Rotatable pressure intensity display device

Abstract

The utility model relates to a rotatable pressure intensity display device which comprises a frame, elastic films are arranged on four sequentially adjacent surfaces of the frame, and transparent baffles are fixedly arranged on the other two opposite surfaces of the frame; the transparent baffle is connected to the side, close to the bottom, of the handheld rod through a transmission assembly. The transmission assembly comprises a transmission wheel set located on one side of the handheld rod, a transmission chain connected with the transmission wheel set and a rotating handle, the side, away from the handheld rod, of the transmission wheel set is fixedly connected with the transparent baffle, one end of the rotating handle is connected with one end of the transmission wheel set in the handheld rod, and the other end of the rotating handle extends out of the handheld rod. The transmission wheel set drives the frame to rotate by rotating the rotating handle; the air guide pipe communicates with the interior of the frame. The utility model provides a teaching demonstration device for demonstrating the internal pressure of liquid, which helps students to study and experience whether the liquid pressure is related to the depth or whether the pressures in all directions at the same depth are equal or not.

Description

Technical Field

[0001] This utility model relates to a teaching tool, and more particularly to a rotatable pressure display device. Background Technology

[0002] The purpose of junior high school physics is to cultivate students' scientific thinking, to give them a qualitative understanding of the physics common sense around them, and to apply it to life. The main purpose of learning physics knowledge is to use physics knowledge to explain various phenomena in life, and to use physics knowledge to analyze the causes of various problems, so as to find solutions and measures to solve related problems.

[0003] Currently, when helping students learn about the internal pressure of liquids, they not only need to explore the relationship between liquid pressure and depth, but also need to experience the changes in pressure in different directions at the same depth. However, current experiments related to the internal pressure of liquids are not very effective, and the related teaching tools are simple in structure, resulting in poor flexibility and inconvenience in use. They are also subject to many interfering factors, which is not conducive to students' understanding of the knowledge and their ability to extend their thinking. Utility Model Content

[0004] This invention provides a rotatable pressure display device, which is convenient to use, has obvious experimental effects, and is highly flexible. It helps students explore and practice in various ways, and is beneficial to students' understanding of knowledge and extended thinking.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a rotatable pressure display device, comprising a frame, wherein elastic membranes are arranged on four adjacent sides of the frame, and transparent baffles are fixedly arranged on the other two opposite sides of the frame;

[0006] A handheld handle, which is parallel to a transparent baffle, which is connected to the side of the handheld handle near the bottom via a transmission assembly;

[0007] The transmission assembly includes a transmission wheel set located on one side of the hand handle, a transmission chain connecting the transmission wheel set, and a rotating handle. The side of the transmission wheel set away from the hand handle is fixedly connected to a transparent baffle. The other side of the transmission wheel set is inserted into the inside of the hand handle and rotates from the insertion position. One end of the rotating handle is connected to one end of the transmission wheel set inside the hand handle, and the other end of the rotating handle extends out of the hand handle. Rotating the rotating handle causes the transmission wheel set to drive the frame to rotate.

[0008] An air duct that is connected to the interior of the frame.

[0009] As a further improvement, the transmission wheel assembly includes a first transmission wheel and a second transmission wheel, the first transmission wheel being near the top of the handheld handle and the second transmission wheel being near its bottom. The second transmission wheel is fixedly connected to the surface of one of the transparent baffles, and the first transmission wheel is inserted into one side of the handheld handle and connected to the handheld handle.

[0010] As a further improvement, both the first and second transmission wheels are gears, and the transmission chain is a chain that meshes with the two gears.

[0011] As a further improvement, the surface of the hand handle is provided with a through-hole for inserting the first transmission wheel and a socket for inserting the second transmission wheel. A limit ring is provided in the socket. The limit ring is detachably connected to the end of the second transmission wheel away from the frame. One end of the first transmission wheel is fixedly connected to one end of the rotating handle in the through-hole.

[0012] As a further improvement, both the first and second drive wheels are rollers, and the drive chain is a connecting belt sleeved on the two rollers.

[0013] As a further improvement, the roller includes two limiting rings and a support rod detachably connected between the centers of the two limiting rings. A connecting belt is sleeved on the two support rods. The support rod of the first drive wheel passes through the inside of the hand handle. One of the limiting rings of the second drive wheel is fixedly connected to the frame, and the connected support rod is inserted into the hand handle.

