CN112942557A - Anti-overflow device of sewage suction truck - Google Patents
Anti-overflow device of sewage suction truck Download PDFInfo
- Publication number
- CN112942557A CN112942557A CN202110373908.7A CN202110373908A CN112942557A CN 112942557 A CN112942557 A CN 112942557A CN 202110373908 A CN202110373908 A CN 202110373908A CN 112942557 A CN112942557 A CN 112942557A
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- Prior art keywords
- cylinder
- floating ball
- air inlet
- wave
- air
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/10—Wheeled apparatus for emptying sewers or cesspools
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/10—Wheeled apparatus for emptying sewers or cesspools
- E03F7/106—Accessories, e.g. hose support
Abstract
The utility model provides a soil pick-up car anti-overflow device, includes an air inlet section of thick bamboo, outlet duct, and an air inlet section of thick bamboo is located the outlet duct below, places a floater in the air inlet section of thick bamboo, leaves interval, its characterized in that between floater and the outlet duct: the upper end of the air inlet cylinder is connected with a mounting seat, a wave-proof cylinder for preventing liquid from entering is arranged outside the air inlet cylinder, an inlet for air flow to enter is reserved at the upper end of the wave-proof cylinder, an air flow channel is reserved between the side wall of the wave-proof cylinder and the side wall of the air inlet cylinder, the lower end of the wave-proof cylinder is fixedly connected with the periphery of the air inlet cylinder to form a seal, a concave floating ball support plate is arranged at the lower part of the air inlet cylinder, the floating ball support plate is conical, a liquid inlet hole is formed in the center of the bottom end of the conical floating ball support plate, the diameter of the liquid inlet hole is smaller than that of a floating ball, the floating ball is placed on the floating ball support plate to.
Description
Technical Field
The invention relates to the technical field of sewage suction trucks, in particular to an anti-overflow device of a sewage suction truck.
Background
Vacuum pump card often appears in the soil pick-up car on the market and is dead, and one of the leading reason that can not work is during just sewage gets into the pump, to this problem, the vacuum pump producer has designed the anti-overflow valve of installing on the jar and has solved this problem. But the structure has little effect on the medium with a large amount of bubbles in a septic tank, a sewage well and the like. The overflow-proof valve in the market floats the ball by the buoyancy of sewage, and can block the passage for the medium to enter the vacuum pump. In actual use, the bubbles float on the liquid level, the floating ball does not float on the liquid level, the full-volume alarm device of the vehicle does not give an alarm, but the bubbles on the liquid level enter the air inlet cylinder and are condensed into water after being sucked into the vacuum pipeline and broken. The conventional rotary vane vacuum pump on the market does not allow water to enter, and after water enters, the vacuum pump is extremely easy to be damaged by being stuck because the water cannot be compressed. When the device is used in a high-temperature area, a very small amount of water can be taken away with air by the vacuum pump and evaporated. However, when the vacuum pump is used in the area below zero, water cannot be taken away for evaporation or even frozen due to the low temperature of the vacuum pump, and the vacuum pump is extremely easy to damage under the working condition. Thus, in order to avoid the air bubbles on the liquid surface from being sucked into the vacuum pipeline, the sewage sucked by the sewage suction truck does not reach the rated capacity, and the suction is stopped.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides an overflow prevention device for a sewage suction truck, which can prevent bubbles from entering a vacuum pump, and the technical scheme of the overflow prevention device is as follows:
an overflow preventing device of a sewage suction truck comprises an air inlet cylinder (3) and an air outlet pipe (2), wherein the air inlet cylinder (3) is positioned below the air outlet pipe (2), a floating ball (4) is placed in the air inlet cylinder (3), a space is reserved between the floating ball (4) and the air outlet pipe (2), the upper end of the air inlet cylinder (3) is connected with a mounting seat (5), a wave-proof cylinder (1) for preventing liquid from entering is arranged outside the air inlet cylinder (3), an inlet for air flow to enter is reserved at the upper end of the wave-proof cylinder (1), an air flow channel is reserved between the side wall of the wave-proof cylinder (1) and the side wall of the air inlet cylinder (3), the lower end of the wave-proof cylinder (1) is fixedly connected with the periphery of the air inlet cylinder (3) to form a closed state, a supporting plate (7) for the floating ball is arranged at the lower part of the air inlet cylinder (3), the supporting plate (7) is conical, a liquid inlet hole (8), the diameter of the liquid inlet hole (8) is smaller than that of the floating ball (4), the floating ball (4) is placed on the floating ball support plate (7) to block the liquid inlet hole (8), the side wall of the air inlet cylinder (3) is provided with an air vent (6) communicated with the air flow channel, and the air vent (6) is located above the floating ball support plate (7).
