Ventilation filtering device for elevator

Abstract

The utility model discloses an elevator ventilation filtering device which comprises an elevator car, a ventilation opening is formed in the elevator car, a ventilation pipe is fixedly connected to the top in the elevator car, an installation clamping groove is formed in the front face of the ventilation pipe, a screen frame is installed in the installation clamping groove in a sliding mode, and a filter screen is fixedly connected in the screen frame. A connecting shaft is rotatably installed at the center of the screen frame, a cleaning brush is fixedly connected to the upper end of the connecting shaft, a groove is formed in the lower end of the connecting shaft, a support is fixedly connected into the ventilation pipe, and an exhaust fan is fixedly connected to the lower portion of the support. The blades and the transmission shaft are synchronously driven to rotate by starting the exhaust fan, the transmission shaft rotates to drive the connecting shaft to rotate, and then the cleaning brush is driven to rotate to clean dust accumulated on the surface of the filter screen, so that the regular cleaning time interval of the filter screen can be prolonged, meanwhile, the screen frame is slidably mounted in the mounting clamping groove, and bolts for fixing the screen frame are screwed off; the net frame can be pulled out directly in the lift car by pulling the net frame forwards, and later maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ventilation filtering device, especially an elevator ventilation filtering device. BACKGROUND

[0002] The elevator is an important product of our modern scientific and technological development, plays an important role in our daily life, gradually facilitates all aspects of our life, and the ventilation device of the elevator ventilates the elevator compartment to ensure sufficient oxygen in the elevator compartment.

[0003] A kind of ventilation device of elevator car with air filtering function is disclosed in Chinese patent publication CN213237844U, especially relates to elevator ventilation device technical field, including ventilation pipe, connecting pipe and filter pipe, ventilation pipe is concave character structure, connecting pipe is fixed in the middle of ventilation pipe upper end.The left and right sides of ventilation pipe are divided into exhaust passage and air inlet passage by sealing plate, so that exhaust and air inlet are carried out simultaneously, thereby improving the effect of ventilation and ventilation;Air is filtered through filter pipe before being discharged into elevator, so that air is filtered through sachet, primary filter screen, activated carbon filter screen and high-efficiency filter screen, not only can filter air, but also make air have fragrance, thereby improving the air quality discharged into elevator, solve the ventilation device of current elevator car, air is not discharged from elevator car or air is discharged into elevator car, ventilation passage is relatively single, leading to too poor ventilation effect, and do not have the problem of air filtration;

[0004] The above-mentioned ventilation device of elevator car with air filtering function has some problems when used, first, the surface of filter screen will accumulate some dust after long time use, and the filter screen needs to be cleaned regularly, but the filter screen is arranged on the upper side, so it cannot be directly cleaned in the car compartment. Utility model content

[0005] The utility model aims at providing a kind of ventilation filtering device of elevator to solve the problem in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of elevator ventilation filtering device, the car is equipped with ventilation opening on top, ventilation pipe is fixedly connected in the top of car, the front of ventilation pipe is equipped with installation clamping groove, net frame is slidably installed in installation clamping groove, filter screen is fixedly connected in net frame, connecting shaft is rotatably installed in the center of net frame, cleaning brush is fixedly connected on the upper end of connecting shaft, recess is equipped in the lower end of connecting shaft, bracket is fixedly connected in ventilation pipe, suction fan is fixedly connected on the lower surface of bracket, transmission shaft is rotatably installed in bracket, convex strip is fixedly connected on the upper end of transmission shaft, convex strip and recess are matched with each other, the lower end of transmission shaft is fixedly connected with the output end of suction fan, guide vane is rotatably installed in ventilation pipe and close to the position of lower end edge.

[0007] Preferably, fixed foot is fixedly installed in the position close to the upper end edge of the both sides of ventilation pipe, drive motor is fixedly connected in ventilation pipe, first bevel gear is fixedly connected on the output end of drive motor.

[0008] Preferably, shaft rod is rotatably installed in ventilation pipe, second bevel gear is fixedly connected on one end of shaft rod, second bevel gear and first bevel gear are matched with each other, semicircular gear is fixedly connected on the other end of shaft rod.

[0009] Preferably, limit sliding slot is equipped in ventilation pipe, reciprocating plate is slidably installed in limit sliding slot, first tooth slot is equipped on the upper surface of reciprocating plate, first tooth slot and semicircular gear are matched with each other, second tooth slot is equipped on the lower surface of reciprocating plate.

[0010] Preferably, rotating gear is fixedly connected on both ends of guide vane through shaft, rotating gear and second tooth slot are matched with each other.

[0011] Compared with prior art, the utility model has the beneficial effects that:

[0012] 1, by starting suction fan can synchronously drive vane and transmission shaft rotation, transmission shaft rotation can drive connecting shaft rotation, in turn drive cleaning brush rotation cleaning dust gathered on filter screen surface, can prolong the regular cleaning time interval of filter screen, simultaneously, net frame is slidably installed in installation clamping groove, and screw of fixed net frame is unscrewed, can be directly in the car, and forwardly pull net frame can be extracted, convenient for later maintenance.

[0013] 2, by starting drive motor can drive guide vane reciprocating motion by shaft rod and reciprocating plate transmission, constantly change wind direction, so that the air of extraction can be evenly delivered to each corner in car, improve the comfort of car passengers. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the schematic diagram of the utility model's installation to car structure.

[0015] Figure 2 It is the whole structure schematic view of the utility model;

[0016] Figure 3 It is the ventilation pipe structure schematic view of the utility model;

[0017] Figure 4 It is the ventilation pipe internal structure schematic view of the utility model;

[0018] Figure 5 It is the ventilation pipe internal structure schematic view of the utility model;

[0019] Figure 6 It is the net frame structure schematic view of the utility model.

[0020] In the drawing: 1, car; 101, ventilation opening; 2, ventilation pipe; 202, fixed foot; 203, installation clamping groove; 204, driving motor; 205, first bevel gear; 3, support; 301, transmission shaft; 302, convex strip; 4, exhaust fan; 5, air guide blade; 501, rotating gear; 6, shaft rod; 601, second bevel gear; 602, semicircular gear; 7, reciprocating plate; 701, first tooth groove; 702, second tooth groove; 8, net frame; 801, filter screen; 802, connecting shaft; 803, recess; 804, cleaning brush. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: an elevator ventilation filtering device, including car 1, ventilation opening 101 is set on car 1 upper surface, ventilation pipe 2 is fixedly connected in the top of car 1, installation clamping groove 203 is set in the front of ventilation pipe 2, net frame 8 is slidably installed in installation clamping groove 203, filter screen 801 is fixedly connected in net frame 8, connecting shaft 802 is rotatably installed at the center of net frame 8, cleaning brush 804 is fixedly connected on the upper end of connecting shaft 802, recess 803 is set in the lower end of connecting shaft 802, support 3 is fixedly connected in ventilation pipe 2, exhaust fan 4 is fixedly connected in the lower surface of support 3, transmission shaft 301 is rotatably installed in support 3, convex strip 302 is fixedly connected on the upper end of transmission shaft 301, convex strip 302 and recess 803 are mutually matched, transmission shaft 301 lower end is fixedly connected with the output end of exhaust fan 4, air guide blade 5 is rotatably installed in ventilation pipe 2 and close to the position of lower end edge.

[0023] In this embodiment, by installing the ventilation pipe 2 on the top of the car 1, the ventilation opening 101 communicates with the upper end of the ventilation pipe 2, the screen frame 8 is slidingly inserted into the installation clamping groove 203, when the filter screen 801 needs to be maintained, the bolt fixing the screen frame 8 is unscrewed, the screen frame 8 can be directly pulled out in the car, which is convenient for later maintenance. The motor on the air extractor 4 and the double-shaft motor are fixedly connected with the blade and the transmission shaft 301 at the output end, so that the start of the air extractor 4 will synchronously drive the transmission shaft 301 to rotate. The transmission shaft 301 rotates to drive the connecting shaft 802 to rotate through the convex strip 302 and the groove 803. The cleaning brush 804 rotates to scrape off the dust accumulated on the surface of the filter screen 801, so as to avoid the influence of the accumulated dust on the air inlet. The guide vane 5 can adjust the wind direction, so that the air blown into the car 1 can be uniformly blown into each position inside the car 1.

[0024] In order to realize the purpose of driving the two shaft rods 6 to rotate in opposite directions, the device adopts the following technical scheme: the fixed feet 202 are fixedly installed at the positions close to the upper end edges of the two sides of the ventilation pipe 2. The drive motor 204 is fixedly connected in the ventilation pipe 2. The first bevel gear 205 is fixedly connected at the output end of the drive motor 204. The shaft rod 6 is symmetrically and rotatably installed in the ventilation pipe 2. The second bevel gear 601 is fixedly connected to one end of the shaft rod 6. The second bevel gear 601 cooperates with the first bevel gear 205. The semicircular gear 602 is fixedly connected to the other end of the shaft rod 6.

