A portable anti-freezing fluid tester

Abstract

The utility model discloses a portable anti -icing fluid tester, including casing, gasbag, several different buoyancy ball of density, the cavity of accommodating anti -icing fluid, inlet and outlet liquid passage, gasbag opening are equipped in casing, wherein inlet and outlet liquid passage, gasbag opening all are linked to the inside of cavity, several different buoyancy ball of density all set up in the cavity, and one end of gasbag is installed on gasbag opening.

Description

Technical Field

[0001] This utility model relates to the field of testing instrument technology, and in particular to a portable antifreeze tester. Background Technology

[0002] Antifreeze is a coolant containing special additives, and it is a key indicator for ensuring the normal operation of the engine cooling system during routine vehicle maintenance. Currently, commonly used testing methods fall into two main categories: benchtop optical refractometers and handheld electronic freezing point meters.

[0003] A desktop optical refractometer typically consists of a prism, a cover plate, and a graduated dial. Operation requires first applying a drop of antifreeze to the prism surface using a pipette, then closing the cover plate and reading the scale corresponding to the light-dark boundary line towards the light source. While this method offers high accuracy in the laboratory, the instrument is bulky, has many accessories, and is inconvenient to use.

[0004] Handheld electronic freezing point meters use temperature sensors and microprocessors to quickly calculate the freezing point of antifreeze samples and display the value directly on an LCD screen. While these products are convenient to carry, their internal circuitry relies on button batteries or rechargeable batteries for power. In low-temperature environments, the battery's discharge capacity drops drastically, making the instrument prone to shutting down or providing unstable readings.

[0005] Therefore, there is an urgent need for a portable antifreeze testing device that is simple in structure, requires no external power supply, and can be tested with one hand. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a portable antifreeze tester.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A portable antifreeze tester includes a housing, an air bladder, and several buoyancy balls of different densities.

[0009] The shell has a cavity for containing antifreeze, an inlet / outlet channel, and an airbag opening, wherein the inlet / outlet channel and the airbag opening are connected to the inside of the cavity; several buoyancy balls of different densities are placed inside the cavity; one end of the airbag is installed on the airbag opening.

[0010] Furthermore, the surface of the housing is provided with a viewing window.

[0011] Furthermore, the surface of the shell is provided with a scale display module corresponding to buoyancy balls of different densities.

[0012] Furthermore, a suction tube is connected to the inlet / outlet liquid channel.

[0013] Furthermore, the density of the buoyancy ball ranges from 1.044 to 1.0746 g / m³. 3 .

[0014] Furthermore, the scale display module displays an ice point scale range of -45° to 0°.

[0015] Furthermore, the outer wall of the housing is provided with anti-slip texture.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Freezing point determination can be achieved through a purely mechanical combination of shell, air bladder, and multiple buoyancy balls of different densities, which reduces manufacturing costs.

[0018] 2. The shell and airbag form a grippable whole, and the liquid is introduced by "one-time squeezing and suction" and discharged by "two-time squeezing and discharge". The whole process can be completed with only one hand.

[0019] 3. The freezing point scale is directly set on the shell, corresponding to the buoyancy ball, so users can quickly judge the temperature of the antifreeze without conversion, reducing misjudgment. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a portable antifreeze tester provided in Embodiment 1;

[0021] Figure 2 This is a schematic diagram of the shell and airbag provided in Embodiment 1;

[0022] Figure 3 This is a schematic diagram of the connection between the lower shell, airbag, and suction tube provided in Embodiment 1;

[0023] Figure 4 This is a schematic diagram of the housing provided in Embodiment 2;

[0024] Figure 5 This is a schematic diagram of the housing provided in Embodiment 1;

[0025] Figure 6 This is a schematic diagram of the lower shell provided in Embodiment 1;

[0026] Figure 7 This is a schematic diagram of the lower shell provided in Embodiment 1;

[0027] Figure 8 This is a schematic diagram of the upper shell provided in Embodiment 2;

[0028] Figure 9 This is a schematic diagram of the upper shell provided in Embodiment 1;

[0029] Figure 10 This is a schematic diagram of the airbag provided in Embodiment 1;

[0030] Figure 11 This is a schematic diagram of the airbag provided in Embodiment 1;

[0031] Among them, 1. Shell; 11. Upper shell; 111. Scale display module; 112. Viewing window; 113. Anti-slip texture; 12. Lower shell; 13. Cavity; 14. Liquid inlet / outlet channel; 15. Liquid inlet / outlet pipe; 16. Airbag opening; 17. Airbag mounting pipe; 18. Chamfer; 19. Arc plate; 191. Slot; 2. Airbag; 21. Mounting port; 22. Arc structure; 23. Protruding structure; 3. Buoyancy ball; 4. Suction pipe. Detailed Implementation

[0032] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0033] The purpose of this invention is to address the shortcomings of existing technologies by providing a portable antifreeze tester.

