Thermometer easy to read display value
By introducing an arc-shaped reflector and a convex lens observation window into the thermometer, the difficulty of keeping the line of sight horizontal for reading in existing thermometers is solved, and the effect of conveniently reading the temperature at a roughly horizontal angle is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU KAISER ELECTRONIC INSTR CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
Existing thermometers require the user to keep their line of sight horizontal when reading the mercury column temperature, which is inconvenient.
A thermometer with an easy-to-read display value was designed. By setting an arc-shaped reflector and a convex lens observation window inside the range display end, the image of the mercury column is widened by the arc-shaped reflector and further magnified by the convex lens. Combined with the design of the protective shell, the temperature can be easily read at a roughly horizontal angle.
This significantly improves the convenience and accuracy of mercury column reading without requiring strict eye level.
Smart Images
Figure CN224163265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical equipment technology, specifically to a thermometer with an easy-to-read display value. Background Technology
[0002] A clinical thermometer, also known as a "medical thermometer" or, in Guangdong, Hong Kong, and Taiwan, a thermometer called a "thermal probe," is a tool used to measure the highest temperature ever recorded by a human or animal. The lower part of the thermometer, near the bulb, has a narrow, curved neck. When measuring body temperature, the mercury in the display section expands as the temperature rises, being forced through the thin tube into the straight tube and rising to a certain position within the tube. When thermal equilibrium is reached with body temperature, the mercury column remains constant. When the outside temperature is low, the mercury contracts, breaking at the narrow, curved neck. This prevents the mercury in the thin tube from flowing back into the display section, maintaining the height reached when the mercury column is in contact with the body. Therefore, even when it is not in contact with the body, it still represents the body temperature. The triangular prism design makes its sides act like convex lenses, providing magnification. Because the mercury column in a thermometer is very thin, it is difficult to observe directly. The magnification effect of a triangular prism can make the position of the mercury column more clearly, thus making it easier to read the value. However, even with the magnification effect, the line of sight must be kept horizontal with the mercury column for the magnification to work. Therefore, the angle is often rotated repeatedly to observe the position of the mercury column, which is quite cumbersome. Therefore, a thermometer with an easy-to-read display value is designed to solve the above problems. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this invention provides a thermometer with an easily readable display value, solving the problem that a single convex lens still requires the mercury column to be kept horizontal with the line of sight to achieve a magnifying effect.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides an easily readable thermometer, comprising: a range display end and a glass bulb. The front end of the range display end is marked with a scale. The upper end of the glass bulb is connected to the interior of the range display end through a capillary tube and a constriction. An arc-shaped reflector is inserted and connected inside the range display end and at the rear end of the capillary tube. A protective shell is fitted on the outer surface of the range display end. A slot is provided on the front surface of the protective shell. A long strip-shaped convex lens observation window is fixedly connected inside the slot at the front end of the protective shell. The upper end of the range display end extends to the upper end of the protective shell. A cover is connected to the upper end of the protective shell by a snap fastener.
[0008] Preferably, both sides of the range display end are arc-shaped, and observation ports are provided on both the left and right sides of the protective shell.
[0009] Preferably, the lower end of the protective shell is connected to a protective end cap via a bayonet, and the glass bulb is inserted into the interior of the protective end cap.
[0010] Preferably, the lower inner ends of the protective outer shell, the cover, and the protective end cap are all fitted with rubber protective pads.
[0011] Preferably, the outer sides of the protective shell, the cover, and the protective end cap are all arc-shaped.
[0012] Preferably, the internal scale of the range display terminal is marked in red at the 37.2 degrees Celsius, 38 degrees Celsius and 39 degrees Celsius positions.
[0013] Preferably, a backplate is inserted and connected to the internal rear end of the range display terminal, and the backplate is white.
[0014] (III) Beneficial Effects
[0015] This invention provides a thermometer with an easily readable display value, which, compared with the prior art, has at least the following advantages:
[0016] This easy-to-read thermometer displays the image of the mercury column inside the capillary tube on a circular reflector, creating a widened image. This image is then magnified again by a convex lens on the protective casing. With just a roughly horizontal angle, the position of the mercury column can be observed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a diagram of the internal structure of this utility model;
[0019] Figure 3 This is an internal sectional view of the present invention;
[0020] Figure 4 This is a cross-sectional view of the upper part of this utility model;
[0021] Figure 5 This is a structural diagram of the range display terminal of this utility model.
[0022] In the diagram: 1. Range display end; 2. Bulb; 3. Arc reflector; 4. Protective housing; 5. Convex lens; 6. Cover; 21. Observation port; 22. Protective end cover; 23. Back plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-5 This utility model provides a technical solution: an easily readable thermometer, comprising: a range display end 1 and a glass bulb 2. The front end of the range display end 1 is marked with a scale. The upper end of the glass bulb 2 is connected to the interior of the range display end 1 through a capillary tube and a constriction. An arc-shaped reflector 3 is inserted and connected inside the range display end 1 and at the rear end of the capillary tube. A protective shell 4 is fitted on the outer surface of the range display end 1. A slot is provided on the front surface of the protective shell 4. A long strip-shaped convex lens observation window 5 is fixedly connected inside the slot at the front end of the protective shell 4. The upper end of the range display end 1 extends to the upper end of the protective shell 4. A cover 6 is connected to the upper end of the protective shell 4 by a snap fastener.
