Safety protection device for edge working beam sill

Abstract

A kind of edge operation beam ridge fixed safety protection device;The device includes clamping assembly and lifting assembly;The edge operation beam ridge fixed safety protection device of the application is supported at the bottom of upper floor slab with lower part standing on ground and clamping on both sides of reverse ridge, and upper part clamping on edge beam;The overall lifting of middle part worm wheel disc cooperating with internal gear rack control device can be used on most floor height;Two ends clamping assembly clamps edge beam and reverse ridge respectively, and middle part lifting supports upper and lower floor slab, with strong stability, can be used as force point of construction personnel safety belt, ensuring the safety of construction personnel.And two pressure plates on each end are provided with two liftable universal wheels, which can be easily pushed when changing position on the same floor, facilitating installation, removal and position changing, and having high safety.

Description

Technical Field

[0001] This invention relates to the technical field of high-rise building construction equipment, and in particular to a safety protection device for fixing beams and sills during edge operations. Background Technology

[0002] Working at heights near edges refers to activities performed on buildings or other high places. This work may involve various tasks at heights such as edges. Due to the risk of falls from heights, a series of safety measures are required, including the use of safety belts, the installation of guardrails, and the use of suspended platforms or scaffolding, to ensure that workers have a stable working platform and protective measures when working at heights, thereby reducing the risk of accidents.

[0003] Existing safety protection measures generally include safety belts, guardrails, and the use of suspended platforms or scaffolding. However, these measures are not easy to change after installation, so a lot of preparation work is required before construction, and they are not easy to dismantle after construction. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a safety protection device for fixing beams and sills at the edge of the work area.

[0005] The technical solution of this invention is: a safety protection device for fixing beams and sills at the edge of an operation, comprising a clamping assembly and a lifting assembly. The lifting assembly includes an outer sleeve, an inner rack, and a worm gear frame. The outer sleeve is fitted over the inner rack. The worm gear frame is located in the middle of the outer sleeve, and a worm gear disc is provided on the worm gear frame. An opening is provided in the middle of the outer sleeve corresponding to the worm gear disc. The inner rack protrudes from the opening. A worm-shaped spiral ring is provided on the surface of the worm gear disc facing the opening. The pitch of the spiral ring matches the tooth spacing of the inner rack. One end of the worm gear frame is fixedly connected to the worm gear disc, and the corner is hinged to the middle of the outer sleeve. The other end extends to the back of the outer sleeve and is provided with a cam. The cam is connected to a handle.

[0006] The clamping assembly includes a support leg, a pressure plate, a rack, a worm gear, a spur gear, and a worm. One end of the support leg is connected to the pressure plate, and the other end is connected to the rack. The rack is inclined relative to the support leg. One end of the worm is connected to a motor drive, and the other end is symmetrically equipped with two worm gears, two spur gears, and two support legs. The worm gears mesh with the worm. The worm gears and spur gears are coaxial. The spur gears and rack on the same side cooperate with each other. A through groove is provided in the middle of the tooth surface of the rack. The width of the groove matches the thickness of the worm gear, and the depth of the groove matches the tooth depth of the spur gear, providing space for the worm gear to rotate without affecting the fit.

[0007] The clamping assembly consists of two parts, located at the end of the lifting assembly and the end of the internal rack, respectively. The clamping and pressing at both ends provide greater strength and stability during operation.

[0008] Preferably, the rack and the support leg form a 135° angle. This angle allows the support leg to extend and retract synchronously during clamping and releasing.

[0009] Preferably, the internal rack is hollow and houses a motor C, which engages with a clamping assembly connected to the internal rack. This ensures that the positional relationship between the motor and the lifting assembly remains unchanged during the lifting process, maintaining the original connection.

