Four-way flow control valve

Abstract

The four-way flow control valve comprises a valve body and a valve element, a valve element cavity is formed in the valve body, a water outlet channel, a first water inlet channel and a second water inlet channel which are communicated with the valve element cavity are arranged on the valve body, a first water inlet is formed in one end of the first water inlet channel, and a first water guide opening in butt joint with the valve element cavity is formed in the other end of the first water inlet channel. One end of the second water inlet channel is provided with a second water inlet and a third water inlet, the other end of the second water inlet channel is provided with a second water guide port in butt joint with the valve element cavity, and the first water inlet channel is closed when the valve element is located at the first water guide port; the valve body is provided with a driving device capable of driving the valve element to rotate and be switched between the first water guide opening and the second water guide opening. The four-way flow control valve can be compatible with multiple heat sources, the water hammer effect can be remarkably reduced, meanwhile, no spring is needed at the valve element, and the problem that the service life is shortened due to the failure of the spring does not exist.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a four -way control flow valve. BACKGROUND

[0002] The valve in the current gas heating stove is a three -way valve, which can only be compatible with two heat sources, and the three -way valve is basically a spring three -way valve, which switches different flow channels through the spring three -way valve, and there is a hard pressure water hammer sound in the system switching. In addition, due to the uncertainty of the system water, long -term placement in water may cause spring failure and lose function. SUMMARY

[0003] Therefore, the utility model discloses a four -way control flow valve without spring at the valve core, which can significantly reduce the water hammer effect.

[0004] The utility model discloses a technical scheme that is adopted to solve its technical problem is:

[0005] A four -way control flow valve, including valve body and valve core, the valve body is provided with valve core cavity, the valve body is provided with water outlet, first water inlet and second water inlet with valve core cavity intercommunication, one end of first water inlet has first water inlet, and the other end has the first water guide port of butt joint with valve core cavity, one end of second water inlet has second water inlet and third water inlet, and the other end has the second water guide port of butt joint with valve core cavity, when the valve core is located first water guide port, first water inlet is closed, when the valve core is located second water guide port, second water inlet is closed, the valve body is provided with the drive device that can drive the valve core rotates and switches between the two positions of first water guide port and second water guide port.

[0006] In an embodiment, the valve core is spherical, and the hardness of the valve core is less than the hardness of the valve body.

[0007] In an embodiment, the drive device includes a driver, the output end of the driver is connected with a transmission shaft capable of rotating around its axis, the valve core is installed at the end of the transmission shaft, and the axis of the valve core is offset from the axis of the transmission shaft.

[0008] In an embodiment, the valve body is provided with a shaft hole, the transmission shaft includes a main shaft section rotationally matched with the shaft hole, and an eccentric shaft fixed with the main shaft section, and the valve core is sleeved on the eccentric shaft.

[0009] In an embodiment, the transmission shaft is provided with a first limiting block and a second limiting block, and the valve body is further provided with a first limiting switch corresponding to the first limiting block and a second limiting switch corresponding to the second limiting block; when the valve core is located at the first water guide opening, the first limiting block triggers the first limiting switch; and when the valve core is located at the second water guide opening, the second limiting block triggers the second limiting switch.

[0010] In an embodiment, the first pipe joint is detachably installed at the second water inlet, and a circumferential first clamping groove is arranged on the outer side wall of the first pipe joint; and the valve body is provided with a first clamping spring matched with the first clamping groove to lock the first pipe joint.

[0011] In an embodiment, the first clamping spring is a U-shaped rod, the first clamping spring comprises two vertical rods and a horizontal rod connected between the two vertical rods, the valve body is provided with a guide hole capable of guiding the two vertical rods of the first clamping spring to be inserted into the first clamping groove, and the valve body is further provided with a buckle clamped on the horizontal rod to limit the first clamping spring from being pulled out of the first clamping groove.

[0012] In an embodiment, the second pipe joint is detachably installed at the third water inlet, and the valve body is provided with a second clamping spring for locking the second pipe joint; the second clamping spring comprises two vertical clamping plates and a horizontal plate connecting the upper ends of the two vertical clamping plates together, the inner sides of the two vertical clamping plates are provided with arc surfaces matched with the outer circumferential wall of the second pipe joint, and the inner sides of the vertical clamping plates are further provided with inclined guide surfaces located below the arc surfaces; and the valve body is provided with a guide groove capable of guiding the second clamping spring to clamp the second pipe joint.

[0013] The four-way flow control valve has the advantages that multiple heat sources can be compatible, water hammer effect can be significantly reduced, and the valve core does not need a spring, so that the problem of reduced service life caused by spring failure is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a sectional view of the first working state of the utility model;

[0015] Figure 2 is a sectional view of the second working state of the utility model;

[0016] Figure 3 is a perspective view of the utility model;

[0017] Figure 4 is one of exploded views of the utility model;

[0018] Figure 5 is Figure 4 is an enlarged view of part A in the figure;

[0019] Figure 6 is the second exploded view of the utility model. DETAILED DESCRIPTION

[0020] The technical solutions of the utility model will be described clearly and completely below with reference to the drawings.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly. In addition, the description of "preferred", "second preferred", etc. in the utility model is only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "preferred" and "second preferred" can explicitly or implicitly include at least one of the features.

