Sensing mechanism for temperature calibration of drying box

Abstract

The utility model provides a sensing mechanism for temperature calibration of a drying box, which belongs to the technical field of temperature calibration or measurement of the drying box and comprises a plurality of connecting rods, diagonal tip cones, a pair of pull rope rings, a binding plate and a display. The pull rope rings are arranged on the diagonal tip cones, the pair of pull rope rings are arranged close to the vertex angle of the inner cavity of the drying box, leads are wound on the pull rope rings and are connected with the pair of pull rope rings, motors are arranged on the pull rope rings, the motors drive the pull rope rings to rotate, and the binding plates can be locked on the leads. A temperature sensor is detachably arranged on the binding plate, and the displayer is electrically connected with the temperature sensor and used for displaying the temperature detected by the temperature sensor in real time. The sensing mechanism for temperature calibration is easy and convenient to use or disassemble, and temperature calibration of the drying box is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying box temperature calibration or measurement, in particular to a sensing mechanism for temperature calibration of a drying box. Background Art

[0002] The primary function of a drying oven is to dry various substances. They are widely used in the chemical, food, electronics, communications, plastics, rubber products, molds, and other fields. A wide variety of drying ovens are available on the market, primarily categorized into two main types: electric blower drying ovens and vacuum drying ovens. Before leaving the factory, drying ovens are temperature-calibrated or measured according to JJF1101-2019, "Specifications for Temperature and Humidity Calibration of Environmental Test Equipment," to ensure they meet the relevant specifications.

[0003] For example, the utility model patent with patent number CN201720643170.0 discloses a vacuum drying oven, including a drying oven, a base and a fixed plate. A control box is provided on the right side of the drying oven, the drying oven is provided with an insulation layer, a heating device is provided inside the insulation layer, a humidity detection device is provided on the inner wall of the drying oven, an exhaust pipe is provided on the left side of the drying oven, and the left end of the exhaust pipe is connected to a vacuum pump. The drying oven adopts vacuum heating to dry, and the air inside the drying oven is extracted by the vacuum pump, and at the same time, a part of the moisture can be removed to play a drying role. Under the control of the control box, the heating device heats the drying oven, and the moisture in the material is heated into gas and extracted by the vacuum pump, which plays a good drying role. The humidity detection device and the temperature detection device can monitor the internal humidity and temperature in real time, and transmit the humidity and temperature information to the processor. The processor displays this information on the display screen of the control box, which is convenient for the staff to control the heating of the drying oven.

[0004] However, over extended periods of use, the drying oven can experience temperature measurement errors. The fixed position of the temperature sensor makes it difficult to measure the temperature of various areas within the drying oven, resulting in inaccurate temperature measurement and impacting the drying oven's performance. Returning the drying oven for factory calibration is expensive and can delay production. However, existing devices lack a device or mechanism for temperature calibration. Therefore, a temperature calibration device or mechanism is urgently needed to calibrate the drying oven's temperature. Utility Model Content

[0005] Based on this, the utility model provides a sensing mechanism for temperature calibration of a drying oven to meet the requirements of temperature calibration of the drying oven.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] A sensing mechanism for calibrating the temperature of a drying box is installed in the inner cavity of the drying box and is used to calibrate the temperature of the drying box. The sensing mechanism comprises several connecting rods, a diagonal top cone, a pair of drawstring rings, a binding plate and a display. Several connecting rods are connected in sequence. The diagonal top cones are detachably installed at both ends of the connecting rods, and the tops of the diagonal top cones are to the top corners of the inner cavity of the drying box. The drawstring rings are arranged on the diagonal top cones, and a pair of the drawstring rings are arranged near the top corners of the inner cavity of the drying box. A lead is wound around the drawstring ring, and the lead connects a pair of the drawstring rings. A motor is provided on the drawstring ring, and the motor drives the drawstring ring to rotate. The binding plate can be locked on the lead. A temperature sensor is detachably provided on the binding plate. The display is electrically connected to the temperature sensor and is used to display the temperature detected by the temperature sensor in real time.

[0008] Preferably, both ends of the connecting rod are provided with internal threads and external threads, and two adjacent connecting rods are detachably threadedly connected via the internal threads and the external threads.

[0009] Preferably, the diagonal top cone includes a top cone body and a universal joint. The top cone body is placed at the top corner of the inner cavity of the drying box. The universal joint is connected to the top cone body and is used to adjust the direction of the top cone body.

