Tool and method for adjusting swing-out distance between upper portion and lower portion of door leaf of electric sliding plug door

Abstract

The invention discloses a tool and method for adjusting the swing-out distance between the upper portion and the lower portion of a door leaf of an electric sliding plug door. The limiting pressing plate and the first supporting plate are arranged at the two ends of the sliding rail respectively, and the first supporting plate is perpendicular to the sliding rail; the sliding locking mechanism is arranged on the sliding rail in a sleeving manner; the second supporting plate is connected to one end of the sliding locking mechanism, the second supporting plate is configured to be opposite to and parallel to the first supporting plate, and scales on the sliding rail are used for measuring the distance between the second supporting plate and the first supporting plate. When the distance adjusting tool is used for adjusting the up-down swing-out distance, the working efficiency, the adjusting accuracy and the maintenance quality can be remarkably improved.

Description

Technical Field

[0001] This application belongs to the field of subway train maintenance technology, specifically relating to a tool and method for adjusting the upper and lower swing distance of an electric sliding door. Background Technology

[0002] Currently, the door systems commonly used in domestic subway trains include sliding doors, external doors, and concealed doors. Electric sliding doors, with their superior performance and wide application, hold nearly 80% of the market share, becoming the preferred door type for urban rail transit vehicles. Electric sliding doors employ a door structure with a unique movement and opening / closing mechanism. The door panels run along guide rails, remaining parallel to the train body when open and flush with and tightly fitted to the side wall of the train body when closed.

[0003] When vehicle maintenance personnel replace the lower control arm of the sliding door or adjust the upper and lower swing distance of the door, they need to work with the door open and ensure that there is a certain distance between the door and the exterior wall of the vehicle. During the adjustment process, the distance between the door slide rail and the roller should also be taken into account, and both should be within a reasonable range. Taking the adjustment of the lower swing distance of the door panel as an example, the process clearly stipulates: "When the door is fully opened, one mechanic (A) uses a wrench to loosen the two lower swing arm mounting nuts, while another mechanic (B) manually moves the door panel, causing the swing arm to move back and forth. Mechanic A uses a steel tape measure to measure the swing gap value. Mechanic B needs to manually move the door panel to ensure the distance from the outer surface of the door panel to the door sill sealing surface is 60-71mm. Then, the swing arm is moved up and down to adjust the gap between the bottom surface of the door slide rail and the upper surface of the lower swing arm. Mechanic A pre-tightens the two lower swing arm mounting nuts and rechecks whether the swing arm's data and condition meet the requirements. If not, the above steps are repeated until the requirements are met." Currently, vehicle maintenance personnel adjust the upper and lower swing distances of the sliding door panel according to the above regulations.

[0004] Based on the above adjustment process for the door swing distance, maintenance personnel face the following three shortcomings in actual maintenance: First, when using a steel tape measure to measure the door swing distance, it is positioned above or below the door, making it inconvenient for workers to read the measurement, and the reading error is relatively large; to reduce the error, it is often necessary to use the steel tape measure to measure multiple times and calculate the average value, which is time-consuming; Second, at least two people are required to complete the maintenance. During the maintenance work, one maintenance worker needs to fix the door swing position, and during the adjustment of the door position, another maintenance worker needs to support and fix the door. At the same time, because it is a manual operation, it is not possible to stably maintain the door swing position. The position of the swing arm will change slightly during the tightening of the bolts, requiring repeated adjustments to the swing arm data and status until the requirements are met. Thirdly, the dimensions of the car door are highly interconnected; adjusting a single dimension may affect the overall dimensional parameters. Loosening the two lower swing arm mounting nuts will also affect the gap between the bottom surface of the door's sliding track and the upper surface of the lower swing arm. Therefore, when adjusting the position of the door lower swing arm, it is necessary to ensure that the outward swing dimension of the door remains unchanged while also ensuring that the gap between the bottom surface of the door's sliding track and the upper surface of the lower swing arm is within a reasonable range. Summary of the Invention

[0005] The purpose of this application is to provide a tool and method for adjusting the vertical swing distance of an electric sliding door leaf. Using the tool of this application to adjust the vertical swing distance can significantly improve work efficiency, adjustment accuracy, and maintenance quality.

[0006] On the one hand, this application provides a tool for adjusting the vertical swing distance of an electric sliding door leaf, comprising: graduated slide rail; The limiting pressure plate and the first support plate are respectively disposed at both ends of the slide rail, and the first support plate is arranged perpendicular to the slide rail; A sliding locking mechanism fitted onto the slide rail; A second support plate is connected to one end of the sliding locking mechanism. The second support plate is configured to be opposite to and parallel to the first support plate. The scale on the slide rail is used to measure the distance between the second support plate and the first support plate. The sliding locking mechanism further includes: A mounting bracket is slidably mounted on the slide rail, and a fixed handle is fixedly connected to or integrally formed on the mounting bracket; the second support plate is connected to the end of the mounting bracket. The inner end is provided with a movable handle for the first pressure tongue. The movable handle is rotatably connected to the mounting bracket, and the movable handle is configured to be opposite to the fixed handle. A sliding unit includes a first spring and a sliding block sleeved on the slide rail; the two ends of the first spring are respectively connected to the sliding block and the mounting bracket; the first pressure tongue contacts the side end of the sliding block, and the first pressure tongue is configured such that when the movable handle is gripped, the first pressure tongue presses down on the side end of the sliding block; The locking and resetting unit includes a second spring and a locking plate sleeved outside the slide rail; the two ends of the second spring are respectively connected to the locking plate and the mounting bracket; the inner end of the locking plate is fixedly connected to the mounting bracket and is configured to press against the second spring at an angle and provide a preload to the second spring; the angle is such that the outer end of the locking plate is tilted upward. The first support plate, the second support plate, the first spring, the sliding block, the second spring, and the locking plate are arranged sequentially along the slide rail.

[0007] Specifically, the first support plate is E-shaped.

[0008] Specifically, the second support plate is U-shaped, and the slide rail passes through the U-shaped groove formed by the second support plate.

[0009] Preferably, the sliding locking mechanism further includes a fine-tuning mechanism, which includes a mounting housing sleeved outside the slide rail, a third spring, and a pressure tongue mechanism; the mounting housing is configured to tilt and press against the second spring, providing preload to the second spring, and the inner side of the bottom end of the mounting housing is fixedly connected to the mounting bracket via a connector; the locking plate is installed at the bottom end of the mounting housing, and the locking plate is tilted in the same direction as the mounting housing; the pressure tongue mechanism includes a connecting base and a second pressure tongue, the connecting base is sleeved outside the slide rail and located inside the mounting housing, and is fixedly connected to the locking plate; the third spring is installed inside the mounting housing, and both ends of the third spring are respectively connected to the mounting housing and the connecting base; the second pressure tongue is located outside the mounting housing and rotatably connected to the connecting base, and the pressure tongue mechanism is configured such that: when the second pressure tongue is pressed, the connecting base drives the inner side of the locking plate to move in the direction of compressing the third spring.

[0010] On the other hand, this application provides a method for adjusting the vertical swing distance of an electric sliding door leaf, which uses the above-mentioned distance adjustment tool for distance adjustment, including the following steps: First, loosen the upper or lower control arm mounting nuts; The second step is to attach the outer end face of the first support plate to the inner side wall of the door leaf, hold the movable handle tightly, and slide the sliding locking mechanism along the slide rail away from the first support plate until the outer end face of the second support plate is attached to the threshold sealing surface. The third step is to measure the distance between the second support plate and the first support plate. If the distance meets the preset distance requirement, proceed to the fourth step. Otherwise, grip the movable handle, slide the locking mechanism along the slide rail away from the first support plate, and open the door until the distance between the second support plate and the first support plate meets the preset distance requirement, then proceed to the fourth step. The fourth step is for maintenance personnel to adjust the position of the upper or lower swing arm and then pre-tighten the nuts on the upper or lower swing arm mounting base.

