Periodic automatic dosing equipment

Abstract

The utility model discloses periodic automatic dosing equipment which comprises a sliding rail and a dosing box, a tooth groove is formed in the inner side wall of the sliding rail, a gear is connected to the inner side of the tooth groove in a meshed mode, the gear is connected with a first belt wheel through a first rotating shaft, and the first belt wheel is in transmission connection with a second belt wheel through a belt. The middle of the lower surface of the second belt pulley is connected with a push rod through a second rotating shaft, the two ends of the push rod alternately push a push block located on the lower portion of the medicine adding box in the rotating process, a plurality of medicine outlets are formed in the front end of the push block, and when the push block is pushed backwards, the medicine outlets communicate with a plurality of medicine discharging openings formed in the bottom of the medicine adding box in a one-to-one correspondence mode. The automatic dosing device is carried above the sewage treatment tank, can realize automatic reciprocating motion and automatic dosing, realizes intermittent spraying of chemicals through a series of mechanical transmission in the moving process of the dosing box, can keep uniform dosing amount at each position of the sewage treatment tank, improves the sewage treatment effect, has an automatic dosing function, and is convenient to use. Practicability is high, and popularization is convenient.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a periodic automatic dosing device. Background Technology

[0002] Wastewater that is not treated promptly and properly can cause great harm. This necessitates more advanced or automated wastewater treatment equipment.

[0003] Wastewater treatment often requires the addition of various chemicals, and the dosage ratio varies depending on the type of chemical and the treatment requirements. For highly acidic wastewater, lime is usually added to make an emulsion; for wastewater with a large amount of suspended solids and colloidal substances that have coagulated into larger particles, flocculants are usually added; for wastewater with high CODcr content, oxidants are usually added; and for wastewater with a high concentration of viruses, bacteria, and other microorganisms, disinfectants are usually added.

[0004] Commercially available dosing devices are usually located in fixed positions, and therefore the dosing ports are also relatively fixed. For different types of chemicals, it is often necessary to adjust the position of the dosing port or use multiple dosing ports. Automatic dosing equipment that can adjust the dosing position and continuously dosing is still relatively rare.

[0005] For example, patent publication number CN115611335A provides an automatic dosing system for wastewater treatment. A motor is bolted to the upper center of the wastewater treatment tank. A stirring shaft is fixedly connected to the lower end of the motor's output shaft, located inside the wastewater treatment tank. Stirring blades are fixedly connected to the outer wall of the stirring shaft. With multiple dosing chambers, operators pre-add various wastewater treatment agents to each chamber through dosing ports. When adding the corresponding agent, the control box opens the electromagnetic control valve on the corresponding dosing chamber, allowing the agent to enter the tank through the dosing pipe and be metered by a flow meter. Once the set value is reached, the control box closes the electromagnetic control valve, achieving automatic dosing. This system is convenient to operate and allows for easy control of the agent dosage. However, this product still has drawbacks, including a relatively fixed operating location and a limited number of dosing ports. Utility Model Content

[0006] To address the aforementioned problems, this utility model provides a periodic automatic dosing device.

[0007] The technical solution of this utility model is:

[0008] A periodic automatic dosing device includes slide rails mounted on both sides of a sewage tank and a dosing box slidably connected to the slide rails. One of the slide rails has a toothed groove on its inner side wall, and a gear is meshed inside the toothed groove. A first pulley is connected to the center of the upper surface of the gear via a first rotating shaft. The first pulley is connected to a second pulley via a belt drive. The second pulley is located at the center of the front side of the dosing box. A push rod is connected to the center of the lower surface of the second pulley via a second rotating shaft. During rotation, the two ends of the push rod alternately push a push block located at the bottom of the dosing box. The front end of the push block has several dispensing ports. When the push block moves backward, the dispensing ports correspond one-to-one with several dispensing ports located at the bottom of the dosing box.

[0009] Furthermore, each side of the dosing box is provided with a roller, and the inner side wall of the roller is provided with a drive shaft. A drive motor is provided on one side inside the dosing box. The output end of the drive motor passes through the dosing box and is connected to the drive shaft of one of the rollers. The drive shaft of the other roller is rotatably connected to the side wall of the dosing box.

[0010] Explanation: The dosing box is driven to slide by a servo motor, which enables the dosing box to slide back and forth on the slide rail.

[0011] Furthermore, a first fixing rod is provided at the front end of the dosing box on the side corresponding to the first pulley. The end of the first fixing rod is rotatably connected to the middle of the first rotating shaft. A limiting ring provided in the middle of the first rotating shaft is rotatably connected to a limiting groove provided inside the end of the first fixing rod.

[0012] Explanation: The first fixing rod maintains the stability of the gears and belt.

[0013] Furthermore, a second fixing rod is provided at the upper part of the front end of the dosing box, and the end of the second fixing rod is rotatably connected to the middle part of the upper surface of the second pulley.

[0014] Explanation: The second fixing rod maintains the stability of the belt and the steady rotation of the push rod.

[0015] Furthermore, the middle part of the push rod is connected to the bottom of the second rotating shaft, and both ends of the push rod are arc-shaped.

[0016] Explanation: The pusher is used to continuously and intermittently push the push block.

[0017] Furthermore, the pusher slides inside a groove at the bottom of the dosing box, and a return spring is provided at the center of the rear end of the pusher, the return spring being connected to the inner wall of the rear end of the groove.

[0018] Note: The pusher is reset after being pushed by a return spring.

[0019] Furthermore, there are 3 to 5 symmetrical dispensing ports on each side of the push block, and a T-shaped block is provided at the bottom front side of the dosing box. The T-shaped block is slidably engaged with the T-shaped groove provided at the center of the push block.

[0020] Explanation: The T-block and T-slot maintain the stability of the pusher during sliding and ensure a seal between it and the dispensing port.

[0021] Furthermore, the top of the dosing box is provided with a dosing inlet, and a replenishment tank is provided at the rear end of the sewage tank. The bottom front end of the replenishment tank is provided with a replenishment port. The replenishment port is controlled to open and close by a control valve. The control valve is electrically connected to an infrared sensor provided at the bottom of the replenishment tank. When the infrared sensor senses the dosing box, the replenishment port aligns with the dosing inlet and opens.

[0022] Note: The infrared sensor enables automatic replenishment of medication to the dosing box.

[0023] The beneficial effects of this utility model are:

[0024] This utility model discloses a periodic automatic dosing device mounted above a sewage treatment tank. It can achieve automatic reciprocating motion and automatic dosing. During the movement of the dosing box, a series of mechanical transmissions are used to achieve intermittent spraying of the agent, which can maintain a uniform dosing amount at all positions in the sewage treatment tank, improve the sewage treatment effect, and has an automatic replenishment function. It is highly practical and easy to promote. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a periodic automatic dosing device according to this utility model;

[0026] Figure 2 This is a schematic diagram of the bottom structure of a periodic automatic dosing device according to this utility model;

[0027] Figure 3 This is a top view of a periodic automatic dosing device according to this utility model;

[0028] Figure 4 This is a bottom view of a periodic automatic dosing device according to this utility model;

[0029] Figure 5 This is a cross-sectional view of the first rotating shaft of a periodic automatic dosing device according to this utility model;

[0030] Figure 6 This is a schematic diagram of the connection between the push block and the dosing box of a periodic automatic dosing device according to this utility model;

[0031] Figure 7 This is a schematic diagram of the replenishment tank structure of a periodic automatic dosing device according to this utility model.

[0032] Among them, 1-slide rail, 11-tooth groove, 2-dosing box, 21-dosing port, 22-roller, 23-drive shaft, 24-drive motor, 25-first fixed rod, 26-limiting groove, 27-second fixed rod, 28-slide groove, 29-dosing port, 3-gear, 31-first rotating shaft, 32-limiting ring, 4-belt, 41-first pulley, 42-second pulley, 43-second rotating shaft, 44-push rod, 5-push block, 51-dosing port, 52-reset spring, 53-T-slot, 6-replenishment tank, 61-replenishment port, 62-control valve, 63-infrared sensor, 7-T-block. Detailed Implementation

[0033] Example 1

[0034] like Figure 1 and Figure 3 As shown, a periodic automatic dosing device includes a slide rail 1 installed on both sides of a sewage tank, a dosing box 2 slidably connected to the slide rail 1, a roller 22 on each side of the dosing box 2, a drive shaft 23 in the middle of the inner side wall of the roller 22, a drive motor 24 inside the dosing box 2 on one side, the drive motor 24 is a commercially available servo motor, the output end of the drive motor 24 passes through the dosing box 2 and is connected to the drive shaft 23 of one of the rollers 22, and the drive shaft 23 of the other roller 22 is rotatably connected to the side wall of the dosing box 2;

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, one of the slide rails 1 has a toothed groove 11 on its inner side wall. A gear 3 is meshed with the inner side of the toothed groove 11. A first pulley 41 is connected to the middle of the upper surface of the gear 3 through a first rotating shaft 31. The first pulley 41 is connected to a second pulley 42 through a belt 4. The second pulley 42 is located in the middle of the front side of the dosing box 2. A first fixing rod 25 is provided on the front side of the dosing box 2 on the side where the first pulley 41 is located. The end of the first fixing rod 25 is rotatably connected to the middle of the first rotating shaft 31. A limiting ring 32 provided in the middle of the first rotating shaft 31 is rotatably connected to a limiting groove 26 provided inside the end of the first fixing rod 25. A second fixing rod 27 is provided in the upper middle part of the front side of the dosing box 2. The end of the second fixing rod 27 is rotatably connected to the middle of the upper surface of the second pulley 42.

[0036] like Figure 3 , Figure 4 and Figure 6As shown, a push rod 44 is connected to the middle of the lower surface of the second pulley 42 via a second rotating shaft 43. The middle of the push rod 44 is connected to the bottom of the second rotating shaft 43. The two ends of the push rod 44 are arc-shaped. During rotation, the two ends of the push rod 44 alternately push the push block 5 located at the bottom of the dosing box 2. The front end of the push block 5 has three symmetrical medicine outlets 51 on each side. When the push block 5 is pushed backward, the medicine outlets 51 are connected to the medicine inlet 21 at the bottom of the dosing box 2. The push block 5 slides inside the sliding groove 28 at the bottom of the dosing box 2. A return spring 52 is provided at the center of the rear end of the push block 5. The return spring 52 is connected to the inner wall of the rear end of the sliding groove 28. A T-shaped block 7 is provided at the bottom front side of the dosing box 2. The T-shaped block 7 is slidably engaged with the T-shaped groove 53 at the center of the push block 5.

[0037] like Figure 1 and Figure 7 As shown, the dosing box 2 has a dosing inlet 29 at its top, and a replenishment tank 6 is located at the rear end of the sewage tank. The replenishment tank 6 has a replenishment port 61 at its bottom front end. The replenishment port 61 is controlled to open and close by a control valve 62. The control valve 62 is electrically connected to an infrared sensor 63 located at the bottom of the replenishment tank 6. When the infrared sensor 63 detects the dosing box 2, the replenishment port 61 aligns with the dosing inlet 29 and opens. The infrared sensor 63 is a commercially available infrared sensor, and the control valve 62 is a commercially available solenoid valve. The replenishment tank 6 is fixedly connected to an external wall or the ground.

[0038] Example 2

[0039] The difference between this embodiment and Embodiment 1 is that:

[0040] The front end of the pusher block 5 has four medicine outlets 51 symmetrically arranged on both sides.

[0041] Example 3

[0042] The difference between this embodiment and Embodiment 1 is that:

[0043] The front end of the pusher block 5 has 5 medicine outlets 51 symmetrically arranged on both sides of the pusher block 5.

[0044] Note: The size of the outlet 51 in Examples 1-3 can be reasonably selected according to the amount of reagent added and the scale of the sewage treatment pond.

[0045] Working principle:

[0046] The working principle of a periodic automatic dosing device according to this utility model will be briefly explained below.

[0047] In use, first add the medicine into the dosing box 2, then turn on the drive motor 24 to drive the transmission shaft 23 and roller 22 to rotate, so that the dosing box 2 slides along the slide rail 1. At the same time, the gear rolls and meshes along the tooth groove 11, which drives the first pulley 41 to rotate. The belt 4 drives the second pulley 42 to rotate. The limiting ring 32 rotates in the limiting groove 26 to keep the belt 4 stable. At the same time, the second rotating shaft 43 drives the push rod 44 to rotate. The two ends of the push rod 44 alternately push the push block 5 to slide along the slide groove 28. The T-block 7 slides in the T-groove 53 to keep the push block 5 stable.

