A gap plugging device with a low melting point metal plate

Abstract

The present invention relates to a gap plugging device having a low-melting-point metal plate, wherein the gap plugging device includes a first side plate, a second side plate, a damper, a first slider, a second slider, a first low-melting-point metal plate, a first heating mechanism, a second low-melting-point metal plate, and a second heating mechanism. When a configuration change occurs at a node, the damper can be extended and contracted by an external force, thereby providing resistance along the length direction of the damper. Relative movement then occurs between the first side plate and the second side plate, so that the damper can rotate relative to the first slider and the second slider, the first slider and the first side plate move relative to each other, and the second slider moves relative to each other relative to the second side plate. The gap plugging device of an embodiment of the present invention 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 node with the gap vibrates. It can prevent the gap plugging device from slipping, and further prevent the node from slipping through its own damping force.

Description

Technical Field

[0001] The invention relates to the technical field of building structure reinforcement, and in particular to a 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, on which a plurality of guide seats are provided; a second panel, which is arranged opposite to the first panel; a stranded wire, which is wound around the guide seat, a first end of the stranded wire connected to a stranded wire end seat, which is fixedly connected to the second panel, a second end of the stranded wire extending out of a space between the second panel and the first panel and connected to a fastening device, which can tighten and release the stranded wire; four sets of elastic components, which are arranged between the first panel and the second panel and are respectively close to the corners of the second panel, and the first ends of the elastic components are connected to the first panel. Fixedly connected, 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 channel and an air groove connected to the first end of the air channel 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 channel 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 easily detached from the gap when the node with the gap vibrates, and cannot prevent the beam-column node from falling out, 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 plugging device from slipping out of the gap and thus prevent the beam-column node from falling out.

[0006] In order to solve the above problems, the present invention provides a gap plugging device with 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 are arranged opposite to each other, and an accommodating groove is formed on the opposite surfaces, and the accommodating groove is sequentially formed with a first groove section and a second groove section along its depth direction; a damper, which is arranged between the first side plate and the second side plate and is suitable for providing resistance along its length direction; a first slider, which is suitable for sliding in the second groove section of the first side plate, the first end of the damper passes through the first groove section of the accommodating groove and is hinged to the first slider, the area of the first slider is larger than the area of the first groove section, a first friction structure is provided between the damper and the first slider, and a second friction structure is provided between the first slider and the first side plate; the second slider is suitable for Sliding in the second groove section of the second side plate, the second end of the damper passes through the first groove section of the second side plate and is hinged to the second slider, the area of the second slider is larger than the area of the first groove section, a third friction structure is provided between the damper and the second slider, and a fourth friction structure is provided between the second slider and the second side plate; a first low-melting-point metal plate is fixedly provided 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 is suitable for heating the first low-melting-point metal plate; a second low-melting-point metal plate is fixedly provided 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 is suitable for heating the second low-melting-point metal plate.

[0007] Furthermore, the first side plate includes a first base plate and a first friction plate detachably connected to the first base plate on a side of the first base plate away from the damper, and the accommodating groove is formed between the first base plate and the first friction plate; and / or,

[0008] The second side plate includes a second base plate and a second friction plate detachably connected to the second base plate at a side of the second base plate away from the damper, and the accommodating groove is formed between the second base plate and the second friction plate.

[0009] Furthermore, the first friction structure includes:

[0010] a first friction ball formed at a first end of the damper;

[0011] A first ball joint bowl is formed on a side of the first slider close to the damper, and the first friction ball is confined in the first ball joint bowl; and / or,

[0012] The third friction structure includes:

[0013] a second friction ball formed at a second end of the damper;

[0014] The second ball joint bowl is formed on a side of the second sliding block close to the damper, and the second friction ball is confined in the second ball joint bowl.

[0015] Furthermore, the damper comprises:

[0016] The first rod section is formed with a guide groove extending along the length direction thereof;

[0017] The second rod section is slidably arranged in the guide groove;

[0018] a fifth friction structure formed in the guide groove and sandwiched between the first section rod and the second section rod;

[0019] The first spring is located in the guide groove and has two ends respectively abutting against the first section rod and the second section rod.

[0020] Furthermore, the gap plugging device further comprises:

[0021] 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, the first side plate being formed with first alloy wire holes corresponding in number to the first tensioning mechanisms, the first ends of the first alloy wire holes being located on a side of the first side plate proximal to the second side plate and disposed at the second end of the first side plate, the second ends of the first alloy wire holes extending to the first tensioning mechanisms;

[0022] 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;

[0023] 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 proximal to the damper and disposed proximal to the second end of the second side plate, the second ends of the second alloy wire holes extending to the second tensioning mechanisms;

[0024] 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.

[0025] 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:

[0026] A winding post is rotatably inserted into the limiting hole, and a first shape memory alloy wire is wound around the winding post;

[0027] The turbine is fixedly mounted on the winding column;

[0028] 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;

[0029] The second tensioning mechanism includes:

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

[0031] A turbine, which is sleeved on a winding column;

[0032] The worm rod is rotatably arranged on the second side plate and meshes with the turbine. A handle is formed on the worm rod.

[0033] Furthermore, a first alloy wire hole and a second alloy wire hole are formed on both the first side plate and the second side plate.

[0034] 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,

[0035] 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.

[0036] Furthermore, the gap plugging device further comprises:

[0037] a sensing pen fixedly disposed on one of the first side plate and the second side plate;

[0038] The induction 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 induction pen. The induction grid is formed with an avoidance opening for allowing the damper to pass through.

[0039] Furthermore, the sensor pen includes:

[0040] A fixed section, which is fixedly arranged on one of the first side plate and the second side plate,

[0041] A spring 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 spring cavity, and the touch head is formed at an end of the sensing section away from the fixed section;

[0042] The second spring is arranged in the spring cavity and supported between the fixing section and the sensing section.

[0043] The present invention has the following advantages:

[0044] The gap plugging device with a low-melting-point metal plate of the present invention mainly includes a first side plate, a second side plate, a damper, a first slider, a second slider, 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 to each other, adjust the first slider and the second slider so that the positions of the first slider and the second slider in the second groove section are as centered as possible, and adjust the damper at the same time so that the extension direction of the damper and the disengagement direction thereof form an acute angle. 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 in the gap, and the gap plugging device is released. The damper can extend through its own elastic restoring force so that the first side plate and the second side plate are tightly fitted with the side walls of the gap respectively.

[0045] 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 their surfaces that match the concave-convex surface of the side wall of the gap. Therefore, when the gap plugging device with the low-melting-point metal plate of the present invention is inserted into 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 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.

[0046] Therefore, the gap plugging device with a low-melting-point metal plate of the present invention is in a compressed state when embedded in the gap. When the node where the gap exists 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.

[0047] In addition, 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 gap plugging device from escaping from the beam-column node, and can enhance the applicability of the gap plugging device to the side walls of the gap with different degrees of surface unevenness. When the configuration changes at the node, the damper can be extended and contracted by the external force, thereby providing resistance along the length of the damper to prevent the gap from increasing or decreasing. Relative movement then occurs between the first side plate and the second side plate, so that the damper can rotate relative to the first slider and the second slider, the first slider and the first side plate move relative to each other, and the second slider moves relative to each other relative to the second side plate. Therefore, the first friction structure, the second friction structure, the third friction structure and the fourth friction structure can all generate resistance to prevent the node from escaping, thereby increasing the impact resistance of the beam-column node, preventing movement between different side walls of the gap, and preventing the node from escaping.

[0048] On this basis, since the extension direction of the damper is set to form an acute angle with its disengagement direction, the gap plugging device can provide an initial load opposite to the disengagement direction of the beam after being plugged in place. At the same time, when the gap plugging device is subjected to an external force in the disengagement direction, the inclination of the damper decreases, and the damper is compressed, thereby providing resistance to prevent the gap plugging device from disengaging, thereby preventing the node from disengaging. Furthermore, when the damper is compressed, the pressure between it and the first side plate and the second side plate increases, and the pressure between the damper and the first friction structure and the second friction structure, the pressure between the first slider and the first side plate, and the pressure between the second slider and the second side plate also increase accordingly. The resistance that can be generated by the first friction structure, the second friction structure, the third friction structure, and the fourth friction structure also increase accordingly, which further enhances the anti-seismic effect and anti-disengagement effect of the gap plugging device.

[0049] In summary, the gap plugging device with a low-melting-point metal plate of the present invention 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 node with 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 avoid the gap plugging device from falling off, and then prevent the beam-column node from falling off with the help of its own damping force. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 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.

[0051] Figure 1A perspective view of a gap plugging device according to an embodiment of the present invention is shown;

[0052] Figure 2 An exploded view of a gap plugging device according to an embodiment of the present invention;

[0053] Figure 3 is a schematic diagram of a gap plugging device according to an embodiment of the present invention in use;

[0054] Figure 4 A first tensioning mechanism of the gap plugging device according to an embodiment of the present invention;

[0055] Figure 5 A perspective view of a first side plate of a gap plugging device according to an embodiment of the present invention;

[0056] Figure 6 A top view of a first side plate of a gap plugging device according to an embodiment of the present invention;

[0057] Figure 7 for Figure 6 A cross-sectional view of the first side plate of the gap plugging device along line AA is shown;

[0058] Figure 8 An exploded view of a damper of a gap plugging device according to an embodiment of the present invention;

[0059] Figure 9 This is a sensing pen for the gap plugging device according to an embodiment of the present invention.

[0060] Description of reference numerals:

[0061] 100, gap plugging device; 11, first side plate; 111, first base plate; 112, first friction plate; 12, second side plate; 121, second base plate; 122, second friction plate; 13, accommodating groove; 131, first groove section; 132, second groove section; 3, damper; 31, first slider; 32, second slider; 33, first friction ball; 34, second friction ball; 36, second ball hinge bowl; 37, first rod section; 381, guide groove; 382, first spring; 39, second rod section; 392, fifth friction structure; 41, first tensioning mechanism; 411. Winding column; 412. Turbine; 413. Turbine rod; 42. First alloy wire hole; 43. First shape memory alloy wire; 44. Second tensioning mechanism; 45. Second alloy wire hole; 46. Second shape memory alloy wire; 49. Limiting hole; 51. First low-melting-point metal plate; 52. Second low-melting-point metal plate; 53. First heating mechanism; 54. Second heating mechanism; 55. Heating mesh fixing groove; 61. Induction pen; 611. Fixing section; 612. Induction section; 613. Second spring; 614. Spring cavity; 62. Induction grid; 63. Avoidance opening. DETAILED DESCRIPTION

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] Figure 1 A perspective view of a gap plugging device 100 according to an embodiment of the present invention is shown. Figure 2 FIG. 1 is an exploded view of the gap plugging device 100 according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, this embodiment relates to a gap plugging device 100 having a low-melting-point metal plate, comprising a first side plate 11, a second side plate 12, a damper 3, a first slider 31, a second slider 32, 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 side plate 11 and the second side plate 12 are arranged opposite to each other, and an accommodating groove 13 is formed on the opposite surfaces. The accommodating groove 13 is sequentially formed with a first groove section 131 and a second groove section 132 along its depth direction. The cross-sectional area of the first groove section 131 is smaller than the cross-sectional area of the second groove section 132. The damper 3 is arranged between the first side plate 11 and the second side plate 12, and is suitable for providing resistance along its length direction.

[0067] The first slider 31 is suitable for sliding in the second slot section 132 of the first side plate 11. The first end of the damper 3 passes through the first slot section 131 of the accommodating groove 13 and is hinged to the first slider 31. The area of the first slider 31 is larger than the area of the first slot section 131. A first friction structure is provided between the damper 3 and the first slider 31, and a second friction structure is provided between the first slider 31 and the first side plate 11. The second slider 32 is suitable for sliding in the second slot section 132 of the second side plate 12. The second end of the damper 3 passes through the first slot section 131 of the second side plate 12 and is hinged to the second slider 32. The area of the second slider 32 is larger than the first slot section 131. A third friction structure is provided between the damper 3 and the second slider 32, and a fourth friction structure is provided between the second slider 32 and the second side plate 12.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] The gap plugging device 100 with a low-melting-point metal plate of this embodiment mainly includes a first side plate 11, a second side plate 12, a damper 3, a first slider 31, a second slider 332, 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, adjust the first slider 31 and the second slider 32 so that the positions of the first slider 31 and the second slider 32 in the second groove section 132 are as centered as possible, and adjust the damper 3 so that the extension direction of the damper 3 and the disengagement direction thereof form an acute angle (such as Figure 3 (as shown). Next, the distance between the first side panel 11 and the second side panel 12 is adjusted according to the width of the gap, so that the total thickness of the gap-filling device 100 is slightly smaller than the total width of the gap. At this point, the damper 3 is compressed due to the adjusted distance between the first side panel 11 and the second side panel 12. The gap-filling device 100 is then inserted into the gap. When the gap-filling device 100 is released, the damper 3 can extend due to its own elastic restoring force, so that the first side panel 11 and the second side panel 12 are respectively tightly fitted against the sidewalls of the gap.

