High-strength stainless steel nylon flange locking nut

Abstract

The utility model relates to the technical field of locking nuts, in particular to a high-strength stainless steel nylon flange locking nut which comprises a nut body, a transition portion is integrally formed at the lower end of the nut body, a gasket is integrally formed at the lower end of the transition portion, and the circumferential surface of the transition portion is in threaded connection with an operation block. A first sealing block in sliding connection with the gasket is integrally formed at the lower end of the operation block, a plurality of reinforcing ribs are annularly arranged on the inner wall of the annular protrusion, and positioning grooves matched with the reinforcing ribs in a one-to-one correspondence mode are annularly formed in the circumferential surface of the nylon gasket. The first sealing block abuts against the contact face of a fastened piece by rotating the operation block, so that the problem that the contact face of the fastened piece is not tightly sealed due to the fact that an anti-skid groove is formed in the gasket is solved; meanwhile, a plurality of reinforcing ribs are annularly arranged on the inner wall of the annular protrusion, so that the strength of the annular protrusion is improved, and the situation that the annular protrusion is broken is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking nut technical field especially relates to a high strength stainless steel nylon flange locking nut. BACKGROUND

[0002] Locking nut is a nut widely used in mechanical industry, its working principle is to use the friction between nut and bolt to lock.

[0003] For example, the authorized announcement no. "CN204664117U" is named a flange face nylon nut, through the setting of nylon gasket, nylon is embedded on the bolt, thereby play the role of locking, this kind of locking is not reciprocating, after locking, it is not spun out again, therefore has stronger locking capacity.

[0004] The above and prior art have the following defects: the anti-skid tooth pattern arranged can cause the contact surface of gasket and fastened part to be not tightly sealed;The annular protrusion arranged has small strength and is prone to breakage. INVENTION CONTENTS

[0005] The utility model discloses a high strength stainless steel nylon flange locking nut to solve the shortcomings in the prior art.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] Design a kind of high strength stainless steel nylon flange locking nut, including nut body, the transition part is integrally formed in nut body lower end, the gasket is integrally formed in transition part lower end, the screw hole is set in the center of nut body, transition part and gasket, the lower surface of gasket is annularly provided with a plurality of anti-skid grooves, the circumferential surface of transition part is screw threadedly connected operating block, the section of the external contour of operating block is regular hexagon, the first sealing block of sliding connection with gasket is integrally formed in the lower end of operating block, the upper end of nut body is provided with annular protrusion, the first through-hole is arranged on the upper surface of annular protrusion, the nylon gasket is arranged on the inner wall of annular protrusion, the second through-hole is arranged on the surface of nylon gasket, a plurality of reinforcing ribs are annularly arranged on the inner wall of annular protrusion, the positioning groove corresponding with reinforcing rib is annularly arranged on the circumferential surface of nylon gasket, and the reinforcing rib extends into positioning groove.

[0008] Preferably, the circumferential surface of annular protrusion is screw threadedly connected with second sealing block, the section of the external contour of second sealing block is regular hexagon, and the upper end of second sealing block is provided with upper cover.

[0009] Preferably, the section of the external contour of upper cover is arc-shaped.

[0010] Preferably, a plurality of vertical anti-skid columns are arranged around the outer surface of nut body.

[0011] Preferably, the first sealing block lower surface is annularly provided with a sealing gasket.

[0012] Preferably, the gasket lower surface is annularly provided with a mounting groove, and an inner wall of the mounting groove is annularly provided with a sealing ring.

[0013] The high-strength stainless steel nylon flange locking nut has the advantages that: the operation block is in threaded connection with the transition part, the first sealing block is tightly pressed against the contact surface of the fastened part by rotating the operation block, the anti-skid groove provided on the gasket is compensated, and the contact surface of the fastened part is tightly sealed; meanwhile, the annular protrusion is annularly provided with a plurality of reinforcing ribs, the reinforcing ribs reinforce the annular protrusion, the strength of the annular protrusion is increased, and the annular protrusion is prevented from being broken; the reinforcing ribs are inserted into the positioning groove of the nylon gasket, and the nylon gasket is prevented from rotating. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 Fig. 1 is a structural schematic view of the utility model;

[0015] Fig. 2 Fig. 2 is a structural sectional view of the utility model;

[0016] Fig. 3 Fig. 3 is a structural schematic view of the nylon gasket of the utility model.

[0017] In the figure: nut body 1, transition part 2, gasket 3, threaded hole 4, anti-skid groove 5, operation block 6, first sealing block 7, annular protrusion 8, first through hole 9, nylon gasket 10, second through hole 11, reinforcing rib 12, positioning groove 13, second sealing block 14, upper cover 15, anti-skid column 16, sealing gasket 17, mounting groove 18, sealing ring 19. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] Reference Figs. 1-3A high-strength stainless steel nylon flange locking nut includes a nut body 1, a transition portion 2 integrally formed at the lower end of the nut body 1, and a washer 3 integrally formed at the lower end of the transition portion 2. Threaded holes 4 are formed at the center of the nut body 1, the transition portion 2, and the washer 3. Multiple anti-slip grooves 5 are circumferentially formed on the lower surface of the washer 3. An operating block 6 is threadedly connected to the circumferential surface of the transition portion 2. The cross-section of the outer contour of the operating block 6 is a regular hexagon, facilitating operation with a wrench. A first sealing block 7 is integrally formed at the lower end of the operating block 6, which slidably connects with the washer 3. By rotating the operating block 6, the first sealing block 7 is pressed against the contact surface of the fastened component, thus compensating for any incomplete sealing caused by the anti-slip grooves 5 on the washer 3. The nut body 1 has an annular protrusion 8 at its upper end. The annular protrusion 8 has a first through hole 9 on its upper surface. A nylon washer 10 is provided on the inner wall of the annular protrusion 8. The nylon washer 10 has a second through hole 11 on its surface. Multiple reinforcing ribs 12 are provided in a ring on the inner wall of the annular protrusion 8. The nylon washer 10 has a positioning groove 13 on its circumferential surface that corresponds to and matches the reinforcing ribs 12. The reinforcing ribs 12 extend into the positioning grooves 13. The multiple reinforcing ribs 12 reinforce the annular protrusion 8, increasing its strength and preventing it from breaking. By extending the reinforcing ribs 12 into the positioning grooves 13 of the nylon washer 10, the nylon washer 10 is also prevented from rotating.

[0020] A second sealing block 14 is threadedly connected to the circumferential surface of the annular protrusion 8. The cross-section of the outer contour of the second sealing block 14 is a regular hexagon, which facilitates operation of the second sealing block 14 with a wrench. A top cover 15 is provided at the upper end of the second sealing block 14. The second sealing block 14 and the top cover 15 serve to seal the upper end of the locking nut.

[0021] The outer contour of the top cover 15 has an arc-shaped cross section, which increases the strength of the top cover 15.

[0022] The outer surface of the nut body 1 is provided with multiple vertical anti-slip posts 16. The anti-slip posts 16 are provided to increase the strength of the nut body 1 and also to prevent slipping.

[0023] A sealing gasket 17 is provided in a ring on the lower surface of the first sealing block 7. The sealing gasket 17 serves to enhance the sealing of the locking nut.

[0024] The lower surface of the gasket 3 has an annular mounting groove 18, and the inner wall of the mounting groove 18 has an annular sealing ring 19. The sealing ring 19 serves to seal the surface.

[0025] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A high-strength stainless steel nylon flange locking nut comprising a nut body (1), characterized in that, The nut body (1) lower end integral transition (2), the transition (2) lower end integral gasket (3), the nut body (1), transition (2) and gasket (3) center opening thread hole (4), the gasket (3) lower surface annularly provided with a plurality of anti-skid groove (5), the transition (2) circumferential surface thread connection operation block (6), the operation block (6) external contour section is a regular hexagon, the operation block (6) lower end integral with gasket (3) sliding connection first sealing block (7), the nut body (1) upper end provided with annular convex (8), the annular convex (8) upper surface provided with first through hole (9), the annular convex (8) inner wall provided with nylon gasket (10), the nylon gasket (10) surface provided with second through hole (11), the annular convex (8) inner wall annularly provided with a plurality of reinforcing ribs (12), the nylon gasket (10) circumferential surface annularly provided with a corresponding and matching positioning groove (13) with reinforcing ribs (12), the reinforcing ribs (12) into the positioning groove (13) in.

2. A high-strength stainless steel nylon flange lock nut according to claim 1, characterized in that, The annular convex (8) circumferential surface thread connection has second sealing block (14), the second sealing block (14) external contour section is a regular hexagon, the second sealing block (14) upper end provided with upper cover (15).

3. A high-strength stainless steel nylon flange lock nut according to claim 2, characterized in that, The upper cover (15) external contour section is arc-shaped.

4. A high-strength stainless steel nylon flange lock nut according to claim 1, characterized in that, The nut body (1) outer surface around provided with a plurality of vertical anti-skid column (16).

5. A high-strength stainless steel nylon flange lock nut according to claim 1, wherein The first sealing block (7) lower surface annularly provided with sealing gasket (17).

6. A high-strength stainless steel nylon flange lock nut according to claim 1, wherein The gasket (3) lower surface annularly provided with mounting groove (18), the mounting groove (18) on the inner wall annularly provided with sealing ring (19).

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