Roadway ventilation device for coal mining of coal mine

Abstract

The utility model discloses a roadway ventilation device for coal mining in a coal mine, and relates to the technical field of coal mine ventilation devices. The ventilation device comprises a supporting seat and a ventilator, U-shaped supporting frames are symmetrically and fixedly connected to the top of the supporting seat, limiting clamping grooves are symmetrically formed in the two ends of each U-shaped supporting frame, and the ventilator is clamped in the U-shaped supporting frames. The two connecting plates are driven to be away from each other synchronously by rotating the double-thread screw anticlockwise, then the two L-shaped fixing supports can be driven to be away from each other synchronously through the connecting plates, the fixing pins are moved out of the fixing holes, the ventilator can be taken out of the U-shaped supporting frame, and a worker does not need to disassemble a plurality of bolts; the first rectangular flanges are arranged at the two ends of the ventilator, ventilation pipelines with rectangular flange connecting ends can be connected to the two ends of the ventilator, the adapters are arranged at the two ends of the ventilator in a matched mode, and ventilation pipelines with circular flange connecting ends can be connected to the two ends of the ventilator. And the applicability is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine ventilation devices, and in particular relates to a ventilation device for coal mine roadways. Background Technology

[0002] A ventilation system is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. Currently, in coal mining, ventilation systems are often installed in mine roadways to ventilate and exchange air. A search revealed a patent with application number 202420316149.X, which discloses a ventilation system for coal mine roadways. This system includes a ventilator, a support structure at the bottom of the ventilator, and a support plate and frame. The support plate and frame are further equipped with multiple sets of dampers for shock absorption. Ventilation plates are installed on the side walls of the ventilator, and the interior of the ventilation plates contains dust-removing filter plates and movable plates for fixing them in place.

[0003] However, in actual use, the applicant found that when the ventilator is connected to the support frame, multiple sets of fixing plates are fixed on the outer wall of the ventilator and the multiple sets of fixing plates are fixed to the top of the support frame with bolts. When the ventilator needs to be disassembled and maintained, personnel need to remove multiple bolts, which makes it inconvenient for personnel to disassemble and maintain the ventilator. In view of this, we propose a ventilation device for roadways in coal mines. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a ventilation device for coal mine roadways, comprising a support base and a ventilation fan. A U-shaped support frame is symmetrically fixedly connected to the top of the support base. Limiting slots are symmetrically opened at both ends of the U-shaped support frame, and the ventilation fan is secured within the U-shaped support frame. Limiting blocks are symmetrically fixedly installed on both sides of the ventilation fan, and the limiting blocks are secured within the limiting slots. L-shaped fixed brackets are symmetrically slidably connected to both sides of the support base. The lower ends of two L-shaped fixed brackets on the same side extend into the interior of the support base and are fixedly connected by connecting plates. A fixing pin is fixedly installed on the inner wall of the upper end of the L-shaped fixed bracket, and the fixing pin engages with a fixing hole opened on the limiting block. A double-ended screw is rotatably connected to the interior of the support base via a bearing. The threads at both ends of the double-ended screw have opposite directions, and the threads at both ends of the double-ended screw respectively penetrate the middle of the two connecting plates. A first rectangular flange is fixedly installed at both ends of the ventilation fan. An adapter is provided at both ends of the adapter, with a circular flange fixedly installed at the end away from the ventilation fan.

[0006] Preferably, a second rectangular flange is fixedly installed on the adapter at one end near the ventilator.

[0007] Preferably, the second rectangular flange and the first rectangular flange are fixedly connected by bolts and nuts.

[0008] Preferably, a filter plate is movably inserted into the top of the support base.

[0009] Preferably, the filter plate is inserted into a slot opened on the ventilator.

[0010] Preferably, the front end of the double-ended screw extends to the outside of the support base and is fitted with an adjusting disc.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses a ventilation device for coal mine roadways. By rotating a double-headed screw counterclockwise, two connecting plates move away synchronously, which in turn moves two sets of L-shaped fixed supports away synchronously, allowing the fixing pins to be removed from the fixing holes. This allows the ventilation fan to be removed from the U-shaped support frame without the need for personnel to disassemble multiple bolts, thus facilitating the disassembly and maintenance of the ventilation fan. By setting first rectangular flanges at both ends of the ventilation fan, ventilation ducts with rectangular flange connection ends can be connected to both ends of the ventilation fan according to usage requirements. By equipping both ends of the ventilation fan with adapters and setting circular flanges at the outer ends of the adapters, ventilation ducts with circular flange connection ends can be connected to both ends of the ventilation fan according to usage requirements, thus enhancing its applicability. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a coal mine roadway ventilation device according to the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of the support base in a coal mine roadway ventilation device according to the present invention.

