An elevator door system testing device
By designing an elevator door system testing device, an airbag is used to simulate an obstacle, and combined with support components and measuring instruments to detect the deformation of the elevator door, the problem of the elevator door not being able to open in time is solved, and the safety function testing and ease of use are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING XINGANGFENG AIR CONDITIONING HEATING & COOLING EQUIPMENT ENGINEERING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing elevator door testing devices cannot effectively detect whether an elevator door can immediately reopen when it encounters an obstacle during the closing process, increasing the risk of passengers being pinched.
An elevator door system testing device was designed. It uses an airbag to simulate an obstacle and detects the elevator door's response. Combined with support components and measuring instruments, it detects the amount of deformation of the elevator door to ensure that the elevator door can be reopened immediately.
It enables simple testing of elevator door safety functions, ensuring that the elevator door can open in time when it encounters an obstacle, reducing the risk of passengers being pinched. It has a simple structure and is easy to use.
Smart Images

Figure CN224411153U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator door testing technology, and more specifically, to an elevator door system testing device. Background Technology
[0002] In modern buildings, elevators have become an indispensable vertical transportation tool. As a key component that comes into direct contact with passengers and operates frequently, the performance of elevator door systems has a crucial impact on passenger safety and the elevator riding experience. The main purposes of testing elevator door systems cover safety assurance, operational performance optimization, and compliance verification.
[0003] A search revealed that Chinese patent CN216012711U discloses an elevator door strength testing device. This device comprises a measuring instrument body, a slider, curved groove plates, support legs, a support base, fastening bolts, and a compression block. First, the measuring instrument body is placed horizontally in front of the elevator door. By pulling the curved groove plates on the left and right sides, the curved groove plates drive the support legs and slider, thereby driving the support base to support both sides of the elevator door. Then, the fastening bolts are tightened, causing the compression block to compress and tighten the curved groove plates. This allows for measurement and testing of whether the deformation of the elevator door meets the required specifications when a certain force is applied, achieving a user-friendly design.
[0004] When the above-mentioned testing device is used, it measures whether the deformation of the elevator door meets the standard requirements by measuring the instrument body. However, in actual use, the elevator door often traps people or objects. It is inconvenient to test whether the elevator door can immediately reopen when it encounters an obstacle during the closing process, which increases the risk of passengers being injured while using the elevator. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an elevator door system testing device, which aims to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator door system testing device, comprising a mounting frame and a measuring instrument body, wherein the measuring instrument body is fixedly mounted on the rear side of the mounting frame near the bottom edge, and an inflation assembly is provided on the top of the measuring instrument body, the inflation assembly comprising a fixed frame, an air bladder, an air pipe and a valve, the front side of the air bladder being fixedly connected to the fixed frame, one end of the valve penetrating the fixed frame and being fixedly connected to the air bladder, the valve being located at the top of the fixed frame and fixedly mounted on the air pipe, an insert frame being fixedly connected at the center of the front side of the fixed frame, and the front end of the insert frame penetrating the mounting frame, and casters being fixedly connected at the bottom of the mounting frame near the four corners.
[0007] Furthermore, a long bolt is movably provided on the insertion frame, and the long bolt is threadedly connected to the top end of the mounting bracket.
[0008] As can be seen, in the above technical solution, rotating the long bolt and moving it away from the insert frame releases the fixation between the fixed frame and the mounting bracket, allowing the fixed frame to be disassembled and replaced. Similarly, the distance between the fixed frame and the mounting bracket can be adjusted.
[0009] Furthermore, a guide cylinder is movably sleeved on the long bolt, and the top end of the guide cylinder is fixedly connected to the mounting bracket.
[0010] It can be seen that the above technical solution is designed to facilitate the guiding and support of long bolts.
[0011] Furthermore, a support frame is fixedly connected inside the mounting bracket, and a support assembly is provided on the support frame. The support assembly includes positive and negative lead screws, two sliding frames, two washers, and two gaskets.
[0012] Furthermore, it also includes a pressing frame, the positive and negative lead screws are movably connected to the support frame through bearings, both sliding frames are threaded to the positive and negative lead screws, and the opposite sides of the two sliding frames pass through both sides of the mounting frame, the opposite sides of the two pressing frames are in contact with the two sliding frames, and the opposite sides of the two pressing frames are fixedly connected to the two gaskets.
[0013] It can be seen that the above technical solution is designed to facilitate the compression support on both sides of the elevator door floor.
[0014] Furthermore, each of the two extrusion frames has two short bolts movably installed inside, and the two extrusion frames are fixed to the two sliding frames by multiple short bolts respectively.
[0015] As can be seen, in the above technical solution, the extrusion frame is disassembled and replaced by removing the fixing between the extrusion frame and the sliding frame with short bolts.
