An intelligent adjustment device for preventing deformation of H-shaped steel nodes

Abstract

The present invention discloses an intelligent adjustment device for preventing deformation of H-shaped steel nodes, which relates to the technical field of steel structures. The present invention comprises two sets of support groups, which are respectively arranged on both sides of the H-shaped steel web, and the two ends of the support group are clamping mechanisms, which respectively clamp the flanges on the same side of the web. A support mechanism is provided in the middle of the support group, and the clamping mechanisms at both ends are used to apply force to prevent the flanges of the H-shaped steel from deforming. The strain sensor of the support mechanism is attached to the surface of the flange of the H-shaped steel flange segment clamped by the clamping mechanism, and the support member has a structure that moves in a direction perpendicular to the flange. The controller adjusts the rotation of the motor according to the signal of the strain sensor, thereby driving the support member to move and changing the size of the supporting force on the clamping mechanisms at both ends. The two clamping mechanisms on the flange at the same end of the H-shaped steel web are connected by an anti-fall mechanism. The present invention is used to prevent deformation at the connection node of the H-shaped steel, can monitor the stress at the node, and actively adjust according to the change of the external force.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, and in particular to an intelligent anti-deformation adjustment device for H-shaped steel nodes. Background Art

[0002] H-shaped steel is an economical and efficient profile with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". Since the various parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost savings and light structural weight, and has been widely used. H-shaped steel is often used as a load-bearing component. The stress at the connection nodes of the H-shaped steel is poor, and the flanges at the nodes are at risk of deformation. When the nodes are subjected to greater pressure or tension, the flanges at the nodes will be squeezed inward or stretched outward, thereby affecting the stability of the entire steel structure. Therefore, the development of an anti-deformation device for H-shaped steel nodes is a problem that needs to be urgently solved by those skilled in the art.

[0003] The utility model patent with announcement number CN210947127U, titled "A Flange Double Cover Plate Prefabricated Steel Structure," discloses an H-shaped steel body, a connecting and fixing device, an auxiliary fixing plate, and a compression spring. The web and flange plates at the connection of the H-shaped steel body are fully fixed, and the outer side ends of the two groups of H-shaped steel bodies are extended and fixed to prevent the outer ends of the H-shaped steel bodies from moving up and down. When the H-shaped steel body is impacted, the H-shaped steel body moves outward, and the compression springs at the outer ends of the H-shaped steel body and the inner walls of the side plates perform compression and buffering to reduce the impact force. There is a gap between the web and the side plates, so that there is room for deformation after deformation due to the impact force. This patent belongs to an H-shaped steel node connection device, and the installation method is a fixed connection. The impact resistance cannot be adjusted, and the deformation of the H-shaped steel cannot be monitored or actively resisted. Therefore, there is an urgent need for an H-shaped steel node anti-deformation intelligent adjustment device to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent anti-deformation adjustment device for H-beam nodes to solve the problem that the existing H-beam anti-deformation structure cannot monitor and actively resist deformation.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an intelligent anti-deformation adjustment device for an H-beam node, comprising two support groups, one on each side of the H-beam web, the other two ends of the support group being clamping mechanisms for clamping flanges on the same side of the web, and a support mechanism being provided in the middle of the support group. The support clamping mechanisms at both ends are used to apply force to prevent deformation of the H-beam flanges.

[0006] The above-mentioned support mechanism includes a driving motor, a controller, a strain sensor and a support member. The strain sensor is attached to the surface of the flange of the H-shaped steel flange segment clamped by the clamping mechanism, and communicates data with the controller. The support member has a structure that moves in a direction perpendicular to the flange. The controller adjusts the rotation of the motor according to the signal of the strain sensor, thereby driving the support member to move and changing the supporting force on the clamping mechanisms at both ends.

[0007] Preferably, the support mechanism also includes a mounting plate and a drive shaft, the mounting plate is flat on one side close to the web of the H-shaped steel and is in contact with the web surface, and the motor and the controller are fixed on the mounting plate; the drive shaft is processed with at least two sections of external threads with opposite spiral directions, and the support member includes two moving blocks and four connecting rods, the two moving blocks are respectively screwed on the two opposite sections of external threads, one end of the four connecting rods is respectively hinged to the two sides of the two moving blocks close to the flange of the H-shaped steel, and the other ends of the four connecting rods are respectively hinged to the clamping mechanism on the corresponding side.

[0008] In the above preferred scheme, it is further preferred that the motor is a hollow reduction motor, the drive shaft passes through the hollow reduction motor and the middle part is fixedly connected to the motor output end, the parts of the drive shaft located on both sides of the hollow reduction motor are respectively processed with two sections of external threads with opposite spiral directions, the number of support members of the support mechanism is two, and the moving blocks of the two support members are respectively screwed to the two sections of external threads with opposite spiral directions on both sides of the hollow reduction motor.

[0009] Preferably, the clamping mechanism includes a first clamping block, a second clamping block and a plurality of first bolts; the first clamping block and the second clamping block are respectively used to fit the two sides of the flange of the H-shaped steel, and the plurality of first bolts are used to connect and lock the first clamping block and the second clamping block to achieve clamping of the H-shaped steel flange.

[0010] In the above preferred scheme, it is further preferred that a rectangular through hole is provided on the second clamping block, a hollow U-shaped block is fixed at a corresponding position on the first clamping block, a guide block corresponding to the hollow position of the U-shaped block is fixed in the middle of the rectangular through hole, the U-shaped block passes through the rectangular through hole, and the guide block is located in the hollow inner cavity of the U-shaped block; the rectangular through hole and the outer wall of the U-shaped block, the guide block and the hollow inner cavity wall of the U-shaped block are all clearance-fitted; the end panel of the U-shaped block away from the first clamping block is a two-side panel that is inserted into the rectangular through hole and then welded to form a U shape.

[0011] Preferably, the intelligent adjustment device further comprises a plurality of anti-fall mechanisms for connecting two clamping mechanisms on two flanges at one end of the H-shaped steel web.

[0012] In the above preferred scheme, it is further preferred that the anti-fall mechanism includes two pin sleeves, an insertion rod and a second bolt; the two pin sleeves are respectively fixed to the clamping mechanism on both sides of the same end of the H-shaped steel web, the insertion rod is inserted into the two pin sleeves, and one end of the insertion rod has a bent portion, and the other end has a plurality of positioning holes distributed in a straight line, the second bolt passes through the pin sleeves, the corresponding positioning holes and is screwed to the clamping mechanism, and the diameter of the second bolt is smaller than the inner diameter of the positioning hole.

[0013] In any of the above solutions, it is further preferred that both ends of the drive shaft are fixed with a hexagonal head for manually rotating the drive shaft with a tool when the motor fails to work.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The H-beam node anti-deformation intelligent adjustment device adopts two clamping mechanisms to protect the flanges on both sides of the H-beam, and provides supporting force to the two clamping mechanisms through a supporting mechanism. The supporting mechanism has multiple connecting rod structures, which can effectively support the clamping mechanism to prevent the H-beam flange from deforming, thereby ensuring the performance of the H-beam.

[0016] 2. The H-shaped steel node anti-deformation intelligent adjustment device adopts an anti-fall mechanism to prevent the lower clamping mechanism and the supporting mechanism from falling, so as to ensure safety performance. The anti-fall mechanism is loosely connected to avoid the upper and lower clamping mechanisms being tightly connected as one, so as to prevent the deformation of any part of the flange from affecting both the upper and lower clamping mechanisms.

[0017] 3. The H-beam node anti-deformation intelligent adjustment device uses a strain sensor to monitor the deformation of the H-beam flange. In conjunction with a hollow reduction motor, the controller can accurately and intelligently adjust the supporting force of the entire device on the H-beam flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the present invention when it is installed on an H-shaped steel;

[0019] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of the clamping mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the anti-fall mechanism in the present invention.

