CN218921991U - Single motor electric lifting table - Google Patents
Single motor electric lifting table Download PDFInfo
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- CN218921991U CN218921991U CN202223449399.0U CN202223449399U CN218921991U CN 218921991 U CN218921991 U CN 218921991U CN 202223449399 U CN202223449399 U CN 202223449399U CN 218921991 U CN218921991 U CN 218921991U
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- gear box
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The utility model discloses a single-motor electric lifting table, which comprises a table plate and a base; the lifting column comprises a column body, a gear box and a screw rod lifting mechanism arranged in the column body, the top of each column body is connected with a supporting seat, and the gear box is connected on the supporting seat and is in transmission connection with the screw rod lifting mechanism; the outer side wall of the gear box is provided with a first positioning surface; a drive motor and a transmission rod; the driving motor is provided with a second positioning surface matched and attached with the first positioning surface; the motor mounting plate is connected to the supporting seat of the first lifting upright post, a connecting piece connected with the driving motor is connected to the motor mounting plate, and after the driving motor is mounted, the second positioning surface of the driving motor is tightly attached to the first positioning surface of the gear box. The single-motor electric lifting table enables the driving motor to be installed simply, conveniently and rapidly, enables the positioning between the driving motor and the gear box to be accurate, and can ensure concentricity of the axis of the transmission rod and the axis of the input end of the gear box.
Description
Technical Field
The utility model relates to the technical field of electric lifting tables, in particular to a single-motor electric lifting table.
Background
The lifting desk is also called a learning desk or a lifting office desk, and can meet the health office requirements of standing and sitting alternate office by using lifting characteristics of people with different heights. At present, more and more office workers select lifting tables to conduct office work. The lifting table 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 adopts a lifting table driven by a single motor, and is also called a single motor lifting table or a single motor electric lifting table.
The utility model provides a single motor electric lift table of prior art, like the lift table of the applicant's prior application that the publication number is CN215076240U, name single motor lift table, its structure includes table, base, crossbeam, driving motor and two lift stands, and the upper end of two lift stands is connected with the both ends of crossbeam respectively, and the lower extreme of two lift stands is connected with two bases respectively, and the table is connected at the top of crossbeam; a screw rod lifting mechanism, namely a screw rod nut pair, is connected in each of the two lifting upright posts and is used for driving the inner pipe and the outer pipe of the lifting upright posts to stretch; the upper end of each lifting upright post is connected with a supporting plate connected with the bottom of the cross beam, and a gear box is fixedly connected to the supporting plate and is in transmission connection with a screw rod lifting mechanism in the lifting upright post; the driving motor is arranged between the two lifting upright posts and is positioned at a position close to one of the lifting upright posts, and the driving motor is connected with the lifting upright posts through a motor mounting plate; specifically, one end of the motor mounting plate is fixedly connected with a supporting plate at the top of the lifting upright post through screws, and the other end of the motor mounting plate is connected with the driving motor through a plurality of screws; the driving end of the driving motor is in transmission connection with a transmission rod, two ends of the transmission rod are respectively in transmission connection with gear boxes at the tops of the two lifting upright posts, and the driving motor acts to drive the transmission rod to rotate, so that a screw rod lifting mechanism in the two lifting upright posts rotates, and the two lifting upright posts are lifted. The single motor lifting table of the prior art has some defects in actual assembly or use: firstly, the installation of a driving motor is very troublesome, the driving motor and a motor mounting plate are required to be fixed through a plurality of screws, and concentricity between the axis of a transmission rod at the driving end of the driving motor and the axis of the input end of a gear box is required to be ensured, but in fact, due to processing errors and installation errors of the motor mounting plate and connection errors between the plurality of screws for connecting the driving motor and the motor mounting plate, the motor and the gear box are difficult to be positioned accurately, so that concentricity between the axis of the transmission rod and the axis of the input end of the gear box is difficult to be ensured, abnormal transmission noise is caused, and the service life of a transmission mechanism is influenced after long-time use; furthermore, the driving motor is fixed with the motor mounting plate through a plurality of screws, so that the mounting time is long, and the mounting efficiency is low; secondly, when driving motor drives gear transmission in the gear box, the noise that produces between the gear can be transmitted to lift stand or table through backup pad or motor mounting panel fast to arouse resonance or noise, consequently user experience feels relatively poor.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides the single-motor electric lifting table which enables the driving motor to be installed simply, conveniently and quickly, enables the positioning between the driving motor and the gear box to be accurate and can ensure the concentricity of the axis of the transmission rod and the axis of the input end of the gear box.
