Temporary supporting device for assembling steel spiral staircase

Abstract

The invention discloses a temporary supporting device for assembling a steel spiral stair. The temporary supporting device comprises a bottom support, a stand column, a top adjusting seat and a supporting plate. The stand column is connected to the bottom support, the top adjusting seat is provided with a seat body, a lifting assembly and a swing assembly, the seat body is connected to the stand column, the lifting assembly is slidably connected to the seat body, the lifting assembly can ascend and descend along the seat body and is fixed, and the swing assembly is connected to the lifting assembly and is connected to the lifting assembly in a swing mode. The swing assembly can be fixed to the lifting assembly. The supporting plate is connected to the swing assembly, and the swing assembly swings to adjust the angle of the supporting plate. According to the temporary supporting device for assembling the steel spiral stair, the supporting height and the supporting angle of the temporary supporting device can be adjusted to a certain degree. The overall height is adjusted by lifting the lifting assembly along the seat body, and the swing assembly swings relative to the lifting assembly to adjust the supporting angle, so that the device can temporarily support steel spiral stairs with different heights and angles, and the steel spiral stairs are more convenient to assemble.

Description

Technical Field

[0001] The invention relates to the technical field of steel spiral staircase supports, and in particular to a temporary support device for assembling a steel spiral staircase. Background Art

[0002] The on-site hoisting of the rotating arc-shaped components of the spiral staircase is cumbersome, and high requirements are placed on the component processing accuracy. The processing plant pre-assembles the spiral staircase steel components layer by layer to ensure component processing accuracy. During the pre-assembly at the processing plant, relevant measurement data and measurement control points and other information data should be sent to the site in a timely manner to guide the on-site installation work. The stairs are installed on-site using the support in-situ assembly method, and temporary support devices are required for the assembly of steel spiral staircases during the support process.

[0003] At present, the installation sequence of spiral staircases on each floor is: temporary support installation → installation of the first section of spiral staircase → welding of component butt welds → continue to install temporary supports in the same way → continue to install each section of spiral staircase in the same way → until the spiral staircase is connected to the top steel platform → temporary support unloading (from top to bottom) → node anti-corrosion coating → node patterned steel plate installation → step concrete pouring → fire retardant coating spraying. In the process of assembling steel spiral staircases, temporary support devices are required. The temporary supports of spiral staircases are divided into ground supports and supports between ladder beams. When the existing support device is used to support between two spiral staircases, due to the inclined setting of the steel spiral staircase and the inclination angle is not exactly the same everywhere, the staff basically needs to cut each support into support workpieces of corresponding length and inclination again when using it in order to stably support it, which makes it more troublesome for the staff to support the inclined support of the steel spiral staircase, and to a certain extent prolongs the installation time of the support structure of the steel spiral staircase, and increases the labor intensity of the staff.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] In order to solve one of the above technical problems, the present invention provides a temporary support device for assembling a steel spiral staircase.

[0006] This application provides the following technical solutions: A temporary support device for assembling a steel spiral staircase, comprising: Bottom support; a column connected to the bottom support; A top adjustment seat, comprising a seat body, a lifting assembly, and a swing assembly, wherein the seat body is connected to the column, the lifting assembly is slidably connected to the seat body, the lifting assembly can be lifted and lowered along the seat body and fixed, the swing assembly is connected to the lifting assembly, the swing assembly is swingably connected to the lifting assembly, and the swing assembly can be fixed to the lifting assembly; A support plate is connected to the swing assembly, and the swing assembly can adjust the angle of the support plate by swinging.

[0007] Optionally, the seat body includes a base plate and a guide frame; The bottom plate is vertically connected to the column; The guide frame is vertically connected to the bottom plate, and a plurality of positioning holes are provided on the guide frame, and the positioning holes are sequentially spaced along the height direction of the column; The lifting assembly is slidably connected to the guide frame, and one end of a fastener can pass through the lifting assembly and be connected to a corresponding positioning hole to fix the height of the lifting assembly.

