Hot melt adhesive connector and method of using the same

Abstract

The present invention discloses a hot melt adhesive connector and a method for using the same. The connector uses bolts, hot melt adhesive, and a matching nut gun. The bolts are used to connect I-beams and concrete floor slabs. The matching nut gun heats the block of hot melt adhesive, and the nut gun applies pressure to fill the hot melt adhesive into the gap between the bolt and the component, making the connection tighter and greatly reducing the impact of the connector's machining accuracy on the connection performance. The hot melt adhesive can also be removed or replaced under the action of heating and pressurizing the matching nut gun, thereby enabling easy disassembly or maintenance of the connector. The present invention achieves rapid installation and non-destructive disassembly of the connector, while greatly improving construction quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of fasteners, and in particular relates to a hot melt adhesive connector and a method for using the same. Background Art

[0002] In construction projects, the combination of overall assembly and partial on-site casting not only controls quality, saves materials, and accelerates construction, but is also energy-efficient and environmentally friendly. However, in actual engineering applications, there's a conflict between manufacturing precision and the overall structural installation redundancy. To ensure the operability of the overall assembly and the mechanical properties after assembly, fully prefabricated structures have been proposed. Furthermore, assembly and disassembly are two key issues with fully prefabricated structures. Simple disassembly offers significant advantages for subsequent maintenance.

[0003] Existing steel-concrete connections utilize high-strength bolts, such as those in CN110359358A. However, these bolts use tapered cast iron as the mechanical transition zone between the bolts and the concrete slab, resulting in a complex manufacturing process and a wide variety of components, significantly increasing the cost of the connectors. Furthermore, discrepancies between the actual positioning and theoretical dimensions of the components during machining make installation of the connectors difficult. During subsequent maintenance, the components can deform due to prolonged stress, leading to damage and time-consuming disassembly of the connectors. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a hot melt adhesive connector and a method for using the same.

[0005] A hot melt adhesive connector and a method for using the same, comprising a bolt, hot melt adhesive, and a matching nut gun. The bolt connects an I-beam and a concrete slab. The hot melt adhesive is used to fill gaps between the screw and the concrete slab, and between the screw and the I-beam. The matching nut gun can heat the solid hot melt adhesive to a liquid state. The nut gun applies pressure to fill the liquid hot melt adhesive into the gap between the bolt and the component and tightens the nut, thereby achieving seamless installation of the connector. The nut gun removes the hot melt adhesive from the gap between the bolt and the component by applying heat and pressure, thereby achieving easy disassembly of the connector.

[0006] Preferably, in the above-mentioned hot melt adhesive connector, the hot melt adhesive is in a high-strength solid state at room temperature, melts at a temperature of 160-180° and has a certain fluidity.

[0007] Preferably, in the above-mentioned hot melt adhesive connector, the matching nut gun includes a nut tightening body, a hot melt adhesive delivery sleeve, a hot melt adhesive tank, a heating device II, a pressurizing device and a control component. The inner wall of the hot melt adhesive tank is in contact with the heating device II, one side of which is connected to the hot melt adhesive delivery sleeve, and the other side is connected to the pressurizing device.

[0008] Preferably, in the above-mentioned hot melt adhesive connector, the nut tightening body includes a nut nesting portion, a sleeve, a heating device I and a braking component, one side of the nut nesting portion is connected to the nut, and the other side is connected to one side of the sleeve, a heating device I is provided on the inner side of the sleeve wall, and the other side of the sleeve is connected to the braking component.

[0009] Preferably, in the above-mentioned hot melt adhesive connector, the braking component includes a gear, a gear commutator and a motor, one end of the motor is connected to one end of the gear commutator, and the other end of the gear commutator is connected to the gear.

[0010] Preferably, in the above-mentioned hot melt adhesive connector, a layer of heat insulation film is provided outside the hot melt adhesive delivery sleeve, the cross-section of the starting end is square and the end is annular, the starting end is connected to the hot melt adhesive bin, and the end is connected to the pressure hood. In addition, the inner wall of the starting end of the hot melt adhesive delivery sleeve is in contact with the heating device II.

