T-beam electric welding auxiliary device capable of preventing welding slag from falling

Abstract

The utility model discloses a T-beam electric welding auxiliary device capable of preventing welding slag from falling, and belongs to the technical field of road and bridge erection engineering auxiliary devices. The device comprises a collecting box which can be placed in an area clamped by beam ribs of two T beams; an inner cavity of the collecting box is hollow, and the top of the collecting box is open; a lifting lug is arranged at the top of the collecting box; a plurality of telescopic rods are mounted at the lower bottom of the collecting box; the extending end of the telescopic rod extends towards the outer side of the collecting box, and the telescopic rod is arranged in the horizontal direction; a positioning block is mounted at the extending end of the telescopic rod; a roller is rotatably mounted on the positioning block; the roller can roll on the inclined surface on the upper side of the horseshoe part of the T-beam; the protective device effectively solves the problems that an effective protective device is lacked when a pre-embedded steel plate or reinforcing steel bar between two T-beams is welded at present, and large fire risks exist.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for road and bridge construction projects, specifically to an auxiliary device for welding T-beams to prevent welding slag from falling off. Background Technology

[0002] During the prefabrication of T-beams, steel plates or exposed rebar joints are usually pre-embedded at the beam ends or top. After erection and installation, workers connect the pre-embedded steel plates or rebars on two adjacent T-beams by welding to form a rigid transverse node. During the welding process, due to the lack of obstruction between the gaps between the T-beams and the fact that the area under the T-beams is usually open ground, flammable welding slag can fall directly onto the ground below the bridge. If flammable materials such as straw are left under the bridge, this can easily cause a fire, which is the main problem that needs to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a T-beam welding auxiliary device to prevent welding slag from falling, so as to solve the problem that there is no effective protective device when welding the embedded steel plate or reinforcing bar between two T-beams, which poses a great fire risk.

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A welding auxiliary device for T-beams to prevent welding slag from falling off; it includes a collection box that can be placed between the beam ribs of two T-beams; the collection box is placed horizontally, with a hollow interior and an open top; a lifting lug is provided on the top of the collection box; several telescopic rods are installed at the bottom of the collection box; the extended ends of the telescopic rods extend outwards from the collection box and are arranged horizontally; a positioning block is installed on the extended ends of the telescopic rods; a roller is rotatably mounted on the positioning block; the roller is capable of rolling on the inclined surface above the horseshoe part of the T-beam.

[0006] Preferably, the collection box is a rectangular disc-shaped structure; the collection box is formed by two identical unit components on the left and right sides, which are hinged together.

[0007] Furthermore, the hinge is located on the back of the collection box; a locking element is also provided on the collection box; the collection box can be locked by the locking element when unfolded; when the collection box is folded by the hinge, the telescopic rods do not interfere with each other.

[0008] Furthermore, the locking element is a strip-shaped plate structure; there are two locking elements; the two locking elements are fixed on the side wall of the same unit, with one end extending towards the other unit, and positioning holes are opened on both the locking element and the unit on the opposite side. The two units are detachably connected to each other at the positioning holes by positioning pins or bolts.

[0009] Preferably, two retaining sleeves are installed at the bottom of the collection box; the retaining sleeves are U-shaped channel steel structures with their top openings on the bottom end face of the collection box; the two retaining sleeves are arranged parallel to each other; the telescopic rod is detachably installed inside the retaining sleeves.

[0010] Preferably, the positioning block is a block structure with a ramp surface on the end side of the positioning block; the ramp surface is opposite to the inclined surface on the upper side of the T-beam horseshoe part, and the roller is installed on the ramp surface.

[0011] Preferably, a pair of ear plates are also provided on the sloping surface at the end of each positioning block, and the ear plates are set perpendicular to the inclined surface on the upper side of the T-beam horseshoe part; rollers are installed on the ear plates.

[0012] The beneficial effects of this utility model are reflected in the following aspects:

[0013] 1. Effectively prevents welding slag from falling and eliminates fire hazards: The collection box can be placed directly below the welding area, thus directly receiving the flammable welding slag generated during the welding process and effectively collecting it in the box, preventing the welding slag from falling directly to the ground under the bridge. This fundamentally solves the major safety hazard of welding slag igniting flammable materials such as straw under the bridge and causing a fire, and significantly improves the safety of welding operations.

[0014] 2. Strong adaptability and stable and reliable positioning: Through the telescopic rod set at the bottom of the collection box and the positioning block and roller structure at the end, the device can adapt to T-beams with different spacings; after the telescopic rod extends, the roller rolls tightly against the inclined surface of the T-beam's horseshoe part; this design not only ensures the device's stable support and precise positioning in the gaps between T-beams, preventing it from shifting or overturning during construction, but also facilitates the movement and adjustment of the device on the beam surface.

