CN213144623U

CN213144623U - Bimetal piston for pneumatic mechanism

Info

Publication number: CN213144623U
Application number: CN202021789098.0U
Authority: CN
Inventors: 关建国; 于忠芬
Original assignee: Tianjin Kepowell Technology Development Co ltd
Current assignee: Tianjin Kepowell Technology Development Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-05-07
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a bimetallic piston for pneumatic mechanism, which comprises a piston, movable groove, first logical groove, second logical groove and third logical groove have been seted up respectively to the one end of piston, first logical groove and third logical groove are equallyd divide and do not set up with the second logical groove is perpendicular, the inner wall swing joint in movable groove has the connecting rod, the corresponding first fixed surface who leads to the groove position of connecting rod is connected with the locating lever. The utility model discloses an earlier rotate the thread bush, and make the thread bush remove to the inner wall one end of holding tank, thereby make piston and connecting rod can relative motion, then drive the locating lever through the connecting rod and remove to second through groove inner wall department from the inner wall that the third led to the groove, rotate the connecting rod, and make the connecting rod drive the locating lever and remove to the inner wall that leads to the groove first from second through groove inner wall, extract connecting rod and locating lever from the inner wall that moves about groove and first through groove this moment, accomplish the dismantlement of piston and connecting rod promptly, and is simple in operation, thereby realize convenient to detach's purpose.

Description

Bimetal piston for pneumatic mechanism

Technical Field

The utility model relates to a bimetal piston technical field specifically is a bimetal piston for pneumatic mechanism.

Background

The piston is a reciprocating element in the cylinder body of the automobile engine. The basic structure of the piston can be divided into a crown, a crown and a skirt. The piston crown is the main part that makes up the combustion chamber and its shape is related to the combustion chamber form chosen. The gasoline engine mostly adopts a flat-top piston, and has the advantage of small heat absorption area. The top of the piston of diesel engine is often provided with various pits, the specific shape, position and size of the pits are all adapted to the requirements of forming and burning the mixed gas of the diesel engine, and the bimetallic piston consists of an aluminum piston disc and a steel piston shaft.

However, in the prior art, the piston and the piston shaft are generally welded in actual use, the piston is easy to wear during movement, and the piston shaft are inconvenient to detach and repair during replacement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bimetallic piston for pneumatic mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: including the piston, movable groove, first logical groove, second logical groove and third logical groove have been seted up respectively to the one end of piston, first logical groove and third logical groove are equallyd divide and do not set up perpendicularly with the second logical groove, the inner wall swing joint in movable groove has the connecting rod, the fixed surface that the corresponding first logical groove position of connecting rod was located is connected with the locating lever, locating lever swing joint is at the inner wall in first logical groove, the one end fixedly connected with dead lever of piston position is kept away from to the connecting rod, the one end fixedly connected with piston shaft of connecting rod position is kept away from to the dead lever, the surface swing joint of dead lever has the thread bush.

Preferably, the inside in activity groove is linked together with the inside in first logical groove, second logical groove and third logical groove respectively, the inside in second logical groove is linked together with the inside in first logical groove and third logical groove respectively, the width that the groove was led to first logical groove, second and third all with the big or small looks adaptation of locating lever.

Preferably, the piston shaft has an accommodating groove formed in an end corresponding to the position of the fixing rod, the fixing rod is fixedly connected to the inner wall of the accommodating groove, and the threaded sleeve is movably connected to the inner wall of the accommodating groove.

Preferably, the surface of the fixing rod is provided with a thread groove, and the inner wall of the thread groove is movably connected with the surface of the thread sleeve.

Preferably, the surface of the threaded sleeve is provided with resistance grooves at equal intervals, and the resistance grooves are arranged in parallel with the threaded sleeve.

