Protective device for pipe jacking operation of large-diameter pipe

Abstract

A protection device for pipe top operation of a large-diameter pipe comprises a base, universal wheels, a direction locking device, a telescopic support, a motor, a sensor, a circuit, a top platform and a folding guardrail mechanism. Universal wheels are arranged below the four corners of the base, four telescopic supports which are controlled by an electric lifting system and can stretch out and draw back synchronously are arranged above the four corners of the base, and a direction locking device is additionally installed on the side face of the base. A motor and a sensor are placed in the middle of the base, and circuits are arranged; a top platform is arranged at the top of the telescopic support, a folding guardrail mechanism is arranged on the periphery above the top platform, guardrails of the folding guardrail mechanism can be opened towards the periphery, and a link hinge is arranged between every two adjacent guardrails to be mutually fixed to form a stable structure. The device is used for PCCP pipe jacking operation, a good working environment is provided for daily pipe repairing, bell and spigot polishing and paint spraying, the safety protection effect of pipe jacking operation is achieved, the working efficiency is greatly improved, and the device is simple in structure, convenient to install and convenient to maintain in the later period.

Description

Technical field:

[0001] The utility model belongs to the technical field of mechanical equipment, in particular to a protective device used for pipe top operation of large-diameter pipes. Background technology:

[0002] The raw materials of PCCP pipelines are mainly steel plates and concrete. The concrete will inevitably be damaged during the daily handling of the pipeline, which will expose the steel bars during the wire wrapping process. After a long period of air oxidation, the steel bars will rust, which will directly affect the quality and service life of the pipes, causing quality problems for the project and making subsequent maintenance and inspection difficult. In the daily maintenance process, workers need to grind and paint the sockets of the pipes. The grinding and painting work on the top of the PCCP pipe is a dangerous work with great safety hazards. Once a high-altitude fall occurs, the consequences are often quite serious. In this process, due to the lack of protective devices specifically used for PCCP pipe top operations, there are huge potential safety hazards. Summary of the invention:

[0003] The utility model mainly aims at the deficiencies of the above-mentioned problems, solves the potential safety hazards of high-altitude operations in the daily production process of PCCP pipelines, provides a safe, convenient and efficient protective device, ensures the safety of operators, and promotes production work with quality and quantity.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a protective device for pipe top operation of large-diameter pipes, which comprises a base, universal wheels, a direction locking device, a telescopic bracket, a motor and a sensor, a line, a top platform and a folding guardrail mechanism; four universal wheels are arranged below the four corners of the base, four telescopic brackets that can be telescoped synchronously are arranged above the four corners, a motor and a sensor are placed in the middle of the base, and lines are arranged, the lines are connected to an electric lifting system, and the telescopic bracket is controlled by the electric lifting system; a direction locking device is added to the side of the base to fix the universal wheels; a top platform is arranged on the top of the four telescopic brackets, and a folding guardrail mechanism is arranged around the top of the top platform, the folding guardrail mechanism comprises a foldable guardrail, a link hinge and a movable bolt, the guardrail is fixed by the link hinge and the movable bolt, the guardrail can be opened to all sides, and link hinges are arranged between two adjacent guardrails to fix each other to form a stable structure.

[0006] The protective device has a cubic structure. Its main material is 6063 and 6061 series high-strength aluminum alloy, and it is assembled by welding and bolting.

[0007] Four high-load-bearing universal wheels are arranged below the four corners of the base.

[0008] The extension length of the telescopic bracket is highly consistent with the requirement of the pipe during operation.

[0009] The telescopic bracket rod body is precisely fitted with threaded screws of different diameters through nuts and seat sleeves and can rotate freely to form a threaded movement. Each section of the rod body has the same length and the diameter decreases by 1 cm successively. The lowest rod diameter is 10 cm.

[0010] The electric lifting system is driven by a DC motor and a gear rack transmission, with an overall transmission ratio of 1:150 and a lifting speed of about 30 mm / s. It is equipped with a lifting control operation cabinet, a battery, and an audible and visual alarm device.

[0011] The protective device is controlled by a wireless remote control device, and the motor is a remote-controlled motor.

[0012] The direction locking device comprises a brake pad, a steel wire, and a locking device switch. The locking device switch is composed of a pulley. Two brake pads are installed on both sides of the universal wheel, and the brake pads are connected to the locking device switch through a steel wire.

[0013] An independently retractable hand-cranking stabilizing device is arranged at the bottom of the direction locking device. The hand-cranking stabilizing device comprises a bracket and a latch. The bracket is inserted into the bottom of the direction locking device and the two are fixed by inserting the latch. The bracket contacts the ground at an acute angle.