[0072] 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 the heat. The softened first low-melting-point metal plate 51 can be squeezed into the concave-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 are formed on their surfaces that match the concave-convex surface of the side wall of the gap. Therefore, when the gap plugging device with low-melting-point metal plates of this embodiment is inserted into the gap, the multiple dampers 3 are in a compressed state. When the gap vibrates, they can use their own elastic restoring force to adjust their opening and closing as the gap opens and closes, thereby preventing the gap plugging device 100 from forming a gap between the side wall of the gap and causing the gap plugging device 100 to slip.

[0073] Therefore, the gap plugging device 100 of the present embodiment having a low-melting-point metal plate is in a compressed state when embedded in the gap. When the node where the gap exists 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 100 and the side wall of the gap, causing the gap plugging device 100 to slip.

[0074] In addition, 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 gap plugging device 100 from escaping from the beam-column node and enhancing the applicability of the gap plugging device 100 to gap side walls with different degrees of surface unevenness. When the node undergoes a configuration change, the damper 3 can be subjected to external force and expand and contract, thereby providing resistance along the length of the damper 3 to prevent the gap from expanding or contracting. Relative movement then occurs between the first side plate 11 and the second side plate 12, allowing the damper 3 to rotate relative to the first slider 31 and the second slider 32, with the first slider 31 moving relative to the first side plate 11 and the second slider 32 moving relative to the second side plate 12. Therefore, the first friction structure, the second friction structure, the third friction structure, and the fourth friction structure can all generate resistance to prevent the node from escaping, thereby increasing the impact resistance of the beam-column node, preventing movement between the different side walls of the gap, and preventing the node from escaping.

[0075] On this basis, since the extension direction of the damper 3 is set to form an acute angle with its escape direction ( Figure 3 The direction indicated by the middle arrow is the embedding direction of the single damping gap plugging device 100), which enables the gap plugging device 100 to provide an initial load opposite to the direction of the beam disengagement after being embedded in place. At the same time, when the gap plugging device 100 is subjected to an external force in the disengagement direction, the inclination of the damper 3 decreases, and the damper 3 is compressed, thereby providing resistance to prevent the gap plugging device 100 from disengaging, thereby preventing the node from disengaging. Furthermore, when the damper 3 is compressed, the pressure between it and the first side plate 11 and the second side plate 12 increases, and the pressure between the damper 3 and the first friction structure and the second friction structure, the pressure between the first slider 31 and the first side plate 11, and the pressure between the second slider 32 and the second side plate 12 also increase accordingly. The resistance that can be generated by the first friction structure, the second friction structure, the third friction structure and the fourth friction structure also increases accordingly, which further enhances the anti-seismic effect and anti-disengagement effect of the gap plugging device 100.

[0076] To sum up, the gap plugging device 100 with a low-melting-point metal plate in this embodiment can overcome the defect of the gap plugging device 100 in the prior art that it is easy to fall off from the gap when the node with the gap vibrates, thereby providing a gap plugging device 100 that can autonomously adjust its own opening and closing degree as the gap opens and closes, which can prevent the gap plugging device 100 from falling off, and then prevent the beam-column node from falling off with the help of its own damping force.

[0077] The first side plate 11 can optionally be integral. Preferably, in this embodiment, to facilitate insertion of the first slider 31 into the accommodating recess 13, the first side plate 111 includes a first base plate 111 and a first friction plate 112. The first friction plate 112 is detachably connected to the first base plate 111 on a side thereof facing away from the damper 3. The accommodating recess 13 is formed between the first base plate 111 and the first friction plate 112.

[0078] The second friction structure may be an anti-slip material sandwiched between the first slider 31 and the first side plate 11, or may be a frosted layer formed on at least one of the first slider 31 and the first side plate 11. Preferably, in this embodiment, the second friction structure includes a friction and anti-slip material coated on at least one of the first slider 31 and the first side plate 11.

[0079] The second side plate 12 can optionally be integral. Preferably, in this embodiment, to facilitate insertion of the second slider 32 into the accommodating recess 13, the second side plate 12 includes a second base plate 121 and a second friction plate 122. The second friction plate 122 is detachably connected to the second base plate 121 on a side thereof distal from the damper 3. The accommodating recess 13 is formed between the second base plate 121 and the second friction plate 122.

