Inverted lifter

Abstract

The utility model provides an upside-down lifter, which relates to the technical field of lifting structures and comprises a mounting seat, a lifting driving device is arranged in the mounting seat and comprises a motor and a lifting driving component, and a motor shaft of the motor penetrates through the mounting seat to be connected with the lifting driving component. The lifting driving assembly comprises a lifting nut seat, the lifting nut seat is in threaded connection with a lead screw, the lead screw is connected with a driven gear, the driven gear is in meshed connection with a driving gear, and a motor shaft of the motor is connected with the driving gear; the driving gear comprises a first cylinder, first gear teeth are arranged on the first cylinder, and first step positions are arranged at the two ends of the first cylinder. The lifting device has the advantages that the lifting driving assembly is driven by the motor to achieve the lifting function, manual rotation is not needed, use is convenient, labor force is reduced, the first shell and the second shell are fixed together through the screws, the mounting base has the detachable effect, and when the lifting driving assembly breaks down, maintenance and use are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting structures, in particular to an inverted lifter. Background Art

[0002] A table, especially an office workbench, is a tool people need for work and study. The size, height and angle of the table will have a certain impact on people's work, study and physical health. A table is a piece of furniture fixed by a smooth flat plate, legs and other supports. In order to cater to the needs of the public, some tables have a lifting function, but they still contain many defects.

[0003] In the prior art, the technical scheme of the Chinese patent document (patent number: CN201720200017.0, patent name: A manual lifting device for a table) discloses "including a manual lifting device body, characterized in that the manual lifting device body is composed of a handle, a sprocket A, a sprocket B, a chain, a screw, a screw nut, a connecting rod, and a sprocket C; wherein the handle is connected to one end of the sprocket A, the sprocket A is fixed to the seat and the side plate through a bearing, the sprocket A is connected to the driven sprocket B through a chain, the other end of the sprocket B is connected to the rotating shaft through a screw, the other end of the rotating shaft is connected to the gear box, the output end of the gear box is connected to the screw, the screw is threadedly connected to the screw nut, the screw nut is fixed to the lower leg by a screw, and the gear box is fixed to the upper leg by a screw; the sprocket B is connected to the sprocket C through a connecting rod."

[0004] Combined with the description and drawings of the patent document, in the above scheme, the lifting device rotates the screw rod by turning the handle, and the screw rod and the nut move relative to each other to achieve lifting, but the driving handle needs to be turned manually, which is not convenient to use and increases labor. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides an inverted lifter, which can overcome the defects of the prior art mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] An inverted lifter comprises a mounting seat, wherein a lifting drive device is arranged in the mounting seat, the lifting drive device comprises a motor and a lifting drive assembly, and a motor shaft of the motor passes through the mounting seat and is connected with the lifting drive assembly.

[0008] Furthermore, the lifting drive assembly includes a lifting nut seat, the lifting nut seat is threadedly connected to a lead screw, the lead screw is connected to a driven gear, the driven gear is meshedly connected to a driving gear, and the motor shaft of the motor is connected to the driving gear.

[0009] Furthermore, the driving gear includes a first cylinder, the first cylinder is provided with first gear teeth, both ends of the first cylinder are provided with first steps, and the first step is provided with a first bearing.

[0010] Furthermore, the driven gear includes a second cylinder, a second gear tooth is arranged above the second cylinder, the first gear tooth is meshed with the second gear tooth, a second step position and a third step position are arranged below the second cylinder, a second bearing is arranged at the second step position, and a third bearing is arranged at the third step position.

[0011] Furthermore, the mounting seat includes a first shell and a second shell, the first shell is provided with a first through hole, the second shell is provided with a second through hole, and the first through hole and the second through hole are both provided with a fourth step position.

[0012] Furthermore, the first cylinder is hollow, the first through hole, the second through hole and the first cylinder correspond to each other, and the first bearing is arranged on the fourth step position.

[0013] Furthermore, a first placement position and a second placement position are formed between the first shell and the second shell, the second bearing is arranged at the first placement position, and the third bearing is arranged at the second placement position.

[0014] Furthermore, the first shell is provided with a plurality of first fixing holes and a plurality of first fixing cylinders, the second shell is provided with a plurality of second fixing holes and a plurality of second fixing cylinders, the first fixing holes correspond to the second fixing cylinders, and the first fixing cylinders correspond to the second fixing holes.

[0015] Furthermore, mounting holes and mounting columns are disposed on the tops of the first shell and the second shell.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The lifting function is achieved by driving the lifting drive assembly through a motor, without manual rotation, easy to use, and reducing labor. The first shell and the second shell are fixed together by screws, so that the mounting seat has a detachable function. When the lifting drive assembly fails, it can be easily repaired and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is the overall diagram of the inverted lifter;

[0020] Figure 2 This is a schematic diagram of the driven gear and the driving gear;

[0021] Figure 3 This is a schematic diagram of the driven gear and the driving gear;

[0022] Figure 4 The first shell and the second shell are separated Figure 1 ;

[0023] Figure 5 The first shell and the second shell are separated Figure 2 .

[0024] In the figure: 1-mounting seat, 101-first shell, 1011-first through hole, 1012-fourth step position, 1013-first placement position, 1014-second placement position, 1015-first fixing hole, 1016-first fixing cylinder, 102-second shell, 1021-second through hole, 1022-second fixing hole, 1023-second fixing cylinder, 1024-mounting hole, 1025-mounting column, 2-lifting drive assembly, 201-lifting nut seat, 202-screw rod, 203-driven gear, 2031-second cylinder, 2032-second gear tooth, 2033-second step position, 2034-third step position, 2035-second bearing, 2036-third bearing, 204-driving gear, 2041-first cylinder, 2042-first gear tooth, 2043-first step position, 2044-first bearing. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] like Figure 1 As shown, an inverted lifter includes a mounting seat 1, in which a lifting drive device is arranged, the lifting drive device includes a motor and a lifting drive assembly 2, the motor shaft of the motor passes through the mounting seat 1 and is connected to the lifting drive assembly 2, and the lifting function is realized by driving the lifting drive assembly 2 by the motor, without manual rotation, easy to use, and reducing labor.

[0027] Specifically, Figures 2 to 5 As shown, the lifting drive assembly 2 includes a lifting nut seat 201, the lifting nut seat 201 is threadedly connected with a screw rod 202, the screw rod 202 is connected with a driven gear 203, the driven gear 203 is meshed and connected with a driving gear 204, the motor shaft of the motor is connected to the driving gear 204, the motor is started to rotate the motor shaft, the motor shaft rotation drives the driving gear 204 to rotate, the driving gear 204 drives the driven gear 203 to rotate, the driven gear 203 drives the screw rod 202 to rotate, the screw rod 202 will move relative to the lifting nut seat 201 to realize the lifting operation.

[0028] The driving gear 204 includes a first cylinder 2041, and the first cylinder 2041 is provided with a first gear tooth 2042. The driven gear 203 includes a second cylinder 2031, and the second gear tooth 2032 is provided above the second cylinder 2031. The first gear tooth 2042 is meshed and connected with the second gear tooth 2032. When the driving gear 204 rotates, the power is transmitted by the mutual meshing of the first gear tooth 2042 and the second gear tooth 2032, thereby driving the driven gear 203 to rotate.

[0029] The mounting base 1 includes a first shell 101 and a second shell 102, the first shell 101 is provided with a first through hole 1011, the second shell 102 is provided with a second through hole 1021, the first through hole 1011 and the second through hole 1021 are both provided with a fourth step 1012, the first cylinder 2041 is hollow, the first through hole 1011, the second through hole 1021 and the first cylinder 2041 correspond to each other, so that the motor shaft of the motor is inserted into the first through hole 1011 or the second through hole 1021 and connected with the first cylinder 2041, so as to drive the driving gear 204 to rotate, so that the lifting drive component 2 can realize the lifting function.

