Exterior wall fixing node

Abstract

The utility model provides a kind of outer wall fixed node, it is related to building field, this outer wall fixed node includes: connecting structure, connecting structure includes extension wall and support wall, support wall is fixed in extension wall, extension wall and support wall are enclosed to form first cavity, support wall has fixed slot and fixed slot is communicated with first cavity;Connecting plate, connecting plate includes connecting body and fixed branch plate, fixed branch plate is fixed in the end of connecting body, and fixed branch plate is inserted into first cavity by fixed slot;Bolt, in the length direction of fixed slot, two bolts are inserted into first cavity by fixed slot, and two bolts are located on the both sides of fixed branch plate and abut with fixed branch plate.This outer wall fixed node has higher fixed reliability and structural strength.

Description

Technical Field

[0001] This utility model relates to the field of construction, and in particular to a fixed joint for an exterior wall. Background Technology

[0002] Building exterior walls refer to the outermost part of a building that is in direct contact with the outdoor environment. Exterior walls serve functions such as building protection, regulating indoor and outdoor temperatures, waterproofing, sound insulation, and providing an aesthetically pleasing appearance. However, the relevant exterior wall structures require fixing joints to secure the wall panels to the building's interior walls, and the reliability of these fixing joints is often insufficient. Utility Model Content

[0003] This utility model provides an external wall fixing node to solve the technical problem of how to improve the connection reliability of external wall fixing nodes.

[0004] This utility model embodiment provides an external wall fixing node, which includes: a connecting structure, the connecting structure including an extension wall and a supporting wall, the supporting wall being fixed to the extension wall, the extension wall and the supporting wall surrounding to form a first cavity, the supporting wall having a fixing groove and the fixing groove communicating with the first cavity; a connecting plate, the connecting plate including a connecting body and a fixing support plate, the fixing support plate being fixed to the end of the connecting body, the fixing support plate extending into the first cavity through the fixing groove; and pins, in the length direction of the fixing groove, two pins extending into the first cavity through the fixing groove, and the two pins being located on both sides of the fixing support plate and abutting against the fixing support plate.

[0005] In some embodiments, in the length direction of the fixing groove, the sum of the dimensions of the fixing plate and the two pins is less than the dimension of the fixing groove, and the pins form an interference fit with the fixing groove.

[0006] In some embodiments, the pin is a solid structure.

[0007] In some embodiments, the pin has a hollow section that extends through the pin and is filled with insulating material.

[0008] In some embodiments, an adhesive material is provided between the fixed support plate and the inner surface of the first cavity, the adhesive material being confined between the two pins.

[0009] In some embodiments, along the length of the pin, each end of the pin has a first guide surface and a second guide surface, the first guide surface being a chamfer located at the end edge of the pin, and the second guide surface being an arc surface; when the pin is installed in the fixing groove, the second guide surface is located above the first guide surface.

[0010] In some embodiments, multiple connecting structures are spliced ​​together to form a connecting frame, which is simultaneously fixedly connected to multiple connecting plates; wherein, the extending wall and the supporting wall surround to form an insertion cavity, and the outer wall fixing node further includes corner brackets, with different parts of the corner brackets respectively inserted into the insertion cavities of two adjacent connecting structures in the connecting frame; the inner surface of the insertion cavity has a guide protrusion, and the outer surface of the corner bracket has a guide groove, with the guide protrusion located within the guide groove.

[0011] In some embodiments, the guide protrusions are multiple and spaced apart along a second direction, which is perpendicular to the depth direction of the insertion cavity; the guide groove includes a first guide groove and a second guide groove, which are spaced apart along the first direction, and the first guide groove forms a clearance fit with the guide protrusions. In the second direction, the size of the second guide groove is larger than that of the guide protrusions.

[0012] In some embodiments, the extension directions of the first guide groove and the second guide groove are both parallel to the extension direction of the corner; in the extension direction of the corner, both ends of the first guide groove have a first guide portion, and in a direction parallel to the extension direction of the corner and pointing from the end of the corner to the inside of the corner, the area of ​​the cross-section of the first guide portion decreases, and the cross-section is a plane perpendicular to the extension direction of the corner.

