Arch structure education demonstration device for civil engineering

Abstract

The utility model relates to the related technical field of education demonstration, in particular to an arch structure education demonstration device for civil engineering, which comprises a box body, a movable side frame is movably arranged at the top of the box body, an arc-shaped fixing frame is fixedly mounted on the movable side frame, and an arch body is arranged at the top of the box body. The arc-shaped fixing frame is provided with a rotating assembly for carrying out pressure testing on the arch body, the rotating assembly comprises an arc-shaped tooth block movably arranged at the top of the arc-shaped fixing frame, the top of the movable side frame is connected with a servo motor through a motor plate, and the output end of the servo motor is connected with a driving gear movably meshed with the arc-shaped tooth block through a rotating shaft; according to the utility model, the servo motor drives the driving gear to rotate, the driving gear is engaged to drive the arc-shaped tooth block to rotate at the top of the arc-shaped fixing frame, and the contact position of the electric telescopic rod and the arch body is adjusted, so that the arc-shaped pressure block at the bottom of the electric telescopic rod cooperates with the pressure sensor to carry out deformation demonstration on different positions of the arch body.

Description

Technical Field

[0001] The utility model relates to the technical field related to education demonstration, in particular to an arch structure education demonstration device for civil engineering. Background Art

[0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to the materials and equipment used, as well as the technical activities such as surveying, design, construction, maintenance, and repair, as well as the objects of engineering construction; that is, various engineering facilities built on the ground, underground, or on land, which directly or indirectly serve human life, production, military, and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, airports, offshore platforms, water supply and drainage, and protective projects. In civil engineering, it is necessary to study the stress characteristics of arch structures.

[0003] In the patent application number CN109115610A, the vertical and horizontal pressures on the arch are changed, and the horizontal and vertical displacements of the arch when subjected to pressure are quickly detected, so as to facilitate the test demonstration of the pressure of the arch structure to students and facilitate students to conduct arch structure design research. However, this patent can only perform force tests in the vertical and horizontal directions, and cannot perform pressure demonstrations at different positions around the top of the arch, resulting in a relatively poor arch pressure demonstration effect. Moreover, the pressure demonstration can only be performed on the fixed curved surface of the arch top, resulting in a relatively simple educational demonstration. In this regard, we propose an arch structure educational demonstration device for civil engineering. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an arch structure educational demonstration device for civil engineering.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: comprising a box body, wherein a movable side frame is movably provided on the top of the box body, an arc-shaped fixing frame is fixedly installed on the movable side frame, an arch body is provided on the top of the box body, and the arc-shaped fixing frame is provided with a rotating assembly for pressure testing the arch body, the rotating assembly comprises an arc-shaped tooth block movable on the top of the arc-shaped fixing frame, the top of the movable side frame is connected to a servo motor through a motor plate, the output end of the servo motor is connected to a driving gear movably meshed with the arc-shaped tooth block through a rotating shaft, the arc-shaped tooth block is connected to an electric telescopic rod through a support plate on a side away from the servo motor, the bottom of the electric telescopic rod is connected to an arc-shaped pressure block, and the arc-shaped pressure block is provided with a pressure sensor;

[0006] A positioning assembly for clamping and fixing the arch body is provided on the top of the box body, and the positioning assembly includes a base plate installed on the top of the box body.

[0007] Preferably, a fixed slide groove is provided on the top of the arc-shaped fixing frame, and a fixed slider is slidably connected to the arc-shaped fixing frame in the fixed slide groove, and the top end of the fixed slider is fixedly mounted on the arc-shaped tooth block.

[0008] Preferably, a T-shaped slide groove is provided on the top of the box body, and the box body is slidably connected with a T-shaped slider in the T-shaped slide groove, and the top end of the T-shaped slider is fixedly installed at the bottom of the arc-shaped fixing frame.

[0009] Preferably, the base plate is threadedly connected with a positioning screw, and a positioning plate is fixedly installed at one end of the positioning screw close to the arch body, and a rotating disk is fixedly installed at the other end of the positioning screw. A telescopic support rod is fixedly installed between the positioning plate and the base plate by bolts, and the arch body is located at the bottom center of the arc-shaped fixing frame.

[0010] Preferably, universal rollers and adjustable supporting feet are fixedly installed around the bottom of the box body by bolts, and the box body is connected to a door with a handle through a hinge joint.

[0011] Preferably, the arc-shaped fixing frame is fixedly mounted with three groups of the support plates, and the driving gear is located at the top center of the arc-shaped fixing frame.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The servo motor drives the active gear to rotate. The active gear meshes and drives the arc-shaped gear block to rotate on the top of the arc-shaped fixed frame. The contact position between the electric telescopic rod and the arch is adjusted, so that the arc-shaped pressure block at the bottom of the electric telescopic rod cooperates with the pressure sensor to demonstrate the deformation of different positions of the arch.

