CN112044866A - An urban surveying and mapping vehicle for geographic information collection with dust removal function - Google Patents

Abstract

The invention discloses an urban surveying and mapping vehicle with a dust removal function and used for geographic information acquisition, wherein the upper end of a dust removal mechanism dust removal bin is connected with a dust extraction port through a dust extraction pipe, and the bottom of the dust removal bin is hinged with a dust exhaust bottom cover; the dust removal device comprises a dust removal mechanism, a power bin, a piston, a one-way air inlet valve, a first exhaust pipe, a dust removal water tank, a dust removal bottom cover, a dust removal device and a power device, wherein the power bin of the dust removal mechanism is internally provided with an air cylinder and a piston, the piston is driven by the power device to move along the interior of the air cylinder, the middle part of the piston is provided with the one-way air inlet valve, the air cylinder is divided into an air inlet bin and an exhaust bin by the piston, the air inlet; the upper end of the dust removal bin is connected with the dust removal water tank through the water spray pipe, the dust removal water tank is connected with the side wall of the upper end of the dust extraction pipe through the flushing pipe, the lower section of the dust removal bin is connected with the dust removal water tank through the water return pipe, and the dust removal water tank is connected with the water supplement tank through the water supplement pipe.

Description

An urban surveying and mapping vehicle for geographic information collection with dust removal function

technical field

The invention relates to the technical field of surveying and mapping devices, in particular to an urban surveying and mapping vehicle for geographic information collection with a dust removal function.

Background technique

Surveying and mapping is measurement and drawing. It is based on computer technology, optoelectronic technology, network communication technology, space science, and information science, with global navigation satellite positioning system, remote sensing, and geographic information system as the core technology. The boundary line obtains the graphics and position information reflecting the current situation of the ground through the measurement method, which is used for the planning, design and administrative management of the engineering construction. As a kind of urban surveying and mapping equipment, surveying and mapping vehicles are widely used in the process of urban surveying and mapping. The surveying and mapping vehicle goes in and out of different places to collect information. In some environments (such as on both sides of the road), a lot of dust will be scattered around, blurring the mirror surface of the surveying and mapping, and affecting the accuracy of the surveying and mapping. necessary. However, the existing dust removal devices for surveying and mapping vehicles have the following defects:

(1) In the prior art, a dust suction port is usually set on the lens side of the surveying and mapping instrument, and the dust removal water carried by the vehicle is used to settle this part of the dust, so as to avoid the collected dust from being raised in the dust removal chamber and blocking the pipeline. . Due to the limited volume of the surveying and mapping vehicle itself, and the need to carry a large number of auxiliary surveying and mapping devices, carrying a large amount of dust removal water will inevitably increase the burden of travel.

(2) In some technologies, the filtered dust removal water is considered to be reused, but for recycling the dust removal water, it is easy to accumulate mud in the return pipe if it is not cleaned for a long time. It is easy to accumulate dust, which will affect the normal performance of the dust removal function of the surveying and mapping device.

SUMMARY OF THE INVENTION

To this end, the present invention provides an urban surveying and mapping vehicle for geographic information collection with a dust removal function, so as to solve the above-mentioned defects in the prior art.

An urban surveying and mapping vehicle for geographic information collection with dust removal function, comprising a body, a surveying and mapping instrument installed on the body, a dust removal mechanism, a dust removal water tank and a supply water tank;

The dust removal mechanism is installed at the bottom of the body, including a dust removal bin and a power bin. The upper end of the dust removal bin is connected with a dust extraction port facing the surveying and mapping port of the surveying and mapping instrument through a dust extraction pipe, and the bottom of the dust removal bin is hingedly installed with a dust exhaust bottom. cover;

The power compartment is provided with a cylinder and a piston arranged inside the cylinder. The piston is driven and moved by the power device. The middle of the piston is hollow, and the hollow part is provided with a one-way intake valve. The piston divides the interior of the cylinder into an intake compartment. and an exhaust silo, the air intake silo is connected to the top of the dust removal silo through an air intake pipe, the exhaust silo is connected to the dedusting water tank through a first exhaust duct, and the first exhaust duct is provided with a first One-way exhaust valve; the exhaust bin is also connected with a second exhaust pipe, the second exhaust pipe is provided with a second one-way exhaust valve, and the exhaust end of the second exhaust pipe is facing The bottom of the dust exhaust bottom cover can close the normally open dust exhaust bottom cover when the airflow in the second exhaust pipe is large enough;

The upper end of the dust removal bin and the dust removal water tank are connected by a water spray pipe, the water spray pipe is provided with a first solenoid valve, the dust removal water tank and the upper end side wall of the dust extraction pipe are connected by a flushing pipe, and the flushing pipe is connected. A second solenoid valve is arranged on the water pipe, the lower section of the dust removal bin and the dust removal water tank are connected by a return water pipe, and the upper end of the dust removal water tank and the supply water tank are connected by a water supply pipe.

