CN216360169U

CN216360169U - Sewage tank with fan protection device

Info

Publication number: CN216360169U
Application number: CN202122388370.5U
Authority: CN
Inventors: 赵永超; 张瑜; 翦帅; 马龙; 张书民; 常威
Original assignee: Nantong Well Road Special Vehicle Co Ltd
Current assignee: Nantong Well Road Special Vehicle Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-22
Anticipated expiration: 2031-09-30

Abstract

The utility model provides a sewage case with fan protection device, includes the box, and the box top is connected with fan exhaust column and sewage recovery pipe, and fan exhaust column lateral part is equipped with air velocity transducer, is equipped with buoyancy formula blocking device and water proof air permeability plate of fixed connection at the box top in the box, and buoyancy formula blocking device is located under the fan exhaust column port, and the vertical setting of water proof air permeability plate is between the lower port of fan exhaust column and sewage recovery pipe. The utility model has scientific principle and simple structure, can be improved on the basis of the existing sewage tank, not only reduces the shaking of the liquid level in the tank body, but also effectively avoids the fan from being stopped without accident in the running process of the vehicle, and ensures the normal running of the professional vehicle.

Description

Sewage tank with fan protection device

Technical Field

The utility model belongs to the technical field of road special vehicles, and particularly relates to a sewage tank with a fan protection device.

Background

In recent years, with the rapid development of the economy of China and the continuous progress of production technology, the infrastructure scale of the domestic roads is improved year by year. However, the workload of road cleaning and marking cleaning is increased sharply, traditional manpower is gradually eliminated due to low efficiency, and various road cleaning/cleaning vehicles and marking cleaning/cleaning vehicles are used instead, so that the mechanical efficiency is high, the cleaning/cleaning effect is good, and the advantages are obvious.

Professional vehicles such as road sweeping/cleaning vehicles and marking/cleaning vehicles are generally equipped with a sewage tank in order to ensure the cleanness of the road surface. The sewage tank is pumped into negative pressure by the fan, so that external dust, sewage and the like are collected in the sewage tank.

When the fan works, water or other impurities cannot enter the fan, otherwise, the use safety and the service life of equipment are influenced. However, because these vehicles are in the process of continuous movement during operation, the liquid level in the sewage tank can continuously shake along with the running of the vehicles, and the traditional measuring means such as a liquid level meter or a liquid level sensor often generate signal misinformation, so that the fan equipment in normal operation is frequently stopped, and normal operation is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the sewage tank with the fan protection device, which is simple in structure, safe and reliable, and can effectively avoid the condition that a fan stops due to liquid level shaking caused by vehicle running.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a sewage case with fan protection device, includes the box, and the box top is connected with fan exhaust column and sewage recovery pipe, and fan exhaust column lateral part is equipped with air velocity transducer, is equipped with buoyancy formula blocking device and water proof air permeability plate of fixed connection at the box top in the box, and buoyancy formula blocking device is located under the fan exhaust column port, and the vertical setting of water proof air permeability plate is between the lower port of fan exhaust column and sewage recovery pipe.

The buoyancy type locking device comprises a fixed plate, a floating ball, an upper limiting plate, a lower limiting plate and limiting screws, wherein the fixed plate, the upper limiting plate and the lower limiting plate are arranged vertically and sequentially horizontally, the upper surface of the fixed plate is fixedly connected with the top of a box body, the limiting screws are vertically provided with a plurality of limiting plates and penetrate through the upper limiting plate and the lower limiting plate, the upper ends of the limiting screws are fixedly connected to the bottom surface of the fixed plate, all the limiting screws are arranged along the circumferential array of the central line of the lower port of a draught fan exhaust pipe, each limiting screw is sleeved with an adjusting sleeve positioned between the upper limiting plate and the fixed plate, each limiting screw is in threaded connection with an upper fastening nut, the upper end of each upper fastening nut compresses the upper limiting plate, the lower limiting plate is arranged at the lower end of the limiting screw, two lower fastening nuts are in threaded connection with each limiting screw, the upper surface and the lower surface of the lower limiting plate are respectively compressed by the two lower fastening nuts, the fixed plate, The upper limiting plate and the lower limiting plate are respectively provided with a through hole which vertically corresponds to a lower port of the draught pipe of the fan, the floating ball is arranged in a vertical guide channel formed among all the limiting screw rods, and the diameter of the floating ball is larger than that of the through hole.

A plurality of bleeder vent has evenly been seted up on water proof gas permeable plate upper portion, and the equal fixed connection of two vertical sides of water proof gas permeable plate is lateral wall on the box is inside.

By adopting the technical scheme, the buoyancy type locking device is arranged in the box body of the sewage tank, and the device can only move up and down through the floating ball limited in the horizontal direction. When the vehicle works, the fan pumps the interior of the box body into negative pressure vacuum through the fan exhaust pipe, and at the moment, sewage enters the interior of the box body along the sewage recovery pipe. Along with the continuous rising of liquid level in the box, when the liquid level reachd the position of limiting plate down, the floater began to follow limiting screw rod come-up. When the liquid level continues to rise and submerges the lower part of the water-proof air-permeable plate, the air holes are formed in the upper end of the water-proof air-permeable plate, normal air exhaust of the fan cannot be influenced, and the lower part of the water-proof air-permeable plate is not provided with the holes, so that the shaking amount of the liquid level in the box body in the vehicle running process can be effectively reduced.

When the floating ball rises to the position of the upper limiting plate, most of the lower port (namely an air suction opening at the top of the box body) of the air suction pipe of the fan is blocked, but because the adjusting sleeve is arranged between the upper limiting plate and the fixed plate, the floating ball cannot completely block the air suction opening, otherwise, the fan is blocked; the air speed sensor that sets up on the fan exhaust column this moment will detect the induced draft volume slump of fan, and air speed sensor alright send the signal for the fan this moment and shut down.

The fixed plate is fixed on the inner wall of the top of the box body; the upper limit plate has the function of limiting the floating upper limit of the floating ball; set up the adjusting collar between fixed plate and last spacing board, can adjust the position height of spacing board on through the adjusting collar of changing different length. The lower limiting plate can determine the floating starting point of the floating ball. The limiting screw is used for connecting the fixing plate, the upper limiting plate, the adjusting sleeve and the lower limiting plate and has the function of limiting the floating ball to move only up and down.

In conclusion, the sewage tank is scientific in principle and simple in structure, and can be improved on the basis of the existing sewage tank, so that the shaking of the liquid level in the tank body is reduced, the fan is effectively prevented from being stopped without cause in the running process of a vehicle, and the normal running of a professional vehicle is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the buoyancy lock device of FIG. 1;

fig. 3 is an enlarged side view of the septum gas permeable plate of fig. 1.

Detailed Description

As shown in fig. 1-3, the sewage tank with the fan protection device of the present invention includes a tank body 1, a fan exhaust pipe 2 and a sewage recovery pipe 3 are connected to the top of the tank body 1, an air velocity sensor 4 is disposed on the side of the fan exhaust pipe 2, a buoyancy type locking device 5 and a water-proof air-permeable plate 6 are disposed in the tank body 1 and fixedly connected to the top of the tank body 1, the buoyancy type locking device 5 is located right below the lower port of the fan exhaust pipe 2, and the water-proof air-permeable plate 6 is vertically disposed between the lower ports of the fan exhaust pipe 2 and the sewage recovery pipe 3.

The buoyancy type locking device 5 comprises a fixed plate 7, a floating ball 8, an upper limiting plate 9, a lower limiting plate 10 and limiting screws 11, wherein the fixed plate 7, the upper limiting plate 9 and the lower limiting plate 10 are vertically and sequentially and horizontally arranged, the upper surface of the fixed plate 7 is fixedly connected with the top of a box body 1, a plurality of limiting screws 11 are vertically arranged and penetrate through the upper limiting plate 9 and the lower limiting plate 10, the upper ends of the limiting screws 11 are fixedly connected with the bottom surface of the fixed plate 7, all the limiting screws 11 are circumferentially arrayed along the central line of the lower port of a draught fan exhaust pipe 2, an adjusting sleeve 12 positioned between the upper limiting plate 9 and the fixed plate 7 is sleeved on each limiting screw 11, an upper fastening nut 13 is in threaded connection with each limiting screw 11, the upper end of the upper fastening nut 13 compresses the upper limiting plate 9, the lower limiting plate 10 is arranged at the lower end of the limiting screw 11, and two lower fastening nuts 14 are in threaded connection with each limiting screw 11, two lower fastening nuts 14 compress tightly lower limiting plate 10 upper surface and lower surface respectively, all offer the through-hole that corresponds from top to bottom with fan exhaust column 2 lower port on fixed plate 7, last limiting plate 9, the lower limiting plate 10, the floater 8 sets up the vertical guide way that forms between all stop screw 11, and the diameter of floater 8 is greater than the through-hole diameter.

A plurality of air holes 15 are uniformly formed in the upper portion of the water-proof air-permeable plate 6, and two vertical side edges of the water-proof air-permeable plate 6 are fixedly connected to the upper side wall inside the box body 1.

According to the utility model, a buoyancy type locking device 5 is arranged in a box body 1 of the sewage tank, and the device only can move up and down through a floating ball 8 limited in the horizontal direction. When the vehicle works, the fan pumps the interior of the box body 1 into negative pressure vacuum through the fan exhaust pipe 2, and then sewage enters the interior of the box body 1 along the sewage recovery pipe 3. Along with the continuous rising of the liquid level in the box body 1, when the liquid level reaches the position of the lower limiting plate 10, the floating ball 8 begins to float upwards along the limiting screw rod 11. When the liquid level continues to rise and submerges the lower part of the water-proof air-permeable plate 6, the air holes 15 are formed in the upper end of the water-proof air-permeable plate 6, so that normal air exhaust of the fan can not be influenced, and the lower part of the water-proof air-permeable plate 6 is not provided with holes, so that the shaking amount of the liquid level in the box body 1 in the running process of the vehicle can be effectively reduced. The arrows in fig. 1 point to the air flow direction.

When the floating ball 8 rises to the position of the upper limiting plate 9, most of the lower port (namely the suction opening at the top of the box body 1) of the suction pipe 2 of the fan is blocked, but because the adjusting sleeve 12 is arranged between the upper limiting plate 9 and the fixed plate 7, the floating ball 8 can not completely block the suction opening, otherwise, the fan can be blocked; the air draft volume shock drop of fan will be detected to the air velocity transducer 4 that sets up on fan exhaust column 2 this moment, and air velocity transducer 4 alright sends the signal for the fan shut down this moment.

The fixed plate 7 is fixed on the inner wall of the top of the box body 1; the upper limit plate 9 is used for limiting the floating upper limit of the floating ball 8; an adjusting sleeve 12 is arranged between the fixing plate 7 and the upper limiting plate 9, and the height of the upper limiting plate 9 can be adjusted by replacing the adjusting sleeve 12 with different lengths. The lower limit plate 10 can determine the floating start point of the floating ball 8. The limiting screw 11 is used for connecting the fixing plate 7, the upper limiting plate 9, the adjusting sleeve 12 and the lower limiting plate 10, and has the function of limiting the floating ball 8 to move only up and down.

The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a sewage case with fan protection device, includes the box, and the box top is connected with fan exhaust column and sewage recovery pipe, and fan exhaust column lateral part is equipped with air velocity transducer, its characterized in that: the box body is internally provided with a buoyancy type locking device and a water-proof air permeable plate which are fixedly connected to the top of the box body, the buoyancy type locking device is positioned under the lower port of the draught fan exhaust pipe, and the water-proof air permeable plate is vertically arranged between the lower ports of the draught fan exhaust pipe and the sewage recovery pipe.

2. The sump with fan guard of claim 1, wherein: the buoyancy type locking device comprises a fixed plate, a floating ball, an upper limiting plate, a lower limiting plate and limiting screws, wherein the fixed plate, the upper limiting plate and the lower limiting plate are arranged vertically and sequentially horizontally, the upper surface of the fixed plate is fixedly connected with the top of a box body, the limiting screws are vertically provided with a plurality of limiting plates and penetrate through the upper limiting plate and the lower limiting plate, the upper ends of the limiting screws are fixedly connected to the bottom surface of the fixed plate, all the limiting screws are arranged along the circumferential array of the central line of the lower port of a draught fan exhaust pipe, each limiting screw is sleeved with an adjusting sleeve positioned between the upper limiting plate and the fixed plate, each limiting screw is in threaded connection with an upper fastening nut, the upper end of each upper fastening nut compresses the upper limiting plate, the lower limiting plate is arranged at the lower end of the limiting screw, two lower fastening nuts are in threaded connection with each limiting screw, the upper surface and the lower surface of the lower limiting plate are respectively compressed by the two lower fastening nuts, the fixed plate, The upper limiting plate and the lower limiting plate are respectively provided with a through hole which vertically corresponds to a lower port of the draught pipe of the fan, the floating ball is arranged in a vertical guide channel formed among all the limiting screw rods, and the diameter of the floating ball is larger than that of the through hole.

3. The sump with fan guard of claim 1 or 2, wherein: a plurality of bleeder vent has evenly been seted up on water proof gas permeable plate upper portion, and the equal fixed connection of two vertical sides of water proof gas permeable plate is lateral wall on the box is inside.