A water inlet and outlet valve structure

Abstract

The present application relates to the technical field of components for gas-fired hot water boilers, and in particular to a water inlet and outlet valve structure, including a water inlet valve group and a water supply valve. The water inlet valve group is provided with a bathroom water inlet flow channel and a heating circulation flow channel respectively; the water supply valve includes a valve body and a valve shaft, the valve body is arranged on the water inlet valve group, and the valve body is provided with a first chamber and a second chamber that are interconnected, the first chamber is connected to the bathroom water inlet flow channel, and the second chamber is connected to the heating circulation flow channel. One end of the valve shaft passes through the first chamber and is inserted into the second chamber and is provided with a first sealing ring, the outer diameter of the first sealing ring is smaller than the inner diameter of the first chamber, and when the valve shaft is inserted into the second chamber, the circumferential outer wall of the first sealing ring is pressed against the inner wall of the second chamber. The present application has the effect of reducing the possibility of reducing the sealing effect of the sealing ring.

Description

Technical Field

[0001] The present application relates to the technical field of components for gas heating hot water boilers, and in particular to a water inlet and outlet valve structure. Background Art

[0002] At present, a wall-mounted boiler is a heating device installed on a wall, also known as a wall heating boiler. It is mainly used to supply heating and hot water, and is usually installed on the walls of residential houses, public buildings or commercial places. Inlet and outlet valves are usually provided in the wall-mounted boiler, and the inlet and outlet valves are respectively connected to the heating circulation pipeline and the bathroom hot water pipeline, and the heating circulation pipeline and the bathroom hot water pipeline in the wall-mounted boiler are two independent pipelines. Among them, the heating circulation pipeline is used to provide heating for users, and the bathroom hot water pipeline is used to provide users with bathroom hot water. However, during use, the water in the heating circulation pipeline will continue to lose as it is heated, so it is necessary to add water to the heating circulation pipeline.

[0003] Reference Figure 1 In the related art, a water inlet chamber 11 and a heating water inlet chamber 12 are provided in the water inlet valve 1, the heating water inlet chamber 12 is connected to the heating circulation pipeline, and a heating water supply valve 2 is connected to the water inlet valve 1. The heating water supply valve 2 includes a water supply valve body 21 and a water supply valve shaft 22, and a water supply chamber 211 is provided in the water supply valve body 21, and the water supply chamber 211 is respectively connected to the water inlet chamber 11 and the heating water inlet chamber 12. The water supply valve shaft 22 extends into the water supply chamber 211, and a sealing ring 23 is provided at the end of the water supply valve shaft 22. When it is necessary to replenish water to the heating circulation pipeline, the water supply valve shaft 22 drives the sealing ring 23 to move, so that the sealing ring 23 is no longer squeezed on the inner wall of the port of the water supply chamber 211, so that the water supply chamber 211 is respectively connected to the water inlet chamber 11 and the heating water inlet chamber 12, thereby facilitating the replenishment of water to the heating circulation pipeline. When there is no need to replenish water for the heating circulation pipeline, the water replenishment valve shaft 22 squeezes the sealing ring 23 onto the inner wall of the port of the water replenishment chamber 211 to achieve the cutoff of the water inlet chamber 11 and the water replenishment chamber 211 .

[0004] Regarding the above-mentioned related technologies: the water supply valve shaft 22 is used to directly squeeze the sealing ring 23 to cut off the water inlet chamber 11 and the water supply chamber 211, which may cause the sealing ring 23 to age prematurely due to excessive squeezing, thereby easily leading to a reduction in the sealing effect of the sealing ring 23. Summary of the invention

[0005] In order to reduce the possibility of reduced sealing effect of the sealing ring, the present application provides an inlet and outlet water valve structure.

[0006] The present application provides a water inlet and outlet valve structure, which adopts the following technical solution:

[0007] A water inlet and outlet valve structure, comprising:

[0008] A water inlet valve group, wherein a bathroom water inlet flow channel and a heating circulation flow channel are respectively opened in the water inlet valve group;

[0009] A water supply valve comprises a valve body and a valve shaft, wherein the valve body is arranged on the water inlet valve group, and a first chamber and a second chamber which are interconnected are respectively opened in the valve body, the first chamber is connected to the bathroom water inlet flow channel, and the second chamber is connected to the heating circulation flow channel, one end of the valve shaft passes through the first chamber and is inserted into the second chamber and is provided with a first sealing ring, the outer diameter of the first sealing ring is smaller than the inner diameter of the first chamber, and when the valve shaft is inserted into the second chamber, the circumferential outer wall of the first sealing ring is pressed against the inner wall of the second chamber.

[0010] By adopting the above technical solution, when it is necessary to replenish water to the heating circulation flow channel, the valve shaft is first controlled to be separated from the second chamber, and the valve shaft drives the first sealing ring to be separated from the second chamber, so that the water in the bathroom water inlet flow channel can flow into the heating circulation flow channel through the first chamber and the second chamber to replenish water to the heating circulation flow channel. And when it is not necessary to replenish water to the heating circulation flow channel, the valve shaft is controlled to be inserted into the second chamber, and the valve shaft drives the first sealing ring to be inserted into the second chamber, so that the circumferential outer wall of the first sealing ring is pressed against the inner wall of the second chamber to seal the second chamber. At this time, the first sealing ring is not easily aged due to excessive extrusion, which is conducive to reducing the possibility of reduction in the sealing effect of the first sealing ring, and to a certain extent prolonging the service life of the first sealing ring.

