Three-legged support for surveying and mapping

Abstract

The utility model relates to the technical field of supports, in particular to a three-legged support for surveying and mapping, which comprises an assembly seat, a three-legged connecting frame is fixedly connected to the bottom surface of the assembly seat, and a plurality of supporting legs are rotatably connected to the bottom of the three-legged connecting frame through damping hinges. The three-legged support has the advantages that when the three-legged support needs to be transported, the supporting plates can be pushed to rotate around the connecting rods until the inner sides of the supporting plates make contact with the base plates, then the locking bolts are twisted to enable the screw portions of the locking bolts to be connected into the threaded holes in a screwed mode, the supporting plates can be folded, the size of the supporting plates is reduced, and the supporting plates are convenient to transport. The triangular support is convenient to transport, then a locking pin is pulled outwards to move out of a locking hole, locking of a sliding plate is relieved, at the moment, the sliding plate is pushed upwards till the anti-skid nails completely retract into the sliding groove, then the anti-skid nails can be stored in the sliding groove, and the anti-skid nails are prevented from being exposed outside to cause potential danger to surrounding pedestrians or vehicles.

Description

Technical Field

[0001] This utility model relates to the field of support technology, and in particular to a tripod for surveying. Background Technology

[0002] A surveying tripod is a support device specifically designed for surveying operations. Its main function is to provide a stable and reliable platform for supporting surveying instruments such as total stations, theodolites, and levels. A tripod typically consists of three extendable legs and a pan-tilt head connected to the top of the legs. The leg design allows the tripod to adapt to various terrains and ground conditions, ensuring that the surveying instrument remains level and stable in any environment. The pan-tilt head is responsible for adjusting the direction and angle of the surveying instrument to meet the specific needs of the surveying operation.

[0003] To ensure the stability of tripods on complex terrain, anti-slip studs are typically installed on their legs. These studs are usually designed with sharp points to increase friction with the ground and prevent the tripod from sliding on sloping or uneven surfaces. While this design does provide excellent stability during surveying operations, it poses certain safety hazards during transportation. When tripods need to be transported to different surveying locations, if the anti-slip studs are still exposed, they may pose a potential danger to pedestrians or vehicles in the vicinity. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to provide a tripod for surveying, in order to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of this utility model provides a tripod for surveying, including an assembly base. A tripod connecting frame is fixedly connected to the bottom surface of the assembly base. A plurality of support legs are rotatably connected to the bottom of the tripod connecting frame via damping hinges. Folding triangular brackets are fixedly connected between the support legs. A sliding groove is formed on the inner side of each support leg, and a sliding plate is slidably connected to the inner wall of each groove. Limiting pins are fixedly connected to the left and right sides of each sliding plate. Limiting slots are formed on the left and right sides of each support leg. Two limiting pins are connected via two… The limiting slot is slidably connected to the support leg. The bottom surface of the slide plate is fixedly connected to an anti-slip nail, which is located inside the slide groove. A groove is opened on the inner side of the slide plate. A spring is slidably connected to the inner wall of the groove. A locking pin is fixedly connected to the end of the spring away from the slide plate. The end of the locking pin away from the spring is engaged with the support leg. A connecting rod is fixedly connected to the outer side of the support leg. A rotating sleeve is rotatably connected to the outer surface of the connecting rod. A support plate is fixedly connected to the outer surface of the rotating sleeve. A locking bolt is rotatably connected to the side of the support leg. The threaded part of the locking bolt is threadedly connected to the rotating sleeve.

[0007] Preferably, in any of the above embodiments, a guide rod is fixedly connected to the top surface of the slide plate, a guide hole is provided on the inner wall of the slide groove, and the guide rod is slidably connected to the support leg through the guide hole.

[0008] Preferably, as described in any of the above schemes, the outer side of the support leg is provided with a plurality of linearly arrayed locking holes, and the end of the locking pin away from the spring is engaged with the support leg through the locking holes.

