CN220727283U - Automatic heating valve - Google Patents

Abstract

The utility model relates to the technical field of radiator heating systems, in particular to an automatic heating valve. The valve seat is provided with a water inlet joint, a water outlet joint and a first cavity, the water inlet joint is provided with a water inlet, and the water outlet joint is provided with a water outlet; a water retaining structure is arranged in the first cavity, a water passing cavity is arranged on the water retaining structure, and the water inlet is communicated with the water outlet through the water passing cavity; a thermosensitive magnet, a guide piece, a sliding piece and a driving structure are arranged in the first cavity, and the thermosensitive magnet is connected with the valve seat or the valve cover; the guide piece is connected with the valve seat; one end of the sliding piece is provided with a valve plug, and the other end is provided with a permanent magnet. The automatic heating valve overcomes the defects that energy is consumed and heat energy waste is generated by manually opening and closing the valve in the prior art, and the automatic heating valve can be automatically opened or closed according to the ambient temperature, so that automatic conduction and blocking of hot water are realized, manual intervention is not needed, and the energy and the consumption are saved; and the sealing performance is better, and water leakage is not easy to occur.

Description

Automatic heating valve

Technical Field

The utility model relates to the technical field of radiator heating systems, in particular to an automatic heating valve.

Background

The radiator is an important device for heating in winter, and the radiator adopted by the current heating system mainly comprises a water heating radiator, an electric radiator, a solar radiator, a carbon crystal radiator, a superconductive radiator and the like. The working principle of the water heating radiator is that the wall-mounted boiler or the boiler is used for heating circulating water, then the hot water is conveyed to the heating radiator through the hot water pipe, finally, proper temperature is output through the heating radiator, and the indoor temperature is accelerated to rise through air flow, so that the heating purpose is achieved.

The hot water delivered from the wall-hanging boiler or boiler to the radiator is controlled by a heating valve installed in the hot water pipe. The radiator valve comprises a water inlet, a water outlet, a pipe body between the water inlet and the water outlet, a valve body inside the pipe body, a valve body handle connected with the valve body and a valve body track for the valve body to move. In this solution, the valve is opened or closed by manually adjusting the position of the valve body handle.

However, the above-mentioned technical solution requires manual frequent opening and closing of the valve, which requires a certain effort; when the ambient temperature rises to a certain temperature, the subjective judgment of people cannot accurately determine the ambient temperature, so that the valve is kept in an open state, unnecessary heat energy waste is generated, and in the use process, people also can forget to close the valve, so that the waste of hot water and heat energy is caused.

Disclosure of Invention

Aiming at the problems that the manual opening and closing of the valve needs to consume energy and heat energy waste in the prior art, the utility model provides the automatic heating valve which can be automatically opened or closed according to the ambient temperature to realize automatic conduction and blocking of hot water without manual intervention, thereby saving energy and saving consumption.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

an automatic heating valve comprises a valve seat and a valve cover connected with the valve seat, wherein a water inlet joint, a water outlet joint and a first cavity are arranged on the valve seat, the water inlet joint is provided with a water inlet, and the water outlet joint is provided with a water outlet; a water retaining structure is arranged in the first cavity, a water passing cavity is arranged on the water retaining structure, and the water inlet is communicated with the water outlet through the water passing cavity; the valve cover is used for closing the first cavity; a thermosensitive magnet, a guide piece, a sliding piece and a driving structure are arranged in the first cavity, and the thermosensitive magnet is connected with the valve seat or the valve cover; the guide piece is connected with the valve seat; one end of the sliding piece is provided with a valve plug for closing the water through cavity, the other end of the sliding piece is provided with a permanent magnet, the permanent magnet is positioned between the thermosensitive magnet and the valve plug, and the sliding piece is in sliding connection with the guide piece along the connecting line direction of the thermosensitive magnet and the permanent magnet; the driving structure is connected with the sliding piece and used for driving the sliding piece to slide in a direction away from the thermosensitive magnet.

