Flange nut

Abstract

The utility model relates to the technical field of nuts, and discloses a flange nut which comprises a nut body and a screw hole formed in the nut body, the flange nut further comprises a gasket ring fixed to an opening in one end of the screw hole, and a concave part is arranged on the end face of the end, away from the nut body, of the gasket ring. According to the utility model, the area of the side wall of the concave part can be larger than that when the end face of the cushioning ring is designed to be a plane, so that static friction can be generated between the side wall of the concave part and a fixed object in a large area, and the fixing stability is high; according to the flange nut in the scheme, the thread of the screw hole and the thread on the screw can be tightly connected in an abutting mode, even thread deformation occurs, the installed flange nut is not prone to rotating, and the fixing stability degree of a fixed object can be effectively enhanced; on the basis that the installation stability of the flange nut is improved, the flange nut has the advantage of being simple in structure, free of redundant components and low in production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field, concretely relates to flange nut. BACKGROUND

[0002] The flange nut is a kind of nut with wide flange, usually used in pipeline connection or the workpiece needing to increase nut contact surface.It is also called pad nut, flower tooth nut, hexagonal flange nut or flange nut cap etc.The flange nut has good sealing property and corrosion resistance in mechanical connection.

[0003] Chinese invention patent with the publication number CN108757704A: a kind of anti-loose flange nut, discloses by nut body, inner tooth washer composition;Anti-loose flange nut is rotated by itself, cooperates the contact surface of fastening part, the inner tooth of inner tooth washer is compressed deformation and is clamped in bolt thread groove, increases the screw rod of bolt and the close degree of nut contact, the extrusion force of each other, so as to improve the friction of nut and bolt, the technical scheme of anti-loose effect.

[0004] The above-mentioned patent has the technical features of anti-loose, but the structure is complex, so the flange nut is needed in the prior art to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing flange nut to solve the technical problem of complex structure of flange nut with anti-loose function in prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] Flange nut, including nut body and the screw hole being set in the inside of nut body, flange nut further includes the pad ring being fixed at the opening of one end of screw hole, the slot is set on the pad ring along the axial direction of screw hole, the slot penetrates the end face of pad ring away from the one end of nut body, recess is arranged on the end face of pad ring away from the one end of nut body.

[0008] As preferred scheme, at least 2 are arranged in the form of annular array along the axial line of screw hole.

[0009] As preferred scheme, the slot is arranged with 2.

[0010] As preferred scheme, the pad ring is integrally formed with the nut body.

[0011] As preferred scheme, recess side wall is straight under vertical cross-section view.

[0012] As preferred scheme, the end of screw hole is provided with chamfer, and the screw is convenient to pass through the screw hole.

[0013] As a preferred solution, the angle θ between the side wall of the recess and the horizontal plane is ≤15°, and the small angle can make the side wall of the recess easily adhere to the surface of the fixed object after the gasket ring is pressed and deformed.

[0014] As a preferred solution, the angle θ between the side wall of the recess and the horizontal plane is 8°, which can avoid excessive deformation of the gasket ring, make the deformed gasket ring have a deformation recovery force, apply the deformation recovery force to the surface of the fixed object, make the flange nut have a driving force moving away from the fixed object, and further make the threads of the screw hole and the threads on the screw tightly abut each other, even deform the threads, so that the installed flange nut is not easy to rotate, and the fixing stability of the fixed object can be effectively enhanced.

[0015] When the flange nut is used, the screw rod of the screw penetrates the fixed object, the flange nut is screwed onto the screw, and the fixed object is located between the limiting end of the screw and the flange nut; during the locking of the flange nut, the distance between the flange nut and the fixed object gradually decreases, the slot is expanded by the reaction force of the fixed object, and the side wall of the recess is tightly adhered to the fixed object. Since the recess is a slope relative to the plane where the end of the gasket ring is located, the area of the side wall of the recess can be larger than that when the end face of the gasket ring is designed as a plane, and then a large area of static friction can be generated between the side wall of the recess and the fixed object, and the fixing stability is high.

[0016] Advantages:

[0017] 1. In the utility model, the area of the side wall of the recess can be larger than that when the end face of the gasket ring is designed as a plane, and then a large area of static friction can be generated between the side wall of the recess and the fixed object, and the fixing stability is high.

[0018] 2. The flange nut of the utility model can avoid excessive deformation of the gasket ring, make the deformed gasket ring have a deformation recovery force, apply the deformation recovery force to the surface of the fixed object, make the flange nut have a driving force moving away from the fixed object, and further make the threads of the screw hole and the threads on the screw tightly abut each other, even deform the threads, so that the installed flange nut is not easy to rotate, and the fixing stability of the fixed object can be effectively enhanced.

