CN207701512U - There is the cylinder of self-locking device - Google Patents
There is the cylinder of self-locking device Download PDFInfo
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- CN207701512U CN207701512U CN201721842244.XU CN201721842244U CN207701512U CN 207701512 U CN207701512 U CN 207701512U CN 201721842244 U CN201721842244 U CN 201721842244U CN 207701512 U CN207701512 U CN 207701512U
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Abstract
The utility model provides a kind of cylinder having self-locking device, including：Protecgulum, rear cover, cylinder barrel, piston rod and piston, the protecgulum, cylinder barrel and rear cover are sequentially connected, the piston rod is arranged in the protecgulum, part is set in the cylinder barrel, the piston is set in the cylinder barrel and is connect with the piston rod, it further include preceding self-locking device, the preceding self-locking device includes stop slider, the stop slider includes slide section and retainer, the slide section is an annular hollow body, the piston rod wears the connection slide section, and the retainer protrusion connects one end of the slide section；The diameter of venthole on the protecgulum, the diameter by the nearby side of self-locking device are less than the diameter close to piston side；The position of the retainer is corresponded to by the position of the nearby vent openings of self-locking device side.The cylinder of the utility model has self-locking function, and piston moves again after first unlocking, and will not pull, and support force is strong, and performance is stablized.
Description
Technical field
The utility model is related to can be arrived with self-locking, piston when technical field of fire control more particularly to a kind of piston reach front end
Up to when rear end can also self-locking, the cylinder that support force is strong, performance is stablized.
Background technology
Be both provided with air hole in current various buildings, for can automatically turn on or close the patent numbers of air hole compared with
It is more, it is to be controlled by microcontroller and motor mostly, it is complicated, of high cost and need supply unit, since required power is complete
Portion is provided by electric energy, once lacking electric energy, the device for being turned on and off air hole will be unable to work, to lose its whole work(
Energy.
Now, fire is the common wicked problems that the people of other countries are faced, it is caused to human society
The heavy losses of many life, property.With the development of economy, it is seen everywhere skyscraper in city, due to story height, body
It is few to measure big, densely populated place, escape stair, once fire occurs, consequence is hardly imaginable.It is to cause according to building fire statistics flue gas
The main reason for 80% or so casualties, CO, NH3 etc. in flue gas are virose gas, meanwhile, a large amount of CO2 gas
Body and burning post consumption fall oxygen in air, cause human body anoxia and suffocate；Substance combustion generates amount of heat when fire, makes cigarette
Temperature degree increases rapidly, and up to 250 DEG C, high temperature can also make one to faint, burn incipient fire (5~20min) flue-gas temperature；Work as light
When line passes through flue gas, luminous intensity weakens, and visibility reduces, and is unfavorable for the evacuation of personnel, influences the rescue work of fire fighter, root
According to related research, diffusion velocity is 0.3~0.8m/s to the rate of propagation of flue gas in the horizontal direction, and diffusion velocity is 3 vertically upward
The diffusion velocity of~4m/s, flue gas are fast, therefore, a large amount of cigarettes generated in fire are timely and effectively excluded when fire occurs
Gas, setting heat extraction vent window is just particularly important in all kinds of buildings.
Fire occurs in building and generates a large amount of high temperature dense smokes and toxic gas, linkage vent window is often because power-off can not make
With manual vent window is also opened because unmanned, is influenced fire fighter and is carried out fire fighting and rescue and autoprotection.Application No. is
A kind of window Pneumatic opening device manual, automatic control is dual-purpose of 201510249853.3 disclosure of the invention, using gas cylinder come
Transom window is opened, it can be to avoid available without electricity when fire.However, the opening device still has very big deficiency, such as existing building
Window weight weight, although cylinder for the moment window is pushed open, by the weight of incessantly window, also caused by heat etc. leak
Gas so that window has been opened and closed, and the function of the smoke evacuation disaster relief is lost.
Therefore, there are some technical problems anxious to be resolved for the cylinder of the prior art.
Utility model content
The purpose of this utility model is to provide a kind of cylinders with self-locking device, to solve that gas exists in the prior art
Cylinder occurs gas leakage and generates malfunction, supports soon, the unstable technical problem of performance.