[0011] Preferably, in the above-mentioned hot melt adhesive connector, the solid hot melt adhesive in the hot melt adhesive bin is put into the matching nut gun through the hatch.

[0012] Preferably, the method for using the hot melt adhesive connector includes: a method for installing the hot melt adhesive connector and a method for disassembling the hot melt adhesive connector.

[0013] Preferably, in the above-mentioned method for using the hot melt adhesive connector, the method for installing the hot melt adhesive connector includes:

[0014] Step 1: Align the I-beam with the concrete slab connection holes and manually install the bolts;

[0015] Step 2: Put the solid hot melt adhesive into the hot melt adhesive bin, and turn on the heating device II on the inner wall of the hot melt adhesive delivery sleeve and the inner wall of the hot melt adhesive bin through the control component to melt the hot melt adhesive;

[0016] Step 3: Put the nut on the nut nesting part and make the pressure cover close to the I-beam;

[0017] Step 4: Open the pressurizing device and press the liquid hot melt adhesive from the hot melt adhesive tank into the delivery sleeve, and then press it into the gap between the bolt and the component until it covers the nut, and close the pressurizing device.

[0018] Step 5: Wait until the hot melt adhesive has not cooled and solidified, open the nut to tighten the main body and tighten the nut. After the hot melt adhesive cools down quickly, close the matching nut gun to complete the installation.

[0019] Preferably, in the above-mentioned method for using the hot melt adhesive connector, the method for disassembling the hot melt adhesive connector includes:

[0020] Step 1: Turn on the heating device II of the nut gun to melt the hot melt adhesive remaining in the gun, turn on the pressurizing device to squeeze out the hot melt adhesive, turn off the heating device II, and turn off the pressurizing device;

[0021] Step 2: Put the nut on the nut nesting part and make the pressure cover close to the I-beam;

[0022] Step 3: Turn on the heating device I of the nut tightening body to heat the screw, and melt the solid hot melt adhesive around the bolt through the thermal conductivity of the screw;

[0023] Step 4: After the hot melt adhesive is completely melted, open the nut, tighten the main body, loosen the nut, open the pressurizing device to blow out the hot melt adhesive in the hole, and close the pressurizing device;

[0024] Step 5: Remove the nuts, take out the bolts, close the matching nut gun, and complete the disassembly.

[0025] Preferably, the above-mentioned method for using the hot melt adhesive connector, the method for installing the hot melt adhesive connector, and the method for disassembling the hot melt adhesive connector can be used in combination to achieve rapid and lossless replacement of the connector.

[0026] It can be seen from the technical solutions disclosed above that, compared with the prior art, the present invention has the following beneficial effects:

[0027] In summary, the present invention provides a hot melt adhesive connector and a method of using the same.

[0028] A hot melt adhesive connector and its use method, comprising a bolt, hot melt adhesive, and a matching nut gun. Since the bolt connects an I-beam and a concrete slab, the hot melt adhesive is used to fill the gaps between the screw and the concrete slab, and between the screw and the I-beam. The matching nut gun can heat the solid hot melt adhesive to a liquid state. The nut gun applies pressure to fill the liquid hot melt adhesive into the gap between the bolt and the component and tightens the nut, thereby achieving seamless installation of the connector. The nut gun removes the hot melt adhesive from the gap between the bolt and the component by applying heat and pressure, making the connection tighter, greatly reducing the impact of the connector's machining accuracy on the connection performance, simplifying the connector's construction and installation steps, improving construction convenience to a certain extent, and achieving simple installation of the connector. In addition, the hot melt adhesive in the connector can be removed or replaced under the action of heating and pressurization by the matching nut gun, avoiding damage caused by removing the connector under stress and deformation conditions, thereby achieving simple and non-destructive disassembly or maintenance of the connector, greatly improving construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram (cross-sectional view) of a hot melt adhesive connector and its use method.

