CN103322116B - The fender pile that a kind of tool preventing dust is let out - Google Patents
The fender pile that a kind of tool preventing dust is let out Download PDFInfo
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- CN103322116B CN103322116B CN201310299797.5A CN201310299797A CN103322116B CN 103322116 B CN103322116 B CN 103322116B CN 201310299797 A CN201310299797 A CN 201310299797A CN 103322116 B CN103322116 B CN 103322116B
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- push rod
- gas channel
- outer tube
- connecting portion
- piston
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Abstract
The invention discloses the fender pile that a kind of tool preventing dust is let out, it includes an outer tube, is provided with a containing space in outer tube; One push rod, push rod two ends are respectively equipped with a Piston connecting portion and and are driven portion, Piston connecting portion system is arranged in the containing space of this outer tube slippingly, is provided with one first guiding gutter in push rod, and one end that the first guiding gutter connects with Piston connecting portion extends and is provided with one second guiding gutter; One piston mechanism, piston mechanism combines and is fixed on its Piston connecting portion side of this push rod, and piston mechanism includes a hollow rubber cover and an air throttle, is provided with a gas channel assembly in air throttle; One sealing cover, sealing cover sets firmly mutually with outer tube; The present invention makes the air in outer tube can reach appropriate pressure release effect towards different direction flowing when push rod action, and air all in outer Bottomhole pressure not with extraneous contact, and air can be avoided to leak to reach dustproof and waterproof, and then reach simplified structure and improving product working life.
Description
Technical field
The present invention relates to a kind of fender pile structure, espespecially one can prevent dust from entering to improve the fender pile structure of life of product.
Background technique
In prior art, fender pile is between a kind of object being located at two relative movement, for cushioning the device of its speed of related movement, to reach the collision power reduced between object or the effect reducing noise, such as being applied to can on the door body of automatic returning or drawer sliding rail, and refer to and Figure 1 shows that a known fender pile, it comprises: a body 10, be provided with containing space 101 in this body 10, these body 10 two ends have opening 102,103 respectively, one mandrel rod 11, this mandrel rod 11 one end is provided with elastomer 12, and this elastomer 12 is arranged in its containing space 101 by body 10 one end, one lid 13, this lid 13 is fixed on body 10 the other end, this lid 13 is provided with at least one relief hole 131 again, by this, shown in Fig. 2, in order to do when this mandrel rod 11 moves towards the direction near body 10, this elastomer 12 outer surface namely can rub body 10 inwall and produce resistance, gas simultaneously in its containing space 101 of this body 10 also can make its temporal pressure increase because being compressed, and buffer damping effect can be produced, gas now in this containing space 101 also can be discharged by its relief hole 131 of lid 13, and can appropriate pressure release, in order to do guaranteeing mandrel rod 11 action smoothly, and then make this fender pile can reach the object providing cushioning effect.
This conventional fender pile, though can cushioning effect be provided, but in course of action, it is outside that gas in this containing space 101 can flow out body 10, the gas of body 10 outside also can flow in this body 10, dust in ambient air like this is dirty also may enter body 10 inside thereupon, namely this fender pile does not have dust-proof or water-proof function yet, in addition, when the grease increasing cushioning effect if this elastomer 12 scribbles is as damping oil, to more easily dust be caused to be stained with glutinous, and then cause application range of products to reduce in limited and working life, so, how to develop a kind of features simple structure and the fender pile structure of tool dustproof and waterproof effect, be the technical difficulties place of this case institute for solution.
Summary of the invention
Because existing fender pile structure, because in body, gas communicates with the external world, cause product easily enter dirt and affect working life, the object of therefore the present invention is to develop a kind of features simple structure and the fender pile structure of tool dustproof and waterproof effect.
