Beam-type sealing female joint dry film lubrication device

By designing a beam-type sealing female joint dry film lubrication device, the problems of low efficiency and uneven film thickness in the existing technology have been solved, achieving efficient and uniform dry film lubrication and improving product reliability.

CN224454289UActive Publication Date: 2026-07-03DALIAN CANDL TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-06
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In the existing technology, the dry film lubrication treatment of beam-type sealing female joints has low efficiency and uneven film thickness.

Method used

A dry film lubrication device for a beam-type sealing female connector, comprising a base, a plunger, and an end cap, is designed. Through the clearance fit between the end cap and the base and the design of the lubrication cavity, the beam-type sealing female connector is ensured to remain stationary during rotation, while the plunger performs dry film lubrication inside.

Benefits of technology

It improves the efficiency of dry film lubrication and the uniformity of film thickness, thereby enhancing product reliability and ease of operation.

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Abstract

This utility model relates to the field of aviation hydraulic system pipeline connection technology, and in particular to a dry film lubrication device for a beam-type sealing female connector. The utility model includes: a base, a plunger, and an end cap; the end cap is fitted with the upper part of the base with a clearance fit; the end cap has a through hole with a lubrication cavity centered on the end cap and the base; the lubrication cavity includes a lower recessed cavity located at the center of the upper end of the base and an upper recessed cavity located inside the end cap. The beam-type sealing female connector is placed inside the lubrication cavity; the plunger is inserted into the interior of the beam-type sealing female connector through the through hole. The technical solution of this utility model solves the problems of low efficiency and uneven film thickness in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of aviation hydraulic system pipeline connection technology, and in particular to a beam-type sealing female joint dry film lubrication device. Background Technology

[0002] With the rapid development of the national air transport industry, higher requirements have been placed on the safety performance of aircraft operations, among which the safety and reliability of aviation piping systems are extremely important. The hydraulic system on an aircraft is a crucial component of the piping system, and hydraulic pipe fittings are essential components of the aircraft hydraulic system. Beam-type sealing pipe fittings offer advantages such as high reliability, simple structure, light weight, and the ability to withstand severe vibrations and high-pressure pulses. The beam-type sealing female fitting is a key component of the beam-type sealing pipe fitting system. Considering safety and ease of installation, beam-type sealing female fittings require dry film lubrication treatment before use, and the quality of the dry film lubrication layer has a significant impact on the product's lifespan.

[0003] Currently, existing dry film lubrication methods involve using masking tape to cover the areas of the beam-type sealing female joint that are not eligible for dry film lubrication, and then manually spraying the lubricant to complete the dry film lubrication process. However, this method suffers from low efficiency and uneven film thickness in the beam-type sealing female joint.

[0004] In view of the problems existing in the above-mentioned prior art, it is necessary to study and design a new type of beam-type sealing female joint dry film lubrication device to overcome the problems existing in the prior art. Summary of the Invention

[0005] To address the technical problems of low efficiency and uneven film thickness in the existing technology, a dry film lubrication device for a beam-type sealing female joint is provided.

[0006] The technical means adopted in this utility model are as follows:

[0007] A beam-type sealing female joint dry film lubrication device includes: a base, a plunger, and an end cap;

[0008] Furthermore, the end cap is fitted with the upper part of the base with a clearance fit;

[0009] Furthermore, the end cap has a through hole for a lubrication cavity located at the center of the end cap and the base;

[0010] Furthermore, a beam-type sealing female connector is placed inside the lubrication cavity;

[0011] Furthermore, the plunger is inserted into the interior of the beam-type sealing female connector through the through hole, preventing the beam-type sealing female connector from moving left and right during rotation and completing the dry film lubrication of the beam-type sealing female connector.

[0012] Furthermore, the lubrication cavity includes a recessed cavity located at the center of the upper end of the base and an upper recessed cavity located inside the end cap.

[0013] Furthermore, the base is a rotating structure made of aluminum alloy, with a small hole at the center of its lower end for convenient placement and fixing of the dry film lubrication device for the beam-type sealing female connector.

[0014] Furthermore, the upper outer wall of the base is machined with a ring platform for clearance fitting with the end cap.

[0015] Furthermore, the end cap is a rotating structure made of aluminum alloy, and a groove structure is provided in the lower part of its upper concave cavity;

[0016] Furthermore, the groove structure and the ring platform on the upper part of the base are fitted together with the end cap and the base in a clearance fit.

[0017] Furthermore, the plunger is a replaceable part, and its diameter and height are designed according to the structural dimensions of beam-type sealing female joints of different specifications, making it easy to replace;

[0018] Furthermore, the plunger is a cylindrical rotating structure made of stainless steel.

[0019] Furthermore, the through-hole diameter of the end cap is larger than the diameter of the plunger but smaller than the maximum outer diameter of the beam-type sealing female connector, thus preventing the beam-type sealing female connector from moving during the spraying process.

[0020] The assembly and use methods of this utility model are as follows:

[0021] First, place the base flat on the fixed surface and fix it through the small hole. Then, place the beam-type sealing female connector into the recessed cavity at the middle of the upper end of the base. Place the end cap on the base, ensuring that the upper recessed cavity of the end cap fits over the upper end of the beam-type sealing female connector, while the groove structure of the end cap and the upper ring platform of the base are in clearance fit. Slowly insert a plunger of appropriate size into the beam-type sealing female connector through the through hole at the top of the end cap, turn on the dry film lubrication machine, and finally achieve dry film lubrication of the beam-type sealing female connector.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The beam-type sealing female joint dry film lubrication device provided by this utility model has the advantages of fewer component parts, simple structure, easy operation, high efficiency and high reliability;

[0024] 2. The dry film lubrication device for the beam-type sealing female joint provided by this utility model has a lubrication cavity set at the center of the end cap and the base to fix the beam-type sealing female joint, and prevent the beam-type sealing female joint from moving left and right during rotation, thereby improving the reliability of the product.