[0034] Example 1

[0035] This embodiment provides a portable antifreeze tester, such as... Figure 1-11 As shown, it includes a shell 1, an air bladder 2, several buoyancy balls 3 of different densities, and a liquid suction tube 4.

[0036] The housing 1 includes an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 can be integrally formed or connected by snap-fit ​​or other means, as long as the upper housing 11 and the lower housing 12 are sealed after being connected.

[0037] The lower housing 12 is divided into a liquid containment area, a liquid inlet / outlet area, and an airbag installation area.

[0038] The liquid containment area can be a cavity 13 for containing antifreeze.

[0039] The liquid inlet / outlet area is located on one side of the cavity 13 and in the lower middle position on one side of the lower housing 12. The liquid inlet / outlet area is an arc-shaped liquid inlet / outlet channel 14. One end of the liquid inlet / outlet channel 14 is connected to the cavity 13, and the other end of the liquid inlet / outlet channel 14 is provided with an internally penetrating liquid inlet / outlet pipe 15. The liquid inlet / outlet pipe 15 can cooperate with an external suction pipe 4 so that one end of the suction pipe 4 is fixedly sleeved on the liquid inlet / outlet pipe 15.

[0040] The airbag installation area is located on one side of the cavity 13 and near the top of the lower housing 12. The airbag installation area is an airbag opening 16, which is connected to the cavity 13. An airbag installation tube 17 is also provided outside the airbag opening 16, which is internally penetrating. The airbag installation tube 17 cooperates with the airbag 2 so that one end of the airbag 2 is fixedly sleeved on the inlet / outlet liquid tube 15.

[0041] In this embodiment, the cavity 13, the inlet / outlet channel 14, the bladder opening 16, etc., are all fitted with the upper shell 11 so that the cavity 13, the inlet / outlet channel 14, the bladder opening 16, etc. form a sealed structure.

[0042] The airbag 2 can be a three-layer integrated corrugated airbag with a near-circular shape. One end of the airbag 2 is provided with an installation port 21. The airbag 2 is press-fitted onto the airbag installation tube 17 through the installation port 21 so that the airbag 2 will not detach from the airbag installation tube 17 during use and is sealed. The other end of the airbag 2 is provided with a hook-like arc structure 22 and a protruding structure 23. There is an installation space between the arc structure 22 and the protruding structure 23 that is adapted to one side of the shell.

[0043] In this embodiment, the top of one side of the housing 1 in the airbag mounting area is provided with a chamfer 18 that is adapted to the airbag 2, so that the top chamfer 18 of the housing 1 abuts against the airbag 2 near the top; an arc plate 19 is provided in the middle of one side of the housing 1 in the airbag mounting area. The arc plate 19 is disposed in the mounting space between the arc structure 22 and the protruding structure 23, and one end of the arc plate abuts against the protruding structure 23 of the airbag 2; a slot 191 adapted to the arc structure 22 is also provided on the outer side of the arc plate 19, so that the arc structure 22 is engaged in the slot 191, so that the chamfer 18, the arc plate 19, the slot 191 of the housing 1 cooperate with the airbag 2, thereby fixing the airbag 2 in the airbag mounting area of ​​the housing 1, so that the airbag 2 will not fall off or shift during use.

[0044] The upper half of the upper housing 11 has a scale display module 111 on its surface. The scale display module 111 displays different freezing point temperatures of the refrigerant, including 0°C, -16°C, -25°C, -35°C, -40°C, and -45°C. In this embodiment, different colors are used to represent different freezing point temperatures: 0°C is represented by a red background frame, -16°C by an orange background frame, -25°C by a yellow background frame, -35°C by a green background frame, -40°C by a blue background frame, and -45°C by a purple background frame. The lower half of the upper housing 11, corresponding to the cavity 13, has a viewing window 112. This viewing window 112 is made of transparent material and can be installed on the upper housing 11 by ultrasonic welding or two-color injection molding, allowing the user to observe the inside of the cavity 13. One side of the upper housing 11 also has anti-slip textures 113 to increase friction during user operation.

[0045] Several buoyancy balls 3 of different densities are disposed within the cavity 13. In this embodiment, there are six buoyancy balls of different densities, and the density of each buoyancy ball 3 corresponds to the freezing point temperature displayed by the scale display module 111 and the background frame color. For example, the density of the first buoyancy ball is less than 0.034 g / m³. 3 The first buoyancy ball is red, corresponding to 0° on the scale display module 111; the density of the second buoyancy ball is 1.044 g / m³. 3 The second buoyancy ball is orange-yellow in color, corresponding to -16° in the scale display module 111; the density of the third buoyancy ball is 1.0586 g / m³. 3 The third buoyancy ball is yellow, corresponding to -25° in the scale display module 111; the density of the fourth buoyancy ball is 1.0671 g / m³. 3 The fourth buoyancy ball is green, corresponding to -35° in the scale display module 111; the density of the fifth buoyancy ball is 1.0071 g / m³. 3 -1.0713g / m 3 The fifth buoyancy ball is blue, corresponding to -40° on the scale display module 111; the density of the sixth buoyancy ball is 1.0746 g / m³. 3 The sixth buoyancy ball is purple, and its corresponding scale display module 111 shows -45°.

[0046] In this embodiment, the portable antifreeze tester is used as follows:

[0047] When it is necessary to measure the freezing point temperature of the antifreeze in the car, one end of the suction tube 4 is placed in the antifreeze. The user squeezes the airbag 1, and under the action of air pressure, the antifreeze enters the cavity 13 along the suction tube 4 and the inlet / outlet channel 14. At this time, the buoyancy ball 3 set in the cavity will float, sink, or suspend according to the density of the antifreeze. The user can observe which buoyancy ball is closest to the center and in a suspended state, and then compare the color of the buoyancy ball with the background frame color on the scale display module 111. Then, the user can obtain the actual freezing point temperature or the closest freezing point temperature of the antifreeze by looking at the scale displayed on the scale display module 111 according to the corresponding color.

[0048] After the test is completed, the user squeezes the airbag 1 again. Under the action of air pressure, the antifreeze is discharged out of the cavity 13 along the inlet / outlet channel 14 and the suction tube 4. At this time, the freezing point temperature test of the antifreeze is completed.

[0049] In this embodiment, the principle of measuring the density of antifreeze with a buoyancy ball is based on Archimedes' law of buoyancy and the physical property that the density of a liquid changes with temperature. That is, if the density of the buoyancy ball is less than the density of the liquid, the ball floats; if the density of the buoyancy ball is greater than the density of the liquid, the ball sinks; if the density of the buoyancy ball is equal to the density of the liquid, the ball is suspended in the liquid, and the density of the liquid is the density of the ball.

[0050] The principle behind squeezing the airbag to allow liquid to enter / expel is based on the difference between the inertia of airflow / liquid column and the rebound speed of the airbag, creating a brief effect. First, the airbag is completely squeezed flat (expelling the air inside), and then the fingers are quickly released. At this moment, the external liquid is forced into the cavity by atmospheric pressure. The airbag rebounds elastically, creating a momentary negative pressure inside the cavity, causing the liquid to be drawn into the cavity due to upward inertia. Then, the airbag is slowly squeezed flat again, and the liquid inside the cavity is slowly squeezed out of the channel. At this time, the air pressure is greater than the liquid inertia, so the liquid is completely discharged along the channel under the combined action of air pressure and gravity.

[0051] It should be noted that the length and diameter of the liquid inlet / outlet channel 14 and the diameter of the airbag opening 16 in this embodiment can be set according to the actual situation. This embodiment does not limit them and can refer to the existing technology, as long as it can realize the entry / exit of liquid by squeezing the airbag by hand.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. Freezing point determination can be achieved through a purely mechanical combination of shell, air bladder, and multiple buoyancy balls of different densities, which reduces manufacturing costs.

[0054] 2. The shell and airbag form a grippable whole, and the liquid is introduced by "one-time squeezing and suction" and discharged by "two-time squeezing and discharge". The whole process can be completed with only one hand.

[0055] 3. The freezing point scale is directly set on the shell, corresponding to the buoyancy ball, so users can quickly judge the temperature of the antifreeze without conversion, reducing misjudgment.

[0056] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A portable anti-freeze tester characterized by, The shell, the air bag, and several buoyancy balls with different densities are included. The shell is internally provided with a cavity for containing anti-freezing liquid, an inlet-outlet channel, and an air bag opening, wherein the inlet-outlet channel and the air bag opening are in communication with the interior of the cavity; the several buoyancy balls with different densities are arranged in the cavity; and one end of the air bag is mounted on the air bag opening.

2. The portable anti -icing fluid tester of claim 1, wherein, The surface of the shell is provided with a visual window.

3. The portable anti -icing fluid tester of claim 1, wherein, The surface of the shell is provided with a scale display module corresponding to the buoyancy balls with different densities.

4. The portable anti -icing fluid tester of claim 1, wherein, The inlet-outlet channel is externally connected with a liquid suction tube.

5. The portable anti -icing fluid tester of claim 1, wherein, The density of the buoyancy ball ranges from 1.044 to 1.0746 g / m 3 .

6. The portable anti -icing fluid tester of claim 3, wherein, The freezing point scale range displayed by the scale display module is -45°-0°.

7. The portable anti -icing fluid tester of claim 1, wherein, The outer wall of the shell is provided with anti-skid lines.

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