Quantitative dosing device for wastewater treatment

Abstract

The application discloses a quantitative dosing device for wastewater treatment, which comprises a dosing assembly, a wastewater treatment tank, a supporting column, a medicine storage box, a filling opening and a discharge pipe, the supporting column is fixed to the top of the wastewater treatment tank, the medicine storage box is fixed to the top end of the supporting column, the filling opening is arranged on the top of the medicine storage box, the discharge pipe is communicated with the medicine storage box, a quantitative assembly is arranged on the discharge pipe and comprises a discharge piece, a locking piece, a rotating piece, a transmission piece and a guide piece, the discharge piece is arranged on the discharge pipe, the locking piece is arranged on one side of the discharge piece, the rotating piece is located on one side of the discharge piece, and the transmission piece is arranged on one side of the rotating piece. The dosing assembly is arranged to add medicine in wastewater, and the quantity of the medicine is controlled by the quantitative assembly, so that the quantity of the medicine can match the wastewater.

Description

Technical Field

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

[0002] Wastewater treatment utilizes physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, making full use of water resources. During wastewater treatment, chemical agents need to be added. Currently, most chemical addition is done manually. This method not only wastes a lot of manpower but also makes it difficult to control the dosage, leading to reduced agent effectiveness and ultimately affecting wastewater treatment. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing quantitative dosing devices for wastewater treatment, the present invention is proposed.

[0005] Therefore, the problem that this invention aims to solve is that in the prior art, the dosing of chemicals in wastewater is mostly done manually. This method not only wastes a lot of manpower, but also makes it difficult to control the dosage of the added chemicals, resulting in a reduction in the effectiveness of the chemicals and thus affecting the treatment of wastewater.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quantitative dosing device for wastewater treatment, comprising a dosing assembly including a wastewater treatment tank, a support column, a storage tank, a filling port, and a discharge pipe. The support column is fixed to the top of the wastewater treatment tank, the storage tank is fixed to the top of the support column, the filling port is located at the top of the storage tank, and the discharge pipe is connected to the storage tank. A metering component, disposed on the discharge pipe, includes a discharge element, a locking element, a rotating element, a transmission element, and a guide element. The discharge element is disposed on the discharge pipe, the locking element is disposed on one side of the discharge element, the rotating element is located on one side of the discharge element, and the transmission element is disposed on one side of the rotating element.

[0007] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the discharge component includes a fixed box, a first gear, and a second gear. The fixed box is fixed to the discharge pipe, and the first gear and the second gear are rotatably connected inside the fixed box, and the first gear and the second gear mesh.

[0008] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the locking component includes a connecting shaft, a positioning plate, a fixing column, and a squeezing plate. One end of the connecting shaft is fixed to the first gear, one side of the positioning plate is fixed to the fixing box, the fixing column is inserted into the positioning plate, and the squeezing plate is fixed to one end of the fixing column.

[0009] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the locking member further includes a first spring, the two ends of which are fixed to the positioning plate and the squeezing plate respectively, and are sleeved on the outside of the fixing column.

[0010] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the rotating component includes a connecting sleeve, a positioning box, and a spring. One end of the connecting sleeve is fixed to the second gear, the positioning box is fixed to one side of the fixed box, and the spring is disposed inside the positioning box.

[0011] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the rotating component further includes a positioning sleeve, a movable disc, a positioning column, and a limiting column. The positioning sleeve is rotatably connected to the connecting sleeve, the movable disc is rotatably connected to the positioning sleeve, the movable disc has a sliding groove, the positioning column slides in the sliding groove, one end of the limiting column is fixed to the positioning column, and the connecting sleeve has a limiting hole corresponding to the limiting column.

[0012] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the rotating component further includes a torsion spring and a positioning rod, the torsion spring being disposed on one side of the movable disc, and the positioning rod being rotatably connected to the positioning sleeve.

[0013] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the transmission component includes a third gear, a rack, and a floating bucket. The third gear is fixed to one end of the positioning rod, the rack is located on one side of the third gear, the top of the floating bucket is fixed to the rack, and the third gear meshes with the rack.

[0014] In a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the guide component includes a positioning frame and a connecting rod, the positioning frame is located outside the rack, and the two ends of the connecting rod are respectively fixed to the positioning frame and the discharge pipe.

[0015] As a preferred embodiment of the quantitative dosing device for wastewater treatment according to the present invention, the guide component further includes a fixed sleeve, a positioning shaft, and a second spring. The fixed sleeve is fixed to one side of the rack, the positioning shaft is inserted into the fixed sleeve, and the two ends of the second spring are fixed to the fixed sleeve and the positioning shaft, respectively. A guide groove is provided in the positioning frame, and the positioning shaft slides in the guide groove.

[0016] The beneficial effects of this invention are as follows: by setting up a dosing component, it is used to add chemicals to wastewater, and by using a metering component to control the quantity of chemicals, the quantity of chemicals can be matched with the wastewater. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a structural diagram of a quantitative dosing device for wastewater treatment.

[0018] Figure 2 Main view of the discharge pipe of a quantitative dosing device for wastewater treatment.

[0019] Figure 3 For wastewater treatment quantitative dosing device Figure 2 Enlarged view of the structure at point A in the middle.

[0020] Figure 4 Diagram showing the connection structure of the rack and float tank in a quantitative dosing device for wastewater treatment.

[0021] Figure 5 A cross-sectional view of the fixed box structure of a quantitative dosing device for wastewater treatment.

[0022] Figure 6 Main view of the fixed box structure for a quantitative dosing device for wastewater treatment.

[0023] Figure 7 A cross-sectional view of the connecting sleeve of a quantitative dosing device for wastewater treatment.

[0024] Figure 8 Diagram showing the connection structure of the movable disc and torsion spring in a quantitative dosing device for wastewater treatment.

[0025] Figure 9 A partial cross-sectional view of the positioning frame of a quantitative dosing device for wastewater treatment.

[0026] Figure 10 A partial structural diagram of the rack of a quantitative dosing device for wastewater treatment. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1 Reference Figures 1-6 and Figure 10 This is the first embodiment of the present invention, which provides a quantitative dosing device for wastewater treatment. The device includes a dosing component 100 and a metering component 200, which work together to add a predetermined amount of reagent to the wastewater, thereby making the wastewater treatment more thorough. Specifically, the dosing assembly 100 includes a wastewater treatment tank 101, a support column 102, a storage tank 103, a filling port 104, and a discharge pipe 105. The support column 102 is fixed to the top of the wastewater treatment tank 101, the storage tank 103 is fixed to the top of the support column 102, the filling port 104 is located on the top of the storage tank 103, and the discharge pipe 105 is connected to the storage tank 103.

[0031] Wastewater treatment tank 101 is used to store wastewater, support column 102 is used to support and fix chemical storage tank 103, chemical agents are stored in the chemical storage tank 103, and the agents are transported to the wastewater treatment tank 101 through discharge pipe 105, and filling port 104 is used to add agents into the chemical storage tank 103.

[0032] Specifically, the quantitative component 200 is disposed on the discharge pipe 105 and includes a discharge component 201, a locking component 202, a rotating component 203, a transmission component 204, and a guide component 205. The discharge component 201 is disposed on the discharge pipe 105, the locking component 202 is disposed on one side of the discharge component 201, the rotating component 203 is located on one side of the discharge component 201, and the transmission component 204 is disposed on one side of the rotating component 203.

