Sewage treatment dosing equipment

Abstract

This utility model discloses a wastewater treatment dosing device, including a delivery pump. One end of the delivery pump is connected to a speed regulating device, which includes a delivery pipe, a speed regulating sleeve, a matching rod, a matching sleeve, a connecting sleeve, a thrust bearing, a movable sleeve, a speed regulating block, a speed regulating plate, and a speed regulating groove. The matching rod is located inside the speed regulating sleeve, and the matching sleeve is located in the movable sleeve. The connecting sleeve and the movable sleeve are installed on both sides of the thrust bearing. The outer wall of the movable sleeve is threaded to the inner wall of the delivery pipe. The speed regulating block is installed on one side of the speed regulating plate. The speed regulating groove is inclinedly opened inside the delivery pipe. A locking mechanism is provided on the outside of the delivery pipe. The locking mechanism includes a control sleeve, a screw sleeve, a driving wheel, a screw, a driven wheel, a shift block, a fixed block, a shift spring, and a shift sleeve. The screw sleeve is sleeved on the outside of the screw and installed on one side of the driven wheel. The driving wheel is installed on one side of the control sleeve. The shift spring is connected to two adjacent shift blocks. This utility model solves the defects of low drug delivery accuracy and poor stability of the regulating system.

Description

Technical Field

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

[0002] In today's era of increasingly stringent environmental protection requirements, the chemical dosing system is a crucial link in the wastewater treatment process. Its performance directly affects the treatment efficiency, chemical utilization rate, and compliance with effluent quality standards. However, current equipment faces significant technical bottlenecks and practical application limitations in terms of precise chemical delivery and operational stability.

[0003] First, traditional wastewater treatment dosing equipment suffers from overly simplified chemical delivery system designs, resulting in insufficient control precision. Most traditional dosing devices inject chemicals into wastewater at a constant flow rate, failing to adjust the dosing rate in real time according to fluctuations in influent water quality. This leads to either excessive or insufficient dosing, affecting treatment effectiveness. The lack of continuous and adjustable precision control makes it difficult to address the special treatment needs of seasonal water quality changes or complex and variable industrial wastewater compositions. It also fails to guarantee optimal dosage ratios and achieve precise dosing control based on water quality data. This technical deficiency, which prevents flexible adjustment of the chemical delivery speed, not only leads to low chemical utilization efficiency and increased treatment costs but can also cause a series of process problems due to improper dosing, such as insufficient flocculation, poor sedimentation, and inhibition of the biological system. These issues severely affect effluent quality and system stability, failing to meet the stringent requirements of modern wastewater treatment engineering for high efficiency, low cost, and refined management.