[0013] In some embodiments, in the extension direction of the corner group, both ends of the corner group have a second guide portion, and in a direction parallel to the extension direction of the corner group and pointing from the end of the corner group toward the interior of the corner group, the area of ​​the cross-section of the second guide portion increases, and the cross-section is a plane perpendicular to the extension direction of the corner group.

[0014] In some embodiments, the corner assembly also has a deformation groove, which is formed by the indentation of the outer surface of the corner assembly where the guide groove is provided.

[0015] This utility model provides an exterior wall fixing node for fixing a wall panel in an exterior wall structure to the wall. The fixing node includes a connecting structure and a connecting plate. The connecting structure includes an extension wall and a supporting wall. The supporting wall is fixedly connected to the extension wall and surrounds it to form a first cavity, and the supporting wall has a fixing groove communicating with the first cavity. The connecting plate includes a connecting body and a fixing support plate. The fixing support plate is inserted into the first cavity through the fixing groove. In the assembled state with the wall panel, a portion of the connecting plate extends out of the first cavity. The force between the side wall of the first cavity and the connecting plate can convert the bending moment exerted by the wall panel on the connecting plate into tensile stress. The stress can counteract the compressive stress on the compression side of the connecting plate and enhance the tensile stress on the tension side of the connecting plate. Since the connecting plate is generally made of a tough material with a tensile capacity greater than its compressive capacity, the stress condition of the connecting plate can be optimized to better suit the material performance advantages of the connecting plate by setting the first cavity, thereby improving the load-bearing capacity of the connecting plate and thus improving the reliability of the external wall fixing node. At the same time, the external wall fixing node also includes pins. In the length direction of the fixing groove, two pins clamp the fixing support plate, thereby restricting the movement of the connecting plate relative to the connecting structure in the length direction of the fixing groove, further improving the structural reliability of the external wall fixing node. Attached Figure Description

[0016] Figure 1 A schematic diagram of an exterior wall structure provided for an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of a connection structure in an external wall fixing node provided in an embodiment of this utility model;

[0018] Figure 3 An exploded view of a connection structure and a connection plate in an external wall fixing node provided in an embodiment of this utility model;

[0019] Figure 4 This is a structural schematic diagram of one type of external wall fixing node provided in an embodiment of the present utility model;

[0020] Figure 5 A schematic diagram of the structure of a pin in an external wall fixing node provided in an embodiment of this utility model;

[0021] Figure 6 An exploded view of a connection structure, a connecting plate, and a pin in an external wall fixing node provided in an embodiment of this utility model;

[0022] Figure 7 Exploded view of the connecting frame and connecting plate in the external wall fixing node provided in the embodiment of this utility model;

[0023] Figure 8Exploded view of the connection structure and corner assembly in the external wall fixing node provided in the embodiment of this utility model;

[0024] Figure 9 A schematic diagram of another connection structure in the external wall fixing node provided in the embodiment of this utility model;

[0025] Figure 10 A schematic diagram of the connection structure and corner assembly of an external wall fixing node provided in an embodiment of this utility model;

[0026] Figure 11 A cross-sectional view of one type of corner assembly in an external wall fixing node provided in an embodiment of this utility model;

[0027] Figure 12 This is a schematic diagram of a corner assembly structure in an external wall fixing node provided in an embodiment of the present utility model;

[0028] Figure 13 A cross-sectional view of another type of corner in the external wall fixing node provided in this embodiment of the utility model.

[0029] Explanation of reference numerals in the attached figures

[0030] 10. External wall fixed node; 100. Connection structure; 110. Fitting wall; 120. Extension wall; 130. Supporting wall; 131. Fixing groove; 141. First cavity; 181. Insertion cavity; 182. Guide protrusion; 200. Connecting plate; 210. Connecting body; 220. Fixing support plate; 300. Pin; 310. Hollowed-out; 320. First guide surface; 330. Second guide surface; 52. Corner assembly; 53. Guide groove; 531. First guide groove; 532. Second guide groove; 533. First guide part; 54. Second guide part; 55. Deformation groove; 50. Connecting frame. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] The specific technical features described in the various embodiments in the detailed implementation can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0033] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0034] Additionally, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate any similarity or connection between them. It should be understood that the directional descriptions such as "above," "below," "inside," and "outside" refer to the orientation under normal use conditions.