[0030] Figure 2 for Figure 1Schematic diagram of the bolt structure.

[0031] Figure 3 for Figure 1 Schematic diagram of the structure of the matching nut gun.

[0032] Figure 4 for Figure 1 Schematic diagram of the structure of the nut tightening body.

[0033] Figure 5 for Figure 3 Schematic cross-section of AA and BB.

[0034] In the figure: 1-hot melt adhesive, 2-bolt, 21-nut, 22-screw, 23-gasket, 24-nut, 3-matching nut gun, 31-thermal insulation film, 32-hot melt adhesive delivery sleeve, 321-outer wall of hot melt adhesive delivery sleeve, 322-inner wall of hot melt adhesive delivery sleeve, 33-nut tightening body, 331-nut nesting part, 332-sleeve, 333-heating device I, 334-gear, 335-gear commutator, 336-motor, 34-control component, 35-heating device II, 36-hot melt adhesive tank, 37-pressurizing device, 38-pressure hood, 4-concrete slab, 5-I-beam. DETAILED DESCRIPTION

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following examples, combined with the accompanying drawings, will provide a detailed description of the technical content and features of the present invention. It should be noted that the drawings are all in a very simplified form and are not precisely proportioned, and are only used to conveniently and clearly assist in illustrating the purpose of the embodiments of the present invention. For ease of description, the "upper" and "lower" described below are consistent with the upper and lower directions in the accompanying drawings, but this does not constitute a limitation of the technical solution of the present invention.

[0036] See also Figure 1-Figure 5 This embodiment discloses a hot melt adhesive connector, including a bolt 2, hot melt adhesive 1 and a matching nut gun 3. The bolt 2 is used to connect the I-beam 5 and the concrete slab 4. The hot melt adhesive 1 is used to fill the gaps between the screw 22 and the concrete slab 4, and between the screw 22 and the I-beam 5. The matching nut gun 3 can heat the solid hot melt adhesive 1 to a liquid state. The nut gun 3 fills the liquid hot melt adhesive 1 into the gap between the bolt 2 and the component by applying pressure and tightening the nut 24 to achieve seamless installation of the connector. The nut gun 3 removes the hot melt adhesive in the gap between the bolt 2 and the component by heating and pressurizing, thereby achieving easy disassembly of the connector.

[0037] Preferably, in the above-mentioned hot melt adhesive connector, the hot melt adhesive 1 is in a high-strength solid state at room temperature, melts at a temperature of 160-180° and has a certain fluidity.

[0038] Preferably, in the above-mentioned hot melt adhesive connector, the matching nut gun 3 includes a nut tightening body 33, a hot melt adhesive delivery sleeve 32, a hot melt adhesive bin 36, a heating device II35, a pressurizing device 37 and a control component 34. The inner wall of the hot melt adhesive bin is in contact with the heating device II35, one side of which is connected to the hot melt adhesive delivery sleeve 32, and the other side is connected to the pressurizing device 37.

[0039] Preferably, in the above-mentioned hot melt adhesive connector, the nut tightening body 33 includes a nut nesting portion 331, a sleeve 332, a heating device I333 and a braking component. One side of the nut nesting portion 331 is connected to the nut 24, and the other side is connected to one side of the sleeve. The heating device I333 is arranged on the inner side of the sleeve wall, and the other side of the sleeve is connected to the braking component.

[0040] Preferably, in the above-mentioned hot melt adhesive connector, the braking component includes a gear 334, a gear commutator 335 and a motor 336, one end of the motor 336 is connected to one end of the gear commutator 335, and the other end of the gear commutator 335 is connected to the gear 334.

[0041] Preferably, in the above-mentioned hot melt adhesive connector, a layer of heat insulation film 31 is provided outside the hot melt adhesive delivery sleeve, the cross-section of the starting end is square and the end is annular, the starting end is connected to the hot melt adhesive bin, and the end is connected to the pressure hood. In addition, the inner wall of the starting end of the hot melt adhesive delivery sleeve is in contact with the heating device II35.