[0004] Secondly, while some improved dosing equipment has indeed emerged in the market to address the aforementioned issue of reagent delivery accuracy, its structural instability significantly impacts the long-term reliability of the system when applied to actual wastewater treatment environments. In wastewater treatment equipment, especially integrated systems, continuous vibrations from aeration systems, return pumps, and agitators are transmitted to the dosing system via supports and pipes, leading to microscopic displacement and loosening of critical components. During high-pressure delivery, the water hammer effect and pressure pulsations generated during start-up and shutdown cause periodic impacts on the regulating device, gradually reducing its positioning accuracy and causing threshold drift, further affecting control precision. This inherent instability of improved reagent delivery systems directly leads to continuous drift and unpredictable changes in reagent delivery velocity during continuous operation. This not only causes significant deviations between the actual dosage and the set value but may also trigger secondary pollution and reagent waste due to overdosing under harsh conditions, or serious operational accidents such as reduced treatment effectiveness and excessive effluent quality due to underdosing, placing enormous cost pressures and compliance risks on wastewater treatment plants. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a wastewater treatment dosing device to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment dosing device, comprising a delivery pump, one end of which is connected to a speed regulating device, the speed regulating device comprising a delivery pipe, a speed regulating sleeve, a matching rod, a matching sleeve, a connecting sleeve, a thrust bearing, a movable sleeve, a speed regulating block, a speed regulating plate, and a speed regulating groove; the delivery pipe is connected to the output end and the input end of the delivery pump; both ends of the speed regulating sleeve are rotatably connected to the delivery pipe; the matching rod is fixedly disposed inside the speed regulating sleeve; the matching sleeve is fixedly disposed in the movable sleeve; the matching rod slides through the matching sleeve; both the matching rod and the matching sleeve are designed with a prismatic structure; the connecting sleeve is disposed on one side of the speed regulating block; the connecting sleeve and the movable sleeve are detachably mounted on both sides of the thrust bearing; the outer wall of the movable sleeve is movably connected to the inner wall of the delivery pipe via threads; and the... A speed regulating block is fixedly installed on one side of a speed regulating plate, which slides in a speed regulating groove. The speed regulating groove is inclinedly opened inside a conveying pipe. A locking mechanism is provided on the outside of the conveying pipe. The locking mechanism includes a control sleeve, a screw sleeve, a drive wheel, a screw, a driven wheel, a shift block, a fixing block, a shift spring, and a shift sleeve. The control sleeve is rotatably installed on the outside of the conveying pipe. The screw sleeve is movably sleeved on the outside of the screw through a thread. The screw sleeve is fixedly installed on one side of the driven wheel. The drive wheel is fixedly installed on one side of the control sleeve. Multiple screws are fixedly connected to one side of the shift sleeve. Multiple driven wheels mesh with the drive wheel. The shift sleeve is slidably installed on the outside of the conveying pipe. Multiple fixing blocks are fixedly installed on the outside of the conveying pipe. Multiple shift blocks are movably arranged on one side of the speed regulating sleeve. The two ends of the shift spring are respectively connected to two adjacent shift blocks.

[0009] The present invention is further configured such that a connecting chamber is connected to the output end of the conveying pipe, and multiple output pipes are connected to the output end of the connecting chamber. This design realizes the uniform distribution of the liquid, ensures simultaneous addition of the drug at multiple points, improves the homogeneity and reaction efficiency of the sewage treatment system, and avoids uneven treatment caused by local over- or under-dosing.

[0010] The present invention is further configured such that multiple guide plates are fixedly installed in the connecting chamber. The arrangement of the guide plates optimizes the distribution of the liquid flow field, eliminates dead angles and short-circuiting phenomena, and ensures that each output pipe receives liquid with balanced flow and consistent concentration.

[0011] The present invention is further configured such that a plurality of shift rails are provided on one side of the speed regulating sleeve, and a shift groove is provided in the shift block. The shift block is slidably disposed on one side of the shift rail through the shift groove. The design of the shift rail and the shift groove provides precise guidance for the shift block, ensuring the stability of the motion trajectory during the locking process and preventing lateral deviation.

[0012] The present invention is further configured such that a shifting wheel is rotatably provided on one side of the shifting block, and the shifting wheel is engaged between the two shifting blocks.

[0013] The present invention is further configured such that a fixing plate is fixedly provided on the outside of the conveying pipe, and a plurality of the screw sleeves are rotatably mounted on the fixing plate. The fixing plate provides a stable support base for the screw sleeves and optimizes the force transmission path.

[0014] The present invention is further configured such that a plurality of adapter springs are connected to one side of the speed regulating block, and an adapter block is connected to the other end of the adapter spring.

[0015] The present invention is further configured such that a connecting plate is fixedly connected to one side of the speed regulating block, and a connecting groove is provided on the connecting sleeve. The connecting plate slides in the connecting groove, and the sliding cooperation between the connecting plate and the connecting groove ensures the precise guidance of the movement of the speed regulating block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a wastewater treatment dosing device, which has the following features:

[0018] Beneficial effects:

