CN116538331A - Antifreezing device and water heater using same - Google Patents

Antifreezing device and water heater using same Download PDF

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Publication number
CN116538331A
CN116538331A CN202310728412.6A CN202310728412A CN116538331A CN 116538331 A CN116538331 A CN 116538331A CN 202310728412 A CN202310728412 A CN 202310728412A CN 116538331 A CN116538331 A CN 116538331A
Authority
CN
China
Prior art keywords
cavity
valve core
locking piece
slider
sliding block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310728412.6A
Other languages
Chinese (zh)
Inventor
王世平
金晶
周高云
原世超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Fotile Kitchen Ware Co Ltd
Original Assignee
Ningbo Fotile Kitchen Ware Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Fotile Kitchen Ware Co Ltd filed Critical Ningbo Fotile Kitchen Ware Co Ltd
Priority to CN202310728412.6A priority Critical patent/CN116538331A/en
Publication of CN116538331A publication Critical patent/CN116538331A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/12—Preventing or detecting fluid leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/136—Defrosting or de-icing; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Abstract

The invention discloses an antifreezing device and a water heater using the antifreezing device, and the antifreezing device comprises a cavity, a valve core, an elastic element, a sliding block and a locking piece, wherein the locking piece is rotationally connected with a rotating shaft of the sliding block, the rotating shaft is positioned between a first end and a second end of the locking piece, a first elastic piece is arranged between the second end of the locking piece and the sliding block, and pushes the second end of the locking piece, so that the first end of the locking piece is hooked at a concave part of the valve core, a first bulge is arranged in the cavity, the first bulge is arranged close to the second end of the cavity, a first guide surface is arranged towards the first end of the cavity, and the first guide surface gradually extends towards the sliding block along the moving direction of the sliding block; when the valve core moves towards the second end of the cavity, the second end of the locking piece moves under the action of the first guide surface, and the first end of the locking piece is separated from the concave part, so that the valve core seals the cavity, and at the moment, if a pipeline in the water heater is frozen and cracked, the antifreezing device can prevent water flow from entering the water heater, and therefore loss and safety problems are avoided.

Description

Antifreezing device and water heater using same
Technical Field
The invention relates to the technical field of water inlet valves, in particular to an antifreezing device and a water heater using the antifreezing device.
Background
The water heater refers to a device which can raise the temperature of cold water to become hot water in a certain time through various physical principles. Taking a gas water heater as an example, in the use process, a water inlet pipe of the gas water heater conveys cold water into the heat exchanger, and the gas burns to heat the water in the heat exchanger and then conveys the water out through a water outlet pipe for users to use.
In cold winter, when the outdoor air temperature is low, cold air easily enters the water heater along the smoke exhaust pipe to cause water in the pipeline inside the water heater to freeze, the pipeline is easily cracked due to the size increase, and after the temperature rises, the ice in the pipeline is melted, if a user does not find to close the water inlet valve in time, the whole machine leaks water, and the bottom plate is soaked in water, and the electric leakage and other property loss and safety problems are caused.
Aiming at the situation, the existing gas water heater installed in the northern cold environment is generally additionally provided with an electric heating frost crack prevention device, and a certain frost crack prevention function is achieved. However, the electric heating frost crack prevention device must be started to work normally when the water heater is electrified, and if the power is off, for example, a user pulls out a power plug, a power failure occurs in home, and the like, the electric heating device still can not be started, and the pipeline of the water heater is cracked.
Disclosure of Invention
The invention aims to overcome the defect that water leakage is caused by frost cracking of a pipeline in a water heater at low temperature due to the fact that an electric heating device is arranged in the prior art.
The invention solves the technical problems by the following technical scheme:
an anti-freeze apparatus, the anti-freeze apparatus comprising:
the cavity is used for passing water flow;
the first end of the valve core is positioned in the cavity, the second end of the valve core is positioned outside the cavity, and the water flow passes through between the first end of the valve core and the first end of the cavity;
the elastic element is used for pushing the valve core to move towards the first end of the cavity;
the sliding block can slide from the first end of the cavity to the second end of the cavity when the valve core moves, and a rotating shaft is arranged on the periphery side of the sliding block;
the locking piece is rotationally connected with the rotating shaft, the rotating shaft is positioned between the first end and the second end of the locking piece, a first elastic piece is arranged between the second end of the locking piece and the sliding block, and the first elastic piece pushes against the second end of the locking piece, so that the first end of the locking piece is hooked at the concave part of the valve core, a first bulge is arranged in the cavity, the first bulge is close to the second end of the cavity, a first guide surface is arranged at the first end of the first bulge facing the cavity, and the first guide surface gradually extends towards the sliding block along the moving direction of the sliding block;
when the valve core moves towards the second end of the cavity, the second end of the locking piece moves under the action of the first guide surface, and the first end of the locking piece is separated from the concave position, so that the valve core seals the cavity.
