Detection device for detecting foreign matters on elevator door

Abstract

The utility model discloses a detection device for detecting foreign matters on an elevator door, and relates to the technical field of application of detection, fault correction or safety devices in elevators. The detection device for detecting the foreign matters on the elevator door comprises a fixing piece, the cleaning assembly is arranged on the fixing part and comprises a threaded rod, a motor gear, a gear, a motor, a threaded sleeve, a cleaning broom, a connecting plate and a sliding rod, a motor screw is installed in the fixing part, a motor gear key pin is installed on an output shaft of the motor, the threaded sleeve rotationally penetrates through the fixing part, and the connecting plate is fixedly sleeved with the cleaning broom; by arranging the motor in the cleaning assembly, the motor is started to drive the cleaning broom to move downwards, and the cleaning broom moves downwards to drive sundries on the two elevator doors to move, so that the sundries are separated from the detection range of the sensor, misjudgment of the foreign matter detection device is avoided, and the detection accuracy of the sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of application of detection, fault correction or safety devices in elevators, and in particular to a detection device for checking foreign matter in elevator doors. Background Art

[0002] During the use of the elevator, especially the relative movement of the two elevator doors, sensors are often arranged between the elevator doors to prevent objects from being caught between the elevator doors. However, the phenomenon of objects being pinched by the closed elevator doors occurs. The Chinese utility model patent, with the authorization announcement number "CN211687836U", discloses a detection device for checking for foreign objects in elevator doors, including an elevator floor, two symmetrically arranged car doors are slidably connected to the elevator floor, two infrared sensors are arranged at the bottom ends of the two car doors, and the two infrared sensors are arranged to be inclined downward, an air guide strip is slidably embedded in the interior of the elevator floor, and the bottom of the air guide strip is transmission-connected to the elevator floor through an electric telescopic rod, and an air groove is provided in the interior of the air guide strip.

[0003] When the car door and the outer door move simultaneously, the infrared sensor fixed on the car door is linked to operate. Since the infrared sensor is tilted downward, the elevator floor and the external slide can be scanned and detected, and the scanning results are transmitted to the processor for comparative analysis, so as to determine the presence of foreign matter in the slide, thereby avoiding the closure of the elevator door being blocked by smaller foreign matter at the bottom. Due to the long-term use of the elevator, some dust, leaves and other debris are stuck between the two elevator doors. Especially when there are too many people in the elevator, it is easy for the infrared sensor to misjudge that the passenger is pushing the object, while the object only enters a part, thereby causing the elevator door foreign object detection device to misjudge. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a detection device for checking foreign objects in elevator doors, which can solve the problem that some debris such as dust and leaves are stuck between two elevator doors, especially when there are too many people in the elevator, which may cause the infrared sensor to misjudge that a passenger pushes an object, while the object only enters a part, thereby causing the detection device of the elevator door to misjudge the foreign object.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection device for checking foreign objects in elevator doors, comprising a fixing member;

[0006] The cleaning component is arranged on the fixing part, and the cleaning component includes a threaded rod, a motor gear, a gear, a motor, a threaded sleeve, a cleaning broom, a connecting plate and a sliding rod. The motor screw is installed inside the fixing part, the motor gear key pin is installed on the output shaft of the motor, the threaded sleeve rotates and passes through the fixing part, and the cleaning broom is fixedly sleeved on the connecting plate.

[0007] Preferably, the surface of the threaded rod is threadedly connected to the inner surface of the threaded sleeve, and the sliding rod slides through the fixing piece.

[0008] Preferably, the sliding rod is welded to the connecting plate, and the threaded rod is welded to the connecting plate.

[0009] Preferably, the gear is sleeved on the threaded sleeve, and the surface of the gear is threadedly connected to the surface of the motor gear.

[0010] Preferably, an elevator box is welded to the lower surface of the fixing member, two elevator doors are slidably connected to the surface of the elevator box, and a sensor is installed on the surface of the right elevator door.

[0011] Preferably, a collecting box is welded to the lower end of the elevator box body, and a sliding groove is provided on the surface of the collecting box.

[0012] Preferably, a baffle is slidably connected inside the sliding groove, an electric telescopic rod is screwed mounted on the surface of the baffle, and the other end of the electric telescopic rod is screwed mounted on the collection box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The detection device for checking for foreign objects in elevator doors is configured with a motor in a cleaning component. The motor is started to drive a cleaning broom to move downward. The downward movement of the cleaning broom drives the debris on the two elevator doors to move, thereby escaping from the detection range of the sensor, avoiding misjudgment of the foreign object detection device, and thus improving the detection accuracy of the sensor.

[0015] (2) The detection device for checking for foreign matter on the elevator door can collect the impurities cleaned by the cleaning broom by providing a collection box, thereby preventing the impurities from falling onto the elevator track and affecting the normal operation of the elevator, that is, avoiding secondary impact caused by debris on the two elevator doors and improving the thoroughness of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the interior of the fixing member of the utility model;

[0019] Figure 3 This is a schematic diagram of the connection relationship between the sensor and the elevator door of the utility model;

[0020] Figure 4 This is an overall schematic diagram of the collection box of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection relationship between the baffle and the electric telescopic rod of the utility model;

[0022] Figure 6 For this utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0023] Figure numerals: 1. elevator body; 2. elevator door; 3. fixing part; 4. sensor; 5. baffle; 6. collection box; 7. electric telescopic rod; 8. sliding groove; 9. threaded rod; 10. motor gear; 11. gear; 12. motor; 13. threaded sleeve; 14. cleaning broom; 15. connecting plate; 16. sliding rod. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] See also Figure 1-6, the utility model provides a technical solution: a detection device for checking foreign objects in elevator doors, comprising a fixing member 3;

[0029] The cleaning assembly is arranged on the fixing part 3, and the cleaning assembly includes a threaded rod 9, a motor gear 10, a gear 11, a motor 12, a threaded sleeve 13, a cleaning broom 14, a connecting plate 15 and a sliding rod 16. The motor 12 is screwed and installed inside the fixing part 3. The motor gear 10 is key-pinned and installed on the output shaft of the motor 12. The threaded sleeve 13 rotates and passes through the fixing part 3. The cleaning broom 14 is fixedly sleeved on the connecting plate 15.

[0030] The surface of the threaded rod 9 is threadedly connected to the inner surface of the threaded sleeve 13 , and the sliding rod 16 slides through the fixing member 3 .

[0031] The sliding rod 16 is welded to the connecting plate 15 , and the threaded rod 9 is welded to the connecting plate 15 .

[0032] The gear 11 is sleeved on the threaded sleeve 13 , and the surface of the gear 11 is threadedly connected to the surface of the motor gear 10 .

[0033] An elevator box 1 is welded to the lower surface of the fixing part 3, and two elevator doors 2 are slidably connected to the surface of the elevator box 1. A sensor 4 is installed on the surface of the right elevator door 2. The model of the sensor 4 is consistent with the model of the infrared sensor of "CN211687836U".

[0034] A collecting box 6 is welded to the lower end of the elevator housing 1 , and a sliding groove 8 is provided on the surface of the collecting box 6 .

[0035] The interior of the sliding groove 8 is slidably connected with a baffle plate 5 , the surface of the baffle plate 5 is screwed with an electric telescopic rod 7 , and the other end of the electric telescopic rod 7 is screwed on the collection box 6 .

[0036] When the two elevator doors 2 are closed, in order to prevent the residual materials in the two elevator doors 2 from affecting the detection of the sensor 4, the motor 12 is started. The start of the motor 12 drives the motor gear 10 to rotate, and the rotation of the motor gear 10 drives the gear 11 to rotate. The rotation of the gear 11 drives the threaded sleeve 13 to rotate, and the rotation of the threaded sleeve 13 drives the threaded rod 9 to move. The movement of the threaded rod 9 drives the connecting plate 15 to move downward. The downward movement of the connecting plate 15 drives the cleaning broom 14 to move downward to push the residual materials between the two elevator doors 2 to move downward to the inside of the collection box 6. After cleaning, the motor 12 is started to drive the cleaning broom 14 to move upward until it no longer contacts the two elevator doors 2, and then, the electric telescopic rod 7 is started to drive the baffle 5 to move to cover the sliding groove 8.

[0037] By setting up the motor 12 in the cleaning component, the motor 12 is started to drive the cleaning broom 14 to move downward. The downward movement of the cleaning broom 14 drives the debris on the two elevator doors 2 to move, thereby leaving the detection range of the sensor 4, avoiding misjudgment of the foreign object detection device, thereby improving the detection accuracy of the sensor 4.

[0038] By setting up the collection box 6, the impurities cleaned by the cleaning broom 14 can be collected to prevent the impurities from falling onto the elevator track and affecting the normal operation of the elevator, that is, to avoid secondary impact caused by debris on the two elevator doors 2 and improve the thoroughness of cleaning.

[0039] Working principle:

[0040] When the two elevator doors 2 are closed, in order to prevent the residual materials in the two elevator doors 2 from affecting the detection of the sensor 4, the motor 12 is started. The start of the motor 12 drives the motor gear 10 to rotate, and the rotation of the motor gear 10 drives the gear 11 to rotate. The gear 11 drives the threaded sleeve 13 to rotate. The rotation of the threaded sleeve 13 drives the threaded rod 9 to move. The threaded rod 9 drives the connecting plate 15 to move downward. The connecting plate 15 drives the cleaning broom 14 to move downward to push the residual materials between the two elevator doors 2 to move downward to the inside of the collection box 6. After cleaning, the motor 12 is started to drive the cleaning broom 14 to move upward until it is no longer in contact with the two elevator doors 2. Then, the electric telescopic rod 7 is started to drive the baffle 5 to move to cover the sliding groove 8.

[0041] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A detection device for checking foreign objects in elevator doors, characterized in that: include: Fixing member (3); The cleaning assembly is arranged on a fixing member (3), and comprises a threaded rod (9), a motor gear (10), a gear (11), a motor (12), a threaded sleeve (13), a cleaning broom (14), a connecting plate (15) and a sliding rod (16); the motor (12) is screwed inside the fixing member (3), a key pin of the motor gear (10) is installed on an output shaft of the motor (12), the threaded sleeve (13) rotates through the fixing member (3), and the cleaning broom (14) is fixedly sleeved on the connecting plate (15).

2. A detection device for checking foreign matter in elevator doors according to claim 1, characterized in that: The surface of the threaded rod (9) is threadedly connected to the inner surface of the threaded sleeve (13), and the sliding rod (16) slides through the fixing member (3).

3. A detection device for checking foreign objects in elevator doors according to claim 1, characterized in that: The sliding rod (16) is welded to the connecting plate (15), and the threaded rod (9) is welded to the connecting plate (15).

4. A detection device for checking foreign matter in elevator doors according to claim 1, characterized in that: The gear (11) is sleeved on the threaded sleeve (13), and the surface of the gear (11) is threadedly connected to the surface of the motor gear (10).

5. A detection device for checking foreign matter in elevator doors according to claim 1, characterized in that: The lower surface of the fixing member (3) is welded with an elevator housing (1), the surface of the elevator housing (1) is slidably connected to two elevator doors (2), and a sensor (4) is installed on the surface of the right elevator door (2).

6. A detection device for checking foreign matter in elevator doors according to claim 5, characterized in that: A collecting box (6) is welded to the lower end of the elevator box body (1), and a sliding groove (8) is provided on the surface of the collecting box (6).

7. A detection device for checking foreign matter in elevator doors according to claim 6, characterized in that: The interior of the sliding groove (8) is slidably connected with a baffle (5), the surface of the baffle (5) is screw-mounted with an electric telescopic rod (7), and the other end of the electric telescopic rod (7) is screw-mounted on the collection box (6).

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