A steel structure node energy absorption device

Abstract

The present invention belongs to the technical field of building structures, and particularly relates to a steel structure node energy absorption device, comprising an intermediate shaft, a conductive portion slidably connected to the middle portion of the bottom end of the intermediate shaft, connecting sleeves slidably sleeved at both ends of the intermediate shaft, a fixed collar fixedly sleeved at the middle portion of the outer wall of the connecting sleeve, a plurality of external energy absorption portions slidably connected between the two fixed collars, the plurality of external energy absorption portions being equidistantly spaced along the circumference of the fixed collar, a limit action portion being provided within the intermediate shaft, an internal energy absorption portion being provided within the connecting sleeve, the two adjacent ends of the internal energy absorption portions being movable and extending into the intermediate shaft to abut against the limit action portion, a vertically arranged connecting rod being fixedly connected to the bottom of the end of the connecting sleeve away from the intermediate shaft, a horizontally arranged second slide rod being fixedly connected to the bottom of the adjacent side of the two connecting rods, an alarm portion being slidably connected to the adjacent ends of the two second slide rods, the conductive portion corresponding to the alarm portion. This device can protect the flanges of steel columns.

Description

Technical Field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a steel structure node energy absorption device. Background Art

[0002] Steel structure joints are a key element of building structural systems. Generally, structural members are limited by their maximum dimensions for production or delivery, so two or more fixed components connected together are called structural joints. Due to the wide variety of joint types available, specialized joints are sometimes designed to increase structural toughness or reduce internal forces. Steel structure joints are typically located at structural supports or joints. Common connection methods include rolling joints, hinged joints, and rigid joints. Rigid joints are connections that can transmit both vertical and horizontal forces, as well as rotational torque. The forces acting between components in rigid joints can be decomposed into vertical forces, horizontal forces, and bending moments. The key to prefabricated structures lies in effectively connecting the various assembled components. Beam and column joints in buildings are the intersections of beams and columns in different directions. Therefore, joints are the weakest points in the overall building's resistance to external forces, and the damage resistance of the joints determines the overall building's resistance to damage. To protect these joints and improve the load-bearing capacity and stability of steel structure joints, improvements to the traditional steel structure joint structure are necessary.

[0003] Steel columns are the primary components of steel structure joints. Their cross-sections are typically I-shaped, meaning they typically have two opposing flanges. When impacted by external forces, these flanges deform, damaging the structural connection. Therefore, an energy-absorbing device for steel structure joints is needed to address this issue. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel structure node energy absorption device to solve the above problems, so as to protect the flange of the steel column and prevent the flange structure from being deformed due to external impact.

[0005] The lockhole that is formed on the locking sprocket wheel is formed on the top of the locking sprocket wheel, and the locking sprocket wheel is connected with the locking sprocket at the opposite end of the locking sprocket. The locking sprocket wheel is connected with the locking sprocket at the opposite end of the locking sprocket.

[0006] Preferably, a first cavity is provided inside the intermediate shaft, and the extreme action part includes a plurality of second springs, the top ends of the plurality of second springs are fixedly connected to the top wall of the first cavity, and the bottom ends of the plurality of second springs are commonly fixedly connected to a slide, and the slide is in sliding contact with the side wall of the first cavity. Two through holes are provided on the slide, and the through holes correspond one-to-one to the internal energy absorption part, and the bottom end of the slide is in contact with the end of the internal energy absorption part.

[0007] Preferably, a second cavity is opened inside the connecting sleeve, and the internal energy absorption part includes a horizontal sliding column, one end of the horizontal sliding column is fixedly connected to the side wall of the second cavity, and the other end of the horizontal sliding column slides into the intermediate shaft and is fixedly connected to the limit plate, and the limit plate is located in the first cavity, and the top end of the limit plate slides in contact with the bottom end of the slide plate, and the bottom end of the limit plate slides in contact with the bottom wall of the first cavity, and a third spring is sleeved on the outside of the horizontal sliding column, one end of the third spring is fixedly connected to the side wall of the second cavity, and the other end of the third spring is fixedly connected to the end of the intermediate shaft.

