A foldable rectangular portable surveying and mapping tripod

Abstract

The present invention discloses a foldable rectangular portable surveying and mapping tripod, which belongs to the field of surveying and mapping tripods, and comprises a connecting seat, wherein the inner side of the connecting seat is fixedly connected with movable rods, wherein the number of the movable rods is two groups and they are symmetrically distributed, and a folding assembly is arranged on the outer side of the movable rods, wherein the folding assembly comprises a bracket 1 and a bracket 2 which are respectively rotatably connected with the two groups of movable rods, wherein the upper side of the outer surface of the bracket 1 is provided with a storage groove 2, and the upper end outer surface of the bracket 2 is located inside the storage groove 2 and is fixedly connected with a pin shaft 2. By arranging a traction assembly, the tripod is flipped from a triangle to a rectangle, and the volume of the tripod after storage can be reduced, so as to facilitate better carrying and storage by users, thereby effectively improving the convenience and flexibility of the tripod during use, and also reducing the probability of accidental rolling during transportation of the tripod, thereby effectively improving the safety of the tripod during carrying and transportation.

Description

Technical Field

[0001] The invention relates to the field of surveying and mapping tripods, and more particularly to a foldable rectangular parallelepiped portable surveying and mapping tripod. Background Art

[0002] A surveying tripod is a device specially used to support and stabilize measuring instruments. It plays a vital role in surveying and mapping work. A surveying tripod is an indispensable tool in surveying and mapping work. Its stability and adjustability are crucial to ensure the accuracy of measurement data. For outdoor surveying and mapping work, a lightweight and easy-to-carry tripod can improve work efficiency.

[0003] When performing surveying and mapping operations outdoors, the tripod needs to be stored for the convenience of carrying. For example, Chinese patent publication number CN220911026U discloses a portable surveying and mapping tripod. The supporting legs are dispersedly arranged so that the tripod can be folded and stored when carried. The convex strips are stuck in the grooves to fold the folded supporting legs together. The convenience of the tripod during use can be improved by the clamping method and the spring reset method.

[0004] After the use of the existing surveying and mapping tripod, the tripod is usually stored to reduce the volume of the tripod. The existing tripod is usually stored by gathering the three sets of supporting legs together and tying them together with a binding belt. This storage method will cause the stored tripod to have a shape close to a cylinder. During the transportation of the tripod on a vehicle, the tripod is prone to accidental rolling, which may cause damage to the tripod. At the same time, the stability of multiple tripods is very poor when they are stacked. Therefore, there are certain usage defects during the actual storage and transportation process. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a foldable rectangular portable surveying and mapping tripod, which can be turned from a triangle to a rectangle by setting a traction component, which can effectively reduce the volume of the tripod after storage, so as to facilitate users to carry and store it better, thereby effectively improving the convenience and flexibility of the tripod during use, and at the same time reducing the probability of accidental rolling during transportation of the tripod, thereby effectively improving the safety of the tripod during carrying and transportation.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A foldable rectangular portable surveying and mapping tripod, comprising a connecting seat, wherein the inner side of the connecting seat is fixedly connected with movable rods, wherein the movable rods are in two groups and are symmetrically distributed, and a folding assembly is arranged on the outer side of the movable rods;

[0008] The folding assembly includes a bracket 1 and a bracket 2 which are rotatably connected to two groups of movable rods respectively, a receiving groove 2 is provided on the upper side of the outer surface of the bracket 1, an upper end outer surface of the bracket 1 is located inside the receiving groove 2 and is fixedly connected with a pin 2, a lower end outer surface of the bracket 2 is provided with a receiving groove 1, an inner surface of the receiving groove 1 is fixedly connected with a pin 1, an outer surface of the pin 1 is rotatably connected to the movable frame 2, an outer surface of the pin 2 is rotatably connected to the movable frame 1, an installation groove is provided on the outer surfaces of the front ends of the movable frame 1 and the movable frame 2, and a hinge is hinged between the movable frame 1 and the movable frame 2 through the installation groove.

[0009] Furthermore, the connecting seat has a U-shaped structure, the lower side of the bracket is rotatably connected to leg one, the lower side of the bracket two is rotatably connected to leg three, the lower side of the movable frame two is rotatably connected to leg two, the leg one, leg two and leg three are distributed in a triangular shape, and the movable frame one and the movable frame two correspond to the positions of the storage slot two and the storage slot one, respectively.

[0010] Furthermore, a traction assembly is provided on the inner side of the bracket, and the traction assembly includes a slot embedded in the inner side of the bracket, a fixing rod is fixedly connected to the inner surface of the slot, a mounting plate is rotatably connected to the outer surface of the fixing rod, and a sliding groove is provided on the outer surface of the mounting plate.

[0011] Furthermore, the movable frame 1 is a U-shaped structure, and a core shaft 1 is fixedly connected to the lower side of the outer surface of the movable frame 1. A pull rod 1 is rotatably connected to the outer surface of the core shaft 1. An end of the pull rod 1 away from the core shaft 1 is rotatably connected to the core shaft 2, and the outer surface of the core shaft 2 is rotatably connected to the pull rod 2.

[0012] Furthermore, a movable groove is provided on the outer surface of the mounting plate near the movable frame one, and the end of the pull rod two away from the core shaft two passes through the movable groove and is slidably connected to the inner surface of the movable groove. A mounting bolt is movably connected to the inner side of the sliding groove, and the mounting bolt is used to connect and install the measuring equipment.

[0013] Furthermore, a positioning assembly is provided on the outer surface of bracket one and bracket two, and the positioning assembly includes a positioning plate fixedly connected to the outer surface of the left end of bracket two, a positioning hole is provided on the outer surface of the positioning plate, and a placement groove is provided on the outer surface of the right end of bracket one, and the placement groove is connected to the inside of the slot.

[0014] Furthermore, a positioning groove is provided on the outer surface of the right end of the bracket, and the positioning groove corresponds to the position of the positioning plate. The positioning groove is located at the lower side of the movable groove. A through hole is embedded on the inner side of the bracket, and the through hole penetrates to the lower side of the positioning groove. A positioning rod is slidably connected to the inside of the through hole. The positioning rod has a T-shaped structure, and the upper end of the positioning rod is arc-shaped. A spring is fixedly connected to the upper side of the inner surface of the placement groove, and the upper end of the spring is fixedly connected to the positioning rod.

[0015] Furthermore, telescopic components are provided on the inner sides of the legs one, two and three, and the telescopic components include guide grooves embedded in the inner sides of the legs one, two and three, a guide block is slidably connected to the inner surface of the guide groove, a movable leg is fixedly connected to the outer surface of the guide block, and a wedge plate is fixedly connected to the lower end of the movable leg.

[0016] Furthermore, the lower ends of the three groups of movable legs respectively penetrate the lower sides of leg one, leg two, and leg three and are slidably connected to leg one, leg two, and leg three. A cavity is embedded on the inner side of the movable leg, and a fixed shaft is rotatably connected to the inner surface of the cavity, and an extrusion wheel is fixedly connected to the outer surface of the fixed shaft.

[0017] Furthermore, the extrusion wheel is elliptical in shape, the inner side of the movable leg is slidably connected to a limiting rod, the outer surface of the extrusion wheel is in rotational contact with the limiting rod, the limiting rod extends into the guide groove away from the extrusion wheel, the fixed shaft extends to the outer side of the movable leg and is rotationally connected to the movable leg, and a knob is fixedly connected to the end of the fixed shaft away from the extrusion wheel.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution, by providing a traction assembly, flips the tripod from a triangle to a rectangle, which can effectively reduce the volume of the tripod after storage, so that the user can better carry and store it, thereby effectively improving the convenience and flexibility of the tripod during use, and also reducing the probability of accidental rolling during transportation of the tripod, thereby effectively improving the safety of the tripod during transportation;

[0020] (2) This solution provides a traction assembly, which can drive the mounting plate to move when the tripod is unfolded, and can also limit the position of the mounting plate by traction, so that the position of the mounting plate can be kept stable, thereby effectively improving the installation and positioning accuracy of the surveying and mapping equipment on the tripod;

[0021] (3) This solution provides a storage assembly, and locks and fixes bracket one and bracket two through a positioning rod and a positioning plate, so that bracket one and bracket two can remain stationary after the tripod is stored, thereby reducing the probability of accidental deployment of the tripod, and further improving the stability and reliability of the tripod storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a top view of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the lower side of the overall structure of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the guide groove and the guide block of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the traction assembly of the present invention;

[0027] Figure 6 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0028] Figure 7 For the present invention Figure 5 The enlarged schematic diagram of point B in the middle;

[0029] Figure 8 For the present invention Figure 5 The enlarged schematic diagram at C in the middle;

[0030] Fig. 9 For the present invention Figure 5 Enlarged schematic diagram at point D in the middle.

