Line pendant for building construction

Abstract

The utility model discloses a plumb bob for building construction, relates to the technical field of plumb bobs, and solves the problems that under the gravity action of a plumb bob, the pay-off speed of the plumb bob is too high, so that not only is personnel difficult to control the pay-off length of the plumb bob in time, but also the plumb bob is easy to fall on the ground to be damaged, and defects exist in use. A rotating shaft is rotatably mounted in the wire box, a wire roller is fixedly sleeved outside the rotating shaft in the wire box, a crank is fixedly connected to one end of the rotating shaft outside the wire box, and a plumb bob is mounted on the lower side of the wire box; by installing the speed reduction structure and the friction disc, personnel can conveniently control the plumb bob paying-off length, the plumb bob is prevented from falling to the ground and being damaged due to the too high paying-off speed, by installing the adjusting assembly and the triangular convex teeth, the line roller can be prevented from rotating, and therefore the plumb bob can be conveniently positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of plumb lines, in particular to a plumb line for construction. Background Art

[0002] A plumb bob, also known as a plumb bob, is a conical object made of metal (iron, steel, copper, etc.) and is often used in construction projects. It is mainly used to measure the verticality of an object.

[0003] During use, an existing plumb line sinker is installed with a crank handle for the convenience of retracting and releasing the plumb line. When releasing the plumb line, in order to save time and effort, the personnel usually use the gravity of the plumb line to release the plumb line. However, under the action of the plumb line's gravity, the plumb line is released too fast, which not only makes it difficult for the personnel to control the length of the plumb line released in time, but also easily causes the plumb line to fall to the ground and be damaged, resulting in defects in use. Utility Model Content

[0004] The utility model aims to provide a plumb bob for construction which can slow down the plumb bob line-laying speed, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plumb bob for construction, comprising a wire box, a rotating shaft rotatably installed inside the wire box, a wire roller fixedly sleeved on the outer side of the rotating shaft located inside the wire box, a crank fixedly connected to one end of the rotating shaft located outside the wire box, a plumb bob installed on the lower side of the wire box, and also comprising a friction disk fixedly sleeved on one end of the rotating shaft located inside the wire box, a plurality of triangular convex teeth equidistantly distributed around the circumference of the friction disk fixedly arranged on a side away from the rotating shaft; a deceleration structure, which is the same as decelerating the wire roller pay-off, and the deceleration structure is installed on the side of the friction disk away from the rotating shaft; an adjustment component for moving the deceleration structure, and the adjustment component is installed on the outer side of the deceleration structure.

[0006] Preferably, the deceleration structure comprises a mounting plate installed inside the wire box, a plurality of cams equidistantly distributed in a circumference are mounted on a side of the mounting plate close to the friction plate, and a spacing is reserved between the mounting plate and the friction plate.

[0007] Preferably, a silicone sleeve is fixedly sleeved on the outer side of the cam, and the silicone sleeve is connected to the triangular convex teeth in a movable abutment manner, and the triangular convex teeth can increase the friction between the silicone sleeve and the friction plate.

[0008] Preferably, a limited rotation groove is provided on the mounting plate corresponding to the location where the cam is mounted, and a positioning shaft is fixedly embedded inside the cam, and the positioning shaft can prevent the cam from detaching from the mounting plate.

[0009] Preferably, the cam is rotatably connected to the mounting plate via the limit rotation groove and the positioning shaft, and two symmetrically distributed coil springs are fixedly sleeved on the outer side of the positioning shaft, and the coil springs can drive the cam to rotate.

[0010] Preferably, the outer end of the coil spring is fixedly connected to the mounting plate, and a plurality of limiting strips equidistantly distributed around the circumference are fixedly provided on the outer side of the mounting plate.

[0011] Preferably, the adjustment assembly includes an adjustment bolt installed on a side of the mounting plate away from the friction plate, and one end of the adjustment bolt close to the mounting plate is fixedly connected to a rotating pin, and the adjustment bolt is rotatably connected to the mounting plate via the rotating pin.

[0012] Preferably, the rotating pin is movably embedded in the interior of the mounting disk, a positioning sleeve is movably sleeved on the outer side of the mounting disk, and the positioning sleeve is fixedly connected to the wire box, and the positioning sleeve can limit the rotation of the mounting disk through a limit bar.

[0013] Preferably, a positioning plate is movably fitted on the upper end of the wiring box, and two symmetrically distributed connecting pins are fixedly embedded on the upper end of the wiring box, and the connecting pins can prevent the positioning plate from detaching from the wiring box.

[0014] Preferably, the positioning plate is provided with two symmetrically distributed limiting straight grooves, and the connecting pin is in movably contact with the positioning plate through the limiting straight grooves.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model installs a deceleration structure and a friction plate. The cam in the deceleration structure can limit the rotation angle of the cam under the action of the limit groove, which is beneficial for the deceleration structure to decelerate the line roller when the line roller pays out the line, and does not affect the rotation of the line roller when the line roller is reeling in the line, so that it is convenient for personnel to control the length of the plumb bob to pay out the line, and avoid the plumb bob from falling to the ground and being damaged due to excessively fast payout speed.

