Theodolite tripod with anti-toppling structure

Abstract

The utility model discloses a theodolite tripod with an anti-toppling structure, which relates to the technical field of building construction instruments, and adopts the technical scheme that the theodolite tripod comprises a top tray, a limiting frame hinged on the top tray and a supporting rod movably extending and retracting on the limiting frame, an auxiliary rod rotationally connected with the inner wall of the containing groove is contained in the containing groove, a movable groove is formed in the auxiliary rod, and supporting legs capable of movably stretching out and drawing back are arranged in the movable groove. The containing groove is formed in the supporting rod, and the rotatable auxiliary rod is arranged in the containing groove, so that a supporting structure can be additionally arranged on the side edge of the supporting rod after the supporting rod is supported, the contact area between the supporting rod and the ground is increased, friction force is increased, and the overall supporting stability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction equipment, in particular to a theodolite tripod with an anti-dumping structure. Background Art

[0002] The theodolite tripod is an auxiliary structure used to support the theodolite when it is in use. The support rod at the bottom is pointed, which makes it easy to support the tripod after adjusting the angle. However, because the bottom is pointed, the contact area with the ground is small and there is no large friction. When the rod is touched, it is easy to cause the support rod to slide sideways, which makes the tripod at risk of tipping over, which can easily cause unnecessary losses.

[0003] In view of this, a design or technical improvement is now proposed to solve the above problems.

[0004] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0005] The utility model aims to solve the above-mentioned shortcomings and provide a theodolite tripod with an anti-dumping structure.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A theodolite tripod with an anti-dumping structure comprises a top plate, a limit frame hingedly arranged on the top plate, and a support rod movably and retractably arranged on the limit frame, wherein the support rod is provided with a receiving groove, an auxiliary rod rotatably connected to the inner wall of the auxiliary rod is accommodated in the receiving groove, a movable groove is arranged inside the auxiliary rod, and a movable and retractable supporting foot is arranged in the movable groove.

[0008] Furthermore, the support foot includes a movable rod that slides within a movable groove and a support plate arranged at one end of the movable rod away from the auxiliary rod. The movable groove is provided with a spring with one end fixed to its inner wall and the other end fixed to the movable rod.

[0009] Furthermore, a fixing plate is provided on the outer surface of the auxiliary rod, a support screw is threadedly connected to the fixing plate, and a threaded hole adapted to the support screw is opened on the support plate.

[0010] Furthermore, the support rod is provided with a clearance groove whose width is greater than that of the auxiliary rod.

[0011] Furthermore, the auxiliary rod is provided with a through slot, in which two groups of first arc plates facing each other are arranged, the accommodating groove is provided with two groups of connecting plates spaced apart from each other, and the connecting plates are provided with second arc plates facing the two groups of first arc plates respectively.

[0012] Further, one end of the auxiliary rod away from the support foot is fixedly provided with a movable shaft rotatably connected to the inner wall of the accommodation groove. A rubber sleeve is arranged on the outer surface of the movable shaft. A limiting plate facing the rubber sleeve is arranged on the inner wall of the accommodation groove. A locking bolt that movably abuts against the rubber sleeve is threadedly connected to the limiting plate.

[0013] Compared with the prior art, the beneficial effects of this solution are as follows: By providing an accommodation groove inside the support rod and arranging a rotatable auxiliary rod inside the accommodation groove, the present utility model can additionally provide a support structure on the side of the support rod after it is supported, increasing the contact area with the ground and the friction force, thereby enhancing the overall support stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0015] Figure 1 is a front perspective schematic diagram of the present utility model;

[0016] Figure 2 is an assembled structure schematic diagram of the limiting frame and the support rod in the present utility model;

[0017] Figure 3 is a partial structure schematic diagram of the support rod in the present utility model;

[0018] Figure 4 is a partial structure schematic diagram of the auxiliary rod in the present utility model;

[0019] Figure 5 is an internal structure schematic diagram of the through groove in the present utility model;

[0020] Figure 6 is a disassembled structure schematic diagram of the auxiliary rod in the present utility model.

[0021] In the figures: 1, top plate; 11, limiting frame; 12, support rod; 2, accommodation groove; 21, auxiliary rod; 22, movable groove; 23, support foot; 24, movable rod; 25, support fixing plate; 3, spring; 4, fixing plate; 41, support screw; 42, threaded hole; 5, relief groove; 6, through groove; 61, first arc plate; 62, connecting plate; 63, second arc plate; 7, movable shaft; 71, rubber sleeve; 72, limiting plate; 73, locking bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] As Figure 1-6 shown, a theodolite tripod with an anti-tipping structure includes a top plate 1, a limit frame 11 hinged to the top plate 1, and a support rod 12 that telescopically moves on the limit frame 11. A receiving groove 2 is formed on the support rod 12, and an auxiliary rod 21 rotatably connected to its inner wall is received in the receiving groove 2. An activity groove 22 is formed inside the auxiliary rod 21, and a support foot 23 that can telescopically move is provided in the activity groove 22. When the device is in use, first level the tripod, fix the relative position between the support rod 12 and the limit frame 11 by adjusting it, and then rotate the auxiliary rod 21 out of the receiving groove 2 and support the support foot 23 on the ground, so as to form an auxiliary support for the support rod 12 and enhance the overall stability.

