CN213428927U - Single-motor electric lifting table - Google Patents
Single-motor electric lifting table Download PDFInfo
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- CN213428927U CN213428927U CN202021814208.4U CN202021814208U CN213428927U CN 213428927 U CN213428927 U CN 213428927U CN 202021814208 U CN202021814208 U CN 202021814208U CN 213428927 U CN213428927 U CN 213428927U
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Abstract
本实用新型公开了一种单电机电动升降桌，它包括桌板、桌架和驱动电机；三个升降立柱：第一升降立柱、第二升降立柱和第三升降立柱，每个升降立柱内设有丝杠升降机构；第一传动杆组件和第二传动杆组件，第一传动杆组件的第一端与第一升降立柱的丝杠升降机构传动连接，第一传动杆组件的第二端连接有第一齿轮；第二传动杆组件的第一端与第三升降立柱的丝杠升降机构传动连接，第二传动杆组件的第二端连接有第二齿轮，第一齿轮和第二齿轮分别与第二升降立柱内丝杠升降机构的驱动齿轮传动啮合。该单电机电动升降桌只需一个电机即可驱动三个升降立柱同时升降，且传动稳定、结构简单，生产成本低。
The utility model discloses a single-motor electric lifting table, which comprises a table board, a table frame and a driving motor; three lifting columns: a first lifting column, a second lifting column and a third lifting column, each lifting column is provided with an inner There is a screw lifting mechanism; a first transmission rod assembly and a second transmission rod assembly, the first end of the first transmission rod assembly is drivingly connected with the screw lifting mechanism of the first lifting column, and the second end of the first transmission rod assembly is connected There is a first gear; the first end of the second transmission rod assembly is drivingly connected with the lead screw lifting mechanism of the third lifting column, the second end of the second transmission rod assembly is connected with a second gear, the first gear and the second gear are respectively It is engaged with the driving gear of the lead screw lifting mechanism in the second lifting column. The single-motor electric lift table only needs one motor to drive three lift columns to lift and lower at the same time, and has stable transmission, simple structure and low production cost.
Description
Technical Field
The utility model relates to an office furniture technical field specifically says a single motor electric lift table.
Background
The lifting table is also called a learning table or a lifting office table, and can meet the healthy office requirements of people with different heights for realizing standing and sitting alternative office by utilizing the lifting characteristic; at present, more and more office workers select a lifting work table to work; the lifting table in the prior art generally comprises an electric lifting table and a manual lifting table, wherein the electric lifting table is driven by a motor to lift, and the manual lifting table is driven by a crank to lift. The electric lifting table can be divided into a single-motor electric lifting table and a double-motor electric lifting table, and the single-motor electric lifting table adopts a motor to simultaneously drive two lifting upright posts to lift; its structure of single motor electric lift table generally includes two bases, two lift stands, the table, table frame and driving motor, the lower extreme of two lift stands is connected with two bases respectively, and the upper end and the table frame of two lift stands are connected, are equipped with lead screw elevating system in every lift stand, the table frame on install driving motor and driving motor's controller, the top and the table of table frame are connected, and are equipped with a transfer line on the length direction of table frame, and this transfer line is connected with the driving motor transmission, and the both ends of transfer line are connected with the lead screw elevating system transmission in two lift stands respectively, driving motor drive transfer line rotates to the lead screw elevating system who drives in two lift stands rotates, realizes that two lift stands go up and down. The single-motor electric lifting table with the structure has the advantages that the using area of the table plate is limited, the size of the table plate is enlarged or lengthened for expanding the using area of the table plate, and the lifting upright post is additionally arranged at the bottom of the table plate for ensuring the stability of the lifting table, namely the lifting table is provided with three lifting upright posts; at present, a driving motor can not drive three lifting columns to lift simultaneously, so that the added lifting columns are provided with driving motors, namely, the lifting tables of the three lifting columns are provided with two driving motors, and the production cost of the lifting tables is undoubtedly increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, overcome the defect of above prior art, provide one kind only need a motor can drive three lift stand and go up and down simultaneously, and the transmission is stable, simple structure, single motor electric lift table low in production cost.
