CN219955690U - Boiled water flow limiting device and gas water heater - Google Patents

Abstract

The utility model provides a boiled water flow limiting device and a gas water heater, wherein the boiled water flow limiting device comprises a flow limiting part, a damping part, a reset part and a valve body, the valve body is provided with a water inlet and a water outlet, the reset part, the damping part and the flow limiting part are arranged in the valve body, the damping part is abutted against the inner wall surface of the valve body, one end of the damping part is connected with the flow limiting part, and the reset part is abutted against the other end of the damping part so as to drive the damping part and the flow limiting part to move in the valve body and realize that the flow limiting part is abutted against the water inlet. The flow rate of water entering the gas water heater is reduced through the boiled water flow limiting device, and when the flow rate is small, the cold water flowing through the water heater is less during front cleaning, ignition and fire transfer, so that the temperature difference of the water is reduced.

Description

Boiled water flow limiting device and gas water heater

Technical Field

The utility model relates to the field of gas water heaters, in particular to a boiled water flow limiting device and a gas water heater.

Background

The condition of switching water often appears in the gas heater in the use, when closing water when restarting after using hot water, gas heater need clean before going on, ignition and pass the fire have certain time difference to cause and appear the water temperature after the boiling water is hot earlier slowly becoming after becoming cold again and get warm, have caused relatively poor gas heater to use and experience. In addition, a great deal of cold water is wasted in the process of starting the hot water and waiting for the temperature of the water to become hot.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art that the gas water heater is poor in use experience caused by heating the water after being cooled slowly when the water is turned off and restarted after hot water is used.

The utility model solves the technical problems by the following technical scheme:

the utility model provides a boiled water current limiting device, boiled water current limiting device includes current limiting part, damping part, reset part and valve body, have water inlet and delivery port on the valve body, reset part damping part with current limiting part all set up in the inside of valve body, damping part laminating support in the internal face of valve body, just damping part's one end connect in current limiting part, reset part support and act on damping part's the other end, in order to drive damping part with current limiting part is in the valve body removes and realizes current limiting part supports and leans on water inlet department.

In this scheme, adopt foretell structural style, water from the water inlet gets into boiled water current limiter, the current limiting part is to intaking the restriction, damping part has slowed down the speed that the current limiter slided in the valve body inside. The flow limiting component is pushed by water flow under the action of water pressure until the water inlet blocked by the flow limiting component is opened, so that water can smoothly reach the water outlet from the water inlet to realize smooth water outlet. When the water flow is closed, the reset component can push the damping component so as to drive the flow limiting component to be classified, so that the flow limiting component can block the water inlet.

Preferably, the damping part comprises a damping block, the current limiting part is connected with the damping block, an installation cavity is formed in the valve body, the damping block and the reset part are both located in the installation cavity, the damping block is attached to and abutted against the inner wall surface of the installation cavity, and two ends of the reset part are respectively abutted against the damping block and the inner wall surface of the valve body.

In the scheme, the damping block can achieve blocking effect by adopting the structural form, so that the damping component slowly slides in the mounting cavity, and the water flow is controlled. The reset component acts on the damping block, so that the damping block can be reset to an initial position under the action of the reset component.

Preferably, the damping block divides the installation cavity into a reset space and a movable space, and is provided with damping holes which are respectively communicated with the reset space and the movable space.

In this scheme, adopt foretell structural style, the damping hole intercommunication in reset space with the activity space, thereby the damping piece is in the installation intracavity activity extrudees reset space. The water pushing the damping block to slide and flow into the reset space can flow out of the damping hole and return to the movable space.

Preferably, the damping member further comprises a one-way valve; the reset component is arranged in the reset space, and the one-way valve is arranged in the damping block, so that water in the movable space flows to the reset space through the one-way valve and water in the reset space is limited to flow back.

In this scheme, adopt foretell structural style, thereby the check valve makes the hydroenergy in the activity space promotes thereby the check valve flows through damping part reaches the space resets, because the setting of check valve makes the water in the space resets can't pass through the check valve flows back to the activity space. The water reaching the reset space returns to the movable space through the damping hole, so that the speed of the movement of the damping part is controlled.

Preferably, the one-way valve further comprises a valve seat, a first spring and a valve core; the valve seat is arranged inside the damping block, one end of the first spring is clung to the valve seat, the valve core is clung to the other end of the first spring, and the first spring is used for enabling the valve core to return to the original position and block the opening of the damping block.

