CN106308055A - Shear-type teacher's desk adopting synchronous belt for lifting adjustment - Google Patents

Abstract

The invention discloses a scissor-type podium table adopting a synchronous belt to adjust lifting, which comprises a podium table top, two sets of scissor-type telescopic rods arranged under the podium table top, and the tops of the two sets of scissor-type telescopic rods are embedded in the bottom of the podium table top. The inner and bottom ends of the groove are connected to the ball screw nut, and the ball screw nut is sheathed on the ball screw. The same side of the two ball screws is connected to a synchronous wheel. The two synchronous wheels are coaxially installed. A synchronous wheel is connected with a driving device, a synchronous belt is connected between the two synchronous wheels, the two ball screws and the driving device are all fixed on the base plate, and the bottom ends around the base plate are provided with rollers. The scissor-type telescopic rod is set and adjusted by the ball screw. On the one hand, the height of the support rod can be adjusted flexibly and mechanically. The mobile podium table meets the requirements of today's mobile lectures and teaching interaction. It has good practicability and is worthy of widespread promotion.

Description

Scissor podium table with synchronous belt adjustment

technical field

The invention relates to the technical field of teaching facilities, in particular to a scissor-type podium table that adopts a synchronous belt to adjust the lifting.

Background technique

With the acceleration of investment in modern education, more and more areas have begun to pay attention to primary and secondary education, and the podium table is generally placed on the teacher's podium for the teacher to put textbooks, chalk and other teaching utensils in class. It is the most basic in school teaching. One of the teaching aids. At present, most of the teachers are fixed podium tables, as shown in Figure 2, mainly composed of a base, a support rod, and a podium table top. The podium table can be moved, which is inconvenient and laborious, and cannot meet the needs of flexible teaching. At the same time, the height of the support rod is not adjustable, which cannot fully take into account the factors of the teacher's height. When a tall teacher is giving a lecture, he has to bow his head and look at it The textbooks on the podium table may cause cervical spondylosis if it is done for a long time. If a short teacher takes the chalk and other items placed on the podium table, he needs to stand on tiptoe or borrow auxiliary tools to achieve it, which is extremely inconvenient and laborious; second, The desktop of the podium is just a fixed desktop, which cannot meet the teaching requirements of close-distance teaching and guidance or the need to cooperate with hanging materials. It has a single function and poor practicability.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a scissor-type podium table that adopts a synchronous belt to adjust the lifting, which can be flexibly moved and adjusted in height, and has stable transmission, good mechanism performance, high stability, and good practical performance.

In order to achieve the above object, the technical scheme that the present invention takes:

The scissor-type podium table adopts the synchronous belt to adjust the lifting, including the podium table top. There are two sets of scissor-type telescopic rods under the podium table top. , and the top of the scissor-type telescopic rod can slide linearly in the groove, and the bottom ends of the two sets of scissor-type telescopic rods are connected to the ball screw nut, and the ball screw nut is sleeved on the ball screw connected with it. On the same side of the two ball screws are connected with a synchronous wheel, the two synchronous wheels are installed coaxially, and one of the synchronous wheels is connected with a driving device, and a synchronous belt is connected between the two synchronous wheels, and the two ball screws and the driving device are connected to each other. It is fixed on a base plate, and the bottom ends around the base plate are provided with a roller.

As an optimal technical solution, in order to meet the teaching requirements of close-distance teaching and guidance or the need to cooperate with hanging materials, it has multi-functional performance and improves the practicability of the podium table. A groove is provided at the lower end of the podium table, and a simple blackboard is installed in the groove. , and the rear side of the podium desktop is provided with a card slot that can vertically fix the simple blackboard.

As an optimal technical solution, in order to ensure that when the simple blackboard hangs the materials, the materials can be firmly held in the card slot, thereby improving the efficiency of teaching and the practicability of the podium table, the card slot is provided with all input pins.

As an optimal technical solution, in order to make the podium desktop have the functions of storage and dust collection, and at the same time ensure the cleanliness and comfort of the podium desktop, the podium desktop includes left and right desktops. There is a drawer for sundries.

As an optimal technical solution, in order to make full use of the space and facilitate taking out the contents of the drawer under the slide board, which is conducive to improving the practicability of the podium table as a whole, a slideway is provided in the left table top to allow the slide board to slide to the left table top.

As an optimal technical solution, in order to flexibly and conveniently pull out the slide board or drawer, and quickly pick up items, which is conducive to the smooth progress of teaching, pull rings are provided on one side of the slide board and the drawer.

As an optimal technical solution, in order to meet the teaching needs of the teacher's classroom and effectively utilize the space of the desk, the front side of the desk is provided with a through hole for placing a pointer.

