A portable retractable anti-falling anchor rod device

Abstract

The application discloses a portable telescopic anti-falling anchor rod device, which comprises an anchor rod body, a telescopic rod arranged at the top of the anchor rod body, a plurality of speed differentiator hanging points capable of rotating by 360 degrees arranged on the top of the telescopic rod, a first limiting sensor, a first handle, an explosion-proof electric box, a second limiting sensor, a DC speed reducer and a base sequentially arranged at the lower part of the telescopic rod, first connecting pieces arranged at the four corners of the base and detachably connected with second connecting pieces on a fixed base through inserts, a sleeve matched with a construction platform well mouth arranged at the bottom of the fixed base, lithium phosphate batteries arranged in the explosion-proof electric box, pure electric lifting support, no external power supply, explosion-proof and limiting protection functions, compact structure, convenient movement and disassembly, four people simultaneous operation support, rotatable hanging points, anti-winding, application to drilling platforms, petrochemical facilities, temporary operation and other places where fixed anchor points cannot be arranged, high safety and strong environmental adaptability.

Description

Technical Field

[0001] This invention relates to the field of safety protection technology for high-altitude operations, specifically a mobile, portable, and telescopic anti-fall anchor device for use in drilling platforms, petrochemical facilities, temporary work areas, and other similar locations. Background Technology

[0002] In construction operations in industries such as petroleum, chemical, and building, especially in areas like wellheads and temporary platforms, workers often face the risk of falling from heights. Traditional fall arrest anchors are typically fixed structures that cannot be moved, are complex to install, and have limited applicability. Furthermore, existing anchors have a limited number of attachment points, preventing simultaneous work at multiple locations, and ropes are prone to tangling, making them inconvenient to use. Therefore, there is an urgent need for a movable, retractable fall arrest device that can be used by multiple people simultaneously and adaptable to complex environments. Summary of the Invention

[0003] The purpose of this invention is to provide a telescopic anti-fall anchor bolt device that is compact in structure, easy to move, flexible in lifting, adaptable to multiple work positions, and explosion-proof and safe.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a portable telescopic anti-fall anchor bolt device, comprising an anchor bolt body, a telescopic rod at the top of the anchor bolt body, a plurality of speed differential attachment points on the top of the telescopic rod, and bearings inside the speed differential attachment points, enabling them to rotate 360° on the telescopic rod; The lower part of the telescopic rod is provided with a first limit sensor, a first handle is welded below the first limit sensor, and an explosion-proof electrical box is provided below the first handle. The explosion-proof electrical box is equipped with a power switch, power indicator light, up button, down button and door lock on the outside, and limit switch, lithium phosphate battery and reverse switch on the inside. A second limit sensor is provided below the explosion-proof electrical box, a DC geared motor is provided at the bottom of the anchor rod body, a second handle is welded to the outside of the DC geared motor, and a base is fixedly connected to the bottom of the DC geared motor by bolts; a first connector is welded to each of the four corners of the base. The anchor bolt device also includes a fixed base and a plug-in, which are used in conjunction with the anchor bolt body; a third handle is welded to each of the two sides of the fixed base, and a second connector is welded to each of the other two sides; the first connector and the second connector are fixed together by the plug-in. A sleeve is fixedly connected to the bottom of the fixed base. The sleeve can be inserted into the wellhead of the construction platform. The size of the sleeve can be customized according to the size of the wellhead. The top of the plug is larger than the diameter of the hole in the first connector, and a through hole is provided at the tail for a steel wire to pass through to prevent the plug from sliding out from both ends of the connector.

[0005] Beneficial effects: This invention adopts a layered hanging point design that can rotate 360°, facilitating smooth passage for workers during movement and preventing the ropes of the differential lock from getting tangled; it uses a pure electric lifting mechanism with an explosion-proof electrical box, requiring no external power supply and adapting to flammable and explosive environments; all four hanging points can be used simultaneously, supporting multi-person collaborative work.

[0006] The device is easy to assemble and disassemble, making it suitable for scenarios where fixed anchor points cannot be installed, such as petrochemical plants, drilling platforms, and temporary work areas. The retracted height of the equipment is 1.6 meters, and the total height when raised is 3.5 meters, meeting the needs of various height operations. The net weight of the equipment is 50 kg, the single attachment point can bear 150 kg, and it can carry four people at the same time, with a total load capacity of 600 kg. The electrical box has an explosion-proof rating of IIC, the battery discharge temperature is -20℃~60℃, and the limit sensor operating temperature is -35℃~80℃, adapting to extreme environments. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure shown in an embodiment of the present invention; Figure 2 This is a schematic diagram of the main structure of the anchor bolt as shown in the present invention; Figure 3 This is a schematic diagram of the structure of the fixed base shown in this invention; Figure 4 This is a schematic diagram of the structure of the plug-in shown in this invention.

[0008] Reference numerals in the attached diagram: 1-Anchor rod body; 2-Telescopic rod; 3-Differential gear attachment point; 4-First limit sensor; 5-First handle; 6-Explosion-proof electrical box; 601-Power switch; 602-Power indicator light; 603-Up button; 604-Down button; 605-Electrical box door lock; 7-Second limit sensor; 8-DC geared motor; 9-Base; 901-First connector; 10-Fixed base; 101-Third handle; 102-Second connector; 103-Sleeve; 11-Plug-in; 12-Second handle. Detailed Implementation

[0009] 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. Example

[0010] like Figures 1-4As shown, before use, the sleeve 103 is first customized according to the wellhead size of the construction platform. Then, the sleeve 103 is welded to the bottom of the fixed base 10, and the fixed base 10 is fixed by inserting the sleeve 103 into the wellhead. Then, the first connector 901 at the bottom of the anchor bolt body 1 is aligned with the second connector 102 on the fixed base 10. The insert 11 is passed through the connection hole of the two, and a steel wire is inserted into the through hole at its tail to prevent slippage.

[0011] Connect the lithium phosphate battery in the explosion-proof electrical box 6, turn on the power switch 601, and confirm that the battery is fully charged using the power indicator light 602. Operate the lift button 603 to start the DC geared motor 8, driving the telescopic rod 2 to rise to the desired height. The first limit sensor 4 and the second limit sensor 7 automatically trigger the limit switch when the telescopic rod 2 reaches its limit position, stopping the motor and ensuring safety.

[0012] During operation, workers can attach the differential speed device to the attachment point 3 at the top of the telescopic pole 2. The attachment point 3 can rotate freely under the action of the bearing, following the worker's movement direction, thus preventing the rope from getting tangled. The four attachment points can be used by four workers simultaneously.

[0013] After the work is completed, the telescopic rod 2 is retracted to its lowest height by pressing the descent button 604, the plug 11 is removed, and the anchor body 1 is separated from the fixed base 10, so that it can be moved to the next work area.

[0014] Although the invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, features in the embodiments disclosed herein can be combined in any way, provided there is no structural conflict. The lack of an exhaustive description of these combinations in this specification is merely for brevity and resource conservation. Therefore, the invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A portable telescopic anti-fall anchor bolt device, comprising an anchor bolt body (1), characterized in that: The top of the anchor rod body (1) is provided with a telescopic rod (2), and the top of the telescopic rod (2) is provided with several speed differential attachment points (3), and the speed differential attachment points (3) are provided with bearings; the lower part of the telescopic rod (2) is provided with a first limit sensor (4), and below it are arranged a first handle (5), an explosion-proof electrical box (6), a second limit sensor (7), a DC geared motor (8), and a base (9); the four corners of the base (9) are provided with first connectors (901), and a second handle (12) is welded to one side of the DC geared motor (8); it also includes a fixed base (10) and a plug (11), the bottom of the fixed base (10) is provided with a sleeve (103), and the two sides are provided with second connectors (102), and the first connector (901) and the second connector (102) are fixedly connected by the plug (11).

2. The portable telescopic anti-fall anchor bolt device according to claim 1, characterized in that: The explosion-proof electrical box (6) is equipped with a power switch (601), a power indicator light (602), an up button (603), a down button (604), and an electrical box door lock (605) on the outside, and a limit switch, a lithium phosphate battery, and a reverse switch on the inside.

3. The portable telescopic anti-fall anchor bolt device according to claim 1, characterized in that: The top dimension of the plug (11) is larger than the diameter of the connector hole, and a through hole is provided at the tail for threading steel wire to prevent it from falling off.

4. A portable telescopic anti-fall anchor bolt device according to claim 1, characterized in that: The sleeve (103) is sized to match the wellhead of the construction platform and can be customized.

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