[0015] 3. Convenient operation and improved construction efficiency: The lifting lugs on the top facilitate cooperation with bridge cranes or manned cages to achieve rapid lifting, placement and retrieval of the device, making operation simple and efficient; the roller design further reduces frictional resistance when moving the device, and makes it easy to flexibly adjust the position of the collection box according to the location of the welding points;

[0016] 4. Compact structure, easy to transport and store: The collection box adopts a design with two unit components on the left and right sides, connected by hinges and secured with locking devices. When in use, it unfolds and locks to provide sufficient collection area. After use, the locking devices can be loosened (e.g., by pulling out the positioning pin or bolt), and the collection box can be folded along the hinges. This design significantly reduces the overall size of the device, greatly facilitating transportation, carrying, and storage in confined construction sites. At the same time, the design ensures that the telescopic rods do not interfere with each other when folded.

[0017] 5. Modular design and good maintainability: The telescopic rod is detachably installed at the bottom of the collection box via a clamp, and the positioning block, rollers and other components are also relatively independent; this modular design makes it easy to replace and maintain damaged parts, reduces maintenance costs and extends the service life of the device;

[0018] 6. Reduce the risk of falling objects from heights: In addition to fire prevention, centralized collection of welding slag also avoids the potential injury risk to personnel or equipment below the bridge caused by high-temperature welding slag falling from heights, thus improving the overall safety of the construction environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0020] Explanation of reference numerals in the attached diagram: 1. Collection box, 2. Lifting lug, 3. Telescopic rod, 4. Positioning block, 5. Roller, 6. Ear plate, 7. Locking component. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Example:

[0023] Reference Figure 1 This embodiment provides a T-beam welding auxiliary device to prevent welding slag from falling. It includes a collection box 1 that can be placed between the beam ribs of two T-beams. The collection box 1 is horizontally placed, with a hollow interior and an open top. A lifting lug 2 is provided on the top of the collection box 1. Several telescopic rods 3 are installed at the bottom of the collection box 1. The extended ends of the telescopic rods 3 extend outwards from the collection box 1, and the telescopic rods 3 are arranged horizontally. The telescopic rods 3 are preferably sleeve-type structures, and their length can be fixed manually (e.g., by pin hole positioning, thread tightening, or friction locking) to accommodate T-beams with different spacing. A positioning block 4 is installed on the extended end of the telescopic rod 3. A roller 5 is rotatably installed on the positioning block 4. The roller 5 can roll on the inclined surface above the horseshoe-shaped part of the T-beam. In this embodiment, fireproof cloth can be laid on the inner surface of the collection box to extend its service life and facilitate cleaning.

[0024] The collection box 1 is a rectangular disc-shaped structure; the collection box 1 is formed by two identical unit components on the left and right sides, which are hinged together.

[0025] The hinge is located on the back of the collection box 1; a locking element 7 is also provided on the collection box 1; the collection box 1 can be locked by the locking element 7 when unfolded; when the collection box 1 is folded by the hinge, the telescopic rods 3 do not interfere with each other. In this embodiment, the hinge is not shown in the illustration.

[0026] The locking element 7 is a strip-shaped plate structure; two locking elements 7 are provided; each locking element 7 is fixed to the side wall of the same unit component, with one end extending towards the other unit component. Positioning holes are provided on both the locking element 7 and the opposite unit component. The two unit components are detachably connected at the positioning holes by positioning pins or bolts. The positioning pins or bolts should have anti-loosening devices, such as cotter pins or lock nuts, to prevent accidental loosening during vibration or hoisting. The strip-shaped plate structure design of the locking element 7 provides sufficient bending stiffness when locked, ensuring that the connection surfaces of the two unit components are flush.

[0027] Two retaining sleeves are installed at the bottom of the collection box 1; the retaining sleeves are U-shaped channel steel structures with their top openings on the bottom end face of the collection box 1; the two retaining sleeves are arranged parallel to each other; the telescopic rod 3 is detachably installed inside the retaining sleeves.

[0028] The positioning block 4 is a block structure with a sloping surface on its end side; the sloping surface is opposite to the inclined surface on the upper side of the T-beam horseshoe part, and the roller 5 is installed on the sloping surface.

[0029] A pair of ear plates 6 are also provided on the sloping surface at each end of the positioning block 4. The ear plates 6 are set perpendicular to the inclined surface on the upper side of the T-beam horseshoe part; the roller 5 is mounted on the ear plates 6 by axle pins. Retaining rings or cotter pins can be set at both ends of the axle pins to ensure that the roller 5 will not move axially or fall off.

