CN114811145B - Prevent frostbite and split valve body and contain its gas heater - Google Patents
Prevent frostbite and split valve body and contain its gas heater Download PDFInfo
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- CN114811145B CN114811145B CN202210458463.7A CN202210458463A CN114811145B CN 114811145 B CN114811145 B CN 114811145B CN 202210458463 A CN202210458463 A CN 202210458463A CN 114811145 B CN114811145 B CN 114811145B
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- 208000001034 Frostbite Diseases 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 25
- 230000002265 prevention Effects 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000002791 soaking Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000013459 approach Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000009916 joint effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- 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
- F16K27/00—Construction of housing; Use of materials therefor
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention discloses an anti-frost-crack valve body and a gas water heater comprising the same. When the temperature is reduced under the condition that the power is off and the water is not cut off, the driving mechanism enables the first pipe fitting and the second pipe fitting to be relatively far away, so that the space of a water flow channel between the first pipe fitting and the second pipe fitting is enlarged, once water is frozen, the enlarged volume of the water after being frozen is released, the whole water flow channel is prevented from being swelled or frozen, and the situations of property loss such as water leakage of a whole machine, water soaking of a floor, electric leakage and the like and safety hazards are avoided.
Description
Technical Field
The invention relates to an anti-frost-crack valve body and a gas water heater comprising the same.
Background
In winter, cold air comes to cause the extremely rapid temperature drop, water in a water channel of the gas water heater is frozen due to low temperature, ice blocks expand outwards, the pipeline is easily damaged, and the gas water heater is easy to crack. At present, a gas water heater in the market mainly uses an anti-freezing heating block for preventing freezing, the anti-freezing heating block can only play a role under the condition of electrifying, and the anti-freezing heating block can not play an effective role under the condition of cutting off power and gas and not cutting off water, so that a pipeline in the gas water heater is frozen and cracked, if a water inlet valve is not found and closed in time, water leakage of the whole gas water heater can be caused, property loss such as water soaking on a floor, electric leakage and the like and the problem of safety hazard can be caused.
Disclosure of Invention
The invention aims to overcome the defect that pipelines in a gas water heater are easy to freeze and crack under the condition of power failure in the prior art, and provides an anti-freeze-crack valve body and a gas water heater comprising the same.
The invention solves the technical problems through the following technical scheme:
the invention provides an anti-frost-crack valve body, which comprises:
a first pipe member;
a second tube in communication with the first tube;
the driving mechanism is provided with a first state and a second state, and in the process of reducing the temperature from the first temperature to the second temperature, the driving mechanism is switched from the first state to the second state, so that the first pipe fitting and the second pipe fitting can be relatively far away under the action of external force, and the space of a water flow channel between the first pipe fitting and the second pipe fitting is enlarged.
In this scheme, adopt above-mentioned structural style, under the condition of the uninterrupted water of outage, when the temperature drops to the second temperature, actuating mechanism makes first pipe fitting and second pipe fitting keep away from relatively, make the rivers passageway space grow between first pipe fitting and the second pipe fitting, in case water forms ice, the volume of grow can release behind the water formation ice, thereby prevent that whole rivers passageway from being risen and split or frost crack, and then reduce or avoid appearing the complete machine and leak, the floor bubble water, loss of property such as electric leakage and the condition of endangering safety.
Preferably, the driving mechanism comprises a clamping piece connected with the first pipe fitting, and when the driving mechanism is in the first state, the clamping piece is clamped with the second pipe fitting so that the second pipe fitting and the first pipe fitting are relatively fixed; when the driving mechanism is in the second state, the clamping relation is released by the clamping piece and the second pipe fitting, so that the second pipe fitting and the first pipe fitting are relatively far away or close to each other.
In this scheme, adopt above-mentioned structural style, realize the relatively fixed between second pipe fitting and the first pipe fitting and break away from through the cooperation between joint spare and the second pipe fitting, be convenient for control the relative position between first pipe fitting and the second pipe fitting.