[0022] Referring to Figures 1 to 6 The utility model provides a four -way control flow valve, including valve body 1 and valve core 2, be provided with valve core cavity 100 in valve body 1, be provided with water outlet 11, first water inlet 12 and second water inlet 13 with valve core cavity 100 intercommunication on valve body 1, first water inlet 12 has first water inlet 104 in one end, and the other end has the first water guide mouth 101 of butt joint with valve core cavity 100, second water inlet 13 has second water inlet 102 and third water inlet 103 in one end, and the other end has the second water guide mouth 105 of butt joint with valve core cavity 100, valve core 2 closes first water inlet 12 when being located first water guide mouth 101, valve core 2 closes second water inlet 13 when being located second water guide mouth 105, be provided with the drive arrangement of the drive valve core 2 and rotate switching between first water guide mouth 101 and second water guide mouth 105 two positions on valve body 1.

[0023] Preferably, the valve core 2 is spherical, and the hardness of the valve core 2 is less than the hardness of the valve body 1. The valve body 1 is generally made of cast iron, die-cast aluminum alloy, etc. The valve core 2 is generally made of plastic material. Referring to Figure 4 When the valve core 2 is rotated to the first water guide mouth 101, the first water inlet 12 is closed, at this time, the water flow enters the valve core cavity 100 from the second water inlet 13, and then flows out from the water outlet 11; referring to Figure 2, the valve core 2 rotates to the second water guide 105, the second water inlet 13 is closed, at this time the water flow enters the valve core cavity 100 from the first water inlet 12, and then flows out from the water outlet 11. Of course, in the above two modes, the water flow direction can also be changed as needed. For example, when the valve core 2 is located at the first water guide 101, the water flow enters the valve core cavity 100 from the water outlet 11, and then flows out from the second water inlet 102 or the third water inlet 103 of the second water inlet 13; for example, when the valve core 2 is located at the second water guide 105, the water flow enters the valve core cavity 100 from the water outlet 11, and then flows out from the first water inlet 12.

[0024] With this design, multiple heat sources can be compatible, water hammer effect can be significantly reduced, and the valve core 2 does not need a spring, so there is no problem of reduced service life due to spring failure.

[0025] Preferably, the driving device includes a driver 3, which is preferably a servo motor, and the output end of the driver 3 is connected with a transmission shaft 4 capable of rotating around its own axis, and the valve core 2 is installed at the end of the transmission shaft 4 and the axis of the valve core 2 is offset from the axis of the rotating shaft. The axis of the valve core 2 and the axis of the rotating shaft can be parallel to each other or can have a certain angle. Specifically, the valve body 1 is provided with a shaft hole 106, the transmission shaft 4 includes a main shaft section 41 that rotates with the shaft hole 106, and an eccentric shaft 42 that is fixed with the main shaft section 41, and the valve core 2 is sleeved on the eccentric shaft 42. The transmission shaft 4 is made of a metal material, such as brass, stainless steel, etc., among which brass is the best. In this scheme, under the power of the motor, the valve core 2 rotates eccentrically around the axis of the main shaft section 41, thereby switching between the first water guide 101 and the second water guide 105.

[0026] Further, the transmission shaft 4 is provided with a first limit block 405 and a second limit block 406, and the valve body 1 is further provided with a first limit switch 51 corresponding to the first limit block 405 and a second limit switch 52 corresponding to the second limit block 406, the first limit block 405 triggers the first limit switch 51 when the valve core 2 is located at the first water guide 101, and the second limit block 406 triggers the second limit switch 52 when the valve core 2 is located at the second water guide 105. The first limit switch 51 and the second limit switch 52 can be contact type travel switches, or can be photoelectric switches, Hall effect switches, etc. When the valve core 2 is located at the first water guide 101, the first limit block 405 triggers the first limit switch 51, which can feed back a signal to the central control system that the valve core 2 has reached the first water guide 101; when the valve core 2 is located at the second water guide 105, the second limit block 406 triggers the second limit switch 52, which can feed back a signal to the central control system that the valve core 2 has reached the second water guide 105.

[0027] The first pipe joint 61 is detachably installed at the second water inlet 102, and a first clamping groove 611 is arranged on the outer side wall of the first pipe joint 61, and a first clamping spring 7 is arranged on the valve body 1 to cooperate with the first clamping groove 611 to lock the first pipe joint 61. The first pipe joint 61 is sleeved with a sealing ring 8. Specifically, the first clamping spring 7 is a U-shaped rod, the first clamping spring 7 includes two vertical rods 71 and a horizontal rod 72 connected between the two vertical rods 71, a guide hole capable of guiding the two vertical rods 71 of the first clamping spring 7 to insert into the first clamping groove 611 is arranged on the valve body 1, and a buckle 15 is arranged on the valve body 1 to buckle on the horizontal rod 72 to limit the first clamping spring 7 from being pulled out of the first clamping groove 611. With this design, the first pipe joint 61 is convenient to disassemble and assemble, and after the first pipe joint 61 is assembled, the buckle 15 can lock the first clamping spring 7 to avoid the first clamping spring 7 from being pulled out of the guide hole.

