Bimetallic thermometer

Abstract

The utility model relates to bimetallic thermometer technical field, concretely for bimetallic thermometer, including thermometer casing, be provided with bimetallic strip in thermometer casing, the top of bimetallic strip is connected with central shaft, the bottom of bimetallic strip is connected with fixed part, the inner wall bottom of thermometer casing is fixed with mounting, the end surface of mounting is provided with mounting groove, the fixed part is detachably inserted in mounting groove, the utility model discloses the mounting structure of bimetallic strip is optimized, the bottom of bimetallic strip is connected fixed part, and the bottom fixed mounting of thermometer casing, the positioning of bimetallic strip is realized through the adaptive connection of fixed part and mounting, the installation mode of traditional bimetallic strip is changed, effectively reduces the direct influence of outside impact, vibration to bimetallic strip, makes bimetallic strip not easy to be damaged, significantly improves its structural stability and service life.

Description

Technical Field

[0001] This utility model relates to the field of bimetallic thermometer technology, specifically to bimetallic thermometers. Background Technology

[0002] A bimetallic thermometer is a temperature measuring instrument that utilizes the thermal expansion and contraction properties of a bimetallic strip. It has a simple structure, low cost, and intuitive readings, and is widely used in industrial production, civilian equipment, and other scenarios.

[0003] Existing bimetallic thermometers employ an assembly structure where the central shaft connects to the top of the bimetallic strip, and the bottom of the strip is directly positioned by a fastener. This results in the bimetallic strip, as the core sensing component, being directly exposed and located at the lowest end of the thermometer sleeve. This design leaves the bimetallic strip lacking effective support, protection, and cushioning. External vibrations, collisions, or accidental drops directly impact the bimetallic strip, easily causing it to bend, break, or loosen. This leads to decreased measurement accuracy, malfunctions, or even render the thermometer unusable. For a long time, it has suffered from poor drop resistance and weak shock resistance. Therefore, we propose the bimetallic thermometer. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a bimetallic thermometer, comprising a thermometer sleeve, a bimetallic strip disposed within the thermometer sleeve, a central shaft connected to the top end of the bimetallic strip, a fixing member connected to the bottom end of the bimetallic strip, an mounting member fixed to the bottom end of the inner wall of the thermometer sleeve, an mounting groove formed on the end face of the mounting member, and the fixing member being detachably inserted into the mounting groove.

[0005] In some embodiments, the inner wall of the mounting groove is provided with a plurality of elastic components, and each elastic component is symmetrically distributed on both sides of the inner wall of the mounting groove.

[0006] In some embodiments, the elastic component includes a groove, a transmission block, and an elastic member. The groove is formed on the inner wall of the mounting groove, the transmission block is slidably disposed in the groove, one end of the elastic member is fixedly connected to the bottom of the groove, the other end of the elastic member is fixedly connected to one end of the transmission block, and a mutually cooperating snap-fit ​​component is provided between the end of the transmission block away from the elastic member and the fixing member.

[0007] In some embodiments, the snap-fit ​​assembly includes a slot and a block. The slot is formed on the outer wall of the fixing member, and the block is fixed to the end of the transmission block away from the elastic member. The shape of the slot is adapted to the shape of the block, and the block can snap into the slot.

[0008] In some embodiments, the inner wall of the groove is provided with a limiting groove extending along its length direction, the outer wall of the transmission block is fixed with a limiting block, the limiting block is slidably disposed in the limiting groove, and an anti-detachment block is fixed at the opening of the limiting groove, the anti-detachment block is used to restrict the limiting block from detaching from the limiting groove.

[0009] In some embodiments, a fixing rod is fixedly connected to the outer wall of the fixing member, and a guide block is installed at the end of the fixing rod away from the fixing member. A guide groove extending along its axial direction is opened on the inner wall of the thermometer sleeve, and the guide block slides in cooperation with the guide groove.

[0010] In some embodiments, a fixing block is fixedly connected to the bottom end of the mounting component, and a soft pad is wrapped around the outer periphery of the fixing block, the soft pad being tightly fitted to the bottom end of the inner wall of the thermometer sleeve.

[0011] This utility model has at least the following beneficial effects: (1) This utility model optimizes the installation structure of the bimetallic strip by connecting a fixing component to the bottom end of the bimetallic strip and fixing an installation component to the bottom end of the thermometer sleeve. The bimetallic strip is positioned and fixed by the matching connection between the fixing component and the installation component. This changes the traditional installation method of the bimetallic strip, effectively reduces the direct impact of external shocks and vibrations on the bimetallic strip, makes the bimetallic strip less susceptible to damage, and significantly improves its structural stability and service life.

