A multi-damping gap plugging device with a low-melting-point metal plate

Abstract

The present invention relates to a multi-damping gap plugging device with a low-melting-point metal plate, which mainly includes a first side plate, a second side plate, a plurality of dampers, a first low-melting-point metal plate, a first heating mechanism, a second low-melting-point metal plate, and a second heating mechanism. When the multi-damping gap plugging device with a low-melting-point metal plate is embedded in the gap, the plurality of dampers are in a compressed state. When the building structure with the gap is forced to vibrate, it can use its own elastic restoring force to adjust its own opening and closing degree as the gap opens and closes, thereby avoiding the formation of a gap between the gap plugging device and the side wall of the gap, causing the gap plugging device to slip. On this basis, the first friction structure, the second friction structure and the damper can all form a damping effect and provide resistance to prevent the node from falling out. Therefore, the multi-damping gap plugging device of the present invention can avoid the gap plugging device from slipping, and then prevent the node from falling out with the help of its own damping force.

Description

Technical Field

[0001] The invention relates to the technical field of building structure reinforcement, and in particular to a multi-damping gap plugging device with a low-melting-point metal plate. Background Art

[0002] In both traditional and modern buildings and structures, gaps between components frequently occur due to manufacturing errors and installation process requirements. For example, in traditional wooden structures, gaps in the top and side walls often exist at beam-column joints. Working with gaps has become a common operating condition for structural components. Over their long service lives, deadweight and seismic loads can increase these gaps. Environmental factors also affect materials, which can also increase gaps at beam-column joints. Large gaps can loosen component connections, leading to horizontal swing or even twisting during earthquakes, significantly compromising the building's seismic resistance.

[0003] The prior art discloses a longitudinal seam caulking device, comprising: a first panel, wherein a plurality of guide seats are provided on the first panel; a second panel, which is arranged opposite to the first panel; a stranded wire, which is wound around the guide seat, wherein the first end of the stranded wire is connected to a stranded wire end seat, and the stranded wire end seat is fixedly connected to the second panel, and the second end of the stranded wire extends out of the space between the second panel and the first panel and is connected to a fastening device, wherein the fastening device can tighten and release the stranded wire; four groups of elastic components are provided, wherein the elastic components are arranged between the first panel and the second panel and are respectively close to the corners of the second panel, and the first end of the elastic component is fixed to the first panel Fixed connection, the second end of the elastic component is fixedly connected to the second panel; the air column is provided with two groups, the connecting line of one group of air columns intersects with the connecting line of the other group of air columns to form a cross, each group of air columns includes two air columns, and the first panel is provided with an air duct and an air groove connected to the first end of the air duct corresponding to each air column, the air column is an elastic hollow cylinder with an opening at the first end and a closed second end, a first limiting groove is provided around the air groove on the first panel, the first end of the air column is embedded in the first limiting groove and the opening is opposite to the air groove, the second end of the air column abuts the second panel, the second end of the air duct is provided with an air nozzle, and the air nozzle is connected to a pressure gauge.

[0004] The above-mentioned existing technology can achieve the function of gap plugging. However, during an earthquake, the gap will open and close repeatedly and irregularly as the earthquake continues, causing the size of the gap to change during the earthquake. The gap plugging device that was originally firmly plugged is very likely to fall off due to the expansion of the gap, resulting in the loss of the gap plugging effect, and it is even more impossible to prevent the beam-column node from falling out. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that the gap plugging device is easy to fall off from the gap when the gap vibrates and cannot prevent the beam-column node from falling out, thereby providing a multi-damping gap plugging device that can autonomously adjust its own opening and closing degree as the gap opens and closes, which can prevent the plugging device from slipping out of the gap and thus prevent the node from falling out.

[0006] In order to solve the above problems, the present invention provides a multi-damping gap plugging device with a low-melting-point metal plate, comprising: a first side plate; a plurality of dampers, the first end of each damper is hinged to the first side plate, and a first friction structure is provided between the first side plate; a second side plate, which is arranged opposite to the first side plate, the second ends of the plurality of dampers are hinged to the second side plate, and a second friction structure is provided between the second side plate; a first low-melting-point metal plate, which is fixedly arranged on a side of the first side plate away from the second side plate, and a plurality of protrusions are formed on the side of the first low-melting-point metal plate away from the first side plate; a first heating mechanism, which is suitable for heating the first low-melting-point metal plate; a second low-melting-point metal plate, which is fixedly arranged on a side of the second side plate away from the first side plate, and a plurality of protrusions are formed on the side of the second low-melting-point metal plate away from the second side plate; a second heating mechanism, which is suitable for heating the second low-melting-point metal plate. Further, the damper comprises:

[0007] a cylinder body carrying a magnetorheological fluid therein;

[0008] The piston is movably inserted in the cylinder body and is divided into a rod chamber and a rodless chamber in the cylinder body. A plurality of communication holes for connecting the rod chamber and the rodless chamber are formed on the piston head;

[0009] The bottom supporting plate is slidably arranged in the rodless cavity and separates the magnetorheological fluid cavity and the air cavity in the rodless cavity. The cylinder body is provided with an air vent corresponding to the air cavity.

[0010] An electromagnetic assembly suitable for adjusting the viscosity of a magnetorheological fluid.

[0011] Furthermore, the electromagnetic assembly is arranged in the piston head.

[0012] Furthermore, a first elastic member connected between one end of the cylinder body and the piston head is formed in the rod cavity, and the first elastic member is in a stretched state; and / or,

[0013] A second elastic member connected between one end of the cylinder body and the bottom supporting plate is formed in the air cavity.

[0014] Furthermore, the multi-damping gap plugging device further comprises:

[0015] an acceleration detection module adapted to detect an acceleration value of an environment in which the gap plugging device is located;

[0016] The control module is in communication with the acceleration detection module and the electromagnetic component, and is adapted to control the electromagnetic component to adjust the viscosity of the magnetorheological fluid according to the detection result of the acceleration detection module.

[0017] Furthermore, the acceleration detection module includes:

[0018] a first acceleration sensor disposed on one of the first side plate and the second side plate and disposed toward the other of the first side plate and the second side plate;

[0019] A second acceleration sensor is disposed on one of the first side plate and the second side plate, and is disposed toward an embedding direction of the multi-damping gap plugging device and perpendicular to a direction of the first acceleration sensor;

[0020] The third acceleration sensor is disposed on one of the first side plate and the second side plate and is perpendicular to the directions of the first acceleration sensor and the second acceleration sensor.

[0021] Furthermore, the first friction structure includes:

[0022] a first friction ball formed at a first end of the damper;

[0023] A first ball joint bowl is formed on a side of the first side plate close to the damper, the first friction ball is confined in the first ball joint bowl, and a damping layer is formed in the first ball joint bowl; and / or,

[0024] The second friction structure includes:

[0025] a second friction ball formed at a second end of the damper;

[0026] The second ball joint bowl is formed on a side of the second side plate close to the damper. The second friction ball is located in the second ball joint bowl. A damping layer is formed in the second ball joint bowl.

[0027] Furthermore, the first heating mechanism includes a heating mesh arranged between the first low-melting-point metal plate and the first side plate, and a heating mesh fixing groove suitable for accommodating and limiting the heating mesh is formed on the first side plate and / or the first low-melting-point metal plate; and / or,

[0028] The second heating mechanism includes a heating mesh arranged between the second low-melting-point metal plate and the second side plate. A heating mesh fixing groove suitable for accommodating and limiting the heating mesh is formed on the second side plate and / or the second low-melting-point metal plate.

[0029] Furthermore, the multi-damping gap plugging device further comprises:

[0030] a sensing pen fixedly disposed on one of the first side plate and the second side plate;

[0031] The sensing grid is fixedly arranged on the other of the first side plate and the second side plate and abuts against the touch head of the sensing pen.

[0032] Furthermore, the sensor pen includes:

[0033] a fixed section, which is fixedly arranged on one of the first side plate and the second side plate,

[0034] An elastic member cavity extending along the length direction of the sensing section, the fixed section and one of the sensing sections is formed therein, the other of the fixed section and the sensing section is slidably inserted in the elastic member cavity, and the touch head is formed at an end of the sensing section away from the fixed section;

[0035] The third elastic member is disposed in the elastic member cavity and supported between the fixing section and the sensing section.

[0036] The present invention has the following advantages:

[0037] The multi-damping gap plugging device of the present invention mainly includes a first side plate, a second side plate, a plurality of dampers, a first low-melting-point metal plate, a first heating mechanism, a second low-melting-point metal plate and a second heating mechanism. The operator can adjust the first side plate and the second side plate so that the first side plate and the second side plate are directly opposite to each other. Then, the distance between the first side plate and the second side plate is adjusted according to the width of the gap so that the total thickness of the gap plugging device is slightly smaller than the total width of the gap. At this time, the damper is in a compressed state due to the adjustment of the distance between the first side plate and the second side plate. Then, the gap plugging device is embedded into the gap, and the gap plugging device is relaxed. The damper can be extended by its own restoring force so that the first side plate and the second side plate are tightly fitted to the side walls of the gap respectively. The first heating mechanism and the second heating mechanism are controlled to heat, so that the first low-melting-point metal plate and the second low-melting-point metal plate are softened by the heat, and the softened first low-melting-point metal plate can be squeezed into the concave-convex surface of the side wall of the gap. Then, the first heating mechanism and the second heating mechanism are powered off, and the first low-melting-point metal plate and the second low-melting-point metal plate are hardened, and conformal protrusions are formed on the surface that match the concave-convex surface of the side wall of the gap. Therefore, when the multi-damping gap plugging device with low-melting-point metal plates of the present invention is embedded in the gap, the multiple dampers are in a compressed state. When the gap vibrates, the dampers can use their own elastic restoring force to adjust their own opening and closing degree as the gap opens and closes, thereby avoiding the formation of a gap between the gap plugging device and the side wall of the gap, which may cause the gap plugging device to slip.