[0010] Preferably, the diagonal top cone further comprises a fine-tuning sleeve rod, the fine-tuning sleeve rod is telescopically adjustable, one end of the fine-tuning sleeve rod is connected to the universal joint, and the other end is connected to the connecting rod, and the pull rope ring is detachably provided on the fine-tuning sleeve rod.

[0011] Preferably, the drawstring ring is further provided with a clamp and an extension rod, the clamp is detachably engaged with the fine-tuning sleeve rod, one end of the extension rod is connected to the clamp, and the other end is connected to the drawstring ring.

[0012] Preferably, the pull rope ring includes a rotating ring and limit plates located on both sides of the rotating ring, the rotating ring can rotate relative to the limit plates, the lead is wound on the rotating ring, and the rotating ring is connected to the motor, and the limit plates are fixedly connected to the extension rod.

[0013] Preferably, the binding plate includes a buckle and a clamping plate, the buckle is clamped and locked on the lead, the clamping plate is installed on the buckle, and the clamping plate is used to clamp the temperature sensor.

[0014] Preferably, the clip includes a first buckle plate, a second buckle plate and a threaded locking rod, the first buckle plate is provided with a first half groove, the second buckle plate is provided with a second half groove, the first buckle plate and the second buckle plate are close to each other and buckled together, the first half groove and the second half groove are buckled together to clamp the lead, the first buckle plate is provided with a first screw hole, the second buckle plate is provided with a second screw hole, and the threaded locking rod passes through the first screw hole and is tightened to the second screw hole.

[0015] Preferably, the binding plate is further provided with a humidity sensor, and the card plate is provided with a plurality of sensor slots, and the sensor slots are used for clamping the temperature sensor and the humidity sensor.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] 1. By installing the connecting rod and the diagonal top cone to the upper top corner and the lower bottom corner of the inner cavity of the drying box, the pull rope loop is wound around the lead to drive the binding plate to move. The temperature sensor on the binding plate can detect the temperature of the drying box from the lower bottom to the upper top and from the front end to the rear end of the inner cavity. By comparing the temperature sensor of the sensing mechanism and the temperature sensor of the drying box itself, if there is no temperature error, it indicates that the temperature and sensor of the drying box are working normally. If a temperature error occurs, it indicates that the temperature and sensor of the drying box are not working normally, and the temperature of the drying box needs to be adjusted to achieve the purpose of calibration.

[0018] 2. Compared with the sensor in a fixed position, the temperature sensor on the binding plate can detect the temperature of the drying box from the bottom to the top and from the front end to the rear end of the inner cavity, and can simultaneously detect the temperature of the bottom, middle and upper layers of the drying box. If the temperatures of the bottom, middle and upper layers of the drying box are constant, the temperature data displayed on the display over time is within a constant range. If there is a difference in the temperatures of the bottom, middle and upper layers of the drying box, the temperature data displayed on the display over time changes in a waveform. It is necessary to perform more comprehensive temperature detection and adjust the temperature of the drying box to achieve a more accurate calibration.

[0019] 3. The temperature calibration sensor mechanism is easy to use or disassemble, making it more convenient to calibrate the temperature of the drying oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention relates to a sensing mechanism for temperature calibration of a drying oven and an axonometric drawing of the drying oven.

[0021] Figure 2 The present invention provides a sensing mechanism for temperature calibration of a drying oven and a front view of the drying oven.

[0022] Figure 3 An axonometric diagram of a sensing mechanism for temperature calibration of a drying oven.

[0023] Figure 4 for Figure 3 -A: A partial enlarged view.

[0024] Figure 5 This is a diagram of a sensor mechanism for temperature calibration of a drying oven.

[0025] Figure 6 The left side diagram shows a sensor mechanism for temperature calibration of a drying oven.

[0026] Figure 7 This is the axonometric drawing of the connecting rod.

[0027] Figure 8 This is the axonometric drawing of the binding plate.

[0028] Figure 9 Figure 8 -B is a partial enlarged view.

