High-fault-tolerance self-locking and quick-unlocking connecting joint for steel structure module building

Abstract

The invention discloses a steel structure module building high-fault-tolerance self-locking and quick-unlocking connecting joint, and relates to the technical field of building engineering, the steel structure module building high-fault-tolerance self-locking and quick-unlocking connecting joint comprises a lower corner piece, a connecting plate, a conical head tenon piece, a rotating clamping bamboo shoot, a spring, a rib plate, a rotating shaft, an upper corner piece, an upper column, a lower column and an unlocking piece; the lower corner piece is connected to the lower column, the connecting plate is placed on the lower corner piece, a connecting hole is formed in the middle of the connecting plate, the conical head tenon piece penetrates through the connecting hole to be fixed to the lower corner piece, and the upper corner piece is connected with the bottom of the upper column. The upper corner fitting is provided with the conical unlocking bolt hole and the conical unlocking bolt groove, so that high fault tolerance is achieved when the upper corner fitting is screwed in, the opening diameter of the conical unlocking bolt hole and the conical unlocking bolt groove is much smaller than that of the upper square hole of the upper corner fitting, the conical design is matched with the unlocking conical thread head, and large fault tolerance space can be achieved to be connected with the unlocking conical thread head to complete unlocking.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a high-fault-tolerant self-locking and quick-unlocking connection node for a steel structure module building. Background Art

[0002] Steel structure modular building is a highly prefabricated building that divides traditional houses into single rooms or a certain three-dimensional building space as building module units. It is prefabricated in the factory and quickly assembled into a whole building on site by connecting nodes.

[0003] Modular buildings are different from traditional building construction methods. Since the modules already have a certain beam-column system when they leave the factory, there will be multiple beams and columns at the node positions after the modules are assembled. The authorization publication number CN217734350U discloses a socket-type bolt connection node structure of a steel structure modular building, which includes an upper box steel column, a lower box steel column, an upper box I-beam, a lower box I-beam, an upper plug piece, a lower socket piece and bolts.

[0004] This technical solution uses multiple bolts to connect the limiting holes of the receiving part and the limiting holes of the plug part. However, due to the high precision requirements for the installation of modular buildings, this method that requires precise docking has a low fault tolerance rate during actual manual installation, and both installation and unlocking require screwing them one by one, so that the connection node cannot be quickly self-locked and unlocked, and the bolts exposed outside are easily loosened by others, which poses certain safety hazards. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a highly fault-tolerant self-locking and quick-unlocking connection node for a steel structure module building, which solves the problems existing in the above-mentioned prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A high fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings, comprising a lower corner piece, a connecting plate, a cone-head tenon piece, a rotating catch, a spring, a rib plate, a rotating shaft, an upper corner piece, an upper column, a lower column and an unlocking piece; The lower corner piece is connected to the lower column, the connecting plate is placed on the lower corner piece, and a connecting hole is provided in the middle of the connecting plate, the cone-head tenon is passed through the connecting hole and fixed to the lower corner piece, the upper corner piece is connected to the bottom of the upper column, and the bottom of the upper corner piece is in contact with the connecting plate; A pair of parallel ribs are respectively provided on the four sides of the upper corner piece, and the rotating clips are respectively provided between each pair of ribs. At least two springs connected to the inner wall of the upper corner piece are provided on the back of each rotating clip. A rotating shaft is provided on each pair of ribs, and the rotating clips are connected to the rotating shaft. The cone-head tenon and the rotating latch are connected via a contact surface; A connecting piece is provided on the top of the cone head tenon, and the unlocking piece is fixed to the connecting piece to realize unlocking.

[0007] Preferably, a tapered threaded hole is provided in the middle of the lower corner piece.

[0008] Preferably, the bottom of the cone-head tenon is provided with a cone-head thread connected to the tapered threaded hole, the cone-head tenon is provided with a first layer of tenons and a second layer of tenons, and the tops of the first layer of tenons and the second layer of tenons are provided with upper tenon inclined surfaces, and the bottoms of the first layer of tenons and the second layer of tenons are provided with lower tenon inclined surfaces.

