CN109763991B - Prevent exhaust fan controlgear - Google Patents
Prevent exhaust fan controlgear Download PDFInfo
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- CN109763991B CN109763991B CN201910139086.9A CN201910139086A CN109763991B CN 109763991 B CN109763991 B CN 109763991B CN 201910139086 A CN201910139086 A CN 201910139086A CN 109763991 B CN109763991 B CN 109763991B
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Abstract
The invention discloses a smoke prevention and exhaust fan control device which is technically characterized by comprising a box body and a box door, wherein a plurality of control buttons are arranged on the outer side of the box door, a false touch prevention device is arranged at the position of each control button, each false touch prevention device comprises a protective cover, connecting strips are connected to two sides of each protective cover, connecting columns and connecting lugs are connected to two sides of each control button on the outer side of the box door, each connecting strip is provided with a strip-shaped hole, the connecting columns and the connecting lugs are respectively positioned at two ends of each strip-shaped hole, each connecting strip is arched at one end of each connecting lug to form an arch bridge part, each connecting lug is hemispherical, and one end of each connecting column penetrating through each strip-shaped hole is in threaded connection with a limit screw. The protection cover can play the effect of protecting the control button from being accidentally pressed, and is suitable for protecting the control button which is easy to cause trouble after pressing the control alarm lamp and the like.
Description
Technical Field
The invention relates to a fire-fighting system, in particular to a smoke prevention and exhaust fan control device.
Background
Because inflammable materials in the building are visible everywhere at present, a certain fire risk exists, and therefore a fire extinguishing system is required to be equipped. The smoke prevention and exhaust fan is an important component part of the fire extinguishing system, timely discharges smoke in the evacuation channel and prevents the smoke from entering the evacuation channel, and can provide safety guarantee for people to escape. The fan is turned on and off by means of control equipment. The fan control apparatus generally includes a case, a switching element, an operation button, an indicator lamp, an alarm, etc.,
the Chinese patent with the bulletin number of CN202746249U discloses a smoke exhaust fan control box, which comprises a box body, a box door, an indicator light and a switch, wherein the box door is fixed on the box body through a hinge, the box door is provided with the switch and the indicator light corresponding to the switch, the switch is in circuit connection with the indicator light, and the indicator light and the switch are provided with two groups, namely a starting button and a starting indicator light; a stop button and a stop indicator lamp are a set, the chamber door is provided with an adjusting button, manual control or automatic control is determined to be adopted for the control chamber through the adjusting button, the top of the chamber body is provided with a wire outlet hole, and two sides of the chamber body are provided with heat dissipation grooves.
Above-mentioned fan control box's start button passes the chamber door and exposes outside the door, and then the people of being convenient for press the button fast when the conflagration takes place, need not to open the chamber door, but has following technical defect: the button is easily pressed down due to accidental touching, and unnecessary trouble is caused.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide a smoke prevention and exhaust fan control device, which is not easy to press a button caused by accidental touch.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a prevent smoke exhaust fan controlgear, includes box and chamber door, the chamber door outside is provided with a plurality of control button, control button department is provided with prevents that the mistake touches the device, prevent that the mistake touches the device and include the safety cover, the safety cover both sides all are connected with the connecting strip, the chamber door outside all is connected with spliced pole and connection lug in the control button both sides, the connecting strip is provided with the bar hole, spliced pole and connection lug are located bar hole both ends respectively, the connecting strip arches in connection lug one end and forms arch bridge portion, the connection lug is hemispherical, the one end threaded connection that the spliced pole passed the bar hole has stop screw.
By adopting the technical scheme, the protective cover can play a role in protecting the control button from being accidentally pressed, and is suitable for protecting the control button which is easy to cause trouble after pressing the control alarm lamp and the like; when the control button is required to be pressed, the protective cover is pulled down, so that the arch bridge part passes through the connecting convex blocks until the arch bridge part is blocked by the connecting screws, and at the moment, the protective cover is misplaced relative to the control button, so that people can press the control button quickly; after the limit screw is unscrewed, the anti-false touch device can be detached from the box door, and is convenient to replace.
