CN111891194A

CN111891194A - Trolley for laboratory

Info

Publication number: CN111891194A
Application number: CN202010674146.XA
Authority: CN
Inventors: 刘敏秋; 陈业旺; 欧阳德钦; 阮双琛
Original assignee: Shenzhen Technology University
Current assignee: Shenzhen Technology University
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2020-11-06

Abstract

The invention is suitable for the technical field of laboratory tools and provides a small handcart for a laboratory. The laboratory trolley comprises a trolley frame and universal wheels with brake pads, wherein the universal wheels are mounted at the lower end of the trolley frame; the upper end of frame is installed and is followed the flexible first lift adjustment device who removes of direction of height of frame, and rotatable rotating platform is installed to first lift adjustment device's upper end, and first lift adjustment device drives rotating platform and goes up and down, and rotating platform can the free rotation under the effect of external force. The first lifting adjusting device can be used for driving the rotating platform to be lifted and adjusted to a required height so as to adjust the height of the instrument and equipment placed on the rotating platform, and the rotating platform can be rotated to drive the instrument and equipment to rotate so as to conveniently rotate the display screen of the instrument and equipment to a proper observation angle.

Description

Trolley for laboratory

Technical Field

The invention belongs to the technical field of laboratory tools, and particularly relates to a small handcart for a laboratory.

Background

The laboratory cart has the advantages of smart body and simple operation, and is commonly used in laboratories of various industries, such as enterprise research and development departments, college research laboratories, hospital operating rooms and the like. The dolly can satisfy two basic functions: (1) the trolley is provided with universal wheels, can flexibly move and turn in a small space between the experiment tables, and can be used as a transportation tool of instrument equipment; (2) the universal wheel of the trolley is provided with a brake pad, so that the trolley can be fixed, and the trolley is provided with a socket capable of supplying power to instrument equipment, so that the trolley can be used as a temporary workbench with the socket.

At present, although the laboratory is with small handcart simple, dexterous, there are some shortcomings to be unfavorable for using in the laboratory, its shortcoming mainly has:

(1) the table top height of the trolley is fixed and arranged, and is not adjustable, and the trolley cannot conveniently adjust the height of the table top to correspond to the test bed aiming at test tables with different heights, so that the trolley is inconvenient to use.

(2) The table surface angle of the small cart is fixed and cannot be rotated, so that an operator cannot conveniently adjust the observation angle of the instrument and equipment, and the instrument and equipment cannot be conveniently operated and observe experimental data on an instrument display screen, particularly heavier instrument and equipment.

(3) The trolley is not provided with a dust cover, and the precision instruments and equipment needing dust prevention are covered by additional dust-proof cloth or dust cover, so that the trolley is inconvenient to use.

(4) The socket installed on the small handcart is powered by a long cable, and when the small handcart is not used, the cable needs to be manually collected and coiled on the small handcart, so that the small handcart is not convenient to use and attractive in appearance.

(5) The trolley body is directly arranged on the wheels, and is not provided with a buffering and damping device, so that when the trolley body vibrates greatly in the moving process, some precise instrument and equipment can be damaged by vibration.

(6) The drawer or the supporting plate on the small handcart is only arranged at one side of the handcart body, and a user can only use the drawer or the supporting plate to place and take tools from the side.

Disclosure of Invention

The technical problem to be solved by the embodiment of the invention is to provide a laboratory trolley, and the laboratory trolley aims to solve the problem that the height and the angle of a platform surface of the laboratory trolley in the prior art are not adjustable, so that the use and the observation are inconvenient.

The embodiment of the invention is realized in such a way, and provides a laboratory trolley which comprises a trolley frame and a universal wheel with a brake pad, wherein the universal wheel is arranged at the lower end of the trolley frame; the utility model discloses a vehicle frame, including frame, first lift adjusting device, rotatable rotation platform, first lift adjusting device, rotation platform, first lift adjusting device drives rotation platform goes up and down, rotation platform can freely rotate under the effect of external force, the flexible first lift adjusting device who removes of direction of height of frame is installed to the upper end of frame can be followed the rotation platform goes up and down.