Preferably, a separation filter screen is arranged inside the dust removal bin, and the lower end of the dust extraction pipe extends into the dust removal bin below the separation filter screen.

Preferably, the middle part of the water spray pipe is connected with a two-way, both ends of the flushing pipe are connected between the side wall of the dust extraction pipe and the two-way, and the first solenoid valve is arranged between the two-way and the dust removal pipe. On the water spray pipe between the bins, the second solenoid valve is arranged on the flush pipe.

Preferably, a dust discharge port is provided below the dust removal bin, the dust discharge bottom cover is hingedly installed under one side of the dust discharge port, and the lower end of the dust discharge bottom cover is provided with an inclined support plate. Dust bottom cover above the support.

Preferably, the upper end of the dust removal bin is provided with a water spray head, and the water outlet end of the water spray pipe is connected to the water spray head.

Preferably, the power device is a linear motor.

Preferably, the dust discharge port is arranged in a funnel shape, a filter screen end cover is provided on the lower end side wall of the dust discharge port, and the water inlet end of the water return pipe is connected to the filter screen end cover.

Preferably, the water outlet of the flushing pipe is inclined downward.

The present invention has the following advantages:

The device of the present invention has two modes of dust removal and pipe cleaning in alternate operation. In the dust removal mode, the dust removal mechanism can adsorb the dust on the surface of the mapping instrument, and intermittently discharge the dust from the bottom of the dust removal bin. The interior of the silo forms a closed negative pressure space, on the one hand, dust is adsorbed into it, and sprayed and settled by the incoming water in the dust removal tank; Moisture, under the action of the air pressure difference, the collected water is returned to the dust removal tank for reuse, and the replenishment water tank can automatically replenish the remaining consumed water for the dust removal tank; in the pipe cleaning mode, the pipes used for water return and dust extraction will The device of the invention improves the surveying and mapping environment as a whole, saves resources, and improves the accuracy of surveying and mapping.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic diagram of the enlarged structure of A in FIG. 1 of the present invention (when the exhaust silo is inhaled in the dust removal mode);

3 is a schematic diagram of the enlarged structure of A in FIG. 1 of the present invention (when the exhaust chamber is exhausted in the dust removal mode);

FIG. 4 is a schematic diagram of the enlarged structure of A in FIG. 1 (when the exhaust chamber is exhausted in the pipeline cleaning mode) of the present invention.

In the picture:

1- body; 2- mapping instrument; 3- dust removal mechanism; 4- dust removal water tank; 5- supply water tank; 6- first exhaust pipe; 7- first one-way exhaust valve; 8- second exhaust pipe; 9-Second one-way exhaust valve; 10-Dust extraction pipe; 11-Water spray pipe; 12-First solenoid valve; 13-Water return pipe; 14-Water supply pipe; 15-Water flush pipe; ;17-two-way;

301-dust bin; 303-dust outlet; 304-dust bottom cover; 305-cylinder; 306-piston; 307-one-way intake valve; 308-intake pipe; 309-intake bin; 310-exhaust bin 311-power unit; 312-separating filter; 313-spray head; 314-dust outlet; 315-inclined support plate; 316-filter cover.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

As shown in FIG. 1 to FIG. 4 , the present invention provides an urban surveying and mapping vehicle for geographic information collection with a dust removal function, which can improve the surveying and mapping environment and improve the surveying and mapping accuracy. specific:

The mapping device includes a body 1 and a mapping instrument 2 mounted on the body 1 . The body 1 may be a transport trolley carrying the surveying instrument 2 or a supporting device for the surveying instrument 2 or the like. The surveying instrument 2 is a surveying and mapping instrument with an optical lens on the surface, such as a theodolite, a total station, and the like. When such a surveying and mapping device surveys and maps in a dusty environment such as a road, since the lens of the surveying and mapping instrument 2 is covered with dust, the lens needs to be wiped frequently, and the operation is cumbersome.

In order to solve the above problems, the surveying and mapping device of the present invention is further provided with a dust removal mechanism 3 , a dust removal water tank 4 and a supply water tank 5 .

Among them, the dust removal mechanism 3 is used for adsorbing the dust on the surface of the mapping instrument 2 . specific:

The dust removal mechanism 3 is installed at the bottom of the body 1 and includes a dust removal chamber 301 and a power chamber.

In the present invention, the upper end of the dust removal bin 301 is connected with a dust extraction port 303 facing the surveying and mapping port of the surveying instrument 2 through the dust extraction pipe 10 , so as to absorb the dust formed on the surface of the surveying instrument 2 .

The bottom of the dust removal bin 301 is hingedly mounted with a dust discharge bottom cover 304, and the dust discharge bottom cover 304 is opened intermittently during the process of dust removal.

A cylinder 305 and a piston 306 arranged inside the cylinder 305 are arranged inside the power chamber. The piston 306 is driven and moved by a power device 311, which is a linear motor in the present invention.

The center of the piston 306 is hollow, and the hollow part is provided with a one-way intake valve 307. The piston 306 divides the interior of the cylinder 307 into an intake chamber 309 and an exhaust chamber 310. The one-way intake valve 307 prevents air from flowing from the exhaust chamber 310. It can only enter into the air intake chamber 309 from the air intake chamber 309 and into the exhaust chamber 310 from the air intake chamber 309 .

The air intake bin 309 is connected to the top of the dust removal bin 301 through an air intake pipe 308 . In order to prevent dust from flowing back from the dust removal bin 301 to the air intake bin 309 , a separation filter screen 312 is provided inside the dust removal chamber 301 , and the lower end of the dust extraction pipe 10 extends into the dust removal chamber 301 below the separation filter screen 304 .

The exhaust bin 310 is connected to the dust removal water tank 4 through a first exhaust pipe 6 , and a first one-way exhaust valve 7 is provided on the first exhaust pipe 6 . The first one-way exhaust valve 7 here has two functions. On the one hand, it can control the opening and closing of the first exhaust pipe 6; The silo 310 enters the first exhaust pipe 6 without the backflow of the gas.

The exhaust chamber 310 is also connected with a second exhaust pipe 8 , and a second one-way exhaust valve 9 is provided on the second exhaust pipe 8 . The second one-way exhaust valve 9 allows the gas to flow into the second exhaust pipe 8 only from the exhaust chamber 310 , without the backflow of the gas.

The exhaust end of the second exhaust pipe 8 is facing the bottom of the dust exhaust bottom cover 304. When the airflow in the second exhaust pipe 8 is large enough, the normally open dust exhaust bottom cover 304 can be closed. specific:

A dust discharge port 314 is provided below the dust removal bin 301, the dust discharge bottom cover 304 is hingedly installed under one side of the dust discharge port 314, and the lower end of the dust discharge bottom cover 304 is provided with an inclined support plate 315. The support plate 315 is used to support the dust exhaust bottom cover 304 above.

The upper end of the dust removal bin 301 and the dust removal water tank 4 are connected by a water spray pipe 11. The upper end of the dust removal chamber 301 is provided with a water spray head 313, and the water outlet end of the water spray pipe 11 is connected to the water spray head. 313 on. The water spray head 313 can be an atomized water spray head, which can increase the contact area between the water vapor and the dust entering the dust removal bin 301, and improve the sedimentation efficiency of the dust.

The water spray pipe 11 is provided with a first solenoid valve 12 , the dust removal tank 4 and the upper end sidewall of the dust extraction pipe 10 are connected by a flush pipe 15 , and a second solenoid valve 16 is provided on the flush pipe 15 . The water outlet of the flushing pipe 15 is inclined downward. The water flow entering the dust extraction pipe 10 is prevented from being sprayed out of the dust extraction port 303 to be polluted. In order to further simplify the device, the middle part of the water spray pipe 11 is connected with a two-way 17, the two ends of the flushing pipe 15 are connected between the side wall of the dust extraction pipe 10 and the two-way 17, the first electromagnetic The valve 12 is arranged on the water spray pipe 11 between the two-way 17 and the dust removal bin 301 , and the second solenoid valve 16 is arranged on the flushing pipe 15 .

The lower section of the dedusting bin 301 and the dedusting water tank 4 are connected through the return pipe 13 . Specifically, the dust discharge port 314 is set in a funnel shape, which is beneficial to the guiding and gathering of the liquid in the dust removal bin 301 . A filter screen end cover 316 is provided on the lower end side wall of the dust discharge port 314 , and the water inlet end of the water return pipe 13 is connected to the filter screen end cover 316 . It is possible to prevent the dust that absorbs moisture and settles from entering the return pipe 13 and pollutes the water stored in the dedusting water tank 4 .

The upper end of the dedusting water tank 4 is connected with the replenishing water tank 5 through a replenishing water pipe 14 . The make-up water tank 5 can provide make-up water in the dedusting water tank 4 . The water supply pipe 14 is also provided with a one-way valve (not shown in the figure), which can only allow water to enter the dedusting water tank 4 from the supply water tank 5, but cannot flow in the reverse direction.

