Level gauge for surveying

Abstract

The level gauge comprises a level gauge body, the level gauge body is fixedly arranged on the top face of an upper mounting disc, the bottom face of the upper mounting disc is fixedly connected with the top face of a middle mounting disc through a plurality of first connecting rods, and the middle mounting disc is connected with a lower mounting disc through a leveling mechanism; the leveling mechanism is used for driving the middle mounting disc and the upper mounting disc to keep horizontal, and the edge of the lower mounting disc is connected with the multiple supports through hinges. According to the surveying level gauge, the electric telescopic rod is controlled to be opened and closed through movement of bubbles in the glass spherical shell during inclination, then the angles of the middle mounting disc and the upper mounting disc are automatically adjusted, the middle mounting disc and the upper mounting disc are automatically adjusted to be in the horizontal state, and therefore the level gauge body is kept horizontal. The adjusting process is automatically completed, time and labor are saved, and the whole exploration period can be effectively shortened.

Description

Technical Field

[0001] The invention relates to the field of levels, in particular to a level for surveying. Background Art

[0002] A level is an instrument that establishes a horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the principle of leveling. For example, the patent with application number 201610438884.8 discloses an optical level, including a base and a level body consisting of an objective lens, an eyepiece, and a coarse aiming device. A horizontal disk is provided between the base and the level body, an angle scale is provided on the horizontal disk, and a foot screw is provided between the base and the horizontal disk for adjusting the level of the level body. A circular level is provided on the upper surface of the horizontal disk, one end of the level body is an objective lens, and the other end is an eyepiece. A coarse aiming device is provided between the objective lens and the eyepiece, and a focusing knob is provided on the side of the coarse aiming device. Rotating the focusing knob is used to achieve accurate positioning of the target. The optical level of the present invention is simple to operate, can be used for distance measurement and angle measurement, and has high measurement accuracy.

[0003] However, the above-mentioned level and similar levels generally need to be manually adjusted for leveling when in use. This process takes a lot of time and prolongs the entire survey cycle, so improvements need to be made. Summary of the invention

[0004] The purpose of the present invention is to provide a surveying level to solve the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A level for surveying includes a level body, wherein the level body is fixedly mounted on the top surface of an upper mounting plate, the bottom surface of the upper mounting plate is fixedly connected to the top surface of a middle mounting plate via a plurality of first connecting rods, the middle mounting plate is connected to a lower mounting plate via a leveling mechanism, the leveling mechanism is used to drive the middle mounting plate and the upper mounting plate to remain horizontal, and the edge of the lower mounting plate is connected to a plurality of brackets via a hinge.

[0006] Preferably, the leveling mechanism includes an electric telescopic rod, and a plurality of electric telescopic rods are fixedly provided in a circular array on the edge of the top surface of the lower mounting plate, the telescopic end of the electric telescopic rod is fixedly connected to the lower end of the push rod, the upper end of the push rod is fixedly connected to the bottom surface of the support plate, the top surface of the support plate is fixedly connected to the lower end of the spring, the upper end of the spring is fixedly connected to the end of the adjustment plate, the adjustment plate is fixedly provided on the bottom surface of the middle mounting plate, and the plurality of adjustment plates are arranged in a circular array around the center of the middle mounting plate.

[0007] Preferably, a support column is fixedly provided at the center of the top surface of the lower mounting plate, the top of the support column is connected to the bottom of the connecting column through a universal joint, and the top of the connecting column is fixedly connected to the adjustment plate.

[0008] Preferably, the electric telescopic rod is wirelessly connected to a controller, the controller is used to control the extension and retraction of the electric telescopic rod, and the controller is fixed on the top surface of the lower mounting plate.

[0009] Preferably, an insulating disk is fixedly provided at the center of the top surface of the middle mounting disk, a glass spherical shell is arranged above the insulating disk, a connecting ring is fixedly provided at the edge of the glass spherical shell, a waterproof silicone ring is arranged below the connecting ring, a plurality of screws are arranged at the edge of the glass spherical shell, the screws pass through the connecting ring and the waterproof silicone ring, the screws are threadedly connected to the middle mounting disk, and the glass spherical shell is filled with water and bubbles.

