CN214307638U - Water pipe assembly and water heater - Google Patents

Abstract

The utility model discloses a water pipe assembly and water heater. The water pipe assembly comprises a connecting base part, an inner water outlet pipe, an outer water inlet pipe and a water mixing valve, wherein the connecting base part is provided with a water mixing cavity, a water mixing water outlet communicated with the water mixing cavity and a first water inlet communicated with the water mixing cavity; one end of the water outlet inner pipe is integrally arranged on the connecting base and is communicated with the water mixing cavity; one end of the water inlet outer pipe is integrally arranged at the connecting base part and sleeved outside the water outlet inner pipe, the water inlet outer pipe, the water outlet inner pipe and the connecting base part are enclosed to form a water inlet channel, and a second water inlet communicated with the water inlet channel is formed in the water inlet outer pipe; the water mixing valve is installed on the connecting base and is arranged in the water mixing cavity. Therefore, the water pipe assembly is provided with the water inlet channel and the water outlet channel, so that holes in the shell and the inner container of the water heater can be reduced, the processing technology of the inner container can be simplified, the assembling process of the water heater can be simplified, and the production cost is reduced.

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.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective provides a water pipe assembly, aims at solving prior art, and inner bag manufacturing procedure is more loaded down with trivial details, and the more loaded down with trivial details technical problem of water heater assembling process.

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

the water mixing device comprises a connecting base part and a water mixing device, wherein the connecting base part is provided with a water mixing cavity, a water mixing water outlet communicated with the water mixing cavity and a first water inlet communicated with the water mixing cavity;

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

the water inlet outer pipe is sleeved outside the water outlet inner pipe, the water inlet outer pipe, the water outlet inner pipe and the connecting base are enclosed to form a water inlet channel, and a second water inlet communicated with the water inlet channel is formed in the water inlet outer pipe; and

and the water mixing valve is arranged on the connecting base and is arranged in the water mixing cavity.

Optionally, the mixing valve is a thermostatic valve.

Optionally, the water mixing valve comprises a regulator and a constant temperature regulating assembly, wherein the regulator is movably arranged in the water mixing cavity and is used for movably regulating the opening ratio of the water outlet inner pipe and the first water inlet; the constant temperature adjusting assembly is connected with the regulator and is used for driving the regulator to move by sensing the deviation amount of the water temperature in the water mixing cavity.

Optionally, the mixing valve further comprises an outer valve rod and an inner screw rod which are screwed with each other, the outer valve rod is rotatably installed in the water mixing cavity, the inner screw rod is movably installed in the water mixing cavity, and the inner screw rod is in fit connection with the thermostatic regulating assembly.

Optionally, the first water inlet is disposed at a side portion of the connection base, and the first water inlet and the second water inlet are located at the same side of the connection base.

Optionally, the water pipe assembly further includes an external water inlet pipe, the external water inlet pipe is disposed on one side of the connection base portion, the external water inlet pipe is provided with a first water inlet flow channel and a second water inlet flow channel extending in a roundabout or rotary mode, the first water inlet flow channel is communicated with the first water inlet, and the second water inlet flow channel is communicated with the second water inlet.

Optionally, the external water inlet pipe comprises a water pipe main body and a steering head, the water pipe main body is provided with a first branch flow channel and a plurality of second branch flow channels which extend along the length direction of the water pipe main body, one end of the water pipe main body is connected to the connecting base, the steering head is mounted at the other end of the water pipe main body, and the steering head is provided with a cold water inlet and a steering flow channel;

the cold water inlet is communicated with the first sub-flow passage to form the first water inlet flow passage; the cold water inlet is also communicated with one of the second branch flow passages, and the diversion flow passage is used for communicating the two second branch flow passages, so that water in one of the second branch flow passages is diverted to flow to the other second branch flow passage, and the second water inlet flow passage is formed.

Optionally, the water inlet outer pipe comprises an installation section connected with the connection base and a water delivery section connected with the installation section, and the wall thickness of the installation section is larger than that of the water delivery section.

Optionally, send water section be equipped with a plurality of water holes of sending of inlet channel intercommunication, water pipe assembly still includes the honeycomb duct, the honeycomb duct is located outside the outer pipe of intaking, the honeycomb duct corresponds send water section setting, be equipped with a plurality of water conservancy diversion holes on the honeycomb duct, the diameter or the equivalent diameter in water conservancy diversion hole are less than send the diameter or the equivalent diameter in water hole.

