Construction hoist anti-falling combined blocking and protecting device

Abstract

The utility model belongs to construction hoist safety protection technical field, concretely relates to a construction hoist anti -falling combination fender device, including hoist cage, be equipped with upper blocking mechanism and lower blocking mechanism in hoist cage, upper blocking mechanism includes the fender bar that can intercept between the lateral wall of hoist cage or is put away to one side lateral wall, lower blocking mechanism includes the first limiting portion of the lower part of the sliding door of hoist cage and the second limiting portion on the floor of hoist cage, with the sliding door down sliding, first limiting portion combines with second limiting portion and fender stop sliding door horizontally, the utility model provides a construction hoist anti -falling combination fender device, installs two rigid braking protection devices at the bottom of ladder cage door, the middle position respectively, plays the effect of buffer braking when the sudden acceleration of motor, resists the impact of transport tool to the ladder cage door, and the control time is striven for for operating personnel, thereby avoids the major safety accident of high altitude falling to occur.

Description

Technical Field

[0001] This utility model belongs to the field of safety protection technology for construction hoists, and specifically relates to a combination of anti-fall protection devices for construction hoists. Background Technology

[0002] With the rapid advancement of technology, various labor-saving mechanical tools have appeared on construction sites, among which electric wheelbarrows and electric handcarts are widely used for transporting materials. However, while saving labor, these tools also pose safety hazards. The limited education of on-site workers and the inconsistent quality of various electric wheelbarrows further exacerbate the problem. In particular, when construction workers carry electric carts and other tools on construction hoists, improper operation or mechanical malfunctions can cause the motorized tools to suddenly malfunction and crash into or even break through the sliding doors, resulting in serious injuries and property damage. Therefore, it is necessary to design a fall protection device for construction hoists during operation. Utility Model Content

[0003] This invention aims to solve the problem of power tools collided with sliding doors due to operational errors when entering an elevator with personnel.

[0004] This utility model provides the following technical solution: a combination protective device for preventing falls of construction hoists, including a hoist cage, and an upper blocking mechanism and a lower blocking mechanism are provided inside the hoist cage;

[0005] The upper blocking mechanism includes a stop bar capable of intercepting between the side walls of the elevator cage or retracting to one side wall;

[0006] The lower blocking mechanism includes a first limiting part located at the lower part of the sliding door of the elevator cage and a second limiting part located on the floor of the elevator cage. As the sliding door slides downward, the first limiting part and the second limiting part combine to horizontally block the sliding door.

[0007] Furthermore, the upper blocking mechanism also includes a hinged support and a locking seat; the hinged support is fixed on one side wall of the elevator cage, and the locking seat is fixed on the opposite side wall. One end of the stop rod is hinged to the hinged support, and the other end of the stop rod is locked in the locking seat after it is laid flat.

[0008] Furthermore, a stop bar fixing buckle is hinged to the side wall of the elevator cage above the hinged support. After the stop bar is raised, the stop bar fixing buckle is sleeved on the upper end of the stop bar.

[0009] Furthermore, the stop bar fixing buckle includes a hinge and a U-shaped ring. The U-shaped ring is connected to the first leaf of the hinge, and the second leaf of the hinge is connected to the side wall of the elevator cage.

[0010] Furthermore, the first limiting part includes a crossbar and two longitudinal bars; the two longitudinal bars are cantilevered and fixed to the sliding door, and the crossbar is fixed between the cantilevered ends of the two longitudinal bars;

[0011] The second limiting part includes two limiting seats located below the crossbar with the entrance facing upward. As the sliding door slides downward, the crossbar falls into the limiting seats.

[0012] Furthermore, the limiting seat includes two vertical blocks fixed to the floor of the elevator cage, and a horizontal tie rod is connected between the two vertical blocks.

[0013] Furthermore, the hinged support includes a first back plate, a first bottom plate, and two first upright plates. The first bottom plate and the two first upright plates are vertically fixed to the first back plate to form an upward-facing groove. The first back plate is connected to the side wall of the elevator cage by bolts. The two first upright plates have shaft holes, and the stop bar is connected to the pin that passes through the shaft hole.

[0014] Furthermore, the card holder includes a second back plate, a second bottom plate, and two second upright plates. The second bottom plate and the two second upright plates are vertically fixed to the second back plate to form an upward-facing groove. The second back plate is connected to the side wall of the elevator cage by bolts.

