阅读说明：本技术 一种适用于污水检测流量计 (Flowmeter suitable for sewage detection ) 是由 沈必亮 李聪 王晓春 何一军 丁学良 姚文亮 于 2021-07-02 设计创作，主要内容包括：本发明公开了流量测试领域的一种适用于污水检测流量计,包括安装管,所述安装管顶端固定连接有安装箱,所述安装箱顶端贯穿并滑动连接有流量计,注射箱管口对着流量计喷射清洗液,冲刷流量计表面的污渍,同时喷气管间歇的对着流量计表面吹气,吹走流量计表面的污渍,在加快流量计表面污渍的流淌速度的同时,也加快清洗液挥发时间,保证了流量计表面的整洁,提高了流量计的使用寿命,该清洗设备可以自动对流量计进行清洗,工作人员无需经常对流量计拆卸下来进行清洗,只需定期对储存箱内的清洗进行补给即可,操作简单,降低了维修成本。(The invention discloses a flow meter suitable for sewage detection in the field of flow measurement, which comprises an installation pipe, wherein the top end of the installation pipe is fixedly connected with an installation box, the top end of the installation box is penetrated through and is slidably connected with a flow meter, the pipe orifice of an injection box sprays cleaning liquid to the flow meter to wash away stains on the surface of the flow meter, meanwhile, an air injection pipe intermittently blows air to the surface of the flow meter to blow away the stains on the surface of the flow meter, the flowing speed of the stains on the surface of the flow meter is accelerated, the volatilization time of the cleaning liquid is also accelerated, the surface cleanness of the flow meter is ensured, the service life of the flow meter is prolonged, the cleaning equipment can automatically clean the flow meter, a worker does not need to frequently detach the flow meter to clean, only needs to regularly supply cleaning in a storage box, the operation is simple, and the maintenance cost is reduced.)

1. The utility model provides a be applicable to sewage detection flowmeter, includes installation pipe (1), installation pipe (1) top fixedly connected with install bin (2), its characterized in that: the mounting box is characterized in that a flowmeter (3) is connected to the top end of the mounting box (2) in a penetrating and sliding mode, a through hole (4) is formed in the bottom end of the inner side of the mounting box (2) and the mounting pipe (1) together, a sealing mechanism is arranged on the through hole (4), a cylinder (6) is fixedly connected to the top end of the flowmeter (3), the cylinder (6) is fixedly connected to the top end of the mounting box (2), a storage box (7) is fixedly connected to the left end of the mounting box (2), an injection box (8) is fixedly connected to the bottom end of the storage box (7), a first piston (9) is slidably connected to the injection box (8), a first sliding rod (10) is fixedly connected to the left side of the first piston (9), a first check valve is arranged at a port of the injection box (8), a second check valve is arranged in the storage box (7), and the first sliding rod (10) penetrates through the left side of the injection box (8) and is slidably connected, the left end of the first sliding rod (10) is fixedly connected with a connecting plate (11), the top end of the connecting plate (11) is in threaded connection with a threaded rod (12), the threaded rod (12) penetrates through the mounting box (2) and is rotationally connected with the mounting box (2), the right end of the threaded rod (12) is fixedly connected with a first gear (13), the side surface of the first gear (13) is meshed with a first rack (14), the top end of the first rack (14) is fixedly connected with a pushing plate (15), the top end of the pushing plate (15) is fixedly connected with the bottom end of the flowmeter (3), one end, far away from the first rack (14), of the pushing plate (15) is fixedly connected with a second rack (16), the side surface of the second rack (16) is meshed with a second gear (17), the right end is fixedly connected with a second sliding rod (18), the right end of the second sliding rod (18) penetrates through the mounting box (2) and is rotationally connected with the mounting box (2), the device is characterized in that a turntable (19) is fixedly connected to the right end of the second sliding rod (18), an L-shaped pushing block (20) distributed in an array is fixedly connected to the surface of the turntable (19), an air spraying tank (21) is fixedly connected to the right side wall of the installation box (2), a second piston (22) is slidably connected to the air spraying tank (21), a third sliding rod (23) is fixedly connected to the right end of the piston, a first reset spring (24) is fixedly connected to the inner side wall of the second piston (22) and the air spraying tank (21), the third sliding rod (23) penetrates through the air spraying tank (21) and is slidably connected with the air spraying tank (21), an air spraying pipe (25) is fixedly connected to the left end of the air spraying tank (21), the air spraying pipe (25) penetrates through the right side wall of the installation box (2) and is fixedly connected with the installation box (2), and a pushing frame (26) matched with the L-shaped pushing block (20) is fixedly connected to the right end of the third sliding rod (23), the bottom end of the installation box (2) is provided with a cleaning mechanism.

2. The flowmeter for detecting sewage according to claim 1, wherein: the cleaning mechanism comprises a sliding plate (27), a sliding groove (28) is formed in the outer side wall of the installation box (2), the sliding plate (27) is connected to the inner side bottom end face of the installation box (2) in a sliding mode and penetrates through the sliding groove (28), an auxiliary through hole (5) is formed in the top end of the sliding plate (27), the auxiliary through hole (5) is communicated with a through hole (4), a first rotating shaft (29) is symmetrically and fixedly connected to the top end of the sliding plate (27), a cleaning stick (30) is fixedly connected to the top end of the first rotating shaft (29), a first belt (31) is connected to the bottom end of the first rotating shaft (29) in a sliding mode, a second rotating shaft (32) is connected to the bottom end of the inner side wall of the installation box (2) in a rotating mode, a second belt (33) is connected to the top end of the second rotating shaft (32), and a third rotating shaft (34) is connected to the other end of the second belt (33) in a sliding mode, the bottom end of the third rotating shaft (34) is rotatably connected to the top end of the sliding plate (27), the top end of the third rotating shaft (34) is fixedly provided with a stirring blade (35), and the stirring blade (35) is arranged right at the orifice of the injection box (8).

3. The flowmeter for detecting sewage according to claim 1, wherein: first check valve includes first fixed block (36), first fixed block (36) fixed connection is on install bin (2) inside wall, first fixed block (36) right-hand member fixedly connected with first rotation pole (37), first rotation pole (37) both ends symmetry rotation is connected with first rotation piece (38), first torsion spring (39), two have been cup jointed on first rotation pole (37) surface first sealed piece (40) of the common fixedly connected with of first rotation piece (38) right-hand member, first sealed piece (40) are sealed in injection box (8) mouth of pipe department.

4. The flowmeter for detecting sewage according to claim 1, wherein: the second check valve includes connecting rod (41), connecting rod (41) top fixed connection is on the top of injection case (8) inside wall, connecting rod (41) surface sliding connection has the sealed piece of second (42), the sealed piece of second (42) is sealed in bin (7) mouth of pipe department, connecting rod (41) surface has cup jointed second reset spring (43).

5. The flowmeter for detecting sewage according to claim 1, wherein: sealing mechanism includes two second fixed blocks (44), second fixed block (44) fixed connection is on the inside wall of installation pipe (1), two the common fixedly connected with second dwang (45) of second fixed block (44), second dwang (45) surface rotation is connected with second turning block (46), second turning block (46) left side fixedly connected with third seals piece (47), second torsional spring (48) have been cup jointed on second dwang (45) surface.

6. The flowmeter for detecting sewage according to claim 1, wherein: and flanges (49) are symmetrically and fixedly connected to two ends of the mounting pipe (1).

Technical Field

The invention discloses a flow meter suitable for sewage detection in the field of flow test.

Background

In order to monitor the state of fluid in a pipeline, the web wheel type flowmeter, the positive displacement flowmeter and the turbine flowmeter comprise a rotating structure with a magnetic component, a sensor and a processing circuit, wherein the rotating structure is arranged in the pipeline, the sensor and the rotating structure are separated by a certain distance, when the fluid drives the rotating structure, the magnetic field intensity around the magnetic component generates periodic change, the sensor senses the change of the magnetic field intensity to generate pulse type sensing signals, and the processing circuit generates flow according to the pulse type sensing signals.

In the prior art, when sewage is detected, the flowmeter works in the environment for a long time due to the corrosivity contained in the sewage, so that the flowmeter is corroded, the detection precision is reduced, and the service life of the flowmeter is seriously influenced.

Based on the technical scheme, the invention designs the flowmeter suitable for sewage detection to solve the problems.