The invention is further provided with: the door is provided with the observation hole in control button downside, the door is provided with the observation window in observation hole department inboard, the outside is provided with dust keeper, dust keeper includes the dust guard, the dust guard upper end is articulated with the chamber door, the connecting lug is located the spliced pole directly over, safety cover downside fixedly connected with locking piece, there is the clearance between locking piece and the chamber door and can supply the dust guard card to go into.
By adopting the technical scheme, workers can regularly check whether the electrical elements in the box body normally run or not so as to ensure that the control box normally runs when a fire disaster occurs. When the inspection is performed, the dustproof plate is rotated to the other side to be clung to the box door, the protective cover is pulled down again, the dustproof plate is clamped into a gap between the locking block and the box door, the dustproof plate is locked by the locking block to be rotated and closed, and workers directly observe the inside of the dustproof plate through the observation window without opening the box door, so that time and labor are saved. After the inspection is finished, the dust-proof plate is put down, so that dust prevention can be prevented from falling on the observation window, the visibility of the observation window is further prevented from being reduced, the trouble that people need to scrub is avoided, and the dust-proof plate can also play a role in protecting the observation window from being smashed by foreign matters.
The invention is further provided with: the dustproof plate is characterized in that hinge strips are hinged to two sides of the dustproof plate, a hanging rod is connected between two ends of the hinge strips, a hanging groove for the hanging rod to be clamped in is formed in the inner side of the locking block, and a storage box for storing a notebook is arranged on the inner side of the box door.
Through adopting above-mentioned technical scheme, need record information such as inspection time, inspector, inspection condition on the record book when the inspection is accomplished, and the record book is put in the chamber door inboard, can receive better protection, is difficult for receiving the tide. The dust-proof plate is rotated until the hanging rod is clamped into the hanging groove, and is in a horizontal state basically, and at the moment, the dust-proof plate can be used as a supporting plate for people to write on.
The invention is further provided with: the utility model discloses a window, including observation window, storage box, baffle, storage box, baffle, guide bar, baffle, the observation window both sides all are provided with the guide bar, the guide bar lower extreme is provided with the baffle, the baffle upside is provided with the blotter, the observation window outside lower extreme is provided with the lift groove, the storage box is located the observation window downside.
Through adopting above-mentioned technical scheme, when needs take and put the record book, the finger card is gone into and is carried the draw-in groove and lift the observation window for the observation hole is opened, and people can stretch into the hand from the observation hole and take out or put back the record book, need not to open the chamber door, and is convenient fast. When the observation window is put down, the observation window is buffered by the buffer cushion, and is not easy to break.
The invention is further provided with: two be connected with the horizontal bar between the one side that the deflector strip deviates from the chamber door, the horizontal bar middle part is provided with the locating hole, locating hole department is provided with the deflector strip, deflector strip both ends downside all is connected with the limiting plate.
Through adopting above-mentioned technical scheme, lift up the observation window until its lower extreme flushes with the inner wall of observation hole upper end, push out the locating strip again until being located the observation window downside, and then make the confession observation window receive the hindrance of locating strip and can't move down, relatively fixed, and then be convenient for people take and put the record book.
The invention is further provided with: the storage box comprises a box body, a guide plate is connected to an opening at the upper part of the box body, the distance between the guide plate and a box door is gradually increased from bottom to top, and a lifting notch is arranged below the box body.
By adopting the technical scheme, the record book is convenient to put in and take out.
The invention is further provided with: the protection cover is made of transparent materials, an object placing cavity is formed in the upper side of the protection cover, and a signboard is arranged in the object placing cavity.
By adopting the technical scheme, the signboard is used for identifying the control information of the control button, so that misoperation is avoided.
The invention is further provided with: the box both sides all are provided with a plurality of louvres along vertical interval, the box outside is connected with in the louvre upside and is curved heat dissipation baffle, all be connected with the curb plate between heat dissipation baffle both ends and the box, form the heat dissipation chamber with the louvre intercommunication between heat dissipation baffle and two curb plates, the heat dissipation chamber opening orientation below.