[0009] Preferably, the rotating latch is provided with a first layer of latches and a second layer of latches, and the tops of the first layer of latches and the second layer of latches are both provided with upper latch bevels, the bottoms of the first layer of latches and the second layer of latches are both provided with lower latch bevels, and the rotating latch is provided with a latch shaft hole connected to the rotating shaft, wherein the lower bevel of the tenon of the first layer of tenons contacts with the upper bevel of the first layer of latches, the upper bevel of the tenon of the second layer of tenons contacts with the lower bevel of the first layer of latches, and the lower bevel of the tenon of the second layer of tenons contacts with the upper bevel of the second layer of latches.

[0010] Preferably, an upper hole is provided at the top of the upper corner piece, and a lower hole is provided at the bottom of the upper corner piece.

[0011] Preferably, the unlocking member includes an unlocking rod, and the unlocking rod includes an unlocking rod handle and an unlocking conical threaded head arranged at the bottom of the unlocking rod handle.

[0012] Preferably, the connecting member is a tapered unlocking bolt hole arranged on the top of the tapered tenon member, and the tapered unlocking bolt hole matches the unlocking tapered thread head.

[0013] Preferably, the connecting piece includes a groove opened at the top of the cone head tenon piece, the top inner wall of the groove is fitted with a cone unlocking bolt groove matching the unlocking cone thread head, the bottom of the cone unlocking bolt groove is connected to the electric telescopic rod arranged in the groove, a slide rail is vertically arranged in the groove, and the top of the slide rail is slidably connected to a slide rod connected to the cone unlocking bolt groove, the inner walls of both sides of the groove are provided with guide rods, the guide rods are slidably sleeved with a baffle rod, the bottom of the baffle rod is meshed with a transmission gear, the transmission gear is arranged on a transmission shaft connected with the groove, tooth plates are arranged on both sides of the cone unlocking bolt groove, and the sides of the tooth plates on both sides away from each other are meshed with a driving gear, the driving gear is arranged on a driving shaft connected with the groove, a driving pulley is arranged on the driving shaft, a transmission double-groove pulley is arranged on the transmission shaft, and a driving belt is arranged between the driving pulley and the transmission double-groove pulley.

[0014] Preferably, anti-rotation rods are laterally penetrated on both sides of the upper inclined surface of the tenon at the top of the first layer of tenons, and a driven gear is meshingly connected to the top of the anti-rotation rod. The driven gear is arranged on a driven shaft connected to the groove, and a driven pulley is arranged on the driven shaft, and a driven belt is arranged between the driven pulley and the transmission double-groove pulley.

[0015] The present invention provides a high fault-tolerant self-locking and quick-unlocking connection node for steel structure module buildings. Compared with the prior art, it has the following beneficial effects: 1. The technical solution has a smaller diameter at the bottom of the tapered thread and a larger diameter at the top of the tapered threaded hole, so it has a higher tolerance when screwing in. The opening diameters of the tapered unlocking bolt hole and the tapered unlocking bolt groove are much smaller than the upper hole of the upper corner piece, and the tapered design cooperates with the unlocking tapered thread head, so there is a larger tolerance space to achieve unlocking by connecting with the unlocking tapered thread head; the tapered tenon has two layers of tenons, the rotating latch has two layers of latches, and there is a certain tolerance distance between the tapered tenon and the rib plate, so it has a higher tolerance rate during the connection process, and is connected through the contact surface of the tapered tenon and the rotating latch, thereby realizing a quick self-locking connection, and is connected to the connecting piece through the unlocking piece, and then the tapered thread is loosened and the tapered tenon is pulled up to the upper column to quickly achieve unlocking.

[0016] 2. The technical solution is provided with a liftable conical unlocking bolt groove, so that after self-locking, the conical unlocking bolt groove can be stored downward, and the blocking rod automatically moves to the opposite side while being stored, and then after storage, the blocking rod can be moved to the top of the conical unlocking bolt groove to cover the conical unlocking bolt groove, thereby preventing others from using the unlocking piece to connect with the conical unlocking bolt groove privately to unlock, thereby improving safety; when the conical unlocking bolt groove is stored downward, the blocking rods on both sides move toward the opposite side, and at this time, the anti-rotation rods on both sides move toward the side away from each other, so that the anti-rotation rods on both sides can be extended between the paired ribs on both sides, thereby increasing the rotation radius of the cone head tenon, so that when the cone head tenon rotates, the ribs will hinder the rotation of the anti-rotation rod, so that after the conical unlocking bolt groove is stored downward, it is prevented that others use tools to clamp the first layer of tenon to rotate to loosen the cone head thread on the cone head tenon, thereby further improving the stability after self-locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural decomposition of the present invention in a decomposed state; Figure 2 is a schematic diagram of the lower corner piece of the present invention; Figure 3 is a schematic diagram of a connecting plate of the present invention; Figure 4 is a schematic diagram of a cone head tenon of the present invention; Figure 5 It is a schematic diagram of the rotary catch of the present invention; Figure 6 It is a schematic diagram of the rib plate and the rotating shaft of the present invention; Figure 7 is a schematic diagram of an upper corner piece of the present invention; Figure 8 A schematic diagram of the unlocking lever of the present invention; Fig. 9 It is a cross-sectional schematic diagram of the connection completion state of the present invention; Fig.10 It is a schematic diagram of a second embodiment of the connecting piece of the present invention; Fig.11 is a cross-sectional schematic diagram of a second embodiment of a connecting piece of the present invention; Fig.12 It is a schematic diagram of the baffle rod and the anti-rotation rod of the present invention.

[0018] In the figure: 1, lower corner piece; 2, connecting plate; 3, cone-head tenon piece; 4, rotating latch; 5, spring; 6, rib plate; 7, rotating shaft; 8, upper corner piece; 9, upper column; 10, lower column; 11, unlocking lever; 1-1, tapered threaded hole; 2-1, connecting hole; 3-1, cone-head thread; 3-2, tapered unlocking bolt hole; 3-3, second-layer tenon; 3-4, first-layer tenon; 3-5, upper inclined surface of tenon; 3-6, lower inclined surface of tenon; 4-1, first-layer latch; 4-2, second-layer latch; 4-3, upper inclined surface of latch; 4-4, lower inclined surface of latch; 4-5, Latch shaft hole; 8-1, upper hole; 8-2, lower hole; 11-1, unlocking tapered thread head; 11-2, unlocking lever handle; 12, groove; 13, tapered unlocking bolt groove; 14, electric telescopic rod; 15, guide rod; 16, stop rod; 17, transmission shaft; 18, transmission gear; 19, toothed plate; 20, driving gear; 21, driving shaft; 22, driving pulley; 23, driving double-groove pulley; 24, driving belt; 25, anti-rotation rod; 26, driven gear; 27, driven shaft; 28, driven pulley; 29, driven belt; 30, slide rod; 31, slide rail. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 12 , the present invention provides the following three technical solutions: The first embodiment: a high fault-tolerant self-locking and quick-unlocking connection node for a steel structure module building, comprising a lower corner piece 1, a connecting plate 2, a cone-head tenon piece 3, a rotating catch 4, a spring 5, a rib plate 6, a rotating shaft 7, an upper corner piece 8, an upper column 9, a lower column 10 and an unlocking piece; The lower corner piece 1 is connected to the lower column 10, which can be welded. The connecting plate 2 is placed on the lower corner piece 1, and a connecting hole 2-1 is provided in the middle of the connecting plate 2. The cone-head tenon 3 passes through the connecting hole 2-1 and is fixed to the lower corner piece 1. Here, it is inserted and then rotated and tightened. The upper corner piece 8 is connected to the bottom of the upper column 9, which can be welded. The bottom of the upper corner piece 8 contacts the connecting plate 2. A pair of parallel ribs 6 are respectively provided on the four sides of the upper corner piece 8, and the rotating catches 4 are respectively arranged between each pair of ribs 6. At least two springs 5 ​​connected to the inner wall of the upper corner piece 8 are arranged on the back of each rotating catch 4, so that the springs 5 ​​can be shortened when the rotating catch 4 is squeezed. A rotating shaft 7 is provided on each pair of ribs 6, and the rotating catch 4 is connected to the rotating shaft 7, so that the cone head tenon 3 can be installed on the rotating catch 4; The cone-head tenon 3 and the rotating catch 4 are connected through the contact surface, thereby achieving self-locking; A connecting piece is provided on the top of the cone head tenon 3, and the unlocking piece is fixed to the connecting piece to realize unlocking.

[0021] A tapered threaded hole 1 - 1 is provided in the middle of the lower corner piece 1 .

