Tank door locking device of suction-type sewer scavenger

Abstract

The utility model relates to the technical field of sewage suction trucks and discloses a tank door locking device of a sewage suction truck, which comprises a sewage storage tank, a tank door pipe is fixedly sleeved on the upper portion of an inner cavity of the sewage storage tank, a first annular groove is arranged at the top of an inner cavity of the tank door pipe, a second annular groove is arranged at the bottom of the first annular groove, and a third annular groove is arranged at the bottom of the second annular groove. The upper portion of the tank door pipe is movably connected with a cover plate through a shaft, a fixing plate is fixedly installed at the bottom of the cover plate and matched with the first annular groove, an air pump is fixedly installed on the upper portion of the cover plate, a first pipeline is arranged in the cover plate and the fixing plate, and the upper end of the first pipeline is fixedly connected with the air pump. A fixing ring is fixedly installed at the bottom of the fixing plate, air is inflated into the rubber air bag through the air pump, so that the rubber air bag is connected with the third annular groove in a clamped mode, the gap between the sewage storage tank and the cover plate is reduced, the air tightness of the sewage storage tank is improved, foul smell generated by sewage breeding and leakage of bacteria are avoided, and pollution to the surrounding environment is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sewage suction truck technical field especially relates to a sewage suction truck's tank door locking device. BACKGROUND

[0002] The sewage suction truck is a new type of sanitation vehicle for collecting, transferring, cleaning and transporting sludge and sewage to avoid secondary pollution. The sewage suction truck can suck and discharge by itself, has fast working speed, large capacity and convenient transportation, and is suitable for collecting and transporting liquid substances such as excrement, slurry and crude oil. The sewage suction truck adopts a domestic leading sewage suction truck vacuum pump, has large suction force and long suction distance, and is particularly suitable for sucking, transporting and discharging accumulated substances in sewers, especially large objects such as sewer slurry, silt, stones and bricks.

[0003] In the prior art, during the operation of the sewage suction truck, the gap between the tank door and the cover plate is large, which causes poor air tightness of the tank door, adversely affects the stability of the tank after being closed, and causes the sewage in the tank of the sewage suction truck to breed fumes and bacteria, which are easy to leak during vehicle transportation, causing great pollution to the surrounding environment. Therefore, to solve the above problems, the utility model provides a sewage suction truck tank door locking device. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a sewage suction truck tank door locking device. When the cover plate is closed, the air pump fills the rubber air bag with gas, so that the rubber air bag is connected with the annular groove three clamps after inflation and expansion, the gap between the sludge storage tank and the cover plate is reduced, the air tightness of the sludge storage tank after being closed is improved, the stability of the tank after being closed is greatly improved, the fumes and bacteria generated by the breeding of the sewage during vehicle transportation are avoided, and pollution to the surrounding environment is prevented.

[0005] The utility model provides following technical scheme: a tank door locking device of sewage suction truck, including the sewage storage tank, the sewage storage tank inner chamber upper portion fixedly suiting has the tank door pipe, the tank door pipe inner chamber top is provided with annular groove no.

[0006] Preferably, the fixing plate side is uniformly provided with grooves, the number of grooves is six, the grooves are fixedly installed with electric push rods, the electric push rods are fixedly installed with moving blocks on the telescopic shafts, the annular groove side is uniformly provided with limit grooves, the number of limit grooves is six and is respectively connected with the moving blocks, the telescopic end of electric push rod is driven to move by starting, the moving block is connected with the limit groove, the stability of tank body and cover plate after closing is greatly improved.

[0007] Preferably, the right side of the pipeline is provided with a pipeline, the upper part of the cover plate is fixedly installed with a pressure relief valve, the pressure relief valve is fixedly connected with the top end of the pipeline, the upper part of the pressure relief valve is fixedly installed with a gas pressure gauge, the upper part of the pressure relief valve is fixedly installed with an exhaust pipe, the upper part of the cover plate is fixedly installed with a handrail in front of the pressure relief valve, the pressure relief valve can be adjusted when the pressure in the sewage storage tank exceeds the safety value, the risk of explosion of the sewage storage tank is reduced, and the safety of the sewage suction truck is improved.

[0008] Preferably, the upper part of the sewage storage tank is fixedly installed with a bottom plate, the upper part of the bottom plate is fixedly installed with a filter, the other end of the exhaust pipe is fixedly connected with the inner cavity of the filter, the inner cavity of the filter is fixedly installed with a partition, and the partition is provided with a through hole, the filter can absorb and filter the gas generated by the sewage in the sewage storage tank in time, and the surrounding environment is not affected by the direct discharge of the gas.

