Three-way valve for converging and shunting

Abstract

The utility model relates to the technical field of three-way valves, and discloses a three-way valve for converging and shunting, which comprises a first pipeline and two second pipelines fixedly connected and communicated with the inside of the first pipeline, and valve rods are rotatably connected with the interiors of the second pipelines; a positioning mechanism is arranged at the position, located on the left side of the valve rod, of the upper surface of the second pipeline and comprises a supporting plate, a rack is slidably connected to the front surface of the supporting plate, a rotating rod is rotatably connected to the position, located above the rack, of the front surface of the supporting plate, and a gear is fixedly connected to the exterior of the rotating rod; a ratchet wheel is fixedly connected outside the rotating rod and in front of the gear; the rotary table is rotated to drive the valve rod to rotate, the flow passing through the second pipeline can be adjusted by adjusting the exposed area of the valve hole, a positioning plate in the positioning mechanism is tightly attached to the rotary table, and the situation that the valve rod rotates due to mistaken touch of the rotary table or vibration generated during medium conveying is avoided; unnecessary changes in the flow through the second conduit are caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of three -way valve, concretely is a three -way valve for confluence and shunt. BACKGROUND

[0002] In the existing fluid control system, the three -way valve is widely used in various pipeline systems as an important fluid control device;The existing three -way valve is usually controlled by a total valve body, and in the shunt process, the liquid flowing to the two fluid outlets will be disturbed by the influence of the valve body, when the fluid volume of one side outlet increases or decreases, the fluid volume of the other side will change, at the same time, the fluid volume at the fluid outlet cannot be accurately controlled, which affects the delivery and use of the shunted liquid.

[0003] A shunt type three -way valve (authorized announcement number CN219413616U) is disclosed in Chinese patent, the patent technology can control two fluid outlets independently by setting mutually symmetrical shunt seat, valve ball and sealing seat, reduce the fluid disturbance effect near two fluid outlets, and accurately control the rotation angle of valve ball through the cooperation of scale line and pointer, thereby controlling the flow into the valve hole, so that the flow of different fluid outlets is accurately controlled, which facilitates the delivery and use of the shunted liquid;

[0004] However, it has certain disadvantages: in the actual application process, the handle may drive the valve ball to rotate due to accidental touch (such as accidental touch of staff or slight collision of surrounding objects) or vibration generated during medium conveying, which will change the exposed area of valve hole, resulting in unnecessary change of flow through the outlet pipe, affecting the accurate control of flow. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a three -way valve for confluence and shunt to solve the problems in the above background technology.

[0006] In order to achieve the above -mentioned purpose, the utility model provides the following technical scheme:

[0007] A three -way valve for confluence and shunt, comprising a first pipeline and two second pipelines connected and communicated in the first pipeline, the inside of the second pipeline is rotatably connected with a valve rod, the inside of the valve rod is provided with a valve hole, and the upper end of the valve rod is fixedly connected with a rotating disc;

[0008] The upper surface of the second pipeline is provided with a positioning mechanism on the left side of the valve rod, the positioning mechanism comprises a supporting plate, the front surface of the supporting plate is slidably connected with a rack, the right end of the rack is provided with a positioning piece, the front surface of the supporting plate is rotatably connected with a rotating rod above the rack, the outer part of the rotating rod is fixedly connected with a gear, and the outer part of the rotating rod is fixedly connected with a ratchet wheel in front of the gear, and the front surface of the supporting plate is provided with a limiting mechanism above the right side of the rotating rod.

[0009] As a further scheme of the utility model: the positioning piece comprises a positioning block, the right side surface of the positioning block is fixedly connected with a positioning plate, and the left side surface of the positioning block is fixedly connected with a first spring, and the left side surface of the positioning block is fixedly connected with a positioning rod above and below the first spring.

[0010] As a further scheme of the utility model: the limiting mechanism comprises a second spring, the upper end of the second spring is fixedly connected with a limiting block, and the lower end of the second spring is fixedly connected with a pawl, and the right end of the pawl is rotatably connected with a limiting rod.

[0011] As a further scheme of the utility model: the rotating disc is above the second pipeline, the supporting plate is fixedly connected to the upper surface of the second pipeline, the positioning piece is opposite to the rotating disc, and the gear is meshingly connected to the rack.

[0012] As a further scheme of the utility model: the positioning plate is attached to the rotating disc, the left end of the first spring is fixedly connected to the rack, and the positioning rod is movably embedded in the inside of the rack.

[0013] As a further scheme of the utility model: the pawl is attached to the ratchet wheel, and the rear ends of the limiting block and the limiting rod are fixedly connected to the front surface of the supporting plate.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a rotating disc drives a valve rod to rotate, and the exposed area of a valve hole can be adjusted, so that the flow rate through the second pipeline can be adjusted.

[0016] 2. The utility model discloses a positioning mechanism, and the positioning plate in the positioning mechanism is closely attached to the rotating disc, so that the rotating disc is prevented from rotating due to accidental touch or vibration during medium conveying, and unnecessary changes in the flow rate through the second pipeline are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of a three-way valve for converging and diverging;

[0018] Figure 2It is a structure diagram of a valve rod in a three-way valve for confluence and separation;

[0019] Figure 3 It is a structure diagram of a positioning mechanism in a three-way valve for confluence and separation;

[0020] Figure 4 It is a structure diagram of a limiting mechanism in a three-way valve for confluence and separation.

[0021] In the figure: 1, first pipeline; 2, second pipeline; 3, valve rod; 4, valve hole; 5, rotating disc; 6, positioning mechanism; 7, support plate; 8, rack; 9, positioning piece; 10, positioning block; 11, positioning plate; 12, first spring; 13, positioning rod; 14, rotating rod; 15, gear; 16, ratchet; 17, limiting mechanism; 18, second spring; 19, limiting block; 20, pawl; 21, limiting rod. DETAILED DESCRIPTION

[0022] Please refer to Figure 1 and Figure 2 , the utility model discloses a three-way valve for confluence and separation, including first pipeline 1 and two second pipeline 2 of being fixedly connected and communicated in first pipeline 1 inside, the inside rotationally connected with valve rod 3 of second pipeline 2, the inside being provided with valve hole 4 of valve rod 3, and the upper end of valve rod 3 is fixedly connected with rotating disc 5, and rotating disc 5 is located the top of second pipeline 2;

[0023] The medium from first pipeline 1 flows into two second pipeline 2, and the medium from two second pipeline 2 flows into first pipeline 1 in confluence;

[0024] Rotating rotating disc 5 drives valve rod 3 to rotate, and the exposed area of valve hole 4 can be adjusted to adjust the flow size through second pipeline 2.

[0025] In Figure 1 , Figure 3 and Figure 4The upper surface of the second pipeline 2 is provided with a positioning mechanism 6 on the left side of the valve rod 3, the positioning mechanism 6 comprises a supporting plate 7, the supporting plate 7 is fixedly connected to the upper surface of the second pipeline 2, the front surface of the supporting plate 7 is slidably connected with a rack 8, the right end of the rack 8 is provided with a positioning piece 9, the positioning piece 9 is opposite to the rotating disc 5, the positioning piece 9 comprises a positioning block 10, the right side surface of the positioning block 10 is fixedly connected with a positioning plate 11, the positioning plate 11 is attached to the rotating disc 5, the left side surface of the positioning block 10 is fixedly connected with a first spring 12, the left end of the first spring 12 is fixedly connected to the rack 8, the left side surface of the positioning block 10 is fixedly connected with a positioning rod 13 on the upper and lower sides of the first spring 12, the positioning rod 13 is movably embedded in the inside of the rack 8, the front surface of the supporting plate 7 is rotatably connected with a rotating rod 14 above the rack 8, the outside of the rotating rod 14 is fixedly connected with a gear 15, the gear 15 is meshingly connected to the rack 8, the outside of the rotating rod 14 is fixedly connected with a ratchet wheel 16 in front of the gear 15, the front surface of the supporting plate 7 is provided with a limiting mechanism 17 above the right side of the rotating rod 14, the limiting mechanism 17 comprises a second spring 18, the upper end of the second spring 18 is fixedly connected with a limiting block 19, and the lower end of the second spring 18 is fixedly connected with a pawl 20, the pawl 20 is attached to the ratchet wheel 16, the right end inside of the pawl 20 is rotatably connected with a limiting rod 21, and the rear ends of the limiting block 19 and the limiting rod 21 are fixedly connected to the front surface of the supporting plate 7.