[0022] The bottom of the tapered tenon 3 is provided with a tapered thread 3-1 connected to the tapered threaded hole 1-1, the lower diameter of the tapered thread 3-1 is smaller, and the upper hole diameter of the tapered threaded hole 1-1 is larger, so it has a higher tolerance when screwing in, and the tapered tenon 3 is provided with a first layer of tenons 3-4 and a second layer of tenons 3-3, and the tops of the first layer of tenons 3-4 and the second layer of tenons 3-3 are provided with upper tenon inclined surfaces 3-5, and the bottoms of the first layer of tenons 3-4 and the second layer of tenons 3-3 are provided with lower tenon inclined surfaces 3-6.

[0023] The rotating latch 4 is provided with a first layer of latches 4-1 and a second layer of latches 4-2, and the tops of the first layer of latches 4-1 and the second layer of latches 4-2 are provided with upper latch bevels 4-3, and the bottoms of the first layer of latches 4-1 and the second layer of latches 4-2 are provided with lower latch bevels 4-4. The rotating latch 4 is provided with a latch shaft hole 4-5 connected with the rotating shaft 7, wherein the lower bevel 3-6 of the tenon of the first layer of tenon 3-4 contacts with the upper bevel 4-3 of the first layer of latch 4-1, the upper bevel 3-5 of the tenon of the second layer of tenon 3-3 contacts with the lower bevel 4-4 of the first layer of latch 4-1, and the lower bevel 3-6 of the tenon of the second layer of tenon 3-3 contacts with the upper bevel 4-3 of the second layer of latch 4-2, so as to realize contact connection.

[0024] An upper hole 8-1 is provided at the top of the upper corner piece 8, and a lower hole 8-2 is provided at the bottom of the upper corner piece 8. The upper hole 8-1 is used for the passage of the unlocking rod 11 when unlocking, and the lower hole 8-2 is used for the passage of the cone head tenon piece 3 when connected.

[0025] The unlocking member includes an unlocking rod 11, and the unlocking rod 11 includes an unlocking rod handle 11-2 and an unlocking conical thread head 11-1 arranged at the bottom of the unlocking rod handle 11-2.

[0026] The connecting piece is a tapered unlocking bolt hole 3-2 set on the top of the tapered tenon 3, and the tapered unlocking bolt hole 3-2 matches the unlocking tapered thread head 11-1. The tapered unlocking bolt hole 3-2 cooperates with the unlocking tapered thread head 11-1, and can have a larger fault tolerance space to achieve connection and unlocking. When unlocking, the unlocking tapered thread head 11-1 and the tapered unlocking bolt hole 3-2 are tightened and connected, and the unlocking rod handle 11-2 is used to lift the tapered tenon 3 upward after tightening when unlocking.

[0027] The second embodiment is mainly different from the first embodiment in that: the connecting piece includes a groove 12 opened at the top of the cone head tenon 3, and the top inner wall of the groove 12 is fitted with a cone unlocking bolt groove 13 matching the unlocking cone thread head 11-1. The unlocking cone thread head 11-1 and the cone unlocking bolt groove 13 can also be tightened and connected. The bottom of the cone unlocking bolt groove 13 is connected to an electric telescopic rod 14 arranged in the groove 12. The electric telescopic rod 14 can be powered and remotely controlled by existing technology. A slide rail 31 is vertically arranged in the groove 12, and the top of the slide rail 31 is slidably connected with a slide rod 30 connected to the cone unlocking bolt groove 13, which can guide the cone unlocking bolt groove 13, and when the cone unlocking bolt groove 13 is rotated under force, it is convenient to drive the cone head tenon. Part 3 rotates, guide rods 15 are provided on the inner walls of both sides of the groove 12, and a baffle rod 16 is slidably sleeved on the guide rod 15. In order to enable the baffle rod 16 to move to the required position, a transmission gear 18 is meshed and connected at the bottom of the baffle rod 16, and the transmission gear 18 is arranged on a transmission shaft 17 connected to the groove 12. Tooth plates 19 are provided on both sides of the conical unlocking bolt groove 13, and the sides of the tooth plates 19 on both sides away from each other are meshed and connected with a driving gear 20, which is arranged on a driving shaft 21 connected to the groove 12, and a driving pulley 22 is provided on the driving shaft 21, and a transmission double-groove pulley 23 is provided on the transmission shaft 17. A driving belt 24 is provided between the driving pulley 22 and the transmission double-groove pulley 23, wherein a belt tensioning wheel can be used at the driving belt 24 to ensure the tensioning force.

[0028] The toothed plate 19 drives the driving gear 20 to rotate, so that the driving belt 24 drives the transmission gear 18 to rotate, thereby driving the blocking rod 16 to move.

[0029] After self-locking, the conical unlocking bolt groove 13 is retracted downward, and the blocking rod 16 automatically moves to the opposite side while being retracted. After being retracted, the blocking rod 16 can be moved to the top of the conical unlocking bolt groove 13 to cover the conical unlocking bolt groove 13, thereby preventing others from using the unlocking conical thread head 11-1 to privately connect with the conical unlocking bolt groove 13 to unlock, thereby improving safety.

[0030] The third embodiment is mainly different from the second embodiment in that: anti-rotation rods 25 are laterally penetrated on both sides of the upper inclined surface 3-5 of the tenon at the top of the first layer of tenons 3-4, and a driven gear 26 is meshed and connected to the top of the anti-rotation rod 25. The driven gear 26 is arranged on a driven shaft 27 connected to the groove 12, and a driven pulley 28 is arranged on the driven shaft 27. A driven belt 29 is arranged between the driven pulley 28 and the transmission double-groove pulley 23, wherein a belt tensioning pulley can also be used at the driven belt 29 to maintain the tension.

[0031] The transmission double-groove pulley 23 rotates, so that the driven pulley 28 drives the driven gear 26 to rotate, and then the anti-rotation rod 25 can extend out of the upper tenon inclined surface 3-5 at the top of the first layer of tenons 3-4, so that it can enter between the paired ribs 6 on both sides. By increasing the rotation radius of the cone head tenon 3, when the cone head tenon 3 rotates, the ribs 6 will hinder the rotation of the anti-rotation rod 25, so that after the conical unlocking bolt groove 13 is stored downward, it is prevented from loosening the cone head thread 3-1 on the cone head tenon 3 by clamping the first layer of tenons 3-4 with tools to rotate, thereby further improving the stability after self-locking.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0033] When in use, the cone-head tenon 3 is connected with the cone threaded hole 1-1, so that the contact surface of the cone-head tenon 3 and the rotating catch 4 can be connected to achieve self-locking. After self-locking is completed, the cone unlocking bolt groove 13 is retracted downward, so that the blocking rod 16 can be moved to block above the cone unlocking bolt groove 13, and the anti-rotation rod 25 extends between each pair of ribs 6 on both sides, so that it cannot be unlocked by the cone unlocking bolt groove 13, nor can it be unlocked by clamping the first layer of tenon 3-4 and rotating. When unlocking is needed, the cone unlocking bolt groove 13 is moved upward and reset, and the blocking rod 16 and the anti-rotation rod 25 can be retracted. At this time, the unlocking cone thread head 11-1 is tightened and connected with the cone unlocking bolt groove 13. After tightening, continue to twist the cone unlocking bolt groove 13, which can drive the cone head thread 3-1 on the cone head tenon 3 to be gradually loosened. After loosening, pull the cone head tenon 3 upward to pull it up to the upper column 9, which can quickly achieve unlocking.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings, characterized in that: It comprises a lower corner piece (1), a connecting plate (2), a cone-head tenon piece (3), a rotating catch (4), a spring (5), a rib plate (6), a rotating shaft (7), an upper corner piece (8), an upper column (9), a lower column (10) and an unlocking piece; The lower corner piece (1) is connected to the lower column (10), the connecting plate (2) is placed on the lower corner piece (1), and a connecting hole (2-1) is provided in the middle of the connecting plate (2), the cone-head tenon (3) passes through the connecting hole (2-1) and is fixed to the lower corner piece (1), the upper corner piece (8) is connected to the bottom of the upper column (9), and the bottom of the upper corner piece (8) is in contact with the connecting plate (2); A pair of parallel ribs (6) are respectively provided on the four sides of the upper corner piece (8); the rotating catch (4) is respectively arranged between each pair of ribs (6); at least two springs (5) connected to the inner wall of the upper corner piece (8) are arranged on the back of each rotating catch (4); a rotating shaft (7) is arranged on each pair of ribs (6), and the rotating catch (4) is connected to the rotating shaft (7); The cone-head tenon (3) and the rotating latch (4) are connected via a contact surface; A connecting piece is provided on the top of the cone head tenon (3), and the unlocking piece is fixed to the connecting piece to achieve unlocking.

2. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 1, characterized in that: A tapered threaded hole (1-1) is provided in the middle of the lower corner piece (1).

3. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 2, characterized in that: The bottom of the cone-head tenon (3) is provided with a cone-head thread (3-1) connected to the cone-shaped threaded hole (1-1); a first-layer tenon (3-4) and a second-layer tenon (3-3) are provided on the cone-head tenon (3); the tops of the first-layer tenon (3-4) and the second-layer tenon (3-3) are both provided with a tenon upper inclined surface (3-5); and the bottoms of the first-layer tenon (3-4) and the second-layer tenon (3-3) are both provided with a tenon lower inclined surface (3-6).

4. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 3, characterized in that: The rotating latch (4) is provided with a first layer of latches (4-1) and a second layer of latches (4-2), and the tops of the first layer of latches (4-1) and the second layer of latches (4-2) are both provided with latch upper inclined surfaces (4-3), and the bottoms of the first layer of latches (4-1) and the second layer of latches (4-2) are both provided with latch lower inclined surfaces (4-4), and the rotating latch (4) is provided with a latch rotating shaft hole (4-5) connected to the rotating shaft (7). The lower inclined surface (3-6) of the tenon of the first layer (3-4) contacts the upper inclined surface (4-3) of the first layer (4-1), the upper inclined surface (3-5) of the tenon of the second layer (3-3) contacts the lower inclined surface (4-4) of the first layer (4-1), and the lower inclined surface (3-6) of the tenon of the second layer (3-3) contacts the upper inclined surface (4-3) of the second layer (4-2).

5. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 4, characterized in that: An upper hole (8-1) is provided at the top of the upper corner piece (8), and a lower hole (8-2) is provided at the bottom of the upper corner piece (8).

6. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 5, characterized in that: The unlocking member comprises an unlocking rod (11), and the unlocking rod (11) comprises an unlocking rod handle (11-2) and an unlocking conical thread head (11-1) arranged at the bottom of the unlocking rod handle (11-2).

7. A highly fault-tolerant self-locking and quick-unlocking connection node for steel structure modular buildings according to claim 6, characterized in that: The connecting piece is a conical unlocking bolt hole (3-2) arranged on the top of the conical head tenon piece (3), and the conical unlocking bolt hole (3-2) matches the unlocking conical thread head (11-1).

8. A highly fault-tolerant self-locking and quick-release connection node for steel structure modular buildings according to claim 6, characterized in that: The connecting member comprises a groove (12) formed at the top of the conical tenon (3); the inner wall at the top of the groove (12) is fitted with a conical unlocking bolt groove (13) matching the unlocking conical threaded head (11-1); the bottom of the conical unlocking bolt groove (13) is connected to an electric telescopic rod (14) arranged in the groove (12); a slide rail (31) is vertically arranged in the groove (12); the top of the slide rail (31) is slidably connected with a slide rod (30) connected to the conical unlocking bolt groove (13); guide rods (15) are arranged on the inner walls on both sides of the groove (12); a stop rod (16) is slidably sleeved on the guide rod (15); the stop rod The bottom of the groove (16) is meshedly connected with a transmission gear (18), and the transmission gear (18) is arranged on a transmission shaft (17) connected to the groove (12). Tooth plates (19) are arranged on both sides of the conical unlocking bolt groove (13), and the sides of the tooth plates (19) on both sides that are away from each other are meshedly connected with a driving gear (20), and the driving gear (20) is arranged on a driving shaft (21) connected to the groove (12), and a driving pulley (22) is arranged on the driving shaft (21), and a transmission double-groove pulley (23) is arranged on the transmission shaft (17), and a driving belt (24) is arranged between the driving pulley (22) and the transmission double-groove pulley (23).

9. A highly fault-tolerant self-locking and quick-release connection node for steel structure modular buildings according to claim 8, characterized in that: Anti-rotation rods (25) are laterally penetrated on both sides of the upper inclined surface (3-5) of the tenon at the top of the first layer of tenons (3-4); a driven gear (26) is meshingly connected to the top of the anti-rotation rod (25); the driven gear (26) is arranged on a driven shaft (27) connected to the groove (12); a driven pulley (28) is arranged on the driven shaft (27); and a driven belt (29) is arranged between the driven pulley (28) and the transmission double-groove pulley (23).

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