Optionally, the water pipe assembly further comprises a liner inner water outlet pipe and a connecting joint, the upper end of the water feeding section and the upper end of the water outlet inner pipe are connected to one end of the connecting joint, the lower end of the liner inner water outlet pipe is connected to the other end of the connecting joint, and the connecting joint is provided with a water passing channel for communicating the water outlet inner pipe and the liner inner water outlet pipe.

Optionally, the water pipe assembly further comprises a liner inner water inlet pipe and a liner inner water outlet pipe, the liner inner water outlet pipe is connected with the water outlet inner pipe, the liner inner water inlet pipe is connected with the water inlet outer pipe, the liner inner water inlet pipe is arranged outside the liner inner water outlet pipe, and a liner inner water feeding channel communicated with the water inlet channel is formed between the liner inner water inlet pipe and the liner inner water outlet pipe.

Optionally, the water pipe assembly still includes the adapter, the adapter is located outside the outer pipe of intaking, the adapter include with intake outer tube sealing connection's first changeover portion, and connect in the second changeover portion of first changeover portion one end, the internal surface of second changeover portion is equipped with the internal thread to be used for with water pipe head sealing connection on the inner bag.

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

the water pipe assembly is arranged at the water inlet and the water outlet.

In the utility model, one end of the water outlet inner pipe and one end of the water inlet outer pipe are both arranged on the connecting base part, so that a water inlet channel is formed among the water inlet outer pipe, the water outlet inner pipe and the connecting base part, and external water can be fed into the inner container through the water inlet channel; meanwhile, the connecting base is provided with a water mixing cavity and a first water inlet communicated with the water mixing cavity, the water outlet inner pipe is communicated with the water mixing cavity, external water can enter the water mixing cavity through the first water inlet, hot water in the liner flows into the water mixing cavity through the water outlet inner pipe to be mixed in the water mixing cavity, and the mixed water can be delivered to a water using end (such as a shower head or a water faucet and the like) of the water heater through the water mixing water outlet. The water mixing valve can adjust the proportion of cold water entering the water mixing cavity through the first water inlet and hot water flowing into the water mixing cavity through the water outlet inner pipe so as to control the temperature of mixed water sent to the water using end.

The water pipe assembly is provided with a water inlet channel for supplying water into the inner container and a water outlet channel for discharging the water in the inner container, so that holes can be reduced on the shell and the inner container of the water heater, and only one water pipe connector needs to be welded on the inner container, so that the processing technology of the inner container can be simplified, the assembly process of the water heater 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 and one end of the water inlet outer pipe are integrally arranged on the connecting base, 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.

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 structural view of the water tube assembly of FIG. 1;

FIG. 3 is an exploded view of the water tube assembly of FIG. 2;

FIG. 4 is a schematic cross-sectional view of the water tube assembly of FIG. 2;

FIG. 5 is a partial schematic view of the mixing valve of FIG. 4;

FIG. 6 is a schematic view of the adjuster of FIG. 5;

FIG. 7 is a schematic view of the adjuster of FIG. 6;

fig. 8 is a schematic waterway view of the hose assembly of fig. 2.

The reference numbers illustrate:

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, wherein, the water heater can select for electric water heater or steam water heater.

In an embodiment of the present invention, as shown in fig. 1, 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 to 3, the water inlet is a water outlet, the water pipe assembly 100 includes a connection water pipe 10 and a water mixing valve 90, 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 out of the inner container 200, and the water inlet and outlet is connected to the water inlet and outlet.

Further, as shown in fig. 2 to 5, the connection water pipe 10 includes a connection base 11, an inner water outlet pipe 12, and an outer water inlet pipe 13.

As shown in fig. 2 to 5, the connection base 11 has a water mixing chamber 111, a mixed water outlet 112 communicating with the water mixing chamber 111, and a first water inlet communicating with the water mixing chamber 111.

As shown in fig. 2 to 5, one end of the water outlet inner tube 12 is integrally disposed on the connection base 11 and is communicated with the water mixing chamber 111. The water mixing cavity 111, the inner channel of the inner water outlet pipe 12, the mixed water outlet 112, and the like form a water outlet channel.

As shown in fig. 2-5, one end of the outer water inlet pipe 13 is integrally disposed at the connection base 11, the outer water inlet pipe 13 is sleeved outside the inner water outlet pipe 12, the outer water inlet pipe 13, the inner water outlet pipe 12 and the connection base 11 enclose to form a water inlet channel 14, and the outer water inlet pipe 13 is provided with a second water inlet communicated with the water inlet channel 14.

Alternatively, the outlet inner pipe 12 and the water supply outer pipe may be straight pipes extending in the up-down direction.

The outer tube wall surface of the water outlet inner tube 12 is used for forming the inner wall surface of the water inlet channel 14, the inner tube wall surface of the water inlet outer tube 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 tube 12 and the water inlet outer tube 13 so as to form the water inlet channel 14 in a surrounding manner.

Further, as shown in fig. 2 to 5, the mixing valve 90 is mounted on the connection base 11 and is disposed in the mixing chamber 111.

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 first water inlet and the second water inlet are located outside the inner container 200. As shown in fig. 8, the external water supply can enter the water inlet channel 14 from the second water inlet 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 one end (i.e. the upper end) of the inner container 200 extending into the inner water outlet pipe 12, and flow into the water mixing cavity 111 through the inner water outlet pipe 12, and can enter the water mixing cavity 111 from the first water inlet, and meanwhile, the external water supply can enter the water mixing cavity 111 from the first water inlet, so as to be mixed with the hot water flowing into the water mixing cavity 111 through the inner water outlet pipe 12, and the mixed water can be sent to the water using end (such as a shower head or a water faucet and the like) of the water heater 1000 through the water mixing water outlet 112.

The mixing valve 90 is disposed in the water mixing cavity 111 to adjust a ratio of cold water entering the water mixing cavity 111 through the first water inlet to hot water flowing into the water mixing cavity 111 through the water outlet inner tube 12, so as to form mixed water.

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 connection base 11 has a water mixing cavity 111 and a first water inlet communicated with the water mixing cavity 111, and the water mixing cavity 111 of the inner water outlet pipe 12 is communicated, so that external water can enter the water mixing cavity 111 through the first water inlet, hot water in the inner container 200 flows into the water mixing cavity 111 through the inner water outlet pipe 12 to be mixed in the water mixing cavity 111, and the mixed water can be delivered to a water using end (such as a shower head or a faucet head) of the water heater 1000 through the water mixing water outlet 112. The mixing valve 90 can adjust the ratio of the cold water entering the water mixing cavity 111 through the first water inlet to the hot water entering the water mixing cavity 111 through the water outlet inner tube 12, so as to control the temperature of the mixed water sent to the water using end.

That is, the water pipe assembly 100 has both the water inlet channel 14 for supplying water into the inner container 200 and the water outlet channel for supplying water out of the inner container 200, so that holes can be reduced on the outer shell of the water heater 1000 and the inner container 200, and only one water pipe connector needs to be welded on the inner container 200, thereby simplifying the processing technology of the inner container 200, simplifying the assembly process of the water heater 1000, and reducing the production cost; 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.

Further, the mixing valve 90 is a thermostatic valve.

In application, the water mixing valve 90 in the embodiment of the present invention may be a common water mixing valve 90, an electric thermostatic valve, or a mechanical thermostatic valve, etc., and the following description will take the water mixing valve 90 as the mechanical thermostatic valve as an example.

Thus, by making the mixing valve 90 a thermostatic valve, it is possible to supply the water using end with the constant temperature of the mixed water.

Further, as shown in fig. 2 to 5, the connection base 11 further has a mounting opening 113 communicating with the water mixing chamber 111, and the water mixing valve 90 is mounted to the water mixing chamber 111 through the mounting opening 113.

Specifically, the mounting port 113 is disposed at a side portion of the connection base 11, the mixed water outlet 112 is disposed at a side portion of the connection base 11, and the mixed water outlet 112 and the mounting port 113 are respectively located at two opposite sides of the connection base 11.

Further, as shown in fig. 2 to 7, the mixing valve 90 includes a regulator 91 and a thermostatic regulating assembly 92, wherein the regulator 91 is movably disposed in the water mixing cavity 111 for movably regulating the opening ratio of the outlet inner pipe 12 to the first water inlet; the thermostat assembly 92 is connected to the regulator 91 and is used to drive the regulator 91 to move by sensing the deviation amount of the water temperature in the water mixing chamber 111.

