CN103134016A - Telescopic rod and lamp comprising the same - Google Patents
Telescopic rod and lamp comprising the same Download PDFInfo
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- CN103134016A CN103134016A CN2011103776006A CN201110377600A CN103134016A CN 103134016 A CN103134016 A CN 103134016A CN 2011103776006 A CN2011103776006 A CN 2011103776006A CN 201110377600 A CN201110377600 A CN 201110377600A CN 103134016 A CN103134016 A CN 103134016A
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- lower beam
- piston
- expansion link
- blow vent
- upper boom
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Abstract
A telescopic rod comprises an upper rod and a lower rod, wherein the lower rod is sleeved on the upper rod. The telescopic rod is characterized by further comprising a piston, a stopping piece assembly and a fixing device, wherein the piston is fixed on the upper rod and is contained inside one end inside the lower rod, and the piston is connected inside the lower rod in a sliding mode. An air channel formed inside the piston comprises a first ventilation port and a second ventilation port, wherein the first ventilation port is arranged at one end, facing towards the lower rod, of the piston, and the second ventilation port is communicated with the outside. The stopping piece assembly comprises a fixing part and a shield part, wherein the fixing part and the shield part are arranged relative to each other, and the fixing part is connected with one end, facing towards the lower rod, of the piston. The shield part comprises a ventilation hole, wherein the aperture of the ventilation hole is smaller than that of the first ventilation port, when air is absorbed from the first ventilation port, the shield part shields the first ventilation port, when the air is sprayed out of the first ventilation port, the shield part rotates towards the direction away from the first ventilation port, and the fixing device is fixed on the lower rod to be used for fixing the position of the upper rod relative to the lower rod.
Description
Technical field
The present invention relates to a kind of lighting device, relate in particular to a kind of expansion link and have the light fixture of this expansion link.
Background technology
At present, a lot of two joints or the two above expansion links of joint are arranged on market, when expansion link need to reclaim, upper slide bar need to be recovered in drop shot to reduce height or to reduce volume.When if the comparison in equipment of installing when expansion link upper slide bar top is heavy, lighting for example.In case unclamp the locking device of upper slide bar and drop shot, just because the effect of weight is glided rapidly, the equipment of easily installing to the top causes damage to upper slide bar.
Summary of the invention
The object of the present invention is to provide a kind of light fixture that has the expansion link of pooling feature and have this expansion link.
In order to solve the problems of the technologies described above, the invention provides a kind of expansion link, described expansion link comprises upper boom and lower beam, described low stem casing is located on described upper boom.described expansion link also comprises piston, catch assembly and fixture, described piston is fixed in described upper boom and is contained in the interior end of described lower beam, and described piston is slidably connected in described lower beam, offer an air flue in described piston, described air flue comprises the first blow vent and the second blow vent, described the first blow vent is opened in described piston towards an end of described lower beam, described the second blow vent is in communication with the outside, described catch assembly comprises fixed part and the occlusion part that is oppositely arranged, described fixed part is connected in described piston towards an end of described lower beam, described occlusion part comprises passage, described passage aperture is less than described the first blow vent, when gas is sucked by described the first blow vent, described occlusion part blocks in described the first blow vent place, when gas is sprayed by described the first blow vent, described occlusion part rotates towards the direction away from described the first blow vent, described fixture is fixed on described lower beam, be used for fixing described upper boom with respect to the position of described lower beam.
Wherein, described catch assembly also comprises kink, and described kink is connected between described fixed part and described occlusion part, and described occlusion part rotates relative to described fixed part at described kink place.
Wherein, described kink is made by flexible material.
Wherein, described kink is damp hinge.
Wherein, the aperture of described the first blow vent is more than or equal to 1/10th of described lower beam internal diameter, less than or equal to 1/5th of described lower beam internal diameter.
Wherein, described catch assembly adopts polypropylene to make.
Wherein, described fixture comprises locking nut and taper tightening sleeve, the small end of described taper tightening sleeve is sheathed on described upper boom, and the small end of described taper tightening sleeve offers many breach that axially arrange along described tightening sleeve, the relatively described lower beam of the large end of described taper tightening sleeve is fixed, described locking nut is threadedly connected to outside described taper tightening sleeve small end, the conical surface of the screw thread inner peripheral surface of described locking nut for matching with described taper tightening sleeve.
