A dosing device for sewage treatment

Abstract

The invention provides a dosing device for sewage treatment, relates to the field of sewage treatment, and comprises: a dosing component, wherein the dosing component is composed of a liquid supply mechanism and a discharge mechanism, and the dosing component can realize the function of discharging a medicine at different positions of the sewage, so that by discharging the medicine from the inside of the sewage, the sewage at different heights can be quickly and evenly reacted with the medicine to achieve the corresponding treatment effect, and the use height of the discharge mechanism can be freely adjusted and used, so that it can be adapted to the dosing treatment of sewage of different depths and types, and solves the problem that the medicine of the dosing device for sewage treatment is added at the top of a stirring tank and then mixed and reacted with the sewage in the tank by stirring, which causes the deep sewage to be unable to react with the medicine in time, quickly and evenly, and the sewage treatment effect is poor.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a dosing device for sewage treatment. Background Art

[0002] In the process of sewage treatment, it is necessary to add chemicals, such as flocculants, into the sewage pool. By adding different types of chemicals, different sewage treatment effects and purposes can be achieved. Taking flocculants as an example, flocculants can react with pollutants in sewage to produce particles or flocs, and then through sedimentation, relatively clean water can be obtained.

[0003] However, as far as the existing sewage treatment dosing devices are concerned, most of them are placed on the top of the stirring tank, and then mixed with the sewage in the tank through stirring. This results in the deep sewage being unable to react with the agent in a timely, rapid and uniform manner, resulting in poor sewage treatment effect, slow efficiency and low practicality. Summary of the invention

[0004] The disclosed embodiment relates to a dosing device for sewage treatment, which comprises a driving component and a dosing component, wherein the driving component can achieve mixing of sewage and a medicine inside a treatment barrel by cooperating with a discharge mechanism, thereby ensuring that the medicine and the sewage can be mixed evenly and improving the sewage treatment effect, and the dosing component can discharge the medicine at different positions of the sewage, thereby enabling sewage at different heights to react with the medicine quickly and evenly by discharging the medicine from the inside of the sewage to achieve a corresponding treatment effect, and the use height of the discharge mechanism can be freely adjusted and used, thereby being able to adapt to the dosing treatment of sewage of different depths and types, and having extremely strong flexibility, adaptability and practicality.

[0005] In a first aspect of the present disclosure, a dosing device for sewage treatment is provided, specifically comprising: a driving assembly and a dosing assembly, wherein the driving assembly comprises a driving motor, an upper retaining frame, a lower retaining frame, a liquid supply seat and a positioning screw, wherein the driving motor is fixedly mounted on the top of a treatment barrel, and the upper retaining frame is rotatably connected to the top of the treatment barrel, the lower retaining frame is rotatably connected to the inside of the liquid supply seat, and the liquid supply seat is fixedly mounted on the bottom of the treatment barrel, and the top and bottom of the positioning screw are rotatably connected to the inside of the upper retaining frame and the lower retaining frame respectively; the dosing assembly is composed of a liquid supply mechanism and a discharge mechanism, and the driving motor and the upper retaining frame are connected through a gear train;

[0006] The liquid supply mechanism includes a channel seat, a primary blocking block and a secondary blocking block. The liquid supply mechanism is provided with multiple groups, and the liquid supply mechanisms are arranged vertically. Adjacent channel seats are fixedly connected to each other end to end. The top channel seat is fixedly installed at the bottom of the upper retaining frame, and the bottom channel seat is fixedly installed at the top of the lower retaining frame. The primary blocking block is inserted into the interior of the channel seat, and the secondary blocking block is inserted into the interior of the primary blocking block.

[0007] The discharge mechanism includes a positioning seat, a discharge rod and a resistance block. The positioning seat is inserted into the outside of the channel seat, and the discharge rod is fixedly installed on the side of the positioning seat. The resistance block is inserted into the inside of the discharge rod, and the positioning screw is screwed into the inside of the positioning seat through the rod body thread.

