CN212972137U - Lifting table leg and electric lifting table applied to same - Google Patents
Lifting table leg and electric lifting table applied to same Download PDFInfo
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- CN212972137U CN212972137U CN202021141057.0U CN202021141057U CN212972137U CN 212972137 U CN212972137 U CN 212972137U CN 202021141057 U CN202021141057 U CN 202021141057U CN 212972137 U CN212972137 U CN 212972137U
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- lifting table
- screw rod
- transmission nut
- table leg
- vertical pipe
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Abstract
The utility model discloses a lifting table leg and an electric lifting table using the same, which comprises a driving mechanism, a first vertical pipe, a second vertical pipe sleeved on the first vertical pipe, a lead screw which is rotatably connected in the first vertical pipe and is in transmission connection with the driving mechanism, a first transmission nut connected with the lead screw in a threaded manner, a sliding seat which can limit the rotation of the first transmission nut connected with the first transmission nut, and the outer side wall of the sliding seat is in sliding fit with the inner wall of the first vertical pipe; the screw tube is sleeved on the screw rod, can synchronously rotate with the screw rod, can relatively slide along the axial direction with the screw rod to generate displacement, is in threaded connection with a second transmission nut, is connected with a connecting pipe capable of limiting the rotation of the second transmission nut, and is connected with a second vertical pipe. The lifting table legs and the electric lifting table with the lifting table legs are high in lifting speed and strong in self-locking capacity.
Description
Technical Field
The utility model relates to an electric lift table technical field, what specifically say is a lift table leg and electric lift table of using thereof.
Background
The lifting table leg of the prior art is widely applied to the fields of intelligent office equipment such as an electric lifting table, an electric lifting platform and the like, medical equipment and the like, and generally comprises a driving mechanism and at least two vertical pipes which are nested mutually and can move relatively and stretch, and a linear transmission assembly connected with the driving mechanism in a transmission manner is arranged in the innermost vertical pipe, wherein the linear transmission assembly generally comprises one or two lead screws, and is used for driving the pipe fitting to stretch so as to realize the lifting action of the lifting table leg. The lifting table legs of the three-section vertical pipe in the prior art generally adopt a transmission assembly with two sections of screw rods, although the lifting speed is high and the self-locking capacity is strong, the material cost of the three-section vertical pipe is high, the assembly cost of workers is also high, and when the three-section vertical pipe is unfolded to the highest state, the shaking amount between the vertical pipes is large, so that the stability of the lifting table is poor. The lifting table legs of the two vertical pipes are generally provided with a transmission assembly of a screw rod, and although the material cost is low, the assembly cost of workers is low, and the shaking amount between the vertical pipes is small, the lifting speed is slow, and the self-locking force is relatively poor; under the load-bearing state of the lifting table legs, the screw rod in the linear transmission assembly can rotate under the extrusion of the nut due to the borne gravity, and the self-locking capability is the capability of preventing the screw rod from rotating. Therefore, how to make the lifting table legs of the two vertical pipes have high lifting speed and strong self-locking capability is a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome above prior art's defect, provide a lift table leg that adopts two sections risers, and this lift table leg lift is fast, self-locking ability is strong.
The technical solution of the utility model is to provide a lifting table leg with following structure: it includes a driving mechanism, a first vertical pipe, a second vertical pipe sleeved on the first vertical pipe in a sliding way, and also includes
The screw rod is rotatably connected in the first vertical pipe and is in transmission connection with the driving mechanism, a first transmission nut is in threaded connection with the screw rod, a sliding seat capable of limiting the first transmission nut to rotate is connected onto the first transmission nut, and the outer side wall of the sliding seat is in sliding fit with the inner wall of the first vertical pipe;
the screw tube is sleeved on the screw rod, can synchronously rotate with the screw rod, can relatively slide along the axial direction with the screw rod to generate displacement, is in threaded connection with a second transmission nut, is connected with a connecting pipe capable of limiting the rotation of the second transmission nut, and is connected with a second vertical pipe.
Preferably, the wire tube is sleeved with a bearing, and the bearing is fixedly connected to the bottom of the first transmission nut and used for enabling the wire tube to be rotatably connected with the first transmission nut through the bearing and enabling the wire tube and the first transmission nut to move synchronously along the axial direction.
