Temperature adjusting valve

Abstract

The temperature adjusting valve comprises a valve shell, the valve shell comprises a water outlet and a control area located on the side wall, and a hot water inlet and a cold water inlet are formed in the control area in the axial direction; the valve element comprises an adjusting part located in the control area, the adjusting part comprises a cold water end, a hot water end and a water through hole, the cold water end and the hot water end are oppositely arranged in the axial direction, the water through hole communicates with the cold water end and the hot water end, and the water through hole communicates with the water outlet; and at least part of the driving piece is located in the valve shell and is in driving connection with the valve element, so that the adjusting part is driven to slide in the control area in a sealed mode in the axial direction, and the opening area of the hot water inlet and the opening area of the cold water inlet are adjusted. According to the temperature adjusting valve provided by the invention, the size of the temperature adjusting valve is consistent with that of the thermostatic valve, and the mold cost and the time cost for redeveloping a non-thermostatic faucet platform are saved.

Description

Technical Field

[0001] This application relates to the field of fluid control technology, and in particular to a temperature control valve. Background Technology

[0002] Thermostatic valves and non-thermostatic valves differ significantly in construction, and the components used with these two types of valves cannot be shared. Therefore, components requiring valve control, such as shower faucets, need to be developed using two different platforms and molds for thermostatic and non-thermostatic valves. Furthermore, with the development of temperature control systems in gas and electric water heaters, many water heaters are now equipped with thermostatic functions.

[0003] Currently, users are increasingly demanding that showerheads and push-button switches have thermostatic functions, but faucets do not require thermostatic control. Based on this, we can develop a low-cost non-thermostatic valve with the same size as the thermostatic valve core to achieve two functions on one platform, which can save the mold cost and time cost of developing a non-thermostatic faucet platform. Summary of the Invention

[0004] This application provides a temperature regulating valve to solve the problems existing in the prior art, so that the temperature regulating valve and the thermostatic valve have the same size, saving the mold cost and time cost of redeveloping non-thermostatic faucet platforms.

[0005] The temperature regulating valve provided in this application includes: a valve housing, the valve housing including a water outlet and a control area located on the side wall, the control area having a hot water inlet and a cold water inlet arranged axially; a valve core, the valve core including an adjusting part located within the control area, the adjusting part including a cold water end and a hot water end arranged axially opposite to each other, and a water passage connecting the cold water end and the hot water end, the water passage being connected to the water outlet; and a driving member, the driving member being at least partially located within the valve housing and drivenly connected to the valve core, so as to drive the adjusting part to slide axially within the control area in a sealed manner, thereby adjusting the opening area of ​​the hot water inlet and the cold water inlet.

[0006] Optionally, the valve core further includes a connecting portion fixed to the adjusting portion, the connecting portion having a threaded hole, the driving member including a threaded rod threadedly connected in the threaded hole and a driving rod at least partially located outside the valve housing, and a snap-fit ​​assembly preventing the valve core from rotating relative to the valve housing is provided between the valve core and the valve housing.

[0007] Optionally, the snap-fit ​​assembly includes a first snap-fit ​​portion and a second snap-fit ​​portion that are slidably snap-fitted together along the axial direction, the first snap-fit ​​portion being located on the connecting portion and the second snap-fit ​​portion being located on the inner wall of the valve housing.

[0008] Optionally, of the first latching part and the second latching part, one is a latching strip and the other is a latching slot adapted to the latching strip.

[0009] Optionally, an annular opening is provided on the end face of the adjusting part near the connecting part, and the part of the connecting part connected to the adjusting part is located inside the annular opening.

[0010] Optionally, the threaded rod and the drive rod are connected by a connecting rod, and the connecting rod is sealed to the inner wall of the valve body.

[0011] Optionally, the connecting rod and the driving rod are provided with a recessed snap-fit ​​groove at the connection point, and the temperature control valve also includes a retaining ring, which is snapped into the snap-fit ​​groove and at least partially abuts against the end of the valve housing; the connecting rod is provided with a positioning block at the part located inside the valve housing, and the side of the positioning block near the driving rod abuts against the inner wall of the valve housing.