In this scheme, through this kind of setting, under the normal use condition of water heater, the first end of case is in the cavity and forms the passageway with the first end of cavity, and the rivers circulate through this passageway, and the second end and the slider of case pass through the locking piece to be connected, prevent that the case from following the first end of cavity and moving and butt in the first end of cavity under the effect of elastic component, that is the first end of case is spacing by slider and locking piece and can not play the effect that separates the rivers, and rivers normally flow from the cavity this moment. When the outdoor air temperature is lower, cold air enters the water heater along the smoke exhaust pipe to cause the water in the cavity to be frozen continuously, and the volume of the frozen water is increased, so that external force is applied to the first end of the valve core to drive the valve core to move towards the second end of the valve core, and the valve core moves to drive the locking piece and the sliding block to move simultaneously. In the process, the second end of the locking piece is contacted with the first guide surface of the first bulge in the cavity, the first elastic piece is compressed under the action of the first guide surface and enabled to rotate around the rotating shaft, the first end of the locking piece is converted to the first end of the locking piece to be separated from the recess from the state of being hooked in the recess of the valve core originally, the valve core is disconnected with the sliding block, and the valve core moves along the first end of the cavity under the action of the elastic element and seals the cavity. At this time, if the pipeline in the water heater has been frozen and cracked, the anti-freezing device can prevent water flow from entering the water heater, so that the water leakage of the whole machine is avoided, and the property loss and the safety problems of bottom plate water soaking, electric leakage and the like are caused.
Further, the second end of the locking member is provided with a second guide surface which gradually extends toward the slider in the slider moving direction and which is disposed opposite to the first guide surface.
In this scheme, through this kind of setting, the second guide face sets up with first guide face relatively, and the second end of locking piece makes first bellied first guide face more smooth and easy when the second end of butt locking piece under the effect of first guide face and second guide face, and first elastic component can realize compressing smoothly and drive the first end of locking piece and revolute the rotation of rotating about the axle.
Further, a second protrusion is arranged on the sliding block corresponding to the first elastic piece, and the first elastic piece is sleeved on the outer peripheral side of the second protrusion.
In this scheme, through this kind of setting, the tip cover that first elastic component and slider are connected is located in the second arch, carries out spacingly to first elastic component through the second arch to improve the connection reliability of first elastic component and slider.
Further, the sliding block is of a cylindrical structure, a plurality of rotating shafts are arranged around the outer periphery side of the sliding block at intervals, a plurality of locking pieces are arranged corresponding to the rotating shafts, and a plurality of first elastic pieces are arranged corresponding to the locking pieces.
In this scheme, through this kind of setting, the quantity of locking piece and the quantity of pivot are provided with a plurality of so that the junction of case and slider increases, and then make the joint strength and the connection reliability increase of slider and case, and the quantity of corresponding first elastic component that is used for pushing away the second end of locking piece increases.
Further, the anti-freezing device further comprises a reset unit, the reset unit comprises a first end located in the cavity and a second end located outside the cavity, the first end of the reset unit is connected with the sliding block and moves towards the first end of the cavity under the action of the reset unit, when the reset unit moves towards the first end of the cavity, the second end of the locking piece is separated from the first protrusion, the locking piece rotates under the action of the first elastic piece, and the first end of the locking piece is hooked in the concave part of the valve core so that the cavity is opened when the reset unit moves towards the second end of the cavity.
In this scheme, through this kind of setting, reset unit's first end is connected with the slider, reset unit's second end is located the cavity and is used for operating personnel to snatch the reset, after the first end of case seals the cavity, through pushing reset unit's second end and driving reset unit's first end ejector slide and remove, make the slider when being close to the second end of case, the second end of locking piece on the slider breaks away from the extrusion of first arch, first elastic component continues ejector locking piece's second end in order to drive the locking piece and revolute the axle rotation, the corresponding rotation of first end of locking piece and collude in the concave part of case, realize the reconnection of case and slider, move reset unit towards the second end of cavity and drive the case through the slider and remove the first end of making the case open the cavity, the rivers flow in the cavity and realize the reduction of case.
