A road construction leveling instrument bracket

Abstract

The utility model provides a road construction level bracket, which belongs to the technical field of road construction. A road construction level bracket comprises a mounting plate, a bracket is mounted on the bottom of the mounting plate, a level is mounted on the top, and a protective frame is provided on the mounting plate; the bracket comprises a support rod hinged on the mounting plate, an extension rod is sleeved on the support rod, and a counterweight is slidably connected inside the support rod; the protective frame comprises at least two racks sliding in the mounting plate, an annular protective ring is fixed on the end face of one side of the rack close to the level, and a clamping plate for clamping the rack is rotatably connected on the mounting plate. The utility model can make the protective ring surround the level to form a protective layer by pulling out the protective ring, and when the bracket falls, the level can be prevented from contacting the ground and being damaged.

Description

Technical Field

[0001] The utility model belongs to the field of road construction, in particular to a road construction leveling instrument bracket. 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 based on the principle of leveling. The main components are a telescope, a tube level (or compensator), a vertical axis, a base, and a foot screw.

[0003] During road construction, a level is required, which is usually placed on the ground through a bracket. However, due to the complex outdoor environment, the bracket is very easy to fall down in windy weather. After falling, the level will hit the ground, causing it to be damaged. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a road construction leveling instrument bracket.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a road construction leveling instrument bracket, comprising a mounting plate, a bracket is mounted on the bottom of the mounting plate, and a leveling instrument is mounted on the top, characterized in that: a protective frame is provided on the mounting plate;

[0006] The bracket comprises a support rod hinged on the mounting plate, an extension rod is sleeved on the support rod, and a counterweight is slidably connected inside the support rod;

[0007] The protection frame comprises at least two racks sliding in the mounting plate, an annular protection ring is fixed to the end surface of one side of the rack close to the level, and a clamping plate for clamping the rack is rotatably connected to the mounting plate.

[0008] Optionally, the interior of the support rod is hollow, and the counterweight block is located in the hollow of the support rod.

[0009] Optionally, at least two rotating shafts are rotatably connected in the mounting plate, and a wire wheel and a gear are respectively fixed to both ends of the rotating shaft, wherein the wire wheel and the counterweight block are connected together by a pull rope, and the gear and the rack are meshed together.

[0010] Optionally, a threaded column is fixed at the center of the end surface of one side of the mounting plate away from the support rod, and the level is threadedly mounted on the threaded column.

[0011] Optionally, the length of the rack is greater than the length of the level.

[0012] Optionally, the weight of the counterweight block is greater than the weight of the rack and the protective ring.

[0013] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Due to the setting of the protection frame, the protection ring can be pulled out to surround the level to form a protective layer. When the bracket falls, the level can be prevented from contacting the ground and being damaged.

[0015] 2. When the protective ring is pulled out, the counterweight will move to the bottom, causing the overall center of gravity of the bracket to move downward, effectively increasing the stability of the bracket and preventing the bracket from being blown down by the wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model.

[0017] Figure 2 It is the front view of the utility model.

[0018] Figure 3 For this utility model Figure 2 Cross-sectional view along the AA direction.

[0019] Figure 4 For this utility model Figure 2 Cross-sectional view along the BB direction.

[0020] Figure 5 This is a diagram showing the protective frame of the present utility model being raised.

[0021] 10. Mounting plate; 11. Support rod; 12. Extension rod; 13. Level; 14. Threaded column; 15. Protective ring; 16. Clamp plate; 17. Rack; 18. Counterweight; 19. Reel; 20. Gear. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0023] As shown in FIG1-5, a road construction leveling instrument bracket includes a mounting plate 10, a bracket is mounted at the bottom of the mounting plate 10, and a leveling instrument 13 is mounted on the top, characterized in that: a protective frame is provided on the mounting plate 10, a threaded column 14 is fixed at the center of the end surface of one side of the mounting plate 10 away from the support rod 11, and the leveling instrument 13 is threadedly mounted on the threaded column 14;

[0024] The bracket includes a support rod 11 hinged on a mounting plate 10, an extension rod 12 is sleeved on the support rod 11, a counterweight 18 is slidably connected inside the support rod 11, the support rod 11 is hollow inside, and the counterweight 18 is located in the hollow of the support rod 11;

[0025] The protection frame includes at least two racks 17 sliding in the mounting plate 10, and an annular protection ring 15 is fixed to the end face of the rack 17 close to the level 13. A clamping plate 16 is rotatably connected to the mounting plate 10 to clamp the rack 17. The length of the rack 17 is greater than the length of the level 13, and there is a certain damping between the rack 17 and the mounting plate 10 to prevent the protection ring 15 from falling by itself. The weight of the counterweight 18 is greater than the weight of the rack 17 and the protection ring 15, so that the overall center of gravity of the bracket is lower.

[0026] At least two rotating shafts are rotatably connected in the mounting plate 10, and a wire wheel 19 and a gear 20 are fixed at both ends of the rotating shaft respectively, wherein the wire wheel 19 and the counterweight block 18 are connected together by a pull rope, and the gear 20 and the rack 17 are meshed together.

[0027] When in use, install the level 13 and adjust the position of the extension rod 12. When the wind is strong, pull the protective ring 15 to move the rack 17 to the side close to the level 13. When the rack 17 moves, it will drive the gear 20 to rotate. The rotation of the gear 20 drives the wire wheel 19 to rotate. The rotation of the wire wheel 19 can loosen the pulley, so that the counterweight 18 moves to the side away from the mounting plate 10 under the influence of gravity, and the overall center of gravity of the bracket moves downward, which effectively increases the stability of the bracket and prevents the bracket from being blown down by strong winds. Since the protective ring 15 is pulled out, the protective ring 15 surrounds the level 13 to form a protective layer. When the bracket falls down, the level can be prevented from contacting the ground and being damaged. Through double protection, the safety of the level when operating in a windy environment can be effectively avoided.

[0028] When it is necessary to fold up, the protection ring 15 is pressed downward, and the gear 20 drives the wire wheel 19 to tighten the pull rope, so that the counterweight 18 moves up, and the bracket can be completely folded up, which is convenient for storage and transportation of the bracket.

[0029] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A road construction leveling instrument bracket, comprising a mounting plate (10), a bracket mounted at the bottom of the mounting plate (10), and a leveling instrument (13) mounted at the top, characterized in that: The installation plate (10) is provided with a protection frame; The bracket comprises a support rod (11) hinged on a mounting plate (10), an extension rod (12) is sleeved on the support rod (11), and a counterweight (18) is slidably connected inside the support rod (11); The protection frame comprises at least two racks (17) sliding in the mounting plate (10), an annular protection ring (15) is fixed to the end surface of one side of the rack (17) close to the level (13), and a clamping plate (16) for clamping the rack (17) is rotatably connected to the mounting plate (10).

2. A road construction leveling instrument bracket according to claim 1, characterized in that: The interior of the support rod (11) is hollow, and the counterweight block (18) is located in the hollow of the support rod (11).

3. A road construction leveling instrument bracket according to claim 1, characterized in that: At least two rotating shafts are rotatably connected inside the mounting plate (10), and a wire wheel (19) and a gear (20) are respectively fixed to the two ends of the rotating shaft, wherein the wire wheel (19) and the counterweight block (18) are connected together by a pull rope, and the gear (20) and the rack (17) are meshed together.

4. A road construction leveling instrument bracket according to claim 1, characterized in that: A threaded column (14) is fixed at the center of the end surface of one side of the mounting plate (10) away from the support rod (11), and the level (13) is threadedly mounted on the threaded column (14).

5. A road construction leveling instrument bracket according to claim 1, characterized in that: The length of the rack (17) is greater than the length of the level (13).

6. A road construction leveling instrument bracket according to claim 1, characterized in that: The weight of the counterweight (18) is greater than the weight of the rack (17) and the protective ring (15).

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