[0024] In one embodiment, the support foot 23 includes a movable rod 24 that is limited and slides in the activity groove 22 and a support fixing plate 25 provided at one end of the movable rod 24 away from the auxiliary rod 21. A spring 3 is provided in the activity groove 22, with one end fixed to its inner wall and the other end fixed to the movable rod 24. Since the support angle of the support rod 12 needs to be adjusted and the angle between it and the ground is not fixed, when the support foot 23 is supporting, its bottom needs to be able to expand and contract to adapt to different distances from the ground after being rotated out. In order to make its support stable, the spring 3 is provided, so as to use the spring 3 to push against the movable rod 24, so that it applies pressure to the ground, thus ensuring that the support fixing plate 25 can be in close contact with the ground.

[0025] In one embodiment, a fixing plate 4 is provided on the outer surface of the auxiliary rod 21, and a support screw 41 is threadedly connected to the fixing plate 4. A threaded hole 42 adapted to the support screw 41 is formed on the support fixing plate 25. Since the movable rod 24 and the auxiliary rod 21 are connected by the spring 3, after the spring 3 pushes the movable rod 24 to make the support fixing plate 25 fit perfectly with the ground, strong support is still needed. Then, by rotating the support screw 41, it is screwed into the threaded hole 42, and then the relative position between the support fixing plate 25 and the auxiliary rod 21 is fixed, so as to form a stable support effect.

[0026] In one embodiment, a relief groove 5 with a width greater than that of the auxiliary rod 21 is formed on the support rod 12. The relief groove 5 is used to provide clearance for the auxiliary rod 21 after it rotates out, so that it will not be unable to rotate due to the abutment of the auxiliary rod 21.

[0027] In one embodiment, a through groove 6 is formed in the auxiliary rod 21. Two sets of oppositely arranged first arc plates 61 are arranged in the through groove 6. Two sets of connecting plates 62 with a certain distance between them are arranged in the accommodating groove 2. Second arc plates 63 respectively opposite to the two sets of first arc plates 61 are arranged on the connecting plates 62. To stably fix the auxiliary rod 21 inside the accommodating groove 2, the first arc plates 61 are provided. When the auxiliary rod 21 rotates back, the first arc plates 61 will abut against the second arc plates 63, causing the relative distance between the connecting plates 62 to decrease. Then, the first arc plates 61 are clamped between the second arc plates 63 and the side wall of the accommodating groove 2. The abutment between the second arc plates 63 and the first arc plates 61 is used to stabilize the auxiliary rod 21.

[0028] In one embodiment, a movable shaft 7 rotatably connected to the inner wall of the accommodating groove 2 is fixedly arranged at one end of the auxiliary rod 21 away from the support foot 23. A rubber sleeve 71 is arranged on the outer surface of the movable shaft 7. A limiting plate 72 opposite to the rubber sleeve 71 is arranged on the inner wall of the accommodating groove 2. A locking bolt 73 that abuts against the rubber sleeve 71 in an active manner is threadedly connected to the limiting plate 72. After the auxiliary rod 21 rotates out of the accommodating groove 2, by rotating the locking bolt 73, it is tightened against the rubber sleeve 71, and thus the movable shaft 7 can be fixed by the frictional force and will not rotate arbitrarily, further improving the support stability of the auxiliary rod 21.

[0029] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

Claims

1. A theodolite tripod with an anti-tipping structure, comprising a top plate (1), a limiting frame (11) hinged to the top plate (1), and a support rod (12) that telescopically moves on the limiting frame (11), characterized in that: A receiving groove (2) is formed on the support rod (12), and an auxiliary rod (21) rotatably connected to its inner wall is received in the receiving groove (2). An activity groove (22) is formed inside the auxiliary rod (21), and a support foot (23) that can telescopically move is arranged in the activity groove (22).

2. The theodolite tripod with an anti-tipping structure according to claim 1, characterized in that: The support foot (23) includes a movable rod (24) that is limited and slides in the activity groove (22), and a support fixing plate (25) arranged at one end of the movable rod (24) away from the auxiliary rod (21). A spring (3) with one end fixed to its inner wall and the other end fixed to the movable rod (24) is arranged in the activity groove (22).

3. The theodolite tripod with an anti-tipping structure according to claim 2, characterized in that: A fixing plate (4) is arranged on the outer surface of the auxiliary rod (21), and a support screw rod (41) is threadedly connected to the fixing plate (4). A threaded hole (42) adapted to the support screw rod (41) is formed on the support fixing plate (25).

4. The theodolite tripod with an anti-tipping structure according to claim 3, wherein: A relief groove (5) with a width greater than that of the auxiliary rod (21) is formed on the support rod (12).

5. The theodolite tripod with an anti-tipping structure according to any one of claims 1-4, characterized in that: A through groove (6) is formed on the auxiliary rod (21), and two groups of first arc plates (61) opposed to each other are arranged in the through groove (6). Two groups of connecting plates (62) spaced apart are arranged in the receiving groove (2), and second arc plates (63) respectively opposed to the two groups of first arc plates (61) are arranged on the connecting plates (62).

6. The theodolite tripod with an anti-tipping structure according to claim 5, characterized in that: An activity shaft (7) rotatably connected to the inner wall of the receiving groove (2) is fixedly arranged at one end of the auxiliary rod (21) away from the support foot (23). A rubber sleeve (71) is arranged on the outer surface of the activity shaft (7). A limiting plate (72) opposed to the rubber sleeve (71) is arranged on the inner wall of the receiving groove (2), and a locking bolt (73) that movably abuts against the rubber sleeve (71) is threadedly connected to the limiting plate (72).

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