[0035] In the following specific embodiments, the wall panels in the exterior wall structure can be made of any material. For example, the wall panels can be one or more combinations of metal panels, tempered glass panels, ceramic tiles, stone slabs, and concrete slabs. The wall panels are fixed to the wall in a dry-hanging manner, that is, the wall panels and the wall are spaced far apart, so there is no adhesive structure between the wall panels and the wall. Depending on the specific structure of the exterior wall structure, the exterior wall structure can be used to achieve various functions. For example, a heat-insulating filling layer can be used in the exterior wall structure to achieve heat insulation or thermal insulation; a vacuum insulation layer can be used in the exterior wall structure to achieve sound insulation; wall decorations can be added to the exterior wall structure to improve the aesthetics of the building. The above structures can also be used in combination, so that the exterior wall structure can achieve multiple functions simultaneously. The following describes the different components in the exterior wall structure and the overall structure of the exterior wall structure by way of example, with reference to various embodiments.

[0036] External wall fixed nodes are applied to an external wall structure, firstly combined with Figure 1 The exterior wall structure is illustrated by way of example. It includes an exterior wall fixing node 10, wall panels 20, and a wall 30. The wall 30 is the interior wall structure of the building. The wall panels 20 are fixedly connected to the wall 30 via the exterior wall fixing node 10. Multiple wall panels 20 are arranged side-by-side to cover the wall 30. The exterior wall fixing node 10 includes a connecting structure 100 and a connecting plate 200. The connecting structure 100 is used for fixed connection to the wall panels 20, and the connecting plate 200 is used for fixed connection to the wall 30. Simultaneously, the connecting structure 100 and the connecting plate 200 are fixedly connected to securely connect the wall panels 20 and the wall 30. The structure and function of the connecting structure 100 and the connecting plate 200 in the exterior wall fixing node 10 are illustrated below with reference to various embodiments.

[0037] In some embodiments, such as Figure 2As shown, the connecting structure 100 includes a fitting wall 110, an extension wall 120, and a support wall 130. The outer surface of one side of the fitting wall 110 forms a fitting surface 111, which is used to fit against the wall panel 20 to achieve a fixed connection. It should be noted that the fitting surface 111 can be directly fixed to the wall panel 20 using structural adhesive. Alternatively, the fitting surface 111 can form a groove to accommodate structural adhesive and fit against the wall panel 20, thereby achieving a fixed connection.

[0038] The extension wall 120 extends from the surface of the mating wall 110 opposite to the mating surface 111, that is, from the surface of the mating wall 110 towards the mating surface 111. Figure 1 The wall 30 extends outwards, and at the same time, the extension wall 120 extends along the first direction (the first direction is as follows). Figure 2 (As indicated by the solid arrow in the middle) The first direction is not parallel to the mating surface 111, so that the extension wall 120 can extend away from the mating wall 110. Optionally, the extension wall 120 forms an acute angle with the mating surface 111. When assembling the wall panel 20, the extension wall 120 is tilted upward, that is, the end of the extension wall 120 fixed to the mating wall 110 is higher than the other end that extends. After the wall panel 20 is assembled, the tilted extension wall 120 is pressed down by the gravity of the wall panel 20, thereby applying prestress to the wall panel 20, improving the load-bearing capacity of the extension wall 120, and thus improving the reliability of the wall panel 20 fixing. Optionally, the first direction is perpendicular to the mating surface 111, so as to make full use of the size of the extension wall 120 to facilitate fixing with the wall 30. Moreover, setting the first direction to be perpendicular to the mating surface 111 can also facilitate the positioning when installing the wall panel 20. The following structural description will be based on the first direction being perpendicular to the mating surface 111.