[0014] As a further improvement, the inner surface of the connecting strip is provided with anti-slip texture.

[0015] As a further improvement, the surface of the support rod is provided with a groove, and the contact surface between the connecting strip and the support rod is embedded in the groove.

[0016] As a further improvement, one of the transparent baffles has a vent on its surface, and one end of the air duct is connected to the inside of the frame through the vent.

[0017] As a further improvement, the frame and handheld handle are made of transparent acrylic material.

[0018] The above-mentioned technical solution of this utility model has the following beneficial effects: This utility model connects one end of the rotating handle to one end of the transmission wheel assembly inside the handheld rod 4, and the other end of the rotating handle extends out of the handheld rod. By rotating the rotating handle, the transmission wheel assembly drives the frame to rotate. The air duct is connected to the inside of the frame for gas discharge. When the teacher uses it during teaching, prepare a water tank with sufficient water level, hold the top position of the handheld rod, and lower the frame located on the bottom side of the handheld rod into the water tank. Since the rotating handle is fixedly connected to one end of the transmission wheel assembly or is integrally formed, by rotating the rotating handle, the transmission wheel assembly rotates circumferentially from the insertion position with the handheld rod 4. Since the transmission chain is sleeved on the transmission wheel assembly, the transparent baffle surface on one side of the frame is fixedly connected to one side of the transmission wheel assembly, so that the transmission chain moves with the rotation of the transmission wheel assembly, and finally drives the frame to rotate. That is, the frame can be rotated clockwise or counterclockwise in the water tank to the top, right, bottom, and left sides. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0020] Figure 2 This is a side perspective view of one embodiment of the present invention.

[0021] Figure 3 This is a side perspective view of one embodiment of the present invention.

[0022] Figure 4 This is a side perspective view of one embodiment of the present invention.

[0023] Reference numerals: 1. Frame, 2. Elastic membrane, 3. Transparent baffle, 4. Hand handle, 5. Transmission assembly, 6. Transmission wheel set, 7. Transmission chain, 8. Rotating handle, 9. Air duct, 10. First transmission wheel, 11. Second transmission wheel, 12. Port, 13. Insert, 14. Limiting ring, 15. Limiting ring, 16. Support rod, 17. Groove, 18. Air vent. Detailed Implementation

[0024] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples.

