CN218791101U - Internal transmission screw rod structure of lifting table - Google Patents
Internal transmission screw rod structure of lifting table Download PDFInfo
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- CN218791101U CN218791101U CN202223165335.8U CN202223165335U CN218791101U CN 218791101 U CN218791101 U CN 218791101U CN 202223165335 U CN202223165335 U CN 202223165335U CN 218791101 U CN218791101 U CN 218791101U
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- screw
- nut
- lead screw
- screw rod
- fixed block
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Abstract
The utility model discloses an inside transmission lead screw structure of lift table, including little lead screw and hollow lead screw, little lead screw drives the cavity lead screw rotation through the integral key shaft that sets up in one end, and the cavity lead screw slides along axial direction, and little lead screw is equipped with screw-nut, and screw-nut has the fixing base through the bolt fastening, through the articulated cavity lead screw of bearing in the fixing base, and the cavity lead screw is equipped with cavity screw-nut, and cavity screw-nut external fixation has detachable fixed block group spare. The hollow screw rod is connected with a screw rod nut sleeved on the small screw rod through a fixed seat, so that when the small screw rod rotates through the driving device, the hollow screw rod moves along the axial direction. The spline at the bottom of the small screw rod drives the hollow screw rod to rotate, and the hollow screw rod nut moves up and down along the hollow screw rod. The fixed block component can fix the innermost-layer table leg, and the lead screw nut can fix the second-layer table leg, so that three-level lifting of the table leg is realized. The fixed block component can be detached, and is convenient to install simply.
Description
Technical Field
The utility model belongs to lift table field, concretely relates to inside transmission lead screw structure of lift table.
Background
People can use the desk in office and study, cervical spondylosis is easily caused in the long-term office and study process, and cervical spondylosis can be effectively prevented by correct sitting posture. The existing office table is designed into a hand-operated or electric height-adjusting office table in order to be suitable for users with different body types.
The inside transmission lead screw structure of lift table in the existing market includes little lead screw and hollow lead screw, and little lead screw passes through screw-nut and drives the rotation of cavity lead screw, and cavity lead screw reciprocates along the axial, and the cavity screw-nut on the cavity lead screw reciprocates along the axial equally to realize the tertiary lift of table leg. The existing hollow screw rod nut is of an integrated structure, and is troublesome to install and disassemble.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an inside transmission lead screw structure of lift table, the simple and easy installation of being convenient for improves the installation effectiveness, labour saving and time saving.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an inside transmission lead screw structure of lift table, includes little lead screw and hollow lead screw, and it is rotatory that little lead screw drives the cavity lead screw through the integral key shaft that sets up in one end, and the cavity lead screw slides along axial direction, and little lead screw is equipped with screw-nut, and screw-nut has the fixing base through the bolt fastening, passes through the articulated cavity lead screw of bearing in the fixing base, and the cavity lead screw is equipped with cavity screw-nut, and cavity screw-nut external fixation has detachable fixed block group spare.
The hollow screw rod is connected with a screw rod nut sleeved on the small screw rod through a fixed seat, so that when the small screw rod rotates through the driving device, the hollow screw rod moves along the axial direction. The spline at the bottom of the small screw rod drives the hollow screw rod to rotate, and the hollow screw rod nut moves up and down along the hollow screw rod. The fixed block component can fix the innermost-layer table leg, and the lead screw nut can fix the second-layer table leg, so that three-level lifting of the table leg is realized. The fixed block assembly can be detached, so that the installation is simple and easy, the installation efficiency is improved, and time and labor are saved.
Further, the screw rod nut and the fixed block assembly are provided with mounting holes. The mounting hole on the screw rod nut is convenient for the screw rod nut to be fixedly connected with the second layer of table legs through screws, and the mounting hole on the fixed block component is convenient for the hollow screw rod nut to be fixedly connected with the innermost layer of table legs through screws.
Furthermore, the fixed block assembly comprises a left fixed block and a right fixed block, and the left fixed block and the right fixed block are fixed through screws. The left fixing block and the right fixing block are convenient to install and detach.
Further, the hollow screw rod nut is a polygonal nut, the fixing block assembly is provided with a mounting groove, and the mounting groove is matched with the polygonal nut. The hollow lead screw nut is enclosed and clamped by the fixed block assembly.
Further, the outer wall of the hollow screw rod nut is provided with a protruding portion, the inner wall of the mounting groove is provided with a recessed portion, and the protruding portion is matched with the recessed portion. The arrangement of the convex part of the hollow screw nut and the concave part of the mounting groove prevents the fixed block component from sliding with the hollow screw nut.
Further, the other end of the small screw rod is connected with a bearing, a bearing fixing seat and a coupler, the coupler is connected with a driving device, and a coupler screw is fixed on the bearing fixing seat. The driving device drives the small screw rod to rotate through the coupler and the bearing.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the hollow screw rod in the transmission screw rod structure is connected with a screw rod nut sleeved on the small screw rod through a fixing seat, so that when the small screw rod rotates through a driving device, the hollow screw rod moves along the axial direction. The spline at the bottom of the small screw rod drives the hollow screw rod to rotate, and the hollow screw rod nut moves up and down along the hollow screw rod. The fixed block component can fix the innermost-layer table leg, and the lead screw nut can fix the second-layer table leg, so that three-level lifting of the table leg is realized. The fixed block assembly can be detached, so that the installation is simple and easy, the installation efficiency is improved, and time and labor are saved.
The mounting hole on the screw rod nut is convenient for the screw rod nut to be fixedly connected with the second layer of table legs through screws, and the mounting hole on the fixed block component is convenient for the hollow screw rod nut to be fixedly connected with the innermost layer of table legs through screws. The fixed block subassembly comprises left fixed block and right fixed block, is convenient for install and dismantle. The arrangement of the convex part of the hollow screw nut and the concave part of the mounting groove prevents the fixed block component from sliding with the hollow screw nut.
