Heat exchange fan protection structure

Abstract

The utility model relates to heat exchange fan technical field discloses a heat exchange fan protection structure, including fan shell, the inner wall of fan shell is provided with protection subassembly, the protection subassembly includes fixed block, the outer wall fixed connection of fixed block has support rod, the outer wall fixed connection of support rod has the protection ring, the inside of fixed block and support rod is provided with locking mechanism. In the utility model, through the rotation knob cooperation connecting rod can drive the sliding of the plug rod in the inner wall of support rod, so can control the plug rod to insert into the inside of the jack or remove the jack, when the plug rod inserts into the inside of the jack can fix the protection subassembly in the inside of fan shell, when the plug rod removes the jack can dismantle the protection subassembly, compared with traditional screw connection, heat exchange fan protection subassembly is assembled and disassembled to save time and labour, thereby can make the subsequent maintenance work of heat exchange fan more efficient, improve equipment whole maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange fan technology, and in particular to a heat exchange fan protective structure. Background Technology

[0002] The core function of a heat exchange fan is to achieve efficient heat exchange between air and fluid. It drives air to flow over the surface of the heat exchanger fins through forced convection, thereby greatly improving the efficiency and speed of heat dissipation or heating. It is widely used in many fields such as air conditioning systems, cooling of power electronic equipment, industrial drying and waste heat recovery.

[0003] To ensure operational safety and internal cleanliness, heat exchange fans are usually equipped with protective nets at their critical air inlets and outlets. These nets effectively prevent tools, debris, and even personnel clothing from being accidentally drawn into the high-speed rotating fan during operation due to airflow. This avoids mechanical damage to core components such as fan blades and motors, ensuring the long-term stable operation of the equipment.

[0004] Currently, the protective screens of heat exchange fans are generally fixed directly to the surface of their frames with screws. While this connection method is simple in structure and ensures the stability of the protective screen installation, its maintenance drawbacks are significant. When a heat exchange fan malfunctions and needs repair, maintenance personnel must use tools to remove multiple screws one by one to remove the protective screen, then take out the internal fan for repair. After the repair is completed, the screen must be repositioned and each screw tightened again. The entire process is time-consuming and labor-intensive, increasing maintenance time and labor costs, and reducing the overall maintenance efficiency of the equipment. Therefore, a new protective structure for heat exchange fans is proposed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art, and thus proposes a heat exchanger fan protective structure. This invention allows the insertion rod to slide along the inner wall of the support rod by rotating a knob in conjunction with a connecting rod. This controls whether the insertion rod is inserted into or removed from the insertion hole. When the insertion rod is inserted into the insertion hole, the protective component is fixed inside the fan housing. When the insertion rod is removed from the insertion hole, the protective component can be disassembled. Compared to traditional screw connections, the heat exchanger fan protective component is easier and less labor-intensive to assemble and disassemble, thereby making subsequent maintenance of the heat exchanger fan more efficient and improving the overall maintenance efficiency of the equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is: A heat exchange fan protection structure includes a fan housing. The inner wall of the fan housing is provided with a protective component. The protective component includes a fixing block. A support rod is fixedly connected to the outer wall of the fixing block. A protective ring is fixedly connected to the outer wall of the support rod. The support rod provides support for the protective ring, which can improve the strength of the protective ring and make the protective ring more stable during equipment operation. A locking mechanism is provided inside the fixing block and the support rod. A cleanup mechanism is provided inside the fixing block. The locking mechanism includes a rod that passes through and slidably connects to the inner wall of a support rod. The inner wall of the fan housing has a slot for inserting the support rod. By using the support rod in conjunction with the slot, the protective assembly can be quickly docked with the fan housing. The inner wall of the slot has an insertion hole for inserting the rod. By using the rod in conjunction with the insertion hole, the support rod can be limited within the slot. A connecting rod is hinged to one end of the rod near the fixing block. A knob is rotatably connected to the inner wall of the fixing block. A spring is fixedly connected between the side wall of the knob and the inner wall of the fixing block. The spring's elasticity pulls the knob, causing it to rotate and reset within the inner wall of the fixing block. This ensures the rod is stably inserted into the insertion hole, allowing the protective assembly to maintain a stable state during heat exchanger fan operation.

