CN116557605A

CN116557605A - Safety valve and water outlet device

Info

Publication number: CN116557605A
Application number: CN202310735906.7A
Authority: CN
Inventors: 谢炜; 米昆昆; 石文辉; 杨小正
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-08-08

Abstract

The invention discloses a safety valve and a water outlet device, wherein the safety valve comprises a shell and a valve core assembly, a water inlet, a first water outlet and a second water outlet are formed in the shell, the valve core assembly comprises a valve core, a temperature sensing piece and a reset spring, the temperature sensing piece is arranged between one end of the valve core and the shell, the reset spring is arranged between the other end of the valve core and the shell, the temperature sensing piece is deformed by temperature change so as to change the total action of the temperature sensing piece and the reset spring on the valve core, the blocking position of the valve core is switched, the safety valve is enabled to have a first water outlet state and a second water outlet state, in the first water outlet state, the valve core is blocked at the second water outlet, water flowing into the water inlet flows out through the first water outlet, in the second water outlet state, the valve core is blocked at the first water outlet, and water flowing into the water inlet flows out through the second water outlet; the technical scheme of the invention reduces the possibility of human body scalds.

Description

Safety valve and water outlet device

Technical Field

The invention relates to the technical field of waterway switching valves, in particular to a safety valve and a water outlet device.

Background

Most of the existing shower faucets at present adopt a common valve core and have no automatic temperature regulation function, and the temperature and the flow can be regulated frequently in use, so that the water temperature is increased suddenly due to misoperation, and the human body is scalded. Meanwhile, the cold water is suddenly interrupted, and only high-temperature hot water flows out to scald the human body.

Disclosure of Invention

The invention aims to provide a safety valve which aims to reduce the possibility of human body scalds.

To achieve the above object, the present invention provides a safety valve comprising:

the shell is provided with a water inlet, a first water outlet and a second water outlet; and

the valve core assembly comprises a valve core, a temperature sensing piece and a reset spring, wherein the temperature sensing piece is arranged between one end of the valve core and the shell, the reset spring is arranged between the other end of the valve core and the shell, the temperature sensing piece is deformed due to temperature change, so that the total action of the temperature sensing piece and the reset spring on the valve core is changed, the blocking position of the valve core is switched, the safety valve is enabled to have a first water outlet state and a second water outlet state, the valve core is blocked at the second water outlet, water flowing into the water inlet flows out through the first water outlet and flows out through the second water outlet, the valve core is blocked at the first water outlet, and water flowing into the water inlet flows out through the second water outlet.

Optionally, the temperature sensing element is a temperature sensing spring, and in the first water outlet state, the elasticity of the temperature sensing spring is smaller than that of the reset spring; in the second water outlet state, the elasticity of the temperature sensing spring is larger than that of the reset spring.

Optionally, the safety valve further comprises an adjusting component installed on the shell, the safety valve further has a third water outlet state, the adjusting component drives the valve core to be plugged at the second water outlet, and water flowing into the water inlet flows out through the first water outlet channel and the first water outlet in sequence.

Optionally, the housing is provided with a mounting hole, the valve core is provided with an adjusting plate, the adjusting assembly comprises a rotating shaft, the rotating shaft is close to the outer peripheral surface of one end of the valve core and is provided with an adjusting protrusion, the adjusting plate and the adjusting protrusion are arranged at intervals in a first water outlet state or a second water outlet state, the rotating shaft is rotated, so that the adjusting protrusion is lifted up by the adjusting plate to drive the valve core to be blocked at the second water outlet, and water flowing into the water inlet sequentially passes through the first water outlet channel and the first water outlet to flow out.

Optionally, the adjusting protrusion is a cam structure.

Optionally, the adjusting assembly further comprises a handle, the handle is fixedly installed on the rotating shaft, and anti-slip indication protrusions are arranged on the handle.

Optionally, the rotation axis is last to be equipped with spacing arch, be equipped with the spacing groove on the casing, the spacing groove is the arc setting, just the spacing groove is followed the circumference extension of rotation axis.

Optionally, the adjusting part further comprises a snap ring and a sealing joint, the sealing joint is installed at the installation hole, an annular abutting protrusion is arranged at one end of the rotating shaft, which is far away from the shell, the rotating shaft is inserted into the sealing joint from inside to outside, and the snap ring is clamped on the rotating shaft and is located between the abutting protrusion and the sealing joint.

Optionally, the valve core is a piston, a first water outlet channel is formed in the piston, in the first water outlet state, the reset spring pushes one end of the piston to be blocked at the second water outlet, water flowing in from the water inlet sequentially flows through the first water outlet channel and the first water outlet, in the second water outlet state, the other end of the piston is blocked at the first water outlet, so that the valve core is blocked at the first water outlet.

