Safe stopping and anti-falling integrated device of construction hoist

Abstract

The utility model relates to the technical field of house building engineering safety, in particular to a safety stopping and anti-falling integrated device of a construction hoist, which comprises a fence, a lifting frame is mounted in the fence, and a hoist body is mounted on the lifting frame. The probability of faults caused by various parts is reduced, the overall reliability is improved, the L-shaped plate is used for safe stopping when normally reaching the lifting position and serves as an anti-falling hook when falling accidentally, the connection problem possibly occurring when an anti-falling mechanism is independently arranged is reduced, the safety guarantee is more stable and reliable, and the safety coefficient is increased. And meanwhile, the L-shaped plate can quickly hook the lifting frame cross beam, and a multi-mechanism synergistic effect is achieved, so that the time from accident discovery to complete braking is greatly shortened, the falling distance of the lifter is effectively reduced, the risk of injury to personnel and equipment caused by falling is remarkably reduced, and more powerful guarantee is provided for house building construction safety.

Description

Technical Field

[0001] This utility model relates to the field of building construction safety technology, specifically to an integrated device for safe stopping and fall prevention of construction hoists. Background Technology

[0002] In building construction projects, construction hoists are crucial equipment for the vertical transportation of personnel and materials, making their safety performance paramount. Traditional construction hoists typically treat safety stopping and fall protection as independent systems. Safety stopping devices are generally simple mechanical structures, such as hooks or pins, which are prone to wear and deformation after prolonged and frequent use, leading to reduced stopping reliability. Furthermore, in practice, construction workers sometimes fail to use safety stopping devices correctly due to negligence, creating potential safety hazards.

[0003] Regarding fall protection, most existing fall arrestors are based on the centrifugal trigger principle, only activating braking when the elevator's accidental fall speed reaches a certain threshold. However, there is a time delay between triggering and complete braking, during which the elevator may still fall a certain distance, potentially causing serious injury to personnel and equipment. Furthermore, independent safety stopping and fall protection systems complicate the elevator's structure, increasing the difficulty and cost of installation and maintenance. A malfunction in any component could affect the safe operation of the entire elevator, even causing accidents and threatening the smooth progress of construction projects and the safety of personnel and property. Therefore, an integrated safety stopping and fall protection device for construction elevators is proposed. Utility Model Content

[0004] In view of this, the present invention provides an integrated device for safe stopping and fall prevention of construction hoists, in order to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of this utility model is implemented as follows: an integrated device for safe stopping and fall prevention of a construction hoist, including a fence, a lifting frame installed inside the fence, a hoist body installed on the lifting frame, a stopping mechanism installed on the top of the hoist body, a fixing plate fixedly connected to one side of the hoist body, a through groove opened on one side of the fixing plate, the stopping mechanism including a U-shaped plate, the U-shaped plate fixedly connected to the top of the hoist body, a groove opened on the top of the U-shaped plate, a stepper motor installed on the top of the U-shaped plate, a lead screw fixedly connected to the output end of the stepper motor, a connecting block threadedly connected to the outer wall of the lead screw, and an L-shaped plate fixedly connected to the bottom of the connecting block.

[0006] More preferably, a fall arrestor is installed on the fixing plate.

[0007] More preferably, the lifting frame is equipped with a rack.

[0008] More preferably, two lifting motors are symmetrically installed on one side of the fixed plate, and the output end of the lifting motor is fixedly connected to a gear, which meshes with the rack.

[0009] More preferably, a connecting plate is fixedly connected to the inner side wall of the U-shaped plate, a guide rod is fixedly connected to one side of the connecting plate, a collar is sleeved on the outer side wall of the guide rod, and the top of the collar is fixedly connected to the L-shaped plate.

[0010] The present invention has the following advantages due to the adoption of the above technical solution:

[0011] This invention reduces the complexity and number of components of the system. Compared with traditional independent systems, it reduces the probability of failure due to numerous components and improves overall reliability. The L-shaped plate serves both as a safe stop when the elevator reaches the normal lifting position and as an anti-fall hook in case of accidental fall. This reduces the connection problems that may occur when setting up an anti-fall mechanism separately, making the safety guarantee more stable and reliable. At the same time, the L-shaped plate can quickly hook onto the lifting frame beam. The coordinated action of multiple mechanisms greatly shortens the time from the discovery of an accident to complete braking, effectively reducing the distance of the elevator's fall and significantly reducing the risk of injury to personnel and equipment caused by falls, providing stronger protection for the safety of building construction.

[0012] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural diagram of the present invention;

[0015] Figure 2 This is a structural diagram of the elevator of this utility model;

[0016] Figure 3 This utility model Figure 2 Another perspective on the structure diagram;

[0017] Figure 4 This is a structural diagram of the docking mechanism of this utility model;

[0018] Figure 5 This is another structural view of the docking mechanism of this utility model.

