Portable multifunctional high-precision temperature sensor

Abstract

The utility model discloses a portable multifunctional high-precision temperature sensor, particularly relates to the technical field of temperature sensors, and comprises a temperature sensor main body, the lower end face of the temperature sensor main body is connected with a lead through an adapter, and one end of the lead far away from the temperature sensor main body is connected with a probe. The temperature sensor body, the wire and the probe are covered with a protection box, and two box doors are hinged to the front surface wall of the protection box. According to the utility model, through the arrangement of the cleaning structure, the protection assembly of the temperature sensor has the function of cleaning the probe, the probe can be cleaned after the probe is taken out from the temperature measurement liquid, and liquid and impurities left on the surface of the probe after temperature measurement can be effectively removed; residual liquid is prevented from entering the clamping base in the process that the probe retracts into the protection assembly, and the situation that liquid and impurities are accumulated for a long time to erode internal structural parts of the protection assembly and affect the protection effect is prevented.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, specifically to a portable, multifunctional, high-precision temperature sensor. Background Technology

[0002] A temperature sensor is a sensor that can sense temperature and convert it into a usable output signal. Temperature sensors are the core component of temperature measuring instruments. There are many types of temperature sensors. According to the measurement method, they can be divided into two main categories: contact type and non-contact type. According to the characteristics of sensor materials and electronic components, they can be divided into two main categories: resistance temperature detectors (RTDs) and thermocouples.

[0003] Application number 202323110316.X discloses a high-precision temperature sensor, "including a temperature sensor body and a protective shell. An adapter is fixedly connected to the bottom of the temperature sensor body, and a wire is installed inside the adapter. The adapter helps protect the connection between the wire 3 and the temperature sensor body. A drive mechanism is provided inside the protective shell." While the above design, including the protective shell and internal drive mechanism, achieves a protective effect on the probe, preventing dust from adhering to it when not in use and protecting the probe's accuracy to some extent, when the probe is removed from the temperature-measuring liquid, its surface inevitably retains liquid. This liquid can accumulate during the probe retraction into the protective shell. During use, liquid can easily enter the protective housing through the probe. With repeated use, liquid residue will gradually accumulate, and impurities it may carry will also adhere to the inner wall of the protective housing and other critical components. As residual liquid and impurities accumulate over a long period, they will corrode the internal structural components of the protective housing, affecting the protective effect. On the other hand, the long-term interference of liquid and impurities on the probe may cause a layer of dirt to form on the surface of its sensitive element, hindering the normal transfer of heat. This will make the probe less responsive to temperature changes, continuously reduce the temperature measurement accuracy, and thus seriously affect the performance of the entire device, greatly reducing the reliability and accuracy of the temperature sensor in long-term use. Utility Model Content

[0004] The purpose of this invention is to provide a portable, multifunctional, high-precision temperature sensor to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a portable multifunctional high-precision temperature sensor, comprising a temperature sensor body, a wire connected to the lower end face of the temperature sensor body via an adapter, a probe connected to the end of the wire away from the temperature sensor body, a protective box covering the temperature sensor body, the wire, and the probe, two hinged doors on the front wall of the protective box, and a placement seat for placing the temperature sensor body fixedly connected inside the protective box, a cleaning structure provided on one side of the lower end of the placement seat, and a holder for placing the probe fixedly connected on one side of the cleaning structure and on the inner wall of the protective box.

[0006] Specifically, in use, hold the handle on the protective box and lift the device to the desired location. Then, loosen the fastening bolts on the box door, pry the box door outwards to open the protective box, then remove the probe from the holder, and then place the probe into the temperature measuring liquid to measure the temperature of the liquid. During the temperature measurement process, the temperature sensor body is connected to the probe through the wire, acquiring the temperature data sensed by the probe in real time, converting it into an electrical signal for processing and display. After the test is completed, the probe can be removed.

[0007] Preferably, a buffer assembly is provided between the placement base and the temperature sensor body. The buffer assembly consists of a telescopic rod, a buffer spring, and a stop plate. The buffer spring is sleeved on the outside of the telescopic rod, and the free end of the buffer spring is connected to the stop plate. The stop plate is clamped on the outside of the temperature sensor body.