When the water heater 1000 with the water pipe assembly 100 is used, a user can adjust a preset water temperature according to actual needs, during subsequent use, the real-time water temperature in the water mixing cavity 111 may deviate from the preset water temperature, and the constant temperature adjusting assembly 92 can continuously sense the deviation of the water temperature and drive the regulator 91 to generate displacement according to the deviation of the water temperature, so as to correspondingly adjust the opening ratio of the water outlet inner pipe 12 to the first water inlet, so that the deviation of the water temperature can be compensated in time, and the preset water temperature sent by the water mixing water outlet 112 can be always kept constant.

For example, when the real-time water temperature in the water mixing cavity 111 is higher than the preset water temperature, the thermostatic regulating assembly 92 instantaneously drives the regulator 91 to displace to enlarge the opening degree of the first water inlet, or reduce the opening degree of the water outlet inner tube 12 while enlarging the opening degree of the first water inlet, so as to increase the proportion of the cold water flowing into the water mixing cavity 111, thereby reducing the real-time water temperature to the preset water temperature, and obtaining the effect of constant water temperature.

Therefore, the utility model discloses in, the thermostatic control process need not the manual participation of user, consequently to any user group, homoenergetic facilitates the use, has higher convenience and commonality promptly. In addition, it should be noted that the mixing valve 90 is a pure mechanical structure, and compared with the existing electronic thermostatic control device, the mixing valve can stably operate for a long time without depending on electric power, so that the mixing valve has high reliability and relatively low cost. Moreover, because this mix water valve 90 can realize the constant temperature and go out water, and combine above-mentioned advantage, can promote user's use greatly and experience.

Further, as shown in fig. 2-5, the thermostatic regulation assembly 92 includes a temperature sensing shell 923, a temperature sensing medium 921 for sensing the change of the water temperature and the volume correspondingly changes, and a thermostatic control rod 922 extending along the movable direction of the regulator 91, the temperature sensing shell 923 is fixedly connected to the regulator 91, the thermostatic control rod 922 is slidably mounted on the temperature sensing shell 923, and the outer end of the thermostatic control rod 922 is matched with a limit structure limited in the water mixing cavity 111.

The temperature sensing medium 921 is disposed in the temperature sensing shell 923, and the temperature sensing medium 921 is configured to expand when the temperature of the water in the water mixing chamber 111 rises, so as to extend the thermostatic control rod 922, so as to drive the temperature sensing shell 923 and the regulator 91 to move; the temperature sensing medium 921 is also used for contracting when the temperature of the water in the water mixing cavity 111 is cooled so as to enable the thermostatic control rod 922 to retract, so that the temperature sensing shell 923 and the regulator 91 can move in the opposite direction; therefore, the regulator 91 can be driven to move according to the real-time water temperature change in the water mixing cavity 111, so as to correspondingly regulate the opening ratio of the water outlet inner pipe 12 and the first water inlet, and the water temperature of the mixed water sent out from the mixed water outlet 112 is constant.

Wherein, the thermostatic regulation subassembly 92 is the temperature sensing package subassembly, and the temperature sensing medium 921 in temperature sensing shell 923 and the temperature sensing shell 923 forms the temperature sensing package promptly to constitute the temperature package subassembly jointly with thermostatic control pole 922 etc..

Specifically, as shown in fig. 2 to 5, the thermostatic regulating assembly 92 includes an elastic reset piece 924 (e.g., a reset spring or a reset elastic sheet, etc.), and the elastic reset piece 924 is configured to make the temperature sensing shell 923 have a tendency to move toward a direction close to the limiting structure in the water mixing chamber 111.

It should be noted that, in other embodiments, the above constant temperature adjusting assembly 92 may be reversely disposed, that is, the outer end of the constant temperature control rod 922 is fixedly connected to the adjuster 91, and the temperature sensing shell 923 is limited in the limit structure in the water mixing cavity 111 in a matching manner, so that the adjuster 91 is driven to move according to the real-time water temperature change in the water mixing cavity 111.

Of course, in other embodiments, the thermostatic regulating assembly 92 may be configured in other structural forms, for example, the thermostatic regulating assembly 92 may include a temperature sensing seat, a temperature sensing elastic sheet (such as a memory alloy, etc.) arranged on the temperature sensing seat, an elastic resetting member 924, and a thermostatic control rod 922, so that the thermostatic control rod 922 extends by being deformed by the temperature sensing elastic sheet when the temperature changes, and the thermostatic control rod 922 retracts by the elastic resetting member 924; and so on.

