A shock-resistant bimetallic thermometer

Abstract

The invention discloses a shockproof bimetallic thermometer, and relates to the technical field of bimetallic thermometers. The shockproof bimetallic thermometer includes a cleaning device. The shockproof bimetallic thermometer uses the cleaning device to pull the pull rope by hand, and sequentially moves up with the elastic vertical rope, the connecting plate, the outer scraper, and the inner scraper to scrape off the impurities adhering to the inner wall of the protective sleeve and the side of the temperature sensing tube. During the process of moving up the connecting plate, the outer scraper, and the inner scraper through the auxiliary parts, the spring is stretched. Under the joint hindrance of the solution pressure and the spring elastic force, the outer scraper and the inner scraper move up slowly, which can prevent excessive pulling force from causing excessive squeezing of the outer scraper, the inner scraper, the inner wall of the protective sleeve, and the side of the temperature sensing tube. The moving rod vertically penetrates into the limit tube, thereby ensuring that the outer scraper and the inner scraper move in the vertical direction. The structure is simple and easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of bimetallic thermometers, in particular to a shock-resistant bimetallic thermometer. Background Art

[0002] The bimetallic thermometer combines two metals with different linear expansion coefficients and fixes one end. When the temperature changes, the two metals expand differently, causing the pointer to deflect to indicate the temperature. This is a bimetallic thermometer.

[0003] When shock-resistant bimetallic thermometers detect the temperature of liquids, they are generally not covered with protective covers. However, the liquid flow rate in some parts of the tube is relatively fast, which constantly impacts the temperature sensing tube, shortening the life of the temperature sensing tube. In addition, some liquids contain many impurities, which adhere to the outer surface of the temperature sensing tube. When too many impurities accumulate, the detection accuracy of the temperature sensing element decreases. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a shock-resistant bimetallic thermometer, which can quickly remove impurities on the outside of the temperature sensing tube without taking out the temperature sensing tube, has a simple structure and is easy to operate.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a shock-resistant bimetallic thermometer, comprising a dial, a threaded connector fixedly connected to the bottom of the dial, a temperature sensing tube fixedly connected to the bottom of the threaded connector, a cleaning device provided on the outside of the temperature sensing tube, and the cleaning device threadedly connected to the threaded connector;

[0006] The cleaning device includes a scraping mechanism;

[0007] The scraping mechanism comprises:

[0008] A scraper, which is a structure adapted to the temperature sensing tube, and can move up and down in the vertical direction under the action of a pulling force, and is used to clean impurities on the outer wall of the temperature sensing tube;

[0009] The auxiliary part is a limiting structure matched with the scraping part, and the auxiliary part is used to limit the moving direction and distance of the scraping part.

[0010] Preferably, the top of the scraping mechanism is fixedly connected to the bottom of the threaded barrel, a protective cover is provided on the outside of the temperature sensing tube, the top of the protective cover is fixedly connected to the threaded barrel, the threaded barrel is threadedly connected to the threaded connector, a circular hole is opened on the side of the upper part of the protective cover, and a vertical hole is opened on the side of the lower part of the protective cover.

[0011] Preferably, the scraper includes an outer scraper, a connecting plate is fixedly connected to the inner side of the outer scraper, an inner scraper is fixedly connected to the side of the connecting plate close to the axis of the outer scraper, the inner scraper is scraped with a cleaning hole, an elastic vertical rope is fixedly connected to the top of the connecting plate, a pull rope is fixedly connected to the top of the elastic vertical rope, a fixing plate is fixedly connected to the inner wall of the protective cover, a sliding rod is fixedly connected to the top of the fixing plate, both ends of the sliding rod are fixedly connected to limiting bending rods, the sliding rod is arranged in a circular hole, and the sliding rod is wrapped around the elastic vertical rope.

[0012] Preferably, the auxiliary part includes a top plate, the top of the top plate is fixedly connected to the bottom of the threaded barrel, the bottom of the top plate is fixedly connected to a limiting barrel, the limiting barrel is slidably connected with a shift rod, the bottom of the shift rod is fixedly connected to the top of the connecting plate, the top of the connecting plate is fixedly connected with a spring, the bottom of the spring is fixedly connected with a bottom plate, the side of the bottom plate away from the axis of the threaded barrel is fixedly connected to the inner wall of the protective sleeve, the side of the protective sleeve is fixedly connected to a cross plate, and the side of the cross plate away from the protective sleeve is fixedly connected to an arc-shaped baffle.

[0013] Preferably, the two ends of the limit bending rod are respectively fixedly connected to the two ends of the sliding rod, and the limit bending rod and the sliding rod form a limit hole, and the upper part of the elastic vertical rope passes through the limit hole.

[0014] Preferably, there are six connecting plates in total, and the six connecting plates are equidistantly distributed in the circumferential direction of the protective sleeve.

[0015] Preferably, there are two shift rods, which are arranged on both sides of the axis of the limiting cylinder. The arc-shaped baffle can block the pull rope, the elastic vertical rope cannot move downward all the time, and the shift rod cannot be pulled out of the limiting cylinder.

[0016] The present invention provides a shock-resistant bimetallic thermometer, which has the following beneficial effects:

[0017] (1) The shock-resistant bimetallic thermometer uses a cleaning device. By pulling the pull rope by hand, the elastic vertical rope, the connecting plate, the outer scraper, and the inner scraper are moved up in sequence to scrape off the impurities adhering to the inner wall of the protective cover and the side of the temperature sensing tube. The structure is simple and easy to operate.

[0018] (2) The shock-resistant bimetallic thermometer has a scraping mechanism and two elastic vertical ropes to ensure that the outer scraper and the inner scraper are subjected to uniform tension. Under the joint hindrance of the solution pressure and the spring force, the outer scraper and the inner scraper move up slowly, and the solution moves up along the cleaning hole, reducing the resistance of the liquid and facilitating the vertical movement of the inner scraper. The solution passing through the cleaning hole flushes the impurities remaining on the inner scraper and brings them into the solution. The vertical hole facilitates the rapid outflow of impurities.

[0019] (3) The shock-resistant bimetallic thermometer uses auxiliary parts to stretch the spring during the upward movement of the connecting plate, the outer scraper and the inner scraper. Under the joint resistance of the solution pressure and the spring elastic force, the outer scraper and the inner scraper move up slowly, which can prevent excessive pulling force from causing excessive squeezing of the outer scraper, the inner scraper and the inner wall of the protective sleeve and the side of the temperature sensing tube, and the moving rod vertically penetrates into the limit cylinder, thereby ensuring that the outer scraper and the inner scraper move in the vertical direction.

[0020] (4) The shock-resistant bimetallic thermometer has an auxiliary part and a scraping mechanism. The scraping mechanism removes impurities through a scraping plate. The shift rod is slidably connected to the limit cylinder and plays a limiting role to ensure that the outer scraper and the inner scraper move in the vertical direction. The auxiliary part can prevent the scraping mechanism from moving too fast and facilitate the recovery of the scraping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 An exploded view of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the cleaning device of the present invention;

[0024] Figure 4 A top view of the cleaning device of the present invention;

[0025] Figure 5 An exploded view of the cleaning device of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the scraping mechanism of the present invention;

[0027] Figure 7 An exploded view of the scraping mechanism of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the scraping member of the present invention;

[0029] Fig. 9 It is a schematic structural diagram of the part where the outer scraper and the inner scraper are located in the present invention;

[0030] Fig.10 It is a schematic structural diagram of the auxiliary component of the present invention.

