Pendulum bob mechanism for testing mechanical strength of elevator landing door

Abstract

The invention discloses a pendulum bob mechanism for testing the mechanical strength of an elevator landing door, the pendulum bob mechanism comprises a strength testing system, the strength testing system comprises a pendulum bob, a mounting seat, a recovery rod and an overturning driver, the upper end of the pendulum bob is fixed on the mounting seat through a connecting cable, and the upper end of the pendulum bob is fixed on the mounting seat; one end of the recovery rod is hinged to the mounting base, the other end of the recovery rod is provided with an unhooking mechanism used for being matched with the pendulum bob, and the unhooking mechanism is used for being connected with the pendulum bob and used for releasing the pendulum bob. By arranging the strength testing system, an automatic pendulum bob impact test on the elevator landing door can be achieved, releasing and recycling of the pendulum bob are automatically completed through the strength testing system, the automation degree is high, safety is higher, people are prevented from being hurt by the pendulum bob, errors caused by manual operation are greatly reduced, and safety of the testing process is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator detection, in particular to the technical field of a pendulum mechanism for testing the mechanical strength of elevator landing doors. Background Art

[0002] Elevators are one of the most common special equipment and means of transportation in people's lives and production. Their main types include passenger elevators, freight elevators, escalators, etc. The safe operation of elevators is related to the vital interests of the general public. With the continuous development of the economic society, the important role of elevators in aspects such as transportation and cargo transportation is increasingly reflected. New technologies and new materials are constantly innovatively applied in elevators, and the safety and reliability of elevator equipment have also received increasing attention from society.

[0003] Especially in recent years, there have been many elevator safety accidents caused by insufficient strength of the elevator landing door system. Analyzing the causes of the accidents, it can be found that most of them are due to passengers' artificial impacts or kicks on the landing door, resulting in damage to the internal devices after the door leaf deforms, and finally leading to passengers falling into the hoistway. In order to prevent such accidents from occurring, the "Safety Rules for the Construction and Installation of Lifts - Part 1: Passenger and Goods Lifts" GB / T 7588.1-2020 clearly stipulates the mechanical strength requirements for elevator landing doors and car doors. When the landing door is in the locked position and the car door is in the closed position, the mechanical strength of all landing doors, their door locks, and car doors shall meet the following requirements: 1. It can withstand a static force of 300 N acting vertically on any position on either side of the door leaf or door frame and evenly distributed over a circular (or square) area of 5 cm2, and: 1) The permanent deformation shall not be greater than 1 mm; 2) The elastic deformation shall not be greater than 15 mm.

[0004] After the test, the safety function of the door shall not be affected.

[0005] 2. It can withstand a static force of 1000 N acting vertically on any position on the landing door leaf or door frame from the landing direction or on the car door leaf or door frame from the inside of the car and evenly distributed over a circular (or square) area of 100 cm2, and there shall be no obvious permanent deformation (a maximum gap of 10 mm) affecting the function and safety.

[0006] 3. When the guiding device fixed on the door leaf fails, the horizontally sliding landing door shall have a device to keep the door leaf in the working position. The complete landing door assembly with these devices shall be able to withstand a pendulum impact test meeting the following requirements.

[0007] Among them, the requirements for the pendulum impact test are: From the landing side, when using a soft pendulum impact device to impact the panel or door frame at the impact point specified in GB 7588 from the middle in the width direction of the panel or door frame in accordance with the requirements of Appendix of GB 7588: 1) Permanent deformation may occur; 2) The landing door device shall not lose its integrity, remain in its original position, and the clearance after protruding into the hoistway shall not be greater than 0.12 m; 3) After the pendulum test, it is not required that the landing door can operate; 4) For the glass part, there shall be no cracks.

[0008] The impact test shall be carried out under the most unfavorable conditions considering wear and corrosion of the door system; when normal guiding devices may fail due to reasons such as wear, corrosion, fire, etc., the impact test shall be carried out under the state simulating the failure of normal guiding devices.

