Flame detection device, fire extinguishing apparatus, and processing apparatus

Abstract

The utility model discloses a flame detection device, fire extinguishing equipment and processing equipment, including device shell, flexible protective sleeve and ultraviolet sensor, flexible protective sleeve and ultraviolet sensor install in device shell, flexible protective sleeve is equipped with mounting hole, ultraviolet sensor includes installation portion, installation portion installs in mounting hole, flexible protective sleeve still is equipped with the buffer hole of independent of mounting hole. The utility model discloses a flame detection device, fire extinguishing equipment and processing equipment, greatly reduced the probability of ultraviolet sensor due to the drop and lead to the breakage, and ultraviolet sensor drop resistance is better.

Description

Technical Field

[0001] This utility model relates to the field of flame combustion detection technology, and in particular to a flame detection device, fire extinguishing equipment and processing equipment. Background Technology

[0002] Ultraviolet (UV) sensors, as specialized sensors for ultraviolet (UV) monitoring, are used to monitor changes in UV intensity within the 160nm~260nm range, thereby detecting flame conditions. Because of the narrower wavelength range they monitor, UV sensors are less prone to false alarms than infrared sensors. However, existing UV sensors are structurally fragile and easily damaged by drops, leading to gas leakage and misalignment of the nickel plate within the sensor. The drop damage rate of commercially available UV sensors is as high as 90%. Utility Model Content

[0003] In view of this, the present invention provides a flame detection device that greatly reduces the probability of ultraviolet sensor being damaged due to drops, and the ultraviolet sensor has better drop resistance.

[0004] This utility model also provides a fire extinguishing device and a processing device.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flame detection device, comprising:

[0007] Device casing;

[0008] A flexible protective sleeve is installed inside the outer shell of the device, and the flexible protective sleeve has mounting holes;

[0009] An ultraviolet sensor is installed inside the housing of the device. The ultraviolet sensor includes a mounting part, which is installed inside the mounting hole.

[0010] The flexible protective sleeve also has a buffer hole independent of the mounting hole.

[0011] Optionally, the mounting part is interference-fitted with the mounting hole to be fixed inside the mounting hole;

[0012] Alternatively, a fixing element is provided in the mounting hole, and the mounting part is fixed in the mounting hole by the fixing element.

[0013] Optionally, the flexible protective sleeve includes a first side and a second side arranged opposite to each other, and the device housing includes a mounting surface side and a collection surface side, wherein the first side abuts against the inner wall of the collection surface side of the device housing, and the second side abuts against the inner wall of the mounting surface side of the device housing.

[0014] The buffer hole is disposed between the first side of the flexible protective sleeve and the mounting hole, and / or, the buffer hole is disposed between the second side of the flexible protective sleeve and the mounting hole.

[0015] Optionally, the extension direction of the buffer hole is parallel to the extension direction of the center line of the mounting hole, and the buffer hole is provided through the first surface or the second surface;

[0016] The buffer hole includes a first buffer hole and a second buffer hole. At least two first buffer holes are provided between the first side of the flexible protective sleeve and the mounting hole, and at least two second buffer holes are provided between the second side of the flexible protective sleeve and the mounting hole.

[0017] Optionally, both the first surface and the second surface are provided with a first buffer groove, the first buffer groove on the first surface is located between two adjacent first buffer holes, and the first buffer groove on the second surface is located between two adjacent second buffer holes.

[0018] And / or, the first surface and the second surface are connected by a third surface and a fourth surface that are arranged opposite to each other, and a second buffer groove is provided on both the third surface and the fourth surface, the second buffer groove being located between the first buffer hole and the second buffer hole.

[0019] Optionally, the device housing has a receiving cavity for accommodating the flexible protective sleeve and the ultraviolet sensor. The receiving surface of the device housing has a detection window communicating with the receiving cavity. The ultraviolet sensor includes a detection part, which is exposed on the receiving surface of the device housing through the detection window.

[0020] Optionally, the system further includes a control motherboard located within the receiving cavity and electrically connected to the ultraviolet sensor. The control motherboard includes a component surface and a detection surface disposed opposite to each other. The detection surface faces the ultraviolet sensor. The component surface of the control motherboard is used to mount electronic components. A self-test lamp electrically connected to the electronic components is disposed on the detection surface. The self-test lamp is located between the detection surface and the ultraviolet sensor and is disposed opposite to the detection part of the ultraviolet sensor. The self-test lamp is used to emit self-test light to the detection part of the ultraviolet sensor.

