CN111022703B - Antifreeze valve and gas water heater using the antifreeze valve - Google Patents
Antifreeze valve and gas water heater using the antifreeze valve Download PDFInfo
- Publication number
- CN111022703B CN111022703B CN201911379411.5A CN201911379411A CN111022703B CN 111022703 B CN111022703 B CN 111022703B CN 201911379411 A CN201911379411 A CN 201911379411A CN 111022703 B CN111022703 B CN 111022703B
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- water outlet
- valve rod
- ball
- 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.)
- Active
Links
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Landscapes
- 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)
- Taps Or Cocks (AREA)
- Multiple-Way Valves (AREA)
Abstract
本发明涉及一种防冻阀及应用该防冻阀的燃气热水器，其中防冻阀包括阀体，其内具有容置腔，所述阀体上开设有均与容置腔相连通的进水口、出水口和排水口；阀球，能转动地设于上述容置腔内，并能转动至第一位置或第二位置，所述阀球具有贯通的过水通道，在阀球处于第一位置的状态下，所述过水通道的两端分别对应与进水口和出水口相流体连通，在阀球处于第二位置的状态下，所述过水通道的两端分别对应与出水口和排水口相流体连通；阀杆，所述阀杆一端穿过阀体和阀球相连，另一端位于阀体外作为驱动端。阀杆的设置使得本发明的防冻阀对电器元件的依赖性低，可以手动操作。
The present invention relates to an antifreeze valve and a gas water heater using the antifreeze valve, wherein the antifreeze valve comprises a valve body having a receiving cavity therein, the valve body being provided with a water inlet, a water outlet and a drain all connected to the receiving cavity; a valve ball rotatably arranged in the receiving cavity and capable of rotating to a first position or a second position, the valve ball having a through water passage, when the valve ball is in the first position, the two ends of the water passage are respectively corresponding to the water inlet and the water outlet for fluid communication, when the valve ball is in the second position, the two ends of the water passage are respectively corresponding to the water outlet and the drain for fluid communication; a valve stem, one end of the valve stem passes through the valve body and is connected to the valve ball, and the other end is located outside the valve body as a driving end. The arrangement of the valve stem makes the antifreeze valve of the present invention less dependent on electrical components and can be operated manually.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to an anti-freezing valve and a gas water heater using the same.
Background
The gas water heater is communicated with the outdoor environment through the smoke exhaust pipe, and cold air easily enters the water heater along the smoke exhaust pipe in cold winter when the outdoor temperature is lower than zero ℃, so that frost cracking is caused at the weak part of the waterway pipeline of the water heater, and therefore, most of the gas water heater is additionally provided with an electric heating frost cracking prevention device, and a certain frost prevention function is achieved. The electric heating frost crack prevention device can normally start to work only when the water heater is in an electrified state, and the conditions that a user has a habit of using the water heater to unplug a power supply plug, or a house is powered off in home or a house just decorated is not powered off for a long time and the like can cause the electric heating device to be unable to start, and the pipeline of the water heater is cracked. The water path of the water heater is normally open at the water inlet end, and normally closed at the water outlet end, so that the user does not find the water inlet valve closed in time, and the whole water leakage causes property loss and safety problems such as floor water leakage, electric leakage and the like.
In order to solve the above problems, a valve ball and a frost valve having the same are disclosed in chinese patent publication No. CN201220167240.7 (publication No. CN 202708175U), wherein the valve ball comprises a body, a first channel and a second channel, the first channel is disposed on the body, the second channel is disposed on the body, and the first channel and the second channel are not communicated with each other. The frost valve comprises a valve body, the valve ball and a valve rod for driving the valve ball to rotate, wherein the valve ball is arranged in the valve body, a water inlet, a water outlet and a water outlet are formed in the valve body, the first channel is arranged corresponding to the water outlet and the water inlet, and the second channel is arranged corresponding to the water outlet and the water outlet. In the water inlet state, the first channel enables the water inlet to be communicated with the water outlet, and the water outlet is in a closed state. In the drainage state, the second channel enables the water outlet to be communicated with the water outlet, so that accumulated water in a water tank of the gas water heater connected with the frost valve can be completely drained.
