Article falling prevention device at bottom of elevator car door

Abstract

The utility model relates to an elevator car door bottom article falling prevention device which comprises an elevator car and a car door, the bottom end of the elevator car is provided with a baffle mechanism capable of moving back and forth in a telescopic mode, the upper portion of the front end of the baffle mechanism is provided with a roller guide rail, and the bottom of the front end of the car door is provided with a plurality of roller mechanisms. Rollers of the roller mechanisms roll along the roller guide rails. The elevator has the beneficial effects that the baffle mechanism capable of stretching and retracting front and back is installed at the bottom end of the elevator car, the multiple roller mechanisms are installed at the bottom of the front end of the car door, and when the car door is closed, the baffle moves backwards under driving of the roller mechanisms, so that the baffle is shrunk to the position below the motor car and the car door; scraping between the baffle and the elevator shaft in the operation process of the elevator car is avoided; when the lift car door is opened, the baffle is driven by the compression spring to move forwards, so that the baffle blocks a gap between the lift car door opening and the lift shaft, and small articles are prevented from falling into the lift shaft when the lift car door is opened.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical elevator technical field especially relates to a device is prevented article to fall at elevator car door bottom. BACKGROUND

[0002] In order to ensure that the elevator car does not scratch the elevator shaft during operation, a certain width gap is reserved between the elevator car and the motor shaft. When the elevator car stops at a floor and the car door is opened, some small articles are easy to fall into the elevator shaft from the gap between the front of the elevator car door and the floor door. If the small articles fall into the elevator shaft, elevator maintenance personnel need to be present to stop the elevator operation to open the bottom floor door and take out the small articles. Sometimes the small articles will hang on the elevator shaft wall, affecting the normal operation of the elevator car. Therefore, when the car door is opened, the gap between the front of the elevator car door and the floor door brings risks to the safe operation of the elevator and the safety of the articles carried by the passengers. SUMMARY

[0003] The utility model aims at overcoming the above problems existing in the prior art, and provides a device for preventing articles from falling at the bottom of an elevator car door.

[0004] To achieve the above technical purposes and effects, the utility model realizes the following technical scheme:

[0005] A device for preventing articles from falling at the bottom of an elevator car door, comprising an elevator car and a car door, wherein the bottom end of the elevator car is provided with a front-and-rear telescopic baffle mechanism, the front upper end of the baffle mechanism is provided with a roller guide rail, and the bottom front end of the car door is provided with a plurality of roller mechanisms for driving the telescopic movement of the baffle mechanism, and the rollers of the roller mechanisms roll along the roller guide rail.

[0006] The baffle mechanism comprises a plurality of guide blocks, a plurality of guide rods, a plurality of compression springs, and a baffle, the guide blocks are bolted to the bottom end of the elevator car, each guide block is provided with a guide hole perpendicular to the plane of the car door, the guide rods are sleeved in the guide holes, one end of the guide rod is fixedly connected to the rear end of the baffle, the compression springs are sleeved on the guide rods between the guide blocks and the baffle, and the roller guide rail is located at the front upper end of the baffle.

[0007] The roller guide rail comprises a first straight guide rail segment located in front of the elevator car door, two symmetrical inclined guide rail segments, and two second straight guide rail segments located on both sides of the elevator car door, and the inclined guide rail segments are located between the first straight guide rail segment and the second straight guide rail segment.

[0008] The front lower end of the baffle is provided with a sealing strip mounting groove, and a sealing rubber strip is mounted in the sealing strip mounting groove.

[0009] Wherein, the roller mechanism includes roller mounting block, roller shaft, roller, the roller mounting block is installed at the front end lower part of the car door, the roller mounting block is provided with roller shaft hole which is through up and down, the upper part of the roller shaft is rotatably installed in the roller shaft hole, the top of the roller shaft is installed with a limit snap ring which prevents the roller shaft from separating from the roller shaft hole, the roller is rotatably installed at the lower part of the roller shaft, and the middle part of the roller shaft is sleeved with a separation ring which prevents the roller from being stuck.

[0010] Wherein, the front end bottom of the elevator car is provided with a pulley groove with a cross section of "convex" character, and the bottom end of the car door is provided with a plurality of pulley mechanisms which slide along the pulley groove.

[0011] Wherein, the pulley mechanism includes T-shaped pulley mounting block, pulley shaft and two pulleys, the front part of the pulley mounting block is installed at the bottom end of the car door by screws, the pulley shaft is rotatably installed at the rear part of the pulley mounting block, and the pulleys are rotatably installed at both ends of the pulley shaft, and the pulleys roll along the pulley groove.

[0012] The beneficial effects of the present application are that the baffle mechanism capable of front and rear telescopic movement is installed at the bottom end of the elevator car, a plurality of roller mechanisms are installed at the front end bottom of the car door, the baffle moves backward under the drive of the roller mechanism when the car door is closed, so that the baffle is retracted to the lower part of the motor car and the car door, avoiding the baffle from scratching the elevator shaft during the operation of the elevator car; the baffle moves forward under the drive of the compression spring when the car door is opened, so that the baffle blocks the gap between the elevator car door hole and the elevator shaft, thereby preventing small articles from falling into the elevator shaft in the open state of the car door; the safety of the elevator safe operation and the personal articles of the passengers is improved by setting the baffle mechanism and the roller mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings described herein are used to provide further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 It is a structure schematic view of the article falling prevention device at the bottom of the elevator door in the present application;

[0015] Figure 2 It is a structure schematic view of the baffle mechanism in the present application;

[0016] Figure 3 It is an exploded view of the baffle mechanism in the present application;

[0017] Figure 4 It is a structure schematic view of the roller mechanism in the present application;

[0018] Figure 5 is the exploded view of the roller mechanism in the utility model;

[0019] Figure 6 is the structural schematic view of the pulley mechanism in the utility model;

[0020] Mark explanation in the drawing: elevator car 100, pulley groove 1001, car door 200, baffle mechanism 1, guide block 11, guide rod 12, compression spring 13, baffle 14, sealing strip installation groove 141, guide hole 15, roller guide rail 16, first straight guide rail section 161, inclined guide rail section 162, second straight guide rail section 163, sealing rubber strip 17, roller mechanism 2, roller installation block 21, roller shaft hole 211, roller shaft 22, roller 23, limit snap ring 24, isolation ring 25, pulley mechanism 3, pulley installation block 31, pulley shaft 32, pulley 33. DETAILED DESCRIPTION

[0021] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] As Figures 1 to 6 shown, an elevator car door bottom article falling prevention device, including elevator car 100, car door 200.

[0023] The bottom end of elevator car 100 is installed with front and rear telescopic movement baffle mechanism 1, specifically, baffle mechanism 1 includes multiple guide blocks 11, multiple guide rods 12, multiple compression springs 13, a baffle 14, guide block 11 is installed with bolt at the bottom end of elevator car 100, a guide hole 15 perpendicular to the plane where car door 200 is located is formed in each guide block 11, guide rod 12 is sleeved in guide hole 15, one end of guide rod 12 is fixedly connected with the rear end of baffle 14, compression spring 13 is sleeved on the guide rod 12 between guide block 11 and baffle 14, and roller guide rail 16 is located on the upper portion of the front end of baffle 14.

[0024] The front end upper portion of baffle mechanism 1 is provided with roller guide rail 14, specifically, roller guide rail 16 includes first straight guide rail section 161 located in front of elevator car door hole, two symmetrical inclined guide rail sections 162, and two second straight guide rail sections 163 located on both sides of elevator car door hole, and inclined guide rail section 162 is located between first straight guide rail section 161 and second straight guide rail section 163.

[0025] The front end bottom of the car door 200 is provided with a plurality of roller mechanisms 2 for driving the telescopic movement of the baffle mechanism 1, specifically, the roller mechanism 2 comprises a roller mounting block 21, a roller shaft 22 and a roller 23, the roller mounting block 21 is mounted at the front end bottom of the car door 200, an upper and lower through roller shaft hole 211 is formed in the roller mounting block 21, the upper part of the roller shaft 22 is rotatably mounted in the roller shaft hole 211, a limiting snap ring 24 for preventing the roller shaft 22 from being separated from the roller shaft hole 211 is mounted at the top of the roller shaft 22, and the roller 23 is rotatably mounted at the lower part of the roller shaft 22, and an isolation ring 25 for preventing the roller 23 from being stuck is sleeved on the middle part of the roller shaft 22.

