CN214499871U - Nitrogen spring sealing structure - Google Patents
Nitrogen spring sealing structure Download PDFInfo
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- CN214499871U CN214499871U CN202120041553.7U CN202120041553U CN214499871U CN 214499871 U CN214499871 U CN 214499871U CN 202120041553 U CN202120041553 U CN 202120041553U CN 214499871 U CN214499871 U CN 214499871U
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Abstract
The utility model discloses a nitrogen gas spring seal structure, including cylinder, slip at the plunger rod at the inboard top of cylinder, close the base of connection in the inboard bottom of cylinder soon and install at the inboard inflation valve of base through the screw thread, the inboard of cylinder has first bulge loop, the inside of first bulge loop has the installation annular, the inboard of installation annular is provided with first sealing washer, the top of first bulge loop has interior caulking groove, the inboard of interior caulking groove is provided with the second sealing washer, the inboard top of cylinder closes soon through the screw thread and is connected with the fastening piece of revolving, the top of fastening piece of revolving has the jack. The utility model discloses in, at first, adopt the formula of screwing in between plunger rod and the cylinder to mend and decrease seal structure, can mend the loss to wearing and tearing department, need not to change the second sealing washer and can ensure the sealed effect to the plunger rod, secondly, adopt the compact form seal structure between base and the cylinder to the sealed effect of fourth sealing washer has further been ensured.
Description
Technical Field
The utility model relates to a nitrogen gas spring technical field especially relates to nitrogen gas spring seal structure.
Background
The nitrogen spring is a novel elastic component using high-pressure nitrogen as a working medium, has small volume, large elasticity, long stroke, stable work, precise manufacture, long service life, gentle elasticity curve, no need of pre-tightening and the like, has the advantages of difficult work of conventional elastic components such as metal springs, rubber, air cushions and the like, simplifies the design and manufacture of the die, facilitates the installation and adjustment of the die, prolongs the service life of the die and ensures the stability of the product quality.
In order to guarantee the sealing performance between the plunger rod and the cylinder barrel, the sealing ring needs to be arranged between the cylinder barrel and the plunger rod, the plunger rod needs to slide up and down in a reciprocating mode, the sealing performance of the sealing ring is reduced due to friction in actual use, the nitrogen spring needs to be disassembled and then replaced, and operation is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, a nitrogen spring sealing structure is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
nitrogen spring seal structure, including cylinder, slip at the inboard top of cylinder plunger rod, through the screw thread revolve close connect the base of connecting in the inboard bottom of cylinder with install the inflation valve inboard at the base, the inboard of cylinder has first bulge loop, the inside of first bulge loop has the installation annular, the inboard of installation annular is provided with first sealing washer, the top of first bulge loop has interior caulking groove, the inboard of interior caulking groove is provided with the second sealing washer, the inboard top of cylinder is connected with fastening rotary block through the screw thread revolve close, fastening rotary block's top has the jack, the outer terminal surface top of second sealing washer is the tilting structure, one side that fastening rotary block is close to the second sealing washer is the tilting structure, and fastening rotary block slope department inner wall and second sealing washer slope department exterior wall butt, the lateral wall and first bulge loop, the lateral wall of plunger rod, The inner walls of the first sealing ring, the second sealing ring and the fastening rotary block are attached.
As a further description of the above technical solution:
the side end face of the base is provided with a mounting groove, a third sealing ring is arranged on the inner side of the mounting groove, and the side end face of the third sealing ring is attached to the inner wall of the cylinder barrel.
As a further description of the above technical solution:
and a second convex ring is arranged on the inner side of the cylinder barrel and close to the upper part of the base.
As a further description of the above technical solution:
the top of base has a plurality of inner groovies that are annular equidistance and distribute, and the shell fragment is all installed to the inboard of a plurality of inner groovies.
As a further description of the above technical solution:
the top of shell fragment fixedly connected with clamping ring.