[0019] 3. The scheme has the advantages of simple structure, no redundant parts, and low production cost on the basis of improving the installation stability of the flange nut. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the technical personnel in the art better understand the technical scheme of the present application, the following will be further described in detail with reference to the drawings.

[0021] Figure 1 The overall structure schematic view provided for the embodiment 1 of the present application is shown in the figure.

[0022] Figure 2 The right view perspective view provided for the embodiment 1 of the present application is shown in the figure.

[0023] The figure mark explanation is as follows:

[0024] 101, nut main body; 102, pad ring; 103, screw hole; 104, notch; 105, recess. Specific implementation

[0025] In order to make the technical personnel in the art better understand the technical scheme of the present application, the following will be further described in detail with reference to the drawings.

[0026] As shown in the figure, Figures 1-2 The flange nut provided by the embodiment of the present application comprises a nut main body 101 and a screw hole 103 arranged inside the nut main body 101, and is characterized in that: the flange nut further comprises a pad ring 102 fixed at one end of the screw hole 103, a notch 104 is arranged on the pad ring 102 along the axis direction of the screw hole 103, the notch 104 penetrates through the end face of the pad ring 102 away from the nut main body 101, and a recess 105 is arranged on the end face of the pad ring 102 away from the nut main body 101.

[0027] With the screw hole 103 axis as the reference, the notch 104 is arranged in a ring array with two.

[0028] The pad ring 102 is integrally formed with the nut main body 101.

[0029] As shown in the figure, Figure 2 Under the vertical cross-sectional view, the side wall of the recess 105 is flat.

[0030] The end part of the screw hole 103 is provided with a chamfer, which is convenient for the screw to pass through the screw hole 103.

[0031] The angle θ between the side wall of the recess 105 and the horizontal plane is 8°, which can ensure that the side wall of the recess 105 easily fits the surface of the fixed object, avoid excessive deformation of the gasket ring 102, and make the deformed gasket ring 102 have a deformation recovery force. The deformation recovery force is applied to the surface of the fixed object, so that the flange nut has a driving force to move away from the fixed object, and the threads of the screw hole 103 and the threads on the screw are tightly abutted with each other, even the threads are deformed, so that the installed flange nut is not easy to rotate, and the fixing stability of the fixed object can be effectively enhanced.

[0032] When the flange nut is used, the screw rod of the screw penetrates the fixed object, and the flange nut is screwed onto the screw. The fixed object is located between the limiting end of the screw and the flange nut. During the locking process of the flange nut, the distance between the flange nut and the fixed object gradually decreases, the slot 104 is expanded by the reaction force of the fixed object, and the side wall of the recess 105 is tightly fitted with the fixed object. Since the recess 105 is a slope relative to the plane of the end of the gasket ring 102, the area of the side wall of the recess 105 can be larger than that when the end surface of the gasket ring 102 is designed as a plane. Therefore, the static friction between the side wall of the recess 105 and the fixed object can be generated in a large area, and the fixing stability is high.

[0033] The above only describes some exemplary embodiments of the present application by way of illustration. It is not necessary to modify the described embodiments in various ways without deviating from the spirit and scope of the present application for ordinary skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A flange nut comprising a nut body (101) and a threaded hole (103) formed in the nut body (101), characterized in that: The flange nut further comprises a gasket ring (102) fixed at the opening of one end of the screw hole (103), a notch (104) is formed on the gasket ring (102) along the axis direction of the screw hole (103), the notch (104) penetrates through the gasket ring (102) away from the end face of the nut body (101), and a recess (105) is arranged on the end face of the gasket ring (102) away from the nut body (101).

2. The flange nut of claim 1, wherein: At least two notches (104) are arranged in an annular array with the axis of the screw hole (103) as the reference.

3. The flange nut of claim 2, wherein: The notch (104) is arranged in two.

4. The flange nut of claim 1, wherein: The gasket ring (102) is integrally formed with the nut body (101).

5. The flange nut of claim 1, wherein: In the vertical section view, the side wall of the recess (105) is flat.

6. The flange nut of claim 1, wherein: The end of the screw hole (103) is provided with a chamfer.

7. The flange nut of claim 5, wherein: The included angle θ between the side wall of the recess (105) and the horizontal plane is ≤15°.

8. The flange nut of claim 7, wherein: The included angle θ between the side wall of the recess (105) and the horizontal plane is 8°.

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