Portable total station for surveying and mapping

Abstract

The invention relates to the technical field related to surveying and mapping, and mainly discloses a portable surveying and mapping total station which comprises a bottom frame, a supporting frame and an instrument body, the bottom frame comprises a fixing sleeve, an assembling opening is formed in the side wall of the fixing sleeve, an adjusting frame is installed in the assembling opening, a supporting leg rod is hinged to one side of the adjusting frame, and an adjusting rod penetrates through the center of the interior of the fixing sleeve; and an adjusting disc is fixedly mounted at the bottom end part of the adjusting rod. The distance between every two adjacent supporting leg rods can be adjusted according to the actual situation, any supporting leg rod can be supported firstly when the ground is uneven, then the positions of the other supporting leg rods can be manually adjusted, stable supporting of the supporting frame and the instrument body is achieved, and the working efficiency is improved. And the adjustment of the adjusting block is realized through mutually meshed bevel gears, so that the subsequent position adjustment of the supporting leg rod is not hindered, and meanwhile, the self-movement of the adjusting block cannot be easily realized.

Description

Technical Field

[0001] The present invention relates to the field of surveying and mapping related technologies, and in particular to a portable total station for surveying and mapping. Background Art

[0002] A total station, that is, a total station type electronic tachometer, means that once observation is made at the measuring station, the necessary observation data such as slant distance, zenith distance (vertical angle), horizontal angle, etc. can be automatically displayed, and the horizontal distance, elevation difference and coordinates of the point can be obtained almost at the same time.

[0003] In order to facilitate quick installation at the surveying site when using the total station, it is generally equipped with a tripod. Traditional tripods are very convenient to disassemble and install during installation, and the height they support can be adjusted when the tripod is unfolded, which ensures the stability and height adjustment of the total station. However, in actual use, this type of tripod generally has certain requirements for the flatness of the ground, and the distance between the three legs of the tripod is often relatively fixed. The tops of the legs are hinged on the same fixed block. Therefore, the distance between the tops is relatively fixed when unfolded, and the bottom fixed point of the extended legs is also limited. This leads to the need to clean the flatness and angle of the ground in advance when actually in contact with the ground, so as to ensure the stability of the subsequent total station in use.

[0004] For example, Chinese patent CN108458699B discloses a total station, which can use telescopic rods and sliding sleeves to achieve support adjustment when in use, but the three sets of telescopic rods and sliding sleeves can only be adjusted relative to the support platform, and the support distance formed between them cannot be adjusted individually after unfolding. When the ground cannot support the three positioning cones at the same time, the effective support effect cannot be achieved.

[0005] There is also Chinese patent CN109781081B that discloses a total station leveling device, which also uses a tripod to achieve support. The difference is that the three legs are adjusted through a more complex control mechanism. Although this is more sophisticated, it also increases the cost to a certain extent. The matching laser transmitter and receiver both add complex controllers to themselves, so they must rely on coordination with each other to be used, which increases the complexity.

[0006] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0007] The object of the present invention is to provide a portable total station for surveying and mapping to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A portable total station for surveying and mapping comprises a base frame, a support frame is assembled on the top of the base frame, an instrument body is mounted on the top of the support frame, the base frame comprises a fixing sleeve, an assembly opening is opened on the side wall of the fixing sleeve, an adjusting frame is mounted in the assembly opening, a leg rod is hinged on one side of the adjusting frame, an adjusting rod is penetrated through the inner center of the fixing sleeve, the support frame is fixedly mounted on the top end of the adjusting rod, an adjusting disk is fixedly mounted on the bottom end of the adjusting rod, the leg rod is connected to the adjusting disk on the side facing the adjusting rod, a top sleeve is mounted on the top of the fixing sleeve, a top ring is fixedly mounted between the top sleeve and the fixing sleeve, a bottom ring is mounted on the bottom of the outer side wall of the fixing sleeve, the adjusting frame is slidably connected to the top ring and the bottom ring, and the bottom of the fixing sleeve The top of the adjusting device is provided with a fixing device, and the fixing device is connected with the fixing device to the fixing surface of the adjusting block to the fixing surface.

[0010] Furthermore, a first stabilizing frame is fixedly installed on the top of the adjusting block, and the top of the first stabilizing frame is slidably connected to the top ring, and a second stabilizing frame is fixedly installed on the bottom of the adjusting block, and the bottom of the end of the second stabilizing frame away from the adjusting block is slidably connected to the bottom ring, the first stabilizing frame includes a first fixed plate, a first extension plate is integrally provided on one side of the first fixed plate, a first sliding rod is fixedly installed on the end of the first extension plate, a pressure ring is provided on the outer side of the bottom of the top sleeve, the top of the top ring is in contact with the pressure ring, a first arc hole is provided on the top ring, and the first sliding rod is slidably arranged in the first arc hole.

[0011] Furthermore, a limit plate is provided on the outside of the first slide rod, and a first limit nut is also fixedly installed on the outside of the top end of the first slide rod. Limit pins are fixedly installed on the limit plate near the four corners, and the bottom ends of the limit pins protrude from the bottom of the limit plate. An annular groove is provided on the top of the top ring, and the annular groove is provided with two lines. The bottom of the limit pin is slidably arranged in the annular groove, a pointer is fixedly installed at the center of the side wall of the limit plate, and scale lines are provided on the outer wall of the top ring.

[0012] Furthermore, the second stabilizing frame includes a second fixed plate, a second extension plate is fixedly mounted on the second fixed plate, a second slide rod is fixedly mounted on one end of the second extension plate away from the second fixed plate, a second arc-shaped hole is opened on the bottom ring, the second slide rod is slidably arranged in the second arc-shaped hole, a clamping plate is provided at the bottom of the second slide rod, and a second limit nut is fixedly mounted on the bottom end of the second slide rod.

[0013] Furthermore, the top end of the leg rod is fixedly installed with a connecting head, and the bottom of the leg rod is hingedly installed with a connecting rod on one side of the adjusting disk, and the adjusting disk includes a lifting plate, the lifting plate is fixedly installed on the bottom end of the adjusting rod, and the top and bottom of the lifting plate are fixedly installed with a clamping plate, the outer side of the clamping plate protrudes from the lifting plate, and a connecting block is provided between the outer sides of the clamping plate, and the top and bottom of the connecting block are fixedly installed with a sliding column, and a sliding groove is provided on the outer side of one end surface of the clamping plate that is opposite to each other, and the sliding column is slidably arranged in the sliding groove, and the end of the connecting block away from the lifting plate is fixedly installed with an articulated sleeve, and the end of the connecting rod away from the leg rod is connected to the adjacent articulated sleeve.

[0014] Furthermore, a connecting sleeve is fixedly installed on the top end of the adjusting rod, the bottom end of the leg rod is hollow inside, an extension rod is inserted inside the bottom end of the leg rod, a leg head is fixedly installed on the bottom end of the extension rod, and a locking sleeve is fixedly installed on the outside of the bottom end of the leg rod.

[0015] Furthermore, the centers of the clamping plate and the lifting plate are both provided with assembly holes, and the bottom end of the adjusting rod is fixedly installed in the assembly hole.

[0016] Furthermore, the support frame includes a vertical pole, the bottom end of the vertical pole is fixedly installed in the connecting sleeve, the top end of the vertical pole is fixedly installed with a cross plate, the top of the cross plate is fixedly installed with a first slide rail, a slide seat is slidably installed on the first slide rail, an assembly set is installed on the top of the slide seat, the top end of the assembly set is installed with a top seat plate, and the instrument body is installed on the top seat plate.

[0017] Furthermore, extension plates are installed at the bottom of both ends of the horizontal plate through hinge chains, and a second slide rail arranged along the length direction of the extension plate is fixedly installed on an end face of the extension plate away from the vertical pole. An adjustment sleeve is provided on the outer sleeve of the vertical pole, and a first hinge seat is fixedly installed on the outer wall of the adjustment sleeve. A second hinge seat is installed in the middle of the extension plate, and the first hinge seat and the second hinge seat arranged close to each other are connected by a support rod.

[0018] Furthermore, a first locking bolt is installed at the bottom of the outer side wall of the sliding seat, and a second locking bolt is also installed on the outside of the adjusting sleeve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The top of the leg rod provided in the present invention is connected with the connecting seat on the adjusting block, and the adjusting block can be slidably adjusted in the assembly opening opened on the side wall of the fixing sleeve, so that the distance between adjacent leg rods can be adjusted according to actual conditions. When the ground is uneven, any leg rod can be supported first, and then the position of the remaining leg rods can be manually adjusted, so as to achieve stable support for the fixing sleeve, and then achieve stable support for the support frame and the instrument body. The adjustment of the adjusting block is achieved by mutually meshing bevel gears. While not hindering the subsequent position adjustment of the leg rod, it can also ensure that the adjusting block will not easily achieve self-movement. At the same time, the first stabilizing frame and the second stabilizing frame that are provided in conjunction with each other also ensure the stability of the adjusting block during subsequent adjustment and movement.

[0021] The connecting rod installed at the bottom of the leg rod provided in the present invention can be automatically adjusted in conjunction with the connecting block. When the top of the leg rod drives the adjusting block to achieve position adjustment, the bottom of the leg rod can also drive the connecting block to slide between the two clamping plates through the connecting rod, thereby achieving stable support of the fixed sleeve by the leg rod. An extension rod is also installed inside the bottom end of the leg rod, which can increase the overall length of the leg rod and achieve adjustment of the height of the instrument body.

