Safety protection device of welded steel structure

By designing a device that includes a welding safety protection collection hopper and an adjustment mechanism, the problem of high-temperature slag falling during high-altitude steel structure welding was solved, achieving a highly efficient safety protection effect.

CN224157939UActive Publication Date: 2026-04-24TONGCHUANG HUAJIAN GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGCHUANG HUAJIAN GRP CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing technologies cannot effectively protect against the falling of high-temperature slag during welding of high-altitude steel structures, resulting in insufficient safety.

Method used

A device was designed that includes a welding safety protection collection hopper, a connecting frame, a base, a rotary motor, a lifting component, and an adjustment mechanism. The device is suspended on a steel structure by the adjustment mechanism, and the collection hopper can collect high-temperature slag and prevent it from falling.

Benefits of technology

It effectively prevents high-temperature slag from falling, thus improving safety during the welding process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224157939U_ABST
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Abstract

The utility model belongs to the field of welding, particularly relates to a safety protection device for welding a steel structure, and provides the following scheme aiming at the problems that the welding of a high-altitude steel structure cannot be protected and high-temperature disintegrating slag is easy to fall in the prior art: the safety protection device comprises a welding safety protection collecting hopper; the connecting frame is in bolted connection with the bottom of the welding safety protection collecting hopper; the base is rotationally connected to the right side of the connecting frame; the rotating motor is in bolted connection with the bottom of the base, the output end of the rotating motor is in key connection with a hole of the connecting frame, the welding safety protection collecting hopper can be hung on a steel structure through rotation of the two connecting arms and upward movement of the base, and a user can move the welding safety protection collecting hopper to the welding position of the steel structure; and high-temperature disintegrating slag generated by welding can be received and collected by the welding safety protection collecting hopper and is prevented from falling, and the safety protection effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a safety protection device for welded steel structures. Background Technology

[0002] Steel structures are important structures in various buildings and bridges. The installation of steel structures often requires welding, which necessitates the use of safety protection devices to enhance the safety of the operation. For example, Chinese patent application number 202323639309.9 discloses a safety protection device for welding the main arch of a cross-bridge steel arch.

[0003] However, the above-mentioned technical solutions can only be placed on the ground, while the welding positions of steel structures are often at high altitudes. The devices cannot catch debris and cannot prevent the high-temperature slag generated during welding from falling onto various flammable materials, resulting in weak safety protection. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot protect welded high-altitude steel structures from damage and where high-temperature slag is prone to fall, and to propose a safety protection device for welded steel structures.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety protection device for welded steel structures includes a welding safety protection collection hopper;

[0007] The connecting frame is bolted to the bottom of the welded safety protection collection hopper;

[0008] The base is rotatably connected to the right side of the connecting frame;

[0009] A rotary motor is bolted to the bottom of the base, and the output end of the rotary motor is connected to the keyway of the connecting bracket.

[0010] The fixing assembly includes a connecting wheel, a support rod, a support cylinder, a connecting arm, and rollers. There are two connecting wheels, two support rods, two support cylinders, and two connecting arms. There are four rollers. The top of the connecting wheel is bolted to the bottom of the support rod. The surface of the support rod is slidably connected to the inside of the support cylinder. The top of the support cylinder is bolted to the bottom of the connecting arm. The axis of each of the two rollers is rotatably connected to both sides of a connecting arm.

[0011] The lifting assembly includes a lifting motor and a lead screw. There are two lifting motors and two lead screws. The output end of the lifting motor is keyed to the top end of the lead screw, and the surface of the lead screw is threaded to the screw hole at the top of the support rod.

[0012] The adjustment mechanism is connected to the connecting wheel. By rotating the two connecting arms and moving the base upward, the welding safety protection collection bucket can be suspended on the steel structure. The user can move the welding safety protection collection bucket to the welding position of the steel structure. The high-temperature slag produced by welding can be collected by the welding safety protection collection bucket to prevent it from falling and improve the safety protection effect.

[0013] In a preferred embodiment of this utility model, the adjusting mechanism includes a bidirectional electric actuator, a hinge rod, and a transmission rod. Two hinge rods and two transmission rods are provided. The two output ends of the bidirectional electric actuator are respectively hinged to one end of each of the two hinge rods. The hinge rods are hinged to the transmission rods. The top end of the transmission rod is keyed to the axis of the connecting wheel. When the power supply to the bidirectional electric actuator is turned on, a built-in power supply is used, controlled by a controller. The bidirectional electric actuator can drive the two hinge rods to retract inwards, the hinge rods can drive the transmission rods to rotate, and the transmission rods can drive the connecting wheel to rotate.

[0014] In a preferred embodiment of this utility model, the surface of the bidirectional electric actuator is bolted to the interior of the base, the hinge rod is eccentrically connected to the connecting wheel via the transmission rod, the bidirectional electric actuator is fixed by the base, which facilitates the operation of the bidirectional electric actuator, and the hinge rod can drive the connecting wheel to rotate via the transmission rod.

[0015] As a preferred embodiment of this utility model, a connecting seat is bolted to the left side of the bottom of the base. The surface of the connecting seat is bolted to the surface of the rotary motor. The connecting seat can support the rotary motor, making it convenient for the rotary motor to drive the welding safety protection collection bucket to rotate. When the power supply of the rotary motor is turned on, the rotary motor can drive the welding safety protection collection bucket to rotate.

[0016] As a preferred embodiment of this utility model, the grooves on both sides of the top of the base are rotatably connected to support wheels. The support wheels correspond to the rollers, and the support wheels cooperate with the rollers to clamp onto the steel structure, which facilitates the suspension of the welding safety protection collection bucket.

[0017] In a preferred embodiment of this utility model, the shaft of the connecting wheel is rotatably connected to the notch at the top of the base, the surface of the lifting motor is bolted to the hole at the top of the connecting arm, the connecting wheel is rotatably set to the base through a bearing to ensure the smoothness of the connecting wheel's rotation, and the lifting motor is fixed by the connecting arm to facilitate the lifting motor driving the lead screw to rotate.

[0018] Beneficial effects:

[0019] 1. The adjustment mechanism can drive the connecting wheel to rotate, the connecting wheel can drive the support rod to rotate, the support rod can drive the support cylinder to rotate, the support cylinder can drive the connecting arm to rotate, and the connecting arm can drive the roller to rotate. In this way, the two connecting arms can be opened, making it convenient to suspend the device on the steel structure.

[0020] 2. The lifting motor can drive the lead screw to rotate, and the lead screw can drive the support rod to move upward inside the support cylinder. The rollers and the base cooperate to limit the suspension state of the device.

[0021] In this invention, by rotating the two connecting arms and moving the base upward, the welding safety protection collection bucket can be suspended on the steel structure. The user can move the welding safety protection collection bucket to the welding position of the steel structure. The high-temperature slag produced by welding can be collected by the welding safety protection collection bucket, preventing it from falling and improving the safety protection effect. Attached Figure Description

[0022] Figure 1 This is a perspective view of the entire utility model;

[0023] Figure 2 This is a perspective view of the base of this utility model;

[0024] Figure 3 This is a perspective view of the support cylinder of this utility model;

[0025] Figure 4 This is a perspective view of the connecting arm of this utility model.

[0026] In the diagram: 1. Welding safety protection collection hopper; 2. Connecting frame; 3. Base; 4. Rotary motor; 5. Two-way electric actuator; 6. Hinge rod; 7. Transmission rod; 8. Connecting wheel; 9. Support rod; 10. Support cylinder; 11. Connecting arm; 12. Roller; 13. Lifting motor; 14. Lead screw; 15. Connecting seat; 16. Support wheel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Example

[0029] Reference Figures 1-4 A safety protection device for welded steel structures, comprising a welding safety protection collection hopper 1;

[0030] Connecting frame 2 is bolted to the bottom of the welded safety protection collection hopper 1;

[0031] Base 3 is rotatably connected to the right side of connecting frame 2;

[0032] Rotary motor 4 is bolted to the bottom of base 3, and the output end of rotary motor 4 is connected to the hole key of connecting bracket 2;

[0033] The fixing assembly includes a connecting wheel 8, a support rod 9, a support cylinder 10, a connecting arm 11, and rollers 12. There are two connecting wheels 8, two support rods 9, two support cylinders 10, and two connecting arms 11. There are four rollers 12. The top of the connecting wheel 8 is bolted to the bottom of the support rod 9. The surface of the support rod 9 is slidably connected to the inside of the support cylinder 10. The top of the support cylinder 10 is bolted to the bottom of the connecting arm 11. The axis of each of the two rollers 12 is rotatably connected to both sides of one connecting arm 11.

