WO2018001233A1

WO2018001233A1 - Outlet pipe

Info

Publication number: WO2018001233A1
Application number: PCT/CN2017/090254
Authority: WO
Inventors: 程建建; 敖凯平; 王�华
Original assignee: 艾欧史密斯(中国)热水器有限公司
Priority date: 2016-06-27
Filing date: 2017-06-27
Publication date: 2018-01-04
Also published as: CN205689881U

Abstract

Provided is water outlet pipe for installation in a liner (1) of a water heater, comprising: a pipe body (10) having a first end (10A) and a second end (10B) opposed to each other, the first end being connectable to the liner and the second end being extendable into the liner; a first inlet (101) disposed on the pipe body near the first end and a second inlet (102) disposed on the pipe body near the second end; an adjustment member (20) movably provided on the pipe body; a heat-sensitive element (30) provided on a pipe body, the heat-sensitive element being capable of driving the adjustment member at a predetermined temperature, so as to regulate the flow of water entering the pipe body through the first inlet and/or the second inlet; a resetting member (40) provided on the pipe body, the resetting member being capable of applying a force to the regulating member to reset the adjusting member; and a spacer (50) provided on the pipe body, the spacer at least partially shielding the resetting member, so as to at least partially isolate the resetting member and the water located near the resetting member. The outlet pipe can effectively prevent the fouling of the resetting member.

Description

Outlet pipe

Cross reference related reference

The present application claims the benefit of priority to the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the disclosure.

Technical field

The present application relates to water treatment equipment, and more particularly to an outlet pipe for use in a water heater liner.

Background technique

In order to improve the user's water experience, the outlet pipe of the existing water heater can adjust the opening degree of the hot water inlet and/or the cold water inlet according to the temperature of the water, so that the hot and cold water in the water heater is mixed into the outlet pipe to obtain the temperature. More suitable warm water and output for users to use.

In order to achieve the above object, the prior art generally provides a heat sensitive element capable of sensing the water temperature on the water outlet pipe, and the heat sensitive element can be expanded and contracted with changes in temperature. Specifically, the temperature element can be elongated for temperature rise, and the temperature reduction of the heat sensitive element can be shortened. The expansion and contraction of the thermosensitive element can drive the associated components to move on the water outlet pipe, thereby controlling the opening degree of the hot water inlet and/or the cold water inlet.

Since the thermal element usually has a distance shorter than the natural elongation distance under the same temperature difference, the thermal element is displaced as the working time is extended, and the reset is not well completed, which affects the control of the inlet opening. To this end, the Chinese Utility Model Patent No. CN204478494U provides an outlet pipe assembly, which can be accurately reset by providing an elastic reset element on the pipe body that can apply a restoring force to the blocking member.

Summary of the invention

The inventor of the present application found in the prior art that since the elastic returning element is in direct contact with the hot water, the elastic reset element is prone to scale formation, thereby affecting the expansion and contraction performance, thereby affecting the control of the effluent water temperature; When the component is placed in the tube body, the elastic reset element also increases the resistance of the water flow in the tube body, resulting in unsmooth water flow.

An object of embodiments of the present application is to provide an outlet pipe to solve at least one of the above problems.

To achieve the above objective, the embodiments of the present application provide the following technical solutions.

An outlet pipe for installation in a tank of a water heater, comprising:

a tubular body having opposite first and second ends, the first end being connectable to the inner tank, and the second end being extendable into the inner casing;

a first water inlet disposed on the tubular body adjacent to the first end and a second water inlet adjacent to the second end;

An adjusting member, the adjusting member is movably disposed on the pipe body;

a heat sensitive element disposed on the tube body, the heat sensitive element being capable of driving the adjustment member to move at a predetermined temperature to adjust access to the first water inlet and/or the second water inlet The flow of water in the pipe;

a reset member disposed on the tube body, the reset member being capable of applying a force to the adjusting member to reset the adjusting member;

A spacer disposed on the tubular body, the spacer at least partially obscuring the reset member to at least partially isolate the reset member and water located adjacent the reset member.

Preferably, an accommodating chamber is formed between the spacer and the wall of the tubular body, and the resetting member is at least partially disposed in the accommodating chamber.

Preferably, the adjusting member is inserted into the accommodating chamber near an end of the accommodating chamber.

Preferably, the wall adjacent to the accommodating chamber portion is in sealing contact with the inner wall of the accommodating chamber within the movable range of the adjusting member to seal the accommodating chamber.

Preferably, the tubular body includes a first portion and a second portion that are joined, and the spacer is coupled to the second portion and extends into the first portion.