The diameter of the liquid inlet hole (8) is 3/10-1/2 of the diameter of the floating ball (4).
And an airflow inlet at the upper end of the wave-proof cylinder (1) is at least 200mm higher than the alarm liquid level.
The outer flange (10) is arranged on the periphery of the air inlet cylinder (3), the inner flange (9) is arranged at the lower end of the wave-proof cylinder (1), and the wave-proof cylinder (1) is fixedly connected with the outer flange (10) of the air inlet cylinder (3) through the inner flange (9).
The air outlet pipe (2) is arranged in the mounting seat (5), the upstream end of the air outlet pipe (2) is positioned above the floating ball, and the downstream end of the air outlet pipe (2) extends out of the mounting seat (5) and is used for being connected with an exhaust pipe of a vacuum pump.
The upper end of the mounting seat (5) is provided with an upper cover, and the downstream end of the air outlet pipe (2) extends out of the side wall of the mounting seat (5).
The diameter of the floating ball (4) is larger than the aperture of the air outlet pipe (2).
Adopt above-mentioned technical scheme: the device comprises an air inlet cylinder (3) and an air outlet pipe (2), wherein the air inlet cylinder (3) is positioned below the air outlet pipe (2), a floating ball (4) is arranged in the air inlet cylinder (3), a space is reserved between the floating ball (4) and the air outlet pipe (2), the upper end of the air inlet cylinder (3) is connected with a mounting seat (5), a wave-proof cylinder (1) for preventing liquid from entering is arranged outside the air inlet cylinder (3), an air flow inlet is reserved at the upper end of the wave-proof cylinder (1), an air flow channel is reserved between the side wall of the wave-proof cylinder (1) and the side wall of the air inlet cylinder (3), the lower end of the wave-proof cylinder (1) is fixedly connected with the periphery of the air inlet cylinder (3) to form a closed structure, a concave floating ball supporting plate (7) is arranged at the lower part of the air inlet cylinder (3), the floating ball (7) is conical, a liquid inlet hole (8) is arranged at, the diameter of the liquid inlet hole (8) is smaller than that of the floating ball (4), the floating ball (4) is placed on the floating ball support plate (7) to block the liquid inlet hole (8), the side wall of the air inlet cylinder (3) is provided with an air vent (6) communicated with the air flow channel, and the air vent (6) is located above the floating ball support plate (7). The overflow preventing device of the sewage suction truck is characterized in that a wave preventing cylinder (1) is additionally arranged outside an air inlet cylinder (3), bubbles on the liquid level are prevented from entering the air inlet cylinder (3), a floating ball supporting plate (7) at the lower part of the air inlet cylinder (3) is used for blocking a liquid inlet hole (8) by the gravity of a floating ball (4), the bubbles are prevented from entering the air inlet cylinder (3) from the liquid inlet hole (8), but sewage is not influenced to enter the air inlet cylinder (3) from the liquid inlet hole (8), when the floating ball (4) is about to float by the sewage, a liquid level alarm starts to give an alarm, the alarm indicates that the rated capacity of a tank body of the sewage suction truck is. Therefore, the sewage suction truck can suck sewage with rated capacity, no air bubbles enter the vacuum pipeline, the working efficiency is improved, the vacuum pump is protected from being damaged, and the service life of the vacuum pump is prolonged.
The diameter of the liquid inlet hole (8) is 3/10-1/2 of the diameter of the floating ball (4).
The air inlet at the upper end of the wave-proof cylinder (1) is at least 200mm higher than the alarm liquid level, so that bubbles on the liquid level do not rise to the air inlet of the wave-proof cylinder (1) yet when the alarm is given, and the bubbles are prevented from entering the wave-proof cylinder (1).
The outer flange (10) is arranged on the periphery of the air inlet cylinder (3), the inner flange (9) is arranged at the lower end of the wave-proof cylinder (1), and the wave-proof cylinder (1) is fixedly connected with the outer flange (10) of the air inlet cylinder (3) through the inner flange (9).
The air outlet pipe (2) is arranged in the mounting seat (5), the upstream end of the air outlet pipe (2) is positioned above the floating ball, and the downstream end of the air outlet pipe (2) extends out of the mounting seat (5) and is used for being connected with an exhaust pipe of a vacuum pump.
The upper end of the mounting seat (5) is provided with an upper cover, and the downstream end of the air outlet pipe (2) extends out of the side wall of the mounting seat (5).