[0021] Optionally, the device housing has a first protective plane and a second protective plane respectively disposed at both ends of the detection part of the ultraviolet sensor on the sampling surface side, and a mounting plane is provided on the mounting surface side. The distance between the first protective plane and the mounting plane is L1, and the distance between the second protective plane and the mounting plane is L2, where L1 > L2.

[0022] The first protective plane and the second protective plane are arranged parallel to the mounting plane.

[0023] Optionally, the distance between the farthest point of the detection part of the ultraviolet sensor from the mounting plane and the mounting plane is L3, where L1>L3>L2, the difference between L2 and L3 is in the range of 0.5mm-2mm, and the difference between L1 and L3 is in the range of 3.5mm~4mm.

[0024] And / or, the acquisition surface side of the device housing is further provided with an inclined surface, which is located between the first protective plane and the detection window.

[0025] Optionally, the mounting part includes a large mounting surface, and the ultraviolet sensor has a sensing surface inside, the sensing surface being arranged at a first angle with the large mounting surface;

[0026] The mounting surface is provided with a mounting plane, and the inner surface of the mounting hole is set at a second angle with the mounting plane, the value of the second angle being within the value range of the first angle.

[0027] As can be seen from the above technical solution, the flame detection device provided by this utility model uses a flexible protective sleeve to cover and fix the mounting part of the ultraviolet sensor. The flexible protective sleeve is provided with a buffer hole, and air enters into the buffer hole to form an air cavity. The flexible protective sleeve only restricts the freedom of the mounting part at the tail end of the ultraviolet sensor, and does not restrict the up-and-down swing of the detection part of the ultraviolet sensor. By using the protection of the flexible protective sleeve and the buffer of the air cavity in the buffer hole on the flexible protective sleeve, most of the impact force can be eliminated during the process of the ultraviolet sensor being dropped and impacted. Furthermore, the up-and-down swing of the detection part of the ultraviolet sensor can also eliminate some of the impact force, thereby greatly reducing the probability of the ultraviolet sensor being damaged due to drop. Since most of the impact force is eliminated, the displacement of the nickel plate inside the ultraviolet sensor due to drop is reduced, and the ultraviolet sensor has better drop resistance performance.

[0028] This utility model also provides a fire extinguishing device, including a gas injection device and the aforementioned flame detection device. The gas injection device and the flame detection device are electrically connected. The flame detection device is used to detect flames. When a flame is detected, the flame detection device sends an electrical signal to the gas injection device to execute fire extinguishing. The gas injection device injects fire extinguishing gas based on the electrical signal to execute fire extinguishing.

[0029] The fire extinguishing device of this utility model includes the flame detection device described above, and therefore has the advantages of the flame detection device described above, which will not be repeated here.

[0030] This utility model also provides a processing device, including the above-mentioned flame detection device. The processing device includes a processing head and a processing platform. The processing head is movably disposed above the processing platform for processing a workpiece placed on the processing platform. The flame detection device is disposed opposite to the processing platform for detecting flames on the processing platform.

[0031] The processing equipment of this utility model includes the flame detection device described above, and therefore has the advantages of the flame detection device described above, which will not be repeated here. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of the flame detection device provided in this embodiment of the present invention from one angle;

[0034] Figure 2 This is a schematic diagram of the flame detection device provided in an embodiment of the present invention from another angle;

[0035] Figure 3 This is a cross-sectional structural schematic diagram of the flame detection device provided in an embodiment of the present utility model;

[0036] Figure 4 A cross-sectional view of the ultraviolet sensor installed in a flexible protective sleeve according to an embodiment of the present invention;

[0037] Figure 5 A structural schematic diagram of the flexible protective sleeve provided in an embodiment of this utility model at one angle;

[0038] Figure 6 This is a structural schematic diagram of the flexible protective sleeve provided in another embodiment of the present utility model;

[0039] Figure 7 This is a schematic diagram of the structure of the ultraviolet sensor provided in an embodiment of the present invention;

[0040] Figure 8 A schematic diagram of the structure of the device housing of the flame detection device provided in this embodiment of the present invention, showing the collecting surface side of the device housing falling to the ground;

[0041] Figure 9 A schematic diagram of the field of view of the ultraviolet sensor provided in this embodiment of the utility model;

[0042] Figure 10 A schematic diagram of the field of view of the ultraviolet sensor provided in this embodiment of the present invention after an obstacle has been placed within its field of view;

[0043] Figure 11 A schematic diagram of the angle between the sensing surface and the mounting surface provided in an embodiment of this utility model;

[0044] Figure 12 A schematic diagram of the angle between the long side of the end face of the mounting hole and the collecting surface side provided in this embodiment of the utility model;

[0045] Figure 13 A schematic diagram of the structure of the ultraviolet sensor after the mounting part is installed in the mounting hole according to an embodiment of the present utility model;

[0046] Figure 14 This is a schematic diagram of the structure of a flame detection device provided in another embodiment of the present invention.