Wherein, described piston also sheathed one is used for sealing the sidewall of described piston and the annular element of described lower beam inwall gap, described annular element employing sealing ring or damping ring towards an end of described lower beam.
Wherein, offer card and groove on the sidewall of described piston, described fixture also comprises alignment pin, and described alignment pin penetrates in described lower beam outer wall, and telescopically extends in described card and groove.
Correspondingly, the present invention also provides a kind of light fixture, and described light fixture comprises above-mentioned expansion link and light fixture, and described light fixture is fixed in described upper boom away from an end of described lower beam.
Expansion link provided by the invention arranges described catch assembly by the first blow vent place at described piston, when described upper boom falls, reduces the air inflow of described the first blow vent, has prevented from that described upper boom from gliding fast to cause the damage of the equipment of fixing on upper boom.
In addition, when described upper boom was extracted out from described lower beam, described occlusion part was opened described the first blow vent towards the direction bending away from described the first blow vent, and described upper boom can be extracted out fast from described lower beam.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the below will do to introduce simply to the accompanying drawing of required use in embodiment, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the light fixture that provides of first embodiment of the invention;
Fig. 2 is the II partial enlarged drawing partly of the light fixture of Fig. 1;
Fig. 3 is the III partial enlarged drawing partly of the light fixture of Fig. 1;
Fig. 4 is the schematic diagram of the catch assembly of Fig. 1 light fixture;
Fig. 5 is the schematic diagram of the light fixture of Fig. 1 when rising;
Fig. 6 is the schematic diagram of the light fixture that provides of second embodiment of the invention;
Fig. 7 is the partial enlarged drawing of VII of the light fixture of Fig. 6.
The specific embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 4, a kind of light fixture 1 that embodiment of the present invention provides, described light fixture 1 comprises an expansion link 100 and light fixture 200, described light fixture 200 is fixed in an end of described expansion link 100.
Described expansion link 100 comprises upper boom 10, lower beam 20, piston 30, catch assembly 40, adapter sleeve 50 and fixture 60.Described upper boom 10 and lower beam 20 are all cylindrical shapes.Certainly, in other embodiments, described upper boom 10 also can adopt solid.Described lower beam 20 is sheathed on described upper boom 10.Described lower beam 20 comprises the first openend 21.Described upper boom 10 inserts described lower beam 20 from described the first openend 21.
Described upper boom 10 comprises the second openend 11 and the stiff end 12 that is oppositely arranged.Described upper boom 10 inserts described lower beam 20 from described the second openend 11.Described light fixture 200 is fixed in described upper boom 10 away from an end of described lower beam 20, i.e. described stiff end 12.
Described piston 30 is fixed in described upper boom 10 and is contained in the interior end of described lower beam 20.In present embodiment, described piston 30 is fixed in described the second openend 11.Described piston 30 is slidably connected in described lower beam 20.Described piston 30 comprises first end 31, the second end 32 and sidewall 33.Described first end 31 is fixed in an end of described upper boom 10, and described the second end 32 is towards described lower beam 20, and described sidewall 33 matches with described lower beam 20 inwalls.In present embodiment, described first end 31 is fixed in the second openend 11 of described upper boom 10.Leave a small amount of gap between described sidewall 33 and described lower beam 20 inwalls, can coating lubricating oil or lubricating grease between described sidewall 33 and described lower beam 20 inwalls.
Offer an air flue 34 in described piston 30.Described air flue 34 comprises the first blow vent 34a and the second blow vent 34b, described the first blow vent 34a is opened in described the second end 32, be communicated with described lower beam 20 inner chambers, the aperture of described the first blow vent 34a is less than the internal diameter of described lower beam 20, and described the second end 32 also offers counterbore 32a.Described the second blow vent 34b is opened on described sidewall 33.
Described air flue 34 can be L shaped air flue or T shape air flue.When described air flue 34 was T shape air flue, described air flue 34 comprised described first a blow vent 34a and two described the second blow vent 34b.In present embodiment, described air flue 34 is T shape air flues.
Described catch assembly 40 comprises fixed part 41, occlusion part 42 and the kink 43 that is oppositely arranged, and described fixed part 41 is connected in the second end 32 of described piston 30, and described occlusion part 42 is contained in described counterbore 32a.Described kink 43 is connected between described fixed part 41 and described occlusion part 42, and described occlusion part 42 rotates relative to described fixed part 41 at described kink 43 places.Described occlusion part 42 comprises passage 42a, and described passage 42a aperture is less than described the first blow vent 34a.In present embodiment, described catch assembly 40 adopts polypropylene to make.Because the polypropylene folding changes, so described catch assembly 40 can repeatedly bend.Described kink 43 is the slightly thin part of more described fixed part 41.Certainly, in other embodiments, also can need not kink 43.Described fixed part 41 and occlusion part 42 also directly connect.Described kink 43 also can adopt flexible material to make, and the occlusion part 42 of described catch assembly 40 and fixed part 41 adopt other materials.Perhaps described kink 43 also can adopt damp hinge to realize being rotationally connected between described occlusion part 42 and fixed part 41.For described occlusion part 42 is better coordinated with described the first blow vent 34a, described occlusion part 42 also is processed with flange 42b towards the end face of described the first blow vent 34a.
Described fixed part 41 offers through hole 41a, passes described through hole 41a by screw 9 and described fixed part 41 is fixed in the second end 32 of described piston 30.In order to make described occlusion part 42 play cushioning effect, be unlikely to slide in the time of can making again described upper boom 10 retract described lower beam 20 too slow, the aperture of the passage 42a of described occlusion part 42 is more preferably greater than equaling 1/10th of described lower beam 20 internal diameters, less than or equal to 1/5th of described lower beam 20 internal diameters.
Described adapter sleeve 50 1 ends 51 are fixed in described lower beam 20 towards an end of described upper boom 10, and the other end 52 of described adapter sleeve 50 is sheathed on described upper boom 10 outsides, and described fixture 60 is fixed on described adapter sleeve 50.In present embodiment, described adapter sleeve 50 1 ends 51 are fixed in the first openend 21 of described lower beam 20.Described adapter sleeve 50 is cylindrical shape.
When described upper boom 10 is stretched out with respect to described lower beam 20, keep relative positioning between the two.Utilize the fixing described upper boom 10 of described fixture 60.Described fixture 60 comprises locking nut 61 and taper tightening sleeve 62.The small end of described taper tightening sleeve 62 is sheathed on described upper boom 10, and the small end of described taper tightening sleeve 62 offers many breach that axially arrange along described taper tightening sleeve 62, the relatively described lower beam 20 of the large end of described taper tightening sleeve 62 is fixing, and described locking nut 61 is threadedly connected to outside described taper tightening sleeve 62 small ends.The conical surface of the screw thread inner peripheral surface of described locking nut 61 for matching with described taper tightening sleeve 62, and the size of the screw thread inner peripheral surface of described locking nut 61 is less than the size of described taper tightening sleeve 62.With respect to described taper tightening sleeve 62 during to large end spiral, the screw thread inner peripheral surface of described locking nut 61 can be oppressed the outer peripheral face of described taper tightening sleeve 62 when described locking nut 61.In present embodiment, the large end of described taper tightening sleeve 62 is fixed in the other end 52 of described adapter sleeve 50.Described locking nut 61 1 ends are threaded with described taper tightening sleeve 62, and an end is sheathed on the other end 52 of described adapter sleeve 50.
When being screwed down described locking nut 61, its screw thread inner peripheral surface can be oppressed described taper tightening sleeve 62, make the breach of described taper tightening sleeve 62 diminish, thereby described taper tightening sleeve 62 is held described upper boom 10 tightly, make described upper boom 10 not move by relatively described lower beam 20.When upwards unscrewing described locking nut 61, the screw thread inner peripheral surface of described locking nut 61 reduces the power of described taper tightening sleeve 62, and the breach of described taper tightening sleeve 62 restores to the original state, and it is large that the internal diameter of described taper tightening sleeve 62 becomes.Make described upper boom 10 to move up and down by relatively described lower beam 20, thereby stretch out, lock.That described fixture 60 can play is fixing, prevent the effect of rotating.
By the first blow vent 34a place at described piston 30, described catch assembly 40 is set in the present invention, when described upper boom 10 falls, because the inwall gap of piston 30 and described lower beam 20 is very little, so air is difficult for passing through, thereby make described air to discharge from the air flue 34 of described piston 30.When gas is sucked by described the first blow vent 34a, described occlusion part 42 is below under the drive of air, abut in described the first blow vent 34a place, thereby block in described the first blow vent 34a, reduce the air inflow of described the first blow vent 34a, described upper boom 10 is slowly glided, prevented that the quick downslide of described upper boom 10 from causing the damage of described light fixture 200.In addition, when described upper boom 10 is extracted out from described lower beam 20, gas is by described the first blow vent 34a ejection, described occlusion part 42 below under the drive of air towards the direction bending away from described the first blow vent 34a, open described first blow vent 34a(please refer to the drawing 5).Described upper boom 10 can be extracted out fast from described lower beam 20.
