Infrared thermal imaging detector for SF6 gas detection

Abstract

The invention belongs to the technical field of gas detection, and discloses an infrared thermal imaging detector for SF6 gas detection. The infrared thermal imaging detector for SF6 gas detection comprises a detection body and a protection mechanism, a display screen is arranged at one end of the detection body, a detection probe is arranged at the other end of the detection body, and a handheld part is arranged at the bottom of the detection body; the protection mechanism comprises a control button, a driving assembly, a first protection assembly and a second protection assembly, the control button is arranged on the side face of the handheld part, the driving assembly is arranged in the detection body and electrically connected with the control button, and the first protection assembly and the second protection assembly are in transmission connection with the driving assembly. The driving assembly can drive the first protection assembly and the second protection assembly to synchronously protrude out of the detection body, so that the first protection assembly shields the display screen, the second protection assembly shields the detection probe, the detection probe and the display screen are protected at the same time, and the safety and durability of the infrared thermal imaging detector for SF6 gas detection are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to an infrared thermal imaging detector for SF6 gas detection. Background Art

[0002] SF6 gas is a gas insulation material commonly used in the power industry. Due to its insulation properties and arc extinguishing ability, it is used as an insulating medium for high-voltage switchgear, circuit breakers, transformers and other equipment. However, SF6 will decompose and produce toxic and harmful gases when exposed to high temperature and electric arc, which will affect human health and equipment operation. In addition, the leakage of SF6 gas will also cause the insulation performance of the equipment to deteriorate, which may cause equipment damage or even cause accidents in severe cases. At present, the SF6 online monitoring system has been widely used in various links of the power industry, such as substations, power lines, switchgear, etc. The use of infrared thermal imaging detectors can realize SF6 online monitoring imaging, online monitoring of leakage, and real-time monitoring of SF6 gas concentration. Leakages can be detected in time and corresponding measures can be taken to ensure the safe and stable operation of power equipment.

[0003] However, in the prior art, when holding the infrared thermal imaging detector for detection, the detector may fall due to slipping of the hand or not holding the detector, which may easily cause the detection probe or display screen to be hit and damaged, making it inconvenient for subsequent use of the detector and affecting the detection effect of the detector.

[0004] Therefore, there is an urgent need for an infrared thermal imaging detector for SF6 gas detection to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an infrared thermal imaging detector for SF6 gas detection, which can protect the detection probe and the display screen at the same time when the infrared thermal imaging detector for SF6 gas detection accidentally falls, thereby improving the safety and durability of the infrared thermal imaging detector for SF6 gas detection.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Infrared thermal imaging detector for SF6 gas detection, including:

[0008] A detection body, wherein a display screen is provided at one end of the detection body, a detection probe is provided at the other end, and a hand-held part is provided at the bottom of the detection body;

[0009] The protection mechanism includes a control button, a driving component, a first protection component and a second protection component. The control button is arranged on the side of the handheld part, the driving component is arranged in the detection body and is electrically connected to the control button, the first protection component and the second protection component are respectively connected to the driving component in a transmission manner, and the driving component can drive the first protection component and the second protection component to synchronously protrude from the detection body, so that the first protection component covers the display screen and the second protection component covers the detection probe.

[0010] Optionally, the first protection component includes two first protection plates, the detection body is provided with two first slide grooves, the two first slide grooves are respectively located on both sides of the display screen and are connected to the outside, and each of the first slide grooves is provided with one first protection plate;

[0011] The second protection assembly includes two second protection plates, the detection body is provided with two second slide grooves, the two second slide grooves are respectively located on both sides of the detection probe and are connected to the outside, and each second slide groove is provided with a second protection plate;

[0012] The driving assembly includes a mounting plate and an electric push rod, wherein the mounting plate is arranged inside the detection body, and the electric push rod is arranged on the mounting plate, and the output end of the electric push rod can synchronously drive the two first protective plates and the two second protective plates to move to the outside of the detection body.

[0013] Optionally, the drive assembly includes a first transmission assembly and a second transmission assembly, the first protective assembly also includes a first shock-absorbing pad, the second protective assembly also includes a second shock-absorbing pad, one end of the first transmission assembly is transmission-connected to the first protective plate, and the other end is rolled up with the first shock-absorbing pad, one end of the second transmission assembly is transmission-connected to the second protective plate, and the other end is rolled up with the second shock-absorbing pad.

[0014] Optionally, the first protective plate and the second protective plate are respectively provided with a first movable groove and a second movable groove, a first fixed groove is opened in the middle of the first movable groove, and a second fixed groove is opened in the middle of the second movable groove, a first limiting structure is provided in the first fixed groove, and a second limiting structure is provided in the second fixed groove, the first limiting structure can abut against the first shock-absorbing pad, and the second limiting structure can abut against the second shock-absorbing pad.

[0015] Optionally, the first limiting structure includes a telescopic rod, one end of the telescopic rod is installed in the first fixed groove, the other end of the telescopic rod is fixedly connected to a limiting plate, and a connecting spring is sleeved on the telescopic rod, one end of the connecting spring abuts against the bottom wall of the first fixed groove, and the other end abuts against the limiting plate.

[0016] Optionally, a first movable groove is provided at one end of the detection body close to the display screen, a second movable groove is provided at one end of the detection body close to the detection probe, a first limiting block is movably provided in the first movable groove, a first limiting opening is provided on the first limiting block, a second limiting block is provided in the second movable groove, and a second limiting opening is provided on the second limiting block;

[0017] The first protective plate can drive the first limiting block to protrude from the detection body, and the first shock-absorbing pad can pass through the first limiting opening. The second protective plate can drive the second limiting block to protrude from the detection body, and the second shock-absorbing pad can pass through the second limiting opening.

[0018] Optionally, a third movable groove is provided on the second protective plate, a first pushing block is fixedly connected to the inner wall of the first movable groove, the first pushing block can push the first limiting block, and a second pushing block is fixedly connected to the inner wall of the third movable groove, the second pushing block can push the second limiting block.

[0019] Optionally, a hand strap is provided on the side of the hand-held portion, and the control button is located between the hand strap and the hand-held portion.

[0020] Optionally, a buckle plate is further provided on the handheld part, the buckle plate is electrically connected to the detection body, and the buckle plate is configured to open or close the detection body.

[0021] Optionally, a lens cover is provided on the detection probe, and the lens cover is hinged to the detection body.

[0022] Beneficial effects:

[0023] The infrared thermal imaging detector for SF6 gas detection provided by the present invention comprises a detection body and a protection mechanism, wherein a display screen is provided at one end of the detection body, a detection probe is provided at the other end, and a hand-held portion is provided at the bottom of the detection body; the protection mechanism comprises a control button, a drive component, a first protection component and a second protection component, wherein the control button is arranged on the side of the hand-held portion, the drive component is arranged in the detection body and is electrically connected to the control button, the first protection component and the second protection component are respectively connected to the drive component in a transmission manner, when a user holds the infrared thermal imaging detector to perform SF6 gas detection, the control button is pressed, and the first protection component and the second protection component are both located in the detection body, when the infrared thermal imaging detector accidentally falls from the hand, the control button is in an unpressed state, at which time the drive component drives the first protection component and the second protection component to synchronously protrude from the detection body, so that the first protection component blocks the display screen, and the second protection component blocks the detection probe, thereby protecting the detection probe and the display screen at the same time, thereby improving the safety and durability of the infrared thermal imaging detector for SF6 gas detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of an infrared thermal imaging detector for SF6 gas detection provided by the present invention at a first viewing angle;

[0025] Figure 2 It is an exploded schematic diagram of the detection body provided by the present invention;

[0026] Figure 3 is a schematic structural diagram of a driving assembly provided by the present invention at a first viewing angle;

