Dust removal device for freight elevator

Abstract

The utility model relates to the technical field of electromechanical equipment, concretely is a kind of dust removal device of freight elevator, including filter box, its one side intercommunication inlet pipe, the other side is equipped with exhaust window. Box is equipped with fan cover at corresponding exhaust window, is equipped with induced fan in. Fan cover other end is connected with internal thread cylinder, and hollow filter core with external thread cylinder is fixed with thread connection, and filter core is contained in box. Filter box top end is equipped with cover, both sides are equipped with transparent observation window, and bottom end is installed through the structure with fixed plate and inclined support. Inlet pipe other end intercommunication inlet hood, its bottom end is equipped with assembly plate. When induced fan operates, dust-containing air in car is sucked from inlet hood, enters filter box through inlet pipe, after being filtered by hollow filter core, clean air is discharged from exhaust window through filter core hollow channel, fan cover. The utility model is monitored filter core state by observation window, and it is convenient to disassemble and replace by means of thread connection structure, overall installation is stable, beneficial to the sustained purification and maintenance of dust in the interior of freight elevator.

Description

Technical Field

[0001] This utility model relates to the field of electromechanical equipment technology, specifically a dust removal device for a freight elevator. Background Technology

[0002] Freight elevators, especially in construction sites, mines, factory warehouses, or dusty industrial environments, generate significant amounts of dust during the transport of bulk goods (such as cement, sand, mineral powder, and grains). This dust not only permeates the elevator shaft and car, reducing visibility and affecting the safety and respiratory health of operators, but can also spread to other floors as the elevator moves, polluting the building environment. Furthermore, long-term dust accumulation on the elevator's mechanical and electrical components can accelerate wear and tear, affecting its normal service life and reliability. Therefore, equipping these freight elevators with specialized dust removal devices is a common requirement. The core function of these devices is to actively and continuously remove suspended dust from the car, guiding dust-laden air to a filtration unit for treatment, and then expelling or recirculating clean air. This aims to maintain a relatively clean elevator interior and shaft environment, ensuring hygienic conditions and operational safety during transport operations and mitigating potential damage to the equipment itself.

[0003] Existing dust removal devices for freight elevators often involve cumbersome filter replacement processes, requiring the disassembly of numerous components and hindering routine maintenance. Furthermore, the lack of an effective viewing window for directly observing the dust accumulation on the filter unit makes it difficult to determine the optimal maintenance time. Additionally, the relatively simple installation and fixing methods for dust removal devices within the vibration environment of elevator shafts may pose a potential risk of structural loosening over long-term operation, and the positioning and sealing of the air inlet may be inadequate, affecting dust collection efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal device for a freight elevator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dust removal device for a freight elevator includes a filter box. An air inlet pipe is fixedly installed and connected to one side of the filter box, and an exhaust window is opened on the other side of the filter box. A fan cover is fixedly installed inside the filter box opposite to the exhaust window. An exhaust fan is installed inside the fan cover via a bracket. An internally threaded cylinder is fixedly installed at the other end of the fan cover. An externally threaded cylinder is installed inside the internally threaded cylinder via threads. The externally threaded cylinder is fixedly installed at one end of a hollow filter element, which is housed inside the filter box.

[0006] Preferably, the top of the filter box is bolted with a cover, transparent observation windows are provided on both sides of the filter box, and a fixing plate is fixedly installed at the bottom of the filter box.

[0007] Preferably, the four corners of the fixing plate are provided with fixing holes, and a number of first diagonal bracing plates are fixedly installed between the four sides of the filter box and the fixing plate.

[0008] Preferably, the other end of the air inlet pipe is fixed downward and connected to the top of the air inlet hood, and an assembly plate is fixedly installed at the bottom of the air inlet hood.

[0009] Preferably, the four corners of the assembly plate are provided with assembly holes, and several second diagonal bracing plates are fixedly installed between the four sides of the air inlet hood and the top of the assembly plate.

[0010] Preferably, the bottom end of the air inlet hood protrudes from the assembly plate to form a boss, and an air inlet window is provided in the middle of the boss.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This dust removal device for a freight elevator uses a threaded connection structure between an external threaded cylinder at one end of a hollow filter element and an internal threaded cylinder fixed to the fan cover. This allows the filter element to be unscrewed and replaced as a whole. In addition, the transparent observation windows on both sides of the filter box allow maintenance personnel to visually judge the degree of contamination of the filter element without disassembling the device, thus achieving convenient maintenance operations and intuitive status monitoring.

[0012] The dust removal device for this freight elevator uses a fixing plate and fixing holes at the bottom of the filter box, and an assembly plate and assembly holes at the bottom of the air inlet hood. The device is reinforced with a first diagonal brace and a second diagonal brace at key stress points. This ensures that both the filter box and the air inlet hood can be securely installed on the top of the elevator, achieving reliable installation and long-term structural stability of the device under continuous operating vibration. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the filter box of this utility model; Figure 3 This is a schematic diagram of the connection of the hollow filter element of this utility model; Figure 4 This is a schematic diagram of the structure of the air inlet shroud of this utility model; Figure 5 This is a schematic diagram of the planar structure of the fan cover of this utility model.