[0047] in:

[0048] 1. Device casing,

[0049] 101. Mounting surface side; 102. First protective plane; 103. Second protective plane; 104. Control main board; 105. Detection window; 106. Inclined surface.

[0050] 2. Ultraviolet sensor,

[0051] 201. Sensing surface; 202. Mounting section; 2021. Mounting panel.

[0052] 3. Flexible protective sleeve,

[0053] 301. Mounting hole; 302. Buffer hole; 3021. First buffer hole; 3022. Second buffer hole; 303. Second buffer groove; 304. First surface; 305. Second surface; 306. Third surface; 307. Fourth surface; 308. First buffer groove.

[0054] 4. Self-test light,

[0055] 5. Second adhesive layer,

[0056] 6. First adhesive layer,

[0057] 7. Obstacles

[0058] 8. Reflector. Detailed Implementation

[0059] This utility model discloses a flame detection device, which greatly reduces the probability of ultraviolet sensor being damaged due to drops, and the ultraviolet sensor has better drop resistance.

[0060] This utility model also discloses a fire extinguishing device and a processing device.

[0061] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0062] See Figures 1 to 14 The flame detection device of this utility model includes a device housing 1, a flexible protective sleeve 3, and an ultraviolet sensor 2. Both the flexible protective sleeve 3 and the ultraviolet sensor 2 are installed inside the device housing 1. The flexible protective sleeve 3 has a mounting hole 301. The ultraviolet sensor 2 includes a mounting part 202 and a detection part, and the mounting part 202 is installed inside the mounting hole 301. The flexible protective sleeve 3 also has a buffer hole 302 independent of the mounting hole 301, and the buffer hole 302 is arranged around the mounting hole 301.

[0063] Among them, the flexible protective sleeve 3 is made of a flexible material with cushioning properties, specifically such as a silicone sleeve or sponge. For example... Figure 5 and Figure 6 As shown, the buffer hole 302 is preferably a hollow hole with a notch structure set on the sidewall parallel to the hole axis.

[0064] The flame detection device of this utility model uses a flexible protective sleeve 3 to cover and fix the mounting part 202 of the ultraviolet sensor 2. The flexible protective sleeve 3 is provided with a buffer hole 302, and air enters into the buffer hole 302 to form an air cavity. The flexible protective sleeve 3 only restricts the degree of freedom of the mounting part 202 at the tail end of the ultraviolet sensor 2, and does not restrict the up-and-down swing of the detection part of the ultraviolet sensor 2. By using the protection of the flexible protective sleeve 3 and the buffer of the air cavity of the buffer hole 302 on the flexible protective sleeve 3, most of the impact force can be eliminated during the process of the ultraviolet sensor 2 being dropped and impacted. Furthermore, the up-and-down swing of the detection part of the ultraviolet sensor 2 can also eliminate part of the impact force, thereby greatly reducing the probability of the ultraviolet sensor 2 being damaged due to drop. Since most of the impact force is eliminated, the position of the nickel plate inside the ultraviolet sensor 2 is reduced due to drop, and the ultraviolet sensor 2 has better drop resistance.

[0065] In one possible embodiment, the flexible protective sleeve 3 is made of an elastic material, and the mounting portion 202 of the ultraviolet sensor 2 can be interference-fitted with the mounting hole 301 to fix the ultraviolet sensor 2 within the mounting hole 301; alternatively, a fixing member is provided within the mounting hole 301, and the mounting portion 202 is fixed within the mounting hole 301 by the fixing member. The fixing member can be adhesive, tape, or other commonly used connectors in the art, and is not limited here. In a specific embodiment, the mounting portion 202 is fixedly connected to the mounting hole 301 by a first adhesive layer 6 filled within the mounting hole 301. After the mounting portion 202 of the ultraviolet sensor 2 is placed within the mounting hole 301, the first adhesive layer 6 is used to fill it, connecting the mounting portion 202 to the flexible protective sleeve 3.

