Hole protection support capable of being used in turnover mode

Abstract

The invention relates to the technical field of elevator shaft support equipment, in particular to a turnover hole protection support which comprises a steel ceiling truss and an equipment frame, and the top, the left side and the right side of the steel ceiling truss are fixedly connected with the top face, the left side and the right side of the top end of an elevator shaft hole entrance wall through bolts correspondingly; a steel floor truss is arranged at the bottom of the steel ceiling truss in a telescopic mode, and the bottom face, the left side and the right side of the steel floor truss are fixedly connected with the bottom face, the left side and the right side of the bottom end of the elevator shaft entrance wall through bolts correspondingly. According to the opening protection support capable of being recycled, the truss support of a telescopic structure can meet the arrangement requirements of elevator shaft opening inlets of various height specifications, the truss support is matched with the scaffold board which can be automatically winched, retracted and released after being arranged, installation, arrangement, disassembly and recovery of an elevator shaft opening support can be rapidly completed, the automation degree is high, and the flexibility is high; and after being disassembled, the elevator shaft can be recycled in other subsequent elevator shafts, so that the loss of materials is reduced to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator shaft support equipment, in particular to a hole protection support that can be used rotatably. Background Art

[0002] The elevator shaft support is an indispensable safety auxiliary structure during the construction process of a building. During the construction process, the elevator shaft is a vertical cavity. Sometimes there may be a lack of load-bearing, supporting or protective structures. At the same time, a structure that can be grasped during the construction of the elevator shaft is also necessary. Therefore, the elevator shaft support came into being.

[0003] The existing elevator shaft bracket installation layout is basically achieved by manually welding each metal pipe layer by layer in the elevator shaft. The disassembly and assembly process is extremely inconvenient, the operation time is long, the efficiency is low, and there is usually a large amount of material loss.

[0004] In order to solve the above problems, we have made improvements and proposed a reusable hole protection bracket. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a rotatable opening protection bracket, comprising a steel ceiling truss and an equipment rack, wherein the top and left and right sides of the steel ceiling truss are fixedly connected to the top surface and left and right sides of the top of the elevator shaft opening entrance wall by bolts respectively, and the bottom of the steel ceiling truss is telescopically provided with a steel floor truss, and the bottom surface and left and right sides of the steel floor truss are fixedly connected to the bottom surface and left and right sides of the bottom end of the elevator shaft opening entrance wall by bolts respectively, and the back surface and left and right sides of the outside of the equipment rack are fixedly connected to the back surface of the top inside the elevator shaft opening and the left and right sides of the top of the rear end by bolts respectively, and a hoisting roller is rotatably installed on the middle part of the front end of the interior of the equipment rack, and a scaffolding board is movably provided on the surface of the hoisting roller, and the back surface of the scaffolding board is fixedly connected to the back surface of the inner wall of the elevator shaft opening by bolts.

[0007] As a preferred technical solution of the present invention, steel external telescopic trusses are fixedly welded at equal intervals on the bottom surface of the steel ceiling truss, a steel reinforcing truss is fixedly welded on the bottom between two adjacent steel external telescopic trusses, and a steel internal telescopic truss is provided for the internal telescopic operation of each steel external telescopic truss. The bottom of the steel internal telescopic truss is fixedly welded to the top surface of the steel floor truss, and the first steel external telescopic truss on the left end and the first steel external telescopic truss on the right end are respectively close to the left and right sides of the entrance wall of the elevator shaft opening.

[0008] As a preferred technical solution of the present invention, a protective shell is fixedly welded to the upper rear part of the right side of the equipment frame, a DC motor is arranged inside the protective shell, and the right side of the DC motor is fixedly connected to the equipment frame by bolts.

[0009] As a preferred technical solution of the present invention, a transmission bin is opened inside the right end of the equipment frame, a driving sprocket is rotatably installed on the rear end of the left side of the inner wall of the transmission bin, and a driven sprocket is rotatably installed on the front end of the left side of the inner wall of the transmission bin, and the external engaging sleeves of the driving sprocket and the driven sprocket are provided with a transmission chain, and the driving sprocket and the driven sprocket are synchronously connected through the transmission chain, the driven sprocket is coaxially fixedly connected to the winch roller, and the driving sprocket is coaxially fixedly connected to the rotating shaft of the DC motor.

[0010] As a preferred technical solution of the present invention, a first ear plate is fixedly welded to the bottom surfaces of the left and right ends of the equipment frame, a fixing rod is fixedly welded between the two first ear plates, two second ear plates of the same size are fixedly welded to the middle of the fixing rod, and a guide roller is rotatably installed on the rear end between the two second ear plates through a pin shaft.

[0011] As a preferred technical solution of the present invention, iron chains are fixedly welded at equal intervals on the surface of the hoisting roller, and the other end of the iron chain is fixedly connected to the top surface of the first scaffolding board at the top back of the elevator shaft opening, and each of the scaffolding boards is located behind the guide roller.

[0012] As a preferred technical solution of the present invention, hinges are fixedly installed between adjacent scaffolding boards by bolts, steel hooks are fixedly installed on the left and right ends of the front of each scaffolding board by bolts, and a locking rod is detachably provided between the scaffolding board and the entrance of the elevator shaft opening. The front and rear ends of the locking rod are fixedly welded with hanging connecting hooks, and the rear end thereof is connected to the scaffolding board by the connecting hook and the steel hook, and the front end of each locking rod is respectively connected to the steel ceiling truss and the steel floor truss by the connecting hook.

[0013] The beneficial effects of the present invention are as follows: the rotatable opening protection bracket and the telescopic structure truss bracket can adapt to the layout requirements of elevator shaft opening entrances of various height specifications. Combined with the scaffolding that can be automatically hoisted and retracted after arrangement, the installation, arrangement and disassembly and recycling of the elevator shaft opening bracket can be completed quickly. It has a high degree of automation and strong flexibility. After disassembly, it can be rotatably used in other subsequent elevator shafts, which reduces material loss to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the front structure of the external entrance of an elevator shaft opening of a reusable opening protection bracket of the present invention;

[0016] Figure 2 This is a schematic diagram of the back structure of the elevator shaft opening of a reusable opening protection bracket of the present invention;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of an equipment frame of a reusable hole protection bracket of the present invention;

[0018] Figure 4 This is a schematic diagram of a partial cross-sectional structure of a transmission compartment of a reusable hole protection bracket according to the present invention;

[0019] Figure 5 This is a schematic diagram of the left side cross-sectional structure of an elevator shaft opening of a reusable opening protection bracket of the present invention;

[0020] In the figure: 1. Steel ceiling truss; 2. Steel external telescopic truss; 3. Steel reinforcement truss; 4. Steel internal telescopic truss; 5. Steel floor truss; 6. Equipment frame; 7. Winch roller; 8. Protective shell; 9. DC motor; 10. Transmission compartment; 11. Drive sprocket; 12. Driven sprocket; 13. Transmission chain; 14. First ear plate; 15. Fixed rod; 16. Second ear plate; 17. Guide roller; 18. Iron chain; 19. Scaffolding board; 20. Hinge; 21. Steel hook; 22. Locking rod. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1-5 As shown, a rotatable opening protection bracket includes a steel ceiling truss 1 and an equipment frame 6. The top and left and right sides of the steel ceiling truss 1 are fixedly connected to the top surface and left and right sides of the top of the elevator shaft opening entrance wall by bolts respectively. The bottom of the steel ceiling truss 1 is telescopically provided with a steel floor truss 5. The bottom surface and left and right sides of the steel floor truss 5 are fixedly connected to the bottom surface and left and right sides of the bottom end of the elevator shaft opening entrance wall by bolts respectively. The back surface and left and right sides of the outside of the equipment frame 6 are fixedly connected to the back surface of the top inside the elevator shaft opening and the left and right sides of the top of the rear end by bolts respectively. A hoisting roller 7 is rotatably installed in the middle of the front end of the inside of the equipment frame 6. A scaffolding board 19 is movably provided on the surface of the hoisting roller 7. The back surface of the scaffolding board 19 is fixedly connected to the back surface of the inner wall of the elevator shaft opening by bolts.

