A stable line plummet for construction engineering

Abstract

The application relates to the technical field of building engineering, and discloses a stable line plummet for building engineering, which comprises a line plummet body, a winding roller rotatably arranged on the line plummet body, a pull rope wound outside the winding roller, and an elastic winding mechanism arranged on the line plummet body and connected with the winding roller. An overrunning clutch is arranged on the winding roller, an end face gear is mounted on the overrunning clutch, the end face gear is engaged with a driving gear arranged on the line plummet body, and a bidirectional rotation assembly is arranged below the driving gear. The line plummet body is stable when being lowered for use, and the service life of the line plummet body is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of construction engineering technology, and in particular to a stable plumb bob for construction engineering. Background Technology

[0002] A plumb bob is a tool used in construction to check the verticality of objects. However, traditional plumb bobs rely on a string for traction, causing the conical plumb bob to swing during measurement, especially in windy conditions. This not only affects measurement efficiency but also accuracy.

[0003] Based on this, patent CN105424003B discloses a stable plumb bob for construction engineering, relating to the technical field of construction machinery. It includes a traction head, a traction line, and a conical plumb bob body; the traction line is made of Kevlar, with a tubular cross-section, and is internally sealed with a shear-thickening liquid; the upper end of the traction line is connected to the traction head, and the other end is connected to the middle of the upper surface of the conical plumb bob body. This invention, by replacing the traditional traction rope with a traction line filled with shear-thickening material, effectively avoids prolonged swaying of the conical plumb bob body, shortens measurement time, and increases measurement accuracy.

[0004] While the above solution addresses the issue of sinker swaying to some extent, the traction rope, being a key component, is susceptible to damage or prolonged use. In such cases, the shear-thickening fluid inside the traction rope may leak out, significantly reducing its effectiveness and presenting certain drawbacks. Summary of the Invention

[0005] The purpose of this invention is to provide a stable plumb bob for construction engineering, which has a simple structure, is easy to use, and can achieve stability when the plumb bob is lowered into use, while ensuring its service life.

[0006] The present invention adopts the following technical solution: A stable plumb bob for construction engineering includes a plumb bob body, a take-up roller rotatably mounted on the plumb bob body, a pull rope wound around the outside of the take-up roller, and the take-up roller being connected to an elastic take-up mechanism mounted on the plumb bob body; an overrunning clutch is mounted on the take-up roller, an end face gear is mounted on the overrunning clutch, the end face gear meshes with a drive gear mounted on the plumb bob body, and a bidirectional rotating assembly is mounted below the drive gear; In use, as the plumb bob falls, the pull rope drives the take-up roller to rotate. Under this action, the elastic take-up mechanism stores energy, and at this time, the kinetic energy of the plumb bob falling is partially offset by the elastic potential energy of the elastic take-up mechanism. Meanwhile, due to the action of the overrunning clutch, the end face gear does not rotate. When the pull rope wrapped around the take-up roller is completely detached from it, the energy-stored elastic take-up mechanism begins to drive the take-up roller to rotate in the opposite direction, and drives the end face gear to rotate. At this time, the drive gear drives the bidirectional rotating assembly to rotate, further offsetting the kinetic energy of the plumb bob.

[0007] Preferably, the elastic winding mechanism includes a spring box disposed on the bobbin body, a spring spring disposed inside the spring box, and the winding roller is connected to the spring spring.

[0008] Preferably, the top of the spring barrel has an opening, and the free end of the pull cord extends from the opening of the spring barrel.

[0009] Preferably, the free end of the pull rope is provided with a pull ring.

[0010] Preferably, the bidirectional rotating assembly includes a forward gyroscope fixedly disposed below the drive gear, the forward gyroscope being disposed on the drive shaft of the drive gear; the forward gyroscope being rotatably disposed on a fixed axis, the fixed axis being fixedly disposed on the plumb bob body; and a reverse gyroscope being rotatably disposed on the fixed axis, the reverse gyroscope being transmitted to the forward gyroscope via a transmission component.

[0011] Preferably, the transmission component includes a transmission gear rotatably mounted on the fixed axis, the transmission gear being arranged perpendicular to the fixed axis; the transmission gear is disposed between the forward gyroscope and the reverse gyroscope, and meshes with transmission teeth arranged along the circumferential surfaces of the forward gyroscope and the reverse gyroscope.

[0012] Preferably, the plumb bob body is provided with a spherical groove, and a ball bearing is provided in the spherical groove.

