Non-destructive sealing device for aviation weather bottle

Abstract

The utility model discloses an aviation gas cylinder lossless sealing device which comprises a gas cylinder body, a mouthpiece with a spherical surface structure is arranged above the gas cylinder body, a sealing joint is sleeved on the outer side of the mouthpiece, a conical surface structure attached to the spherical surface is arranged in the sealing joint, the conical surface structure and the spherical surface structure form a sealing surface, and the sealing surface is provided with a sealing hole. The utility model relates to the technical field of gas cylinder sealing, a conical surface structure in a sealing joint is tightly attached to a spherical surface structure of a gas cylinder mouthpiece to form a sealing surface, the conical surface structure is tightly attached to the spherical surface structure of the gas cylinder mouthpiece to form a sealing surface, the sealing joint is fixedly connected with an adapter, a lock cap is sleeved on the outer side of the sealing joint, and a locking nut is screwed on the outer wall of the mouthpiece through threads. Indentation possibly generated in a traditional connecting mode is avoided, spherical and conical face matching among the gas cylinder mouthpiece, the sealing connector and the mouthpiece and the synergistic effect of the lock nut, the locking nut and the fastening assembly are effectively protected, the whole connecting structure is stable and reliable, gas or liquid leakage is prevented, and normal operation of a system is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gas cylinder sealing technical field, concretely to a spaceflight gas cylinder nondestructive sealing device. BACKGROUND

[0002] In the hydraulic pneumatic system of aerospace, the sealing of the connecting place of pipe joint is very important, but the traditional sealing structure is easy to produce indentation in the connecting process, and further affect the product quality, in addition, for the connection of some test equipment and spaceflight gas cylinder, not only need to ensure the reliability of connection, but also require convenient disassembly, so as to carry out multiple tests and equipment maintenance and other work, therefore, in order to meet the high quality requirement of the connecting of hydraulic pneumatic system pipe joint in the field of aerospace, a new sealing device is urgently needed to be designed. SUMMARY

[0003] In view of the defects of the prior art, the utility model provides a spaceflight gas cylinder nondestructive sealing device, solves the problems that the existing sealing structure is easy to produce indentation and inconvenient to disassemble.

[0004] In order to achieve the above object, the utility model realizes the following technical scheme: a spaceflight gas cylinder nondestructive sealing device, including the gas cylinder body, the gas cylinder body upper side is equipped with the ball surface structure's mouthpiece, the mouthpiece outside is equipped with the sealing joint, the sealing joint is equipped with the taper surface structure that is combined with the ball surface in, the taper surface structure and the ball surface structure form the sealing surface, the sealing joint one end is fixedly connected with the conversion joint, the sealing joint outside is equipped with the lock cap, the mouthpiece outer wall is equipped with the locking nut through the thread, the lock cap and the locking nut form the accommodating cavity, the sealing joint outer wall is integrally formed with the blocking ring that is placed in the accommodating cavity, the lock cap and the locking nut are connected through the fastening assembly.

[0005] Preferably, the fastening assembly includes a fixing ring provided on the outer wall of the locking nut, a plurality of threaded studs are provided on the side wall of the fixing ring, a plurality of through holes are provided on the outer wall of the lock cap for the threaded studs to pass through, a wing nut is threadedly connected to the end of each threaded stud, and one end of the wing nut abuts against the outer wall of the lock cap.

[0006] Preferably, the number of threaded studs is at least two and symmetrically arranged on the upper and lower sides of the locking nut.

[0007] Preferably, the sealing joint and the conversion joint are connected by welding.

[0008] Beneficial effects

[0009] The utility model provides a spaceflight gas cylinder nondestructive sealing device, has the following beneficial effects:

[0010] The sealing surface is formed by the close combination of the conical surface structure in the sealing connector and the spherical surface structure of the cylinder connector, avoiding the indentation that may be caused by the traditional connection mode, effectively protecting the cylinder connector, and ensuring the integrity and reusability of the cylinder.

[0011] The spherical conical surface cooperation between the sealing connector and the connector, and the cooperation of the lock cap, the locking nut and the fastening assembly, make the whole connection structure stable and reliable, which can withstand the high pressure environment in the hydraulic pneumatic system, prevent gas or liquid leakage, and ensure the normal operation of the system.

[0012] The connection mode of the wing nut and the stud is simple and convenient, when disassembling, only the wing nut needs to be unscrewed, the lock cap can be easily removed, and then the sealing connector is separated from the cylinder connector, which is convenient and fast, greatly improves the work efficiency in the test process, and reduces the time cost of equipment maintenance and replacement. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structural schematic view of the utility model.

[0014] Fig. 2 It is a local enlarged structural schematic view of the utility model.

[0015] In the figure: 1, cylinder body; 2, connector; 3, locking nut; 4, lock cap; 5, sealing connector; 6, conversion connector; 7, retaining ring; 8, fixing ring; 9, stud; 10, wing nut. DETAILED DESCRIPTION

[0016] 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, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0017] Please refer to Figs. 1-2 The utility model provides a kind of technical solutions: a kind of aerospace cylinder nondestructive sealing device, including cylinder body 1, the cylinder body 1 top is equipped with the connector 2 with spherical surface structure, the connector 2 outside is equipped with sealing connector 5, the sealing connector 5 is equipped with the conical surface structure that is attached with the spherical surface in, the conical surface structure and the spherical surface structure form sealing surface, one end of the sealing connector 5 is fixedly connected with conversion connector 6, the sealing connector 5 outside is equipped with lock cap 4, the connector 2 outer wall is connected by thread with locking nut 3, the lock cap 4 and the locking nut 3 between form accommodating cavity, the retaining ring 7 in accommodating cavity is integrally formed on the outer wall of the sealing connector 5, the lock cap 4 and the locking nut 3 between are connected by fastening assembly.

[0018] By adopting the technical scheme, the spherical structure connector 2 above the cylinder body 1 is used as the connecting part with the sealing connector 5, and the taper structure of the sealing connector 5 is matched with the spherical structure connector 2 to form a sealing surface, the matching of the spherical structure and the taper structure can keep good sealing effect, the conversion connector 6 is fixedly connected with the sealing connector 5 and is used for connecting a test device to realize transmission of gas or liquid, the cooperation of the locking cap 4, the locking nut 3, the accommodating cavity and the blocking ring 7 formed therebetween enhances the fixing effect of the sealing connector 5 on the cylinder connector 2 and prevents displacement or loosening of the sealing connector 5 during the test, through the overall structural design, lossless sealing connection between the cylinder and the test device is realized, and the reliability and stability of the connection are ensured.

[0019] The embodiment is further provided with the fixing ring 8 arranged on the outer wall of the locking nut 3, the side wall of the fixing ring 8 is provided with a plurality of threaded studs 9, the outer wall of the locking cap 4 is provided with a plurality of through holes for the threaded studs 9 to pass through, the threaded studs 9 are screwed with butterfly nuts 10 at the ends, and one end of the butterfly nut 10 abuts against the outer wall of the locking cap 4.

[0020] By adopting the technical scheme, the threaded studs 9 on the fixing ring 8 of the nut outer wall pass through the through holes of the locking cap 4, and then the butterfly nuts 10 are screwed, the locking cap 4 and the locking nut 3 are tightly connected together by the tightening force of the butterfly nuts 10, so that the locking nut 3, the locking cap 4, the sealing connector 5 and the conversion connector 6 are combined to form an integrated structure, and the position of the sealing connector 5 can be conveniently adjusted subsequently.

[0021] The embodiment is further provided with the threaded studs 9, the number of which is at least two and symmetrically arranged on the upper and lower sides of the locking nut 3.

[0022] By adopting the technical scheme, the force borne by the sealing device can be transmitted to the locking cap 4 and the locking nut 3 through the uniformly distributed threaded studs 9, and sealing failure or component damage caused by excessive local force is avoided.

[0023] The embodiment is further provided with the sealing connector 5 and the conversion connector 6 which are connected through welding.

[0024] The skilled in the art will connect the parts in the case in sequence, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is a public known technology in the art, and the following mainly introduces the working principle and process.

[0025] The embodiment is as follows: firstly, the locking nut 3 is screwed with the thread of the outer wall of the cylinder connector 2, then the sealing connector 5 is sleeved on the spherical connector 2 of the cylinder body 1, the conical surface structure in the sealing connector 5 is matched with the spherical surface structure of the connector 2 to form an initial sealing fit, the locking cap 4 is sleeved outside the sealing connector 5, and the blocking ring 7 of the outer wall of the sealing connector 5 is arranged in the accommodating cavity formed between the locking cap 4 and the locking nut 3, at this time, the threaded studs 9 of the side wall of the fixing ring 8 pass through the through holes of the outer wall of the locking cap 4, then the wing nuts 10 are screwed on the ends of the threaded studs 9, and the wing nuts 10 are tightened to abut against the outer wall of the locking cap 4, so that the locking nut 3, the locking cap 4, the sealing connector 5 and the conversion connector 6 form an integrated structure, at this time, the locking nut 3 can be rotated to drive the locking cap 4 to move horizontally towards the cylinder body 1, at this time, the locking cap 4 will push the sealing connector 5 to move synchronously towards the cylinder body 1 through the blocking ring 7, so that the conical surface structure in the sealing connector 5 is tightly matched with the spherical surface structure of the connector 2 to form a stable sealing surface structure, after the above steps are completed, the other end of the conversion connector 6 is connected with the test equipment, and the required test can be carried out.

[0026] It is to be understood that the terminology used herein such as first and second, and the like, is merely for distinguishing one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A non-destructive sealing device for space gas cylinders, comprising a cylinder body (1) provided with a nozzle (2) having a spherical surface structure, characterized in that, The sealing connector (5) is provided with a conical surface structure matched with the spherical surface, and the conical surface structure and the spherical surface structure form a sealing surface.

2. A non-destructive sealing device for space-grade gas cylinders as claimed in claim 1, wherein, The fastening assembly comprises a fixing ring (8) provided on the outer wall of the locking nut (3), the side wall of the fixing ring (8) is provided with a plurality of studs (9), the outer wall of the lock cap (4) is provided with a plurality of through holes for the studs (9) to pass through, the distal end of the stud (9) is screwed with a butterfly nut (10), and one end of the butterfly nut (10) abuts against the outer wall of the lock cap (4).

3. A non-destructive sealing device for space-grade gas cylinders as claimed in claim 2, wherein, The number of the studs (9) is at least two and symmetrically arranged on the upper and lower sides of the locking nut (3).

4. A non-destructive sealing device for space-grade gas cylinders as claimed in claim 3, wherein, The sealing connector (5) and the conversion connector (6) are connected through welding.

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