CN111298859A

CN111298859A - Device is extended to physics experiment table desktop

Info

Publication number: CN111298859A
Application number: CN201911238125.7A
Authority: CN
Inventors: 程一航
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-06-19

Abstract

The invention discloses a physical experiment table top expanding device, and relates to physical experiment equipment, which comprises a supporting table, wherein the top of the supporting table is fixedly connected with an upper table top, the left side and the right side of the supporting table are symmetrically and fixedly connected with motor supports, the outer sides of the motor supports are fixedly connected with motors, the left side and the right side of the supporting table are symmetrically provided with accommodating grooves, the motors penetrate through the supporting table and are fixedly connected with driving gears, the driving gears are positioned on the inner sides of the accommodating grooves, the inner sides of the accommodating grooves are fixedly connected with guide supports, the inner sides of the guide supports are slidably connected with telescopic sliding rods, the rear ends of the telescopic sliding rods are fixedly connected with springs, the springs are fixedly connected with the. The expansion table top is simple in structure and convenient to operate, the expansion of the expansion table top is controlled through the motor, so that the problem that the experiment table top is too small in a physical experiment is effectively solved, in addition, the support strength of the expansion table top is good, and the physical learning of middle school students is guaranteed.

Description

Device is extended to physics experiment table desktop

Technical Field

The invention relates to physical experiment equipment, in particular to a desktop expansion device of a physical experiment table.

Background

Physics is the subject of studying the most general laws of motion and basic structures of substances. As the leading subject of natural science, physical studies are as large as the universe and as small as the most basic motion forms and laws of all substances such as basic particles, and therefore, the method becomes the research foundation of other natural science subjects. The theoretical structure of the system fully uses mathematics as the working language of the system, and experiments are used as the only standard for checking the theoretical correctness, which is the most precise natural science subject at present.

The physics experiment is the important subject of physics learning process, for further mastering physical knowledge provides the guarantee, and the physics experiment needs the laboratory table, and current laboratory table desktop is less, can't expand, also has great laboratory table on the market, but bulky, is not convenient for accomodate. Therefore, Chinese patent (No. CN 208115799U) discloses a multifunctional physical experiment table, and although the tabletop of the device can be expanded, the support strength of the expanded tabletop is lower.

Disclosure of Invention

The invention aims to provide a physical experiment table top expanding device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a physical experiment table desktop expanding device comprises a supporting table, wherein the top of the supporting table is fixedly connected with an upper table top, the left side and the right side of the supporting table are symmetrically and fixedly connected with motor supports, the outer sides of the motor supports are fixedly connected with motors, the left side and the right side of the supporting table are symmetrically provided with accommodating grooves, the motors penetrate through the supporting table and are fixedly connected with driving gears, the driving gears are located on the inner sides of the accommodating grooves, the inner sides of the accommodating grooves are fixedly connected with guide supports, the inner sides of the guide supports are slidably connected with telescopic sliding rods, the rear ends of the telescopic sliding rods are fixedly connected with springs, the springs are fixedly connected with the side walls of the accommodating grooves, the outer sides of the telescopic sliding; the telescopic sliding rod is characterized in that a first hinge is fixedly connected to the rear side of the telescopic sliding rod, an inclined connecting rod is fixedly connected to the outer side of the first hinge, an expansion table board is slidably connected to the inner side of the accommodating groove, and the expansion table board is rotatably connected with the outer end of the inclined connecting rod through a second hinge.

As a further scheme of the invention: supporting bench bottom bilateral symmetry fixedly connected with supporting pad, the supporting pad is the rubber material, and the supporting pad passes through screw and supporting bench fixed connection.

As a still further scheme of the invention: the central angle corresponding to the toothless position of the driving gear is 60-90 degrees.

As a still further scheme of the invention: the front side of the supporting table is fixedly connected with a control panel.

As a still further scheme of the invention: the supporting table is fixedly connected with a wire, the tail end of the wire is electrically connected with a plug, and the motor is electrically connected with the wire through a control panel.

As a still further scheme of the invention: the motor is a stepping motor.

As a still further scheme of the invention: the spring is made of stainless steel.

As a still further scheme of the invention: the supporting table is of a hollow structure, and a containing cabinet is arranged below the supporting table.

Compared with the prior art, the invention has the beneficial effects that: the expansion table top is simple in structure and convenient to operate, the expansion of the expansion table top is controlled through the motor, so that the problem that the experiment table top is too small in a physical experiment is effectively solved, in addition, the expansion table top has high supporting strength, guarantees are provided for physical study of middle school students, and the expansion table top is worthy of popularization.

Drawings

FIG. 1 is a schematic structural diagram of a desktop extension device of a physical experiment desk;

FIG. 2 is a partial top cross-sectional view of an upper tabletop of a physical laboratory table tabletop extension device;

FIG. 3 is a left side view schematic diagram of a physical experiment table top expanding device;

in the figure: 1-supporting table, 2-supporting pad, 3-motor support, 4-motor, 5-upper table top, 6-containing groove, 7-driving gear, 8-guiding support, 9-telescopic sliding rod, 10-transmission gear, 11-spring, 12-first hinge, 13-inclined connecting rod, 14-second hinge, 15-expanding table top, 16-control panel, 17-wire, 18-plug and 19-containing cabinet.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The first embodiment is as follows: referring to fig. 1-3, a physical experiment table top expanding device comprises a supporting table 1, wherein the top of the supporting table 1 is fixedly connected with an upper table top 5, the left side and the right side of the supporting table 1 are symmetrically and fixedly connected with motor supports 3, the outer sides of the motor supports 3 are fixedly connected with motors 4, the left side and the right side of the supporting table 1 are symmetrically provided with accommodating grooves 6, the motors 4 penetrate through the supporting table 1 and are fixedly connected with driving gears 7, the driving gears 7 are positioned at the inner sides of the accommodating grooves 6, the inner sides of the accommodating grooves 6 are fixedly connected with guide supports 8, the inner sides of the guide supports 8 are slidably connected with telescopic sliding rods 9, the rear ends of the telescopic sliding rods 9 are fixedly connected with springs 11, the springs 11 are fixedly connected with the side walls of the accommodating grooves 6, the outer sides of the telescopic sliding rods 9 are fixedly;

when the telescopic sliding rod device is used, the motor 4 is started, the motor 4 rotates to drive the driving gear 7 to rotate, the driving gear 7 rotates to drive the telescopic sliding rod 9 to move towards the rear side through the transmission gear 10, the spring 11 is compressed when the telescopic sliding rod 9 moves towards the rear side, and the telescopic sliding rod 9 resets under the spring force action of the spring 11 when the toothless part of the driving gear 7 is matched with the transmission gear 10, so that the front-back reciprocating motion of the telescopic sliding rod 9 is realized;

a first hinge 12 is fixedly connected to the rear side of the telescopic sliding rod 9, an inclined connecting rod 13 is fixedly connected to the outer side of the first hinge 12, an expansion table top 15 is slidably connected to the inner side of the accommodating groove 6, and the expansion table top 15 is rotatably connected with the outer end of the inclined connecting rod 13 through a second hinge 14;

the telescopic sliding rod 9 reciprocates back and forth to drive the inner end of the inclined connecting rod 13 to reciprocate back and forth, so as to drive the expansion table top 15 to stretch and retract, thereby realizing the extension and retraction of the expansion table top 15 and further providing sufficient table top guarantee for experiments.

Supporting bench 1 bottom bilateral symmetry fixedly connected with supporting pad 2, supporting pad 2 are the rubber material, and supporting pad 2 passes through screw and supporting bench 1 fixed connection.

The central angle corresponding to the toothless position of the driving gear 7 is 60-90 degrees.

A control panel 16 is fixedly connected to the front side of the support table 1.