[0013] Preferably, the spherical groove is filled with damping oil.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting up an elastic winding mechanism, the present invention can use the elastic potential energy of the plumb bob to offset part of the kinetic energy of the plumb bob as it falls, reducing the sway of the plumb bob; at the same time, by rotating the winding roller, the elastic winding mechanism stores energy, and then drives the winding roller to reverse, which drives the end face gear and drive gear to mesh and transmit power, thereby driving the bidirectional rotating component to rotate, further offsetting the kinetic energy of the plumb bob, ensuring the rapid and stable operation of the plumb bob when it is dropped, and helping to improve construction efficiency; at the same time, the stable structure and cooperation of each transmission mechanism can ensure the service life of the entire plumb bob. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of an embodiment of this application; Figure 2 This is a cross-sectional view of the spring box in an embodiment of this application. Detailed Implementation

[0016] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 2 As shown, the present invention discloses a stable plumb bob for construction engineering, comprising a plumb bob body 1 with a conical bottom. A take-up roller 2 is rotatably mounted on the plumb bob body 1, positioned inside the upper end of the plumb bob body 1. A pull rope 3 is wound around the outside of the take-up roller 2, with one end of the pull rope 3 wound around the take-up roller 2 and the other end extending to the outside of the plumb bob body 1 and connected to a pull ring 4 for easy hanging of the plumb bob body 1. The take-up roller 2 is connected to an elastic winding mechanism mounted on the plumb bob body 1. An output shaft 5 is mounted on the take-up roller 2, and an overrunning clutch 6 is mounted on the output shaft 5. An end face gear 7 is mounted on the overrunning clutch 6, meshing with a drive gear 8 mounted on the plumb bob body 1. A bidirectional rotating assembly is located below the drive gear 8. The bidirectional rotating assembly can rotate in both directions to counteract the kinetic energy of the swaying of the plumb bob body 1, ensuring the stability of the plumb bob body 1.

[0017] Specifically, in use, the pull ring 4 is held and the plumb bob body 1 is thrown downwards. As the plumb bob body 1 falls, the pull rope 3 drives the take-up roller 2 to rotate. The pull rope 3 wrapped around the take-up roller 2 gradually detaches from the take-up roller 2. The elastic take-up mechanism stores energy under the action of the take-up roller 2. At this time, the kinetic energy of the plumb bob body 1 falling is partially offset by the elastic potential energy generated by the elastic take-up mechanism, thereby reducing the sway amplitude of the plumb bob body 1. At the same time, due to the working principle of the overrunning clutch 6, the take-up roller 2 drives the overrunning clutch 6 to rotate freely, and the end face gear 7 does not rotate. When the pull rope 3 wrapped around the take-up roller 2 is completely detached from it, the energy-stored elastic take-up mechanism begins to drive the take-up roller 2 to rotate in the opposite direction. The take-up roller 2 drives the overrunning clutch 6 and the end face gear 7 to rotate. The end face gear 7 meshes with the drive gear 8 to drive the bidirectional rotating assembly to rotate, thereby further offsetting the kinetic energy of the plumb bob body 1 and ensuring the stability of the plumb bob body 1.

[0018] Furthermore, the elastic winding mechanism of this invention includes a spring box 9 disposed on the plumb bob body 1, a mounting post 10 disposed inside the spring box 9, a spring spring 11 disposed on the mounting post 10, and a winding roller 2 connected to the spring spring 11. As the pull rope 3 pulls, driving the winding roller 2 to rotate, energy can be stored in the spring spring 11, facilitating the subsequent offsetting of the kinetic energy generated when the plumb bob body 1 falls and driving the winding roller 2 to reverse. The spring box 9 has an opening at its top, and the free end of the pull rope 3 extends from this opening. In this invention, the pull rope 3 does not need to be completely wound around the winding roller 2; it can be partially wound, ensuring that the spring spring 11 can be stored after the winding roller 2 rotates due to the pull of the pull rope 3.

[0019] Furthermore, the bidirectional rotating assembly of the present invention includes a forward gyroscope 12 fixedly disposed below the drive gear 8, the forward gyroscope 12 being fixedly disposed on the drive shaft 13 of the drive gear 8; one end of the forward gyroscope 12 away from the drive shaft 13 is rotatably disposed on a fixed shaft 14, the fixed shaft 14 being fixedly disposed on the plumb bob body 1; a reverse gyroscope 15 is rotatably disposed on the fixed shaft 14, and the reverse gyroscope 15 and the forward gyroscope 12 are transmitted through a transmission component; during operation, the end face gear 7 meshes with the drive gear 8 to rotate, the drive gear 8 drives the forward gyroscope 12 to rotate forward through the drive shaft 13, and the forward gyroscope 12 drives the reverse gyroscope 12 below it through the transmission component. 5. Reverse rotation reduces the kinetic energy of the plumb bob body 1, ensuring its stability. Specifically, the transmission component includes a transmission gear 16 rotatably mounted on a fixed shaft 14, and the transmission gear 16 is arranged perpendicular to the fixed shaft 14. The transmission gear 16 is positioned between the forward gyroscope 12 and the reverse gyroscope 15. Transmission teeth are arranged along the circumferential direction on the opposite end faces of the forward gyroscope 12 and the reverse gyroscope 15. The transmission gear 16 meshes with the transmission teeth. During operation, the forward gyroscope 12 rotates, driving the transmission gear 16 to rotate through the transmission teeth, and the transmission gear 16 drives the reverse gyroscope 15 to rotate through the transmission teeth on the reverse gyroscope 15.

