Outer wall cold bridge prevention connecting piece and modular building
By designing external wall anti-cold bridge connectors, the cold bridge problem caused by fixed keel installation direction was solved, enabling flexible installation and efficient heat insulation, improving the building's energy efficiency and construction efficiency, reducing costs and construction difficulty, and enhancing the building's stability and safety.
Patent Information
- Application Number
- CN202423311878.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
When the existing building exterior walls have a fixed keel installation direction and cannot be flexibly rotated, the problem of thermal bridging is difficult to avoid, which increases construction costs and difficulty, affects energy efficiency and indoor comfort, and may cause mold growth and structural damage.
Design an external wall anti-cold bridge connector, including a first plate, a second plate and a third plate, with fixing clips, fixing holes and adjustment holes, allowing for flexible installation direction of the keel, and using aerogel board to provide efficient heat insulation, suitable for a variety of building materials and thicknesses, and simplifying the installation process.
It effectively reduces cold bridges, improves energy efficiency, simplifies installation, lowers costs, enhances building stability and safety, extends service life, adapts to complex building layouts, and improves construction efficiency.
Smart Images

Figure CN223766978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and in particular to an external wall anti-cold bridge connector and modular building. Background Technology
[0002] The thermal bridging effect is a common problem in the construction industry, especially in exterior wall construction. A thermal bridge refers to a region within a building's insulation layer where heat can more easily transfer from the interior to the exterior due to differences in materials or structural breaks. This phenomenon causes localized areas to be cooler than surrounding areas, leading to energy loss and potential moisture problems.
[0003] Current exterior wall construction methods generally lack specific solutions for thermal bridging, and the keel can only be installed in one direction. When the keel needs to be turned, such as... Figure 1 The connector shown also needs to be reversed.
[0004] When the installation direction of the keel is fixed and cannot be flexibly changed, it restricts the structural design of the building's exterior walls, making thermal bridging more difficult to avoid. Traditional connectors are usually designed for a single direction, which is not suitable for complex building layouts. When it is necessary to change the direction of the keel, specially customized corner connectors must be used, which may increase costs and construction difficulty in engineering.
[0005] The presence of thermal bridges not only affects a building's energy efficiency but also leads to a decrease in indoor comfort. Condensation in low-temperature areas can cause damp walls, which over time may lead to mold growth, negatively impacting indoor air quality and potentially damaging the durability of the building structure.
[0006] When there is a large temperature difference between indoors and outdoors, especially in winter, the thermal conductivity of the interior and exterior walls of a building increases locally, enhancing their heat transfer capacity and causing a sharp drop in local temperature. When the warm air inside the house encounters the cold air, it forms water vapor that adheres to the walls, resulting in dampness and mold growth in the house. Utility Model Content
[0007] The purpose of this utility model is to provide an external wall anti-cold bridge connector and a modular building to solve the problems existing in the prior art.
[0008] The objective of this utility model can be achieved through the following technical solutions:
[0009] An external wall anti-cold bridge connector, the connector includes a first plate, a second plate and a third plate, the first plate is integrally formed on the upper side of the second plate, the third plate is integrally formed on the right side of the second plate, and the first plate and the third plate are connected.
[0010] The first plate is provided with a first fixing clip and a first fixing hole. The first fixing clip is used to fix the connector to the wall panel to be installed, and the first fixing hole is used to pass a bolt.
[0011] The second plate is provided with a second fixing clip and a second fixing hole. The second fixing clip is used to fix the connector to the wall panel to be installed, and the second fixing hole is used to pass a bolt.
[0012] As a preferred technical solution, the size of the first fixing hole is adapted to the size of the bolt.
[0013] In one embodiment of this utility model, the first plate is further provided with a first adjustment hole, which is located on one side of the first fixing hole. The lateral length of the first adjustment hole is greater than the outer diameter of the bolt. The first adjustment hole is used to adjust the installation error of the connector.
[0014] In one embodiment of this utility model, the second plate is further provided with a second adjustment hole and a third adjustment hole.
[0015] Two second adjustment holes are symmetrically arranged on the outside of the two second fixing clips, and the vertical length of the second adjustment hole is greater than the outer diameter of the bolt. The second adjustment holes are used to adjust the position of the connector up and down.