[0034] The lifting assembly includes a lifting motor 13 and a lead screw 14. There are two lifting motors 13 and two lead screws 14. The output end of the lifting motor 13 is keyed to the top end of the lead screw 14, and the surface of the lead screw 14 is threaded to the screw hole at the top of the support rod 9.

[0035] Adjustment mechanism, which is connected to connecting wheel 8.

[0036] With the above structure, the welding safety protection collection bucket 1 can be suspended on the steel structure by rotating the two connecting arms 11 and moving the base 3 upward. The user can move the welding safety protection collection bucket 1 to the welding position of the steel structure. The high-temperature slag generated by welding can be collected by the welding safety protection collection bucket 1 to prevent it from falling and improve the safety protection effect.

[0037] Please see Figure 3 The adjustment mechanism includes a bidirectional electric actuator 5, a hinge rod 6, and a transmission rod 7. There are two hinge rods 6 and two transmission rods 7. The two output ends of the bidirectional electric actuator 5 are respectively hinged to one end of the two hinge rods 6. The hinge rod 6 is hinged to the transmission rod 7. The top end of the transmission rod 7 is keyed to the axis of the connecting wheel 8. When the power supply of the bidirectional electric actuator 5 is turned on, the power supply adopts a built-in power supply and is controlled by a controller. The bidirectional electric actuator 5 can drive the two hinge rods 6 to retract inward. The hinge rod 6 can drive the transmission rod 7 to rotate. The transmission rod 7 can drive the connecting wheel 8 to rotate.

[0038] Please see Figure 3 The surface of the bidirectional electric actuator 5 is bolted to the inside of the base 3. The hinge rod 6 is eccentrically connected to the connecting wheel 8 through the transmission rod 7. The bidirectional electric actuator 5 is fixed by the base 3, which facilitates the operation of the bidirectional electric actuator 5. The hinge rod 6 can drive the connecting wheel 8 to rotate through the transmission rod 7.

[0039] Please see Figure 2 A connecting seat 15 is bolted to the left side of the bottom of the base 3. The surface of the connecting seat 15 is bolted to the surface of the rotary motor 4. The connecting seat 15 can support the rotary motor 4, so that the rotary motor 4 can drive the welding safety protection collection bucket 1 to rotate. When the power supply of the rotary motor 4 is turned on, the rotary motor 4 can drive the welding safety protection collection bucket 1 to rotate.

[0040] Please see Figure 2 The grooves on both sides of the top of the base 3 are rotatably connected to support wheels 16. The support wheels 16 correspond to the rollers 12. The support wheels 16 and rollers 12 cooperate to clamp onto the steel structure, which facilitates the suspension of the welding safety protection collection bucket 1.

[0041] Please see Figure 4 The shaft of the connecting wheel 8 is rotatably connected to the notch at the top of the base 3. The surface of the lifting motor 13 is bolted to the hole at the top of the connecting arm 11. The connecting wheel 8 is rotatably set with the base 3 through the bearing to ensure the smooth rotation of the connecting wheel 8. The lifting motor 13 is fixed by the connecting arm 11 to facilitate the lifting motor 13 to drive the lead screw 14 to rotate.

[0042] It should be noted that the specific models of rotary motor 4, bidirectional electric actuator 5, and lifting motor 13 used are to be selected by those skilled in the art. Furthermore, the rotary motor 4, bidirectional electric actuator 5, and lifting motor 13 mentioned above are all existing technologies and will not be elaborated upon in this solution.

[0043] The welding safety protection collection bucket 1 adopts existing technology and can use the receiving structure of the patent with application number 202323639309.9.

