Novel high temperature thermometer

By combining the diaphragm temperature sensing component and the damping mechanism component, the problems of poor accuracy and low measuring range of high-temperature thermometers at high temperatures are solved, achieving high-precision measurement and accurate reset, and expanding the measuring range.

CN224552551UActive Publication Date: 2026-07-24FOSHAN CITY JIULONG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN CITY JIULONG MASCH CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The Bourdon tube in existing high-temperature thermometers is prone to failure at high temperatures, resulting in the inability to return to zero and reset, poor accuracy, and low measuring range.

Method used

The diaphragm temperature sensing component is used as the power mechanism. The diaphragm temperature sensing component is heated and deformed to push the pressure plate, which drives the damping mechanism component to work, causing the pointer to rotate to indicate the temperature. The damping effect of the damping mechanism component is combined to improve the measurement accuracy and reset accuracy. The range can be adjusted by adjusting the volume of the diaphragm temperature sensing component.

Benefits of technology

It achieves high precision, low error, and accurate resetting of temperature measurement at high temperatures, and expands the measurement range.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel high temperature thermometer, including bearing plate, diaphragm box temperature sensing component, damping movement core subassembly, pointer, the fixed top rod has on bearing plate, and the end of top rod is in abutment with diaphragm box temperature sensing component, and the end of bearing plate is connected with damping movement core subassembly, and the pointer is installed on damping movement core subassembly, this high temperature thermometer uses diaphragm box temperature sensing component as power mechanism, when working, diaphragm box temperature sensing component is heated and generates deformation, and then pushes bearing plate, makes bearing plate drive damping movement core subassembly work, to make the pointer rotate and indicate temperature information, realize the function of temperature measurement, make this high temperature thermometer have high temperature precision, small error, reset accurate advantage, can adjust the upper limit of temperature sensing temperature through increasing the volume of diaphragm box temperature sensing component simultaneously, and increase range.
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Description

Technical Field

[0001] This utility model relates to the field of temperature gauge technology, and in particular to a novel high-temperature temperature gauge. Background Technology

[0002] Existing high-temperature thermometers use a Bourdon tube as the power component. If the temperature exceeds 250°C, the Bourdon tube will fail, unable to return to zero or reset. It is also prone to exceeding the range, which can damage the Bourdon tube. As a result, existing high-temperature thermometers have poor accuracy and a short range. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a novel high-temperature thermometer, including a pressure plate, a diaphragm temperature sensing component, a damping mechanism component, and a pointer; a top rod is fixed on the pressure plate, the end of the top rod abuts against the diaphragm temperature sensing component, the end of the pressure plate is connected to the damping mechanism component, and the pointer is mounted on the damping mechanism component.

[0004] According to some embodiments of this utility model, the pressure plate is fixedly connected to a fixing plate, and the diaphragm temperature sensing component and the damping mechanism component are fixedly installed on the fixing plate.

[0005] According to some embodiments of the present invention, the pressure plate includes a main board, a connecting plate, and an end plate. One end of the main board is bent to form the connecting plate. The main board and the connecting plate are arranged perpendicularly, and the connecting plate is connected to the fixing plate. The other end of the main board is bent to form the end plate. The end plate is arranged horizontally, and a connecting rod is rotatably connected between the end plate and the damping mechanism assembly.

[0006] According to some embodiments of the present invention, the fixing plate includes a flat plate, a first mounting plate, and a second mounting plate. The flat plate is bent to form the first mounting plate and the second mounting plate. The first mounting plate and the second mounting plate are arranged perpendicularly to the flat plate. The diaphragm temperature sensing component is mounted on the first mounting plate, and the second mounting plate is connected to the damping mechanism component.

[0007] According to some embodiments of the present invention, the membrane box temperature sensing assembly includes a membrane box, a capillary tube, and a temperature sensing cylinder. The deformable surface of the membrane box abuts against the end of the top rod, and the membrane box is connected to the temperature sensing cylinder through the capillary tube.

[0008] According to some embodiments of the present invention, the damping mechanism assembly includes a sector tooth and a column tooth. The sector tooth is connected to a connecting rod, and the sector tooth meshes with the column tooth. A pointer is installed at the lower end of the shaft of the column tooth.