[0038] The first low-melting-point metal plate and the second low-melting-point metal plate can fit tightly with the side walls of the gap, thereby preventing the multi-damping gap plugging device from falling out of the beam-column node, and can enhance the applicability of the multi-damping gap plugging device to gap side walls with different degrees of surface unevenness. On this basis, when the building structure with a gap is forced to vibrate, the damper is affected by external force and expands and contracts, thereby providing resistance along the length direction of the damper to prevent the gap from increasing or shrinking. Relative movement then occurs between the first side plate and the second side plate, so that the damper rotates around the first friction structure and the second friction structure, and at the same time it can expand and contract. Therefore, the first friction structure, the second friction structure and the damper can all form a damping effect and provide resistance to prevent the node from falling out, thereby increasing the impact resistance of the beam-column node, preventing movement between different side walls of the gap, and preventing the node from falling out.

[0039] To sum up, the multi-damping gap plugging device with a low-melting-point metal plate of the present invention can overcome the defect that the gap plugging device in the prior art is easily separated from the gap when the gap vibrates, thereby providing a gap plugging device that can autonomously adjust its own opening and closing degree as the gap opens and closes, which can prevent the gap plugging device from slipping and then prevent the node from falling out with the help of its own damping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A perspective view of a multi-damping gap plugging device having a low-melting-point metal plate according to an embodiment of the present invention is shown;

[0042] Figure 2 An exploded view of a multi-damping gap plugging device according to an embodiment of the present invention;

[0043] Figure 3 A cross-sectional view of a damper of a multi-damping gap plugging device according to an embodiment of the present invention;

[0044] Figure 4 An exploded view of a damper of a multi-damping gap plugging device according to an embodiment of the present invention;

[0045] Figure 5 The invention relates to a sensing pen of a multi-damping gap plugging device according to an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 100. A multi-damping gap plugging device having a low-melting-point metal plate; 11. A first side plate; 12. A second side plate; 3. A damper; 30. A magnetorheological fluid; 31. A cylinder body; 311. An air vent; 32. A piston; 321. A piston head; 322. A connecting hole; 33. A bottom support plate; 34. A first friction ball; 35. A second friction ball; 36. A first ball-jointed bowl; 37. A second ball-jointed bowl; 38. A first elastic member; 39. A second elastic member; 41. A first acceleration sensor; 42. A second acceleration sensor; 43. A third acceleration sensor; 51. A first low-melting-point metal plate; 52. A second low-melting-point metal plate; 53. A first heating mechanism; 54. A second heating mechanism; 55. A heating mesh fixing groove; 61. A sensing pen; 611. A fixing section; 612. A sensing section; 613. A third elastic member; 614. An elastic member cavity; 62. A sensing grid. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0052] Figure 1A perspective view of a multi-damping gap plugging device 100 having a low-melting-point metal plate according to an embodiment of the present invention is shown. Figure 2 FIG. 1 is an exploded view of a multi-damping gap plugging device according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, the present invention relates to a multi-damping gap plugging device 100 having a low-melting-point metal plate, comprising a first side plate 11, a second side plate 12, a first low-melting-point metal plate 51, a first heating mechanism 53, a second low-melting-point metal plate 52, and a second heating mechanism 54. The first end of each damper 3 is hinged to the first side plate 11, and a first friction structure is provided between the first side plate 11 and the second side plate 12. The second side plate 12 is arranged opposite to the first side plate 11. The second ends of the plurality of dampers 3 are hinged to the second side plate 12, and a second friction structure is provided between the second side plate 12 and the second side plate 12.

[0053] The first low-melting-point metal plate 51 is fixedly mounted on a side of the first side plate 11 away from the second side plate 12. A plurality of protrusions are formed on the side of the first low-melting-point metal plate 51 away from the first side plate 11. A first heating mechanism 53 is adapted to heat the first low-melting-point metal plate 51. A second low-melting-point metal plate 52 is fixedly mounted on a side of the second side plate 12 away from the first side plate 11. A plurality of protrusions are formed on the side of the second low-melting-point metal plate 52 away from the second side plate 12. A second heating mechanism 54 is adapted to heat the second low-melting-point metal plate 52.

