CN110513563B - Water inlet connector and water heater with same - Google Patents
Water inlet connector and water heater with same Download PDFInfo
- Publication number
- CN110513563B CN110513563B CN201910794943.9A CN201910794943A CN110513563B CN 110513563 B CN110513563 B CN 110513563B CN 201910794943 A CN201910794943 A CN 201910794943A CN 110513563 B CN110513563 B CN 110513563B
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- Prior art keywords
- mounting hole
- valve core
- water
- water inlet
- flow channel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 182
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 239000008358 core component Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
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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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Turbines (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to a water inlet joint and a water heater using the water inlet joint, wherein the water inlet joint comprises a pipe body provided with a first mounting hole, a first valve core assembly is arranged in the first mounting hole, the first valve core assembly comprises a first valve core capable of moving towards a direction far away from a flow passage under the action of water pressure and a first driving piece which enables the first valve core to keep a trend of moving towards the flow passage, the second end of the first valve core is a piston and is in sealing connection with the inner side wall of the first mounting hole, and the first end of the first valve core extends into the flow passage; the plugging plate is arranged in the flow channel and is rotationally connected with the first end of the first valve core, and the plugging plate is in two states of axial inclination or vertical inclination relative to the pipe under the action of the first valve core and plugs the flow channel under the inclined state. Therefore, when the pressure is increased, the plugging plate can timely disconnect the water heater from the water source, and water leakage is avoided.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to a water inlet connector and a water heater with the water inlet connector.
Background
The existing domestic water generally has the problem of pressure fluctuation due to reasons such as water supply, terminal use and the like, and for some connecting water pipes in a normally open state, for example, a water inlet pipe of a water heater, a water inlet end is a normally open valve, a water outlet end is a normally closed valve, and in a non-working state, if the user household water pressure is too high, the pressure bearing capacity weak part (such as plastic parts such as a water valve) of a pipeline is cracked, so that the whole machine leaks water, floor water soaking, electric leakage and the like are caused.
Aiming at the problems, chinese patent No. ZL20151230802. X (bulletin No. CN 204592450U) discloses a safety valve of an electric water heater, which comprises a valve body, wherein a water inlet cavity and a pressure release cavity are arranged on the valve body, a water inlet channel is arranged between the water inlet cavity and the pressure release cavity, a water discharge nozzle is arranged on the pressure release cavity, a bypass channel is arranged on the valve body, and the bypass channel is communicated with the water inlet cavity; the pressure release chamber deviates from the inlet chamber end and is provided with sealing nut, sealing nut internal face middle part is provided with the connection screw, the connection screw internal connection has connecting screw, the connecting screw stretches out and connects the integrative round bulge loop that sets up on the section that stretches out of screw, the welding has reset spring on the bulge loop, the welding of reset spring inner has the connecting block, the rubber body has been cup jointed on the connecting block, and the delivery port of inlet channel is plugged up to the rubber body under reset spring's effect. When the pressure in the water inlet cavity is overlarge, the return spring is compressed, so that part of water in the water inlet cavity is discharged from the water discharge nozzle after passing through the pressure relief cavity, and pressure relief is performed.
The safety valve can only release pressure, but can not simultaneously close the water inlet, so that water in the flow channel can enter the water inlet pipe continuously and then run out from the cracking part, the risk of water leakage still exists, serious water soaking is caused, and property loss and safety problems such as water soaking of the bottom plate, electric leakage and the like are caused.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a water inlet joint capable of closing a water inlet channel when the pressure in a water pipe rises.
The second technical problem to be solved by the invention is to provide a water inlet joint with better water inlet channel closing effect as the water pressure is higher.
The third technical problem to be solved by the invention is to provide the water inlet connector which can not only close the water inlet channel but also release pressure when the pressure in the water pipe rises.
The fourth technical problem to be solved by the invention is to provide a water heater capable of closing a water inlet channel when the pressure in a water pipe rises.
In order to solve the first technical problem, the invention adopts the following technical scheme: a water inlet joint comprises a pipe body, a water inlet, a water outlet and an axial flow passage communicated with the water inlet and the water outlet;
characterized in that it also comprises
The first mounting hole is arranged on the peripheral wall of the pipe body, is communicated with the flow passage of the pipe body, and is closed at the end part far away from the flow passage;
The first valve core assembly is arranged in the first mounting hole and comprises a first valve core capable of moving towards a direction far away from the flow channel under the action of water pressure and a first driving piece which enables the first valve core to keep a trend of moving towards the flow channel, the second end of the first valve core is a piston and is in sealing connection with the inner side wall of the first mounting hole, and the first end of the first valve core extends into the flow channel;
the plugging plate is arranged in the flow channel and is rotationally connected with the first end of the first valve core, and the plugging plate is in an axial inclined state or a vertical state relative to the pipe under the action of the first valve core and plugs the flow channel under the inclined state.
In order to enable the plugging plate to plug the flow passage, a second mounting hole which is communicated with the flow passage of the pipe body and is arranged opposite to the first mounting hole is arranged on the peripheral wall of the pipe body, and the pipe body is provided with a small-diameter part at the downstream position corresponding to the plugging plate along the water flow direction and is provided with an inclined pipe orifice matched with the inclined state of the plugging plate;
The plugging plate enters the second mounting hole under the action of the movement of the first valve core towards the second mounting hole and is in a state of being vertical to the axial direction of the pipe body;
The plugging plate deflects away from the second mounting hole under the action of the movement of the first valve core in the direction away from the second mounting hole, is in an inclined state and plugs the inclined pipe orifice. The inclined pipe orifice is matched with the inclined state of the plugging plate, so that the plugging tightness between the plugging plate and the inclined pipe orifice is ensured, and water is prevented from flowing to the water outlet.
In order to solve the second technical problem, the invention adopts the following technical scheme: the first end of first case is a pair of connecting rod that extend each other in parallel, the outside extension of second end both sides that are close to of shutoff board has the pivot that is perpendicular with aforesaid body axis, and this pivot is connected with the rotation of corresponding connecting rod, the first end of shutoff board is the free end. Therefore, after the plugging plate is separated from the second mounting hole, the first end of the plugging plate is a free end, and is inclined by water pressure or water flow impact energy, so that the inclined pipe orifice is plugged, and the larger the water pressure is, the larger the force pressed on the inclined pipe orifice is, and the better the plugging effect on the inclined pipe orifice is.
In order to further improve the plugging effect on the inclined pipe orifice, the end face of the plugging plate facing the inclined pipe orifice is provided with a third sealing piece matched with the inclined pipe orifice.
In order to enable the plugging plate to conveniently enter the second mounting hole when the plugging plate is restored to the vertical state, the second mounting hole is in smooth transition connection between the side wall of the port close to the flow channel and the side wall of the flow channel.
In order to solve the third technical problem, the technical scheme adopted by the invention is as follows: a second valve core assembly is arranged in the second mounting hole, and the second valve core assembly comprises a second valve core which can be slidably arranged in the second mounting hole and is in sealing connection with at least partial inner side wall of the second mounting hole; and under the state that the plugging plate is inclined relative to the pipe body, the second valve core moves towards the direction of the flow channel and is separated from and connected with the second mounting hole in a sealing way, so that two ports of the second mounting hole are in a communicating state.
In order to enable the second valve core to move when the plugging plate is inclined, the second end of the plugging plate is pressed against the second valve core, and a first spring which enables the second valve core to keep moving towards the direction of the flow channel is arranged in the second mounting hole. When the plugging plate moves towards the flow channel, the pressure of the plugging plate to the second valve core is reduced or eliminated, and the second valve core moves under the action of the first spring so as to be separated from and connected with the second mounting hole in a sealing way, so that pressure relief is performed.
In order to enable the second valve core to be in sealing connection with the second mounting hole when the plugging plate is in a vertical state, the water inlet joint further comprises a second spring, one end of the second spring is fixed on the end face of the second valve core, and the other end of the second spring is a free end and is opposite to the plugging plate. The second spring transmits the pressing force on the plugging plate to the second valve core, and the second spring and the plugging plate always keep a contact state.