Optionally, the safety valve further comprises a filter screen plate, a plurality of water passing holes are formed in the filter screen plate, a second water outlet channel is formed by enclosing the inner wall surface of the valve core and the shell, the filter screen plate is installed in the second water outlet channel, and the water passing holes and the second water outlet channel are communicated with the second water outlet.

Optionally, the safety valve further comprises a water inlet connector connected with the water inlet pipe and a water outlet connector connected with the water outlet pipe, the water inlet connector is in sealing connection with the water inlet, the water inlet connector is communicated with the water inlet and the first water outlet channel, the water outlet connector is in sealing connection with the first water outlet, and the water outlet connector is communicated with the first water outlet.

The invention also provides a water outlet device which comprises the safety valve.

The safety valve comprises a shell and a valve core assembly, wherein a water inlet, a first water outlet and a second water outlet are formed in the shell, the valve core assembly comprises a valve core, a temperature sensing piece and a reset spring, the temperature sensing piece is arranged between one end of the valve core and the shell, the reset spring is arranged between the other end of the valve core and the shell, the temperature sensing piece is deformed due to temperature change, so that the total action of the temperature sensing piece and the reset spring on the valve core is changed, the blocking position of the valve core is further switched, the safety valve is enabled to have a first water outlet state and a second water outlet state, when the safety valve is in the first water outlet state, the temperature of water flowing into the water inlet is smaller than the preset temperature of the temperature sensing piece, the reset spring pushes the valve core to block at the second water outlet, the water flowing into the water inlet flows out through the second water outlet, the temperature sensing piece is pushed to be deformed at the second water outlet state, the valve core is pushed to be blocked at the first water outlet, the water outlet flows out of the first water outlet is deviated from the user, the user is enabled to be set by the second water outlet, the user is enabled to be scalded, the user can experience is improved, and the user can feel scalded by the user is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of an embodiment of a safety valve of the present invention in a first water outlet state;

FIG. 2 is a cross-sectional view of an embodiment of the safety valve of the present invention in a second water outlet state;

FIG. 3 is a schematic view of another embodiment of the safety valve of the present invention;

FIG. 4 is a cross-sectional view of another embodiment of the safety valve of the present invention in a first water outlet state;

FIG. 5 is a cross-sectional view of another embodiment of the safety valve of the present invention in a second water outlet state;

FIG. 6 is a cross-sectional view of another embodiment of the safety valve of the present invention in a third water outlet state;

FIG. 7 is a bottom view of FIG. 3;

FIG. 8 is an exploded view of FIG. 3;

FIG. 9 is a partial schematic view of FIG. 3;

FIG. 10 is a schematic view of the structure of the rotating shaft in FIG. 3;

fig. 11 is a schematic structural view of the housing of fig. 3.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Shell body	23	Reset spring
101	Water inlet	24	Filter screen plate
				102	First water outlet	31	Rotary shaft
103	Second water outlet	311	Adjusting projection
				104	Second water outlet channel	312	Spacing bump
105	Limiting groove	313	Abutment projection
				21	Valve core	32	Sealing joint
211	First water outlet channel	33	Handle
				212	Adjusting plate	331	Anti-skid marking protrusion
22	Temperature sensing spring	34	Clasp ring

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

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "and/or" throughout this document includes three schemes, taking a and/or B as an example, including a technical scheme, a technical scheme B, and a technical scheme that both a and B satisfy; in addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1, 2 and 7, the present invention proposes a safety valve comprising:

the water inlet 101, the first water outlet 102 and the second water outlet 103 are arranged on the shell 10; and

the valve core 21 assembly comprises a valve core 21, a temperature sensing piece and a reset spring 23, wherein the temperature sensing piece is arranged between one end of the valve core 21 and the shell 10, the reset spring 23 is arranged between the other end of the valve core 21 and the shell 10, the temperature sensing piece is deformed by temperature change so as to change the total action of the temperature sensing piece and the reset spring 23 on the valve core 21, the blocking position of the valve core 21 is switched, the safety valve is enabled to have a first water outlet state and a second water outlet state, the valve core 21 is pushed to be blocked at the second water outlet 103 in the first water outlet state, water flowing into the water inlet 101 flows out through the first water outlet 102, and the valve core 21 is blocked at the first water outlet 102 in the second water outlet state, so that the valve core 21 is blocked at the first water outlet 102.