Through adopting above-mentioned technical scheme, the heat dissipation chamber is down, consequently the dust is difficult to get into the box inside from the heat dissipation chamber opening part, and then avoids the inside trouble of piling up the dust and leading to unable normal work of electrical component of box.
The invention is further provided with: the heat dissipation hole department is provided with protector, protector is including being located the fixed frame of heat dissipation chamber opening part, be provided with the dust screen in the fixed frame, it is a plurality of be connected with the fixed strip between the fixed frame homonymy, the box outside is connected with the fixed column, the fixed strip is provided with the rectangular hole that supplies the fixed column to pass, the fixed column deviates from the one end of box and is provided with the draw-in groove, be provided with the card strip in the draw-in groove, card strip end connection has spacing, the fixed strip is connected with spacing post and stopper, spacing post is located the stopper upside.
By adopting the technical scheme, the dust screen can prevent dust from entering the box body on one hand and avoid the trouble of damage caused by small insects climbing into the box body on the other hand; the card strip is pulled out when box heat dissipation demand is higher for spacing deviates from fixed strip and removes, and spacing and then can't block the stopper, and fixed frame moves down until spacing post receives spacing the stopper, thereby accomplishes dust screen and the separation of heat dissipation chamber open-ended, is convenient for dispel the heat fast.
The invention is further provided with: and a reset spring is connected between the clamping strip and the bottom of the clamping groove.
Through adopting above-mentioned technical scheme, extract the card strip after, the card strip can accomplish the reset automatically under reset spring's pulling, labour saving and time saving.
In summary, the invention has the following beneficial effects:
1. by setting the anti-false touch device, the trouble caused by the false touch of a control button by people is avoided;
2. through the arrangement of the dustproof device, the trouble that the observation window needs to be scrubbed is avoided;
3. through protector's setting, avoid dust or little insect to get into the inside trouble that causes the destruction of box from the louvre.
Drawings
FIG. 1 is a schematic structural view of an embodiment;
FIG. 2 is an enlarged schematic view of area A of FIG. 1;
FIG. 3 is a schematic view of the structure of the dust guard in an open state in the embodiment;
FIG. 4 is an enlarged schematic view of region B of FIG. 3;
fig. 5 is a schematic view of the structure of the dust-proof plate used as the support plate in the embodiment;
FIG. 6 is an enlarged schematic view of region C of FIG. 5;
FIG. 7 is a schematic view showing a part of the structure of the inside of the case door in the embodiment;
FIG. 8 is a schematic view of the structure of the protection device in an open state in the embodiment;
fig. 9 is an enlarged schematic view of region D in fig. 8.
Reference numerals illustrate: 1. a case; 11. a heat radiation hole; 12. a heat radiation baffle; 13. a side plate; 2. a door; 21. a connecting column; 22. a connection bump; 23. a limit screw; 24. an observation hole; 25. a guide bar; 26. a stop block; 261. a cushion pad; 27. a cross bar; 271. positioning holes; 28. a positioning strip; 281. a limiting plate; 3. a control button; 4. an anti-false touch device; 41. a protective cover; 411. a storage cavity; 42. a connecting strip; 421. a bar-shaped hole; 422. an arch bridge portion; 43. a locking block; 431. a hanging groove; 44. a signboard; 5. an observation window; 51. a pulling groove; 6. a dust-proof device; 61. a dust-proof plate; 62. a hinge strip; 63. a hanging rod; 7. a storage box; 71. a case body; 72. a guide plate; 73. pulling the notch; 8. a heat dissipation cavity; 9. a protective device; 91. a fixed frame; 92. a dust screen; 93. a fixing strip; 931. a slit hole; 94. fixing the column; 941. a clamping groove; 95. clamping strips; 96. a limit bar; 97. a limit column; 98. a limiting block; 99. and a return spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The control equipment for the smoke prevention and exhaust fan comprises a box body 1, wherein the box body 1 is hinged with a box door 2, four control buttons 3 are arranged on the outer side of the box door 2, and the control buttons 3 are used for controlling the on-off of the smoke prevention and exhaust fan, the on-off of an alarm lamp and the like. Four control buttons 3 are arranged at equal intervals along the horizontal direction, and each control button 3 is provided with an error touch preventing device 4, so that the trouble that the control buttons 3 are accidentally pressed is avoided.
