CN217405684U - Telescopic device - Google Patents
Telescopic device Download PDFInfo
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- CN217405684U CN217405684U CN202221092560.0U CN202221092560U CN217405684U CN 217405684 U CN217405684 U CN 217405684U CN 202221092560 U CN202221092560 U CN 202221092560U CN 217405684 U CN217405684 U CN 217405684U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The embodiment of the utility model discloses telescoping device, include: the second-stage cylinder body is arranged in the first-stage cylinder body, and the third-stage cylinder body is arranged in the second-stage cylinder body; the driving piece is fixed at the bottom of the primary cylinder, and one end of the driving piece penetrates through the primary cylinder to be connected with the secondary cylinder; the secondary cylinder comprises a first ejector rod and a second ejector rod, the first ejector rod extends upwards from the bottom surface of the interior of the secondary cylinder, the free end of the first ejector rod penetrates into the interior of the tertiary cylinder, and a first pulley is arranged at the free end; the second ejector rod extends downwards from the bottom surface of the outer part of the secondary cylinder, the free end of the second ejector rod is positioned in the primary cylinder, and a second pulley is arranged at the free end; one end of the first connecting wire is connected with the third-stage cylinder, and the other end of the first connecting wire is connected to the inner wall of the first-stage cylinder by winding around the first pulley; and one end of the second connecting line is connected with the third-stage cylinder, and the other end of the second connecting line is connected to the inner wall of the first-stage cylinder after passing around the second pulley. The embodiment of the utility model provides a simple structure, easily control, and flexible.
Description
Technical Field
The utility model relates to an underwater vehicle field especially relates to a telescoping device.
Background
During the navigation process of a UUV (Unmanned underwater vehicle), the UUV can be classified into shallow sea positioning, sea positioning and seabed positioning according to the influence of depth on UUV underwater positioning. Shallow sea positioning generally refers to UUVs traveling at or near the surface where both radio and satellite signals can propagate. The UUV underwater positioning can be remotely controlled on a water surface ship or a platform through radio signals, and the accurate position information of the UUV can be obtained through a satellite positioning system (such as a GPS, a Beidou and the like). To ensure that the UUV is not exposed, the satellite positioning device is typically formed as a cylinder protruding from the surface of the UUV housing. In the prior art, the antenna is directly made into a cylindrical body and is placed at the end part for receiving signals; and some antenna bodies are made into telescopic mechanisms, so that the antenna body extends out when positioning is needed, and retracts after the positioning is finished.
However, the telescopic mechanism in the prior art is not freely retractable and has large sailing resistance, and no effective solution is provided for the problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a telescoping device through driving piece drive second grade barrel, further drives the tertiary barrel and stretches out and draws back in order to solve the telescoping device and receive and release problem not freely.
In order to achieve the above object, an embodiment of the present invention provides a telescopic device, including: the device comprises a primary cylinder, a secondary cylinder, a tertiary cylinder, a driving piece, a first connecting line, a second connecting line, a first pulley and a second pulley; the secondary cylinder body is arranged inside the primary cylinder body, and the tertiary cylinder body is arranged inside the secondary cylinder body; the driving piece is fixed at the bottom of the primary cylinder, and one end of the driving piece penetrates through the primary cylinder to be connected with the secondary cylinder; the secondary cylinder comprises a first ejector rod and a second ejector rod, the first ejector rod extends from the bottom surface of the interior of the secondary cylinder to the top end, the free end of the first ejector rod penetrates through the bottom of the tertiary cylinder and enters the interior of the tertiary cylinder, and a first pulley is arranged at the top of the free end; the second ejector rod extends from the bottom surface of the outer part of the secondary cylinder body to the opposite direction of the first ejector rod, the free end of the second ejector rod is positioned in the primary cylinder body, and the top of the free end is provided with a second pulley; one end of the first connecting wire is connected with the bottom surface inside the three-stage cylinder, and the other end of the first connecting wire bypasses the first pulley and sequentially penetrates through the three-stage cylinder and the two-stage cylinder to be connected to the inner wall of the first-stage cylinder; and one end of the second connecting line is connected with the bottom surface outside the third-stage cylinder, and the other end of the second connecting line penetrates through the second-stage cylinder and is connected with the inner wall of the first-stage cylinder after bypassing the second pulley.
