Automatic detection device for pultruded profiles

Abstract

The utility model belongs to the technical field of pultrusion profile, disclose a kind of pultrusion profile automation detection device, it includes rack, temperature and humidity detection mechanism, speed scanning mechanism, water cooling setting mechanism, pressure detection mechanism and control mechanism.Temperature and humidity detection mechanism is set to yarn storage section, speed scanning mechanism is set to speed scanning section, for the conveying speed of profile detection, water cooling setting mechanism is set to profile setting section, the feeding end and discharge end of setting mould are respectively communicated in pultrusion channel, cooling box is covered in the outside of setting mould, pressure detection mechanism is set to pressure detection section, the detection end of pressure detection mechanism is set to the inner wall of pultrusion channel, control mechanism communication connection is in temperature and humidity detection mechanism, speed scanning mechanism, water cooling setting mechanism and pressure detection mechanism.By the above setting, the pultrusion profile automation detection device of the application can realize automatic detection, function is more integrated, help to improve product quality.

Description

Technical Field

[0001] This utility model relates to the field of pultruded profile technology, and in particular to an automated testing device for pultruded profiles. Background Technology

[0002] Pultruded profiles, as high-strength and lightweight composite material products, are widely used in building structures, rail transportation, chemical pipelines and other fields. Their production process requires key steps such as yarn storage, profile conveying, shaping and quality inspection. The stability of the process parameters of each step directly determines the dimensional accuracy, mechanical properties and appearance quality of the profiles.

[0003] However, in existing pultrusion profile production equipment, the temperature and humidity of the storage environment are often manually monitored during the yarn storage stage. This makes the yarn susceptible to moisture absorption or aging due to abnormal temperature and humidity, resulting in uneven fiber distribution in the subsequently formed profiles and affecting product quality. Furthermore, the conveying speed cannot be precisely controlled during the profile transport process, and speed fluctuations can cause uneven stress on the profiles during the shaping stage, leading to cross-sectional deformation. Moreover, due to the relatively soft material of the profiles, they are difficult to solidify quickly during shaping and are easily deformed by external forces, resulting in poor shaping effects. Additionally, the contact pressure between the profiles and the conveyor channel is not monitored during production, making it impossible to promptly determine whether the profile cross-sectional dimensions meet requirements, easily leading to non-conforming products with out-of-tolerance dimensions. Therefore, existing pultrusion profile production equipment lacks automated monitoring at each stage of the pultrusion process, still relying on manual process control. This results in delayed adjustments to various process parameters, low production efficiency, and insufficient product quality stability.

[0004] Therefore, there is an urgent need for an automated testing device for pultruded profiles to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide an automated testing device for pultruded profiles, which can achieve automated testing, has more integrated functions, and helps to improve product quality.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An automated testing device for pultruded profiles, comprising:

[0008] The frame extends along the conveying direction of the profile and is provided with a pultrusion channel and includes a yarn storage section, a speed scanning section, a profile shaping section, and a pressure detection section arranged in sequence.

[0009] A temperature and humidity detection mechanism is installed in the yarn storage section;

[0010] A speed scanning mechanism, located in the speed scanning section, is used to detect the conveying speed of the profile;

[0011] A water-cooled shaping mechanism is provided in the profile shaping section, including a shaping mold and a cooling box. The inlet and outlet ends of the shaping mold are respectively connected to the pultrusion channel, and the cooling box covers the outside of the shaping mold.

[0012] A pressure detection mechanism is provided in the pressure detection section, and the detection end of the pressure detection mechanism is provided on the inner wall of the pultrusion channel;

[0013] The control mechanism is communicatively connected to the temperature and humidity detection mechanism, the speed scanning mechanism, the water-cooling shaping mechanism, and the pressure detection mechanism.

[0014] Optionally, the speed scanning mechanism includes a speed sensor and an adjustment frame. The adjustment frame is height-adjustable and is mounted on the frame. The speed sensor is mounted on the adjustment frame and is communicatively connected to the control mechanism.

