Modular tripod structure suitable for geodetic surveying

Abstract

The utility model relates to horizontal measuring instrument support technical field discloses a modular tripod structure suitable for geodetic survey, including base, the bottom hinged of base has main support leg no.

Description

Technical Field

[0001] This utility model relates to the field of level measuring instrument support technology, and in particular to a modular tripod structure suitable for geodetic surveying. Background Technology

[0002] In fields such as building construction, municipal engineering, and road construction, horizontal surveying is a core element in ensuring project accuracy. Horizontal surveying instruments such as total stations and theodolites require dedicated supports for stable setup to guarantee the accuracy of the measurement data. As an essential accessory for surveying instruments, the adaptability, flexibility, and portability of the support directly impact construction efficiency and measurement quality, making it an indispensable basic tool in geodetic or engineering surveying operations.

[0003] When measuring in narrow areas, traditional leveling instrument stands are mostly fixed and unfolded structures. The support legs cannot be flexibly folded according to the size of the space. After unfolding, they are easily restricted by the environment and cannot be placed stably. In some cases, they are too large to enter narrow working areas, which makes it impossible to set up the measuring instrument properly and affects the construction progress. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a modular tripod structure suitable for geodetic surveying.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a modular tripod structure suitable for geodetic surveying, comprising a base, a main support leg 1 hinged to the bottom of the base, a main support leg 2 connected to the lower end of the main support leg 1 via a hinge, a secondary support leg 1 slidably connected to the main support leg 1, a secondary support leg 2 connected to the secondary support leg 1 via a hinge, the secondary support leg 2 slidably connected to the main support leg 2, a connecting block 1 fixedly connected to the upper end of the main support leg 2, a limiting groove provided on the main support leg 1, a wedge-shaped locking post slidably connected to the main support leg 1, a lever fixedly connected to the upper end of the wedge-shaped locking post, the lever slidably connected to the limiting groove, a spring fixedly connected to the upper end of the wedge-shaped locking post, and the upper end of the spring fixedly connected to the main support leg 1.

[0006] As a further description of the above technical solution: a limiting block is fixedly connected to the lower cavity of the first auxiliary support leg, a connecting block two is fixedly connected to the upper end of the second auxiliary support leg, and a fixing bolt is threaded through one side of the lower end of the second main support leg, with one end of the fixing bolt abutting against one side of the second auxiliary support leg.

[0007] As a further description of the above technical solution: the lower end of the second auxiliary support leg is fixedly connected to a foot nail, and a foot pedal is fixedly connected to one side of the foot nail.

[0008] As a further description of the above technical solution: the bottom of the base is rotatably connected to an annular plate, the annular plate is provided with connecting bolts, and one side of the lower end of the two main support legs is fixedly connected to a side lug.

[0009] As a further description of the above technical solution: the first connecting block is spherical in shape, and the second connecting block is spherical in shape.

[0010] As a further description of the above technical solution: the second auxiliary support leg extends through the lower end of the second main support leg, the second main support leg has three sets, and the side ears have three sets.

[0011] As a further description of the above technical solution: a strap may be provided on the side ear.

[0012] This utility model has the following beneficial effects:

[0013] 1. In this utility model, the device can compress the spring of the wedge-shaped locking post by pushing the lever upward, thereby folding the second main support leg and the second auxiliary support leg on one side of the first main support leg and the first auxiliary support leg. After storage, the three sets of first main support legs are opened in a triangular shape to support the ground. The support legs can be folded a second time according to the narrow measurement environment to achieve stable support for measuring instruments such as total stations and theodolites, solving the problem of instrument setting up in narrow areas. At the same time, the second folding design also facilitates the subsequent placement and transportation of the device.