[0020] Furthermore, the present invention also provides a spherical groove 17 inside the plumb bob body 1, the spherical groove 17 being located below the plumb bob body 1, and a ball bearing 18 being provided inside the spherical groove 17. When the plumb bob body 1 swings under external force or its own action, it is subjected to gravity, and the ball bearing 18 rolls in the spherical groove 17 to offset the sway amplitude of the plumb bob body 1. Preferably, the spherical groove 17 is filled with damping oil, and the interaction between the ball bearing 18 and the damping oil can attenuate the energy of the sway, thereby weakening the kinetic energy of the sway of the ball bearing 18 and further playing a stabilizing role.

[0021] When using this invention, the pull ring 4 is held and the plumb bob body 1 is thrown downwards. Under the action of gravity, the plumb bob body 1 moves downwards. When the plumb bob body 1 moves to near the bottom, the pull rope 3 is pulled out from the spring box 9. The pull rope 3 pulls out and drives the winding roller 2 to rotate. The rotation of the winding roller 2 stores energy in the spring spring 11. Under the action of the overrunning clutch 6, the rotation of the winding roller 2 when the pull rope 3 is pulled out will not drive the end face gear 7 to rotate. Since a considerable part of the kinetic energy of the plumb bob body 1 falling is converted into the elastic potential energy of the spring spring 11, the kinetic energy of the plumb bob body 1 when it falls to near the bottom point is consumed, thereby reducing the possibility of the plumb bob body 1 swaying. Then, the stored energy spring 11 drives the take-up roller 2 to rotate in the opposite direction. The reverse rotation of the take-up roller 2 drives the overrunning clutch 6 to rotate. The rotation of the overrunning clutch 6 drives the end face gear 7 to rotate. The rotation of the end face gear 7 drives the drive gear 8 to rotate. The rotation of the drive gear 8 drives the drive shaft 13 to rotate. The rotation of the drive shaft 13 drives the forward gyroscope 12 to rotate. The rotation of the forward gyroscope 12 drives the transmission gear 16 to rotate. The rotation of the transmission gear 16 drives the reverse gyroscope 15 to rotate. Thus, the stability of the plumb bob body 1 is increased under the gyroscopic action of the forward gyroscope 12 and the reverse gyroscope 15. When the plumb bob body 1 swings under external force or its own action, it is subjected to gravity. The ball bearing 18 rolls in the spherical groove 17. The energy of the swaying is attenuated by the action of the ball bearing 18 and the damping oil, thereby weakening the kinetic energy of the swaying and further playing a stabilizing role.

Claims

1. A stable plumb bob for construction engineering, characterized in that: The system includes a plumb bob body, on which a winding roller is rotatably mounted, and a pull rope is wound around the outside of the winding roller. The winding roller is connected to an elastic winding mechanism mounted on the plumb bob body. An overrunning clutch is mounted on the winding roller, and an end face gear is mounted on the overrunning clutch. The end face gear meshes with a drive gear mounted on the plumb bob body. A bidirectional rotating assembly is located below the drive gear. In use, as the plumb bob body falls, the pull rope drives the winding roller to rotate. The elastic winding mechanism is subjected to force and stores energy under this action. At this time, the kinetic energy of the plumb bob body falling is partially offset by the elastic potential energy of the elastic winding mechanism. Meanwhile, due to the action of the overrunning clutch, the end face gear does not rotate. When the rope wound around the take-up roller is completely detached from it, the energy-storing elastic take-up mechanism begins to drive the take-up roller to rotate in the opposite direction, and drives the end face gear to rotate. At this time, the drive gear drives the bidirectional rotating assembly to rotate, thereby further offsetting the kinetic energy of the plumb bob body.

2. The stable plumb bob for construction engineering according to claim 1, characterized in that: The elastic winding mechanism includes a spring box disposed on the bobbin body, a spring spring disposed inside the spring box, and the winding roller connected to the spring spring.

3. The stable plumb bob for construction engineering according to claim 2, characterized in that: The top of the spring barrel has an opening, and the free end of the pull cord extends from the opening of the spring barrel.

4. The stable plumb bob for construction engineering according to claim 3, characterized in that: The free end of the pull rope is provided with a pull ring.

5. The stable plumb bob for construction engineering according to claim 1, characterized in that: The bidirectional rotating assembly includes a forward gyroscope fixedly disposed below the drive gear, the forward gyroscope being disposed on the drive shaft of the drive gear; the forward gyroscope being rotatably disposed on a fixed axis, the fixed axis being fixedly disposed on the plumb bob body; and a reverse gyroscope being rotatably disposed on the fixed axis, the reverse gyroscope being transmitted to the forward gyroscope via a transmission component.

6. The stable plumb bob for construction engineering according to claim 5, characterized in that: The transmission component includes a transmission gear rotatably mounted on the fixed axis, the transmission gear being arranged perpendicular to the fixed axis; the transmission gear is disposed between the forward gyroscope and the reverse gyroscope, and meshes with transmission teeth arranged along the circumferential surfaces of the forward gyroscope and the reverse gyroscope.

7. The stable plumb bob for construction engineering according to claim 1, characterized in that: The plumb bob body is provided with a spherical groove, and a ball bearing is provided in the spherical groove.

8. The stable plumb bob for construction engineering according to claim 7, characterized in that: The spherical groove is filled with damping oil.

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