Further, the reset unit comprises a second elastic piece, a third elastic piece and a handle, one end of the handle is movably connected to the outer surface of the cavity, the other end of the handle stretches into the cavity and is connected with the sliding block through the second elastic piece, a containing cavity is formed in the handle, the third elastic piece is arranged in the containing cavity, and two ends of the third elastic piece are respectively abutted to the outer surface of the cavity and the bottom of the containing cavity.
In this scheme, through this kind of setting, the third elastic component makes the handle have reciprocating motion's function, and the second elastic component makes the case flow through the cavity after the reduction and promotes the slider to have buffer function when the case removes, and be unlikely to when the case promotes the slider to remove towards the cavity second end under the rivers flow and do not ice the case the slider pushes away the first end of handle to the inner wall surface of cavity and extrudees and lead to its deformation.
Further, a first slide way and a second slide way are coaxially arranged in the cavity along the moving direction of the valve core, the second slide way is arranged in the first slide way, the valve core and the elastic element are both positioned in the first slide way, the sliding block and the locking piece are both positioned in the second slide way, and the first protrusion is arranged on the inner wall of the second slide way.
Through this kind of setting, set up elastic element and case in the first slide in this kind of setting, set up slider and locking piece in the second slide in order to avoid taking place structural interference between elastic element and slider or the locking piece, keep freeze-proof device's structural reliability.
Further, a third protrusion is arranged on the inner wall of the second slideway, and the third protrusion is close to the first end of the cavity and is arranged at intervals with the first protrusion.
In this scheme, through this kind of setting, third protruding and first protruding interval setting makes the locking piece be located all the time between third protruding and the first arch under the slider drives, avoids the locking piece to break away from and lose the function of locking case in the second slide.
Further, a mounting groove is formed in the first end of the valve core, corresponding to the side portion of the inner wall of the first slideway, and a sealing element is arranged in the mounting groove.
In this scheme, through this kind of setting, the contact portion of the first end of sealing member sealed case and the inner wall of first slide improves the leakproofness of case in order to stop the second end of rivers flow to the case.
A water heater, the water heater comprising: a water heater body; according to the antifreezing device, the water outlet of the antifreezing device is connected with the water inlet of the water heater body.
In this scheme, through this kind of setting, with foretell freeze-proof device be applied to on the water heater body, thereby the effectual defect that installs electric heater unit and can't solve the water heater pipeline completely when low temperature frost crack causes the water leakage in the water heater.
The invention has the positive progress effects that:
under the normal use condition of the water heater, the first end of the valve core is positioned in the cavity and forms a passage with the first end of the cavity, water flows through the passage, the second end of the valve core is connected with the sliding block through the locking piece, the valve core is prevented from moving along the first end of the cavity and abutting against the first end of the cavity under the action of the elastic element, namely, the first end of the valve core is limited by the sliding block and the locking piece and cannot play a role of blocking water flow, and at the moment, the water flows normally from the cavity. When the outdoor air temperature is lower, cold air enters the water heater along the smoke exhaust pipe to cause the water in the cavity to be frozen continuously, and the volume of the frozen water is increased, so that external force is applied to the first end of the valve core to drive the valve core to move towards the second end of the valve core, and the valve core moves to drive the locking piece and the sliding block to move simultaneously. In the process, the second end of the locking piece is contacted with the first guide surface of the first bulge in the cavity, the first elastic piece is compressed under the action of the first guide surface and enabled to rotate around the rotating shaft, the first end of the locking piece is converted to the first end of the locking piece to be separated from the recess from the state of being hooked in the recess of the valve core originally, the valve core is disconnected with the sliding block, and the valve core moves along the first end of the cavity under the action of the elastic element and seals the cavity. At this time, if the pipeline in the water heater has been frozen and cracked, the anti-freezing device can prevent water flow from entering the water heater, so that the water leakage of the whole machine is avoided, and the property loss and the safety problems of bottom plate water soaking, electric leakage and the like are caused.
Drawings
Fig. 1 is a schematic view showing the overall structure of an antifreeze apparatus according to embodiment 1 of the invention.
Fig. 2 is a schematic cross-sectional view showing the overall structure of the valve element in the open state in embodiment 1 of the present invention.
Fig. 3 is a schematic cross-sectional view showing the whole structure of the second end of the locking member in the contact state with the first protrusion in embodiment 1 of the present invention.