[0044] 2. Operation steps of this utility model: When it is necessary to suspend the welding safety protection collection bucket 1, connect the power supply of the bidirectional electric actuator 5. The power supply adopts a built-in power supply and is controlled by a controller. The bidirectional electric actuator 5 can drive the two hinge rods 6 to retract inward. The hinge rods 6 can drive the transmission rod 7 to rotate. The transmission rod 7 can drive the connecting wheel 8 to rotate. The connecting wheel 8 can drive the support rod 9 to rotate. The support rod 9 can drive the support cylinder 10 to rotate. The support cylinder 10 can drive the connecting arm 11 to rotate. The connecting arm 11 can drive the roller 12 to rotate. The two connecting arms 11 open outward. At this time, the two support cylinders 10 of the device are aligned with the steel structure, driving the bidirectional electric actuator 5 in the opposite direction. This allows the welding safety protection collection bucket 1 to be suspended on a steel structure. The lifting motor 13 is connected to a power source, which is a self-contained power supply and controlled by a controller. The lifting motor 13 can drive the lead screw 14 to rotate. The lead screw 14 can drive the support rod 9 to move upward inside the support cylinder 10 through the thread. The roller 12 and the support wheel 16 of the base 3 cooperate to limit the suspension state of the device. In this way, the welding safety protection collection bucket 1 suspended on the steel structure can be moved to the welding position. The high-temperature slag generated by welding can be collected by the welding safety protection collection bucket 1 to prevent it from falling and improve the safety protection effect.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety protection device for welded steel structures, comprising a welding safety protection collection hopper (1), characterized in that: Connecting frame (2), the connecting frame (2) is bolted to the bottom of the welded safety protection collection hopper (1); The base (3) is rotatably connected to the right side of the connecting frame (2); Rotary motor (4) is bolted to the bottom of base (3), and the output end of rotary motor (4) is connected to the key hole of connecting frame (2); The fixing assembly includes a connecting wheel (8), a support rod (9), a support cylinder (10), a connecting arm (11), and rollers (12). There are two connecting wheels (8), two support rods (9), two support cylinders (10), and two connecting arms (11). There are four rollers (12). The top of the connecting wheel (8) is bolted to the bottom of the support rod (9). The surface of the support rod (9) is slidably connected to the inside of the support cylinder (10). The top of the support cylinder (10) is bolted to the bottom of the connecting arm (11). The axis of the two rollers (12) is rotatably connected to the two sides of a connecting arm (11). The lifting assembly includes a lifting motor (13) and a lead screw (14). There are two lifting motors (13) and two lead screws (14). The output end of the lifting motor (13) is keyed to the top end of the lead screw (14). The surface of the lead screw (14) is threaded to the screw hole at the top of the support rod (9). Adjustment mechanism, which is connected to the connecting wheel (8).

2. A safety guard for a welded steel structure according to claim 1, characterized in that The adjustment mechanism includes a bidirectional electric actuator (5), a hinge rod (6), and a transmission rod (7). There are two hinge rods (6) and two transmission rods (7). The two output ends of the bidirectional electric actuator (5) are respectively hinged to one end of the two hinge rods (6). The hinge rod (6) is hinged to the transmission rod (7). The top end of the transmission rod (7) is keyed to the axis of the connecting wheel (8).

3. A safety guard for a welded steel structure according to claim 2, characterized in that The surface of the bidirectional electric actuator (5) is bolted to the inside of the base (3), and the hinge rod (6) is eccentrically connected to the connecting wheel (8) through the transmission rod (7).

4. A safety guard for a welded steel structure according to claim 1, characterized in that The bottom left side of the base (3) is bolted to a connecting seat (15), and the surface of the connecting seat (15) is bolted to the surface of the rotary motor (4).

5. A safety guard for a welded steel structure according to claim 1, characterized in that The grooves on both sides of the top of the base (3) are rotatably connected to support wheels (16), and the support wheels (16) correspond to the rollers (12).

6. A safety guard for a welded steel structure according to claim 1, characterized in that The axis of the connecting wheel (8) is rotatably connected to the notch at the top of the base (3), and the surface of the lifting motor (13) is bolted to the hole at the top of the connecting arm (11).

Citation Information

Patent Citations

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

    CN222221519U