Plumb for building surveying

Abstract

The utility model is applicable to the technical field of plummets, and provides a plumb for building surveying, which comprises an accommodating box and a protective structure, a rotating rod is rotatably connected to an inner cavity of the accommodating box, a wind-up roller is fixedly connected to the surface of the rotating rod, a connecting rope is wound on the surface of the wind-up roller, one end of the connecting rope is fixedly connected with the surface of the wind-up roller, and the other end of the connecting rope is fixedly connected with the surface of the wind-up roller. The other end of the connecting rope can extend out of the containing box in a drawing mode and is fixedly connected with a plumb bob body. According to the plumb bob for building surveying, a worker twists a threaded rod to drive a threaded sleeve to ascend, a taper sleeve can be driven to ascend by utilizing connection of a connecting rod and an L-shaped rod, and after the bottom of the plumb bob body is sleeved with the taper sleeve, a bob point of the plumb bob body can be protected, the bob point of the plumb bob body is prevented from colliding with an external object, and protection on the plumb bob body is improved; the service life of the plumb bob body is prolonged, the measurement precision of the plumb bob body is improved, and building measurement is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of plumb bobs, and particularly relates to a plumb bob for building measurement. Background Art

[0002] In the fields of measurement and construction, a plumb bob is a simple gravity tool used to check whether a surface is vertical or horizontal. A plumb bob is usually a line or string with a heavy weight made of lead or other high-density materials to ensure its stability. When suspended, the plumb bob will remain vertical due to the action of gravity.

[0003] Chinese Patent CN215725968U discloses a plumb bob for building measurement. The technical solution is a plumb bob for building measurement composed of a wire box, a wire winding component, a plumb bob body, and a wire rope. Thus, it is convenient for the staff to wind the wire rope on the building measurement plumb bob onto the wire winding component inside the wire box, so as to facilitate the overall storage of the plumb bob by the staff. And by arranging a wire rope positioning component composed of a mounting plate, a positioning seat, a guide rod, and an adjusting part inside the wire box, the phenomenon of the wire rope becoming loose is avoided, thus facilitating the convenience of the next use of the plumb bob structure.

[0004] However, for this plumb bob for building measurement, during the use process, although the plumb bob can be wound and sorted, it does not have the function of protecting the plumb bob head. During the process of carrying and moving, the plumb bob will collide with the wall of the toolbox or the tools inside the box, and it is easy for the tip of the plumb bob to be damaged due to long-term wear, affecting the use accuracy of the plumb bob and shortening the service life of the plumb bob, which is not conducive to building measurement use. Summary of the Utility Model

[0005] The utility model provides a plumb bob for building measurement, aiming to solve the problem that although the plumb bob for building measurement can be wound and sorted during the use process, it does not have the function of protecting the plumb bob head.

[0006] The utility model is realized as follows: A plumb bob for building measurement includes a receiving box and a protection structure. A rotating rod is rotatably connected to the inner cavity of the receiving box. A winding roller is fixedly connected to the surface of the rotating rod. A connecting rope is wound around the surface of the winding roller, and one end of the connecting rope is fixedly connected to the surface of the winding roller. The other end of the connecting rope can be pulled out and extended to the outside of the receiving box, and is fixedly connected to a plumb bob body.

[0007] The protective structure includes a threaded rod vertically and fixedly connected to one side of the inner cavity of the accommodating box. A threaded sleeve is threadedly connected to the surface of the threaded rod. A connecting rod is vertically and fixedly connected to the surface of the threaded sleeve. The bottom end of the connecting rod can extend below the accommodating box in a drawable manner and is rotatably connected to an L-shaped rod through a damping bearing. The other end of the L-shaped rod is fixedly connected to a tapered sleeve adapted to the plumb bob body. The top end of the threaded rod extends outside the accommodating box, and the front end of the rotating rod extends outside the accommodating box.

[0008] Preferably, a first torsion handle is fixedly connected to the top end of the threaded rod, and a through hole for the connecting rod to be drawn is opened at the bottom of the accommodating box.

[0009] Preferably, a gear is fixedly connected to the surface of the rotating rod. A bolt is arranged on one side surface of the accommodating box. One end of the bolt can rotatably extend into the inner cavity of the accommodating box and is rotatably connected to a rack plate capable of meshing with the gear.

[0010] Preferably, a second torsion handle is fixedly connected to the outer end of the bolt, and the side wall of the rack plate is slidably connected to the inner wall surface of the accommodating box.

[0011] Preferably, a rotating block is fixedly connected to the front end of the rotating rod, and an opening for the connecting rope to be drawn is opened at the bottom of the accommodating box.

[0012] Preferably, a handle is fixedly connected to the top of the accommodating box. A bubble level is horizontally arranged on the front side of the accommodating box, and a magnet is fixedly connected to the bottom of the accommodating box.

[0013] Preferably, a maintenance cover plate is detachably connected to the surface of the accommodating box, and an observation window is arranged on the surface of the maintenance cover plate.

