Building support frame with safety protection function

By introducing adjustable support components and control mechanisms into the scaffolding, the stability problem of the scaffolding on complex ground was solved, enabling flexible adjustment of the support area and improving stability, thus ensuring construction safety.

CN224379357UActive Publication Date: 2026-06-19THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
Filing Date
2025-07-14
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When existing scaffolding is used on complex ground such as mud, soft soil, or slopes, the small contact area between the bottom support and the ground, as well as the insufficient bearing capacity of the ground, can easily lead to support settlement and lateral displacement of the scaffolding, and even cause the scaffolding to tilt or collapse, threatening the safety of construction workers. At the same time, the fixed support structure cannot be flexibly adjusted, making it difficult to adapt to the needs of complex construction sites.

Method used

The system employs a combination of components such as a frame, tie rods, support plates, outriggers, adjustment devices, extended support assemblies, movable support rods, extension legs, and control mechanisms. Through worm gear transmission, the support area of ​​the outriggers can be flexibly adjusted, increasing the contact area with the ground. The self-locking characteristic of the worm gear ensures stable support.

Benefits of technology

It effectively reduces the risk of scaffolding tipping over on complex ground, improves stability, ensures the safety of construction workers, adapts to different ground environments, prevents tilting or collapse, and improves ease of operation and safety protection performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a building support frame with safety protection function, relating to the field of building support frame technology, including a frame body, tie rods, and support plates. This utility model, through the coordinated use of a frame body, tie rods, support plates, legs, adjustment devices, extended support components, control mechanisms, drive components, limit blocks, and internal hexagonal slots, improves or solves, to a certain extent, the problems of existing scaffolding used on complex ground such as mud, soft soil, or slopes. These problems arise because the small contact area between the bottom legs and the ground leads to insufficient ground bearing capacity, causing leg settlement. Ground tilting can cause lateral displacement of the frame, and in severe cases, even tilting or collapsing the scaffolding, directly threatening the safety of construction workers. Furthermore, existing scaffolding legs are mostly fixed structures, unable to flexibly adjust the support range according to the ground environment, making it difficult to adapt to the needs of complex construction sites and further increasing safety hazards.
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Description

Technical Field

[0001] This utility model relates to the field of building support frame technology, specifically a building support frame with safety protection function. Background Technology

[0002] Construction support frames are key facilities used in construction to provide temporary support, bear construction loads, and serve as work platforms. They are widely used in building wall pouring, component installation, decoration and renovation, and other scenarios. Among them, scaffolding, as a typical example of construction support frames, provides construction workers with a foothold for working at heights and plays a temporary load-bearing role for construction materials and equipment. It is a basic piece of equipment to ensure the smooth progress of construction.

[0003] However, when existing scaffolding is used on complex terrains such as mud, soft soil, or slopes, the small contact area between the bottom supports and the ground, coupled with insufficient ground bearing capacity, can lead to support settlement. Ground tilting can cause lateral displacement of the scaffolding, and in severe cases, even tilting or collapsing, directly threatening the safety of construction workers. In addition, most existing scaffolding supports are fixed structures, which cannot flexibly adjust the support range according to the ground environment, making it difficult to adapt to the needs of complex construction sites and further increasing safety hazards. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a building support frame with safety protection functions. It possesses the advantages of flexibly adjusting the support range of the legs, increasing the contact area with the ground, and improving the stability of complex ground surfaces. To a certain extent, it improves or solves the problems of existing scaffolding used on complex ground surfaces such as mud, soft soil, or slopes, where the small contact area between the bottom legs and the ground leads to insufficient ground bearing capacity, causing leg settlement. Ground tilting can also cause lateral displacement of the scaffolding, and in severe cases, even tilting or collapsing, directly threatening the safety of construction workers. Furthermore, existing scaffolding legs are mostly fixed structures, unable to flexibly adjust the support range according to the ground environment, making it difficult to adapt to the needs of complex construction sites and further increasing safety hazards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a building support frame with safety protection function, comprising a frame body, tie rods, and support plates. There are two frame bodies, two tie rods respectively disposed on the front and rear sides of the two frame bodies and movably connected to them, and two support plates respectively disposed on the front and rear sides of the upper end of the frame body and movably connected to it. Support legs are fixedly connected to the front and rear sides of the lower end of the two frame bodies, and each of the four support legs is equipped with an adjustment device.