[0022] In the figure: 1-support mechanism; 11-mounting plate; 12-motor; 13-drive shaft; 14-moving block; 15-hexagonal head; 16-connecting rod; 17-mounting seat; 18-controller; 2-clamping mechanism; 21-first clamping block; 22-second clamping block; 23-first bolt; 24-U-shaped block; 25-guide block; 3-anti-fall mechanism; 31-pin sleeve; 32-insertion rod; 33-bending part; 34-positioning hole; 35-second bolt; 4-strain sensor; 5-H-shaped steel. DETAILED DESCRIPTION

[0023] The present invention provides an intelligent anti-deformation adjustment device for H-beam nodes, comprising two sets of support groups, one set provided on each side of the H-beam web, one set provided with a clamping mechanism at each end of the support group, and the other set provided with a clamping mechanism for clamping the flanges on the same side of the web, and a support mechanism provided in the middle of the support group, the clamping mechanisms at both ends of the support group being used to apply a force to prevent the flanges of the H-beam from deforming.

[0024] The support mechanism includes a driving motor, a controller, a strain sensor and a support member. The strain sensor is attached to the surface of the flange of the H-shaped steel flange segment clamped by the clamping mechanism, and communicates data with the controller. The support member has a structure that moves in a direction perpendicular to the flange. The controller adjusts the rotation of the motor according to the signal of the strain sensor, thereby driving the support member to move and changing the supporting force on the clamping mechanisms at both ends.

[0025] For reference, the structure of the support mechanism can be further designed as follows: it also includes a mounting plate and a drive shaft, the mounting plate is flat on the side close to the web of the H-shaped steel and is in contact with the web surface, and the motor and controller are fixed on the mounting plate; the drive shaft is processed with at least two sections of external threads with opposite spiral directions, and the support member includes two moving blocks and four connecting rods, the two moving blocks are respectively screwed on the two opposite sections of external threads, one end of the four connecting rods is respectively hinged to the two sides of the two moving blocks close to the flange of the H-shaped steel, and the other ends of the four connecting rods are respectively hinged to the clamping mechanism on the corresponding side.

[0026] In a preferred embodiment, the motor is a hollow reduction motor, the drive shaft passes through the hollow reduction motor and is fixedly connected to the motor output end in the middle, the parts of the drive shaft located on both sides of the hollow reduction motor are respectively processed with two sections of external threads with opposite spiral directions, the support mechanism has two support members, and the moving blocks of the two support members are respectively screwed to the two sections of external threads with opposite spiral directions on both sides of the hollow reduction motor.

[0027] For reference, the structure of the clamping mechanism can be further designed as follows: it includes a first clamping block, a second clamping block and a plurality of first bolts; the first clamping block and the second clamping block are respectively used to fit the two sides of the flange of the H-shaped steel, and the plurality of first bolts are used to connect and lock the first clamping block and the second clamping block to achieve clamping of the H-shaped steel flange; the bolts can achieve clamping, but for the sake of safety, a rectangular through hole is further optionally opened on the second clamping block, and a hollow U-shaped block is fixed at the corresponding position on the first clamping block, and a guide block corresponding to the hollow position of the U-shaped block is fixed in the middle of the rectangular through hole, and the U-shaped block passes through the rectangular through hole, and the guide block is located in the hollow inner cavity of the U-shaped block; the rectangular through hole and the outer wall of the U-shaped block, the guide block and the hollow inner cavity wall of the U-shaped block are all clearance-matched; the end panel of the U-shaped block away from the first clamping block is the two side panels inserted into the rectangular through hole and welded to form a U shape.

[0028] When the H-beam is severely deformed and exceeds the limit of the adjustment device, the intelligent adjustment device under the H-beam may fall. In order to avoid safety accidents such as falling from heights, the intelligent adjustment device may also include several anti-fall mechanisms for connecting the two clamping mechanisms located on the two flanges at one end of the H-beam web.

[0029] The structure of the anti-fall mechanism can be further designed as follows: it includes two latch sleeves, an insertion rod and a second bolt; the two latch sleeves are respectively fixed to the clamping mechanism on both sides of the same end of the H-shaped steel web, the insertion rod is inserted into the two latch sleeves, and one end of the insertion rod has a bent portion, and the other end has multiple positioning holes distributed in a straight line. The second bolt passes through the latch sleeve, the corresponding positioning hole and is screwed to the clamping mechanism, and the diameter of the second bolt is smaller than the inner diameter of the positioning hole.

[0030] In addition, to avoid possible motor failure or power supply problems, both ends of the drive shaft can be fixed with hexagonal heads or other easy-to-twist components, which are used to manually rotate the drive shaft with tools when the motor fails to work.

[0031] Example 1

[0032] This embodiment provides a technical solution: an H-shaped steel node anti-deformation intelligent adjustment device, such as Figure 1-2 As shown, it includes a support mechanism 1 and two clamping mechanisms 2; the support mechanism 1 is located between the two clamping mechanisms 2 and is connected to the two clamping mechanisms 2, and the two clamping mechanisms 2 are respectively used to clamp the two side flanges of the H-shaped steel 5; the support mechanism 1 applies a force to the two clamping mechanisms 2, and the force can be inward or outward, and can be adjusted according to actual conditions to prevent the two side flanges of the H-shaped steel 5 from deformation.

[0033] Furthermore, the support mechanism 1 includes a mounting plate 11, a motor 12, a drive shaft 13, a controller 18, and a support member; the motor 12 is fixed to the mounting plate 11, and the side of the mounting plate 11 close to the web of the H-beam 5 is flat. When in use, the flat side of the mounting plate 11 is brought into contact with the web of the H-beam 5, which can restrict the mounting plate 11, that is, prevent the mounting plate 11 from rotating when the motor 12 is running;

[0034] The driving shaft 13 is installed at the output end of the motor 12. The driving shaft 13 is processed with two sections of external threads with opposite spiral directions. The support includes two moving blocks 14 and four connecting rods 16; the two moving blocks 14 are respectively screwed on the two sections of the thread of the driving shaft 13. When the motor 12 is running, the two moving blocks 14 will move in opposite directions; one end of the four connecting rods 16 is respectively hinged to the two sides of the two moving blocks 14, and the other ends of the four connecting rods 16 are respectively hinged to the corresponding clamping mechanisms through mounting seats 17. The mounting seats 17 are fixed to the clamping mechanisms. The two connecting rods 16, the driving shaft 13 and the mounting seats 17 on the same side form an isosceles trapezoidal structure. When the two moving blocks 14 approach each other, the clamping mechanism 2 can be pushed to the side away from the driving shaft 13 through the connecting rod 16; conversely, the clamping mechanism 2 can be pushed to the side close to the driving shaft 13;

[0035] The clamping mechanism 2 is provided with a through hole, in which a strain sensor 4 is mounted on the flange of the H-beam. The number of through holes and strain sensors 4 is set as needed. The strain sensor 4 communicates data with the controller 18. For example, when the strain sensor 4 detects a significant deformation of the flange of the H-beam 5, it sends a signal to the controller 18. The controller 18 controls the operation of the motor 12, which drives the drive shaft 13 to rotate, thereby resisting the deformation of the flange. Alternatively, when the strain sensor 4 detects a minor deformation of the flange of the H-beam 5, the motor 12 drives the drive shaft 13 to rotate by a smaller angle. When a significant deformation occurs, the motor 12 drives the drive shaft 13 to rotate by a larger angle. The specific setting can be adjusted in the program settings of the controller 18 according to actual conditions. In addition, the strain sensor 4 can also serve as an alarm. When the strain sensor 4 detects that the flange deformation exceeds a warning value, the deformation amount is transmitted to the controller, which then controls the sending of a signal to an external control terminal to inform people of the alarm information. The above-mentioned specific program settings, alarm functions, etc. are easy to implement based on the structure provided by the present invention and are relatively mature according to the existing technology, so they are not further described.

[0036] Furthermore, in order to manually adjust the support mechanism 1 when the motor 12 cannot supply power (the output shaft of the motor 12 can rotate on its own when power is lost), a hexagonal head 15 is provided at the end of the drive shaft 13, and the hexagonal head 15 can be clamped with a wrench to rotate the drive shaft 13.

[0037] Example 2

[0038] This embodiment is further optimized based on the above embodiment, and the parts that are the same as the above technical solutions will not be repeated here. Figure 2 As shown, in order to better realize the present invention, the following setting method is particularly adopted: in this embodiment, the number of support members of the support mechanism 1 is two, and the motor 12 is a hollow reduction motor, the drive shaft 13 passes through the output end of the hollow reduction motor and is connected to it, and the drive shafts 13 on both sides of the hollow reduction motor are processed with two sections of external threads with opposite spiral directions, and the moving blocks 14 of the two support members are respectively screwed to the external threads on both sides of the hollow reduction motor.

[0039] When the hollow reduction motor is running, the drive shaft 13 can be driven to rotate, and the connecting rods 16 of the two support members will support the clamping mechanism. The two support members can enhance the compression or tension resistance of the entire device and more effectively prevent flange deformation.

[0040] Example 3

[0041] This embodiment is further optimized based on the above embodiment, and the parts that are the same as the above technical solutions will not be repeated here. Figure 2-3 As shown, in order to better implement the present invention, the following configuration is particularly adopted: in this embodiment, the clamping mechanism 2 includes a first clamping block 21, a second clamping block 22 and a plurality of first bolts 23;

[0042] The lengths of the first clamp block 21 and the second clamp block 22 are consistent, and their lengths can be set as needed. The first clamp block 21 and the second clamp block 22 are respectively used to fit the two sides of the flange of the H-shaped steel 5. Multiple first bolts 23 are used to connect and lock the first clamp block 21 and the second clamp block 22. After the first clamp block 21 and the second clamp block 22 are locked, there is a gap between the first clamp block 21 and the second clamp block 22 that is equivalent to the thickness of the flange of the H-shaped steel 5. This gap is used to clamp the flange of the H-shaped steel 5.

[0043] In order to prevent the clamping mechanism 2 from overturning or twisting, a rectangular through hole is opened on the second clamping block 22, and a U-shaped block 24 is fixed on the first clamping block 21. The U-shaped block 24 passes through the rectangular through hole, and the gap between the rectangular through hole and the outer wall of the U-shaped block 24 is matched. A guide block 25 is fixed on the side wall of the rectangular through hole, and the thickness of the guide block 25 is matched with the inner cavity gap of the U-shaped block 24. The width of the guide block 25 is smaller than the inner cavity width of the U-shaped block 24, and the guide block 25 can have a certain range of movement in the inner cavity of the U-shaped block 24.

[0044] Example 4

[0045] This embodiment is further optimized based on the above embodiment, and the parts that are the same as the above technical solutions will not be repeated here. Figure 1 and Figure 4As shown, in order to better realize the present invention, the following arrangement is particularly adopted: In this embodiment, a support mechanism 1 and two clamping mechanisms 2 (such as Figure 1 As shown), the upper and lower flanges of the H-shaped steel 5 are prevented from deformation, and the upper and lower clamping mechanisms 2 are connected by an anti-fall mechanism 3 to prevent the support mechanism 1 and the two clamping mechanisms 2 located at the lower side from falling.

[0046] The cam 32 is fixed to the outside of the U-shaped block 24 of the two clamping mechanisms 2, and the rod 32 is inserted into the two cam 32. To prevent the rod 32 from falling, the upper end of the rod 32 has a bent portion 33, the width of the bent portion 33 is greater than the width of the rod 32, and the multiple positioning holes 34 are linearly distributed at the lower end of the rod 32. The second bolt 35 passes through the cam 31, the corresponding positioning holes 34 and is screwed to the clamping mechanism 2 to connect the rod 32 to the lower clamping mechanism 2, and the diameter of the second bolt 35 is smaller than the inner diameter of the positioning hole 34, so as to achieve the effect of loose connection, avoid the upper and lower clamping mechanisms being tightly connected as a whole, and prevent deformation of any part of the flange from affecting the upper and lower clamping mechanisms.

[0047] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined by the claims.

[0048] Any matters not described in detail in the present invention are well-known technologies to those skilled in the art.

Claims

1. An intelligent anti-deformation adjustment device for H-beam nodes, characterized by: It includes two sets of support groups, one on each side of the H-beam web. The two ends of the support group are clamping mechanisms, which clamp the flanges on the same side of the web respectively. The middle part of the support group is provided with a support mechanism, and the support clamping mechanisms at both ends are used to apply force to prevent the flanges of the H-beam from deforming. The support mechanism includes a driving motor, a controller, a strain sensor, and a support member. The strain sensor is attached to the surface of the flange of the H-shaped steel flange segment clamped by the clamping mechanism and communicates with the controller. The support member has a structure that moves in a direction perpendicular to the flange. The controller adjusts the rotation of the motor according to the signal from the strain sensor, thereby driving the support member to move and changing the supporting force on the clamping mechanisms at both ends. The clamping mechanism includes a first clamping block, a second clamping block, and a plurality of first bolts; the first clamping block and the second clamping block are respectively used to fit the two sides of the flange of the H-shaped steel, and the plurality of first bolts are used to connect and lock the first clamping block and the second clamping block to achieve clamping of the H-shaped steel flange; The second clamping block is provided with a rectangular through-hole, a hollow U-shaped block is fixed at a corresponding position on the first clamping block, a guide block corresponding to the hollow position of the U-shaped block is fixed in the middle of the rectangular through-hole, the U-shaped block passes through the rectangular through-hole, and the guide block is located in the hollow inner cavity of the U-shaped block; the rectangular through-hole and the outer wall of the U-shaped block, as well as the guide block and the hollow inner cavity wall of the U-shaped block, are all clearance-fitted; the end panel of the U-shaped block away from the first clamping block is welded to the two side panels inserted into the rectangular through-hole to form a U-shape; The intelligent adjustment device also includes a number of anti-fall mechanisms for connecting two clamping mechanisms located on two flanges at one end of the H-shaped steel web; The anti-fall mechanism includes two latch sleeves, an insertion rod and a second bolt; the two latch sleeves are respectively fixed to the clamping mechanisms on both sides of the same end of the H-shaped steel web, the insertion rod is inserted into the two latch sleeves, and one end of the insertion rod has a bent portion, and the other end has multiple positioning holes distributed in a straight line. The second bolt passes through the latch sleeves, the corresponding positioning holes and is screwed to the clamping mechanism, and the diameter of the second bolt is smaller than the inner diameter of the positioning hole.

2. The intelligent anti-deformation adjustment device for H-beam nodes according to claim 1 is characterized in that: The support mechanism also includes a mounting plate and a drive shaft. The mounting plate is flat on one side close to the web of the H-shaped steel and contacts the web surface. The motor and the controller are fixed on the mounting plate. The drive shaft is processed with at least two sections of external threads with opposite spiral directions. The support member includes two moving blocks and four connecting rods. The two moving blocks are respectively screwed on the two opposite external threads. One end of the four connecting rods is respectively hinged to the two sides of the two moving blocks close to the flange of the H-shaped steel, and the other ends of the four connecting rods are respectively hinged to the clamping mechanisms on the corresponding sides.

3. The intelligent anti-deformation adjustment device for H-beam nodes according to claim 2 is characterized in that: The motor is a hollow reduction motor, the drive shaft passes through the hollow reduction motor and is fixedly connected to the motor output end in the middle. The parts of the drive shaft located on both sides of the hollow reduction motor are respectively processed with two sections of external threads with opposite spiral directions. The support mechanism has two support members, and the moving blocks of the two support members are respectively screwed to the two sections of external threads with opposite spiral directions on both sides of the hollow reduction motor.

4. The intelligent anti-deformation adjustment device for H-beam nodes according to claim 3 is characterized in that: Both ends of the drive shaft are fixed with hexagonal heads, which are used to manually rotate the drive shaft with a tool when the motor cannot work.

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