Preferably, the inner circumferential wall of the wire tube is provided with a plurality of sliding grooves which extend along the axial direction of the wire tube and are distributed along the circumferential direction of the wire tube, the screw rod is coaxially connected with a sliding block, the outer circumferential wall of the sliding block is provided with radial convex blocks which are correspondingly clamped with the sliding grooves on the inner circumferential wall of the wire tube, and the outer side walls of the radial convex blocks are in clearance fit with the inner walls of the sliding grooves.
Preferably, the outer side wall of the sliding seat is provided with a plurality of bosses which are distributed along the circumferential direction of the sliding seat and extend along the sliding direction of the sliding seat, and the outer side wall of each boss is attached to the inner wall of the first vertical pipe.
Preferably, the bottom of the first transmission nut is provided with a cavity, the bearing is arranged in the cavity, the bottom of the cavity is connected with a limiting plate, and the limiting plate is used for axially limiting the bearing in the cavity.
Preferably, the driving mechanism is a driving motor, and a rotating shaft of the driving motor is in transmission connection with the screw rod.
After the structure above the adoption, the utility model discloses lift table leg compares with prior art, has following advantage: the lifting table leg is formed by two vertical pipes, namely a first vertical pipe and a second vertical pipe are adopted, a screw rod and a wire pipe which are arranged in the first vertical pipe drive the first vertical pipe and the second vertical pipe to stretch and retract, specifically, a driving mechanism drives the screw rod to rotate, and simultaneously the screw rod drives the wire pipe to rotate, so that a first transmission nut and a sliding seat move along the axial direction of the screw rod, and a second transmission nut and a connecting pipe move along the axial direction of the wire pipe, and the second vertical pipe stretches and retracts relative to the first vertical pipe; the lifting table legs adopt two sections of vertical pipes and the matching of the screw rod and the wire tube to realize lifting action, and when the driving mechanism stops driving, the screw rod and the wire tube are not easy to rotate under the self-locking of the screw thread matching of the first transmission nut and the second transmission nut respectively when the lifting table legs are in a bearing state, so the lifting table legs are high in lifting speed and strong in self-locking capacity; in other words, compared with the lifting table legs with two vertical pipes and one screw rod in the prior art, the lifting table legs have high lifting speed and strong self-locking capability; compared with three-section vertical pipes and two lead screws, the lifting table leg has the advantages of low material and assembly cost and light weight. Furthermore, the bearing is sleeved on the wire tube, and the bearing is fixedly connected to the bottom of the first transmission nut and used for enabling the wire tube to be rotatably connected with the first transmission nut through the bearing and enabling the wire tube and the first transmission nut to move synchronously along the axial direction. The arrangement makes the rotation of the wire tube and the sliding action of the wire tube relative to the screw rod more stable and compact, and improves the stability of the lifting action of the lifting table legs.
Another technical solution of the utility model is to provide an electric lift table with the following structure: the novel table comprises a table plate, lifting table legs and a base, wherein the bottom of the table plate is connected with a cross beam, the upper ends of the lifting table legs are connected with the cross beam, the lower ends of the lifting table legs are connected with the base, and the lifting table legs adopt the lifting table legs according to any one of the technical schemes.
After the structure more than adopting, the utility model discloses electric lift table compares with prior art, has following advantage: the electric lifting table is strong in self-locking capacity and high in lifting speed, and when the lifting table legs rise to the highest point, the vertical pipes of the lifting table legs are not prone to shaking, and the stability is high.
Drawings
Fig. 1 is a schematic structural view of the elevating table leg of the present invention.
Fig. 2 is a schematic sectional view of the elevating table leg of the present invention.
Fig. 3 is a schematic structural view of the electric lifting table of the present invention.
As shown in the figure:
1. the device comprises a first vertical pipe, a second vertical pipe, a driving mechanism, a screw rod, a driving mechanism, a screw rod, a driving nut, a sliding seat 402, a concave cavity 403, a bearing 404, a limiting plate 405, a sliding block 406, a radial convex block 5, a wire pipe 500, a second driving nut 501, a connecting pipe 502, a sliding chute 6, a connecting plate 7, a base 8 and a cross beam.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
See fig. 1-2;
the utility model relates to a lifting table leg, it includes actuating mechanism 3, first riser 1 and slip the second riser 2 that the cover is established on first riser 1, actuating mechanism 3 generally indicate manual drive or electric drive, the utility model discloses an actuating mechanism 3 adopts driving motor, and the pivot of this driving motor is connected with the lead screw transmission, connects a worm in the pivot of this motor, and installs a worm wheel that is connected with the worm transmission on the lead screw, utilizes the transmission of worm and worm wheel to make driving motor drive the lead screw and rotate; the lifting table leg further comprises a screw rod 4 which is rotatably connected in the first vertical pipe 1 and is in transmission connection with a driving mechanism 3, an external thread extending along the length direction of the screw rod 4 is arranged on the screw rod 4, a first transmission nut 400 is in threaded connection with the screw rod 4, a sliding seat 401 capable of limiting the first transmission nut 400 to rotate is connected to the first transmission nut 400, and the outer side wall of the sliding seat 401 is in sliding fit with the inner wall of the first vertical pipe 1; the screw rod 4 is driven by the driving mechanism 3 to rotate, and the first transmission nut 400 and the sliding seat 401 move along the length direction of the inner wall of the first vertical pipe 1. The screw tube 5 is sleeved on the screw rod 4, and external threads extending along the length direction of the screw tube 5 are arranged on the screw tube 5; the wire tube 5 can rotate synchronously with the screw rod 4, the wire tube 5 and the screw rod 4 can relatively slide along the axial direction to generate displacement, a second transmission nut 500 is connected to the wire tube 5 in a threaded manner, a connecting pipe 501 capable of limiting the second transmission nut 500 to rotate is connected to the second transmission nut 500, and the connecting pipe 501 is connected with the second vertical pipe 2 through a connecting plate 6. The wire tube 5 can rotate synchronously with the screw rod 4, and the wire tube 5 and the screw rod 4 can relatively slide along the axial direction to generate displacement, which means that a plurality of sliding grooves 502 which extend along the axial direction and are distributed along the circumferential direction are arranged on the inner circumferential wall of the wire tube 5, a sliding block 405 is coaxially connected on the screw rod 4, a radial convex block 406 which is correspondingly clamped with the sliding grooves 502 on the inner circumferential wall of the wire tube 5 is arranged on the outer circumferential wall of the sliding block 405, and the outer side wall of the radial convex block 406 is in clearance fit with the inner wall of the sliding grooves 502. The radial convex block of the upper sliding block of the screw rod is matched with the sliding groove on the inner wall of the wire tube in a clamping manner, so that the wire tube and the screw rod synchronously rotate, and the wire tube and the screw rod can relatively slide along the axial direction to generate displacement. The lifting table leg is formed by two vertical pipes, namely a first vertical pipe and a second vertical pipe are adopted, a screw rod and a wire pipe which are arranged in the first vertical pipe drive the first vertical pipe and the second vertical pipe to stretch and retract, specifically, a driving mechanism drives the screw rod to rotate, and simultaneously the screw rod drives the wire pipe to rotate, so that a first transmission nut and a sliding seat move along the axial direction of the screw rod, and a second transmission nut and a connecting pipe move along the axial direction of the wire pipe, and the second vertical pipe stretches and retracts relative to the first vertical pipe; the lifting table legs adopt two sections of vertical pipes and the matching of the screw rod and the wire tube to realize lifting action, and when the driving mechanism stops driving, the screw rod and the wire tube are not easy to rotate under the self-locking of the screw thread matching of the first transmission nut and the second transmission nut respectively when the lifting table legs are in a bearing state, so the lifting table legs are high in lifting speed and strong in self-locking capacity; in other words, compared with the lifting table legs with two vertical pipes and one screw rod in the prior art, the lifting table legs have high lifting speed and strong self-locking capability; compared with three-section vertical pipes and two lead screws, the lifting table leg has the advantages of low material and assembly cost and light weight.
Referring again to fig. 2, as an embodiment of the present invention; the wire tube 5 is sleeved with a bearing 403, the bearing 403 is fixedly connected to the bottom of the first transmission nut 400, and the bearing 403 is used for enabling the wire tube 5 to be rotatably connected with the first transmission nut 400 through the bearing 403 and enabling the wire tube 5 and the first transmission nut 400 to move synchronously along the axial direction. The bottom of the first transmission nut 400 is provided with a cavity 402, the bearing 403 is arranged in the cavity 402, the bottom of the cavity 402 is connected with a limiting plate 404, and the limiting plate 404 is used for axially limiting the bearing 403 in the cavity 402. The limiting plate 404 is connected to the bottom of the cavity 402 by screws, so that the bottom of the cavity is closed, and the bearing 403 is limited in the cavity 402. The arrangement makes the rotation of the wire tube and the sliding action of the wire tube relative to the screw rod more stable and compact, and improves the stability of the lifting action of the lifting table legs.