Further optionally, the driving member includes a driving motor and a lead screw; an output shaft of the driving motor is connected with a lead screw; and a nut is arranged in the middle of the secondary cylinder body and is connected with the screw rod.
Further optionally, at least one first dynamic sealing ring is arranged between the primary cylinder and the secondary cylinder.
Further optionally, at least one second dynamic sealing ring is arranged between the second-stage cylinder and the third-stage cylinder.
Further optionally, the first-stage cylinder, the second-stage cylinder and the third-stage cylinder are all elliptic cylinders.
Further optionally, the first connecting line and the second connecting line are both steel wire ropes.
Further optionally, the primary cylinder includes a sleeve portion and a base portion which are integrally formed; the sleeve portion extends in a vertical direction from a distal end of the base portion; the sleeve part and the abutment part are hollow, and a hollow inner cavity of the sleeve part is communicated with a hollow inner cavity of the abutment part; the secondary cylinder body is arranged in the sleeve part, and the distance between the bottom surface of the secondary cylinder body and the bottom surface of the hollow inner cavity of the base part is preset.
Further optionally, the top surface of the base part extends outwards, and the extending part is provided with a fixing part which is used for connecting with an external mechanism.
The technical scheme has the following beneficial effects: the embodiment of the utility model provides a drive power is produced through the driving piece to the cooperation through ejector pin, pulley, connecting wire on the second grade barrel realizes the flexible of whole device, simple structure, and easily control, and flexible flexibility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of a telescopic device provided in an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an extension device according to an embodiment of the present invention;
fig. 3 is a schematic external structural diagram of a telescopic device provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the installation provided by the embodiment of the present invention.
Reference numerals: 1-first-stage cylinder 101-base part 102-sleeve part 2-second-stage cylinder 3-third-stage cylinder 4-driving part 401-driving motor 402-lead screw 5-first connecting wire 6-second connecting wire 7-first pulley 8-second pulley 9-first ejector rod 10-second ejector rod 11-nut 12-fixing part 13-underwater vehicle 14-first movable sealing ring 15-second movable sealing ring
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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
For realizing the nimble shrink of nimble mechanism, the utility model provides a telescoping device, figure 1 is the embodiment of the utility model provides a telescoping device's section structure schematic diagram, as shown in figure 1, the device includes: the device comprises a primary cylinder 1, a secondary cylinder 2, a tertiary cylinder 3, a driving piece 4, a first connecting line 5, a second connecting line 6, a first pulley 7 and a second pulley 8; the secondary cylinder 2 is arranged inside the primary cylinder 1, and the tertiary cylinder 3 is arranged inside the secondary cylinder 2; the driving piece 4 is fixed at the bottom of the primary cylinder 1, and one end of the driving piece 4 penetrates through the primary cylinder 1 and is connected with the secondary cylinder 2; the secondary cylinder 2 comprises a first ejector rod 9 and a second ejector rod 10, the first ejector rod 9 extends from the bottom surface of the interior of the secondary cylinder 2 to the top end, the free end of the first ejector rod passes through the bottom of the tertiary cylinder 3 and enters the interior of the tertiary cylinder 3, and the top of the free end is provided with a first pulley 7; the second ejector rod 10 extends from the bottom of the outer part of the secondary cylinder 2 to the opposite direction of the first ejector rod 9, the free end of the second ejector rod is positioned in the primary cylinder 1, and the top of the free end is provided with a second pulley 8; one end of the first connecting wire 5 is connected with the bottom surface inside the third-stage cylinder 3, and the other end of the first connecting wire bypasses the first pulley 7 and is connected to the inner wall of the first-stage cylinder 1 after sequentially penetrating through the third-stage cylinder 3 and the second-stage cylinder 2; 6 one end of second connecting wire is connected 3 outside bottom surfaces of tertiary barrel, and the other end passes second grade barrel 2 is connected after walking around second pulley 8 the 1 inner wall of one-level barrel.