[0011] Optionally, an adjustment component is provided on the valve body, and the adjustment component includes an adjustment sleeve, one end of the adjustment sleeve is sleeved on the valve body, and the other end of the adjustment sleeve is fixedly connected to the valve shaft, an adjustment block is provided in the adjustment sleeve, and a spiral groove is opened on the outer wall of the valve body around its own axial direction, and the adjustment block is inserted in the spiral groove and fits with the inner wall of the spiral groove.

[0012] By adopting the above technical solution, when the position of the valve shaft needs to be adjusted, the adjusting sleeve is rotated, and the adjusting sleeve drives the adjusting block to move in the spiral groove. The inner wall of the spiral groove guides the adjusting block, and the adjusting block drives the adjusting sleeve to move along the axial direction of the valve body, so that the adjusting sleeve drives the valve shaft to move, so that the valve shaft moves in the first chamber, and then it is convenient to use the valve shaft to drive the first sealing ring to insert or detach from the second chamber.

[0013] Optionally, the adjusting assembly includes an adjusting piece, which is arranged on the adjusting sleeve, and the valve shaft includes a first shaft portion, a second shaft portion and a first movable portion, one end of the first shaft portion is inserted in the first chamber, the other end of the first shaft portion is respectively connected to the adjusting sleeve and the adjusting piece, the second shaft portion is coaxially arranged with the first shaft portion and can be inserted in the second chamber, the first movable portion is arranged between the first shaft portion and the second shaft portion and connected to the adjusting piece, the first sealing ring is sleeved on the first movable portion, and the adjusting piece is used to control the movement of the first movable portion to adjust the diameter of the first sealing ring.

[0014] By adopting the above technical solution, when it is necessary to insert the valve shaft into the designated position in the second chamber, first use the adjusting member to control the movement of the first movable part so that the diameter of the first sealing ring is reduced. Then rotate the adjusting sleeve so that the adjusting sleeve drives the adjusting member, the first movable part and the second shaft part to move through the first shaft part, so as to insert the second shaft part and the second movable part into the designated position in the second chamber, thereby facilitating the insertion of the first sealing ring into the designated position in the second chamber. At this time, the first sealing ring is not easy to press against the inner wall of the second chamber. Next, use the adjusting member to control the reverse movement of the first movable part so that the diameter of the first sealing ring increases, so that the first sealing ring presses against the inner wall of the second chamber to complete the sealing of the second chamber. In this process, the first sealing ring is not easy to have excessive friction with the inner wall of the second chamber, which is conducive to reducing the possibility of wear of the first sealing ring;

[0015] When the first sealing ring is worn and it is difficult for the first sealing ring to seal the second chamber, the diameter of the first sealing ring is adjusted by the first movable part so that the diameter of the first sealing ring is increased again to squeeze the first sealing ring against the inner wall of the second chamber, thereby facilitating the sealing of the second chamber and further extending the service life of the first sealing ring.

[0016] Optionally, the first movable part includes a first movable block and a second movable block which are symmetrically arranged, the first movable block and the second movable block are both arranged between the first shaft portion and the second shaft portion, the first movable block and the second movable block are respectively connected to the adjusting member, the first sealing ring is sleeved on the first movable block and the second movable block, and the adjusting member is used to control the first movable block and the second movable block to approach or move away from each other.

[0017] By adopting the above technical solution, when the adjusting member controls the first movable block and the second movable block to move away from each other, the first movable block and the second movable block can stretch the first sealing ring, so that the diameter of the first sealing ring increases; and when the adjusting member controls the first movable block and the second movable block to move closer to each other, the first movable block and the second movable block no longer apply pressure to the first sealing ring, so that the diameter of the first sealing ring is reduced, thereby facilitating the adjustment of the diameter of the first sealing ring.

[0018] Optionally, the adjusting member includes a rotating rod and a cam arranged on the rotating rod, a through hole is coaxially opened on the first shaft portion and passes through the through hole, one end of the rotating rod passes through the through hole and is rotatably connected to the second shaft portion, and the other end of the rotating rod extends out of the valve body, and the cam is located between the first shaft portion and the second shaft portion and respectively contacts the first movable block and the second movable block.

[0019] By adopting the above technical solution, when the rotating rod rotates, the rotating rod drives the cam to rotate, so that the cam applies a force to the first movable block and the second movable block to drive the first movable block and the second movable block to move closer to or away from each other, thereby facilitating the use of the first movable block and the second movable block to adjust the diameter of the first sealing ring.

[0020] Optionally, a sliding groove is provided on the adjusting sleeve, an elastic member is arranged in the sliding groove, a slider is slidably inserted in the sliding groove, the slider is connected to one end of the elastic member close to the rotating rod, anti-slip grooves are arranged circumferentially on the rotating rod, and the elastic member is used to push the slider to press against the anti-slip grooves.

[0021] By adopting the above technical solution, when the rotating rod needs to be rotated, the slider is first pushed into the sliding groove, and the slider applies pressure to the elastic member to compress the elastic member. At this time, the slider is separated from the anti-skid pattern, so that it is easy to rotate the rotating rod; when the rotating rod needs to be fixed, the slider is no longer pressed, so that the elastic member can push the slider to move out of the sliding groove, so that the slider is pressed against the anti-skid pattern, and then it is easy to limit the rotating rod, so that the rotating rod is not easy to rotate again.

