Elevator door gap measuring device
By designing an elevator door gap measuring device, the movement of a movable baffle is used to determine whether the elevator door gap is within the acceptable range. This solves the problems of cumbersome and inaccurate readings in existing technologies, and achieves efficient and accurate elevator door gap detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-07
AI Technical Summary
Existing methods for detecting elevator door gaps require multiple readings, which increases the workload of staff and may lead to inaccurate detection.
An elevator door gap measuring device was designed. The device determines whether the door gap is within the acceptable range by moving a movable baffle, avoiding manual reading. The movable baffle pushes the baffle corresponding to the small scale within the acceptable range without pushing the baffle of the large scale, thus simplifying the testing process.
This improved the efficiency and accuracy of testing, reduced the workload of staff, and ensured the reliability of test results.
Smart Images
Figure CN224470980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator door gap measurement technology, specifically to an elevator door gap measuring device. Background Technology
[0002] Elevator doors are a crucial component of elevators. Landing doors, part of the door system, are installed at the opening of the car. They serve as the entrance and exit for passengers or goods and are also part of the car's enclosed structure. As the elevator component directly facing passengers, the reliability of their sealing structure is inextricably linked to the safe operation of the elevator. Therefore, the reliability of landing door closure is a vital aspect of ensuring safe operation. However, the elevator itself often experiences door gaps due to foreign objects (bottle caps, trash, etc.) getting stuck between the doors, resulting in incomplete door closure and gaps. During elevator ascent, elevators with large door gaps are prone to shaking, falling, and other accidents. According to the "Elevator Supervision and Periodic Inspection Rules" (TSG T7001—2023), elevator door gaps should meet the following requirements:
[0003] The gaps between door panels and between door panels and pillars, lintels, and sills are 4–8 mm for passenger elevators and 4–10 mm for freight elevators. Current detection methods include… Figure 10 The measuring ruler shown is inserted into the gap between the elevator doors, and the reading on the scale is taken to determine whether the elevator door gap is within acceptable limits. However, the above testing method requires readings to determine whether the elevator door gap is within acceptable limits. If multiple tests are performed, it will greatly increase the workload of the staff and may lead to inaccurate readings. Therefore, an elevator door gap measuring device is proposed to solve the above problems. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this application provides an elevator door gap measuring device. This device pre-adjusts different movable baffles to the positions corresponding to the acceptable gap range values on a feeler gauge. If the gap is within the acceptable range, the device will push the movable baffle corresponding to the smaller scale but will not push the one corresponding to the larger scale. Simply observing the movement of the baffles is sufficient to determine if the door gap meets the requirements; no further reading of the gauge is needed. This method is convenient, time-saving, and labor-saving, improving work efficiency while ensuring accuracy.
[0005] The technical solution of this application is as follows:
[0006] An elevator door gap measuring device includes:
[0007] Mounting plate, wherein the mounting plate is a long, straight strip;
[0008] A gap measuring feeler gauge, wherein the gap measuring feeler gauge is vertically mounted on one side of the mounting plate;
[0009] The movable baffle is provided with at least two baffles, both of which are located on the measuring side of the gap measuring feeler gauge. The movable baffle can move within the range of the gauge body used for measurement by the gap measuring feeler gauge.
[0010] A movable shaft is connected between the movable baffle and the mounting plate. The movable shaft is fixedly connected to the movable baffle and slidably connected to the mounting plate through a hole shaft fit, and the sliding direction is the same as the axis direction of the movable shaft.
[0011] An adjusting nut, which is threadedly connected to one end of the movable shaft that passes through the mounting plate;
[0012] A baffle return spring is sleeved and installed on the movable shaft, with its two ends abutting against the mounting plate and the movable baffle.
[0013] The movable baffle is initially adjusted to be parallel to the mounting plate using the adjusting nut.
[0014] As a preferred embodiment of this utility model, the width of the gap measuring feeler gauge gradually narrows outward from the mounting plate, and the surface is marked with width dimension scale values.
[0015] As a preferred embodiment of this invention, the gap measuring feeler gauge is detachably connected to the mounting plate.
[0016] As a preferred embodiment of this utility model, the gap measuring feeler gauge is movably connected to the mounting plate; a length adjustment groove extending along the length direction is provided at the connection of the gap measuring feeler gauge, the mounting plate is provided with a folding mounting seat, and the length adjustment groove and the mounting seat are locked together by bolts.
[0017] As a preferred embodiment of this utility model, the gap measuring feeler gauge is movably connected to the mounting plate; a width adjustment groove extending along the width direction is provided at the connection of the gap measuring feeler gauge, the mounting plate is provided with a folding mounting seat, and the width adjustment groove and the mounting seat are locked together by bolts.
[0018] As a preferred embodiment of this invention, the surface of the movable baffle is provided with a passage notch, and the gap measuring feeler gauge always passes through the passage notch during the movement of the movable baffle relative to the gap measuring feeler gauge.
[0019] As a preferred embodiment of this invention, the multiple movable baffles can interlock with each other when they intersect during movement.
[0020] As a preferred embodiment of this invention, the adjusting nut is a lock-lock nut.
[0021] As a preferred embodiment of this utility model, a linear bushing is installed on the mounting plate at the opening through which the movable shaft passes, and the movable shaft is movably connected through the linear bushing.
[0022] The elevator door gap measuring device of this application detects elevator door gaps by pre-adjusting different movable baffles to the positions of the gap measuring feeler gauge scale corresponding to the acceptable range of door gap values. If the gap is within the acceptable range, the movable baffle corresponding to the smaller scale will be pushed, while the movable baffle corresponding to the larger scale will not be pushed. It is only necessary to observe the movement of the baffles to determine whether the door gap meets the requirements, without the need to read the scale. The device is easy to operate, saves time and effort, improves work efficiency, and ensures the accuracy of the detection. Attached Figure Description
[0023] Figure 1 This is a schematic diagram illustrating the measurement of excessively small door gaps using the elevator door gap measuring device of this application;
[0024] Figure 2 This is a schematic diagram illustrating the normal measurement of door gaps using the elevator door gap measuring device of this application;
[0025] Figure 3 This is a schematic diagram illustrating the measurement of excessive door gap using the elevator door gap measuring device of this application;
[0026] Figure 4 This is a schematic diagram of the structure of the gap measuring feeler gauge of the elevator door gap measuring device of this application, which can be adjusted in the length direction;
[0027] Figure 5 This is a schematic diagram of the structure of the elevator door gap measuring device of this application, which allows the gap measuring feeler gauge to be adjusted in the width direction;
[0028] Figure 6 This is a schematic diagram of an embodiment of the elevator door gap measuring device of this application, in which the movable baffle has a notch and can be interlocked with each other;
[0029] Figure 7 This is a schematic diagram of an embodiment of the elevator door gap measuring device of this application, in which the movable baffle has a notch and can be interlocked with each other;
[0030] Figure 8 This is a schematic diagram of an embodiment of the elevator door gap measuring device of this application, in which the movable baffle has a notch and can be interlocked with each other;
[0031] Figure 9 This is a schematic diagram of the structure of the mounting plate for the elevator door gap measuring device of this application, which is used to install a linear bushing.
[0032] Figure 10 This is a schematic diagram of the structure of an elevator door gap measuring device in the prior art.
[0033] In the figure, 1-mounting plate, 11-mounting seat, 12-linear bushing, 2-gap measuring feeler gauge, 21-length adjustment groove, 22-width adjustment groove, 3-movable baffle, 31-through notch, 4-movable shaft, 5-adjusting nut, 6-baffle return spring. Detailed Implementation
[0034] The present application will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present application.
[0035] like Figure 1 , Figure 2 , Figure 3 An elevator door gap measuring device includes:
[0036] Mounting plate 1, which is a long, straight strip;
[0037] Gap measuring feeler gauge 2 is vertically mounted on one side of mounting plate 1;
[0038] The movable baffle 3 is provided with at least two pieces, both of which are located on the measuring side of the gap measuring feeler gauge 2. The movable baffle 3 can move within the range of the gauge body used for measurement by the gap measuring feeler gauge 2.
[0039] The movable shaft 4 is connected between the movable baffle 3 and the mounting plate 1. The movable shaft 4 is fixedly connected to the movable baffle 3 and slidably connected to the mounting plate 1 through a hole shaft fit, and the sliding direction is the same as the axis direction of the movable shaft 4.
[0040] Adjusting nut 5 is threadedly connected to one end of movable shaft 4 that passes through mounting plate 1.
[0041] The baffle return spring 6 is sleeved and installed on the movable shaft 4, with its two ends abutting between the mounting plate 1 and the movable baffle 3;
[0042] The movable baffle 3 is initially adjusted to be parallel to the mounting plate 1 by adjusting the adjusting nut 5.
[0043] The number of movable baffles 3 installed is set according to the testing requirements. For a set of testing requirements within the acceptable range, two sets of movable baffles 3 are usually installed. Before testing, the two sets of movable baffles 3 are adjusted to the width dimension position of the gap measuring feeler gauge 2 corresponding to the low threshold and high threshold, respectively.
[0044] like Figure 1 , Figure 2 , Figure 3 The width of the gap measuring feeler gauge 2 gradually narrows from the mounting plate 1 outwards, and the surface is marked with the width dimension scale value.
[0045] like Figure 4 , Figure 5 The gap measuring feeler gauge 2 is detachably connected to the mounting plate 1.
[0046] like Figure 4 , Figure 5 The gap measuring feeler gauge 2 is movably connected to the mounting plate 1; the gap measuring feeler gauge 2 has a length adjustment groove 21 extending along the length direction at the connection point, and the mounting plate 1 has a folded mounting seat 11. The length adjustment groove 21 and the mounting seat 11 are locked together by bolts.
[0047] Therefore, the gap measuring feeler gauge 2 can be adjusted in length direction according to the compression and reset force of the baffle reset spring 6 corresponding to the movable baffle 3, ensuring a smooth detection process.
[0048] like Figure 4 , Figure 5 The gap measuring feeler gauge 2 is movably connected to the mounting plate 1; the gap measuring feeler gauge 2 has a width adjustment groove 22 extending along the width direction at the connection point; the mounting plate 1 has a folded mounting seat 11; the width adjustment groove 22 and the mounting seat 11 are locked together by bolts.
[0049] Therefore, the gap measuring feeler gauge 2 can be adjusted in the width direction according to the obstruction around the elevator door, avoiding interference or obstruction and ensuring a smooth testing process.
[0050] like Figure 6 , Figure 7 , Figure 8 The surface of the movable baffle 3 is provided with a through notch 31. During the movement of the relative gap measuring feeler gauge 2, the movable baffle 3 always passes through the through notch 31.
[0051] The passage notch 31 of the movable baffle 3 can be a closed ring or an open shape, as long as it does not interfere with the gap measuring feeler gauge 2 during the movement, and is not limited to the structure of the implementation method.
[0052] like Figure 6 , Figure 7 , Figure 8 Multiple movable baffles 3 can interlock with each other when they intersect during movement.
[0053] Therefore, the multiple movable baffles 3 will not interfere or obstruct each other during movement, ensuring the accuracy of the detection.
[0054] like Figure 1 , Figure 2 , Figure 3 Adjusting nut 5 is a lock nut.
[0055] As one implementation method, the adjusting nut 5 can be a special anti-loosening nut such as a Spiral nut, or multiple nuts can be stacked together to prevent loosening.
[0056] like Figure 9 A linear bushing 12 is installed on the mounting plate 1 at the opening through which the movable shaft 4 passes, and the movable shaft 4 is movably connected through the linear bushing 12.
[0057] The linear bushing 12 typically uses a linear bearing or a copper bushing with self-lubricating properties to ensure that the movable shaft 4 always maintains linear movement, avoids deflection of the movable baffle 3, and ensures the accuracy of the detection.
[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An elevator door gap measuring device, characterized in that, include: Mounting plate (1), wherein the mounting plate (1) is a long strip straight plate; A gap measuring feeler gauge (2) is vertically mounted on one side of the mounting plate (1); The movable baffle (3) is provided with at least two pieces, both of which are located on the measuring side of the gap measuring feeler gauge (2). The movable baffle (3) can move within the measuring range of the gap measuring feeler gauge (2). The movable shaft (4) is connected between the movable baffle (3) and the mounting plate (1). The movable shaft (4) is fixedly connected to the movable baffle (3) and slidably connected to the mounting plate (1) through a hole shaft fit. The sliding direction is the same as the axis direction of the movable shaft (4). Adjusting nut (5), the adjusting nut (5) is threadedly connected to one end of the movable shaft (4) that passes through the mounting plate (1); A baffle return spring (6) is sleeved and installed on the movable shaft (4), and its two ends abut against the mounting plate (1) and the movable baffle (3); The movable baffle (3) is initially adjusted to be parallel to the mounting plate (1) by the adjusting nut (5).
2. The elevator door gap measuring device according to claim 1, characterized in that: The width of the gap measuring feeler gauge (2) gradually narrows outward from the mounting plate (1), and the surface is marked with the width dimension scale value.
3. The elevator door gap measuring device according to claim 2, characterized in that: The gap measuring feeler gauge (2) is detachably connected to the mounting plate (1).
4. The elevator door gap measuring device according to claim 2, characterized in that: The gap measuring feeler gauge (2) is movably connected to the mounting plate (1); the gap measuring feeler gauge (2) is provided with a length adjustment groove (21) extending along the length direction at the connection point; the mounting plate (1) is provided with a folding mounting seat (11); the length adjustment groove (21) and the mounting seat (11) are locked together by bolts.
5. The elevator door gap measuring device according to claim 2, characterized in that: The gap measuring feeler gauge (2) is movably connected to the mounting plate (1); a width adjustment groove (22) extending along the width direction is provided at the connection of the gap measuring feeler gauge (2); the mounting plate (1) is provided with a folded mounting seat (11); the width adjustment groove (22) and the mounting seat (11) are locked together by bolts.
6. The elevator door gap measuring device according to claim 1, characterized in that: The surface of the movable baffle (3) is provided with a through notch (31). During the movement of the movable baffle (3) relative to the gap measuring feeler gauge (2), the gap measuring feeler gauge (2) always passes through the through notch (31).
7. The elevator door gap measuring device according to claim 1, characterized in that: The multiple movable baffles (3) can interlock with each other when they intersect during movement.
8. The elevator door gap measuring device according to claim 1, characterized in that: The adjusting nut (5) is a lock nut.
9. The elevator door gap measuring device according to claim 1, characterized in that: The mounting plate (1) has a linear bushing (12) installed at the opening through which the movable shaft (4) passes, and the movable shaft (4) is movably connected through the linear bushing (12).