Cantilever steel structure support jig frame
By introducing a sliding connection design of short and long support legs in the cantilevered steel structure support frame, combined with slide rails, slide arms and pin fixation, the stability problem of traditional support frames on stepped surfaces is solved, and stable support and adaptability on stepped surfaces of different heights are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIFTH ENG DIV CORP LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-19
Smart Images

Figure CN224379476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support frame technology, specifically a cantilevered steel structure support frame. Background Technology
[0002] In the construction industry, cantilevered steel structures are widely used due to their advantages such as high strength, light weight, and good seismic resistance. The supporting frame for cantilevered steel structures plays a crucial role as a key auxiliary device in construction. Currently, traditional supporting frames mostly use frame structures welded from steel profiles and plates. When working in special environments, supporting frames with special structures are required. For example, when working on stepped surfaces, where the upper and lower steps have different heights, traditional supporting frames with legs of equal length are unsuitable. Those skilled in the art need to use supporting frames with legs of varying heights for this special environment. Because the supporting frame is generally quite tall, the center of gravity is prone to instability when the worker leaves the ground. Furthermore, taller supporting frames are relatively less stable than shorter ones. Therefore, when working on such special stepped surfaces, the stability requirements for the supporting frame are higher. However, existing supporting frames have poor stability and are unsuitable for stepped surfaces, failing to meet the requirements. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a cantilevered steel structure support frame to solve the problem of poor stability and easy overturning of traditional support frames when supported on stepped surfaces, as mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a cantilevered steel structure support frame, comprising a frame body and a support leg mechanism on the frame body, wherein the support leg mechanism includes a short support leg placed on an upper step and a long support leg placed on a lower step, and a support leg is provided on at least one side of the frame body, wherein the support leg is provided at at least one of the long support leg / short support leg, and the support leg is slidably connected to the frame body.
[0005] As a further improvement of this utility model, the frame is provided with a slide rail, and the support foot is provided with a slide arm. The slide arm is sleeved on the slide rail and slides up / down along the axis of the slide rail so that the support foot cooperates with the step for support. The slide arm is engaged with the slide rail, and the slide arm can be fixed with the slide rail after the support foot slides into place.
[0006] As a further improvement of this utility model, the support foot is also provided with a pin, and the sliding arm and the slide rail are both provided with several corresponding holes, and the pin can pass through the holes to fix the sliding arm and the slide rail.
[0007] As a further improvement of this utility model, the support foot has a bottom edge that is parallel to the end face of the step and an inclined reinforcing edge. One end of the reinforcing edge is fixedly connected to the bottom edge, and the other end is fixedly connected to the sliding arm. The bottom edge, the reinforcing edge, and the sliding arm form a triangle, and the bottom edge can be placed horizontally on the end face of the step.
[0008] As a further improvement of this utility model, a number of gripping teeth are evenly distributed on the bottom edge facing the step side.
[0009] As a further improvement of this utility model, the support leg is provided on one side corresponding to the long frame leg and placed on the lower step corresponding to the long frame leg.
[0010] Compared with existing technologies, this utility model provides a cantilevered steel structure support frame with the following advantages: This solution, by setting short support legs to adapt to upper steps and long support legs to adapt to lower steps, can directly adapt to the terrain of steps without the need for additional shims or leveling, thus improving the stability of the frame in step environments. One side of the frame is provided with a support leg that slides through it, corresponding to at least one of the long or short support legs. Sliding adjustment of the support leg can supplement the support strength, avoid unilateral force imbalance, further enhance overall stability, and the sliding connection design makes the support leg adjustment convenient, adapting to different step height differences and expanding its applicability. Attached Figure Description
[0011] Figure 1 This is a diagram showing the usage state of this utility model;
[0012] Figure 2 This is the front view of the present invention;
[0013] Figure 3 This is the front view of the support mechanism of this utility model.
