Conversion device of fixed support and construction method of conversion device

Abstract

The invention relates to the technical field of steel structure supports, in particular to a conversion device of a fixed support and a construction method of the conversion device of the fixed support. The height fine adjustment mechanism comprises a movable seat, a hidden groove, a threaded screw rod, a limiting hole, a fixed seat, a limiting rod, a threaded sleeve, a mounting cavity, a first gear, a second gear and a regular hexagonal rotating part, the fixed seat is fixedly mounted in the center of the top of the base, and the movable seat is slidably mounted in the fixed seat. By arranging the anti-falling assembly and arranging the protruding anti-falling blocks on the horizontal supporting plate, the steel beam can be blocked by the anti-falling blocks when being placed on the supporting plate, so that the situation that the steel beam falls off is avoided, the safety of the support in use is greatly improved, and meanwhile the two sets of independent and freely-adjusted anti-falling blocks are convenient to adjust. After steel beams of different models are placed, the anti-falling blocks can adjust and limit the steel beams in a self-adaptive mode, and the overall applicability of the support is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure supports, and in particular to a conversion device for a fixed support and a construction method thereof. Background Art

[0002] In order to shorten the construction period, buildings now generally adopt steel structures. With the continuous development of the economy, the continuous improvement of public aesthetics and the demand for medical health, the design of hospital entrance and exit canopies is becoming more and more grand and novel. Large-span truss canopies are the main direction of the design of new hospital entrances and exits. Steel structure is a structure composed of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, venues, super high-rise buildings and other fields.

[0003] Existing steel structures usually use supports as connecting components, but when currently used, the steel beams are placed on the top of the supports first, which makes it impossible to effectively temporarily limit the steel beams. As a result, during construction, the steel beams are prone to slipping when they are not welded. At the same time, when the steel beams are placed on the supports, the position of the supports is fixed, so the steel beams cannot be fine-tuned. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a conversion device for a fixed support and a construction method thereof.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A conversion device for a fixed support, comprising a base, on the top of which a height fine-tuning mechanism is fixedly installed. The height fine-tuning mechanism includes a movable seat, a hidden groove, a threaded lead screw, a limit hole, a fixed seat, a limit rod, a threaded sleeve, an installation cavity, a first gear, a second gear and a regular hexagon rotating member. A fixed seat is fixedly installed at the center of the top of the base. A movable seat is slidably installed in the fixed seat. A threaded sleeve is rotatably installed at the center of the inner bottom of the movable seat. Limit rods are fixedly installed on both sides of the threaded sleeve at the inner bottom of the movable seat. A limit hole matching the limit rod is provided on the movable seat. A hidden groove matching the threaded sleeve is provided at the center of the bottom of the movable seat. A threaded lead screw is fixedly installed at the inner top of the hidden groove. The threaded lead screw is in threaded connection with the threaded sleeve. An installation cavity is provided in the base. A first gear is rotatably installed at the inner bottom of the installation cavity. The rotating shaft of the first gear longitudinally penetrates the installation cavity and is fixedly connected with the rotating shaft of the threaded sleeve. A second gear meshing with the first gear is rotatably installed on the inner wall of the installation cavity. A regular hexagon rotating member is rotatably installed on one side wall of the base. The rotating shaft of the regular hexagon rotating member horizontally penetrates the base and is fixedly connected with the rotating shaft of the second gear. Auxiliary support mechanisms are provided on both sides of the height fine-tuning mechanism at the top of the base. A substrate is fixedly installed at the top of the height fine-tuning mechanism. An angle adjustment assembly is fixedly installed at the top of the substrate. A support plate for placing a steel structure is fixedly installed at the top of the angle adjustment assembly. An anti-disengagement assembly for limiting the steel structure is provided on the support plate. A fixing mechanism for positioning the anti-disengagement assembly is provided on the anti-disengagement assembly. The base, the substrate, the support plate, the height fine-tuning mechanism, the anti-disengagement assembly and the auxiliary support mechanism are all made of Q345D cast steel.

