CN212250678U

CN212250678U - Cylinder block casting

Info

Publication number: CN212250678U
Application number: CN202020845395.6U
Authority: CN
Inventors: 刘荣; 刘万平
Original assignee: Zhejiang Lizhi Metal Products Technology Co ltd
Current assignee: Zhejiang Lizhi Metal Products Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-12-29
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to the technical field of cylinders, in particular to a cylinder block casting, which comprises a cylinder barrel, a front cover shell and a rear cover shell, wherein the front cover shell and the rear cover shell are arranged at two ends of the cylinder barrel through bolts, a piston block is clamped in the inner wall of the cylinder barrel, a fixed block is arranged at one end of the piston block through bolts, a placing groove is arranged in the rear cover shell, the fixed block is arranged in the placing groove, one end of the placing groove is provided with an air inlet groove, a one-way valve head is welded in the air inlet groove, a dustproof pipe is meshed in the air inlet groove through threads, one side of the placing groove is provided with an air exhaust groove, a control valve is arranged outside the air exhaust groove, an inner cavity is arranged in the one-way valve head, both sides of the inner wall of the inner cavity are respectively provided with an air inlet and, has the characteristics of dust prevention and good air tightness.

Description

Cylinder block casting

Technical Field

The utility model relates to a cylinder technical field specifically is a cylinder block foundry goods.

Background

The cylinder is a cylindrical metal part that guides the piston to reciprocate linearly in the cylinder. The air turns into mechanical energy through the expansion with heat energy in engine cylinder, gaseous accepting the piston compression and improving pressure in compressor cylinder, the cylinder is used extensively, can greatly increase production efficiency and save the manpower, but present cylinder mostly all has certain not enough, on the one hand, ordinary cylinder gets into the dust easily when admitting air, the dust gets into can influence the normal use of cylinder in the cylinder, on the other hand, the inside gas tightness of ordinary cylinder requires highly, the rubber layer that is used for guaranteeing the gas tightness is along with the increase attenuation of live time, therefore the gas tightness can deteriorate, also can influence the normal use of cylinder this moment, so need a cylinder block foundry goods to help to solve above-mentioned problem now.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder block foundry goods to the dust that proposes in solving above-mentioned background art gets into, the problem of the easy wearing and tearing of rubber layer.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a cylinder block foundry goods, includes cylinder, preceding housing and back housing, preceding housing with the back housing passes through the bolt to be installed the cylinder both ends, the inner wall inside callipers of cylinder is equipped with the piston piece, the fixed block is installed through the bolt to piston piece one end, be provided with the standing groove in the back housing, the fixed block sets up in the standing groove, standing groove one end is provided with the air inlet duct, the welded one-way valve head in the air inlet duct, there is the dust tube through threaded engagement in the air inlet duct, standing groove one side is provided with the air discharge duct, the control valve is installed in the air discharge duct outside, be provided with the inner chamber in the one-way valve head, the inner wall both sides of inner chamber are provided with air inlet and exhaust hole respectively, there is the separation blade through a spring welding on the inner.

As a further aspect of the present invention: the welding has the fender ring on the dustproof pipe, the welding of dustproof bottom of tubes portion has the filter screen.

As a further aspect of the present invention: the piston block is provided with a piston rod, a through groove is formed in the front housing, and the piston rod is clamped in the through groove.

As a further aspect of the present invention: the inner wall of the through groove is internally provided with a containing groove, a sealing rubber ring is clamped in the containing groove, and a spring II is bonded between the sealing rubber ring and the inner wall of the containing groove.

As a further aspect of the present invention: the inner wall both sides of holding the groove all are provided with ring groove, sealing rubber ring both sides all are provided with protruding block rubber, protruding block rubber card is established in the ring groove.

As a further aspect of the present invention: the inner wall of the cylinder barrel is welded with a limiting rod, the piston block is provided with a groove hole, and the limiting rod is clamped in the groove hole.

As a further aspect of the present invention: and a buffer ring is adhered to the inner wall of the placing groove.

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

when the utility model is used, the air inlet groove can effectively prevent dust through the dust pipe, and is convenient to clean, and the limiting rod can ensure the stability of the piston rod to be better; after the sealing rubber ring is worn, the spring two can push the sealing rubber ring outwards through elasticity all the time, and the sealing rubber ring can be attached to the piston rod all the time from the beginning, so that the air tightness in the cylinder barrel can be guaranteed to be good.

Drawings

Fig. 1 is a cross-sectional view of the structure of the present invention.

Fig. 2 is a sectional view of the check valve head of the structure of the present invention.

Fig. 3 is a perspective view of the dust-proof tube of the structure of the present invention.

Fig. 4 is a view of the receiving groove of the structure of the present invention.

Fig. 5 is a perspective view of the structure of the present invention.

In the figure: 1-cylinder barrel, 2-front cover shell, 3-rear cover shell, 4-piston block, 5-air inlet groove, 6-one-way valve head, 7-dust-proof pipe, 8-air outlet groove, 9-control valve, 10-air inlet, 11-air outlet, 12-spring I, 13-blocking piece, 14-filter screen, 15-piston rod, 16-containing groove, 17-spring II, 18-sealing rubber ring, 19-limiting rod, 20-buffer ring and 21-convex rubber block.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-5, a cylinder casting comprises a cylinder barrel 1, a front housing 2 and a rear housing 3, wherein the front housing 2 and the rear housing 3 are mounted at two ends of the cylinder barrel 1 through bolts, a piston block 4 is clamped in the inner wall of the cylinder barrel 1, one end of the piston block 4 is mounted with a fixed block through bolts, a placement groove is arranged in the rear housing 3, the fixed block is arranged in the placement groove, one end of the placement groove is provided with an air inlet groove 5, a one-way valve head 6 is welded in the air inlet groove 5, a dust tube 7 is meshed in the air inlet groove 5 through threads, one side of the placement groove is provided with an exhaust groove 8, the outer side of the exhaust groove 8 is provided with a control valve 9, an inner cavity is arranged in the one-way valve head 6, an air inlet 10 and an exhaust hole 11 are respectively arranged at two sides of the inner wall of the inner cavity, a, the bottom of the dustproof pipe 7 is welded with a filter screen 14, the inner wall of the placing groove is bonded with a buffer ring 20, the inner wall of the cylinder barrel 1 is welded with a limiting rod 19, the piston block 4 is provided with a slotted hole, and the limiting rod 19 is clamped in the slotted hole, when the dustproof device is used, the bottom of the dustproof pipe 7 in the air inlet groove 5 is welded with the filter screen 14, so that dust is prevented from entering the cylinder barrel 1 during air inlet, and the dustproof pipe 7 is meshed with the air inlet groove 5 through threads, so that the dustproof pipe 7 can be jacked down to be cleaned, because the air inlet groove 5 is welded with a one-way valve head 6, gas can firstly extrude a spring 12 and downwards push a baffle sheet 13 during air inlet, then the gas passes through the air inlet 10 and the air outlet 11 to enter the cylinder barrel 1, the gas flow of the structure is one-way, so that the gas backflow can be prevented, because the piston block 4 is clamped on the limiting, and the stability of the piston rod 15 can be enhanced.

Referring to fig. 1 and 4, a piston rod 15 is mounted on the piston block 4, a through groove is arranged in the front housing 2, the piston rod 15 is clamped in the through groove, a receiving groove 16 is arranged in the inner wall of the through groove, a sealing rubber ring 18 is clamped in the receiving groove 16, a spring II 17 is bonded between the sealing rubber ring 18 and the inner wall of the receiving groove 16, annular clamping grooves are arranged on both sides of the inner wall of the receiving groove 16, protruding rubber blocks 21 are arranged on both sides of the sealing rubber ring 18, the protruding rubber blocks 21 are clamped in the annular clamping grooves, and the sealing rubber ring 18 is tightly attached to the piston rod 15, so that good air tightness in the cylinder barrel 1 can be ensured, and when the sealing rubber ring 18 is worn, the second spring 17 can always push the sealing rubber ring 18 outwards through elastic force, so that the sealing rubber ring 18 and the piston rod 15 can be always attached together, and the good air tightness in the cylinder barrel 1 can be ensured.

