Safety protection device for welding of main arch of span bridge type steel arch

Abstract

The utility model discloses a span bridge type steel arch main arch welding safety protection device which comprises a shearing force lifting base, installation boxes are fixedly installed on the two sides of the shearing force lifting base, universal wheels are rotatably installed at the four corners of the bottom of the shearing force lifting base, and a movable plate is installed at the top of the shearing force lifting base in a hinged mode. A protective fence is fixedly mounted at the top of the movable plate, a receiving groove is formed in the top of the movable plate, absorption boxes are fixedly mounted on the two sides of the protective fence, and a plurality of absorption heads are fixedly mounted on the sides, away from each other, of the two absorption boxes. The safety protection device is simple in structure and convenient to move, braking protection can be conveniently carried out on the whole device in the welding process, welding slag and smoke dust generated in the welding process can be collected and protected, and harm of the welding slag and the smoke dust is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding safety protection devices, in particular to a welding safety protection device for a main arch of a span-bridge type steel arch. Background Art

[0002] With the development of the times, the construction industry has flourished. Steel, as an indispensable part of construction, plays an important supporting role in buildings. In many steel structure buildings, uniform welding is carried out in the factory and then transported to the construction site for assembly. Lightweight steel arch frame components mainly include arch foot segments, standard segments, adjustment segments and arch top segments. These components are of different sizes and shapes. During on-site construction, lifting equipment is needed to transport the lightweight steel arch frame components to the predetermined location and then assemble and connect them.

[0003] There are many sources of energy for modern welding, including gas flame, electric arc, laser, electron beam, friction and ultrasound. In addition to being used in factories, welding can also be performed in a variety of environments, such as outdoors, underwater and at high altitudes. High-altitude steel structure welding is a type of welding.

[0004] The patent with application number CN201921048490.7 discloses a bridge welding protection device, including a first protective frame, the number of the first protective frames is two groups, and the upper ends of the two groups of the first protective frames are fixedly installed with a second protective frame, the top and bottom positions of the outer walls of one side of the first protective frame and the second protective frame are fixedly connected with a socket, and the inner surface of the socket is plugged with an assembly connecting rod, and the top and bottom positions of both ends of the assembly connecting rod are provided with insertion strips, and a ladder is fixedly installed on the upper surface of the assembly connecting rod, and the upper and lower ends of the ladder are fixedly connected with buckle sleeves, the ladder includes a plurality of climbing rods and two support rods, and the lower surface of the second protective frame is fixedly connected with an insertion rod.

[0005] However, when welding, the welding slag formed by the existing structure is easy to fall and seriously endanger the safety of ground construction workers. In addition, the device is not easy to move, resulting in poor practicality.

[0006] Based on this, this scheme proposes a welding safety protection device for the main arch of a cross-bridge steel arch. Utility Model Content

[0007] The utility model aims to provide a safety protection device for welding a main arch of a span-bridge type steel arch, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above purpose, the utility model provides the following technical solutions: a bridge-type steel arch main arch welding safety protection device, comprising a shear lifting base,

[0009] The two sides of the shear lift base are fixedly installed with installation boxes, and the four corners of the bottom of the shear lift base are rotatably installed with universal wheels. The top of the shear lift base is hingedly installed with a movable plate, and the top of the movable plate is fixedly installed with a guardrail;

[0010] A receiving slot is provided on the top of the movable plate;

[0011] Absorption boxes are fixedly installed on both sides of the guardrail, multiple absorption heads are fixedly installed on the sides of the two absorption boxes away from each other, and a smoke exhaust fan is fixedly installed on one side of the two absorption boxes;

[0012] Two through holes are provided at the bottom of the two installation boxes, and two installation blocks are fixedly installed in the two installation boxes, a vertical rod is movably installed in any through hole, a pulley is rotatably installed at the top of any vertical rod, and a brake plate is fixedly installed at the bottom of any vertical rod, a sliding hole is provided on any installation block, a cross rod is movably installed in any sliding hole, a movable rod is fixedly installed at one end of any cross rod, and a trapezoidal plate adapted to the pulley is fixedly installed at the other end of any cross rod;

[0013] Motors are fixedly installed on the sides of the two installation boxes that are away from each other, and equal-diameter cams are fixedly sleeved on the output shafts of the two motors.

[0014] Preferably, the two equal-diameter cams are respectively located between the corresponding two movable rods and are adapted to the movable rods.

[0015] Preferably, a control panel is fixedly mounted on the top of the corresponding installation box.

[0016] By adopting the above technical solution, it is convenient to control and start the two motors and the two smoking fans through the control panel.

[0017] Preferably, filter components are provided in both absorption boxes.

[0018] By adopting the above technical solution, smoke dust can be easily absorbed and filtered through the filter component.

[0019] Preferably, a first spring is sleeved on any cross bar, one end of the first spring is fixed on the corresponding cross bar, and the other end of the first spring is fixed on the inner wall of the corresponding sliding hole.

[0020] By adopting the above technical solution, the first spring facilitates the resetting of the cross bar.

[0021] Preferably, a second spring is sleeved on any vertical rod, one end of the second spring is fixed on the corresponding vertical rod, and the other end is fixed on the inner wall of the corresponding through hole.

[0022] By adopting the above technical solution, the second spring facilitates the resetting of the vertical rod.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. By starting two motors to drive the rotation of two equal-diameter cams, the two equal-diameter cams squeeze the corresponding movable rods on both sides respectively, which can drive the corresponding two movable rods to move left and right separately, and drive the corresponding two trapezoidal plates to move left and right separately. During the movement, the trapezoidal plates squeeze the corresponding pulleys respectively, which can drive the corresponding two vertical rods to move downward, and drive the two brake plates to move downward, so that the four brake plates are in contact with the ground at the same time, and the entire device can be braked to prevent the device from slipping away and causing danger during the welding process.

[0025] 2. By starting two exhaust fans to generate suction, the smoke can be absorbed by the absorption head and collected in the absorption box to reduce the harm of smoke to the workers. The welding slag falls into the receiving trough and is collected centrally, preventing the welding slag from falling to the bottom and causing harm to the people below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional diagram of the utility model;

[0027] Figure 2 This is a three-dimensional diagram of the internal structure of the installation box of the utility model;

[0028] Figure 3 This is a schematic structural diagram of part A of the utility model.

[0029] In the figure: 1. shear lift base; 2. brake plate; 3. control panel; 4. motor; 5. installation box; 6. smoking fan; 7. absorption head; 8. absorption box; 9. guardrail; 10. receiving slot; 11. movable plate; 12. universal wheel; 13. installation block; 14. cross bar; 15. first spring; 16. movable rod; 17. equal diameter cam; 18. second spring; 19. trapezoidal plate; 20. pulley; 21. vertical rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-3The utility model provides a technical solution: a safety protection device for welding a main arch of a cross-bridge steel arch, comprising a shear lifting base 1, installation boxes 5 are fixedly installed on both sides of the shear lifting base 1, and universal wheels 12 are rotatably installed at the four corners of the bottom of the shear lifting base 1, a movable plate 11 is hingedly installed on the top of the shear lifting base 1, a guardrail 9 is fixedly installed on the top of the movable plate 11, a receiving groove 10 is opened on the top of the movable plate 11, absorption boxes 8 are fixedly installed on both sides of the guardrail 9, a plurality of absorption heads 7 are fixedly installed on the sides of the two absorption boxes 8 away from each other, and a smoking fan 6 is fixedly installed on one side of the two absorption boxes 8, and a filter assembly is arranged in the two absorption boxes 8. Through the above-mentioned structural setting, the receiving groove 10 can be used to receive welding slag dropped during welding, and the smoke generated during welding can be absorbed and processed by starting the two smoking fans 6, and the guardrail 9 can be used to protect the staff from falling.

[0032] Combination Figure 1-3 As shown, two through holes are provided at the bottom of the two installation boxes 5, and two installation blocks 13 are fixedly installed in the two installation boxes 5, a vertical rod 21 is movably installed in any through hole, a pulley 20 is rotatably installed at the top of any vertical rod 21, and a brake plate 2 is fixedly installed at the bottom of any vertical rod 21, a sliding hole is provided on any installation block 13, a cross bar 14 is movably installed in any sliding hole, a movable rod 16 is fixedly installed at one end of any cross bar 14, and a trapezoidal plate 19 adapted to the pulley 20 is fixedly installed at the other end of any cross bar 14, a first spring 15 is sleeved on any cross bar 14, and one end of the first spring 15 is fixed on the opposite The second spring 18 is sleeved on any vertical rod 21, one end of the second spring 18 is fixed on the corresponding vertical rod 21, and the other end is fixed on the inner wall of the corresponding through hole. The two mounting boxes 5 are fixedly installed with motors 4 on the sides away from each other, and the output shafts of the two motors 4 are fixedly sleeved with equal-diameter cams 17, which are respectively located between the corresponding two movable rods 16 and matched with the movable rods 16. Through the above-mentioned structural arrangement, by starting the two motors 4, the four brake plates 2 can be driven to contact the ground at the same time, so that the entire device can be braked to prevent the device from slipping away and causing danger during welding.