[0008] Preferably, the cleaning structure includes a fixed base fixedly connected to the bottom of the protective box. The fixed base is provided with a rinsing component and a wiping component. The rinsing component includes a through groove on one side of the upper end face of the fixed base. Multiple water spray pipes are fixedly connected from top to bottom inside the through groove. A connecting pipe connects two water spray pipes. A nozzle is connected to the inner wall of the water spray pipe. A delivery pipe is connected to the upper end face of the upper water spray pipe. The water inlet end of the delivery pipe passes through and extends to the outside of the fixed base and is connected to a liquid tank. A perforation (not shown in the figure) is opened on the lower end face of the protective box at the lower end of the through groove.

[0009] Preferably, the liquid tank is fixedly connected to the inner wall of the protective box, the front wall of the fixing seat is connected to a connecting cover by fixing screws, and the delivery pipe is provided with an elastic sealing component.

[0010] Preferably, the elastic sealing assembly includes a vertical tube disposed in a cavity in the inner wall of the fixed base, the vertical tube and the delivery pipe being connected in a cross shape, and a blocking block being disposed inside the vertical tube. A connecting rod is fixedly connected to the upper end face of the blocking block, and a top block is connected to the upper end face of the connecting rod through and extending to the upper end of the vertical tube. A first spring is connected between the top block and the vertical tube, and the first spring is sleeved on the outside of the connecting rod.

[0011] Preferably, a drive motor is installed diagonally above the top block and inside the cavity of the fixed base, and the output end of the drive motor is connected to a rotating block, which is located at the upper end of the top block.

[0012] Through the above technical solution:

[0013] After the probe is removed from the temperature-measuring liquid, it is first placed in the through-slot through the perforation (Note: Before temperature measurement, the probe is passed sequentially through the through-slot in the fixed base and the perforation in the lower end face of the protective box). Then, the drive motor is turned on to rotate the rotating block. When the rotating block changes from horizontal to vertical, the top block can be pressed down, causing it to descend into the lower end of the vertical pipe through the plug connected by the connecting rod. The delivery pipe is then opened, and the cleaning liquid in the liquid tank enters the spray pipe through the delivery pipe, finally spraying water onto the probe through the nozzle. This operation can effectively remove residual liquid and impurities from the probe surface. This prevents the liquid from entering the protective components, thus preventing corrosion of internal structural parts and affecting the protective effect. It also prevents the formation of a dirt layer on the sensitive element of the probe, maintains temperature measurement accuracy, improves the long-term reliability and accuracy of the temperature sensor device, and extends its service life. At the same time, the drive motor drives the rotating block to rotate, causing the block to rise and fall regularly, so that the nozzle sprays cleaning fluid intermittently. This not only avoids waste of cleaning fluid and achieves efficient use of resources, but also ensures that the probe is thoroughly rinsed during each cleaning process through intermittent cleaning, effectively removing residual liquid and impurities. (Note: The cleaning liquid is discharged through the perforation on the lower end face of the protective box.)

[0014] Preferably, the wiping assembly includes a placement groove on the other side of the upper end face of the fixed base, a sleeve is embedded inside the placement groove, and a wiping block is fixedly connected to the inner surface wall of the sleeve.

[0015] Specifically, after cleaning, the probe is removed from the through slot, and then the rinsed probe is placed inside the wiping block. The end of the probe connected to the wire is then rotated inside the wiping block to wipe away water droplets on the outside of the probe, ensuring the cleanliness of the probe. This not only prevents water droplets from dripping into the card holder and the protective box, but also avoids localized dampness caused by water droplets affecting the performance of the internal sensitive elements, thus ensuring temperature measurement accuracy.

[0016] Preferably, the lower end of the sleeve is provided with an ejector assembly, the ejector assembly including a groove formed in the inner wall of the fixed seat and located at the lower end of the placement groove, a second spring is connected inside the groove, and the free end of the second spring is connected to a top plate.

[0017] Through the above technical solution:

[0018] After the wiping block has been used for a period of time, the screw on the sleeve is unscrewed. Then, using the elastic force of the second spring, the top plate moves up, which can push the end of the sleeve out of the groove. The wiping block can be quickly removed, avoiding saturation that affects the wiping effect, ensuring that the probe is dry, maintaining temperature measurement accuracy, solving the removal problem caused by small gaps, improving replacement efficiency, reducing maintenance time, and avoiding damage to the connection position by forcibly removing it.

[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0020] 1. By setting up a cleaning structure, the protective component of the temperature sensor has the function of cleaning the probe. After the probe is removed from the temperature measuring liquid, it can be cleaned, which can effectively remove the liquid and impurities remaining on the probe surface after temperature measurement. This prevents residual liquid from entering the socket during the probe retraction process of the protective component, and prevents the long-term accumulation of liquid and impurities from corroding the internal structural components of the protective component and affecting the protective effect. At the same time, it also prevents the formation of a dirt layer on the surface of the probe's sensitive element, which hinders heat transfer, ensures the probe's sensitive response to temperature changes, maintains temperature measurement accuracy, and thus improves the reliability and accuracy of the entire temperature sensor device in long-term use, and extends its service life.

[0021] 2. By setting up an ejector component, the cleaning structure has an ejector function, which allows the wiping block to be quickly removed after a period of use. This avoids the situation where the wiping block becomes saturated, resulting in unsatisfactory wiping effects. It ensures the drying effect of the probe and maintains the accuracy of temperature measurement. At the same time, it effectively solves the problem of difficulty in removing the wiping block due to the small gap between the groove and the sleeve, improves the replacement efficiency, reduces maintenance time, and avoids the disadvantage of forcibly removing it, which may cause great damage to the connection position. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram showing the opening of the protective box of this utility model;

[0025] Figure 3 A schematic diagram showing the cleaning structure of this utility model placed inside the protective box;

[0026] Figure 4 This is one of the schematic diagrams of the cleaning structure of this utility model;

[0027] Figure 5 This is an enlarged schematic diagram of the cleaning component of this utility model;

[0028] Figure 6 This is a schematic diagram showing the connection between the delivery pipe and the elastic sealing component of this utility model;

[0029] Figure 7 This is the second schematic diagram of the cleaning structure of this utility model;

[0030] Figure 8 This is an enlarged schematic diagram of the connection between the ejector assembly and the sleeve of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Temperature sensor body; 2. Wire; 3. Probe; 4. Protective box; 5. Box door; 6. Placement seat; 7. Cleaning structure; 71. Fixing seat; 72. Connecting cover; 73. Through groove; 74. Water spray pipe; 75. Spray head; 76. Connecting pipe; 77. Delivery pipe; 78. Liquid tank; 711. Placement groove; 712. Sleeve; 713. Wiping block; 8. Elastic sealing assembly; 81. Vertical pipe; 82. Block; 83. Connecting rod; 84. Top block; 85. First spring; 86. Drive motor; 87. Rotating block; 9. Ejection assembly; 91. Embedded groove; 92. Second spring; 93. Top plate; 10. Card seat; 11. Buffer assembly. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figures 1-3 The portable, multifunctional, high-precision temperature sensor shown includes:

[0035] A temperature sensor body 1 is provided. A wire 2 is connected to the lower end of the temperature sensor body 1 via an adapter. A probe 3 is connected to the end of the wire 2 away from the temperature sensor body 1. A protective box 4 is provided to cover the temperature sensor body 1, the wire 2, and the probe 3. Two boxes 5 are hinged to the front surface wall of the protective box 4. A placement seat 6 for placing the temperature sensor body 1 is fixedly connected inside the protective box 4. A cleaning structure 7 is provided on one side of the lower end of the placement seat 6. A card holder 10 for placing the probe 3 is fixedly connected to one side of the cleaning structure 7 and located on the inner surface wall of the protective box 4.

[0036] Specifically, when using the device, hold the handle on the protective box 4 and lift it to the desired location. Then, loosen the fastening bolts on the box door 5, pry the box door 5 outwards to open the protective box 4. Next, remove the probe 3 from the holder 10 and place the probe 3 into the temperature measuring liquid to measure the temperature of the liquid. During the temperature measurement process, the temperature sensor body 1 is connected to the probe 3 through the wire 2 to acquire the temperature data sensed by the probe 3 in real time, convert it into an electrical signal for processing and display. After the test is completed, the probe 3 can be removed.

[0037] Further, see Figure 3 As shown, a buffer assembly 11 is provided between the placement seat 6 and the temperature sensor body 1. The buffer assembly 11 consists of a telescopic rod, a buffer spring and a stop plate. The buffer spring is sleeved on the outside of the telescopic rod, and the free end of the buffer spring is connected to the stop plate. The stop plate is clamped on the outside of the temperature sensor body 1.