[0027] Figure 4 is a schematic structural diagram of the driving assembly provided by the present invention at a second viewing angle;

[0028] Figure 5 is a structural schematic diagram of a first transmission assembly provided by the present invention;

[0029] Figure 6 is a first exploded view of the first protective plate and the second protective plate provided by the present invention;

[0030] Figure 7 is a schematic structural diagram of the detection body provided by the present invention at a first viewing angle;

[0031] Figure 8 is a schematic structural diagram of the detection body provided by the present invention at a second viewing angle;

[0032] Fig. 9 is a second exploded view of the first protective plate and the second protective plate provided by the present invention;

[0033] Fig.10 It is a schematic structural diagram of the infrared thermal imaging detector for SF6 gas detection provided by the present invention at a second viewing angle.

[0034] In the figure:

[0035] 100, detection body; 110, display screen; 120, detection probe; 130, handheld part; 140, keypad area; 150, first movable slot; 151, first window; 160, second movable slot; 161, second window; 170, handheld strap; 180, lens cover; 190, buckle plate;

[0036] 200, protection mechanism; 210, control button; 220, drive assembly; 221, mounting plate; 222, electric push rod; 223, first rack; 224, rotating gear; 225, second rack; 226, first transmission assembly; 2261, third rack; 2262, first gear; 2263, connecting rod; 2264, first transmission wheel; 2265, belt; 2266, second transmission wheel; 2267, rotating shaft; 2268, fixing plate; 227, second transmission assembly; 231, first protection plate; 2311, first moving groove; 231 2. First limiting structure; 23121. Telescopic rod; 23122. Connecting spring; 23123. Limiting plate; 2313. First pushing block; 232. First shock-absorbing pad; 233. First fixed cover; 241. Second protective plate; 2411. Second movable groove; 2412. Second limiting structure; 2413. Third movable groove; 24131. Second pushing block; 242. Second fixed cover; 250. First limiting block; 251. First limiting opening; 252. First protrusion; 260. Second limiting block; 261. Second limiting opening; 262. Second protrusion. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0041] This embodiment provides an infrared thermal imaging detector for SF6 gas detection, such as Figure 1-Figure 10 As shown, the infrared thermal imaging detector for SF6 gas detection includes a detection body 100 and a protection mechanism 200. A display screen 110 is provided at one end of the detection body 100, and a detection probe 120 is provided at the other end. A hand-held portion 130 is provided at the bottom of the detection body 100. The protection mechanism 200 includes a control button 210, a drive component 220, a first protection component and a second protection component. The control button 210 is arranged on the side of the hand-held portion 130, the drive component 220 is arranged in the detection body 100 and is electrically connected to the control button 210, and the first protection component and the second protection component are respectively connected to the drive component 220 in transmission. When a user holds the infrared thermal imaging detector for S During F6 gas detection, the control button 210 is pressed, and the first protection component and the second protection component are both located inside the detection body 100, which does not affect the normal operation of the display screen 110 and the detection probe 120; when the infrared thermal imaging detector accidentally falls from the hand, the control button 210 is in an unpressed state, and at this time the driving component 220 drives the first protection component and the second protection component to synchronously protrude out of the detection body 100, so that the first protection component blocks the display screen 110, and the second protection component blocks the detection probe 120, thereby protecting the detection probe 120 and the display screen 110 at the same time, thereby improving the safety and durability of the infrared thermal imaging detector used for SF6 gas detection.

[0042] Alternatively, if Figure 2-Figure 3As shown, the first protection component includes two first protection plates 231, and the detection body 100 is provided with two first slide grooves, which are respectively located on both sides of the display screen 110 and communicated with the outside world, and each first slide groove is provided with a first protection plate 231; the second protection component includes two second protection plates 241, and the detection body 100 is provided with two second slide grooves, which are respectively located on both sides of the detection probe 120 and communicated with the outside world, and each second slide groove is provided with a second protection plate 241; the driving component 220 includes a mounting plate 221, an electric push rod 222, a first rack 223, a rotating gear 224 and a second rack 225, the mounting plate 221 is arranged in the detection body 100, the electric push rod 222 is arranged on the mounting plate 221, one end of the electric push rod 222 is fixedly connected with the first protection plate 231, and the first protection plate 2 A first rack 223 is fixedly connected to one side of the mounting plate 221 31, a rotating gear 224 is meshed at the bottom of the first rack 223, a second rack 225 is meshed at the bottom of the rotating gear 224, and one end of the second rack 225 is fixedly connected to the second protective plate 241. Therefore, when the electric push rod 222 drives the two first protective plates 231 to move outside the detection body 100, the power of the first rack 223, the rotating gear 224 and the second rack 225 is transmitted, so that the two second protective plates 241 move outward synchronously with the two first protective plates 231 until the two first protective plates 231 protrude from the two sides of the display screen 110 respectively, and the two second protective plates 241 protrude from the two sides of the detection probe 120 respectively, so as to prevent the display screen 110 and the detection probe 120 from being hit, thereby realizing synchronous protection of the display screen 110 and the detection probe 120.

[0043] Alternatively, if Figure 3-Figure 4 As shown, the driving assembly 220 includes a first transmission assembly 226 and a second transmission assembly 227, the first protection assembly also includes a first shock-absorbing pad 232, and the second protection assembly also includes a second shock-absorbing pad. One end of the first transmission assembly 226 is connected to the first protection plate 231 for transmission, and the other end is rolled up with the first shock-absorbing pad 232. One end of the second transmission assembly 227 is connected to the second protection plate 241 for transmission, and the other end is rolled up with the second shock-absorbing pad. The setting of the first transmission assembly 226 can ensure that the first shock-absorbing pad 232 is unfolded and covered on the display screen 110 while the first protection plate 231 moves outward, thereby further ensuring the safety of the display screen 110; the setting of the second transmission assembly 227 can ensure that the second shock-absorbing pad is unfolded and covered on the detection probe 120 while the second protection plate 241 moves outward, thereby further ensuring the safety of the detection probe 120.

[0044] Specifically, Figure 5As shown, the first transmission assembly 226 includes a third rack 2261, a first gear 2262, a connecting rod 2263, a first transmission wheel 2264, a belt 2265, a second transmission wheel 2266 and a rotating shaft 2267. The third rack 2261 is arranged on the top of the first protective plate 231. The first gear 2262 is meshed on the third rack 2261. The first gear 2262 is coaxially fixed with the connecting rod 2263. Both ends of the connecting rod 2263 are respectively rotatably connected to the detection body 100. One end of the connecting rod 2263 is fixedly connected to the first transmission wheel 2264. The outer surface of the first transmission wheel 2264 is transmission-connected with a belt 2265, and the belt 2265 is away from the first transmission wheel One end of 2264 is transmission connected to the second transmission wheel 2266, the second transmission wheel 2266 is coaxially fixed with the rotating shaft 2267, and the two ends of the rotating shaft 2267 are respectively rotatably connected to the detection body 100, and two fixed plates 2268 are arranged on the rotating shaft 2267, and the rotating shaft 2267 between the two fixed plates 2268 is wound with the first shock-absorbing pad 232; when the first protective plate 231 moves outward, the first protective plate 231 transmits power to the rotating shaft 2267 through the third rack 2261, the first gear 2262, the connecting rod 2263, the first transmission wheel 2264, the belt 2265 and the second transmission wheel 2266, thereby realizing stable and efficient power transmission. It can be understood that when the first protective plate 231 moves toward the outside of the detection body 100, the rotating shaft 2267 unfolds the rolled-up first shock-absorbing pad 232, so that the first protective plate 231 and the first shock-absorbing pad 232 can simultaneously protect the display screen 110; when the first protective plate 231 moves toward the inside of the detection body 100, the rotating shaft 2267 rolls up the first shock-absorbing pad 232 on the rotating shaft 2267, so that the detection body 100 can be used normally. In this embodiment, the second transmission assembly 227 has the same structure and operation principle as the first transmission assembly 226, and will not be described in detail.