[0031] In the figure: 1. dial, 2. threaded connector, 3. temperature sensing tube, 4. cleaning device, 41. threaded cylinder, 42. protective cover, 43. round hole, 44. vertical hole, 45. scraping mechanism, 451. scraping member, 4511. outer scraper, 4512. connecting plate, 4513. inner scraper, 4514. cleaning hole, 4515. elastic vertical rope, 4516. pull rope, 4517. fixing plate, 4518. sliding rod, 4519. limiting bending rod, 452. auxiliary part, 4521. top plate, 4522. limiting cylinder, 4523. shift rod, 4524. spring, 4525. bottom plate, 4526. horizontal plate, 4527. arc baffle. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] See also Figure 1-9 The present invention provides a technical solution: a shock-resistant bimetallic thermometer, comprising a dial 1, a threaded connector 2 is fixedly connected to the bottom of the dial 1, a temperature sensing tube 3 is fixedly connected to the bottom of the threaded connector 2, a cleaning device 4 is provided on the outside of the temperature sensing tube 3, and the cleaning device 4 is threadedly connected to the threaded connector 2;

[0035] The cleaning device 4 includes a scraping mechanism 45, the top of which is fixedly connected to the bottom of the threaded tube 41, a protective sleeve 42 is provided outside the temperature sensing tube 3, the top of the protective sleeve 42 is fixedly connected to the threaded tube 41, the threaded tube 41 is threadedly connected to the threaded connector 2, a circular hole 43 is provided on the side of the upper part of the protective sleeve 42, and a vertical hole 44 is provided on the side of the lower part of the protective sleeve 42;

[0036] The scraping mechanism 45 comprises:

[0037] The scraper 451 is a structure adapted to the temperature sensing tube 3. The scraper 451 can move up and down in the vertical direction under the action of tension. The scraper 451 is used to clean the impurities on the outer wall of the temperature sensing tube 3. The scraper 451 includes an outer scraper plate 4511, and a connecting plate 4512 is fixedly connected to the inner side of the outer scraper plate 4511. The connecting plate 4512 is fixedly connected to an inner scraper plate 4513 on one side close to the axis of the outer scraper plate 4511. The inner scraper plate 4513 scrapes and opens a cleaning hole 4514. The top of the connecting plate 4512 is fixedly connected to an elastic vertical rope 4515. The top of the elastic vertical rope 4515 is fixedly connected to a pulling rod. Rope 4516, the inner wall of the protective cover 42 is fixedly connected with a fixing plate 4517, the top of the fixing plate 4517 is fixedly connected with a sliding rod 4518, both ends of the sliding rod 4518 are fixedly connected with a limiting bent rod 4519, the sliding rod 4518 is arranged in the circular hole 43, the sliding rod 4518 is wrapped around the elastic vertical rope 4515, both ends of the limiting bent rod 4519 are respectively fixedly connected with both ends of the sliding rod 4518, the limiting bent rod 4519 and the sliding rod 4518 form a limiting hole, the upper part of the elastic vertical rope 4515 passes through the limiting hole, there are six connecting plates 4512, and the six connecting plates 4512 are equidistantly distributed in the circumferential direction of the protective cover 42.

[0038] When in use, the temperature sensing tube 3 is inserted into the protective sleeve 42, and the threaded connector 2 is screwed into the threaded tube 41, and the middle and lower part of the protective sleeve 42 is placed in the tube body. There is a solution flowing in the tube body. The protective sleeve 42 can block the impact of the liquid, reduce the impact on the temperature sensing tube 3, and extend the service life of the temperature sensing tube 3. After the temperature sensing tube 3 has been used for a long time, the impurities adhering to the outside of the temperature sensing tube 3 increase. Pull the pull rope 4516, and the pull rope 4516 drives the elastic vertical rope 4515. The elastic vertical rope 4515 slides around the sliding rod 4518. The elastic vertical rope 4515 is set between the sliding rod 4518 and the limiting bent rod 4519. The limiting bent rod 4519 can prevent the elastic vertical rope 4515 from slipping out during the pulling process. The two elastic vertical ropes 4515 are equidistantly distributed in the circumferential direction of the protective sleeve 42. The two elastic vertical ropes 4515 are simultaneously The connecting plate 4512, the outer scraper 4511 and the inner scraper 4513 are subjected to force and pulled upward. The two elastic vertical ropes 4515 can ensure that the outer scraper 4511 and the inner scraper 4513 are subjected to uniform force. The outer scraper 4511 and the inner scraper 4513 respectively scrape off the impurities adhering to the inner wall of the protective cover 42 and the side of the temperature sensing tube 3. Most of the impurities are mixed into the solution, and some impurities are accumulated in the recesses of the outer scraper 4511 and the inner scraper 4513. A cleaning hole 4514 is provided on the inner scraper 4513. When the inner scraper 4513 moves upward, the solution moves upward along the cleaning hole 4514 to reduce the resistance of the liquid and facilitate the movement of the inner scraper 4513 in the vertical direction. The solution passing through the cleaning hole 4514 flushes the impurities remaining on the inner scraper 4513 and brings them into the solution. The vertical hole 44 facilitates the rapid outflow of impurities.

[0039] See also Figure 8-10 The present invention provides a technical solution: a shock-resistant bimetallic thermometer, comprising an auxiliary part 452, the auxiliary part 452 is a limiting structure adapted to the scraper 451, the auxiliary part 452 is used to limit the moving direction and distance of the scraper 451, the auxiliary part 452 comprises a top plate 4521, the top of the top plate 4521 is fixedly connected to the bottom of the threaded cylinder 41, the bottom of the top plate 4521 is fixedly connected to the limiting cylinder 4522, the limiting cylinder 4522 is slidably connected to a shift rod 4523, the bottom of the shift rod 4523 is fixedly connected to the top of the connecting plate 4512, the top of the connecting plate 4512 is fixedly connected to the limiting cylinder 4522, A spring 4524 is connected, and a bottom plate 4525 is fixedly connected to the bottom of the spring 4524. The side of the bottom plate 4525 away from the axis of the threaded tube 41 is fixedly connected to the inner wall of the protective sleeve 42. A transverse plate 4526 is fixedly connected to the side of the protective sleeve 42. The side of the transverse plate 4526 away from the protective sleeve 42 is fixedly connected to an arc-shaped baffle 4527. There are two shift rods 4523, and the two shift rods 4523 are arranged on both sides of the axis of the limiting tube 4522. The arc-shaped baffle 4527 can block the pull rope 4516, and the elastic vertical rope 4515 cannot move downward all the time, and the shift rod 4523 cannot be pulled out of the limiting tube 4522.

[0040] When in use, during the upward movement of the connecting plate 4512, the outer scraper 4511, and the inner scraper 4513, the spring 4524 is stretched. Under the joint resistance of the solution pressure and the elastic force of the spring 4524, the outer scraper 4511 and the inner scraper 4513 move upward slowly, which can prevent excessive pulling force from causing excessive squeezing of the outer scraper 4511, the inner scraper 4513 and the inner wall of the protective sleeve 42 and the side of the temperature sensing tube 3. The shift rod 4523 vertically penetrates into the limiting cylinder 4522, thereby ensuring that the outer scraper 4511 and the inner scraper 4513 move in the vertical direction.

[0041] See also Figure 1-10 The present invention provides a technical solution: a shock-resistant bimetallic thermometer, comprising.

[0042] When in use, the pull rope 4516 is loosened and the spring 4524 recovers. The spring 4524 brings the outer scraper 4511, the inner scraper 4513, the elastic vertical rope 4515 and the pull rope 4516 back to their original positions. During the entire downward movement, the outer scraper 4511 and the inner scraper 4513 scrape off the impurities again. Finally, the pull rope 4516 contacts and squeezes the arc baffle 4527. The pull rope 4516 and the shift rod 4523 can no longer move downward. At this time, the shift rod 4523 is not completely pulled out of the limiting cylinder 4522. The shift rod 4523 is slidably connected to the limiting cylinder 4522 and plays a limiting role, ensuring that the outer scraper 4511 and the inner scraper 4513 move in the vertical direction. The arc baffle 4527 can ensure that the shift rod 4523 will not separate from the limiting cylinder 4522 during the movement.