In addition, because described occlusion part 42 covers on described the first blow vent 34a, so stuck problem in the time of can preventing that the gas pearl from blocking described the first blow vent 34a.Simultaneously, described catch assembly 40 can adopt a flexible material just can make, so simple in structure, with low cost.
See also Fig. 6 and Fig. 7, the light fixture 2 that provides for second embodiment of the invention.The difference of the light fixture 1 of described light fixture 2 and the first embodiment is, the second end 132 sheathed of piston 130 is used for sealing the sidewall 133 of described piston 130 and the annular element 70 of lower beam 120 inwall gaps, and described annular element 70 adopts sealing ring or damping ring.In present embodiment, the damping ring that described annular element 70 adopts nylon to make.The cross section of described annular element 70 is Y-shaped.The second end 132 of described piston 130 offers cannelure 132a, and described cannelure 132a is used for accommodating described annular element 70.
Offer card and groove 133a on the sidewall 133 of described piston 130, fixture 160 comprises alignment pin 161, stop axle sleeve 162, alignment pin cap 163 and flexible member 164, described alignment pin 161 penetrates in described lower beam 120 outer walls, and telescopically extends in described card and groove 133a.Described alignment pin 161 can be threadedly connected to described lower beam 120 outer walls or adopt the fixing described alignment pin 161 of described flexible member 164.In present embodiment, described stop axle sleeve 162 is fixed on adapter sleeve 140.Described alignment pin 161 is mounted slidably in described stop axle sleeve 162, one end of described alignment pin 161 is resisted against on the card and groove 133a of described piston 130, one end extends to outside described lower beam 120 and is connected with described alignment pin cap 163, between described stop axle sleeve 162 and described alignment pin 161, be provided with described alignment pin 161 to described piston 130 directions against flexible member 164.Described alignment pin 161 can prevent that described upper boom 110 accident in the process that relatively described lower beam 120 stretches out from deviating from, and prevents that simultaneously the tightening sleeve lost efficacy.
Expansion link provided by the invention arranges described catch assembly by the first blow vent place at described piston, when described upper boom falls, reduces the air inflow of described the first blow vent, has prevented from that described upper boom from gliding fast to cause the damage of the equipment of fixing on upper boom.
In addition, when described upper boom was extracted out from described lower beam, described occlusion part was opened described the first blow vent towards the direction bending away from described the first blow vent, and described upper boom can be extracted out fast from described lower beam.
Certainly, described expansion link also can be applicable on other occasions or device that need lifting, flexible operation.
The above is the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (10)
1. expansion link, described expansion link comprises upper boom and lower beam, described low stem casing is located on described upper boom, it is characterized in that, described expansion link also comprises piston, catch assembly and fixture, described piston is fixed in described upper boom and is contained in the interior end of described lower beam, and described piston is slidably connected in described lower beam, offer an air flue in described piston, described air flue comprises the first blow vent and the second blow vent, described the first blow vent is opened in described piston towards an end of described lower beam, described the second blow vent is in communication with the outside, described catch assembly comprises fixed part and the occlusion part that is oppositely arranged, described fixed part is connected in described piston towards an end of described lower beam, described occlusion part comprises passage, described passage aperture is less than described the first blow vent, when gas is sucked by described the first blow vent, described occlusion part blocks in described the first blow vent place, when gas is sprayed by described the first blow vent, described occlusion part rotates towards the direction away from described the first blow vent, described fixture is fixed on described lower beam, be used for fixing described upper boom with respect to the position of described lower beam.
2. expansion link according to claim 1, is characterized in that, described catch assembly also comprises kink, and described kink is connected between described fixed part and described occlusion part, and described occlusion part rotates relative to described fixed part at described kink place.
3. expansion link according to claim 2, is characterized in that, described kink is made by flexible material.
4. expansion link according to claim 2, is characterized in that, described kink is damp hinge.
5. expansion link according to claim 1, is characterized in that, the aperture of described the first blow vent is more than or equal to 1/10th of described lower beam internal diameter, less than or equal to 1/5th of described lower beam internal diameter.
6. expansion link according to claim 1, is characterized in that, described catch assembly adopts polypropylene to make.
7. expansion link according to claim 1, it is characterized in that, described fixture comprises locking nut and taper tightening sleeve, the small end of described taper tightening sleeve is sheathed on described upper boom, and the small end of described taper tightening sleeve offers many breach that axially arrange along described tightening sleeve, the relatively described lower beam of the large end of described taper tightening sleeve is fixed, described locking nut is threadedly connected to outside described taper tightening sleeve small end, the conical surface of the screw thread inner peripheral surface of described locking nut for matching with described taper tightening sleeve.
8. expansion link according to claim 1, is characterized in that, described piston also sheathed one is used for sealing the sidewall of described piston and the annular element of described lower beam inwall gap, described annular element employing sealing ring or damping ring towards an end of described lower beam.
9. expansion link according to claim 1, is characterized in that, offers card and groove on the sidewall of described piston, and described fixture also comprises alignment pin, and described alignment pin penetrates in described lower beam outer wall, and telescopically extends in described card and groove.
10. light fixture, described light fixture comprise as the described expansion link of claim 1-9 any one and light fixture, and described light fixture is fixed in described upper boom away from an end of described lower beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377600.6A CN103134016B (en) | 2011-11-24 | 2011-11-24 | Expansion link and there is the light fixture of this expansion link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110377600.6A CN103134016B (en) | 2011-11-24 | 2011-11-24 | Expansion link and there is the light fixture of this expansion link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103134016A true CN103134016A (en) | 2013-06-05 |
| CN103134016B CN103134016B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110377600.6A Active CN103134016B (en) | 2011-11-24 | 2011-11-24 | Expansion link and there is the light fixture of this expansion link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103134016B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331244A (en) * | 2018-09-28 | 2019-02-15 | 德州飚丰信息技术有限公司 | Medicinal intelligent drainage device |
| CN115388346A (en) * | 2022-09-30 | 2022-11-25 | 深圳市尚为照明有限公司 | Portable lifting lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2381735Y (en) * | 1998-09-15 | 2000-06-07 | 丹东远大机械有限公司 | Anti-gripping cylinder for opening/shutting car door |
| CN2514204Y (en) * | 2001-05-16 | 2002-10-02 | 葛文宇 | Movable joint type quick-assembling pipe fitting |
| CN2568945Y (en) * | 2002-09-06 | 2003-08-27 | 深圳市海洋王投资发展有限公司 | Omnibearing automatic floodlight |
| CN1871435A (en) * | 2003-10-08 | 2006-11-29 | 开利公司 | Reciprocating compressor with enlarged valve seat area |
| CN101886799A (en) * | 2009-05-13 | 2010-11-17 | 海洋王照明科技股份有限公司 | Expansion bar |
| CN201958116U (en) * | 2010-09-16 | 2011-09-07 | 长城汽车股份有限公司 | Small lift table |
-
2011
- 2011-11-24 CN CN201110377600.6A patent/CN103134016B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2381735Y (en) * | 1998-09-15 | 2000-06-07 | 丹东远大机械有限公司 | Anti-gripping cylinder for opening/shutting car door |
| CN2514204Y (en) * | 2001-05-16 | 2002-10-02 | 葛文宇 | Movable joint type quick-assembling pipe fitting |
| CN2568945Y (en) * | 2002-09-06 | 2003-08-27 | 深圳市海洋王投资发展有限公司 | Omnibearing automatic floodlight |
| CN1871435A (en) * | 2003-10-08 | 2006-11-29 | 开利公司 | Reciprocating compressor with enlarged valve seat area |
| CN101886799A (en) * | 2009-05-13 | 2010-11-17 | 海洋王照明科技股份有限公司 | Expansion bar |
| CN201958116U (en) * | 2010-09-16 | 2011-09-07 | 长城汽车股份有限公司 | Small lift table |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331244A (en) * | 2018-09-28 | 2019-02-15 | 德州飚丰信息技术有限公司 | Medicinal intelligent drainage device |
| CN115388346A (en) * | 2022-09-30 | 2022-11-25 | 深圳市尚为照明有限公司 | Portable lifting lamp |
| CN115388346B (en) * | 2022-09-30 | 2023-08-15 | 深圳市尚为照明有限公司 | Portable lifting lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103134016B (en) | 2016-09-14 |
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