[0008] Optionally, the guide frame includes two side guide plates and a middle plate; The two side guide plates are parallel to each other; The middle plate is located between the two side guide plates and is respectively connected to the two side guide plates; Two slide grooves are provided on the side guide plate, and the two slide grooves are located on both sides of the middle plate in the thickness direction. A plurality of positioning holes are provided on the side guide plate between the two slide grooves, and the positioning holes are sequentially spaced along the movable direction of the lifting assembly. The lifting assembly passes through the two sliding grooves, and one end of a fastener can pass through the lifting assembly and be connected to the corresponding positioning hole.

[0009] Optionally, the lifting assembly includes two inner plates and two outer fixing frames; The two inner plates are located between the two side guide plates and are respectively provided on both sides of the middle plate in the thickness direction; The outer fixing frame includes an outer end plate and two slide plates vertically connected to the outer end plate, the outer end plate is located on the outer side of the side guide plate, and the two slide plates respectively pass through the two slide grooves on the corresponding side guide plate and are respectively connected to the corresponding inner side plate; One end of the fastener can pass through the outer end plate and be connected to the corresponding positioning hole.

[0010] Optionally, trapezoidal positioning grooves are provided on both side end surfaces of the inner side plate; A trapezoidal sliding block is provided on the side of the slide away from the outer end plate; The trapezoidal sliding block is inserted into the trapezoidal positioning groove; The positioning piece is passed through the inner plate and the trapezoidal slider along the thickness direction of the inner plate to fix the inner plate and the trapezoidal slider.

[0011] Optionally, the swing assembly is hinged to the inner plate; A plurality of pre-positioning grooves are provided on the inner side plate, and the pre-positioning grooves are arranged in sequence along the circumference of the swing axis of the swing assembly; The swing assembly is provided with a positioning boss, which is sequentially engaged with the pre-positioning grooves during the swinging process of the swing assembly; Wherein, after the positioning boss is inserted into the pre-positioning groove, the swing assembly is further welded to the inner side plate.

[0012] Optionally, the swing assembly is hinged to the inner plate; The inner plate is provided with a plurality of fixing holes, and the fixing holes are sequentially arranged along the circumference of the swing axis of the swing assembly; The swing assembly is provided with a positioning matching hole, and during the swinging process of the swing assembly, the positioning matching hole is connected to each of the fixing holes in sequence; The positioning piece can be passed through the positioning matching hole and the corresponding fixing hole to fix the angle of the swing component.

[0013] Optionally, the support plate includes a middle support plate and two side support plates, and the two side support plates are hinged to two sides of the middle support plate respectively; The middle support plate is connected to the swing assembly; The support plate has a folded state and an unfolded state. In the folded state, the two side support plates are both attached to the outer wall surface of the middle support plate in the direction perpendicular to the thickness. In the unfolded state, the two side support plates are both unfolded to the plane where the middle support plate is located.

[0014] Optionally, the bottom support includes a straight base and an inclined base, the straight base is fixedly connected to the column, the inclined base is detachably connected to the straight base, the inclined base has an inclined supporting surface, and the inclined supporting surface and the straight base have an angle.

[0015] Optionally, one end of the inclined base is thick and the other end is thin, and a positioning pin is provided on one side of the thick end of the inclined base.