In order to achieve the above objectives, the utility model provides a kind of cylinder having self-locking device, including：Protecgulum, rear cover, cylinder
Cylinder, piston rod and piston, the protecgulum, cylinder barrel and rear cover are sequentially connected, and the piston rod is arranged in the protecgulum, and part is arranged
In in the cylinder barrel, the piston is set in the cylinder barrel and is connect with the piston rod, further includes preceding self-locking device, described
Preceding self-locking device includes stop slider, and the stop slider includes slide section and retainer, and the slide section is an annular hollow
Body, the piston rod wear the connection slide section, and the retainer protrusion connects one end of the slide section；On the protecgulum
Venthole diameter, the diameter by the nearby side of self-locking device is less than the diameter close to piston side；It is filled by nearby self-locking
The position for setting the vent openings of side corresponds to the position of the retainer.
According to a kind of cylinder having self-locking device described in the utility model embodiment, the preceding self-locking device further includes outer
Lid, preceding spring and preceding lock steel ball, the stop slider, preceding spring and outer cover are sequentially put into the protecgulum, and the two of the preceding spring
End is separately connected the stop slider and outer cover, and locking steel ball before described is placed in the protecgulum, and the shaft of the piston rod includes
One is annular from lock crossbeam；There is the retainer arcwall face, the arcwall face to be connected with the preceding lock steel ball.
According to a kind of cylinder having self-locking device described in the utility model embodiment, the preceding self-locking device further includes preventing
Dirt sealing ring, the dust-proof seal ring are an annular hollow body, and the piston rod wears the connection dust-proof seal ring, the cunning
The other end cladding of block portion connects the dust-proof seal ring.
Further include rear self-locking device according to a kind of cylinder having self-locking device described in the utility model embodiment, it is described
Self-locking device includes Piston connecting portion, rear cover deck, pivot pin, mobile piston and rear spring afterwards；The Piston connecting portion includes living
Connecting seat, rear lock steel ball and cutting ferrule are filled in, the piston connecting seat is a hollow cylinder, and one end of the piston connecting seat, which is inserted into, to be connected
The piston is connect, the other end of the piston connecting seat opens up steel ball groove, and it is recessed that the rear lock steel ball is placed on the steel ball
In slot, and lock steel ball limits in the steel ball groove by after with cutting ferrule；The rear spring, mobile piston and rear cover deck are sequentially
It is put into the rear cover, the both ends of the rear spring are separately connected the mobile piston and rear cover；The mobile piston is annular
Ducted body, the pivot pin, which is inserted into, connects the mobile piston, the pivot pin towards one end of the piston be an apex arc
Column.
According to a kind of cylinder having self-locking device described in the utility model embodiment, the rear self-locking device further includes hand
Dynamic pin, described one end sold manually, which is inserted into, connects the rear cover, and is connected with the mobile piston, other one sold manually
End protrudes from the rear cover.
The utility model is improved existing cylinder, is arranged self-locking device on cylinder, can be with when piston reaches front end
Self-locking, when reaching rear end can also self-locking, can be unlocked after venting pressure reaches certain pressure, be a kind of support force by force, performance
Stable cylinder improves the stability of cylinder to effectively prevent being malfunctioned caused by gas leaks.
As a result of above technical characteristic so that the utility model have the following advantages compared with the prior art and
Good effect：
The first, the application be arranged self-locking device, piston reach front end when can with self-locking, reach rear end when can also self-locking,
It can be unlocked after venting pressure reaches certain pressure；When unlock, first unlocks piston and move again, will not pull；
The second, the cylinder supports power of the application is strong, performance is stablized, service life.
Certainly, any one specific embodiment for implementing the utility model content, might not have all of the above simultaneously
Technique effect.
Description of the drawings
Fig. 1 is the preceding self-locking state schematic diagram of the utility model cylinder；
Fig. 2 is the rear self-locking state schematic diagram of the utility model cylinder；
Fig. 3 is the front enlarged diagram of Fig. 1；
Fig. 4 is the rear portion enlarged diagram of Fig. 1；
Fig. 5 is the front enlarged diagram of Fig. 2；
Fig. 6 is the rear portion enlarged diagram of Fig. 2.
Specific implementation mode
Below in conjunction with attached drawing, the utility model is illustrated.