The safety valve of the technical scheme of the invention comprises a shell 10 and a valve core 21 assembly, wherein a water inlet 101, a first water outlet 102 and a second water outlet 103 are arranged on the shell 10, the valve core 21 assembly comprises a valve core 21, a temperature sensing piece and a return spring 23, wherein the temperature sensing piece is arranged between one end of the valve core 21 and the shell 10, the return spring 23 is arranged between the other end of the valve core 21 and the shell 10, the temperature sensing piece is deformed by temperature change so as to change the total effect of the temperature sensing piece and the return spring 23 on the valve core 21, and further the blocking position of the valve core 21 is switched, so that the safety valve has a first water outlet state and a second water outlet state, when the safety valve is in the first water outlet state, the temperature of water flowing into the water inlet 101 is smaller than the preset temperature of the temperature sensing piece, the return spring 23 pushes the valve core 21 to be blocked at the second water outlet 103, and when the water temperature of the water flowing into the water inlet 101 suddenly rises or gradually rises, the safety valve is in the second water outlet state, and at the moment, the temperature sensing piece is heated and deformed, so that the valve core 101 is pushed at the first water outlet 102 and then flows out of the second water outlet 103 through the second water outlet 103, and the preset water outlet 103 is enabled to be higher, and the user experience is high, and the user can feel that the user is scalded when the user is high, and the user is enabled to flow water temperature is set by the water outlet 103.

The preset temperature may be 35 ℃ and 40 ℃, and may be set according to the user's needs and the season changes such as summer and winter.

In this embodiment, the temperature sensing element is a temperature sensing spring 22, and in the first water outlet state, the elastic force of the temperature sensing spring 22 is smaller than the elastic force of the return spring 23; in the second water outlet state, the elastic force of the temperature sensing spring 22 is greater than the elastic force of the return spring 23; so that in the first water outlet state, the return spring 23 pushes the valve core 21 to compress the temperature sensing spring 22, and further the valve core 21 is blocked at the second water outlet 103, so that water flowing in from the water inlet 101 flows out from the first water outlet 102; when the safety valve is in the second water outlet state, the temperature sensing spring 22 pushes the valve core 21 to compress the reset spring 23, so that the valve core 21 is blocked at the first water outlet 102, and water flowing in from the water inlet 101 flows out from the second water outlet 103.

Referring to fig. 6, it can be understood that when a user needs to use water with a higher temperature to wash dishes, since the second water outlet 103 is offset from the user's setting, so that the water is inconvenient to store, in another embodiment, the safety valve further includes an adjusting component mounted on the housing 10, and the safety valve further has a third water outlet state, in which the adjusting component drives the valve core 21 to block the second water outlet 103, and the water flowing into the water inlet 101 flows out sequentially through the first water outlet channel 211 and the first water outlet 102; therefore, when the user needs to use the high-temperature water exceeding the preset temperature of the temperature sensing piece, the position of the valve core 21 is forcedly adjusted by the adjusting component, and at the moment, the common acting force of the adjusting component and the reset spring 23 is larger than the acting force of the temperature sensing piece, so that the valve core 21 is blocked at the second water outlet 103, and even if the water temperature of the water flow flowing into the water inlet 101 is higher than the preset temperature, the user can use the water, and it is required that in the third water outlet state, the water higher than the preset temperature of the temperature sensing piece and lower than the preset temperature of the temperature sensing piece can flow out through the first water outlet 102.

Referring to fig. 1, 2, 8 and 10, specifically, the housing 10 is provided with a mounting hole, the valve core 21 is provided with an adjusting plate 212, the adjusting assembly includes a rotating shaft 31, an adjusting protrusion 311 is disposed on an outer circumferential surface of the rotating shaft 31 near one end of the valve core 21, in the first water outlet state or the second water outlet state, the adjusting plate 212 and the adjusting protrusion 311 are disposed at intervals, in the third water outlet state, the rotating shaft 31 is rotated to enable the adjusting protrusion 311 to lift the adjusting plate 212, so as to drive the valve core 21 to be plugged at the second water outlet 103, and water flowing into the water inlet 101 flows out through the first water outlet channel 211 and the first water outlet 102 in sequence;

it can be understood that when the water temperature of the water flowing into the water inlet 101 is higher than the preset temperature of the temperature sensing element, but the user still needs to use the water temperature sensing element, the user forcibly moves the valve core 21 towards the direction close to the second water outlet 103 by rotating the rotating shaft 31 and through the adjusting protrusion 311 on the rotating shaft 31, and finally plugs the valve core 21 at the second water outlet 103, so that the water with the temperature greater than or equal to the preset temperature of the temperature sensing element can still flow out from the first water outlet 102.