[0012] Optionally, at least one of the hot water inlet and the cold water inlet is provided with a filter screen on its outer side.

[0013] Optionally, the valve housing includes a detachably connected body and a base, with the outlet located on the base.

[0014] Optionally, the outer end face of the drive rod is provided with a mounting hole.

[0015] The above technical solution has the following beneficial effects:

[0016] The thermostatic valve provided in this application uses a driving component to move the adjusting part located inside the valve housing axially in a sealed manner, changing the opening area of ​​the hot water inlet and the cold water inlet to adjust the ratio of hot and cold water entering the valve, thereby achieving the function of regulating the water temperature at the outlet. Furthermore, the size and shape of the valve housing do not need to be changed, allowing the thermostatic valve and the thermostatic valve to maintain the same external dimensions, saving the mold costs and time costs of developing a non-thermostatic faucet platform. In addition, by changing the area of ​​the hot water inlet and the cold water inlet to change the hot and cold water flow rates, the outlet water flow rate can be increased or decreased as needed without altering the valve housing shape. Attached Figure Description

[0017] The preferred embodiments of this application will now be described in detail with reference to the accompanying drawings to aid in understanding the purpose and advantages of this application, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of a temperature control valve provided in an optional embodiment of this application.

[0019] Figure 2 This is a top view of a temperature control valve provided in an optional embodiment of this application.

[0020] Figure 3 An exploded view of a temperature control valve provided in an optional embodiment of this application.

[0021] Figure 4 This is an axial sectional view of a temperature control valve provided in an optional embodiment of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Valve housing, 10-Outlet, 11-Control area, 110-Hot water inlet, 111-Cold water inlet, 12-Second snap-fit ​​part, 13-Main body, 14-Base;

[0024] 2-Valve core, 20-Adjusting part, 200-Water passage hole, 201-Annular opening, 202-Groove, 203-First sealing ring, 204-Cold water inlet, 205-Hot water inlet, 21-Connecting part, 210-First snap-fit ​​part;

[0025] 3-Drive component, 30-Threaded rod, 31-Drive rod, 310-Mounting hole, 32-Connecting rod, 320-Snap-fit ​​groove, 321-Positioning block, 322-Annular groove, 323-Second sealing ring;

[0026] 4-Clasp;

[0027] 5-Filter. Detailed Implementation

[0028] The technical solution of the present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0029] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0030] This application provides a temperature control valve, including a valve housing 1, a valve core 2, and a drive component 3.

[0031] Please refer to Figures 1 to 4The valve housing 1 includes an outlet 10 and a control area 11 located on the side wall of the valve housing 1. The control area 11 has a hot water inlet 110 and a cold water inlet 111 arranged axially. The valve core 2 includes an adjustment part 20 located in the control area 11. The adjustment part 20 includes a cold water end 204 and a hot water end 205 arranged axially opposite to each other, and a water passage 200 connecting the cold water end 204 and the hot water end 205. The water passage 200 is connected to the outlet 10. The driving member 3 is at least partially located in the valve housing 1 and drivenly connected to the valve core 2 to drive the adjustment part 20 to slide axially within the control area 11 in a sealed manner to adjust the opening area of ​​the hot water inlet 110 and the cold water inlet 111.

[0032] Please refer to Figure 4 The outer side of the adjustment part 20 is provided with a groove 202, and a first sealing ring 203 is embedded in the groove 202. The first sealing ring 203 seals between the adjustment part 20 and the control area 11.

[0033] like Figure 3 and Figure 4 As shown, the cold water end 204 of the regulating section 20 corresponds to the cold water inlet 111, and the hot water end 205 corresponds to the hot water inlet 110. Both the cold water inlet 111 and the hot water inlet 110 extend circumferentially along the valve housing 1, so that both cold and hot water can enter the valve housing 1 around its perimeter. The outer surface of the regulating section 20 is sealed to the control area 11, blocking the portions of the hot water inlet 110 and the cold water inlet 111 that are opposite to the regulating section 20. Hot water can only enter the valve housing 1 from the area of ​​the hot water inlet 110 that is not blocked by the regulating section 20, and cold water can only enter the valve housing 1 from the area of ​​the cold water inlet 111 that is not blocked by the regulating section 20.