Disclosure of Invention

The invention aims to provide a flowmeter suitable for sewage detection, and aims to solve the problems that when sewage is detected, the flowmeter is corroded due to the fact that the sewage contains corrosivity, the flowmeter works in the environment for a long time, the detection precision is reduced, and meanwhile the service life of the flowmeter is seriously influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a flowmeter suitable for sewage detection comprises an installation pipe, wherein the top end of the installation pipe is fixedly connected with an installation box, the top end of the installation box is penetrated through and is slidably connected with a flowmeter, the bottom end inside the installation box and the installation pipe are jointly provided with a through hole, the through hole is provided with a sealing mechanism, the top end of the flowmeter is fixedly connected with a cylinder, the cylinder is fixedly connected at the top end of the installation box, the left end of the installation box is fixedly connected with a storage box, the bottom end of the storage box is fixedly connected with an injection box, the injection box is internally and slidably connected with a first piston, the left side of the first piston is fixedly connected with a first slide bar, the injection box is provided with a port provided with a first check valve, a second check valve is arranged in the storage box, the first slide bar penetrates through the left side of the injection box and is slidably connected with the injection box, the left end of the first slide bar is fixedly connected with a connection plate, the top end of the connection plate is in threaded connection with a threaded rod, the threaded rod penetrates through the installation box and is rotationally connected with the installation box, a first gear is fixedly connected at the right end of the threaded rod, a first rack is meshed with the side surface of the first gear, a pushing plate is fixedly connected at the top end of the first rack, the top end of the pushing plate is fixedly connected with the bottom end of the flow meter, a second rack is fixedly connected at one end of the pushing plate, which is far away from the first rack, a second gear is meshed with the side surface of the second rack, a second sliding rod is fixedly connected with the right end of the second rack, the right end of the second sliding rod penetrates through the installation box and is rotationally connected with the installation box, a rotary disc is fixedly connected at the right end of the second sliding rod, L-shaped pushing blocks distributed in an array are fixedly connected on the surface of the rotary disc, an air injection tank is fixedly connected on the right side wall of the installation box, a second piston is slidably connected in the air injection tank, and a third sliding rod is fixedly connected at the right end of the piston, the second piston and the inner side wall of the air injection tank are fixedly connected with a first reset spring together, the third sliding rod penetrates through the air injection tank and is connected with the air injection tank in a sliding mode, the left end of the air injection tank is fixedly connected with an air injection pipe, the air injection pipe penetrates through the right side wall of the installation box and is fixedly connected with the installation box, the right end of the third sliding rod is fixedly connected with a pushing frame matched with the L-shaped pushing block, and the bottom end of the installation box is provided with a cleaning mechanism;

when the device works, in the prior art, when sewage is detected, because the sewage contains corrosivity, the flowmeter works in the environment for a long time, the flowmeter is corroded, the detection precision is reduced, and meanwhile, the service life of the flowmeter is seriously influenced, through the arrangement of the air cylinder, when the telescopic rod of the air cylinder moves downwards, the sealing mechanism is opened, the flowmeter enters the installation pipe through the through hole to detect the sewage, meanwhile, the pushing plate moves downwards to drive the first rack and the second rack to move downwards, under the mutual meshing action of the first rack, the second rack, the first gear and the second gear start to rotate, the threaded rod is rotated by the first gear, the connecting plate drives the first sliding rod to move towards the left side through the screw action, the first piston moves towards the left side, and under the action of the first check valve and the second check valve, the cleaning liquid in the storage box is sucked into the injection box, the second slide bar is rotated through the rotation of the second gear, the turntable is driven to rotate, the L-shaped pushing block is rotated and pushes the pushing frame to move leftwards, the third slide bar and the second piston are driven to move leftwards, the second reset spring is compressed, after the L-shaped pushing block is separated from the pushing frame, the piston and the third slide bar are reset under the action of the first reset spring, so that the air injection pipe can intermittently inject air to the flow meter to blow away dust and impurities on the surface of the flow meter, the cleanness and tidiness of the flow meter are kept, after the detection is finished, the telescopic rod of the air cylinder is moved upwards, the flow meter is moved upwards, the sealing mechanism is closed, the sewage is prevented from entering the installation box to pollute the equipment, meanwhile, under the same working state, the threaded rod rotates reversely, the connecting plate moves rightwards, and the first piston of the first slide bar is driven to move rightwards, under the action of the first one-way valve and the second one-way valve, the nozzle of the injection box sprays cleaning liquid towards the flowmeter to wash away stains on the surface of the flowmeter, meanwhile, the air injection pipe intermittently blows air towards the surface of the flowmeter to blow away the stains on the surface of the flowmeter, the flowing speed of the stains on the surface of the flowmeter is increased, the volatilization time of the cleaning liquid is also increased, the tidiness of the surface of the flowmeter is ensured, the service life of the flowmeter is prolonged, the cleaning equipment can automatically clean the flowmeter, workers do not need to frequently disassemble the flowmeter for cleaning, only need to regularly supply the cleaning in the storage box, the operation is simple, the maintenance cost is reduced, the problems that in the prior art, when the sewage is detected, the flowmeter works in such an environment for a long time due to the corrosivity in the sewage, the flowmeter is corroded, and the detection precision is reduced are solved, the service life of the flowmeter is seriously influenced.

