Leveling device

Abstract

The invention provides a leveling device which comprises a carrier plate, a turntable is rotatably mounted at the top of the carrier plate, a leveling instrument body is detachably fixed at the top of the turntable, and the leveling device further comprises three support legs which are movably connected with the bottom of the carrier plate and are uniformly distributed; the notches are formed in the tail ends of the supporting legs, and sliding cavities are formed in the two side walls of inner cavities of the notches; the limiting sliding blocks are installed in the sliding cavities in a sliding mode, and a rotating block is rotationally installed between every two adjacent limiting sliding blocks; the inserting rod assembly penetrates through the rotating block, and the inserting rod assembly is used for being inserted into soil for supporting; and the three thread adjusting assemblies are arranged in the three sliding cavities correspondingly. The limiting sliding block can be driven to ascend and descend through the thread driving assembly, so that the inserting rod assembly is driven to adjust the height, the supporting legs are driven to adjust the height, and the stability during slope supporting is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of leveling surveying, and particularly relates to a leveling surveying device. Background Art

[0002] A leveling instrument, also known as a level, is a precision instrument used for leveling surveying. It is mainly used to measure the height difference between two points on the ground. The principle of leveling surveying is based on the horizontal reference under the action of gravity, the optical system of the instrument, and the propagation characteristics of light. The level adjusts the foot screws to align the instrument axis with the direction of gravity, thereby establishing a stable horizontal line of sight. The observer reads the readings of the leveling rods erected at the two points through the level, and can calculate the height difference between the two points based on the readings on the rods;

[0003] When the existing leveling instrument is actually used, although the tripod at its bottom can be opened and placed on the ground for support, when supporting and measuring on a sloping ground, due to the presence of the slope, the equipment is likely to tilt during support, so it is necessary to pad up the local legs, which is troublesome to operate and not convenient to adjust the height of the feet. Therefore, we propose a leveling surveying device. Summary of the Invention

[0004] In view of this, the present invention aims to propose a leveling surveying device to solve the technical problem of inconvenient adjustment of the height of the feet.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] A leveling surveying device includes a carrier plate. A turntable is rotatably installed on the top of the carrier plate, and a leveling instrument body is detachably fixed on the top of the turntable. It further includes:

[0007] Three legs, which are movably connected to the bottom of the carrier plate evenly, and the three legs are evenly distributed;

[0008] A notch is opened at the end of the leg, and sliding cavities are opened on both inner side walls of the notch cavity;

[0009] A limiting slider is slidably installed in the sliding cavity, and a rotating block is rotatably installed between adjacent two limiting sliders;

[0010] An insertion rod assembly penetrates through the rotating block, and the insertion rod assembly is used for inserting into the soil for support;

[0011] Three threaded adjustment assemblies are respectively arranged in three of the sliding cavities, and the threaded adjustment assemblies are used to drive the corresponding limiting sliders to rise and fall.

[0012] It should be understood that when supporting on an inclined plane, first expand the three legs. When one of the legs is at a lower position, use the screw adjustment component corresponding to this leg to drive the corresponding limit slider to slide downward, thereby driving the insertion rod assembly to descend, so as to make up for the height difference. Then insert the insertion rod assembly into the soil for positioning. And the insertion rod assembly can be adjusted in angle when the rotating block rotates, so that the angle of insertion into the soil can be adjusted when inserting into the soil, making the upper end of the insertion rod assembly rotate to the outside of the leg, which is convenient for operating the insertion rod assembly to insert into the soil. At the same time, the insertion angle can be adjusted to ensure that the insertion rod assembly is vertically inserted, which is beneficial to improving the stability of the insertion rod assembly after insertion and further beneficial to improving the stability of the support. Then use the level instrument body for leveling measurement.

[0013] Furthermore, a leveling measurement device further includes:

[0014] Three cages, which are evenly fixed on three sides of the bottom of the carrier plate;

[0015] Three rotating shafts, which are respectively rotatably installed on the inner walls of the three cages, and the tops of the three legs are respectively fixedly connected to the outer walls of the three rotating shafts;

[0016] Three limit rods, which are respectively fixed on the outer walls of the three cages.

[0017] It should be noted that due to the rotational performance of the legs through the rotating shafts, the legs can rotate and can be limited by the limit rods when rotating outwards, so that the three legs can be stably limited after being opened.

[0018] Furthermore, the screw adjustment component includes:

[0019] A first screw rod, which is rotatably installed on the inner wall of the sliding cavity. One end of the first screw rod movably penetrates the end face of the sliding cavity and is fixedly connected with a first rotating block;

[0020] A first threaded hole, which is opened at the bottom of the corresponding limit slider. The first screw rod penetrates the first threaded hole and is in threaded engagement.

[0021] It should be understood that by rotating the first rotating block, the first screw rod can be driven to rotate, so as to drive the corresponding limit slider to lift and lower, and thus drive the rotating block and the insertion rod assembly to lift and lower.

[0022] Furthermore, the insertion rod assembly includes:

[0023] A fixed rod, which is fixedly penetrated through the rotating block. A square cavity is arranged in the inner cavity of the fixed rod;

[0024] The movable rod is arranged at the tail end of the fixed rod. A square movable column is fixedly connected to the top of the movable rod, and the movable column is inserted into the square cavity;

[0025] The second screw rod movably penetrates through the top of the fixed rod and is inserted into the second threaded hole opened at the top of the movable column and is in threaded engagement therewith. A second rotating block is fixed to the top of the second screw rod.

[0026] It should be understood that after using the limit slider to slide and drive the plug rod assembly to adjust the position, the second rotating block can be rotated again to drive the second screw rod to rotate, so as to drive the movable column to rise and fall under the threaded drive, and then drive the movable rod to rise and fall, so as to realize secondary adjustment, increase the adjustment range, and thus be beneficial to improving the adjustment adaptability.

[0027] Furthermore, a cone is fixed to the tail end of the movable rod.

[0028] Furthermore, a jack is opened at the top of the inner cavity of the notch.

[0029] It should be understood that when not in use, the plug rod assembly can be flipped, so that the tip of the cone can be received into the jack, which is beneficial to avoiding harm to the storage personnel.

[0030] Compared with the prior art, the leveling measurement device of the present invention has the following beneficial effects:

[0031] For the leveling measurement device of the present invention, the threaded drive assembly can drive the limit slider to rise and fall, so as to drive the plug rod assembly to adjust the height, so as to drive the support leg to adjust the height, which is beneficial to improving the stability during inclined plane support;

[0032] After the plug rod assembly is adjusted to a certain position and disengaged from the jack, the plug rod assembly can be rotated and adjusted in angle under the action of the rotating block, which is beneficial to improving the adaptability when the plug rod assembly is inserted into the soil for support, so that the best angle can be adjusted to insert into the soil, which is further beneficial to improving the support stability. And the rotating block can rotate, so that when not in use, the plug rod assembly can be flipped, so that the tip can be received into the jack, which is beneficial to avoiding harm to the storage personnel.

[0033] For the leveling measurement device of the present invention, rotating the second rotating block can drive the second screw rod to rotate, so as to drive the movable column to rise and fall, so as to adjust the overall length of the fixed rod and the movable rod, which is beneficial to increasing the adjustment range of the support leg length, and thus is beneficial to further improving the adjustment adaptability. Description of the Drawings

[0034] The accompanying drawings, which form a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof are used to explain the present invention and do not unduly limit the present invention. In the drawings:

[0035] Figure 1 is a schematic diagram of the overall structure of a level measuring device according to an embodiment of the present invention;

[0036] Figure 2 is Figure 1 a schematic diagram of the enlarged structure of part A in

[0037] Figure 3 is Figure 1 a schematic diagram of the enlarged structure of part B in