[0006] The adjustment device includes an extension support assembly and a control mechanism. There are four extension support assemblies, which are respectively arranged around the lower end of the support leg. The control mechanism is arranged on the upper end of the four extension support assemblies.

[0007] In a preferred embodiment of this utility model, the extended support assembly includes a movable support rod, an extension leg, and a pressure shaft. The movable support rod is disposed inside the front side of the support leg, and its front end extends out of the support leg and is slidably connected to the support leg. The extension leg is fixedly connected to one end of the movable support rod that extends out of the support leg, and the pressure shaft is fixedly connected to the lower surface of the rear end of the movable support rod.

[0008] In a preferred embodiment of this invention, the control mechanism includes a linkage component and a drive component. The linkage component is disposed on the upper end of the four pressure shafts, and the drive component is disposed on the left side of the upper end of the linkage component.

[0009] In a preferred embodiment of this utility model, the linkage includes a rotating rod, a drive disc, an arc-shaped extrusion groove, and a worm gear. The rotating rod is disposed inside the support leg, and both its upper and lower ends are rotatably connected to the support leg. The drive disc is sleeved on the surface of the rotating rod and is fixedly connected to the rotating rod. There are four arc-shaped extrusion grooves, which are evenly distributed around the drive disc. The upper ends of the four pressure shafts extend into the four arc-shaped extrusion grooves and are movably connected to the arc-shaped extrusion grooves. The worm gear is sleeved on the upper surface of the rotating rod and is fixedly connected to the rotating rod.

[0010] As a preferred embodiment of this invention, the upper ends of the four pressure shafts respectively extend into the interior of the four arc-shaped extrusion grooves, and each is fixedly connected to a limiting block.

[0011] In a preferred embodiment of this invention, the driving component includes a worm and a knob. The worm is located on the left side of the worm wheel and meshes with the worm wheel. Both the front and rear ends of the worm are rotatably connected to the support leg, and the front end extends out of the support leg. The knob is fixedly connected to the front end of the worm.

[0012] As a preferred embodiment of this invention, the front surface of the knob is provided with an internal hexagonal groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the coordinated use of a frame, tie rods, support plates, outriggers, adjustment devices, extended support components, movable support rods, extension legs, pressure shafts, control mechanisms, linkages, rotating rods, drive discs, arc-shaped extrusion grooves, worm gears, drive components, worms, knobs, limit blocks, and internal hexagonal slots, improves or solves, to a certain extent, the problems of existing scaffolding when used on complex ground such as mud, soft soil, or slopes. These problems arise because the small contact area between the bottom outriggers and the ground leads to insufficient ground bearing capacity, causing outrigger settlement. Ground tilting can cause lateral displacement of the frame, and in severe cases, even tilting or collapsing the scaffolding, directly threatening the safety of construction workers. Furthermore, existing scaffolding outriggers are mostly fixed structures, unable to flexibly adjust the support range according to the ground environment, making them unsuitable for complex construction sites and further increasing safety hazards.

[0015] 2. This utility model, through the cooperation of the extended support component and the control mechanism in the adjustment device, can flexibly adjust the support area of ​​the outriggers, enhance the stability of the scaffold in different ground environments, effectively reduce the risk of scaffold collapse, and thus achieve a safety protection function. It avoids the situation where the lower end of the scaffold has too small a support area with the ground, or the ground is too soft, which can lead to the scaffold tilting or even collapse. This ensures the personal safety of construction workers when working on the scaffold. The extended support component can quickly adjust the support range of the outriggers through the sliding extension and retraction of the movable support rod and the synchronous movement of the extended leg, effectively increasing the contact area between the scaffold and the ground, thereby improving the stability of the scaffold on soft ground or uneven terrain and reducing the risk of tilting or collapse caused by unstable support.

[0016] 3. This utility model, by setting up a control mechanism, can realize synchronous linkage control of the four extended support components, accurately and efficiently adjust the support area of ​​the support legs, improve the convenience of operation, and at the same time, utilize the self-locking characteristics of the worm gear to ensure the stable and reliable support state, effectively enhancing the safety protection performance of the scaffolding. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the scaffolding of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the adjustment device;

[0019] Figure 3 A schematic diagram of the exploded three-dimensional structure of the extended component;

[0020] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the support legs.