[0023] The bottom surface of the steel ceiling truss 1 is fixedly welded with steel external telescopic trusses 2 at equal intervals. A steel reinforcing truss 3 is fixedly welded at the bottom between two adjacent steel external telescopic trusses 2. The internal telescopic structure of each steel external telescopic truss 2 is provided with a steel internal telescopic truss 4. The bottom of the steel internal telescopic truss 4 is fixedly welded to the top surface of the steel floor truss 5. The first steel external telescopic truss 2 on the left and the first steel external telescopic truss 2 on the right are respectively close to the left and right sides of the entrance wall of the elevator shaft.

[0024] A protective shell 8 is fixedly welded to the upper rear portion of the right side of the equipment frame 6. A DC motor 9 is provided inside the protective shell 8. The right side of the DC motor 9 is fixedly connected to the equipment frame 6 by bolts.

[0025] A transmission bin 10 is provided inside the right end of the equipment frame 6, and a driving sprocket 11 is rotatably installed on the rear end of the left side of the inner wall of the transmission bin 10, and a driven sprocket 12 is rotatably installed on the front end of the left side of the inner wall of the transmission bin 10. The external engaging sleeves of the driving sprocket 11 and the driven sprocket 12 are provided with a transmission chain 13, and the driving sprocket 11 and the driven sprocket 12 are synchronously driven and connected through the transmission chain 13. The driven sprocket 12 is coaxially fixedly connected to the winch roller 7, and the driving sprocket 11 is coaxially fixedly connected to the rotating shaft of the DC motor 9.

[0026] A first ear plate 14 is fixedly welded to the bottom surfaces of the left and right ends of the equipment frame 6, a fixing rod 15 is fixedly welded between the two first ear plates 14, two second ear plates 16 of the same size are fixedly welded to the middle of the fixing rod 15, and a guide roller 17 is installed on the rear end between the two second ear plates 16 through a pin shaft.

[0027] Iron chains 18 are fixedly welded at equal intervals on the surface of the hoisting roller 7. The other end of the iron chain 18 is fixedly connected to the top surface of the first scaffolding board 19 at the top of the back side of the elevator shaft opening. Each scaffolding board 19 is located behind the guide roller 17.

[0028] Hinges 20 are fixedly installed between each adjacent scaffolding board 19 by bolts, and steel hooks 21 are fixedly installed on the left and right ends of the front of each scaffolding board 19 by bolts. A locking rod 22 is detachably provided between the scaffolding board 19 and the entrance of the elevator shaft. The front and rear ends of the locking rod 22 are fixedly welded with hanging connecting hooks, and the rear end is connected to the scaffolding board 19 by the connecting hook and the steel hook 21. The front end of each locking rod 22 is connected to the steel ceiling truss 1 and the steel floor truss 5 respectively by a connecting hook.

[0029] The equipment size is selected according to the different specifications of the standard elevator shaft.

[0030] Working principle: When arranging, select the corresponding size of the support equipment according to the size of the elevator shaft opening and the opening entrance. First, install the equipment frame 6 to the top of the rear part of the elevator shaft opening. Then start the DC motor 9 to drive the hoisting roller 7 to rotate through the driving sprocket 11, transmission chain 13 and driven sprocket 12, and then start to continuously release the reeled scaffolding board 19. In the initial stage, manually lift the first scaffolding board 19 to the guide roller 17, and then start waiting for all the scaffolding boards 19 to be released. After they are released, use bolts and washers to fix the scaffolding boards 19 to the back wall of the elevator shaft inner wall.

[0031] The above process simultaneously installs the steel floor truss 5 to the bottom of the elevator shaft entrance, and then lifts the steel ceiling truss 1 to the top of the elevator shaft entrance. Nylon cable ties can be used to fix and bind the steel outer telescopic truss 2 and the steel inner telescopic truss 4. This telescopic structure of the truss bracket can adapt to the layout requirements of elevator shaft entrances of various height specifications.

