CN208311349U - A kind of nitrogen gas spring structure - Google Patents
A kind of nitrogen gas spring structure Download PDFInfo
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- CN208311349U CN208311349U CN201820926853.1U CN201820926853U CN208311349U CN 208311349 U CN208311349 U CN 208311349U CN 201820926853 U CN201820926853 U CN 201820926853U CN 208311349 U CN208311349 U CN 208311349U
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Abstract
The utility model discloses a kind of nitrogen gas spring structures, upper and lower chamber is set as in cylinder body, the nitrogen of bottom chamber can flow to upper chamber from the check valve on the interior set in the middle part of cylinder body, and the indoor nitrogen of epicoele can then flow into lower chambers by components such as piston rod, vent rod, pedestal, bottom sets, and gas nozzle and active pointer are equipped in pedestal, the circulation passage of upper chamber to lower chambers can be closed by being passed through gas push active pointer by gas nozzle.When using this kind of nitrogen gas spring, the rebound time of the i.e. controllable nitrogen gas spring of gas is blown by gas nozzle, so that it be made to meet different requirement and working environment.
Description
Technical field
The utility model relates to a kind of structures of nitrogen gas spring.
Background technique
Nitrogen gas spring (or nitrogen cylinder or nitrogen cylinder) is a kind of using high pressure nitrogen as the novel elastic component of working media, it
With small in size, elastic force is big, stroke is long, stable working, manufacture precision, long service life, spring curve is gentle and does not need
The advantages that preload, is widely used in mould product production.
The piston rod of nitrogen gas spring is being pressurized and will cause to compress to the intracorporal nitrogen of cylinder, and elastic force is consequently formed, disappears to pressure
After removing or reducing, the intracorporal nitrogen of cylinder pushes piston rod quickly to pop up again.But in the case of certain specific, this kind
Characteristic is but easy to cause adverse effect to production.Such as during mould punching is molding, preceding mould pushes the die pad of rear mold
Pressure is applied to nitrogen gas spring and compresses nitrogen gas spring, to realize molding.After product punch forming, mould is opened with rear mold before making
Then mould separation again takes out product from rear mold, but existing nitrogen gas spring, in the process of die sinking, due to preceding mould is removed no longer
The die pad of molding pressure has been not enough to the pressure of nitrogen gas spring nitrogen gas spring is made to continue to keep compressive state before bearing, at this point,
Nitrogen gas spring can demoulding mechanism to die pad and thereon generate thrust, the product top pine of rear model core will be coated on, and promote
Preceding model cavity becomes greater than the cladding power of product Yu rear model core to the cladding power of product, so as to cause product by preceding die drawing from rear
Mould is unfavorable for the subsequent demoulding of product, meanwhile, it is also easy to pull product.
Utility model content
The main purpose of the utility model is to propose a kind of nitrogen gas spring structure that can control elastic force release time, with control
The work of nitrogen gas spring processed simultaneously meets it needed for different work.
To achieve the above object, the utility model proposes a kind of nitrogen gas spring structures, including inside to have chamber and top
The cylinder body of opening, middle set are set to the opening of cylinder body, and the middle part of piston rod passes through middle set and both ends are located inside and outside cylinder body,
And sealing ring is provided between cylinder body and middle set, middle set and piston rod；The inside of cylinder body is also equipped with inner sleeve, the bottom dress of cylinder body
There is bottom set, the outer pedestal equipped with connection cylinder body of bottom set, part of the cylinder body between inner sleeve and middle set forms upper chamber, cylinder body position
Part between inner sleeve and bottom set forms lower chambers, inside puts on equipped with the check valve for flowing to upper chamber from lower chambers for nitrogen,
The bottom of piston rod connect or offsets with one end that inner sleeve is located at upper chamber, and the lower hollow of piston rod, the bottom of piston rod
The upper vent hole for being connected to hollow inside is provided on side wall；Bottom is put on equipped with axially hollow vent rod, and one end of vent rod is worn
It crosses inner sleeve and protrudes into the hollow base of piston rod, bottom puts on the lower venthole for being also provided with connection lower chambers and chassis interior；Pedestal
Inside equipped with envelope gas axis, moveable needle and the gas nozzle for connecting external air feed equipment, seal on gas axis and be provided with air channel, lead to
One end of air drain is connected to lower venthole, and the other end of air channel is connected to by chassis interior with vent rod, and active pointer is set to
Chassis interior, equipped with the envelope gas glue that can close air channel notch on active pointer, active pointer by the gas-powered that gas nozzle is passed through and to
The notch of air channel is mobile, separately there is the spring for applying the active force backwards to air channel notch to active pointer, and spring is set to pedestal
It is interior, and the both ends of spring offset with envelope gas axis and active pointer respectively.