[0030] The first shell 101 is provided with two first fixing holes 1015 and two first fixing tubes 1016, and the second shell 102 is provided with two second fixing holes 1022 and two second fixing tubes 1023. When installing the mounting base 1, first make the first fixing hole 1015 correspond to the second fixing tube 1023, and the first fixing tube 1016 correspond to the second fixing hole 1022, and then use a screw to pass through the first fixing hole 1015 and the second fixing tube 1023 and tighten them, and then use another screw to pass through the first fixing tube 1016 and the second fixing hole 1022 and tighten them, so as to fix the first shell 101 and the second shell 102 together. The operation is opposite when disassembling. When the lifting drive component 2 fails, it can be easily repaired and convenient to use.

[0031] The first cylinder 2041 is provided with first steps 2043 at both ends. The first step 2043 is provided with a first bearing 2044. The first bearing 2044 is disposed on the fourth step 1012. When the first cylinder 2041 rotates, the first shell 101 and the second shell 102 will not be driven to rotate.

[0032] A second step position 2033 and a third step position 2034 are arranged below the second cylinder 2031, a second bearing 2035 is arranged at the second step position 2033, a third bearing 2036 is arranged at the third step position 2034, a first placement position 1013 and a second placement position 1014 are formed between the first shell 101 and the second shell 102, the second bearing 2035 is arranged on the first placement position 1013, and the third bearing 2036 is arranged on the second placement position 1014. When the second cylinder 2031 rotates, it will not drive the first shell 101 and the second shell 102 to rotate.

[0033] Mounting holes 1024 and mounting posts 1025 are disposed on the top of the first shell 101 and the second shell 102 . The mounting holes 1024 and the mounting posts 1025 play a positioning role and facilitate connection with other components.

[0034] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An inverted lifter, characterized in that: The invention comprises a mounting seat (1), wherein a lifting drive device is arranged in the mounting seat (1), wherein the lifting drive device comprises a motor and a lifting drive assembly (2), wherein a motor shaft of the motor passes through the mounting seat (1) and is connected to the lifting drive assembly (2); the lifting drive assembly (2) comprises a lifting nut seat (201), wherein the lifting nut seat (201) is threadedly connected to a screw rod (202), wherein the screw rod (202) is connected to a driven gear (203), wherein the driven gear (203) is meshedly connected to a driving gear (204), wherein the motor shaft of the motor is connected to the driving gear (204); and the driving gear (204) comprises a first cylinder (2041), wherein the first cylinder (2041) is provided with a first gear tooth. (2042), first steps (2043) are arranged at both ends of the first cylinder (2041), and the first step (2043) is provided with a first bearing (2044); the driven gear (203) includes a second cylinder (2031), a second gear tooth (2032) is arranged above the second cylinder (2031), the first gear tooth (2042) is meshedly connected with the second gear tooth (2032), a second step (2033) and a third step (2034) are arranged below the second cylinder (2031), the second step (2033) is provided with a second bearing (2035), and the third step (2034) is provided with a third bearing (2036).

2. The inverted lifter according to claim 1, characterized in that: The mounting seat (1) comprises a first shell (101) and a second shell (102); the first shell (101) is provided with a first through hole (1011); the second shell (102) is provided with a second through hole (1021); and both the first through hole (1011) and the second through hole (1021) are provided with a fourth step position (1012).

3. The inverted lifter according to claim 2, characterized in that: The first cylinder (2041) is hollow, the first through hole (1011), the second through hole (1021) and the first cylinder (2041) correspond to each other, and the first bearing (2044) is arranged on the fourth step position (1012).

4. The inverted lifter according to claim 3, characterized in that: A first placement position (1013) and a second placement position (1014) are formed between the first shell (101) and the second shell (102); the second bearing (2035) is arranged on the first placement position (1013), and the third bearing (2036) is arranged on the second placement position (1014).

5. The inverted lifter according to claim 4, characterized in that: The first shell (101) is provided with a plurality of first fixing holes (1015) and a plurality of first fixing tubes (1016), and the second shell (102) is provided with a plurality of second fixing holes (1022) and a plurality of second fixing tubes (1023), the first fixing holes (1015) correspond to the second fixing tubes (1023), and the first fixing tubes (1016) correspond to the second fixing holes (1022).

6. The inverted lifter according to claim 5, characterized in that: Mounting holes (1024) and mounting columns (1025) are provided on the tops of the first shell (101) and the second shell (102).

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