The frost valve has the following defects that 1, a limiting structure for limiting the rotation angle of a valve rod is not arranged, so that if the valve rod rotates excessively or rotates incompletely, the first channel cannot be communicated with a water inlet and a water outlet or the second channel cannot correspond to a water outlet and a water outlet easily, 2, the valve rod is low in use frequency and can be used only when water is required to be discharged, when the valve rod is not used for a long time, the valve rod is difficult to rotate due to condensation of internal lubricating oil, 3, the valve ball is required to be provided with two first channels and second channels which are not communicated mutually, namely, two channels are required to be communicated from the water inlet and the water outlet to the water outlet, one channel is communicated with the water inlet and the water outlet, and the other channel is communicated with the water outlet and the water outlet, so that the frost valve is complex and difficult to process.
For example, the utility model of Chinese patent with patent number CN200720023750.6 (publication number CN 201093097Y) discloses a solar water heater pipeline anti-freezing valve, which consists of an electronic actuator, a valve core and a valve body, wherein the valve core is a ball valve, is a two-position three-way valve, is internally provided with a right-angle channel, and controls the on-off of a waterway through the electronic actuator. The valve core of the frost valve is provided with only one channel, so that the frost valve is simpler, but the rotation of the valve core is controlled by the electronic actuator, if the valve core cannot be rotated under the condition of power failure, water in a pipeline cannot be drained, and finally the pipeline is cracked.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide an anti-freezing valve which is independent of an electric control element in rotation of a valve ball aiming at the current state of the art.
The second technical problem to be solved by the invention is to provide an anti-freezing valve which can prevent a valve rod driving a valve ball to rotate from being unused for a long time and being difficult to rotate.
The third technical problem to be solved by the invention is to provide a water heater which uses the frost prevention valve and does not depend on an electric control element for rotation of a valve ball aiming at the current state of the art.
The invention solves the first technical problem by adopting the technical proposal that the anti-freezing valve comprises
The valve body is internally provided with a containing cavity, and a water inlet, a water outlet and a water outlet which are all communicated with the containing cavity are formed in the valve body;
The valve ball can be rotationally arranged in the accommodating cavity and can rotate to a first position or a second position, the valve ball is provided with a through water passing channel, two ends of the water passing channel are respectively correspondingly communicated with the water inlet and the water outlet in a fluid manner when the valve ball is in the first position, and two ends of the water passing channel are respectively correspondingly communicated with the water outlet and the water outlet in a fluid manner when the valve ball is in the second position;
characterized in that it also comprises
A valve rod, one end of the valve rod penetrates through the valve body and is connected with the valve ball, the other end is positioned outside the valve body and used as a driving end.
In order to be convenient for carry out the waterway and switch over, the water passage includes all pass valve ball center and perpendicular first passageway and the second passageway that intersects, first passageway and second passageway all have one end to link up the valve ball, the central line of the water inlet end of delivery port and the central line of the water inlet end of outlet mutually perpendicular, just the central line of the water inlet end of delivery port and the central line mutually perpendicular of the play water end of water inlet. The valve body and the valve ball are in the structural form, so that a user can realize waterway switching by only rotating 90 degrees clockwise or anticlockwise, and the conditions that the waterway in the valve ball is complex and the user cannot rotate in place easily are avoided.
In order to be convenient for the user rotate the valve rod, be equipped with the knob of the rotation valve rod of being convenient for on the driving end of valve rod, just be equipped with the limit structure who restricts the rotation angle of valve rod between knob and the valve body, limit structure's setting has further prevented that the user from not rotating the valve ball in place, the circumstances of waterway switching failure.