[0048] Each time the pusher block 5 slides along the slide groove 28 once, the medicine inlet 21 and the medicine outlet 51 overlap once, causing the medicine inside the medicine box 2 to flow out. Then, under the action of the return spring 52, the pusher block 5 returns to its original position, keeping the medicine inlet 21 sealed, thus realizing continuous and uninterrupted medicine dispensing with the reciprocating motion of the medicine box 2.

[0049] When medication needs to be replenished, the medication box 2 is moved below the medication tank 6. The infrared sensor 63 senses the signal and opens the medication port 61 through the control valve 62 to replenish the medication box 2.

Claims

1. A periodic automatic dosing device, characterized in that, The system includes slide rails (1) mounted on both sides of the sewage tank, and a dosing box (2) slidably connected to the slide rails (1). One of the slide rails (1) has a toothed groove (11) on its inner wall. A gear (3) is meshed inside the toothed groove (11). A first pulley (41) is connected to the center of the upper surface of the gear (3) via a first rotating shaft (31). The first pulley (41) is connected to a second pulley (42) via a belt (4). Located in the middle of the front side of the dosing box (2), the middle of the lower surface of the second pulley (42) is connected to a push rod (44) through the second rotating shaft (43). During the rotation, the two ends of the push rod (44) alternately push the push block (5) located at the bottom of the dosing box (2). The front end of the push block (5) is provided with several medicine outlets (51). When the push block (5) is pushed backward, the medicine outlets (51) are connected to several medicine inlets (21) at the bottom of the dosing box (2).

2. The periodic automatic dosing device according to claim 1, characterized in that, Each side of the dosing box (2) is provided with a roller (22). The inner side wall of the roller (22) is provided with a drive shaft (23). The dosing box (2) is provided with a drive motor (24) on one side. The output end of the drive motor (24) passes through the dosing box (2) and is connected to the drive shaft (23) of one of the rollers (22). The drive shaft (23) of the other roller (22) is rotatably connected to the side wall of the dosing box (2).

3. The periodic automatic dosing device according to claim 1, characterized in that, The front end of the dosing box (2) is provided with a first fixing rod (25) on the side where the first pulley (41) is located. The end of the first fixing rod (25) is rotatably connected to the middle of the first rotating shaft (31). The limiting ring (32) provided in the middle of the first rotating shaft (31) is rotatably connected to the limiting groove (26) provided inside the end of the first fixing rod (25).

4. The periodic automatic dosing device according to claim 1, characterized in that, The dosing box (2) has a second fixing rod (27) at the upper middle part of the front end, and the end of the second fixing rod (27) is rotatably connected to the middle part of the upper surface of the second pulley (42).

5. The periodic automatic dosing device according to claim 1, characterized in that, The middle part of the push rod (44) is connected to the bottom of the second rotating shaft (43), and both ends of the push rod (44) are arc-shaped.

6. The periodic automatic dosing device according to claim 1, characterized in that, The push block (5) slides inside the groove (28) at the bottom of the dosing box (2). A return spring (52) is provided at the center of the rear end of the push block (5), and the return spring (52) is connected to the inner wall of the rear end of the groove (28).

7. The periodic automatic dosing device according to claim 1, characterized in that, The medicine outlet (51) is symmetrically provided with 3 to 5 outlets on both sides of the push block (5). The bottom front side of the medicine box (2) is provided with a T-shaped block (7). The T-shaped block (7) is slidably engaged with the T-shaped groove (53) provided at the center of the push block (5).

8. The periodic automatic dosing device according to claim 1, characterized in that, The dosing box (2) has a dosing inlet (29) at the top and a replenishment tank (6) at the rear end of the sewage tank. The replenishment tank (6) has a replenishment port (61) at the front end of the bottom. The replenishment port (61) is controlled to open and close by a control valve (62). The control valve (62) is electrically connected to an infrared sensor (63) at the bottom of the replenishment tank (6). When the infrared sensor (63) senses the dosing box (2), the replenishment port (61) aligns with the dosing inlet (29) and opens.

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