[0014] Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: For a plumb bob for building measurement of the present utility model, when the plumb bob body is not in use, the staff can twist the rotating rod to drive the winding roller to rotate. During the rotation of the winding roller, the connecting rope can be wound, thereby pulling the plumb bob body into contact with the surface of the accommodating box to tidy up the connecting rope. After the staff twists the L-shaped rod, the tapered sleeve can be driven to move below the plumb bob body. Then the staff can twist the threaded rod to drive the threaded sleeve to rise. By using the connection between the connecting rod and the L-shaped rod, the tapered sleeve can be driven to rise. After the tapered sleeve is sleeved on the bottom of the plumb bob body, the tip of the plumb bob body can be protected, avoiding the collision of the tip of the plumb bob body with external objects, improving the protection of the plumb bob body, prolonging the service life of the plumb bob body, improving the measurement accuracy of the plumb bob body, and being beneficial to building measurement. Brief Description of the Drawings

[0016] Figure 1 is a front structural schematic diagram of the present utility model;

[0017] Figure 2 is a front sectional structural schematic diagram of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the accommodation box and the maintenance cover plate in the present utility model.

[0019] In the figure: 1, accommodation box; 2, rotating rod; 3, rotating block; 4, winding roller; 5, connecting rope; 6, plumb bob body; 7, magnet; 8, threaded rod; 9, threaded sleeve; 10, connecting rod; 11, L-shaped rod; 12, tapered sleeve; 13, gear; 14, first torsion handle; 15, rack plate; 16, bolt; 17, second torsion handle; 18, bubble level; 19, handle; 20, maintenance cover plate; 21, observation window. Detailed Embodiment

[0020] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] Please refer to Figures 1-3 , the present utility model provides a technical solution: a plumb bob for building measurement, including an accommodation box 1 and a protection structure. A rotating rod 2 is rotatably connected to the inner cavity of the accommodation box 1, and a winding roller 4 is fixedly connected to the surface of the rotating rod 2.

[0022] One end of a connecting rope 5 is wound around the surface of the winding roller 4 and fixedly connected to the surface of the winding roller 4. The other end of the connecting rope 5 can be drawn out to extend outside the accommodation box 1 and is fixedly connected to a plumb bob body 6.

[0023] The protection structure includes a threaded rod 8. The threaded rod 8 is vertically fixedly connected to one side of the inner cavity of the accommodation box 1. A threaded sleeve 9 is threadedly connected to the surface of the threaded rod 8. A connecting rod 10 is vertically fixedly connected to the surface of the threaded sleeve 9.

[0024] The bottom end of the connecting rod 10 can be drawn out to extend below the accommodation box 1 and is rotatably connected to an L-shaped rod 11 through a damping bearing. The other end of the L-shaped rod 11 is fixedly connected to a tapered sleeve 12 adapted to the plumb bob body 6. The top end of the threaded rod 8 extends outside the accommodation box 1, and the front end of the rotating rod 2 extends outside the accommodation box 1.

[0025] When the plumb bob body 6 is not in use, the staff can twist the rotating rod 2 to drive the winding roller 4 to rotate. During the rotation of the winding roller 4, the connecting rope 5 can be wound, thereby pulling the plumb bob body 6 into contact with the surface of the receiving box 1 to tidy up the connecting rope 5.

[0026] After the staff twists the L-shaped rod 11, the tapered sleeve 12 can be driven to move below the plumb bob body 6. Then the staff can twist the threaded rod 8 to drive the threaded sleeve 9 to rise. By using the connection between the connecting rod 10 and the L-shaped rod 11, the tapered sleeve 12 can be driven to rise. After the tapered sleeve 12 is sleeved on the bottom of the plumb bob body 6, the tip of the plumb bob body 6 can be protected.

[0027] Avoid the tip of the plumb bob body 6 from colliding with foreign objects, improve the protection of the plumb bob body 6, extend the service life of the plumb bob body 6, improve the measurement accuracy of the plumb bob body 6, and facilitate building measurement.

[0028] Furthermore, the top end of the threaded rod 8 is fixedly connected with a first turning handle 14, and the bottom of the receiving box 1 is provided with a through hole for the connecting rod 10 to be pulled out.

[0029] In this embodiment, the first turning handle 14 facilitates the staff to twist the threaded rod 8 to drive the threaded sleeve 9 to move up and down along the surface of the threaded rod 8.

[0030] Furthermore, a gear 13 is fixedly connected to the surface of the rotating rod 2. One side of the receiving box 1 is provided with a bolt 16. One end of the bolt 16 can rotatably extend into the inner cavity of the receiving box 1 and is rotatably connected with a rack plate 15 that can mesh with the gear 13.

[0031] In this embodiment, during the rotation of the rotating rod 2, the gear 13 is driven to rotate together. When the winding of the connecting rope 5 by the winding roller 4 is completed or the release is completed, the second turning handle 17 is twisted to drive the rack plate 15 to move through the bolt 16. When the rack plate 15 meshes with the gear 13, the rotation of the rotating rod 2 can be fixed, and thus the rotation position of the winding roller 4 can be fixed.

[0032] Furthermore, the outer end of the bolt 16 is fixedly connected with a second turning handle 17, and the side wall of the rack plate 15 is slidably connected to the inner wall surface of the receiving box 1.

[0033] In this embodiment, the second turning handle 17 facilitates the staff to twist the bolt 16, and the sliding connection between the rack plate 15 and the receiving box 1 facilitates the guiding and limiting of the rack plate 15 during the movement.

[0034] Furthermore, a rotating block 3 is fixedly connected to the front end of the rotating rod 2, and the bottom of the receiving box 1 is provided with an opening for the connecting rope 5 to be pulled out.

[0035] In this embodiment, the rotating block 3 facilitates the staff to twist the rotating rod 2, which is convenient for controlling the winding state of the connecting rope 5.

[0036] Furthermore, a handle 19 is fixedly connected to the top of the accommodating box 1, a bubble level 18 is horizontally arranged on the front side of the accommodating box 1, and a magnet 7 is fixedly connected to the bottom of the accommodating box 1.

[0037] In this embodiment, the handle 19 facilitates the staff to carry the device and move it, the bubble level 18 is convenient for checking the placement levelness of the accommodating box 1, and the magnet 7 is convenient for fixing when the plumb bob body 6 contacts the surface of the accommodating box 1.

[0038] Furthermore, a maintenance cover plate 20 is detachably connected to the surface of the accommodating box 1, and an observation window 21 is arranged on the surface of the maintenance cover plate 20.

[0039] The working principle and usage process of the present utility model: After the present utility model is installed, when the plumb bob body 6 is not in use, the staff can twist the rotating rod 2 to drive the winding roller 4 to rotate. During the rotation of the winding roller 4, the connecting rope 5 can be wound, thereby pulling the plumb bob body 6 into contact with the surface of the accommodating box 1 to tidy up the connecting rope 5. After the staff twists the L-shaped rod 11, the conical sleeve 12 can be driven to move below the plumb bob body 6. Then the staff can twist the threaded rod 8 to drive the threaded sleeve 9 to rise. By utilizing the connection between the connecting rod 10 and the L-shaped rod 11, the conical sleeve 12 can be driven to rise. After the conical sleeve 12 is sleeved on the bottom of the plumb bob body 6, the tip of the plumb bob body 6 can be protected from colliding with external objects, thus improving the protection of the plumb bob body 6.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A plumb bob for building surveying, comprising a housing box (1) and a protective structure, characterized in that: The inner cavity of the storage box (1) is rotatably connected to a rotating rod (2), the surface of the rotating rod (2) is fixedly connected to a winding roller (4), the surface of the winding roller (4) is wound with a connecting rope (5) with one end fixedly connected to the surface of the winding roller (4), the other end of the connecting rope (5) can be pulled out to the outside of the storage box (1) and is fixedly connected to a plumb body (6); The protective structure comprises a threaded rod (8), wherein the threaded rod (8) is vertically fixedly connected to one side of the inner cavity of the accommodating box (1), the surface of the threaded rod (8) is threadedly connected to a threaded sleeve (9), the surface of the threaded sleeve (9) is vertically fixedly connected to a connecting rod (10), the bottom end of the connecting rod (10) can be pulled out to extend to the bottom of the accommodating box (1), and is rotatably connected to an L-shaped rod (11) via a damping bearing, the other end of the L-shaped rod (11) is fixedly connected to a conical sleeve (12) adapted to the plumb bob body (6), the top end of the threaded rod (8) extends to the outside of the accommodating box (1), and the front end of the rotating rod (2) extends to the outside of the accommodating box (1).

2. A plumb bob for building surveying as claimed in claim 1, characterized in that: The top end of the threaded rod (8) is fixedly connected to a first twist handle (14), and the bottom of the accommodating box (1) is provided with a through opening for the connecting rod (10) to be pulled out.

3. A plumb bob for building measurement as claimed in claim 1, characterized in that: A gear (13) is fixedly connected to the surface of the rotating rod (2), and a bolt (16) is provided on one side of the accommodating box (1), one end of the bolt (16) can be rotatably extended to the inner cavity of the accommodating box (1) and is rotatably connected to a rack plate (15) that can mesh with the gear (13).

4. A plumb bob for building surveying as claimed in claim 3, characterized in that: The outer end of the bolt (16) is fixedly connected to a second twist handle (17), and the side wall of the rack plate (15) is slidably connected to the inner wall surface of the containing box (1).

5. A plumb bob for building surveying as claimed in claim 1, characterized in that: A rotating block (3) is fixedly connected to the front end of the rotating rod (2), and an opening for pulling the connecting rope (5) is provided at the bottom of the containing box (1).

6. A plumb bob for building surveying as claimed in claim 1, characterized in that: A handle (19) is fixedly connected to the top of the containing box (1), a bubble level (18) is laterally arranged on the front side of the containing box (1), and a magnet (7) is fixedly connected to the bottom of the containing box (1).

7. A plumb bob for building surveying as claimed in claim 1, characterized in that: The surface of the containing box (1) is detachably connected with an inspection cover plate (20), and the surface of the inspection cover plate (20) is provided with an observation window (21).

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