[0054] The first heating mechanism 53 and the second heating mechanism 54 are preferably, but not limited to, electric heating wires, semiconductor thermostats, or ceramic heaters. For example, in this embodiment, the first heating mechanism 53 includes a heating mesh disposed between the first low-melting-point metal plate 51 and the first side plate 11. A heating mesh fixing groove 55 suitable for accommodating and limiting the heating mesh is formed on the first side plate 11 and / or the first low-melting-point metal plate 51. Preferably, in this embodiment, the heating mesh fixing groove 55 is formed on the side of the first low-melting-point metal plate 51 close to the first side plate 11, so that the first low-melting-point metal plate 51 can be used to closely fit with the side wall of the gap and can also be used to accommodate and limit the heating mesh.

[0055] The second heating mechanism 54 includes a heating mesh disposed between the second low-melting-point metal plate 52 and the second side plate 12. A heating mesh securing groove 55 is formed on the second side plate 12 and / or the second low-melting-point metal plate 52, adapted to accommodate and position the heating mesh. Preferably, in this embodiment, the heating mesh securing groove 55 is formed on the side of the second low-melting-point metal plate 52 proximal to the second side plate 12. This allows the second low-melting-point metal plate 52 to both tightly fit the sidewalls of the slit and accommodate and position the heating mesh.

[0056] The multi-damping gap plugging device of this embodiment primarily comprises a first side plate 11, a second side plate 12, a plurality of dampers 3, a first low-melting-point metal plate 51, a first heating mechanism 53, a second low-melting-point metal plate 52, and a second heating mechanism 54. The operator can adjust the first and second side plates 11, 12 so that they face each other. The operator then adjusts the distance between the first and second side plates 11, 12 according to the width of the gap, so that the total thickness of the gap plugging device is slightly smaller than the total width of the gap. At this point, the dampers 3 are compressed due to the adjusted distance between the first and second side plates 11, 12.

[0057] The multi-damping gap plugging device 100 is then inserted into the gap. The gap plugging device is then released, allowing the damper 3 to extend due to its own restoring force, so that the first side plate 11 and the second side plate 12 are respectively tightly fitted with the side walls of the gap. The first heating mechanism 53 and the second heating mechanism 54 are controlled to heat, causing the first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 to soften due to the heat. The softened first low-melting-point metal plate 51 can be squeezed into the concave and convex surface of the gap side wall. The first heating mechanism 53 and the second heating mechanism 54 are then de-energized, causing the first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 to harden and form conformal protrusions on their surfaces that match the concave and convex surface of the gap side wall. Therefore, when the multi-damping gap plugging device 100 with a low-melting-point metal plate of this embodiment is embedded in the gap, the multiple dampers 3 are in a compressed state. When the gap vibrates, it can use its own elastic restoring force to adjust its own opening and closing degree as the gap opens and closes, thereby avoiding the formation of a gap between the gap plugging device and the side wall of the gap, causing the gap plugging device to slip.

[0058] The first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 can fit tightly with the side walls of the gap, thereby preventing the multi-damping gap plugging device 100 from falling out of the beam-column node, and can enhance the applicability of the multi-damping gap plugging device 100 to gap side walls with different degrees of surface unevenness. On this basis, when the building structure with a gap is forced to vibrate, the damper 3 is affected by external force and expands and contracts, thereby providing resistance along the length direction of the damper 3 to prevent the gap from increasing or decreasing. Relative movement then occurs between the first side plate 11 and the second side plate 12, so that the damper 3 rotates around the first friction structure and the second friction structure, and at the same time can expand and contract itself. Therefore, the first friction structure, the second friction structure and the damper 3 can all form a damping effect and provide resistance to prevent the node from falling out, thereby increasing the impact resistance of the beam-column node, preventing movement between different side walls of the gap, and preventing the node from falling out.

[0059] In summary, the multi-damping gap plugging device 100 with a low-melting-point metal plate of this embodiment can overcome the defect of the gap plugging device in the prior art that it is easy to fall off from the gap when the gap vibrates, thereby providing a gap plugging device that can autonomously adjust its own opening and closing degree as the gap opens and closes, which can prevent the gap plugging device from slipping, and then prevent the node from falling out with its own damping force. The number of dampers 3 is preferably but not limited to three, four, five or more. For example, in this embodiment, the number of dampers 3 is four, and they are evenly distributed in the middle of the multi-damping gap plugging device 100. The four dampers 3 can provide reliable support for the first side plate 11 and the second side plate 12, prevent the first side plate 11 and the second side plate 12 from being deflected by external force, and ensure that the first side plate 11 and the second side plate 12 can always abut against the gap side wall of the beam-column node, and continue to play a shock-absorbing and anti-falling effect.