[0009] According to some embodiments of the present invention, the damping mechanism assembly further includes a large plate, a small plate, and a hairspring. The large plate and the small plate are connected by a support column. The fan-shaped tooth and the column tooth are rotatably mounted between the large plate and the small plate. The hairspring is fitted on the column tooth. One end of the hairspring is connected to the column tooth, and the other end of the hairspring is connected to the support column. The fan-shaped tooth is connected to the end of the pressure plate through a connecting rod.

[0010] According to some embodiments of this utility model, a damping cylinder is installed at the upper end of the shaft of the column tooth.

[0011] According to some embodiments of the present invention, the sector tooth includes an arc portion, a rotating portion, and a sector tooth portion. One end of the arc portion is connected to the other end of the Bourdon tube, and the other end of the arc portion is connected to the rotating portion. The rotating portion is rotatably mounted between the large plate and the small plate. The sector tooth portion is connected to the rotating portion through a connecting rod, and the sector tooth portion meshes with the column tooth.

[0012] This high-temperature thermometer uses a diaphragm sensing component as its power mechanism. During operation, the diaphragm sensing component deforms when heated, which in turn pushes the pressure plate. The pressure plate then drives the damping mechanism, causing the pointer to rotate and indicate the temperature information, thus achieving the temperature measurement function. This gives the high-temperature thermometer the advantages of high temperature accuracy, small error, and accurate reset. Furthermore, the upper limit of the sensing temperature can be adjusted by increasing the volume of the diaphragm sensing component, thereby increasing the measuring range.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a perspective view of an embodiment of the present utility model. Figure 1 ; Figure 2 This is a perspective view of an embodiment of the present utility model. Figure 2 ; Figure 3 This is a top view schematic diagram of an embodiment of the present utility model; Figure 4 This is a schematic diagram of the damping mechanism assembly according to an embodiment of the present invention. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0017] Reference Figures 1 to 3 A novel high-temperature thermometer includes a pressure plate 100, a diaphragm temperature sensing component 200, a damping mechanism component 300, and a pointer; a top rod 500 is fixed on the pressure plate 100, the end of the top rod 500 abuts against the diaphragm temperature sensing component 200, the end of the pressure plate 100 is connected to the damping mechanism component 300, and the pointer is installed on the damping mechanism component 300.

[0018] This high-temperature thermometer uses a diaphragm sensing component 200 as its power mechanism. During operation, the diaphragm sensing component 200 deforms when heated, which in turn pushes the pressure plate 100. The pressure plate 100 then drives the damping mechanism 300, causing the pointer to rotate and indicate temperature information, thus achieving the function of temperature measurement. This gives the high-temperature thermometer the advantages of high temperature accuracy, small error, and accurate reset. At the same time, the upper limit of the sensing temperature can be adjusted by increasing the volume of the diaphragm sensing component 200, thereby increasing the measuring range.

[0019] Reference Figure 1 , 2 As shown, the pressure plate 100 is fixedly connected to the fixing plate 600, which is fixed to the watch case. The diaphragm temperature sensing component 200 and the damping mechanism component 300 are fixedly installed on the fixing plate 600.

[0020] Specifically, the pressure plate 100 includes a main plate 110, a connecting plate 120, and an end plate 130. One end of the main plate 110 is bent to form the connecting plate 120. The main plate 110 and the connecting plate 120 are set vertically, and the connecting plate 120 is connected to the fixing plate 600. The other end of the main plate 110 is bent to form the end plate 130. The end plate 130 is set horizontally, and a connecting rod 140 is rotatably connected between the end plate 130 and the damping mechanism assembly 300.

[0021] Specifically, the fixing plate 600 includes a flat plate 610, a first mounting plate 620, and a second mounting plate 630. The flat plate 610 is bent to form the first mounting plate 620 and the second mounting plate 630, which are perpendicular to the flat plate 610. The first mounting plate 620 has a side plate 621 perpendicular to it, and the side plate 621 is connected to the connecting plate 120. The diaphragm temperature sensing component 200 is mounted on the first mounting plate 620, and the second mounting plate 630 is connected to the damping mechanism component 300.

[0022] Reference Figure 2 As shown, the diaphragm temperature sensing assembly 200 includes a diaphragm 210, a capillary tube 220, and a temperature sensing cylinder 230. The deformable surface of the diaphragm 210 abuts against the end of the top rod 500, and the diaphragm 210 is connected to the temperature sensing cylinder 230 through the capillary tube 220.

[0023] In this process, the temperature sensing cylinder 230 comes into contact with the object being measured. As the temperature of the object rises, the liquid inside the temperature sensing cylinder 230 expands to a certain extent. The liquid then enters the diaphragm box 210 through the capillary tube 220, causing the deformation surface of the diaphragm box 210 to deform.

[0024] When the temperature of the object being measured drops, the liquid inside the temperature sensing cylinder 230 stops expanding, the liquid stops entering the diaphragm box 210, and returns to the temperature sensing cylinder 230 through the capillary tube 220.

[0025] Reference Figure 4 As shown, the damping mechanism assembly 300 includes a sector tooth 310 and a column tooth 320. The sector tooth 310 is connected to the connecting rod 140, and the sector tooth 310 meshes with the column tooth 320. A pointer is installed at the lower end of the shaft of the column tooth 320.

[0026] The connecting rod 140 pulls the sector tooth 310, causing the sector tooth 310 to drive the column tooth 320 to rotate, thereby causing the pointer to rotate synchronously with the column tooth 320 and indicating the corresponding reading on the dial.

[0027] The damping mechanism assembly 300 also includes a large plate 330, a small plate 340, and a hairspring 350. The large plate 330 is fixedly connected to the second mounting plate 630. The large plate 330 and the small plate 340 are connected by a support column 360. The fan-shaped tooth 310 and the column tooth 320 are rotatably mounted between the large plate 330 and the small plate 340. The hairspring 350 is fitted on the column tooth 320. One end of the hairspring 350 is connected to the column tooth 320, and the other end of the hairspring 350 is connected to the support column 360. The fan-shaped tooth 310 is connected to the end of the pressure plate 100 through a connecting rod 140.

[0028] Meanwhile, because the 350 hairspring has a certain damping effect, it can reduce pointer jitter and excessive deflection, thus making the measurement results more stable and reliable.

[0029] To further improve the stability and reliability of the measurement results, a damping cylinder 370 is installed on the upper end of the shaft of the column tooth 320. The damping effect of the damping cylinder 370 is used to reduce pointer jitter and excessive deflection.

[0030] Reference Figure 4 As shown, specifically, the sector tooth 310 includes an arc portion 311, a rotating portion 312, and a sector tooth portion 313. One end of the arc portion 311 is connected to the connecting rod 140, and the other end of the arc portion 311 is connected to the rotating portion 312. The rotating portion 312 is rotatably mounted between the large plate 330 and the small plate 340, and the sector tooth portion 313 meshes with the column tooth 320.

[0031] The connecting rod 140 exerts a small force on the sector tooth 310, which can be amplified by the arc portion 311, so that the sector tooth portion 313 can drive the column tooth 320 to rotate, and the small pressure is indicated by the pointer, thereby improving the accuracy of pressure indication.

[0032] The rotating part 312 is rotatably mounted between the large plate 330 and the small plate 340, and the sector tooth part 313 is connected to the rotating part 312 through the connecting rod 140.

[0033] Further explanation of the working principle: 1. In the initial state, the temperature sensing cylinder 230 remains stable, the diaphragm 210 does not deform, the pressure plate 100 is not subjected to the thrust of the diaphragm 210, and the column tooth 320, under the reaction force of the hairspring 350, makes the pointer point to the zero mark of the dial.

[0034] 2. When the temperature sensing cylinder 230 comes into contact with the body being measured, the liquid inside the temperature sensing cylinder 230 expands due to the temperature of the body being measured. The liquid enters the diaphragm box 210 through the capillary tube 220, causing the deformation surface of the diaphragm box 210 to deform, which in turn pushes the top rod 500, causing the main plate 110 of the pressure plate 100 to be pushed by the force, causing the end plate 130 to move away from the diaphragm box 210 along with the main plate 110, so that the end pulls the sector tooth 310 through the pull rod. 3. When the sector teeth 310 are pulled by the pull rod, they cause the column teeth 320 to rotate, thereby causing the pointer to rotate synchronously with the column teeth 320 and display the corresponding reading on the dial; 4. After the temperature measurement is completed, the liquid in the temperature sensing cylinder 230 no longer expands due to heat. The liquid gradually returns to the diaphragm box 210 through the capillary tube 220, causing the deformation surface of the diaphragm box 210 to gradually return to its original position. This releases the thrust on the pressure plate 100, which gradually decreases. At the same time, the column teeth 320, under the reaction force of the hairspring 350, drive the pointer and column teeth 320 to return to their original positions, and the pointer returns to zero.

[0035] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present 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 the present utility model.

Claims

1. A novel high-temperature thermometer, characterized in that, The device includes a pressure plate (100), a diaphragm temperature sensing assembly (200), a damping mechanism assembly (300), and a pointer. A top rod (500) is fixed on the pressure plate (100), the end of the top rod (500) abuts against the diaphragm temperature sensing assembly (200), the end of the pressure plate (100) is connected to the damping mechanism assembly (300), and the pointer is mounted on the damping mechanism assembly (300).

2. The novel high-temperature thermometer according to claim 1, characterized in that, The pressure plate (100) is fixedly connected to a fixing plate (600), and the diaphragm temperature sensing component (200) and the damping mechanism component (300) are fixedly installed on the fixing plate (600).

3. The novel high-temperature thermometer according to claim 2, characterized in that, The pressure plate (100) includes a main plate (110), a connecting plate (120), and an end plate (130). One end of the main plate (110) is bent to form the connecting plate (120). The main plate (110) and the connecting plate (120) are arranged perpendicularly. The connecting plate (120) is connected to the fixing plate (600). The other end of the main board (110) is bent to form the end plate (130), the end plate (130) is horizontally arranged, and a connecting rod (140) is rotatably connected between the end plate (130) and the damping mechanism assembly (300).

4. The novel high-temperature thermometer according to claim 2, characterized in that, The fixing plate (600) includes a flat plate (610), a first mounting plate (620), and a second mounting plate (630). The flat plate (610) is bent to form the first mounting plate (620) and the second mounting plate (630). The first mounting plate (620) and the second mounting plate (630) are arranged perpendicularly to the flat plate (610). The first mounting plate (620) is provided with a side plate (621) perpendicular to it. The side plate (621) is connected to the pressure plate (100). The diaphragm temperature sensing component (200) is mounted on the first mounting plate (620), and the second mounting plate (630) is connected to the damping mechanism component (300).

5. The novel high-temperature thermometer according to claim 4, characterized in that, The membrane-sensing assembly (200) includes a membrane (210), a capillary (220), and a sensing cylinder (230). The deformable surface of the membrane (210) abuts against the end of the top rod (500), and the membrane (210) is connected to the sensing cylinder (230) through the capillary (220).

6. The novel high-temperature thermometer according to claim 4, characterized in that, The damping mechanism assembly (300) includes a sector tooth (310) and a column tooth (320). The sector tooth (310) is connected to the connecting rod (140), and the sector tooth (310) meshes with the column tooth (320). A pointer is installed at the lower end of the shaft of the column tooth (320).

7. The novel high-temperature thermometer according to claim 6, characterized in that, The damping mechanism assembly (300) further includes a large plate (330), a small plate (340), and a hairspring (350). The large plate (330) is fixedly connected to the second mounting plate (630). The large plate (330) and the small plate (340) are connected by a support column (360). The fan-shaped tooth (310) and the column tooth (320) are rotatably mounted between the large plate (330) and the small plate (340). The hairspring (350) is fitted on the column tooth (320). One end of the hairspring (350) is connected to the column tooth (320), and the other end of the hairspring (350) is connected to the support column (360). The fan-shaped tooth (310) is connected to the end of the pressure plate (100) through a connecting rod (140).

8. The novel high-temperature thermometer according to claim 7, characterized in that, A damping cylinder (370) is installed on the upper end of the shaft of the column tooth (320).

9. The novel high-temperature thermometer according to claim 7, characterized in that, The sector tooth (310) includes an arc portion (311), a rotating portion (312), and a sector tooth portion (313). One end of the arc portion (311) is connected to the connecting rod (140), and the other end of the arc portion (311) is connected to the rotating portion (312). The rotating portion (312) is rotatably mounted between the large plate (330) and the small plate (340). The sector tooth portion (313) meshes with the column tooth (320).