[0038] This utility model provides, for example Figures 2-5 The portable, multifunctional, high-precision temperature sensor shown includes a cleaning structure 7 comprising a fixed base 71 fixedly connected to the bottom of the interior of a protective housing 4. The fixed base 71 is equipped with a rinsing component and a wiping component. The rinsing component includes a through groove 73 on one side of the upper surface of the fixed base 71. Multiple water spray pipes 74 are fixedly connected from top to bottom inside the through groove 73. A connecting pipe 76 connects two water spray pipes 74. A nozzle 75 is connected to the inner wall of the water spray pipe 74. A delivery pipe 77 is connected to the upper surface of the upper water spray pipe 74. The water inlet end of the delivery pipe 77 passes through and extends to the outside of the fixed base 71 and is connected to a liquid tank 78. A perforation (not shown in the figure) is provided on the lower end of the protective housing 4 at the lower end of the through groove 73.

[0039] The liquid tank 78 is fixedly connected to the inner wall of the protective box 4. The front wall of the fixing seat 71 is connected to the connecting cover 72 by fixing screws. The delivery pipe 77 is provided with an elastic sealing component 8.

[0040] Further, see Figure 6As shown, the elastic sealing assembly 8 includes a vertical tube 81 disposed in a cavity in the inner wall of the fixed base 71. The vertical tube 81 is connected to the delivery tube 77 in a cross-shaped manner. A blocking block 82 is provided inside the vertical tube 81. A connecting rod 83 is fixedly connected to the upper end face of the blocking block 82. The upper end face of the connecting rod 83 passes through and extends to the upper end of the vertical tube 81 and is connected to a top block 84. A first spring 85 is connected between the top block 84 and the vertical tube 81. The first spring 85 is sleeved on the outside of the connecting rod 83.

[0041] A drive motor 86 is installed diagonally above the top block 84 and inside the cavity of the fixed base 71. The output end of the drive motor 86 is connected to a rotating block 87, which is located at the upper end of the top block 84.

[0042] Through the above technical solution:

[0043] After the probe 3 is removed from the temperature-measuring liquid, it is first placed in the through slot 73 through the perforation (Note: Before temperature measurement, the probe 3 is passed through the through slot 73 in the fixed base 71 and the perforation in the lower end face of the protective box 4 in sequence). Then, the drive motor 86 is turned on to drive the rotating block 87 to rotate. When the rotating block 87 changes from horizontal to vertical, the top block 84 can be pressed down, causing it to descend into the lower end of the vertical pipe 81 through the plug 82 connected by the connecting rod 83. The delivery pipe 77 is then opened, and the cleaning liquid in the liquid tank 78 enters the water spray pipe 74 through the delivery pipe 77. Finally, water is sprayed onto the probe 3 through the nozzle 75. This operation can effectively remove residual liquid and impurities on the surface of the probe 3, avoiding... To prevent it from entering the protective components and corroding the internal structural parts, thus affecting the protective effect, and to avoid the formation of a dirt layer on the sensitive element of probe 3, maintaining temperature measurement accuracy, improving the long-term reliability and accuracy of the temperature sensor device, and extending its service life, the drive motor 86 drives the rotating block 87 to rotate, causing the block 82 to rise and fall regularly, so that the nozzle 75 sprays cleaning fluid intermittently. This not only avoids the waste of cleaning fluid and achieves efficient use of resources, but also ensures that probe 3 is thoroughly rinsed in each cleaning process through intermittent cleaning, effectively removing residual liquid and impurities. (Note: The cleaning liquid is discharged through the perforation on the lower end face of the protective box 4.)

[0044] Further, see Figure 4 and Figure 7 As shown, the wiping assembly includes a placement groove 711 on the other side of the upper end face of the fixed base 71. A sleeve 712 is embedded inside the placement groove 711, and a wiping block 713 is fixedly connected to the inner surface wall of the sleeve 712.

[0045] Specifically, after cleaning, the probe 3 is removed from the through slot 73, and then the rinsed probe 3 is placed inside the wiping block 713. Then, the end of the probe 3 connected to the wire 2 is rotated, and the probe 3 is rotated inside the wiping block 713 to wipe away the water droplets on the outside of the probe 3, ensuring the cleanliness of the probe 3. This not only prevents the water droplets from dripping into the card holder 10 and the protective box 4, but also avoids the situation where the probe 3 becomes locally damp due to water droplet residue, which could affect the performance of its internal sensitive elements, thus ensuring the accuracy of temperature measurement.

[0046] This utility model provides, for example Figure 7 and Figure 8 The portable multifunctional high-precision temperature sensor shown has an ejector assembly 9 at the lower end of the sleeve 712. The ejector assembly 9 includes a groove 91 formed in the inner wall of the fixed base 71 and located at the lower end of the placement groove 711. A second spring 92 is connected inside the groove 91, and a top plate 93 is connected to the free end of the second spring 92.