As a further scheme of the invention, the cleaning mechanism comprises a sliding plate, the outer side wall of the installation box is provided with a sliding groove, the sliding plate is connected on the bottom end surface of the inner side of the installation box in a sliding way and penetrates through the sliding chute, the top end of the sliding plate is provided with an auxiliary through hole, the auxiliary through hole is communicated with the through hole, the top end of the sliding plate is symmetrically and fixedly connected with a first rotating shaft, the top end of the first rotating shaft is fixedly connected with a cleaning stick, the bottom end of the first rotating shaft is connected with a first belt in a sliding way, the other end of the first belt is connected with a second rotating shaft in a sliding way, the bottom end of the second rotating shaft is rotatably connected with the bottom end of the inner side wall of the installation box, the top end of the second rotating shaft is connected with a second belt in a sliding way, the other end of the second belt is connected with a third rotating shaft in a sliding way, the bottom end of the third rotating shaft is rotatably connected with the top end of the sliding plate, a stirring blade is fixed at the top end of the third rotating shaft and is right to the pipe orifice of the injection box; when the cleaning device is in work, because the cleaning liquid is sprayed by a single surface, the back surface of the flow meter is not sprayed, the cleaning is not clean, the cleaning effect is reduced, and the service life of the flow meter is reduced, by arranging the cleaning mechanism, when the injection box starts to spray, the stirring blade is driven by high-pressure water flow, the third rotating shaft is driven to rotate, the second rotating shaft is driven to rotate by the transmission action of the second belt, the cleaning rod is driven to rotate by the transmission action of the first belt, the surface of the flow meter is cleaned, the cleaning range is enlarged, the cleaning dead angle is avoided, the cleaning effect is improved, in addition, the cleaning rod and the stains on the surface of the sliding plate can be conveniently and manually replaced and cleaned by the arranged sliding plate and the sliding chute, the cleanness and the tidiness of the device are ensured, the problem that the cleaning liquid is sprayed by a single surface when the cleaning liquid is sprayed, the back surface of the flow meter is not sprayed, and the cleaning is not clean is solved, reduce the cleaning effect and reduce the service life of the flowmeter.

As a further scheme of the invention, the first one-way valve comprises a first fixed block, the first fixed block is fixedly connected to the inner side wall of the installation box, the right end of the first fixed block is fixedly connected with a first rotating rod, two ends of the first rotating rod are symmetrically and rotatably connected with first rotating blocks, the surface of the first rotating rod is sleeved with a first torsion spring, the right ends of the two first rotating blocks are fixedly connected with a first sealing block together, and the first sealing block is sealed at the pipe orifice of the injection box; the during operation, when the injection box absorbs the washing liquid, under the effect of suction, first sealed piece is sealed with the injection box mouth of pipe, the washing liquid can enter into the injection box in, when the injection box injects the washing liquid, under the effect of high-pressure rivers, first sealed piece upwards overturns, first torsion spring is compressed, the washing liquid can be released away, and clear up the flowmeter, after the washing, under the effect of first torsion spring, first sealed piece resets, it is sealed with the injection box mouth of pipe again, guaranteed that the absorption of washing liquid and this operating condition of injection can stably go on.

As a further scheme of the invention, the second one-way valve comprises a connecting rod, the top end of the connecting rod is fixedly connected to the top end of the inner side wall of the injection box, the surface of the connecting rod is connected with a second sealing block in a sliding manner, the second sealing block is sealed at the pipe orifice of the storage box, and the surface of the connecting rod is sleeved with a second return spring; the during operation, when the injection box absorbs the washing liquid, under the effect of suction, the sealed piece downstream of second, break away from the bin mouth of pipe, second reset spring is compressed, the washing liquid can enter into the injection box, when the injection box injects the washing liquid, under pressure and second reset spring's combined action, the sealed piece of second will the upward movement, it is sealed with the bin mouth of pipe again, the washing liquid can be followed the injection box mouth of pipe and released away, and clear up the flowmeter, the absorption of washing liquid and this operating condition of injection have been guaranteed

As a further scheme of the invention, the sealing mechanism comprises two second fixed blocks, the second fixed blocks are fixedly connected to the inner side wall of the installation pipe, the two second fixed blocks are jointly and fixedly connected with a second rotating rod, the surface of the second rotating rod is rotatably connected with a second rotating block, the left side of the second rotating block is fixedly connected with a third sealing block, and the surface of the second rotating rod is sleeved with a second torsion spring; the during operation, when the flowmeter moves to the time, through the sealed piece of flowmeter extrusion third, make the sealed piece upset of third, the second torsional spring is compressed, and the through-hole is opened, and the flowmeter gets into and detects sewage in the installation pipe, and when the flowmeter up motion, under the effect of second torsional spring, the sealed piece of third resets, and is sealed with the through-hole again, avoids in the sewage flows the install bin, pollution equipment, guarantees clean and tidy in the install bin.

