A shoulder tenon type beam-column connection structure

Abstract

This utility model discloses a tenon-and-groove beam-column connection structure, comprising a square base, four support columns fixed at the four vertices of the square base, with a transverse gap and a longitudinal gap between adjacent support columns; an upper U-shaped insert and a lower U-shaped insert are arranged in the transverse gap and the longitudinal gap near the square base, the upper U-shaped insert opening downwards and fitting with a clearance in any gap, and the lower U-shaped insert opening upwards and fitting with a clearance in another gap; the upper U-shaped insert and the lower U-shaped insert are engaged; a pin hole is provided through the sidewall of the four support columns away from the square base, the opening direction of the pin holes being consistent, and a lower U-shaped insert plate is arranged in any gap away from the square base, the lower U-shaped insert plate opening upwards. This device solves the problems of traditional connection methods in terms of strength, stability, construction efficiency, and maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of assembled beam and column technology, specifically a tenon-and-groove beam and column connection structure. Background Technology

[0002] As the essence of traditional Chinese wooden architecture, mortise and tenon joints achieve connections through the interlocking of tenons and mortises, offering advantages such as no need for nails, disassembly capability, and a certain degree of earthquake resistance. However, its limitations cannot be ignored. The mortise and tenon structure requires cutting the original material during the connection process to form the tenons and mortises, which undoubtedly compromises the integrity of the material, thus reducing the overall strength of the structure, especially under tensile stress. Furthermore, the anisotropy of wood means that when the tenon direction is inconsistent with the wood grain direction, it is prone to breakage. Simultaneously, mortise and tenon structures are sensitive to changes in environmental temperature and humidity, easily becoming loose or deformed, and require complex maintenance, necessitating repairs by professional technicians, increasing maintenance difficulty and cost.

[0003] Widely used in modern steel structures, welded connections offer advantages such as high joint strength, good sealing, and flexible design. However, they also have significant drawbacks. Localized uneven heating during welding leads to welding stress and deformation, and the uneven performance of welded joints easily causes stress concentration, potentially resulting in fatigue brittle fracture. Furthermore, welded connections lack plastic hinges, making them susceptible to brittle failure under dynamic loads such as earthquakes, severely impacting structural safety. Additionally, welding requires on-site work, demanding high standards of the construction environment and worker skills, and ensuring consistent weld quality is difficult.

[0004] Therefore, a tenon-and-groove beam-column connection structure is provided. This structure, through its innovative design, effectively solves the problems of traditional connection methods in terms of strength, stability, construction efficiency, and maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a tenon-and-groove beam-column connection structure for existing devices, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a shoulder tenon type beam-column connection structure, including a square base, four support columns are fixed at the four vertices of the square base, and a transverse gap and a longitudinal gap are formed between two adjacent support columns;

[0007] An upper U-shaped plug and a lower U-shaped plug are provided in the transverse and longitudinal gaps near the side of the square base. The upper U-shaped plug opens downward and is fitted with a gap in either gap, while the lower U-shaped plug opens upward and is fitted with a gap in the other gap. The upper U-shaped plug and the lower U-shaped plug are engaged.

[0008] A pin hole 1 is provided through the side wall of the four support columns on the side away from the square base. The opening direction of the pin hole 1 is the same. A lower U-shaped insert plate is provided in any gap on the side away from the square base. The lower U-shaped insert plate opens upward. Two pin holes 2 are provided through the side wall of the lower U-shaped insert plate. The two pin holes 2 correspond to the positions of the pin holes 1 on the four support columns respectively.

[0009] The opening of the lower U-shaped insert plate is engaged with the upper U-shaped insert plate, and the opening of the upper U-shaped insert plate faces downward and is opposite to and engaged with the opening of the lower U-shaped insert plate;

[0010] A first crossbeam is installed above the upper U-shaped insert plate. A U-shaped opening 1 is opened on the end face of the first crossbeam, with the U-shaped opening 1 facing upward. A second crossbeam is engaged with one of the U-shaped openings of the first crossbeam. A U-shaped opening 2 is opened on the end face of the second crossbeam, with the U-shaped opening 2 facing the first crossbeam and engaging with it.

