CN203463543U - Piston type sealed nitrogen spring - Google Patents
Piston type sealed nitrogen spring Download PDFInfo
- Publication number
- CN203463543U CN203463543U CN201320569803.XU CN201320569803U CN203463543U CN 203463543 U CN203463543 U CN 203463543U CN 201320569803 U CN201320569803 U CN 201320569803U CN 203463543 U CN203463543 U CN 203463543U
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- CN
- China
- Prior art keywords
- slide bar
- cylinder body
- piston rod
- ring
- nitrogen spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A piston type sealed nitrogen spring comprises a vertically through cylinder body and a piston rod which penetrates into the cylinder body from the lower end of the cylinder body, wherein the cylinder body comprises an upper slide cavity and a lower slide cavity, and the diameter of the lower slide cavity is larger than that of the upper slide cavity; the piston rod comprises an upper slide bar and a lower slide bar, the diameter of the lower slide bar is larger than that of the upper slide bar, the upper slide bar is in sliding fit with the upper slide cavity, the lower slide bar is in sliding fit with the lower slide cavity, a ring-shaped groove is formed in the bottom of the lower slide bar, and al ring is arranged in the ring-shaped groove and in interference fit with the lower slide cavity; and the lower end of the cylinder body is fixedly connected with a base, and a charging valve is arranged on the base. According to the piston type sealed nitrogen spring, the seal ring is arranged at the bottom of the lower slide bar of the piston rod instead of the cylinder body, so that the diameters of the piston rod and the cylinder body can be reduced, moreover, larger spring force is generated in smaller space, and installation space of a mold is saved.
Description
Technical field
The utility model relates to a kind of nitrogen spring, relates in particular to a kind of nitrogen spring of piston type sealing.
Background technique
At present, the seal ring of traditional nitrogen spring is arranged on cylinder body, therefore can increase the diameter of piston rod and cylinder body, has reduced the usability of nitrogen spring, has also taken more mould installing space.
Model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of nitrogen spring that reduces the piston type sealing of piston rod and diameter of cylinder is provided.
The utility model is achieved in that a kind of nitrogen spring of piston type sealing, comprises that the cylinder body and of a up/down perforation penetrates the piston rod in described cylinder body from described cylinder body lower end; Described cylinder body comprises sliding chamber and a downslide chamber on one, and the diameter in described downslide chamber is greater than the diameter in described sliding chamber; Described piston rod comprises a upper slide bar and a lower slide bar, the diameter of described lower slide bar is greater than the diameter of described upper slide bar, described upper slide bar and described sliding chamber are slidably matched, described lower slide bar and described downslide chamber are slidably matched, described lower slide bar bottom offers an annular groove, in described annular groove, be provided with a seal ring, described seal ring and described downslide chamber interference fit; Described cylinder body lower end is fixedly connected with a base, and described base is provided with a gas charging valve.
Particularly, the cross section of described seal ring is Y type or U-shaped.
Further, in described annular groove, be also provided with a Sealing shield ring, described Sealing shield ring and the laminating of described seal ring.
Further, the cooperation place between described cylinder body and base is provided with a lower seal and a jump ring.
Further, on described base, offer a plurality of installation screws.
Further, the upper sliding chamber of described cylinder body and the cooperation place between the upper slide bar of described piston rod are provided with a dust ring and one first guide ring.
Further, the downslide chamber of described cylinder body and the cooperation place between the lower slide bar of described piston rod are provided with one second guide ring.
The utility model is offered an annular groove by the lower slide bar bottom at piston rod, and a seal ring is set in annular groove, and makes seal ring and downslide chamber interference fit, thereby plays the effect of the nitrogen in sealed cylinder block.Because the utility model is seal ring to be arranged on to the bottom of the lower slide bar of piston rod, rather than be arranged on cylinder body, therefore can reduce the diameter of piston rod and cylinder body, and produce larger elastic force pressure in less space, contribute to save the installing space of mould.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the nitrogen spring of a kind of piston type sealing that provides of the utility model embodiment;
Fig. 2 is the cylinder body of nitrogen spring and the schematic diagram of base of a kind of piston type sealing that provides of the utility model embodiment;
Fig. 3 is the schematic diagram of piston rod of the nitrogen spring of a kind of piston type sealing that provides of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described.
As shown in FIG. 1 to 3, the nitrogen spring of a kind of piston type sealing that the utility model embodiment provides, comprises that the cylinder body 1 and of a up/down perforation penetrates the piston rod 2 in cylinder body 1 from cylinder body 1 lower end; Cylinder body 1 comprises sliding chamber 11 and a downslide chamber 12 on one, and the diameter in downslide chamber 12 is greater than the diameter in sliding chamber 11; Piston rod 2 comprises a upper slide bar 21 and a lower slide bar 22, the diameter of lower slide bar 22 is greater than the diameter of upper slide bar 21, upper slide bar 21 is slidably matched with upper sliding chamber 11, lower slide bar 22 is slidably matched with downslide chamber 12, lower slide bar 22 bottoms offer an annular groove 221, in annular groove 221, be provided with a seal ring 23, seal ring 23 and downslide chamber 12 interference fit; Cylinder body 1 lower end is fixedly connected with a base 3, and base 3 is provided with a gas charging valve 31.
Working principle of the present utility model is: first, piston rod 2 is penetrated from cylinder body 1 lower end, and then, piston rod 2 upwards slides into certain position in cylinder body 1, lower slide bar 22 upper ends of piston rod 2 and the upper sliding chamber 11 lower end butts in cylinder body 1, piston rod 2 stops to front slide; Then, again base 3 is fixedly connected on to cylinder body 1 lower end, at this moment, a space is formed on lower slide bar 22 bottoms of base 3 and piston rod 2, space inflated with nitrogen by from the gas charging valve 31 on base 3 to the lower slide bar 22 bottoms formation of base 3 and piston rod 2, when the nitrogen filling reaches certain highpressure, nitrogen forms the bottom that a kind of powerful thrust making progress imposes on piston rod 2, makes tightly butt of the upper end of lower slide bar 22 of piston rod 2 and 11 lower ends, upper sliding chamber in cylinder body 1.In the process sliding up and down at piston rod 2, the seal ring 23 of piston rod 2 bottoms plays the effect of sealing, and the nitrogen in cylinder body 1 can not leaked out.
The utility model is offered an annular groove 221 by lower slide bar 22 bottoms at piston rod 2, and a seal ring 23 is set annular groove 221 is interior, and makes seal ring 23 and downslide chamber 12 interference fit, thereby plays the effect of the nitrogen in sealed cylinder block 1.Because the utility model is seal ring 23 to be arranged on to the bottom of the lower slide bar 22 of piston rod 2, rather than be arranged on cylinder body 1, therefore can reduce the diameter of piston rod 2 and cylinder body 1, and produce larger elastic force pressure in less space, contribute to save the installing space of mould.
Particularly, the cross section of described seal ring 23 is Y type or U-shaped.
Further, in described annular groove 221, be also provided with a Sealing shield ring 24, Sealing shield ring 24 and seal ring 23 laminatings, Sealing shield ring 24 can fixedly positioning seal ring 23, further improves the sealing effect of seal ring 23.
Further, cooperation place between described cylinder body 1 and base 3 is provided with a lower seal 32 and a jump ring 33, lower seal 32 plays the effect of sealing, jump ring 33 is for being fixed to cylinder body 1 base 3, on base 3, offer a plurality of installation screws 34, installation screw 34 is for being installed to miscellaneous part base 3.
Further, upper sliding chamber 11 and the cooperation place between the upper slide bar 21 of piston rod 2 of described cylinder body 1 are provided with a dust ring 13 and one first guide ring 14, dust ring 13 enters in cylinder body 1 for preventing extraneous dust, and the first guide ring 14 is lubricated and leads for the upper slide bar 21 to piston rod 2.
Further, the cooperation place between the downslide chamber 12 of described cylinder body 1 and the lower slide bar 22 of piston rod 2 is provided with one second guide ring 15, the second guide rings 15 and is lubricated and leads for the lower slide bar 22 to piston rod 2.
Further, described piston rod 2 upper ends offer an assembling screw 25, and assembling screw 25 is for being installed to miscellaneous part in piston rod 2.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (7)
1. a nitrogen spring for piston type sealing, is characterized in that, comprises that the cylinder body and of a up/down perforation penetrates the piston rod in described cylinder body from described cylinder body lower end; Described cylinder body comprises sliding chamber and a downslide chamber on one, and the diameter in described downslide chamber is greater than the diameter in described sliding chamber; Described piston rod comprises a upper slide bar and a lower slide bar, the diameter of described lower slide bar is greater than the diameter of described upper slide bar, described upper slide bar and described sliding chamber are slidably matched, described lower slide bar and described downslide chamber are slidably matched, described lower slide bar bottom offers an annular groove, in described annular groove, be provided with a seal ring, described seal ring and described downslide chamber interference fit; Described cylinder body lower end is fixedly connected with a base, and described base is provided with a gas charging valve.
2. the nitrogen spring of a kind of piston type sealing according to claim 1, is characterized in that, the cross section of described seal ring is Y type or U-shaped.
3. the nitrogen spring of a kind of piston type sealing according to claim 1 and 2, is characterized in that,
In described annular groove, be also provided with a Sealing shield ring, described Sealing shield ring and the laminating of described seal ring.
4. the nitrogen spring of a kind of piston type sealing according to claim 1, is characterized in that, the cooperation place between described cylinder body and base is provided with a lower seal and a jump ring.
5. the nitrogen spring of a kind of piston type sealing according to claim 1, is characterized in that, offers a plurality of installation screws on described base.
6. the nitrogen spring of a kind of piston type sealing according to claim 1, is characterized in that, the upper sliding chamber of described cylinder body and the cooperation place between the upper slide bar of described piston rod are provided with a dust ring and one first guide ring.
7. the nitrogen spring of a kind of piston type sealing according to claim 1, is characterized in that, downslide chamber and the cooperation place between the lower slide bar of described piston rod of described cylinder body are provided with one second guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569803.XU CN203463543U (en) | 2013-09-12 | 2013-09-12 | Piston type sealed nitrogen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569803.XU CN203463543U (en) | 2013-09-12 | 2013-09-12 | Piston type sealed nitrogen spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463543U true CN203463543U (en) | 2014-03-05 |
Family
ID=50175910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569803.XU Expired - Lifetime CN203463543U (en) | 2013-09-12 | 2013-09-12 | Piston type sealed nitrogen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463543U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105310A (en) * | 2016-11-24 | 2018-06-01 | 江苏耐玛鑫精密机械有限公司 | Two section of one kind or more piece piston rod type nitrogen gas spring |
| CN108105309A (en) * | 2016-11-24 | 2018-06-01 | 江苏耐玛鑫精密机械有限公司 | A kind of nitrogen gas spring of separate type piston cylinder housing convenient for manufacture |
| CN110131347A (en) * | 2019-06-12 | 2019-08-16 | 重庆特力普尔机械设备有限公司 | A kind of nitrogen gas spring with multiple protection functions |
-
2013
- 2013-09-12 CN CN201320569803.XU patent/CN203463543U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105310A (en) * | 2016-11-24 | 2018-06-01 | 江苏耐玛鑫精密机械有限公司 | Two section of one kind or more piece piston rod type nitrogen gas spring |
| CN108105309A (en) * | 2016-11-24 | 2018-06-01 | 江苏耐玛鑫精密机械有限公司 | A kind of nitrogen gas spring of separate type piston cylinder housing convenient for manufacture |
| CN110131347A (en) * | 2019-06-12 | 2019-08-16 | 重庆特力普尔机械设备有限公司 | A kind of nitrogen gas spring with multiple protection functions |
| CN110131347B (en) * | 2019-06-12 | 2024-02-02 | 重庆特力普尔机械设备有限公司 | Nitrogen spring with multiple protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |