A gap plugging device with an elastic liquid storage bag and a low-melting-point metal plate

Abstract

The present invention relates to a gap plugging device having an elastic liquid storage capsule and a low-melting-point metal plate, which mainly includes a first side plate, a second side plate, an elastic liquid storage capsule, a liquid return structure, a first low-melting-point metal plate, a first heating mechanism, a second low-melting-point metal plate and a second heating mechanism. The elastic liquid storage capsule itself has a certain elasticity and strength, and can generate a certain restoring force after being compressed or stretched. When either side of the elastic liquid storage capsule is compressed, the compression amplitude of the compressed part is large, and more magnetorheological fluid can be squeezed out, so that the squeezed magnetorheological fluid flows into the return structure through the connecting structure, and the flow rate is controlled by the magnetic field area to form a damping effect. The gap plugging device of the present invention 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 use its own damping force to prevent the beam-column node from falling out, and can also drive the deformed node to reset.

Description

Technical Field

[0001] The invention relates to the technical field of building structure reinforcement, and in particular to a gap plugging device with an elastic liquid storage bag and 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 gap plugging device with an elastic liquid storage bag and a low-melting-point metal plate 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 beam-column node from falling out.

[0006] To address the above-mentioned problems, the present invention provides a gap plugging device comprising an elastic liquid reservoir and a low-melting-point metal plate, comprising: a first side plate and a second side plate, the first side plate and the second side plate being disposed opposite each other; an elastic liquid reservoir having a first end fixedly connected to the second side plate and a second end adapted to abut against the first side plate, the elastic liquid reservoir being adapted to contain magnetorheological fluid; a plurality of connecting structures formed on the first side plate, the first ends of the connecting structures being evenly distributed around the elastic liquid reservoir and connected to the elastic liquid reservoir; a liquid return structure connected to the second ends of the connecting structures, the volume of the liquid return structure being expandable and contractible; an electromagnetic assembly adapted to adjust the viscosity of the magnetorheological fluid; a first low-melting-point metal plate fixedly disposed on a side of the first side plate away from the second side plate, the side of the first low-melting-point metal plate away from the first side plate being formed with a plurality of protrusions; a first heating mechanism adapted to heat the first low-melting-point metal plate; a second low-melting-point metal plate fixedly disposed on a side of the second side plate away from the first side plate, the side of the second low-melting-point metal plate away from the second side plate being formed with a plurality of protrusions; and a second heating mechanism adapted to heat the second low-melting-point metal plate.

[0007] Furthermore, the elastic liquid storage bag includes:

[0008] a capsule adapted to contain a magnetorheological fluid;

[0009] a first communicating section, the first communicating sections being multiple and radially distributed along the circumference of the capsule, and a first end of the first communicating section being hinged to the capsule;

[0010] The second connecting section has multiple second connecting sections, and the multiple second connecting sections are arranged one-to-one corresponding to the first connecting section. The first end of the second connecting section can be slidably inserted into the second end of the first connecting section, and the second end of the second connecting section is hinged to the connecting structure.

[0011] Furthermore, each connected structure includes:

[0012] a connecting seat formed on a side of the first side plate close to the second side plate and adapted to be hingedly connected to the second end of a second connecting section;

[0013] The liquid guiding pipeline is connected between a connecting seat and the liquid return structure.

[0014] Furthermore, the liquid return structure and the communication structure are arranged in a one-to-one correspondence, including:

[0015] A liquid return tank is formed on the first side plate, and a liquid through hole with a reduced diameter is formed at the connection between the liquid return tank and the communication structure;

[0016] A piston plate is slidably disposed in the liquid return chamber and is adapted to separate a first chamber and a second chamber in the liquid return chamber, wherein the first chamber is connected to the communication structure and the second chamber is connected to the outside;

[0017] An elastic structure is connected between the second chamber and the piston plate.

[0018] Furthermore, the liquid return structure also includes:

[0019] An adjusting rod is inserted into the second chamber of the liquid return tank on one side of the first side plate, and a vent hole is formed on the adjusting rod for connecting the second chamber with the outside world;

[0020] The driving mechanism is connected to the adjusting rod and is suitable for driving the adjusting rod to move toward or away from the first chamber.

[0021] Furthermore, an elastic liquid storage bag limiting groove is formed on one side of the first side plate facing the second side plate.

[0022] Furthermore, the gap plugging device further comprises:

[0023] an acceleration detection module adapted to detect an acceleration value of an environment in which the gap plugging device is located;

[0024] The 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 according to the detection result of the acceleration detection module.

[0025] Furthermore, the gap plugging device further includes at least one set of first tensioning mechanisms, each set of first tensioning mechanisms including two first tensioning mechanisms symmetrically distributed on the first end of the first side plate, first alloy wire holes corresponding to the number of the first tensioning mechanisms being formed in the first side plate, the first ends of the first alloy wire holes being located on a side of the first side plate close to the second side plate and being arranged close to the second end of the first side plate, and the second ends of the first alloy wire holes being located at the first tensioning mechanisms;

[0026] at least two first shape memory alloy wires, each having a first end fixedly connected to the second side plate, the first shape memory alloy wire passing through a first alloy wire hole and a second end connected to the first tensioning mechanism;

[0027] at least one set of second tensioning mechanisms, each set of second tensioning mechanisms including two second tensioning mechanisms symmetrically distributed on the first end of the second side plate, the second side plate being formed with second alloy wire holes corresponding in number to the second tensioning mechanisms, the first ends of the second alloy wire holes being located on a side of the second side plate close to the first side plate and being arranged close to the second end of the second side plate, the second ends of the second alloy wire holes being located at the second tensioning mechanisms;

[0028] At least two second shape memory alloy wires, a first end of each second shape memory alloy wire is fixedly connected to the first side plate, the second shape memory alloy wire passes through a second alloy wire hole and a second end is connected to the second tensioning mechanism.

[0029] Furthermore, a limiting hole extending in the thickness direction of the first side plate and the second side plate is formed at the first end thereof, and the first tensioning mechanism includes:

[0030] A winding post is rotatably inserted into the limiting hole, and a first shape memory alloy wire is wound around the winding post;

[0031] The turbine is fixedly mounted on the winding column;

[0032] a worm gear, which is rotatably disposed on the first side plate and meshes with the turbine, and a handle is formed on the worm gear;

[0033] The second tensioning mechanism includes:

[0034] A winding post is rotatably arranged in the limiting hole, and the second shape memory alloy wire is wound around the winding post;

[0035] A turbine, which is sleeved on a winding column;

[0036] The worm rod is rotatably arranged on the second side plate and meshes with the turbine. A handle is formed on the worm rod.

[0037] Furthermore, the gap plugging device further comprises:

[0038] The induction pen is fixedly mounted on the first side panel;

[0039] The sensing grid is fixedly arranged on the second side plate and abuts against the touch head of the sensing pen.

[0040] The present invention has the following advantages:

[0041] The gap plugging device of the present invention mainly includes a first side plate, a second side plate, an elastic liquid storage capsule, a liquid return structure, 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 opposite each other, and adjust the distance between the first side plate and the second side plate 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, and the elastic liquid storage capsule can be compressed to a certain extent. The gap plugging device is then embedded in the gap, and the gap plugging device is relaxed. When the partial compression of the liquid storage capsule is released, pressure can be applied to the first side plate and the second side plate, so that the first side plate and the second side plate are respectively tightly fitted with the side walls of the gap.

[0042] 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 heat, and the softened first low-melting-point metal plate can be squeezed into the concave and convex surface of the gap side wall. 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 matching the concave and convex surface of the gap side wall are formed on the surface, thereby preventing the gap plugging device from escaping from the beam-column node and increasing the applicability of the gap plugging device to the concave and convex gap side wall surface.

[0043] On this basis, the gap-plugging device of the present invention, comprising an elastic reservoir and a low-melting-point metal plate, is in a compressed state when embedded in the gap. The elastic reservoir itself possesses a certain degree of elasticity and strength, which continuously provides a certain degree of support to the first and second side plates, maintaining the gap-plugging device in a naturally supported state within the gap, oriented toward the first and second side plates. When the node vibrates, the elastic reservoir is compressed and extrudes the magnetorheological fluid. The extruded magnetorheological fluid flows through the connecting structure into the return structure, where its flow rate is controlled as it passes through the magnetic field, creating a damping effect. The greater the compression amplitude at the compressed area, the more magnetorheological fluid is extruded, and the more magnetorheological fluid experiences a stronger damping effect when flowing through the magnetic field. Therefore, the gap-plugging device of the present invention can generate resistance to prevent the beam-column node from dislodging, thereby preventing the node from dislodging. Furthermore, because the elastic reservoir, when compressed, radially extrudes the magnetorheological fluid in different directions, the device's sensitivity to external loads can be increased.

[0044] To sum up, the gap plugging device with an elastic liquid storage bag and a low-melting-point metal plate in the 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 beam-column node from falling out with the help of its own damping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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.

[0046] Figure 1 A perspective view of a gap plugging device having an elastic liquid storage bag and a low-melting-point metal plate according to an embodiment of the present invention is shown;

[0047] Figure 2 An exploded view of a gap plugging device having an elastic liquid storage bag and a low-melting-point metal plate according to an embodiment of the present invention;

[0048] Figure 3 The elastic liquid storage bag of the gap plugging device according to an embodiment of the present invention;

[0049] Figure 4 A first side plate of the gap plugging device according to an embodiment of the present invention;

[0050] Figure 5 is a cross-sectional view of a first side plate of a gap plugging device according to an embodiment of the present invention;

[0051] Figure 6 The first side plate and liquid return structure of the gap plugging device according to an embodiment of the present invention;

[0052] Figure 7 This is an assembly diagram of the liquid return structure of an embodiment of the present invention;

[0053] Figure 8 for Figure 6 An enlarged view of the liquid hole in FIG.

[0054] Figure 9 A first tensioning mechanism of the gap plugging device according to an embodiment of the present invention;

[0055] Figure 10 The second side plate of the gap plugging device according to an embodiment of the present invention;

[0056] Figure 11 This is an exploded view of the sensing pen of the gap plugging device according to an embodiment of the present invention.

[0057] Description of reference numerals:

[0058] 11. First side plate; 111. Connecting seat; 112. Liquid guide pipe; 113. Elastic liquid storage bag limiting groove; 114. Liquid hole; 12. Second side plate; 21. Bag body; 22. First connecting section; 23. Second connecting section; 31. Liquid return tank; 32. Piston plate; 33. Elastic structure; 34. Adjusting rod; 35. Driving mechanism; 41. First tensioning mechanism; 42. Second tensioning mechanism; 421. First alloy wire hole; 422. Second alloy wire hole; 43. A shape memory alloy wire; 45. A second shape memory alloy wire; 46. A winding post; 47. A turbine; 48. A worm gear; 49. A limiting hole; 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 second spring; 614. A spring cavity; 62. A sensing grid; 7. An acceleration detection module. DETAILED DESCRIPTION

[0059] 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.

[0060] 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.

[0061] 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.

[0062] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0063] Figure 1 A three-dimensional view of a gap plugging device having an elastic liquid storage bag and a low-melting-point metal plate according to an embodiment of the present invention is shown. Figure 2 FIG1 is an exploded view of a gap plugging device having an elastic liquid storage bag and a low melting point metal plate according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, this embodiment relates to a gap plugging device having an elastic liquid storage capsule and an induction pen 61, including a first side plate 11, a second side plate 12, an elastic liquid storage capsule, a liquid return structure, an electromagnetic component, 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. Among them, the first side plate 11 and the second side plate 12 are arranged relative to each other. The first end of the elastic liquid storage capsule is fixedly connected to the second side plate 12, and the second end is suitable for abutting against the first side plate 11. The elastic liquid storage capsule is suitable for accommodating magnetorheological fluid. A plurality of connecting structures are formed on the first side plate 11. The first ends of the plurality of connecting structures are evenly distributed around the elastic liquid storage capsule and are connected to the elastic liquid storage capsule.

[0064] The liquid return structure is connected to the second end of the connecting structure, and the volume of the liquid return structure can expand and contract. The electromagnetic component is suitable for adjusting the viscosity of the magnetorheological fluid. The first low-melting-point metal plate 51 is fixedly arranged on the side of the first side plate 11 away from the second side plate 12. The side of the first low-melting-point metal plate 51 away from the first side plate 11 is formed with a plurality of protrusions. The first heating mechanism 53 is suitable for heating the first low-melting-point metal plate 51. The second low-melting-point metal plate 52 is fixedly arranged on the side of the second side plate 12 away from the first side plate 11. The side of the second low-melting-point metal plate 52 away from the second side plate 12 is formed with a plurality of protrusions. The second heating mechanism 54 is suitable for heating the second low-melting-point metal plate 52.

[0065] The first low-melting-point metal plate 51 is fixedly arranged 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. The first heating mechanism 53 is suitable for heating the first low-melting-point metal plate 51. The second low-melting-point metal plate 52 is fixedly arranged 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. The second heating mechanism 54 is suitable for heating the second low-melting-point metal plate 52. The operator can insert the compressed gap plugging device into the gap, and then relax the gap plugging device so that the compression of the elastic liquid storage bag is partially released. Then the first heating mechanism 53 and the second heating mechanism 54 can be energized and generate heat, thereby softening the low-melting-point metal plate due to the heat. Under the expansion pressure of the elastic liquid storage bag, the softened low-melting-point metal plate can be squeezed into the concave and convex surface of the side wall of the gap. Then the heating mesh is controlled to cut off the power, so that the low-melting-point metal plate is hardened, and a conformal protrusion that fits tightly with the side wall of the gap is formed on the surface of the low-melting-point metal plate.

[0066] 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 is formed on the side of the first low-melting-point metal plate 51 proximal to the first side plate 11, which is suitable for accommodating and positioning the heating mesh. This allows the first low-melting-point metal plate 51 to both tightly fit the sidewalls of the slit and accommodate and position the heating mesh.

[0067] 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 fixing groove 55 suitable for accommodating and limiting the heating mesh is formed on the side of the second low-melting-point metal plate 52 close to the second side plate 12. This allows the second low-melting-point metal plate 52 to be used for both tightly fitting with the side wall of the gap and accommodating and limiting the heating mesh. Preferably, in this embodiment, a plurality of protrusions are formed on the sides of the first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 facing away from each other. The protrusions can enter the concave and convex portions of the side wall of the gap after being softened by heat, thereby forming conformal protrusions that match the side wall of the gap.

[0068] The gap plugging device of this embodiment mainly includes a first side plate 11, a second side plate 12, an elastic liquid storage capsule, a liquid return structure, 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 side plate 11 and the second side plate 12 so that the first side plate 11 and the second side plate 12 are opposite to each other, and 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 total thickness of the gap plugging device is slightly smaller than the total width of the gap, and the elastic liquid storage capsule can be compressed to a certain extent. Then, the gap plugging device is embedded in the gap, and the gap plugging device 100 is relaxed. When the compression of the liquid storage capsule is released, pressure can be applied to the first side plate 11 and the second side plate 12 so that the first side plate 11 and the second side plate 12 are tightly fitted to the side walls of the gap respectively.

[0069] The first heating mechanism 53 and the second heating mechanism 54 are controlled to heat, so that the first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 are softened by heat, and the softened first low-melting-point metal plate 51 can be squeezed into the concave and convex surface of the side wall of the gap. Then the first heating mechanism 53 and the second heating mechanism 54 are powered off, and the first low-melting-point metal plate 51 and the second low-melting-point metal plate 52 are hardened, and conformal protrusions matching the concave and convex surface of the side wall of the gap are formed on the surface.

[0070] Therefore, the gap-plugging device comprising the elastic reservoir and the low-melting-point metal plate of this embodiment is in a compressed state when embedded in the gap. The elastic reservoir itself has a certain degree of elasticity and strength, and can continuously provide a certain degree of support force to the first side plate 11 and the second side plate 12, maintaining the gap-plugging device in a natural supporting state in the gap, oriented toward the first side plate 11 and the second side plate 12. When the node vibrates, the elastic reservoir is compressed and squeezes out the magnetorheological fluid. The squeezed magnetorheological fluid flows into the return structure through the connecting structure, and the flow rate is controlled when passing through the magnetic field, forming a damping effect.

[0071] The compression amplitude at the pressure point is large, which can squeeze out more liquid magnetorheological fluid, causing the squeezed magnetorheological fluid to flow into the return structure through the connecting structure. When passing through the magnetic field area, the flow rate is controlled, forming a damping effect. The magnetorheological fluid that ultimately flows into the return structure is subjected to a stronger damping effect when flowing through the magnetic field area. Therefore, the gap plugging device of this embodiment can generate resistance to prevent the beam-column node from falling out, thereby preventing the node from falling out. In addition, because the elastic liquid storage capsule can squeeze the magnetorheological fluid radially in different directions when under pressure, it can increase the sensitivity of the device to external loads.

[0072] In summary, the gap caulking device comprising an elastic liquid storage bladder and a low-melting-point metal plate of this embodiment overcomes the drawback of prior art gap caulking devices, which are prone to falling out of the gap when the gap vibrates. This provides a gap caulking device that can autonomously adjust its opening and closing as the gap opens and closes, preventing the gap caulking device from slipping and, by leveraging its own damping force, preventing the beam-column joint from dislodging. The elastic liquid storage bladder can optionally be configured to include a bladder body 21 and multiple tubes connected to the bladder body 21 and evenly distributed along its circumference, each of which is connected to the liquid return structure.

[0073] Preferably, if Figure 3 As shown, in this embodiment, the elastic liquid storage capsule includes a capsule body 21, a first connecting section 22 and a second connecting section 23. The capsule body 21 is suitable for accommodating magnetorheological fluid. There are multiple first connecting sections 22, which are radially distributed along the circumference of the capsule body 21, and the first end of the first connecting section 22 is hinged to the capsule body 21. There are multiple second connecting sections 23, and the multiple second connecting sections 23 are arranged in a one-to-one correspondence with the first connecting section 22, and can be slidably plugged into the second end of the first connecting section 22, and the second end of the second connecting section 23 is hinged to the connecting structure. Preferably, a sealing structure is also sandwiched between the first connecting section 22 and the second connecting section 23 to prevent the magnetorheological fluid from leaking from the joint between the first connecting section 22 and the second connecting section 23. The sealing structure is preferably, but not limited to, an oil seal or a sealing gasket.

[0074] The first connecting section 22 and the second connecting section 23 form an adjustable length structure, allowing the elastic reservoir sac to slide relative to the first side plate 11. When the sac 21 is compressed, the magnetorheological fluid is squeezed out of the sac 21, with greater pressure at higher angles causing more magnetorheological fluid to be squeezed out. The squeezed magnetorheological fluid passes through the first connecting section 22 and the second connecting section 23, then flows through the guide seat into the liquid conduit 112, and finally into the liquid return structure.

[0075] Preferably, in this embodiment, the communication structure includes a connection seat 111 and a liquid guide line 112. The connection seat 111 is formed on a side of the first side panel 11 near the second side panel 12 and is adapted to be hingedly connected to the second end of the second communication section 23. The liquid guide line 112 is connected between the plurality of connection seats 111 and the liquid return structure.

[0076] The capsule 21 is preferably, but not limited to, a cylindrical, prism, or ellipsoidal shape. Preferably, in this embodiment, the capsule 21 includes a closed capsule 21 top, a capsule 21 bottom, and a corrugated capsule 21 side wall with a capsule 21 opening at the bottom. The capsule 21 top is suitable for fixed connection with the second side plate 12, and the capsule 21 bottom is slidably disposed on the first side plate 11. Preferably, the side wall of the capsule 21 is corrugated, which can bend under pressure without being easily damaged, and can also form a certain restoring force. Preferably, the capsule 21 is made of a material with a certain strength and rigidity, which can support the first side plate 11 and the second side plate 12 and resist the opening and closing of the first side plate 11 and the second side plate 12 during an earthquake.

