Ventilation device for underground fire engineering

Abstract

The utility model discloses an underground fire-fighting engineering ventilation device which comprises a ventilation pipeline, an air inducing device used for inducing air is arranged at the lower end in the ventilation pipeline, and the underground fire-fighting engineering ventilation device further comprises a conversion assembly. The conversion assembly comprises a plugging ball, a stop lever and an inclined table, symmetrically-distributed branch openings are formed in the left end and the right end of the outer arc face of the ventilation pipeline, branch pipes are arranged between every two vertically-adjacent branch openings, the two branch pipes are arranged in a vertically-staggered mode, separation nets are arranged in the two branch pipes, the adjustable plugging ball is arranged in the ventilation pipeline, and the stop lever is arranged on the upper portion and the lower portion of the ventilation pipeline. The left end and the right end of the blocking ball are each provided with a blocking rod, the left side and the right side of the inner arc face of the ventilation pipeline are each provided with an inclined table, the two inclined tables are symmetrically arranged in the vertical direction, and the blocking rods are matched with the vertically-adjacent inclined tables. And the underground fire engineering ventilation device is ensured to play a ventilation role all the time.

Description

Technical Field

[0001] This utility model relates to the field of fire protection engineering technology, specifically to a ventilation device for underground fire protection engineering. Background Technology

[0002] In the process of modern urban construction, the functions of underground spaces are becoming increasingly diverse. Underground parking lots, shopping malls, and various underground facilities are closely related to people's daily lives. The ventilation system of these underground places plays a key role in maintaining good air quality. It is not only related to people's comfort when they are active in it, but also closely related to their health. The mesh in the ventilation device can effectively block dust and debris, preventing them from entering the ventilation system and affecting air quality.

[0003] Currently, common ventilation devices for underground fire protection engineering have significant shortcomings in dealing with the problem of cleaning the mesh screen. Most ventilation devices require stopping the entire ventilation system when cleaning the mesh screen. This is because their structural design makes it impossible to carry out the mesh screen cleaning operation and the ventilation process simultaneously. Once cleaning is carried out, the airflow in the ventilation duct will be blocked, and stopping ventilation will cause the air in the underground space to not circulate normally. Therefore, we propose a ventilation device for underground fire protection engineering. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a ventilation device for underground fire protection engineering that allows air to circulate normally even when the mesh is being cleaned, thus effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation device for underground fire protection engineering, including a ventilation duct, wherein the lower end of the ventilation duct is provided with an air-guiding device for air intake, and also includes a conversion component;

[0006] The conversion component includes a blocking ball, a stop bar, and a ramp. The outer arc surface of the ventilation duct has symmetrically distributed branch openings at both ends. A branch pipe is provided between two adjacent branch openings, and the two branch pipes are staggered vertically. A mesh is provided inside the two branch pipes. An adjustable blocking ball is provided inside the ventilation duct. A stop bar is provided at both ends of the blocking ball. Ramps are provided on both sides of the inner arc surface of the ventilation duct, and the two ramps are symmetrically arranged vertically. The stop bars are configured to cooperate with the adjacent ramps. The blocking ball is configured to cooperate with the two branch pipes.

[0007] The ventilation duct is equipped with cleaning components at both ends for cleaning the mesh. When cleaning the mesh, air can still circulate through the unblocked branch pipes, ensuring that the ventilation device of the underground fire protection project can always play its ventilation role.

[0008] Furthermore, a control switch assembly is placed on the right side of the ventilation duct, and the input end of the control switch assembly is electrically connected to an external power source for stable control.

[0009] Furthermore, the conversion assembly also includes a slide rail, a transverse slide rail, a perforated mounting plate, and an electric cylinder. The rear side of the inner arc surface of the ventilation duct is provided with a slide rail, and a transverse slide rail is slidably connected inside the slide rail. A sealing ball is slidably connected inside the transverse slide rail via a guide rod. An electric cylinder is installed at the upper end of the ventilation duct via a perforated mounting plate. The telescopic end of the electric cylinder passes through the middle of the perforated mounting plate and is fixedly connected to the upper side of the transverse slide rail. The input end of the electric cylinder is electrically connected to the output end of the control switch group for stable driving.

