Surveying and mapping frame with positioning structure for land surveying and mapping

Abstract

The invention relates to the technical field of surveying and mapping supports, and discloses a surveying and mapping frame with a positioning structure for land surveying and mapping, the surveying and mapping frame comprises an equipment support, a vertical plate is fixedly mounted on the rear side of the upper end surface of the equipment support, a side plate is rotatably mounted on the front end surface of the vertical plate, and an extension plate is fixedly mounted on the left end surface of the side plate; a top plate is rotatably mounted on the right end face of the extension plate, a connecting cover is fixedly mounted in the middle of the lower end face of the equipment support, and the leveling mechanism is arranged on the side walls of the vertical plate and the extension plate. A clamping mechanism; and a supporting mechanism. Through the arrangement of the leveling mechanism, the clamping mechanism and the like, the surveying instrument can be rapidly limited and leveled, the surveying instrument is kept in a relative horizontal state all the time in the using process, data errors caused by inclination of the surveying instrument are avoided, and the measurement precision requirement is guaranteed; the height of the surveying instrument can be adjusted, and the stability of the surveying instrument during use is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of surveying and mapping brackets, and specifically relates to a surveying and mapping frame with a positioning structure for land surveying and mapping. Background Art

[0002] A surveying instrument is an instrument for measuring precise data. With the progress of technology, a surveying instrument can integrate optics, mechanics, and electronics, and can measure data such as angles, heights, and lengths with high precision. It has an indispensable position in many current fields. When using a surveying instrument in the environment of building construction, there is a very high demand for the surveying instrument. High requirements for data are basic for buildings, so there are many types of surveying instruments required on construction sites, such as level gauges, theodolites, etc. Various surveying instruments have brought great help to current construction operations. A surveying and mapping frame is a support frame used to stabilize a surveying instrument to achieve certain specific measurement effects. The positioning of the surveying and mapping frame is very important. The surveying and mapping frame can be classified into various types according to the material, such as wood, high-strength plastic material, aluminum alloy material, steel material, volcanic stone, carbon fiber, etc. The use of the surveying and mapping frame is to facilitate the comprehensive detection of the construction site.

[0003] When the existing surveying instruments are in use, the requirements for the fixing frames of the surveying instruments are not very high, so that some ordinary surveying instrument fixing frames cannot be used in some relatively complex terrains. Moreover, when the existing surveying and mapping frames are adjusting the height after installing the instruments, it is necessary to simultaneously adjust multiple support rods at the bottom. The operation steps are numerous and the operation is complex, which affects the work efficiency. At the same time, the leveling method is too cumbersome, inconvenient to use, and prone to surveying errors. Therefore, there is an urgent need for a surveying and mapping frame with a positioning structure for land surveying and mapping to solve such problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a surveying and mapping frame with a positioning structure for land surveying and mapping to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A surveying and mapping frame with a positioning structure for land surveying and mapping, including an equipment support. A vertical plate is fixedly installed on the rear side of the upper end surface of the equipment support. A side plate is rotatably installed on the front end surface of the vertical plate. An extension plate is fixedly installed on the left end surface of the side plate. A top plate is rotatably installed on the right end surface of the extension plate. A surveying instrument is arranged below the top plate. A connection cover is fixedly installed in the middle of the lower end surface of the equipment support. It further includes: A leveling mechanism, which is arranged on the side walls of the vertical plate and the extension plate, and is used for leveling the surveying instrument; A clamping mechanism, which is arranged on the left and right sides of the lower end surface of the top plate, and is used for limiting the surveying instrument; A support mechanism, which is arranged on the lower end face of the connecting cover and is used to adjust the height of the equipment support.

[0006] Preferably, the leveling mechanism includes a first support plate fixedly installed on the rear end face of the vertical plate. A lifting worm is rotatably installed in the inner cavities of the first support plates on the left and right sides. The rear end of the side plate penetrates through the vertical plate and is fixedly installed with a first coupling shaft. A lifting worm gear is fixedly installed on the rear end face of the first coupling shaft. A lifting motor is fixedly installed on the rear end face of the vertical plate through a frame.

[0007] Preferably, the leveling mechanism further includes a second support plate fixedly installed on the left end face of the extension plate. A transverse movement worm is rotatably installed between the second support plates on the front and rear sides. The left end face of the top plate penetrates through the extension plate and is fixedly installed with a second coupling shaft. A transverse movement worm gear is fixedly installed on the left end face of the second coupling shaft. A transverse movement motor is fixedly installed on the left end face of the extension plate through a frame.

[0008] Preferably, the lifting worm is meshed and connected with the lifting worm gear, the output shaft end of the lifting motor is fixedly connected with the lifting worm, the transverse movement worm is meshed and connected with the transverse movement worm gear, and the output shaft end of the transverse movement motor is fixedly connected with the transverse movement worm.

[0009] Preferably, the clamping mechanism includes positioning plates fixedly installed on the left and right sides of the upper end face of the top plate. A bidirectional screw is rotatably installed between the positioning plates on the left and right sides. Sliding seats are threadedly installed on the left and right sides of the side wall of the bidirectional screw. An electric push rod is fixedly installed on the lower end face of the sliding seat. A clamping seat is fixedly installed on the piston rod end of the electric push rod.

[0010] Preferably, a sliding groove is formed in the middle of the upper end face of the top plate. The sleeve end of the electric push rod slides in the inner cavity of the sliding groove. The thread directions on the left and right sides of the bidirectional screw are opposite. The surveying instrument is arranged between the clamping seats on the left and right sides. The inner side wall of the clamping seat is provided with anti-slip textures. A clamping motor is fixedly installed on the left side of the upper end face of the top plate through a frame. The output shaft end of the clamping motor is fixedly connected with the bidirectional screw.

[0011] Preferably, an air storage cavity is arranged in the inner cavity of the clamping seat. A piston plate is slidably installed in the inner cavity of the air storage cavity. A sliding rod is fixedly installed on the side wall of the piston plate. A return spring is wound and installed on the side wall of the sliding rod. One end of the return spring is fixedly installed on the side wall of the piston plate, and the other end is fixedly installed on the inner cavity side wall of the air storage cavity. A purging device is fixedly installed in the middle of the front end face of the top plate.

[0012] Preferably, the sliding rod is connected through the clamping seat. An air inlet pipe communicating with the air storage cavity is fixedly installed on the rear end face of the clamping seat. A one-way air valve with an outlet facing the inner cavity of the air storage cavity is arranged in the inner cavity of the air inlet pipe. An air outlet pipe communicating with the air storage cavity is fixedly installed on the front end face of the clamping seat. The air outlet pipe is fixedly connected with the purging device. A one-way air valve with an outlet facing the inner cavity of the purging device is arranged in the inner cavity of the air outlet pipe.

[0013] Preferably, the support mechanism includes a top seat fixedly installed on the lower end face of the connecting cover. Support plates are rotatably installed around the side wall of the top seat. A base is rotatably installed on the lower part of the side wall of the support plate. A ground nail is fixedly installed on the lower end face of the base. An adjusting screw rod is rotatably installed in the inner cavity of the top seat. An adjusting seat is threadedly installed on the side wall of the adjusting screw rod.

[0014] Preferably, a support motor is fixedly installed on the bottom surface of the inner cavity of the connecting cover through a frame. The output shaft end of the support motor penetrates through the connecting cover and is fixedly installed with the adjusting screw rod. A plug is fixedly installed on the lower end face of the adjusting screw rod. Connecting plates are fixedly installed around the outer side wall of the adjusting seat. Limit rods are fixedly installed at the outer ends of the connecting plates. Limit grooves are formed on the side wall of the support plate. The limit rods slide in the inner cavity of the limit grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the user can start the lifting motor to operate, so that the lifting worm drives the lifting worm gear to rotate. The lifting worm gear can drive the first coupling shaft to rotate the side plate, so as to adjust the vertical angle of the surveying instrument below the top plate. The user starts the transverse movement motor to operate, so that the transverse movement worm drives the transverse movement worm gear to rotate. The transverse movement worm gear can drive the second coupling shaft to rotate the top plate, so as to adjust the tilt angle of the surveying instrument below the top plate. Thus, through the above description, the device of the present invention can quickly level the surveying instrument, greatly improving the work efficiency of surveying personnel. At the same time, through the transmission mode of the worm gear and the worm, it is not necessary for the motor to continuously work, and the position of the surveying instrument can still be fixed, saving the use cost and improving the environmental protection performance.

[0016] 2. In this invention, when the clamping seats on the left and right sides approach each other, the sliding rods slidably mounted on the side walls of the clamping seats will contact the surveying instrument. The surveying instrument can squeeze the sliding rods, causing the sliding rods to drive the piston plate to slide outward in the inner cavity of the air storage chamber. At this time, when the clamping seats clamp the surveying instrument, the volume of the inner cavity of the air storage chamber will continuously increase, and air can be inhaled from the outside through the intake pipe and enter the inner cavity of the air storage chamber. When the clamping seats on the left and right sides move away from each other, under the elastic force of the return spring, the sliding rods drive the piston plate to slide inward in the inner cavity of the air storage chamber. At this time, when the clamping seats release the surveying instrument, the volume of the inner cavity of the air storage chamber will continuously decrease, and the air in the inner cavity of the air storage chamber can enter the purging device through the outlet pipe. The purging device will continuously blow downward, realizing the blowing of dust on the lens and the housing of the surveying instrument, avoiding dust entering the inside of the housing when the surveying instrument is stored, resulting in damage to the internal electronic components of the surveying instrument, and improving the service life of the surveying instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view overall structural schematic diagram of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 2 is a rear view overall structural schematic diagram of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 3 is a bottom view overall structural schematic diagram of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 4 is a connection structural schematic diagram of a leveling mechanism of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 5 is a connection structural schematic diagram of a clamping mechanism of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 6 is a partial cross-sectional structural schematic diagram of a clamping seat of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 7 is a connection structural schematic diagram of a support mechanism of a surveying frame with a positioning structure for land surveying according to the present invention; Figure 8 is a connection structural schematic diagram of a support plate of a surveying frame with a positioning structure for land surveying according to the present invention.

[0018] In the figure: 1. Equipment support; 2. Vertical plate; 3. Side plate; 4. Extension plate; 5. Top plate; 51. Sliding groove; 52. Clamping motor; 6. Connection cover; 7. Leveling mechanism; 71. First support plate; 72. Lifting worm; 73. First coupling; 74. Lifting worm gear; 75. Lifting motor; 76. Second support plate; 77. Transverse movement worm; 78. Second coupling; 79. Transverse movement worm gear; 710. Transverse movement motor; 8. Clamping mechanism; 81. Positioning plate; 82. Bidirectional screw; 83. Sliding seat; 84. Electric push rod; 85. Clamping seat; 851. Air storage cavity; 852. Air inlet pipe; 853. Air outlet pipe; 86. Piston plate; 87. Sliding rod; 88. Return spring; 89. Blower; 9. Support mechanism; 91. Top seat; 92. Support plate; 921. Limit groove; 93. Base; 94. Adjusting screw; 95. Adjusting seat; 96. Support motor; 97. Connection plate; 98. Limit rod. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-8 , the present invention provides a technical solution for a surveying frame with a positioning structure for land surveying: A surveying frame with a positioning structure for land surveying includes an equipment support 1. A vertical plate 2 is fixedly installed on the rear side of the upper end surface of the equipment support 1. A side plate 3 is rotatably installed on the front end surface of the vertical plate 2. An extension plate 4 is fixedly installed on the left end surface of the side plate 3. A top plate 5 is rotatably installed on the right end surface of the extension plate 4. A surveying instrument is arranged below the top plate 5. A connection cover 6 is fixedly installed in the middle of the lower end surface of the equipment support 1. It further includes: A leveling mechanism 7 is arranged on the side walls of the vertical plate 2 and the extension plate 4, and the leveling mechanism 7 is used to level the surveying instrument; A clamping mechanism 8 is arranged on the left and right sides of the lower end surface of the top plate 5, and the clamping mechanism 8 is used to limit the surveying instrument; A support mechanism 9 is arranged on the lower end surface of the connection cover 6, and the support mechanism 9 is used to adjust the height of the equipment support 1.

[0021] Further, the leveling mechanism 7 includes a first support plate 71 fixedly installed on the rear end face of the vertical plate 2. A lifting worm 72 is rotatably installed in the inner cavities of the first support plates 71 on the left and right sides. The rear end of the side plate 3 penetrates through the vertical plate 2 and is fixedly installed with a first coupling shaft 73. A lifting worm gear 74 is fixedly installed on the rear end face of the first coupling shaft 73. A lifting motor 75 is fixedly installed on the rear end face of the vertical plate 2 through a frame. The leveling mechanism 7 further includes a second support plate 76 fixedly installed on the left end face of the extension plate 4. A transverse movement worm 77 is rotatably installed between the second support plates 76 on the front and rear sides. The left end face of the top plate 5 penetrates through the extension plate 4 and is fixedly installed with a second coupling shaft 78. A transverse movement worm gear 79 is fixedly installed on the left end face of the second coupling shaft 78. A transverse movement motor 710 is fixedly installed on the left end face of the extension plate 4 through a frame. The lifting worm 72 is meshed and connected with the lifting worm gear 74. The output shaft end of the lifting motor 75 is fixedly connected with the lifting worm 72. The transverse movement worm 77 is meshed and connected with the transverse movement worm gear 79. The output shaft end of the transverse movement motor 710 is fixedly connected with the transverse movement worm 77.

[0022] It should be noted that the user can start the lifting motor 75 to run, so that the lifting worm 72 drives the lifting worm gear 74 to rotate. The lifting worm gear 74 can drive the first coupling shaft 73 to rotate the side plate 3, so as to adjust the vertical angle of the surveying instrument below the top plate 5. The user starts the transverse movement motor 710 to run, so that the transverse movement worm 77 drives the transverse movement worm gear 79 to rotate. The transverse movement worm gear 79 can drive the second coupling shaft 78 to rotate the top plate 5, so as to adjust the tilt angle of the surveying instrument below the top plate 5. Thus, through the above description, the device can realize the function of quickly leveling the surveying instrument, greatly improving the work efficiency of surveying personnel. At the same time, through the transmission mode of the worm gear and the worm, the motor does not need to work continuously, and the position of the surveying instrument can still be fixed, saving the use cost and improving the environmental protection performance.

[0023] Further, the clamping mechanism 8 includes positioning plates 81 fixedly installed on the left and right sides of the upper end face of the top plate 5. A bidirectional screw 82 is rotatably installed between the positioning plates 81 on the left and right sides. Sliding seats 83 are threadedly installed on the left and right sides of the side wall of the bidirectional screw 82. An electric push rod 84 is fixedly installed on the lower end face of the sliding seat 83. A clamping seat 85 is fixedly installed on the piston rod end of the electric push rod 84. A sliding groove 51 is opened in the middle of the upper end face of the top plate 5. The sleeve end of the electric push rod 84 slides in the inner cavity of the sliding groove 51. The thread directions on the left and right sides of the bidirectional screw 82 are opposite. The surveying instrument is arranged between the clamping seats 85 on the left and right sides. The inner side wall of the clamping seat 85 is provided with anti-slip textures. A clamping motor 52 is fixedly installed on the left side of the upper end face of the top plate 5 through a frame. The output shaft end of the clamping motor 52 is fixedly connected with the bidirectional screw 82.

[0024] It should be noted that the user can start the clamping motor 52 to run, so that the bidirectional screw 82 rotates. Since the thread directions on the left and right sides of the bidirectional screw 82 are opposite and the sliding seat 83 is threadedly connected to the bidirectional screw 82, the sliding seats 83 on both sides can move towards the middle of the side wall of the bidirectional screw 82 at the same time. The electric push rod 84 can drive the clamping seats 85 on both sides to approach each other, so as to realize the stable clamping of the surveying instrument, prevent the surveying instrument from slipping off the side wall of the clamping seat 85, ensure the safety of the surveying instrument during use. By setting the electric push rod 84, the height of the surveying instrument can be finely adjusted, further improving the measurement accuracy of the surveying instrument; Further, an air storage cavity 851 is arranged in the inner cavity of the clamping seat 85. A piston plate 86 is slidably installed in the inner cavity of the air storage cavity 851. A sliding rod 87 is fixedly installed on the side wall of the piston plate 86. A return spring 88 is wound and installed on the side wall of the sliding rod 87. One end of the return spring 88 is fixedly installed on the side wall of the piston plate 86, and the other end is fixedly installed on the side wall of the inner cavity of the air storage cavity 851. A blower 89 is fixedly installed in the middle of the front end face of the top plate 5; The sliding rod 87 is connected through the clamping seat 85. An air inlet pipe 852 communicating with the air storage cavity 851 is fixedly installed on the rear end face of the clamping seat 85. A one-way air valve with an outlet facing the inner cavity of the air storage cavity 851 is arranged in the inner cavity of the air inlet pipe 852. An air outlet pipe 853 communicating with the air storage cavity 851 is fixedly installed on the front end face of the clamping seat 85. The air outlet pipe 853 is fixedly connected to the blower 89. A one-way air valve with an outlet facing the inner cavity of the blower 89 is arranged in the inner cavity of the air outlet pipe 853.

[0025] It should be noted that when the clamping seats 85 on both sides approach each other, the sliding rod 87 slidably installed on the side wall of the clamping seat 85 will contact the surveying instrument. The surveying instrument can squeeze the sliding rod 87, so that the sliding rod 87 drives the piston plate 86 to slide outward in the inner cavity of the air storage cavity 851. At this time, when the clamping seat 85 clamps the surveying instrument, the inner cavity volume of the air storage cavity 851 will continuously increase, and air can be inhaled from the outside and enter the left cavity of the air storage cavity 851 through the air inlet pipe 852; When the clamping seats 85 on both sides move away from each other, under the elastic force of the return spring 88, the sliding rod 87 drives the piston plate 86 to slide inward in the inner cavity of the air storage cavity 851. At this time, when the clamping seat 85 releases the surveying instrument, the inner cavity volume of the air storage cavity 851 will continuously decrease, and the air in the inner cavity of the air storage cavity 851 can enter the blower 89 through the air outlet pipe 853. The blower 89 will continuously blow downward, so as to blow the dust on the lens and the shell of the surveying instrument, prevent dust from entering the inside of the shell when the surveying instrument is stored, resulting in damage to the internal electronic components of the surveying instrument, and improving the service life of the surveying instrument.

[0026] Further, the support mechanism 9 includes a top seat 91 fixedly installed on the lower end surface of the connection cover 6. The side walls of the top seat 91 are rotatably installed with support plates 92. The lower part of the side wall of the support plate 92 is rotatably installed with a base 93. The lower end surface of the base 93 is fixedly installed with ground nails. The inner cavity of the top seat 91 is rotatably installed with an adjustment screw 94. An adjustment seat 95 is threadedly installed on the side wall of the adjustment screw 94; The bottom surface of the inner cavity of the connection cover 6 is fixedly installed with a support motor 96 through a frame. The output shaft end of the support motor 96 penetrates the connection cover 6 and is fixedly installed with the adjustment screw 94. A plug is fixedly installed on the lower end surface of the adjustment screw 94. The outer side walls of the adjustment seat 95 are fixedly installed with connecting plates 97. The outer ends of the connecting plates 97 are fixedly installed with limit rods 98. Limit grooves 921 are opened on the side walls of the support plates 92. The limit rods 98 slide in the inner cavities of the limit grooves 921.

[0027] Working principle: During operation, the user can start the support motor 96 to run, causing the adjustment screw 94 to rotate. Through the threaded connection between the adjustment screw 94 and the adjustment seat 95, under the limiting effect of the support plate 92 on the connecting plate 97 fixedly installed on the side wall of the adjustment seat 95, the adjustment seat 95 will drive the connecting plate 97 to move up and down on the side wall of the adjustment screw 94. Since the length of the support plate 92 is fixed, at this time, the limit rod 98 will slide in the inner cavity of the limit groove 921 opened on the side wall of the support plate 92, so that the distance between multiple support plates 92 changes. When the angle between the support plate 92 and the vertical direction continuously decreases, the height of the top seat 91 continuously rises. When the angle between the support plate 92 and the vertical direction continuously increases, the height of the top seat 91 continuously sinks. At this time, the entire device can realize the function of adjusting the height of the theodolite to make flexible adjustments according to different terrains and measurement requirements. Through the setting of the base 93, the ground nails can be firmly embedded in the ground to maintain the stability of the theodolite during use. By fixedly installing a plug on the lower end surface of the adjustment screw 94, it can prevent the adjustment seat 95 from sliding out of the side wall of the adjustment screw 94; After determining the height of the equipment support 1, the user can start the clamping motor 52 to run, causing the bidirectional screw 82 to rotate. Since the thread directions on the left and right sides of the bidirectional screw 82 are opposite and the sliding seats 83 are threadedly connected to the bidirectional screw 82, the sliding seats 83 on the left and right sides can simultaneously move towards the middle of the side wall of the bidirectional screw 82. The electric push rods 84 can drive the clamping seats 85 on the left and right sides to approach each other to realize the stable clamping of the theodolite, preventing the theodolite from slipping off the side wall of the clamping seat 85 and ensuring the safety of the theodolite during use. Through the setting of the electric push rods 84, the height of the theodolite can be finely adjusted to further improve the measurement accuracy of the theodolite; When the clamping seats 85 on the left and right sides approach each other, the sliding rods 87 slidably mounted on the side walls of the clamping seats 85 will contact the surveying instrument. The surveying instrument can extrude the sliding rods 87, causing the sliding rods 87 to drive the piston plate 86 to slide outward in the inner cavity of the air storage chamber 851. At this time, when the clamping seats 85 clamp the surveying instrument, the inner cavity volume of the air storage chamber 851 will continuously increase, and air can be inhaled from the outside and enter the left cavity of the air storage chamber 851 through the air inlet pipe 852; When the clamping seats 85 on the left and right sides move away from each other, under the elastic force of the return spring 88, the sliding rods 87 drive the piston plate 86 to slide inward in the inner cavity of the air storage chamber 851. At this time, when the clamping seats 85 release the surveying instrument, the inner cavity volume of the air storage chamber 851 will continuously decrease, and the air in the inner cavity of the air storage chamber 851 can enter the blower 89 through the air outlet pipe 853. The blower 89 will continuously blow downward, realizing the blowing of dust on the lens and the housing of the surveying instrument, avoiding the entry of dust into the housing of the surveying instrument when it is stored, resulting in damage to the internal electronic components of the surveying instrument, and improving the service life of the surveying instrument; After the surveying instrument is installed below the top plate 5, the user can start the lifting motor 75 to run, causing the lifting worm 72 to drive the lifting worm gear 74 to rotate. The lifting worm gear 74 can drive the first coupling shaft 73 to rotate the side plate 3, so as to adjust the vertical angle of the surveying instrument below the top plate 5. The user starts the transverse movement motor 710 to run, causing the transverse movement worm 77 to drive the transverse movement worm gear 79 to rotate. The transverse movement worm gear 79 can drive the second coupling shaft 78 to rotate the top plate 5, so as to adjust the tilt angle of the surveying instrument below the top plate 5. Thus, through the above description, the device can realize the function of quickly leveling the surveying instrument, greatly improving the work efficiency of surveying personnel. At the same time, through the transmission mode of the worm gear and the worm, it is not necessary for the motor to continuously work, and the position of the surveying instrument can still be fixed, saving the use cost and improving the environmental protection performance.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Any simple modification or equivalent replacement of the technical solution of the present invention by those of ordinary skill in the art shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A surveying and mapping stand with a positioning structure for land surveying and mapping, comprising an equipment support (1), characterized in that: A vertical plate (2) is fixedly installed at the rear side of the upper end surface of the equipment support (1). A side plate (3) is rotatably installed on the front end surface of the vertical plate (2). An extension plate (4) is fixedly installed on the left end surface of the side plate (3). A top plate (5) is rotatably installed on the right end surface of the extension plate (4). A surveying instrument is arranged below the top plate (5). A connection cover (6) is fixedly installed in the middle of the lower end surface of the equipment support (1). Further included are: A leveling mechanism (7) which is arranged on the side walls of the vertical plate (2) and the extension plate (4), and the leveling mechanism (7) is used for leveling the surveying instrument; A clamping mechanism (8) which is arranged on the left and right sides of the lower end surface of the top plate (5), and the clamping mechanism (8) is used for limiting the surveying instrument; A supporting mechanism (9) which is arranged on the lower end surface of the connection cover (6), and the supporting mechanism (9) is used for adjusting the height of the equipment support (1).

2. The surveying and mapping frame with a positioning structure for land surveying and mapping according to claim 1, characterized in that: The leveling mechanism (7) includes a first support plate (71) fixedly installed on the rear end surface of the vertical plate (2). A lifting worm (72) is rotatably installed in the inner cavities of the first support plates (71) on the left and right sides. The rear end of the side plate (3) penetrates through the vertical plate (2) and is fixedly installed with a first coupling shaft (73). A lifting worm gear (74) is fixedly installed on the rear end surface of the first coupling shaft (73). A lifting motor (75) is fixedly installed on the rear end surface of the vertical plate (2) through a frame.

3. A surveying and mapping frame with a positioning structure for land surveying according to claim 2, characterized in that: The leveling mechanism (7) further includes a second support plate (76) fixedly installed on the left end surface of the extension plate (4). A transverse movement worm (77) is rotatably installed between the front and rear second support plates (76). The left end surface of the top plate (5) penetrates through the extension plate (4) and is fixedly installed with a second coupling shaft (78). A transverse movement worm gear (79) is fixedly installed on the left end surface of the second coupling shaft (78). A transverse movement motor (710) is fixedly installed on the left end surface of the extension plate (4) through a frame.

4. A surveying frame with a positioning structure for land surveying according to claim 3, characterized in that: The lifting worm (72) is meshed and connected with the lifting worm gear (74), the output shaft end of the lifting motor (75) is fixedly connected with the lifting worm (72), the transverse movement worm (77) is meshed and connected with the transverse movement worm gear (79), and the output shaft end of the transverse movement motor (710) is fixedly connected with the transverse movement worm (77).

5. A surveying frame with a positioning structure for land surveying according to claim 1, characterized in that: The clamping mechanism (8) includes positioning plates (81) fixedly installed on the left and right sides of the upper end surface of the top plate (5). A bidirectional screw (82) is rotatably installed between the positioning plates (81) on the left and right sides. Sliding seats (83) are threadedly installed on the left and right sides of the side wall of the bidirectional screw (82). An electric push rod (84) is fixedly installed on the lower end surface of the sliding seat (83). A clamping seat (85) is fixedly installed on the piston rod end of the electric push rod (84).

6. The surveying and mapping frame with a positioning structure for land surveying according to claim 5, characterized in that: A sliding groove (51) is provided in the middle of the upper end surface of the top plate (5). The sleeve end of the electric push rod (84) slides in the inner cavity of the sliding groove (51). The thread directions on the left and right sides of the bidirectional screw rod (82) are opposite. The surveying instrument is arranged between the clamping seats (85) on the left and right sides. The inner side wall of the clamping seat (85) is provided with anti-slip textures. A clamping motor (52) is fixedly installed on the left side of the upper end surface of the top plate (5) through a frame. The output shaft end of the clamping motor (52) is fixedly connected to the bidirectional screw rod (82).

7. A surveying and mapping frame with a positioning structure for land surveying according to claim 5, characterized in that: An air storage cavity (851) is provided in the inner cavity of the clamping seat (85). A piston plate (86) is slidably installed in the inner cavity of the air storage cavity (851). A sliding rod (87) is fixedly installed on the side wall of the piston plate (86). A return spring (88) is wound and installed on the side wall of the sliding rod (87). One end of the return spring (88) is fixedly installed on the side wall of the piston plate (86), and the other end is fixedly installed on the inner cavity side wall of the air storage cavity (851). A purging device (89) is fixedly installed in the middle of the front end surface of the top plate (5).

8. A surveying and mapping frame with a positioning structure for land surveying according to claim 7, characterized in that: The sliding rod (87) is connected through the clamping seat (85). An air inlet pipe (852) communicating with the air storage cavity (851) is fixedly installed on the rear end surface of the clamping seat (85). A one-way air valve with an outlet facing the inner cavity of the air storage cavity (851) is provided in the inner cavity of the air inlet pipe (852). An air outlet pipe (853) communicating with the air storage cavity (851) is fixedly installed on the front end surface of the clamping seat (85). The air outlet pipe (853) is fixedly connected to the purging device (89). A one-way air valve with an outlet facing the inner cavity of the purging device (89) is provided in the inner cavity of the air outlet pipe (853).

9. A surveying and mapping frame with a positioning structure for land surveying and mapping according to claim 1, characterized in that: The support mechanism (9) includes a top seat (91) fixedly installed on the lower end surface of the connection cover (6). Support plates (92) are rotatably installed around the side wall of the top seat (91). A base (93) is rotatably installed on the lower part of the side wall of the support plate (92). A ground nail is fixedly installed on the lower end surface of the base (93). An adjusting screw rod (94) is rotatably installed in the inner cavity of the top seat (91). An adjusting seat (95) is threadedly installed on the side wall of the adjusting screw rod (94).

10. A surveying and mapping frame with a positioning structure for land surveying according to claim 9, characterized in that: A support motor (96) is fixedly installed on the bottom surface of the inner cavity of the connection cover (6) through a frame. The output shaft end of the support motor (96) passes through the connection cover (6) and is fixedly installed on the adjusting screw rod (94). A plug is fixedly installed on the lower end surface of the adjusting screw rod (94). Connecting plates (97) are fixedly installed around the outer side wall of the adjusting seat (95). Limiting rods (98) are fixedly installed at the outer ends of the connecting plates (97). A limiting groove (921) is provided on the side wall of the support plate (92). The limiting rods (98) slide in the inner cavity of the limiting groove (921).

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