[0030] In this embodiment, the utility model device needs to be operated in conjunction with a crane or a manned cage on the bridge deck. The lifting lugs on the collection box are connected by a wire rope or hook. The movement of the collection box is achieved by moving the crane or by the operator on the manned cage.

[0031] When using the utility model device in this embodiment, the following steps can be referred to:

[0032] 1. Connect the lifting lug 2 on the top of the collection box 1 to the hook of the bridge crane or the manned cage, and lift the device in the folded or unfolded state to the gap between the beam ribs of two adjacent T beams; slowly lower the device so that it is initially placed in the gap between the two T beams;

[0033] 2. If the device is transported in a folded state, before or after it is hoisted into place, the operator (with assistance inside the cage or on the bridge deck) should loosen the locking part 7 (pull out the positioning pin / unload the bolt), rotate the two units of the collection box 1 along the hinge axis to the horizontal unfolded state, align the locking part 7 and the positioning holes on the opposite unit, reinsert the positioning pin or tighten the bolt to securely lock it.

[0034] 3. The operator manually adjusts the telescopic rods 3 on both sides of the bottom of the collection box 1 so that they extend towards the T-beams on both sides; observe the relative position of the roller 5 and the upper inclined surface of the T-beam horseshoe part, and continue to adjust the length of the telescopic rod 3 until the roller 5 can fit against the inclined surface; lock the length of the telescopic rod 3; at this time, the contact between the roller 5 and the inclined surface of the horseshoe part provides reliable lateral support and positioning for the device, and the collection box 1 is horizontally suspended directly below the welding area;

[0035] 4. Welders perform welding operations on the top of the T-beam for embedded steel plates or rebar joints; the high-temperature welding slag produced falls freely or splashes, and most of it is caught by the collection box 1 directly below and falls into its open cavity.

[0036] 5. Once a welding point is completed, if it needs to be moved to an adjacent welding point, the collection box can be moved to the next welding point by crane or manual control.

[0037] 6. Stop the operation when the welding work is completed or when the welding slag in the collection box accumulates to a certain extent; after the welding slag in the collection box 1 has completely cooled down, lift the entire device away from the working position by a crane; clean the welding slag in the collection box 1 in a safe area; if transportation or storage is required, the locking part 7 can be loosened, the collection box 1 can be folded along the hinge, and the telescopic rod 3 can be retracted to the shortest state to reduce the volume.

Claims

1. A T-beam welding auxiliary device to prevent welding slag from falling off, characterized in that: It includes a collection box (1) that can be placed between the beam ribs of two T beams; the collection box (1) is placed horizontally, with a hollow interior and an open top; a lifting lug (2) is provided on the top of the collection box (1); several telescopic rods (3) are installed at the bottom of the collection box (1); the extended ends of the telescopic rods (3) extend outwards from the collection box (1) and are arranged in a horizontal direction; a positioning block (4) is installed on the extended end of the telescopic rods (3); a roller (5) is rotatably installed on the positioning block (4); the roller (5) can roll on the inclined surface above the horseshoe part of the T beam.

2. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 1, characterized in that: The collection box (1) is a rectangular disc-shaped structure; the collection box (1) is made up of two identical unit parts on the left and right sides, which are hinged together.

3. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 2, characterized in that: The hinge is located on the back of the collection box (1); a locking element (7) is also provided on the collection box (1); the collection box (1) can be locked by the locking element (7) when unfolded; when the collection box (1) is folded by the hinge; the telescopic rods (3) do not interfere with each other.

4. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 3, characterized in that: The locking element (7) is a strip-shaped plate structure; there are two locking elements (7); the two locking elements (7) are fixed on the side wall of the same unit, with one end of each element extending toward the other unit, and positioning holes are opened on both the locking element (7) and the unit on the opposite side. The two units are detachably connected to each other at the positioning holes by positioning pins or bolts.

5. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 1, characterized in that: Two sleeves are installed at the bottom of the collection box (1); the sleeves are U-shaped channel steel structures with their top openings at the bottom end face of the collection box (1); the two sleeves are arranged parallel to each other; the telescopic rod (3) is detachably installed inside the sleeves.

6. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 1, characterized in that: The positioning block (4) is a block structure with a sloping surface on the end side of the positioning block (4); the sloping surface is opposite to the inclined surface on the upper side of the T-beam horseshoe part, and the roller (5) is installed on the sloping surface.

7. The T-beam welding auxiliary device for preventing welding slag from falling off according to claim 1, characterized in that: A pair of ear plates (6) are also provided on the sloping surface at the end of each positioning block (4). The ear plates (6) are set perpendicular to the inclined surface on the upper side of the T-beam horseshoe part; the rollers (5) are installed on the ear plates (6).

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