[0038] Figure 4 is a schematic diagram of the connection structure between the screw drive assembly and the limit slider of a level measuring device according to an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of the plug rod assembly structure of a level measuring device according to an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1, carrier plate; 11, turntable; 12, level body; 13, cage; 14, leg; 15, limit rod; 16, sliding cavity; 17, limit slider; 18, rotating block; 19, first screw; 2, fixed rod; 21, movable rod; 22, cone; 23, second rotating block; 24, second screw; 25, movable column. Detailed implementation manners

[0042] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0043] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0046] As Figures 1-5 shown, as an embodiment, a leveling device includes a carrier plate 1. A turntable 11 is rotatably installed on the top of the carrier plate 1. A leveling instrument body 12 is detachably fixed on the top of the turntable 11. It further includes three legs 14. The three legs 14 are movably connected to the bottom of the carrier plate 1 evenly, and the three legs 14 are evenly distributed. A notch is opened at the tail end of the leg 14, and sliding cavities 16 are opened on both inner side walls of the notch cavity; a limit slider 17 is slidably installed in the sliding cavity 16, and a rotating block 18 is rotatably installed between two adjacent limit sliders 17. A plug rod assembly penetrates through the rotating block 18. The plug rod assembly is used for inserting into the soil for support, and three threaded adjustment assemblies are provided. The three threaded adjustment assemblies are respectively arranged in three of the sliding cavities 16, and the threaded adjustment assemblies are used to drive the corresponding limit sliders 17 to move up and down.

[0047] It should be understood that during actual use, when supporting on an inclined plane, first spread out the three legs 14. When one of the legs 14 is at a lower position, use the threaded adjustment assembly corresponding to this leg 14 to drive the corresponding limit slider 17 to slide downward, thereby driving the plug rod assembly to descend, so as to make up for the height difference. Then insert the plug rod assembly into the soil for positioning. And the plug rod assembly can be adjusted in angle when the rotating block 18 rotates, so that the angle of insertion into the soil can be adjusted when inserting into the soil, so that the upper end of the plug rod assembly rotates to the outside of the leg 14, which is convenient for operating the plug rod assembly to insert into the soil. At the same time, the insertion angle can be adjusted to ensure that the plug rod assembly is vertically inserted, which is beneficial to improving the stability of the plug rod assembly after insertion, and further beneficial to improving the stability of the support. Then use the leveling instrument body 12 to perform leveling measurement.

[0048] It should be noted that the measuring principle of the level body 12 is based on the horizontal reference under the action of gravity, the optical system of the instrument, and the propagation characteristics of light. The level adjusts the foot screws to make the instrument axis coincide with the direction of gravity, thereby establishing a stable horizontal line of sight. The observer reads the readings of the leveling rods erected at two points through the level, and the height difference between the two points can be calculated based on the readings on the rods.

[0049] As Figures 1-2 shown, as an embodiment, it further includes: three cages 13, which are evenly fixed on the three sides of the bottom of the carrier plate 1. A rotating shaft is installed on the inner wall of each cage 13, and the tops of the three legs 14 are respectively fixedly connected to the outer walls of the three rotating shafts; and three limiting rods 15 are provided, and the three limiting rods 15 are respectively fixed on the outer walls of the three cages 13.

[0050] It should be understood that the legs 14 can rotate through the rotational performance of the rotating shafts, so that the legs 14 can rotate. When rotating outwards, they can be limited by the limiting rods 15, so that the three legs 14 can be stably limited after being opened.

[0051] As Figures 1-3 shown, as an embodiment, the screw adjustment assembly includes a first screw 19, which is rotatably installed on the inner wall of the sliding cavity 16. One end of the first screw 19 movably penetrates the end face of the sliding cavity 16 and is fixedly connected with a first rotating block; a first threaded hole is opened at the bottom of the corresponding limiting slider 17, and the first screw 19 penetrates the first threaded hole and is in threaded engagement.

[0052] It should be understood that rotating the first rotating block can drive the first screw 19 to rotate, thereby driving the corresponding limiting slider 17 to rise and fall, and thus driving the rotating block 18 and the plug rod assembly to rise and fall.

[0053] As Figures 4-5 shown, as an embodiment, the plug rod assembly includes a fixed rod 2, which is fixedly penetrated through the rotating block 18. A square cavity is arranged in the inner cavity of the fixed rod 2. A movable rod 21 is arranged at the tail end of the fixed rod 2. A square movable column 25 is fixedly connected to the top of the movable rod 21. The movable column 25 is inserted into the square cavity. A second screw 24 movably penetrates the top of the fixed rod 2 and is inserted into a second threaded hole opened at the top of the movable column 25 and is in threaded engagement. A second rotating block 23 is fixed at the top of the second screw 24.

[0054] It should be understood that after using the limiting slider 17 to slide and drive the plug rod assembly to adjust the position, the second rotating block 23 can be rotated again to drive the second screw 24 to rotate, so that the movable column 25 is driven to rise and fall under the screw drive, and then the movable rod 21 is driven to rise and fall, thereby realizing secondary adjustment, increasing the adjustment range, and thus being beneficial to improving the adjustment adaptability.

[0055] A cone 22 is fixed to the tail end of the movable rod 21. It should be understood that the setting of the cone 22 facilitates the labor-saving of the operation when the movable rod 21 is inserted into the soil.

[0056] A jack is provided at the top of the inner cavity of the notch. It should be understood that when not in use, the insertion rod assembly can be turned over, so that the tip of the cone 22 can be received into the jack, which is beneficial to avoiding harm to the storage personnel.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A leveling device, comprising a carrier plate (1), a turntable (11) is rotatably installed on the top of the carrier plate (1), and a level body (12) is detachably fixed on the top of the turntable (11), characterized in that: It further includes three legs (14), the three legs (14) are movably connected to the bottom of the carrier plate (1) evenly, and the three legs (14) are evenly distributed. A notch is formed at the tail end of the leg (14), and sliding cavities (16) are formed on both inner walls of the notch cavity. A limit slider (17) is slidably installed in the sliding cavity (16). A rotating block (18) is rotatably installed between two adjacent limit sliders (17). An inserting rod assembly penetrates through the rotating block (18), and the inserting rod assembly is used for inserting into the soil for support. A threaded adjustment assembly is arranged in each sliding cavity (16), and the threaded adjustment assembly is used to drive the corresponding limit slider (17) to move up and down.

2. The leveling device according to claim 1, wherein: It further includes three cages (13), the three cages (13) are evenly fixed to the three sides of the bottom of the carrier plate (1). A rotating shaft is installed on the inner wall of each cage (13). The tops of the three legs (14) are respectively fixedly connected to the outer walls of the three rotating shafts, and the three limit rods (15) are respectively fixed to the outer walls of the three cages (13).

3. The leveling device according to claim 2, characterized in that: The threaded adjustment assembly includes a first screw rod (19), the first screw rod (19) is rotatably installed on the inner wall of the sliding cavity (16). One end of the first screw rod (19) movably penetrates through the end face of the sliding cavity (16) and is fixedly connected with a first rotating block. A threaded hole is formed at the bottom of the corresponding limit slider (17). The first screw rod (19) penetrates through the first threaded hole and is in threaded engagement.

4. The leveling device according to claim 3, characterized in that: The inserting rod assembly includes a fixed rod (2), the fixed rod (2) fixedly penetrates through the rotating block (18). A square cavity is arranged in the inner cavity of the fixed rod (2). A movable rod (21) is arranged at the tail end of the fixed rod (2). A square movable column (25) is fixedly connected to the top of the movable rod (21). The movable column (25) is inserted into the square cavity. A second screw rod (24) movably penetrates through the top of the fixed rod (2) and is inserted into a second threaded hole formed at the top of the movable column (25), and is in threaded engagement. A second rotating block (23) is fixed to the top of the second screw rod (24).

5. A leveling device according to claim 4, characterized in that: A cone (22) is fixed to the tail end of the movable rod (21).

6. The leveling device according to claim 5, wherein: A jack is formed at the top of the notch cavity.

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