[0007] As a preferred technical solution of the present invention, the auxiliary support mechanism includes a hinge member, a limit top rod, a return spring and a first limit tooth. A hinge member is fixedly installed at the top of the base. The number of hinge members is four and they are arranged in a rectangular array. A limit top rod is sequentially hinged and installed on each of the four hinge members. The two limit top rods on the same side are cross-arranged. The free end of the limit top rod is in a pointed structure. A return spring is fixedly installed at the top of the base. The top end of the return spring is fixedly connected with the outer wall of the limit top rod. A first limit tooth is fixedly installed at the bottom of the substrate. The number of first limit teeth is two and they are arranged in parallel correspondence. The tooth directions on the first limit teeth on the same side are centrosymmetrically arranged. The free end of the limit top rod is meshed with the first limit tooth.

[0008] As a preferred technical solution of the present invention, the angle adjustment assembly includes a movable support, an upper buffer pad, a lower buffer pad, a ball groove, a fixed support and a ball seat. The movable support and the fixed support are both arranged in a disc-shaped structure. The fixed support is fixedly connected to the substrate and is arranged in a T-shaped structure. A ball groove is opened at the center of the top of the fixed support. A lower buffer pad that fits the inner wall of the ball groove is arranged in the ball groove. A ball seat is placed on the lower buffer pad. The movable support is sleeved on the fixed support and is snap-connected to the fixed support. The top of the ball seat is horizontal and an upper buffer pad is arranged on the top of the ball seat. The upper buffer pad is in contact with the inner top of the movable support.

[0009] As a preferred technical solution of the present invention, the anti-detachment assembly includes a mounting plate, an anti-detachment block, a pull rod, a guide rod, a pull ring, positioning teeth and an activity groove. Guide rods are fixedly installed on both inner walls of the support plate. The number of guide rods is two groups and they are arranged in parallel and correspondingly. A mounting plate is slidably installed on the guide rods. The number of mounting plates is two groups and they are sequentially located on both inner walls of the support plate. Pull rods are fixedly installed on the corresponding side walls of the mounting plates. The pull rods penetrate the support plate horizontally and extend to the outside of the support plate. The pull rods are slidably connected to the support plate. Positioning teeth are provided on the pull rods. A pull ring is fixedly installed at one end of the pull rod located outside the support plate. Activity grooves are opened at the top of the support plate. The number of activity grooves is two groups and they are arranged in parallel. Anti-detachment blocks are slidably installed in the activity grooves. The number of anti-detachment blocks in a single group of activity grooves is two groups and the two anti-detachment blocks are sequentially located on both inner walls of the activity groove. The bottom of the anti-detachment block is fixedly connected to the mounting plate. The upper pull rods on the corresponding side walls of the mounting plates are arranged in a stacked manner. The thickness of the pull rod is one-half of the thickness of the mounting plate. The positioning teeth on the two stacked pull rods are symmetrically arranged. Placement grooves corresponding to the positions of the pull rods are opened on the two mounting plates. The placement grooves match the pull rods.

[0010] As a preferred technical solution of the present invention, the fixing mechanism includes a dial, a mounting member, a compression spring and a limit insertion block. Mounting members are fixedly installed on both side walls of the support plate. The positions of the mounting members correspond to the positions of the positioning teeth. A compression spring is fixedly installed on the inner side wall of the mounting member. A limit insertion block is fixedly installed at the free end of the compression spring. The limit insertion block meshes with the positioning teeth. Communication grooves are opened on both side walls of the mounting member. A dial is slidably installed on the communication groove. The dial is fixedly connected to the limit insertion block.

[0011] A construction method of a conversion device for a fixed support is as follows:

[0012] S1: According to the construction drawing requirements of the canopy at the hospital entrance and exit, calculate the load on the steel structure support, and at the same time determine the size of the steel structure support based on the steel structure model used for the canopy, and process and manufacture the steel structure support;

[0013] S2: Pour the construction drawings to form embedded steel parts for installing steel structure supports. Embedded bolts are installed on the embedded steel parts, and the steel structure supports are initially fixed to the bases of the steel structure supports through the embedded bolts, and the processed steel structure supports are installed and fixed.

