CN219559679U - Experiment table - Google Patents

Abstract

The utility model relates to the technical field of teaching equipment, in particular to an experimental table, comprising a shell, a bottom plate is slidably connected to the right side of the rear end surface of the inner cavity wall of the shell through a chute, and the lower end surface of the bottom plate is rectangularly distributed and provided with universal The upper end of the fifth connecting rod on the left is rotatably connected to the housing through a rotating shaft, and the upper end of the fifth connecting rod on the right is rotatably connected to the housing through a pin shaft, and the fourth connecting rod and the fifth connecting rod are driven by rotating the rotating shaft. The rod rotates to change the included angle between the fourth connecting rod and the fifth connecting rod, so that the bottom plate rises or falls, and the universal wheel touches and stays away from the ground. The utility model can realize the movement and Stable placement in two states is convenient for personnel to move the experimental table; the height of the table can be adjusted according to the height of the user, making it more convenient to use; it can hold and position the light bulb for the experiment Effect, avoiding the situation that the bulb is damaged due to shaking of the table when moving.

Description

a laboratory table

technical field

The utility model relates to the technical field of teaching equipment, in particular to an experiment table.

Background technique

Physics is a subject that studies the most general laws of motion of matter and the basic structure of matter. As the leading discipline of natural science, physics studies the most basic forms and laws of motion of all matter, ranging from the universe to elementary particles, and thus becomes the research basis of other natural science disciplines. Its theoretical structure fully uses mathematics as its working language, and experiments are the sole criterion for testing the correctness of the theory. It is the most sophisticated natural science discipline today. In order to allow students to learn physics knowledge more intuitively, in physics learning, students generally use experiments to verify certain theories.

The patent document whose publication number is CN214897193U discloses a high school physical and electrical experiment device, including a cabinet body, supporting legs, table boards, adjustment devices, placing racks and classification boxes, the bottom of the cabinet body is provided with supporting legs, and the supporting legs The legs are fixedly connected to the cabinet body, the table board is arranged above the cabinet body, and the table board is movably connected to the cabinet body through an adjustment device, the bottom of the placing frame is fixedly connected to the top of the table board, and the classification box is provided with Several, and the bottom of the sorting box is fixedly connected to the horizontal plate of the shelf. This utility model makes it easier for students to find physical appliances and saves students' time. The height of the table can be adjusted conveniently through the adjustment device , students can adjust the height of the table according to their own height, which makes it more convenient for students to use.

However, the above-mentioned patent documents also have the following deficiencies in the actual application process:

It is inconvenient to move the table, and it is laborious to carry personnel, because the above patent document does not set up a mechanism that can move the table through universal wheels and realize stable placement, so when moving the table, personnel are required Carrying is more laborious.

Utility model content

The purpose of this utility model is to provide an experiment table to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An experimental table, comprising a shell, the right side of the rear end surface of the inner cavity wall of the shell is slidably connected with a bottom plate through a chute, the lower end surface of the bottom plate is arranged in a rectangular distribution with universal wheels, and the middle parts of the left and right sides of the upper surface of the bottom plate are Both are rotatably connected to the fifth connecting rod through the pin shaft, the upper end of the fifth connecting rod is rotatably connected to the fourth connecting rod through the pin shaft, the upper end of the fifth connecting rod on the left side is connected to the housing through the rotating shaft, and the The upper end of the fifth connecting rod is rotatably connected to the casing through the pin shaft, and the fourth connecting rod and the fifth connecting rod are driven to rotate by rotating the rotating shaft, so that the included angle between the fourth connecting rod and the fifth connecting rod changes, so that The bottom plate rises or falls to make the universal wheels touch and stay away from the ground.

Preferably, a hinge block is fixedly connected to the rear end surface of the rotating shaft, a third threaded rod is rotatably connected to the middle of the hinge block through a pin shaft, and a nut is threaded to the lower end of the third threaded rod.

Preferably, grooved rods are radially distributed on the left upper end of the rear end surface of the housing along the pin axis at the connection between the third threaded rod and the housing, and the front end of the grooved rod is fixedly connected to the housing, and the third threaded rod is fixedly connected to the housing. The threaded rod is plugged with the grooved rod.

Preferably, a sliding groove block is fixedly connected to the front and rear ends on the left side of the upper end surface of the housing, a connecting shaft is embedded and slidably connected to the inner side of the sliding groove block, and a first connecting shaft is rotatably connected to the front and rear ends of the connecting shaft. The middle part of the first connecting rod is rotatably connected to the second connecting rod through a pin shaft, the right end of the second connecting rod is rotatably connected to the housing through a pin shaft, and the left end of the second connecting rod is embedded with an upper sliding rod through a pin shaft. The chute block is slidably connected with it, the upper end surface of the upper chute block is fixedly connected with the table board, and the upper end of the first connecting rod is rotatably connected to the table board through a pin shaft.