[0034] When the driving member 3 drives the adjusting unit 20 to slide axially in the control area 11, it changes the blocking area of ​​the cold water inlet 111 and the hot water inlet 110. When the adjusting unit 20 moves axially toward the cold water inlet 111, the blocking area of ​​the cold water inlet 111 increases, and the amount of cold water entering decreases; at the same time, the blocking area of ​​the adjusting unit 20 toward the hot water inlet 110 decreases, and the amount of hot water entering increases, so as to raise the temperature of the mixed water. When the adjusting unit 20 moves axially toward the hot water inlet 110, the blocking area of ​​the hot water inlet 110 increases, and the amount of hot water entering decreases; at the same time, the blocking area of ​​the adjusting unit 20 toward the cold water inlet 111 decreases, and the amount of cold water entering increases, so as to lower the temperature of the mixed water.

[0035] In one of the optional configurations of the outlet 10, the outlet 10 can be located at the bottom of the valve housing 1, such as... Figure 4 As shown, hot water entering from the hot water inlet 110 on the side of the valve housing 1 and cold water entering from the cold water inlet 111 are mixed and discharged together from the outlet 10.

[0036] The temperature control valve provided in this application drives the adjustment part 20 located in the valve body 1 to move axially and sealably through the drive component 3, thereby changing the opening area of ​​the hot water inlet 110 and the cold water inlet 111 to adjust the ratio of hot and cold water inlet, and realize the water temperature adjustment function at the outlet 10. Moreover, the size and shape of the valve body 1 do not need to be changed, so that the size of the temperature control valve and the thermostatic valve can be kept consistent, saving the mold cost and time cost of developing a non-thermostatic faucet platform. In addition, by changing the area of ​​the hot water inlet 110 and the cold water inlet 111 to change the hot and cold water flow rates, the outlet water flow rate can be increased or decreased as needed without changing the shape of the valve body 1.

[0037] In an optional embodiment, the valve core 2 further includes a connecting portion 21 fixed to the adjusting portion 20. The connecting portion 21 has a threaded hole. The driving member 3 includes a threaded rod 30 threaded into the threaded hole and a driving rod 31 at least partially located outside the valve housing 1. A snap-fit ​​assembly is provided between the valve core 2 and the valve housing 1 to prevent the valve core 2 from rotating relative to the valve housing 1. Please refer to... Figure 3 and Figure 4 The drive rod 31 located outside the valve body 1 drives the threaded rod 30 to rotate. The threaded rod 30 drives the adjustment part 20 to move accordingly through the threaded connection. The snap-fit ​​assembly prevents the valve core 2 from rotating along the ring, so that the adjustment part 20 can only move along the axial direction, thereby adjusting the blocking area of ​​the cold water inlet 111 and the hot water inlet 110, and adjusting the water inlet ratio of hot water and cold water.

[0038] In an optional embodiment, the snap-fit ​​assembly includes a first snap-fit ​​portion 210 and a second snap-fit ​​portion 12 that are slidably snapped together along the axial direction. The first snap-fit ​​portion 210 is located on the connecting portion 21, and the second snap-fit ​​portion 12 is located on the inner wall of the valve housing 1. The axial direction is the axial direction of the valve housing 1. The first snap-fit ​​portion 210 and the second snap-fit ​​portion 12 are slidably snapped together along the axial direction so that the adjusting portion 20 can slide along the axial direction under the drive of the drive rod 31, while preventing the adjusting portion 20 from rotating in the circumferential direction, thus ensuring the accuracy and sensitivity of the adjustment.

[0039] In an optional embodiment, of the first latching portion 210 and the second latching portion 12, one is a latching strip and the other is a latching slot adapted to the latching strip. For example... Figure 3 and Figure 4 As shown, the first locking part 210 can be a locking strip, and the locking groove is provided on the inner wall of the valve body 1. The locking strip slides axially in the locking groove to ensure that the adjusting part 20 does not rotate circumferentially when it moves axially.

[0040] Please refer to Figure 3The number of locking strips can be at least two, and they are arranged circumferentially along the connecting part 21. At least two locking strips are engaged with at least two locking slots in a one-to-one correspondence, so as to further increase the stability of the adjusting part 20 sliding along the axial direction.