Fig. 4 is a schematic cross-sectional view showing the overall structure of the valve core in the state of being disconnected from the locking member in embodiment 1 of the present invention.
Fig. 5 is a schematic cross-sectional view showing the whole structure of the handle pushing the slider to move under the compressed state in embodiment 1 of the present invention.
Fig. 6 is a diagram showing the positional relationship between the valve core and the elastic member in embodiment 1 of the present invention.
Fig. 7 is a diagram showing a positional relationship between a slider and a locking member in embodiment 1 of the present invention.
Reference numerals illustrate:
cavity 100
Valve core 10
Recess 11
Elastic element 20
Slider 30
Support portion 31
Rotating shaft 32
Second protrusion 33
Locking member 40
Second guide surface 41
First elastic member 50
Reset unit 60
Second elastic member 61
Third elastic member 62
Handle 63
First slideway 70
Second slideway 80
Third protrusion 81
Seal 90
Extension sleeve 200
First protrusion 201
First guide surface 202
Fixing member 300
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present invention and should not be construed as limiting the invention, and all other embodiments, based on the embodiments of the present invention, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are 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 one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
The embodiment provides an antifreezing device, as shown in fig. 1, the antifreezing device 1 mainly comprises a cavity 100, an extension sleeve 200, a fixing piece 300 and a resetting unit 60, wherein the cavity 100 is of a cylindrical tubular structure and is mainly used for water flow passing, the extension sleeve 200 is of a cylindrical tubular structure, one end of the extension sleeve 200 along the axial direction of the extension sleeve is connected with the cavity 100, the extension sleeve 200 and the cavity 100 are combined to form a T-shaped structure, the fixing piece 300 is a plate, one side of the fixing piece 300 is connected with the extension sleeve 200, and the other side of the fixing piece 300 is connected with the resetting unit 60.
As shown in fig. 2, 3, 4, 5, 6 and 7, the antifreeze device further comprises a valve core 10 and an elastic element 20, the valve core 10 comprises a first end located in the cavity 100 and a second end located outside the cavity 100, the first end of the valve core 10 and the inner wall of the first end of the cavity 100 form a passage for water to pass through, the first end of the valve core 10 is used for isolating the water flow to prevent the water flow from flowing into the second end of the valve core 10, the elastic element 20 is a spring, one end of the spring is abutted against one side of the first end of the valve core 10 far away from the water flow, the other end of the spring is abutted against the inner space of the extension sleeve 200, the water flow generates pressure on the first end of the valve core 10 when flowing in the passage, the valve core 10 and the water flow are balanced under the action of the elastic element 20 so that the water flow can continuously flow through the passage, when the pressure generated by the water flow is greater than the acting force of the elastic element 20, the valve core 10 moves from the first end of the cavity 100 to the second end and into the inner space of the extension sleeve 200, and when the generated pressure is smaller than the acting force of the elastic element 20 moves from the first end of the extension sleeve 200 to the first end of the cavity 100.
The anti-freezing device further comprises a sliding block 30 arranged in the inner space of the extension sleeve 200, a first end of the sliding block 30 is arranged towards a second end of the valve core 10, a second end of the sliding block 30 is arranged towards an inner wall of the second end of the inner space of the extension sleeve 200, a supporting portion 31 is arranged on the outer periphery side of the sliding block 30 in a protruding mode, the supporting portion 31 extends along the inner wall direction of the inner space of the extension sleeve 200 and is perpendicular to the outer surface of the sliding block 30, a notch is formed in the supporting portion 31, a rotating shaft 32 is horizontally arranged in the notch, a locking piece 40 is rotatably connected to the rotating shaft 32, a connecting position of the locking piece 40 and the rotating shaft 32 is located between the first end and the second end of the locking piece 40, a first elastic piece 50 is arranged between the second end of the locking piece 40 and the outer surface of the sliding block 30, the first end of the locking piece 40 is bent, the second end of the locking piece 40 is pushed against the first elastic piece 50, the locking piece 40 rotates, the first end of the locking piece 40 is hooked at a concave portion 11 on the valve core 10, the concave portion 11 is a groove formed in the surface of the valve core 10, and the connecting position of the sliding block 30 and the valve core 10 is achieved. And, the first protrusion 201 is provided in the inner space of the extension sleeve 200 adjacent to the second end of the cavity 100, the first protrusion 201 is provided near the second end of the inner space of the extension sleeve 200 and the first protrusion 201 is provided with the first guide surface 202 toward the first end of the inner space, the first guide surface 202 is planar and gradually extends toward the slider 30 in a direction from the first end of the cavity 100 toward the second end of the inner space of the extension sleeve 200, the second end of the locking member 40 moves in a direction near the slider 30 and compresses the first elastic member 50 when contacting the first guide surface 202 of the first protrusion 201, the locking member 40 rotates and the first end of the locking member 40 is separated from the recess 11 and the valve core 10 pushes the first end of the valve core 10 to the first end of the cavity 100 under the action of the elastic member 20 to close the cavity 100, the second end of the locking member 40 maintains the locking valve core 10 when not contacting the first guide surface 202 of the first protrusion 201, that is not closing the cavity 100 when the water flow normally passes through the passage.
Referring to fig. 2 and 3, in normal use of the water heater, the first end of the valve core 10 is located in the cavity 100 and forms a passage with the first end of the cavity 100, through which water flows, and the second end of the valve core 10 is connected with the slider 30 through the locking member 40, so that the valve core 10 is prevented from moving along the first end of the cavity 100 and abutting against the first end of the cavity 100 under the action of the elastic element 20, that is, the first end of the valve core 10 is limited by the slider 30 and the locking member 40 and does not play a role of blocking water flow, and at this time, water flows through the cavity 100 normally. As shown in fig. 3, 4 and 5, when the outdoor air temperature is low, cold air enters the water heater along the smoke exhaust pipe to cause water in the cavity 100 to be frozen continuously, and the volume of the frozen water is increased, so that external force is applied to the first end of the valve core 10 to drive the valve core 10 to move towards the second end of the valve core 10, and the valve core 10 moves to drive the locking piece 40 and the sliding block 30 to move simultaneously. In this process, the second end of the locking member 40 contacts the first guide surface 202 of the first protrusion 201 in the inner space of the extension sleeve 200 adjacent to the cavity 100, and compresses the first elastic member 50 and rotates the locking member 40 about the rotation shaft 32 under the action of the first guide surface 202, the first end of the locking member 40 is converted from a state of being hooked to the recess 11 of the valve body 10 to a state that the first end of the locking member 40 is disengaged from the recess 11, the valve body 10 is disconnected from the slider 30 and the valve body 10 moves along the first end of the cavity 100 under the action of the elastic member 20 and closes the cavity 100. At this time, if the pipeline in the water heater has been frozen and cracked, the anti-freezing device can prevent water flow from entering the water heater, so that the water leakage of the whole machine is avoided, and the property loss and the safety problems of bottom plate water soaking, electric leakage and the like are caused.
Further, as shown in fig. 2, the second end of the locking member 40 is provided with a second guide surface 41, the second guide surface 41 gradually extends toward the slider 30 from the first end of the cavity 100 toward the second end thereof along the slider 30, and the second guide surface 41 is disposed opposite to the first guide surface 202 along the moving direction of the slider 30.
Specifically, the second guide surface 41 is a plane and gradually extends from the first end of the cavity 100 to the slider 30, by arranging the second guide surface 41 opposite to the first guide surface 202, when the second end of the locking member 40 contacts the first protrusion 201, the first guide surface 202 of the first protrusion 201 is smoother when abutting against the second end of the locking member 40 under the action of the first guide surface 202 and the second guide surface 41, the locking member 40 rotates correspondingly around the rotating shaft 32, and the second end of the locking member 40 is close to the outer surface of the slider 30 and the first elastic member 50 can smoothly compress and drive the first end of the locking member 40 to rotate around the rotating shaft 32, so as to release the first end of the locking member 40 from the recess 11.
In other embodiments, the first guiding surface 202 and the second guiding surface 41 may be curved surfaces or other structures used for guiding in the prior art, and the purpose of the guiding surface is to smoothly achieve the state that the first protrusion 201 abuts against the second end of the locking member 40 and compresses the first elastic member 50 during the sliding process of the slider 30, so that the first end of the locking member 40 is smoothly disengaged from the recess 11.
In this embodiment, the slider 30 is provided with a second protrusion 33 corresponding to the first elastic member 50, the second protrusion 33 is in a cylindrical structure and extends outwards from the outer surface of the slider 30, the first elastic member 50 is sleeved on the outer peripheral side of the second protrusion 33, and the connection position between the first elastic member 50 and the slider 30 is limited by the second protrusion 33, so as to improve the connection reliability of the first elastic member 50 and the slider 30.