[0028] The outlet of the water outlet channel 11 has a water outlet 108, and the pipe joint at the water outlet 108 is also a first pipe joint 61, which is also locked by the first clamping spring 7.

[0029] The second pipe joint 62 is detachably installed at the third water inlet 103, and a second clamping spring 9 is arranged on the valve body 1 to lock the second pipe joint 62, the second clamping spring 9 includes two vertical clamping plates 92 and a horizontal plate 91 connecting the upper ends of the two vertical clamping plates 92 together, the inner sides of the two vertical clamping plates 92 are both provided with an arc surface 901 matched with the outer peripheral wall of the second pipe joint 62, and the inner side of the vertical clamping plate 92 is further provided with an inclined guide surface 902 below the arc surface 901, and a guide groove capable of guiding the second clamping spring 9 to clamp the second pipe joint 62 is arranged on the valve body 1. With this clamping spring to fix the second pipe joint 62, the second pipe joint 62 is convenient to disassemble and assemble.

[0030] The second pipe joint 62 is also installed at the first water inlet 104, and the second pipe joint 62 is also locked by the second clamping spring 9.

[0031] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by the present application specification and drawings, or direct or indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A four-way control valve comprising a valve body (1) and a valve core (2), characterized in that, The valve body (1) is provided with a valve core cavity (100), the valve body (1) is provided with a water outlet (11), a first water inlet (12) and a second water inlet (13) which communicate with the valve core cavity (100), one end of the first water inlet (12) is provided with a first water inlet (104), the other end is provided with a first water guide (101) which is connected with the valve core cavity (100), one end of the second water inlet (13) is provided with a second water inlet (102) and a third water inlet (103), the other end is provided with a second water guide (105) which is connected with the valve core cavity (100), the valve core (2) is located in the first water guide (101) to close the first water inlet (12), the valve core (2) is located in the second water guide (105) to close the second water inlet (13), the valve body (1) is provided with a driving device which can drive the valve core (2) to rotate and switch between the first water guide (101) and the second water guide (105).

2. A four-way control valve according to claim 1, characterized in that The valve core (2) is spherical, the hardness of the valve core (2) is less than the hardness of the valve body (1).

3. A four-way control valve according to claim 1 or 2, characterized in that The driving device includes a driver (3), the output end of the driver (3) is connected with a transmission shaft (4) which can rotate around its axis, the valve core (2) is installed at the end of the transmission shaft (4) and the axis of the valve core (2) is deviated from the axis of the transmission shaft.

4. A four-way control valve according to claim 3, wherein The valve body (1) is provided with a shaft hole (106), the transmission shaft (4) includes a main shaft section (41) which rotates with the shaft hole (106) and an eccentric shaft (42) which is fixed with the main shaft section (41), the valve core (2) is sleeved on the eccentric shaft (42).

5. A four-way control valve according to claim 3, wherein The transmission shaft (4) is provided with a first limiting block (405) and a second limiting block (406), the valve body (1) is further provided with a first limiting switch (51) which corresponds to the first limiting block (405) and a second limiting switch (52) which corresponds to the second limiting block (406), when the valve core (2) is located in the first water guide (101), the first limiting block (405) triggers the first limiting switch (51), when the valve core (2) is located in the second water guide (105), the second limiting block (406) triggers the second limiting switch (52).

6. A four-way control valve according to claim 1, wherein A first pipe joint (61) is detachably installed at the second water inlet (102), the outer side wall of the first pipe joint (61) is provided with a circumferential first clamping groove (611), the valve body (1) is provided with a first clamping spring (7) which cooperates with the first clamping groove (611) to lock the first pipe joint (61).

7. A four-way control valve according to claim 6, wherein The first clamping spring (7) is a U-shaped rod, comprising two vertical rods (71) and a horizontal rod (72) connected between the two vertical rods (71), the valve body (1) is provided with guide holes capable of guiding the two vertical rods (71) of the first clamping spring (7) to be inserted into the first clamping groove (611), and the valve body (1) is further provided with a buckle (15) buckled on the horizontal rod (72) to limit the first clamping spring (7) from being pulled out of the first clamping groove (611).

8. A four-way control valve according to claim 1, wherein A second pipe joint (62) is detachably installed at the third water inlet (103), the valve body (1) is provided with a second clamping spring (9) for locking the second pipe joint (62), the second clamping spring (9) comprises two vertical clamping plates (92) and a horizontal plate (91) connecting the upper ends of the two vertical clamping plates (92) together, the inner sides of the two vertical clamping plates (92) are provided with arc surfaces (901) matched with the outer peripheral wall of the second pipe joint (62), and the inner sides of the vertical clamping plates (92) are further provided with inclined guide surfaces (902) below the arc surfaces (901), and the valve body (1) is provided with guide grooves capable of guiding the second clamping spring (9) to clamp the second pipe joint (62).

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