[0014] S3: Erect the steel beams required for the canopy, and fix the two ends of the steel beams to the support plates of two steel structure supports that are already in use. At this time, the anti - detachment blocks on the anti - detachment mechanism can effectively limit and fix the steel beams.

[0015] S4: Adjust the height of the support plate of the steel structure support by rotating the regular hexagon rotating part to meet the height requirement of the steel beam. After fine - tuning, complete the full fixation and limitation of the steel beam by welding the steel beam to the support plate.

[0016] Compared with the prior art, the beneficial effects that the present invention can achieve are:

[0017] 1. In the present invention, by setting the anti - detachment component, protruding anti - detachment blocks are set on the horizontal support plate, so that when the steel beam is placed on the support plate, it can be blocked by the anti - detachment blocks, thus avoiding the situation of the steel beam falling off, greatly improving the safety during the use of the support. At the same time, the two groups of independently and freely adjustable anti - detachment blocks can adaptively adjust and limit different types of steel beams after they are placed, improving the overall applicability of the support.

[0018] 2. In the present invention, by setting the angle adjustment mechanism, after the support is fixed, the support plate can be rotated to make the anti - detachment blocks adapt to the placement angle of the steel beam, thus completing the effective limitation of the steel beam. At the same time, the set height fine - tuning mechanism enables the steel structure support to still be finely adjusted according to the required stiffness of the steel beam after it is fixed, achieving the best placement effect of the steel beam and improving work efficiency.

[0019] 3. In the present invention, by using Q345D cast steel as the overall material of the steel structure support, the rigid strength of the structure main body is effectively increased. At the same time, the addition of the auxiliary support mechanism can provide auxiliary support to the steel structure support after its height is finely adjusted, ensuring the overall rigid strength of the steel structure support after adjustment and improving the use safety of the steel structure support. Description of the Drawings

[0020] Figure 1 is the structural schematic diagram of the present invention;

[0021] Figure 2 is the structural schematic diagram of the position of the threaded lead screw of the present invention;

[0022] Figure 3 is the structural schematic diagram of the position of the return spring of the present invention;

[0023] Figure 4 Schematic diagram of the installation cavity position structure of the present invention;

[0024] Figure 5 Schematic diagram of the angle adjustment component structure of the present invention;

[0025] Figure 6 Schematic diagram of the support plate structure of the present invention;

[0026] Figure 7 Schematic diagram of the positioning tooth position structure of the present invention;

[0027] Figure 8 Schematic diagram of the enlarged structure of part A of the present invention.

[0028] Wherein: 1, movable groove; 2, angle adjustment component; 3, hinge; 4, base; 5, anti-disengagement component; 6, support plate; 7, substrate; 8, first limit tooth; 9, threaded lead screw; 10, limit hole; 11, movable seat; 12, hidden groove; 13, threaded sleeve; 14, return spring; 15, limit ejector rod; 16, fixed seat; 17, limit rod; 18, installation cavity; 19, first gear; 20, regular hexagon rotating part; 21, second gear; 22, movable support; 23, ball seat; 24, positioning support; 25, ball groove; 26, lower buffer pad; 27, upper buffer pad; 28, anti-disengagement block; 29, pull rod; 30, mounting plate; 31, pull ring; 32, placement groove; 33, guide rod; 34, mounting part; 35, dial; 36, limit insert block; 37, extrusion spring; 38, positioning tooth. Detailed implementation manners

[0029] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0030] Embodiment: As shown in the figure, a conversion device for a fixed support includes a base 4. A height fine-tuning mechanism is fixedly installed on the top of the base 4. Auxiliary support mechanisms are arranged on both sides of the height fine-tuning mechanism on the top of the base 4. A substrate 7 is fixedly installed on the top of the height fine-tuning mechanism. An angle adjustment component 2 is fixedly installed on the top of the substrate 7. A support plate 6 for placing a steel structure is fixedly installed on the top of the angle adjustment component 2. An anti-disengagement component 5 for limiting the steel structure is arranged on the support plate 6. A fixing mechanism for positioning the anti-disengagement component 5 is arranged on the anti-disengagement component 5. The base 4, the substrate 7, the support plate 6, the height fine-tuning mechanism, the anti-disengagement component 5, and the auxiliary support mechanism are all made of Q345D cast steel.

[0031] In some embodiments, when the fixed support is put into use, the base 4 is preferably welded to the embedded steel parts. At this time, the user adjusts the overall height of the fixed support through the height fine-tuning mechanism according to the usage requirements until the usage requirements are met. At this time, the auxiliary support mechanism cooperates with the height fine-tuning mechanism to increase the supporting force. At the same time, the user places the steel beam on the fixed support. At this time, the anti-disengagement component 5 is driven to initially fix and limit the steel beam. When the fixed support adapts to the horizontal angle of the steel beam, the fixed support is directly rotated through the angle adjustment component 2 to adapt to the steel beam. After the steel beam is adjusted, the steel beam is finally fixed by welding.

[0032] The height fine-tuning mechanism includes a movable seat 11, a hidden groove 12, a threaded lead screw 9, a limit hole 10, a fixed seat 16, a limit rod 17, a threaded sleeve 13, an installation cavity 18, a first gear 19, a second gear 21, and a regular hexagon rotating member 20. A fixed seat 16 is fixedly installed at the center of the top of the base 4. A movable seat 11 is slidably installed in the fixed seat 16. A threaded sleeve 13 is rotatably installed at the center of the inner bottom of the movable seat 11. Limit rods 17 are fixedly installed on both sides of the threaded sleeve 13 at the inner bottom of the movable seat 11. A limit hole 10 matching the limit rod 17 is opened on the movable seat 11. A hidden groove 12 matching the threaded sleeve 13 is opened at the center of the bottom of the movable seat 11. A threaded lead screw 9 is fixedly installed at the inner top of the hidden groove 12. The threaded lead screw 9 is in threaded connection with the threaded sleeve 13. An installation cavity 18 is opened in the base 4. A first gear 19 is rotatably installed at the inner bottom of the installation cavity 18. The rotating shaft of the first gear 19 longitudinally penetrates the installation cavity 18 and is fixedly connected to the rotating shaft of the threaded sleeve 13. A second gear 21 meshing with the first gear 19 is rotatably installed on the inner wall of the installation cavity 18. A regular hexagon rotating member 20 is rotatably installed on one side wall of the base 4. The rotating shaft of the regular hexagon rotating member 20 horizontally penetrates the base 4 and is fixedly connected to the rotating shaft of the second gear 21.

[0033] When adjusting the height of the fixed support, rotate the regular hexagonal rotating member 20 to drive the second gear 21 to rotate. At this time, the second gear 21 meshes with the first gear 19, causing the first gear 19 and the threaded sleeve 13 to rotate. At this time, since the threaded lead screw 9 does not rotate, the threaded lead screw 9 moves longitudinally, thereby driving the movable seat 11 to move longitudinally to complete the height adjustment of the fixed support.

[0034] The auxiliary support mechanism includes a hinge member 3, a limit ejector rod 15, a return spring 14, and a first limit tooth 8. Four groups of hinge members 3 are fixedly installed on the top of the base 4, and the four groups of hinge members 3 are arranged in a rectangular array. The same-side two groups of limit ejector rods 15 are arranged in a cross shape, and the free end of the limit ejector rod 15 is arranged in a pointed structure. The return spring 14 is fixedly installed on the top of the base 4, and the top end of the return spring 14 is fixedly connected to the outer wall of the limit ejector rod 15. Two groups of first limit teeth 8 are fixedly installed on the bottom of the substrate 7, and the two groups of first limit teeth 8 are arranged in parallel correspondence. The tooth directions on the same-side first limit teeth 8 are arranged in central symmetry, and the free end of the limit ejector rod 15 is meshed with the first limit teeth 8.

