Testing device for airflow temperature of hot air gun

Abstract

The utility model provides a device for testing airflow temperature of a hot air gun. The device comprises an airflow protection box body assembly, a hot air gun fixing assembly and a temperature sensor fixing assembly. The airflow protection box body assembly comprises a box body, a heat insulation cabin, a heat flow guider, a flow guide pipe and a noise reduction buffer, and drainage and isolation of high-temperature airflow of the heat gun are achieved. The hot air gun fixing assembly comprises a first guide rail, a sliding seat, a connecting piece and a hoop, and is used for fixing a hot air gun body and adjusting the horizontal distance and the vertical distance between the hot air gun body and the sensor; the sensor fixing assembly comprises a second guide rail, a sliding block and a mounting base, and the temperature sensor is fixed and the distance between a probe and a hot air gun muzzle is adjusted. The device can solve the problem that no fixing device exists during calibration of the heat gun, and ensures that the axial distance from the center of a muzzle of the heat gun to a probe of a temperature sensor meets the requirement during testing; meanwhile, the influence of high-temperature airflow on the detection environment temperature can be effectively prevented, and the risk of burn caused by the high-temperature airflow is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of airflow temperature testing technology, and specifically relates to a device for testing the airflow temperature of a hot air gun. Background Technology

[0002] Before use, the airflow temperature of a hot air gun needs to be tested at its operating temperature. Currently published methods for testing the operating temperature of constant-temperature hot air guns use a hot air gun handle bracket as shown in Figure 1. This bracket consists of two iron wires and a wooden board. The test specifies that the hot air gun handle is placed horizontally on the wooden board of the workbench, and the temperature probe is positioned on a central axis 12mm ± 2mm from the air outlet. This testing device has the following defects: First, it lacks measures to secure the hot air gun body, resulting in unstable mounting. Second, it lacks measures to fix and adjust the position of the temperature probe, making it impossible to adjust the distance between the temperature probe and the hot air gun nozzle, and failing to ensure that the temperature probe is on the central axis of the hot air gun outlet. Third, this method targets high-temperature airflow without protective measures, lacking protection against burns to people and surrounding objects caused by the high-temperature airflow, and lacking protective measures against the impact of the high-temperature airflow on the measurement environment. Utility Model Content

[0003] The purpose of this invention is to solve the problems existing in the hot air gun airflow temperature testing device, such as the lack of fixing measures for the hot air gun and temperature probe, the inability to ensure that the temperature probe is accurately placed on the central axis of the hot air gun outlet, and the lack of protection measures for high-temperature airflow. Therefore, this invention provides a hot air gun airflow temperature testing device.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] A device for testing the airflow temperature of a hot air gun is provided, including an airflow protection housing assembly, a hot air gun fixing assembly, and a sensor fixing assembly;

[0006] The airflow protection enclosure assembly is used to guide and isolate the high-temperature airflow from the hot air gun during testing, and includes a enclosure, a heat insulation chamber, a heat flow guide, a flow guide tube, and a silencer. The enclosure houses the heat insulation chamber, heat flow guide, flow guide tube, silencer, hot air gun mounting components, and sensor mounting components. The heat insulation chamber isolates the heat emitted by the heat flow guide and flow guide tube, and releases heat through heat dissipation holes on the enclosure, and is connected inside the enclosure. The heat flow guide is slidably mounted on the side wall of the heat insulation chamber to guide the hot airflow from the hot air gun to the flow guide tube. The two ends of the flow guide tube are connected to the heat flow guide and the silencer located outside the enclosure, respectively, to guide the hot airflow to the silencer. The silencer reduces the density and temperature of the hot airflow exiting from the flow guide tube.

[0007] The hot air gun fixing assembly is used to fix the body of the hot air gun to be tested. It is located outside the heat insulation chamber inside the housing and includes a first guide rail, a sliding seat, a connecting piece, and a clamp. The clamp is used to clamp the hot air gun body so that the hot air gun body is aligned with the heat flow guide. The first guide rail is fixed to the housing. The sliding seat is movably connected to the first guide rail to adjust the horizontal distance between the hot air gun and the heat flow guide. The connecting piece is movably connected to the sliding seat to adjust the vertical distance between the hot air gun and the heat flow guide.

[0008] The sensor fixing assembly is used to fix a temperature sensor that measures the temperature of the hot air stream blown out by the hot air gun, aligning the temperature sensor with the center of the clamp and located outside the heat insulation chamber inside the housing. It includes a second guide rail, a slider, and a mounting base. The mounting base is used to install the temperature sensor and is fixed to the slider. The second guide rail is fixed to the housing, and the slider can slide along the second guide rail to adjust the horizontal distance between the temperature sensor and the hot air gun body.

[0009] Furthermore, the airflow protection enclosure assembly also includes heat sinks, which are connected to the airflow guide pipes inside the heat insulation chamber to release the heat from the heat in the heat insulation chamber.

[0010] Furthermore, the airflow protection enclosure assembly also includes a bushing fixed to the heat insulation chamber, and a heat flow deflector is slidably fitted inside the bushing to adjust the distance from the temperature sensor.

[0011] Furthermore, the enclosure is open on one side and includes, in addition to the front and rear side panels, an upper side panel, a left side panel, and a lower side panel connected in sequence. The heat insulation chamber is located at the corner where the upper and left side panels connect. The hot air gun fixing assembly is connected to the upper side panel, and the sensor fixing assembly is connected to the lower side panel.

[0012] Furthermore, the enclosure also includes a right-side panel that can be opened and closed on the open side.

[0013] Furthermore, a handle is provided on the right side panel for easy gripping and opening / closing operations.

[0014] Furthermore, the movement of the sliding seat on the first guide rail and the movement of the slider on the second guide rail are achieved electrically.

[0015] The advantages of this utility model are:

[0016] The hot air gun airflow temperature testing device proposed in this utility model has a hot air gun body fixing component and a temperature sensor fixing component set on the housing. This not only ensures that the hot air gun and temperature sensor are firmly clamped during the hot air gun airflow temperature test, but also allows the hot air gun and temperature sensor to move horizontally and vertically, realizing accurate adjustment and alignment of the distance between the temperature sensor probe and the hot air gun nozzle. This ensures that the center of the temperature sensor probe and the hot air gun nozzle are on the same horizontal line and the distance meets the requirements, thereby improving the quality of the hot air gun airflow temperature test. At the same time, the housing and its internal heat insulation chamber, heat flow guide, flow guide tube and silencer can realize the diversion and isolation of the high temperature airflow from the hot air gun, which can prevent the high temperature airflow from burning calibration personnel, equipment and surrounding objects, and reduce the safety risks of hot air gun airflow temperature testing operations. Attached Figure Description

[0017] The above and / or other features and advantages of the present invention will become more readily understood from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0018] Figure 1 It is the bracket used in existing hot air gun airflow temperature testing;

[0019] Figure 2 This is a schematic diagram of the overall structure of the hot air gun airflow temperature testing device of this utility model;

[0020] Figure 3 This is a front view of the testing device of this utility model;

[0021] Figure 4 The testing device of this utility model is along... Figure 3 The left view is captured by line AA in the middle;

[0022] Figure 5 The testing device of this utility model is along... Figure 4 The view shown by line BB in the image illustrates the structure of the hot air gun mounting assembly.