Technical solutions of the utility model, top, inside and the bottom of cylinder body are respectively provided with middle set, inner sleeve and bottom set, thus
The inside of cylinder body is divided into upper chamber and lower chambers, the end of piston rod passes through middle set and protrudes into upper chamber and offsets or connect with inner sleeve
It connects, and bottom is put on equipped with vent rod, which passes through inner sleeve and protrudes into piston rod, and the other end of vent rod passes sequentially through bottom
Seat, envelope gas axis and lower venthole are connected to lower chambers；The nitrogen of bottom chamber can be flowed to by check valve on interior set as a result,
Upper chamber, and the indoor nitrogen of epicoele then passes sequentially through under upper vent hole, vent rod, pedestal, envelope gas axis and lower venthole flow direction
Chamber.When using this kind of nitrogen gas spring, if the gas nozzle on pedestal does not connect external air feed equipment, the inside of nitrogen gas spring is
Connected state can be worked in a manner of general nitrogen gas spring；And if on the compression of the piston rod of nitrogen gas spring and pedestal
Gas nozzle connect external air feed equipment, it is logical on gas axis that the gas that gas nozzle is passed through will drive active pointer and envelope gas glue thereon that will seal
Air drain closing, so that the nitrogen of upper chamber can not flow into lower chambers, at this point, piston rod will drive inner sleeve mobile to lower chambers, under
The indoor nitrogen of chamber then flows into upper chamber by check valve, and the air pressure of upper and lower chamber is made to tend to balance, and inner sleeve and piston rod will be protected
Current location is held without generating movement, until gas nozzle stops feeding gas, active pointer and envelope gas glue are pushed away envelope gas axis by spring
Air channel notch, the indoor nitrogen of epicoele then pass through upper vent hole, vent rod, envelope gas axis and lower venthole enter lower chambers,
Increase lower chambers air pressure and pushes inner sleeve and piston rod mobile.By the setting of this kind of nitrogen gas spring structure, so that nitrogen bullet
The course of work of spring is controllable, and such as when mold is opened, during preceding mould is removed, being passed through gas from gas nozzle makes nitrogen gas spring
Stop rebound, so that it is loose and mobile with preceding mould to avoid the product in mold from being demolded mechanism top.After preceding mould is removed completely, then stop
It is only passed through gas, reset nitrogen gas spring can and demoulding mechanism is driven to push product stripping, so that product stops before guaranteeing demoulding
In rear mold, convenient for the demoulding of product, and can effective protection product, improve forming quality of products.
Detailed description of the invention
Fig. 1,2 be nitrogen gas spring structure structural schematic diagram.
Fig. 3 is the partial enlargement diagram of nitrogen gas spring structure shown in Fig. 2.
Fig. 4 is the structural schematic diagram of middle set.
Specific embodiment
Below in conjunction with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, shows
So, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.It is practical based on this
Embodiment in novel, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, is fallen within the protection scope of the utility model.
It is to be appreciated that if related in the utility model embodiment directionality instruction (such as up, down, left, right, before and after,
Top, bottom, inside and outside, vertical, transverse direction, longitudinal direction, counterclockwise, clockwise, circumferentially, radially, axially ...), then directionality indicates only
For explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if
When the particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, if relating to the description of " first " or " second " etc. in the utility model embodiment, should " first " or
The description of person " second " etc. is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated
The quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can explicitly or implicitly include to
Few this feature.It in addition, the technical solution between each embodiment can be combined with each other, but must be common with this field
Based on technical staff can be realized, this skill will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of art scheme is not present, also not within the protection scope of the requires of the utility model.
The utility model proposes a kind of nitrogen gas spring structures.
In the utility model embodiment, as shown in Figures 1 to 4, which includes internal with chamber and top
The cylinder body 1 of opening, middle set 2 are set to the opening of cylinder body, and the middle part of piston rod 3 passes through middle set and both ends are located in cylinder body
Outside, and between cylinder body and middle set, middle set and piston rod it is provided with sealing ring；The inside of cylinder body is also equipped with inner sleeve 4, the bottom of cylinder body
Portion is equipped with bottom set 5, and the outer pedestal 6 equipped with connection cylinder body of bottom set, part of the cylinder body between inner sleeve and middle set forms upper chamber
7, the part that cylinder body is located between inner sleeve and bottom set forms lower chambers 8, inside puts on equipped with for nitrogen flowing to upper chamber from lower chambers
Check valve 9, the bottom of piston rod connect or offsets with one end that inner sleeve is located at upper chamber, and the lower hollow of piston rod, living
The upper vent hole 10 for being connected to hollow inside is provided in the bottom sidewall of stopper rod；Bottom is put on equipped with axially hollow vent rod 11,
One end of vent rod passes through inner sleeve and protrudes into the hollow base of piston rod, and bottom, which is put on, is also provided with connection lower chambers and chassis interior
Lower venthole 12；Gas nozzle 15 of the inside of pedestal equipped with envelope gas axis 13, moveable needle 14 and the external air feed equipment of connection,
Be provided with air channel 16 on envelope gas axis, one end of air channel be connected to lower venthole, the other end of air channel pass through chassis interior and
Vent rod connection, active pointer are set to chassis interior, the envelope gas glue 17 that can close air channel notch, active pointer are housed on active pointer
The gas (being also possible to nitrogen) being passed through by gas nozzle drives to the movement of the notch of air channel, separately has and applies active pointer backwards to logical
The spring 18 of the active force of air drain notch, spring is set in pedestal, and the both ends of spring respectively with envelope gas axis and active pointer phase
It supports.
When using this kind of nitrogen gas spring, if the gas nozzle on pedestal does not connect external air feed equipment, nitrogen gas spring it is interior
Portion is connected state, can be worked in a manner of general nitrogen gas spring；And if the piston rod of nitrogen gas spring is pressurized and bottom
Gas nozzle on seat connects external air feed equipment, and envelope gas glue of the gas that gas nozzle is passed through by drive active pointer and thereon will seal on gas axis
Air channel closing so that the nitrogen of upper chamber can not flow into lower chambers, at this point, piston rod will drive inner sleeve to move to lower chambers
Dynamic, the nitrogen body of bottom chamber then flows into upper chamber by check valve, so that the air pressure of upper and lower chamber is tended to balance, inner sleeve and piston
Bar will keep current location without generating movement, until gas nozzle stops feeding gas, spring pushes away active pointer and envelope gas glue
The air channel notch of gas axis is sealed, the indoor nitrogen of epicoele then passes through under upper vent hole, vent rod, envelope gas axis and the entrance of lower venthole
Chamber increases lower chambers air pressure and pushes inner sleeve and piston rod mobile.By the setting of this kind of nitrogen gas spring structure, so that nitrogen
The course of work of gas spring is controllable.Such as when mold is opened, during preceding mould (not shown) is removed, gas is passed through from gas nozzle
Body makes nitrogen gas spring stop rebound, so that it is loose and mobile with preceding mould to avoid the product in mold from being demolded mechanism top.It is complete to preceding mould
After removing entirely, then stop being passed through gas, reset nitrogen gas spring can and demoulding mechanism is driven to push product stripping, to guarantee de-
Before mould, product rests on rear mold (not shown), convenient for the demoulding of product, and can effective protection product, improve forming quality of products.
The nitrogen gas spring structure, middle set 2 include being set in cylinder body 1 open-topped first to cover 21, and be set to
22 are covered in first in the second of set inside, is equipped with height adjustment piece 23 between set in set and second in first, with this configuration
On the one hand adjust nitrogen gas spring specification with can be convenient is set, the replacement and maintenance of components are on the other hand also convenient for.
The inside of pedestal 6 is equipped with chamber, and gas nozzle 15 is installed on base outer wall and is connected to internal chamber, and envelope gas axis 13 is fixed
It is installed in chamber, the both ends of active pointer 14 are separately installed with envelope gas glue 17 and piston block 19, and the other end of piston block is towards gas
The port of mouth, and be tightly connected between piston block and chamber, the both ends of spring 18 are butted on respectively on envelope gas axis and active pointer, and spring
Elastic force be directed toward piston block.Gas nozzle is passed through gas by air feed equipment, and gas, which pushes away, makes piston block that active pointer and envelope gas glue be driven to move
Air channel that is dynamic and closing envelope gas axis, the course of work are stable, accurate.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model
Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (3)
1. a kind of nitrogen gas spring structure, including inside have chamber and open-topped cylinder body (1), middle set (2) is set to cylinder body
Opening, the middle part of piston rod (3) passes through middle set and both ends are located inside and outside cylinder body, and cylinder body and middle set, middle set and work
Sealing ring is provided between stopper rod, it is characterised in that: the inside of cylinder body is also equipped with inner sleeve (4), and the bottom of cylinder body covers the bottom of equipped with
(5), the outer pedestal (6) equipped with connection cylinder body of bottom set, part of the cylinder body between inner sleeve and middle set form upper chamber (7), cylinder
The part that body is located between inner sleeve and bottom set forms lower chambers (8), inside puts on equipped with for nitrogen flowing to upper chamber from lower chambers
The bottom of check valve (9), piston rod connect or offsets with one end that inner sleeve is located at upper chamber, and the lower hollow of piston rod, living
The upper vent hole (10) for being connected to hollow inside is provided in the bottom sidewall of stopper rod；Bottom is put on equipped with axially hollow vent rod
(11), one end of vent rod passes through inner sleeve and protrudes into the hollow base of piston rod, and bottom, which is put on, is also provided with connection lower chambers and pedestal
Internal lower venthole (12)；The inside of pedestal is equipped with envelope gas axis (13), moveable needle (14) and the external gas supply of connection
The gas nozzle (15) of equipment, seal gas axis on be provided with air channel (16), one end of air channel is connected to lower venthole, air channel it is another
End is connected to by chassis interior with vent rod, and active pointer is set to chassis interior, and air channel notch can be closed by being equipped on active pointer
Envelope gas glue (17), active pointer is mobile to the notch of air channel by the gas-powered that gas nozzle is passed through, and separately has and applies to active pointer
Backwards to the spring (18) of the active force of air channel notch, spring is set in pedestal, and the both ends of spring respectively with envelope gas axis and
Active pointer offsets.
2. nitrogen gas spring structure as described in claim 1, it is characterised in that: middle set (2) includes being set at the top of cylinder body (1) to open
(21) are covered in the first of mouth, and cover (22) in second be set in first on the inside of set, are set between set in set and second in first
There are height adjustment piece (23).
3. nitrogen gas spring structure as claimed in claim 1 or 2, it is characterised in that: the inside of pedestal (6) is equipped with chamber, gas nozzle
(15) it being installed on base outer wall and is connected to internal chamber, envelope gas axis (13) is fixedly installed in chamber, and the two of active pointer (14)
End is separately installed with envelope gas glue (17) and piston block (19), the port of the other end of piston block towards gas nozzle, and piston block and chamber
It is tightly connected between room, the both ends of spring (18) are butted on respectively on envelope gas axis and active pointer, and the elastic force of spring is directed toward piston block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926853.1U CN208311349U (en) | 2018-06-15 | 2018-06-15 | A kind of nitrogen gas spring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820926853.1U CN208311349U (en) | 2018-06-15 | 2018-06-15 | A kind of nitrogen gas spring structure |
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| Publication Number | Publication Date |
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| CN208311349U true CN208311349U (en) | 2019-01-01 |
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ID=64708288
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820926853.1U Active CN208311349U (en) | 2018-06-15 | 2018-06-15 | A kind of nitrogen gas spring structure |
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| CN (1) | CN208311349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108005A (en) * | 2020-01-09 | 2021-07-13 | 广州汽车集团股份有限公司 | Shock absorber assembly |
-
2018
- 2018-06-15 CN CN201820926853.1U patent/CN208311349U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108005A (en) * | 2020-01-09 | 2021-07-13 | 广州汽车集团股份有限公司 | Shock absorber assembly |
| CN113108005B (en) * | 2020-01-09 | 2022-07-26 | 广州汽车集团股份有限公司 | Shock absorber assembly |
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