Further, as shown in fig. 2 to 5, the mixing valve 90 further includes a driving assembly 93 for driving the thermostatic regulating assembly 92 and the regulator 91 to integrally move.

Specifically, during use/operation, the driving assembly 93 may drive the thermostat regulating assembly 92 and the regulator 91 to integrally move so as to regulate the preset opening degree of the regulator 91, thereby obtaining the required preset water temperature.

Further, as shown in fig. 2 to 5, the driving assembly 93 includes an outer valve stem 931 and an inner screw 932 which are threaded with each other, the outer valve stem 931 is rotatably installed in the water mixing chamber 111, the inner screw 932 is movably installed in the water mixing chamber 111, and the inner screw 932 is cooperatively connected with the thermostatic regulating assembly 92.

Specifically, the inner screw 932 is capable of moving in the movable direction of the adjuster 91 under the driving of the rotation of the outer valve stem 931, so that the driving is in fit connection with the inner screw 932 to drive the movement of the thermostatic adjusting assembly 92 to drive the movement of the adjuster 91.

Further, as shown in fig. 2 to 5, the driving assembly 93 further includes an elastic buffer 933 (such as a buffer spring, a buffer elastic sheet, or an elastic buffer block), a movable limiting piece 934 and a fixed limiting piece 935, the inner screw 932 has a buffer slot, the elastic buffer 933 and the movable limiting piece 934 are disposed in the buffer slot, and the elastic buffer 933 has a tendency of moving the movable limiting piece 934 in a direction of separating from the buffer slot; fixed locating part 935 install in the notch department of dashpot to it is spacing activity locating part 934 breaks away from the dashpot, fixed locating part 935 has spacing via hole, constant temperature adjusting part 92 passes through spacing via hole butt in activity locating part 934.

Specifically, the outer end of the thermostatic control rod 922 is abutted to the movable limiting part 934 through the limiting via hole.

Optionally, as shown in fig. 2-5, the position-limiting member 934 has an abutting groove, and the outer end of the thermostatic control rod 922 abuts against the bottom of the abutting groove.

Optionally, the fixed limiting member 935 is connected to the notch of the buffer slot by a threaded connection structure.

Of course, in other embodiments, the thermostatic adjustment assembly 92 may be directly connected (e.g., abutted) to the inner screw 932.

Further, as shown in fig. 2 to 5, the mixing valve 90 further includes a valve cover 94, the valve cover 94 is installed at the installation opening 113, an installation hole is formed in the valve cover 94, and the outer valve rod 931 is rotatably installed in the installation hole.

In particular, the drive assembly 93 may further include a hand wheel fixedly connected to the outer valve stem 931. Namely, the user can manually adjust the required preset water temperature by rotating the hand wheel. Of course, the electric control structure may be provided to drive the outer valve rod 931 to pivot horizontally, so as to save the manual temperature adjustment operation of the user.

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

Further, as shown in fig. 2-5, the inner water outlet pipe 12 and the outer water inlet pipe 13 are spaced apart from each other to form a water inlet channel 14 between the inner water outlet pipe 12 and the outer water inlet pipe 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.

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 arranged at the upper end of the water outlet inner pipe 12 in a split mode, 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. 2 to 5, 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. 2 to 5, the water pipe assembly 100 further includes a connection joint 30, the upper ends (i.e., the ends far away from the connection base 11) of the water outlet inner pipe 12 and the water inlet outer pipe 13 are both connected to one end of the connection joint 30, the lower end (i.e., the end facing the connection base 11) of the liner inner water outlet pipe 20 is connected to the other end of the connection joint 30, and the connection joint 30 has a water passing channel 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 pipe 12 is hermetically connected in the water passing channel, so that the water outlet inner pipe 12 is communicated with the water passing channel; the lower end of the water inlet outer pipe 13 is hermetically connected in the water passing channel, so that the water inlet outer pipe 13 is communicated with the water passing channel. Therefore, the water outlet inner pipe 12 and the liner inner water outlet pipe 20 can be communicated through the water passing channel.