Further, first lift adjusting device includes first linear electric motor, first guide arm, first linear bearing and first moving platform, the rotating platform passes through swivel bearing and installs first moving platform's upper end middle part, first linear electric motor with first linear bearing all installs on the frame, first linear electric motor's output with first moving platform's lower extreme interconnect, first guide arm movably wears to establish in the first linear bearing, the upper end of first guide arm with first moving platform's lower extreme interconnect.

Furthermore, three corners of the first moving platform are connected with the first guide rods, and the other corner of the first moving platform is connected with the output end of the first linear motor.

Furthermore, a second lifting adjusting device capable of moving in a telescopic manner along the height direction of the frame is further installed at the upper end of the frame, the second lifting adjusting device is located on the periphery of the first lifting device, a second moving platform is installed at the upper end of the second lifting adjusting device, and the second lifting adjusting device drives the second moving platform to lift.

Further, the second lifting adjusting device comprises a second linear motor, a second guide rod and a second linear bearing, the second linear motor and the second linear bearing are installed on the frame, the output end of the second linear motor is connected with the lower end of the second moving platform, the second guide rod is movably arranged in the second linear bearing in a penetrating mode, and the upper end of the second guide rod is connected with the lower end of the second moving platform.

Furthermore, three corners of the second moving platform are connected with the second guide rods, and the other corner of the second moving platform is connected with the output end of the second linear motor.

Further, a transparent dust cover for covering the instrument equipment placed on the rotating platform is installed on the periphery of the second moving platform.

Further, an electric drum capable of automatically recycling cables is installed in the frame, and a socket on the electric drum is installed on the side end of the frame.

Further, a shock absorber is arranged between the frame and the universal wheel.

Furthermore, drawers and pull-type supporting plates are mounted on two opposite sides of the frame, the supporting plates and the drawers can be inserted into the frame and pulled out of the frame, and the supporting plates are located above the drawers.

Compared with the prior art, the embodiment of the invention has the advantages that: according to the invention, the first lifting adjusting device is arranged at the upper end of the frame, and the rotatable rotating platform is arranged at the upper end of the first lifting adjusting device, so that after the instrument equipment is placed on the rotating platform, the first lifting adjusting device is used for driving the rotating platform to be lifted and adjusted to a required height, the height of the instrument equipment is equivalent to the height of the test bed, the instrument equipment is convenient to operate, the instrument equipment can be driven to rotate by rotating the rotating platform, and the display screen of the instrument equipment can be conveniently rotated to a proper observation angle.

Drawings

Fig. 1 is a schematic perspective view of a laboratory trolley provided in an embodiment of the present invention;

fig. 2 is a schematic side view of the laboratory cart shown in fig. 1.

The various reference numbers in the figures illustrate: 1. a frame; 2. a universal wheel; 3. a first elevation adjustment device; 4. rotating the platform; 5. a rotating bearing; 6. a second elevation adjustment device; 7. a second mobile platform; 8. a controller; 9. a transparent dust cover; 10. an electric drum; 11. a socket; 12. a drawer; 13. a support plate; 14. a shock absorber; 15. an organic glass plate; 31. a first linear motor; 32. a first guide bar; 33. a first linear bearing; 34. a first mobile platform; 61. a second linear motor; 62. a second guide bar; 63. a second linear bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 and fig. 2 show a laboratory cart according to an embodiment of the present invention. This laboratory is with small handcart includes frame 1 and the universal wheel 2 of taking the brake block, and the lower extreme at frame 1 is installed to universal wheel 2 for drive frame 1 and remove. The upper end of frame 1 is installed and is followed the flexible first lift adjustment device 3 that removes of direction of height of frame 1, and rotatable rotating platform 4 is installed to the upper end of first lift adjustment device 3, and first lift adjustment device 3 drives rotating platform 4 and goes up and down, and rotating platform 4 can the free rotation under the effect of external force.

In the above embodiment, the first lifting adjusting device 3 includes the first linear motor 31, the first guide rod 32, the first linear bearing 33 and the first moving platform 34, the rotating platform 4 is installed in the middle of the upper end of the first moving platform 34 through the rotating bearing 5, so that the rotating platform 4 can rotate around the central line axis of the first moving platform 34, the rotating platform 4 is used for bearing the instrument and the like, and the rotating platform 4 is rotated to enable the instrument and the equipment to conveniently rotate, so as to adjust the angle of the instrument and the equipment, so as to observe data on the display screen of the instrument and conveniently operate the instrument and the equipment.

The first linear motor 31 and the first linear bearing 33 are both mounted on the frame 1, the output end of the first linear motor 31 is connected to the lower end of the first moving platform 34, the first guide rod 32 is movably disposed in the first linear bearing 33, and the upper end of the first guide rod 32 is connected to the lower end of the first moving platform 34, so that when the first linear motor 31 is started, the output end of the first linear motor 31 can drive the first moving platform 34 to ascend and descend, and the first guide rod 32 assists the first moving platform 34 to ascend and descend. Specifically, the first linear motor 31 is a tubular linear motor, three corners of the first moving platform 34 are connected to the first guide rods 32, and the other corner of the first moving platform 34 is connected to the output end of the first linear motor 31. In other embodiments, the output end of the first linear motor 31 may also be connected to the middle of the lower end of the first moving platform 34, and the lower ends of the four corners of the first moving platform 34 are connected to the first guide rods 32 for assisting in supporting and driving the first moving platform 34 to ascend and descend.

In the above embodiment, the upper end of the frame 1 is further provided with the second lifting adjusting device 6 capable of moving in a telescopic manner along the height direction of the frame 1, the second lifting adjusting device 6 is located at the periphery of the first lifting device, the upper end of the second lifting adjusting device 6 is provided with the second moving platform 7, and the second lifting adjusting device 6 drives the second moving platform 7 to lift.

In the above embodiment, the second lifting adjusting device 6 includes the second linear motor 61, the second guide rod 62 and the second linear bearing 63, the second linear motor 61 and the second linear bearing 63 are both installed on the frame 1, the output end of the second linear motor 61 is connected to the lower end of the second moving platform 7, the second guide rod 62 is movably inserted into the second linear bearing 63, and the upper end of the second guide rod 62 is connected to the lower end of the second moving platform 7. Specifically, the second linear motor 61 is a tubular linear motor, the second moving platform 7 is located above the first moving platform 34, three corners of the second moving platform 7 are connected with the second guide rods 62, and another corner of the second moving platform 7 is connected with the output end of the second linear motor 61, so that when the second linear motor 61 is started, the output end of the second linear motor 61 can drive the second moving platform 7 to lift, the second guide rods 62 assist the second moving platform 7 to lift, and the second moving platform 7 can be used for placing instruments, a notebook computer and the like. The first moving platform 34 and the second moving platform 7 form an upper and a lower layer placing platform.

In the above embodiment, the controller 8 for controlling the start and stop of the first linear motor 31 and the second linear motor 61 is installed on the frame 1, so as to conveniently control the first moving platform 34 and the second moving platform 7 to ascend and descend.

In the above embodiment, the transparent dust cover 9 for covering the instrument and equipment placed on the rotating platform 4 is installed on the periphery of the second moving platform 7, and when the second linear motor 61 drives the second moving platform 7 to move up and down, the transparent dust cover 9 moves up and down along with the second moving platform 7. When the second linear motor 61 drives the second moving platform 7 to ascend, a user can put, take, observe and adjust instrument equipment on the rotating platform 4; when the second linear motor 61 drives the second moving platform 7 to descend, the transparent dust cover 9 descends along with the second moving platform 7, so that the rotating platform 4 and the first moving platform 34 can be accommodated in the transparent dust cover 9, thereby preventing dust for the instrument equipment on the rotating platform 4 and well observing the display screen of the instrument equipment on the rotating platform 4.

In the above embodiment, but install the electric drum 10 of automatic recovery cable in the frame 1, the socket 11 on the electric drum 10 is installed on the side of frame 1, when needing to supply power to the instrument equipment on first moving platform 34 and the second moving platform 7, peg graft the instrument equipment on the socket 11 of frame 1, after pulling out the cable of suitable length in the drum of electric drum 10, plug on the connecting cable plug to on the wall socket 11 can, when not needing the power supply, pull out the plug of electric drum 10, electric drum 10 just retrieves the cable to in the drum of electric drum 10 automatically, need not the manual work and coils the cable, the cable of coiling is can not exposed outside, and convenient to use is pleasing to the eye again.

