A land surveying apparatus

Abstract

The application relates to the technical field of land surveying and mapping, in particular to a land surveying and mapping device; the device comprises a total station body and a foot stool arranged below the total station body; the upper end of the foot stool is rotationally connected with a top disc; the lower end of the foot stool is slidingly connected with a support; the film plate and the connecting plate are arranged, the film plate and the connecting plate can surround the total station body, raindrops blown by external wind are blocked from falling on the total station body, the total station body is prevented from being damaged by the rainwater, the normal use of the total station body and the accuracy of the measurement results are ensured, the film plate and the connecting plate are both made of transparent polyimide film materials, so that a user can observe the operation keys of the total station body through the film plate and the connecting plate, the user is facilitated to operate, and in addition, the polyimide film has good chemical stability, so that the film plate and the connecting plate are resistant to corrosion of acid and alkali impurities in the rainwater, and the service life of the film plate and the connecting plate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of land surveying and mapping, in particular to a land surveying and mapping device. BACKGROUND

[0002] The total station body is a total station electronic distance meter, which is a high-tech measuring instrument integrating light, machine and electricity. It is a surveying and mapping instrument system integrating horizontal angle, vertical angle, distance (slope distance, horizontal distance) and height difference measurement. Compared with an optical theodolite, an electronic theodolite replaces an optical scale with a photoelectric scanning scale, and replaces manual optical micro-measurement reading with automatic recording and display reading, so that the angle measurement operation is simplified and reading errors can be avoided. Since the instrument can complete all measurements at the station with one installation, it is called a total station body. It is widely used in precise engineering measurement or deformation monitoring fields of large ground buildings and underground tunnels.

[0003] As a precise measuring instrument, the total station body usually considers certain waterproof performance during design and manufacturing to adapt to different working environments. However, with frequent use of the total station body, its waterproof performance will gradually decrease. This is because during daily use, the instrument will be subjected to various transportation bumps and friction, causing slight wear or loosening at the seal of the shell. At the same time, long-term use and natural aging will also reduce the performance of the sealing material, so that the original good waterproof sealing effect of the instrument is poor, and rainwater is more likely to penetrate into the instrument. After the rainwater enters the total station body, it will cause serious damage to the internal circuit. In order to reduce the influence of rainwater on the total station body, workers often hold an umbrella, tie and fix the umbrella on the tripod, and other ways to protect the total station body from rain. Although it can protect the total station body to a certain extent, it is not convenient in actual application.

[0004] In view of this, in order to overcome the above technical problems, the present application provides a land surveying and mapping device, which solves the above technical problems. SUMMARY

[0005] In order to make up for the shortcomings of the prior art, the present application provides a land surveying and mapping device. The thin film plate and the connecting plate can surround the total station body, thereby blocking the rainwater blown by the wind from falling on the total station body, avoiding damage to the instrument by rainwater, and ensuring the normal use of the total station body and the accuracy of the measurement results. Moreover, the thin film plate and the connecting plate are made of transparent polyimide film material, so that the user can observe the operation keys of the total station body through the thin film plate and the connecting plate, which is convenient for the user to operate. In addition, the polyimide film has good chemical stability, so the thin film plate and the connecting plate are resistant to corrosion by acid and alkali impurities in rainwater, prolonging the service life of the thin film plate and the connecting plate.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a land surveying and mapping equipment, comprising: a total station body and a foot stool installed below the total station body; the upper end of the foot stool is rotatably connected with a top disc; the lower end of the foot stool is slidably connected with a support,

[0007] a base is located on the upper end of the top disc; the base and the top disc are both provided with threaded holes in the center; the total station body is installed on the upper end of the base; both sides of the base are slidably connected with mounting brackets; one side of the base is threadedly connected with a pressing block; the upper end of the mounting bracket is fixedly installed with a shielding plate; the side of the mounting bracket away from the total station body is installed with a film plate; the film plate is made of transparent polyimide film material; the side of the two mounting brackets close to each other is provided with a strip-shaped groove; the strip-shaped groove is slidably connected with a corrugated plate; the lower end of the corrugated plate is fixedly connected with the base.

[0008] Preferably, the upper end of the mounting bracket is provided with a U-shaped groove; the bottom of the U-shaped groove is provided with a through groove; the U-shaped groove is slidably connected with a slide rod; the slide rod is provided with two groups; the side of the two groups of slide rods away from each other is fixedly connected with the film plate; one end of the film plate away from the slide rod of one group is slidably and sealingly connected in the through groove; the inside of the shielding plate is provided with a cavity; the inner wall of the cavity is rotatably connected with a rotating rod; the end of the film plate away from the slide rod of the other group is fixedly connected with the rotating rod; a sealing ring is rotatably installed between the two groups of slide rods; the sealing ring is threadedly connected with the lens of the total station body; one end of the sealing ring away from the total station body is fixedly connected with a plane mirror.

[0009] Preferably, the side of the slide rod away from the film plate is embedded with a magnetic sheet; the magnetic poles of the two adjacent magnetic sheets are opposite; the sidewall of the film plate is filled with strontium ferrite magnetic powder.

[0010] Preferably, the two sides of the total station body are provided with connecting plates; the connecting plates are fixedly connected with the mounting brackets; the end of the corrugated plate away from the base is fixedly connected with the connecting plate; the surface of the two connecting plates is provided with a circular groove; the circular groove is used to install a rubber glove communicated therewith.

[0011] Preferably, the outer wall of the sealing ring is fixedly connected with an annular air bag; the inner wall of the sealing ring is provided with an air hole communicated with the annular air bag.

[0012] Preferably, the air hole is obliquely arranged; the end of the air hole away from the annular air bag is obliquely directed towards the plane mirror.

[0013] Preferably, the support is provided below with a storage rack; the storage rack is connected with the foot stool through a connecting rod at the upper end; the upper end of the storage rack is installed with a corrugated air bag; the corrugated air bag is connected with the annular air bag through a hose; the surface of the corrugated air bag is provided with an air inlet.

[0014] Preferably, the upper end of the shelf is fixedly connected with an electric push rod; the electric push rod is located in the corrugated air bag; the upper end of the electric push rod is connected with the corrugated air bag; and the air inlet and the hose are both provided with a one-way valve.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. The present application sets up the film plate and the connecting plate, so that the film plate and the connecting plate can surround the total station body, thereby blocking the rain blown by the wind from falling on the total station body, avoiding the damage of the rain to the instrument, and further ensuring the normal use of the total station body and the accuracy of the measurement results; and the film plate and the connecting plate are both made of transparent polyimide film material, so that the user can observe the operation keys of the total station body through the film plate and the connecting plate, so as to facilitate the user operation; in addition, the polyimide film has good chemical stability, so that the film plate and the connecting plate are resistant to corrosion of acid and alkali impurities in the rain, so that the service life of the film plate and the connecting plate is improved.

[0017] 2. The present application sets up the corrugated air bag and the electric push rod, so that the electric push rod pushes the corrugated air bag to expand and contract during the extension and contraction of the electric push rod, so that the gas in the contracted corrugated air bag is transported into the annular air bag, so that the gas in the annular air bag is inclined to be sprayed to the plane mirror through the air holes in the inner wall of the sealing ring, so that the rain falling on the plane mirror is pushed away from the plane mirror by the airflow sprayed by the air holes, so as to ensure the cleanliness of the surface of the plane mirror, improve the light transmittance of the plane mirror, and improve the clarity of the observation of the operator, and further ensure the accurate alignment of the crosshair center of the lens to the target; so that the practicality of the present application is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in combination with the drawings and embodiments.

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is Figure 1 is an enlarged view of A in the figure;

[0021] Figure 3 is a partial sectional view of the present application;

[0022] Figure 4 is Figure 3 is an enlarged view of B in the figure;

[0023] Figure 5 is Figure 3 is an enlarged view of C in the figure;

[0024] Figure 6 is a perspective view of the film plate used in the present application;

[0025] In the figure: 1, total station body; 11, base; 12, mounting frame; 121, abutting block; 122, strip-shaped groove; 123, corrugated plate; 124, U-shaped groove; 125, through groove; 126, connecting plate; 127, circular groove; 13, shielding plate; 131, cavity; 132, rotating rod; 14, film plate; 141, strontium ferrite magnetic powder; 15, sliding rod; 151, magnetic sheet; 16, sealing ring; 161, plane mirror; 162, annular air bag; 163, air hole; 2, foot stand; 21, top disc; 22, support; 23, storage rack; 231, connecting rod; 24, corrugated air bag; 241, air inlet; 25, hose; 26, electric push rod; 27, one-way valve. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects realized by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0027] As Figures 1 to 6 shown, the land surveying and mapping equipment comprises a total station body 1 and a foot stand 2 installed below the total station body 1; the foot stand 2 is rotationally connected with a top disc 21 at the upper end; the foot stand 2 is slidingly connected with a support 22 at the lower end; one side of the support 22 is rotationally connected with a bolt,

[0028] a base 11 is located at the upper end of the top disc 21; the base 11 and the top disc 21 are both provided with threaded holes at the center; the total station body 1 is installed at the upper end of the base 11; the base 11 is slidingly connected with mounting frames 12 at both sides; one side of the base 11 is threadedly connected with an abutting block 121; the mounting frames 12 are fixedly installed with shielding plates 13 at the upper end; the mounting frames 12 are installed with film plates 14 away from the total station body 1; the film plates 14 are made of transparent polyimide film material; strip-shaped grooves 122 are formed on the sides of the mounting frames 12 close to each other; the strip-shaped grooves 122 are slidingly connected with corrugated plates 123; the lower end of the corrugated plates 123 is fixedly connected with the base 11.

[0029] As one of the embodiments of the present application, the upper end of the mounting frame 12 is provided with a U-shaped groove 124; the bottom of the U-shaped groove 124 is provided with a through groove 125; the U-shaped groove 124 is slidably connected with a slide rod 15; the slide rod 15 is provided with two groups; the slide rod 15 is fixedly connected with the film plate 14 on the side away from each other; one end of the film plate 14 away from the slide rod 15 is slidably and sealingly connected in the through groove 125; the inside of the shielding plate 13 is provided with a cavity 131; the inner wall of the cavity 131 is rotatably connected with a rotating rod 132; the other end of the film plate 14 away from the slide rod 15 is fixedly connected with the rotating rod 132; the sealing ring 16 is rotatably installed between the two groups of slide rods 15; the sealing ring 16 is threadedly connected with the lens of the total station body 1; the end of the sealing ring 16 away from the total station body 1 is fixedly connected with a plane mirror 161.

[0030] As one of the embodiments of the present application, the side of the slide rod 15 away from the film plate 14 is inlaid with a magnetic sheet 151; the magnetic poles of the adjacent two magnetic sheets 151 are opposite; the sidewall of the film plate 14 is filled with strontium ferrite magnetic powder 141.

[0031] As one of the embodiments of the present application, the total station body 1 is provided with a connecting plate 126 on both sides; the connecting plate 126 is fixedly connected with the mounting frame 12; the corrugated plate 123 is fixedly connected with the connecting plate 126 at the end away from the base 11; the surface of the two connecting plates 126 is provided with a circular groove 127; the circular groove 127 is used for installing a rubber glove in communication therewith;

[0032] When working, the total station body 1 is a kind of precision measuring instrument, and when designing and manufacturing, certain waterproof performance is usually considered to adapt to different working environments;However, with the frequent use of the total station body 1, its waterproof performance will gradually decrease;This is because in the daily use process, the instrument will be subjected to various transportation bumps, friction, resulting in slight wear or looseness at the seal of the shell;At the same time, long-term use and natural aging also reduce the performance of the sealing material;So that the good waterproof sealing effect of the instrument is poor, and rainwater is more likely to penetrate into the instrument;After the rainwater enters the total station body 1, it will cause serious damage to the internal circuit;In order to reduce the influence of rainwater on the total station body 1, the staff often holds an umbrella, and ties and fixes the umbrella on the tripod 2 to shield the total station body 1, which can protect the total station body 1 to a certain extent, but there are problems of inconvenient use in actual application;

[0033] The film plate 14 and the connecting plate 126 are arranged to surround the total station body 1, so that the raindrops blown by the wind from the outside are blocked from falling on the total station body 1, avoiding damage to the instrument by the rain, thereby ensuring the normal use of the total station body 1 and the accuracy of the measurement results. Moreover, the film plate 14 and the connecting plate 126 are both made of transparent polyimide film material, so that the user can observe the operation keys of the total station body 1 through the film plate 14 and the connecting plate 126, facilitating the user's operation. In addition, the polyimide film has good chemical stability, so the film plate 14 and the connecting plate 126 are resistant to corrosion by acid and alkali impurities in the rain, prolonging the service life of the film plate 14 and the connecting plate 126.

[0034] In the initial state, the mounting frame 12 drives the connecting plate 126 to contact the upper end surface of the base 11, at this time, the corrugated plate 123 is in a compressed state, the user first places the foot stand 2 stably on the ground, so that the top disc 21 at the upper end of the foot stand 2 is parallel to the ground, then places the base 11 stably on the top disc 21 of the foot stand 2, so that the base 11 is opposite to the threaded hole on the top disc 21, then places the total station body 1 on the upper end of the base 11, at this time, the base 11, the top disc 21 and the bolt hole of the total station body 1 are on the same central axis, then uses the threaded fixing block to pass through the bolt hole of the base 11, the top disc 21 and the total station body 1 from the lower end of the top disc 21, so that the base 11, the top disc 21 and the total station body 1 are fixed; then pull the mounting frame 12 connected with the base 11 to rise; because the two mounting frames 12 are fixedly connected through the connecting plate 126, during the rising of the mounting frame 12, the mounting frame 12 drives the connecting plate 126 to rise, so that the connecting plate 126 drives the corrugated plate 123 fixedly connected at the lower end to rise, so that the corrugated plate 123 in the compressed state is stretched, because the side of the mounting frame 12 close to the connecting plate 126 is provided with a strip-shaped groove 122, and the corrugated plate 123 is in sliding sealing contact with the groove bottom of the strip-shaped groove 122, so that the corrugated plate 123 is in sliding sealing contact with the groove bottom of the strip-shaped groove 122 during the stretching of the corrugated plate 123; when the rain outside drops on the corrugated plate 123, the rain will fall along the corrugated surface of the corrugated plate 123 to the base 11 and remain along the edge of the base 11, so that the corrugated plate 123 slidingly and sealingly connected in the strip-shaped groove 122 can completely block the rain outside from flowing into the center of the base 11 from both sides of the base 11, avoiding the rain outside from wetting the total station body 1; when the upper end of the mounting frame 12 passes the upper end surface of the total station body 1, at this time, the user rotates the abutting block 121, so that the abutting block 121 threadedly connected with the base 11 can continuously approach the mounting frame 12 until the abutting block 121 contacts the mounting frame 12, so that the abutting block 121 abuts against the mounting frame 12, so that the mounting frame 12 is fixed on the base 11 under the friction resistance of the abutting block 121; then the user prevents the shielding plate 13 on the upper end of the mounting frame 12, and the user fixes the shielding plate 13 on the upper end of the mounting frame 12 by using the bolt;

[0035] Before the shielding plate 13 is fixed with the mounting frame 12, the slide rod 15 connected with the shielding plate 13 is pulled, so that the slide rod 15 pulls the film plate 14 in the cavity 131 connected with it to extend out of the cavity 131, and finally the slide rod 15 connected with the shielding plate 13 is inserted into the U-shaped groove 124 of the mounting frame 12, and the slide rod 15 is pushed downward, so that the slide rod 15 connected with the shielding plate 13 drives the film plate 14 in the cavity 131 to slide in the U-shaped groove 124; after the shielding plate 13 is fixed with the mounting frame 12, the slide rod 15 at the bottom of the U-shaped groove 124 is pulled, so that the slide rod 15 at the bottom of the U-shaped groove 124 drives the film plate 14 in the through groove 125 to move along the U-shaped groove 124 to the direction close to the shielding plate 13, so that the two slide rods 15 are close to each other, and when the two slide rods 15 are completely contacted, the magnetic sheets 151 on the two slide rods 15 close to each other are in the mutual adsorption state, so that the two slide rods 15 are tightly attached under the adsorption of the magnetic sheets 151, so that the two slide rods 15 drive the connected film plate 14 to shield the front and rear sides of the mounting frame 12, and the shielding plate 13 and the base 11 shield the total station body 1 in the upward and downward directions, thereby realizing the wrapping and protection of the total station body 1; the side wall of the film plate 14 is filled with strontium ferrite magnetic powder 141; since the mounting frame 12 is made of iron material, when the film plate 14 slides in the U-shaped groove 124, the film plate 14 will generate a magnetic adsorption force on the groove wall of the U-shaped groove 124 through the strontium ferrite magnetic powder 141, so that the film plate 14 is tightly attached with the side wall of the U-shaped groove 124, so that when the rain hits the film plate 14, the rainwater sliding along the surface of the film plate 14 will not flow out from the gap between the film plate 14 and the U-shaped groove 124; thereby ensuring the rain blocking effect of the film plate 14; the practicability of the application is effectively improved;

[0036] When it rains heavily, the rain blocked by the film plate 14 can form a flowing rain curtain on the film plate 14, and the formed rain curtain can affect the detection and measurement of the total station body 1; for example, the rain curtain can block the line of sight of the total station body 1 to some extent; for angle measurement that needs to accurately aim at the target, the rain curtain can make the target unclear, so that the operator is difficult to accurately aim at the target through the crosshair center of the lens, thereby causing aiming error; resulting in inaccurate angle data obtained by measurement; for this purpose, the sealing ring 16 is arranged, so that the sealing ring 16 is clamped with the lens of the total station body 1, and the two slide rods 15 close to the lens of the total station body 1 are in the shape of an arch bridge; when the two slide rods 15 are fitted, the two arch-shaped slide rods 15 clamp the sealing ring 16, at this time the sealing ring 16 is rotatably connected with the two film plates 14 through the slide rods 15, so that the end of the sealing ring 16 away from the total station body 1 passes through the film plate 14, so that the rain curtain on the film plate 14 can only flow along the outer wall of the sealing ring 16, greatly reducing the interference of the lens by the rain curtain on the film plate 14, so as to ensure that the lens can clearly observe the target through the sealing ring 16; improve the accuracy of the measured angle data; the reason why the flat mirror 161 is installed at the end of the sealing ring 16 away from the lens is to prevent rainwater from being blown by the wind and falling into the sealing ring 16, thereby preventing rainwater from falling on the lens of the total station body 1 through the sealing ring 16, preventing rainwater from wetting the lens of the total station body 1, and thereby ensuring the use effect and service life of the lens.

[0037] The circular groove 127 is provided, and a rubber glove in communication with the circular groove 127 is installed in the circular groove 127, so that the user inserts the hand into the rubber glove through the circular groove 127, and the user operates the keys of the total station body 1 in the base 11 through the rubber glove, thereby avoiding the user repeatedly opening the film plate 14, preventing rainwater from falling on the surface of the total station body 1 through the gap between the opened film plates 14, and even penetrating into the instrument, thereby ensuring the rain protection effect of the film plate 14 on the total station body 1, and thereby ensuring the normal use of the total station body 1 and the accuracy of the measurement results.

[0038] As an embodiment of the present application, the outer wall of the sealing ring 16 is fixedly connected with an annular air bag 162; and the inner wall of the sealing ring 16 is provided with a gas hole 163 in communication with the annular air bag 162.

[0039] As an embodiment of the present application, the gas hole 163 is inclined; and the end of the gas hole 163 away from the annular air bag 162 is inclined toward the flat mirror 161.

[0040] As one embodiment of the present application, the rack 22 is provided with a storage rack 23; the storage rack 23 is connected with the foot stool 2 through the upper end connecting rod 231; the upper end of the storage rack 23 is installed with a corrugated air bag 24; the corrugated air bag 24 is connected with the annular air bag 162 through a hose 25; the corrugated air bag 24 is provided with an air inlet 241 on the surface.

[0041] As one embodiment of the present application, the upper end of the storage rack 23 is fixedly connected with an electric push rod 26; the electric push rod 26 is located in the corrugated air bag 24; the upper end of the electric push rod 26 is connected with the corrugated air bag 24; the air inlet 241 and the hose 25 are both installed with a one-way valve 27;

[0042] When working, when the terrain is measured, for the terrain such as mountain slope and mountain body with a certain slope, in order to obtain complete terrain data, the lens needs to be tilted upward; in this way, the points at different height positions of the mountain slope can be measured, and then an accurate topographic map can be drawn; when the lens needs to be tilted upward, the two slide rods 15 in the U-shaped groove 124 are only pushed upward, so that the slide rods 15 drive the sealing ring 16 to rise, and the sealing ring 16 connected with the lens can be tilted upward; when the sealing ring 16 is tilted upward, rainwater from outside will inevitably fall on the plane mirror 161 due to wind blowing, so that the rainwater continuously accumulates on the plane mirror 161, and the accumulated rainwater will refract light, which affects the accurate alignment of the crosshair center of the lens to the target;

[0043] Therefore, the present application sets the corrugated air bag 24 and the electric push rod 26, so that the electric push rod 26 drives the corrugated air bag 24 to expand and contract during the extension and contraction of the electric push rod 26, the corrugated air bag 24 that is contracted transports gas into the annular air bag 162, the gas in the annular air bag 162 is inclinedly sprayed to the plane mirror 161 through the air holes 163 in the inner wall of the sealing ring 16, the rainwater falling on the plane mirror 161 is pushed away from the plane mirror 161 by the airflow sprayed by the air holes 163, so as to ensure the cleanliness of the surface of the plane mirror 161, improve the light transmission of the plane mirror 161, and improve the clarity of the observation of the operator, thereby ensuring the accurate alignment of the crosshair center of the lens to the target, and effectively improving the practicability of the present application;

[0044] When rainwater falls on the plane mirror 161, blurring the target observed by the staff through the lens, the user simply controls the electric actuator 26 to repeatedly extend and retract. During extension, the electric actuator 26 pushes the corrugated airbag 24 to expand, increasing the internal space and reducing the air pressure. This pressure difference allows outside air to enter the airbag 24 through the air inlet 241. When the electric actuator 26 retracts, it pulls the corrugated airbag 24 to contract, causing... The gas inside the corrugated airbag 24 is compressed. Because both the air inlet 241 and the hose 25 are equipped with one-way valves 27, the gas inside the corrugated airbag 24 cannot be ejected through the air inlet 241. Instead, the gas inside the corrugated airbag 24 can only flow into the annular airbag 162 through the hose 25. The gas entering the annular airbag 162 will then be ejected through the air hole 163 connected to the annular airbag 162. Since the end of the air hole 163 away from the annular airbag 162 faces the plane mirror 161, the air ejected from the air hole 163 can blow onto the plane mirror. On the plane mirror 161, rainwater falling on the plane mirror 161 will flow along the edge of the plane mirror 161 to the inner wall of the sealing ring 16 under the blowing of the airflow. Since the plane mirror 161 is fixed inside the sealing ring 16, the airflow sprayed into the sealing ring 16 will be blocked by the plane mirror 161, so that the blocked airflow can only be sprayed out from the ring opening of the sealing ring 16. Thus, the gas sprayed out from the ring opening of the sealing ring 16 will carry the rainwater that has entered the sealing ring 16 out of the sealing ring 16. At the same time, the airflow sprayed out from the ring opening of the sealing ring 16 will push the outside closer to the sealing ring 16. The rainwater is kept away from the sealing ring 16, so that the gas ejected from the opening of the sealing ring 16 can block the rainwater falling into the sealing ring 16, reducing the amount of rainwater falling into the sealing ring 16 and preventing rainwater from falling on the plane mirror 161. This improves the light transmittance of the plane mirror 161, thereby improving the clarity of the operator's observation and ensuring that the center of the crosshair of the lens is accurately aligned with the target. The shelf 23 is designed to facilitate the connection between the corrugated tube and the tripod 2, so that the corrugated airbag 24 can be carried, thereby effectively improving the practicality of the invention.

[0045] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing the present invention and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and should not be construed as indicating or implying relative importance.

[0046] The foregoing merely illustrates the principles of the application and application of its more prominent features. Those skilled in the art will appreciate that the application is not limited to the embodiments described and illustrated and that many changes and modifications will occur to them without departing from the spirit and scope of the present application. The present application is therefore not to be limited to the exact details shown and described but only by the scope of the appended claims.

Claims

1. A land surveying device, comprising: The total station body (1) and the tripod (2) installed below the total station body (1); the upper end of the tripod (2) is rotatably connected to a top plate (21); the lower end of the tripod (2) is slidably connected to a bracket (22); a bolt is rotatably connected to one side of the bracket (22), characterized in that: A base (11) is located on the upper end of a top plate (21); threaded holes are provided in the center of both the base (11) and the top plate (21); the total station body (1) is mounted on the upper end of the base (11); mounting brackets (12) are slidably connected to both sides of the base (11); a clamping block (121) is threadedly connected to one side of the base (11); a baffle plate (13) is fixedly installed on the upper end of the mounting bracket (12); a film plate (14) is installed on the side of the mounting bracket (12) away from the total station body (1); the film plate (14) is made of transparent polyimide film material; a strip groove (122) is provided on the side of the two mounting brackets (12) that are close to each other; a corrugated plate (123) is slidably connected in the strip groove (122); the lower end of the corrugated plate (123) is fixedly connected to the base (11); The mounting bracket (12) has a U-shaped groove (124) at its upper end; a through groove (125) is provided at the bottom of the U-shaped groove (124); a sliding rod (15) is slidably connected inside the U-shaped groove (124); two sets of sliding rods (15) are provided; the sides of the two sets of sliding rods (15) that are away from each other are fixedly connected to the film plate (14); one set of film plate (14) has a slidably sealed connection at the end away from the sliding rod (15) inside the through groove (125); a cavity (131) is provided inside the shielding plate (13); a rotating rod (132) is rotatably connected to the inner wall of the cavity (131); and another One end of a set of thin film plates (14) away from the slide bar (15) is fixedly connected to the rotating rod (132); a sealing ring (16) is rotatably installed between the set of slide bars (15); the sealing ring (16) is threadedly connected to the lens of the total station body (1); a plane mirror (161) is fixedly connected to the end of the sealing ring (16) away from the total station body (1); when the lens needs to be tilted upward, the two slide bars (15) with the sealing ring (16) installed are pushed upward, so that the two slide bars (15) drive the sealing ring (16) to rise, so that the lens of the total station body (1) and the sealing ring (16) tilt upward; The two sets of slide bars (15) have magnetic sheets (151) embedded on the side away from the film plate (14); the magnetic poles of two adjacent magnetic sheets (151) are opposite; the sidewall of the film plate (14) is filled with strontium ferrite magnetic powder (141); the mounting bracket (12) is made of iron material; the film plate (14) will generate magnetic attraction force on the wall of the U-shaped groove (124) through the strontium ferrite magnetic powder (141).

2. The land surveying equipment according to claim 1, characterized in that: The total station body (1) is provided with connecting plates (126) on both sides; the connecting plates (126) are fixedly connected to the mounting frame (12); the end of the corrugated plate (123) away from the base (11) is fixedly connected to the connecting plate (126); the surfaces of the two connecting plates (126) are provided with circular grooves (127); the circular grooves (127) are used to install rubber gloves that communicate with them.

3. The land surveying equipment according to claim 2, characterized in that: The outer wall of the sealing ring (16) is fixedly connected to an annular airbag (162); the inner wall of the sealing ring (16) is provided with an air hole (163) communicating with the annular airbag (162).

4. A land surveying device according to claim 3, characterized in that: The air hole (163) is inclined; the end of the air hole (163) away from the annular airbag (162) is inclined toward the plane mirror (161).

5. A land surveying device according to claim 4, characterized in that: A shelf (23) is provided below the support (22); the shelf (23) is connected to the leg (2) through the connecting rod (231) at the upper end; a corrugated airbag (24) is installed at the upper end of the shelf (23); the corrugated airbag (24) is connected to the annular airbag (162) through the hose (25); an air inlet (241) is provided on the surface of the corrugated airbag (24).

6. A land surveying device according to claim 5, characterized in that: An electric push rod (26) is fixedly connected to the upper end of the shelf (23); the electric push rod (26) is located inside the corrugated airbag (24); the upper end of the electric push rod (26) is connected to the corrugated airbag (24); a one-way valve (27) is installed in both the air inlet (241) and the hose (25).

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