As shown in fig. 2 and 3, the false touch preventing device 4 includes a U-shaped protective cover 41 covering the outer side of the control button 3, and connecting strips 42 are fixedly connected to opposite sides of two ends of the protective cover 41. The two sides of each control button 3 are provided with a connecting column 21 and a connecting lug 22 which are fixedly connected with the box door 2, and the connecting lug 22 is hemispherical and is positioned right above the connecting column 21. The connection bar 42 is provided with a bar hole 421, and the connection post 21 and the connection bump 22 are respectively located at both ends of the bar hole 421, and the protection cover 41 is located outside the control button 3 at this time, so that the control button 3 cannot be pressed. One end of the connecting column 21 penetrating through the bar-shaped hole 421 is connected with a limit screw 23 in a threaded mode, the diameter of the head of the limit screw 23 is larger than the width of the bar-shaped hole 421, and the height of the connecting column 21 is equal to the depth of the bar-shaped hole 421. The connecting strip 42 is limited by the head of the limit screw 23 and cannot be separated from the box door 2, and the error touch preventing device 4 can be detached from the box door 2 after the limit screw 23 is unscrewed, so that the replacement is convenient.
As shown in fig. 3 and 4, the connecting strip 42 arches at one end of the connecting bump 22 to form an arch bridge 422, the arch height of the arch bridge 422 is smaller than the radius of the connecting bump 22, and the connecting strip 42 is made of flexible materials, so that the arch bridge 422 can pass through the connecting bump 22 only by manually applying a pull-down force to the protecting cover 41, and further can slide up and down until the arch bridge 422 is blocked by the connecting screw, and at this time, the protecting cover 41 is dislocated relative to the control button 3, and people can quickly press the control button 3. The protection cover 41 is made of transparent materials, a storage cavity 411 is arranged on the upper side of the protection cover 41, and a signboard 44 is arranged in the storage cavity 411. The identification plate 44 is used for identifying control information of the control button 3, and avoids misoperation. The part of the signboard 44 extends out of the opening of the storage cavity 411, so that people can conveniently take out the signboard 44.
As shown in fig. 2 and 3, the door 2 is provided with a viewing hole 24 at the lower side of the control button 3, a viewing window 5 made of transparent glass is provided at the inner side of the viewing hole 24 of the door 2, and a dust-proof device 6 is provided at the outer side. The dust-proof device 6 includes a dust-proof plate 61 at the observation hole 24, and the upper end of the dust-proof plate 61 is hinged with the door 2. The dust guard 61 is rotated to be opened during inspection, and the inside of the dust guard is directly observed by staff through the observation window 5, so that the box door 2 does not need to be opened, and time and labor are saved. After the inspection is completed, the dust-proof plate 61 is put down, the dust-proof plate 61 can prevent dust from falling on the observation window 5, so that the problem that the visibility of the observation window 5 is reduced and people need to scrub is avoided, and the dust-proof plate 61 can also play a role in protecting the observation window 5 from being smashed by foreign matters.
As shown in fig. 2 and 3, a locking block 43 is fixedly connected to the lower side of the protective cover 41, and a gap exists between the locking block 43 and the door 2 and the dust-proof plate 61 can be clamped in. When the dust-proof plate 61 is rotated to the other side to be tightly attached to the door 2, the protective cover 41 is pulled down, and the dust-proof plate 61 can be clamped between the locking block 43 and the door 2, so that the dust-proof plate 61 is limited by the locking block 43 and cannot be closed.