[0016] Figure 3 This is a schematic diagram of the structure of a ventilation fan in a coal mine roadway ventilation device according to the present invention.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Support base; 11. Connecting plate; 12. Double-ended screw; 121. Adjusting plate; 2. U-shaped support frame; 21. Limiting slot; 3. Ventilator; 31. Limiting block; 311. Fixing hole; 32. Slot; 33. First rectangular flange; 4. L-shaped fixing bracket; 41. Fixing pin; 5. Filter plate; 6. Adapter; 61. Second rectangular flange; 62. Circular flange. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution:

[0021] A ventilation device for coal mine roadways includes a support base 1 and a ventilation fan 3. A U-shaped support frame 2 is symmetrically fixedly connected to the top of the support base 1. Limiting slots 21 are symmetrically opened at both ends of the U-shaped support frame 2. The ventilation fan 3 is secured in the U-shaped support frame 2. The ventilation fan 3 can be a KCS-225LZ model, and its outer shell can be configured as a rectangular tube. Limiting blocks 31 are symmetrically fixedly installed on both sides of the ventilation fan 3, and the limiting blocks 31 are secured in the limiting slots 21. L-shaped fixing brackets 4 are symmetrically slidably connected to both sides of the support base 1. Two L-shaped fixing brackets on the same side... The lower end of the L-shaped fixing bracket 4 extends into the interior of the support base 1 and is fixedly connected by the connecting plate 11. A fixing pin 41 is fixedly installed on the inner wall of the upper end of the L-shaped fixing bracket 4. The fixing pin 41 is engaged with the fixing hole 311 opened on the limiting block 31. A double-ended screw 12 is rotatably connected to the interior of the support base 1 through a bearing. The threads at both ends of the double-ended screw 12 turn in opposite directions, and the threads at both ends of the double-ended screw 12 respectively pass through the middle of the two connecting plates 11. The front end of the double-ended screw 12 extends to the outside of the support base 1 and is fitted with an adjusting plate 121. Rotating the double-headed screw 12 counterclockwise causes the two connecting plates 11 to move away synchronously, which in turn causes the two sets of L-shaped fixed brackets 4 to move away synchronously, allowing the fixing pin 41 to be removed from the fixing hole 311. This allows the ventilator 3 to be removed from the U-shaped support frame 2 without requiring personnel to disassemble multiple bolts, thus facilitating disassembly and maintenance of the ventilator 3. A filter plate 5 is movably inserted into the top of the support base 1, and the filter plate 5 is inserted into the slot 32 on the ventilator 3. In use, the ventilator 3 can be moved into the mine to purify and exchange air within the mine. During ventilation, the air is filtered by the filter plate 5. After a period of time, the filter plate 5 can be pulled out of the slot 32 for cleaning. When the fan 3 needs to be disassembled and maintained, the double-headed screw 12 can be rotated by manually turning the adjusting plate 121 counterclockwise. The rotation of the double-headed screw 12 can drive the two connecting plates 11 to move away synchronously. In turn, the connecting plates 11 can drive the two sets of L-shaped fixed brackets 4 to move away synchronously, so that the fixing pin 41 can be removed from the fixing hole 311. Then the fan 3 can be taken out of the U-shaped support frame 2 for maintenance.

[0022] Both ends of the ventilator 3 are fixedly equipped with first rectangular flanges 33. Both ends of the ventilator 3 are equipped with adapters 6. A circular flange 62 is fixedly installed on the end of the adapter 6 furthest from the ventilator 3, and a second rectangular flange 61 is fixedly installed on the end of the adapter 6 closest to the ventilator 3. The second rectangular flange 61 and the first rectangular flanges 33 are fixedly connected by bolts and nuts. By providing first rectangular flanges 33 at both ends of the ventilator 3, ventilation ducts with rectangular flange connection ends can be connected to both ends of the ventilator 3 according to usage requirements. By equipping both ends of the ventilator 3 with adapters 6 and providing circular flanges 62 at the outer ends of the adapters 6, ventilation ducts with rectangular flange connection ends can be connected to both ends of the ventilator 3 according to usage requirements. To meet the demand, ventilation ducts with circular flange connection ends can be connected to both ends of the ventilation fan 3, which is more versatile. When it is necessary to connect ventilation ducts with rectangular flange connection ends to both ends of the ventilation fan 3, the two ends of the ventilation fan 3 can be directly fixed to the external ventilation ducts with bolts and nuts through the first rectangular flange 33. When it is necessary to connect ventilation ducts with circular flange connection ends to both ends of the ventilation fan 3, the second rectangular flange 61 on the adapter 6 can be fixed to the first rectangular flange 33 with bolts and nuts first, and then the circular flange 62 can be fixed to the external ventilation duct with bolts and nuts, thereby realizing the connection between the ventilation fan 3 and the external ventilation duct.