[0010] Furthermore, the cleaning assembly includes tracks and pipe doors. Each side of the outer arc surface of the branch pipe away from the center of the ventilation duct has a cleaning port. Tracks are provided on both the front and rear sides of the outer arc surface of the branch pipe. Pipe doors are slidably connected between two adjacent tracks to facilitate cleaning of the mesh.

[0011] Furthermore, the cleaning assembly includes an installation chamber, a lead screw, and a motor. Installation chambers are provided at both ends of the ventilation duct. A lead screw is rotatably connected to the top wall of each installation chamber. The ends of the two duct doors furthest from the center of the ventilation duct are threadedly connected to the adjacent lead screw on the upper side. A motor is installed on the upper side of each installation chamber. The output shaft of each motor is fixedly connected to the center of the upper end face of the adjacent lead screw on the lower side. The input end of each motor is electrically connected to the output end of the control switch group to facilitate cleaning of the screen.

[0012] Furthermore, the cleaning assembly includes a cleaning frame, a sponge, a motor, and a second electric cylinder. Symmetrically distributed guide columns are provided on the side of the installation chamber away from the center of the ventilation duct. A cleaning frame is slidably connected between two adjacent guide columns. A sponge is rotatably connected to the top wall of each cleaning frame via a rotating shaft. A dust collection bin is provided on the bottom wall of each cleaning frame. A motor is installed on the upper side of each cleaning frame, and the output shaft of each motor is fixedly connected to the center of the upper end face of the adjacent rotating shaft on the lower side. A second electric cylinder is installed on the side of the installation chamber away from the center of the ventilation duct. The telescopic end of the second electric cylinder is fixedly connected to the middle of the adjacent cleaning frame on the inner side. The input ends of both the motor and the second electric cylinder are electrically connected to the output end of a control switch group, facilitating the cleaning of the screen.

[0013] Furthermore, the air-expelling device is a duct fan, which is installed inside the lower end of the ventilation duct. The input end of the duct fan is electrically connected to the output end of the control switch group for ventilation.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this underground fire protection engineering ventilation device has the following advantages:

[0015] When cleaning the mesh screen in the ventilation system of an underground fire protection project, the electric cylinder one is activated by the control switch group. The electric cylinder one pushes the horizontal slide rail to move along the slide rail, which in turn drives the sealing ball to move. Due to the cooperation of the stop bar and the inclined platform, the sealing ball can accurately move to the position of the branch pipe where the mesh screen to be cleaned is located and block the branch pipe. At the same time, the other branch pipe is in a conductive state, the exhaust fan continues to operate, and air can still circulate through the unblocked branch pipe, ensuring that the ventilation system of the underground fire protection project can play a ventilation role at all times. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-section of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the upper part of the present invention in plan view;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention;

[0020] Figure 5 This is a partial cross-sectional view of the right part of the cleaning component of this utility model;

[0021] Figure 6 This is a partial cross-sectional structural diagram of the cleaning component of this utility model.

[0022] In the diagram: 1. Ventilation duct, 2. Conversion assembly, 21. Longitudinal slide rail, 22. Transverse slide rail, 23. Sealing ball, 24. Stop bar, 25. Inclined platform, 26. Hollowed-out mounting plate, 27. Electric cylinder one, 3. Cleaning assembly, 31. Installation compartment, 32. Cleaning rack, 33. Sponge wiper, 34. Motor, 35. Electric cylinder two, 36. Track, 37. Pipe door, 38. Lead screw, 39. Motor, 4. Branch pipe, 5. Partition net, 6. Drainage fan, 7. Control switch group, 8. Guide slide column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6This embodiment provides a technical solution: an underground fire protection engineering ventilation device, including a ventilation duct 1, a control switch group 7 placed on the right side of the ventilation duct 1, the input end of the control switch group 7 being electrically connected to an external power source, and an air-guiding device for air intake provided at the lower end of the interior of the ventilation duct 1, the air-guiding device being a duct fan 6, the duct fan 6 being installed at the lower end of the interior of the ventilation duct 1, the input end of the duct fan 6 being electrically connected to the output end of the control switch group 7. First, the ventilation duct 1 is installed at the location of use, then the external power source is connected through the control switch group 7, the duct fan 6 is started, and air is introduced into the ventilation duct 1 to achieve the ventilation and air exchange function, facilitating ventilation, and also includes a conversion component 2;

[0025] Conversion component 2 includes a blocking ball 23, a stop bar 24, and a ramp 25. Symmetrically distributed branch openings are provided at both ends of the outer arc surface of the ventilation duct 1. A branch pipe 4 is provided between two adjacent branch openings, with the two branch pipes 4 staggered vertically. A mesh 5 is provided inside each of the two branch pipes 4. An adjustable blocking ball 23 is provided inside the ventilation duct 1. Conversion component 2 also includes a slide rail 21, a transverse slide rail 22, a perforated mounting plate 26, and an electric cylinder 27. A slide rail 21 is provided on the rear side of the inner arc surface of the ventilation duct 1. A transverse slide rail 22 is slidably connected inside the slide rail 21. The interior of the ventilation duct 1 is slidably connected to a sealing ball 23 via a guide rod. An electric cylinder 27 is installed at the upper end of the ventilation duct 1 via a hollow mounting plate 26. The telescopic end of the electric cylinder 27 passes through the middle of the hollow mounting plate 26 and is fixedly connected to the upper side of the transverse slide rail 22. The input end of the electric cylinder 27 is electrically connected to the output end of the control switch group 7. Both ends of the sealing ball 23 are provided with a stop bar 24. The inner arc surface of the ventilation duct 1 is provided with inclined platforms 25 on both the left and right sides. The two inclined platforms 25 are symmetrically arranged vertically. The stop bars 24 are all configured to cooperate with the adjacent inclined platforms 25. The sealing ball 23 is configured to cooperate with the two branch pipes 4.

[0026] The ventilation duct 1 is equipped with cleaning components 3 for cleaning the mesh screen 5 at both ends. The cleaning components 3 include tracks 36 and pipe doors 37. The outer arc surface of the branch pipe 4 is provided with a cleaning port on the side away from the center of the ventilation duct 1. Tracks 36 are provided on both the front and rear sides of the outer arc surface of the branch pipe 4. Pipe doors 37 are slidably connected between two adjacent tracks 36. The cleaning components 3 include an installation chamber 31, a screw rod 38, and a motor 39. Installation chambers 31 are provided at both ends of the ventilation duct 1. Screw rods 38 are rotatably connected to the top wall of the installation chambers 31. The ends of the two pipe doors 37 away from the center of the ventilation duct 1 are threadedly connected to the upper adjacent screw rods 38. Motors 39 are installed on the upper side of the installation chambers 31. The output shaft of the motors 39 is adjacent to the lower side. The upper end of the lead screw 38 is fixedly connected to the center. The input end of the motor 39 is electrically connected to the output end of the control switch group 7. The cleaning assembly 3 includes a cleaning frame 32, a sponge 33, a motor 34, and an electric cylinder 35. The side of the installation chamber 31 away from the center of the ventilation duct 1 is provided with symmetrically distributed guide slide columns 8. The cleaning frame 32 is slidably connected between two adjacent guide slide columns 8. The top wall of the cleaning frame 32 is rotatably connected to the sponge 33 through a rotating shaft. The bottom wall of the cleaning frame 32 is provided with a dust collection bin (the worker can set a collection door on the front side wall of the installation chamber 31 and collect the dust inside the dust collection bin by opening the collection door). The upper side of the cleaning frame 32 is equipped with a motor 34. The output shaft of the motor 34 is connected to the upper end of the adjacent rotating shaft on the lower side. The installation chamber 31 is fixedly connected at the center. Electric cylinders 35 are installed on the side of the installation chamber 31 away from the center of the ventilation duct 1. The telescopic ends of electric cylinders 35 are fixedly connected to the middle of the adjacent cleaning frame 32 on the inner side. The input ends of motor 34 and electric cylinders 35 are electrically connected to the output end of control switch group 7. Initially, the right end of the blocking ball 23 blocks the upper branch opening of the right side branch pipe 4, and air flows through the left side branch pipe 4 (its internal mesh 5 intercepts dust and other impurities). After a period of time, the left side mesh 5 needs to be cleaned (workers install both installation chambers 31 simultaneously at the ventilation point using the installation frame). At this time, the worker controls switch group 7 to start electric cylinder 27. The telescopic end of electric cylinder 27 extends and retracts, driving the transverse slide rail 22 to slide within the slide rail 21. The movement causes the sealing ball 23 to move downwards. Under the current branch opening's constraint, the sealing ball 23 moves downwards while gradually moving to the left. As it continues to move downwards, the stop bar 24 on the right side of the sealing ball 23 contacts the lower inclined platform 25 and slides along its slope. This causes the sealing ball 23 to move to the left and enter the upper branch opening of the left branch pipe 4. Air can then flow through the right branch pipe 4. Next, the worker starts the left-side motor 39, which drives the left-side lead screw 38 to rotate. The rotation of the lead screw 38 causes the left-side pipe door 37 to slide open the cleaning port on the left-side track 36. The control switch group 7 then starts the electric cylinder 35. The telescopic end of the electric cylinder 35 pushes the cleaning frame 32 to slide on the guide slide column 8.Bring the sponge 33 close to the screen 5, then control the motor 34 to start. The motor 34 drives the sponge 33 to rotate, wiping and cleaning the screen 5. The cleaned dust falls into the dust collection bin on the bottom wall of the cleaning frame 32. After cleaning, reverse the operation of each component to close the cleaning port, completing the cleaning of the screen 5. This facilitates cleaning the screen 5 without affecting air circulation.

[0027] The working principle of the ventilation device for underground fire protection engineering provided by this utility model is as follows: First, the ventilation duct 1 is installed at the location of use. Then, the external power supply is connected through the control switch group 7, and the duct fan 6 is started to introduce air into the ventilation duct 1 to achieve ventilation. In the initial state, the right end of the blocking ball 23 is blocked inside the upper branch port of the right branch pipe 4, and the air flows through the left branch pipe 4 (the internal mesh 5 will intercept dust and other impurities). After a period of time, the left mesh 5 needs to be cleaned (the worker installs the two installation chambers 31 at the ventilation point simultaneously using the installation frame). At this time, the worker controls the switch group 7 to start the electric cylinder 27. The telescopic end of the electric cylinder 27 extends and retracts, driving the transverse slide rail 22 to slide in the slide rail 21, thereby driving the blocking ball 23 to move downward. At this time, the blocking ball 23, under the restriction of the current branch port, moves downward and gradually to the left. Then the blocking ball 23 continues to move downward. As the ball moves downwards, when the stop bar 24 on the right side of the sealing ball 23 contacts the lower inclined platform 25 and slides along its inclined surface, the sealing ball 23 will move to the left and enter the upper branch port of the left branch pipe 4. At this time, air can flow from the right branch pipe 4. Then, the worker operates the left motor 39 to start, and the motor 39 drives the left lead screw 38 to rotate. The rotation of the lead screw 38 causes the left pipe door 37 to slide on the left track 36 to open the cleaning port. The control switch group 7 controls the electric cylinder 35 to start. The telescopic end of the electric cylinder 35 pushes the cleaning frame 32 to slide on the guide slide column 8, so that the sponge wiper 33 is close to the screen 5. Then, the control switch group 7 controls the motor 34 to start, and the motor 34 drives the sponge wiper 33 to rotate to wipe and clean the screen 5. The dust that is cleaned off falls into the dust collection bin on the bottom wall of the cleaning frame 32. After cleaning is completed, the operation of each component is reversed to close the cleaning port and complete the cleaning work of the screen 5.

[0028] It is worth noting that, in the above embodiments, the electric cylinder 27 can be the UDC100 series, the motor 34 can be the MSMA042A1H model, the electric cylinder 35 can be the HLD series electric cylinder, the motor 39 can be the SIMOTICSS-1FL6 series servo motor, and the exhaust fan 6 can be the ZWBLDC12060H model. The control switch group 7 is provided with control buttons that correspond one-to-one with the electric cylinder 27, the motor 34, the electric cylinder 35, the motor 39, and the exhaust fan 6 and are used to control their switching.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An underground fire engineering ventilation device, comprising a ventilation duct (1), the inner lower end of the ventilation duct (1) is provided with an air inlet device for air inlet, characterized in that: Also include conversion components (2); The conversion component (2) comprises a blocking ball (23), a stop lever (24) and an inclined table (25), the outer arc surface of the ventilation duct (1) is provided with symmetrically distributed branch ports at the left and right ends, branch pipes (4) are arranged between two adjacent branch ports, the two branch pipes (4) are arranged in a staggered manner, the inside of the two branch pipes (4) is provided with a screen (5), the inside of the ventilation duct (1) is provided with an adjustable blocking ball (23), the left and right ends of the blocking ball (23) are provided with stop levers (24), the left and right sides of the inner arc surface of the ventilation duct (1) are provided with inclined tables (25), the two inclined tables (25) are symmetrically arranged, the stop levers (24) are arranged in cooperation with the adjacent inclined tables (25) above and below, and the blocking ball (23) is arranged in cooperation with the two branch pipes (4). Wherein: the left and right ends of the ventilation duct (1) are provided with cleaning components (3) for cleaning the screen (5).

2. An underground fire engineering ventilation device according to claim 1, wherein: The right side of the ventilation duct (1) is placed with a control switch group (7), and the input end of the control switch group (7) is electrically connected with an external power supply.

3. An underground fire engineering ventilation device according to claim 2, wherein: The conversion component (2) further comprises a sliding rail (21), a transverse sliding rail (22), a hollow mounting plate (26) and an electric cylinder one (27), the rear side of the inner arc surface of the ventilation duct (1) is provided with a sliding rail (21), the inside of the sliding rail (21) is slidably connected with a transverse sliding rail (22), the inside of the transverse sliding rail (22) is slidably connected with a blocking ball (23) through a guide rod, the upper end of the inside of the ventilation duct (1) is provided with an electric cylinder one (27) through a hollow mounting plate (26), the telescopic end of the electric cylinder one (27) penetrates the middle part of the hollow mounting plate (26) and is fixedly connected with the upper side of the transverse sliding rail (22), and the input end of the electric cylinder one (27) is electrically connected with the output end of the control switch group (7).

4. An underground fire engineering ventilation device according to claim 2, wherein: The cleaning component (3) comprises a track (36) and a duct door (37), the outer arc surface of the branch pipe (4) away from the center of the ventilation duct (1) is provided with a cleaning port, the front and rear sides of the outer arc surface of the branch pipe (4) are provided with tracks (36), and the two front and rear adjacent tracks (36) are slidably connected with a duct door (37).

5. An underground fire engineering ventilation device according to claim 2, wherein: The cleaning component (3) comprises an installation bin (31), a lead screw (38) and a motor (39), the left and right ends of the ventilation duct (1) are provided with installation bins (31), the top wall of the installation bin (31) is rotatably connected with a lead screw (38), one end of the two duct doors (37) away from the center of the ventilation duct (1) is threadedly connected with the upper adjacent lead screw (38), the upper side of the installation bin (31) is provided with a motor (39), the output shaft of the motor (39) is fixedly connected with the upper end surface center of the lower adjacent lead screw (38), and the input end of the motor (39) is electrically connected with the output end of the control switch group (7).

6. An underground fire engineering ventilation device according to claim 5, wherein: The cleaning assembly (3) comprises a cleaning frame (32), a sponge (33), a motor (34) and an electric cylinder two (35), the inside of the installation bin (31) is provided with symmetrically distributed guide slide columns (8) away from one side of the center of the ventilation duct (1), two adjacent guide slide columns (8) are slidably connected with the cleaning frame (32), the top wall of the cleaning frame (32) is rotatably connected with the sponge (33) through a rotating shaft, the bottom wall of the cleaning frame (32) is provided with an ash collecting bin, the upper side of the cleaning frame (32) is provided with the motor (34), the output shaft of the motor (34) is fixedly connected with the center of the upper end face of the adjacent rotating shaft, the inside of the installation bin (31) is provided with the electric cylinder two (35) away from one side of the center of the ventilation duct (1), the telescopic end of the electric cylinder two (35) is fixedly connected with the middle part of the adjacent cleaning frame (32) on the inside, and the input ends of the motor (34) and the electric cylinder two (35) are electrically connected with the output end of the control switch group (7).

7. An underground fire fighting engineering ventilation device according to claim 2, characterized in that: The air guiding device is a flow guiding fan (6), the flow guiding fan (6) is installed at the inside lower end of the ventilation duct (1), and the input end of the flow guiding fan (6) is electrically connected with the output end of the control switch group (7).

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