CN214483683U - Three-section lifting device and desktop - Google Patents
Three-section lifting device and desktop Download PDFInfo
- Publication number
- CN214483683U CN214483683U CN202023315378.0U CN202023315378U CN214483683U CN 214483683 U CN214483683 U CN 214483683U CN 202023315378 U CN202023315378 U CN 202023315378U CN 214483683 U CN214483683 U CN 214483683U
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- pipe
- lifting device
- section lifting
- pulley
- upper panel
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Abstract
According to the nature of the gas spring, a piston rod of the gas spring is compressed by pressing the tabletop or the upper panel downwards, when the tabletop descends to a required height, the pressure is kept on the piston rod of the gas spring, so that the tabletop can be kept at the required height position, when the height of the tabletop needs to be adjusted, the pressure on the piston rod of the gas spring is only required to be removed, the tabletop can ascend along with the ascending of the piston rod of the gas spring, the tabletop can rebound along with the piston rod of the gas spring and ascend to the highest height, and the pressure can be kept on the piston rod of the gas spring again, so that the tabletop is kept at the required height position; when the table top is lifted, the inner pipe is driven to lift, the middle pipe is driven by the pulley assembly to lift along with the inner pipe in a linkage mode at the same height, and when the table top is lowered, the inner pipe and the gas spring are simultaneously pushed to descend, and the inner pipe is pushed by the pressure cylinder of the gas spring to descend at the same height.
Description
Technical Field
The utility model relates to a three section elevating gear and have this three section elevating gear's desktop.
Background
The height of the table top and the ground is fixed, but in order to meet the requirements of people with different heights on different heights of the table, the furniture with the table top can be provided with an elevator so as to change the height of the table top. At present, elevators for lifting a tabletop on the market are two-section elevators or three-section elevators, however, the lifting stroke of the elevators is limited, which cannot meet the requirements of all clients, and the three-section elevators have unstable product quality and can only bear light weight.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a product quality is stable, the bearing is stronger and long service life's pneumatic three section elevating gear and have this pneumatic three section elevating gear's desktop.
The utility model relates to a three-section lifting device, which comprises an upper panel and a lower panel, wherein a three-section lifting structure for driving the upper panel to lift is arranged between the upper panel and the lower panel; the three-section lifting structure comprises an inner pipe, a middle pipe and an outer pipe which are sleeved together from inside to outside, an air spring is also vertically arranged in the inner cavity of the inner pipe, the free end of a piston rod of the air spring and the top end of the inner pipe are both connected with the upper panel, the bottom of a pressure cylinder of the air spring is connected to the bottom of the middle pipe, and the bottom of the outer pipe is connected to the lower panel; a pulley component for driving the middle pipe to lift along with the inner pipe is arranged between the middle pipe and the outer pipe.
A desktop, including desktop body and above-mentioned three section elevating gear, three section elevating gear's top panel is connected with the lower surface of desktop body.
The utility model discloses a three section elevating gear and desktop, according to the nature of air spring, through pushing down desktop or top panel, make the piston rod compression of air spring, when the desktop descends and reaches required height, to the piston rod holding pressure of air spring, thereby can make the desktop keep in required height position, and when needing to adjust the desktop height, only need remove the pressure to the air spring piston rod, the desktop can rise along with the rising of air spring piston rod, can make the desktop rebound along with the air spring piston rod and rise to the highest height, also can again to the air spring piston rod holding pressure, make the desktop keep in required height; when the table top is lifted, the inner pipe is driven to lift, the middle pipe is driven by the pulley assembly to lift along with the inner pipe in a linkage mode at the same height, and when the table top is lowered, the inner pipe and the gas spring are simultaneously pushed to descend, and the inner pipe is pushed by the pressure cylinder of the gas spring to descend at the same height. Through the cooperation that sets up air spring and assembly pulley, guaranteed the stability that the product goes up and down, also make the desktop can bear heavier object, make three section elevating gear and desktop have longer life.
Drawings
Fig. 1 is a schematic view of the structure of the present invention for lowering the lowest point.
Fig. 2 is a schematic view of the structure of the utility model from the highest point to the highest point.
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of a sheave assembly.
