Adjustable laboratory workbench

Abstract

The utility model discloses an adjustable laboratory workbench which comprises a test bed bottom cabinet, the top of the test bed bottom cabinet is fixedly connected with a transverse seat, the inner walls of the two sides of the transverse seat are symmetrically and rotatably connected with two bidirectional screw rods, and a synchronous driving assembly is jointly installed between the two bidirectional screw rods. The outer surfaces of the two bidirectional screws are symmetrically sleeved with two sliding blocks in a threaded mode, and the tops of the four sliding blocks are rotationally connected with connecting rods. According to the utility model, through the arrangement of the transverse plate, the fixed seat, the one-way screw rod, the sliding seat and the manual driving piece, the use height of the placement rack can be reduced when needed, so that an experiment operator can take articles at a higher position of the placement rack, and the overall practicability is improved; and through the arrangement of a synchronous driving assembly, a transverse seat, a bidirectional screw rod, a sliding block, a connecting rod and a supporting block, the height of the table top of the test table can be adjusted according to the use requirements of experiment operators, so that the requirements are met, and the overall practicability is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to laboratory workbench technical field especially, relates to an adjustable laboratory workbench. BACKGROUND

[0002] Laboratory workbench is a kind of furniture specially designed for laboratory environment, mainly used to support various experimental activities.Laboratory workbench plays a crucial role in the experimental process, providing a stable, flat work surface to ensure the accuracy and reliability of experiments.It is usually composed of one or more table tops, supports, various accessories, and is widely used in hospitals, schools, chemical plants, research institutes and other places.

[0003] At present, the top of some laboratory workbench is provided with multilayer placing rack for placing articles, and the multilayer placing rack is generally arranged at the edge of the top of the laboratory workbench, away from the experimental operator.In the experimental process, the experimental operator is difficult to take the articles at the higher part of the multilayer placing rack, and this is more obvious for some shorter experimental operators, therefore, an adjustable laboratory workbench is proposed. UTILITY MODEL CONTENT

[0004] The utility model discloses in order to solve the shortcoming in the prior art, and propose an adjustable laboratory workbench.

[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: an adjustable laboratory workbench, including test table bottom cabinet, the top of test table bottom cabinet is fixedly connected with cross seat, the both sides inner wall of cross seat is connected with two bidirectional screw rods, two bidirectional screw rods are symmetrically connected with synchronous drive assembly between two, the outer surface of two bidirectional screw rods is symmetrically screwed with two sliding blocks, the top of four sliding blocks is rotatably connected with connecting rod, and the top of adjacent two connecting rods is rotatably connected with support block;

[0006] The top of two support blocks is fixedly connected with horizontal plate, and the inner wall of one side of horizontal plate is fixedly connected with fixed seat, the inner top and inner bottom of fixed seat are rotatably connected with unidirectional screw rod, the outer surface of unidirectional screw rod is screwed with sliding seat, and the top of sliding seat is fixedly connected with placing rack, and the unidirectional screw rod and horizontal plate are rotatably connected with manual drive between two;

[0007] The top of horizontal plate is fixedly connected with test table top.

[0008] Further, the synchronous drive assembly includes two synchronous pulleys, and the synchronous pulleys are arranged on one side of the cross seat, the mounting shafts of the two synchronous pulleys are both arranged through the cross seat and fixedly connected with the adjacent bidirectional screw rods, one end of each synchronous pulley is fixedly connected with a first hand wheel, and a synchronous belt is rotatably connected between the two synchronous pulleys.

[0009] Furthermore, the bottoms of all four sliders slide in contact with the inner bottom of the cross seat.

[0010] Furthermore, the manual drive component includes a second handwheel, which is disposed on one side of the horizontal plate. A rotating shaft is fixedly connected to the center of one side of the outer surface of the second handwheel, and the rotating shaft extends through the outer wall of the horizontal plate into the fixed seat. The rotating shaft is rotatably connected to the horizontal plate. A driving bevel gear is fixedly connected to the end of the rotating shaft away from the second handwheel. A driven bevel gear is meshed with one side of the outer surface of the driving bevel gear, and the driven bevel gear is fixedly sleeved on the outer surface of the one-way screw.

[0011] Furthermore, the fixed seat slides in contact with the horizontal seat.

[0012] Furthermore, the slide block and the fixed base are slidably connected.

[0013] Furthermore, the test bench surface is matched with the placement rack.