[0023] In the picture:

[0024] 100-Airflow protection enclosure assembly, 101-Enclosure, 102-Insulation chamber, 103-Heat flow guide, 104-Flow guide pipe, 105-Silence damper, 106-Heat dissipation hole, 107-Heat dissipation fin, 108-Bushing;

[0025] 200-Hot air gun fixing assembly, 201-First guide rail, 202-Bracket, 203-Sliding seat, 204-Connecting piece, 205-Clamp, 206-Locking bolt;

[0026] 300-Sensor fixing assembly, 301-Second guide rail, 302-Slider, 303-Mounting base;

[0027] 1000 - Temperature sensor. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0029] It should be noted that, in the context of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0030] Furthermore, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] This utility model provides a device for testing the airflow temperature of a hot air gun. It is used to clamp a hot air gun and a thermometer during the testing process of the airflow temperature of the hot air gun, while adjusting the distance between the two and ensuring that the temperature probe is accurately placed on the central axis of the air outlet of the hot air gun. It can also prevent the high-temperature airflow blown out by the hot air gun from causing burns to people and surrounding objects, and provides protective measures for the measurement environment.

[0032] First, the overall reference Figure 2 The device for testing the airflow temperature of a hot air gun provided by this utility model includes an airflow protection box assembly 100, a hot air gun fixing assembly 200, and a sensor fixing assembly 300. The airflow protection box assembly 100 is used to guide and isolate the high-temperature airflow from the hot air gun during the test. The hot air gun fixing assembly 200 is used to fix the gun body of the hot air gun to be tested. The sensor fixing assembly 300 is used to fix the temperature sensor 1000 that measures the temperature of the hot airflow blown out by the hot air gun.

[0033] Reference Figure 3 and Figure 4The airflow protection enclosure assembly 100 includes an enclosure 101, a heat insulation chamber 102, a heat flow guide 103, a flow guide pipe 104, and a silencer 105. The enclosure 101 houses the heat insulation chamber 102, the heat flow guide 103, the flow guide pipe 104, the silencer 105, the hot air gun mounting assembly 200, and the sensor mounting assembly 300. The heat insulation chamber 102 isolates the heat emitted by the heat flow guide 103 and the flow guide pipe 104 and is connected within the enclosure 101, primarily by welding. Heat is released through heat dissipation holes 106 on the enclosure 101. These holes can be louvered, allowing for ventilation and heat dissipation while preventing foreign objects from entering the enclosure. The heat flow guide 103 is slidably mounted on the side wall of the heat insulation chamber 102 to guide the hot airflow from the hot air gun to the flow guide pipe 104. The flared end of the heat flow guide 103 faces the muzzle of the hot air gun. The two ends of the flow guide 104 are connected to the heat flow guide 103 and the silencer 105 located outside the housing 101, respectively, to guide the hot airflow to the silencer 105. The silencer 105 can be fixedly connected to the flow guide 104 by bolts. The silencer 105 is used to reduce the density and temperature of the hot airflow discharged from the flow guide 104.

[0034] In some embodiments, the housing 101 is open on one side to accommodate a heat gun and a temperature sensor, allowing for manual adjustment of their distance and alignment. In addition to a front and rear panel, the housing 101 includes a top panel, a left panel, and a bottom panel connected in sequence. An insulation chamber 102 is located at the corner where the top and left panels connect. The heat gun mounting assembly 200 is connected to the top panel, and the sensor mounting assembly 300 is connected to the bottom panel. In the illustrated embodiment, the housing 101 also includes a right side panel that can be opened and closed on the open side. Specifically, the right side panel of the housing 101 is provided with a handle for easy gripping and opening / closing.

[0035] In a preferred embodiment, the airflow protection enclosure assembly 100 further includes a heat sink 107, which is connected to the guide pipe 104 inside the heat insulation chamber 102 to release the temperature of the hot air in the heat insulation chamber 102.

[0036] The airflow protection enclosure assembly 100 also includes a bushing 108, which is fixed to the heat insulation chamber 102 and can be bolted together. The heat flow deflector 103 is slidably fitted inside the bushing 108 with a small clearance to adjust the distance to the temperature sensor 1000. The flared end is close to the back of the temperature sensor probe to ensure that the high-temperature airflow enters the heat flow deflector 103 as quickly and completely as possible.