[0012] (2) By setting the matching structure of guide block and guide groove, elastic component and snap-fit ​​component, bottom fixing block and soft pad, this utility model realizes the precise and fast assembly and stable locking of fixing component and mounting component. At the same time, by using the deformation buffer of elastic component and the double protection of soft pad, it effectively absorbs impact and vibration energy, reduces the impact on bimetallic strip, and greatly improves the installation convenience, structural stability and shock resistance of thermometer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation component structure of this utility model; Figure 3 This is a schematic diagram of the fixing block structure of this utility model; Figure 4 This is a schematic diagram of the card block structure of this utility model; Figure 5 This is a schematic diagram of the guide block structure of this utility model.

[0014] In the diagram: 1-Thermometer sleeve; 2-Bimetallic strip; 3-Central shaft; 4-Fixed component; 5-Mounting component; 6-Mounting groove; 7-Groove; 8-Transmission block; 9-Slot; 10-Slot block; 11-Elastic component; 12-Limiting groove; 13-Limiting block; 14-Anti-detachment block; 15-Fixing rod; 16-Guide block; 17-Guide groove; 18-Fixing block; 19-Soft pad. Detailed Implementation

[0015] 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.

[0016] Example 1: Please refer to Figure 1-4 This utility model provides a bimetallic thermometer technical solution: a bimetallic thermometer including a thermometer sleeve 1, a bimetallic strip 2 disposed inside the thermometer sleeve 1, a central shaft 3 connected to the top end of the bimetallic strip 2, a fixing member 4 connected to the bottom end of the bimetallic strip 2, an installation member 5 fixed to the bottom end of the inner wall of the thermometer sleeve 1, an installation groove 6 opened on the end face of the installation member 5, and the fixing member 4 is detachably inserted into the installation groove 6.

[0017] Through the above technical solution: In use, the support structure formed by the fixing part 4 and the mounting part 5 at the bottom of the thermometer sleeve 1 not only secures the bimetallic strip 2 but also provides cushioning protection, preventing the core bimetallic strip 2 from easily bending, breaking, or loosening, thus enhancing its impact resistance compared to traditional designs. Regarding measurement accuracy, the bimetallic strip 2 is precisely inserted into the mounting slot 6 via the fixing part 4, preventing misalignment. When the temperature changes, it accurately transmits the deformation to the central shaft 3, which then drives the pointer reading, eliminating jamming or inaccuracies. The measurement error is significantly smaller than traditional designs, and the accuracy is not easily diminished over long-term use. Installation and maintenance are also particularly convenient. The bimetallic strip 2 has multiple layers of protection, making it less prone to wear and corrosion. Furthermore, one sleeve can accommodate bimetallic strips 2 of different specifications, adapting to measurements in different temperature ranges, resulting in higher cost-effectiveness.

[0018] Example 2: Please refer to Figure 1-5 This utility model provides a bimetallic thermometer technical solution: the bimetallic thermometer also includes multiple elastic components, each elastic component being symmetrically distributed on both sides of the inner wall of the mounting groove 6.

[0019] The elastic component includes a groove 7, a transmission block 8, and an elastic element 11. The groove 7 is formed on the inner wall of the mounting groove 6. The transmission block 8 is slidably disposed in the groove 7. One end of the elastic element 11 is fixedly connected to the bottom of the groove 7, and the other end of the elastic element 11 is fixedly connected to one end of the transmission block 8. A locking component is provided between the end of the transmission block 8 away from the elastic element 11 and the fixing element 4.

[0020] The snap-fit ​​assembly includes a slot 9 and a block 10. The slot 9 is formed on the outer wall of the fixing member 4, and the block 10 is fixed to the end of the transmission block 8 away from the elastic member 11. The shape of the slot 9 is adapted to the shape of the block 10, and the block 10 can be snapped into the slot 9.

[0021] The inner wall of the groove 7 is provided with a limiting groove 12 extending along its length direction. The outer wall of the transmission block 8 is fixed with a limiting block 13. The limiting block 13 is slidably disposed in the limiting groove 12. An anti-detachment block 14 is fixed at the opening of the limiting groove 12. The anti-detachment block 14 is used to restrict the limiting block 13 from leaving the limiting groove 12.

[0022] A fixing rod 15 is fixedly connected to the outer wall of the fixing member 4. A guide block 16 is installed at the end of the fixing rod 15 away from the fixing member 4. A guide groove 17 extending along its axial direction is opened on the inner wall of the thermometer sleeve 1. The guide block 16 and the guide groove 17 are slidably engaged.

[0023] The bottom of the mounting component 5 is fixedly connected to a fixing block 18, and the outer periphery of the fixing block 18 is wrapped with a soft pad 19, which is in close contact with the bottom of the inner wall of the thermometer sleeve 1.

[0024] Through the above technical solution: When using the fixture 4 and the mounting part 5, first locate the guide block 16 at the end of the fixing rod 15 on the fixture 4 and align it with the guide groove 17 on the inner wall of the thermometer sleeve 1. These two are like "slide rail and slider". Slide down along the guide groove 17 and the fixture 4 will not be inserted crookedly, making it easy to align with the mounting groove 6.

[0025] Once the guide block 16 slides to the bottom of the guide groove 17, the fixing part 4 will also be inserted into the mounting groove 6. At this time, the outer wall of the fixing part 4 will first press against the locking block 10 on the transmission block 8, pushing the locking block 10 and the transmission block 8 together into the groove 7, while squeezing the elastic part 11 (such as a spring) in the groove 7.

[0026] Insert the fastener 4 all the way to the bottom, and the slot 9 on its outer wall will align perfectly with the locking block 10. At this point, the compressed elastic element 11 will spring back, pushing the transmission block 8 outward and causing the locking block 10 to engage in the slot 9. Because several such elastic components are symmetrically installed on both sides of the mounting slot 6, all the locking blocks 10 will engage the fastener 4 together, improving stability.

[0027] If the thermometer is accidentally dropped or vibrated, these elastic components can also play a protective role. The impact force will be transmitted to the transmission block 8 first, pushing it to squeeze the elastic element 11. The elastic element 11 absorbs the impact force through expansion and contraction, reducing the force and transmitting it directly to the fixing element 4. In this way, the bimetallic strip 2 on top will not be shaken or broken.

[0028] In addition, the bottom of the mounting component 5 is connected to a fixing block 18, which is covered with a soft pad 19. The soft pad 19 is tightly attached to the bottom of the thermometer sleeve 1. This soft pad 19 acts like a "buffer pad", which can absorb some of the impact force and form a double protection with the elastic component, protecting the bimetallic strip 2 better and making it less susceptible to damage, thus making the overall equipment more shockproof and drop-resistant.

[0029] 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.

[0030] 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 bimetallic thermometer, comprising a thermometer sheath (1), characterized in that: The thermometer sleeve (1) is provided with a bimetallic strip (2), the top end of the bimetallic strip (2) is connected to a central shaft (3), the bottom end of the bimetallic strip (2) is connected to a fixing member (4), the bottom end of the inner wall of the thermometer sleeve (1) is fixed with an installation member (5), the end face of the installation member (5) is provided with an installation groove (6), and the fixing member (4) is detachably inserted into the installation groove (6). The inner wall of the mounting groove (6) is provided with a plurality of elastic components, each of which is symmetrically distributed on both sides of the inner wall of the mounting groove (6). Each elastic component includes a groove (7), a transmission block (8), and an elastic element (11). The groove (7) is opened in the inner wall of the mounting groove (6). The transmission block (8) is slidably disposed in the groove (7). One end of the elastic element (11) is fixedly connected to the bottom of the groove (7). The other end of the elastic element (11) is fixedly connected to one end of the transmission block (8). The end of the transmission block (8) away from the elastic element (11) is provided with a mutually cooperating snap-fit ​​component between it and the fixing element (4).

2. The bimetallic thermometer according to claim 1, characterized in that: The snap-fit ​​assembly includes a slot (9) and a snap-fit ​​block (10). The slot (9) is formed on the outer wall of the fixing member (4). The snap-fit ​​block (10) is fixed to the end of the transmission block (8) away from the elastic member (11). The shape of the slot (9) is adapted to the shape of the snap-fit ​​block (10), and the snap-fit ​​block (10) can be snapped into the slot (9).

3. The bimetallic thermometer according to claim 1, characterized in that: The inner wall of the groove (7) is provided with a limiting groove (12) extending along its length direction. The outer wall of the transmission block (8) is fixed with a limiting block (13). The limiting block (13) is slidably disposed in the limiting groove (12). An anti-detachment block (14) is fixed at the opening of the limiting groove (12). The anti-detachment block (14) is used to restrict the limiting block (13) from detaching from the limiting groove (12).

4. The bimetallic thermometer according to claim 1, characterized in that: A fixing rod (15) is fixedly connected to the outer wall of the fixing member (4). A guide block (16) is installed at the end of the fixing rod (15) away from the fixing member (4). A guide groove (17) extending along its axial direction is opened on the inner wall of the thermometer sleeve (1). The guide block (16) and the guide groove (17) are slidably engaged.

5. The bimetallic thermometer according to claim 1, characterized in that: The bottom end of the mounting component (5) is fixedly connected to a fixing block (18), and the outer periphery of the fixing block (18) is wrapped with a soft pad (19), which is in close contact with the bottom end of the inner wall of the thermometer sleeve (1).

Images