The diameter of the floating ball (4) is larger than the aperture of the air outlet pipe (2), the floating ball (4) is used as the last pass, and in case the vacuum pump does not stop working all the time, the floating ball (4) can block the opening of the air outlet pipe (2) to prevent sewage from entering the air outlet pipe (2).
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a schematic structural diagram of an intake barrel;
fig. 4 is a schematic view showing the direction of air flow when the vacuum pump is operated.
Detailed Description
The invention discloses an embodiment of an anti-overflow device of a sewage suction truck, which comprises the following steps:
referring to fig. 1-4, an overflow preventing device for a sewage suction truck comprises an air inlet cylinder (3) and an air outlet pipe (2), wherein the air inlet cylinder (3) is located below the air outlet pipe (2), a floating ball (4) is placed in the air inlet cylinder (3), a distance is reserved between the floating ball (4) and the air outlet pipe (2), the upper end of the air inlet cylinder (3) is connected with a mounting seat (5), the air outlet pipe (2) is arranged in the mounting seat (5), the upstream end of the air outlet pipe (2) is located above the floating ball, and the downstream end of the air outlet pipe (2) extends out of the mounting seat (5) and is used for connecting an exhaust pipe of a vacuum pump. An upper cover (11) is arranged at the upper end of the mounting seat (5), and the downstream end of the air outlet pipe (2) extends out of the side wall of the mounting seat (5). The anti-wave air intake device is characterized in that a wave-proof cylinder (1) used for preventing liquid from entering is arranged outside the air intake cylinder (3), an inlet for air flow entering is reserved at the upper end of the wave-proof cylinder (1), an air flow channel is reserved between the side wall of the wave-proof cylinder (1) and the side wall of the air intake cylinder (3), the lower end of the wave-proof cylinder (1) is fixedly connected with the periphery of the air intake cylinder (3) to form a seal, an outer flange (10) is arranged on the periphery of the air intake cylinder (3), an inner flange (9) is arranged at the lower end of the wave-proof cylinder (1), the wave-proof cylinder (1) is fixedly connected with the outer flange (10) of the air intake cylinder (3) through the inner flange (9), and the inner flange (. The lower part of the air inlet cylinder (3) is provided with a concave floating ball supporting plate (7), the floating ball supporting plate (7) is conical, a liquid inlet hole (8) is formed in the center of the bottom end of the conical floating ball supporting plate (7), and the diameter of the liquid inlet hole (8) is 3/10-1/2 of the diameter of the floating ball (4). The floating ball (4) is placed on the floating ball support plate (7) to block the liquid inlet hole (8), the side wall of the air inlet cylinder (3) is provided with vent holes (6) communicated with the airflow channel, the air inlet cylinder (3) in the embodiment is provided with four rectangular vent holes (6), and the vent holes (6) are positioned above the floating ball support plate (7). The air inlet at the upper end of the wave-proof cylinder (1) is at least 200mm higher than the alarm liquid level, so that when an alarm is given, bubbles on the liquid level do not rise to the air inlet of the wave-proof cylinder (1), the bubbles are prevented from entering the wave-proof cylinder (1), and if a working condition that a bubble layer is thicker exists, the distance between the air inlet and the alarm liquid level is increased. The mount pad (5) of this embodiment is cylindric structure, and the diameter of this drum is less than the diameter of a unrestrained section of thick bamboo (1), and this drum lower extreme is equipped with the installing support for with the installing support fixed connection that air inlet tube (3) upper end set up, this drum welding on the jar body (12) of soil pick-up car, the one end that extends jar body (12) sets up upper cover (11), upper cover (11) still are equipped with compact structure outward. The diameter of the floating ball (4) is larger than the aperture of the air outlet pipe (2), the floating ball (4) is used as the last pass, and in case the vacuum pump does not stop working all the time, the floating ball (4) can block the opening of the air outlet pipe (2) to prevent sewage from entering the air outlet pipe (2). The overflow preventing device of the sewage suction truck is characterized in that a wave preventing cylinder (1) is additionally arranged outside an air inlet cylinder (3), bubbles on the liquid level are prevented from entering the air inlet cylinder (3), a floating ball supporting plate (7) at the lower part of the air inlet cylinder (3) is used for blocking a liquid inlet hole (8) by the gravity of a floating ball (4), the bubbles are prevented from entering the air inlet cylinder (3) from the liquid inlet hole (8), but sewage is not influenced to enter the air inlet cylinder (3) from the liquid inlet hole (8), when the floating ball (4) is about to float by the sewage, a liquid level alarm starts to give an alarm, the alarm indicates that the rated capacity of a tank body of the sewage suction truck is. Therefore, the sewage suction truck can suck sewage with rated capacity, no air bubbles enter the vacuum pipeline, the working efficiency is improved, the vacuum pump is protected from being damaged, and the service life of the vacuum pump is prolonged.
