Continuous measurement device for land surveying and mapping

Abstract

The invention discloses a continuous measuring device for land surveying and mapping, and belongs to the technical field of land surveying and mapping, the continuous measuring device for land surveying and mapping comprises a total station and a foot stool, the foot stool comprises a supporting plate and three supporting legs, the three supporting legs are rotatably connected with the bottom wall of the supporting plate, a threaded groove is formed in the center position of the bottom wall of the supporting plate, and the threaded groove is in threaded connection with the supporting plate. A screw rod is in threaded connection with the interior of the threaded groove, a telescopic rod is fixedly connected to the bottom of the screw rod, and a fixed disc is rotationally connected to the other end of the telescopic rod; the side wall of the side, facing the center position of the supporting plate, of each supporting leg is rotationally connected with a flitch plate, and an auxiliary mechanism used for assisting in positioning is arranged in the opening. According to the invention, a plurality of devices capable of fixing the position of the foot stool are arranged at the bottom of the total station, so that the splitting angle and position of the foot stool can be ensured when a worker carries the total station to turn, and the purposes of rapid leveling and continuous measurement of the total station are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of land surveying and mapping, and in particular relates to a continuous measuring device for land surveying and mapping. Background Art

[0002] Land surveying refers to the process of measuring, recording and depicting the location, shape, size and mutual relationship of natural geographical elements or artificial facilities on the surface of the earth using various technologies and methods. Whether in land rights confirmation and municipal planning, or in engineering construction and environmental protection, it provides necessary basic data and important technical support. Through accurate land surveying, it can also better utilize and protect land resources and promote the sustainable development of social economy. At present, instruments for land surveying can be roughly divided into instruments for measuring distance and angle, instruments for measuring elevation, instruments for measuring area and remote sensing measurement instruments according to their uses.

[0003] Take the total station as an example. The total station is a widely used surveying and mapping instrument. After leveling the instrument, the crosshairs in the eyepiece need to be aligned with several prisms in the distance for the total station to measure. Both the prisms and the total station need to be set up in the construction site in advance. The prism has a simple structure and can be installed quickly, so all prisms can be installed at one time. However, due to cost considerations, the number of total stations is usually small. If you want to measure multiple groups of prisms separately, the staff needs to manually move the total station to different locations. Although the ground flatness of some work sites is relatively high, it is difficult to ensure that the total station's bracket will not shift during the transportation process. Therefore, when continuous measurement of multiple positions is required, the total station needs to be re-leveled again and again. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a continuous measurement device for land surveying and mapping.

[0005] The technical solution adopted to solve the above technical problems is:

[0006] A continuous measuring device for land surveying and mapping, comprising a total station and a tripod, the tripod comprising a support plate and three legs, the total station is mounted on the support plate, the three legs are rotatably connected to the bottom wall of the support plate, a thread groove is provided at the center of the bottom wall of the support plate, a spiral rod is threadedly connected in the thread groove, a telescopic rod is fixedly connected to the bottom of the spiral rod, and a fixed plate is rotatably connected to the other end of the telescopic rod;

[0007] Each of the supporting legs is rotatably connected to a side wall facing the center of the support plate, and each of the side walls facing the center of the support plate is provided with an opening, wherein an auxiliary mechanism for assisting positioning is provided in the opening;

[0008] The fixed plate includes a top plate and a bottom plate, the telescopic rod is rotatably connected to the top wall of the top plate at one end away from the support plate, the bottom wall of the top plate is rotatably connected to the top wall of the bottom plate, three movement grooves are provided on the top of the top plate, the three movement grooves are open at one end facing away from the center of the fixed plate, a movement block is slidably connected in the movement groove, and a driving mechanism for driving the movement block is jointly arranged between the movement block and the top plate.

[0009] Through the above technical solution, a number of devices that can fix the position of the tripod are arranged at the bottom of the total station, so that when the staff carries the total station to turn the point, the fork angle and position of the tripod can be guaranteed, thereby achieving the purpose of rapid leveling and continuous measurement of the total station.

[0010] Furthermore, transverse plates are fixedly provided on both side walls of the motion groove, and transverse grooves are also provided on both side walls of the motion block. The two transverse plates are respectively slidably connected to the transverse grooves on both sides of the motion block.

[0011] Through the above technical solution, the arrangement of the transverse plate and the transverse groove enables the motion block to slide more stably in the motion groove, and the transverse plate can also guide the motion block to move along its direction, thereby preventing the motion block from shaking.

[0012] Furthermore, the auxiliary mechanism includes two clamping rods, two rotating rods, two center rods, two arc blocks and two resisting rods. The two center rods are respectively fixedly arranged in the openings, the two rotating rods are respectively rotatably connected to the side walls of the two center rods, the two clamping rods are respectively fixedly connected to the side walls of the two rotating rods facing the fixed disk, the two arc blocks are respectively fixedly connected to the side walls of the two rotating rods away from the clamping rods, a fault is provided on the top of the arc block, two through holes are provided on the top wall of the sticking plate, the two resisting rods respectively pass through the two through holes, and one end of the two resisting rods respectively resists against the top wall of the arc block.

[0013] Through the above technical solution, the sticking plate originally attached to the side wall of the leg can be lifted to a horizontal position when the position of the leg needs to be fixed, and then the extension plate in the fixed plate can be extended into the opening, thereby fixing the position between the sticking plate and the fixed plate, thereby determining the angle position of the leg.

[0014] Furthermore, the two push rods are fixedly connected to a lifting plate at one end away from the arc block, the outer diameter of the push rod end close to the lifting plate is smaller than the outer diameter of the end abutting against the arc block, and the bottom wall of the lifting plate abuts against the side wall of the plate.

[0015] Through the above technical solution, the lifting plate fixes the two support rods together, and the staff can lift the lifting plate to drive the two support rods to rise together. Moreover, since the thickness of the support rods is not uniform, when the plate moves with the total station, the larger support rod at the lower end will not fall out of the perforation.

[0016] Furthermore, the driving mechanism includes a connecting block, a chuck, three latching teeth, three thumb wheels, three threaded rods, three displacement blocks, three connecting rods and three extension plates, the connecting block is fixedly connected to the top of the chassis, the chuck is fixedly arranged on the top wall of the connecting block, the three latching teeth are respectively fixedly arranged on the bottom wall of the moving block, the three latching teeth are respectively engaged with the chuck, a cavity is opened in the moving block, a rotating hole is opened on the top of the moving block, the rotating hole is communicated with the cavity, the thumb wheel is rotatably connected to the side wall of the rotating hole, the threaded rod is fixedly connected to the center position of the thumb wheel, the end of the threaded rod away from the thumb wheel is rotatably connected to the side wall of the cavity, the displacement block is threadedly connected to the threaded rod, the connecting rod is fixedly connected to the bottom wall of the displacement block, the extension plate is fixedly connected to the side wall of the end of the connecting rod away from the displacement block, the moving block is provided with an extension opening at one end facing the sticking plate, the extension plate extends from the extension opening, the extension plate extends into the opening, and one end of the extension plate abuts against the side walls of two arc blocks.

[0017] Through the above technical solution, the staff can rotate the chassis to drive the chuck to rotate, and then the several moving blocks are synchronously driven to expand outward or contract inward, which is convenient for the staff to quickly deploy the total station for continuous measurement.

[0018] Furthermore, the side walls on both sides of the extension plate are respectively provided with a clamping groove, and the two clamping rods are respectively clamped with the side walls of the clamping groove, and one end of the clamping rod abutting against the arc block is also designed to be arc-shaped.

[0019] Through the above technical solution, when the extension plate is extended into the opening, the extension plate will push the arc block inward, thereby causing the rotating rod to rotate, and the clamping rod at the other end of the rotating rod will be inserted into the clamping groove of the side wall of the extension plate, thereby locking the position between the extension plate and the sticking plate. The arc-shaped design also makes it easier for the clamping rod to rotate in or out of the clamping groove.

[0020] Furthermore, the telescopic rod includes a movable rod and a fixed rod, the spiral rod is fixedly connected to the top of the movable rod, the movable rod is sleeved inside the fixed rod, the bottom of the fixed rod is rotatably connected to the top of the fixed plate, and a vertical groove is opened on the side wall of the movable rod.

[0021] Through the above technical solution, the telescopic rod not specifically mentioned above is further limited, and the movable rod can be extended from the fixed rod. The cooperation of the two can cooperate with the total station to measure at different heights.

[0022] Furthermore, a pressing groove is provided on the side wall of the fixed rod, a pressing block is installed in the pressing groove, a short block is fixedly connected to the side wall of the pressing block facing the movable rod, a friction block is fixedly connected to the side wall of the short block facing away from the pressing block, the friction block is located above the vertical groove, baffles are fixedly connected to the side walls on both sides of the pressing groove respectively, a telescopic spring is fixedly connected to the side wall of the baffle facing the pressing block, and the other end of the telescopic spring is fixedly connected to the side wall of the pressing block.

[0023] Through the above technical solution, when the staff presses the button, the friction block can be pressed into the vertical groove, thereby fixing the position between the movable rod and the fixed rod, and then the fixed plate can fix the distance between the legs, making it convenient for the staff to carry the legs and the total station to turn the point together.

[0024] Furthermore, the side wall of the pressing groove is rotatably connected to a toggle rod, the side wall of the other end of the toggle rod is fixedly connected to an insertion rod, the side wall of the pressing block is provided with a heart-shaped groove, and the insertion rod extends into the heart-shaped groove at one end away from the toggle rod.

[0025] Through the above technical solution, the setting of the heart-shaped groove allows the staff to press twice to achieve different effects. The first press will cause the insertion rod to be in the middle position of the heart-shaped groove. After the second press, the insertion rod will slide to the end position of the heart-shaped groove, thereby causing the friction block to leave the vertical groove, making it convenient for the staff to adjust the distance between the movable rod and the fixed rod.

[0026] The beneficial effects of the present invention are as follows:

[0027] (1) The present invention arranges a chassis, a top plate, a connecting block, a chuck, a clamping tooth, a dial, a threaded rod, a displacement block, a connecting rod and an extension plate inside the tripod at the bottom of the total station, so that the staff can fix the current unfolding angle after the tripod is unfolded for the first time. When continuous measurement is required, even if the tripod is moved, the unfolding angle of the tripod will not be affected. Therefore, the staff can quickly deploy the total station and the tripod, which is convenient for the staff to continuously and quickly measure;

[0028] (2) The present invention fixes the top of the fixing plate to the bottom of the support plate through the cooperation of the spiral rod and the threaded groove. When the fixing plate is not needed, it can be removed without affecting the folding of the tripod. When it is needed, it can also be quickly installed to the bottom of the support plate of the tripod. At the same time, the telescopic rod arranged between the fixing plate and the support plate also ensures that the fixing plate can still be fixed and limited with the side plate of the tripod after the tripod is forked;

[0029] (3) The present invention synchronously drives the three moving blocks by rotating the chassis, thereby quickly driving the three moving blocks roughly to the specified position. If the extension plate is to be driven more precisely, the staff needs to manually rotate the dial to adjust it, so that no matter what angle the legs are unfolded to, the extension plate can be inserted into the inside of the sticking plate, thereby fixing the position between the fixed plate and the legs, making it convenient for the staff to synchronously move the total station and the tripod. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the thread groove and the spiral rod in the present invention;

[0032] Figure 3 It is a schematic diagram of the structure of the fixed plate and the supporting legs in the present invention;

[0033] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0034] Figure 5 It is a structural schematic diagram of the auxiliary mechanism in the present invention;

[0035] Figure 6 It is a schematic diagram of the structure inside the motion block of the present invention;

[0036] Figure 7 It is a structural schematic diagram of the chuck and the teeth in the present invention;

[0037] Figure 8 It is a structural schematic diagram of the telescopic rod in the present invention;

[0038] Fig. 9 yes Figure 8 A partial enlarged view of point B in the middle.

[0039] Figure numerals: 1, total station; 2, support plate; 3, support leg; 4, threaded groove; 5, screw rod; 7, sticking plate; 8, opening; 9, top plate; 10, bottom plate; 11, movement groove; 12, movement block; 13, cross plate; 14, cross groove; 15, clamping rod; 16, rotating rod; 17, center rod; 18, arc block; 19, stop rod; 20, fault; 21, perforation; 22, lifting plate; 23, connecting block; 24, Chuck; 25. Clamping teeth; 26. Pulley; 27. Threaded rod; 28. Displacement block; 29. ​​Connecting rod; 30. Extension plate; 31. Rotation hole; 32. Extension opening; 33. Slot; 34. Movable rod; 35. Fixed rod; 36. Vertical slot; 37. Pressing slot; 38. Pressing block; 39. Short block; 40. Friction block; 41. Baffle; 42. Telescopic spring; 43. Toggle rod; 44. Inserting rod; 45. Heart-shaped slot. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] like Figure 1 - Fig. 9 As shown, a continuous measuring device for land surveying and mapping of this embodiment includes a total station 1 and a tripod, the tripod includes a support plate 2 and three legs 3, the total station 1 is mounted on the support plate 2, the three legs 3 are rotatably connected to the bottom wall of the support plate 2 respectively, the connection relationship between the total station 1 and the support plate 2 is consistent with the common connection relationship on the market, and can be installed by snapping in or removed freely.

[0042] Reference Figure 2 and Figure 3 A threaded groove 4 is provided at the center of the bottom wall of the support plate 2, and a spiral rod 5 is threadedly connected in the threaded groove 4. A telescopic rod is fixedly connected to the bottom of the spiral rod 5, and a fixed plate is rotatably connected to the other end of the telescopic rod. The telescopic rod includes a movable rod 34 and a fixed rod 35. The spiral rod 5 is fixedly connected to the top of the movable rod 34, and the movable rod 34 is sleeved inside the fixed rod 35. The bottom of the fixed rod 35 is rotatably connected to the top of the fixed plate. A vertical groove 36 is provided on the side wall of the movable rod 34. The telescopic rod not specifically described above is further limited here. The movable rod 34 can be extended from the fixed rod 35. The cooperation of the two can cooperate with the support leg 3 to be unfolded to different angles for measurement.

[0043] Reference Figure 8 and Fig. 9 A pressing groove 37 is provided on the side wall of the fixed rod 35, and a pressing block 38 is installed in the pressing groove 37. A short block 39 is fixedly connected to the side wall of the pressing block 38 facing the movable rod 34, and a friction block 40 is fixedly connected to the side wall of the short block 39 facing away from the pressing block 38. The friction block 40 is located above the vertical groove 36, and the side wall of the friction block 40 facing the vertical groove 36 can be set as a wear-resistant layer to further enhance the friction between the friction block 40 and the vertical groove 36. Baffles 41 are fixedly connected to the side walls on both sides of the pressing groove 37 respectively, and a telescopic spring 42 is fixedly connected to the side wall of the baffle 41 facing the pressing block 38. The other end of the telescopic spring 42 is fixedly connected to the side wall of the pressing block 38. The force applied by the telescopic spring 42 to the pressing block 38 will cause the pressing block 38 to be in a lifted state, that is, the friction block 40 does not contact the vertical groove 36.

[0044] The side wall of the pressing groove 37 is rotatably connected to a toggle rod 43, and the other end of the side wall of the toggle rod 43 is fixedly connected to an insertion rod 44. A heart-shaped groove 45 is provided on the side wall of the pressing block 38, and the insertion rod 44 extends into the heart-shaped groove 45 at one end away from the toggle rod 43. There is a flat position at the corner of the heart-shaped groove 45, so the insertion rod 44 can be stuck at this position when it moves to this position.

[0045] Reference Figure 3 , Figure 4 and Figure 5 , each support leg 3 is rotatably connected to a side wall on the side facing the center position of the support plate 2, and each plate 7 is provided with an opening 8 at one end facing the center position of the support plate 2, and an auxiliary mechanism for assisting positioning is provided in the opening 8, the auxiliary mechanism includes two clamping rods 15, two rotating rods 16, two center rods 17, two arc blocks 18 and two abutment rods 19, the two center rods 17 are respectively fixedly arranged in the openings 8, the two rotating rods 16 are respectively rotatably connected to the side walls of the two center rods 17, the two clamping rods 15 are respectively fixedly connected to the side walls of the two rotating rods 16 facing the fixed disk, the two arc blocks 18 are respectively fixedly connected to the side walls of the two rotating rods 16 away from the clamping rods 15, and a fault 20 is provided on the top of the arc block 18, and the height of the fault 20 is less than the height of the arc block 18.

[0046] Two through holes 21 are provided on the top wall of the plate 7, and two abutment rods 19 extend out from the two through holes 21 respectively. One end of the two abutment rods 19 abuts against the top wall of the arc block 18 respectively. The abutment rods 19 originally abut against the top of the arc block 18. When the arc block 18 rotates, the abutment rods 19 will be moved to the fault 20, thereby abutting against the side wall of the arc block 18.

[0047] The two supporting rods 19 are fixedly connected to a lifting plate 22 at one end away from the arc block 18. The outer diameter of the end of the supporting rod 19 close to the lifting plate 22 is smaller than the outer diameter of the end that is against the arc block 18. The bottom wall of the lifting plate 22 is against the side wall of the sticking plate 7. The lifting plate 22 fixes the two supporting rods 19 together. The staff can lift the lifting plate 22 and drive the two supporting rods 19 to rise together. Moreover, since the thickness of the supporting rods 19 is not uniform, when the sticking plate 7 moves with the total station 1, the larger supporting rod 19 at the lower end will not fall from the perforation 21.

[0048] Reference Figure 3The fixed plate includes a top plate 9 and a bottom plate 10. The end of the telescopic rod away from the supporting plate 2 is rotatably connected to the top wall of the top plate 9. The bottom wall of the top plate 9 is rotatably connected to the top wall of the bottom plate 10. Three movement grooves 11 are provided on the top of the top plate 9. The three movement grooves 11 are open at one end facing away from the center of the fixed plate. A movement block 12 is slidably connected in the movement groove 11. Both side walls of the movement groove 11 are fixedly provided with transverse plates 13. Both side walls of the movement block 12 are also provided with transverse grooves 14. The two transverse plates 13 are respectively slidably connected to the transverse grooves 14 on both sides of the movement block 12. The arrangement of the transverse plates 13 and the transverse grooves 14 allows the movement block 12 to slide more stably in the movement groove 11, and the transverse plates 13 can also guide the movement block 12 to move along its direction, thereby preventing the movement block 12 from shaking.

[0049] Reference Figure 3 , Figure 4 , Figure 6 and Figure 7 A driving mechanism for driving the moving block 12 is installed between the moving block 12 and the top plate 9. The driving mechanism includes a connecting block 23, a chuck 24, three latch teeth 25, three dial wheels 26, three threaded rods 27, three displacement blocks 28, three connecting rods 29 and three extension plates 30. The connecting block 23 is fixedly connected to the top of the bottom plate 10, the chuck 24 is fixedly arranged on the top wall of the connecting block 23, the three latch teeth 25 are respectively fixedly arranged on the bottom wall of the moving block 12, and the three latch teeth 25 are respectively connected to the chuck 24. The moving block 12 is meshed, a cavity is opened in the moving block 12, a rotating hole 31 is opened on the top of the moving block 12, the rotating hole 31 is communicated with the cavity, the dial 26 is rotatably connected to the side wall of the rotating hole 31, the threaded rod 27 is fixedly connected to the center position of the dial 26, the end of the threaded rod 27 away from the dial 26 is rotatably connected to the side wall of the cavity, the upper half of the dial 26 extends out of the rotating hole 31, and the center position of the dial 26 is still in the cavity, so when the staff turns the dial 26, the dial 26 can drive the threaded rod 27 to rotate.

[0050] The displacement block 28 is threadedly connected to the threaded rod 27, the connecting rod 29 is fixedly connected to the bottom wall of the displacement block 28, the extension plate 30 is fixedly connected to the side wall of the connecting rod 29 away from the displacement block 28, the end of the motion block 12 facing the sticking plate 7 is provided with a protruding opening 32, the extension plate 30 extends from the protruding opening 32, the extension plate 30 extends into the opening 8, one end of the extension plate 30 is against the side walls of the two arc-shaped blocks 18, and the side walls of the extension plate 30 are respectively provided with a slot 33, and the two clamping rods 15 are respectively engaged with the side walls of the slots 33, and one end of the lever 15 that abuts against the arc block 18 is also arc-shaped. When the extension plate 30 is extended into the opening 8, the extension plate 30 will push the arc block 18 inward, thereby causing the rotating rod 16 to rotate, and the lever 15 at the other end of the rotating rod 16 will be engaged with the slot 33 on the side wall of the extension plate 30, thereby locking the position between the extension plate 30 and the sticking plate 7. The arc-shaped design also makes it easier for the lever 15 to rotate in or out of the slot 33.

[0051] The working principle of this embodiment is as follows: in the initial state, the total station 1 has not been installed on the support plate 2, and the three legs 3 are in a gathered state, the sticking plates 7 on the side walls of the legs 3 are also attached to the side walls of the legs 3, and the telescopic rod and the fixing plate at the bottom are not installed on the bottom of the support plate 2;

[0052] When measuring for the first time, first install the total station 1 on the support plate 2, then unfold the three legs 3, and adjust the angle position of the legs 3 so that the total station 1 is leveled, and then rotate the spiral rod 5 into the threaded groove 4. At this time, the pressing block 38 on the side wall of the fixed rod 35 is in a raised state, and the staff can adjust the distance between the movable rod 34 and the fixed rod 35 so that the height of the extension plate 30 on the side wall of the moving block 12 is consistent with the height of the plate 7 after being horizontally placed, and then press the pressing block 38, the insertion rod 44 slides along the heart-shaped groove 45 to the end position of the heart-shaped groove 45, and then the pressing block 38 will be restricted to the pressing groove 37, and at the same time, the short block 39 fixed on the side wall of the pressing block 38 will drive the friction block 40 to enter the vertical groove 36 on the side wall of the movable rod 34. When the telescopic spring 42 is stretched, the relative position between the movable rod 34 and the fixed rod 35 is fixed, thereby fixing the height of the top plate 9 and the bottom plate 10;

[0053] After the height of the chassis 10 is fixed, the staff can rotate the chassis 10. Driven by the connecting block 23, the chuck 24 will rotate along with the chassis 10, so that the clamping teeth 25 on the top of the chuck 24 drive the moving block 12 to move along the moving groove 11. The three moving blocks 12 move outward together. When the moving block 12 moves to the position close to the closest leg 3, the chassis 10 can be stopped from rotating.

[0054] Next, the staff manually rotates the dial wheel 26 one by one, and the rotation of the dial wheel 26 drives the threaded rod 27 to rotate together. The displacement block 28 installed on the threaded rod 27 drives the connecting rod 29 and the extension plate 30 to extend from the extension opening 32. Since the sticking plate 7 is lifted with one hand in advance, the extension plate 30 will enter the sticking plate 7 from the opening 8, and the extension plate 30 will then squeeze the two arc blocks 18, thereby causing the two rotating rods 16 to rotate around the central rod 17, and the clamping rod 15 set at the other end of the rotating rod 16 will be inserted into the clamping groove 33 on the side wall of the extension plate 30, and at the same time, the original support After the arc block 18 moves, the support rod 19 on the top wall of the arc block 18 will move to the fault 20, thereby blocking the position of the arc block 18. The support rod 19 blocks the arc block 18, and the extension plate 30 limits the position of the blocking rod 15. The cooperation of the two will fix the position between the extension plate 30 and the sticking plate 7, thereby fixing the position between the top plate 9 and the support leg 3. When the staff wants to measure continuously, they can move the total station 1 and the support leg 3 together, and the angle distance between the support legs 3 will be fixed. After putting down the total station 1, the staff can quickly deploy it, thereby speeding up the measurement efficiency.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A continuous measuring device for land surveying and mapping, comprising a total station (1) and a tripod, wherein the tripod comprises a support plate (2) and three legs (3), wherein the total station (1) is mounted on the support plate (2), and the three legs (3) are rotatably connected to the bottom wall of the support plate (2), respectively, and characterized in that: A thread groove (4) is provided at the center of the bottom wall of the support plate (2), a screw rod (5) is threadedly connected in the thread groove (4), a telescopic rod is fixedly connected to the bottom of the screw rod (5), and the other end of the telescopic rod is rotatably connected to a fixed plate; A side wall of each of the supporting legs (3) facing the center of the supporting plate (2) is rotatably connected to a sticking plate (7), and an opening (8) is provided at one end of each of the sticking plates (7) facing the center of the supporting plate (2), and an auxiliary mechanism for assisting positioning is provided in the opening (8); The fixed plate comprises a top plate (9) and a bottom plate (10); the end of the telescopic rod away from the support plate (2) is rotatably connected to the top wall of the top plate (9); the bottom wall of the top plate (9) is rotatably connected to the top wall of the bottom plate (10); three movement grooves (11) are provided on the top of the top plate (9); the ends of the three movement grooves (11) facing away from the center of the fixed plate are open; a movement block (12) is slidably connected in the movement groove (11); a driving mechanism for driving the movement block (12) is provided between the movement block (12) and the top plate (9).

2. The continuous measuring device for land surveying and mapping according to claim 1, characterized in that: The side walls on both sides of the movement groove (11) are fixedly provided with transverse plates (13), and the side walls on both sides of the movement block (12) are also provided with transverse grooves (14). The two transverse plates (13) are respectively slidably connected to the transverse grooves (14) on both sides of the movement block (12).

3. The continuous measuring device for land surveying and mapping according to claim 1, characterized in that: The auxiliary mechanism comprises two clamping rods (15), two rotating rods (16), two center rods (17), two arc blocks (18) and two abutting rods (19). The two center rods (17) are respectively fixedly arranged in the openings (8). The two rotating rods (16) are respectively rotatably connected to the side walls of the two center rods (17). The two clamping rods (15) are respectively fixedly connected to the side walls of the two rotating rods (16) facing the fixed disk. The two arc blocks (18) are respectively fixedly connected to the side walls of the two rotating rods (16) away from the clamping rods (15). A fault (20) is provided on the top of the arc block (18). Two through holes (21) are provided on the top wall of the sticking plate (7). The two abutting rods (19) respectively pass through the two through holes (21). One end of the two abutting rods (19) abuts against the top wall of the arc block (18).

4. The continuous measuring device for land surveying and mapping according to claim 3, characterized in that: The two abutment rods (19) are fixedly connected to a lifting plate (22) at one end away from the arc block (18); the outer diameter of the end of the abutment rod (19) close to the lifting plate (22) is smaller than the outer diameter of the end abutting against the arc block (18); the bottom wall of the lifting plate (22) abuts against the side wall of the sticking plate (7).

5. The continuous measuring device for land surveying and mapping according to claim 3, characterized in that: The driving mechanism comprises a connecting block (23), a chuck (24), three latching teeth (25), three thumbwheels (26), three threaded rods (27), three displacement blocks (28), three connecting rods (29) and three extension plates (30); the connecting block (23) is fixedly connected to the top of the chassis (10); the chuck (24) is fixedly arranged on the top wall of the connecting block (23); the three latching teeth (25) are respectively fixedly arranged on the bottom wall of the moving block (12); the three latching teeth (25) are respectively meshed with the chuck (24); a cavity is provided in the moving block (12); a rotating hole (31) is provided on the top of the moving block (12); the rotating hole (31) is communicated with the cavity; the thumbwheel (26) is connected to the rotating hole (31); The side wall of the hole (31) is rotatably connected, the threaded rod (27) is fixedly connected to the center position of the thumbwheel (26), the end of the threaded rod (27) away from the thumbwheel (26) is rotatably connected to the side wall of the cavity, the displacement block (28) is threadedly connected to the threaded rod (27), the connecting rod (29) is fixedly connected to the bottom wall of the displacement block (28), the extension plate (30) is fixedly connected to the side wall of the end of the connecting rod (29) away from the displacement block (28), the end of the movement block (12) facing the contact plate (7) is provided with a protruding opening (32), the extension plate (30) protrudes from the protruding opening (32), the extension plate (30) extends into the opening (8), and one end of the extension plate (30) abuts against the side walls of the two arc-shaped blocks (18).

6. The continuous measuring device for land surveying and mapping according to claim 5, characterized in that: The side walls of the extension plate (30) are respectively provided with clamping grooves (33), and the two clamping rods (15) are respectively clamped with the side walls of the clamping grooves (33), and one end of the clamping rod (15) abutting against the arc block (18) is also designed to be arc-shaped.

7. The continuous measuring device for land surveying and mapping according to claim 1, characterized in that: The telescopic rod comprises a movable rod (34) and a fixed rod (35), the spiral rod (5) is fixedly connected to the top of the movable rod (34), the movable rod (34) is sleeved inside the fixed rod (35), the bottom of the fixed rod (35) is rotatably connected to the top of the fixed plate, and a vertical groove (36) is provided on the side wall of the movable rod (34).

8. The continuous measuring device for land surveying and mapping according to claim 7, characterized in that: A pressing groove (37) is provided on the side wall of the fixed rod (35), a pressing block (38) is arranged in the pressing groove (37), a short block (39) is fixedly connected to the side wall of the pressing block (38) facing the movable rod (34), a friction block (40) is fixedly connected to the side wall of the short block (39) facing away from the pressing block (38), the friction block (40) is located above the vertical groove (36), baffles (41) are fixedly connected to the side walls on both sides of the pressing groove (37), a telescopic spring (42) is fixedly connected to the side wall of the baffle (41) facing the pressing block (38), and the other end of the telescopic spring (42) is fixedly connected to the side wall of the pressing block (38).

9. The continuous measuring device for land surveying and mapping according to claim 8, characterized in that: The side wall of the pressing groove (37) is rotatably connected to a toggle rod (43), and the other end of the side wall of the toggle rod (43) is fixedly connected to an insertion rod (44). The side wall of the pressing block (38) is provided with a heart-shaped groove (45), and one end of the insertion rod (44) away from the toggle rod (43) extends into the heart-shaped groove (45).

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