[0037] Reference Figure 4 and Figure 5The hot air gun mounting assembly 200 is located inside the housing 101 outside the heat insulation chamber 102, and includes a first guide rail 201. The first guide rail 201 can be mounted to the housing 101 via two brackets 202 at each end of the guide rail. The hot air gun mounting assembly 200 also includes a sliding seat 203, a connecting piece 204, and a clamp 205. The clamp 205 is used to clamp the hot air gun body, aligning the hot air gun body with the heat flow guide 103. An adjustable locking bolt 206 fixes the hot air gun in the clamp 206. The first guide rail 201 is fixed to the housing 101, and the sliding seat 203 is movably connected to the first guide rail 201 to adjust the horizontal distance between the hot air gun and the heat flow guide 103. The tab 204 is movably connected to the slide seat 203 to adjust the vertical distance between the hot air gun and the heat flow guide 103. The tab can be located on both sides of the slide seat. After the tab is adjusted, the screw is tightened to lock the tab onto the slide seat. This can be achieved using known mature technology.

[0038] Reference Figure 4 The sensor fixing assembly 300, when clamping the temperature sensor 1000, ensures that the temperature sensor is directly facing the clamp 206 and aligned with the center of the clamp 206. It is located outside the heat insulation chamber 102 inside the housing 101 and includes a second guide rail 301, a slider 302, and a mounting base 303. The mounting base 303 is used to install the temperature sensor and is fixed to the slider 302. The second guide rail 301 is fixed to the housing 101. The slider 302 can slide along the second guide rail 301 to adjust the horizontal distance between the temperature sensor 1000 and the hot air gun body.

[0039] According to this utility model, in order to facilitate the adjustment of the distance between the hot air gun and the temperature sensor, the movement of the sliding seat 203 on the first guide rail 201 and the movement of the slider 302 on the second guide rail 301 can be achieved electrically. For this purpose, an automatic control system can be set to automatically make the distance between the temperature sensor probe and the hot air gun nozzle reach the set distance.

[0040] It should be noted that, under normal circumstances, there is no need to operate the hot air gun fixing component 200, that is, the position of the clamp 205 that holds the hot air gun is generally not adjusted, because when installing this component, it is ensured that the temperature sensor probe and the center of the hot air gun nozzle are on the same horizontal line. During each test, only the sensor fixing component 300 needs to be operated. Specifically, the horizontal position of the slider 302 that holds the temperature sensor 1000 on the second guide rail 301 is adjusted. That is, by adjusting the position of the temperature sensor, the distance between the temperature sensor probe and the hot air gun nozzle is changed. Once the distance between the two is appropriate, the test can begin.

[0041] However, if the hot air gun has a special size, the center of the hot air gun nozzle cannot be aligned with the sensor probe without adjusting the hot air gun fixing assembly 200. In this case, the hot air gun fixing assembly 200 needs to be operated, specifically adjusting the vertical position of the connecting piece 204 on the sliding seat 203 to align the hot air gun with the sensor. Furthermore, if the movement of the slider 302 on the second guide rail 301 is electrically driven, the hot air gun fixing assembly 200 also needs to be operated in case of motor failure. Specifically, the horizontal position of the sliding seat 203 on the first guide rail 201 needs to be adjusted to ensure the distance between them meets the requirements.

[0042] After adjusting the positions of the hot air gun and the sensor, turn on the power switch of the hot air gun and preheat it for the specified time. Then, adjust the temperature of the hot air gun to the calibration point and adjust the airflow speed. Use electrical measuring equipment to record the temperature sensor measurement data and process the recorded data. During the test, the hot airflow enters the guide tube and the silencer through the heat flow guide, where its density and temperature are reduced. The external airflow enters the heat insulation chamber through the louvers on the chamber body, carrying away the heat from the heat sink and reducing the exhaust temperature of the airflow while ensuring that the temperature inside the chamber remains relatively stable within a certain range.

