Steel beam outer convex insulation layer adjustable positioning connection structure
By installing positioning T-shaped brackets and adjusting fixing components inside the steel beams, the problems of poor spatial adaptability of insulation boards, insufficient insulation continuity, and low construction efficiency at the steel beams were solved, achieving a stable connection and efficient installation of the convex insulation layer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING LIUJIAN CONSTR GRP
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-24
Smart Images

Figure CN224549380U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of external thermal insulation installation, and in particular, it is an adjustable positioning connection structure for the protruding thermal insulation layer at the steel beam. Background Technology
[0002] In the field of steel structure buildings, external wall insulation is a core component in achieving building energy efficiency goals. Among these, the insulation structure at the steel beams has always been a key focus and challenge during construction due to the difficulty in fixing it. Traditional construction methods, such as drilling holes in the steel beams or the walls above and below them and fixing the external insulation panels with rivets, while simple to operate, have significant drawbacks: the installation process easily leads to instability of the insulation panels and frequent structural damage to the walls or steel beams themselves. For example, drilling can damage the steel coating or cause corrosion, which not only affects the building's durability but also increases subsequent maintenance costs.
[0003] To overcome the above problems, improved solutions have emerged in the prior art. For example, utility model patent CN221236220U discloses a fixing device for external insulation boards at steel beams. This device uses a connecting plate disposed between the flange plates of the steel beam, which, together with inner and outer clamping pieces, clamps the outer ends of the flange plates to achieve fixation, and uses insulation nails on the connecting plate to fix the external insulation board. This design solves the problem of damage to the wall or steel beam caused by traditional riveting fixation and achieves a detachable connection. However, this technology still has the following problems: 1. Poor spatial adaptability: The inner and outer clamps need to be clamped to the outer end of the steel beam flange, and the fixing device is highly dependent on the installation space around the flange. When there is a solid structure (such as a wall) near the flange or the space is insufficient or the shape is mismatched, the device cannot be installed effectively, and its applicability is severely limited.
[0004] 2. Insufficient insulation continuity: Because the clips are fixed to the outer end of the flange, the outer insulation board cannot fit tightly against the edge of the flange, resulting in gaps in the insulation layer. This not only weakens the insulation effect but also easily creates thermal bridging and weak insulation areas, affecting the overall energy-saving performance.
[0005] Third, limited adaptability to different working conditions: This device is only suitable for conventional working conditions where the insulation panels of the upper and lower structures of the steel beam are vertically aligned with the insulation panels at the steel beam. When the external insulation panels have special installation requirements, such as when the insulation panels at the steel beam need to protrude relative to the upper and lower structures, the connecting plate can only be fixed to the edge of the flange plate and cannot be dynamically adjusted in position. This makes it difficult to control the installation accuracy of the protruding insulation panels, and gaps are easily generated at the joints, further aggravating the problem of weak insulation.
[0006] Fourth, the structure is complex and the construction efficiency is low: the device has many components and requires the alignment of multiple holes for assembly, making the installation process cumbersome. This not only increases construction time and labor costs, but also makes the overall stability susceptible to operational errors.
[0007] Therefore, there is an urgent need to develop a new type of fixing device to improve the flexibility of installation location, positioning accuracy and adaptability to working conditions. Utility Model Content
[0008] The purpose of this utility model is to provide an adjustable positioning connection structure for the protruding insulation layer at the steel beam, in order to solve the technical problems of poor spatial adaptability, insufficient insulation continuity, limited adaptability to working conditions, and low construction efficiency of existing insulation board fixing devices.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: An adjustable positioning connection structure for an outwardly protruding insulation layer at a steel beam includes: The steel beam protrudes outward relative to the upper and lower walls and includes an upper flange plate, a lower flange plate, and a web plate. The lower surface of the upper flange plate, the upper surface of the lower flange plate, and the outer surface of the web plate together form an internal mounting groove for the beam. The positioning T-shaped bracket includes a vertical main rod, a horizontal auxiliary rod, and a fastening nut sleeve. The main rod is located in the mounting groove inside the beam, with its bottom end resting on the upper surface of the lower flange plate. A fastening space is reserved between its top end and the upper flange plate. The top end has a thread that matches the fastening nut sleeve. The fastening nut sleeve is fitted onto the thread of the main rod. Its threaded connection position relative to the main rod is adjustable up and down within the thread range and the fastening space. The top surface of the fastening nut sleeve is adjusted to extend beyond the top end of the main rod and press against the lower surface of the upper flange plate. The auxiliary rod is threaded along its entire length, and its inner end is fixedly connected to the middle of the main rod. The insulation layer at the steel beam protrudes outward relative to the insulation layers of the upper and lower walls, and its inner side is tightly attached to the outer edge of the upper flange plate and the lower flange plate. Fixing holes are opened at the positions of the auxiliary rods corresponding to the positions of the insulation layer at the steel beam. The insulation layer at the steel beam is limited to the auxiliary rods through the fixing holes and can be adjusted inside and outside along the auxiliary rods. Adjustable fixing components are clamped on both the inner and outer sides of the insulation layer at the steel beam. Each side includes a clamping piece that is tightly attached to the insulation layer at the steel beam. The clamping piece has a through hole in the center that is compatible with the auxiliary rod. It also includes a fixing nut that matches the thread of the auxiliary rod and clamps the clamping piece.
[0010] One or more positioning T-shaped brackets are installed along the length of the insulation layer at the steel beam, and one or more auxiliary rods are installed along the height of the main rod for each positioning T-shaped bracket.
[0011] An enlarged base plate is fixedly connected to the bottom of the main rod in the center.
[0012] It also includes a sealing layer, located at the contact point between the positioning T-shaped bracket and the steel beam.
[0013] The sealing layer includes an upper sealing layer and a lower sealing layer. The upper sealing layer is disposed between the top surface of the fastening nut sleeve and the lower surface of the upper flange plate; the lower sealing layer is disposed between the bottom surface of the enlarged base plate and the upper surface of the lower flange plate.
[0014] The upper and lower wall insulation layers are respectively the upper insulation layer and the lower insulation layer. The top surface of the upper insulation layer and the insulation layer at the steel beam, as well as the bottom surface of the lower insulation layer and the insulation layer at the steel beam, are all connected by a connecting insulation layer for transition splicing, and the splicing is sealed with adhesive.
[0015] A sealing layer, which is fire-retardant expanding foam, is filled between the auxiliary rod and the wall of the fixing hole.
[0016] The positioning T-shaped bracket, the enlarged base plate, and the fixing nut are all made of metal, while the clamps are made of either metal or non-metal materials.
[0017] The sealing layer is a rubber gasket, silicone gasket, or sealing strip.
[0018] Compared with the prior art, this utility model has the following features and beneficial effects: This utility model has good spatial adaptability. The positioning T-shaped bracket is designed in the inner mounting groove inside the beam, which does not rely on the installation space around the flange plate. The installation position can be adjusted as needed in the inner mounting groove of the beam to ensure installation accuracy. The fixing points can be flexibly set according to the range and thickness of the insulation material.
[0019] Except for the auxiliary rod that extends out of the mounting groove inside the beam, the rest of the positioning T-shaped bracket of this utility model is inside the beam. The outer insulation board can fit against the edge of the flange plate at the steel beam, ensuring the continuity and insulation effect of the insulation layer at the steel beam and avoiding the formation of thermal bridge effect and weak insulation areas.
[0020] This utility model has good adaptability to various working conditions. It is not only suitable for conventional working conditions, but also for situations where the external insulation board has special installation requirements, such as when the insulation board at the steel beam needs to protrude relative to the upper and lower structures. The positioning T-shaped bracket can achieve fine adjustment of the insulation board at the protruding position of the steel beam. The auxiliary rod is equipped with screw holes throughout and can be added as needed. The fixing points can be flexibly set according to the range and thickness of the insulation material to adapt to different construction scenarios. It ensures that the installation position can be dynamically controlled and that it is tightly connected with the insulation material at the upper and lower parts of the steel beam. This solves the problem of gaps easily appearing in the insulation material in the prior art and improves the continuity of insulation.