Preferably, the second portion includes a connecting portion and an extending portion, the connecting portion being coupled to the first portion, the protruding portion extending into the first portion to form the spacer.

Preferably, a shoulder is formed between the extending portion and the connecting portion, and the resetting member is disposed between the shoulder and the adjusting member.

Preferably, an end portion of the protruding portion extending into the first portion is located in the adjusting member, and a portion of the protruding portion located in the adjusting member is provided with a circulation portion, and the circulation portion communicates with the first portion Part and the second part of the water flow channel.

Preferably, the circulation portion includes at least one first through hole, and the at least one first through hole is disposed on a side wall of the extending portion.

Preferably, the adjusting member has a first working position and a second working position; when the adjusting member is in the first working position, the adjusting member blocks the first water inlet; the adjusting member is in the second working In the position, the adjusting member at least partially opens the first water inlet, and can adjust a flow rate of water entering the pipe body through the first water inlet and the second water inlet.

Preferably, the adjusting member has a tapered structure, the tapered structure is located upstream of the first water inlet in a water flow direction; and the tapered structure is formed between a side wall and the side wall provided with the flow portion a gap in which the water supply flows; the size of the gap decreases as the adjustment member moves from the first working position to the second working position.

Preferably, the water outlet pipe further includes an inclined surface drainage member, the drainage member is disposed at an end of the protruding portion in the adjusting member or the adjusting member; the drainage member can guide the guiding member The water in the first portion flows to the second portion.

Preferably, the spacer is cylindrical, and the tubular spacer is disposed inside the tube body or outside the tube; one end of the spacer away from the adjusting member is connected to the wall of the tube body.

Preferably, the water outlet pipe further includes a presetting mechanism disposed on the pipe body, and the presetting mechanism can adjust an initial compression amount of the resetting member.

Preferably, the presetting mechanism comprises:

a plurality of presetting portions disposed on the side wall of the first portion, the presetting portion having a stopping surface facing the first end, the plurality of stopping surfaces being different in distance from the first end ;

At least one stop disposed on the outer wall of the second portion, the at least one stop being switchable in the plurality of pre-adjusting portions and secured to a stop surface of one of the pre-adjusting portions.

Preferably, the presetting mechanism comprises:

An internal thread disposed on an inner wall of the first portion;

An external thread disposed on the outer wall of the second portion, the external thread being adapted and coupled to the internal thread; the external thread and the internal thread having a screwing length adjustable.

Preferably, the first end is connected to a bottom wall of the inner casing; the first water inlet is capable of allowing water in a lower portion of the inner tank to enter the tubular body, and the second water inlet is capable of being Water from the upper part of the bladder enters the tube.

Preferably, the first end is connected to a top wall of the inner casing; the first water inlet is capable of allowing water in an upper portion of the inner tank to enter the tubular body, and the second water inlet is capable of being Water in the lower part of the liner enters the tube.

With the above technical solution, the present application can at least partially isolate the reset member from the water flowing near the reset member by providing a spacer on the tube body that at least partially blocks the reset member, thereby reducing or even avoiding the reset member and the water. The contact can effectively prevent scaling of the reset member. In this way, the reset member can maintain better expansion and contraction performance for a long time, and the control of the outlet water temperature of the outlet pipe of the embodiment of the present application is improved.

In addition, since the spacers at least partially isolate the reset member from the water, the blocking effect of the reset member on the water flow can be reduced or even eliminated, thereby making the water flow more fluent.

DRAWINGS

The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. In addition, the shapes, proportions, and the like of the components in the drawings are merely illustrative and are used to help the understanding of the present application, and do not specifically limit the shapes and proportions of the components of the present application. Those skilled in the art, in the teachings of the present application, can implement the present application by selecting various possible shapes and ratios depending on the particular circumstances. In the drawing:

1 is a schematic view showing the assembly of an outlet pipe and a water heater liner according to an embodiment of the present application;

2 is a schematic structural view of an outlet pipe according to an embodiment of the present application,

FIG. 3 is a schematic view showing the assembly of the water outlet pipe and the water heater liner according to another embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or the element may be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention applies, unless otherwise defined. The terminology used herein is for the purpose of describing particular embodiments, and is not intended to be limiting. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

FIG. 1 is a schematic view showing the assembly of an outlet pipe and a water heater liner according to an embodiment of the present application. Referring to FIG. 1 , an outlet pipe of an embodiment of the present application is installed in a tank 1 of a water heater, and includes: a pipe body 10 having a first end 10A and a second end 10B opposite to each other, first The end 10A can be connected to the inner liner 1 and the second end 10B can be inserted into the inner liner 1.