[0016] By adopting the above technical solution, this application has the following beneficial effects: The temporary support device for assembling a steel spiral staircase provided in this application features a top support plate mounted on a top adjustable seat that swings and adjusts its position along the length of the column. This allows for adjustment of both the support height and angle of the temporary support device. The overall height is adjusted by raising and lowering the lifting assembly along the seat, while the support angle is adjusted by swinging the swing assembly relative to the lifting assembly. This device can provide temporary support for steel spiral staircases of varying heights and angles, facilitating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, as part of this application, are intended to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are intended to explain the present invention but do not constitute undue limitations thereon. Obviously, the drawings described below are merely examples, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 A schematic diagram showing the three-dimensional structure of a temporary support device for assembling a steel spiral staircase provided in an embodiment of the present invention; Figure 2 A schematic structural diagram showing the coordination of a partial straight base and an inclined base of a temporary support device for assembling a steel spiral staircase provided by an embodiment of the present invention; Figure 3 A schematic structural diagram illustrating a top adjustment seat of a temporary support device for assembling a steel spiral staircase provided in an embodiment of the present invention; Figure 4 A schematic structural diagram of a base body of a temporary support device for assembling a steel spiral staircase provided in an embodiment of the present invention is shown; Figure 5 A schematic structural diagram showing the coordination of a support plate, a lifting assembly, and a swing assembly of a temporary support device for assembling a steel spiral staircase provided by an embodiment of the present invention; Figure 6 A schematic cross-sectional view of the coordination between the middle support plate and the swing assembly of a temporary support device for assembling a steel spiral staircase provided by an embodiment of the present invention is shown; Figure 7 A schematic structural diagram showing a case where the positioning pins in the bottom support of the temporary support device for assembling a steel spiral staircase provided by an embodiment of the present invention are bolts; Figure 8 A structural schematic diagram showing a case where the positioning pins in the bottom support of the temporary support device for assembling a steel spiral staircase provided by an embodiment of the present invention are sliding sleeves and latches.

[0019] In the figure: bottom support 1, flat base 11, trapezoidal groove 111, through hole 112, inclined base 12, inclined support surface 121, fitting surface 122, matching slider 123, recessed portion 124, threaded through groove 125, positioning pin 13, sliding sleeve 1351, latch 1352, column 2, top adjustment seat 3, seat body 31, bottom plate 311, guide frame 312, side guide plate 3121, slide groove 31 211, positioning hole 31212, middle plate 3122, lifting assembly 32, inner plate 321, trapezoidal positioning groove 3211, pre-positioning groove 3212, outer fixing frame 322, outer end plate 3221, slide plate 3222, trapezoidal slider 3223, swing assembly 33, positioning boss 331, spring 332, fastener 34, support plate 4, middle support plate 41, side support plate 42, limit plate 43. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0023] like Figures 1 to 8 As shown, an embodiment of the present application provides a temporary support device for assembling a steel spiral staircase, comprising a bottom support 1, a column 2, a top adjustment seat 3, and a support plate 4. The column 2 is connected to the bottom support 1, and the top adjustment seat 3 comprises a seat body 31, a lifting assembly 32, and a swing assembly 33. The seat body 31 is connected to the column 2, the lifting assembly 32 is slidably connected to the seat body 31, and the lifting assembly 32 can be lifted and lowered along the seat body 31 and fixed. The swing assembly 33 is connected to the lifting assembly 32, and the swing assembly 33 is swingably connected to the lifting assembly 32 and can be fixed to the lifting assembly 32. The support plate 4 is connected to the swing assembly 33, and the swing assembly 33 can swing to adjust the angle of the support plate 4.

[0024] The temporary support device for assembling a steel spiral staircase provided herein features a top support plate 4 mounted on a top adjustable seat 3 that swings and adjusts its position along the length of a column 2. This allows for adjustment of both the support height and angle. The overall height is adjusted by raising and lowering a lifting assembly 32 along a seat 31, while the support angle is adjusted by swinging a swing assembly 33 relative to the lifting assembly 32. This allows the device to temporarily support steel spiral staircases of varying heights and angles, facilitating assembly.

[0025] In some possible embodiments, the base 31 includes a base plate 311 and a guide frame 312. The base plate 311 is vertically connected to the column 2. The guide frame 312 is vertically connected to the base plate 311. A plurality of positioning holes 31212 are provided on the guide frame 312. The positioning holes 31212 are sequentially spaced along the height direction of the column 2. The lifting assembly 32 is slidably connected to the guide frame 312. One end of a fastener 34 can pass through the lifting assembly 32 and connect to a corresponding positioning hole 31212 to fix the height of the lifting assembly 32. The height of the entire support device can be adjusted by changing the lifting assembly 32 and the fastener 34 to cooperate with different positioning holes 31212. The fastener 34 cooperates with the positioning holes 31212 to ensure that the adjusted height is stable, thereby ensuring support stability.

[0026] In some possible embodiments, the guide frame 312 includes two side guide plates 3121 and a middle plate 3122. The two side guide plates 3121 are parallel to each other, and the middle plate 3122 is located between and connects the two side guide plates 3121. Two slide slots 31211 are provided on the side guide plates 3121, located on either side of the middle plate 3122 along the thickness direction. A plurality of positioning holes 31212 are provided on the side guide plates 3121, located between the two slide slots 31211. Each positioning hole 31212 is sequentially spaced along the direction of movement of the lifting assembly 32. The lifting assembly 32 is disposed through the two slide slots 31211, and one end of a fastener 34 can pass through the lifting assembly 32 and connect to a corresponding positioning hole 31212. The chute 31211 defines the sliding path of the lifting assembly 32. Guide plates are provided on both sides, each with two chute 31211. This effectively guides the lifting assembly 32 and ensures that both sides of the lifting assembly 32 are balanced during the lifting process, preventing any skew. The positioning hole 31212, located between the two chute 31211, provides greater stability after fixation. With the chute 31211 in place, the lifting assembly 32 will not skew in one direction.

[0027] In some possible embodiments, the lifting assembly 32 includes two inner plates 321 and two outer fixing frames 322. The two inner plates 321 are located between the two side guide plates 3121 and are disposed on either side of the middle plate 3122 along the thickness direction. The outer fixing frames 322 include an outer end plate 3221 and two slides 3222 perpendicularly connected to the outer end plates 3221. The outer end plate 3221 is located on the outer side of the side guide plates 3121. The two slides 3222 respectively pass through the two slide slots 31211 on the corresponding side guide plates 3121 and are respectively connected to the corresponding inner plates 321. One end of the fastener 34 can pass through the outer end plate 3221 and connect to the corresponding positioning hole 31212. The lifting assembly 32 is divided into the inner plate 321 and the outer fixing frames 322, and the separate arrangements facilitate installation. The electroplated slide plate 3222 that passes through the slide groove 31211 can prevent the connection position from being located in the slide groove 31211, thereby ensuring smooth sliding.

[0028] In some possible implementations, trapezoidal positioning grooves 3211 are formed on both end surfaces of the inner plate 321. Trapezoidal sliders 3223 are provided on the side of the slide plate 3222 facing away from the outer end plate 3221. The trapezoidal sliders 3223 are inserted into the trapezoidal positioning grooves 3211. Positioning members are provided through the inner plate 321 and the trapezoidal sliders 3223 along the thickness direction of the inner plate 321 to secure the inner plate 321 and the trapezoidal sliders 3223. The use of the trapezoidal sliders connected to the trapezoidal slide grooves 31211 allows for lateral positioning after connection. Combined with the positioning of the positioning members, this ensures a secure connection between the inner plate 321 and the outer fixing bracket 322, preventing relative displacement.

[0029] In some possible implementation schemes, there are multiple ways for the swing assembly 33 to be connected to the inner plate 321 after adjusting its position. This application specifically discloses the following two ways, but is not limited to these two ways.

[0030] The first connection method between the swing assembly 33 and the inner plate 321: The swing assembly 33 is hingedly connected to the inner plate 321. The inner plate 321 is provided with a plurality of pre-positioning grooves 3212, which are arranged sequentially along the circumference of the swing axis of the swing assembly 33. The swing assembly 33 is provided with positioning bosses 331. During the swinging process of the swing assembly 33, the positioning bosses 331 sequentially engage with the pre-positioning grooves 3212. After the positioning bosses 331 engage with the pre-positioning grooves 3212, the swing assembly 33 is further welded to the inner plate 321.

[0031] This connection method swings the swing assembly 33 to the appropriate position, and the positioning boss 331 is inserted into the corresponding pre-positioning groove 3212, maintaining the initial stability of the swing assembly 33, so that the swing assembly 33 can be welded to the inner plate 321 without shaking. This arrangement not only makes the final welding and positioning of the swing assembly 33 more convenient, but also ensures a precise welding position and an accurate support angle.

[0032] Further, in some possible embodiments, such as Figure 6 As shown, the swinging member is provided with a positioning slot, into which the positioning boss 331 is slidably inserted. A spring 332 is disposed between the positioning boss 331 and the bottom of the positioning slot. The end of the spring 332, distal from the positioning boss 331, is fixedly connected to the inner wall of the positioning slot. The positioning boss 331 can be completely embedded in the positioning slot. In this way, a relatively firm push on the swinging assembly 33 is sufficient to switch the positioning slot into which the positioning boss 331 engages. After the thrust is released, the positioning boss 331 remains inserted into the positioning slot under the force of the spring 332, maintaining a certain degree of stability, facilitating subsequent welding.

[0033] The second connection method between the swing assembly 33 and the inner plate 321: The swing assembly 33 is hingedly connected to the inner plate 321. The inner plate 321 is provided with multiple fixing holes, which are arranged sequentially along the circumference of the swing axis of the swing assembly 33. The swing assembly 33 is provided with positioning holes. During the swinging process of the swing assembly 33, the positioning holes are sequentially connected to the fixing holes. Positioning members can be inserted into the positioning holes and corresponding fixing holes to fix the angle of the swing assembly 33. The angle of the swing assembly is adjusted by adjusting the different positioning holes 31212 and the fixing blocks.

[0034] The second connection method is more convenient than the first, but the connection stability is relatively poor, and it is suitable for use in situations with low weight. The first connection method is relatively complicated to operate, but the positioning is very firm, and it is suitable for bridges that require greater support force, longer support time, and high precision.

[0035] In some possible implementation schemes, the support plate 4 includes a central support plate 41 and two side support plates 42, the two side support plates 42 are respectively hinged to the two sides of the central support plate 41, and the central support plate 41 is connected to the swing assembly 33. The support plate 4 has a folded state and an unfolded state. In the folded state, the two side support plates 42 are both attached to the outer wall surface of the central support plate 41 in the direction perpendicular to the thickness. In the unfolded state, the two side support plates 42 are both unfolded to the plane where the central support plate 41 is located. The support plate 4 is configured as a foldable plate. When in use, the support plate 4 is unfolded to increase the support area and improve the support stability. When not in use, it can be folded up for easy transportation and storage. Large-area plates are inconvenient to install. The support plate 4 can be folded up during installation and adjustment, making installation and adjustment more convenient.

[0036] In some possible implementation schemes, the middle support plate 41 is hinged with side support plates 42 on both sides along the swinging direction, and two corresponding side support plates 42 are respectively provided with limiting plates 43 on one side of the middle support plate 41 close to the top adjustment seat 3. When the two side support plates 42 are in the unfolded state, the bottom support 1 of the two side support plates 42 is on the limiting plate 43.

[0037] In some possible embodiments, the bottom support 1 includes a straight base 11 and an inclined base 12, wherein the straight base 11 is fixedly connected to the column 2, and the inclined base 12 is detachably connected to the straight base 11, and the inclined base 12 has an inclined support surface 121, and the inclined support surface 121 and the straight base 11 have an angle. The lower part of the support device of the lowest level of the spiral staircase is supported on the ground, and needs to be supported by a base with a support surface that is at an angle of 90 degrees to the column 2. The bottom of the upper support device except the lowest level must be supported on the adjacent staircase connection below. The adjacent staircase connection has a wider support surface that can provide more stable support. However, the adjacent staircase connection is an inclined surface, and the support device needs to have a base with a support surface that is not at an angle of 90 degrees to the column 2. The upright 2 itself is connected to a straight base 11 with a 90-degree angle to the upright 2. A detachable inclined base 12 with a non-90-degree angle to the upright 2 is provided, so that the base can adapt to various usage environments. It only needs to be disassembled and assembled by the inclined base 12. If a support with a different inclination is encountered, only the inclined base 12 with a different inclination can be replaced.

[0038] Furthermore, the side of the straight base 11 facing away from the column 2 is provided with a trapezoidal groove 111 with a larger width on the side of the groove 111 closer to the column 2 than on the side facing away from the column 2. The inclined base 12's support surface 121, facing away from the inclined support, is provided with a mating surface 122 parallel to the straight base 11. This mating surface 122 is provided with a matching slide 123, also trapezoidal in cross section, that fits the trapezoidal groove 111. This trapezoidal sliding connection ensures that the inclined base 12 will not fall along the extension of the column 2 after insertion. This preliminary positioning is performed to facilitate subsequent installation.

