CN214307637U - Water pipe assembly and water heater - Google Patents

Abstract

The utility model discloses a water pipe assembly and water heater. The water pipe assembly includes: the water outlet device comprises a connecting water pipe, a water outlet pipe and a water outlet pipe, wherein the connecting water pipe is provided with a water inlet channel and a water outlet channel; a side water inlet communicated with the water inlet channel is arranged on the connecting water pipe; and the external water inlet pipe is provided with a water inlet channel extending in a roundabout way or in a rotary way, the external water inlet pipe is arranged outside the connecting water pipe, and the water inlet channel is communicated with the side water inlet. Therefore, the external water inlet pipe with the water inlet channel extending in a circuitous way or in a rotary way is arranged outside the connecting water pipe, so that a water resistor can be formed outside the inner container, and a water inlet electricity-proof wall structure is formed outside the inner container.

Description

Water pipe assembly and water heater

Technical Field

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

Background

In the prior art, a water inlet pipe and a water outlet pipe of a water heater are separately arranged, and two water pipe connectors are usually arranged on an inner container to respectively install the water inlet pipe and the water outlet pipe. Therefore, the processing procedure of the inner container (two water pipe connectors need to be welded) is complex, and the assembling process of the water heater is complex and tedious.

In the related art (note that, it is not the prior art), in order to solve the above problem, the water inlet pipe and the water outlet pipe are integrated at the connection part with the liner, i.e. the water inlet and outlet connection pipe is formed. However, in this technique, there is also a need to solve the problem of the water-intake electricity-proof wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a water pipe assembly aims at solving the correlation technique, how to set up the technical problem of intaking and preventing the electric wall based on business turn over water connection water pipe.

In order to achieve the above object, the utility model provides a water pipe assembly for the water heater, water pipe assembly includes:

the water outlet device comprises a connecting water pipe, a water outlet pipe and a water outlet pipe, wherein the connecting water pipe is provided with a water inlet channel and a water outlet channel; a side water inlet communicated with the water inlet channel is arranged on the connecting water pipe; and

the external inlet tube, external inlet tube has circuitous water inlet channel who extends or gyration is extended, external inlet tube is located outside the connecting water pipe, water inlet channel with the side inlet intercommunication.

Optionally, the external water inlet pipe is arranged on one side of the connecting water pipe.

Optionally, the external water inlet pipe comprises a water pipe body and a steering head, the water pipe body is provided with a plurality of branch channels extending along the length direction of the body, one end of the water pipe body is connected to the connecting water pipe, and one branch channel is communicated with the side water inlet; the steering head is arranged at the other end of the water pipe main body, a steering runner is arranged in the steering head, and the steering runner is communicated with the two sub-runners, so that water in one sub-runner can flow to the other sub-runner after being steered, and the water inlet runner is formed.

Optionally, the water pipe main body comprises a plurality of branch pipe bodies, and each branch pipe body is internally provided with one branch channel.

Optionally, the external inlet tube further comprises a water inlet connector, the water inlet connector is located on the lower side of the water tube main body and connected to the water tube main body, and the water inlet connector is communicated with one of the sub-channels.

Optionally, there are two branch passages, and one diversion passage is provided to communicate the two branch passages.

Optionally, the external water inlet pipe further comprises a water inlet interface, the water inlet interface is located on the lower side of the steering head and connected to the steering head, and the steering head further comprises a steering connecting flow channel for communicating the water inlet interface with one of the sub-flow channels.

Optionally, the number of the branch channels is three, the branch channels are respectively a first channel, a second channel and a third channel communicated with the side water inlet, and the steering connection channel is communicated with the water inlet interface and the first channel; one steering flow passage is arranged to communicate the second flow passage with the third flow passage; the other end of the first flow passage is communicated with the other end of the second flow passage.

Optionally, the connection water pipe evagination is equipped with into water convex part, water pipe main part connect in into water convex part, it has the intercommunication to enter water convex part the side inlet with the income water runner of third runner, and intercommunication the other end of first runner with the diversion runner of the other end of second runner.

Optionally, the water pipe body is integrally provided with the connection water pipe.

Optionally, the outer diameter or equivalent outer diameter of the connecting water pipe is greater than or equal to 22 mm and less than or equal to 50 mm.

Optionally, the connection water pipe comprises:

the water outlet connector is arranged on the lower side of the connecting base and is communicated with the water outlet through hole;

one end of the water outlet inner pipe is integrally arranged on the connecting base part, and the water outlet inner pipe is communicated with the water outlet through hole; and

the outer tube of intaking, the one end an organic whole of outer tube of intaking is located connect the basal portion, the outer tube of intaking is located go out the water inner tube outside, the outer tube of intaking go out the water inner tube and connect and be formed with the water inlet passage between the basal portion, the side inlet is located on the outer tube of intaking, external inlet tube is located outside the outer tube of intaking.

The utility model discloses still provide a water heater, the water heater includes:

the inner container is provided with a water inlet and a water outlet; and

as the water pipe component, the water pipe component is arranged at the water inlet and the water outlet.

The utility model discloses in, through making the connecting water pipe both have the inhalant canal of sending water to the inner bag, have the play water passageway of sending out the water in the inner bag again to reducible trompil on the shell of water heater and inner bag can simplify the processing technology of inner bag, and can simplify the assembling process of water heater, reduction in production cost.

Moreover, by arranging the external water inlet pipe with the water inlet flow passage extending in a circuitous way or in a rotary way outside the connecting water pipe, water resistance can be formed outside the inner container, so that a water inlet electricity-proof wall structure can be formed outside the inner container, and therefore, on one hand, the water inlet electricity-proof wall structure can be prevented from being arranged in the inner container, so that the space in the inner container is saved; on the other hand still can be convenient for make the bottom that send the water hole to be close to the inner bag set up to when sending water to the inner bag, send the bottom of inner bag to form the temperature layering, usable hydrothermal layering principle makes the inner bag is extruded from inner bag outlet pipe with the hot water at inner bag top in proper order to the cold water of inner bag bottom like this, thereby can improve the hot water output rate of water heater.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

FIG. 2 is a schematic cross-sectional view of the water heater of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural view of the water tube assembly of FIG. 1;

FIG. 5 is an exploded view of the water tube assembly of FIG. 4;

FIG. 6 is a schematic view of the construction of the rotary joint of FIG. 5;

FIG. 7 is a schematic view of the structure of the connecting water pipe in FIG. 5;

FIG. 8 is a schematic structural view of the steering head of FIG. 5;

FIG. 9 is a cross-sectional view of the water tube assembly of FIG. 4;

FIG. 10 is an enlarged view of a portion of FIG. 9 at B;

FIG. 11 is a partial schematic view of the lower portion of the connecting water pipe of FIG. 9;

FIG. 12 is a partial schematic view of the steering head of FIG. 9;

FIG. 13 is a schematic view of the structure of the snap-in member of FIG. 4;

FIG. 14 is a schematic structural view of the water pipe body in FIG. 4;

FIG. 15 is a side view of the water pipe body of FIG. 14;

FIG. 16 is a schematic view of a water tube assembly according to another embodiment of the present invention;

FIG. 17 is an exploded view of the water tube assembly of FIG. 16;

FIG. 18 is a schematic cross-sectional view of the center line of the two flow paths of the draft tube body of FIG. 16;

FIG. 19 is a schematic cross-sectional view through the center line of the water inlet and outlet interfaces of FIG. 16;

fig. 20 is a schematic structural view of a water heater according to another embodiment of the present invention;

FIG. 21 is a partial schematic view of the water line of FIG. 20 at the connection point;

fig. 22 is a schematic structural diagram of a water pipe assembly according to another embodiment of the present invention.

The reference numbers illustrate:

100. a water tube assembly; 10. connecting a water pipe; 11. a connection base; 111. a water outlet through hole; 112. a water outlet interface; 1121. an inner water outlet port; 1122. a metal external interface for water outlet; 12. an inner water outlet pipe; 13. an outer water inlet pipe; 131. a side water inlet; 132. a water supply hole; 133. an installation section; 134. a water feeding section; 135. mounting a ring groove; 136. a support portion; 137. a water inlet convex part; 1371. a water inlet flow channel; 1372. a diversion channel; 138. an annular accommodating groove; 139. a first connecting projection; 13a, a first limiting plate; 14. a water inlet channel; 20. a water outlet pipe in the liner; 21. the connecting ring is convex; 22. a metal outer tube; 23. a plastic inner tube; 30. connecting a joint; 31. a water passage; 32. a spacing protrusion; 33. a connecting ring groove; 34. accommodating the step; 40. A flow guide pipe; 41. a flow guide hole; 51. a water inlet pipe in the liner; 52. connecting sleeves; 521. a limit fork groove; 53. A fork buckle; 531. a U-shaped fork; 532. a fixed base; 54. a long connecting column; 55. a first annular seal; 56. a second annular seal; 60. an adapter; 61. a first transition section; 611. a second connecting projection; 62. a second switching section; 70. a clamping piece; 71. connecting the substrates; 72. clamping the elastic sheet; 721. a clamping hole; 722. an elastic support section; 723. a clamping section; 7231. a first card section; 7232. a second card section; 7233. a first side pressing sheet; 724. a guide section; 725. a plug-in sheet; 73. a first clamping semi-ring; 731. reversing; 74. a second clamping semi-ring; 741. buckling holes; 80. a water inlet pipe is arranged outside; 81. a water inlet flow channel; 82. a water pipe body; 821. a shunt channel; 821a, a first flow passage; 821b, a second flow passage; 821c, a third flow passage; 83. a steering head; 831. a diversion flow channel; 832. the steering connecting flow channel; 8321. a first flow section; 8322. a second flow section; 833. an installation port; 834. a steering column; 8341. a mounting plane; 835. connecting columns; 84. a plug; 841. stopping the convex column; 85. auxiliary fixing feet; 86. a water inlet interface; 90. A flow sensor; 91. a magnetic rotor; 92. a Hall element; 1000. a water heater; 200. an inner container; 210. A water pipe joint.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that if the embodiments of the present invention are described with reference to "first", "second", etc., the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

The utility model provides a water pipe assembly and water heater, water pipe assembly is used for the water heater.

