CN220731032U - Sand table convenient to height-adjusting - Google Patents

Abstract

The utility model relates to the technical field of sand tables in exhibition halls, in particular to a sand table convenient for height adjustment, which comprises a sand table, wherein curtains are arranged on four sides of the lower end of the sand table, a fixed seat is fixedly arranged at the lower end of the sand table, the fixed seat is in an inverted U shape, two lifting rods are hinged between the inner walls of the fixed seat, a base is arranged at the lower end of the sand table, a rectangular groove is formed in the upper end of the base, and a fixed block is fixedly arranged in the middle of the inner wall of the rectangular groove formed in the base. According to the utility model, through the mechanism capable of adjusting the lifting of the sand table, the sand table can be adjusted according to the height of people in the exhibition hall, so that the sand table can be suitable for different groups to watch, the practicability of the sand table is greatly improved, and the sand table can be driven to move up and down only by controlling the servo motor to work through the arranged threaded rod and the left-handed threads and the right-handed threads on the circumferential surface of the threaded rod.

Description

Sand table convenient to height-adjusting

Technical Field

The utility model relates to the technical field of exhibition hall sand tables, in particular to a sand table convenient to adjust the height.

Background

The sand table comprises a terrain sand table, a building sand table and an electronic sand table, wherein the electronic sand table consists of a multimedia computer (a touch screen integrated machine), a logic controller, a driver, a stage light controller, a touch remote controller (a PDA palm computer) and other devices, and the sand table is generally placed in an exhibition hall for people to watch;

however, the sand table in the exhibition hall is generally of a fixed structure, and cannot be adjusted up and down according to the height of the viewer, so that the ornamental practicality of the sand table is greatly reduced.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the sand table with the height convenient to adjust.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a sand table convenient to height-adjusting, includes the sand table platform, sand table platform lower extreme four sides all is equipped with the blind, sand table platform lower extreme fixed mounting has the fixing base, the fixing base shape is the shape of falling U, it has two lifter to articulate between the fixing base inner wall, sand table platform lower extreme is equipped with the base, rectangular channel has been seted up to the base upper end, rectangular channel inner wall middle fixed mounting that the base was seted up has the fixed block, the fixed block side runs through and has seted up well shape hole, the downthehole rotation of well shape that the fixed block was seted up has cup jointed the spacing ring.

As a preferable technical scheme of the utility model, the side end of the limiting ring is fixedly provided with a threaded rod in a penetrating way.

As a preferable technical scheme of the utility model, a servo motor is fixedly arranged at the right side end of the threaded rod.

As a preferable technical scheme of the utility model, the U-shaped frames are arranged on the circumferential surfaces of the two side sections of the threaded rod in a penetrating way through threads.

As a preferable technical scheme of the utility model, the two U-shaped frames are both slidably arranged in the rectangular groove formed in the base.

As a preferable technical scheme of the utility model, the upper ends of the two U-shaped frames are respectively hinged with the two lifting rods.

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

1. can adjust the mechanism that the sand table platform goes up and down through setting up for the device can be according to the height of crowd in the exhibition hall to adjust the sand table platform, thereby makes the sand table platform can adapt to different crowd and watch, great improvement the practicality of sand table platform.

2. Through the threaded rod that sets up and the left-hand screw thread and the right-hand screw thread of its circumference surface for the device only needs control servo motor to work, can drive sand table bench and reciprocate, not only simple structure, convenient operation moreover.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the sand table of the present utility model;

FIG. 3 is a schematic view of the structure of the base of the present utility model;

fig. 4 is a schematic structural view of the threaded rod of the present utility model.

Wherein: 11. a base; 12. a fixed block; 13. rectangular grooves; 14. a servo motor; 15. a threaded rod; 16. a limiting ring; 21. a sand table; 22. a fixing seat; 24. a lifting rod; 25. a blind; 26. u-shaped frame.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.

As shown in figures 1, 2, 3 and 4, the sand table convenient for height adjustment comprises a sand table 21, curtains 25 are arranged on four sides of the lower end of the sand table 21, a fixed seat 22 is fixedly arranged at the lower end of the sand table 21, the fixed seat 22 is in an inverted U shape, two lifting rods 24 are hinged between the inner walls of the fixed seat 22, a base 11 is arranged at the lower end of the sand table 21, a rectangular groove 13 is formed at the upper end of the base 11, a fixed block 12 is fixedly arranged in the middle of the inner wall of the rectangular groove 13 formed in the base 11, when the sand table 21 in the device is in exhibition, a servo motor 14 can be controlled to work through a PLC control module, at the moment, the servo motor 14 drives a threaded rod 15 to rotate through an output shaft, threads of the left side section and the right side section of the threaded rod 15 are respectively in a left-handed thread and a right-handed thread, at the moment, the rotation of the threaded rod 15 drives two U-shaped frames 26 to move relatively, when the two U-shaped frames 26 move relatively, the lower ends of the two lifting rods 24 move relatively, the two lifting rods 24 are hinged with the two U-shaped frames 26 and hinged with the fixed seat 22, so that the fixed seat 22 moves upwards in a state that the two lifting rods 24 move relatively, at the moment, the fixed seat 22 moves upwards to drive the sand table 21 to move upwards, thereby facilitating the sand table 21 to be suitable for people with different heights to watch, and if the sand table 21 needs to be lowered, the sand table 21 can be lowered by reversing the servo motor 14, the side end of the fixed block 12 penetrates through a middle-shaped hole, the middle-shaped hole formed in the fixed block 12 is rotationally sleeved with the limiting ring 16, the side end of the limiting ring 16 penetrates through and is fixedly provided with the threaded rod 15, the right side end of the threaded rod 15 is fixedly provided with the servo motor 14, the circumferential surfaces of two side sections of the threaded rod 15 are respectively provided with the U-shaped frames 26 through threads, two U-shaped frames 26 equal slidable mounting are in the rectangle groove 13 that base 11 was seted up, and two U-shaped frames 26 upper ends are articulated with two lifter 24 respectively, the utility model discloses a mechanism that can adjust sand table bench 21 goes up and down that sets up for the device can be adjusted sand table bench 21 according to the height of crowd in the exhibition hall, thereby makes sand table bench 21 can adapt to different crowd and watch, great improvement the practicality of sand table bench 21, the utility model discloses a threaded rod 15 that sets up and the left-hand thread and the right-hand thread of its circumference surface for the device only need control servo motor 14 to work, can drive sand table bench 21 and reciprocate, simple structure not only, convenient operation moreover.

Working principle: the sand table bench 21 in the device can be through PLC control module control servo motor 14 when carrying out the exhibition, servo motor 14 just can drive threaded rod 15 through the output shaft and rotate this moment, and the left side section of threaded rod 15 and the screw thread of right side section are left-hand thread and right-hand thread respectively, the rotation of threaded rod 15 just can drive the removal that two U-shaped shelves 26 are relative this moment, when two U-shaped shelves 26 relative movement, the same can relative movement of lower extreme of two lifter 24, two lifter 24 are through the articulated with two U-shaped shelves 26 and with fixing base 22, make fixing base 22 can upwards move under the state of two lifter 24 relative movement, this moment fixing base 22 just can upwards move, thereby make things convenient for sand table bench 21 to look into the crowd of co-altitude, and if need reduce, only need reverse servo motor 14, sand table 21 just can reduce, the utility model discloses a mechanism that can adjust sand table 21 lift makes the device can be according to the same in the exhibition hall height and make the sand table 21 can not advance the screw thread with the utility model's device, thereby can be adjusted the height of the large scale bench 21 and can be adjusted by the screw thread with the screw thread of the device, the utility model has the height of the utility model can be adjusted by the height of the device and can be adjusted.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims (6)

1. The utility model provides a sand table convenient to height-adjusting, includes sand table platform (21), its characterized in that: the utility model discloses a sand table, including sand table (21), fixed block (12) are fixed in the middle of sand table (21), sand table (21) lower extreme four sides all are equipped with screen (25), sand table (21) lower extreme fixed seat (22) have, fixed seat (22) shape is the shape of falling U, it has two lifter (24) to articulate between fixing seat (22) inner wall, sand table (21) lower extreme is equipped with base (11), rectangular channel (13) have been seted up to base (11) upper end, fixed block (12) have in the middle of rectangular channel (13) inner wall that base (11) were seted up, well shape hole has been seted up in fixed block (12) side end penetration, spacing ring (16) have been cup jointed in the downthehole rotation of well shape that fixed block (12) were seted up.

2. A sand table for facilitating height adjustment according to claim 1, wherein: the side end of the limiting ring (16) is fixedly provided with a threaded rod (15) in a penetrating mode.

3. A sand table for facilitating height adjustment according to claim 2, wherein: a servo motor (14) is fixedly arranged at the right side end of the threaded rod (15).

4. A sand table for facilitating height adjustment according to claim 2, wherein: the circumferential surfaces of the two side sections of the threaded rod (15) are provided with U-shaped frames (26) in a penetrating mode through threads.

5. A sand table for facilitating height adjustment according to claim 4, wherein: the two U-shaped frames (26) are both slidably arranged in rectangular grooves (13) formed in the base (11).

6. A sand table for facilitating height adjustment according to claim 4, wherein: the upper ends of the two U-shaped frames (26) are respectively hinged with the two lifting rods (24).