As a further scheme of the invention, two ends of the installation pipe are symmetrically and fixedly connected with flange plates; when the sewage treatment device works, the sewage pipelines are connected and installed through the flange plate, so that the sewage treatment device is convenient to install and disassemble.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, through the L-shaped pushing block and the pushing frame of the injection tank turntable of the storage box, when the detection is finished and the telescopic rod of the cylinder is moved upwards, the flowmeter moves upwards, the sealing mechanism is closed, sewage is prevented from entering the installation box to pollute the equipment, meanwhile, under the same working state, the threaded rod rotates reversely, the connecting plate moves rightwards and drives the first piston of the first sliding rod to move rightwards, under the action of the first one-way valve and the second one-way valve, the nozzle of the injection tank sprays cleaning liquid to the flowmeter to wash away stains on the surface of the flowmeter, meanwhile, the air injection pipe intermittently faces to the surface of the flowmeter to blow air to remove the stains on the surface of the flowmeter, the flowing speed of the stains on the surface of the flowmeter is accelerated, the volatilization time of the cleaning liquid is also accelerated, the cleanness of the surface of the flowmeter is ensured, the service life of the flowmeter is prolonged, and the cleaning equipment can automatically clean the flowmeter, staff need not often to dismantle the flowmeter and wash, only need regularly to the washing in the bin carry out the supply can, easy operation has reduced cost of maintenance.

2. According to the cleaning mechanism, when the injection box starts to spray, the stirring blade is driven through high-pressure water flow, the third rotating shaft is rotated, the second rotating shaft is rotated through the transmission action of the second belt, the cleaning rod is rotated through the transmission action of the first belt, the surface of the flowmeter is cleaned, the cleaning range is expanded, the cleaning dead angle is avoided, the cleaning effect is improved, the cleaning rod and stains on the surface of the sliding plate can be conveniently replaced and cleaned manually through the arranged sliding plate and the arranged sliding groove, the cleanness and tidiness of equipment are ensured, and the problems that the cleaning fluid is sprayed on a single surface when being sprayed, the back surface of the flowmeter is not sprayed, the cleaning is not clean, the cleaning effect is reduced, and the service life of the flowmeter is shortened are solved.

Drawings

In order 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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a first schematic view of the overall structure of the present invention;

FIG. 2 is a second schematic view of the overall structure of the present invention;

FIG. 3 is a first cross-sectional view of the mounting box of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a second cross-sectional view of the mounting box of the present invention;

FIG. 6 shows a cross-sectional view of the injection box of the present invention;

FIG. 7 is an enlarged view of FIG. 6 at B;

FIG. 8 is a cross-sectional view of a jet canister of the present invention;

FIG. 9 is a cross-sectional view of the mounting tube of the present invention;

FIG. 10 is an enlarged view at C of FIG. 9;

FIG. 11 is a view showing the connection of the cleaning mechanism according to the present invention;

FIG. 12 is an enlarged view of FIG. 11 at D;