[0010] Preferably, the outer sleeve is provided with a limiting plate inside, and a motor B is mounted on the limiting plate; a clamping assembly located at the end of the outer sleeve is correspondingly connected to the motor. The limiting plate not only provides a mounting surface for the motor B, but also limits the lifting and lowering of the inner rack, preventing the inner rack from colliding with the motor B when it retracts.

[0011] Preferably, bearings are fitted at both ends of the worm. The bearings at both ends restrict the radial movement and axial sliding of the worm.

[0012] Preferably, the pressure plate has two hollow cylindrical protrusions on its upper part; a motor and a guide sleeve are installed inside the hollow protrusions of the pressure plate, and a caster wheel is connected to the outside of the closed end of the guide sleeve.

[0013] Preferably, the motor extends with a drive shaft, which is threaded; the guide sleeve is a cylindrical shape with one end open and the other closed, and the inside of the guide sleeve is threaded to match the rotating shaft of the motor. The drive shaft of the motor and the guide sleeve cooperate with each other to enable the casters on the guide sleeve to rise and fall, and the hollow protrusion allows the casters to be completely retracted into the pressure plate.

[0014] The beneficial effects of this invention are as follows: The safety protection device for fixing beams and sills at the edge of the work area is positioned on the ground at the bottom and clamped to both sides of the sill, while the upper part is clamped to the edge beam and supported at the bottom of the upper floor slab. The worm gear disc in the middle, in conjunction with the internal rack and pinion control device, controls the overall lifting and lowering, making it applicable to most floor heights. The clamping components at both ends clamp the edge beam and the sill respectively, and the lifting support in the middle provides strong stability for both the upper and lower floor slabs. It can also be used as a stress point for the safety belts of construction workers, ensuring their safety. Furthermore, each pressure plate at both ends is equipped with two liftable casters, allowing for easy movement when changing positions on the same floor, facilitating installation, removal, and relocation, while also ensuring high safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the safety protection device for fixing beams and sills at the edge of the work area according to the present invention. Figure 1 ;

[0016] Figure 2 This is a front view of the safety protection device for fixing beams and sills at the edge of the work area according to the present invention;

[0017] Figure 3 This is a bottom view of the safety protection device for fixing beams and sills at the edge of the work area according to the present invention;

[0018] Figure 4 yes Figure 2 AA section view;

[0019] Figure 5 yes Figure 3 BB cross-sectional view;

[0020] Figure 6 yes Figure 5 Enlarged view of section I;

[0021] Figure 7 This is a schematic diagram of the worm gear carrier structure;

[0022] Figure 8 yes Figure 7 Schematic diagram of the worm gear;

[0023] Figure 9 This is a schematic diagram of the structure of gears and worm gears;

[0024] Figure 10 yes Figure 9 The main view;

[0025] Figure 11 yes Figure 10 CC section view;

[0026] In the diagram: 1. Outer sleeve, 2. Inner rack, 3. Worm gear frame, 31. Worm gear disc, 32. Handle, 33. Motor A, 41. Support leg, 411. Rack, 412. Pressure plate, 413. Caster wheel, 414. Lifting motor, 415. Guide sleeve, 42. Worm gear, 43. Worm, 431. Motor B, 432. Motor mounting plate, 433. Motor C, 44. Housing, 5. Bearing. Implementation

[0027] Example 1: See Figures 1-11 A safety protection device for fixing beams and sills at the edge of an operation includes a clamping assembly and a lifting assembly. The lifting assembly includes an outer sleeve 1, an inner rack 2, and a worm gear frame 3. The outer sleeve 1 is fitted over the inner rack 2. The worm gear frame 3 is located in the middle of the outer sleeve 1, and a worm gear disk 31 is provided on the worm gear frame 3. An opening is provided in the middle of the outer sleeve 1 corresponding to the position of the worm gear disk 31. The inner rack 2 protrudes from the opening. A worm-shaped spiral ring is provided on the surface of the worm gear disk 31 facing the opening. The pitch of the spiral ring matches the tooth spacing of the inner rack 2. When the worm gear disk 31 rotates, it can drive the inner rack 2 to rise and fall synchronously. One end of the worm gear frame 3 is fixedly connected to the worm gear disk 31, and the corner is hinged to the middle of the outer sleeve 1. The other end extends to the back of the outer sleeve and is provided with a cam. The cam is connected to a handle 32.