[0045] In this embodiment, a detection body 100 is provided with a button area 140 on one side of the display screen 110. The button area 140 is located below the display screen 110. The button area 140 is provided with a plurality of buttons to facilitate the adjustment of the detection body 100 and improve the convenience of operation.

[0046] Alternatively, if Figure 6 As shown, a first movable groove 2311 is provided on the first protective plate 231, and the first movable groove 2311 extends along the moving direction of the first movable plate. A first fixed groove is opened in the middle of the first movable groove 2311, and a first limiting structure 2312 is provided in the first fixed groove. When the two first protective plates 231 move out of the detection body 100, the two opposite first limiting structures 2312 respectively abut against the two sides of the first shock-absorbing pad 232, and further fix the first shock-absorbing pad 232 to avoid the first shock-absorbing pad 232 from shifting, thereby ensuring the protection effect of the first shock-absorbing pad 232 on the display screen 110 and the key area 140.

[0047] Alternatively, if Figure 6 As shown, a second movable groove 2411 is provided on the second protective plate 241, and the second movable groove 2411 extends along the moving direction of the second movable plate. A second fixed groove is opened in the middle of the second movable groove 2411, and a second limiting structure 2412 is provided in the second fixed groove. When the two second protective plates 241 extend out of the detection body 100, the two opposite second limiting structures 2412 respectively abut against the two sides of the second shock-absorbing pad, thereby further fixing the second shock-absorbing pad and ensuring the protective effect of the second shock-absorbing pad on the detection probe 120.

[0048] Alternatively, if Figure 6 As shown, the first limiting structure 2312 includes a telescopic rod 23121, one end of the telescopic rod 23121 is fixedly installed with the first fixing groove, the other end of the telescopic rod 23121 is fixedly connected with a limiting plate 23123, and a connecting spring 23122 is sleeved on the telescopic rod 23121, one end of the connecting spring 23122 abuts against the bottom wall of the first fixing groove, and the other end abuts against the limiting plate 23123. When the first protective plate 231 moves out of the detection body 100, the limiting plate 23123 abuts against the side of the first shock absorbing pad 232 by means of the elastic force of the connecting spring 23122, so as to prevent the first shock absorbing pad 232 from deflecting and improve the protective effect of the first shock absorbing pad 232 on the display screen 110. In this embodiment, the second limiting structure 2412 has the same structure and operating principle as the first limiting structure 2312, and the specific structure and operating principle of the second limiting structure 2412 are not repeated.

[0049] Alternatively, if Figure 7-Figure 8 As shown, a first movable groove 150 is provided at one end of the detection body 100 close to the display screen 110, and a second movable groove 160 is provided at one end of the detection body 100 close to the detection probe 120. A first limiting block 250 is movably arranged in the first movable groove 150, and a first limiting opening 251 is provided on the first limiting block 250. A second limiting block 260 is provided in the second movable groove 160, and a second limiting opening 261 is provided on the second limiting block 260; the first protective plate 231 can drive the first limiting block 250 to protrude from the detection body 100, and the first shock-absorbing pad 232 can pass through the first limiting opening 251 to avoid wrinkles at the bottom of the first shock-absorbing pad 232, thereby ensuring the flatness of the first shock-absorbing pad 232; the second protective plate 241 can drive the second limiting block 260 to protrude from the detection body 100, and the second shock-absorbing pad can pass through the second limiting opening 261 to avoid wrinkles at the bottom of the second shock-absorbing pad, thereby ensuring the flatness of the second shock-absorbing pad. This embodiment effectively improves the flatness of the first shock-absorbing pad 232 and the second shock-absorbing pad by setting the first limiting block 250 and the second limiting block 260, avoids the reduction of shock-absorbing performance due to the wrinkles of the first shock-absorbing pad 232 and the second shock-absorbing pad, and ensures the safety and durability of the infrared thermal imaging detector for SF6 gas detection.