[0014] The height of the protective device including the guardrail ranges from 2.5 to 3.7m, and the height of the top platform pedal surface from the ground ranges from 2 to 3.2m.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model has good strength, light weight, and elegant appearance, and can be moved between pipelines by manual pushing.

[0017] 2. The top platform of the utility model is provided with folding guardrails which can be folded outward on all sides, providing a good working environment for daily pipe repair, socket grinding and painting, ensuring the safety of PCCP pipeline top operators and playing a role in safety protection of pipe top operations.

[0018] 3. The utility model is equipped with an electric lifting system, through which the height of different positions of the top platform can be adjusted, and it can be suitable for the roof working height required by pipes of different sizes.

[0019] 4. The utility model is equipped with four high-load universal wheels and a direction locking device, which can allow the utility model to move in a straight line when necessary to avoid collision with other equipment and products, and can also save time in moving the utility model.

[0020] 5. The bottom of the utility model is provided with four sets of independently retractable hand-cranked stabilizers. In the working state, the hand-cranked stabilizers are extended to the maximum position to ensure the stability and reliability of the platform.

[0021] 6. The utility model is controlled by a wireless remote control device, which is simple and convenient.

[0022] In summary, the utility model is mainly used to protect the safety of operators during the PCCP pipe top operation process, provide a safe working environment, greatly improve work efficiency, and provide strong support for the safety of daily large-diameter pipe top production operations in enterprises. In addition, the utility model has a simple structure, ingenious design, easy installation, convenient later maintenance, and low production and use costs. Description of the drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the guardrail mechanism on the top of the platform;

[0025] Figure 3 This is a schematic diagram of the bottom structure of the utility model;

[0026] Figure 4 It is a schematic diagram of the telescopic bracket of the utility model;

[0027] Figure 5 It is a schematic diagram of the direction locking device and the hand-cranking stabilizing device of the utility model.

[0028] Reference numerals in the figures:

[0029] 1-direction locking device, 2-universal wheel, 3-telescopic bracket, 4-motor and sensor, 5-base, 6-line, 7-guardrail, 8-link hinge, 9-movable bolt, 10-brake pad, 11-steel wire, 12-pulley, 13-bracket, 14-latch. Specific implementation method:

[0030] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies identical or similar to the present invention do not exceed the scope of protection of the present invention.

[0031] See also Figure 1-Figure 5The utility model provides a protective device for large-diameter pipe top operation. The protective device is a cubic structure. Its main body material is made of high-strength aluminum alloy (6063, 6061 series) and is assembled by welding and bolting. The protective device includes a base 5, a universal wheel 2, a direction locking device 1, a telescopic bracket 3, a motor and a sensor 4, a line 6, a top platform, and a folding guardrail mechanism.

[0032] Four high-load universal wheels 2 are arranged below the four corners of the base 5, and four telescopic brackets 3 that can be telescoped synchronously are arranged above the four corners. The motor and sensor 4 are placed in the middle of the base 5, and the line 6 is arranged. The line 6 is connected to the electric lifting system. The motor is a remote-controlled motor, and the protective device is controlled by a wireless remote control device. The extension length of the telescopic bracket 3 is highly consistent with the requirements of the pipe when working. The telescopic bracket 3 is controlled by an electric lifting system. The electric lifting system is driven by a DC motor and a gear rack transmission machine. The overall transmission ratio is 1:150, and the lifting speed is about 30mm / s. It is equipped with a lifting control operation cabinet, a battery, and an audible and visual alarm device. The rod body of the telescopic bracket 3 is precisely fitted with threaded screws of different diameters through nuts and seat sleeves and rotates freely to form a threaded motion. The length of each section of the rod body is the same, and the diameter is reduced by 1cm successively. The diameter of the low rod is 10cm. When working, it is driven by a DC motor to drive all threaded screws to rotate synchronously, and the spiral rotation motion is converted into the linear motion of the rod body of the telescopic bracket 3, thereby realizing the lifting and lowering of the telescopic bracket 3.

[0033] A top platform is arranged on the top of the four telescopic brackets 3, and a folding guardrail mechanism is arranged around the top platform. The folding guardrail mechanism includes a foldable guardrail 7, a link hinge 8, and a movable bolt 9. The guardrail 7 is fixed by the link hinge 8 and the movable bolt 9. The guardrail 7 can be opened in all directions. Link hinges 8 are arranged between two adjacent guardrails to fix each other to form a stable structure. The height range of the protective device (including the guardrail) is 2.5 to 3.7 meters, and the height range of the top platform pedal surface from the ground is 2 to 3.2 meters.

[0034] A direction locking device 1 is installed on the side of the base 5 to fix the universal wheel 2. Four groups of direction locking devices 1 are provided. The direction locking device 1 includes a brake pad 10, a steel wire 11, and a locking device switch. The locking device switch is composed of a pulley 12. Two brake pads 10 are installed on both sides of the universal wheel 2. The brake pads 10 are connected to the locking device switch through the steel wire 11. The steel wire 11 is tightened by hand to fix the universal wheel 2. During the movement, the brake pads 10 are loosened by twisting the locking device switch to move forward. In a stationary state, the brake pads 10 are tightened by tightening the locking device switch to lock the direction.

[0035] An independently retractable hand-cranking stabilizing device is provided at the bottom of the direction locking device 1, and the hand-cranking stabilizing device includes a bracket 13 and a latch 14. The bracket 13 is inserted into the bottom of the direction locking device 1 and fixed by inserting the latch 14. When it is necessary to fix, the latch 14 is taken out to make the internal bracket 13 extend outward to a suitable position, and then the latch 14 is inserted back into the bracket 13 to lock and fix it. The bracket 13 contacts the ground at an acute angle to achieve a stabilizing effect.

[0036] When working, the staff stands on the top platform, opens the surrounding guardrails 7, and then turns on the lifting switch. Through the electric lifting system, it can be adjusted to the roof working height required for pipelines of different sizes.

Claims

1. A protective device for large diameter pipe top operation, characterized by: The protective device comprises a base (5), universal wheels (2), a direction locking device (1), a telescopic bracket (3), a motor and a sensor (4), a circuit (6), a top platform, and a folding guardrail mechanism; four universal wheels (2) are arranged below the four corners of the base (5), four telescopic brackets (3) that can be synchronously extended and retracted are arranged above the four corners, a motor and a sensor (4) are placed in the middle of the base (5), and a circuit (6) is arranged, the circuit (6) is connected to an electric lifting system, and the telescopic bracket (3) is controlled by the electric lifting system; a direction locking device (1) is installed on the side of the base (5) to fix the universal wheels (2); a top platform is arranged on the top of the four telescopic brackets (3), and a folding guardrail mechanism is arranged around the top of the top platform, the folding guardrail mechanism comprises a foldable guardrail (7), a link hinge (8), and a movable bolt (9), the guardrail (7) is fixed by the link hinge (8) and the movable bolt (9), the guardrail (7) can be opened in all directions, and a link hinge (8) is arranged between two adjacent guardrails to fix each other to form a stable structure.

2. A protective device for large diameter pipe top operation according to claim 1, characterized in that: The protective device has a cubic structure. Its main material is 6063 and 6061 series high-strength aluminum alloy, and it is assembled by welding and bolting.

3. The protective device for large diameter pipe top operation according to claim 1, characterized in that: Four high-load-bearing universal wheels (2) are arranged below the four corners of the base (5).

4. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The extension length of the telescopic bracket (3) is highly consistent with the requirements of the pipe during operation.

5. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The telescopic bracket (3) has threaded screws of different diameters which are precisely fitted together with the rod body through nuts and seat sleeves and can rotate freely to form a threaded movement. Each section of the rod body has the same length and its diameter decreases by 1 cm successively, and the lowest rod diameter is 10 cm.

6. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The electric lifting system is driven by a DC motor and a gear rack transmission, with an overall transmission ratio of 1:150 and a lifting speed of about 30 mm / s. It is equipped with a lifting control operation cabinet, a battery, and an audible and visual alarm device.

7. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The protective device is controlled by a wireless remote control device, and the motor is a remote-controlled motor.

8. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The direction locking device (1) comprises a brake pad (10), a steel wire (11), and a locking device switch, wherein the locking device switch is composed of a pulley (12), two brake pads (10) are mounted on both sides of the universal wheel (2), and the brake pads (10) are connected to the locking device switch via the steel wire (11).

9. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The bottom of the direction locking device (1) is provided with an independently retractable hand-cranking stabilizing device, which comprises a bracket (13) and a latch (14); the bracket (13) is inserted into the bottom of the direction locking device (1), and the two are fixed by inserting the latch (14); the bracket (13) contacts the ground at an acute angle.

10. The protective device for large diameter pipe top operation according to claim 1, characterized in that: The height of the protective device including the guardrail ranges from 2.5 to 3.7m, and the height of the top platform pedal surface from the ground ranges from 2 to 3.2m.

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