CN203767692U - Gas expanding sleeve - Google Patents
Gas expanding sleeve Download PDFInfo
- Publication number
- CN203767692U CN203767692U CN201420055227.1U CN201420055227U CN203767692U CN 203767692 U CN203767692 U CN 203767692U CN 201420055227 U CN201420055227 U CN 201420055227U CN 203767692 U CN203767692 U CN 203767692U
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- CN
- China
- Prior art keywords
- ring
- end cap
- left end
- inflatable
- right end
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a gas expanding sleeve which comprises an inner ring, an outer ring, a left end cover, a right end cover, a fixing ring, multiple expanding block assemblies, a sealing ring and a gas expanding ring with the retraction and expanding functions. The left end cover and the right end cover are arranged and connected through the periphery of the fixing ring and the periphery of the inner ring, so that a gas cavity is formed. The left end cover or the right end cover or the inner ring is provided with a gas inlet communicated with the gas cavity. A gas expanding ring fixing groove is formed in the inner wall of the outer ring. The two ends of the gas expanding ring are respectively provided with a radial limiting protrusion. The limiting protrusions are respectively located in the gas expanding ring fixing groove. The two ends of the inner wall of the gas expanding ring abut against the left end cover and the right end cover. The two circumferential ends of the outer wall of the gas expanding ring abut against the outer ring. Multiple expanding block holes are formed in the outer ring. After the gas cavity is inflated, the gas expanding ring is then expanded and expanding blocks extend out of the expanding block holes. A sealing ring limiting groove is formed in the periphery of the inner ring and the sealing ring is arranged in the sealing ring limiting groove and abuts against the corresponding left end cover or the corresponding right end cover. The width of the gas expanding sleeve ranges from 20 mm to 100 mm and the application range is wider.
Description
Technical field
The utility model relates to the inflatable cover in tandem that a kind of and mechanical equipment coordination are used, and is especially applicable to being configured in to the cutting of plastics, paper, paper, film and ultrathin metallic membrane etc., rolling, unreels on the mechanical equipment with rewinding.
Background technology
At present, the various air sac inflatable covers of the domestic and imported using on market are to adopt the rear various rolling core of the expansion swelling pipe of long balloons inflation, because the size of air bag is larger, and long, therefore the width of inflatable cover must be machined to the above tension force requirement that could meet after air bag expands of 100mm, and width also cannot solve with interior inflatable cover at present at 20mm ~ 100mm, if inflatable is overlapped to width to be done narrow, just can batch narrower material, such as paper, plastics, film and ultrathin metallic membrane etc.
Summary of the invention
The purpose of this utility model is to provide a kind of and the width of inflatable cover can be made between 20mm ~ 100mm, the inflatable cover that range of use is wider.
The technical scheme that realizes above-mentioned purpose is: a kind of inflatable cover, it is characterized in that: comprise inner ring, outer ring, left end cap, right end cap, mounting ring, a plurality of expansion block assemblies, seal ring and the inflatable circle with convergent-divergent function, left end cap and right end cap are respectively by the periphery load of corresponding mounting ring and inner ring, left end cap, right end cap, between the gentle packing of inner ring, form air cavity, inner ring or left end cap or right end cap are provided with the induction opening being communicated with air cavity, the inwall of described outer ring is provided with inflatable circle hold down groove, the two ends of inflatable circle are respectively equipped with spacing preiection radially, spacing preiection lays respectively in inflatable circle hold down groove, the inwall both ends of inflatable circle offset with left end cap and right end cap respectively, inflatable circle, two axial end portions and the outer ring of outer wall offset, outer ring is provided with a plurality of expansion block holes radially, expansion block assembly comprises expansion block, spring leaf and fastener, expansion block is connected with the slippage of expansion block hole, spring leaf is between outer ring and inflatable circle, spring leaf is fixedly connected with expansion block by fastener and keeps off mutually with outer ring, after the ventilation of inflatable circle along with air cavity, expand, can promote expansion block and expose expansion block hole, the periphery of inner ring is provided with a left side, right seal ring position-limited trough, left, in right seal ring position-limited trough, be all equipped with seal ring, seal ring offsets with corresponding left end cap and right end cap.