In the above technical solution, the magnetism of the thermosensitive magnet may change along with the change of the ambient temperature, when the ambient temperature is lower than the magnetic conduction critical temperature, the thermosensitive magnet recovers the magnetism, the magnetic conductivity thereof decreases along with the rise of the temperature, and when the ambient temperature rises to be higher than the demagnetizing critical temperature, the thermosensitive magnet loses the magnetism. When the automatic heating valve is used, the water inlet connector is connected with the water pipe, the water outlet connector is connected with the water pipe, when the ambient temperature is lower than the magnetic conduction critical temperature, the thermosensitive magnet presents magnetism and is mutually adsorbed with the permanent magnet, the permanent magnet is close to the thermosensitive magnet by the magnetic force of the thermosensitive magnet, and therefore the sliding piece and the valve plug are driven to slide in the direction of the thermosensitive magnet until the valve plug is separated from the water through cavity; after the valve plug is separated from the water through cavity, hot water flowing in from the water inlet can flow to the water outlet through the water through cavity and flow out, so that the conduction of the hot water is realized; when the ambient temperature rises to be higher than the demagnetizing critical temperature, the thermosensitive magnet loses magnetism, the permanent magnet does not bear external force and slides downwards together with the sliding piece under the driving force of the driving structure until the valve plug slides downwards to the water cavity to seal the water cavity, so that the conduction of hot water is blocked. Automatic conduction and automatic blocking of hot water are realized through environmental temperature change, and manual intervention is not needed for opening and closing a heating valve, so that waste of hot water and heat energy is reduced.

Preferably, a heat insulation layer is arranged on the guide piece, a connecting part is arranged on the periphery of the guide piece, a second cavity is arranged on the guide piece, and the connecting part is attached to the inner wall of the first cavity; the thermosensitive magnet and the permanent magnet are both positioned in the second cavity; the sliding piece is in sliding connection with the guide piece along the connecting line direction of the thermosensitive magnet and the permanent magnet. The guide piece provided with the heat insulation layer separates the hot water flowing in the valve seat from the heat-sensitive magnet, so that the influence of the temperature of the hot water on the magnetism of the heat-sensitive magnet can be reduced. Of course, the guide member may also be made of heat insulating material directly to reach the heat insulating effect.

Preferably, the drive structure comprises a spring located in the second cavity, one end of the spring being in abutment with the thermally sensitive magnet or with the guide, and the other end of the spring being in abutment with the permanent magnet or with the slider. The sliding piece is driven by the spring to slide, so that the valve plug is reset. When the magnetism of the thermosensitive magnet is recovered, the permanent magnet approaches the thermosensitive magnet by the magnetic force of the thermosensitive magnet, so that the spring is compressed; when the thermosensitive magnet loses magnetism, the permanent magnet does not have the magnetic force of the thermosensitive magnet, so that the thermosensitive magnet is reset under the action of the elastic force of the spring until the valve plug blocks the water cavity. The spring is simpler and less costly than other drive structures such as air cylinders, electric pushers, etc. Of course, the spring can be replaced by an elastic member made of elastic material, and the elasticity and mechanical performance of the spring are better, so that the spring is preferable as an auxiliary member for resetting the valve plug.

Preferably, a first abutting part is arranged on the inner wall of the second cavity, a plurality of through holes are formed in the bottom of the second cavity, and a second abutting part is arranged on the sliding piece; one end of the spring is abutted with the first abutting part, and the other end of the spring is abutted with one side of the second abutting part; in the initial state, the other side of the second abutting part abuts against the bottom of the second cavity and closes all the through holes. When the water pressure passing through the water cavity suddenly increases, hot water can firstly enter the second cavity through the through hole, and after the water pressure is reduced and stabilized, the water entering the second cavity flows out to the water outlet through the through hole; the through holes are arranged at the bottom of the second cavity, so that the sudden increase of water pressure can be dispersed, and impact damage to the valve seat or the guide piece caused by overlarge local water pressure is avoided. The first abutting part is arranged to enable the spring to be stable in the second cavity, and the spring is prevented from being deflected in the second cavity due to the impact of water pressure. It can be understood that in the normal hot water conveying process, the water vapor and the heat transferred to the second cavity through the through hole are less, so that the magnetic influence on the thermosensitive magnet is not great, and the magnetism of the thermosensitive magnet is mainly influenced by the external environment temperature.

Preferably, the thermosensitive magnet is connected with the valve cover through a connecting rod; the connecting rod is sleeved with a sealing piece for sealing the second cavity; the valve cover is provided with a pressing part, the outer edge of the sealing element is positioned between the pressing part and the guiding element, one side, close to the valve cover, of the outer edge of the sealing element is abutted to the pressing part, and the other side is abutted to one side, close to the valve cover, of the guiding element. The sealing member can improve the tightness of the second cavity, so that the leakage of water vapor in the process of conveying hot water through the whole heating valve is reduced.