[0009] Currently, the testing process of the pendulum impact test is all completed manually, including taking points for static testing and pendulum impact testing, the testing process and data acquisition. The overall process has the following problems: There are certain safety risks for the personnel participating in the pendulum impact test (personnel assistance is required during the lifting and releasing processes, the pendulum weighs 45 kg, and in case of detachment, safety accidents are likely to occur), with high manual labor intensity and inconvenient control. Summary of the Invention

[0010] The purpose of the present invention is to solve the problems in the prior art and propose a pendulum mechanism for testing the mechanical strength of an elevator landing door, which can realize an automatic pendulum impact test on the elevator landing door, and the release and recovery of the pendulum are automatically completed by the strength testing system.

[0011] To achieve the above purpose, the present invention proposes a pendulum mechanism for testing the mechanical strength of an elevator landing door, including a strength testing system. The strength testing system includes a pendulum, a mounting base, a recovery rod, and a flipping drive. The upper end of the pendulum is fixed to the mounting base through a connecting cable. One end of the recovery rod is hingedly connected to the mounting base, and the other end is provided with a hook release mechanism for cooperating with the pendulum. The hook release mechanism is used to connect with the pendulum and release the pendulum. The flipping drive is used to drive the recovery rod to flip around the hinged position so that the hook release mechanism can flip to the position of the pendulum in the free fall state, and drive the pendulum to flip to the test required position through the hook release mechanism.

[0012] Preferably, it further includes a main support system. The main support system is provided with a landing door installation part for fixing the elevator landing door to be tested. The strength testing system is arranged near the landing door installation part, and a first adjustment system for adjusting the position of the strength testing system is provided on the main support system.

[0013] Preferably, the first adjustment system includes a first driving mechanism of the testing system arranged horizontally. The first driving mechanism of the testing system is connected to the mounting base and is used to drive the mounting base to translate away from or towards the landing door installation part. The first adjustment system further includes a second driving mechanism of the testing system arranged horizontally. The driving direction of the second driving mechanism of the testing system is perpendicular to the driving direction of the first driving mechanism of the testing system.

[0014] Preferably, the first adjustment system further includes a third driving mechanism of the testing system arranged vertically on the main support system. The third driving mechanism of the testing system is used to drive the strength testing system to lift and lower vertically along the main support system.

[0015] Preferably, the flipping driver is a winch. The cable of the winch is fixed to one end of the recovery rod. The recovery rod is controlled to flip upward by retracting the cable of the winch, and the recovery rod flips downward when the cable is released.

[0016] Preferably, the unhooking mechanism includes an unhooking push rod and a stop piece arranged opposite to the unhooking push rod. The stop piece is provided with a through hole corresponding to the unhooking push rod, and the pendulum is provided with a hanging ring adapted to the unhooking push rod.

[0017] The beneficial effects of the pendulum mechanism for mechanical strength testing of elevator landing doors in the present invention: By setting up the strength testing system, the present invention can realize the automatic pendulum impact test on the elevator landing door. The release and recovery of the pendulum are both automatically completed by the strength testing system, with a high degree of automation and higher safety. It avoids the pendulum from hurting people, greatly reduces the errors caused by manual operation, and significantly improves the safety of the testing process.

[0018] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the three-dimensional structure schematic diagram ① of the present invention.

[0020] Figure 2 is the three-dimensional structure schematic diagram ② of the present invention.

[0021] Figure 3 is the three-dimensional structure schematic diagram ③ of the present invention.

[0022] Figure 4 is the enlarged three-dimensional structure schematic diagram of the strength testing system of the present invention.

[0023] Figure 5 is the three-dimensional structure schematic diagram of the strength testing loading and feedback device of the present invention.

[0024] Figure 6It is a schematic side view structure diagram of the strength test loading and feedback device of the present invention.

[0025] Figure 7 It is a schematic three-dimensional structure diagram of the decoupling mechanism of the strength test loading and feedback device of the present invention.

[0026] Among them: 1 - Main support system; 2 - Strength test system; 3 - Strength test loading and feedback device; 11 - Landing door installation part; 21 - Mounting seat; 22 - Recovery rod; 23 - Flip drive; 24 - First drive mechanism of the test system; 25 - Decoupling mechanism; 26 - Pendulum; 27 - Second drive mechanism of the test system; 28 - Third drive mechanism of the test system; 31 - Loading and feedback device platform; 32 - Loading and feedback transverse movement mechanism; 33 - Linear push rod; 34 - Force sensor; 35 - Laser emitter; 36 - Laser receiver; 37 - Range sensor; 38 - Rotating platform; 39 - Rotating drive; 111 - Lower fixed frame of the landing door; 112 - Upper fixed frame of the landing door; 113 - Landing door slide rail; 310 - Second lifting platform; 311 - Strength test loading and feedback lifting device. Specific embodiments

[0027] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0028] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.

[0030] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", and "couple" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Embodiment 1

[0031] Refer to Figures 1 - 3 , a device for testing the mechanical strength of an elevator landing door according to the present invention, includes a main support system 1. A landing door installation part 11 for fixing the elevator landing door to be tested and a strength testing system 2 corresponding to the landing door installation part 11 are provided on the main support system 1. The strength testing system 2 includes a pendulum 26. The pendulum 26 is arranged at a position corresponding to the landing door installation part 11. The strength testing system 2 is used to fix and release the pendulum 26 at the test required position. The strength testing system 2 is used to conduct a pendulum impact test on the elevator landing door.

[0032] Refer to Figure 4, Specifically, the strength test system 2 includes a mounting base 21, a recovery rod 22, and a flipping drive 23. The upper end of the pendulum 26 is fixed to the mounting base 21 through a connecting cable. One end of the recovery rod 22 is hinged to the mounting base 21, and the other end is provided with a decoupling mechanism 25 for cooperating with the pendulum 26. The flipping drive 23 is used to drive the recovery rod 22 to flip around the hinge position so that the decoupling mechanism 25 can flip to the position of the pendulum 26 in a free-falling state, and drive the pendulum 26 to flip to the test required position through the decoupling mechanism 25. The pendulum 26 is connected to the decoupling mechanism 25. The flipping drive 23 drives the recovery rod 22 to flip to a certain height, releases the pendulum 26 through the decoupling mechanism 25, and the pendulum 26 automatically hits the elevator landing door to be tested under the action of gravity, thereby performing the pendulum impact test. When the pendulum 26 needs to be recovered, the flipping drive 23 drives the recovery rod 22 to flip downward until the decoupling mechanism 25 approaches the pendulum 26, fixes the pendulum 26 on the decoupling mechanism 25 again, and then the flipping drive 23 drives the recovery rod 22 to flip upward to complete the recovery of the pendulum 26. The release and recovery of the pendulum are semi-automatically completed by the strength test system 2, with high automation and higher safety, avoiding injury caused by the pendulum 26, high precision, greatly reducing the errors caused by manual operation, and significantly improving the safety of the test process.

[0033] Preferably, the flipping drive 23 is a winch. The cable of the winch is fixed to one end of the recovery rod 22. The recovery rod 22 is driven to flip upward by recovering the cable of the winch, and the recovery rod 22 flips downward when the cable is released.

[0034] Refer to Figure 7 , the decoupling mechanism 25 includes a decoupling push rod 251 and a retaining piece 252 disposed opposite to the decoupling push rod 251. The retaining piece 252 is provided with a through hole corresponding to the decoupling push rod 251, and the pendulum 26 is provided with a hanging ring adapted to the decoupling push rod 251. When the decoupling mechanism 25 works, the rod arm of the decoupling push rod 251 passes through the hanging ring of the pendulum 26 and is inserted into the through hole on the retaining piece 252. When releasing, the rod arm of the decoupling push rod 251 is directly retracted, and the pendulum 26 can be released. In another alternative embodiment, it can also be an electromagnet to adsorb the pendulum. Embodiment 2

[0035] Refer to Figure 1 , Figure 2 and Figure 3 , on the basis of Embodiment 1, the main support system 1 is provided with a first adjustment system for adjusting the horizontal and vertical positions of the strength test system 2; the first adjustment system adjusts the relative position of the strength test system 2, and the second adjustment system adjusts the position of the elevator landing door to be tested, so as to meet the test requirements of elevator landing doors of various different specifications, and the applicability is stronger.

[0036] Refer toFigure 4 The first adjustment system includes a first driving mechanism 24 of the test system arranged horizontally, the first driving mechanism 24 of the test system is connected to the mounting seat 21 and is used to drive the mounting seat 21 to translate in a direction away from or close to the floor door mounting portion 11, and the first adjustment system also includes a second driving mechanism 27 of the test system arranged horizontally, the driving direction of the second driving mechanism 27 of the test system is perpendicular to the driving direction of the first driving mechanism 24 of the test system. The first driving mechanism 24 of the test system and the second driving mechanism 27 of the test system can cooperate to control the mounting seat 21 to complete the displacement in all horizontal directions, thereby adjusting the position of the mounting seat 21 and the pendulum 26 fixed thereon, meeting various detection requirements, and making position adjustment more convenient.

[0037] See also Figure 1 , Figure 4 The first adjustment system further includes a third driving mechanism 28 of the testing system vertically arranged on the main support system 1, and the third driving mechanism 28 of the testing system is used to drive the strength testing system 2 to vertically rise and fall along the main support system 1. The third driving mechanism 28 of the testing system can adjust the height of the pendulum 26 to meet the detection requirements of elevator door layers of different heights and increase the scope of application.

[0038] See also Figure 1 , Figure 4 The second driving mechanism 27 of the test system is arranged on the third driving mechanism 28 of the test system, and the first driving mechanism 24 of the test system is arranged on the second driving mechanism 27 of the test system. The first driving mechanism 24 of the test system is directly connected to the mounting seat 21. Embodiment 3

[0039] See also Figures 1 - 6 On the basis of the first embodiment, a strength test loading and feedback device 3 for cooperating with the elevator floor door to be tested is provided near the floor door installation portion 11, and the strength test loading and feedback device 3 includes a loading and feedback device platform 31, a loading and feedback transverse movement mechanism 32 for driving the loading and feedback device platform 31 to move laterally along the elevator floor door to be tested, and a linear push rod 33 arranged on the loading and feedback device platform 31, and a force sensor 34 for cooperating with the elevator floor door to be tested is provided on the arm of the linear push rod 33, and the linear push rod 33 is arranged toward the elevator floor door to be tested and is used to drive the force sensor 34 to translate in a direction away from or close to the elevator floor door to be tested. In this embodiment, the static test can be completed by cooperating with the linear push rod 33 and the force sensor 34. The linear push rod 33 drives the force sensor 34 to press on the surface of the elevator floor door to test whether the elevator floor door meets the requirements under the action of static force. The linear push rod 33 and the force sensor 34 can be driven to move horizontally along the elevator floor door through the loading and feedback transverse movement mechanism 32, so as to detect different positions of the elevator floor door and meet the multi-point testing requirements.

[0040] See also Figure 5 , Figure 6 There are two loading and feedback device platforms 31, which are respectively arranged on the front and rear sides of the floor door installation part 11. The two loading and feedback device platforms 31 are respectively provided with laser transmitters 35 and laser receivers 36 which are arranged opposite to each other. Specifically, the laser transmitter 35 and the laser receiver 36 cooperate to locate the edge position of the elevator floor door to be tested. When the laser transmitter 35 and the laser receiver 36 are translated toward the elevator floor door to be tested at the same time, the initial signal-free point of the laser receiver 36 is the sample edge of the elevator floor door to be tested. The cooperation of the laser transmitters 35 and the laser receivers 36 on both sides can accurately locate the edge positions of the elevator floor door on each side, which is convenient for the subsequent adjustment of the positions of the test components such as the strength test system 2 and the linear push rod 33, so that it can accurately find the test point.

[0041] See also Figure 5 , Figure 6 The loading and feedback device platform 31 is also provided with a distance sensor 37 which is arranged toward the landing door installation part 11 and relatively parallel to the linear push rod 33. The distance sensor 37 can be used to detect the distance between the landing door to be tested and the elevator. On the one hand, multi-point detection can be performed to determine whether the elevator door is aligned. On the other hand, the detection points can be detected before and after the pendulum impact test and the static test to determine the deformation.

[0042] See also Figure 1 , Figure 5 The strength test loading and feedback device 3 also includes a second lifting platform 310 and a strength test loading and feedback lifting device 311 for driving the second lifting platform 310 to vertically lift along the main support system 1. The loading and feedback device platform 31, the loading and feedback lateral movement mechanism 32, the linear push rod 33, the force sensor 34, and the distance sensor 37 are all arranged on the second lifting platform 310. It is used to adjust the height of each component to meet the detection requirements of different height positions of the elevator door.

[0043] See also Figure 5 , Figure 6 The loading and feedback device platform 31 is provided with a rotating platform 38 and a rotating driver 39 for driving the rotating platform 38 to rotate horizontally, and the linear push rod 33 is arranged on the rotating platform 38. The rotating driver 39 is used to adjust the angles of the linear push rod 33, the laser transmitter 35, the laser receiver 36, the distance sensor 37 and other components so that they can meet the detection requirements.

[0044] Specifically, during the test, the loading and feedback transverse movement mechanism 32 and the strength test loading and feedback lifting device 311 control the displacement of the distance measuring sensor 37 to different positions and measure the distance data between the elevator landing door to be tested at at least four points horizontally and vertically. Based on the data of the distance measuring sensor 37, the spatial position of the elevator landing door to be tested is drawn, the relative angle between the elevator landing door to be tested, the distance measuring sensor 37 and the linear push rod 33 is calculated, and compared with the required angle for the test. The angle X that the linear push rod 33 needs to deflect is calculated, and the rotation driver 39 is controlled according to the value of X to adjust the angle of the rotating platform 38, so that the linear push rod 33 is perpendicular to the elevator landing door to be tested. By adjusting the angle of the rotating platform 38 in this step, the perpendicularity to the elevator landing door sample is ensured.

[0045] Refer to Figure 2 、 Figure 3 As shown in Figure 2 and Figure 3 , the landing door installation part 11 includes a lower landing door fixing frame 111 and an upper landing door fixing frame 112 arranged on the upper side of the lower landing door fixing frame 111. At least two vertically arranged landing door slide rails 113 are further provided on the main support system 1. The upper landing door fixing frame 112 is fixedly arranged on the guide rail slider of the landing door slide rail 113. An upper fixing frame lifting driver 114 for driving the upper landing door fixing frame 112 to lift up and down is further provided on the main support system 1. On the one hand, the upper fixing frame lifting driver 114 can adjust the height of the upper landing door fixing frame 112, and on the other hand, it can be used for testing to apply pressure to the upper side of the elevator landing door to detect the pressure-bearing performance of the elevator door.

[0046] Preferably, the first driving mechanism 24, the second driving mechanism 27, the third driving mechanism 28 of the test system, the loading and feedback transverse movement mechanism 32, and the strength test loading and feedback lifting device 311 are all composed of a combination of several guide rails and linear screw structures, and those skilled in the art can select a suitable driving structure according to the actual situation.

[0047] The working process of the present invention: During the working process of the device for testing the mechanical strength of an elevator landing door of the present invention: 1. Install the elevator landing door sample to be tested onto the landing door installation part 11 in place. Since the landing door is installed vertically and is basically perpendicular to the ground; the zero point in the vertical direction of the bottom installation surface. 2. According to the relevant data of the landing door, calculate the landing door test points, and use the first adjustment system to move the pendulum 26 of the strength test device 2 to the same horizontal plane as the test points. 3. Align the zero point of the strength test loading and feedback device 3, perform zero point correction using the laser generator 35 and the laser receiver 36, and reset the zero point position. 4. Control the platforms 31 of the loading and feedback devices on both sides to move towards the landing door sample simultaneously. The starting point without signal of the laser receiver 36 is the edge of the landing door sample, which serves as the starting point for calculating the test points. 5. Control the platforms 31 of the loading and feedback devices on both sides to reach the test point positions. Use the distance measuring sensors to collect data of the test point and at least 4 points in the horizontal and vertical directions respectively, draw the spatial positions of the test area of the landing door sample, compare with the theoretical positions, and calculate the angle X that the rotating platform 38 needs to deflect. 6. Simultaneously deflect the rotating platforms 38 on both sides by the angle X to ensure perpendicularity to the landing door sample. 7. Drive the linear push rod 33 to extend its push rod axially towards the landing door direction for mechanical strength testing, and then use the distance measuring sensor 39 to collect data for static force testing. 8. Withdraw the strength testing loading and feedback device 3, adjust the position of the pendulum 26, start the first driving mechanism 24 of the testing system to make the distance between the pendulum 26 and the landing door 15 ± 10 mm; place the distance measuring sensor 37 directly behind the impact point of the pendulum. 9. Lift the pendulum. After reaching the specified height, trigger the unhooking mechanism 25 to conduct a pendulum impact test, and use the feedback device to record the data during the impact process and the final protrusion data of the landing door.

