Ventilation device for elevator shaft

Abstract

The utility model relates to the technical field of elevator shaft ventilation, and discloses a ventilation device for an elevator shaft, which comprises a device body, the device body comprises a ventilation pipeline main body, a fan and a filter screen, the interior of the ventilation pipeline main body is connected with the filter screen through a cleaning assembly, and the cleaning assembly is arranged in the ventilation pipeline main body. A communicating pipe is installed at the end of the ventilation pipeline body through a connecting assembly, a transmission shaft is installed at the bottom end of the inner wall of the communicating pipe through a bearing, the top end of the transmission shaft movably penetrates and extends out of the top end of the communicating pipe, and fan blades are fixedly installed outside the top end of the transmission shaft at equal intervals. By arranging the cleaning assembly and adopting the design, the fan blades are blown by wind, so that the transmission shaft is in a rotating state, the cam in the rotating state continuously abuts against the filter screen, the filter screen does reciprocating motion, the filter screen is in a vibration state, dust on the surface of the filter screen is conveniently shaken off, self-cleaning of the filter screen can be achieved in the working process, and the service life of the filter screen is prolonged. The cleaning and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator shaft ventilation, and more specifically to a ventilation device for an elevator shaft. Background Art

[0002] During the operation of the elevator, the elevator shaft needs to be ventilated to ensure the normal operation of the elevator. In order to prevent dust from entering the elevator shaft due to air circulation, a filter is set inside the ventilation duct to prevent external dust from entering the elevator shaft. As the use time increases, the filter will absorb and clog the dust, resulting in a decrease in ventilation volume. The staff is required to clean the filter regularly, which increases the use and maintenance cost of the device. Therefore, it is urgent to design a ventilation device for the elevator shaft. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a ventilation device for an elevator shaft to solve the problems existing in the above-mentioned background technology.

[0004] The utility model provides the following technical solutions: a ventilation device for an elevator shaft, comprising a device body, the device body comprising a ventilation duct body, a fan and a filter screen, the interior of the ventilation duct body is connected to the filter screen through a cleaning component, a connecting pipe is installed at the end of the ventilation duct body through a connecting component, a transmission shaft is installed at the bottom end of the inner wall of the connecting pipe through a bearing, the top end of the transmission shaft movably penetrates and extends to the outside of the top end of the connecting pipe, and the top end of the transmission shaft is equidistantly fixedly installed with fan blades, and a cam is fixedly installed on the outside of the transmission shaft inside the connecting pipe, and a mounting seat is fixedly installed at the top and bottom ends of the inner wall of the ventilation duct body, a compression spring is fixedly installed on one side of the mounting seat close to the filter screen, and the other end of the compression spring is connected to the outer surface of the filter screen, and the outer surface of the filter screen is slidably fitted with the inner surface of the ventilation duct body, and the fan blades are blown by wind, so that the transmission shaft is in a rotating state, and the cam in the rotating state continuously abuts against the filter screen, so that the filter screen performs reciprocating motion, and the filter screen is in a vibrating state, which is convenient for shaking off dust on the surface of the filter screen, and the filter screen can be self-cleaned during work, thereby reducing the cleaning and maintenance costs.

[0005] Furthermore, a guide rod is fixedly installed on one side of the mounting seat close to the filter, and a through hole is opened on one side of the filter through which the guide rod movably penetrates. When the filter moves, the filter slides left and right outside the guide rod, providing stable guidance for the movement of the filter.

[0006] Furthermore, the number of the cams is at least two, and the cams are equidistantly arranged on the outer surface of the transmission shaft.

[0007] Furthermore, a dust discharge port is provided at the bottom end of the ventilation duct body, and the dust discharge port and the filter are located on the same axis. The shaken dust is discharged to the outside of the ventilation duct body through the dust discharge port to avoid dust accumulation inside the ventilation duct body.

[0008] Furthermore, the connecting assembly includes a connecting frame, which is fixedly installed on the ends of the ventilation duct main body and the connecting pipe. A through hole is opened at the center of the connecting frame. The ventilation duct main body and the connecting pipe are locked by screws and nuts passing through the connecting frame. A detachable connection method is adopted, which makes it easy to clean and protect the components at the end of the ventilation duct main body after the connecting pipe is removed.

[0009] Furthermore, the number of the connecting components is two, and the two connecting components are fixedly installed at the top and bottom ends of the ventilation duct body and the connecting pipe.

[0010] Technical effects and advantages of the utility model:

[0011] 1. The utility model is provided with a cleaning component. This design enables the fan blades to be blown by wind, so that the transmission shaft is in a rotating state. The cam in the rotating state continuously abuts against the filter, so that the filter makes a reciprocating motion. The filter is in a vibrating state, which is convenient for shaking off the dust on the surface of the filter. The filter can be self-cleaned during operation, reducing the cleaning and maintenance costs.

[0012] 2. The utility model is provided with a connecting assembly. With this design, after the connecting pipe and the ventilation duct body are aligned, a screw is passed through the through hole in the center of the connecting frame and is locked by a nut to achieve the connection between the connecting pipe and the end of the ventilation duct body. During later maintenance, the connecting pipe and the ventilation duct body can be separated by removing the screw and nut on the connecting assembly, which is convenient for cleaning and maintenance of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic front view cross-sectional diagram of the structure of the present utility model.

[0014] Figure 2 It is a front view cross-sectional schematic diagram of the connecting pipe structure of the present utility model.

[0015] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged local structure in the middle.

[0016] Figure 4 It is a top view schematic diagram of the transmission shaft structure of the utility model.