[0042] Preferably, in the above-mentioned hot melt adhesive connector, the solid hot melt adhesive in the hot melt adhesive bin is put into the matching nut gun 3 through the hatch.

[0043] The present invention provides a hot melt adhesive connector and a method for using the same, which adopts a bolt 2, hot melt adhesive 1 and a matching nut gun 3. Since the bolt 2 connects the I-beam 5 and the concrete slab 4, the hot melt adhesive 1 is used to fill the gaps between the screw 22 and the concrete slab 4, and the screw 22 and the I-beam 5. The matching nut gun 3 can heat the solid hot melt adhesive 1 to a liquid state. The nut gun 3 fills the liquid hot melt adhesive 1 into the gap between the screw 22 and the component by applying pressure and tightens the nut 24 to achieve seamless installation of the connector. The nut gun 3 removes the hot melt adhesive in the gap between the screw 22 and the component by applying heat and pressure, making the connection tighter, greatly reducing the influence of the connector processing accuracy on the connection performance, simplifying the construction and installation steps of the connector, improving the convenience of construction to a certain extent, and achieving simple installation of the connector. In addition, the hot melt adhesive 1 in the connector can be removed or replaced under the action of heating and pressurization of the matching nut gun 3, avoiding damage caused by removing the connector under stress and deformation conditions, thereby realizing simple and non-destructive disassembly or maintenance of the connector, greatly improving the construction quality.

[0044] Preferably, in the above-mentioned method for using the hot melt adhesive connector, the method for installing the hot melt adhesive connector includes:

[0045] Step 1: Align the connecting holes of the I-beam 5 and the concrete slab 4 and manually install the bolts 2;

[0046] Step 2: Put the solid hot melt adhesive 1 into the hot melt adhesive bin 36, and turn on the heating device II35 on the inner wall of the hot melt adhesive delivery sleeve 32 and the inner wall of the hot melt adhesive bin 36 through the control component 34 to melt the hot melt adhesive;

[0047] Step 3: Put the nut 24 on the nut nesting part 331 and make the pressure cover 38 close to the I-beam 5;

[0048] Step 4: Open the pressurizing device 37, press the liquid hot melt adhesive 1 from the hot melt adhesive tank 36 into the delivery sleeve 32, and then press it into the gap between the bolt 2 and the component until it covers the nut 21, and close the pressurizing device 37;

[0049] Step 5: Before the hot melt adhesive 1 cools down and solidifies, open the nut tightening body 33 and tighten the nut 24. After the hot melt adhesive 1 cools down quickly, close the matching nut gun 3 to complete the installation.

[0050] Preferably, the hot melt adhesive connector disassembly method includes:

[0051] Step 1: Turn on the heating device II35 of the matching nut gun 3 to melt the hot melt adhesive 1 remaining in the gun, turn on the pressurizing device 37 to squeeze out the hot melt adhesive 1, turn off the heating device II35, and turn off the pressurizing device 37;

[0052] Step 2: Put the nut 24 on the nut nesting part 331 and make the pressure cover 38 close to the I-beam 5;

[0053] Step 3: Turn on the heating device I333 of the nut tightening body 33 to heat the screw 22, and melt the solid hot melt adhesive 1 around the bolt 2 through the thermal conductivity of the screw 22;

[0054] Step 4: After the hot melt adhesive 1 is completely melted, open the nut to tighten the main body 33, loosen the nut 24, and then open the pressurizing device 37 to blow out the hot melt adhesive 1 in the hole, and close the pressurizing device 37;

[0055] Step 5: Remove the nut 24, take out the bolt 2, close the matching nut gun 3, and complete the disassembly.

[0056] Preferably, the above-mentioned method for using the hot melt adhesive connector, the method for installing the hot melt adhesive connector, and the method for disassembling the hot melt adhesive connector can be used in combination to achieve rapid and lossless replacement of the connector.