[0066] Among them, reference Figure 5 and Figure 6 The flexible protective sleeve 3 includes a first surface 304 and a second surface 305 arranged opposite to each other; such as Figure 2 As shown, the device housing 1 includes a mounting surface side 101 and a collection surface side. A first surface 304 abuts against the inner wall of the collection surface side of the device housing 1, and a second surface 305 abuts against the inner wall of the mounting surface side 101 of the device housing 1. A buffer hole 302 is disposed between the first surface 304 and the mounting hole 301 of the flexible protective sleeve 3, and / or, the buffer hole 302 is disposed between the second surface 305 and the mounting hole 301 of the flexible protective sleeve 3. In one embodiment, referring to… Figure 5 Buffer holes 302 are provided between the first surface 304 and the mounting hole 301, and between the second surface 305 and the mounting hole 301. In other embodiments, such as Figure 3 As shown, in order to position the flexible protective sleeve 3, the first surface 304 can also be fixedly connected to the inner wall of the collection surface side through the second adhesive layer 5.

[0067] In one embodiment, such as Figure 5 As shown, the extending direction of the buffer hole 302 is parallel to the extending direction of the centerline of the mounting hole 301, and the buffer hole 302 penetrates through the first surface 304 or the second surface 305. The buffer hole 302 includes a first buffer hole 3021 and a second buffer hole 3022. At least two first buffer holes 3021 are provided between the first surface 304 and the mounting hole 301 of the flexible protective sleeve 3, and at least two second buffer holes 3022 are provided between the second surface 305 and the mounting hole 301 of the flexible protective sleeve 3, in order to improve the buffering performance and improve the impact resistance. Specifically, as shown... Figure 6 As shown, two first buffer holes 3021 are provided on the first surface 304 side, and two second buffer holes 3022 are provided on the second surface 305 side.

[0068] To further improve the impact resistance of the first 304 and the second 305 surfaces, such as Figure 6As shown, both the first surface 304 and the second surface 305 are provided with a first buffer groove 308. The first buffer groove 308 on the first surface 304 is located between two adjacent first buffer holes 3021, and the first buffer groove 308 on the second surface 305 is located between two adjacent second buffer holes 3022. The positions of the first buffer groove 308 on the first surface 304 and the first buffer groove 308 on the second surface 305 may correspond or not. It can be understood that the groove depth of the first buffer groove 308 is set according to actual needs.

[0069] In one possible embodiment, the first surface 304 and the second surface 305 are connected by a third surface 306 and a fourth surface 307 arranged opposite to each other. To improve the impact resistance of the third surface 306 and the fourth surface 307, such as... Figure 6 As shown, a second buffer groove 303 is provided on both the third surface 306 and the fourth surface 307. The second buffer groove 303 is located between the first buffer hole 3021 and the second buffer hole 3033. One or more second buffer grooves 303 can be provided on the third surface 306 and the fourth surface 307. The number of second buffer grooves 303 on the third surface 306 and the fourth surface 307 can be the same or different.

[0070] To facilitate the housing of the ultraviolet sensor 2, a receiving cavity is provided inside the device housing 1. This cavity is used to accommodate the flexible protective sleeve 3 and the ultraviolet sensor 2. Figure 2 As shown, the device housing 1 has a detection window 105 on the collection surface side that communicates with the receiving cavity. The ultraviolet sensor 2 includes a detection unit, which is exposed on the collection surface side of the device housing 1 through the detection window 105, thereby facilitating the detection unit to collect flame signals.

[0071] In one possible embodiment, the flame detection device of this invention further includes a control main board 104 located within a receiving cavity, the control main board 104 being electrically connected to the ultraviolet sensor 2. The control main board 104 includes a component surface and a detection surface disposed opposite to each other, with the detection surface facing the ultraviolet sensor 2. The component surface of the control main board 104 is used to mount electronic components, such as… Figure 3 As shown, a self-test lamp 4, electrically connected to electronic components, is provided on the detection surface. The self-test lamp 4 is located between the detection surface and the ultraviolet sensor 2, and is positioned opposite to the detection part of the ultraviolet sensor 2. The self-test lamp 4 is used to emit self-test light to the detection part of the ultraviolet sensor 2. The self-test lamp 4 can emit ultraviolet light in the 255nm band, which is within the sensor's detection range. It can be used to periodically check the sensor's condition and whether the sensor is working properly.