[0043] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shock-resistant bimetallic thermometer, comprising a dial (1), a threaded connector (2) fixedly connected to the bottom of the dial (1), a temperature sensing tube (3) fixedly connected to the bottom of the threaded connector (2), characterized in that: A cleaning device (4) is provided on the outside of the temperature sensing tube (3), and the cleaning device (4) is threadedly connected to the threaded connector (2); The cleaning device (4) comprises a scraping mechanism (45); The scraping mechanism (45) comprises: a scraper (451), the scraper (451) being a structure adapted to the temperature sensing tube (3), the scraper (451) being capable of moving up and down in a vertical direction under the action of a pulling force, the scraper (451) being used to clean impurities on the outer wall of the temperature sensing tube (3); An auxiliary member (452), the auxiliary member (452) being a limiting structure matched with the scraping member (451), the auxiliary member (452) being used to limit the direction and distance of movement of the scraping member (451); The top of the scraping mechanism (45) is fixedly connected to the bottom of the threaded barrel (41); a protective sleeve (42) is provided on the outside of the temperature sensing tube (3); the top of the protective sleeve (42) is fixedly connected to the threaded barrel (41); the threaded barrel (41) is threadedly connected to the threaded connector (2); a circular hole (43) is provided on the side surface of the upper portion of the protective sleeve (42); and a vertical hole (44) is provided on the side surface of the lower portion of the protective sleeve (42); The scraping member (451) comprises an outer scraper (4511), a connecting plate (4512) is fixedly connected to the inner side of the outer scraper (4511), an inner scraper (4513) is fixedly connected to the side of the connecting plate (4512) close to the axis of the outer scraper (4511), the inner scraper (4513) is provided with a cleaning hole (4514) for scraping, and an elastic vertical rope (4515) is fixedly connected to the top of the connecting plate (4512). The top of the vertical rope (4515) is fixedly connected to a pull rope (4516), the inner wall of the protective cover (42) is fixedly connected to a fixing plate (4517), the top of the fixing plate (4517) is fixedly connected to a sliding rod (4518), both ends of the sliding rod (4518) are fixedly connected to limited bending rods (4519), the sliding rod (4518) is arranged in the circular hole (43), and the sliding rod (4518) is wound around the elastic vertical rope (4515); The auxiliary component (452) comprises a top plate (4521), the top of the top plate (4521) is fixedly connected to the bottom of the threaded cylinder (41), the bottom of the top plate (4521) is fixedly connected to a limiting cylinder (4522), the limiting cylinder (4522) is slidably connected to a shift rod (4523), the bottom of the shift rod (4523) is fixedly connected to the top of a connecting plate (4512), the top of the connecting plate (4512) is fixedly connected to a spring (4524), the bottom of the spring (4524) is fixedly connected to a bottom plate (4525), the side of the bottom plate (4525 away from the axis of the threaded cylinder (41) is fixedly connected to the inner wall of the protective sleeve (42), the side of the protective sleeve (42) is fixedly connected to a transverse plate (4526), ​​and the side of the transverse plate (4526) away from the protective sleeve (42) is fixedly connected to an arc-shaped baffle (4527); The two ends of the limit bending rod (4519) are respectively fixedly connected to the two ends of the sliding rod (4518), and the limit bending rod (4519) and the sliding rod (4518) form a limit hole, and the upper part of the elastic vertical rope (4515) passes through the limit hole; There are two shifting rods (4523) in total. The two shifting rods (4523) are arranged on both sides of the axis of the limiting cylinder (4522). The arc-shaped baffle (4527) can block the pull rope (4516), so that the elastic vertical rope (4515) cannot move downward all the way, and the shifting rod (4523) cannot be pulled out of the limiting cylinder (4522).

2. A shock-resistant bimetallic thermometer according to claim 1, characterized in that: There are six connecting plates (4512) in total, and the six connecting plates (4512) are distributed at equal intervals in the circumferential direction of the protective sleeve (42).

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