[0008] Preferably, the conductive part includes an insertion rod, which slides through a vertical hole opened in the middle of the bottom end of the intermediate shaft, the inner diameter of the vertical hole is larger than the outer diameter of the insertion rod, and the top end of the insertion rod is fixedly connected to a limit block, the limit block is located in the first cavity, the outer diameter of the limit block is larger than the inner diameter of the vertical hole, and the bottom end of the insertion rod is fixedly connected to a conductive sinker, and the conductive sinker corresponds to the alarm part.

[0009] Preferably, the alarm part includes a support block, each of which is provided with an insertion hole, and the second slide rod is slidably inserted into the insertion hole. A central groove is provided in the middle of the top of the support block, and the central groove corresponds to the conductive pendant block. Conductive blocks are fixedly embedded in the two opposite side walls of the central groove. A battery and an alarm are fixedly connected to the top of the support block, and the battery and alarm are respectively located on both sides of the central groove. The battery is electrically connected to one of the conductive blocks, and the alarm is electrically connected to the other conductive block.

[0010] Preferably, the external energy absorbing part includes a connecting plate, both ends of the connecting plate are respectively slidably inserted into the fixing ring, the middle of the bottom end of the connecting plate is fixedly connected to a fixing block, the two opposite side walls of the fixing block are respectively fixedly connected to one end of the first sliding rod, the other end of the first sliding rod is slidably inserted into the fixing ring, the first sliding rod and the connecting plate are parallel to each other, a first spring is sleeved on the outside of the first sliding rod, one end of the first spring is fixedly connected to the side wall of the fixing block, and the other end of the first spring is fixedly connected to the side wall of the fixing ring.

[0011] Preferably, a plurality of first sliding holes and a plurality of second sliding holes are circumferentially formed on the outer edge of the fixing collar, the first sliding rod is slidably inserted into the first sliding hole, and the connecting plate is slidably inserted into the second sliding hole.

[0012] Preferably, the end portion of the outer wall of the intermediate shaft is fixedly connected to a limiting portion, and the limiting portion includes a first limiting ring, the first limiting ring is fixedly connected to the end portion of the outer wall of the intermediate shaft, the outer wall of the first limiting ring is in sliding contact with the inner wall of the second cavity, the end portion of the inner wall of the second cavity is fixedly connected to a second limiting ring, the inner wall of the second limiting ring is in sliding contact with the outer wall of the intermediate shaft, and the first limiting ring and the second limiting ring are arranged correspondingly.

[0013] Preferably, the end portion of the outer side wall of the connecting sleeve is fixedly connected with a magnetic fixing portion, and the magnetic fixing portion includes a magnetic block, and the magnetic block is fixedly connected to the end portion of the outer side wall of the connecting sleeve.

[0014] Compared with the prior art, the present invention has the following advantages and technical effects:

[0015] The internal energy-absorbing part and the external energy-absorbing part provided in the present invention can absorb the deformation energy generated by the steel column flange when it is impacted by external force, and feed back the absorbed deformation energy to the steel column flange after the external force impact ends, so as to achieve the effect of preventing the flange deformation. The extreme action part provided can take action after the external force impact exceeds the maximum range that the internal energy-absorbing part can withstand, and produce a destructive impact on the top of the conductive part, causing the conductive part to fall freely into the alarm part, so that the circuit inside the alarm part is connected, thereby generating an alarm signal to remind the staff to check and replace the impact position of the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the fixing ring structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the skateboard structure of the present invention.