In an embodiment of the present invention, as shown in fig. 1 and 2, the water heater 1000 includes a housing, an inner container 200 and a water pipe assembly 100, the inner container 200 is disposed in the housing, a water inlet is disposed on the inner container 200, and the water pipe assembly 100 is disposed at the water inlet.

In one embodiment, as shown in fig. 1 and 2, the water inlet is a water outlet, the water pipe assembly 100 includes a connection water pipe 10, and the connection water pipe 10 is a water inlet and outlet, that is, the connection water pipe 10 has a water inlet channel 14 for supplying water into the inner container 200 and a water outlet channel for supplying water from the inner container 200, and the water inlet and outlet is connected to the water inlet and outlet.

Further, as shown in fig. 1 to 15, the connection water pipe 10 includes a connection base 11, an inner water outlet pipe 12, and an outer water inlet pipe 13. The connecting base 11 is provided with a water outlet through hole 111, one end of the water outlet inner pipe 12 is integrally arranged on the connecting base 11, and the water outlet inner pipe 12 is communicated with the water outlet through hole 111; the one end an organic whole of outer pipe 13 of intaking is located and is connected basal portion 11, outer pipe 13 of intaking is located out inner tube 12, outer pipe 13 of intaking, play inner tube 12 and connect and be formed with water inlet channel 14 between the basal portion 11, be equipped with the side inlet 131 with water inlet channel 14 intercommunication on the outer pipe 13 of intaking.

Wherein, the water outlet through hole 111 and the inner channel of the water outlet inner tube 12 form a water outlet channel together.

The outer pipe wall of the water outlet inner pipe 12 is used for forming the inner wall surface of the water inlet channel 14, the inner pipe wall of the water inlet outer pipe 13 is used for forming the outer wall surface of the water inlet channel 14, and the connection base 11 is used for plugging one end of a space between the water outlet inner pipe 12 and the water inlet outer pipe 13 to form the water inlet channel 14.

When the connection water pipe 10 is applied to the inner container 200, the connection water pipe 10 extends into the inner container 200 through the water inlet and outlet on the inner container 200, and the side water inlet 131 is located outside the inner container 200. External water supply can enter the water inlet channel 14 from the side water inlet 131 and enter the inner container 200 through the water inlet channel 14; the (hot) water in the inner container 200 can flow into the inner water outlet pipe 12 through the inner water outlet pipe 12, and flow out through the inner water outlet pipe 12 and the water outlet through hole 111 to be delivered to the water using end (such as a shower head or a faucet) of the water heater 1000.

Alternatively, the inner outlet pipe 12 and the outer water supply pipe may be straight pipes extending in the vertical direction, and the extending direction of the water outlet through hole 111 may be the same as the length direction of the inner outlet pipe 12, so as to simplify the structure. Of course, in other embodiments, the water outlet hole 111 may be a bent hole.

Specifically, the lower end of the connection base 11 (i.e. the end facing away from the inner water outlet pipe 12 and the outer water inlet pipe 13) is provided with a water outlet port 112 for connecting a water outlet pipe, and the extending direction of the water outlet port 112 is the same as the extending direction of the inner water outlet pipe 12. Alternatively, the water outlet 112 includes an inner water outlet 1121 integrally provided with the connection base 11, and an outer metal outlet 1122 provided outside the inner water outlet 1121.

In the present invention, by arranging one end of the water outlet inner tube 12 and one end of the water inlet outer tube 13 on the connection base 11, a water inlet channel 14 can be formed between the water inlet outer tube 13, the water outlet inner tube 12 and the connection base 11, so that external water can be fed into the inner container 200 through the water inlet channel 14; meanwhile, the water outlet inner tube 12 is communicated with the water outlet through hole 111 on the connecting base part 11 to form a water outlet channel, so that (hot) water in the inner container 200 can flow out through the water outlet channel, namely, the connecting water tube 10 is provided with a water inlet channel 14 for supplying water into the inner container 200 and a water outlet channel for supplying water out of the inner container 200, so that holes on the shell of the water heater 1000 and the inner container 200 can be reduced, only one water pipe connector needs to be welded on the inner container 200, the processing technology of the inner container 200 can be simplified, the assembling process of the water heater 1000 can be simplified, and the production cost can be reduced; but also can reduce the processing quality problems such as water leakage and the like caused by welding and other processes.

Moreover, one end of the water outlet inner pipe 12 and one end of the water inlet outer pipe 13 are integrally arranged on the connecting base 11, so that on one hand, corresponding assembly steps can be avoided, and the installation process is simplified; on the other hand, the risk of water leakage can also be reduced.

Specifically, the connection water pipe 10 is made of an insulating material, such as plastic.

Further, as shown in fig. 9 and 11, the water outlet inner tube 12 is spaced apart from the water inlet outer tube 13 to form a water inlet channel 14 between the water outlet inner tube 12 and the water inlet outer tube 13. Thus, the space can be utilized greatly.

Optionally, the water outlet inner pipe 12 and the water inlet outer pipe 13 are concentrically arranged. So, be convenient for design mould to reduce the production degree of difficulty.

Of course, in other embodiments, the inner water outlet pipe 12 may be offset in the outer water inlet pipe 13, so that one side of the inner water outlet pipe 12 is integrally disposed with the outer water inlet pipe 13, and the water inlet channel 14 may also be formed between the inner water outlet pipe 12 and the outer water inlet pipe 13.

The utility model discloses in, set up outside water inner tube 12 through making outer tube 13 of intaking to utilize water inner tube 12 to form inhalant canal 14 between water inner tube 12 and the outer tube 13 of intaking, can be favorable to reducing the external diameter or the equivalent external diameter of intaking outer tube 13 (connecting water pipe 10 promptly), so can be favorable to reducing the diameter or the equivalent diameter of the enterprising water outlet of inner bag 200, with the intensity that is favorable to reinforcing/guaranteeing inner bag 200.

In a specific embodiment, the water inlet outer pipe 13 may be configured as a circular pipe, or may be configured as a pipe in other forms, such as a square pipe; it can be understood that when the outer water inlet pipe 13 is a circular pipe, the thickness of the outer water inlet pipe 13 can be expressed by the outer diameter; when the outer water inlet pipe 13 is a non-circular pipe, the thickness of the outer water inlet pipe 13 can be expressed by an equivalent diameter. Wherein the equivalent outer diameter is the diameter of a circle equal to the cross-sectional area of the non-round tube. Similarly, the outlet inner pipe 12 may be a circular pipe, or may be another type of pipe, such as a square pipe.

Further, the outer diameter or the equivalent outer diameter of the outer water inlet pipe 13 is greater than or equal to 22 mm and less than or equal to 50 mm, for example, 23 mm, 24 mm, 25 mm, 26 mm, 27 mm, 28 mm, 29 mm, 30 mm, 31 mm, 32 mm, 33 mm, 34 mm, 35 mm, 36 mm, 37 mm, 38 mm, 39 mm, 40 mm, 41 mm, 42 mm, 43 mm, 44 mm, 45 mm, 46 mm, 47 mm, 48 mm or 49 mm may be taken.

It can be understood that if the outer diameter or the equivalent outer diameter of the water inlet outer pipe 13 is too small, the water inlet channel 14 and the water outlet channel are seriously compressed, which is not beneficial to improving the water flow; if the outer diameter or the equivalent outer diameter of the water inlet outer pipe 13 is too large, the diameter or the equivalent diameter of the water inlet and outlet of the inner container 200 is too large, and the strength of the inner container 200 is easily reduced.

In this embodiment, in order to reduce the production difficulty and the matching difficulty with other components, the water inlet outer pipe 13 and the water outlet inner pipe 12 are both made of round pipes.

In the actual design, it can be understood that when water is sent into the inner container 200 from the outside, the water is usually sent to the bottom of the inner container 200, which is beneficial to water temperature stratification; when the (hot) water in the inner container 200 is discharged, the (hot) water at the upper part in the inner container 200 is usually discharged; thus, the upper end of the inner water outlet pipe 12 (i.e. the end far away from the connecting base 11) is required to be protruded upwards at the upper end of the outer water inlet pipe 13 (i.e. the end far away from the connecting base 11), so that the upper end of the inner water outlet pipe 12 is positioned at the upper part of the inner container 200; however, this will certainly increase the production difficulty of the connecting water pipe 10, such as the difficulty in demolding (even failing to demold), or the difficulty in making the mold (even failing to make), and so on.

