Composite type set screw
A set screw and composite technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve problems such as insufficient pressing force, difficulty in meeting the use requirements of set screws, and poor torque bearing capacity of threads, etc., to achieve the goal of manufacturing Convenient, conducive to popularization and use, and high positioning reliability
Inactive Publication Date: 2018-11-02
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
Under some specific working conditions (such as insulation isolation protection or surface anti-corrosion protection requirements), it is difficult for set screws made of a single material to meet the use requirements
For example, in order to protect the surface of the fixed parts from being damaged, the set screws of non-metallic materials are often used, but their strength is not as high as that of metal materials, the screw thread has poor torque bearing capacity, and the pressing force is insufficient. Therefore, the tightening screws in the prior art Set screws cannot meet the requirements of insulation isolation protection or surface anti-corrosion protection, but also meet the requirements of strong firmness
Method used
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[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.
[0031] Such as Figure 1 to Figure 6 As shown, the present invention provides a composite set screw 100; including a screw plug part 1 as a threaded connection part and a contact part 2 as a pressing and positioning part, the contact part 2 and the screw plug part 1 are separated and Detachable connection structure design, the contact part 2 is detachably connected to one end of the plug part 1; One end of the plugging part 1 is provided with a concave hole 11, the concave hole 11 can be a through hole or a blind hole, the diameter of the concave hole 11 is D, and the other end of the plugging part 1 is provided with a torque transmission structure; the contact part 2 One end close to the plugging part 1 is provided with an oute...
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The invention discloses a composite type set screw. The set screw comprises a screwed plug part and a contact part, the contact part and the screwed plug part are arranged in a split and detachable-connection structure, the screwed plug part and the contact part are made of two materials, a connecting thread is arranged on the screwed plug part, one end of the screwed plug part is provided with aninner concave hole, the hole diameter of the inner concave hole is D, the other end of the screwed plug part is provided with a torque transmission structure, the end, close to the screwed plug part,of the contact part is provided with an outer boss part which can be mounted in the inner concave hole, the outer diameter of the outer boss part is d, and the end, away from the screwed plug part, of the contact part is provided with a set top abutting part. The composite type set screw can achieve insulation isolation, contact surface protection and other functions while high-strength firm connection is achieved.
Description
technical field [0001] The invention relates to the technical field of connection and fastening of mechanical parts, in particular to a composite set screw. Background technique [0002] A set screw, also known as a stop screw or a set screw, is a screw specially used to fix the relative position of parts. During use, the set screw is screwed into the screw hole of the machine part to be fixed, and the end of the screw is pressed on the surface of another machine part, that is, the former machine part is fixed on the latter machine part. [0003] The current standard set screw is a one-piece construction made of the same material. Under some specific working conditions (such as insulation isolation protection or surface anti-corrosion protection requirements), it is difficult for set screws made of a single material to meet the use requirements. For example, in order to protect the surface of the fixed parts from being damaged, the set screws of non-metallic materials are ...
Claims
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IPC IPC(8): F16B35/02
CPCF16B35/02
Inventor 张宏英米凯夫刘希茂李萌于兴胜张若熙郭添鸣陈超
Owner BC P INC CHINA NAT PETROLEUM CORP