[0008] In at least some embodiments, an annular liquid supply cavity is provided inside the lower retaining frame, and a liquid supply pipe is provided outside the liquid supply seat, one end of the liquid supply pipe is connected to the liquid supply device, and the other end of the liquid supply pipe is connected to the liquid supply cavity.

[0009] In at least some embodiments, a liquid channel is provided inside the channel seat, and the top of the liquid supply cavity is communicated with the liquid channel.

[0010] In at least some embodiments, a primary top spring is provided on the side of the primary blocking block, and two ends of the primary top spring respectively abut against the side of the primary blocking block and the inside of the channel seat.

[0011] In at least some embodiments, a liquid supply channel is provided inside the first-level blocking block, and control channels are provided on the side surfaces of the first-level blocking block and inside the channel seat. Under the action of the first-level top spring, when the first-level blocking block is not resisted by external force, the control channels of the first-level blocking block and the channel seat are misaligned with each other.

[0012] In at least some embodiments, a secondary top spring is provided on the side of the secondary blocking block, and the two ends of the secondary top spring respectively abut against the side of the secondary blocking block and the inside of the channel seat. Under the action of the secondary top spring, when the secondary blocking block is not resisted by external force, the secondary blocking block can block the outer end of the liquid supply channel.

[0013] In at least some embodiments, a discharge channel is provided inside the discharge rod, and the discharge channel and the liquid supply channel are in the same plane.

[0014] In at least some embodiments, a resistance top spring is provided on the side of the resistance block, and two ends of the resistance top spring respectively resist the inside of the resistance block and the inside of the discharge rod, and the elastic force of the resistance top spring is greater than the elastic force of the secondary top spring.

[0015] In at least some embodiments, the side of the resistance block facing the secondary blocking block is semi-spherical in design, and a semi-spherical avoidance groove is provided inside the primary blocking block. When the semi-spherical block body of the resistance block is inserted into the avoidance groove, the resistance block can push the secondary blocking block toward the inside of the liquid supply channel.

[0016] In at least some embodiments, an extrusion block is provided inside the positioning seat, and both ends of the extrusion block and the primary blocking block are designed with inclined chamfers.

[0017] The dosing device for sewage treatment provided by the present invention has the following beneficial effects.

[0018] 1. The driving component can achieve mixing of sewage and chemicals inside the treatment barrel by cooperating with the discharge mechanism, thereby ensuring that the chemicals and sewage can be mixed evenly and improving the sewage treatment effect.

[0019] 2. The dosing component can discharge the agent at different positions of the sewage, so that the sewage at different heights can react with the agent quickly and evenly by discharging the agent from the inside of the sewage to achieve the corresponding treatment effect, and the height of the discharge mechanism can be freely adjusted, so that it can adapt to the dosing treatment of sewage of different depths and types, thereby improving the flexibility, adaptability and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0025] Figure 3 The present invention Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0026] Figure 4 The present invention Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0027] Figure 5 It is a schematic structural diagram of the upper retainer, the lower retainer and the liquid supply seat after being disassembled.

[0028] Figure 6It is a schematic diagram of the structure of the disassembled discharge mechanism of the present invention.

[0029] Figure 7 It is a schematic diagram of the structure of a single liquid supply mechanism of the present invention after being disassembled.

[0030] Figure 8 It is a schematic diagram of the internal structure of the positioning seat of the present invention when it moves downward to switch the use of the liquid supply mechanism.

[0031] Fig. 9 The present invention Figure 8 Schematic diagram of the enlarged structure of part C in the middle.

[0032] Reference numerals list

[0033] 1. Processing barrel;

[0034] 2. Driving assembly; 201. Driving motor; 202. Upper retainer; 203. Lower retainer; 2031. Liquid supply chamber; 204. Liquid supply seat; 2041. Liquid supply pipeline; 205. Positioning screw;

[0035] 3. Liquid supply mechanism; 301. Channel seat; 3011. Liquid channel; 302. Primary blocking block; 3021. Primary top spring; 3022. Liquid supply channel; 3023. Control channel; 3024. Avoidance groove; 303. Secondary blocking block; 3031. Secondary top spring;

[0036] 4. Discharge mechanism; 401. Positioning seat; 4011. Extrusion block; 402. Discharge rod; 4021. Discharge channel; 403. Resistance block; 4031. Resistance top spring.

[0037] It should be noted that Figure 4 The arrow in the middle indicates the flow direction of the medicine. Figure 8 The middle arrow indicates the direction of movement of the discharge mechanism. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please refer to Figures 1 to 9 As shown:

[0040] Embodiment 1: The present invention provides a dosing device for sewage treatment, comprising a driving assembly 2 and a dosing assembly, wherein the driving assembly 2 comprises a driving motor 201, an upper retaining frame 202, a lower retaining frame 203, a liquid supply seat 204 and a positioning screw 205, wherein the driving motor 201 is fixedly mounted on the top of the treatment barrel 1, and the upper retaining frame 202 is rotatably connected to the top of the treatment barrel 1, the lower retaining frame 203 is rotatably connected to the inside of the liquid supply seat 204, and the liquid supply seat 204 is fixedly mounted on the bottom of the treatment barrel 1, and the top and bottom of the positioning screw 205 are rotatably connected to the inside of the upper retaining frame 202 and the lower retaining frame 203 respectively; the dosing assembly is composed of a liquid supply mechanism 3 and a discharge mechanism 4, and the driving motor 201 and the upper retaining frame 202 are connected through a gear train transmission;

[0041] The liquid supply mechanism 3 includes a channel seat 301, a primary blocking block 302 and a secondary blocking block 303. The liquid supply mechanism 3 is provided with multiple groups, and the liquid supply mechanism 3 is arranged vertically. Adjacent channel seats 301 are fixedly connected to each other end to end. The top channel seat 301 is fixedly installed at the bottom of the upper retaining frame 202, and the bottom channel seat 301 is fixedly installed at the top of the lower retaining frame 203. The primary blocking block 302 is plugged into the inside of the channel seat 301, and the secondary blocking block 303 is plugged into the inside of the primary blocking block 302.

[0042] The discharge mechanism 4 includes a positioning seat 401, a discharge rod 402 and a resistance block 403. The positioning seat 401 is plugged into the outside of the channel seat 301, and the discharge rod 402 is fixedly installed on the side of the positioning seat 401. The resistance block 403 is plugged into the inside of the discharge rod 402, and the positioning screw 205 is screwed into the inside of the positioning seat 401 through the rod body thread.

[0043] The driving component 2 can be used in conjunction with the discharge mechanism 4 to achieve stirring and mixing of the sewage and medicine inside the treatment barrel 1, thereby improving the mixing efficiency and uniformity of the water medicine and improving the sewage treatment effect. When the driving motor 201 rotates, it can drive the upper retaining frame 202 to rotate through the gear set. Since the channel seat 301 connects the upper retaining frame 202, the lower retaining frame 203 and the positioning screw 205 into a whole, when the upper retaining frame 202 rotates, the lower retaining frame 203, the positioning screw 205 and the channel seat 301 can all rotate synchronously. Therefore, the channel seat 301 can drive the discharge mechanism 4 to rotate synchronously when following the rotation of the upper retaining frame 202, thereby achieving the operation of mixing and stirring the water medicine inside the treatment barrel 1 through the discharge rod 402, which is convenient and flexible to use.

[0044] In the disclosed embodiment, an annular liquid supply cavity 2031 is provided inside the lower retaining frame 203, and a liquid supply pipe 2041 is provided outside the liquid supply seat 204, one end of the liquid supply pipe 2041 is connected to the liquid supply device, and the other end of the liquid supply pipe 2041 is connected to the liquid supply cavity 2031. In use, the dosing component can realize the operation of adding medicine from the inside of the sewage. Compared with the traditional method of adding medicine from the top, the method of adding medicine from the inside of the sewage can make the sewage mixed with the sewage from the inside out, and by setting up multiple groups of discharge mechanisms 4, the use effect of layered dosing inside the sewage can be achieved, so that the water medicine reaction is faster and more uniform. The liquid supply device can supply the agent into the liquid supply chamber 2031 through the liquid supply pipe 2041. The channel seat 301 is provided with a liquid channel 3011, and the top of the liquid supply chamber 2031 is connected with the liquid channel 3011. The agent can enter the liquid channel 3011 through the liquid supply chamber 2031 and finally be discharged into the sewage through the discharge mechanism 4 located inside the sewage. Since the liquid supply chamber 2031 is annular in design, the channel seat 301 will not hinder or interrupt the supply of liquid when rotating with the upper retaining frame 202. The liquid supply mechanism 3 can stably provide the agent to the discharge mechanism 4 to realize the operation of water-drug mixing reaction.

[0045] In the embodiment of the present disclosure, an extrusion block 4011 is provided inside the positioning seat 401, and both ends of the extrusion block 4011 and the first-level blocking block 302 are designed with inclined chamfers, a first-level top spring 3021 is provided on the side of the first-level blocking block 302, and both ends of the first-level top spring 3021 are respectively pressed against the side of the first-level blocking block 302 and the inside of the channel seat 301, a liquid supply channel 3022 is provided inside the first-level blocking block 302, and a control channel 3023 is provided on the block side of the first-level blocking block 302 and the inside of the channel seat 301. Under the action of the first-level top spring 3021, when the first-level blocking block 302 is not resisted by external force, the first-level blocking block 302 and the control channel 3023 of the channel seat 301 are offset from each other. In use, when adding medicine into the sewage, only the liquid supply mechanism 3 located at the discharge mechanism 4 will be opened to realize the liquid supply function, while the liquid supply mechanisms 3 at other positions will be closed, and there will be no leakage of medicine, so as to avoid the phenomenon of medicine leakage and waste in the liquid supply mechanisms 3 other than the discharge mechanism 4. Since the liquid supply mechanisms 3 at other positions except the discharge mechanism 4 are not squeezed by the squeezing block 4011, they are all in a closed state. Under the action of the primary top spring 3021, the primary blocking block 302 and the control channel 3023 of the channel seat 301 are mutually misaligned, so that the medicine cannot flow out from the inside of the liquid supply channel 3022. The liquid supply mechanism 3 located at the discharge mechanism 4 is automatically in the open state, and the primary blocking block 302 of the liquid supply mechanism 3 at this position will be squeezed and moved by the squeezing block 4011, so that the primary blocking block 302 and the control channel 3023 of the channel seat 301 overlap with each other. At this time, the medicine in the liquid channel 3011 can enter the liquid supply channel 3022 through the control channel 3023. The side of the resistance block 403 facing the secondary blocking block 303 is semi-spherical in design, and the interior of the primary blocking block 302 is provided with a semi-spherical avoidance groove 3024. When the semi-spherical block of the resistance block 403 is inserted into the interior of the avoidance groove 3024, the resistance block 403 can The block 303 is pushed toward the interior of the liquid supply channel 3022. Under the action of the resistance top spring 4031, the resistance block 403 is inserted into the interior of the avoidance groove 3024, so that the resistance block 403 will resist and move the secondary blocking block 303, so that the secondary blocking block 303 will release the blocking state of the outer end of the liquid supply channel 3022. A discharge channel 4021 is provided inside the discharge rod 402, and the discharge channel 4021 and the liquid supply channel 3022 are in the same plane. Thereafter, the medicine inside the liquid channel 3011 can enter the interior of the discharge channel 4021 through the control channel 3023 and the liquid supply channel 3022 in turn, and finally be discharged into the sewage from the inside of the sewage through the discharge channel 4021, which is stable to use.

[0046] In the embodiment of the present disclosure, a secondary top spring 3031 is provided on the side of the secondary blocking block 303, and the two ends of the secondary top spring 3031 are respectively against the side of the secondary blocking block 303 and the inside of the channel seat 301. Under the action of the secondary top spring 3031, when the secondary blocking block 303 is not resisted by external force, the secondary blocking block 303 can block the outer end of the liquid supply channel 3022. In use, the use height of the discharge mechanism 4 can be adjusted by the positioning screw 205, so that the dosing component can adapt to the dosing operation of sewage treatment at different depths, and has strong adaptability. When the upper fixing is maintained When the bracket 202 is raised and the positioning screw 205 is rotated, the positioning screw 205 can drive the positioning seat 401 to move up and down to change the use position through the rod body thread, thereby changing the use height of the entire discharge mechanism 4, and the regulation is convenient and flexible, and the discharge mechanism 4 will not cause leakage of the medicine when it moves. When the positioning seat 401 moves up and down, it can release the resistance and extrusion of the current first-level blocking block 302 and resist and squeeze the next first-level blocking block 302 in the moving direction. When the positioning seat 401 releases the resistance and extrusion of the current first-level blocking block 302, the resistance block 403 first moves toward the discharge rod 40 2 contracts and compresses the resisting top spring 4031, releasing the resisting and squeezing relationship with the secondary blocking block 303, so that the secondary blocking block 303 will block the liquid supply channel 3022 under the action of the secondary top spring 3031 at the initial stage of the movement of the positioning seat 401 to prevent leakage of the medicine. Thereafter, the positioning seat 401 continues to move to release its resisting and squeezing relationship with the primary blocking block 302, and the liquid supply mechanism 3 at this position is automatically blocked. When the positioning seat 401 resists and squeezes the next primary blocking block 302, the squeezing block 4011 first squeezes the primary blocking block 302 back to make it contact with the liquid supply channel 3022. The control channels 3023 between the rail seats 301 overlap, and at this time, since the resistance block 403 is not fully inserted into the internal groove of the avoidance groove 3024, the secondary blocking block 303 is in a state of blocking the liquid supply channel 3022, until the discharge channel 4021 is aligned with the liquid supply channel 3022, the resistance block 403 resists and squeezes the secondary blocking block 303 to move and open the liquid supply channel 3022, thereby realizing the switching action between adjacent liquid supply mechanisms 3, and the discharge mechanism 4 can be adjusted to the position of any liquid supply mechanism 3 for use, thereby improving the adaptability of the device.

[0047] In the embodiment of the present disclosure, a resisting top spring 4031 is provided on the side of the resisting block 403, and the two ends of the resisting top spring 4031 respectively resist the inside of the resisting block 403 and the inside of the discharge rod 402, and the elastic force of the resisting top spring 4031 is greater than the elastic force of the secondary top spring 3031. In use, the use height of the discharge mechanism 4 can be adjusted by the positioning screw 205, so that the dosing component can adapt to the dosing operation of sewage treatment at different depths, and the adaptability is extremely strong. When the upper retaining frame 202 is fixed and the positioning screw 205 is rotated, the positioning screw 205 can be adjusted by the positioning screw 205. The positioning seat 401 is driven by the rod body thread to move up and down to change the use position, thereby changing the use height of the entire discharge mechanism 4, which is convenient and flexible to adjust, and the discharge mechanism 4 will not cause leakage of medicine when it moves. When the positioning seat 401 moves up and down, it can release the resistance and extrusion of the current first-level blocking block 302 and resist and squeeze the next first-level blocking block 302 in the moving direction. When the positioning seat 401 releases the resistance and extrusion of the current first-level blocking block 302, the resistance block 403 first contracts toward the inside of the discharge rod 402 and compresses the resistance top spring 4031 , the resistance and extrusion relationship with the secondary blocking block 303 is released, so that the secondary blocking block 303 will block the liquid supply channel 3022 under the action of the secondary top spring 3031 at the initial stage of the movement of the positioning seat 401 to prevent leakage of the medicine. After that, the positioning seat 401 continues to move to release its resistance and extrusion relationship with the primary blocking block 302, and the liquid supply mechanism 3 at this position is automatically blocked. When the positioning seat 401 is in resistance and extrusion with the next primary blocking block 302, the extrusion block 4011 first returns to squeeze the primary blocking block 302 so that the control between it and the channel seat 301 The control channel 3023 overlaps, and at this time, since the resistance block 403 is not completely inserted into the internal groove of the avoidance groove 3024, the secondary blocking block 303 is in a state of blocking the liquid supply channel 3022, until the discharge channel 4021 is aligned with the liquid supply channel 3022, the resistance block 403 resists and squeezes the secondary blocking block 303 to move and open the liquid supply channel 3022, thereby realizing the switching use action between adjacent liquid supply mechanisms 3, and the discharge mechanism 4 can be adjusted to the position of any liquid supply mechanism 3 for use, thereby improving the adaptability of the device.

[0048] Specific usage and function of this embodiment: In the present invention, after the sewage is discharged into the interior of the treatment barrel 1, the reaction treatment of the sewage and the agent can be achieved through the driving component 2 and the dosing component. The driving component 2 can be used in conjunction with the discharge mechanism 4 to achieve stirring and mixing of the sewage and the agent inside the treatment barrel 1, thereby improving the mixing efficiency and uniformity of the water and the agent, and improving the sewage treatment effect. When the driving motor 201 rotates, the upper retaining frame 202 can be driven to rotate through the gear set. Since the channel seat 301 connects the upper retaining frame 202, the lower retaining frame 203 and the positioning screw 205 into a whole, when the upper retaining frame 202 rotates, the lower retaining frame 203, the positioning screw 205 and the channel seat 301 can all rotate synchronously, so that the channel seat 30 1 can drive the discharge mechanism 4 to rotate synchronously with the rotation of the upper retaining frame 202, so as to realize the operation of mixing and stirring the water medicine inside the treatment barrel 1 through the discharge rod 402, and the dosing component can realize the operation of dosing from the inside of the sewage. Compared with the traditional method of adding medicine from the top, the method of dosing from the inside of the sewage can make the sewage mixed with the sewage from the inside out, and by setting up multiple groups of discharge mechanisms 4, the use effect of layered dosing inside the sewage can be achieved, so that the water medicine reaction is faster and more uniform, and the liquid supply device can supply the medicine into the inside of the liquid supply cavity 2031 through the liquid supply pipe 2041, and the medicine can enter the inside of the liquid channel 3011 through the liquid supply cavity 2031 and finally pass through the discharge mechanism located inside the sewage. 4 is discharged into the sewage. Since the liquid supply chamber 2031 is annular in design, the channel seat 301 will not hinder or interrupt the supply of liquid when following the rotation of the upper retaining frame 202. The liquid supply mechanism 3 can stably provide the medicine to the discharge mechanism 4 to realize the operation of water-medicine mixing reaction. When the medicine is added into the sewage, only the liquid supply mechanism 3 located at the discharge mechanism 4 will be opened to realize the liquid supply function, while the liquid supply mechanisms 3 at other parts will be closed, and there will be no leakage of medicine, thereby avoiding the leakage and waste of medicine at the liquid supply mechanisms 3 other than the discharge mechanism 4. Since the liquid supply mechanisms 3 at other parts except the discharge mechanism 4 are not squeezed by the squeezing block 4011, they are all in a closed state. Under the action of the primary top spring 3021, the primary blocking block 302 and the control channel 3023 of the channel seat 301 of the liquid supply mechanism 3 are mutually misaligned, so that the medicine cannot flow out and leak from the inside of the liquid supply channel 3022, and the use is stable. The liquid supply mechanism 3 located at the discharge mechanism 4 is automatically in an open state. The primary blocking block 302 of the liquid supply mechanism 3 at this position will be squeezed and moved by the squeezing block 4011, so that the primary blocking block 302 and the control channel 3023 of the channel seat 301 overlap with each other. At this time, the medicine in the liquid channel 3011 can enter the inside of the liquid supply channel 3022 through the control channel 3023, and under the action of the resisting top spring 4031, the resisting block 403 is inserted into the inside of the avoidance groove 3024.Therefore, the resistance block 403 will resist and move the secondary blocking block 303, so that the secondary blocking block 303 will release the blocking state of the outer end of the liquid supply channel 3022, so that the medicine inside the liquid channel 3011 can enter the inside of the discharge channel 4021 through the control channel 3023 and the liquid supply channel 3022 in sequence, and finally be discharged into the sewage from the inside of the sewage through the discharge channel 4021. The use height of the discharge mechanism 4 can be adjusted by the positioning screw 205, so that the dosing component can adapt to the dosing operation of sewage treatment at different depths, and has strong adaptability. When the upper retaining frame 202 is fixed and the positioning screw 205 is rotated, the positioning screw 205 can drive the positioning seat 401 to move up and down to change the use position through the rod body thread, thereby changing the use height of the entire discharge mechanism 4, and the regulation is convenient and flexible, and the discharge mechanism 4 will not cause leakage of the medicine when it moves. When the positioning seat 401 moves up and down, it can release the resistance and extrusion of the current first-level blocking block 302 and resist and squeeze the next first-level blocking block 302 in the moving direction. When the positioning seat 401 releases the resistance and extrusion of the current first-level blocking block 302, the resistance block 403 First, the pressure relief spring 4031 contracts and compresses the inner part of the discharge rod 402 to release the pressure relief spring 4031 on the secondary sealing block 303. As a result, the secondary sealing block 303 blocks the liquid supply channel 3022 under the action of the secondary pressure relief spring 3031 at the initial stage of the movement of the positioning seat 401 to prevent leakage of the medicine. After that, the positioning seat 401 continues to move to release its pressure relief spring 4031 on the primary sealing block 302. The liquid supply mechanism 3 at this position is automatically blocked. When the positioning seat 401 is in pressure relief on the next primary sealing block 302, the extrusion block 4011 first returns to squeeze the primary sealing block 302. The block 302 makes it overlap with the control channel 3023 between the channel seat 301, and at this time, since the resistance block 403 is not completely inserted into the inner groove of the avoidance groove 3024, the secondary blocking block 303 has been in a state of blocking the liquid supply channel 3022, until the discharge channel 4021 is aligned with the liquid supply channel 3022, the resistance block 403 resists and squeezes the secondary blocking block 303 to move and open the liquid supply channel 3022, thereby realizing the switching action between adjacent liquid supply mechanisms 3, and the discharge mechanism 4 can be adjusted to the position of any liquid supply mechanism 3 for use.

[0049] In this article, there are a few points to note:

[0050] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0051] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0052] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A dosing device for sewage treatment, characterized in that: include: A drive assembly (2) and a dosing assembly, wherein the drive assembly (2) comprises a drive motor (201), an upper retaining frame (202), a lower retaining frame (203), a liquid supply seat (204) and a positioning screw (205), wherein the drive motor (201) is fixedly mounted on the top of a treatment barrel (1), and the upper retaining frame (202) is rotatably connected to the top of the treatment barrel (1), the lower retaining frame (203) is rotatably connected to the inside of the liquid supply seat (204), and the liquid supply seat (204) is fixedly mounted on the bottom of the treatment barrel (1), and the top and bottom of the positioning screw (205) are rotatably connected to the inside of the upper retaining frame (202) and the lower retaining frame (203), respectively; the dosing assembly is composed of a liquid supply mechanism (3) and a discharge mechanism (4), and the drive motor (201) and the upper retaining frame (202) are connected to each other by a gear train; The liquid supply mechanism (3) comprises a channel seat (301), a primary blocking block (302) and a secondary blocking block (303); the liquid supply mechanism (3) is provided with a plurality of groups, and the liquid supply mechanisms (3) are arranged vertically; adjacent channel seats (301) are fixedly connected end to end; the topmost channel seat (301) is fixedly mounted on the bottom of the upper retaining frame (202), and the bottommost channel seat (301) is fixedly mounted on the top of the lower retaining frame (203); the primary blocking block (302) is plugged into the interior of the channel seat (301), and the secondary blocking block (303) is plugged into the interior of the primary blocking block (302); The discharge mechanism (4) comprises a positioning seat (401), a discharge rod (402) and a resistance block (403); the positioning seat (401) is plugged into the outside of the channel seat (301), and the discharge rod (402) is fixedly mounted on the side of the positioning seat (401); the resistance block (403) is plugged into the inside of the discharge rod (402), and the positioning screw (205) is screwed into the inside of the positioning seat (401) through the rod body thread; An annular liquid supply cavity (2031) is provided inside the lower retaining frame (203), and a liquid supply pipe (2041) is provided outside the liquid supply seat (204), one end of the liquid supply pipe (2041) is connected to the liquid supply device, and the other end of the liquid supply pipe (2041) is in communication with the liquid supply cavity (2031); A liquid channel (3011) is provided inside the channel seat (301), and the top of the liquid supply cavity (2031) is in communication with the liquid channel (3011); A first-level top spring (3021) is provided on the side of the first-level blocking block (302), and two ends of the first-level top spring (3021) respectively abut against the side of the first-level blocking block (302) and the inside of the channel seat (301); The first-level blocking block (302) is provided with a liquid supply channel (3022) inside, and the block side of the first-level blocking block (302) and the inside of the channel seat (301) are provided with a control channel (3023), and under the action of the first-level top spring (3021), when the first-level blocking block (302) is not resisted by external force, the first-level blocking block (302) and the control channel (3023) of the channel seat (301) are mutually displaced; A secondary top spring (3031) is provided on the side of the secondary blocking block (303), and two ends of the secondary top spring (3031) respectively abut against the side of the secondary blocking block (303) and the inside of the channel seat (301). Under the action of the secondary top spring (3031), when the secondary blocking block (303) is not resisted by external force, the secondary blocking block (303) can block the outer end of the liquid supply channel (3022); An extrusion block (4011) is provided inside the positioning seat (401), and both ends of the extrusion block (4011) and the primary blocking block (302) are designed with inclined chamfers.

2. A dosing device for sewage treatment as claimed in claim 1, characterized in that: A discharge channel (4021) is provided inside the discharge rod (402), and the discharge channel (4021) and the liquid supply channel (3022) are located in the same plane.

3. A dosing device for sewage treatment as claimed in claim 2, characterized in that: A resisting top spring (4031) is provided on the side of the resisting block (403), and two ends of the resisting top spring (4031) respectively resist the inside of the resisting block (403) and the inside of the discharge rod (402), and the elastic force of the resisting top spring (4031) is greater than the elastic force of the secondary top spring (3031).

4. A dosing device for sewage treatment as claimed in claim 3, characterized in that: The side of the resistance block (403) facing the secondary blocking block (303) is of semi-spherical design, and a semi-spherical avoidance groove (3024) is provided inside the primary blocking block (302); when the semi-spherical block body of the resistance block (403) is inserted into the avoidance groove (3024), the resistance block (403) can push the secondary blocking block (303) into the liquid supply channel (3022).

Images