[0014] 2. The entire movable side frame is adjusted to move horizontally in a direction perpendicular to the arch through the T-shaped slide and T-shaped slider on the top of the box. The electric telescopic rod and arc-shaped pressure block are adjusted to display pressure at different positions of the arch in the horizontal direction, making the educational demonstration of arch pressure comprehensive and greatly improving the effect of the educational demonstration.

[0015] 3. The electric telescopic rod connected by the arc-shaped gear block cooperates with the pressure sensor to demonstrate the pressure at different positions of the arch. The pressure sensor is used to record and observe the critical pressure value of deformation at different positions of the arch, which has a good educational demonstration effect for students. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the arc-shaped fixing frame of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the movable side frame of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the arc-shaped gear block of the utility model;

[0020] Figure 5 This is a structural diagram of the base plate of the utility model.

[0021] Among them: 10. Box body; 11. Arch body; 12. Base plate; 13. T-shaped slide; 14. T-shaped slider; 15. Positioning screw; 16. Positioning plate; 17. Rotating disk; 18. Telescopic support rod; 20. Movable side frame; 21. Arc-shaped fixed frame; 22. Motor plate; 23. Servo motor; 24. Driving gear; 25. Fixed slide; 26. Fixed slider; 30. Arc-shaped gear block; 31. Electric telescopic rod; 32. Arc-shaped pressure block; 33. Pressure sensor; 34. Support plate; 40. Universal roller; 41. Adjustable support foot; 42. Box door. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making creative work are all within the scope of protection of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are all conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can be obtained from commercial channels.

[0023] Example: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, it includes a box body 10, a movable side frame 20 is movably provided on the top of the box body 10, and an arc-shaped fixing frame 21 is fixedly installed on the movable side frame 20, an arch body 11 is provided on the top of the box body 10, and the arc-shaped fixing frame 21 is provided with a rotating assembly for pressure testing the arch body 11, and the rotating assembly includes an arc-shaped tooth block 30 that moves on the top of the arc-shaped fixing frame 21, and the top of the movable side frame 20 is connected to a servo motor 23 through a motor plate 22, and the output end of the servo motor 23 is connected to a driving gear 24 that movably engages with the arc-shaped tooth block 30 through a rotating shaft, and the arc-shaped tooth block 30 is connected to an electric telescopic rod 31 through a support plate 34 on the side away from the servo motor 23, and the bottom of the electric telescopic rod 31 is connected to an arc-shaped pressure block 32, and the arc-shaped pressure block 32 is provided with a pressure sensor 33, and a positioning assembly for clamping and fixing the arch body 11 is provided on the top of the box body 10, and the positioning assembly includes a base plate 12 installed on the top of the box body 10.

[0024] The arc-shaped tooth block 30 is driven to rotate on the top periphery of the arch body 11 by meshing the driving gear 24. The electric telescopic rod 31 and the arc-shaped pressure block 32 are adjusted to demonstrate pressure at different positions of the arch body 11. The arc-shaped pressure block 32 is used to apply pressure to different positions of the arch body 11. The pressure sensor 33 records the pressure value of the deformation of the arch body 11 at different positions. The arch body 11 is a teaching model and has rebound performance. When the pressure test deforms the arch body 11, it can be reset. The degree of deformation of the arch body 11 is observed through education.

[0025] See Figure 1 、 Figure 2 and Figure 5 A fixed groove 25 is provided at the top of the arc-shaped fixing frame 21, and a fixed slider 26 is slidably connected to the arc-shaped fixing frame 21 in the fixed groove 25. The top of the fixed slider 26 is fixedly mounted on the arc-shaped tooth block 30. A T-shaped groove 13 is provided at the top of the box body 10, and a T-shaped slider 14 is slidably connected to the box body 10 in the T-shaped groove 13. The top of the T-shaped slider 14 is fixedly mounted at the bottom of the arc-shaped fixing frame 21.

[0026] When the driving gear 24 engages and drives the arc-shaped tooth block 30 to move, the arc-shaped tooth block 30 realizes stable and smooth rotational motion through the fixed slide 25 and the fixed slider 26, adjusts the position between the arc-shaped pressure block 32 and the arch body 11, and adjusts the arc-shaped fixed frame 21 to move in the vertical direction of the arch body 11 through the T-shaped slide 13 and the T-shaped slider 14.

[0027] See Figure 1 、 Figure 3 and Figure 5The base plate 12 is threadedly connected to a positioning screw 15, and a positioning plate 16 is fixedly installed on one end of the positioning screw 15 close to the arch body 11. A rotating disk 17 is fixedly installed on the other end of the positioning screw 15. A telescopic support rod 18 is fixedly installed between the positioning plate 16 and the base plate 12 by bolts, and the arch body 11 is located at the bottom center of the arc-shaped fixing frame 21.

[0028] The positioning screw 15 is driven by the rotating disk 17 to cooperate with the telescopic support rod 18 to push the positioning plate 16 , and the arch 11 is positioned at the bottom of the arc-shaped fixing frame 21 by using the positioning plate 16 .

[0029] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4 Universal rollers 40 and adjustable support feet 41 are fixed around the bottom of the box body 10 by bolts. The box body 10 is connected to a door 42 with a handle through a hinged joint. Three sets of support plates 34 are fixedly installed on the arc-shaped fixing frame 21. The driving gear 24 is located at the top center of the arc-shaped fixing frame 21.

[0030] The box 10 is moved and fixed by the universal roller 40 in conjunction with the adjustable support foot 41 , and the arch 11 is subjected to pressure education and demonstration by multiple groups of support plates 34 , electric telescopic rods 31 , arc-shaped pressure blocks 32 and pressure sensors 33 .

[0031] Working principle: Place the arch 11 between the base plates 12, operate the rotating disk 17 to drive the positioning screw 15 and cooperate with the telescopic support rod 18 to push the positioning plate 16, and use the positioning plate 16 to position the arch 11 at the bottom of the arc-shaped fixing frame 21. The electric telescopic rod 31 connected by the arc-shaped gear block 30 cooperates with the pressure sensor 33 to demonstrate the pressure at different positions of the arch 11. The pressure sensor 33 is used to record and observe the pressure critical value of deformation at different positions of the arch 11, which has a good educational demonstration effect for students;

[0032] The servo motor 23 drives the driving gear 24 to rotate, and the driving gear 24 engages and drives the arc-shaped gear block 30 to rotate on the top of the arc-shaped fixed frame 21, adjusting the contact position between the electric telescopic rod 31 and the arch 11, so that the arc-shaped pressure block 32 at the bottom of the electric telescopic rod 31 cooperates with the pressure sensor 33 to demonstrate the deformation of different positions of the arch 11;

[0033] The entire movable side frame 20 is adjusted to move horizontally in a direction perpendicular to the arch body 11 through the T-shaped slide 13 and the T-shaped slider 14 on the top of the box body 10, and the electric telescopic rod 31 and the arc-shaped pressure block 32 are adjusted to display the pressure at different positions of the arch body 11 in the horizontal direction, so that the educational demonstration range of the pressure on the arch body 11 is comprehensive, greatly improving the effect of the educational demonstration.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. An arch structure educational demonstration device for civil engineering, comprising a box (10), characterized in that: The top of the box body (10) is provided with a movable side frame (20) through movement, and the movable side frame (20) is fixedly installed with an arc-shaped fixed frame (21). The top of the box body (10) is provided with an arch body (11), and the arc-shaped fixed frame (21) is provided with a rotating assembly for performing pressure testing on the arch body (11), and the rotating assembly includes an arc-shaped tooth block (30) that moves on the top of the arc-shaped fixed frame (21). The top of the movable side frame (20) is connected to a servo motor (23) through a motor plate (22), and the output end of the servo motor (23) is connected to a driving gear (24) that is movably engaged with the arc-shaped tooth block (30) through a rotating shaft. The arc-shaped tooth block (30) is connected to an electric telescopic rod (31) through a support plate (34) on a side away from the servo motor (23). The bottom of the electric telescopic rod (31) is connected to an arc-shaped pressure block (32), and the arc-shaped pressure block (32) is provided with a pressure sensor (33); A positioning assembly for clamping and fixing the arch body (11) is provided on the top of the box body (10), and the positioning assembly includes a base plate (12) installed on the top of the box body (10).

2. The arch structure educational demonstration device for civil engineering according to claim 1, characterized in that: A fixed slide groove (25) is provided at the top of the arc-shaped fixing frame (21), and a fixed slider (26) is slidably connected to the arc-shaped fixing frame (21) in the fixed slide groove (25). The top end of the fixed slider (26) is fixedly mounted on the arc-shaped tooth block (30).

3. The arch structure educational demonstration device for civil engineering according to claim 1, characterized in that: A T-shaped slide groove (13) is provided on the top of the box body (10), and a T-shaped slider (14) is slidably connected to the box body (10) in the T-shaped slide groove (13), and the top end of the T-shaped slider (14) is fixedly mounted on the bottom of the arc-shaped fixing frame (21).

4. The arch structure educational demonstration device for civil engineering according to claim 1, characterized in that: The base plate (12) is threadedly connected with a positioning screw (15), and a positioning plate (16) is fixedly installed at one end of the positioning screw (15) close to the arch body (11). A rotating disk (17) is fixedly installed at the other end of the positioning screw (15). A telescopic support rod (18) is fixedly installed between the positioning plate (16) and the base plate (12) by bolts, and the arch body (11) is located at the bottom center of the arc-shaped fixing frame (21).

5. The arch structure educational demonstration device for civil engineering according to claim 1, characterized in that: Universal rollers (40) and adjustable support feet (41) are fixedly mounted on the four sides of the bottom of the box body (10) by means of bolts. The box body (10) is connected to a door (42) with a handle by means of a hinged joint.

6. The arch structure educational demonstration device for civil engineering according to claim 1, characterized in that: The arc-shaped fixing frame (21) is fixedly mounted with three groups of support plates (34), and the driving gear (24) is located at the top center of the arc-shaped fixing frame (21).

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