CN205833477U - A kind of pin-and-hole preventer for piston ink-jet - Google Patents

Abstract

This utility model relates to a kind of pin-and-hole preventer for piston ink-jet, belongs to engine manufacturing technology field, and including shank and insertion section, described insertion section cooperates with piston pin hole, and on described insertion section, the one end away from shank is fixed with magnet.The design by magnet of this technical scheme, make this preventer when being inserted in piston pin hole, can attract each other with the magnet on the preventer being arranged in correspondence position pin-and-hole, improve its fixed effect in piston rotary course, thus preventing it from coming off from pin-and-hole, beneficial effect is notable.

Description

A kind of pin-and-hole preventer for piston ink-jet

Technical field

This utility model relates to a kind of pin-and-hole preventer for piston ink-jet, belongs to engine manufacturing technology field.

Background technology

Electromotor be a kind of can the machine that can be converted into mechanical energy of other form, including as internal combustion engine, external-combustion engine, Motor etc., its application contains the every field that plant equipment is relevant substantially, wherein, important as electromotor of engine piston Assembly, the quality of its quality will directly affect the service life of electromotor.In order to reduce the frictional dissipation during piston uses, Typically requiring in piston face graphite spraying, to improve its greasy property, and this operation needs to carry out the pin-and-hole of piston side Canopy-protected, it is to avoid be splashed into during graphite coating in pin-and-hole, existing canopy-protected operation is general uses stopper to carry out, i.e. Two stoppers are tucked in two pin-and-holes of two pairs, piston both sides respectively.But, due in spraying process in order to ensure graphite The uniformity of coating, it is generally required to allow piston be in rotation status, now stopper is susceptible to the problem getting rid of, and causes graphite to spatter Enter in pin-and-hole, increase rework rate, reduce production efficiency.

Summary of the invention

For solving problems of the prior art, this utility model provides a kind of pin-and-hole for piston ink-jet and protects Device, concrete technical scheme is as follows:

A kind of pin-and-hole preventer for piston ink-jet, including shank and insertion section, described insertion section and piston pin hole Cooperating, on described insertion section, the one end away from shank is fixed with magnet.

As the improvement of technique scheme, described shank includes handle, and described handle side is provided with blocks step, institute State to block and deviate from the side of handle on step there is connection end；In described insertion section with connect position corresponding to end be provided with card and End, described card and end and connection end are the most chimeric；On described insertion section, the one end away from shank is provided with magnet receiving chamber, described Magnet is entrenched in magnet and accommodates intracavity.

As the improvement of technique scheme, described connection end portion has ball bumps.

As the improvement of technique scheme, fluid-filled in described insertion section, described insertion section shape is at External Force Acting Under have followability.

As the improvement of technique scheme, described fluid is gas or liquid, and described insertion section has an outer wall, described outside Wall under external force or can produce deformation under internal flow is oppressed.

As the improvement of technique scheme, the outer wall cylindrical form of described insertion section, described insertion section is wrapped with Soft bed course, described bed course cooperates with piston pin hole.

As the improvement of technique scheme, described bed course has cavity, and described cavity side has opening, described cavity Fit mutual with insertion section；Described bed course side has the different thick end of thickness and thin end, and described thick end is near shank and and chamber The opening homonymy of body, forms inclined-plane between described thick end and thin end.

As the improvement of technique scheme, on described bed course, the end away from shank is bottom surface.

As the improvement of technique scheme, the material of described bed course is sponge.

The technique scheme design by magnet, makes this preventer when being inserted in piston pin hole, it is possible to set The magnet put on the preventer in correspondence position pin-and-hole attracts each other, and improves its fixing effect in piston rotary course Really, thus preventing it from coming off from pin-and-hole, beneficial effect is notable.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of pin-and-hole preventer for piston ink-jet of this utility model；

Fig. 2 is the assembling schematic diagram of this utility model each several part；

Fig. 3 is the structural representation of shank in this utility model；

Fig. 4 is the structural representation of insertion section in this utility model；

Fig. 5 is the structural representation of magnet in this utility model；

Fig. 6 is the structural representation of bed course in this utility model.

Detailed description of the invention

As shown in Figure 1 and Figure 2, this utility model provides a kind of pin-and-hole preventer for piston ink-jet, including shank 10 and insertion section 20, described insertion section 20 cooperates with piston pin hole, and on described insertion section 20, the one end away from shank 10 is solid Surely having magnet 30, wherein magnet 30 can use Nd-Fe-B permanent magnet, owing to piston material is mostly aluminium alloy structure, does not has Ferromagnetism, thus non-interference with the use of magnet 30, the design by magnet 30 of this technical scheme, make this preventer insert When entering in piston pin hole, it is possible to attract each other with the magnet on the preventer being arranged in correspondence position pin-and-hole, improve Its fixed effect in piston rotary course, thus prevent it from coming off from pin-and-hole, beneficial effect is notable.

Further, as shown in Fig. 3, Fig. 4, Fig. 5, described shank 10 includes that handle 11, described handle 11 side are provided with Block step 12, described in block and deviate from the side of handle 11 on step 12 there is connection end 13；In described insertion section 20 be connected The position holding 13 correspondences is provided with fastening end 22, and described fastening end 22 and connection end 13 are the most chimeric；On described insertion section 20 far Being provided with magnet from one end of shank 10 and accommodate chamber 21, described magnet 30 is entrenched in magnet and accommodates in chamber 21；This technical scheme carries Supply shank 10 and the insertion section 20 of a kind of concrete structure, during use, the connection end 13 of shank 10 be fitted in fastening end 22, Realize being relatively fixed of shank 10 and insertion section 20, then magnet 30 is placed into magnet and accommodates in chamber 21, it is achieved magnet 30 He Being relatively fixed of insertion section 20, is then inserted into insertion section 20 in piston pin hole, blocks step 12 and then can carry further The high covering effect to pin-and-hole.

Further, described connection end 13 head has ball bumps 14, and this ball bumps 14 effect in this is to carry Height connects the fastness of structure after end 13 coordinates with card and end 22.

In the above-described embodiments, fluid-filled in described insertion section 20, described insertion section 20 shape has under external force Followability；Described fluid is gas or liquid, and described insertion section 20 has outer wall 23, described outer wall 23 under external force or Deformation can be produced under internal flow compressing.This insertion section 20 can use quality of rubber materials to make, when insufflation gas in rubber After, insertion section 20 can have certain deformation function, and the program i.e. utilizes this function, improves the suitable of the pin-and-hole to various structures By property, such as oval pin-and-hole, inside trumpet shaped pin hole etc., thus without designing the insertion section of different fit structure targetedly 20；And owing to processing technology exists error, though the pin-and-hole of same specification nuance the most again, now according to same fixing The insertion section 20 of shape also can produce the problem that both fiting effects are poor.

Further, outer wall 23 cylindrical form of described insertion section 20, described insertion section 20 is wrapped with soft bed course 40, described bed course 40 cooperates with piston pin hole, and this preferred version is by limiting the structure of insertion section 20, and in insertion section Set up soft bed course 40 outside 20, improve the fiting effect to piston pin hole.

Further, as shown in Figure 6, described bed course 40 has cavity 41, and described cavity 41 side has opening, described Cavity 41 and the mutual fit in insertion section 20；Described bed course 40 side has the different thick end of thickness 42 and Bao Duan 43, described thick end 42 near shank 10 and with the opening homonymy of cavity 41, form inclined-plane 44 between described thick end 42 and Bao Duan 43, this structure with can After the insertion section 20 of deformation coordinates, when this pin-and-hole preventer uses, due to the rotation of piston, magnet 30 is due to self inertia Producing centrifugal force, this centrifugal force will bring it about the deformation of outer wall 23 evagination, and then promotes bed course from compressing insertion section, inside 20 There is elastic deformation in the inclined-plane 44 of 40, thus preferably makes inclined-plane 44 fit to inside pin-and-hole, and improving should in piston rotary course The fixed effect of device.

Further, on described bed course 40, the end away from shank 10 is bottom surface 45, and this bottom surface 45 can be sprayed at graphite During painting protecting magnet 30, meanwhile, bed course 40 can use recoverable material after having elasticity and stress, such as Sponge is used to make.

Claims (9)

1. for a pin-and-hole preventer for piston ink-jet, including shank (10) and insertion section (20), described insertion section (20) Cooperate with piston pin hole, it is characterised in that on described insertion section (20), the one end away from shank (10) is fixed with magnet (30).

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described shank (10) Including handle (11), described handle (11) side is provided with blocks step (12), described in block and deviate from handle on step (12) (11) side has connection end (13)；Position corresponding with connecting end (13) in described insertion section (20) is provided with card and end (22), described card and end (22) and connection end (13) the most chimeric；On described insertion section (20), the one end away from shank (10) sets Being equipped with magnet and accommodate chamber (21), described magnet (30) is entrenched in magnet and accommodates in chamber (21).

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described connection end (13) head has ball bumps (14).

4. a kind of pin-and-hole preventer for piston ink-jet as according to any one of claim 1-3, it is characterised in that institute In stating insertion section (20) fluid-filled, described insertion section (20) shape has followability under external force.

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described fluid is gas Body or liquid, described insertion section (20) have outer wall (23), and described outer wall (23) under external force or is oppressed at internal flow Under can produce deformation.

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described insertion section (20) outer wall (23) cylindrical form, described insertion section (20) are wrapped with soft bed course (40), and described bed course (40) is with alive Plug pin hole cooperates.

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described bed course (40) Having cavity (41), described cavity (41) side has opening, described cavity (41) and insertion section (20) mutually fit；Described pad Layer (40) side has the different thick end (42) of thickness and thin end (43), and described thick end (42) is near shank (10) and and cavity (41) opening homonymy, forms inclined-plane (44) between described thick end (42) and thin end (43).

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described bed course (40) On be bottom surface (45) away from the end of shank (10).

A kind of pin-and-hole preventer for piston ink-jet, it is characterised in that described bed course (40) Material be sponge.