Anti-falling frame for truss bridge erecting machine

Abstract

The utility model discloses a kind of anti-falling frames for truss bridge erecting machine, it is related to truss bridge erecting machine technical field, and it includes: anti-falling platform;Anti-falling guard frame is vertically arranged in one side of anti-falling platform;Anti-falling guard frame inside is equipped with the ladder stand connected with the import of anti-falling platform;Anti-falling platform bottom is equipped with the storage type anti-falling protection mechanism for connecting and positioning with the support on truss bridge erecting machine, when carrying out early installation work, anti-falling guard frame is installed on truss bridge erecting machine by bolt, then construction personnel can be through operation switch, so that winding motor operates, drive winding shaft rotates, winding shaft drives winding disc to release anti-falling positioning rope, construction personnel hold limiting block, anti-falling positioning rope is pulled out, after anti-falling positioning rope is wound on the support of truss bridge erecting machine, finally through the restriction component on anti-falling positioning rope firmly fixed on the support of truss bridge erecting machine, when subsequent dismounting, it can be directly wound through winding motor, effectively improve the convenience of recycling preparation work.

Description

Technical Field

[0001] This utility model relates to the field of truss-type bridge erecting machine technology, and more specifically to a fall arrestor for a truss-type bridge erecting machine. Background Technology

[0002] A truss-type bridge erecting machine is a large-scale mechanical device used in bridge construction, primarily for the hoisting, transportation, and installation of precast bridge segments. Its core feature is the use of a truss structure as the main support, offering advantages such as high strength, large span, and high stability.

[0003] The temporary frame structure used for construction operations on existing truss bridge erecting machines is connected to the machine's support structure via connectors or ropes to improve safety, which makes subsequent recovery and maintenance work inconvenient. Utility Model Content

[0004] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0005] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a fall arrestor for a truss-type bridge erecting machine.

[0006] To achieve the above objectives, the technical solution of this utility model is: a fall arrestor for a truss-type bridge erecting machine, comprising: a fall arrestor platform;

[0007] The fall arrestor frame is vertically installed on one side of the fall arrestor platform, and the ends of the fall arrestor frame extend to form a guardrail structure that surrounds the fall arrestor platform.

[0008] The inner side of the fall arrestor frame is equipped with a ladder that connects to the entrance of the fall arrestor platform, and the outer wall of the fall arrestor frame is equipped with several bolt holes for fixing the bracket of the truss-type bridge erecting machine.

[0009] The bottom of the fall arrest platform is equipped with a retractable fall arrest protection mechanism for connection and positioning with the support on the truss-type bridge erecting machine. The retractable fall arrest protection mechanism includes a downward-facing storage slot, with a cover plate fixedly sealed at the opening of the storage slot. A winding shaft rotates vertically on the inner wall of the top surface of the storage slot, and a winding reel is connected to the winding shaft. A winding motor that drives the winding shaft to rotate is provided above the storage slot. A fall arrest positioning rope is wound on the winding reel. The cover plate has at least one protrusion. One end of the fall arrest positioning rope is fixed to the winding reel, and the other end extends through the protrusion and is provided with a limiting block. Several limiting components are provided at intervals on the outer wall of the fall arrest positioning rope.

[0010] As a preferred option, the bottom of the fall arrestor platform is also equipped with a battery to power the winding motor.

[0011] Preferably, the guardrail structure is equipped with a switch to control the operation of the winding motor.

[0012] Preferably, the limiting component is a bolt-type clamp, which is installed on the outer wall of the fall arrest positioning rope by means of bolts.

[0013] Preferably, the fall arrest platform and the fall arrest frame are connected by either welding or bolting.

[0014] As a preferred option, the fall arrestor rope is one of the following: nylon rope, flexible steel wire rope, or aramid rope.

[0015] Preferably, the area of ​​the limiting block is larger than the area of ​​the protrusion.

[0016] Preferably, the outer wall of the limiting block has a groove for easy gripping.