[0019] 1. The speed regulating device includes components such as a conveying pipe, a speed regulating sleeve, a matching rod, a connecting sleeve, a thrust bearing, a movable sleeve, a speed regulating block, a speed regulating plate, and a speed regulating groove. It cleverly solves the technical problem of non-adjustable or insufficiently precise control of the chemical delivery speed in traditional wastewater treatment dosing equipment. This device adopts a precision mechanical transmission structure, achieving adjustable chemical flow. The prismatic structure design of the speed regulating sleeve and matching rod ensures the accuracy and stability of the transmission. The inclined speed regulating groove and the sliding fit with the speed regulating plate allow the rotation of the speed regulating sleeve to drive the speed regulating block to produce precise displacement. This, in turn, through the synergistic action of the adapter spring and the adapter block, changes the flow area within the conveying pipe by the movement of the speed regulating block. The movable sleeve is connected to the inner wall of the conveying pipe via a thread. Combined with the design of the thrust bearing and the connecting sleeve, the smoothness of the adjustment process is ensured. The adjustment process is precise and controllable. The sliding fit between the connecting plate and the connecting groove ensures the accuracy of the speed regulating block's trajectory during movement. This mechanical continuous speed regulating structure can not only adjust the dosing rate of the chemical solution in real time to respond to fluctuations in wastewater quality (such as changes in pH, turbidity, COD concentration, etc.), but also flexibly adjust the optimal dosage ratio in different seasons or when dealing with different types of wastewater. It effectively solves the technical defects of traditional dosing equipment that cannot achieve precise dosing control based on water quality data, improves the efficiency of chemical use, reduces treatment costs, and avoids process problems such as insufficient flocculation, poor sedimentation effect, and inhibition of the biological system caused by improper dosing. It significantly improves the effluent quality and the stability of system operation, meeting the strict requirements of modern wastewater treatment projects for high efficiency, low cost, and refined management.

[0020] 2. The locking mechanism, comprising components such as the control sleeve, screw sleeve, drive wheel, screw, driven wheel, shift block, fixing block, shift spring, and shift sleeve, innovatively solves the technical problem of insufficient structural stability in improved dosing equipment. This mechanism employs an advanced multi-level locking principle, constructing a highly reliable vibration-proof and impact-resistant protection system. The transmission design of the control sleeve with the drive and driven wheels achieves precise transmission of locking force; the combined application of the screw sleeve and screw converts rotational motion into precise linear displacement, ensuring a smooth and controllable locking process; the sliding design of the shift sleeve, in conjunction with the shift block and shift wheel, constructs a three-dimensional locking structure, effectively resisting vibration and impact. It can effectively resist the continuous vibration generated by equipment such as aeration systems, return pumps, and agitators in wastewater treatment equipment, preventing vibration from being transmitted through supports and pipes to the dosing system, causing microscopic displacement and loosening of key components. The shift rail and... The precise fit of the shifting grooves ensures the positioning accuracy of the shifting blocks during the sliding process. The locking mechanism between the shifting wheels and the fixed blocks effectively overcomes the periodic impacts on the regulating device caused by water hammer and pressure pulsations during high-pressure delivery of the liquid, especially at the moment of start-up and shutdown. This ensures that even during long-term use, the locking structure will not gradually loosen due to minor vibrations. This highly reliable locking mechanism solves the problem of continuous drift and unpredictable changes in the liquid delivery flow rate during continuous operation of traditional improved liquid delivery systems. It eliminates the hidden danger of significant deviations between the actual dosage and the set value, and avoids serious operational accidents such as secondary pollution and waste of chemicals caused by excessive dosing due to loosening of the flow rate adjustment structure under harsh conditions, or reduced treatment effect and excessive effluent due to insufficient dosing. It provides wastewater treatment plants with a stable and reliable dosing system, significantly reducing operating cost pressure and compliance risks. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a wastewater treatment dosing device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the dispersed structure of the connecting compartment in this utility model;

[0023] Figure 3 This is a schematic diagram of the dispersed structure of the speed regulating device and locking mechanism in this utility model;

[0024] Figure 4 This is a schematic cross-sectional view of the speed regulating device and locking mechanism in this utility model.

[0025] Figure 5 This is a cross-sectional view of the speed regulating device and locking mechanism of this utility model, excluding the speed regulating sleeve.

[0026] In the diagram: 1. Conveying pump; 2. Conveying pipe; 3. Speed ​​regulating sleeve; 4. Matching rod; 5. Matching sleeve; 6. Connecting sleeve; 7. Thrust bearing; 8. Moving sleeve; 9. Speed ​​regulating block; 10. Speed ​​regulating plate; 11. Speed ​​regulating groove; 12. Control sleeve; 13. Screw sleeve; 14. Driving wheel; 15. Screw; 16. Driven wheel; 17. Shifting block; 18. Fixed block; 19. Shifting spring; 20. Shifting sleeve; 21. Connecting chamber; 22. Output pipe; 23. Guide plate; 24. Shifting rail; 25. Shifting groove; 26. Shifting wheel; 27. Fixed plate; 28. Adaptor spring; 29. ​​Adaptor block; 30. Connecting plate; 31. Connecting groove. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A wastewater treatment dosing device includes a delivery pump 1, with a speed regulating device connected to one end of the delivery pump 1. The speed regulating device includes a delivery pipe 2, a speed regulating sleeve 3, a mating rod 4, a mating sleeve 5, a connecting sleeve 6, a thrust bearing 7, a movable sleeve 8, a speed regulating block 9, a speed regulating plate 10, and a speed regulating groove 11. The delivery pipe 2 is connected to the output and input ends of the delivery pump 1. The two ends of the speed regulating sleeve 3 are rotatably connected to the delivery pipe 2. The mating rod 4 is fixedly installed inside the speed regulating sleeve 3, and the mating sleeve 5 is fixedly installed in the movable sleeve 8. The mating rod 4 slides through the mating sleeve 5. Both the mating rod 4 and the mating sleeve 5 have a prismatic structure design. The connecting sleeve 6 is located on one side of the speed regulating block 9. The connecting sleeve 6 and the movable sleeve 8 are detachably installed on both sides of the thrust bearing 7. The outer wall of the movable sleeve 8 is movably connected to the inner wall of the delivery pipe 2 by threads. The speed regulating block 9 is fixedly installed on one side of the speed regulating plate 10. The speed regulating plate 10 slides at... In the speed regulating groove 11, the speed regulating groove 11 is inclinedly opened inside the conveying pipe 2. A locking mechanism is provided on the outside of the conveying pipe 2. The locking mechanism includes a control sleeve 12, a screw sleeve 13, a driving wheel 14, a screw 15, a driven wheel 16, a shift block 17, a fixing block 18, a shift spring 19, and a shift sleeve 20. The control sleeve 12 is rotatably installed on the outside of the conveying pipe 2. The screw sleeve 13 is movably sleeved on the outside of the screw 15 by a thread. The screw sleeve 13 is fixedly installed on one side of the driven wheel 16. The driving wheel 14 is fixedly installed on one side of the control sleeve 12. Multiple screws 15 are fixedly connected to one side of the shift sleeve 20. Multiple driven wheels 16 mesh with the driving wheel 14. The shift sleeve 20 is slidably installed on the outside of the conveying pipe 2. Multiple fixing blocks 18 are fixedly installed on the outside of the conveying pipe 2. Multiple shift blocks 17 are movably arranged on one side of the speed regulating sleeve 3. The two ends of the shift spring 19 are respectively connected to two adjacent shift blocks 17.

[0031] The output end of the conveying pipe 2 is connected to a connecting chamber 21, and the output end of the connecting chamber 21 is connected to multiple output pipes 22.

[0032] Multiple guide vanes 23 are fixedly installed in the connecting compartment 21.

[0033] In this embodiment, when the device is needed, the delivery pump 1 is first turned on, so that the delivery pump 1 draws out the medicine liquid in the storage device through the pipe connected to the input end. Then, the extracted medicine liquid is transported to the connecting chamber 21 through the delivery pipe 2 connected to the output end of the delivery pump 1. Then, guided by multiple guide plates 23, the medicine liquid in the connecting chamber 21 is distributed to each output pipe 22 and then transported to the sewage tank through multiple output pipes 22.

[0034] Please see Figures 3-5 As a further implementation of the overall equipment: a plurality of shift rails 24 are provided on one side of the speed regulating sleeve 3, and a shift groove 25 is provided in the shift block 17. The shift block 17 is slidably disposed on one side of the shift rail 24 through the shift groove 25.

[0035] A shifting wheel 26 is provided on one side of the shifting block 17, and the shifting wheel 26 is engaged between the two shifting blocks 17.

