Aerosol spray device

Abstract

The invention discloses an aerosol spray device, which mainly relates to the technical field of spray devices. It includes a fixed frame arranged at the top of a cable trench, a movable frame is rotatably connected to the fixed frame, and a plurality of spray devices are arranged on the movable frame. The spray device includes a shell arranged on the movable frame, and a nozzle arranged on the shell. One end of the shell is provided with an ignition device and a storage container connected to the nozzle. The nozzle includes an emission section, a contraction section and a diffusion section. The emission section is connected to the storage container. The other end of the shell is provided with a spray outlet connected to the diffusion section. A concave cover plate is provided at the end of the diffusion section. A through hole connecting the spray outlet and the diffusion section is provided on the concave cover plate. The beneficial effects of the invention are: solving the problems of low spray pressure and short distance of the spray device, and improving the efficiency and effect of fire extinguishing in the cable trench.

Description

Technical Field

[0001] The invention relates to the technical field of spray devices, in particular to an aerosol spray device. Background Art

[0002] An aerosol spray device is a device that can disperse liquid or solid substances into tiny particles and spray them out in the form of an aerosol. It usually consists of a storage container, a pressurization system, a spray nozzle, and a control system. It is widely used in various fields. In the industrial field, it is used for surface coatings, precision spraying in the manufacture of electronic components, etc. In the medical field, certain drugs can be administered in the form of aerosols through an aerosol spray device, which is convenient for patients to inhale and treat respiratory diseases. In the field of firefighting, an aerosol composed of nitrogen, a small amount of carbon dioxide, and solid particles of metal salts can be sprayed to adhere to the fire point to achieve the effect of extinguishing the fire.

[0003] However, when using existing spray devices to spray aerosols, the existing pressurization system cannot achieve rapid pressurization, or requires the installation of a large-scale power device with higher costs, resulting in the spray device having problems of low spray pressure and short distance. It is difficult to reach the concentration required for certain emergency situations in a short period of time, which will delay the rescue time. Summary of the invention

[0004] The object of the present invention is to provide an aerosol spray device to solve the problems of low spray pressure and short spray distance of the spray device and to improve the efficiency and effect of fire extinguishing in the cable trench.

[0005] In order to achieve the above-mentioned purpose, the invention is implemented through the following technical solutions:

[0006] An aerosol spray device comprises a fixed frame arranged at the top of a cable trench, a movable frame is rotatably connected to the fixed frame, a plurality of spray devices are arranged on the movable frame, the spray device comprises a shell arranged on the movable frame, and a nozzle arranged on the shell, an ignition device and a storage container connected to the nozzle are arranged at one end of the shell, the nozzle comprises an emission section, a contraction section and a diffusion section, the emission section is connected to the storage container, the other end of the shell is provided with an injection outlet connected to the diffusion section, the end of the diffusion section is provided with a concave cover plate, and the concave cover plate is provided with a through hole connecting the injection outlet and the diffusion section.

[0007] Furthermore, the fixed frame and the movable frame are respectively provided with a fixed rod and a movable rod, the movable rod is provided with a rotating shaft rotatably connected to the fixed rod, the end of the rotating shaft is provided with a first turntable, and also includes a first motor arranged on the fixed rod to drive the first turntable to rotate.

[0008] Furthermore, a plurality of shifting grooves are provided on one side of the first turntable, a slider is movably connected to the fixed rod, shifting blocks are symmetrically provided on the upper and lower sides of the slider, and the ends of the two shifting blocks are provided with inclined surfaces in contact with the shifting grooves, and the first motor drives the slider to reciprocate.

[0009] Furthermore, a notch is provided on one side of the first turntable for the shift block to pass through, a torsion spring is sleeved on the outer side of the rotating shaft, and two ends of the torsion spring are respectively connected to the first turntable and the fixed rod; one side of the shift block contacts the notch and limits the first turntable from rotating on the fixed frame.

[0010] Furthermore, a first swing rod is provided at the movable end of the first motor, a first connecting rod is provided between the first swing rod and the slider, and two ends of the first connecting rod are rotatably connected to the slider and the first swing rod respectively.

[0011] Furthermore, a second rocker arm is provided at the end of the shell, a first column rotatably connected to the second rocker arm is provided on the movable frame, a sliding groove is provided at the end of the second rocker arm, a sliding rod is slidably connected to the movable frame, and a second column slidably contacting the sliding groove is provided on the sliding rod.

[0012] Furthermore, a second motor is provided on the movable frame, a second turntable is provided at the movable end of the second motor, one side of the second turntable is rotatably connected to a second connecting rod, and the other end of the second connecting rod is rotatably connected to the sliding rod.

