a car piston
A technology of automobile pistons and pistons, applied in the direction of pistons, cylindrical pistons, plungers, etc., can solve problems such as troublesome operation, difficulty in finding, and affecting life, and achieve the effect of convenient operation
Active Publication Date: 2021-07-06
玉环博海机械有限公司
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Problems solved by technology
[0003] Patent No. CN104088716A discloses the invention "A Piston for Automobile". In this patent, the spring 8 that provides tension is installed on the cylinder body. The spring 8 is in a fixed and compressed state for a long time, which is easy to cause fatigue, damage, and affect life. Moreover, during the installation process The positioning rod 10 snaps into the positioning hole 9, and the position is difficult to find, which will cause troublesome operation during installation and matching
Method used
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Embodiment 1
[0035] see Figure 1-7 , a kind of automobile piston, comprising piston body 1, piston pin seat 2, piston pin 3 and auxiliary pin 5; Inside, the inner surface is provided with internal threads, and the lower surface of the piston pin 3 is dug with more than one positioning hole 41, and the positioning groove 42 corresponding to the positioning hole 41 is dug on the piston body 1, and the positioning groove 42 is aligned with the piston pin seat. 2. It is internally connected, and a positioning plug 43 is inserted in the positioning hole 41, and the positioning plug 43 is restricted by the positioning hole 41 and can only move up and down; the outer end of the auxiliary pin 5 is provided with an external thread, and the auxiliary pin 5 is inserted on the piston pin. 3 is connected with the piston pin 3 through internal and external threads; a moving mechanism 6 is connected between the positioning plug 43 and the auxiliary pin 5, and the moving mechanism 6 is located in the pis...
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The invention discloses an automobile piston, which belongs to the field of pistons and comprises a piston body, a piston pin seat, a piston pin and an auxiliary pin; the piston pin seat is provided in the middle of the piston body, and both ends are connected; the piston pin is inserted in the piston pin seat , the inner surface is provided with internal threads, and more than one positioning hole is drilled on the lower surface of the piston pin, and a positioning groove corresponding to the positioning hole is drilled on the piston body, and the positioning groove communicates with the inside of the piston pin seat. The auxiliary pin and the moving mechanism are set inside, and the rotation of the auxiliary pin in the piston pin is converted into the vertical movement of the positioning plug by the moving mechanism, and the position of the positioning plug in the channel formed by the positioning hole and the positioning groove is used to switch. The locking state of the piston pin and the piston pin seat; when the bottom of the positioning plug moves up into the positioning hole, the fixing between the piston pin and the piston pin seat is released; when the bottom of the positioning plug moves down into the positioning groove, the piston pin and the piston pin The positioning between the seats is fixed.
Description
technical field [0001] The invention relates to the field of pistons, more specifically, to an automobile piston. Background technique [0002] The piston is a reciprocating part in the cylinder block of an automobile engine. The basic structure of the piston can be divided into a top, a head and a skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the selected form of the combustion chamber. Gasoline engines mostly use flat-top pistons, which have the advantage of small heat-absorbing areas. There are often various pits on the top of the piston of a diesel engine, and its specific shape, position and size must be adapted to the requirements of the mixture formation and combustion of the diesel engine. [0003] Patent No. CN104088716A discloses the invention "A Piston for Automobile". In this patent, the spring 8 that provides tension is installed on the cylinder body. The spring 8 is in a fixed and compressed state for a l...
Claims
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IPC IPC(8): F02F3/00F16J1/16
CPCF02F3/00F02F2003/0007F16J1/16
Inventor 林海蛟
Owner 玉环博海机械有限公司