[0022] Optionally, protrusions are respectively provided on the first movable block and the second movable block, and limiting grooves are respectively provided on the side walls opposite to the first shaft portion and the second shaft portion, the limiting grooves are provided in a direction perpendicular to the axis of the first shaft portion, and the protrusions are slidably inserted in the limiting grooves.

[0023] By adopting the above technical solution, the protrusion is slidably inserted in the limiting groove, so that the protrusion can limit the first movable block and the second movable block, so as to reduce the possibility of relative rotation between the first movable block and the first shaft portion or the second shaft portion, and reduce the possibility of relative rotation between the second movable block and the first shaft portion or the second shaft portion, thereby facilitating the use of the first movable block and the second movable block to stably support the first sealing ring.

[0024] Optionally, a third shaft portion is coaxially arranged between the first shaft portion and the second shaft portion, the first movable portion is arranged between the second shaft portion and the third shaft portion, a second movable portion is arranged between the first shaft portion and the third shaft portion, the second movable portion has the same structure as the first movable portion, a second sealing ring is arranged on the second movable portion, the connection between the first chamber and the bathroom water inlet channel is located between the second sealing ring and the second chamber, the adjusting member is respectively connected to the first movable portion and the second movable portion, and the adjusting member is used to control the synchronous movement of the first movable portion and the second movable portion to adjust the diameter size of the first sealing ring and the second sealing ring.

[0025] By adopting the above technical solution, the adjusting member can control the synchronous movement of the first movable part and the second movable part, so as to utilize the first movable part to adjust the diameter of the first sealing ring, and utilize the second movable part to adjust the diameter of the second sealing ring, thereby, on the one hand, helping to reduce the possibility of wear of the first sealing ring and the second sealing ring when moving the valve shaft; on the other hand, it is convenient to utilize the second sealing ring to seal the first chamber after the valve shaft moves to the specified position, so as to reduce the possibility of water leakage in the first chamber.

[0026] Optionally, a third sealing ring is provided on the third shaft portion, the third sealing ring is filled between the third shaft portion and the inner wall of the first chamber, and the third sealing ring is located on a side of the second sealing ring close to the second chamber.

[0027] By adopting the above technical solution, the third sealing ring cooperates with the second sealing ring to further reduce the possibility of water leakage in the first chamber.

[0028] Optionally, an overflow hole is provided on the valve body, the overflow hole is connected to the first chamber, and the connection point between the overflow hole and the first chamber is located on a side of the second sealing ring away from the second chamber.

[0029] By adopting the above technical solution, when the third sealing ring is worn and the diameter of the second sealing ring is adjusted to reduce the diameter of the second sealing ring, the water in the first chamber can flow through the third sealing ring and the second sealing ring and flow out from the overflow hole, thereby conveniently reminding the user that the third sealing ring is damaged. At this time, the diameter of the second sealing ring is adjusted again so that the second sealing ring is pressed against the inner wall of the first chamber to seal the first chamber, which is conducive to reducing the possibility of continuous water leakage and waste of water resources during the process of waiting for maintenance.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The circumferential outer wall of the first sealing ring is pressed against the inner wall of the second chamber, so that the first sealing ring is not easily aged due to excessive extrusion, thereby reducing the possibility of reduction in the sealing effect of the first sealing ring, and further helping to extend the service life of the first sealing ring;

[0032] 2. Through the cooperation of the rotating rod, the cam, the first shaft portion, the second shaft portion, the first movable block, the second movable block and the first sealing ring, the diameter of the first sealing ring can be adjusted, thereby reducing the possibility of wear of the first sealing ring during movement, thereby helping to extend the service life of the first sealing ring;

[0033] 3. Through the mutual cooperation of the valve body, the rotating rod, the cam, the first shaft portion, the second shaft portion, the third shaft portion, the second movable portion, the second sealing ring and the third sealing ring, it is difficult for water to leak in the first chamber, and when the third sealing ring is worn, the second sealing ring can continue to seal the first chamber, which is helpful to reduce the possibility of continuous water leakage and waste of water resources during the waiting process for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of a water inlet valve and a heating water supply valve in the related technology.

[0035] Figure 2 It is a schematic diagram of the overall structure of an inlet and outlet water valve structure in Example 1 of the present application.

[0036] Figure 3 It is a front view of an inlet and outlet water valve structure in Example 1 of the present application.

[0037] Figure 4 is along Figure 3 Cross-sectional view of the water inlet valve group, water supply valve and plate heat exchanger of the AA line.

[0038] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0039] Figure 6 It is a partial structural schematic diagram of an inlet and outlet water valve structure in Example 1 of the present application.

[0040] Figure 7 It is a cross-sectional view of the water supply valve in Example 2 of the present application.

[0041] Figure 8 It is a schematic diagram of the explosion structure of the water supply valve without a valve body in Example 2 of the present application.

[0042] Fig. 9 It is a structural schematic diagram of the water supply valve and the regulating assembly without the valve body in Example 2 of the present application.

[0043] Fig.10 It is a cross-sectional view of the water supply valve in Example 3 of the present application.