The technical solution of the utility model is to provide a single motor electric lift table with following structure: it comprises
A table plate;
the table frame is connected to the bottom of the table plate;
three lifting columns: the lifting device comprises a first lifting stand column, a second lifting stand column and a third lifting stand column, wherein a screw rod lifting mechanism is arranged in each lifting stand column and used for driving the lifting stand columns to lift, and the upper ends of the three lifting stand columns are connected with a table frame;
two dwang subassemblies: the first end of the first transmission rod assembly is in transmission connection with a lead screw lifting mechanism of the first lifting upright post, and the second end of the first transmission rod assembly is connected with a first gear; the first end of the second transmission rod component is in transmission connection with a lead screw lifting mechanism of the third lifting upright post, the second end of the second transmission rod component is connected with a second gear, and the first gear and the second gear are respectively in transmission meshing with a driving gear of the lead screw lifting mechanism in the second lifting upright post;
and the driving motor is in transmission connection with the first transmission rod assembly or the second transmission rod assembly and is used for driving the first transmission rod assembly or the second transmission rod assembly to rotate.
Preferably, the top of the second lifting upright is connected with a gear box, the gear box is rotatably connected with a first rotating shaft and a second rotating shaft, the first rotating shaft is coaxially connected with the first transmission rod assembly, and the second rotating shaft is coaxially connected with the second transmission rod assembly; the first gear is connected to the first rotating shaft, the second gear is connected to the second rotating shaft, and the first gear and the second gear are both arranged in the gear box.
Preferably, a supporting plate is fixedly connected to the top of the second lifting upright, the gear box is connected to the supporting plate, a locking frame is wrapped on the outer side of the gear box, and the locking frame is connected with the supporting plate and used for locking the gear box to the supporting plate.
Preferably, the gear box is provided with two mounting holes, the first rotating shaft and the second rotating shaft are rotatably connected in the two mounting holes through channel bearings, and the axes of the two mounting holes form an included angle of 120 degrees.
Preferably, the table frame comprises a first cross beam and a second cross beam, the first cross beam is connected with the first lifting upright post and the second lifting upright post, the second cross beam is connected with the second lifting upright post and the third lifting upright post, and the first cross beam and the second cross beam are arranged at an included angle of 120 degrees.
Preferably, the table frame further comprises three supporting plates respectively connected to the three lifting columns.
Preferably, two ends of the first cross beam and two ends of the second cross beam are respectively and fixedly connected with the three lifting columns through connecting blocks.
Preferably, the bottom wall of the first cross beam is connected with a first shielding plate, the bottom wall of the second cross beam is connected with a second shielding plate, the first shielding plate and the second shielding plate are respectively positioned below the first transmission rod assembly and the second transmission rod assembly, and the inner side edges of the first shielding plate and the second shielding plate are both bent upwards to form a baffle.
Preferably, the third lifting upright is connected with a motor support, the driving motor is connected with the motor support, and a rotating shaft of the driving motor is in transmission connection with the second transmission rod assembly.
Preferably, the second lifting upright post is sequentially provided with a lower travel switch and an upper travel switch from bottom to top along the height direction of the second lifting upright post, and the lower travel switch and the upper travel switch are both electrically connected with a control circuit of the driving motor controller through a lead; when the second lifting upright column descends to the lowest position, the lower travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the lower travel switch, and the second lifting upright column stops descending; when the second lifting upright column rises to the highest position, the upper travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the upper travel switch, and the second lifting upright column stops rising.
After the structure more than adopting, the utility model relates to a single motor electric lift table compares with prior art, has following advantage: the single-motor electric lifting table integrally adopts a driving motor to drive three lifting stand columns to lift simultaneously, so that the height of the table plate is adjusted, specifically, a second end of a first transmission rod assembly is connected with a first gear, a second end of a second transmission rod assembly is connected with a second gear, and the first gear and the second gear are respectively in transmission meshing with a driving gear of a screw rod lifting mechanism in the second lifting stand column; namely, a gear box is arranged at the top of the second lifting upright column positioned in the middle, a first rotating shaft and a second rotating shaft are rotatably connected to the gear box, a first gear and a second gear are respectively arranged on the first rotating shaft and the second rotating shaft, the second end of the first transmission rod assembly is coaxially connected with the first rotating shaft, and the second end of the second transmission rod assembly is coaxially connected with the second rotating shaft; the transmission of the drive gear of the lead screw lifting mechanism in the first transmission rod assembly, the second transmission rod assembly, the first gear, the second gear and the second lifting upright post realizes that one drive motor drives three lifting upright posts to lift simultaneously, and the transmission is stable, the structure is simple, the production cost is low, and the assembly is convenient and simple.
Drawings
Fig. 1 is a schematic view of the front structure of the single-motor electric lifting table of the present invention.
Fig. 2 is a schematic view of the back structure of the single motor electric lifting table of the present invention.
Fig. 3 is a schematic view of a partial structure of the single-motor electric lifting table of the present invention.
As shown in the figure:
1. the table frame comprises a table frame body, 100, a first cross beam, 101, a second cross beam, 102, a supporting plate, 103, a first shielding plate, 104, a second shielding plate, 105, a baffle plate, 2, a first lifting upright post, 200, a second lifting upright post, 201, a third lifting upright post, 202, a driving gear, 3, a base, 4, a first transmission rod assembly, 400, a second transmission rod assembly, 5, a driving motor, 500, a motor support, 6, a supporting plate, 600, a connecting rod, 601, a gear box, 602, an installation hole, 603, a first rotating shaft, 604, a second rotating shaft, 605, a first gear, 606, a second gear, 7, a connecting block, 8 and a locking frame.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, the utility model relates to a single motor lifting table, which comprises a table plate; table frame 1 connects in the table bottom, table frame 1 including connect first crossbeam 100 of first lift stand 2 and second lift stand 200 and connect second lift stand 200 and third lift stand 201's second crossbeam 101, first crossbeam 100 be 120 degrees contained angles with second crossbeam 101 and set up. The table frame 1 further comprises three support plates 102 connected to the three lifting columns respectively. Two ends of the first cross beam 100 and the second cross beam 101 are respectively and fixedly connected with the three lifting columns through connecting blocks 7; three lifting columns: the table frame comprises a first lifting upright 2, a second lifting upright 200 and a third lifting upright 201, wherein a screw rod lifting mechanism is arranged in each lifting upright and used for driving the lifting upright to lift, the upper ends of the three lifting uprights are connected with the table frame 1, and the bottoms of the three lifting uprights are connected with a base 3; the screw rod lifting mechanism is also called as a screw rod nut pair or a linear push rod mechanism; the screw rod lifting mechanism comprises a screw rod, and the screw rod is rotatably connected to the upper end of the inner tube through a bearing; the outer side wall of the base is connected with a supporting pipe, and the lower end of the supporting pipe is connected with the lower end of the outer pipe; the lead screw rotates to enable the base and the supporting pipe to move along the length direction of the lead screw, so that the outer pipe slides relative to the inner pipe, and the lifting upright post is lifted. The lifting upright post is a product which is a mature technology in the prior art, and can be referred to as the lifting upright post disclosed by the publication number CN207659000U, or the lifting table leg disclosed by the publication number CN 207626789U; therefore, the utility model does not explain the structure of the lifting upright column in detail.
The utility model relates to a single motor lift table still includes two rotating rod subassemblies: the first end of the first transmission rod assembly 4 is in transmission connection with a lead screw lifting mechanism of the first lifting upright post 2, and the second end of the first transmission rod assembly 4 is connected with a first gear 605; the first end of the second transmission rod assembly 400 is in transmission connection with the screw rod lifting mechanism of the third lifting upright column 201, the second end of the second transmission rod assembly 400 is connected with a second gear 606, and the first gear 605 and the second gear 606 are respectively in transmission meshing with the driving gear 202 of the screw rod lifting mechanism in the second lifting upright column 200; the driving motor 5 and a controller for controlling the action of the driving motor 5 are in transmission connection with the first transmission rod assembly 4 or the second transmission rod assembly 400 and are used for driving the first transmission rod assembly 4 or the second transmission rod assembly 400 to rotate. Specifically, the third lifting upright 201 is connected with a motor bracket 500, the driving motor 5 is connected to the motor bracket 500, and the rotating shaft of the driving motor 5 is in transmission connection with the second transmission rod assembly 400. The driving motor 5 drives the second transmission rod assembly 400 to rotate, so as to drive the second gear 606 to rotate, meanwhile, the second gear 606 drives the driving gear 202 of the screw rod lifting mechanism in the second lifting upright post 200 to rotate, the driving gear 202 drives the first gear 605 to rotate, so that the first transmission rod assembly 4 synchronously rotates, and therefore, the three lifting upright posts are lifted simultaneously; a single motor lifting table integrally adopts a driving motor 5 to drive three lifting upright posts to lift simultaneously, so as to realize the height adjustment of the table plate, specifically, the second end of a first transmission rod component 4 is connected with a first gear 605, the second end of a second transmission rod component 400 is connected with a second gear 606, and the first gear 605 and the second gear 606 are respectively in transmission meshing with a driving gear 202 of a screw lifting mechanism in a second lifting upright post 200; through the transmission of the first transmission rod component, the second transmission rod component, the first gear, the second gear and the driving gear of the screw rod lifting mechanism in the second lifting upright post, the driving motor drives the three lifting upright posts to lift simultaneously.