The technical scheme of the utility model is that a single-motor electric lifting table with the following structure is provided: it comprises
A table plate and a base;
two lifting columns: the lifting device comprises a first lifting upright post and a second lifting upright post, wherein each lifting upright post comprises an upright post body, a gear box and a screw rod lifting mechanism arranged in the upright post body, the top of each upright post body is connected with a supporting seat, and the gear box is connected to the supporting seat and is in transmission connection with the screw rod lifting mechanism; the outer side wall of the gear box is provided with a first positioning surface;
the driving motor is in transmission connection with the transmission rod, and two ends of the transmission rod are respectively in transmission connection with the input ends of the gear boxes on the two lifting upright posts; the driving motor is provided with a second positioning surface matched and attached with the first positioning surface;
the motor mounting plate is connected to the supporting seat of the first lifting upright post, a connecting piece connected with the driving motor is connected to the motor mounting plate, and after the connecting piece is connected with the driving motor, the second positioning surface of the driving motor is tightly attached to the first positioning surface of the gear box.
After the structure is adopted, compared with the prior art, the single-motor electric lifting table has the following advantages: when the single-motor electric lifting table is used for installing a driving motor, a second positioning surface of the driving motor is tightly attached to a first positioning surface of a gear box, namely, the driving motor and the gear box are gapless, and the driving motor is connected with a motor mounting plate through a connecting piece; because the driving motor and the gear box are matched and offset through the first positioning surface and the second positioning surface, no gap exists between the driving motor and the gear box, positioning between the driving motor and the gear box is simple and convenient, concentricity of the axis of the transmission rod and the axis of the input end of the gear box can be easily ensured, transmission abnormal sound of the transmission rod is avoided, and the service life of the electric lifting table is long. The connecting piece on the motor mounting plate is connected with the driving motor, so that the driving motor can be limited to move circumferentially or transversely, and the driving motor is firmly connected, therefore, the driving motor is mounted, and the operation is very simple and convenient.
Preferably, one side of the motor mounting plate, which is close to the driving motor, is connected with an upward extending connecting block, the connecting block is connected with a connecting piece, and the driving motor is provided with a connecting hole matched and connected with the connecting piece. The driving motor is arranged in such a way, one side of the driving motor is connected with the gear box through the transmission rod, one side of the driving motor is fixed, the other side of the driving motor can be connected with the motor mounting plate only by one connecting piece, so that the driving motor is simple and convenient to mount and operate, the driving motor can be mounted quickly, and the mounting speed and the mounting efficiency are high.
Preferably, the motor mounting plate is connected with a connecting plate extending upwards, and the inner side wall of the connecting plate is connected with a convex positioning column; one side of the bottom of the gear box is connected with a connecting screw connected with a motor mounting plate, and the outer side wall of the gear box is provided with a positioning hole which is matched and spliced with the positioning column. The arrangement is that one side of the gear box is connected with the motor mounting plate through the connecting screw, and the other side of the gear box is connected with the positioning column on the motor mounting plate through the positioning hole, so that the use amount of the connecting screw is reduced, and the mounting efficiency of the gear box is improved.
