I-shaped steel supporting device for plate descending area

Abstract

The utility model relates to a plate descending area I-shaped steel supporting device, and belongs to the technical field of building construction.The plate descending area I-shaped steel supporting device comprises a supporting mechanism, and the supporting mechanism comprises a bracket used for supporting the end, close to an upturning beam, of I-shaped steel and a height-adjustable supporting frame used for supporting the other end of the I-shaped steel; the two positioning mechanisms are arranged in the bracket and the supporting frame correspondingly. Each positioning mechanism comprises a positioning plate used for judging whether the two ends of the I-shaped steel are flatly placed on the supporting frame and the bracket at the same time or not and a positioning gear used for judging the state of the positioning plate. The levelness of the I-shaped steel on the supporting frame and the supporting plate can be detected through the positioning plate and the positioning gear, the inclination direction of the I-shaped steel and whether the two ends of the I-shaped steel are kept at the same horizontal height or not can be quickly known, the installation efficiency of workers is improved, the precision of the horizontal height of the I-shaped steel is improved, and the work efficiency is improved. Unstability caused by the non-horizontal plane of the bottom when other structures are installed subsequently due to the fact that whether the structures are located at the same height or not is judged fuzzily through naked eye observation is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a H-shaped steel support device for lowered slab area. BACKGROUND

[0002] H-shaped steel is a common material in building engineering, which is widely used in cantilever scaffold, cantilever support frame and cantilever unloading platform and other cantilever systems as a bottom plane support component. For example, in the cantilever scaffold system, the H-shaped steel is usually placed on the floor of the cantilever layer and fixed by the pre-buried U-shaped hoop, thus forming a firm and reliable bottom plane support, and then the vertical pole is supported on the H-shaped steel, and the complete cantilever scaffold system is built on this basis.

[0003] Due to the need of building design, lowered slab area or upturned beam structure often appears in the structure, which causes the difference in the support plane of the H-shaped steel, and it is difficult to form a reliable bottom plane support. In order to solve this problem, a support device for adjustable H-shaped steel in lowered slab area is put on the market, but the existing support device for adjustable H-shaped steel in lowered slab area determines the height by manual observation of the level, and cannot quickly determine whether the two ends of the H-shaped steel are in the same horizontal position. SUMMARY

[0004] The embodiment of the present application provides a H-shaped steel support device for lowered slab area, so as to solve the problem that the existing support device for adjustable H-shaped steel in lowered slab area determines the height by manual observation of the level, and cannot quickly determine whether the two ends of the H-shaped steel are in the same horizontal position.

[0005] The embodiment of the present application provides a H-shaped steel support device for lowered slab area, which comprises:

[0006] The support mechanism comprises a bracket for supporting one end of the H-shaped steel close to the upturned beam and a support frame for supporting the other end of the H-shaped steel with adjustable height;

[0007] The positioning mechanism comprises two positioning plates respectively arranged in the bracket and the support frame, and a positioning gear for judging the state of the positioning plate.

[0008] In some embodiments, the bracket comprises a supporting plate for placing the H-shaped steel and a cover plate covering the top of the H-shaped steel and the supporting plate and connecting and clamping the H-shaped steel.

[0009] In some embodiments, the supporting plate comprises a first bottom plate and a first side plate arranged on both sides of the first bottom plate.

[0010] The first bottom plate is internally provided with a cavity.

[0011] The top of the first bottom plate is provided with a positioning opening which communicates with the cavity and through which the positioning plate passes.

[0012] In some embodiments, the top inner wall of the first bottom plate is provided with a fixing plate, and the fixing plate has two fixing plates respectively arranged on the two sides of the positioning opening.

[0013] One end of the fixing plate extends below the positioning opening, and a spring is arranged between the extending end of the fixing plate and the positioning plate.

[0014] In some embodiments, the positioning gear is arranged in the cavity and is arranged in spaced relation with the positioning plate.

[0015] A limiting block is arranged between the positioning plate and the positioning gear.

[0016] A connecting rod is arranged between the limiting block and the positioning plate.

[0017] In some embodiments, the side of the limiting block away from the connecting rod is arc-shaped, and the arc-shaped side of the limiting block is provided with a limiting tooth which engages with the positioning gear.

[0018] In some embodiments, one side of the positioning gear is provided with a connecting shaft.

[0019] One end of the connecting shaft penetrates through the first bottom plate and extends out, and a handle is arranged on the extending end of the connecting shaft.

[0020] In some embodiments, one side of the first side plate of the supporting plate is provided with a first connecting plate.

[0021] The first connecting plate and the cover plate are connected by bolts to clamp and fix the I-beam.

[0022] In some embodiments, the bottom of the first bottom plate of the supporting plate is provided with a support column which supports the ground, and one end of the support column away from the first bottom plate is provided with a bolt which connects with the ground.

[0023] The first side plate of the supporting plate is provided with a bolt which is used to tightly fix the I-beam.

[0024] In some embodiments, the supporting frame is a mouth-shaped frame structure, and the supporting frame comprises a second bottom plate, second side plates arranged on the two sides of the second bottom plate, and a top plate arranged in spaced relation with the second bottom plate.

[0025] The second side plate of the supporting frame is provided with a second connecting plate and a bolt which penetrates through the second connecting plate and connects with the ground, and the upper and lower sides of the second connecting plate are both provided with nuts which connect with the bolt.

[0026] The second side plate of the supporting frame is provided with a bolt which is used to tightly fix the I-beam.

[0027] The beneficial effects brought by the technical solutions provided in the application include:

[0028] The positioning mechanism is arranged on the second bottom plate of the support frame and the first floor plate of the supporting plate along the length direction of the I-beam, and is located at the two ends of the second bottom plate of the support frame and the two ends of the supporting plate, so that the I-beam is accurately judged and observed to be completely horizontal, and when the I-beam is in a state of one end being high and the other end being low, the low end will be inclined upward. In this case, the I-beam at the end of the first floor plate of the supporting plate away from the support frame will press on the positioning plate, causing the positioning plate to be pressed downward and the positioning gear to be unable to rotate, and the I-beam at the end of the first floor plate of the supporting plate close to the support frame will be inclined upward, so that the positioning plate cannot be completely pressed downward, the positioning gear at the position can rotate, and it can be known that the I-beam is not in a completely square and same height state, and the inclination direction of the I-beam at this time can also be known, thereby improving the accuracy of the device and enabling the worker to quickly judge the state of the I-beam for making corresponding adjustment.

[0029] The positioning plate and the positioning gear are used to detect the levelness of the I-beam on the support frame and the supporting plate, respectively, so that the inclination direction of the I-beam and whether the two ends are kept at the same horizontal height can be quickly known, the installation efficiency of the worker is improved, the accuracy of the horizontal height of the I-beam is improved, and the need for the naked eye to observe and make a blurred judgment of whether it is located at the same height is avoided, so that the instability caused by the non-horizontal bottom surface when installing other structures subsequently is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0031] Fig. 1 The structural schematic diagram provided for the embodiments of the present application is shown in the figure.

[0032] Fig. 2 The structural schematic diagram provided for the positioning mechanism in the embodiments of the present application is shown in the figure.

[0033] 1, second connecting plate; 2, handle; 4, I-beam; 5, connecting shaft; 6, first connecting plate; 8, cover plate; 9, supporting plate; 10, supporting column; 12, first side plate; 13, positioning port; 14, positioning gear; 15, first bottom plate; 17, spring; 18, cavity; 19, fixed plate; 20, limiting tooth; 21, connecting rod; 22, limiting block; 23, support frame; 24, positioning plate. DETAILED DESCRIPTION

[0034] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0035] The embodiment of the present application provides a H-shaped steel support device in a lowered plate area, which can solve the problem that the existing adjustable H-shaped steel support device in a lowered plate area determines the height by manual observation of the levelness and cannot quickly determine whether the two ends of the H-shaped steel are in the same horizontal position.

[0036] Referring to Figs. 1-2 The embodiment of the present application provides a H-shaped steel support device in a lowered plate area, which can solve the problem that the existing adjustable H-shaped steel support device in a lowered plate area determines the height by manual observation of the levelness and cannot quickly determine whether the two ends of the H-shaped steel are in the same horizontal position.

[0037] The support mechanism includes a bracket for supporting the H-shaped steel 4 near one end of the inverted beam and a support frame 23 for supporting the other end of the H-shaped steel 4 at an adjustable height.

[0038] The positioning mechanism has two positioning mechanisms respectively arranged in the bracket and the support frame 23, and the positioning mechanism includes a positioning plate 24 for judging whether the two ends of the H-shaped steel 4 are simultaneously placed horizontally on the support frame 23 and the bracket and a positioning gear 14 for judging the state of the positioning plate 24.

[0039] In the embodiment, the support frame 23 is a mouth-shaped frame structure, the support frame 23 includes a second bottom plate, second side plates arranged on both sides of the second bottom plate, and a top plate oppositely arranged apart from the second bottom plate, the second side plates of the support frame 23 are provided with a second connecting plate 1 and a bolt penetrating through the second connecting plate 1 and connected with the ground, the upper and lower sides of the second connecting plate 1 are provided with nuts connected with the bolt, and the support frame 23 is provided with a bolt for tightly fixing the H-shaped steel 4.

[0040] The supporting plate 9 in the bracket is placed horizontally on the inverted beam, then one end of the H-shaped steel 4 is placed in the supporting plate 9, and then the cover plate 8 is connected with the supporting plate 9 by the bolt to pre-clamp and fix the H-shaped steel 4, the H-shaped steel 4 can be placed horizontally by the supporting plate 9, and the levelness of the H-shaped steel 4 is detected by the positioning plate 24 on the supporting plate 9.

[0041] The I-beam 4 is inserted into the support frame 23 away from one end of the upturned beam, and then the bolts on the two second side plates of the support frame 23 are simultaneously tightened against the I-beam 4 to position the I-beam 4 in the transverse direction, and then the bolts are connected to the ground by passing through the second connecting plate 1, and nuts are screwed on the bolts at the positions on the upper and lower sides of the second connecting plate 1 when the bolts pass through, so that the support frame 23 can adjust the height of the I-beam 4 and fix it in height by using the nuts, and the levelness of the I-beam 4 is detected by using the positioning plate 24 arranged in the support frame 23, so that the I-beam 4 is adjusted and kept at the same height at one end of the supporting plate 9 and one end of the support frame 23.

[0042] When the two ends of the I-beam 4 are supported by the support frame 23 and the supporting plate 9 respectively, the positioning plates 24 in the support frame 23 and the supporting plate 9 are simultaneously pressed down, and then the state of the positioning plate 24 is judged by rotating the positioning gear 14. When the positioning gear 14 can be rotated, it means that the positioning plate 24 is not completely pressed down to the same height as the first bottom plate 15 and the second bottom plate, so the limiting block 22 below the positioning plate 24 does not engage with the positioning gear 14 to limit the positioning gear 14, and then the positioning gear 14 can know which end of the I-beam 4 is not flat.

[0043] And the positioning mechanism is arranged with two in the length direction of the I-beam 4 on the second bottom plate of the support frame 23 and the first bottom plate 15 of the supporting plate 9, at the two ends of the second bottom plate of the support frame 23 and at the two ends of the supporting plate 9, to further accurately judge whether the I-beam 4 is completely horizontal. When the I-beam 4 is in a state of one end high and one end low, the low end will tilt upwards. Taking the supporting plate 9 as an example, the I-beam 4 at one end of the first bottom plate 15 of the supporting plate 9 away from the support frame 23 will press on the positioning plate 24, causing the positioning plate 24 to press down and causing the positioning gear 14 to be unable to rotate, while the I-beam 4 at one end of the first bottom plate 15 of the supporting plate 9 close to the support frame 23 will tilt upwards, at which time the positioning plate 24 cannot be completely pressed down, causing the positioning gear 14 at that position to rotate, so that it can be known that the I-beam 4 is not in a completely square and same height state, and it can also be known that the tilt direction of the I-beam 4 at this time, improving the accuracy of the device, so that the worker can quickly judge the state of the I-beam 4 to make corresponding adjustments.

[0044] The levelness of the I-beam 4 on the support frame 23 and the supporting plate 9 is detected by the positioning plate 24 and the positioning gear 14, which can quickly know the tilt direction of the I-beam 4 and whether the two ends are kept at the same horizontal height, improving the installation efficiency of the worker, improving the accuracy of the horizontal height of the I-beam 4, and avoiding the need for the naked eye to observe and judge whether it is at the same height, so that the unstable bottom non-horizontal surface when installing other structures subsequently.