Further, the adjusting protrusion 311 is of a cam structure, that is, the adjusting protrusion 311 is arc-shaped, and compared with the technical scheme that the adjusting protrusion 311 is directly square, the adjusting protrusion 311 is easier and more convenient for an arc-shaped user to rotate the rotating shaft 31.

In this embodiment, the adjusting assembly further includes a handle 33, the handle 33 is fixedly mounted on the rotating shaft 31, and a slip-preventing indication protrusion 331 is disposed on the handle 33; the anti-slip indicator 331 is convenient for the user to rotate when the handle 33 is rotated, and meanwhile, the anti-slip indicator 331 also has a prompting function for the user, so that the user can judge whether the provenance adjusting assembly is in an open state or a closed state by judging the position of the anti-slip indicator 331.

Referring to fig. 1, fig. 2 and fig. 11, further, the rotation shaft 31 is provided with a limiting protrusion 312, the housing 10 is provided with a limiting groove 105, the limiting groove 105 is in an arc shape, and the limiting groove 105 extends along the circumferential direction of the rotation shaft 31, and as can be understood, the rotation shaft 31 can rotate by a predetermined angle through the limiting protrusion 312 and the limiting groove 105, and further, the rotation shaft 31 is prevented from being excessively rotated, so that the adjusting protrusion 311 is prevented from being separated from the adjusting plate 212, and further, the safety valve is prevented from being switched from a third water outlet state to a first water outlet state, so that the stability and the reliability of the safety valve are improved, and the experience of a user is further improved.

Further, during installation, if the valve core 21 is installed from outside to inside, the limiting protrusion 312 will interfere with the sealing joint 32, so that the valve core 21 cannot rub against the end surface of the valve core 31 during up-and-down movement, thereby facilitating adjustment of the valve core 21 and improving stability of the safety valve.

Referring to fig. 8 and 9, therefore, in this embodiment, the adjusting assembly further includes a snap ring 34 and a sealing joint 32, the sealing joint 32 is mounted at the mounting hole, an annular abutment protrusion 313 is disposed at an end of the rotating shaft 31 away from the housing 10, the rotating shaft 31 is inserted into the sealing joint 32 from inside to outside, the snap ring 34 is clamped on the rotating shaft 31 and is located between the abutment protrusion 313 and the sealing joint 32, after the rotating shaft 31 is plugged into the sealing joint 32, the snap ring 34 is clamped between the abutment protrusion 313 and the sealing joint 32, and when the rotating shaft 31 needs to be disassembled, the snap ring 34 is removed, and then the rotating shaft 31 is pushed inwards, thereby facilitating the installation and the disassembly of the rotating shaft 31.

Specifically, the valve core 21 is a piston, a first water outlet channel 211 is formed in the piston, in the first water outlet state, the return spring 23 pushes one end of the piston to be blocked at the second water outlet 103, the water flowing into the water inlet 101 flows out through the first water outlet channel 211 and the first water outlet 102 in sequence, in the second water outlet state, the other end of the piston is blocked at the first water outlet 102, so that the valve core 21 is blocked at the first water outlet 102.

Further, the safety valve further comprises a water inlet joint connected with the water inlet pipe and a water outlet joint connected with the water outlet pipe, the water inlet joint is in sealing connection with the water inlet 101, the water inlet joint is communicated with the water inlet 101 and the first water outlet channel 211, the water outlet joint is in sealing connection with the first water outlet 102, and the water outlet joint is communicated with the first water outlet 102.

It should be noted that, the connection between the water inlet connector and the water outlet connector and the casing 10 is a sealing connection, so that the tightness of the safety valve can be ensured, and the water can flow in a predetermined direction, thereby ensuring the normal operation of the safety valve.

Referring to fig. 1 to 10, a specific movement process of the safety valve is: when the safety valve is in the first water outlet state, the temperature of water flowing into the water inlet 101 is smaller than the preset temperature of the temperature sensing spring 22, at the moment, the elastic force of the reset spring 23 is larger than the elastic force of the temperature sensing spring 22, and the piston moves towards the water inlet 101 under the action of the reset spring 23, so that the upper end of the piston is in sealed connection with the water inlet 101, and water flowing into the water inlet 101 flows out of the first water outlet channel 211 and the first water outlet 102 in sequence; when the safety valve is in the second water outlet state, the temperature of water flowing into the water inlet 101 is greater than or equal to the preset temperature of the temperature sensing spring 22, the temperature sensing spring 22 is heated and stretched, the temperature sensing spring 22 pushes the piston to move downwards, and the piston is further made to block the first water outlet 102, so that water flowing into the water inlet 101 flows out of the second water outlet channel 104 and the second water outlet 103 in sequence; when the safety valve is in the third water outlet state, no matter whether the temperature of the water flowing into the water inlet 101 is higher than the preset temperature of the temperature sensing spring 22, the adjusting plate 212 and the piston are forced to be jacked up by the adjusting protrusion 311, so that the upper end of the piston is in sealing connection with the water inlet 101, and the water flowing into the water inlet 101 flows out from the first water outlet channel 211 and the first water outlet 102 in sequence.