[0044] Description of reference numerals:

[0045] 1. Water inlet valve; 11. Water inlet cavity; 12. Heating water inlet cavity; 2. Heating water supply valve; 21. Water supply valve body; 211. Water supply cavity; 22. Water supply valve shaft; 23. Sealing ring; 3. Water inlet valve group; 31. Bathroom water inlet flow channel; 32. Heating circulation flow channel; 33. Bathroom water inlet interface; 331. Filter; 34. Water pump interface; 4. Water supply valve; 41. Valve body; 411. First chamber; 412. Second chamber; 413. Spiral groove; 414. Overflow hole; 42. Valve shaft; 421. First shaft; 4211. Through hole; 422. Second shaft; 423. First movable part; 4231. Second movable part A movable block; 4232, a second movable block; 4233, a protrusion; 424, a limiting groove; 425, a third shaft portion; 426, a second movable portion; 43, a first sealing ring; 44, a second sealing ring; 45, a third sealing ring; 46, a limiting ring; 5, a water outlet valve group; 51, a bathroom water outlet; 52, a heating water outlet; 53, a three-way valve; 54, a pressure relief valve; 6, a plate heat exchanger; 7, an adjusting component; 71, an adjusting sleeve; 711, an adjusting block; 712, a slide groove; 713, an elastic member; 714, a slider; 72, an adjusting member; 721, a rotating rod; 7211, an anti-slip pattern; 722, a cam. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-10 This application is described in further detail.

[0047] The embodiment of the present application discloses a water inlet and outlet valve structure.

[0048] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] Embodiment 1:

[0050] Reference Figure 2 and Figure 3 The water inlet and outlet valve structure includes a water inlet valve group 3, a water supply valve 4 and a water outlet valve group 5. The water inlet valve group 3 and the water outlet valve group 5 are connected through a plate heat exchanger 6, and the water supply valve 4 is installed on the water inlet valve group 3. Figure 4 A bathroom water inlet channel 31 and a heating circulation channel 32 are respectively opened in the water inlet valve group 3, and the water replenishment valve 4 is connected to the bathroom water inlet channel 31 and the heating circulation channel 32 respectively, so that when the water replenishment valve 4 is opened, the water in the bathroom water inlet channel 31 can flow into the heating circulation channel 32 through the water replenishment valve 4 to replenish the heating circulation channel 32 with water.

[0051] Reference Figure 2 and Figure 4 , the water inlet valve group 3 is provided with a bathroom water inlet interface 33 and a water pump interface 34. The bathroom water inlet interface 33 is communicated with the bathroom water inlet flow channel 31, and the bathroom water inlet interface 33 is used to connect with an external tap water pipe to facilitate water delivery to the bathroom water inlet flow channel 31. In this embodiment, a filter screen 331 is provided on the bathroom water inlet interface 33 to filter impurities in the water, thereby reducing the possibility of impurities blocking the bathroom water inlet interface 33.

[0052] The heating circulation channel 32 is used for supplying heating water to circulate between the plate heat exchanger 6 and the combustion chamber of the wall-mounted boiler. The water pump interface 34 is connected to the heating circulation channel 32, and the water pump interface 34 is used to connect the water pump, so as to facilitate the heating water to flow in the heating circulation channel 32, and facilitate the water in the bathroom water inlet channel 31 to flow into the heating circulation channel 32 after the water supply valve 4 is opened, so as to replenish the heating circulation channel 32 with water.

[0053] The water outlet valve group 5 includes a bathroom water outlet 51, a heating water outlet 52 and a three-way valve 53. The bathroom water outlet 51 is connected to the bathroom water inlet channel 31 through the plate heat exchanger 6, the three-way valve 53 is connected to the heating circulation channel 32 through the plate heat exchanger 6, and the heating water outlet 52 is connected to the three-way valve 53.

[0054] When hot water is needed, the bathroom water inlet interface 33 is opened to deliver water to the bathroom water inlet channel 31, so that the bathroom water flows through the bathroom water inlet channel 31 and the plate heat exchanger 6, and flows out from the bathroom water outlet 51. At this time, the three-way valve 53 is started, so that the heating water outlet 52 is in a closed state, so that the heating water flows into the heating circulation channel 32 through the plate heat exchanger 6, so that the heating water and the bathroom water exchange heat in the plate heat exchanger 6, and then the bathroom water flowing out from the bathroom water outlet 51 is easily converted into hot water.

[0055] A pressure relief valve 54 is provided on the heating water outlet 52. When the pressure in the heating water outlet 52 is too high, the pressure relief valve 54 can automatically release the pressure.

[0056] It should be noted that in the embodiment of the present application, how to control the operation of the three-way valve 53 and the pressure relief valve 54, how to heat the heating water, and the working principle of the plate heat exchanger 6 are conventional technical means for those skilled in the art, and therefore will not be elaborated in detail in the embodiment of the present application.

[0057] Reference Figure 4 and Figure 5 The water supply valve 4 includes a valve body 41 and a valve shaft 42. The valve body 41 is installed on the water inlet valve group 3, and the valve body 41 is provided with a first chamber 411 and a second chamber 412 which are interconnected, and the diameter of the second chamber 412 is smaller than the diameter of the first chamber 411.

[0058] The first chamber 411 is connected to the bathroom water inlet channel 31, and the second chamber 412 is connected to the heating circulation channel 32, so that the water in the bathroom water inlet channel 31 can flow into the heating circulation channel 32 through the first chamber 411 and the second chamber 412 to replenish the heating circulation channel 32.

[0059] Reference Figure 5 The valve shaft 42 is slidably inserted into the first chamber 411 , and the diameter of the end of the valve shaft 42 close to the second chamber 412 is adapted to the design of the second chamber 412 , so that the valve shaft 42 can be inserted into the second chamber 412 .