In this scheme, adopt above-mentioned structural style, rivers promote the case to the direction motion of disk seat to realize the compression to first spring. The valve core is pushed by water flow to generate a circulation space, so that the water flow can pass through and reach the reset space. When no water flows through the valve core, the first spring can push the valve core to reset, so that the one-way valve returns to the initial state.

Preferably, the check valve further comprises a clamp spring, the clamp spring is arranged in the damping block, and the valve seat is fixedly connected to the clamp spring.

In this scheme, adopt foretell structural style, the jump ring sets up in the damping piece for the jump ring can not take place under the effect of rivers with the relative motion of damping piece. So that the one-way valve can act as a restriction to the flow direction of the water flow.

Preferably, the flow limiting component comprises a flow limiting spring, an upper cover and a movable part, one end of the upper cover is connected with the damping component, the upper cover is attached to and abutted against the inner wall surface of the water inlet, the upper cover is provided with a flow limiting hole communicated with the water inlet and the water outlet, two ends of the flow limiting spring are respectively abutted against the movable part and the other end of the upper cover, and the movable part moves in the valve body to adjust the size of the flow limiting hole.

In this scheme, adopt foretell structural style, the movable part can slide in the valve body under the promotion of rivers thereby realize to the adjustment of restriction orifice size. When the water flow becomes large, the movable piece is close to the upper cover, so that the size of the flow limiting hole is reduced, the control of the water flow reaching the water outlet from the water inlet is realized, and the water flow is moderately kept unchanged, so that the flow limiting is realized.

Preferably, the movable part comprises a movable cover and a flow limiting body, one end of the upper cover facing the water inlet is provided with a sliding cavity, the movable cover stretches into the sliding cavity and moves in the sliding cavity, one end of the flow limiting body is connected with the movable cover, and the other end of the flow limiting body stretches into the flow limiting hole.

In this scheme, adopt foretell structural style, the movable cover can produce relative slip with the upper cover under the promotion of rivers, the restriction body is close to under the effect of movable cover the upper cover. The distance of the flow limiting body from the upper cover is proportional to the size of the flow limiting hole. The flow limiting hole is smaller under the action of water flow when the water flow is larger, so that the flow rate of the water flow passing through the flow limiting hole is kept unchanged.

Preferably, the inner side wall of the water inlet is provided with a retainer ring for abutting against the flow-limiting member.

In this scheme, adopt foretell structural style, the retaining ring support and lean on in the restriction part for the restriction part can not break away from when restoring to the throne under the effect of restoring to the throne the part.

A gas water heater comprising the boiled water flow limiting device.

In the scheme, the water inlet of the gas water heater uses the boiled water flow limiting device to limit flow when the gas water heater works. The boiled water flow limiting device can limit the flow of water entering the gas water heater, so that the flow of the water entering the gas water heater is controlled, enough time is provided for the ignition process of the gas water heater, and the temperature difference of water discharged by the gas water heater can be reduced.

On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.

The utility model has the positive progress effects that: the water flow rate of entering the gas water heater is reduced by arranging the boiled water flow limiting device, when the flow rate is small, the cold water flowing through the water heater is less when the water flow rate is small, and the waste heat stored in the heat exchanger can play a certain heating role on the small flow rate, so that the temperature difference of the water is reduced, and enough time is provided for the ignition process to improve the use experience of the gas water heater.

Drawings

FIG. 1 is a schematic cross-sectional view of a boiled water flow-limiting device according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a boiled water flow limiting device according to an embodiment of the present utility model in an unrestrained state;

FIG. 3 is a schematic view of a damping member according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a flow restriction device according to an embodiment of the utility model;

FIG. 5 is a schematic cross-sectional view of a damping member according to an embodiment of the present utility model.

Reference numerals illustrate:

damping member 1

Damping hole 101

Valve seat 102

Valve core 103

First spring 104

Flow-limiting member 2

Flow restrictor orifice 201

Fluid limiting body 202

Upper cover 203

Flow limiting spring 204

Movable cover 205

Valve body 3

Reset device 4

Water outlet 5

Water inlet 6

Retainer ring 7

Detailed Description

The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.