In addition, in the present embodiment, the second end of the locking member 40 is also provided with a protrusion, which is used for corresponding to the second protrusion 33 and the first elastic member 50 is sleeved on the protrusion, so as to increase the connection reliability between the first elastic member 50 and the locking member 40, which is the prior art and is not repeated herein.
As shown in fig. 6, in the present embodiment, the slider 30 has a cylindrical structure and has an opening, and the opening is disposed towards the second end of the valve core 10, so that the second end of the valve core 10 can extend into the opening when the valve core 10 moves from the first end to the second end of the cavity 100, thereby reducing the moving distance of the slider 30 and the size of the extension sleeve 200, reducing the manufacturing cost of the anti-freezing device and improving the space utilization rate thereof. The support portion 31 on the slider 30 is provided with a plurality of notches, each notch is internally provided with a rotating shaft 32 correspondingly, each notch is provided with a plurality of locking pieces 40 correspondingly, and correspondingly, the first elastic pieces 50 for pushing the second ends of the locking pieces 40 are provided with a plurality of first elastic pieces, the number of the locking pieces 40 and the rotating shafts 32 is increased on the slider 30, so that the connection position between the valve core 10 and the slider 30 is increased, the connection strength and the connection reliability of the slider 30 and the valve core 10 are further increased, and the case that the valve core 10 accidentally closes the cavity 100 under the condition that the single locking piece 40 accidentally breaks away due to the hooking of the single locking piece 40 and the valve core is avoided when water flows normally is avoided.
As shown in fig. 5, in this embodiment, the reset unit 60 is movably connected to the extension sleeve 200, and the first end of the reset unit 60 is located in the inner space of the extension sleeve 200, the second end of the reset unit 60 is located at the outer peripheral side of the extension sleeve 200, where the first end of the reset unit 60 is connected to the slider 30, after the first end of the valve core 10 seals the cavity 100, after an operator holds the second end of the reset unit 60 and pushes the reset unit 60 along the first end of the cavity 100, so that the slider 30 moves along the first end direction of the cavity 100, when the reset unit 60 pushes the slider 30 to move toward the first end of the cavity 100, the second end of the locking member 40 is separated from the first protrusion 201, at this time, the first elastic member 50 rebounds and pushes the locking member 40 to rotate, the first end of the locking member 40 is hooked at the recess 11 of the valve core 10, so that the slider 30 and the valve core 10 are reconnected after the valve core 10 seals the cavity 100, and when the operator holds the second end of the reset unit 60 and pulls the reset unit 60 along the second end of the cavity 100, the slider 30 moves along the second end direction of the cavity 100, so that the reset unit 60 can open the normal flow path of the valve core 10.
Further, the resetting unit 60 includes a second elastic member 61, a third elastic member 62 and a handle 63, where the handle 63 is movably connected to the outer surface of the extension sleeve 200 adjacent to the cavity 100, the extension sleeve 200 passes through the fixing member 300 to close the inner space thereof, a through hole is formed in the fixing member 300, a first end of the handle 63 extends into the through hole and is connected with the slider 30 through the second elastic member 61, the handle 63 is in a cylindrical structure and has an accommodating cavity therein, a limit part is disposed at an end of the handle 63 extending into the through hole, and the handle 63 is prevented from separating from the fixing member 300 by the limit part, thereby improving the repeated use rate of the resetting unit 60. The third elastic member 62 is disposed in the accommodating cavity, and two ends of the third elastic member 62 are respectively abutted against the outer surface of the fixing member 300 and the bottom of the accommodating cavity.
Specifically, the end of the handle 63 located in the inner space of the extension sleeve 200 extends along the surface of the fixing member 300 and is provided with a protrusion for limiting the displacement of the second elastic member 61, the second end of the slider 30 is correspondingly provided with a groove, the connection reliability of the second elastic member 61 is improved under the combined action of the groove and the protrusion for limiting the displacement of the second elastic member 61, the second elastic member 61 enables the slider 30 to have a buffering function when the valve core 10 moves through the cavity 100 after reset and pushes the valve core 10, and the slider 30 pushes the first end of the handle 63 to the surface of the fixing member 300 and presses the fixing member 300 to deform when the valve core 10 pushes the slider 30 to move toward the fixing member 300 under the condition that the water flows and ice is not formed. In addition, the handle 63 has a reciprocating function through the third elastic member 62, so that the reset unit 60 can be restored to the initial state after resetting the valve core 10 so as to continue resetting next time, the reuse rate of the reset unit 60 is improved, and the manufacturing cost is saved.