[0043] Therefore, as described above, this utility model achieves accurate adjustment and alignment of the distance between the temperature sensor probe and the hot air gun nozzle, thereby ensuring that the center of the temperature sensor probe and the hot air gun nozzle are on the same horizontal line and the distance meets the requirements, thus improving the quality of hot air gun airflow temperature testing; at the same time, the housing and its internal heat insulation chamber, heat flow guide, flow guide tube and silencer can realize the diversion and isolation of high temperature airflow from the hot air gun, which can avoid burns to calibration personnel, equipment and surrounding objects by high temperature airflow, and reduce the safety risks of hot air gun airflow temperature testing operations.

[0044] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered as included within the protection scope of the present invention.

Claims

1. A device for testing the airflow temperature of a hot air gun, characterized in that: This includes airflow protection housing components, hot air gun mounting components, and sensor mounting components; The airflow protection enclosure assembly is used to guide and isolate the high-temperature airflow from the hot air gun during testing, and includes a enclosure, a heat insulation chamber, a heat flow guide, a flow guide tube, and a silencer. The enclosure houses the heat insulation chamber, heat flow guide, flow guide tube, silencer, hot air gun mounting assembly, and sensor mounting assembly. The heat insulation chamber isolates the heat emitted by the heat flow guide and the flow guide tube, and releases heat through heat dissipation holes on the enclosure, and is connected to the enclosure. The heat flow guide is slidably mounted on the side wall of the heat insulation chamber to guide the hot airflow from the hot air gun to the flow guide tube. Both ends of the flow guide tube are connected to the heat flow guide and the silencer located outside the enclosure, respectively, to guide the hot airflow to the silencer. The silencer reduces the density and temperature of the hot airflow discharged from the flow guide tube. The hot air gun fixing assembly is used to fix the gun body of the hot air gun to be tested, and is located outside the heat insulation chamber inside the housing. It includes a first guide rail, a sliding seat, a connecting piece, and a clamp. The clamp is used to clamp the hot air gun body so that the hot air gun body is aligned with the heat flow guide. The first guide rail is fixed to the housing. The sliding seat is movably connected to the first guide rail to adjust the horizontal distance between the hot air gun and the heat flow guide. The connecting piece is movably connected to the sliding seat to adjust the vertical distance between the hot air gun and the heat flow guide. The sensor fixing assembly is used to fix a temperature sensor that measures the temperature of the hot air stream blown out by the hot air gun, aligning the temperature sensor with the center of the clamp and located outside the heat insulation chamber inside the housing. It includes a second guide rail, a slider, and a mounting base. The mounting base is used to install the temperature sensor and is fixed to the slider. The second guide rail is fixed to the housing. The slider can slide along the second guide rail to adjust the horizontal distance between the temperature sensor and the hot air gun body.

2. The device for testing the airflow temperature of a hot air gun according to claim 1, characterized in that: The airflow protection enclosure assembly also includes a heat sink, which is connected to the airflow guide pipe inside the heat insulation chamber to release the temperature of the hot air in the heat insulation chamber.

3. The device for testing the airflow temperature of a hot air gun according to claim 1 or 2, characterized in that: The airflow protection enclosure assembly also includes a bushing, which is fixed to the heat insulation chamber, and the heat flow guide is slidably fitted inside the bushing to adjust the distance from the temperature sensor.

4. The device for testing the airflow temperature of a hot air gun according to claim 1 or 2, characterized in that: The enclosure is open on one side and includes a front panel, a rear panel, an upper panel, a left panel, and a lower panel connected in sequence. The heat insulation chamber is located at the corner where the upper panel and the left panel are connected. The hot air gun fixing assembly is connected to the upper panel, and the sensor fixing assembly is connected to the lower panel.

5. The device for testing the airflow temperature of a hot air gun according to claim 1 or 2, characterized in that: The enclosure also includes a right side panel that can be opened and closed on the open side.

6. The device for testing the airflow temperature of a hot air gun according to claim 5, characterized in that: The right side panel is equipped with a handle for easy gripping and opening / closing operations.

7. The device for testing the airflow temperature of a hot air gun according to claim 1 or 2, characterized in that: The movement of the sliding block on the first guide rail and the movement of the slider on the second guide rail are achieved electrically.

Images