CN113294445B - Convex key type air expansion shaft with multistage adjusting function - Google Patents
Convex key type air expansion shaft with multistage adjusting function Download PDFInfo
- Publication number
- CN113294445B CN113294445B CN202110493938.1A CN202110493938A CN113294445B CN 113294445 B CN113294445 B CN 113294445B CN 202110493938 A CN202110493938 A CN 202110493938A CN 113294445 B CN113294445 B CN 113294445B
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- CN
- China
- Prior art keywords
- surface wall
- convex key
- key block
- inflatable shaft
- main body
- 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.)
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- 230000006870 function Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009711 regulatory function Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/04—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with clamping hub; with hub and longitudinal key
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Tents Or Canopies (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a convex key type inflatable shaft with a multistage adjusting function, which comprises an inflatable shaft main body, an inflatable hole, an air bag and a fixed ring, and further comprises: a convex key block with a U-shaped cross section; the supporting piece is fixedly connected to the outer surface wall of the air bag. In the invention, in the stage of adjusting the inflatable shaft main body, the threaded sleeve can be rotated according to the use requirement, the threaded sleeve and the linkage rod are screwed to move up and down, and the sliding ball at the bottom of the threaded sleeve slides along the annular sliding groove synchronously, so that the threaded sleeve can drive the convex key block to adjust the vertical height in the process of moving up and down, and the convex key block is positioned at the corresponding position of the linkage rod.
Description
Technical Field
The invention relates to the technical field of convex key type inflatable shafts, in particular to a convex key type inflatable shaft with a multistage adjusting function.
Background
The main body of the convex key type air expansion shaft adopts high-quality steel pipes, and the surface of the main body is plated with chromium and aluminum alloy convex keys. The bearing capacity is strong, the key expansion and contraction are flexible, the high-quality rubber liner and the quick inflation air tap are configured, the sealing effect is good, the service life is long, the shaft head can be disassembled, and the maintenance is simple and convenient.
At present, the existing convex key type inflatable shaft still has the defect that the existing convex key type inflatable shaft is inflated by injecting air into an air bag when in operation, the inflated air bag pushes the convex key to extend, and the extending length of the convex key is single because the expanding amplitude of the air bag is fixed, so that the extending length of the convex key can not be adjusted according to the requirement, and the use limitation of the convex key type inflatable shaft is increased; in addition, although the existing inflation holes are provided with self-closing mechanisms, the outer sides of the existing inflation holes are not provided with corresponding protection mechanisms, so that when the existing inflation holes are impacted or rubbed in a contact mode, the inflation holes are easy to damage, the air bags cannot be inflated normally, and the using effect of the convex key type inflatable shaft is reduced.
Disclosure of Invention
The invention aims to solve the problems, and provides a convex key type inflatable shaft with a multi-stage adjusting function.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a protruding key formula physiosis axle with multistage regulatory function, includes physiosis axle main part, inflatable hole, gasbag and solid fixed ring, still includes:
a convex key block with a U-shaped cross section;
the supporting piece is fixedly connected to the outer surface wall of the air bag, and a spring is elastically connected between the outer surface wall of the supporting piece and the fixing ring;
the adjusting mechanism is arranged between the convex key block and the fixed ring in a penetrating way and is fixedly connected with the supporting piece, so as to adjust the vertical position of the convex key block.
As a further description of the above technical solution:
the adjusting mechanism comprises a linkage rod fixedly connected with the supporting piece, the outer surface wall of the linkage rod is in transition fit with the convex key block and the fixing ring, the outer surface wall of the linkage rod is connected with a screw sleeve in a screwed mode, and a limiting part is arranged between the bottom of the screw sleeve and the inner surface wall of the bottom of the convex key block and used for synchronizing the relative positions of the convex key block and the screw sleeve.
As a further description of the above technical solution:
the outer side of the inflation hole is provided with a baffle plate which is rotationally connected with the inner surface wall of the inflatable shaft main body, and the other end of the baffle plate is fixedly connected with the outer surface wall of the inflatable shaft main body through a fastener.
As a further description of the above technical solution:
the convex key block is in transition fit with the inner surface wall of the inflatable shaft main body.
As a further description of the above technical solution:
the two groups of springs are symmetrically distributed by taking the adjusting part as an axis.
As a further description of the above technical solution:
the outside of the screw sleeve is sleeved with a pressing sleeve, the outside of the pressing sleeve is fixedly connected with a connecting sheet, and the connecting sheet is screwed with the inner surface wall of the bottom of the convex key block through a fastener.
As a further description of the above technical solution:
the limiting part comprises a sliding ball which is in sliding connection with the inner surface wall at the bottom of the convex key block through an annular sliding groove.
As a further description of the above technical solution:
an elastic cushion is fixedly arranged on the inner surface wall of the top of the pressing sleeve.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. in the invention, in the stage of adjusting the inflatable shaft main body, the threaded sleeve can be rotated according to the use requirement, the threaded sleeve and the linkage rod are screwed to move up and down, and the sliding ball at the bottom of the threaded sleeve slides along the annular sliding groove synchronously, so that the threaded sleeve can drive the convex key block to adjust the vertical height in the process of moving up and down, and the convex key block is positioned at the corresponding position of the linkage rod.
2. In the invention, the position of the air inflation hole is lower than the outer surface of the inflatable shaft main body, the outer side of the air inflation hole is provided with the baffle plate, when the inflatable shaft main body is not used, the baffle plate can be turned over to be combined with the outer surface wall of the inflatable shaft main body, and the baffle plate covers the outer side of the air inflation hole to protect the air inflation hole, so that the inflatable shaft is prevented from being impacted or rubbed in a contact manner, and the use effect of the convex key type inflatable shaft is improved.
3. According to the invention, after the screw sleeve is operated, the pressing sleeve can be sleeved on the outer side of the screw sleeve, the connecting piece of the outer surface wall of the pressing sleeve is screwed with the convex key block through the fastener, at the moment, the inner surface wall of the top of the pressing sleeve is tightly attached to the outer side of the screw sleeve, so that the loosening of the pressing sleeve during the operation of the main body of the inflatable shaft is avoided, and the use stability of the convex key type inflatable shaft is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a male key block according to the present invention;
FIG. 3 is a schematic view of a retaining ring according to the present invention;
FIG. 4 is a schematic view of the structure of the pressure jacket and the connecting sheet of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 3B according to the present invention;
FIG. 7 is a schematic view of the structure of the sliding ball and the annular chute according to the present invention.
Legend description:
1. an inflatable shaft body; 2. a male key block; 3. a connecting sheet; 4. pressing the sleeve; 5. a linkage rod; 6. an air filling hole; 7. a baffle; 8. an air bag; 9. a fixing ring; 10. a support sheet; 11. a spring; 12. a screw sleeve; 13. a sliding ball; 14. an annular chute.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
referring to fig. 1-7, a male key type inflatable shaft with multi-stage adjustment function includes an inflatable shaft main body 1, an inflatable hole 6, an air bag 8 and a fixing ring 9, and further includes:
a convex key block 2 with a U-shaped cross section;
the support piece 10, the support piece 10 is fixedly connected to the outer surface wall of the air bag 8, and a spring 11 is elastically connected between the outer surface wall of the support piece 10 and the fixed ring 9;
the adjusting mechanism is arranged between the convex key block 2 and the fixed ring 9 in a penetrating way and is fixedly connected with the supporting piece 10, so as to adjust the vertical position of the convex key block 2.
The adjusting mechanism comprises a linkage rod 5 fixedly connected with a supporting plate 10, the outer surface wall of the linkage rod 5 is in transition fit with the convex key block 2 and the fixed ring 9, the outer surface wall of the linkage rod 5 is in screwed connection with a threaded sleeve 12, and a limiting part is arranged between the bottom of the threaded sleeve 12 and the inner surface wall of the bottom of the convex key block 2 and used for synchronizing the relative positions of the convex key block 2 and the threaded sleeve 12.
In the adjustment stage of the inflatable shaft main body 1, the threaded sleeve 12 can be rotated according to the use requirement, the threaded sleeve 12 and the linkage rod 5 are screwed to move up and down, the sliding ball 13 at the bottom of the threaded sleeve 12 slides along the annular sliding groove 14 synchronously, so that the threaded sleeve 12 can drive the convex key block 2 to adjust the vertical height in the process of moving up and down, the convex key block 2 is positioned at the corresponding position of the linkage rod 5, and at the moment, the extending lengths of the convex key block 2 are different on the premise that the air bag 8 expands to drive the linkage rod 5 to displace by the same amplitude, so that the inflatable shaft main body 1 can adjust the appointed height of the convex key block 2 according to the requirement, and the application range of the convex key type inflatable shaft is improved.
The outside of the air charging hole 6 is provided with a baffle 7 which is rotationally connected with the inner surface wall of the inflatable shaft main body 1, and the other end of the baffle 7 is fixedly connected with the outer surface wall of the inflatable shaft main body 1 through a fastener.
The position of the air inflation hole 6 is lower than the outer surface of the inflatable shaft main body 1, meanwhile, the outer side is provided with the baffle plate 7, when the inflatable shaft main body 1 is not used, the baffle plate 7 can be turned over to be combined with the outer surface wall of the inflatable shaft main body 1, and at the moment, the baffle plate 7 covers the outer side of the inflatable shaft main body 6, so that the inflatable shaft 6 is protected, the impact or contact friction of the inflatable shaft is avoided, and the use effect of the convex key type inflatable shaft is improved.
The convex key block 2 is in transition fit with the inner surface wall of the inflatable shaft main body 1, so that the convex key block 2 cannot deviate in the horizontal direction.
The two groups of springs 11 are symmetrically distributed by taking the adjusting part as an axis so as to ensure that the supporting sheet 10 is uniformly stressed.
The outside of the screw sleeve 12 is sleeved with a pressing sleeve 4, the outside of the pressing sleeve 4 is fixedly connected with a connecting sheet 3, and the connecting sheet 3 is screwed and connected with the inner surface wall at the bottom of the convex key block 2 through a fastener.
After the operation of the screw sleeve 12 is completed, the pressing sleeve 4 can be sleeved on the outer side of the screw sleeve 12, the connecting sheet 3 on the outer surface wall of the pressing sleeve 4 is screwed with the convex key block 2 through a fastener, at the moment, the inner surface wall at the top of the pressing sleeve 4 is tightly attached to the outer side of the screw sleeve 12, and the loosening of the pressing sleeve is avoided when the inflatable shaft main body 1 works, so that the use stability of the convex key type inflatable shaft is improved.
The limiting part comprises a sliding ball 13, and the sliding ball 13 is in sliding connection with the inner surface wall at the bottom of the convex key block 2 through an annular sliding groove 14, so that the movement of the threaded sleeve 12 is ensured, and the positions of the threaded sleeve 12 and the convex key block 2 can be synchronized.
An elastic cushion is fixedly arranged on the inner surface wall of the top of the pressing sleeve 4 so as to ensure the stable combination of the pressing sleeve 4 and the threaded sleeve 12.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a protruding key formula physiosis axle with multistage regulatory function, includes physiosis axle main part, air filling hole, gasbag and solid fixed ring, its characterized in that still includes:
a convex key block with a U-shaped cross section;
the supporting piece is fixedly connected to the outer surface wall of the air bag, and a spring is elastically connected between the outer surface wall of the supporting piece and the fixing ring;
the adjusting mechanism is arranged between the convex key block and the fixed ring in a penetrating way and is fixedly connected with the supporting piece so as to adjust the vertical position of the convex key block;
the adjusting mechanism comprises a linkage rod fixedly connected with the supporting piece, the outer surface wall of the linkage rod is in transition fit with the convex key block and the fixing ring, the outer surface wall of the linkage rod is in screwed connection with a screw sleeve, a limiting part is arranged between the bottom of the screw sleeve and the inner surface wall of the bottom of the convex key block, and the limiting part is used for synchronizing the relative positions of the convex key block and the screw sleeve;
the limiting part comprises a sliding ball which is in sliding connection with the inner surface wall at the bottom of the convex key block through an annular sliding groove.
2. The convex key type inflatable shaft with the multistage adjusting function according to claim 1, wherein a baffle plate which is rotationally connected with the inner surface wall of the inflatable shaft main body is arranged on the outer side of the inflatable hole, and the other end of the baffle plate is fixedly connected with the outer surface wall of the inflatable shaft main body through a fastener.
3. The male key type inflatable shaft with multi-stage adjusting function according to claim 2, wherein the male key block is in transition fit with the inner surface wall of the inflatable shaft main body.
4. A male key type inflatable shaft with multi-stage adjusting function according to claim 3, wherein the two groups of springs are symmetrically distributed with the adjusting part as an axis.
5. The male key type air inflation shaft with the multi-stage adjusting function according to claim 4, wherein a pressing sleeve is sleeved outside the threaded sleeve, a connecting sheet is fixedly connected to the outer side of the pressing sleeve, and the connecting sheet is connected with the inner surface wall of the bottom of the male key block in a screwing mode through a fastener.
6. The male key type inflatable shaft with multi-stage adjusting function according to claim 5, wherein an elastic cushion is fixedly arranged on the inner surface wall of the top of the pressing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110493938.1A CN113294445B (en) | 2021-05-07 | 2021-05-07 | Convex key type air expansion shaft with multistage adjusting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110493938.1A CN113294445B (en) | 2021-05-07 | 2021-05-07 | Convex key type air expansion shaft with multistage adjusting function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113294445A CN113294445A (en) | 2021-08-24 |
| CN113294445B true CN113294445B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110493938.1A Active CN113294445B (en) | 2021-05-07 | 2021-05-07 | Convex key type air expansion shaft with multistage adjusting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294445B (en) |
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| CN113294445A (en) | 2021-08-24 |
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Country or region after: China Address after: No. 128, hulutou, Changfeng Village Committee, Dingyan street, Changzhou Economic Development Zone, Jiangsu Province, 213000 Applicant after: Changzhou Rongjiu Machinery Co.,Ltd. Address before: No. 128, hulutou, Changfeng Village Committee, Dingyan street, Changzhou Economic Development Zone, Jiangsu Province, 213000 Applicant before: Changzhou Rongjiu Machinery Co.,Ltd. Country or region before: China |
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