In this embodiment, the safety valve further includes a filter screen plate 24, a plurality of water holes are formed in the filter screen plate 24, a second water outlet channel 104 is formed by surrounding the inner wall surface of the valve core 21 and the housing 10, the filter screen plate 24 is installed in the second water outlet channel 104, and the water holes and the second water outlet channel 104 are all communicated with the second water outlet 103, and a filter screen is installed in the second water outlet channel 104, so that the flow rate of water at the second water outlet 103 is reduced, water is further caused to slowly flow out from the second water outlet 103, and excessive hot water is prevented from being sprayed out from the second water outlet 103 at a higher speed, thereby greatly reducing the possibility of scalding users.

The invention also provides a water outlet device, which comprises a safety valve, wherein the specific structure of the safety valve refers to the embodiment, and the water outlet device in the application can be a shower head, a faucet and the like.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A safety valve, comprising:

2. The safety valve according to claim 1, wherein the temperature sensing member is a temperature sensing spring, and in the first water outlet state, an elastic force of the temperature sensing spring is smaller than an elastic force of the return spring; in the second water outlet state, the elasticity of the temperature sensing spring is larger than that of the reset spring.

3. The safety valve of claim 1, further comprising an adjustment assembly mounted to the housing, the safety valve further having a third water outlet state in which the adjustment assembly drives the valve element to block the second water outlet, the water flow into the water inlet flowing out sequentially through the first water outlet channel and the first water outlet.

4. The safety valve according to claim 3, wherein the housing is provided with a mounting hole, the valve core is provided with an adjusting plate, the adjusting assembly comprises a rotating shaft, an adjusting protrusion is arranged on the outer circumferential surface of the rotating shaft, which is close to one end of the valve core, in the first water outlet state or the second water outlet state, the adjusting plate and the adjusting protrusion are arranged at intervals, in the third water outlet state, the rotating shaft is rotated, so that the adjusting protrusion is lifted up by the adjusting plate, the valve core is driven to be blocked at the second water outlet, and water flowing into the water inlet flows out through the first water outlet channel and the first water outlet in sequence.

5. The relief valve of claim 4, wherein the adjustment projection is a cam structure.

6. The safety valve of claim 4, wherein the adjustment assembly further comprises a handle fixedly mounted to the rotatable shaft, the handle having a tamper-indicating protrusion thereon.

7. The safety valve according to claim 4, wherein the rotating shaft is provided with a limit protrusion, the housing is provided with a limit groove, the limit groove is arc-shaped, and the limit groove extends along the circumferential direction of the rotating shaft.

8. The safety valve according to claim 7, wherein the adjusting assembly further comprises a snap ring and a sealing joint, the sealing joint is mounted at the mounting hole, an annular abutting protrusion is arranged at one end of the rotating shaft away from the housing, the rotating shaft is inserted into the sealing joint from inside to outside, and the snap ring is clamped on the rotating shaft and is located between the abutting protrusion and the sealing joint.

9. The safety valve according to claim 1, wherein the valve core is a piston, a first water outlet channel is formed in the piston, in the first water outlet state, the return spring pushes one end of the piston to be blocked at the second water outlet, water flowing into the water inlet flows out through the first water outlet channel and the first water outlet in sequence, and in the second water outlet state, the other end of the piston is blocked at the first water outlet, so that the valve core is blocked at the first water outlet.

10. The safety valve of claim 1, further comprising a filter screen plate, wherein a plurality of water passing holes are formed in the filter screen plate, a second water outlet channel is formed by surrounding the inner wall surface of the valve core and the shell, the filter screen plate is installed in the second water outlet channel, and the water passing holes and the second water outlet channel are both communicated with the second water outlet.

11. The safety valve of claim 1, further comprising a water inlet fitting for connection to a water inlet pipe and a water outlet fitting for connection to a water outlet pipe, the water inlet fitting being sealingly connected to the water inlet and the water inlet fitting being in communication with both the water inlet and the first water outlet passage, the water outlet fitting being sealingly connected to the first water outlet and the water outlet fitting being in communication with the first water outlet.

12. A water outlet device comprising a safety valve according to any one of claims 1 to 11.