Preferably, the device further comprises a fastening nut in threaded connection with the connecting rod and a gasket sleeved on the connecting rod, wherein the sealing element is positioned between the gasket and the thermosensitive magnet, one side of the gasket is abutted with the fastening nut, and the other side of the gasket is abutted with the sealing element. The sealing element is fastened on the connecting rod by the fastening nut and the gasket, so that the sealing performance of the sealing element is improved, and the water vapor leakage is further reduced.

Preferably, a buffer convex ring is arranged on one side of the sealing element, the buffer convex ring is positioned between the pressing part and the connecting rod, and a ring groove is arranged on the buffer convex ring; the center line of the buffer convex ring, the center line of the ring groove and the center line of the sealing piece are overlapped. When the permanent magnet and the thermosensitive magnet are adsorbed together, if the water pressure suddenly increases, a certain impact is caused on the valve plug, so that the sliding piece and the permanent magnet continue to move a certain distance in the direction close to the thermosensitive magnet, and the thermosensitive magnet is subjected to the impact force of the permanent magnet and moves a certain distance in the direction far away from the permanent magnet, so that a certain pulling damage is caused on the sealing piece, and the sealing piece is easy to fail; the buffering convex ring is arranged to buffer the sealing element from being pulled by the thermosensitive magnet, so that the rebound resilience of the sealing element is improved, and the risk of failure of the sealing element is reduced.

Preferably, the water passing cavity is a conical water passing cavity, and the caliber of one end of the water passing cavity far away from the permanent magnet is smaller than that of the other end; the valve plug is conical, and the cross-sectional area of one end of the valve plug, which is far away from the permanent magnet, is smaller than the cross-sectional area of the other end. The conical valve plug is more tightly connected with the conical through hole, so that the sealing effect can be improved; and when the valve plug is reset to an initial state, the conical water through cavity is also beneficial to positioning the valve plug so as to quickly seal the water through cavity.

Preferably, the inner cavity of the water inlet connector is provided with a first sealing ring for abutting against the outer wall of the water pipe; the inner cavity of the water outlet joint is provided with a second sealing ring which is used for being abutted with the water pipe. The water inlet joint and the water outlet joint are connected with the water pipe in a socket connection way, and the first sealing ring and the second sealing ring are arranged to reduce the resistance of the water pipe inserted into the water inlet joint and the water outlet joint, so that the installation efficiency of the heating valve is improved; in addition, the first sealing ring and the second sealing ring can further improve the connection tightness of the water pipe and the whole heating valve, so that water leakage is reduced.

Preferably, a first limiting part is arranged on the inner wall of the water inlet joint, and a first sleeve is connected on the outer wall of the water inlet joint in a threaded manner; the inner wall of the water outlet joint is provided with a second limiting part, and the outer wall of the water outlet joint is connected with a second sleeve member through threads; one end of the first sleeve piece, which is far away from the second sleeve piece, is provided with a fourth abutting part, one side of the first sealing ring abuts against the first limiting part, and the other side abuts against the fourth abutting part; one end of the second sleeve piece, which is far away from the first sleeve piece, is provided with a fifth abutting part, one side of the second sealing ring abuts against the second limiting part, and the other side abuts against the fifth abutting part. The first limiting part and the fourth abutting part can enable the first sealing ring to be firmly fixed on the inner wall of the water inlet joint, so that the first sealing ring is prevented from shifting or separating from the water inlet joint; it is understood that the second limiting portion and the fifth abutting portion function identically to the first limiting portion and the fifth abutting portion.

The utility model has the beneficial effects that: the magnetic permeability of the thermosensitive permanent magnet is changed by temperature change, when the ambient temperature is lower than the magnetic permeability critical temperature of the thermosensitive magnet, the thermosensitive permanent magnet can adsorb the permanent magnet to open the water through hole, so that automatic conduction of hot water is realized, and when the ambient temperature is higher than the demagnetizing critical temperature of the thermosensitive magnet, the permanent magnet is reset without magnetic force, so that the water through hole is closed, and automatic blocking of hot water is realized; the hot water is conducted or blocked without manual operation and adjustment, so that not only is the labor saved, but also the energy is saved, the environment is protected, the environment temperature can be kept constant by using the automatic heating valve, and the use comfort of a user can be improved; the heating valve is provided with the sealing piece, the first sealing ring and the second sealing ring, has good sealing performance and is not easy to leak water.

Drawings

FIG. 1 is a schematic view of the external structure of an automatic heating valve;

FIG. 2 is a schematic cross-sectional view of an automatic heating valve;

FIG. 3 is a schematic view of a slider structure;

FIG. 4 is a schematic structural view of a seal;

fig. 5 is a schematic cross-sectional view of a seal.

In the accompanying drawings: 1-valve seat; 101-a first cavity; 102-a water retaining structure; 103-a water passing cavity; 2-a valve cover; 201-a pressing part; 3-a water inlet joint; 301-a water inlet; 302-a first limit part; 4-a water outlet joint; 401-water outlet; 402-a second limit part; 5-a thermosensitive magnet; 6-a guide; 601-connection; 602-a second cavity; 603-a first abutment; 604-a via; 605-a clamping groove; 606-a third abutment; 7-a slider; 701-a second abutment; 8-a valve plug; 9-permanent magnets; 10-springs; 11-connecting rod; 12-a seal; 1201-a buffer collar; 1202-ring grooves; 1203-snap-fit collar; 13-tightening a nut; 14-a gasket; 15-a first sealing ring; 16-a second sealing ring; 17-a first kit; 1701-fourth abutments; 18-a second kit; 1801-fifth abutment.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present utility model and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

An automatic heating valve as shown in connection with fig. 1 to 5, comprising a valve seat 1 and a valve cover 2 screwed with the valve seat 1, the valve cover 2 being used for closing a first cavity 101; the opposite sides of the valve seat 1 are respectively provided with a water inlet joint 3 and a water outlet joint 4. The valve seat 1 is also provided with a first cavity 101; the water inlet connector 3 is provided with a water inlet 301, the water outlet connector 4 is provided with a water outlet 401, and the first cavity 101 is communicated with the water outlet 401; a water retaining structure 102 is arranged in the first cavity 101, a water passing cavity 103 is arranged on the water retaining structure 102, and a water inlet 301 is communicated with a water outlet 401 through the water passing cavity 103. Specifically, a thermosensitive magnet 5, a guide piece 6, a sliding piece 7 and a driving structure are arranged in the first cavity 101, and the thermosensitive magnet 5 is connected with the valve cover 2; the guide piece 6 is connected with the valve seat 1; one end of the sliding piece 7 is provided with a valve plug 8 for closing the water through cavity 103, the other end is provided with a permanent magnet 9, and the permanent magnet 9 is positioned between the thermosensitive magnet 5 and the valve plug 8; the sliding piece 7 and the guiding piece 6 are connected in a sliding way along the connecting line direction of the thermosensitive magnet 5 and the permanent magnet 9; the driving structure is connected with the sliding piece 7 and is used for driving the sliding piece 7 to slide in a direction away from the thermosensitive magnet 5. The mounting positions of the thermo-sensitive magnet 5 and the permanent magnet 9 may be replaced with each other.

Further, the guide member 6 is made of a metal material, the outside of which is coated with a heat insulating layer, a connecting portion 601 is provided on the outer periphery of the guide member 6 and the guide member 6 is provided with a second cavity 602, a third abutting portion 606 is provided on the inner wall of the first cavity 101, the connecting portion 601 abuts against the inner wall of the first cavity 101 and the bottom of the connecting portion abuts against the top of the third abutting portion 606; both the thermo-sensitive magnet 5 and the permanent magnet 9 are positioned in the second cavity 602; the sliding member 7 and the guiding member 6 are slidably connected along the line direction of the thermo-sensitive magnet 5 and the permanent magnet 9. The guide 6 provided with the heat insulating layer separates the hot water flowing inside the valve seat 1 from the thermo-sensitive magnet 5, and can reduce the influence of the temperature of the hot water on the magnetism of the thermo-sensitive magnet 5. Of course, the guide member 6 can also be directly made of heat insulation materials to achieve the heat insulation effect, and the guide member 6 coated with a heat insulation layer after being made of metal materials has higher strength and longer service life.