[0016] A third adjustment hole is laterally disposed between two second fixing clips. The lateral length of the third adjustment hole is greater than the outer diameter of the bolt. The third adjustment hole is used to adjust the position of the connector left and right.
[0017] In one embodiment of this utility model, an aerogel plate is provided at the end of the third plate away from the first plate.
[0018] In one embodiment of this utility model, a bent structure is provided at the end where the first plate and the third plate are connected. The bent structure is provided with a third fixing hole. The third plate is provided with a third fixing hole. The first plate and the third plate are fixed to the aerogel plate through the third fixing hole. The third fixing hole is used for a bolt to pass through.
[0019] In one embodiment of this utility model, the third plate is further provided with a connecting hole, the transverse length of which is greater than the outer diameter of the bolt, and the connecting hole is used to adjust the position of the connector.
[0020] In addition, this utility model also provides a modular building, including the above-mentioned external wall anti-cold bridge connector.
[0021] In one embodiment of this utility model, the modular building further includes insulation cotton, keel and outer panel. One end of the keel is fixed to the insulation cotton by a connector, and the other end of the keel is connected to the outer panel.
[0022] In one embodiment of this utility model, when the keel is set vertically, the keel is fixed to the thermal insulation cotton by the second plate of the connector.
[0023] In one embodiment of this utility model, when the keel is arranged horizontally, the keel is fixed to the thermal insulation cotton by the first plate of the connector.
[0024] In one embodiment of this utility model, the third plate is fixed to the outside of the floor slab by bolts passing through the connecting holes.
[0025] The advantages of this invention, which involves placing aerogel between the connector and the floor slab, are as follows:
[0026] 1. Superior high-temperature insulation: The nanoporous silica (SiO2) aerogel material in the aerogel board allows it to maintain an extremely low thermal conductivity even at extremely high temperatures, such as 1300℃, providing excellent high-temperature insulation.
[0027] 2. Thin design and cost-effectiveness: Aerogel panels are much thinner than traditional insulation materials, requiring only 1 / 5 to 1 / 2 of the thickness. This not only simplifies the installation process but also reduces logistics, warehousing, and labor costs, achieving a dual optimization of space utilization and cost control.
[0028] 3. Waterproof and breathable at the same time: Aerogel boards have a hydrophobicity of over 99%, which effectively prevents water penetration while maintaining good breathability, ensuring the stability of the internal environment of the material and enhancing the performance.
[0029] 4. Excellent flame retardant properties: Aerogel panels achieve a Class A flame retardant rating, which can effectively prevent and control fire sources and increase the safety factor of buildings and equipment.
[0030] 5. Long lifespan and aging resistance: Made of inorganic materials, the aerogel board has high aging resistance, high compression resilience, and strong hydrophobicity, ensuring a service life of more than 25 years, reducing the frequency of replacement and increasing long-term use value.
[0031] Compared with the prior art, the present invention has the following beneficial effects:
[0032] 1. After installing the modular building provided by this utility model, a thermal insulation barrier can be formed to separate the interior and exterior of the building, reduce cold bridges, and improve energy efficiency.
[0033] 2. The modular building provided by this utility model is suitable for insulation layers of different thicknesses. The wall deviation can be adjusted by the cooperation of multiple adjustment holes. No shims are required, simplifying installation and making installation more convenient.
[0034] 3. The modular building provided by this utility model has good compatibility and is compatible with concrete, concrete blocks, steel bars and wood. It can be applied to a variety of building applications, ensuring the integrity and stability of the wall structure. It can also be adapted to various insulation material thicknesses.
[0035] 4. The external wall anti-cold bridge connector of this utility model is designed with construction flexibility in mind, allowing wall panels to be installed horizontally or vertically without the need for additional adjustment or conversion parts, thereby simplifying the installation process and improving work efficiency.
[0036] 5. The external wall anti-cold bridge connector provided by this utility model has a high cost-performance ratio, is durable, and has good corrosion resistance. Its high cost-performance ratio is reflected in the fact that while providing excellent performance, the cost is well controlled; its durability ensures stability during long-term use, reducing the need for replacement or repair, thereby saving maintenance costs. It has good corrosion resistance, adapts to various climatic conditions, and can maintain structural integrity even in humid or corrosive environments, extending its service life.
[0037] 6. When installing the keel, whether horizontally or vertically, the external wall anti-cold bridge connector provided by this utility model does not require turning, which facilitates installation, ensures standardized construction, and further improves the overall building quality and construction efficiency. Attached Figure Description
[0038] Figure 1 This is a schematic diagram of the structure of a connector in the prior art;
[0039] Figure 2 This is a schematic diagram of the connecting component in this utility model;
[0040] Figure 3 This is a rear view structural diagram of the connector in this utility model;
[0041] Figure 4 This is a structural schematic diagram of the modular building (horizontal keel) in this utility model;
[0042] Figure 5 This is a structural schematic diagram of the modular building (vertical keel) in this utility model.
[0043] Explanation of the attached drawing numbers: 1. Connector, 2. Insulation cotton, 3. Keel, 4. Outer panel, 5. First panel, 6. Second panel, 7. Third panel, 8. Aerogel panel, 9. First fixing clip, 10. First fixing hole, 11. First adjustment hole, 12. Second fixing clip, 13. Second fixing hole, 14. Second adjustment hole, 15. Third adjustment hole, 16. Third fixing hole, 17. Connecting hole. Detailed Implementation
[0044] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.
[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0046] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0048] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0049] Example 1
[0050] See Figures 2 to 3 This embodiment provides an external wall anti-cold bridge connector. The connector 1 includes a first plate 5, a second plate 6 and a third plate 7. The first plate 5 is integrally formed on the upper side of the second plate 6, and the third plate 7 is integrally formed on the right side of the second plate 6. The first plate 5 and the third plate 7 are connected.
[0051] The first plate 5 is provided with a first fixing clip 9 and a first fixing hole 10. The first fixing clip 9 is used to fix the connector 1 to the wall panel to be installed, and the first fixing hole 10 is used to pass a bolt through.
[0052] The second plate 6 is provided with a second fixing clip 12 and a second fixing hole 13. The second fixing clip 12 is used to fix the connector 1 to the wall panel to be installed, and the second fixing hole 13 is used to pass a bolt.
[0053] In this embodiment, the size of the first fixing hole 10 is adapted to the size of the bolt.
[0054] In this embodiment, the first plate 5 is also provided with a first adjustment hole 11. The first adjustment hole 11 is located on one side of the first fixing hole 10. The lateral length of the first adjustment hole 11 is greater than the outer diameter of the bolt. The first adjustment hole 11 is used to adjust the installation error of the connector 1.
[0055] In this embodiment, the second plate 6 is further provided with a second adjustment hole 14 and a third adjustment hole 15.
[0056] Two second adjustment holes 14 are symmetrically arranged on the outside of the two second fixing clips 12. The vertical length of the second adjustment hole 14 is greater than the outer diameter of the bolt. The second adjustment hole 14 is used to adjust the position of the connector 1 up and down.
[0057] A third adjustment hole 15 is laterally disposed between two second fixing clips 12. The lateral length of the third adjustment hole 15 is greater than the outer diameter of the bolt. The third adjustment hole 15 is used to adjust the position of the connector 1 left and right.
[0058] In this embodiment, the end of the third plate 7 away from the first plate 5 is provided with an aerogel plate 8.
[0059] In this embodiment, the end where the first plate 5 and the third plate 7 are connected is provided with a bent structure, and the bent structure is provided with a third fixing hole 16. The third plate 7 is provided with a third fixing hole 16. The first plate 5 and the third plate 7 are fixed to the aerogel plate 8 through the third fixing hole 16. The third fixing hole 16 is used for passing a bolt.
[0060] In this embodiment, the third plate 7 is also provided with a connecting hole 17. The horizontal length of the connecting hole 17 is greater than the outer diameter of the bolt. The connecting hole 17 is used to adjust the position of the connector 1.
[0061] Example 2
[0062] See Figures 4 to 5 This embodiment provides a modular building, including the aforementioned external wall anti-cold bridge connector 1.