For reaching above object, the fender pile that system of the present invention provides a kind of tool preventing dust to let out, it comprises: an outer tube, is provided with a containing space in this outer tube; This outer tube has second end of first end and in open shape that is closed shape; One push rod, these push rod two ends are respectively equipped with a Piston connecting portion and and are driven portion, this Piston connecting portion system is arranged in the containing space of this outer tube slippingly, this portion of being driven then protrudes from outside the second end of this outer tube, this push rod is provided with a combined portion in the inside, one end being provided with Piston connecting portion, be provided with one first guiding gutter in this combined portion, one end that this first guiding gutter connects with Piston connecting portion extends and is provided with one second guiding gutter; One piston mechanism, this piston mechanism combines and is fixed on its Piston connecting portion side of this push rod, this piston mechanism includes a hollow rubber cover and an air throttle, this hollow rubber cover outer surface touches mutually with outer tube wall, it is inner that this air throttle is set in hollow rubber cover, and its combined portion of this air throttle and push rod wears fixing mutually, is provided with a gas channel assembly in this air throttle; One sealing cover, sealing lid sets firmly mutually with outer tube, sealing is covered with a push rod movable span again, its portion of being driven of this push rod is through this push rod movable span and protrudes from outside sealing lid, the internal diameter of this push rod movable span equals the external diameter of push rod again, by this, in order to do making the airtight conditions keeping gapless between this push rod and sealing cover.
In a preferred embodiment of the present invention, wherein the external diameter of this Piston connecting portion is greater than the external diameter of this push rod, and the external diameter of this Piston connecting portion is slightly less than the internal diameter of this outer tube, by this, and makes to form water conservancy diversion gap between this push rod its Piston connecting portion and outer tube wall.
In a preferred embodiment of the present invention, wherein this air throttle has a strip body and a connecting part be connected with this strip body, its combined portion of this connecting part and push rod wears fixing mutually, and the length in the more combined portion of length system of this connecting part is short again.
In a preferred embodiment of the present invention, wherein this gas channel assembly includes one and is positioned at intrinsic first gas channel of this strip and second gas channel respectively at this connecting part and the 3rd gas channel, this first gas channel, the second gas channel are sequentially connected through with the 3rd gas channel, and the bore of this first gas channel is greater than the bore of the second gas channel, the bore of this second gas channel is greater than the bore of the 3rd gas channel.
In a preferred embodiment of the present invention, wherein be provided with a solar term hole still further between this second gas channel and the 3rd gas channel, these two ends, solar term hole are connected with the 3rd gas channel with this second gas channel respectively, and the bore in this solar term hole is less than the bore of the 3rd gas channel.
In a preferred embodiment of the present invention, wherein this combined portion prolongs its cylindric shrinkage pool axially arranged of push rod, and this strip body is hollow circuit cylinder, and this connecting part is cylindric axostylus axostyle.
In a preferred embodiment of the present invention, wherein this hollow rubber cover outer surface is provided with at least one strip oil storage portion and at least one ring-type oil storage portion.
In a preferred embodiment of the present invention, wherein this hollow rubber cover front end is provided with a contacting part, and this contacting part outer surface touches mutually with outer tube wall.
In a preferred embodiment of the present invention, wherein this first guiding gutter system prolongs its axially setting of push rod, and this second guiding gutter system prolongs its radial setting of push rod.
In a preferred embodiment of the present invention, wherein this strip body is provided with at least one holes further.
The present invention is by the structural design of air throttle and various conduction pipe, and make the air in outer tube can reach appropriate pressure release effect towards different direction flowing when push rod action, and air all in outer Bottomhole pressure not with extraneous contact, and air can be avoided to leak to reach the effect of dustproof and waterproof, and then make the present invention can reach the effect in simplified structure and improving product working life.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of prior art fender pile.
Fig. 2 is the action schematic diagram of prior art fender pile.
Fig. 3 is the decomposing schematic representation of fender pile of the present invention.
Fig. 4 is the partial schematic diagram of the deflector of its mandrel rod of the present invention.
Fig. 5 is the partial schematic diagram of its air throttle of the present invention.
The combination schematic diagram of Fig. 6 fender pile of the present invention.
The action schematic diagram that its push rod of Fig. 7 fender pile of the present invention stretches out.
Fig. 8 is the action schematic diagram of the flowing gas state of Fig. 7.
