A blind rivet with a rubber sealing bush
A technology of blind rivets and bushings, which is applied in rivets and other directions, can solve the problems of no sealing and anti-corrosion function, and can not use oil storage space for structural connection, etc., and achieve the effect of high installation accuracy and reliability, and simple structure
Active Publication Date: 2018-07-10
AEROSPACE PRECISION PROD INC LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0003] Most of the currently used blind rivets can only be used in the atmospheric environment. Because they do not have the function of sealing and anticorrosion, they cannot be used for the structural connection of the oil storage space, such as the connection of some oil tank structural parts with a narrow space.
Method used
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[0025] The invention will be further described below in conjunction with the accompanying drawings.
[0026] An embodiment of the inventive structure of the present invention is as Figure 1-6 shown, including:
[0027] The core rod 1 is provided with a tail convex body 11 at one end and a broken neck groove 12 at the middle;
[0028] The bushing 2 is sleeved on the core rod 1, one end (which can be regarded as the tail end) is in contact with the tail convex body 11 of the core rod 1 and is limited by the tail convex body 11, and the other end (visible is the head end) to the middle of the core rod 1 until the broken neck groove 12 is located inside the bushing 2, and the end surface of the bushing 2 is located at one end (head end) of the middle part of the core rod 1 A locking hole 21 is opened inwardly;
[0029] The locking ring 3 is set on the core rod 1 adjacent to the bushing 2, one end of the locking ring 3 goes deep into the locking hole 21, and is limited by the i...
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The present invention creatively provides a blind rivet with a rubber sealing bush, comprising a stem rod, a bush, a lock ring and a rubber sleeve. One end of the stem rod is provided with a tail projecting body, and a middle portion of the stem rod is provided with a broken neck groove. The bush sleeves the stem rod, with one end contacting with the tail projecting body of the stem rod and being limited by the tail projecting body, and the other extending toward the middle portion of the stem rod such that the broken neck groove is positioned inside the bush; and an end face of one end, positioned at the middle portion of the stem rod, of the bush is inward formed with a locking hole. The lock ring sleeves the stem rod in a way of being adjacent to the bush, and one end of the lock ring extends into the locking hole and is limited by inner walls which constitute the locking hole. The rubber sleeve is uninterruptedly wrapped on the tail projecting body of the stem rod and at least a part of the outer circumference of the bush. The blind rivet has sealing and anti-corrosion functions, in particular applicable to structural connection of liquid storage space.
Description
technical field [0001] The invention belongs to the technical field of design and manufacture of fasteners, and in particular relates to a controllable threaded screw with a rubber sealing bush. Background technique [0002] In the design process of high-end equipment such as aerospace, considering the factors of volume and weight, the structural design is generally relatively compact. The connection and installation space of these compactly designed structural parts is relatively narrow. It needs to be installed on both sides, and cannot meet the installation requirements of these occasions. Therefore, in these places where the installation space is relatively narrow and it is not convenient for double-sided operation, riveting is generally used. The riveting method used in structural joints is generally blind rivets. Blind rivets have the characteristics of light weight, more reliable connection, high strength, convenient and quick installation, etc., and have been widely...
Claims
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IPC IPC(8): F16B19/08
CPCF16B19/08
Inventor 桂林景胡隆伟王川张晓玲吴琳琅张坤
Owner AEROSPACE PRECISION PROD INC LTD