[0035] The return spring 14 presses the limit ejector rod 15, causing the limit ejector rod 15 to be able to fit with the bottom of the substrate 7. When the height of the fixed support changes, at this time, the limit ejector rod 15 is pressed by the return spring 14, and the top of the limit ejector rod 15 is matched and meshed with the first limit teeth 8, causing the height of the fixed support to stop changing. At this time, the limit ejector rod 15 stops moving, and the substrate 7 is completed with auxiliary support.

[0036] The angle adjustment assembly 2 includes a movable support 22, an upper buffer pad 27, a lower buffer pad 26, a ball groove 25, a positioning support 24, and a ball seat 23. The movable support 22 and the positioning support 24 are both arranged in a disc-shaped structure. The positioning support 24 is fixedly connected to the substrate 7. The positioning support 24 is arranged in a T-shaped structure. A ball groove 25 is opened at the center of the top of the positioning support 24. A lower buffer pad 26 that fits with the inner wall of the ball groove 25 is arranged in the ball groove 25. A ball seat 23 is placed on the lower buffer pad 26. The movable support 22 is sleeved on the positioning support 24 and is buckled with the positioning support 24. The top of the ball seat 23 is in a horizontal structure, and an upper buffer pad 27 is arranged on the top of the ball seat 23. The upper buffer pad 27 is attached to the inner top of the movable support 22. The diameter of the ball seat 23 is 300 mm, the inner diameter of the ball groove 25 is Φ302 mm, and the upper buffer pad 27 and the lower buffer pad 26 are PTFE and carbon fiber composite materials.

[0037] When it is necessary to rotate the fixed support to complete the horizontal angle adaptation of the steel beam, at this time, the user rotates the support plate 6, causing the movable support 22 to complete the rotation with the positioning support 24, so that the anti-slip block 28 can complete the matching with the steel beam, and then the steel beam can be placed on the support plate 6.

[0038] The anti-slip assembly 5 includes a mounting plate 30, an anti-slip block 28, a pull rod 29, a guide rod 33, a pull ring 31, a positioning tooth 38 and a movable groove 1. The inner walls on both sides of the support plate 6 are fixedly installed with guide rods 33. The number of guide rods 33 is two groups and they are arranged in parallel. The mounting plate 30 is slidably mounted on the guide rod 33. The number of mounting plates 30 is two groups and they are located at the inner walls on both sides of the support plate 6 in sequence. The corresponding side walls of the mounting plate 30 are fixedly installed with pull rods 29. The pull rods 29 pass through the support plate 6 horizontally and extend to the support plate 6, a pull rod 29 is slidably connected to the support plate 6, a positioning tooth 38 is provided on the pull rod 29, and a pull ring 31 is fixedly installed at one end of the pull rod 29 outside the support plate 6, and a movable groove 1 is provided on the top of the support plate 6. The number of movable grooves 1 is two groups and they are arranged in parallel. An anti-slip block 28 is slidably installed in the movable groove 1. The number of anti-slip blocks 28 built into a single group of movable grooves 1 is two groups and the two groups of anti-slip blocks 28 are located at the inner walls on both sides of the movable groove 1 in sequence, and the bottom of the anti-slip block 28 is fixedly connected to the mounting plate 30.

[0039] When the steel beam is placed on the support plate 6, the user pulls the pull ring 31 to cause the pull rod 29 to pull the mounting plate 30. At this time, the anti-slip block 28 slides in the movable groove 1, causing the anti-slip block 28 to fit with the outer wall of the steel beam, thereby completing the positioning of the steel beam. At the same time, the two sets of anti-slip blocks 28 that can be driven independently can further adapt to steel beams placed in different positions.

[0040] The upper pull rods 29 on the corresponding side walls of the mounting plate 30 are stacked, and the thickness of the pull rods 29 is half the thickness of the mounting plate 30. The positioning teeth 38 on the two sets of stacked pull rods 29 are symmetrically arranged, and the two sets of mounting plates 30 are provided with placement grooves 32 corresponding to the positions of the pull rods 29, and the placement grooves 32 match the pull rods 29.

[0041] The stacked pull rods 29 can effectively integrate the structure, so that the various components of the structure can be more closely combined together, reducing unnecessary space occupation. At the same time, the integrated mechanical structure can often achieve the effect of weight reduction.

[0042] The fixing mechanism includes a paddle 35, a mounting member 34, an extrusion spring 37 and a limit plug 36. The two side walls of the support plate 6 are fixedly mounted with mounting members 34. The position of the mounting member 34 corresponds to the position of the positioning teeth 38. The inner side wall of the mounting member 34 is fixedly mounted with an extrusion spring 37. The free end of the extrusion spring 37 is fixedly mounted with a limit plug 36. The limit plug 36 is engaged with the positioning teeth 38. The two side walls of the mounting member 34 are provided with a connecting groove, and the paddle 35 is slidably mounted on the connecting groove. The paddle 35 is fixedly connected to the limit plug 36.

[0043] When the pull rod 29 is pulled out from the support plate 6, the positioning teeth 38 on the pull rod 29 are inserted and positioned by the limit insert block 36 at this time, completing the limit of the position of the anti - detachment block 28. When release is required, when the user toggles the toggle 35 at this time, the limit insert block 36 is separated from the positioning teeth 38, and the reset of the pull rod 29 can be completed.

[0044] The construction method of a conversion device for a fixed support is as follows:

[0045] S1: According to the construction drawing requirements of the canopy at the hospital entrance and exit, calculate the load on the steel structure support, and at the same time, determine the size of the steel structure support based on the steel structure model used for the canopy, and process and manufacture the steel structure support;

[0046] S2: Pour the embedded steel parts for installing the steel structure support according to the construction drawings, and the embedded steel parts are installed with embedded bolts. The steel structure support is initially fixed to the base 4 of the steel structure support through the embedded bolts, and install and fix the processed steel structure support;

[0047] S3: Erect the steel beams required for the canopy, fix the two ends of the steel beams on the support plates 6 of two in - use steel structure supports respectively. At this time, the anti - detachment block 28 on the anti - detachment mechanism can effectively limit and fix the steel beams;

[0048] S4: Adjust the height of the support plate 6 of the steel structure support by rotating the regular hexagon rotating member 20 to meet the height requirement of the steel beam. At the same time, after fine - tuning, complete the full fixation and limitation of the steel beam by welding the steel beam to the support plate 6.

[0049] Working principle:

[0050] When the fixed support is put into use, the base 4 is welded to the embedded steel parts first. At this time, the user rotates the hexagonal rotating part 20 according to the use requirements to drive the second gear 21 to rotate. At this time, the second gear 21 is engaged with the first gear 19, causing the first gear 19 and the threaded sleeve 13 to rotate. At this time, since the threaded screw 9 does not rotate, the threaded screw 9 moves longitudinally, thereby driving the movable seat 11 to move longitudinally, adjusting the overall height of the fixed support until the use requirements are met. At the same time, the return spring 14 squeezes the limit push rod 15, so that the limit push rod 15 can fit with the bottom of the base plate 7. When the height of the fixed support changes, the limit push rod 15 is squeezed by the return spring 14, and the top of the limit push rod 15 matches and meshes with the first limit tooth 8 until the height of the fixed support stops changing. At this time, the limit push rod 15 stops The movement is stopped, auxiliary support is provided for the base plate 7, and the supporting force is increased. At this time, the user places the steel beam on the fixed support, and pulls the pull ring 31 to cause the pull rod 29 to pull the mounting plate 30. At this time, the anti-slip block 28 is located in the movable groove 1 and slides, causing the anti-slip block 28 to fit the outer wall of the steel beam. When the pull rod 29 pulls out the support plate 6, the positioning teeth 38 on the pull rod 29 are inserted and positioned by the limiting plug 36, completing the limitation of the position of the anti-slip block 28. When it needs to be released, the user pulls the paddle 35 to cause the limiting plug 36 to disengage from the positioning teeth 38 to complete the reset of the pull rod 29, and perform the initial fixed limit on the steel beam. When the fixed support adapts to the horizontal angle of the steel beam, the fixed support is directly rotated to adapt to the steel beam through the angle adjustment component 2. After the steel beam is adjusted, the steel beam is finally fixed by welding.