[0017] The accompanying drawings are marked as follows: 100, device body; 110, ventilation duct body; 111, fan; 112, filter; 200, cleaning assembly; 210, connecting pipe; 211, transmission shaft; 212, fan blades; 213, cam; 214, mounting seat; 215, compression spring; 216, guide rod; 217, ash discharge port; 300, connecting assembly; 310, connecting frame. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0019] Example 1: Reference Figure 1-4 The utility model provides a ventilation device for an elevator shaft, including a device body 100, the device body 100 includes a ventilation duct body 110, a fan 111 and a filter 112, the interior of the ventilation duct body 110 is connected to the filter 112 through a cleaning component 200, the end of the ventilation duct body 110 is installed with a connecting pipe 210 through a connecting component 300, the bottom end of the inner wall of the connecting pipe 210 is installed with a transmission shaft 211 through a bearing, the top end of the transmission shaft 211 movably penetrates and extends to the top outside of the connecting pipe 210, the top outside of the transmission shaft 211 is equidistantly fixedly installed with fan blades 212, the outside of the transmission shaft 211 inside the connecting pipe 210 is fixedly installed with a cam 213, the ventilation duct body A mounting seat 214 is fixedly installed on the top and bottom of the inner wall of 110, and a compression spring 215 is fixedly installed on the side of the mounting seat 214 close to the filter 112, and the other end of the compression spring 215 is connected to the outer surface of the filter 112. The outer surface of the filter 112 and the inner surface of the ventilation duct body 110 are slidably fitted, and a guide rod 216 is fixedly installed on the side of the mounting seat 214 close to the filter 112. A through hole is provided on one side of the filter 112 through which the guide rod 216 movably penetrates. There are at least two cams 213, and the cams 213 are equidistantly arranged on the outer surface of the transmission shaft 211. An ash discharge port 217 is provided at the bottom end of the ventilation duct body 110, and the ash discharge port 217 and the filter 112 are located on the same axis.

[0020] The working principle of the first embodiment of the utility model is as follows: when in use, the wind blows the fan blades 212, so that the fan blades 212 drive the transmission shaft 211 to be in a rotating state, and drive the cam 213 to rotate. The cam 213 in the rotating state continuously abuts against the filter 112. As the cam 213 abuts, the filter 112 moves back and forth close to the mounting seat 214, so that when there is wind, the filter 112 is in a continuous vibration state, and the dust on the surface of the filter 112 can be shaken off by vibration to complete the clearing, and the shaken-off dust is discharged to the outside of the ventilation duct main body 110 through the dust discharge port 217.

[0021] Embodiment 2:

[0022] The difference between the second embodiment and the first embodiment is that the connecting component 300 includes a connecting frame 310, which is fixedly installed at the ends of the ventilation duct body 110 and the connecting pipe 210. A through hole is opened at the center of the connecting frame 310. There are two connecting components 300, which are fixedly installed at the top and bottom ends of the ventilation duct body 110 and the connecting pipe 210. After the connecting pipe 210 and the ventilation duct body 110 are aligned, a screw is passed through the through hole in the center of the connecting frame 310, and the nut is locked to achieve the connection between the connecting pipe 210 and the end of the ventilation duct body 110. During later maintenance, the connecting pipe 210 and the ventilation duct body 110 can be separated by removing the screw and nut on the connecting component 300, so as to facilitate the cleaning and maintenance of the filter 112.

[0023] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ventilation device for an elevator shaft, comprising a device body (100), wherein the device body (100) comprises a ventilation duct body (110), a fan (111) and a filter (112), characterized in that: The interior of the ventilation duct body (110) is connected to the filter screen (112) via a cleaning assembly (200); a connecting pipe (210) is installed at the end of the ventilation duct body (110) via a connecting assembly (300); a transmission shaft (211) is installed at the bottom end of the inner wall of the connecting pipe (210) via a bearing; the top end of the transmission shaft (211) movably penetrates and extends to the outside of the top end of the connecting pipe (210); and fan blades (212) are fixedly installed at equal intervals on the outside of the top end of the transmission shaft (211). A cam (213) is fixedly mounted on the outside of the transmission shaft (211) inside the connecting pipe (210); mounting seats (214) are fixedly mounted on the top and bottom ends of the inner wall of the ventilation duct body (110); a compression spring (215) is fixedly mounted on one side of the mounting seat (214) close to the filter screen (112); the other end of the compression spring (215) is connected to the outer surface of the filter screen (112); and the outer surface of the filter screen (112) and the inner surface of the ventilation duct body (110) are slidably fitted.

2. A ventilation device for an elevator shaft according to claim 1, characterized in that: A guide rod (216) is fixedly mounted on one side of the mounting seat (214) close to the filter screen (112), and a through hole movably penetrated by the guide rod (216) is provided on one side of the filter screen (112).

3. A ventilation device for an elevator shaft according to claim 1, characterized in that: The number of the cams (213) is at least two, and the cams (213) are arranged at equal distances on the outer surface of the transmission shaft (211).

4. A ventilation device for an elevator shaft according to claim 1, characterized in that: The bottom end of the ventilation duct body (110) is provided with an ash discharge port (217), and the ash discharge port (217) and the filter screen (112) are located on the same axis.

5. A ventilation device for an elevator shaft according to claim 1, characterized in that: The connection assembly (300) comprises a connection frame (310), wherein the connection frame (310) is fixedly mounted on the ends of the ventilation duct body (110) and the connecting pipe (210), and a through hole is provided at the center of each of the connection frames (310).

6. A ventilation device for an elevator shaft according to claim 1, characterized in that: The number of the connection components (300) is two, and the two connection components (300) are fixedly mounted on the top and bottom ends of the ventilation duct body (110) and the connecting pipe (210).

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