[0011] The first crossbeam end face is provided with a fourth pin hole, and the lower U-shaped insert plate end face is provided with a third pin hole. The fourth pin hole and the third pin hole are longitudinally aligned and connected by the pin.

[0012] The present invention further describes that the pin includes a cylinder, a trigger block is slidably connected inside the cylinder, a trigger rod is fixed below the trigger block, a spring is sleeved on the outer diameter of the trigger rod, one end of the spring is fixedly connected to the trigger block, and the other end of the spring is fixedly connected to a limit ring, the limit ring is located outside the trigger rod, and the limit ring is fixedly connected to the inner wall of the cylinder.

[0013] The present invention further describes that a sliding hole is provided on the wall of the cylinder, the sliding hole is located below the limiting ring, and a sliding plate is slidably connected in the sliding hole. The sliding plate includes an outer surface and an inner surface. The outer surface of the sliding plate is in the same direction as the outer wall of the cylinder. The sliding plate is hollow inside. Several through holes and a moving hole are respectively provided on the outer surface and the inner surface of the sliding plate. The through holes and the moving hole communicate between the inside and the outside of the sliding plate.

[0014] The present invention further explains that a second sliding plate is slidably connected inside the first sliding plate, and several limiting cones are fixed on the end face of the second sliding plate near the through hole, the limiting cones corresponding to the position of the through hole.

[0015] This utility model further illustrates that a connecting rod is fixed to the other end face of the sliding plate two. The connecting rod enters the interior of the cylinder through the moving hole. A hinged rod is hinged to a section of the connecting rod away from the sliding plate two. A fixed seat is hinged to the other end of the hinged rod. A rotating ring is fixed to the other section of the fixed seat. The rotating ring is rotatably connected to the outer diameter of the trigger rod.

[0016] The present invention further describes that a limiting block is fixed at the bottom of the cylinder, a limiting hole is fixed inside the limiting block, and several annular limiting grooves are expanded outward from the inner wall of the limiting hole. The inner wall of the limiting hole is also expanded outward from the annular limiting grooves, and the vertical grooves connect the several annular limiting grooves.

[0017] The lower end of the trigger rod enters the interior of the limiting block through the limiting hole. The lower end of the trigger rod is fixed with a limiting rod, which slides within the vertical rod and the annular limiting groove.

[0018] This utility model further illustrates that a buffer spring is provided between the trigger rod and the cylinder, one end of the buffer spring is fixed to the inner wall of the cylinder, and the other end of the buffer spring abuts against the outer diameter of the trigger rod; the diameter of the limiting rod is equal to the width of the annular limiting groove.

[0019] The present invention further illustrates that the first crossbeam and the second crossbeam, the lower U-shaped insert plate and the upper U-shaped insert plate are all perpendicular to each other and correspond to the positions of the transverse gap and the longitudinal gap, respectively.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0021] (1) The self-locking function of the pin is achieved through the coordinated action of components such as a trigger block, trigger rod, spring, limit ring, sliding plate one, sliding plate two, limit cone, connecting rod, hinge rod, fixed seat, rotating ring, limit block, and limit rod. When the pin is inserted into the pin hole, the trigger rod is operated to make the limit cone extend out of the through hole of sliding plate one and lock into the inner wall of the pin hole, thereby preventing the pin from loosening or falling off and ensuring the reliability of the connection. This self-locking function does not require additional fixing devices, simplifying the installation and disassembly process and improving the safety of the connection. At the same time, the annular limit groove and vertical groove set inside the limit block allow the limit rod to slide within them, realizing the adjustability of the pin. In practical applications, the insertion depth and limit position of the pin can be adjusted according to different installation requirements and site conditions, improving the adaptability and flexibility of the structure. In addition, the buffer spring can also absorb and buffer the impact of external forces on the pin to a certain extent, extending the service life of the pin.