As a further description of the above technical solution:
the top fixedly connected with fourth sealing washer of clamping ring, and the top and the second bulge loop butt of fourth sealing washer.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, adopt the formula of screwing in between plunger rod and the cylinder to mend and decrease seal structure, carry out double sealing through first sealing washer and second sealing washer between plunger rod and the cylinder, leakproofness between plunger rod and the cylinder has been ensured, when the second sealing washer takes place wearing and tearing, through rotating the fastening piece of revolving, drive the fastening piece of revolving and extrude the second sealing washer downwards, the slope department through the fastening piece of revolving extrudees the slope department of second sealing washer, thereby extrude the second sealing washer to the direction extrusion of plunger rod, thereby mend the loss to wearing and tearing department, need not to change the sealed effect that the second sealing washer can ensure the plunger rod.
2. The utility model discloses in, adopt pressing mode seal structure between base and the cylinder, close soon through the screw thread between base and the cylinder and be connected and third sealing washer and fourth sealing washer realize multiple sealing, guaranteed the leakproofness between base and the cylinder, extrude fourth sealing washer and second bulge loop butt through the base, thereby realize sealing, upward extrusion force can continuously be applyed to the clamping ring to the rethread bullet piece, thereby continuously extrude the fourth sealing washer through the clamping ring, thereby further ensured the sealed effect of fourth sealing washer.
Drawings
Fig. 1 shows a schematic front view according to the invention;
fig. 2 shows a schematic cross-sectional view according to the invention;
fig. 3 shows a schematic cross-sectional view of a connection structure of a plunger rod and a cylinder provided according to an embodiment of the present invention;
fig. 4 shows a schematic cross-sectional view of a connection structure of a base and a cylinder provided by the embodiment of the present invention.
Illustration of the drawings:
1. a cylinder barrel; 101. a first convex ring; 1011. mounting a ring groove; 1012. an embedded groove is formed; 102. a second convex ring; 2. a plunger rod; 3. a base; 301. mounting grooves; 302. an inner groove; 4. an inflation valve; 5. a first seal ring; 6. a second seal ring; 7. fastening the rotary block; 701. a jack; 8. a third seal ring; 9. a fourth seal ring; 10. pressing a ring; 11. an elastic sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the nitrogen spring sealing structure comprises a cylinder barrel 1, a plunger rod 2 sliding on the top of the inner side of the cylinder barrel 1, a base 3 connected to the bottom of the inner side of the cylinder barrel 1 in a screwing mode through threads, and an inflation valve 4 installed on the inner side of the base 3, wherein a first convex ring 101 is arranged on the inner side of the cylinder barrel 1, a mounting ring groove 1011 is formed in the first convex ring 101, a first sealing ring 5 is arranged on the inner side of the mounting ring groove 1011, an embedded groove 1012 is formed in the top of the first convex ring 101, a second sealing ring 6 is arranged on the inner side of the embedded groove 1012, a fastening rotary block 7 is connected to the top of the inner side of the cylinder barrel 1 in a screwing mode through threads, a jack 701 is formed in the top of the fastening rotary block 7, the top of the outer end face of the second sealing ring 6 is of an inclined type structure, one side, which is close to the second sealing ring 6, the inner wall of the inclined position of the fastening rotary block 7 is abutted to the outer wall of the inclined position of the second sealing ring 6, the side wall of the plunger rod 2 is abutted to the side wall of the first convex ring 101, First sealing washer 5, the laminating of the inner wall of second sealing washer 6 and fastening spiral piece 7, adopt the formula of screwing in to mend and decrease the structure, carry out double seal through first sealing washer 5 and second sealing washer 6 between plunger rod 2 and the cylinder 1, leakproofness between plunger rod 2 and the cylinder 1 has been ensured, when second sealing washer 6 takes place wearing and tearing, through rotating fastening spiral piece 7, drive fastening spiral piece 7 and extrude second sealing washer 6 downwards, slope department through fastening spiral piece 7 extrudees the slope department of second sealing washer 6, thereby extrude second sealing washer 6 to the direction extrusion of plunger rod 2, thereby mend and decrease wearing and tearing department, need not to change second sealing washer 6 and can ensure the sealed effect to plunger rod 2, jack 701's setting, be convenient for rotate fastening spiral piece 7.
Specifically, as shown in fig. 2 and 4, a side end face of the base 3 is provided with a mounting groove 301, the inner side of the mounting groove 301 is provided with a third sealing ring 8, the side end face of the third sealing ring 8 is attached to the inner wall of the cylinder barrel 1, the inner side of the cylinder barrel 1 is provided with a second convex ring 102 above the base 3, the top of the base 3 is provided with a plurality of inner grooves 302 distributed annularly and equidistantly, the inner sides of the inner grooves 302 are all provided with elastic pieces 11, the top of the elastic pieces 11 is fixedly connected with a pressing ring 10, the top of the pressing ring 10 is fixedly connected with a fourth sealing ring 9, the top of the fourth sealing ring 9 is abutted against the second convex ring 102, a pressing type sealing structure is adopted between the base 3 and the cylinder barrel 1, multiple sealing is realized through threaded screwing connection between the base 3 and the cylinder barrel 1 and the third sealing ring 8 and the fourth sealing ring 9, the sealing performance between the base 3 and the cylinder barrel 1 is ensured, the fourth sealing ring 9 is pressed against the second convex ring 102 through the base 3, thereby realize sealed, rethread shell fragment 11 can last exert ascending extrusion force to clamping ring 10 to last the extrusion to fourth sealing washer 9 through clamping ring 10, thereby further ensured the sealed effect of fourth sealing washer 9.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. Nitrogen spring seal structure, including cylinder (1), slide at the plunger rod (2) of the inboard top of cylinder (1), close the base (3) of connection in the inboard bottom of cylinder (1) and install inflation valve (4) inboard in base (3) soon through the screw thread, its characterized in that, the inboard of cylinder (1) has first bulge loop (101), the inside of first bulge loop (101) has installation annular (1011), the inboard of installation annular (1011) is provided with first sealing washer (5), the top of first bulge loop (101) has interior caulking groove (1012), the inboard of interior caulking groove (1012) is provided with second sealing washer (6), the inboard top of cylinder (1) is connected with fastening through the screw thread closes soon and is revolved piece (7), the top of fastening revolves piece (7) has jack (701), the outer terminal surface top of second sealing washer (6) is the tilting structure, one side of the fastening rotary block (7) close to the second sealing ring (6) is of an inclined structure, the inner wall of the inclined part of the fastening rotary block (7) is abutted to the outer wall of the inclined part of the second sealing ring (6), and the side wall of the plunger rod (2) is attached to the inner walls of the first convex ring (101), the first sealing ring (5), the second sealing ring (6) and the fastening rotary block (7).
2. The nitrogen spring sealing structure according to claim 1, wherein a mounting groove (301) is formed in the side end face of the base (3), a third sealing ring (8) is arranged on the inner side of the mounting groove (301), and the side end face of the third sealing ring (8) is attached to the inner wall of the cylinder (1).
3. The nitrogen spring seal structure of claim 1, characterized in that the inner side of the cylinder (1) has a second convex ring (102) near the upper side of the base (3).
4. The nitrogen spring sealing structure according to claim 3, characterized in that the top of the base (3) is provided with a plurality of inner grooves (302) which are distributed in an annular shape at equal intervals, and the inner sides of the inner grooves (302) are provided with elastic sheets (11).
5. The nitrogen spring sealing structure according to claim 4, characterized in that a press ring (10) is fixedly connected to the top of the elastic sheet (11).
6. The nitrogen spring sealing structure according to claim 5, characterized in that a fourth sealing ring (9) is fixedly connected to the top of the pressing ring (10), and the top of the fourth sealing ring (9) abuts against the second convex ring (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120041553.7U CN214499871U (en) | 2021-01-08 | 2021-01-08 | Nitrogen spring sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120041553.7U CN214499871U (en) | 2021-01-08 | 2021-01-08 | Nitrogen spring sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499871U true CN214499871U (en) | 2021-10-26 |
Family
ID=78214679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120041553.7U Active CN214499871U (en) | 2021-01-08 | 2021-01-08 | Nitrogen spring sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499871U (en) |
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2021
- 2021-01-08 CN CN202120041553.7U patent/CN214499871U/en active Active
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