[0029] In the figure: connecting rod 100, internal thread 110, external thread 120, diagonal top cone 200, top cone body 210, universal joint 220, fine-tuning sleeve 230, pull rope ring 300, motor 310, clamp 320, extension rod 330, rotating ring 340, limit plate 350, lead 400, binding plate 500, buckle 510, first buckle plate 511, first half groove 512, second buckle plate 513, second half groove 514, threaded locking rod 515, clamping plate 520, sensor slot 521, temperature sensor 530, humidity sensor 540, display 600, drying box 700. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The following will further describe the technical solution of the present invention in conjunction with the drawings of the embodiments of the present invention, and the present invention is not limited to the following specific implementation methods.

[0031] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc. indicating an orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0032] Please see Figures 1 to 9 A sensing mechanism for temperature calibration of a drying box 700 is installed in the inner cavity of the drying box 700 and is used to calibrate the temperature of the drying box 700. It includes several connecting rods 100, a diagonal top cone 200, a pair of pull rope rings 300, a binding plate 500 and a display 600.

[0033] Several sections of the connecting rods 100 are connected in sequence, and adjacent connecting rods 100 can be connected by threaded connection or expansion connection to ensure that the connecting rods 100 have a preset length.

[0034] The diagonal top cone 200 is detachably mounted on both ends of the connecting rod 100, and the diagonal top cone 200 is pressed against the top corner of the inner cavity of the drying box 700. The top corner of the inner cavity of the drying box 700 specifically refers to the upper top corner and the lower bottom corner of the inner cavity of the drying box 700, and the top angle and the bottom angle are at the farthest distance. The diagonal top cone 200 at one end of the connecting rod 100 is pressed against the upper top corner, and the diagonal top cone 200 at the other end of the connecting rod 100 is pressed against the lower bottom corner.

[0035] The draw rope ring 300 is arranged on the diagonal top cone 200, and a pair of the draw rope rings 300 are arranged near the top corner of the inner cavity of the drying box 700, that is, one draw rope ring 300 is located near the upper top corner of the inner cavity of the drying box 700, and the other draw rope ring 300 is located near the lower bottom corner of the inner cavity of the drying box 700. A lead wire 400 is wound on the draw rope ring 300, and the lead wire 400 connects a pair of the draw rope rings 300. The draw rope ring 300 is provided with a motor 310, and the motor 310 drives the draw rope ring 300 to rotate. When the motor 310 on one of the draw rope rings 300 is driven, it drives the draw rope ring 300 to rotate and wind the lead wire 400. At the same time, it drives the other draw rope ring 300 to rotate. At this time, the lead wire 400 is wound from the side of the driven draw rope ring 300 to the side that drives the draw rope ring 300.

[0036] The lead wire 400 is made of a high-temperature resistant soft material, such as a thin steel wire rope, asbestos rope, glass fiber rope, etc.

[0037] The binding plate 500 can be locked on the lead 400, and the binding plate 500 moves with the movement of the lead 400. The binding plate 500 is detachably provided with a temperature sensor 530. The display 600 is electrically connected to the temperature sensor 530 for real-time display of the temperature detected by the temperature sensor 530. Before driving the motor 310, the distance between a pair of the pull rope rings 300 is measured, that is, the length of the lead 400 that needs to be wound, and the drying box 700 is started to operate normally. When the binding plate 500 is located at the lower bottom corner of the inner cavity of the drying box 700, the upper top corner of the inner cavity of the drying box 700 is driven. The motor 310 drives the pull rope ring 300 to rotate, and the pull rope ring 300 winds the lead wire 400, driving the lead wire 400 to move from the bottom to the top, so that the motor 310 rotates slowly, and according to the rotation speed of the motor 310, through (the winding length of the lead wire 400 ÷ the rotation speed of the motor 310 = the preset time required for the binding plate 500 to move from the lower bottom corner of the inner cavity of the drying box 700 to the upper top corner), after reaching the preset time, the motor 310 stops rotating, and the temperature sensor 530 transmits the temperature of the inner cavity of the drying box 700 in real time to the display 600 for display.

[0038] Furthermore, the connecting rod 100 is provided with internal threads 110 and external threads 120 at both ends. Two adjacent connecting rods 100 are detachably threaded together via the internal threads 110 and the external threads 120. When connecting two connecting rods 100, the internal thread 110 of one connecting rod 100 is aligned with the external thread 120 of the other connecting rod 100, and then the connection is made. Using threaded connection is simpler and more convenient, and it is also faster to connect the connecting rod 100 that matches the cavity size of the drying box 700.

