Universal joint type connection

Abstract

The utility model discloses a universal joint type connector, comprising an upper fork of the universal joint and a lower fork of the universal joint, wherein the upper fork of the universal joint is located inside the lower fork of the universal joint, the upper part of the upper fork of the universal joint is connected to the panel mounting ear plate of the decorative panel through a Z-axis rotation adjustment mechanism, the lower part of the upper fork of the universal joint is provided with an X-direction fork groove, an X-direction rotation adjustment block is penetrated in the X-direction fork groove, the X-direction rotation adjustment block is pivotally connected in the X-direction fork groove through a Y-direction rotating shaft, a first positioning locking structure is provided between the X-direction rotation adjustment block and the upper fork of the universal joint, and a second positioning locking structure is provided between the X-direction rotation adjustment block and the lower fork of the universal joint; the bottom of the lower fork of the universal joint is detachably connected to the main structure of the building. The beneficial effects of the utility model are: the whole connection structure is simple, has the function of three-axis rotation adjustment and simultaneous shaping and locking, and can adapt to the connection between the decorative panel and the main structure of the building at different distances and angles.

Description

Technical Field

[0001] The utility model relates to the technical field of building fixed workpieces, in particular to a universal joint type connecting piece. Background Art

[0002] The curtain wall is the outer wall of the building. It is non-load-bearing and is hung up like a curtain, so it is also called a hanging wall. It is a lightweight wall with decorative effects commonly used in modern large and high-rise buildings. It is usually composed of a panel and the main building structure behind it. The facade of modern buildings has a demand for curved and special-shaped shapes. The main structure of the building is mostly designed as a grid, steel structure, etc. that is close to the curved surface of the outer skin. In this case, the distance, angle, and relative position between the panel and the main body are extremely complex. If the connectors are connected according to the conventional curtain wall connection method, it is necessary to customize a large number of connectors with different angles and lengths. At the same time, the actual structure must be re-measured to consider the structural deviation customization. The construction is also very troublesome and inefficient. Not only does it increase the cost of the project, but it also prolongs the construction period, which not only affects the economic benefits, but also wastes time. Utility Model Content

[0003] In order to overcome the above shortcomings, the utility model proposes a universal joint type connector which can adjust the installation angle according to actual needs, has a simple structure, is easy to install, and saves costs.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A universal joint type connecting piece, characterized in that: it comprises an upper fork piece of a universal joint and a lower fork piece of a universal joint which are arranged opposite to each other at fork openings, the upper fork piece of the universal joint is located inside the lower fork piece of the universal joint, the upper part of the upper fork piece of the universal joint is connected to the panel mounting ear plate of the decorative panel through a Z-axis rotation adjustment mechanism, the lower part of the upper fork piece of the universal joint is provided with an X-direction fork groove, an X-direction rotation adjustment block passes through the X-direction fork groove, the X-direction rotation adjustment block is a hollow cylindrical body, the X-direction rotation adjustment block is pivotally connected to the X-direction fork groove through a Y-direction rotating shaft vertically passing through the upper fork piece of the universal joint, a first positioning locking structure is provided between the X-direction rotation adjustment block and the upper fork piece of the universal joint, and a second positioning locking structure is provided between the X-direction rotation adjustment block and the lower fork piece of the universal joint; the bottom of the lower fork piece of the universal joint is detachably connected to the main structure of the building.

[0006] Preferably, the upper gimbal fork member includes a pair of oppositely arranged first fork arms and a top connecting piece for connecting the two first fork arms. The two first fork arms and the top connecting piece jointly define an X-direction fork groove in a C shape or a U shape; through holes for the Y-direction rotating shaft to penetrate are provided on the two first fork arms; mounting holes for mounting the Z-axis rotation adjustment mechanism and two threaded holes for mounting the first positioning and locking structure are provided on the top connecting piece, and the threaded holes are symmetrically distributed on both sides of the mounting hole.

[0007] Preferably, the lower gimbal fork member includes a pair of oppositely arranged second fork arms, a bottom connecting piece for connecting the two second fork arms, and mounting lugs provided on the bottom connecting piece. The two second fork arms and the bottom connecting piece jointly define a Y-direction fork groove in a C shape or a U shape; adjustment holes for the X-direction rotation adjustment block to penetrate are provided on the two second fork arms, and second positioning and locking structures are mounted after both ends of the X-direction rotation adjustment block penetrate through the adjustment holes on the same side; the mounting lugs are detachably connected to the main body reserved ear plates of the building main body structure.

[0008] Preferably, the top connecting piece and the bottom connecting piece are parallel, and the first fork arms, the second fork arms, and the top connecting piece are perpendicular and orthogonal.

[0009] Preferably, the mounting lug is a sheet body integrally formed at the bottom of the bottom connecting piece and perpendicular to the bottom connecting piece. The mounting lug has a first surface and a second surface facing away from each other. The first surface is a toothed surface, and a metal toothed gasket meshing with the toothed surface of the first surface is arranged on the first surface; the metal toothed gasket is a single-sided toothed metal gasket. The second surface of the mounting lug is in contact with the main body reserved ear plate, and the first surface of the mounting lug meshes with the toothed surface of the metal toothed gasket; a first hinge through hole is provided on the metal toothed gasket, a Z-direction adjustment hole is provided on the mounting lug, and a second hinge through hole is provided on the main body reserved ear plate. A connecting bolt sequentially passes through the first hinge through hole, the Z-direction adjustment hole, and the second hinge through hole and is connected to a first fastening nut.

[0010] Preferably, the Z-direction adjustment hole is an oblong hole.

[0011] Preferably, the X-direction rotation adjustment block is a hollow columnar body with an oblong cross-section. Arc-shaped limiting grooves extending along the length direction of the X-direction rotation adjustment block and inserted and matched with the second positioning and locking structure are formed on the oppositely arranged arc-shaped inner walls of the upper and lower parts of the X-direction rotation adjustment block, and the openings of the two arc-shaped limiting grooves are arranged opposite to each other.

[0012] Preferably, the first positioning locking structure is a rotation locking adjustment screw that vertically passes through the top connecting plate, the rotation locking adjustment screw is installed in the threaded hole, and the end of the rotation locking adjustment screw extending into the X-direction fork groove conflicts with the X-direction rotation adjustment block.

[0013] Preferably, the second positioning locking structure includes an end locking plate, which is provided with two pairs of positioning holes, one pair of positioning holes is equipped with rotation locking screws for clamping the opposite sides of the X-axis rotation adjustment block, and the other pair of positioning holes is equipped with end plate fixing screws for inserting into the arc-shaped limit groove.

[0014] Preferably, the Z-axis rotation adjustment mechanism includes a Z-axis screw with a nut and a second locking nut, a third locking nut, and a fourth locking nut threadedly connected to the Z-axis screw, the lower end of the Z-axis screw is inserted into the mounting hole, and is connected to the top connecting plate of the fork member on the universal joint through the tightened nut and the second locking nut, and the upper end of the Z-axis screw is inserted into the panel mounting ear plate, and is connected to the panel mounting ear plate through the tightened third locking nut and the fourth locking nut.

[0015] Advantageously, the universal joint type connector of the utility model is a connector with three-axis rotation adjustment and fixed locking designed based on the principle of the universal joint transmission shaft. When the X-axis rotation angle needs to be adjusted, the second positioning locking structures at both ends of the X-axis rotation adjustment block are loosened to adjust the rotation angle of the X-axis rotation adjustment block around the central axis (i.e., the X-axis) in its own length direction; when the Y-axis rotation angle needs to be adjusted, the two rotation locking adjustment screws are screwed to adjust the Y-axis rotation angle of the X-axis rotation adjustment block. After the X-axis and Y-axis positions are adjusted, the rotation locking screws of the second positioning locking structure are re-tightened, wherein a pair of rotation locking screws are clamped on the surface of the X-axis rotation adjustment block at the same time, and the other pair of rotation locking screws are inserted into the two arc-shaped limit grooves of the X-axis rotation adjustment block to achieve locking of the X-axis rotation adjustment block; when the Z-axis position needs to be adjusted, the Z-axis rotation adjustment mechanism and the mounting ears on the lower fork of the universal joint and the mounting positions of the reserved ear plates of the main body are adjusted to adapt to the connection between the decorative panels of different distances and angles and the main structure of the building. This structure uses a rotating shaft type mechanical connection, and realizes the connection between the panel and the frame at different angles and positions through locking screws, without the need to customize a large number of connectors with different angles and lengths, and has strong adaptability. In addition, the mounting ears of the present application are provided with toothed surfaces, which can improve the connection reliability when combined with metal toothed gaskets.

