Elevator door strength inspection device
By combining movable frames and movable blocks with servo motors and hydraulic rods, multi-position strength detection and rapid discharge of elevator doors are achieved, solving the problems of inaccurate detection and low efficiency in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-20
AI Technical Summary
Existing elevator door strength testing devices can only test specific locations on the elevator door, failing to comprehensively assess its strength. This results in inaccurate testing results and makes it difficult to quickly remove the elevator door after testing, affecting work efficiency.
The system employs a movable frame that can move left and right, and a movable block that can move up and down, along with hydraulic rods and pressure sensors, to detect the strength of the elevator door at different positions. It also uses a servo motor and lead screw system to achieve stable positioning and rapid discharge of the elevator door.
It enables precise strength testing at different locations of elevator doors, improving testing effectiveness, and the use of electric push rods enables rapid ejection of elevator doors, improving work efficiency.
Smart Images

Figure CN224019506U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to elevator detection related technical field, concretely is a kind of elevator door strength testing device. BACKGROUND
[0002] Elevator includes car body and elevator door, elevator is to improve quality of life, improve travel efficiency, guarantee personal safety, and promote social progress, with the increase of elevator workload, people's quality requirements to elevator also improve, elevator door in daily life, often be impacted and knock, easy to be damaged, therefore, in elevator production, the strength of elevator door needs to be tested;
[0003] The existing elevator door strength testing device disclosed in the publication No.CN218619731U includes a support frame, a fixed plate is fixedly installed on the support frame, a clamping mechanism is rotatably installed on the fixed plate, a rotating roller is fixedly installed on one side of the clamping mechanism, and the rotating roller is fixedly connected with a rotating mechanism through the fixed plate.
[0004] The above-mentioned can ensure that the elevator door will not fall off during detection, and the strength of the other side can be detected by starting the rotating mechanism. Through semi-mobilization operation, not only the physical strength of workers is reduced, but also the efficiency of elevator door detection is improved.
[0005] But the above-mentioned device can only detect the strength of the specified position of elevator door, and cannot detect the strength of different positions of elevator door, so the detection effect is poor, which affects the accuracy of the data obtained, and after the elevator door is detected, the elevator door cannot be quickly discharged, which affects the work efficiency. Therefore, we propose an elevator door strength testing device to solve the problems mentioned above. UTILITY MODEL CONTENTS
[0006] The utility model is aimed at providing an elevator door strength testing device to solve the problems mentioned in the background.
[0007] In order to achieve the above object, the utility model provides following technical scheme: a kind of elevator door strength inspection device, including base, top plate, hydraulic rod and pressure sensor, the front and rear sides of the base are fixed with side plate, the lower of the base is fixed with lower support fixed component, the right middle part of the base is fixed with first servo motor, and the upper of first servo motor is fixed with first screw rod, the right side of the base both ends is fixed with positioning rod, top plate is provided on the positioning rod, and the lower of top plate is fixed with upper support fixed component, the surface of the top plate is equipped with slot away from the side of positioning rod, the slot is equipped with movable frame, the surface of the base is equipped with recess corresponding position of movable frame, and the side of base is equipped with second servo motor, the output of second servo motor is fixed with second screw rod, the side above the movable frame is equipped with third servo motor, and the output of third servo motor is fixed with third screw rod, the inside of movable frame is slidably provided with movable block with third screw rod thread connection, and the surface of movable block is equipped with hydraulic rod, the output of hydraulic rod is fixed with pressure sensor, and the end of pressure sensor is fixed with extruding head, the upper of the base is fixed with rear plate at the side of side plate.
[0008] Preferably, the lower support fixed component and the upper support fixed component are the same structure, the lower support fixed component includes a fixed block, the fixed block is fixed on the surface of the base, and a sliding groove is formed on the surface of the fixed block, a side groove is formed on the front side of the fixed block and communicates with the sliding groove, a fourth servo motor is fixed on the surface of the side plate, and a bidirectional screw rod is rotatably connected to the inside of the fixed block and fixed to the output of the fourth servo motor, and an extrusion rod is threadedly connected to the bidirectional screw rod and slidably connected to the surface of the side groove.
[0009] Preferably, the extrusion rod is provided with two groups, and the movement directions of the two groups of extrusion rods on the bidirectional screw rod are opposite.
[0010] Preferably, the first screw rod is threadedly connected to the top plate, the top plate is slidably connected to the positioning rod, and the upper support fixed component below the top plate is correspondingly arranged with the lower support fixed component above the base.
[0011] Preferably, the second screw rod is threadedly connected to the movable frame, and the recess on the surface of the base is slidably connected to the movable frame.
[0012] Preferably, the rear plate is provided with an electric push rod on one side, and a push plate is fixed to the output of the electric push rod, and a sliding rod is slidably connected to the surface of the rear plate on the other side of the push plate.
[0013] Compared with the prior art, the utility model has the advantages that the elevator door strength inspection device,
[0014] The movable frame can be moved left and right, and the movable block can be moved up and down, so that the extrusion head can be adjusted on the surface position of the elevator door, the device can be used for testing different positions of the elevator door, and the testing effect of the device is improved.