Compared with the prior art, the present invention has the beneficial effects:

1. Set the scissor-type telescopic rod to change the existing defect of fixed and non-adjustable height, and adjust the height of the podium table flexibly and mechanically through the ball screw combined with the timing belt. At the same time, the scissor-type telescopic rod can be compressed and folded, changing the existing There is a defect that the podium table is large in size, small and portable, and easy to carry and store; there are four rollers at the bottom of the bottom plate, which can change the defect that the existing podium table can only be moved by transportation, and can move the position of the podium table flexibly and conveniently, satisfying At present, classroom teaching teachers require mobile lectures and teaching interaction, which is simple and practical.

2. The desktop of the podium is set scientifically and reasonably, changing the existing structure of only one fixed desktop, and adding a simple blackboard that can hang materials or teach at close distances to meet the teaching requirements for teaching at close distances or hanging materials. The skateboards and drawers make effective use of the podium and desk space as much as possible. It has multiple functions and good practicability.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of existing podium table;

Reference numerals: 1, podium desktop, 1-1, groove, 1-2, simple blackboard, 1-3, card slot, 1-4, left desktop, 1-5, right desktop, 1-6, skateboard, 1-7, drawer, 1-8, slideway, 1-9, cut-in pin, 1-10, through hole, 2, scissor type telescopic rod, 3, ball screw nut, 4, ball screw, 5, synchronization Wheel, 6, drive unit, 7, base plate, 8, roller, 9, synchronous belt, 10, foot brake.

detailed description

Propose a kind of specific embodiment of the present invention as shown in Figure 1, adopt the scissors type podium table of synchronous belt adjustment lift, comprise the podium table top 1 that is rectangular parallelepiped, the bottom of described podium table top 1 is provided with two groups of scissor type telescopic rods 2 The scissor-type telescopic rod 2 includes multiple groups of cross-shaped movable rods, and the adjacent movable rods are hinged to each other. The number of movable rod groups is reasonably set according to the height of the podium table and the length of the movable rods. This implementation For example, the height of the scissor telescopic rod 2 can be set up to 1.6m. The tops of the two sets of scissor telescopic rods 2 are embedded in the groove at the bottom of the podium desktop 1, and the top of the scissor telescopic rod 2 can be placed in the groove. Sliding in a straight line, the bottom ends of the two sets of scissor telescopic rods 2 are connected to the ball screw nut 3, and the ball screw nut 3 is sleeved on the ball screw 4 connected with it, that is, the same group of scissor telescopic rods The two ball screw nuts 3 connected by the rod 2 are set on the same ball screw 4, and one end of the same side of the two ball screws 4 is connected with a synchronous wheel 5, the two synchronous wheels 5 are coaxially installed, and one of the synchronous wheels 5 is connected There is a driving device 6, the present embodiment sets the driving device 6 as a motor, the synchronous wheel 5 is connected with the output shaft of the motor through a shaft coupling, a synchronous belt 9 is connected between the two synchronous wheels 6, and the two ball screws 4 and the driving device 6 -1 are all fixed on a base plate 7, in this embodiment, two ball screws 4 are fixed on the base plate 7 through a triangular fixed block, and the driving device 6-1 is fixed on the base plate 7 through a column, the base plate The bottom of 7 is provided with a roller 8. In this embodiment, the roller 8 is set as a universal wheel to ensure that it can move flexibly in all directions, ensure that the rolling of the roller 8 is stopped in time and stably, and ensure the stability of the podium table. Two rollers on the same side All be connected with steel wire rope between 8, all be provided with the foot brake 10 that can stop roller 8 from rolling on two steel wire ropes.

The lower end of the podium desktop 1 is provided with a groove 1-1, and a simple blackboard 1-2 is installed in the groove 1-1, and the rear side of the podium desktop 1 is provided with a card slot that can vertically fix the simple blackboard 1-2 1-3, the simple blackboard 1-2 can be fixed in the card slot 1-3 to meet the requirements of close-distance tutoring and teaching, or the simple blackboard 1-2 hanging drawings or other materials can be fixed in the card slot 1-3 to meet the needs of cooperation The teaching requirements of hanging materials, with multi-functional performance, improve the practicability of the podium table.

Described draw-in groove 1-3 is provided with all input pins 1-9, in order to guarantee that when simple and easy blackboard hangs data, data can be firmly in the draw-in groove 1-3, thereby improves the efficiency of teaching and the practicability of lectern table,.

Described podium desktop 1 comprises left desktop 1-4, right desktop 1-5, and described right desktop 1-5 is provided with a slide board 1-6, and this slide board 1-6 is provided with a sundries such as chalk, chalk brush below. The drawers 1-7 make the podium desktop have storage and dust collection functions, while ensuring the tidiness and comfort of the podium desktop 1.

The left desktop 1-1 is provided with a slideway 1-8 that allows the slide plate 1-6 to slide to the left desktop 1-1, and the slide plate is directly pushed to the left desktop 1-1 through the slideway, and the drawer 1 can be taken Items in -7 do not need to be pulled out from slide boards 1-6, the operation is simple, and it is convenient to take out the things in drawers 1-7, and at the same time make full use of the space of left desktop 1-1, and at the same time help to improve the practicability of the podium table as a whole.

On the slide 1-6, one side of the drawer 1-7 is provided with a pull ring, the setting of the pull ring can be flexible and convenient to pull out the slide 1-6 or the drawer 1-7, and can quickly take articles, which is conducive to the smooth teaching conduct.

The front side of described podium desktop 1 is provided with the through hole 1-10 that can place pointer, and pointer is the tool commonly used in lecturer's teaching, and the through hole 1-10 that can place pointer is set, and satisfies the teaching use of teacher's classroom on the one hand, simultaneously Effectively utilize the space of the podium desk and improve the performance of the podium desk.

When the present invention is used:

Before using the podium table, put the pointer in the through hole 1-10, put the simple blackboard 1-2 in the groove 1-1, put the common teaching supplies such as chalk box and chalk brush in the drawer 1-7, and put the driving device 6 -1 Turn on the power. When using the podium table, after the podium table can be moved to the ideal position through the roller 8, step on the foot brake 10 on the bottom plate 7, the roller 8 stops rolling, and the teacher can adjust the height of the scissor telescopic pole 2 according to his own height and habits If you feel that the height of the podium desktop 1 is relatively short or high, start the driving device 6, drive the synchronous wheel 5 connected with the driving device 6 to rotate, and drive the other synchronous wheel 5 to rotate through the synchronous belt 9, so that the two ball screws 4 are aligned Rotate to or in the opposite direction, and then make the two ball screw nuts 3 on it move toward each other or move backwards. If the two ball screw nuts 3 move toward each other, the scissor type telescopic rod 2 will be extended, that is, the height of the podium table will be raised. , the ball screw nut 3 moves backwards, and the scissor telescopic rod 2 is compressed, that is, the height of the podium table is lowered. After the height of the podium table is adjusted to the ideal height, the driving device 6 is turned off; The blackboard 1-2 is used for auxiliary teaching, the simple blackboard 1-2 is pulled out from the groove 1-1, placed in the card slot 1-3 to fix it and can be used; The lever nut 3 moves back to the most side end, and the two sets of scissor type telescopic rods 2 are completely compressed and folded, which is convenient for handling and storage.

Of course, the above is only a detailed description of the preferred specific implementation of the present invention in conjunction with the accompanying drawings, and is not intended to limit the scope of the present invention. All equivalent changes made according to the principle, structure and structure of the present invention should be covered by this within the scope of protection of the invention.

Claims (7)

1. use the scissors platform table of Timing Belt regulation lifting, including dais desktop (1), it is characterised in that: described dais desktop (1) lower section is provided with two groups of scissors expansion links (2), and the top of two groups of scissors expansion links (2) is all embedded in dais desktop (1) bottom In the groove offered and scissors expansion link 2 top can in groove linear slide, the bottom of two groups of scissors expansion links (2) is equal Being connected on ball-screw nut (3), described ball-screw nut (3) is sheathed on the ball-screw (4) being connected with it, Two ball-screws (4) homonymy one end is respectively connected with synchronization wheel (5), and two synchronize wheel (5) is co-axially mounted and wherein one synchronizes wheel (5) connection has driving means (6), and two synchronize to connect between wheel have a Timing Belt (9), two ball-screws (4) and driving means (6) Being both secured on a base plate (7), the bottom of this base plate (7) surrounding is equipped with a roller (8).

The scissors platform table of employing Timing Belt the most according to claim 1 regulation lifting, it is characterised in that: described platform table Face (1) lower end offers groove (1-1), and in this groove, (1-1) is provided with a Simple blackboard (1-2), and dais desktop (1) rear side Being provided with can be by draw-in groove (1-3) the most fixing for Simple blackboard (1-2).

The scissors platform table of employing Timing Belt the most according to claim 2 regulation lifting, it is characterised in that: described draw-in groove (1-3) an incision pin (1-9) it is provided with in.

The scissors platform table of employing Timing Belt the most according to claim 2 regulation lifting, it is characterised in that: described platform table Face (1) includes left and right desktop (1-4,1-5), is provided with a slide plate (1-that can place the articles for use such as chalk in described right desktop (1-5) 6), this slide plate (1-6) lower section is provided with a drawer (1-7) that can deposit foreign material.

The scissors platform table of employing Timing Belt the most according to claim 4 regulation lifting, it is characterised in that: described left desktop (1-4) slideway (1-8) that slide plate (1-6) can be allowed to slide into left desktop (1-4) it is provided with in.

The scissors platform table of employing Timing Belt the most according to claim 5 regulation lifting, it is characterised in that: described slide plate (1-6) upper, the side of drawer (1-7) is equipped with draw ring.

7., according to the scissors platform table using Timing Belt regulation lifting described in claim 1～6 any one, its feature exists In: it is provided with the through hole (1-10) that can place teacher's pointer in the front side at described dais desktop (1).