Further, the driving structure includes a spring 10 located in the second cavity 602, one end of the spring 10 abuts against the guide 6, and the other end of the spring 10 abuts against the slider 7. When the thermo-sensitive magnet 5 is restored to magnetism, the permanent magnet 9 approaches the thermo-sensitive magnet 5 by the magnetic force of the thermo-sensitive magnet 5, so that the spring 10 is compressed; when the thermosensitive magnet 5 loses magnetism, the permanent magnet 9 does not have the magnetic force of the thermosensitive magnet 5, so that the magnetic valve is reset under the action of the elastic force of the spring 10 until the valve plug 8 blocks the water passing cavity 103. The sliding piece 7 is driven to slide by the spring 10, so that the valve plug 8 is reset. When the thermo-sensitive magnet 5 is restored to magnetism, the permanent magnet 9 approaches the thermo-sensitive magnet 5 by the magnetic force of the thermo-sensitive magnet 5, so that the spring 10 is compressed; when the thermosensitive magnet 5 loses magnetism, the permanent magnet 9 does not have the magnetic force of the thermosensitive magnet 5, so that the magnetic valve is reset under the action of the elastic force of the spring 10 until the valve plug 8 blocks the water passing cavity 103. The spring 10 is simpler and less costly than other drive arrangements such as air cylinders, electric pushers, etc. Of course, the spring 10 may be replaced by an elastic member made of an elastic material, and the spring 10 has better elasticity and mechanical properties, so that the spring 10 is preferable as an auxiliary member for resetting the valve plug 8.

Specifically, referring to fig. 2 and 3, four first abutting portions 603 are disposed on the inner wall of the second cavity 602, and the four first abutting portions 603 are uniformly distributed along the inner wall of the second cavity 602; four through holes 604 are formed in the bottom of the second cavity 602, and a second abutting part 701 is arranged on the sliding piece 7; one end of the spring 10 abuts against the first abutting portion 603, and the other end abuts against one side of the second abutting portion 701; in the initial state, the other side of the second abutting portion 701 abuts against the bottom of the second cavity 602 and closes all the through holes 604. The initial state described in the present specification is a state in which the valve plug 8 blocks the water passage 103. In the initial state, when the water pressure passing through the water cavity 103 suddenly increases and the impact force on the valve plug 8 is greater than the elastic force of the spring 10 on the second abutting part 701, the valve plug 8 moves upwards, so that the second abutting part 701 is separated from the bottom of the second cavity 602, hot water can enter the second cavity 602 through the through hole 604, and after the water pressure is reduced and stabilized, the water entering the second cavity 602 flows out to the water outlet 401 through the through hole 604; the through holes 604 are arranged at the bottom of the second cavity 602, so that the sudden increase of water pressure can be dispersed, and impact damage to the valve seat 1 or the guide piece 6 caused by excessive local water pressure can be avoided. The first abutting portion 603 can enable the spring 10 to be stable in the second cavity 602, and the spring 10 is prevented from being deflected in the second cavity 602 due to the impact of water pressure. It will be appreciated that during normal delivery of hot water, less moisture and heat is transferred into the second cavity 602 through the through holes 604, and the magnetic effect on the heat sensitive magnet 5 is not great, and the magnetic effect of the heat sensitive magnet 5 is mainly affected by the external ambient temperature.

Further, the thermo-sensitive magnet 5 is connected with the valve cover 2 through the connecting rod 11, specifically, the connecting rod 11 is made of non-magnetic stainless steel material, so that the connecting rod 11 is assembled; the valve cover 2 comprises a cover body and a knob, the cover body is in threaded connection with the valve seat 1 and sleeved on the connecting rod 11, and the top of the connecting rod 11 is exposed out of the cover body and is in threaded connection with the knob so as to facilitate the disassembly and assembly of the connecting rod 11. The connecting rod 11 is sleeved with a sealing piece 12 for closing the second cavity 602; the valve cover 2 is provided with a pressing part 201, the outer edge of the sealing element 12 is positioned between the pressing part 201 and the guide element 6, one side, close to the valve cover 2, of the outer edge of the sealing element 12 is abutted with the pressing part 201, and the other side is abutted with one side, close to the valve cover 2, of the guide element 6. Seal 12 may improve the tightness of second cavity 602, thereby reducing leakage of water vapor throughout the heating valve during delivery of hot water.

Further, referring to fig. 2, 4 and 5, a clamping convex ring 1203 is arranged on one side of the sealing member 12 close to the connecting portion 601, and the central line of the clamping convex ring 1203 coincides with the central line of the connecting rod 11; the connecting portion 601 is provided with an annular clamping groove 605 on one side close to the valve cover 2, and the clamping convex ring 1203 is clamped with the clamping groove 605. Therefore, when the valve is assembled, the sealing element 12 is not easy to fall off, and the edge of the sealing element 12 can be completely pressed between the connecting part 601 and the pressing part 201 through the clamping convex ring 1203 and the clamping groove 605, so that the sealing element 12 is firmer, and the sealing effect of the sealing element 12 is further improved.

Further, the device also comprises a fastening nut 13 in threaded connection with the connecting rod 11 and a gasket 14 sleeved on the connecting rod 11, wherein the sealing element 12 is positioned between the gasket 14 and the thermosensitive magnet 5, one side of the gasket 14 is abutted with the fastening nut 13, and the other side of the gasket 14 is abutted with the sealing element 12. The fastening nut 13 and the gasket 14 are provided to fasten the sealing member 12 to the link 11, thereby improving the sealability of the sealing member 12 and further reducing the leakage of water vapor.

Further, the sealing element 12 is made of a silicon rubber material, a buffer convex ring 1201 is arranged on one side of the sealing element 12 far away from the valve cover 2, the buffer convex ring 1201 is positioned between the compression part 201 and the connecting rod 11, and a ring groove 1202 is arranged on the buffer convex ring 1201; the centerline of the cushion collar 1201, the centerline of the ring groove 1202, and the centerline of the seal 12 coincide. When the permanent magnet 9 and the thermosensitive magnet 5 are adsorbed together, if the water pressure suddenly increases, a certain impact is caused on the valve plug 8, so that the sliding piece 7 and the permanent magnet 9 continue to move a certain distance in the direction approaching the thermosensitive magnet 5, the thermosensitive magnet 5 receives the impact force of the permanent magnet 9 and moves a certain distance in the direction far away from the permanent magnet 9, and a certain pulling damage is caused on the sealing piece 12, so that the sealing piece 12 is easy to fail; by providing the buffer collar 1201, the pulling of the thermo-sensitive magnet 5 and the connecting rod 11 against the seal 12 can be buffered, improving the resilience of the seal 12 and reducing the risk of failure of the seal 12.

The working principle or workflow of the present embodiment: the magnetism of the thermo-sensitive magnet 5 can be changed along with the change of the ambient temperature, when the ambient temperature is lower than the magnetic conduction critical temperature, the thermo-sensitive magnet 5 recovers magnetism, the magnetic conductivity of the thermo-sensitive magnet decreases along with the rise of the temperature, and when the ambient temperature rises to be higher than the demagnetizing critical temperature, the thermo-sensitive magnet 5 loses magnetism. When the automatic heating valve is used, the water inlet connector 3 is connected with a water pipe, the water outlet connector 4 is connected with a water pipe, when the ambient temperature is lower than the magnetic conduction critical temperature, the thermosensitive magnet 5 presents magnetism and is mutually adsorbed with the permanent magnet 9, the permanent magnet 9 is close to the thermosensitive magnet 5 by the magnetic force of the thermosensitive magnet 5, so that the sliding piece 7 and the valve plug 8 are driven to slide upwards until the valve plug 8 is separated from the water through cavity 103, and the spring 10 is compressed by the pressure of the second abutting part 701; after the valve plug 8 is separated from the water communication cavity 103, hot water flowing in from the water inlet 301 can flow to the water outlet 401 through the water communication cavity 103 and flow out, so that the conduction of the hot water is realized; when the ambient temperature rises above the demagnetizing critical temperature, the thermosensitive magnet 5 loses magnetism, the permanent magnet 9 is not subjected to external force, the second abutting part 701 on the sliding piece 7 slides downwards due to the elasticity of the spring 10 and self gravity until the valve plug 8 slides downwards to the water communicating cavity 103 to close the water communicating cavity 103, so that the conduction of hot water is blocked.

The beneficial effects of this embodiment are: the magnetic permeability of the thermosensitive permanent magnet is changed by temperature change, when the ambient temperature is lower than the magnetic permeability critical temperature of the thermosensitive magnet, the thermosensitive permanent magnet can adsorb the permanent magnet to open the water through hole, so that automatic conduction of hot water is realized, and when the ambient temperature is higher than the demagnetizing critical temperature of the thermosensitive magnet, the permanent magnet is reset without magnetic force, so that the water through hole is closed, and automatic blocking of hot water is realized; the hot water is conducted or blocked without manual operation and adjustment, so that not only is the labor saved, but also the energy is saved, the environment is protected, the environment temperature can be kept constant by using the automatic heating valve, and the use comfort of a user can be improved; all the components are detachably connected, so that the heating valve is more convenient to assemble and disassemble; the valve cover is in threaded connection with the valve seat, and the heating valve is provided with a sealing piece, so that the heating valve has good sealing performance and is not easy to leak water.