[0017] 2. The utility model installs the adjustment assembly and the triangular convex teeth, and rotates the adjustment bolt in the adjustment assembly so that the silicone sleeves of the multiple cams are pressed against the triangular convex teeth of the friction disk, thereby preventing the line roller from rotating, thereby facilitating the positioning of the plumb bob. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 It is a side sectional schematic diagram of the wire box of the utility model;

[0020] Figure 3 It is a side cross-sectional schematic diagram of the deceleration structure and friction disc of the utility model;

[0021] Figure 4 This is a schematic diagram of the deceleration structure and friction disc of the utility model;

[0022] Figure 5 This is a schematic diagram of the deceleration structure and adjustment components of the utility model;

[0023] Figure 6 This is a schematic diagram of the disassembly of the positioning plate and the wire box of the utility model.

[0024] In the figure: 1. wire box; 2. rotating shaft; 3. wire roller; 4. crank; 5. plumb bob; 6. friction plate; 7. deceleration structure; 701. mounting plate; 702. cam; 703. silicone sleeve; 704. limit rotation groove; 705. positioning shaft; 706. coil spring; 707. limit strip; 8. adjustment assembly; 801. adjustment bolt; 802. rotating pin; 803. positioning sleeve; 9. positioning plate; 10. connecting pin; 11. triangular convex tooth. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1

[0027] See also Figure 1 , Figure 2 , Figure 4 The figure shows a plumb bob for construction, comprising a plumb bob 5, a friction disc 6 fixedly sleeved on one end of the shaft 2 located inside the box 1, a plurality of triangular convex teeth 11 equidistantly distributed on the side of the friction disc 6 away from the shaft 2; a deceleration structure 7, which is similar to the deceleration of the line roller 3 when releasing the line; an adjustment component 8, which is used to move the deceleration structure 7, and the adjustment component 8 is installed on the outside of the deceleration structure 7.

[0028] See also Figure 3 The deceleration structure 7 includes a mounting plate 701 installed inside the wire box 1. A plurality of cams 702 equidistantly distributed in a circle are mounted on one side of the mounting plate 701 close to the friction plate 6. A spacing is reserved between the mounting plate 701 and the friction plate 6.

[0029] See also Figure 3 The outer side of the cam 702 is fixedly sleeved with a silicone sleeve 703, and the connection between the silicone sleeve 703 and the triangular convex teeth 11 is a movable abutment. The triangular convex teeth 11 can increase the friction between the silicone sleeve 703 and the friction plate 6. A limited rotation groove 704 is provided on the mounting plate 701 corresponding to the mounting cam 702. A positioning shaft 705 is fixedly embedded inside the cam 702. The positioning shaft 705 can prevent the cam 702 from detaching from the mounting plate 701.

[0030] See also Figure 3 The cam 702 is rotatably connected to the mounting disk 701 through a limiting groove 704 and a positioning shaft 705. Two symmetrically distributed coil springs 706 are fixedly sleeved on the outer side of the positioning shaft 705. The coil springs 706 can drive the cam 702 to rotate. The outer end of the coil spring 706 is fixedly connected to the mounting disk 701. A plurality of limiting strips 707 equidistantly distributed around the circumference are fixedly arranged on the outer side of the mounting disk 701.

[0031] The working principle of being able to slow down the plumb bob pay-off speed: when the line roller 3 rotates to pay off the line, the cam 702 cannot rotate due to the restriction of the limit groove 704, so that the silicone sleeve 703 on the outside of the cam 702 directly contacts and rubs with the multiple triangular convex teeth 11 on the friction disk 6, so that the speed of the friction disk 6 and the line roller 3 is slowed down, so that it is convenient for personnel to control the pay-off length of the plumb bob 5, and avoid the plumb bob 5 from falling to the ground and being damaged due to the excessively fast pay-off speed;

[0032] When the line roller 3 rotates to reel in the line, the friction disc 6 rotates in the opposite direction and contacts the silicone sleeve 703 of the cam 702. At this time, the cam 702 can rotate inside the limit groove 704 under the drive of the triangular convex tooth 11, which can effectively prevent the deceleration structure 7 from affecting the reeling of the line roller 3.

[0033] Embodiment 2

[0034] See also Figure 5 This embodiment further explains Example 1. The adjustment assembly 8 includes an adjustment bolt 801 installed on the side of the mounting plate 701 away from the friction plate 6. The end of the adjustment bolt 801 close to the mounting plate 701 is fixedly connected with a rotating pin 802. The adjustment bolt 801 is rotatably connected to the mounting plate 701 through the rotating pin 802.

[0035] See also Figure 5 , and the rotating pin 802 is movably embedded in the inside of the mounting disk 701, the outer side of the mounting disk 701 is movably sleeved with a positioning sleeve 803, and the connection between the positioning sleeve 803 and the wire box 1 is a fixed connection, and the positioning sleeve 803 can limit the rotation of the mounting disk 701 through the limit bar 707.

