Leading-in type fixing device

Abstract

The utility model relates to a lead-in type fixing device which is suitable for being installed on a connecting plate and comprises a gasket, two lead-in supports, a bolt and a fixing nut. One ends of the two leading-in supports are fixedly connected with the gasket, the other ends of the two leading-in supports are connected with the fixing nut, and the fixing nut is rotatably arranged between the two leading-in supports; deformation blades are arranged on the sides, facing the fixing nuts, of the gaskets; the bolt is sleeved with the gasket, a preset gap is formed between the bolt and the gasket, guide slopes are arranged on the two sides, adjacent to the guide-in support, of the fixing nut, and a preset angle is formed between the guide slopes and the body length direction of the fixing nut. When the bolt moves in the direction towards the fixing nut, the bolt pushes the fixing nut to rotate through the guide slope. The fixing nut is provided with a threaded hole matched with the bolt, the threaded hole is located between the two guide slopes, and when the threaded hole is opposite to the bolt, the bolt can penetrate into the threaded hole.

Description

Technical Field

[0001] This application relates to the field of bolt technology, and more particularly to an insert-type fixing device. Background Technology

[0002] In the existing field of connection and fixing, connecting plates often have a closed structure. This structure makes it difficult for nuts and wrenches to enter the connecting plate to fix the bolts. Existing technology usually uses self-tapping screws to fix the bolts to the connecting plate. Self-tapping screws achieve fixation by tapping threaded holes in the connecting plate with their own threads. If the wall thickness of the connecting plate is thin, the thin connecting plate cannot provide enough support area for the self-tapping screw. When the self-tapping screw is subjected to external force, it is easy to loosen or fall off. Summary of the Invention

[0003] In view of this, this application proposes an inlet-type fixing device suitable for installation on a connecting plate, characterized in that it includes: a washer, two inlet brackets, a bolt, and a fixing nut;

[0004] The two inlet brackets are parallel to each other in the length direction. One end of each inlet bracket is fixedly connected to a washer, and the other end of each inlet bracket is connected to a fixing nut. The fixing nut is rotatably set between the two inlet brackets.

[0005] The washer also has deformable blades on the side facing the fixing nut;

[0006] The washer is fitted onto the bolt, and there is a preset gap between the bolt and the washer so that the bolt can move inside the washer in a direction toward or away from the fixing nut;

[0007] The fixing nut and the guide bracket are provided with guide slopes on both sides. The guide slopes are provided with a preset angle between them and the length direction of the fixing nut. This is suitable for the bolt to push the fixing nut to rotate through the guide slopes when the bolt moves in the direction toward the fixing nut.

[0008] The fixing nut has a threaded hole that matches the bolt, and the threaded hole is located between two guide slopes. When the threaded hole is opposite to the bolt, the bolt can pass through the threaded hole.

[0009] In one possible implementation, the preset angle is 45°.

[0010] In one possible implementation, two deformable blades are provided;

[0011] The two deformable blades are arranged opposite each other.

[0012] In one possible implementation, the preset gap value is 1.5mm.

[0013] In one possible implementation, the washer, inlet bracket, and deformable leaf are designed as a single unit.

[0014] Beneficial effects of this application

[0015] The guide ramp of the fixing nut converts the force of the bolt into a rotational torque, making the axial direction of the adjusting thread hole of the fixing nut coaxial with the bolt axis. This ensures that the bolt can accurately enter the fixing nut connection. The guide bracket, deformable blade, and fixing nut cooperate with each other to increase the contact area between the bolt and the connecting plate, avoiding the risk of bolt loosening and falling off due to insufficient support area of ​​the connecting plate. This ensures that the guide-type fixing device of this application is firmly fixed to the connecting plate. The operator only needs to push the fixing nut to rotate after passing the bolt through the washer so that the thread hole of the fixing nut is coaxial with the bolt. Then, the installation operation can be easily completed by tightening the bolt. This reduces the skill level required of the operator and the complexity of the operation, improves the installation efficiency, and is especially suitable for installation environments with limited space and inconvenient operation.

[0016] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0018] Figure 1 A side view of the imported fixing device of this application is shown;

[0019] Figure 2 This diagram shows the main structure of the imported fixing device of this application;

[0020] Figure 3 This diagram shows the structure of the imported fixing device during installation.

[0021] Figure 4 This diagram shows the structure of the imported fixing device before installation.

[0022] Figure 5 This diagram shows the structure of the imported fixing device during installation.

[0023] Figure 6 This application shows a schematic diagram of the structure in which the bolt drives the fixing nut to rotate.

[0024] Figure 7 This diagram shows the structural connection between the bolt and the fixing nut after rotation into place.

[0025] Figure 8This diagram shows the structure of the imported fixing device after installation. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0030] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0031] This application proposes an inlet-type fixing device, such as Figures 1 to 8As shown, this assembly, suitable for installation on a connecting plate 400, includes: a washer 300, two guide brackets 310, a bolt 100, and a fixing nut 200. The two guide brackets 310 are parallel to each other in their length direction. One end of each guide bracket 310 is fixedly connected to the washer 300, and the other end of each guide bracket 310 passes through the connecting plate 400 and is connected to the fixing nut 200. The fixing nut 200 is rotatably disposed between the two guide brackets 310. The washer 300 also has a deformable blade 320 on the side facing the fixing nut 200. The washer 300 is fitted onto the bolt 100, and a preset gap is provided between the bolt 100 and the washer 300 to allow the bolt to... Bolt 100 can move within washer 300 in a direction toward or away from fixed nut 200; both sides of fixed nut 200 adjacent to guide bracket 310 are provided with guide slope 210, and a preset angle is provided between guide slope 210 and fixed nut 200 in the body length direction, which is suitable for bolt 100 to push fixed nut 200 to rotate through guide slope 210 when bolt 100 moves in a direction toward fixed nut 200; fixed nut 200 is provided with threaded hole 220 matching bolt 100, and threaded hole 220 is located between two guide slope 210. When threaded hole 220 is opposite to bolt 100, bolt 100 can pass into threaded hole 220.

[0032] It should be noted that washer 300 is used to increase the contact area between bolt 100 and connecting plate 400, disperse the pressure of bolt 100 on connecting plate 400, and avoid local damage to connecting plate 400 caused by concentrated pressure when bolt 100 is tightened. Two parallel guide brackets 310 provide stable support for fixing nut 200, ensuring smooth rotation of fixing nut 200 between the two guide brackets 310. Deformable blade 320 is used to increase the contact area between bolt 100 and connecting plate 400. Both sides of fixing nut 200 are provided with guide ramps 210, which can guide bolt 100 to push fixing nut 200 to rotate in a predetermined direction. The preset gap design allows bolt 100 to pass through washer 300. The bolt 100 moves toward or away from the fixing nut 200. When the bolt 100 passes through the washer 300 and abuts against the guide slope 210 of the fixing nut 200, the guide slope 210 converts the force of the bolt 100 into a rotational torque, causing the fixing nut 200 to rotate. The rotating fixing nut 200 will gradually adjust the axial direction of its threaded hole 220, so that when the axis of the threaded hole 220 on the fixing nut 200 is coaxial with the axis of the bolt 100, the bolt 100 can pass through the threaded hole 220 and be threadedly connected to the fixing nut 200. The preset angle design allows the guide slope 210 to adaptively adjust the pushing direction of the bolt 100 within a certain range, ensuring that the fixing nut 200 rotates and adjusts the axial direction of the threaded hole 220 to be coaxial with the axis of the bolt 100.

[0033] Furthermore, the guide bracket 310 and the deformable blade 320 are both made of galvanized thin steel sheet material.

[0034] like Figures 4 to 8 As shown, during installation, as Figure 4 As shown, the length of the fixing nut 200 is adjusted to be parallel to the length of the guide bracket 310. The guide bracket 310 clamps the fixing nut 200 and passes it through the mounting hole on the connecting plate 400 into the interior of the connecting plate 400, as shown. Figure 5 , Figure 6 As shown, bolt 100 passes through washer 300 and abuts against guide ramp 210 of fixing nut 200. Guide ramp 210 converts the force of bolt 100 into rotational torque, causing fixing nut 200 to rotate until the axis of threaded hole 220 on fixing nut 200 is coaxial with the axis of bolt 100. Figure 7 , Figure 8 As shown, by tightening the bolt 100, the fixing nut 200 moves along the axial direction of the bolt 100 toward the connecting plate 400. The pressure generated by the threaded engagement between the bolt 100 and the fixing nut 200 causes the guide bracket 310 and the deformable blade 320 to deform. This results in the deformed guide bracket 310, the deformed blade 320, the fixing nut 200, and the connecting plate 400 fitting tightly together. The washer 300 also fits tightly together with the connecting plate 400, and is located on the side of the connecting plate 400 away from the fixing nut 200. Figure 8 In the state of the connection, the design of the washer 300, the guide bracket 310, the deformable blade 320 and the fixing nut 200 working together increases the contact area between the bolt 100 and the connecting plate 400, effectively preventing the bolt 100 from loosening or falling off when subjected to external force, and ensuring the firmness of the connection.

[0035] Compared with the existing self-tapping screw 100, the guide slope 210 of the fixing nut 200 converts the force of the bolt 100 into rotational torque, making the axial direction of the adjusting thread hole 220 of the fixing nut 200 coaxial with the axis of the bolt 100. This ensures that the bolt 100 can accurately enter the fixing nut 200 for connection. The guide bracket 310, the deformable blade 320 and the fixing nut 200 cooperate with each other to increase the contact area between the bolt 100 and the connecting plate 400, avoiding the risk of the bolt 100 loosening and falling off due to insufficient support area of ​​the connecting plate 400. This ensures that the guide-type fixing device of this application is firmly fixed on the connecting plate 400. The operator only needs to push the fixing nut 200 to rotate after passing the bolt 100 through the washer 300 so that the thread hole 220 of the fixing nut 200 is coaxial with the bolt 100. Then, the installation operation can be easily completed by tightening the bolt 100. This reduces the skill level requirements of the operator and the complexity of the operation, improves the installation efficiency, and is especially suitable for installation environments with limited space and inconvenient operation.

[0036] Furthermore, such as Figure 2 As shown, the main body of the fixing nut 200 is a rectangular block structure. The fixing nut 200 and the guide bracket 310 are provided with shaft holes on their adjacent sides, and the two shaft holes are arranged opposite each other. Correspondingly, the two guide brackets 310 are provided with a rotating shaft (not shown in the figure) on the side facing the fixing nut 200. The two guide brackets 310 are clamped on the opposite sides of the fixing nut 200, and the rotating shafts of the two guide brackets 310 are inserted into the shaft holes, thereby realizing the rotational connection of the fixing nut 200 relative to the guide bracket 310.

[0037] Furthermore, such as Figure 2 As shown, the length direction of the deformable blade 320 is parallel to the length direction of the guide bracket 310, and one end of the deformable blade 320 is fixedly connected to the washer 300.

[0038] In one possible implementation, the preset angle is 45°.

[0039] In one possible implementation, such as Figure 1 , Figure 2 As shown, there are two deformable blades 320; the two deformable blades 320 are arranged opposite each other, and the two oppositely arranged deformable blades 320 further increase the contact area between the bolt 100 and the connecting plate 400, and further strengthen the firmness of the connection between the bolt 100 and the connecting plate 400.

[0040] In one possible implementation, such as Figure 1As shown, a preset distance is provided between the two deformable blades 320. This preset distance is greater than the diameter of the bolt 100 but less than the length of the fixing nut 200. It should be noted that the preset distance being greater than the diameter of the bolt 100 provides sufficient space for its installation, allowing it to pass smoothly through the area between the two deformable blades 320 and connect with the fixing nut 200. Operators can quickly complete the connection without forcing the bolt 100 into the fixing nut 200, significantly improving installation efficiency. The preset distance being less than the length of the fixing nut 200 ensures that the nut can transmit pressure to the deformable blades 320. When the bolt 100 passes through the deformable blades 320 and connects with the fixing nut 200, the blades will deform under pressure due to the preset distance being less than the length of the fixing nut 200, further ensuring the reliability of the connection between the bolt 100 and the connecting plate 400.

[0041] In one possible implementation, such as Figure 2 As shown, the two inlet brackets 310 and the two deformable blades 320 are all distributed along the circumference of the washer 300.

[0042] In one possible implementation, the preset gap value is 1.5mm.

[0043] In one possible implementation, the body of gasket 300 is a hollow, circular sheet structure, and gasket 300 is made of galvanized thin steel sheet material.

[0044] In one possible implementation, the washer 300, the guide bracket 310, and the deformable blade 320 are integrally molded. It should be noted that the washer 300, the guide bracket 310, and the deformable blade 320 are pressed from the same galvanized thin steel sheet.

[0045] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An inlet-type fixing device, suitable for installation on a connecting plate, characterized in that, include: Washers, two guide brackets, bolts, and retaining nuts; The two inlet brackets are parallel to each other in the length direction. One end of each inlet bracket is fixedly connected to the washer, and the other end of each inlet bracket is connected to the fixing nut. The fixing nut is rotatably disposed between the two inlet brackets. The washer is also provided with deformable blades on the side facing the fixing nut; The washer is fitted onto the bolt, and a preset gap is provided between the bolt and the washer so that the bolt can move within the washer in a direction toward or away from the fixing nut. The fixing nut and the guide bracket are provided with guide slopes on both sides. The guide slopes are provided with a preset angle between them and the length direction of the fixing nut. This is suitable for the bolt to push the fixing nut to rotate through the guide slopes when the bolt moves in the direction toward the fixing nut. The fixing nut has a threaded hole that matches the bolt, and the threaded hole is located between the two guide slopes. When the threaded hole is opposite to the bolt, the bolt can pass through the threaded hole.

2. The insertion-type fixing device according to claim 1, characterized in that, The preset angle is 45°.

3. The insertion-type fixing device according to claim 1, characterized in that, The deformable blade is provided in two parts; The two deformable blades are arranged opposite each other.

4. The insertion-type fixing device according to claim 1, characterized in that, The preset gap is 1.5mm.

5. The insertion-type fixing device according to claim 1, characterized in that, The washer, the inlet bracket, and the deformable leaf are integrally molded.

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