[0026] Please see Figures 1 to 4As shown, this utility model discloses a rotatable pressure display device, including a frame 1, with elastic membranes 2 arranged on four adjacent sides of the frame 1, and transparent baffles 3 fixedly arranged on two other opposing sides of the frame 1; a handheld rod 4, which is parallel to the transparent baffles 3, and the transparent baffles 3 are connected to the side of the handheld rod 4 near the bottom via a transmission assembly 5; the transmission assembly 5 includes a transmission wheel set 6 located on one side of the handheld rod 4, a transmission chain 7 connecting the transmission wheel set 6, and a rotating handle 8, with the side of the transmission wheel set 6 away from the handheld rod 4 fixedly connected to the transparent baffles 3, and the other side of the transmission wheel set 6 inserted into the handheld rod 4 and rotating from the insertion position, and one end of the rotating handle 8 inside the handheld rod 4 connected to the transmission chain 7. One end of the wheel assembly 6 is connected to the handle 8, and the other end extends out of the hand handle 4. By rotating the handle 8, the transmission wheel assembly 6 drives the frame 1 to rotate. This application is for a teaching tool for junior high school physics, referred to as a teaching tool. The entire device is made of transparent acrylic sheet, and the processing methods include cutting, chamfering, polishing, and bonding. The frame 1 is a rectangular frame 1, including six sides, specifically the adjacent top, right, bottom, left sides and front and back sides. Elastic membranes 2 are respectively set on the top, right, bottom, and left sides of the frame 1. The elastic membranes 2 can be fixedly set on the frame 1 or sleeved on the frame 1. Transparent baffles 3 are fixedly set on the front and back sides respectively. The hand handle 4 is connected to the surface of one of the transparent baffles 3 through the transmission assembly 5, and the frame 1 is located on the hand handle 4. Near the bottom, the transmission wheel assembly 6 can be either a roller assembly or a gear assembly. The transmission chain 7 can be a chain fitted onto the gear assembly and cooperating with it for transmission, or a transmission belt structure fitted onto the roller assembly and cooperating with it for rotation. Since one end of the rotating handle 8 is inside the hand handle 4 and connected to one end of the transmission wheel assembly 6, and the other end of the rotating handle 8 extends out of the hand handle 4, rotating the rotating handle 8 causes the transmission wheel assembly 6 to drive the frame 1 to rotate. Therefore, the other end of the transmission wheel assembly 6 can be fixedly connected to the rotating handle 8, or the other end of the transmission wheel assembly 6 can horizontally pass through the inside of the hand handle 4 and extend out from the other side of the hand handle 4 to form the rotating handle 8. Both methods achieve the purpose of rotating the rotating handle 8 to drive the frame 1 to rotate. The air duct 9 is connected to the interior of the frame 1 for gas discharge. When used by the teacher during instruction, a water tank with sufficient water level is prepared. Holding the top of the handle 4, the frame 1, located on one side of the bottom of the handle 4, is lowered into the water tank. Since the rotating handle 8 is fixedly connected to one end of the transmission wheel assembly 6 or is integrally formed, rotating the handle 8 causes the transmission wheel assembly 6 to rotate circumferentially from its insertion position with the handle 4. Because the transmission chain 7 is sleeved on the transmission wheel assembly 6, and the transparent baffle 3 on one side of the frame 1 is fixedly connected to one side of the transmission wheel assembly 6, the transmission chain 7 moves with the rotation of the transmission wheel assembly 6, ultimately driving the frame 1 to rotate. This allows the frame 1 to rotate clockwise or counterclockwise within the water tank, moving between the top, right, bottom, and left sides.The preferred rotating handle 8 is located near the top of the handheld lever 4, so that students do not need to put their hands into the water tank during operation, making operation more convenient. At this time, due to the pressure changes of the frame 1 at different depths in the water tank, the frame 1 is squeezed, converting the water pressure into force, and then into the deformation of the elastic membrane 2. The air duct 9 extends to the outside of the water tank to expel the air inside the frame 1 at this time, making it easy to observe the deformation of the elastic membrane 2 caused by the water pressure. The rotatable pressure display device of this application can change the orientation of the four elastic membranes 2 by rotating, allowing students to recognize and feel that there is pressure inside the liquid, and that there is pressure in all directions, with different pressures at different depths. After the frame 1 is immersed in water, students observe the deformation of the four elastic membranes 2. Rotate the rotating handle 8 until the positions of the upper and lower membranes are reversed, and observe. To observe the deformation of the elastic membrane 2, since the pressure at the same depth needs to be reflected using the same experimental effect display device—that is, the rotatable pressure display device of this application—which uses the same elastic membrane 2, rotation is necessary to change the position of the elastic membrane 2. This change in the orientation of the elastic membrane 2 allows for flexible rotation of the frame 1, displaying the characteristics of liquid pressure pointing in various directions. The upper, lower, left, and right sides of the elastic membrane 2 can be interchanged, eliminating concerns that different elastic membranes 2 would cause different deformations. This lays the groundwork for students to hypothesize that pressure is related to depth and that pressure is equal in all directions at the same depth. The rotatable pressure display device of this application is easy to use, provides clear experimental results, and has good flexibility, helping students explore and practice in multiple ways, and facilitating their understanding and extended thinking.

[0027] Referring to Figure 1, specifically, the transmission wheel assembly 6 includes a first transmission wheel 10 and a second transmission wheel 11. The first transmission wheel 10 is located near the top of the handheld lever 4, and the second transmission wheel 11 is located near its bottom. The second transmission wheel 11 is fixedly connected to the surface of one of the transparent baffles 3. One side of the first transmission wheel 10 is inserted into the handheld lever 4 and connected to it. The transmission wheel can be a roller or a gear. The transmission chain 7 can be a chain that is fitted onto two gears and drives the transmission, or a connecting belt that is fitted onto two rollers and rotates with them. One side of the first transmission wheel 10 and the second transmission wheel 11 is located between the handheld lever 4 and the frame 1, with the first transmission wheel 10 located near the top of the handheld lever 4. The second transmission wheel 11 is located near its bottom and is fixedly connected to the surface of one of the transparent baffles 3. This allows students to rotate the handle 8 near the top of the handrail 4 after the frame 1 is immersed in water, without having to put their hands in the water, which facilitates observation during the experiment. When the handle 8 is rotated counterclockwise or clockwise, the first transmission wheel 10 rotates circumferentially, which in turn causes the transmission chain 7 to drive the second transmission wheel 11 to rotate, ultimately achieving the rotation of the frame 1. This allows the surfaces of the frame 1 with elastic membranes 2 on the top, right, bottom, and left to rotate clockwise or counterclockwise, making it easier for students to observe the deformation of the elastic membranes 2 on each surface of the frame 1 after rotation.