Preferably, the clamping piece is arranged in the second pipe fitting.
In this scheme, adopt above-mentioned structural style, spatial layout is reasonable for prevent frostbite and split valve body compact structure.
Preferably, the end part of one end of the first pipe fitting, which is far away from the second pipe fitting, is provided with a leather membrane, and the clamping piece is connected with the leather membrane through a connecting rod.
In this scheme, adopt above-mentioned structural style, under the circumstances of leading to water in the rivers passageway, because hydraulic effect, the involucra can form a pulling force to the direction of keeping away from the second pipe fitting, and then carries on spacingly to the joint spare, avoids the joint spare to rock to strengthen the joint effect between joint spare and the second pipe fitting, prevent that the joint spare from breaking away from the second pipe fitting.
Preferably, the anti-frost-cracking valve body comprises a resetting piece, and the resetting piece enables the first pipe fitting and the second pipe fitting to approach each other and return to an initial relative position in the process of increasing from the second temperature to the first temperature.
In this scheme, adopt above-mentioned structural style, in the process of rising to first temperature from the second temperature, the piece that resets makes the movable passageway volume between first pipe fitting and the second pipe fitting diminish and get back to initial condition to realize automatic re-setting.
Preferably, the piece that resets includes first scalable driving piece, first scalable driving piece is located in the second pipe fitting, the both ends of first scalable driving piece butt respectively the joint piece with the second pipe fitting, follow the second temperature rises to the in-process of first temperature, first scalable driving piece is through extending in order to realize first pipe fitting with the relative motion of second pipe fitting.
In this scheme, adopt above-mentioned structural style, first scalable driving piece is through stretching in order to realize the relative motion of first pipe fitting and second pipe fitting for first pipe fitting and second pipe fitting return to initial relative position in order to realize reseing.
Preferably, the first retractable driving member is a first memory alloy elastic member.
In this scheme, adopt above-mentioned structural style, need not through electric drive, adopt mechanical structure, it is adjustable according to the change of temperature to realize the rivers passageway between first pipe fitting and the second pipe fitting, and the good reliability can play effectual protection during the outage.
Preferably, the clamping piece comprises a sleeve and a clamping rod, the clamping rod is arranged in the sleeve, a through hole is formed in the side wall of the sleeve, and the clamping rod can penetrate through the through hole and is clamped with the second pipe fitting.
In this scheme, adopt above-mentioned structural style, the joint pole is arranged in the sleeve, reduces rivers and to the erodeing of joint pole, and then reduces the wearing and tearing that the joint pole received, prolongs the life of joint pole. The through hole that sets up on the sleeve for the joint pole can with second pipe fitting joint.
Preferably, the joint spare still include with the scalable driving piece of second that the joint pole is connected the in-process of switching between the first temperature with the second temperature, the scalable driving piece of second drives through flexible the joint pole is followed the through-hole removes.
In this scheme, adopt above-mentioned structural style, the scalable driving piece of second changes its flexible volume according to the change of temperature to drive the joint pole and move to the direction of keeping away from or being close to the second pipe fitting, thereby the joint relation between control card pole and the second pipe fitting, the automated control of being convenient for, easy management.
Preferably, the joint pole includes first member and the second member of cross fixation, but the second telescopic driving piece cover is located the periphery side of first member, just but the both ends of second telescopic driving piece butt respectively the second member with the sleeve inner wall, in order to drive first member moves along its extending direction.
In this scheme, adopt above-mentioned structural style, because first member and second member cross fixation, the flexible in-process that promotes the second member and remove of second scalable driving piece can promote first member to keeping away from or being close to the direction removal with the inner wall of the scalable driving piece butt of second in the sleeve to realize the cooperation between joint pole and the second pipe fitting, spatial layout is reasonable, compact, and simple structure, the processing of being convenient for.
Preferably, the second retractable driving member is a second memory alloy elastic member.
In the scheme, by adopting the structural form, in the process of reducing the first temperature to the second temperature, the second memory alloy elastic piece contracts to drive the first rod piece to move towards the direction far away from the second pipe piece; from the second temperature rise to first temperature, the extension of second memory alloy elastic component promotes first member and removes to the direction that is close to the second pipe fitting, need not through electric drive, adopts mechanical structure, realizes the joint between joint spare and the second pipe fitting and removes the joint relation, and good reliability can play effectual protection during the outage.
Preferably, the inner wall of the second pipe fitting is provided with a groove for matching and clamping with the clamping piece.
In this scheme, adopt above-mentioned structural style, the processing of being convenient for, and form the joint relation through the cooperation between joint spare and the recess, the joint effect is stable.
Preferably, the second pipe fitting is partially arranged in the first pipe fitting, a water inlet is formed in the side wall of the first pipe fitting, the water inlet is located in a non-overlapping area between the first pipe fitting and the second pipe fitting, and a sealing ring is arranged between the inner wall of the first pipe fitting and the outer wall of the second pipe fitting.
In this scheme, adopt above-mentioned structural style, prevent that rivers from flowing out from the gap between the inner wall of first pipe fitting and the outer wall of second pipe fitting for prevent frostbite and split the valve body leakproofness good.
The invention also provides a gas water heater, which comprises the anti-frost-crack valve body.
Preferably, the frost crack prevention valve body is connected to a water inlet pipeline, a water outlet is formed in one end, far away from the first pipe fitting, of the second pipe fitting, and a movable connecting pipe is installed between the water outlet and the water inlet pipeline.
In this scheme, adopt above-mentioned structural style, because the second pipe fitting can be to the direction of keeping away from or being close to first pipe fitting and remove, the portable setting of second pipe fitting, the one end of keeping away from first pipe fitting on the second pipe fitting passes through swing joint union coupling with the inlet channel, reduce or avoid appearing the inlet channel and need move about along with the removal of second pipe fitting to the phenomenon that leads to the damage, also need not to consider the inlet channel and reserve bigger assembly space, compact structure under the circumstances that needs its activity.
The positive progress effects of the invention are as follows:
when the water temperature is reduced to the second temperature under the condition that the power is off and the water is not cut off, the driving mechanism enables the first pipe fitting and the second pipe fitting to be relatively far away, so that the space of a water flow channel between the first pipe fitting and the second pipe fitting is enlarged, once the water is frozen, the enlarged volume of the water after being frozen is released, the whole water flow channel is prevented from being expanded or frozen, and the situations of property loss and safety hazard of whole machine water leakage, floor water soaking, electric leakage and the like are reduced or avoided.
Drawings
Fig. 1 is a schematic structural diagram of a driving mechanism in a frost crack prevention valve body according to a preferred embodiment of the present invention in a first state.
Fig. 2 is an enlarged view of a point a in fig. 1.
Fig. 3 is a structural diagram of the anti-frost crack valve body according to the preferred embodiment of the invention, in which the driving mechanism is in the second state.
Fig. 4 is an enlarged view at B in fig. 3.
Fig. 5 is a schematic view of the installation of the frost crack prevention valve body in the gas water heater according to the preferred embodiment of the present invention.
Description of reference numerals:
Connecting rod 12
Water inlet 13
Second pipe fitting 2
Sleeve 311
Through hole 3111
Clamping rod 312
Second telescopic drive 313
First telescopic drive member 41
Moveable connecting pipe 7
Detailed Description
The present invention is further illustrated by the following examples, but is not limited thereby within the scope of the examples which follow.
An embodiment of the present invention provides an anti-frost-crack valve body, please refer to fig. 1 to 5. The valve body that prevents frostbite and split includes first pipe fitting 1, second pipe fitting 2 and actuating mechanism 3, first pipe fitting 1 and second pipe fitting 2 intercommunication, actuating mechanism 3 has first state and second state, from the in-process that first temperature falls to the second temperature, actuating mechanism 3 switches over to the second state from the first state for first pipe fitting 1 and second pipe fitting 2 can be kept away from relatively under the exogenic action, in order to realize the space grow of the rivers passageway between first pipe fitting 1 and the second pipe fitting 2. Wherein the first temperature is that the temperature of water is above 0 ℃, and the second temperature is that the temperature of water is below 0 ℃. The temperature is at a first temperature, the driving mechanism 3 is in a first state, and the relative position between the first pipe fitting 1 and the second pipe fitting 2 is shown in fig. 1; from the first temperature to the second temperature, the drive mechanism 3 is switched to the second state, the relative position between the first and second pipe members 1, 2 being as shown in fig. 3. It can be seen that, in the process of reducing the first temperature to the second temperature, the second pipe member 2 and the first pipe member 1 are away from each other, so that the water flow channel between the first pipe member 1 and the second pipe member 2 forms a movable channel, and the space of the movable channel is enlarged.
In this embodiment, under the condition of the uninterrupted water of outage, when the temperature drops to the second temperature, actuating mechanism 3 makes first pipe fitting 1 and second pipe fitting 2 keep away from relatively, make the rivers passageway space grow between first pipe fitting 1 and the second pipe fitting 2, in case water forms ice, the volume of grow can release after water forms ice, thereby prevent that whole rivers passageway from being risen and split or frost crack, and then reduce or avoid appearing the complete machine and leak, the floor bubble water, loss of property such as electric leakage and the condition of endangering safety.
The driving mechanism 3 comprises a clamping piece 31 connected with the first pipe fitting 1, and when the driving mechanism 3 is in a first state, the clamping piece 31 is clamped with the second pipe fitting 2 so that the second pipe fitting 2 and the first pipe fitting 1 are relatively fixed; when the driving mechanism 3 is in the second state, the clamping member 31 and the second pipe fitting 2 are released from the clamping relationship, so that the second pipe fitting 2 and the first pipe fitting 1 are relatively far away or close to each other. The relative fixation and the separation between the second pipe fitting 2 and the first pipe fitting 1 are realized through the matching between the clamping piece 31 and the second pipe fitting 2, and the relative position between the first pipe fitting 1 and the second pipe fitting 2 is convenient to control.
In this embodiment, joint spare 31 is located in second pipe fitting 2, and spatial layout is reasonable for prevent frostbite and split valve body compact structure. The involucra 11 is installed to the one end tip of keeping away from second pipe fitting 2 on the first pipe fitting 1, and joint 31 passes through connecting rod 12 and is connected with involucra 11. Under the circumstances of leading to water in the rivers passageway, because hydraulic effect, involucra 11 can form a pulling force to the direction of keeping away from second pipe fitting 2, and then carry on spacingly to joint piece 31, avoid joint piece 31 to rock to strengthen the joint effect between joint piece 31 and the second pipe fitting 2, prevent that joint piece 31 from breaking away from second pipe fitting 2.
In the embodiment, the frost crack prevention valve body comprises a resetting piece 4, and the resetting piece 4 enables the first pipe fitting 1 and the second pipe fitting 2 to approach each other and return to the initial relative position in the process of increasing from the second temperature to the first temperature. In the process of increasing from the second temperature to the first temperature, the reset piece 4 enables the movable passage between the first pipe fitting 1 and the second pipe fitting 2 to be reduced in volume and return to the initial state, so that automatic reset is realized.
In other embodiments, the frost crack prevention valve body comprises a first pipe fitting 1, a second pipe fitting 2, a driving mechanism 3 and a resetting piece 4, wherein the first pipe fitting 1 is communicated with the second pipe fitting 2, the driving mechanism 3 has a first state and a second state, and in the process of reducing the first temperature to the second temperature, the driving mechanism 3 is switched from the first state to the second state, so that the first pipe fitting 1 and the second pipe fitting 2 can be relatively far away under the action of external force, and the space of a water flow channel between the first pipe fitting 1 and the second pipe fitting 2 is enlarged; during the process of increasing from the second temperature to the first temperature, the restoring member 4 makes the first and second pipe members 1 and 2 approach each other and return to the initial relative positions.
