Portable multifunctional land surveying and mapping machine and use method thereof

Abstract

The invention belongs to the technical field of surveying and mapping, particularly relates to a portable multifunctional land surveying and mapping machine and a use method thereof, and aims to solve the problems that much inconvenience exists in the existing surveying and mapping and recording process, for example, a surveying and mapping instrument is easy to shake and cannot provide sun shading for workers, the following scheme is provided: the portable multifunctional land surveying and mapping machine comprises a placement table, and a U-shaped frame is fixed at the top of the placement table; a surveying and mapping machine is rotationally arranged in the U-shaped frame; the surveying and mapping machine comprises a U-shaped frame and further comprises a baffle arranged on one side of the U-shaped frame, the side, away from the baffle, of the U-shaped frame is slidably connected with a base, a rotating shaft rotationally penetrates through the interior of the base, the outer wall of the rotating shaft is fixedly sleeved with a placement plate, and the placement plate and the baffle are matched to be used for limiting the surveying and mapping machine. According to the surveying and mapping machine, data recording in the later surveying and mapping process is facilitated, the sunshade function can be achieved, workers are prevented from being exposed to the sun, and in addition, the surveying and mapping machine can be limited and protected when the placement plate and the baffle are stored.

Description

Technical Field

[0001] The present invention relates to the field of surveying and mapping technology, and in particular to a portable multifunctional land surveying machine and a use method thereof. Background Art

[0002] During the construction process, a variety of surveying and mapping equipment is often needed to measure and assist in drawing the required graphics or structural shapes. Among them, the electronic theodolite is a very common and precise instrument used to measure angles in surveying tasks. It can be used to measure angles, engineering layout, and rough distance measurement.

[0003] There are still some deficiencies in the use of surveying and mapping instruments in the prior art:

[0004] 1. When using the surveying instrument, you need to record the measured data in a notebook while measuring. However, you need to hold the notebook and pen at the same time and adjust the surveying instrument during the recording process, which is cumbersome.

[0005] 2. The surveying instrument is prone to shaking when not in use, which may cause damage to the surveying instrument;

[0006] 3. When conducting surveying and mapping, it is often necessary to work in an open area. Especially in the hot summer, workers will be exposed to the sun during the surveying and mapping process and are prone to heat stroke.

[0007] In view of the above problems, the present invention document proposes a portable multifunctional land surveying machine and a method for using the same. Summary of the invention

[0008] The purpose of the present invention is to solve the problems that the existing surveying and recording process is very troublesome, the surveying instrument is prone to shaking and cannot provide sunshade for the staff, and a portable multifunctional land surveying machine and a method of using the same are proposed.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A portable multifunctional land surveying machine comprises a placing table, a U-shaped frame is fixed on the top of the placing table, and a surveying machine is rotated in the U-shaped frame;

[0011] It also includes a baffle plate arranged on one side of the U-shaped frame, the side of the U-shaped frame away from the baffle plate is slidably connected to a base, a rotating shaft is rotatably penetrated in the base, a placement plate is fixedly sleeved on the outer wall of the rotating shaft, and the placement plate cooperates with the baffle plate to limit the position of the surveying and mapping machine;

[0012] The unfolding structure is arranged on the top of the placement table and is used to drive the placement plate to rotate;

[0013] A pressing structure, arranged on the bottom inner wall of the U-shaped frame, is used to fix the baffle;

[0014] The sunshade structure is arranged in the U-shaped frame and is used to unfold the baffle to complete the sunshade.

[0015] In a possible design, the unfolding structure includes a guide rod fixed to the top of the placement table, the top of the placement table is rotatably connected to a screw rod, L-shaped blocks are fixed on both sides of the base, one of the L-shaped blocks is slidably connected to the guide rod, and the other L-shaped block is threadedly connected to the screw rod, and gears are fixed at both ends of the rotating shaft, and two racks are fixed on the top of the placement table, and the racks are meshed with the gears. When the base moves up, the cooperation between the gears and the racks drives the placement plate to rotate clockwise; the screw rod is rotated, and the screw rod drives the base and the placement plate to move up. At the same time, the gear is meshed with the rack, and the gear drives the placement plate to rotate clockwise through the rotating shaft. When the base rises to a certain height, the placement plate is just in a tilted state. Later, when recording data, the notebook can be placed on the placement plate, and the placement plate can limit the notebook.

[0016] In a possible design, the pressing structure includes two base plates fixed to the inner wall of the bottom of the U-shaped frame, the same insertion rod is slidably penetrated in the two base plates, the outer wall fixing sleeve of the insertion rod is provided with a fixing plate, the outer wall sleeve of the insertion rod is provided with a tension spring fixedly connected to the fixing plate, the end of the tension spring away from the fixing plate is fixedly connected to the adjacent base plate, a sun visor is slidably penetrated in the baffle, both the baffle and the sun visor are provided with trapezoidal holes, and the two trapezoidal holes cooperate with each other, the insertion rod cooperates with the trapezoidal holes to apply vertical pressure to the baffle and the sun visor, a horizontal plate is fixed in the base, and a trapezoidal extrusion Block, and the trapezoidal extrusion block cooperates with the insertion rod to drive the insertion rod to be inserted into the trapezoidal hole, an H-shaped placement frame is fixed on the top of the placement table, and the baffle is placed in the H-shaped placement frame, and one end of the insertion rod slides through the H-shaped placement frame; the insertion rod cooperates with the trapezoidal hole to press the baffle and the sun visor, and can fix the baffle in the H-shaped placement frame. At this time, the cooperation between the baffle and the placement plate can limit the surveying and mapping machine to avoid shaking of the surveying and mapping machine during transportation, thereby ensuring the safety of the surveying and mapping machine. Conversely, the placement plate rotates clockwise, the trapezoidal extrusion block releases the extrusion of the insertion rod, the insertion rod is detached from the trapezoidal hole, and the baffle can be taken out of the H-shaped placement frame.

[0017] In a possible design, the sunshade structure includes two slots arranged at the top of the U-shaped frame, support rods are slidably connected in the two slots, threaded rods are rotatably connected to the tops of the two support rods, two threaded holes are provided in the baffle, and the threaded holes cooperate with the threaded rods to complete the fixation of the support rods and the baffle, a first magnet is fixed to the bottom inner wall of the two slots, a second magnet is fixed to the bottom end of the two support rods, and a magnetic attraction is generated between the first magnet and the second magnet to stably adsorb the support rods in the slots, the U-shaped Both sides of the frame are threadedly connected with fastening screws, which are used to position the support rods. Rubber rings are fixed in the two slots, and the rubber rings are used to increase the friction between the slots and the support rods. The baffle and the sun visor are taken out of the H-shaped placement frame, and then the support rod is pulled upward, and the baffle and the threaded rod are fixedly connected through the cooperation of the threaded hole and the threaded rod, and then the sun visor is pulled outward. The sun visor can be positioned by the cooperation of the first arc-shaped rubber block and the second arc-shaped rubber block. Therefore, in the later surveying and mapping, the cooperation between the baffle and the sun visor can provide sunshade.

[0018] In a possible design, a plurality of second arc-shaped rubber blocks are fixed to the inner walls on both sides of the baffle that are away from each other, a first arc-shaped rubber block is fixed to both sides of the sun visor, and the second arc-shaped rubber blocks cooperate with the first arc-shaped rubber blocks to fix the movement of the sun visor.

[0019] In a possible design, a stop bar is fixed to one side of the placement plate, and the stop bar is used to limit the position of the notebook.

[0020] In a possible design, a top block is fixed on the top of the placement table.

[0021] In a possible design, a sliding groove is provided on the side of the placement plate away from the U-shaped frame, and two moving grooves are provided on the side of the placement plate close to the U-shaped frame. Two clamping plates are slidably connected to the side of the placement plate close to the U-shaped frame, and the clamping plates are used to clamp the tablet computer placed on the placement plate. L-shaped rods are slidably connected in the two moving grooves, and the ends of the two L-shaped rods close to each other extend into the sliding groove, and the other ends of the L-shaped rods are fixedly connected to the clamping plates. An extrusion table is slidably connected in the sliding groove, and the extrusion table cooperates with the top block, and the two sides of the extrusion table away from each other The inner wall is provided with two inclined grooves, and the same pin rod is slidably fitted between the two inclined grooves on the same side, and the two pin rods are respectively fixed in adjacent L-shaped rods; when the rotating shaft drives the placement plate to rotate clockwise, the tablet computer can be placed between the two clamping plates, and the extrusion table at the bottom of the placement plate cooperates with the top block, the top block squeezes the extrusion table, the extrusion table moves up and squeezes the spring, and the cooperation of the pin rod and the inclined groove can drive the L-shaped rod and the clamping plate to move toward the middle, which is used to clamp and fix the tablet computer, increase the safety of the tablet computer, and facilitate the later staff to operate the tablet computer while surveying and mapping.

[0022] In a possible design, a connecting plate is fixed in the extrusion table, a nut cover is threadedly connected to the side of the placement plate close to the U-shaped frame, a spring is provided between the nut cover and the connecting plate to apply a resetting elastic force to the extrusion table, and a retaining ring is fixed on the side where the nut cover and the connecting plate are close to each other to limit the spring; when elastic fatigue occurs to the spring, the nut cover can be loosened to release the pressure of the nut cover on the spring, and then the spring can be easily replaced.

[0023] In the present application, a method for using a portable multifunctional land surveying machine comprises the following steps:

[0024] S1. When moving, the rod and the trapezoidal hole cooperate to press the baffle and the sunshade, fix the baffle in the H-shaped placement frame, and cooperate with the placement plate to limit the surveying machine to avoid shaking during transportation and ensure safety;

[0025] S2. When in use, the screw is rotated to drive the base and the placement plate to move up, and the gear and the rack are engaged to make the placement plate rotate clockwise to a tilted state, which is convenient for placing the notebook and limiting the position;

[0026] S3. When the placement plate moves up, the trapezoidal extrusion block releases the extrusion on the insertion rod, and the insertion rod is separated from the trapezoidal hole under the action of the tension spring, releasing the pressure on the baffle and the sunshade, and can be taken out and the height and position can be adjusted for sunshade; tightening the screws can position the support rod to maintain the height of the baffle;

[0027] S4. When the placement plate rotates, the tablet computer can be placed between the two clamping plates. The extrusion table and the top block cooperate to move the clamping plates to the middle to clamp and fix the tablet computer to increase safety. When the spring is fatigued, the nut cover can be loosened to replace the spring.

[0028] Beneficial effects:

[0029] In the present invention, L-shaped blocks are fixed on both sides of the base, one of the L-shaped blocks is slidably connected to the guide rod, and the other L-shaped block is threadedly connected to the screw rod. Gears are fixed on both ends of the rotating shaft, and two racks are fixed on the top of the placement table. The screw rod is rotated, and the screw rod drives the base and the placement plate to move up. At the same time, the gear is meshed with the rack gear, and the gear drives the placement plate to rotate clockwise through the rotating shaft. When the base rises to a certain height, the placement plate is just in an inclined state. When recording data later, the notebook can be placed on the placement plate, which is convenient for users to conduct surveying and data recording.

[0030] In the present invention, the same insertion rod is slidably penetrated in the two base plates, a sun visor is slidably penetrated in the baffle, trapezoidal holes are provided in the baffle and the sun visor, and a trapezoidal extrusion block is fixed in the base through a transverse plate; the insertion rod cooperates with the trapezoidal hole to press the baffle and the sun visor, and the baffle can be fixed in the H-shaped placement frame. At this time, the cooperation between the baffle and the placement plate can limit the surveying and mapping machine, avoid shaking of the surveying and mapping machine during transportation, and ensure the safety of the surveying and mapping machine;

[0031] In the present invention, support rods are slidably connected in the two slots, threaded rods are rotatably connected at the top ends of the two support rods, two threaded holes are provided in the baffle, rubber rings are fixed in the two slots, and the rubber rings are used to increase the friction between the slots and the support rods; the baffle and the sun visor are taken out of the H-shaped placement rack, and then the support rods are pulled upward, and the baffle and the threaded rods are fixedly connected through the cooperation of the threaded holes and the threaded rods, and then the sun visor is pulled outward, and the sun visor can be positioned through the cooperation of the first arc-shaped rubber block and the second arc-shaped rubber block. Therefore, during later surveying and mapping, the cooperation between the baffle and the sun visor can provide sunshade.

[0032] In the present invention, the placement plate and the baffle can be unfolded during the surveying process, which is not only convenient for data recording in the later surveying process, but also can realize the sunshade function to prevent the staff from being exposed to the sun. In addition, when the placement plate and the baffle are stored, the surveying machine can be limited and protected to prevent the surveying machine from shaking during the later movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0034] Figure 2 A schematic diagram of the unfolded three-dimensional structure of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0035] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0036] Figure 4 A schematic diagram of a three-dimensional exploded structure of a base, a placement plate and a gear of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0037] Figure 5 A schematic diagram of a three-dimensional exploded cross-sectional structure of a baffle, a rod and a sunshade of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0038] Figure 6 A schematic diagram of a three-dimensional cross-sectional structure of a U-shaped frame of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0039] Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of a baffle of a portable multifunctional land surveying and mapping machine provided in Example 1 of the present invention;

[0040] Figure 8 A schematic diagram of the three-dimensional structure of a placement plate and a clamping plate of a portable multifunctional land surveying and mapping machine provided in Example 2 of the present invention;

[0041] Fig. 9 A schematic cross-sectional view of a placement plate of a portable multifunctional land surveying and mapping machine provided in Example 2 of the present invention;

[0042] Fig.10 This is a schematic diagram of the three-dimensional exploded structure of an extrusion table, an L-shaped rod and a connecting plate of a portable multifunctional land surveying and mapping machine provided in Example 2 of the present invention.

[0043] In the figure: 1, placing table; 2, U-shaped frame; 3, surveying machine; 4, baffle; 5, placing plate; 6, base; 7, rotating shaft; 8, baffle bar; 9, clamping plate; 10, L-shaped block; 11, guide rod; 12, screw rod; 13, gear; 14, rack; 15, H-shaped placing frame; 16, sun visor; 17, trapezoidal hole; 18, base plate; 19, plug rod; 20, fixing plate; 21, tension spring; 22, horizontal plate; 23, trapezoidal extrusion block; 24 , threaded hole; 25, slot; 26, support rod; 27, rubber ring; 28, first magnet; 29, second magnet; 30, fastening screw; 31, threaded rod; 32, first arc-shaped rubber block; 33, second arc-shaped rubber block; 34, top block; 35, sliding groove; 36, moving groove; 37, L-shaped rod; 38, extrusion table; 39, inclined groove; 40, pin rod; 41, connecting plate; 42, nut cover; 43, retaining ring; 44, spring. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Example 1

[0046] Reference Figure 1-Figure 5 A surveying machine is used in the field of surveying instruments. The overall structure of the surveying machine includes a placement table 1, and a U-shaped frame 2 is fixed on the top of the placement table 1. A surveying machine 3 is rotatably installed in the U-shaped frame 2. A baffle 4 is provided on one side of the U-shaped frame 2, and a base 6 is slidably installed on the side of the U-shaped frame 2 away from the baffle 4. A rotating shaft 7 is rotatably installed in the base 6, and a placement plate 5 is fixedly installed on the outer wall of the rotating shaft 7. The placement plate 5 cooperates with the baffle 4 to limit the position of the surveying machine 3.

[0047] Reference Figure 4 The unfolding structure includes a guide rod 11 fixed on the top of the placement platform 1, and a screw rod 12 is also rotatably installed on the top of the placement platform 1. L-shaped blocks 10 are fixed on both sides of the base 6, one of the L-shaped blocks 10 is slidably connected to the guide rod 11, and the other L-shaped block 10 is threadedly connected to the screw rod 12. Gears 13 are fixed on both ends of the rotating shaft 7, and two racks 14 are also fixed on the top of the placement platform 1. The rack 14 is meshed with the gear 13, so that when the base 6 moves up, the placement plate 5 can be driven to rotate clockwise through the cooperation of the gear 13 and the rack 14.

[0048] Reference Figure 3 and Figure 5 The pressing structure includes two base plates 18 fixed on the inner wall of the bottom of the U-shaped frame 2, and the same plug rod 19 is slidably installed in the two base plates 18. A fixing plate 20 is fixedly installed on the outer wall of the plug rod 19, and a tension spring 21 fixedly connected to the fixing plate 20 is also sleeved on the outer wall of the plug rod 19. The other end of the tension spring 21 is fixedly connected to the adjacent base plate 18. A sunshade 16 is slidably installed in the baffle 4, and a trapezoidal hole 17 is provided in both the baffle 4 and the sunshade 16, and the two trapezoidal holes 17 match each other. The plug rod 19 can match with the trapezoidal hole 17 to apply vertical pressure to the baffle 4 and the sunshade 16. A horizontal plate 22 is fixed in the base 6, and a trapezoidal extrusion block 23 is fixed on the top of the horizontal plate 22. The trapezoidal extrusion block 23 can match with the plug rod 19 to drive the plug rod 19 to be inserted into the trapezoidal hole 17. An H-shaped placement frame 15 is also fixed on the top of the placement table 1, and the baffle 4 can be placed in the H-shaped placement frame 15. One end of the insertion rod 19 slides through the H-shaped placement frame 15 .

[0049] Reference Figure 5-Figure 7The sunshade structure includes two slots 25 provided at the top of the U-shaped frame 2, and support rods 26 are slidably installed in the two slots 25. Threaded rods 31 are rotatably installed at the tops of the two support rods 26, and two threaded holes 24 are provided in the baffle 4. The threaded holes 24 cooperate with the threaded rods 31 to complete the fixation of the support rods 26 and the baffle 4. The bottom inner walls of the two slots 25 are fixed with first magnets 28, and the bottom ends of the two support rods 26 are fixed with second magnets 29. Magnetic attraction can be generated between the first magnet 28 and the second magnet 29, which is used to stably adsorb the support rods 26 in the slots 25. Fastening screws 30 are also threadedly installed on both sides of the U-shaped frame 2, and the fastening screws 30 can be used to position the support rods 26. Rubber rings 27 are also fixed in the two slots 25, and the rubber rings 27 can increase the friction between the slots 25 and the support rods 26.

[0050] Through the above embodiments, the portable multifunctional land surveying machine can have multiple functions such as unfolding, pressing and sunshading. The unfolding structure can conveniently drive the placement plate 5 to rotate, thereby adjusting the angle of the surveying machine 3. The pressing structure can stably fix the baffle 4 to ensure the stability of the surveying machine 3 during operation. The sunshade structure can provide a sunshade function for users when used outdoors, protecting the surveying machine 3 and the staff from direct sunlight.

[0051] Reference Figure 7 On the inner walls of the two sides of the baffle 4 that are away from each other, we fixed a plurality of second arc-shaped rubber blocks 33. At the same time, on both sides of the sun visor 16, we also fixed the first arc-shaped rubber blocks 32. The second arc-shaped rubber blocks 33 and the first arc-shaped rubber blocks 32 are designed to cooperate with each other, so that when the sun visor 16 moves, it can be fixed by the cooperation of the two groups of rubber blocks, ensuring that the sun visor 16 remains stable at the required position.

[0052] Reference Figure 3 , Figure 4 and Figure 8 In order to further enhance the functionality of the placement board 5, we fix a baffle 8 on one side thereof. The design of the baffle 8 can effectively prevent the items placed on the placement board 5 from sliding off, thereby improving the safety of use.

[0053] Reference Figure 1 and Figure 3 , on the top of the placement table 1, we fixed a top block 34. The design of the top block 34 is to cooperate with the subsequent structure to achieve a specific function.

[0054] Example 2

[0055] refer to Figure 8-Figure 10, improved on the basis of Example 1: on the side of the placement plate 5 away from the U-shaped frame 2, we have opened a sliding groove 35. On the side of the placement plate 5 close to the U-shaped frame 2, we have opened two movable grooves 36 and slidably connected two clamping plates 9. The design of the clamping plate 9 is to clamp the tablet computer placed on the placement plate 5 so that it remains stable during use. In order to achieve the movement and fixation of the clamping plate 9, we have slidably connected L-shaped rods 37 in both movable grooves 36. One end of the L-shaped rod 37 extends into the sliding groove 35, and the other end is fixedly connected to the clamping plate 9. In the sliding groove 35, we also slidably connect an extrusion table 38, which cooperates with the top block 34 mentioned above. On the inner walls on both sides of the extrusion table 38 that are away from each other, we have opened two oblique grooves 39. The same pin rod 40 is slidably matched between the two oblique grooves 39 on the same side, and the two pin rods 40 are respectively fixed in the adjacent L-shaped rods 37. Such a design enables the extrusion platform 38 to be driven to move the L-shaped rod 37 and the clamping plate 9 through the cooperation of the inclined groove 39 and the pin rod 40 when an external force is applied, thereby clamping and releasing the tablet computer.

[0056] refer to Figure 8-Figure 10 In order to realize the reset function of the extrusion platform 38, we fixed a connecting plate 41 inside the extrusion platform 38. On the side of the placement plate 5 close to the U-shaped frame 2, we threadedly connected a nut cover 42. Between the nut cover 42 and the connecting plate 41, we set a spring 44 to apply a resetting elastic force to the extrusion platform 38. In order to ensure the stability of the spring 44 during the working process, we fixed a retaining ring 43 on the side where the nut cover 42 and the connecting plate 41 are close to each other, which is used to limit the spring 44.

[0057] Through the above implementation, we realize multiple functions of the portable multifunctional land surveying machine. Among them, the cooperation of the second arc-shaped rubber block 33 and the first arc-shaped rubber block 32 can effectively fix the position of the sun visor 16; the design of the baffle 8 can prevent objects from sliding; the cooperation of the top block 34, the sliding groove 35, the moving groove 36, the clamping plate 9, the L-shaped rod 37, the extrusion platform 38, the inclined groove 39 and the pin rod 40 can realize the clamping and releasing functions of the tablet computer; and the design of the connecting plate 41, the nut cover 42, the spring 44 and the baffle ring 43 realizes the reset function of the extrusion platform 38. These designs make the portable multifunctional land surveying machine more convenient and efficient in actual use.

[0058] A method for using a portable multifunctional land surveying and mapping machine comprises the following steps:

[0059] S1. When moving, the insertion rod 19 cooperates with the trapezoidal hole 17 to press the baffle 4 and the sunshade 16, so that the baffle 4 can be fixed in the H-shaped placement frame 15. At this time, the cooperation between the baffle 4 and the placement plate 5 can limit the position of the surveying and mapping machine 3, so as to avoid the shaking of the surveying and mapping machine 3 during the transportation process and ensure the safety of the surveying and mapping machine 3;

[0060] S2. When in use, the screw 12 is rotated, and the screw 12 drives the base 6 and the placement plate 5 to move upward. At the same time, the gear 13 is meshed with the rack 14, and the gear 13 drives the placement plate 5 to rotate clockwise through the rotating shaft 7. When the base 6 rises to a certain height, the placement plate 5 is just in a tilted state. Later, when recording data, the notebook can be placed on the placement plate 5, and the placement plate 5 can limit the notebook;

[0061] S3. When the placement plate 5 moves up, the trapezoidal extrusion block 23 moves up synchronously, and the trapezoidal extrusion block 23 releases the extrusion on the insertion rod 19. The insertion rod 19 is disengaged from the trapezoidal hole 17 under the tension of the tension spring 21, and the suppression on the baffle 4 and the sun visor 16 is released, so that the baffle 4 and the sun visor 16 can be taken out from the H-shaped placement frame 15, and then the support rod 26 is pulled upward, and the baffle 4 and the threaded rod 31 are fixedly connected by the cooperation of the threaded hole 24 and the threaded rod 31, and then the sun visor 16 is pulled outward, and the sun visor 16 can be positioned by the cooperation of the first arc rubber block 32 and the second arc rubber block 33. Therefore, in the later surveying and mapping, the cooperation between the baffle 4 and the sun visor 16 can be used for sunshade. In addition, the support rod 26 can be positioned by tightening the fastening screws 30 to ensure that the height of the baffle 4 remains unchanged;

[0062] S4. When the rotating shaft 7 drives the placement plate 5 to rotate clockwise, the tablet computer can be placed between the two clamping plates 9. The extrusion platform 38 at the bottom of the placement plate 5 cooperates with the top block 34. The top block 34 squeezes the extrusion platform 38. The extrusion platform 38 moves up and squeezes the spring 44. The cooperation between the pin rod 40 and the inclined groove 39 can drive the L-shaped rod 37 and the clamping plate 9 to move toward the middle, which is used to clamp and fix the tablet computer, increase the safety of the tablet computer, and facilitate the later staff to operate the tablet computer while surveying and mapping. When the spring 44 shows elastic fatigue, the nut cover 42 is loosened to release the pressure on the spring 44, and then the spring 44 can be easily replaced.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable multifunctional land surveying machine, characterized in that: It comprises a placement table (1), a U-shaped frame (2) is fixed on the top of the placement table (1), and a surveying machine (3) is rotated inside the U-shaped frame (2); It also includes a baffle (4) arranged on one side of the U-shaped frame (2); a side of the U-shaped frame (2) away from the baffle (4) is slidably connected to a base (6); a rotating shaft (7) is rotatably penetrated in the base (6); a placement plate (5) is fixedly sleeved on the outer wall of the rotating shaft (7); the placement plate (5) cooperates with the baffle (4) to limit the position of the surveying and mapping machine (3); An unfolding structure, arranged on the top of the placement platform (1), and used to drive the placement plate (5) to rotate; A pressing structure, arranged on the bottom inner wall of the U-shaped frame (2), and used for fixing the baffle (4); The sunshade structure is arranged in the U-shaped frame (2) and is used to unfold the baffle (4) to achieve sunshade.

2. A portable multifunctional land surveying machine according to claim 1, characterized in that: The unfolding structure comprises a guide rod (11) fixed on the top of the placement platform (1), the top of the placement platform (1) is rotatably connected to a screw rod (12), L-shaped blocks (10) are fixed on both sides of the base (6), one of the L-shaped blocks (10) is slidably connected to the guide rod (11), and the other L-shaped block (10) is threadedly connected to the screw rod (12), gears (13) are fixed on both ends of the rotating shaft (7), two racks (14) are fixed on the top of the placement platform (1), and the racks (14) are meshed with the gears (13), and when the base (6) moves upward, the cooperation of the gears (13) and the racks (14) drives the placement plate (5) to rotate clockwise.

3. A portable multifunctional land surveying machine according to claim 2, characterized in that: The pressing structure comprises two base plates (18) fixed to the inner wall of the bottom of the U-shaped frame (2), the two base plates (18) are slidably penetrated by a same plug rod (19), the outer wall of the plug rod (19) is sleeved with a fixed plate (20), the outer wall of the plug rod (19) is sleeved with a tension spring (21) fixedly connected to the fixed plate (20), the end of the tension spring (21) away from the fixed plate (20) is fixedly connected to the adjacent base plate (18), the baffle (4) is slidably penetrated by a sunshade (16), the baffle (4) and the sunshade (16) are both provided with a trapezoidal hole (17), and the two trapezoidal holes (17) are provided with a plurality of holes. The insert rod (19) cooperates with the trapezoidal hole (17) to apply vertical pressure to the baffle (4) and the sun visor (16); a horizontal plate (22) is fixed inside the base (6); a trapezoidal extrusion block (23) is fixed on the top of the horizontal plate (22); and the trapezoidal extrusion block (23) cooperates with the insert rod (19) to drive the insert rod (19) to be inserted into the trapezoidal hole (17); an H-shaped placement frame (15) is fixed on the top of the placement table (1), and the baffle (4) is placed in the H-shaped placement frame (15), and one end of the insert rod (19) slides through the H-shaped placement frame (15).

4. A portable multifunctional land surveying machine according to claim 3, characterized in that: The sunshade structure comprises two slots (25) arranged at the top of the U-shaped frame (2), the two slots (25) are slidably connected with support rods (26), the tops of the two support rods (26) are rotatably connected with threaded rods (31), the baffle (4) is provided with two threaded holes (24), and the threaded holes (24) and the threaded rods (31) are matched to complete the fixation of the support rods (26) and the baffle (4), the bottom inner walls of the two slots (25) are fixed with first magnets (28), and the two The bottom end of each support rod (26) is fixed with a second magnet (29), and a magnetic attraction force is generated between the first magnet (28) and the second magnet (29) for stably adsorbing the support rod (26) in the slot (25). Both sides of the U-shaped frame (2) are threadedly connected with fastening screws (30), and the fastening screws (30) are used to position the support rod (26). Rubber rings (27) are fixed in the two slots (25), and the rubber rings (27) are used to increase the friction between the slot (25) and the support rod (26).

5. A portable multifunctional land surveying machine according to claim 4, characterized in that: A plurality of second arc-shaped rubber blocks (33) are fixed to the inner walls of the baffle (4) on both sides away from each other, and a first arc-shaped rubber block (32) is fixed to both sides of the sun visor (16), and the second arc-shaped rubber blocks (33) cooperate with the first arc-shaped rubber blocks (32) to fix the movement of the sun visor (16).

6. A portable multifunctional land surveying machine according to claim 5, characterized in that: A blocking bar (8) is fixed on one side of the placement plate (5).

7. A portable multifunctional land surveying machine according to claim 6, characterized in that: A top block (34) is fixed on the top of the placement platform (1).

8. The portable multifunctional land surveying machine according to claim 7, characterized in that: The side of the placement plate (5) away from the U-shaped frame (2) is provided with a sliding groove (35), and the side of the placement plate (5) close to the U-shaped frame (2) is provided with two moving grooves (36). The side of the placement plate (5) close to the U-shaped frame (2) is slidably connected to two clamping plates (9), and the clamping plates (9) are used to clamp the tablet computer placed on the placement plate (5). L-shaped rods (37) are slidably connected in the two moving grooves (36), and the ends of the two L-shaped rods (37) close to each other are extended. The sliding groove (35) extends into the sliding groove, and the other end of the L-shaped rod (37) is fixedly connected to the clamping plate (9). The sliding groove (35) is slidably connected with an extrusion platform (38), and the extrusion platform (38) cooperates with the top block (34). The inner walls of the extrusion platform (38) on both sides away from each other are provided with two inclined grooves (39). The same pin rod (40) is slidably matched between the two inclined grooves (39) on the same side, and the two pin rods (40) are respectively fixed in adjacent L-shaped rods (37).

9. The portable multifunctional land surveying machine according to claim 8, characterized in that: A connecting plate (41) is fixed inside the extrusion platform (38); a nut cover (42) is threadedly connected to a side of the placement plate (5) close to the U-shaped frame (2); a spring (44) is provided between the nut cover (42) and the connecting plate (41) for applying a resetting elastic force to the extrusion platform (38); and a retaining ring (43) is fixed to a side where the nut cover (42) and the connecting plate (41) are close to each other for limiting the position of the spring (44).

10. The method for using a portable multifunctional land surveying machine according to claim 9, characterized in that: The following steps are involved: S1, when moving, the insertion rod (19) and the trapezoidal hole (17) cooperate to press the baffle (4) and the sunshade (16), fix the baffle (4) in the H-shaped placement frame (15), and cooperate with the placement plate (5) to limit the surveying machine (3); S2. When in use, the screw rod (12) is rotated to drive the base (6) and the placement plate (5) to move upward, and the gear (13) and the rack (14) are meshed to make the placement plate (5) rotate clockwise to a tilted state, so as to facilitate the placement of the notebook and limit the position; S3, when the placement plate (5) moves upward, the trapezoidal extrusion block (23) releases the extrusion on the insertion rod (19), and the insertion rod (19) is separated from the trapezoidal hole (17) under the action of the tension spring (21), thereby releasing the pressure on the baffle (4) and the sunshade (16), and the baffle (4) and the sunshade (16) can be taken out and the height and position can be adjusted for sunshade; the tightening screw (30) can position the support rod (26) to maintain the height of the baffle (4); S4. When the placement plate (5) rotates, the tablet computer can be placed between the two clamping plates (9). The extrusion platform (38) cooperates with the top block (34) to move the clamping plates (9) toward the middle to clamp and fix the tablet computer. When the spring (44) is fatigued, the nut cover (42) can be loosened to replace the spring (44).

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