[0009] Preferably, clean water is arranged in the filter cavity and located in the front left of the partition, a water inlet is arranged in the upper part of the filter and located in the front of the clean water, and a water outlet is arranged in the left part of the filter and located in the front left of the clean water, so that the ammonia gas can be absorbed by the clean water, the clean water after absorbing the ammonia gas can be recycled by opening the water outlet, the recycling efficiency is improved, and good environmental protection benefits are achieved.

[0010] Preferably, a dry filter plate is fixedly installed in the filter cavity and located in the front right of the partition, an activated carbon filter plate is fixedly installed in the filter cavity and located in the front right of the dry filter plate, an air outlet is arranged in the upper part of the filter and located in the front right of the water inlet, a support seat is fixedly installed at the bottom of the sewage storage tank, and a transport vehicle is fixedly installed at the bottom of the support seat, so that the water vapor in the gas is filtered by the dry filter plate, and the residual waste gas in the gas is absorbed by the activated carbon filter plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1、In the closing of the cover plate, make fixed plate and annular groove 1 fit, and fixed ring is located in annular groove 2, start electric push rod and make its telescopic end drive moving block movement, make moving block and limit groove realize the joint between, open air pump again and fill in gas in fixed ring inner chamber through pipeline 1, air enters rubber air bag after passing through fixed ring, utilize the good characteristic of rubber air bag contraction, make rubber air bag after inflation and annular groove 3 card joint, and reduce the gap between annular groove 3, be favorable to improve the air tightness of sewage storage tank body after closing, make the stability of tank body after closing greatly improve, avoid the leakage of dirt breeding turbidity and bacteria etc. in the vehicle transportation process, prevent the pollution to surrounding environment.

[0013] 2、When the gas pressure in the sewage storage tank cavity will exceed the safe value, open the pressure relief valve to make the gas discharge into the filter, the ammonia gas is absorbed after passing through the clean water, then the gas enters the right part of the filter cavity through the through hole, and is discharged from the air outlet after passing through the dry filter plate and the activated carbon filter plate in turn, avoiding the direct release of strong pungent gas by the suction truck, preventing the continuous increase of the gas pressure in the sewage storage tank cavity, effectively reducing the risk of explosion of the sewage storage tank, improving the safety during the operation of the suction truck, and recycling the clean water after absorbing the ammonia gas by opening the water outlet, improving the recycling efficiency, and having good environmental protection benefits. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an external structure schematic view of the utility model;

[0015] Figure 2 It is a sealing structure schematic view of the utility model;

[0016] Figure 3For the utility model Figure 2 Amplified schematic view at A in the middle;

[0017] Figure 4 For the utility model cover plate locking structure schematic diagram;

[0018] Figure 5 For the utility model filter structure schematic diagram.

[0019] In the figure: 1, the pollution storage tank;2, the tank door pipe;3, annular groove one;4, annular groove two;5, annular groove three;6, cover plate;7, fixed plate;8, air pump;9, pipeline one;10, fixed ring;11, rubber air bag;12, recess;13, electric push rod;14, moving block;15, limit groove;16, pipeline two;17, pressure relief valve;18, air pressure gauge;19, exhaust pipe;20, handrail;21, bottom plate;22, filter;23, partition;24, through opening;25, clean water;26, water inlet;27, drain outlet;28, dry filter plate;29, activated carbon filter plate;30, exhaust port;31, support seat;32, transport vehicle. Specific embodiments