[0063] In this embodiment, the modular building also includes insulation cotton 2, keel 3 and outer panel 4. One end of the keel 3 is fixed to the insulation cotton 2 by a connector 1, and the other end of the keel 3 is connected to the outer panel 4.
[0064] In this embodiment, when the keel 3 is set vertically, the keel 3 is fixed to the insulation cotton 2 by the second plate 6 of the connector 1.
[0065] In this embodiment, when the keel 3 is arranged horizontally, the keel 3 is fixed to the insulation cotton 2 by the first plate 5 of the connector 1.
[0066] In this embodiment, the third plate 7 is fixed to the outside of the floor slab by bolts passing through the connecting hole 17.
[0067] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.
Claims
1. An exterior wall cold bridge preventing connector, characterized by, The connecting piece (1) comprises a first plate (5), a second plate (6) and a third plate (7), the upper side of the second plate (6) is integrally formed with the first plate (5), the right side of the second plate (6) is integrally formed with the third plate (7), and the first plate (5) and the third plate (7) are connected; The first plate (5) is provided with a first fixing clamp (9) and a first fixing hole (10), the first fixing clamp (9) is used for fixing the connecting piece (1) on the wall panel to be installed, and the first fixing hole (10) is used for passing through a bolt; The second plate (6) is provided with a second fixing clamp (12) and a second fixing hole (13), the second fixing clamp (12) is used for fixing the connecting piece (1) on the wall panel to be installed, and the second fixing hole (13) is used for passing through a bolt.
2. An exterior wall cold bridge preventing connector according to claim 1, wherein The first plate (5) is further provided with a first adjusting hole (11), the first adjusting hole (11) is located on one side of the first fixing hole (10), the transverse length of the first adjusting hole (11) is greater than the outer diameter of the bolt, and the first adjusting hole (11) is used for adjusting the installation error of the connecting piece (1).
3. The cold bridge preventing connecting piece for exterior wall according to claim 1, wherein The second plate (6) is further provided with a second adjusting hole (14) and a third adjusting hole (15), The two second adjusting holes (14) are symmetrically arranged on the outer sides of the two second fixing clamps (12) in the up-down direction, the vertical length of the second adjusting hole (14) is greater than the outer diameter of the bolt, and the second adjusting hole (14) is used for adjusting the position of the connecting piece (1) in the up-down direction; One third adjusting hole (15) is transversely arranged between the two second fixing clamps (12), the transverse length of the third adjusting hole (15) is greater than the outer diameter of the bolt, and the third adjusting hole (15) is used for adjusting the position of the connecting piece (1) in the left-right direction.
4. The cold bridge preventing connecting piece for exterior wall according to claim 1, wherein An aerogel plate (8) is arranged at the end of the third plate (7) away from the first plate (5).
5. An external wall cold bridge preventing connector according to claim 4, characterized in that The end of the first plate (5) and the third plate (7) is provided with a bent structure, the bent structure is provided with a third fixing hole (16), the third plate (7) is provided with a third fixing hole (16), the first plate (5) and the third plate (7) are fixed to the aerogel plate (8) through the third fixing hole (16), and the third fixing hole (16) is used for passing through a bolt.
6. An exterior wall cold bridge preventing connector according to claim 4, wherein The third plate (7) is further provided with a connecting hole (17), the transverse length of the connecting hole (17) is greater than the outer diameter of the bolt, and the connecting hole (17) is used for adjusting the position of the connecting piece (1).
7. A modular building, characterized by The modular building comprises the external wall cold bridge prevention connecting piece (1) according to any one of claims 1-6.
8. A modular building according to claim 7, wherein, The modular building further comprises thermal insulation cotton (2), a keel (3) and an outer plate (4), one end of the keel (3) is fixed to the thermal insulation cotton (2) through the connecting piece (1), and the other end of the keel (3) is connected with the outer plate (4).
9. A modular building according to claim 8, wherein, When the keel (3) is vertically arranged, the keel (3) is fixed to the thermal insulation cotton (2) through the second plate (6) of the connecting piece (1); When the keel (3) is transversely arranged, the keel (3) is fixed to the thermal insulation cotton (2) through the first plate (5) of the connecting piece (1).
10. The modular building of claim 8, wherein, The third plate (7) is fixed to the outer side of the floor through the connecting hole (17).