[0072] To protect the detection part of the ultraviolet sensor 2 exposed on the acquisition surface side of the device housing 1, and to further reduce the probability of damage to the ultraviolet sensor 2 upon drop, such as Figure 1As shown, the device housing 1 has a first protective plane 102 and a second protective plane 103 respectively located at both ends of the detection section of the ultraviolet sensor 2 on the sampling surface side. The mounting surface 101 has a mounting plane. The distance between the first protective plane 102 and the mounting plane is L1, and the distance between the second protective plane 103 and the mounting plane is L2. To protect the ultraviolet sensor 2, the relationship between L1 and L2 is set to L1 > L2. When the sampling surface side of the device housing 1 falls to a horizontal surface, such as... Figure 8 As shown, the edges of the first protective plane 102 and the second protective plane 103 are in contact with the horizontal ground, forming a suspended bridge structure to prevent the ultraviolet sensor 2 from directly contacting the ground and thus protecting the ultraviolet sensor 2. The first protective plane 102 and the second protective plane 103 are installed in parallel planes.

[0073] To ensure the field of view of the ultraviolet sensor 2, the distance between the farthest point of the detection part of the ultraviolet sensor 2 from the mounting plane and the mounting plane is L3, and the relationship among the three is set as L1 > L3 > L2. By limiting the range of L1, L2, and L3, the first protective plane 102 and the second protective plane 103 can both protect the ultraviolet sensor 2 from direct impact when the flame detection device falls, and also avoid excessively affecting the field of view of the ultraviolet sensor 2.

[0074] Specifically, the difference between L2 and L3 ranges from 0.5mm to 2mm, and the difference between L1 and L3 ranges from 3.5mm to 4mm. The difference between L2 and L3 can be any value from 0.5mm, 0.8mm, 1.3mm, 1.5mm, 2mm, or any value between any two. The difference between L1 and L3 can be any value from 3.5mm, 3.7mm, 4mm, or any value between any two.

[0075] To further broaden one's horizons, such as Figure 2 and Figure 3 As shown, the device housing 1 also has an inclined surface 106 on the acquisition side, which is located between the first protective plane 102 and the detection window 105.

[0076] In one embodiment, such as Figure 11 As shown, the mounting portion 202 of the ultraviolet sensor 2 includes a mounting surface 2021, and a sensing surface 201 is provided inside the ultraviolet sensor 2. The sensing surface 201 is the surface on which the detection component is mounted. Due to the inherent deflection of the ultraviolet sensor 2 during the manufacturing process, the sensing surface 201 and the mounting surface 2021 are set at a first angle A1. Figure 11 This is an end-face view seen along the first direction of the ultraviolet sensor 2, where the first direction is as follows: Figure 4 and Figure 7As shown, the sensing surface 201 is not parallel to the mounting surface 2021. The sensing surface 201 is deflected at a certain angle relative to the mounting surface 2021, and the deflection angle is as follows: Figure 11 As shown in angle A1, the first included angle A1 is 21°±5°, that is, the included angle between the sensing surface 201 and the mounting surface 2021 is 21°±5°.

[0077] Among them, the mounting surface 101 is provided with a mounting plane, such as Figure 12 As shown, the inner surface of the mounting hole 301 is set at a second angle A2 with the mounting plane, and the value of the second angle A2 is within the value range of the first angle A1. By setting the second angle A2, the sensing surface 201 of the ultraviolet sensor 2 faces the collecting surface side of the device housing 1, along as shown... Figure 7 In the first direction shown, the long side of the end face of the mounting hole 301 is set at a second included angle A2 with the mounting plane. This is understandable, as... Figure 13 As shown, the first included angle A1 and the second included angle A2 have opposite directions of rotation. By setting the long side of the end face of the mounting hole 301 with the mounting plane at the second included angle A2, the manufacturing deviation of the sensor sensing surface 201 itself is offset, and the sensor sensing surface 201 is corrected to the maximum extent to be parallel to the detection window 105, so as to ensure the field of view of the window position of the ultraviolet sensor 2.

[0078] In one possible embodiment of this application, the range of the first included angle A1 is 14°-28°, and the range of the second included angle A2 is 15°-22°. The specific values ​​of the first included angle A1 and the second included angle A2 are selected by those skilled in the art according to actual needs.