[0041] In an optional embodiment, an annular opening 201 is provided on the end face of the adjusting part 20 near the connecting part 21, and the portion of the connecting part 21 connected to the adjusting part 20 is located within the annular opening 201. Taking the end of the adjusting part 20 near the connecting part 21 as the cold water end 204 as an example, the annular opening 201 is used to receive cold water from the cold water inlet 111 in the circumferential direction, mix it with hot water through the water passage 200, and then discharge it from the water outlet 10.

[0042] When the end of the regulating part 20 near the connecting part 21 is the hot water end 205, the annular port 201 is used to receive hot water from the hot water inlet 110 in the circumferential direction and then mix it with cold water through the water passage 200 before flowing out from the outlet 10.

[0043] The annular opening 201 can be either an opening extending circumferentially along the end face of the adjusting part 20, with the connecting part 21 located inside the annular opening 201, or... Figure 4 The number of annular openings 201 shown is multiple and they are arranged at intervals along the circumferential direction on the end face of the adjustment part 20.

[0044] In an optional embodiment, the threaded rod 30 and the drive rod 31 are connected by a connecting rod 32, which seals against the inner wall of the valve housing 1, thereby ensuring the cleanliness of the inside of the valve housing 1 and preventing water from overflowing from the connecting rod 32. Please refer to... Figure 3 and Figure 4 The outer surface of the connecting rod 32 may have an annular groove 322, and a second sealing ring 323 is provided in the annular groove 322. The second sealing ring 323 seals between the connecting rod 32 and the inner wall of the valve body 1. In addition, there may be two or more annular grooves 322, and a second sealing ring 323 is provided in each annular groove 322 to increase the sealing effect.

[0045] In an optional embodiment, the connecting rod 32 and the driving rod 31 are provided with a recessed snap-fit ​​groove 320 at their connection point. The temperature control valve also includes a retaining ring 4, which snaps into the snap-fit ​​groove 320 and at least partially abuts against the end of the valve housing 1. A positioning block 321 is provided on the portion of the connecting rod 32 located inside the valve housing 1, and the side of the positioning block 321 near the driving rod 31 abuts against the inner wall of the valve housing 1. The retaining ring 4 and the positioning block 321 respectively limit the valve core 2 axially. Please refer to... Figures 1 to 4The retaining ring 4 is embedded in the retaining groove 320, which limits the connecting rod 32 in one axial direction through the end of the valve housing 1, preventing the driving rod 31 from moving axially closer to the inside of the valve housing 1. The positioning block 321 limits the connecting rod 32 in the other axial direction through the inner wall of the valve housing 1, preventing the driving rod 31 from moving away from the valve housing 1. The retaining ring 4 and the positioning block 321 provide axial positioning on both sides, preventing the driving component 3 containing the driving rod 31 from moving axially.

[0046] Optionally, such as Figure 3 As shown, the retaining ring 4 has an opening on one side, which makes it easy for the retaining ring 4 to be engaged into the retaining groove 320 from the opening; the positioning block 321 can be an annular block, which abuts against the step inside the valve body 1.

[0047] In an optional embodiment, at least one of the hot water inlet 110 and the cold water inlet 111 is provided with a filter screen 5 on its outer side. The filter screen 5 can filter the water flowing into the corresponding cold water inlet 111 or hot water inlet 110, reducing the impurities carried by the water flowing into the valve body 1. The presence or absence of the filter screen 5 can be selected based on the water flow quality corresponding to the cold water inlet 111 and the hot water inlet 110. It is more preferable to provide filter screens 5 for both the hot water inlet 110 and the cold water inlet 111 to increase the water flow quality of the cold water inlet 111 and the hot water inlet 110.

[0048] In an optional embodiment, the valve housing 1 includes a detachably connected body 13 and a base 14, with the outlet 10 located on the base 14. Please refer to... Figure 3 and Figure 4 After the base 14 is removed from the main body 13, it is convenient to check the condition of the valve core 2 inside the valve housing 1, and it is also convenient to remove the valve core 2 for maintenance or replacement.