Referring to fig. 1 and fig. 3 again, as an embodiment of the present invention, a gear box 601 is connected to the top of the second lifting column 200, a first rotating shaft 603 and a second rotating shaft 604 are rotatably connected to the gear box 601, the first rotating shaft 603 is coaxially connected to the first transmission rod assembly 4, and the second rotating shaft 604 is coaxially connected to the second transmission rod assembly 400; the first gear 605 is connected to the first rotating shaft 603, the second gear 606 is connected to the second rotating shaft 604, and both the first gear 605 and the second gear 606 are disposed in the gear box 601. The gear box 601 is connected as follows, a supporting plate 6 is fixedly connected to the top of the second lifting upright column 200, the gear box 601 is connected to the supporting plate 6, a locking frame 8 is wrapped on the outer side of the gear box 601, and the locking frame 8 is connected with the supporting plate 6 and used for locking the gear box 601 on the supporting plate 6. Two mounting holes 602 are formed in the gear box 601, the first rotating shaft 603 and the second rotating shaft 604 are rotatably connected in the two mounting holes 602 through channel bearings, and the axes of the two mounting holes 602 form an included angle of 120 degrees. Set up like this, make simple to operate, when transmission assembly installs, only need to pass through the backup pad with the gear box and connect at the top of second lift stand, and make first gear and second gear respectively with the drive gear meshing of lead screw elevating system in the second lift stand, then make first transmission shaft and first transmission rod subassembly be connected, the second transmission shaft is connected with second transmission rod subassembly and can accomplish the equipment, its modular installation sets up the installation of having accelerated transmission rod subassembly.
Two connecting rods 600 are connected to the supporting plate 6, the two connecting rods 600 are respectively connected with the first cross beam 100 and the second cross beam 101, and a space for connecting the gear box 601 is formed between the two connecting rods 600.
Referring to fig. 1 again, as an embodiment of the present invention, a first shielding plate 103 is connected to the bottom wall of the first beam 100, a second shielding plate 104 is connected to the bottom wall of the second beam 101, the first shielding plate 103 and the second shielding plate 104 are respectively located below the first transmission rod assembly 4 and the second transmission rod assembly 400, and the inner edges of the first shielding plate 103 and the second shielding plate 104 are both bent upward to form a baffle 105. This setting of first sunshade 103 and second sunshade 104 plays the effect of sheltering from to two transfer line subassemblies, and the setting of first crossbeam 100, second crossbeam 101 and first sunshade 103 and second sunshade 104 not only makes the structure of table frame 1 more stable moreover, has practiced thrift moreover and has set up the crossbeam at the lift stand opposite side, and its table frame simple structure, firm, and light in weight, low in production cost.
As an embodiment of the present invention, the second lifting column 200 is sequentially provided with a lower travel switch and an upper travel switch along the height direction thereof from bottom to top, and both the lower travel switch and the upper travel switch are electrically connected to the control circuit of the driving motor controller through a wire; when the second lifting upright column descends to the lowest position, the lower travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the lower travel switch, and the second lifting upright column stops descending; when the second lifting upright column rises to the highest position, the upper travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the upper travel switch, and the second lifting upright column stops rising. Therefore, the single-motor electric lifting table does not need to be controlled to lift by software and programs, the lifting of the table legs can be realized by controlling the on-off of a control circuit of a driver, and the minimum height and the maximum height of the lifting upright post can be limited by the arranged lower travel switch and the upper travel switch, or the limit travel of the lifting upright post; prevent that the lift stand leads to impaired because of the lead screw rotation out of control when rising to extreme position. The cost of the lower travel switch and the upper travel switch is far lower than the cost of the control hardware and software arranged on the single-motor electric lifting table, and the control defects of software program errors or program self are avoided, so that the lifting operation of the single-motor electric lifting table is not easy to make mistakes and has good stability.