The limit structure can have various structural forms, preferably, the valve body is provided with a valve rod seat for the valve rod to pass through and relatively rotate at the position corresponding to the valve rod, a first limit rib and a second limit rib which axially extend are arranged on the peripheral wall of the valve rod seat at intervals along the circumferential direction, a resisting block which can be alternatively abutted against the first limit rib and the second limit rib is arranged on the knob at the position corresponding to the position between the first limit rib and the second limit rib, and the first limit rib, the second limit rib and the resisting block jointly form the limit structure.
In order to further facilitate the rotation of the valve rod in place by a user so as to realize effective switching of the waterway, a marking plate for prompting the rotation position of the knob is arranged between the knob and the valve body, the marking plate is connected with the valve body and provided with a through hole for the valve rod seat, the first limiting rib and the second limiting rib to penetrate, and the marking plate is provided with a marking structure for indicating the rotation position of the knob. Thus, the user can rotate the knob to the position corresponding to the identification structure according to the identification structure on the identification plate.
In order to ensure the tightness between the valve ball and the valve body, a first sealing ring adjacent to the water outlet end of the water inlet and in sealing contact with the valve ball and a second sealing ring adjacent to the water inlet end of the water outlet and in sealing contact with the valve ball are arranged in the accommodating cavity of the valve body. The first sealing ring can prevent water from leaking into the accommodating cavity from the water inlet when the water outlet is in fluid communication with the water outlet, and then water leaks from the water outlet.
The invention solves the second technical problem by adopting the technical scheme that the frost valve further comprises a driving component capable of pushing the valve rod to rotate by a small angle, a through hole for the valve rod to pass through is formed in the valve body, a containing groove communicated with the through hole is formed in the outer side of the through hole, and the driving component is arranged in the containing groove and can at least partially extend out of the containing groove to push the valve rod to rotate.
The driving assembly can have various structural forms, and preferably, the driving assembly is a temperature-sensing driving device and comprises a heating coil, paraffin and a push rod, wherein the paraffin and the push rod are sequentially arranged along the direction close to the valve rod, the heating coil is arranged on the peripheral wall of the paraffin, a protruding block is convexly arranged on the outer wall of the valve rod, and the protruding block is positioned on the path of the push rod moving towards the valve rod. When the water heater is not used by a user, the water heater is in a standby state or a shutdown state, the heating coil does not work, the paraffin is restored to a solid state, and the lug on the valve rod is pushed to return to an initial position by the reverse rotation of the valve rod.
In order to make contact all the time between paraffin and the ejector pin, drive assembly still includes the spring of locating the holding inslot, the spring both ends are supported respectively and are leaned on inner wall and the paraffin of holding inslot, and the spring makes and keeps contact state all the time between paraffin and the ejector pin, so not only is convenient for paraffin promote the ejector pin and remove towards the lug direction, also can prevent the hard interference between lug and the paraffin, because if not set up the spring, when paraffin resumes the solid state, there is the clearance between paraffin and the ejector pin, and at this moment the lug promotes the ejector pin and resets, the lug can strike the paraffin and cause the part damage, and set up the spring and then can solve this problem.
The invention solves the third technical problem by adopting the technical scheme that the gas water heater using the frost valve is characterized by further comprising a water heater body, wherein a water outlet of the valve body is in fluid communication with a water inlet end of the water heater body.
The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part to the second part along a flow path or/and be transported to the second part, and may be directly communicated between the first part and the second part, or may be indirectly communicated between the first part and the second part through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, or may be a chamber allowing the fluid to flow through, or a combination thereof.
Compared with the prior art, the invention has the advantages that 1, the valve rod is arranged, the valve rod drives the valve ball to rotate, the situation that the valve ball cannot rotate to switch waterways and cannot drain water is avoided, if the valve rod cannot drain water and can cause water in a pipeline to be frozen and cracked and then water is leaked, the valve rod is arranged, so that the valve rod has low dependence on electric elements and can be manually operated, 2, the through water passage is arranged in the ball valve, the internal waterway is simple in structure, firstly, the processing is convenient, secondly, the waterway switching is also convenient, otherwise, the internal waterway is complicated, the waterway switching is difficult for a user, and the situation that the valve ball cannot rotate in place and the waterway switching fails is also easily caused, and 3, the invention is provided with the driving assembly, and when the valve rod is not used for a long time, the driving assembly can partially extend out of the accommodating groove to push the valve rod to rotate at an angle, so that the difficulty in rotating the valve rod is relieved, and the waterway switching is convenient for the user to rotate the valve rod.
Drawings
FIG. 1 is a schematic structural view of an anti-freeze valve according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;
FIG. 3 is a cross-sectional view of FIG. 1 (valve ball in a first position);
FIG. 4 is a cross-sectional view of FIG. 1 (valve ball in a second position);
FIG. 5 is a cross-sectional view in another direction of FIG. 1;
FIG. 6 is an exploded view of FIG. 1;
FIG. 7 is a schematic view of the valve ball of FIG. 1;
FIG. 8 is a schematic view of the knob of FIG. 1;
FIG. 9 is a schematic view of the anti-freeze valve of FIG. 1 applied to a gas water heater;
FIG. 10 is a cross-sectional view of the freeze valve of example 2 of the present invention;
fig. 11 is a cross-sectional view of the drive assembly of fig. 10.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Example 1
As shown in fig. 1 to 9, the gas water heater of the preferred embodiment includes a water heater body 8 and an anti-freezing valve a, wherein the anti-freezing valve a includes a valve body 1, a valve ball 2, a valve rod 3 and a knob 4.
The valve body 1 is internally provided with a containing cavity 11, the valve body 1 is provided with a water inlet 12, a water outlet 13 and a water outlet 14 which are all communicated with the containing cavity 11, and the water outlet 13 of the valve body 1 is in fluid communication with the water inlet end of the water heater body 8.
The valve ball 2 is rotatably disposed in the accommodating cavity 11 and can rotate to a first position or a second position, a through water passing channel 21 is formed in the valve ball 2, that is, two ends of the water passing channel 21 penetrate through the outer wall of the valve ball 2, as shown in fig. 3, in a state that the valve ball 2 is in the first position, two ends of the water passing channel 21 are respectively in fluid communication with the water inlet 12 and the water outlet 13, as shown in fig. 4, and in a state that the valve ball 2 is in the second position, two ends of the water passing channel 21 are respectively in fluid communication with the water outlet 13 and the water outlet 14.
As shown in fig. 3 and 7, in the present embodiment, the water passage 21 includes a first passage 211 and a second passage 212 which each pass through the center of the valve ball 2 and vertically intersect, each of the first passage 211 and the second passage 212 has one end penetrating the valve ball 2, and one end of the first passage 211 penetrating the valve ball 2 and one end of the second passage 212 penetrating the valve ball 2 are both ends of the water passage 21. The center line of the water inlet end of the water outlet 13 and the center line of the water inlet end of the water outlet 14 are perpendicular to each other, and the center line of the water inlet end of the water outlet 13 and the center line of the water outlet end of the water inlet 12 are perpendicular to each other. Thus, the valve ball 2 can be switched between the first position and the second position by rotating 90 degrees clockwise or anticlockwise so as to realize waterway switching.
As can be seen from the above, only one water passage 21 (composed of the first passage 211 and the second passage 212) is provided in the valve ball 2 in this embodiment, which is convenient for processing and manufacturing, and the waterway is simple, so that the user can conveniently switch waterways.
One end of the valve rod 3 penetrates through the valve body 1 to be connected with the valve ball 2, a through hole 17 for the valve rod 3 to penetrate through is formed in the valve body 1, and a first slot 22 for the one end of the valve rod 3 to be inserted into is formed in the valve ball 2. The other end of valve rod 3 is located outside valve body 1 and is regarded as the drive end, and is equipped with the knob 4 of being convenient for rotate valve rod 3 on the drive end of valve rod 3, is equipped with the second slot 42 that supplies the drive end cartridge in of valve rod 3 on the knob 4, and the cross-section of the drive end of valve rod 3 is the D type, and the cross-section of second slot 42 is the D type with the drive end looks adaptation of valve rod 3, can prevent like this that valve rod 3 from rotating relative knob 4.
As shown in fig. 6 and 8, a limiting structure for limiting the rotation angle of the valve rod 3 is arranged between the knob 4 and the valve body 1, and the limiting structure can prevent the situation that a user cannot rotate in place and waterway switching fails. In this embodiment, the valve body 1 has a valve rod seat 19 corresponding to the valve rod 3, the valve rod 3 can rotate relative to the valve rod seat 19, the through hole 17 is partially formed on the valve rod seat 19, a first limit rib 15 and a second limit rib 16 extending axially are circumferentially and alternately arranged on the peripheral wall of the valve rod seat 19, a blocking block 41 capable of alternatively abutting against the first limit rib 15 and the second limit rib 16 (both refer to the first limit rib 15 and the second limit rib 16) is arranged on the knob 4 at a position corresponding to the first limit rib 15 and the second limit rib 16, and the first limit rib 15, the second limit rib 16 and the blocking block 41 jointly form the limit structure.
The rotation range of the stopper 41 is limited between the first limit rib 15 and the second limit rib 16, the valve ball 2 is in the first position in a state where the stopper 41 abuts against the first limit rib 15, and the valve ball 2 is in the second position in a state where the stopper 41 abuts against the second limit rib 16.
Of course, the limit structure can also be arranged between the valve rod 3 and the valve body 1, so that the stop block 41 needs to be arranged on the valve rod 3, and the first limit rib 15 and the second limit rib 16 are still arranged on the valve body 1.
As shown in fig. 2 and 6, a marking plate 5 for prompting the rotation position of the knob 4 is arranged between the knob 4 and the valve body 1, the marking plate 5 is connected with the valve body 1, a special-shaped through hole 51 for the valve rod seat 19, the first limiting rib 15 and the second limiting rib 16 to pass through is arranged on the marking plate 5, and a marking structure 52 for indicating the rotation position of the knob 4 is arranged on the marking plate 5. So that the user can rotate the knob 4 to the position corresponding to the identification plate 5 according to the identification structure 52 on the identification plate 5. In this embodiment, as shown in fig. 2, the marking structure 52 is in the form of "power on" and "freeze drain", but may be other structures, such as graduations.
As shown in fig. 3 and 4, a first sealing ring 61 which is adjacent to the water outlet end of the water inlet 12 and is in sealing contact with the valve ball 2, and a second sealing ring 62 which is adjacent to the water inlet end of the water outlet 14 and is in sealing contact with the valve ball 2 are arranged in the accommodating cavity 11 of the valve body 1.
The first sealing ring 61 is annular, and the wall surface facing the valve ball 2 is in arc transition connection with the inner hole of the first sealing ring 61, so that the first sealing ring 61 can be well matched with the valve ball 2, and water can be prevented from leaking into the accommodating cavity 11 and flowing out from the water outlet 13 to cause water leakage when the water outlet 13 is in fluid communication with the water outlet 14.
The second sealing ring 62 is provided with a stepped hole with a larger diameter towards the valve ball 2, each hole of the stepped hole is in arc transition connection with the corresponding wall surface of the second sealing ring 62 towards the valve ball 2, so that the second sealing ring 62 can be well matched with the valve ball 2, and water cannot leak out from the water outlet 14 when the water outlet 13 is in fluid communication with the water inlet 12.
As shown in fig. 1 and 2, in this embodiment, the valve body 1 includes a hollow pipe body 1a and a valve cover 1b screwed on the pipe body, the water inlet 12 and the water outlet 13 are opened on the pipe body 1a, and the water outlet 14 is opened on the valve cover 1b, so that the valve cover 1b is convenient to detach and a drain pipe is subsequently added at the water outlet 14.
Example 2
Embodiment 2 differs from embodiment 1 in that a drive assembly 7 is also provided.
As shown in fig. 10 and 11, a receiving groove 18 communicated with the through hole 17 is radially arranged at the outer side of the through hole 17, in this embodiment, the receiving groove 18 is formed on the first limiting rib 15, and the driving assembly 7 is arranged in the receiving groove 18 and can extend out of the receiving groove 18 at least partially to push the valve rod 3 to rotate. The driving assembly 7 is a temperature-sensing driving device and comprises a spring 74, a heating coil 71, paraffin 72 and a push rod 73, wherein the paraffin 72 and the push rod 73 are sequentially arranged along the direction close to the valve rod 3, the heating coil 71 is arranged on the peripheral wall of the paraffin 72, the paraffin 72 can be accommodated in a bag body, a bump 31 is convexly arranged on the outer wall of the valve rod 3, the bump 31 is positioned on the path of the push rod 73 moving towards the valve rod 3, and two ends of the spring 74 respectively abut against the inner wall of the accommodating groove 18 and the paraffin 72.
The heating coil 71 is electrically connected with a controller (a PLC controller can be adopted) of the water heater, when a user uses the water heater, the controller receives signals and controls the heating coil 71 to work, the paraffin 72 undergoes phase change expansion so as to push the ejector rod 73 to move towards the valve rod 3, the projection 31 on the valve rod 3 can be pushed in the moving process of the ejector rod 73 so as to enable the valve rod 3 to rotate at a micro angle, then the valve rod 3 can be easily rotated, when the user does not use the water heater, the water heater is in a standby state or a shutdown state, the controller receives signals and controls the heating coil 71 to not work, the paraffin 72 is recovered to be solid, and the projection 31 can push the ejector rod 73 to return to an initial position by rotating in the opposite direction of the valve rod 3. Of course, the operation of the heating coil 71 may be controlled by other means.
To facilitate the projection 31 to push the jack 73, corners of the jack 73 toward the end of the projection 31 may be provided with an arc surface.
Of course, the driving assembly 7 may also be an electric push rod.
Claims (9)
1. An anti-freeze valve comprising
The valve body (1) is internally provided with a containing cavity (11), and the valve body (1) is provided with a water inlet (12), a water outlet (13) and a water outlet (14) which are all communicated with the containing cavity (11);
The valve ball (2) can be rotatably arranged in the accommodating cavity (11) and can rotate to a first position or a second position, the valve ball (2) is provided with a through water passing channel (21), two ends of the water passing channel (21) are respectively correspondingly in fluid communication with the water inlet (12) and the water outlet (13) in a state of the valve ball (2) in the first position, and two ends of the water passing channel (21) are respectively correspondingly in fluid communication with the water outlet (13) and the water outlet (14) in a state of the valve ball (2) in the second position;
characterized in that it also comprises
One end of the valve rod (3) penetrates through the valve body (1) and is connected with the valve ball (2), and the other end of the valve rod is positioned outside the valve body (1) and serves as a driving end;
A first sealing ring (61) which is adjacent to the water outlet end of the water inlet (12) and is in sealing contact with the valve ball (2) is arranged in the accommodating cavity (11) of the valve body (1), the first sealing ring (61) is annular, and the wall surface of the first sealing ring (61) facing the valve ball (2) is in arc transition connection with the inner hole of the first sealing ring (61);
The anti-freezing valve further comprises a driving assembly (7) capable of pushing the valve rod (3) to rotate by a small angle, a through hole (17) for the valve rod (3) to pass through is formed in the valve body (1), a containing groove (18) communicated with the through hole (17) is formed in the outer side of the through hole (17), and the driving assembly (7) is arranged in the containing groove (18) and can at least partially extend out of the containing groove (18) to push the valve rod (3) to rotate.
2. The frost valve according to claim 1, wherein the water passing passage (21) comprises a first passage (211) and a second passage (212) which pass through the center of the valve ball (2) and vertically intersect, one end of each of the first passage (211) and the second passage (212) passes through the valve ball (2), the center line of the water inlet end of the water outlet (13) and the center line of the water inlet end of the water outlet (14) are mutually perpendicular, and the center line of the water inlet end of the water outlet (13) and the center line of the water outlet end of the water inlet (12) are mutually perpendicular.
3. The frost valve according to claim 1, wherein a knob (4) for facilitating rotation of the valve rod (3) is provided at a driving end of the valve rod (3), and a limit structure for limiting a rotation angle of the valve rod (3) is provided between the knob (4) and the valve body (1).
4. The freeze valve according to claim 3, wherein the valve body (1) has a valve rod seat (19) at a position corresponding to the valve rod (3) for the valve rod (3) to pass through and rotate relatively, a first limit rib (15) and a second limit rib (16) extending axially are circumferentially and alternately arranged on a peripheral wall of the valve rod seat (19), a resisting block (41) capable of being abutted against the first limit rib (15) and the second limit rib (16) is arranged at a position corresponding to the knob (4), and the first limit rib (15), the second limit rib (16) and the resisting block (41) jointly form the limit structure.
5. The frost valve according to claim 4, wherein a marking plate (5) for prompting the rotation position of the knob (4) is arranged between the knob (4) and the valve body (1), the marking plate (5) is connected with the valve body (1), a through hole (51) for the valve rod seat (19), the first limiting rib (15) and the second limiting rib (16) to pass through is formed in the marking plate (5), and a marking structure (52) for indicating the rotation position of the knob (4) is arranged on the marking plate (5).
6. The anti-freeze valve according to claim 1, wherein a second sealing ring (62) which is adjacent to the water inlet end of the water outlet (14) and is in sealing contact with the valve ball (2) is arranged in the accommodating cavity (11) of the valve body (1).
7. The freeze valve according to claim 1, wherein the driving assembly (7) is a temperature-sensing driving device and comprises a heating coil (71), paraffin (72) and a push rod (73), the paraffin (72) and the push rod (73) are sequentially arranged along the direction close to the valve rod (3), the heating coil (71) is arranged on the peripheral wall of the paraffin (72), a lug (31) is convexly arranged on the outer wall of the valve rod (3), and the lug (31) is positioned on the path of the push rod (73) moving towards the valve rod (3).
8. The anti-freeze valve according to claim 7, wherein the drive assembly (7) further comprises a spring (74) arranged in the accommodating groove (18), and two ends of the spring (74) respectively abut against the inner wall of the accommodating groove (18) and the paraffin (72).
9. A gas water heater using the frost valve according to any one of claims 1 to 8, further comprising a water heater body (8), wherein the water outlet (13) of the valve body (1) is in fluid communication with the water inlet end of the water heater body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379411.5A CN111022703B (en) | 2019-12-27 | 2019-12-27 | Antifreeze valve and gas water heater using the antifreeze valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379411.5A CN111022703B (en) | 2019-12-27 | 2019-12-27 | Antifreeze valve and gas water heater using the antifreeze valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111022703A CN111022703A (en) | 2020-04-17 |
| CN111022703B true CN111022703B (en) | 2025-06-17 |
Family
ID=70196578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911379411.5A Active CN111022703B (en) | 2019-12-27 | 2019-12-27 | Antifreeze valve and gas water heater using the antifreeze valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111022703B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112915443B (en) * | 2021-02-26 | 2022-06-21 | 西拓能源集团有限公司 | An intelligent fire protection device |
| CN115405728B (en) * | 2021-12-31 | 2025-10-31 | 青岛经济技术开发区海尔热水器有限公司 | Water inlet device and water heater |
| CN116608306B (en) * | 2023-06-05 | 2026-02-17 | 宁波方太厨具有限公司 | Antifreezing device and water heater using same |
| CN116659090B (en) * | 2023-06-08 | 2025-08-29 | 宁波方太厨具有限公司 | Antifreeze device and water heater including the same |
| CN116772425B (en) * | 2023-06-19 | 2026-01-09 | 宁波方太厨具有限公司 | Antifreeze device and water heater containing it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851765Y (en) * | 2005-12-07 | 2006-12-27 | 中山华帝燃具股份有限公司 | Antifreezing drip valve for water heater |
| CN205226455U (en) * | 2015-12-03 | 2016-05-11 | 浙江博民机电股份有限公司 | Take ball valve of filter screen |
| CN211820863U (en) * | 2019-12-27 | 2020-10-30 | 宁波方太厨具有限公司 | Anti-freezing valve and gas water heater using same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4974637A (en) * | 1989-10-10 | 1990-12-04 | Garfield Clark | Self draining valve |
| JP2536950B2 (en) * | 1990-05-14 | 1996-09-25 | アスカ工業 株式会社 | Plug valve |
| JP2002098241A (en) * | 2000-09-20 | 2002-04-05 | Kurimoto Ltd | Butterfly valve |
| CN202708175U (en) * | 2012-04-18 | 2013-01-30 | 佛山市日丰企业有限公司 | Valve ball and frost valve provided with the same |
| CN202561102U (en) * | 2012-05-16 | 2012-11-28 | 赵静 | Ball valve with bidirectional limiting device |
| CN103234057B (en) * | 2013-04-04 | 2015-09-16 | 邱金全 | A kind of Novel high-pressure micro-torque ball valve |
-
2019
- 2019-12-27 CN CN201911379411.5A patent/CN111022703B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2851765Y (en) * | 2005-12-07 | 2006-12-27 | 中山华帝燃具股份有限公司 | Antifreezing drip valve for water heater |
| CN205226455U (en) * | 2015-12-03 | 2016-05-11 | 浙江博民机电股份有限公司 | Take ball valve of filter screen |
| CN211820863U (en) * | 2019-12-27 | 2020-10-30 | 宁波方太厨具有限公司 | Anti-freezing valve and gas water heater using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111022703A (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111022703B (en) | Antifreeze valve and gas water heater using the antifreeze valve | |
| CN211823162U (en) | Water inlet connector and water heater using same | |
| CN211820863U (en) | Anti-freezing valve and gas water heater using same | |
| CN211821206U (en) | Water inlet connector and gas water heater using same | |
| CN210240648U (en) | Anti-freezing water valve and condensation water heater with same | |
| CN217355674U (en) | Air inlet stop valve module and automatic anti-freezing gas water heater | |
| CN215522089U (en) | Anti-freezing valve and water heater applying same | |
| CN204459227U (en) | In-wall antifreezing draw-off valve | |
| CN215522059U (en) | Anti-freezing valve and water heater applying same | |
| CN104976771A (en) | Gas water heater water discharging defroster apparatus | |
| CN215522066U (en) | Anti-freezing valve and water heater applying same | |
| CN215522068U (en) | Anti-freezing valve and water heater applying same | |
| CN215522082U (en) | Anti-freezing valve and water heater applying same | |
| CN216078402U (en) | Anti-freezing valve and water heater applying same | |
| CN215522075U (en) | Anti-freezing valve and water heater applying same | |
| CN215522081U (en) | Anti-freezing valve and water heater applying same | |
| CN218544858U (en) | Anti-freezing gas water heater | |
| CN215861871U (en) | Anti-freezing valve and water heater applying same | |
| CN215522078U (en) | Anti-freezing valve and water heater applying same | |
| CN215568068U (en) | Anti-freezing valve and water heater applying same | |
| CN216306792U (en) | Anti-freezing valve and water heater applying same | |
| CN116772425A (en) | Antifreezing device and water heater comprising same | |
| CN212299405U (en) | Household water storage type electric water heater | |
| CN212720282U (en) | Gas water heater with lever transmission anti-soaking function | |
| CN212566263U (en) | Gas water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |