Automatic dosing device for metering pump for sewage treatment

Abstract

The application relates to the sewage treatment technical field and discloses an automatic metering pump dosing device for sewage treatment, which comprises a supporting table, the upper surface of the supporting table is fixedly provided with an inlet bin, the inner support discharging structure capable of moving horizontally is arranged, the packaging containing the powder product can be placed on the upper surface, after the packaging is unpacked, the inner support discharging structure carries the powder product and pushes into the inlet bin, then the driving of the driving structure and the use of the supporting guide frame are matched, so that the inner support discharging structure carrying the powder product packaging moves along the supporting guide frame, the powder product comes out of the packaging, enters the supporting frame first, and then is discharged downward from the supporting frame to the screen of the direct-discharging screen structure of the discharging bin, so that the discharging of the whole bag of powder product can be completed in the inlet bin, and the sealing performance during the operation of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to an automatic dosing device of a metering pump for sewage treatment. BACKGROUND

[0002] The sewage treatment metering pump is a device for sewage treatment, which can deliver liquid medicine to sewage according to certain concentration and flow rate to purify water quality, improve sewage treatment effect and reduce treatment cost.

[0003] The current medicine combined packaging process includes raw material proportioning, stirring and mixing, powder packaging, unpacking and feeding, screening, vacuum suction and spiral conveying, etc. The dust-free feeding station is responsible for unpacking, feeding and screening, which is composed of a feeding bin, a straight discharge screen structure of a discharging bin, a filtering device and a dust removal fan, etc. Its working principle is as follows: the small bag of powder product packaging is manually opened and poured into the feeding bin, the large block material and foreign matter are screened through the straight discharge screen structure of the discharging bin, and the filtered material is continuously conveyed under the cooperation of the vacuum feeding machine to realize automatic feeding and feeding. However, there are still some problems in the existing medicine combined packaging process, which are as follows:

[0004] 1. Sealing problem, since the existing raw material packaging bag is manually opened and then poured, although the negative pressure generated by the subsequent vacuum feeding device will continuously suck the raw material powder into the straight discharge screen structure of the dust-free feeding station, but in this operation process, the feeding bin is in an open state, and during the process of pouring a certain amount of powder raw material into the safety screen, dust raw material will inevitably splash up, and the straight discharge screen structure of the discharging bin is still driven by the vibration motor to vibrate the screen to screen, which will further increase the jumping of dust in it, causing the raw material powder to leak from the feeding bin during the process, which violates the original intention of the design of the dust-free feeding station, and if the leaked powder is in contact with the workers and then sucked again, it will cause the pollution of the raw material powder, and the powder that does not enter again will continuously float and accumulate in the production environment under the action of the dust removal fan, which may cause the safety hazard of dust explosion.

[0005] II. The existing powder packaging bag is directly taken out from the feeding end of the feeding bin by manual operation after the feeding is completed, and a large amount of powder raw materials are adhered to the packaging bag. These residual powder raw materials cannot be fully utilized in the existing dust-free feeding station, and the conventional processing method for the packaging bag is to directly take out and discard. During the taking-out process, the residual powder on the bag will be taken out from the packaging bag during the process of external air being sucked into the feeding station due to the negative pressure suction of the vacuum feeding device, which increases the degree of mixing of the raw material powder and air, accelerates the increase of the dust content in the production environment, and also causes some powder raw materials to fall off and spill from the packaging bag during the taking-out process, thereby polluting the dust-free feeding station and the production environment.

[0006] Therefore, we propose an automatic dosing device for a metering pump for sewage treatment. SUMMARY

[0007] The present application provides an automatic dosing device for a metering pump for sewage treatment, which has the advantages of high utilization rate of powder products and high dust-free operation, and solves the problems raised in the background art.