[0079] Specifically, the detection angle range of the ultraviolet sensor 2 is ±60° ±10°. For example... Figure 9 The diagram shows the field of view of the ultraviolet sensor 2 when its detection angle is ±60°. Figure 9 The double-dotted area in the text. For example... Figure 10 As shown, the original detection field of view of the ultraviolet sensor 2 is 120°. When an obstacle 7 is placed within the sensor's field of view, the detection field of view of the ultraviolet sensor 2 is partially blocked by the obstacle 7, such as... Figure 10 As shown, area A1 is the blind spot formed by obstacle 7, and area A2 is the effective field of view at this time. In this embodiment, the boundary between the blind spot and the effective field of view is shown by the thick solid line in the figure.

[0080] To facilitate the detection of flames within the blind zone of the ultraviolet sensor 2, a reflector 8 can be provided. The reflector 8 is positioned opposite the detection section of the ultraviolet sensor 2, and a predetermined distance is set between the reflector 8 and the detection section of the ultraviolet sensor 2. The specific distance value can be determined by those skilled in the art based on actual needs. In one embodiment, the reflector 8 can be a mirrored aluminum sheet, such as... Figure 14 As shown, the mirrored aluminum sheet can reflect ultraviolet rays in the flame within the blind zone of the ultraviolet sensor 2 and shield excess light interference, thereby achieving the purpose of monitoring the flame condition within the blind zone.

[0081] This invention relates to a flame detection device that utilizes a flexible protective sleeve 3 to enclose the mounting portion 202 of the ultraviolet sensor 2, and incorporates a shock-absorbing structure on the sleeve 3 to address the issue of sensor failure due to drops. By adjusting the angle between the mounting hole 301 and the mounting plane of the ultraviolet sensor 2, the device compensates for the angular deflection error of the sensing surface 201 caused during sensor manufacturing, thus mitigating the sensor's viewing angle. Furthermore, by using a reflector 8 to reflect ultraviolet light in the blind zone, the device addresses the problem of sensors being unable to collect data in blind areas, thereby expanding the sensor's detection range. Finally, the device incorporates a self-testing lamp 4, enabling it to perform a self-test, preventing detection accidents caused by sensor damage without the user's knowledge.

[0082] This utility model also provides a fire extinguishing device, including a gas injection device and the aforementioned flame detection device. The gas injection device and the flame detection device are electrically connected. The flame detection device is used to detect flames. When a flame is detected, the flame detection device sends an electrical signal to the gas injection device to execute fire extinguishing. The gas injection device injects fire extinguishing gas based on the electrical signal to execute fire extinguishing.

[0083] This utility model also provides a processing device, including the aforementioned flame detection device. The processing device includes a processing head and a processing platform. The processing head is movably disposed above the processing platform for processing a workpiece placed on the processing platform. The flame detection device is disposed opposite to the processing platform for detecting the flame on the processing platform. The processing device can be a laser cutting device, a laser welding device, etc.

[0084] In one possible embodiment, the processing equipment is a laser device. A flame detection device and a gas injection device are electrically connected to each other on the laser device. The flame detection device is fixed to a housing inside the laser device, with the acquisition surface of the housing facing the processing platform. The gas injection device is connected to the processing platform. When the flame detection device detects a fire, it sends an electrical signal to the gas injection device, which then sprays extinguishing gas towards the processing platform. The extinguishing gas can be CO2, perfluorohexanone, or other gases used for fire extinguishing. In another possible embodiment, the processing equipment is equipped with the flame detection device described in the above embodiments. The flame detection device is positioned opposite the processing platform. When the flame detection device detects a fire, the processing equipment issues a warning signal via an alarm device, which may provide voice and / or light alerts.

[0085] In the description of this solution, it should be understood that the terms "first" and "second" are used 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. In the description of this solution, "multiple" means two or more, unless otherwise explicitly specified.

[0086] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0087] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flame detection device, characterized in that, include: Device casing; A flexible protective sleeve is installed inside the outer shell of the device, and the flexible protective sleeve has mounting holes; An ultraviolet sensor is installed inside the housing of the device. The ultraviolet sensor includes a mounting part, which is installed inside the mounting hole. The flexible protective sleeve also has a buffer hole independent of the mounting hole.