[0047] Through the above technical solution:

[0048] After the wiping block 713 has been used for a period of time, unscrew the screw on the sleeve 712. Then, using the elastic force of the second spring 92, the top plate 93 moves upward, which can push the end of the sleeve 712 out of the groove 91, so that the wiping block 713 can be quickly removed. This avoids the saturation affecting the wiping effect, ensures that the probe 3 is dry, maintains the accuracy of temperature measurement, and also solves the problem of removal caused by the small gap, improves the replacement efficiency, reduces maintenance time, and avoids damage to the connection position by forcibly removing it.

[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portable, multifunctional, high-precision temperature sensor, characterized in that, include: A temperature sensor body (1) is provided. A wire (2) is connected to the lower end of the temperature sensor body (1) via an adapter. A probe (3) is connected to the end of the wire (2) away from the temperature sensor body (1). A protective box (4) is provided on the outside of the temperature sensor body (1), the wire (2) and the probe (3). Two doors (5) are hinged to the front surface of the protective box (4). A placement seat (6) for placing the temperature sensor body (1) is fixedly connected inside the protective box (4). A cleaning structure (7) is provided on one side of the lower end of the placement seat (6). A card holder (10) for placing the probe (3) is fixedly connected on one side of the cleaning structure (7) and on the inner surface of the protective box (4). The cleaning structure (7) includes a fixed base (71) fixedly connected to the bottom of the protective box (4). The fixed base (71) is provided with a rinsing component and a wiping component. The rinsing component includes a through groove (73) opened on one side of the upper end face of the fixed base (71). Multiple water spray pipes (74) are fixedly connected from top to bottom inside the through groove (73). A connecting pipe (76) is connected between two water spray pipes (74). A nozzle (75) is connected to the inner wall of the water spray pipe (74). A delivery pipe (77) is connected to the upper end face of the upper water spray pipe (74). The water inlet end of the delivery pipe (77) passes through and extends to the outside of the fixed base (71) and is connected to a liquid tank (78).

2. The portable, multifunctional, high-precision temperature sensor according to claim 1, characterized in that: The liquid tank (78) is fixedly connected to the inner wall of the protective box (4), and the front wall of the fixing seat (71) is connected to the connecting cover (72) by fixing screws. The delivery pipe (77) is provided with an elastic sealing component (8).

3. The portable, multifunctional, high-precision temperature sensor according to claim 1, characterized in that: The wiping assembly includes a placement groove (711) on the other side of the upper end face of the fixed base (71), and a sleeve (712) is embedded inside the placement groove (711). A wiping block (713) is fixedly connected to the inner wall of the sleeve (712).

4. A portable, multifunctional, high-precision temperature sensor according to claim 2, characterized in that: The elastic sealing assembly (8) includes a vertical tube (81) with a cavity in the inner wall of the fixed base (71). The vertical tube (81) is connected to the delivery pipe (77) in a cross-shaped manner. A block (82) is provided inside the vertical tube (81). A connecting rod (83) is fixedly connected to the upper end face of the block (82). The upper end face of the connecting rod (83) extends through and to the upper end of the vertical tube (81) and is connected to a top block (84). A first spring (85) is connected between the top block (84) and the vertical tube (81). The first spring (85) is sleeved on the outside of the connecting rod (83).

5. A portable, multifunctional, high-precision temperature sensor according to claim 4, characterized in that: A drive motor (86) is installed diagonally above the top block (84) and inside the cavity of the fixed base (71). The output end of the drive motor (86) is connected to a rotating block (87), which is located at the upper end of the top block (84).

6. A portable, multifunctional, high-precision temperature sensor according to claim 3, characterized in that: The lower end of the sleeve (712) is provided with an ejector assembly (9). The ejector assembly (9) includes a groove (91) opened on the inner wall of the fixed seat (71) and located at the lower end of the placement groove (711). A second spring (92) is connected inside the groove (91), and the free end of the second spring (92) is connected to a top plate (93).

7. A portable, multifunctional, high-precision temperature sensor according to claim 1, characterized in that: A buffer assembly (11) is provided between the placement seat (6) and the temperature sensor body (1). The buffer assembly (11) consists of a telescopic rod, a buffer spring and a stop plate. The buffer spring is sleeved on the outside of the telescopic rod, and the free end of the buffer spring is connected to the stop plate. The stop plate is clamped on the outside of the temperature sensor body (1).

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