[0008] The present application provides the following technical scheme: an automatic dosing device for a metering pump for sewage treatment, comprising a support table, a feeding bin fixedly installed on the upper surface of the support table, a filter device fixedly installed at the top end of the feeding bin, a dust removal fan fixedly installed at the top end of the filter device, a discharge bin straight discharge screen structure fixedly installed on the lower surface of the support table and in communication with the bottom end of the feeding bin, a controller fixedly installed on one side of the support table, long groove tracks formed on both sides of the upper surface of the support table, an inner support and discharge structure movably arranged in the feeding bin, and a middle sealing strip fixedly installed in the long groove track of the support table, and a driving structure movably installed at the inner end of the long groove track.

[0009] The feeding bin comprises a bin body shell fixedly installed on the upper surface of the support table, a sealing cover plate movably installed at the left end of the bin body shell, a support guide frame movably connected through the sealing cover plate, and side sealing plates fixedly installed on both sides of the bottom end of the inner surface of the sealing cover plate.

[0010] The inner support and discharge structure comprises a support plate, positioning sleeve rods arranged at both ends of the top left side of the support plate, a supporting frame fixedly installed at the top right side of the support plate, and moving wheels installed on the lower surface of the support plate at the four corners.

[0011] The driving structure comprises an active support frame movably arranged in the long groove track in the support table, and a multi-stage hydraulic telescopic rod fixedly installed on the active support frame.

[0012] In a preferred implementation form, the support guide frame is arranged in the vertical state inside the sealing cover plate when the sealing cover plate is closed, and the top end of the support guide frame extends outside the sealing cover plate and is provided with a horizontal rod.

[0013] In a preferred implementation form, the number of the side sealing plates is four, and two of them are arranged on the two sides of the bottom end of the side sealing plate respectively, and the two of each group are arranged in a spaced manner.

[0014] In a preferred implementation form, the support guide frame comprises an outer extension rod movably connected in the sealing cover plate, the right side of the bottom end of the outer extension rod is fixedly provided with a guide rail through a short rod, the outer extension rod is in the vertical state when the sealing cover plate is closed, the position of the guide rail corresponds to the position of the long groove track opened on the support table, the guide rail is divided into upper and lower ends, the upper end is a vertical structure, the lower end is a circular arc structure, and the bottom end of the circular arc structure is tangent to the horizontal plane.

[0015] In a preferred implementation form, the bottom end of the guide rail is provided with a left inclined support leg, the guide rail is in the vertical state, and the vertical plane where the guide rail is located is on the right side of the vertical plane where the top end of the sealing cover plate is located, the right end of the circular arc structure of the guide rail does not exceed the left end position of the inner support and discharging structure when the inner support and discharging structure is pushed to the leftmost end inside the feeding bin.

[0016] In a preferred implementation form, the lower surface of the support plate is fixedly provided with a counterweight on the left side, the inner part of the positioning sleeve rod is provided with a gravity sensor, and the sensor and the controller are in wireless signal transmission docking, the two pairs of moving wheels are divided into a group, the moving wheels below the positioning sleeve rod on the left side are fixedly connected with the support plate, and the moving wheels below the supporting frame on the right side are movably connected with the support plate, and the moving wheels at the rotating end are connected and arranged on the rightmost edge of the lower surface of the support plate.

[0017] In a preferred implementation form, the bottom end of the supporting frame after being inclined is provided with a left side inclined surface and a right side discharge notch, and the position of the supporting frame after being inclined is the middle position of the top end of the straight-line screen structure of the discharging bin.

[0018] In a preferred implementation form, the position of the intermediate sealing strip in the long groove track of the support table is at the position of the bottom end of the side sealing plate after the sealing cover plate is closed, and the material of the intermediate sealing strip is a flexible and deformable material that can automatically restore, and the left side surface of the intermediate sealing strip after being restored is completely attached to the sealing cover plate when the sealing cover plate is closed.

[0019] In a preferred embodiment, the two sides of the movable support frame are provided with protruding end heads, and the bottom end is provided with a ball, the middle part of the right half of the long groove track on the support table is provided with an extension transverse groove matched with the protruding end heads on the movable support frame, the telescopic end of the multi-stage hydraulic telescopic rod is fixedly connected with the bottom of the right end of the moving wheel, and the position where the telescopic end is connected with the rotatable moving wheel right side bottom end is not higher than the upper surface of the support table.