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. 2 to 5, the water inlet outer tube 13 includes a mounting section 133 connected to the connection base 11, and a water delivery section 134 connected to the mounting section 133, wherein the wall thickness of the mounting 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. 2 to 5, the water pipe assembly 100 further includes a flow guide pipe 40, the flow guide pipe 40 is disposed outside the water inlet outer pipe 13, the flow guide pipe 40 is disposed corresponding to the water supply section 134, the flow guide pipe 40 is provided with a plurality of flow guide holes 41, and a diameter or an equivalent diameter of the flow guide holes 41 is smaller than a diameter or an equivalent diameter of the water supply holes 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. 2-5, the wall thickness of the flow guiding tube 40 is smaller than that of the water feeding section 134.

Further, as shown in fig. 2 to 5, the connection joint 30 further has a receiving step located outside the connection ring groove, and the other end (i.e., the upper end) of the flow guide pipe 40 is mounted at the receiving step. Thus, the upper end of the flow guide tube 40 can be conveniently limited.

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. 2-5, the water pipe assembly 100 may further include a liner inner water inlet pipe 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 is connected to the water inlet outer pipe 13, the liner inner water inlet pipe 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 and the liner inner water outlet pipe 20.

In this embodiment, further, as shown in fig. 2-5, the wall thickness of the water inlet pipe in the liner is smaller than that of the water inlet outer pipe 13. Therefore, the cost of the water inlet pipe in the liner can be reduced.

In this embodiment, further, as shown in fig. 2-5, the water inlet pipe in the liner is provided with a plurality of water supply holes 132 communicated with the water supply channel.

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

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

In this embodiment, as shown in fig. 2-5, a connection ring protrusion is protruded from the outer tube wall surface of the liner inner water outlet tube 20, and the upper end of the liner inner water inlet tube is hermetically connected to the connection ring protrusion.

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

In this embodiment, as shown in fig. 2 to 5, the water pipe assembly 100 further includes a connecting sleeve, and the connecting sleeve is hermetically disposed outside the connection between the water inlet pipe in the liner and the water inlet outer pipe 13. So, through setting up the adapter sleeve, can improve the joint strength between courage inner water inlet tube and the outer tube 13 of intaking on the one hand, on the other hand also can be favorable to improving the connection leakproofness between the two.

In this embodiment, specifically, the connection sleeve may be welded to the inner liner of the water inlet pipe by means of hot-melt welding.

In this embodiment, specifically, as shown in fig. 2 to 5, a sealing ring is provided between the connection sleeve and the water inlet outer pipe 13.

Further, as shown in fig. 2 to 5, the first water inlet is provided at a side portion of the connection base 11, and the first water inlet and the second water inlet are located at the same side of the connection base 11.

As such, the external water supply may be conveniently provided to the water pipe assembly 100.

Further, as shown in fig. 2 to 5, the water pipe assembly 100 further includes an external water inlet pipe 80, the external water inlet pipe 80 is disposed at one side of the connection base portion 11, the external water inlet pipe 80 has a first water inlet flow channel and a second water inlet flow channel extending in a winding or rotating manner, the first water inlet flow channel is communicated with the first water inlet, and the second water inlet flow channel is communicated with the second water inlet.

Thus, the external water supply may enter the water mixing chamber 111 through the first water inlet flow passage and enter the water inlet passage 14 through the second water inlet flow passage.

Thus, by making the second water inlet flow channel extend in a circuitous way or in a rotary way, the water resistor can be formed outside the liner 200, and the water inlet electricity-proof wall structure can be formed outside the liner 200, so that on one hand, the water inlet electricity-proof wall structure can be prevented from being arranged in the liner 200, and the space in the liner can be saved; 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.

Furthermore, by providing the external water inlet pipe 80 at one side of the connection base 11, the overall structural form of the water pipe assembly 100 can be easily identical or similar to the prior art in which the water inlet pipe and the water outlet pipe are separately provided, so that the prior common components can be easily used to reduce the production cost.

Further, as shown in fig. 2 to 5, the external water inlet pipe 80 includes a water pipe main body 82 and a diversion head 83, the water pipe main body 82 has a first branch flow passage 821 and a plurality of second branch flow passages which both extend along the length direction of the water pipe main body 82, one end of the water pipe main body 82 is connected to the connection base 11, the diversion head 83 is mounted at the other end of the water pipe main body 82, the diversion head 83 is provided with a cold water inlet 831 and a diversion flow passage, and the cold water inlet 831 is communicated with the first branch flow passage 821 to form a first water inlet flow passage; the cold water inlet 831 is also communicated with one of the second branch flow passages, and the diversion flow passage is used for communicating the two second branch flow passages, so that water in one of the second branch flow passages is diverted to flow to the other second branch flow passage, and a second water inlet flow passage is formed.

