Three-way spherical valve

Abstract

The three-way spherical valve comprises a valve body and a valve element, a valve element cavity is formed in the valve body, a water inlet channel, a first water outlet channel and a second water outlet channel which are communicated with the valve element cavity are arranged on the valve body, the end, connected with the valve element cavity, of the first water outlet channel is a first water guide opening, and the end, connected with the valve element cavity, of the second water outlet channel is a second water guide opening. The first water outlet channel is closed when the valve element is located at the first water guide port, the second water outlet channel is closed when the valve element is located at the second water guide port, and the valve is characterized in that a driving device capable of driving the valve element to rotate and switch between the first water guide port and the second water guide port is arranged on the valve body. By the adoption of the design, the water hammer effect can be remarkably reduced, meanwhile, a spring is not needed at the valve element, and the problem that the service life is shortened due to spring failure does not exist.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a three-way ball valve. Background Technology

[0002] The three-way valves in current gas-fired boilers are typically spring-loaded, switching between different flow paths. This spring-loaded switch can produce a water hammer sound during system switching. Furthermore, due to the unpredictable nature of the water level in the system, prolonged immersion in water may cause the spring to fail and lose its function. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a three-way ball valve that eliminates the need for a spring at the valve core and can significantly reduce the water hammer effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A three-way ball valve includes a valve body and a valve core. The valve body has a valve core cavity. The valve body has an inlet channel, a first outlet channel, and a second outlet channel communicating with the valve core cavity. The end of the first outlet channel connected to the valve core cavity is a first guide port, and the end of the second outlet channel connected to the valve core cavity is a second guide port. When the valve core is located at the first guide port, the first outlet channel is closed; when the valve core is located at the second guide port, the second outlet channel is closed. The valve body is provided with a drive device capable of driving the valve core to rotate and switch between the two positions of the first guide port and the second guide port.

[0006] As a further optimization of the above solution, the valve core is spherical, and the hardness of the valve core is less than that of the valve body.

[0007] As a further optimization of the above solution, the driving device includes a motor, the output end of which is connected to a transmission shaft that can rotate around its own axis, and the valve core is installed at the end of the transmission shaft with the axis of the valve core offset from the axis of the rotating shaft.

[0008] As a further optimization of the above solution, the valve body is provided with a shaft hole, the transmission shaft includes a main shaft section that rotates with the shaft hole and an eccentric shaft that is fixed with the main shaft section, and the valve core is sleeved on the eccentric shaft.

[0009] As a further optimization of the above solution, the transmission shaft is provided with a first limit block and a second limit block, and the valve body is also provided with a first limit switch corresponding to the first limit block and a second limit switch corresponding to the second limit block. When the valve core is located at the first water inlet, the first limit block triggers the first limit switch, and when the valve core is located at the second water inlet, the second limit block triggers the second limit switch.

[0010] As a further optimization scheme of the above scheme, the end of the first water outlet has a first water outlet, and a first pipe joint is detachably mounted at the first water outlet, a circumferential first clamping groove is arranged on the outer side wall of the first pipe joint, and a first clamping spring that cooperates with the first clamping groove is arranged on the valve body to lock the first pipe joint.

[0011] As a further optimization scheme of the above scheme, the first clamping spring is a U-shaped rod, the first clamping spring includes two vertical rods and a horizontal rod connected between the two vertical rods, guide holes that can guide the two vertical rods of the first clamping spring to be inserted into the first clamping groove are arranged on the valve body, and a buckle that buckles on the horizontal rod to limit the first clamping spring from being pulled out of the first clamping groove is further arranged on the valve body.

[0012] As a further optimization scheme of the above scheme, the valve body has a standby water inlet, a second pipe joint is detachably mounted at the standby water inlet, a circumferential second clamping groove is arranged on the outer side wall of the second pipe joint, and a second clamping spring that cooperates with the second clamping groove is arranged on the valve body to lock the second pipe joint.

[0013] As a further optimization scheme of the above scheme, the second clamping spring includes two vertical clamping plates and a horizontal plate that connects the upper ends of the two vertical clamping plates together, the inner sides of the two vertical clamping plates are each provided with a circular arc surface that cooperates with the bottom surface of the second clamping groove, the inner side of the vertical clamping plate is further provided with an inclined guide surface below the circular arc surface, and a guide groove that can guide the two vertical clamping plates of the second clamping spring to be inserted into the second clamping groove is arranged on the valve body.

