CN209248867U - A portable fluid mechanics experiment bench - Google Patents

Abstract

A fluid mechanics experiment table that is easy to move, including a base (1), the base (1) is a hollow structure, a moving plate (2) is arranged horizontally inside the base (1), and the four corners of the lower end of the moving plate (2) are fixed Universal wheels (3) are provided, and through holes are provided at the lower end of the base (1) corresponding to the positions of the four universal wheels (3), and a U-shaped block ( 4), the inside of the base (1) is located above the moving plate (2) and a two-way screw (5) is installed horizontally, and the outer wall of the base (1) is fixed at the position corresponding to the position of the two-way screw (5). A first motor (6) is fixed inside the case. The utility model is convenient to move the test bench, and can also complete the height adjustment of the test bench at the same time, thereby improving the practicability of the fluid mechanics test bench.

Description

A portable fluid mechanics experiment bench

technical field

The utility model relates to the technical field of fluid mechanics experiment benches, in particular to a fluid mechanics experiment bench which is easy to move.

Background technique

Fluid mechanics involves a wide range of related experiments, including Reynolds experiments, along-path loss experiments, and local loss experiments. With the increase of courses related to fluid mechanics, the importance of its experimental teaching has been gradually strengthened.

However, most of the existing fluid mechanics test benches are placed on the floor, and there are many experimental equipment on the test bench, which makes it difficult to move the fluid mechanics test bench. Therefore, the utility model has designed a kind of hydrodynamics experiment table that is convenient to move.

Utility model content

The purpose of this utility model is to solve the problem that most of the fluid mechanics test benches in the prior art are placed on the ground, and there are many experimental equipments on the test bench, which makes it difficult to move the fluid mechanics test bench. A fluid mechanics test bench that is easy to move.

In order to achieve the above object, the utility model adopts the following technical solutions:

A fluid mechanics experiment platform that is easy to move, comprising a base, the base is a hollow structure, a moving plate is arranged horizontally inside the base, universal wheels are fixed at the four corners of the lower end of the moving plate, the base The lower end of the base is provided with through holes corresponding to the positions of the four universal wheels, a U-shaped block is fixed at the center of the upper end of the moving plate, and a two-way screw rod is arranged horizontally above the moving plate inside the base. , the outer wall of the base corresponds to the position of the two-way screw is fixed with a motor box, the inside of the motor box is fixed with a first motor, one end of the two-way screw runs through the connection between the base and the motor box and is connected to the second The output end of a motor is fixedly connected, and both sides of the rod wall of the two-way screw are provided with moving blocks, and the side walls of the two moving blocks are respectively connected to the two sides of the rod wall of the two-way screw through two internally threaded holes with opposite helical directions. Side threaded connection, the lower ends of the two moving blocks are rotatably connected to the rotating rod through the first pivot pin, and the other ends of the two rotating rods are rotatably connected to the inner wall of the U-shaped block through the second pivot pin , the upper part of the base is provided with a liftable test bench.

Preferably, the center of the lower end of the test bench is fixed with an internally threaded sleeve, the internal thread of the internally threaded sleeve is connected with a first screw, and the lower end of the first screw is connected to the base through the first rolling bearing. The center of the upper end is rotationally connected, the first bevel gear is fixedly provided on the lower side of the rod wall of the first screw rod, and the upper end of the base is fixedly provided with a second motor on one side of the first screw rod, and the second motor The output end of the rotating shaft is fixedly provided with a rotating shaft, and the end of the rotating shaft is fixedly provided with a second bevel gear meshed with the first bevel gear, and the four corners of the lower end of the test bench are fixedly provided with first support rods, and the four The lower ends of the first support rods are provided with second support rods, the upper ends of the four second support rods are provided with blind holes, and the lower ends of the four first support rods extend to the corresponding second support rods. Inside, the rod walls of the four second support rods are threadedly connected with second screw rods through threaded holes, and the four first support rods and the second support rods are all tightly connected by second screw rods .

Preferably, a handle is fixed at the end of the second screw rod away from the second support rod.

Preferably, shock absorbing pads are fixed at the four corners of the lower end of the base.

Preferably, both sides inside the base are vertically fixed with sliding rods, and the upper ends of the moving plates are slidingly connected to the rod walls of the two sliding rods through sliding holes.

Preferably, one end of the two-way screw located inside the base is rotatably connected to the inner side wall of the base through a second rolling bearing.

Compared with the prior art, the utility model provides an easy-to-move fluid mechanics test bench, which has the following beneficial effects:

1. The fluid mechanics test bench that is easy to move, through the first motor installed inside the motor box, the first motor can drive the two-way screw to rotate, and the two-way screw can make the two moving blocks move relatively close to each other, and the two moving blocks move relatively close to each other And the moving board is pushed down by two rotating rods, so that the four universal wheels at the lower end of the moving board can be pushed out from the inside of the base and the base is propped up, thereby facilitating the movement of the test bench.