[0051] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A conversion device for a fixed support, comprising a base (4), characterized in that, A height fine-tuning mechanism is fixedly installed on the top of the base (4). Auxiliary support mechanisms are arranged on both sides of the height fine-tuning mechanism on the top of the base (4). A substrate (7) is fixedly installed on the top of the height fine-tuning mechanism. An angle adjustment component (2) is fixedly installed on the top of the substrate (7). A support plate (6) for placing the steel structure is fixedly installed on the top of the angle adjustment component (2). An anti-disengagement component (5) for limiting the steel structure is arranged on the support plate (6). A fixing mechanism for positioning the anti-disengagement component (5) is arranged on the anti-disengagement component (5). The base (4), the substrate (7), the support plate (6), the height fine-tuning mechanism, the anti-disengagement component (5) and the auxiliary support mechanism are all made of Q345D cast steel.

2. The conversion device of a fixed support according to claim 1, characterized in that The height fine-tuning mechanism includes a movable seat (11), a hidden groove (12), a threaded lead screw (9), a limit hole (10), a fixed seat (16), a limit rod (17), a threaded sleeve (13), an installation cavity (18), a first gear (19), a second gear (21) and a regular hexagonal rotating member (20). A fixed seat (16) is fixedly installed at the center of the top of the base (4). A movable seat (11) is slidably installed in the fixed seat (16). A threaded sleeve (13) is rotatably installed at the center of the inner bottom of the movable seat (11). Limit rods (17) are fixedly installed on both sides of the threaded sleeve (13) at the inner bottom of the movable seat (11). A limit hole (10) matching the limit rod (17) is formed in the movable seat (11). A hidden groove (12) matching the threaded sleeve (13) is formed at the center of the bottom of the movable seat (11). A threaded lead screw (9) is fixedly installed at the inner top of the hidden groove (12). The threaded lead screw (9) is in threaded connection with the threaded sleeve (13). An installation cavity (18) is formed in the base (4). A first gear (19) is rotatably installed at the inner bottom of the installation cavity (18). The rotating shaft of the first gear (19) longitudinally penetrates the installation cavity (18) and is fixedly connected with the rotating shaft of the threaded sleeve (13). A second gear (21) meshing with the first gear (19) is rotatably installed on the inner wall of the installation cavity (18). A regular hexagonal rotating member (20) is rotatably installed on one side wall of the base (4). The rotating shaft of the regular hexagonal rotating member (20) horizontally penetrates the base (4) and is fixedly connected with the rotating shaft of the second gear (21).

3. The conversion device of a fixed support according to claim 1, characterized in that The auxiliary support mechanism includes a hinge member (3), a limit ejector rod (15), a return spring (14), and a first limit tooth (8). A hinge member (3) is fixedly installed on the top of the base (4). The number of hinge members (3) is four and they are arranged in a rectangular array. A limit ejector rod (15) is successively hinged and installed on each of the four hinge members (3). The two limit ejector rods (15) on the same side are arranged in a cross shape. The free end of the limit ejector rod (15) is arranged in a pointed structure. A return spring (14) is fixedly installed on the top of the base (4). The top end of the return spring (14) is fixedly connected to the outer side wall of the limit ejector rod (15). A first limit tooth (8) is fixedly installed on the bottom of the substrate (7). The number of first limit teeth (8) is two and they are arranged in parallel correspondence. The tooth directions on the first limit teeth (8) on the same side are arranged in central symmetry. The free end of the limit ejector rod (15) is engaged with the first limit tooth (8).

4. The conversion device of a fixed support according to claim 1, characterized in that The angle adjustment assembly (2) includes a movable support (22), an upper buffer pad (27), a lower buffer pad (26), a ball groove (25), a fixed support (24), and a ball seat (23). Both the movable support (22) and the fixed support (24) are arranged in a disc-shaped structure. The fixed support (24) is fixedly connected to the substrate (7). The fixed support (24) is arranged in a T-shaped structure. A ball groove (25) is opened at the center of the top of the fixed support (24). A lower buffer pad (26) that fits the inner wall of the ball groove (25) is arranged in the ball groove (25). A ball seat (23) is placed on the lower buffer pad (26). The movable support (22) is sleeved on the fixed support (24) and is snap-connected to the fixed support (24). The top of the ball seat (23) is in a horizontal structure and an upper buffer pad (27) is arranged on the top of the ball seat (23). The upper buffer pad (27) is in contact with the inner top of the movable support (22).

