Safety type anti-falling hanging basket for building construction

Abstract

This invention discloses a safety-type fall-prevention suspended platform for construction, comprising a suspended platform and a hoist column; the hoist column is equipped with a drive unit and a braking unit; the drive unit includes a drive belt, tension rollers forming a closed loop at both ends of the drive belt, and a motor providing power, with a mounting base fixedly connected to the drive belt; the braking unit includes a steel cable passing through the mounting base, and a clamping assembly is provided inside the mounting base. When the mounting base descends, the clamping assembly clamps the steel cable and carries it along for transmission. One end of the steel cable is provided with a positioning part, which is used to fix or release the steel cable to transfer power from the drive unit. The positioning part fixes the steel cable, and the mounting base clamps the fixed steel cable to prevent it from falling. This invention meets speed requirements by driving the suspended platform with a belt, and adds a steel cable structure to protect the suspended platform from falling. Even if the belt breaks, braking can still be achieved through the steel cable.

Description

Technical Field

[0001] This invention relates to the field of construction tools technology, specifically a safety-type fall-proof suspended basket for construction. Background Technology

[0002] Suspended platforms are construction machinery used for high-altitude operations in building engineering, such as curtain wall installation and exterior wall cleaning. They are a new type of high-altitude work equipment that can replace traditional scaffolding, reduce labor intensity, improve work efficiency, and is reusable. The use of suspended platforms in construction is gradually becoming a trend.

[0003] In existing technologies, there are generally two types of suspended platforms in the construction field. One type, as mentioned above, is a relatively large outdoor suspended platform device based on the overall building lifting mechanism. This type of equipment is highly safe and technologically mature due to numerous national standards. The other type is used indoors, generally referred to as a suspended platform hoist, used to lift goods or individuals during indoor operations. One type of this suspended platform hoist uses screw drive, which has the advantage of self-locking but the disadvantage of slow speed. The other type uses belt drive, which is faster, but requires a motor brake structure for self-locking, making it relatively less safe. This application aims to improve the belt-driven suspended platform hoist to enhance its fall protection safety. Summary of the Invention

[0004] The purpose of this invention is to provide a safe fall-prevention suspended platform for building construction, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a safety-type fall-proof suspended platform for building construction, comprising a suspended platform and a hoist column;

[0006] The hoist column is equipped with a drive unit and a braking unit;

[0007] The drive unit includes a drive belt, tension rollers installed at both ends of the drive belt to form a closed loop, and a motor that provides power. A mounting base is fixedly connected to the drive belt.

[0008] The braking unit includes a steel cable that passes through the mounting base. The mounting base is equipped with a clamping assembly. When the mounting base descends, the clamping assembly clamps the steel cable and carries it for transmission. One end of the steel cable is equipped with a positioning part, which is used to fix or release the steel cable. When the mounting base is above the hoist column, the drive unit loses power, the positioning part fixes the steel cable, and the mounting base clamps the fixed steel cable to prevent it from falling.

[0009] Preferably, the clamping assembly includes a conduit through which the steel cable passes. Three spheres are embedded on the upper circumference of the conduit. The conduit is clamped in a guide seat. The inner wall of the guide seat corresponding to the position of the spheres has a radially expanding structure. A spring is installed at the bottom of the conduit. When the mounting seat moves downward, the spring presses the conduit against the upper part, and the inner wall of the guide seat squeezes the spheres so that the spheres fix and clamp the steel cable.

[0010] Preferably, the positioning part is provided with a positioning component, which has the same structure as the clamping component. The positioning component is provided with a sliding piece, one end of which is fixedly connected to the bottom of the conduit. The outer side of the sliding piece is in contact with the drive belt. The sliding piece and the mounting seat are located on both sides of the drive belt. When the drive belt on the sliding piece side moves upward, the clamping component releases its clamping of the steel cable. At this time, the mounting seat and the steel cable move downward together.

[0011] Preferably, the mounting base is provided with an outer shell, which surrounds the guide seat, and the guide seat is slidably connected to the inner wall of the outer shell. A braking spring is embedded between the end of the guide seat and the outer shell.

[0012] Preferably, a fixing block is provided at the bottom of the guide seat, and a first connecting rod is connected to the bottom of the fixing block. A vertical connecting rod is hinged to the bottom of the first connecting rod, and a brake rod is hinged to one end of the vertical connecting rod. When the guide seat is subjected to force to overcome the brake spring and slides upward relative to the outer shell, the first connecting rod moves upward. Under the transmission of the vertical connecting rod, the brake rod swings and inserts into the brake groove provided on one side of the brake rod.

[0013] Preferably, the brake lever and the vertical connecting rod are provided in two symmetrical sets.