[0014] 2. In this utility model, in an open area, the main support leg 2 and the auxiliary support leg 2 can be reversed and locked by the wedge-shaped locking post and spring reset. After tightening the fixing bolt, pressing the pedal can drive the auxiliary support leg 2 and the auxiliary support leg 1 to slide and adjust the height to suit the user's height for setting up the measuring instrument, thus improving the operating comfort. In addition, the side ears on the outside of the three sets of main support legs 2 can be tied with straps to facilitate the binding and fixing of the support legs during subsequent movement, making it easy to move the device. Attached Figure Description

[0015] Figure 1 A schematic diagram of a modular tripod structure suitable for geodetic surveying proposed in this utility model. Figure 1 ;

[0016] Figure 2 This is a folded display diagram of a modular tripod structure suitable for geodetic surveying proposed in this utility model;

[0017] Figure 3 An exploded view of a modular tripod structure suitable for geodetic surveying proposed in this utility model;

[0018] Figure 4 This is a partial structural cross-sectional view of a modular tripod structure suitable for geodetic surveying proposed in this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 for Figure 1 Enlarged view of section B in the middle.

[0021] Legend:

[0022] 1. Base; 2. Main support leg one; 3. Main support leg two; 4. Secondary support leg one; 5. Secondary support leg two; 6. Connecting block one; 7. Wedge-shaped locking post; 8. Limiting groove; 9. Spring; 10. Pulley; 11. Connecting block two; 12. Limiting block; 13. Fixing bolt; 14. Foot nail; 15. Pedal; 16. Ring wrench; 17. Connecting bolt; 18. Side lug. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Example 1:

[0027] like Figures 1 to 6As shown, a modular tripod structure suitable for geodetic surveying includes a base 1. A main support leg 2 is hinged to the bottom of the base 1. A second main support leg 3 is connected to the lower end of the first main support leg 2 via a hinge. A second auxiliary support leg 4 is slidably connected to the first main support leg 2. A second auxiliary support leg 5 is connected to the second auxiliary support leg 4 via a hinge. The second auxiliary support leg 5 is slidably connected to the second main support leg 3. A connecting block 6 is fixedly connected to the upper end of the second main support leg 3. A limiting groove 8 is provided on the first main support leg 2. A wedge-shaped locking post 7 is slidably connected to the first main support leg 2. A lever 10 is fixedly connected to the upper end of the wedge-shaped locking post 7. The lever 10 is slidably connected to the limiting groove 8. A spring 9 is fixedly connected to the upper end of the wedge-shaped locking post 7. The upper end of the spring 9 is fixedly connected to the first main support leg 2.

[0028] Furthermore, in this embodiment, when folding is required, the pusher block 10 is slid upward along the limiting groove 8. The pusher block 10 drives the wedge-shaped locking post 7 to move upward and compress the spring 9. After the wedge-shaped locking post 7 disengages from the connecting block 1 6, the main support leg 2 3 is rotated around the hinge. The main support leg 2 3 drives the secondary support leg 2 5 to rotate synchronously, so that the main support leg 2 3 and the secondary support leg 2 5 respectively fit against the main support leg 1 2 and the secondary support leg 1 4. When unfolding is required, the main support leg 2 3 is moved in the opposite direction. The connecting block 1 6 presses the inclined surface of the wedge-shaped locking post 7 to move it upward. The connecting block 1 6 is reset by the rear spring 9 and pushes the wedge-shaped locking post 7 to lock the connecting block 1 6, thus completing the fixation of the main support leg 2 3. This allows the three sets of main support legs 1 2 and main support legs 2 3 to cooperate to achieve a triangular support base structure. The engagement of the wedge-shaped locking post 7 and the connecting block 1 6 ensures the stability of the support leg after unfolding. The spring 9 and the pusher block 10 cooperate to achieve a quick switch between folding and unfolding of the support leg.

[0029] Specifically, a limiting block 12 is fixedly connected to the lower cavity of the secondary support leg 4, a connecting block 2 11 is fixedly connected to the upper end of the secondary support leg 5, and a fixing bolt 13 is threadedly connected to one side of the lower end of the main support leg 3, with one end of the fixing bolt 13 abutting against one side of the secondary support leg 5.

[0030] In this embodiment, when adjusting the height, the fixing bolt 13 is loosened to disengage it from the secondary support leg 2 5, and the secondary support leg 2 5 is pushed to slide along the main support leg 2 3. The secondary support leg 2 5 drives the connecting block 2 11 to move synchronously, and the connecting block 2 11 drives the secondary support leg 1 4 to slide along the main support leg 1 2. After the height is determined, the fixing bolt 13 is tightened to press against the secondary support leg 2 5, restricting the sliding of the secondary support leg 2 5. The height of the bracket is adjusted by the sliding of the secondary support leg 1 4 and the secondary support leg 2 5. The limiting block 12 cooperates with the connecting block 2 11 to prevent the secondary support leg 2 5 from coming out of the main support leg 2 3. The fixing bolt 13 ensures that the height of the support leg is stable after adjustment.

[0031] Specifically, the lower end of the secondary support leg 2 5 is fixedly connected to a foot nail 14, and a foot pedal 15 is fixedly connected to one side of the foot nail 14.

[0032] As a preferred implementation, when the bracket is placed on the ground, stepping down on the pedal 15 causes the foot nails 14 to press against the ground, allowing the foot nails 14 to insert into the soil or gravel. The insertion of the foot nails 14 into the ground enhances the bracket's anti-slip capability. The pedal 15 increases the force-bearing area, making it easier for the user to fix the foot nails 14 to the ground by stepping on them.

[0033] Specifically, the bottom of the base 1 is rotatably connected to an annular plate 16, and the annular plate 16 is provided with connecting bolts 17. A side lug 18 is fixedly connected to one side of the lower end of the main support leg 2 3.

[0034] In this embodiment, when installing the measuring instrument, the bottom of the instrument is attached to the base 1, the ring wrench 16 is rotated to adjust the position of the connecting bolt 17, and the connecting bolt 17 is tightened to fix the instrument; when storing the bracket, the strap is passed through the through holes of the three sets of side ears 18 and the three sets of support legs are tied and fixed. The side ears 18 and the strap are used to fix the support legs during storage and reduce shaking during transportation.

[0035] Specifically, the shape of connecting block 1 (6) is spherical, and the shape of connecting block 2 (11) is spherical.

[0036] Specifically, the secondary support leg 2 5 runs through the lower end of the main support leg 2 3, the main support leg 2 3 has three sets, and the side ears 18 have three sets.

[0037] When the support is deployed, the three main support legs are arranged in an equilateral triangle, forming a triangular support with the ground. When stored, the three side ears are tied together with straps to keep the three support legs together. The triangular arrangement of the three main support legs enhances the overall stability of the support. The simultaneous binding of the three side ears ensures that the support legs are neatly stored and easy to carry.

[0038] Specifically, a strap may be provided on the side ear 18.

[0039] In this embodiment, the strap can be made of nylon and its length is greater than the diameter of the outer circle formed by the three sets of side ears 18. Both ends are provided with Velcro or buckles. The diameter of the through hole of the side ear 18 is greater than the width of the strap. The strap and the side ear 18 work together to quickly fix the support leg, prevent the support leg from loosening and shaking during transportation, and improve portability.

[0040] Working principle: When measuring in a narrow area, firstly, push the lever 10 upwards and slide it on the limiting groove 8. The lever 10 drives the wedge-shaped locking post 7 to slide on the main support leg 1 2 and compress the spring 9. When the wedge-shaped locking post 7 moves to the moving position, the main support leg 2 3 is pulled. The main support leg 2 3 and the auxiliary support leg 2 5 are both rotated on the main support leg 1 2 and the auxiliary support leg 1 4 through hinges. When the main support leg 2 3 and the auxiliary support leg 2 5 are folded in half on one side of the main support leg 1 2 and the auxiliary support leg 1 4, the storage is completed. Then, the three sets of main support legs 1 2 are opened in a triangular shape and supported on the ground to form a triangular support. Then, the measuring side of the total station or theodolite is placed on the base 1 and connected and fixed by tightening the connecting bolt 17. Thus, the user can fold the main support leg 1 2 and the main support leg 2 3 a second time according to the measurement environment to support the instrument when measuring in a narrow environment. The second fold also facilitates subsequent placement and transportation.