In order to enable the second valve core to be in sealing connection or be separated from sealing connection with the second mounting hole, the inside of the second mounting hole is axially divided into a large-diameter area close to the flow channel and a small-diameter area far away from the flow channel, the middle of the second valve core is a piston body, and the piston body is in sealing connection with the small-diameter area and is provided with a water passing gap with the large-diameter area. When the piston body is in sealing connection with the small-diameter area, water cannot be discharged from the second mounting hole, and when the piston body moves to the large-diameter area, water flows to the small-diameter area through the water passing gap and finally is discharged from the water discharge hole of the second mounting hole.
In order to be convenient for set up the second case subassembly in the second mounting hole, this water inlet joint still includes installation cover and drainage connector, thereby installation cover one end detachably inserts in the second mounting hole with second mounting hole internal portion divide into big footpath region with the path is regional, the installation cover other end extends the second mounting hole and links to each other with the drainage connector, and this drainage connector is located the body outside, the drainage hole has been seted up on the drainage connector, the piston body with the inner wall sliding seal of installation cover links to each other. The pipe body and the installation sleeve are designed in a split mode, and after the second valve core assembly is assembled in the installation sleeve, the installation sleeve is in threaded connection with the second installation hole of the pipe body.
In order to guide and limit the moving track of the second valve core, a partition plate is transversely arranged in the mounting sleeve, a water passing port through which water flows is formed between the partition plate and the inner wall of the mounting sleeve and/or on the partition plate, the piston body is connected with a second valve rod which is inserted on the partition plate in a sliding manner, and a first spring is arranged between the piston body of the second valve core and the partition plate.
In order to facilitate the arrangement of the first valve core assembly in the first mounting hole, a limit sleeve is detachably inserted into the end part of the first mounting hole far away from the flow channel, so that the end part of the first mounting hole is closed; in addition, after the first valve core component is arranged in the first mounting hole, the limit sleeve is in threaded connection with the first mounting hole of the pipe body.
The first driving part can have various structural forms, and is structurally simple, and the first driving part is a spring piece, a third spring or a magnetic assembly, and the magnetic assembly comprises a second magnetic part and a first magnetic part which are oppositely arranged and homopolar opposite to each other.
In order to solve the fourth technical problem, the technical scheme adopted by the invention is as follows: the water heater applying the water inlet joint is characterized in that: the water heater also comprises a water heater body, and the water outlet of the water inlet joint is connected with the water inlet end of the water heater body.
Compared with the prior art, the invention has the advantages that: 1. the water inlet connector comprises a first valve core component and a plugging plate, wherein the first valve core of the first valve core component can move under the action of water pressure, so that the plugging plate is driven to move, and the plugging plate can obliquely block a flow passage between a water inlet and a water outlet, namely, when the pressure is increased, the plugging plate can timely disconnect the water heater from a water source, and the water leakage phenomenon is avoided; 2. the sealing connection between the second valve core and the second mounting hole fails in the state that the sealing plate blocks the flow passage, and water cannot continue to flow to the water outlet and is discharged from the second mounting hole due to the action of the sealing plate, so that the pressure release effect is achieved, and compared with the existing mode of only releasing pressure without closing the water inlet passage, the water leakage can be effectively prevented, and the safety of a waterway is ensured; 3. because the position that the shutoff board is close to its second end links to each other with the connecting rod rotation, and first end is the free end, when the shutoff board is pulled by first case, the second end of shutoff board moves towards the runner, the shutoff board receives the effect of water pressure and inclines towards the slope mouth of pipe to shield the slope mouth of pipe, and the water pressure is bigger, the effect is better to the orificial shielding of slope, effectively guarantees waterway safety.