[0057] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A hot melt adhesive connector, characterized in that: The utility model comprises a bolt, hot melt adhesive and a matching nut gun; the bolt is used to connect the I-beam and the concrete slab, the hot melt adhesive is used to fill the gap between the screw and the concrete slab, and the screw and the I-beam, and the matching nut gun can heat the solid hot melt adhesive to liquid state. The nut gun applies pressure to fill the liquid hot melt adhesive into the gap between the bolt and the component and tightens the nut to achieve seamless installation of the connecting parts. The nut gun removes the hot melt adhesive from the gap between the bolt and the component by applying heat and pressure, thereby achieving easy disassembly of the connecting parts; The matching nut gun includes a nut tightening body, a hot melt adhesive delivery sleeve, a hot melt adhesive tank, a heating device II, a pressurizing device and a control component. The inner wall of the hot melt adhesive tank is in contact with the heating device II, one side of which is connected to the hot melt adhesive delivery sleeve and the other side is connected to the pressurizing device; The nut tightening body includes a nut nesting portion, a sleeve, a heating device I and a brake component. One side of the nut nesting portion is connected to the nut, and the other side is connected to one side of the sleeve. The heating device I is provided on the inner side of the sleeve wall, and the other side of the sleeve is connected to the brake component. The braking component includes a gear, a gear commutator and a motor. One end of the motor is connected to one end of the gear commutator, and the other end of the gear commutator is connected to the gear.

2. The hot melt adhesive connector according to claim 1, characterized in that: The hot melt adhesive is in a high-strength solid state at room temperature and melts and becomes fluid at a temperature of 160-180°.

3. The hot melt adhesive connector according to claim 1, characterized in that: The hot melt adhesive delivery sleeve is provided with a layer of heat insulation film outside. The cross section of its starting end is square and the end is annular. The starting end is connected to the hot melt adhesive bin and the end is connected to the pressure cover. In addition, the inner wall of the starting end of the hot melt adhesive delivery sleeve is in contact with the heating device II.

4. The hot melt adhesive connector according to claim 1, characterized in that: The solid hot melt adhesive in the hot melt adhesive bin is put into the matching nut gun through the hatch.

5. A method for using the hot melt adhesive connector according to any one of claims 1 to 4, characterized in that: The invention includes a method for installing a hot melt adhesive connector and a method for disassembling a hot melt adhesive connector. The method for installing a hot melt adhesive connector includes: Step 1: Align the I-beam with the concrete slab connection holes and manually install the bolts; Step 2: Put the solid hot melt adhesive into the hot melt adhesive bin, and turn on the heating device II on the inner wall of the hot melt adhesive delivery sleeve and the inner wall of the hot melt adhesive bin through the control component to melt the hot melt adhesive; Step 3: Put the nut on the nut nesting part and make the pressure cover close to the I-beam; Step 4: Open the pressurizing device and press the liquid hot melt adhesive from the hot melt adhesive tank into the delivery sleeve, and then press it into the gap between the bolt and the component until it covers the nut, and close the pressurizing device; Step 5: Wait until the hot melt adhesive has not cooled and solidified, open the nut and tighten the main body to tighten the nut. After the hot melt adhesive cools down quickly, close the matching nut gun to complete the installation; The method for disassembling the hot melt adhesive connector comprises: Step 1: Turn on the heating device II of the nut gun to melt the hot melt adhesive remaining in the gun, turn on the pressurizing device to squeeze out the hot melt adhesive, turn off the heating device II, and turn off the pressurizing device; Step 2: Put the nut on the nut nesting part and make the pressure cover close to the I-beam; Step 3: Turn on the heating device I of the nut tightening body to heat the screw, and melt the solid hot melt adhesive around the bolt through the thermal conductivity of the screw; Step 4: After the hot melt adhesive is completely melted, open the nut, tighten the main body, loosen the nut, open the pressurizing device to blow out the hot melt adhesive in the hole, and close the pressurizing device; Step 5: Remove the nuts, take out the bolts, close the matching nut gun, and complete the disassembly.

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