[0015] Optionally, the shaping mold includes an upper mold base and a lower mold base. The lower mold base is fixedly connected to the frame, and the upper mold base is detachably connected to the lower mold base. The upper mold base and the lower mold base are provided with receiving grooves on their adjacent sides. After the two receiving grooves are closed, a shaping cavity is formed that fits the profile.

[0016] Optionally, the cooling box is provided with at least two sets of cooling pipes spaced apart along its circumference. The cooling pipes extend along the length of the pultrusion channel. The water inlet of the cooling pipes is connected to an external cold water tank through an electromagnetic water valve, and the electromagnetic water valve is electrically connected to the control mechanism.

[0017] Optionally, a flow sensor is provided between the water inlet of the cooling pipe and the external cold water tank, and the flow sensor is communicatively connected to the control mechanism.

[0018] Optionally, the pressure detection mechanism includes a plurality of pressure sensors, each of which is spaced apart along the extension direction of the pultrusion channel.

[0019] Optionally, the automated inspection device for pultruded profiles further includes an appearance wiping mechanism disposed between the yarn storage section and the speed scanning section. The appearance wiping mechanism includes a wiping roller and a wiping driver. The wiping roller is rotatably connected to the frame and configured to abut against the outer wall of the profile. The wiping driver can drive the wiping roller to rotate.

[0020] Optionally, a heat-conducting layer is provided between the inner wall of the cooling box and the outer wall of the pultrusion channel, and the outer wall of the cooling box is wrapped with a heat-insulating layer.

[0021] Optionally, the automated testing device for pultruded profiles further includes a data display screen, which is mounted on the frame and used to display the testing data of the temperature and humidity testing mechanism, the speed scanning mechanism, and the pressure testing mechanism.

[0022] Optionally, the rack is provided with an alarm component, which includes an audible and visual alarm and an alarm indicator light. The audible and visual alarm and the alarm indicator light are both communicatively connected to the control mechanism. When any of the detection values ​​of the temperature and humidity detection mechanism, the speed scanning mechanism, and the pressure detection mechanism exceed a preset threshold, the control mechanism controls the audible and visual alarm and the alarm indicator light to start.

[0023] The beneficial effects of this utility model are:

[0024] This invention provides an automated testing device for pultruded profiles, comprising a frame, a temperature and humidity detection mechanism, a speed scanning mechanism, a water-cooled shaping mechanism, a pressure detection mechanism, and a control mechanism. Along the profile conveying direction, the frame extends into a pultrusion channel and includes a yarn storage section, a speed scanning section, a profile shaping section, and a pressure detection section arranged sequentially, ensuring orderly connection of each process along the profile conveying direction and improving device integration. The temperature and humidity detection mechanism, located in the yarn storage section, monitors the temperature and humidity environment of the yarn storage section in real time. The speed scanning mechanism, located in the speed scanning section, detects the profile conveying speed, providing data support for the dynamic adjustment of subsequent profile shaping parameters. The water-cooled shaping mechanism, located in the profile shaping section, includes a shaping mold and a cooling box. The inlet and outlet ends of the shaping mold are connected to the pultrusion channel, thereby constraining the cross-sectional shape of the profile through the shaping mold to ensure that the profile dimensions meet design requirements. The cooling box covers the outside of the shaping mold, enabling the profile material to quickly solidify from a soft state, improving the stability of the shaping effect. A pressure testing mechanism is installed in the pressure testing section, with its testing end positioned on the inner wall of the pultrusion channel. This allows for real-time monitoring of the contact pressure between the profile and the inner wall of the pultrusion channel, enabling timely detection of dimensional deviations and improving product quality. The control mechanism is communicatively connected to the temperature and humidity testing mechanism, the speed scanning mechanism, the water-cooling shaping mechanism, and the pressure testing mechanism, enabling real-time parameter adjustments to enhance automation. Through these features, the pultruded profile automated testing device of this application achieves automated testing, with more integrated functions, contributing to improved product quality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the automated testing device for pultruded profiles provided in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the water-cooled shaping mechanism and the pressure detection mechanism provided in this embodiment of the utility model;

