CN212229891U

CN212229891U - Physical experiment operation demonstration table

Info

Publication number: CN212229891U
Application number: CN202021054799.XU
Authority: CN
Inventors: 何儒海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-12-25
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a physical experiment operation demonstration platform, including cabinet body main part, elevating platform and demonstration platform main part, the elevating platform is installed on cabinet body main part top, elevating platform top bearing is connected with the demonstration platform main part, cabinet body main part top is provided with adjusting device, the elevating platform top is provided with fixing device. The utility model discloses a rotatory handle, drive rack rebound, drive backup pad and elevating platform rebound, can highly adjust the elevating platform this moment, the above-mentioned device, solved present physics experiment operation demonstration platform and can't carry out the adjustment of height when using, not only can't make the comparatively comfortable demonstration of operating of teacher, and can't widen student's field of vision, make the demonstration platform have the problem of certain limitation, the stability of its when using has been guaranteed, the regulation effect thereof has been promoted, make the device can be applicable to the teacher of different sizes, the application scope of device has been increased.

Description

Physical experiment operation demonstration table

Technical Field

The utility model relates to a demonstration platform technical field specifically is physics experiment operation demonstration platform.

Background

The physics lab is a place where physics teaching and research is conducted. The physical laboratory is provided with a laboratory table on which various experimental devices can be placed. In school, a teacher generally demonstrates physical experiments on a test bed, students observe the physical experiments, and then perform individual experiments, so that the existing physical experiment operation demonstration table basically meets the requirements of people, but some problems still exist.

The first problem is that: present physical experiment operation demonstration platform can't carry out the adjustment of height when using, not only can't make the comparatively comfortable demonstration of operating of teacher, and can't widen student's field of vision, makes the demonstration platform have certain limitation.

The second problem is that: and present physics experiment operation demonstration platform makes but student's multi-angle observe because its demonstration platform is through rotatory, but it does not be provided with comparatively stable fixing device after rotatory, easily leads to the object to drop from the demonstration platform, consequently urgently needs physics experiment operation demonstration platform to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a physics experiment operation demonstration platform to the demonstration platform that proposes in solving above-mentioned background does not possess altitude mixture control, and can't be stable carries out the problem of fixing to the demonstration platform.

In order to achieve the above object, the utility model provides a following technical scheme: the physical experiment operation demonstration table comprises a cabinet body main body, a lifting table and a demonstration table main body, wherein the lifting table is arranged at the top end of the cabinet body main body, the top end bearing of the lifting platform is connected with a demonstration platform main body, the top end of the cabinet body main body is provided with an adjusting device, the adjusting device comprises a supporting rod, the top end of the cabinet body main body is fixedly connected with the supporting rod, a first sliding groove is arranged in the supporting rod, a first sliding block is embedded in the first sliding groove, one end of the first sliding block, which is far away from the first sliding groove, is fixedly connected with a rack, the top end of the rack is fixedly connected with a supporting plate, the top end of the cabinet body is fixedly connected with a vertical rod, the front end bearing of the vertical rod is connected with a first connecting rod, the front end of the first connecting rod is welded with a gear, and the gear is meshed with the rack, a second connecting rod is welded at the front end of the gear, and a handle is welded at the front end of the second connecting rod.

Preferably, the cabinet body main part is internally provided with a second sliding groove, the second sliding groove is internally embedded with a second sliding block, and one end of the second sliding block, far away from the second sliding groove, is fixedly connected to the lifting platform.

Preferably, fixing device includes connecting plate, dead lever, arm-tie, pull ring, telescopic link, spring and sucking disc, demonstration platform main part right-hand member fixedly connected with connecting plate, the inside dead lever that runs through of connecting plate, dead lever top fixedly connected with arm-tie, arm-tie bottom fixedly connected with telescopic link, and telescopic link bottom fixed connection in connecting plate, the winding of telescopic link outer wall has the spring, and the spring welds between arm-tie and connecting plate, the sticky sucking disc in dead lever bottom.

Preferably, the top end of the pulling plate is fixedly connected with a pulling ring, and the shape of the pulling ring is arc-shaped.

Preferably, a protective pad is glued to the bottom end of the rack, and the protective pad is made of rubber.

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

1. the physical experiment operation demonstration table is provided with a support rod, a first sliding groove, a first sliding block, a rack, a support plate, a vertical rod, a first connecting rod, a gear, a second connecting rod, a handle, a second sliding groove, a second sliding block and a protective pad, when the height of the lifting table needs to be adjusted, the handle is rotated to drive the rack to move upwards and drive the supporting plate and the lifting platform to move upwards, and then the height of the lifting platform can be adjusted, the device solves the problems that the height of the prior physical experiment operation demonstration table can not be adjusted when in use, so that teachers can not operate and demonstrate comfortably, the visual field of students cannot be widened, so that the demonstration table has a certain limitation problem, the stability of the demonstration table in use is ensured, the adjusting effect of the demonstration table is improved, the device can be suitable for teachers with different body types, and the application range of the device is enlarged;

2. this physics experiment operation demonstration platform is provided with the connecting plate, the dead lever, the arm-tie, the pull ring, the telescopic link, spring and sucking disc, when needing rotatory demonstration platform main part, the pulling arm-tie, when the sucking disc breaks away from elevating platform upper surface, the demonstration platform main part is rotatable, when needing to fix, not hard up the arm-tie, elastic action through the spring, drive dead lever and sucking disc downstream, and laminate with the elevating platform outer wall, the demonstration platform main part is fixed, the above-mentioned device, solved and present physics experiment operation demonstration platform because its demonstration platform makes but student's multi-angle observe through the rotation, but it is not provided with comparatively stable fixing device after the rotation, easily lead to the problem that the object dropped from the demonstration platform, its rotatable effect originally has been guaranteed, its stability after the rotation has been promoted, avoid the condition that article dropped when the demonstration.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic top view sectional partial structure diagram of the gear and rack of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the position B in fig. 1 according to the present invention.

In the figure: 1. a cabinet body; 2. a lifting platform; 3. a demonstration table main body; 411. a support bar; 412. a first chute; 413. a first slider; 414. a rack; 415. a support plate; 416. a vertical rod; 417. a first connecting rod; 418. a gear; 419. a second connecting rod; 420. a handle; 421. a second chute; 422. a second slider; 423. a protective pad; 511. a connecting plate; 512. fixing the rod; 513. pulling a plate; 514. a pull ring; 515. a telescopic rod; 516. a spring; 517. and (4) sucking discs.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: physical experiment operation demonstration table, comprising a cabinet body 1, a lifting table 2 and a demonstration table body 3, wherein the lifting table 2 is installed at the top end of the cabinet body 1, the demonstration table body 3 is connected to the top end of the lifting table 2 through a bearing, an adjusting device is arranged at the top end of the cabinet body 1, the supporting rod 411 is fixedly connected to the top end of the cabinet body 1, a first sliding groove 412 is formed in the supporting rod 411, a first sliding block 413 is embedded in the first sliding groove 412, one end, away from the first sliding groove 412, of the first sliding block 413 is fixedly connected with a rack 414, a supporting plate 415 is fixedly connected to the top end of the rack 414, a vertical rod 416 is fixedly connected to the top end of the cabinet body 1, a first connecting rod 417 is connected to the front end of the vertical rod 416 through a bearing, a gear 418 is welded to the front end of the first connecting rod 417, the gear 418, when the height of the lifting platform 2 needs to be adjusted, the handle 420 is rotated to drive the second connecting rod 419 and the gear 418 to rotate, the gear 418 is meshed with the rack 414, the rack 414 is driven to move upwards through the sliding action of the first sliding block 413 in the first sliding groove 412, the supporting plate 415 and the lifting platform 2 are driven to move upwards, at the moment, the height of the lifting platform 2 can be adjusted, the second sliding groove 421 is formed in the cabinet body 1, the second sliding groove 421 is embedded with the second sliding block 422, one end, far away from the second sliding groove 421, of the second sliding block 422 is fixedly connected to the lifting platform 2, the stability of the lifting platform during up and down movement is further improved through the sliding action of the second sliding block 422 in the second sliding groove 421, the bottom end of the rack 414 is glued with the protective pad 423, the protective pad 423 is made of rubber, and the rack 414 can be prevented from colliding with the top end of the cabinet body 1 during downward movement, buffering rack 414, above-mentioned device has solved present physics experiment operation demonstration platform and can't carry out the adjustment of height when using, not only can't make the teacher comparatively comfortable operation demonstration, and can't widen student's field of vision, makes the demonstration platform have the problem of certain limitation, has guaranteed its stability when using, has promoted its regulation effect, makes the device be applicable to the teacher of different sizes, has increased the application scope of device.

The fixing device comprises a connecting plate 511, a fixing rod 512, a pulling plate 513, a pulling ring 514, a telescopic rod 515, a spring 516 and a sucker 517, the right end of the demonstration table main body 3 is fixedly connected with the connecting plate 511, the fixing rod 512 penetrates through the inside of the connecting plate 511, the top end of the fixing rod 512 is fixedly connected with the pulling plate 513, the bottom end of the pulling plate 513 is fixedly connected with the telescopic rod 515, the bottom end of the telescopic rod 515 is fixedly connected with the connecting plate 511, the spring 516 is wound on the outer wall of the telescopic rod 515, the spring 516 is welded between the pulling plate 513 and the connecting plate 511, the sucker 517 is glued at the bottom end of the fixing rod 512, when the demonstration table main body 3 needs to be rotated, the pulling plate 513 is pulled to drive the fixing rod 512 and the sucker 517 to move downwards under the elastic action of the spring 516, and laminate with 2 outer walls of elevating platform, demonstration platform main part 3 is fixed, arm-tie 513 top fixedly connected with pull ring 514, and pull ring 514 shape sets up to the arc, the convenience of its when using has further been promoted through setting up of arm-tie 513, the aforesaid device, but solved and present physics experiment operation demonstration platform because its demonstration platform makes the student multi-angle observe through the rotation, but it is not provided with comparatively stable fixing device after rotatory, easily lead to the problem that the object dropped from the demonstration platform, guaranteed its rotatable effect originally, its stability after rotatory has been promoted, avoid the condition that article dropped when the demonstration.

The working principle is as follows: when the height of the lifting platform 2 needs to be adjusted, the handle 420 is rotated to drive the second connecting rod 419 and the gear 418 to rotate, the gear 418 is meshed with the rack 414, the rack 414 is driven to move upwards through the sliding action of the first sliding block 413 in the first sliding groove 412, the supporting plate 415 and the lifting platform 2 are driven to move upwards, and at the moment, the height of the lifting platform 2 can be adjusted;

when needing rotatory demonstration platform main part 3, pulling arm-tie 513 drives dead lever 512 rebound, and telescopic link 515 stretches, and spring 516 takes place to deform, when sucking disc 517 breaks away from 2 upper surfaces of elevating platform, demonstration platform main part 3 is rotatable, when needing to be fixed, not hard up arm-tie 513, through the elastic action of spring 516, drives dead lever 512 and sucking disc 517 rebound, and with the laminating of 2 outer walls of elevating platform, demonstration platform main part 3 is fixed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.

Claims

1. Physical experiment operation demonstration platform, including cabinet body main part (1), elevating platform (2) and demonstration platform main part (3), elevating platform (2) are installed on cabinet body main part (1) top, elevating platform (2) top bearing is connected with demonstration platform main part (3), its characterized in that: the top end of the cabinet body (1) is provided with an adjusting device which comprises a supporting rod (411), a supporting rod (411) is fixedly connected at the top end of the cabinet body main body (1), a first sliding groove (412) is arranged inside the supporting rod (411), a first sliding block (413) is embedded in the first sliding groove (412), one end, far away from the first sliding groove (412), of the first sliding block (413) is fixedly connected with a rack (414), the top end of the rack (414) is fixedly connected with a supporting plate (415), the top end of the cabinet body (1) is fixedly connected with a vertical rod (416), the front end of the vertical rod (416) is connected with a first connecting rod (417) through a bearing, the front end of the first connecting rod (417) is welded with a gear (418), and the gear (418) is meshed with the rack (414), a second connecting rod (419) is welded at the front end of the gear (418), and a handle (420) is welded at the front end of the second connecting rod (419).

2. The physical experiment operation demonstration table according to claim 1, wherein: the cabinet body main part (1) is inside to be seted up second spout (421), the inside embedded second slider (422) that has of second spout (421), and the one end fixed connection in elevating platform (2) that second spout (421) were kept away from in second slider (422).

3. The physical experiment operation demonstration table according to claim 1, wherein: elevating platform (2) top is provided with fixing device, fixing device includes connecting plate (511), demonstration platform main part (3) right-hand member fixedly connected with connecting plate (511), connecting plate (511) inside is run through has dead lever (512), dead lever (512) top fixedly connected with arm-tie (513), arm-tie (513) bottom fixedly connected with telescopic link (515), and telescopic link (515) bottom fixed connection in connecting plate (511), telescopic link (515) outer wall winding has spring (516), and spring (516) weld between arm-tie (513) and connecting plate (511), dead lever (512) bottom glue has sucking disc (517).

4. The physical experiment operation demonstration table according to claim 3, wherein: the top end of the pulling plate (513) is fixedly connected with a pulling ring (514), and the shape of the pulling ring (514) is arc-shaped.

5. The physical experiment operation demonstration table according to claim 1, wherein: a protective pad (423) is glued to the bottom end of the rack (414), and the protective pad (423) is made of rubber.