Dome steel structure supporting jig frame

By using the inverted Y-shaped structure of the guide block and guide groove, and the mechanical locking design of the limiting unit, the problem of low alignment accuracy of the frame in the construction of the dome steel structure was solved, realizing a fast and stable connection and disassembly process, and improving construction efficiency and equipment life.

CN224134242UActive Publication Date: 2026-04-17BEI JING XI MAN XIN XI KE JI YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEI JING XI MAN XIN XI KE JI YOU XIAN GONG SI
Filing Date
2025-05-12
Publication Date
2026-04-17

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Abstract

The utility model discloses a dome steel structure supporting jig frame, relates to the technical field of jig frames, and aims to solve the technical problems that manual alignment efficiency is low and bolt holes are prone to dislocation when frame bodies are stacked and installed, the dome steel structure supporting jig frame comprises a frame body, an inserting mechanism and a receiving mechanism, the inserting mechanism is arranged above the frame body, and the receiving mechanism is arranged below the frame body. And the receiving mechanism is arranged right below the insertion mechanism. The guide blocks and the inverted-Y-shaped guide grooves are matched in a guiding mode, the stacking and positioning process of the frame bodies is optimized, when the second frame body is arranged above the first frame body, in the process that the insertion blocks are embedded into the insertion grooves, the guide blocks distributed on the circumference of the insertion blocks are guided by the inclined faces to slide to the center positions in the grooves, horizontal deviation between the frame bodies is automatically corrected, and the stability of the frame bodies is improved. The Y-shaped structure can absorb initial alignment deviation, bolt holes of the upper fixing plate and the lower fixing plate are rapidly aligned, manual repeated calibration operation is reduced, the fixing plates are tightly attached after connection, an operator can directly fasten bolts, and the construction period is shortened.
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Description

Technical Field

[0001] This utility model relates to the field of support frame technology, and more specifically, to a dome steel structure support frame. Background Technology

[0002] In the construction of dome steel structures, the supporting frame serves as a temporary load-bearing system, primarily used for positioning and fixing steel components to ensure installation accuracy and construction safety. Existing frames typically consist of multiple frame units stacked together using bolts or welding. Fixed plates are located at the top and bottom of the frame. During installation, the height and angle must be adjusted layer by layer and the connections tightened to meet the changing curvature requirements of the dome. This type of structure must balance load-bearing strength with adjustability. During construction, localized fine-tuning is often achieved by adding or removing shims or adjusting screws. Once the main dome structure is completed, the frame is dismantled and reused.

[0003] However, when traditional multi-layer stacked scaffolding is installed, the alignment accuracy between scaffolding units relies on repeated manual calibration. Especially in cases with complex curved surfaces or large spans, the bolt holes of the upper and lower fixing plates are prone to misalignment, requiring repeated manual repositioning for alignment, which affects construction efficiency. In view of this, we propose a dome steel structure support scaffolding. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a dome steel structure support frame to solve the technical problems of low efficiency of manual alignment and easy misalignment of bolt holes when the frame is stacked and installed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dome steel structure support frame, including a frame body, an insertion mechanism and a receiving mechanism, wherein the insertion mechanism is arranged above the frame body, the receiving mechanism is arranged below the frame body, and the receiving mechanism is located directly below the insertion mechanism;

[0006] The insertion mechanism includes a base arranged above the frame via a bracket A, an insertion block arranged above the base, and multiple guide blocks spaced apart along the circumferential direction of the insertion block, with a limit unit A arranged inside each of the multiple guide blocks;

[0007] The receiving mechanism includes a cylindrical body arranged below the frame via a bracket B. The cylindrical body has a slot inside, and multiple guide grooves are spaced apart along its circumference inside the slot. Each of the multiple guide grooves is arranged with a limit unit B.

[0008] Preferably, the upper end of the insert block has a notch, and a ball bearing is arranged in the notch. The upper end of the insert block has a conical structure, and the upper end of the guide block has a pointed cone structure.

[0009] Preferably, the limiting unit A includes a cavity arranged inside the guide block, an elastic piston is arranged at one end of the cavity, a limiting block is connected to the end of the elastic piston, and the limiting block is movably arranged at the other end of the cavity.

[0010] Preferably, a vertical pole is arranged at the upper end of the cylinder, and a canopy is arranged at the upper end of the vertical pole.

[0011] Preferably, the lower end of the slot has a flared shape, and the guide groove has an inverted Y-shaped shape.

[0012] Preferably, the limiting unit B includes a limiting sleeve arranged inside the guide groove, and a sliding groove is provided on the lower inner surface of the limiting sleeve, and a push block slides inside the sliding groove.

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

[0014] 1. This utility model optimizes the positioning efficiency of stacked frame installation by designing guide block and guide groove structures. When the second frame is placed on top of the first frame, the insert block on top of the first frame can be embedded into the slot below the second frame. During the insertion process, the guide blocks distributed around its circumference are guided by the inclined surface of the inverted Y-shaped guide groove and gradually slide to the center position in the groove, thereby assisting in correcting the horizontal offset between the frames. Through the guiding effect of the Y-shaped structure, even if there is a slight deviation in the initial alignment, the guide block can naturally adjust to the predetermined path along the groove wall, so that the bolt holes of the upper and lower fixing plates can be quickly aligned. This design reduces the steps of repeated manual calibration. After the connection is completed, the fixing plates fit tightly, and the operator can directly tighten the bolts, significantly shortening the construction time.

[0015] 2. This utility model improves the guiding efficiency of frame docking by optimizing the end structure of the insert block and the guide block. The upper end of the insert block adopts a conical design, and the top of the guide block has a pointed conical structure. The combination of the two helps to reduce the insertion resistance and adapt to the contour of the slot and the guide groove. The lower end of the slot is set to a flared shape. In the initial insertion stage, the insert block can be gradually guided to move towards the center through the inclined surface contact to correct the horizontal offset. When the insert block is deeply inserted into the slot, the inclined surface of the inverted Y-shaped guide groove further constrains the movement trajectory of the pointed conical guide block, so that it slides naturally along the groove wall to the center position. This process can automatically compensate for slight misalignment between the frames and promote the rapid alignment of the bolt holes of the upper and lower fixing plates. Through the synergistic cooperation of geometric shapes, it not only reduces the frequency of manual adjustment, but also ensures the tight fit of the connecting surfaces, providing a precise alignment basis for subsequent bolt tightening.

[0016] 3. This utility model enhances the stability of the frame connection by designing a limiting block and limiting sleeve structure. After the insert block is inserted into the slot, the elastic piston is pressed and pushes the limiting block into the limiting sleeve to form a mechanical lock, preventing the insertion mechanism from accidentally disengaging from the receiving mechanism. This structure ensures the stable stacking of multiple frames while simplifying the disassembly process. During disassembly, it is only necessary to move the push block along the slide to push the limiting block out of the limiting sleeve and release the locked state. This design takes into account both the quick fixation during construction and the convenience of disassembly later. Through the mechanical interlocking and elastic reset mechanism, the frequency of manual intervention is reduced, and the component wear caused by disassembly resistance during repeated use is reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main appearance structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the insertion mechanism structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the limiting unit A of this utility model;

[0020] Figure 4 This is a schematic diagram of the receiving mechanism structure of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the receiving mechanism of this utility model;

[0022] Figure 6 This is a cross-sectional structural diagram of the limiting unit B of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Frame; 2. Insertion mechanism; 201. Bracket A; 202. Base; 203. Insert block; 204. Guide block; 205. Limiting unit A; 2051. Cavity; 2052. Elastic piston; 2053. Limiting block; 206. Notch; 207. Ball bearing; 3. Receiving mechanism; 301. Bracket B; 302. Cylinder; 303. Slot; 304. Guide groove; 305. Limiting unit B; 3051. Limiting sleeve; 3052. Slide groove; 3053. Push block; 306. Upright pole; 307. Canopy. Detailed Implementation

[0025] like Figures 1 to 6 As shown, the present invention relates to a dome steel structure support frame, which includes a frame body 1, an insertion mechanism 2 and a receiving mechanism 3. The insertion mechanism 2 is arranged above the frame body 1, and the receiving mechanism 3 is arranged below the frame body 1, with the receiving mechanism 3 located directly below the insertion mechanism 2.

[0026] The insertion mechanism 2 includes a base 202 arranged above the frame 1 via a bracket A201. An insertion block 203 is arranged above the base 202. Multiple guide blocks 204 are spaced apart along the circumference of the insertion block 203. Each of the multiple guide blocks 204 has a limit unit A205 arranged inside it.

[0027] The receiving mechanism 3 includes a cylindrical body 302 arranged below the frame 1 via a bracket B301. A slot 303 is provided inside the cylindrical body 302. Multiple guide grooves 304 are spaced apart along the circumferential direction inside the slot 303. Limiting units B305 are arranged inside each of the multiple guide grooves 304. This invention optimizes the positioning efficiency of stacked frame 1 by designing guide block 204 and guide groove 304. When the second frame 1 is placed above the first frame 1, the insert block 203 above the first frame 1 can be embedded into the slot 303 below the second frame 1. During the insertion of the insert block 203, the guide blocks 204 distributed around its circumference are guided by the inclined surface of the inverted Y-shaped guide groove 304 and gradually slide to the center position in the groove, thereby helping to correct the horizontal offset between the frame 1. Through the guiding effect of the Y-shaped structure, even if there is a slight deviation in the initial alignment, the guide block 204 can naturally adjust to the predetermined path along the groove wall, so that the bolt holes of the upper and lower fixing plates can be quickly aligned. This design reduces the steps of repeated manual calibration. After the connection is completed, the fixing plates fit tightly, and the operator can directly tighten the bolts, significantly shortening the construction time.

[0028] In an embodiment of this invention, the upper end of the insert block 203 has a recess 206, and a ball bearing 207 is arranged inside the recess 206. The upper end of the insert block 203 has a conical shape, and the upper end of the guide block 204 has a pointed conical shape. The installation of the ball bearing 207 in this invention can reduce the frictional resistance when the insert block 203 is inserted into the slot 303, and improve the smoothness of sliding.

[0029] In an embodiment of this utility model, the limiting unit A205 includes a cavity 2051 arranged inside the guide block 204. An elastic piston 2052 is arranged at one end of the cavity 2051, and a limiting block 2053 is connected to the end of the elastic piston 2052. The limiting block 2053 is movably arranged at the other end of the cavity 2051. The installation of the elastic piston 2052 in this utility model allows the limiting block 2053, which is restricted by the slot 303, to be pushed into the limiting sleeve 3051 when it moves to the position of the limiting sleeve 3051. The elastic piston 2052 elastically pushes the limiting block 2053, which is restricted by the slot 303, so that the limiting block 2053 can be locked into the limiting sleeve 3051. Without manual force, the limiting block 2053 is not easy to detach from the limiting sleeve 3051, thus indirectly stabilizing the connection between the two frames 1.

[0030] In this embodiment of the invention, a vertical rod 306 is arranged at the upper end of the cylinder 302, and a canopy 307 is arranged at the upper end of the vertical rod 306. The installation of the vertical rod 306 ensures that the canopy 307 is installed at a certain distance from the upper end of the cylinder 302. This distance creates space for ventilation inside the slot 303, preventing moisture from accumulating inside the slot 303 and causing corrosion damage. This distance also allows workers to reach inside the slot 303 to easily clean up hidden debris, preventing the accumulation of debris from affecting the insertion of the insert block 203 and the guide block 204. The installation of the canopy 307 also prevents external rainwater from flowing into the slot 303, reducing water impact damage and corrosion damage.

[0031] In an embodiment of this utility model, the lower end of the slot 303 has a flared structure, and the guide groove 304 has an inverted Y-shaped structure. This invention improves the guiding efficiency of the frame 1 docking by optimizing the end structure of the insert block 203 and the guide block 204. The upper end of the insert block 203 adopts a conical design, and the top of the guide block 204 has a pointed conical structure. The combination of the two helps to reduce the insertion resistance and adapt to the contours of the slot 303 and the guide groove 304. The lower end of the slot 303 is set to a flared shape. In the initial insertion stage, the insert block 203 can be gradually guided to move towards the center through the inclined surface contact to correct the horizontal offset. When the insert block 203 is deeply inserted into the slot 303, the inclined surface of the inverted Y-shaped guide groove 304 further constrains the movement trajectory of the pointed conical guide block 204, so that it slides naturally along the groove wall to the center position. This process can automatically compensate for the slight misalignment between the frame 1 and promote the rapid alignment of the bolt holes of the upper and lower fixing plates. Through the synergistic cooperation of geometric shapes, it not only reduces the frequency of manual adjustment, but also ensures the tight fit of the connecting surfaces, providing a precise alignment basis for subsequent bolt tightening.