[0027] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0028] Figure 4 This is a schematic diagram of the speed scanning mechanism, control mechanism, and appearance wiping mechanism provided in an embodiment of this utility model;

[0029] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0030] In the picture:

[0031] 1. Frame; 11. Yarn Storage Section; 12. Speed ​​Scanning Section; 13. Profile Shaping Section; 14. Pressure Detection Section; 2. Temperature and Humidity Detection Mechanism; 3. Speed ​​Scanning Mechanism; 4. Water-Cooled Shaping Mechanism; 41. Shaping Mold; 411. Upper Mold Base; 412. Lower Mold Base; 42. Cooling Box; 421. Cooling Pipe; 5. Pressure Detection Mechanism; 6. Control Mechanism; 7. Appearance Wiping Mechanism; 71. Wiping Roller; 72. Wiping Driver. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1-5 As shown, this embodiment provides an automated testing device for pultruded profiles, which includes a frame 1, a temperature and humidity detection mechanism 2, a speed scanning mechanism 3, a water-cooled shaping mechanism 4, a pressure detection mechanism 5, and a control mechanism 6. Along the conveying direction of the profile, the frame 1 extends to provide a pultrusion channel and includes a yarn storage section 11, a speed scanning section 12, a profile shaping section 13, and a pressure detection section 14 arranged in sequence. A temperature and humidity detection mechanism 2 is located in the yarn storage section 11, and a speed scanning mechanism 3 is located in the speed scanning section 12 to detect the conveying speed of the profile. A water-cooled shaping mechanism 4 is located in the profile shaping section 13 and includes a shaping mold 41 and a cooling box 42. The feed end and discharge end of the shaping mold 41 are respectively connected to the pultrusion channel. The cooling box 42 covers the outside of the shaping mold 41. A pressure detection mechanism 5 is located in the pressure detection section 14, and the detection end of the pressure detection mechanism 5 is located on the inner wall of the pultrusion channel. A control mechanism 6 is communicatively connected to the temperature and humidity detection mechanism 2, the speed scanning mechanism 3, the water-cooled shaping mechanism 4, and the pressure detection mechanism 5.

[0038] In this embodiment, along the conveying direction of the profile, the frame 1 extends with a pultrusion channel and includes a yarn storage section 11, a speed scanning section 12, a profile shaping section 13, and a pressure detection section 14 arranged sequentially, so that each process is connected in an orderly manner along the conveying direction of the profile, improving the integration of the device. A temperature and humidity detection mechanism 2 is located in the yarn storage section 11, which can monitor the temperature and humidity environment of the yarn storage section 11 in real time. A speed scanning mechanism 3 is located in the speed scanning section 12, used to detect the conveying speed of the profile, providing data support for the dynamic adjustment of subsequent profile shaping parameters. A water-cooled shaping mechanism 4 is located in the profile shaping section 13, including a shaping mold 41 and a cooling box 42. The inlet and outlet ends of the shaping mold 41 are respectively connected to the pultrusion channel, thereby constraining the cross-sectional shape of the profile through the shaping mold 41 to ensure that the profile dimensions meet the design requirements. The cooling box 42 covers the outside of the shaping mold 41, enabling the profile material to quickly solidify from a soft state, improving the stability of the shaping effect. A pressure detection mechanism 5 is installed in the pressure detection section 14, with its detection end positioned on the inner wall of the pultrusion channel. This allows for real-time monitoring of the contact pressure between the profile and the inner wall of the pultrusion channel, enabling timely detection of dimensional deviations and improving product quality. A control mechanism 6 is communicatively connected to the temperature and humidity detection mechanism 2, the speed scanning mechanism 3, the water-cooling shaping mechanism 4, and the pressure detection mechanism 5, enabling real-time parameter adjustments to enhance automation. Through these features, the automated pultrusion profile testing device of this embodiment achieves automated testing, with more integrated functions, contributing to improved product quality.

