Elevator door gap inspection device

By designing an elevator door gap inspection device including an inspection part, inspection plate and sensor, the problem of difficulty in performing accurate detection in narrow gaps in the prior art is solved, efficient and accurate gap detection and real-time feedback are achieved, and detection efficiency and stability are improved.

CN223021233UActive Publication Date: 2025-06-24SHANXI PROVINCIAL INSPECTION & TESTING CENT (SHANXI PROVINCIAL INST OF STANDARDS & METROLOGY TECH)
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Patent Information

Application Number
CN202422262964.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-06-24
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The existing elevator door gap detection methods are difficult to accurately detect in narrow gaps, and the gap size cannot be provided in real time during the inspection process, which leads to operators requiring multiple adjustments and measurements to ensure that the gap size meets the standards, reducing detection efficiency.

Method used

An elevator door gap inspection device is designed, including an inspection unit, a first inspection plate, a second inspection plate, a sensor, a mobile seat and a connecting seat. Through the movement of the second inspection board and real-time monitoring of the sensor, the size of the elevator door gap can be reflected indirectly and real-time feedback is provided when the gap is adjusted.

Benefits of technology

The device can be directly inserted into the narrow gap for detection, improving the accuracy and efficiency of detection. Real-time monitoring of the sensor and feedback from the alarm enable the operator to quickly understand the gap situation and make adjustments to ensure that the gap size meets the standards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of elevator inspection, and discloses an elevator door gap inspection device, which comprises an inspection part, a gap detection part and a gap detection part, the first inspection plate is mounted at the top of the inspection part, is used for being in contact with one side of an elevator door and serves as a fixed reference; and the second inspection plate is installed in the inspection groove, can move along the inspection groove and is close to or far away from the first inspection plate, and the second inspection plate is used for being matched with the first inspection plate to inspect the gap of the elevator door. According to the utility model, the first detection plate and the second detection plate can be directly inserted into a narrow gap for detection, no space is required to be reserved, the detection accuracy is improved, the sensor monitors the size of the gap in real time, real-time feedback is provided through the alarm, an operator is helped to rapidly adjust the position of a door leaf, and the detection efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the field of elevator inspection, in particular to an elevator door gap inspection device. Background Art

[0002] When inspecting the elevator door gap, according to the specifications, the landing sill of the landing door should be 2 - 5 mm higher than the finished floor, which can prevent water, dust, etc. from entering the elevator car interior, and is also convenient for maintenance and cleaning. The horizontal distance deviation between the landing sill and the car door sill should be between 0 - 3 mm, which can ensure the smooth closing and opening operations of the elevator door and avoid accidental collisions with passengers or goods. The gap between the passenger elevator door leaf and the door pocket should be between 1 - 6 mm, which can ensure the sealing performance of the elevator door, prevent noise and odor from entering the car interior, and also ensure the smooth opening and closing of the elevator door.

[0003] In the safety inspection and maintenance of elevators, the gap size between the elevator door leaf and the door pocket is a key parameter to ensure passenger safety and prevent items from being stuck. Currently, for the detection of this gap, the common method is to use two probe heads to move by inserting into the gap for distance detection.

[0004] Since the probe heads are usually centrally arranged on the tester, when the tester abuts against the door leaf surface, it is difficult for the probe heads to directly insert into the narrow gap for accurate detection. To solve this problem, the operator usually needs to first open the door leaf at a certain angle to provide enough space for the probe heads to enter the gap. Due to the design or installation limitations of the elevator door, it may not be feasible to reserve enough space on one side of the detector, which will cause the probe heads to be unable to smoothly insert into the gap, thus unable to conduct effective detection. When a deviation in the gap is detected, the position of the door leaf needs to be adjusted to correct the deviation. When adjusting the position of the door leaf, the inspection device cannot provide real-time feedback on the gap size, which results in the operator needing to adjust and measure multiple times to ensure that the gap size meets the standard, reducing the detection efficiency. Content of the Utility Model

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0006] An elevator door gap inspection device, comprising:

[0007] An inspection part, with an inspection groove opened at its top;

[0008] A first inspection plate, installed on the top of the inspection part, used to contact one side of the elevator door as a fixed reference;

[0009] A second inspection plate, installed in the inspection groove, movable along the inspection groove, and approaching or moving away from the first inspection plate, the second inspection plate is used to cooperate with the first inspection plate to inspect the elevator door gap;

[0010] A sensor, installed on the bottom wall of the inspection tank and located below the second inspection plate, is used to monitor the position change of the second inspection plate in real time, so as to indirectly reflect the size of the elevator door gap.

[0011] A moving seat, installed in the inspection part and connected to the bottom of the second inspection plate, is used to drive the second inspection plate to move along the inspection tank.

[0012] A connecting seat, installed on the moving seat, with one end connected to the second inspection plate, is used to ensure that the second inspection plate moves following the adjustment of the elevator door when the gap is adjusted.

[0013] The moving seat includes:

[0014] A moving groove, opened on the top of the moving seat, and the connecting seat is connected in the moving groove.

[0015] An elastic member, with one end installed on the bottom wall of the moving groove and the other end installed on the bottom of the connecting seat, is used to provide a reset force after the second inspection plate moves.

[0016] The inspection part includes:

[0017] An adjustment groove, opened on the bottom wall of the inspection tank, and the moving seat is connected in the adjustment groove.

[0018] A groove, opened on the bottom wall of the inspection tank, and the sensor is installed in the groove.

[0019] An alarm, installed on the outer circle of the inspection part and connected to the sensor, is used to emit an alarm signal when the gap size exceeds the preset range of the sensor.

[0020] The inspection part further includes:

[0021] A clamping part, installed on the inspection part, is used to fix the inspection part on the elevator door to ensure the stability of the inspection process.

[0022] A connecting groove is opened on the surface of the inspection part, the clamping part is connected in the connecting groove, a first lead screw penetrates through the connecting groove and is connected to the clamping part, and one end of the first lead screw is connected with a first knob.

[0023] A second lead screw penetrates through the bottom wall of the adjustment groove, one end of the second lead screw is connected to the moving seat, and the other end extends outside the inspection part and is connected with a second knob.

[0024] It further includes:

[0025] Two magnetic components, which are respectively installed on the first inspection plate and the second inspection plate, are used to adsorb and fit the first inspection plate and the second inspection plate on the elevator door.

[0026] The inspection part further includes:

[0027] A power supply, which is installed on the inspection part, is used to supply power to the alarm and the sensor.

[0028] The utility model provides an elevator door gap inspection device. Compared with the prior art, it has the following beneficial effects:

[0029] 1. The first inspection plate and the second inspection plate can be directly inserted into a narrow gap for detection without reserving space, which improves the accuracy of detection. The sensor monitors the size of the gap in real time and provides real-time feedback through the alarm, enabling the operator to quickly understand the gap situation and improving the detection efficiency.

[0030] 2. The clamping part ensures that the inspection part is fixed on the elevator door, reducing the measurement error and improving the stability of measurement. The magnetic components enable the inspection plates to be closely attached to the elevator door, reducing the operation difficulty during the measurement process and improving the convenience of use. The device can not only measure the size of the gap, but also provide real-time feedback when adjusting the elevator door, helping the operator quickly adjust the position of the door leaf to ensure that the gap size meets the standard. Description of the Drawings

[0031] Figure 1 It is a three-dimensional structure diagram proposed by the utility model.

[0032] Figure 2 It is a three-dimensional structure diagram of another perspective proposed by the utility model.

[0033] Figure 3 It is an exploded structure diagram proposed by the utility model.

[0034] Figure 4 It is a cross-sectional structure diagram proposed by the utility model.

[0035] Figure 5 It is a structure diagram of the use state proposed by the utility model.

[0036] The reference numerals in the drawings are:

[0037] 1. Inspection part; 101. Inspection groove; 102. Adjustment groove; 103. Connection groove; 104. First lead screw; 105. First knob; 106. Power supply; 107. Groove; 108. Sensor; 109. Alarm;

[0038] 2. First inspection plate;

[0039] 3. Second inspection plate;

[0040] 4. Magnetic component;

[0041] 5. Moving seat; 501. Moving groove; 502. Connecting seat; 503. Elastic member; 504. Second knob; 505. Second lead screw;

[0042] 6. Clamping portion. Detailed implementation manner

[0043] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model are described clearly and completely. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0044] Referring to Figures 1-5 , an elevator door gap inspection device includes:

[0045] Inspection department 1, with an inspection slot 101 opened at its top; a first inspection plate 2, installed at the top of the inspection department 1 for contacting one side of the elevator door. The first inspection plate 2 is arranged at the topmost end of the inspection department 1 and can directly contact the elevator door or the door pocket. The first inspection plate 2 and the second inspection plate 3 can be directly inserted into a narrow gap for precise detection without the need to provide space for a measuring head to enter the gap; a second inspection plate 3, installed in the inspection slot 101, can move along the inspection slot 101 and move closer to or away from the first inspection plate 2. The second inspection plate 3 is used to cooperate with the first inspection plate 2 to inspect the elevator door gap; a sensor 108, installed on the bottom wall of the inspection slot 101, located below the second inspection plate 3. The sensor 108 is used to monitor the position change of the second inspection plate 3 in real time, thereby indirectly reflecting the size of the elevator door gap. The sensor 108 uses a laser ranging sensor 108 or can also use an infrared ranging sensor 108; a moving seat 5, installed in the inspection department 1 and connected to the bottom of the second inspection plate 3. The moving seat 5 is used to drive the second inspection plate 3 to move along the inspection slot 101; a connecting seat 502 is installed on the moving seat 5. One end of the connecting seat 502 is connected to the second inspection plate 3. The connecting seat 502 is used to ensure that the second inspection plate 3 moves following the adjustment of the elevator door during gap adjustment. After inserting the first inspection plate 2 and the second inspection plate 3 into the gap, first attach the first inspection plate 2 to the door pocket, and then adjust the second inspection plate 3 to make it attach to the elevator door. Through the moving distance of the second inspection plate 3, the gap size can be calculated by the sensor 108. The gap size is equal to the distance from the first inspection plate 2 to the sensor 108 minus the distance from the second inspection plate 3 to the sensor 108. If it exceeds the set range value, it means the gap is large and needs to be adjusted. During the process of adjusting the elevator door, the second inspection plate 3 can always be attached to the elevator door, and the second inspection plate 3 will also move together after the elevator door is adjusted. The sensor 108 can always judge whether the gap meets the requirements and can provide feedback on the gap size in real time.

[0046] Refer to Figure 3 , the moving seat 5 includes: a moving slot 501, opened at the top of the moving seat 5, and the connecting seat 502 is connected in the moving slot 501; an elastic member 503, with one end installed on the bottom wall of the moving slot 501 and the other end installed on the bottom of the connecting seat 502. The elastic member 503 is used to provide a restoring force after the second inspection plate 3 moves. The elastic member 503 uses a stainless steel spring or can also use an alloy spring.

[0047] Refer to Figure 3 and Figure 4, the inspection unit 1 includes: an adjustment groove 102, opened on the bottom wall of the inspection groove 101, with a moving seat 5 connected therein; a groove 107, opened on the bottom wall of the inspection groove 101, with a sensor 108 installed therein; an alarm 109, installed on the outer circle of the inspection unit 1, connected to the sensor 108, and used to emit an alarm signal when the gap size exceeds the preset range of the sensor 108; a clamping part 6, installed on the inspection unit 1, used to fix the inspection unit 1 on the elevator door to ensure the stability of the inspection process; a power supply 106, installed on the inspection unit 1, used to supply power to the alarm 109 and the sensor 108. The power supply 106 uses a storage battery or can also use a dry battery. The alarm 109 uses a buzzer alarm 109 or can also use a light alarm 109.

[0048] Refer to Figure 1 , Figure 3 and Figure 4 , a connection groove 103 is opened on the surface of the inspection unit 1, with the clamping part 6 connected therein. A first lead screw 104 passes through the connection groove 103 and is connected to the clamping part 6. One end of the first lead screw 104 is connected to a first knob 105; a second lead screw 505 passes through the bottom wall of the adjustment groove 102, with one end connected to the moving seat 5 and the other end extending outside the inspection unit 1 and connected to a second knob 504. Rotating the second knob 504 drives the second lead screw 505 to rotate, the second lead screw 505 drives the moving seat 5 to move, and the moving seat 5 drives the connection seat 502 and the second inspection plate 3 to move together. Rotating the first knob 105 can drive the first lead screw 104 to rotate, and the first lead screw 104 drives the clamping part 6 to move in the connection groove 103. The clamping part 6 is used to fix the inspection unit 1 on the elevator door to ensure the stability of the inspection process.

[0049] Figure 3 , Figure 4 and Figure 5 , two magnetic attraction parts 4, respectively installed on the first inspection plate 2 and the second inspection plate 3, used to adsorb and fit the first inspection plate 2 and the second inspection plate 3 on the elevator door. Both of the two magnetic attraction parts 4 use neodymium iron boron magnets or can also use samarium cobalt magnets. When the first inspection plate 2 and the second inspection plate 3 are fitted on the elevator door, it can ensure that the first inspection plate 2 and the second inspection plate 3 are in close contact with the elevator door during the inspection process, reduce the gap, and improve the measurement accuracy.

[0050] During use, the operator places the inspection unit 1 at a suitable position near the elevator door. Rotating the first knob 105 can drive the rotation of the first lead screw 104. The first lead screw 104 drives the clamping part 6 to move within the connecting groove 103. The clamping part 6 is used to fix the inspection unit 1 on the elevator door to ensure the stability of the inspection process. The first inspection plate 2 is attached to the door pocket. The second inspection plate 3 is initially located within the inspection groove 101. Rotating the second knob 504 drives the rotation of the second lead screw 505. The second lead screw 505 drives the moving seat 5 to move. The moving seat 5 drives the connecting seat 502 and the second inspection plate 3 to move together until they are attached to one side of the elevator door. The sensor 108 monitors the position change of the second inspection plate 3 in real time, calculates the distances from the first inspection plate 2 and the second inspection plate 3 to the sensor 108, and thus obtains the gap size. The calculated gap size is compared with the preset range. If the gap size is within the preset range, the device indicates normal. If it exceeds the preset range, the alarm 109 emits a signal to prompt the operator that the gap is too large or too small. If the gap does not meet the requirements, the operator starts to adjust the position of the elevator door. During the adjustment process, since the second inspection plate 3 is always attached to the elevator door, the sensor 108 and the alarm 109 can provide real-time feedback on the gap size. The operator adjusts the position of the elevator door step by step according to the feedback result until the gap size meets the standard.

[0051] In summary, compared with the prior art, the following beneficial effects are achieved:

[0052] The first inspection plate 2 and the second inspection plate 3 can be directly inserted into a narrow gap for detection without the need to reserve space, improving the accuracy of detection. The sensor 108 monitors the gap size in real time and provides real-time feedback through the alarm 109, enabling the operator to quickly understand the gap situation and improving the detection efficiency.

[0053] The clamping part 6 ensures that the inspection unit 1 is fixed on the elevator door, reducing the measurement error and improving the stability of measurement. The magnetic part 4 enables the inspection plate to closely adhere to the elevator door, reducing the operation difficulty during the measurement process and improving the convenience of use. The device can not only measure the gap size but also provide real-time feedback when adjusting the elevator door, helping the operator quickly adjust the position of the door leaf to ensure that the gap size meets the standard.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An elevator door gap inspection device, characterized in that: include: An inspection portion (1) having an inspection slot (101) formed on the top thereof; A first inspection plate (2) mounted on the top of the inspection portion (1) and used to contact one side of the elevator door as a fixed reference; A second inspection plate (3) is installed in the inspection groove (101), can move along the inspection groove (101), and can move closer to or farther from the first inspection plate (2), the second inspection plate (3) being used to cooperate with the first inspection plate (2) to inspect the gap of the elevator door; A sensor (108) is installed on the bottom wall of the inspection slot (101) and is located below the second inspection plate (3). The sensor (108) is used to monitor the position change of the second inspection plate (3) in real time, thereby indirectly reflecting the size of the elevator door gap; A movable seat (5) is installed in the inspection part (1) and connected to the bottom of the second inspection plate (3). The movable seat (5) is used to drive the second inspection plate (3) to move along the inspection groove (101); A connecting seat (502) is mounted on the moving seat (5), one end of the connecting seat (502) is connected to the second inspection plate (3), and the connecting seat (502) is used to ensure that the second inspection plate (3) moves in accordance with the adjustment of the elevator door when the gap is adjusted.

2. An elevator door gap inspection device according to claim 1, characterized in that: The mobile seat (5) comprises: A movable groove (501) is provided on the top of the movable seat (5), and the connecting seat (502) is connected in the movable groove (501); An elastic member (503) has one end mounted on the bottom wall of the movable groove (501) and the other end mounted on the bottom of the connecting seat (502). The elastic member (503) is used to provide a restoring force after the second inspection plate (3) moves.

3. The elevator door gap inspection device according to claim 1, characterized in that: The inspection unit (1) comprises: An adjusting groove (102) is provided on the bottom wall of the inspection groove (101), and the movable seat (5) is connected in the adjusting groove (102); A groove (107) is formed on the bottom wall of the inspection groove (101), and the sensor (108) is installed in the groove (107); An alarm (109) is mounted on the outer ring of the inspection part (1) and connected to the sensor (108) for issuing an alarm signal when the gap size exceeds a preset range of the sensor (108).

4. The elevator door gap inspection device according to claim 1, characterized in that: The inspection unit (1) further comprises: The clamping part (6) is mounted on the inspection part (1) and is used to fix the inspection part (1) on the elevator door to ensure the stability of the inspection process.

5. An elevator door gap inspection device according to claim 4, characterized in that: A connecting groove (103) is provided on the surface of the inspection portion (1), the clamping portion (6) is connected in the connecting groove (103), a first screw rod (104) is connected through the connecting groove (103), the first screw rod (104) is connected to the clamping portion (6), and one end of the first screw rod (104) is connected to a first knob (105).

6. The elevator door gap inspection device according to claim 3, characterized in that: A second screw rod (505) is connected through the bottom wall of the adjustment slot (102); one end of the second screw rod (505) is connected to the movable seat (5), and the other end extends to the outside of the inspection part (1) and is connected to the second knob (504).

7. The elevator door gap inspection device according to claim 1, characterized in that: Also includes: Two magnetic suction members (4) are respectively mounted on the first inspection plate (2) and the second inspection plate (3) and are used to adsorb and adhere the first inspection plate (2) and the second inspection plate (3) to the elevator door.

8. The elevator door gap inspection device according to claim 3, characterized in that: The inspection unit (1) further comprises: A power supply (106) is installed on the inspection part (1) and is used to supply power to the alarm (109) and the sensor (108).