[0028] Please refer to the following: Figure 2 As shown, specifically, the first transmission wheel 10 and the second transmission wheel 11 are both gears, and the transmission chain 7 is a chain that meshes with the two gears. When the handle 8 is rotated counterclockwise or clockwise, the gears and the chain cooperate to transmit power, ultimately realizing the rotation of the frame 1. This causes the surfaces of the frame 1 with elastic membranes 2 on the upper, right, lower, and left sides to rotate clockwise or counterclockwise, making the rotation of the frame 1 more stable and smooth.

[0029] Please refer to the following: Figure 2As shown, specifically, the surface of the handheld lever 4 has a through-hole 12 for inserting the first transmission wheel 10 and an insertion hole 13 for inserting the second transmission wheel 11. A limiting ring 14 is provided in the insertion hole 13. The limiting ring 14 is detachably connected to the end of the second transmission wheel 11 away from the frame 1. One end of the first transmission wheel 10 is fixedly connected to one end of the rotating handle 8 in the through-hole 12. For ease of understanding, the first transmission wheel 10 is the first gear, and the second transmission wheel 11 is the second gear. The shaft of the first gear is inserted into the through-hole 12 and fixedly connected to one end of the rotating handle 8 in the through-hole 12. The surface of the second gear is fixedly connected to the frame 1. The end of the second gear away from the frame 1, that is, the shaft, is inserted into the insertion hole 13 and detachably connected to the limiting ring 14 in the insertion hole 13. The edge of the limiting ring 14 is larger than the opening of the insertion hole 13. As the second gear rotates, the limiting ring 14 also rotates. The limiting ring 14 prevents the second gear from disengaging from the handheld lever 4, making the transmission between the gear and the chain more stable.

[0030] Please refer to the following: Figure 3 as well as Figure 4 As shown, specifically, the first transmission wheel 10 and the second transmission wheel 11 are both rollers, and the transmission chain 7 is a connecting belt sleeved on the two rollers. When the handle 8 is rotated counterclockwise or clockwise, the rollers cooperate with the connecting belt to transmit power, ultimately realizing the rotation of the frame 1. This causes the surfaces of the frame 1 with elastic membranes 2 on the upper, right, lower, and left sides to rotate clockwise or counterclockwise, making the rotation of the frame 1 more stable and smooth. The rollers can be H-shaped, which can better limit the position of the connecting belt and make the transmission process more stable and smooth.

[0031] Please refer to the following: Figure 3 as well as Figure 4As shown, specifically, the roller includes two limiting rings 15 and a support rod 16 detachably connected between the centers of the two limiting rings 15. A connecting belt is sleeved on the two support rods 16. The support rod 16 of the first transmission wheel 10 passes through the inside of the handheld handle 4. One of the limiting rings 15 of the second transmission wheel 11 is fixedly connected to the frame 1, and the connected support rod 16 is inserted into the handheld handle 4. For ease of understanding, the first transmission wheel 10 is the first roller, and the second transmission wheel 11 is the second roller. The two limiting rings 15 of the first roller are located on both sides of the handheld handle 4. The support rod 16 of the first roller horizontally passes through the inside of the handheld handle 4 and connects the two limiting rings 15. At this time, it can be located on the handheld handle 4. One of the limiting rings 15 forms a rotating handle 8, or one end of the rotating handle 8 is fixedly connected to the surface of the limiting ring 15 away from the support rod 16. The surface of the hand handle 4 is provided with a through 12 for inserting the support rod 16 of the first roller and an insertion port 13 for inserting the support rod 16 of the second roller. One of the limiting rings 15 of the second roller is fixedly connected to a transparent baffle 3 on the side away from the support rod 16, and the other limiting ring 15 is located in the insertion port 13. The outer circumference of the limiting ring 15 is larger than the opening of the insertion port 13. As the second roller rotates, the limiting ring 15 will also rotate. The limiting ring 15 prevents the second roller from disengaging from the hand handle 4, making the transmission between the roller and the connecting belt more stable.

[0032] Please refer to the following: Figure 3 as well as Figure 4 As shown, specifically, the inner surface of the connecting belt is provided with anti-slip texture to increase the friction between the connecting belt and the roller, and to better cooperate between the roller and the connecting belt. Preferably, the connecting belt is an elastic band or a rubber band.

[0033] Please refer to the following: Figure 3 As shown, specifically, the surface of the support rod 16 is provided with a groove 17, and the contact surface between the connecting belt and the support rod 16 is embedded in the groove 17 to prevent the connecting belt from misaligning during the transmission process of the roller and the connecting belt, so that the frame 1 rotates more smoothly.

[0034] Please refer to the following: Figures 1 to 4 As shown, specifically, one of the transparent baffles 3 has an air vent 18 on its surface, and one end of the air duct 9 is connected to the inside of the frame 1 through the air vent 18, which further facilitates the teaching objective of allowing students to observe the deformation of each elastic membrane 2.

[0035] Please refer to the following: Figures 1 to 4 As shown, specifically, the frame 1 and the handheld rod 4 are made of transparent acrylic material, which is structurally stable and further facilitates the teaching objective of allowing students to observe the deformation of each elastic membrane 2.

[0036] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rotatable pressure display device, characterized in that: include The frame (1) has elastic membranes (2) arranged on four adjacent sides in sequence, and transparent baffles (3) are fixedly arranged on the other two opposite sides of the frame (1); The handheld lever (4) is parallel to the transparent baffle (3), and the transparent baffle (3) is connected to the side of the handheld lever (4) near the bottom via a transmission assembly (5); The transmission assembly (5) includes a transmission wheel set (6) located on one side of the hand handle (4), a transmission chain (7) connecting the transmission wheel set (6), and a rotating handle (8). The side of the transmission wheel set (6) away from the hand handle (4) is fixedly connected to the transparent baffle (3). The other side of the transmission wheel set (6) is inserted into the inside of the hand handle (4) and rotates from the insertion position. One end of the rotating handle (8) is connected to one end of the transmission wheel set (6) inside the hand handle (4), and the other end of the rotating handle (8) extends out of the hand handle (4). By rotating the rotating handle (8), the transmission wheel set (6) drives the frame (1) to rotate. The air duct (9) is connected to the inside of the frame (1). The transmission wheel assembly (6) includes a first transmission wheel (10) and a second transmission wheel (11). The first transmission wheel (10) is close to the top of the handheld lever (4), and the second transmission wheel (11) is close to its bottom. The second transmission wheel (11) is fixedly connected to the surface of one of the transparent baffles (3). The first transmission wheel (10) is inserted into the handheld lever (4) and connected to the handheld lever (4). The first transmission wheel (10) and the second transmission wheel (11) are connected to each other. 1) All are rollers. The transmission chain (7) is a connecting belt sleeved on the two rollers. The rollers include two limiting rings (15) and a support rod (16) detachably connected between the centers of the two limiting rings (15). The connecting belt is sleeved on the two support rods (16). The support rod (16) of the first transmission wheel (10) passes through the inside of the hand handle (4). One of the limiting rings (15) of the second transmission wheel (11) is fixedly connected to the frame (1). The connected support rod (16) is inserted into the hand handle (4).

2. The rotatable pressure display device according to claim 1, characterized in that: The inner surface of the connecting strip is provided with anti-slip texture.

3. The rotatable pressure display device according to claim 1, characterized in that: The surface of the support rod (16) is provided with a groove (17), and the contact surface between the connecting strip and the support rod (16) is embedded in the groove (17).

4. The rotatable pressure display device according to claim 1, characterized in that: One of the transparent baffles (3) has an air vent (18) on its surface, and one end of the air duct (9) is connected to the inside of the frame (1) through the air vent (18).

5. The rotatable pressure display device according to claim 1, characterized in that: The frame (1) and the handheld rod (4) are made of transparent acrylic material.

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