[0039] Meanwhile, the support wall 130 and the extension wall 120 are fixedly connected, such as Figure 3 As shown, the support wall 130 and the extension wall 120 surround and form the first cavity 141, and the support wall 130 has a fixing groove 131 communicating with the first cavity 141. It can be understood that the extension wall 120 is along a third direction (such as...). Figure 3 (As indicated by the solid arrow in the middle) extending to the third direction and Figure 2 The first direction is perpendicular, and the extending wall 120 surrounds and forms a first cavity 141 with an opening. At this time, the first cavity 141 has openings at both ends in the third direction, and the first cavity 141 in the second direction (the second direction is as follows) Figure 3The first cavity 141 (as indicated by the dashed arrow) has an opening in the second direction, which is perpendicular to both the first and third directions. The support wall 130 is fixed to the end of the extension wall 120 in the second direction, thereby closing the opening in the second direction. The support wall 130 also has a fixing groove 131 that penetrates the support wall 130 and communicates with the first cavity 141. Optionally, a connection structure without a fixing groove 131 can be formed by integral molding of the support, with the fixing groove 131 machined into the support wall 130 after integral molding.

[0040] At the same time, combined Figure 3 The connecting plate 200 includes a connecting body 210 and a fixed support plate 220. The fixed support plate 220 is fixed to the end of the connecting body 210 and extends into the first cavity 141 through the fixed groove 131. It can be understood that when the connecting structure 100 is fixedly connected to the wall panel 20 and the connecting plate 200, the first opening of the first cavity 141 faces vertically. The gravity exerted by the wall panel 20 on the connecting structure 100 can be transmitted to the connecting plate 200 through the interaction force between the side wall of the first cavity 141 and the connecting plate 200, converting part of the bending moment borne by the connecting plate 200 into tensile stress. Specifically, the gravity of the wall panel 20 is transmitted to the connecting plate 200 through the connecting structure 100. At this time, the connecting plate 200 mainly bears the bending moment caused by this gravity. Under the action of the connecting plate 200, one side is under tension and the other side is under compression. The tensile capacity of the tough material is greater than its compressive capacity. By setting the first cavity 141, the bending moment portion transmitted from the connecting structure 100 to the connecting plate 200 can be converted into tensile stress. At this time, the stress on the compressive side of the connecting plate 200 can be offset by the tensile stress, and the stress on the tensile side of the connecting plate 200 is superimposed with the tensile stress. That is, the tensile effect of the connecting plate 200 is enhanced and the tensile effect is weakened. Since the connecting plate 200 is generally made of tough material, such as metal, the stress state of the connecting plate 200 is optimized by the tensile stress, thereby making better use of the tensile capacity of the connecting plate 200, so that the wall panel 20 can be more reliably fixedly connected to the wall 30, that is, the reliability of the fixed node is improved.

[0041] Moreover, such as Figure 4 As shown, the external wall fixing node 10 also includes a pin 300, which is located along the length of the fixing groove 131, and this length direction is parallel to a third direction (such as...). Figure 4Parallel to each other (as indicated by the middle arrow), two pins 300 extend from the fixing groove 131 into the first cavity 141. The two pins 300 are located on both sides of the fixing support plate 220 and abut against it. This can be understood as follows: in the third direction, the size of the fixing groove 131 is larger than the size of the fixing support plate 220, thereby reducing the risk of assembly interference between the fixing support plate 220 and the fixing groove 131 during the assembly of the connecting plate 200, thus reducing the assembly difficulty of the fixing support plate 220 and the fixing groove 131. After the connecting plate 200 and the connecting structure 100 are assembled, the two pins 300 clamp the fixing support plate 220 in the third direction, thereby restricting the movement of the connecting plate 200 relative to the connecting structure 100 in the third direction, further improving the structural reliability of the external wall fixing node 10. It should be noted that the material of the pins 300 can be any material; for example, the material of the pins 300 can be metal or a polymer.

[0042] This utility model provides an exterior wall fixing node for fixing a wall panel in an exterior wall structure to the wall. The fixing node includes a connecting structure and a connecting plate. The connecting structure includes an extension wall and a supporting wall. The supporting wall is fixedly connected to the extension wall and surrounds it to form a first cavity, and the supporting wall has a fixing groove communicating with the first cavity. The connecting plate includes a connecting body and a fixing support plate. The fixing support plate is inserted into the first cavity through the fixing groove. In the assembled state with the wall panel, a portion of the connecting plate extends out of the first cavity. The force between the side wall of the first cavity and the connecting plate can convert the bending moment exerted by the wall panel on the connecting plate into tensile stress. The stress can counteract the compressive stress on the compression side of the connecting plate and enhance the tensile stress on the tension side of the connecting plate. Since the connecting plate is generally made of a tough material with a tensile capacity greater than its compressive capacity, the stress condition of the connecting plate can be optimized to better suit the material performance advantages of the connecting plate by setting the first cavity, thereby improving the load-bearing capacity of the connecting plate and thus improving the reliability of the external wall fixing node. At the same time, the external wall fixing node also includes pins. In the length direction of the fixing groove, two pins clamp the fixing support plate, thereby restricting the movement of the connecting plate relative to the connecting structure in the length direction of the fixing groove, further improving the structural reliability of the external wall fixing node.

[0043] In some embodiments, such as Figure 4 As shown, in the length direction of the fixing groove 131, that is, in the third direction (the third direction is as follows) Figure 4As shown by the dashed arrow, the sum of the dimensions of the fixed support plate 220 and the two pins 300 is less than the dimension of the fixed groove 131, and the pins 300 and the fixed groove 131 form an interference fit. This can be understood as follows: when the connecting plate 200 and the pins 300 are assembled with the connecting structure, in the third direction, there is still a certain gap between the two pins 300 and the inner wall of the fixed groove 131. This allows the connecting plate 200 to move relative to the connecting structure 100 within a certain range in the third direction during assembly. This enables fine-tuning of the relative positions of the connecting plate 200 and the connecting structure 100 in the third direction during assembly, further facilitating the installation of the connecting plate 200 and the connecting structure 100. Simultaneously, the pins 300 form an interference fit with the fixed groove 131, meaning that the pins 300 in the first direction (e.g., the first direction is...) Figure 4 The dimension on the solid line arrow (indicated by the dimension of the fixed groove 131) is larger than the dimension of the fixed groove 131. This can be understood as follows: after the position of the connecting plate 200 and the connecting structure 100 is finely adjusted, the two pins 300 are inserted into the fixed groove 131. The friction between the pins 300 and the inner wall of the fixed groove 131 restricts the movement of the pins 300 in the third direction within the fixed groove 131. This allows the two pins 300 to reliably clamp the fixed support plate 220. Thus, after the pins 300 are installed, the movement of the connecting plate 200 relative to the connecting structure 100 in the third direction is restricted by the pins 300.

[0044] In some embodiments, such as Figure 5 As shown, the pin 300 has a perforation 310 that extends through the pin 300. That is, the perforation 310 forms an opening on the surface of the pin 300. Optionally, the perforation 310 extends in a straight line, making the shape and size of the cross-section of the pin 300 completely identical. This allows for reducing the weight and material used in the pin 300 through the perforation 310, while simultaneously enabling the pin 300 to be integrally formed through an extrusion process, further reducing the manufacturing difficulty of the pin 300. Simultaneously, the perforation 310 is filled with insulating material, and the opening formed by the perforation 310... Figure 5 In the case of a fixed support plate, the pin 300 can reliably abut against the fixed support plate 220.

[0045] Optional, such as Figure 4As shown, an adhesive material is present between the inner surfaces of the fixed support plate 220 and the first cavity 141, thereby further ensuring a reliable connection between the fixed support plate 220 and the connecting structure 100. Simultaneously, two pins 200 confine the adhesive material between them, concentrating it within a range capable of bonding the fixed support plate 220 and the inner wall of the first cavity 141. This also prevents the adhesive material from flowing out of the first cavity 141 through the third-facing opening, further improving the reliability of the connection between the fixed support plate 220 and the connecting structure 100. Optionally, combined with... Figure 4 and Figure 5 When the opening formed on the surface of the pin 300 in the cutout 310 faces the fixed support plate 220, by filling the cutout 310 with insulating material, it is possible to prevent the adhesive material from leaking out of the space defined by the two pins 300 through the cutout 310.