When the vacuum pump works, the direction of airflow is changed by adding the wave-proof cylinder (1), so that the airflow enters from the upper end of the wave-proof cylinder (1) and then downwardly bypasses the air vent (6) on the side wall of the air inlet cylinder (3) to enter, as shown in figure 4, at the moment, sewage is slowly sucked into the sewage suction truck tank body, the liquid level gradually rises, the wave-proof cylinder (1) separates bubbles on the liquid level outside the air inlet cylinder (3), when the sewage is about to float the floating ball (4), the liquid level alarm starts to alarm to indicate that the sewage reaches the rated capacity of the sewage suction truck tank body, and then the suction of the vacuum pump is stopped.
Claims (7)
1. The utility model provides a soil pick-up car anti-overflow device, includes an air inlet section of thick bamboo (3), outlet duct (2), an air inlet section of thick bamboo (3) are located outlet duct (2) below, place a floater (4) in an air inlet section of thick bamboo (3), leave interval, its characterized in that between floater (4) and outlet duct (2): the upper end of the air inlet cylinder (3) is connected with a mounting seat (5), a wave-proof cylinder (1) for preventing liquid from entering is arranged outside the air inlet cylinder (3), an inlet for air to enter is reserved at the upper end of the wave-proof cylinder (1), an air flow channel is reserved between the side wall of the wave-proof cylinder (1) and the side wall of the air inlet cylinder (3), the lower end of the wave-proof cylinder (1) is fixedly connected with the periphery of the air inlet cylinder (3) to form a seal, a concave floating ball support plate (7) is arranged at the lower part of the air inlet cylinder (3), the floating ball support plate (7) is conical, a liquid inlet hole (8) is arranged at the center of the bottom end of the conical floating ball support plate (7), the diameter of the liquid inlet hole (8) is smaller than that of a floating ball (4), the floating ball (4) is placed on the floating ball support plate (7) to block the liquid inlet hole (8), an air vent (6) is arranged on, the vent hole (6) is positioned above the floating ball support plate (7).
2. The overflow preventing device of the sewage suction truck as claimed in claim 1, wherein: the diameter of the liquid inlet hole (8) is 3/10-1/2 of the diameter of the floating ball (4).
3. The overflow preventing device of the sewage suction truck as claimed in claim 1, wherein: and an airflow inlet at the upper end of the wave-proof cylinder (1) is at least 200mm higher than the alarm liquid level.
4. The overflow preventing device of the sewage suction truck as claimed in claim 1, wherein: the outer flange (10) is arranged on the periphery of the air inlet cylinder (3), the inner flange (9) is arranged at the lower end of the wave-proof cylinder (1), and the wave-proof cylinder (1) is fixedly connected with the outer flange (10) of the air inlet cylinder (3) through the inner flange (9).
5. The overflow preventing device of the sewage suction truck as claimed in claim 1, wherein: the air outlet pipe (2) is arranged in the mounting seat (5), the upstream end of the air outlet pipe (2) is positioned above the floating ball, and the downstream end of the air outlet pipe (2) extends out of the mounting seat (5) and is used for being connected with an exhaust pipe of a vacuum pump.
6. The overflow preventing device of the sewage suction truck as claimed in claim 5, wherein: an upper cover (11) is arranged at the upper end of the mounting seat (5), and the downstream end of the air outlet pipe (2) extends out of the side wall of the mounting seat (5).
7. The overflow preventing device of the sewage suction truck as claimed in claim 1, wherein: the diameter of the floating ball (4) is larger than the aperture of the air outlet pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373908.7A CN112942557A (en) | 2021-04-07 | 2021-04-07 | Anti-overflow device of sewage suction truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373908.7A CN112942557A (en) | 2021-04-07 | 2021-04-07 | Anti-overflow device of sewage suction truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112942557A true CN112942557A (en) | 2021-06-11 |
Family
ID=76230481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110373908.7A Pending CN112942557A (en) | 2021-04-07 | 2021-04-07 | Anti-overflow device of sewage suction truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112942557A (en) |
-
2021
- 2021-04-07 CN CN202110373908.7A patent/CN112942557A/en active Pending
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