Portable fire early-stage detection device
By designing a portable early fire detection device, the problems of poor adaptability, high cost and cumbersome operation of the cable trench fire detection device in the prior art are solved, and a single-person operation and rapid reset of the cable trench cover is realized, reducing costs and increasing the Security.
Patent Information
- Application Number
- CN202411540583.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-02-11
AI Technical Summary
The existing cable trench fire detection devices are difficult to adapt to different places, the cost is high, and the handheld device is cumbersome to operate, requiring multiple people to cooperate, and it is easy to damage the cable trench cover.
A portable fire early detection device is designed, using a support frame, moving wheel, support plate, cover opening mechanism and detection mechanism, which can be operated by a single person and quickly reset the cable trench cover to avoid damage.
It realizes single-person operation and fast reset of the cable trench cover, reducing the cost of fire detection and improving detection convenience and safety.
Smart Images
Figure CN119418470A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fire detection, and in particular to a portable early fire detection device. Background Art
[0002] Cable trench is an underground structure used to lay and protect power cables, communication cables and other cable facilities. Cable trench fire detection is to prevent and early detect fire accidents caused by cable overheating, short circuit, insulation damage and other reasons. Fires in cable trenches often spread quickly and cause serious losses. Therefore, it is particularly important to implement fire monitoring in cable trenches.
[0003] The existing devices for detecting fire hazards of cables in cable trenches usually set detection devices at intervals along the cable trench to detect the air in the cable trench to detect whether there are excessive carbon monoxide, carbon dioxide and charged pyrolysis reactors inside the cable trench, so as to determine whether there are fire hazards inside the cable trench. However, the existing fixed-point detection devices are difficult to adapt to different cable trench installation locations, and the cable trench is usually large in area, which will lead to a huge increase in the cost of fire detection. When using the existing handheld devices, it is usually necessary for multiple people to work together. First, the heavy cable trench cover needs to be pried open with a crowbar, and then the detection instrument or probe is inserted into the cable trench for detection. The operation is very cumbersome and inconvenient, and the crowbar will damage the cable trench cover, and it is inconvenient to reset the cable trench cover after the detection is completed.
[0004] Therefore, a portable early fire detection device has been developed that can be operated by a single person, can quickly reset the cable trench cover, and can avoid damage to the cable trench cover, thereby improving the convenience and safety of cable trench detection. Summary of the invention
[0005] In order to overcome the shortcomings of the prior art that fixed-point detection devices are high in cost and handheld devices require collaborative operation and are inconvenient to operate, the present invention provides a portable early fire detection device that can be operated by a single person, can quickly reset the cable trench cover, and can avoid damage to the cable trench cover, thereby improving the convenience and safety of cable trench detection.
[0006] The technical solution is: a portable early fire detection device, including a support frame, moving wheels, a support plate, a cover opening mechanism and a detection mechanism. The moving wheels are rotatably connected to the lower left side of the support frame, and the support plate is connected to the lower right side of the support frame. The upper part of the support frame is provided with an opening mechanism for opening the cable trench cover, and the top of the support plate is provided with a detection mechanism for detecting the gas inside the cable trench.
[0007] More preferably, the cover opening mechanism includes an adjusting frame, an anti-slip column, an adjusting frame, a clamping frame, a grabbing plate, a lifting frame, a lifting screw and a limit plate. The upper part of the support frame is threadedly connected to the lifting screw, the bottom of the lifting screw is slidably and rotatably connected to the lifting frame, the left and right sides of the lifting frame are connected to the limit plates, the front and rear parts of the lifting frame are slidably and rotatably connected to the clamping frame, the gripping plates are connected on the sides of the clamping frames away from each other, the gripping plates are rotatably connected to the adjusting frames, the adjusting frames are slidably connected to the adjusting frames, the front and rear parts of the adjusting frame are connected to the anti-slip columns, the anti-slip columns are slidably connected to the adjacent adjusting frames, and the lifting screw is rotated to use the thread to make the lifting screw move up and down on the support frame. The lifting frame is controlled to move and control the movement of the lifting frame. When the lifting frame moves, it will drive the adjusting frame, the clamping frame, the grabbing plate and the adjusting frame to move. When the adjusting frame, the clamping frame and the grabbing plate move downward, the clamping plate is inserted into the gaps on both sides of the cable trench cover, and then the lifting frame is controlled to move upward by the lifting screw. When the lifting frame moves upward, the adjusting frame does not move temporarily under the action of its own weight until the clamping frame drives the grabbing plate to rotate on the adjusting frame, so that the grabbing plates are close to each other to clamp the cable trench cover. After that, the clamping frame cannot rotate due to the size of the cable trench cover, and the lifting screw continues to rotate and move upward, so that the adjusting frame and the clamping frame can be lifted by the lifting frame, and then the cable trench cover can be lifted.
