CN220540091U - Adjustable connecting shaft for water-air sealing machine - Google Patents
Adjustable connecting shaft for water-air sealing machine Download PDFInfo
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- CN220540091U CN220540091U CN202321581493.3U CN202321581493U CN220540091U CN 220540091 U CN220540091 U CN 220540091U CN 202321581493 U CN202321581493 U CN 202321581493U CN 220540091 U CN220540091 U CN 220540091U
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- wall
- connecting rod
- arc
- center tube
- central tube
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- 238000007789 sealing Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to an adjustable connecting shaft for a water air seal machine. This adjustable connecting axle for water vapor sealing machine includes the center tube, install the pivot in the center tube, the upside of pivot is equipped with forward screw thread section, the downside is equipped with reverse screw thread section, be equipped with in the center tube with forward screw thread section assorted last round platform piece and with reverse screw thread section assorted round platform piece down, the outside of center tube is equipped with the arc, a plurality of arc encloses into the drum that has the slot, the medial surface of arc has last connecting rod and lower connecting rod, go up the inner and last round platform piece outer wall butt of connecting rod, the inner and the round platform piece butt down of lower connecting rod, go up the return spring is equipped with respectively to the cover on connecting rod and the lower connecting rod, return spring's both ends respectively with center tube outer wall and arc inner wall fixed connection. Compared with the prior art, the external diameter of the adjustable connecting shaft for the water-air seal machine can be adjusted according to the needs, so that the convenience of use is improved, and the use cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of connecting shafts, and particularly relates to an adjustable connecting shaft for a water air tightness machine.
Background
The existing automobile hub air tightness testing machine generally adopts a vertical or horizontal working platform, water is injected into a testing barrel by a water injection system, and after the water overflows the hub, air leakage conditions of the aluminum hub are tested by visually observing air bubbles generated when the aluminum hub in the water leaks air, so that the air tightness testing machine is an air tightness testing method selected by most of domestic manufacturers. The water injection test mode generally comprises a pressure water injection test method and a workpiece upper and lower water injection test method. The pressure injection water injection test is the most widely used method today. The connecting shaft is an important component part for the air tightness test, the outer diameter of the existing connecting shaft cannot be adjusted according to the needs, and various connecting shafts with different diameters are required to be produced, so that the use cost is increased.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an adjustable connecting shaft for a water air sealing machine.
The utility model relates to a technical scheme of an adjustable connecting shaft for a water air seal machine, which comprises the following steps:
the utility model provides an adjustable connecting axle for water vapor sealing machine, includes the center tube, the pivot is installed in the center tube internal rotation, the upside of pivot is equipped with forward screw thread section, downside is equipped with reverse screw thread section, be equipped with in the center tube with forward screw thread section assorted goes up round platform piece and with reverse screw thread section assorted lower round platform piece, the outside of center tube is equipped with a plurality of arc, a plurality of the arc encloses into the drum that has the slot, the medial surface of arc has radial insertion the last connecting rod and the lower connecting rod of center tube, go up the connecting rod inner with go up round platform piece outer wall butt, the inner of lower connecting rod with lower round platform piece butt, go up the cover respectively on connecting rod and the lower connecting rod and be equipped with reset spring, reset spring's both ends respectively with center tube outer wall and arc inner wall fixed connection, the inside upper end of center tube is equipped with the drive pivot pivoted hand wheel.
Further, the lower end of center tube seals, upper end opening, the lower extreme of pivot is installed through the bearing rotation the bottom central point of center tube puts, the inside upper end of center tube is equipped with the support, the upper end of pivot is installed on the support through the pivot rotation, the hand wheel fixed connection is in the upper end of pivot.
Further, the support comprises a fixed ring and a plurality of support rods, wherein the fixed ring and the central tube are coaxially arranged, and two ends of the support rods are fixedly connected with the outer wall of the fixed ring and the inner wall of the central tube respectively.
Further, the upper end and the lower end of the arc-shaped plate are respectively positioned at the upper side and the lower side of the central tube.
Further, an upper limit structure moving along the up-down direction is arranged between the upper round table block and the central tube, and a lower limit structure moving along the up-down direction is arranged between the lower round table block and the central tube.
Further, go up limit structure including fixed connection go up the guide bar of round platform piece outer wall and offer go up the guide way on the center tube inner wall, lower limit structure includes fixed connection lower guide bar of round platform piece outer wall and offer down the guide way on the center tube inner wall.
Further, an upper contact plate is arranged at the inner end of the upper connecting rod, the inner wall of the upper contact plate is an arc surface matched with the outer wall of the upper round table block, a lower contact plate is arranged at the inner end of the lower connecting rod, and the inner wall of the lower contact plate is an arc surface matched with the outer wall of the lower round table block.
The utility model provides an adjustable connecting shaft for a water air sealing machine, which has the beneficial effects that compared with the prior art:
when the adjustable connecting shaft for the water air tightness machine is used, and the outer diameter of the connecting shaft is required to be increased, the hand wheel is rotated, and the hand wheel drives the rotating shaft to rotate. The rotating shaft drives the upper round platform block and the lower round platform block to move through the forward thread section and the reverse thread section. The upper round platform block moves vertically upwards under the limit of the upper limit structure, and the lower round platform block moves vertically downwards under the limit of the lower limit structure. In the upward movement process of the upper round platform block, the upper round platform block pushes the upper connecting rod to move towards the outer side of the central tube, and in the downward movement process of the lower round platform block, the lower round platform block pushes the lower connecting rod to move towards the outer wall of the central tube, and the arc-shaped plate moves outwards along with the movement of the lower round platform block, so that the outer diameter of the connecting shaft is enlarged. When the outer diameter of the connecting shaft is required to be reduced, the hand wheel is reversely rotated, the arc-shaped plate moves towards the direction close to the central tube under the action of the return spring, and the diameter of the connecting shaft is reduced. Compared with the prior art, the external diameter of the adjustable connecting shaft for the water-air seal machine can be adjusted according to the needs, so that the convenience of use is improved, and the use cost is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an adjustable connecting shaft for a water air seal machine of the present utility model;
FIG. 2 is a schematic view of the internal structure of the adjustable connecting shaft for the water air seal machine of the present utility model;
in the figure: 1. a central tube; 2. a rotating shaft; 3. a bracket; 4. a hand wheel; 5. an arc-shaped plate; 6. a round platform block is arranged on the upper part; 7. an upper connecting rod; 8. a return spring; 9. an upper contact plate; 10. a lower round table block; 11. a lower connecting rod; 12. and a lower contact plate.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and detailed description:
the embodiment of the adjustable connecting shaft for the water-air sealing machine comprises a central tube 1, a rotating shaft 2 is rotatably arranged in the central tube 1, a forward thread section is arranged on the upper side of the rotating shaft 2, a reverse thread section is arranged on the lower side of the rotating shaft, an upper round table block 6 matched with the forward thread section and a lower round table block 10 matched with the reverse thread section are arranged in the central tube 1, a plurality of arc plates 5 are arranged on the outer side of the central tube 1, a cylinder with a slit is surrounded by the arc plates 5, an upper connecting rod 7 and a lower connecting rod 11 which are radially inserted into the central tube 1 are arranged on the inner side of the arc plates 5, the inner end of the upper connecting rod 7 is in butt joint with the outer wall of the upper round table block 6, the inner end of the lower connecting rod 11 is in butt joint with the lower round table block 10, reset springs 8 are respectively sleeved on the upper connecting rod 7 and the lower connecting rod 11, two ends of the reset springs 8 are fixedly connected with the outer wall of the central tube 1 and the inner wall of the arc plates 5 respectively, and a hand wheel 4 for driving the rotating shaft 2 is arranged on the upper end of the inner part of the central tube 1.
In this embodiment, the lower extreme of center tube 1 seals, the upper end opening, and the lower extreme of pivot 2 passes through the bearing rotation and installs in the bottom central point of center tube 1, and the inside upper end of center tube 1 is equipped with support 3, and the upper end of pivot 2 passes through pivot 2 rotation and installs on support 3, and hand wheel 4 fixed connection is in the upper end of pivot 2. The support 3 comprises a fixed ring and a plurality of support rods, wherein the fixed ring and the central tube 1 are coaxially arranged, and two ends of each support rod are fixedly connected with the outer wall of the fixed ring and the inner wall of the central tube 1 respectively. The upper and lower ends of the arc-shaped plate 5 are respectively positioned on the upper and lower sides of the central tube 1. An upper limit structure moving along the up-down direction is arranged between the upper round table block 6 and the central tube 1, and a lower limit structure moving along the up-down direction is arranged between the lower round table block 10 and the central tube 1. The upper limit structure comprises an upper guide rod fixedly connected with the outer wall of the upper round platform block 6 and an upper guide groove formed in the inner wall of the central tube 1, and the lower limit structure comprises a lower guide rod fixedly connected with the outer wall of the lower round platform block 10 and a lower guide groove formed in the inner wall of the central tube 1. The inner end of the upper connecting rod 7 is provided with an upper contact plate 9, the inner wall of the upper contact plate 9 is an arc surface matched with the outer wall of the upper round platform block 6, the inner end of the lower connecting rod 11 is provided with a lower contact plate 12, and the inner wall of the lower contact plate 12 is an arc surface matched with the outer wall of the lower round platform block 10.
When the adjustable connecting shaft for the water air tightness machine is used, and the outer diameter of the connecting shaft is required to be increased, the hand wheel 4 is rotated, and the hand wheel 4 drives the rotating shaft 2 to rotate. The rotating shaft 2 drives the upper round platform block 6 and the lower round platform block 10 to move through the forward thread section and the reverse thread section. Wherein, the upper round platform block 6 moves vertically upwards under the limit of the upper limit structure, and the lower round platform block 10 moves vertically downwards under the limit of the lower limit structure. In the upward movement process of the upper round table block 6, the upper round table block 6 pushes the upper connecting rod 7 to move towards the outer side of the central tube 1, in the downward movement process of the lower round table block 10, the lower round table block 10 pushes the lower connecting rod 11 to move towards the outer wall of the central tube 1, and the arc-shaped plate 5 moves outwards along with the movement, so that the outer diameter of the connecting shaft is enlarged. When the outer diameter of the connecting shaft is required to be reduced, the hand wheel 4 is reversely rotated, the arc-shaped plate 5 moves towards the direction close to the central tube 1 under the action of the return spring 8, and the diameter of the connecting shaft is reduced. Compared with the prior art, the external diameter of the adjustable connecting shaft for the water-air seal machine can be adjusted according to the needs, so that the convenience of use is improved, and the use cost is reduced.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides an adjustable connecting axle for water vapor sealing machine, its characterized in that, includes the center tube, the pivot is installed in the center tube internal rotation, the upside of pivot is equipped with forward screw thread section, downside is equipped with reverse screw thread section, be equipped with in the center tube with forward screw thread section assorted goes up round platform piece and with reverse screw thread section assorted lower round platform piece, the outside of center tube is equipped with a plurality of arc, and a plurality of the arc encloses into the drum that has the slot, the medial surface of arc has radial insertion last connecting rod and the lower connecting rod of center tube, go up the connecting rod inner with go up round platform piece outer wall butt, the inner of lower connecting rod with lower round platform piece butt, go up the cover respectively on connecting rod and the lower connecting rod has reset spring, reset spring's both ends respectively with center tube outer wall and arc inner wall fixed connection, the inside upper end of center tube is equipped with the drive pivot pivoted hand wheel.
2. The adjustable connecting shaft for a water air tightness machine according to claim 1, wherein the lower end of the central tube is sealed, the upper end of the central tube is opened, the lower end of the rotating shaft is rotatably mounted at the bottom central position of the central tube through a bearing, a bracket is arranged at the upper end of the inside of the central tube, the upper end of the rotating shaft is rotatably mounted on the bracket through the rotating shaft, and the hand wheel is fixedly connected at the upper end of the rotating shaft.
3. The adjustable connecting shaft for a water air seal machine according to claim 2, wherein the bracket comprises a fixed ring and a plurality of supporting rods, the fixed ring and the central tube are coaxially arranged, and two ends of the supporting rods are fixedly connected with the outer wall of the fixed ring and the inner wall of the central tube respectively.
4. The adjustable connecting shaft for a water air seal machine according to claim 1, wherein the upper and lower ends of the arc plate are located at the upper and lower sides of the center tube, respectively.
5. The adjustable connecting shaft for a water air seal machine according to claim 1, wherein an upper limit structure moving in an up-down direction is arranged between the upper round table block and the central tube, and a lower limit structure moving in the up-down direction is arranged between the lower round table block and the central tube.
6. The adjustable connecting shaft for a water air seal machine according to claim 5, wherein the upper limiting structure comprises an upper guide rod fixedly connected to the outer wall of the upper circular truncated cone block and an upper guide groove formed in the inner wall of the central tube, and the lower limiting structure comprises a lower guide rod fixedly connected to the outer wall of the lower circular truncated cone block and a lower guide groove formed in the inner wall of the central tube.
7. The adjustable connecting shaft for a water air seal machine according to claim 1, wherein an inner end of the upper connecting rod is provided with an upper contact plate, an inner wall of the upper contact plate is an arc surface matched with an outer wall of the upper round table block, an inner end of the lower connecting rod is provided with a lower contact plate, and an inner wall of the lower contact plate is an arc surface matched with an outer wall of the lower round table block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321581493.3U CN220540091U (en) | 2023-06-20 | 2023-06-20 | Adjustable connecting shaft for water-air sealing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321581493.3U CN220540091U (en) | 2023-06-20 | 2023-06-20 | Adjustable connecting shaft for water-air sealing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220540091U true CN220540091U (en) | 2024-02-27 |
Family
ID=89963823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321581493.3U Active CN220540091U (en) | 2023-06-20 | 2023-06-20 | Adjustable connecting shaft for water-air sealing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220540091U (en) |
-
2023
- 2023-06-20 CN CN202321581493.3U patent/CN220540091U/en active Active
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