[0028] The clamping assembly includes a support leg 41, a pressure plate 412, a rack 411, a worm gear 42, a spur gear, a motor, and a worm 43. One end of the support leg 41 is connected to the pressure plate 412, and the other end is connected to the rack 411. The rack 411 is inclined relative to the support leg 41. One end of the worm 43 is connected to the motor drive, and the other end is symmetrically equipped with two worm gears 42, two spur gears, and two support legs 41. The worm gears 42 and the worm 43 mesh with each other. The worm gears 42 and the spur gears are coaxially arranged. The worm gears 42 are located in the middle, with identical spur gears on the top and bottom, and the teeth of the two spur gears correspond one-to-one. The spur gears on the same side and the rack 411 cooperate with each other, enabling the power transmitted by the worm 43 to be transmitted to the support leg 41. The rack 411 has a through groove in the middle of its tooth surface, and the groove width matches the thickness of the worm gear 42. The rack 411 has a through groove in the middle, the depth of which matches the tooth depth of the spur gear, providing space for the worm gear 42 to rotate without affecting the fit.

[0029] There are two clamping components, located at the end of the lifting assembly and the end of the inner rack 2, respectively. Simultaneous clamping and pressing from both ends provides greater strength and stability during operation.

[0030] The rack 411 and the support leg 41 form a 135° angle. This angle allows the support leg 41 to extend and retract synchronously during clamping and releasing.

[0031] The internal rack 2 is hollow and houses a motor C 433, which engages with a clamping assembly connected to the internal rack 2. This ensures that the positional relationship between the motor and the lifting assembly remains unchanged during the lifting process, maintaining the original connection and engagement.

[0032] The outer sleeve 1 is provided with a limiting plate inside, and a motor B 431 is mounted on the limiting plate; a clamping assembly located at the end of the outer sleeve 1 is correspondingly connected to the motor. The limiting plate not only provides a mounting surface for the motor B 431, but also limits the lifting and lowering of the inner rack 2, preventing the inner rack 2 from colliding with the motor B 431 when it retracts.

[0033] Bearings 5 ​​are fitted at both ends of the worm 43. The bearings 5 ​​at both ends can limit the radial movement and axial sliding of the worm 43.

[0034] The pressure plate 412 has two cylindrical protrusions on its upper part, and the protrusions are hollow. The lifting motor 414 and the guide sleeve 415 are installed inside the hollow protrusions of the pressure plate 412. The closed end of the guide sleeve 415 is connected to the outside of the universal wheel 413.

[0035] The lifting motor 414 has a drive shaft extending out, which is threaded. The guide sleeve 415 is a cylindrical shape with one end open and the other closed, and the inside of the guide sleeve 415 is threaded to match the rotating shaft of the lifting motor 414. The drive shaft of the lifting motor 414 and the guide sleeve 415 cooperate with each other to enable the universal wheel 413 on the guide sleeve 415 to rise and fall, and the hollow protrusion allows the universal wheel 413 to be completely retracted into the pressure plate 412.

[0036] ① Move the device to the required position. Control the lifting motor 414 to extend the casters 413, and then push the device to the required installation position;

[0037] ② Clamping the reverse curb. By controlling the rotation of motor B 431, under the combined action of worm gear 42, worm 43 and rack 411, the two support legs 41 will gradually open. After opening to a certain extent, control the lifting motor 414 to retract the caster wheel 413 into the pressure plate 412, then place the two support legs 41 on both sides of the reverse curb, and then control motor B 431 to clamp and fix the reverse curb.