The first retractable driving member 41 is a first memory alloy elastic member. The first memory alloy elastic part changes the self expansion amount along with the change of temperature, the temperature rises, the elasticity is increased, and the first memory alloy elastic part stretches; the temperature is reduced, the elasticity is reduced, and the first memory alloy elastic piece contracts. In the process of reducing the temperature from the first temperature to the second temperature, the clamping relation between the clamping piece 31 and the second pipe fitting 2 is released, the size of the water icing process is increased to push the first pipe fitting 1 and the second pipe fitting 2 to be relatively far away, a space for the movable water flow channel after the water icing is reserved, the space for the water icing is released, and at the moment, the first memory alloy elastic piece contracts without interfering the relative movement of the first pipe fitting 1 and the second pipe fitting 2; from the second temperature to the first temperature, the first memory alloy elastic member is elongated, so that the first pipe member 1 and the second pipe member 2 are brought close to each other to return to the initial relative positions to achieve the restoration. The frost crack prevention valve body of this embodiment need not through electric drive, adopts mechanical structure, realizes that the rivers passageway between first pipe fitting 1 and the second pipe fitting 2 is adjustable according to the change of temperature, and the good reliability can play effectual protection during the outage. Preferably, the first retractable driving member 41 is a memory alloy spring, so that the processing is convenient and the retractable performance is good.
As shown in fig. 2 and 4, in this embodiment, the clamping member 31 includes a sleeve 311 and a clamping rod 312, the clamping rod 312 is disposed in the sleeve 311, a through hole 3111 is formed in a side wall of the sleeve 311, and the clamping rod 312 can pass through the through hole 3111 and be clamped with the second pipe 2. The clamping rod 312 is arranged in the sleeve 311, so that the flushing of water flow to the clamping rod 312 is reduced, the abrasion of the clamping rod 312 is further reduced, and the service life of the clamping rod 312 is prolonged. The sleeve 311 is provided with a through hole 3111, so that the clamping rod 312 can be clamped with the second pipe 2.
The clamping member 31 further includes a second retractable driving member 313 connected to the clamping rod 312, and the second retractable driving member 313 drives the clamping rod 312 to move along the through hole 3111 by means of a retractable movement during switching between the first temperature and the second temperature. In the process of reducing the temperature from the first temperature to the second temperature, the second telescopic driving member 313 is affected by the temperature, and the telescopic amount of the second telescopic driving member is changed to drive the clamping rod 312 connected with the second telescopic driving member to pass through the through hole 3111 and extend out of the sleeve 311 to realize clamping with the second pipe fitting 2, so that the first pipe fitting 1 and the second pipe fitting 2 are relatively fixed; in the process of increasing from the second temperature to the first temperature, the second retractable driving member 313 is affected by the temperature, and the amount of retraction thereof changes to drive the clamping rod 312 connected thereto to be away from the second pipe 2, so that the second pipe 2 and the clamping member 31 can move relatively, that is, the second pipe 2 and the first pipe 1 can move relatively. The second telescopic driving member 313 changes the telescopic amount thereof according to the change of the temperature, so as to drive the clamping rod 312 to move towards the direction far away from or close to the second pipe fitting 2, thereby controlling the clamping relation between the clamping rod 312 and the second pipe fitting 2, facilitating automatic control and easy management.
The clamping rod 312 includes a first rod 3121 and a second rod 3122 fixed in a crossed manner, the second retractable driving member 313 is sleeved on the outer peripheral side of the first rod 3121, and two ends of the second retractable driving member 313 respectively abut against the second rod 3122 and the inner wall of the sleeve 311 to drive the first rod 3121 to move along the extending direction thereof. Because first member 3121 and second member 3122 are fixed alternately, the flexible in-process that promotes second member 3122 and move of second scalable driving piece 313 can promote first member 3121 to keeping away from or being close to the direction removal of the inner wall with the butt of second scalable driving piece 313 in the sleeve 311 to realize the cooperation between joint pole 312 and the second pipe fitting 2, and spatial layout is reasonable, compact, and simple structure, the processing of being convenient for.