[0026] The roller 23 of the roller mechanism 2 rolls along the roller guide rail 14.

[0027] Design principle: when the car door is closed, the baffle is driven by the roller mechanism to move backward, so that the baffle is retracted below the motor car and the car door, avoiding the baffle from scratching the elevator shaft during the operation of the elevator car; when the car door is opened, the baffle is driven by the compression spring to move forward, so that the baffle blocks the gap between the elevator car door hole and the elevator shaft, thereby preventing small articles from falling into the elevator shaft in the opened state of the car door.

[0028] In order to further improve the sealing performance between the baffle 14 and the wall of the elevator shaft, a sealing strip mounting groove 141 is formed at the front end bottom of the baffle 14, and a sealing rubber strip 17 is mounted in the sealing strip mounting groove 141.

[0029] In order to ensure that the bottom of the car door is not pushed up by the baffle mechanism when the car door is opened and closed, a pulley groove 1001 with a "convex" cross section is formed at the front end bottom of the elevator car 100, and a plurality of pulley mechanisms 3 for sliding along the pulley groove 1001 are mounted at the bottom end of the car door 200. The pulley mechanism 3 comprises a T-shaped pulley mounting block 31, a pulley shaft 32 and two pulleys 33, the front part of the pulley mounting block 31 is mounted at the bottom end of the car door 200 by screws, the pulley shaft 32 is rotatably mounted at the rear part of the pulley mounting block 31, the pulleys 33 are rotatably mounted at both ends of the pulley shaft 32, and the pulleys 33 roll along the pulley groove 1001.

[0030] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An elevator car door bottom article drop prevention device comprising an elevator car, a car door, characterized by: The front and rear retractable baffle mechanism of the elevator car is provided with a roller guide rail at the upper front end, and the front bottom of the car door is provided with a plurality of roller mechanisms for driving the retractable movement of the baffle mechanism, and the rollers of the roller mechanisms roll along the roller guide rail.

2. The article drop-out prevention device of claim 1, wherein: The baffle mechanism comprises a plurality of guide blocks, a plurality of guide rods, a plurality of compression springs, and a baffle. The guide blocks are bolted to the bottom end of the elevator car, each guide block is provided with a guide hole perpendicular to the plane of the car door, the guide rod is sleeved in the guide hole, one end of the guide rod is fixedly connected to the rear end of the baffle, and the compression spring is sleeved on the guide rod between the guide block and the baffle. The roller guide rail is located at the upper front end of the baffle.

3. The article drop-out prevention device of claim 2, wherein: The roller guide rail comprises a first straight guide rail segment located in front of the elevator car door opening, two symmetrical inclined guide rail segments, and two second straight guide rail segments located on both sides of the elevator car door opening. The inclined guide rail segments are located between the first straight guide rail segment and the second straight guide rail segment.

4. The article drop-out prevention device of claim 2, wherein: A sealing strip mounting groove is formed in the lower front end of the baffle, and a sealing rubber strip is mounted in the sealing strip mounting groove.

5. The article drop out prevention device of claim 1, wherein: The roller mechanism comprises a roller mounting block, a roller shaft, and a roller. The roller mounting block is mounted at the lower front end of the car door, the roller mounting block is provided with a roller shaft hole extending vertically, the upper part of the roller shaft is rotatably mounted in the roller shaft hole, a limiting snap ring is mounted on the top of the roller shaft to prevent the roller shaft from being separated from the roller shaft hole, and the roller is rotatably mounted at the lower part of the roller shaft. An isolation ring is sleeved on the middle part of the roller shaft to prevent the roller from being stuck.

6. The article drop-out prevention device of claim 1, wherein: The front bottom of the elevator car is provided with a pulley groove with a "convex" cross section, and the bottom end of the car door is provided with a plurality of pulley mechanisms sliding along the pulley groove.

7. The article drop out prevention device of claim 6, wherein: The pulley mechanism comprises a T-shaped pulley mounting block, a pulley shaft, and two pulleys. The front part of the pulley mounting block is screwed to the bottom end of the car door, the pulley shaft is rotatably mounted at the rear part of the pulley mounting block, and the pulleys are rotatably mounted at both ends of the pulley shaft. The pulleys roll along the pulley groove.

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