[0008] More preferably, the detection mechanism includes a sampling module, a detection module and a data processing module, the sampling module is connected to the top of the support plate, the detection module is provided on the top of the sampling module, the data processing module is connected to the upper right side of the support frame, the sampling module and the detection module are electrically connected, the detection module and the data processing module are electrically connected, the data processing module can be electrically connected to the background signal receiving module, after the cable trench cover is lifted, the sampling module generates negative pressure to send the air inside the cable trench into the detection module, the detection module detects the gas composition inside the cable trench, determines the content of carbon monoxide, carbon dioxide and charged pyrolysis in the air inside the cable trench, and determines whether the cable is aging and has a fire hazard. After the detection module detects that the content of carbon monoxide, carbon dioxide and charged pyrolysis exceeds the preset value, it will send a check or maintenance signal through the data processing module, which will be received and prompted by the background signal receiving module to contact a special person for cable maintenance or inspection.
[0009] More preferably, a protective mechanism is also included, the protective mechanism includes a rotating seat, a protective column, a support seat, a rotating wheel and a clamping assembly, the front and rear upper sides of the support plate are rotatably connected to the rotating seat, the rotating seat is connected to the protective column, the left side of the protective column is connected to the support seat, the bottom of the support seat is higher than the bottom of the moving wheel, the top of the rotating seat is connected to the rotating wheel, and a plurality of clamping assemblies are provided on the top of the support plate. After the cable trench cover is lifted, the rotation of the rotating seat is controlled by the rotating wheel, and the rotation of the rotating seat drives the protective column and the support seat to rotate, so that the protective columns rotate close to each other and move to under the cable trench cover to prevent the cable trench cover from falling suddenly.
[0010] More preferably, the locking assembly includes a locking rod and a compression spring, a plurality of locking rods are slidably connected to the top of the support plate, and compression springs are connected between the locking rods and the support plate.
[0011] More preferably, a guiding mechanism is also included, which includes a fixed frame, a flip frame, an air guide cover, a torsion spring, a locking piece, a mounting plate, a locking frame and a reset spring. The sampling module is connected to a fixed frame on the left side, and a flip frame is rotatably connected to the lower part of the fixed frame. An air guide cover is connected between the flip frame and the fixed frame. Both front and rear sides of the lower part of the flip frame are connected to the fixed frame with a torsion spring, the front side of the lower part of the flip frame is connected to a locking piece, the front side of the lower part of the sampling module is connected to the mounting plate, and the front of the mounting plate is slidably connected to the locking frame. The locking frame is extruded and matched with the positioning component, and the left and right parts of the locking frame are connected to the mounting plate with a reset spring, and the locking frame is snap-fitted with the locking piece. When the rotating seat rotates, the locking component needs to be unlocked, and when the locking component is unlocked, the locking frame is squeezed, so that the locking frame compresses the reset spring and disengages from the locking piece, so that the torsion spring is released, and the flip frame is automatically controlled to rotate and unfold the air guide cover, so that when the sampling module is sampling, the air guide cover can accurately guide the air inside the cable trench into the sampling module, thereby improving the accuracy of air extraction.