The support table 1 is fixedly connected with a lead 17, the tail end of the lead 17 is electrically connected with a plug 18, and the motor 4 is electrically connected with the lead 17 through a control panel 16.

The motor 4 is a stepping motor.

The spring 11 is made of stainless steel.

Example two: this embodiment is a further improvement of the previous embodiment: the supporting table 1 is of a hollow structure, and an accommodating cabinet 19 is arranged below the supporting table 1. Hold 19 can accomodate required experimental device of experiment and rag etc. through the setting for the experimentation is cleaner and tidier.

The working principle of the invention is as follows: when the telescopic sliding rod type expansion table top is used, the motor 4 is started, the motor 4 rotates to drive the driving gear 7 to rotate, the driving gear 7 rotates to drive the telescopic sliding rod 9 to move towards the rear side through the transmission gear 10, the spring 11 is compressed when the telescopic sliding rod 9 moves towards the rear side, and the telescopic sliding rod 9 can reset under the spring force action of the spring 11 when the toothless part of the driving gear 7 is matched with the transmission gear 10, so that the front-back reciprocating motion of the telescopic sliding rod 9 is realized, the front-back reciprocating motion of the telescopic sliding rod 9 drives the inner end of the inclined connecting rod 13 to reciprocate back, the expansion table top 15 is driven to expand and contract, the extension and contraction of the expansion table top 15 are realized, and then sufficient table top.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A physical experiment table top expanding device comprises a supporting table (1), wherein the top of the supporting table (1) is fixedly connected with an upper table top (5), the left side and the right side of the supporting table (1) are symmetrically and fixedly connected with motor supports (3), the outer sides of the motor supports (3) are fixedly connected with motors (4), the left side and the right side of the supporting table (1) are symmetrically provided with accommodating grooves (6), the motors (4) penetrate through the supporting table (1) and are fixedly connected with driving gears (7), the driving gears (7) are positioned on the inner sides of the accommodating grooves (6), the physical experiment table top expanding device is characterized in that the inner sides of the accommodating grooves (6) are fixedly connected with guide supports (8), the inner sides of the guide supports (8) are slidably connected with telescopic sliding rods (9), the rear ends of the telescopic sliding rods (9) are fixedly connected with springs (11), the springs (11) are fixedly connected with the side walls of, the driving gear (7) is an incomplete gear, and the driving gear (7) is meshed with the transmission gear (10); the telescopic sliding rod (9) is fixedly connected with a first hinge (12) at the rear side, an inclined connecting rod (13) is fixedly connected with the outer side of the first hinge (12), an expansion table board (15) is connected with the inner side of the accommodating groove (6) in a sliding mode, and the expansion table board (15) is rotatably connected with the outer end of the inclined connecting rod (13) through a second hinge (14).

2. The physical experiment table top expanding device is characterized in that supporting pads (2) are fixedly connected to the bottom of the supporting table (1) in a bilateral symmetry mode, the supporting pads (2) are made of rubber, and the supporting pads (2) are fixedly connected with the supporting table (1) through screws.

3. The physical laboratory table top extension device according to claim 1, wherein the central angle of the toothless position of the driving gear (7) is 60-90 °.

4. The physical experiment table top expanding device as claimed in claim 1, wherein a control panel (16) is fixedly connected to the front side of the support table (1).

5. The physical experiment table top expanding device as claimed in claim 1, wherein a lead (17) is fixedly connected to the support table (1), a plug (18) is electrically connected to the tail end of the lead (17), and the motor (4) is electrically connected to the lead (17) through a control panel (16).

6. The physical experiment table top expanding device as claimed in any one of claims 1 to 5, wherein the motor (4) is a stepping motor.

7. The physical laboratory table top extension device according to claim 6, wherein the spring (11) is made of stainless steel.

8. The physical experiment table top expanding device as claimed in claim 1, wherein the supporting table (1) is a hollow structure, and a containing cabinet (19) is arranged below the supporting table (1).