in the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a mounting pipe 1, a mounting box 2, a flowmeter 3, a through hole 4, an auxiliary through hole 5, a cylinder 6, a storage box 7, an injection box 8, a first piston 9, a first slide rod 10, a connecting plate 11, a threaded rod 12, a first gear 13, a first rack 14, a pushing plate 15, a second rack 16, a second gear 17, a second slide rod 18, a rotary disc 19, an L-shaped pushing block 20, an air injection tank 21, a second piston 22, a third slide rod 23, a first return spring 24, an air injection pipe 25 pushing frame 26, a sliding plate 27, a sliding chute 28, a first rotary shaft 29, a cleaning stick 30, a first belt 31, a second rotary shaft 32, a second belt 33, a third rotary shaft 34, a poking blade 35, a first fixing block 36, a first rotary rod 37, a first rotary block 38, a first torsion spring 39, a first sealing block 40, a connecting rod 41, a second sealing block 42, a second return spring 43, a second rotary rod 44, a second fixing block 45, a second rotary block 46, A third sealing block 47, a second torsion spring 48 and a flange 49.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution: a flowmeter 3 suitable for sewage detection comprises an installation pipe 1, the top end of the installation pipe 1 is fixedly connected with an installation box 2, the top end of the installation box 2 is penetrated through and is slidably connected with a flowmeter 3, the bottom end inside the installation box 2 and the installation pipe 1 are jointly provided with a through hole 4, the through hole 4 is provided with a sealing mechanism, the top end of the flowmeter 3 is fixedly connected with a cylinder 6, the cylinder 6 is fixedly connected with the top end of the installation box 2, the left end of the installation box 2 is fixedly connected with a storage box 7, the bottom end of the storage box 7 is fixedly connected with an injection box 8, the injection box 8 is slidably connected with a first piston 9, the left side of the first piston 9 is fixedly connected with a first slide bar 10, the injection box 8 is provided with a port provided with a first check valve, a second check valve is arranged in the storage box 7, the first slide bar 10 penetrates through the left side of the injection box 8 and is slidably connected, the left end of the first slide bar 10 is fixedly connected with a connecting plate 11, the top end of the connecting plate 11 is in threaded connection with a threaded rod 12, the threaded rod 12 penetrates through the installation box 2 and is rotatably connected with the installation box 2, the right end of the threaded rod 12 is fixedly connected with a first gear 13, the side surface of the first gear 13 is meshed with a first rack 14, the top end of the first rack 14 is fixedly connected with a pushing plate 15, the top end of the pushing plate 15 is fixedly connected with the bottom end of the flowmeter 3, one end, away from the first rack 14, of the pushing plate 15 is fixedly connected with a second rack 16, the side surface of the second rack 16 is meshed with a second gear 17, the right end is fixedly connected with a second slide bar 18, the right end of the second slide bar 18 penetrates through the installation box 2 and is rotatably connected with the installation box 2, the right end of the second slide bar 18 is fixedly connected with a rotary table 19, the surface of the rotary table 19 is fixedly connected with L-shaped pushing blocks 20 distributed in an array manner, the right side wall of the installation box 2 is fixedly connected with an air injection tank 21, the air injection tank 21 is slidably connected with a second piston 22, and the right end of the piston is fixedly connected with a third slide bar 23, the second piston 22 and the inner side wall of the air injection tank 21 are fixedly connected with a first reset spring 24 together, a third slide bar 23 penetrates through the air injection tank 21 and is connected with the air injection tank 21 in a sliding manner, the left end of the air injection tank 21 is fixedly connected with an air injection pipe 25, the air injection pipe 25 penetrates through the right side wall of the installation box 2 and is fixedly connected with the installation box 2, the right end of the third slide bar 23 is fixedly connected with a pushing frame 26 matched with the L-shaped pushing block 20, and the bottom end of the installation box 2 is provided with a cleaning mechanism;

during operation, in the prior art, when sewage is detected, the flowmeter 3 works in such an environment for a long time due to corrosivity in the sewage, the flowmeter 3 is corroded, the detection precision is reduced, and the service life of the flowmeter 3 is seriously influenced, by arranging the air cylinder 6, when the telescopic rod of the air cylinder 6 moves downwards, the sealing mechanism is opened, the flowmeter 3 enters the installation pipe 1 through the through hole 4 to detect the sewage, meanwhile, the pushing plate 15 moves downwards to drive the first rack 14 and the second rack 16 to move downwards, under the mutual meshing action of the first rack 14, the second rack 16 and the first gear 13, the first gear 13 and the second gear 17 start to rotate, the threaded rod 12 is rotated by the first gear 13, the connecting plate 11 drives the first slide rod 10 to move towards the left side through the screw thread action, the first piston 9 moves towards the left side, through the action of the first one-way valve and the second one-way valve, the cleaning liquid in the storage tank 7 is sucked into the injection box 8, the second sliding rod 18 is rotated through the second gear 17, the rotary disc 19 is driven to rotate, the L-shaped pushing block 20 is rotated, the pushing frame 26 is pushed, the pushing frame 26 is moved leftwards, the third sliding rod 23 and the second piston 22 are driven to move leftwards, the second return spring 43 is compressed, after the L-shaped pushing block 20 is separated from the pushing frame 26, the piston and the third sliding rod 23 are reset under the action of the first return spring 24, so that the air injection pipe 25 can intermittently inject air to the flowmeter 3 to blow away dust and sundries on the surface of the flowmeter 3, the cleanness and tidiness of the flowmeter 3 are kept, when the telescopic rod of the air cylinder 6 moves upwards after detection is finished, the flowmeter 3 moves upwards, the sealing mechanism is closed, and sewage is prevented from entering the installation box 2, the equipment is polluted, simultaneously under the same working condition, the threaded rod 12 rotates reversely, the connecting plate 11 moves rightwards and drives the first piston 9 of the first slide rod 10 to move rightwards, under the action of the first one-way valve and the second one-way valve, the pipe orifice of the injection box 8 sprays cleaning liquid to the flowmeter 3 to wash away stains on the surface of the flowmeter 3, the air injection pipe 25 intermittently blows air to the surface of the flowmeter 3 to blow away the stains on the surface of the flowmeter 3, the flowing speed of the stains on the surface of the flowmeter 3 is accelerated, the volatilization time of the cleaning liquid is also accelerated, the cleanness of the surface of the flowmeter 3 is ensured, the service life of the flowmeter 3 is prolonged, the cleaning equipment can automatically clean the flowmeter 3, a worker does not need to frequently detach the flowmeter 3 to clean, only needs to regularly supply cleaning in the storage box 7, the operation is simple, and the maintenance cost is reduced, the problem of among the prior art, when detecting to sewage, because contain corrosivity in the sewage, flowmeter 3 works in such environment for a long time, can lead to flowmeter 3 to suffer the corruption, when reducing the detection precision, has seriously influenced flowmeter 3's life is solved.