The working principle of the device of the present invention is:

During the working process of the surveying and mapping device, the dust removal mechanism 3 is always in a working state. The dust removal mechanism 3 of the present invention has two working modes, namely, a dust removal mode and a pipe cleaning mode. specific:

1. Dust removal mode:

The linear motor is activated to push the piston 306 to reciprocate along the cylinder 305 . At this time, the first solenoid valve 12 is opened, the first one-way exhaust valve 7 and the second solenoid valve 16 are closed, and the dedusting water tank 4 and the replenishing water tank 5 are filled with water.

As shown in FIG. 2 , when the piston 306 moves to the left along the cylinder 305 , the volume of the exhaust chamber 310 increases, and negative pressure is formed therein, and the gas in the intake chamber 309 will pass through the one-way intake valve in the middle of the piston 306 Part 307 enters the exhaust chamber 310. At this time, there is no air pressure under the dust exhaust bottom cover 304 and is not enough to cover the dust exhaust port 314 upward. Dropped, reducing the load on the surveying device, and since the dust has settled, there is no need to worry about dusting it again.

As shown in FIG. 3 , when the piston 306 moves to the right along the cylinder 305 , the volume of the exhaust chamber 310 is reduced, and the gas in the exhaust chamber 310 is squeezed and discharged from the second exhaust pipe 8 . The outlet of the air pipe 8 has sufficient air pressure to blow the dust discharge bottom cover 304 upward, and the dust discharge port 314 provided below the dust removal bin 301 is instantly blocked by the dust discharge bottom cover 304 .

At the same time, during the movement of the piston 306 to the exhaust chamber 310, a negative pressure is formed inside the air intake chamber 309. Because the dust removal chamber 301 is connected to the air intake chamber 309 through the air intake pipe 308, and because the dust discharge port 314 of the dust removal chamber 301 is closed Blocking, the inside of the dust removal bin 301 is in a sealed negative pressure space. The dust removal bin 301 will extract dust from the dust extraction port 303 through the dust extraction pipe 10, and the dust extraction port 303 will remove the dust distributed around the surveying and plotting instrument 2, and has an excellent dust removal effect for geographic information mapping in dusty areas.

After the dust enters the dust removal bin 301 below the separation filter screen 312 through the dust extraction pipe 10 , the dust is retained in the space below the separation filter screen 304 . The water in the dedusting water tank 4 will enter the dedusting bin 301 in a negative pressure environment through the water spray pipe 11, and will be sprayed on the dust in the dedusting bin 301 under the action of the water spray head, and the dust in the dedusting bin 301 will be settled. , to avoid the formation of fugitive dust in the dust removal bin 301 due to gas flow.

In addition, since the water in the dedusting water tank 4 is reduced, a negative pressure space is formed inside the dedusting water tank 4 . The water settled in the dust discharge port 314 below the dust removal bin 301 (at this time, the dust discharge bottom cover 304 seals the dust discharge port 314, and the water will not flow down) can be recovered through the return pipe 13 to the dust removal water tank 4 for recycling. On the one hand, it is beneficial to save water resources, and on the other hand, it can also reduce the water-carrying load of the surveying and mapping device for dust removal.

Since part of the moisture used for sedimentation cannot be fully recycled, the pressure difference formed in the dedusting water tank 4 will cause the replenishing water in the replenishing water tank 5 to enter the dedusting water tank 4 through the replenishing water pipe 14 .

The dust discharge bottom cover 304 always performs intermittent undulating motion during the above process, which can promote the shaking and falling of dust in the dust removal bin 301 and improve the dust discharge efficiency.

2. Pipeline cleaning mode:

When the dust removal mechanism 3 is used for a long time, dust is easily deposited in the dust extraction pipe 10 and the return pipe 13, which affects the normal operation of the device. Therefore, this part of the pipe needs to be cleaned regularly. specific:

On the basis of the dust removal mode, the first one-way exhaust valve 7 and the second solenoid valve 16 are opened, and the first solenoid valve 12 is closed. The specific implementation is as follows:

As shown in FIG. 4 , when the piston 306 moves to the right along the cylinder 305, the gas in the exhaust chamber 310 is squeezed and discharged from the second exhaust pipe 8 and the first exhaust pipe 6. The air pressure of the second exhaust pipe 8 is partially shared by the first exhaust pipe 6, and the airflow at the lower part of the dust exhaust bottom cover 304 is not enough to keep the dust exhaust port 314 in a closed state. The air pressure entering the dust removal water tank 4 from the first exhaust pipe 6 squeezes the moisture of the dust removal water tank 4 through the water spray pipe 11 and the two-way 17 into the flushing pipe 15 to flush the dust extraction pipe 10 from top to bottom. Avoid the blockage of dust inside the pipe;

At the same time, the water in the dedusting water tank 4 will also be squeezed by the air pressure and flow out from the water return pipe 13 to scour the mud that may settle in the water return pipe 13 . The above-mentioned dirty water mixed with dust is directly discharged through the dust discharge port 314 . Intermittent switching between the pipe cleaning mode and the dust removal mode can ensure the stable operation of the dust removal mechanism 3. The present invention improves the surveying and mapping environment, saves resources, and improves the accuracy of surveying and mapping.

Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Claims (8)

1. The utility model provides a city mapping car is used in geographic information collection with dust removal function, includes organism (1) and installs surveying appearance (2) on organism (1), its characterized in that: the device also comprises a dust removal mechanism (3), a dust removal water tank (4) and a make-up water tank (5);

the dust removal mechanism (3) is arranged at the bottom of the machine body (1) and comprises a dust removal bin (301) and a power bin, the upper end of the dust removal bin (301) is connected with a dust extraction port (303) which is just opposite to a surveying and mapping port of the surveying and mapping instrument (2) through a dust extraction pipe (10), and the bottom of the dust removal bin (301) is hinged with a dust exhaust bottom cover (304);

the dust removal device is characterized in that an air cylinder (305) and a piston (306) arranged in the air cylinder (305) are arranged in the power bin, the piston (306) is driven by a power device (311) to move, the middle of the piston (306) is hollow, a one-way air inlet valve (307) is arranged at the hollow part, the piston (306) divides the interior of the air cylinder (307) into an air inlet bin (309) and an air outlet bin (310), the air inlet bin (309) is connected with the top of the dust removal bin (301) through an air inlet pipe (308), the air outlet bin (310) is connected with the dust removal water tank (4) through a first air outlet pipe (6), and a first one-way air outlet valve (7) is arranged on the first air outlet pipe (6); the exhaust bin (310) is further connected with a second exhaust pipe (8), a second one-way exhaust valve (9) is arranged on the second exhaust pipe (8), the exhaust end of the second exhaust pipe (8) is over against the bottom of the dust exhaust bottom cover (304), and when the airflow in the second exhaust pipe (8) is large enough, the normally open dust exhaust bottom cover (304) can be closed;

the dust removal device is characterized in that the upper end of the dust removal bin (301) is connected with the dust removal water tank (4) through a water spray pipe (11), a first electromagnetic valve (12) is arranged on the water spray pipe (11), the dust removal water tank (4) is connected with the upper end side wall of the dust extraction pipe (10) through a flushing pipe (15), a second electromagnetic valve (16) is arranged on the flushing pipe (15), the lower section of the dust removal bin (301) is connected with the dust removal water tank (4) through a water return pipe (13), and the upper end of the dust removal water tank (4) is connected with the water supplement tank (5) through a water supplement pipe (14).

2. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the interior of the dust removal bin (301) is provided with a separation filter screen (312), and the lower end of the dust extraction pipe (10) extends into the dust removal bin (301) below the separation filter screen (304).

3. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the middle part of the water spraying pipe (11) is connected with a two-way (17), two ends of the flushing pipe (15) are connected between the side wall of the dust extraction pipe (10) and the two-way (17), the first electromagnetic valve (12) is arranged on the water spraying pipe (11) between the two-way (17) and the dust removal bin (301), and the second electromagnetic valve (16) is arranged on the flushing pipe (15).

4. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the dust removal bin is characterized in that a dust discharge port (314) is formed in the lower portion of the dust removal bin (301), the dust discharge bottom cover (304) is hinged to the lower portion of one side of the dust discharge port (314), an inclined supporting plate (315) is arranged at the lower end of the dust discharge bottom cover (304), and the inclined supporting plate (315) is used for supporting the dust discharge bottom cover (304) above.

5. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the upper end of the dust removal bin (301) is provided with a water spray head (313), and the water outlet end of the water spray pipe (11) is connected to the water spray head (313).

6. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the power device (311) is a linear motor.

7. The city mapping car for geographic information collection with dust removal function of claim 4, wherein: dust exhaust mouth (314) set up to leak hopper-shaped, be provided with filter screen end cover (316) on the lower extreme lateral wall of dust exhaust mouth (314), the end connection of intaking of wet return (13) is in on filter screen end cover (316).

8. The city mapping car for geographic information collection with dust removal function of claim 1, characterized in that: the water outlet of the flushing pipe (15) is inclined downwards.

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