[0015] The lower support fixing assembly and the upper support fixing assembly are used for positioning during the elevator door testing, and the electric push rod and the push plate on the surface of the rear plate are used for discharging after the elevator door testing, so that the working efficiency of the device is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a front view structural schematic diagram of the utility model;
[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;
[0018] Figure 3 It is a side sectional view structural schematic diagram of the utility model;
[0019] Figure 4 It is a downward sectional view structural schematic diagram of the utility model.
[0020] In the drawing: 1, base; 2, side plate; 3, lower support fixing assembly; 301, fixed block; 302, sliding groove; 303, side groove; 304, fourth servo motor; 305, bidirectional screw rod; 306, extrusion rod; 4, first servo motor; 5, first screw rod; 6, positioning rod; 7, top plate; 8, upper support fixing assembly; 9, slot; 10, movable frame; 11, groove; 12, second servo motor; 13, second screw rod; 14, third servo motor; 15, third screw rod; 16, movable block; 17, hydraulic rod; 18, pressure sensor; 19, extrusion head; 20, rear plate; 21, electric push rod; 22, push plate; 23, sliding rod. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0022] Please refer to Figures 1-4The utility model provides a technical scheme: an elevator door strength inspection device, including base 1, top plate 7, hydraulic rod 17 and pressure sensor 18, the front and back both sides of base 1 are fixed with side plate 2, the below of base 1 is fixed with lower support fixed assembly 3, and the structure of lower support fixed assembly 3 is same with upper support fixed assembly 8, lower support fixed assembly 3 includes fixed block 301, and fixed block 301 is fixed on the surface of base 1, and the surface of fixed block 301 is equipped with sliding slot 302, and the front side of fixed block 301 is equipped with the lateral groove 303 of the intercommunication of sliding slot 302, the surface of side plate 2 is fixed with fourth servo motor 304, and the output of fourth servo motor 304 is fixed with the rotation connection of bidirectional screw rod 305 in fixed block 301 interior, and the bidirectional screw rod 305 is screw -threaded connection with the extrusion rod 306 of the surface sliding of lateral groove 303, and the extrusion rod 306 is provided with two groups, and the movement direction of two groups of extrusion rod 306 on bidirectional screw rod 305 is opposite, can pass through bidirectional screw rod 305 and the thread movement of extrusion rod 306, and the opposite movement of two groups of extrusion rod 306 on the lateral groove 303 of fixed block 301 surface is convenient, so that two groups of extrusion rod 306 carry out the extrusion fixed of the side of elevator door, the right middle part of base 1 is fixed with first servo motor 4, and the above of first servo motor 4 is fixed with first screw rod 5, and the right side of base 1 both ends is fixed with positioning rod 6, and positioning rod 6 is provided with top plate 7, and the below of top plate 7 is fixed with upper support fixed assembly 8, and the connection mode of first screw rod 5 and top plate 7 is screw connection, and the connection mode of top plate 7 and positioning rod 6 is sliding connection, and the upper support fixed assembly 8 below top plate 7 and the lower support fixed assembly 3 above base 1 are correspondingly set, can pass through the thread movement of first screw rod 5 and top plate 7, so that top plate 7 slides on positioning rod 6, so that top plate 7 carries out the up and down extrusion of elevator door;
[0023] Please refer to Figures 1-4The surface of the top plate 7 away from one side of the positioning rod 6 is provided with a slot 9, the slot 9 is provided with a movable frame 10, the surface of the base 1 is provided with a groove 11 corresponding to the position of the movable frame 10, and the side surface of the base 1 is provided with a second servo motor 12, the output end of the second servo motor 12 is fixedly provided with a second lead screw 13, the second lead screw 13 and the movable frame 10 are connected in a threaded connection mode, and the lower side of the movable frame 10 and the groove 11 on the surface of the base 1 are connected in a clamping type sliding connection mode, the second lead screw 13 and the movable frame 10 can be threaded, the movable frame 10 can slide on the groove 11 on the surface of the base 1, the left and right positions of the extrusion head 19 can be adjusted, a third servo motor 14 is installed on the upper side of the movable frame 10, the output end of the third servo motor 14 is fixedly provided with a third lead screw 15, a movable block 16 threaded connected with the third lead screw 15 is slidably arranged in the movable frame 10, a hydraulic rod 17 is installed on the surface of the movable block 16, a pressure sensor 18 is fixedly arranged at the output end of the hydraulic rod 17, and an extrusion head 19 is fixedly arranged at the end of the pressure sensor 18, a rear plate 20 is fixedly arranged on the side of the side plate 2 above the base 1, an electric push rod 21 is installed on one side of the rear plate 20, the output end of the electric push rod 21 is fixedly provided with a push plate 22, and the other side of the push plate 22 is fixedly provided with a sliding rod 23 slidably connected to the surface of the rear plate 20, the use of the electric push rod 21 on the surface of the rear plate 20 can drive the push plate 22 to push the elevator door out, so that the elevator door can be quickly discharged.