[0025] The ventilation pipe 2 is fixedly connected to the top of the car 1 by the fixed feet 202 through bolts. The start of the drive motor 204 can drive the first bevel gear 205 to rotate. The first bevel gear 205 rotates and cooperates with the second bevel gear 601, so as to drive the two shaft rods 6 arranged symmetrically to rotate in opposite directions. The shaft rod 6 rotates to drive the semicircular gear 602 to rotate.

[0026] In order to realize the purpose of reciprocating rotation of the guide vane 5, the device adopts the following technical scheme: a limiting sliding groove is formed in the ventilation pipe 2. The reciprocating plate 7 is slidingly installed in the limiting sliding groove. The first tooth groove 701 is formed in the upper surface of the reciprocating plate 7. The first tooth groove 701 cooperates with the semicircular gear 602. The second tooth groove 702 is formed in the lower surface of the reciprocating plate 7. The rotating gear 501 is fixedly connected to the two ends of the guide vane 5 through a shaft. The rotating gear 501 cooperates with the second tooth groove 702.

[0027] The reciprocating plate 7 is slidably installed in the limiting sliding groove and can only move forward and backward, the semicircular gear 602 is semicircular, and the semicircular gears 602 are 180 degrees apart, when one semicircular gear 602 is in contact with the reciprocating plate 7, the other semicircular gear 602 is not in contact with the reciprocating plate 7, so that the two semicircular gears 602 can drive the reciprocating plate 7 to reciprocate, the second tooth groove 702 is matched with the rotating gear 501, and the reciprocating movement of the second tooth groove 702 drives the rotating gear 501 to reciprocate, so that the guide vane 5 is continuously reciprocated, and the wind direction is continuously adjusted.

[0028] The working principle and use process of the utility model are as follows: when in use, the device needs to be placed in a suitable position, starting the air extractor 4 will synchronously drive the blade and the transmission shaft 301 to rotate, the transmission shaft 301 rotating will drive the connecting shaft 802 to rotate, and then drive the cleaning brush 804 to rotate and clean the dust accumulated on the surface of the filter screen 801, the blade rotating will suck air into the car 1 through the air vent 101, starting the driving motor 204 can drive the two reciprocating plates 7 to reciprocate through the shaft rod 6, and then drive the guide vane 5 to reciprocate, the air sucked in can be uniformly delivered to each corner in the car 1.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An elevator ventilation filtering device comprising a car (1), a ventilation opening (101) being formed on the car (1), characterized in that: The top of the car (1) is fixed with ventilation pipe (2), the front of the ventilation pipe (2) is provided with mounting clamping groove (203), the mounting clamping groove (203) is provided with screen frame (8), the screen frame (8) is fixed with filter screen (801), the center of the screen frame (8) is rotatably installed with connecting shaft (802), the connecting shaft (802) is fixed with cleaning brush (804), the lower end of the connecting shaft (802) is provided with groove (803), the ventilation pipe (2) is fixed with bracket (3), the lower surface of the bracket (3) is fixed with exhaust fan (4), the bracket (3) is rotatably installed with transmission shaft (301), the upper end of the transmission shaft (301) is fixed with convex strip (302), the convex strip (302) and the groove (803) are matched with each other, the lower end of the transmission shaft (301) is fixed with the output end of the exhaust fan (4), the ventilation pipe (2) is rotatably installed with guide vane (5) near the lower end edge.

2. An elevator ventilation filter assembly according to claim 1, wherein: The both sides of the ventilation pipe (2) are fixedly installed with fixed foot (202) near the upper end edge, the ventilation pipe (2) is fixed with driving motor (204), the output end of the driving motor (204) is fixed with first bevel gear (205).

3. An elevator ventilation filter assembly according to claim 1, wherein: The ventilation pipe (2) is rotatably installed with shaft rod (6) symmetrically, one end of the shaft rod (6) is fixed with second bevel gear (601), the second bevel gear (601) and the first bevel gear (205) are matched with each other, the other end of the shaft rod (6) is fixed with semicircular gear (602).

4. An elevator ventilation filter assembly according to claim 1, wherein: The ventilation pipe (2) is provided with limiting sliding groove, the limiting sliding groove is slidably installed with reciprocating plate (7), the upper surface of the reciprocating plate (7) is provided with first tooth groove (701), the first tooth groove (701) and the semicircular gear (602) are matched with each other, the lower surface of the reciprocating plate (7) is provided with second tooth groove (702).

5. An elevator ventilation filter assembly as defined in claim 1, wherein: The both ends of the guide vane (5) are fixed with rotating gear (501) through shaft, the rotating gear (501) and the second tooth groove (702) are matched with each other.

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