Support special for stair welding

Abstract

The utility model discloses a special support for stair welding, which comprises a mounting platform and stepping frames arranged on the two sides of the mounting platform, welding tools are arranged on the two sides of the mounting platform, one or two groups of welding tools are arranged, each welding tool comprises a sliding rail and a sliding seat connected with the sliding rail in a sliding mode, and the sliding seats are connected with the sliding rails in a sliding mode. The sliding seat is detachably connected with a supporting frame, an auxiliary platform is fixedly arranged on the supporting frame, a notch matched with a stair plate frame is formed in the auxiliary platform, and an inner connecting frame detachably connected with the auxiliary platform is arranged on the side, opposite to the stair plate frame, of the auxiliary platform. A sliding groove is formed in the bottom of the sliding seat, and the sliding rails are arranged on the two sides of the mounting platform in a buried mode. Butt joint plates are arranged on the end face of the sliding base at intervals, and the butt joint plates and the bottom fixing installation base of the supporting frame are matched in an inserted connection mode and fixed through bolts.

Description

Technical Field

[0001] This utility model belongs to the field of building technology, specifically relating to a special support for welding stairs. Background Technology

[0002] Staircases, as the main vertical transportation and emergency evacuation route in a building, have a significant impact on the normal use and emergency evacuation of the entire building.

[0003] Most existing buildings use traditional cast-in-place reinforced concrete stairs. Although they have significant advantages in terms of sturdiness, sound insulation, and maintenance-free operation, reinforced concrete stairs are heavy and require complex procedures such as formwork, rebar tying, on-site pouring, and curing. This results in disadvantages such as long construction periods, numerous hidden works, and poor quality control.

[0004] To address the shortcomings of existing technologies, the present technology effectively combines steel structures with concrete pouring by employing a segmented steel staircase structure that is integrated with concrete pouring. This ensures the structural strength of the entire segmented steel staircase structure and guarantees a reliable connection with the floor beams and concrete floor.

[0005] However, in the existing technology, the segmented steel staircase structure is prefabricated on the ground and often fixed by the ladder frame and temporary support. The above method is time-consuming, labor-intensive and inefficient. When welding the butt joints, there is a lack of installation tools for positioning, fixing and supporting, and there is a risk of tipping over during the assembly.

[0006] In view of the above factors, this utility model provides a special support for welding stairs, which facilitates welding in use, can be positioned, fixed and supported by installation fixtures to improve work efficiency, and at the same time avoids the risk of the steel plate structure of the stairs to be welded tipping over when assembled. Utility Model Content

[0007] The purpose of this utility model is to provide a special support for welding stairs to solve the problems mentioned in the background art.

[0008] The purpose of this utility model is achieved through the following technical solution: a special support for welding stairs, including an installation platform and step frames arranged on both sides of the installation platform, welding fixtures are provided on both sides of the installation platform, and the welding fixtures can slide on both sides of the installation platform;

[0009] The welding fixture is provided in one or two sets. The welding fixture includes a slide rail and a sliding seat that is slidably connected to the slide rail. A support frame is detachably connected to the sliding seat, and an auxiliary platform is fixedly provided on the support frame.

[0010] The auxiliary platform is provided with a slot that mates with the stair slab frame, and an inner frame that is detachably connected to the auxiliary platform is provided on the side opposite to the stair slab frame.

[0011] Furthermore, the bottom of the sliding seat is provided with a sliding groove, which cooperates with the slide rail, and the slide rail is installed on both sides of the installation platform in an underground manner;

[0012] The sliding seat has interlocking plates spaced apart on its end face. The interlocking plates are engaged with the bottom fixed mounting base of the support frame by plugging in and being fixed by bolts.

[0013] Furthermore, the auxiliary platform is a U-shaped frame formed by a steel structure, and the auxiliary platform is detachably connected to the inner frame;

[0014] The inner frame has a channel opening that is opposite to the slot on the auxiliary platform.

[0015] Furthermore, the auxiliary platform and the inner frame are detachable via a sliding connection;

[0016] The auxiliary platform is fitted with a U-shaped frame formed by a steel structure and a track groove on the inner frame.

[0017] Furthermore, the bottom plane of the channel opening on the inner frame is on the same plane as the bottom plane of the slot on the auxiliary platform.

[0018] Furthermore, the passageway provided on the inner frame extends to one side of the stair tread frame, and the stair tread frame fits into the passageway.