[0021] In the diagram: 1. Frame; 2. Tie rod; 3. Support plate; 4. Support leg; 5. Adjustment device; 6. Extension support assembly; 61. Movable support rod; 62. Extension leg; 63. Pressure shaft; 7. Control mechanism; 71. Linkage component; 711. Rotating rod; 712. Drive disc; 713. Arc-shaped extrusion groove; 714. Worm gear; 72. Drive component; 721. Worm; 722. Knob; 8. Limit block; 9. Socket hexagonal groove. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Example 1

[0027] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a building support frame with safety protection function, including a frame body 1, a tie rod 2, and a support plate 3. There are two frame bodies 1, two tie rods 2, which are respectively arranged on the front and rear sides of the two frame bodies 1 and are movably connected to the frame bodies 1. There are two support plates 3, which are respectively arranged on the front and rear sides of the upper end of the frame body 1 and are movably connected to the frame body 1. The front and rear sides of the lower end of the two frame bodies 1 are respectively fixedly connected to the legs 4. Each of the four legs 4 is provided with an adjustment device 5. The adjustment device 5 includes an extension support assembly 6 and a control mechanism 7. There are four extension support assemblies 6, which are respectively arranged around the lower end of the legs 4. The control mechanism 7 is arranged on the upper end of the four extension support assemblies 6.

[0028] Specifically, by cooperating with the extended support component 6 in the adjustment device 5 and the control mechanism 7, the support area of ​​the support leg 4 can be flexibly adjusted, enhancing the stability of the frame 1 in different ground environments, effectively reducing the risk of scaffolding collapse, and thus achieving safety protection function. This avoids the situation where the support area between the lower end and the ground is too small, or the ground is too soft, which could cause the frame to tilt or even collapse, thus ensuring the personal safety of construction workers when working on the frame 1.

[0029] Furthermore, the control mechanism 7 operates by driving the linkage 71, causing the movable parts in the extended support assembly 6 to extend or retract the support leg 4, thereby adjusting the support area of ​​the support leg 4.

[0030] Example 2

[0031] The second embodiment of this utility model provides a building support frame with safety protection function. The extended support component 6 includes a movable support rod 61, an extension leg 62 and a pressure shaft 63. The movable support rod 61 is located inside the front side of the support leg 4 and extends out of the support leg 4 and is slidably connected to the support leg 4. The extension leg 62 is fixedly connected to one end of the movable support rod 61 that extends out of the support leg 4. The pressure shaft 63 is fixedly connected to the lower surface of the rear end of the movable support rod 61.

[0032] Specifically, the extended support component 6 can quickly adjust the support range of the support leg 4 by sliding and extending the movable support rod 61 and moving the extension leg 62 synchronously, effectively increasing the contact area between the frame 1 and the ground, thereby improving the stability of the scaffold on soft ground or uneven terrain and reducing the risk of tilting or collapse caused by unstable support.

[0033] Furthermore, when the drive disc 712 rotates, the arc-shaped extrusion groove 713 will exert an extrusion force on the pressure shaft 63. Under the extrusion action of the arc-shaped extrusion groove 713, the pressure shaft 63 will drive the movable support rod 61, which is fixedly connected to it, to slide along the inside of the support leg 4, so that the movable support rod 61 extends out of the support leg 4. The extension leg 62 is fixedly connected to one end of the movable support rod 61 that extends out of the support leg 4. Therefore, when the movable support rod 61 moves, it will simultaneously drive the extension leg 62 to move outward, thereby increasing the contact range between the support leg 4 and the ground, and achieving the effect of expanding and increasing the support area of ​​the support leg 4.

[0034] Example 3

[0035] The third embodiment of this utility model provides a building support frame with safety protection function. The control mechanism 7 includes a linkage 71 and a drive 72. The linkage 71 is disposed on the upper end of the four pressure shafts 63, and the drive 72 is disposed on the left side of the upper end of the linkage 71.

[0036] The linkage 71 includes a rotating rod 711, a drive disc 712, an arc-shaped extrusion groove 713, and a worm gear 714. The rotating rod 711 is located inside the support leg 4, and both its upper and lower ends are rotatably connected to the support leg 4. The drive disc 712 is sleeved on the surface of the rotating rod 711 and is fixedly connected to the rotating rod 711. There are four arc-shaped extrusion grooves 713, which are evenly opened around the drive disc 712. The upper ends of the four pressure shafts 63 extend into the four arc-shaped extrusion grooves 713 respectively and are movably connected to the arc-shaped extrusion grooves 713. The worm gear 714 is sleeved on the upper surface of the rotating rod 711 and is fixedly connected to the rotating rod 711.

[0037] The upper ends of the four pressure shafts 63 extend into the interior of four arc-shaped extrusion grooves 713, and each is fixedly connected to a limit block 8;

[0038] The drive component 72 includes a worm 721 and a knob 722. The worm 721 is located on the left side of the worm wheel 714 and is meshed with the worm wheel 714. Both the front and rear ends of the worm 721 are rotatably connected to the support leg 4, and the support leg 4 extends out from the front end. The knob 722 is fixedly connected to the front end of the worm 721.

[0039] The front surface of knob 722 has an internal hexagonal groove 9.

[0040] Specifically, by setting up the control mechanism 7, the synchronous linkage control of the four extended support components 6 can be realized, the support area of ​​the support leg 4 can be adjusted precisely and efficiently, and the ease of operation can be improved. At the same time, by utilizing the self-locking characteristics of the worm gear 714 and worm 721, the support status can be ensured to be stable and reliable, effectively enhancing the safety protection performance of the scaffold.

[0041] Furthermore, when expanding the support area of ​​the support leg 4, the knob 722 is rotated or a hex wrench is inserted into the internal hexagonal slot 9 to rotate the knob 722. When the knob 722 rotates, it drives the worm gear 721 to rotate. When the worm gear 721 rotates, it drives the worm wheel 714 connected to it to rotate. When the rotating rod 711 rotates, it drives the drive disc 712 sleeved on its surface to rotate together. Since four arc-shaped extrusion grooves 713 are opened around the drive disc 712, and the upper ends of the four pressure shafts 63 extend into the four arc-shaped extrusion grooves 713 and are movably connected to them, when the drive disc 712 rotates, the arc-shaped extrusion grooves 713 will generate an extrusion force on the pressure shafts 63. Under the extrusion action of the arc-shaped extrusion grooves 713, the pressure shafts 63 will drive the movable support rod 61 fixedly connected to it to slide along the inside of the support leg 4, so that the movable support rod 61 extends out of the support leg 4.

[0042] Working principle:

[0043] When expanding the support area of ​​the support leg 4, the knob 722 is rotated or a hex wrench is inserted into the internal hexagonal slot 9 to rotate the knob 722. The rotation of the knob 722 simultaneously drives the worm gear 721 to rotate, which in turn drives the worm wheel 714 meshing with it to rotate. The rotation of the rotating rod 711 causes the drive disc 712, which is sleeved on its surface, to rotate as well. Since four arc-shaped extrusion grooves 713 are formed around the drive disc 712, and the upper ends of the four pressure shafts 63 extend into and are movably connected to the four arc-shaped extrusion grooves 713, the rotation is effective. Therefore, when the drive disc 712 rotates, the arc-shaped extrusion groove 713 will exert an extrusion force on the pressure shaft 63. Under the extrusion action of the arc-shaped extrusion groove 713, the pressure shaft 63 will drive the movable support rod 61, which is fixedly connected to it, to slide along the inside of the support leg 4, so that the movable support rod 61 extends out of the support leg 4. The extension leg 62 is fixedly connected to one end of the movable support rod 61 that extends out of the support leg 4. Therefore, when the movable support rod 61 moves, it will simultaneously drive the extension leg 62 to move outward, thereby increasing the contact range between the support leg 4 and the ground, and achieving the effect of expanding and increasing the support area of ​​the support leg 4.

[0044] When it is necessary to reduce the support area, rotate the knob 722 in the opposite direction. Through the reverse transmission process, the direction of the force exerted by the arc-shaped extrusion groove 713 on the pressure shaft 63 changes, causing the movable support rod 61 and the extension leg 62 to retract into the support leg 4, thereby realizing flexible adjustment of the support area and saving storage space during subsequent disassembly.