[0025] In use, insert the glass bulb 2 downwards with the scale inside the range display terminal 1 aligned with the slot in the protective casing 4, then close the cover 6 to fix the thermometer in place. The mercury inside the glass bulb 2 flows through the capillary tube and constriction into the range display terminal 1, where it reflects a widened but unchanged image on the arc-shaped reflector 3, increasing the area of scattering. The user only needs to place it at a position roughly horizontal to their line of sight to observe this magnified image. Then, the image is further magnified by the magnifying effect of the convex lens viewing window 5. By comparing this image with the adjacent scale, the current temperature can be determined.
[0026] like Figure 1-4 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, both sides of the range display end are arc-shaped, and observation ports are provided on both the left and right sides of the protective shell.
[0027] Analysis of the above structure shows that the front surface and both sides of the range display terminal 1 are arc-shaped. When viewed from above, it can act as a convex lens. At the same time, the traditional side observation method can also be used, which can also act as a convex lens to assist in observation. The observation port 21 can help the user keep the line of sight horizontal.
[0028] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the lower end of the protective shell 4 is connected to the protective end cap 22 through a bayonet, and the glass bulb 2 is inserted and connected to the inside of the protective end cap 22.
[0029] Analysis of the above structure shows that after use, the protective end cap 22 is fastened to the lower end of the protective shell 4, and the inside of the glass bulb 2 is inserted into the inside of the protective end cap 22, which can serve as the range display end 1 and the glass bulb 2.
[0030] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the lower inner ends of the protective shell 4, the cover 6 and the protective end cover 22 are all fitted with rubber protective pads.
[0031] Analysis of the above structure shows that the rubber protective pad attached to the lower part of the inner shell 4 can protect the range display terminal 1 and the glass bulb 2. When the cover 6 is pressed down, the rubber protective pad attached to the lower part of the inner shell 4 and the cover 6 can not only protect the range display terminal 1 and the glass bulb 2, but also reduce the shaking of the range display terminal 1 and the glass bulb 2 inside the protective shell 4. The rubber protective pad inside the protective end cover 22 can wrap the glass bulb 2, reducing the risk of death from falling.
[0032] like Figure 1-4 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, the outer sides of the protective shell 4, the cover 6 and the protective end cover 22 are all arc-shaped.
[0033] Analysis of the above structure shows that the outer sides of the protective shell 4, the cover 6 and the protective end cap 22 are all arc-shaped, which can reduce discomfort caused by the corners when measuring body temperature.
[0034] like Figure 1-2 As shown in the figure, this utility model embodiment provides an implementation method. Based on the above implementation method, the internal scale of the range display terminal 1 is marked in red at the positions of 37.2 degrees Celsius, 38 degrees Celsius and 39 degrees Celsius.
[0035] Analysis of the above structure shows that body temperatures of 37.2 degrees Celsius, 38 degrees Celsius, and 39 degrees Celsius represent low-grade fever, moderate fever, and high fever, respectively, which are marked in bright red for easy identification.
[0036] like Figure 1-5 As shown, this utility model embodiment provides an implementation method. Based on the above implementation method, a back plate 23 is inserted and connected to the internal rear end of the range display terminal 1. The back plate 23 is white.
[0037] Analysis of the above structure shows that the white backplate 23 allows for better observation of the scale and the position of the mercury column.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A thermometer with an easy-to-read display value, characterized in that, include: The range display end (1) and the glass bulb (2) are provided. The front end of the range display end (1) is marked with a scale. The upper end of the glass bulb (2) is connected to the inside of the range display end (1) through a capillary tube and a constriction. An arc-shaped reflector plate (3) is inserted and connected inside the range display end (1) and at the rear end of the capillary tube. A protective shell (4) is provided on the outer surface of the range display end (1). A slot is provided on the front surface of the protective shell (4). A long strip-shaped convex lens observation window (5) is fixedly connected inside the slot at the front end of the protective shell (4). The upper end of the range display end (1) extends to the upper end of the protective shell (4). A cover (6) is connected to the upper end of the protective shell (4) by a snap fastener.
2. The thermometer with an easily readable display value according to claim 1, characterized in that: Both sides of the range display terminal (1) are arc-shaped, and observation ports (21) are provided on both the left and right sides of the protective shell (4).
3. The thermometer with an easily readable display value according to claim 1, characterized in that: The lower end of the protective shell (4) is connected to a protective end cap (22) via a bayonet, and the glass bulb (2) is inserted into the protective end cap (22).
4. A thermometer with an easily readable display value according to claim 3, characterized in that: The lower inner ends of the protective shell (4), the cover (6) and the protective end cap (22) are all fitted with rubber protective pads.
5. A thermometer with an easily readable display value according to claim 3, characterized in that: The outer sides of the protective shell (4), the cover (6) and the protective end cap (22) are all arc-shaped.
6. A thermometer with an easily readable display value according to claim 1, characterized in that: The internal scale of the range display terminal (1) is marked in red at the positions of 37.2 degrees Celsius, 38 degrees Celsius and 39 degrees Celsius.
7. A thermometer with an easily readable display value according to claim 1, characterized in that: The range display terminal (1) has a backplate (23) inserted and connected to its internal rear end. The backplate (23) is white.