Drawings
The present invention will be further explained with reference to the drawings.
Fig. 1 is a schematic structural view of a transmission screw rod structure in a lifting table.
Fig. 2 is a schematic structural view of fig. 1 with a lead screw nut and a right fixing block removed.
Fig. 3 is a schematic structural view of fig. 2 with a hollow screw rod removed.
Fig. 4 is a schematic structural view of the feed screw nut.
Fig. 5 is a schematic structural view of the left fixing block.
Detailed Description
As shown in fig. 1 and fig. 3, the internal transmission screw structure of the lifting table comprises a small screw 1 and a hollow screw 2, wherein the small screw 1 drives the hollow screw 2 to rotate through a spline shaft 3 arranged at one end, the small screw 1 is provided with a screw nut 4, the screw nut 4 is fixed with a fixing seat 5 through a bolt, and the fixing seat 5 is fixedly connected with the hollow screw 2. The other end of the small screw rod 1 is connected with a bearing 6, a bearing fixing seat 7 and a coupler 8, the coupler 8 is connected with a driving device (not shown in the figure), and the coupler 8 is fixed on the bearing fixing seat 7 through screws.
The hollow lead screw 2 is connected with a lead screw nut 4 arranged on the small lead screw 1 through a fixing seat 5 and a sleeve, a bearing 6 is arranged in the fixing seat 5, the driving device drives the small lead screw 1 to rotate through a coupler 8 and the bearing 6, the hollow lead screw 2 moves along the axial direction through the lead screw nut 4 and the fixing seat 5, and a spline shaft 3 arranged at the bottom of the small lead screw 1 drives the hollow lead screw 2 to rotate.
As shown in fig. 1 and 4, the feed screw nut 4 is provided with a mounting hole 9. The mounting hole 9 on the screw nut 4 facilitates the screw nut 4 to be fixedly connected with a second layer of table legs (not shown in the figure) outside the transmission screw structure through screws, so as to realize the lifting of the second layer of table legs.
As shown in fig. 1 and 2, the hollow screw rod 2 is provided with a hollow screw rod nut 10, a fixed block assembly is fixed outside the hollow screw rod nut 10, and the fixed block assembly is provided with a mounting hole 9. The outer fixing block of the hollow screw nut 10 is fixed with the innermost table leg (not shown in the figure) through the mounting hole 9 and a screw, so that the lifting of the innermost table leg is realized.
As shown in fig. 1 and 2, the fixing block assembly includes a left fixing block 11 and a right fixing block 12, and the left fixing block 11 and the right fixing block 12 are fixed by screws. The left fixing block 11 and the right fixing block 12 are convenient to mount and dismount. The fixed block assembly is provided with a mounting groove 13, and the mounting groove 13 is matched with the hollow screw nut 10. The hollow feed screw nut 10 is enclosed and clamped by the fixed block assembly.
As shown in fig. 2, the outer wall of the hollow feed screw nut 10 is provided with a boss 14. As shown in fig. 5, the inner wall of the mounting groove 13 is provided with a recessed portion 15, and the protruding portion 14 is matched with the recessed portion 15. The provision of the projection 14 of the hollow lead screw nut 10 and the recess 15 of the mounting groove 13 prevents the fixed block assembly from sliding with the hollow lead screw nut 10.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the scope of the present invention.
Claims (6)
1. The utility model provides an inside transmission lead screw structure of lift table which characterized in that: including little lead screw and hollow lead screw, little lead screw drives through the integral key shaft that sets up in one end the cavity lead screw is rotatory, the cavity lead screw slides along axial direction, little lead screw is equipped with screw-nut, screw-nut has the fixing base through the bolt fastening, it is articulated through the bearing in the fixing base the cavity lead screw, the cavity lead screw is equipped with cavity screw-nut, cavity screw-nut external fixation has detachable fixed block subassembly.
2. The internal transmission screw structure of the lifting table as claimed in claim 1, wherein: and the screw rod nut and the fixed block component are provided with mounting holes.
3. The internal transmission screw structure of the lifting table as claimed in claim 1, wherein: the fixed block subassembly includes left fixed block and right fixed block, left side fixed block with right fixed block passes through the screw fixation.
4. The internal transmission screw structure of the lifting table as claimed in claim 1, wherein: the hollow screw rod nut is a polygonal nut, the fixed block component is provided with a mounting groove, and the mounting groove is matched with the polygonal nut.
5. The internal transmission screw structure of the lifting table as claimed in claim 4, wherein: the outer wall of the fixed nut is provided with a protruding portion, the inner wall of the mounting groove is provided with a recessed portion, and the protruding portion is matched with the recessed portion.
6. The internal transmission screw structure of the lifting table as claimed in claim 1, wherein: the other end of the small screw rod is connected with a bearing, a bearing fixing seat and a coupler, the coupler is connected with a driving device, and the coupler is fixed on the bearing fixing seat through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165335.8U CN218791101U (en) | 2022-11-25 | 2022-11-25 | Internal transmission screw rod structure of lifting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223165335.8U CN218791101U (en) | 2022-11-25 | 2022-11-25 | Internal transmission screw rod structure of lifting table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218791101U true CN218791101U (en) | 2023-04-07 |
Family
ID=87262333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223165335.8U Active CN218791101U (en) | 2022-11-25 | 2022-11-25 | Internal transmission screw rod structure of lifting table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218791101U (en) |
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2022
- 2022-11-25 CN CN202223165335.8U patent/CN218791101U/en active Active
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