Floating nut

Abstract

The utility model discloses a floating nut which comprises a nut body and a nut seat with a cavity inside, and the nut body is embedded in the inner cavity of the nut seat. The nut body comprises a square part at the head part and a cylindrical part clamped in an inner cavity of the nut seat; a through internal thread is arranged in the middle of the nut body; a first annular flange protruding outwards is arranged in the middle of the outer face of the nut seat, a knurling tooth portion with the outer diameter smaller than that of the first flange is arranged on the front portion of the first flange, a second flange with the outer diameter smaller than that of the knurling tooth portion is arranged on the foremost portion of the outer face of the nut seat, and an annular groove is formed between the second flange and the knurling tooth portion. After the floating nut and the sheet metal part are riveted, the floating nut and the sheet metal part are not prone to slipping or rebounding and are clamped firmly, meanwhile, a containing space is formed when an inner hole of the sheet metal part is riveted and deformed, local arching cannot be caused, stacking of a second sheet metal part behind cannot be affected, and smooth connection is kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of nuts, and in particular relates to a floating nut. Background Art

[0002] The floating nut is a combination nut used on thin plates or sheet metals. It is round in shape and has a nut embedded inside. It can float after being assembled. One end of the shell or nut seat has embossed teeth and guide grooves. The principle is to press the embossed teeth into the preset holes of the sheet metal. Generally speaking, the aperture of the preset hole is slightly smaller than the embossed teeth of the rivet nut, and the pressure is used to prevent the floating nut thread from wearing and loosening. The current floating nut shell design is relatively simple. After the first sheet metal is riveted, there will be problems such as slippage, rebound, or loose clamping, which will cause the screws of the other sheet metal behind to be tightened and connected, and there will be problems of local deformation or unevenness. Utility Model Content

[0003] The utility model aims to solve the above-mentioned problem and provide a floating nut. The design on the shell makes it difficult for it to slip off or rebound after the first sheet metal part is riveted, and the clamping connection is firm, so that the final connection of the sheet metal parts is smoother.

[0004] The utility model is realized through the following technical solutions.

[0005] A floating nut, comprising a nut body and a nut seat with an internal cavity, wherein the nut body is embedded in the internal cavity of the nut seat; it is characterized in that: the nut body comprises a square portion of the head and a cylindrical portion stuck in the internal cavity of the nut seat; a penetrating internal thread is provided in the middle of the nut body; a first flange protruding outward in a ring shape is provided in the middle of the outer surface of the nut seat, and an embossed tooth portion with an outer diameter smaller than the first flange is provided at the front of the first flange; a second flange with an outer diameter smaller than the first embossed tooth portion is provided at the frontmost part of the outer surface of the nut seat, and an annular groove is provided between the second flange and the embossed tooth portion; a riveted portion for preventing the tail of the nut body from slipping out is provided at the rearmost part of the outer surface of the nut seat; and a redundant space for the nut body to move axially along the internal thread is provided in the internal cavity of the nut seat.

[0006] Furthermore, the four corners of the square portion of the nut body are provided with arcuate portions protruding outward, and correspondingly, the nut seat is provided with grooves of corresponding shapes.

[0007] Furthermore, the annular groove is provided with a frustum shape transitioning toward the second flange.

[0008] Furthermore, when the nut body moves toward the second flange to the closest position, the end surface of the square portion is flush with the end surface of the second flange.

[0009] The beneficial effects of the utility model are as follows: the design of the second flange, the first flange, the embossed tooth portion and the annular groove on the outside of the floating nut of the utility model makes it difficult for the first sheet metal part to slip off or rebound after riveting, and the clamping is firm. At the same time, there is accommodation space when the inner hole of the sheet metal part is deformed by riveting, which will not cause local arching and affect the stacking of the second sheet metal part behind, and maintain a flat connection; the design of the arc surface portion with four corners protruding outward on the square portion of the nut body makes the axial movement of the nut body in the nut seat smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of an embodiment of the utility model.

[0011] Figure 2 It is a three-dimensional structural diagram of an embodiment of the utility model.

[0012] Figure 3 It is a side view of an embodiment of the utility model.

[0013] In the figure, 1, nut seat, 2, nut body, 11, first flange, 12, embossed tooth portion, 13, annular groove, 14, second flange, 15, riveted portion, 21, square portion, 22, internal thread, 23, arc portion. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0015] like Figure 1-Figure 3As shown, a floating nut comprises a nut body 2 and a nut seat 1 with an internal cavity, wherein the nut body 2 is embedded in the internal cavity of the nut seat 1; the nut body 2 comprises a square portion 21 of the head and a cylindrical portion (internal structure not shown) stuck in the internal cavity of the nut seat 1; a through internal thread 22 is provided in the middle of the nut body 2; the four corners of the square portion 21 of the nut body 2 are provided with arcuate portions 23 protruding outwards, and correspondingly, the nut seat 1 is provided with a groove of corresponding shape. A first flange 11 protruding outwards in an annular shape is provided in the middle of the outer surface of the nut seat 1, and an embossed tooth portion 12 having an outer diameter smaller than that of the first flange 1 is provided in the front of the first flange 11, and a second flange 14 having an outer diameter smaller than that of the first embossed tooth portion 12 is provided at the front of the outer surface of the nut seat 1, and an annular groove 13 is provided between the second flange 14 and the embossed tooth portion 12, and the annular groove 13 is provided with a frustum shape transitioning toward the second flange 14. The rear end of the outer surface of the nut seat 1 is provided with a riveting portion 15 for preventing the tail of the nut body 2 from sliding out; the inner cavity of the nut seat 1 is provided with a redundant space for the nut body 2 to move axially along the internal thread 22. When the nut body 2 moves to the closest position toward the second flange 14, the end surface of the square portion 21 is flush with the end surface of the second flange 14. (Note: The front and rear position relationship described above is for the attached manual Figure 1 as a reference positional relationship).

[0016] When the floating nut of the utility model is used, the first sheet metal is first inserted into the upper surface of the first flange 11 from the direction of the second flange 14, and then riveted. During the riveting process, the deformation of the inner hole of the sheet metal will be squeezed toward the embossed tooth portion 12 and the annular groove 13. The design of the annular groove 13 allows for accommodation space when the inner hole of the sheet metal is deformed, and will not cause local arching to affect the stacking of the second sheet metal behind it, maintaining a flat connection. The riveted portion 15 at the rear prevents the nut body 2 from sliding out, making it more convenient to use. The square hole in the middle prevents the entire nut body 2 from rotating during threaded connection, transmits pressure to the nut seat 1, and together with the nut seat 1, presses the sheet metal to complete the fixation of the two sheet metals.

[0017] The above embodiments are only preferred implementation modes of the present invention and are only used to explain the present invention rather than to limit the present invention. Any changes, substitutions, combinations, simplifications, modifications, etc. made by those skilled in the art without departing from the spirit and principles of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A floating nut, comprising a nut body and a nut seat with an internal cavity, wherein the nut body is embedded in the internal cavity of the nut seat; characterized in that: The nut body includes a square portion of the head and a cylindrical portion stuck in the internal cavity of the nut seat; a penetrating internal thread is provided in the middle of the nut body; a first flange protruding outward in a ring shape is provided in the middle of the outer surface of the nut seat, and an embossed tooth portion with an outer diameter smaller than the first flange is provided at the front of the first flange; a second flange with an outer diameter smaller than the first embossed tooth portion is provided at the frontmost part of the outer surface of the nut seat, and an annular groove is provided between the second flange and the embossed tooth portion; a riveted portion for preventing the tail of the nut body from slipping out is provided at the rearmost part of the outer surface of the nut seat; and a redundant space for the nut body to move axially along the internal thread is provided in the internal cavity of the nut seat.

2. The floating nut according to claim 1, characterized in that: The four corners of the square portion of the nut body are provided with arcuate portions protruding outward, and correspondingly, the nut seat is provided with grooves of corresponding shapes.

3. The floating nut according to claim 1, characterized in that: The annular groove is provided with a frustum shape transitioning toward the second flange.

4. The floating nut according to claim 1, characterized in that: When the nut body moves toward the second flange to the closest position, the end surface of the square portion is flush with the end surface of the second flange.

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