[0022] The instrument body provided in the present invention is installed on the top of the slide, and the slide can be slid and adjusted on the first slide rail, so that the instrument body can be adjusted within a certain range after the base frame is installed and fixed. At the same time, extension plates are folded and installed at both ends of the cross plate. The second slide rails assembled on the extension plates can be used as extension rails at both ends of the first slide rails, further increasing the adjustment range of the instrument body. It can also be close to the vertical pole when not in use without taking up space. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 is a schematic structural diagram of a portable total station for surveying and mapping according to an embodiment of the present invention;

[0025] Figure 2 is a schematic structural diagram of a chassis in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0026] Figure 3This is an assembly diagram of a fixed sleeve and a top sleeve in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of a fixing sleeve in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0028] Figure 5 It is a schematic structural diagram of a top cover in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0029] Figure 6 It is a structural schematic diagram of a bottom plate frame in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0030] Figure 7 is a schematic structural diagram of a fixing sleeve in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0031] Figure 8 is a schematic structural diagram of a top ring in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0032] Fig. 9 is a schematic structural diagram of an adjustment frame in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0033] Fig.10 is a structural schematic diagram of an adjustment block in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0034] Fig.11 is a schematic structural diagram of a first stabilizing frame in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0035] Fig.12 is a schematic structural diagram of a second stabilizing frame in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0036] Fig.13 is an assembly diagram of a leg rod and an adjustment plate in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0037] Fig.14 is a schematic structural diagram of a leg rod in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0038] Fig.15 is a schematic structural diagram of an adjustment disk in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0039] Fig.16 is an exploded view of an adjustment disk in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0040] Fig.17This is an assembly diagram of an instrument body and a support frame in a portable total station for surveying and mapping according to an embodiment of the present invention;

[0041] Fig.18 The present invention is a schematic diagram of the structure of a support frame in a portable total station for surveying and mapping according to an embodiment of the present invention.

[0042] Reference numerals:

[0043] 1. Base frame; 2. Support frame; 3. Instrument body; 4. Fixed sleeve; 5. Leg rod; 6. Adjustment plate; 7. Adjustment rod; 8. Base frame; 9. Top sleeve; 10. Top ring; 11. Bottom ring; 111. Second arc hole; 12. Assembly port; 13. Adjustment frame; 14. Stabilizing sleeve; 15. Sliding sleeve; 16. Pressing ring; 17. First bevel gear; 18. Arc groove; 19. Adjustment block; 20. Arc protrusion; 21. Fixed frame; 22. Connecting seat; 23. Second bevel gear; 24. First stabilizing frame; 25. Second stabilizing frame; 26. First fixed plate; 27. First extension plate; 28. First slide rod; 29. ​​Limiting plate; 30. First limiting nut; 31. Limiting nail; 32. Pointer; 33. First arc hole; 34. Annular groove ; 35. scale line; 36. second fixed plate; 37. second extension plate; 38. second slide rod; 39. clamping plate; 40. second limit nut; 41. connecting sleeve; 42. connecting head; 43. extension rod; 44. locking sleeve; 45. leg head; 46. connecting rod; 47. lifting plate; 48. clamping plate; 49. connecting block; 50. slide column; 51. hinge sleeve; 52. slide groove; 53. assembly hole; 54. vertical pole; 55. horizontal plate; 56. first slide rail; 57. slide seat; 58. assembly set; 59. top seat plate; 60. first locking bolt; 61. hinge chain; 62. extension plate; 63. second slide rail; 64. adjustment sleeve; 65. first hinge seat; 66. second hinge seat; 67. support rod; 68. second locking bolt. DETAILED DESCRIPTION

[0044] Below, the invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0045] Example 1: Please refer to Figure 1-Figure 4A portable total station for surveying and mapping according to an embodiment of the present invention comprises a base frame 1, a support frame 2 is mounted on the top of the base frame 1, an instrument body 3 is mounted on the top of the support frame 2, the base frame 1 comprises a fixing sleeve 4, a mounting opening 12 is provided on the side wall of the fixing sleeve 4, an adjusting frame 13 is mounted in the mounting opening 12, a leg rod 5 is hingedly mounted on the side of the adjusting frame 13 away from the inside of the fixing sleeve 4, an adjusting rod 7 is provided through the inner center of the fixing sleeve 4, the support frame 2 is fixedly mounted on the top end of the adjusting rod 7, an adjusting disk 6 is fixedly mounted on the bottom end of the adjusting rod 7, and the leg rod 5 is connected to the adjusting disk 6 on the side facing the adjusting rod 7. The leg rods 5 are arranged in a scattered manner, so as to support the fixing sleeve 4, and the height of the support frame 2 can be driven by the adjusting rod 7 to adjust the height, thereby changing the height of the instrument body 3.

[0046] The top end of the fixed sleeve 4 is coaxially fixed with a top sleeve 9, a top ring 10 is fixed between the top sleeve 9 and the fixed sleeve 4, a bottom ring 11 is also fixed at the bottom of the outer wall of the fixed sleeve 4, an adjustment frame 13 is slidably connected with the top ring 10 and the bottom ring 11, a bottom plate frame 8 is fixed at the bottom end of the fixed sleeve 4, a stabilizing sleeve 14 is fixed at the bottom center of the bottom plate frame 8, and the adjustment rod 7 is set through the stabilizing sleeve 14. The leg rod 5 is hinged with the adjustment frame 13, and the adjustment frame 13 can be slidably set in the assembly port 12, so the distance between two adjacent leg rods 5 can be adjusted. When multiple adjustment frames 13 are respectively installed with multiple leg rods 5, the position of each leg rod 5 can be adjusted according to the ground conditions during actual use, so as to achieve better balance.

[0047] See also Figure 5-Figure 12 The adjusting frame 13 includes an adjusting block 19, and arc-shaped protrusions 20 are provided on the top wall and the bottom wall of the adjusting block 19. Arc-shaped grooves 18 are provided on the inner top wall and the bottom wall of the assembly port 12. The arc-shaped protrusions 20 are slidably arranged in the corresponding arc-shaped grooves 18. A fixing frame 21 is fixedly installed on an end surface of the adjusting block 19 arranged outside the assembly port 12, and a connecting seat 22 is integrally arranged on the fixing frame 21. The top of the leg rod 5 is hinged to the connecting seat 22. A first bevel gear 17 is fixedly installed at the top center of the base frame 8, and a second bevel gear 23 is rotatably installed on an end surface of the adjusting block 19 arranged inside the fixed sleeve 4 through a bearing, and the second bevel gear 23 is meshed with the first bevel gear 17. When the adjusting block 19 is moved in the assembly opening 12 by an external force, the second bevel gear 23 can be driven to mesh and roll on the first bevel gear 17. The meshing force between the bevel gears can generate relatively large friction, so that the adjusting block 19 will only move when pulled by a large external force, thereby ensuring the relative stability of the leg rod 5 after the position is adjusted. A sliding sleeve 15 is fixedly installed inside the top sleeve 9, and the top of the adjusting rod 7 passes through the sliding sleeve 15.

[0048] A first stabilizing frame 24 is fixedly installed on the top of one side wall of the adjusting block 19 facing the fixing frame 21, and the top of one end of the first stabilizing frame 24 away from the adjusting block 19 is slidably connected to the top ring 10. A second stabilizing frame 25 is fixedly installed on the bottom of one side wall of the adjusting block 19 facing the fixing frame 21, and the bottom of one end of the second stabilizing frame 25 away from the adjusting block 19 is slidably connected to the bottom ring 11. By utilizing the sliding arrangement between the first stabilizing frame 24 and the top ring 10, and between the second stabilizing frame 25 and the bottom ring 11, it can be ensured that the adjusting block 19 is more stable when sliding and adjusting in the assembly port 12, thereby ensuring the stable support of the leg rod 5 to the fixing sleeve 4.

[0049] The first stabilizing frame 24 includes a first fixing plate 26, which is fixedly mounted on the adjusting block 19. A first extension plate 27 is integrally provided on the side of the first fixing plate 26 away from the first adjusting block 19. A first slide bar 28 is fixedly mounted on the end of the first extension plate 27. A pressing ring 16 is provided on the outer side of the bottom of the top sleeve 9. The top of the top ring 10 contacts the pressing ring 16. A first arc hole 33 is provided on the top ring 10. The first slide bar 28 is slidably arranged in the first arc hole 33. By using the sliding connection between the first arc hole 33 and the first slide bar 28, the adjusting block 19 can be limited to ensure the stability of the adjusting block 19 when sliding and adjusting in the assembly port 12.

[0050] A limiting plate 29 is provided on the outside of the first slide bar 28, and a first limiting nut 30 is fixedly installed on the outside of the top of the first slide bar 28. The position of the limiting plate 29 is adjusted by the first limiting nut 30 to ensure that the first slide bar 28 will not easily escape from the first arc-shaped hole 33. Limiting pins 31 are fixedly installed near the four corners of the limiting plate 29, and the bottom ends of the limiting pins 31 protrude from the bottom of the limiting plate 29. An annular groove 34 is opened on the top of the top ring 10, and the annular groove 34 is provided with two, and the limiting pins 31 are respectively slidably arranged in the annular grooves 34. By providing the annular groove 34 and the limiting pins 31, the limiting plate 29 can be made more stable when sliding and adjusting following the first slide bar 28.

[0051] A pointer 32 is fixedly mounted on the center of the outer wall of the limiting plate 29 away from the first fixing plate 26, and a scale line 35 is arranged on the outer wall of the top ring 10, and the scale line 35 is arranged close to the first arc-shaped hole 33. The cooperation between the pointer 32 and the scale line 35 can make the adjustment of the leg rod 5 clearer and more visible.

[0052] The second stabilizing frame 25 includes a second fixing plate 36, which is fixedly mounted on the bottom of the outer side of the adjusting block 19, a second extension plate 37 is fixedly mounted on the second fixing plate 36, and a second slide bar 38 is fixedly mounted on one end of the second extension plate 37 away from the second fixing plate 36. A second arc hole 111 is provided on the bottom ring 11, and the second slide bar 38 is slidably arranged in the second arc hole 111. The first slide bar 28 can ensure the stability of the top of the adjusting block 19, and the second slide bar 38 can ensure the stability of the bottom of the adjusting block 19 through the second arc hole 111, so that the adjusting block 19 can be more stably adjusted in the assembly port 12. A clamping plate 39 is provided at the bottom of the second slide bar 38, and a second limiting nut 40 is fixedly mounted on the bottom end of the second slide bar 38. The second limiting nut 40 cooperates with the clamping plate 39 to enable the second slide bar 38 to slide stably in the second arc hole 111.

[0053] Through the above-mentioned scheme of the present invention, the top of the leg rod 5 provided in the present invention is connected to the connecting seat 22 on the adjusting block 19, and the adjusting block 19 can be slidably adjusted in the assembly opening 12 opened on the side wall of the fixing sleeve 4, so the distance between adjacent leg rods 5 can be adjusted according to actual conditions. When the ground is uneven, any leg rod 5 can be supported first, and then the position of the remaining leg rods 5 can be manually adjusted, so as to achieve stable support for the fixing sleeve 4, and then achieve stable support for the support frame 2 and the instrument body 3. The adjustment of the adjusting block 19 is achieved by mutually meshing bevel gears. While not hindering the subsequent position adjustment of the leg rod 5, it can also ensure that the adjusting block 19 will not easily achieve self-movement. At the same time, the first stabilizing frame 24 and the second stabilizing frame 25 provided in conjunction also ensure the stability of the adjusting block 19 during subsequent adjustment and movement.

[0054] Example 2: Please refer to Figure 13-Figure 16For the first embodiment, while the top of the leg rod 5 follows the adjustment block 19 to adjust the position, the bottom of the leg rod 5 and the side connected to the adjustment disk 6 must also be adjusted to the same angle position, so as to achieve stable support of the leg rod 5. The top end of the leg rod 5 is fixedly installed with a connecting head 42, and the connecting head 42 is hinged to the connecting seat 22. The bottom of the leg rod 5 is hingedly installed with a connecting rod 46 on the side facing the adjustment disk 6. The adjustment disk 6 includes a lifting plate 47, which is fixedly installed on the bottom end of the adjusting rod 7. A clamping plate 48 is fixedly installed on the top and bottom of the lifting plate 47. The outer side of the clamping plate 48 protrudes from the lifting plate 47, and a connecting block 49 is provided between the outer sides of the clamping plate 48. A sliding column 50 is fixedly installed on the top and bottom of the connecting block 49. A sliding groove 52 is provided on the outer side of one end surface of the clamping plate 48 that is opposite to each other, and the sliding column 50 is slidably arranged in the sliding groove 52. The end of the connecting block 49 away from the lifting plate 47 is fixedly mounted with an articulated sleeve 51, and the end of the connecting rod 46 away from the leg rod 5 is connected to the adjacent articulated sleeve 51. When the leg rod 5 needs to be adjusted, the leg rod 5 will drive the adjustment block 19 to slide and adjust in the assembly port 12 through the connecting head 42, and at the same time, the bottom of the leg rod 5 will also drive the connecting block 49 to move synchronously through the connecting rod 46, and the connecting block 49 can slide in the slide groove 52 through the sliding column 50, and the connecting rod 46 can achieve stable support for the leg rod 5 through the connecting block 49 and the lifting plate 47, and at the same time, the connecting rod 46 can also move stably with the leg rod 5.