Preferably, the number of the connecting screws is one, the number of the positioning columns is two, and two positioning holes which are respectively matched with the two positioning columns in an inserting way are formed in the outer side wall of the gear box. By the arrangement, when the gear box is installed, the gear box can be installed by only screwing one connecting screw, so that the installation speed of the gear box is further improved; the two positioning columns on the motor mounting plate are matched with the two positioning holes on the gear box in a plugging manner, so that the gear box is positioned accurately and conveniently.
Preferably, the motor mounting plate is provided with two mounting holes, two fixing screws respectively connected with the supporting seat are connected in the two mounting holes, and the two fixing screws are respectively sleeved with a shock pad made of soft elastic materials and used for enabling an elastic buffer gap to be formed between the motor mounting plate and the supporting seat. The shock pad that sets up on the fixed screw of being connected between motor mounting panel and the supporting seat makes and has elasticity buffering clearance between motor mounting panel and the supporting seat, and this shock pad can absorb or weaken the vibrations that gear box and driving motor produced motor mounting panel to avoid transmitting the vibrations of gear box and driving motor to the supporting seat on, thereby make electric lift table noise when going up and down low, the vibrations are little, and user experience feels good.
Preferably, each shock pad comprises a first shock absorber and a second shock absorber which are integrally formed and sleeved on the fixing screw, and the mounting hole of the motor mounting plate is arranged between the first shock absorber and the second shock absorber. The vibration on the motor mounting plate can not be transmitted to the supporting seat through the fixing screws, so that the buffer effect between the motor mounting plate and the supporting seat is further improved, and the electric lifting table is lower in noise and vibration during lifting.
Preferably, the axis of the driving motor is parallel to the axis of the transmission rod. The arrangement avoids the driving motor occupying the space below the desk plate, thereby enabling the space below the desk plate to be larger and avoiding the driving motor from interfering the legs of the user.
Preferably, two cross beams are arranged between the two lifting upright posts, two ends of the two cross beams are respectively connected with supporting seats at the tops of the two lifting upright posts, and the gear box and the driving motor are positioned between the two cross beams. The arrangement makes the gear box and the driving motor all be located in the space between two crossbeams to play certain guard action to gear box and driving motor.
Drawings
Fig. 1 is a schematic structural view of a single motor electric lifting table according to the present utility model.
Fig. 2 is a schematic diagram of a driving motor installation structure of a single-motor electric lifting table according to the present utility model.
Fig. 3 is a schematic diagram of an assembled structure of a driving motor of the single-motor electric lifting table according to the present utility model.
Fig. 4 is a schematic view of another angle assembly structure of a driving motor of a single motor electric lifting table according to the present utility model.
Fig. 5 is a schematic view of a motor mounting plate of a single motor electric lifting table according to the present utility model.
Fig. 6 is a schematic structural view of a shock pad of a single motor electric lift table according to the present utility model.
As shown in the figure:
1. the device comprises a support frame, 100, a cross beam, 101, a support plate, 2, a lifting assembly, 200, a first lifting upright, 201, a second lifting upright, 3, a base, 4, a motor box, 400, a support seat, 401, a box cover, 5, a driving motor, 500, a second positioning surface, 501, a connecting hole, 6, a transmission rod, 7, a gear box, 700, a connecting screw, 701, a connecting flange, 702, a fixing hole, 703, a positioning hole, 704, an input end, 705, a first positioning surface, 8, a motor mounting plate, 800, a connecting block, 801, a connecting piece, 802, a through hole, 803, a connecting plate, 804, a positioning post, 805, an opening, 806, a mounting hole, 807, a fixing screw, 9, a shock pad, 900, a first shock absorber, 901 and a second shock absorber.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the specific examples.
