Surveying and mapping table and application of surveying and mapping table on vehicle

Abstract

The invention provides a surveying and mapping table and application of the surveying and mapping table on a vehicle, and relates to the field of surveying and mapping instruments. The first enclosure is sleeved with the second enclosure, and the second enclosure and the first enclosure are combined to form an annular cavity; two opposite second bearing frames for bearing the first enclosure and the second enclosure are arranged in the annular cavity; a first fence extension part is arranged at the bottom edge of the first fence, and the slope surface of the first fence extension part directly faces the cavity opening of the annular cavity; a spacer bush extending into the annular cavity is arranged on the slope surface, directly facing the opening of the annular cavity, of the extension part of the first fence, and the annular cavity is divided into two air inlet channels by the spacer bush; according to the invention, the two cooperative air inlet channels are arranged in the annular cavity, the air flow change caused by the movement of the surveying and mapping table is basically measured, an air curtain used for blocking raindrops and dust can be formed outside the first enclosure by adjusting the air inflow in the two air inlet channels, and the interference problem of external factors such as dirt on information collected by the lens is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of surveying instruments, in particular to a surveying table and application of the surveying table on a vehicle. BACKGROUND

[0002] The amount of light is an important parameter related to surveying accuracy. Therefore, in addition to adjusting parameters such as aperture, sensitivity, and shutter on the machine level, water and dust attached to the lens surface are important interference factors affecting the amount of light. In particular, in an open and mobile environment, interference factors are infinitely magnified. That is, airflow changes caused by movement easily form complex fluid motion around the lens in rainy weather, causing raindrops or even dust to adhere to the lens surface. For this reason, a wiper or even a water gun is provided to clean the lens in a mobile environment. Assuming that the above cleaning methods have stable cleaning effects, the cleaning process, including the reciprocating motion of the wiper and the water jet process, will constitute secondary interference in the lens information collection process, affecting surveying quality. SUMMARY

[0003] The present application aims to provide a surveying table and application of the surveying table on a vehicle to solve the above technical problems.

[0004] To solve the above technical problems, the present application adopts the following technical solutions:

[0005] The surveying table comprises: a first enclosure, a fan inside the first enclosure;

[0006] A second enclosure, the second enclosure encircles the first enclosure and forms a ring cavity with the first enclosure;

[0007] The ring cavity has two second receiving frames opposite to each other and used for receiving the first enclosure and the second enclosure;

[0008] The first enclosure bottom edge is provided with a first enclosure extension, and the slope surface of the first enclosure extension faces the cavity opening of the ring cavity;

[0009] The slope surface of the first enclosure extension facing the cavity opening of the ring cavity has a spacer extending into the ring cavity, and the spacer separates the ring cavity into two air inlets;

[0010] Among them, the one close to the first enclosure is an inner air inlet, and the one close to the second enclosure is an outer air inlet;

[0011] The inner air inlet is used for guiding the air flow of the fan into the ring cavity;

[0012] The outer air inlet is used for guiding air into the ring cavity, and the air in the inner air inlet forms a wind curtain for blocking raindrops and dust outside the first enclosure in combination with the outer air inlet.

[0013] Preferably, the air flow rate in the inner air inlet is inversely related to the air flow rate in the outer air inlet.

[0014] Preferably, at least one of the two opposite second receiving frames is directly opposite the wind surface.

[0015] Preferably, the second receiving frame comprises a frame body located in the outer air inlet, which is connected to the spacer sleeve and extends downward to the first enclosure extension;

[0016] The frame body has a chamber, and the chamber sequentially comprises a return spring, a sliding block, and an air bag from top to bottom, wherein the sliding block is used to connect the return spring and the air bag;

[0017] The part of the frame body extending to the first enclosure extension has an air port communicating with the air bag, which is used to guide air into the air bag, so that the sliding block slides along the frame body.

[0018] Preferably, the sliding block is directly opposite the first enclosure, and the first enclosure is provided with a flexible rod, both ends of which penetrate through the first enclosure and extend to the two sliding blocks, so that when the sliding block directly opposite the wind surface slides along the height direction of the frame body, the flexible rod is inclined in the first enclosure with the sliding block directly opposite the wind surface as the fulcrum.

[0019] Preferably, a sleeve for trapping the flexible rod is arranged at the flexible rod, and a sliding sleeve is slidingly arranged at the sleeve;

[0020] Both ends of the sleeve are terminal ends;

[0021] Both sides of the sliding sleeve are a first spring and a second spring sleeved at the sleeve;

[0022] Wherein, one end of the first spring contacts one of the terminal ends and the sleeve, and one end of the second spring contacts the other terminal end and the sleeve, and when the flexible rod is inclined in the first enclosure, the sliding sleeve slides towards either terminal end at the sleeve.

[0023] Preferably, the top of the first enclosure is provided with a main machine, and a motor seat for mounting the fan is arranged below the first enclosure, wherein the outer periphery of the motor seat is arrayed with second through holes for guiding air into the motor seat.

[0024] Preferably, a plurality of first through holes are arrayed at the joint of the first enclosure and the first enclosure extension, which are used to guide the air increased by the fan into the inner air inlet.

[0025] Preferably, a partition plate is arranged above the fan, which is fixed in the first enclosure to limit the air increased by the fan to enter the inner air inlet only through the partition plate.

[0026] The application of the surveying and mapping platform on a vehicle comprises installing the surveying and mapping platform on the top of the vehicle.

[0027] The beneficial effects of the present application are:

[0028] The present application can form a wind curtain for blocking raindrops and dust outside the first enclosure by adjusting the air intake in the two air inlets, and basically mapping the airflow changes caused by the moving platform, thereby reducing the interference of external factors such as dirt on the lens in collecting information. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the mapping platform;

[0030] Figure 2 It is a structural schematic diagram of the second enclosure after being separated from the main body;

[0031] Figure 3 It is Figure 1 It is a structural schematic diagram of the first enclosure and the second enclosure after being side cut in the mapping platform shown;

[0032] Figure 4 It is Figure 3 It is a structural schematic diagram of the main machine after being separated from the main body;

[0033] Figure 5 It is Figure 4 It is a partial enlarged schematic diagram of the variable resistor in the main machine;

[0034] Figure 6 It is Figure 3 It is a structural schematic diagram of the main machine and the partition plate after being separated from the main body;

[0035] Figure 7 It is Figure 4 It is a partial enlarged schematic diagram of the second receiving frame in the main machine;

[0036] Figure 8 It is Figure 7 It is a side cut structural schematic diagram of the second receiving frame in the main machine;

[0037] Reference signs: 1, main machine; 2, first enclosure; 3, second enclosure; 4, motor seat extension; 5, first receiving frame; 6, first enclosure extension; 7, second receiving frame; 71, groove; 72, return spring; 73, sliding block; 74, air pocket; 75, frame main body; 76, air port; 8, lens; 9, partition sleeve; 10, first through hole; 11, partition plate; 12, soft rod; 13, first spring; 14, sleeve; 15, sliding sleeve; 16, second spring; 17, motor seat; 18, second through hole; 19, motor; 20, fan blade. DETAILED DESCRIPTION

[0038] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0039] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0040] Example 1

[0041] This embodiment proposes a surveying station, such as Figures 1-8 As shown, the surveying platform includes a first enclosure 2 and a second enclosure 3 that surrounds the first enclosure 2 and forms an annular cavity with the first enclosure 2.

[0042] Please see Figure 3 and Figure 4 The second enclosure 3 is fixed to the first enclosure 2 based on two opposing first support frames 5 and two opposing second support frames 7.

[0043] Please see Figures 2-4 The bottom of the first enclosure is provided with a first enclosure extension 6, the slope of the first enclosure extension 6 is facing the cavity opening of the annular cavity, and the slope of the first enclosure extension 6 facing the cavity opening of the annular cavity has a spacer 9 extending into the annular cavity.

[0044] The partition 9 divides the annular cavity into two air intakes;

[0045] Specifically, the one closer to the first enclosure 2 is the internal air intake, and the one closer to the second enclosure 3 is the external air intake;

[0046] Thus, the airflow changes caused by the moving surveying station will stimulate air outside the surveying station to enter the annular cavity through the external air intake and form an air curtain around the first enclosure 2 to block raindrops and dust.

[0047] As explained above, only when the surveying station is in motion can an air curtain be formed around the first enclosure 2 to block raindrops and dust. In other words, when the surveying station is stationary, there is not enough airflow in the external air intake to form an air curtain, and raindrops and dust are still interference factors.

[0048] Please see Figure 6 and Figure 7 In this embodiment, a motor base 17 (connected to the first enclosure extension 6) is provided below the first enclosure 2, and a fan (including a motor 19 and fan blades 20 mounted on the main shaft of the motor 19) is installed inside the motor base 17. Additionally, a plurality of first through holes 10 are arrayed at the junction of the first enclosure 2 and the first enclosure extension 6. Thus, the combination...Figure 4 and Figure 5 As shown in FIG. 1, the baffle 11 arranged in the first enclosure 2 guides the air flow of the fan to enter the inner air inlet through the first through hole 10, so that the air in the inner air inlet enters the annular cavity when the surveying table is stationary, and further forms a wind curtain outside the first enclosure 2 for blocking raindrops and dust.

[0049] In this embodiment, the inner air inlet and the outer air inlet can work cooperatively. Specifically, the air flow in the outer air inlet is uncontrollable, while the air flow in the inner air inlet can be controlled based on the rotating speed of the fan. Therefore, when the wind curtain outside the first enclosure 2 is sufficient to block raindrops and dust, the air flow in the inner air inlet needs to be adjusted in combination with the air flow in the outer air inlet.

[0050] This embodiment provides two adjustment methods:

[0051] ①A wind speed meter is arranged in the outer air inlet to detect the air flow in the outer air inlet, and the rotating speed of the fan is adjusted to control the air flow in the inner air inlet.

[0052] ②At least one of the two opposite second supporting frames 7 faces the wind surface.

[0053] Please refer to Figure 8 The second supporting frame 7 includes a frame body 75 located in the outer air inlet, which is connected with the baffle 9 and extends downward to the first enclosure extension 6.

[0054] Further, the frame body 75 supports the second enclosure 3, and the baffle 9 connected with the frame body 75 is connected with the first enclosure extension 6, and the first enclosure extension 6 is connected with the first enclosure 2. Therefore, the first function of the frame body 75 is to connect the first enclosure 2 and the second enclosure 3.

[0055] The second function of the frame body 75 is to install the reset spring 72, the sliding block 73 and the air bag 74. Specifically, the frame body 75 has a cavity, and the reset spring 72, the sliding block 73 and the air bag 74 are arranged in the cavity from top to bottom. The one end of the reset spring 72 and the air bag 74 respectively abuts against two opposite cavity ends in the cavity, and the sliding block 73 is used to connect the reset spring 72 and the air bag 74 (a groove 71 is arranged on the side of the frame body 75 facing the first enclosure 2, and the sliding block 73 extends outward through the groove 71).

[0056] The part of the frame body 75 extending to the first enclosure extension 6 has an air port 76 communicating with the air bag 74, which is used to guide air into the air bag 74 to drive the sliding block 73 to slide along the frame body 75 based on the volume change of the air bag 74.

[0057] In combination with the above description, please refer to Figures 4-7The slider 73 is opposite to the first enclosure 2.

[0058] A soft rod 12 is arranged in the first enclosure 2, please refer to Figure 5 the enlarged view in the figure, the two ends of the soft rod 12 penetrate the first enclosure 2 and extend to the two sliders 73, so that when the slider 73 opposite to the wind surface slides along the height direction of the frame body 75, the slider 73 opposite to the wind surface is used as the fulcrum, and the soft rod 12 is inclined in the first enclosure 2.

[0059] The inclination of the soft rod 12 in the first enclosure 2 is the key technology to control the air flow rate in the inner air inlet, for the reason, please continue to refer to Figure 5 the enlarged view in the figure, the soft rod 12 is provided with a sleeve 14 for snaring the soft rod 12, and a sliding sleeve 15 is arranged in the sleeve 14;

[0060] The two ends of the sleeve 14 are wiring ends;

[0061] The two sides of the sliding sleeve 15 are respectively a first spring 13 and a second spring 16 sleeved on the sleeve 14;

[0062] Specifically, the two ends of the first spring 13 contact one of the wiring ends and the sleeve 14, and the two ends of the second spring 16 contact the other wiring end and the sleeve 14, and when the soft rod 12 is inclined in the first enclosure 2, the sliding sleeve 15 slides to the sleeve 14 towards any wiring end.

[0063] Combined with the above description that when the slider 73 opposite to the wind surface slides along the height direction of the frame body 75, the slider 73 opposite to the wind surface is used as the fulcrum, and the soft rod 12 is inclined in the first enclosure 2, the central region of the sleeve 14 is set as the region with the smallest resistance, and the two sides of the central region are set as the regions with gradually increasing resistance, so that when the soft rod 12 is inclined, the sliding sleeve 15 slides towards any wiring end, and the resistance gradually increases, and conversely, when the sliding sleeve 15 moves from the wiring end to the central region of the sleeve 14, the resistance gradually decreases, so that the fan circuit is connected with the wiring end, the power of the fan is adjusted by controlling the size of the resistance, and the air flow rate in the inner air inlet is controlled.

[0064] It should be noted that the size of the air bag 74 is positively correlated with the moving speed of the surveying platform, that is, the moving speed of the surveying platform is large, and correspondingly, the volume of the air bag 74 opposite to the wind surface is increased, and the inclination of the soft rod 12 in the first enclosure 2 is larger; conversely, when the surveying platform is stationary, the air bags 74 arranged in the two opposite frame bodies 75 are in the initial state, that is, the horizontal state, and in this state, the soft rod 12 is horizontal in the first enclosure 2.

[0065] The embodiment also needs to be explained as follows:

[0066] ①The motor seat 17 is arranged with a second through hole 18 for guiding air into the motor seat 17.

[0067] ②Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 , the host 1 sets the lens 8 in the area where the first enclosure 2 forms the air curtain.

[0068] ③The motor base 17 is provided with a motor base extension 4, which is combined with the vehicle roof or luggage rack, so that the whole surveying table can be fixed above the vehicle.

[0069] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0070] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A plotting table, characterized in that The utility model relates to a wind -proof device for vehicle roof, including: First enclosure, first enclosure has the fan in; Second enclosure, second enclosure traps first enclosure and combines first enclosure and forms ring cavity; Ring cavity has two opposite and used for receiving first enclosure and second enclosure second receiving frame; First enclosure bottom edge is provided with first enclosure extension, and the slope of first enclosure extension opposite ring cavity cavity mouth has the spacer sleeve extending to ring cavity, and the spacer sleeve divides ring cavity into two air inlet channels; Wherein, close to first enclosure is inner air inlet channel, and close to second enclosure is outer air inlet channel; Inner air inlet channel is used for guiding the air of fan flow increase to enter ring cavity; Outer air inlet channel is used for guiding air to enter ring cavity and combines the air in inner air inlet channel to form the air curtain for blocking raindrop and dust to first enclosure periphery. The air flow rate in inner air inlet channel and the air flow rate in outer air inlet channel are inversely related.

2. The plotting table of claim 1, wherein: At least one of the two opposite second receiving frames is opposite the wind surface.

3. The plotting table of claim 2, wherein: The second receiving frame includes a frame body located in the outer air inlet channel, which is connected to the spacer sleeve and extends downward to the first enclosure extension; 4. The plotting table of claim 3, wherein: The frame body has a chamber, and the chamber has, from top to bottom, a return spring, a sliding block, and an air bag, wherein the sliding block is used to connect the return spring and the air bag; The part of the frame body extending to the first enclosure extension has an air port communicating with the air bag, which is used to guide air into the air bag to make the sliding block slide along the frame body. The sliding block is opposite the first enclosure, and the first enclosure has a flexible rod inside, both ends of the flexible rod penetrating through the first enclosure and extending to the two sliding blocks, and when the sliding block opposite the wind surface slides along the height direction of the frame body, the flexible rod in the first enclosure is inclined with the sliding block opposite the wind surface as the fulcrum.

5. The plotting table of claim 4, wherein: A sleeve is arranged at the flexible rod to trap the flexible rod, and a sliding sleeve is slidingly arranged at the sleeve; 6. The plotting table of claim 5, wherein: Both ends of the sleeve are connection terminals; Both sides of the sliding sleeve are a first spring and a second spring sleeved on the sleeve; Wherein, both ends of the first spring contact one of the connection terminals and the sleeve, and both ends of the second spring contact the other connection terminal and the sleeve, and when the flexible rod in the first enclosure is inclined, the sliding sleeve slides towards either connection terminal at the sleeve. The top of the first enclosure is mounted with a host computer, and a motor seat for mounting the fan is arranged below the first enclosure, wherein a plurality of second through holes for guiding air into the motor seat are arranged on the outer periphery of the motor seat.

7. The plotting table of claim 1, wherein: A plurality of first through holes are arranged at the joint of the first enclosure and the first enclosure extension, which are used to guide the air of fan flow increase into the inner air inlet channel.

8. The plotting table of claim 7, wherein: A baffle is arranged above the fan, which is fixed in the first enclosure to limit the air of fan flow increase to enter the inner air inlet channel through the baffle.

9. The plotting table of claim 8, wherein: The utility model relates to a surveying and mapping platform for vehicle roof.

10. Use of a surveying table on a vehicle, characterized in that ​

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