[0014] The beneficial effects of the present utility model are: this design can significantly reduce water hammer effect, and the valve core does not need a spring, and there is no problem of reduced service life due to spring failure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is one of the cross-sectional views of the first working state of the present utility model;

[0017] Figure 3 is the second cross-sectional view of the first working state of the present utility model;

[0018] Figure 4 is the cross-sectional view of the second working state of the present utility model;

[0019] Figure 5 is an exploded view of the power structure of the valve core;

[0020] Figure 6 is one of exploded view of the utility model;

[0021] Figure 7 is Figure 6 is an enlarged view of part A in the middle;

[0022] Figure 8 is the second exploded view of the utility model;

[0023] Figure 9 is a perspective view of the second spring. DETAILED DESCRIPTION

[0024] The technical solutions of the utility model will be described clearly and completely below with reference to the drawings.

[0025] 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.

[0026] With reference to Figures 1 to 9 , the utility model provides a tee ball valve, including valve body 1 and valve core 2, be provided with valve core cavity 101 in valve body 1, be provided with with water channel 11, first water outlet 12 and second water outlet 13 of communicating with valve core cavity 101 on valve body 1, and the end connected with valve core cavity 101 of first water outlet 12 is first water guide port 102, and the end connected with valve core cavity 101 of second water outlet 13 is second water guide port 103, and valve core 2 is closed first water outlet 12 when being located first water guide port 102, and valve core 2 is closed second water outlet 13 when being located second water guide port 103, its characterized in that, be provided with the drive device that can drive valve core 2 rotates and switches between first water guide port 102 and second water guide port 103 on valve body 1.

[0027] 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. With reference to Figure 4 , when the valve core 2 rotates to the first water guide port 102, the first water outlet 12 is closed, and at this time, the water flow enters the valve core cavity 101 from the water inlet channel 11 and then flows out from the second water outlet 13; with reference to Figure 2 and Figure 3, the valve core 2 rotates to the second water guide 103, the second water outlet 13 is closed, at this time the water flow from the water inlet 11 into the valve core cavity 101, will from the first water outlet 12. With this design, the water hammer effect can be significantly reduced, and the valve core 2 does not need spring, there is no problem of spring failure and reducing service life.

[0028] Referring to Figures 5 to 7 , in a preferred embodiment of the utility model, the driving device includes a motor 3, the output end of motor 3 is connected with the transmission shaft 4 that can rotate around its axis, the valve core 2 is installed at the end of transmission shaft 4 and the axis of valve core 2 is staggered with the axis of rotating shaft. The axis of valve core 2 and the axis of rotating shaft can be parallel to each other, or there can be a certain angle. Specifically, the valve body 1 is provided with a shaft hole, the transmission shaft 4 includes the main shaft section 41 that rotates with the shaft hole, and the 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 adopts metal material, such as brass, stainless steel and the like, and the brass is the best. In this scheme, under the power of motor 3, the valve core 2 eccentrically rotates around the axis of main shaft section 41, and then switches between the first water guide 102 and the second water guide 103.

[0029] Further, the transmission shaft 4 is provided with the first limit block 401 and the second limit block 402, and the valve body 1 is further provided with the first limit switch 51 corresponding to the first limit block 401 and the second limit switch 52 corresponding to the second limit block 402. The first limit switch 51 and the second limit switch 52 can be contact type travel switch, or photoelectric switch, hall inductive switch and the like. When the valve core 2 is located at the first water guide 102, the first limit block 401 triggers the first limit switch 51, at this time, the signal that the valve core 2 has reached the first water guide 102 can be fed back to the central control system; when the valve core 2 is located at the second water guide 103, the second limit block 402 triggers the second limit switch 52, at this time, the signal that the valve core 2 has reached the second water guide 103 can be fed back to the central control system.

[0030] The end of water inlet 11 has water inlet 115, and the end of second water outlet 13 has second water outlet 135. Referring to Figure 8, the end of the first water outlet 12 has a first water outlet 105, and the first water outlet 105 is detachably provided with a first pipe joint 61, the outer side wall of the first pipe joint 61 is provided with a circumferential first clamping groove 601, and the valve body 1 is provided with a first clamping spring 81 matched with the first clamping groove 601 to lock the first pipe joint 61. A sealing step is arranged in the first water outlet 12, and a sealing ring 7 is arranged between the sealing step and the end face of the first end of the first pipe joint 61. Specifically, the first clamping spring 81 is a U-shaped rod, the first clamping spring 81 includes two vertical rods 811 and a horizontal rod 812 connected between the two vertical rods 811, the valve body 1 is provided with two guide holes 106 capable of guiding the two vertical rods 811 of the first clamping spring 81 to insert into the first clamping groove 601, and the valve body 1 is further provided with a buckle 15 buckled on the horizontal rod 812 to limit the first clamping spring 81 from being pulled out of the first clamping groove 601. 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 81 to prevent it from being pulled out of the guide hole 106.