[0033] By configuring the discharge component 201, when the discharge component 201 rotates, the reagent can fall into the wastewater treatment tank 101 through the discharge pipe 105, thereby completing the dosing of the wastewater. When the discharge component 201 stops rotating, the dosing of the wastewater stops, thus ensuring the matching of the reagent and the wastewater. The locking component 202 is used to limit the discharge component 201, preventing it from rotating due to the downward pressure of the reagent when it stops rotating, which could lead to reagent leakage. The rotating component 203 is used to drive the discharge component 201 to rotate, thereby ensuring that... The discharge component 201 can convey the agent downwards. The transmission component 204 is used to drive the rotating component 203 to rotate. The number of rotations of the rotating component 203 driven by the transmission component 204 corresponds to the amount of wastewater in the wastewater treatment tank 101. When the wastewater level is higher, the number of rotations of the rotating component 203 driven by the transmission component 204 is more, and correspondingly, the discharge component 201 conveys more agent. This ensures that the amount of agent matches the amount of wastewater. The guide component 205 is used to apply a guiding force to the transmission component 204 to prevent it from deviating during movement.

[0034] Example 2 Reference Figure 3 , Figures 5-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the discharge component 201 includes a fixed box 201a, a first gear 201b, and a second gear 201c. The fixed box 201a is fixed to the discharge pipe 105. The first gear 201b and the second gear 201c are both rotatably connected inside the fixed box 201a, and the first gear 201b and the second gear 201c mesh.

[0036] The fixed box 201a is connected to the discharge pipe 105. The first gear 201b and the second gear 201c are rotatably connected to the fixed box 201a through a rotating shaft. The meshing point of the first gear 201b and the second gear 201c is sealed, and the first gear 201b and the second gear 201c are tightly fitted to the inner wall of the fixed box 201a. When the first gear 201b or the second gear 201c rotates in any direction, the medicine can be conveyed downward, thereby completing the dispensing of the medicine.

[0037] Specifically, the locking component 202 includes a connecting shaft 202a, a positioning plate 202b, a fixing post 202c, and a pressing plate 202d. One end of the connecting shaft 202a is fixed to the first gear 201b, one side of the positioning plate 202b is fixed to the fixing box 201a, the fixing post 202c is inserted into the positioning plate 202b, and the pressing plate 202d is fixed to one end of the fixing post 202c.

[0038] One end of the connecting shaft 202a extends through to the outside of the fixed box 201a. The fixed column 202c is movably connected to the positioning plate 202b. The extrusion plate 202d is semi-circular and extrudes the connecting shaft 202a. Through the cooperation of the two, a limiting force can be applied to the first gear 201b, so that it will not rotate when subjected to the pressure of the drug flow, thereby avoiding the leakage of the drug.

[0039] Specifically, the locking component 202 also includes a first spring, the two ends of which are fixed to the positioning plate 202b and the pressing plate 202d respectively, and are sleeved on the outside of the fixing post 202c.

[0040] The first spring is used to apply a pushing force to the extrusion plate 202d, thereby making the extrusion plate 202d press the connecting shaft 202a more tightly, thus making the limiting of the first gear 201b more stable.

[0041] Specifically, the rotating component 203 includes a connecting sleeve 203a, a positioning box 203b, and a spring 203c. One end of the connecting sleeve 203a is fixed to the second gear 201c, the positioning box 203b is fixed to one side of the fixed box 201a, and the spring 203c is disposed inside the positioning box 203b.

[0042] One end of the connecting sleeve 203a extends through to the outside of the fixed box 201a. The positioning box 203b is used to position the spring 203c. The spring 203c is fixed to the connecting sleeve 203a. When the connecting sleeve 203a rotates, it drives the second gear 201c to rotate, and the second gear 201c drives the first gear 201b to rotate. When both rotate, the agent is initially dispensed. At the same time, the connecting sleeve 203a tightens the spring 203c when it rotates. When the connecting sleeve 203a stops rotating, the rotational force of the spring 203c drives the connecting sleeve 203a to rotate in the opposite direction, and the connecting sleeve 203a drives the second gear 201c to rotate again. This allows the agent to be dispensed again, thus ensuring that the amount of agent matches the amount of sewage.

[0043] Specifically, the rotating component 203 also includes a positioning sleeve 203d, a movable disk 203e, a positioning post 203f, and a limiting post 203g. The positioning sleeve 203d is rotatably connected to the connecting sleeve 203a, the movable disk 203e is rotatably connected to the positioning sleeve 203d, the movable disk 203e is provided with a sliding groove Z, the positioning post 203f slides in the sliding groove Z, one end of the limiting post 203g is fixed to the positioning post 203f, and the connecting sleeve 203a is provided with a limiting hole X corresponding to the limiting post 203g.

[0044] The positioning sleeve 203d is rotatably connected to the connecting sleeve 203a via a bearing, and the movable disk 203e is rotatably connected to the positioning sleeve 203d via a rotating shaft. The positioning sleeve 203d has a slot, and the limiting post 203g is inserted into the slot. The slide groove Z is arc-shaped. When the movable disk 203e rotates, it will drive the positioning post 203f to move in the slide groove Z, and the positioning post 203f will drive the limiting post 203g to move, so that it is inserted into the limiting hole X. The cooperation between the limiting post 203g and the limiting hole X can limit the positioning sleeve 203d and the connecting sleeve 203a, so that when the positioning sleeve 203d rotates, it can drive the connecting sleeve 203a to rotate, thereby allowing the connecting sleeve 203a to drive the second gear 201c to rotate.

[0045] Example 3 Reference Figure 2 , Figure 4 and Figures 7-10 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0046] Specifically, the rotating component 203 also includes a torsion spring 203h and a positioning rod 203i. The torsion spring 203h is located on one side of the movable disk 203e, and the positioning rod 203i is rotatably connected to the positioning sleeve 203d.

[0047] Both ends of the torsion spring 203h are fixed to the positioning rod 203i and the movable disc 203e respectively via mounting blocks. The torsion spring is in a near-extreme compression state. When the positioning rod 203i rotates, the mounting blocks tighten the torsion spring 203h. Because the torsion spring 203h is in a compressed state, the positioning rod 203i does not need to rotate too many turns to prevent the torsion spring 203h from tightening. When the torsion spring 203h cannot be tightened, it will rotate with the positioning rod 203i, thereby driving the movable disc 203e to rotate. After the positioning rod 203i stops rotating, the torsion spring 203h will generate a rotational force, which will drive the movable disk 203e to rotate in the opposite direction. When the movable disk 203e rotates in the opposite direction, it will drive the positioning pin 203f to move in the opposite direction in the slide groove Z, and drive the limiting pin 203g to move through the positioning pin 203f, so that the limiting pin 203g separates from the limiting hole X, thereby releasing the limitation on the positioning sleeve 203d and the connecting sleeve 203a, so that when the mainspring 203c drives the connecting sleeve 203a to rotate, the positioning sleeve 203d will not rotate with it.

[0048] Specifically, the transmission component 204 includes a third gear 204a, a rack 204b, and a float 204c. The third gear 204a is fixed to one end of the positioning rod 203i, the rack 204b is located on one side of the third gear 204a, the top of the float 204c is fixed to the rack 204b, and the third gear 204a meshes with the rack 204b.

[0049] The floating bucket 204c is located inside the wastewater treatment tank 101. When wastewater is added to the wastewater treatment tank 101, the wastewater will cause the floating bucket 204c to move upward. The floating bucket 204c will then drive the rack 204b to move, which in turn will drive the third gear 204a to rotate. This will cause the third gear 204a to drive the positioning rod 203i to rotate. When the wastewater is no longer added to the wastewater treatment tank 101, the floating bucket 204c will stop rising and the positioning rod 203i will stop rotating. This ensures that the number of rotations of the positioning rod 203i matches the amount of wastewater.

[0050] Specifically, the guide 205 includes a positioning frame 205a and a connecting rod 205b. The positioning frame 205a is located outside the rack 204b, and the two ends of the connecting rod 205b are fixed to the positioning frame 205a and the discharge pipe 105, respectively.

[0051] There are multiple connecting rods 205b, which are evenly distributed on one side of the positioning frame 205a. The connecting rods 205b are used to fix the positioning frame 205a. The rack 204b is movably connected to the positioning frame 205a. The positioning frame 205a is used to position the rack 204b and prevent the rack 204b from shifting when it moves.

[0052] Specifically, the guide component 205 also includes a fixed sleeve 205c, a positioning shaft 205d, and a second spring 205e. The fixed sleeve 205c is fixed to one side of the rack 204b, the positioning shaft 205d is inserted into the fixed sleeve 205c, and the two ends of the second spring 205e are fixed to the fixed sleeve 205c and the positioning shaft 205d respectively. A guide groove S is provided in the positioning frame 205a, and the positioning shaft 205d slides in the guide groove S.

[0053] The positioning shaft 205d is movably connected to the fixed sleeve 205c. One end of the positioning shaft 205d is in contact with the inner wall of the guide groove S. The guide groove S is a parallelogram, with its upper and lower ends inclined. Steps are provided on both sides of the inner wall of the guide groove S. When the rack 204b moves upward, it will drive the positioning shaft 205d to slide on the inner wall of the guide groove S. The rack 204b can be positioned by the cooperation of the two. When the positioning shaft 205d moves to the end of the guide groove S, it will contact the inclined surface at the top of the guide groove S and move along the inclined surface to the other side of the guide groove S. When the positioning shaft 205d moves to the other side of the guide groove S, it will cause the rack 204b to separate from the third gear 204a. When the wastewater inside the wastewater treatment tank 101 is discharged outward, the floating bucket 204c will fall downward and drive the rack 204b to move downward. When rack 204b separates from third gear 204a, third gear 204a will not rotate. When floating bucket 204c falls to the bottom of wastewater treatment tank 101, positioning shaft 205d will contact the inclined surface at the bottom of guide groove S and move along the inclined surface to the initial position, thereby driving rack 204b to move and re-engage with third gear 204a. Thus, when floating bucket 204c moves upward, rack 204b can drive third gear 204a to rotate. The second spring 205e is used to apply a pushing force to positioning shaft 205d, so that positioning shaft 205d can always contact the inner wall of guide groove S. The steps at both ends are used to limit positioning shaft 205d, so that positioning shaft 205d can only move along the predetermined track and avoid deviation.

[0054] In use, when wastewater is added to the wastewater treatment tank 101, the wastewater causes the floating bucket 204c to move upwards. The floating bucket 204c then moves the rack 204b, causing the rack 204b to rotate the third gear 204a. This, in turn, causes the third gear 204a to rotate the positioning rod 203i. When the positioning rod 203i rotates, it drives the torsion spring 203h through the mounting block. This, in turn, drives the movable disc 203e to rotate. When the movable disc 203e rotates, it moves the positioning pin 203f within the slide groove Z. The positioning pin 203f then moves the limiting pin 203g, inserting it into the limiting hole X. This allows the positioning sleeve 203d to rotate, driving the connecting sleeve 203a to rotate. The connecting sleeve 203a then drives the second gear 201c to rotate, which in turn drives the first gear 201b to rotate. During rotation, the agent is initially added. Simultaneously, the connecting sleeve 203a tightens the spring 203c. When the wastewater stops being added, the floating bucket 204c stops moving, and the positioning rod 203i stops rotating. At this time, the rotational force generated by the torsion spring 203h drives the movable disc 203e to rotate in the opposite direction. When the movable disc 203e rotates in the opposite direction, it drives the positioning column 203f to move in the opposite direction within the slide groove Z. Through the positioning column 203f, the limiting column 203g moves, causing the limiting column 203g to separate from the limiting hole X, thereby releasing the limiting of the positioning sleeve 203d and the connecting sleeve 203a. At the same time, the rotational force of the spring 203c drives the connecting sleeve 203a to rotate in the opposite direction, and through the connecting sleeve 203a, it drives the second gear 201c to rotate again. This allows the agent to be added again, ensuring that the amount of agent matches the amount of wastewater, and thus matching the amount of agent added with the amount of wastewater.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A quantitative dosing device for wastewater treatment, characterized in that: include, The dosing assembly (100) includes a wastewater treatment tank (101), a support column (102), a storage tank (103), a filling port (104), and a discharge pipe (105). The support column (102) is fixed to the top of the wastewater treatment tank (101), the storage tank (103) is fixed to the top of the support column (102), the filling port (104) is located on the top of the storage tank (103), and the discharge pipe (105) is connected to the storage tank (103). A quantitative component (200) is disposed on the discharge pipe (105) and includes a discharge component (201), a locking component (202), a rotating component (203), a transmission component (204), and a guide component (205). The discharge component (201) is disposed on the discharge pipe (105), the locking component (202) is disposed on one side of the discharge component (201), the rotating component (203) is located on one side of the discharge component (201), and the transmission component (204) is disposed on one side of the rotating component (203). The discharge component (201) includes a fixed box (201a), a first gear (201b), and a second gear (201c). The fixed box (201a) is fixed to the discharge pipe (105). The first gear (201b) and the second gear (201c) are rotatably connected inside the fixed box (201a), and the first gear (201b) and the second gear (201c) mesh. The locking component (202) includes a connecting shaft (202a), a positioning plate (202b), a fixing post (202c), and a pressing plate (202d). One end of the connecting shaft (202a) is fixed to the first gear (201b), one side of the positioning plate (202b) is fixed to the fixing box (201a), the fixing post (202c) is inserted into the positioning plate (202b), and the pressing plate (202d) is fixed to one end of the fixing post (202c). The locking member (202) further includes a first spring, the two ends of which are fixed to the positioning plate (202b) and the pressing plate (202d) respectively, and are sleeved on the outside of the fixing post (202c); The rotating component (203) includes a connecting sleeve (203a), a positioning box (203b), and a spring (203c). One end of the connecting sleeve (203a) is fixed to the second gear (201c), the positioning box (203b) is fixed to one side of the fixed box (201a), and the spring (203c) is disposed inside the positioning box (203b). The rotating component (203) further includes a positioning sleeve (203d), a movable disk (203e), a positioning post (203f), and a limiting post (203g). The positioning sleeve (203d) is rotatably connected to the connecting sleeve (203a), and the movable disk (203e) is rotatably connected to the positioning sleeve (203d). The movable disk (203e) has a sliding groove (Z), and the positioning post (203f) slides in the sliding groove (Z). One end of the limiting post (203g) is fixed to the positioning post (203f), and the connecting sleeve (203a) has a limiting hole (X) corresponding to the limiting post (203g). The rotating component (203) also includes a torsion spring (203h) and a positioning rod (203i). The torsion spring (203h) is disposed on one side of the movable disc (203e), and the positioning rod (203i) is rotatably connected to the positioning sleeve (203d). The transmission component (204) includes a third gear (204a), a rack (204b), and a floating bucket (204c). The third gear (204a) is fixed to one end of the positioning rod (203i), the rack (204b) is located on one side of the third gear (204a), the top of the floating bucket (204c) is fixed to the rack (204b), and the third gear (204a) meshes with the rack (204b). The guide (205) includes a positioning frame (205a) and a connecting rod (205b). The positioning frame (205a) is located outside the rack (204b), and the two ends of the connecting rod (205b) are fixed to the positioning frame (205a) and the discharge pipe (105) respectively. The guide (205) further includes a fixed sleeve (205c), a positioning shaft (205d), and a second spring (205e). The fixed sleeve (205c) is fixed to one side of the rack (204b), the positioning shaft (205d) is inserted into the fixed sleeve (205c), and the two ends of the second spring (205e) are fixed to the fixed sleeve (205c) and the positioning shaft (205d) respectively. A guide groove (S) is provided in the positioning frame (205a), and the positioning shaft (205d) slides in the guide groove (S).

Images