[0013] Furthermore, an adjusting block is slidably connected to the second rotating disk, and an end of the second connecting rod is rotatably connected to the adjusting block.

[0014] Furthermore, a third column is provided at the end of the adjusting block, and a driving disk is rotatably connected to the other side of the second turntable. A vortex groove is provided on the driving disk, and the vortex groove contacts the third column and drives the adjusting block to slide on the second turntable.

[0015] Furthermore, the second turntable is provided with a sleeve slidably connected to the driving disk, the sleeve is connected to the movable end of the second motor, the sleeve is provided with a plurality of notches, a limiting block is slidably connected in the notches, the driving disk is provided with a limiting groove plug-matched with the limiting block, and the sleeve is threadedly connected with a nut in contact with the end of the limiting block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When a fire occurs in the cable trench, the movable frame and the fixed frame cooperate to drive several groups of spray devices on the movable frame to aim at the fire point; at the same time, a signal is transmitted to the aerosol fire extinguisher, and the ignition device is triggered by the current, so that the solid fire extinguishing agent in the storage container produces an oxidation-reduction reaction to form a large amount of condensed fire extinguishing aerosol (the aerosol contains nitrogen, a small amount of carbon dioxide and metal salt solid particles, etc.);

[0018] Subsequently, under the action of the internal and external pressure difference, the aerosol flows out of the storage container into the emission section of the nozzle. The nozzle, the contraction section, and the diffusion section cooperate to accelerate the flow speed of the aerosol. Then, the concave surface of the concave cover plate contacts the aerosol, and the aerosol is collected at the central through hole, so that the sprayed aerosol is more concentrated and directional, and the efficiency and accuracy of aerosol spraying are improved, thereby improving the efficiency and effect of fire extinguishing in the cable trench, avoiding large-scale fires in the cable trench, and preventing a large number of cable cross-sections from being partially damaged, causing large-scale power outages; at the same time, the setting of the concave surface can change the velocity distribution of the jet flow, produce a local acceleration effect at the concave surface, enhance the impact force of the aerosol spray, and further improve the efficiency and effect of fire extinguishing in the cable trench;

[0019] 2. Through the cooperation among the first motor, the first swing rod, the first connecting rod and the slider, the slider is driven to slide back and forth on the fixed frame, and the first motor does not need to be frequently turned around to drive the slider to move back and forth, thereby extending the service life of the first motor and reducing the number of times the spray device is maintained; through the cooperation among one of the shifting blocks, the inclined surface, the shifting groove and the first rotating disk, the first rotating disk is driven to rotate the required angle on the fixed frame, thereby driving the movable frame to rotate the corresponding angle on the fixed frame, so that the spray device is aimed at the flame for spraying, thereby improving the efficiency and effect of fire extinguishing in the cable trench, avoiding large-scale fire in the cable trench, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages;

[0020] 3. The inclined surface provided on one side of the shift block contacts the shift groove, and the component force generated drives the first turntable to rotate a certain angle. Then, the other side of the shift block contacts the other side of the shift groove, and the resistance generated limits the rotation of the first turntable on the fixed frame, so as to prevent the external force from accidentally driving the first turntable to rotate, changing the angle of the movable frame on the fixed frame, causing the spray angle of the spray device to deviate, thereby improving the efficiency and effect of fire extinguishing in the cable trench, avoiding large-scale fires in the cable trench, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages; in addition, after the fire is extinguished, the first motor, the shift block, the shift groove, the torsion spring, the first turntable, and the fixed frame cooperate to drive the movable frame to rotate on the fixed frame, so that the spray device returns to the initial position, which is convenient for timely adjusting the angle of the spray device next time, and improving the efficiency of the next fire extinguishing of the spray device; in addition, there is no need to rotate the first turntable once to return the spray device to the initial position, which improves the efficiency of resetting the spray device; at the same time, the spray device is prevented from interfering with the cable trench wall during the rotation of the spray device, so as to avoid damage to the spray device, thereby extending the service life of the spray device and improving the efficiency of the next fire extinguishing of the spray device;

[0021] 4. The cooperation among the second motor, the second turntable, the second connecting rod and the sliding rod drives the sliding rod to swing back and forth on the movable frame, and then the cooperation among the sliding rod, the second column and the slide groove drives the spraying device to swing back and forth on the movable frame, thereby increasing the coverage of the spraying aerosol sprayed by the spraying device, realizing rapid fire extinguishing of multiple fire points, improving the efficiency and effect of fire extinguishing in the cable trench, avoiding large-scale fire in the cable trench, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages; in addition, there is no need to separately set up a power device to drive several spraying devices to swing back and forth, reducing the space required for the installation of the power device and the cost required for manufacturing;