Described mounting ring is threaded with inner ring.
The outside of described left end cap is provided with the first outer ring spacing preiection, isolate protruding arranged on left and right sides and be equipped with the first seal ring, the outside of right end cap is provided with the second outer ring spacing preiection, and the both sides of outer ring are equipped with the spacing seam matching with the first outer ring spacing preiection and the second outer ring spacing preiection.
The periphery of described inner ring is provided with isolation projection, and the inner side of left end cap and right end cap all offsets with isolation projection, and the outside of left end cap and right end cap is spacing by corresponding mounting ring.
Described expansion block assembly is provided with 3 ~ 20 in uniform way, and the axial width of inflatable cover is between 20mm ~ 100mm.
Adopt after the structure of technique scheme, left end cap and right end cap are respectively by the periphery load of corresponding mounting ring and inner ring, left end cap, right end cap, between the gentle packing of inner ring, form air cavity, inner ring or left end cap or right end cap are provided with the induction opening being communicated with air cavity, the inwall of described outer ring is provided with inflatable circle hold down groove, the two ends of inflatable circle are respectively equipped with spacing preiection radially, spacing preiection lays respectively in inflatable circle hold down groove, the inwall both ends of inflatable circle offset with left end cap and right end cap respectively, two circumferential end and the outer ring of inflatable ring outer wall offset, after passing into pressure gas, because the two ends of inflatable circle are passed through left, right end cap is tight against on outer ring, therefore the two ends of inflatable circle can not be shifted, and be positioned at the part inflatable circle meeting radial expansion at air cavity place, will prop up expansion block, expansion block can be stretched out outside expansion block hole, expansion block will tensioner rolling core pipe, reach the function of swelling rolling core pipe, the periphery of inner ring is provided with a left side, right seal ring position-limited trough, left, in right seal ring position-limited trough, be all equipped with seal ring, seal ring offsets with corresponding left end cap and right end cap, the sealing effectiveness that has improved air cavity further improves tension force, the utility model changes into inflatable circle by air bag, therefore the width of inflatable cover can be made between 20mm ~ 100mm, and tension force meets swelling effect.
Accompanying drawing explanation
Fig. 1 is complete section section-drawing of the present utility model;
Fig. 2 is the A-A cross-sectional schematic in Fig. 1;
Fig. 3 passes in Fig. 2 after pressurized air, and expansion block is stretched out schematic diagram outside expansion block hole;
Fig. 4 is the cutaway view of inflatable circle in Fig. 2;
Fig. 5 is the left end cap cutaway view of Fig. 1;
Fig. 6 is outer ring cutaway view in Fig. 1;
Fig. 7 is that induction opening is located at the cutaway view on left end cap.
The specific embodiment
The embodiment providing below in conjunction with accompanying drawing is described in further detail the utility model.
As shown in Fig. 1 ~ 7, a kind of inflatable cover, it is characterized in that: comprise inner ring 1, outer ring 2, left end cap 3, right end cap 4, mounting ring 5, a plurality of expansion block assemblies 6, seal ring 7 and the inflatable circle 8 with convergent-divergent function, inflatable circle 8 is made for rubber, the periphery load with inner ring 1 by corresponding mounting ring 5 respectively of left end cap 3 and right end cap 4, left end cap 3, right end cap 4, between the gentle packing 8 of inner ring 1, form air cavity 9, inner ring 1 is provided with the induction opening 10 being communicated with air cavity 9, certainly induction opening 10 also can be arranged on left end cap 3 or right end cap 4, induction opening 10 is just arranged on left end cap 3 as shown in Figure 7, play equally the same effect, the inwall of described outer ring 2 is provided with inflatable circle hold down groove 2-2, the two ends of inflatable circle 8 are respectively equipped with spacing preiection 8-1 radially, spacing preiection 8-1 lays respectively in inflatable circle hold down groove 2-2, the inwall both ends of inflatable circle 8 offset with left end cap 3 and right end cap 4 respectively, two circumferential end and the outer ring 2 of inflatable circle 8 outer walls offset, so just limited the displacement of inflatable circle 8, after inflatable circle 8 expands and shrinks, inflatable circle 8 all can shift position, outer ring 2 is provided with a plurality of expansion block hole 2-1 radially, expansion block assembly 6 comprises expansion block 6-1, spring leaf 6-2 and fastener 6-3, this fastener 6-3 is screw, expansion block 6-1 is connected with the 2-1 slippage of expansion block hole, spring leaf 6-2 is between outer ring 2 and inflatable circle 8, spring leaf 6-2 is fixedly connected with expansion block 6-1 by fastener 6-3 and keeps off mutually with outer ring 2, after the ventilation of inflatable circle 8 along with air cavity 9, expand, can promote expansion block 6-1 and expose expansion block hole 2-1, the periphery of inner ring 1 is provided with a left side, right seal ring position-limited trough 1-1, left, in right seal ring position-limited trough 1-1, be all equipped with seal ring 7, seal ring 7 offsets with corresponding left end cap 3 and right end cap 4.
Shown in Figure 1, in order conveniently to install and remove, described mounting ring 5 is threaded with inner ring 1.
Shown in Fig. 1,5,6, the outside of described left end cap 3 is provided with the first outer ring spacing preiection 3-1, right end cap 4 is provided with the second outer ring spacing preiection 4-1, the both sides of outer ring 2 are equipped with the spacing seam 2-3 matching with the first outer ring spacing preiection 3-1 and the second outer ring spacing preiection 4-1, the both sides of outer ring 2 are just spacing by left end cap 3 and right end cap 4 like this, can play.
Shown in Figure 1, the periphery of described inner ring 1 is provided with the protruding 1-2 of isolation, the arranged on left and right sides of isolating protruding 1-2 is equipped with the first seal ring 1-2-1, the inner side of left end cap 3 and right end cap 4 all offsets with the protruding 1-2 of isolation, the outside of left end cap 3 and right end cap 4 is spacing by corresponding mounting ring 5, the protruding 2-4 of isolation just separates left end cap 3 and right end cap 4 like this, form air cavity 9, after pressurized air passes into, it is large that the area of contact of pressurized air and inflatable circle 8 will become, the tensile force that inflatable circle 8 acts on expansion block assembly 6 will become greatly, has improved swelling effect.
Shown in Fig. 2,3, described expansion block assembly 6 is provided with 3 ~ 20 in uniform way, according to the difference of inflatable cover diameter, can arrange according to actual conditions, improve swelling effect, the axial width of inflatable cover is between 20mm ~ 100mm, when the width setting of therefore overlapping when inflatable is narrower, just can the narrower material of rolling.
Shown in Fig. 1 ~ 7, when the utility model is used, the utility model is a plurality of in tandem on main shaft, rolling core pipe box is contained on the utility model, the periphery load with inner ring 1 by mounting ring 5 respectively of left end cap 3 and right end cap 4, mounting ring 5 is threaded with the periphery of inner ring 1, easy disassembly, make a side of left end cap 3 and right end cap 4 spacing by mounting ring 5, opposite side is spacing by the protruding 2-4 of isolation, and the outer end of left end cap 3 is provided with the first outer ring spacing preiection 3-1, right end cap 4 is provided with the second outer ring spacing preiection 4-1, the both sides of outer ring 2 are spacing by the first outer ring spacing preiection 3-1 and the second outer ring spacing preiection 4-1 respectively, induction opening 10 is arranged on inner ring 1, certainly induction opening 10 also can be arranged on left end cap 3 or right end cap 4, when pressurized air enters after air cavity 9 by induction opening 10, pressurized air will make inflatable circle 8 expand, inflatable circle 8 will drive expansion block 6-1 to stretch out outside outer ring 2, and make expansion block 6-1 be tight against rolling core pipe, reach the effect of swelling rolling core pipe, otherwise as long as close extraction pressurized air, inflatable circle 8 will shrink, inflatable circle 8 resets by the effect of spring leaf 6-2, in indentation outer ring 2.Of the present utility model simple in structure, and air bag is changed into inflatable circle 8, therefore the width of inflatable cover can be made between 20mm ~ 100mm, and tension force meets swelling effect.And according to repeatedly using, its tension force and swelling effect significantly improve.
Claims (5)
1. an inflatable cover, it is characterized in that: comprise inner ring (1), outer ring (2), left end cap (3), right end cap (4), mounting ring (5), a plurality of expansion block assemblies (6), seal ring (7) and there is the inflatable circle (8) of convergent-divergent function, the periphery load with inner ring (1) by corresponding mounting ring (5) respectively of left end cap (3) and right end cap (4), left end cap (3), right end cap (4), between the gentle packing of inner ring (1) (8), form air cavity (9), inner ring (1) or left end cap (3) or right end cap (4) are provided with the induction opening (10) being communicated with air cavity (9), the inwall of described outer ring (2) is provided with inflatable circle hold down groove (2-2), the two ends of inflatable circle (8) are respectively equipped with spacing preiection (8-1) radially, spacing preiection (8-1) lays respectively in inflatable circle hold down groove (2-2), the inwall both ends of inflatable circle (8) offset with left end cap (3) and right end cap (4) respectively, two axial end portions and outer ring (2) of inflatable circle (8) outer wall offset, outer ring (2) is provided with a plurality of expansion block holes (2-1) radially, expansion block assembly (6) comprises expansion block (6-1), spring leaf (6-2) and fastener (6-3), expansion block (6-1) is connected with expansion block hole (2-1) slippage, spring leaf (6-2) is positioned between outer ring (2) and inflatable circle (8), spring leaf (6-2) is fixedly connected with expansion block (6-1) by fastener (6-3) and keeps off mutually with outer ring (2), after the ventilation of inflatable circle (8) along with air cavity (9), expand, can promote expansion block (6-1) and expose expansion block hole (2-1), the periphery of inner ring (1) is provided with a left side, right seal ring position-limited trough (1-1), left, in right seal ring position-limited trough (1-1), be all equipped with seal ring (7), seal ring (7) offsets with corresponding left end cap (3) and right end cap (4).
2. inflatable cover according to claim 1, is characterized in that: described mounting ring (5) is threaded with inner ring (1).
3. inflatable cover according to claim 1, it is characterized in that: the outside of described left end cap (3) is provided with the first outer ring spacing preiection (3-1), the outside of right end cap (4) is provided with the second outer ring spacing preiection (4-1), and the both sides of outer ring (2) are equipped with the spacing seam (2-3) matching with the first outer ring spacing preiection (3-1) and the second outer ring spacing preiection (4-1).
4. inflatable cover according to claim 1, it is characterized in that: the periphery of described inner ring (1) is provided with isolation projection (1-2), the arranged on left and right sides of isolation projection (1-2) is equipped with the first seal ring (1-2-1), the inner side of left end cap (3) and right end cap (4) all offsets with isolation projection (1-2), and the outside of left end cap (3) and right end cap (4) is spacing by corresponding mounting ring (5).
5. inflatable cover according to claim 1, is characterized in that: described expansion block assembly (6) is provided with 3 ~ 20 in uniform way, and the axial width of inflatable cover is between 20mm ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055227.1U CN203767692U (en) | 2014-01-28 | 2014-01-28 | Gas expanding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055227.1U CN203767692U (en) | 2014-01-28 | 2014-01-28 | Gas expanding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203767692U true CN203767692U (en) | 2014-08-13 |
Family
ID=51284908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055227.1U Withdrawn - After Issue CN203767692U (en) | 2014-01-28 | 2014-01-28 | Gas expanding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203767692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738757A (en) * | 2014-01-28 | 2014-04-23 | 江阴市申港电讯器材厂 | Air expansion sleeve |
-
2014
- 2014-01-28 CN CN201420055227.1U patent/CN203767692U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738757A (en) * | 2014-01-28 | 2014-04-23 | 江阴市申港电讯器材厂 | Air expansion sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |