CN204904705U - Appearance is gone up and down to demonstrate in high stable transmission - Google Patents

Abstract

The utility model discloses an appearance is gone up and down to demonstrate in high stable transmission, including the base, base upper portion installation second connecting rod, the lower extreme of second connecting rod is articulated with the base, the upper end installation fixed plate of second connecting rod, the lower part of fixed plate is articulated with the second connecting rod, the mid -mounting head rod of second connecting rod, the utility model provides a can the high demonstration appearance of freedom adjustment. The utility model discloses a suitable position can be adjusted to through the rotatory slider that promotes to the lead screw, and then adjusts to suitable height with the fixed plate to make things convenient for the teacher to demonstrate the teaching mode to the student.

Description

A High Stability Transmission Lift Demonstration Instrument

technical field

The utility model relates to a demonstrator, more precisely a highly stable transmission lifting demonstrator.

Background technique

Teaching is a human-specific talent training activity composed of teachers' teaching and students' learning. Through this activity, teachers guide students to actively and consciously learn and accelerate the acquisition of basic cultural and scientific knowledge and Basic skills can promote the comprehensive improvement of students' various qualities, so that they can become the people needed by the society. Teachers often need to show students the teaching models during the teaching process. Because the teacher's desk will be placed on the side of the desktop in order to prevent the chalk from falling Setting up the protective plate is not conducive to displaying the teaching model. The existing method is only to use pads to support the teaching model. The pads cannot adjust the height, which is inconvenient to display the teaching model. In the middle of the instrument, the lifting demonstration instrument is prone to instability during the adjustment process using the screw rod.

Contents of the invention

The purpose of the utility model is to provide a highly stable transmission lifting demonstration instrument, which can solve the above problems.

In order to achieve the above object, the utility model is realized through the following technical solutions: the high-stable transmission lifting demonstrator includes a base, a second connecting rod is installed on the upper part of the base, the lower end of the second connecting rod is hinged with the base, and the upper end of the second connecting rod is installed and fixed plate, the lower part of the fixed plate is hinged with the second connecting rod, the middle part of the second connecting rod is installed with the first connecting rod, the middle part of the first connecting rod is hinged with the middle part of the second connecting rod, and the upper end of the first connecting rod is hinged with the fixed plate , the lower part of the first connecting rod is equipped with a slider, the slider is hinged with the first connecting rod, the upper part of the base is provided with a chute, the slider is matched with the chute, the slider can slide in the chute, and the connecting plate is installed on one side of the base , the connecting plate is located on one side of the chute, the first screw hole is opened horizontally on the connecting plate, a screw is installed in the first screw hole, a bearing is installed at one end of the screw, the inner ring of the bearing is connected with the screw, and the outer ring of the bearing is connected with the sliding block, and the other end of the screw rod is equipped with a handle.

In order to further realize the purpose of the utility model, the following technical solutions can also be adopted: several connection blocks are installed on the bottom of the base, the middle part of the connection block offers a second screw hole, a screw rod is installed in the second screw hole, and a pad is installed at the lower end of the screw rod piece. A non-slip pad is installed at the bottom of the pad.

The utility model has the advantages that: the utility model provides a demonstration instrument that can freely adjust the height, the screw rod of the utility model is directly connected with the base through the connecting plate, which greatly improves the stability of the screw rod rotation, the utility model The screw rod can be adjusted to an appropriate position by rotating the sliding block, and then the fixing plate can be adjusted to an appropriate height, so that it is convenient for the teacher to show the teaching model to the students. The hinged connection between the first connecting rod and the second connecting rod of the utility model can facilitate the first connection The horizontal displacement of the lower part of the rod is converted into the vertical height of the first connecting rod and the second connecting rod. The bearing of the utility model can facilitate the rotation of the screw rod while ensuring the connection between the screw rod and the slider. The handle of the utility model can facilitate the teacher The screw rod can be rotated without using tools. The anti-skid plate of the utility model can prevent the teaching model from sliding on the fixed plate. The utility model also has the advantages of simple and compact structure, low manufacturing cost and easy use.

Description of drawings

Figure 1 is a schematic structural diagram of a high-stability transmission lifting demonstration instrument.

Marked parts: 1 anti-skid block 2 anti-skid plate 3 fixed plate 4 first connecting rod 5 second connecting rod 6 bearing 7 slider 8 connecting plate 9 screw hole 10 screw rod 11 handle 12 chute 13 base 14 connecting block 15 screw hole 16 Screw rod 17 pads 18 anti-skid pads.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

The high-stability transmission lifting demonstrator, as shown in Figure 1, includes a base 13, a second connecting rod 5 is installed on the top of the base 13, the lower end of the second connecting rod 5 is hinged with the base 13, and a fixed plate 3 is installed on the upper end of the second connecting rod 5 , the bottom of the fixed plate 3 is hinged with the second connecting rod 5, the middle part of the second connecting rod 5 is equipped with the first connecting rod 4, the middle part of the first connecting rod 4 is hinged with the middle part of the second connecting rod 5, and the first connecting rod 4 The upper end of the base 13 is hinged with the fixed plate 3, the bottom of the first connecting rod 4 is equipped with a slide block 7, the slide block 7 is hinged with the first connecting rod 4, the top of the base 13 is provided with a chute 12, the slide block 7 cooperates with the chute 12, and slides Block 7 can slide in chute 12, and connecting plate 8 is installed on one side of base 13, and connecting plate 8 is positioned at chute 12 sides, and first screw hole 9 is offered horizontally on connecting plate 8, and wire is installed in the first screw hole 9. Rod 10, a bearing 6 is installed on one end of the screw mandrel 10, the inner ring of the bearing 6 is connected with the screw mandrel 10, the outer ring of the bearing 6 is connected with the slider 7, and the other end of the screw mandrel 10 is equipped with a handle 11.

The utility model provides a demonstration instrument that can freely adjust the height. The screw mandrel 10 of the utility model is directly connected with the base 13 through the connecting plate 8, which greatly improves the rotation stability of the screw mandrel 10. The screw mandrel 10 of the utility model The sliding block 7 can be adjusted to a suitable position by rotating, and then the fixed plate 3 can be adjusted to a suitable height, so as to facilitate the teacher to show the teaching model to the students. The first connecting rod 4 and the second connecting rod 5 of the utility model are hinged to facilitate the The horizontal displacement of the lower part of a connecting rod 4 is converted into the vertical height of the first connecting rod 4 and the second connecting rod 5, and the bearing 6 of the present utility model can facilitate the rotation of the screw rod 10 while ensuring that the screw rod 10 is connected with the slider 7 , the handle 11 of the utility model can facilitate the teacher to rotate the screw mandrel 10 without using tools, and the anti-skid plate 2 of the utility model can prevent the teaching model from sliding on the fixed plate 3 .

The bottom of described base 13 is installed several connecting blocks 14, and the middle part of connecting block 14 offers second screw hole 15, and screw rod 16 is installed in the second screw hole 15, and the lower end of screw rod 16 is installed pad 17, and screw rod 16 of the present utility model The length of the exposed second screw hole 15 can be adjusted through rotation, thereby adjusting the overall height of the high-stable transmission lifting demonstration instrument, which is convenient for the operator of the high-stable transmission lifting demonstration instrument to use.

The bottom of described pad 17 is installed anti-skid pad 18, and anti-skid pad 18 of the present utility model can increase the frictional force of high stability transmission lifting demonstration instrument and placement platform, avoids high stability transmission lifting demonstration instrument sliding on placement platform.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (3)

1. A high-stability transmission lifting demonstration instrument is characterized in that: it comprises a base (13), and a second connecting rod (5) is installed on the top of the base (13), and the lower end of the second connecting rod (5) is hinged to the base (13) , the upper end of the second connecting rod (5) is equipped with a fixed plate (3), the bottom of the fixed plate (3) is hinged with the second connecting rod (5), and the middle part of the second connecting rod (5) is installed with the first connecting rod (4 ), the middle part of the first connecting rod (4) is hinged with the middle part of the second connecting rod (5), the upper end of the first connecting rod (4) is hinged with the fixed plate (3), and the lower part of the first connecting rod (4) is installed Slide block (7), slide block (7) is hinged with first connecting rod (4), and the top of base (13) offers chute (12), slide block (7) cooperates with chute (12), slide block ( 7) Can slide in the chute (12), the side of the base (13) is equipped with a connecting plate (8), the connecting plate (8) is positioned at the side of the chute (12), and the connecting plate (8) is horizontally provided with the first Screw hole (9), screw mandrel (10) is installed in the first screw hole (9), and bearing (6) is installed at one end of screw mandrel (10), and the inner ring of bearing (6) is connected with screw mandrel (10), and bearing The outer ring of (6) connects slide block (7), and the other end of screw mandrel (10) handle (11) is installed. 2. A high-stability transmission lifting demonstration instrument according to claim 1, characterized in that: several connecting blocks (14) are installed on the bottom of the base (13), and a second screw is set in the middle of the connecting block (14). Hole (15), screw rod (16) is installed in the second screw hole (15), the lower end of screw rod (16) pad (17) is installed. 3. A high-stability transmission lifting demonstrator according to claim 2, characterized in that: an anti-skid mat (18) is installed on the bottom of the pad (17).