[0039] It should be noted that the temperature and humidity detection mechanism 2 includes, but is not limited to, temperature and humidity sensor modules and integrated temperature and humidity monitors. The specific structure of these mechanisms is not specified here, as long as they can collect temperature and humidity data of the yarn storage section 11 in real time and accurately, providing a basis for judging whether the yarn storage environment is qualified. Furthermore, the control mechanism 6 includes, but is not limited to, a PLC control system or a microcontroller, as long as it can realize real-time detection and dynamic adjustment of various process parameters. The specific structure of the control mechanism 6 is not specified here.

[0040] The specific structure of the automated testing device for pultruded profiles is described below:

[0041] Specifically, the speed scanning mechanism 3 includes a speed sensor and an adjustment frame. The adjustment frame is height-adjustable and mounted on the frame 1. The speed sensor is mounted on the adjustment frame and is communicatively connected to the control mechanism 6. Through this configuration, the device can flexibly adjust the installation position of the speed sensor according to the height of the profile to be detected, ensuring that the sensor's detection end is always aligned with the profile conveying path. This facilitates the accurate transmission of the collected real-time profile conveying speed data to the control mechanism 6 for dynamic adjustment. The adjustment frame can be height-adjustable via a screw-type lifting adjustment structure or a snap-on positioning lifting structure. The speed sensor includes, but is not limited to, laser speed sensors and infrared Doppler speed sensors, as long as they can achieve the aforementioned functions; no further limitations are imposed here.

[0042] Specifically, the shaping mold 41 includes an upper mold base 411 and a lower mold base 412. The lower mold base 412 is fixedly connected to the frame 1 to ensure the positional accuracy of the profile during forming and to prevent the mold from shifting during the profile shaping process. The upper mold base 411 is detachably connected to the lower mold base 412. Both the upper mold base 411 and the lower mold base 412 have receiving grooves on their adjacent sides. After the two receiving grooves are closed, they form a shaping cavity that fits the profile, which facilitates the quick replacement of the appropriate upper mold base 411 according to the cross-sectional requirements of different profile specifications, without the need to replace the entire mold, thus improving production efficiency.

[0043] Specifically, the cooling box 42 is provided with at least two sets of cooling pipes 421 spaced apart along its circumference. The cooling pipes 421 extend along the length of the pultrusion channel. The water inlet of the cooling pipes 421 is connected to an external cold water tank through an electromagnetic water valve. The electromagnetic water valve is electrically connected to the control mechanism 6. The control mechanism 6 can precisely control the opening of the electromagnetic water valve according to the cooling requirements of the profile, thereby adjusting the cooling water flow in the cooling pipes 421 to ensure that the profile is cooled and solidified in time during the pultrusion channel.

[0044] More specifically, a flow sensor is installed between the water inlet of the cooling pipe 421 and the external cold water tank. The flow sensor is communicatively connected to the control mechanism 6, and can collect the cooling water flow data at the water inlet of the cooling pipe 421 in real time and feed the data back to the control mechanism 6. The flow sensor can be a turbine flow sensor, an electromagnetic flow sensor, etc., and no further restrictions are imposed here.

[0045] Specifically, the pressure detection mechanism 5 includes multiple pressure sensors, which are spaced apart along the extension direction of the pultrusion channel. These sensors can detect pressure at multiple locations during the conveying process of the profile within the pultrusion channel. By acquiring the pressure distribution between the profile and the inner wall of the channel, dynamic adjustments to process parameters can be achieved, thereby improving product quality. The pressure sensors can be of various types, such as column-type pressure sensors or thin-film pressure sensors; no further limitations are specified here.