[0019] Furthermore, the track grooves provided on the inner frame are located on both sides of the inner frame;

[0020] The slots and channels on the auxiliary platform and the inner frame are configured with the same rectangular structure.

[0021] The auxiliary platform and the inner frame have slots and channels with stepped supports installed inside them. The stepped supports are installed along the lateral direction of the auxiliary platform and the inner frame.

[0022] Furthermore, the length of the step support is the same as the length of the auxiliary platform and the inner frame.

[0023] Furthermore, the support frame is in the shape of an "8" and is a hydraulic cylinder, with the support frames supported by I-beams.

[0024] Furthermore, the installation platform is provided with a sliding docking assembly, which includes a supporting sliding assembly and a supporting positioning assembly;

[0025] The support sliding assembly includes a first platform that is slidably connected to the mounting platform, and hydraulic support rods arranged in a matrix on the first platform;

[0026] The support positioning assembly includes a second platform that is slidably connected to the mounting platform. A pressure plate is connected to the second platform via an electric cylinder. The pressure plate protrudes outward from the side near the auxiliary platform, and a positioning hole is provided on the outward protruding part of the pressure plate.

[0027] A method for applying a special welding bracket for stairs includes the following steps;

[0028] The installation platform and the stepping frames set on both sides of the installation platform are equipped with welding fixtures on both sides of the installation platform, and the welding fixtures can slide on both sides of the installation platform.

[0029] The auxiliary platform is connected to the inner frame in cooperation with the auxiliary platform, which is a U-shaped frame formed by steel structure. The auxiliary platform is detachably connected to the inner frame, and the inner frame is provided with a channel opening that is opposite to the slot provided on the auxiliary platform.

[0030] During use, the steel plate structure of the stair slab to be welded is installed in the slots set in the inner frame and the slots set in the auxiliary platform. The installers carry out welding on the installation platform.

[0031] The stair slab to be welded is supported by a sliding support assembly. A sliding docking assembly is provided on the installation platform. The sliding docking assembly includes a sliding support assembly and a support positioning assembly. The sliding support assembly includes a first platform that is slidably connected to the installation platform. Hydraulic support rods are arranged in a matrix on the first platform.

[0032] When the above structure is used, the supporting sliding assembly supports the steel plate structure of the stair slab to be welded on the installation platform. The hydraulic support rod of the supporting sliding assembly is equipped with a supporting plate, which makes contact with the steel plate structure of the stair slab to be welded.

[0033] When the above structure is used, two symmetrical sets of hydraulic support rods are arranged on the first platform on the mounting platform, and the hydraulic support rods are spaced apart on the first platform.

[0034] The support positioning assembly includes a second platform that is slidably connected to the installation platform. A pressure plate is connected to the second platform via an electric cylinder. The pressure plate protrudes outward from the side near the auxiliary platform, and a positioning hole is provided on the outward protruding part of the pressure plate.

[0035] When the above structure is used, after the stair slab steel plate structure to be welded is supported and welded by the support plate on the hydraulic support rod of the support sliding group, the second platform is moved closer to the stair slab steel plate structure to be welded by moving the second platform to the stair slab steel plate structure to be welded by pressing and fixing the stair slab steel plate structure to be welded by the pressure plate on the electric cylinder.

[0036] During fixing, the positioning holes on the outward protruding part of the pressure plate are used to install bolts, which are then fitted with bolt holes on the mounting platform for fixing.

[0037] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0038] In this invention, the horizontal steel plate, vertical steel plate, and side sealing steel plate of each step can serve as templates themselves, eliminating the need for additional formwork or steel reinforcement binding. This makes construction simple and shortens the construction period.

[0039] This utility model is designed to facilitate the connection between the auxiliary platform 34 and the inner frame to support the steel plate structure of the stair slab to be welded during use. The steel plate structure of the stair slab to be welded includes horizontal and vertical steel plates for each step. The horizontal and vertical steel plates are supported at both ends by the inner frame. The auxiliary platform is a U-shaped frame formed by the steel structure. The auxiliary platform is detachably connected to the inner frame and fixed with bolts. When disassembly is required, the bolts can be removed directly. In order to facilitate sliding detachment after support during use, the detachable connection between the auxiliary platform and the inner frame is a sliding connection.

[0040] The inner frame of this utility model is provided with a channel opening that is opposite to the slot provided on the auxiliary platform. The auxiliary platform is formed by a U-shaped frame of steel structure and cooperates with the track slot on the inner frame.