Referring to fig. 1, the telescopic device comprises a primary barrel 1, a secondary barrel 2 and a tertiary barrel 3, wherein the primary barrel 1 is positioned on the outermost side, the secondary barrel 2 is nested inside the primary barrel 1, and the tertiary barrel 3 is nested inside the secondary barrel 2.
A first ejector rod 9 and a second ejector rod 10 are fixedly installed at the bottom of the secondary cylinder 2, one end of the first ejector rod 9 is fixed on the inner bottom surface of the secondary cylinder 2, the other end of the first ejector rod 9 penetrates through the tertiary cylinder 3 to enter the tertiary cylinder 3, and a first pulley 7 is installed at the top of the free end. First connecting wire 5 is wound on first pulley 7, and first connecting wire 5 one end is connected on one-level barrel 1, and the other end is connected on tertiary barrel 3.
One end of a second ejector rod 10 is fixed on the outer bottom surface of the secondary cylinder body 2, the other end of the second ejector rod is located in the hollow inner cavity of the primary cylinder body 1, and a second pulley 8 is arranged at the top of the free end. A second connecting wire 6 is wound on the second pulley 8, one end of the second connecting wire 6 is connected to the first-stage cylinder 1, and the other end of the second connecting wire 6 is connected to the third-stage cylinder 3.
The bottom of the outer side of the primary cylinder body 1 is provided with a driving piece 4, one end of the driving piece 4 penetrates through the primary cylinder body 1 to be matched with the secondary cylinder body 2, when the driving piece 4 is opened, the secondary cylinder body 2 can be directly driven to move upwards or downwards, the tertiary cylinder body 3 moves upwards along with the secondary cylinder body 2 under the action of the first connecting line 5 and the first pulley 7, and moves downwards along with the secondary cylinder body 2 under the action of the second connecting line 6 and the second pulley 8. Thereby realize nimble flexible, the antenna can be placed in tertiary barrel top.
As an alternative implementation manner, fig. 2 is a schematic cross-sectional structure diagram of an extension and retraction device provided in an embodiment of the present invention, and as shown in fig. 2, the driving member 4 includes a driving motor 401 and a lead screw 402; an output shaft of the driving motor 401 is connected with a lead screw 402; and a nut 11 is arranged in the middle of the secondary cylinder 2, and the nut 11 is connected with the screw 402.
A driving motor 401 is arranged at the bottom of the primary cylinder 1, an output shaft of the driving motor 401 is connected with a lead screw 402, and the lead screw 402 is matched with a nut 11 fixed at the center of the secondary cylinder 2.
As an alternative embodiment, at least one first dynamic sealing ring 14 is arranged between the primary cylinder 1 and the secondary cylinder 2.
Two first dynamic sealing rings 14 are arranged between the primary cylinder 1 and the secondary cylinder 2.
As an alternative embodiment, at least one second dynamic sealing ring 15 is arranged between the secondary cylinder 2 and the tertiary cylinder 3.
Two second dynamic sealing rings 15 are arranged between the secondary cylinder body 2 and the tertiary cylinder body 3.
Two dynamic sealing rings are arranged between the first-stage cylinder body 1 and the second-stage cylinder body 2, and two dynamic sealing rings are arranged between the second-stage cylinder body 2 and the third-stage cylinder body 3, so that the sealing performance in the action process of the telescopic machine is ensured.
As an optional implementation manner, fig. 3 is an external structure schematic diagram of the telescopic device provided in the embodiment of the present invention, as shown in fig. 3, the first-stage cylinder 1, the second-stage cylinder 2, and the third-stage cylinder 3 are all elliptic cylinders.
Because the first-stage cylinder body 1, the second-stage cylinder body 2 and the third-stage cylinder body 3 are designed to be elliptic cylindrical, the navigation resistance when the UUV antenna extends out is greatly reduced.
As an alternative embodiment, the first connection line 5 and the second connection line 6 are both steel wire ropes.
The steel wire rope is not easy to break, corrosion resistant and long in service life.
As an alternative embodiment, as shown in fig. 2, the primary cylinder 1 includes a sleeve portion 102 and a base portion 101 which are integrally formed; the sleeve portion 102 extends in the vertical direction from the distal end of the base portion 101; the sleeve portion 102 and the abutment portion 101 are hollow, and a hollow inner cavity of the sleeve portion 102 communicates with a hollow inner cavity of the abutment portion 101; the secondary cylinder 2 is disposed in the sleeve portion 102, and a predetermined distance is provided between the bottom surface of the secondary cylinder 2 and the bottom surface of the hollow cavity of the base portion 101.
Referring to fig. 1, the primary cylinder 1 comprises a sleeve portion 102 and a base portion 101, the sleeve portion 102 is smaller than the base portion 101, the secondary cylinder 2 and the tertiary cylinder 3 are nested inside the sleeve portion 102 in sequence, a hollow inner cavity of the base portion 101 is used for accommodating the second push rod 10, and when the distance between the bottom surface of the secondary cylinder 2 and the bottom surface of the hollow inner cavity of the base portion 101 is set to be a predetermined length, the second pulley 8 at the end of the second push rod 10 is not in contact with the cylinder wall of the primary cylinder 1 when the device is contracted to a basic state.
As an alternative embodiment, fig. 4 is a schematic structural diagram of the present invention during installation, as shown in fig. 4, the base part 101 extends outward from the top surface, and the extending part is provided with a fixing member 12, and the fixing member 12 is used for connecting with an external mechanism.
As shown in fig. 4, the abutment portion 101 extends with its top surface facing outwards to form an annular table through which the fixture 12 can be used for connection to the inner wall of the underwater vehicle 13.
In a first specific embodiment, referring to fig. 1 and 2, the device comprises a primary cylinder, a secondary cylinder and a tertiary cylinder, wherein the tertiary cylinder is nested inside the secondary cylinder, the secondary cylinder is nested inside the primary cylinder, two dynamic sealing rings are arranged between the primary cylinder and the secondary cylinder, and two dynamic sealing rings are arranged between the secondary cylinder and the tertiary cylinder. A first ejector rod and a second ejector rod are fixedly arranged on the secondary cylinder body, a first pulley is arranged at the end part of the first ejector rod, and a second pulley is arranged at the end part of the second ejector rod. A steel wire rope is wound on the first pulley, one end of the steel wire rope is connected to the first-stage cylinder, and the other end of the steel wire rope is connected to the third-stage cylinder; and a steel wire rope is wound on the second pulley, one end of the steel wire rope is connected to the first-stage cylinder, and the other end of the steel wire rope is connected to the third-stage cylinder. A driving motor is arranged at the bottom of the primary cylinder, an output shaft of the driving motor is connected with a lead screw, and the lead screw is matched with a nut fixed at the center of the secondary cylinder.
When the antenna needs to be extended, the driving motor rotates positively to drive the lead screw to rotate, the second-stage cylinder and the nut ascend along the lead screw, at the moment, the first ejector rod and the first pulley ascend together, the length of the steel wire rope is unchanged, and the first-stage cylinder is fixed, so that the third-stage cylinder also ascends synchronously under the action of the steel wire rope, the third-stage cylinder and the second-stage cylinder ascend synchronously, and the telescopic mechanism finishes the extending action.
When the antenna needs to retract, the driving motor reverses to drive the lead screw to rotate, the second-stage cylinder and the nut descend along the lead screw, at the moment, the second ejector rod and the second pulley also descend together, the length of the steel wire rope is unchanged, the first-stage cylinder is fixed, the third-stage cylinder also descends synchronously under the action of the steel wire rope, the third-stage cylinder and the second-stage cylinder descend synchronously together, and the telescopic mechanism finishes retracting action.
The technical scheme has the following beneficial effects: the embodiment of the utility model provides a drive power is produced through the driving piece to the cooperation through ejector pin, pulley, connecting wire on the second grade barrel realizes the flexible of whole device, simple structure, and easily control, and flexible flexibility. Because the first-stage cylinder body, the second-stage cylinder body and the third-stage cylinder body are all designed into the elliptic cylinder shape, the navigation resistance when the UUV antenna extends out is greatly reduced, two dynamic sealing rings are arranged between the first-stage cylinder body and the second-stage cylinder body, and two dynamic sealing rings are arranged between the second-stage cylinder body and the third-stage cylinder body, so that the sealing performance in the action process of the telescopic machine is ensured.
The above embodiments of the present invention have been described in further detail for the purpose, technical solutions and advantages of the present invention, and it should be understood that the above contents are only specific embodiments of the present invention, and are not used to limit the protection scope of the present invention, any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A telescopic device, characterized by comprising:
the device comprises a primary cylinder, a secondary cylinder, a tertiary cylinder, a driving piece, a first connecting line, a second connecting line, a first pulley and a second pulley;
the secondary cylinder body is arranged inside the primary cylinder body, and the tertiary cylinder body is arranged inside the secondary cylinder body;
the driving piece is fixed at the bottom of the primary cylinder, and one end of the driving piece penetrates through the primary cylinder to be connected with the secondary cylinder;
the secondary cylinder comprises a first ejector rod and a second ejector rod, the first ejector rod extends from the bottom surface of the interior of the secondary cylinder to the top end, the free end of the first ejector rod penetrates through the bottom of the tertiary cylinder and enters the interior of the tertiary cylinder, and a first pulley is arranged at the top of the free end;
the second ejector rod extends from the bottom surface of the outer part of the secondary cylinder body to the opposite direction of the first ejector rod, the free end of the second ejector rod is positioned in the primary cylinder body, and the top of the free end is provided with a second pulley;
one end of the first connecting wire is connected with the inner bottom surface of the third-stage cylinder, and the other end of the first connecting wire bypasses the first pulley and sequentially passes through the third-stage cylinder and the second-stage cylinder and then is connected to the inner wall of the first-stage cylinder;
and one end of the second connecting line is connected with the bottom surface outside the third-stage cylinder, and the other end of the second connecting line penetrates through the second-stage cylinder and is connected with the inner wall of the first-stage cylinder after bypassing the second pulley.
2. The telescopic device according to claim 1, wherein:
the driving piece comprises a driving motor and a lead screw;
an output shaft of the driving motor is connected with a lead screw;
and a nut is arranged in the middle of the secondary cylinder body and is connected with the screw rod.
3. The telescopic device according to claim 1, wherein:
at least one first movable sealing ring is arranged between the primary cylinder body and the secondary cylinder body.
4. The telescopic device according to claim 1, wherein:
at least one second movable sealing ring is arranged between the second-stage cylinder body and the third-stage cylinder body.
5. The telescopic device according to claim 1, wherein:
the first-stage cylinder, the second-stage cylinder and the third-stage cylinder are all elliptic cylinders.
6. The telescopic device according to claim 1, wherein:
the first connecting line and the second connecting line are both steel wire ropes.
7. The telescopic device according to claim 1, wherein:
the primary cylinder comprises a sleeve part and a base part which are integrally formed;
the sleeve portion extends in a vertical direction from a distal end of the base portion;
the sleeve part and the abutment part are hollow, and a hollow inner cavity of the sleeve part is communicated with a hollow inner cavity of the abutment part;
the secondary cylinder body is arranged in the sleeve part, and the distance between the bottom surface of the secondary cylinder body and the bottom surface of the hollow inner cavity of the base part is preset.
8. The telescopic device according to claim 7, wherein:
the top surface of the base portion extends outwards, and a fixing piece is arranged on the extending portion and used for being connected with an external mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221092560.0U CN217405684U (en) | 2022-05-09 | 2022-05-09 | Telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221092560.0U CN217405684U (en) | 2022-05-09 | 2022-05-09 | Telescopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217405684U true CN217405684U (en) | 2022-09-09 |
Family
ID=83144132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221092560.0U Active CN217405684U (en) | 2022-05-09 | 2022-05-09 | Telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217405684U (en) |
-
2022
- 2022-05-09 CN CN202221092560.0U patent/CN217405684U/en active Active
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