Portable mountain landscape engineering surveying and mapping device

Abstract

The invention belongs to the technical field of engineering surveying and mapping, and discloses a portable mountain landscape engineering surveying and mapping device which comprises a total station. Through cooperation of structures such as the supporting mechanism and the protection mechanism, the protection plate is turned over to the top of the total station, all the first supporting cylinders are turned over upwards in sequence to be in a vertical state, meanwhile, arc-shaped spring telescopic rods are shifted, the erected first supporting cylinders are surrounded by the arc-shaped spring telescopic rods, and therefore the positions of the first supporting cylinders are limited; the first hook is pulled to be hung on the first metal rod in the adjacent protection mechanism, all the protection mechanisms are operated in sequence, every two first supporting cylinders can be connected through the nylon cloth, after the total station is wrapped by all the nylon cloth, the total station can be prevented from being damaged by external sundries and dust, and furthermore, the total station can be protected from being damaged by the external sundries and dust. The first supporting cylinder is located on the periphery of the total station, so that when the device falls, the collision force of the total station can be effectively reduced, and the probability that the total station is damaged when working in a mountainous area is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering surveying and mapping, and in particular is a portable engineering surveying and mapping device for mountain landscape. Background Art

[0002] Landscape surveying in mountainous areas is a complex and important task. It mainly records various values ​​of terrain elements, vegetation elements, and geomorphic elements. Since the topography of mountainous areas is relatively complex and the measurement path is not continuous, workers generally use total stations or surveying instruments for surveying and recording.

[0003] In the prior art, the total station is generally installed on a bracket, and the height and angle of the total station are adjusted by the bracket. However, due to the potholes and dust on the roads in mountainous areas, and the need for staff to walk with the bracket and the total station to some surveying locations, the total station may be damaged due to the negligence of the staff, resulting in dust entering the total station or falling to the ground. The existing bracket cannot provide good protection for the total station. For this reason, we provide a portable mountain landscape engineering surveying and mapping device. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a portable mountain landscape engineering surveying and mapping device, which solves the problem that some surveying sites in mountainous areas require staff to carry a bracket and a total station on foot, and the total station may be damaged due to the negligence of the staff, resulting in dust entering the total station or falling to the ground.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable mountain landscape engineering surveying and mapping device, comprising a total station, and further comprising;

[0006] A support mechanism, the support mechanism comprising a support plate 1, the top of the support plate 1 is connected to a support plate 2 through a plurality of stoppers arranged at equal angles in a circumferential direction, the outer side of the support plate 1 is hinged with a protection plate through a telescopic plate, and a plurality of arc-shaped spring telescopic rods are equidistantly installed on the outer side of the protection plate;

[0007] The total station is installed on the top of the supporting plate 2;

[0008] The portable mountain landscape engineering surveying and mapping device also includes a correction mechanism installed at the bottom of the second support plate;

[0009] A plurality of protection mechanisms hinged to the outer side of the support plate at equal angles in a circular direction;

[0010] The protection mechanism comprises a support tube 1 hinged to the outside of a support plate 1, the internal thread of the support tube 1 is connected to a support tube 2, a support tube is movably installed in the interlayer of the inner wall of the support tube 1, the upper and lower ends of the outer periphery of the support tube are elastically connected to the inner wall of the support tube 1 through a spring, a nylon cloth is installed on the part of the outer periphery of the support tube located between the two springs, the end of the nylon cloth movably passes through the support tube 1 and is fixedly installed with a first hook, and a first metal rod is installed on the outer periphery of the support tube 1;

[0011] The portable mountain landscape engineering surveying and mapping device also includes a limiting mechanism fixedly mounted on the bottom of the support plate;

[0012] The limiting mechanism is used to fix the position of the correction mechanism and the total station thereon through the supporting mechanism.

[0013] Preferably, the arc-shaped spring telescopic rod is circular when fully extended, and the inner diameter of the arc-shaped spring telescopic rod is greater than the outer diameter of the support tube.

[0014] Preferably, the support mechanism further comprises a limiting ring rotatably connected to the inside of the support plate 1, a guide column movably penetrating the top of the support plate 1 is installed on the top of the limiting ring, and a spring telescopic rod is installed on the top of the support plate 1;

[0015] The limiter comprises a telescopic rod, the support plate 1 is hinged to the support plate 2 through the telescopic rod, the interior of the support plate 1 is elastically connected to the limit block through a spring, and a wedge block is installed on the top of the limit ring.

[0016] Preferably, the top of the limit block is matched with the bottom of the telescopic rod, and the side of the wedge block close to the limit block is inclined.

[0017] Preferably, the correction mechanism includes a reversing ball installed at the bottom of the second support plate, the bottom of the reversing ball is connected to a metal ball by a nylon rope, the reversing ball is movably installed in the middle of the first support plate, and the contact surface between the first support plate and the reversing ball is circumferentially installed with balls at equal angles.

[0018] Preferably, the support mechanism also includes a plurality of locking blocks hinged to the inside of a support plate at equal angles in an annular direction, the locking block is coated with a rubber layer on one side close to the reversing ball, and the inner wall of the limit ring is slidably mounted on the outer side of the locking block through a plurality of guide plates.

[0019] Preferably, the limiting mechanism comprises a protective tube fixed to a bottom of a supporting plate, a plurality of positioning plates are hingedly connected to the inside of the protective tube at equal angles in an annular direction, and a guide rod movably penetrating the outside of the protective tube is slidably mounted on the top of the positioning plate.

[0020] Preferably, the limiting mechanism also includes a plurality of spring sheets installed at equiangular annular angles inside the protective tube, each of the spring sheets respectively abuts against the top of the positioning plate, a second metal rod is installed at the hinge point of the support tube, and a second hook is installed at the top of the guide rod.

[0021] Preferably, the support mechanism further comprises a handle fixedly mounted on the top of the protection plate, a spring telescopic plate is provided at the bottom of the protection tube, and a movable end of the spring telescopic plate is inserted between the handle and the protection plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention folds the protection plate to the top of the total station by setting up the cooperation of structures such as the support mechanism and the protection mechanism, and folds each support tube one upward to a vertical state in turn, and at the same time, moves the arc spring telescopic rod so that the vertical support tube one is surrounded by the arc spring telescopic rod, thereby limiting the position of the support tube one, pulls the first hook to hang on the first metal rod in an adjacent protection mechanism, and operates each protection mechanism in turn so that every two support tubes one can be connected by nylon cloth. After each nylon cloth covers the total station, it can prevent external debris and dust from damaging the total station. Furthermore, the support tube one is located around the total station, so that when the device falls, it can effectively reduce the force of the total station being hit, and avoids the possibility of the total station being damaged when working in mountainous areas.

[0024] The present invention cooperates with structures such as a correction mechanism and a protection mechanism. When the support tube 2 is supported on the ground, the weight of the metal ball can always pull the center position of the reversing ball through the nylon rope, and the reversing ball is movably installed on the top of the support plate 1 through a roller, so that the reversing ball can move relatively smoothly. The metal ball will force the reversing ball to always drive the support plate 2 to a parallel state, thereby compensating for the inclination angle of the support tube 2 that cannot support the support plate 2 to be horizontal, thereby improving the stability of the device operation.

[0025] The present invention cooperates with structures such as a supporting mechanism and a correcting mechanism. When the total station is stable, the spring telescopic rod and the guide column are moved to make the guide column pass over the spring telescopic rod, and then the spring telescopic rod is released to block the guide column from returning to the initial position. During this period, the guide column drives the wedge block to induce the limit block to rise through the limit ring, and the inner wall of the limit block is close to the telescopic rod, so that the telescopic rod cannot support the movement of the supporting plate. In the process of rotating the limit ring by the guide column, the limit ring will also push the locking block to be close to the inner wall of the reversing ball through the guide plate, so that the reversing ball cannot move. The rubber layer coated on the inner wall outside the locking block can prevent itself from scratching the reversing ball, thereby further improving the stability of the device and the subsequent service life.

[0026] The present invention cooperates with structures such as a correction mechanism and a limit mechanism. When the protection mechanism is in a vertical state, the second hook pulls the guide rod and the positioning plate. At this time, the positioning plate can be moved and pass over the metal ball. After the second hook is hung on the second metal rod on the support tube, the positioning plate is placed obliquely above the metal ball. By pulling each second hook in turn, the metal ball can be fixed. Further, the metal ball can be prevented from swinging unsteadily through the nylon rope during transportation, thereby increasing the loss of the nylon rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the coordination between the support plate 1 and the protection mechanism structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the internal structure of the protection mechanism of the present invention;

[0030] Figure 4 It is a schematic cross-sectional view of the internal structure of the protection mechanism of the present invention;

[0031] Figure 5 This is a schematic diagram of the internal structure of the protective tube of the present invention;

[0032] Figure 6 It is a schematic diagram of the protection state formed by the support mechanism and the protection mechanism of the present invention;

[0033] Figure 7 A schematic diagram of the internal structure of the protection tube of the present invention and its cooperation with the correction mechanism;

[0034] Figure 8 It is a schematic diagram of the structural coordination between the supporting mechanism and the correcting mechanism of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure cooperation between the locking block and the reversing ball of the present invention;

[0036] Fig.10 It is a schematic diagram of the exploded view of the support plate 1 and the reversing ball structure of the present invention.

[0037] In the figure: 1. support mechanism; 11. support plate 1; 12. limiter; 121. telescopic rod; 122. spring; 123. limit block; 124. wedge block; 13. support plate 2; 14. telescopic plate; 15. protection plate; 16. arc spring telescopic rod; 17. limit ring; 18. handle; 19. spring telescopic plate; 10. guide plate; 101. locking block; 102. spring telescopic rod; 103. guide column; 2. protection mechanism; 21. support tube 1; 22. support tube 2; 23. nylon cloth; 24. clockwork spring; 25. first hook; 26. support tube; 27. first metal rod; 3. limit mechanism; 31. protection tube; 32. guide rod; 33. positioning plate; 34. spring sheet; 4. total station; 5. correction mechanism; 51. reversing ball; 52. nylon rope; 53. metal ball. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 10 As shown, the present invention provides a portable mountain landscape engineering surveying and mapping device, including a total station 4, and also including;

[0040] Support mechanism 1, support mechanism 1 comprises support plate 11, the top of support plate 11 is connected to support plate 2 13 through a plurality of stoppers 12 arranged at equal angles in the annular direction, the outer side of support plate 11 is hinged with protection plate 15 through telescopic plate 14, and a plurality of arc spring telescopic rods 16 are equidistantly installed on the outer side of protection plate 15;

[0041] The total station 4 is installed on the top of the supporting plate 13;

[0042] The portable mountain landscape engineering surveying and mapping device also includes a correction mechanism 5 installed at the bottom of the supporting plate 2 13;

[0043] A plurality of protection mechanisms 2 are hinged to the outside of the support plate 11 at equal angles in a circular direction;

[0044] The protection mechanism 2 includes a support tube 1 21 hinged to the outside of the support plate 1 11, the internal thread of the support tube 1 21 is connected to the support tube 2 22, a support tube 26 is movably installed in the interlayer of the inner wall of the support tube 1 21, the upper and lower ends of the outer periphery of the support tube 26 are elastically connected to the inner wall of the support tube 1 21 through a spring 24 respectively, a nylon cloth 23 is installed on the part of the outer periphery of the support tube 26 located between the two springs 24, the end of the nylon cloth 23 movably passes through the support tube 1 21 and is fixed with a first hook 25, and a first metal rod 27 is installed on the outer periphery of the support tube 1 21;

[0045] The portable mountain landscape engineering surveying and mapping device also includes a limiting mechanism 3 fixedly mounted on the bottom of the support plate 11;

[0046] The limiting mechanism 3 is used to fix the position of the correction mechanism 5 and the total station 4 thereon through the supporting mechanism 1 .

[0047] Adopting the above scheme; when the total station 4 is not in use, the protection plate 15 is folded to the top of the total station 4, and the telescopic plate 14 can ensure that the protection plate 15 will not be separated from the support plate 11 during the folding process, and each support tube 21 is folded upward to a vertical state in turn. At the same time, the arc spring telescopic rod 16 is moved so that the vertical support tube 21 is surrounded by the arc spring telescopic rod 16, thereby limiting the position of the support tube 21;

[0048] like Figure 6 The first metal rod 27 and the protective plate 15 shown in the figure are pulled to rise to the top of the first metal rod 27, and then the first hook 25 is pulled to hang on the first metal rod 27 in the adjacent protective mechanism 2, and each protective mechanism 2 is operated in turn, so that every two support tubes 21 can be connected by the nylon cloth 23, and the nylon cloth 23 winds up the spring 24 through the support tube 26. After each nylon cloth 23 covers the total station 4, it can prevent external debris and dust from damaging the total station 4. Furthermore, the support tube 21 is located around the total station 4, so that when the device falls, the force of the total station 4 being hit can be effectively reduced, and the probability of the total station 4 being damaged when working in mountainous areas is avoided;

[0049] When the first hook 25 is detached from the first metal rod 27, the elastic potential stored in the winding spring 24 can rewind the nylon cloth 23 through the support tube 26, thereby returning the protection mechanism 2 to its original working state, and the first hook 25 will not swing at will, further improving the stability of the device and the convenience of use.

[0050] like Figure 5 As shown, the arc spring telescopic rod 16 is circular after being fully extended, and the inner diameter of the arc spring telescopic rod 16 is greater than the outer diameter of the support tube 21.

[0051] By adopting the above scheme, when the support tube 21 is surrounded by the arc spring telescopic rod 16, the arc spring telescopic rod 16 will not excessively restrict the position of the support tube 21, or touch and squeeze the first hook 25, thereby preventing the connection between the first hook 25 and the nylon cloth 23 from being intact and falling off when the device is not used for a long time, further improving the service life of the device.

[0052] like Figure 1 , Figure 2 , Figure 7-10 As shown, the correction mechanism 5 includes a reversing ball 51 installed at the bottom of the support plate 13, the bottom of the reversing ball 51 is connected to a metal ball 53 through a nylon rope 52, the reversing ball 51 is movably installed in the middle of the support plate 11, and the contact surface between the support plate 11 and the reversing ball 51 is circumferentially installed with balls at equal angles.

[0053] The support mechanism 1 also includes a plurality of locking blocks 101 hinged at equal angles in an annular direction inside the support plate 11. The locking block 101 is coated with a rubber layer on one side close to the reversing ball 51. The inner wall of the limit ring 17 is slidably mounted on the outer side of the locking block 101 through a plurality of guide plates 10.

[0054] With the above solution, when the support tube 22 is supported on the ground, the weight of the metal ball 53 can always pull the center of the circle of the reversing ball 51 through the nylon rope 52, and the reversing ball 51 is movably installed on the top of the support plate 11 through the roller, so that the reversing ball 51 can move relatively smoothly, and the metal ball 53 will force the reversing ball 51 to always drive the support plate 2 13 to be in a parallel state, thereby compensating for the inclination angle of the support tube 22 that cannot support the support plate 2 13 to be horizontal;

[0055] When the total station 4 is stable, the spring telescopic rod 102 and the guide column 103 are moved to make the guide column 103 pass over the spring telescopic rod 102, and then the spring telescopic rod 102 is released to block the guide column 103 and return to the initial position. During this period, the guide column 103 drives the wedge block 124 through the limit ring 17 to induce the limit block 123 to rise, and the inner wall of the limit block 123 is close to the telescopic rod 121, so that the telescopic rod 121 cannot support the movement of the support plate 2 13, thereby further improving the stability of the device.

[0056] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the support mechanism 1 also includes a limit ring 17 rotatably connected to the inside of the support plate 11, a guide column 103 movably penetrating the top of the support plate 11 is installed on the top of the limit ring 17, and a spring telescopic rod 102 is installed on the top of the support plate 11;

[0057] The limiter 12 includes a telescopic rod 121, and the support plate 1 11 is hinged to the support plate 2 13 through the telescopic rod 121. The interior of the support plate 11 is elastically connected to the limit block 123 through a spring 122, and a wedge block 124 is installed on the top of the limit ring 17.

[0058] The top of the limiting block 123 is matched with the bottom of the telescopic rod 121 , and the side of the wedge block 124 close to the limiting block 123 is inclined.

[0059] By adopting the above scheme: during the process of rotating the limit ring 17 through the guide column 103, the limit ring 17 will also push the locking block 101 to be close to the inner wall of the commutation ball 51 through the guide plate 10, thereby controlling the commutation ball 51 to be unable to move, and the rubber layer covering the outer inner wall of the locking block 101 can prevent itself from scratching the commutation ball 51, further improving the stability of the device and the subsequent service life.

[0060] like Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, the limiting mechanism 3 includes a protective tube 31 fixed to the bottom of the support plate 11, and a plurality of positioning plates 33 are hingedly connected to the inside of the protective tube 31 at equal angles in an annular direction. A guide rod 32 that is movable and passes through the outside of the protective tube 31 is slidably installed on the top of the positioning plate 33.

[0061] The limiting mechanism 3 also includes a plurality of spring sheets 34 installed at equal angles in a circular direction inside the protective tube 31, each spring sheet 34 respectively abuts against the top of the positioning plate 33, a second metal rod is installed at the hinge point of the support tube 21, and a second hook is installed at the top of the guide rod 32.

[0062] The above scheme is adopted: when the protection mechanism 2 is in a vertical state, the guide rod 32 and the positioning plate 33 are pulled by the second hook. At this time, the positioning plate 33 can be moved and pass over the metal ball 53. After the second hook is hung on the second metal rod on the support tube 21, the positioning plate 33 is now placed obliquely above the metal ball 53. By pulling each second hook in turn, the metal ball 53 can be fixed in a fixed posture. Further, the metal ball 53 can be prevented from swinging through the nylon rope 52 during transportation, thereby increasing the loss of the nylon rope 52.

[0063] like Figure 1 , Figure 2 , Figure 5 Ganghe Figure 6 As shown, the support mechanism 1 also includes a handle 18 fixed to the top of the protection plate 15 , and a spring telescopic plate 19 is provided at the bottom of the protection tube 31 , and the movable end of the spring telescopic plate 19 is inserted between the handle 18 and the protection plate 15 .

[0064] With the above solution, during the operation of the total station 4, the protection plate 15 is located at the bottom of the protection tube 31, and the spring expansion plate 19 is inserted between the handle 18 and the protection plate 15, thereby preventing the protection plate 15 from shaking under the protection tube 31 and interfering with the operation of the total station 4;

[0065] When the protection plate 15 is located on the top of the total station 4 and the protection mechanism 2 is protecting the total station 4 , the operator can carry the device more conveniently through the handle 18 .

[0066] The working principle and use process of the present invention:

[0067] When the total station 4 is not in use, the protection plate 15 is folded to the top of the total station 4, and the telescopic plate 14 can ensure that the protection plate 15 will not be separated from the support plate 11 during the folding process, and each support tube 21 is folded upward to a vertical state in turn. At the same time, the arc spring telescopic rod 16 is moved so that the vertical support tube 21 is surrounded by the arc spring telescopic rod 16, thereby limiting the position of the support tube 21;

[0068] Pull the protection plate 15 up to the top of the first metal rod 27, then pull the first hook 25 to hang on the first metal rod 27 in the adjacent protection mechanism 2, and operate each protection mechanism 2 in turn, so that every two support tubes 21 can be connected by the nylon cloth 23, and the nylon cloth 23 winds up the spring 24 through the support tube 26, and each nylon cloth 23 covers the total station 4, and the support tube 21 is located around the total station 4;

[0069] When the first hook 25 is separated from the first metal rod 27, the elastic potential stored in the winding spring 24 can rewind the nylon cloth 23 through the support tube 26, thereby returning the protection mechanism 2 to the initial working state;

[0070] When the support cylinder 22 is supported on the ground, the weight of the metal ball 53 can always pull the center of the circle of the reversing ball 51 through the nylon rope 52, and the reversing ball 51 is movably installed on the top of the support plate 11 through the roller, so that the reversing ball 51 can move relatively smoothly. The metal ball 53 will force the reversing ball 51 to always drive the support plate 2 13 to be in a parallel state, thereby compensating for the inclination angle of the support cylinder 22 that cannot support the support plate 2 13 to be horizontal;

[0071] When the total station 4 is stable, the spring telescopic rod 102 and the guide column 103 are moved to make the guide column 103 pass over the spring telescopic rod 102, and then the spring telescopic rod 102 is released to block the guide column 103 and return to the initial position. During this period, the guide column 103 drives the wedge block 124 through the limit ring 17 to induce the limit block 123 to rise. The inner wall of the limit block 123 is close to the telescopic rod 121, so that the telescopic rod 121 cannot support the movement of the support plate 2 13. The limit ring 17 will also push the locking block 101 through the guide plate 10 to be close to the inner wall of the reversing ball 51, so that the reversing ball 51 cannot move.

[0072] When the protection mechanism 2 is in a vertical state, the guide rod 32 and the positioning plate 33 are pulled by the second hook. At this time, the positioning plate 33 can be moved and pass over the metal ball 53. After the second hook is hung on the second metal rod on the support tube 21, the positioning plate 33 is now placed obliquely above the metal ball 53. By pulling each second hook in turn, the metal ball 53 can be fixed.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable mountain landscape engineering surveying and mapping device, comprising a total station (4), characterized in that: Also includes; A support mechanism (1), the support mechanism (1) comprising a support plate 1 (11), the top of the support plate 1 (11) being connected to a support plate 2 (13) via a plurality of stoppers (12) arranged at equal angles in a circumferential direction, the outer side of the support plate 1 (11) being hinged to a protection plate (15) via a telescopic plate (14), the outer side of the protection plate (15) being equidistantly mounted with a plurality of arc-shaped spring telescopic rods (16); The total station (4) is installed on the top of the second support plate (13); The portable mountain landscape engineering surveying and mapping device also includes a correction mechanism (5) installed at the bottom of the second support plate (13); A plurality of protection mechanisms (2) circumferentially hinged to the outer side of the support plate (11) at equal angles; The protection mechanism (2) comprises a support tube (21) hinged on the outside of a support plate (11), the support tube (21) is internally threadedly connected to a support tube (22), a support tube (26) is movably installed in the interlayer of the inner wall of the support tube (21), the upper and lower ends of the outer periphery of the support tube (26) are elastically connected to the inner wall of the support tube (21) through a spring (24), a nylon cloth (23) is installed on the outer periphery of the support tube (26) between the two springs (24), the end of the nylon cloth (23) movably passes through the support tube (21) and is fixedly installed with a first hook (25), and a first metal rod (27) is installed on the outer periphery of the support tube (21); The portable mountain landscape engineering surveying and mapping device also includes a limiting mechanism (3) fixedly mounted on the bottom of the supporting plate (11); The limiting mechanism (3) is used to fix the position of the correction mechanism (5) and the total station (4) thereon through the support mechanism (1).

2. The portable mountain landscape engineering surveying and mapping device according to claim 1 is characterized by: The arc-shaped spring telescopic rod (16) is circular when fully extended, and the inner diameter of the arc-shaped spring telescopic rod (16) is greater than the outer diameter of the support tube (21).

3. The portable mountain landscape engineering surveying and mapping device according to claim 1 is characterized in that: The support mechanism (1) further comprises a limiting ring (17) rotatably connected to the inside of the supporting plate (11), a guide column (103) movably penetrating the top of the supporting plate (11) is installed on the top of the limiting ring (17), and a spring telescopic rod (102) is installed on the top of the supporting plate (11); The limiter (12) comprises a telescopic rod (121), the support plate 1 (11) is hinged to the support plate 2 (13) via the telescopic rod (121), the interior of the support plate 1 (11) is elastically connected to the limit block (123) via a spring (122), and a wedge block (124) is installed on the top of the limit ring (17).

4. The portable mountain landscape engineering surveying and mapping device according to claim 3 is characterized by: The top of the limit block (123) is matched with the bottom of the telescopic rod (121), and the side of the wedge block (124) close to the limit block (123) is inclined.

5. The portable mountain landscape engineering surveying and mapping device according to claim 4 is characterized in that: The correction mechanism (5) comprises a reversing ball (51) mounted on the bottom of the second support plate (13); the bottom of the reversing ball (51) is connected to a metal ball (53) via a nylon rope (52); the reversing ball (51) is movably mounted on the middle of the first support plate (11); and balls are mounted at circumferentially equal angles on the contact surface between the first support plate (11) and the reversing ball (51).

6. The portable mountain landscape engineering surveying and mapping device according to claim 5 is characterized by: The support mechanism (1) further comprises a plurality of locking blocks (101) hinged at equal angles in an annular direction inside the support plate (11); a side of the locking block (101) close to the reversing ball (51) is coated with a rubber layer; and an inner wall of the limit ring (17) is slidably mounted on the outer side of the locking block (101) via a plurality of guide plates (10).

7. The portable mountain landscape engineering surveying and mapping device according to claim 5 is characterized by: The limiting mechanism (3) comprises a protective tube (31) fixedly mounted on the bottom of a supporting plate (11), a plurality of positioning plates (33) being hingedly connected to the inside of the protective tube (31) at equal angles in an annular direction, and a guide rod (32) movably penetrating the outside of the protective tube (31) being slidably mounted on the top of the positioning plate (33).

8. The portable mountain landscape engineering surveying and mapping device according to claim 7 is characterized by: The limiting mechanism (3) also includes a plurality of spring sheets (34) installed at equal angles in the annular direction inside the protective tube (31), each of the spring sheets (34) respectively abuts against the top of the positioning plate (33), a second metal rod is installed at the hinge point of the support tube (21), and a second hook is installed at the top of the guide rod (32).

9. The portable mountain landscape engineering surveying and mapping device according to claim 8 is characterized by: The support mechanism (1) further comprises a handle (18) fixedly mounted on the top of the protection plate (15); a spring telescopic plate (19) is arranged at the bottom of the protection tube (31); and a movable end of the spring telescopic plate (19) is inserted between the handle (18) and the protection plate (15).

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