FIG. 2 is a schematic structural view of an outlet pipe according to an embodiment of the present application. As shown in FIG. 1 and FIG. 2, the outlet pipe further includes a first water inlet 101 disposed on the pipe body 10 near the first end 10A and a second water inlet port 102 near the second end 10B; the adjusting member 20, the adjusting member 20 The movable body is disposed on the pipe body 10; the heat-sensitive element 30 is disposed on the pipe body 10, and the heat-sensitive element 30 can drive the adjusting member 20 to move at a predetermined temperature to adjust the first water inlet 101 and/or the second water inlet. 102 the flow rate of water entering the pipe body 10; the reset member 40 disposed on the pipe body 10, the reset member 40 can apply a force to the adjustment member 20 to reset the adjustment member 20; a spacer 50 disposed on the tube body 10, the spacer member 50 at least partially blocking the reset member 40 to at least partially isolate the reset member 40 and located adjacent to the reset member 40 Water.

According to the technical solution provided by the above embodiment, by providing the spacer 50 at least partially blocking the reset member 40 on the pipe body 10, the reset member 40 and the water flowing through the vicinity of the reset member 40 can be at least partially isolated. The contact of the reset member 40 with water is reduced or even prevented, so that the reset member 40 can be effectively prevented from fouling. In this way, the resetting member 40 can maintain better stretching performance for a long time, and the optimal control of the outlet water temperature of the outlet pipe of the embodiment of the present application is improved.

In addition, since the spacer 40 at least partially isolates the reset member 20 from the water, the obstruction of the water flow by the reset member 20 can be reduced or even eliminated, thereby making the water flow more fluent.

In the present application, the heat sensitive element 30 and the reset member 40 can take any suitable existing configuration as desired. For example, the heat-sensitive element 30 may be a heat-sensitive spring made of a nickel-titanium alloy or a nickel-titanium-copper alloy, or may be a heat-sensitive polymer tube; the reset member 40 may have a return spring having a constant modulus of elasticity.

The spacer 50 may have a cylindrical shape, and its cross-sectional shape is preferably the same as that of the tube 10 to facilitate the arrangement of both. For example, the tubular body 10 and the spacer 50 are both circular in cross section, so that the sockets of the two can be realized. Moreover, depending on the size relationship of the radial dimension of the tube body 10 and the spacer 50, the cylindrical spacer 50 may be disposed in the tube body 10 or outside the tube body 10. The end of the spacer member 50 away from the adjusting member 20 is connected to the tube. On the wall of the body 10. Thus, the receiving chamber 12 can be formed between the spacer 20 and the wall of the tubular body 10. Corresponding to the foregoing description, when the cross section of the pipe body 10 and the spacer 50 are both circular, the accommodating chamber 12 formed is a ring cavity, and the reset member 40 can be at least partially disposed in the annular accommodating chamber 12. Thus, the reset member 40 and the water located near the reset member 40 can be at least partially isolated, so that the reset member 40 can be effectively prevented from fouling.

One end of the reset member 40 is fixed on the inner wall of the accommodating chamber 12, and the other end is fixed on the adjusting member 20. The reset member 40 can apply a one-way biasing action to the adjustment member 20, thereby causing the adjustment member 20 to have a tendency to reset. In a preferred embodiment, the end of the adjusting member 20 adjacent to the accommodating chamber 12 is inserted in the accommodating chamber 12. In this way, the reset member 40 is integrally pressed into the accommodating chamber 12, and the spacer 50 completely blocks the reset member 40, thereby isolating the reset member 40 and the water in the vicinity thereof, thereby further improving the effect of preventing scaling on the reset member 40. . Moreover, the end of the adjusting member 20 is inserted in the accommodating chamber 12, the adjusting member 20 can be restrained in the radial direction, and the movement of the adjusting member 20 can be guided, thereby preventing the adjusting member 20 from moving during the movement. It occurs when the other parts are stuck due to the radial turbulence and cannot move.

Further, in order to prevent water from entering the accommodating chamber 12, the wall of the adjusting member 20 near the accommodating chamber 12 is in sealing contact with the inner wall of the accommodating chamber 12 in the movable range of the adjusting member 20 to make the accommodating chamber Room 12 is sealed. Specifically, a sealing ring may be provided on the wall of the adjusting member 20 and/or the accommodating chamber 12 to achieve sealing of the accommodating chamber 12. in this way, The resetting member 40 disposed in the accommodating chamber 12 is isolated from the external water to avoid contact of the resetting member 40 with water, and the resetting member 40 can substantially achieve no scaling, thereby preferably protecting the reset member 40 to be long. Time maintains better scalability.

In the present application, the spacer 50 can be disposed within the tubular body 10 or outside of the tubular body 10 as a separate component. As described above, one end of the spacer 50 away from the adjusting member 20 is connected to the wall of the pipe body 10, and the spacer 50 may be fixedly connected to the wall of the pipe body 10 by welding; or may be the spacer 50 such as The threaded connection is detachably attached to the wall of the tubular body 10.

Referring to FIG. 2, another embodiment in which the spacer 50 is disposed as a separate component in the tubular body 10 is that the tubular body 10 includes the first portion 103 and the second portion 104 that are connected, the spacer 50 and the second portion. 104 is connected and extends into the first portion 103. Specifically, the end of the second portion 104 projects into the first portion 103, and the spacer 50 can be attached to the end of the second portion 104 at the first portion 103.

In the present embodiment, since the pipe body 10 includes the first portion 103 and the second portion 104 that are connected, in order to prevent the water that has entered the pipe body 10 from flowing out through the joint of the first portion 103 and the second portion 104, A seal is provided at the junction of the first portion 103 and the second portion 104 to effect sealing of the first portion 103 and the second portion 104 at the joint. Of course, if the first portion 103 and the second portion 104 are connected in a manner that better achieves a seal at the joint (for example, a threaded connection and a better sealing at the screwed portion), the first portion 103 and the first portion may not be used. A seal is provided at the junction of the two portions 104.

In the present application, the spacer 50 can also be disposed within the tubular body 10 or outside of the tubular body 10 as part of the tubular body 10. Specifically, referring to FIG. 2, the second portion 104 includes a connecting portion 1041 and a protruding portion 1042. The connecting portion 1041 is coupled to the first portion 103, and the extending portion 1042 extends into the first portion 103 to form the spacer 50. In the present embodiment, the projecting portion 1042 serves as a portion of the second portion 104 that extends into the first portion 103 to form the spacer 50. Thereby, the spacer 50 is formed by making full use of the structure of the pipe body 10 itself, so that the structure of the water outlet pipe is simplified. Further, a shoulder 1043 is formed between the extending portion 1042 and the connecting portion 1041. The extending portion 1042 as the spacer 50 can form an accommodating chamber 12 with the first portion 103. The reset member 40 is disposed therein. The two ends of the 40 are respectively fixed on the shoulder 1043 and the adjusting member 20. As such, the reset member 40 can apply a reset force to the adjustment member 20 with the shoulder 1043 as a point of application.

In addition, the resetting member in the prior art is directly exposed to the water flow passage, so that the resetting member will hinder the flow of water, and the water flow is not smooth. In this embodiment, the spacer 50 formed by the extending portion 1042 is located in the water flow passage of the pipe body 10, such that the spacer 50 can reduce the water in the water flow passage and the reset member 40 to prevent the reset member 40 from scaling. Small even eliminates the blocking effect of the resetting member 40 on the water flow, so that the water flows smoothly in the pipe body 10.

The water flow passages of the first portion 103 and the second portion 104 are in communication to facilitate mixing of the water in the first portion 103 with the water in the second portion 104 to obtain warm water. As shown in FIG. 2, the adjusting member 20 is a cylindrical body which is open at both ends and is integrally sleeved in the first portion 103 such that the first portion 103 communicates with the water flow passage of the adjusting member 20. One end of the adjusting member 20 is inserted into the accommodating chamber 12 formed between the extending portion 1042 of the spacer 50 and the first portion 103, and the end portion of the extending portion 1042 extending into the first portion 103 is located in the adjusting member 20, That is, the end portion of the extending portion 1042 extending into the first portion 103 is inserted into the adjusting member 20, and the portion of the extending portion 1042 located in the adjusting member 20 is provided with a flow portion. The flow portion communicates the second portion 104 with the water flow passage of the regulating member 20 such that the water flow passage connecting the first portion 103 and the second portion 104 is realized.

In addition, the flow portion communicates with the first portion 103 and the second portion 104. Thus, the water flow passage inside the water outlet pipe of the present application has a through structure, so that the water flow is relatively smooth, thereby preventing scale generation.

Further, in order to prevent the impurities existing in the water from being caught in the water flow passage to cause clogging of the flow portion, the water outlet pipe may further include an inclined surface drainage member 60, and the flow guiding member 60 is disposed at the end portion of the extending portion 1042 in the regulating member 20. Or on the adjustment member 20; the flow guide 60 can direct the water in the first portion 103 to the second portion 104. As shown in FIG. 2, the flow guiding member 60 having an inclined surface can be substantially tapered, and water flows downstream under the guidance of the inclined surface of the flow guiding member 60, and impurities which may exist in the water will also flow downstream with the water flow without being stuck in the water flow. In the channel, the water flow is smoother.

The specific implementation of the flow-through portion may be an end opening of the insertion portion 1042 in the adjustment member 20, so that the water in the first portion 103 can flow out relatively smoothly. Alternatively, as a preferred embodiment, the flow portion includes at least one first through hole 1045, and at least one first through hole 1045 is disposed on a side wall of the extending portion 1042. Thus, after the water in the first portion 103 flows out through the at least one first through hole 1045, it will flow downstream along the inner wall of the adjusting member 20 so as to be mixed with the water entering through the first water inlet 101. In this way, the hot and cold water can be mixed more fully and uniformly to obtain warm water.

In this embodiment, the end of the insertion portion 1042 in the adjustment member 20 is closed, and the water in the first portion 103 can flow out through the at least one first through hole 1045. Preferably, in order to equalize the water flow, at least one first through hole 1045 is uniformly disposed on the side wall of the extending portion 1042 in the circumferential direction. Thus, the water in the first portion 103 can be uniformly discharged through the at least one first through hole 1045, so that the sufficiency and uniformity of the mixing of the hot and cold water can be further improved.

When the flow portion is at least one through hole 1045 disposed on the side wall of the extending portion 1042, the adjustment member 20 and the side wall of the extending portion 1042 provided with the flow portion may be changed in real time during the movement of the adjusting member 20. The distance is controlled to simultaneously control the flow rate of the water entering the pipe body 10 through the first water inlet port 101 and the second water inlet port 102, so that the water outlet pipe can respond and output warm water faster according to the water temperature. Specifically, the adjusting member 20 has a first working position and a second working position; when the adjusting member 20 is in the first working position, the adjusting member 20 blocks the first water inlet 101; When the joint 20 is in the second working position, the adjusting member 20 at least partially opens the first water inlet 101 and can regulate the flow rate of water entering the pipe body 10 through the first water inlet 101 and the second water inlet 102.

Referring to FIG. 2, a second through hole 203 is defined in the sidewall of the adjusting member 20. When the adjusting member 20 is in the first working position, the second through hole 203 is offset from the first water inlet 101, and the side wall of the adjusting member 20 blocks the first water inlet 101. When the adjusting member 20 is in the second working position, the second through hole 203 is at least partially in communication with the first water inlet 101. Moreover, the difference in the area of communication between the second through hole 203 and the first water inlet 101, the degree to which the first water inlet 101 is opened is correspondingly changed, thereby realizing the flow control of the water entering the pipe body 10 through the first water inlet 101.

In addition, the adjusting member 20 has a tapered structure 201, and the tapered structure 201 is located upstream of the first water inlet 101 in the water flow direction; a gap 202 between the tapered structure 201 and the side wall provided with the flow portion is formed, When the adjustment member 20 is moved from the first working position to the second working position, the size of the gap 202 is reduced. The water entering the second portion 104 through the second water inlet 102 enters the first portion 103 by the flow portion and the gap 202. Movement of the adjustment member 20 causes the gap 202 to vary in size, thereby changing the flow area of water flowing from the first portion 103 to the second portion 104, thereby effecting control of the flow of water entering the tubular body 10 through the second water inlet 102.

As shown in FIG. 2, the tapered structure 201 may be formed such that the adjusting member 20 is gradually inwardly convex in the water flow direction near the inner wall of the flow portion. In a specific embodiment, the adjusting member 20 has a cylindrical shape, and an inner diameter of a portion of the adjusting member 20 close to the flow portion gradually decreases in a water flow direction to form a slope or a smoothly transitioning curved surface, and the reduced inner diameter portion is The tapered structure 201 is described.

Please refer to FIG. 1 and FIG. 2 together. In practical applications, when the outlet pipe of the present application is connected to the bottom wall of the inner tank 1 of the water heater, the outlet pipe is a lower outlet mode. The water entering through the first water inlet 101 is the cold water in the lower portion of the inner tank 1, and the water entering through the second water inlet port 102 is the hot water in the upper portion of the inner tank 1. The hot water entering the pipe body 10 through the second water inlet 102 flows through the heat-sensitive element 30. When the temperature of the hot water reaches a predetermined temperature, the temperature-sensitive element 30 drives the adjusting member 20 to move upward, so that the second through hole 203 and the first hole When the water inlet 101 is in communication, the cold water in the lower portion of the inner tank 1 enters the second portion 104 through the first water inlet 101 and the second through hole 203 to be mixed with the hot water. At the same time, the adjustment member 20 moves upward, and the tapered structure 201 reduces the size of the gap 201 through which the water supply flows, thereby reducing the amount of hot water entering the second portion 104 through the second water inlet 102. In this way, the amount of cold water is increased, and the amount of hot water is reduced, so that warm water having a suitable temperature can be obtained relatively quickly.