[0025] 3. The dry film lubrication device for the beam-type sealing female joint provided by this utility model has a plunger placed inside the beam-type sealing female joint, which not only improves the success rate of effective dry film lubrication, but also ensures the uniformity of the film thickness of the beam-type sealing female joint, while also protecting other parts, thereby improving the reliability of the product.

[0026] In summary, the technical solution of this utility model solves the problems of low efficiency and uneven film thickness in the prior art. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0030] Figure 3 This is a schematic diagram of the plunger structure of this utility model;

[0031] Figure 4 This is a schematic diagram of the end cap structure of this utility model.

[0032] In the figure: 1. Base; 11. Recessed cavity; 12. Small hole; 2. Piston; 21. Diameter; 22. Height; 3. End cap; 31. Recessed cavity; 32. Groove structure; 4. Beam-type sealing female connector. Detailed Implementation

[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0038] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0039] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0040] like Figure 1 As shown, this utility model provides a dry film lubrication device for a beam-type sealing female connector, comprising: a base 1, a plunger 2, and an end cap 3; the end cap 3 is fitted with the upper part of the base 1 with clearance fit; the end cap 3 has a through hole for a lubrication cavity that is centered on the end cap 3 and the base 1; the beam-type sealing female connector 4 is placed in the lubrication cavity; the plunger 2 is inserted into the interior of the beam-type sealing female connector 4 through the through hole.

[0041] like Figure 1-2 As shown in Figures 1 and 4, the lubrication cavity includes a recessed cavity 11 located at the center of the upper end of the base 1 and an upper recessed cavity 31 located inside the end cap 3.

[0042] like Figure 1 , 2 As shown, the base 1 is a rotating structure made of aluminum alloy, and a small hole 12 is provided at the center of its lower end for convenient placement and fixing of the dry film lubrication device of the beam-type sealing female connector.

[0043] like Figure 1 , 2 As shown, the upper outer wall of the base 1 is machined with a ring platform for clearance fitting with the end cap 3.

[0044] like Figure 1 , 4 As shown, the end cap 3 is a rotating structure made of aluminum alloy, and a groove structure 32 is provided at the lower part of the upper concave cavity 31; the groove structure 32 and the annular platform on the upper part of the base 1 are fitted together with the end cap 3 and the base 1 in a clearance fit.

[0045] like Figure 1 , 3 As shown, plunger 2 is a replaceable part. Its diameter 21 and height 22 are designed according to the structural dimensions of beam-type sealing female connectors 4 of different specifications, making it easy to replace. Plunger 2 is a cylindrical rotating body structure made of stainless steel.

[0046] like Figure 1 As shown, the through hole diameter of the end cap 3 is larger than the diameter 21 of the plunger 2, but smaller than the maximum outer diameter of the beam-type sealing female connector 4, thus preventing the beam-type sealing female connector from moving during the spraying process.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dry film lubrication device for a beam-type sealing female joint, characterized in that: The beam-type sealing female joint dry film lubrication device includes: a base (1), a plunger (2), and an end cap (3); The end cap (3) is fitted with the upper part of the base (1) with a clearance fit; The end cap (3) is provided with a through hole for a lubrication cavity that is centered on the end cap (3) and the base (1); A beam-type sealing female connector (4) is placed inside the lubrication cavity. The plunger (2) is inserted into the interior of the beam-type sealing female connector (4) through the through hole.

2. The beam-type sealing female joint dry film lubrication device according to claim 1, characterized in that: The lubrication cavity includes a recessed cavity (11) located at the center of the upper end of the base (1) and an upper recessed cavity (31) located inside the end cap (3).

3. The beam-type sealing female joint dry film lubrication device according to claim 1, characterized in that: The base (1) is a rotating structure made of aluminum alloy, and a small hole (12) is provided at the center of its lower end for convenient placement and fixing of the dry film lubrication device of the beam-type sealing female connector.

4. The beam-type sealing female joint dry film lubrication device according to claim 1, characterized in that: The upper outer wall of the base (1) is machined with a ring platform for clearance fitting with the end cap (3).

5. The beam-type sealing female joint dry film lubrication device according to claim 2, characterized in that: The end cap (3) is a rotating structure made of aluminum alloy, and a groove structure (32) is provided at the lower part of its upper concave cavity (31). The groove structure (32) and the ring platform on the upper part of the base (1) are fitted together with the end cap (3) and the base (1) in a gap fit.

6. The beam-type sealing female joint dry film lubrication device according to claim 1, characterized in that: The plunger (2) is a replaceable part, and its diameter (21) and height (22) are designed according to the structural dimensions of beam-type sealing female connectors (4) of different specifications, so as to facilitate replacement; The plunger (2) is a cylindrical rotating structure made of stainless steel.

7. The beam-type sealing female joint dry film lubrication device according to claim 1, characterized in that: The through hole diameter of the end cap (3) is larger than the diameter (21) of the plunger (2) and smaller than the maximum outer diameter of the beam-type sealing female connector (4), thus preventing the beam-type sealing female connector from moving during the spraying process.