CN215353562U

CN215353562U - Adjustable test bed for middle school chemistry

Info

Publication number: CN215353562U
Application number: CN202022704867.9U
Authority: CN
Inventors: 邱作云
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-12-31
Anticipated expiration: 2030-11-20

Abstract

The utility model discloses an adjustable middle school chemical test bed which comprises a test bed body, wherein a connecting rod is movably connected inside the test bed body, the right end of the connecting rod penetrates through the right side of the test bed body and is movably connected with the test bed body through a bearing, and the surface of the connecting rod is fixedly connected with a pedal body positioned inside the test bed body. According to the utility model, the sleeve is driven to rotate by the rotating wheel and moves forwards through the threads, the sleeve drives the driven rod to rotate by taking the connecting block as an axis and pulls the swing rod to rotate through the extension ring in the moving process, the swing rod enables teeth at the bottom to be separated from contact with the gear while rotating, and then a user changes the inclination angle of the pedal body through the foot, so that the effect of adjusting the inclination angle of the pedal body is achieved, the problem that the existing test bed does not have the effect of adjusting the inclination angle of the pedal inside is solved, the comfort of the test bed is reduced, and the test bed is not convenient for students with different heights to use is solved.

Description

Adjustable test bed for middle school chemistry

Technical Field

The utility model relates to the technical field of chemical teaching aids, in particular to an adjustable test bed for middle school chemistry.

Background

The test bed is a working table for performing experiments in enterprises and institutions such as hospitals, schools, chemical plants, scientific research institutions and the like, and is divided into the following parts according to the placement positions: a central test bed, an edge test bed and a corner test bed; the material composition is as follows: all-steel test bench, steel wood test bench, all-wood test bench, PP test bench, some high cabinets in addition: a fume hood, a medicine cabinet, a vessel cabinet, a gas cylinder cabinet, an explosion-proof cabinet, a slide cabinet and the like.

Need use the test bench to carry out experimental operation at middle school chemistry subject teaching in-process, but current test bench does not possess the effect of adjusting the inclination of inside footboard, has reduced the travelling comfort of test bench, and the student of the different heights of not being convenient for uses.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the background art, the utility model aims to provide an adjustable test bed for middle school chemistry, which has the advantage of being capable of adjusting the inclination angle of an electrostatic pedal, and solves the problems that the existing test bed does not have the effect of adjusting the inclination angle of an internal pedal, reduces the comfort of the test bed, and is inconvenient for students with different heights to use.

In order to achieve the purpose, the utility model provides the following technical scheme: an adjustable chemical test bed for middle school comprises a test bed body, wherein a connecting rod is movably connected inside the test bed body, the right end of the connecting rod penetrates through the right side of the test bed body and is movably connected with the test bed body through a bearing, the surface of the connecting rod is fixedly connected with a pedal body positioned inside the test bed body, the right end of the connecting rod is fixedly connected with a gear positioned on the right side of the test bed body, the right side of the test bed body is movably connected with a swing rod through a pin shaft, the front bottom of the swing rod is provided with teeth meshed with the gear, the surface of the swing rod is provided with an opening, the right side of the test bed body is fixedly connected with a connecting block positioned on the back side of the swing rod, the inside of the connecting block is movably connected with a driven rod through a pin shaft, and the surface of the driven rod is in threaded connection with a sleeve positioned inside the opening, the front end of the sleeve extends to the front of the swing rod and is fixedly connected with a rotating wheel, and the front side and the rear side of the surface of the sleeve are fixedly connected with extension rings positioned on two sides of the swing rod.

Preferably, the inner side of the extension ring is fixedly connected with a rubber ring sleeved on the surface of the sleeve, the inner side of the rubber ring is in contact with the surface of the swing rod, and the rubber ring is made of rubber.

Preferably, the right side of the test bed body is fixedly connected with a connecting frame sleeved on the surface of the swing rod, and the connecting frame is movably connected with the pin shaft.

Preferably, the connecting frame is movably connected with a torsion spring sleeved on the surface of the pin shaft, and one side of the torsion spring, which is far away from the connecting frame, extends to the front of the oscillating bar and is movably connected with the oscillating bar.

Preferably, the left side and the right side of the inner wall of the test bed body are both fixedly connected with a pressurizing plate, the inner side of the pressurizing plate is in contact with the surface of the pedal body, and the inner side of the pressurizing plate is provided with anti-skid grains.

Preferably, the top and the bottom of the back of the swing rod are both fixedly connected with reinforcing ribs, and the reinforcing ribs are triangular and are integrally formed with the swing rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the sleeve is driven to rotate by the rotating wheel and moves forwards through the threads, the sleeve drives the driven rod to rotate by taking the connecting block as an axis and pulls the swing rod to rotate through the extension ring in the moving process, the swing rod enables teeth at the bottom to be separated from contact with the gear while rotating, and then a user changes the inclination angle of the pedal body through the foot, so that the effect of adjusting the inclination angle of the pedal body is achieved, the problem that the existing test bed does not have the effect of adjusting the inclination angle of the pedal inside is solved, the comfort of the test bed is reduced, and the test bed is not convenient for students with different heights to use is solved.

2. The rubber ring is arranged, so that the extension ring and the swing rod can be protected, and the abrasion generated when the extension ring is in contact with the swing rod is reduced.

3. According to the utility model, the connecting frame is arranged, so that the swing rod can be supported, the contact area between the swing rod and the test bed body is increased, and the looseness of the connection part between the pin shaft and the test bed body is avoided.

4. According to the utility model, the torsion spring is arranged, so that the effect of supporting the swing rod can be achieved, and the operation steps of rotating the swing rod to reset by a user are saved.

5. According to the utility model, the pressurizing plate is arranged, so that the friction force between the test bed body and the pedal body can be improved, and the change of the inclination angle of the pedal body caused by the displacement of the pedal body due to vibration in the positioning process is avoided.

6. According to the utility model, the reinforcing ribs are arranged, so that the stability of the swing rod can be improved, the strength of the swing rod is increased, and the bending deformation of the swing rod after long-time use is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right-view schematic diagram of a partial structure of the present invention;

FIG. 3 is a schematic right sectional view of a partial structure of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. a test bed body; 2. a connecting rod; 3. a pedal body; 4. a gear; 5. a swing rod; 6. teeth; 7. an opening; 8. connecting blocks; 9. a driven lever; 10. a sleeve; 11. a rotating wheel; 12. an extension ring; 13. a rubber ring; 14. a connecting frame; 15. a torsion spring; 16. a pressurizing plate; 17. and (5) reinforcing ribs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, the adjustable chemical test bed for middle school provided by the utility model comprises a test bed body 1, a connecting rod 2 is movably connected inside the test bed body 1, the right end of the connecting rod 2 penetrates to the right side of the test bed body 1 and is movably connected with the test bed body 1 through a bearing, the surface of the connecting rod 2 is fixedly connected with a pedal body 3 positioned inside the test bed body 1, the right end of the connecting rod 2 is fixedly connected with a gear 4 positioned on the right side of the test bed body 1, the right side of the test bed body 1 is movably connected with a swing rod 5 through a pin shaft, the bottom of the front side of the swing rod 5 is provided with a tooth 6 mutually meshed with the gear 4, the surface of the swing rod 5 is provided with an opening 7, the right side of the test bed body 1 is fixedly connected with a connecting block 8 positioned on the back side of the swing rod 5, the inside of the connecting block 8 is movably connected with a driven rod 9 through a pin shaft, the surface of the driven rod 9 is in threaded connection with a sleeve 10 positioned inside the opening 7, the front end of the sleeve 10 extends to the front of the swing rod 5 and is fixedly connected with a rotating wheel 11, and the front side and the rear side of the surface of the sleeve 10 are fixedly connected with extension rings 12 positioned at two sides of the swing rod 5.

Referring to fig. 3, a rubber ring 13 sleeved on the surface of the sleeve 10 is fixedly connected to the inner side of the extension ring 12, the inner side of the rubber ring 13 contacts with the surface of the swing rod 5, and the rubber ring 13 is made of rubber.

As a technical optimization scheme of the utility model, the extension ring 12 and the swing rod 5 can be protected by arranging the rubber ring 13, and the abrasion generated when the extension ring 12 is contacted with the swing rod 5 is reduced.

Referring to fig. 4, a connecting frame 14 sleeved on the surface of the swing rod 5 is fixedly connected to the right side of the test bed body 1, and the connecting frame 14 is movably connected with the pin shaft.

As a technical optimization scheme of the utility model, the connecting frame 14 is arranged to support the swing rod 5, so that the contact area between the swing rod 5 and the test bed body 1 is increased, and the looseness of the connection part between the pin shaft and the test bed body 1 is avoided.

Referring to fig. 4, a torsion spring 15 sleeved on the surface of the pin shaft is movably connected inside the connecting frame 14, and one side of the torsion spring 15 away from the connecting frame 14 extends to the front of the swing rod 5 and is movably connected with the swing rod 5.

As a technical optimization scheme of the utility model, the torsion spring 15 is arranged, so that the effect of supporting the swing rod 5 can be achieved, and the operation steps of rotating the swing rod 5 to reset by a user are saved.

Referring to fig. 1, a pressure plate 16 is fixedly connected to both the left side and the right side of the inner wall of the test bed body 1, the inner side of the pressure plate 16 is in contact with the surface of the pedal body 3, and the inner side of the pressure plate 16 is provided with anti-skid threads.

As a technical optimization scheme of the utility model, the pressurizing plate 16 is arranged, so that the friction force between the test bed body 1 and the pedal body 3 can be improved, and the change of the inclination angle of the pedal body 3 caused by the displacement of the pedal body 3 due to vibration in the positioning process is avoided.

Referring to fig. 4, the top and the bottom of the back of the swing link 5 are both fixedly connected with reinforcing ribs 17, and the reinforcing ribs 17 are triangular and are integrally formed with the swing link 5.

As a technical optimization scheme of the utility model, the reinforcing ribs 17 are arranged, so that the stability of the swing rod 5 can be improved, the strength of the swing rod 5 is increased, and the bending deformation of the swing rod 5 after long-time use is avoided.

The working principle and the using process of the utility model are as follows: when in use, a user sits on the front surface of the test bed body 1 and treads feet on the surface of the pedal body 3, the pedal body 3 can absorb static carried by a human body to avoid the influence of the static on experimental operation, when the inclination angle of the pedal body 3 needs to be adjusted, firstly, the rotating wheel 11 is rotated, the rotating wheel 11 drives the sleeve 10 to rotate and move forwards through the screw thread, the sleeve 10 drives the driven rod 9 to rotate by taking the connecting block 8 as the axis and pulls the swing rod 5 to rotate through the extension ring 12 in the moving process, the swing rod 5 enables the teeth 6 at the bottom to be separated from the gear 4 while rotating, then the user changes the inclination angle of the pedal body 3 through the foot, when the pedal body 3 is adjusted and the tooth plates and the teeth 6 are aligned again, the rotating wheel 11 is rotated reversely to reset the swing rod 5 and drive the teeth 6 to be inserted into the gear 4 again, so that the adjustment and the positioning of the pedal body 3 are completed.

In summary, the following steps: this middle school is test bench for chemistry with adjustable, it is rotatory and move forward through the screw thread to drive sleeve pipe 10 through runner 11, sleeve pipe 10 drives driven lever 9 and uses connecting block 8 to rotate as the axle center and through extending ring 12 pulling pendulum rod 5 rotatory in the removal process, pendulum rod 5 makes tooth 6 and gear 4 of bottom break away from the contact in rotatory, then the user changes footboard body 3's inclination through the foot, thereby reach the effect of adjusting the inclination of footboard body 3, the effect that current test bench does not possess the inclination of inside footboard and adjusts has been solved, the travelling comfort of test bench has been reduced, the problem that the student of different heights of being not convenient for used.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a middle school is test bench for chemistry with adjustable, includes test bench body (1), its characterized in that: the testing table is characterized in that a connecting rod (2) is movably connected inside the testing table body (1), the right end of the connecting rod (2) penetrates through the right side of the testing table body (1) and is movably connected with the testing table body (1) through a bearing, a pedal body (3) located inside the testing table body (1) is fixedly connected to the surface of the connecting rod (2), a gear (4) located on the right side of the testing table body (1) is fixedly connected to the right side of the testing table body (1) through a pin shaft, teeth (6) meshed with the gear (4) are arranged at the front bottom of the oscillating rod (5), an opening (7) is formed in the surface of the oscillating rod (5), a connecting block (8) located on the back of the oscillating rod (5) is fixedly connected to the right side of the testing table body (1), and a driven rod (9) is movably connected inside the connecting block (8) through a pin shaft, the surface of the driven rod (9) is in threaded connection with a sleeve (10) located inside the opening (7), the front end of the sleeve (10) extends to the front face of the swing rod (5) and is fixedly connected with a rotating wheel (11), and the front side and the rear side of the surface of the sleeve (10) are fixedly connected with extension rings (12) located on two sides of the swing rod (5).

2. The adjustable chemical laboratory bench for middle school according to claim 1, wherein: the inner side of the extension ring (12) is fixedly connected with a rubber ring (13) sleeved on the surface of the sleeve (10), the inner side of the rubber ring (13) is in contact with the surface of the swing rod (5), and the rubber ring (13) is made of rubber.

3. The adjustable chemical laboratory bench for middle school according to claim 1, wherein: the right side fixedly connected with cover of test bench body (1) is established at link (14) on pendulum rod (5) surface, link (14) and round pin axle swing joint.

4. The adjustable chemical laboratory bench for middle school according to claim 3, wherein: the inside swing joint of connecting frame (14) is established torsional spring (15) on round pin axle surface at the cover, one side that connecting frame (14) was kept away from in torsional spring (15) extends to the front of pendulum rod (5) and with pendulum rod (5) swing joint.

5. The adjustable chemical laboratory bench for middle school according to claim 1, wherein: the left side and the right side of test bench body (1) inner wall all fixedly connected with increased pressure board (16), the inboard of increased pressure board (16) and the surface contact of footboard body (3), anti-skidding line has been seted up to the inboard of increased pressure board (16).

6. The adjustable chemical laboratory bench for middle school according to claim 1, wherein: the top and the bottom of the back of the swing rod (5) are fixedly connected with reinforcing ribs (17), and the reinforcing ribs (17) are triangular and are integrally formed with the swing rod (5).