Filter screen baffle structure for ventilation pipeline

Abstract

The utility model relates to locomotive ventilation pipeline control equipment technical field, especially a kind of filter screen baffle structure for ventilation pipeline, including mounting bracket, transmission assembly A, blocking plate drive component and transmission assembly B, passageway is set on mounting bracket, filter screen is set in passageway, several rotating shafts are set in passageway at intervals, each rotating shaft is connected with one movable plate respectively, sealing frame is set in passageway;Transmission assembly A is drivingly connected with each rotating shaft;Two blocking plates are slidably arranged on sealing frame, two-way screw is rotatably arranged on sealing frame, two-way screw two sliding shuttles are connected with the blocking plate of corresponding side respectively;Drive component drives each rotating shaft synchronous same direction rotation under working condition;Transmission assembly B is drivingly connected with drive component and two-way screw, to drive two blocking plates synchronous close under the condition that louvre is closed.The device can quickly complete the switch control of locomotive ventilation pipeline, reduce artificial, reduce cost, do not need to replace after installation, it is simple and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of locomotive ventilation pipeline control equipment, and in particular to a filter screen baffle structure for ventilation pipelines. Background Technology

[0002] The filter screens installed at the ventilation duct openings on the locomotive are used for normal ventilation in summer. However, when the ambient temperature is very low, the ventilation needs to be blocked due to the physical characteristics of engine cold start in low-temperature environments, so they are replaced with baffles.

[0003] Currently, the switching control of ventilation ducts is based on manual replacement of baffles. When the temperature changes frequently, manual operation is time-consuming and labor-intensive, so the existing structure needs to be improved. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a filter screen baffle structure for ventilation ducts.

[0005] The technical solution of this utility model is: a filter screen baffle structure for ventilation ducts, including a mounting frame, a channel on the mounting frame, a filter screen on the side of the channel near its air outlet, and a number of rotating shafts spaced apart on the side of the channel near its air inlet. Each rotating shaft is connected to a movable plate so that a louver is formed by multiple mutually cooperating movable plates, and a sealing frame for sealing the side gaps of the louver is provided in the channel.

[0006] Transmission component A is mounted on the mounting bracket and drives and connects to each rotating shaft.

[0007] There are two baffles, both of which are slidably mounted on the sealing frame. A two-way screw is rotatably mounted on the sealing frame, and each end of the two-way screw is connected to a shuttle. The two shuttles are connected to the baffles on the corresponding sides.

[0008] The drive component drives each rotating shaft to rotate synchronously and in the same direction during operation, thereby opening or closing the louvers.

[0009] And transmission component B, which is connected to the drive component and the bidirectional lead screw, so that when the louver is closed, the two blocking plates move closer to each other synchronously and block and reinforce the louver. After the two blocking plates move away from each other synchronously and reset, the blocking plates remain stationary, while the louver gradually opens.

[0010] Preferably, the mounting bracket is provided with a slid groove that communicates with the channel, a slide frame that is slidably connected to the slid groove is provided in the slid groove, and the filter screen is provided on the slide frame.

[0011] Preferably, a slot is provided on the inner wall of the slide, a tensioning component is provided on the slide, the movable end of the tensioning component is connected to the slider A, the slider A is slidably connected to the slide, and a locking block is provided on the slide, which is locked into the slot to limit the slide through the cooperation between the locking block and the slot.

[0012] Preferably, the transmission component A includes gears A and racks. The number of gears A is the same as the number of rotating shafts. Each gear A is coaxially connected to the rotating shaft on the corresponding side. The rack is slidably mounted on the mounting bracket and meshes with each gear A.

[0013] Preferably, the drive assembly includes a hollow shaft, gear B, and a motor. The hollow shaft is rotatably connected to the mounting bracket, gear B is coaxially connected to the hollow shaft, gear B meshes with one of the gears A, the motor body is connected to the mounting bracket, and the output end of the motor is connected to the hollow shaft via a coupling.

[0014] Preferably, a limiting groove communicating with the inner cavity is provided on the hollow shaft along its height direction, a slider B is provided inside the hollow shaft along its height direction and is slidably connected to it, a gear B is connected to the slider B, and a lead screw is fixedly provided on the mounting bracket. The lead screw is inserted into the hollow shaft and is rotatably connected to it on the same axis. The lead screw passes through the slider B and is helically connected to it.

[0015] Preferably, the transmission component B includes a gear C, which is coaxially connected to a two-way lead screw. When the louver is fully closed, the gear B disengages from the gear A and engages with the gear C. When the gear B rises to the state of disengaging from the gear C, it re-engages with the gear A.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The detachable carriage and filter structure facilitates easy filter replacement by operators. The elastic sliding locking mechanism on the carriage allows for sliding limit control, preventing the carriage from detaching from the mounting frame due to vehicle vibration. This structure is also simple and convenient to assemble and disassemble. A louvered structure composed of multiple movable plates, with a gear A and a rack meshing with all gears A on each shaft, allows the rotation of one gear A to drive all the other gears A and movable plates synchronously. A baffle plate connected by a bidirectional screw, with a gear C on the screw, allows gear B to rise or fall along the height of the hollow shaft during rotation, switching between meshing with gears A and C. The baffle plate reinforces the movable plates when they are closed, improving their resistance to wind impact. A single drive unit can simultaneously adjust the louvers and baffle plate, saving energy and further enhancing the equipment's ease of operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 This is a structural diagram of the mounting bracket;

[0020] Figure 3 This is a schematic diagram of the connection structure of the various components on the carriage.

[0021] Figure 4 This is a schematic diagram showing the connection structure between the baffle plate, the sealing frame, the movable plate, and the drive assembly.

[0022] Figure 5 This is a schematic diagram of the drive component.

[0023] Reference numerals: 1. Mounting bracket; 101. Channel; 102. Slide groove; 103. Slot; 104. Storage slot; 2. Carriage; 3. Filter screen; 4. Tensioning assembly; 5. Slider A; 6. Locking block; 7. Rotating shaft; 8. Movable plate; 9. Gear A; 10. Rack; 11. Hollow shaft; 111. Limiting groove; 12. Gear B; 13. Motor; 14. Sealing frame; 15. Fixing plate; 16. Baffle plate; 17. Two-way lead screw; 18. Gear C; 19. Lead screw; 20. Slider B; 21. Air guide cover. Detailed Implementation

[0024] Example 1

[0025] like Figures 1-5As shown, the present invention proposes a filter screen baffle structure for ventilation ducts, including a mounting frame 1, a transmission component A, a baffle plate 16, a drive component, and a transmission component B. The mounting frame 1 is provided with a channel 101, and a filter screen 3 is provided on the side of the channel 101 near its air outlet. Several rotating shafts 7 are spaced apart on the side of the channel 101 near its air inlet, and each rotating shaft 7 is connected to a movable plate 8 to form a louver through multiple mutually cooperating movable plates 8. A sealing frame 14 for sealing the side gaps of the louver is provided in the channel 101. An air guide hood 21 is provided on the mounting frame 1 and is connected to the ventilation duct of the locomotive. The transmission component A is mounted on the mounting frame 1 and drives and connects to each rotating shaft 7. The transmission component A includes gears A9 and racks 10. The number of gears A9 is the same as the number of rotating shafts 7. Each gear A9 is coaxially connected to the rotating shaft 7 on the corresponding side. The rack 10 is slidably mounted on the mounting frame 1 and meshes with each gear A9. There are two baffle plates 16. Both baffle plates 16 are slidably mounted on the sealing frame 14. Two fixed plates 15 are spaced apart along the height direction on the sealing frame 14. The two baffle plates 16 are located between the two fixed plates 15. A guide rod is set between the two fixed plates 15. The guide rod passes vertically through the baffle plate 16 and is slidably connected to it. At the same time, a storage groove 104 is set on the upper wall and lower wall of the channel 101 on the mounting frame 1. The two baffle plates 16 are inserted into the storage grooves 104 on the corresponding side and are slidably connected to their inner walls. A bidirectional lead screw 17 is rotatably mounted on the sealing frame 14. Each end of the bidirectional lead screw 17 is connected to a sliding shuttle, and the two sliding shuttles are respectively connected to the corresponding side baffles 16. In the working state, the drive assembly drives each rotating shaft 7 to rotate synchronously and in the same direction. The drive assembly includes a hollow shaft 11, a gear B12, and a motor 13. The hollow shaft 11 is rotatably connected to the mounting frame 1. The gear B12 is coaxially connected to the hollow shaft 11 and slides along its height direction. The gear B12 meshes with one of the gears A9. The body of the motor 13 is connected to the mounting frame 1. The output end of the motor 13 is connected to the hollow shaft 11 through a coupling. A limiting groove 111 communicating with its inner cavity is provided on the hollow shaft 11 along its height direction. A slider B20 is provided inside the hollow shaft 11 and slidably connected to it along its height direction. The gear B12 is connected to the slider B20. A lead screw 19 is fixedly mounted on the mounting frame 1. The lead screw 19 is inserted into the hollow shaft 11 and rotatably connected to it coaxially. The lead screw 19 passes through the slider B20 and is helically connected to it. Transmission component B is connected to drive component and double-acting lead screw 17. Transmission component B includes gear C18, which is coaxially connected to double-acting lead screw 17. Gear B12 disengages from gear A9 and meshes with gear C18 when the louver is fully closed. Gear B12 re-engages with gear A9 when it rises to disengage from gear C18. This drives two blocking plates 16 to move closer to the louver in the closed state and reinforce it. After the two blocking plates 16 move away from the louver and reset, the blocking plates 16 remain stationary while the louver gradually opens.

[0026] In this embodiment, the cost reduction device is installed on the locomotive, the air guide shroud 21 is connected to the locomotive's ventilation duct, and the device is powered on. When the ambient temperature is low, the louvers need to be closed to improve the locomotive's starting efficiency. The operator starts the motor 13 and rotates it in the forward direction. The motor 13 drives the hollow shaft 11 to rotate in the forward direction, which in turn drives the gear B12 to rotate. Since the gear B12 is engaged with one of the gears A9, the rotating gear B12 drives the gear A9 to rotate, which in turn drives the rack 10 to slide. In turn, the rack 10 drives all the other rotating shafts 7 to rotate synchronously, and the louvers gradually close. Since the hollow shaft 11 drives the gear B12 to rotate, and the gear B12 is screwed to the lead screw 19 through the slider B20, the gear B12 rotates and lowers its height. When the gear B12 just disengages from the gear A9, the louvers are just closed. Then the gear B12 switches to engage with the gear C18. The gear B12 drives the gear C18 to rotate, which in turn drives the bidirectional lead screw 17 to rotate. The bidirectional lead screw 17 rotates and drives the two baffles 16 to move closer and block the louvers, improving their ability to resist wind impact. When the ambient temperature is suitable and the locomotive requires ventilation, the operator starts the motor 13 to rotate in reverse. The motor 13 drives the hollow shaft 11 to rotate in reverse, which in turn drives the gear C18 and the double-acting screw 17 to rotate in reverse through the gear B12. The double-acting screw 17 drives the two baffles 16 to move away from the storage slot 104 in a synchronized manner. When the baffles 16 are completely stored in the storage slot 104, the gear B12 gradually increases in height and disengages from the gear C18 and meshes with the gear A9. The gear B12 drives the gear A9 to rotate in reverse until all the movable plates are flipped in a synchronized manner and the louvers are opened. Outside air is allowed to enter the mounting frame 1 again. When the outside air circulates in the channel, it is filtered by the filter screen 3 to remove impurities and dust.

[0027] Example 2

[0028] like Figures 1-3 As shown, the present invention proposes a filter screen baffle structure for ventilation ducts. Compared with Embodiment 1, the mounting bracket 1 is provided with a sliding groove 102 communicating with the channel 101. A slide frame 2 is provided in the sliding groove 102 and slidably connected thereto. The filter screen 3 is provided on the slide frame 2. A slot 103 is provided on the inner wall of the sliding groove 102. A tensioning component 4 is provided on the slide frame 2. The movable end of the tensioning component 4 is connected to a slider A5. The slider A5 is slidably connected to the slide frame 2. A locking block 6 is provided on the slide frame 2. The locking block 6 is locked into the slot 103. The tensioning component 4 includes, but is not limited to, permanent magnet A and permanent magnet B. Permanent magnet A is connected to the slide frame 2, and permanent magnet B is connected to the slider A5. Permanent magnet A and permanent magnet B face each other, and the magnetic poles of the adjacent ends of permanent magnet A and permanent magnet B are the same. At the same time, the tension between permanent magnet A and permanent magnet B is between 1-5N, so as to limit the slide frame 2 through the cooperation of the locking block 6 and the slot 103.

[0029] In this embodiment, when the filter screen 3 needs to be replaced, simply slide the slider A5 to make the locking block 6 slide out of the locking slot 103 to release the sliding restriction of the slide 2, thereby removing the slide 2 from the mounting bracket 1, which makes it easier to replace the filter screen 3.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A filter screen baffle structure for ventilation ducts, characterized in that, include: Mounting bracket (1), mounting bracket (1) is provided with channel (101), filter screen (3) is provided on the side of channel (101) near its air outlet, and several rotating shafts (7) are provided at intervals on the side of channel (101) near its air inlet. Each rotating shaft (7) is connected to a movable plate (8) so as to form a louver through multiple mutually cooperating movable plates (8). A sealing frame (14) for sealing the side gaps of the louver is provided in the channel (101). Transmission component A is mounted on the mounting bracket (1) and drives and connects each rotating shaft (7); There are two baffle plates (16). Both baffle plates (16) are slidably set on the sealing frame (14). A two-way screw rod (17) is rotatably set on the sealing frame (14). A shuttle is connected to each end of the two-way screw rod (17). The two shuttles are connected to the baffle plates (16) on the corresponding sides respectively. The drive component drives each rotating shaft (7) to rotate synchronously and in the same direction in the working state, so as to realize the opening or closing of the louvers; And transmission component B, which is connected to drive component and bidirectional lead screw (17) to drive two blocking plates (16) to approach synchronously and block and reinforce the louver when the louver is closed, and after the two blocking plates (16) move away synchronously and reset, the blocking plates (16) remain stationary while the louver gradually opens.

2. The filter screen baffle structure for ventilation ducts according to claim 1, characterized in that, The mounting bracket (1) is provided with a slide groove (102) that communicates with the channel (101), and a slide frame (2) that is slidably connected to it is provided in the slide groove (102), and the filter screen (3) is provided on the slide frame (2).

3. The filter screen baffle structure for ventilation ducts according to claim 2, characterized in that, A slot (103) is provided on the inner wall of the slide (102), and a tensioning component (4) is provided on the slide (2). The movable end of the tensioning component (4) is connected to the slider A (5). The slider A (5) is slidably connected to the slide (2), and a locking block (6) is provided on the slide (2). The locking block (6) is inserted into the slot (103) so as to limit the slide (2) through the cooperation between the locking block (6) and the slot (103).

4. The filter screen baffle structure for ventilation ducts according to claim 1, characterized in that, The transmission assembly A includes gears A (9) and racks (10). The number of gears A (9) is the same as the number of shafts (7). Each gear A (9) is coaxially connected to the shaft (7) on the corresponding side. The rack (10) is slidably mounted on the mounting bracket (1). The rack (10) meshes with each gear A (9).

5. The filter screen baffle structure for ventilation ducts according to claim 4, characterized in that, The drive assembly includes a hollow shaft (11), a gear B (12), and a motor (13). The hollow shaft (11) is rotatably connected to the mounting bracket (1). The gear B (12) is coaxially connected to the hollow shaft (11). The gear B (12) meshes with one of the gears A (9). The body of the motor (13) is connected to the mounting bracket (1). The output end of the motor (13) is connected to the hollow shaft (11) through a coupling.

6. The filter screen baffle structure for ventilation ducts according to claim 5, characterized in that, A limiting groove (111) communicating with its inner cavity is provided on the hollow shaft (11) along its height direction. A slider B (20) is provided in the hollow shaft (11) along its height direction and is slidably connected to it. A gear B (12) is connected to the slider B (20). A lead screw (19) is fixedly provided on the mounting bracket (1). The lead screw (19) is inserted into the hollow shaft (11) and is coaxially rotatably connected to it. The lead screw (19) passes through the slider B (20) and is helically connected to it.

7. A filter screen baffle structure for ventilation ducts according to claim 6, characterized in that, The transmission assembly B includes gear C (18), which is coaxially connected to a two-way lead screw (17). Gear B (12) disengages from gear A (9) and meshes with gear C (18) when the louver is fully closed. Gear B (12) re-engages with gear A (9) when it rises to disengage from gear C (18).

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