Drawings
FIG. 1 is a schematic view of a water heater according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view at A of FIG. 1;
FIG. 3 is a schematic view of the water receiving connector of FIG. 1;
FIG. 4 is a cross-sectional view of FIG. 3 (the angled nozzle not obscured);
FIG. 5 is a cross-sectional view of FIG. 3 (the angled nozzle is obscured);
FIG. 6 is an enlarged view at B of FIG. 5;
FIG. 7 is a schematic diagram of the second valve core in FIG. 3;
FIG. 8 is a schematic view of the first valve spool, the plugging plate and the connecting rod of FIG. 3;
FIG. 9 is a schematic view of the tube body in FIG. 3;
FIG. 10 is a cross-sectional view of the water receiving connector of embodiment 2 of the present invention (the inclined nozzle is not shielded);
FIG. 11 is a cross-sectional view of the water joint of embodiment 2 of the present invention (the inclined nozzle is hidden);
FIG. 12 is a cross-sectional view of the water joint of embodiment 3 of the present invention (the inclined nozzle is not shielded);
FIG. 13 is a cross-sectional view of the water joint of embodiment 3 of the present invention (the inclined nozzle is hidden);
FIG. 14 is a cross-sectional view of the water receiving connector of embodiment 4 of the present invention (the inclined nozzle is not masked);
FIG. 15 is a cross-sectional view of the water joint of embodiment 4 of the present invention (the inclined nozzle is hidden);
Fig. 16 is a cross-sectional view of the water receiving connector of embodiment 5 of the present invention (the inclined nozzle is not masked).
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 water heater of the preferred embodiment includes a water heater body 9 and a water inlet connector a, the water inlet connector a includes a pipe body 1, two ends of the pipe body 1 are opened with a water inlet 11 and a water outlet 12, the pipe body 1 has an axial flow channel 13 communicating the water inlet 11 and the water outlet 12, the water inlet 11 of the pipe body 1 is connected with a domestic water pipe (i.e. a water source), and the water outlet 12 of the pipe body 1 is connected with a water inlet end of the water heater body 9.
The water inlet joint further comprises a second valve core assembly, a first valve core assembly and a plugging plate 4, wherein a second mounting hole 14 and a first mounting hole 15 which are oppositely arranged are formed in the peripheral wall of the pipe body 1, the second mounting hole 14 and the first mounting hole 15 are communicated with the flow channel 13 of the pipe body 1, the second valve core assembly is arranged in the second mounting hole 14, and the first valve core assembly is arranged in the first mounting hole 15.
The end part of the first mounting hole 15 far away from the flow channel 13 is detachably inserted with a limit sleeve 8, so that the end part of the first mounting hole 15 far away from the flow channel 13 is closed, and the inner side wall of the first mounting hole 15 is provided with a step 18.
The first valve element assembly comprises a first valve element 31 which can move away from the flow channel 13 under the action of water pressure and a first driving member which keeps the first valve element 31 moving towards the flow channel 13, and the first valve element 31 slides in the area between the limit sleeve 8 and the step 18.
The second end of the first valve element 31 is a piston 311, the piston 311 is connected with the inner side wall of the first mounting hole 15 in a sealing way through a first sealing ring 313, the first sealing ring 313 is arranged on the peripheral wall of the piston 311, and the first end of the first valve element 31 is a pair of connecting rods 33 extending into the flow channel 13 in parallel with each other.
The plugging plate 4 is disposed in the flow channel 13, two sides of the plugging plate 4 adjacent to the second end 4a extend outwards to form a rotating shaft 331 perpendicular to the axis of the pipe body 1, the rotating shaft 331 is rotationally connected with the corresponding connecting rod 33, and the first end 4b of the plugging plate 4 is a free end, so that the plugging plate 4 has two states of being inclined or perpendicular relative to the axial direction of the pipe body 1 under the action of the first valve core 31.
Under the action of the first valve core 31 moving towards the second mounting hole 14, the second end 4a of the plugging plate 4 enters the second mounting hole 14 to enable the plugging plate 4 to be in a state of being vertical to the axial direction of the pipe 1; the second end 4a of the blocking plate 4 is moved away from the second mounting hole 14 by the first valve element 31 moving away from the second mounting hole 14 to deflect the blocking plate 4.
The pipe body 1 is provided with a small-diameter part 5 at the downstream position corresponding to the plugging plate 4 along the water flow direction, and is provided with an inclined pipe orifice 51 matched with the inclined state of the plugging plate 4, the inclined pipe orifice 51 is arranged on the small-diameter part 5, and the inner diameter of the small-diameter part 5 is smaller than the inner diameter of the pipe body 1; because the position of the plugging plate 4 adjacent to the second end 4a thereof is rotationally connected with the connecting rod 33, the first end 4b is a free end, when the plugging plate 4 is pulled by the first valve core 31 and the second end 4a of the plugging plate 4 moves towards the flow channel 13, the plugging plate 4 is inclined towards the inclined nozzle 51 under the action of water pressure or water flow impact, so that the inclined nozzle 51 is shielded to block the flow channel 13; and the greater the water pressure, the better the shielding effect of the shutoff plate 4 against the inclined nozzle 51.