[0014] The beneficial effects of this utility model are:

[0015] In use, this adjustable laboratory workbench, through the design of a horizontal plate, fixed seat, one-way screw, slide, and manual drive, can lower the height of the shelf when needed, allowing laboratory operators to retrieve items from higher positions, thus improving overall practicality. Furthermore, through the design of a synchronous drive assembly, horizontal seat, two-way screw, slider, connecting rod, and support block, the height of the workbench surface can be adjusted according to the needs of the laboratory operators, further enhancing overall practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Fig. 1 : A perspective view of this utility model;

[0018] Fig. 2 Side sectional view of this utility model;

[0019] Fig. 3 : A schematic diagram of the connection between the manual drive component and the one-way screw of this utility model;

[0020] Fig. 4 : Cross-sectional view of the horizontal seat of this utility model.

[0021] Reference signs are as follows:

[0022] 1, test bench base cabinet; 2, test bench table top; 3, rack; 4, bidirectional screw; 5, sliding seat; 6, unidirectional screw; 7, fixed seat; 8, second hand wheel; 9, cross plate; 10, rotating shaft; 11, driving bevel gear; 12, driven bevel gear; 13, first hand wheel; 14, synchronous belt; 15, sliding block; 16, supporting block; 17, synchronous pulley; 18, cross seat; 19, connecting rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] As shown in Figs. 1 to 4 Fig. 1, it relates to an adjustable laboratory bench, including test bench base cabinet 1, the top of test bench base cabinet 1 is fixedly connected with cross seat 18, the inner wall of both sides of cross seat 18 is symmetrically rotatably connected with two bidirectional screws 4, the rotatable connection between bidirectional screw 4 and cross seat 18 is commonly installed with bearing, the inner ring of bearing is fixedly connected with bidirectional screw 4, the outer ring of bearing is fixedly connected with cross seat 18, the setting of bearing is conducive to the installation of bidirectional screw 4, synchronous drive assembly is commonly installed between two bidirectional screws 4, synchronous drive assembly includes two synchronous pulleys 17, and synchronous pulley 17 is arranged on one side of cross seat 18, the mounting shaft of two synchronous pulleys 17 all penetrates cross seat 18 and is fixedly connected between adjacent bidirectional screw 4, one end of single synchronous pulley 17 is fixedly connected with first hand wheel 13, the setting of first hand wheel 13 is conducive to the manual operation of driving synchronous drive assembly to run, synchronous belt 14 is commonly meshed and sleeved between two synchronous pulleys 17, synchronous transmission between synchronous pulley 17 and synchronous belt 14 will not appear sliding phenomenon in working, the transmission ratio is constant, synchronous transmission without slip can be realized, the accuracy of transmission is ensured, the outer surface of two bidirectional screws 4 is symmetrically threadedly sleeved with two sliding blocks 15, the bottom of four sliding blocks 15 all abuts and slides with the inner bottom of cross seat 18, cross seat 18 has the limiting effect on sliding block 15 and can ensure the stability of sliding block 15, the top of four sliding blocks 15 all is rotatably connected with connecting rod 19, the top of adjacent two connecting rods 19 is commonly rotatably connected with supporting block 16, when two connecting rods 19 far from supporting block 16 one end are close to each other, then supporting block 16 can be pushed to rise, otherwise supporting block 16 is driven to descend.

[0025] Working principle: rotate the first hand wheel 13, the first hand wheel 13 drives the synchronous pulley 17 connected with it to rotate, the two synchronous pulleys 17 rotate synchronously under the action of the synchronous belt 14, so that the two bidirectional screw rods 4 can be driven to rotate, the bidirectional screw rod 4 drives the two sliding blocks 15 to approach each other, when the two sliding blocks 15 on the same bidirectional screw rod 4 approach each other, the two connecting rods 19 at the ends of the same side are pushed to approach each other, so that the support block 16 is lifted.

[0026] The top of the two support blocks 16 is fixedly connected with a transverse plate 9, one side of the transverse plate 9 is fixedly connected with a fixed seat 7, the fixed seat 7 is in close contact with the transverse seat 18 and slides, the inner top and inner bottom of the fixed seat 7 are rotatably connected with the unidirectional screw rod 6, the bearing inner ring is fixedly connected with the unidirectional screw rod 6, and the bearing outer ring is fixedly connected with the fixed seat 7, the outer surface of the unidirectional screw rod 6 is threadedly connected with a sliding seat 5, the sliding seat 5 is slidably connected with the fixed seat 7, the fixed seat 7 has a limiting effect on the sliding seat 5, which can ensure the stability of the sliding seat 5, the top of the sliding seat 5 is fixedly connected with a placing rack 3, and a manual driving part is installed between the unidirectional screw rod 6 and the transverse plate 9, the manual driving part comprises a second hand wheel 8, the second hand wheel 8 is arranged to drive the manual driving part to operate, the second hand wheel 8 is arranged on one side of the transverse plate 9, a rotating shaft 10 is fixedly connected to the outer surface of one side of the second hand wheel 8, the rotating shaft 10 extends into the fixed seat 7 through the outer wall of the transverse plate 9 and is rotatably connected with the transverse plate 9, the rotating shaft 10 and the transverse plate 9 are connected through a bearing, the bearing inner ring is fixedly connected with the rotating shaft 10, and the bearing outer ring is fixedly connected with the transverse plate 9, one end of the rotating shaft 10 away from the second hand wheel 8 is fixedly connected with a driving bevel gear 11, one side of the outer surface of the driving bevel gear 11 is meshedly connected with a driven bevel gear 12, the driven bevel gear 12 is fixedly connected to the outer surface of the unidirectional screw rod 6, and the driven bevel gear 12 and the driving bevel gear 11 are matched to change the transmission direction.

[0027] Working principle: rotate the second hand wheel 8, the second hand wheel 8 drives the rotating shaft 10 to rotate, then drives the driven bevel gear 12 to rotate through the driving bevel gear 11, and drives the unidirectional screw rod 6 to rotate when the driven bevel gear 12 rotates, the unidirectional screw rod 6 drives the sliding seat 5 to descend, and the sliding seat 5 drives the placing rack 3 to also descend synchronously, so that the use height of the placing rack 3 can be changed.

[0028] The top of the transverse plate 9 is fixedly connected with a test bench table top 2, the test bench table top 2 is matched with the placing rack 3, so that the test bench table top 2 and the placing rack 3 are used in combination.

[0029] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. An adjustable laboratory workbench comprising a test bench base cabinet (1), characterized in that: The top of the test bench base cabinet (1) is fixedly connected with a cross seat (18), the two side inner walls of the cross seat (18) are symmetrically connected with two bidirectional screws (4), the two bidirectional screws (4) are commonly provided with a synchronous driving assembly, the outer surfaces of the two bidirectional screws (4) are symmetrically threadedly sleeved with two sliding blocks (15), the top of each of the four sliding blocks (15) is rotatably connected with a connecting rod (19), the top of each of the two adjacent connecting rods (19) is commonly rotatably connected with a supporting block (16); The top of the two supporting blocks (16) is commonly fixedly connected with a cross plate (9), one side inner wall of the cross plate (9) is fixedly connected with a fixed seat (7), the inner top and the inner bottom of the fixed seat (7) are commonly rotatably connected with a unidirectional screw (6), the outer surface of the unidirectional screw (6) is threadedly sleeved with a sliding seat (5), the top of the sliding seat (5) is fixedly connected with a placing rack (3), the unidirectional screw (6) and the cross plate (9) are commonly provided with a manual driving piece; The top of the cross plate (9) is fixedly connected with a test bench table top (2).

2. An adjustable laboratory bench according to claim 1, characterized in that: The synchronous driving assembly comprises two synchronous pulleys (17), and the synchronous pulleys (17) are arranged on one side of the cross seat (18), the mounting shafts of the two synchronous pulleys (17) are arranged through the cross seat (18) and are fixedly connected with the adjacent bidirectional screws (4), one end of each of the synchronous pulleys (17) is fixedly connected with a first hand wheel (13), and the two synchronous pulleys (17) are commonly meshingly sleeved with a synchronous belt (14).

3. An adjustable laboratory bench according to claim 2, characterized in that: The bottom of each of the four sliding blocks (15) is slidably connected with the inner bottom of the cross seat (18).

4. An adjustable laboratory bench according to claim 1, characterized in that: The manual driving piece comprises a second hand wheel (8), and the second hand wheel (8) is arranged on one side of the cross plate (9), the outer surface of the second hand wheel (8) is fixedly connected with a rotating shaft (10) at the center of one side, the rotating shaft (10) extends through the outer wall of the cross plate (9) into the fixed seat (7), and the rotating shaft (10) is rotatably connected with the cross plate (9), the end, away from the second hand wheel (8), of the rotating shaft (10) is fixedly connected with a driving bevel gear (11), the outer surface of the driving bevel gear (11) is meshingly connected with a driven bevel gear (12), and the driven bevel gear (12) is fixedly sleeved on the outer surface of the unidirectional screw (6).

5. An adjustable laboratory bench according to claim 1, characterized in that: The fixed seat (7) and the cross seat (18) are slidably connected.

6. An adjustable laboratory bench according to claim 1, characterized in that: The sliding seat (5) and the fixed seat (7) are slidably connected.

7. An adjustable laboratory bench according to claim 1, characterized in that: The test bench table top (2) is matched with the placing rack (3).

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