[0016] Furthermore, the bottom end of the guide cylinder is movably connected to a handle via a bearing, the top of the handle is provided with a bevel gear mechanism, and the handle is connected to the forward and reverse lead screws via the bevel gear mechanism.
[0017] It can be seen that the above technical solution is designed to facilitate the rotation of the positive and negative lead screws.
[0018] The technical effects and advantages of this utility model are as follows:
[0019] 1. In this utility model, external gas enters the airbag through the air tube. When the airbag inflates to a suitable size, the valve is closed to prevent the gas in the airbag from overflowing through the air tube. When the elevator door closes, the elevator door squeezes the airbag. By observing the elevator door's reaction when the airbag is squeezed, it is possible to detect whether the elevator door can be reopened immediately. The operation is simple and convenient for testing the safety function of the elevator door.
[0020] 2. This utility model involves placing the measuring instrument body horizontally on the front of the elevator door. Rotating the handle can drive the forward and reverse lead screws to rotate, which in turn can drive the two sliding frames to move in opposite directions, thereby driving the two compression frames and two gaskets to move in opposite directions. The two compression frames and two gaskets provide compression support to both sides of the elevator door. The measuring instrument body is used to detect whether the deformation of the elevator door meets the specifications. The structure is simple and easy to use. Attached Figure Description
[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a bottom view of the overall structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the assembly structure of the mounting bracket and guide cylinder of this utility model;
[0025] Figure 4 This is a schematic diagram of the assembly structure of the inflatable component and the long bolt of this utility model;
[0026] Figure 5 This is a schematic diagram of the support component structure of this utility model.
[0027] In the diagram: 1. Mounting bracket; 2. Inflatable assembly; 3. Long bolt; 4. Insert frame; 5. Support frame; 6. Support assembly; 7. Casters; 8. Measuring instrument body; 9. Guide tube; 201. Fixing frame; 202. Airbag; 203. Air tube; 204. Valve; 601. Positive and negative lead screws; 602. Sliding frame; 603. Compression frame; 604. Gasket; 605. Short bolt; 606. Bevel gear mechanism; 607. Handle. Detailed Implementation
[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0029] Refer to the instruction manual appendix Figure 1-5 An elevator door system testing device according to this embodiment includes a mounting frame 1 and a measuring instrument body 8. The measuring instrument body 8 is fixedly installed on the rear side of the mounting frame 1 near the bottom edge. An inflation assembly 2 is provided on the top of the measuring instrument body 8. The inflation assembly 2 includes a fixed frame 201, an airbag 202, an air pipe 203, and a valve 204. The front side of the airbag 202 is fixedly connected to the fixed frame 201. One end of the valve 204 passes through the fixed frame 201 and is fixedly connected to the airbag 202. The valve 204 is located on the top of the fixed frame 201 and is fixedly installed on the air pipe 203. An insert frame 4 is fixedly connected at the center of the front side of the fixed frame 201, and the front end of the insert frame 4 passes through the mounting frame 1. Universal wheels 7 are fixedly connected at the bottom of the mounting frame 1 near the four corners.
[0030] Furthermore, a long bolt 3 is movably provided on the insertion frame 4, and the long bolt 3 is threadedly connected to the top end of the mounting bracket 1. A guide cylinder 9 is movably sleeved on the long bolt 3, and the top end of the guide cylinder 9 is fixedly connected to the mounting bracket 1.
[0031] Furthermore, a support frame 5 is fixedly connected inside the mounting frame 1. A support assembly 6 is provided on the support frame 5. The support assembly 6 includes a positive and negative lead screw 601, two sliding frames 602, two washers 604, and two shims 605. The positive and negative lead screw 601 is movably connected to the support frame 5 through bearings. Both sliding frames 602 are threadedly connected to the positive and negative lead screw 601, and the opposite sides of the two sliding frames 602 pass through both sides of the mounting frame 1. The opposite sides of the two pressing frames 603 are connected to the two sliding frames 602. The two extrusion frames 603 are in contact with each other, and the opposite sides of the two extrusion frames 603 are respectively fixedly connected to the two gaskets 604. Two short bolts 605 are movably installed inside each of the two extrusion frames 603, and the two extrusion frames 603 are fixed to the two sliding frames 602 by multiple short bolts 605. The bottom end of the guide cylinder 9 is movably connected to the handle 607 through the bearing. The top of the handle 607 is provided with a bevel gear mechanism 606, and the handle 607 is connected to the positive and negative lead screws 601 through the bevel gear mechanism 606.