[0036] A fixing plate 27 is fixedly provided on the outside of the conveying pipe 2, and multiple screw sleeves 13 are rotatably installed on the fixing plate 27.

[0037] Multiple adapter springs 28 are connected to one side of the speed regulating block 9, and an adapter block 29 is connected to the other end of the adapter spring 28.

[0038] A connecting plate 30 is fixedly connected to one side of the speed regulating block 9, and a connecting groove 31 is provided on the connecting sleeve 6. The connecting plate 30 slides in the connecting groove 31.

[0039] More specifically, when the drug delivery speed needs to be adjusted, firstly, the control sleeve 12 is rotated forward, causing the control sleeve 12 to drive the drive wheel 14 installed on one side to rotate forward. Then, the drive wheel 14 drives multiple driven wheels 16 meshing with it to rotate in the opposite direction. Then, the driven wheels 16 drive the screw sleeve 13 to rotate in the opposite direction on the fixed plate 27. Then, the screw 15 will move along the screw sleeve 13, and the screw 15 will drive the shift sleeve 20 to slide, so that the shift sleeve 20 no longer limits the outer side of the shift wheel 26. Then, the speed regulating sleeve 3 is rotated forward, causing the speed regulating sleeve 3 to drive the shift rail 24 installed on one side to rotate forward. Then, the shift rail 24 drives the shift block 17 to rotate forward through the shift groove 25. Then, the shift block 17 drives the shift wheel 26 from the two fixed points. The shifting block 17 moves outward along the shifting rail 24 and shifting groove 25, and the shifting wheel 26 drives the shifting block 17 to slide outward. Then, the shifting block 17 drives the shifting spring 19 to stretch outward. At the same time, the speed regulating sleeve 3 drives the mating sleeve 5 to rotate forward through the inner mating rod 4, and the mating sleeve 5 drives the moving sleeve 8 to rotate forward. Since the outer wall of the moving sleeve 8 and the inner wall of the conveying pipe 2 are connected by threads, the moving sleeve 8 drives the mating sleeve 5 to slide along the mating rod 4, and the moving sleeve 8 pushes the thrust bearing 7 and the connecting sleeve 6 to slide. Then, the connecting sleeve 6 pushes the speed regulating block 9 on one side to slide. Then, the speed regulating block 9 drives the adapter block 29 to move through the adapter spring 28 on one side. At the same time, the speed regulating block 9 drives the speed regulating plate 10 on the other side to move along the... The inclined speed regulating groove 11 slides, and then the speed regulating plate 10 drives the speed regulating block 9 to converge inward, causing the speed regulating block 9 to drive the connecting plate 30 on one side to slide inward along the connecting groove 31. At the same time, the speed regulating block 9 will drive the adapter block 29 to move inward through the adapter spring 28. Then, multiple adapter blocks 29 will gradually abut together. Then the speed regulating block 9 continues to move, shortening the distance between the speed regulating block 9 and the adapter block 29. This causes the speed regulating block 9 and the adapter block 29 to cooperate in compressing the adapter spring 28 to a certain extent, reducing the gap of the adapter spring 28. Simultaneously, the inward movement of the speed regulating block 9 reduces the flow area in the delivery pipe 2, changing the delivery speed of the medicine. When it is necessary to expand the flow area in the delivery pipe 2, the speed regulating sleeve 3 is rotated in the opposite direction. However, once the conveying speed is adjusted appropriately, the speed regulating sleeve 3 stops rotating. At this time, the speed regulating sleeve 3 drives the shifting block 17 and the shifting wheel 26 to rotate between the corresponding two fixed blocks 18 via the shifting rail 24 and the shifting groove 25. Then, the shifting spring 19 resets and pulls the shifting block 17 to slide inward along the shifting rail 24 and the shifting groove 25, so that the shifting block 17 drives the shifting wheel 26 to engage between the corresponding two fixed blocks 18. At this time, the control sleeve 12 is rotated in the opposite direction, so that the control sleeve 12 drives the driving wheel 14 to rotate in reverse. Then, the driving wheel 14 drives multiple driven wheels 16 to rotate in the forward direction. Then, the driven wheels 16 drive the screw sleeve 13 to rotate in the forward direction on the fixed plate 27. Then, the screw 15 drives the shifting sleeve 20 to slide and reset, so that the inner wall of the shifting sleeve 20 limits the outer side of the shifting wheel 26 again.This prevents the shifting wheel 26 and shifting block 17 from moving outwards, thus limiting the speed regulating sleeve 3 and preventing it from rotating. This ensures the structural stability after flow rate adjustment, thereby guaranteeing stable delivery of the liquid medicine.