[0049] Optionally, the base 14 is installed on the body 13 by means of a threaded connection. The inner wall surface of the body 13 is provided with an internal thread, and the outer side surface of the base 14 is provided with an external thread. The external thread and the internal thread are detachably matched so that the base 14 can be detachably installed on the body 13.

[0050] In an optional embodiment, the outer end face of the drive rod 31 has a mounting hole 310. The mounting hole 310 is used to mount a handle. Rotating the handle drives the adjusting part 20 to move axially, adjusting the ratio of cold water to hot water inlet. Please refer to... Figure 1 and Figure 4 The mounting hole 310 can be a threaded hole, which makes it easy to thread the handle into the drive rod 31.

[0051] In addition, the outer side of the drive rod 31 may be provided with axially extending ridges, and the inside of the handle is provided with a slot. The ridges and the slot are matched to achieve the engagement of the drive rod 31 with the handle.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A thermostatic valve, characterized by The temperature regulating valve comprises a valve shell (1), a valve core (2) and a driving member (3). The valve shell (1) comprises a water outlet (10) and a control area (11) on a side wall, and the control area (11) is provided with a hot water inlet (110) and a cold water inlet (111) arranged in an axial direction. The valve core (2) comprises an adjusting part (20) arranged in the control area (11), the adjusting part (20) comprises a cold water end (204) and a hot water end (205) arranged in an axial direction, and a water passage (200) connecting the cold water end (204) and the hot water end (205), and the water passage (200) is communicated with the water outlet (10). The driving member (3) is at least partially arranged in the valve shell (1) and is drivingly connected with the valve core (2) to drive the adjusting part (20) to sealably slide in the control area (11) in an axial direction to adjust the opening area of the hot water inlet (110) and the cold water inlet (111).

2. The thermostatic valve according to claim 1, characterized in that The valve core (2) further comprises a connecting part (21) fixed with the adjusting part (20), a threaded hole is arranged in the connecting part (21), the driving member (3) comprises a threaded rod (30) screwed in the threaded hole and a driving rod (31) at least partially arranged outside the valve shell (1), and a clamping assembly is arranged between the valve core (2) and the valve shell (1) to prevent the valve core (2) from rotating relative to the valve shell (1).

3. The thermostatic valve according to claim 2, characterized in that The clamping assembly comprises a first clamping part (210) and a second clamping part (12) which are slidably clamped in an axial direction, the first clamping part (210) is arranged on the connecting part (21), and the second clamping part (12) is arranged on an inner wall of the valve shell (1).

4. The thermostatic valve according to claim 3, characterized in that One of the first clamping part (210) and the second clamping part (12) is a clamping strip, and the other is a clamping groove matched with the clamping strip.

5. The thermostatic valve according to claim 2, characterized in that An annular opening (201) is arranged on an end face of one end of the adjusting part (20) close to the connecting part (21), and the part of the connecting part (21) connected with the adjusting part (20) is arranged in the annular opening (201).

6. The thermostatic valve according to claim 2, characterized in that The threaded rod (30) and the driving rod (31) are connected by a connecting rod (32), and the connecting rod (32) is sealed with an inner wall of the valve shell (1).

7. The thermostatic valve according to claim 6, characterized in that The connecting rod (32) and the driving rod (31) are provided with an inner recessed clamping groove (320) at the connection, the temperature regulating valve further comprises a clamping ring (4) clamped in the clamping groove (320), and the clamping ring (4) is at least partially attached to an end of the valve shell (1); a positioning block (321) is arranged on a part of the connecting rod (32) arranged in the valve shell (1), and one side of the positioning block (321) close to the driving rod (31) abuts against an inner wall of the valve shell (1).

8. The thermostatic valve according to any of claims 1 to 7, characterized in that At least one filter screen (5) is arranged on an outer side of the hot water inlet (110) and the cold water inlet (111).

9. The tempering valve of claim 7, wherein The valve shell (1) comprises a main body (13) and a base (14) which are detachably connected, and the water outlet (10) is arranged on the base (14).

10. The thermostatic valve according to claim 2, characterized in that An installation hole (310) is formed in the outer end surface of the driving rod (31).

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