[0022] (2) The lower U-shaped insert plate is perpendicular to the upper U-shaped insert plate, corresponding to the positions of the transverse and longitudinal gaps, respectively; the first crossbeam is perpendicular to the second crossbeam, also corresponding to the positions of the transverse and longitudinal gaps, respectively. This vertically intersecting layout ensures that the structure is evenly stressed in both horizontal and vertical directions, fully utilizing the load-bearing capacity of each component and improving the space utilization and mechanical performance of the structure. At the same time, this layout facilitates installation and positioning by construction personnel, improving construction efficiency and quality. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of an embodiment of the present utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the pin in an embodiment of this utility model;

[0027] Figure 4 This is an embodiment of the present utility model. Figure 3 A schematic diagram of the structure of region A;

[0028] Figure 5 This is an embodiment of the present utility model. Figure 3 A schematic diagram of the structure of region B;

[0029] Figure 6 This is an embodiment of the present utility model. Figure 3 A schematic diagram of the C region structure;

[0030] In the diagram: 1. Square base; 101. Upper U-shaped insert; 102. Lower U-shaped insert; 103. Lower U-shaped insert plate; 1031. Pin hole two; 1032. Pin hole three; 104. Upper U-shaped insert plate; 2. Support column; 201. Pin hole one; 3. First beam column; 301. U-shaped opening one; 302. Pin hole four; 4. Second beam column; 401. U-shaped opening two; 5. Pin; 501. Cylinder; 50101. Sliding hole; 5 02. Trigger block; 503. Trigger rod; 504. Spring; 505. Limiting ring; 506. Sliding plate one; 5061. Through hole; 5062. Moving hole; 507. Sliding plate two; 5071. Limiting cone; 508. Connecting rod; 509. Hinge rod; 510. Fixed seat; 511. Rotating ring; 512. Limiting block; 5121. Limiting hole; 5122. Annular limiting groove; 5123. Vertical groove; 513. Limiting rod. Detailed Implementation

[0031] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-6 The present invention provides a technical solution: a shoulder tenon type beam-column connection structure, including a square base 1, four support columns 2 fixed at the four vertices of the square base 1, and a transverse gap and a longitudinal gap formed between two adjacent support columns 2.

[0033] An upper U-shaped plug 101 and a lower U-shaped plug 102 are provided in the transverse and longitudinal gaps near the side of the square base 1. The upper U-shaped plug 101 opens downward and is fitted with a gap in either gap, while the lower U-shaped plug 102 opens upward and is fitted with a gap in the other gap. The upper U-shaped plug 101 and the lower U-shaped plug 102 are engaged.

[0034] The openings of the upper U-shaped plug 101 and the lower U-shaped plug 102 are aligned and engaged, further enhancing the support force and stability of the support column 2.

[0035] A pin hole 201 is provided through the side wall of the four support columns 2 on the side away from the square base 1. The opening direction of the pin hole 201 is the same. A lower U-shaped insert plate 103 is provided in any gap on the side away from the square base 1. The lower U-shaped insert plate 103 opens upward. Two pin holes 1031 are provided through the side wall of the lower U-shaped insert plate 103. The two pin holes 1031 correspond to the positions of the pin holes 201 on the four support columns 2 respectively.

[0036] The lower U-shaped insert plate 103 is inserted into the gap between the four support columns 2. A pin 5 is inserted into the pin hole 201 on one side of the support column 2. The pin 5 extends through the pin hole 2031 into the pin hole 201 of the other support column 2, thereby fixing the lower U-shaped insert plate 103 in the gap between the four support columns 2.

[0037] The opening of the lower U-shaped insert 103 is engaged with the upper U-shaped insert 104, and the opening of the upper U-shaped insert 104 faces downward and is opposite to and engaged with the opening of the lower U-shaped insert 103.

[0038] A first crossbeam 3 is installed above the upper U-shaped insert plate 104. A U-shaped opening 301 is opened on the end face of the first crossbeam 3, and the U-shaped opening 301 faces upward. A second crossbeam 4 is engaged at the U-shaped opening 301 of the first crossbeam 3. A U-shaped opening 401 is opened on the end face of the second crossbeam 4, and the U-shaped opening 401 faces the first crossbeam 3 and is engaged.

[0039] The first crossbeam 3 is provided with a pin hole 302 on its end face, and the lower U-shaped insert plate 103 is provided with a pin hole 1032 on its end face. The pin holes 302 and 1032 are longitudinally aligned and connected by the pin 5.