Preferably, the middle part on the left side of the upper end surface of the housing is rotatably connected with a first threaded rod, the first threaded rod is threaded with a threaded block, the middle part of the threaded block is rotatably connected with the connecting shaft, and the lower end of the threaded block is connected by sliding The slot is slidably connected to the housing.

Preferably, the left side of the table board is slidably connected to a slider through a chute, the upper end of the slider is fixedly connected to a clamping block, and the lower end of the slider is rotatably connected to a third connecting rod through a pin shaft. One end of the three connecting rods away from the slider is rotatably connected to a threaded sleeve through a pin shaft, the middle part of the threaded sleeve is threadedly connected to a second threaded rod, and the upper end of the second threaded rod is rotatably connected to the table.

Preferably, an appliance box and a sorting box are respectively fixedly connected to the right side of the top surface of the table top.

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

1. In the utility model, the housing can be moved by the universal wheel. After moving to the designated suitable position, the nut can be rotated to move the nut downward, and the third threaded rod can be rotated to move the third threaded rod from the right Turn out the groove rod on the side, then turn the hinge block clockwise to make the rotating shaft rotate, drive the fourth connecting rod and the fifth connecting rod to rotate, make the bottom plate rise, and then turn the universal wheel away from the ground, and then turn the third screw thread Insert the rod into the groove rod on the left side, turn the nut to fit it, and then it can be used, so that the entire experimental table can be moved and placed stably, and it is convenient for personnel to move the experimental table.

2. In the utility model, the first connecting rod and the second connecting rod can be rotated by manually turning the first threaded rod to drive the threaded block to move the connecting shaft, so that the angle between them changes. That is to say, the table board can be lifted and lowered, so that the height of the table board can be adjusted, and further can be adjusted according to the user's height, which is more convenient to use.

3. In this utility model, by placing the experimental bulb between the clamping blocks, and then the personnel manually rotate the second threaded rod, the threaded sleeve moves and drives the slider to slide to the second threaded rod shaft through the third connecting rod. The center is close to clamp and fix the light bulb, so as to play a clamping and positioning effect on the light bulb used in the experiment, thereby avoiding the situation that the light bulb is damaged due to shaking when the table is moved.

Description of drawings

Fig. 1 is the schematic diagram of the three-dimensional structure of the half-section of the housing of the present invention;

Fig. 2 is a schematic diagram of the enlarged structure of the A region in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of a three-dimensional structure of a half-section of a housing of the present invention viewed from above;

Fig. 4 is a schematic diagram of the enlarged structure of area B in Fig. 3 of the utility model;

Fig. 5 is a schematic diagram of a partial three-dimensional structure of the utility model.

In the accompanying drawings, the list of parts represented by each label is as follows:

In the figure: 1. table plate; 2. first connecting rod; 3. second connecting rod; 4. sliding groove block; 5. connecting shaft; 6. first threaded rod; 7. threaded block; 8. bottom plate; 9 , universal wheel; 10, utensil box; 11, sorting box; 12, clamping block; 13, slider; 14, third connecting rod; 15, threaded sleeve; 16, second threaded rod; 17, upper chute 18, the fourth connecting rod; 19, the fifth connecting rod; 20, the rotating shaft; 21, the hinge block; 22, the third threaded rod; 23, the grooved rod; 24, the nut; 25, the shell.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. For example, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Several embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figure 1-5, the utility model provides a technical solution:

An experimental table, comprising a shell 25, the right side of the rear end surface of the inner cavity wall of the shell 25 is slidably connected with a bottom plate 8 through a chute, the lower end surface of the bottom plate 8 is rectangularly arranged with universal wheels 9, and the left and right sides of the upper end surface of the bottom plate 8 The middle part is rotatably connected with the fifth connecting rod 19 through the pin shaft, the upper end of the fifth connecting rod 19 is rotatably connected with the fourth connecting rod 18 through the pin shaft, and the upper end of the left fifth connecting rod 19 is rotatably connected with the housing 25 through the rotating shaft 20, The upper end of the fifth connecting rod 19 on the right side is connected to the housing 25 through the pin shaft rotation, and the fourth connecting rod 18 and the fifth connecting rod 19 are driven to rotate by rotating the rotating shaft 20, so that the connection between the fourth connecting rod 18 and the fifth connecting rod 19 The angle between them changes, so that the bottom plate 8 rises or falls, and the universal wheel 9 contacts and stays away from the ground.

In this embodiment, the hinge block 21 is fixedly connected to the rear end of the rotating shaft 20 , the middle part of the hinge block 21 is rotatably connected to a third threaded rod 22 through a pin shaft, and the lower end of the third threaded rod 22 is threadedly connected to a nut 24 . The upper end on the left side of the rear end surface of the housing 25 is radially distributed along the pin axis at the joint between the third threaded rod 22 and the housing 25. The front end of the grooved rod 23 is fixedly connected to the housing 25. The third threaded rod 22 Insert with the groove rod 23. The housing 25 can be moved by the universal wheel 9. After moving to the designated suitable position, the nut 24 can be rotated to move the nut 24 downward, and the third threaded rod 22 can be rotated to move the third threaded rod 22 from the right side Rotate out the groove rod 23 of the groove, then turn the hinge block 21 clockwise to rotate the rotating shaft 20, drive the fourth connecting rod 18 and the fifth connecting rod 19 to rotate, and make the bottom plate 8 rise, so that the universal wheel 9 can be kept away from the ground , then turn the third threaded rod 22 to insert it into the grooved rod 23 on the left side, turn the nut 24 to fit it, and then it can be used, so that the whole experimental table can be moved and placed in two states respectively, and then It is convenient for personnel to move the experimental table.

In this embodiment, a sliding groove block 4 is fixedly connected to the front and rear ends on the left side of the upper end surface of the housing 25, and a connecting shaft 5 is embedded and slidably connected to the inner side of the sliding groove block 4, and a first connecting shaft 5 is rotatably connected to the front and rear ends of the connecting shaft 5. Connecting rod 2, the middle part of the first connecting rod 2 is connected to the second connecting rod 3 through a pin shaft, the right end of the second connecting rod 3 is connected to the housing 25 through a pin shaft, and the left end of the second connecting rod 3 is embedded with an upper The chute block 17 is slidably connected with it, the upper end surface of the upper chute block 17 is fixedly connected with the table board 1, and the upper end of the first connecting rod 2 is connected to the table board 1 through a pin shaft rotation. The middle part on the left side of the upper end surface of the housing 25 is rotatably connected with a first threaded rod 6, the first threaded rod 6 is threaded with a threaded block 7, the middle part of the threaded block 7 is connected with the connecting shaft 5 in rotation, and the lower end of the threaded block 7 is slidingly connected to the Housing 25. Manually rotate the first threaded rod 6 to drive the threaded block 7 to move, so that the connecting shaft 5 can be moved, so that the first connecting rod 2 and the second connecting rod 3 can be rotated, and the angle between the two can be changed. The table top 1 is raised and lowered, so that the height of the table top 1 can be adjusted, and further can be adjusted according to the user's height, which is more convenient to use.

In this embodiment, the left side of the table board 1 is slidably connected with a slider 13 through a chute, the upper end of the slider 13 is fixedly connected with a clamping block 12, and the lower end of the slider 13 is rotatably connected with a third connecting rod 14 through a pin shaft. One end of the three connecting rods 14 away from the slider 13 is rotatably connected with a threaded sleeve 15 through a pin shaft, the middle part of the threaded sleeve 15 is threaded with a second threaded rod 16 , and the upper end of the second threaded rod 16 is rotatably connected to the table 1 . By placing the experimental bulb between the clamping blocks 12, and then manually turning the second threaded rod 16, the threaded sleeve 15 moves and drives the slide block 13 to slide to the second threaded rod 16 axis through the third connecting rod 14 Approaching, clamping and fixing the light bulb, so as to play a clamping and positioning effect on the light bulb used in the experiment, thereby avoiding the situation that the light bulb is damaged due to shaking of the table 1 when moving.