[0007] As a further description of the above technical solution: The dust removal mechanism includes a rotating shaft that passes through and is rotatably connected to the inner wall of the fixed block. The rotating shaft can drive the rotating plate to rotate around the axis of the rotating shaft as the origin, so that the bristles on the side wall of the rotating plate can be moved to fit against the inner side of the protective ring to remove dust from the inner side of the protective ring.

[0008] As a further description of the above technical solution: A gear is fixedly connected to one end of the rotating shaft near the knob, and a gear ring is fixedly connected to the inner wall of the knob. The gear ring meshes with the gear. By rotating the knob, the gear can be driven to rotate simultaneously with the gear ring, thus driving the rotating shaft to rotate on the inner wall of the fixed block.

[0009] As a further description of the above technical solution: A rotating plate is fixedly connected to the outer wall of the rotating shaft. The side of the rotating plate close to the fixed block is in contact with the side wall of the fixed block. The rotating plate can drive the brush to move against the surface of the protective ring, so that the brush bristles can be used to remove dust from the inside of the protective ring.

[0010] As a further description of the above technical solution: The rotating plate is fixedly connected to a brush on the side near the fixed block. The brush is attached to the outer wall of the protective ring. The brush can sweep away the dust on the inside of the protective ring, preventing dust accumulation and impurities from adhering and affecting the ventilation effect of the equipment.

[0011] As a further description of the above technical solution: The end of the connecting rod away from the insert rod is hinged to the side wall of the knob, and the hinge point between the connecting rod and the knob is offset from the axis of the knob. By rotating the knob, the connecting rod can be pushed or pulled, thus driving the insert rod to slide on the inner wall of the support rod.

[0012] As a further description of the above technical solution: The protective rings are arranged at least three sets at equal intervals from the inside out, with the diameter gradually increasing. The protective net formed by the multiple sets of protective rings with gradually increasing diameters can prevent foreign objects from being drawn into the high-speed rotating fan due to airflow adsorption during equipment operation.

[0013] As a further description of the above technical solution: The end of the support rod away from the fixing block is inserted into the inner wall of the slot, and the end of the insertion rod away from the connecting rod is inserted into the inner wall of the insertion hole.

[0014] This utility model has the following beneficial effects: 1. This utility model allows the insertion rod to slide along the inner wall of the support rod by rotating the knob in conjunction with the connecting rod. This controls whether the insertion rod is inserted into or removed from the insertion hole. When the insertion rod is inserted into the insertion hole, the protective component is fixed inside the fan housing. When the insertion rod is removed from the insertion hole, the protective component can be disassembled. Compared with traditional screw connections, the heat exchanger fan protective component is easier to assemble and disassemble, saving time and effort. This makes subsequent maintenance of the heat exchanger fan more efficient and improves the overall maintenance efficiency of the equipment.

[0015] 2. By rotating the knob, along with the gear ring, gear, rotating shaft, and rotating plate, the brush bristles can be moved to adhere to the surface of the protective ring. At this time, the brush bristles can sweep off the dust and impurities attached to the inside of the protective ring, preventing the accumulation of impurities from affecting the ventilation effect of the equipment. In this way, the inside of the protective component can be cleaned while disassembling the protective component, eliminating the need for manual dust removal, reducing the workload of equipment maintenance, and thus further improving the efficiency of equipment maintenance.

[0016] 3. By setting a spring, when the knob is released, the previously compressed spring will pull the knob, causing the knob to rotate and reset on the inner wall of the fixed block, and the locking mechanism can automatically reset.

[0017] 4. This utility model uses a toothed ring and gears to set multiple sets of bristles to ensure that the protective ring is cleaned thoroughly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the exploded structure; Figure 3 This is a schematic diagram of the overall structure of the protective component of this utility model; Figure 4 This utility model Figure 3 A partial cross-sectional view of the structure from the side; Figure 5 This utility model Figure 3 A frontal sectional view of the structure; Figure 6 This utility model Figure 2 A magnified structural diagram at point A.

[0019] in: 1. Fan casing; 2. Protective components; 21. Fixing block; 22. Support rod; 23. Protective ring; 3. Locking mechanism; 31. Insert rod; 32. Slot; 33. Insertion hole; 34. Connecting rod; 35. Knob; 36. Spring; 4. Impurity removal mechanism; 41. Rotating shaft; 42. Gear; 43. Rotating plate; 44. Gear ring; 45. Brush bristles. Detailed Implementation

[0020] 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.

[0021] like Figures 1-3As shown, one embodiment of this utility model provides a heat exchange fan protection structure, including a fan housing 1. A protective component 2 is provided on the inner wall of the fan housing 1. The protective component 2 prevents foreign objects from being drawn into the fan housing 1 by airflow, thus preventing damage to the fan. The protective component 2 includes a fixing block 21, and a support rod 22 is fixedly connected to the outer wall of the fixing block 21. The support rod 22 provides support for a protective ring 23, improving the strength of the protective ring 23. The outer wall of the support rod 22 is fixedly connected to the protective ring 23. At least three sets of protective rings 23 are equidistantly arranged from the inside out, with their diameters gradually increasing. The protective net formed by multiple sets of protective rings 23 with gradually increasing diameters can protect the air inlet and outlet of the fan casing 1, preventing foreign objects from being drawn into the high-speed rotating fan due to airflow adsorption during equipment operation. The fixing block 21 and the support rod 22 are equipped with a locking mechanism 3. The protective component 2 can be quickly disassembled and assembled through the locking mechanism 3, making the subsequent maintenance of the heat exchange fan more convenient and efficient. The fixing block 21 is equipped with a dust removal mechanism 4. The dust removal mechanism 4 can remove dust from the inside of the protective component 2 while disassembling it, eliminating the need for manual dust removal and improving the convenience of equipment maintenance.

[0022] like Figures 3-5 As shown, the locking mechanism 3 includes a rod 31 that passes through and slides on the inner wall of the support rod 22. When the rod 31 is completely removed from the insertion hole 33, the limitation on the support rod 22 can be released, and the support rod 22 can be directly removed from the inside of the slot 32. This allows for quick disassembly of the protective component 2, facilitating maintenance of the fan inside the fan housing 1. When the rod 31 is inserted into the insertion hole 33, it limits the support rod 22 within the slot 32, thus quickly fixing the protective component 2 inside the fan housing 1 and improving the installation efficiency of the protective component 2. A connecting rod 34 is hinged to one end of the rod 31 near the fixing block 21. Pushing or pulling the rod 31 via the connecting rod 34 drives the rod 31 to slide on the inner wall of the support rod 22. The sliding of the rod 31 allows for... The knob 35 is rotatably connected to the inner wall of the fixing block 21. The end of the connecting rod 34 away from the plug rod 31 is hinged to the side wall of the knob 35, and the hinge point between the connecting rod 34 and the knob 35 is off the axis of the knob 35. Since the hinge point between the connecting rod 34 and the knob 35 is off the axis of the knob 35, the knob 35 can drive the plug rod 31 to slide on the inner wall of the support rod 22 while rotating, in conjunction with the connecting rod 34. A spring 36 is fixedly connected between the side wall of the knob 35 and the inner wall of the fixing block 21. Rotating the knob 35 causes the knob 35 to rotate on the inner wall of the fixing block 21 and compress the spring 36. When the knob 35 is released, the previously compressed spring 36 will pull the knob 35, causing the knob 35 to rotate back to its original position on the inner wall of the fixing block 21.

[0023] like Figure 6As shown, the inner wall of the fan housing 1 has a slot 32 for inserting a support rod 22. The end of the support rod 22 away from the fixing block 21 is inserted into the inner wall of the slot 32. When the support rod 22 is fully inserted into the slot 32, the protective component 2 can be quickly connected to the fan housing 1. Under the limiting effect of the slot 32, the protective component 2 can be prevented from rotating inside the fan housing 1, thus ensuring the stability of the protective component 2. The inner wall of the slot 32 has a hole 33 for inserting a rod 31. The end of the rod 31 away from the connecting rod 34 is inserted into the inner wall of the hole 33. When the rod 31 is inserted into the hole 33, the support rod 22 can be limited inside the slot 32 by using the hole 33 and the rod 31. In this way, the support rod 22 can be fixed, thus completing the installation of the protective component 2. There is no need to lock it with screws, making the installation of the heat exchanger fan's protective component 2 more convenient.

[0024] like Figures 2-4 As shown, the dust removal mechanism 4 includes a rotating shaft 41, which is rotatably connected to the inner wall of the fixed block 21. A gear 42 is fixedly connected to the end of the rotating shaft 41 near the knob 35. When the gear 42 rotates, it drives the rotating shaft 41 to rotate synchronously on the inner wall of the fixed block 21. This allows the rotating shaft 41 to drive the rotating plate 43 to rotate, so that the bristles 45 on the side wall of the rotating plate 43 can be used to remove dust from the inside of the protective ring 23. A gear ring 44 is fixedly connected to the inner wall of the knob 35. When the knob 35 is rotated, it drives the gear ring 44 on its inner wall to rotate synchronously. The gear ring 44 meshes with the gear 42. When the gear ring 44 rotates, it drives the gear 42 to rotate. A rotating plate 43 is fixedly connected to the outer wall of the rotating shaft 41. The side of the rotating plate 43 near the fixed block 21 is connected to the fixed plate 43. The side wall of the fixed block 21 is attached. When the rotating shaft 41 rotates, it will drive the rotating plate 43 to rotate around the axis of the rotating shaft 41 as the origin. At the same time, the fixed block 21 attached to the rotating plate 43 can provide radial support for the rotation of the rotating plate 43, making the rotation of the rotating plate 43 more stable. The side of the rotating plate 43 near the fixed block 21 is fixedly connected to the bristles 45. The bristles 45 are attached to the outer wall of the protective ring 23. When the rotating plate 43 rotates, it will drive the bristles 45 on its side wall to move against the surface of the protective ring 23. At this time, the bristles 45 can sweep off the dust and impurities attached to the inside of the protective ring 23, avoiding the accumulation of impurities and affecting the ventilation effect of the equipment. In this way, the inside of the protective component 2 can be cleaned while disassembling the protective component 2, eliminating the need for manual dust removal and reducing the workload of equipment maintenance.

[0025] Working principle: When it is necessary to inspect the fan inside the fan housing 1, first turn the knob 35 so that the knob 35 rotates on the inner wall of the fixed block 21 and compresses the spring spring 36. At the same time, the rotation of the knob 35 pulls the connecting rod 34, which pulls the insertion rod 31. At this time, the insertion rod 31 will slide on the inner wall of the support rod 22 and gradually approach the knob 35. Meanwhile, the insertion rod 31 will gradually be pulled out from the inside of the insertion hole 33. As the insertion rod 31 slides, when the insertion rod 31 is completely removed from the insertion hole 33, the limit on the support rod 22 can be released. At this time, the support rod 22 can be directly removed from the inside of the slot 32. In this way, the protective component 2 can be removed from the inside of the fan housing 1 so that the fan inside the fan housing 1 can be disassembled and inspected.

[0026] When the maintenance is completed and the protective component 2 needs to be installed, first turn the knob 35 so that it rotates on the inner wall of the fixing block 21 and compresses the spring 36. While the knob 35 is rotating, it can pull the connecting rod 34, which in turn pulls the insertion rod 31. At this time, the insertion rod 31 will slide on the inner wall of the support rod 22 and gradually approach the knob 35 until the end of the insertion rod 31 away from the fixing block 21 is completely inserted into the support rod 22. Then, fully insert the support rod 22 into the slot 32. After insertion, the knob 35 can be released. At this time, the previously compressed spring 36 will be released. Spring 36 pulls knob 35, causing knob 35 to rotate and reset on the inner wall of fixing block 21. During the rotation and reset process, knob 35 pushes connecting rod 34, causing connecting rod 34 to push insert rod 31. At this time, insert rod 31 slides on the inner wall of support rod 22 and gradually moves away from fixing block 21. Meanwhile, insert rod 31 can be inserted into the socket 33 again during the sliding process. At this time, by using socket 33 and insert rod 31, support rod 22 can be limited inside slot 32. Thus, protective component 2 can be fixed inside fan housing 1. Thus, the installation of protective component 2 is completed.

[0027] While the knob 35 is turned, the knob 35 will drive the gear ring 44 on its inner wall to rotate synchronously. As the gear ring 44 rotates, it will drive the gear 42 that meshes with it to rotate. At this time, the gear 42 will drive the rotating shaft 41 to rotate on the inner wall of the fixed block 21. As the rotating shaft 41 rotates, it will drive the rotating plate 43 to rotate around the axis of the rotating shaft 41 as the origin. As the rotating plate 43 rotates, it will drive the bristles 45 on its side wall to move against the surface of the protective ring 23. At this time, the bristles 45 can sweep off the dust and impurities attached to the inner side of the protective ring 23, so as to avoid the accumulation of impurities and affect the ventilation effect of the equipment.

[0028] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0029] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.

Claims

1. A heat exchange fan protective structure, comprising a fan housing (1), characterized in that: The inner wall of the fan casing (1) is provided with a protective component (2). The protective component (2) includes a fixing block (21). A support rod (22) is fixedly connected to the outer wall of the fixing block (21). A protective ring (23) is fixedly connected to the outer wall of the support rod (22). A locking mechanism (3) is provided inside the fixing block (21) and the support rod (22). A cleaning mechanism (4) is provided inside the fixing block (21). The locking mechanism (3) includes a plug rod (31), which is slidably connected to the inner wall of the support rod (22). The inner wall of the fan housing (1) is provided with a slot (32) for the support rod (22) to be inserted. The inner wall of the slot (32) is provided with a hole (33) for the plug rod (31) to be inserted. The end of the plug rod (31) near the fixing block (21) is hinged to a connecting rod (34). The inner wall of the fixing block (21) is rotatably connected to a knob (35). A spring spring (36) is fixedly connected between the side wall of the knob (35) and the inner wall of the fixing block (21).

2. The heat exchange fan protection structure according to claim 1, characterized in that: The impurity removal mechanism (4) includes a rotating shaft (41) that passes through and is rotatably connected to the inner wall of the fixed block (21).

3. The heat exchange fan protection structure according to claim 2, characterized in that: A gear (42) is fixedly connected to one end of the rotating shaft (41) near the knob (35), and a gear ring (44) is fixedly connected to the inner wall of the knob (35), and the gear ring (44) meshes with the gear (42).

4. The heat exchange fan protection structure according to claim 2, characterized in that: A rotating plate (43) is fixedly connected to the outer wall of the rotating shaft (41), and the side of the rotating plate (43) close to the fixing block (21) is in contact with the side wall of the fixing block (21).

5. The heat exchange fan protection structure according to claim 4, characterized in that: The rotating plate (43) is fixedly connected to a brush (45) on the side near the fixing block (21), and the brush (45) is attached to the outer wall of the protective ring (23).

6. The heat exchange fan protection structure according to claim 1, characterized in that: The end of the connecting rod (34) away from the insert rod (31) is hinged to the side wall of the knob (35), and the hinge point between the connecting rod (34) and the knob (35) is offset from the axis of the knob (35).

7. The heat exchange fan protection structure according to claim 1, characterized in that: The protective ring (23) is provided in at least three sets at equal intervals from the inside out, and the diameter gradually increases.

8. The heat exchange fan protection structure according to claim 1, characterized in that: The end of the support rod (22) away from the fixing block (21) is inserted into the inner wall of the slot (32), and the end of the insertion rod (31) away from the connecting rod (34) is inserted into the inner wall of the insertion hole (33).

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