[0041] This utility model uses a sliding support assembly to support the steel plate structure of the stair slab to be welded on an installation platform. A supporting plate is mounted on the hydraulic support rod of the sliding support assembly, and the supporting plate contacts and supports the steel plate structure to be welded. In use, two symmetrical sets of hydraulic support rods are positioned on the first platform, with the hydraulic support rods spaced apart on the first platform. The support positioning assembly includes a second platform slidably connected to the installation platform. A pressure plate is connected to the second platform via an electric cylinder. The pressure plate protrudes outward from the side near the auxiliary platform, and the protruding portion of the pressure plate has positioning holes. In use, after the steel plate structure of the stair slab to be welded is supported and welded using the hydraulic support rods of the sliding support assembly and the supporting plate, the second platform is moved closer to the steel plate structure near the support positioning assembly. The pressure plate on the electric cylinder then presses and fixes the steel plate structure to be welded. During fixing, the positioning holes on the protruding portion of the pressure plate are used to mount bolts, which engage with bolt holes on the installation platform for fixation.

[0042] This utility model can be supported on both sides of the installation platform during use, which facilitates welding in use. It can be positioned, fixed and supported by installation tools, improving work efficiency. At the same time, it avoids the risk of the steel plate structure of the stair slab to be welded tipping over during assembly. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0044] Figure 2 This is a schematic diagram of the slide rail / sliding seat assembly of this utility model;

[0045] Figure 3 This is an enlarged schematic diagram of the welding fixture of this utility model;

[0046] Figure 4 This is a schematic diagram of the inner frame of this utility model;

[0047] Figure 5 This is a schematic diagram of the sliding seat of this utility model having a docking plate;

[0048] Figure 6 This is a partially enlarged schematic diagram of the inner frame of this utility model;

[0049] Figure 7 This is a schematic diagram showing the connection between the auxiliary platform and the inner frame of this utility model;

[0050] Figure 8 This is a schematic diagram of a step support installed inside the passageway of this utility model;

[0051] Figure 9 This is an enlarged schematic diagram of the support sliding assembly of this utility model;

[0052] Figure 10 This is an enlarged schematic diagram of the support and positioning assembly of this utility model. Detailed Implementation

[0053] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] like Figure 1-10 As shown, a special support for welding stairs includes an installation platform 1 and step frames 2 arranged on both sides of the installation platform 1. Welding fixtures 3 are arranged on both sides of the installation platform 1, and the welding fixtures 3 can slide on both sides of the installation platform 1.

[0057] The welding fixture 3 is provided in one or two sets. The welding fixture 3 includes a slide rail 31 and a slide seat 32 that is slidably connected to the slide rail 31. A support frame 33 is detachably connected to the slide seat 32. An auxiliary platform 34 is fixedly provided on the support frame 33.

[0058] In use, the slide rail 31 is slidably connected to the slide seat 32, which is then positioned and fixed in place by a pin.

[0059] The auxiliary platform 34 is provided with a slot that mates with the stair tread frame, and an inner frame 4 is provided on the side of the auxiliary platform 34 opposite to the stair tread frame, which is detachably connected to the auxiliary platform 34.

[0060] To facilitate disassembly and replacement during use, the bottom of the sliding seat 32 is provided with a sliding groove 5, which cooperates with the slide rail 31. The slide rail 31 is installed on both sides of the installation platform 1 in an underground manner.

[0061] The sliding seat 32 is provided with a connecting plate 6 at intervals on its end face. The connecting plate 6 is engaged with the bottom fixed mounting seat of the support frame 33 by plugging in and is fixed by bolts.

[0062] In order to facilitate the connection between the auxiliary platform 34 and the inner frame during use, the auxiliary platform 34 is a U-shaped frame formed by steel structure, and the auxiliary platform 34 is detachably connected to the inner frame 4.

[0063] The inner frame 4 is provided with a channel opening 7, which is opposite to the slot 8 provided on the auxiliary platform 34.

[0064] In order to facilitate sliding detachment after support during use, the auxiliary platform 34 and the inner frame 4 are detachable by sliding connection.

[0065] The auxiliary platform 34 is fitted with the track groove on the inner frame 4 through a U-shaped frame formed by the steel structure.

[0066] The bottom plane of the channel opening 7 on the inner frame 4 is on the same plane as the bottom plane of the slot 8 on the auxiliary platform 34.

[0067] In order to facilitate the support of the steel plate structure of the stair slab to be welded at both ends by the inner frame 4 during use, the channel opening 7 provided on the inner frame 4 extends to one side of the stair slab frame, and the stair slab frame fits into the channel opening 7.