[0014] In the diagram: 101, Filter box; 102, Air inlet pipe; 103, Exhaust window; 104, Fan cover; 105, Exhaust fan; 106, Internal threaded cylinder; 107, External threaded cylinder; 108, Hollow filter element; 109, Cover; 110, Transparent observation window; 111, Fixing plate; 112, Fixing hole; 113, First diagonal brace plate; 114, Air inlet cover; 115, Assembly plate; 116, Assembly hole; 117, Second diagonal brace plate; 118, Boss; 119, Air inlet window. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-4 As shown, this utility model provides a technical solution: A dust removal device for a freight elevator includes a filter box 101. An air inlet pipe 102 is fixedly installed and connected to one side of the filter box 101. An exhaust window 103 is opened on the other side of the filter box 101. A fan cover 104 is fixedly installed inside the filter box 101 opposite to the exhaust window 103. An exhaust fan 105 is installed inside the fan cover 104 by a bracket. An internally threaded cylinder 106 is fixedly installed at the other end of the fan cover 104. An externally threaded cylinder 107 is installed inside the internally threaded cylinder 106 by threads. The externally threaded cylinder 107 is fixedly installed at one end of a hollow filter element 108, which is housed inside the filter box 101.

[0017] The above solution provides a sealed space for accommodating filter components and providing air filtration. An inlet duct directs dusty external air into the filter box. An exhaust window allows for the removal of filtered clean air. A fan cover safely houses the exhaust fan and guides airflow. The exhaust fan generates airflow to attract and propel air through the entire filtration system. An internal threaded cylinder provides a fixed threaded interface for connecting the filter element. An external threaded cylinder mates with the internal threaded cylinder for detachable filter element installation. The hollow filter element filters dust particles from the air while allowing clean air to flow through its hollow internal channels.

[0018] In this embodiment, preferably, a cover 109 is bolted to the top of the filter box 101, transparent observation windows 110 are provided on both sides of the length of the filter box 101, and a fixing plate 111 is fixedly installed at the bottom of the filter box 101.

[0019] The above solutions allow for several advantages: the top of the filter box can be sealed with a cover to facilitate internal maintenance or component replacement; the cover can be detachably fixed to the filter box with bolts; the dust accumulation inside the filter box can be directly observed from the outside without opening the box; and the filter box can be installed on the top of the freight elevator using a mounting plate.

[0020] In this embodiment, preferably, fixing holes 112 are provided at the four corners of the fixing plate 111, and a plurality of first diagonal bracing plates 113 are fixedly installed between the four sides of the filter box 101 and the fixing plate 111.

[0021] The above solution allows for the use of fasteners to securely connect the fixing plate to the top structure of the freight elevator via the fixing holes, while the first diagonal brace enhances the connection strength between the side of the filter box and the fixing plate, thereby improving the overall structural stability.

[0022] In this embodiment, preferably, the other end of the air inlet pipe 102 is fixed downward and connected to the top of the air inlet cover 114, and an assembly plate 115 is fixedly installed at the bottom of the air inlet cover 114.

[0023] The above solution allows for the collection of dust-laden air inside the freight elevator and its guidance to the air intake duct via the air intake hood. The air intake hood can be installed on the top of the freight elevator via the assembly plate.

[0024] In this embodiment, preferably, the four corners of the assembly plate 115 are respectively provided with assembly holes 116, and a number of second diagonal bracing plates 117 are fixedly installed between the four sides of the air inlet shroud 114 and the top of the assembly plate 115.

[0025] The above solution allows for the assembly plate to be securely connected to the top structure of the freight elevator using fasteners via the assembly holes. The second diagonal brace plate enhances the connection strength between the side of the air inlet hood and the assembly plate, thereby improving the stability of the air inlet hood installation.

[0026] In this embodiment, preferably, the bottom end of the air inlet shroud 114 protrudes from the assembly plate 115 to form a boss 118, and an air inlet window 119 is provided in the middle of the boss 118.

[0027] The above solution allows the boss to be embedded in the pre-set slot on the top of the freight elevator to position the air intake hood and ensure that the air intake hood fits snugly against the top of the elevator. The air intake window allows air from inside the freight elevator to enter the internal space of the air intake hood.

[0028] In this embodiment, the dust removal device for a freight elevator requires the following steps: First, a mounting slot corresponding to the shape and size of the bottom boss 118 of the air inlet hood 114 needs to be made on the top structure of the freight elevator. Then, the boss 118 of the air inlet hood 114 is inserted into this slot from top to bottom, so that the bottom surface of the assembly plate 115 is tightly fitted to the upper surface of the freight elevator. Subsequently, fasteners are used to pass through the assembly holes 116 at the four corners of the assembly plate 115 to firmly fix the air inlet hood 114 to the top of the freight elevator. At the same time, the filter box 101 is installed through the fixing plate 111 at its bottom end. Using the fixing holes 112 at the four corners of the fixing plate 111, the entire filter box 101 is stably set on the top of the freight elevator. To enhance the structural stability during operation, several first diagonal bracing plates 113 installed between the four sides of the filter box 101 and the fixing plate 111 provide additional support. Similarly, several second diagonal bracing plates 117 installed between the four sides of the air inlet hood 114 and the top of the assembly plate 115 also serve to strengthen the installation rigidity of the air inlet hood 114.