[0077] like Figure 3 、 4 As shown in Figures 5 and 6, in this embodiment, a hollow cylinder is formed at the first end of the first communication section 22. The circumferential wall of the capsule 21 has openings corresponding in number to the first communication sections 22. The hollow cylinder is clamped in the openings of the capsule 21 and communicates with the capsule 21. A hollow cylinder is formed at the second end of the second communication section 23. The hollow cylinder is clamped in and communicates with the connecting seat 111.

[0078] One or more liquid return structures may be provided. Preferably, in this embodiment, the liquid return structures are provided in a one-to-one correspondence with the communication structures. The liquid return structures may be made of an elastic material with an expandable and contractible volume. When the magnetorheological fluid is squeezed out of the capsule 21, the liquid return structures made of the elastic material can expand and accommodate the magnetorheological fluid, and promote the return of the magnetorheological fluid through its own elastic restoring force.

[0079] Preferably, in this embodiment, Figure 7 and Figure 8As shown, the liquid return structure includes a liquid return chamber 31, a piston plate 32 and an elastic structure 33. The liquid return chamber 31 is formed on the first side plate 11, and a liquid through hole 114 with a reduced diameter is formed at the connection between the liquid return chamber 31 and the connecting structure. The piston plate 32 is slidably arranged in the liquid return chamber 31 and is suitable for separating a first chamber and a second chamber in the liquid return chamber 31. The first chamber is connected to the connecting structure, and the second chamber is connected to the outside. The elastic structure 33 is connected between the second chamber and the piston plate 32. When there is no magnetorheological fluid in the liquid return chamber 31, the elastic structure 33 is in a natural state. When the magnetorheological fluid in the elastic liquid storage bag is pressed into the liquid return chamber 31, the magnetorheological fluid can drive the piston plate 32 to squeeze the elastic structure 33. The elastic structure 33 can use its own elastic restoring force to cause the piston plate 32 to reversely squeeze the magnetorheological fluid to produce a reflux trend, thereby increasing the damping effect. Therefore, the piston plate 32 can make the volume of the return liquid chamber 31 adaptive, and the elastic structure 33 can limit the flow of the magnetorheological fluid. The elastic structure 33 is preferably, but not limited to, a spring or an elastic band.

[0080] The diameter of the liquid through hole 114 is relatively small, which can increase the resistance encountered by the magnetorheological fluid in the process of entering the liquid return tank 31, and further enhance the damping effect of the gap plugging device.

[0081] Preferably, the electromagnetic component is arranged around the liquid hole 114. By adjusting the magnitude of the magnetic field in the liquid hole 114, the viscosity of the magnetorheological fluid at the liquid hole 114 can be quickly changed, thereby quickly adjusting the magnitude of the damping force of the gap plugging device.

[0082] Preferably, in this embodiment, the liquid return structure also includes an adjusting rod 34 and a driving mechanism 35. The adjusting rod 34 is inserted into the second chamber of the liquid return tank 31 on one side of the first side plate 11. An air vent is formed on the adjusting rod 34, which is suitable for connecting the second chamber with the outside world. The driving mechanism 35 is connected to the adjusting rod 34 and is suitable for driving the adjusting rod 34 to move closer to or away from the first chamber. When the node is subjected to force, causing the gap to twist or displace and deform, the operator can start the driving mechanism 35 to move the adjusting rod 34 toward the direction of the piston plate 32, so that the piston plate 32 compresses the magnetorheological fluid and returns it to the elastic liquid storage bag. The elastic liquid storage bag is hydraulically expanded, and the support beam node is reset. Except for the support top reset operation, the adjusting rod 34 is set to be away from the piston plate 32 to ensure that the adjusting rod 34 does not interfere with the working effect of the gap plugging device.

[0083] The drive mechanism 35 can be a linear drive mechanism 35 directly connected to the piston plate 32, or it can be a rotation source. For example, in this embodiment, the drive mechanism 35 is a rotation source, which is fixedly mounted on the side where the adjustment rod 34 is inserted into the first side plate 11. Preferably, the rotation source is a hollow shaft motor. The hollow shaft of the motor is provided with an internal thread, and the adjustment rod 34 is inserted into the internal thread and formed with an external thread that matches the internal thread. The length of the adjustment rod 34 is preferably greater than the depth of the return liquid reservoir 31.

[0084] Preferably, in this embodiment, an elastic liquid storage bag limiting groove 113 is formed on the side of the first side plate 11 facing the second side plate 12, which can restrict the sliding range of the elastic liquid storage bag on the first side plate 11 and prevent the elastic liquid storage bag from detaching from the first side plate 11.

[0085] The magnetic force of the electromagnetic component can be optionally adjusted manually. Preferably, in this embodiment, the gap plugging device also includes an acceleration detection module 7 and a control module. Among them, the acceleration detection module 7 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 7 and the electromagnetic component, and is suitable for controlling the electromagnetic component to adjust the viscosity of the magnetorheological fluid according to the detection result of the acceleration detection module 7. For example, when the acceleration detection module 7 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 ability of the magnetorheological fluid at the liquid hole 114, thereby enhancing the damping capacity that the elastic liquid storage capsule can provide. Therefore, the damping effect of the elastic liquid storage capsule of the gap plugging device of this embodiment can be automatically adjusted, and has good adaptability to the environment.

[0086] The acceleration detection module 7 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 7 includes a first acceleration sensor, a second acceleration sensor, and a third acceleration sensor. The first acceleration sensor 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.

[0087] The second acceleration sensor 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 gap plugging device and is perpendicular to the orientation of the first acceleration sensor. The third acceleration sensor 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 and the second acceleration sensor. For example, in this embodiment, the first acceleration sensor is disposed on the first side plate 11 and is disposed toward the second side plate 12. The first acceleration sensor is disposed on the first side plate 11. The third acceleration sensor is disposed on the first side plate 11.

[0088] Preferably, in order to prevent the first side plate 11 and the second side plate 12 of the gap plugging device from being deflected under the action of external force, resulting in an inability to fit tightly with the gap, in this embodiment, the gap plugging device also includes at least one group of first tensioning mechanisms 41, at least two first shape memory alloy wires 43, at least one group of second tensioning mechanisms 42 and at least two second shape memory alloy wires 45.

[0089] like Figure 9 and Figure 10 As shown, each set of first tensioning mechanisms 41 includes two first tensioning mechanisms 41 symmetrically distributed on the first end of the first side plate 11. A corresponding number of first alloy wire holes 421 are formed in the first side plate 11. The first ends of the first alloy wire holes 421 are located on a side of the first side plate 11 proximal to the second side plate 12 and are disposed at the second end of the first side plate 11. The second ends of the first alloy wire holes 411 extend to the first tensioning mechanisms 41.

[0090] The first end of each first shape memory alloy wire 43 is fixedly connected to the second side plate 12 . The first shape memory alloy wire 43 passes through a first alloy wire hole 421 and the second end is connected to the first tensioning mechanism 41 .

[0091] Each set of second tensioning mechanisms 42 includes two second tensioning mechanisms 42 symmetrically distributed on the first end of the second side plate 12. The second side plate 12 is formed with a corresponding number of second alloy wire holes 422. The first ends of the second alloy wire holes 422 are located on the side of the second side plate 12 proximal to the elastic reservoir and are positioned near the second end of the second side plate 12. The second ends of the second alloy wire holes 422 extend to the second tensioning mechanisms 42.

[0092] At least two second shape memory alloy wires 45 , each second shape memory alloy wire 45 has a first end fixedly connected to the first side plate 11 , passes through a second alloy wire hole 422 and has a second end connected to the second tensioning mechanism 42 .

[0093] Therefore, at least two first shape memory alloy wires 43 and at least two second shape memory alloy wires 45 can cause the first side panel 11 and the second side panel 12 to move closer together, and the elastic liquid storage bag can rely on its own supporting force and damping force to prevent the first side panel 11 and the second side panel 12 from moving closer together. The first side panel 11 and the second side panel 12 can remain relatively stable under the supporting force of the elastic liquid storage bag and the tensioning force of the first shape memory alloy wire 43 and the second shape memory alloy wire 45.

[0094] Furthermore, since the first shape memory alloy wire 43 and the second shape memory alloy wire 45 can be tensioned from the four corners of the first side panel 11 and the second side panel 12 respectively, the tension provided by them can ensure that the first side panel 11 and the second side panel 12 are in a stable state. When the gap of the beam-column node continues to open and close irregularly as the earthquake continues, the first shape memory alloy wire 43 and the second shape memory alloy wire 45 can be stretched and rely on their own tensioning properties to achieve a follow-up adjustment effect during the earthquake, thereby avoiding the formation of gaps between the gap plugging device 100 and the side walls of the gap, and preventing the gap plugging device 100 from falling out of the gap.

[0095] The first tensioning mechanism 41 can be optionally formed at the end of the first side panel 11 along the length direction, or can be optionally formed on the side of the first side panel 11 close to the second side panel 12, that is, one side along the thickness direction, or can be optionally formed inside the first side panel 11 and partially exposed from one side or end of the first side panel 11, where the end refers to one end of the first side panel 11 along the length direction, and the side wall refers to the side of the first side panel 11 along the thickness direction.

[0096] Preferably, in this embodiment, a limiting hole 49 extending along the thickness direction of the first and second side plates 11 and 12 is formed at the first ends thereof. The first tensioning mechanism 41 includes a winding post 46, a turbine 47, and a worm gear 48. The winding post 46 is rotatably inserted into the limiting hole 49. The first shape memory alloy wire 43 is wound around the winding post 46. The turbine 47 is fixedly mounted on the winding post 46. The worm gear 48 is rotatably disposed on the first side plate 11 and meshes with the turbine 47. The worm gear 48 is formed with a handle.

[0097] After the operator places the gap plugging device 100 into the gap of the beam-column node, the operator can rotate the worm by turning the handle, and drive the turbine 47 to rotate, so that the first shape memory alloy wire 43 is wound on the winding column 46, so as to put the first shape memory alloy wire 43 in a tensioned state, ensuring that the first side plate 11 and the second side plate 12 can be reliably constrained at an angle that matches the side wall of the gap.

[0098] The second tensioning mechanism 42 includes a winding post 46, a turbine 47, and a worm shaft 48. The winding post 46 is rotatably inserted into a stopper hole 49, and the second shape memory alloy wire 45 is wound around the winding post 46. The turbine 47 is sleeved around the winding post 46. The worm shaft 48 is rotatably mounted on the second side plate 12 and meshes with the turbine 47. A handle is formed on the worm shaft 48.

[0099] After the operator places the gap plugging device 100 into the gap of the beam-column node, the operator can rotate the worm by turning the handle, and drive the turbine 47 to rotate, so that the second shape memory alloy wire 45 is wound on the winding column 46, so as to put the second shape memory alloy wire 45 in a tensioned state, ensuring that the first side plate 11 and the second side plate 12 can be reliably constrained at an angle that matches the side wall of the gap.

[0100] In order to provide a means for monitoring the node dislodgment, preferably, in this embodiment, the gap plugging device further includes a sensing pen 61 and a sensing grid 62. The sensing pen 61 is fixedly mounted on the first side plate 11. The sensing grid 62 is fixedly mounted on the second side plate 12 and abuts against the touch head of the sensing pen 61.

[0101] In this embodiment, if Figure 11 As shown, the sensing pen 61 includes a fixed section 611, a sensing section 612, and a second spring 613. The fixed section 611 is fixedly mounted on one of the first side plate 11 and the second side plate 12. For example, in this embodiment, the fixed section 611 is fixedly mounted on the first side plate 11. A spring cavity 614 extending along the length of the fixed section 611 and the sensing section 612 is formed in 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 in the spring cavity 614. The touch head is formed at one end of the sensing section 612 away from the fixed section 611. The second spring 613 is disposed in the spring cavity 614 and supported between the fixed section 611 and the sensing section 612. The second spring 613 can support the sensing section 612, which causes a shape change in the gap, resulting in the first side plate 11 and the second side plate 12 moving closer or farther away. The sensing pen 61 can also always be in contact with the sensing grid 62, so that the sensing grid 62 can record the starting and ending positions of the sensing pen 61 after the gap is deformed by force.

[0102] Next, the method for using the gap plugging device according to the embodiment of the present invention is described:

[0103] Step 1: Adjust the first side plate 11 and the second side plate 12 so that they are facing each other, adjust the distance between the first side plate 11 and the second side plate 12 according to the width of the gap, make the total thickness of the gap plugging device slightly smaller than the total width of the gap, and the elastic liquid storage bag is compressed.

[0104] Step 2: embed the compressed device into the gap, loosen the gap plugging device, and partially release the compression of the elastic liquid storage bag, thereby supporting the first side plate 11 and the second side plate 12 to contact the side wall of the gap.

[0105] Step 3: 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 the heat. Under the expansion pressure of the elastic reservoir, 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.

[0106] Step 4: Rotate the handle to tighten the first shape memory alloy wire 43 and the second shape memory alloy wire 45 to a limit that does not cause new deformation of the elastic liquid storage bag.

[0107] 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 undergoes a shape change due to force, 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 node displacement.

[0108] Step 6: When the node is subjected to force, causing the gap to twist or displace, the operator can start the driving mechanism 35 to move the adjusting rod 34 toward the piston plate 32, so that the piston plate 32 compresses the magnetorheological fluid and returns it to the elastic fluid storage bag. The elastic fluid storage bag is hydraulically expanded, and the supporting beam node is reset.

[0109] To sum up, the gap plugging device of this embodiment can overcome the defect that the gap plugging device in the prior art cannot prevent the node from falling out. It can prevent the node from falling out and provide a monitoring means for the node's falling out amount, and can provide a reset means for the deformed node.

[0110] 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 gap plugging device having an elastic liquid storage bag and a low melting point metal plate, characterized in that: include: A first side plate (11) and a second side plate (12), wherein the first side plate (11) and the second side plate (12) are arranged opposite to each other; an elastic liquid storage bag, a first end of which is fixedly connected to the second side plate (12), and a second end of which is adapted to abut against the first side plate (11), the elastic liquid storage bag being adapted to contain magnetorheological fluid, a plurality of connecting structures being formed on the first side plate (11), the first ends of the plurality of connecting structures being evenly distributed around the elastic liquid storage bag and being connected to the elastic liquid storage bag; a liquid return structure connected to the second end of the communication structure, wherein the volume of the liquid return structure can expand and contract; an electromagnetic assembly adapted to adjust the viscosity of the magnetorheological fluid; 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); The second heating mechanism (54) is adapted to heat the second low-melting-point metal plate (52).