[0040] The pin 5 includes a cylinder 501, a trigger block 502 is slidably connected inside the cylinder 501, a trigger rod 503 is fixed below the trigger block 502, a spring 504 is sleeved on the outer diameter of the trigger rod 503, one end of the spring 504 is fixedly connected to the trigger block 502, and the other end of the spring 504 is fixedly connected to a limit ring 505, the limit ring 505 is located outside the trigger rod 503, and the limit ring 505 is fixedly connected to the inner wall of the cylinder 501.

[0041] A sliding hole 50101 is provided on the wall of the cylinder 501. The sliding hole 50101 is located below the limiting ring 505. A sliding plate 506 is slidably connected inside the sliding hole 50101. The sliding plate 506 includes an outer surface and an inner surface. The outer surface of the sliding plate 506 is in the same direction as the outer wall of the cylinder 501. The sliding plate 506 is hollow inside. Several through holes 5061 and a moving hole 5062 are respectively provided on the outer surface and the inner surface of the sliding plate 506. The through holes 5061 and the moving hole 5062 communicate between the inside and outside of the sliding plate 506.

[0042] The sliding plate 506 is internally connected to a sliding plate 507. Several limiting cones 5071 are fixed on the end face of the sliding plate 507 near the through hole 5061. The limiting cones 5071 correspond to the positions of the through hole 5061.

[0043] A connecting rod 508 is fixed to the other end face of the sliding plate 507. The connecting rod 508 enters the interior of the cylinder 501 through the moving hole 5062. A hinged rod 509 is hinged to a section of the connecting rod 508 away from the sliding plate 507. A fixed seat 510 is hinged to the other end of the hinged rod 509. A rotating ring 511 is fixed to the other section of the fixed seat 510. The rotating ring 511 is rotatably connected to the outer diameter of the trigger rod 503.

[0044] A limiting block 512 is fixed at the bottom of the cylinder 501. A limiting hole 5121 is fixed inside the limiting block 512. Several annular limiting grooves 5122 are expanded outward from the inner wall of the limiting hole 5121. A vertical groove 5123 is also expanded outward from the inner wall of the limiting hole 5121, and the vertical groove 5123 communicates with the several annular limiting grooves 5122.

[0045] The lower end of the trigger rod 503 enters the interior of the limiting block 512 through the limiting hole 5121. The lower end of the trigger rod 503 is fixed with a limiting rod 513, which slides within the vertical rod and the annular limiting groove 5122.

[0046] It should be noted that a buffer spring is provided between the trigger rod 503 and the cylinder 501. One end of the buffer spring is fixed to the inner wall of the cylinder 501, and the other end of the buffer spring abuts against the outer diameter of the trigger rod 503.

[0047] It should be noted that the diameter of the limiting rod 513 is equal to the width of the annular limiting groove 5122;

[0048] It should be noted that the lower U-shaped insert 103 and the upper U-shaped insert 104 are perpendicular to each other and correspond to the positions of the transverse gap and the longitudinal gap, respectively.

[0049] It should be noted that the first crossbeam 3 and the second crossbeam 4 are perpendicular to each other and correspond to the positions of the transverse gap and the longitudinal gap, respectively.

[0050] Installation steps:

[0051] Prepare the square base: Ensure that the square base 1 is placed horizontally with a flat surface, without obvious unevenness or tilt, so as to provide a stable base for the subsequent installation of the support column 2.

[0052] Install the support columns: Fix the four support columns 2 at the four vertices of the square base 1 respectively by welding. When welding, ensure that the weld is full, free of defects such as pores and slag inclusions, and ensure the connection strength. After the four support columns 2 are installed, they should be parallel to each other and perpendicular to the square base 1. At the same time, they should form a horizontal gap and a vertical gap to reserve space for the installation of other components.

[0053] Choose a suitable gap between the transverse and longitudinal gaps on the side near the square base 1 to install the upper U-shaped plug 101, and the lower U-shaped plug 102 to be installed in the other gap.

[0054] Install the U-shaped insert: With the opening of the upper U-shaped insert 101 facing downwards, slowly insert it into the selected gap, ensuring that it fits snugly with the support columns 2 on both sides of the gap. That is, the upper U-shaped insert 101 should have a certain amount of room to move within the gap, but not be too loose. You can adjust its position by gently shaking or tapping the upper U-shaped insert 101 to achieve the best installation state.