[0020] The present application has the following advantages:

[0021] 1、The present application is provided with an inner support and unloading structure that can move horizontally, which can place a packaging containing a powder product on its upper surface, and after the packaging is unsealed, the inner support and unloading structure carries the powder product together and advances into the feeding bin, and then through the driving of the driving structure and the use of the supporting guide frame, the inner support and unloading structure carrying the powder product packaging moves along the supporting guide frame, so that the left end of the inner support and unloading structure slowly rises, and the right end reverses downward, so that the powder product can come out of the packaging, first enter the supporting frame, and then be discharged downward from the supporting frame to the screen of the unloading bin straight screen structure, so that the unloading of a whole bag of powder product can be completed in the feeding bin, without the need for manually opening the sealing cover plate repeatedly to supplement the material during the process, greatly improving the sealing performance of the device during operation.

[0022] 2、The present application is provided with an inner support and unloading structure that can move horizontally, which can place a packaging containing a powder product on its upper surface, and after the packaging is unsealed, the inner support and unloading structure carries the powder product together and advances into the feeding bin, and then through the driving of the driving structure and the use of the supporting guide frame, the inner support and unloading structure carrying the powder product packaging moves along the supporting guide frame, so that the left end of the inner support and unloading structure slowly rises, and the right end reverses downward, so that the powder product can come out of the packaging, first enter the supporting frame, and then be discharged downward from the supporting frame to the screen of the unloading bin straight screen structure, so that the unloading of a whole bag of powder product can be completed in the feeding bin, without the need for manually opening the sealing cover plate repeatedly to supplement the material during the process, greatly improving the sealing performance of the device during operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of the present application;

[0025] Figure 3The closing sealing cover plate sectional view structure schematic diagram of the application;

[0026] Figure 4 The push up inner support blanking structure sectional view structure schematic diagram of the application;

[0027] Figure 5 The sealing cover plate and inner support blanking structure and driving structure cooperation three-dimensional schematic diagram of the application;

[0028] Figure 6 The inner support blanking structure and driving structure connection three-dimensional schematic diagram of the application;

[0029] Figure 7 The inner support blanking structure sectional view schematic diagram of the application;

[0030] Figure 8 The application Figure 3 The enlarged structure schematic diagram of A in the application.

[0031] In the figure: 1, support table; 2, feed bin; 21, bin body shell; 22, sealing cover plate; 23, support guide frame; 231, outer extension rod; 232, guide rail; 24, side sealing plate; 3, filtering device; 4, dust removal fan; 5, direct discharge screen structure of blanking bin; 6, controller; 7, inner support blanking structure; 71, support plate; 72, positioning sleeve rod; 73, supporting frame; 74, moving wheel; 8, intermediate sealing strip; 9, driving structure; 91, movable support frame; 92, multi-stage hydraulic telescopic rod. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0033] Please refer to Figure 1 , 2 and 5, which is an automatic dosing device of a metering pump for sewage treatment, comprising a support table 1, the upper surface of the support table 1 is fixedly installed with a feed bin 2, the top end of the feed bin 2 is fixedly installed with a filtering device 3, the top end of the filtering device 3 is fixedly installed with a dust removal fan 4, the lower surface of the support table 1 is fixedly installed with a direct discharge screen structure 5 of a blanking bin in communication with the bottom end of the feed bin 2, one side of the support table 1 is fixedly installed with a controller 6, the both sides of the upper surface of the support table 1 are provided with long groove tracks, the feed bin 2 is movably provided with an inner support blanking structure 7, the long groove track of the support table 1 is fixedly installed with an intermediate sealing strip 8, and the inner end of the long groove track is movably installed with a driving structure 9.

[0034] Compared with the prior art, by opening a long groove track on the upper surface of the support table 1, and providing an inner support and discharging structure 7, the packaging bag containing the powder product can be placed on the upper surface after being unpacked, and one side of the packaging bag is hung on the positioning sleeve rod 72, and then pushed into the feeding bin 2. The inner support and discharging structure 7 is driven by the driving structure 9 to move along the closed support guide 23, so that the left end is tilted, so that the automatic and continuous discharging of the powder product is realized, avoiding the repeated opening of the feeding bin 2 for supplementing the powder product, reducing the operation complexity and ensuring the dust-free effect of the working environment.

[0035] Please refer to Figure 1 、 4 and 5, an automatic dosing device for a metering pump for sewage treatment, comprising a feeding bin 2, the feeding bin 2 comprises a bin body shell 21 fixedly installed on the upper surface of the support table 1, the left end of the bin body shell 21 is movably installed with a sealing cover plate 22, the sealing cover plate 22 is movably connected with a support guide 23, the inner surface of the sealing cover plate 22 is movably installed with four side sealing plates 24, the support guide 23 is in a vertical state when the sealing cover plate 22 is closed, and the top end of the support guide 23 extends outside the sealing cover plate 22 and is provided with a cross bar, the number of side sealing plates 24 is four, and two are a group respectively arranged on the bottom end of the side sealing plate 24, and the two in each group are spaced apart;

[0036] It should be noted that the support guide 23 can make the inner support and discharging structure 7 move upward along one end of the support guide 23 after the powder product packaging bag is moved into the feeding bin 2, and then the whole powder product packaging is tilted to the right side for discharging, so that the whole bag of powder product can be continuously discharged in the feeding bin 2 in a sealed form, avoiding the operation of repeatedly opening the sealing cover plate 22 for supplementing the powder product, and the side sealing plate 24 can cooperate with the use of the middle sealing strip 8 to ensure the sealing performance of the equipment during the discharging of the powder product, avoiding the leakage of the powder from the equipment.

[0037] Please refer to Figure 2 、 3The utility model provides an automatic dosing device of metering pump for sewage treatment as shown in 5, including support guide frame 23, support guide frame 23 includes the outer extension rod 231 of through activity connection in sealing cover plate 22, the bottom end right side of outer extension rod 231 is fixedly installed with guide rail 232 through short pole, the outer extension rod 231 is in vertical state when sealing cover plate 22 is closed, the position of guide rail 232 corresponds with the long groove track position of support table 1, guide rail 232 is divided into upper and lower ends, and the upper end is vertical structure, and the lower end is circular arc structure, and the circular arc bottom end of lower end is tangent with horizontal plane, the bottom end of guide rail 232 is provided with the support leg of left oblique, guide rail 232 is in vertical state and the vertical plane where it is located is located right side of the vertical plane of the top rotary shaft of sealing cover plate 22, the right end of the circular arc structure of guide rail 232 does not exceed the left end position of the whole of inner support and unloading structure 7 when being pushed to the leftmost end inside material bin 2,

[0038] When the sealing cover plate 22 needs to be opened in the embodiment, the support guide frame 23 is first lifted upward as a whole, so that the guide rail 232 is moved upward and separated from the long groove track in the bottom support table 1, then the sealing cover plate 22 is not blocked by the support guide frame 23 during the process of being rotated and opened, and after the sealing cover plate 22 is closed, the support guide frame 23 is automatically moved downward, then when the inner support and unloading structure 7 is moved by the pushing force of the driving structure 9, the guide rail 232 can realize smooth turning and upward movement through the circular arc structure, and then the left end of the inner support and unloading structure 7 is lifted to continuously unload the powder product.

