CN219906561U - Combined type inflatable shaft - Google Patents
Combined type inflatable shaft Download PDFInfo
- Publication number
- CN219906561U CN219906561U CN202320372989.3U CN202320372989U CN219906561U CN 219906561 U CN219906561 U CN 219906561U CN 202320372989 U CN202320372989 U CN 202320372989U CN 219906561 U CN219906561 U CN 219906561U
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- CN
- China
- Prior art keywords
- wall
- shaft body
- air
- fixedly arranged
- shaft
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- 238000000034 method Methods 0.000 abstract description 8
- 238000007639 printing Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model relates to a combined type air expansion shaft which comprises a shaft body, an expansion mechanism and a sliding mechanism, wherein the expansion mechanism is fixedly arranged on the inner wall of the shaft body, the sliding mechanism is fixedly arranged on the inner wall of the shaft body, the expansion mechanism comprises a plurality of key grooves uniformly distributed on the outer wall of the shaft body, a supporting key is movably arranged on the inner wall of each key groove, an arc-shaped plate is fixedly arranged at one end of each supporting key, air bags are movably arranged in the middle of the arc-shaped plates at the same side, and connecting pipes are fixedly arranged among the air bags. According to the utility model, the shaft body is inserted into the paper tube, then the air valve is used for inflating, the extension pipe is matched with the air valve, the air is led into the air bags, the connecting pipe is used for uniformly leading the air into the air bags to uniformly expand the air bags, the arc-shaped plate is matched with the air bags, and the supporting key is pushed out of the key groove, so that the paper tube is synchronously supported by the supporting keys, and the stability of the paper tube in the use process is improved.
Description
Technical Field
The utility model relates to the technical field of inflatable shafts, in particular to a combined inflatable shaft.
Background
The air expansion shaft is divided into an expansion key type air expansion shaft, a vane type air expansion shaft, an expansion buckle type air expansion shaft, an aluminum alloy air expansion shaft, a differential air expansion shaft, a spiral external air expansion shaft, a large expansion air expansion shaft, an air nail shaft and the like. The inflatable shaft has wide application range, and can be applied to inflatable shafts even in light metal industries even if machines for winding, unwinding and slitting are provided. Such as: the inflatable shaft is mainly suitable for printing equipment and comprises: plate printing machines, flexo printing machines, gravure printing machines, brand printing machines, etc.
There are also many types of inflatable shafts on the market, but although the inflatable shafts can be used, the inflatable shafts cannot enable a plurality of supporting keys to synchronously support the paper cylinder, so that the stability of the use process is reduced, uneven parts inside the paper cylinder cannot be dealt with, the efficiency of inserting the shaft body into the paper cylinder is reduced, and certain defects exist.
Disclosure of Invention
The utility model solves the problem of providing a combined type air expansion shaft, which can synchronously support a paper cylinder by using a plurality of support keys, so that the stability of the use process of the combined type air expansion shaft is improved, uneven parts on the inner wall of the paper cylinder can be dealt with, and the efficiency of inserting the shaft body into the paper cylinder is improved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the combined type inflatable shaft comprises a shaft body, an expansion mechanism and a sliding mechanism, wherein the expansion mechanism is fixedly arranged on the inner wall of the shaft body, and the sliding mechanism is fixedly arranged on the inner wall of the shaft body;
the expansion mechanism comprises a plurality of key grooves which are uniformly distributed on the outer wall of the shaft body, a supporting key is movably arranged on the inner wall of each key groove, an arc-shaped plate is fixedly arranged at one end of each supporting key, an air bag is movably arranged in the middle of the arc-shaped plate on the same side, and connecting pipes are fixedly arranged between the air bags.
Preferably, the two air bags at the head and the tail are fixedly provided with extension pipes at the other ends, the outer wall of each extension pipe is movably provided with an extension shaft, and the extension shafts are fixedly connected with the shaft body.
Preferably, an air valve is movably arranged at the other end of the extension pipe, and the air valve is movably arranged with the extension shaft.
Preferably, the sliding mechanism comprises a plurality of supporting groove plates which are uniformly distributed and fixedly arranged on the inner wall of the shaft body, an elastic telescopic rod is fixedly arranged at the bottom end of the inner wall of the supporting groove plates, an auxiliary plate is fixedly arranged at the other end of the elastic telescopic rod, and a pulley is fixedly arranged at the other side of the auxiliary plate.
Preferably, the outer wall of the auxiliary plate is movably connected with the inner wall of the supporting groove plate.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the expansion mechanism is arranged, the shaft body is inserted into the paper tube, then the air valve is used for inflating, the extension pipe is matched with the air valve, the air is led into the air bags, the connecting pipe is used for uniformly leading the air into the plurality of air bags to uniformly expand the air bags, the arc-shaped plate is matched with the air bags, and the supporting keys are pushed out of the key grooves, so that the plurality of supporting keys synchronously support the paper tube, and the stability of the paper tube in the use process is improved;
2. according to the utility model, the sliding mechanism is arranged, the pulleys are contacted with the inner wall of the paper cylinder in the process of inserting the shaft body into the paper cylinder, and the elastic telescopic rod stretches or stretches when meeting the uneven position in the inner wall of the paper cylinder, so that the shaft body can be smoothly inserted into the paper cylinder, the uneven position of the inner wall of the paper cylinder can be dealt with, and the efficiency of inserting the shaft body into the paper cylinder is increased.
Drawings
FIG. 1 is a schematic view of the overall structure of a combined inflatable shaft of the present utility model;
FIG. 2 is a schematic view of the overall structure of the combined inflatable shaft of the present utility model;
FIG. 3 is a schematic side view of a modular inflatable shaft of the present utility model;
fig. 4 is a schematic cross-sectional view of the structure at A-A in fig. 3.
Legend description:
1. a shaft body; 2. an expansion mechanism; 201. a support key; 202. a key slot; 203. an arc-shaped plate; 204. an air bag; 205. a connecting pipe; 206. an extension tube; 3. a sliding mechanism; 301. supporting the trough plate; 302. a pulley; 303. an auxiliary plate; 304. an elastic telescopic rod; 4. an extension shaft; 5. and an air valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Specific examples are given below.
Referring to fig. 1 to 4, a combined air expansion shaft comprises a shaft body 1, an expansion mechanism 2 and a sliding mechanism 3, wherein the expansion mechanism 2 is fixedly arranged on the inner wall of the shaft body 1, and the sliding mechanism 3 is fixedly arranged on the inner wall of the shaft body 1;
the expansion mechanism 2 comprises a plurality of key grooves 202 which are uniformly distributed on the outer wall of the shaft body 1, a supporting key 201 is movably arranged on the inner wall of the key groove 202, an arc-shaped plate 203 is fixedly arranged at one end of the supporting key 201, air bags 204 are movably arranged in the middle of the plurality of arc-shaped plates 203 at the same side, and connecting pipes 205 are fixedly arranged between the plurality of air bags 204;
the extension pipes 206 are fixedly arranged at the other ends of the head and tail air bags 204, extension shafts 4 are movably arranged on the outer walls of the extension pipes 206, the extension shafts 4 are fixedly connected with the shaft body 1, and the extension shafts 4 are used for increasing the length of the shaft body 1 and protecting the extension pipes 206;
the other end of the extension tube 206 is movably provided with a gas valve 5, the gas valve 5 is movably arranged with the extension shaft 4, and the gas valve 5 is used for conveniently reserving and releasing gas.
Working principle: the staff inserts the axis body 1 into the paper tube, then inflates by the air valve 5, guides the air into the air bags 204 by the cooperation of the extension pipe 206, guides the air into the air bags 204 by the connecting pipe 205, makes the air expand uniformly, pushes the supporting key 201 out of the key slot 202 by the cooperation of the arc plate 203, makes the supporting key 201 support the paper tube synchronously, and increases the stability of the using process.
Referring to fig. 2 to 4, the sliding mechanism 3 includes a plurality of supporting groove plates 301 which are uniformly distributed and fixedly installed on the inner wall of the shaft body 1, an elastic telescopic rod 304 is fixedly installed at the bottom end of the inner wall of the supporting groove plates 301, an auxiliary plate 303 is fixedly installed at the other end of the elastic telescopic rod 304, a pulley 302 is fixedly installed at the other side of the auxiliary plate 303, the outer wall of the auxiliary plate 303 is movably connected with the inner wall of the supporting groove plates 301, and the stability of the lifting process of the pulley 302 is improved by using the movable connection between the auxiliary plate 303 and the supporting groove plates 301.
The working principle is as follows; in the process of inserting the shaft body 1 into the paper tube, the pulleys 302 are contacted with the inner wall of the paper tube, when the position of the unevenness in the inner wall of the paper tube is encountered, the elastic telescopic rod 304 stretches or stretches to adapt to the unevenness of the inner wall of the paper tube, so that the shaft body 1 can be smoothly inserted into the paper tube, the unevenness of the inner wall of the paper tube can be dealt with, and the efficiency of inserting the shaft body 1 into the paper tube is increased.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (5)
1. The combined type air expansion shaft is characterized by comprising a shaft body (1), an expansion mechanism (2) and a sliding mechanism (3), wherein the expansion mechanism (2) is fixedly arranged on the inner wall of the shaft body (1), and the sliding mechanism (3) is fixedly arranged on the inner wall of the shaft body (1);
the expansion mechanism (2) comprises a plurality of key grooves (202) which are uniformly distributed on the outer wall of the shaft body (1), supporting keys (201) are movably mounted on the inner walls of the key grooves (202), arc plates (203) are fixedly mounted at one ends of the supporting keys (201), air bags (204) are movably mounted in the middle of the arc plates (203) on the same side, and connecting pipes (205) are fixedly mounted between the air bags (204).
2. The combined type inflatable shaft according to claim 1, wherein extension pipes (206) are fixedly arranged at the other ends of the first airbag (204) and the second airbag, extension shafts (4) are movably arranged on the outer walls of the extension pipes (206), and the extension shafts (4) are fixedly connected with the shaft body (1).
3. The combined type air expansion shaft according to claim 2, wherein an air valve (5) is movably arranged at the other end of the extension pipe (206), and the air valve (5) is movably arranged with the extension shaft (4).
4. The combined type air expansion shaft according to claim 1, wherein the sliding mechanism (3) comprises a plurality of supporting groove plates (301) which are uniformly distributed and fixedly arranged on the inner wall of the shaft body (1), an elastic telescopic rod (304) is fixedly arranged at the bottom end of the inner wall of the supporting groove plates (301), an auxiliary plate (303) is fixedly arranged at the other end of the elastic telescopic rod (304), and a pulley (302) is fixedly arranged at the other side of the auxiliary plate (303).
5. The combined type air expansion shaft according to claim 4, wherein the outer wall of the auxiliary plate (303) is movably connected with the inner wall of the supporting groove plate (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320372989.3U CN219906561U (en) | 2023-03-03 | 2023-03-03 | Combined type inflatable shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320372989.3U CN219906561U (en) | 2023-03-03 | 2023-03-03 | Combined type inflatable shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219906561U true CN219906561U (en) | 2023-10-27 |
Family
ID=88423314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320372989.3U Active CN219906561U (en) | 2023-03-03 | 2023-03-03 | Combined type inflatable shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219906561U (en) |
-
2023
- 2023-03-03 CN CN202320372989.3U patent/CN219906561U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |