Transmission type liquid internal pressure exploring demonstration teaching aid

Abstract

The utility model discloses transmission type liquid interior pressure explores demonstration teaching aid, including water tank, fixed clamp, cross beam, adapter support, pressure chamber, transmission, water tank is transparent casing, the left and right ends of cross beam assemble fixed clamp, and fixed clamp swing joint is in the water tank along the mouth, and cross beam is equipped with a plurality of adapter supports, and pressure chamber and transmission are installed on the adapter support. Compared with the prior art, the utility model can demonstrate the liquid interior pressure of the same position of different depths, the liquid interior pressure of different positions of the same depth and the liquid interior pressure of different angles of the same position and the same depth at the same time, so that the experiment is more simple and convenient, and the data is rich. Meanwhile, the elastic film is installed in the buckle type of the clamping block, and the installation and dismounting are more simple and convenient. The stability of the experimental installation mode of the double fixed clamps is better, and the experimental accuracy of the device is favorable.

Description

Technical Field

[0001] This utility model relates to the field of experimental teaching aids technology, specifically a transmission-type demonstration teaching aid for exploring the internal pressure of liquids. Background Technology

[0002] Liquid internal pressure experiments typically involve inserting a test probe into the liquid, with a pressure gauge displaying data based on changes in the elastic diaphragm on the probe. Common pressure experiment teaching aids are usually single probes with a single fixed support. A single probe can only measure pressure at a single depth at a single test, making its function relatively limited. A single fixed support has poor stability when attached to the container wall, and the probe depth can change significantly with shaking during the test, affecting accuracy. Furthermore, its elastic diaphragm is usually fixed with a rubber band, making installation and use inconvenient. Utility Model Content

[0003] The purpose of this invention is to provide a transmission-type teaching aid for exploring the internal pressure of liquids, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: it includes a water tank, a fixing clamp, a cross beam, a connecting bracket, a pressure chamber, and a transmission device; the water tank is a transparent shell; the left and right ends of the cross beam are equipped with fixing clamps, which are movably engaged with the edge of the water tank; several connecting brackets are mounted on the cross beam; the pressure chamber and the transmission device are mounted on the connecting brackets.

[0005] The cross beam includes a main shaft square tube, a cross bracket, and a fixing clamp square tube; the main shaft square tube and the fixing clamp square tube are installed in a "+" shape, and the cross bracket is used for fixation at the junction;

[0006] The transmission device includes a handwheel, a driven wheel, and a transmission belt; the handwheel and the driven wheel are provided with a locking interface for assembly with the adapter bracket in the middle; the handwheel is provided with a protruding handle on the side wall and is mounted on the adapter bracket; the driven wheel is mounted on the pressure chamber; and the handwheel and the driven wheel are connected by a transmission belt.

[0007] As a preferred embodiment of this utility model, the adapter bracket includes a single-pass bracket and a double-pass bracket; the single-pass bracket is installed at the upper and lower ends of the cross beam; the double-pass bracket is installed at any position in the middle of the cross beam; both the single-pass bracket and the double-pass bracket have snap-fit ​​buckles and fixing screw holes on their side walls.

[0008] As a preferred embodiment of this utility model, the pressure chamber includes a chamber seat, a chamber seat retaining ring, a connecting nozzle, and an elastic membrane; the chamber seat is hollow cup-shaped, with a connecting nozzle at its bottom, the connecting nozzle being hollow and communicating with the interior of the chamber seat; the chamber seat retaining ring has the same shape as the upper edge of the chamber seat, and its inner dimension is larger than the outer dimension of the upper edge of the chamber seat; the outer edge of the chamber seat retaining ring is provided with several protrusions; the thickness of the elastic membrane is greater than the difference between the inner dimension of the chamber seat retaining ring and the outer dimension of the upper edge of the chamber seat.

[0009] In a preferred embodiment of this invention, the driven wheel and the pressure chamber are either movably connected or fixedly connected.

[0010] As a preferred embodiment of this utility model, the adapter bracket and the pressure chamber are integrally formed, and multiple pressure chambers can be installed on one adapter bracket.

[0011] As a preferred embodiment of this utility model, the water tank is a highly transparent single-opening sealed shell.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model can simultaneously demonstrate the internal pressure of liquids at different depths and the same position, the internal pressure of liquids at the same depth and different positions, and the internal pressure of liquids at the same depth and the same position but different angles, making the experiment simpler, more convenient, and with richer data; at the same time, the elastic membrane adopts a snap-on installation method, which makes installation and disassembly simpler and more convenient, and the double-fixed clamp experimental installation method has better stability, which is conducive to the experimental accuracy of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is a three-dimensional schematic diagram of the internal structure of this utility model. Figure 1 ;

[0015] Figure 3 This is a three-dimensional schematic diagram of the internal structure of this utility model. Figure 2 ;

[0016] In the diagram: 1. Water tank; 2. Fixing clamp; 3. Cross beam; 31. Main shaft square tube; 32. Cross bracket; 33. Fixing clamp square tube; 4. Adapter bracket; 41. Single-pass bracket; 42. Double-pass bracket; 5. Pressure chamber; 51. Chamber seat; 52. Chamber seat retaining ring; 53. Connecting nozzle; 54. Elastic diaphragm; 6. Transmission device; 61. Handwheel; 62. Driven wheel; 63. Transmission belt. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 3As shown, this utility model discloses a transmission-type demonstration teaching aid for exploring the internal pressure of a liquid. 1. It includes a water tank 1, fixing clamps 2, a cross beam 3, adapter brackets 4, a pressure chamber 5, and a transmission device 6. The water tank 1 is a transparent shell. The left and right ends of the cross beam 3 are equipped with fixing clamps 2, which are movably engaged with the rim of the water tank 1. Several adapter brackets 4 are mounted on the cross beam 3. The pressure chamber 5 and the transmission device are mounted on the adapter brackets 4. The cross beam 3 includes a main shaft square tube 31 and a cross bracket 32. The main shaft square tube 31 and the fixed clamp square tube 33 are installed in a "+" shape, and a cross bracket 32 ​​is installed at the junction for fixation. The transmission device 6 includes a handwheel 61, a driven wheel 62, and a transmission belt 63. The handwheel 61 and the driven wheel 62 are provided with a snap-fit ​​interface for assembly with the adapter bracket 4. The side wall of the handwheel 61 is provided with a protruding handle, which is installed on the adapter bracket 4. The driven wheel 62 is fixedly connected to the pressure chamber 5. The handwheel 61 and the driven wheel 62 are connected by a transmission belt 63. A single-pass bracket 41 is installed at the upper and lower ends of the cross beam 3. The double-pass bracket 42 is installed at any position in the middle of the cross beam 3 and can be flexibly adjusted as needed. The size of the transmission belt 63 is related to the distance between the handwheel 61 and the driven wheel 62.

[0019] The working principle of this utility model is as follows: When using this utility model, first inject an appropriate amount of liquid to be tested into the water tank 1, then connect the pressure gauge to each connector 53 with several hoses, and finally insert the device with the elastic membrane 54 into the liquid and fix it to the edge of the water tank 1 with the fixing clip 2. Observe the pressure gauges connected to the upper, middle and lower pressure chambers 5 to show the internal pressure of the liquid at the same position at different depths. Observe the pressure gauges connected to the two pressure chambers 5 in the middle to show the internal pressure of the liquid at different positions at the same depth. By rotating the handwheel 61, the pressure chamber 5 fixedly connected to the driven wheel 62 can be driven through the transmission belt 63. This pressure chamber 5 can rotate 360°, and the pressure gauge connected to this pressure chamber 5 can show the internal pressure of the liquid at different angles at the same depth and position.

[0020] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A transmission-type demonstration teaching aid for exploring the internal pressure of a liquid, characterized by: The device includes a water tank (1), a fixing clamp (2), a cross beam (3), a connecting bracket (4), a pressure chamber (5), and a transmission device (6); the water tank (1) is a transparent shell; the left and right ends of the cross beam (3) are equipped with fixing clamps (2), which are movably engaged with the edge of the water tank (1); several connecting brackets (4) are mounted on the cross beam (3); the pressure chamber (5) and the transmission device are mounted on the connecting brackets (4); The cross beam (3) includes a main shaft square tube (31), a cross bracket (32), and a fixing clamp square tube (33); the main shaft square tube (31) and the fixing clamp square tube (33) are installed in a "+" shape, and the cross bracket (32) is installed at the junction for fixation; The transmission device (6) includes a handwheel (61), a driven wheel (62), and a transmission belt (63); the handwheel (61) and the driven wheel (62) are provided with a snap-fit ​​interface for assembly with the adapter bracket (4) in the middle; the handwheel (61) is provided with a protruding handle on the side wall and is mounted on the adapter bracket (4); the driven wheel (62) is mounted on the pressure chamber (5); the handwheel (61) and the driven wheel (62) are connected by a transmission belt (63).

2. The transmission-type liquid internal pressure exploration demonstration teaching aid according to claim 1, characterized in that: The adapter bracket (4) includes a single-pass bracket (41) and a double-pass bracket (42); the single-pass bracket (41) is installed at the upper and lower ends of the cross beam (3); the double-pass bracket (42) is installed at any position in the middle of the cross beam (3); the side walls of the single-pass bracket (41) and the double-pass bracket (42) have snap-fit ​​buckles and fixing screw holes.

3. The transmission-type liquid internal pressure exploration demonstration teaching aid according to claim 1, characterized in that: The pressure chamber (5) includes a chamber seat (51), a chamber seat retaining ring (52), a connecting nozzle (53), and an elastic membrane (54). The chamber seat (51) is a hollow cup shape, and a connecting nozzle (53) is provided at its bottom. The connecting nozzle (53) is hollow and communicates with the interior of the chamber seat (51). The shape of the chamber seat retaining ring (52) is consistent with the upper edge of the chamber seat (51), and its inner size is larger than the outer size of the upper edge of the chamber seat (51). Several protrusions are provided on the outer edge of the chamber seat retaining ring (52). The thickness of the elastic membrane (54) is greater than the difference between the inner size of the chamber seat retaining ring (52) and the outer size of the upper edge of the chamber seat (51).

4. The transmission-type liquid internal pressure exploration demonstration teaching aid according to claim 1, characterized in that: The driven wheel (62) and the pressure chamber (5) are either movable or fixedly connected.

5. The transmission-type liquid internal pressure exploration demonstration teaching aid according to claim 2, characterized in that: The adapter bracket (4) and the pressure chamber (5) are integrally formed, and multiple pressure chambers (5) can be installed on one adapter bracket (4).

6. The transmission-type liquid internal pressure exploration demonstration teaching aid according to claim 1, characterized in that: The water tank (1) is a highly transparent single-opening sealed shell.

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