[0039] Please refer to Figure 5 and 6 The utility model provides an automatic dosing device of metering pump for sewage treatment, including inner support and unloading structure 7, inner support and unloading structure 7 include support plate 71, the top left side of support plate 71 is provided with positioning sleeve rod 72 respectively, the top right side of support plate 71 is fixedly installed with bearing frame 73, the lower surface of support plate 71 is installed with mobile wheel 74 on the four corners, the lower surface left side of support plate 71 is fixedly installed with counterweight, the inside of positioning sleeve rod 72 is provided with gravity sensor, and the sensor is wirelessly signal transmission docking between the controller 6, mobile wheel 74 is divided into a group two by two and is located left side, namely the mobile wheel 74 under positioning sleeve rod 72 is fixedly connected with support plate 71, and the mobile wheel 74 under bearing frame 73 is rotatably connected between support plate 71, and the mobile wheel 74 of rotating end is connected and arranged on the rightmost edge of the lower surface of support plate 71;

[0040] It needs to be explained that the setting of the two groups of mobile wheels 74 with different connection modes makes the support plate 71 rotate when it starts to move upward at the support guide frame 23, and then slowly inclines the inner support and discharging structure 7, so that the gravity sensor on the positioning sleeve rod 72 will have gravity data that will decrease to a certain value after the powder product in the packaging bag is completely discharged, and when the value is lower than the threshold value of the empty bag state, the dust removal fan 4 will be controlled to reverse by the controller 6, and then the internal airflow will be blown back, and then the residual powder product in the interior will be cleaned up, improving the utilization rate of the powder product.

[0041] Please refer to Figure 5 and 7 The automatic dosing device for the metering pump for sewage treatment comprises a supporting frame 73, the bottom end of which is inclined downward after being inclined, and the left side is inclined downward, and the right side is a slot for discharging. The position of the supporting frame 73 when it is inclined during discharging is the middle position of the top end of the direct discharge screen structure 5 of the discharging bin.

[0042] It needs to be explained that the setting of the supporting frame 73 not only can control the speed of the powder product above during discharging, but also can avoid the situation that a large amount of powder product is directly poured onto the screen of the direct discharge screen structure 5 of the discharging bin, which can greatly reduce the damage to the screen and improve its service life, and can also improve the jumping amplitude of the powder product above the screen under the vibration of the discharging bin, which can increase the filtering and separating efficiency of the powder product on the screen, and then improve the overall use effect of the equipment. At the same time, the inclined setting of the supporting frame 73 and its internal structure can make the airflow from top to bottom when the equipment is backflushed, and then the packaging bag can be backflushed when it reaches the inside of the supporting frame 73, so that the residual powder product in the packaging bag can be completely cleaned up, and the subsequent packaging bag taken out from the feeding bin 2 basically does not contain powder product, which greatly improves the cleanliness during the re-feeding process, avoids the dispersion of the residual powder product when the bag is taken out, and ensures the cleanliness of the working environment.

[0043] Please refer to Figure 8 The automatic dosing device for the metering pump for sewage treatment comprises a middle sealing strip 8, which is located at the position of the bottom end of the sealing plate 24 after the sealing cover plate 22 is closed in the long groove track of the support table 1, and the material of the middle sealing strip 8 is flexible and deformable and automatically recoverable. The left side of the middle sealing strip 8 after recovery is completely attached to the sealing cover plate 22 when it is closed.

[0044] It should be noted that the intermediate sealing strip 8 can realize the sealing effect of the long groove track on the support table 1 during the unloading process of the powder product in the device by cooperating with the side sealing plate 24, thereby avoiding the leakage of the powder product from the long groove track when the device is back blowing, so as to ensure the sealing effect of the device during use. The flexible and recoverable material of the intermediate sealing strip 8 can also ensure that the inner support unloading structure 7 does not move when moving in the long groove track, and ensure the normal and effective operation of the whole device.

[0045] Please refer to Figure 5 and 6 The automatic dosing device for the metering pump for sewage treatment comprises a driving structure 9, the driving structure 9 comprises a movable support frame 91 movably arranged in the long groove track in the support table 1, a multi-stage hydraulic telescopic rod 92 is fixedly installed on the movable support frame 91, protruding end heads are arranged on both sides of the movable support frame 91, and a ball is arranged at the bottom end. The right half of the long groove track on the support table 1 is provided with an extension transverse groove matched with the protruding end heads on the movable support frame 91 in the middle of both sides, the telescopic end of the multi-stage hydraulic telescopic rod 92 is fixedly connected with the bottom of the right end of the movable wheel 74, and the position of the telescopic end connected with the bottom end of the right side of the movable wheel 74 is not higher than the upper surface of the support table 1.