Referring to fig. 1 to 6, the embodiment of the utility model discloses a single-motor electric lifting table, which comprises a table plate (not shown in the drawings), a base 3 and a lifting assembly 2, wherein the lifting assembly 2 comprises two lifting upright posts: the table comprises a first lifting upright post 200 and a second lifting upright post 201, wherein the bottom of the table is connected with a support frame 1, and the two lifting upright posts are connected with the support frame 1 and a base 3 and are used for adjusting the heights of the table and the support frame 1 relative to the base 3; the support frame 1 of this embodiment includes two crossbeams 100, and the both ends of two crossbeams 100 are connected with extension board 101 respectively, and extension board 101 passes through the screw to be connected with the bottom of table. Each lifting column comprises a column body, a gear box 7 and a screw lifting mechanism (not shown in the figure) arranged in the column body, and each top of the column body is connected with a supporting seat 400, the gear box 7 is connected on the supporting seat 400 and is in transmission connection with the screw lifting mechanism in the lifting column, and two ends of two cross beams 100 are respectively connected with the supporting seats 400 at the tops of the two lifting columns. The screw lifting mechanism is also called a linear lifting mechanism, or a linear push rod mechanism, a screw nut pair and the like; the screw rod rotates to drive the inner pipe and the outer pipe of the upright post body to stretch out and draw back, so that the lifting upright post is lifted, which is a product of a mature technology in the prior art, and the embodiment is not described in detail.
The gear box 7 of this embodiment includes a square body shaped housing, the housing has an inner cavity, and an input port and an output port which are communicated with the inner cavity, the input port is the input end 704 of the gear box 7, the output port is the output end of the gear box 7, the axis of the input end 704 is perpendicular to the axis of the output end, that is, the input end 704 is located on the side wall of the gear box 7, and the output end is located on the bottom wall of the gear box 7; a pair of gears connected with each other in a driving way are connected in the shell, the center hole of one gear forms an input end 704 for connecting the driving rod 6, the center hole of the other gear forms an output end for connecting the input end 704 of the screw lifting mechanism, the outer side wall of the gear box 7 is provided with a first positioning surface 705, and the first positioning surface 705 is a plane, namely, the surface of the gear box 7 close to one side of the driving motor 5.
The single-motor electric lifting table further comprises a driving motor 5 and a transmission rod 6, wherein the driving motor 5 is in transmission connection with the transmission rod 6, and two ends of the transmission rod 6 are respectively in transmission connection with input ends 704 of the gear boxes 7 on the two lifting upright posts; a second positioning surface 500 matched and attached with the first positioning surface 705 is arranged on one end surface of the driving motor 5; in the present embodiment, the driving motor 5 is disposed near the first elevation column 200, and in other embodiments, the driving motor 5 may be disposed near the second elevation column 201.
Referring to fig. 1 and 2, a motor mounting plate 8 is connected to a supporting seat 400 on the top of the first lifting upright 200, a connecting piece 801 connected to the driving motor 5 is connected to the motor mounting plate 8, and after the connecting piece 801 is connected to the driving motor 5, a second positioning surface 500 of the driving motor 5 is tightly attached to a first positioning surface 705 of the gear box 7. An opening 805 is formed in the motor mounting plate 8, and an input end of the linear driving mechanism penetrates through the opening 805 and is in transmission connection with an output end of the gear box; the top of the support base 400 is connected with a box cover 401, the box cover 401 covers the driving motor 5 and the gear box 7 together, and the box cover 401 and the support base 400 form a motor box 4. The connection member 801 of the present embodiment is a screw, and in other embodiments, the connection member 801 may be a rivet, a connection pin, or the like. Specifically, a connection block 800 extending upwards is connected to one side of the motor mounting plate 8, which is close to the driving motor 5, a through hole 802 is formed in the connection block 800, the connection piece 801 is connected in the through hole 802, a connection hole 501 matched and connected with the connection piece 801 is formed in the driving motor 5, and the connection hole 501 is a threaded hole matched and threaded with a screw.
