Adjustable mine electric heater fan

Abstract

The utility model discloses an adjustable mine electric heating fan belongs to mine heating technical field, an adjustable mine electric heating fan, including the case, the front end fixedly connected with fan of case, and the rear end fixedly connected with air inlet, drive motor and speed reducer of case top surface, one side fixedly connected with the side plate of case, and the other side fixedly connected with a group of sealing block of case, the inside fixedly connected with a group of resistance heating plate of case, and the inside of case is away from the one end of resistance heating plate and is equipped with the movable slot, this scheme sets up rotating assembly, has prolonged the heating path, and improved the flow power of air, improved the heating effect of air, filters the dust impurity in air simultaneously, and sets up the meshing transmission assembly, realizes the synchronous drive of multiple rotating assembly, installs the rotating assembly through the clamping mode simultaneously, and the replacement of rotating assembly is convenient.

Description

Technical Field

[0001] This utility model relates to the field of mine heating technology, and more specifically, to an adjustable mine electric heating fan. Background Technology

[0002] Mines are typically located deep underground in low-temperature environments, especially in winter. The temperature in the mine shaft and shaft opening area is extremely low, which can easily lead to icing, affecting normal mine production and the safe operation of equipment. Hot air blowers are needed to heat the air and deliver it to the mine, providing a warm and comfortable working space to improve workers' work efficiency and health. At the same time, it can effectively reduce potential safety hazards caused by the cold environment inside the mine.

[0003] Based on the above, the inventors have discovered that existing electric heating fans draw external air into the heating device through a fan, heat the air inside the device, and then discharge it. Therefore, the heating effect of the air is crucial. Generally, there are two ways to improve the heating effect: one is to increase the heating energy consumption of the resistance heating element, and the other is to extend the heating path. However, increasing the heating energy consumption increases the heating cost, while extending the heating path increases the airflow resistance, resulting in a decrease in the intensity of the hot air output. Therefore, in view of this, the inventors have studied and improved the existing structure to provide an adjustable mine electric heating fan, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an adjustable mine electric heating fan. This solution is equipped with a rotating component, which extends the heating path and improves the airflow dynamics, thereby enhancing the air heating effect. At the same time, it filters dust and impurities in the air. Furthermore, it is equipped with a meshing transmission component to achieve synchronous drive of multiple rotating components. Additionally, the rotating components are installed using a snap-fit ​​method, which facilitates the replacement of the rotating components.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An adjustable mine electric heating fan includes a casing. A fan is fixedly connected to the front end of the casing, and an air inlet, a drive motor, and a reducer are fixedly connected to the rear end of the casing near the top surface. A side plate is fixedly connected to one side of the casing, and a set of sealing blocks is fixedly connected to the other side of the casing. A set of resistance heating plates is fixedly connected inside the casing, and a movable groove is opened at the end of the casing away from the resistance heating plates. A rotating shaft is movably connected inside the movable groove.

[0009] Several pairs of transmission rings are arranged on one side of the reducer near the bottom. The inner side of the transmission ring has a locking groove in the center. The opposite sides of two adjacent transmission rings on the same side are fitted with transmission belts on the outer side. A set of blades is fixedly connected to the outer side of the rotating shaft. The two ends of the blades are fixedly connected to locking blocks and movable blocks, respectively. Several air guide grooves are opened on the side of the blades. A filter screen is fixedly connected to one end of the air guide groove on the outer side.

[0010] Furthermore, the output end of the drive motor is coaxially connected to the reducer, and the output end of the reducer is fixedly connected to the uppermost transmission ring among several transmission rings.

[0011] Furthermore, the directions of two adjacent resistance heating plates are opposite, the directions of two adjacent movable slots are opposite, and the resistance heating plates are adapted to the movable slots.

[0012] Furthermore, the transmission ring is located inside the side plate, and the transmission ring is movably connected to the side plate.

[0013] Furthermore, the snap-fit ​​block is rectangular in shape, and one of its outermost ends is snap-fitted into the snap-fit ​​groove.

[0014] Furthermore, the movable block is located inside an adjacent sealing block, and the movable block is movably connected to the sealing block.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution extends the air flow path by staggered resistance heating plates, thereby improving the air heating effect. At the same time, the rotating shaft cooperates with the blades to improve the air flow power and ensure the wind power of the hot air. During the rotation of the blades, the air passes through the air guide groove and is filtered by the filter screen. Compared with the existing technology, the rotating component extends the heating path and improves the air flow power, thus improving the air heating effect. At the same time, it filters the dust and impurities in the air.

[0018] (2) By setting up a drive motor and a reducer to make the corresponding transmission ring rotate, and by using the transmission ring and the transmission belt to achieve meshing transmission, multiple rotating shafts rotate synchronously. Then, the sealing block drives the rotating shaft to move out from one side of the chassis, and then the new rotating shaft is placed into the movable slot inside the chassis, so that the snap-fit ​​block at one end of the rotating shaft snaps into the snap-fit ​​slot, thus completing the replacement of the rotating component. Compared with the existing technology, the meshing transmission component is set up to achieve synchronous drive of multiple rotating components. At the same time, the rotating components are installed by snap-fit, which facilitates the replacement of the rotating components. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the chassis of this utility model;

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the transmission ring and the transmission belt of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0024] Figure 6 This is a partial cross-sectional view of the rotating shaft of this utility model;

[0025] Figure 7 This is a schematic diagram showing the positional relationship between the rotating shaft and the drive motor of this utility model.

[0026] The following are the labels in the diagram: 1. Chassis; 2. Fan; 3. Air inlet; 4. Drive motor; 5. Side plate; 6. Reducer; 7. Sealing block; 8. Resistance heating plate; 9. Movable groove; 10. Shaft; 11. Transmission ring; 12. Snap-fit ​​groove; 13. Transmission belt; 14. Blade; 15. Snap-fit ​​block; 16. Movable block; 17. Air guide groove; 18. Filter screen. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Example:

[0029] Please see Figure 1-7 An adjustable mine electric heating fan includes a casing 1. A fan 2 is fixedly connected to the front end of the casing 1, and an air inlet 3, a drive motor 4, and a reducer 6 are fixedly connected to the rear end of the casing 1 near the top surface. A side plate 5 is fixedly connected to one side of the casing 1, and a set of sealing blocks 7 is fixedly connected to the other side of the casing 1. A set of resistance heating plates 8 is fixedly connected inside the casing 1, and a movable groove 9 is opened at the end of the casing 1 away from the resistance heating plates 8. A rotating shaft 10 is movably connected inside the movable groove 9.

[0030] Several pairs of transmission rings 11 are arranged on one side of the reducer 6 near the bottom. The inner side of the transmission ring 11 has a locking groove 12 in the center. The opposite sides of two adjacent transmission rings 11 on the same side are fitted with transmission belts 13 on the outer side. A set of blades 14 are fixedly connected to the outer side of the rotating shaft 10. The two ends of the blades 14 are fixedly connected to locking blocks 15 and movable blocks 16, respectively. Several air guide grooves 17 are opened on the side of the blades 14. A filter screen 18 is fixedly connected to the outer end of the air guide groove 17. Air passes through the air guide groove 17, and the filter screen 18 filters dust.

[0031] See Figure 4 The output end of the drive motor 4 is coaxially connected to the reducer 6. The output end of the reducer 6 is fixedly connected to the uppermost transmission ring 11 of several transmission rings 11. When the drive motor 4 is started, it works with the reducer 6 to make the corresponding transmission ring 11 rotate.

[0032] See Figure 3 The two adjacent resistance heating plates 8 are oriented in opposite directions, and the two adjacent movable slots 9 are oriented in opposite directions. The resistance heating plates 8 and the movable slots 9 are matched. When the fan 2 is turned on, the outside air enters the machine box 1 through the air inlet 3 and is heated by the resistance heating plates 8. At the same time, the staggered resistance heating plates 8 extend the air flow path, thereby improving the heating effect of the air. Then the hot air is discharged by the fan 2 to heat the mine.

[0033] See Figure 1 The transmission ring 11 is located inside the side plate 5 and is movably connected to the side plate 5. The transmission ring 11 works in conjunction with the transmission belt 13 to achieve meshing transmission, so that the transmission ring 11 drives the rotating shaft 10 to rotate.

[0034] See Figure 6 The snap-fit ​​block 15 is rectangular in shape, and one of the outer ends of the snap-fit ​​block 15 is snapped into the snap-fit ​​groove 12. By engaging the snap-fit ​​block 15 with the snap-fit ​​groove 12, the rotating shaft 10 and the corresponding transmission ring 11 are connected as a whole.

[0035] See Figure 6 The movable block 16 is located inside the adjacent sealing block 7, and the movable block 16 is movably connected to the sealing block 7. The movable block 16 cooperates with the sealing block 7 to ensure the rotational stability of the rotating shaft 10.

[0036] In operation: Fan 2 is started, allowing outside air to enter the casing 1 through air inlet 3. The air is heated by resistance heating plates 8. The staggered arrangement of resistance heating plates 8 extends the airflow path, thereby improving the heating effect. The hot air is then exhausted by fan 2, heating the mine shaft. During this process, drive motor 4 is started, working with reducer 6 to rotate the corresponding transmission ring 11. The transmission ring 11, in conjunction with transmission belt 13, achieves meshing transmission, causing multiple rotating shafts 10 to rotate synchronously. The rotating shafts 10, in conjunction with blades 14, improve airflow. The power ensures the airflow of hot air, and during the rotation of the blade 14, the air passes through the air guide groove 17 and is filtered by the filter screen 18 to reduce the accumulation of dust inside the casing 1. After the heating work is completed, the bolts on the side of the sealing block 7 are removed, so that the sealing block 7 drives the rotating shaft 10 to move out from one side of the casing 1. Then, the new rotating shaft 10 is placed into the movable groove 9 inside the casing 1, so that the snap-fit ​​block 15 at one end of the rotating shaft 10 snaps into the snap-fit ​​groove 12. Finally, the sealing block 7 is fixed again with bolts to complete the replacement of the filter assembly, which facilitates subsequent air heating.

[0037] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. An adjustable mine electric heating fan, comprising a casing (1), wherein a fan (2) is fixedly connected to the front end of the casing (1), and an air inlet (3), a drive motor (4), and a reducer (6) are fixedly connected to the rear end of the casing (1) near the top surface; a side plate (5) is fixedly connected to one side of the casing (1), and a set of sealing blocks (7) is fixedly connected to the other side of the casing (1), characterized in that: A set of resistance heating plates (8) are fixedly connected inside the chassis (1), and a movable groove (9) is provided at the end of the chassis (1) away from the resistance heating plates (8), and a rotating shaft (10) is movably connected inside the movable groove (9). The reducer (6) has several pairs of transmission rings (11) arranged on one side at the bottom. The inner side of the transmission ring (11) is provided with a snap-fit ​​groove (12) in the center. The two adjacent transmission rings (11) on the same side are fitted with a transmission belt (13) on the outer side. A set of blades (14) is fixedly connected to the outer side of the rotating shaft (10). The two ends of the blades (14) are fixedly connected with snap-fit ​​blocks (15) and movable blocks (16), respectively. Several air guide grooves (17) are provided on the side of the blades (14). A filter screen (18) is fixedly connected to one end of the air guide groove (17) on the outer side.

2. The adjustable mine electric heating fan according to claim 1, characterized in that: The output end of the drive motor (4) is coaxially connected to the reducer (6), and the output end of the reducer (6) is fixedly connected to the uppermost transmission ring (11) of several transmission rings (11).

3. An adjustable mine electric heating fan according to claim 1, characterized in that: The two adjacent resistance heating plates (8) are in opposite directions, the two adjacent movable slots (9) are in opposite directions, and the resistance heating plates (8) and movable slots (9) are adapted to each other.

4. An adjustable mine electric heating fan according to claim 1, characterized in that: The transmission ring (11) is located inside the side plate (5) and is movably connected to the side plate (5).

5. An adjustable mine electric heating fan according to claim 1, characterized in that: The snap-fit ​​block (15) is rectangular, and one end of the snap-fit ​​block (15) on the outer side is snap-fitted to the snap-fit ​​groove (12).

6. An adjustable mine electric heating fan according to claim 1, characterized in that: The movable block (16) is located inside the adjacent sealing block (7), and the movable block (16) is movably connected to the sealing block (7).

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