[0014] Preferably, the end of the brake lever has a wedge tooth structure, and the inner wall of the brake groove is provided with a toothed groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention meets speed requirements by driving the suspended platform with a belt, and adds a steel cable structure to protect the suspended platform from falling. Even if the belt breaks, the steel cable can brake the platform. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of the lifting column of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting base of the present invention;

[0020] Figure 4 This is a schematic diagram of the positioning seat structure of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1 As shown in the figure, the main structure of the suspended platform hoist includes a suspended platform 1 and a hoist column 2.

[0023] Reference Figure 2 As shown, the hoist column 2 is equipped with a drive unit and a braking unit;

[0024] The drive unit includes a drive belt 21, tension rollers that form a closed loop at both ends of the drive belt 21, and a motor that provides power. A mounting base 4 is fixedly connected to the drive belt 21.

[0025] The braking unit includes a steel cable 22 that passes through the mounting base 4. The steel cable 22 can also be fitted with wheels at both ends to form a closed loop. The mounting base 4 is equipped with a clamping assembly. When the mounting base 4 descends, the clamping assembly clamps the steel cable 22 and carries the steel cable 22 for transmission. One end of the steel cable 22 is equipped with a positioning part 3. The positioning part 3 is used to fix or release the steel cable 22. When the mounting base 4 is above the hoist column 2, the driving unit loses power, the positioning part fixes the steel cable 22, and the mounting base 4 clamps the fixed steel cable 22 to prevent it from falling.

[0026] Continue to refer to Figure 3 As shown, the clamping assembly includes a conduit 44 through which the steel cable 22 passes. Three spheres 43 are embedded on the upper circumference of the conduit 44. The conduit 44 is clamped in the guide seat 42. The inner wall of the guide seat 42 corresponding to the position of the spheres 43 has an inner radially downward expanding structure 411. A spring 46 is installed at the bottom of the conduit 44. When the mounting seat 4 moves downward, the spring 46 presses the conduit 44 against the upper part, and the inner wall of the guide seat 42 squeezes the spheres 43 so that the spheres 43 fix and clamp the steel cable.

[0027] Continue to combine Figure 2Analyzing the movement of the suspended platform 1, during upward movement, due to friction, the steel cable 22 pushes the conduit 44 downward, increasing the inner diameter of the guide seat 42. This causes the ball 43 to loosen its restraint on the steel cable 22, resulting in relative sliding between the steel cable 22 and the suspended platform 1. The steel cable 22 acts as a guide, making the suspended platform 1 more stable during lifting. During downward movement, under the influence of friction and spring force, the ball 43 clamps and fixes the steel cable. Therefore, if external force is used to fix the steel cable, the suspended platform 1 will also be limited and fixed.

[0028] In addition, in actual implementation, by adjusting the weight of the basket and the friction between the ball 43 and the steel cable, the basket and the steel cable can be made to creep slowly by gravity under the condition of limit locking, thereby descending.

[0029] Reference Figure 4 As shown, a positioning component is provided inside the positioning part 3. The positioning component has the same structure as the clamping component and is installed facing each other. The positioning component is provided with a slider 31. One end of the slider 31 is fixedly connected to the bottom of the conduit. The outer side of the slider 31 contacts the drive belt 21. The slider 31 and the mounting seat 4 are located on both sides of the drive belt 21. When the drive belt on the side of the slider 31 moves upward, it provides a stable force to the slider 31, maintaining the ball 43 on the conduit 44 in an anti-loosening position. The clamping component releases its clamp on the steel cable 22. At this time, the mounting seat 4 and the steel cable 22 move downward together. As shown in the figure, the slider 31 can be configured as a pawl-like structure, i.e., unidirectional force. During normal operation, when the suspended platform 1 descends, the positioning part 3 is in a relaxed state with respect to the steel cable, and the suspended platform 1 and the steel cable 22 descend together. When the suspended platform 1 ascends, the positioning part 3 clamps the steel cable in a fixed manner, but the suspended platform 1 itself and the steel cable slide, so the fixed steel cable can better play a guiding role. If the belt breaks, the suspended platform 1 will fall immediately. At this time, since the positioning part 3 is not subject to external force, under the action of its own spring and friction, the ball in the positioning part 3 clamps the steel cable 22 in a fixed manner, and the steel cable 22 remains fixed.

[0030] Example 2:

[0031] This embodiment adds a limiting part to the above embodiment, as shown in the reference. Figure 3 As shown, the mounting base 4 is provided with a housing 41, which encloses the guide seat 42. The guide seat 42 is slidably connected to the inner wall of the housing 41. A braking spring is embedded between the end of the guide seat 42 and the housing 41. (Not shown in the figure, but explained in words here) The two force-bearing ends of the braking spring are one against the guide seat 42 and the other against the housing 41. The direction of the spring's deformation is the sliding direction of the guide seat 42. As shown, the guide seat 42 slides vertically, so the braking spring is also vertically positioned. Furthermore, the guide seat 42 needs to overcome the spring's elastic force to slide upwards relative to the housing 41.

[0032] A fixing block 47 is provided at the bottom of the guide seat 42. A first connecting rod 48 is connected to the bottom of the fixing block 47. A vertical connecting rod 49 is hinged to the bottom of the first connecting rod 48. A brake rod 410 is hinged to one end of the vertical connecting rod 49. When the guide seat 42 is subjected to force to overcome the brake spring and slides upward relative to the outer shell 41, the first connecting rod 48 moves upward. Under the transmission of the vertical connecting rod 49, the brake rod 410 swings and inserts into the brake groove 5 provided on one side of the brake rod 410. The brake rod 410 and the vertical connecting rod 49 are provided in two symmetrical sets. The end of the brake rod 410 is a wedge tooth structure. The inner wall of the brake groove 5 is provided with a toothed groove 51.

[0033] It is worth mentioning that, during implementation, the brake groove 5 is installed separately from the belt to avoid interference, or it is separated laterally and longitudinally.

[0034] Referring to the diagram, the specific working principle is as follows: During normal descent, the steel cable 22, due to its degree of freedom, descends along with the mounting base 4. At this time, although the guide seat 42 is under force, it cannot overcome the braking spring. However, if the belt breaks, the guide seat 42, which securely holds the steel cable 22, is subjected to the immense weight of the suspended platform 1, causing the guide seat 42 to overcome the braking spring and slide upwards. This upward sliding of the guide seat 42 triggers the limiting part formed by the linkage mechanism. Referring to the diagram, the hinge points of the aforementioned linkage mechanism are all located on the outer casing, and the output end of the brake lever 410 is inserted into the toothed groove 51 for limiting, thereby improving safety.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety type fall arrest basket for construction work, characterized by: Includes the suspended platform (1) and the hoist column (2); The hoist column (2) is equipped with a drive unit and a braking unit; The drive unit includes a drive belt (21), tension rollers that form a closed loop at both ends of the drive belt (21), and a motor that provides power. A mounting base (4) is fixedly connected to the drive belt (21). The braking unit includes a steel cable (22) that passes through the mounting base (4). The mounting base (4) is equipped with a clamping assembly. When the mounting base (4) moves downward, the clamping assembly clamps the steel cable (22) and carries the steel cable (22) for transmission. One end of the steel cable (22) is equipped with a positioning part (3). The positioning part (3) is used to fix or release the steel cable (22). When the mounting base (4) is above the hoist column (2), the driving unit loses power, the positioning part fixes the steel cable (22), and the mounting base (4) clamps the fixed steel cable (22) to prevent it from falling. The clamping assembly includes a conduit (44) through which the steel cable (22) passes. Three spheres (43) are embedded on the upper circumference of the conduit (44). The conduit (44) is clamped in the guide seat (42). The inner wall of the guide seat (42) corresponding to the position of the spheres (43) has a radially expanding structure. A spring (46) is installed at the bottom of the conduit (44). When the mounting seat (4) moves downward, the spring (46) presses the conduit (44) against the upper part. The inner wall of the guide seat (42) squeezes the spheres (43) so that the spheres (43) fix and clamp the steel cable. The positioning part (3) is equipped with a positioning component. The positioning component has the same structure as the clamping component. The positioning component is equipped with a sliding piece (31). One end of the sliding piece (31) is fixedly connected to the bottom of the cable tube. The outer side of the sliding piece (31) is in contact with the drive belt (21). The sliding piece (31) and the mounting seat (4) are located on both sides of the drive belt (21). When the drive belt on the side of the sliding piece (31) moves upward, the clamping component releases its clamping of the steel cable (22). At this time, the mounting seat (4) and the steel cable (22) move downward together.

2. A safety type fall arrest device for construction work according to claim 1, wherein: The mounting base (4) is provided with an outer shell (41), which encloses the guide seat (42) and the guide seat (42) is slidably connected to the inner wall of the outer shell (41). A brake spring is embedded between the end of the guide seat (42) and the outer shell (41).

3. A safety type fall arrest hoist basket for construction work as claimed in claim 2 wherein: A fixing block (47) is provided at the bottom of the guide seat (42). A first connecting rod (48) is connected to the bottom of the fixing block (47). A vertical connecting rod (49) is hinged to the bottom of the first connecting rod (48). A brake rod (410) is hinged to one end of the vertical connecting rod (49). When the guide seat (42) is subjected to force to overcome the brake spring and slides upward relative to the outer shell (41), the first connecting rod (48) moves upward. Under the transmission of the vertical connecting rod (49), the brake rod (410) swings and inserts into the brake groove (5) provided on one side of the brake rod (410).

4. A safety-type fall-prevention suspended platform for building construction according to claim 3, characterized in that: The brake lever (410) and the vertical link (49) are provided in two symmetrical sets.

5. A safety type fall arrest hoist basket for use in construction, according to claim 4, characterized in that: The end of the brake lever (410) is a wedge tooth structure, and the inner wall of the brake groove (5) is provided with a toothed groove (51).

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