FIG. 3 is a schematic view showing the assembly of the water outlet pipe and the water heater liner according to another embodiment of the present application. Please refer to FIG. 2 and FIG. 3 together. When the outlet pipe is disposed on the top wall of the inner tank 1 of the water heater, the outlet pipe is in the upper water outlet mode. The difference from the above case is that the water entering through the first water inlet 101 and the second water inlet 102 is hot water and cold water, respectively. When the temperature of the cold water entering the second water inlet 102 is low, the biasing force applied by the resetting member 40 to the adjusting member 20 is greater than the biasing force of the heat-sensitive element 30 to the adjusting member 20, so that the adjusting member 20 is moved downward, so that Two through holes 203 and first into When the nozzle 101 is in communication, the hot water in the upper portion of the inner tank 1 enters the second portion 104 through the first water inlet 101 and the second through hole 203 to be mixed with cold water. At the same time, the adjustment member 20 is moved downward, and the tapered structure 201 reduces the size of the gap 201 through which the water supply flows, so that the amount of cold water entering the second portion 104 can be reduced. In this way, the amount of hot water is increased, and the amount of cold water is reduced, so that warm water having a suitable temperature can be obtained relatively quickly.

Referring to FIG. 1 , FIG. 2 and FIG. 3 together, in order to allow water in the lower or upper portion of the inner tank 1 of the water heater to enter the pipe body 10 through the second water inlet 102, the second end 10B of the pipe body 10 is formed to open. a second water inlet 102; another longitudinally extending tubular body 70 may be inserted into the second water inlet 102. The other longitudinally extending tubular body 70 is inserted into the second water inlet 102 at one end and extends at the other end. And close to the inner wall of the liner 1. With the present embodiment, the segmentation assembly of the outlet pipe can be realized, which can shorten the length of each pipe segment constituting the outlet pipe. In addition, the length of the other longitudinally extending tubular body 70 can be adjusted according to actual needs, which greatly improves the applicability and flexibility of the outlet pipe of the present application.

When the outlet pipe of the present application is installed on the inner tank of the water heater, it is usually necessary to adjust the initial compression amount of the reset member 40 in advance so that a resetting force can be applied to the adjusting member 20 within a reasonable range to achieve the water discharge. Better control of water temperature. To this end, the outlet pipe further includes a presetting mechanism disposed on the pipe body 10, and the presetting mechanism can adjust the initial compression amount of the reset member 40. As shown in FIG. 2, in actual application, when the elongation of the resetting member 40 reaches the maximum, the adjusting member 20 cannot be placed in the first working position, thereby causing the water temperature to be low, and the presetting mechanism can be increased at this time. The initial compression amount of the resetting member 40; when the shortening amount of the resetting member 40 reaches the maximum, the adjusting member 20 cannot be placed in the second working position, thereby causing the outlet water temperature to be high, and the resetting member 40 can be reduced by the presetting mechanism at this time. The initial amount of compression.

In one embodiment, the presetting mechanism includes: a plurality of presetting portions disposed on the sidewall of the first portion 103, the presetting portion having a stopping surface facing the first end 10A, the plurality of stopping surfaces and the first end The distance of 10A is different; at least one stop 1044 is provided on the outer wall of the second portion 104, and at least one of the stops 1044 can be switched in a plurality of pre-adjustments and secured to the stop faces of one of the pre-adjustments. In the present embodiment, the plurality of stop faces are different in distance from the first end 10A such that the plurality of pre-adjustments have different depths. When the stoppers 1044 are in different pre-adjustments, the initial deformation amount applied to the reset member 40 by the first portion 103 may be made different. Also, the stopper 1044 can be switched in a plurality of pre-adjusting portions, so that adjustment of the initial compression amount of the reset member 40 can be achieved.

The pre-adjustment portion may be a groove or a through hole. When the pre-adjusting portion is a groove (the side wall of the first portion 103 may not penetrate), the opening of the groove faces the first portion 103, and the groove faces the inner wall surface of the first end 10A to form the stop surface. When the pre-adjusting portion is a through hole (the side wall of the first portion 103 penetrates), the through hole faces the inner wall surface of the first end 10A to form the stopper surface.

