Jacket nut-clamping jaw assembly applied to self-locking connector

Abstract

The utility model discloses a jacket nut-clamping jaw assembly applied to a self-locking connector, and relates to the technical field of connecting assemblies, in particular to the jacket nut-clamping jaw assembly applied to the self-locking connector in an aviation hydraulic pipeline system. The nut comprises an outer sleeve nut and a clamping jaw, an upper square hole and a lower square hole are respectively formed in the upper end and the lower end of the outer sleeve nut; the clamping jaw is inserted from the lower square hole, and the head part of the upper clamping jaw is clamped in the upper square hole and is limited and mounted in the outer sleeve nut; and the grabbing parts of the clamping jaws protrude out of the flat pipe nozzle toothed ring and are engaged to realize an anti-loosening function. The head of the clamping jaw is of a thin locking plate structure, and two sides outside the top end are of buckle-type structures; a V-shaped groove is formed in the middle position; the bottom of the V-shaped groove is in circular transition. According to the technical scheme, the problems that in the prior art, due to the fact that the surface of an outer sleeve nut is very brittle and hard after the outer sleeve nut is oxidized, cracks are prone to occurring at the punching position during punching, and the punching position, depth, size and the like are difficult to be consistent in technical state are solved.

Description

Technical Field

[0001] The utility model relates to an outer sleeve nut-claw assembly applied to a self-locking joint, relates to the technical field of connection assemblies, and in particular to an outer sleeve nut-claw assembly applied to a self-locking joint in an aviation hydraulic pipeline system. Background Art

[0002] In the aviation hydraulic piping system, the pipelines are connected and sealed by threaded pairs. After the threads are tightened, the traditional thread locking method is to use a safety wire to pass through the threading hole of the threaded connection pair and screw the safety wire in a specific way to prevent the threads from loosening. At present, the safety wire anti-loosening method is rarely used abroad. Since the 1970s, foreign countries have begun to study the integration of claw locking plates (hereinafter referred to as "claws") into the outer nut, and the anti-loosening function is achieved by the engagement of the claw protrusion with the flat nozzle tooth ring. After the claw is installed in the outer nut, it is necessary to punch a hole at the end of the outer nut (material TC6). Punching the hole causes local permanent deformation of the outer nut, thereby limiting the claw in the outer nut. This solution has disadvantages. Since the outer nut is anodized, its surface is very brittle and hard. Cracks are likely to occur at the punched part during punching, and it is difficult to achieve technical consistency in the punching position, depth, size, etc.

[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to research and design a new type of outer nut-claw assembly used in a self-locking joint, so as to overcome the problems existing in the prior art. Summary of the Invention

[0004] In response to the technical issues raised in the prior art, such as the brittle surface of the outer nut after extreme oxidation, the tendency for cracks to form at the punching site, and the difficulty in achieving consistent punching position, depth, and size, a outer nut-claw assembly for self-locking joints is provided. This utility model primarily replaces the punching process on the outer nut by adjusting the claw head and utilizing the elastic deformation of the metal to embed the claw into the outer nut. This ensures that the claw can move freely within a certain range within the outer nut, improving product reliability and reducing the difficulty of the product's processing. The technical means employed in this utility model are as follows:

[0005] A jacket nut-claw assembly for a self-locking joint comprises: a jacket nut and a claw;

[0006] Furthermore, the lower part of the outer sleeve nut is processed with a lower square hole for inserting the claw, and the upper part is processed with an upper square hole for clamping the claw;

[0007] Furthermore, the claw is inserted into the lower square hole, and the upper claw head is clamped in the upper square hole, so that it is limited and installed in the outer sleeve nut; the claw gripping part protrudes from the flat pipe nozzle tooth ring to bite and realize the anti-loosening function.

[0008] Furthermore, the upper square hole and the lower square hole are provided at the upper part and the lower part of the non-threaded end of the outer sleeve nut.

[0009] Furthermore, the claw head is a thin locking plate structure, and the outer two sides of the top end are buckle-type structures;

[0010] Furthermore, a V-shaped groove is processed at the middle position of the top end of the claw head.

[0011] Furthermore, the bottom of the V-shaped groove at the top end of the claw head is a circular transition.

[0012] Furthermore, the wide ends of the buckle-type structures on both sides of the top of the claw head are larger than the length of the upper square hole. With the elasticity of the V-shaped groove, the claw head is clamped on the upper surface of the upper square hole, realizing the up and down and front and back limiting of the claw.

