Chemical dosing device for sewage treatment

Abstract

The invention provides a chemical dosing device for sewage treatment, and relates to the technical field of chemical dosing devices. An internal control part is arranged in the connecting part; an external control part is arranged outside the connecting part; a medicine feeding part is arranged at the bottom of the connecting part; the floating ball is pulled to be in direct contact with sewage, the sewage impact change can be sensed in real time, and when the sewage flow is increased and the impact is enhanced, the liquid medicine feeding amount is automatically increased; when the sewage flow is reduced and the impulsive force is weakened, the dosage is reduced; if sewage conveying is stopped, the internal adjusting plug block completely blocks a channel, dosing is stopped, it is ensured that the medicine liquid and sewage are always kept in the optimal proportion, the medicine liquid is mixed through flowing of the sewage, and the problems that due to the fact that the volume of the sewage pool is large and a flow field dead angle exists, the medicine liquid fed at a single point is difficult to diffuse into the whole sewage pool in a short time, and the sewage pool cannot be polluted are solved. Therefore, the sewage treatment effect shows obvious spatial difference, and the uniform purification of the water quality in the whole pool cannot be realized.

Description

Technical Field

[0001] This invention relates to the field of dosing device technology, and in particular to a dosing device for wastewater treatment. Background Technology

[0002] Driven by the dual demands of water resource recycling and water pollution control, wastewater treatment has become a core link in ensuring ecological environment and social development. As a key supporting technology in wastewater treatment processes, chemical dosing directly determines the water purification effect, treatment cost, and operational stability. Wastewater treatment refers to the process of transporting wastewater to a wastewater treatment pond and purifying it through various processes and the mixing of chemicals, so that the wastewater meets the water quality requirements for discharge into a certain water body or reuse. However, early devices mostly relied on manual experience to judge the dosage of chemicals and lacked the ability to dynamically respond to water quality parameters. When treating wastewater, in order to facilitate the purification of wastewater, it is usually necessary to mix chemicals into the wastewater, thus requiring a chemical dosing device.

[0003] Currently, traditional wastewater treatment dosing devices are usually installed in wastewater tanks, and most of them use single-point dosing combined with mixing equipment to fully mix the chemical solution with the wastewater. Due to the large volume of the wastewater tank and the existence of dead zones in the flow field, the chemical solution added at a single point is difficult to spread throughout the entire wastewater tank in a short time. It is easy to form a high concentration of chemical agent around the dosing point, while the concentration of chemical agent is insufficient in areas far from the dosing point. This results in obvious spatial differences in wastewater treatment effect and makes it impossible to achieve uniform purification of water quality throughout the tank. Summary of the Invention

[0004] This invention relates to a dosing device for wastewater treatment, comprising an external control unit and an internal control unit. A traction float directly contacts the wastewater and can sense changes in the wastewater's flow force in real time. When the wastewater flow rate increases and the flow force strengthens, the dosing amount of chemical solution is automatically increased; when the wastewater flow rate decreases and the flow force weakens, the dosing amount of chemical solution is reduced. If the wastewater is stopped, the internal regulating plug completely blocks the channel, stopping the dosing and ensuring that the chemical solution and wastewater always maintain the optimal ratio. By dosing the chemical solution during wastewater transportation, the flow of wastewater mixes the chemical solution with the wastewater, ensuring that the wastewater is mixed with the chemical solution before entering the wastewater tank, preventing differences in the wastewater tank, and achieving uniform purification of the water quality throughout the tank.

[0005] This invention provides a dosing device for wastewater treatment, specifically comprising: a connecting part; the connecting part including a central connecting cylinder block; a bottom connector fixedly connected to the bottom of the central connecting cylinder block; a fixed side frame fixedly connected to the outer wall of the central connecting cylinder block; an internal control part provided inside the connecting part; the internal control part including a docking side cylinder; the docking side cylinder fixedly connected to the central connecting cylinder block; a connecting side head connected to the docking side cylinder via a threaded groove; a traction rod slidably connected within the shaft hole of the connecting side head; a connecting frame threadedly connected to the traction rod via a threaded rod; and a connecting frame fixedly connected to a disc-shaped structure. An inner adjusting plug; a gap groove is formed on the outer wall of the inner adjusting plug; a buffer spring is provided on the cylindrical rod of the inner adjusting plug; an external control part is provided outside the connecting part; the external control part includes a bottom support block; a traction frame is rotatably connected to the bottom support block through a shaft groove; an outward flipping rod is rotatably connected to the bottom of the fixed side frame through a shaft hole; a traction float is fixedly connected to the end of the outward flipping rod; a drug delivery part is provided at the bottom of the connecting part; the drug delivery part includes a connecting sleeve block; a drug dispensing bottom block is rotatably connected to the bottom of the connecting sleeve block; a drug delivery tube is fixedly connected to the outer wall of the drug dispensing bottom block.

[0006] Preferably, the interior of the intermediate connecting cylinder is configured as a cavity structure, a circular shaft hole is provided at the end of the intermediate connecting cylinder, a flange is provided on the outer wall of the intermediate connecting cylinder, and a threaded groove is formed on the outer wall of the intermediate connecting cylinder; an external connector is fixedly connected to the top of the intermediate connecting cylinder; the external connector is connected to the interior of the intermediate connecting cylinder through a circular hole; the outer wall of the bottom connector is threaded, and the bottom connector is connected to the interior of the intermediate connecting cylinder through a circular hole.

[0007] Preferably, the bottom of the fixed side frame is provided with a shaft hole; an outer fixed cylinder frame is fixedly connected to the outside of the middle connecting cylinder block; two sets of fixed brackets are fixedly connected to the outer wall of the outer fixed cylinder frame; two sets of stable base frames are fixedly connected to the outer wall of the outer fixed cylinder frame; and circular through holes are respectively opened on the two sets of stable base frames.

[0008] Preferably, the docking side cylinder has a hollow structure inside, and the docking side cylinder is connected to the hollow structure of the middle connecting cylinder block. A threaded groove is provided at the end of the docking side cylinder. A rectangular block structure for cooperating with external tools is provided on the outer wall of the connecting side head, and a shaft hole is provided at the center of the connecting side head. A threaded rod is fixedly connected to the end of the traction rod, and a shaft groove is provided at the other end of the traction rod.

[0009] Preferably, a disc-shaped structure is fixedly connected to the end of the connecting frame; the inner adjusting plug is slidably connected inside the middle connecting cylinder block, and the inner adjusting plug can block the outer connector and the bottom connector; a cylindrical rod for slidably connecting inside the circular shaft hole of the middle connecting cylinder block is fixedly connected to the end of the inner adjusting plug; the gap groove and the bottom connector are on the same side.

[0010] Preferably, the bottom support block is threaded into the threaded groove of the middle support block; the bottom support block is provided with a shaft groove; the traction frame is provided with a shaft groove; and the end of the traction plate is rotatably connected to the shaft groove of the traction rod.

[0011] Preferably, the traction frame is rotatably connected to the traction plate via a shaft groove; a synchronous connecting frame is rotatably connected between the outward-folding rod and the other end of the traction plate.

[0012] Preferably, the connecting sleeve is threaded onto the bottom connector, and the outer wall of the connecting sleeve is provided with a hexagonal prism-shaped protrusion for cooperating with external tools; the inside of the dispensing bottom block is provided with a dispensing groove, and the dispensing groove of the dispensing bottom block is connected to the bottom connector.

[0013] Preferably, the inside of the delivery tube is connected to the dispensing groove of the delivery tube; the delivery tube is inserted into the corresponding stable base; and a dispensing head is fixed to the outer wall of the delivery tube.

[0014] The wastewater treatment dosing device provided by this invention has the following beneficial effects: In this invention, the traction float is in direct contact with the sewage and can sense changes in the sewage's force in real time. When the sewage flow increases and the force intensifies, the traction float drives the outward-turning rod to rotate. Through the synchronous connecting frame and traction plate, the traction rod is pulled, causing the inner regulating block to move and open the communication channel between the outer connector and the bottom connector, automatically increasing the dosage of the chemical solution. When the sewage flow decreases and the force intensifies, the buffer spring quickly pushes the inner regulating block to reset, reducing the channel opening and decreasing the dosage. If the sewage is stopped being transported, the inner regulating block completely blocks the channel, stopping the dosage and ensuring that the chemical solution and sewage always maintain the optimal ratio.

[0015] In addition, during the chemical delivery process, the gap groove can help drain the residual chemical solution inside the intermediate cylinder block, preventing the chemical solution from stagnating and deteriorating in the cavity, ensuring that the chemical solution added each time is fresh and effective, and avoiding the impact of chemical solution deterioration on the sewage treatment effect; at the same time, when the sewage delivery stops and the internal adjustment plug is reset to block the channel, the gap groove can still continue to drain the residual chemical solution, thoroughly emptying the chemical solution inside the device, preventing the residual chemical solution from corroding the intermediate cylinder block, bottom connector and other components, extending the overall service life of the equipment, and reducing equipment failures caused by chemical solution stagnation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0018] In the attached diagram: Figure 1A schematic diagram of a three-dimensional assembly structure according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the three-dimensional assembly bottom view structure according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the exploded structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the exploded bottom view structure according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of a partially cut-out structure according to an embodiment of the present invention is shown; Figure 6 The invention illustrates an embodiment of the invention by Figure 5 A schematic diagram of the enlarged structure of section A; Figure 7 The invention illustrates an embodiment of the invention by Figure 5 A schematic diagram of the enlarged structure of section B is shown. Figure 8 A schematic diagram of the connection assembly structure according to an embodiment of the present invention is shown; Figure 9 A schematic diagram of the internal control unit assembly structure according to an embodiment of the present invention is shown; Figure 10 A schematic diagram of the external control unit assembly structure according to an embodiment of the present invention is shown; Figure 11 A schematic diagram of the drug delivery unit assembly structure according to an embodiment of the present invention is shown.

[0019] List of reference numerals 1. Connecting part; 101. Middle connecting cylinder block; 102. External connector; 103. Bottom connector; 104. Fixed side frame; 105. External fixed cylinder frame; 106. Fixed bracket; 107. Stabilizing base frame; 2. Internal control unit; 201. Docking side cylinder; 202. Connecting side head; 203. Traction rod; 204. Connecting frame; 205. Internal adjustment plug; 206. Gap groove; 207. Buffer spring; 3. External control unit; 301. Bottom support block; 302. Traction frame; 303. Traction plate; 304. Outward tilting rod; 305. Synchronous connecting frame; 306. Traction float; 4. Dosing section; 401. Connecting sleeve; 402. Dosing base block; 403. Dosing tube; 404. Dosing head. Detailed Implementation

[0020] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0021] Example 1: Please refer to Figures 1 to 11This invention proposes a dosing device for wastewater treatment, comprising: a connecting part 1; the connecting part 1 includes a central connecting cylinder block 101; the central connecting cylinder block 101 is used to assist in the installation and fixation of other structures of the device, so as to facilitate the overall stability of the device and the transportation of the chemical solution; a bottom connector 103 is fixedly connected to the bottom of the central connecting cylinder block 101; a fixed side frame 104 is fixedly connected to the outer wall of the central connecting cylinder block 101; the fixed side frame 104 is used to assist in the installation of the outward-turning rod 304, so as to facilitate its rotational adjustment; an internal control part 2 is provided inside the connecting part 1; the internal control part 2 includes a docking side cylinder 201; the docking side cylinder 201 is fixedly connected to the central connecting cylinder block 101; the docking side cylinder 201 is used to assist in the sealing treatment of the central connecting cylinder block 101, so as to keep the internal adjustment plug 205 in place. The stability during the adjustment process facilitates the dosing of chemicals into the wastewater. The connecting side cylinder 201 is connected to the connecting side head 202 via a threaded groove. The connecting side head 202 assists in constraining the traction rod 203 to maintain its stability during the telescopic adjustment process, facilitating the adjustment of the inner adjusting block 205 by the connecting frame 204. The traction rod 203 is slidably connected within the shaft hole of the connecting side head 202. The traction rod 203 is used for telescopic adjustment under the action of the traction plate 303, facilitating the adjustment of the inner adjusting block 205 by the connecting frame 204, thus facilitating the dosing of chemicals into the wastewater. The traction rod 203 is threadedly connected to the connecting frame 204 via a threaded rod. The connecting frame 204 is used for position adjustment under the action of the traction rod 203, facilitating... The internal adjustment plug 205 is adjusted to facilitate the dosing of chemicals into the wastewater. The connecting frame 204 is fixed to the internal adjustment plug 205 via a disc-shaped structure. The internal adjustment plug 205 is used to adjust its position under the action of the traction rod 203 and the connecting frame 204 to assist in blocking and connecting the bottom connector 103 and the outer connector 102, facilitating the delivery of the chemical solution for chemical dosing. A gap groove 206 is provided on the outer wall of the internal adjustment plug 205. The gap groove 206 is used to assist in the outward discharge of the chemical solution entering the middle connecting cylinder block 101 to avoid the retention of chemical solution inside the middle connecting cylinder block 101. A buffer spring 207 is provided on the cylindrical rod of the internal adjustment plug 205. The buffer spring 207 is used to assist in the buffering of the internal adjustment plug 205. The flushing process allows the traction float 306 to escape the flushing force of the sewage while controlling the internal adjustment plug 205 to quickly reset, thus preventing excessive dispersion of the medicine. An external control unit 3 is provided outside the connecting part 1. The external control unit 3 includes a bottom support block 301. The bottom support block 301 assists in the installation of the traction frame 302, facilitating its adjustment. The bottom support block 301 is rotatably connected to the traction frame 302 via a shaft groove. The traction frame 302 helps maintain the stability of the traction plate 303 during adjustment. An outward-turning rod 304 is rotatably connected to the bottom of the fixed side frame 104 via a shaft hole. The outward-turning rod 304 assists in fixing the traction float 306, facilitating the control of the internal adjustment plug 205 by the traction plate 303 and the synchronous connecting frame 305 under the action of sewage.A traction float 306 is fixedly connected to the end of the outward-turning rod 304. The traction float 306 is used to contact the sewage in the conveying channel, facilitating the adjustment of the internal regulating block 205 under the action of sewage force, so as to facilitate precise control of the drug dosage. A dosing part 4 is provided at the bottom of the connecting part 1. The dosing part 4 includes a connecting sleeve 401. The connecting sleeve 401 is used to assist in connecting the distributing bottom block 402, so as to facilitate its connection with the bottom connector 103 and facilitate the delivery of the drug. The bottom of the connecting sleeve 401 is rotatably connected to the distributing bottom block 402. The distributing bottom block 402 is used to assist in dispersing the drug, so that it flows into the delivery pipes 403 at different positions. The delivery pipe 403 is fixedly connected to the outer wall of the distributing bottom block 402. The delivery pipe 403 is used to cooperate with the dosing head 404 to dosing the drug, so as to facilitate the addition of the drug to the sewage.

[0022] Example 2: Based on Example 1, as follows Figures 1 to 11 As shown, the interior of the intermediate connecting cylinder block 101 is a hollow structure. A circular shaft hole is provided at the end of the intermediate connecting cylinder block 101. A flange is provided on the outer wall of the intermediate connecting cylinder block 101, and a threaded groove is formed on the outer wall. An external connector 102 is fixedly connected to the top of the intermediate connecting cylinder block 101. The external connector 102 is connected to the interior of the intermediate connecting cylinder block 101 through a circular hole. The external connector 102 is used to assist in connecting the device to an external mixing device to facilitate the delivery of the liquid medicine. The outer wall of the bottom connector 103 is threaded, and the bottom connector 103 is connected to the interior of the intermediate connecting cylinder block 101 through a circular hole. The bottom connector 103 is used to cooperate with the connecting sleeve block 401 to assist in the delivery of the intermediate connecting cylinder block 101 and the dispensing bottom block 402, facilitating the delivery of the liquid medicine.

[0023] The bottom of the fixed side frame 104 is provided with a shaft hole; an outer fixed cylinder frame 105 is fixedly connected to the outside of the middle connecting cylinder block 101; the outer fixed cylinder frame 105 is used to cooperate with the fixed bracket 106 to assist in the overall fixation of the device, so as to facilitate the fixation of the device in the sewage conveying channel; two sets of fixed brackets 106 are fixedly connected to the outer wall of the outer fixed cylinder frame 105; the fixed brackets 106 are used to fix the entire device to the inner wall of the sewage conveying channel, so as to facilitate the overall stability of the device and facilitate the dosing treatment into the sewage; two sets of stabilizing base frames 107 are fixedly connected to the outer wall of the outer fixed cylinder frame 105; each of the two sets of stabilizing base frames 107 is provided with a circular through hole; the stabilizing base frame 107 is used to assist in constraining the drug delivery pipe 403, so as to facilitate its stability during the drug delivery process.

[0024] The docking side cylinder 201 has a hollow structure inside, and the docking side cylinder 201 is connected to the hollow structure of the middle connecting cylinder block 101. A threaded groove is opened at the end of the docking side cylinder 201. The outer wall of the connecting side head 202 has a rectangular block structure for cooperating with external tools, and a shaft hole is opened at the center of the connecting side head 202. A threaded rod is fixed at the end of the traction rod 203, and a shaft groove is provided at the other end of the traction rod 203.

[0025] A disc-shaped structure is fixedly connected to the end of the connecting frame 204; the inner adjusting plug 205 is slidably connected inside the middle connecting cylinder block 101, and the inner adjusting plug 205 can block the outer connector 102 and the bottom connector 103; a cylindrical rod is fixedly connected to the end of the inner adjusting plug 205 for sliding connection in the circular shaft hole of the middle connecting cylinder block 101; the gap groove 206 is on the same side as the bottom connector 103.

[0026] The bottom support block 301 is threaded into the threaded groove of the middle support block 101; the bottom support block 301 is provided with a shaft groove; the traction frame 302 is provided with a shaft groove; the end position of the traction plate 303 is rotatably connected to the shaft groove of the traction rod 203.

[0027] The traction frame 302 is rotatably connected to the traction plate 303 via a shaft groove; the traction plate 303 is used to assist the synchronous connecting frame 305 in connecting the outward flipping rod 304 and the traction rod 203, so as to facilitate the linkage adjustment between the two and facilitate the control of the inner adjusting block 205; the synchronous connecting frame 305 is rotatably connected between the other end of the outward flipping rod 304 and the traction plate 303; the synchronous connecting frame 305 is used to assist the traction plate 303 in connecting the outward flipping rod 304 and the traction rod 203, so as to facilitate the linkage adjustment between the two and facilitate the control of the inner adjusting block 205.

[0028] The connecting sleeve 401 is threaded onto the bottom connector 103. The outer wall of the connecting sleeve 401 is provided with a hexagonal prism protrusion for cooperating with external tools. The dispensing bottom block 402 is provided with a dispensing groove inside. The dispensing groove of the dispensing bottom block 402 is connected to the bottom connector 103.

[0029] The inside of the drug delivery pipe 403 is connected to the drug distribution tank of the drug delivery pipe 403; the drug delivery pipe 403 is inserted into the corresponding stable base 107; a dosing head 404 is fixedly connected to the outer wall of the drug delivery pipe 403; the dosing head 404 is used to cooperate with the drug delivery pipe 403 to dosing the drug solution, so as to facilitate the addition of the drug solution to the sewage.

[0030] The specific usage and function of this embodiment: In this invention, the entire device is installed at a designated location in a sewage conveying channel, and the external connector 102 is connected to an external medicine delivery pipeline. Under the action of the pipeline and the external connector 102, the medicine is delivered to the interior of the external connector 102. When sewage flows through the channel, the traction float 306 is driven by the sewage force to rotate the outward flipping rod 304. Through the synchronous connecting frame 305, the traction plate 303 is pulled. The traction plate 303 drives the traction rod 203 to slide away from the middle connecting cylinder block 101. The inner adjusting plug 205 moves with the connecting frame 204. The external connector 102 is connected to the bottom connector 103. The medicine passes through the cavity and gap groove of the middle connecting cylinder block 101. 206 flows into the bottom connector 103, and then is distributed to each delivery pipe 403 through the distribution groove of the distribution block 402. Finally, it is evenly added into the sewage from the dosing head 404, so that the dosing treatment is carried out at all times during the sewage flow. When the sewage stops being transported, the water flow in the channel gradually stops. Under the action of no impact, the traction float 306 drives the inner adjusting block 205 to completely block the outer connector 102 and the bottom connector 103 with the reset of the buffer spring 207, ensuring no leakage of medicine. During the reset and blocking process, the medicine inside the inner adjusting block 205 continues to be discharged through the gap groove 206, so as to facilitate the complete discharge of the medicine inside the middle connecting cylinder block 101 and avoid the internal medicine retention.

[0031] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0032] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0033] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A dosing device for wastewater treatment, comprising: Connecting part (1); characterized in that the connecting part (1) includes a central connecting cylinder block (101); a bottom connector (103) is fixedly connected to the bottom of the central connecting cylinder block (101); a fixed side frame (104) is fixedly connected to the outer wall of the central connecting cylinder block (101); an internal control part (2) is provided inside the connecting part (1); the internal control part (2) includes a docking side cylinder (201); the docking side cylinder (201) is fixedly connected to the central connecting cylinder block (101); the docking side cylinder (201) is connected to a connecting side head (202) through a threaded groove; a traction rod (203) is slidably connected in the shaft hole of the connecting side head (202); the traction rod (203) is threadedly connected to a connecting frame (204) through a threaded rod; the connecting frame (204) is fixedly connected to an internal adjusting plug (205) through a disc-shaped structure; the internal adjusting plug A gap groove (206) is provided on the outer wall of the block (205); a buffer spring (207) is provided on the cylindrical rod of the inner adjusting plug block (205); an external control part (3) is provided on the outside of the connecting part (1); the external control part (3) includes a bottom support block (301); the bottom support block (301) is rotatably connected to a traction frame (302) through a shaft groove; the bottom of the fixed side frame (104) is rotatably connected to an outward flipping rod (304) through a shaft hole; a traction float (306) is fixedly connected to the end of the outward flipping rod (304); a drug delivery part (4) is provided at the bottom of the connecting part (1); the drug delivery part (4) includes a connecting sleeve block (401); a drug dispensing bottom block (402) is rotatably connected to the bottom of the connecting sleeve block (401); a drug delivery tube (403) is fixedly connected to the outer wall of the drug dispensing bottom block (402).