[0017] The beneficial effects of this utility model are as follows: During the initial installation work, the fall arrestor frame is installed on the truss-type bridge erecting machine with bolts. Then, the construction personnel can operate the switch to make the winding motor run, drive the winding shaft to rotate, and the winding shaft drives the winding reel to release the fall arrestor positioning rope. The construction personnel hold the limit block and pull out the fall arrestor positioning rope. After the fall arrestor positioning rope is wound around the support of the truss-type bridge erecting machine, it is finally firmly fixed to the support of the truss-type bridge erecting machine by the limiting component on the fall arrestor positioning rope. During subsequent disassembly and assembly, it can be directly wound up by the winding motor, which effectively improves the convenience of recycling and preparation work. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a fall arrestor for a truss-type bridge erecting machine according to the present invention;

[0019] Figure 2 This is a side view of the anti-fall frame for a truss-type bridge erecting machine according to the present invention.

[0020] Figure 3 This is a cross-sectional structural diagram of a fall arrestor platform.

[0021] Figure 4 A schematic diagram of the limiting components on the fall arrestor positioning rope.

[0022] Attached reference numerals: Fall protection platform-1, Fall protection frame-2, Ladder-21, Storage slot-11, Cover plate-12, Rewinding shaft-13, Rewinding reel-14, Rewinding motor-15, Fall protection positioning rope-16, Extension opening-17, Limiting block-18. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-4 This utility model provides a fall arrestor for a truss-type bridge erecting machine, including: a fall arrestor platform 1;

[0026] The fall arrestor frame 2 is vertically installed on one side of the fall arrestor platform 1. The ends of the fall arrestor frame 2 extend and form a guardrail structure that surrounds the fall arrestor platform 1. The inner side of the fall arrestor frame 2 is provided with a ladder 21 that connects to the entrance of the fall arrestor platform 1, which helps construction workers to climb. The outer wall of the fall arrestor frame 2 is provided with several bolt holes for fixing the bracket of the truss-type bridge erecting machine.

[0027] The bottom of the fall arrest platform 1 is equipped with a retractable fall arrest protection mechanism for connection and positioning with the support on the truss-type bridge erecting machine. The retractable fall arrest protection mechanism includes a downward-facing storage groove 11, with a cover plate 12 fixedly closed at the opening of the storage groove 11. A winding shaft 13 is vertically rotatable on the inner wall of the top surface of the storage groove 11. A winding reel 14 is connected to the winding shaft 13. A winding motor 15 is provided above the storage groove 11 to drive the winding shaft 13 to rotate. A fall arrest positioning rope 16 is wound on the winding reel 14. The cover plate 12 has at least one protrusion 17. One end of the fall arrest positioning rope 16 is fixed to the winding reel 14, and the other end extends through the protrusion 17 and is provided with a limiting block 18. Several limiting components 161 are provided at intervals on the outer wall of the fall arrest positioning rope 16. A switch for controlling the operation of the winding motor 15 is provided on the guardrail structure.

[0028] During the initial installation, the fall arrestor frame 2 is bolted to the truss-type bridge erecting machine. Then, the construction personnel can operate the switch to make the winding motor 15 run, driving the winding shaft 13 to rotate. The winding shaft 13 drives the winding reel 14 to release the fall arrestor positioning rope 16. The construction personnel hold the limit block 18 and pull out the fall arrestor positioning rope 16. After the fall arrestor positioning rope 16 is wound around the support of the truss-type bridge erecting machine, it is finally firmly fixed to the rod-shaped support of the truss-type bridge erecting machine by the limiting component 161 on the fall arrestor positioning rope 16. During subsequent disassembly and assembly, it can be directly wound up by the winding motor 15, which effectively improves the convenience of recycling and preparation work.

[0029] According to some embodiments of this application, optionally, in order to enable the winding motor 15 to operate wirelessly, a battery for powering the winding motor 15 is also provided at the bottom of the fall arrestor platform 1.

[0030] According to some embodiments of this application, optionally, for ease of operation, the limiting component 161 is specifically a bolt-type clamp made of deformable metal. The bolt-type clamp is installed on the outer wall of the fall arrest positioning rope 16 by bolt fixing, with its U-shaped opening facing outward. In use, the U-shaped opening of the bolt-type clamp is wrapped around the rod-shaped support of the truss-type bridge erecting machine, and the U-shaped opening is closed by tightening the bolts on it, so that the bolt-type clamp is fixed to the rod-shaped support of the truss-type bridge erecting machine by clamping, thereby improving the firmness.

[0031] According to some embodiments of this application, optionally, in order to improve the strength of the connection, the fall arrest platform 1 and the fall arrest frame 2 are connected by welding or bolting, preferably by bolting, so as to facilitate subsequent maintenance work.

[0032] According to some embodiments of this application, optionally, in order to improve strength and durability, the fall arresting positioning rope 16 is one of nylon rope, flexible steel wire rope, and aramid rope, preferably a flexible steel wire rope.

[0033] According to some embodiments of this application, optionally, in order to prevent the limiting block 18 from retracting into the receiving groove 11, the area of ​​the limiting block 18 is larger than the area of ​​the protrusion 17.

[0034] According to some embodiments of this application, optionally, the outer wall of the limiting block 18 has a groove for easy gripping.

[0035] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0036] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0037] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A fall arrestor for a truss-type bridge erecting machine, characterized in that, include: Fall protection platform (1), fall protection frame (2); the fall protection frame (2) is vertically installed on one side of the fall protection platform (1), the end of the fall protection frame (2) extends and forms a guardrail structure that surrounds the fall protection platform (1), the inner side of the fall protection frame (2) is provided with a ladder (21) connected to the inlet of the fall protection platform (1), and the outer wall of the fall protection frame (2) is provided with several bolt holes for fixing the bracket of the truss bridge erecting machine; The bottom of the fall arrest platform (1) is provided with a retractable fall arrest protection mechanism for connecting and positioning with the bracket on the truss bridge erecting machine. The retractable fall arrest protection mechanism includes a downward-facing storage slot (11), a cover plate (12), a winding shaft (13), a winding reel (14), a winding motor (15), a fall arrest positioning rope (16), an extension opening (17), and a limiting block (18).

2. The fall protection frame for a truss bridge erector of claim 1, wherein, The cover plate (12) is fixedly closed to the opening of the storage groove (11). The winding shaft (13) is vertically rotated on the inner wall of the storage groove (11). The winding reel (14) is connected to the winding shaft (13). The winding motor (15) is located above the storage groove (11) and drives the winding shaft (13) to rotate. The anti-fall positioning rope (16) is wound on the winding reel (14). The cover plate (12) has at least one protrusion (17). One end of the anti-fall positioning rope (16) is fixed to the winding reel (14), and the other end extends through the protrusion (17) and is provided with a limiting block (18). The outer wall of the anti-fall positioning rope (16) is provided with several limiting components (161) at intervals.

3. The fall protection frame for a truss bridge erector of claim 1, wherein: The guardrail structure is equipped with a switch to control the operation of the winding motor (15).

4. The anti-fall frame for a truss-type bridge erecting machine according to claim 2, characterized in that, The limiting component (161) is specifically a bolt-type clamp, which is installed on the outer wall of the fall arrest positioning rope (16) by means of bolt fixing.

5. The fall protection frame for a truss bridge erector of claim 1, wherein, The fall arrest platform (1) and the fall arrest guard frame (2) are connected by welding or bolt fixing.

6. The fall protection frame for a truss bridge erector of claim 2, wherein, The fall arresting positioning rope (16) is one of the following: nylon rope, flexible steel wire rope, or aramid rope.

7. The fall protection frame for a truss bridge erector of claim 2, wherein: The area of ​​the limiting block (18) is larger than the area of ​​the protrusion (17).

8. The fall protection frame for a truss bridge erector of claim 7, wherein, The outer wall of the limiting block (18) has a groove for easy gripping.

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