[0055] Install the lower U-shaped plug: Place the lower U-shaped plug 102 with the opening facing upwards into another gap, ensuring that it fits the support columns 2 on both sides of the gap.

[0056] Connect the upper and lower U-shaped inserts: Align the openings of the upper U-shaped insert 101 and the lower U-shaped insert 102 together and slowly push them to engage. During the engagement process, carefully observe the engagement to ensure a tight fit without any loosening or misalignment. After engagement, the upper and lower U-shaped inserts further enhance the support force and stability of the support column 2.

[0057] Determine the insertion position: Select a suitable gap in the gap between the four support columns 2 on the side away from the square base 1 to insert the lower U-shaped insert plate 103.

[0058] Insert the lower U-shaped insert plate: With the opening of the lower U-shaped insert plate 103 facing upwards, slowly insert it into the selected gap. During the insertion process, pay attention to the positional correspondence between the second pin hole 1031 on the side wall of the lower U-shaped insert plate 103 and the first pin hole 201 on the four support columns 2, ensuring that after insertion, the second pin hole 1031 can be accurately aligned with the first pin hole 201.

[0059] Fixing the lower U-shaped insert plate: Using the pin 5, insert it into the pin hole 201 on either side of the support column 2, press the trigger block 502, the trigger block 502 drives the trigger rod 503 to move towards the limiting block 512, at this time the limiting rod 513 is located in the vertical groove 5123, during the movement of the trigger rod 503, the trigger rod 503 drives the connecting rod 508 and the sliding plate 507 to slide relative to the sliding plate 506 through the hinge rod 509, the limiting cone 5071 passes through the through hole 5061 from the... The sliding plate 506 extends outward. When the sliding plate 507 contacts the sliding plate 506, the sliding plate 507 drives the sliding plate 506 to slide until the sliding plate 506 contacts the inner wall of the pin hole 201. At this time, the limiting cone 5071 enters the support column 2. By rotating the trigger block 502, the trigger rod 503 and the limiting rod 513 are driven to rotate. The limiting rod 513 rotates into the annular limiting groove 5122, thereby fixing the position of the trigger rod 503 and the limiting rod 513.

[0060] The pin 5 will pass through the pin hole 1 201 and the pin hole 2 1031 in sequence, and finally extend into the pin hole 1 201 of the support column 2 on the other side.

[0061] Connect the upper U-shaped insert plate: With the opening of the upper U-shaped insert plate 104 facing downwards, align it with the opening of the already installed lower U-shaped insert plate 103, and slowly push it to engage with each other, ensuring that the upper U-shaped insert plate 104 can be stably installed on the lower U-shaped insert plate 103.

[0062] Place the first crossbeam: Place the first crossbeam 3 above the upper U-shaped insert plate 104, ensuring that the end face of the first crossbeam 3 is in close contact with the upper U-shaped insert plate 104.

[0063] Engage the second crossbeam: With the U-shaped opening 401 on the end face of the second crossbeam 4 facing the first crossbeam 3, slowly push the second crossbeam 4 so that its U-shaped opening 401 engages with the U-shaped opening 301 on the end face of the first crossbeam 3.

[0064] Align the pin holes: Align the pin hole 302 on the end face of the first crossbeam 3 with the pin hole 1032 on the end face of the lower U-shaped insert plate 103 in the longitudinal position.

[0065] Inserting the pin for fixation: Using pin 5, insert it from either pin hole 302 or pin hole 1032. Pin 5 will pass through both, connecting the first crossbeam 3 to the lower U-shaped insert plate 103. When inserting pin 5, ensure that pin 5 is fully inserted without any looseness.