[0022] 5. When installing the spray device, the adjustment block is driven to slide on the second turntable through the cooperation between the second turntable, the driving plate, the vortex groove and the third column, thereby increasing or decreasing the distance from the end of the second connecting rod to the center of the second motor, increasing or decreasing the range of motion of the slide bar on the movable frame, and then adjusting the swing range of the spray device, and changing the coverage range of the aerosol according to actual needs, thereby achieving large-scale coverage fire extinguishing or small-scale precise fire extinguishing according to past experience, thereby improving the efficiency and effect of fire extinguishing in the cable trench, avoiding large-scale fires in the cable trench, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages;

[0023] 6. After adjusting the position of the adjusting block, the rotation of the driving disk relative to the turntable is limited by the cooperation between the shaft sleeve, the notch, the limit block, the driving disk and the limit groove, thereby preventing the external force from accidentally driving the driving disk to rotate and changing the swing range of the injection device, resulting in the aerosol sprayed by the injection device being unable to cover all fire points, or unable to quickly extinguish a single fire point, thereby improving the efficiency and effectiveness of fire extinguishing in the cable trench; in addition, by rotating the nut on the shaft sleeve, the nut is brought into contact with the end of the limit block, thereby limiting the sliding of the limit block on the shaft sleeve, further improving the stability of the overall structure, and improving the efficiency and effectiveness of fire extinguishing in the cable trench. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Attached Figure 1 It is a schematic diagram of the structure of the injection device of the present invention.

[0025] Attached Figure 2 It is a structural schematic diagram of the movable frame of the present invention.

[0026] Attached Figure 3 It is a schematic diagram of the structure inside the shell of the present invention.

[0027] Attached Figure 4 The present invention Figure 3 A partial enlarged view of area A in the middle.

[0028] Attached Figure 5 It is a structural schematic diagram of a slider of the present invention.

[0029] Attached Figure 6 It is a structural schematic diagram of the first turntable of the present invention.

[0030] Attached Figure 7 It is a structural schematic diagram of the shifting block of the present invention.

[0031] Attached Figure 8 It is a structural schematic diagram of the slide bar of the present invention.

[0032] Attached Fig. 9 It is a structural schematic diagram of the vortex groove of the present invention.

[0033] Attached Fig.10 It is a structural schematic diagram of the limit block of the present invention.

[0034] Numbers shown in the accompanying drawings:

[0035] 1. Cable trench; 2. Fixed frame; 3. Movable frame; 4. Injection device; 5. Shell; 6. Nozzle; 7. Ignition device; 8. Storage container; 9. Launch section; 10. Contraction section; 11. Diffusion section; 12. Injection outlet; 13. Concave cover plate; 14. Through hole;

[0036] 15. fixed rod; 16. movable rod; 17. rotating shaft; 18. first rotating disk; 19. first motor; 20. shifting groove; 21. sliding block; 22. shifting block; 23. inclined surface; 24. notch; 25. torsion spring; 26. first swing rod; 27. first connecting rod;

[0037] 28. Second rocker arm; 29. ​​First column; 30. Slide groove; 31. Slide rod; 32. Second column; 33. Second motor; 34. Second turntable; 35. Second connecting rod; 36. Adjustment block; 37. Third column; 38. Drive disk; 39. Vortex groove; 40. Bushing; 41. Notch; 42. Limit block; 43. Limit groove; 44. Nut. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.