In order to solve the problem, in the further improvement of the utility model, the length of the connecting water pipe 10 is limited, and the liner inner water outlet pipe 20 is additionally arranged; in other words, the water outlet pipe is divided into two sections, one section is integrally arranged on the connecting base 11 to form the connecting water pipe 10, and the other section is assembled subsequently. Thus, the difficulty in manufacturing the connecting water pipe 10 can be reduced.

Specifically, the water pipe assembly 100 further includes a bladder inner water outlet pipe 20 connected to an upper end of the water outlet inner pipe 12 (i.e., an end far from the connection base 11). Therefore, the liner inner water outlet pipe 20 is separately arranged at the upper end of the water outlet inner pipe 12, the length of the water outlet inner pipe 12 can be reduced, the length of the connecting water pipe 10 can be reduced, the mold stripping difficulty of the connecting water pipe 10 can be reduced, and the manufacturing difficulty of the connecting water pipe 10 can be reduced.

Specifically, the water outlet pipe 20 in the liner can be set as a universal standard component, so that the cost is reduced.

Further, as shown in fig. 9, the ratio of the length L1 of the inner water outlet pipe 20 of the bladder to the length L2 of the connecting water pipe 10 is greater than or equal to 0.9 and less than or equal to 3, and may be 0.95, 1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8 or 2.9, etc.

It can be understood that if the ratio of the length L1 of the water outlet pipe 20 in the liner to the length L2 of the connecting water pipe 10 is too small, the manufacturing difficulty of the connecting water pipe 10 is too high; if the length of the connection water pipe 10 is too large, the length of the connection water pipe 10 becomes too small, and the difficulty in mounting the connection water pipe 10 and the inner container 200 increases.

Further, as shown in fig. 9, a plurality of water supply holes 132 are formed at the upper end of the outer water inlet pipe 13, and the water supply holes 132 are communicated with the water inlet passage 14. Thus, the water in the water inlet passage 14 can be fed into the inner container 200 through the water feeding hole 132. Of course, in other embodiments, the water can be directly fed into the inner container 200 from the upper nozzle of the water inlet outer tube 13.

Further, as shown in fig. 9 and 10, the water pipe assembly 100 further includes a connection joint 30, the water outlet inner pipe 12 and the upper end of the water inlet outer pipe 13 (i.e., the end far away from the connection base 11) are both connected to one end of the connection joint 30, the lower end of the liner inner water outlet pipe 20 (i.e., the end facing the connection base 11) is connected to the other end of the connection joint 30, and the connection joint 30 has a water passing channel 31 for communicating the water outlet inner pipe 12 and the liner inner water outlet pipe 20.

Therefore, the connection joint 30 is arranged, so that the water outlet pipe 20 in the liner and the water pipe 10 can be conveniently connected.

Specifically, the upper end of the water outlet inner tube 12 is hermetically connected in the water passing channel 31, so that the water outlet inner tube 12 is communicated with the water passing channel 31; the lower end of the water inlet outer pipe 13 is hermetically connected in the water passing channel 31, so that the water inlet outer pipe 13 is communicated with the water passing channel 31. Therefore, the water outlet inner pipe 12 and the liner inner water outlet pipe 20 can be communicated through the water passage 31.

Of course, the upper end of the water outlet inner pipe 12 and the connection joint 30, that is, the lower end of the water inlet outer pipe 13 and the connection joint 30 may be connected by other methods, for example, the lower end of the water inlet outer pipe 13 may be sealed and disposed outside the connection joint 30, for example, the upper end of the water outlet inner pipe 12 may be sealed and disposed outside the connection joint 30, or embedded in the inner wall of the connection joint 30.

Further, as shown in fig. 9 and 10, a spacing protrusion 32 is protruded on an inner wall surface of the water passing channel 31, and the inner water outlet pipe 20 and the inner water outlet pipe 12 are respectively disposed on two sides of the spacing protrusion 32. Thus, the spacer projections 32 can position the liner inner outlet pipe 20 and the inner outlet pipe 12 during assembly, and can prevent the two from abutting.

Specifically, the spacing convex portion 32 may be disposed in a ring shape, or a plurality of (i.e., two or more) spacing convex portions may be annularly distributed.

Further, as shown in fig. 9 and 10, the connection joint 30 further has a connection ring groove 33 outside the communication passage, and the outer water inlet pipe 13 is hermetically connected in the connection ring groove 33. Thus, the connection strength between the water inlet outer pipe 13 and the connection joint 30 can be improved.

Alternatively, the water outlet pipe 20 in the liner and the connection joint 30 can be connected by means of thermal welding.

Alternatively, the connection water pipe 10 and the connection joint 30 may be connected by means of thermal welding.

Further, as shown in fig. 3, 9 and 11, the water inlet outer tube 13 includes an installation section 133 connected to the connection base 11, and a water delivery section 134 connected to the installation section 133, wherein the wall thickness of the installation section 133 is greater than that of the water delivery section 134.

Specifically, the water supply hole 132 is disposed in the water supply section 134.

It can be understood that the lower part of the water inlet outer pipe 13 needs to be connected with the inner container 200, and in order to improve the connection reliability, the requirement on strength is high, that is, a thicker pipe wall thickness is needed; the upper part of the water inlet outer pipe 13 only needs to send water into the inner container 200, the requirement on strength is low, and the thickness of the pipe wall can be reduced. Thus, the production cost can be reduced.

Further, as shown in fig. 3, 9 and 11, the water pipe assembly 100 further includes a guide pipe 40, the guide pipe 40 is disposed outside the water inlet outer pipe 13, the guide pipe 40 is disposed corresponding to the water supply section 134, the guide pipe 40 is provided with a plurality of guide holes 41, and a diameter or an equivalent diameter of each guide hole 41 is smaller than a diameter or an equivalent diameter of the water supply hole 132.

Specifically, the draft tube 40 and the water delivery section 134 are arranged at intervals.

Therefore, the water entering the inner container 200 can be shunted again, so that the water entering the inner container 200 is distributed more uniformly, and the heating is facilitated.

Specifically, as shown in fig. 3, 9 and 11, the wall thickness of the flow guiding pipe 40 is smaller than that of the water feeding section 134.

Further, as shown in fig. 3, 9 and 11, the outer tube wall of the mounting section 133 protrudes outward from the outer tube wall of the water feeding section 134, so that the tube wall thickness of the mounting section 133 is greater than that of the water feeding section 134. Thus, the inner wall surface of the inner water outlet pipe 12 can be a flat surface.

Further, as shown in fig. 3, 9 and 11, an end of the outer tube wall surface of the mounting section 133, which is away from the connection base 11, is provided with a mounting ring groove 135, and one end (i.e., a lower end) of the draft tube 40 is mounted in the mounting ring groove 135. Therefore, the lower end of the guide pipe 40 can be conveniently limited, and the guide pipe 40 is conveniently not laterally protruded out of the mounting section 133, so that the water pipe assembly 100 can conveniently extend into the inner container 200 through the water through hole.

Alternatively, the lower end of the draft tube 40 and the mounting section 133 may be connected by thermal welding.

Further, as shown in fig. 3, 9 and 11, the connection joint 30 further has a receiving step 34 located outside the connection ring groove 33, and the other end (i.e., the upper end) of the delivery pipe 40 is mounted at the receiving step 34. Thus, the upper end of the flow guide tube 40 can be conveniently limited.

Alternatively, the upper end of the draft tube 40 and the connection joint 30 may be connected by means of thermal welding.

Specifically, the outer wall surface of the draft tube 40 is flush with the outer wall surface of the mounting section 133. Therefore, on one hand, the water pipe assembly 100 can conveniently extend into the inner container 200 through the water through opening, and on the other hand, the appearance can be improved.

It should be noted that in some embodiments, no flow guide member may be provided.

In another embodiment of the present invention, in order to further reduce the manufacturing difficulty of the connection water pipe 10, the length of the connection water pipe 10 can be further reduced, but another section of water inlet pipe needs to be added to form a water feeding structure. That is, as shown in fig. 16 to 19, the water pipe assembly 100 may further include a liner inner water inlet pipe 51 and a liner inner water outlet pipe 20, the liner inner water outlet pipe 20 is connected to the water outlet inner pipe 12, the liner inner water inlet pipe 51 is connected to the water inlet outer pipe 13, the liner inner water inlet pipe 51 is disposed outside the liner inner water outlet pipe 20, and a liner inner water supply passage communicated with the water inlet passage 14 is formed between the liner inner water inlet pipe 51 and the liner inner water outlet pipe 20.

In this embodiment, further, as shown in fig. 19, the wall of the inner water inlet pipe 51 is smaller than the wall thickness of the outer water inlet pipe 13. Thus, the cost of the liner inlet pipe 51 can be reduced.

In this embodiment, as shown in fig. 19, the liner water inlet pipe 51 is provided with a plurality of water supply holes 132 communicating with the water supply passage.

In this embodiment, a plurality of the water supply holes 132 are distributed in the middle of the bladder water inlet pipe 51.

It can be understood that since the water inlet pipe 51 in the bladder is an independent structural member, the water supply hole 132 can be processed very small, so that the addition of the flow guide member is not needed.

In this embodiment, as shown in fig. 19, a connection ring protrusion 21 is protruded from the outer tube wall surface of the bladder inner water outlet tube 20, and the upper end of the bladder inner water inlet tube 51 is hermetically connected to the connection ring protrusion 21.

So, can carry on spacingly to courage inner water inlet pipe 51's upper end on the one hand, on the other hand also can realize sealing courage inner water inlet pipe 51's upper end.

In this embodiment, as shown in fig. 16, 17 and 19, the water pipe assembly 100 further includes a connecting sleeve 52, and the connecting sleeve 52 is hermetically disposed outside the connection between the bladder inner water inlet pipe 51 and the water inlet outer pipe 13. So, through setting up adapter sleeve 52, can improve the joint strength between courage inner water inlet pipe 51 and the outer pipe 13 that intakes on the one hand, on the other hand also can be favorable to improving the connection leakproofness between the two.

In this embodiment, the connection sleeve 52 may be welded to the outer side of the bladder inner water inlet pipe 51 by heat fusion welding.

In this embodiment, specifically, as shown in fig. 19, a sealing ring is disposed between the connection sleeve 52 and the water inlet outer pipe 13.

In this embodiment, as shown in fig. 16, 17 and 19, the water pipe assembly 100 further includes a connector, a support portion 136 is protruded from the outer pipe wall surface of the outer water inlet pipe 13, and the connector connects the support portion 136 and the connection sleeve 52, so that the connection sleeve 52 is fixed at the connection position of the inner water inlet pipe 51 and the outer water inlet pipe 13.

In this embodiment, specifically, as shown in fig. 16, 17 and 19, the connecting member includes a cross member 53 and a long connecting rod 54, the cross member 53 is forked to the connecting sleeve 52, and the long connecting rod 54 connects the cross member 53 and the supporting portion 136.

Optionally, the fork buckle 53 includes a fixed base 532 and a U-shaped fork 531 connected to the fixed base 532, a limiting fork groove 521 is formed in a side surface of the connecting sleeve 52, the U-shaped fork 531 is forked in the limiting fork groove 521, and the long connecting column 54 connects the fixed base 532 and the supporting portion 136.

In this embodiment, the long connecting post 54 may be selected from a bolt, a connecting pin, and the like.

In this embodiment, specifically, as shown in fig. 16, 17 and 19, an inner limiting step is formed at the upper end of the inner tube wall surface of the inner water outlet tube 12, and the lower end of the inner water outlet tube 20 of the bladder is provided with the inner limiting step.

In this embodiment, specifically, as shown in fig. 16, 17 and 19, an outer limit step is formed at the upper end of the outer tube wall surface of the outer water inlet tube 13, and the lower end of the inner liner water inlet tube 51 is provided at the outer limit step.

It should be noted that, in comparison with the structural form of the connection water pipe 10 in the above embodiment, in other embodiments, the connection water pipe 10 may also have a water inlet channel 14 for sending water into the inner container 200 and a water outlet channel for sending water out of the inner container 200 through other forms, for example, a straight plate-shaped, an arc-shaped or an S-shaped partition plate extending along the length direction of the connection water pipe 10 may be provided in the connection water pipe 10 to partition the water inlet channel 14 and the water outlet channel in the connection water pipe 10; a water outlet port 112 communicated with the water outlet channel can be arranged at the lower end of the connecting water pipe 10, and the extending direction of the central line of the water outlet port 112 is consistent with the length direction of the connecting water pipe 10; and the connecting water pipe 10 is provided with a side water inlet 131 communicated with the water inlet channel 14; and so on.

It will be appreciated that with the water tube assembly 100 of the above embodiment, there is also a need to address the problem of the water intake electricity protection wall.

Further, as shown in fig. 4, 5 and 9, or 16 to 19, the water pipe assembly 100 further includes an external water inlet pipe 80, the external water inlet pipe 80 is disposed outside the connection water pipe 10 (hereinafter, the connection water pipe 10 includes the connection base 11, the water outlet inner pipe 12, and the water inlet outer pipe 13 for example), and the external water inlet pipe 80 has a water inlet flow passage 81 communicated with the water inlet flow passage 81.

Specifically, the water inlet channel 81 is communicated with the side water inlet 131 to communicate with the water inlet passage 14 through the side water inlet 131.

It can be understood that, in the present invention, by arranging the external water inlet pipe 80 with the water inlet flow passage 81 outside the water inlet outer pipe 13, the water resistance can be formed outside the inner container 200, so as to form the water inlet electricity-proof wall structure outside the inner container 200, thereby on one hand, avoiding the water inlet electricity-proof wall structure inside the inner container 200, so as to save the inner space of the inner container; on the other hand, the water supply hole 132 can be arranged close to the bottom of the inner container 200, so that when water is supplied to the inner container 200, the water is supplied to the bottom of the inner container 200 to form water temperature stratification, and thus, the hot water at the top of the inner container 200 can be sequentially extruded out of the inner container 200 from the inner container inner water outlet pipe 20 by cold water at the bottom of the inner container 200 by utilizing the hot water stratification principle, so that the hot water output rate of the water heater 1000 can be improved.

Further, as shown in fig. 14 or 18, the water inlet channel 81 extends in a winding or turning manner. So, can improve space utilization to effectively increase inlet channel 81's total length under finite volume, so that increase water route resistance, anticreep effect is better.

Further, as shown in fig. 4, 5 and 9, or 16 to 19, the external water inlet pipe 80 is provided at one side of the water inlet outer pipe 13.

Thus, by providing the external water inlet pipe 80 at one side of the water inlet outer pipe 13, the overall structure of the water pipe assembly 100 can be made to be the same as or similar to the overall structure of the prior art in which the water inlet pipe and the water outlet pipe are provided, respectively, so as to facilitate the use of the existing common components, thereby reducing the production cost.

Moreover, the external water inlet pipe 80 and the water inlet pipe can be conveniently assembled (when the two are arranged in a split manner).

Further, as shown in fig. 4, 5 and 9, or 16-19, the outboard water inlet pipe 80 includes a water pipe main body 82 and a steering head 83, the water pipe main body 82 has a plurality of (i.e., greater than or equal to two) branch passages 821 extending along the length direction of the main body, one end of the water pipe main body 82 is connected to the water inlet outer pipe 13, wherein one of the branch passages 821 is communicated with the water inlet 131; the steering head 83 is installed at the other end of the water pipe main body 82, a steering flow passage 831 is arranged in the steering head 83, and the steering flow passage 831 is communicated with the two sub-flow passages 821, so that water in one of the sub-flow passages 821 is steered and flows to the other sub-flow passage 821 to form a rotationally extended water inlet flow passage 81.

In this manner, the outboard inlet pipe 80 is divided into the water pipe main body 82 and the diverter 83, and the water pipe main body 82 is provided with a plurality of branch passages 821 extending in the longitudinal direction of the main body, and the diverter 83 is provided with a diverter flow passage 831 communicating the two branch passages 821 to divert the water flow, so that the inlet flow passage 81 extending in a swiveling manner can be formed. Moreover, the manufacturing difficulty can be reduced.

Further, as shown in fig. 4, 5 and 9, or 16 to 19, the water pipe body 82 includes a plurality of branch pipe bodies, and each of the branch pipe bodies is provided with a branch passage 821. Thus, the difficulty in manufacturing the water pipe body 82 can be reduced.

Further, as shown in fig. 4, 5 and 9, or 16 to 19, a plurality of the branched pipes are integrally provided. Specifically, the pipe walls of the adjacent branch pipe bodies are integrally arranged. Thus, the assembly process can be simplified.

It will be appreciated that the number of sub-runners 821 is typically greater than the number of diverter runners 831. The diversion flow passage 831 and the branch flow passage 821 may be designed according to the number of the branch flow passages 821, the position of the water inlet port 86, the initial flow direction of the inlet water, and other factors, as will be described in the following.

In practical applications, it is necessary to provide the water inlet port 86 (the water inlet port 86 is communicated with one of the branch passages 821) on the water pipe body 82 or the steering head 83 for connecting with an external water supply pipe, so that the external water supply enters the water inlet passage 81 through the water inlet port 86 and flows into the water inlet channel 14 through the water inlet passage 81, which will be described separately below.

In the design in which the water inlet port 86 is provided in the steering head 83, the branch passage 821 connected to the water inlet port 86 does not need to be connected to the steering passage 831.

In one embodiment, as shown in fig. 4, 5 and 9, the outboard water inlet pipe 80 further includes a water inlet port 86, the water inlet port 86 is located at the lower side of the steering head 83 and is connected to the steering head 83, and the steering head 83 further has a steering connection flow passage 832 for communicating the water inlet port 86 with one of the branch flow passages 821.

It is to be understood that, since the water inlet port 86 is provided on the steering head 83, the initial water inlet direction of the water inlet flow passage 81 is a direction toward the connection base 11, and the number of the branch flow passages 821 may be set to an odd number greater than or equal to 3, such as 3 or 5.

In an embodiment, as shown in fig. 4, 5 and 9, the branch passages 821 are three and respectively include a first passage 821a, a second passage 821b and a third passage 821c communicated with the side water inlet 131, the turning connecting passage 832 is communicated with the water inlet interface 86 and the first passage 821a, and the turning passage 831 is provided with one to communicate the second passage 821b and the third passage 821 c; the other end of the first flow passage 821a communicates with the other end of the second flow passage 821 b. Correspondingly, the water pipe main body 82 comprises three branch pipe bodies, and each branch pipe body is internally provided with a branch flow passage 821; alternatively, the two sub-pipes may be arranged in a manner of "one sub-pipe is on top and one sub-pipe is on bottom", or in a manner of "one sub-pipe is on top and two sub-pipes are on bottom".

It can be understood that if there are 5 branch passages 821, one diversion passage 831 may be added accordingly.

Further, as shown in fig. 4, 5 and 9, the water inlet outer tube 13 is convexly provided with a water inlet protrusion 137, the water tube main body 82 is connected to the water inlet protrusion 137, and the water inlet protrusion 137 has a water inlet flow passage 1371 communicating the side water inlet 131 with the third flow passage 821c, and a diversion flow passage 1372 communicating the other end of the first flow passage 821a with the other end of the second flow passage 821 b.

In this way, the water inlet port 86, the first flow passage 821a, the diversion flow passage 1372, the second flow passage 821b, the diversion flow passage 831, the third flow passage 821c, and the like form the water inlet flow passage 81 extending in a revolving manner.

Alternatively, one end of the water pipe body 82 may be inserted into the water inlet protrusion 137 to improve connection reliability.

Alternatively, the water pipe 10 body and the water inlet protrusion 137 may be connected by thermal welding.

In another embodiment, referring to fig. 4, 5 and 9, the water inlet port 86 may be located at the lower side of the water pipe body 82 and connected to the water pipe body 82, and the water inlet port 86 is communicated with one of the branch passages 821.

It is understood that the branch passages 821 communicated with the water inlet port 86 may extend in a direction close to the connection base 11 so that the initial water inlet direction of the water inlet passage 81 is a direction toward the connection base 11, and in this case, the number of the branch passages 821 may be set to an odd number greater than or equal to 3, such as 3 or 5. The branch passages 821 communicated with the water inlet interface 86 may also extend in a direction close to the steering head 83, so that the initial water inlet direction of the water inlet passage 81 is a direction towards the steering head 83, in this case, the number of the branch passages 821 may be set to be an even number greater than or equal to 2, such as 2 or 4, and the number of the branch passages 831 is one less than the number of the branch passages 821.

As shown in fig. 16 to 19, two branch passages 821 may be provided, and one of the diversion passages 831 may communicate with the two branch passages 821, and one of them communicates with the water inlet joint and the other communicates with the side water inlet 131.

It should be noted that, with the above embodiment, especially when the number of the branch passages 821 and the branch pipes is small, such as 2 or 3, the water pipe main body 82 and the water inlet outer pipe 13 can be integrally arranged, so as to reduce the assembly process.

It should be noted that, in the above embodiments, the total length of the water inlet channel 81 is greater than or equal to 100 mm and less than or equal to 300 mm, for example, 110 mm, 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm, 260 mm, 270 mm, 280 mm, or 290 mm may be adopted.

It can be understood that, from the water resistance calculation formula R ═ ρ L/S and the leakage current calculation formula I ═ U/R where ρ is 1250 Ω m and U is usually 220V, it can be understood that, the smaller the total length of the water inlet channel 81 is, the smaller the inner diameter or equivalent inner diameter of the water inlet channel 81 is, in order to make the leakage current meet the national standard, the less the water inlet channel 81 is, which is not favorable for increasing the water flow rate; when the total length of the water inlet channel 81 is larger, the diameter or equivalent diameter of the water inlet channel 81 can be increased on the premise that the leakage current meets the national standard, so as to improve the water flow rate; therefore, it is desirable to limit the total length of the water inlet channel 81 to a proper range, for example, the total length of the water inlet channel 81 is greater than or equal to 120 mm and less than or equal to 250 mm.

Further, the inner diameter or equivalent inner diameter of the water inlet channel 81 may be made greater than or equal to 3.5 mm and less than or equal to 8 mm. Therefore, the leakage current can be in the range of 1.69-8.84mA to meet the national standard; the water inlet flow passage 81 can also have a large flow rate of water.

It should be noted that, for the above embodiments, the positions of the water outlet joint and the water inlet joint can be consistent with the positions of the water inlet pipe and the water outlet pipe respectively arranged in the prior art, so that the existing electricity-proof wall cover can be adopted, the cost for newly opening the electricity-proof wall cover mold can be saved, and the production cost can be reduced.

Of course, in other embodiments, the external water inlet pipe 80 may be disposed in other manners, for example, the external water inlet pipe 80 may be bent or bent to bypass the water inlet flow channel 81 connected to the peripheral side of the water pipe 10; and so on.

It is appreciated that in further embodiments of the present invention, there is still a need to address the issue of water flow monitoring as compared to the water tube assembly 100 of the above embodiments.

Further, as shown in fig. 4, 5, 8, 9 and 12, the water pipe assembly 100 further includes a flow sensor 90, and the flow sensor 90 includes a magnetic rotor 91 disposed in the water inlet channel 81 and a hall element 92 disposed outside the external water inlet pipe 80. Specifically, the hall element 92 is located on one side of the rotational axis of the magnetic rotor 91.

Specifically, the magnetic rotor 91 is made of a magnetic material, such as a magnet, and has magnetism. When water in the water inlet flow channel 81 flows, the magnetic rotor 91 can be driven to rotate, the change of the magnetic pole can be sensed by the Hall element 92 when the magnetic rotor 91 rotates, so that a feedback signal can be sent to the control unit of the water heater 1000, the water flow in the water inlet flow channel 81 can be monitored, and the control unit can realize water consumption statistics, a water outlet power-off function and the like. And moreover, a user can be prompted to clean the whole machine at regular time and the like.

In a specific application, the flow sensor 90 may be disposed on the water pipe main body 82, in which case, the magnetic rotor 91 may be disposed in one of the branch flow passages 821, and the hall element 92 may be disposed outside the water pipe main body 82; the flow sensor 90 may be provided on the steering head 83, and in this case, the magnetic rotor 91 may be provided in the steering flow path 831 or the steering connection flow path 832, and the hall element 92 may be provided outside the steering head 83.

Specifically, as shown in fig. 4, 5, 8, 9 and 12, the magnetic rotor 91 is disposed in the diversion flow passage 831, and the hall element 92 is disposed outside the diversion head 83.

Further, as shown in fig. 4, 5, 8, 9 and 12, the turning connecting flow passage 832 includes a first flow section 8321 extending in a direction consistent with the length direction of the water pipe body 82 and a second flow section 8322 extending in a direction consistent with the extending direction of the center line of the water inlet port 86, the first flow section 8321 intersects and communicates with the second flow section 8322, the first flow section 8321 communicates with the branch flow passage 821, and the second flow section 8322 communicates with the water inlet port 86. In this way, the water in the water inlet 86 can be diverted through the second flow section 8322 and the first flow section 8321 and then fed into the branch passage 821.

Further, as shown in fig. 4, 5, 8, 9 and 12, the magnetic rotor 91 is disposed within the second flow section 8322.

Further, as shown in fig. 4, 5, 8, 9 and 12, the outboard water inlet pipe 80 further includes a plug 84, the steering head 83 further has a mounting opening 833 communicated with the second flow section 8322, an extending direction of a center line of the mounting opening 833 is consistent with an extending direction of the second flow section 8322, the magnetic rotor 91 is configured to be mounted in the second flow section 8322 through the mounting opening 833, and the plug 84 is hermetically connected to the mounting opening 833. Thus, the mounting of the magnetic rotor 91 can be made simple and convenient.

Specifically, the plug 84 is provided with an external thread, and the inner wall surface of the mounting hole 833 is provided with an internal thread, so that the plug 84 is in threaded connection with the mounting hole 833.

Further, as shown in fig. 4, 5, 8, 9 and 12, a limiting step is formed in the second flow section 8322, the plug 84 includes a stopping convex pillar 841, one end of the magnetic rotor 91 is limited at the limiting step, and the stopping convex pillar 841 abuts against the other end of the magnetic rotor 91. In this manner, the magnetic rotor 91 may be confined within the second flow section 8322.

Further, as shown in fig. 4, 5, 8, 9 and 12, the steering head 83 includes a steering column 834 and a connecting column 835 protruding on one side of the steering column 834, the water inlet 86 is connected to the lower end of the steering column 834, the mounting port 833 and the second flow segment 8322 are both disposed on the steering column 834, and the hall element 92 is disposed outside the steering column 834; the connecting column 835 is connected to the hose body 82. Specifically, the first flow passage 821a and the turning flow passage 831 may be disposed on the connecting column 835 partially and the turning column 834 partially, the first flow passage 821a may be disposed on the connecting column 835 partially and the turning column 834 partially, but the turning flow passage 831 is disposed on the connecting column 835, and so on.

In this manner, the connection of the steering head 83 to the water pipe main body 82 can be facilitated.