5. The conversion device of a fixed support according to claim 1, characterized in that The anti-slip assembly (5) comprises a mounting plate (30), an anti-slip block (28), a pull rod (29), a guide rod (33), a pull ring (31), a positioning tooth (38) and a movable groove (1). The inner walls on both sides of the support plate (6) are fixedly mounted with guide rods (33). The number of the guide rods (33) is two groups and they are arranged in parallel. The mounting plates (30) are slidably mounted on the guide rods (33). The number of the mounting plates (30) is two groups and they are sequentially located at the inner walls on both sides of the support plate (6). The corresponding side walls of the mounting plates (30) are fixedly mounted with pull rods (29). The pull rods (29) pass through the support plate (6) transversely and extend to the support plate (6). The outer side of the plate (6) is connected to the support plate (6) in a sliding manner. The pull rod (29) is provided with positioning teeth (38). The pull rod (29) is located on the outer side of the support plate (6) and is fixedly installed with a pull ring (31). The top of the support plate (6) is provided with a movable groove (1). The number of the movable grooves (1) is two groups and they are arranged in parallel. An anti-slip block (28) is slidably installed in the movable groove (1). The number of the built-in anti-slip blocks (28) in a single group of movable grooves (1) is two groups and the two groups of anti-slip blocks (28) are sequentially located at the inner walls on both sides of the movable groove (1). The bottom of the anti-slip block (28) is fixedly connected to the mounting plate (30).

6. The conversion device of a fixed support according to claim 5, characterized in that, The upper pull rods (29) on the corresponding side walls of the mounting plate (30) are stacked, and the thickness of the pull rods (29) is half the thickness of the mounting plate (30). The positioning teeth (38) on the two sets of stacked pull rods (29) are symmetrically arranged. The two sets of mounting plates (30) are provided with placement grooves (32) corresponding to the positions of the pull rods (29), and the placement grooves (32) match the pull rods (29).

7. The conversion device of a fixed support according to claim 1, characterized in that, The fixing mechanism comprises a paddle (35), a mounting member (34), an extrusion spring (37) and a limiting plug (36). The two side walls of the support plate (6) are fixedly mounted with the mounting members (34). The position of the mounting members (34) corresponds to the position of the positioning teeth (38). The inner side wall of the mounting member (34) is fixedly mounted with the extrusion spring (37). The free end of the extrusion spring (37) is fixedly mounted with the limiting plug (36). The limiting plug (36) is meshed with the positioning teeth (38). The two side walls of the mounting member (34) are provided with a connecting groove. The paddle (35) is slidably mounted on the connecting groove. The paddle (35) is fixedly connected to the limiting plug (36).

8. The construction method of a conversion device for a fixed support according to claims 1-7, characterized in that, Here are the steps: S1: Calculate the load on the steel structure supports based on the construction drawings of the hospital entrance canopy. Also, determine the size of the steel structure supports based on the steel structure model used for the canopy and then process and manufacture the steel structure supports. S2: Cast the embedded steel parts for installing the steel structure support according to the construction drawings, and install embedded bolts on the embedded steel parts. The steel structure support is initially fixed to the base (4) of the steel structure support through the embedded bolts, and the processed steel structure support is installed and fixed; S3: Erect the steel beams required for the canopy, and fix the two ends of the steel beams on the support plates (6) of two steel structure supports in use respectively. At this time, the anti - detachment block (28) on the anti - detachment mechanism can effectively limit and fix the steel beams; S4: Adjust the height of the support plate (6) of the steel structure support by rotating the regular hexagon rotating part (20) to meet the height requirement of the steel beam. After fine - tuning, complete the full fixation and limitation of the steel beam by welding the steel beam to the support plate (6).

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