[0060] A first sealing ring 43 is disposed at one end of the valve shaft 42 close to the second chamber 412. When the valve shaft 42 is inserted into the second chamber 412, the circumferential outer wall of the first sealing ring 43 is pressed against the inner wall of the second chamber 412 to seal the second chamber 412.

[0061] It should be noted that, in the embodiment of the present application, the first sealing ring 43 does not seal the second chamber 412 by direct extrusion, but fills the first sealing ring 43 between the valve shaft 42 and the inner wall of the second chamber 412 to seal the second chamber 412. Therefore, the first sealing ring 43 is not easily over-extruded, which helps to reduce the possibility of aging of the first sealing ring 43 due to excessive extrusion, and prolongs the service life of the first sealing ring 43 to a certain extent.

[0062] Reference Figure 4 and Figure 5 In this embodiment, the outer diameter of the first sealing ring 43 is smaller than the inner diameter of the first chamber 411, so that when the valve shaft 42 drives the first sealing ring 43 to leave the second chamber 412 and enter the first chamber 411, the first sealing ring 43 does not seal the first chamber 411, so that the water in the bathroom water inlet channel 31 can flow into the heating circulation channel 32.

[0063] Reference Figure 5 A second sealing ring 44 and a third sealing ring 45 are respectively provided on the valve shaft 42. The second sealing ring 44 and the third sealing ring 45 are both located in the first chamber 411, and the circumferential outer walls of the second sealing ring 44 and the third sealing ring 45 are both pressed against the inner wall of the first chamber 411 to seal the first chamber 411.

[0064] The third sealing ring 45 is located on the side of the second sealing ring 44 close to the second chamber 412 , and the connection between the first chamber 411 and the bathroom water inlet channel 31 is located between the third sealing ring 45 and the second chamber 412 , thereby helping to reduce the possibility of water leakage in the first chamber 411 .

[0065] In this embodiment, three limiting rings 46 are integrally formed on the valve shaft 42, and the three limiting rings 46 are alternately arranged with the second sealing ring 44 and the third sealing ring 45, so that the limiting rings 46 can limit the second sealing ring 44 and the third sealing ring 45 to prevent the second sealing ring 44 and the third sealing ring 45 from moving on the valve shaft 42, so that the second sealing ring 44 and the third sealing ring 45 can stably seal the first chamber 411.

[0066] Reference Figure 5 and Figure 6 , the valve body 41 is provided with an adjustment assembly 7, and the adjustment assembly 7 includes an adjustment sleeve 71. One end of the adjustment sleeve 71 is sleeved on the valve body 41, and the other end of the adjustment sleeve 71 is fixedly connected to the valve shaft 42, and an adjustment block 711 is fixedly connected inside the adjustment sleeve 71. In this embodiment, two adjustment blocks 711 are provided, and the two adjustment blocks 711 are symmetrically arranged.

[0067] Two spiral grooves 413 are formed on the outer wall of the valve body 41 around the axis of the valve body 41 , and one adjusting block 711 is inserted in one spiral groove 413 , while the other adjusting block 711 is inserted in the other spiral groove 413 .

[0068] When it is necessary to adjust the position of the valve shaft 42, rotate the adjusting sleeve 71, and the adjusting sleeve 71 drives the adjusting block 711 to move in the spiral groove 413. The inner wall of the spiral groove 413 guides the adjusting block 711, and the adjusting block 711 drives the adjusting sleeve 71 to move along the axial direction of the valve body 41, so that the adjusting sleeve 71 drives the valve shaft 42 to move, so that the valve shaft 42 moves in the first chamber 411, and then it is convenient to use the valve shaft 42 to drive the first sealing ring 43 to insert or disengage from the second chamber 412.

[0069] Reference Figure 6 In this embodiment, the two spiral grooves 413 are not connected to each other, so that an adjusting block 711 can only move in one spiral groove 413, and the adjusting block 711 fits against the inner wall of the spiral groove 413, so that the adjusting block 711 is not easy to separate from the spiral groove 413, and it is convenient to stably restrict the adjusting sleeve 71 on the valve body 41 through the two adjusting blocks 711.

[0070] It should be noted that compared with the manner in which the adjusting sleeve 71 is threadedly connected to the valve body 41, in the embodiment of the present application, the pitch of the spiral groove 413 can be set larger, so that when the adjusting sleeve 71 rotates the same number of circles, the adjusting block 711 can drive the adjusting sleeve 71 to move a larger distance, thereby facilitating the adjustment of the position of the valve shaft 42.

[0071] The implementation principle of an inlet and outlet water valve structure in Example 1 of the present application is: when it is necessary to replenish water for the heating circulation channel 32, first rotate the adjusting sleeve 71 so that the adjusting sleeve 71 drives the adjusting block 711 to move in the spiral groove 413, and the inner wall of the spiral groove 413 guides the adjusting block 711 so that the adjusting block 711 drives the adjusting sleeve 71 to move away from the valve body 41, and the adjusting sleeve 71 drives the valve shaft 42 to move, so that the valve shaft 42 drives the first sealing ring 43 to disengage from the second chamber 412, thereby facilitating the water in the bathroom water inlet channel 31 to flow into the heating circulation channel 32 to replenish water for the heating circulation channel 32.

[0072] When the water replenishment is completed, the adjusting sleeve 71 is rotated in the opposite direction so that the adjusting sleeve 71 drives the valve shaft 42 to be inserted into the second chamber 412, and the valve shaft 42 drives the first sealing ring 43 to be inserted into the second chamber 412 to seal the second chamber 412, so that the water in the bathroom water inlet channel 31 no longer flows into the heating circulation channel 32.

[0073] Embodiment 2:

[0074] Reference Figure 7The difference between the second embodiment and the first embodiment is that the valve shaft 42 includes a first shaft portion 421 , a second shaft portion 422 and a first movable portion 423 .

[0075] One end of the first shaft portion 421 is inserted into the first chamber 411, and the other end of the first shaft portion 421 is fixedly connected to the adjustment sleeve 71. The limiting ring 46 is integrally formed on the first shaft portion 421, and the second sealing ring 44 and the third sealing ring 45 are sleeved on the first shaft portion 421.

[0076] Reference Figure 7 and Figure 8 The second shaft portion 422 is coaxially arranged with the first shaft portion 421 , and limiting grooves 424 are respectively provided on the side walls opposite to the first shaft portion 421 and the second shaft portion 422 , and the limiting grooves 424 are provided along an axial direction perpendicular to the first shaft portion 421 .

[0077] Reference Figure 8 The first movable portion 423 includes a first movable block 4231 and a second movable block 4232 symmetrically arranged. The first movable block 4231 and the second movable block 4232 are respectively provided with protrusions 4233 , and the protrusions 4233 are adapted to the design of the limiting groove 424 .

[0078] The first movable block 4231 and the second movable block 4232 are both disposed between the first shaft portion 421 and the second shaft portion 422 , and the protrusion 4233 is slidably inserted in the limiting groove 424 , so that the first movable block 4231 and the second movable block 4232 can move along an axial direction perpendicular to the first shaft portion 421 .

[0079] The protrusion 4233 can limit the first movable block 4231 and the second movable block 4232 to reduce the possibility of relative rotation between the first movable block 4231 and the first shaft portion 421 or the second shaft portion 422, and reduce the possibility of relative rotation between the second movable block 4232 and the first shaft portion 421 or the second shaft portion 422.

[0080] The first sealing ring 43 is sleeved on the first movable block 4231 and the second movable block 4232. In this embodiment, the cross-section of the first movable block 4231 and the second movable block 4232 along the axis direction perpendicular to the first shaft portion 421 is semicircular, so that the first sealing ring 43 can fit the first movable block 4231 and the second movable block 4232.

[0081] Reference Figure 7 and Figure 8The first shaft portion 421 is coaxially and penetrated by a through hole 4211, and the adjustment assembly 7 includes an adjustment member 72, and the adjustment member 72 includes a rotating rod 721 and a cam 722 fixedly connected to the rotating rod 721. One end of the rotating rod 721 passes through the through hole 4211 and is rotatably connected to the second shaft portion 422, and the other end of the rotating rod 721 extends to the outside of the valve body 41, and the cam 722 is located between the first shaft portion 421 and the second shaft portion 422 and respectively contacts the first movable block 4231 and the second movable block 4232.

[0082] Reference Figure 7 and Figure 8 When it is necessary to seal the second chamber 412, the first sealing ring 43 is first moved into the second chamber 412, and then the rotating rod 721 is rotated. The rotating rod 721 drives the cam 722 to rotate, so that the cam 722 applies a force to the first movable block 4231 and the second movable block 4232 to drive the first movable block 4231 and the second movable block 4232 away from each other. The first movable block 4231 and the second movable block 4232 open the first sealing ring 43, thereby increasing the diameter of the first sealing ring 43, and then the first sealing ring 43 is pressed against the inner wall of the second chamber 412 to seal the second chamber 412.

[0083] When it is necessary to provide heating circulation channel 32 (refer to Figure 3 ) When replenishing water, first rotate the rotating rod 721 in the opposite direction, and the rotating rod 721 drives the cam 722 to rotate in the opposite direction, so that the force exerted by the cam 722 on the first movable block 4231 and the second movable block 4232 is reduced. And the first sealing ring 43 is elastic, so that the first movable block 4231 and the second movable block 4232 are close to each other under the action of the first sealing ring 43, so that the diameter of the first sealing ring 43 is reduced, and the first sealing ring 43 no longer presses against the inner wall of the second chamber 412. Then move the first shaft portion 421 in the direction away from the valve body 41, and the first shaft portion 421 drives the first movable block 4231, the second movable block 4232, the first sealing ring 43 and the second shaft portion 422 to move, so that the first sealing ring 43 is separated from the second chamber 412, thereby facilitating the heating circulation flow channel 32 (refer to Figure 3 ) Rehydrate.

[0084] In the embodiment of the present application, the diameter of the first sealing ring 43 can be adjusted through the cooperation of the rotating rod 721, the cam 722, the first movable block 4231 and the second movable block 4232, so as to reduce the possibility of wear during the movement of the first sealing ring 43. When the first sealing ring 43 is worn, the diameter of the first sealing ring 43 can be adjusted to increase, and the first sealing ring 43 can be squeezed on the inner wall of the second chamber 412 to seal the second chamber 412, thereby reducing the possibility that the first sealing ring 43 can no longer seal the second chamber 412 after being worn, and prolonging the service life of the first sealing ring 43 to a certain extent.

[0085] Reference Figure 7 A slide groove 712 is provided on the adjusting sleeve 71 in a direction perpendicular to its own axis, an elastic member 713 is provided in the slide groove 712, and a slider 714 is slidably inserted in the slide groove 712, the slider 714 is adapted to the shape design of the slide groove 712, and one end of the elastic member 713 close to the rotating rod 721 is fixedly connected to the slider 714. In this embodiment, the elastic member 713 is a spring, so that the elastic member 713 can push the slider 714 to move out of the slide groove 712.

[0086] Reference Figure 7 and Fig. 9 The rotating rod 721 is provided with anti-skid grooves 7211 along the circumference thereof, and the elastic member 713 can push the slider 714 to press against the anti-skid grooves 7211 , so that the slider 714 limits the rotating rod 721 , so that the rotating rod 721 is not easy to rotate again.

[0087] Reference Figure 8 When the rotating rod 721 is difficult to rotate, the cam 722 is also difficult to rotate, so that the cam 722 is convenient to support the first movable block 4231 and the second movable block 4232.

[0088] Reference Figure 7 and Fig. 9 When the rotating rod 721 needs to be rotated, the slider 714 is first pushed to move into the slide groove 712, and the slider 714 applies pressure to the elastic member 713 to compress the elastic member 713. At this time, the slider 714 is separated from the anti-slip pattern 7211, so that the rotating rod 721 is easy to rotate.

[0089] The implementation principle of Example 2 is: when it is necessary to replenish water for the heating circulation channel 32, first push the slider 714 to move into the slide groove 712, and then rotate the rotating rod 721. The rotating rod 721 drives the cam 722 to rotate, so that the first movable block 4231 and the second movable block 4232 are close to each other, so that the diameter of the first sealing ring 43 is reduced, and the first sealing ring 43 no longer presses against the inner wall of the second chamber 412.

[0090] Next, rotate the adjusting sleeve 71 so that the adjusting sleeve 71 drives the first shaft portion 421 to move away from the second chamber 412, and the first shaft portion 421 drives the first movable block 4231, the second movable block 4232, the first sealing ring 43 and the second shaft portion 422 to move, thereby making the first sealing ring 43 disengage from the second chamber 412, thereby facilitating the water in the bathroom water inlet channel 31 to flow into the heating circulation channel 32 to replenish the heating circulation channel 32 with water.

[0091] Finally, the adjusting sleeve 71 is rotated in the reverse direction so that the first sealing ring 43 enters the second chamber 412 again. The rotating rod 721 is rotated in the reverse direction so that the first movable block 4231 and the second movable block 4232 open the first sealing ring 43 so that the first sealing ring 43 is pressed against the inner wall of the second chamber 412, thereby completing the sealing of the second chamber 412.

[0092] Embodiment 3:

[0093] Reference Fig.10 The difference between the third embodiment and the second embodiment is that the valve shaft 42 includes a third shaft portion 425 and a second movable portion 426 .

[0094] The third shaft portion 425 is coaxially disposed with the first shaft portion 421, and the third shaft portion 425 is located between the first shaft portion 421 and the second shaft portion 422. In this embodiment, the through hole 4211 is coaxially disposed and passes through the third shaft portion 425, so that the rotating rod 721 can pass through the first shaft portion 421 and the third shaft portion 425 in sequence and be rotatably connected with the second shaft portion 422.

[0095] The first movable portion 423 is disposed between the second shaft portion 422 and the third shaft portion 425, and the second movable portion 426 is disposed between the first shaft portion 421 and the third shaft portion 425. In this embodiment, the second movable portion 426 has the same structure as the first movable portion 423, and the second sealing ring 44 is sleeved on the second movable portion 426, so that when the rotating rod 721 rotates, the diameter of the second sealing ring 44 can be adjusted through the second movable portion 426, thereby facilitating the possibility of wear of the second sealing ring 44.

[0096] Reference Fig.10 The third sealing ring 45 is sleeved on the third shaft portion 425 , which helps to reduce the possibility of water leakage in the first chamber 411 when the diameter of the second sealing ring 44 is reduced, and further improves the sealing performance of the first chamber 411 .

[0097] An overflow hole 414 is formed on the valve body 41 . The overflow hole 414 is connected to the first chamber 411 . The connecting point between the overflow hole 414 and the first chamber 411 is located on a side of the second sealing ring 44 away from the third sealing ring 45 .

[0098] When the third sealing ring 45 is worn and cannot seal the first chamber 411, the rotating rod 721 is rotated, and the rotating rod 721 adjusts the diameter of the second sealing ring 44 through the second movable part 426, so that the diameter of the second sealing ring 44 is reduced. At this time, the water in the first chamber 411 can flow through the third sealing ring 45 and the second sealing ring 44 and flow out from the overflow hole 414, so as to remind the user that the third sealing ring 45 is damaged, and further help the user to replace the third sealing ring 45 in time.

[0099] When the user finds that the third sealing ring 45 is damaged, the user turns the rotating rod 721 again to adjust the diameter of the second sealing ring 44 so that the second sealing ring 44 presses against the inner wall of the first chamber 411 to seal the first chamber 411, thereby helping to reduce the possibility of continuous water leakage and waste of water resources while waiting for maintenance.