[0014] Reference numerals in the attached diagram: 1. Frame body; 2. Frame leg mechanism; 3. Support leg; 4. Slide rail; 5. Slide arm; 6. Pin; 7. Socket; 21. Long frame leg; 22. Short frame leg; 31. Bottom edge; 32. Reinforcing edge; 33. Grip teeth. Detailed Implementation
[0015] As shown in the figure, in order to achieve the above-mentioned objective, this utility model provides a cantilevered steel structure support frame, including a frame body 1 and a support leg mechanism 2 on the frame body 1. The support leg mechanism 2 includes a short support leg 22 placed on the upper step and a long support leg 21 placed on the lower step. A support leg 3 is provided on the frame body 1 at least on one side of the frame body 1. The support leg 3 is provided at least one of the long support leg 21 / short support leg 22. The support leg 3 is slidably connected to the frame body 1.
[0016] In this implementation, the frame 1 adopts a steel structure frame, welded from shaped steel sections. The support leg mechanism 2 is installed at the bottom of the frame 1. The short support leg 22 of the support leg mechanism 2 is placed on the upper step, and the long support leg 21 is placed on the lower step. The tops of both the short support leg 22 and the long support leg 21 are fixed to the bottom of the frame 1. A support leg 3 is provided on one side of the frame 1. In the first implementation of this scheme, the support leg 3 is positioned corresponding to the long support leg 21, and is formed by bending a single steel plate or welding multiple steel plates. It is slidably connected to the slide rail 4 of the frame 1 via a sliding arm 5. The slide rail 4 extends along the length of the frame 1, allowing the support leg 3 to slide horizontally along the slide rail 4. In the second implementation, the support leg 3 simultaneously corresponds to both the short support leg 22 and the long support leg 21. 1. The two support legs 3 are slidably connected to the two sides of the frame 1 via slide rails 4, with the sliding direction consistent with the length direction of the frame 1, to ensure that the two sides of the frame 1 are balanced by force. During installation, the short support leg 22 and the long support leg 21 are first placed on the upper and lower steps respectively, and then the support legs 3 are slid to make them contact the corresponding step end face to complete the initial support positioning. When the support leg 3 is set to the position corresponding to the short dummy leg, the support leg 3 can support the upper step adjacent to the short support leg 22 / when the support leg 3 is set to the position corresponding to the long support leg 21, the support leg 3 can support the lower step adjacent to the long support leg 21. In other embodiments, those skilled in the art can also set the support legs 3 to the corresponding positions, all in order to make the frame 1 more stable.
[0017] As an improved specific implementation, the frame 1 is provided with a slide rail 4, and the support foot 3 is provided with a slide arm 5. The slide arm 5 is sleeved on the slide rail 4 and slides up / down along the axis of the slide rail 4 so that the support foot 3 cooperates with the step for support. The slide arm 5 is engaged with the slide rail 4. After the support foot 3 slides into place, the slide arm 5 can be fixed with the slide rail 4.
[0018] In this solution, the vertical rods on both sides of the frame 1 are fixed with slide rails 4 in the vertical direction. The sliding arms 5 on the support feet 3 are sleeved on the slide rails 4 and slide up and down along their axis to adapt to the height of the steps. This sleeved sleeve is preferably a semi-enclosed sleeve, and one of the four side walls is a limiting wall to prevent the sliding arms 5 from falling off the slide rails 4. The sliding arms 5 and the slide rails 4 are engaged by grooves and protrusions to prevent separation and ensure sliding stability. In the first fixing method of this solution, those skilled in the art can use fastening bolts on the sliding arms 5 to tighten the rear end to abut against the slide rails 4 for fixation. The second method is to set positioning holes on the slide rails 4, and install pins 6 at the corresponding positions of the sliding arms 5. After sliding into place, the elastic pins spring into the holes for fixation, and can be unlocked by inserting and pulling.
[0019] As an improved embodiment, the support foot 3 is also provided with a pin 6, and the sliding arm 5 and the slide rail 4 are both provided with several corresponding holes 7. The pin 6 can pass through the holes 7 to fix the sliding arm 5 and the slide rail 4.
[0020] In this solution, an ear plate is installed on one side of the sliding arm 5 of the support foot 3, and the pin 6 passes through the through hole of the ear plate. Several corresponding insertion holes 7 are evenly distributed along the axis of the sliding arm 5 and the slide rail 4. Using the ear plate for limiting is a conventional technical means for those skilled in the art. The pin 6 is made of steel, and the end can be a pull ring, which passes through the aligned insertion hole 7 to achieve fixation. The pull ring is detachable.
[0021] As an improved specific implementation, the support foot 3 has a bottom edge 31 that is parallel to the end face of the step and an inclined reinforcing edge 32. One end of the reinforcing edge 32 is fixedly connected to the bottom edge 31, and the other end is fixedly connected to the sliding arm 5. The bottom edge 31, the reinforcing edge 32, and the sliding arm 5 form a triangle, and the bottom edge 31 can be placed horizontally on the end face of the step.
[0022] In this solution, the angle between the reinforcing edge 32 and the bottom edge 31 is 45°, which is suitable for scenarios with small differences in step height. The second solution is an angle of 60°, which is suitable for scenarios with large differences in height. During installation, the bottom edge 31 is placed flat on the step, and the height is adjusted by sliding the sliding arm 5 along the slide rail 4 so that the bottom edge 31 fits the step. The stability of the triangle is used to enhance the load-bearing capacity of the support foot 3.
[0023] As a specific implementation of the improvement, a number of gripping teeth 33 are evenly distributed on the bottom edge 31 facing the step side.
[0024] When this solution is implemented, the gripping teeth 33 can be embedded in the gaps of the steps or concrete to prevent the support feet 3 from sliding under force and improve overall stability.
[0025] As an improved specific implementation, the support leg 3 is provided on one side of the long support leg 21 and is placed on the lower step where the long support leg 21 is located.
[0026] When implementing this solution, since the long support leg 21 is placed to correspond to the step surface of the lower step, and when the support frame is set in a stepped environment, if it is to fall, it will preferentially fall towards the step surface of the lower step. This solution preferably adopts the method of placing the support leg 3 to correspond to the lower step, which can improve the stability of the lower step, thereby improving the overall stability.
[0027] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A cantilevered steel structure support frame, characterized in that, The device includes a frame and a support leg mechanism on the frame. The support leg mechanism includes a short support leg placed on an upper step and a long support leg placed on a lower step. The frame has a support leg on at least one side corresponding to the frame. The support leg is positioned at at least one of the long support leg or the short support leg. The support leg is slidably connected to the frame.
2. The cantilevered steel structure support frame according to claim 1, characterized in that, The frame is equipped with a slide rail, and the support foot is equipped with a sliding arm. The sliding arm is sleeved on the slide rail and slides up / down along the axis of the slide rail so that the support foot cooperates with the step for support. The sliding arm is engaged with the slide rail, and the sliding arm can be fixed with the slide rail after the support foot slides into place.
3. The cantilevered steel structure support frame according to claim 2, characterized in that, The support foot is also provided with a pin, and the sliding arm and the slide rail are provided with several corresponding holes. The pin can pass through the holes to fix the sliding arm and the slide rail.
4. The cantilevered steel structure support frame according to claim 2, characterized in that, The support foot has a bottom edge parallel to the end face of the step and an inclined reinforcing edge. One end of the reinforcing edge is fixedly connected to the bottom edge, and the other end is fixedly connected to the sliding arm. The bottom edge, the reinforcing edge, and the sliding arm form a triangle. The bottom edge can be placed horizontally on the end face of the step.
5. The cantilevered steel structure support frame according to claim 4, characterized in that, The bottom edge facing the step has several gripping teeth evenly distributed.
6. The cantilevered steel structure support frame according to any one of claims 1, 2, 3, 4, or 5, characterized in that, The support leg is set on one side of the long frame leg and placed on the lower step where the long frame leg is located.