. 7 and FIGS. 15 to 18 , the connecting tube 211 and the insulating section 223 are connected through threads.

It can be understood that the plug-in structure between the connecting pipe 211 and the insulating section 223 can also be replaced with the original threaded connection structure, and the first slot 2111 and the second slot 2231 can be eliminated. Since the insulating section 223 and the connecting section of the connector 220 are integrally formed, the threaded connection structure at this time does not affect the installation length of the water pipe assembly 200 in the water inlet and outlet pipe structure to a certain extent, and can still simplify the installation of the water inlet and outlet pipe structure. .

Therefore, as shown in FIGS. 7 , 15 and 17 , in some embodiments, the water pipe assembly 200 further includes a sealing ring 240 , and at least one of the connecting pipe 211 and the insulating section 223 has an installation to accommodate the sealing ring 240 groove.

It can be understood that providing the sealing ring 240 can further improve the sealing performance of the connection between the insulating section 223 and the connecting pipe 211 . The number of sealing rings 240 may be one or more, and the installation groove may be provided on the outer wall of the connecting pipe 211, or on the inner wall of the insulating section 223, or both may be provided to form an axial seal. ; And when the connecting pipe 211 and the insulating section 223 are connected through threads, the installation groove can also be provided on the end surface of the connecting pipe 211 or the inner bottom surface of the insulating section 223 along the connection direction, or can be provided both to form a radial seal. There are no restrictions on applications.

In some embodiments, as shown in Figures 5, 6, 11, and 13, the connecting section and the insulating section 223 are perpendicular.

It can be understood that by making the connecting section and the insulating section 223 perpendicular, specifically, the safety valve section 221 and the insulating section 223 are perpendicular, and the transfer pipe section 222 and the insulating section 223 are perpendicular, the structure of the water pipe assembly 200 along its extension direction can be further shortened. length (longitudinal length), so as to better shorten the structural length of the water pipe assembly 200, and also facilitate subsequent pipelines to be directly connected transversely with the connection section of the water pipe assembly 200, further improving the concealment of the inlet and outlet water pipe structure.

As shown in FIGS. 2 to 4 , another aspect of the present application also provides an embodiment of a water heater, including a water heater body 100 and any of the above-mentioned water inlet and outlet pipe structures connected to the water heater body 100 . The structure of the water inlet and outlet pipes has been described in detail in the above embodiment, and will not be described again in this embodiment.

The water heater body 100 is provided with an inner tank 120, and the water pipe portion of the water inlet and outlet pipe structure is inserted inside the inner tank 120. The inner tank 120 is fixedly connected to the hanger 110 to realize the hanging of the water heater body 100 . The entire water inlet and outlet pipe structure can be shielded by the water heater body 100 to ensure concealed installation of the water inlet and outlet pipe structure.

The inner tank 120 may specifically have a cylindrical structure or a flat barrel structure, which is not limited in this application.

In summary, the water inlet and outlet pipe structure and water heater provided by this application simplify the structure by providing an integral connector 220 to replace the assembly of the insulating pipe and the safety valve or transfer pipe. The connecting piece 220 includes a connecting section and an insulating section 223. The connecting sections are respectively a safety valve section 221 and a transfer pipe section 222, and the connecting section and the insulating section 223 are directly connected, thereby eliminating the need to install an insulating pipe and a safety valve or transfer pipe. The threaded connection structure shortens the structural length of the water pipe assembly 200 and simplifies the installation steps of the water pipe assembly 200, so that the inlet and outlet water pipe structure is easy to install. It also facilitates the concealed installation of the water inlet and outlet pipe structures, so that the water inlet and outlet pipe structures can be shielded by the water heater body 100 as much as possible without providing a hidden cover 130, or a hidden cover 130 can be provided to further improve its concealment.

So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the drawings. However, those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. The above embodiments are only It is used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still apply the technology described in the foregoing embodiments. Modify the solution, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solution to depart 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 and a connecting piece, each connecting piece comprises a connecting section and an insulating section which are integrally formed, and the connecting sections are communicated with the insulating sections;

at least two connecting sections are respectively a safety valve section and an adapter pipe section;

the connecting pipe is sleeved on the water pipe and connected with the insulating section so as to be communicated with the water pipe and the connecting piece.

2. The water inlet and outlet pipe structure according to claim 1, wherein the water pipe assembly further comprises a clamping member, and the clamping member is respectively clamped with the connecting pipe and the insulating section when the connecting pipe is connected with the insulating section, so that the relative positions of the connecting pipe and the insulating section are fixed.

3. The water inlet and outlet pipe structure according to claim 2, wherein the connecting pipe is provided with a first slot, the insulating section is provided with a second slot, the connecting pipe is inserted into the insulating section, the first slot is opposite to the second slot, the first slot is communicated with the second slot, and the clamping piece is clamped in the first slot and the second slot.

4. A water inlet and outlet pipe structure according to claim 3, wherein the first slot is an annular groove arranged along the radial direction of the connecting pipe, and the second slot is a notch arranged along the radial direction of the insulating section, and the notch is communicated with the inside of the insulating section.

5. The water inlet and outlet pipe structure according to claim 4, wherein the clamping piece is provided with two clamping arms and two clamping claws, and the clamping claws are arranged at the end parts of the clamping arms in a one-to-one correspondence manner;

the clamping arm part is inserted into the first slot and the second slot, and the clamping claw is abutted with the outer side wall of the insulation section.

6. The water inlet and outlet pipe structure according to claim 5, wherein the outer side wall of the insulating section is provided with two opposite clamping grooves, and the notch of each clamping groove faces to and is communicated with the second slot;

the clamping arms move relative to the second slots, and the clamping claws are in one-to-one corresponding abutting connection with the clamping grooves, so that the clamping pieces are separated from the connecting pipes and the insulating sections.

7. The water inlet and outlet pipe structure according to claim 1, wherein the connecting pipe is connected with the insulating section through threads.

8. The water inlet and outlet pipe structure of any one of claims 1-7, wherein the water pipe assembly further comprises a seal ring, at least one of the connecting pipe and the insulating section having a mounting groove receiving the seal ring.

9. The water inlet and outlet pipe structure according to any one of claims 1 to 7, wherein the connection section and the insulation section are perpendicular.

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.