[0033] Combination Figure 1-3 As shown, a control panel 3 is fixedly installed on the top of the corresponding installation box 5. Through the above-mentioned structural setting, the control panel 3 is used to facilitate remote operation to start the two motors 4 and the two smoking fans 6.

[0034] The working principle of the utility model is as follows: first, the staff stands in the guardrail 9, and the guardrail 9 can be used to prevent the staff from falling. By starting the shear lifting device of the shear lifting base 1, the receiving slot 10 can be lifted upward. During this period, the two motors 4 are started to drive the rotation of the two equal-diameter cams 17, and the two equal-diameter cams 17 squeeze the corresponding movable rods 16 on both sides respectively, which can drive the corresponding two movable rods 16 to move left and right separately, and can drive the corresponding two trapezoidal plates 19 to move left and right separately. The trapezoidal plates 19 squeeze the corresponding The pulley 20 can drive the corresponding two vertical rods 21 to move downward, which can drive the two brake plates 2 to move downward, so that the four brake plates 2 can contact the ground at the same time, and the entire device can be braked to prevent the device from slipping away and causing danger during welding. Then the staff can weld the steel arch frame. Smoke and welding slag will be generated during welding. The welding slag will fall into the receiving groove 10 and be collected in a centralized manner. By starting the two exhaust fans 6 to generate suction, the smoke can be absorbed by the absorption head 7 and collected in the absorption box 8, reducing the harm of smoke to the staff. The utility model has a simple structure, and the described safety protection device for welding the main arch of a cross-bridge steel arch is easy to move, and is convenient for braking and protecting the entire device during welding, and can collect and protect the welding slag and smoke generated during welding, reducing the harm of welding slag and smoke.

[0035] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A safety protection device for welding a main arch of a bridge-type steel arch, comprising a shear lift base (1), characterized in that: The shear lift base (1) is fixedly provided with a mounting box (5) on both sides thereof, and universal wheels (12) are rotatably provided at the four corners of the bottom of the shear lift base (1), a movable plate (11) is hingedly provided at the top of the shear lift base (1), and a guardrail (9) is fixedly provided at the top of the movable plate (11); A receiving groove (10) is provided on the top of the movable plate (11); Absorption boxes (8) are fixedly installed on both sides of the guardrail (9), a plurality of absorption heads (7) are fixedly installed on the sides of the two absorption boxes (8) away from each other, and a smoking fan (6) is fixedly installed on one side of the two absorption boxes (8); The bottoms of the two installation boxes (5) are provided with two through holes, and two installation blocks (13) are fixedly installed in the two installation boxes (5), a vertical rod (21) is movably installed in any of the through holes, a pulley (20) is rotatably installed at the top of any of the vertical rods (21), and a brake plate (2) is fixedly installed at the bottom of any of the vertical rods (21), a sliding hole is provided on any of the installation blocks (13), a cross rod (14) is movably installed in any of the sliding holes, a movable rod (16) is fixedly installed at one end of any of the cross rods (14), and a trapezoidal plate (19) adapted to the pulley (20) is fixedly installed at the other end of any of the cross rods (14); A motor (4) is fixedly mounted on one side of the two mounting boxes (5) that is away from each other, and an equal-diameter cam (17) is fixedly sleeved on the output shafts of the two motors (4).

2. A safety protection device for welding a main arch of a bridge-type steel arch according to claim 1, characterized in that: The two equal-diameter cams (17) are respectively located between the corresponding two movable rods (16) and are adapted to the movable rods (16).

3. A safety protection device for welding a main arch of a bridge-type steel arch according to claim 1, characterized in that: A control panel (3) is fixedly mounted on the top of the corresponding installation box (5).

4. A safety protection device for welding a main arch of a bridge-type steel arch according to claim 1, characterized in that: Filter components are arranged in both absorption boxes (8).

5. The welding safety protection device for the main arch of a bridge-type steel arch according to claim 1 is characterized in that: A first spring (15) is sleeved on any cross bar (14), one end of the first spring (15) is fixed on the corresponding cross bar (14), and the other end is fixed on the inner wall of the corresponding sliding hole.

6. The welding safety protection device for the main arch of a bridge-type steel arch according to claim 1 is characterized in that: A second spring (18) is sleeved on any vertical rod (21), one end of the second spring (18) is fixed on the corresponding vertical rod (21), and the other end is fixed on the inner wall of the corresponding through hole.

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