CN210461368U - Screw pair driven scissor type telescopic two-force rod - Google Patents
Screw pair driven scissor type telescopic two-force rod Download PDFInfo
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- CN210461368U CN210461368U CN201920530720.7U CN201920530720U CN210461368U CN 210461368 U CN210461368 U CN 210461368U CN 201920530720 U CN201920530720 U CN 201920530720U CN 210461368 U CN210461368 U CN 210461368U
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Abstract
The utility model discloses a flexible two power poles of fork are cut in vice drive of spiral, it relates to two power pole technical field. A scissor fork mechanism of the scissor fork mechanism comprises a plurality of parallelograms, each side of each parallelogram is hinged, a connecting end of each scissor fork mechanism is a hinged joint, one end of each scissor fork mechanism is provided with a screw driving device, the screw driving device is arranged between two hinged joints on a diagonal line of the parallelogram parallel to the telescopic direction, a hinged shaft is arranged at the hinged joint, a through hole is arranged on the hinged shaft at the hinged joint of the screw driving device and the scissor fork mechanism, an internal thread is arranged in the through hole, the screw driving device is a screw rod, the external thread of the screw rod is a small pitch trapezoidal thread, the external thread of the screw rod corresponds to the internal thread of the through hole, and a transmission end of the screw driving device penetrates through the through. The utility model has the advantages that: it can change the distance of two pin joints, relies on the linkage effect of cutting fork mechanism to realize cutting fork mechanism's whole multiplication flexible, reaches the purpose of the length of change pole.
Description
Technical Field
The utility model relates to a two power poles technical field, concretely relates to flexible two power poles of fork are cut in vice drive of spiral.
Background
The two-force rod is an object which has resultant force on a connecting line of two hinge points in a balanced state and is stressed in equal magnitude and opposite directions. The two-force rod is an important component unit of a rod mechanism and a truss mechanism, and is commonly applied in industry. The two-force rod is a complete series combination of a single-row multi-group parallelogram four-bar linkage, and two ends of the rod body are hinged structures.
The length of the conventional two-force rod is unchanged, and the conventional scissor lifting mechanism does not have the telescopic characteristic, and is not used in a rod mechanism, so that the motion law of the conventional scissor lifting mechanism cannot be changed when the conventional scissor lifting mechanism is applied to a determined mechanism. The use of a conventional scissor mechanism (multiple rows) in an elevator is shown in fig. 1. In order to realize the change of a plurality of different motion laws in one mechanism according to the requirement, a telescopic two-force rod is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide flexible two power poles of fork are cut in the vice drive of spiral, can change the distance of two pin joints, rely on the linkage effect of cutting fork mechanism to realize that the whole multiplication of cutting fork mechanism is flexible, reach the purpose of the length of change bar.
In order to solve the technical problem, the utility model adopts the technical scheme that: the device comprises a scissor mechanism, a hinge point and a spiral driving device; the scissors fork mechanism is composed of a plurality of parallelograms, each side of each parallelogram is hinged, the connecting end of each scissors fork mechanism is a hinged joint, a spiral driving device is installed at one end of each scissors fork mechanism and is arranged between two hinged joints on a diagonal line of the parallelogram parallel to the telescopic direction, a hinged shaft is arranged at the hinged joint, a through hole is formed in the hinged shaft at the hinged joint of the spiral driving device and the scissors fork mechanism, the through hole is longitudinally arranged and internally provided with an internal thread, the spiral driving device is a screw rod, the external thread of the screw rod is a small-pitch trapezoidal thread, the external thread of the screw rod corresponds to the internal thread of the through hole, and the transmission end of the spiral driving device penetrates through the through hole of the hinged shaft.
Further, the screw driving device is installed at one end of the scissor fork mechanism, the screw driving device is arranged between two hinge joints on a diagonal line of the parallelogram perpendicular to the telescopic direction, hinge shafts are arranged at the hinge joints, a through hole is formed in the hinge shaft at the hinge joint of the screw driving device and the scissor fork mechanism, the through hole is transversely arranged and internally provided with an internal thread, the screw driving device is a screw rod, an external thread of the screw rod is a small-pitch trapezoidal thread, the external thread of the screw rod corresponds to the internal thread of the through hole, and a transmission end of the screw driving device penetrates through the through hole of the hinge shaft.
Furthermore, the screw driving device is connected with an electric driving device or a hydraulic driving device.
After adopting the structure, the utility model has the advantages that: it can change the distance of two pin joints, relies on the linkage effect of cutting fork mechanism to realize cutting fork mechanism's whole multiplication flexible, reaches the purpose of the length of change pole.
Drawings
FIG. 1 is a schematic diagram of an application structure of a scissor mechanism in an elevator in the prior art;
fig. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic view of a length-shortened structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second embodiment of the present invention;
fig. 5 is a schematic structural view of the second embodiment of the present invention after the length is shortened.
Description of reference numerals: the device comprises a first scissors mechanism 11, a first hinge point 12, a sliding block 13, a scissors mechanism 1, a hinge point 2 and a spiral driving device 3.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 2 and fig. 3, the following technical solutions are adopted in the present embodiment: the device comprises a scissor mechanism 1, a hinge point 2 and a spiral driving device 3; the scissor mechanism 1 is composed of a plurality of parallelograms, each side of each parallelogram is hinged, the connecting end of the scissor mechanism 1 is a hinged point 2, a spiral driving device 3 is installed at one end of the scissor mechanism 1, the spiral driving device 3 is arranged between two hinged points 2 on a parallelogram diagonal line parallel to the telescopic direction, a hinged shaft is arranged at the hinged point 2, a through hole is arranged on the hinged shaft at the hinged point 2 where the spiral driving device 3 is connected with the scissor mechanism 1, the through hole is longitudinally arranged and internally provided with an internal thread, the spiral driving device 3 is a screw rod, the external thread of the screw rod is a small-pitch trapezoidal thread with a self-locking function, the two-force rod is safe and reliable in work, the external thread of the screw rod corresponds to the internal thread of the through hole, the transmission end of the spiral driving device 3 penetrates through the through hole of the hinged shaft.
Further, the screw driving device 3 is connected with an electric driving device or a hydraulic driving device.
The second embodiment is as follows:
as shown in fig. 4 and 5, the following technical solutions are adopted in the present embodiment: the device comprises a scissor mechanism 1, a hinge point 2 and a spiral driving device 3; the scissor mechanism 1 is composed of a plurality of parallelograms, each side of each parallelogram is hinged, the connecting end of the scissor mechanism 1 is a hinged point 2, the spiral driving device 3 is installed at one end of the scissor mechanism 1, the spiral driving device 3 is arranged between two hinged points 2 on a diagonal line of the parallelogram perpendicular to the telescopic direction, a hinged shaft is arranged at the hinged point 2, a through hole is arranged on the hinged shaft at the hinged point 2 where the spiral driving device 3 is connected with the scissor mechanism 1, the through hole is transversely arranged and internally provided with an internal thread, the spiral driving device 3 is a screw rod, the external thread of the screw rod is a small-pitch trapezoidal thread with a self-locking function, the two-force rod is safe and reliable in work, the external thread of the screw rod corresponds to the internal thread of the through hole, the transmission end of the spiral driving device 3 penetrates through the through hole of the.
Further, the screw driving device 3 is connected with an electric driving device or a hydraulic driving device.
The working principle is as follows: the spiral pair driving scissor type (a plurality of groups of single-row combination) telescopic two-force rods are composed of a telescopic scissor mechanism 1 and a spiral driving device 3, wherein two ends of the telescopic scissor mechanism 1 are hinged points 2; the screw driving device 3 is arranged at a specific position of the scissor mechanism 1, the distance between the two hinge points 2 is changed through the rotation of the screw rod and the internal thread of the through hole, the integral multiplication and expansion of the scissor mechanism 1 are realized by means of the linkage action of the scissor mechanism 1, and the purpose of changing the length of the rod is achieved; besides bearing axial force, the screw driving device can bear certain lateral force and moment, and the change of the external force driving mode of the screw driving device can be realized by various driving modes such as manual driving, electric driving, hydraulic driving and the like. The structure and principle of the above-described hinge means are known to those skilled in the art through technical manuals or through routine experimentation and will not be described.
This embodiment can change the distance of two pin joints, relies on the linkage effect of cutting fork mechanism to realize cutting fork mechanism's whole multiplication flexible, reaches the purpose of the length of change pole.
The basic principles and main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The flexible two power poles of fork are cut in vice drive of spiral, its characterized in that: comprises a scissor mechanism, a hinge point and a spiral driving device; the scissors fork mechanism is composed of a plurality of parallelograms, each side of each parallelogram is hinged, the connecting end of each scissors fork mechanism is a hinged joint, a spiral driving device is installed at one end of each scissors fork mechanism and is arranged between two hinged joints on a diagonal line of the parallelogram parallel to the telescopic direction, a hinged shaft is arranged at the hinged joint, a through hole is formed in the hinged shaft at the hinged joint of the spiral driving device and the scissors fork mechanism, the through hole is longitudinally arranged and internally provided with an internal thread, the spiral driving device is a screw rod, the external thread of the screw rod is a small-pitch trapezoidal thread, the external thread of the screw rod corresponds to the internal thread of the through hole, and the transmission end of the spiral driving device penetrates through the through hole of the hinged shaft.
2. The screw pair driven scissor telescopic two-force pole according to claim 1, wherein: the spiral driving device is installed at one end of the scissor fork mechanism, the spiral driving device is arranged between two hinge joints on a parallelogram diagonal line perpendicular to the telescopic direction, a hinge shaft is arranged at the hinge joint, a through hole is formed in the hinge shaft at the hinge joint of the spiral driving device and the scissor fork mechanism, the through hole is transversely arranged, an internal thread is arranged in the through hole, the spiral driving device is a screw rod, an external thread of the screw rod is a small-pitch trapezoidal thread, the external thread of the screw rod corresponds to the internal thread of the through hole, and a transmission end of the spiral driving device penetrates through the through hole of the hinge shaft.
3. The screw pair driven scissor telescopic two-force pole according to claim 1, wherein: the screw driving device is connected with the electric driving device or the hydraulic driving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920530720.7U CN210461368U (en) | 2019-04-18 | 2019-04-18 | Screw pair driven scissor type telescopic two-force rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920530720.7U CN210461368U (en) | 2019-04-18 | 2019-04-18 | Screw pair driven scissor type telescopic two-force rod |
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| Publication Number | Publication Date |
|---|---|
| CN210461368U true CN210461368U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920530720.7U Active CN210461368U (en) | 2019-04-18 | 2019-04-18 | Screw pair driven scissor type telescopic two-force rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN210461368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494184A (en) * | 2020-11-18 | 2021-03-16 | 上海云茜医疗器械有限公司 | Costal cartilage slicing device |
| CN113695803A (en) * | 2021-09-24 | 2021-11-26 | 重庆万马汽车制造(集团)有限公司 | Automatic welding assembly lifting platform |
-
2019
- 2019-04-18 CN CN201920530720.7U patent/CN210461368U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494184A (en) * | 2020-11-18 | 2021-03-16 | 上海云茜医疗器械有限公司 | Costal cartilage slicing device |
| CN112494184B (en) * | 2020-11-18 | 2024-03-01 | 上海云茜医疗器械有限公司 | Costal cartilage slicing device |
| CN113695803A (en) * | 2021-09-24 | 2021-11-26 | 重庆万马汽车制造(集团)有限公司 | Automatic welding assembly lifting platform |
| CN113695803B (en) * | 2021-09-24 | 2022-08-19 | 重庆万马汽车制造(集团)有限公司 | Automatic welding assembly lifting platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Spiral pair driven scissor type telescopic two force rod Effective date of registration: 20230810 Granted publication date: 20200505 Pledgee: Jiangsu Qidong rural commercial bank Co.,Ltd. Pledgor: JIANGSU NANFANG LUBRICATION CO.,LTD. Registration number: Y2023980051555 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20200505 Pledgee: Jiangsu Qidong rural commercial bank Co.,Ltd. Pledgor: JIANGSU NANFANG LUBRICATION CO.,LTD. Registration number: Y2023980051555 |