Fig. 9 is the action schematic diagram that the present invention is combined with slide rail return device.
Figure 10 is the action schematic diagram of its push rod of the present invention flowing gas state when inwardly advancing.
In accompanying drawing, the mark of each parts is as follows: 10, body; 101, containing space; 102, opening; 103, opening; 11, mandrel rod; 12, elastomer; 13, lid; 131, relief hole; 3, outer tube; 31, first end; 32, the second end; 33, containing space; 35, water conservancy diversion gap; 4, push rod; 41, Piston connecting portion; 42, portion is driven; 43, combined portion; 431, the first guiding gutter; 432, the second guiding gutter; 5, piston mechanism; 51, hollow rubber cover; 511, strip oil storage portion; 512, ring-type oil storage portion; 513, contacting part; 52, air throttle; 53, strip body; 531, first end; 532, the second end; 533, holes; 54, connecting part; 55, gas channel assembly; 551, the first gas channel; 552, the second gas channel; 553, the 3rd gas channel; 554, solar term hole; 6, sealing cover; 61, push rod movable span; 7, slide rail return device.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to shown in Fig. 3 and Fig. 6, the fender pile that system of the present invention provides a kind of tool preventing dust to let out, it comprises:
One outer tube 3, is provided with a containing space 33 in this outer tube 3, this outer tube 3 has a first end 31 in closed shape and second end 32 in opening shape;
One push rod 4, these push rod 4 two ends are respectively equipped with a Piston connecting portion 41 and and are driven portion 42, this Piston connecting portion 41, be driven portion 42 to connect with this push rod 4 respectively, in the present embodiment, this push rod 4, Piston connecting portion 41 is one-body molded with being driven portion 42, wherein this Piston connecting portion 41 is be arranged in the containing space 31 of this outer tube 3 slippingly, this is driven 42, portion and protrudes from outside the second end 32 of this outer tube 3, and as shown in Figure 6, this is driven portion 42 can for combine with the movable objects (such as slide rail or door body) of outside or power is connected, push rod 4 can be driven to be shifted to play cushioning effect in order to do making this movable objects, is possess in art usually to know known by the knowledgeable at this this push rod 4 and this movable objects in conjunction with group mode of establishing, therefore repeat no more, the external diameter of this Piston connecting portion 41 can be greater than the external diameter of this push rod 4 again, and the external diameter of this Piston connecting portion 41 can be slightly less than the internal diameter of this outer tube 3, by this, shown in Fig. 8, and make can be formed between its Piston connecting portion 41 of this push rod 4 and outer tube 3 inwall water conservancy diversion gap 35, in addition, shown in Fig. 4, this push rod 4 is provided with a combined portion 43 in the inside, one end being provided with Piston connecting portion 41, in the present embodiment, this combined portion 43 can be and prolongs its cylindric shrinkage pool axially arranged of push rod 4, one first guiding gutter 431 is provided with again in this combined portion 43, preferably, this first guiding gutter 431 is prolong its axially setting of push rod 4, one end that this first guiding gutter 431 connects with Piston connecting portion 41 again extends and is provided with one second guiding gutter 432, preferably, this second guiding gutter 432 is prolong its radial setting of push rod 4, and as shown in Figure 8.