[0032] Finally, the locking rod 22 is extended into the elevator shaft through the reserved hole in the truss structure to complete the connection and locking with the steel hook 21 of the scaffolding board 19 and the truss. Subsequent disassembly only requires reverse operation.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reusable hole protection bracket, comprising a steel ceiling truss (1) and an equipment rack (6), characterized in that: The top and left and right sides of the steel ceiling truss (1) are fixedly connected to the top surface and left and right sides of the top of the elevator shaft entrance wall by bolts respectively; the bottom of the steel ceiling truss (1) is telescopically provided with a steel floor truss (5); the bottom surface and left and right sides of the steel floor truss (5) are fixedly connected to the bottom surface and left and right sides of the bottom end of the elevator shaft entrance wall by bolts respectively; the back surface and left and right sides of the outside of the equipment rack (6) are fixedly connected to the back surface of the top of the inside of the elevator shaft entrance and the left and right sides of the rear end top by bolts respectively; a hoisting roller (7) is rotatably installed in the middle of the front end of the inside of the equipment rack (6); a scaffolding board (19) is movably provided on the surface of the hoisting roller (7); the back surface of the scaffolding board (19) is fixedly connected to the back surface of the inner wall of the elevator shaft entrance by bolts.

2. The reusable hole protection bracket according to claim 1, characterized in that: The bottom surface of the steel ceiling truss (1) is fixedly welded with steel external telescopic trusses (2) at equal intervals, and the bottom between two adjacent steel external telescopic trusses (2) is fixedly welded with a steel reinforcement truss (3). The internal telescopic structure of each steel external telescopic truss (2) is provided with a steel internal telescopic truss (4). The bottom of the steel internal telescopic truss (4) is fixedly welded to the top surface of the steel floor truss (5). The first steel external telescopic truss (2) on the left and the first steel external telescopic truss (2) on the right are respectively close to the left and right sides of the entrance wall of the elevator shaft.

3. The reusable hole protection bracket according to claim 1, characterized in that: A protective shell (8) is fixedly welded to the upper rear portion of the right side of the interior of the equipment frame (6), a DC motor (9) is provided inside the protective shell (8), and the right side of the DC motor (9) is fixedly connected to the equipment frame (6) by bolts.

4. The hole protection bracket that can be used revolvingly according to claim 3 is characterized in that: A transmission compartment (10) is provided inside the right end of the equipment frame (6), a driving sprocket (11) is rotatably mounted on the rear end of the left side of the inner wall of the transmission compartment (10), and a driven sprocket (12) is rotatably mounted on the front end of the left side of the inner wall of the transmission compartment (10), a transmission chain (13) is provided on the outer engaging sleeves of the driving sprocket (11) and the driven sprocket (12), the driving sprocket (11) and the driven sprocket (12) are synchronously connected through the transmission chain (13), the driven sprocket (12) is coaxially fixedly connected to the hoisting roller (7), and the driving sprocket (11) is coaxially fixedly connected to the rotating shaft of the DC motor (9).

5. The reusable hole protection bracket according to claim 1, characterized in that: A first ear plate (14) is fixedly welded to the bottom surfaces of both left and right ends of the equipment frame (6); a fixing rod (15) is fixedly welded between the two first ear plates (14); two second ear plates (16) of the same size are fixedly welded to the middle of the fixing rod (15); a guide roller (17) is rotatably installed at the rear end between the two second ear plates (16) via a pin shaft.

6. The reusable hole protection bracket according to claim 5, characterized in that: Iron chains (18) are fixedly welded at equal intervals on the surface of the hoisting roller (7), and the other end of the iron chain (18) is fixedly connected to the top surface of the first scaffolding board (19) at the top of the back side of the elevator shaft opening, and each scaffolding board (19) is located behind the guide roller (17).

7. The reusable hole protection bracket according to claim 1, characterized in that: A hinge (20) is fixedly installed between each adjacent scaffolding board (19) by bolts, and a steel hook (21) is fixedly installed on the left and right ends of the front of each scaffolding board (19) by bolts. A locking rod (22) is detachably provided between the scaffolding board (19) and the entrance of the elevator shaft. The front and rear ends of the locking rod (22) are fixedly welded with a hanging connecting hook, and the rear end is connected to the scaffolding board (19) through the connecting hook and the steel hook (21), and the front end of each locking rod (22) is connected to the steel ceiling truss (1) and the steel floor truss (5) respectively through the connecting hook.

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