[0048] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The electric slide rail sliders, cylinders, welding machines, electric telescopic rods, and internal components of the controller all adopt conventional models in the prior art, and their internal structures belong to the prior art structures. Workers can complete their normal operations according to the prior art manuals. Coupled with the circuit connections adopting conventional connection methods in the prior art, no specific description will be made here.

[0049] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, any changes and modifications made to the embodiments described in this article, or equivalent structural or equivalent process transformations made using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the protection scope of the present invention patent.

Claims

1. A pendulum mechanism for testing the mechanical strength of an elevator door, comprising a strength testing system (2), characterized in that: The strength testing system (2) comprises a pendulum (26), a mounting seat (21), a recovery rod (22), and a flip driver (23); the upper end of the pendulum (26) is fixed to the mounting seat (21) via a connecting rope; one end of the recovery rod (22) is hingedly connected to the mounting seat (21); the other end is provided with a decoupling mechanism (25) for cooperating with the pendulum (26); the decoupling mechanism (25) is used to connect with the pendulum (26) and to release the pendulum (26); the flip driver (23) is used to drive the recovery rod (22) to flip around a hinged position so that the decoupling mechanism (25) can flip to a position where the pendulum (26) is in a free-falling state, and to drive the pendulum (26) to flip to a required test position via the decoupling mechanism (25).

2. A pendulum mechanism for testing the mechanical strength of elevator landing doors as claimed in claim 1, characterized in that: The invention also comprises a main support system (1), wherein the main support system (1) is provided with a floor door mounting portion (11) for fixing the floor door of the elevator to be tested, the strength test system (2) is arranged near the floor door mounting portion (11), and a first adjustment system for adjusting the position of the strength test system (2) is provided on the main support system (1).

3. A pendulum mechanism for testing the mechanical strength of elevator landing doors as claimed in claim 2, characterized in that: The first adjustment system comprises a first test system drive mechanism (24) arranged transversely, the first test system drive mechanism (24) being connected to the mounting seat (21) and being used to drive the mounting seat (21) to translate in a direction away from or close to the landing door mounting portion (11), and the first adjustment system further comprises a second test system drive mechanism (27) arranged transversely, the driving direction of the second test system drive mechanism (27) being perpendicular to the driving direction of the first test system drive mechanism (24).

4. A pendulum mechanism for testing the mechanical strength of elevator landing doors as claimed in claim 3, characterized in that: The first adjustment system further comprises a test system third drive mechanism (28) vertically arranged on the main support system (1), the test system third drive mechanism (28) being used to drive the strength test system (2) to vertically rise and fall along the main support system (1).

5. A pendulum mechanism for testing the mechanical strength of elevator landing doors as claimed in claim 1, characterized in that: The flipping driver (23) is a winch, the cable of the winch is fixed to one end of the recovery rod (22), and the recovery rod (22) is controlled to flip upward by retrieving the cable through the winch, and the recovery rod (22) flips downward when the cable is released.

6. A pendulum mechanism for testing the mechanical strength of elevator landing doors as claimed in claim 1, characterized in that: The unhooking mechanism (25) comprises an unhooking push rod (251), a blocking piece (252) arranged opposite to the unhooking push rod (251), the blocking piece (252) being provided with a through hole corresponding to the unhooking push rod (251), and the pendulum (26) being provided with a lifting ring adapted to the unhooking push rod (251).

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