[0011] Compared with the prior art, the method of this application has the following advantages and beneficial effects: 1. Significantly improves adjustment accuracy: Conventional methods for adjusting the lower swing arm require maintenance personnel to manually fix its position, making it difficult to maintain stability. Furthermore, measuring the lower swing arm with a steel tape measure introduces errors, with an adjusted error of approximately 2mm. This application uses a distance adjustment tool for fixed limiting, ensuring the adjusted error is within the range of 0~0.5mm, greatly improving adjustment accuracy. 2. Significantly improves work efficiency: Reduces the time for adjusting the size of a single car door from 51 minutes / car / 2 people to 25.6 minutes / car / person, shortening the door adjustment time by 74.9%, while saving 50% of labor costs; 3. It can effectively ensure the quality of maintenance and reduce the failure rate of car doors; 4. It can extend the life of the car door. This application can quickly and accurately adjust the door leaf outward swing gap to the optimal position. The reasonable gap can reduce the wear of various parts of the car door, thereby extending the life of the car door. 5. Wide range of applications: This application is applicable to all sliding doors in urban rail transit vehicles, and there are currently two application cases in subway lines. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the distance adjustment tool shown in the embodiments of this application; Figure 2 for Figure 1 A partial view of point A in the middle; Figure 3 This is a structural schematic diagram of the distance adjustment tool from another perspective, as shown in an embodiment of this application; Figure 4 for Figure 3 A partial view of point B in the middle.

[0014] Figure description: Slide rail 100, first support plate 210, second support plate 220, limiting pressure plate 300, mounting bracket 410, fixed handle 411, movable handle 420, first pressure tongue 421, first spring 431, sliding pressure block 432, second spring 441, locking piece 442, mounting housing 451, third spring 452, second pressure tongue 453, connecting base 454. Detailed Implementation

[0015] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] See Figures 1-2 The image shows a distance adjustment tool according to an embodiment of this application, which includes: 100 graduated slide rail; The limiting pressure plate 300 and the first support plate 210 are respectively disposed at both ends of the slide rail 100, and the first support plate 210 is perpendicular to the slide rail 100; for ease of description, the end with the limiting pressure plate 300 is referred to as the top end of the slide rail 100 and the end with the first support plate 210 is referred to as the bottom end of the slide rail 100. A sliding locking mechanism fitted onto the slide rail 100; A second support plate 220 is connected to one end of the sliding locking mechanism. The second support plate 220 is configured to be opposite to and parallel to the first support plate 210. The scale on the slide rail 100 is used to measure the distance between the second support plate 22 and the first support plate 21. The sliding locking mechanism further includes: A mounting bracket 410 is slidably mounted on the slide rail 100, and a fixed handle 411 is fixedly connected to or integrally formed on the mounting bracket 410; the second support plate 220 is connected to the end of the mounting bracket 410; The inner end is provided with a movable handle 420 of the first pressure tongue 421. The movable handle 420 is rotatably connected to the mounting bracket 410, and the movable handle 420 is configured to be opposite to the fixed handle 411. The sliding unit further includes a first spring 431 and a sliding block 432; the first spring 431 is sleeved on the slide rail 100, one end of which is connected to the sliding block 432, and the other end is fixed to the mounting bracket 410; the sliding block 432 is sleeved on the slide rail 100, specifically, the sliding block 432 has a through hole adapted to the slide rail 100, through which the slide rail 100 passes; the first pressure tongue 421 contacts the outer end of the sliding block 432; the first pressure tongue 421 is configured such that when the movable handle 420 is gripped, the first pressure tongue 421 presses down on the outer end of the sliding block 432; A locking and resetting unit is used to perform locking and resetting functions. The locking and resetting unit includes a second spring 441 and a locking plate 442. The second spring 441 is the locking spring. The second spring 441 is sleeved on the slide rail 100, with one end connected to the locking plate 442 and the other end fixed to the mounting bracket 410. The locking plate 442 is sleeved on the slide rail 100. Specifically, the locking plate 442 has a through hole adapted to the slide rail 100, through which the slide rail 100 passes. The inner end of the locking plate 442 is fixedly connected to the mounting bracket 410 and is configured to press against the second spring 441 at an angle and provide preload to the second spring 441. The angle is such that the outer end of the locking plate 442 is angled upward. The first support plate 210, the second support plate 220, the first spring 431, the sliding block 432, the second spring 441, and the locking piece 442 are arranged sequentially along the slide rail 100.

[0017] In some embodiments, the first support plate 210 is E-shaped, and the slide rail 100 is connected to the middle of the side of the first support plate 210.

[0018] In some embodiments, the second support plate 220 is U-shaped, and the slide rail 100 passes through the U-shaped groove formed by the second support plate 220. The second support plate 220 can move along the slide rail 100 direction with the sliding locking mechanism.