In this embodiment, when the single-motor electric lifting table is installed on the driving motor 5, the second positioning surface 500 of the driving motor 5 is tightly attached to the first positioning surface 705 of the gear box 7, that is, the driving motor 5 and the gear box 7 are gapless, and the driving motor 5 is connected with the motor mounting plate 8 through the connecting piece 801; because the driving motor 5 and the gear box 7 are matched and offset through the first positioning surface 705 and the second positioning surface 500, no gap exists between the driving motor 5 and the gear box 7, positioning between the driving motor 5 and the gear box 7 is simple and convenient, concentricity of the axis of the transmission rod 6 and the axis of the input end 704 of the gear box 7 can be easily ensured, transmission abnormal sound of the transmission rod 6 is avoided, and the service life of the electric lifting table is long. The connecting piece 801 on the motor mounting plate 8 is connected with the driving motor 5, so that the driving motor 5 can be limited to move circumferentially or transversely, and the driving motor 5 is firmly connected, so that the driving motor 5 is mounted, and the operation is very simple and convenient.
In the present embodiment, the axis of the drive motor 5 is disposed in parallel with the axis of the transmission rod 6. The driving motor 5 is prevented from occupying the space below the desk plate, so that the space below the desk plate is larger, and the driving motor 5 is prevented from interfering the movement of the legs of the user.
Referring to fig. 3 and 4, as one embodiment of the present utility model; a connecting plate 803 extending upwards is connected to the motor mounting plate 8, the connecting plate 803 is integrally formed with the motor mounting plate 8, and an outer convex positioning column 804 is connected to the inner side wall of the connecting plate 803; a connecting flange 701 is connected to one side of the bottom of the gear box 7, a fixing hole 702 is provided on the connecting flange 701, a connecting screw 700 connected with a motor mounting plate 8 is installed in the fixing hole 702, and a positioning hole 703 which is inserted and connected with the positioning column 804 in a matching manner is provided on the outer side wall of the gear box 7. In this embodiment, the number of the fixing holes 702 and the connecting screws 700 is two, and the outer sidewall of the gear case 7 is provided with two positioning holes 703 respectively inserted into the two positioning posts 804. The installation of the gear box 7 only needs to enable one side of the gear box 7 to be connected with the motor mounting plate 8 through the connecting screw 700, and the other side of the gear box 7 only needs to be spliced with the positioning column 804 on the motor mounting plate 8 through the positioning hole 703, so that the number of the connecting screws 700 is reduced, and the installation efficiency of the gear box 7 is improved. Further, when the gear box 7 is installed, the installation of the gear box 7 can be completed only by screwing one connecting screw 700, and the installation speed of the gear box 7 is further improved; the two positioning columns 804 on the motor mounting plate 8 are in plug-in fit with the two positioning holes 703 on the gear box 7, so that the gear box 7 is positioned accurately and conveniently.
Referring to fig. 5 and 6 again, the motor mounting plate 8 is a metal plate, two mounting holes 806 are formed on two sides of the motor mounting plate 8, inner side walls of the two mounting holes 806 penetrate through the outer side wall surface of the motor mounting plate 8, and the connecting block 800 and the connecting plate 803 are integrally formed with the motor mounting plate 8; two fixing screws 807 respectively connected with the support base 400 are connected in the two mounting holes 806, and a shock pad 9 made of soft elastic material is sleeved on each fixing screw 807 for enabling an elastic buffer gap to be formed between the motor mounting plate 8 and the support base 400. The shock pad 9 that sets up on the fixed screw 807 that is connected between motor mounting panel 8 and the supporting seat 400 makes and has the elasticity buffering clearance between motor mounting panel 8 and the supporting seat 400, and this shock pad 9 can absorb or weaken the vibrations that gear box 7 and driving motor 5 produced motor mounting panel 8 to avoid transmitting the vibrations of gear box 7 and driving motor 5 to supporting seat 400, thereby make electric lift table noise when going up and down low, vibrations are little, and user experience feels good.