[0038] ③ Clamp the side beam. First, press the handle 32 to make the worm gear 31 mesh with the internal rack 2. Then, control the motor A 33 to drive the worm gear 31 to rotate, so that the internal rack 2 extends upward until the clamping component above contacts the side beam. By controlling the rotation of the motor C 433, under the combined action of the worm gear 42, worm 43 and rack 411, the two support legs 41 will gradually open. After opening to a certain extent, place the two support legs 41 on both sides of the side beam, and then control the motor C 433 to clamp and fix the side beam.

[0039] ④ Support the upper and lower floor slabs. Press the handle 32 to control the motor A 33 to drive the worm gear 31, and the internal rack 2 continues to extend upward, so that the pressure plate 412 of the upper clamping assembly presses against the upper floor slab;

[0040] At this point, the device is clamped both above and below, pressing against the upper floor slab and the ground respectively, allowing workers to attach their safety belts and ensuring their safety.

[0041] When disassembly is required, loosen handle 32, then control motor C 433 to loosen the upper clamping assembly. The rack 411 will retract into the outer sleeve 1 by its own weight, and the end of the inner rack 2 that is not connected to the clamping assembly will fall onto the motor mounting plate 432 inside the outer sleeve 1. Then control motor B 431 to open the lower clamping assembly, and the entire device can be disassembled. Then control lifting motor 414 to extend the caster wheel 413, and the position can be changed.

Claims

1. A safety protection device for fixing beams and sills at the edge of work, comprising a clamping assembly and a lifting assembly, characterized in that: The lifting assembly includes an outer sleeve, an inner rack, and a worm gear frame. The outer sleeve is fitted over the inner rack. The worm gear frame is located in the middle of the outer sleeve, and a worm gear disc is mounted on the worm gear frame. An opening is provided in the middle of the outer sleeve corresponding to the worm gear disc. The inner rack protrudes from the opening. A worm-shaped spiral ring is provided on the surface of the worm gear disc facing the opening. The end face spacing of the spiral ring matches the tooth spacing of the inner rack. One end of the worm gear frame is fixedly connected to the worm gear disc, and the corner is hinged to the middle of the outer sleeve. The other end extends to the back of the outer sleeve and is provided with a cam. The cam is connected to a handle. The clamping assembly includes a support leg, a pressure plate, a rack, a worm gear, a spur gear, a motor, and a worm. One end of the support leg is connected to the pressure plate, and the other end is connected to the rack. The rack is inclined relative to the support leg. One end of the worm is driven by the motor, and the other end has two worm gears and two support legs symmetrically arranged. The worm gears mesh with the worm. The worm gears are coaxial with the spur gears. The spur gears and rack on the same side cooperate with each other. There are two clamping components, which are respectively located at the end of the lifting component and the end of the internal rack; The internal rack is hollow and contains a motor C, which is connected to a clamping assembly. The outer sleeve has a limiting plate inside, and a motor B is installed on the limiting plate; the clamping assembly at the end of the outer sleeve is connected to the motor B.

2. The safety protection device for fixing beams and sills for edge operations according to claim 1, characterized in that: The rack and the support leg form an angle of 135°.

3. The safety protection device for fixing beams and sills at the edge of the work area according to claim 1, characterized in that: Bearings are fitted at both ends of the worm gear.

4. The safety protection device for fixing beams and sills for edge operations according to claim 1, characterized in that: The pressure plate has two hollow cylindrical protrusions on its upper part. The hollow protrusion of the pressure plate houses the lifting motor and guide sleeve, and the closed end of the guide sleeve is connected to the outside with casters.

5. The safety protection device for fixing beams and sills for edge operations according to claim 4, characterized in that: The lifting motor has a rotating shaft extending out, and the rotating shaft is provided with threads; the guide sleeve is a cylindrical shape with one end open and the other end closed, and the inside of the guide sleeve is provided with threads that match the extending shaft of the lifting motor.

Images