[0046] In some other embodiments, the pin 300 may also be a solid structure without any internal openings, thereby improving the structural strength of the pin 300.

[0047] In some embodiments, such as Figure 5 As shown, along the length of the pin 300, each end of the pin 300 has a first guide surface 320 and a second guide surface 330. The first guide surface 320 is a chamfer located at the end edge of the pin 300, and the second guide surface 330 is an arc surface. It can be understood that the first guide surface 320 is only provided at the end edge of the pin 300, and the second guide surface 330 covers the entire end face of the other side of the pin 300. This results in a lower processing cost and difficulty for the first guide surface 320 compared to the second guide surface 330, and a higher guiding effect for the second guide surface 330 compared to the first guide surface 320. Wherein, as... Figure 6As shown, with the pin 300 installed in the fixing groove 131, the second guide surface 330 is located above the first guide surface 320. It should be noted that the pin 300 and the connecting plate 200 are used simultaneously in two external wall fixing nodes 10. The connecting structures 100 in the two external wall fixing nodes 10 are located above and below the pin 300 and the connecting plate 200, respectively. After the connecting plate 200 is assembled with the connecting structure 100 of the lower external wall fixing node 10, the pin 300 is inserted into the fixing groove 131 from above. Because the pin 300 is lightweight and the opening of the fixing groove 131 is visible during installation, positioning the pin 300 is relatively easy. In this state, it can be guided by a relatively weak guiding capability and has low manufacturing cost. The first guide surface 320, which is easier to manufacture, guides the installation of the pin 300. After the pin 300 is installed, the upper parts of the pin 300 and the fixed support plate 220 extend out of the connecting structure 100 located below. At this time, the connecting structure 100 in the upper external wall fixed connection node 10 is fitted from top to bottom onto the outside of the fixed support plate 220 and the pin 300. Since it is difficult to visually determine the relative position of the pin 300 and the fixing groove 131, and the weight of the connecting structure 100 is greater than that of the pin 300, the installation difficulty of the connecting structure 100 is greater than that of the pin 300. Therefore, the guiding ability of the guiding structure of the pin 300 is required to be higher, and the connecting structure 100 needs to be guided by the second guide surface 330, which has a higher guiding ability.

[0048] In some embodiments, such as Figure 7 As shown, multiple connecting structures 100 are spliced ​​together to form a connecting frame 51. The connecting frame 51 is simultaneously fixedly connected to multiple connecting plates 200, thereby enabling... Figure 1 The load of the wall panel 20 can be simultaneously transferred to multiple connecting plates 200, that is, the load of the wall panel 20 is jointly borne by multiple connecting plates 200, which further improves the structural reliability of the external wall fixing node 10. Specifically, for example... Figure 8As shown, the corner assembly 52 is a block structure comprising two parts. The extension directions of the two parts form an included angle, such as a right angle. The two parts of the corner assembly 52 are respectively inserted into the insertion cavity 181 of the connecting structure 100. It should be noted that the corner assembly 52 can be assembled with the connecting structure 100 in different ways. For example, the corner assembly 52 can be fixedly connected to the connecting structure 100 by connecting pins. Specifically, a clearance fit or an overfit is formed between the corner assembly 52 and the slot of the connecting structure 100. At the same time, a pin hole is provided in the connecting structure 100. Adhesive is filled between the corner assembly 52 and the slot, and then the corner assembly 52 is fixedly connected to the connecting structure 100 by pins. For example, the corner assembly 52 can also be fixedly connected to the connecting structure 100 by extrusion. Specifically, the corner assembly 52 and the slot of the connecting structure 100 form an interference fit. The corner assembly 52 is simultaneously squeezed into the slots of two adjacent connecting structures 100, and the connecting structure 100 does not need to be provided with pin holes. It should be noted that the material of corner 52 can be any material, such as metal or polymer.

[0049] The insertion cavity 181 can be formed in different ways. For example, by bending the extension wall 120, an insertion cavity 181 independent of the first cavity 141 can be formed; for example, as... Figure 9 As shown, in third-party direction (third-party direction such as...) Figure 9 As indicated by the middle arrow, the first cavity 141 forms openings at both ends of the connecting structure 100. These openings can serve as insertion cavities 181. Furthermore, since the insertion cavity 181 has a support wall 130, the connecting structure 100 can be placed on the automatic corner assembly device via the support wall 130. This facilitates the automatic corner assembly device in assembling the connecting structure 100 into a connecting frame 50 via corner assembly 52. ​​Wherein, as... Figure 10 As shown, the inner surface of the insertion cavity 181 has a guide protrusion 182, and the outer surface of the corner assembly 52 has a guide groove 53. The guide protrusion 182 is located in the guide groove 53. During the process of inserting the corner assembly 52 into the insertion cavity 181, the guide can be achieved by the force between the guide protrusion 182 and the guide groove 53, thereby further reducing the assembly difficulty of the corner assembly 52.

[0050] In some embodiments, such as Figure 10 As shown, the guide protrusion 182 has multiple protrusions 182, and the multiple guide protrusions 182 are along a second direction (the second direction is as follows). Figure 10 (As indicated by the middle arrow) the spacing is set, with the first direction perpendicular to the depth direction of the insertion cavity 181; simultaneously, as... Figure 11As shown, the guide groove 53 includes a first guide groove 531 and a second guide groove 532. The first guide groove 531 and the second guide groove 532 are spaced apart, and each guide groove is used to accommodate a guide protrusion 182 to better perform the guiding function. Moreover, in the second direction, the first guide groove 531 is located between the two ends of the corner, and the second guide groove 532 extends to the end of the corner 53. Meanwhile, as... Figure 11 As shown, the first guide groove 531 and the guide protrusion 182 form a clearance fit, and in the second direction (the second direction is as shown in the figure). Figure 11 As indicated by the middle arrow, the size of the second guide groove 532 is larger than that of the guide protrusion 182. This can be understood as follows: the difference between the size of the first guide groove 531 and the size of the guide protrusion 182 is greater than zero and less than a first size threshold, which is 0.5 mm. The difference between the size of the second guide groove 532 and the size of the guide protrusion 182 is greater than the second size threshold, which can be, for example, 2 mm. That is, the tolerance level between the first guide groove 531 and the guide protrusion 182 allows the first guide groove 531 to guide the guide protrusion 182 more precisely. At the same time, the larger gap between the inner wall of the second guide groove 532 and the guide protrusion 182 makes it easier to adjust the relative position between the corner 52 and the insertion cavity 181, thereby reducing the difficulty of inserting the guide protrusion 182 into the first guide groove 531. Optionally, such as... Figure 11 As shown, in the second direction, the second guide groove 532 extends to the end of the corner 52, thereby enabling the second guide groove 532 to have a larger size in the second direction.

[0051] In some embodiments, such as Figure 12 As shown, the extension directions of the first guide groove 531 and the second guide groove 532 are both parallel to the extension direction of the corner 52. In the extension direction of the corner 52, both ends of the first guide groove 531 have a first guide portion 533. In a direction parallel to the extension direction of the corner 53 and pointing from the outer side of the end of the corner 53 towards the inside of the corner 53, the cross-sectional area of ​​the first guide portion 533 decreases. This cross-sectional area is a plane perpendicular to the extension direction of the corner. The first guide portion 533 allows... Figure 10 The guide protrusion 182 in the middle is easier to enter the first guide groove 531, which further reduces the assembly difficulty of the corner assembly 52.

[0052] In some embodiments, such as Figure 12 As shown, in the extension direction of the corner 52, both ends of the corner 52 have a second guide portion 54. In the direction parallel to the extension direction of the corner 52 and pointing from the end of the corner 52 toward the inside of the corner 52, the area of ​​the cross-section of the second guide portion 54 increases. The cross-section is a plane perpendicular to the extension direction of the corner 52, so that the corner 52 can be inserted into the insertion cavity 181 more easily.