One piston mechanism 5, this piston mechanism 5 tying is closed and is fixed on its Piston connecting portion 41 side of this push rod 4, this piston mechanism 5 includes hollow rubber cover 51 and an air throttle 52, this hollow rubber overlaps 51 front ends for open shape, this hollow rubber overlaps 51 ends and is closed shape and is provided with an open-work 514, this hollow rubber overlaps 51 front ends and is provided with a contacting part 513, this contacting part 513 outer surface can touch mutually with the inwall of outer tube 3, it is inner that this air throttle 52 is set in hollow rubber cover 51, this air throttle 52 has strip body 53 and a connecting part 54 again, this strip body 53 has first end 531 and the second end 532, its first end 531 of this strip body 51 is connected with connecting part 54, in the present embodiment, this strip body 53 is one-body molded with connecting part 54, this strip body 53 can be a hollow circuit cylinder, and its second end 532 of this strip body 53 is in open shape, this connecting part 54 can be a cylindric axostylus axostyle again, the external diameter of this connecting part 54 another equals the internal diameter of this hollow rubber cover 51 its open-works 514, shown in Fig. 8, its strip body 53 of this air throttle 52 is worn by one end, connecting part 54 to be fixed in this hollow rubber cover 51, and this connecting part 54 be stretch through this open-work 514 and protrude from this hollow rubber cover 51 outside, its combined portion 43 of its connecting part 54 of this air throttle 52 and push rod 4 wears fixing mutually again, preferably, the length in the more combined portion of length system 43 of this connecting part 54 is short, in addition, shown in Fig. 5, this strip body 53 can be provided with at least one holes 533 further, a gas channel assembly 55 is provided with in this air throttle 52 another, this gas channel assembly 55 is this strip body 53 through and combined portion 54, in the present embodiment, this gas channel assembly 55 includes one and is positioned at the second gas channel 552 and the 3rd gas channel 553 that the first gas channel 551 of this strip body 53 and lay respectively at this connecting part 54, wherein this first gas channel 551, second gas channel 552 is sequentially connected through with the 3rd gas channel 553, and the bore of this first gas channel 551 is greater than the bore of the second gas channel 552, the bore of this second gas channel 552 is greater than the bore of the 3rd gas channel 553, in addition, still a solar term hole 554 can be provided with further between this second gas channel 552 and the 3rd gas channel 553, these two ends, solar term hole 554 are connected with the 3rd gas channel 553 with this second gas channel 552 respectively, and the bore in this solar term hole 554 is less than the bore of the 3rd gas channel 553, in addition, this hollow rubber overlaps 51 outer surfaces can be provided with at least one strip oil storage portion 511 and at least one ring-type oil storage portion 512, this strip oil storage portion 511 all can be groove with ring-type oil storage portion 512, by this, and this strip oil storage portion 511 and ring-type oil storage portion 512 can be coated be equipped with lubricant oil, in order to do having lubrication effect to promote the action smooth degree of the present invention.
One sealing cover 6, its second end 32 of sealing lid 6 and outer tube 3 sets firmly mutually, sealing lid 6 is provided with a push rod movable span 61 again, this push rod 4 its to be driven portion 42 be through this push rod movable span 61 and protrude from outside sealing lid 6, the internal diameter of this push rod movable span 61 can equal the external diameter of push rod 4 again, by this, in order to do making the airtight conditions that can keep gapless between this push rod 4 and sealing cover 6.
Refer to shown in Fig. 6 and Fig. 7, stretch out in order to do when this push rod 4, and when its hollow rubber sleeve 51 of this piston mechanism 5 is shifted towards the second end 32 direction near outer tube 3 by the first end 31 of outer tube 3, air in containing space 33 between this push rod 4 and outer tube 3 will be squeezed, now, shown in Fig. 7 and Fig. 8, these air sequentially will pass through this water conservancy diversion gap 35, second guiding gutter 432, first guiding gutter 431, 3rd gas channel 553, second gas channel 552 and the first gas channel 551 and flow in the containing space 33 between this hollow rubber cover 51 and its first end 31 of outer tube 3, simultaneously, the contacting part 513 of this hollow rubber cover 51 its front ends also can because of the active force of air pressure slightly to inside contracting, make temporarily do not touch mutually and form gap between its with outer tube 3 inwall, therefore also can pass through for air, by this, the containing space 33 that this hollow rubber can be avoided to overlap between 51 and its first end 31 of outer tube 3 produces vacuum state, to guarantee that fender pile can regular event, referring again to Figure 9 shows that the present invention is assembled rear schematic diagram with outside return device such as door body return device or slide rail return device 7, the wherein detail structure of this body return device or slide rail return device 7, operating principle and all belong to prior art and non-this case technical characteristics with the mode that is assembled of door body or drawer sliding rail, specifically can with reference to the case such as No. M441705, Taiwan Patent " door body return buffering mechanism " or No. M426336 " the location return device (two) of slide rail ", therefore, when this