The shock pad 9 of the present embodiment is a shock pad 9 made of rubber; in this embodiment, each of the shock-absorbing pads 9 includes a first shock-absorbing body 900 and a second shock-absorbing body 901 integrally formed and sleeved on a fixing screw 807, and the mounting hole 806 of the motor mounting plate 8 is provided between the first shock-absorbing body 900 and the second shock-absorbing body 901. So that the vibration on the motor mounting plate 8 can not be transmitted to the supporting seat 400 through the fixing screw 807, the buffer effect between the motor mounting plate 8 and the supporting seat 400 is further improved, and the electric lifting table has lower noise and lower vibration during lifting.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (8)
1. A single motor electric lift table, its characterized in that: it comprises
A table plate and a base;
two lifting columns: the lifting device comprises a first lifting upright post and a second lifting upright post, wherein each lifting upright post comprises an upright post body, a gear box and a screw rod lifting mechanism arranged in the upright post body, the top of each upright post body is connected with a supporting seat, and the gear box is connected to the supporting seat and is in transmission connection with the screw rod lifting mechanism; the outer side wall of the gear box is provided with a first positioning surface;
the driving motor is in transmission connection with the transmission rod, and two ends of the transmission rod are respectively in transmission connection with the input ends of the gear boxes on the two lifting upright posts; the driving motor is provided with a second positioning surface matched and attached with the first positioning surface;
the motor mounting plate is connected to the supporting seat of the first lifting upright post, a connecting piece connected with the driving motor is connected to the motor mounting plate, and after the connecting piece is connected with the driving motor, the second positioning surface of the driving motor is tightly attached to the first positioning surface of the gear box.
2. A single motor electric lift table as claimed in claim 1 wherein: one side of the motor mounting plate, which is close to the driving motor, is connected with an upward extending connecting block, the connecting block is connected with a connecting piece, and the driving motor is provided with a connecting hole matched and connected with the connecting piece.
3. A single motor electric lift table as claimed in claim 1 wherein: the motor mounting plate is connected with a connecting plate extending upwards, and the inner side wall of the connecting plate is connected with a convex positioning column; one side of the bottom of the gear box is connected with a connecting screw connected with a motor mounting plate, and the outer side wall of the gear box is provided with a positioning hole which is matched and spliced with the positioning column.
4. A single motor electric lift table as claimed in claim 3 wherein: the connecting screw is one, the number of the positioning columns is two, and two positioning holes which are respectively matched with the two positioning columns in an inserting way are formed in the outer side wall of the gear box.
5. A single motor electric lift table as claimed in claim 1 wherein: two mounting holes are formed in the motor mounting plate, two fixing screws which are respectively connected with the supporting seat are connected in the two mounting holes, and shock pads made of soft elastic materials are sleeved on the two fixing screws and used for enabling an elastic buffer gap to be formed between the motor mounting plate and the supporting seat.
6. The single motor electric lift table of claim 5 wherein: every the shock pad includes integrated into one piece and overlaps the first shock absorber and the second shock absorber of establishing on the fixed screw, the mounting hole setting of motor mounting panel is between first shock absorber and second shock absorber.
7. A single motor electric lift table as claimed in any one of claims 1 to 6 wherein: the axis of the driving motor is parallel to the axis of the transmission rod.
8. A single motor electric lift table as claimed in claim 1 wherein: two cross beams are arranged between the two lifting upright posts, two ends of the two cross beams are respectively connected with supporting seats at the tops of the two lifting upright posts, and the gear box and the driving motor are positioned between the two cross beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223449399.0U CN218921991U (en) | 2022-12-22 | 2022-12-22 | Single motor electric lifting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223449399.0U CN218921991U (en) | 2022-12-22 | 2022-12-22 | Single motor electric lifting table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218921991U true CN218921991U (en) | 2023-04-28 |
Family
ID=86086741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223449399.0U Active CN218921991U (en) | 2022-12-22 | 2022-12-22 | Single motor electric lifting table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218921991U (en) |
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2022
- 2022-12-22 CN CN202223449399.0U patent/CN218921991U/en active Active
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