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 (10)
1. The utility model provides a single motor electric lift table which characterized in that: it comprises
A table plate;
the table frame is connected to the bottom of the table plate;
three lifting columns: the lifting device comprises a first lifting stand column, a second lifting stand column and a third lifting stand column, wherein a screw rod lifting mechanism is arranged in each lifting stand column and used for driving the lifting stand columns to lift, and the upper ends of the three lifting stand columns are connected with a table frame;
two dwang subassemblies: the first end of the first transmission rod assembly is in transmission connection with a lead screw lifting mechanism of the first lifting upright post, and the second end of the first transmission rod assembly is connected with a first gear; the first end of the second transmission rod component is in transmission connection with a lead screw lifting mechanism of the third lifting upright post, the second end of the second transmission rod component is connected with a second gear, and the first gear and the second gear are respectively in transmission meshing with a driving gear of the lead screw lifting mechanism in the second lifting upright post;
and the driving motor is in transmission connection with the first transmission rod assembly or the second transmission rod assembly and is used for driving the first transmission rod assembly or the second transmission rod assembly to rotate.
2. The single motor powered lift table of claim 1, wherein: the top of the second lifting upright post is connected with a gear box, the gear box is rotatably connected with a first rotating shaft and a second rotating shaft, the first rotating shaft is coaxially connected with the first transmission rod assembly, and the second rotating shaft is coaxially connected with the second transmission rod assembly; the first gear is connected to the first rotating shaft, the second gear is connected to the second rotating shaft, and the first gear and the second gear are both arranged in the gear box.
3. The single motor powered lift table of claim 2, wherein: the top of the second lifting stand column is fixedly connected with a supporting plate, the gear box is connected to the supporting plate, a locking frame is wrapped outside the gear box and connected with the supporting plate, and the gear box is locked to the supporting plate.
4. The single motor powered lift table of claim 3, wherein: two mounting holes are formed in the gear box, the first rotating shaft and the second rotating shaft are rotatably connected in the two mounting holes through channel bearings, and the axes of the two mounting holes form an included angle of 120 degrees.
5. The single motor powered lift table of claim 1, wherein: the table frame comprises a first cross beam connected with a first lifting stand column and a second cross beam connected with a second lifting stand column and a third lifting stand column, and the first cross beam and the second cross beam are arranged at an included angle of 120 degrees.
6. The single motor powered lift table of claim 5, wherein: the table frame also comprises three supporting plates which are respectively connected to the three lifting upright columns.
7. The single motor powered lift table of claim 5, wherein: and the two ends of the first cross beam and the second cross beam are respectively and fixedly connected with the three lifting upright posts through connecting blocks.
8. The single motor powered lift table of claim 5, wherein: the utility model discloses a baffle, including first crossbeam, second crossbeam, first sunshade, first transmission pole subassembly, second transmission pole subassembly, be connected with first sunshade on the diapire of first crossbeam, be connected with the second sunshade on the diapire of second crossbeam, first sunshade and second sunshade be located the below of first transmission pole subassembly and second transmission pole subassembly respectively, and the inboard edge of first sunshade and second sunshade all upwards bends and form the baffle.
9. The single motor powered lift table of claim 1, wherein: the third lifting upright post is connected with a motor support, the driving motor is connected with the motor support, and a rotating shaft of the driving motor is in transmission connection with the second transmission rod assembly.
10. The single motor electric lift table of any one of claims 1 to 9, wherein: the second lifting upright post is sequentially provided with a lower travel switch and an upper travel switch from bottom to top along the height direction of the second lifting upright post, and the lower travel switch and the upper travel switch are both electrically connected with a control circuit of a driving motor controller through leads; when the second lifting upright column descends to the lowest position, the lower travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the lower travel switch, and the second lifting upright column stops descending; when the second lifting upright column rises to the highest position, the upper travel switch is triggered, the control circuit of the driver is controlled to be disconnected by the upper travel switch, and the second lifting upright column stops rising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814208.4U CN213428927U (en) | 2020-08-26 | 2020-08-26 | Single-motor electric lifting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814208.4U CN213428927U (en) | 2020-08-26 | 2020-08-26 | Single-motor electric lifting table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213428927U true CN213428927U (en) | 2021-06-15 |
Family
ID=76315783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021814208.4U Active CN213428927U (en) | 2020-08-26 | 2020-08-26 | Single-motor electric lifting table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213428927U (en) |
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2020
- 2020-08-26 CN CN202021814208.4U patent/CN213428927U/en active Active
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