Elevator ventilation structure

Abstract

The utility model discloses an elevator ventilation structure, which relates to the technical field of elevators, and comprises an elevator car, the top end of the elevator car is fixedly connected with a fan body, the top end of the elevator car is provided with a ventilation slot, the ventilation slot is positioned below the air conveying end of the fan body, and the inner wall of the ventilation slot is provided with an annular circular slot. Through the special design shape of the interior of a ventilation groove, a filter frame can be upwards jacked, pressed and rotated, then balls are arranged, the filter frame can conveniently drive a filter screen to rotate, and when two fixing plates move into the corresponding fixing grooves and fall down, the two fixing plates enter the two fixing grooves, so that the two fixing plates are separated from the filter screen. According to the ventilation structure, the filter frame is limited and fixed, the filter screen can be installed and fixed without using bolts, meanwhile, the installation mode is convenient and fast, the defects that a traditional bolt is rusted, and the filter screen is inconvenient to disassemble and assemble due to screw slipping can be overcome, and the convenience of installation of the filter screen in the ventilation structure is further improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator ventilation structure. Background Technology

[0002] The elevator car is a box-shaped space used to carry and transport people and goods. The car is generally composed of main components such as the car floor, car walls, car top, and car door. Its internal net height should be at least 2m. During the use of the elevator car, the internal air may become stale, and passengers may feel chest tightness and discomfort. Therefore, the elevator car is generally equipped with a ventilation structure at the top.

[0003] Most existing elevator car ventilation structures are equipped with filters to filter the air. These filters are mostly bolted to the ventilation structure. However, after long-term use, the bolts may rust or strip, making it difficult to disassemble and install the filters. This affects the filter removal and installation work performed by the staff inside the ventilation structure. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an elevator ventilation structure that can solve the problem that the filter screen fixed by bolts inside the ventilation structure is inconvenient to disassemble and assemble.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an elevator ventilation structure, including an elevator car, a fan body fixedly connected to the top of the elevator car, a ventilation slot opened at the top of the elevator car, the ventilation slot being located below the air supply end of the fan body, an annular groove opened on the inner wall of the ventilation slot, a filter frame rotatably connected to the inner wall of the annular groove, a filter screen fixedly connected inside the filter frame, two fixing plates fixedly connected to the outer surface of the filter frame, a limit groove opened inside the two fixing plates, and fixing components provided inside the two fixing plates.

[0006] Preferably, the fixing component includes two movable columns, the outer surfaces of the two movable columns are slidably connected to the inner walls of the corresponding limiting grooves, and the top of each of the two movable columns is provided with a rotating groove, and a ball bearing is rotatably connected inside the rotating groove.

[0007] Preferably, the bottom ends of the two movable columns are fixedly connected to limit plates, the outer surfaces of the two limit plates are slidably connected to the inner walls of the corresponding limit grooves, and the bottom ends of the two limit plates are fixedly connected to pressure springs, the bottom ends of the two pressure springs are fixedly connected to the inner walls of the corresponding limit grooves.

[0008] Preferably, the bottom surface of the inner wall of the annular groove has two grooves and two fixing grooves.

[0009] Preferably, a fixed handle is fixedly connected to the bottom end of the filter frame, and the fixed handle is located below the filter screen.

[0010] Preferably, the outer surfaces of the two fixing plates are slidably connected to the inner walls of the corresponding fixing grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This multi-functional ventilation structure inside the elevator utilizes a specially designed shape inside the ventilation slot to push the rotating filter frame upwards. Then, the use of ball bearings allows the filter frame to easily rotate the filter screen. Next, when the two fixing plates move into their corresponding fixing slots and fall down, they enter the slots, thus limiting and fixing the filter frame. This allows the filter screen to be installed and fixed without bolts. This installation method is also more convenient, solving the problems of traditional bolts rusting, stripping, and inconvenience in filter screen removal and installation, further improving the ease of filter screen installation within the ventilation structure. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a three-dimensional structural diagram of an elevator ventilation structure according to the present invention;

[0015] Figure 2 This is a schematic diagram of the annular groove of this utility model;

[0016] Figure 3 This is a schematic diagram of the filter frame structure of this utility model;

[0017] Figure 4 This is a plan view of the limiting groove of this utility model;

[0018] Figure 5 This is a plan view of the fixing groove of this utility model;

[0019] Figure 6 For the present utility model Figure 3 Enlarged view of point A in the image.