In addition, the end face of the plugging plate 4 facing the inclined nozzle 51 is provided with a third sealing element 42 adapted to the inclined nozzle 51.
In addition, the second mounting hole 14 is in smooth transition connection between the side wall of the port close to the flow channel 13 and the side wall of the flow channel 13, so that the plugging plate 4 enters the second mounting hole 14 from an inclined state to restore to a vertical state.
In this embodiment, the first driving member is a spherical elastic piece 32a, two ends of the elastic piece 32a respectively abut against the first valve core 31 and the stop collar 8, when the water pressure is normal, the elastic piece 32a is in a concave state toward the flow channel 13, as shown in fig. 4, and when the water pressure is increased, the elastic piece 32a is in a concave state toward a direction away from the flow channel 13, as shown in fig. 5.
The second valve core assembly comprises a second valve core 21 slidably arranged in the second mounting hole 14 and in sealing connection with at least partial inner side wall of the second mounting hole 14, and a first spring 22 for keeping the second valve core 21 moving towards the direction of the flow channel 13, wherein the second end 4a of the plugging plate 4 is pressed against the second valve core 21, and in the state that the plugging plate 4 is inclined relative to the pipe 1, the second valve core 21 moves towards the direction of the flow channel 13 and is in sealing connection with the second mounting hole 14, so that two ports of the second mounting hole 14 are in a communicating state, and water can flow out from the second mounting hole 14 for pressure relief.
In this embodiment, the end of the second mounting hole 14 far away from the flow channel 13 is in threaded connection with the mounting sleeve 6, the other end of the mounting sleeve 6 extends out of the second mounting hole 14 to be in threaded connection with the drain connector 7, the drain connector 7 is located outside the pipe body 1, the drain connector 7 is provided with the drain hole 71, and a gasket 71 is arranged between the drain connector 7 and the mounting sleeve 6. A partition plate 61 is transversely provided in the mounting sleeve 6, and a water passing port 6a through which water flows is formed between the partition plate 61 and the inner wall of the mounting sleeve 6, and of course, the water passing port 6a may be opened at the same time or only on the partition plate 61.
One end of the mounting sleeve 6 is inserted into the second mounting hole 14 in such a way that the inside of the second mounting hole 14 is divided into a large-diameter region 14a and a small-diameter region 14b, that is, the region in which the mounting sleeve 6 is inserted into the second mounting hole 14 is the small-diameter region 14b, the other region in the second mounting hole 14 is the large-diameter region 14a, and the large-diameter region 14a is closer to the flow passage 13 than the small-diameter region 14b along the axial direction of the second mounting hole 14.
The second valve body 21 includes a second valve stem 211, a piston body 210 radially formed at the middle of the second valve stem 211, and a second seal ring 213 provided at the outer circumference of the piston body 210, the piston body 210 is sealingly connected to a small diameter region 14b (the small diameter region is the inner wall of the mounting sleeve 6) through the second seal ring 213, a water gap is provided between the piston body 210 and the large diameter region 14a, and the first spring 22 is provided between the piston body 210 of the second valve body 21 and the partition 61.
The second valve rod 211 is sleeved with a second spring 43, one end of the second spring 43 is fixed on the end face of the second valve core 21, the other end of the second spring is a free end, and the other end of the second spring is opposite to the plugging plate 21, so that the second end 4a of the plugging plate 4 is abutted against the second valve core 21 through the second spring 43.
When the piston body 210 is located in the large diameter area 14a, the flow channel 13 is communicated with the drain hole 71 (i.e. two ports of the second mounting hole 14 are communicated), and water in the pipe body 1 flows in from the second mounting hole 14 and flows out through the water gap, the water passing port 6a and the drain hole 71 in sequence; when the piston body 210 is positioned in the small diameter region 14b, the piston body 210 is in sealing connection with the mounting sleeve 6, and the water flow passage between the two ports of the second mounting hole 14 is blocked by the piston body 210.
The working process of the water inlet joint of the embodiment is as follows: after the water pressure becomes large, the first valve core 31 drives the connecting rod 33 to move away from the flow channel 13 under the action of the water pressure, the elastic sheet 32a deforms to the state of fig. 5, the plugging plate 4 is driven to move away from the second mounting hole 14 in the moving process of the connecting rod 33, after the plugging plate 4 is separated from the second mounting hole 14, the plugging plate 4 naturally inclines to one side under the action of the water pressure or the water flow impact, so that the inclined pipe orifice 51 is sealed, and the higher the pressure is, the stronger the tightness of the plugging plate 4 is;
After the plugging plate 4 moves upwards, the original pressing force to the second valve core 21 disappears, the second valve core 21 moves towards the flow channel 13 until the piston body 210 is separated from the mounting sleeve 6, water in the pipe body 1 flows in from the second mounting hole 14 and flows out through the water gap, the water outlet 6a and the water draining hole 71 in sequence, as shown by an arrow in fig. 4, so that pressure relief is performed, and the safety of the whole pipeline is ensured;
After the water pressure is recovered to be normal, the elastic force of the elastic piece 32a is released to be restored to the state of fig. 4 and pushes the first valve core 31 to move towards the flow channel 13, in the process, the blocking plate 4 gradually leaves the inclined pipe orifice 51 under the action of the connecting rod 33 until the blocking plate is in a state of being vertical to the axial direction of the pipe body 1 and the second end 4a enters the second mounting hole 14, meanwhile, the second valve core 21 is pressed by the blocking plate 4 to move towards the direction away from the flow channel 13 until the piston body 210 moves into the mounting sleeve 6 and is in sealing connection with the mounting sleeve 6, at the moment, the two ports of the second mounting hole 14 are blocked by the piston body 210, and fluid communication between the water inlet 11 and the water outlet 12 is realized.
Example 2
Example 2 differs from example 1 in that:
As shown in fig. 10 and 11, the first valve core 31 further includes a first valve rod 311, the first valve core 31 is formed along the radial direction of the first valve rod 311, and the first valve rod 311 is slidably inserted on the stop collar 8, so as to limit and guide the movement track of the first valve core 31; the first driving member is a third spring 32b, and the third spring 32b is sleeved on the first valve rod 311, and two ends of the third spring respectively abut against the first valve core 31 and the stop collar 8.
After the water pressure becomes high, the first valve core 31 drives the connecting rod 33 to move away from the flow channel 13, the third spring 32b is compressed and deformed to the state of fig. 11, and when the water pressure is normal, the elastic force of the third spring 32b is released to push the first valve core 31 to move towards the flow channel 13 until the first valve core 31 abuts against the step 18, as shown in fig. 10.
Example 3
Example 3 differs from example 2 in that:
As shown in fig. 12 and 13, the first driving member is a magnetic assembly, the magnetic assembly includes a second magnetic member 321c and a first magnetic member 322c which are disposed opposite to each other and have the same polarity, the second magnetic member 321c is disposed on the stop collar 8, and the first magnetic member 322c is disposed on the first valve core 31; in addition, the step 18 is not provided in the first mounting hole 15.
When the pressure of the water pressure is greater than the repulsive force between the second magnetic element 321c and the first magnetic element 322c, the first valve core 31 drives the connecting rod 33 to move away from the flow channel 13, and the first magnetic element 322c moves towards the second magnetic element 321c, as shown in fig. 13; when the water pressure is normal, the first magnetic member 322c moves away from the second magnetic member 321c under the repulsive force, and drives the first valve core 31 to move synchronously, as shown in fig. 14.
Example 4
As shown in fig. 14 and 15, embodiment 4 differs from embodiment 1 in that: the second spring 43 is not provided, and the blocking plate 4 is in direct contact with the second valve element 21.
Example 5
As shown in fig. 16, embodiment 5 differs from embodiment 1 in that: the plugging plate 4 shields the inclined pipe orifice 51, and the water inlet joint is not provided with a second valve core component and cannot be depressurized; the "shutoff plate 4 of this embodiment conceals the angled nozzle 51" in the same manner as in embodiment 1.
Claims (12)
1. A water inlet joint, comprising
The pipe body (1) is provided with a water inlet (11), a water outlet (12) and an axial flow channel (13) communicated with the water inlet and the water outlet;
characterized in that it also comprises
The first mounting hole (15) is arranged on the peripheral wall of the pipe body (1) and communicated with the flow channel (13) of the pipe body (1), and the end part far away from the flow channel (13) is closed;
The first valve core assembly is arranged in the first mounting hole (15) and comprises a first valve core (31) capable of moving towards a direction far away from the flow channel (13) under the action of water pressure and a first driving piece for enabling the first valve core (31) to keep a trend of moving towards the flow channel (13), the second end of the first valve core (31) is a piston (311) and is in sealing connection with the inner side wall of the first mounting hole (15), and the first end of the first valve core (31) extends into the flow channel (13);
The plugging plate (4) is arranged in the flow channel (13) and is rotationally connected with the first end of the first valve core (31), and the plugging plate (4) has two states of axial inclination or vertical inclination relative to the pipe body (1) under the action of the first valve core (31) and plugs the flow channel (13) in the inclined state;
The periphery of the pipe body (1) is provided with a second mounting hole (14) which is communicated with the flow channel (13) of the pipe body (1) and is opposite to the first mounting hole (15), and the pipe body (1) is provided with a small diameter part (5) at the downstream position corresponding to the plugging plate (4) along the water flow direction and an inclined pipe orifice (51) matched with the inclined state of the plugging plate (4);
The plugging plate (4) enters the second mounting hole (14) under the action of the movement of the first valve core (31) towards the second mounting hole (14) and is in a state of being vertical to the axial direction of the pipe (1);
The plugging plate (4) deflects away from the second mounting hole (14) under the action of the movement of the first valve core (31) in the direction away from the second mounting hole (14), is in an inclined state and plugs the inclined pipe orifice (51);
the end face of the plugging plate (4) facing the inclined pipe orifice (51) is provided with a third sealing piece (42) matched with the inclined pipe orifice (51).
2. The water inlet joint of claim 1, wherein: the first end of the first valve core (31) is a pair of connecting rods (33) which extend in parallel, two sides of the plugging plate (4) adjacent to the second end (4 a) are outwards extended with rotating shafts (331) perpendicular to the axis of the pipe body (1), the rotating shafts (331) are rotationally connected with the corresponding connecting rods (33), and the first end (4 b) of the plugging plate (4) is a free end.
3. The water inlet joint of claim 2, wherein: the second mounting hole (14) is in smooth transition connection between the side wall of the port close to the flow channel (13) and the side wall of the flow channel (13).
4. A water inlet joint according to any one of claims 1 to 3, wherein: a second valve core assembly is arranged in the second mounting hole (14), and the second valve core assembly comprises a second valve core (21) which can be slidably arranged in the second mounting hole (14) and is in sealing connection with at least partial inner side wall of the second mounting hole (14); in a state that the plugging plate (4) is inclined relative to the pipe body (1), the second valve core (21) moves towards the direction of the flow channel (13) and is in sealing connection with the second mounting hole (14), so that two ports of the second mounting hole (14) are in a communication state.
5. The water inlet joint of claim 4, wherein: the second end (4 a) of the plugging plate (4) is pressed against the second valve core (21), and a first spring (22) which enables the second valve core (21) to keep moving towards the direction of the flow channel (13) is arranged in the second mounting hole (14).
6. The water inlet joint of claim 5, wherein: the valve further comprises a second spring (43), one end of the second spring is fixed on the end face of the second valve core (21), and the other end of the second spring is a free end which is opposite to the plugging plate (4).
7. The water inlet joint of claim 4, wherein: the inside of the second mounting hole (14) is divided into a large-diameter area (14 a) close to the flow channel (13) and a small-diameter area (14 b) far away from the flow channel (13) along the axial direction of the second mounting hole, the middle part of the second valve core (21) is a piston body (210), and the piston body (210) is in sealing connection with the small-diameter area (14 b) and is provided with a water passing gap with the large-diameter area (14 a).
8. The water inlet joint of claim 7, wherein: still including installation cover (6) and drainage connector (7), thereby installation cover (6) one end detachably inserts in second mounting hole (14) with second mounting hole (14) internal portion divide into big footpath region (14 a) with little footpath region (14 b), installation cover (6) other end extends second mounting hole (14) and links to each other with drainage connector (7), and this drainage connector (7) are located body (1) outside, drain hole (71) have been seted up on drainage connector (7), piston body (210) with the inner wall sliding seal of installation cover (6) links to each other.
9. The water inlet joint of claim 8, wherein: a partition plate (61) is transversely arranged in the mounting sleeve (6), a water passing port (6 a) through which water flows is formed between the partition plate (61) and the inner wall of the mounting sleeve (6) and/or on the partition plate (61), the piston body (210) is connected with a second valve rod (211) which is inserted on the partition plate (61) in a sliding manner, and a first spring (22) is arranged between the piston body of the second valve core (21) and the partition plate (61).
10. The water inlet joint of claim 1, wherein: and a limit sleeve (8) is detachably inserted into the end part of the first mounting hole (15) far away from the flow channel (13).
11. The water inlet joint of claim 1, wherein: the first driving piece is a spring piece (32 a), a third spring (32 b) or a magnetic assembly, and the magnetic assembly comprises a second magnetic piece (321 c) and a first magnetic piece (322 c) which are oppositely arranged and have the same poles opposite to each other.
12. A water heater employing the water inlet fitting of any one of claims 1 to 11, characterized in that: the water heater also comprises a water heater body (9), and a water outlet (12) of the water inlet joint (A) is connected with a water inlet end of the water heater body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794943.9A CN110513563B (en) | 2019-08-27 | 2019-08-27 | Water inlet connector and water heater with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794943.9A CN110513563B (en) | 2019-08-27 | 2019-08-27 | Water inlet connector and water heater with same |
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| CN110513563A CN110513563A (en) | 2019-11-29 |
| CN110513563B true CN110513563B (en) | 2024-09-17 |
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| CN201910794943.9A Active CN110513563B (en) | 2019-08-27 | 2019-08-27 | Water inlet connector and water heater with same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113375345B (en) * | 2020-03-09 | 2023-04-07 | 芜湖美的厨卫电器制造有限公司 | Water return valve and water supply system |
| CN113494627B (en) * | 2020-03-20 | 2024-03-29 | 芜湖美的厨卫电器制造有限公司 | Water return valve and water supply system |
| CN111735204B (en) * | 2020-08-12 | 2021-01-22 | 宁波方太厨具有限公司 | Water inlet joint and gas water heater comprising same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2767788Y (en) * | 2005-01-05 | 2006-03-29 | 上海箭冠车业有限公司 | Connecting rod supporting point type pressure regulator for LPG |
| CN204592450U (en) * | 2015-04-21 | 2015-08-26 | 温州市汇丰热水器零部件有限公司 | A kind of electric water heater safety valve |
| CN211118240U (en) * | 2019-08-27 | 2020-07-28 | 宁波方太厨具有限公司 | Water inlet connector and water heater with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207261748U (en) * | 2017-09-21 | 2018-04-20 | 浙江盾运实业有限公司 | Interior pressure release type safety valve and water heater |
| CN110107717A (en) * | 2019-04-02 | 2019-08-09 | 商文辉 | A kind of noiseless check-valves of reversed pressure release type |
| CN109983897A (en) * | 2019-05-10 | 2019-07-09 | 贵州省烟草公司黔东南州公司 | A kind of granular fertilizer dosing device and application method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767788Y (en) * | 2005-01-05 | 2006-03-29 | 上海箭冠车业有限公司 | Connecting rod supporting point type pressure regulator for LPG |
| CN204592450U (en) * | 2015-04-21 | 2015-08-26 | 温州市汇丰热水器零部件有限公司 | A kind of electric water heater safety valve |
| CN211118240U (en) * | 2019-08-27 | 2020-07-28 | 宁波方太厨具有限公司 | Water inlet connector and water heater with same |
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| CN110513563A (en) | 2019-11-29 |
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