[0055] The top end of the adjusting rod 7 is fixedly installed with a connecting sleeve 41, and the bottom end of the supporting frame 2 is fixedly installed in the connecting sleeve 41. The bottom end of the supporting leg rod 5 is hollow inside, and an extension rod 43 is inserted inside the bottom end of the supporting leg rod 5. The bottom end of the extension rod 43 is fixedly installed with a supporting leg head 45. The bottom end of the supporting leg rod 5 is fixedly installed with a locking sleeve 44. The extension rod 43 can increase the overall length of the supporting leg rod 5, so that the use height of the instrument body 3 can be increased in actual use, and the locking sleeve 44 can lock the extension rod 43 after it is extended.

[0056] The centers of the clamping plate 48 and the lifting plate 47 are both provided with an assembly hole 53 , and the bottom end of the adjusting rod 7 is fixedly installed in the assembly hole 53 .

[0057] Through the above-mentioned scheme of the present invention, the connecting rod 46 installed at the bottom of the leg rod 5 provided in the present invention can be automatically adjusted in conjunction with the connecting block 49. When the top of the leg rod 5 drives the adjusting block 19 to achieve position adjustment, the bottom of the leg rod 5 can also drive the connecting block 49 to slide between the two splints 48 through the connecting rod 46, thereby achieving stable support of the fixed sleeve 4 by the leg rod 5. An extension rod 43 is also installed inside the bottom end of the leg rod 5, which can increase the overall length of the leg rod 5 and achieve adjustment of the use height of the instrument body 3.

[0058] Example 3: Please refer to Figure 17-Figure 18 For the first and second embodiments, in order to enable the support frame 2 to stably support the instrument body 3, in this embodiment, the support frame 2 includes a vertical rod 54, the bottom end of the vertical rod 54 is fixedly installed in the connecting sleeve 41, the top end of the vertical rod 54 is fixedly installed with a horizontal plate 55, the top of the horizontal plate 55 is fixedly installed with a first slide rail 56 arranged along its length direction, a slide seat 57 is slidably installed on the first slide rail 56, a mounting sleeve 58 is installed on the top of the slide seat 57, a top seat plate 59 is installed on the top end of the mounting sleeve 58, the instrument body 3 is installed on the top seat plate 59, and a first locking bolt 60 is installed at the bottom of the outer wall of the slide seat 57. The slide seat 57 can slide and adjust on the first slide rail 56, thereby changing the position of the instrument body 3 on its top, and then locked by the first locking bolt 60, so that the adjustment range of the instrument body 3 can be expanded after the bottom frame 1 is positioned.

[0059] An extension plate 62 is installed at the bottom of both ends of the cross plate 55 through a hinge chain 61, and a second slide rail 63 arranged along the length direction of the extension plate 62 is fixedly installed on the end face of the extension plate 62 away from the vertical rod 54. An adjustment sleeve 64 is sleeved on the outside of the vertical rod 54, and a first hinge seat 65 arranged toward the extension plate 62 is fixedly installed on the outer wall of the adjustment sleeve 64. A second hinge seat 66 is installed in the middle of an end face of the extension plate 62 away from the second slide rail 63. The first hinge seat 65 and the second hinge seat 66 arranged close to each other are connected by a support rod 67, and a second locking bolt 68 is also installed on the outside of the adjustment sleeve 64. By changing the position of the adjustment sleeve 64 on the vertical rod 54, the adjustment sleeve 64 can drive the support rod 67 to move through the first hinge seat 65, and the support rod 67 can drive the extension plate 62 to rotate around the hinge chain 61 through the second hinge seat 66 until it is flush with the horizontal plate 55. At this time, the slide seat 57 can slide from the first slide rail 56 to the second slide rail 63, thereby expanding the adjustment range of the instrument body 3.

[0060] Through the above-mentioned scheme of the present invention, the instrument body 3 provided in the present invention is installed on the top of the slide 57, and the slide 57 can be slid and adjusted on the first slide rail 56, so that the instrument body 3 can be adjusted within a certain range after being installed and fixed on the base frame 1. At the same time, extension plates 62 are folded and installed at both ends of the cross plate 55. The second slide rail 63 assembled on the extension plate 62 can be used as an extension rail at both ends of the first slide rail 56, further increasing the adjustment range of the instrument body 3, and can also be close to the vertical pole 54 when not in use, without taking up space.

[0061] In order to facilitate understanding of the above technical solutions of the present invention, the working principle or operation mode of the present invention in the actual process is described in detail below.

[0062] The top of the leg rod 5 provided in the present invention is connected to the connecting seat 22 on the adjusting block 19, and the adjusting block 19 can be slidably adjusted in the assembly opening 12 opened on the side wall of the fixing sleeve 4, so the distance between adjacent leg rods 5 can be adjusted according to actual conditions. When the ground is uneven, any leg rod 5 can be supported first, and then the position of the remaining leg rods 5 can be manually adjusted, so as to achieve stable support for the fixing sleeve 4, and then achieve stable support for the support frame 2 and the instrument body 3. The adjustment of the adjusting block 19 is achieved by mutually meshing bevel gears. While not hindering the subsequent position adjustment of the leg rod 5, it can also ensure that the adjusting block 19 will not easily achieve self-movement. At the same time, the first stabilizing frame 24 and the second stabilizing frame 25 provided in conjunction also ensure the stability of the adjusting block 19 during subsequent adjustment and movement.

[0063] The connecting rod 46 installed at the bottom of the leg rod 5 provided in the present invention can be automatically adjusted in conjunction with the connecting block 49. When the top of the leg rod 5 drives the adjusting block 19 to achieve position adjustment, the bottom of the leg rod 5 can also drive the connecting block 49 to slide between the two clamping plates 48 through the connecting rod 46, thereby achieving stable support of the fixing sleeve 4 by the leg rod 5. An extension rod 43 is also installed inside the bottom end of the leg rod 5, which can increase the overall length of the leg rod 5 and achieve adjustment of the height of use of the instrument body 3.

[0064] The instrument body 3 provided in the present invention is installed on the top of the slide 57, and the slide 57 can be slid and adjusted on the first slide rail 56, so that the instrument body 3 can be adjusted within a certain range after being installed and fixed on the base frame 1. At the same time, extension plates 62 are folded and installed at both ends of the cross plate 55. The second slide rails 63 assembled on the extension plates 62 can be used as extension rails at both ends of the first slide rails 56, further increasing the adjustment range of the instrument body 3, and can also be close to the vertical pole 54 when not in use, without taking up space.

[0065] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0066] 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.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0068] 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 total station for surveying and mapping, comprising a base frame (1), characterized in that: The top of the base frame (1) is equipped with a support frame (2), and the top of the support frame (2) is equipped with an instrument body (3). The base frame (1) includes a fixing sleeve (4), and a mounting opening (12) is provided on the side wall of the fixing sleeve (4). An adjusting frame (13) is installed in the mounting opening (12). A leg rod (5) is hingedly connected to one side of the adjusting frame (13). An adjusting rod (7) is provided through the inner center of the fixing sleeve (4). The support frame (2) is fixedly installed at the top end of the adjusting rod (7), and an adjusting disk (6) is fixedly installed at the bottom end of the adjusting rod (7). A top sleeve (9) is installed on the top of the fixing sleeve (4), a top ring (10) is fixedly installed between the top sleeve (9) and the fixing sleeve (4), a bottom ring (11) is installed on the bottom of the outer wall of the fixing sleeve (4), the adjustment frame (13) is slidably connected with the top ring (10) and the bottom ring (11), a bottom plate frame (8) is installed on the bottom of the fixing sleeve (4), and a stabilizing sleeve (14) is fixedly installed at the bottom center of the bottom plate frame (8); The adjustment frame (13) comprises an adjustment block (19), the top wall and the bottom wall of the adjustment block (19) are both provided with arc-shaped protrusions (20), the inner top wall and the bottom wall of the assembly opening (12) are both provided with arc-shaped grooves (18), a fixing frame (21) is installed on one end surface of the adjustment block (19) facing the outside of the assembly opening (12), a connecting seat (22) is integrally provided on the fixing frame (21), the top of the leg rod (5) is hinged to the connecting seat (22), a first bevel gear (17) is fixedly installed at the top center of the base frame (8), a second bevel gear (23) is rotatably installed on one end surface of the adjustment block (19) facing the inside of the fixing sleeve (4) through a bearing, the second bevel gear (23) is meshed with the first bevel gear (17), and a sliding sleeve (15) is fixedly installed inside the top sleeve (9).

2. A portable surveying and mapping total station according to claim 1, characterized in that: A first stabilizing frame (24) is fixedly installed on the top of one end surface of the adjusting block (19) facing the outside of the assembly opening (12), and the top of the first stabilizing frame (24) is slidably connected to the top ring (10). A second stabilizing frame (25) is fixedly installed on the bottom of one end surface of the adjusting block (19) facing the outside of the assembly opening (12), and the bottom of one end of the second stabilizing frame (25) away from the adjusting block (19) is slidably connected to the bottom ring (11). The first stabilizing frame (24) includes a first fixing plate (26), and a first extension plate (27) is integrally provided on one side of the first fixing plate (26). A first sliding rod (28) is fixedly installed on the end of the first extension plate (27). A pressing ring (16) is provided on the outer side of the bottom of the top sleeve (9), and the top of the top ring (10) contacts the pressing ring (16). A first arc hole (33) is provided on the top ring (10), and the first sliding rod (28) is slidably arranged in the first arc hole (33).