[0031] Referring to Figure 8 With Figure 9 , the valve body 1 has a standby water inlet 107, the standby water inlet 107 is detachably provided with a second pipe joint 62, the outer side wall of the second pipe joint 62 is provided with a circumferential second clamping groove 602, and the valve body 1 is provided with a second clamping spring 82 matched with the second clamping groove 602 to lock the second pipe joint 62. A sealing step is arranged in the standby water inlet 107, and a sealing ring 7 is arranged between the sealing step and the end face of the first end of the second pipe joint 62. Specifically, the second clamping spring 82 includes two vertical clamping plates 821 and a horizontal plate 822 connecting the upper ends of the two vertical clamping plates 821 together, the inner sides of the two vertical clamping plates 821 are provided with arc surfaces 801 matched with the bottom surfaces of the second clamping grooves 602, and the inner sides of the vertical clamping plates 821 are further provided with inclined guide surfaces 802 below the arc surfaces 801. The valve body 1 is provided with a guide groove 109 capable of guiding the two vertical clamping plates 821 of the second clamping spring 82 to insert into the second clamping groove 602. With this clamping spring to fix the second pipe joint 62, the second pipe joint 62 is convenient to disassemble and assemble.

[0032] 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 according to the contents of 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 three-way ball valve, comprising a valve body (1) and a valve core (2), a valve core cavity (101) is arranged in the valve body (1), a water inlet channel (11), a first water outlet channel (12) and a second water outlet channel (13) are arranged on the valve body (1) and communicate with the valve core cavity (101), a first water guide opening (102) is arranged at one end of the first water outlet channel (12) connected with the valve core cavity (101), a second water guide opening (103) is arranged at one end of the second water outlet channel (13) connected with the valve core cavity (101), the valve core (2) closes the first water outlet channel (12) when located at the first water guide opening (102), and the valve core (2) closes the second water outlet channel (13) when located at the second water guide opening (103), characterized in that, The valve body (1) is provided with a drive device capable of driving the valve core (2) to rotate and switch between the first water guide opening (102) and the second water guide opening (103).

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

3. A three-way globe valve according to claim 1, characterized in that The drive device includes a motor (3), the output end of the motor (3) is connected with a transmission shaft (4) capable of rotating around its own axis, 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 transmission shaft.

4. A three-way globe valve according to claim 3, characterized in that The valve body (1) is provided with a shaft hole, the transmission shaft (4) includes a main shaft section (41) rotatingly matched with the shaft hole and an eccentric shaft (42) fixed with the main shaft section (41), and the valve core (2) is sleeved on the eccentric shaft (42).

5. A three-way globe valve according to claim 3, wherein The transmission shaft (4) is provided with a first limiting block (401) and a second limiting block (402), the valve body (1) is further provided with a first limiting switch (51) corresponding to the first limiting block (401) and a second limiting switch (52) corresponding to the second limiting block (402), when the valve core (2) is located in the first water guide opening (102), the first limiting block (401) triggers the first limiting switch (51), and when the valve core (2) is located in the second water guide opening (103), the second limiting block (402) triggers the second limiting switch (52).

6. A three-way globe valve according to claim 1, wherein The end of the first water outlet (12) has a first water outlet (105), a first pipe joint (61) is detachably installed at the first water outlet (105), a circumferential first clamping groove (601) is arranged on the outer side wall of the first pipe joint (61), and a first clamping spring (81) matched with the first clamping groove (601) is arranged on the valve body (1) to lock the first pipe joint (61).

7. A three-way globe valve according to claim 6, characterized in that The first clamping spring (81) is a U-shaped rod, the first clamping spring (81) includes two vertical rods (811) and a horizontal rod (812) connected between the two vertical rods (811), the valve body (1) is provided with a guide hole (106) capable of guiding the two vertical rods (811) of the first clamping spring (81) to insert into the first clamping groove (601), and the valve body (1) is further provided with a buckle (15) buckled on the horizontal rod (812) to limit the first clamping spring (81) from being pulled out of the first clamping groove (601).

8. A three-way globe valve according to claim 1, wherein The valve body (1) has a standby water inlet (107), a second pipe joint (62) is detachably installed at the standby water inlet (107), a circumferential second clamping groove (602) is arranged on the outer side wall of the second pipe joint (62), and a second clamping spring (82) matched with the second clamping groove (602) is arranged on the valve body (1) to lock the second pipe joint (62).

9. A three-way globe valve according to claim 8, characterized in that The second clamping spring (82) comprises two vertical clamping plates (821) and a horizontal plate (822) connecting upper ends of the two vertical clamping plates (821) together, inner sides of the two vertical clamping plates (821) are respectively provided with a circular arc surface (801) matched with a bottom surface of the second clamping groove (602), and inner sides of the vertical clamping plates (821) are further provided with an inclined guide surface (802) located below the circular arc surface (801), and the valve body (1) is provided with a guide groove (109) capable of guiding the two vertical clamping plates (821) of the second clamping spring (82) to insert into the second clamping groove (602).

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