[0021] Among them, 1. intermediate shaft; 2. connecting sleeve; 3. fixing collar; 4. connecting plate; 5. fixing block; 6. first slide bar; 7. first spring; 8. magnetic block; 9. connecting rod; 10. second slide bar; 11. support block; 12. battery; 13. alarm; 14. plug rod; 15. conductive sinker; 16. first cavity; 17. second spring; 18. slide plate; 19. through hole; 20. limit plate; 21. horizontal slide column; 22. third spring; 23. second cavity; 24. first limit ring; 25. second limit ring; 26. conductive block; 27. center groove; 28. first slide hole; 29. second slide hole; 30. vertical hole; 31. limit block; 32. insertion hole; 33. notch. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Reference Figure 1-Figure 4The present invention provides a steel structure node energy absorption device, including an intermediate shaft 1, a conductive part is slidably connected to the middle part of the bottom end of the intermediate shaft 1, and connecting sleeves 2 are slidably sleeved on both ends of the intermediate shaft 1, and a fixed collar 3 is fixedly sleeved on the middle part of the outer wall of the connecting sleeve 2. A plurality of external energy absorption parts are slidably connected between the two fixed collars 3, and the plurality of external energy absorption parts are circumferentially evenly spaced along the fixed collar 3. An extreme action part is provided inside the intermediate shaft 1, and an internal energy absorption part is provided inside the connecting sleeve 2. The ends of the two internal energy absorption parts close to each other are movably extended into the intermediate shaft 1 and abut against the extreme action part. The bottom of the end of the connecting sleeve 2 away from the intermediate shaft 1 is fixedly connected to a vertically arranged connecting rod 9, and the bottom of the side where the two connecting rods 9 are close to each other is fixedly connected to a horizontally arranged second sliding rod 10, and the ends of the two second sliding rods 10 close to each other are slidably connected to an alarm part, and the conductive part corresponds to the alarm part.

[0025] The internal energy absorption part and the external energy absorption part are capable of absorbing the deformation energy generated by the external force impact on the steel column flange, and feeding back the absorbed deformation energy to the steel column flange after the external force impact ends, so as to prevent the flange deformation. The extreme action part is capable of taking action when the external force impact exceeds the maximum range that the internal energy absorption part can withstand, causing a destructive impact on the top of the conductive part, causing the conductive part to fall freely into the alarm part, making the internal circuit of the alarm part conductive, thereby generating an alarm signal to remind the staff to check and replace the impact position of the flange.

[0026] A further optimized solution is provided, in which a first cavity 16 is provided inside the intermediate shaft 1, and the extreme action portion includes a plurality of second springs 17, the top ends of the plurality of second springs 17 are fixedly connected to the top wall of the first cavity 16, and the bottom ends of the plurality of second springs 17 are fixedly connected to a slide plate 18, and the slide plate 18 is in sliding contact with the side wall of the first cavity 16, and two through holes 19 are provided on the slide plate 18, and the through holes 19 correspond one-to-one to the internal energy absorption portion, and the bottom end of the slide plate 18 abuts against the end of the internal energy absorption portion.

[0027] Furthermore, the two through holes 19 are connected to each other at one side away from each other with a notch 33 , and the notch 33 matches the end of the horizontal sliding column 21 .

[0028] In the initial state, the end of the internal energy absorbing part limits the slide plate 18, so that the second spring 17 is in a compressed state. When the external force impact on the flange of the steel column exceeds the bearing limit of the internal energy absorbing part, the two ends of the internal energy absorbing parts move toward each other. When they move to correspond to the upper and lower sides of the through hole 19, the end of the internal energy absorbing part no longer limits the slide plate 18. The second spring 17 extends, driving the slide plate 18 to slide downward quickly, causing a destructive impact on the top of the conductive part.

[0029] To further optimize the solution, a second cavity 23 is opened inside the connecting sleeve 2, and the internal energy absorption part includes a horizontal sliding column 21, one end of the horizontal sliding column 21 is fixedly connected to the side wall of the second cavity 23, and the other end of the horizontal sliding column 21 slides into the intermediate shaft 1 and is fixedly connected to the limit plate 20, the limit plate 20 is located in the first cavity 16, the top end of the limit plate 20 slides against the bottom end of the slide plate 18, and the bottom end of the limit plate 20 slides in contact with the bottom wall of the first cavity 16, and a third spring 22 is sleeved on the outside of the horizontal sliding column 21, one end of the third spring 22 is fixedly connected to the side wall of the second cavity 23, and the other end of the third spring 22 is fixedly connected to the end of the intermediate shaft 1.

[0030] The third spring 22 is in a certain compression state in the initial state. When the steel column flange is impacted by external force, the impact energy is transmitted to the third spring 22 through the connecting sleeve 2. The third spring 22 absorbs the impact energy and continues to shorten. When the external force impact stops, the third spring 22 extends to release the impact energy it has absorbed and feeds the energy back to the steel column flange.

[0031] A further optimized solution is provided, in which the conductive part includes an insert rod 14, which slides through a vertical hole 30 opened in the middle of the bottom end of the intermediate shaft 1, the inner diameter of the vertical hole 30 being larger than the outer diameter of the insert rod 14, and the top end of the insert rod 14 being fixedly connected to a limit block 31, the limit block 31 being located in the first cavity 16, the outer diameter of the limit block 31 being larger than the inner diameter of the vertical hole 30, and the bottom end of the insert rod 14 being fixedly connected to a conductive sinker 15, which corresponds to the alarm part.

[0032] A further optimized solution is provided, in which the alarm part includes a support block 11, each of which is provided with an insertion hole 32, and the second slide bar 10 is slidably inserted into the insertion hole 32. A central groove 27 is provided in the middle of the top of the support block 11, and the central groove 27 corresponds to the conductive pendant 15. Conductive blocks 26 are fixedly embedded in the two opposite side walls of the central groove 27, and a battery 12 and an alarm 13 are fixedly connected to the top of the support block 11. The battery 12 and the alarm 13 are respectively located on both sides of the central groove 27. The battery 12 is electrically connected to one conductive block 26, and the alarm 13 is electrically connected to the other conductive block 26.

[0033] When the external force impact exceeds the bearing limit of the steel column flange side, the impact energy pushes the horizontal sliding column 21 and drives the two limit plates 20 to move closer to each other. When the limit plate 20 moves to be aligned with the through hole 19 above and below, the second spring 17 extends, driving the slide plate 18 to move downward rapidly. When the slide plate 18 moves to the lowest end, it exerts destructive extrusion on the limit block 31. After the limit block 31 is destroyed, the insertion rod 14 and the conductive sinker 15 fall under their own gravity, and the conductive sinker 15 enters the central groove 27, energizing the two conductive blocks 26. After the connection, the battery 12 supplies power to the alarm 13, and the alarm 13 sounds an alarm to remind the staff to check and deal with the position where the steel column flange is impacted by the external force.

[0034] To further optimize the solution, the external energy absorbing part includes a connecting plate 4, both ends of the connecting plate 4 are respectively slidably inserted into the fixed collar 3, the middle part of the bottom end of the connecting plate 4 is fixedly connected to a fixed block 5, the two opposite side walls of the fixed block 5 are respectively fixedly connected to one end of a first slide rod 6, the other end of the first slide rod 6 is slidably inserted into the fixed collar 3, the first slide rod 6 and the connecting plate 4 are parallel to each other, a first spring 7 is sleeved on the outside of the first slide rod 6, one end of the first spring 7 is fixedly connected to the side wall of the fixed block 5, and the other end of the first spring 7 is fixedly connected to the side wall of the fixed collar 3.

[0035] The first spring 7 is in a compressed state in the initial state. After the external force impact acts on the steel column flange, the flange pushes the two connecting sleeves 2 closer to each other. During the approach, the first spring 7 continues to compress to absorb the impact energy. After the external force impact ends, the first spring 7 extends and feeds back the impact energy it absorbs to the steel column flange.

[0036] To further optimize the solution, a plurality of first sliding holes 28 and a plurality of second sliding holes 29 are circumferentially opened on the outer edge of the fixing ring 3 , the first sliding rod 6 slides through the first sliding hole 28 , and the connecting plate 4 slides through the second sliding hole 29 .

[0037] A further optimized solution is that the end of the outer wall of the intermediate shaft 1 is fixedly connected to a limiting part, and the limiting part includes a first limiting ring 24, the first limiting ring 24 is fixedly connected to the end of the outer wall of the intermediate shaft 1, the outer wall of the first limiting ring 24 is in sliding contact with the inner wall of the second cavity 23, the end of the inner wall of the second cavity 23 is fixedly connected to a second limiting ring 25, the inner wall of the second limiting ring 25 is in sliding contact with the outer wall of the intermediate shaft 1, and the first limiting ring 24 and the second limiting ring 25 are arranged correspondingly.

[0038] The first limiting ring 24 and the second limiting ring 25 limit each other to prevent the connecting sleeves 2 at both ends from being separated from the intermediate shaft 1 before the device is installed.

[0039] According to a further optimization solution, the end of the outer wall of the connecting sleeve 2 is fixedly connected with a magnetic fixing part, and the magnetic fixing part includes a magnetic block 8, which is fixedly connected to the end of the outer wall of the connecting sleeve 2.

[0040] The magnetic block 8 can be a switchable permanent magnetic chuck or an electromagnet, which are both existing technologies and will not be described in detail.

[0041] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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 invention.

[0042] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A steel structure node energy absorption device, characterized in that: The invention comprises an intermediate shaft (1), wherein the middle part of the bottom end of the intermediate shaft (1) is slidably connected with a conductive part, and the two ends of the intermediate shaft (1) are respectively slidably sleeved with a connecting sleeve (2), and the middle part of the outer wall of the connecting sleeve (2) is fixedly sleeved with a fixing ring (3), and a plurality of external energy absorbing parts are slidably connected between the two fixing rings (3), and the plurality of external energy absorbing parts are arranged at equal intervals along the circumference of the fixing ring (3); an extreme action part is arranged inside the intermediate shaft (1), and an internal energy absorbing part is arranged inside the connecting sleeve (2); the ends of the two internal energy absorbing parts close to each other are movably extended into the intermediate shaft (1) and abut against the extreme action part; the bottom of the end of the connecting sleeve (2) away from the intermediate shaft (1) is fixedly connected with a vertically arranged connecting rod (9), and the bottom of the side where the two connecting rods (9) are close to each other is fixedly connected with a horizontally arranged second sliding rod (10), and the ends of the two second sliding rods (10) close to each other are slidably connected with an alarm part, and the conductive part corresponds to the alarm part.

2. A steel structure node energy absorption device according to claim 1, characterized in that: A first cavity (16) is provided inside the intermediate shaft (1), and the extreme action portion includes a plurality of second springs (17), the top ends of the plurality of second springs (17) are fixedly connected to the top wall of the first cavity (16), and the bottom ends of the plurality of second springs (17) are fixedly connected to a slide plate (18), and the slide plate (18) is in sliding contact with the side wall of the first cavity (16). Two through holes (19) are provided on the slide plate (18), and the through holes (19) correspond one-to-one to the internal energy absorption portion. The bottom end of the slide plate (18) abuts against the end of the internal energy absorption portion.

3. The steel structure node energy absorption device according to claim 2, characterized in that: A second cavity (23) is provided inside the connecting sleeve (2), and the internal energy absorption part includes a horizontal sliding column (21), one end of the horizontal sliding column (21) is fixedly connected to the side wall of the second cavity (23), and the other end of the horizontal sliding column (21) slides into the intermediate shaft (1) and is fixedly connected to the limit plate (20), and the limit plate (20) is located in the first cavity (16), and the top end of the limit plate (20) is in sliding contact with the bottom end of the slide plate (18), and the bottom end of the limit plate (20) is in sliding contact with the bottom wall of the first cavity (16), and a third spring (22) is sleeved on the outside of the horizontal sliding column (21), one end of the third spring (22) is fixedly connected to the side wall of the second cavity (23), and the other end of the third spring (22) is fixedly connected to the end of the intermediate shaft (1).

4. The steel structure node energy absorption device according to claim 2, characterized in that: The conductive part includes an insertion rod (14), the insertion rod (14) is slidably inserted into a vertical hole (30) opened in the middle of the bottom end of the intermediate shaft (1), the inner diameter of the vertical hole (30) is larger than the outer diameter of the insertion rod (14), the top end of the insertion rod (14) is fixedly connected to a limit block (31), the limit block (31) is located in the first cavity (16), the outer diameter of the limit block (31) is larger than the inner diameter of the vertical hole (30), the bottom end of the insertion rod (14) is fixedly connected to a conductive sinker (15), and the conductive sinker (15) corresponds to the alarm part.

5. The steel structure node energy absorption device according to claim 4, characterized in that: The alarm part includes a support block (11), each of which is provided with an insertion hole (32), and the second slide bar (10) is slidably inserted into the insertion hole (32). A central groove (27) is provided in the middle of the top of the support block (11), and the central groove (27) corresponds to the conductive sinker (15). Conductive blocks (26) are fixedly embedded in the two opposite side walls of the central groove (27). A battery (12) and an alarm (13) are fixedly connected to the top of the support block (11), and the battery (12) and the alarm (13) are respectively located on both sides of the central groove (27). The battery (12) is electrically connected to one of the conductive blocks (26), and the alarm (13) is electrically connected to the other conductive block (26).

6. The steel structure node energy absorption device according to claim 1, characterized in that: The external energy absorbing part comprises a connecting plate (4), both ends of the connecting plate (4) are respectively slidably inserted into the fixing ring (3), a fixing block (5) is fixedly connected to the middle of the bottom end of the connecting plate (4), and two opposite side walls of the fixing block (5) are respectively fixedly connected to one end of a first slide rod (6), the other end of the first slide rod (6) is slidably inserted into the fixing ring (3), the first slide rod (6) and the connecting plate (4) are parallel to each other, a first spring (7) is sleeved on the outside of the first slide rod (6), one end of the first spring (7) is fixedly connected to the side wall of the fixing block (5), and the other end of the first spring (7) is fixedly connected to the side wall of the fixing ring (3).

7. The steel structure node energy absorption device according to claim 6, characterized in that: The outer edge of the fixed collar (3) is circumferentially provided with a plurality of first sliding holes (28) and a plurality of second sliding holes (29); the first sliding rod (6) is slidably inserted into the first sliding hole (28); and the connecting plate (4) is slidably inserted into the second sliding hole (29).

8. The steel structure node energy absorption device according to claim 3, characterized in that: The end of the outer wall of the intermediate shaft (1) is fixedly connected to a limiting portion, and the limiting portion includes a first limiting ring (24), the first limiting ring (24) is fixedly connected to the end of the outer wall of the intermediate shaft (1), the outer wall of the first limiting ring (24) is in sliding contact with the inner wall of the second cavity (23), the end of the inner wall of the second cavity (23) is fixedly connected to a second limiting ring (25), the inner wall of the second limiting ring (25) is in sliding contact with the outer wall of the intermediate shaft (1), and the first limiting ring (24) and the second limiting ring (25) are correspondingly arranged.

9. The steel structure node energy absorption device according to claim 1, characterized in that: The end of the outer wall of the connecting sleeve (2) is fixedly connected to a magnetic fixing portion, and the magnetic fixing portion includes a magnetic block (8), and the magnetic block (8) is fixedly connected to the end of the outer wall of the connecting sleeve (2).

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