[0021] The installation of this utility model is more stable. The T-shaped positioning bracket is fixed to the steel beam by the adjustable bolts on the upper part of the main rod. With the help of the auxiliary rod adjusting the clamping insulation layer, the fixing strength is higher than that of the flange clamping structure of the prior art, reducing the risk of insulation material falling off. At the same time, it is equipped with a sealing layer and a sealing layer, and the insulation effect is more significant.
[0022] This utility model is easy to use. Simply adjust the nut to position the insulation board. The installation steps are reasonable, reducing construction time and labor costs, improving overall stability, and having clear construction steps to ensure installation accuracy, reduce human error, and improve the stability of construction quality. Attached Figure Description
[0023] The present invention will now be described in further detail with reference to the accompanying drawings.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model.
[0025] Figure 2 It is an assembly diagram of the positioning T-shaped bracket, the enlarged base plate, and the adjustment and fixing components.
[0026] Figure 3 yes Figure 2 A schematic diagram of the outer structure.
[0027] Figure 4 yes Figure 2 A schematic diagram of the inner structure.
[0028] Figure 5 This is a schematic diagram showing the assembly completed in step two of the construction method.
[0029] Figure 6 This is a schematic diagram showing the assembly completed in step three of the construction method.
[0030] Figure 7 This is a diagram showing the assembly completed in step four of the construction method.
[0031] Figure 8 This is a diagram showing the assembly completed in step five of the construction method.
[0032] Figure 9 This is a diagram showing the assembly completed in step six of the construction method.
[0033] Figure 10 This is a diagram showing the assembly completed in step seven of the construction method.
[0034] Figure 11 This is a diagram showing the assembly completed in step eight of the construction method.
[0035] Figure 12 This is a diagram showing the assembly completed in step nine of the construction method.
[0036] Figure 13 yes Figure 12 Schematic diagram of the sealing layer structure at point B.
[0037] Figure 14 yes Figure 12 Schematic diagram of the sealing layer structure at point A.
[0038] Figure 15 yes Figure 12 Schematic diagram of the adhesive structure at point D.
[0039] Reference numerals: 1-steel beam, 11-upper flange plate, 12-lower flange plate, 13-web plate, 14-installation groove inside the beam, 2-positioning T-shaped bracket, 21-main rod, 22-auxiliary rod, 23-fastening nut sleeve, 24-thread, 25-enlarged base plate, 3-insulation layer at the steel beam, 31-fixing hole, 4-adjusting and fixing component, 41-clamping piece, 42-through hole, 43-fixing nut, 5-fastening space, 6-sealing layer, 61-upper sealing layer, 62-lower sealing layer, 7-upper insulation layer, 8-lower insulation layer, 9-connecting insulation layer, 10-adhesive, 20-sealing layer. Detailed Implementation
[0040] See the examples. Figure 1-15 As shown, an adjustable positioning connection structure for an outwardly protruding insulation layer at a steel beam includes: The steel beam 1 protrudes outward relative to the upper and lower walls and includes an upper flange plate 11, a lower flange plate 12 and a web plate 13. The lower surface of the upper flange plate 11, the upper surface of the lower flange plate 12 and the outer surface of the web plate 13 enclose the beam to form an inner mounting groove 14.
[0041] The positioning T-shaped bracket 2 includes a vertical main rod 21, a horizontal auxiliary rod 22, and a fastening nut sleeve 23. The main rod 21 is located in the mounting groove 14 inside the beam, with its bottom end resting on the upper surface of the lower flange plate 12. A fastening space 5 is reserved between its top end and the upper flange plate 11. The top end is provided with a thread 24 that matches the fastening nut sleeve 23. The fastening nut sleeve 23 is fitted onto the thread of the main rod 21, and its threaded connection position relative to the main rod 21 is adjustable up and down within the thread range and the fastening space 5. The top surface of the fastening nut sleeve 23 is adjusted to extend beyond the top end of the main rod 21 and press against the lower surface of the upper flange plate 11. The auxiliary rod 22 is threaded 24 along its entire length, and its inner end is welded to the middle of the main rod 21. An enlarged base plate 25 is fixedly connected to the center of the bottom end of the main rod 21.
[0042] One or more positioning T-shaped brackets 2 are installed along the length of the insulation layer 3 at the steel beam to ensure that the wider insulation layer can be installed stably. In other embodiments, each positioning T-shaped bracket 2 is provided with one or more auxiliary rods 22 along the height direction of the main rod 21 to ensure that the taller insulation layer can be installed stably. The number of positioning T-shaped brackets 2 and auxiliary rods 22 are adjusted according to the insulation fixing requirements.
[0043] The insulation layer 3 at the steel beam protrudes outward relative to the insulation layers of the upper and lower walls, and its inner side is tightly attached to the outer edge of the upper flange plate 11 and the lower flange plate 12. A fixing hole 31 is opened at the position of the auxiliary rod 22 corresponding to the insulation layer 3 at the steel beam. The insulation layer 3 at the steel beam is limited to the auxiliary rod 22 through the fixing hole 31 and is adjustable inward and outward along the auxiliary rod 22. A sealing layer 20, which is fireproof foam or fireproof and waterproof foam, is filled between the auxiliary rod 22 and the hole wall of the fixing hole 31. The insulation layers of the upper and lower walls are respectively upper and lower insulation layers. The upper insulation layer 7 and the top surface of the insulation layer 3 at the steel beam, and the lower insulation layer 8 and the bottom surface of the insulation layer 3 at the steel beam, are all connected by a connecting insulation layer 9 for transition splicing. The splicing is sealed with adhesive 10.
[0044] Adjust the fixing component 4, which is clamped on the inner and outer sides of the insulation layer 3 at the steel beam. Each side includes a clamping piece 41 that is tightly attached to the insulation layer 3 at the steel beam. The clamping piece 41 has a through hole 42 in the center that is compatible with the auxiliary rod 22. It also includes a fixing nut 43 that matches the thread 24 of the auxiliary rod 22 and clamps the clamping piece 41. When in use, it can tightly clamp the insulation layer 3 at the steel beam.
[0045] A sealing layer 6 is located at the contact point between the positioning T-shaped bracket 2 and the steel beam 1. The sealing layer 6 includes an upper sealing layer 61 and a lower sealing layer 62. The upper sealing layer 61 is disposed between the top surface of the fastening nut sleeve 23 and the lower surface of the upper flange plate 11; the lower sealing layer 62 is disposed between the bottom surface of the enlarged base plate 25 and the upper surface of the lower flange plate 12. The sealing layer 6 is installed at the contact point between the positioning T-shaped bracket 2 and the steel beam to prevent the leakage of heat and moisture.
[0046] In this embodiment, the positioning T-shaped bracket 2, the enlarged base plate 25, and the fixing nut 43 are all made of high-strength metal materials, such as galvanized steel. The fastening nut sleeve and the fixing nut can be made of high-strength bolts. The clamping plate 41 is made of metal or non-metal materials. The clamping plate can be made of steel or plastic. The sealing layer 6 is a rubber gasket, silicone gasket, or sealing strip, which has good sealing performance and aging resistance.
[0047] In this embodiment, the specific dimensions are as follows: the width of the inner mounting groove 14 is a, the height is H, the thickness of the insulation layer 3 at the steel beam is b, the length of the auxiliary rod 22 extending through the insulation layer 3 at the steel beam is c, and the sum of the heights of the main rod 21 and the enlarged base plate 25 is equal to H-20mm, c=100mm.
[0048] The main rod 21 has a diameter of 25mm, and the auxiliary rod 22 has a diameter of 20mm; the enlarged base plate 25 has a side length of 50mm and a thickness of 10mm; the fastening nut sleeve 23 has a height of 80mm, a diameter of 55mm, and an inner diameter of 25mm for the threaded hole; the fixing nut has a diameter of 50mm, a height of 20mm, and an inner diameter of 20mm for the threaded hole; the clamping piece 41 has a side length of 100mm; the intermediate through hole 42 has a diameter of 20mm; and the sealing layer 6 has a side length of 60mm and a thickness of 1mm.
[0049] The construction method for thermal insulation positioning of steel beams using this utility model is as follows: Step 1, Surface treatment of steel beam 1: Before installing the positioning T-shaped bracket 2, the surface of steel beam 1 needs to be cleaned and treated. Remove oil, rust, dust and other impurities from the surface of steel beam 1 to ensure that the surface of steel beam 1 is clean and flat.
[0050] Step 2, see Figure 5 As shown, the T-shaped bracket 2 is installed as follows: Based on the dimensions of the steel beam 1 and the installation requirements of the insulation layer 3 at the steel beam, the installation position of the bracket is determined. First, a sealing layer 62 is placed at the designed position on the lower flange plate 12. The bottom surface of the enlarged base plate 25 of the main rod 21 is placed on the lower sealing layer 62 to ensure that the lower sealing layer 62 seals the lower flange plate 12 and the enlarged base plate 25 tightly without gaps. During the installation process of the main rod 21, measuring tools such as a level and a theodolite are used for measurement and adjustment to ensure that the position and angle of the T-shaped bracket 2 are accurate.
[0051] Step 3, see Figure 6 As shown, for the fastening nut sleeve 23: the upper sealing layer 61 is placed on the fastening nut sleeve 23 or connected to the bottom surface of the upper flange plate 11 in the fastening space 5 in advance, and then the fastening nut sleeve 23 knob is rotated upward until the top surface exceeds the top surface of the main rod 21 and is pressed against the bottom surface of the upper flange plate 11, ensuring that the upper sealing layer 61 seals the upper flange plate 11 and the fastening nut sleeve 23 tightly without gaps; at this time, the positioning T-shaped bracket 2 is pressed tightly on the steel beam to ensure that the positioning T-shaped bracket 2 is installed firmly.
[0052] Step four, see Figure 7 As shown, the installation of the connecting insulation layer 9 is as follows: The connecting insulation layer 9 consists of two horizontal sections, the length of which is adapted to the degree of outward protrusion of the insulation layer at the steel beam. The connecting insulation layer 9 is fixedly connected to the upper insulation layer 7 and the lower insulation layer 8 respectively using adhesive. During the installation process, attention should be paid to ensuring that the joints of the insulation layers are tight to avoid gaps and voids.
[0053] Step 5, see Figure 8As shown, the insulation layer 3 at the steel beam is drilled or passes through the gap between adjacent insulation layers according to the position of the positioning T-shaped bracket 2 and the size of the auxiliary rod 22. Then, the inner fixing nut 43 and the clamp 41 are fitted onto the auxiliary rod 22.
[0054] Step Six, see Figure 9 As shown, the fixing hole 31 on the insulation layer 3 at the steel beam is passed through the auxiliary rod 22, and the position of the insulation layer 3 at the steel beam on the auxiliary rod 22 is adjusted so that the upper and lower surfaces of the insulation layer 3 at the steel beam are aligned with and tightly fitted with the connecting insulation layer 9. During the adjustment process, measuring tools should be used for real-time monitoring to ensure that the installation accuracy of the insulation layer 3 at the steel beam meets the requirements.
[0055] Step 7, see Figure 10 As shown, the sealing layer 20 is filled into the fixing hole 31.
[0056] Step 8, see Figure 11 As shown, the outer clamping piece 41 and the fixing nut 43 are sleeved on the auxiliary rod 22. After fixing the position of the insulation layer 3 at the steel beam, the nut is tightened so that the inner and outer clamping pieces 41 clamp the insulation layer 3 at the column steel beam. Step nine, see Figure 12 As shown, the upper and lower surfaces of the insulation layer 3 at the steel beam are fixed to the connecting insulation layer 9 using adhesive 10. The instructions for use of adhesive 10 must be followed to ensure a firm bond.
[0057] Step 10, Inspection and Acceptance: After construction is completed, conduct a comprehensive inspection and acceptance of the entire insulation and positioning system. Inspection items include whether the brackets are securely installed, whether the insulation layer is tightly installed, and whether the sealing layer is intact.
Claims
1. An adjustable positioning connection structure for an outwardly protruding insulation layer at a steel beam, characterized in that, include: The steel beam (1) protrudes outward relative to the upper and lower walls and includes an upper flange plate (11), a lower flange plate (12) and a web plate (13). The lower surface of the upper flange plate (11), the upper surface of the lower flange plate (12) and the outer surface of the web plate (13) enclose the beam to form an inner mounting groove (14). The positioning T-shaped bracket (2) includes a vertical main rod (21), a horizontal auxiliary rod (22), and a fastening nut sleeve (23). The main rod (21) is located in the mounting groove (14) inside the beam, with its bottom end resting on the upper surface of the lower flange plate (12). A fastening space (5) is reserved between the top end and the upper flange plate (11). The top end is provided with a thread (24) that matches the fastening nut sleeve (23). The fastening nut sleeve (23) is fitted onto the thread of the main rod (21). Its threaded connection position relative to the main rod (21) is adjustable up and down within the thread range and the fastening space (5). The top surface of the fastening nut sleeve (23) is adjusted to extend beyond the top end of the main rod (21) and press against the lower surface of the upper flange plate (11). The auxiliary rod (22) is provided with threads (24) along its entire length, and its inner end is fixedly connected to the middle part of the main rod (21). The insulation layer (3) at the steel beam protrudes outward relative to the insulation layers of the upper and lower walls, and its inner side is tightly attached to the outer edge of the upper flange plate (11) and the lower flange plate (12). The insulation layer (3) at the steel beam has a fixing hole (31) at the position corresponding to the auxiliary rod (22). The insulation layer (3) at the steel beam is limited to the auxiliary rod (22) through the fixing hole (31) and can be adjusted inside and outside along the auxiliary rod (22). Adjust the fixing component (4) and clamp it on the inner and outer sides of the insulation layer (3) at the steel beam. Each side includes a clamping piece (41) that is close to the insulation layer (3) at the steel beam. The clamping piece (41) has a through hole (42) in the center that is compatible with the auxiliary rod (22). It also includes a fixing nut (43) that matches the thread (24) of the auxiliary rod (22) and clamps the clamping piece (41).
2. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 1, characterized in that: One or more positioning T-shaped brackets (2) are set along the length of the insulation layer (3) at the steel beam, and one or more auxiliary rods (22) are set along the height of the main rod (21) of each positioning T-shaped bracket (2).
3. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 1, characterized in that: An enlarged base plate (25) is fixedly connected to the bottom of the main rod (21).
4. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 3, characterized in that: It also includes a sealing layer (6), which is located at the contact position between the positioning T-shaped bracket (2) and the steel beam (1).
5. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 4, characterized in that: The sealing layer (6) includes an upper sealing layer (61) and a lower sealing layer (62). The upper sealing layer (61) is disposed between the top surface of the fastening nut sleeve (23) and the lower surface of the upper flange plate (11); the lower sealing layer (62) is disposed between the bottom surface of the enlarged base plate (25) and the upper surface of the lower flange plate (12).
6. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 1, characterized in that: The upper and lower wall insulation layers are respectively the upper insulation layer (7) and the top surface of the insulation layer (3) at the steel beam, and the bottom surface of the lower insulation layer (8) and the insulation layer (3) at the steel beam are all connected by the connecting insulation layer (9), and the joint is sealed by the adhesive (10).
7. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 1, characterized in that: A sealing layer (20) is filled between the auxiliary rod (22) and the wall of the fixing hole (31), and the sealing layer (20) is fireproof foam.
8. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 3, characterized in that: The positioning T-shaped bracket (2), the enlarged base plate (25) and the fixing nut (43) are all made of metal materials, and the clamp (41) is made of metal or non-metal materials.
9. The adjustable positioning connection structure for the protruding insulation layer at the steel beam according to claim 4 or 5, characterized in that: The sealing layer (6) is a rubber gasket, silicone gasket or sealing strip.