Chemical liquid flow control device

Abstract

The utility model discloses a chemical liquid flow control device which comprises a pipeline, a liquid storage tank and a liquid pumping box, a screw rod is rotationally arranged on the upper end face of the pipeline, a lifting plate is arranged on the screw rod in a threaded and sleeved mode, a movable opening is formed in the pipeline, a movable groove is formed in the upper end face of the pipeline, a sliding rod is arranged in the movable groove, and the sliding rod is connected with the liquid storage tank. The sliding rod is slidably sleeved with a movable frame through an elastic mechanism, the movable frame is connected with the screw through a limiting mechanism, fan blades are arranged in the pipeline, a rotating chamber and a liquid pumping chamber are arranged in the liquid pumping box, and a reciprocating lead screw is arranged in the rotating chamber. The rotating gear, the limiting gear, the movable frame, the sliding rod and the spring are arranged, meshing limiting is carried out through the limiting gear meshed with the rotating gear, screw rotation caused by mistaken touch is avoided, and therefore the stability of flow control is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of flow control, in particular to a chemical liquid flow control device. Background Art

[0002] Flow control has a wide range of applications, such as water supply equipment, air filling devices, and pneumatic tools. Flow control devices are needed to change the flow rate in response to different needs.

[0003] During the process of supplying chemical liquid, it is circulated and transported with the help of pipelines. A flow control device will be set on the pipeline to realize flow control. The flow control device generally controls the flow by changing the size of the gap. Common components include components such as a screw and a movable plate. The movable plate can be adjusted by rotating the screw. However, the screw generally lacks a limit assembly and is prone to rotate due to accidental touch, thereby causing the size of the gap to change, ultimately affecting the flow control. In order to improve its stability during use, a chemical liquid flow control device is re-proposed herein. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a chemical liquid flow control device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A chemical liquid flow control device comprises a pipeline, a liquid storage tank and a pump liquid box, wherein a screw is rotatably provided on the upper end surface of the pipeline, a lifting plate is provided on the threaded sleeve of the screw, a movable opening is provided on the pipeline, a movable groove is provided on the upper end surface of the pipeline, a sliding rod is provided in the movable groove, a movable frame is provided on the sliding rod through an elastic mechanism sliding sleeve, the movable frame is connected to the screw through a limiting mechanism, a fan blade is provided in the pipeline, a rotating chamber and a pump liquid chamber are provided in the pump liquid box, a reciprocating screw is provided in the rotating chamber, the reciprocating screw is connected to the fan blade through a rotating mechanism, a piston plate is provided in the pump liquid chamber, the piston plate is connected to the reciprocating screw through a reciprocating mechanism, and a liquid inlet pipe and a liquid outlet pipe are installed on the pump liquid box.

[0007] Preferably, the elastic mechanism comprises a spring sleeved on the outside of the slide rod, and two ends of the spring are elastically connected to the outer wall of the movable frame and the inner wall of the movable groove respectively.

[0008] Preferably, the limiting mechanism comprises a rotating gear fixedly arranged on the end of the screw rod, and the upper end surface of the movable frame is fixedly provided with a limiting gear, and the rotating gear is meshed with the limiting gear.

[0009] Preferably, the rotating mechanism comprises a rotating shaft which is arranged on the upper end surface of the pipe and connected to the fan blades, and the other end of the rotating shaft is connected to the reciprocating screw.

[0010] Preferably, the reciprocating mechanism comprises a connecting frame threadedly sleeved on the reciprocating screw, and an end of the connecting frame is located in the pump liquid chamber and fixedly connected to the piston plate.

[0011] Preferably, a first valve is provided in the liquid inlet pipe, and a second valve is provided in the liquid outlet pipe, and both the first valve and the second valve are one-way valves.

[0012] Preferably, the piston plate is sealingly and slidably arranged in the pump liquid chamber, and the lifting plate is sealingly and slidably arranged in the movable port.

[0013] Preferably, the pipeline is L-shaped, and the inner bottom wall of the liquid storage tank is concave.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting a rotating gear, a limit gear, a movable frame, a slide rod and a spring, the limit gear meshing with the rotating gear is used for engagement and limiting, thereby avoiding the rotation of the screw due to accidental touch, thereby ensuring the stability of flow control.

[0016] 2. By setting up components such as fan blades, rotating shafts, reciprocating screws, piston plates, liquid inlet pipes and liquid outlet pipes, automatic suction and discharge of chemical liquids are realized, and automatic replenishment of chemical liquids in the liquid storage tank is realized, thereby ensuring the linkage of the device and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a chemical liquid flow control device proposed by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0019] Figure 3 It is a schematic diagram of the structure of the screw rod, lifting plate and other components from a bottom-up perspective;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure at B;

[0021] Figure 5 It is a schematic diagram of the vertical section structure of components such as the pump liquid tank.

[0022] In the figure: 1 pipeline, 2 liquid storage tank, 3 pump liquid box, 4 rotating shaft, 5 liquid inlet pipe, 6 liquid outlet pipe, 7 screw, 8 rotating gear, 9 lifting plate, 10 movable port, 11 limit gear, 12 movable frame, 13 slide rod, 14 spring, 15 fan blade, 16 rotating chamber, 17 pump liquid chamber, 18 reciprocating screw, 19 piston plate, 20 connecting frame. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 A chemical liquid flow control device includes a pipeline 1, a liquid storage tank 2 and a pump liquid box 3. The pipeline 1 is L-shaped, and the inner bottom wall of the liquid storage tank 2 is concave. The above-mentioned design scheme is that the liquid storage tank 2 has a certain height to ensure that the chemical liquid passing through the pipeline 1 has a certain momentum, thereby ensuring that the fan blade 15 can rotate normally.

[0025] A screw rod 7 is rotatably provided on the upper end surface of the pipe 1, a lifting plate 9 is threadedly sleeved on the screw rod 7, a movable opening 10 is provided on the pipe 1, a movable groove is provided on the upper end surface of the pipe 1, a slide rod 13 is provided in the movable groove, a movable frame 12 is slidably sleeved on the slide rod 13 through an elastic mechanism, the elastic mechanism includes a spring 14 sleeved on the outside of the slide rod 13, two ends of the spring 14 are elastically connected to the outer wall of the movable frame 12 and the inner wall of the movable groove respectively, the spring 14 realizes the stability of the position of the movable frame 12, and the initial position of the movable frame 12 drives the limit gear 11 to engage with the rotating gear 8, thereby ensuring that the screw rod 7 cannot rotate.

[0026] The movable frame 12 is connected to the screw rod 7 through a limiting mechanism. The limiting mechanism includes a rotating gear 8 fixedly arranged on the end of the screw rod 7. A limiting gear 11 is fixedly arranged on the upper end surface of the movable frame 12. The rotating gear 8 is meshed with the limiting gear 11. When the limiting gear 11 moves with the movable frame 12 and moves away from the rotating gear 8, the rotating gear 8 loses its restriction, and the rotating gear 8 can drive the screw rod 7 to rotate.

[0027] A fan blade 15 is provided in the pipeline 1, a rotating chamber 16 and a pump liquid chamber 17 are provided in the pump liquid box 3, a reciprocating screw 18 is provided in the rotating chamber 16, and the reciprocating screw 18 is connected to the fan blade 15 through a rotating mechanism. The rotating mechanism includes a rotating shaft 4 which is arranged on the upper end surface of the pipeline 1 and connected to the fan blade 15, and the other end of the rotating shaft 4 is connected to the reciprocating screw 18. When the fan blade 15 is driven to rotate by the chemical liquid in the pipeline 1, the rotating shaft 4 can be driven to rotate, and the rotating shaft 4 can drive the reciprocating screw 18 to rotate synchronously.

[0028] A piston plate 19 is provided in the pump liquid chamber 17, and the piston plate 19 is connected to the reciprocating screw 18 through a reciprocating mechanism. The reciprocating mechanism includes a connecting frame 20 threadedly sleeved on the reciprocating screw 18, and the end of the connecting frame 20 is located in the pump liquid chamber 17 and fixedly connected to the piston plate 19. The connecting frame 20 is U-shaped, and its two ends slide through the inner wall of the rotating chamber 16 and extend into the pump liquid chamber 17. Therefore, it has its own limit and will not rotate with the reciprocating screw 18.

[0029] A liquid inlet pipe 5 and a liquid outlet pipe 6 are installed on the pump liquid box 3. A first valve is provided in the liquid inlet pipe 5, and a second valve is provided in the liquid outlet pipe 6. Both the first valve and the second valve are one-way valves. The first valve and the second valve, which are one-way valves, are used together to realize the one-way flow operation of the chemical liquid, wherein the end of the liquid inlet pipe 5 is in the chemical liquid storage device.

[0030] The piston plate 19 is sealingly and slidably arranged in the pump liquid chamber 17, and the lifting plate 9 is sealingly and slidably arranged in the movable port 10. The above sealing and sliding arrangement is the prior art, and the prior art will not be described in detail here.