[0050] Alternatively, if Figure 6-Figure 9 As shown, the second protective plate 241 is provided with a third movable groove 2413, the inner wall of the first movable groove 2311 is fixedly connected with a first pushing block 2313, the first pushing block 2313 can push the first limiting block 250, the inner wall of the third movable groove 2413 is fixedly connected with a second pushing block 24131, the second pushing block 24131 can push the second limiting block 260, thereby facilitating the first limiting block 250 to move outward with the first protective plate 231, and the second limiting block 260 to move outward with the second protective plate 241.

[0051] Specifically, the first limiting block 250 is provided with a first protrusion 252 at both ends, and the first protrusion 252 can move in the first windows 151 at both ends of the first movable groove 150, and the first pushing block 2313 can abut against the first protrusion 252, thereby pushing the first limiting block 250 out of the detection body 100; the second limiting block 260 is provided with a second protrusion 262 at both ends, and the second protrusion 262 can move in the second windows 161 at both ends of the second movable groove 160, and the second pushing block 24131 can abut against the second protrusion 262, thereby pushing the second limiting block 260 out of the detection body 100.

[0052] Alternatively, if Figure 1 and Fig.10 As shown, a hand strap 170 is provided on the side of the hand-held portion 130, and a control button 210 is located between the hand strap 170 and the hand-held portion 130; when the operator holds the hand-held portion 130, the operator's hand passes through the gap between the hand strap 170 and the hand-held portion 130 and presses the control button 210, and the first protective component and the second protective component are both located in the detection body 100, which does not affect the normal use of the detection body 100.

[0053] Optionally, a lens cover 180 is provided on the detection probe 120, and the lens cover 180 is hinged to the detection body 100, so that when the infrared thermal imaging detector for SF6 gas detection is not used, the lens cover 180 can be covered on the detection probe 120 to further improve the protection effect of the detection probe 120.

[0054] In this embodiment, a buckle plate 190 is further provided on the handheld portion 130, and the buckle plate 190 is located on the side of the handheld portion 130 away from the display screen 110. The buckle plate 190 is electrically connected to the detection body 100 and can start or shut down the detection body 100. Specifically, a handheld portion 130 is provided at the bottom of the detection body 100, a hand strap 170 is fixedly installed on one side of the handheld portion 130, a control button 210 is located between the hand strap 170 and the handheld portion 130, the buckle plate 190 is located on the side of the handheld portion 130 away from the display screen 110, a first fixed cover 233 is provided at the front end of the top of the detection body 100, and the first shock-absorbing pad 232 is rolled up in the first fixed cover 233, a second fixed cover 242 is provided at the rear end of the top of the detection body 100, and the second shock-absorbing pad is rolled up in the second fixed cover 242, and the top end of the lens cover 180 is hinged at the rear end of the top of the detection body 100, so that the lens cover 180 can be flipped to open the detection probe 120.

[0055] like Figure 1-Figure 10 As shown, the working principle of the infrared thermal imaging detector for SF6 gas detection provided in this embodiment is:

[0056] When in use, when the operator's hand passes through the hand strap 170 to hold the hand-held part 130 and presses the control button 210, the first protective plate 231 and the second protective plate 241 are respectively located inside the first slide groove and the second slide groove, and the lens cover 180 is flipped to expose the detection probe 120. The detection is performed by aligning the detection probe 120 with the place to be detected, and the buckle plate 190 is pressed when the detection is completed; when the infrared thermal imaging detector accidentally slips from the hand, the control button 210 is no longer pressed, and the control button 210 causes the electric push rod 222 to push the first protective plate 231 to move to the outside of the first slide groove. When the first protective plate 231 moves, it drives the first rack 223 to move along the inner wall of the first slide groove, so that the bottom meshing rotating gear 224 rotates, moves the second rack 225 along the inner wall of the second slide groove and pushes the second protective plate 241 to move in the opposite direction of the first protective plate 231, that is, the second protective plate 241 moves to the outside of the second slide groove;

[0057] When the first protective plate 231 and the second protective plate 241 move at the same time, the first protective plate 231 drives the third rack 2261 on the top to move, so that the first gear 2262 meshing at the top drives the connecting rod 2263 to rotate, so that the first transmission wheel 2264 rotates, and under the transmission action of the belt 2265, the second transmission wheel 2266 drives the rotating shaft 2267 inside the first fixed cover 233 to rotate, so that the first shock-absorbing pad 232 is unfolded and moved downward. The movement principle of the second shock-absorbing pad is the same as that of the first shock-absorbing pad 232, which will not be described in detail here. When the first protective plate 231 and the second protective plate 241 move to the outside of the first slide slot and the second slide slot respectively, the first shock-absorbing pad 232 covers the display screen 110 and the key area 140, and the second shock-absorbing pad covers the detection probe 120, so as to reduce shock and protect the display screen 110 and the detection probe 120.

[0058] Furthermore, when the first protective plate 231 and the second protective plate 241 move toward the outside of the first slide groove and the second slide groove respectively, the first protective plate 231 drives the first pushing block 2313 in the first movable groove 2311 to move, and the first pushing block 2313 pushes the first protrusion 252 to move in the first window 151, thereby pushing the first limiting block 250 out of the detection body 100. When the first limiting block 250 moves to the outside of the first movable groove 150, the two first protective plates 231 move to both sides of the display screen 110 respectively, and the first shock-absorbing pad 232 passes through the first limiting opening 251 on the first limiting block 250 and covers the display screen 110 and the button area 140. The first limiting block 250 can make the first shock-absorbing pad 232 more flat, thereby ensuring the shock-absorbing and protective effects of the first shock-absorbing pad 232. The second protective plate 241 drives the second pushing block 24131 inside the third movable groove 2413 to move, and the second pushing block 24131 pushes the second protrusion 262 to move inside the second window 161. The second protrusion 262 drives the second limiting block 260 to move outside the second movable groove 160. When the second limiting block 260 moves to the outside of the second movable groove 160, the two second protective plates 241 move to both sides of the detection probe 120 respectively, and the second shock-absorbing pad passes through the limiting opening cover on the second limiting block 260 and is arranged on the detection probe 120. The setting of the second limiting block 260 can make the second shock-absorbing pad flat, thereby ensuring the shock-absorbing and protective effects of the second shock-absorbing pad.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Infrared thermal imaging detector for SF6 gas detection, characterized in that: include: A detection body (100), wherein a display screen (110) is provided at one end of the detection body (100), a detection probe (120) is provided at the other end, and a hand-held portion (130) is provided at the bottom of the detection body (100); The protection mechanism (200) comprises a control button (210), a driving component (220), a first protection component and a second protection component, wherein the control button (210) is arranged on the side of the handheld part (130), the driving component (220) is arranged in the detection body (100) and is electrically connected to the control button (210), the first protection component and the second protection component are respectively connected to the driving component (220) in a transmission manner, and the driving component (220) can drive the first protection component and the second protection component to synchronously protrude from the detection body (100), so that the first protection component covers the display screen (110) and the second protection component covers the detection probe (120).

2. The infrared thermal imaging detector for SF6 gas detection according to claim 1, characterized in that: The first protection component comprises two first protection plates (231), the detection body (100) is provided with two first slide grooves, the two first slide grooves are respectively located on two sides of the display screen (110) and are connected to the outside, and each of the first slide grooves is provided with a first protection plate (231); The second protection component comprises two second protection plates (241), the detection body (100) is provided with two second slide grooves, the two second slide grooves are respectively located on both sides of the detection probe (120) and are connected to the outside, and each second slide groove is provided with a second protection plate (241); The driving assembly (220) comprises a mounting plate (221) and an electric push rod (222); the mounting plate (221) is arranged inside the detection body (100); the electric push rod (222) is arranged on the mounting plate (221); and the output end of the electric push rod (222) can synchronously drive the two first protective plates (231) and the two second protective plates (241) to move toward the outside of the detection body (100).

3. The infrared thermal imaging detector for SF6 gas detection according to claim 2, characterized in that: The driving assembly (220) includes a first transmission assembly (226) and a second transmission assembly (227); the first protection assembly also includes a first shock-absorbing pad (232); the second protection assembly also includes a second shock-absorbing pad; one end of the first transmission assembly (226) is transmission-connected to the first protection plate (231), and the other end is rolled up with the first shock-absorbing pad (232); one end of the second transmission assembly (227) is transmission-connected to the second protection plate (241), and the other end is rolled up with the second shock-absorbing pad.

4. The infrared thermal imaging detector for SF6 gas detection according to claim 3, characterized in that: The first protective plate (231) and the second protective plate (241) are respectively provided with a first movable groove (2311) and a second movable groove (2411); a first fixed groove is opened in the middle of the first movable groove (2311); a second fixed groove is opened in the middle of the second movable groove (2411); a first limiting structure (2312) is provided in the first fixed groove; a second limiting structure (2412) is provided in the second fixed groove; the first limiting structure (2312) can abut against the first shock-absorbing pad (232); and the second limiting structure (2412) can abut against the second shock-absorbing pad.

5. The infrared thermal imaging detector for SF6 gas detection according to claim 4, characterized in that: The first limiting structure (2312) includes a telescopic rod (23121), one end of the telescopic rod (23121) is installed in the first fixed groove, the other end of the telescopic rod (23121) is fixedly connected with a limiting plate (23123), and a connecting spring (23122) is sleeved on the telescopic rod (23121), one end of the connecting spring (23122) abuts against the bottom wall of the first fixed groove, and the other end abuts against the limiting plate (23123).

6. The infrared thermal imaging detector for SF6 gas detection according to claim 4, characterized in that: A first movable groove (150) is provided at one end of the detection body (100) close to the display screen (110), and a second movable groove (160) is provided at one end of the detection body (100) close to the detection probe (120); a first limiting block (250) is movably arranged in the first movable groove (150), and a first limiting opening (251) is provided on the first limiting block (250); a second limiting block (260) is provided in the second movable groove (160), and a second limiting opening (261) is provided on the second limiting block (260); The first protective plate (231) can drive the first limiting block (250) to protrude from the detection body (100), and the first shock-absorbing pad (232) can pass through the first limiting opening (251); the second protective plate (241) can drive the second limiting block (260) to protrude from the detection body (100), and the second shock-absorbing pad can pass through the second limiting opening (261).

7. The infrared thermal imaging detector for SF6 gas detection according to claim 6, characterized in that: The second protective plate (241) is provided with a third movable groove (2413), the inner wall of the first movable groove (2311) is fixedly connected with a first pushing block (2313), the first pushing block (2313) can push the first limiting block (250), the inner wall of the third movable groove (2413) is fixedly connected with a second pushing block (24131), the second pushing block (24131) can push the second limiting block (260).

8. The infrared thermal imaging detector for SF6 gas detection according to claim 1, characterized in that: A hand-held belt (170) is provided on the side of the hand-held portion (130), and the control button (210) is located between the hand-held belt (170) and the hand-held portion (130).

9. The infrared thermal imaging detector for SF6 gas detection according to claim 1, characterized in that: The handheld portion (130) is also provided with a buckle plate (190), the buckle plate (190) is electrically connected to the detection body (100), and the buckle plate (190) is configured to open or close the detection body (100).

10. The infrared thermal imaging detector for SF6 gas detection according to claim 1, characterized in that: The detection probe (120) is covered with a lens cover (180), and the lens cover (180) is hinged to the detection body (100).

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