[0023] Working principle: When in use, the ventilation fan 3 is moved into the mine to purify the air. During ventilation, the air is filtered by the filter plate 5. After a period of time, the filter plate 5 can be pulled out of the slot 32 for cleaning. When the ventilation fan 3 needs to be disassembled for maintenance, the double-headed screw 12 can be rotated by manually turning the adjusting disc 121 counterclockwise. The rotation of the double-headed screw 12 can drive the two connecting plates 11 to move away synchronously, which in turn can drive the two sets of L-shaped fixed brackets 4 to move away synchronously, so that the fixing pin 41 can be removed from the fixing hole 311, thus allowing the ventilation fan to be turned on. When the fan 3 is removed from the U-shaped support frame 2 for maintenance, and when it is necessary to connect the two ends of the fan 3 to the ventilation duct with rectangular flange connection ends, the two ends of the fan 3 can be directly fixed to the external ventilation duct with bolts and nuts through the first rectangular flange 33. When it is necessary to connect the two ends of the fan 3 to the ventilation duct with circular flange connection ends, the second rectangular flange 61 on the adapter 6 can be fixed to the first rectangular flange 33 with bolts and nuts first, and then the circular flange 62 can be fixed to the external ventilation duct with bolts and nuts, thereby realizing the connection between the fan 3 and the external ventilation duct.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A mine roadway ventilation device for coal mining, comprising a support seat (1) and a ventilator (3), characterized in that: The top of the support seat (1) is symmetrically connected with a U-shaped support frame (2), both ends of the U-shaped support frame (2) are symmetrically provided with a limiting clamping groove (21), the ventilator (3) is clamped in the U-shaped support frame (2), both sides of the ventilator (3) are symmetrically provided with a limiting clamping block (31), the limiting clamping block (31) is clamped in the limiting clamping groove (21), both sides of the support seat (1) are symmetrically connected with an L-shaped fixing support (4), the lower ends of the two L-shaped fixing supports (4) on the same side extend to the inside of the support seat (1) and are fixedly connected through a connecting plate (11), a fixed pin (41) is fixedly arranged on the inner wall of the upper end of the L-shaped fixing support (4), the fixed pin (41) is connected with a fixed hole (311) arranged on the limiting clamping block (31), a double-headed screw rod (12) is rotatably connected in the inside of the support seat (1) through a bearing, the screw threads on both ends of the double-headed screw rod (12) are opposite, and the two ends of the double-headed screw rod (12) are respectively threaded through the middle portions of the two connecting plates (11), first rectangular flanges (33) are fixedly arranged at both ends of the ventilator (3), an adapter (6) is arranged at both ends of the ventilator (3), a circular flange plate (62) is fixedly arranged at one end of the adapter (6) away from the ventilator (3).

2. The mine roadway ventilation device for coal mining according to claim 1, characterized in that, The second rectangular flange (61) is fixedly arranged at one end of the adapter (6) close to the ventilator (3).

3. The mine roadway ventilation device for coal mining according to claim 2, characterized in that, The second rectangular flange (61) and the first rectangular flange (33) are fixedly connected through bolts and nuts.

4. The mine roadway ventilation device for coal mining according to claim 1, characterized in that, The top of the support seat (1) movably inserts a filter plate (5).

5. The mine roadway ventilation device for coal mining according to claim 4, characterized in that, The filter plate (5) is inserted into a slot (32) arranged on the ventilator (3).

6. The mine roadway ventilation device for coal mining according to claim 1, characterized in that, The front end of the double-headed screw rod (12) extends to the outside of the support seat (1) and is sleeved with an adjusting disc (121). The second rectangular flange (61) is fixedly arranged at one end of the adapter (6) close to the ventilator (3). The second rectangular flange (61) and the first rectangular flange (33) are fixedly connected through bolts and nuts. The top of the support seat (1) movably inserts a filter plate (5). The filter plate (5) is inserted into a slot (32) arranged on the ventilator (3). The front end of the double-headed screw rod (12) extends to the outside of the support seat (1) and is sleeved with an adjusting disc (121).

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