As shown in fig. 1 and 2, in this embodiment, a boiled water flow limiting device is disclosed, the boiled water flow limiting device includes a flow limiting component 2, a damping component 1, a reset component 4 and a valve body 3, the valve body 3 is provided with a water inlet 6 and a water outlet 5, the reset component 4, the damping component 1 and the flow limiting component 2 are all arranged in the valve body 3, the damping component 1 is attached to and abutted against the inner wall surface of the valve body 3, one end of the damping component 1 is connected to the flow limiting component 2, the reset component 4 is abutted against the other end acting on the damping component 1, so as to drive the damping component 1 and the flow limiting component 2 to move in the valve body 3 and realize that the flow limiting component 2 is abutted against the water inlet 6. The water outlet 5 is connected with the gas water heater, water flow enters the valve body 3 from the water inlet 6, and the flow limiting part 2 is pushed to slide in the valve body 3 under the action of the water flow. The flow limiting member 2 slowly slides in the valve body 3 under the action of the damping member 1, and the flow limiting member 2 can adjust the size of the flow limiting hole 201 according to the size of the water flow. The flow limiting hole 201 becomes smaller when the water flow becomes larger, and the flow limiting hole 201 becomes larger gradually under the action of the flow limiting spring when the water flow becomes smaller, so that the flow rate of the water flow passing through the flow limiting component 2 is kept the same, and the flow limiting effect on the gas water heater is achieved. The speed of the flow restriction device 2 is further hindered by the damping device 1. During the use of the boiled water flow limiting device, water flows through the damping part 1 to reach the reset space, and water in the reset space flows back to the movable space through the damping hole 101 arranged on the damping part 1 and is discharged from the water outlet 5.

As shown in fig. 2 and 4, in this embodiment, the damping member 1 includes a damping block, the flow limiting member 2 is connected to the damping block, the valve body 3 has an installation cavity therein, the damping block and the reset member 4 are both located in the installation cavity, the damping block is attached to and abuts against an inner wall surface of the installation cavity, and two ends of the reset member 4 are respectively abutted against the damping block and an inner wall surface of the valve body 3. The damping block is connected with the current limiting component 2 through ultrasonic welding, and the damping block and the current limiting component 2 slide in the installation cavity. The damping block can effectively limit the sliding speed of the flow limiting part 2, so that the flow limiting part 2 can control the flow of water passing through the flow limiting part 2. When the switch changes the water flow, the flow limiting part 2 is limited by the damping block to slide under the action of the damping block, so that the friction force born by the flow limiting part 2 during sliding is increased, a longer-time flow limiting effect can be realized, water entering the gas water heater can keep the water flow at the opening section, and enough time is provided for reheating the gas water heater.

As shown in fig. 5 and 3, in the present embodiment, the damping block partitions the installation cavity into a reset space and a movable space, and the damping block is provided with a damping hole 101, and the damping hole 101 is respectively communicated with the reset space and the movable space. The damping block is arranged above the flow limiting component 2, the flow limiting component 2 slides under the pushing of water flow, and the water passing through the flow limiting component 2 can reach the damping component 1. The water flow can reach the reset space after passing through the damping part 1, and the water in the reset space of the one-way valve arranged in the damping part 1 can not return through the original path. The damping hole 101 can be used for realizing backflow of water in the reset space through the damping hole 101 while compressing the reset space, and the backflow water is discharged out of the boiled water flow limiting device to enter the gas water heater after reaching the movable space. The pressure difference in the reset space is maintained so that the reset space can be continuously compressed. In this embodiment, the number of the damping holes 101 is four, and the four damping holes 101 are circumferentially distributed in the damping block. When the reset space is compressed, water in the reset space can be uniformly discharged through the four damping holes 101, so that the damping blocks are uniformly distributed by pressure from the reset space, and deflection of the damping part 1 is avoided, and sliding of the damping part 1 is influenced.

As shown in fig. 2 and 5, in the present embodiment, the damping member 1 further includes a check valve; the reset part 4 is arranged in the reset space, and the one-way valve is arranged in the damping block, so that water in the movable space flows to the reset space through the one-way valve and water backflow in the reset space is limited. The damping part is pushed by water to slide in the movable groove, water flows through the middle part of the damping part 1, and the one-way valve can be pushed by the water flowing through the flow limiting part 2, so that the water flows into the damping part 1 to reach the reset space. In order to further limit the moving speed of the damping part 1, water in the reset space is limited to flow back into the movable space through the one-way valve, so that the reset space and the movable space can keep constant pressure difference, and the damping part 1 is ensured to be kept unchanged when in operation due to resistance from the reset space. And under the effect of the check valve, the water in the reset space can only be discharged out of the reset space through the damping hole 101, the size of the damping hole 101 is smaller, so that the flow of the water discharged from the reset space in unit time is controlled, and the reset force of the reset part 4 along with the outflow of the water is gradually increased, so that the pressure applied by the reset space to the damping part 1 is kept unchanged.

