Land surveying and mapping equipment

Abstract

The invention relates to the technical field of land surveying and mapping, in particular to land surveying and mapping equipment. Comprising a total station body and a foot stool mounted below the total station body, the upper end of the foot stool is rotationally connected with a top tray; the lower end of the foot stool is slidably connected with a support. By arranging the film plate and the connecting plate, the periphery of the total station body can be surrounded by the film plate and the connecting plate, so that external rainwater blown by wind is prevented from dripping on the total station body, damage to the total station caused by the rainwater is avoided, and then normal use of the total station body and the accuracy of a measurement result of the total station body are guaranteed; the thin-film plate and the connecting plate are both made of transparent polyimide film materials, so that a user can conveniently observe operation keys of the total station body through the thin-film plate and the connecting plate, operation of the user is facilitated, in addition, the polyimide film has good chemical stability, the thin-film plate and the connecting plate are both resistant to corrosion of acid-base impurities in rainwater, and the service life of the user is prolonged. And the service lives of the film plate and the connecting plate are prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of land surveying and mapping, and specifically to a land surveying and mapping device. Background Art

[0002] A total station body, namely a total station electronic tachymeter, is a high-tech measuring instrument integrating optics, mechanics and electronics. It is a surveying and mapping instrument system integrating functions of horizontal angle, vertical angle, distance (slant distance, horizontal distance) and height difference measurement. Compared with an optical theodolite, an electronic theodolite replaces the optical scale with an optoelectronic scanning scale and replaces the manual optical micrometer reading with automatic recording and display reading, which simplifies the angle measurement operation and can avoid the generation of reading errors. Because all the measurement work at a measuring station can be completed by installing the instrument once, it is called a total station body. It is widely used in precision engineering surveying or deformation monitoring fields such as large-scale above-ground buildings and underground tunnel construction. As a precision measuring instrument, the total station body usually considers a certain degree of waterproof performance in design and manufacturing to adapt to different working environments. However, with the frequent use of the total station body, its waterproof performance will gradually decline. This is because during daily use, the instrument will be subject to various transportation bumps and frictions, resulting in slight wear or loosening at the sealed part of the housing. At the same time, long-term use and natural aging will also reduce the performance of the sealing material. As a result, the original good waterproof sealing effect of the instrument becomes worse, and rainwater is more likely to penetrate into the instrument interior. After the rainwater enters the total station body, it will cause serious damage to the internal circuit. To reduce the impact of rainwater on the total station body, staff often use methods such as holding an umbrella by hand and tying and fixing an umbrella on the tripod on site to shield the total station body from rain. Although it can protect the total station body to a certain extent, there are problems of inconvenient use in actual applications. In view of this, in order to overcome the above technical problems, the present invention proposes a land surveying and mapping device, which solves the above technical problems. Summary of the Invention

[0003] To make up for the deficiencies of the prior art, the present invention proposes a land surveying and mapping device. By setting a thin film plate and a connecting plate, the thin film plate and the connecting plate can surround the total station body, thereby blocking the raindrops blown by the wind from the outside from falling on the total station body, avoiding damage to the instrument caused by rainwater, and then ensuring the normal use of the total station body and the accuracy of its measurement results. Moreover, both the thin film plate and the connecting plate are made of transparent polyimide film material, which facilitates the user to observe the operation buttons of the total station body through the thin film plate and the connecting plate for easy operation by the user. In addition, the polyimide film has good chemical stability, so both the thin film plate and the connecting plate are resistant to corrosion by acid-base impurities in rainwater, improving the service life of the thin film plate and the connecting plate.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: A land surveying device described in the present invention includes: a total station body and a tripod installed below the total station body; the upper end of the tripod is rotatably connected to a top plate; the lower end of the tripod is slidably connected to a support; one side of the support is rotatably connected to a bolt, a base, the base is located at the upper end of the top plate; threaded holes are opened at the centers of both the base and the top plate; the total station body is installed at the upper end of the base; mounting frames are slidably connected to both sides of the base; a tightening block is threadedly connected to one side of the base; a shielding plate is fixedly installed at the upper end of the mounting frame; a thin film plate is installed on the side of the mounting frame away from the total station body; the thin film plate is made of a transparent polyimide film material; strip-shaped grooves are opened on the sides of the two mounting frames facing each other; a corrugated plate is slidably connected in the strip-shaped grooves; the lower end of the corrugated plate is fixedly connected to the base.

[0005] Preferably, a U-shaped groove is opened at the upper end of the mounting frame; a through groove is opened at the bottom of the U-shaped groove; a sliding rod is slidably connected in the U-shaped groove; there are two groups of the sliding rods; the sides of the two groups of sliding rods facing away from each other are fixedly connected to the thin film plate; one end of one group of the thin film plate away from the sliding rod is slidably and sealingly connected in the through groove; a cavity is opened inside the shielding plate; a rotating rod is rotatably connected to the inner wall of the cavity; one end of the other group of the thin film plate away from the sliding rod is fixedly connected to the rotating rod; a sealing ring is rotatably installed between the two groups of sliding rods; the sealing ring is threadedly connected to the lens of the total station body; a plane mirror is fixedly connected to the end of the sealing ring away from the total station body.

[0006] Preferably, magnetic pieces are embedded on the sides of the sliding rods facing away from the thin film plate; the magnetic poles of two adjacent magnetic pieces are opposite; strontium ferrite magnetic powder is filled in the side wall of the thin film plate.

[0007] Preferably, connecting plates are arranged on both sides of the total station body; the connecting plates are fixedly connected to the mounting frames; the end of the corrugated plate away from the base is fixedly connected to the connecting plates; circular grooves are opened on the surfaces of the two connecting plates; the circular grooves are used for installing rubber gloves communicated with them.

[0008] Preferably, an annular airbag is fixedly connected to the outer wall of the sealing ring; air holes communicating with the annular airbag are opened on the inner wall of the sealing ring.

[0009] Preferably, the air holes are inclined; the end of the air hole away from the annular airbag is inclined towards the plane mirror.

[0010] Preferably, a storage rack is arranged below the support; the storage rack is connected to the tripod through a connecting rod at the upper end; a corrugated airbag is installed at the upper end of the storage rack; the corrugated airbag is connected to the annular airbag through a hose; an air inlet is opened on the surface of the corrugated airbag.

[0011] Preferably, an electric push rod is fixedly connected to the upper end of the storage rack; the electric push rod is located inside the corrugated airbag; the upper end of the electric push rod is connected to the corrugated airbag; one-way valves are installed in both the air inlet and the hose.

[0012] The beneficial effects of the present invention are as follows: 1. By providing the thin film plate and the connecting plate, the thin film plate and the connecting plate can surround the total station body, thereby blocking the raindrops blown by the wind from the outside and falling on the total station body, avoiding damage to the instrument caused by rain, and thus ensuring the normal use of the total station body and the accuracy of its measurement results; moreover, both the thin film plate and the connecting plate are made of transparent polyimide film material, which facilitates the user to observe the operation buttons of the total station body through the thin film plate and the connecting plate for easy operation by the user. In addition, the polyimide film has good chemical stability, so both the thin film plate and the connecting plate are resistant to corrosion by acid-base impurities in rainwater, improving the service life of the thin film plate and the connecting plate.

[0013] 2. Through the arrangement of the corrugated airbag and the electric push rod, when the electric push rod expands and contracts, the electric push rod will push the corrugated airbag to expand and contract, causing the contracted corrugated airbag to transport gas into the annular airbag. The gas entering the annular airbag will be sprayed obliquely towards the plane mirror through the air holes on the inner wall of the sealing ring, so that the rainwater falling on the plane mirror will be pushed by the airflow ejected from the air holes and separated from the plane mirror, ensuring the cleanliness of the plane mirror surface, improving the light transmittance of the plane mirror, enhancing the clarity of the operator's observation, and thus ensuring the accurate alignment of the crosshair center of the lens with the target; effectively improving the practicability of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 is a three-dimensional view of the present invention; Figure 2 is Figure 1 an enlarged view of part A in Figure 3 is a partial cross-sectional view of the present invention; Figure 4 is Figure 3 an enlarged view of part B in Figure 5 is Figure 3 an enlarged view of part C in Figure 6 is a three-dimensional view of the thin film plate used in the present invention; In the figure: 1, total station instrument body; 11, base; 12, mounting bracket; 121, abutting block; 122, strip 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, thin film plate; 141, strontium ferrite magnetic powder; 15, sliding rod; 151, magnetic sheet; 16, sealing ring; 161, plane mirror; 162, annular airbag; 163, air hole; 2, tripod; 21, top plate; 22, support; 23, storage rack; 231, connecting rod; 24, corrugated airbag; 241, air inlet; 25, hose; 26, electric push rod; 27, one-way valve. Detailed implementation mode

[0016] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation modes.

[0017] As Figures 1 to 6 shown, a land surveying and mapping device of the present invention includes: a total station instrument body 1 and a tripod 2 installed below the total station instrument 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 support 22; one side of the support 22 is rotatably connected to a bolt. Base 11, the base 11 is located at the upper end of the top plate 21; threaded holes are opened at the centers of both the base 11 and the top plate 21; the total station instrument body 1 is installed at the upper end of the base 11; both sides of the base 11 are slidably connected to mounting brackets 12; one side of the base 11 is threadedly connected to an abutting block 121; a shielding plate 13 is fixedly installed at the upper end of the mounting bracket 12; a thin film plate 14 is installed on the side of the mounting bracket 12 away from the total station instrument body 1; the thin film plate 14 is made of a transparent polyimide film material; strip grooves 122 are opened on the sides of the two mounting brackets 12 facing 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.

[0018] As an embodiment of the present invention, a U-shaped groove 124 is formed at the upper end of the mounting bracket 12; a through groove 125 is formed at the bottom of the U-shaped groove 124; a sliding rod 15 is slidably connected in the U-shaped groove 124; two sets of the sliding rods 15 are provided; on the mutually remote sides of the two sets of the sliding rods 15, a thin film plate 14 is fixedly connected; one end of one set of the thin film plate 14 remote from the sliding rod 15 is slidably and sealingly connected in the through groove 125; a cavity 131 is formed inside the shielding plate 13; a rotating rod 132 is rotatably connected to the inner wall of the cavity 131; one end of the other set of the thin film plate 14 remote from the sliding rod 15 is fixedly connected to the rotating rod 132; a sealing ring 16 is rotatably installed between the two sets of the sliding rods 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 one end of the sealing ring 16 remote from the total station body 1.

[0019] As an embodiment of the present invention, a magnetic sheet 151 is inlaid on the side of the sliding rod 15 remote from the thin film plate 14; the magnetic poles of two adjacent magnetic sheets 151 are opposite; strontium ferrite magnetic powder 141 is filled in the side wall of the thin film plate 14.

[0020] As an embodiment of the present invention, connecting plates 126 are arranged on both sides of the total station body 1; the connecting plates 126 are fixedly connected to the mounting bracket 12; one end of the corrugated plate 123 remote from the base 11 is fixedly connected to the connecting plate 126; circular grooves 127 are formed on the surfaces of the two connecting plates 126; the circular grooves 127 are used for installing rubber gloves communicated therewith. During operation, as a precision measuring instrument, the total station body 1 usually considers a certain degree of waterproof performance in design and manufacture to adapt to different working environments; however, with the frequent use of the total station body 1, its waterproof performance will gradually decline; this is because during daily use, the instrument will be subjected to various transportation bumps and frictions, resulting in slight wear or loosening at the sealed part of the outer shell; at the same time, long-term use and natural aging will also reduce the performance of the sealing material; as a result, the original good waterproof sealing effect of the instrument becomes worse, and rainwater is more likely to penetrate into the instrument interior; 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 hold umbrellas and tie and fix umbrellas on the tripod 2 on site to shield the total station body 1 from rain. Although it can protect the total station body 1 to a certain extent, there are inconvenient use problems in actual applications. In this regard, the present invention arranges a thin film plate 14 and a connecting plate 126, so that the thin film plate 14 and the connecting plate 126 can surround the total station body 1, thereby blocking the raindrops blown by the wind from the outside from falling on the total station body 1, avoiding damage to the instrument caused by rain, and thus ensuring the normal use of the total station body 1 and the accuracy of its measurement results; moreover, both the thin film plate 14 and the connecting plate 126 are made of transparent polyimide film material, so that it is convenient for users to observe the operation keys of the total station body 1 through the thin film plate 14 and the connecting plate 126, facilitating the operation of users. In addition, the polyimide film has good chemical stability, so both the thin film plate 14 and the connecting plate 126 are resistant to the corrosion of acid-base impurities in rainwater, improving the service life of the thin film plate 14 and the connecting plate 126; In the initial state, the mounting bracket 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 tripod 2 steadily on the ground so that the top plate 21 at the upper end of the tripod 2 is parallel to the ground, and then places the base 11 steadily on the top plate 21 of the tripod 2 so that the threaded holes on the base 11 and the top plate 21 are aligned. Then, the total station body 1 is placed on the upper end of the base 11. At this time, the bolt holes of the base 11, the top plate 21, and the total station body 1 are on the same central axis. Then, a threaded fixing block is used to pass through the bolt holes of the base 11, the top plate 21, and the total station body 1 from the lower end of the top plate 21, so that the base 11, the top plate 21, and the total station body 1 are fixed; then, the mounting bracket 12 slidably connected to the base 11 is pulled upward; since the two mounting brackets 12 are fixedly connected by the connecting plate 126, during the upward movement of the mounting bracket 12, the mounting bracket 12 drives the connecting plate 126 to rise, so that the connecting plate 126 drives the corrugated plate 123 fixedly connected to the lower end to rise, causing the compressed corrugated plate 123 to stretch. Since a strip-shaped groove 122 is formed on the surface of the mounting bracket 12 close to the connecting plate 126, and the corrugated plate 123 is in sliding and sealing contact with the bottom of the strip-shaped groove 122, when the corrugated plate 123 stretches, the corrugated plate 123 is always in sliding and sealing contact with the bottom of the strip-shaped groove 122; when rainwater from the outside drops on the corrugated plate 123, the rainwater will fall onto the base 11 along the corrugated surface of the corrugated plate 123 and flow along the edge of the base 11, so that the corrugated plate 123 slidably and sealingly connected in the strip-shaped groove 122 can completely prevent the outside rainwater from flowing into the center of the base 11 from both sides of the base 11, avoiding the outside rainwater from soaking the total station body 1; when the upper end of the mounting bracket 12 crosses the upper end surface of the total station body 1, at this time, the user rotates the tightening block 121 so that the tightening block 121 threadedly connected to the base 11 can continuously approach the mounting bracket 12 until the tightening block 121 contacts the mounting bracket 12, so that the tightening block 121 presses against the mounting bracket 12, and the mounting bracket 12 is fixed on the base 11 under the action of the frictional resistance between it and the tightening block 121; then, the user places the shielding plate 13 on the upper end of the mounting bracket 12 and fixes the shielding plate 13 on the upper end of the mounting bracket 12 with bolts; Before the baffle 13 is fixed to the mounting bracket 12, first pull the slide bar 15 connected to the baffle 13, so that the slide bar 15 pulls the thin film plate 14 connected to it in the cavity 131 to extend out of the cavity 131. Finally, insert the slide bar 15 connected to the baffle 13 into the U-shaped groove 124 of the mounting bracket 12, and push the slide bar 15 downward, so that the slide bar 15 connected to the baffle 13 drives the thin film plate 14 in the cavity 131 to slide in the U-shaped groove 124; when the baffle 13 is fixed to the mounting bracket 12, pull the slide bar 15 at the bottom of the U-shaped groove 124, so that the slide bar 15 at the bottom of the U-shaped groove 124 drives the thin film plate 14 in the through groove 125 to move along the U-shaped groove 124 towards the direction close to the baffle 13, so that the two slide bars 15 approach each other. When the two slide bars 15 are in full contact, the magnetic sheets 151 on the mutually approaching surfaces of the two slide bars 15 are in a state of mutual adsorption, so that the two slide bars 15 are closely attached under the adsorption action of the magnetic sheets 151, so that the two slide bars 15 drive the connected thin film plate 14 to block the front and rear sides of the mounting bracket 12, and the baffle 13 and the base 11 block the total station body 1 in the up and down directions, thereby realizing the wrapping and protection of the total station body 1; the side wall of the thin film plate 14 is filled with strontium ferrite magnetic powder 141; since the mounting bracket 12 is made of iron material, when the thin film plate 14 slides in the U-shaped groove 124, the thin 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 thin film plate 14 is closely attached to the side wall of the U-shaped groove 124, so that when rain hits the thin film plate 14, the rainwater sliding along the surface of the thin film plate 14 will not flow out from the gap between the thin film plate 14 and the U-shaped groove 124; thus ensuring the rain blocking effect of the thin film plate 14; effectively improving the practicability of the present invention; When the rain is heavy, the rainwater blocked by the thin film plate 14 will form a flowing rain curtain on the thin film plate 14, and the formed rain curtain will affect the detection and measurement of the total station instrument body 1; for example, the rain curtain will block the line of sight of the total station instrument body 1 to a certain extent; for the angle measurement that requires accurate aiming at the target, the rain curtain will make the target blurred; it makes it difficult for the operator to accurately align the target through the center of the crosshair of the lens, thus generating aiming errors; resulting in inaccurate angle data obtained by measurement; in response to this, the present invention sets a sealing ring 16, so that the sealing ring 16 is clamped with the lens of the total station instrument body 1, and at the same time, the two slide rods 15 close to the lens of the total station instrument body 1 are in the shape of an arch; when the two slide rods 15 are fitted, the two arch-shaped slide rods 15 clamp the sealing ring 16, and at this time, the sealing ring 16 is rotationally and sealingly connected to the two thin film plates 14 through the slide rods 15, so that one end of the sealing ring 16 away from the total station instrument body 1 passes through the thin film plate 14, so that the rain curtain on the thin film plate 14 can only flow along the outer wall of the sealing ring 16, greatly reducing the interference of the rain curtain on the thin film plate 14 to the lens, so as to ensure that the lens can clearly observe the target through the sealing ring 16; improving the accuracy of the measured angle data; the reason for installing a plane mirror 161 at one end of the sealing ring 16 away from the lens is to prevent the wind from blowing the rainwater into the sealing ring 16, and further avoid the rainwater falling onto the lens of the total station instrument body 1 through the sealing ring 16, preventing the rainwater from wetting the lens of the total station instrument body 1, and thus ensuring the use effect and service life of the lens. By providing a circular groove 127, it is to install a rubber glove communicated with it in the circular groove 127, so that the user passes the hand through the circular groove 127 and inserts it into the rubber glove, so that the user can perform key operations on the total station instrument body 1 inside the base 11 through the rubber glove, thus eliminating the need for the user to repeatedly open the thin film plate 14, avoiding the rainwater from falling onto the surface of the total station instrument body 1 through the gap between the opened thin film plates 14, and even penetrating into the instrument interior, and thus ensuring the rain protection effect of the thin film plate 14 on the total station instrument body 1; and thus ensuring the normal use of the total station instrument body 1 and the accuracy of its measurement results.

[0021] As an implementation manner of the present invention, an annular airbag 162 is fixedly connected to the outer wall of the sealing ring 16; air holes 163 communicated with the annular airbag 162 are opened on the inner wall of the sealing ring 16.

[0022] As an implementation manner of the present invention, the air holes 163 are inclined; one end of the air holes 163 away from the annular airbag 162 is inclined towards the plane mirror 161.

[0023] As an embodiment of the present invention, a storage rack 23 is provided below the bracket 22; the upper end connecting rod 231 of the storage rack 23 is connected to the footrest 2; a corrugated airbag 24 is installed at the upper end of the storage rack 23; the corrugated airbag 24 is connected to the annular airbag 162 through a hose 25; an air inlet 241 is formed on the surface of the corrugated airbag 24.

[0024] As an embodiment of the present invention, an electric push rod 26 is fixedly connected to the upper end of the storage rack 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; check valves 27 are installed in both the air inlet 241 and the hose 25; During operation, when performing topographic surveys, for terrains such as slopes and mountains with a certain gradient, in order to obtain complete topographic data, the lens needs to be tilted upward; in this way, points at different heights on the slope can be measured, and then an accurate topographic map can be drawn; when the lens needs to be tilted upward, only need to push the two sliding rods 15 in the U-shaped groove 124 upward, so that the sliding rods 15 drive the sealing ring 16 to rise, and the sealing ring 16 connected to the lens can be tilted upward; when the sealing ring 16 is tilted upward, it is inevitable that the rainwater from the outside will be blown by the wind and fall on the plane mirror 161, causing the rainwater to accumulate continuously on the plane mirror 161, and the accumulated rainwater will refract light, affecting the accurate alignment of the crosshair center of the lens with the target; In response to this, the present invention is provided with a corrugated airbag 24 and an electric push rod 26. During the telescopic process of the electric push rod 26, the electric push rod 26 will push the corrugated airbag 24 to expand and contract, so that the contracted corrugated airbag 24 conveys gas into the annular airbag 162, and the gas entering the annular airbag 162 will be sprayed obliquely onto the plane mirror 161 through the air holes 163 on the inner wall of the sealing ring 16, so that the rainwater falling on the plane mirror 161 will be pushed by the airflow ejected from the air holes 163 and separated from the plane mirror 161, so as to ensure the cleanliness of the surface of the plane mirror 161, improve the light transmittance of the plane mirror 161, enhance the clarity of the operator's observation, and further ensure the accurate alignment of the crosshair center of the lens with the target; effectively improving the practicality of the present invention; When rain falls on the plane mirror 161, causing the target observed by the staff through the lens to become blurred, the user only needs to control the electric push rod 26 to extend and retract repeatedly. When the electric push rod 26 extends, the electric push rod 26 can push the corrugated airbag 24 to extend, increasing the space inside the corrugated airbag 24, reducing the air pressure inside the corrugated airbag 24, and causing outside air to enter the corrugated airbag 24 through the air inlet 241 under the push of the air pressure difference. When the electric push rod 26 contracts, the electric push rod 26 will pull the corrugated airbag 24 to contract, compressing the gas inside the corrugated airbag 24. Since check valves 27 are installed in both the air inlet 241 and the hose 25, the gas inside the corrugated airbag 24 cannot be ejected through the air inlet 241, and the gas inside the corrugated airbag 24 can only flow into the annular airbag 162 through the hose 25, and the gas entering the annular airbag 162 will be ejected through the air holes 163 communicating with the annular airbag 162. Since one end of the air hole 163 far from the annular airbag 162 faces the plane mirror 161, the air ejected from the air hole 163 can blow on the plane mirror 161, causing the rain falling on the plane mirror 161 to flow along the edge of the plane mirror 161 to the inner wall of the sealing ring 16 under the blowing of the air flow. Since the plane mirror 161 is fixedly connected inside the sealing ring 16, the air flow sprayed into the sealing ring 16 will be blocked by the plane mirror 161, and the blocked air flow can only be ejected from the ring opening of the sealing ring 16. Thus, the air ejected from the ring opening of the sealing ring 16 will drive the rain entering the sealing ring 16 to be discharged from the sealing ring 16. At the same time, the air flow ejected from the ring opening of the sealing ring 16 will push the rain outside the sealing ring 16 away from the sealing ring 16. Furthermore, the air ejected from the ring opening of the sealing ring 16 can block the rain falling into the sealing ring 16, reducing the rain falling into the sealing ring 16, preventing the rain from falling on the plane mirror 161, improving the light transmittance of the plane mirror 161, enhancing the clarity of the operator's observation, and thus ensuring that the crosshair center of the lens is accurately aligned with the target. The setting of the storage rack 23 is to facilitate the connection of the corrugated pipe to the tripod 2, so as to facilitate the carrying of the corrugated airbag 24, and further effectively improve the practicability of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the Figure 1 orientation or positional relationship shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A land surveying and mapping device, comprising: A total station body (1) and a 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); one side of the bracket (22) is rotatably connected to a bolt, characterized in that: A base (11), wherein the base (11) is located at the upper end of a top plate (21); threaded holes are provided at the centers of the base (11) and the top plate (21); the total station body (1) is mounted on the upper end of the base (11); mounting frames (12) are slidably connected to both sides of the base (11); a tightening block (121) is threadedly connected to one side of the base (11); a shielding plate (13) is fixedly mounted on the upper end of the mounting frame (12); a film plate (14) is installed on a side of the mounting frame (12) away from the total station body (1); the film plate (14) is made of a transparent polyimide film material; a strip groove (122) is provided on a side of the two mounting frames (12) 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).

2. A land surveying and mapping device according to claim 1, characterized in that: 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); a sliding rod (15) is slidably connected in the U-shaped groove (124); two groups of sliding rods (15) are provided; the two groups of sliding rods (15) are fixedly connected to the film plate (14) on the sides away from each other; one group of film plates (14) is slidably and sealedly connected in the through groove (125) on the end away from the sliding rod (15); the shielding plate ( 13) is provided with a cavity (131) inside; the inner wall of the cavity (131) is rotatably connected to a rotating rod (132); one end of another group of film plates (14) away from the sliding rod (15) is fixedly connected to the rotating rod (132); a sealing ring (16) is rotatably installed between the two groups of sliding rods (15); the sealing ring (16) is threadedly connected to the lens of the total station body (1); and one end of the sealing ring (16) away from the total station body (1) is fixedly connected to a plane mirror (161).

3. A land surveying and mapping device according to claim 2, characterized in that: A magnetic sheet (151) is embedded on one side of the slide bar (15) away from the film plate (14); the magnetic poles of two adjacent magnetic sheets (151) are opposite; and the side wall of the film plate (14) is filled with strontium ferrite magnetic powder (141).

4. A land surveying and mapping device according to claim 3, characterized in that: Connecting plates (126) are provided on both sides of the total station body (1); the connecting plates (126) are fixedly connected to the mounting frame (12); one end of the corrugated plate (123) away from the base (11) is fixedly connected to the connecting plate (126); circular grooves (127) are provided on the surfaces of the two connecting plates (126); the circular grooves (127) are used to install rubber gloves connected thereto.

5. A land surveying and mapping device according to claim 4, characterized in that: An annular airbag (162) is fixedly connected to the outer wall of the sealing ring (16); and an air hole (163) communicating with the annular airbag (162) is formed on the inner wall of the sealing ring (16).

6. A land surveying and mapping device according to claim 5, characterized in that: The air hole (163) is arranged obliquely; one end of the air hole (163) away from the annular air bag (162) is inclined toward the plane mirror (161).

7. A land surveying and mapping device according to claim 6, characterized in that: A storage rack (23) is provided below the bracket (22); the storage rack (23) is connected to the tripod (2) via a connecting rod (231) at the upper end; a corrugated airbag (24) is installed at the upper end of the storage rack (23); the corrugated airbag (24) is connected to the annular airbag (162) via a hose (25); an air inlet (241) is provided on the surface of the corrugated airbag (24).

8. A land surveying and mapping device according to claim 7, characterized in that: 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 airbag (24); the upper end of the electric push rod (26) is connected to the corrugated airbag (24); and a one-way valve (27) is installed in both the air inlet (241) and the hose (25).

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