Manual height-adjustable desk

Abstract

The present invention provides a manual height-adjustable desk, comprising a desktop module and at least one height-adjustable desk leg module. The desktop module comprises a desktop plate and at least one mounting plate fixed to the bottom of the desktop plate; each height-adjustable desk leg module comprises an inner leg base, an outer leg base fitted over the inner leg base, and a lifting / lowering driving assembly; the outer leg base is mounted on the bottom of the desktop plate; the lifting / lowering driving assembly comprises a lead screw sleeve mounted on the top of the inner leg base, a lead screw matched with the lead screw sleeve, and a transmission member connected to the lead screw; the transmission member is provided in the outer leg base; and a handle module is connected to the transmission member. Compared with the prior art, the manual height-adjustable desk uses rotation of a handle to drive the lead screw to rotate in the lead screw sleeve, and the lead screw drives the outer leg base to lift / lower, thereby controlling the lifting / lowering of the desktop plate. Such a manual lifting / lowering control mode is simple and convenient; and the whole structure is modularized and divided into the desktop module, the height-adjustable desk leg module, and the handle module, thereby reducing the assembly difficulty and facilitating transportation and packaging.

Description

A manual lifting table Technical Field

[0001] The present invention relates to the field of lifting tables, in particular to a manual lifting table. Background Art

[0002] A lifting table generally includes a table top, a support plate, a crossbeam and a lifting column. The table top is generally fixed to the support plate and / or the crossbeam, for example, by using multiple screws, and the support plate is generally fixed to the top of the lifting column by using multiple screws, and the crossbeam is also fixed to the top of the lifting column by using multiple screws.

[0003] Existing lifting columns are mostly electric, which is convenient but inconvenient to use during power outages. Furthermore, existing lifting tables are difficult to assemble, requiring users to assemble scattered parts according to drawings, which is time-consuming, labor-intensive, and inefficient. Technical Solutions

[0004] In response to the above problems, the present invention provides a manual lifting table, which adopts manual control of lifting, which is simple and convenient, and the entire structure is modular, which reduces the difficulty of assembly and facilitates transportation and packaging.

[0005] The technical solution adopted in the present invention is:

[0006] A manual lifting table includes a desktop panel module and at least one lifting table leg module. The desktop panel module includes a desktop panel and at least one mounting plate fixed to the bottom of the desktop panel for mounting the lifting table leg module. Each lifting table leg module includes an inner leg seat, an outer leg seat sleeved on the inner leg seat, and a lifting drive assembly for driving the outer leg seat to rise and fall along the inner leg seat. The outer leg seat is installed at the bottom of the desktop panel. The lifting drive assembly includes a screw sleeve installed on the top of the inner leg seat, a screw cooperating with the screw sleeve, and a transmission member connected to the screw. The transmission member is arranged in the outer leg seat, and the transmission member is connected to the handle module.

[0007] Preferably, the transmission member includes a transmission rod and a first bevel gear transmission group and a second bevel gear transmission group arranged on the transmission rod, the first bevel gear transmission group includes a first horizontal bevel gear installed on the top of the screw and a first vertical bevel gear meshing with the first horizontal bevel gear, and the first vertical bevel gear is installed on the transmission rod; the second bevel gear transmission group includes a second vertical bevel gear provided on the transmission rod and a third vertical bevel gear meshing with the second vertical bevel gear, and the third vertical bevel gear is installed on the rotating rod, the axis of the rotating rod is perpendicular to the axis of the transmission rod, and the rotating rod is connected to the handle module; the handle module includes a handle connected to one end of the rotating rod, and the axis of the handle is perpendicular to the axis of the transmission rod.

[0008] More preferably, a connecting rod connected to both the rotating rod and the handle is provided at the bottom of the table top, and the connecting rod is connected to the rotating rod and the handle by a plug-in structure.

[0009] Preferably, the transmission member includes a transmission rod and a first bevel gear transmission group arranged on the transmission rod, the first bevel gear transmission group includes a first horizontal bevel gear installed on the top of the screw rod and a first vertical bevel gear meshing with the first horizontal bevel gear, the first vertical bevel gear is installed on the transmission rod, one end of the transmission rod is connected to a handle module, the handle module includes a handle connected to one end of the transmission rod, and the axis of the handle is in the same direction as the axis of the transmission rod.

[0010] Preferably, the transmission member is in a transmission housing, the transmission housing is arranged in the top end of the outer table leg, and the transmission housing is installed at the bottom of the mounting plate of the table top; the bottom of the transmission housing is provided with an insertion hole for inserting the top of the screw rod, and the side wall of the transmission housing is also provided with an extension hole for extending the transmission rod.

[0011] Preferably, a placement seat for placing an idle handle is also installed at the bottom of the desktop panel.

[0012] More preferably, the manual lift table includes two lift table leg modules, and two mounting plates are correspondingly provided at the bottom of the desktop panel; the transmission parts in the two lift table leg modules are connected by a connecting rod, and the connecting rod is provided at the bottom of the desktop panel.

[0013] Preferably, the top end of the inner table leg in each lifting table leg module is provided with a mounting seat for mounting the screw sleeve, and the bottom end of the outer table leg is provided with an outer pad.

[0014] Preferably, a base module is also installed at the bottom of each lifting table leg module, and the base module includes a base installed at the bottom of the inner leg seat.

[0015] More preferably, the bottom of the base is provided with rollers or anti-slip pads. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the present invention are: the invention provides a manual lifting table, which uses the rotation of the handle to drive the screw rod to rotate in the screw rod sleeve, driving the lifting table legs to rise and fall, thereby controlling the lifting of the desktop panel. This manual method of controlling the lifting is simple and convenient; the entire structure is modularized, divided into a desktop panel module, a lifting table leg module and a handle module, which reduces the difficulty of assembly and facilitates transportation and packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of a first embodiment of a manual lift table provided by the present invention;

[0018] FIG2 is a second schematic diagram of a first embodiment of a manual lift table provided by the present invention;

[0019] FIG3 is an exploded view of a first embodiment of a manual lift table provided by the present invention;

[0020] FIG4 is a cross-sectional view of a first embodiment of a manual lift table provided by the present invention;

[0021] FIG5 is an exploded view of a lifting module of a first embodiment of a manual lifting table provided by the present invention;

[0022] FIG6 is a cross-sectional view of a lifting module of a first embodiment of a manual lifting table provided by the present invention;

[0023] FIG7 is a schematic diagram of a second embodiment of a manual lift table provided by the present invention;

[0024] FIG8 is a second schematic diagram of a second embodiment of a manual lift table provided by the present invention;

[0025] FIG9 is an exploded view of a second embodiment of a manual lift table provided by the present invention;

[0026] FIG10 is a cross-sectional view of a second embodiment of a manual lift table provided by the present invention;

[0027] FIG11 is an exploded view of a lifting module of a second embodiment of a manual lifting table provided by the present invention;

[0028] FIG12 is a cross-sectional view of a lifting module in a second embodiment of a manual lifting table provided by the present invention. Best Mode for Carrying Out the Invention

[0029] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0030] Figures 1 to 6 show a first preferred embodiment of a manual lift table provided by the present invention. As shown in Figures 1 to 6, the manual lift table includes a desktop module 10 and at least one lift leg module 20. The desktop module 10 includes a desktop 11 and at least one mounting plate 12 fixed to the bottom of the desktop for mounting the lift leg module 20. Each lift leg module 20 includes an inner leg seat 21, an outer leg seat 22 sleeved on the inner leg seat, and a lift drive assembly 23 for driving the outer leg seat to rise and fall along the inner leg seat. The outer leg seat 22 is mounted at the bottom of the desktop 11. The lift drive assembly 23 includes a The screw sleeve 231, the screw 232 cooperating with the screw sleeve and the transmission part 233 connected to the screw, the transmission part 233 is arranged in the outer leg seat 22, the transmission part 233 is connected to the handle module 30, and the handle module 30 is used to drive the screw 232 to rotate through the transmission part 233, the screw 232 cooperates with the screw sleeve 231, the screw sleeve 231 remains stationary in the inner leg seat 21, and the screw 232 rises and falls in the screw sleeve 231, so that the outer leg seat 22 connected to the screw 232 rises and falls along the inner leg seat 21, thereby realizing the lifting and lowering of the desktop panel 11.