Preferably, the one end swing joint that the dead lever position was kept away from to the connecting rod has the spring gasket, the one end fixedly connected with torsion spring that the connecting rod position was kept away from to the spring gasket, and torsion spring fixed connection is at the inner wall of activity groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a rotate the thread bush earlier, and make the thread bush move to the inner wall one end of holding tank, thereby make piston and connecting rod can relative motion, then drive the locating lever through the connecting rod and move to second through-groove inner wall department from the inner wall of third through-groove, rotate the connecting rod, and make the connecting rod drive the locating lever and move to the inner wall of first through-groove from second through-groove inner wall, pull out connecting rod and locating lever from the inner wall of activity groove and first through-groove this moment, namely accomplish the dismantlement of piston and connecting rod, the operation is simple, thereby realize the purpose convenient to dismantle;

2. the utility model discloses still through setting up the resistance groove simultaneously for the friction on resistance groove multiplicable thread bush surface conveniently rotates the thread bush, and through setting up spring shim and torque spring, makes spring shim cooperation torque spring can make things convenient for the locating lever to get into the inside in third through groove from the position in second through groove when the connecting rod installation, and the locating lever breaks away from the position in first through groove, thereby makes installation and dismantlement of being convenient for.

Drawings

Fig. 1 is a front sectional view of the overall structure of a bimetallic piston for a pneumatic mechanism according to the present invention;

fig. 2 is an enlarged view of a structure at a position a in fig. 1 of the bimetallic piston for a pneumatic mechanism according to the present invention;

fig. 3 is a cross-sectional view of the double-metal piston structure for the pneumatic mechanism of the present invention.

In the figure: 1. a piston; 2. a movable groove; 3. a first through groove; 4. a second through groove; 5. a third through groove; 6. a connecting rod; 7. positioning a rod; 8. fixing the rod; 9. a piston shaft; 10. accommodating grooves; 11. a threaded sleeve; 12. a resistance groove; 13. a spring washer; 14. a torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: including piston 1, the activity groove 2 has been seted up respectively to the one end of piston 1, first logical groove 3, second logical groove 4 and third logical groove 5, first logical groove 3 and third lead to groove 5 and equally divide and do not set up perpendicularly with second logical groove 4, the inner wall swing joint of activity groove 2 has connecting rod 6, the fixed surface that connecting rod 6 corresponding first logical groove 3 position installs locating lever 7, locating lever 7 swing joint is at the first inner wall that leads to groove 3, the one end fixed mounting that piston 1 position was kept away from to connecting rod 6 has dead lever 8, the one end fixed mounting that connecting rod 6 position was kept away from to dead lever 8 has piston shaft 9, the surperficial swing joint of dead lever 8 has thread bush 11.

The inside in activity groove 2 is linked together with the inside that first logical groove 3, second logical groove 4 and third lead to groove 5 respectively, and the inside that second logical groove 4 is linked together with the inside that first logical groove 3 and third lead to groove 5 respectively, and the width that first logical groove 3, second logical groove 4 and third lead to groove 5 all with the big or small looks adaptation of locating lever 7.

Holding tank 10 has been seted up to the one end that the corresponding dead lever 8 position of piston shaft 9, and dead lever 8 fixed mounting is at the inner wall of holding tank 10, and thread bush 11 swing joint is at the inner wall of holding tank 10.

The surface of the fixing rod 8 is provided with a thread groove, and the inner wall of the thread groove is movably connected with the surface of the thread sleeve 11.

The surface of the thread bush 11 is provided with resistance grooves 12 at equal intervals, and the resistance grooves 12 are arranged in parallel with the thread bush 11.

One end swing joint that dead lever 8 position was kept away from to connecting rod 6 has spring shim 13, the one end fixed mounting that connecting rod 6 position was kept away from to spring shim 13 has torsion spring 14, and torsion spring 14 fixed mounting is at the inner wall of activity groove 2, through setting up resistance groove 12, make the friction on resistance groove 12 multiplicable thread bush 11 surface, conveniently rotate thread bush 11, and through setting up spring shim 13 and torsion spring 14, make spring shim 13 cooperation torsion spring 14 can make things convenient for locating lever 7 to get into the inside that the third led to groove 5 from the position of second through groove 4 when connecting rod 6 installs, and locating lever 7 breaks away from the position that first led to groove 3, thereby make installation and dismantlement convenient for.