[0019] Reference numerals: 1. Fence; 2. Lifting frame; 21. Rack; 3. Lifting machine body; 31. Lifting motor; 32. Gear; 33. Fall arrestor; 34. Fixing plate; 35. Through groove; 4. Stopping mechanism; 41. U-shaped plate; 42. Groove; 43. Stepper motor; 44. Lead screw; 45. Connecting block; 46. L-shaped plate; 47. Connecting plate; 48. Collar; 49. Guide rod. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown, this utility model embodiment provides an integrated device for safe stopping and fall prevention of a construction hoist, including a fence 1, a lifting frame 2 installed inside the fence 1, a hoist body 3 installed on the lifting frame 2, a stopping mechanism 4 installed on the top of the hoist body 3, a fixing plate 34 fixedly connected to one side of the hoist body 3, a through groove 35 opened on one side of the fixing plate 34, the stopping mechanism 4 includes a U-shaped plate 41, the U-shaped plate 41 is fixedly connected to the top of the hoist body 3, a groove 42 is opened on the top of the U-shaped plate 41, a stepper motor 43 is installed on the top of the U-shaped plate 41, a lead screw 44 is fixedly connected to the output end of the stepper motor 43, a connecting block 45 is threadedly connected to the outer wall of the lead screw 44, and an L-shaped plate 46 is fixedly connected to the bottom of the connecting block 45.

[0023] In one embodiment, a fall arrestor 33 is installed on the fixed plate 34. Through the setting of the fall arrestor 33, the gear shaft on the fall arrestor 33 is meshed with the rack 21. If the elevator body 3 falls unexpectedly, the gear shaft on the fall arrestor 33 rotates, causing the rotating brake hub to rotate, pushing open the top floating bolt, the two hubs contact each other, the nut compresses the disc spring, the switch pressure arm causes the switch to operate and cut off the power, and the elevator body 3 stops as the friction increases.

[0024] In one embodiment, a rack 21 is installed on the lifting frame 2; through the rack 21, a gear 32 meshes with the rack 21, and the rotation of the gear 32 drives the lifting body 3 to rise and fall.

[0025] In one embodiment, two lifting motors 31 are symmetrically installed on one side of the fixed plate 34. The output end of the lifting motor 31 is fixedly connected to a gear 32, which meshes with the rack 21. Through the setting of the gear 32, the lifting motor 31 drives the gear 32 to rotate, thereby driving the lifting body 3 to rise and fall.

[0026] In one embodiment, a connecting plate 47 is fixedly connected to the inner wall of the U-shaped plate 41, a guide rod 49 is fixedly connected to one side of the connecting plate 47, and a collar 48 is sleeved on the outer wall of the guide rod 49. The top of the collar 48 is fixedly connected to the L-shaped plate 46. With the collar 48, when the L-shaped plate 46 moves, it drives the collar 48 to slide on the guide rod 49, thereby improving the stability of the L-shaped plate 46.

[0027] In operation, the following steps are taken: After the construction personnel enter the elevator body 3, they control the elevator motor 31 through the controller inside the elevator body 3. The elevator motor 31 drives the gear 32 to rotate. The gear 32 meshes with the rack 21. The rotation of the gear 32 drives the elevator body 3 to rise and fall. If an accidental fall occurs during the lifting process, the gear shaft on the fall arrestor 33 rotates, causing the rotating brake hub to rotate, pushing open the top float bolt. The two hubs contact, the nut compresses the disc spring, and the switch arm activates the switch to cut off the power. The elevator body 3 stops as the friction increases. When the lifting position is reached, the stepper motor 43 is started. The stepper motor 43 drives the lead screw 44 to rotate. The lead screw 44 rotates in the connecting block 45, causing the connecting block 45 to slide in the groove 42, thereby moving the L-shaped plate 46. The L-shaped plate 46 passes through the through groove 35 and is suspended above the crossbeam inside the lifting frame 2. If an accidental fall occurs, the L-shaped plate 46 hooks onto the crossbeam of the lifting frame 2 to prevent the elevator body 3 from falling, thus achieving a safe stop.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A construction hoist safety stopping and anti-falling integrated device, characterized in that: The utility model relates to a fence (1), the inside of fence (1) is equipped with lifting frame (2), be equipped with elevator body (3) on lifting frame (2), be equipped with stop mechanism (4) on the top of elevator body (3), one side of elevator body (3) is fixedly connected with fixed plate (34), one side of fixed plate (34) is equipped with through slot (35), stop mechanism (4) includes U-shaped plate (41), U-shaped plate (41) is fixedly connected on the top of elevator body (3), the top of U-shaped plate (41) is equipped with recess (42), U-shaped plate (41) is equipped with step motor (43) on the top, the output of step motor (43) is fixedly connected with lead screw (44), the outer side wall screw thread connection of lead screw (44) is equipped with connecting block (45), the bottom of connecting block (45) is fixedly connected with L-shaped plate (46).

2. The construction elevator safety stopping and falling prevention integrated device according to claim 1, characterized in that: The fixed plate (34) is provided with a fall arrest device (33).

3. The construction elevator safety landing and anti-falling integrated device according to claim 1, characterized in that: The lifting frame (2) is provided with a rack (21).

4. The construction elevator safety landing and anti-falling integrated device according to claim 3, characterized in that: The fixed plate (34) is provided with two lifting motors (31) on one side, and the output of the lifting motor (31) is fixedly connected with a gear (32), and the gear (32) is meshed with the rack (21).

5. The construction elevator safety landing and fall protection integrated device of claim 1, wherein: The inner side wall of the U-shaped plate (41) is fixedly connected with a connecting plate (47), one side of the connecting plate (47) is fixedly connected with a guide rod (49), the outer side wall of the guide rod (49) is sleeved with a sleeve ring (48), and the top of the sleeve ring (48) is fixedly connected with the L-shaped plate (46).

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