CN212899595U - Telescopic transmission assembly device - Google Patents
Telescopic transmission assembly device Download PDFInfo
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- CN212899595U CN212899595U CN202021735892.7U CN202021735892U CN212899595U CN 212899595 U CN212899595 U CN 212899595U CN 202021735892 U CN202021735892 U CN 202021735892U CN 212899595 U CN212899595 U CN 212899595U
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Abstract
The utility model relates to a transmission technical field especially relates to a telescopic transmission assembly device, include: the outer pipe is of a hollow structure; the inner pipe is of a hollow structure, is arranged in the outer pipe along the length extension direction of the outer pipe, partially protrudes out of the outer pipe at one end, is positioned in the outer pipe at the other end, and moves along the length extension direction of the outer pipe relative to the inner wall of the outer pipe; the screw rod is fixedly arranged inside the outer pipe along the length extension direction of the outer pipe, is partially positioned inside the inner pipe and rotates by taking the length extension direction of the outer pipe as an axis; the screw rod nut is fixedly arranged in the inner tube and is matched with the screw rod; the transmission assembly is arranged inside the outer pipe and transmits power to the screw rod to drive the screw rod to rotate. The utility model discloses in, simple structure is practical, realizes flexible function through lead screw and screw-nut for the lift process is more stable, and the noise is lower, and life is high, and is not fragile.
Description
Technical Field
The utility model relates to the field of transmission technology, especially, relate to a telescopic transmission assembly device.
Background
The lifting upright column is widely applied to the fields of home furnishing, medical treatment and the like, a pipe body of the existing lifting upright column generally comprises an inner pipe, an outer pipe, a bottom shell fixedly connected with the upper end of the inner pipe, a driving device arranged in the bottom shell and a transmission assembly device matched with the driving device in a transmission way, and in order to realize the telescopic function of the lifting upright column, the transmission assembly device is generally provided with a transmission screw rod which is assembled together in a complete set, so that the relative telescopic of the inner pipe and the outer pipe is realized.
The transmission assembly device has the advantages of complex structure, more required parts and high processing difficulty; secondly flexible in-process can be with in power conduction to inner tube and outer tube, under the inhomogeneous condition of lift stand atress, can cause to produce the extrusion between inner tube and the outer tube, causes the transmission of lift stand unstable, and more serious can shorten the life-span of lift stand.
In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged with the application of theory to actively make research and innovation, so as to create a retractable transmission assembly device, which is more practical.
SUMMERY OF THE UTILITY MODEL
The utility model provides a telescopic transmission assembly device to effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a drive assembly apparatus comprising:
the outer pipe is of a hollow structure;
the inner pipe is of a hollow structure, is arranged in the outer pipe along the length extension direction of the outer pipe, partially protrudes out of the outer pipe at one end, is positioned in the outer pipe at the other end, and moves along the length extension direction of the inner wall of the outer pipe relative to the outer pipe;
the screw rod is fixedly arranged inside the outer pipe along the length extension direction of the outer pipe, part of the screw rod is positioned inside the inner pipe, and the screw rod rotates by taking the length extension direction of the outer pipe as an axis;
the screw rod nut is fixedly arranged inside the inner tube and is matched with the screw rod;
the transmission assembly is arranged inside the outer pipe and transmits power to the screw rod to drive the screw rod to rotate;
the transmission assembly drives the screw rod to rotate, and the relative position of the screw rod nut on the screw rod is changed through the mutual matching of the screw rod and the screw rod nut, so that the inner tube is driven to move along the length extending direction of the outer tube.
Further, the transmission assembly is a gear set, the gear set is fixedly arranged at one end, far away from the inner pipe, of the outer pipe, a transmission hole is formed in the position of the gear set, and the transmission hole is used for transmitting power to the gear set.
Furthermore, two fixing blocks are arranged in the outer pipe, and the gear set is fixedly arranged in the outer pipe through the two fixing blocks.