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-5The utility model provides a kind of tank door locking device of sewage suction truck, including sewage storage tank 1, the upper part of the inner cavity of sewage storage tank 1 is fixedly sleeved with tank door pipe 2, annular groove one 3 is opened in the top of the inner cavity of tank door pipe 2, annular groove two 4 is opened in the bottom of annular groove one 3, annular groove three 5 is opened in the bottom of annular groove two 4, cover plate 6 is movably connected on the upper part of tank door pipe 2 by shaft, fixed plate 7 is fixedly installed in the bottom of cover plate 6, fixed plate 7 and annular groove one 3 mutually fit, air pump 8 is fixedly installed on the upper part of cover plate 6, pipeline one 9 is opened in cover plate 6 and fixed plate 7, the upper end of pipeline one 9 is fixedly connected with air pump 8, fixed ring 10 is fixedly installed in the bottom of fixed plate 7, the inner cavity of fixed ring 10 is fixedly connected with the bottom end of pipeline one 9, fixed ring 10 and annular groove two 4 mutually fit, rubber air bag 11 is fixedly installed in the bottom of the inner cavity of fixed ring 10, rubber air bag 11 is clamped with annular groove three 5, recess 12 is evenly opened in the side of fixed plate 7, the number of recess 12 is six, electric push rod 13 is fixedly installed in recess 12, moving block 14 is fixedly installed on the telescopic shaft of electric push rod 13, limit slot 15 is evenly opened in the side of annular groove one 3, the number of limit slot 15 is six and respectively clamped with moving block 14, close cover plate 6, so that fixed plate 7 and annular groove one 3 mutually fit, and fixed ring 10 is located in annular groove two 4, start electric push rod 13 to make its telescopic end drive moving block 14 to move, so that moving block 14 and limit slot 15 realize clamping, then open air pump 8 and fill gas in the inner cavity of fixed ring 10 by pipeline one 9, air enters rubber air bag 11 after passing through fixed ring 10, by the characteristics of good contractility of rubber air bag 11, so that rubber air bag 11 is clamped with annular groove three 5 after inflation, and the gap between rubber air bag 11 and annular groove three 5 is reduced, which is beneficial to improve the air tightness of sewage storage tank 1 after closing, so that the stability of tank body after closing is greatly improved, avoid the leakage of sewage breeding miasma and bacteria during vehicle transportation, prevent pollution to the surrounding environment;

[0022] The pipeline one 9 is provided with a pipeline two 16 in the right direction, the upper part of the cover plate 6 is fixedly installed with a pressure relief valve 17 in the right direction of the air pump 8, the pressure relief valve 17 is fixedly connected with the top end of the pipeline two 16, the upper part of the pressure relief valve 17 is fixedly installed with an air pressure gauge 18, the upper part of the pressure relief valve 17 is fixedly installed with an exhaust pipe 19 in the right direction of the air pressure gauge 18, the upper part of the cover plate 6 is fixedly installed with a handrail 20 in front of the pressure relief valve 17, the upper part of the sewage storage tank 1 is fixedly installed with a bottom plate 21 in the right direction of the tank door pipe 2, the upper part of the bottom plate 21 is fixedly installed with a filter 22, the other end of the exhaust pipe 19 is fixedly sleeved on the upper part of the inner cavity of the filter 22, the inner cavity of the filter 22 is fixedly installed with a partition plate 23 in the middle, the partition plate 23 is provided with a through hole 24, the inner cavity of the filter 22 is provided with clean water 25 in the left direction of the partition plate 23, the upper part of the filter 22 is provided with a water inlet 26 in the upper direction of the clean water 25, the left part of the filter 22 is provided with a water outlet 27 in the left direction of the clean water 25, the inner cavity of the filter 22 is fixedly installed with a dry filter plate 28 in the right direction of the partition plate 23, the inner cavity of the filter 22 is fixedly installed with an activated carbon filter plate 29 in the right direction of the dry filter plate 28, the upper part of the filter 22 is provided with an exhaust port 30 in the right direction of the water inlet 26, the bottom of the sewage storage tank 1 is fixedly installed with a support seat 31, the bottom of the support seat 31 is fixedly installed with a transport vehicle 32, in the moving process of the transport vehicle 32, the sewage stored in the sewage storage tank 1 will release gas to increase the air pressure, most of the gas is ammonia, when the air pressure in the inner cavity of the sewage storage tank 1 exceeds the safety value, the pressure relief valve 17 is opened to make the gas pass through the pipeline two 16 and be discharged into the filter 22 through the exhaust pipe 19, the ammonia is absorbed after passing through the clean water 25, then the gas enters the right part of the inner cavity of the filter 22 through the through hole 24, and is discharged from the exhaust port 30 after passing through the dry filter plate 28 and the activated carbon filter plate 29 in turn, avoiding that the sewage suction vehicle directly releases strong pungent gas, preventing the air pressure in the inner cavity of the sewage storage tank 1 from continuously increasing, effectively reducing the risk of explosion of the sewage storage tank 1, improving the safety of the sewage suction vehicle in the operation process, opening the water outlet 27 can recycle the clean water 25 after absorbing ammonia, improving the recycling efficiency and having good environmental benefits.

[0023] Working principle: through the handrail 20 to close the cover 6, so that the fixed plate 7 and ring groove 1 3 fit, and fixed ring 10 in ring groove 2 4, start the electric push rod 13 makes its telescopic end drive moving block 14 movement, so that the moving block 14 and limit groove 15 between the realization of card joint, and then open the air pump 8 and through the pipeline 1 9 to the fixed ring 10 inner cavity in filling gas, air through the fixed ring 10 into the rubber air bag 11, using the rubber air bag 11 shrinkage good characteristics, so that the rubber air bag 11 in inflation after the ring groove 3 5 card joint, and reduce the gap between the ring groove 3 5, in the process of moving the transport vehicle 32, the sewage tank 1 in the storage of the sewage will release gas to increase air pressure, most of the gas is ammonia, when the sewage tank 1 inner cavity air pressure fast beyond the safety value, open the pressure relief valve 17 so that the gas through the pipeline 2 16 and by the exhaust pipe 19 into the filter 22, ammonia gas after the clean water 25 is absorbed, after the gas through the mouth 24 into the filter 22 inner cavity right part, in turn through the dry filter plate 28 and activated carbon filter plate 29 from the exhaust port 30 after discharge, open the drain 27 can be recovered after the absorption of ammonia gas clean water 25 utilization.

Claims

1. A tank door locking device for a vacuum truck, comprising a sludge storage tank (1), characterized in that: The upper part of the inner cavity of the sludge storage tank (1) is fixedly fitted with a tank door tube (2). The top of the inner cavity of the tank door tube (2) is provided with an annular groove 1 (3), the bottom of the annular groove 1 (3) is provided with an annular groove 2 (4), and the bottom of the annular groove 2 (4) is provided with an annular groove 3 (5). The upper part of the tank door tube (2) is movably connected to a cover plate (6) via a shaft. The bottom of the cover plate (6) is fixedly installed with a fixing plate (7). The fixing plate (7) fits into the annular groove 1 (3). The upper part of the cover plate (6) is fixedly installed with... There is an air pump (8), and a pipe (9) is provided in the cover plate (6) and the fixing plate (7). The upper end of the pipe (9) is fixedly connected to the air pump (8). A fixing ring (10) is fixedly installed at the bottom of the fixing plate (7). The inner cavity of the fixing ring (10) is fixedly connected to the bottom end of the pipe (9). The fixing ring (10) fits into the annular groove (4). A rubber airbag (11) is fixedly installed at the bottom of the inner cavity of the fixing ring (10). The rubber airbag (11) is engaged with the annular groove (5).

2. The tank door locking device of a vacuum truck according to claim 1, characterized in that: The fixed plate (7) has six grooves (12) evenly distributed on its side. An electric push rod (13) is fixedly installed in the groove (12). A moving block (14) is fixedly installed on the telescopic shaft of the electric push rod (13). A limiting groove (15) is evenly distributed on the side of the annular groove (3). There are six limiting grooves (15) and they are respectively engaged with the moving block (14).

3. The tank door locking device of a vacuum truck according to claim 1, characterized in that: Pipeline 2 (16) is provided on the right side of pipe 1 (9). A pressure relief valve (17) is fixedly installed on the upper part of the cover plate (6) and on the right side of the air pump (8). The pressure relief valve (17) is fixedly connected to the top of pipe 2 (16). A pressure gauge (18) is fixedly installed on the upper part of the pressure relief valve (17). An exhaust pipe (19) is fixedly installed on the upper part of the pressure relief valve (17) and on the right side of the pressure gauge (18). A handrail (20) is fixedly installed on the upper part of the cover plate (6) and in front of the pressure relief valve (17).

4. The tank door locking device of a vacuum truck according to claim 3, characterized in that: A base plate (21) is fixedly installed on the upper part of the sludge storage tank (1) and directly to the right of the tank door pipe (2). A filter (22) is fixedly installed on the upper part of the base plate (21). The other end of the exhaust pipe (19) is fixedly sleeved on the upper part of the inner cavity of the filter (22). A partition (23) is fixedly installed in the middle of the inner cavity of the filter (22). An opening (24) is provided on the partition (23).

5. The tank door locking device of a vacuum truck according to claim 4, characterized in that: A clean water (25) is provided in the inner cavity of the filter (22) and directly to the left of the partition (23). A water inlet (26) is provided on the upper part of the filter (22) and directly above the clean water (25). A drain outlet (27) is provided on the left side of the filter (22) and directly to the left of the clean water (25).

6. The tank door locking device of a vacuum truck according to claim 4, characterized in that: A drying filter plate (28) is fixedly installed in the inner cavity of the filter (22) and to the right of the partition plate (23). An activated carbon filter plate (29) is fixedly installed in the inner cavity of the filter (22) and to the right of the drying filter plate (28). An exhaust port (30) is opened on the upper part of the filter (22) and to the right of the water inlet (26). A support base (31) is fixedly installed at the bottom of the sludge storage tank (1). A transport vehicle (32) is fixedly installed at the bottom of the support base (31).

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