[0012] More preferably, it also includes a push-pull mechanism, which includes a fixed block and an armrest. The left part of the support frame is connected to the fixed block, and the top of the fixed block is connected to the armrest. The armrest can be used to conveniently control the tilt of the support frame, so that the moving wheels can support the support frame and assist the support frame in moving.
[0013] More preferably, a prompt mechanism is also included, which includes a rotating block and an infrared detector. The rotating block is rotatably connected to the lower left part of the support frame, and the bottom of the rotating block is connected to the infrared detector. The support frame drives the infrared detector to move, and the surface temperature of the cable trench is detected by the infrared detector, which facilitates the inspection of the power trench and can quickly locate the abnormal section of the cable trench.
[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention controls the lifting frame and other components to move up and down by rotating the lifting screw to lift and release the cable trench cover. Compared with the prior operation method of using a crowbar to open the cable trench cover, it can be operated by a single person, and the cable trench cover can be quickly reset and damage to the cable trench cover can be avoided, thereby improving the convenience and safety of cable trench detection.
[0015] 2. The present invention uses the mobile wheels to assist the support frame to move, and cooperates with the handrail to pull the support frame to move for inspection. Compared with the existing operation of setting up multiple fixed detection devices at fixed points next to the cable trench, it can save the cost of cable trench fire detection and can perform flexible and variable fire detection operations in places where fixed detection devices are not installed or cannot be installed. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0017] Figure 2 It is a structural schematic diagram of the present invention.
[0018] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.
[0019] Figure 4 It is a three-dimensional structural schematic diagram of the cover opening mechanism of the present invention.
[0020] Figure 5 It is a partial three-dimensional structural schematic diagram of the cover opening mechanism of the present invention.
[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.
[0022] Figure 7 It is a three-dimensional structural schematic diagram of the protection mechanism of the present invention.
[0023] Figure 8 It is a schematic diagram of the first three-dimensional structure of the guiding mechanism of the present invention.
[0024] Fig. 9 It is a schematic diagram of the second three-dimensional structure of the guiding mechanism of the present invention.
[0025] Fig.10 It is a schematic diagram of the third three-dimensional structure of the guiding mechanism of the present invention.
[0026] Fig.11 It is a three-dimensional structural schematic diagram of the push-pull mechanism and the prompt mechanism of the present invention.
[0027] Fig.12 It is a three-dimensional structural schematic diagram of the prompting mechanism of the present invention.
[0028] The markings of the components in the accompanying drawings are as follows: 1. support frame, 11. moving wheel, 12. support plate, 2. cover opening mechanism, 20. adjustment frame, 21. anti-slip column, 22. adjustment frame, 23. clamping frame, 24. grabbing plate, 25. lifting frame, 26. lifting screw, 27. limit plate, 3. detection mechanism, 30. sampling module, 31. detection module, 32. data processing module, 4. protection mechanism, 40. rotating seat, 41. protection column, 42. support seat, 43. rotating wheel, 44. positioning assembly, 5. guiding mechanism, 50. fixed frame, 51. flip frame, 52. air guide cover, 53. torsion spring, 54. locking piece, 55. mounting plate, 56. locking frame, 57. reset spring, 6. push-pull mechanism, 60. fixed block, 61. armrest, 7. prompt mechanism, 70. rotating block, 71. infrared detector. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] A portable early fire detection device, such as Figure 1-Figure 3 As shown, it includes a support frame 1, a moving wheel 11, a support plate 12, a cover opening mechanism 2 and a detection mechanism 3. The moving wheel 11 is rotatably connected to the lower left side of the support frame 1, the support plate 12 is connected to the lower right side of the support frame 1, the cover opening mechanism 2 is provided on the upper part of the support frame 1, and the detection mechanism 3 is provided on the top of the support plate 12.
[0031] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the cover opening mechanism 2 includes an adjusting frame 20, an anti-slip column 21, an adjusting frame 22, a clamping frame 23, a grabbing plate 24, a lifting frame 25, a lifting screw 26 and a limiting plate 27. The upper part of the support frame 1 is threadedly connected with the lifting screw 26, and the bottom of the lifting screw 26 is slidably and rotatably connected with the lifting frame 25. The lifting frame 25 is connected to the limiting plates 27 on both sides. The front and rear parts of the lifting frame 25 are both slidably and rotatably connected to the clamping frame 23. The gripping plates 24 are connected on the sides of the clamping frames 23 that are away from each other. The gripping plates 24 are rotatably connected to the adjusting frames 22. The adjusting frames 22 are slidably connected with the adjusting frames 20. The front and rear parts of the adjusting frame 20 are connected with the anti-slip columns 21, and the anti-slip columns 21 are slidably connected to the adjacent adjusting frames 22.
[0032] like Figure 1 , Figure 2 and Figure 6As shown, the detection mechanism 3 includes a sampling module 30, a detection module 31 and a data processing module 32. The sampling module 30 is connected to the top of the support plate 12, and the detection module 31 is provided on the top of the sampling module 30. The data processing module 32 is connected to the right side of the upper part of the support frame 1. The sampling module 30 and the detection module 31 are electrically connected, the detection module 31 is electrically connected to the data processing module 32, and the data processing module 32 can be electrically connected to the background signal receiving module.
[0033] like Figure 1 , Figure 2 and Figure 7 As shown, a protective mechanism 4 is also included, which includes a rotating seat 40, a protective column 41, a support seat 42, a rotating wheel 43 and a locking assembly 44. The upper sides of the front and rear parts of the support plate 12 are rotatably connected to the rotating seat 40, the rotating seat 40 is connected to the protective column 41, the left side of the protective column 41 is connected to the support seat 42, the bottom of the support seat 42 is higher than the bottom of the moving wheel 11, the top of the rotating seat 40 is connected to the rotating wheel 43, and a plurality of locking assemblies 44 are provided on the top of the support plate 12. The locking assemblies 44 include a locking rod and a compression spring. The top of the support plate 12 is slidably connected to a plurality of locking rods, and the locking rods are connected to the support plate 12 with compression springs.
[0034] like Figure 1 , Figure 2 , Figure 8 , Fig. 9 and Fig.10 As shown, it also includes a guiding mechanism 5, which includes a fixed frame 50, a flip frame 51, an air guide cover 52, a torsion spring 53, a locking piece 54, a mounting plate 55, a locking frame 56 and a reset spring 57. The left side of the sampling module 30 is connected to the fixed frame 50, the lower part of the fixed frame 50 is rotatably connected to the flip frame 51, the air guide cover 52 is connected between the flip frame 51 and the fixed frame 50, the front and rear sides of the lower part of the flip frame 51 are connected to the fixed frame 50, the front side of the lower part of the flip frame 51 is connected to the locking piece 54, the front side of the lower part of the sampling module 30 is connected to the mounting plate 55, the front part of the mounting plate 55 is slidably connected to the locking frame 56, the locking frame 56 is squeezed and matched with the positioning assembly 44, the left and right parts of the locking frame 56 are connected to the mounting plate 55 with reset springs 57, and the locking frame 56 is snap-fitted with the locking piece 54.
[0035] like Figure 1 , Figure 2 and Fig.11 As shown, a push-pull mechanism 6 is also included, and the push-pull mechanism 6 includes a fixed block 60 and an armrest 61 . The left part of the support frame 1 is connected to the fixed block 60 , and the top of the fixed block 60 is connected to the armrest 61 .
[0036] like Figure 1 , Figure 2 and Fig.12As shown, a prompt mechanism 7 is also included, which includes a rotating block 70 and an infrared detector 71. The rotating block 70 is rotatably connected to the lower left part of the support frame 1, and the bottom of the rotating block 70 is connected to the infrared detector 71.
[0037] When the present invention is in use, the armrest 61 is first used to conveniently control the tilt of the support frame 1, so that the moving wheel 11 can support the support frame 1, and the auxiliary support frame 1 is moved, and the support frame 1 is moved along the cable trench layout area. The support frame 1 drives the infrared detector 71 to move, and the surface temperature of the cable trench is detected by the infrared detector 71, which is convenient for patrol inspection of the power trench and can quickly locate the abnormal section of the cable trench. During the patrol inspection, the infrared detector 71 is used to detect the cable trench. During the fixed-point detection, the support frame 1 is moved and then detected at a predetermined point. During the detection, the lifting screw 26 is rotated to use the thread to make the lifting screw 26 move up and down on the support frame 1, and the lifting frame 25 is controlled to move. When the lifting frame 25 moves, it will drive the adjustment frame 22, the clamping frame 23, the grabbing plate 24 and the adjusting frame 20 move. When the adjusting frame 22, the clamping frame 23 and the grabbing plate 24 move downward, the clamping plates are inserted into the gaps on both sides of the cable trench cover, and then the lifting frame 25 is controlled to move upward by the lifting screw 26. When the lifting frame 25 moves upward, the adjusting frame 20 does not move temporarily under the action of its own weight until the clamping frame 23 drives the grabbing plate 24 to rotate on the adjusting frame 22, so that the grabbing plates 24 are close to each other to clamp the cable trench cover. After that, the clamping frame 23 is affected by the size of the cable trench cover and cannot rotate, and the lifting screw 26 continues to rotate and move upward, so that the adjusting frame 20 and the clamping frame 23 can be lifted by the lifting frame 25, and then the cable trench cover can be lifted. After that, the rotating seat 40 is controlled to rotate by the rotating wheel 43. The rotation of the rotating seat 40 drives the protective column 41 and the supporting seat 42 to rotate, so that the protective column 41 rotates close to each other and moves to under the cable trench cover to prevent the cable trench cover from falling suddenly. When the rotating seat 40 rotates, it is necessary to unlock the locking component 44. When the locking component 44 is unlocked, the locking frame 56 is squeezed, so that the locking frame 56 compresses the reset spring 57 and disengages from the locking member 54, so that the torsion spring 53 is released, and the flip frame 51 is automatically controlled to rotate and unfold the air guide cover 52, so that when the sampling module 30 is sampling, the air guide cover 52 can accurately guide the air inside the cable trench into the sampling module 30, thereby improving the accuracy of air extraction. After that, the sampling module 30 generates negative pressure to send the air inside the cable trench into In the detection module 31, the gas composition inside the cable trench is detected by the detection module 31 to determine the content of carbon monoxide, carbon dioxide and charged pyrolysis in the air inside the cable trench, and to determine whether the cable is aged and has a fire hazard. After the detection module 31 detects that the content of carbon monoxide, carbon dioxide and charged pyrolysis exceeds the preset value, it will send a check or maintenance signal through the data processing module 32, which will be received and prompted by the background signal receiving module to contact a special person for cable maintenance or inspection. After the detection is completed, the rotating seat 40 rotates to remove the protective column 41 from the bottom of the cable trench cover, and locks it with the clamping assembly 44. After the clamping assembly 44 is reset, the reset spring 57 rebounds, and then the flip frame 51 is rotated to be close to the fixed frame 50 to store the air guide cover 52.The locking frame 56 is used to fix the locking member 54 to prevent the torsion spring 53 from rebounding, so that the flip frame 51 can always be close to the fixed frame 50 to fold the air guide cover 52, and then the lifting screw 26 and the lifting frame 25 are controlled to move downward, and the cable trench cover is gradually lowered until the cable trench cover is reset. The support frame 1 is then tilted up using the handrail 61, and the support frame 1 is moved to the next point for detection, or the inspection operation is continued.
[0038] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A portable early fire detection device, characterized in that: The invention comprises a support frame (1), a moving wheel (11), a support plate (12), a cover opening mechanism (2) and a detection mechanism (3); the moving wheel (11) is rotatably connected to the lower left side of the support frame (1); the support plate (12) is connected to the lower right side of the support frame (1); the cover opening mechanism (2) is arranged on the upper part of the support frame (1); and the detection mechanism (3) is arranged on the top of the support plate (12).