As a further scheme of the invention, the cleaning mechanism comprises a sliding plate 27, a sliding groove 28 is formed in the outer side wall of the installation box 2, the sliding plate 27 is slidably connected to the bottom end face of the inner side of the installation box 2 and penetrates through the sliding groove 28, an auxiliary through hole 5 is formed in the top end of the sliding plate 27, the auxiliary through hole 5 is communicated with a through hole 4, the top end of the sliding plate 27 is symmetrically and fixedly connected with a first rotating shaft 29, the top end of the first rotating shaft 29 is fixedly connected with a cleaning stick 30, the bottom end of the first rotating shaft 29 is slidably connected with a first belt 31, the other end of the first belt 31 is slidably connected with a second rotating shaft 32, the bottom end of the second rotating shaft 32 is rotatably connected to the bottom end of the inner side wall of the installation box 2, the top end of the second rotating shaft 32 is slidably connected with a second belt 33, the other end of the second belt 33 is slidably connected with a third rotating shaft 34, the bottom end of the third rotating shaft 34 is rotatably connected to the top end of the sliding plate 27, a toggle blade 35 is fixedly arranged at the top end of the third rotating shaft 34, and the toggle blade 35 is right of the nozzle of the injection box 8; when the cleaning device works, because the cleaning liquid is sprayed by a single surface, the back surface of the flowmeter 3 is not sprayed, so that the cleaning is not clean, the cleaning effect is reduced, and the service life of the flowmeter 3 is reduced, by arranging the cleaning mechanism, when the injection box 8 starts to spray, the stirring blade 35 is driven by high-pressure water flow, the third rotating shaft 34 is rotated, the second rotating shaft 32 is rotated by the transmission action of the second belt 33, the cleaning stick 30 is rotated by the transmission action of the first belt 31, the surface of the flowmeter 3 is cleaned, the cleaning range is enlarged, the cleaning dead angle is avoided, the cleaning effect is improved, and by arranging the sliding plate 27 and the sliding groove 28, the dirt on the surfaces of the cleaning stick 30 and the sliding plate 27 can be conveniently replaced and cleaned manually, the cleanness and tidiness of the device are ensured, the problem that the back surface of the flowmeter 3 is not sprayed by the single surface when the cleaning liquid is sprayed is solved, resulting in unclean cleaning, reduced cleaning effect, and reduced service life of the flow meter 3.

As a further scheme of the present invention, the first check valve includes a first fixed block 36, the first fixed block 36 is fixedly connected to the inner side wall of the installation box 2, the right end of the first fixed block 36 is fixedly connected with a first rotating rod 37, two ends of the first rotating rod 37 are symmetrically and rotatably connected with first rotating blocks 38, the surface of the first rotating rod 37 is sleeved with a first torsion spring 39, the right ends of the two first rotating blocks 38 are fixedly connected with a first sealing block 40 together, and the first sealing block 40 is sealed at the pipe orifice of the injection box 8; the during operation, when injection box 8 absorbs the washing liquid, under the effect of suction, first sealed piece 40 is sealed with the 8 mouths of pipe of injection box, the washing liquid can enter into injection box 8 in, when injection box 8 injects the washing liquid, under the effect of high-pressure rivers, first sealed piece 40 upwards overturns, first torsion spring 39 is compressed, the washing liquid can be released, and clear up flowmeter 3, after the washing, under the effect of first torsion spring 39, first sealed piece 40 resets, seal the 8 mouths of pipe of injection box again, the absorption of washing liquid and this operating condition of injection thereof can stably go on have been guaranteed.

As a further scheme of the invention, the second check valve comprises a connecting rod 41, the top end of the connecting rod 41 is fixedly connected to the top end of the inner side wall of the injection box 8, the surface of the connecting rod 41 is slidably connected with a second sealing block 42, the second sealing block 42 is sealed at the pipe orifice of the storage box 7, and the surface of the connecting rod 41 is sleeved with a second return spring 43; during operation, when injection box 8 absorbs the washing liquid, under the effect of suction, the sealed piece 42 downstream of second, break away from the bin 7 mouth of pipe, second reset spring 43 is compressed, the washing liquid can enter into injection box 8 in, when injection box 8 injects the washing liquid, under the combined action of pressure and second reset spring 43, the sealed piece 42 of second will the upward movement, it is sealed with bin 7 mouth of pipe again, the washing liquid can be released from the 8 mouths of pipe of injection box, and clear up flowmeter 3, guaranteed the absorption of washing liquid and this operating condition of injection thereof

As a further scheme of the present invention, the sealing mechanism includes two second fixed blocks 44, the second fixed blocks 44 are fixedly connected to the inner side wall of the installation pipe 1, the two second fixed blocks 44 are jointly and fixedly connected with a second rotating rod 45, the surface of the second rotating rod 45 is rotatably connected with a second rotating block 46, the left side of the second rotating block 46 is fixedly connected with a third sealing block 47, and the surface of the second rotating rod 45 is sleeved with a second torsion spring 48; the during operation, when flowmeter 3 when to the time motion, extrude the sealed piece 47 of third through flowmeter 3, make the sealed piece 47 upset of third, second torsional spring 48 is compressed, through-hole 4 is opened, 3 the interior sewage that detects of flowmeter entering installation pipe 1, when flowmeter 3 upward motion, under second torsional spring 48's effect, the sealed piece 47 of third resets, it is sealed with through-hole 4 again, avoid in the sewage flows to install bin 2, pollution equipment, guarantee the clean and tidy in the install bin 2.

As a further scheme of the invention, two ends of the installation pipe 1 are symmetrically and fixedly connected with flange plates 49; when the sewage treatment device works, the sewage pipelines are connected and installed through the flange plate 49, so that the sewage treatment device is convenient to install and disassemble.

The working principle is as follows: by arranging the air cylinder 6, when the telescopic rod of the air cylinder 6 moves downwards, the sealing mechanism is opened, the flowmeter 3 enters the installation pipe 1 through the through hole 4 to detect sewage, meanwhile, the pushing plate 15 moves downwards to drive the first rack 14 and the second rack 16 to move downwards, under the mutual meshing action of the first rack 14, the second rack 16, the first gear 13 and the second gear 17 of the first gear 13, the first gear 13 enables the threaded rod 12 to rotate, the connecting plate 11 drives the first slide rod 10 to move towards the left side through the thread action, the first piston 9 moves towards the left side, through the action of the first one-way valve and the second one-way valve, the cleaning solution in the storage tank 7 is sucked into the injection box 8, the second gear 17 rotates, the second slide rod 18 rotates, the rotary disc 19 is driven to rotate, the L-shaped pushing block 20 rotates, and the pushing frame 26 is pushed, the pushing frame 26 is moved leftwards, the third sliding rod 23 and the second piston 22 are driven to move leftwards, the second return spring 43 is compressed, after the L-shaped pushing block 20 is separated from the pushing frame 26, the piston and the third sliding rod 23 are reset under the action of the first return spring 24, so that the air injection pipe 25 can intermittently inject air towards the flowmeter 3 to blow away dust and impurities on the surface of the flowmeter 3 and keep the flowmeter 3 clean and tidy, after detection is finished, the telescopic rod of the air cylinder 6 moves upwards, the flowmeter 3 moves upwards, the sealing mechanism is closed to prevent sewage from entering the mounting box 2 to pollute equipment, meanwhile, under the same working state, the threaded rod 12 rotates reversely, the connecting plate 11 moves rightwards and drives the first piston 9 of the first sliding rod 10 to move rightwards, under the action of the first check valve and the second check valve, the pipe orifice of the injection box 8 sprays cleaning liquid towards the flowmeter 3, and (3) washing stains on the surface of the flowmeter (3), and simultaneously intermittently blowing air towards the surface of the flowmeter (3) by the air jet pipe (25) to blow away the stains on the surface of the flowmeter (3).

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.