Example 2

In this embodiment, on the basis of embodiment 1, as shown in fig. 2, the water-passing cavity 103 is a conical water-passing cavity, and the caliber of one end of the water-passing cavity 103 far from the permanent magnet 9 is smaller than that of the other end; the valve plug 8 is tapered, and the cross-sectional area of one end of the valve plug 8 away from the permanent magnet 9 is smaller than that of the other end. The connection between the conical valve plug 8 and the conical through hole 604 is tighter, so that the sealing effect can be improved; and when the valve plug 8 is reset to the initial state, the conical water communication cavity 103 is also beneficial to positioning the valve plug 8 so as to quickly seal the water communication cavity 103.

Other features, operation principles, and advantageous effects of this embodiment are the same as those of embodiment 1.

Example 3

In this embodiment, on the basis of embodiment 2, as shown in fig. 2, a first sealing ring 15 for abutting against the outer wall of the water pipe is provided in the inner cavity of the water inlet connector 3; the inner cavity of the water outlet joint 4 is provided with a second sealing ring 16 which is used for being abutted with the water pipe. The water inlet connector 3 and the water outlet connector 4 are connected with the water pipe in a socket connection way, and the first sealing ring 15 and the second sealing ring 16 are arranged to reduce the resistance of the water pipe inserted into the water inlet connector 3 and the water outlet connector 4, so that the installation efficiency of the heating valve is improved; in addition, the first and second sealing rings 15 and 16 can also improve the connection tightness of the water pipe and the whole heating valve, thereby reducing water leakage.

Further, a first limiting part 302 is arranged on the inner wall of the water inlet joint 3, and a first sleeve member 17 is connected on the outer wall of the water inlet joint 3 in a threaded manner; the inner wall of the water outlet joint 4 is provided with a second limiting part 402, and the outer wall of the water outlet joint 4 is connected with a second sleeve 18 in a threaded manner; one end of the first sleeve 17, which is far away from the second sleeve 18, is provided with an annular fourth abutting part 1701, one side of the first sealing ring 15 abuts against the first limiting part 302, and the other side abuts against the fourth abutting part 1701; one end of the second sleeve member 18, which is far away from the first sleeve member 17, is provided with an annular fifth abutting portion, one side of the second seal ring 16 abuts against the second limiting portion 402, and the other side abuts against the fifth abutting portion. The first limiting portion 302 and the fourth abutting portion 1701 can enable the first sealing ring 15 to be firmly fixed on the inner wall of the water inlet joint 3, so that the first sealing ring 15 is prevented from shifting or separating from the water inlet joint 3; it will be appreciated that the second stop 402 and fifth abutment function in the same manner as the first stop 302 and fifth abutment.

Further, the first sealing ring 15 and the second sealing ring 16 are both conical sealing rings, the cross-sectional area of one side of the first sealing ring 15 away from the second sealing ring 16 is larger than that of the other side, and the cross-sectional area of one side of the second sealing ring 16 away from the first sealing ring 15 is larger than that of the other side. After the water inlet fitting 3 or the water outlet fitting 4 is inserted into the water pipe, the tapered sealing ring can be compressed to improve its sealing property when the first sleeve member 17 or the second sleeve member 18 is screwed.

Other features, operation principles, and advantageous effects of this embodiment are the same as those of embodiment 2.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. An automatic heating valve comprises a valve seat (1) and a valve cover (2) connected with the valve seat (1), wherein a water inlet joint (3), a water outlet joint (4) and a first cavity (101) are arranged on the valve seat (1), the water inlet joint (3) is provided with a water inlet (301), and the water outlet joint (4) is provided with a water outlet (401); a water retaining structure (102) is arranged in the first cavity (101), a water passing cavity (103) is arranged on the water retaining structure (102), and the water inlet (301) is communicated with the water outlet (401) through the water passing cavity (103); the valve cover (2) is used for closing the first cavity (101); the valve seat is characterized in that a thermosensitive magnet (5), a guide piece (6), a sliding piece (7) and a driving structure are arranged in the first cavity (101), and the thermosensitive magnet (5) is connected with the valve seat (1) or the valve cover (2); the guide piece (6) is connected with the valve seat (1); one end of the sliding piece (7) is provided with a valve plug (8) for closing the water through cavity (103), the other end of the sliding piece is provided with a permanent magnet (9), the permanent magnet (9) is positioned between the thermosensitive magnet (5) and the valve plug (8), and the sliding piece (7) and the guiding piece (6) are in sliding connection along the connecting line direction of the thermosensitive magnet (5) and the permanent magnet (9); the driving structure is connected with the sliding piece (7) and is used for driving the sliding piece (7) to slide in a direction away from the thermosensitive magnet (5).

2. An automatic heating valve according to claim 1, characterized in that a heat insulation layer is arranged on the guide piece (6), a connecting part (601) is arranged on the periphery of the guide piece (6), a second cavity (602) is arranged on the guide piece (6), and the connecting part (601) is attached to the inner wall of the first cavity (101); the thermosensitive magnet (5) and the permanent magnet (9) are both positioned in the second cavity (602); the sliding piece (7) and the guiding piece (6) are connected in a sliding way along the connecting line direction of the thermosensitive magnet (5) and the permanent magnet (9).

3. An automatic heating valve according to claim 2, characterized in that said driving structure comprises a spring (10) located in said second cavity (602), one end of said spring (10) being in abutment with said thermo-sensitive magnet (5) or with said guide (6), the other end of said spring (10) being in abutment with said permanent magnet (9) or with said slider (7).

4. An automatic heating valve according to claim 3, characterized in that a first abutting part (603) is arranged on the inner wall of the second cavity (602) and a plurality of through holes (604) are arranged at the bottom of the second cavity (602), and a second abutting part (701) is arranged on the sliding piece (7); one end of the spring (10) is in contact with the first contact portion (603), and the other end is in contact with one side of the second contact portion (701); in an initial state, the other side of the second abutting part (701) abuts against the bottom of the second cavity (602) and closes all the through holes (604).

5. An automatic heating valve according to claim 4, characterized in that said thermo-sensitive magnet (5) is connected to said valve cover (2) by means of a connecting rod (11); a sealing element (12) for sealing the second cavity (602) is sleeved on the connecting rod (11); be equipped with on valve gap (2) and compress tightly portion (201), the outward flange of sealing member (12) is located compress tightly portion (201) with between guide (6) and on the outward flange of sealing member (12) be close to one side of valve gap (2) with compress tightly portion (201) butt, the opposite side with guide (6) are close to one side butt of valve gap (2).

6. An automatic heating valve according to claim 5, further comprising a fastening nut (13) screwed to the connecting rod (11) and a gasket (14) sleeved on the connecting rod (11), wherein the sealing member (12) is located between the gasket (14) and the thermo-sensitive magnet (5), one side of the gasket (14) is abutted to the fastening nut (13), and the other side of the gasket (14) is abutted to the sealing member (12).

7. An automatic heating valve according to claim 5, characterized in that a buffer convex ring (1201) is arranged on one side of the sealing element (12), the buffer convex ring (1201) is positioned between the pressing part (201) and the connecting rod (11), and a ring groove (1202) is arranged on the buffer convex ring (1201); the center line of the buffer convex ring (1201), the center line of the ring groove (1202) and the center line of the sealing element (12) are coincident.

8. An automatic heating valve according to claim 1, characterized in that the water-passing chamber (103) is a conical-shaped water-passing chamber, and the caliber of one end of the water-passing chamber (103) far from the permanent magnet (9) is smaller than the caliber of the other end; the valve plug (8) is conical, and the cross-sectional area of one end of the valve plug (8) far away from the permanent magnet (9) is smaller than that of the other end.

9. An automatic heating valve according to any one of claims 1 to 8, characterized in that the inner cavity of the water inlet joint (3) is provided with a first sealing ring (15) for abutting against the outer wall of the water pipe; the inner cavity of the water outlet joint (4) is provided with a second sealing ring (16) which is used for being abutted with the water pipe.

10. An automatic heating valve according to claim 9, characterized in that a first limit part (302) is arranged on the inner wall of the water inlet joint (3), and a first sleeve member (17) is connected on the outer wall of the water inlet joint (3) in a threaded manner; a second limiting part (402) is arranged on the inner wall of the water outlet joint (4), and a second sleeve (18) is connected on the outer wall of the water outlet joint (4) in a threaded manner; a fourth abutting part (1701) is arranged at one end of the first sleeve (17) far away from the second sleeve (18), one side of the first sealing ring (15) abuts against the first limiting part (302), and the other side abuts against the fourth abutting part (1701); one end of the second sleeve member (18) far away from the first sleeve member (17) is provided with a fifth abutting portion (1801), one side of the second sealing ring (16) abuts against the second limiting portion (402), and the other side abuts against the fifth abutting portion (1801).