[0031] Description of the numbers in the figure:

[0032] 11. Bracket 1; 12. Bracket 2; 13. Movable frame 1; 14. Movable frame 2; 15. Connecting seat; 16. Movable rod; 17. Pin 1; 18. Storage slot 1; 19. Storage slot 2; 20. Pin 2; 21. Leg 1; 22. Leg 2; 23. Leg 3; 24. Movable leg; 25. Guide slot; 26. Knob; 27. Cavity; 28. Guide block; 29. ​​Extrusion wheel; 30. Fixed shaft; 31. Limit rod; 32. Mounting groove; 33. Hinge; 34. Mandrel 1; 35. Pull rod 1; 36. Mandrel 2; 37. Pull rod 2; 38. Moving groove; 39. Mounting plate; 40. Fixing rod; 41. Notch; 42. Slide groove; 43. Mounting bolt; 44. Positioning plate; 45. Positioning hole; 46. Positioning rod; 47. Spring; 48. Positioning groove; 49. Placement groove; 50. Wedge plate; 51. Through hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 9A foldable rectangular portable surveying tripod comprises a connecting seat 15, wherein the inner side of the connecting seat 15 is fixedly connected with a movable rod 16, wherein the movable rod 16 is in two groups and is symmetrically distributed, and a folding assembly is arranged on the outer side of the movable rod 16;

[0035] The folding assembly includes a bracket 11 and a bracket 12 which are rotatably connected to two groups of movable rods 16 respectively. The outer surface of the bracket 11 is provided with a storage groove 19. The outer surface of the upper end of the bracket 11 is located inside the storage groove 19 and is fixedly connected with a pin 20. The outer surface of the lower end of the bracket 12 is provided with a storage groove 18. The inner surface of the storage groove 18 is fixedly connected with a pin 17. The outer surface of the pin 17 is rotatably connected with the movable frame 2 14. The outer surface of the pin 20 is rotatably connected with the movable frame 13. The outer surfaces of the movable frames 13 and 14 are both provided with installation grooves 32. The movable frames 13 and 14 are hinged with hinges 33 through the installation grooves 32.

[0036] The connecting seat 15 is in a U-shaped structure, the lower side of the bracket 11 is rotatably connected to the leg 1 21, the lower side of the bracket 2 12 is rotatably connected to the leg 3 23, and the lower side of the movable frame 2 14 is rotatably connected to the leg 2 22. The leg 1 21, the leg 2 22 and the leg 3 23 are distributed in a triangular shape, and the movable frame 1 13 and the movable frame 2 14 correspond to the positions of the storage slot 2 19 and the storage slot 1 18 respectively.

[0037] By adopting the above technical solution, the bracket 11, the bracket 2 12, the movable frame 13 and the movable frame 2 14 together form the main structure of the upper end of the tripod, the connecting seat 15 respectively supports the bracket 11 and the bracket 2 12 through two sets of movable rods 16, and the storage groove 2 19 provided on the surface of the bracket 11 is used to fix the pin 20, so that the movable frame 13 can be rotated with the pin 20 as the fulcrum by the pin 20. The first movable frame 12 is supported by the pin shaft 17 for rotation of the movable frame. The mounting groove 32 provided on the surface of the movable frame 13 and the second movable frame 14 is used for fixing and installing the hinge 33. The movable frame 13 and the second movable frame 14 can be turned over at a certain angle with the hinge 33 as a fulcrum. When the tripod is stored, the movable frame 13 and the second movable frame 14 are pushed toward the side of the connecting seat 15. The movable frame 13 and the second movable frame 14 are rotated with the hinge 33 as a fulcrum so that the movable frame 13 and the movable frame 14 can rotate with the hinge 33 as a fulcrum. The movable frame 14 moves closer to each other, and as the hinge 33 gradually moves toward the side of the connecting seat 15, the bracket 11 and the bracket 2 12 will gradually rotate towards each other, so that the outer surfaces of the bracket 11 and the bracket 2 12 are in contact with each other, and at the same time, the angle between the bracket 11 and the movable frame 13 will gradually become smaller, and then the movable frame 13 will gradually move into the storage slot 2 19, so that the movable frame 13 and the bracket 11 form a rectangular parallelepiped, and the movable frame 2 14 will flip to the storage slot 18 to form another set of rectangular parallelepipeds, so that the bracket 11 and the bracket 2 12 cooperate with the movable frame 13 and the movable frame 2 14 to flip from a triangle to a rectangle, which can effectively reduce the volume of the tripod after storage, so that the user can better carry and store it, thereby effectively improving the convenience and flexibility of the tripod during use, and at the same time, it can also reduce the probability of accidental rolling during transportation of the tripod, thereby effectively improving the safety of the tripod during carrying and transportation.