[0032] In an embodiment of this utility model, the limiting unit B305 includes a limiting sleeve 3051 arranged inside the guide groove 304. A sliding groove 3052 is provided on the lower surface inside the limiting sleeve 3051, and a push block 3053 slides inside the sliding groove 3052. This utility model enhances the stability of the frame 1 connection by designing a limiting block 2053 and a limiting sleeve 3051. After the insert block 203 is inserted into the slot 303, the elastic piston 2052 is pressed to push the limiting block 2053 into the limiting sleeve 3051, forming a mechanical lock and preventing the insertion mechanism 2 from accidentally disengaging from the receiving mechanism 3. This structure ensures the stable stacking of multiple frames 1 while simplifying the disassembly process. During disassembly, only the push block 3053 needs to be moved along the slide 3052 to push the limiting block 2053 out of the limiting sleeve 3051 and release the locked state. This design takes into account both the quick fixation during construction and the convenience of disassembly later. Through the mechanical interlocking and elastic reset mechanism, the frequency of manual intervention is reduced, and the component wear caused by disassembly resistance during repeated use is reduced.

[0033] Working Principle: This embodiment provides a dome steel structure support frame. During use, workers need to stack and install it. Specifically, workers use a crane or other hoisting equipment to lift the first frame 1. After lifting, the first frame 1 is placed in the position to be installed. Once in this position, workers use bolts to fix the first frame 1 in place. After fixing, workers use the crane to lift the second frame 1 and move it above the first frame 1. After moving it to this position, workers manually move the second frame 1 and insert the insert 203 into the slot 303. When the insert 203 is inserted into the slot 303, the first and second frames... When the vertical position of the first frame 1 is consistent, the crane lowers the second frame 1. The guide block 204 installed on the side of the insert block 203 will be guided by the guide groove 304 with the inverted Y-shaped structure to slide into its interior. In this way, the fixing plate installed on the upper end of the first frame 1 and the fixing plate installed on the lower end of the second frame 1 will match and connect, and the bolt holes opened inside will overlap, which is convenient for workers to quickly connect. When the insert block 203 is inserted into the slot 303, the limiting block 2053 in its limiting unit A205 will be elastically pushed into the limiting sleeve 3051 by the elastic piston 2052. In this way, the insertion mechanism 2 and the receiving mechanism 3 are not easy to separate without manual force.

[0034] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A dome steel structure support jig, characterized by: It includes a frame (1), an insertion mechanism (2) and a receiving mechanism (3). The insertion mechanism (2) is arranged above the frame (1), and the receiving mechanism (3) is arranged below the frame (1). The receiving mechanism (3) is located directly below the insertion mechanism (2). The insertion mechanism (2) includes a base (202) arranged above the frame (1) via a bracket A (201), an insertion block (203) is arranged above the base (202), and a plurality of guide blocks (204) are spaced apart along the circumferential direction of the insertion block (203), and a limit unit A (205) is arranged inside the plurality of guide blocks (204); The receiving mechanism (3) includes a cylindrical body (302) arranged below the frame (1) via a bracket B (301). The cylindrical body (302) has a slot (303) inside. The slot (303) has a plurality of guide grooves (304) spaced apart along its circumference inside. Each of the plurality of guide grooves (304) has a limit unit B (305) arranged inside.

2. A support jig for a dome steel structure according to claim 1, characterized in that: The upper end of the insert (203) is provided with a notch (206), and a ball (207) is arranged in the notch (206). The upper end of the insert (203) is in the shape of a cone, and the upper end of the guide block (204) is in the shape of a pointed cone.

3. A support jig for a dome steel structure according to claim 2, characterized in that: The limiting unit A (205) includes a cavity (2051) arranged inside the guide block (204). An elastic piston (2052) is arranged at one end of the cavity (2051). A limiting block (2053) is connected to the end of the elastic piston (2052), and the limiting block (2053) is movably arranged at the other end of the cavity (2051).

4. A support jig for a dome steel structure according to claim 3, characterized in that: A vertical pole (306) is arranged at the upper end of the cylinder (302), and a canopy (307) is arranged at the upper end of the vertical pole (306).

5. A support jig for a dome steel structure according to claim 4, characterized in that: The lower end of the slot (303) has a flared structure, and the guide groove (304) has an inverted Y-shaped structure.

6. A support jig for a dome steel structure according to claim 5, characterized in that: The limiting unit B (305) includes a limiting sleeve (3051) arranged inside the guide groove (304). The lower surface of the limiting sleeve (3051) is provided with a sliding groove (3052), and a push block (3053) slides inside the sliding groove (3052).