[0039] The present invention provides an aerosol spray device, such as Figure 1-Figure 4As shown, it includes a fixed frame 2 arranged on the top of the cable trench 1, and a movable frame 3 is rotatably connected to the fixed frame 2. A plurality of groups of injection devices 4 are arranged on the movable frame 3. When a fire occurs in the cable trench 1, the flame detector detects the light radiation generated by the flame, and the transmission model will control the center to drive the movable frame 3 to rotate on the fixed frame 2, so as to drive the plurality of groups of injection devices 4 on the movable frame 3 to aim at the fire point, thereby realizing accurate fire extinguishing and improving the efficiency and effect of fire extinguishing in the cable trench 1; the injection device 4 includes a shell 5 arranged on the movable frame 3, and a nozzle 6 arranged on the shell 5, and one end of the shell 5 is provided with an ignition device 7 and a nozzle connected to the nozzle The storage container 8 connected to the cable 6 is connected to the storage container 8, and the ignition device 7 is triggered by electric current, so that the solid fire extinguishing agent in the storage container 8 undergoes an oxidation-reduction reaction to form a large amount of agglomerated fire extinguishing aerosol (the aerosol contains nitrogen, a small amount of carbon dioxide and metal salt solid particles, etc.), which is used to cover the flame inside the cable. At the same time, the aerosol fire extinguishing agent sprayed out is harmless to the human body and equipment, avoiding damage to the human body and equipment; the nozzle 6 includes an emission section 9, a contraction section 10 and a diffusion section 11, the emission section 9 is connected to the storage container 8, and the other end of the shell 5 is provided with an injection outlet 12 connected to the diffusion section 11, and the end of the diffusion section 11 A concave cover plate 13 is provided, and a through hole 14 connecting the injection outlet 12 and the diffusion section 11 is provided on the concave cover plate 13. Under the action of the internal and external pressure difference, the aerosol flows out from the storage container 8 into the emission section 9 of the nozzle 6, and then enters the contraction section 10 of the nozzle 6. At this stage, the movement of the aerosol follows the principle that "when the fluid moves in the tube, the flow velocity is large at a small cross-section and the flow velocity is small at a large cross-section", so the aerosol is continuously accelerated. When the aerosol reaches the narrow throat, the flow velocity has exceeded the speed of sound. However, when the transonic fluid moves, it no longer follows the principle that "the flow velocity is large at a small cross-section and the flow velocity is small at a large cross-section", but on the contrary, the larger the cross-section, the higher the flow velocity. The faster the aerosol reaches the diffusion section 11, its speed is further accelerated, and then the concave surface of the concave cover plate 13 contacts the aerosol, and the aerosol is gathered to the central through hole 14, so that the sprayed aerosol is more concentrated and directional, and the efficiency and accuracy of aerosol spraying are improved, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being partially damaged, causing large-scale power outages; at the same time, the setting of the concave surface can change the velocity distribution of the jet flow, produce a local acceleration effect at the concave surface, enhance the impact force of the aerosol spray, and further improve the efficiency and effect of fire extinguishing in the cable trench 1.

[0040] Preferably, Figure 2 , Figure 5 and Figure 6As shown, a fixed rod 15 and a movable rod 16 are respectively provided on the fixed frame 2 and the movable frame 3, and a rotating shaft 17 rotatably connected to the fixed rod 15 is provided on the movable rod 16, so that the movable frame 3 is rotatably set on the fixed frame 2, and at the same time, the rotating radius of the movable frame 3 on the fixed frame 2 is increased to avoid interference between the movable frame 3 and the fixed frame 2; a first turntable 18 is provided at the end of the rotating shaft 17, and also includes a first motor 19 arranged on the fixed rod 15 to drive the first turntable 18 to rotate, providing power for the rotation of the first turntable 18, and using the first motor 19 as the driving power, compared with the cylinder drive, it can more accurately control the rotation amplitude of the first turntable 18, so that the injection device 4 is aimed at the flame for injection, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages.

[0041] Preferably, Figure 6 and Figure 7 As shown, a plurality of shifting grooves 20 are provided on one side of the first rotating disk 18, and a slider 21 is movably connected to the fixing rod 15. Shifting blocks 22 are symmetrically provided on the upper and lower sides of the slider 21, and the ends of the two shifting blocks 22 are provided with inclined surfaces 23 that contact the shifting grooves 20. The first motor 19 drives the slider 21 to reciprocate, and the first motor 19 drives the slider 21 to move forward, so that the inclined surface 23 provided at the end of one of the shifting blocks 22 first contacts one side of the shifting groove 20, and the component force generated after the two contact drives the first rotating disk 18 to rotate a certain angle until the inclined surface 23 provided at the end of the other shifting block 22 contacts the next shifting groove 20. The first motor 19 drives the sliding reverse movement so that the inclined surface 23 provided at the end of the other shifting block 22 contacts with one side of the shifting groove 20. The component force generated after the contact between the two drives the first turntable 18 to rotate a certain angle again. The above steps are repeated multiple times to drive the first turntable 18 to rotate the required angle on the fixed frame 2, thereby driving the movable frame 3 to rotate the corresponding angle on the fixed frame 2, so that the injection device 4 sprays at the flame, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages.

[0042] Preferably, Figure 5 , Figure 6 and Figure 7As shown, a notch 24 is provided on one side of the first rotating disk 18 for the shift block 22 to pass through, and a torsion spring 25 is sleeved on the outer side of the rotating shaft 17, and the two ends of the torsion spring 25 are respectively connected to the first rotating disk 18 and the fixing rod 15; one side of the shift block 22 contacts the notch 24 and limits the first rotating disk 18 from rotating on the fixing frame 2, and the inclined surface 23 provided on one side of the shift block 22 contacts the shift groove 20. After the component force generated drives the first rotating disk 18 to rotate a certain angle, the other side of the shift block 22 contacts the other side of the shift groove 20, and the resistance generated limits the first rotating disk 18 from rotating on the fixing frame 2, so as to prevent the external force from accidentally driving the first rotating disk 18 to rotate, changing the angle of the movable frame 3 on the fixing frame 2, causing the spraying angle of the spraying device 4 to deviate, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, and avoiding large-scale fire in the cable trench 1. , to prevent a large number of cable cross-section parts from being damaged, causing large-scale power outages; in addition, after the fire is extinguished, the first motor 19 drives the two shift blocks 22 to reset. At this time, the two shift blocks 22 are not in contact with the shift groove 20. Under the action of the rebound force of the torsion spring 25, the first turntable 18 is driven to rotate on the fixed frame 2, and the movable frame 3 is driven to rotate on the fixed frame 2, so that the injection device 4 returns to the initial position, which is convenient for timely adjusting the angle of the injection device 4 next time, and improving the efficiency of the next fire extinguishing by the injection device 4; in addition, there is no need to rotate the first turntable 18 one circle to return the injection device 4 to the initial position, which improves the efficiency of resetting the injection device 4; at the same time, it prevents the injection device 4 from interfering with the wall of the cable trench 1 during the rotation of the injection device 4, avoids damage to the injection device 4, and thus extends the service life of the injection device 4 and improves the efficiency of the next fire extinguishing by the injection device 4.

[0043] Preferably, Figure 5 , Figure 6 and Figure 7 As shown, a first swing rod 26 is provided at the movable end of the first motor 19, and a first connecting rod 27 is provided between the first swing rod 26 and the slider 21, and two ends of the first connecting rod 27 are respectively rotatably connected to the slider 21 and the first swing rod 26, and the first motor 19 drives the first swing rod 26 to rotate. Since the two ends of the first connecting rod 27 are respectively rotatably connected to the slider 21 and the first swing rod 26, the slider 21 is driven to slide back and forth on the fixed frame 2, and the first motor 19 does not need to be frequently turned around to reversely drive the slider 21 to reciprocate, thereby extending the service life of the first motor 19 and reducing the number of times the injection device 4 is maintained.

[0044] Preferably, Figure 2 , Figure 8 and Fig. 9As shown, a second swing arm 28 is provided at the end of the shell 5, a first column 29 rotatably connected to the second swing arm 28 is provided on the movable frame 3, a slide groove 30 is provided at the end of the second swing arm 28, a slide rod 31 is slidably connected to the movable frame 3, and a second column 32 slidably contacting with the slide groove 30 is provided on the slide rod 31. The slide rod 31 is slid on the movable frame 3, and the second column 32 provided on the slide rod 31 further contacts the slide groove 30. The component force generated drives the second swing arm 28 to swing around the first column 29 on the movable frame, and drives the spray device 4 to swing back and forth on the movable frame 3, thereby increasing the coverage of the aerosol sprayed by the spray device 4, realizing rapid fire extinguishing of multiple fire points, improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being partially damaged, causing large-scale power outages.

[0045] Preferably, Figure 8 , Fig. 9 and Fig.10 As shown, the movable frame 3 is provided with a second motor 33, and the movable end of the second motor 33 is provided with a second turntable 34, one side of the second turntable 34 is rotatably connected with a second connecting rod 35, and the other end of the second connecting rod 35 is rotatably connected to the sliding rod 31, and the second turntable 34 is driven to rotate by the second motor 33. Since the two ends of the second connecting rod 35 are rotatably connected to the second turntable 34 and the sliding rod 31 respectively, the sliding rod 31 is driven to swing back and forth on the movable frame 3, and the injection device 4 is driven to swing back and forth on the movable frame 3, thereby increasing the coverage of the aerosol sprayed by the injection device 4, realizing rapid fire extinguishing of multiple fire points, improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages.

[0046] Preferably, Figure 8 , Fig. 9 and Fig.10 As shown, an adjusting block 36 is slidably connected to the second turntable 34, and the end of the second connecting rod 35 is rotatably connected to the adjusting block 36. By sliding the adjusting block 36 on the second turntable 34, the distance from the end of the second connecting rod 35 to the center of the second motor 33 is increased or decreased, and the movable range of the slide bar 31 on the movable frame 3 is increased or decreased, thereby adjusting the swing range of the injection device 4, and changing the coverage range of the aerosol according to actual needs, thereby achieving large-scale coverage fire extinguishing or small-scale precise fire extinguishing according to past experience, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages.