The utility model discloses a theory of operation is: the utility model discloses when using, because the welding of dustproof pipe 7 bottom in the air inlet duct 5 has filter screen 14, therefore dust gets into in the cylinder 1 when preventing to admit air, and because dustproof pipe 7 has the air inlet duct 5 in through the thread engagement, consequently can jack-up unscrew dustproof pipe 7 and clear up, because the welding has check valve head 6 in the air inlet duct 5, therefore gas can extrude spring one 12 earlier and push separation blade 13 downwards when admitting air, then get into cylinder 1 when passing air inlet 10 and exhaust hole 11, the gas flow of this structure is unidirectional, consequently can prevent the gas reflux, because piston block 4 card is established on gag lever post 19, consequently can prevent deviating when the installation, and can strengthen the stability of piston rod 15;

the sealing rubber ring 18 is tightly attached to the piston rod 15, so that the internal air tightness of the cylinder barrel 1 can be guaranteed to be good, and after the sealing rubber ring 18 is worn, the second spring 17 can always push the sealing rubber ring 18 outwards through elastic force, the sealing rubber ring 18 and the piston rod 15 can be always attached together, and the internal air tightness of the cylinder barrel 1 can be guaranteed to be good.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A cylinder block casting comprises a cylinder barrel (1), a front cover shell (2) and a rear cover shell (3), and is characterized in that the front cover shell (2) and the rear cover shell (3) are installed at two ends of the cylinder barrel (1) through bolts, a piston block (4) is clamped in the inner wall of the cylinder barrel (1), a fixed block is installed at one end of the piston block (4) through the bolts, a placing groove is formed in the rear cover shell (3), the fixed block is arranged in the placing groove, an air inlet groove (5) is formed at one end of the placing groove, a one-way valve head (6) is welded in the air inlet groove (5), a dustproof pipe (7) is meshed in the air inlet groove (5) through threads, an exhaust groove (8) is formed in one side of the placing groove, a control valve (9) is installed on the outer side of the exhaust groove (8), an inner cavity is formed in the one-way valve head (6), an air inlet (10, a blocking piece (13) is welded on the inner wall of the inner cavity through a first spring (12), and one side of the blocking piece (13) is close to the inner side of the air inlet (10).

2. The cylinder block casting according to claim 1, wherein: the welding has the fender ring on dustproof pipe (7), the welding has filter screen (14) bottom dustproof pipe (7).

3. The cylinder block casting according to claim 1, wherein: a piston rod (15) is installed on the piston block (4), a through groove is formed in the front housing (2), and the piston rod (15) is clamped in the through groove.

4. A cylinder block casting according to claim 3, characterized in that: a containing groove (16) is arranged in the inner wall of the through groove, a sealing rubber ring (18) is clamped in the containing groove (16), and a second spring (17) is bonded between the sealing rubber ring (18) and the inner wall of the containing groove (16).

5. The cylinder block casting according to claim 4, wherein: the inner wall of the accommodating groove (16) is provided with annular clamping grooves on two sides, the sealing rubber ring (18) is provided with protruding rubber blocks (21) on two sides, and the protruding rubber blocks (21) are clamped in the annular clamping grooves.

6. The cylinder block casting according to claim 1, wherein: the inner wall of the cylinder barrel (1) is welded with a limiting rod (19), the piston block (4) is provided with a groove hole, and the limiting rod (19) is clamped in the groove hole.

7. The cylinder block casting according to claim 1, wherein: and a buffer ring (20) is adhered to the inner wall of the placing groove.