[0024] Working principle: first, the elevator door to be inspected is moved to the base 1, and the use of the lower support fixing assembly 3 above the base 1 is used to support the elevator door, then the first servo motor 4 is opened, the first servo motor 4 is threaded with the first lead screw 5 and the top plate 7, the top plate 7 is slidably arranged on the positioning rod 6, the top plate 7 is used in cooperation with the lower upper support fixing assembly 8, the elevator door is pressed up and down, then the fourth servo motor 304 on the lower support fixing assembly 3 and the upper support fixing assembly 8 is opened, the bidirectional lead screw 305 is threaded with the extrusion rod 306, the two groups of extrusion rods 306 are movably arranged on the side groove 303 on the side of the fixed block 301, the left and right positions of the elevator door are adjusted, and the stability of the elevator door inspection is improved;
[0025] During inspection, the second servo motor 12 is opened, the second lead screw 13 is threaded with the movable frame 10, the movable frame 10 is slidably arranged on the groove 11 on the surface of the base 1, the left and right positions of the extrusion head 19 are adjusted, the third servo motor 14 and the third lead screw 15 are threaded with the movable block 16, the movable block 16 is slidably arranged on the movable frame 10, the up and down positions of the extrusion head 19 are adjusted, the device is convenient for inspection of the elevator door at different positions, and the inspection effect of the device is improved;
[0026] After the inspection is finished, the electric push rod 21 is opened, the electric push rod 21 drives the push plate 22 to move outward, the push plate 22 pushes the elevator door out of the base 1, the elevator door is quickly discharged, and the use effect of the device is improved, which is the use principle of the elevator door strength inspection device.
[0027] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. An elevator door strength testing device, comprising a base (1), a top plate (7), a hydraulic rod (17), and a pressure sensor (18), characterized in that: Side plates (2) are fixed to the front and rear sides of the base (1). A lower support fixing assembly (3) is fixed to the bottom of the base (1). A first servo motor (4) is fixed to the middle of the right side of the base (1), and a first lead screw (5) is fixed above the first servo motor (4). Positioning rods (6) are fixed to both the front and rear ends of the right side of the base (1). A top plate (7) is provided on the positioning rod (6), and an upper support fixing assembly (8) is fixed to the bottom of the top plate (7). A slot (9) is opened on the side of the top plate (7) away from the positioning rod (6). A movable frame (10) is provided on the slot (9). A groove (11) is opened on the surface of the base (1) corresponding to the movable frame (10). A second servo motor (12) is installed on the side of the base (1), and a second lead screw (13) is fixed to the output end of the second servo motor (12). A third servo motor (14) is installed on the upper side of the movable frame (10), and a third lead screw (15) is fixed to the output end of the third servo motor (14). A movable block (16) is slidably arranged inside the movable frame (10) and threadedly connected to the third lead screw (15). A hydraulic rod (17) is installed on the surface of the movable block (16). A pressure sensor (18) is fixed to the output end of the hydraulic rod (17), and a pressing head (19) is fixed to the end of the pressure sensor (18). A rear plate (20) is fixed above the base (1) on the side of the side plate (2).
2. The elevator door strength testing device according to claim 1, characterized in that: The lower support fixing component (3) has the same structure as the upper support fixing component (8). The lower support fixing component (3) includes a fixing block (301). The fixing block (301) is fixed on the surface of the base (1), and a sliding groove (302) is provided on the surface of the fixing block (301). A side groove (303) communicating with the sliding groove (302) is provided on the front side of the fixing block (301). A fourth servo motor (304) is fixed on the surface of the side plate (2), and a bidirectional lead screw (305) is fixed at the output end of the fourth servo motor (304) and rotatably connected inside the fixing block (301). A pressing rod (306) that engages and slides on the surface of the side groove (303) is threaded on the bidirectional lead screw (305).
3. The elevator door strength testing device according to claim 2, characterized in that: The extrusion rod (306) is provided in two sets, and the two sets of extrusion rods (306) move in opposite directions on the bidirectional lead screw (305).
4. The elevator door strength testing device according to claim 1, characterized in that: The first lead screw (5) is connected to the top plate (7) by a threaded connection, and the top plate (7) is connected to the positioning rod (6) by a sliding connection. The upper support fixing component (8) below the top plate (7) and the lower support fixing component (3) above the base (1) are correspondingly set.
5. The elevator door strength testing device according to claim 1, characterized in that: The second lead screw (13) is connected to the movable frame (10) by a threaded connection, and the lower part of the movable frame (10) and the groove (11) on the surface of the base (1) form a snap-fit sliding connection.
6. The elevator door strength testing device according to claim 1, characterized in that: An electric push rod (21) is installed on one side of the rear plate (20), and a push plate (22) is fixed at the output end of the electric push rod (21). A slide rod (23) is fixed on the other side of the push plate (22) and is slidably connected to the surface of the rear plate (20).