[0020] Reference numerals in the attached drawings: 1. Elevator car; 2. Fan body; 3. Ventilation slot; 4. Annular groove; 5. Groove; 6. Fixing groove; 7. Filter frame; 8. Filter screen; 9. Fixing plate; 10. Limiting groove; 11. Moving column; 12. Rotating groove; 13. Ball bearing; 14. Fixed handle; 15. Limiting plate; 16. Pressure spring. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-6 This utility model provides a technical solution: an elevator ventilation structure, including an elevator car 1, a fan body 2 fixedly connected to the top of the elevator car 1. Since the fan body 2 is existing technology, it will not be described in detail here. A ventilation groove 3 is opened at the top of the elevator car 1. The ventilation groove 3 is located below the air supply end of the fan body 2. An annular groove 4 is opened on the inner wall of the ventilation groove 3. A filter frame 7 is rotatably connected to the inner wall of the annular groove 4. A filter screen 8 is fixedly connected inside the filter frame 7. Two fixing plates 9 are fixedly connected to the outer surface of the filter frame 7. Limiting grooves 10 are opened inside the two fixing plates 9. Fixing components are set inside the two fixing plates 9.

[0026] Furthermore, the fixing component includes two movable columns 11, the outer surfaces of the two movable columns 11 are slidably connected to the inner walls of the corresponding limiting grooves 10, and the top of each of the two movable columns 11 is provided with a rotating groove 12, and a ball bearing 13 is rotatably connected inside the rotating groove 12.

[0027] Furthermore, the bottom ends of the two movable columns 11 are fixedly connected to limit plates 15, the outer surfaces of the two limit plates 15 are slidably connected to the inner walls of the corresponding limit grooves 10, and the bottom ends of the two limit plates 15 are fixedly connected to pressure springs 16, the bottom ends of the two pressure springs 16 are fixedly connected to the inner walls of the corresponding limit grooves 10.

[0028] Furthermore, the bottom surface of the inner wall of the annular groove 4 has two grooves 5 and two fixing grooves 6.

[0029] Furthermore, a fixed handle 14 is fixedly connected to the bottom end of the filter frame 7, and the fixed handle 14 is located below the filter screen 8.

[0030] Furthermore, the outer surfaces of the two fixing plates 9 are slidably connected to the inner walls of the corresponding fixing grooves 6.

[0031] Furthermore, when the staff needs to install the filter screen 8, the two fixing plates 9 are slid upward into the two grooves 5. Then, the two ball bearings 13 will contact and press against the top surface of the inner wall of the annular groove 4. Then, the two moving columns 11 will retract on the inner wall of the two limiting grooves 10. Then, using the fixing handle 14, the filter frame 7 is rotated upward. Then, the setting of the ball bearings 13 makes it easy for the filter frame 7 to drive the filter screen 8 to rotate. Then, when the two fixing plates 9 move into the corresponding fixing grooves 6 and fall down, the two fixing plates 9 enter the two fixing grooves 6, thereby limiting and fixing the filter frame 7, so that the filter screen 8 can be easily installed and fixed inside the ventilation groove 3.

[0032] Furthermore, when the staff needs to disassemble the filter screen 8 installed inside the ventilation slot 3, they can use the fixed handle 14 to push the filter frame 7 upwards. Then, the two fixed plates 9 will simultaneously disengage from the inside of the two fixed slots 6. Then, by continuing to rotate the filter frame 7, the two fixed plates 9 can be slid out from the inside of the original two grooves 5. Then, the filter frame 7 and the filter screen 8 can be quickly and easily disassembled.

[0033] Furthermore, the specially designed shape inside the ventilation slot 3 allows the filter frame 7 to be pushed upwards and rotated. Then, the ball bearings 13 facilitate the rotation of the filter screen 8 by the filter frame 7. When the two fixing plates 9 move into the corresponding fixing slots 6 and fall down, the two fixing plates 9 enter the two fixing slots 6, thereby limiting and fixing the filter frame 7. This allows the filter screen to be installed and fixed without the need for bolts. At the same time, this installation method is more convenient and can solve the shortcomings of traditional bolts that rust, strip, and make it inconvenient to disassemble and install the filter screen. This further improves the convenience of installing the filter screen inside the ventilation structure.

[0034] Furthermore, by activating the fan body 2, the air will pass through the interior of the ventilation slot 3, then be filtered by the filter screen 8, and then be sent into the interior of the elevator car 1. The filter screen 8 can filter impurities in the air blown by the fan body 2, thereby improving the ventilation quality inside the elevator car 1.

[0035] Working principle: When the operator needs to install the filter screen 8, the two fixing plates 9 are slid upward into the two grooves 5. Then, the two ball bearings 13 will contact and press against the top surface of the inner wall of the annular groove 4. Then, the two moving columns 11 will retract on the inner wall of the two limiting grooves 10. Then, using the fixing handle 14, the filter frame 7 is rotated upward. Then, the setting of the ball bearings 13 makes it easy for the filter frame 7 to drive the filter screen 8 to rotate. Then, when the two fixing plates 9 move into the corresponding fixing grooves 6 and fall down, the two fixing plates 9 enter the two fixing grooves 6, thereby limiting and fixing the filter frame 7, so that the filter screen 8 can be easily installed and fixed inside the ventilation groove 3.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An elevator ventilation structure, comprising an elevator car (1), characterized in that: The top of the elevator car (1) is fixedly connected to a fan body (2). A ventilation slot (3) is provided at the top of the elevator car (1). The ventilation slot (3) is located below the air supply end of the fan body (2). An annular groove (4) is provided on the inner wall of the ventilation slot (3). A filter frame (7) is rotatably connected to the inner wall of the annular groove (4). A filter screen (8) is fixedly connected inside the filter frame (7). Two fixing plates (9) are fixedly connected to the outer surface of the filter frame (7). Limiting grooves (10) are provided inside the two fixing plates (9). Fixing components are provided inside the two fixing plates (9).

2. The elevator ventilation structure according to claim 1, characterized in that: The fixing component includes two movable columns (11), the outer surfaces of the two movable columns (11) are slidably connected to the inner walls of the corresponding limiting grooves (10), and the top of each of the two movable columns (11) is provided with a rotating groove (12), and a ball (13) is rotatably connected inside the rotating groove (12).

3. The elevator ventilation structure according to claim 2, characterized in that: The bottom ends of the two movable columns (11) are fixedly connected to limit plates (15), and the outer surfaces of the two limit plates (15) are slidably connected to the inner walls of the corresponding limit grooves (10). Among them, the bottom ends of the two limiting plates (15) are fixedly connected to pressure springs (16), and the bottom ends of the two pressure springs (16) are fixedly connected to the inner walls of the corresponding limiting grooves (10).

4. The elevator ventilation structure according to claim 1, characterized in that: The inner wall bottom surface of the annular groove (4) has two grooves (5) and two fixing grooves (6).

5. The elevator ventilation structure according to claim 1, characterized in that: The bottom end of the filter frame (7) is fixedly connected to a fixed handle (14), which is located below the filter screen (8).

6. The elevator ventilation structure according to claim 1, characterized in that: The outer surfaces of the two fixing plates (9) are slidably connected to the inner walls of the corresponding fixing grooves (6).

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