Further, the gear set comprises a first gear and a second gear, the first gear and the second gear are perpendicular to each other, the first gear takes the axis of the transmission hole as a rotation center, and the second gear and the screw rod are coaxially arranged.
Further, the screw-nut is fixedly arranged at one end, located in the outer tube, of the inner tube, two haversian blocks are arranged in the inner tube, and the screw-nut is fixedly arranged in the inner tube through the two haversian blocks.
Furthermore, a limiting block is arranged at one end, far away from the transmission assembly, of the screw rod, and the limiting block is used for limiting the screw rod nut to be separated from the screw rod.
Furthermore, the outer tube is fixedly provided with a slide bar at one end far away from the transmission assembly, and the slide bar is positioned between the outer tube and the inner tube.
Further, a sliding block is arranged at one end, close to the transmission assembly, of the inner pipe, and the sliding block is located between the outer pipe and the inner pipe.
The utility model has the advantages that: the utility model discloses a set up the outer tube, the inner tube, the lead screw, screw-nut and drive assembly, outside power transmission is for drive assembly, drive assembly drive lead screw is rotatory, the lead screw is mutually supported with the lead screw, can change the relative position that screw-nut is located the lead screw when the lead screw is rotatory, thereby it removes along outer length extending direction to drive the inner tube, thereby realize flexible function, simple structure is practical, realize flexible function through lead screw and screw-nut, make the lift process more stable, the noise is lower, long service life is high, and is not fragile.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in 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 structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view taken along B-B;
fig. 5 is a partially enlarged view of C in fig. 4.
Reference numerals: 1. An outer tube; 11. a slide bar; 2. an inner tube; 21. a slider; 3. a screw rod; 31. a limiting block; 4. a feed screw nut; 41. a Harvard block; 5. a transmission assembly; 51. a transfer aperture; 52. a fixed block; 53. a first gear; 54. a second gear.
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.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 5, a retractable transmission assembly apparatus includes:
the outer tube 1, the outer tube 1 is a hollow structure;
the inner pipe 2 is of a hollow structure, the inner pipe 2 is arranged inside the outer pipe 1 along the length extension direction of the outer pipe 1, one end of the inner pipe 2 partially protrudes out of the outer pipe 1, the other end of the inner pipe is positioned inside the outer pipe 1, and the inner pipe 2 moves along the length extension direction of the inner wall of the outer pipe 1 relative to the outer pipe 1;
the screw rod 3 is fixedly arranged inside the outer pipe 1 along the length extension direction of the outer pipe 1, part of the screw rod 3 is positioned inside the inner pipe 2, and the screw rod 3 rotates by taking the length extension direction of the outer pipe 1 as an axis;
the screw rod 3 nut is fixedly arranged in the inner tube 2 and is matched with the screw rod 3;
the transmission assembly 5 is arranged inside the outer pipe 1, and the transmission assembly 5 transmits power to the screw rod 3 to drive the screw rod 3 to rotate;
the transmission assembly 5 drives the screw rod 3 to rotate, and the relative position of the screw rod 3 nut on the screw rod 3 is changed by the mutual matching of the screw rod 3 and the screw rod 3 nut, so that the inner pipe 2 is driven to move along the length extending direction of the outer pipe 1.
Through setting up outer tube 1, inner tube 2, lead screw 3, 3 nuts of lead screw and drive assembly 5, outside power transmission gives drive assembly 5, drive assembly 5 drive lead screw 3 is rotatory, lead screw 3 and lead screw 3 mutually support, can change the relative position that 3 nuts of lead screw are located on the lead screw 3 when 3 rotatory, thereby it removes to drive 1 length extending direction of outer tube along inner tube 2, thereby realize flexible function, moreover, the steam generator is simple in structure and practical, realize flexible function through 3 nuts of lead screw 3 and lead screw, make the lift process more stable, the noise is lower, long service life is high, it is not fragile.
Preferably, the transmission assembly 5 is a gear set, the gear set is fixedly disposed at one end of the outer tube 1 far away from the inner tube 2, the outer tube 1 is provided with a transmission hole 51 at the gear set position, and the transmission hole 51 is used for transmitting power to the gear set.
Through setting up transmission assembly 5 into the gear train, compact structure, reliable operation, long service life, the transmission is comparatively accurate. Outer tube 1 is provided with transmission hole 51 in the gear train position, makes things convenient for outside power transmission to give the gear train, has increased the utility model discloses a practicality and reliability.
Preferably, two fixing blocks 52 are disposed in the outer tube 1, and the gear set is fixedly disposed in the outer tube 1 via the two fixing blocks 52.
Through with two fixed blocks 52 for the gear train fixed the setting in outer tube 1, simple structure, fixed firm, easy dismounting has increased the utility model discloses a practicality and convenience in use.
Preferably, the gear set includes a first gear 53 and a second gear 54, the first gear 53 and the second gear 54 are perpendicular to each other, the first gear 53 is rotated around the axis of the transmission hole 51, and the second gear 54 is disposed coaxially with the lead screw 3.
Through setting up first gear 53 and second gear 54, first gear 53 and second gear 54 mutually perpendicular for when outside power passes through transmission hole 51, take place to turn to, it is rotatory to drive lead screw 3, and simple structure is compact, and life is high, has increased the utility model discloses a practicality and reliability.
Preferably, in the above embodiment, the lead screw 3 is fixedly disposed at one end of the inner tube 2 located in the outer tube 1, two haver blocks 41 are disposed in the inner tube 2, and the lead screw 3 is fixedly disposed in the inner tube 2 through the two haver blocks 41.
Through setting up two pieces 41 of haveing not, lead screw 3 nut sets up in inner tube 2 through two fixed the setting in the piece 41 of haveing not, simple structure, and is fixed firm, easy dismounting has increased the utility model discloses a practicality and convenience in use.
Preferably, the screw rod 3 is provided with a stop block 31 at an end far away from the transmission assembly 5, and the stop block 31 is used for limiting the screw rod 3 to be separated from the screw rod 3.
Through setting up stopper 31, prevent flexible in-process, take place to break away from between lead screw 3 and the lead screw 3 nut for 5 power transmission of drive assembly become invalid, lose flexible function, increased the utility model discloses a practicality and reliability.
Preferably, the outer tube 1 is fixedly provided with a slide bar 11 at an end far away from the transmission assembly 5, and the slide bar 11 is located between the outer tube 1 and the inner tube 2.
By arranging the sliding strip 11, on one hand, the friction between the inner pipe 2 and the outer pipe 1 is reduced, the abrasion is reduced, and the noise is reduced; on the other hand, carry on spacingly between inner tube 2 and the outer tube 1, guarantee that the skew can not take place at flexible in-process inner tube 2 and outer tube 1 for the atress is balanced, has increased life, has increased the utility model discloses a practicality and reliability.
Preferably, the inner tube 2 is provided with a slider 21 at one end near the transmission assembly 5, and the slider 21 is located between the outer tube 1 and the inner tube 2.
By arranging the sliding block 21, on one hand, the friction between the inner tube 2 and the outer tube 1 is reduced, the abrasion is reduced, and the noise is reduced; on the other hand, carry on spacingly between inner tube 2 and the outer tube 1, guarantee that the skew can not take place at flexible in-process inner tube 2 and outer tube 1 for the atress is balanced, has increased life, has increased the utility model discloses a practicality and reliability.
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 (8)
1. A retractable transmission assembly apparatus, comprising:
the outer pipe (1), the outer pipe (1) is a hollow structure;
the inner pipe (2) is of a hollow structure, the inner pipe (2) is arranged inside the outer pipe (1) along the length extension direction of the outer pipe (1), one end of the inner pipe partially protrudes out of the outer pipe (1), the other end of the inner pipe is positioned in the outer pipe (1), and the inner pipe (2) moves along the length extension direction of the inner wall of the outer pipe (1) relative to the outer pipe (1);
the screw rod (3) is fixedly arranged inside the outer pipe (1) along the length extension direction of the outer pipe (1), part of the screw rod (3) is positioned inside the inner pipe (2), and the screw rod (3) rotates by taking the length extension direction of the outer pipe (1) as an axis;
the screw rod (3) nut is fixedly arranged in the inner tube (2) and is matched with the screw rod (3);
the transmission assembly (5) is arranged inside the outer pipe (1), and the transmission assembly (5) transmits power to the screw rod (3) to drive the screw rod (3) to rotate;
the transmission assembly (5) drives the screw rod (3) to rotate, and the relative position of the screw rod (3) nut on the screw rod (3) is changed by the mutual matching of the screw rod (3) and the screw rod (3) nut, so that the inner pipe (2) is driven to move along the length extension direction of the outer pipe (1).
2. The retractable transmission assembly device as claimed in claim 1, wherein the transmission assembly (5) is a gear set fixedly arranged at one end of the outer tube (1) far away from the inner tube (2), the outer tube (1) is provided with a transmission hole (51) at the gear set position, and the transmission hole (51) is used for transmitting power to the gear set.
3. The retractable transmission assembly device as set forth in claim 2, characterized in that two fixing blocks (52) are arranged in said outer tube (1), and said gear set is fixedly arranged in said outer tube (1) by means of said two fixing blocks (52).
4. The retractable transmission assembly according to claim 3, wherein said gear set comprises a first gear (53) and a second gear (54), said first gear (53) and said second gear (54) are perpendicular to each other, said first gear (53) is centered on the axis of said transmission hole (51), and said second gear (54) is coaxially disposed with said screw (3).
5. The telescopic transmission assembly device according to claim 4, wherein the screw rod (3) nut is fixedly arranged at one end of the inner pipe (2) positioned in the outer pipe (1), two Harvard blocks (41) are arranged in the inner pipe (2), and the screw rod (3) nut is fixedly arranged in the inner pipe (2) through the two Harvard blocks (41).
6. The telescopic transmission assembly device according to claim 1, wherein the screw (3) is provided with a stop block (31) at an end far away from the transmission assembly (5), and the stop block (31) is used for limiting the nut of the screw (3) to be separated from the screw (3).
7. The retractable transmission assembly arrangement as set forth in claim 1, characterized in that said outer tube (1) is fixedly provided with a slide (11) at an end remote from said transmission assembly (5), said slide (11) being located between said outer tube (1) and said inner tube (2).
8. Telescopic drive assembly device according to claim 7, wherein the inner tube (2) is provided with a slider (21) at one end near the drive component (5), the slider (21) being located between the outer tube (1) and the inner tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735892.7U CN212899595U (en) | 2020-08-18 | 2020-08-18 | Telescopic transmission assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735892.7U CN212899595U (en) | 2020-08-18 | 2020-08-18 | Telescopic transmission assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212899595U true CN212899595U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021735892.7U Active CN212899595U (en) | 2020-08-18 | 2020-08-18 | Telescopic transmission assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212899595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113452197A (en) * | 2021-05-28 | 2021-09-28 | 深圳市兆威机电股份有限公司 | Linear motor and device using same |
| CN114451751A (en) * | 2022-04-11 | 2022-05-10 | 常州市凯迪电器股份有限公司 | Drive assembly of linear driver, linear driver and electric lifting seat |
-
2020
- 2020-08-18 CN CN202021735892.7U patent/CN212899595U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113452197A (en) * | 2021-05-28 | 2021-09-28 | 深圳市兆威机电股份有限公司 | Linear motor and device using same |
| CN114451751A (en) * | 2022-04-11 | 2022-05-10 | 常州市凯迪电器股份有限公司 | Drive assembly of linear driver, linear driver and electric lifting seat |
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