[0060] like Figure 3 and Figure 4 As shown, in this embodiment, the damper 3 includes a cylinder body 31, a piston 32, a bottom support plate 33 and an electromagnetic assembly. The cylinder body 31 carries a magnetorheological fluid 30. The piston 32 can be movably inserted into the cylinder body 31, and separates a rod cavity and a rodless cavity in the cylinder body 31. A plurality of connecting holes 322 connecting the rod cavity and the rodless cavity are formed on the piston head 321 of the piston 32. The bottom support plate 33 can be slidably set in the rodless cavity, and separates a magnetorheological fluid cavity and an air cavity in the rodless cavity. An air vent 311 is formed on the cylinder body 31 at a position corresponding to the air cavity. The electromagnetic assembly is suitable for adjusting the viscosity of the magnetorheological fluid 30.

[0061] When the damper 3 is compressed, the piston 32 moves toward the rodless cavity. The magnetorheological fluid 30 in the rodless cavity can enter the rod cavity through the connecting hole 322 in the piston head 321, shortening the overall length of the damper 3. As the piston 32 rod enters the rod cavity, the air in the air cavity flows out through the vent hole 311, reducing the volume of the air cavity and making room for the piston 32 rod to enter the cylinder 31.

[0062] When the damper 3 is stretched, the magnetorheological fluid 30 in the rod cavity can flow into the rodless cavity through the connecting hole 322 in the piston head 321, thereby extending the overall length of the damper 3. As the piston rod 32 is withdrawn from the cylinder 31, air enters the air cavity through the air vent 311, increasing the volume of the air cavity and allowing the piston rod 32 to be withdrawn smoothly.

[0063] By using the electromagnetic assembly to adjust the viscosity of the magnetorheological fluid 30, the flow capacity of the magnetorheological fluid 30 at the communication hole 322 can be changed, thereby adjusting the power of the damper 3. For example, when the magnetism increases, the flow capacity of the magnetorheological fluid 30 at the communication hole 322 decreases, and the power of the damper 3 increases.

[0064] The electromagnetic assembly is preferably, but not limited to, disposed on any one or both of the first side plate 11 and the second side plate 12, and may also be connected to one side of the damper 3. Preferably, in this embodiment, the electromagnetic assembly is disposed within the piston head 321, which eliminates the need for the electromagnetic assembly to occupy additional space, and the magnetorheological fluid 30 is always located on both sides of the electromagnetic assembly, ensuring a close distance between the electromagnetic assembly and the magnetorheological fluid 30, thereby more effectively adjusting the viscosity of the magnetorheological fluid 30.

[0065] Preferably, in this embodiment, a first elastic member 38 is formed in the rod cavity and connected between one end of the cylinder body 31 and the piston head 321. The first elastic member 38 is in a stretched state. When the multi-damping gap plugging device 100 is inserted into the gap, the piston rod can extend into the cylinder body 31, causing the first elastic member 38 to be stretched, thereby generating a force that prevents the first side plate 11 and the second side plate 12 from approaching each other, so that the first side plate 11 and the second side plate 12 are respectively tightly fitted with the side walls of the gap.

[0066] When the side wall of the gap undergoes a configuration change, causing the damper 3 to be compressed, the piston 32 rod can move toward the rodless cavity, and the first elastic member 38 can be stretched, thereby providing a force to prevent the first side plate 11 and the second side plate 12 from approaching each other, thereby improving the shock absorption effect of the damper 3. The first elastic member 38 is preferably, but not limited to, an elastic band or a spring. More importantly, after the multi-damping gap plugging device 100 is placed in the gap, stretching the first elastic member 38 can ensure that the first side plate 11 and the second side plate 12 are in a tendency to move away from each other, thereby achieving a tight connection between the first side plate 11 and the second side plate 12 and the side wall of the gap in a static state.

[0067] A second elastic member 39 is formed within the air cavity, connecting between one end of the cylinder 31 and the bottom support plate 33. When the sidewalls of the gap change shape, causing the damper 3 to be compressed, the piston 32 rod can move toward the rodless cavity, and the bottom support plate 33 can be compressed away from the rodless cavity. The second elastic member 39 can be compressed, providing damping to prevent the damper 3 from being compressed, thereby enhancing the damping effect of the damper 3. Furthermore, the provision of the air cavity and the second elastic member 39 effectively reduces the size of the damper itself.

[0068] When the damper 3 is stretched, the piston 32 can move away from the rodless cavity, the volume occupied by the piston 32 rod in the cylinder 31 decreases, the bottom support plate 33 can move toward the rodless cavity, and the second elastic element can be stretched, thereby providing damping to prevent the damper 3 from stretching, thereby improving the shock absorption effect of the damper 3. The second elastic member 39 is preferably, but not limited to, a spring or an elastic band.

[0069] Preferably, in this embodiment, the multi-damping gap plugging device 100 further includes an acceleration detection module and a control module. Among them, the acceleration detection module is suitable for detecting the acceleration value of the environment in which the gap plugging device is located. The control module is communicatively connected with the acceleration detection module and the electromagnetic component, and is suitable for controlling the electromagnetic component to adjust the viscosity of the magnetorheological fluid 30 according to the detection result of the acceleration detection module. For example, when the acceleration detection module detects that the environmental vibration exceeds the acceleration threshold, it can trigger the magnetism of the electromagnetic component to increase, resulting in a weakening of the passing capacity of the magnetorheological fluid 30 at the connecting hole 322, thereby enhancing the power of the damper 3. Therefore, the power of the damper 3 of the multi-damping gap plugging device 100 of this embodiment can be automatically adjusted, and has good adaptability to the environment.

[0070] The acceleration detection module may optionally include an acceleration sensor disposed between the first side panel 11 and the second side panel 12. Preferably, to ensure more comprehensive and accurate data collection from the acceleration sensor, in this embodiment, the acceleration detection module includes a first acceleration sensor 41, a second acceleration sensor 42, and a third acceleration sensor 43. The first acceleration sensor 41 is disposed on one of the first side panel 11 and the second side panel 12, and faces the other of the first side panel 11 and the second side panel 12.

[0071] The second acceleration sensor 42 is disposed on one of the first side plate 11 and the second side plate 12, and is disposed in the embedding direction of the multi-damping gap plugging device and is perpendicular to the orientation of the first acceleration sensor 41. The third acceleration sensor 43 is disposed on one of the first side plate 11 and the second side plate 12 and is perpendicular to the orientation of the first acceleration sensor 41 and the second acceleration sensor 42. For example, in Figure 1 In the illustrated embodiment, the first acceleration sensor 41 is disposed on the first side plate 11 and faces the second side plate 12. The second acceleration sensor 42 is disposed on the first side plate 11. The third acceleration sensor 43 is disposed on the first side plate 11.

[0072] The first friction structure may optionally include a damping hinge formed between the damper 3 and the first side plate 11. Preferably, in this embodiment, the first friction structure includes a first friction ball 34 and a first ball-jointed bowl 36. The first friction ball 34 is formed at the first end of the damper 3. The first ball-jointed bowl 36 is formed on the side of the first side plate 11 proximal to the damper 3, with the first friction ball 34 confined within the first ball-jointed bowl 36. The first friction ball 34 is capable of rotating relative to the first ball-jointed bowl 36, while the contact surface between the first friction ball 34 and the first ball-jointed bowl 36 generates resistance that hinders rotation of the damper 3. A damping layer is formed on at least one of the first friction ball 34 and the first ball-jointed bowl 36 to increase the maximum static friction between the first friction ball 34 and the first ball-jointed bowl 36. The damping layer may be a frosted surface formed on the first friction ball 34 or the first ball-jointed bowl 36, or a non-slip material interposed between the first friction ball 34 and the first ball-jointed bowl 36. Preferably, in this embodiment, the damping layer is a friction and anti-slip material coated on the first ball joint bowl 36 .

[0073] The second friction structure may optionally include a damping hinge formed between the damper 3 and the second side plate 12. Preferably, in this embodiment, the second friction structure includes a second friction ball 35 and a second ball-jointed bowl 37. The second friction ball 35 is formed at the second end of the damper 3. The second ball-jointed bowl 37 is formed on the side of the second side plate 12 proximal to the damper 3, with the second friction ball 35 confined within the second ball-jointed bowl 37. The second friction ball 35 is capable of rotating relative to the second ball-jointed bowl 37, while the contact surface between the second friction ball 35 and the second ball-jointed bowl 37 generates resistance that hinders rotation of the damper 3. Preferably, a damping layer is formed on at least one of the second friction ball 35 and the second ball-jointed bowl 37 to increase the maximum static friction between the second friction ball 35 and the second ball-jointed bowl 37. The damping layer may be a frosted surface formed on the second friction ball 35 or the second ball-jointed bowl 37, or a non-slip material interposed between the second friction ball 35 and the second ball-jointed bowl 37. Preferably, in this embodiment, the damping layer is a friction and anti-slip material coated on the second ball joint bowl 37 .

[0074] Preferably, in this embodiment, in order to provide a means for monitoring the amount of disengagement of the beam-column joint, the multi-damping gap plugging device 100 preferably further includes a sensing pen 61 and a sensing grid 62. The sensing pen 61 is fixedly disposed on one of the first side plate 11 and the second side plate 12. The sensing grid 62 is fixedly disposed on the other of the first side plate 11 and the second side plate 12 and abuts against the touch head of the sensing pen 61. For example, in Figure 1 In the illustrated embodiment, the sensing pen 61 is provided on the first side panel 11 , and the sensing grid 62 is provided on the second side panel 12 .

[0075] In this embodiment, if Figure 5As shown, the sensor pen 61 includes a fixed section 611, a sensing section 612, and a third elastic member 613. The fixed section 611 is fixedly mounted on one of the first side panel 11 and the second side panel 12. An elastic member cavity 614 extending along its length is formed within one of the fixed section 611 and the sensing section 612. The other of the fixed section 611 and the sensing section 612 is slidably inserted within the elastic member cavity 614. The touch head is formed at the end of the sensing section 612 away from the fixed section 611. The third elastic member 613 is disposed within the elastic member cavity 614 and supported between the fixed section 611 and the sensing section 612. The third elastic member 613 supports the sensing section 612, causing the gap to change shape, resulting in the first side panel 11 and the second side panel 12 moving closer or farther apart. This allows the sensor pen 61 to maintain contact with the sensing grid 62, enabling the sensing grid 62 to record the starting and ending positions of the sensor pen 61 after the gap is deformed by force. Preferably, in this embodiment, the fixed section 611 is fixedly mounted on the first side panel 11. An elastic member cavity 614 extending along its length is formed within the fixed section 611, and the sensing section 612 is slidably inserted into the elastic member cavity 614. The third elastic member 613 is preferably, but not limited to, a spring or elastic band.

[0076] Next, the method of using the multi-group gap plugging device with the sensing pen 61 according to the embodiment of the present invention is described:

[0077] Step 1: Adjust the first side panel 11 and the second side panel 12 so that the first side panel 11 and the second side panel 12 face each other.

[0078] Step 2: Adjust the distance between the first side plate 11 and the second side plate 12 according to the width of the gap so that the thickness of the gap filling device is slightly smaller than the total width of the gap. At this time, the damper 3 is compressed to a certain extent.

[0079] Step 3: Embed the compressed device into the gap of the beam-column node, loosen the gap plugging device, and release the compression of the damper 3 so that the panel abuts against the side wall of the gap.

[0080] Step 4: Power is applied to the first and second heating mechanisms 53, 54, causing the first and second low-melting-point metal plates 51, 52 to soften due to heat. Under the diastolic pressure of the damper 3, the softened low-melting-point metal plates are squeezed into the concave and convex surfaces of the slit sidewalls. The first and second heating mechanisms 53, 54 are then de-energized, causing the first and second low-melting-point metal plates 51, 52 to harden, forming conformal protrusions on their surfaces that match the concave and convex surfaces of the slit sidewalls.

[0081] Step 5: Record the current position of the sensing pen 61 on the sensing grid 62 as the initial value for monitoring the deformation of the beam-column node. When the beam-column node is subjected to force and its shape changes, the position of the sensing pen 61 on the sensing grid 62 changes. The displacement trajectory of the sensing pen 61 can be recorded, and the final monitoring value after the displacement can also be recorded. The difference between the final monitoring value and the initial monitoring value is the displacement of the beam-column node with a gap.

[0082] To sum up, the multi-damping gap plugging device 100 with a low-melting-point metal plate in an embodiment of the present invention can overcome the defect that the gap plugging device in the prior art is easily separated from the gap when the gap vibrates, thereby providing a gap plugging device that can autonomously adjust its own opening and closing degree as the gap opens and closes, which can prevent the gap plugging device from slipping, and then prevent the node from falling out with the help of its own damping force, and can also provide a monitoring means for the node falling out amount.

[0083] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A multi-damping gap plugging device with a low melting point metal plate, characterized in that: include: a first side plate (11); a plurality of dampers (3), wherein a first end of each damper (3) is hinged to the first side plate (11), and a first friction structure is provided between the damper and the first side plate (11); a second side plate (12) disposed opposite to the first side plate (11), wherein the second ends of the plurality of dampers (3) are hinged to the second side plate (12), and a second friction structure is disposed between the second side plate (12); a first low-melting-point metal plate (51) fixedly disposed on a side of the first side plate (11) away from the second side plate (12), wherein a plurality of protrusions are formed on the side of the first low-melting-point metal plate (51) away from the first side plate (11); a first heating mechanism (53) adapted to heat the first low-melting-point metal plate (51); a second low-melting-point metal plate (52) fixedly disposed on a side of the second side plate (12) away from the first side plate (11), wherein a plurality of protrusions are formed on the side of the second low-melting-point metal plate (52) away from the second side plate (12); a second heating mechanism (54) adapted to heat the second low-melting-point metal plate (52); The first heating mechanism (53) includes a heating mesh arranged between the first low-melting-point metal plate (51) and the first side plate (11), and a heating mesh fixing groove (55) suitable for accommodating and limiting the heating mesh is formed on the first side plate (11) and / or the first low-melting-point metal plate (51); and / or, The second heating mechanism (54) includes a heating mesh arranged between the second low-melting-point metal plate (52) and the second side plate (12), and a heating mesh fixing groove (55) suitable for accommodating the heating mesh and limiting its position is formed on the second side plate (12) and / or the second low-melting-point metal plate (52).

2. The multi-damping gap plugging device according to claim 1, characterized in that: The damper (3) comprises: a cylinder (31) containing a magnetorheological fluid (30); A piston (32) is movably inserted into the cylinder (31) and separates a rod chamber and a rodless chamber in the cylinder (31). A piston head (321) of the piston (32) is formed with a plurality of communication holes (322) communicating with the rod chamber and the rodless chamber. A bottom supporting plate (33) is slidably disposed in the rodless cavity and separates a magnetorheological fluid cavity and an air cavity in the rodless cavity. An air vent (311) is formed on the cylinder body (31) at a position corresponding to the air cavity. The electromagnetic component is suitable for adjusting the viscosity of the magnetorheological fluid (30).

3. The multi-damping gap plugging device according to claim 2, characterized in that: The electromagnetic assembly is arranged in the piston head (321).

4. The multi-damping gap plugging device according to claim 2, characterized in that: A first elastic member (38) connected between one end of the cylinder (31) and the piston head (321) is formed in the rod cavity, and the first elastic member (38) is in a stretched state; and / or, A second elastic member (39) connected between one end of the cylinder body (31) and the bottom supporting plate (33) is formed in the air cavity.

5. The multi-damping gap plugging device according to claim 2, characterized in that: The multi-damping gap plugging device (100) further comprises: an acceleration detection module, adapted to detect an acceleration value of an environment in which the multi-damping gap plugging device is located; A control module is communicatively connected with the acceleration detection module and the electromagnetic component, and is adapted to control the electromagnetic component to adjust the viscosity of the magnetorheological fluid (30) according to a detection result of the acceleration detection module.

6. The multi-damping gap plugging device according to claim 5, characterized in that: The acceleration detection module includes: a first acceleration sensor (41) disposed on one of the first side plate (11) and the second side plate (12), and disposed toward the other of the first side plate (11) and the second side plate (12); a second acceleration sensor (42), which is arranged on one of the first side plate (11) and the second side plate (12), and is arranged toward the embedding direction of the multi-damping gap plugging device (100) and is perpendicular to the direction of the first acceleration sensor (41); A third acceleration sensor (43) is arranged on one of the first side plate (11) and the second side plate (12), and is perpendicular to the orientation of the first acceleration sensor (41) and the second acceleration sensor (42).

7. The multi-damping gap plugging device according to any one of claims 1 to 6, characterized in that: The first friction structure includes: a first friction ball (34) formed at a first end of the damper (3); a first ball-jointed bowl (36) formed on a side of the first side plate (11) close to the damper (3), the first friction ball (34) being confined within the first ball-jointed bowl (36), a damping layer being formed within the first ball-jointed bowl (36); and / or, The second friction structure includes: a second friction ball (35) formed at a second end of the damper (3); A second ball hinge bowl (37) is formed on a side of the second side plate (12) close to the damper (3), the second friction ball (35) is confined within the second ball hinge bowl (37), and a damping layer is formed within the second ball hinge bowl (37).

8. The multi-damping gap plugging device according to any one of claims 1 to 6, characterized in that: The multi-damping gap plugging device further comprises: a sensing pen (61) fixedly mounted on one of the first side plate (11) and the second side plate (12); The sensing grid (62) is fixedly arranged on the other of the first side plate (11) and the second side plate (12), and abuts against the touch head of the sensing pen (61).

9. The multi-damping gap plugging device according to claim 8, characterized in that: The sensing pen (61) comprises: a fixed section (611) fixedly disposed on one of the first side plate (11) and the second side plate (12), A sensing section (612), wherein one of the fixed section (611) and the sensing section (612) is provided with an elastic member cavity (614) extending along its length direction, the other of the fixed section (611) and the sensing section (612) is slidably inserted into the elastic member cavity (614), and the touch head is formed at one end of the sensing section (612) away from the fixed section (611); A third elastic member (613) is arranged in the elastic member cavity (614) and supported between the fixing section (611) and the sensing section (612).

Images