[0041] When measuring in an open area, reverse the movement of the main support leg 2 (3) and the auxiliary support leg 2 (5) via hinges to rotate on the main support leg 1 (2) and the auxiliary support leg 1 (4). When the connecting block 1 (6) on the main support leg 2 (3) contacts one side of the wedge-shaped locking post 7, the inclined surface on one side of the wedge-shaped locking post 7 causes it to slide upward on the main support leg 1 (2) and compress the spring 9. When the connecting block 1 (6) passes the wedge-shaped locking post 7, the spring 9 rebounds, causing the wedge-shaped locking post 7 to return downward and lock the main support leg 2 (3) on the connecting block 1 (6). At this time, the connecting block 2 (11) is located inside the limiting block 12. When the support height needs to be adjusted, the fixing bolt 13 is turned. When one side of the auxiliary support leg 2 5 is detached from the other side, press down on the pedal 15. The pedal 15 drives the foot nail 14 to move downward. The foot nail 14 drives the auxiliary support leg 2 5 to slide on the main support leg 2 3. The auxiliary support leg 2 5 is locked on the limit block 12 through the connecting block 2 11, which simultaneously drives the auxiliary support leg 1 4 to slide on the main support leg 1 2. After all three sets of auxiliary support legs 2 5 have been adjusted, the fixing bolt 13 can be tightened in the opposite direction to fix it. This allows the measuring instrument to be set up in an open space according to the individual's height, improving comfort. In addition, the outer side of each of the three sets of main support legs 2 3 is provided with a side ear 18, on which a strap can be tied to, making it convenient to bind the three sets of support legs when moving them later.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular tripod structure suitable for geodetic surveying, comprising a base (1), characterized in that: The base (1) is hinged to a main support leg 1 (2) at the bottom. The lower end of the main support leg 1 (2) is connected to a main support leg 2 (3) via a hinge. The main support leg 1 (2) is slidably connected to a secondary support leg 1 (4). The secondary support leg 1 (4) is connected to a secondary support leg 2 (5) via a hinge. The secondary support leg 2 (5) is slidably connected to the main support leg 2 (3). The upper end of the main support leg 2 (3) is fixedly connected to a connecting block 1 (6). The main support leg 1 (2) is provided with a limiting groove (8). The main support leg 1 (2) is slidably connected to a wedge-shaped locking post (7). The upper end of the wedge-shaped locking post (7) is fixedly connected to a lever (10). The lever (10) is slidably connected to the limiting groove (8). The upper end of the wedge-shaped locking post (7) is fixedly connected to a spring (9). The upper end of the spring (9) is fixedly connected to the main support leg 1 (2).

2. The modular tripod structure suitable for geodetic surveying according to claim 1, characterized in that: A limiting block (12) is fixedly connected to the lower cavity of the auxiliary support leg one (4), a connecting block two (11) is fixedly connected to the upper end of the auxiliary support leg two (5), and a fixing bolt (13) is threadedly connected to one side of the lower end of the main support leg two (3), with one end of the fixing bolt (13) abutting against one side of the auxiliary support leg two (5).

3. A modular tripod structure suitable for geodetic surveying according to claim 2, characterized in that: The lower end of the secondary support leg (5) is fixedly connected to a foot nail (14), and a foot pedal (15) is fixedly connected to one side of the foot nail (14).

4. A modular tripod structure suitable for geodetic surveying according to claim 3, characterized in that: The bottom of the base (1) is rotatably connected to an annular plate (16), and the annular plate (16) is provided with connecting bolts (17). A side ear (18) is fixedly connected to one side of the lower end of the main support leg (3).

5. A modular tripod structure suitable for geodetic surveying according to claim 4, characterized in that: The first connecting block (6) is spherical in shape, and the second connecting block (11) is spherical in shape.

6. A modular tripod structure suitable for geodetic surveying according to claim 5, characterized in that: The second auxiliary support leg (5) extends through the lower end of the second main support leg (3). The second main support leg (3) has three sets, and the side ears (18) have three sets.

7. A modular tripod structure suitable for geodetic surveying according to claim 6, characterized in that: The side ear (18) may be provided with a strap.

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