In order to enable the stop 1044 to be switched among the plurality of pre-adjusting portions, a communication portion communicating with the plurality of pre-adjusting portions may be disposed on the outer wall of the first portion 103, and the communicating portion can pass the blocking block 1044 so that the blocking member 1044 can Cut in multiple pre-adjustments change. The communication portion may also be a groove or a through hole that turns on a plurality of presetting portions at one end. The block 1044 can enter the different pre-adjustment portions through the communication portion and be stopped by the corresponding stop faces. When it is desired to adjust the initial amount of compression of the reset member 40, a relative force can be applied to the first portion 103 and the second portion 104 to cause the stop 1044 to enter the flow portion and then rotate the first portion 103 and/or the second portion 104, The stopper 1044 is switched to the other pre-adjustment sections.

Further, in order to make the stopper 1044 enter the communication portion, and also to facilitate the connection of the first portion 103 and the second portion 104, the inner wall of the first portion 103 is provided with a groove extending along the axial direction of the first portion 103. One end of the groove extends to the end of the first portion 103, and an opening is formed at the end of the first portion 103; the other end of the groove extends and communicates with the communicating portion. When it is desired to connect the second portion 104 with the first portion 103, the stop 1044 can be inserted into the recess through the opening, and then the first portion 103 and/or the second portion 104 can be rotated to cause the stop 1044 to enter the communication portion, and Finally, it enters the pre-adjustment section and is stopped by the corresponding stop surface.

The present application further facilitates the connection of the first portion 103 and the second portion 104 when the adjustment of the initial compression amount of the reset member 40 is achieved by providing the stopper 1044 and the pre-adjustment portion engaged therewith. In addition, since the reset member 40 exerts an opposite force on the first portion 103 and the second portion 104, the stopper 1044 can be stopped by the stop surface of the pre-adjusted portion, that is, the stopper 1044 can be stuck in the pre-preset In the adjustment portion, the connection between the first portion 103 and the second portion 104 is made relatively stable, and the breakage is less likely to occur.

In another embodiment, the presetting mechanism comprises: an internal thread disposed on an inner wall of the first portion 103; an external thread disposed on an outer wall of the second portion 104, the external thread being fitted and connected with the internal thread; the external thread and the internal thread The screw length is adjustable. In the present embodiment, the initial compression amount of the reset member 40 is adjusted by adjusting the change of the inner and outer thread screw lengths, and the structure is relatively simple and convenient to implement. Specifically, when it is required to increase the initial compression amount of the reset member 40, the screwing length of the inner and outer threads can be increased; when the initial compression amount of the reset member 40 needs to be reduced, the screwing length of the inner and outer threads can be reduced.

Please refer to FIG. 1 , FIG. 2 and FIG. 3 . Corresponding to the foregoing description, when the outlet pipe provided by the present application is installed on the inner tank 1 of the water heater, the outlet water outlet mode includes the lowering and the uppering. Specifically, as shown in FIG. 1 , the first end 10A of the water outlet pipe can be connected to the bottom wall of the inner tank 1 , and the first water inlet 101 can supply water (cold water) and the second water inlet 102 of the lower part of the inner tank 1 . The water (hot water) in the upper portion of the tank 1 enters the pipe body 10, and the hot and cold water is mixed in the pipe body 10 to obtain warm water and is output from the lower end of the pipe body 10. Alternatively, as shown in FIG. 3, the first end 10A of the outlet pipe may be connected to the top wall of the inner tank 1, and the first water inlet 101 can supply water (hot water) and the second water inlet 102 of the upper portion of the inner tank 1 for supply. The water (cold water) in the lower portion of the tank 1 enters the pipe body 10, and the hot and cold water is mixed in the pipe body 10 to obtain warm water and the upper end of the pipe body 10 is output.

The outlet pipe of the present application can better protect the reset member, so that it can maintain better expansion performance for a long time. Cause Therefore, the service life of the outlet pipe is longer than that of the prior art. The water heater using the outlet pipe of the present application can reduce the maintenance and maintenance cost, and the economic benefit is remarkable.

In addition, applying the outlet pipe of the present application to the inner tank of the water heater can enable the water heater to better control the outlet water temperature, and can quickly respond according to the water temperature to output warm water with suitable temperature for the user to use, and the water supply of the water heater is relatively smooth. User experience is better.

It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for describing purposes only and distinguishing similar objects, and there is no order between them, nor can it be understood as an indication or Implied relative importance. Further, in the description of the present application, the meaning of "a plurality" is two or more unless otherwise stated.

It is to be understood that the above description is for the purpose of illustration and not limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art from this description. Therefore, the scope of the present invention should be determined by reference to the foregoing description The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference in its entirety for all purposes. Any aspect of the subject matter disclosed herein is omitted in the preceding claims and is not intended to be a waiver of the subject matter, nor should the applicant be considered as a part of the disclosed subject matter.