[0015] Compared with the prior art, the advantages of this utility model are:

[0016] This utility model provides a combined anti-fall protection device for construction hoists, which installs two rigid braking protection devices at the bottom and middle of the cage door (sliding door). When the motor suddenly accelerates, it plays a buffering braking role, resisting the impact of the transport vehicle on the cage door, and giving the operator time to control the situation, thereby avoiding major safety accidents caused by falls from heights. Attached Figure Description

[0017] Figure 1 A schematic diagram of a combined fall protection device for construction hoists;

[0018] Figure 2 This is a schematic diagram of the lower blocking mechanism;

[0019] Figure 3 This is a schematic diagram showing the upper blocking mechanism in the released state.

[0020] Figure 4 This is a schematic diagram of the upper blocking mechanism in the interception state;

[0021] Figure 5 A schematic diagram of the retaining bar fixing buckle;

[0022] Figure 6 This is a schematic diagram of a hinged support;

[0023] Figure 7 This is a diagram of a booth seating area.

[0024] In the diagram: 1-Elevator cage; 2-Sliding door; 3-Stop bar; 4-First limiting part; 4.1-Horizontal bar; 4.2-Vertical bar; 5-Second limiting part; 5.1-Vertical stop block; 5.2-Horizontal tie rod; 6-Hinged support; 6.1-First back plate; 6.2-First bottom plate; 6.3-First upright plate; 7-Card holder; 7.1-Second back plate; 7.2-Second bottom plate; 7.3-Second upright plate; 8-Stop bar fixing buckle; 8.1-Hinge; 8.2-U-shaped ring. Detailed Implementation

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] like Figure 1 As shown: A combination protective device for preventing falls of a construction hoist, including a hoist cage 1, wherein the hoist cage 1 is provided with an upper blocking mechanism and a lower blocking mechanism;

[0027] The upper blocking mechanism includes a stop bar 3 that can be intercepted between the side walls of the elevator cage 1 or retracted to one side wall;

[0028] The lower blocking mechanism includes a first limiting part 4 located at the lower part of the sliding door 2 of the elevator cage 1 and a second limiting part 5 located on the floor of the elevator cage 1. As the sliding door 2 slides downward, the first limiting part 4 and the second limiting part 5 combine to horizontally block the sliding door 2.

[0029] like Figure 3 , Figure 4 As shown: The upper blocking mechanism also includes a hinged support 6 and a locking seat 7; the hinged support 6 is fixed on one side wall of the elevator cage 1, and the locking seat 7 is fixed on the opposite side wall. One end of the stop rod 3 is hinged to the hinged support 6, and the other end of the stop rod 3 is locked in the locking seat 7 after it is laid flat.

[0030] A stop bar fixing buckle 8 is hinged to the side wall of the elevator cage 1 above the hinged support 6. After the stop bar 3 is raised, the stop bar fixing buckle 8 is fitted onto the upper end of the stop bar 3.

[0031] like Figure 6As shown: The hinged support 6 includes a first back plate 6.1, a first base plate 6.2, and two first upright plates 6.3. The first base plate 6.2 and the two first upright plates 6.3 are vertically fixed on the first back plate 6.1 to form an upward-facing groove. The first base plate 6.2 and the two first upright plates 6.3 are welded to the first back plate 6.1. The first back plate 6.1 is connected to the side wall of the elevator cage 1 by bolts. The two first upright plates 6.3 have shaft holes, and the stop bar 3 is connected to the pin that passes through the shaft hole.

[0032] like Figure 7 As shown: The card holder 7 includes a second back plate 7.1, a second bottom plate 7.2 and two second upright plates 7.3. The second bottom plate 7.2 and the two second upright plates 7.3 are vertically fixed on the second back plate 7.1 to form an upward-facing groove. The second bottom plate 7.2 and the two second upright plates 7.3 are welded to the second back plate 7.1. The second back plate 7.1 is connected to the side wall of the elevator cage 1 by bolts.

[0033] like Figure 5 As shown: The stop bar fixing buckle 8 includes a hinge 8.1 and a U-shaped ring 8.2. The U-shaped ring 8.2 is connected to the first leaf of the hinge 8.1, and the second leaf of the hinge 8.1 is connected to the side wall of the elevator cage 1. First, the U-shaped ring 8.2 is lifted upwards. When the stop bar 3 is retracted, the top end is within the range of the U-shaped ring 8.2. Then, the U-shaped ring 8.2 is lowered and placed around the stop bar 3 to prevent the stop bar 3 from rotating downwards.

[0034] like Figure 2 As shown: The first limiting part 4 includes a horizontal bar 4.1 and two vertical bars 4.2; the two vertical bars 4.2 are cantilevered and fixed on the sliding door 2, and the horizontal bar 4.1 is fixed between the cantilevered ends of the two vertical bars 4.2;

[0035] The second limiting part 5 includes two limiting seats located below the crossbar 4.1 with the entrance facing upward. As the sliding door 2 slides downward, the crossbar 4.1 falls into the limiting seats. The two limiting seats are close to the side walls of the elevator cage 1 and do not affect the entry and exit of personnel and equipment.

[0036] The limiting seat includes two vertical blocks 5.1 fixed to the floor of the elevator cage 1, and a horizontal tie rod 5.2 is connected between the two vertical blocks 5.1.

[0037] The method of using the construction hoist fall arrestor combination protection device is as follows: 1) When using the construction hoist for high-altitude transportation, close the sliding door 2. The crossbar 4.1 of the first limiting part 4 will automatically slide into the groove of the second limiting part 5 as the sliding door 2 closes, forming the first rigid bottom protection; 2) Remove the end of the stop bar 3 that is stored on one side of the hoist cage 1 and place it in the card seat 7 on the other side to form the second rigid waist protection, which plays a buffering and braking role when the motor suddenly accelerates. 3) When there is no material transportation machinery in the hoist, retract the waist stop bar. When the sliding door 2 is opened, the crossbar 4.1 of the first limiting part 4 will separate from the second limiting part 5 as the sliding door 2 rises.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A combination protective device for preventing falls from construction hoists, characterized in that: Includes a hoist cage (1), and the hoist cage (1) is provided with an upper blocking mechanism and a lower blocking mechanism; The upper blocking mechanism includes a stop bar (3) that can intercept between the side walls of the elevator cage (1) or retract to one side wall. The lower blocking mechanism includes a first limiting part (4) located at the lower part of the sliding door (2) of the elevator cage (1) and a second limiting part (5) located on the floor of the elevator cage (1). As the sliding door (2) slides down, the first limiting part (4) and the second limiting part (5) combine to horizontally block the sliding door (2).

2. The construction hoist fall protection device according to claim 1, characterized in that: The upper blocking mechanism also includes a hinged support (6) and a locking seat (7); the hinged support (6) is fixed on one side wall of the elevator cage (1), and the locking seat (7) is fixed on the opposite side wall. One end of the stop rod (3) is hinged to the hinged support (6), and the other end of the stop rod (3) is locked in the locking seat (7) after it is laid flat.

3. The construction hoist fall protection device according to claim 2, characterized in that: A stop bar fixing buckle (8) is hinged to the side wall of the elevator cage (1) above the hinge support (6). After the stop bar (3) is lifted, the stop bar fixing buckle (8) is sleeved on the upper end of the stop bar (3).

4. The construction hoist fall protection device according to claim 3, characterized in that: The stop bar fixing buckle (8) includes a hinge (8.1) and a U-shaped ring (8.2). The U-shaped ring (8.2) is connected to the first leaf of the hinge (8.1), and the second leaf of the hinge (8.1) is connected to the side wall of the elevator cage (1).

5. A combined fall protection device for construction hoists according to claim 1, characterized in that: The first limiting part (4) includes a horizontal bar (4.1) and two vertical bars (4.2); the two vertical bars (4.2) are cantilevered and fixed on the sliding door (2), and the horizontal bar (4.1) is fixed between the cantilevered ends of the two vertical bars (4.2); The second limiting part (5) includes two limiting seats located below the crossbar (4.1) with the entrance facing upward. As the sliding door (2) slides downward, the crossbar (4.1) falls into the limiting seats.

6. A combined fall protection device for a construction hoist according to claim 5, characterized in that: The limiting seat includes two vertical blocks (5.1) fixed on the floor of the elevator cage (1), and a horizontal tie rod (5.2) is connected between the two vertical blocks (5.1).

7. A combined fall protection device for construction hoists according to claim 2, characterized in that: The hinged support (6) includes a first back plate (6.1), a first bottom plate (6.2) and two first upright plates (6.3). The first bottom plate (6.2) and the two first upright plates (6.3) are vertically fixed on the first back plate (6.1) to form an upward-facing groove. The first back plate (6.1) is connected to the side wall of the elevator cage (1) by bolts. The two first upright plates (6.3) have shaft holes, and the stop bar (3) is connected to the pin that passes through the shaft hole.

8. A combined fall protection device for construction hoists according to claim 2, characterized in that: The card holder (7) includes a second back plate (7.1), a second bottom plate (7.2) and two second upright plates (7.3). The second bottom plate (7.2) and the two second upright plates (7.3) are vertically fixed on the second back plate (7.1) to form an upward-facing groove. The second back plate (7.1) is connected to the side wall of the elevator cage (1) by bolts.

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