[0026] The pawl 20 is attached to the ratchet wheel 16, so that the gear 15 can be normally counterclockwise rotated and cannot be clockwise rotated, that is, the rack 8 can be normally moved to the right and cannot be moved to the left; after the pawl 20 is pulled away from the ratchet wheel 16, the gear 15 can be clockwise rotated, that is, the rack 8 can be moved to the left.

[0027] The rack 8 is pushed to drive the positioning plate 11 to closely attach to the rotating disc 5 and compress the first spring 12, so that the rotating disc 5 can be fixed, and the rotating disc 5 is prevented from rotating due to accidental touch or vibration during medium conveying, so that unnecessary changes of the flow through the second pipeline 2 are avoided.

[0028] The working principle of the utility model is as follows: in use, the rotating disc 5 is rotated to drive the valve rod 3 to rotate according to requirements, the exposed area of the valve hole 4 is adjusted, and then the flow through the second pipeline 2 is adjusted; after adjustment, the rack 8 is pushed to the right to drive the positioning plate 11 to attach to the rotating disc 5 until the first spring 12 is compressed and cannot be pushed any more; finally, the first pipeline 1 and the second pipeline 2 are connected to the water flow channel.

[0029] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0030] In the description of the utility model, it is to explain, unless another explicit stipulation and limit, term " install " " link " " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electric connection, can be direct connection, also can indirectly connect through intermediate medium, can be two element inside communication. For ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

Claims

1. A tee valve for converging and diverging, comprising a first pipe (1) and two second pipes (2) fixedly connected and communicated with the inside of the first pipe (1), the inside of the second pipe (2) is rotatably connected with a valve rod (3), the inside of the valve rod (3) is provided with a valve hole (4), and the upper end of the valve rod (3) is fixedly connected with a rotating disc (5). characterized in that The upper surface of the second pipe (2) is provided with a positioning mechanism (6) on the left side of the valve rod (3), the positioning mechanism (6) comprises a supporting plate (7), the front surface of the supporting plate (7) is slidably connected with a rack (8), the right end of the rack (8) is provided with a positioning piece (9), the front surface of the supporting plate (7) is rotatably connected with a rotating rod (14) above the rack (8), the outside of the rotating rod (14) is fixedly connected with a gear (15), and the outside of the rotating rod (14) is fixedly connected with a ratchet wheel (16) in front of the gear (15), the front surface of the supporting plate (7) is provided with a limiting mechanism (17) above the right of the rotating rod (14).

2. A three-way valve for merging and dividing according to claim 1, characterized in that The positioning piece (9) comprises a positioning block (10), the right side surface of the positioning block (10) is fixedly connected with a positioning plate (11), and the left side surface of the positioning block (10) is fixedly connected with a first spring (12), the left side surface of the positioning block (10) is fixedly connected with a positioning rod (13) above and below the first spring (12).

3. A three-way valve for merging and splitting according to claim 1, characterized in that The limiting mechanism (17) comprises a second spring (18), the upper end of the second spring (18) is fixedly connected with a limiting block (19), and the lower end of the second spring (18) is fixedly connected with a pawl (20), the right end of the pawl (20) is rotatably connected with a limiting rod (21) inside.

4. The three-way valve for merging and dividing according to claim 1, characterized by, The rotating disc (5) is above the second pipe (2), the supporting plate (7) is fixedly connected to the upper surface of the second pipe (2), the positioning piece (9) is opposite to the rotating disc (5), and the gear (15) is meshingly connected to the rack (8).

5. A three-way valve for merging and splitting according to claim 2, characterized in that The positioning plate (11) is attached to the rotating disc (5), the left end of the first spring (12) is fixedly connected to the rack (8), and the positioning rod (13) is movably embedded in the inside of the rack (8).

6. A three-way valve for merging and splitting according to claim 3, characterized in that The pawl (20) is attached to the ratchet wheel (16), and the rear ends of the limiting block (19) and the limiting rod (21) are fixedly connected to the front surface of the supporting plate (7).

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