Claims

An outlet pipe for installation in a tank of a water heater, characterized by comprising:

a tubular body having opposite first and second ends, the first end being connectable to the inner tank, and the second end being extendable into the inner casing;

a first water inlet disposed on the tubular body adjacent to the first end and a second water inlet adjacent to the second end;

An adjusting member, the adjusting member is movably disposed on the pipe body;

a heat sensitive element disposed on the tube body, the heat sensitive element being capable of driving the adjustment member to move at a predetermined temperature to adjust access to the first water inlet and/or the second water inlet The flow of water in the pipe;

a reset member disposed on the tube body, the reset member being capable of applying a force to the adjusting member to reset the adjusting member;

A spacer disposed on the tubular body, the spacer at least partially obscuring the reset member to at least partially isolate the reset member and water located adjacent the reset member.
The outlet pipe according to claim 1, wherein an accommodating chamber is formed between the partition and the wall of the tubular body, and the reset member is at least partially disposed in the accommodating chamber. .
The water outlet pipe according to claim 2, wherein an end of the adjusting member adjacent to the accommodating chamber is inserted in the accommodating chamber.
An outlet pipe according to claim 2 or 3, wherein a wall adjacent to said accommodating chamber portion is in sealing contact with an inner wall of said accommodating chamber within said movable range of said adjusting member The chamber is sealed.
The outlet pipe of claim 1 wherein said tubular body includes first and second portions joined, said spacer being coupled to said second portion and extending into said first portion.
The outlet pipe according to claim 5, wherein said second portion includes a connecting portion and said extending portion, said connecting portion being coupled to said first portion, said extending portion extending into said first portion The spacer is formed.
The outlet pipe according to claim 6, wherein a shoulder is formed between the extending portion and the connecting portion, and the reset member is disposed between the shoulder and the adjusting member.
The outlet pipe according to claim 6, wherein an end portion of the extending portion that protrudes into the first portion is located in the adjusting member, and a portion of the protruding portion located in the adjusting member is provided a circulation portion that communicates the water flow passages of the first portion and the second portion.
The outlet pipe according to claim 8, wherein said circulation portion includes at least one first through hole, and said at least one first through hole is provided on a side wall of said extending portion.
The outlet pipe according to claim 8, wherein the adjusting member has a first working position and a second working position; and when the adjusting member is in the first working position, the adjusting member blocks the first The water inlet; the adjusting member at least partially opens the first water inlet when the adjusting member is in the second working position, and can adjust to enter the tube through the first water inlet and the second water inlet The flow of water in the body.
The outlet pipe according to claim 10, wherein said adjusting member has a tapered structure, said tapered structure being located upstream of said first water inlet in a water flow direction; said tapered structure and said A gap in which the water supply flows is formed between the side walls of the flow portion; and the size of the gap decreases when the adjusting member moves from the first working position to the second working position.
The outlet pipe according to claim 8, wherein said outlet pipe further comprises an inclined surface drainage member, said drainage member being disposed at an end of said extension portion in said adjustment member or said adjustment The drain member can direct water in the first portion to the second portion.
The outlet pipe according to claim 1, wherein the spacer is cylindrical, and the tubular spacer is disposed inside the tube or outside the tube; the spacer is away from one end of the adjusting member. Attached to the wall of the tube.
The outlet pipe according to any one of claims 5 to 12, wherein the outlet pipe further comprises a presetting mechanism disposed on the pipe body, the presetting mechanism capable of adjusting an initial of the resetting member The amount of compression.
The outlet pipe of claim 14 wherein said presetting mechanism comprises:

a plurality of presetting portions disposed on the sidewall of the first portion, the presetting portion having a stop facing the first end The distance between the plurality of stop faces and the first end is different;

At least one stop disposed on the outer wall of the second portion, the at least one stop being switchable in the plurality of pre-adjusting portions and secured to a stop surface of one of the pre-adjusting portions.
The outlet pipe of claim 14 wherein said presetting mechanism comprises:

An internal thread disposed on an inner wall of the first portion;

An external thread disposed on the outer wall of the second portion, the external thread being adapted and coupled to the internal thread; the external thread and the internal thread having a screwing length adjustable.
The outlet pipe according to claim 1, wherein said first end is connected to a bottom wall of said inner casing; said first water inlet is capable of allowing water in a lower portion of said inner tank to enter said tubular body The second water inlet can supply water from the upper portion of the inner tank into the tube body.
The outlet pipe according to claim 1, wherein said first end is connected to a top wall of said inner casing; said first water inlet is capable of allowing water in said upper portion of said inner tank to enter said tubular body The second water inlet can allow water in the lower portion of the inner tank to enter the tubular body.