It please refers to Fig.1 and Fig. 2, a kind of cylinder having self-locking device, including：Protecgulum 10, rear cover 20, cylinder barrel 30, piston rod
40 and piston 50, the protecgulum 10, cylinder barrel 30 and rear cover 20 be sequentially connected, the shaft of the piston rod 40 includes an annular self-locking
Groove 41, the piston rod 40 are arranged in the protecgulum 10, are partly set in the cylinder barrel 30, and the piston 50 is set to institute
It states in cylinder barrel 30 and is connect with the piston rod 40, further include preceding self-locking device and rear self-locking device, about matching for self-locking device
It sets, can be selected according to different designs with institute after preceding institute, band or with locks.
As shown in Fig. 1, Fig. 3 and Fig. 5, the preceding self-locking device includes stop slider 61, outer cover 62, preceding spring 63 and preceding lock
Steel ball 64, the stop slider 61, preceding spring 63 and outer cover 62 are sequentially put into the protecgulum 10, the both ends point of the preceding spring 63
The stop slider 61 and outer cover 62 are not connected, and the outer cover 62 is fixedly connected with the protecgulum 10；Lock steel ball 64 is put before described
In the protecgulum 10, the function of preceding lock steel ball 64 is self-locking, as shown, the quantity of the preceding lock steel ball 64 of the application is two
It is a, all should be the protection domain of the application as long as can achieve the purpose that stable self-locking but whether being several.
In addition, the stop slider 61 includes slide section 611 and retainer 612, the slide section 611 is in an annular
Hollow body, the piston rod 40 wear the connection slide section 611, and the slide section 611 has a ring ladder, the preceding spring
63 be exactly that compression is connected at ring ladder；The retainer 612 is an annular hollow body, or corresponding preceding lock steel ball 64
Arc sheet body, the protrusion of the retainer 612 connects one end of the slide section 611, and the retainer 612 has an arc
Face, the arcwall face and the preceding lock steel ball 64 connect.Since the restoring force of preceding spring 63 influences, the retainer 612 is always
Stress towards it is preceding lock steel ball 64 direction.
Preferably, as shown in Figure 3 and Figure 5, the preceding self-locking device further includes dust-proof seal ring 65, the dust-proof seal ring
65 be an annular hollow body, and the piston rod 40, which is worn, connects the dust-proof seal ring 65, other the one of the slide section 611
End cladding connects the dust-proof seal ring 65.The effect of dust-proof seal ring 65 is for impurity to be blocked in outer, the raising cylinder longevity
Life.
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 6, the rear self-locking device includes Piston connecting portion 71, rear cover deck 72, pivot pin
73, mobile piston 74 and rear spring 75；The Piston connecting portion 71 includes piston connecting seat 711, rear lock steel ball 712 and cutting ferrule
713, the piston connecting seat 711 is a hollow cylinder, and one end of the piston connecting seat 711, which is inserted into, connects the piston 50,
The other end of the piston connecting seat 711 opens up steel ball groove 7111, and steel ball groove 7111 protrudes from the piston 50, described
Lock steel ball 712 is placed in the steel ball groove 7111 afterwards, and the limit of lock steel ball 712 is recessed in the steel ball by after with cutting ferrule 713
In slot 7111, as shown, the quantity of the rear lock steel ball 712 of the application is two, but whether being several, as long as can reach steady
Determine the purpose of self-locking, all should be the protection domain of the application；As shown, the side in steel ball groove 7111 towards axle center is
Through-hole, but the diameter of through-hole locks the diameter of steel ball 712 after being less than, locking steel ball 712 later will not drop out from through-hole.
When assembly, the rear spring 75, mobile piston 74 and rear cover deck 72 are sequentially put into the rear cover 20, described
The both ends of spring 75 are separately connected the mobile piston 74 and rear cover 20 afterwards；The mobile piston 74 is annular hollow body, described
Pivot pin 73, which is inserted into, connects the mobile piston 74, and the pivot pin 73 is towards the column that one end of the piston 50 is an apex arc
The column of shape body, the apex arc protrudes from the mobile piston 74；The rear cover deck 72 and the rear cover 20 are fixed
Connection, the rear cover deck 72 are an annular hollow body, and the inner edge of the rear cover deck 72 opens up deck groove.By rear spring
The influence of 75 restoring forces, mobile piston 74 always stress towards the direction of rear cover deck 72, the column of the arc of the pivot pin 73
Body then enters in the ducted body of rear cover deck 72.
Preferably, as shown in Figure 4 and Figure 6, the rear self-locking device further includes manual pin 76, one end of the manual pin 76
Be inserted into and connect the rear cover 20, and connected with the mobile piston 74, the other end of the manual pin 76 protrude from it is described after
Lid 20.In view of the stabilization of connection, one end of pivot pin 73 towards manual pin 76 can be protruded from mobile piston 74, and be inserted into
Connect the manual pin 76.
Preferably, as shown in Figure 3 and Figure 5, the diameter of the venthole 11 on the protecgulum 10, by the one of nearby self-locking device
The diameter of side, be less than close to piston side diameter, diameter be designed to it is different, can make back cavity air inlet be delayed and throttling
Effect.The position that venthole 11 by nearby self-locking device side is open corresponds to the position of the retainer 612, reaches preceding self-locking
When, retainer 612 covers venthole 11, that is, has covered air inlet of the protecgulum 10 toward back cavity.
Then, illustrate the start of the application, as shown in Figure 1, cylinder stress piston 50 is moved to the left, when piston 50 moves to
When front end, it is preceding lock steel ball 64 be absorbed in piston rod 40 annular from lock crossbeam 41, retainer 612 by preceding spring 63 restoring force
It pushes to the right, preceding lock steel ball 64 rolls on the arcwall face of retainer 612, is finally crushed on the lower section of retainer 612, retainer
612 cover venthole 11, form self-locking state.When unlock, front end ventilation, when ventilation is more than 0.1MPa, air pressure is more than preceding spring
When 63 strength, stop slider 61 is first made to be moved to the left unlock, after unlock, air-flow is past just by the venthole 11 on protecgulum 10
Rear end is led on the right side so that the end motion backward of piston 50, by annular, from the inclined-plane of lock crossbeam 41, ring is left in pushing to preceding lock steel ball 64
Shape is from lock crossbeam 41.When front end being avoided to ventilate, if preceding lock does not unlock in time, air pressure, which is turned right, makes the end motion backward of piston 50,
A pulling force pulled firmly is generated, cylinder is made more to be difficult to resolve lock, bad preceding self-locking device is drawn, shortens the cylinder service life.
When piston 50, which is turned right, moves to cylinder rear end, as shown in Fig. 2, lock steel ball 712 initially encounters the arc of pivot pin 73 afterwards
Shape face, when 73 stress of pivot pin is more than the restoring force of rear spring 75, mobile piston 74 to the right, locks steel ball afterwards together with pivot pin 73
When the deck groove of 712 entrance rear cover decks 72, rear steel ball 712 of locking moves radially, and pivot pin 73 is past by the restoring force of rear spring 75
A left side, the limit of lock steel ball 712 is in deck groove by after, formation self-locking state.When unlock, rear end ventilation, ventilation is more than 0.05MPa
When, when air pressure is more than the strength of rear spring 75, so that mobile piston 74 is moved right unlock together with pivot pin 73, lock steel ball afterwards
712 leave deck groove, and after unlock, air-flow is turned left so that piston 50 is toward nose motion.
The utility model is improved existing cylinder, is arranged self-locking device on cylinder, can be with when piston reaches front end
Self-locking, when reaching rear end can also self-locking, can be unlocked after venting pressure reaches certain pressure, be a kind of support force by force, performance
Stable cylinder improves the stability of cylinder to effectively prevent being malfunctioned caused by gas leaks.
As a result of above technical characteristic so that the utility model have the following advantages compared with the prior art and
Good effect：
The first, the application be arranged self-locking device, piston reach front end when can with self-locking, reach rear end when can also self-locking,
It can be unlocked after venting pressure reaches certain pressure；When unlock, first unlocks piston and move again, will not pull；
The second, the cylinder supports power of the application is strong, performance is stablized, service life.
Disclosed above is only several specific embodiments of the utility model, but the utility model is not limited to this, is appointed
What what those skilled in the art can think variation, should all fall within the protection scope of the present utility model.
Claims (5)
1. a kind of cylinder having self-locking device, including：Protecgulum, rear cover, cylinder barrel, piston rod and piston, the protecgulum, cylinder barrel and after
Lid is sequentially connected, and the piston rod is arranged in the protecgulum, is partly set in the cylinder barrel, and the piston is set to the cylinder
It is connect in cylinder and with the piston rod, which is characterized in that further include preceding self-locking device, the preceding self-locking device includes that stop is slided
Block,
The stop slider includes slide section and retainer,
The slide section is an annular hollow body, and the piston rod wears the connection slide section,
The retainer protrusion connects one end of the slide section；
The diameter of venthole on the protecgulum, the diameter by the nearby side of self-locking device are less than close to the straight of piston side
Diameter；The position of the retainer is corresponded to by the position of the nearby vent openings of self-locking device side.
2. a kind of cylinder having self-locking device as described in claim 1, which is characterized in that the preceding self-locking device further includes outer
Lid, preceding spring and preceding lock steel ball, the stop slider, preceding spring and outer cover are sequentially put into the protecgulum, and the two of the preceding spring
End is separately connected the stop slider and outer cover, and locking steel ball before described is placed in the protecgulum, and the shaft of the piston rod includes
One is annular from lock crossbeam；There is the retainer arcwall face, the arcwall face to be connected with the preceding lock steel ball.
3. a kind of cylinder having self-locking device as claimed in claim 2, which is characterized in that the preceding self-locking device further includes preventing
Dirt sealing ring, the dust-proof seal ring are an annular hollow body, and the piston rod wears the connection dust-proof seal ring, the cunning
The other end cladding of block portion connects the dust-proof seal ring.
4. a kind of cylinder having self-locking device as described in claim 1, which is characterized in that further include rear self-locking device, it is described
Self-locking device includes Piston connecting portion, rear cover deck, pivot pin, mobile piston and rear spring afterwards；
The Piston connecting portion includes piston connecting seat, rear lock steel ball and cutting ferrule, and the piston connecting seat is a hollow cylinder, institute
The connection piston is inserted into the one end for stating piston connecting seat, and the other end of the piston connecting seat opens up steel ball groove, described
Lock steel ball is placed in the steel ball groove afterwards, and lock steel ball limits in the steel ball groove by after with cutting ferrule；
Spring, mobile piston and rear cover deck are sequentially put into the rear cover after described, and the both ends of the rear spring are separately connected
The mobile piston and rear cover；The mobile piston is annular hollow body, and the pivot pin, which is inserted into, connects the mobile piston, described
Pivot pin towards one end of the piston be an apex arc column.
5. a kind of cylinder having self-locking device as claimed in claim 4, which is characterized in that self-locking device further includes hand after described
Dynamic pin, described one end sold manually, which is inserted into, connects the rear cover, and is connected with the mobile piston, other one sold manually
End protrudes from the rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842244.XU CN207701512U (en) | 2017-12-26 | 2017-12-26 | There is the cylinder of self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721842244.XU CN207701512U (en) | 2017-12-26 | 2017-12-26 | There is the cylinder of self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207701512U true CN207701512U (en) | 2018-08-07 |
Family
ID=63028651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721842244.XU Active CN207701512U (en) | 2017-12-26 | 2017-12-26 | There is the cylinder of self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207701512U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219856A (en) * | 2019-06-21 | 2019-09-10 | 宁波威曼智能科技有限公司 | A kind of gas-operated lock for attached lock cylinder |
| CN113357221A (en) * | 2021-06-29 | 2021-09-07 | 中船重工中南装备有限责任公司 | Steel ball type hydraulic cylinder with bidirectional mechanical locking |
-
2017
- 2017-12-26 CN CN201721842244.XU patent/CN207701512U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219856A (en) * | 2019-06-21 | 2019-09-10 | 宁波威曼智能科技有限公司 | A kind of gas-operated lock for attached lock cylinder |
| CN110219856B (en) * | 2019-06-21 | 2024-03-08 | 宁波威曼智能科技有限公司 | Pneumatic lock for cylinder with lock |
| CN113357221A (en) * | 2021-06-29 | 2021-09-07 | 中船重工中南装备有限责任公司 | Steel ball type hydraulic cylinder with bidirectional mechanical locking |
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