[0039] Further preferably, the diagonal top cone 200 includes a top cone body 210 and a universal joint 220. The top cone body 210 is placed at the top angle of the inner cavity of the drying box 700. The universal joint 220 is connected to the top cone body 210 and is used to adjust the direction of the top cone body 210. Since the top cone body 210 is adapted to the top angle of the inner cavity of the drying box 700, it can be better placed at the top angle of the inner cavity of the drying box 700, playing a stabilizing role. At the same time, the universal joint 220 is in a rotatable state. When the top cone body 210 is placed at the top angle of the inner cavity of the drying box 700, the universal joint 220 is rotated to achieve a state in which the top cone body 210 and the top angle of the inner cavity of the drying box 700 are in contact.

[0040] Specifically, the top cone body 210 is a triangular top cone to ensure that the three sides of the top corner of the inner cavity of the drying box 700 can be fitted together to prevent the connecting rod 100 from shaking.

[0041] Specifically, the universal joint 220 is one of a flexible universal joint 220, a cross-axis universal joint 220, and a ball joint universal joint 220.

[0042] Furthermore, for some areas of the drying box 700 where the internal space is relatively special, such as when objects are located at the top corners, the diagonal top cone 200 further includes a telescopically adjustable fine-tuning rod 230. One end of the fine-tuning rod 230 is connected to the universal joint 220, and the other end is connected to the connecting rod 100. The pull cord ring 300 is detachably mounted on the fine-tuning rod 230. The length of the connecting rod 100 is adjusted as a whole by the fine-tuning rod 230, so that the top cone body 210 can be fitted and secured near the top corners of the drying box 700 even when objects are located there. Simultaneously, when the fine-tuning rod 230 is extended, it drives the pull cord ring 300 to rotate, thereby lengthening the lead wire 400 between the pair of pull cord rings 300.

[0043] Preferably, the drawstring ring 300 is further provided with a clamp 320 and an extension rod 330. The clamp 320 is detachably engaged with the fine-tuning sleeve 230. One end of the extension rod 330 is connected to the clamp 320, and the other end is connected to the drawstring ring 300. The clamp 320 secures the drawstring ring 300 to the fine-tuning sleeve 230, making installation and removal simple and convenient before or after calibration. Furthermore, the clamp 320 allows the drawstring ring 300 to be engaged at any position on the fine-tuning sleeve 230.

[0044] Specifically, bolts and nuts are provided on the clamp 320 , and the clamp 320 is connected to the fine-tuning sleeve rod 230 through the bolts and nuts.

[0045] As a further description, the pull rope ring 300 includes a rotating ring 340 and limiting plates 350 located on both sides of the rotating ring 340. The rotating ring 340 can rotate relative to the limiting plates 350. The lead wire 400 is wound around the rotating ring 340 and is connected to the motor 310. The limiting plates 350 are fixedly connected to the extension rod 330. When the motor 310 rotates, the rotating ring 340 rotates, winding or unwinding the lead wire 400, while the limiting plates 350 do not rotate. The limiting plates 350 are mainly used to fix and connect to the extension plate, providing support and preventing the lead wire 400 from falling off the limiting plates 350.

[0046] Furthermore, the binding plate 500 includes a buckle 510 and a card plate 520, the buckle 510 is snapped and locked on the lead 400, and the card plate 520 is installed on the buckle 510. The card plate 520 can be installed on the buckle 510 in a hinged manner, or the card plate 520 can be installed on the buckle 510 by a threaded stud connection. The card plate 520 is used to snap on the temperature sensor 530, or the temperature sensor 530 can be fixed to the card plate 520 by binding with iron wire.

[0047] Furthermore, the buckle 510 includes a first buckle plate 511, a second buckle plate 513 and a threaded locking rod 515. The first buckle plate 511 is provided with a first half groove 512, and the second buckle plate 513 is provided with a second half groove 514. The first buckle plate 511 and the second buckle plate 513 are buckled together, and the first half groove 512 and the second half groove 514 are buckled together to clamp the lead 400. The first buckle plate 511 is provided with a first screw hole, and the second buckle plate A second screw hole is provided on 513, and the threaded locking rod 515 passes through the first screw hole and is tightened to the second screw hole. The first half groove 512 and the second half groove 514 are interlocked with each other, so that the first buckle plate 511 and the second buckle plate 513 can be fixed on the lead 400, and then tightened and locked by the threaded locking rod 515, thereby firmly fixing the first buckle plate 511 and the second buckle plate 513 on the lead 400, so that the buckle 510 moves synchronously with the lead 400.