Fig. 5 is a schematic view of a steel cord structure.
Fig. 6 is a schematic view of the structure of the outer tube.
Detailed Description
A three-section lifting device comprises an upper panel 2 and a lower panel 3, wherein a three-section lifting structure for driving the upper panel 2 to lift is arranged between the upper panel 2 and the lower panel 3; the three-section lifting structure comprises an inner pipe 5, a middle pipe 6 and an outer pipe 7 which are sleeved together from inside to outside, wherein an air spring 4 is also vertically arranged in the inner cavity of the inner pipe 5, the free end of a piston rod of the air spring 4 and the top end of the inner pipe 5 are both connected with the upper panel 2, the bottom of a pressure cylinder of the air spring 4 is connected to the bottom of the middle pipe 6, and the bottom end of the outer pipe 7 is connected to the lower panel 3; a pulley component for driving the middle pipe 6 to move up and down along with the inner pipe 5 is arranged between the middle pipe 6 and the outer pipe 7. The gas spring 4 is prior art.
The pulley assembly comprises a pair of rotatable pulleys 11, the two pulleys 11 are symmetrically arranged on the outer side wall of the middle pipe 6 in the vertical direction, a tightened steel wire rope 12 is wound on the two pulleys 11, one free end of the steel wire rope 12 is connected with the steel wire rope 12 through a steel wire fixing block 15 capable of enabling the steel wire rope 12 to slide, and the other free end of the steel wire rope 12 penetrates through the middle pipe 6 and the outer pipe 7 and then is connected to the upper panel 2. The upper panel 2 is lifted to pull the other free end of the steel wire rope 12 to lift, so that the middle pipe 6 is driven to lift along with the inner pipe 5 by the rotation of the steel wire rope 12 on the pulley 11. The structure that the steel wire rope 12 slides on the steel wire fixing block 15 belongs to the prior art. The pulley 11 is connected to the middle pipe 6 through a rotating shaft 10. A supporting piece 13 is disposed between the two rotating shafts 10 for enhancing the supporting strength of the rotating shafts 10.
The side wall of the outer tube 7 is vertically provided with a long strip-shaped through hole 19, a vertical strip-shaped notch 20 is arranged above the long strip-shaped through hole 19 and at the top end of the outer tube 7, the free end of the pulley 11 at the upper part penetrates through the strip-shaped notch 20 of the outer tube 7 and can move up and down along the strip-shaped notch 20, and the free end of the pulley 11 at the lower part penetrates through the long strip-shaped through hole 19 of the outer tube 7 and can move up and down along the long strip-shaped through hole 19. Can guarantee the stability of pulley 11 moving direction through rectangular shape through-hole 19 and bar breach 20, ensure the stability that outer tube 7 and well pipe 6 go up and down, simultaneously, can also avoid well pipe 6 to break away from outer tube 7 through the height that rectangular shape through-hole 19 restriction well pipe 6 rises.
The wire rope 12 is connected to the inner wall of the outer tube 7 by a wire connecting block 16 which enables the wire rope 12 to slide. The structure of the wire connecting block 16 for sliding the wire rope 12 belongs to the prior art.
The free end of the steel wire rope 12 connected with the upper panel 2 is connected with an adjusting screw 17, a flat head screw 18 vertically penetrates through the upper panel 2, an inner cavity is formed in the threaded section of the flat head screw 18, an internal thread is formed in the side wall of the inner cavity, and the adjusting screw 17 is screwed into the inner cavity of the flat head screw 18. The tightness of the steel wire rope 12 can be adjusted through the flat head screw 18 and the adjusting screw 17.
The guide assemblies 8 are arranged between the middle pipe 6 and the inner pipe 5 and between the middle pipe 6 and the outer pipe 7, so that the stability of the vertical movement of the middle pipe 6 and the inner pipe 5 can be further ensured.
The guide assembly 8 may be a linear bearing or a cylindrical bearing.
A desktop comprises a desktop body and the three-section lifting device, wherein an upper panel 2 of the three-section lifting device is connected with the lower surface of the desktop body 1. Because the desktop has the three-section lifting device, the desktop also has the beneficial technical effects of the three-section lifting device, and the description is omitted.
A press switch 9 is arranged on the table top, and the pressure of the piston rod of the gas spring 4 is kept and decompressed through the press switch 9. The structure that the pressure of the piston rod of the gas spring 4 is kept and decompressed by pressing the press switch 9 belongs to the prior art.
Claims (10)
1. A three-section lifting device is characterized in that: the lifting device comprises an upper panel (2) and a lower panel (3), wherein a three-section lifting structure for driving the upper panel (2) to lift is arranged between the upper panel (2) and the lower panel (3); the three-section lifting structure comprises an inner pipe (5), a middle pipe (6) and an outer pipe (7) which are sleeved together from inside to outside, wherein an air spring (4) is also vertically arranged in an inner cavity of the inner pipe (5), the free end of a piston rod of the air spring (4) and the top end of the inner pipe (5) are connected with the upper panel (2), the bottom of a pressure cylinder of the air spring (4) is connected to the bottom of the middle pipe (6), and the bottom end of the outer pipe (7) is connected to the lower panel (3); a pulley component for driving the middle pipe (6) to lift along with the inner pipe (5) is arranged between the middle pipe (6) and the outer pipe (7).
2. A three-section lifting device according to claim 1, characterized in that: pulley assembly includes a pair of rotatable pulley (11), and two pulley (11) are on well pipe (6) lateral wall in vertical direction symmetry setting, and around there being tight wire rope (12) on two pulley (11), a free end and wire rope (12) of wire rope (12) are connected through steel wire fixed block (15) that enable wire rope (12) slip itself, another free end of wire rope (12) is worn out the back by well pipe (6) and outer tube (7) and is connected on top panel (2).
3. A three-section lifting device according to claim 2, characterized in that: the pulley structure is characterized in that a long-strip-shaped through hole (19) is vertically formed in the side wall of the outer tube (7), a vertical strip-shaped notch (20) is formed in the upper portion of the long-strip-shaped through hole (19) and in the top end of the outer tube (7), the free end of the pulley (11) located above penetrates through the strip-shaped notch (20) of the outer tube (7) and can move up and down along the strip-shaped notch (20), and the free end of the pulley (11) located below penetrates through the long-strip-shaped through hole (19) of the outer tube (7) and can move up and down along the long-strip-shaped through hole (19).
4. A three-section lifting device according to claim 2 or 3, characterized in that: the steel wire rope (12) is connected with an adjusting screw (17) at the free end connected with the upper panel (2), a flat head screw (18) vertically penetrates through the upper panel (2), an inner cavity is formed in the thread section of the flat head screw (18), an internal thread is formed in the side wall of the inner cavity, and the adjusting screw (17) is screwed into the inner cavity of the flat head screw (18).
5. A three-section lifting device according to any of claims 1-3, characterized in that: guide assemblies (8) are arranged between the middle pipe (6) and the inner pipe (5) and between the middle pipe (6) and the outer pipe (7).
6. A three-section lifting device according to claim 4, characterized in that: guide assemblies (8) are arranged between the middle pipe (6) and the inner pipe (5) and between the middle pipe (6) and the outer pipe (7).
7. A three-section lifting device according to claim 5, characterized in that: the guide assembly (8) is a linear bearing or a cylindrical bearing.
8. A three-section lifting device according to claim 6, characterized in that: the guide assembly (8) is a linear bearing or a cylindrical bearing.
9. A desktop, comprising: comprising a table top body and a three-section lifting device as claimed in any one of claims 1 to 6, connecting the upper panel (2) with the lower surface of the table top body (1).
10. A table top according to claim 9 wherein: a push switch (9) is arranged on the desktop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315378.0U CN214483683U (en) | 2020-12-31 | 2020-12-31 | Three-section lifting device and desktop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315378.0U CN214483683U (en) | 2020-12-31 | 2020-12-31 | Three-section lifting device and desktop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214483683U true CN214483683U (en) | 2021-10-26 |
Family
ID=78213587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023315378.0U Active CN214483683U (en) | 2020-12-31 | 2020-12-31 | Three-section lifting device and desktop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214483683U (en) |
-
2020
- 2020-12-31 CN CN202023315378.0U patent/CN214483683U/en active Active
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| GR01 | Patent grant |