In this way, the degree of manufacture can be reduced by dividing the external water inlet pipe 80 into the water pipe main body 82 and the steering head 83.

Specifically, as shown in fig. 2 to 5, the water pipe main body 82 includes a first branch pipe body and a plurality of second branch pipe bodies, and each of the second branch pipe bodies is provided with a second branch flow passage.

Optionally, the first branch pipe body is integrally connected with the plurality of second branch pipe bodies. Thus, the assembly process can be simplified.

In specific implementation, the number of the second branch flow passages can be 3, 5, 7 or the like.

In this embodiment, as shown in fig. 2 to 5, there are 3 second sub-runners, which are respectively a first runner 822a, a second runner 822b and a third runner 822c, the first runner 822a is communicated with the cold water inlet 831, and there is one turning runner, which is communicated with the second runner 822b and the third runner 822 c; the other end of the first flow channel 822a communicates with the other end of the second flow channel 822 b.

It can be understood that when the number of the second branch runners is increased, the diversion runners are correspondingly increased.

Further, as shown in fig. 2 to 5, 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 first water inlet channel 1371 communicating the first water inlet with the first sub-channel 821, a second water inlet channel 1372 communicating the second water inlet with the third channel 822c, and a diversion channel 1373 communicating the other end of the first channel 822a with the other end of the second channel 822 b.

In addition, in other embodiments, the external water inlet pipe 80 may be configured in other structural forms, for example, the external water inlet pipe 80 may include a water pipe main body 82, a cold water head, and a diversion head 83, the water pipe main body 82 has a first branch flow passage 821 and a plurality of second branch flow passages both extending along the length direction of the water pipe main body 82, one end of the water pipe main body 82 is connected to the connection base 11, the diversion head 83 is mounted at the other end of the water pipe main body 82, the cold water head is provided with a cold water inlet 831, the diversion head 83 is provided with a cold water inlet 831, the cold water inlet 831 is communicated with the first branch flow passage 821 to form the first water inlet flow passage, the cold water inlet 831 is further communicated with one of the second branch flow passages, and the diversion flow passage is used for communicating two of the second branch flow passages to divert water in one of the second branch flow passages to flow passages, for forming the second water inlet flow passage; at this time, the number of the second branch runners is greater than or equal to 2.

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. 2-5, 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 to 5, the auxiliary fixing foot 85 is located at an end of the external water inlet pipe 80 far from the connecting water pipe 10.

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

In the present embodiment, as shown in fig. 2 to 5, the auxiliary fixing leg 85 is provided on the steering head 83.

Further, the auxiliary fixing leg 85 is provided integrally with the steering head 83. 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.

Further, as shown in fig. 2-5, screw through holes (not shown) are formed 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 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 with the water pipe joint 210, so that the connection water pipe 10 is fixed to the inner container 200.

Further, as shown in fig. 2 to 5, the water pipe assembly 100 further includes an adapter 60, the adapter 60 is disposed outside the water inlet outer pipe 13, the adapter 60 includes a first adapter section 61 connected to the water inlet outer pipe 13 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 on the inner container 200 in a sealing manner.

Specifically, the adapter 60 is disposed outside the mounting section 133.

Specifically, the inner surface of the second switching section 62 is provided with an internal thread, the outer circumferential surface of the water pipe joint 210 is provided with an external thread, and during assembly, the second switching section 62 and the water pipe joint 210 are in threaded connection by rotating the adapter 60, so that the adapter 60 is fixed on the inner container 200.

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 above ℃. 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 5, the mounting section 133 includes a first section and a second section that are connected to each other, an outer diameter or an equivalent outer diameter of the first section is greater than an outer diameter or an equivalent outer diameter of the second section, a mounting step surface is formed at a connection portion of the first section and the second section, a limiting inner protrusion 63 is provided on an inner surface of a connection portion of the first adapter section 61 and the second adapter section 62, and the limiting inner protrusion 63 is provided on the mounting step surface.

Optionally, the inner limit projection 63 is annular.

Optionally, the liner inner water outlet pipe 20 includes a metal outer pipe and a plastic inner pipe disposed inside the metal outer pipe.

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 hose assembly, comprising:

the water mixing device comprises a connecting base part and a water mixing device, wherein the connecting base part is provided with a water mixing cavity, a water mixing water outlet communicated with the water mixing cavity and a first water inlet communicated with the water mixing cavity;

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

the water inlet outer pipe is sleeved outside the water outlet inner pipe, the water inlet outer pipe, the water outlet inner pipe and the connecting base are enclosed to form a water inlet channel, and a second water inlet communicated with the water inlet channel is formed in the water inlet outer pipe; and

and the water mixing valve is arranged on the connecting base and is arranged in the water mixing cavity.

2. The water tube assembly of claim 1, wherein the mixing valve is a thermostatic valve.

3. The water pipe assembly according to claim 2, wherein the water mixing valve comprises a regulator and a thermostatic regulating assembly, the regulator is movably arranged in the water mixing cavity and is used for movably regulating the opening ratio of the water outlet inner pipe and the first water inlet; the constant temperature adjusting assembly is connected with the regulator and is used for driving the regulator to move by sensing the deviation amount of the water temperature in the water mixing cavity.

4. The water tube assembly of claim 3 wherein the mixing valve further comprises an outer stem and an inner stem in threaded engagement with each other, the outer stem being rotatably mounted to the mixing chamber, the inner stem being movably mounted within the mixing chamber, and the inner stem being cooperatively engaged with the thermostatic control assembly.

5. The water tube assembly of any one of claims 1 to 4, wherein the first water inlet is provided at a side portion of the connection base, and the first water inlet and the second water inlet are located at a same side of the connection base.

6. The water tube assembly of claim 5, further comprising an external water inlet tube disposed on one side of the connection base, the external water inlet tube having a first water inlet flow passage and a second water inlet flow passage extending in a circuitous or rotational manner, the first water inlet flow passage communicating with the first water inlet and the second water inlet flow passage communicating with the second water inlet.

7. The water tube assembly as claimed in claim 6, wherein the external inlet tube comprises a water tube body having a first branch flow passage and a plurality of second branch flow passages each extending along a length direction of the water tube body, one end of the water tube body being connected to the connection base, and a steering head mounted to the other end of the water tube body, the steering head having a cold water inlet and a steering flow passage;

the cold water inlet is communicated with the first sub-flow passage to form the first water inlet flow passage; the cold water inlet is also communicated with one of the second branch flow passages, and the diversion flow passage is used for communicating the two second branch flow passages, so that water in one of the second branch flow passages is diverted to flow to the other second branch flow passage, and the second water inlet flow passage is formed.

8. The water hose assembly according to any one of claims 1 to 4, wherein the water inlet outer tube comprises a mounting section connected to the connection base and a water delivery section connected to the mounting section, and the wall thickness of the mounting section is greater than that of the water delivery section.

9. The water pipe assembly of claim 8, wherein the water supply section is provided with a plurality of water supply holes communicated with the water inlet channel, the water pipe assembly further comprises a guide pipe, the guide pipe is arranged outside the water inlet outer pipe, the guide pipe is arranged corresponding to the water supply section, the guide pipe is provided with a plurality of guide holes, and the diameter or equivalent diameter of each guide hole is smaller than that of the water supply hole.

10. The water pipe assembly according to claim 8, further comprising a liner inner water outlet pipe and a connector, wherein the upper end of the water supply section and the upper end of the water outlet inner pipe are both connected to one end of the connector, the lower end of the liner inner water outlet pipe is connected to the other end of the connector, and the connector is provided with a water passing channel for communicating the water outlet inner pipe and the liner inner water outlet pipe.

11. The water pipe assembly according to any one of claims 1 to 4, further comprising a liner inner water inlet pipe and a liner inner water outlet pipe, wherein the liner inner water outlet pipe is connected with the water outlet inner pipe, the liner inner water inlet pipe is connected with the water inlet outer pipe, the liner inner water inlet pipe is arranged outside the liner inner water outlet pipe, and a liner inner water feeding channel communicated with the water inlet channel is formed between the liner inner water inlet pipe and the liner inner water outlet pipe.

12. The water pipe assembly according to any one of claims 1 to 4, further comprising an adapter, wherein the adapter is disposed outside the water inlet outer pipe, the adapter comprises a first adapter section hermetically connected with the water inlet outer pipe and a second adapter section connected to one end of the first adapter section, and an inner surface of the second adapter section is provided with an internal thread for hermetically connecting with the water pipe connector on the inner liner.

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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