[0016] The beneficial effects of the utility model are as follows: the entire connection structure is simple, has three-axis rotation adjustment and a shaping and locking function, does not require customization, can adapt to the connection between decorative panels of different distances and angles and the main structure of the building, greatly saves workpieces and saves production costs; the structural design of the connector is scientific and reasonable, and the installation is convenient, which can effectively reduce the difficulty of installing the metal aluminum plate and greatly shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model.

[0018] Figure 2 It is a structural diagram of the fork member on the universal joint of the utility model.

[0019] Figure 3 It is a structural diagram of the lower fork of the universal joint of the utility model.

[0020] Figure 4 This is a structural diagram of the X-axis rotation adjustment block of the utility model.

[0021] Figure 5 It is a cross-sectional schematic diagram of the X-axis rotation adjustment block of the utility model.

[0022] Figure 6 It is an exploded view of the second positioning and locking structure of the utility model.

[0023] Figure 7 It is an exploded view of the utility model.

[0024] Figure 8 This is one of the connection diagrams of the present invention (the dotted arrows at X, Y, and Z represent the rotation directions respectively).

[0025] Fig. 9 This is the second connection diagram of the present invention (the dotted arrows at X, Y, and Z represent the rotation directions respectively).

[0026] In the attached figure:

[0027] 1. Universal joint upper fork; 11. First fork arm; 111. Rotating shaft hole; 12. Top connecting piece; 121. Mounting hole; 122. Threaded hole;

[0028] 2. Universal joint lower fork; 21. Second fork arm; 211. Adjustment hole; 22. Bottom connecting plate; 23. Mounting ear; 231. Z-direction adjustment hole; 24. Metal toothed gasket; 25. Connecting bolt; 26. First fastening nut;

[0029] 3. Z-axis rotation adjustment mechanism; 31. Z-axis screw; 32. Nut; 33. Second locking nut; 34. Third locking nut; 35. Fourth locking nut;

[0030] 4. X-axis rotation adjustment block; 41. arc-shaped limit groove; 411. notch; 42. shaft mounting through hole;

[0031] 5. Y-axis rotating shaft; 51. second fastening nut;

[0032] 6. First positioning locking structure;

[0033] 7. Second positioning and locking structure; 71. End locking plate; 711. Positioning hole; 72. Rotation locking screw; 73. End plate fixing screw;

[0034] 8. Decorative panel; 81. Panel mounting lugs;

[0035] 9. Main building structure; 91. Main body reserved ear plates. DETAILED DESCRIPTION

[0036] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0037] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0038] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.

[0039] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0043] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0044] A universal joint type connecting piece described in the present utility model includes a universal joint upper fork piece 1 and a universal joint lower fork piece 2 with opposite fork openings. The universal joint upper fork piece 1 is located inside the universal joint lower fork piece 2. The upper part of the universal joint upper fork piece 1 is connected to the panel mounting ear plate 81 of the decorative panel 8 through a Z-axis rotation adjustment mechanism 3. The lower part of the universal joint upper fork piece 1 is provided with an X-direction fork groove, and an X-direction rotation adjustment block 4 penetrates through the X-direction fork groove. The X-direction rotation adjustment block 4 is a hollow columnar body, and the X-direction rotation adjustment block 4 is pivotally connected in the X-direction fork groove through a Y-axis rotating shaft 5 vertically penetrating the universal joint upper fork piece. A first positioning and locking structure 6 is arranged between the X-direction rotation adjustment block 4 and the universal joint upper fork piece 1, and a second positioning and locking structure 7 is arranged between the X-direction rotation adjustment block 4 and the universal joint lower fork piece 2; the bottom of the universal joint lower fork piece 2 is detachably connected to the building main structure 9.

[0045] In some embodiments of the present utility model, the universal joint upper fork piece 1 includes a pair of relatively arranged first fork arms 11 and a top connecting piece 12 for connecting the two first fork arms. The two first fork arms 11 and the top connecting piece 12 jointly define an X-direction fork groove in a C shape or a U shape; through holes 111 for the Y-axis rotating shaft to penetrate are arranged on the two first fork arms 11; an installation hole 121 for installing the Z-axis rotation adjustment mechanism and two threaded holes 122 for installing the first positioning and locking structure 6 are arranged on the top connecting piece 12, and the threaded holes 122 are symmetrically distributed on both sides of the installation hole 121.

[0046] In some embodiments of the present utility model, the universal joint lower fork piece 2 includes a pair of relatively arranged second fork arms 21, a bottom connecting piece 22 for connecting the two second fork arms, and an installation ear 23 arranged on the bottom connecting piece. The two second fork arms 21 and the bottom connecting piece jointly define a Y-direction fork groove in a C shape or a U shape; adjustment holes 211 for the X-direction rotation adjustment block to penetrate are arranged on the two second fork arms 21, and both ends of the X-direction rotation adjustment block 4 respectively penetrate through the adjustment holes on the same side and then install the second positioning and locking structure 7; the installation ear 23 is detachably connected to the main body reserved ear plate 91 of the building main structure 9.

[0047] In some embodiments of the present utility model, the top connecting piece 12 and the bottom connecting piece 22 are parallel, and the first fork arms 11 and the second fork arms 21, the top connecting piece 12 are vertically orthogonal.

[0048] In some embodiments of the utility model, the mounting ear 23 is a sheet body integrally formed at the bottom of the bottom connecting plate and perpendicular to the bottom connecting plate, the mounting ear 23 has a first surface and a second surface that are opposite to each other, the first surface is a toothed surface, and the first surface is provided with a metal toothed gasket 24 that meshes with the toothed surface of the first surface; the metal toothed gasket 24 is a single-sided toothed metal gasket, the second surface of the mounting ear 23 contacts the main body reserved ear plate 91, and the first surface of the mounting ear 23 meshes with the toothed surface of the metal toothed gasket 24; the metal toothed gasket 24 is provided with a first hinged through hole, the mounting ear 23 is provided with a Z-direction adjustment hole 231, and the main body reserved ear plate is provided with a second hinged through hole, and the connecting bolt 25 is inserted into the first hinged through hole, the Z-direction adjustment hole, the second hinged through hole in sequence and connected with the first fastening nut 26.

[0049] In some embodiments of the present invention, the Z-axis adjustment hole is a waist-shaped hole.

[0050] In some embodiments of the utility model, the X-axis rotation adjustment block 4 is a hollow cylindrical body with an oval cross-section, and the material can be made of aluminum alloy; the upper and lower opposing arc-shaped inner walls of the X-axis rotation adjustment block 4 are formed with arc-shaped limit grooves 41 extending along the length direction of the X-axis rotation adjustment block and plugging and cooperating with the second positioning locking structure, and the notches 411 of the two arc-shaped limit grooves 41 are arranged opposite to each other; the two oppositely arranged planes of the X-axis rotation adjustment block 4 are provided with a shaft mounting through hole 42 for the Y-axis rotation shaft 5 to pass through.

[0051] In some embodiments of the present invention, the Y-axis rotating shaft 5 is an adjusting screw, and the adjusting screw passes through the first fork arm, the X-axis rotating adjusting block 4 and is connected to the second fastening nut 51 .

[0052] In some embodiments of the utility model, the first positioning locking structure 6 is a rotation locking adjustment screw that vertically passes through the top connecting plate, the rotation locking adjustment screw is installed in the threaded hole, and the end of the rotation locking adjustment screw extending into the X-direction fork groove conflicts with the X-direction rotation adjustment block.

[0053] In some embodiments of the present invention, the second positioning locking structure 7 includes an end locking plate 71, and two pairs of positioning holes 711 are provided on the end locking plate 71, one pair of positioning holes is equipped with rotation locking screws 72 for clamping the opposite sides of the X-axis rotation adjustment block, and the other pair of positioning holes is equipped with end plate fixing screws 73 for inserting into the arc-shaped limit groove.

[0054] In some embodiments of the utility model, the end locking plate 71 is a rectangular plate abutting against the second fork arm and used to cover the adjustment hole; a pair of positioning holes is provided at the central axis of the end locking plate 71, and a positioning hole is provided at each of the two pairs of top corners of the end locking plate 71.