As shown in fig. 2, 3, 4 and 5, a first slide 70 and a second slide 80 are coaxially disposed in the inner space adjacent to the extension sleeve 200 along the moving direction of the valve core 10, the first slide 70 is an inner wall of the inner space, and is in a cylindrical structure, the second slide 80 is also in a cylindrical structure and is coaxially disposed with the first slide 70, the second slide 80 is disposed in the first slide 70, the second slide 80 extends from the surface of the fixing member 300 along the first end of the cavity 100, the first protrusion 201 is disposed on the inner wall of the second slide 80 facing the slide 30, the valve core 10 and the elastic element 20 are both disposed in the first slide 70, the slide 30 and the locking member 40 are both disposed in the second slide 80, and by disposing the elastic element 20 and the valve core 10 in the first slide 70, the slide 30 and the locking member 40 are disposed in the second slide 80 to avoid structural interference between the elastic element 20 and the slide 30 or the locking member 40, and the structural reliability of the antifreeze device is maintained.
Further, a third protrusion 81 is disposed on the inner wall of the second slideway 80, and the third protrusion 81 is disposed near the first end of the cavity 100 and is spaced from the first protrusion 201.
Specifically, the third protrusion 81 extends toward the slider 30 along the inner wall of the second slide 80, and the end of the third protrusion 81 toward the slider 30 is rectangular in structure, and in addition, the end of the third protrusion 81 of the rectangular structure can function to block the movement of the locking member 40. Under normal use conditions of the water heater, the locking piece 40 is located between the first protrusion 201 and the third protrusion 81, and the movement range of the locking piece 40 in the second slideway 80 is limited by the third protrusion 81, so that the locking piece 40 is prevented from being separated from the second slideway 80 and the function of the locking valve core 10 is lost.
As shown in fig. 6, the side portion of the first end of the valve core 10 corresponding to the inner wall of the first slide way 70 is provided with a mounting groove, a sealing member 90 is disposed in the mounting groove, the sealing member 90 is an annular sealing ring, and the sealing member is made of rubber in the prior art, however, in other embodiments, other materials for sealing water flow may be used, and the purpose of the sealing member is to improve the sealing performance of the contact portion between the valve core 10 and the inner wall of the first slide way 70 and prevent the water flow from flowing to the second end of the valve core 10.
The embodiment also provides a water heater, which comprises: the water heater body and the antifreezing device mentioned in the embodiment, the water outlet of the antifreezing device is connected with the water inlet of the water heater body.
Specifically, under the normal use condition of the water heater, the water flow flows through the passage to the water outlet and further flows to the water inlet of the water heater body, at this time, the water flow pressure between the first end of the valve core 10 and the first end of the cavity 100 in the anti-freezing device is equal to the pressure of the elastic element 20 pushing against the valve core 10, the locking member 40 is located between the first protrusion 201 and the third protrusion 81, and the cavity 100 is kept open to enable the water flow to pass smoothly.
When the outdoor air temperature is lower, cold air enters the water heater along the smoke exhaust pipe to cause the water in the cavity 100 to be frozen continuously, the volume of the frozen water is increased, the water flow pressure between the first end of the valve core 10 and the first end of the cavity 100 is larger than the pressure of the elastic element 20 pushing the valve core 10, the water flow pushes the valve core 10 to move along the second end of the cavity 100 and the elastic element 20 is extruded to compress, the valve core 10 moves to drive the locking piece 40 of the sliding block 30 connected with the valve core to move, the locking piece 40 presses the second end of the locking piece 40 when contacting with the first protrusion 201, the locking piece 40 rotates and enables the first end of the locking piece 40 to be separated from the recess 11, the valve core 10 is unlocked at the moment and moves towards the first end of the cavity 100 under the action of the elastic element 20, so that the cavity 100 is closed, and when the outdoor air temperature is increased or other causes ice to melt, the sliding block 30 is pushed by the resetting unit 60 and the locking piece 40 is separated from the extrusion of the first protrusion 201, the locking piece 40 rotates and correspondingly hooks the recess 11, the water heater can not be opened by the water heater, and the water heater can not be completely overcome by the water heater device when the water heater is completely installed in the water heater due to the fact that the water heater is completely.
While specific embodiments of the invention 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 invention 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 invention, but such changes and modifications fall within the scope of the invention.