[0100] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water inlet and outlet valve structure, characterized in that: include: A water inlet valve group (3), wherein a bathroom water inlet flow channel (31) and a heating circulation flow channel (32) are respectively provided in the water inlet valve group (3); A water supply valve (4), comprising a valve body (41) and a valve shaft (42), wherein the valve body (41) is arranged on the water inlet valve group (3), and the valve body (41) is provided with a first chamber (411) and a second chamber (412) which are connected to each other, wherein the first chamber (411) is connected to the bathroom water inlet flow channel (31), and the second chamber (412) is connected to the heating circulation flow channel (32), and one end of the valve shaft (42) passes through the first chamber (411) and is inserted into the second chamber (412) and is provided with a first sealing ring (43), wherein the outer diameter of the first sealing ring (43) is smaller than the inner diameter of the first chamber (411), and when the valve shaft (42) is inserted into the second chamber (412), the circumferential outer wall of the first sealing ring (43) is pressed against the inner wall of the second chamber (412); The valve body (41) is provided with an adjusting component (7), the adjusting component (7) comprising an adjusting sleeve (71), one end of the adjusting sleeve (71) being sleeved on the valve body (41), the other end of the adjusting sleeve (71) being fixedly connected to the valve shaft (42), an adjusting block (711) being arranged inside the adjusting sleeve (71), a spiral groove (413) being provided on the outer wall of the valve body (41) around its own axis, the adjusting block (711) being inserted into the spiral groove (413) and being in contact with the inner wall of the spiral groove (413); The adjusting assembly (7) comprises an adjusting member (72), wherein the adjusting member (72) is arranged on the adjusting sleeve (71); the valve shaft (42) comprises a first shaft portion (421), a second shaft portion (422) and a first movable portion (423); one end of the first shaft portion (421) is inserted into the first chamber (411); the other end of the first shaft portion (421) is connected to the adjusting sleeve (71) and the adjusting member (72) respectively; the second shaft portion (422) is coaxially arranged with the first shaft portion (421) and can be inserted into the second chamber (412); the first movable portion (423) is arranged between the first shaft portion (421) and the second shaft portion (422) and is connected to the adjusting member (72); the first sealing ring (43) is sleeved on the first movable portion (423); and the adjusting member (72) is used to control the movement of the first movable portion (423) so as to adjust the diameter of the first sealing ring (43).

2. The water inlet and outlet valve structure according to claim 1, characterized in that: The first movable portion (423) comprises a first movable block (4231) and a second movable block (4232) which are symmetrically arranged. The first movable block (4231) and the second movable block (4232) are both arranged between the first shaft portion (421) and the second shaft portion (422). The first movable block (4231) and the second movable block (4232) are respectively connected to the adjusting member (72). The first sealing ring (43) is sleeved on the first movable block (4231) and the second movable block (4232). The adjusting member (72) is used to control the first movable block (4231) and the second movable block (4232) to move closer to or farther from each other.

3. The water inlet and outlet valve structure according to claim 2, characterized in that: The adjusting member (72) comprises a rotating rod (721) and a cam (722) arranged on the rotating rod (721); a through hole (4211) is coaxially provided on the first shaft portion (421) and penetrates therethrough; one end of the rotating rod (721) passes through the through hole (4211) and is rotatably connected to the second shaft portion (422); the other end of the rotating rod (721) extends to the outside of the valve body (41); the cam (722) is located between the first shaft portion (421) and the second shaft portion (422) and respectively contacts the first movable block (4231) and the second movable block (4232).

4. The water inlet and outlet valve structure according to claim 3, characterized in that: The adjusting sleeve (71) is provided with a sliding groove (712), an elastic member (713) is arranged in the sliding groove (712), a slider (714) is slidably inserted in the sliding groove (712), the slider (714) is connected to an end of the elastic member (713) close to the rotating rod (721), an anti-slip groove (7211) is arranged on the rotating rod (721) along the circumferential direction, and the elastic member (713) is used to push the slider (714) to press against the anti-slip groove (7211).

5. The water inlet and outlet valve structure according to claim 2, characterized in that: The first movable block (4231) and the second movable block (4232) are respectively provided with protrusions (4233); and the side walls opposite to the first shaft portion (421) and the second shaft portion (422) are respectively provided with limiting grooves (424); the limiting grooves (424) are provided in a direction perpendicular to the axis of the first shaft portion (421); and the protrusions (4233) are slidably inserted in the limiting grooves (424).

6. The water inlet and outlet valve structure according to claim 1, characterized in that: A third shaft portion (425) is coaxially arranged between the first shaft portion (421) and the second shaft portion (422); the first movable portion (423) is arranged between the second shaft portion (422) and the third shaft portion (425); a second movable portion (426) is arranged between the first shaft portion (421) and the third shaft portion (425); the second movable portion (426) has the same structure as the first movable portion (423); a second sealing ring (426) is arranged on the second movable portion (426). 4), the connection point between the first chamber (411) and the bathroom water inlet channel (31) is located between the second sealing ring (44) and the second chamber (412), the adjusting member (72) is connected to the first movable part (423) and the second movable part (426) respectively, and the adjusting member (72) is used to control the synchronous movement of the first movable part (423) and the second movable part (426) to adjust the diameter of the first sealing ring (43) and the second sealing ring (44).

7. The water inlet and outlet valve structure according to claim 6, characterized in that: A third sealing ring (45) is provided on the third shaft portion (425), and the third sealing ring (45) is filled between the third shaft portion (425) and the inner wall of the first chamber (411). The third sealing ring (45) is located on a side of the second sealing ring (44) close to the second chamber (412).

8. The water inlet and outlet valve structure according to claim 6, characterized in that: The valve body (41) is provided with an overflow hole (414), the overflow hole (414) being in communication with the first chamber (411), and the connection point between the overflow hole (414) and the first chamber (411) is located on a side of the second sealing ring (44) away from the second chamber (412).

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