2. A portable fire early detection device as claimed in claim 1, characterized in that: The cover opening mechanism (2) comprises an adjusting frame (20), an anti-slip column (21), an adjusting frame (22), a clamping frame (23), a grabbing plate (24), a lifting frame (25), a lifting screw rod (26) and a limiting plate (27). The upper part of the support frame (1) is threadedly connected to the lifting screw rod (26), the bottom of the lifting screw rod (26) is slidably and rotatably connected to the lifting frame (25), and the left and right sides of the lifting frame (25) are connected to the limiting plates (27). The front and rear parts of the lifting frame (25) are both slidably and rotatably connected to the clamping frame (23), the clamping frame (23) is connected to a gripping plate (24) on one side away from each other, the gripping plate (24) is rotatably connected to an adjustment frame (22), the adjustment frame (22) is slidably connected to an adjustment frame (20), the front and rear parts of the adjustment frame (20) are both connected to an anti-slip column (21), and the anti-slip column (21) is slidably connected to an adjacent adjustment frame (22).
3. A portable fire early detection device as claimed in claim 2, characterized in that: The detection mechanism (3) comprises a sampling module (30), a detection module (31) and a data processing module (32); the sampling module (30) is connected to the top of the support plate (12); the detection module (31) is arranged on the top of the sampling module (30); the data processing module (32) is connected to the right side of the upper part of the support frame (1); the sampling module (30) and the detection module (31) are electrically connected; the detection module (31) and the data processing module (32) are electrically connected; and the data processing module (32) can be electrically connected to a background signal receiving module.
4. A portable fire early detection device as claimed in claim 3, characterized in that: The invention also comprises a protection mechanism (4), which comprises a rotating seat (40), a protection column (41), a support seat (42), a rotating wheel (43) and a locking assembly (44); the upper sides of the front and rear parts of the support plate (12) are both rotatably connected to the rotating seat (40); the rotating seat (40) is connected to the protection column (41); the left side of the protection column (41) is connected to the supporting seat (42); the bottom of the supporting seat (42) is higher than the bottom of the moving wheel (11); the top of the rotating seat (40) is connected to the rotating wheel (43); and a plurality of locking assemblies (44) are provided on the top of the support plate (12).
5. A portable fire early detection device as claimed in claim 4, characterized in that: The locking assembly (44) comprises a locking rod and a compression spring. The top of the support plate (12) is slidably connected to a plurality of locking rods, and compression springs are connected between the locking rods and the support plate (12).
6. A portable fire early detection device as claimed in claim 5, characterized in that: The invention also comprises a guiding mechanism (5), wherein the guiding mechanism (5) comprises a fixed frame (50), a flip frame (51), an air guide cover (52), a torsion spring (53), a locking member (54), a mounting plate (55), a locking frame (56) and a reset spring (57); the left side of the sampling module (30) is connected to the fixed frame (50); the lower part of the fixed frame (50) is rotatably connected to the flip frame (51); the air guide cover (52) is connected between the flip frame (51) and the fixed frame (50); the lower part of the flip frame (51) is Torsion springs (53) are connected between the front and rear sides and the fixed frame (50), a locking piece (54) is connected to the front side of the lower part of the flip frame (51), a mounting plate (55) is connected to the front side of the lower part of the sampling module (30), a locking frame (56) is slidably connected to the front of the mounting plate (55), the locking frame (56) is squeezed and matched with the locking assembly (44), the left and right parts of the locking frame (56) are connected to the mounting plate (55) with a return spring (57), and the locking frame (56) is snap-fitted with the locking piece (54).
7. A portable fire early detection device as claimed in claim 6, characterized in that: It also includes a push-pull mechanism (6), which includes a fixed block (60) and an armrest (61). The left part of the support frame (1) is connected to the fixed block (60), and the top of the fixed block (60) is connected to the armrest (61).
8. A portable fire early detection device as claimed in claim 7, characterized in that: It also includes a prompting mechanism (7), which includes a rotating block (70) and an infrared detector (71). The lower left part of the support frame (1) is rotatably connected to the rotating block (70), and the bottom of the rotating block (70) is connected to the infrared detector (71).