[0009] Preferably, in any of the above embodiments, a baffle is fixedly connected to the inner wall of the chute, the slide plate is slidably connected to the baffle, and the baffle corresponds to the anti-slip nail.

[0010] Preferably, in any of the above embodiments, the inner wall of the chute is fixedly connected to two symmetrically arranged horizontal plates, a limit ring is fixedly connected between the two horizontal plates, and the anti-slip nail is slidably connected to the limit ring.

[0011] Preferably, in any of the above embodiments, a pad is fixedly connected to the outer side of the support leg, the pad is perpendicular to the support leg, and the side of the pad away from the support leg is in contact with the inner side of the support plate.

[0012] Preferably, in any of the above solutions, the end face of the rotating sleeve is provided with a plurality of circumferentially arranged threaded holes, and the screw portion of the locking bolt is threadedly connected to the rotating sleeve through the threaded holes.

[0013] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0014] 1. When transporting the tripod, push the support plate to rotate around the connecting rod until the inner side of the support plate contacts the pad. Then, turn the locking bolt to screw the screw into the threaded hole. This allows the support plate to be folded, reducing its volume and facilitating the transport of the tripod. Next, pull the locking pin outward to move it out of the locking hole, releasing the locking of the slide plate. Then, push the slide plate upward until the anti-slip nails are fully retracted into the groove. This allows the anti-slip nails to be stored inside the groove, preventing them from being exposed and posing a potential danger to pedestrians or vehicles.

[0015] 2. When placing a tripod on hard ground, first unfold several support legs and place them on the ground. Then, adjust the locking bolts and screw them into the threaded holes until the outer side of the support plate contacts the ground. After that, lock the rotating sleeve again. The support plate supports the support legs, greatly improving the stability of the tripod. When placing a tripod on soft ground, fold the support plate and control the anti-slip nails to extend out of the grooves. The anti-slip nails can be inserted into the ground, greatly improving the stability of the tripod. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the assembly of this utility model;

[0017] Figure 2 This is a second-view structural diagram of the assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of this utility model;

[0019] Figure 4 This is an exploded structural diagram of the support leg of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the support leg of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure at point A of this utility model.

[0022] In the diagram: 1-Assembly base, 2-Tripod connecting frame, 3-Support leg, 4-Folding triangular bracket, 5-Slide groove, 6-Slide plate, 7-Limit pin, 8-Limit slot, 9-Anti-slip nail, 10-Groove, 11-Spring, 12-Locking pin, 13-Connecting rod, 14-Rotating sleeve, 15-Support plate, 16-Locking bolt, 17-Guide rod, 18-Guide hole, 19-Locking hole, 20-Baffle, 21-Horizontal plate, 22-Limit ring, 23-Pad, 24-Threaded hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0024] like Figures 1 to 6 As shown, a tripod for surveying includes an assembly base 1. A tripod connecting frame 2 is fixedly connected to the bottom of the assembly base 1. Several support legs 3 are rotatably connected to the bottom of the tripod connecting frame 2 via damping hinges. Folding triangular brackets 4 are fixedly connected between the support legs 3. Each support leg 3 has a groove 5 on its inner side. A sliding plate 6 is slidably connected to the inner wall of each groove 5. Limiting pins 7 are fixedly connected to the left and right sides of the sliding plate 6. Limiting slots 8 are opened on the left and right sides of each support leg 3. The two limiting pins 7 are slidably connected to the support leg 3 through the two limiting slots 8. The sliding plate 6... The bottom surface is fixedly connected with anti-slip nails 9, which are located inside the slide groove 5. The inner side of the slide plate 6 is provided with a groove 10. The inner wall of the groove 10 is slidably connected with a spring 11. The end of the spring 11 away from the slide plate 6 is fixedly connected with a locking pin 12. The end of the locking pin 12 away from the spring 11 is engaged with the support leg 3. The outer side of the support leg 3 is fixedly connected with a connecting rod 13. The outer surface of the connecting rod 13 is rotatably connected with a rotating sleeve 14. The outer surface of the rotating sleeve 14 is fixedly connected with a support plate 15. The side of the support leg 3 is rotatably connected with a locking bolt 16. The screw part of the locking bolt 16 is threadedly connected to the rotating sleeve 14.