[0046] It should be noted that the movable support frame 91 is elongated when moving to the leftmost end of the long groove track, and the protruding end heads on both sides can limit the extension transverse groove to ensure the stability of the movable support frame 91 when the inner support unloading structure 7 moves to the left as a whole. Finally, the inner support unloading structure 7 is inclined to unload under the action of the support guide frame 23, realizing the automatic sealing and unloading function of the device. The fixed connection of the multi-stage hydraulic telescopic rod 92 and the right rotatable movable wheel 74 ensures that the movable wheel 74 does not rotate during normal movement, ensuring the normal transverse movement of the inner support unloading structure 7 as a whole.

[0047] Working principle:

[0048] S1, open the inlet to supplement the material: before opening the sealing cover plate 22, first lift the horizontal rod at the top end of the support guide frame 23 upward, so that the bottom end of the support guide frame 23 is separated from the long groove track of the support table 1, then open the sealing cover plate 22, pull out the inner support unloading structure 7 inside along the long groove track, and hang the packaging bag containing the powder product on the positioning sleeve rod 72.

[0049] S2, closing the inlet to complete the feeding: the inner support under the discharge structure 7 after the completion of the feeding is pushed to the right end inside the warehouse body shell 21, so that the right end of the movable support frame 91 is in contact with the right end of the long groove track, and then the sealing cover plate 22 is closed, and after the closing, the support guide frame 23 automatically falls into the long groove track on the support table 1 under the gravity of itself;

[0050] S3, drive unloading: start the multi-stage hydraulic telescopic rod 92, which moves the inner support under the discharge structure 7 as a whole to the left by pushing the right end of the moving wheel 74, and when the left moving wheel 74 rolls to the bottom arc part of the guide rail 232, it will roll upward along the arc part, so that the relative rotation between the support plate 71 and the top end of the right moving wheel 74 occurs, until the multi-stage hydraulic telescopic rod 92 stops driving after pushing the inner support under the discharge structure 7 to the designated position, at which time the packaged powder product is unloaded into the supporting frame 73, and then discharged from the discharge slot on the supporting frame 73, and the discharged powder product falls onto the screen of the discharge hopper straight screen structure 5 for vibration screening;

[0051] S4, back blowing cleaning: when the gravity sensor on the positioning sleeve rod 72 detects a gravity signal less than a predetermined value, the dust removal fan 4 is started in reverse, so that the airflow at the top of the device is reversed from the original outward discharge to inward blowing, which not only cleans the filter element in the filter device 3, but also blows downward to the opening at the bottom of the packaging bag, thereby cleaning the residual powder product and cleaning the powder product inside the device;

[0052] S5, take out the packaging bag: after unloading, the multi-stage hydraulic telescopic rod 92 is started again, which makes the inner support under the discharge structure 7 change from the inclined position to the horizontal state, and then the operation in S1 is repeated again to feed the powder product and form a cycle.