[0047] Preferably, Figure 8 , Fig. 9 and Fig.10As shown, a third column 37 is provided at the end of the adjusting block 36, and a driving disk 38 is rotatably connected to the other side of the second turntable 34. A vortex groove 39 is provided on the driving disk 38, and the vortex groove 39 contacts the third column 37 and drives the adjusting block 36 to slide on the second turntable 34. The driving disk 38 is rotated relative to the second turntable 34, and the vortex groove 39 provided on the driving disk 38 further contacts the third column 37. The component force generated drives the adjusting block 36 to slide on the second turntable 34, thereby adjusting the swing range of the injection device 4, and realizing a large-scale coverage fire extinguishing or a small-scale precise fire extinguishing according to past experience, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1.

[0048] Preferably, Fig.10 As shown, the second rotating disk 34 is provided with a shaft sleeve 40 slidably connected to the driving disk 38, the shaft sleeve 40 is connected to the movable end of the second motor 33, the shaft sleeve 40 is provided with a plurality of notches 41, and a limiting block 42 is slidably connected in the notch 41, the driving disk 38 is provided with a limiting groove 43 plugged with the limiting block 42, and the shaft sleeve 40 is threadedly connected with a nut 44 that contacts the end of the limiting block 42. After adjusting the position of the adjusting block 36, the limiting block 42 is slid into the limiting groove 43 provided on the driving disk 38 by sliding the limiting block 42 on the notch 41 provided on the shaft sleeve 40, and the limiting block 42 slides into the limiting groove 43 provided on the driving disk 38. The resistance generated by the contact between 42 and the shaft sleeve 40 and the driving disk 38 limits the rotation of the driving disk 38 relative to the turntable, thereby preventing the external force from accidentally driving the driving disk 38 to rotate, changing the swing range of the injection device 4, resulting in the aerosol sprayed by the injection device 4 being unable to cover all fire points, or unable to quickly extinguish a single fire point, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1; in addition, by rotating the nut 44 on the shaft sleeve 40, the nut 44 is in contact with the end of the limit block 42, thereby limiting the sliding of the limit block 42 on the shaft sleeve 40, further improving the stability of the overall structure, and improving the efficiency and effect of fire extinguishing in the cable trench 1.

[0049] Example 1

[0050] The present invention provides an aerosol spray device, such as Figure 1-Figure 4 As shown, when a fire occurs in the cable trench 1, the flame detector detects the light radiation generated by the flame, and the transmission model will control the center, driving the movable frame 3 to rotate on the fixed frame 2, driving the several groups of injection devices 4 on the movable frame 3 to aim at the fire point;

[0051] At the same time, the control center transmits a signal to the aerosol fire extinguisher, triggering the ignition device 7 through the current, so that the solid fire extinguishing agent in the storage container 8 undergoes an oxidation-reduction reaction, forming a large amount of condensed fire extinguishing aerosol (the aerosol contains nitrogen, a small amount of carbon dioxide and metal salt solid particles, etc.);

[0052] Subsequently, under the action of the internal and external pressure difference, the aerosol flows out of the storage container 8 into the emission section 9 of the nozzle 6, and then enters the contraction section 10 of the nozzle 6. At this stage, the movement of the aerosol follows the principle that "when the fluid moves in the tube, the flow velocity is large at a small cross-section and small at a large cross-section", so the aerosol is continuously accelerated. When the aerosol reaches the narrow throat, the flow velocity has exceeded the speed of sound; however, the transonic fluid no longer follows the principle that "the flow velocity is large at a small cross-section and small at a large cross-section" when moving, but on the contrary, the larger the cross-section, the faster the flow velocity. Therefore, when the aerosol reaches the diffusion section 11, its The speed is further accelerated, and then the concave surface of the concave cover plate 13 contacts the aerosol, and the aerosol is collected at the central through hole 14, so that the sprayed aerosol is more concentrated and directional, and the efficiency and accuracy of aerosol spraying are improved, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fires in the cable trench 1, and preventing a large number of cable cross-sections from being partially damaged, causing large-scale power outages; at the same time, the setting of the concave surface can change the velocity distribution of the jet flow, produce a local acceleration effect at the concave surface, enhance the impact force of the aerosol spray, and further improve the efficiency and effect of fire extinguishing in the cable trench 1;

[0053] Finally, the sprayed aerosol covers the fire point, thereby quickly suppressing the combustion reaction and quickly extinguishing the fire point in the cable trench 1.

[0054] Example 2

[0055] On the basis of Example 1, Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the first swing rod 26 is driven to rotate by the first motor 19. Since the two ends of the first connecting rod 27 are respectively connected to the slider 21 and the first swing rod 26 for rotation, the slider 21 is driven to slide back and forth on the fixed frame 2. There is no need for the first motor 19 to frequently reverse and drive the slider 21 to move back and forth, thereby extending the service life of the first motor 19 and reducing the number of times the injection device 4 is maintained. When the first motor 19 drives the slider 21 to move forward, the inclined surface 23 provided at the end of one of the shifting blocks 22 first contacts one side of the shifting groove 20. The component force generated after the two contact drives the first turntable 18 to rotate a certain angle until the inclined surface 23 provided at the end of the other shifting block 22 contacts the first turntable 18. The surface 23 corresponds to one side of the next shifting groove 20; then the first motor 19 drives the sliding reverse movement, so that the inclined surface 23 provided at the end of another shifting block 22 contacts one side of the shifting groove 20, and the component force generated after the two contact drives the first rotating disk 18 to rotate a certain angle again, repeating the above steps for many times, driving the first rotating disk 18 to rotate the required angle on the fixed frame 2, thereby driving the movable frame 3 to rotate the corresponding angle on the fixed frame 2, so that the spraying device 4 sprays at the flame, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages;

[0056] In addition, the inclined surface 23 provided on one side of the shift block 22 contacts the shift groove 20, and the component force generated drives the first turntable 18 to rotate a certain angle. Then, the other side of the shift block 22 contacts the other side of the shift groove 20, and the resistance generated limits the rotation of the first turntable 18 on the fixed frame 2, thereby preventing the external force from accidentally driving the first turntable 18 to rotate, changing the angle of the movable frame 3 on the fixed frame 2, causing the injection angle of the injection device 4 to deviate, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages; in addition, after the fire is extinguished, the first motor 19 drives the two shift blocks 22 to reset. At this time, the two Each of the shifting blocks 22 does not contact the shifting groove 20. Under the action of the rebound force of the torsion spring 25, the first turntable 18 is driven to rotate on the fixed frame 2, and the movable frame 3 is driven to rotate on the fixed frame 2, so that the injection device 4 returns to the initial position, which is convenient for timely adjusting the angle of the injection device 4 next time, and the efficiency of the next fire extinguishing of the injection device 4 is improved; in addition, there is no need to rotate the first turntable 18 one circle to return the injection device 4 to the initial position, which improves the efficiency of resetting the injection device 4; at the same time, it prevents the injection device 4 from interfering with the wall of the cable trench 1 during the rotation of the injection device 4, avoids damage to the injection device 4, and thus extends the service life of the injection device 4 and improves the efficiency of the next fire extinguishing of the injection device 4.

[0057] Example 3

[0058] On the basis of Example 1, Figure 2 , Figure 8 , Fig. 9 and Fig.10 As shown, the second turntable 34 is driven to rotate by the second motor 33. Since the two ends of the second connecting rod 35 are rotatably connected to the second turntable 34 and the sliding rod 31 respectively, the sliding rod 31 is driven to swing back and forth on the movable frame 3, and the second column 32 provided on the sliding rod 31 is further in contact with the slide groove 30. The component force generated drives the second swing rod 28 to swing back and forth around the first column 29 on the movable body, and drives the injection device 4 to swing back and forth on the movable frame 3, thereby increasing the coverage of the aerosol sprayed by the injection device 4, realizing rapid fire extinguishing of multiple fire points, improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being damaged, causing large-scale power outages.

[0059] Example 4

[0060] On the basis of Example 3, Figure 8 , Fig. 9 and Fig.10 As shown, when the spray device 4 is installed, the driving disk 38 is rotated relative to the second rotating disk 34, and the vortex groove 39 provided on the driving disk 38 further contacts the third column 37, and the component force generated drives the adjustment block 36 to slide on the second rotating disk 34, thereby increasing or decreasing the distance from the end of the second connecting rod 35 to the center of the second motor 33, increasing or decreasing the range of motion of the slide bar 31 on the movable frame 3, and then adjusting the swing range of the spray device 4, and changing the coverage range of the aerosol according to actual needs, so as to achieve large-scale coverage fire extinguishing or small-scale precise fire extinguishing according to past experience, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1, avoiding large-scale fire in the cable trench 1, and preventing a large number of cable cross-sections from being partially damaged, causing large-scale power outages;

[0061] After adjusting the position of the adjustment block 36, the limit block 42 is slid on the notch 41 provided on the sleeve 40 so that the limit block 42 slides into the limit groove 43 provided on the drive disk 38. The resistance generated by the contact between the limit block 42, the sleeve 40 and the drive disk 38 limits the rotation of the drive disk 38 relative to the turntable, thereby preventing the external force from accidentally driving the drive disk 38 to rotate and changing the swing range of the injection device 4, resulting in the aerosol sprayed by the injection device 4 being unable to cover all fire points, or unable to quickly extinguish a single fire point, thereby improving the efficiency and effect of fire extinguishing in the cable trench 1; in addition, by rotating the nut 44 on the sleeve 40, the nut 44 is in contact with the end of the limit block 42, thereby limiting the sliding of the limit block 42 on the sleeve 40, further improving the stability of the overall structure, and improving the efficiency and effect of fire extinguishing in the cable trench 1.

Claims

1. An aerosol spray device, comprising a fixed frame (2) arranged on the top of a cable trench (1), a movable frame (3) rotatably connected to the fixed frame (2), and a plurality of spray devices (4) arranged on the movable frame (3), characterized in that: The injection device (4) comprises a shell (5) arranged on a movable frame (3), and a nozzle (6) arranged on the shell (5); an ignition device (7) and a storage container (8) connected to the nozzle (6) are arranged at one end of the shell (5); the nozzle (6) comprises an emission section (9), a contraction section (10) and a diffusion section (11); the emission section (9) is connected to the storage container (8); the other end of the shell (5) is provided with an injection outlet (12) connected to the diffusion section (11); a concave cover plate (13) is provided at the end of the diffusion section (11); a through hole (14) connecting the injection outlet (12) and the diffusion section (11) is provided on the concave cover plate (13); A second swing rod (28) is provided at the end of the housing (5); a first column (29) rotatably connected to the second swing rod (28) is provided on the movable frame (3); a sliding groove (30) is provided at the end of the second swing rod (28); a sliding rod (31) is slidably connected to the movable frame (3); and a second column (32) is provided on the sliding rod (31) in sliding contact with the sliding groove (30); The movable frame (3) is provided with a second motor (33), a movable end of the second motor (33) is provided with a second rotating disk (34), one side of the second rotating disk (34) is rotatably connected to a second connecting rod (35), and the other end of the second connecting rod (35) is rotatably connected to the sliding rod (31); An adjusting block (36) is slidably connected to the second rotating disk (34), and an end of the second connecting rod (35) is rotatably connected to the adjusting block (36); A third column (37) is provided at the end of the adjusting block (36); a driving disk (38) is rotatably connected to the other side of the second rotating disk (34); a vortex groove (39) is provided on the driving disk (38); the vortex groove (39) is in contact with the third column (37) and drives the adjusting block (36) to slide on the second rotating disk (34); The second rotating disk (34) is provided with a shaft sleeve (40) which is slidably connected to the driving disk (38); the shaft sleeve (40) is connected to the movable end of the second motor (33); the shaft sleeve (40) is provided with a plurality of notches (41); a limit block (42) is slidably connected in the notches (41); the driving disk (38) is provided with a limit groove (43) which is plugged into and matched with the limit block (42); and a nut (44) which contacts the end of the limit block (42) is threadedly connected to the shaft sleeve (40); The fixed frame (2) and the movable frame (3) are respectively provided with a fixed rod (15) and a movable rod (16); the movable rod (16) is provided with a rotating shaft (17) rotatably connected to the fixed rod (15); a first rotating disk (18) is provided at the end of the rotating shaft (17); and a first motor (19) is provided on the fixed rod (15) and drives the first rotating disk (18) to rotate; A plurality of shifting grooves (20) are provided on one side of the first rotating disk (18); a slider (21) is movably connected to the fixing rod (15); shifting blocks (22) are symmetrically provided on the upper and lower sides of the slider (21); ends of the two shifting blocks (22) are provided with inclined surfaces (23) in contact with the shifting grooves (20); and the first motor (19) drives the slider (21) to reciprocate; A first swing rod (26) is provided at the movable end of the first motor (19), a first connecting rod (27) is provided between the first swing rod (26) and the slider (21), and two ends of the first connecting rod (27) are rotatably connected to the slider (21) and the first swing rod (26), respectively.

2. An aerosol spray device according to claim 1, characterized in that: A notch (24) is provided on one side of the first rotating disk (18) for the shifting block (22) to pass through, and a torsion spring (25) is sleeved on the outer side of the rotating shaft (17), with two ends of the torsion spring (25) respectively connected to the first rotating disk (18) and the fixing rod (15); one side of the shifting block (22) contacts the notch (24) and restricts the first rotating disk (18) from rotating on the fixing frame (2).

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