[0032] The measuring instrument body 8 is placed horizontally on the front of the elevator door. Turning the handle 607 can drive the positive and negative screw 601 to rotate. Since both sliding frames 602 are threadedly connected to the positive and negative screw 601, and the mounting bracket 1 restricts the rotation of the two sliding frames 602, the positive and negative screw 601 can drive the two sliding frames 602 to move in opposite directions, thereby driving the two compression frames 603 and the two gaskets 604 to move in opposite directions. The two compression frames 603 and the two gaskets 604 provide compression support to both sides of the elevator door. The measuring instrument body 8 detects whether the deformation of the elevator door meets the specifications. The structure is simple and easy to use. The fixation between the compression frame 603 and the sliding frame 602 is released by the short bolt 605, and the compression frame 603 can be disassembled and replaced. It is worth noting that the bevel gear mechanism 606 includes two bevel gears, and the two bevel gears are fixedly connected to the handle 607 and the positive and negative screw 601 respectively.
[0033] The usage method of this embodiment is as follows:
[0034] During use, the operator connects one end of the air pump to the air pipe 203. External gas enters the airbag 202 through the air pipe 203. As gas is continuously added, the airbag 202 gradually inflates and expands, changing its volume and shape to simulate an object that might be caught in the elevator door. Once the airbag 202 has inflated to the appropriate size, the valve 204 is closed to prevent gas from escaping through the air pipe 203. This pushes the mounting bracket 1, causing the four casters 7 to slide on the ground, thus positioning the airbag 202 to one side of the elevator door. When the elevator door... When the elevator door closes, it compresses the airbag 202. By observing the elevator door's reaction when the airbag 202 is compressed, it can be detected whether the elevator door can be reopened immediately. The operation is simple and convenient for testing the safety function of the elevator door. Rotate the long bolt 3 and move it away from the insert frame 4 to release the fixation between the fixed frame 201 and the mounting bracket 1. The fixed frame 201 can be disassembled and replaced. Similarly, adjust the distance between the fixed frame 201 and the mounting bracket 1, and fix the insert frame 4 to the mounting bracket 1 with the long bolt 3. At the same time, the guide cylinder 9 can guide and support the long bolt 3.
[0035] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An elevator door system testing device, comprising a mounting frame (1) and a measuring instrument body (8), wherein the measuring instrument body (8) is fixedly mounted on the rear side of the mounting frame (1) near the bottom edge, characterized in that: The top of the measuring instrument body (8) is provided with an inflation assembly (2). The inflation assembly (2) includes a fixed frame (201), an airbag (202), an air tube (203), and a valve (204). The front side of the airbag (202) is fixedly connected to the fixed frame (201). One end of the valve (204) passes through the fixed frame (201) and is fixedly connected to the airbag (202). The valve (204) is located at the top of the fixed frame (201) and is fixedly installed on the air tube (203). A plug frame (4) is fixedly connected at the center of the front side of the fixed frame (201), and the front end of the plug frame (4) passes through the mounting bracket (1). Universal wheels (7) are fixedly connected to the bottom of the mounting bracket (1) near the four corners.
2. The elevator door system testing device according to claim 1, characterized in that: The insert frame (4) is movably provided with a long bolt (3), and the long bolt (3) is threadedly connected to the top of the mounting bracket (1).
3. The elevator door system testing device according to claim 2, characterized in that: The guide cylinder (9) is movably sleeved on the long bolt (3), and the top end of the guide cylinder (9) is fixedly connected to the mounting bracket (1).
4. The elevator door system testing device according to claim 1, characterized in that: The mounting bracket (1) is fixedly connected to a support frame (5), and a support component (6) is provided on the support frame (5). The support component (6) includes a positive and negative lead screw (601), two sliding frames (602), two washers (604) and two gaskets (604).
5. The elevator door system testing device according to claim 4, characterized in that: It also includes a pressing frame (603), the positive and negative lead screws (601) are movably connected to the support frame (5) through bearings, the two sliding frames (602) are threadedly connected to the positive and negative lead screws (601), and the opposite sides of the two sliding frames (602) respectively penetrate through both sides of the mounting frame (1), the opposite sides of the two pressing frames (603) respectively contact the two sliding frames (602), and the opposite sides of the two pressing frames (603) are respectively fixedly connected to the two gaskets (604).
6. The elevator door system testing device according to claim 5, characterized in that: Each of the two extrusion frames (603) has two short bolts (605) movably installed inside, and the two extrusion frames (603) are fixed to the two sliding frames (602) by a plurality of short bolts (605).
7. The elevator door system testing device according to claim 3, characterized in that: The bottom end of the guide cylinder (9) is movably connected to a handle (607) via a bearing. The top of the handle (607) is provided with a bevel gear mechanism (606), and the handle (607) is connected to the positive and negative lead screws (601) via the bevel gear mechanism (606).