Specifically, the first bar 3121 and the second bar 3122 are perpendicular to each other, and the longitudinal direction of the first bar 3121 is aligned with the axial direction of the through hole 3111, and the first bar 3121 is less likely to be blocked when passing through the through hole 3111.
The second retractable driving member 313 is a second memory alloy elastic member. In the process of reducing the temperature from the first temperature to the second temperature, the second memory alloy elastic piece contracts to drive the first rod piece 3121 to move towards the direction far away from the second pipe fitting 2; from the second temperature rise to first temperature, second memory alloy elastic component extension promotes first member 3121 and removes to the direction that is close to second pipe fitting 2, need not through electric drive, adopts mechanical structure, realizes the joint between joint spare 31 and the second pipe fitting 2 and removes the joint relation, and good reliability can play effectual protection during the outage. Preferably, the second retractable driving member 313 is a memory alloy spring, which is convenient to process and has good retractable performance. The first and second memory alloy elastic members may be made of the same material.
The second pipe fitting 2 is partially arranged in the first pipe fitting 1, a water inlet 13 is formed in the side wall of the first pipe fitting 1, the water inlet 13 is located in a non-overlapping area between the first pipe fitting 1 and the second pipe fitting 2, and a sealing ring 5 is arranged between the inner wall of the first pipe fitting 1 and the outer wall of the second pipe fitting 2. The setting of sealing washer 5 prevents that rivers from flowing out from the gap between the inner wall of first pipe fitting 1 and the outer wall of second pipe fitting 2 for prevent frostbite and split the valve body leakproofness well.
During specific use, under the circumstances of not cutting off the power supply, when normal use, actuating mechanism 3 is in first state, joint between joint 31 and the second pipe fitting 2, and the involucra 11 of 1 tip of first pipe fitting can outwards form a pulling force because of hydraulic effect, carries on spacingly to joint 31 and second pipe fitting 2 for second pipe fitting 2 can not remove 1 first pipe fitting relatively. When the temperature reduces, the elasticity of first memory alloy elastic component and second memory alloy elastic component slowly diminishes, reduce to the second temperature when the temperature, the temperature drops to below 0 degrees centigrade promptly, the compression of second memory alloy elastic component makes joint pole 312 keep away from second pipe fitting 2 and removes the joint relation with second pipe fitting 2, the frozen process volume grow of water can promote second pipe fitting 2 and keep away from to the direction of keeping away from first pipe fitting 1, reserve the space behind the water formation ice for movable rivers passageway, make the space behind the water formation ice release, and first memory alloy elastic component shrink this moment, do not interfere the relative motion of first pipe fitting 1 and second pipe fitting 2. When the temperature rises, the elasticity of the first memory alloy elastic part and the second memory alloy elastic part is gradually increased, the first memory alloy elastic part extends to enable the second pipe fitting 2 to gradually approach the first pipe fitting 1 and return to the initial relative position, and meanwhile, the second memory alloy elastic part gradually extends to push the clamping rod 312 to be clamped in the groove 21 of the second pipe fitting 2, so that the first pipe fitting 1 is fixed relative to the second pipe fitting 2, automatically resets, returns to the initial state, and is ready for the next continuous use. This scheme adopts pure mechanical mechanism, when the outage, can play effectual protection.
In other embodiments, when the temperature is lowered to the second temperature, the freezing process of the water can also push the first tube 1 to move away from the second tube 2, and when the temperature is raised, the elastic forces of the first memory alloy elastic member and the second memory alloy elastic member are gradually increased, and the first memory alloy elastic member is extended to make the first tube 1 gradually approach the second tube 2 and return to the initial relative position.
An embodiment of the present invention further provides a gas water heater, as shown in fig. 5, the gas water heater includes the frost crack prevention valve body according to any one of the above embodiments.