As shown in fig. 5, in the present embodiment, the check valve further includes a valve seat 102, a first spring 104, and a valve spool 103; the valve seat 102 is arranged in the damping block, one end of the first spring 104 is clung to the valve seat 102, the valve core 103 is clung to the other end of the first spring 104, and the first spring 104 is used for enabling the valve core 103 to be capable of homing and blocking the opening of the damping block. The valve seat 102 is fixed to the interior of the damping mass such that the valve seat 102 remains stationary relative to the damping mass at all times. The valve core 103 faces one side of the flow restricting member 2, and when water passes through it, the water pushes the valve core 103 to move, and the valve core 103 compresses the first spring 104 and approaches the valve seat 102 while moving, so that the water can pass through the valve core 103 to reach into the reset space. When no water passes through, the first spring can push the valve core 103 and classify the valve core 103 into a mode that the valve core 103 seals the opening of the damping block, so that the check valve is closed, and water in the reset space is prevented from flowing to the movable space through the check valve.

As shown in fig. 5, the check valve further includes a snap spring, which is disposed inside the damping block, and the valve seat 102 is fixedly connected to the snap spring. The clamp spring can fix the valve seat 102, and the valve seat 102 is prevented from sliding relative to the damping block. The valve seat 102 is fixed on the damping block, so that water flow can smoothly push the valve core 103, and the effect of opening the one-way valve is realized. And the end of the first spring 104 can also act on the valve seat 102, so that the first spring 104 can obtain the reaction force from the valve seat 102, thereby realizing the return work of the first spring 104 to the valve core 103 and simultaneously blocking the backflow of water in the return space.

As shown in fig. 4, in this embodiment, the flow limiting member 2 includes a flow limiting spring 204, an upper cover 203 and a movable member, one end of the upper cover 203 is connected to the damping member 1, the upper cover 203 is attached to and abuts against an inner wall surface at the water inlet 6, the upper cover 203 is provided with a flow limiting hole 201 communicating with the water inlet 6 and the water outlet 5, two ends of the flow limiting spring 204 abut against the movable member and the other end of the upper cover 203 respectively, and the movable member moves in the valve body 3 to adjust the size of the flow limiting hole 201. The upper cover 203 is closely attached to the inner side wall of the water inlet 6, so that water does not bypass the flow-limiting member 2 when flowing, but passes through the inside of the flow-limiting member 2, thereby realizing the flow-limiting effect on water flow. The flow limiting hole formed in the upper cover 203 is used for passing through the flowing water in the flow limiting component 2, the movable piece is gradually close to the upper cover 203 under the pushing of the flowing water, and the size of the flow limiting hole 201 is reduced due to the fact that the space, close to the movable piece, of the movable piece is reduced to be smaller than that of the space, between the movable piece and the upper cover 203. The movable member can be brought closer to the upper cover 203 because the thrust from the water flow is about large when the water flow is about large. When the water flow becomes larger, the size of the limiting hole 201 becomes smaller, so that the flow of the water passing through the limiting hole 201 in unit time is kept unchanged, and the effect of limiting the flow is realized.

As shown in fig. 4, in the present embodiment, the movable member includes a movable cover 205 and a flow limiting body 202, one end of the upper cover 203 facing the water inlet 6 has a sliding cavity, the movable cover 205 extends into the sliding cavity and moves in the sliding cavity, one end of the flow limiting body 202 is connected to the movable cover 205, and the other end of the flow limiting body 202 extends into the flow limiting hole 201. The movable cover 205 can slide relatively with the upper cover 203 under the pushing of the water flow, the current limiting body 202 is fixed on the movable cover 205, and the current limiting body 202 and the movable cover 205 move together. The fluid limiting body 202 is close to the upper cover 203 by the movable cover 205. The distance of the flow restrictor 202 from the upper cap 203 is proportional to the size of the flow restrictor orifice 201. The restrictor 202 can be positioned closer to the upper cover 203 when the movable cover 205 is subjected to greater water flow. The size of the restricting flow hole 201 becomes smaller when the distance between the restricting flow body 202 and the upper cover 203 becomes smaller. When the water flow is about big, the movable cover 205 is about close to the upper cover 203, and the size of the flow limiting hole 201 is smaller, so that the flow rate of the water flow passing through the flow limiting hole 201 in unit time is kept unchanged, and the flow limiting effect on the water flow entering the gas water heater is realized.