[0080] The fourth friction structure can be optionally an anti-slip material sandwiched between the second slider 32 and the second side plate 12, or can be optionally a frosted layer formed on at least one of the second slider 32 and the second side plate 12. Preferably, in this embodiment, the fourth friction structure includes a friction and anti-slip material coated on at least one of the second slider 32 and the second side plate 12.

[0081] The first friction structure may optionally include a damping hinge formed between the damper 3 and the first slider 31. Preferably, in this embodiment, the first friction structure includes a first friction ball 33 and a first ball-jointed bowl. The first friction ball 33 is formed at the first end of the damper 3. The first ball-jointed bowl is formed on the side of the first slider 31 proximal to the damper 3. The first friction ball 33 is confined within the first ball-jointed bowl.

[0082] The first friction ball 33 is capable of rotating relative to the first ball-jointed bowl, while the contact surface between the first friction ball 33 and the first ball-jointed bowl generates resistance that hinders the rotation of the damper 3. A damping layer is formed on at least one of the first friction ball 33 and the first ball-jointed bowl to increase the maximum static friction between the first friction ball 33 and the first ball-jointed bowl. The damping layer can be a frosted surface formed on the first friction ball 33 or the first ball-jointed bowl, or a non-slip material sandwiched between the first friction ball 33 and the first ball-jointed bowl. Preferably, in this embodiment, the damping layer is a friction and non-slip material coated on the first friction ball 33 or the first ball-jointed bowl.

[0083] The third friction structure may optionally include a damping hinge formed between the damper 3 and the second slider 32. Preferably, in this embodiment, the third friction structure includes a second friction ball 34 and a second ball-jointed bowl 36. The second friction ball 34 is formed at the second end of the damper 3. The second ball-jointed bowl 36 is formed on the side of the second slider 32 proximal to the damper 3. The second friction ball 34 is confined within the second ball-jointed bowl 36. The second friction ball 34 is capable of rotating relative to the second ball-jointed bowl 36, while a resistance is generated on the contact surface between the second friction ball 34 and the second ball-jointed bowl 36 to prevent the damper 3 from rotating.

[0084] Preferably, a damping layer is formed on at least one of the second friction ball 34 and the second ball-jointed bowl 36 to increase the maximum static friction between the second friction ball 34 and the second ball-jointed bowl 36. The damping layer can be a frosted surface formed on the second friction ball 34 or the second ball-jointed bowl 36, or an anti-slip material interposed between the second friction ball 34 and the second ball-jointed bowl 36. Preferably, in this embodiment, the damping layer is a friction and anti-slip material coated on the second friction ball 34 or the second ball-jointed bowl 36.

[0085] The damper 3 is preferably, but not limited to, a liquid damper 3, a gas damper 3 or an electromagnetic damper 3. In this embodiment, Figure 8 As shown, the damper 3 includes a first rod section 37, a second rod section 39, a fifth friction structure 392, and a first spring 382. The first rod section 37 is formed with a guide groove 381 extending along its length. The second rod section 39 is slidably disposed within the guide groove 381. The fifth friction structure 392 is formed within the guide groove 381 and is sandwiched between the first and second rod sections 37, 39.

[0086] The first spring 382 is located in the guide groove 381, and its two ends respectively abut against the first section rod 37 and the second section rod 39. When the damper 3 is extended or retracted by an external force, the first section rod 37 and the second section rod 39 can slide relative to each other, causing the first spring 382 to stretch or compress, thereby providing resistance to the movement of the gap. In addition, when the first section rod 37 and the second section rod 39 move relative to each other, they can move relative to the fifth friction structure 392, thereby generating friction on the contact surface between the fifth friction structure 392 and the first section rod 37 or the second section rod 39, thereby further enhancing the anti-seismic effect of the gap plugging device 100.

[0087] Preferably, in this embodiment, the gap plugging device 100 further includes an elastic self-resetting mechanism arranged between the first side plate 11 and the second side plate 12 .

[0088] Preferably, in this embodiment, the elastic self-resetting mechanism includes at least one set of first tensioning mechanisms 41 , at least one set of second tensioning mechanisms 44 , at least two first shape memory alloy wires 43 and at least two second shape memory alloy wires 46 .

[0089] Among them, such as Figure 5 、 Figure 6 and Figure 7 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 42 are formed in the first side plate 11. The first ends of the first alloy wire holes 42 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 42 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 42 and the second end is connected to the first tensioning mechanism 41 .

[0091] Each set of second tensioning mechanisms 44 includes two second tensioning mechanisms 44 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 45 as the second tensioning mechanisms 44. The first ends of the second alloy wire holes 45 are located on a side of the second side plate 12 proximal to the damper 3 and are disposed proximal to the second end of the second side plate 12. The second ends of the second alloy wire holes 45 extend to the second tensioning mechanisms 44.

[0092] At least two second shape memory alloy wires 46 , each second shape memory alloy wire 46 has a first end fixedly connected to the first side plate 11 , passes through a second alloy wire hole 45 and has a second end connected to the second tensioning mechanism 44 .

[0093] Therefore, at least two first shape memory alloy wires 43 and at least two second shape memory alloy wires 46 can cause the first side panel 11 and the second side panel 12 to move closer to each other, and the damper 3 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 damper 3 and the tensioning force of the first shape memory alloy wire 43 and the second shape memory alloy wire 46.

[0094] Furthermore, since the first shape memory alloy wire 43 and the second shape memory alloy wire 46 can be tensioned from the four corners of the first side panel 11 and the second side panel 12 respectively, the tension force they provide 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 46 can be stretched and rely on their own tensioning properties to achieve a follow-up adjustment effect during the earthquake. While ensuring the stability of the plugging device 100 itself, it avoids the formation of gaps between the gap plugging device 100 and the side walls of the gap, and prevents the gap plugging device 100 from falling out of the gap.

[0095] The first tensioning mechanism 41 may be formed at the end of the first side plate 11 along the length direction, or may be formed on the side of the first side plate 11 close to the second side plate 12, that is, on the side along the thickness direction, or may be formed inside the first side plate 11 and partially leak out from one side or the end of the first side plate 11, wherein the end refers to one end of the first side plate 11 along the length direction, and the side wall refers to the side of the first side plate 11 along the thickness direction. Preferably, in this embodiment, a limiting hole 49 extending along the thickness direction is formed at the first end of the first side plate 11 and the second side plate 12. Figure 4 As shown, the first tensioning mechanism 41 includes a winding post 411, a turbine 412, and a worm shaft 413. The winding post 411 is rotatably inserted into the retaining hole 49, and the first shape memory alloy wire 43 is wound around the winding post 411. The turbine 412 is fixedly mounted on the winding post 411. The worm shaft 413 is rotatably mounted on the first side plate 11 and meshes with the turbine 412. A handle is formed on the worm shaft 413.

[0096] After the operator places the gap plugging device 100 into the gap of the beam-column node, the operator can rotate the vortex rod 413 by turning the handle, and drive the turbine 412 to rotate, so that the first shape memory alloy wire 43 is wound on the winding column 411, so as to put the first shape memory alloy wire 43 in a tensioned state and cooperate with the damper 3 to ensure 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.

[0097] The second tensioning mechanism 44 includes a winding post 411, a turbine 412, and a worm shaft 413. The winding post 411 is rotatably inserted into the retaining hole 49, and the second shape memory alloy wire 46 is wound around the winding post 411. The turbine 412 is sleeved around the winding post 411. The worm shaft 413 is rotatably mounted on the second side plate 12 and meshes with the turbine 412. A handle is formed on the worm shaft 413.

[0098] After the operator places the gap plugging device into the gap of the beam-column node, the operator can rotate the vortex rod 413 by turning the handle, and drive the turbine 412 to rotate, so that the second shape memory alloy wire 46 is wound on the winding column 411, so that the second shape memory alloy wire 46 is in a tensioned state, cooperating with the damper 3, ensuring that the second side plate 12 and the first side plate 12 can be reliably constrained at an angle that matches the side wall of the gap.

[0099] Preferably, in this embodiment, the first and second side panels 11, 12 are both formed with the first and second alloy wire holes 42, 45. Therefore, the structures of the first and second side panels 11, 12 are identical, and the first and second side panels 11, 12 can be manufactured using the same production process, thereby helping to reduce the production costs of the first and second side panels 11, 12.

[0100] The second tensioning mechanism 44 includes a winding post 411, a turbine 412, and a worm shaft 413. The winding post 411 is rotatably inserted into the retaining hole 49, and the second shape memory alloy wire 46 is wound around the winding post 411. The turbine 412 is sleeved around the winding post 411. The worm shaft 413 is rotatably mounted on the second side plate 12 and meshes with the turbine 412. A handle is formed on the worm shaft 413.