2. The flame detection device according to claim 1, characterized in that, The mounting part is interference-fitted with the mounting hole to be fixed inside the mounting hole; Alternatively, a fixing element is provided in the mounting hole, and the mounting part is fixed in the mounting hole by the fixing element.

3. The flame detection device according to claim 1, characterized in that, The flexible protective sleeve includes a first side and a second side arranged opposite to each other. The device housing includes a mounting surface side and a collection surface side. The first side abuts against the inner wall of the collection surface side of the device housing, and the second side abuts against the inner wall of the mounting surface side of the device housing. The buffer hole is disposed between the first side of the flexible protective sleeve and the mounting hole, and / or, the buffer hole is disposed between the second side of the flexible protective sleeve and the mounting hole.

4. The flame detection device according to claim 3, characterized in that, The buffer hole extends in a direction parallel to the centerline of the mounting hole, and the buffer hole extends through the first surface or the second surface. The buffer hole includes a first buffer hole and a second buffer hole. At least two first buffer holes are provided between the first side of the flexible protective sleeve and the mounting hole, and at least two second buffer holes are provided between the second side of the flexible protective sleeve and the mounting hole.

5. The flame detection device according to claim 4, characterized in that, Both the first surface and the second surface are provided with a first buffer groove. The first buffer groove on the first surface is located between two adjacent first buffer holes, and the first buffer groove on the second surface is located between two adjacent second buffer holes. And / or, the first surface and the second surface are connected by a third surface and a fourth surface that are arranged opposite to each other, and a second buffer groove is provided on both the third surface and the fourth surface, the second buffer groove being located between the first buffer hole and the second buffer hole.

6. The flame detection device according to claim 3, characterized in that, The device housing has a receiving cavity for accommodating the flexible protective sleeve and the ultraviolet sensor. The receiving surface of the device housing has a detection window communicating with the receiving cavity. The ultraviolet sensor includes a detection part, which is exposed on the receiving surface of the device housing through the detection window.

7. The flame detection device according to claim 6, characterized in that, It also includes a control motherboard located within the receiving cavity and electrically connected to the ultraviolet sensor. The control motherboard includes a component surface and a detection surface disposed opposite to each other. The detection surface is disposed facing the ultraviolet sensor. The component surface of the control motherboard is used to mount electronic components. A self-test lamp electrically connected to the electronic components is disposed on the detection surface. The self-test lamp is located between the detection surface and the ultraviolet sensor and is disposed opposite to the detection part of the ultraviolet sensor. The self-test lamp is used to emit self-test light to the detection part of the ultraviolet sensor.

8. The flame detection device according to claim 6, characterized in that, The device housing has a first protective plane and a second protective plane respectively disposed at both ends of the detection part of the ultraviolet sensor on the sampling surface side, and a mounting plane is provided on the mounting surface side. The distance between the first protective plane and the mounting plane is L1, and the distance between the second protective plane and the mounting plane is L2, where L1 > L2. The first protective plane and the second protective plane are arranged parallel to the mounting plane.

9. The flame detection device according to claim 8, characterized in that, The distance between the detection part of the ultraviolet sensor and the mounting plane at its farthest point is L3, where L1 > L3 > L2, the difference between L2 and L3 is 0.5mm-2mm, and the difference between L1 and L3 is 3.5mm-4mm. And / or, the acquisition surface side of the device housing is further provided with an inclined surface, which is located between the first protective plane and the detection window.

10. The flame detection device according to claim 3, characterized in that, The mounting part includes a mounting surface, and the ultraviolet sensor has a sensing surface inside, which is set at a first angle with the mounting surface. The mounting surface is provided with a mounting plane, and the inner surface of the mounting hole is set at a second angle with the mounting plane, the value of the second angle being within the value range of the first angle.

11. A fire extinguishing device, characterized in that, The device includes a gas injection device and a flame detection device as described in any one of claims 1 to 10, wherein the gas injection device and the flame detection device are electrically connected, the flame detection device is used to detect a flame, and when a flame is detected, the flame detection device sends an electrical signal to the gas injection device to perform fire extinguishing, and the gas injection device injects fire extinguishing gas based on the fire extinguishing electrical signal.

12. A processing equipment, characterized in that, The processing equipment includes a flame detection device as described in any one of claims 1 to 10, wherein the processing equipment includes a processing head and a processing platform, the processing head is movably disposed above the processing platform for processing a workpiece placed on the processing platform, and the flame detection device is disposed opposite to the processing platform for detecting flames on the processing platform.

Images