slide rail return device 7 drives this push rod 4 to stretch out, the present invention can guarantee this slide rail return device 7 action smooth, again when this slide rail return device 7 drives push rod 4 inwardly to push back, shown in Fig. 9 and Figure 10, air in containing space 33 now between this hollow rubber cover 51 and its first end 31 of outer tube 3 will be squeezed, and can comply with and aforementioned contrary operating principle, sequentially by this first gas channel 551, second gas channel 552, 3rd gas channel 553, first guiding gutter 431, second guiding gutter 432 and water conservancy diversion gap 35 and flow back in the containing space 33 between this push rod 4 and outer tube 3, its contacting part 513 of this hollow rubber cover 51 can slightly expand because of the active force with wall friction in outer tube 3 and air pressure and produce buckling deformation simultaneously, in addition, at least one holes 533 is provided with by its strip body 53 of this air throttle 52, therefore air is when by this first gas channel 551, partial air also can be exerted pressure to hollow rubber sleeve 51 through this holes 533, and make this hollow rubber overlap 51 inflatable and with wall friction in outer tube 3, therefore larger cushioned resistance can be produced, buffering function can be provided to this slide rail return device 7 in order to do making the present invention, and then make the present invention can reach the object avoided parts collision or reduce audible noise when drawer sliding rail or door body return and reset.
Referring again to shown in Fig. 3 and Fig. 6, the present invention is by the structural design of air throttle 52 with various conduction pipe, and make the air in outer tube 3 can reach appropriate pressure release effect towards different direction flowing when push rod 4 action, and air all in outer tube 3 flowing and not with extraneous contact, and air can be avoided to leak to reach the effect of dustproof and waterproof, simultaneously, be cylindrical by its strip body 53 of this air throttle 52 with connecting part 54 again, therefore structure shape is simple and can be easy to processing, and then make the present invention can reach the effect in simplified structure and improving product working life; In addition, strip body 53 is provided with again by this air throttle 52, and strip body 53 is set in this hollow rubber cover 51, effect can be provided support to hollow rubber sleeve 51 in order to do making this strip body 53, and can prevent or avoid this hollow rubber cover 51 excessive deformation in action, and then make the present invention can have effect of improving product reliability concurrently; In addition, refer to shown in Fig. 5, this solar term hole 554 is provided with again by between its second gas channel 552 of this air throttle 52 and the 3rd gas channel 553, and the bore in this solar term hole 554 is less than the bore of the 3rd gas channel 553, and the caliber size in each gas channel and solar term hole 554 can be set by moderate change, namely the speed of adjustable pressure release exhaust or air displacement, and can adjust the buffer damping size of fender pile, and then make the present invention can have effect of improving product applicability concurrently according to user's request.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. have the fender pile that preventing dust lets out function, it is characterized in that: comprise: an outer tube, be provided with a containing space in this outer tube, this outer tube has second end of first end and in open shape that is closed shape, one push rod, these push rod two ends are respectively equipped with a Piston connecting portion and and are driven portion, this Piston connecting portion system is arranged in the containing space of this outer tube slippingly, this portion of being driven then protrudes from outside the second end of this outer tube, this push rod is provided with a combined portion in the inside, one end being provided with Piston connecting portion, one first guiding gutter is provided with in this combined portion, one end that this first guiding gutter connects with Piston connecting portion extends and is provided with one second guiding gutter: wherein this first guiding gutter system prolongs push rod it is axially arranged, and this second guiding gutter system prolongs its radial setting of push rod, one piston mechanism, this piston mechanism combines and is fixed on its Piston connecting portion side of this push rod, this piston mechanism includes a hollow rubber cover and an air throttle, this hollow rubber cover outer surface contacts with outer tube wall, it is inner that this air throttle is set in hollow rubber cover, and its combined portion of this air throttle and push rod wears fixing mutually, wherein this air throttle has a strip body and a connecting part be connected with this strip body, its combined portion of this connecting part and push rod wears fixing mutually, the length in the more combined portion of length system of this connecting part is short again, this strip body is provided with at least one holes further, a gas channel assembly is provided with in this air throttle, one sealing cover, its second end of sealing lid and outer tube sets firmly mutually, sealing is covered with a push rod movable span again, its portion of being driven of this push rod is through this push rod movable span and protrudes from outside sealing lid, the internal diameter of this push rod movable span equals the external diameter of push rod again, by this, in order to do making the airtight conditions keeping gapless between this push rod and sealing cover.
2. according to described in claim 1, there is the fender pile that preventing dust lets out function, it is characterized in that: wherein the external diameter of this Piston connecting portion is greater than the external diameter of this push rod, and the external diameter of this Piston connecting portion is slightly less than the internal diameter of this outer tube, by this, make to form water conservancy diversion gap between this push rod its Piston connecting portion and outer tube wall.
3. according to described in claim 1, there is the fender pile that preventing dust lets out function, it is characterized in that: wherein this gas channel assembly includes one and is positioned at intrinsic first gas channel of this strip and second gas channel respectively at this connecting part and the 3rd gas channel, this first gas channel, the second gas channel are sequentially connected through with the 3rd gas channel, and the bore of this first gas channel is greater than the bore of the second gas channel, the bore of this second gas channel is greater than the bore of the 3rd gas channel.
4. according to described in claim 3, there is the fender pile that preventing dust lets out function, it is characterized in that: be wherein provided with a solar term hole still further between this second gas channel and the 3rd gas channel, these two ends, solar term hole are connected with the 3rd gas channel with this second gas channel respectively, and the bore in this solar term hole is less than the bore of the 3rd gas channel.
5. according to there is the fender pile that preventing dust lets out function described in claim 1, it is characterized in that: wherein this combined portion prolongs its cylindric shrinkage pool axially arranged of push rod, and this strip body is hollow circuit cylinder, and this connecting part is cylindric axostylus axostyle.
6. according to there is the fender pile that preventing dust lets out function described in claim 1, it is characterized in that: wherein this hollow rubber cover outer surface is provided with at least one strip oil storage portion and at least one ring-type oil storage portion.
7. according to there is the fender pile that preventing dust lets out function described in claim 1, it is characterized in that: wherein this hollow rubber cover front end is provided with a contacting part, and this contacting part outer surface touches mutually with outer tube wall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299797.5A CN103322116B (en) | 2013-07-17 | 2013-07-17 | The fender pile that a kind of tool preventing dust is let out |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299797.5A CN103322116B (en) | 2013-07-17 | 2013-07-17 | The fender pile that a kind of tool preventing dust is let out |
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| CN103322116A CN103322116A (en) | 2013-09-25 |
| CN103322116B true CN103322116B (en) | 2015-09-09 |
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| CN201310299797.5A Active CN103322116B (en) | 2013-07-17 | 2013-07-17 | The fender pile that a kind of tool preventing dust is let out |
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| CN112195810B (en) * | 2020-09-22 | 2022-04-26 | 无锡天工建设有限公司 | Municipal administration is with formula of taking a breath road surface deceleration strip |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201772008U (en) * | 2010-07-22 | 2011-03-23 | 阮腾仪 | Air pressure buffer rod |
| CN203413012U (en) * | 2013-07-17 | 2014-01-29 | 苏州升德精密电气有限公司 | Buffer rod with functions of dust prevention and escape prevention |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4778819B2 (en) * | 2006-03-27 | 2011-09-21 | 株式会社ニフコ | Speed response type air damper |
| JP5296601B2 (en) * | 2009-05-14 | 2013-09-25 | 株式会社ニフコ | Air damper |
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2013
- 2013-07-17 CN CN201310299797.5A patent/CN103322116B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201772008U (en) * | 2010-07-22 | 2011-03-23 | 阮腾仪 | Air pressure buffer rod |
| CN203413012U (en) * | 2013-07-17 | 2014-01-29 | 苏州升德精密电气有限公司 | Buffer rod with functions of dust prevention and escape prevention |
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| CN103322116A (en) | 2013-09-25 |
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