2. The fluid mechanics test bench that is easy to move, through the second motor installed on the base, the second motor can drive the rotating shaft to rotate, and the rotating shaft can drive the first screw to rotate through the cooperation of the first bevel gear and the second bevel gear. The first screw rod can spirally push the inner threaded sleeve to raise the test bench, and by controlling the reverse rotation of the second motor, the test bench can be moved downward, thereby completing the height adjustment of the test bench.

The parts not involved in the device are the same as the existing technology or can be realized by using the existing technology. The utility model facilitates the movement of the test bench, and can also complete the height adjustment of the test bench, which improves the practicality of the fluid mechanics test bench. sex.

Description of drawings

Fig. 1 is the structural representation of a kind of hydrodynamics experiment table that is convenient to move that the utility model proposes;

FIG. 2 is a structural schematic diagram of the connection between the first support rod and the second support rod in FIG. 1 .

In the figure: 1 base, 2 moving plate, 3 universal wheel, 4 U-shaped block, 5 two-way screw, 6 first motor, 7 moving block, 8 test bench, 9 internal thread sleeve, 10 first screw rod, 11 First bevel gear, 12 second motors, 13 rotating shafts, 14 second bevel gears, 15 first support rods, 16 second support rods, 17 second screw mandrels, 18 handles, 19 slide rods, 20 rotating rods.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

In describing the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation , are constructed and operated in a specific orientation and therefore cannot be construed as limiting the invention.

Referring to Fig. 1-2, a fluid mechanics experiment bench that is easy to move includes a base 1, the base 1 is a hollow structure, the interior of the base 1 is horizontally provided with a moving plate 2, and the four corners of the lower end of the moving plate 2 are fixed with universal Wheel 3, the lower end of the base 1 is provided with through holes corresponding to the positions of the four universal wheels 3, a U-shaped block 4 is fixed at the center of the upper end of the moving plate 2, and the interior of the base 1 is located above the moving plate 2 in the horizontal direction. A two-way screw 5 is provided, and a motor box is fixed at the position corresponding to the outer wall of the base 1 and the position of the two-way screw 5. The inside of the motor box is fixed with a first motor 6, and one end of the two-way screw 5 runs through the connection between the base 1 and the motor box. and is fixedly connected with the output end of the first motor 6, one end of the two-way screw 5 located inside the base 1 is rotationally connected with the inner side wall of the base 1 through the second rolling bearing, and both sides of the rod wall of the two-way screw 5 are provided with moving blocks 7, The side walls of the two moving blocks 7 are threadedly connected to both sides of the rod wall of the two-way screw 5 through two internally threaded holes with opposite helical directions, and the lower ends of the two moving blocks 7 are connected to the rotating rod 20 through the first pivot pin. , the other ends of the two rotating rods 20 are rotatably connected with the relative inner sidewall of the U-shaped block 4 through the second pivot pin, and a liftable test bench 8 is provided above the base 1, and the four corners of the lower end of the base 1 are fixedly installed. There is a shock absorber, and both sides of the interior of the base 1 are vertically fixed with slide bars 19, and the upper end of the moving plate 2 is slidably connected with the rod walls of the two slide bars 19 through sliding holes, which can increase the stability of the moving plate 2 sex.

The center of the lower end of the test bench 8 is fixed with an internally threaded sleeve 9, and the internal thread of the internally threaded sleeve 9 is connected with a first screw 10. The lower end of the first screw 10 is connected to the center of the upper end of the base 1 through the first rolling bearing. Rotate connection, the rod wall lower side of the first screw mandrel 10 is fixedly provided with the first bevel gear 11, and the upper end of base 1 is positioned at the side of the first screw mandrel 10 and is fixedly provided with the second motor 12, and the first motor 6 and the second The motors 12 are electrically connected to the external power supply through control switches. This technology is widely used in daily life. Those skilled in the art should know that the output end of the second motor 12 is fixedly provided with a rotating shaft 13 , the end of the rotating shaft 13 is fixedly provided with the second bevel gear 14 meshed with the first bevel gear 11, the four corners of the lower end of the test bench 8 are fixed with the first support rods 15, and the lower ends of the four first support rods 15 are all fixed. A second support rod 16 is provided, the upper ends of the four second support rods 16 are provided with blind holes, the lower ends of the four first support rods 15 extend to the inside of the corresponding second support rods 16, and the four second support rods The rod walls of 16 are all threadedly connected with the second screw mandrel 17 through the threaded holes, all are fastened and connected by the second screw mandrel 17 between the four first support rods 15 and the second support rods 16, and the second screw mandrel 17 is away from the first screw mandrel 17. One end of the two support rods 16 is fixedly provided with a handle 18, and when the height of the test bench 8 is adjusted, the handle 18 is turned to fix between the first support rod 15 and the second support rod 16.