Specifically, the steering flow passage 831 may be a U-shaped flow passage, a confluence groove, or the like.

Further, as shown in fig. 4, 5, 8, 9 and 12, a mounting plane 8341 is formed at one side of the steering column 834, and the hall element 92 is mounted on the mounting plane 8341. Thus, the hall element 92 can be easily mounted, and the mounting reliability of the hall element 92 can be improved.

Specifically, the mounting plane 8341 is disposed on a side of the steering column 834 that faces away from the attachment base 11.

Specifically, a fixed column is convexly provided on the surface of the steering column 834, and the hall element 92 is connected to the fixed column.

Optionally, two fixed columns are provided, and are respectively provided on two sides of the steering column 834.

Optionally, the fixing column is a threaded column.

It should be noted that in other embodiments, the magnetic rotor 91 may be disposed within the first flow section 8321 and a side loading port may be provided on the side of the steering head 83 to mount the magnetic rotor 91; and the hall element 92 is provided at the upper end of the steering head 83.

It should be noted that in some embodiments, the flow sensor 90 may not be provided.

It is understood that, for the water pipe assembly 100 in the above embodiment, in a further embodiment of the present invention, there is still a need to solve the problem that the connection water pipe 10 is easily damaged.

Further, as shown in fig. 2, 4, 5, 8, 9 and 12, the external water inlet pipe 80 further includes an auxiliary fixing foot 85, and the auxiliary fixing foot 85 is used for connecting with the outer shell of the water heater 1000.

Specifically, the auxiliary fixing foot 85 may be disposed on the water pipe main body 82 or the steering head 83.

Therefore, the auxiliary fixing foot 85 is additionally arranged on the external water inlet pipe 80 and connected with the shell of the water heater 1000, so that the connection strength and the stability of the water pipe assembly 100, the liner 200 and the shell can be improved, the risk of the connection of the connecting water pipe 10 being twisted and damaged and the risk of the crack of the connection of the external water inlet pipe 80 and the connecting water pipe 10 can be reduced, and the reliability of the water pipe assembly 100 and the reliability of the water heater 1000 can be improved.

Further, as shown in fig. 2, 4, 5, 8, 9 and 12, the external water inlet pipe 80 is disposed at one side of the connecting water pipe 10, and the auxiliary fixing foot 85 is located at one end of the external water inlet pipe 80 far away from the connecting water pipe 10.

Specifically, the auxiliary fixing leg 85 may be provided at an end of the water pipe main body 82 remote from the water pipe 10, or may be provided on the steering head 83. In the present embodiment, as shown in fig. 2, 4, 5, 8, 9 and 12, the auxiliary fixing leg 85 is provided to the steering head 83.

In this way, the auxiliary fixing leg 85 is connected to the housing at a position away from the connection water pipe 10.

Specifically, as shown in fig. 2, 4, 5, 8, 9 and 12, the auxiliary fixing leg 85 is provided on a steering column 834 of the steering head 83.

Further, as shown in fig. 2, 4, 5, 8, 9 and 12, the auxiliary fixing leg 85 is provided on a side of the steering column 834 remote from the connecting water pipe 10. Thus, on the one hand, the connection position of the auxiliary fixing leg 85 and the housing can be further away from the connection water pipe 10, and on the other hand, the installation interference can be reduced, so as to connect the auxiliary fixing leg 85 and the housing.

Specifically, the auxiliary fixing leg 85 is provided at an upper end of the steering column 834.

Specifically, the auxiliary fixing feet 85 are located above the mounting plane 8341.

Further, as shown in fig. 2, 4, 5, 8, 9 and 12, the auxiliary fixing foot 85 is provided integrally with the steering column 834. Thus, on the one hand, the structure can be simplified, and on the other hand, the corresponding assembly steps can be reduced.

Further, the auxiliary fixing leg 85 is disposed in a plate shape. Thus, the structure can be simplified to facilitate connection with the housing. Of course, in other embodiments, the auxiliary fixing leg 85 may be configured to be block-shaped or column-shaped, for example, the auxiliary fixing leg 85 is a screw hole column.

Optionally, a connecting rib is further disposed between the auxiliary fixing foot 85 and the steering column 834.

Further, as shown in fig. 2, 4, 5, 8, 9 and 12, screw through holes (not shown) are provided on the auxiliary fixing legs 85. Specifically, screws are inserted through the screw holes to connect the auxiliary fixing legs 85 to the housing.

Thus, the auxiliary fixing leg 85 can be easily and conveniently connected with the housing, and the connection is firm.

Of course, in other embodiments, other manners may also be used to connect the auxiliary fixing pin 85 and the housing, for example, a fastening structure for fastening the auxiliary fixing pin 85 to the housing is provided on the auxiliary fixing pin 85, so as to connect the auxiliary fixing pin 85 and the housing through the fastening structure; and the like.

It is understood that, for the water tube assembly 100 of the above embodiment, in a further embodiment of the present invention, the connection between the water tube 10 and the inner container 200 needs to be considered.

It can be understood that, in practical applications, the inner container 200 is usually provided with a water pipe joint 210 at the water passage port, the connection water pipe 10 extends into the inner container 200 through the water pipe joint 210 and the water passage port, and the connection water pipe 10 is connected to the water pipe joint 210 so that the connection water pipe 10 is fixed to the inner container 200, and the connection problem between the water pipe assembly 100 and the inner container 200 based on the water pipe joint 210 will be further described below.

Further, as shown in fig. 2-7, 9 and 11, the water pipe assembly 100 further includes an adapter 60, the adapter 60 is disposed outside the connecting water pipe 10, the adapter 60 includes a first adapter section 61 connected to the connecting water pipe 10 in a sealing manner, and a second adapter section 62 connected to one end of the first adapter section 61, and the second adapter section 62 is used for being connected to the water pipe joint 210 in a sealing manner.

Specifically, the first adapter section 61 is hermetically connected to the outer water inlet pipe 13 (the contents of this part are described by taking the example that the connecting water pipe 10 includes the connecting base 11, the inner water outlet pipe 12 and the outer water inlet pipe 13 as an example).

Specifically, the first switching section 61 is hermetically connected outside the connecting water pipe 10, so that the water in the liner 200 of the liner 200 can be prevented from leaking from the connection part of the first switching section 61 and the connecting water pipe 10; by hermetically connecting the second adapter section 62 to the water pipe joint 210, water in the liner 200 can be prevented from leaking from the connection between the second adapter section 62 and the water pipe joint 210, and thus, the leakage in the liner 200 can be prevented.

Therefore, the water pipe joint 210 and the connecting water pipe 10 of the inner container 200 are connected by additionally arranging the adapter 60, so that the connecting difficulty between the water pipe joint and the connecting water pipe can be reduced, and the connection sealing performance can be improved.

It should be noted that, for the solution that "the outer water inlet pipe 13 includes the mounting section 133 and the water feeding section 134", the first adapter section 61 is connected with the mounting section 133 in a sealing manner.

Further, as shown in fig. 2 to 7, 9 and 11, the inner diameter of the second coupling section 62 is larger than that of the first coupling section 61, and the inner surface of the second coupling section 62 is provided with an internal thread for screw-coupling with the water pipe joint 210.

Specifically, the outer circumferential surface of the water pipe joint 210 is provided with external threads, so that during assembly, the second adapter section 62 can be in threaded connection with the water pipe joint 210 by rotating the adapter 60, so that the adapter 60 is fixed on the liner 200.

So, through set up the internal thread at the internal surface of second switching section 62, make its and water pipe head 210 threaded connection, not only can make adapter 60 and water pipe head 210 be connected and become simple, convenient, firm in connection, and still be favorable to improving and connect the leakproofness.

It should be noted that, in practical application, based on the process requirements, the interior of the inner container 200 generally needs to be enameled, and after the enamel treatment, high-temperature curing is needed, and the temperature is as high as 800 ℃. Due to the fluidity of the enamel inside the inner container 200, the inner wall surface of the water pipe connector 210 is uneven, which is not favorable for connecting the water pipe 10 and the water pipe connector 210 in a radial sealing manner.

And the utility model discloses in, through setting up adapter 60 to make the internal face of second switching section 62 of adapter 60 and water pipe head 210's outer peripheral face threaded connection, can make the connection of connecting water pipe 10 and water pipe head 210 can not receive the influence of water pipe head 210 internal face.

Further, as shown in fig. 2 to 7, 9 and 11, the water pipe assembly 100 further includes a first annular sealing member 55, and the first annular sealing member 55 is adapted to be disposed between an end surface of the first transition section 61 and a joint end surface of the water pipe joint 210.

Specifically, the first annular sealing element 55 is disposed outside the water inlet outer tube 13.

It can be understood that, since the inner diameter of the second adapter section 62 is larger than that of the first adapter section 61, a step surface, i.e. an end surface of the first adapter section 61, is formed at the joint of the first adapter section 61 and the second adapter section 62; therefore, the end face of the first adapter section 61 can be abutted against the joint end face of the water pipe joint 210, and the first annular sealing element 55 can be arranged between the two end faces, so that end face sealing can be formed, and a connecting structure of threaded connection and end face sealing can be formed.

In other words, in the utility model discloses in, the fastening function is realized with water pipe head 210's outer peripheral face threaded connection to the internal face of second switching section 62 to realize sealing function through end face seal, namely make sealing function and fastening function separately.

Specifically, the first annular member is a seal, such as a rubber seal or the like.

Further, as shown in fig. 2-7, 9 and 11, the water tube assembly 100 further includes a second annular seal 56, the second annular seal 56 being disposed between the inner tube wall of the first transition section 61 and the outer tube wall of the connecting water tube 10.

In this manner, a radial seal is achieved by providing a second annular seal 56 between the inner tube wall of the first transition section 61 and the outer tube wall of the connecting water tube 10.

Specifically, the second annular seal 56 is disposed between the inner pipe wall of the first transition section 61 and the outer pipe wall of the outer water inlet pipe 13.

In particular, the second annular seal 56 may alternatively be a sealing ring, such as an O-ring or the like.

Further, as shown in fig. 2 to 7, 9 and 11, the outer tube wall surface of the connecting water tube 10 is provided with an annular receiving groove 138, and the second annular sealing element 56 is disposed in the annular receiving groove 138. Specifically, the annular accommodating groove 138 is formed in the outer wall surface of the water inlet outer pipe 13.

In this manner, the confinement of the second annular seal 56 may be facilitated.

Further, as shown in fig. 2-7, 9 and 11, the second annular sealing element 56 is distributed at intervals (i.e. greater than or equal to 2), such as 2, 3 or 4, in the length direction of the connecting water pipe 10.

Specifically, a plurality of (i.e. greater than or equal to 2) annular accommodating grooves 138 are distributed at intervals in the length direction of the connecting water pipe 10, and each annular accommodating groove 138 is provided with a second annular sealing element 56.

Further, as shown in fig. 2 to 7, 9 and 11, the outer tube wall surface of the connection water pipe 10 is convexly provided with a first connection protrusion 139, the outer tube wall surface of the first junction section 61 is convexly provided with a second connection protrusion 611, the first junction section 61 abuts against the first connection protrusion 139, and the second connection protrusion 611 is connected with the first connection protrusion 139, so that the connection water pipe 10 is fixedly connected to the first junction section 61.

Specifically, the first coupling protrusion 139 is provided on the outer tube wall surface of the outer water inlet tube 13.

Specifically, the first adapter section 61 is disposed between the water pipe joint 210 and the water pipe joint 210, the upper end surface of the first adapter section 61 abuts against the end surface of the water pipe joint 210, and the lower end surface of the first adapter section 61 abuts against the side surface of the first connecting convex portion 139.

Specifically, the adapter 60 is fixedly connected to the water pipe joint 210 of the inner container 200 through the first adapter section 61, and the connection water pipe 10 is connected to the adapter 60 through the second adapter section 62, so that the connection water pipe 10 is fixedly connected to the inner container 200.

Furthermore, the first connecting protrusion 139 is protruded on the outer wall of the connecting water pipe 10, and the second connecting protrusion 611 is protruded on the outer wall of the first adapter section 61, so that the first connecting protrusion 139 is connected to the second connecting protrusion 611 to connect the adapter 60 and the connecting water pipe 10, thereby reducing the difficulty of connection.

Further, as shown in fig. 2 to 7, 9 and 11, the second connecting protrusion 611 is provided at one end of the first transition section 61, and the second connecting protrusion 611 abuts against the first connecting protrusion 139. Thus, on the one hand, the miniaturization design is facilitated, and on the other hand, the connection stability can be improved. Of course, in other embodiments, the second connecting protrusion 611 may be disposed in the middle of the first transition section 61, and the second connecting protrusion 611 is spaced apart from the first connecting protrusion 139.

Further, as shown in fig. 2 to 7, 9 and 11, the first coupling protrusion 139 is ring-shaped, and/or the first coupling protrusion 139 is ring-shaped. Thus, the design can be simplified. Of course, in other embodiments, the first connecting protrusion 139 may include a plurality of first protrusions distributed annularly, and/or the second connecting protrusion 611 includes a plurality of second protrusions distributed annularly.

In the present embodiment, as shown in fig. 2 to 7, 9 and 11, the first coupling protrusion 139 is ring-shaped, and the first coupling protrusion 139 is ring-shaped.

Further, the adapter 60 is made of a corrosion-resistant material (such as stainless steel); alternatively, the surface of the adapter 60 may be provided with a corrosion resistant layer (e.g., nickel and/or chromium may be plated on the surface of the adapter 60 made of (Q235) steel, or nickel and/or chromium may be plated on the surface of the adapter 60 made of zinc alloy, etc.).

Thus, the corrosion resistance of the adapter 60 can be improved, and the service life can be prolonged.

In a specific application, the connection form between the first connection protrusion 139 and the second connection protrusion 611 is various, and the following examples are given.

Further, as shown in fig. 2 to 7, 9, 11 and 13, the water pipe assembly 100 further includes a clamping member 70, and the clamping member 70 connects the first connecting protrusion 139 and the second connecting protrusion 611, that is, the first connecting protrusion 139 and the second connecting protrusion 611 are connected by the clamping member 70.

Thus, the first connecting protrusion 139 and the second connecting protrusion 611 are connected by the clip 70, so that the quick installation can be realized.

Further, the clip member 70 is a clip.

Specifically, as shown in fig. 2-7, 9, 11 and 13, the clamping member 70 includes a connection substrate 71 and two clamping spring pieces 72 respectively connected to two ends of the connection substrate 71, the clamping spring pieces 72 are provided with clamping holes 721 extending along the length direction of the clamping spring pieces 72, the two clamping spring pieces 72 are respectively disposed at two sides of the connection water pipe 10, and the first connection protrusion 139 and the second connection protrusion 611 are clamped in the clamping holes 721.

Specifically, the two clamping elastic pieces 72 are respectively disposed on two sides of the water inlet outer tube 13.

Specifically, each clamping elastic sheet 72 may be provided with a clamping hole 721, and the first connecting protrusion 139 and the second connecting protrusion 611 are clamped in the clamping hole 721; each of the clip elastic pieces 72 may also be provided with two clip holes 721, and the first connecting protrusion 139 and the second connecting protrusion 611 are respectively clipped in the two clip holes 721.

In the present embodiment, as shown in fig. 2-7, 9, 11 and 13, each clip spring 72 is provided with a clip hole 721.

Specifically, the two clamping elastic pieces 72 are respectively abutted against two sides of the connecting water pipe 10.

During assembly, the two clamping elastic pieces 72 are opened by external force, so that the first connecting convex part 139 and the second connecting convex part 611 are clamped in the clamping hole 721, the two clamping elastic pieces 72 reset under the action of self elastic force and respectively abut against two sides of the connecting water pipe 10, and the first connecting convex part 139 and the second connecting convex part 611 are limited in the length direction (namely, the axial direction) of the connecting water pipe 10.

Further, as shown in fig. 2 to 7, 9, 11 and 13, the clamping spring 72 includes an elastic supporting section 722 connected to the connection substrate 71, and a clamping section 723 connected to the elastic supporting section 722, where the clamping section 723 is arranged in an arc shape, and the clamping section 723 elastically abuts against the first transition section 61 and the outside of the connection water pipe 10.

Thus, by making the clamping section 723 arc-shaped, the limit effect on the first switching section 61 and the connecting water pipe 10 can be enhanced.

Further, as shown in fig. 2 to 7, 9, 11 and 13, the clamping section 723 includes a first clamping section 7231 and a second clamping section 7232 respectively disposed at two sides of the clamping hole 721, a diameter of the first clamping section 7231 is larger than a diameter of the second clamping section 7232, so that the first clamping section 7231 is adapted to be disposed outside the first clamping section 61, and the second clamping section 7232 is adapted to be disposed outside the connecting water pipe 10.

Specifically, it can be understood that, since the first adapter section 61 is disposed outside the connection water pipe 10, the outer diameter or equivalent outer diameter of the first adapter section 61 is larger than the outer diameter of the connection water pipe 10, so that the diameter of the first clamp section 7231 is larger than the diameter of the second clamp section 7232 to improve the adaptability.

2-7, 9, 11, and 13, the first card section 7231 is positioned above the second card section 7232.

Further, as shown in fig. 2 to 7, 9, 11 and 13, the side edge of the second card sub-section 7232 is provided with a first side pressing piece 7233, and the first side pressing piece 7233 abuts against the first connecting protrusion 139; and/or the side edge of the first card sub-section 7231 is arranged on the second side pressing piece which abuts against the second connecting convex part 611.

Thus, on the one hand, the structural strength of first card section 7231 and/or second card section 7232 can be increased, and on the other hand, the connection stability can also be increased.

In this embodiment, the lateral edge of the second card sub-section 7232 is provided with a first lateral pressing piece 7233, and the first lateral pressing piece 7233 abuts against the first connecting protrusion 139.

Further, as shown in fig. 2-7, 9, 11 and 13, a first limiting portion is arranged on the connecting water pipe 10, and the first limiting portion is used for limiting the rotation of the clamping member 70; and/or, a second limiting part is arranged on the first switching section 61, and the second limiting part is used for limiting the rotation of the clamping piece 70.

So, can prevent joint spare 70 and be connected water pipe 10 and adapter 60 relative rotation to can realize preventing to connect water pipe 10 and adapter 60 relative rotation, it is spacing completely to realize connecting water pipe 10 and adapter 60.

In a specific application, the first position-limiting portion and/or the second position-limiting portion have a plurality of structural forms, which will be described below by way of example.

Further, as shown in fig. 2-7, 9, 11 and 13, the first limiting portion includes two first limiting plates 13a protruding from the outer wall surface of the connecting water pipe 10, the two first limiting plates 13a are distributed at intervals in the circumferential direction of the connecting water pipe 10, the two first limiting plates 13a are located between two elastic supporting sections 722, one of the first limiting plates 13a abuts against one of the elastic supporting sections 722, and the other one of the first limiting plates 13a abuts against the other elastic supporting section 722 to limit the rotation of the engaging member 70. Specifically, the first limit plate 13a is disposed on the water inlet outer pipe 13.

Specifically, the first limiting plate 13a is further connected to the first connecting protrusion 139, so as to enhance the structural strength.

Of course, in other embodiments, the first limiting portion may also be a first limiting protrusion protruding from the outer wall of the connecting water pipe 10, the first limiting protrusion is disposed between the two elastic supporting sections 722, and two side surfaces of the first limiting protrusion are respectively (used for) abutted against the two elastic supporting sections 722 to limit the rotation of the engaging member 70; and so on.

Similarly, the second limiting portion may include two first limiting plates 13a protruding from the outer tube wall of the first transition section 61; or, the second limiting part is a second limiting block which is convexly arranged on the wall surface of the outer tube of the first switching section 61.

Further, as shown in fig. 2 to 7, 9, 11 and 13, the clip elastic piece 72 further includes a guiding section 724 connected to the clip section 723, and the guiding section 724 extends obliquely away from the other clip elastic piece 72. Thus, the assembly of the clip 70 can be facilitated.

It can be understood that, compared to connecting the first connecting protrusion 139 and the second connecting protrusion 611 by screwing, by connecting the first connecting protrusion 139 and the second connecting protrusion 611 by the above snap-in 70, quick installation can be achieved.

Further, as shown in fig. 2-7, 9, 11 and 13, the clip 70 further includes a plug 725 connected to the connection substrate 71 or the clip 72, and the plug 725 is used for connecting with the earth leakage protection device.

Specifically, the plug-in strip 725 may be used to connect a leakage protection indicator light.

Thus, the use safety can be improved.

Specifically, the plug piece 725 is provided on the side edge of the fastening hole 721 near the connection substrate 71, or the plug piece 725 is provided on the lower side edge of the connection substrate 71.

It should be noted that, in other embodiments, the first connecting protrusion 139 and the second connecting protrusion 611 may be connected in other manners, for example, the water pipe assembly 100 may further include a fastener (e.g., a screw or a connecting pin, etc.) that connects the first connecting protrusion 139 and the second connecting protrusion 611; and so on.

It should be noted that, in other embodiments, the clip member 70 may be provided in other structural forms.

As shown in fig. 22, in the second embodiment of the clamping member 70, the clamping member 70 includes a first clamping half ring 73 and a second clamping half ring 74 respectively disposed at two sides of the connecting water pipe 10, the first clamping half ring 73 has a first clamping groove, the second clamping half ring 74 has a second clamping groove, and the first connecting protrusion 139 and the second connecting protrusion 611 are clamped in the first clamping groove and the second clamping groove; the first end of first clamping semi-ring 73 and the first end of second clamping semi-ring 74 can be dismantled and be connected or can rotate and be connected, the second end of first clamping semi-ring 73 with the second end of second clamping semi-ring 74 passes through joint structure and connects.

Specifically, as shown in fig. 22, one of the second end of the first half clamping ring 73 and the second end of the second half clamping ring 74 is provided with a reverse buckle 731, and the other is provided with a clamping hole, and the reverse buckle 731 is clamped in the clamping hole.

Alternatively, as shown in fig. 22, the first end of the first half clamping ring 73 and the first end of the second half clamping ring 74 may be detachably connected through a lock screw structure, a clamping structure, or the like.

It should be noted that, in other embodiments, the first adapter section 61 may be connected to the connecting water pipe 10 in other manners, for example, the inner surface of the first adapter section 61 may be provided with an internal thread, and the outer wall of the connecting water pipe 10 may be provided with an external thread, so that the first adapter section 61 is screwed outside the connecting water pipe 10; and so on.

It should be particularly noted that the above solution of connecting the water supply pipe joint 210 of the inner container 200 and the water connection pipe 10 through the adapter 60 can also be applied to the connection between a single water inlet pipe or water outlet pipe and the water supply pipe joint 210 of the inner container 200 in the prior art, and there is no insurmountable obstacle, that is, the water connection pipe 10 is only a single water inlet pipe or water outlet pipe, and accordingly, the water passage opening on the inner container 200 is the water inlet opening on the inner container or the water outlet opening on the inner container.

It should be noted that, alternatively, in the above embodiments, the liner water outlet pipe 20 may include the metal outer pipe 22 and the plastic inner pipe 23 disposed inside the metal outer pipe 22.

In yet another embodiment of the present invention, as shown in fig. 20 and 21, in this embodiment, the flow guide and the flow sensor 90 are not provided.

In yet another embodiment of the present invention, as shown in fig. 22, in this embodiment, the water pipe main body 82 includes three branch pipes, each of which is provided with a branch passage 821, two of which are on top and the other one is under. In this embodiment, the clamping member 70 includes a first clamping half ring 73 and a second clamping half ring 74.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (13)

1. A water tube assembly for a water heater, the water tube assembly comprising:

the water outlet device comprises a connecting water pipe, a water outlet pipe and a water outlet pipe, wherein the connecting water pipe is provided with a water inlet channel and a water outlet channel; a side water inlet communicated with the water inlet channel is arranged on the connecting water pipe; and

the external inlet tube, external inlet tube has circuitous water inlet channel who extends or gyration is extended, external inlet tube is located outside the connecting water pipe, water inlet channel with the side inlet intercommunication.

2. The water tube assembly of claim 1, wherein the outboard water inlet tube is disposed on one side of the connecting water tube.

3. The water tube assembly as claimed in claim 2, wherein the outboard water inlet tube includes a water tube body having a plurality of sub-channels extending along a length direction of the body, and a turn-around head, one end of the water tube body being connected to the connection water tube, wherein one of the sub-channels is in communication with the side water inlet; the steering head is arranged at the other end of the water pipe main body, a steering runner is arranged in the steering head, and the steering runner is communicated with the two sub-runners, so that water in one sub-runner can flow to the other sub-runner after being steered, and the water inlet runner is formed.

4. A water hose assembly as claimed in claim 3, wherein the water hose body comprises a plurality of branch bodies, one of said branch passages being provided in each of said branch bodies.

5. The water hose assembly according to claim 3, wherein the external water inlet pipe further comprises a water inlet port, the water inlet port is located at the lower side of the water hose body and connected to the water hose body, and the water inlet port is communicated with one of the branch passages.

6. The water hose assembly according to claim 5, wherein the branched passages are provided in two numbers, and the diverting passage is provided in one number to communicate the two branched passages.

7. The water pipe assembly as recited in claim 3, wherein said outboard water inlet pipe further comprises a water inlet port, said water inlet port is located on the lower side of said steering head and connected to said steering head, said steering head further having a steering connection flow passage communicating said water inlet port with one of said sub-flow passages.

8. The water tube assembly of claim 7, wherein there are three of said sub-channels, which are a first channel, a second channel, and a third channel communicating with said side water inlet, and said diversion connection channel communicates said water inlet port with said first channel; one steering flow passage is arranged to communicate the second flow passage with the third flow passage; the other end of the first flow passage is communicated with the other end of the second flow passage.

9. The water pipe assembly as claimed in claim 8, wherein the connection water pipe is provided with a water inlet protrusion, the water pipe body is connected to the water inlet protrusion, and the water inlet protrusion has a water inlet passage communicating the side water inlet with the third passage, and a diversion passage communicating the other end of the first passage with the other end of the second passage.

10. The waterway assembly of claim 3, wherein the waterway body is integrally formed with the connecting waterway.

11. The water tube assembly according to any one of claims 1 to 10, wherein the outer diameter or equivalent outer diameter of the connection water tube is greater than or equal to 22 mm and less than or equal to 50 mm.

12. The waterway assembly of any of claims 1-10, wherein the connecting waterway comprises:

the water outlet connector is arranged on the lower side of the connecting base and is communicated with the water outlet through hole;

one end of the water outlet inner pipe is integrally arranged on the connecting base part, and the water outlet inner pipe is communicated with the water outlet through hole; and

the outer tube of intaking, the one end an organic whole of outer tube of intaking is located connect the basal portion, the outer tube of intaking is located go out the water inner tube outside, the outer tube of intaking go out the water inner tube and connect and be formed with the water inlet passage between the basal portion, the side inlet is located on the outer tube of intaking, external inlet tube is located outside the outer tube of intaking.

13. A water heater, characterized in that it comprises:

the inner container is provided with a water inlet and a water outlet; and

a water tube assembly as claimed in any one of claims 1 to 12, provided at the water inlet and outlet.

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