[0029] When the device is powered on, the exhaust fan 105, mounted on a bracket inside the fan shroud 104, begins to rotate. The operation of the exhaust fan 105 creates negative pressure within the fan shroud 104 in front of it and in the cavity area inside the connected hollow filter element 108. This suction force serves as the power source for the airflow movement of the entire system. Under the pull of the negative pressure, the dusty air inside the freight elevator car is first drawn into the air inlet window 119 opened in the middle of the bottom protrusion 118 of the air inlet shroud 114. After the airflow enters the cavity of the air inlet shroud 114, it flows upward into the air inlet pipe 102, which is fixed and connected to the top of the air inlet shroud 114, and is then transported to the internal space of the filter box 101 through the air inlet pipe 102.

[0030] Dust-laden air enters the filter housing 101 and rushes directly towards the outer surface of the hollow filter element 108 housed within the housing. The filter media of the hollow filter element 108 intercepts and adsorbs the dust particles carried in the airflow onto its exterior, while the purified air penetrates the filter media and enters the internal cavity of the hollow filter element 108. The clean air flows along the internal channels of the hollow filter element 108 to the externally threaded cylinder 107 fixedly mounted at one end. The externally threaded cylinder 107 is screwed into the internally threaded cylinder 106 fixed to the other end of the fan shroud 104, allowing air to enter the internal area of ​​the fan shroud 104 through this threaded connection channel. Finally, driven continuously by the exhaust fan 105, the clean air exits the area where the fan shroud 104 is located through the exhaust window 103 opened on the other side of the filter housing 101, returning to the equipment environment or being discharged to a designated area, thus completing a continuous filtration cycle.

[0031] Throughout the operation, the transparent observation windows 110 installed on both sides of the filter box 101 provide a direct view, allowing operators to observe the degree of dust accumulation inside the filter box 101 and on the surface of the hollow filter element 108 in real time without opening the box. When excessive dust accumulation is observed through the observation windows, cleaning or replacement is required. In this case, the bolted cap 109 at the top of the filter box 101 can be removed first, and then the hollow filter element 108 can be directly screwed on, causing the external threaded cylinder 107 at one end to unscrew from the internal threaded cylinder 106 at one end of the fan cover 104. This allows the entire hollow filter element 108 to be removed from the filter box 101 for maintenance. This threaded connection design facilitates the periodic disassembly and replacement of the filter element. Through the coordinated dynamic operation of the aforementioned components, this device achieves continuous intake, filtration, and forced exhaust of air inside the freight elevator, effectively reducing the dust concentration in the air. Furthermore, its structural design balances installation stability, visualization of filtration efficiency, and ease of maintenance.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for a freight elevator, comprising a filter box (101), characterized in that: An air inlet pipe (102) is fixedly installed on one side of the width of the filter box (101) and connected to it. An exhaust window (103) is opened on the other side of the width of the filter box (101). A fan cover (104) is fixedly installed inside the filter box (101) opposite to the exhaust window (103). An exhaust fan (105) is installed inside the fan cover (104) through a bracket. An internally threaded cylinder (106) is fixedly installed at the other end of the fan cover (104). An externally threaded cylinder (107) is installed inside the internally threaded cylinder (106) through a thread. The externally threaded cylinder (107) is fixedly installed at one end of the hollow filter element (108). The hollow filter element (108) is housed inside the filter box (101).

2. The dust removal device for a freight elevator according to claim 1, characterized in that: The top of the filter box (101) is fitted with a cover (109) by bolts. Transparent observation windows (110) are provided on both sides of the length of the filter box (101). A fixing plate (111) is fixedly installed at the bottom of the filter box (101).

3. The dust removal device for a freight elevator according to claim 2, characterized in that: Fixing holes (112) are provided at the four corners of the fixing plate (111), and several first diagonal bracing plates (113) are fixedly installed between the four sides of the filter box (101) and the fixing plate (111).

4. The dust removal device for a freight elevator according to claim 1, characterized in that: The other end of the air inlet pipe (102) is fixed downward and connected to the top of the air inlet cover (114), and an assembly plate (115) is fixedly installed at the bottom of the air inlet cover (114).

5. A dust removal device for a freight elevator according to claim 4, characterized in that: Assembly holes (116) are provided at the four corners of the assembly plate (115), and several second diagonal bracing plates (117) are fixedly installed between the four sides of the air inlet hood (114) and the top of the assembly plate (115).

6. The dust removal device for a freight elevator according to claim 5, characterized in that: The bottom end of the air inlet hood (114) protrudes from the assembly plate (115) to form a boss (118), and an air inlet window (119) is provided in the middle of the boss (118).

Images