[0053] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0054] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A metering pump automatic dosing device for sewage treatment, comprising a support table (1), characterized in that: The upper surface of the support table (1) is fixedly installed with an inlet bin (2), the top end of the inlet bin (2) is fixedly installed with a filtering device (3), the top end of the filtering device (3) is fixedly installed with a dust removal fan (4), the lower surface of the support table (1) is fixedly installed with a straight discharge screen structure (5) in communication with the bottom end of the inlet bin (2), one side of the support table (1) is fixedly installed with a controller (6), the both sides of the upper surface of the support table (1) are provided with long groove tracks, the inlet bin (2) is movably provided with an inner support discharging structure (7), the long groove track of the support table (1) is fixedly installed with a middle sealing strip (8), and the inner end of the long groove track is movably installed with a driving structure (9). The inlet bin (2) comprises a bin body shell (21) fixedly installed on the upper surface of the support table (1), the left end of the bin body shell (21) is movably installed with a sealing cover plate (22), the sealing cover plate (22) is movably connected with a support guide frame (23) penetratingly, and the inner surface of the bottom end of the sealing cover plate (22) is fixedly installed with a side sealing plate (24) on both sides. The inner support discharging structure (7) comprises a support plate (71), the top end of the support plate (71) is provided with a positioning sleeve rod (72) on both ends of the left side, the top end of the right side of the support plate (71) is fixedly installed with a supporting frame (73), and the lower surface of the support plate (71) is installed with a moving wheel (74) on the four corners. The driving structure (9) comprises a movable support frame (91) movably arranged in the long groove track in the support table (1), and the movable support frame (91) is fixedly installed with a multi-stage hydraulic telescopic rod (92). The support guide frame (23) comprises an outer extension rod (231) movably connected in the sealing cover plate (22), the bottom end of the right side of the outer extension rod (231) is fixedly installed with a guide rail (232) through a short rod, the outer extension rod (231) is in a vertical state when the sealing cover plate (22) is closed, the position of the guide rail (232) corresponds to the position of the long groove track provided on the support table (1), the guide rail (232) is divided into upper and lower ends, the upper end is a vertical structure, the lower end is a circular arc structure, and the circular arc bottom end of the lower end is tangent to the horizontal plane. The bottom end of the guide rail (232) is provided with a support leg inclined to the left, the guide rail (232) is in a vertical state and the vertical plane where the guide rail (232) is located is located to the right of the vertical plane where the rotating shaft at the top end of the sealing cover plate (22) is located, the right end of the circular arc structure of the guide rail (232) does not exceed the left end position of the whole inner support discharging structure (7) when the inner support discharging structure (7) is pushed to the leftmost end inside the inlet bin (2).

2. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The support guide frame (23) is in a vertical state when the sealing cover plate (22) is closed, is movably arranged in the sealing cover plate (22), and the top end of the support guide frame (23) extends outside the sealing cover plate (22) and is provided with a horizontal rod.

3. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The number of the side sealing plates (24) is four, and each two is a group and is arranged on both sides of the bottom end of the sealing cover plate (22), and the two in each group are arranged at intervals.

4. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The lower surface left side of the supporting plate (71) is fixedly installed with a counterweight, the inside of the positioning sleeve rod (72) is provided with a gravity sensor, and the sensor and the controller (6) are in wireless signal transmission docking, the two mobile wheels (74) are divided into a group, and the mobile wheel (74) located below the positioning sleeve rod (72) on the left side is fixedly connected with the supporting plate (71), and the mobile wheel (74) located below the supporting frame (73) on the right side is movably connected with the supporting plate (71), and the rotating end of the mobile wheel (74) is connected and arranged at the rightmost edge of the lower surface of the supporting plate (71).

5. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The bottom end of the supporting frame (73) is inclined, and the left side is inclined downward, and the right side is a slot for discharging, and the position of the supporting frame (73) when it is inclined is the middle position of the top end of the direct-flow screen structure (5) of the discharging bin.

6. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The position of the intermediate sealing strip (8) in the long groove track of the supporting table (1) is at the position of the bottom end side sealing plate (24) after the sealing cover plate (22) is closed, and the material of the intermediate sealing strip (8) is flexible and deformable and automatically recoverable, and the left side of the intermediate sealing strip (8) after recovery is completely matched with the sealing cover plate (22) when it is closed.

7. The automatic dosing device for metering pump of sewage treatment according to claim 1, characterized in that: The two sides of the movable supporting frame (91) are provided with protruding end heads, and the bottom end is provided with a ball, the right half of the long groove track on the supporting table (1) is provided with an extension horizontal groove matched with the protruding end head of the movable supporting frame (91), the telescopic end of the multi-stage hydraulic telescopic rod (92) is fixedly connected with the bottom of the right end of the mobile wheel (74), and the position of the telescopic end connected with the rotatable mobile wheel (74) right side bottom end is not higher than the upper surface of the supporting table (1).

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