2. The dosing device for wastewater treatment according to claim 1, characterized in that: The interior of the intermediate connecting cylinder block (101) is configured as a cavity structure. A circular shaft hole is provided at the end of the intermediate connecting cylinder block (101). A flange is provided on the outer wall of the intermediate connecting cylinder block (101). A threaded groove is provided on the outer wall of the intermediate connecting cylinder block (101). An external connector (102) is fixedly connected to the top of the intermediate connecting cylinder block (101). The external connector (102) is connected to the interior of the intermediate connecting cylinder block (101) through a circular hole. The outer wall of the bottom connector (103) is provided with threads. The bottom connector (103) is connected to the interior of the intermediate connecting cylinder block (101) through a circular hole.

3. The dosing device for wastewater treatment according to claim 1, characterized in that: The bottom of the fixed side frame (104) is provided with a shaft hole; the outer fixed cylinder frame (105) is fixedly connected to the outside of the middle connecting cylinder block (101); two sets of fixed brackets (106) are fixedly connected to the outer wall of the outer fixed cylinder frame (105); two sets of stable base frames (107) are fixedly connected to the outer wall of the outer fixed cylinder frame (105); and circular through holes are respectively opened on the two sets of stable base frames (107).

4. The dosing device for wastewater treatment according to claim 1, characterized in that: The docking side cylinder (201) has a cavity structure inside, and the docking side cylinder (201) is connected to the cavity structure of the middle connecting cylinder block (101). The end of the docking side cylinder (201) is provided with a threaded groove. The outer wall of the connecting side head (202) is provided with a rectangular block structure for cooperating with external tools. The center of the connecting side head (202) is provided with a shaft hole. The end of the traction rod (203) is fixed with a threaded rod, and the other end of the traction rod (203) is provided with a shaft groove.

5. A dosing device for wastewater treatment according to claim 2, characterized in that: The end of the connecting frame (204) is fixedly connected to a disc-shaped structure; the inner adjusting plug (205) is slidably connected inside the middle connecting cylinder block (101), and the inner adjusting plug (205) can block the outer connector (102) and the bottom connector (103); the end of the inner adjusting plug (205) is fixedly connected to a cylindrical rod for sliding connection in the circular shaft hole of the middle connecting cylinder block (101); the gap groove (206) and the bottom connector (103) are on the same side.

6. The dosing device for wastewater treatment according to claim 1, characterized in that: The bottom support block (301) is threadedly connected to the threaded groove of the middle cylinder block (101); the bottom support block (301) is provided with a shaft groove; the traction frame (302) is provided with a shaft groove; the end position of the traction plate (303) is rotatably connected to the shaft groove of the traction rod (203).

7. A dosing device for wastewater treatment according to claim 1, characterized in that: The traction frame (302) is rotatably connected to the traction plate (303) via a shaft groove; the other end of the outward-turning rod (304) is rotatably connected to the other end of the traction plate (303) by a synchronous connecting frame (305).

8. A dosing device for wastewater treatment according to claim 1, characterized in that: The connecting sleeve (401) is threaded onto the bottom connector (103). The outer wall of the connecting sleeve (401) is provided with a hexagonal prism protrusion for cooperating with external tools. The dispensing bottom block (402) is provided with a dispensing groove inside. The dispensing groove of the dispensing bottom block (402) is connected to the bottom connector (103).

9. A dosing device for wastewater treatment according to claim 3, characterized in that: The inside of the delivery tube (403) is connected to the dispensing groove of the delivery tube (403); the delivery tube (403) is inserted into the corresponding stable base (107); the delivery head (404) is fixedly connected to the outer wall of the delivery tube (403).

Images