In this embodiment, the frost crack prevention valve body is connected to the water inlet pipe 6, the water outlet 22 is provided at one end of the second pipe 2 far away from the first pipe 1, and the movable connecting pipe 7 is installed between the water outlet 22 and the water inlet pipe 6. A water inlet 13 is formed in the side wall of one end, far away from the second pipe fitting 2, of the first pipe fitting 1, water flows into a movable channel between the first pipe fitting 1 and the second pipe fitting 2 through the water inlet 13, and then flows out of the frost crack prevention valve body through the water outlet 22 to enter the water inlet pipeline 6. Because the second pipe fitting 2 can be to keeping away from or being close to the direction removal of first pipe fitting 1, but the portable setting of second pipe fitting 2, the one end of keeping away from first pipe fitting 1 on the second pipe fitting 2 is connected through swing joint pipe 7 with inlet channel 6, reduce or avoid appearing inlet channel 6 and need move about along with the removal of second pipe fitting 2 to the phenomenon that leads to the damage, also need not to consider inlet channel 6 and reserve bigger assembly space under the condition that needs its activity, compact structure.
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 that 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 spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (11)
1. The utility model provides a prevent frostbite and split valve body which characterized in that, prevent frostbite and split the valve body and include:
a first pipe member;
a second tube in communication with the first tube;
the driving mechanism is provided with a first state and a second state, and is switched from the first state to the second state in the process of reducing the first temperature to the second temperature, so that the first pipe fitting and the second pipe fitting can be relatively far away under the action of external force, and the space of a water flow channel between the first pipe fitting and the second pipe fitting is enlarged;
the driving mechanism comprises a clamping piece connected with the first pipe fitting, and when the driving mechanism is in the first state, the clamping piece is clamped with the second pipe fitting so that the second pipe fitting and the first pipe fitting are relatively fixed; when the driving mechanism is in the second state, the clamping connection between the clamping connection piece and the second pipe fitting is released, so that the second pipe fitting and the first pipe fitting are relatively far away or close to each other;
the clamping piece comprises a sleeve and a clamping rod, the clamping rod is arranged in the sleeve, a through hole is formed in the side wall of the sleeve, and the clamping rod can penetrate through the through hole and is clamped with the second pipe fitting.
2. The frost crack prevention valve body of claim 1, wherein said snap-fit member is disposed within said second pipe member.
3. The frost crack prevention valve body of claim 2, wherein said frost crack prevention valve body comprises a reset member, said reset member bringing said first and second tubular members closer to each other and back to an initial relative position during an increase from said second temperature to said first temperature.
4. The frost crack prevention valve body of claim 1, wherein said clamping member further comprises a second retractable driving member connected to said clamping rod, said second retractable driving member driving said clamping rod to move along said through hole by telescoping in the process of switching between said first temperature and said second temperature.
5. The frost crack prevention valve body of claim 4, wherein the clamping rod comprises a first rod and a second rod fixed in a crossed manner, the second retractable driving member is sleeved on an outer peripheral side of the first rod, and two ends of the second retractable driving member respectively abut against the second rod and an inner wall of the sleeve to drive the first rod to move along an extending direction thereof.
6. The freeze crack resistant valve body of claim 4, wherein the second retractable drive member is a second memory alloy spring.
7. The frost crack prevention valve body of claim 1, wherein the inner wall of said second pipe member is recessed to engage with said snap-fit member.
8. The frost crack prevention valve body of claim 1, wherein said second tubular member is partially disposed within said first tubular member, wherein a side wall of said first tubular member is provided with a water inlet, said water inlet being located in a non-overlapping region between said first tubular member and said second tubular member, and wherein a seal is disposed between an inner wall of said first tubular member and an outer wall of said second tubular member.
9. The frost crack prevention valve body of claim 1, wherein said frost crack prevention valve body comprises a reset member, said reset member bringing said first and second tubular members closer to each other and back to an initial relative position during an increase from said second temperature to said first temperature.
10. A gas water heater, characterized in that it comprises a frost crack prevention valve body according to any of claims 1-9.