[0040] In summary, when the equipment is in use or running: when the equipment needs to be used, first turn on the delivery pump 1 so that the delivery pump 1 draws out the medicine liquid from the storage device through the pipe connected to the input end. Then, the extracted medicine liquid is transported to the connecting chamber 21 through the delivery pipe 2 connected to the output end of the delivery pump 1. Then, guided by multiple guide plates 23, the medicine liquid in the connecting chamber 21 is distributed to each output pipe 22 and then transported to the sewage tank through multiple output pipes 22.

[0041] When the drug delivery speed needs to be adjusted, firstly, rotate the control sleeve 12 forward, causing the drive wheel 14 installed on one side to rotate forward. Then, the drive wheel 14 drives multiple driven wheels 16 meshing with it to rotate in the opposite direction. Then, the driven wheels 16 drive the screw sleeve 13 to rotate in the opposite direction on the fixed plate 27. Then, the screw 15 will move along the screw sleeve 13, and the screw 15 will drive the shift sleeve 20 to slide, so that the shift sleeve 20 no longer limits the outer side of the shift wheel 26. Then, rotate the speed regulating sleeve 3 forward, causing the speed regulating sleeve 3 to drive the shift rail 24 installed on one side to rotate forward. Then, the shift rail 24 drives the shift block 17 to rotate forward through the shift groove 25. Then, the shift block 17 drives the shift wheel 26 from the two fixed blocks 18. The shifting wheel 26 drives the shifting block 17 to slide outward along the shifting rail 24 and the shifting groove 25. Then, the shifting block 17 drives the shifting spring 19 to stretch outward. At the same time, the speed regulating sleeve 3 drives the mating sleeve 5 to rotate forward through the inner mating rod 4, and the mating sleeve 5 drives the moving sleeve 8 to rotate forward. Since the outer wall of the moving sleeve 8 and the inner wall of the conveying pipe 2 are connected by threads, the moving sleeve 8 drives the mating sleeve 5 to slide along the mating rod 4, and the moving sleeve 8 pushes the thrust bearing 7 and the connecting sleeve 6 to slide. Then, the connecting sleeve 6 pushes the speed regulating block 9 on one side to slide. Then, the speed regulating block 9 drives the adapter block 29 to move through the adapter spring 28 on one side. At the same time, the speed regulating block 9 drives the speed regulating plate 10 on the other side to move along the inclined... The speed regulating groove 11 slides, and then the speed regulating plate 10 drives the speed regulating block 9 to converge inward, causing the speed regulating block 9 to drive the connecting plate 30 on one side to slide inward along the connecting groove 31. At the same time, the speed regulating block 9 will drive the adapter block 29 to move inward through the adapter spring 28. Then, multiple adapter blocks 29 will gradually come together. Then the speed regulating block 9 continues to move, shortening the distance between the speed regulating block 9 and the adapter block 29. This allows the speed regulating block 9 and the adapter block 29 to compress the adapter spring 28 to a certain extent, reducing the gap of the adapter spring 28. Combined with the inward movement of the speed regulating block 9, the flow area in the delivery pipe 2 is reduced, changing the delivery speed of the medicine. When it is necessary to increase the flow area in the delivery pipe 2, the speed regulating sleeve 3 can be rotated in the opposite direction. Once the conveying speed is adjusted appropriately, the speed regulating sleeve 3 is stopped. At this time, the speed regulating sleeve 3 drives the shifting block 17 and the shifting wheel 26 to rotate between the corresponding two fixed blocks 18 via the shifting rail 24 and the shifting groove 25. Then, the shifting spring 19 resets and pulls the shifting block 17 to slide inward along the shifting rail 24 and the shifting groove 25, so that the shifting block 17 drives the shifting wheel 26 to engage between the corresponding two fixed blocks 18. At this time, the control sleeve 12 is rotated in the opposite direction, so that the control sleeve 12 drives the driving wheel 14 to rotate in reverse. Then, the driving wheel 14 drives multiple driven wheels 16 to rotate in the forward direction. Then, the driven wheels 16 drive the screw sleeve 13 to rotate in the forward direction on the fixed plate 27. Then, the screw 15 drives the shifting sleeve 20 to slide and reset, so that the inner wall of the shifting sleeve 20 limits the outer side of the shifting wheel 26 again.This prevents the shifting wheel 26 and shifting block 17 from moving outwards, thus limiting the speed regulating sleeve 3 and preventing it from rotating. This ensures the structural stability after flow rate adjustment, thereby guaranteeing stable delivery of the liquid medicine.