3. A portable total station for surveying and mapping according to claim 2, characterized in that: A limit plate (29) is provided on the outside of the first slide bar (28), and a first limit nut (30) is also fixedly installed on the outside of the top end of the first slide bar (28). Limit pins (31) are fixedly installed on the limit plate (29) near the four corners, and the bottom end of the limit pin (31) protrudes from the bottom of the limit plate (29). An annular groove (34) is opened on the top of the top ring (10), and the annular groove (34) is provided with two, and the bottom of the limit pin (31) is slidably arranged in the annular groove (34). A pointer (32) is also installed on the limit plate (29), and a scale line (35) is arranged on the outer wall of the top ring (10).

4. A portable surveying and mapping total station according to claim 3, characterized in that: The second stabilizing frame (25) comprises a second fixing plate (36), a second extension plate (37) is fixedly mounted on the second fixing plate (36), a second slide bar (38) is fixedly mounted on one end of the second extension plate (37) away from the second fixing plate (36), a second arc-shaped hole (111) is opened on the bottom ring (11), the second slide bar (38) is slidably arranged in the second arc-shaped hole (111), a clamping plate (39) is arranged at the bottom of the second slide bar (38), a second limiting nut (40) is fixedly mounted on the bottom end of the second slide bar (38), and the number of the assembly openings (12) is equal to and corresponds to the number of the first arc-shaped holes (33) and the second arc-shaped holes (111).

5. A portable surveying and mapping total station according to claim 4, characterized in that: The top end of the leg rod (5) is fixedly mounted with a connector (42); the bottom of the leg rod (5) is hingedly mounted with a connecting rod (46) on one side facing the adjusting plate (6); the adjusting plate (6) comprises a lifting plate (47); the lifting plate (47) is fixedly mounted on the bottom end of the adjusting rod (7); a clamping plate (48) is fixedly mounted on the top and bottom of the lifting plate (47); the diameter of the clamping plate (48) is larger than the diameter of the lifting plate (47); the clamping plate (48) is hingedly mounted on the adjusting plate (6); 8) is provided between the outer sides thereof, a connecting block (49) is fixedly installed with a slide column (50) on the top and bottom of the connecting block (49), a slide groove (52) is provided on the outer side of an end surface opposite to the clamping plate (48), the slide column (50) is slidably arranged in the slide groove (52), an articulated sleeve (51) is fixedly installed on the end of the connecting block (49) away from the lifting plate (47), and an end of the connecting rod (46) away from the leg rod (5) is connected to the adjacent articulated sleeve (51).

6. A portable surveying and mapping total station according to claim 5, characterized in that: A connecting sleeve (41) is fixedly mounted on the top end of the adjusting rod (7); the bottom end of the leg rod (5) is hollow inside, an extension rod (43) is inserted inside the bottom end of the leg rod (5), a leg head (45) is fixedly mounted on the bottom end of the extension rod (43), and a locking sleeve (44) is fixedly mounted on the outside of the bottom end of the leg rod (5).

7. A portable surveying and mapping total station according to claim 6, characterized in that: The centers of the clamping plate (48) and the lifting plate (47) are both provided with an assembly hole (53), and the bottom end of the adjusting rod (7) is fixedly mounted in the assembly hole (53).

8. A portable surveying and mapping total station according to claim 7, characterized in that: The support frame (2) comprises a vertical rod (54), the bottom end of the vertical rod (54) is fixedly installed in the connecting sleeve (41), the top end of the vertical rod (54) is fixedly installed with a horizontal plate (55), the top of the horizontal plate (55) is fixedly installed with a first slide rail (56), a slide seat (57) is slidably installed on the first slide rail (56), an assembly sleeve (58) is installed on the top of the slide seat (57), a top seat plate (59) is installed on the top end of the assembly sleeve (58), and the instrument body (3) is installed on the top seat plate (59).

9. A portable surveying and mapping total station according to claim 8, characterized in that: The bottoms of both ends of the transverse plate (55) are both provided with extension plates (62) through hinge chains (61); a second slide rail (63) arranged along the length direction of the extension plate (62) is fixedly installed on one end surface away from the vertical rod (54); an adjustment sleeve (64) is sleeved on the outside of the vertical rod (54); a first hinge seat (65) is fixedly installed on the outer wall of the adjustment sleeve (64); a second hinge seat (66) is installed in the middle of the extension plate (62); the first hinge seat (65) and the second hinge seat (66) arranged close to each other are connected by a support rod (67).

10. A portable surveying and mapping total station according to claim 9, characterized in that: A first locking bolt (60) is installed at the bottom of the outer side wall of the sliding seat (57), and a second locking bolt (68) is also installed on the outside of the adjustment sleeve (64).

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