11. The gas water heater as claimed in claim 10, wherein said frost crack prevention valve is connected to a water inlet pipe, an end of said second pipe member away from said first pipe member is provided with a water outlet, and a movable connecting pipe is installed between said water outlet and said water inlet pipe.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310104999.3A CN116293023A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
| CN202210458463.7A CN114811145B (en) | 2022-04-27 | 2022-04-27 | Prevent frostbite and split valve body and contain its gas heater |
| CN202310122492.0A CN116025756A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210458463.7A CN114811145B (en) | 2022-04-27 | 2022-04-27 | Prevent frostbite and split valve body and contain its gas heater |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310104999.3A Division CN116293023A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
| CN202310122492.0A Division CN116025756A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
Publications (2)
| Publication Number | Publication Date |
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| CN114811145A CN114811145A (en) | 2022-07-29 |
| CN114811145B true CN114811145B (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310122492.0A Pending CN116025756A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
| CN202210458463.7A Active CN114811145B (en) | 2022-04-27 | 2022-04-27 | Prevent frostbite and split valve body and contain its gas heater |
| CN202310104999.3A Pending CN116293023A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310122492.0A Pending CN116025756A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310104999.3A Pending CN116293023A (en) | 2022-04-27 | 2022-04-27 | Frost crack prevention valve body and gas water heater containing same |
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| CN (3) | CN116025756A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004349A (en) * | 2000-06-22 | 2002-01-09 | Osaka Gas Co Ltd | Freeze-fracture prevention plug and selector valve- attached joint |
| CN201652829U (en) * | 2010-03-23 | 2010-11-24 | 广东万和新电气股份有限公司 | Anti-freezing valve for gas water heater |
| CN207959408U (en) * | 2018-01-15 | 2018-10-12 | 广东乐华家居有限责任公司 | Can frost-cracking-preventing i.e. hot device and intellectual water closet |
| CN110332965A (en) * | 2019-08-05 | 2019-10-15 | 广东万家乐燃气具有限公司 | A kind of water flow sensor and gas heater |
| CN211823162U (en) * | 2020-01-06 | 2020-10-30 | 宁波方太厨具有限公司 | Water inlet connector and water heater using same |
| EP3964652A1 (en) * | 2020-09-02 | 2022-03-09 | Fujian Xihe Sanitary Ware Technology Co., Ltd. | Faucet |
| CN216306788U (en) * | 2021-06-30 | 2022-04-15 | 宁波方太厨具有限公司 | Anti-freezing valve and water heater applying same |
-
2022
- 2022-04-27 CN CN202310122492.0A patent/CN116025756A/en active Pending
- 2022-04-27 CN CN202210458463.7A patent/CN114811145B/en active Active
- 2022-04-27 CN CN202310104999.3A patent/CN116293023A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004349A (en) * | 2000-06-22 | 2002-01-09 | Osaka Gas Co Ltd | Freeze-fracture prevention plug and selector valve- attached joint |
| CN201652829U (en) * | 2010-03-23 | 2010-11-24 | 广东万和新电气股份有限公司 | Anti-freezing valve for gas water heater |
| CN207959408U (en) * | 2018-01-15 | 2018-10-12 | 广东乐华家居有限责任公司 | Can frost-cracking-preventing i.e. hot device and intellectual water closet |
| CN110332965A (en) * | 2019-08-05 | 2019-10-15 | 广东万家乐燃气具有限公司 | A kind of water flow sensor and gas heater |
| CN211823162U (en) * | 2020-01-06 | 2020-10-30 | 宁波方太厨具有限公司 | Water inlet connector and water heater using same |
| EP3964652A1 (en) * | 2020-09-02 | 2022-03-09 | Fujian Xihe Sanitary Ware Technology Co., Ltd. | Faucet |
| CN216306788U (en) * | 2021-06-30 | 2022-04-15 | 宁波方太厨具有限公司 | Anti-freezing valve and water heater applying same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116293023A (en) | 2023-06-23 |
| CN116025756A (en) | 2023-04-28 |
| CN114811145A (en) | 2022-07-29 |
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