The working principle of this utility model: when in use, the tools for the experiment are placed in the classification box 11 and the utensil box 10, the bulbs for the experiment are placed between the clamping blocks 12, and then the personnel manually rotate the second threaded rod 16, and the screw thread The sleeve 15 moves and drives the slider 13 to slide through the third connecting rod 14 and approaches the axis of the second threaded rod 16 to clamp and fix the light bulb, so that the light bulb used in the experiment can be clamped and positioned, thereby avoiding The situation that the bulb is damaged due to shaking of the table board 1 when moving; the personnel manually rotate the first threaded rod 6 to drive the threaded block 7 to move, so that the connecting shaft 5 moves, so that the first connecting rod 2 and the second connecting rod 3 can be moved. Rotate to change the angle between the two, so that the table 1 can be lifted up and down, so that the height of the table 1 can be adjusted, and then adjusted according to the height of the user, which is more convenient to use; The universal wheel 9 can move the housing 25. After moving to the designated suitable position, the nut 24 can be rotated to move the nut 24 downward, and the third threaded rod 22 can be rotated to move the third threaded rod 22 from the right side. Rotate out in groove bar 23, then rotate hinge block 21 clockwise, make rotating shaft 20 rotate, drive the 4th connecting rod 18 and the 5th connecting rod 19 to rotate, make base plate 8 rise, can make universal wheel 9 away from the ground, Then turn the third threaded rod 22 to insert it into the grooved rod 23 on the left side, turn the nut 24 to fit it, and then you can use it, so that the whole experimental table can be moved and placed in two states, which is convenient Personnel move the experimental table.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A laboratory table comprising a housing (25), characterized in that: the utility model discloses a novel electric power steering device, including casing (25) inner chamber wall rear end face right side has bottom plate (8) through spout sliding connection, bottom plate (8) lower terminal surface is the rectangle and distributes and be provided with universal wheel (9), bottom plate (8) up end left and right sides middle part all is connected with fifth connecting rod (19) through the round pin axle rotation, fifth connecting rod (19) upper end is connected with fourth connecting rod (18) through the round pin axle rotation, left side fifth connecting rod (19) upper end is connected in casing (25) through pivot (20) rotation, right side fifth connecting rod (19) upper end is connected in casing (25) through the round pin axle rotation, drives fourth connecting rod (18) and fifth connecting rod (19) through rotating pivot (20) and rotates, makes contained angle between fourth connecting rod (18) and the fifth connecting rod (19) change, makes bottom plate (8) rise or descend, makes universal wheel (9) contact and keep away from ground.

2. A laboratory table as claimed in claim 1, characterized in that: the novel hinge is characterized in that the rear end face of the rotating shaft (20) is fixedly connected with a hinge block (21), the middle part of the hinge block (21) is rotatably connected with a third threaded rod (22) through a pin shaft, and the lower end of the third threaded rod (22) is in threaded connection with a nut (24).

3. A laboratory table as claimed in claim 2, characterized in that: the upper end of the left side of the rear end surface of the shell (25) is provided with groove rods (23) in a radial distribution along a pin shaft at the joint of the third threaded rod (22) and the shell (25), the front end of each groove rod (23) is fixedly connected with the shell (25), and the third threaded rod (22) is spliced with the corresponding groove rod (23).

4. A laboratory table as claimed in claim 1, characterized in that: the utility model discloses a novel sliding chute of a desk, including casing (25), connecting axle (5), first connecting rod (2), second connecting rod (3) right-hand member, upper end and lower sliding chute piece (17) are gone up through the round pin axle embedding and slide connection in both ends all fixedly connected with lower sliding chute piece (4), connecting axle (5) both ends all rotate around and are connected with first connecting rod (2), first connecting rod (2) middle part is connected with second connecting rod (3) through the round pin axle rotation, second connecting rod (3) right-hand member is connected in casing (25), second connecting rod (3) left end has upper sliding chute piece (17) through the round pin axle embedding and slide connection with it, upper sliding chute piece (17) up end fixedly connected with desk (1), first connecting rod (2) upper end is connected in desk (1) through the round pin axle rotation.

5. A laboratory table as claimed in claim 4, wherein: the novel threaded rod is characterized in that a first threaded rod (6) is rotationally connected to the middle of the left side of the upper end face of the shell (25), a threaded block (7) is connected to the first threaded rod (6) in a threaded mode, the middle of the threaded block (7) is rotationally connected with the connecting shaft (5), and the lower end of the threaded block (7) is slidably connected to the shell (25) through a sliding groove.

6. A laboratory table as claimed in claim 4, wherein: the novel table is characterized in that a sliding block (13) is slidably connected to the left side of the table (1) through a sliding groove, a clamping block (12) is fixedly connected to the upper end face of the sliding block (13), a third connecting rod (14) is rotatably connected to the lower end of the sliding block (13) through a pin shaft, a threaded sleeve (15) is rotatably connected to one end, far away from the sliding block (13), of the third connecting rod (14), a second threaded rod (16) is connected to the middle of the threaded sleeve (15) through a thread, and the upper end of the second threaded rod (16) is rotatably connected to the table (1).

7. A laboratory table as claimed in claim 6, wherein: the right side of the upper end surface of the table plate (1) is fixedly connected with an appliance box (10) and a classification box (11) respectively.