[0010] Preferably, a battery is arranged below the upper mounting plate, the top of the battery is fixedly connected to the bottom surface of the upper mounting plate through a plurality of second connecting rods, the positive electrode of the battery is connected to each electric telescopic rod through a plurality of positive wires, the negative electrode of the battery is connected to the glass ball shell through a first negative wire, the lower end of the first negative wire extends into the glass ball shell, a plurality of second negative wires are arranged below the middle mounting plate, the lower ends of the second negative wires are connected to the electric telescopic rods one-to-one, the upper ends of the second negative wires pass through the middle mounting plate and the insulating plate and extend to the inner edge of the glass ball shell, the second negative wire is fixedly connected to the middle mounting plate and the insulating plate, and the upper ends of the plurality of second negative wires are arranged in a circular array in a one-to-one correspondence with each electric telescopic rod.

[0011] The beneficial effects of the present invention are: The present invention designs a surveying level, controls the opening and closing of the electric telescopic rod by the movement of the bubble in the glass ball shell when tilted, and then automatically adjusts the angles of the middle mounting plate and the upper mounting plate, so that the middle mounting plate and the upper mounting plate are automatically adjusted to a horizontal state, thereby keeping the leveling body horizontal. The adjustment process of the present invention is automatically completed, saving time and labor, and can effectively shorten the entire survey and investigation cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The structure of the present invention is schematically shown Figure 1 ; Figure 2 For the present invention Figure 1 A magnified schematic diagram of part A; Figure 3 The structure of the present invention is schematically shown Figure 2 ; Figure 4 For the present invention Figure 3 A magnified schematic diagram of part B; : Illustration marks: 2, connecting ring; 3, insulating disk; 4, positive wire; 5, electric telescopic rod; 6, second negative wire; 7, controller; 9, bracket; 10, hinge; 11, lower mounting plate; 12, middle mounting plate; 13, upper end; 14, waterproof silicone ring; 15, glass ball shell; 16, first negative wire; 17, screw; 18, upper mounting plate; 19, positive pole; 20, battery; 21, second connecting rod; 22, support column; 23, universal joint; 24, connecting column; 25, push rod; 26, telescopic end; 27, support plate; 28, spring; 29, adjustment plate; 30, negative pole; 31, first connecting rod. DETAILED DESCRIPTION

[0013] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0014] The specific embodiments of the present invention are described below with reference to the accompanying drawings. Example 1

[0015] like Figure 1-4 As shown, a surveying level includes a level body, which is fixed on the top surface of an upper mounting plate 18. The bottom surface of the upper mounting plate 18 is fixedly connected to the top surface of a middle mounting plate 12 via a plurality of first connecting rods 31. The middle mounting plate 12 is connected to a lower mounting plate 11 via a leveling mechanism. The leveling mechanism is used to drive the middle mounting plate 12 and the upper mounting plate 18 to remain horizontal. The edge of the lower mounting plate 11 is connected to a plurality of brackets 9 via a hinge 10.

[0016] Open the bracket 9, place the device on the ground, adjust the angle of the bracket 9 to make the upper mounting plate 18 and the middle mounting plate 12 roughly horizontal, and then make the upper mounting plate 18 and the middle mounting plate 12 completely horizontal through the leveling mechanism. Example 2

[0017] like Figure 1-4 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that: the leveling mechanism includes an electric telescopic rod 5, and a plurality of electric telescopic rods 5 are fixedly arranged in a circular array on the edge of the top surface of the lower mounting plate 11, the telescopic end 26 of the electric telescopic rod 5 is fixedly connected to the lower end of the push rod 25, the upper end of the push rod 25 is fixedly connected to the bottom surface of the support plate 27, the top surface of the support plate 27 is fixedly connected to the lower end of the spring 28, the upper end of the spring 28 is fixedly connected to the end of the adjustment plate 29, the adjustment plate 29 is fixedly arranged on the bottom surface of the middle mounting plate 12, and the plurality of adjustment plates 29 are arranged in a circular array around the center of the middle mounting plate 12.