As shown in fig. 1 and 2, in the present embodiment, the inner side wall of the water inlet 6 is provided with a retainer ring 7 for abutting against the flow restricting member 2. The retainer ring 7 abuts against the flow limiting member 2, and when the switch is closed and no water passes through, the resetting member 4 resets the damping member 1 and the flow limiting member 2. Due to the potential energy, after the reset part 4 is reset, the current limiting part 2 may be separated from the valve body 3 and fall outside, and the current limiting part 2 can be blocked inside the valve body 3 through the limit of the retainer ring 7.

The embodiment also discloses a gas water heater, which comprises the boiled water flow limiting device. In this embodiment, the water inlet 6 of the gas water heater is restricted by the boiled water restricting device when the gas water heater is in operation. The boiled water flow limiting device can limit the flow of water entering the gas water heater, so that the flow of water entering the gas water heater is controlled, when the flow is small, the cold water flowing through the gas water heater is less during cleaning, ignition and fire transmission before the flow is small, and the waste heat stored in the heat exchanger can play a certain heating role on the small flow, so that the temperature drop is also very small, enough time is provided for the ignition process of the gas water heater, and the temperature difference of water discharged through the gas water heater can be reduced, so that the use experience of the gas water heater is improved.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.

Claims (10)

1. The utility model provides a boiled water current limiting device, its characterized in that, boiled water current limiting device includes current limiting part, damping part, reset part and valve body, have water inlet and delivery port on the valve body, reset part damping part with current limiting part all set up in the inside of valve body, damping part laminating support in the internal face of valve body, just damping part's one end connect in current limiting part, reset part support and act on damping part's the other end, in order to drive damping part with current limiting part is in the valve body removes and realizes current limiting part supports and leans on water inlet department.

2. The boiled water flow limiting device as claimed in claim 1 wherein the damping member comprises a damping block, the flow limiting member is connected to the damping block, the valve body is provided with a mounting cavity therein, the damping block and the reset member are both positioned in the mounting cavity, the damping block is abutted against an inner wall surface of the mounting cavity, and two ends of the reset member are abutted against the damping block and the inner wall surface of the valve body respectively.

3. The boiled water flow limiting device as claimed in claim 2, wherein the damping block partitions the installation cavity into a reset space and a movable space, and the damping block is provided with damping holes which are respectively communicated with the reset space and the movable space.

4. A boiled water flow restrictor as claimed in claim 3 wherein the damping means further comprises a one-way valve; the reset component is arranged in the reset space, and the one-way valve is arranged in the damping block, so that water in the movable space flows to the reset space through the one-way valve and water in the reset space is limited to flow back.

5. The boiled water flow-limiting device as recited in claim 4 wherein the one-way valve further comprises a valve seat, a first spring, and a valve element; the valve seat is arranged inside the damping block, one end of the first spring is clung to the valve seat, the valve core is clung to the other end of the first spring, and the first spring is used for enabling the valve core to return to the original position and block the opening of the damping block.

6. The boiled water flow limiting device of claim 5 wherein the one-way valve further comprises a snap spring disposed within the damping block, the valve seat being fixedly connected to the snap spring.

7. The boiled water flow limiting device as claimed in claim 1, wherein the flow limiting member comprises a flow limiting spring, an upper cover and a movable member, one end of the upper cover is connected to the damping member, the upper cover is abutted against an inner wall surface of the water inlet, the upper cover is provided with a flow limiting hole communicated with the water inlet and the water outlet, two ends of the flow limiting spring are abutted against the movable member and the other end of the upper cover respectively, and the movable member moves in the valve body to adjust the size of the flow limiting hole.

8. The boiled water flow-limiting device as claimed in claim 7 wherein the movable member comprises a movable cover and a flow-limiting body, wherein one end of the upper cover facing the water inlet is provided with a sliding cavity, the movable cover extends into the sliding cavity and moves in the sliding cavity, one end of the flow-limiting body is connected to the movable cover, and the other end of the flow-limiting body extends into the flow-limiting hole.

9. The boiled water flow-limiting device as recited in claim 1 wherein an inner sidewall of the water inlet is provided with a retainer ring for abutting the flow-limiting member.

10. A gas water heater comprising a boiled water restrictor according to any one of claims 1 to 9.