[0045] Wherein in this embodiment and all the following embodiments, the same positioning mechanism is provided in the support frame 23 and the bracket, and all the following embodiments are described by taking the bracket as an example, so the support frame 23 is not described in detail.

[0046] In some optional embodiments, referring to Figs. 1-2 As shown in the figure, in the I-beam support device with the lowered plate, the bracket includes a bracket plate 9 for placing the I-beam 4 and a cover plate 8 covering the top of the I-beam 4 and the bracket plate 9 to connect and clamp the I-beam 4, and when the I-beam 4 is placed on the bracket plate 9, the cover plate 8 is covered on the top of the I-beam 4 and connected with the bracket plate 9 to clamp the I-beam 4.

[0047] In some optional embodiments, referring to Figs. 1-2 As shown in the figure, in the I-beam support device with the lowered plate, the bracket plate 9 includes a first bottom plate 15 and first side plates 12 arranged on both sides of the first bottom plate 15, the inside of the first bottom plate 15 is provided with a cavity 18, and the top of the first bottom plate 15 is provided with a positioning port 13 communicating with the cavity 18 and allowing the positioning plate 24 to pass through, the bracket plate 9 is in a U shape, the I-beam 4 is placed on the first bottom plate 15 between the two first side plates 12, the inside of the first bottom plate 15 is provided with a cavity 18 for storing the positioning gear 14, and the first bottom plate 15 is provided with a positioning port 13 communicating with the cavity 18, the diameter of the positioning plate 24 is smaller than the positioning port 13, and when the positioning plate 24 is pressed down by the I-beam 4, the positioning plate 24 will be inserted into the positioning port 13 until the top of the positioning plate 24 is at the same height as the first bottom plate 15.

[0048] In some optional embodiments, referring to Figs. 1-2 As shown in the figure, in the I-beam support device with the lowered plate, the top inner wall of the first bottom plate 15 is provided with a fixing plate 19, the fixing plate 19 has two fixing plates respectively arranged on both sides of the positioning port 13, one end of the fixing plate 19 extends below the positioning port 13, and a spring 17 is arranged between the extending end of the fixing plate 19 and the positioning plate 24.

[0049] The fixing plate 19 on the right side can be an L-shaped plate rotated counterclockwise by 90°, the fixing plates 19 on the left and right sides are symmetrically arranged, the fixing plate 19 is arranged on the top inner wall of the cavity 18, and the two fixing plates 19 are respectively arranged on both sides of the positioning port 13, the horizontal plate of the fixing plate 19 will extend below the positioning port 13, a spring 17 is arranged between the horizontal plate of the fixing plate 19 and the positioning plate 24, and the positioning plate 24 is initially arranged above the positioning port 13, and when the I-beam 4 presses down the positioning plate 24, the positioning plate 24 will compress the spring 17 to lower the height.

[0050] In some optional embodiments, referring to Figs. 1-2As shown, the drop plate area H-shaped steel support device, positioning gear 14 is arranged in the cavity 18, and with the positioning plate 24 is opposite, positioning plate 24 with the positioning gear 14 between the limiting block 22, limiting block 22 and the positioning plate 24 between the fixed connection connecting rod 21.

[0051] In this embodiment, the limiting block 22 away from the connecting rod 21 side of the arc, the limiting block 22 arc side is provided with the limiting gear 14 meshing limiting gear 20.

[0052] Positioning gear 14 is arranged in the cavity 18, and located directly below the positioning plate 24, the lower side of the positioning plate 24 through the connecting rod 21 connecting limiting block 22, one side of the limiting block 22 is a plane connected with the connecting rod 21, the other side is concave arc and fixed with a plurality of limiting gear 20 can be engaged with the positioning gear 14, when the positioning plate 24 is pressed, the positioning plate 24 through the connecting rod 21 drive limiting block 22 down until the limiting gear 20 and the positioning gear 14 meshing, so that the positioning gear 14 can not rotate.

[0053] Wherein the connecting rod 21 can also be hinged between the positioning plate 24, that is, the positioning plate 24 can only be completely lowered when the two sides are pressed at the same time, to avoid the H-shaped steel 4 tilt can only one side of the positioning plate 24, resulting in the positioning plate 24 accuracy is reduced.