[0031] When the utility model is used, the chemical liquid is stored in the chemical liquid storage device. The liquid storage tank 2 has a certain depth of chemical liquid in the initial state. An electric valve is provided in the pipeline 1. After the electric valve is opened, the chemical liquid flows through the pipeline 1. The lifting plate 9 can be raised and lowered to adjust the distance between it and the bottom wall of the pipeline 1. The flow rate can be controlled by changing the size of the distance. Specifically, the screw rod 7 is driven to rotate by the rotating gear 8 to adjust the lifting and lowering of the lifting plate 9. In the initial state, the limit gear 11 is meshed with the rotating gear 8. It is necessary to first move the movable frame 12. The movable frame 12 slides and moves on the slide rod 13 and compresses the spring 14, thereby driving the limit gear 11 to disengage from the rotating gear 8.

[0032] During the flow of the chemical liquid through the pipeline 1, the fan blades 15 will be driven to rotate regardless of the flow rate. The only difference is the rotation speed of the fan blades 15. The rotation of the fan blades 15 can drive the rotating shaft 4 to rotate, and the rotation of the rotating shaft 4 can drive the reciprocating screw 18 to rotate. When the reciprocating screw 18 rotates, the connecting frame 20 installed thereon will drive the piston plate 19 to move back and forth up and down in the pump liquid chamber 17. The descent of the piston plate 19 will cause a negative pressure state in the pump liquid chamber 17. Therefore, at this time, the chemical liquid in the chemical liquid storage device can be sucked in by cooperating with the liquid inlet pipe 5 and the first valve. During the rising process of the piston plate 19, the above-mentioned chemical liquid is squeezed into the liquid storage tank 2 through the second valve and the liquid outlet pipe 6, thereby completing the replenishment operation of the chemical liquid in the liquid storage tank 2.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A chemical liquid flow control device, comprising a pipeline (1), a liquid storage tank (2) and a pump liquid box (3), characterized in that: The upper end surface of the pipe (1) is rotatably provided with a screw rod (7), a lifting plate (9) is threadedly sleeved on the screw rod (7), a movable opening (10) is provided on the pipe (1), a movable groove is provided on the upper end surface of the pipe (1), a sliding rod (13) is provided in the movable groove, a movable frame (12) is slidably sleeved on the sliding rod (13) through an elastic mechanism, the movable frame (12) is connected to the screw rod (7) through a limiting mechanism, and a fan blade is provided in the pipe (1). (15), a rotating chamber (16) and a pumping chamber (17) are provided in the pumping liquid box (3), a reciprocating screw (18) is provided in the rotating chamber (16), and the reciprocating screw (18) is connected to the fan blade (15) through a rotating mechanism, a piston plate (19) is provided in the pumping liquid chamber (17), and the piston plate (19) is connected to the reciprocating screw (18) through a reciprocating mechanism, and a liquid inlet pipe (5) and a liquid outlet pipe (6) are installed on the pumping liquid box (3).

2. A chemical liquid flow control device according to claim 1, characterized in that: The elastic mechanism comprises a spring (14) sleeved on the outside of the slide rod (13), and two ends of the spring (14) are elastically connected to the outer wall of the movable frame (12) and the inner wall of the movable groove respectively.

3. A chemical liquid flow control device according to claim 2, characterized in that: The limiting mechanism comprises a rotating gear (8) fixedly arranged on the end of the screw rod (7), a limiting gear (11) is fixedly arranged on the upper end surface of the movable frame (12), and the rotating gear (8) meshes with the limiting gear (11).

4. A chemical liquid flow control device according to claim 3, characterized in that: The rotating mechanism comprises a rotating shaft (4) arranged on the upper end surface of the pipe (1) and connected to the fan blade (15); the other end of the rotating shaft (4) is connected to a reciprocating screw (18).

5. A chemical liquid flow control device according to claim 4, characterized in that: The reciprocating mechanism comprises a connecting frame (20) threadedly sleeved on a reciprocating screw (18), wherein an end of the connecting frame (20) is located in a pump liquid chamber (17) and is fixedly connected to a piston plate (19).

6. A chemical liquid flow control device according to claim 5, characterized in that: A first valve is provided in the liquid inlet pipe (5), and a second valve is provided in the liquid outlet pipe (6), and both the first valve and the second valve are one-way valves.

7. A chemical liquid flow control device according to claim 6, characterized in that: The piston plate (19) is sealingly and slidably arranged in the pump liquid chamber (17), and the lifting plate (9) is sealingly and slidably arranged in the movable port (10).

8. A chemical liquid flow control device according to claim 7, characterized in that: The pipeline (1) is L-shaped, and the inner bottom wall of the liquid storage tank (2) is concave.

Images