[0055] In some embodiments of the utility model, the Z-axis rotation adjustment mechanism 3 includes a Z-axis screw 31 with a nut 32 and a second locking nut 33, a third locking nut 34, and a fourth locking nut 35 threadedly connected to the Z-axis screw. The lower end of the Z-axis screw 31 is inserted into the mounting hole and is connected to the top connecting plate 12 of the fork member 1 on the universal joint through the tightened nut 32 and the second locking nut 33. The upper end of the Z-axis screw 31 is inserted into the panel mounting ear plate 81 and is connected to the panel mounting ear plate 81 through the tightened third locking nut 34 and the fourth locking nut 35.

[0056] In some embodiments of the present invention, the Y-axis rotating shaft and the Z-axis screw are made of stainless steel.

[0057] The universal joint type connector of the utility model is a connector with three-axis rotation adjustment and fixed locking designed based on the principle of universal joint transmission shaft. When the X-axis rotation angle needs to be adjusted, the second positioning locking structures 7 at both ends of the X-axis rotation adjustment block are loosened to adjust the rotation angle of the X-axis rotation adjustment block 4 around the central axis (i.e., the X-axis) in its own length direction; when the Y-axis rotation angle needs to be adjusted, the two rotation locking adjustment screws are screwed, and the end heights of the two rotation locking adjustment screws are adjusted to adjust the Y-axis rotation angle of the X-axis rotation adjustment block. After the X-axis and Y-axis positions are adjusted, the rotation locking screws of the second positioning locking structure are tightened again, wherein a pair of rotation locking screws are clamped on the surface of the X-axis rotation adjustment block at the same time, and the other pair of rotation locking screws are inserted into the two arc-shaped limit grooves of the X-axis rotation adjustment block to realize the locking of the X-axis rotation adjustment block; when the Z-axis position needs to be adjusted, the Z-axis rotation adjustment mechanism and the mounting ears on the lower fork of the universal joint and the mounting positions of the reserved ear plates of the main body are adjusted to adapt to the connection between the decorative panels of different distances and angles and the main structure of the building. This structure uses a rotating shaft type mechanical connection, and realizes the connection between the panel and the frame at different angles and positions through locking screws, without the need to customize a large number of connectors with different angles and lengths, and has strong adaptability. In addition, the mounting ears of the present application are provided with toothed surfaces, which can improve the connection reliability when combined with metal toothed gaskets.

[0058] The above examples are intended to illustrate the embodiments disclosed in the present utility model and should not be construed as limitations on the present utility model. In addition, the various modifications listed herein and the changes in the methods and compositions in the utility model are obvious to those skilled in the art without departing from the scope and spirit of the present utility model. Although the present utility model has been specifically described in conjunction with a variety of specific preferred embodiments of the present utility model, it should be understood that the present utility model should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included in the scope of the present utility model.

Claims

1. A universal joint type connector, characterized in that: It includes a cardan joint upper fork member (1) and a cardan joint lower fork member (2) with opposite fork openings. The cardan joint upper fork member (1) is located inside the cardan joint lower fork member (2). The upper part of the cardan joint upper fork member (1) is connected to the panel mounting ear plate (81) of the decorative panel (8) through a Z-axis rotation adjustment mechanism (3). The lower part of the cardan joint upper fork member (1) is provided with an X-direction fork groove, and an X-direction rotation adjustment block (4) passes through the X-direction fork groove. The X-direction rotation adjustment block (4) is a hollow columnar body, and the X-direction rotation adjustment block (4) is pivotally connected in the X-direction fork groove through a Y-axis rotating shaft (5) vertically passing through the cardan joint upper fork member (1). A first positioning and locking structure is provided between the X-direction rotation adjustment block (4) and the cardan joint upper fork member (1), and a second positioning and locking structure (7) is provided between the X-direction rotation adjustment block (4) and the cardan joint lower fork member (2); the bottom of the cardan joint lower fork member (2) is detachably connected to the building main structure (9).