[0101] After the operator places the gap plugging device into the gap of the beam-column node, the operator can rotate the vortex rod 413 by turning the handle, and drive the turbine 412 to rotate, so that the second shape memory alloy wire 46 is wound on the winding column 411, so that the second shape memory alloy wire 46 is in a tensioned state, cooperating with the damper 3, ensuring that the second side plate 12 and the first side plate 12 can be reliably constrained at an angle that matches the side wall of the gap.

[0102] Preferably, in this embodiment, the first and second side panels 11, 12 are both formed with the first and second alloy wire holes 42, 45. Therefore, the structures of the first and second side panels 11, 12 are identical, and the first and second side panels 11, 12 can be manufactured using the same production process, thereby helping to reduce the production costs of the first and second side panels 11, 12.

[0103] Preferably, in this embodiment, in order to provide a means for monitoring the amount of disengagement of the beam-column joint, the gap plugging device 100 preferably further includes a sensing pen 61 and a sensing grid 62. The sensing pen 61 is fixedly mounted on one of the first side panel 11 and the second side panel 12. The sensing grid 62 is fixedly mounted on the other of the first side panel 11 and the second side panel 12 and abuts against the touch head of the sensing pen 61. The sensing grid 62 is formed with an escape opening 63 for allowing the damper 3 to pass through. For example, in Figure 1In 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 .

[0104] In this embodiment, if Figure 9 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 panel 11 and the second side panel 12. A spring 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 spring cavity 614. The touch head is formed at the end of the sensing section 612 away from the fixed section 611. The second spring 613 is disposed within the spring cavity 614 and supported between the fixed section 611 and the sensing section 612. The second spring 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 sensing pen 61 to maintain contact with the sensing grid 62, enabling the sensing grid 62 to record the starting and ending positions of the sensing pen 61 after the gap is deformed by force. Preferably, in this embodiment, the fixed section 611 is fixedly mounted on the first side plate 11. A spring cavity 614 extending along its length is formed within the fixed section 611, and the sensing section 612 is slidably inserted into the spring cavity 614. The second spring 613 is preferably, but not limited to, a spring or elastic band.

[0105] Next, the method of using the gap plugging device 100 according to the embodiment of the present invention is described:

[0106] Step 1: 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, adjust the positions of the first slider 31 and the second slider 32 in the accommodating groove 13 so that their positions in the accommodating groove 13 are as centered as possible, and adjust the angle of the damper 3 so that the damper 3 forms an acute angle with its disengagement direction.

[0107] 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 plugging device 100 is slightly smaller than the total width of the gap. At this time, the damper 3 is compressed to a certain extent.

[0108] Step 3: Embed the compressed device into the gap of the beam-column node, loosen the gap plugging device 100, and partially release the compression of the damper 3, so that the panel abuts against the side wall of the gap.

[0109] 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.

[0110] Step 5: Rotate the handle to tighten the first shape memory alloy wire 43 and the second shape memory alloy wire 46 to a limit that does not cause the damper 3 to generate new deformation.

[0111] Step 6: 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.

[0112] In summary, the gap plugging device 100 of this embodiment can overcome the defect that the gap plugging device 100 in the prior art cannot prevent the node from falling out. It can prevent the node from falling out and provides a monitoring means for the node's falling out amount.

[0113] 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 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, and an accommodating groove (13) is formed on the opposite surfaces, and the accommodating groove (13) is sequentially formed with a first groove section (131) and a second groove section (132) along a depth direction thereof; a damper (3) disposed between the first side plate (11) and the second side plate (12) and adapted to provide resistance along its length; a first slider (31) adapted to slide in the second slot section (132) of the first side plate (11); a first end of the damper (3) passes through the first slot section (131) of the accommodating groove (13) and is hingedly connected to the first slider (31); an area of the first slider (31) is larger than an area of the first slot section (131); a first friction structure is provided between the damper (3) and the first slider (31); and a second friction structure is provided between the first slider (31) and the first side plate (11); a second slider (32) adapted to slide in the second slot section (132) of the second side plate (12); a second end of the damper (3) passing through the first slot section (131) of the second side plate (12) and being hingedly connected to the second slider (32); an area of the second slider (32) being larger than an area of the first slot section (131); a third friction structure being provided between the damper (3) and the second slider (32); and a fourth friction structure being provided between the second slider (32) and 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) 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 first side plate (11) comprises a first base plate (111) and a first friction plate (112) detachably connected to the first base plate (111) at a side of the first base plate (111) away from the damper (3), and the accommodating groove (13) is formed between the first base plate (111) and the first friction plate (112); and / or, The second side plate (12) includes a second base plate (121) and a second friction plate (122) detachably connected to the second base plate (121) on a side of the second base plate (121) away from the damper (3), and the accommodating groove (13) is formed between the second base plate (121) and the second friction plate (122).

3. The gap plugging device according to claim 1, characterized in that The first friction structure includes: a first friction ball (33) formed at a first end of the damper (3); a first ball joint bowl, formed on a side of the first slider (31) close to the damper (3), wherein the first friction ball (33) is confined within the first ball joint bowl; and / or, The third friction structure includes: a second friction ball (34) formed at a second end of the damper (3); A second ball joint bowl (36) is formed on a side of the second sliding block (32) close to the damper (3), and the second friction ball (34) is confined in the second ball joint bowl (36).

4. The gap plugging device according to claim 1, characterized in that The damper (3) comprises: A first rod section (37) is formed with a guide groove (381) extending along its length direction; A second rod (39) slidably inserted into the guide groove (381); a fifth friction structure (392) formed in the guide groove (381) and sandwiched between the first section rod (37) and the second section rod (39); The first spring (382) is located in the guide groove (381) and has two ends respectively abutting against the first section rod (37) and the second section rod (39).

5. The gap plugging device according to any one of claims 1 to 4, characterized in that: The gap plugging device (100) 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 (42) corresponding in number to the number of the first tensioning mechanisms (41) being formed in the first side plate (11), the first ends of the first alloy wire holes (42) being located on a side of the first side plate (11) close to the second side plate (12) and being arranged at the second end of the first side plate (11), the second ends of the first alloy wire holes (42) extending to 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 (42) and a second end being connected to the first tensioning mechanism (41); At least one group of second tensioning mechanisms (44), each group of second tensioning mechanisms (44) comprising two second tensioning mechanisms (44) symmetrically distributed on the first end of the second side plate (12), the second side plate (12) being formed with second alloy wire holes (45) corresponding in number to the number of the second tensioning mechanisms (44), the first end of the second alloy wire hole (45) being located on a side of the second side plate (12) close to the damper (3) and being arranged close to the second end of the second side plate (12), the second end of the second alloy wire hole (45) extending to the second tensioning mechanism (44); At least two second shape memory alloy wires (46), each second shape memory alloy wire (46) having a first end fixedly connected to the first side plate (11), and each second shape memory alloy wire (46) passing through a second alloy wire hole (45) and having a second end connected to the second tensioning mechanism (44).

6. The gap plugging device according to claim 5, 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 (411) rotatably inserted into the limiting hole (49), the first shape memory alloy wire (43) being wound around the winding post (411); a turbine (412) fixedly sleeved on the winding post (411); a worm rod (413) rotatably disposed on the first side plate (11) and meshing with the turbine (412), wherein a handle is formed on the worm rod (413); The second tensioning mechanism (44) comprises: a winding post (411) rotatably inserted into the limiting hole (49), the second shape memory alloy wire (46) being wound around the winding post (411); a turbine (412) sleeved on the winding post (411); A worm rod (413) is rotatably arranged on the second side plate (12) and meshes with the turbine (412). A handle is formed on the worm rod (413).

7. The gap plugging device according to claim 5, characterized in that A first alloy wire hole (42) and a second alloy wire hole (45) are formed on both the first side plate (11) and the second side plate (12).

8. The gap plugging device according to any one of claims 1 to 4, characterized in that: The first heating mechanism (53) comprises 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).

9. The gap plugging device according to any one of claims 1 to 4, characterized in that: The 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); A 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). The sensing grid (62) is formed with an avoidance opening (63) that allows the damper (3) to pass through.

10. The gap plugging device according to claim 9, characterized in that: The sensing pen (61) comprises: A fixed section (611) is fixedly arranged on one of the first side plate (11) and the second side plate (12), A sensing section (612), wherein a spring cavity (614) extending along the length direction of 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), and the touch head is formed at one end of the sensing section (612) away from the fixed section (611); A second spring (613) is disposed in the spring cavity (614) and supported between the fixing section (611) and the sensing section (612).

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