The working principle is as follows: when the utility model is used, when the piston 1 and the connecting rod 6 are required to be installed, the position of the positioning rod 7 is aligned with the position of the first through groove 3, the connecting rod 6 is inserted into the movable groove 2, when the connecting rod 6 drives the positioning rod 7 to move to the position of the second through groove 4, the connecting rod 6 is rotated at the moment, the positioning rod 7 moves from the position of the second through groove 4 to the position of the third through groove 5, the thread sleeve 11 is rotated at the moment, the thread sleeve 11 is connected with the surface thread of the fixing rod 8, the thread sleeve 11 is separated from the inner wall of the accommodating groove 10, the piston 1 is driven to move to one end far away from the position of the piston shaft 9, the piston 1 and the connecting rod 6 cannot move in opposite directions, the assembling of the piston 1 and the connecting rod 6 is finished at the moment, the operation is simple, the installation is convenient, and when the disassembly is required, by firstly rotating, and make the thread bush 11 remove to the inner wall one end of holding tank 10, thereby make piston 1 and connecting rod 6 can relative motion, then drive locating lever 7 through connecting rod 6 and remove to the 4 inner walls departments of second through groove from the inner wall of third through groove 5, rotate connecting rod 6, and make connecting rod 6 drive locating lever 7 and lead to the inner wall that the inner wall removed to first through groove 3 from the second, extract connecting rod 6 and locating lever 7 from the inner wall that activity groove 2 and first through groove 3 this moment, accomplish the dismantlement of piston 1 and connecting rod 6 promptly, therefore, the purpose convenient to dismantle is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish 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. Also, the terms "comprises," "comprising," or any other variation 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bimetal piston for a pneumatic mechanism comprises a piston (1), and is characterized in that: activity groove (2), first logical groove (3), the logical groove of second (4) and the logical groove of third (5) have been seted up respectively to the one end of piston (1), first logical groove (3) and third lead to groove (5) and equally divide and do not lead to groove (4) perpendicular setting with the second, the inner wall swing joint in activity groove (2) has connecting rod (6), the corresponding first fixed surface that leads to groove (3) position of connecting rod (6) is connected with locating lever (7), locating lever (7) swing joint is at the first inner wall that leads to groove (3), the one end fixedly connected with dead lever (8) of piston (1) position are kept away from in connecting rod (6), the one end fixedly connected with piston axle (9) of connecting rod (6) position are kept away from in dead lever (8), the surperficial swing joint of dead lever (8) has thread bush (11).

2. The bimetallic piston for pneumatic mechanisms of claim 1, wherein: the inside in activity groove (2) is linked together with the inside that first logical groove (3), second lead to groove (4) and third lead to groove (5) respectively, the inside that the second led to groove (4) is linked together with the inside that first logical groove (3) and third lead to groove (5) respectively, the width that first logical groove (3), second lead to groove (4) and third lead to groove (5) all with the big or small looks adaptation of locating lever (7).

3. The bimetallic piston for pneumatic mechanisms of claim 1, wherein: holding tank (10) have been seted up to the one end that piston shaft (9) corresponding dead lever (8) position, and dead lever (8) fixed connection is at the inner wall of holding tank (10), thread bush (11) swing joint is at the inner wall of holding tank (10).

4. The bimetallic piston for pneumatic mechanisms of claim 1, wherein: the surface of the fixed rod (8) is provided with a thread groove, and the inner wall of the thread groove is movably connected with the surface of the thread sleeve (11).

5. The bimetallic piston for pneumatic mechanisms of claim 1, wherein: resistance grooves (12) are formed in the surface of the threaded sleeve (11) at equal intervals, and the resistance grooves (12) are arranged in parallel with the threaded sleeve (11).

6. The bimetallic piston for pneumatic mechanisms of claim 1, wherein: the one end swing joint that dead lever (8) position was kept away from in connecting rod (6) has spring shim (13), the one end fixedly connected with torsion spring (14) of connecting rod (6) position is kept away from in spring shim (13), and torsion spring (14) fixed connection is at the inner wall of activity groove (2).