As shown in fig. 2 and 5, hinge strips 62 are hinged at the middle parts of two sides of the dust-proof plate 61, a hanging rod 63 is fixedly connected between the end parts of the two hinge strips 62, and a hanging groove 431 for the hanging rod 63 to be clamped in is formed in the inner side of the locking block 43. When the protective cover 41 is pulled down to the open state, the dust-proof plate 61 is rotated until the hanging rod 63 is caught in the hanging groove 431, and at this time, the dust-proof plate 61 is perpendicular to the box door 2, so that the dust-proof plate 61 is convenient to be used as a supporting plate for people to place articles or write. The hanging groove 431 is opened higher than the inner bottom thereof, thereby making it difficult for the hanging rod 63 to be separated from the hanging groove 431.
As shown in fig. 5 and 7, a storage box 7 for storing a record book is provided inside the box door 2, and the storage box 7 is located below the observation hole 24. The record book is placed on the inner side of the box door 2 and can be well protected and not easily affected with damp. The storage box 7 comprises a box body 71 fixedly connected with the inner side of the box door 2, and the opening of the box body 71 faces to the right upper side. One side of the box body 71, which is away from the box door 2, is fixedly connected with a guide plate 72 at the opening, and the distance between the guide plate 72 and the box door 2 is gradually increased from bottom to top, so that the record book can be conveniently placed in the box. The middle part below the box body 71 is provided with a lifting notch 73, and a hand can extend into the lifting notch 73 to lift the notebook, so that the notebook can be taken out conveniently.
As shown in fig. 5 and 7, guide bars 25 fixedly connected to the door 2 are provided on both sides of the observation window 5, and the observation window 5 can move up and down along the guide bars 25. The lower end of the guide strip 25 is provided with a stop block 26 fixedly connected with the box door 2, and the upper side of the stop block 26 is fixedly connected with a buffer pad 261 made of rubber. The observation window 5 is located at the observation hole 24 when it is closely attached to the cushion 261. The observation window 5 outside lower extreme is provided with and carries the draw-in groove 51, and the finger card is gone into and is carried draw-in groove 51 and lift up observation window 5 for observation hole 24 is opened, and people can stretch into the hand from observation hole 24 and take out or put back the record book, need not to open chamber door 2, and is convenient fast. When the observation window 5 is put down, the observation window 5 is buffered by the buffer pad 261, and is not easily broken. A transverse bar 27 is fixedly connected between one sides of the two guide bars 25, which are away from the box door 2, a positioning hole 271 is formed in the middle of the transverse bar 27, and a positioning bar 28 is arranged at the positioning hole 271. The lower sides of the two ends of the positioning strip 28 are fixedly connected with limiting plates 281, and the positioning strip 28 can slide along the positioning holes 271 until the limiting plates 281 are clung to the transverse strips 27. Lifting up the observation window 5 until the lower end of the observation window is flush with the inner wall of the upper end of the observation hole 24, pushing the positioning strip 28 outwards until the observation window 5 is positioned at the lower side of the observation window 5, so that the observation window 5 cannot move downwards due to the obstruction of the positioning strip 28, and the observation window is relatively fixed, thereby being convenient for people to take and put a record book.
As shown in fig. 6 and 8, six strip-shaped heat dissipation holes 11 are formed in two sides of the box body 1 at equal intervals in the vertical direction, an arc-shaped heat dissipation baffle 12 is fixedly connected to the outer side of the box body 1 above the heat dissipation holes 11, and side plates 13 are fixedly connected between two ends of the heat dissipation baffle 12 and the box body 1. A heat dissipation cavity 8 communicated with the heat dissipation holes 11 is formed between the heat dissipation baffle 12 and the two side plates 13, and the heat dissipation cavity 8 is opened downwards. Therefore, dust is difficult to enter the box body 1 from the opening of the heat dissipation cavity 8, and the trouble that the electric element cannot work normally due to dust accumulation in the box body 1 is avoided.
As shown in fig. 6 and 8, the heat dissipation hole 11 is provided with a protection device 9, the protection device 9 includes six fixing frames 91 located at the opening of the heat dissipation cavity 8, and a dust screen 92 is fixedly connected in the fixing frames 91. The dustproof net 92 seals the opening of the heat dissipation cavity 8, so that dust can be prevented from entering the box body 1, and the trouble that small insects climb into the box body 1 to cause damage can be avoided. Fixedly connected with and box 1 fixed strip 93 of hugging closely between six fixed frame 91 homonymies, box 1 outside is in the equal fixedly connected with fixed column 94 of fixed strip 93 department, and fixed strip 93 is provided with the rectangular hole 931 that supplies fixed column 94 to pass, consequently fixed strip 93 can slide from top to bottom, and then drives dust screen 92 and reciprocate. The fixed column 94 is provided with square draw-in groove 941 deviating from the one end of box 1, is provided with card strip 95 in the draw-in groove 941, and card strip 95 tip fixedly connected with is rather than perpendicular and be in spacing 96 of horizontality. The fixed strip 93 is in rectangular hole 931 one side that deviates from the fixed block fixedly connected with spacing post 97 and stopper 98, and spacing post 97 length is greater than stopper 98 and is located stopper 98 upside. When the limiting strip 96 is tightly attached to the lower side of the limiting strip 98, the dustproof net 92 seals the opening of the heat dissipation cavity 8, and at the moment, the limiting strip 96 blocks the limiting strip 98 and cannot move downwards. The card strip 95 is pulled out when the heat dissipation demand of the box body 1 is higher for the spacing 96 deviates from the fixed strip 93 and moves, and the spacing 96 can't block the stopper 98, and the fixed frame 91 moves down until the spacing post 97 receives the stop of spacing 96, thereby accomplishes dust screen 92 and the separation of heat dissipation chamber 8 open-ended, is convenient for dispel the heat fast. A return spring 99 is fixedly connected between the clamping strip 95 and the bottom of the clamping groove 941, and when the return spring 99 is in a natural state, the limiting strip 96 is tightly attached to the fixing strip 93. After the clamping strip 95 is pulled out, the clamping strip 95 can automatically reset under the pulling of the reset spring 99, so that time and labor are saved.
The working process comprises the following steps:
when the control button 3 is required to be pressed, the protective cover 41 corresponding to the control button 3 is pulled down forcefully, so that the protective cover 41 and the control button 3 are misplaced; when the operation of the electrical components in the case 1 is to be inspected, the dust-proof plate 61 is turned to an open state, and the protective cover 41 is pulled down until the dust-proof plate 61 is limited by the locking block 43.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (7)
1. The utility model provides a prevent smoke exhaust fan controlgear, includes box (1) and chamber door (2), chamber door (2) outside is provided with a plurality of control button (3), its characterized in that: the control button (3) is provided with an anti-false touch device (4), the anti-false touch device (4) comprises a protective cover (41), connecting strips (42) are connected to two sides of the protective cover (41), connecting columns (21) and connecting lugs (22) are connected to two sides of the control button (3) on the outer side of the box door (2), strip-shaped holes (421) are formed in the connecting columns (21) and the connecting lugs (22) respectively, the connecting strips (42) arch at one ends of the connecting lugs (22) to form arch bridge portions (422), the connecting lugs (22) are hemispherical, and limit screws (23) are connected to one ends of the connecting columns (21) penetrating through the strip-shaped holes (421) in a threaded mode;
the anti-dust box is characterized in that an observation hole (24) is formed in the lower side of the control button (3), an observation window (5) is formed in the inner side of the observation hole (24) of the box door (2), a dust-proof device (6) is arranged on the outer side of the box door, the dust-proof device (6) comprises a dust-proof plate (61), the upper end of the dust-proof plate (61) is hinged to the box door (2), a connecting lug (22) is located right above a connecting column (21), a locking block (43) is fixedly connected to the lower side of the protective cover (41), and a gap exists between the locking block (43) and the box door (2) and is used for the dust-proof plate (61) to be clamped in;
hinge strips (62) are hinged to two sides of the dust-proof plate (61), a hanging rod (63) is connected between the end parts of the two hinge strips (62), a hanging groove (431) for the hanging rod (63) to be clamped in is formed in the inner side of the locking block (43), and a storage box (7) for storing a record book is arranged in the inner side of the box door (2);
the protection cover (41) is made of transparent materials, a storage cavity (411) is formed in the upper side of the protection cover (41), and a signboard (44) is arranged in the storage cavity (411).
2. The smoke prevention and exhaust ventilator control apparatus of claim 1 wherein: guide strips (25) are arranged on two sides of the observation window (5), a stop block (26) is arranged at the lower end of the guide strips (25), a buffer pad (261) is arranged on the upper side of the stop block (26), a lifting groove (51) is formed in the lower end of the outer side of the observation window (5), and the storage box (7) is located at the lower side of the observation window (5).
3. The smoke prevention and exhaust fan control apparatus according to claim 2, wherein: two guide strips (25) deviate from and be connected with horizontal strip (27) between one side of chamber door (2), horizontal strip (27) middle part is provided with locating hole (271), locating hole (271) department is provided with locating strip (28), locating strip (28) both ends downside all is connected with limiting plate (281).
4. The smoke prevention and exhaust ventilator control apparatus of claim 1 wherein: the storage box (7) comprises a box body (71), a guide plate (72) is connected to an opening at the upper part of the box body (71), the distance between the guide plate (72) and the box door (2) is gradually increased from bottom to top, and a lifting notch (73) is formed in the lower part of the box body (71).
5. The smoke prevention and exhaust ventilator control apparatus of claim 1 wherein: the novel heat dissipation box comprises a box body (1), and is characterized in that a plurality of heat dissipation holes (11) are formed in two sides of the box body (1) at intervals vertically, an arc-shaped heat dissipation baffle (12) is connected to the outer side of the box body (1) on the upper side of the heat dissipation holes (11), side plates (13) are connected between two ends of the heat dissipation baffle (12) and the box body (1), a heat dissipation cavity (8) communicated with the heat dissipation holes (11) is formed between the heat dissipation baffle (12) and the two side plates (13), and the opening of the heat dissipation cavity (8) faces downwards.
6. The smoke prevention and exhaust ventilator control apparatus of claim 5 wherein: the utility model discloses a heat dissipation device, including heat dissipation cavity (8), heat dissipation hole (11) department is provided with protector (9), protector (9) are including being located fixed frame (91) of heat dissipation cavity (8) opening part, be provided with dust screen (92) in fixed frame (91), a plurality of be connected with fixed strip (93) between fixed frame (91) homonymy, box (1) outside is connected with fixed column (94), fixed strip (93) are provided with rectangular hole (931) that supply fixed column (94) to pass, the one end that fixed column (94) deviate from box (1) is provided with draw-in groove (941), be provided with draw-in groove (95) in draw-in groove (941), draw-in groove (95) end connection has spacing (96), fixed strip (93) are connected with spacing post (97) and stopper (98), spacing post (97) are located stopper (98) upside.
7. The smoke prevention and exhaust ventilator control apparatus of claim 6 wherein: a return spring (99) is connected between the clamping strip (95) and the bottom of the clamping groove (941).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139086.9A CN109763991B (en) | 2019-02-25 | 2019-02-25 | Prevent exhaust fan controlgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910139086.9A CN109763991B (en) | 2019-02-25 | 2019-02-25 | Prevent exhaust fan controlgear |
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| Publication Number | Publication Date |
|---|---|
| CN109763991A CN109763991A (en) | 2019-05-17 |
| CN109763991B true CN109763991B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910139086.9A Active CN109763991B (en) | 2019-02-25 | 2019-02-25 | Prevent exhaust fan controlgear |
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| CN (1) | CN109763991B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111181029B (en) * | 2020-03-13 | 2021-05-28 | 山东速达电气有限公司 | Protective structure of switch cabinet |
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