2. The universal joint type connector according to claim 1, characterized in that: The cardan joint upper fork member (1) includes a pair of oppositely arranged first fork arms (11) and a top connecting piece (12) for connecting the two first fork arms (11). The two first fork arms (11) and the top connecting piece (12) together define an X-direction fork groove in a C shape or a U shape; through holes (111) for the Y-axis rotating shaft (5) to pass through are provided on the two first fork arms (11); mounting holes (121) for installing the Z-axis rotation adjustment mechanism (3) and two threaded holes (122) for installing the first positioning and locking structure are provided on the top connecting piece (12), and the threaded holes (122) are symmetrically distributed on both sides of the mounting hole (121).

3. The universal joint type connector according to claim 1, characterized in that: The cardan joint lower fork member (2) includes a pair of oppositely arranged second fork arms (21), a bottom connecting piece (22) for connecting the two second fork arms (21), and mounting ears (23) provided on the bottom connecting piece (22). The two second fork arms (21) and the bottom connecting piece (22) together define a Y-direction fork groove in a C shape or a U shape; adjustment holes (211) for the X-direction rotation adjustment block (4) to pass through are provided on the two second fork arms (21), and the two ends of the X-direction rotation adjustment block (4) respectively pass through the adjustment holes (211) on the same side and then the second positioning and locking structure (7) is installed; the mounting ears (23) are detachably connected to the main body reserved ear plate (91) of the building main structure (9).

4. The universal joint type connection according to claim 3, characterized in that: The mounting ear (23) is a sheet body integrally formed at the bottom of the bottom connecting plate (22) and perpendicular to the bottom connecting plate (22), the mounting ear (23) having a first surface and a second surface which are opposite to each other, the first surface being a toothed surface, the first surface being provided with a metal toothed gasket (24) meshing with the first surface; the metal toothed gasket (24) is a single-sided toothed metal gasket, the second surface of the mounting ear (23) is in contact with the main body reserved ear plate (91), the first surface of the mounting ear (23) is meshed with the toothed surface of the metal toothed gasket (24); the metal toothed gasket (24) is provided with a first hinged through hole, the mounting ear (23) is provided with a Z-direction adjustment hole (231), the main body reserved ear plate (91) is provided with a second hinged through hole, the connecting bolt is sequentially inserted into the first hinged through hole, the Z-direction adjustment hole (231), and the second hinged through hole to be connected with the first fastening nut (26).

5. The universal joint type connection according to claim 4, characterized in that: The Z-direction adjustment hole (231) is a waist-shaped hole.

6. The universal joint type connection according to claim 1, characterized in that: The X-axis rotation adjustment block (4) is a hollow cylindrical body with an oval cross-section. The upper and lower opposing arc-shaped inner walls of the X-axis rotation adjustment block (4) are formed with arc-shaped limit grooves (41) extending along the length direction of the X-axis rotation adjustment block (4) and plugged into the second positioning locking structure (7). The notches (411) of the two arc-shaped limit grooves (41) are arranged opposite to each other.

7. The universal joint type connection according to claim 2, characterized in that: The first positioning locking structure is a rotation locking adjustment screw that vertically penetrates the top connecting plate (12), the rotation locking adjustment screw is installed in the threaded hole (122), and the end of the rotation locking adjustment screw that extends into the X-direction fork groove conflicts with the X-direction rotation adjustment block (4).

8. The universal joint type connection according to claim 6, characterized in that: The second positioning locking structure (7) comprises an end locking plate (71), on which two pairs of positioning holes (711) are arranged, wherein one pair of positioning holes (711) is provided with rotation locking screws (72) for clamping two opposite side surfaces of the X-axis rotation adjustment block (4), and the other pair of positioning holes (711) is provided with end plate fixing screws (73) for inserting into the arc-shaped limiting groove (41).

9. The universal joint type connection according to claim 2, characterized in that: The Z-axis rotation adjustment mechanism (3) comprises a Z-axis screw rod (31) with a nut (32) and a second locking nut (33), a third locking nut (34), and a fourth locking nut (35) threadedly connected to the Z-axis screw rod. The lower end of the Z-axis screw rod (31) is inserted into the mounting hole and connected to the top connecting plate (12) of the fork member (1) on the universal joint through the tightened nut (32) and the second locking nut (33). The upper end of the Z-axis screw rod (31) is inserted into the panel mounting ear plate (81) and connected to the panel mounting ear plate (81) through the tightened third locking nut (34) and the fourth locking nut (35).

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