In the utility model, when in use, the first motor 6 can drive the two-way screw 5 to rotate through the first motor 6 arranged inside the motor box, and the two-way screw 5 can make the two moving blocks 7 move relatively close to each other, and the two moving blocks 7 Move relatively close and push the moving plate 2 down through the two rotating rods 20, so that the four universal wheels 3 at the lower end of the moving plate 2 can be pushed out from the inside of the base 1 and the base 1 is propped up, which is convenient for the test bench 8 to move, through the second motor 12 arranged on the base 1, the second motor 12 can drive the rotating shaft 13 to rotate, and the rotating shaft 13 can drive the first screw mandrel 10 to rotate through the cooperation of the first bevel gear 11 and the second bevel gear 14 , the first screw mandrel 10 can screw up the internally threaded sleeve 9, so that the test bench 8 can be raised, and by controlling the second motor 12 to rotate in reverse, the test bench 8 can be moved downward, and then the test bench can be completed. 8 height adjustments.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. An easy-to-move fluid mechanics experiment bench, comprising a base (1), characterized in that the base (1) is a hollow structure, and a moving plate (2) is arranged laterally inside the base (1), so The four corners of the lower end of the moving plate (2) are fixed with universal wheels (3), and the lower end of the base (1) is provided with through holes corresponding to the positions of the four universal wheels (3). A U-shaped block (4) is fixed at the center of the upper end of the moving plate (2), and a two-way screw (5) is arranged horizontally above the moving plate (2) inside the base (1), and the base ( 1) A motor box is fixed at the position corresponding to the position of the outer wall of the two-way screw (5), and the inside of the motor box is fixed with a first motor (6), and one end of the two-way screw (5) runs through the base (1 ) and the connection of the motor box and is fixedly connected with the output end of the first motor (6), the two-way screw (5) is provided with moving blocks (7) on both sides of the rod wall, and the two moving blocks (7) ) side walls are threadedly connected to both sides of the rod wall of the bidirectional screw (5) through two internally threaded holes with opposite helical directions, and the lower ends of the two moving blocks (7) are connected with a rotating shaft through the first shaft pin. Rod (20), the other ends of the two rotating rods (20) are rotatably connected to the inner side wall of the U-shaped block (4) through the second pivot pin, and the upper part of the base (1) is provided with a liftable The experimental bench (8). 2. A fluid mechanics experiment bench that is easy to move according to claim 1, characterized in that, an internal thread sleeve (9) is fixed at the center of the lower end of the experiment bench (8), and the internal thread sleeve The inner thread of the cylinder (9) is connected with a first screw rod (10), and the lower end of the first screw rod (10) is rotationally connected with the center of the upper end of the base (1) through a first rolling bearing, and the first screw rod The lower side of the rod wall of (10) is fixed with a first bevel gear (11), and the upper end of the base (1) is located on one side of the first screw rod (10) and is fixed with a second motor (12). The output end of the second motor (12) is fixedly provided with a rotating shaft (13), and the end of the rotating shaft (13) is fixedly provided with a second bevel gear (14) meshing with the first bevel gear (11). The four corners of the lower end of the platform (8) are fixed with first support rods (15), the lower ends of the four first support rods (15) are all provided with second support rods (16), and the four second The upper ends of the support rods (16) are provided with blind holes, the lower ends of the four first support rods (15) extend to the inside of the corresponding second support rods (16), the four second support rods The rod walls of (16) are all threadedly connected with the second screw rod (17) through the threaded hole, and the four first support rods (15) and the second support rods (16) are all passed through the second screw rod (17). ) tight connection. 3 . The fluid mechanics experiment bench that is easy to move according to claim 2 , characterized in that, a handle ( 18 ) is fixed at the end of the second screw rod ( 17 ) away from the second support rod ( 16 ). 4. A fluid mechanics experiment bench that is easy to move according to claim 1, characterized in that shock absorbing pads are fixed at the four corners of the lower end of the base (1). 5. A fluid mechanics test bench that is easy to move according to claim 1, characterized in that, both sides inside the base (1) are vertically fixed with sliding bars (19), and the moving plate ( 2) The upper ends are slidingly connected with the rod walls of the two sliding rods (19) through sliding holes. 6. A fluid mechanics experiment bench that is easy to move according to claim 1, characterized in that, one end of the two-way screw (5) located inside the base (1) passes through the second rolling bearing and the inner side wall of the base (1) Turn to connect.