[0046] Specifically, the automated inspection device for pultruded profiles also includes an appearance wiping mechanism 7 located between the yarn storage section 11 and the speed scanning section 12. The appearance wiping mechanism 7 includes a wiping roller 71 and a wiping driver 72. The wiping roller 71 is rotatably connected to the frame 1 and is configured to abut against the outer wall of the profile. The wiping driver 72 can drive the wiping roller 71 to rotate. During the profile conveying process, the wiping roller 71 contacts the profile surface through its own rotation, thereby cleaning the dust, resin residue and other impurities on the profile surface.

[0047] More specifically, in this embodiment, a bearing seat is fixedly connected to the frame 1. Both ends of the wiping roller 71 are rotatably engaged with the bearing seat via bearings. A detachable flexible wiping sleeve is fitted onto the outer periphery of the wiping roller 71. The wiping driver 72 includes a geared motor and a coupling. The geared motor is fixedly connected to one side of the bearing seat, and its output shaft is driven to one end of the wiping roller 71 via the coupling, enabling the wiping roller 71 to rotate around its own axis. Furthermore, the geared motor is communicatively connected to the control mechanism 6 via a wire, thereby adjusting the speed of the geared motor through the control mechanism 6 to match the speed of the wiping roller 71 with the profile conveying speed, thus ensuring a good cleaning effect.

[0048] In other embodiments, the wiping driver 72 includes a stepper motor and a gear transmission structure. The stepper motor drives the gear transmission structure to achieve the rotation of the wiping roller 71, which can also achieve the above-mentioned function. No further limitations are made here.

[0049] Specifically, a heat-conducting layer is provided between the inner wall of the cooling box 42 and the outer wall of the pultrusion channel, which can enhance the heat transfer efficiency between the cooling water in the cooling box 42 and the pultrusion channel and the forming mold 41. The outer wall of the cooling box 42 is wrapped with an insulation layer, which can reduce the loss of cold energy from the cooling box 42 to the external environment, prevent the cooling water temperature from rising due to heat absorption, and ensure stable cooling effect. The heat-conducting layer can be made of thermally conductive silicone, graphene thermal conductive sheet, etc., and the insulation layer can be made of rock wool, polyurethane insulation cotton, etc., as long as the above functions can be achieved. The specific structure of the above components is not limited here.

[0050] Specifically, the automated testing device for pultruded profiles also includes a data display screen, which is installed on the frame 1 and used to display the testing data from the temperature and humidity detection mechanism 2, the speed scanning mechanism 3, and the pressure detection mechanism 5. The data display screen can be a touch-screen LCD, an LED industrial display screen, or similar structure, thus intuitively presenting the key parameters of each process to the operators. This allows operators to monitor the temperature, humidity, profile speed, pressure, and other conditions during the production process in real time, facilitating the timely detection of abnormal parameters.

[0051] Specifically, the frame 1 is equipped with an alarm component, which includes an audible and visual alarm and an alarm indicator light. The audible and visual alarm and the alarm indicator light are both communicatively connected to the control mechanism 6. When any of the detection values ​​of the temperature and humidity detection mechanism 2, the speed scanning mechanism 3, and the pressure detection mechanism 5 exceed the preset threshold, the control mechanism 6 controls the audible and visual alarm and the alarm indicator light to be activated. This can promptly remind the operator to adjust parameters or check the equipment, avoid the abnormal state from continuously affecting the production of profiles, and thus reduce the generation of unqualified products.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An automated detection apparatus for pultruded profiles, characterized by, include: The frame (1) extends along the conveying direction of the profile and is provided with a pultrusion channel and includes a yarn storage section (11), a speed scanning section (12), a profile shaping section (13), and a pressure detection section (14) arranged in sequence. Temperature and humidity detection mechanism (2) is installed in the yarn storage section (11); A speed scanning mechanism (3) is provided in the speed scanning section (12) for detecting the conveying speed of the profile; A water-cooled shaping mechanism (4) is provided in the profile shaping section (13), including a shaping mold (41) and a cooling box (42). The feeding end and the discharging end of the shaping mold (41) are respectively connected to the pultrusion channel, and the cooling box (42) covers the outside of the shaping mold (41). A pressure detection mechanism (5) is provided in the pressure detection section (14), and the detection end of the pressure detection mechanism (5) is provided on the inner wall of the pultrusion channel; The control mechanism (6) is connected to the temperature and humidity detection mechanism (2), the speed scanning mechanism (3), the water cooling shaping mechanism (4), and the pressure detection mechanism (5).