[0068] In order to facilitate the use of the inner frame 4 to support the steel plate structure of the stair slab to be welded at both ends, the track groove 9 provided on the inner frame 4 is located on both sides of the inner frame 4.

[0069] The slots and channels on the auxiliary platform 34 and the inner frame 4 are set with the same rectangular structure.

[0070] A step support 10 is provided in the slot 8 and channel 7 opened on the auxiliary platform 34 and the inner frame 4. The step support 10 is arranged along the transverse direction of the auxiliary platform 34 and the inner frame 4.

[0071] Furthermore, the length of the step support 10 is the same as the length of the auxiliary platform 34 and the inner frame 4.

[0072] In use, the above structure is supported by step supports 10 installed in the slots 8 and passageways 7 on the auxiliary platform 34 and the inner frame 4, which support the steel plate structure of the stair slab to be welded.

[0073] After the steel plate structure of the stair slab to be welded is connected and welded, the bolts connecting the auxiliary platform 34 and the inner frame 4 are removed, the sliding support frame 33 separates the auxiliary platform 34 from the inner frame 4 and moves it forward, and then the inner frames 4 at both ends are disassembled.

[0074] To facilitate height adjustment via the support frame 33 during use, the support frame 33 is V-shaped and is a hydraulic cylinder, with I-beams supporting each other.

[0075] To facilitate the support of the stair slab to be welded by the support sliding assembly 11 during use, the installation platform 1 is provided with a sliding docking assembly, which includes the support sliding assembly 11 and the support positioning assembly 12.

[0076] The support sliding assembly 11 includes a first platform 13 that is slidably connected to the mounting platform 1, and hydraulic support rods 14 arranged in a matrix on the first platform 13;

[0077] When the above structure is used, the support sliding assembly 11 supports the steel plate structure of the stair slab to be welded on the installation platform 1. The hydraulic support rod 14 of the support sliding assembly 11 is provided with a support plate, and the support plate contacts and supports the steel plate structure of the stair slab to be welded.

[0078] When the above structure is used, the first platform 13 is provided with two symmetrical sets on the mounting platform 1, and the hydraulic support rods 14 are spaced apart on the first platform 13.

[0079] The support positioning group 12 includes a second platform 15 that is slidably connected to the mounting platform 1. A pressure plate 16 is connected to the second platform 15 via an electric cylinder. The pressure plate 16 protrudes outward from the side near the auxiliary platform 34, and the protruding part of the pressure plate 16 is provided with positioning holes.

[0080] When the above structure is used, after the support plate on the hydraulic support rod 14 of the support sliding group 11 supports and welds the stair slab steel plate structure to be welded, the second platform 15 is moved closer to the stair slab steel plate structure to be welded by moving the second platform 15 to the stair slab steel plate structure to be welded by pressing and fixing the stair slab steel plate structure to be welded by the pressure plate 16 on the electric cylinder.

[0081] During fixing, the positioning holes of the pressure plate 16 are provided on the outward protrusions, and the mounting bolts are fitted with the bolt holes provided on the mounting platform 1 for fixing.

[0082] A method for applying a special welding bracket for stairs includes the following steps;

[0083] The installation platform and the stepping frames set on both sides of the installation platform are equipped with welding fixtures on both sides of the installation platform, and the welding fixtures can slide on both sides of the installation platform.

[0084] The auxiliary platform is connected to the inner frame in cooperation with the auxiliary platform, which is a U-shaped frame formed by steel structure. The auxiliary platform is detachably connected to the inner frame, and the inner frame is provided with a channel opening that is opposite to the slot provided on the auxiliary platform.

[0085] During use, the steel plate structure of the stair slab to be welded is installed in the slots set in the inner frame and the slots set in the auxiliary platform. The installers carry out welding on the installation platform.

[0086] The stair slab to be welded is supported by a sliding support assembly. A sliding docking assembly is provided on the installation platform. The sliding docking assembly includes a sliding support assembly and a support positioning assembly. The sliding support assembly includes a first platform that is slidably connected to the installation platform. Hydraulic support rods are arranged in a matrix on the first platform.

[0087] When the above structure is used, the supporting sliding assembly supports the steel plate structure of the stair slab to be welded on the installation platform. The hydraulic support rod of the supporting sliding assembly is equipped with a supporting plate, which makes contact with the steel plate structure of the stair slab to be welded.

[0088] When the above structure is used, two symmetrical sets of hydraulic support rods are arranged on the first platform on the mounting platform, and the hydraulic support rods are spaced apart on the first platform.

[0089] The support positioning assembly includes a second platform that is slidably connected to the installation platform. A pressure plate is connected to the second platform via an electric cylinder. The pressure plate protrudes outward from the side near the auxiliary platform, and a positioning hole is provided on the outward protruding part of the pressure plate.

[0090] When the above structure is used, after the stair slab steel plate structure to be welded is supported and welded by the support plate on the hydraulic support rod of the support sliding group, the second platform is moved closer to the stair slab steel plate structure to be welded by moving the second platform to the stair slab steel plate structure to be welded by pressing and fixing the stair slab steel plate structure to be welded by the pressure plate on the electric cylinder.

[0091] During fixing, the positioning holes on the outward protruding part of the pressure plate are used to install bolts, which are then fitted with bolt holes on the mounting platform for fixing.

[0092] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0093] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stair welding dedicated support characterized by: It includes an installation platform (1) and step frames (2) arranged on both sides of the installation platform (1). Welding fixtures (3) are provided on both sides of the installation platform (1), and the welding fixtures (3) can slide on both sides of the installation platform (1). The welding fixture (3) is provided in one or two sets. The welding fixture (3) includes a slide rail (31) and a sliding seat (32) that is slidably connected to the slide rail (31). A support frame (33) is detachably connected to the sliding seat (32). An auxiliary platform (34) is fixedly provided on the support frame (33). The auxiliary platform (34) is provided with a slot that cooperates with the stair slab frame, and the auxiliary platform (34) is provided with an inner frame (4) that is detachably connected to the auxiliary platform (34) on the side opposite to the stair slab frame.

2. The stair welding dedicated support according to claim 1, characterized in that: The bottom of the sliding seat (32) is provided with a sliding groove (5), which cooperates with the slide rail (31). The slide rail (31) is installed on both sides of the installation platform (1) in a buried manner. The sliding seat (32) is provided with a connecting plate (6) at intervals on its end face. The connecting plate (6) is engaged with the bottom fixed mounting seat of the support frame (33) by plugging and is fixed by bolts.

3. The stair welding dedicated support according to claim 2, characterized in that: The auxiliary platform (34) is a U-shaped frame formed by steel structure, and the auxiliary platform (34) is detachably connected to the inner frame (4). The inner frame (4) is provided with a channel opening (7) which is opposite to the slot (8) provided on the auxiliary platform (34).

4. The stair welding dedicated support according to claim 3, characterized in that: The auxiliary platform (34) and the inner frame (4) are detachable by a sliding connection; The auxiliary platform (34) is fitted with the track groove on the inner frame (4) through a U-shaped frame formed by the steel structure.

5. The stair welding dedicated support according to claim 4, characterized in that: The bottom plane of the channel opening (7) on the inner frame (4) is on the same plane as the bottom plane of the slot (8) on the auxiliary platform (34).

6. The stair welding dedicated support of claim 5, wherein: The passageway (7) provided on the inner frame (4) extends to one side of the stair board frame, and the stair board frame fits into the passageway (7).

7. The stair welding dedicated support according to claim 6, characterized in that: The track grooves (9) provided on the inner frame (4) are located on both sides of the inner frame (4); The slots and channels on the auxiliary platform (34) and the inner frame (4) are set with the same rectangular structure; The auxiliary platform (34) and the inner frame (4) have slots (8) and passageways (7) with step supports (10) provided in them. The step supports (10) are arranged along the transverse direction of the auxiliary platform (34) and the inner frame (4). Furthermore, the length of the step support (10) is the same as the length of the auxiliary platform (34) and the inner frame (4).

8. The stair welding dedicated support according to claim 7, characterized in that: The support frame (33) is in the shape of an octagon, and the support frame (33) is a hydraulic cylinder. The support frames (33) are supported by I-beams.

9. The stair welding dedicated support according to claim 8, characterized in that: The installation platform (1) is provided with a sliding docking group, which includes a supporting sliding group (11) and a supporting positioning group (12). The support sliding assembly (11) includes a first platform (13) slidably connected to the mounting platform (1), on which hydraulic support rods (14) are arranged in a matrix. The support positioning group (12) includes a second platform (15) that is slidably connected to the installation platform (1). A pressure plate (16) is connected to the second platform (15) via an electric cylinder. The pressure plate (16) protrudes outward from the side near the auxiliary platform (34), and the protruding part of the pressure plate (16) is provided with positioning holes.

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