[0025] As an optional technical solution of this utility model, a guide rod 17 is fixedly connected to the top surface of the slide plate 6, and a guide hole 18 is opened in the inner wall of the slide groove 5. The guide rod 17 is slidably connected to the support leg 3 through the guide hole 18. The guide rod 17 can guide the slide plate 6 to slide inside the slide groove 5.

[0026] As an optional technical solution of this utility model, a number of linear array locking holes 19 are provided through the outer side of the support leg 3. The end of the locking pin 12 away from the spring 11 is engaged with the support leg 3 through the locking hole 19. Pulling the locking pin 12 outward causes it to move out of the locking hole 19, thereby releasing the lock on the slide plate 6. At this time, push the slide plate 6 upward until the anti-slip nail 9 is completely retracted into the slide groove 5, and then the anti-slip nail 9 can be stored in the slide groove 5.

[0027] As an optional technical solution of this utility model, a baffle 20 is fixedly connected to the inner wall of the slide 5, and the slide plate 6 is slidably connected to the baffle 20. The baffle 20 corresponds to the anti-slip nail 9, and the baffle 20 can cover the anti-slip nail 9, reducing the risk of the anti-slip nail 9 being exposed.

[0028] As an optional technical solution of this utility model, the inner wall of the slide groove 5 is fixedly connected to two symmetrically arranged horizontal plates 21, and a limiting ring 22 is fixedly connected between the two horizontal plates 21. The anti-slip nail 9 is slidably connected to the limiting ring 22, and the limiting ring 22 can support the protruding anti-slip nail 9, thereby improving the stability of the anti-slip nail 9.

[0029] As an optional technical solution of this utility model, a pad 23 is fixedly connected to the outer side of the support leg 3. The pad 23 is perpendicular to the support leg 3. The side of the pad 23 away from the support leg 3 is in contact with the inner side of the support plate 15. The pad 23 can support the support plate 15.

[0030] As an optional technical solution of this utility model, the end face of the rotating sleeve 14 is provided with a plurality of circumferentially arrayed threaded holes 24, and the screw part of the locking bolt 16 is threadedly connected to the rotating sleeve 14 through the threaded holes 24. The support plate 15 can support the support leg 3, which greatly improves the stability of the triangular bracket.

[0031] A tripod for surveying works on the following principle:

[0032] 1) When the tripod needs to be transported, the support plate 15 can be pushed to rotate around the connecting rod 13 until the inner side of the support plate 15 contacts the pad 23. Then, the locking bolt 16 can be turned so that the screw part is screwed into the threaded hole 24, and the support plate 15 can be folded.

[0033] 2): Pull the locking pin 12 outward to move it out of the locking hole 19, thereby releasing the lock on the slide plate 6. Then push the slide plate 6 upward until the anti-slip nail 9 is completely retracted into the slide groove 5. After that, the anti-slip nail 9 can be stored inside the slide groove 5.

[0034] 3): When it is necessary to place a tripod on a hard ground, first unfold several support legs 3 and place them on the ground. Then adjust the locking bolts 16 and screw them into the threaded holes 24 until the outer side of the support plate 15 contacts the ground. Then lock the rotating sleeve 14 again. The support plate 15 can support the support legs 3.