[0038] like Figure 4 and Figure 6 As shown, a traction assembly is provided on the inner side of the bracket 11, and the traction assembly includes a slot 41 embedded in the inner side of the bracket 11, a fixing rod 40 is fixedly connected to the inner surface of the slot 41, a mounting plate 39 is rotatably connected to the outer surface of the fixing rod 40, and a slide groove 42 is provided on the outer surface of the mounting plate 39.

[0039] The movable frame 13 is in a U-shaped structure, and a core shaft 34 is fixedly connected to the lower side of the outer surface of the movable frame 13. A pull rod 35 is rotatably connected to the outer surface of the core shaft 34. The end of the pull rod 35 away from the core shaft 34 is rotatably connected to a core shaft 2 36, and the outer surface of the core shaft 2 36 is rotatably connected to a pull rod 2 37.

[0040] A movable groove 38 is provided on the outer surface of the mounting plate 39 near the movable frame 13, and the end of the pull rod 37 away from the core shaft 36 passes through the movable groove 38 and is slidably connected to the inner surface of the movable groove 38. A mounting bolt 43 is movably connected to the inner side of the slide groove 42, and the mounting bolt 43 is used to connect and install the measuring equipment.

[0041] By adopting the above technical scheme, when the tripod is folded, the pull rod 1 35 and the pull rod 2 37 will rotate with the core shaft 1 34 and the core shaft 2 36 as the fulcrum, and the pull rod 1 35 and the pull rod 2 37 will be stored in the movable groove 38. The tripod is used to lift and support the surveying and mapping equipment. During operation, the surveying and mapping equipment can be effectively fixed and installed by the mounting bolts 43. The inner side of the bracket 11 is provided with a slot 41 for fixedly supporting the fixing rod 40. The bracket 11 rotatably supports the mounting plate 39 through the fixing rod 40. When the tripod is stored, the mounting plate 39 can be stored in the slot 41 to further reduce the volume of the tripod. The mounting plate 39 movably supports the mounting bolt 43 through the slide groove 42, so that the mounting bolt 43 can slide in the slide groove 42, so as to install and connect the surveying and mapping equipment on the upper side of the tripod. When the tripod is unfolded, the angle between the movable frame 13 and the bracket 11 continues to increase. The movable frame 13 The mandrel 1 34 is fixedly supported, and the mandrel 1 34 rotationally supports the pull rod. During the unfolding of the tripod, the movable frame 13 pulls the pull rod through the mandrel 1 34, and the pull rod 1 35 pulls the pull rod 2 37 through the mandrel 2 36. When the movable frame 13 moves, the pull rod 2 37 will first slide inside the movable groove 38 under the action of traction, and will stop moving when the pull rod 2 37 moves to the end of the movable groove 38, and then the pull rod will pull the mounting plate 39 through the movable groove 38, so that the mounting plate 39 rotates out from the groove 41 with the fixed rod 40 as the fulcrum, so that the slide groove 42 on the surface of the mounting plate 39 can be located at the center of the tripod. By setting up a traction assembly, the mounting plate 39 can be driven to move when the tripod is unfolded, and at the same time, the position of the mounting plate 39 can be limited by traction, so that the position of the mounting plate 39 can be kept stable, thereby effectively improving the installation and positioning accuracy of the surveying and mapping equipment on the tripod.

[0042] like Figure 3 , Figure 4 and Fig. 9 As shown, the outer surfaces of the bracket 11 and the bracket 2 12 are provided with positioning components, and the positioning components include a positioning plate 44 fixedly connected to the outer surface of the left end of the bracket 2 12, and a positioning hole 45 is opened on the outer surface of the positioning plate 44, and a placement groove 49 is opened on the outer surface of the right end of the bracket 11, and the placement groove 49 is connected with the inside of the slot 41.

[0043] A positioning groove 48 is provided on the outer surface of the right end of the bracket 11, and the positioning groove 48 corresponds to the position of the positioning plate 44. The positioning groove 48 is located at the lower side of the movable groove. A through hole 51 is embedded on the inner side of the bracket 11, and the through hole 51 penetrates to the lower side of the bracket 11. A positioning rod 46 is slidably connected inside the through hole 51. The positioning rod 46 is in a T-shaped structure, and the upper end of the positioning rod 46 is in an arc shape. A spring 47 is fixedly connected to the upper side of the inner surface of the placement groove 49, and the upper end of the spring 47 is fixedly connected to the positioning rod 46.

[0044] By adopting the above technical solution, during the storage process of the tripod, the mounting plate 39 will rotate to the inside of the notch 41, and at the same time, the mounting plate 39 will drive the mounting bolts 43 on its surface to move to the inside of the placement groove 49 on the surface of the bracket 11. At the same time, when the bracket 11 and the bracket 2 12 gather together, the bracket 2 12 will drive the positioning plate 44 to move to the inside of the positioning groove 48. When the mounting bolt 43 moves to the inside of the placement groove 49, the lower surface of the mounting bolt 43 will rotate and contact with the upper end of the positioning rod 46. The upper end of the positioning rod 46 is in an arc shape and can better contact with the mounting bolt 43. At this time, the positioning rod 46 will slide downward along the through hole 51 under the extrusion of the mounting bolt 43, so that the positioning rod 46 passes through the positioning hole 45 on the surface of the positioning plate 44, and the positioning rod 46 cooperates with the positioning plate 44 to lock and fix the bracket 11 and the bracket 2 12, thereby After the tripod is stored, the bracket 11 and the bracket 2 12 can be kept in a stationary state, thereby reducing the probability of accidental deployment of the tripod, and further improving the stability and reliability of the tripod storage. At the same time, compared with the traditional binding and fixing method, the convenience of tripod storage can be effectively improved. During the downward movement of the positioning rod 46, the spring 47 will be compressed so that the spring 47 is in an extruded state. When the tripod is unfolded, the user slides the mounting bolt 43 along the slide groove 42 on the surface of the mounting plate 39 to disengage the mounting bolt 43 from the upper end of the positioning rod 46. At this time, the positioning rod 46 can move upward and reset under the elastic force of the spring 47, so that the lower end of the positioning rod 46 is moved out of the positioning hole 45, thereby releasing the engagement relationship between the positioning rod 46 and the positioning plate 44, so that the tripod can be quickly deployed.

[0045] like Figure 5 and Figure 7 As shown, the inner sides of the legs 1 21, 22 and 3 are all provided with telescopic components, and the telescopic components include guide grooves 25 embedded in the inner sides of the legs 1 21, 22 and 3, 23, the inner surface of the guide grooves 25 is slidably connected to a guide block 28, the outer surface of the guide block 28 is fixedly connected to a movable leg 24, and the lower end of the movable leg 24 is fixedly connected to a wedge plate 50.

[0046] The lower ends of the three groups of movable legs 24 respectively penetrate the lower sides of leg one 21, leg two 22 and leg three 23 and are slidably connected with leg one 21, leg two 22 and leg three 23. A cavity 27 is embedded in the inner side of the movable leg 24, and a fixed shaft 30 is rotatably connected to the inner surface of the cavity 27, and an extrusion wheel 29 is fixedly connected to the outer surface of the fixed shaft 30.

[0047] The extrusion wheel 29 is elliptical in shape, and the inner side of the movable leg 24 is slidably connected to the limiting rod 31. The outer surface of the extrusion wheel 29 is in rotational contact with the limiting rod 31. The limiting rod 31 extends into the guide groove 25 away from the extrusion wheel 29. The fixed shaft 30 extends to the outer side of the movable leg 24 and is rotationally connected to the movable leg 24. The fixed shaft 30 is fixedly connected to the knob 26 at one end away from the extrusion wheel 29.

[0048] By adopting the above technical solution, when the tripod is folded, the movable frame 2 14 will be stored in the storage slot 1 18. At this time, the movable frame 2 14 will drive the leg 2 22 to move to the side of the leg 3 23, and keep the leg 2 22 and the leg 3 23 parallel to each other. The movable frame 2 14 and the bracket 2 12 will respectively drive the leg 2 22 and the leg 3 23 to fit into the surface of the leg 1 21, so that the leg 1 21, the leg 2 22 and the leg 3 23 are kept in close contact and combined into a rectangular parallelepiped, so that To further reduce the volume of the tripod after storage, in order to keep the upper surfaces of the bracket 11 and the bracket 2 12 in a horizontal state, it is necessary to flexibly adjust the position of the movable leg 24. For this purpose, a telescopic component is provided. When adjusting the position of the movable leg 24, the operator rotates the knob 26, and the knob 26 drives the extrusion wheel 29 to rotate synchronously through the fixed shaft 30. The movable leg 24 stores the extrusion wheel 29 through the cavity 27. The extrusion wheel 29 is elliptical in shape. During the rotation process, the extrusion wheel 29 is elliptical in shape. The movable leg 24 is locked and fixed by the friction force between the limit rod 31 and the guide groove 25, so that the position of the movable leg 24 can be flexibly adjusted, so that the tripod can always keep the mounting plate 39 in a horizontal state under different terrain adjustments, which not only expands the application range of the tripod, but also further improves the measurement accuracy. By inserting the wedge plate 50 on the lower side of the movable leg 24 into the ground, the position of the movable leg 24 can be kept stable, thereby increasing the probability of accidental movement of the tripod.

[0049] Instructions for use: When the tripod is in use, the limiting rod 31 is squeezed by the squeezing wheel 29 so that the limiting rod 31 is squeezed and contacted with the inner wall of the guide groove 25 away from the squeezing wheel 29, and the movable leg 24 is locked and fixed by the friction between the limiting rod 31 and the guide groove 25, and then the wedge plate 50 on the lower side of the movable leg 24 is inserted into the ground to keep the position of the movable leg 24 stable. When the tripod is stored, the movable frame 13 and the movable frame 2 14 are pushed toward the side of the connecting seat 15, and the movable frame 1 13 and the movable frame 2 14 are rotated with the hinge 33 as the fulcrum so that the movable frame 13 and the movable frame 2 14 are brought closer to each other, so that the bracket 11 and the bracket 2 12 cooperate with the movable frame 13 and the movable frame 2 14 to flip from a triangle to a rectangle, which can effectively reduce the volume of the tripod after storage. The plate 39 will drive the mounting bolts 43 on its surface to move into the placement groove 49 on the surface of the bracket 11. The positioning rod 46 will slide downward along the through hole 51 under the squeezing action of the mounting bolts 43, so that the positioning rod 46 passes through the positioning hole 45 on the surface of the positioning plate 44, and the bracket 11 and the bracket 2 12 are locked and fixed by the positioning rod 46 and the positioning plate 44, so that the bracket 11 and the bracket 2 12 can remain in a stationary state after the tripod is stored. When the tripod is unfolded, the pull rod 1 35 pulls the pull rod 2 37 through the core shaft 2 36, so that the mounting plate 39 rotates out from the slot 41 with the fixing rod 40 as the fulcrum, so that the slide groove 42 on the surface of the mounting plate 39 can be at the center of the tripod, thereby effectively improving the installation and positioning accuracy of the surveying and mapping equipment on the tripod.

[0050] The above is only a preferred specific implementation of the present invention; however, 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 solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foldable rectangular portable surveying and mapping tripod, comprising a connecting seat (15), characterized in that: The inner side of the connecting seat (15) is fixedly connected with a movable rod (16), the movable rods (16) are in two groups and are symmetrically distributed, and a folding assembly is arranged on the outer side of the movable rod (16); The folding assembly comprises a bracket 1 (11) and a bracket 2 (12) which are rotatably connected to two groups of movable rods (16) respectively; a receiving groove 2 (19) is provided on the upper side of the outer surface of the bracket 1 (11); a pin 2 (20) is fixedly connected to the inner side of the receiving groove 2 (19) on the upper end outer surface of the bracket 1 (11); a receiving groove 1 (18) is provided on the lower end outer surface of the bracket 2 (12); a pin 1 (17) is fixedly connected to the inner surface of the receiving groove 1 (18); the outer surface of the pin 1 (17) is rotatably connected to the movable frame 2 (14); the outer surface of the pin 2 (20) is rotatably connected to the movable frame 1 (13); the front end outer surfaces of the movable frame 1 (13) and the movable frame 2 (14) are both provided with mounting grooves (32); a hinge (33) is hinged between the movable frame 1 (13) and the movable frame 2 (14) via the mounting groove (32); A traction assembly is provided on the inner side of the bracket one (11), the traction assembly comprising a slot (41) embedded in the inner side of the bracket one (11), a fixing rod (40) being fixedly connected to the inner surface of the slot (41), a mounting plate (39) being rotatably connected to the outer surface of the fixing rod (40), and a slide groove (42) being provided on the outer surface of the mounting plate (39); The movable frame 1 (13) is in a U-shaped structure, the lower side of the outer surface of the movable frame 1 (13) is fixedly connected to the core shaft 1 (34), the outer surface of the core shaft 1 (34) is rotatably connected to the pull rod 1 (35), the end of the pull rod 1 (35) away from the core shaft 1 (34) is rotatably connected to the core shaft 2 (36), and the outer surface of the core shaft 2 (36) is rotatably connected to the pull rod 2 (37); A movable groove (38) is provided on the outer surface of the mounting plate (39) near the movable frame 1 (13); an end of the pull rod 2 (37) away from the core shaft 2 (36) passes through the movable groove (38) and is slidably connected to the inner surface of the movable groove (38); a mounting bolt (43) is movably connected to the inner side of the slide groove (42); and the mounting bolt (43) is used to connect and install the measuring device; The outer surfaces of the first bracket (11) and the second bracket (12) are provided with positioning components, the positioning components comprising a positioning plate (44) fixedly connected to the outer surface of the left end of the second bracket (12), the outer surface of the positioning plate (44) is provided with a positioning hole (45), and the outer surface of the right end of the first bracket (11) is provided with a placement groove (49), and the placement groove (49) is connected to the inside of the notch (41); A positioning groove (48) is provided on the outer surface of the right end of the bracket (11), and the positioning groove (48) corresponds to the position of the positioning plate (44). The positioning groove (48) is located at the lower side of the placement groove (49). A through hole (51) is embedded in the inner side of the bracket (11), and the through hole (51) penetrates to the lower side of the positioning groove (48). A positioning rod (46) is slidably connected inside the through hole (51), and the positioning rod (46) is in a T-shaped structure. The upper end of the positioning rod (46) is in an arc shape. A spring (47) is fixedly connected to the upper side of the inner surface of the placement groove (49), and the upper end of the spring (47) is fixedly connected to the positioning rod (46).

2. The foldable rectangular portable surveying and mapping tripod according to claim 1, characterized in that: The connecting seat (15) is in a U-shaped structure, the lower side of the bracket one (11) is rotatably connected to the support leg one (21), the lower side of the bracket two (12) is rotatably connected to the support leg three (23), and the lower side of the movable frame two (14) is rotatably connected to the support leg two (22), the support leg one (21), the support leg two (22) and the support leg three (23) are distributed in a triangular shape, and the movable frame one (13) and the movable frame two (14) correspond to the positions of the storage slot two (19) and the storage slot one (18) respectively.

3. The foldable rectangular portable surveying and mapping tripod according to claim 2, characterized in that: The inner sides of the first leg (21), the second leg (22) and the third leg (23) are all provided with telescopic components, the telescopic components comprising guide grooves (25) embedded and opened on the inner sides of the first leg (21), the second leg (22) and the third leg (23), the inner surface of the guide groove (25) being slidably connected to a guide block (28), the outer surface of the guide block (28) being fixedly connected to a movable leg (24), and the lower end of the movable leg (24) being fixedly connected to a wedge plate (50).

4. The foldable rectangular portable surveying and mapping tripod according to claim 3, characterized in that: The lower ends of the three groups of movable legs (24) respectively penetrate the lower sides of the first leg (21), the second leg (22) and the third leg (23) and are slidably connected to the first leg (21), the second leg (22) and the third leg (23); a cavity (27) is embedded in the inner side of the movable leg (24); a fixed shaft (30) is rotatably connected to the inner surface of the cavity (27); and an extrusion wheel (29) is fixedly connected to the outer surface of the fixed shaft (30).

5. The foldable rectangular portable surveying and mapping tripod according to claim 4, characterized in that: The extrusion wheel (29) is elliptical in shape, the inner side of the movable leg (24) is slidably connected to a limiting rod (31), the outer surface of the extrusion wheel (29) is in rotational contact with the limiting rod (31), the limiting rod (31) extends into the guide groove (25) on the side away from the extrusion wheel (29), the fixed shaft (30) extends to the outer side of the movable leg (24) and is rotationally connected to the movable leg (24), and the end of the fixed shaft (30) away from the extrusion wheel (29) is fixedly connected to a knob (26).

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