Fastening device capable of freely floating

Abstract

The utility model discloses a fastening device capable of floating freely, and relates to the technical field of floating nuts. The device comprises a shell, a nut movable block assembly and a limiting plate, the nut movable block assembly is installed in an interlayer between the shell and the limiting plate, the nut movable block assembly freely moves in a closed interlayer space formed by the shell and the limiting plate, a first movable hole is formed in the shell, and a second movable hole is formed in the limiting plate. The center of the first movable hole is aligned with the center of the second movable hole, an outer mounting hole is formed in the side face of the shell, an inner mounting hole matched with the outer mounting hole is formed in the side face of the limiting plate, and the shell and the limiting plate are fixedly connected in the mode that a rivet nut assembly penetrates through the outer mounting hole and the inner mounting hole. The nut movable block assembly is composed of a nut and a movable block, and the nut is in clearance fit with the second movable hole. The utility model has the advantages of self-locking and looseness prevention, large floating range, good corrosion resistance, high reliability, simplicity and convenience in processing of the fastening device, and suitability for multiple application scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to floating nut technical field, concretely relates to a fastening device that can freely float. BACKGROUND

[0002] Floating nut is a kind of combined nut applied to sheet or sheet metal, with high-strength thread fastening effect.It is circular in appearance, inlayed with a nut inside, can float after combination, and the shell one end is provided with embossed teeth and guide groove, through the embossed teeth is pressed into the pre-placed hole of sheet metal, the embossed teeth of floating nut are extruded into the plate by pressure, the plastic deformation of the hole periphery is generated, the deformation is extruded into the guide groove, thereby the locking effect is generated.

[0003] At present, there are mainly four kinds of floating nuts on the market, which are quick cutting steel ASLAS type, stainless steel ACLAC type, self-locking nut LAC, LAS type, non-self-locking nut AC, AS type, and their installation mode usually needs to use special tools to put them into the pre-punched square hole, then withdraws and repositions, or is fixed obliquely.In practical application, floating nut can be pressed into the pre-placed hole of sheet metal through the embossed teeth outside, and the hole diameter of pre-placed hole is usually slightly smaller than the embossed teeth of press-in nut, and floating nut is fixed by pressure.This installation mode causes the floating range of floating nut to be small, and the reliability is not high, and the four kinds of floating nuts have the following shortcomings: either the floating range is small, or the corrosion resistance is poor, or the processing is troublesome, or the reliability is not high, is easily damaged, and cannot meet the use requirements.

[0004] In order to solve the above problems, it is particularly necessary to design a new type of fastening device that can freely float. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a fastening device that can freely float, which is simple in structure, reasonable in design, simple in processing, can be self-locked and anti-loose, has large floating range, good corrosion resistance, high reliability, is suitable for many application scenarios and easy to popularize and use.

[0006] In order to achieve the above object, the utility model is through the following technical scheme to realize: a fastening device of free floating, including shell, nut movable block assembly and limit board, nut movable block assembly is installed in the interlayer of shell and limit board, nut movable block assembly freely moves in the closed interlayer space formed by shell and limit board, first movable hole is provided on the shell, second movable hole is provided on the limit board, first movable hole and second movable hole center alignment, the side of shell is provided with outer installation hole, the side of limit board is provided with inner installation hole matched with outer installation hole, shell and limit board are fixedly connected through pull rivet nut assembly through outer installation hole, inner installation hole, nut movable block assembly is composed of nut and movable block, and the nut is matched with the second movable hole gap.

[0007] As preferred, the nut is fixed on the movable block through welding or riveting process, and the size of the nut is freely adjusted according to the use requirement.

[0008] As preferred, the both ends of the shell are provided with device installation holes facilitating the overall fixation of the fastening device.

[0009] As preferred, the shell is a stainless steel shell, the nut movable block assembly is a stainless steel assembly, the limit board is a stainless steel plate, and the overall device adopts stainless steel material, so that the corrosion resistance is improved.

[0010] The utility model discloses the beneficial effects: the device can be self-locked and anti-loose, the floating range is big, the corrosion resistance is good, the reliability is high, the fastening device is simple to process, and the application scene is suitable, and the application prospect is wide. DRAWINGS

[0011] The utility model will be described in detail below in combination with the drawings and specific embodiment;

[0012] Figure 1 It is the exploded structure schematic diagram of the utility model;

[0013] Figure 2 It is the three-dimensional structure schematic diagram of the utility model;

[0014] Figure 3 It is the plane structure schematic diagram of the utility model;

[0015] Figure 4 It is Figure 3 The top view of the utility model;

[0016] Figure 5 It is Figure 3 The bottom view of the utility model;

[0017] Figure 6 It is Figure 3 The left view of the utility model;

[0018] Figure 7It is the three-dimensional structure schematic view of the shell of the utility model;

[0019] Figure 8 It is the plane structure schematic view of the shell of the utility model;

[0020] Figure 9 It is Figure 8 the top view;

[0021] Figure 10 It is Figure 8 the left view;

[0022] Figure 11 It is the three-dimensional structure schematic view of the nut movable block assembly of the utility model;

[0023] Figure 12 It is the plane structure schematic view of the nut movable block assembly of the utility model;

[0024] Figure 13 It is Figure 12 the left view;

[0025] Figure 14 It is the three-dimensional structure schematic view of the limiting plate of the utility model;

[0026] Figure 15 It is the plane structure schematic view of the limiting plate of the utility model;

[0027] Figure 16 It is Figure 15 the left view;

[0028] Figure 17 It is Figure 15 the top view. Specific implementation

[0029] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific implementation.

[0030] Refer to Figures 1-17The embodiment adopts the following technical scheme: a freely floating fastening device, comprising a shell 1, a nut movable block assembly 2 and a limiting plate 3, the nut movable block assembly 2 is installed in the interlayer of the shell 1 and the limiting plate 3, the shell 1 is provided with a first movable hole 4, the limiting plate 3 is provided with a second movable hole 5, the first movable hole 4 and the second movable hole 5 are centrally aligned, the side surface of the shell 1 is provided with an outer mounting hole 6, the side surface of the limiting plate 3 is provided with an inner mounting hole 7 matched with the outer mounting hole 5, the shell 1 and the limiting plate 3 are fixedly connected through a pull rivet nut assembly 8 passing through the outer mounting hole 6 and the inner mounting hole 7, the shell 1 and the limiting plate 3 are assembled in a pull rivet manner, the assembly is simple and cost-saving.

[0031] It is worth noting that the shell 1 is a stainless steel shell, the nut movable block assembly 2 is a stainless steel assembly, the limiting plate 3 is a stainless steel plate, and the device as a whole adopts a stainless steel material, thereby improving corrosion resistance.

[0032] In addition, the shell 1 is provided with a device mounting hole 9 at both ends, and the device mounting hole 9 facilitates fixing the whole fastening device.

[0033] The embodiment is composed of the shell 1, the nut movable block assembly 2 and the limiting plate 3, wherein the nut movable block assembly 2 is limited in the closed interlayer space formed by the shell 1 and the limiting plate 3, and the nut movable block assembly 2 can freely move in the closed space. The size range of the first movable hole 4 on the shell 1 is the movable range of the fastening screw, that is, the matching range of the mounting hole, and the size of the first movable hole 4 can be freely adjusted according to requirements; similarly, the second movable hole 5 on the limiting plate 3 is centrally aligned with the first movable hole 4, and the size range of the second movable hole 5 is the movable range of the nut 2-1 on the nut movable block assembly 2, and the nut 2-1 and the second movable hole 5 belong to clearance fit, and the size of the second movable hole 5 can be freely adjusted according to requirements.

[0034] The installation height of the embodiment is determined by the shell, and the height of the shell can be automatically adjusted according to requirements, so that the device is suitable for more application scenarios. Meanwhile, the device has a self-locking function, and the size of at least one side of the movable block is greater than the length or width of the closed space to meet the self-locking requirement. Compared with the floating nut on the market, the device effectively solves the installation error of the matching hole in the assembly process, compensates for the installation error of the matching hole, avoids the misalignment of the threaded hole and the mounting hole to cause installation failure, and has a wider market application prospect.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A free-floating fastening device, characterized in that The utility model relates to a kind of nut movable block assemblies, including shell (1), nut movable block assembly (2) and limiting plate (3), nut movable block assembly (2) is installed in the interlayer of shell (1) and limiting plate (3), nut movable block assembly (2) is freely movable in the closed interlayer space formed by shell (1) and limiting plate (3), the first movable hole (4) is provided on the shell (1), the second movable hole (5) is provided on limiting plate (3), the first movable hole (4) and the second movable hole (5) center alignment, the side of shell (1) is provided with outer mounting hole (6), the side of limiting plate (3) is provided with inner mounting hole (7) matched with outer mounting hole (6), and shell (1) and limiting plate (3) are fixedly connected by pull rivet nut assembly (8) through outer mounting hole (6), inner mounting hole (7);The nut movable block assembly (2) is composed of nut (2-1) and movable block (2-2), and nut (2-1) is gap fit with the second movable hole (5).

2. A free-floating fastening device according to claim 1, wherein The nut (2-1) is welded and fixed on the movable block (2-2).

3. A free-floating fastening device according to claim 1, wherein The nut (2-1) is rivet fixed on the movable block (2-2).

4. A free-floating fastening device according to claim 1, wherein The shell (1) is a stainless steel shell, the nut movable block assembly (2) is a stainless steel assembly, and the limiting plate (3) is a stainless steel plate.

5. A free-floating fastening device according to claim 1, wherein The shell (1) is provided with device mounting hole (9) at both ends to facilitate the overall fixation of the fastening device.

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