[0053] In some embodiments, such as Figure 13 As shown, the corner assembly 52 also has a deformation groove 55. The deformation groove 55 is located on the outer surface of the corner assembly 52 where the guide groove 53 is provided, and the deformation groove 55 is formed by the indentation of the outer surface. By providing the deformation groove 53, the corner assembly 52 is more likely to deform during the process of inserting the corner assembly into the insertion cavity 181, thereby further reducing the assembly difficulty of the corner assembly 52. ​​Moreover, during the assembly process, adhesive material can be added into the insertion cavity 181. The deformation groove 55 can accommodate the adhesive material, so that more adhesive material can stay between the corner assembly 52 and the inner wall of the insertion cavity 181, further improving the connection reliability of the corner assembly 52 and the connection structure 100.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model.

Claims

1. A fixed joint for an external wall, characterized in that, The external wall fixing nodes include: A connecting structure, the connecting structure including an extension wall and a support wall, the support wall being fixed to the extension wall, the extension wall and the support wall surrounding to form a first cavity, the support wall having a fixing groove and the fixing groove communicating with the first cavity; A connecting plate, the connecting plate including a connecting body and a fixed support plate, the fixed support plate being fixed to the end of the connecting body, the fixed support plate extending into the first cavity through the fixed groove; Two pins extend from the fixing groove into the first cavity along the length direction of the fixing groove, and the two pins are located on both sides of the fixing support plate and abut against the fixing support plate.

2. The external wall fixing node according to claim 1, characterized in that, Along the length of the fixed groove, the sum of the dimensions of the fixed support plate and the two pins is less than the dimension of the fixed groove, and the pins form an interference fit with the fixed groove.

3. The external wall fixing node according to claim 1 or 2, characterized in that, The pin is a solid structure. or, The pin has a hollow section that extends through it and is filled with insulating material.

4. The external wall fixing node according to claim 3, characterized in that, An adhesive material is provided between the fixed support plate and the inner surface of the first cavity, and the adhesive material is confined between the two pins.

5. The external wall fixing node according to claim 1 or 2, characterized in that, Along the length of the pin, each end of the pin has a first guide surface and a second guide surface. The first guide surface is a chamfer located at the end edge of the pin, and the second guide surface is a circular arc surface. With the pin installed in the fixing groove, the second guide surface is located above the first guide surface.

6. The external wall fixing node according to claim 1, characterized in that, Multiple connecting structures are spliced ​​together to form a connecting frame, and the connecting frame is simultaneously fixedly connected to multiple connecting plates; The extension wall and the support wall surround and form a plug-in cavity. The outer wall fixing node also includes corner brackets, and different parts of the corner brackets are respectively inserted into the plug-in cavities of two adjacent connecting structures in the connecting frame. The inner surface of the insertion cavity has a guide protrusion, and the outer surface of the corner assembly has a guide groove, with the guide protrusion located within the guide groove.

7. The external wall fixing node according to claim 6, characterized in that, The guide protrusions are multiple, and the multiple guide protrusions are spaced apart along a second direction, which is perpendicular to the depth direction of the insertion cavity; The guide groove includes a first guide groove and a second guide groove, which are spaced apart along the first direction. The first guide groove forms a clearance fit with the guide protrusion. In the second direction, the size of the second guide groove is larger than that of the guide protrusion.

8. The external wall fixing node according to claim 7, characterized in that, The extension directions of both the first guide groove and the second guide groove are parallel to the extension direction of the corner group; In the extension direction of the corner, both ends of the first guide groove have a first guide portion. In a direction parallel to the extension direction of the corner and pointing from the end of the corner toward the inside of the corner, the area of ​​the cross-section of the first guide portion decreases. The cross-section is a plane perpendicular to the extension direction of the corner.

9. The external wall fixing node according to claim 6, characterized in that, In the extension direction of the corner group, both ends of the corner group have a second guide portion. In a direction parallel to the extension direction of the corner group and pointing from the end of the corner group toward the interior of the corner group, the area of ​​the cross-section of the second guide portion increases. The cross-section is a plane perpendicular to the extension direction of the corner group.

10. The external wall fixing node according to claim 6, characterized in that, The corner assembly also has a deformation groove, which is formed by the inward recess of the outer surface of the corner assembly where the guide groove is provided.

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