2. The gap plugging device according to claim 1, characterized in that The elastic liquid storage bag comprises: a capsule (21) adapted to contain a magnetorheological fluid; a first communicating section (22), wherein the first communicating sections (22) are multiple and radially distributed along the circumference of the capsule (21), and a first end of the first communicating section (22) is hinged to the capsule (21); A second connecting section (23), wherein the second connecting section (23) is multiple, and the multiple second connecting sections (23) are arranged in a one-to-one correspondence with the first connecting section (22), the first end of the second connecting section (23) can be slidably inserted into the second end of the first connecting section (22), and the second end of the second connecting section (23) is hinged to the connecting structure.

3. The gap plugging device according to claim 2, characterized in that Each of the communication structures comprises: a connecting seat (111), formed on a side of the first side plate (11) close to the second side plate (12), and adapted to be hingedly connected to a second end of one of the second connecting sections (23); A liquid guiding pipeline (112), wherein the liquid guiding pipeline (112) is connected between one of the connecting seats (111) and the liquid return structure.

4. The gap plugging device according to claim 3, characterized in that The liquid return structure and the communication structure are arranged in a one-to-one correspondence, including: A liquid return tank (31) is formed on the first side plate (11), and a liquid through hole (114) with a reduced diameter is formed at the connection between the liquid return tank (31) and the communication structure; a piston plate (32) slidably disposed in the liquid return chamber (31) and adapted to separate a first chamber and a second chamber in the liquid return chamber (31), wherein the first chamber is connected to the communication structure and the second chamber is connected to the outside; An elastic structure (33) is connected between the second chamber and the piston plate (32).

5. The gap plugging device according to claim 4, characterized in that The liquid return structure also includes: an adjusting rod (34) inserted into the second chamber of the liquid return chamber (31) on one side of the first side plate (11), and a vent hole formed on the adjusting rod (34) for connecting the second chamber with the outside; A driving mechanism (35) is connected to the adjusting rod (34) and is suitable for driving the adjusting rod (34) to move toward or away from the first chamber.

6. The gap plugging device according to any one of claims 1 to 5, characterized in that: An elastic liquid storage bag limiting groove (113) is formed on one side of the first side plate (11) facing the second side plate (12).

7. The gap plugging device according to any one of claims 1 to 5, characterized in that: The gap plugging device (100) further comprises: an acceleration detection module (7), adapted to detect an acceleration value of an environment in which the gap plugging device (100) is located; A control module is communicatively connected with the acceleration detection module (7) 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 (7).

8. The gap plugging device according to any one of claims 1 to 5, characterized in that: The gap plugging device further comprises at least one group of first tensioning mechanisms (41), each group of first tensioning mechanisms (41) comprising two first tensioning mechanisms (41) symmetrically distributed on the first end of the first side plate (11), first alloy wire holes (421) corresponding in number to the number of the first tensioning mechanisms (41) being formed in the first side plate (11), the first end of the first alloy wire hole (421) being located on a side of the first side plate (11) close to the second side plate (12) and being arranged close to the second end of the first side plate (11), the second end of the first alloy wire hole (421) being located at the first tensioning mechanism (41); at least two first shape memory alloy wires (43), a first end of each first shape memory alloy wire (43) being fixedly connected to the second side plate (12), the first shape memory alloy wire (43) passing through one of the first alloy wire holes (421) and a second end being connected to the first tensioning mechanism (41); At least one group of second tensioning mechanisms (42), each group of second tensioning mechanisms (42) comprising two second tensioning mechanisms (42) symmetrically distributed on the first end of the second side plate (12), the second side plate (12) being formed with second alloy wire holes (422) corresponding in number to the number of the second tensioning mechanisms (42), the first end of the second alloy wire hole (422) being located on a side of the second side plate (12) close to the first side plate (11) and being arranged close to the second end of the second side plate (12), the second end of the second alloy wire hole (422) being located at the second tensioning mechanism (42); At least two second shape memory alloy wires (45), each second shape memory alloy wire (45) having a first end fixedly connected to the first side plate (11), the second shape memory alloy wire (45) passing through a second alloy wire hole (422) and having a second end connected to the second tensioning mechanism (42).

9. The gap plugging device according to claim 8, characterized in that: A limiting hole (49) extending in the thickness direction of the first side plate (11) and the second side plate (12) is formed at the first end thereof, and the first tensioning mechanism (41) comprises: a winding post (46) rotatably inserted into the limiting hole (49), the first shape memory alloy wire (43) being wound around the winding post (46); a turbine (47) fixedly sleeved on the winding post (46); a worm rod (48) rotatably disposed on the first side plate (11) and meshing with the turbine (47), wherein a handle is formed on the worm rod (48); The second tensioning mechanism (42) comprises: a winding post (46) rotatably inserted into the limiting hole (49), the second shape memory alloy wire (45) being wound around the winding post (46); a turbine (47) which is sleeved on the winding post (46); A worm rod (48) is rotatably arranged on the second side plate (12) and meshed with the turbine (47). A handle is formed on the worm rod (48).

10. The gap plugging device according to any one of claims 1 to 5, characterized in that: The gap plugging device (100) further comprises: a sensing pen (61) fixedly mounted on the first side panel (11); The sensing grid (62) is fixedly arranged on the second side plate (12) and abuts against the touch head of the sensing pen (61).

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