[0048] Furthermore, the binding plate 500 is provided with a humidity sensor 540, and the card plate 520 is provided with a plurality of sensor slots 521 for receiving the temperature sensor 530 and the humidity sensor 540. The provision of the sensor slots 521 facilitates the attachment or detachment of the temperature sensor 530 and the humidity sensor 540 to the card plate 520.

[0049] Specifically, a protrusion is provided in the sensor slot 521 to more firmly engage the temperature sensor 530 or the humidity sensor 540 .

[0050] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to provide an exhaustive list of all implementation methods. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sensing mechanism for temperature calibration of a drying oven, installed in the inner cavity of the drying oven, for temperature calibration of the drying oven, characterized in that: It includes several sections of connecting rods, diagonal top cones, a pair of pull rope rings, a binding plate and a display. Several sections of the connecting rods are connected in sequence. The diagonal top cones are detachably installed at both ends of the connecting rods, and the top of the diagonal top cone is at the top corner of the inner cavity of the drying box. The pull rope ring is arranged on the diagonal top cone, and a pair of the pull rope rings are arranged close to the top corner of the inner cavity of the drying box. A lead is wound on the pull rope ring, and the lead connects a pair of the pull rope rings. A motor is arranged on the pull rope ring, and the motor drives the pull rope ring to rotate. The binding plate can be locked on the lead. A temperature sensor is detachably arranged on the binding plate. The display is electrically connected to the temperature sensor for real-time display of the temperature detected by the temperature sensor.

2. A sensing mechanism for temperature calibration of a drying oven according to claim 1, characterized in that: Both ends of the connecting rod are provided with internal threads and external threads, and two adjacent connecting rods are detachably screwed together through the internal threads and the external threads.

3. A sensing mechanism for temperature calibration of a drying oven according to claim 1, characterized in that: The diagonal top cone includes a top cone body and a universal joint. The top cone body is placed at the top corner of the inner cavity of the drying box. The universal joint is connected to the top cone body and is used to adjust the direction of the top cone body.

4. A sensing mechanism for temperature calibration of a drying oven according to claim 3, characterized in that: The diagonal top cone also includes a fine-tuning sleeve rod, which is telescopically adjustable. One end of the fine-tuning sleeve rod is connected to the universal joint, and the other end is connected to the connecting rod. The pull rope ring is detachably provided on the fine-tuning sleeve rod.

5. A sensing mechanism for temperature calibration of a drying oven according to claim 4, characterized in that: The drawstring ring is also provided with a clamp and an extension rod. The clamp is detachably engaged with the fine-tuning sleeve rod. One end of the extension rod is connected to the clamp, and the other end is connected to the drawstring ring.

6. A sensing mechanism for temperature calibration of a drying oven according to claim 5, characterized in that: The pull rope ring includes a rotating ring and limiting plates located on both sides of the rotating ring. The rotating ring can rotate relative to the limiting plates. The lead is wound on the rotating ring, and the rotating ring is connected to the motor. The limiting plates are fixedly connected to the extension rod.

7. The sensing mechanism for temperature calibration of a drying oven according to claim 1, characterized in that: The binding plate includes a buckle and a clamping plate. The buckle is clamped and locked on the lead. The clamping plate is installed on the buckle. The clamping plate is used to clamp the temperature sensor.

8. A sensing mechanism for temperature calibration of a drying oven according to claim 7, characterized in that: The clip includes a first buckle plate, a second buckle plate and a threaded locking rod, a first half groove is provided on the first buckle plate, a second half groove is provided on the second buckle plate, the first buckle plate and the second buckle plate are close to each other and buckled together, the first half groove and the second half groove are buckled together to clamp the lead, a first screw hole is provided on the first buckle plate, a second screw hole is provided on the second buckle plate, and the threaded locking rod passes through the first screw hole and is tightened to the second screw hole.

9. The sensing mechanism for temperature calibration of a drying oven according to claim 7, characterized in that: The binding plate is further provided with a humidity sensor, and the card plate is provided with a plurality of sensor slots, which are used for clamping the temperature sensor and the humidity sensor.

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