In the above embodiment, drawer 12 and the layer board 13 of pull formula are all installed to the relative both sides of frame 1, and layer board 13 is located the top of drawer 12, and this drawer 12 is used for depositing the experimental instrument with layer board 13, and layer board 13 and drawer 12 homoenergetic insert frame 1 inside and take out from frame 1, make things convenient for taking of experimental instrument. Two drawers 12 and two layer boards 13 are arranged on the frame 1 oppositely, so that a user can take experimental tools from two sides of the frame 1.

In the above embodiment, the shock absorbers 14 are installed between the frame 1 and the universal wheels 2, so that the shaking of the cart body in the process of transporting the equipment can be reduced, and the adverse effect of vibration on the equipment can be reduced. The shock absorber 14 may be a rubber shock absorber 14, a spring damper, an air damper, or the like. The periphery of the lower end of the frame 1 is covered by the semitransparent colorful organic glass plate 15, so that the whole frame is more attractive.

In summary, the first lifting adjusting device 3 is installed at the upper end of the frame 1, and the rotatable rotating platform 4 is installed at the upper end of the first lifting adjusting device 3, so that after the instrument equipment is placed on the rotating platform 4, the rotating platform 4 is driven by the first lifting adjusting device 3 to be lifted and adjusted to a required height, the height of the instrument equipment is equal to the height of the test bed, the instrument equipment is convenient to operate, the instrument equipment can be driven to rotate by rotating the rotating platform 4, and a display screen of the instrument equipment can be conveniently rotated to a proper observation angle.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A laboratory trolley comprises a trolley frame and universal wheels with brake pads, wherein the universal wheels are mounted at the lower end of the trolley frame; the lifting device is characterized in that a first lifting adjusting device capable of moving in a telescopic mode in the height direction of the frame is installed at the upper end of the frame, a rotatable rotating platform is installed at the upper end of the first lifting adjusting device, the first lifting adjusting device drives the rotating platform to lift, and the rotating platform can rotate freely under the action of external force.

2. The laboratory trolley according to claim 1, wherein the first lifting adjusting device comprises a first linear motor, a first guide rod, a first linear bearing and a first moving platform, the rotating platform is mounted at the middle of the upper end of the first moving platform through a rotating bearing, the first linear motor and the first linear bearing are both mounted on the frame, the output end of the first linear motor is connected with the lower end of the first moving platform, the first guide rod is movably inserted into the first linear bearing, and the upper end of the first guide rod is connected with the lower end of the first moving platform.

3. The laboratory cart of claim 2, wherein said first guide bar is attached to three of said corners of said first movable platform, and wherein said first linear motor output is attached to another corner of said first movable platform.

4. The laboratory trolley according to any one of claims 1 to 3, wherein a second lifting adjusting device capable of telescopically moving in a height direction of the trolley frame is further mounted at an upper end of the trolley frame, the second lifting adjusting device is located at the periphery of the first lifting device, a second moving platform is mounted at an upper end of the second lifting adjusting device, and the second lifting adjusting device drives the second moving platform to lift.

5. The laboratory trolley according to claim 4, wherein the second lifting/lowering adjusting device comprises a second linear motor, a second guide rod and a second linear bearing, the second linear motor and the second linear bearing are both mounted on the frame, an output end of the second linear motor is connected with a lower end of the second moving platform, the second guide rod is movably inserted into the second linear bearing, and an upper end of the second guide rod is connected with a lower end of the second moving platform.

6. The laboratory cart of claim 5, wherein said second guide bar is attached to three of said corners of said second movable platform, and wherein said second linear motor output is attached to another corner of said second movable platform.

7. The laboratory cart of claim 4, wherein the periphery of said second mobile platform is fitted with a transparent dust cover for covering instrumentation placed on the rotating platform.

8. The laboratory cart of claim 1, wherein an electrical drum for automatically retrieving electrical cables is mounted within said frame, and wherein said receptacles on said electrical drum are mounted on a lateral end of said frame.

9. The laboratory cart of claim 1, wherein a shock absorber is mounted between said frame and said universal wheels.

10. The laboratory cart of claim 1, wherein drawers and pull-out trays are mounted on opposite sides of said frame, said trays and drawers being insertable into and removable from said frame, said trays being positioned above said drawers.