[0013] The usage of this utility model is:

[0014] When installing the claw to the outer nut, first pass the claw through the lower square hole of the outer nut. After the claw is completely inserted into the outer nut, the head of the claw contacts the bottom of the upper square hole of the non-threaded end of the outer nut. Since the two sides of the claw head are "snap-type" structures, external force is required to press the head of the claw into the upper square hole of the non-threaded end of the outer nut. During the pressing process, the head of the claw undergoes elastic deformation. After the pressing is completed, the elastic deformation of the head of the claw disappears, and the snaps on both sides of the claw head are stuck on the upper surface of the upper square hole of the non-threaded end of the outer nut.

[0015] When in use, the claws are installed on the non-threaded side of the outer nut to achieve up and down and front and back limiting.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The outer sleeve nut-claw assembly for a self-locking joint provided by the utility model realizes the assembly and positioning of the claw and the outer sleeve nut by providing an elastic V-groove structure on the claw head.

[0018] 2. The outer nut-claw assembly for the self-locking joint provided by the utility model has a V-groove structure whose bottom is processed into a circular transition, thereby increasing the elasticity of the claw head.

[0019] In summary, the technical solution of the present invention solves the problems in the prior art that the surface of the outer nut becomes very brittle and hard after being extremely oxidized, cracks are easily generated at the punching position during punching, and the punching position, depth, size, etc. are difficult to achieve consistent technical conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the claw structure of the utility model;

[0023] Figure 3 This is a three-dimensional diagram of the outer nut of the utility model;

[0024] Figure 4 This is a cross-sectional view of the outer nut of the utility model;

[0025] Figure 5 This is a cross-sectional view of the assembly of the claw and the outer nut;

[0026] Figure 6 This is an enlarged view of the assembly structure of the claw head and the outer nut of the utility model;

[0027] Figure 7 This is a schematic diagram of the existing structure.

[0028] In the figure: 100, claw 110, outer sleeve nut 120, claw head 130, lower square hole 140, upper square hole. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technology, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0036] like Figure 1-6 As shown, the utility model provides a sleeve nut-claw assembly for a self-locking joint, comprising: a sleeve nut 110 and a claw 100; the upper end and the lower end of the sleeve nut 110 are respectively processed with an upper square hole 140 and a lower square hole 130; the claw 100 is inserted into the lower square hole 130, and its upper claw head 120 is clamped in the upper square hole 140, so as to limit it and install it in the sleeve nut; the gripping part of the claw 100 protrudes and bites into the tooth ring of the flat pipe nozzle to realize the anti-loosening function.

[0037] like Figure 3 、 4 As shown, the upper square hole 140 and the lower square hole 130 are provided at the upper and lower portions of the non-threaded end of the outer sleeve nut 110 .

[0038] like Figure 2 、 5 -6, the claw head 120 is a thin locking plate structure, and the two sides of the outer top of the claw head 120 are snap-on structures; a V-shaped groove is processed in the middle position of the top of the claw head 120.

[0039] like Figure 3 、 4 As shown, the bottom of the V-shaped groove at the top of the claw head 120 is a rounded transition.

[0040] like Figure 3 、 4As shown, the wide ends of the snap-type structures on both sides of the top of the claw head 120 are larger than the length of the upper square hole 140. With the elasticity of the V-shaped groove, the claw head 120 is stuck on the upper surface of the upper square hole 140, realizing the up and down and front and back limiting of the claw 100.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A jacket nut-claw assembly for a self-locking joint, characterized by: The outer nut-claw assembly used for a self-locking joint comprises: an outer nut (110) and a claw (100); The upper end and the lower end of the outer sleeve nut (110) are respectively processed with an upper square hole (140) and a lower square hole (130); The clamping claw (100) is inserted into the lower square hole (130), and the upper clamping claw head (120) is clamped in the upper square hole (140), and is limitedly installed in the outer nut (110); the gripping part of the clamping claw (100) is protruded from the flat nozzle tooth ring to realize the anti-loosening function.

2. The outer nut-claw assembly for a self-locking joint according to claim 1, characterized in that: The upper square hole (140) and the lower square hole (130) are arranged at the upper and lower parts of the non-threaded end of the outer sleeve nut (110).

3. The outer nut-claw assembly for a self-locking joint according to claim 1, characterized in that: The claw head (120) is a thin locking plate structure, and the outer sides of the top end are buckle-type structures; A V-shaped groove is processed at the middle position of the top end of the claw head (120).

4. The outer nut-claw assembly for a self-locking joint according to claim 3, characterized in that: The bottom of the V-shaped groove at the top of the claw head (120) is a circular transition.

5. The outer nut-claw assembly for a self-locking joint according to claim 3, characterized in that: The wide ends of the snap-fit ​​structures on both sides of the top of the claw head (120) are larger than the length of the upper square hole (140). The claw head (120) is clamped on the upper surface of the upper square hole (140) by virtue of the elasticity of the V-shaped groove, thereby realizing the upper and lower and front and back limiting of the claw (100).

Images