2. The automated detection apparatus for pultruded profiles according to claim 1, characterized in that, The speed scanning mechanism (3) includes a speed sensor and an adjustment frame. The adjustment frame is height-adjustable and is mounted on the frame (1). The speed sensor is mounted on the adjustment frame and is communicatively connected to the control mechanism (6).

3. The automated pultrusion profile inspection apparatus of claim 1, wherein, The shaping mold (41) includes an upper mold base (411) and a lower mold base (412). The lower mold base (412) is fixedly connected to the frame (1), and the upper mold base (411) is detachably connected to the lower mold base (412). The upper mold base (411) and the lower mold base (412) are provided with receiving grooves on their respective sides. After the two receiving grooves are closed, a shaping cavity is formed that fits the profile.

4. The automated testing device for pultruded profiles according to claim 1, characterized in that, The cooling box (42) is provided with at least two sets of cooling pipes (421) spaced apart along its circumference. The cooling pipes (421) extend along the length of the pultrusion channel. The water inlet of the cooling pipes (421) is connected to an external cold water tank through an electromagnetic water valve. The electromagnetic water valve is electrically connected to the control mechanism (6).

5. The automated testing device for pultruded profiles according to claim 4, characterized in that, A flow sensor is provided between the water inlet of the cooling pipe (421) and the external cold water tank, and the flow sensor is communicatively connected to the control mechanism (6).

6. The pultrusion automated inspection apparatus of claim 1, wherein, The pressure detection mechanism (5) includes multiple pressure sensors, which are spaced apart along the extension direction of the pultrusion channel.

7. The pultrusion automated inspection apparatus of claim 1, wherein, The automated testing device for pultruded profiles also includes an appearance wiping mechanism (7) located between the yarn storage section (11) and the speed scanning section (12). The appearance wiping mechanism (7) includes a wiping roller (71) and a wiping driver (72). The wiping roller (71) is rotatably connected to the frame (1) and configured to abut against the outer wall of the profile. The wiping driver (72) can drive the wiping roller (71) to rotate.

8. The pultrusion automated inspection apparatus of claim 1, wherein, A heat-conducting layer is provided between the inner wall of the cooling box (42) and the outer wall of the pultrusion channel, and the outer wall of the cooling box (42) is wrapped with a heat-insulating layer.

9. The pultrusion automated inspection apparatus of claim 1, wherein, The automated testing device for pultruded profiles also includes a data display screen, which is set on the frame (1) and is used to display the testing data of the temperature and humidity testing mechanism (2), the speed scanning mechanism (3) and the pressure testing mechanism (5).

10. The automated testing device for pultruded profiles according to any one of claims 1-9, characterized in that, An alarm component is provided on the frame (1). The alarm component includes an audible and visual alarm and an alarm indicator light. The audible and visual alarm and the alarm indicator light are both connected to the control mechanism (6). When any of the detection values ​​of the temperature and humidity detection mechanism (2), the speed scanning mechanism (3), and the pressure detection mechanism (5) exceed a preset threshold, the control mechanism (6) controls the audible and visual alarm and the alarm indicator light to start.

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