[0054] In some alternative embodiments, see Figs. 1-2 As shown, the drop plate area H-shaped steel support device, positioning gear 14 side of the connecting shaft 5, one end of the connecting shaft 5 through the first bottom plate 15 and stretch out, the connecting shaft 5 on the end of the stretch out is provided with a handle 2.

[0055] The positioning gear 14 of the shaft is fixed with the connecting shaft 5, one end of the connecting shaft 5 through the first bottom plate 15 and stretch out, the connecting shaft 5 is provided with a handle 2, when you need to determine the state of the positioning plate 24 only to the handle 2 rotation, check whether can rotate the handle 2, can be known whether can rotate the positioning gear 14, also can know whether the positioning plate 24 and the first bottom plate 15 is the same height.

[0056] In some alternative embodiments, see Figs. 1-2 As shown, the drop plate area H-shaped steel support device, the first side plate 12 side of the supporting plate 9 is provided with the first connecting plate 6, the first connecting plate 6 and the cover plate 8 between the bolt connection to clamp the fixed H-shaped steel 4, by setting the bolt on the first side plate 12 for the top tight, can be clamped and fixed H-shaped steel 4, to place horizontal movement.

[0057] In some alternative embodiments, see Figs. 1-2As shown, the first bottom plate 15 of the support plate 9 is provided with a support column 10 supported on the ground, and the end of the support column 10 away from the first bottom plate 15 is provided with a bolt connected with the ground.

[0058] After the support plate 9 is placed on the inverted beam, the bottom of the first bottom plate 15 is fixed with a support column 10 supported on the ground, and the bottom of the support column 10 is provided with a connecting table, so that the bolt can pass through the connecting table and be connected with the ground, so that the support column 10 is fixed on the ground.

[0059] The working principle and process of the present application:

[0060] The support plate 9 in the bracket is placed flat on the inverted beam, and then one end of the I-beam 4 is placed in the support plate 9, and then the cover plate 8 is connected with the support plate 9 by bolts to pre-clamp and fix the I-beam 4, and the I-beam 4 is placed flat through the support plate 9, and the levelness of the I-beam 4 is detected by the positioning plate 24 on the support plate 9.

[0061] The end of the I-beam 4 away from the inverted beam is inserted into the support frame 23, and then the bolts on the two second side plates of the support frame 23 are simultaneously tightened against the I-beam 4 to position the I-beam 4 in the transverse direction, and then the bolts pass through the second connecting plate 1 and are connected with the ground, and nuts are screwed on the positions of the bolts on the upper and lower sides of the second connecting plate 1 when the bolts pass through, so that the support frame 23 can adjust the height of the I-beam 4 and fix it in height by using the nuts, and the levelness of the I-beam 4 is detected by the positioning plate 24 arranged in the support frame 23, so that the end of the I-beam 4 located in the support plate 9 and the end located in the support frame 23 are adjusted and kept at the same height.

[0062] When the two ends of the I-beam 4 are supported by the support frame 23 and the support plate 9 respectively, the positioning plates 24 in the support frame 23 and the support plate 9 are simultaneously pressed down, and then the state of the positioning plate 24 is judged by rotating the positioning gear 14, when the positioning gear 14 can be rotated, it means that the positioning plate 24 is not completely pressed down to the same height as the first bottom plate 15 and the second bottom plate, so the limiting block 22 below the positioning plate 24 does not engage with the positioning gear 14 to limit the positioning gear 14, and then the end of the I-beam 4 which is not placed flat can be known through the positioning gear 14.

[0063] And the positioning mechanism is provided with two on the second bottom plate of the support frame 23 and the first bottom plate 15 of the supporting plate 9 along the length direction of the I-shaped steel 4, at both ends of the second bottom plate of the support frame 23 and at both ends of the supporting plate 9, further accurate judgment and observation of whether the I-shaped steel 4 is completely horizontal, when the I-shaped steel 4 is in a state that one end is high and the other end is low, the low end will be inclined upward, taking the supporting plate 9 as an example, the I-shaped steel 4 at the end of the first bottom plate 15 of the supporting plate 9 away from the support frame 23 will press on the positioning plate 24, so that the positioning plate 24 is pressed downward, causing the positioning gear 14 to be unable to rotate, and the I-shaped steel 4 at the end of the first bottom plate 15 of the supporting plate 9 close to the support frame 23 will be inclined upward, at this time the positioning plate 24 cannot be fully pressed downward, so that the positioning gear 14 at the position rotates, that is, it can be known that the I-shaped steel 4 is not in a completely square and same height state, and it can also be known that the inclination direction of the I-shaped steel 4 at this time, which improves the accuracy of the device, so that the worker can quickly judge the state of the I-shaped steel 4 to make corresponding adjustment.

[0064] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0066] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A support device for I-beams in a lowered plate area, characterized in that, include: The support mechanism includes a bracket for supporting one end of the I-beam (4) near the upper beam and an adjustable height support frame (23) for supporting the other end of the I-beam (4). The positioning mechanism has two parts, which are respectively set in the bracket and the support frame (23). The positioning mechanism includes a positioning plate (24) for determining whether both ends of the I-beam (4) are simultaneously placed flat on the support frame (23) and the bracket, and a positioning gear (14) for determining the state of the positioning plate (24).

2. The I-beam support device for the lowered plate area as described in claim 1, characterized in that: The bracket includes a support plate (9) for placing the I-beam (4) and a cover plate (8) that covers the top of the I-beam (4) and clamps and fixes the I-beam (4) between the support plate (9).

3. The I-beam support device for the lowered plate area as described in claim 2, characterized in that: The pallet (9) includes a first base plate (15) and first side plates (12) disposed on both sides of the first base plate (15); The first base plate (15) has a cavity (18) inside; The top of the first base plate (15) has a connecting cavity (18) and a positioning port (13) through which the positioning plate (24) can pass.

4. The I-beam support device for the lowered plate area as described in claim 3, characterized in that: A fixing plate (19) is provided on the top inner wall of the first base plate (15), and there are two fixing plates (19) respectively located on both sides of the positioning port (13); One end of the fixing plate (19) extends out below the positioning port (13), and a spring (17) is provided between the extended end of the fixing plate (19) and the positioning plate (24).

5. The I-beam support device for the lowered plate area as described in claim 3, characterized in that: The positioning gear (14) is disposed in the cavity (18) and is disposed opposite to the positioning plate (24) in a space. A limit block (22) is provided between the positioning plate (24) and the positioning gear (14); A connecting rod (21) is provided between the limiting block (22) and the positioning plate (24).

6. The I-beam support device for the lowered plate area as described in claim 5, characterized in that: The side of the limiting block (22) away from the connecting rod (21) is arc-shaped, and the side of the limiting block (22) with arc-shaped is provided with limiting teeth (20) that mesh with the positioning gear (14).

7. The I-beam support device for the lowered plate area as described in claim 5, characterized in that: A connecting shaft (5) is provided on one side of the positioning gear (14); One end of the connecting shaft (5) passes through the first base plate (15) and extends outwards, and a handle (2) is provided on the extended end of the connecting shaft (5).

8. The I-beam support device for the lowered plate area as described in claim 3, characterized in that: A first connecting plate (6) is provided on one side of the first side plate (12) of the tray (9); The first connecting plate (6) and the cover plate (8) are connected by bolts to clamp and fix the I-beam (4).

9. The I-beam support device for the lowered plate area as described in claim 8, characterized in that: The bottom of the first base plate (15) of the pallet (9) is provided with a support column (10) that supports the ground, and the end of the support column (10) away from the first base plate (15) is provided with a bolt that connects to the ground; The first side plate (12) of the support plate (9) is provided with bolts for tightening and fixing the I-beam (4).

10. The I-beam support device for the lowered plate area as described in claim 1, characterized in that: The support frame (23) is a U-shaped frame structure. The support frame (23) includes a second base plate, second side plates disposed on both sides of the second base plate, and a top plate disposed opposite to the second base plate in a space. The second side plate of the support frame (23) is provided with a second connecting plate (1) and a bolt that passes through the second connecting plate (1) and connects to the ground. Nuts that connect to the bolts are provided on both the upper and lower sides of the second connecting plate (1). The second side plate of the support frame (23) is provided with bolts for tightening and fixing the I-beam (4).

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