[0036] In this embodiment: when the plumb bob 5 needs to be positioned, the personnel rotates the adjusting bolt 801. Under the condition that the adjusting bolt 801 is rotatably connected to the mounting disk 701 through the rotating pin 802, the rotation of the adjusting bolt 801 can drive the mounting disk 701 to move inside the positioning sleeve 803. The mounting disk 701 is driven to approach the friction disk 6 by the adjusting bolt 801 until the silicone sleeve 703 is tightly against the triangular convex tooth 11 and the cam 702 cannot rotate in the limiting groove 704. At this time, the line roller 3 cannot rotate under the action of the deceleration structure 7, which is conducive to positioning the plumb bob 5.

[0037] Embodiment 3

[0038] See also Figure 6 This embodiment further explains other embodiments. Preferably, a positioning plate 9 is movably fitted on the upper end of the wire box 1, and two symmetrically distributed connecting pins 10 are fixedly embedded on the upper end of the wire box 1. The connecting pins 10 can prevent the positioning plate 9 from being separated from the wire box 1. Two symmetrically distributed limiting straight grooves are provided on the positioning plate 9, and the connecting pins 10 are movably contacted with the positioning plate 9 through the limiting straight grooves.

[0039] In this embodiment: after adjusting the height of the plumb bob 5 , the personnel moves the positioning plate 9 to the left, then places the positioning plate 9 on the upper end of the object to be measured, and presses the positioning plate 9 with a brick to fix the wire box 1 .

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plumb bob for construction, comprising a plumb bob (1), a rotating shaft (2) rotatably mounted inside the plumb bob (1), a plumb roller (3) fixedly sleeved on the outer side of the rotating shaft (2) located inside the plumb bob (1), a crank (4) fixedly connected to one end of the rotating shaft (2) located outside the plumb bob (1), a plumb bob (5) mounted on the lower side of the plumb bob (1), characterized in that: Also includes: A friction disc (6) is fixedly sleeved on one end of the rotating shaft (2) located inside the wire box (1), and a plurality of triangular convex teeth (11) are fixedly provided on a side of the friction disc (6) away from the rotating shaft (2) and distributed at equal intervals around the circumference; A deceleration structure (7) is used to decelerate the wire payoff of the wire roller (3), and the deceleration structure (7) is installed on a side of the friction disk (6) away from the rotating shaft (2); An adjustment component (8) is used to move the deceleration structure (7), and the adjustment component (8) is installed on the outside of the deceleration structure (7).

2. A plumb line for construction according to claim 1, characterized in that: The deceleration structure (7) comprises a mounting plate (701) mounted inside the wire box (1), and a plurality of cams (702) equidistantly distributed around a circumference are mounted on a side of the mounting plate (701) close to the friction plate (6).

3. A plumb line for construction according to claim 2, characterized in that: A silicone sleeve (703) is fixedly sleeved on the outer side of the cam (702), and the silicone sleeve (703) and the triangular convex teeth (11) are connected in a movable abutment manner.

4. A plumb line for construction according to claim 3, characterized in that: A limited rotation groove (704) is provided on the mounting plate (701) at a location corresponding to where the cam (702) is mounted, and a positioning shaft (705) is fixedly embedded inside the cam (702).

5. A plumb line for construction according to claim 4, characterized in that: The cam (702) is rotatably connected to the mounting plate (701) via the limiting rotation groove (704) and the positioning shaft (705), and two symmetrically distributed coil springs (706) are fixedly sleeved on the outer side of the positioning shaft (705).

6. A plumb line for construction according to claim 5, characterized in that: The outer end of the coil spring (706) is fixedly connected to the mounting plate (701), and a plurality of limiting strips (707) distributed equidistantly around the circumference are fixedly arranged on the outer side of the mounting plate (701).

7. A plumb line for construction according to claim 2, characterized in that: The adjustment assembly (8) comprises an adjustment bolt (801) mounted on a side of the mounting plate (701) away from the friction plate (6), and a rotating pin (802) is fixedly connected to one end of the adjustment bolt (801) close to the mounting plate (701).

8. A plumb line for construction according to claim 7, characterized in that: The rotating pin (802) is movably embedded in the interior of the mounting plate (701), a positioning sleeve (803) is movably sleeved on the outer side of the mounting plate (701), and the connection between the positioning sleeve (803) and the wire box (1) is a fixed connection.

9. A plumb bob for construction according to claim 1, characterized in that: A positioning plate (9) is movably fitted on the upper end of the wire box (1), and two symmetrically distributed connecting pins (10) are fixedly embedded on the upper end of the wire box (1).

10. A plumb line for construction according to claim 9, characterized in that: The positioning plate (9) is provided with two symmetrically distributed limiting straight grooves, and the connecting pin (10) is in active contact with the positioning plate (9) through the limiting straight grooves.

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