[0031] The transmission member 233 includes a transmission rod 2331, a first bevel gear transmission group 2332 and a second bevel gear transmission group 2333 provided on the transmission rod, wherein the first bevel gear transmission group 2332 includes a first horizontal bevel gear 23321 installed on the top of the screw rod and a first vertical bevel gear 23322 meshing with the first horizontal bevel gear, and the first vertical bevel gear 23322 is installed on the transmission rod 2331; the second bevel gear transmission group 2333 includes a second vertical bevel gear 23321 installed on the transmission rod The wheel 23331 and the third vertical bevel gear 23332 meshing with the second vertical bevel gear, the third vertical bevel gear is installed on the rotating rod 2334, the axis of the rotating rod 2334 is perpendicular to the axis of the transmission rod 2331, and the rotating rod 2334 is connected to the handle module 30; the handle module 30 includes a handle 31 connected to one end of the rotating rod 2334, the axis of the handle 31 is perpendicular to the axis of the transmission rod, so that the handle 31 is on one side of the desktop panel (that is, the long side of the desktop panel), which is convenient for user operation.

[0032] A connecting rod 32 is provided at the bottom of the desktop panel 11, which is connected to both the rotating rod 2334 and the handle 31. The connecting rod 32 is mounted on the mounting plate 12 at the bottom of the desktop panel using a clamp seat. The connecting rod, the rotating rod, and the handle are all connected using a plug-in structure, which shortens the length of the handle 31 and facilitates disassembly and transportation. After the height of the desktop panel 11 is adjusted, the handle 31 can be removed. One end of the connecting rod 32 is formed with a square groove, and the other end is formed with a square end. The other end of the rotating rod 2334 is formed with a square end that matches the square groove of the connecting rod 32, and the end of the handle is formed with a square groove that matches the square end of the connecting rod 32. When adjustment is required, the handle 31, the connecting rod 32, and the rotating rod 2334 are connected as a whole. Rotating the handle 31 drives the connecting rod 32 and the rotating rod 2334 to rotate, thereby controlling the lifting and lowering of the desktop panel 11. When the height is suitable, the handle 31 can be removed from the connecting rod 32 to save space.

[0033] The bottom of the desktop panel 11 is also provided with a placement seat 13 for placing an idle handle. The handle 31 removed from the connecting rod 32 can be placed in the placement seat 13, which saves space and is convenient for taking.

[0034] The transmission member 233 is in the transmission housing 24, and the transmission housing 24 is arranged in the top end of the outer table leg 22. The transmission housing 24 is installed at the bottom of the mounting plate 12 of the table top 11; the bottom of the transmission housing 24 is provided with an insertion hole 241 for inserting the top of the screw rod, and the side wall of the transmission housing 24 is also provided with an extension hole 242 for extending the transmission rod, which facilitates the installation of the transmission member 233.

[0035] The lift table leg module 20 of the manual lift table can be a single lift table leg module or two lift table leg modules. As shown in Figures 1 and 2, the manual lift table includes two lift table leg modules 20, and two mounting plates 12 are correspondingly provided at the bottom of the desktop panel 11; the transmission parts in the two lift table leg modules 20 are connected by a connecting rod 25, and the connecting rod 25 is provided at the bottom of the desktop panel 11. In this way, when assembling, the user directly installs the two lift table leg modules 20 on the two mounting plates 12 corresponding to the bottom of the desktop panel 11. At this time, the other end of the transmission rod 2331 in the lift table leg module 20 is connected to the connecting rod 25 through a connecting sleeve; at this time, one of the transmission rods 2331 in the two lift table leg modules 20 is connected to the handle 31. By rotating the handle 31, the outer legs 22 in the two lift table leg modules 20 can be driven to rise and fall at the same time, thereby realizing the lifting and lowering of the desktop panel 11.

[0036] The top end of the inner leg 21 in each lifting table leg module 20 is provided with a mounting seat 211 for installing a screw sleeve, and the screw sleeve 231 is installed in the mounting seat 211; the bottom end of the outer leg 22 is provided with an outer pad 221, which protects the outer leg 22 during the lifting process.

[0037] Each leg module 20 is further provided with a base module 40. The base module 40 includes a base 41 mounted on the bottom of the inner leg seat 21, thereby increasing the support area and providing a stable support. The base 41 may be provided with an anti-slip pad 412 at the bottom, and may also be provided with rollers 411 at the bottom for easy movement.

[0038] A power strip 50 is also installed below the desktop panel 11 for user convenience; the power strip 50 can be installed at the bottom of the desktop panel 11 or on the lifting table leg module 20.

[0039] Figures 7 to 12 are a second preferred embodiment of a manual lifting table provided by the present invention. The difference between the second embodiment and the first embodiment lies in the structure of the transmission member 233A. The transmission member 233A includes a transmission rod 2331 and a first bevel gear transmission group 2332 provided on the transmission rod. The first bevel gear transmission group 2332 includes a first horizontal bevel gear 23321 installed on the top of the screw rod and a first vertical bevel gear 23322 engaged with the first horizontal bevel gear. The first vertical bevel gear 23322 is installed on the transmission rod 2331, and one end of the transmission rod is connected to the handle module 30. The handle module includes a handle 31 connected to one end of the transmission rod, and the axis of the handle is in the same direction as the axis of the transmission rod, so that the handle 31 is at one end of the desktop panel (that is, the wide side of the desktop panel). Rotating the handle 31 at one end of the desktop panel drives the first vertical bevel gear 23322 on the transmission rod 2331 to rotate, and the first vertical bevel gear 23322 is engaged with the first horizontal bevel gear 23321. The first horizontal bevel gear 23321 drives the screw rod 232 to rotate, and the screw rod 232 rises and falls in the screw rod sleeve 231, so that the outer leg seat 22 connected to the screw rod 232 rises and falls along the inner leg seat 21, thereby realizing the lifting and lowering of the desktop panel 11.

[0040] The handle 31 and the transmission rod 2331 are plug-in compatible, which is convenient for disassembly and assembly; one end of the transmission rod is a square end, and one end of the handle 31 is provided with a square groove that matches the square end of the transmission rod, so that when the height needs to be adjusted, the handle 31 can be matched with the transmission rod 2331; after the adjustment is completed, the handle 31 can be removed and placed in the placement seat 13 at the bottom of the desktop panel to save space.

[0041] The entire manual lift table consists of a tabletop module 10, a leg module 20, a handle module 30, and a base module 40. The internal structures of each module are pre-assembled, making it easier to package and transport, and saving the user assembly time. During assembly, the user first installs the base module 40 on the bottom of the leg module 20, then screws the leg module 20 onto the mounting plate 12 at the bottom of the tabletop module 10, and finally installs the handle module 30. This is simple and convenient, reducing assembly difficulty and saving time.

[0042] In summary, the technical solution of the present invention can fully and effectively achieve the above-mentioned utility model objectives, and the structure and functional principles of the invention have been fully verified in the embodiments, and can achieve the expected efficacy and objectives. Without departing from the principles and essence of the invention, various changes or modifications can be made to the embodiments of the invention. Therefore, the invention includes all replacements within the scope of the patent application, and any equivalent changes made within the scope of the invention patent application are within the scope of the patent application in this case.

Claims

1. A manually adjustable height desk, comprising a desktop module and at least one lift desk leg module. The desktop module includes a tabletop panel and at least one mounting plate fixed to the bottom of the tabletop for mounting the lift desk leg module. Characterized in that: Each lift desk leg module includes an inner leg seat, an outer leg seat sleeved on the inner leg seat, and a lift drive assembly for driving the outer leg seat to lift along the inner leg seat. The outer leg seat is mounted at the bottom of the tabletop panel. The lift drive assembly includes a lead screw sleeve mounted at the top of the inner leg seat, a lead screw cooperating with the lead screw sleeve, and a transmission member connected to the lead screw. The transmission member is disposed inside the outer leg seat, and the transmission member is connected to a handle module.

2. The manually adjustable height desk according to claim 1, Characterized in that: The transmission member includes a transmission rod and a first bevel gear transmission group and a second bevel gear transmission group provided on the transmission rod. The first bevel gear transmission group includes a first horizontal bevel gear mounted at the top of the lead screw and a first vertical bevel gear meshing with the first horizontal bevel gear. The first vertical bevel gear is mounted on the transmission rod. The second bevel gear transmission group includes a second vertical bevel gear provided on the transmission rod and a third vertical bevel gear meshing with the second vertical bevel gear. The third vertical bevel gear is mounted on a rotating rod. The axis of the rotating rod is perpendicular to the axis of the transmission rod. The rotating rod is connected to the handle module. The handle module includes a handle connected to one end of the rotating rod. The axis of the handle is perpendicular to the axis of the transmission rod.

3. The manually adjustable height desk according to claim 2, Characterized in that: A connecting rod simultaneously connected to the rotating rod and the handle is provided at the bottom of the tabletop panel. The connecting rod is connected to the rotating rod and the handle by a plug-in structure.

4. The manually adjustable height desk according to claim 1, Characterized in that: The transmission member includes a transmission rod and a first bevel gear transmission group provided on the transmission rod. The first bevel gear transmission group includes a first horizontal bevel gear mounted at the top of the lead screw and a first vertical bevel gear meshing with the first horizontal bevel gear. The first vertical bevel gear is mounted on the transmission rod. One end of the transmission rod is connected to a handle module. The handle module includes a handle connected to one end of the transmission rod. The axis of the handle is in the same direction as the axis of the transmission rod.

5. The manually adjustable height desk according to claim 2 or 4, Characterized in that: The moving member is located inside a transmission housing. The transmission housing is disposed inside the top end of the outer table leg and is mounted at the bottom of the mounting plate of the tabletop panel. An insertion hole for inserting the top of the screw rod is provided at the bottom of the transmission housing. An extension hole for the transmission rod to extend out is further provided on the side wall of the transmission housing.

6. The manually adjustable height desk according to claim 1, Characterized in that: A placement holder for placing the idle handle is further mounted at the bottom of the tabletop panel.

7. The manually adjustable height desk according to claim 1, Characterized in that: The manually adjustable height desk includes two lift desk leg modules. Two mounting plates are correspondingly provided at the bottom of the tabletop panel. The transmission members in the two lift desk leg modules are connected by a connecting rod. The connecting rod is disposed at the bottom of the tabletop panel.

8. The manually adjustable height desk according to claim 1, Characterized in that: A mounting seat for mounting the lead screw sleeve is provided at the top end of the inner table leg in each lift desk leg module, and an outer cushion seat is provided at the bottom end of the outer table leg.

9. The manual lifting table according to claim 1, characterized in that: a base module is further installed at the bottom of each lifting table leg module, and the base module includes a base installed at the bottom of the inner leg seat.

10. The manual lifting table according to claim 9, characterized in that: rollers or anti-slip pads are provided at the bottom of the base.

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