[0018] A support column 22 is fixedly provided at the center of the top surface of the lower mounting plate 11. The top of the support column 22 is connected to the bottom of the connecting column 24 through a universal joint 23. The top of the connecting column 24 is fixedly connected to the adjustment plate 29. The electric telescopic rod 5 is wirelessly connected to the controller 7. The controller 7 is used to control the extension and retraction of the electric telescopic rod 5. The controller 7 is fixedly provided on the top surface of the lower mounting plate 11. An insulating disk 3 is fixedly provided at the center of the top surface of the middle mounting plate 12. A glass ball shell 15 is provided above the insulating disk 3. A connecting ring 2 is fixedly provided at the edge of the glass ball shell 15. A waterproof silicone ring 14 is provided below the connecting ring 2. A plurality of screws 17 are provided at the edge of the glass ball shell 15. The screws 17 penetrate the connecting ring 2 and the waterproof silicone ring 14. The screws 17 are threadedly connected to the middle mounting plate 12. The glass ball shell 15 is filled with water and bubbles.

[0019] A battery 20 is arranged below the upper mounting plate 18. The top of the battery 20 is fixedly connected to the bottom surface of the upper mounting plate 18 through a plurality of second connecting rods 21. The positive electrode 19 of the battery 20 is connected to each electric telescopic rod 5 through a plurality of positive wires 4. The negative electrode 30 of the battery 20 is connected to the glass ball shell 15 through a first negative wire 16. The lower end of the first negative wire 16 extends into the glass ball shell 15. A plurality of second negative wires 6 are arranged below the middle mounting plate 12. The lower ends of the second negative wires 6 are connected to the electric telescopic rods 5 one by one. The upper ends 13 of the second negative wires 6 penetrate the middle mounting plate 12 and the insulating plate 3 and extend to the inner edge of the glass ball shell 15. The second negative wires 6 are fixedly connected to the middle mounting plate 12 and the insulating plate 3. The upper ends 13 of the plurality of the second negative wires 6 are arranged in a circular array in a one-to-one correspondence with each electric telescopic rod 5.

[0020] The principle of adjusting the level of the upper mounting plate 18 and the middle mounting plate 12 by the leveling mechanism is as follows: take the upper mounting plate 18 and the middle mounting plate 12 slightly tilted to the left as an example (i.e. the upper mounting plate 18 and the middle mounting plate 12 are lower on the left and higher on the right), at this time, the bubble in the glass ball shell 15 is located at the right edge of the glass ball shell 15, so that the upper end 13 of the second negative electrode wire 6 on the right side of the glass ball shell 15 is located in the bubble.

[0021] The positive electrode 19 of the battery 20, the positive wire 4, the electric telescopic rod 5, the second negative wire 6, water, the first negative wire 16, and the negative electrode 30 form a circuit, so that the battery 20 supplies power to the electric telescopic rod 5, and all the electric telescopic rods 5 are started through the controller 7, so that the telescopic end 26 of the electric telescopic rod 5 drives the top rod 25 and the support plate 27 to move upward and slowly compress the spring 28.

[0022] Since the upper end 13 of a second negative wire 6 on the right side of the glass ball shell 15 is located in the bubble, the second negative wire 6 is separated from the water, so that the electric telescopic rod 5 connected to the second negative wire 6 on the right side is powered off and cannot be started.

[0023] Since the electric telescopic rod 5 on the right side is not started, the force on the left side of the middle mounting plate 12 is greater than that on the right side, and the middle mounting plate 12 deflects clockwise, so that the middle mounting plate 12, which was originally lower on the left and higher on the right, returns to a level state, and then the upper mounting plate 18 connected to the middle mounting plate 12 also returns to a level state.

[0024] After the middle mounting plate 12 is restored to horizontal, the bubbles in the glass spherical shell 15 move to the center of the glass spherical shell 15, and the bubbles now separate the lower end of the first negative electrode wire 16 from the water. At this time, all the electric telescopic rods 5 are powered off and the spring 28 is no longer compressed, and the adjustment is completed.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A level for surveying, characterized in that: The level instrument comprises a level body, wherein the level body is fixedly mounted on the top surface of an upper mounting plate (18), the bottom surface of the upper mounting plate (18) is fixedly connected to the top surface of a middle mounting plate (12) via a plurality of first connecting rods (31), the middle mounting plate (12) is connected to a lower mounting plate (11) via a leveling mechanism, the leveling mechanism is used to drive the middle mounting plate (12) and the upper mounting plate (18) to maintain horizontality, and the edge of the lower mounting plate (11) is connected to a plurality of brackets (9) via a hinge (10).

2. A level for surveying according to claim 1, characterized in that: The leveling mechanism comprises an electric telescopic rod (5), a plurality of electric telescopic rods (5) are fixedly arranged in a circular array on the edge of the top surface of the lower mounting plate (11), a telescopic end (26) of the electric telescopic rod (5) is fixedly connected to the lower end of a push rod (25), an upper end of the push rod (25) is fixedly connected to the bottom surface of a support plate (27), a top surface of the support plate (27) is fixedly connected to the lower end of a spring (28), an upper end of the spring (28) is fixedly connected to the end of an adjustment plate (29), the adjustment plate (29) is fixedly arranged on the bottom surface of the middle mounting plate (12), and a plurality of the adjustment plates (29) are arranged in a circular array around the center of the middle mounting plate (12).

3. A surveying level according to claim 2, characterized in that: A support column (22) is fixedly provided at the center of the top surface of the lower mounting plate (11); the top of the support column (22) is connected to the bottom of a connecting column (24) via a universal joint (23); and the top of the connecting column (24) is fixedly connected to an adjustment plate (29).

4. A level for surveying according to claim 3, characterized in that: The electric telescopic rod (5) is wirelessly connected to a controller (7), and the controller (7) is used to control the extension and retraction of the electric telescopic rod (5). The controller (7) is fixedly mounted on the top surface of the lower mounting plate (11).

5. A level for surveying according to claim 4, characterized in that: An insulating disk (3) is fixedly arranged at the center of the top surface of the middle mounting disk (12); a glass spherical shell (15) is arranged above the insulating disk (3); a connecting ring (2) is fixedly arranged at the edge of the glass spherical shell (15); a waterproof silicone ring (14) is arranged below the connecting ring (2); a plurality of screws (17) are arranged at the edge of the glass spherical shell (15); the screws (17) penetrate the connecting ring (2) and the waterproof silicone ring (14); the screws (17) are threadedly connected to the middle mounting disk (12); and the glass spherical shell (15) is filled with water and bubbles.

6. A level for surveying according to claim 5, characterized in that: A battery (20) is disposed below the upper mounting plate (18). The top of the battery (20) is fixedly connected to the bottom surface of the upper mounting plate (18) via a plurality of second connecting rods (21). The positive electrode (19) of the battery (20) is connected to each electric telescopic rod (5) via a plurality of positive wires (4). The negative electrode (30) of the battery (20) is connected to the glass ball shell (15) via a first negative wire (16). The lower end of the first negative wire (16) extends into the glass ball shell (15). The middle mounting plate (18) is connected to the upper mounting plate (18). 2) A plurality of second negative wires (6) are arranged at the bottom, the lower ends of the second negative wires (6) are connected to the electric telescopic rods (5) one by one, the upper ends (13) of the second negative wires (6) penetrate the middle mounting plate (12) and the insulating plate (3) and extend to the inner edge of the glass ball shell (15), the second negative wires (6) are fixedly connected to the middle mounting plate (12) and the insulating plate (3), and the upper ends (13) of the plurality of second negative wires (6) are arranged in a circular array in one-to-one correspondence with each electric telescopic rod (5).

Images