[0045] In summary, by using the coordinated use of the following components—frame 1, tie rod 2, support plate 3, support leg 4, adjustment device 5, extended support assembly 6, movable support rod 61, extension leg 62, pressure shaft 63, control mechanism 7, linkage 71, rotating rod 711, drive disc 712, arc-shaped extrusion groove 713, worm gear 714, drive component 72, worm 721, knob 722, limit block 8, and internal hexagonal groove 9—the existing scaffolding is improved or its problems are solved to a certain extent when used on complex terrains such as mud, soft soil, or slopes. The small contact area between the bottom support legs and the ground, coupled with insufficient ground bearing capacity, can lead to support leg settlement. Ground tilting can cause lateral displacement of the scaffolding, and in severe cases, even cause the scaffolding to tilt or collapse, directly threatening the safety of construction workers. At the same time, most existing scaffolding supports are fixed structures, which cannot flexibly adjust the support range of the supports according to the ground environment, making it difficult to adapt to the needs of complex construction sites and further increasing safety hazards. This solution achieves the effect of flexibly adjusting the support range of the supports, increasing the contact area with the ground, and improving the stability of complex ground.

[0046] The frame 1, tie rod 2, support plate 3, worm gear 714 and worm 721 used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0047] It should be noted that the frame 1, tie rod 2, support plate 3, worm gear 714 and worm 721 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A building support frame with safety protection function, comprising a frame body (1), tie rods (2), and support plates (3), wherein there are two frame bodies (1), two tie rods (2), which are respectively arranged on the front and rear sides of the two frame bodies (1) and movably connected to the frame bodies (1), and two support plates (3), which are respectively arranged on the front and rear sides of the upper end of the frame body (1) and movably connected to the frame body (1), characterized in that: The front and rear sides of the lower ends of the two frames (1) are respectively fixedly connected with legs (4), and the four legs (4) are each equipped with an adjustment device (5); The adjustment device (5) includes an extension support assembly (6) and a control mechanism (7). There are four extension support assemblies (6), which are respectively arranged around the lower end of the support leg (4). The control mechanism (7) is arranged on the upper end of the four extension support assemblies (6).

2. A building support frame with safety protection function according to claim 1, characterized in that: The extended support assembly (6) includes a movable support rod (61), an extension leg (62), and a pressure shaft (63). The movable support rod (61) is located inside the front side of the support leg (4) and extends out of the support leg (4) and is slidably connected to the support leg (4). The extension leg (62) is fixedly connected to one end of the movable support rod (61) that extends out of the support leg (4). The pressure shaft (63) is fixedly connected to the lower surface of the rear end of the movable support rod (61).

3. A building support frame with safety protection function according to claim 2, characterized in that: The control mechanism (7) includes a linkage (71) and a drive (72). The linkage (71) is located on the upper end of the four pressure shafts (63), and the drive (72) is located on the left side of the upper end of the linkage (71).

4. A building support frame with safety protection function according to claim 3, characterized in that: The linkage (71) includes a rotating rod (711), a drive disc (712), an arc-shaped extrusion groove (713), and a worm gear (714). The rotating rod (711) is disposed inside the support leg (4), and both its upper and lower ends are rotatably connected to the support leg (4). The drive disc (712) is sleeved on the surface of the rotating rod (711) and is fixedly connected to the rotating rod (711). There are four arc-shaped extrusion grooves (713), which are evenly distributed around the drive disc (712). The upper ends of the four pressure shafts (63) extend into the four arc-shaped extrusion grooves (713) and are movably connected to the arc-shaped extrusion grooves (713). The worm gear (714) is sleeved on the upper surface of the rotating rod (711) and is fixedly connected to the rotating rod (711).

5. A building support frame with safety protection function according to claim 4, characterized in that: The upper ends of the four pressure shafts (63) extend into the interior of the four arc-shaped extrusion grooves (713), and each is fixedly connected to a limiting block (8).

6. A building support frame with safety protection function according to claim 4, characterized in that: The drive component (72) includes a worm (721) and a knob (722). The worm (721) is located on the left side of the worm wheel (714) and is meshed with the worm wheel (714). Both the front and rear ends of the worm (721) are rotatably connected to the support leg (4), and the front end extends out of the support leg (4). The knob (722) is fixedly connected to the front end of the worm (721).

7. A building support frame with safety protection function according to claim 6, characterized in that: The knob (722) has an internal hexagonal groove (9) on its front surface.