Claims (10)

1. An anti-freeze apparatus, characterized in that the anti-freeze apparatus comprises:
the cavity is used for passing water flow;
the first end of the valve core is positioned in the cavity, the second end of the valve core is positioned outside the cavity, and the water flow passes through between the first end of the valve core and the first end of the cavity;
the elastic element is used for pushing the valve core to move towards the first end of the cavity;
the sliding block can slide from the first end of the cavity to the second end of the cavity when the valve core moves, and a rotating shaft is arranged on the periphery side of the sliding block;
the locking piece is rotationally connected with the rotating shaft, the rotating shaft is positioned between the first end and the second end of the locking piece, a first elastic piece is arranged between the second end of the locking piece and the sliding block, and the first elastic piece pushes against the second end of the locking piece, so that the first end of the locking piece is hooked at the concave part of the valve core, a first bulge is arranged in the cavity, the first bulge is close to the second end of the cavity, a first guide surface is arranged at the first end of the first bulge facing the cavity, and the first guide surface gradually extends towards the sliding block along the moving direction of the sliding block;
when the valve core moves towards the second end of the cavity, the second end of the locking piece moves under the action of the first guide surface, and the first end of the locking piece is separated from the concave position, so that the valve core seals the cavity.
2. The antifreeze apparatus of claim 1, wherein a second end of said lock member is provided with a second guide surface which gradually extends toward said slider in a direction of movement of said slider and which is disposed opposite to said first guide surface.
3. The antifreeze apparatus of claim 1, wherein said slider is provided with a second projection corresponding to said first elastic member, said first elastic member being fitted around an outer peripheral side of said second projection.
4. The antifreeze apparatus according to claim 1, wherein said slider has a cylindrical structure, said rotary shaft is provided in plural at intervals around an outer peripheral side of said slider, said locking member is provided in plural corresponding to said rotary shaft, and said first elastic member is provided in plural corresponding to said locking member.
5. The antifreeze apparatus of claim 1, further comprising a reset unit, said reset unit comprising a first end positioned within said cavity and a second end positioned outside said cavity, said first end of said reset unit being coupled to said slider and moving toward said first end of said cavity under the influence of said reset unit, said second end of said locking member being disengaged from said first protrusion when said reset unit moves toward said first end of said cavity, said locking member being rotated by said first resilient member, said first end of said locking member being hooked in said recess of said valve element such that said reset unit opens said cavity when said reset unit moves toward said second end of said cavity.
6. The antifreeze apparatus of claim 5, wherein said reset unit comprises a second elastic member, a third elastic member and a handle, wherein one end of said handle is movably connected to the outer surface of said cavity, the other end of said handle extends into said cavity and is connected to said slider via said second elastic member, a holding cavity is provided in said handle, said third elastic member is disposed in said holding cavity, and two ends of said third elastic member are respectively abutted to the outer surface of said cavity and the bottom of said holding cavity.
7. The antifreeze apparatus of claim 1, wherein a first slide and a second slide are coaxially disposed in said cavity along a direction of movement of said valve element, said second slide is disposed in said first slide, said valve element and said elastic element are both disposed in said first slide, said slider and said locking element are both disposed in said second slide, and said first protrusion is disposed on an inner wall of said second slide.
8. The antifreeze of claim 7, wherein a third protrusion is disposed on an inner wall of said second runner, said third protrusion being disposed adjacent to said first end of said cavity and spaced from said first protrusion.
9. The antifreeze of claim 7, wherein the first end of said spool has a mounting groove in a side portion corresponding to the inner wall of said first runner, said mounting groove having a seal disposed therein.
10. A water heater, the water heater comprising:
a water heater body;
the anti-freeze apparatus of any one of claims 1-9, a water outlet of the anti-freeze apparatus being connected to a water inlet of the water heater body.
CN202310728412.6A 2023-06-19 2023-06-19 Antifreezing device and water heater using same Pending CN116538331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310728412.6A CN116538331A (en) 2023-06-19 2023-06-19 Antifreezing device and water heater using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310728412.6A CN116538331A (en) 2023-06-19 2023-06-19 Antifreezing device and water heater using same

Publications (1)

Publication Number Publication Date
CN116538331A true CN116538331A (en) 2023-08-04

Family

ID=87457981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310728412.6A Pending CN116538331A (en) 2023-06-19 2023-06-19 Antifreezing device and water heater using same

Country Status (1)

Country Link
CN (1) CN116538331A (en)

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