[0066] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0067] Finally, it should be noted that 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tenon-and-groove beam-column connection structure, comprising a square base, characterized in that: Four support columns are fixed at the four vertices of the square base, and a horizontal gap and a vertical gap are formed between two adjacent support columns. An upper U-shaped plug and a lower U-shaped plug are provided in the transverse and longitudinal gaps near the side of the square base. The upper U-shaped plug opens downward and is fitted with a gap in either gap, while the lower U-shaped plug opens upward and is fitted with a gap in the other gap. The upper U-shaped plug and the lower U-shaped plug are engaged. A pin hole 1 is provided through the side wall of the four support columns on the side away from the square base. The opening direction of the pin hole 1 is the same. A lower U-shaped insert plate is provided in any gap on the side away from the square base. The lower U-shaped insert plate opens upward. Two pin holes 2 are provided through the side wall of the lower U-shaped insert plate. The two pin holes 2 correspond to the positions of the pin holes 1 on the four support columns respectively. The opening of the lower U-shaped insert plate is engaged with the upper U-shaped insert plate, and the opening of the upper U-shaped insert plate faces downward and is opposite to and engaged with the opening of the lower U-shaped insert plate; A first crossbeam is installed above the upper U-shaped insert plate. A U-shaped opening 1 is opened on the end face of the first crossbeam, with the U-shaped opening 1 facing upward. A second crossbeam is engaged with one of the U-shaped openings of the first crossbeam. A U-shaped opening 2 is opened on the end face of the second crossbeam, with the U-shaped opening 2 facing the first crossbeam and engaging with it. The first crossbeam end face is provided with a fourth pin hole, and the lower U-shaped insert plate end face is provided with a third pin hole. The fourth pin hole and the third pin hole are longitudinally aligned and connected by the pin.

2. The tenon-and-shoulder beam-column connection structure according to claim 1, characterized in that: The pin includes a cylinder, a trigger block is slidably connected inside the cylinder, a trigger rod is fixed below the trigger block, a spring is sleeved on the outer diameter of the trigger rod, one end of the spring is fixedly connected to the trigger block, and the other end of the spring is fixedly connected to a limit ring, the limit ring is located outside the trigger rod, and the limit ring is fixedly connected to the inner wall of the cylinder.

3. The tenon-and-shoulder beam-column connection structure according to claim 2, characterized in that: A sliding hole is provided on the wall of the cylinder, and the sliding hole is located below the limiting ring. A sliding plate is slidably connected in the sliding hole. The sliding plate includes an outer surface and an inner surface. The outer surface of the sliding plate is in the same direction as the outer wall of the cylinder. The sliding plate is hollow inside. Several through holes and a moving hole are respectively provided on the outer surface and the inner surface of the sliding plate. The through holes and the moving hole communicate between the inside and the outside of the sliding plate.

4. The tenon-and-shoulder beam-column connection structure according to claim 3, characterized in that: A second sliding plate is slidably connected inside the first sliding plate. Several limiting cones are fixed on the end face of the second sliding plate near the through hole, and the limiting cones correspond to the positions of the through hole.

5. The tenon-and-shoulder beam-column connection structure according to claim 4, characterized in that: A connecting rod is fixed to the other end face of the sliding plate two. The connecting rod enters the interior of the cylinder through the moving hole. A hinge rod is hinged to a section of the connecting rod away from the sliding plate two. A fixed seat is hinged to the other end of the hinge rod. A rotating ring is fixed to the other section of the fixed seat. The rotating ring is rotatably connected to the outer diameter of the trigger rod.

6. The tenon-and-shoulder beam-column connection structure according to claim 5, characterized in that: A limiting block is fixed at the bottom of the cylinder, and a limiting hole is fixed inside the limiting block. Several annular limiting grooves are expanded outward from the inner wall of the limiting hole. Vertical grooves are also expanded outward from the inner wall of the limiting hole, and the vertical grooves connect the several annular limiting grooves. The lower end of the trigger rod enters the interior of the limiting block through the limiting hole. The lower end of the trigger rod is fixed with a limiting rod, which slides within the vertical rod and the annular limiting groove.

7. A tenon-and-shoulder beam-column connection structure according to claim 6, characterized in that: A buffer spring is provided between the trigger rod and the cylinder. One end of the buffer spring is fixed to the inner wall of the cylinder, and the other end of the buffer spring abuts against the outer diameter of the trigger rod. The diameter of the limiting rod is equal to the width of the annular limiting groove.

8. A tenon-and-shoulder beam-column connection structure according to claim 7, characterized in that: The first crossbeam and the second crossbeam, the lower U-shaped insert and the upper U-shaped insert are all perpendicular to each other and correspond to the positions of the transverse gap and the longitudinal gap, respectively.

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