Referring to fig. 3, the utility model relates to an electric lift table, it includes table, lift table leg and base 7, the bottom of table is connected with crossbeam 8, the upper end and the crossbeam 8 of lift table leg are connected, and the lower extreme and the base 7 of lift table leg are connected, the lift table leg adopt the lift table leg as above-mentioned any embodiment technical scheme. The electric lifting table is strong in self-locking capacity and high in lifting speed, and when the lifting table legs rise to the highest point, the vertical pipes of the lifting table legs are not prone to shaking, and the stability is high.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a lifting table leg, it includes actuating mechanism, first riser and slip the cover and establish the second riser on first riser, its characterized in that: it also comprises
The screw rod is rotatably connected in the first vertical pipe and is in transmission connection with the driving mechanism, a first transmission nut is in threaded connection with the screw rod, a sliding seat capable of limiting the first transmission nut to rotate is connected onto the first transmission nut, and the outer side wall of the sliding seat is in sliding fit with the inner wall of the first vertical pipe;
the screw tube is sleeved on the screw rod, can synchronously rotate with the screw rod, can relatively slide along the axial direction with the screw rod to generate displacement, is in threaded connection with a second transmission nut, is connected with a connecting pipe capable of limiting the rotation of the second transmission nut, and is connected with a second vertical pipe.
2. A lifting table leg as claimed in claim 1, wherein: the bearing is fixedly connected to the bottom of the first transmission nut and used for enabling the wire tube to be rotatably connected with the first transmission nut through the bearing and enabling the wire tube and the first transmission nut to move synchronously along the axial direction.
3. A lifting table leg as claimed in claim 1, wherein: the inner circumference wall of the wire tube is provided with a plurality of sliding grooves which extend along the axial direction and are distributed along the circumferential direction, the screw rod is coaxially connected with a sliding block, the outer circumference wall of the sliding block is provided with a radial convex block which is correspondingly clamped with the sliding grooves on the inner circumference wall of the wire tube, and the outer side wall of the radial convex block is in clearance fit with the inner wall of the sliding groove.
4. A lifting table leg as claimed in claim 1, wherein: the outer side wall of the sliding seat is provided with a plurality of bosses which are distributed along the circumferential direction of the sliding seat and extend along the sliding direction of the sliding seat, and the outer side wall of each boss is attached to the inner wall of the corresponding first vertical pipe.
5. A lifting table leg as claimed in claim 2, wherein: the bottom of first drive nut is equipped with a cavity, the bearing setting in the cavity, a limiting plate is connected to the bottom of cavity, the limiting plate be used for with bearing axial spacing in the cavity.
6. A lifting table leg as claimed in claim 1, wherein: the driving mechanism is a driving motor, and a rotating shaft of the driving motor is in transmission connection with the screw rod.
7. The utility model provides an electric lift table, it includes table, lift table leg and base, the bottom of table is connected with the crossbeam, the upper end and the crossbeam of lift table leg are connected, and the lower extreme and the base of lift table leg are connected its characterized in that: the lifting table leg is as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141057.0U CN212972137U (en) | 2020-06-18 | 2020-06-18 | Lifting table leg and electric lifting table applied to same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021141057.0U CN212972137U (en) | 2020-06-18 | 2020-06-18 | Lifting table leg and electric lifting table applied to same |
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| Publication Number | Publication Date |
|---|---|
| CN212972137U true CN212972137U (en) | 2021-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021141057.0U Active CN212972137U (en) | 2020-06-18 | 2020-06-18 | Lifting table leg and electric lifting table applied to same |
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| Country | Link |
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| CN (1) | CN212972137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114468533A (en) * | 2021-12-24 | 2022-05-13 | 浙江乐歌智能驱动科技有限公司 | Feed screw nut mechanism |
-
2020
- 2020-06-18 CN CN202021141057.0U patent/CN212972137U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114468533A (en) * | 2021-12-24 | 2022-05-13 | 浙江乐歌智能驱动科技有限公司 | Feed screw nut mechanism |
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