[0039] Furthermore, the outer periphery of the straight base 11 is provided with a plurality of through holes 112, which extend in the same direction as the extension of the pillar 2. One end of the fixing member passes through the through hole 112 and is fixedly connected to the inclined base 12, while the other end of the fixing member is fixed to the side of the straight base 11 away from the inclined base 12. In this way, the inclined base 12 can be stably fixed to the straight base 11 without dislocation or shaking.

[0040] In some possible embodiments, the inclined base 12 is thicker at one end and thinner at the other. A positioning pin 13 is provided on one side of the thick end of the inclined base 12. The positioning pin 13 can be inserted into a groove in the spiral staircase support. Because the support device is supported on an inclined surface when the inclined base 12 is used, the positioning pin 13 and the groove can be used to position the support device and prevent the bottom of the support device from sliding. Because the thicker end of the inclined base 12 is located further down, the positioning pin 13 is placed closer to the thicker end of the inclined base 12.

[0041] Furthermore, the present application discloses the following two ways of arranging the positioning pin 13 , but the ways of arranging the positioning pin 13 are not limited to these two.

[0042] The first way to set the positioning pin 13 is as follows: Figure 8 As shown, the positioning pin 13 includes a sliding sleeve 1351 connected to the inclined base 12 and a pin 1352 that can slide along the sliding sleeve 1351. Lifting the pin 1352 can unlock the limit, and lowering the pin 1352. The pin 1352 is inserted into the groove of the spiral staircase to position the support device.

[0043] The second way of setting the positioning pin 13 is as follows: Figure 7As shown, the positioning pin 13 includes a threaded through-slot 125 provided on the tilting base 12 and a bolt adapted to fit within the threaded through-slot 125. By rotating the bolt, the end of the bolt facing away from the nut can be extended from the threaded through-slot 125 or retracted into the threaded through-slot 125, facing away from the column 2. A recessed portion 124 is provided on the thicker end surface of the tilting base 12, with the threaded through-slot 125 located within the recessed portion 124. When in use, the bolt is rotated so that the end of the bolt facing away from the nut extends through the threaded through-slot 125 and is inserted into the groove of the spiral staircase, thereby positioning the support device. When not in use, the bolt is rotated so that more of the bolt is accommodated within the recessed portion 124, with the end of the bolt facing away from the nut completely entering the threaded through-slot 125.

[0044] In some possible embodiments, the inclined base 12 includes a connecting surface, one end of which is hingedly connected to the inclined support surface 121, and the other end of which is slidably connected to the side of the contact surface 122 facing away from the column. Contact surface 122 is hingedly connected to the inclined support surface 121 and is provided with a slide groove perpendicular to the extension direction of the column. The connecting surface can slide along the slide groove and be positioned at any position within the slide groove. In this way, the angle of the inclined support surface 121 can be adjusted by adjusting the mating position of the connecting surface and the contact surface 122, thereby adjusting the support to accommodate stair slopes of different angles.

[0045] The preferred embodiments disclosed above are intended only to illustrate the present application. The preferred embodiments do not exhaustively describe modifications and variations. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A temporary support device for assembling a steel spiral staircase, characterized in that: include: Bottom support; a column connected to the bottom support; A top adjustment seat, comprising a seat body, a lifting assembly, and a swing assembly, wherein the seat body is connected to the column, the lifting assembly is slidably connected to the seat body, the lifting assembly can be lifted and lowered along the seat body and fixed, the swing assembly is connected to the lifting assembly, the swing assembly is swingably connected to the lifting assembly, and the swing assembly can be fixed to the lifting assembly; A support plate is connected to the swing assembly, and the swing assembly can adjust the angle of the support plate by swinging.