[0035] In summary, when transporting this surveying tripod, the support plate 15 can be pushed to rotate around the connecting rod 13 until the inner side of the support plate 15 contacts the pad 23. Then, the locking bolt 16 is turned so that its threaded part is screwed into the threaded hole 24, allowing the support plate 15 to be folded, thereby reducing its volume and facilitating the transport of the tripod. Subsequently, the locking pin 12 is pulled outward to move out of the locking hole 19, releasing the lock on the slide plate 6. At this point, the slide plate 6 is pushed upward until the anti-slip nail 9 is completely retracted into the slide groove 5, allowing the anti-slip nail 9 to be stored inside the slide groove 5, preventing it from being exposed. The tripod poses a potential danger to pedestrians or vehicles. When placing the tripod on a hard surface, first unfold several support legs 3 and place them on the ground. Then, adjust the locking bolts 16 and screw them into the threaded holes 24 until the outer side of the support plate 15 contacts the ground. Then, lock the rotating sleeve 14 again. The support plate 15 can support the support legs 3, greatly improving the stability of the tripod. When placing the tripod on a soft surface, fold the support plate 15 and control the anti-slip nails 9 to extend out of the groove 5. The anti-slip nails 9 can be inserted into the ground, greatly improving the stability of the tripod.

Claims

1. A tripod for surveying, characterized in that: The assembly includes an assembly base (1), on which a tripod connecting frame (2) is fixedly connected to the bottom surface. Several support legs (3) are rotatably connected to the bottom of the tripod connecting frame (2) via damping hinges. Folding triangular brackets (4) are fixedly connected between the support legs (3). A sliding groove (5) is provided on the inner side of each support leg (3). A sliding plate (6) is slidably connected to the inner wall of each sliding groove (5). Limiting pins (7) are fixedly connected to the left and right sides of the sliding plate (6). Limiting slots (8) are provided on the left and right sides of each support leg (3). Two limiting pins (7) are slidably connected to the support leg (3) through two limiting slots (8). Anti-slip nails (9) are fixedly connected to the bottom surface of the sliding plate (6). The anti-slip nail (9) is located inside the slide groove (5). The inner side of the slide plate (6) is provided with a groove (10). The inner wall of the groove (10) is slidably connected with a spring (11). The end of the spring (11) away from the slide plate (6) is fixedly connected with a locking pin (12). The end of the locking pin (12) away from the spring (11) is engaged with the support leg (3). The outer side of the support leg (3) is fixedly connected with a connecting rod (13). The outer surface of the connecting rod (13) is rotatably connected with a rotating sleeve (14). The outer surface of the rotating sleeve (14) is fixedly connected with a support plate (15). The side of the support leg (3) is rotatably connected with a locking bolt (16). The screw part of the locking bolt (16) is threadedly connected to the rotating sleeve (14).

2. The tripod for surveying according to claim 1, characterized in that: The top surface of the slide plate (6) is fixedly connected to a guide rod (17), and the inner wall of the slide groove (5) is provided with a guide hole (18). The guide rod (17) is slidably connected to the support leg (3) through the guide hole (18).

3. A tripod for surveying according to claim 2, characterized in that: The outer side of the support leg (3) is provided with a number of linear array locking holes (19), and the end of the locking pin (12) away from the spring (11) is engaged with the support leg (3) through the locking holes (19).

4. A tripod for surveying according to claim 3, characterized in that: The inner wall of the chute (5) is fixedly connected to a baffle (20), the slide plate (6) is slidably connected to the baffle (20), and the baffle (20) corresponds to the anti-slip nail (9).

5. A tripod for surveying according to claim 4, characterized in that: The inner wall of the slide (5) is fixedly connected to two symmetrically arranged horizontal plates (21), and a limiting ring (22) is fixedly connected between the two horizontal plates (21). The anti-slip nail (9) is slidably connected to the limiting ring (22).

6. A tripod for surveying according to claim 5, characterized in that: A pad (23) is fixedly connected to the outside of the support leg (3). The pad (23) is perpendicular to the support leg (3), and the side of the pad (23) away from the support leg (3) is in contact with the inside of the support plate (15).

7. A tripod for surveying according to claim 6, characterized in that: The end face of the rotating sleeve (14) is provided with a plurality of circumferentially arranged threaded holes (24), and the screw part of the locking bolt (16) is threadedly connected to the rotating sleeve (14) through the threaded holes (24).

Images