[0019] In the locking and resetting unit, the locking plate 442 is configured to press the second spring 441 at an angle so that the second spring 441 is kept in a compressed state; the locking plate 442 is tilted by the elastic force of the second spring 441, and locking is achieved by the friction between the inner side of the through hole of the locking plate 442 and the slide rail 100.

[0020] In this application, when the movable handle 420 is gripped, the sliding locking mechanism is in a sliding state, which can drive the second support plate 220 to move along the slide rail 100; when the movable handle 420 is released, the sliding locking mechanism remains in a locked state and is fixed at a certain point on the slide rail 100; when the locking piece 442 is pressed, the locking is released.

[0021] The working principle of the sliding locking mechanism will be explained in detail below: In the reset state, the second support plate 220 is close to the first support plate 210; gripping the movable handle 420, the first pressure tongue 421 presses down on the outer end of the sliding block 432, the outer end of the sliding block 432 is pressed down, and the sliding block 432 compresses the first spring 431 in an inclined state. At this time, the rebound force generated by the first spring 431 can overcome the locking force of the locking reset unit, and the sliding locking mechanism is driven to slide through the friction between the inner side of the through hole on the sliding block 432 and the slide rail 100. Specifically, it slides away from the first support plate 210. The second support plate 220 and the first support plate 210 are separated. When the movable handle 420 is released, the friction between the inner side of the through hole of the locking piece 442 and the slide rail 100 is used to lock it. At this time, the sliding locking mechanism is fixed at a certain point on the slide rail 100. When the locking piece 442 is pressed down, the inner side of the through hole on the locking piece 442 is parallel to the slide rail 100, and the inner side of the through hole is no longer in contact with the slide rail 100. At this time, the friction between the inner side of the through hole and the slide rail 100 is eliminated, and the sliding locking mechanism slides until the second support plate 220 approaches the first support plate 210 and returns to the reset state.

[0022] As a preferred embodiment, the above distance adjustment tool further includes a fine-tuning mechanism 450, which includes a mounting housing 451 sleeved on the slide rail 100, a third spring 452, and a pressure tongue mechanism; the mounting housing 451 is inclined and presses against the second spring 441, providing preload to the second spring 441, and the inner side of the bottom end of the mounting housing 451 is fixedly connected to the mounting bracket 410 via a connector; the locking piece 442 is installed at the bottom end of the mounting housing 451; the pressure tongue mechanism includes a connecting base 454 and a second pressure tongue 453, the connecting base 454 being sleeved on the slide rail 100. The third spring 452 is installed inside the mounting housing 451 and is fixedly connected to the locking plate 442. The two ends of the third spring 452 are respectively connected to the mounting housing 451 and the connecting base 454. The second pressure tongue 453 is located outside the mounting housing 451 and is rotatably connected to the connecting base 454. The pressure tongue mechanism is configured such that when the second pressure tongue 453 is pressed, the connecting base 454 drives the inner side of the locking plate 442 to move in the direction of compressing the third spring 452, that is, drives the inner side of the locking plate 442 to move upward, thereby reducing the inclination of the locking plate 442.

[0023] The working principle of the fine-tuning mechanism 450 is as follows: pressing the second pressure tongue 453 gradually reduces the inclination of the locking plate 442, thereby reducing the locking force. The sliding locking mechanism can then move slightly closer to the first support plate 210 to achieve the fine-tuning purpose. When the inclination of the locking plate 442 is 0, the locking force disappears.

[0024] When adjusting the vertical distance of the electric sliding door using a distance adjustment tool, if the distance between the second support plate 220 and the first support plate 210 exceeds the preset distance requirement, the fine adjustment mechanism 450 can be used to adjust it back. That is, press the second pressure tongue 453, which presses the locking plate 442, and the sliding locking mechanism moves slightly closer to the first support plate 210, thereby reducing the distance between the second support plate 220 and the first support plate 210.

[0025] The methods for adjusting the vertical swing distance of an electric sliding door using the above distance adjustment tools include: (1) Place the outer end face of the first support plate 210 against the inner side wall of the door leaf, hold the movable handle 420 tightly, and slide the sliding locking mechanism along the slide rail 100 in a direction away from the first support plate 210 until the outer end face of the second support plate 220 is against the threshold sealing surface; measure the distance between the first support plate 210 and the second support plate 220 according to the scale on the slide rail 100, that is, the distance from the inner side wall of the door leaf to the threshold sealing surface; add this distance to the standard thickness of the door leaf 32mm, which is the distance from the outer side wall of the door leaf to the threshold sealing surface; (2) When the outer end face of the first support plate 210 is in contact with the inner side wall of the door leaf and the outer end face of the second support plate 220 is in contact with the threshold sealing surface, and the distance between the first support plate 210 and the second support plate 220 does not reach the preset distance requirement, hold the movable handle 420 tightly, and slide the locking mechanism along the slide rail 100 in a direction away from the first support plate 210 to open the door leaf; (3) When the outer end face of the first support plate 210 is in contact with the inner side wall of the door leaf and the outer end face of the second support plate 220 is in contact with the threshold sealing surface, and the distance between the first support plate 210 and the second support plate 220 exceeds the preset distance requirement, the second pressure tongue 453 is pressed, and the sliding locking mechanism moves slightly towards the first support plate 210, shortening the distance between the first support plate 210 and the second support plate 220.

[0026] When the distance between the first support plate 210 and the second support plate 220 reaches the preset distance requirement, the movable handle 420 is released, and the first support plate 210 and the second support plate 220 support and fix the door leaf.

[0027] It should be noted that, in this application, the opposing surfaces of the first support plate 210 and the second support plate 220 are referred to as the inner end surfaces of the first support plate 210 and the second support plate 220, while the non-opposing surfaces of the first support plate 210 and the second support plate 220 are referred to as the outer end surfaces of the first support plate 210 and the second support plate 220.

[0028] In the above method, the distance between the first support plate 210 and the second support plate 220 is the distance from the inner wall of the door leaf to the sill sealing surface. Based on the door leaf bottom swing distance adjustment process, it is known that the distance from the outer surface of the door leaf to the sill sealing surface should be 60-71mm. The distance between the first support plate 210 and the second support plate 220 plus the standard door leaf thickness of 32mm is the distance from the outer wall of the door leaf to the sill sealing surface. Therefore, the preset requirement for the distance from the inner wall of the door leaf to the sill sealing surface in this application is: the distance from the inner wall of the door leaf to the sill sealing surface plus the standard door leaf thickness of 32mm should be 60-71mm; that is, the distance between the first support plate 210 and the second support plate 220 plus the standard door leaf thickness of 32mm should be 60-71mm.

[0029] Furthermore, embodiments of this application provide a specific implementation process for the method of this application, the specific steps of which are as follows: First, loosen the upper or lower control arm mounting nuts; The second step is to lay the distance adjustment tool flat, attach the outer end face of the first support plate 210 to the inner side wall of the door leaf, hold the movable handle 420 tightly, and slide the sliding locking mechanism along the slide rail 100 in a direction away from the first support plate 210 until the outer end face of the second support plate 220 is attached to the threshold sealing surface. Third, release the movable handle 420 and measure the distance between the second support plate 220 and the first support plate 210. If the distance meets the preset distance requirement, proceed to the fourth step; otherwise, grip the movable handle 420 tightly, slide the locking mechanism along the slide rail 100 away from the first support plate 210, and open the door until the distance between the second support plate 220 and the first support plate 210 meets the preset distance requirement, then proceed to the fourth step. Fourth step, keep the loosened movable handle 420 so that the sliding locking mechanism is in the locked state. The first support plate 210 and the second support plate 220 play the role of supporting and fixing the door leaf. At this time, the maintenance personnel adjust the position of the upper or lower swing arm and then pre-tighten the nuts of the upper or lower swing arm mounting seat.

[0030] It should be noted that the maintenance personnel adjust the position of the upper or lower control arm by moving the upper or lower control arm up and down so that the gap between the bottom surface of the door slide rail and the upper surface of the lower control arm or the gap between the top surface of the door slide rail and the lower surface of the upper control arm meets the preset requirements.

[0031] Using the method described in this application to adjust the vertical swing distance of an electric sliding door requires only one maintenance worker to complete the measurement and adjustment of the vertical swing distance, which can greatly save manpower and improve efficiency, accuracy and maintenance quality.

[0032] To verify the technical effect of this application, the method of this application is compared with the distance adjustment process mentioned in the background art (hereinafter referred to as the "conventional method"): one group of personnel used the conventional method to adjust the lower outward swing size of a single car door, and another group of personnel used the method of this application to adjust the lower outward swing size of a single car door. The adjustment target for both was 68mm. Seven test comparison data were collected and listed in Table 1.

[0033] Table 1. Adjustment data for the lower outward swing dimension of a single door leaf.

[0034] As shown in Table 1, the minimum error of adjusting the lower outer swing dimension using conventional methods is 1.5 mm, and the average error is 1.78 mm; while the minimum error of adjusting the lower outer swing dimension using the method of this application is 0 mm, and the average error is 0.27 mm. Clearly, this application greatly improves the accuracy of adjusting the lower outer swing dimension.

[0035] To verify the efficiency of this application, a car of a certain urban rail transit line was selected, which has 10 pairs of doors (i.e., 20 doors). The conventional method and the method of this application were used to adjust the downward swing distance of the door panels of the 10 pairs of doors in the car, and the operation time was recorded and listed in Table 2.

[0036] Table 2. Work Time Data

[0037] As shown in Table 2, the conventional method requires two maintenance personnel and takes an average of 51 minutes per section. The method proposed in this application only requires one maintenance personnel and takes an average of 25.6 minutes per section. The method proposed in this application can shorten the maintenance time by 74.9%. At the same time, optimizing the two-person operation into a single-person operation can also save 50% of the labor cost and greatly improve the maintenance efficiency.

[0038] Statistics on electric train door malfunctions on a certain urban rail transit line from January 2021 to January 2023 show that 3 mainline malfunctions and 5 depot malfunctions were caused by improper adjustment of the door's outward swing distance. After adjusting the door panel outward swing gap using the method described in this application, no similar malfunctions occurred on the mainline or in the depot from February 2023 to December 2024. The comparison shows that the method described in this application can effectively ensure maintenance quality and reduce the mainline malfunction rate.

[0039] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A tool for adjusting the vertical swing distance of an electric sliding door panel, characterized in that, include: graduated slide rail; The limiting pressure plate and the first support plate are respectively disposed at both ends of the slide rail, and the first support plate is arranged perpendicular to the slide rail; A sliding locking mechanism fitted onto the slide rail; A second support plate is connected to one end of the sliding locking mechanism. The second support plate is configured to be opposite to and parallel to the first support plate. The scale on the slide rail is used to measure the distance between the second support plate and the first support plate. The sliding locking mechanism further includes: A mounting bracket is slidably mounted on the slide rail, and a fixed handle is fixedly connected to or integrally formed on the mounting bracket; the second support plate is connected to the end of the mounting bracket. The inner end is provided with a movable handle for the first pressure tongue. The movable handle is rotatably connected to the mounting bracket, and the movable handle is configured to be opposite to the fixed handle. A sliding unit includes a first spring and a sliding block sleeved on the slide rail; the two ends of the first spring are respectively connected to the sliding block and the mounting bracket; the first pressure tongue contacts the side end of the sliding block, and the first pressure tongue is configured such that when the movable handle is gripped, the first pressure tongue presses down on the side end of the sliding block; The locking and resetting unit includes a second spring and a locking plate sleeved outside the slide rail; the two ends of the second spring are respectively connected to the locking plate and the mounting bracket; the inner end of the locking plate is fixedly connected to the mounting bracket and is configured to press against the second spring at an angle and provide a preload to the second spring; the angle is such that the outer end of the locking plate is tilted upward. The first support plate, the second support plate, the first spring, the sliding block, the second spring, and the locking plate are arranged sequentially along the slide rail.

2. The electric sliding door leaf upper and lower swing distance adjustment tool as described in claim 1, characterized in that: The first support plate is E-shaped.

3. The electric sliding door leaf upper and lower swing distance adjustment tool as described in claim 1, characterized in that: The second support plate is U-shaped, and the slide rail passes through the U-shaped groove formed by the second support plate.

4. The electric sliding door leaf upper and lower swing distance adjustment tool as described in claim 1, characterized in that: The sliding locking mechanism also includes a fine-tuning mechanism, which includes a mounting housing sleeved outside the slide rail, a third spring, and a pressure tongue mechanism; The mounting housing is configured to tilt and press against the second spring, providing preload to the second spring, and the inner side of the bottom end of the mounting housing is fixedly connected to the mounting bracket via a connector; the locking plate is installed at the bottom end of the mounting housing, and the locking plate is tilted in the same direction as the mounting housing; the pressure tongue mechanism includes a connecting base and a second pressure tongue, the connecting base is sleeved outside the slide rail and located inside the mounting housing, and is fixedly connected to the locking plate; the third spring is installed inside the mounting housing, and both ends of the third spring are respectively connected to the mounting housing and the connecting base; The second pressure tongue is located outside the mounting housing and is rotatably connected to the connecting base. The pressure tongue mechanism is configured such that when the second pressure tongue is pressed, the connecting base drives the inner side of the locking plate to move in the direction of compressing the third spring.

5. A method for adjusting the vertical swing distance of an electric sliding door leaf, characterized in that: Distance adjustment using the distance adjustment tool according to any one of claims 1 to 4, comprising: Place the outer end face of the first support plate against the inner side wall of the door leaf, grip the movable handle, and slide the sliding locking mechanism along the slide rail away from the first support plate until the outer end face of the second support plate is against the threshold sealing surface; measure the distance between the first support plate and the second support plate according to the scale on the slide rail, that is, the distance from the inner side wall of the door leaf to the threshold sealing surface.

6. A method for adjusting the vertical swing distance of an electric sliding door leaf, characterized in that: Distance adjustment using the distance adjustment tool according to any one of claims 1 to 4, comprising: When the outer end face of the first support plate is in contact with the inner side wall of the door leaf, the outer end face of the second support plate is in contact with the threshold sealing surface, and the distance between the first support plate and the second support plate does not reach the preset distance requirement, grip the movable handle, and the sliding locking mechanism will slide along the slide rail in a direction away from the first support plate to open the door leaf.

7. A method for adjusting the vertical swing distance of an electric sliding door leaf, characterized in that: The distance adjustment tool described in claim 4 is used to perform distance adjustment, including: When the outer end face of the first support plate is in contact with the inner side wall of the door leaf, the outer end face of the second support plate is in contact with the threshold sealing surface, and the distance between the first support plate and the second support plate exceeds the preset distance requirement, the second pressure tongue is pressed, and the sliding locking mechanism slides along the slide rail toward the direction closer to the first support plate, thereby shortening the distance between the first support plate and the second support plate.

8. A method for adjusting the vertical swing distance of an electric sliding door leaf, characterized in that: The distance adjustment using the distance adjustment tool according to any one of claims 1 to 4 includes the following steps: First, loosen the upper or lower control arm mounting nuts; The second step is to attach the outer end face of the first support plate to the inner side wall of the door leaf, hold the movable handle tightly, and slide the sliding locking mechanism along the slide rail away from the first support plate until the outer end face of the second support plate is attached to the threshold sealing surface. The third step is to measure the distance between the second support plate and the first support plate. If the distance meets the preset distance requirement, proceed to the fourth step. Otherwise, grip the movable handle, slide the locking mechanism along the slide rail away from the first support plate, and open the door until the distance between the second support plate and the first support plate meets the preset distance requirement, then proceed to the fourth step. The fourth step is for maintenance personnel to adjust the position of the upper or lower swing arm and then pre-tighten the nuts on the upper or lower swing arm mounting base.

9. A method for adjusting the vertical swing distance of an electric sliding door leaf, characterized in that: The distance adjustment using the distance adjustment tool described in claim 4 includes the following steps: First, loosen the upper or lower control arm mounting nuts; The second step is to attach the outer end face of the first support plate to the inner side wall of the door leaf, hold the movable handle tightly, and slide the sliding locking mechanism along the slide rail away from the first support plate until the outer end face of the second support plate is attached to the threshold sealing surface. The third step is to measure the distance between the second support plate and the first support plate. If the distance meets the preset distance requirement, proceed to the fourth step. If the distance does not meet the preset distance requirement, grip the movable handle tightly, and the sliding locking mechanism slides along the slide rail away from the first support plate, opening the door until the distance between the second support plate and the first support plate meets the preset distance requirement, then proceed to the fourth step. If the distance exceeds the preset distance requirement, press the second pressure tongue, and the sliding locking mechanism slides along the slide rail towards the first support plate, shortening the distance between the first and second support plates until the distance between the second support plate and the first support plate meets the preset distance requirement, then proceed to the fourth step. The fourth step is for maintenance personnel to adjust the position of the upper or lower swing arm and then pre-tighten the nuts on the upper or lower swing arm mounting base.

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