[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment dosing device, comprising a transfer pump (1), characterized in that: One end of the delivery pump (1) is connected to a speed regulating device, which includes a delivery pipe (2), a speed regulating sleeve (3), a matching rod (4), a matching sleeve (5), a connecting sleeve (6), a thrust bearing (7), a movable sleeve (8), a speed regulating block (9), a speed regulating plate (10), and a speed regulating groove (11). The matching rod (4) is located inside the speed regulating sleeve (3), the matching sleeve (5) is located in the movable sleeve (8), the connecting sleeve (6) and the movable sleeve (8) are installed on both sides of the thrust bearing (7), the outer wall of the movable sleeve (8) is threaded to the inner wall of the delivery pipe (2), the speed regulating block (9) is installed on one side of the speed regulating plate (10), and the speed regulating groove (11) is inclinedly opened on the delivery pipe (2). Inside, a locking mechanism is provided on the outside of the conveying pipe (2). The locking mechanism includes a control sleeve (12), a screw sleeve (13), a drive wheel (14), a screw (15), a driven wheel (16), a shift block (17), a fixing block (18), a shift spring (19), and a shift sleeve (20). The screw sleeve (13) is threaded onto the outside of the screw (15). The screw sleeve (13) is installed on one side of the driven wheel (16). The drive wheel (14) is installed on one side of the control sleeve (12). Multiple screws (15) are connected to one side of the shift sleeve (20). Multiple fixing blocks (18) are installed on the outside of the conveying pipe (2). The shift spring (19) is connected to two adjacent shift blocks (17).

2. The wastewater treatment dosing equipment according to claim 1, characterized in that: The output end of the conveying pipe (2) is connected to a connecting chamber (21), and the output end of the connecting chamber (21) is connected to multiple output pipes (22).

3. The wastewater treatment dosing equipment according to claim 2, characterized in that: Multiple guide plates (23) are fixedly installed in the connecting compartment (21).

4. A wastewater treatment dosing device according to any one of claims 1-3, characterized in that: The speed regulating sleeve (3) has multiple shift rails (24) on one side, and the shift block (17) has a shift groove (25) in it. The shift block (17) is slidably disposed on one side of the shift rail (24) through the shift groove (25).

5. A wastewater treatment dosing device according to claim 4, characterized in that: The shifting block (17) has a shifting wheel (26) on one side that rotates, and the shifting wheel (26) is engaged between the two shifting blocks (17).

6. A wastewater treatment dosing device according to claim 5, characterized in that: A fixing plate (27) is fixedly provided on the outside of the conveying pipe (2), and a plurality of the screw sleeves (13) are rotatably installed on the fixing plate (27).

7. A wastewater treatment dosing device according to claim 1, characterized in that: The speed regulating block (9) is connected to a plurality of adapter springs (28) on one side, and the adapter springs (28) are connected to an adapter block (29) on the other side.

8. A wastewater treatment dosing device according to claim 7, characterized in that: A connecting plate (30) is fixedly connected to one side of the speed regulating block (9), and a connecting groove (31) is provided on the connecting sleeve (6). The connecting plate (30) slides in the connecting groove (31).

Images