2. The temporary support device for assembling a steel spiral staircase according to claim 1, characterized in that: The seat body includes a base plate and a guide frame; The bottom plate is vertically connected to the column; The guide frame is vertically connected to the bottom plate, and a plurality of positioning holes are provided on the guide frame, and the positioning holes are sequentially spaced along the height direction of the column; The lifting assembly is slidably connected to the guide frame, and one end of a fastener can pass through the lifting assembly and be connected to a corresponding positioning hole to fix the height of the lifting assembly.

3. The temporary support device for assembling a steel spiral staircase according to claim 2, characterized in that: The guide frame includes two side guide plates and a middle plate; The two side guide plates are parallel to each other; The middle plate is located between the two side guide plates and is respectively connected to the two side guide plates; Two slide grooves are provided on the side guide plate, and the two slide grooves are located on both sides of the middle plate in the thickness direction. A plurality of positioning holes are provided on the side guide plate between the two slide grooves, and the positioning holes are sequentially spaced along the movable direction of the lifting assembly. The lifting assembly passes through the two sliding grooves, and one end of a fastener can pass through the lifting assembly and be connected to the corresponding positioning hole.

4. The temporary support device for assembling a steel spiral staircase according to claim 3, characterized in that: The lifting assembly includes two inner plates and two outer fixing frames; The two inner plates are located between the two side guide plates and are respectively provided on both sides of the middle plate in the thickness direction; The outer fixing frame includes an outer end plate and two slide plates vertically connected to the outer end plate, the outer end plate is located on the outer side of the side guide plate, and the two slide plates respectively pass through the two slide grooves on the corresponding side guide plate and are respectively connected to the corresponding inner side plate; One end of the fastener can pass through the outer end plate and be connected to the corresponding positioning hole.

5. The temporary support device for assembling a steel spiral staircase according to claim 4, characterized in that: Trapezoidal positioning grooves are provided on both side end surfaces of the inner plate; A trapezoidal sliding block is provided on the side of the slide away from the outer end plate; The trapezoidal sliding block is inserted into the trapezoidal positioning groove; The positioning piece is passed through the inner plate and the trapezoidal slider along the thickness direction of the inner plate to fix the inner plate and the trapezoidal slider.

6. The temporary support device for assembling a steel spiral staircase according to claim 5, characterized in that: The swing assembly is hinged to the inner side plate; A plurality of pre-positioning grooves are provided on the inner side plate, and the pre-positioning grooves are arranged in sequence along the circumference of the swing axis of the swing assembly; The swing assembly is provided with a positioning boss, which is sequentially engaged with the pre-positioning grooves during the swinging process of the swing assembly; Wherein, after the positioning boss is inserted into the pre-positioning groove, the swing assembly is further welded to the inner side plate.

7. The temporary support device for assembling a steel spiral staircase according to claim 5, characterized in that: The swing assembly is hinged to the inner side plate; The inner plate is provided with a plurality of fixing holes, and the fixing holes are sequentially arranged along the circumference of the swing axis of the swing assembly; The swing assembly is provided with a positioning matching hole, and during the swinging process of the swing assembly, the positioning matching hole is connected to each of the fixing holes in sequence; The positioning piece can be passed through the positioning matching hole and the corresponding fixing hole to fix the angle of the swing component.

8. The temporary support device for assembling a steel spiral staircase according to claim 1, characterized in that: The support plate includes a middle support plate and two side support plates, and the two side support plates are hinged to both sides of the middle support plate respectively; The middle support plate is connected to the swing assembly; The support plate has a folded state and an unfolded state. In the folded state, the two side support plates are both attached to the outer wall surface of the middle support plate in the direction perpendicular to the thickness. In the unfolded state, the two side support plates are both unfolded to the plane where the middle support plate is located.

9. The temporary support device for assembling a steel spiral staircase according to claim 1, characterized in that: The bottom support includes a straight base and an inclined base, the straight base is fixedly connected to the column, the inclined base is detachably connected to the straight base, the inclined base has an inclined supporting surface, and the inclined supporting surface and the straight base have an angle.

10. The temporary support device for assembling a steel spiral staircase according to claim 9, characterized in that: One end of the inclined base is thick and the other end is thin, and a positioning pin is provided on one side of the thick end of the inclined base.

Images