A machine room less elevator manual single-arm brake release test system

Abstract

The application discloses a kind of inorganic room elevator manual single-arm brake release test system, by two test switches and the contact of running contactor, brake contactor, door lock contactor is connected in series, parallel and is made into 2-way switchable brake power circuit to give power to elevator brake, satisfy the operation requirement of brake release and release simultaneously when normal operation, test can only release 1 group brake at most to carry out brake force static test or dynamic test of another group brake;The application is simple to configure and operate, without setting two independent brake contactor control circuits, brake release test does not depend on operator to enter test menu and trigger test, and maintenance personnel is not required to pull manual brake release wrench or increase test box to remove and change line to release brake;In addition, interlock and signal detection are provided in brake power test circuit, it is safer and more convenient to operate, which is conducive to improving maintenance efficiency and protecting elevator equipment itself and elevator maintenance personnel safety.

Description

Technical Field

[0001] This invention belongs to the field of elevator testing technology, specifically a manual single-arm brake release test system for machine-room-less elevators. Background Technology

[0002] In machine-room-less elevators, the drive unit is located within the hoistway, while the brake is mounted on the drive unit. When the elevator stops, the brake's electromagnet coil de-energizes and engages the traction sheave, stopping the drive unit and ensuring the safe entry and exit of passengers. Insufficient braking force can lead to the elevator overshooting or undershooting, and may even cause shearing accidents when passengers are entering or exiting the car. Therefore, it is necessary to periodically verify the braking force of each brake to ensure its reliability. Currently, there are three main design methods and testing procedures. The first method involves using only one brake power control circuit for both sets of brakes. This means that the same brake contactor and power supply line simultaneously control the energization and de-energization of the electromagnet coils of both brakes. During verification, one maintenance worker manually releases one set of brakes by moving the release handle, while another person uses an operator on the control cabinet side to verify the braking force of the other set of brakes. The second method involves setting up only one brake power control circuit for both sets of brakes. After passing through the brake contactor, the brake power is split into two brake power ports using terminal plugs, and then split into two independent lines to power the two sets of brakes respectively. During testing, a test box is added. After power is off, one brake power box is directly connected to the brake power port on the test box. After power is restored, one set of brakes is released, and then the braking force of the other set of brakes is verified. The third method involves setting up two independent brake power control circuits for the two sets of brakes. That is, the energization and de-energization of the electromagnet coils of the two sets of brakes are independently controlled by two brake contactors and two brake power lines. During verification, maintenance personnel use an operator to access the test menu and select the corresponding test functions for testing.

[0003] The first design method and testing method can generally only be used to perform static testing of the double-arm system using an operator. If a single-arm test is to be performed, at least two people are required to operate it. One person enters the test mode first, and the other person releases the brake. Then the first person triggers the brake again. The two people need to cooperate with each other to complete the single-arm brake release and perform static and dynamic testing of the brake's single-arm braking force. If maintenance personnel need to enter the shaft to release the brake, the operation becomes even more inconvenient, the coordination becomes more difficult, and it is extremely dangerous.

[0004] The second design method and testing approach generally only allows for static testing of both brake arms using an operator. For single-arm testing, a test box needs to be prepared first. During testing, the brake power supply must be disconnected, then one brake power line in the control cabinet must be removed and connected to the test circuit in the test box. Afterward, the brake power switch in the control cabinet and the test relay in the test box must be switched on sequentially. Only then can the single-arm braking force static and dynamic tests be performed by releasing the brake. This method requires an additional test box and on-site wiring modifications, making the configuration and process complex, inconvenient to test, demanding high skill from maintenance personnel, and inefficient.

[0005] The third design method and testing method, compared to the first two methods, requires all tests to be performed on the operator, which is simpler in terms of operation. However, it requires the elevator to be equipped with two brake contactors as standard. During normal operation of the elevator, if any brake contactor malfunctions, it will cause the elevator to fail. Therefore, adding one contactor will also increase the overall failure rate of the elevator, and the configuration cost of adding one contactor is relatively high. Summary of the Invention

[0006] To address the problems of the above solutions, this invention provides a manual single-arm brake release test system for machine-room-less elevators.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A manual single-arm brake release test system for a machine-room-less elevator includes a main control board KL-MCD-02A, a main control interface board KL-MAD-02A, two test switches SBQ1 and SBQ2, a running contactor KMY, a holding brake contactor KMB, and a door lock contactor KAD.

[0009] By connecting test switches SBQ1 and SBQ2, running contactor KMY, brake contactor KMB, and door lock contactor KAD in series or parallel, a brake operation control circuit and a test circuit are formed.

[0010] The control and testing of the brake operation control circuit and test circuit are performed by the main control board KL-MCD-02A and the main control interface board KL-MAD-02A.

[0011] Furthermore, the brake operation control circuit:

[0012] One end of the brake power supply sequentially supplies power to the left end of the YBK2 electromagnet coil 2 through the normally open contacts 43-44 of the KMY running contactor, the normally open contacts 3L2-4T2 of the KAD door lock contactor, and the normally open contacts 2T1-1L1 and 3L2-4T2 of the KMB brake contactor. Then, it supplies power to the left end of the YBK2 electromagnet coil 2 through the normally closed contacts 1-2 of the SBQ1 brake release switch 1. The other end of the brake power supply supplies power to the right end of the YBK2 electromagnet coil 2 through the normally open contacts 5T1-6L1 of the KMB brake contactor, and then through the normally closed contacts 11-12 of the SBQ1 brake release switch 1. The other end of the brake power supply supplies power to the right end of the YBK2 electromagnet coil 2 through the normally open contacts 5T1-6L1 of the KMB brake contactor, and then through the normally closed contacts 11-12 of the SBQ1 brake release switch 1.

[0013] Furthermore, the brake test circuit:

[0014] One end of the brake power supply is connected to the left end of YBK1 electromagnet coil 1 through normally closed contacts 21-22 of SBQ1 brake release switch 1 and normally open contacts 3-4 of SBQ2 brake release switch 2; and to the left end of YBK2 electromagnet coil 2 through normally closed contacts 21-22 of SBQ2 brake release switch 2 and normally open contacts 3-4 of SBQ1 brake release switch 1. The other end of the brake power supply O2 is directly connected to the right end of YBK1 electromagnet coil 1 through normally open contacts 13-14 of SBQ2 brake release switch 2; and to the right end of YBK2 electromagnet coil 2 through normally open contacts 13-14 of SBQ1 brake release switch 1.

[0015] Furthermore, during normal elevator operation, the energization and de-energization of the brake electromagnet coil are controlled only by the brake operation control circuit. Simultaneously, the normally closed contacts 21-22 of the KMY operating contactor, the normally closed contacts 21-22 of the KMB brake contactor, the normally closed contacts 21-22 of the KAD door lock contactor, the normally closed contacts 31-32 of the SBQ1 brake release switch 1, and the normally closed contacts 31-32 of the SBQ2 brake release switch 2 are respectively connected to the input points of the main board for detection. When the KMY and KMB input detection points are disconnected and there is no low-level input, the KAD input point has no low-level input, and SBQ1 and SBQ2 have low-level input, the elevator start logic is correctly determined, and the elevator can start and run normally.

[0016] Furthermore, in the brake power supply test circuit, SBQ1 brake release switch 1 and SBQ2 brake release switch 2 are set to an interlocked relationship. When a single-arm brake release test is required, only one brake release switch can be switched, switching the power supply of one brake electromagnet coil from the brake operation control circuit during normal operation to the brake power supply test circuit, connecting one set of brake electromagnet coil brake power supplies, while the other remains in the brake operation control circuit during normal operation. When both brake release switches are switched simultaneously, the normally closed contacts 1-2, 11-12, and 21-22 of SBQ1 brake release switch 1 and SBQ2 brake release switch 2 cut off the power supply to YBK1 electromagnet coil 1 and YBK2 electromagnet coil 2.

[0017] Furthermore, when the elevator needs to undergo a dual-arm braking force test, the SBQ1 brake release switch 1 and the SBQ2 brake release switch 2 are rotated to the open state respectively; contacts 1-2, 11-12, and 21-22 of the SBQ1 brake release switch 1 and contacts 1-2, 11-12, and 21-22 of the SBQ2 brake release switch 2 are all disconnected, cutting off the power supply circuit of the YBK1 electromagnet coil and the YBK2 electromagnet coil; at the same time, it is detected that there is no low-level signal when the detection points of SBQ1 and SBQ2 are disconnected. After a voice reminder is broadcast in the car, the elevator door closes and blocks the car floor instructions and the hall call instructions, and the dual-arm braking force static test of brake 1 and brake 2 is carried out first.

[0018] Furthermore, when the elevator needs to perform a single-arm test on brake 1, rotate the SBQ1 brake release switch 1 to the open state. At this time, contacts 21-22 and 1-2 of the SBQ1 brake release switch 1 are disconnected, thereby cutting off the power supply test circuit to the left end of the YBK1 electromagnet coil 1. Contacts 11-12 of the SBQ1 brake release switch 1 are also disconnected, cutting off the power supply test circuit to the right end of the YBK1 electromagnet coil 1. Contacts 3-4 of the SBQ1 brake release switch 1 are closed. When contacts 13-14 close, the brake power test circuit is connected to supply power to the left and right ends of the YBK2 electromagnet coil 2. After the YBK2 electromagnet coil is energized, the brake arm of brake 2 is released. At the same time, it is detected that the detection point input of SBQ1 is disconnected and there is no low level. After the voice reminder is broadcast in the car, the elevator door closes and blocks the car floor command and the hall call command. Then the elevator first performs a static test of the braking force of brake 1 single arm. After the single arm static test is successfully verified, the dynamic test of the braking force of brake 1 single arm is automatically performed.

[0019] Furthermore, when the elevator needs to perform a single-arm test on brake 2, rotate the SBQ2 brake release switch 2 to the open state. At this time, contacts 21-22 and 1-2 of the SBQ2 brake release switch 2 are disconnected, thereby cutting off the power supply test circuit to the left end of the YBK2 electromagnet coil 2. Contacts 11-12 of the SBQ2 brake release switch 2 are also disconnected, cutting off the power supply test circuit to the right end of the YBK2 electromagnet coil 2. Contacts 3-4 of the SBQ2 brake release switch 2 are closed. When contacts 13-14 close, the brake power test circuit is connected to supply power to the left and right ends of the YBK1 electromagnet coil 1. After the YBK1 electromagnet coil is energized, the brake arm of brake 1 is released. At the same time, it is detected that the detection point input of SBQ2 is disconnected and there is no low level. After the voice reminder is broadcast in the car, the elevator door closes and blocks the car floor command and the hall call command. Then the elevator first performs a static test of the braking force of brake 2 on a single arm. After the single arm static test is verified to be successful, the dynamic test of the braking force of brake 2 on a single arm is automatically performed.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention meets the operational requirements of simultaneous release and disengagement of the brake during normal elevator operation, and also meets the requirements for static or dynamic brake testing by releasing a single brake during testing, without requiring rewiring when switching between the two.

[0022] 2. In the brake power supply test circuit of this invention, two test switches are interlocked, so that when the elevator is undergoing brake testing, at most one brake is energized and the brake is released, preventing the accidental release of two sets of brakes due to operational errors and the resulting slippage.

[0023] 3. When both test switches are open, this invention can cut off the power supply to all brakes, forcibly stopping the elevator and effectively preventing slippage accidents caused by insufficient braking force of one set of brakes during the test.

[0024] 4. This invention can perform tests in the order of static testing of the brake double arm, static testing of the brake single arm, and dynamic testing of the brake single arm, without the need for a separate test box. It provides comprehensive testing, is simple to configure, and is easy to operate. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the brake power supply circuit of the present invention;

[0027] Figure 2 This is a schematic diagram of the control and detection loop of the present invention. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1 As shown, a manual single-arm brake release test system for a machine-room-less elevator consists of two test switches and the contacts of a running contactor, a brake contactor, and a door lock contactor connected in series and parallel to form two switchable brake power supply circuits to supply power to the elevator brake. This meets the operational requirements of simultaneous release of the brake during normal operation. During testing, only one set of brakes can be released at most to perform static or dynamic testing of the braking force of the other set of brakes.

[0030] This invention is simple to configure and operate, eliminating the need for two independent brake contactor control circuits. During brake release testing, it does not rely on an operator to access the test menu or trigger the test, nor does it require maintenance personnel to forcefully pull the manual brake release wrench or add a test box to disconnect and rewire the brake. Furthermore, because the brake power supply test circuit incorporates interlocking and signal detection, operation is safer and more convenient, improving maintenance efficiency and ensuring the safety of both the elevator equipment and maintenance personnel.

[0031] Specifically, it consists of a main control board KL-MCD-02A, a main control interface board KL-MAD-02A, two test switches SBQ1 and SBQ2, a running contactor KMY, a brake contactor KMB, and a door lock contactor KAD. Through the contacts of the test switches and contactors, two switchable brake power supply circuits are formed in series and parallel to supply power to the elevator brake, which meets the operating requirements of simultaneous release of the brake during normal operation. During testing, only one set of brakes can be released at most to perform static or dynamic testing of the other set of brakes.

[0032] One of the brake power supplies on the output side of the machine-room-less elevator transformer is the brake operation control circuit during normal operation. One end of the brake power supply, O1, supplies power to the left end of the YBK2 electromagnet coil 2 through the normally open contacts 43-44 of the KMY running contactor, the normally open contacts 3L2-4T2 of the KAD door lock contactor, and the normally open contacts 2T1-1L1 and 3L2-4T2 of the KMB brake contactor. The left end of the YBK1 electromagnet coil 1 is powered through the normally closed contacts 1-2 of the SBQ2 brake release switch 2; the other end 02 of the brake power supply is powered through the normally open contacts 5T1-6L1 of the KMB brake contactor, and then through the normally closed contacts 11-12 of the SBQ1 brake release switch 2 to the right end of the YBK2 electromagnet coil 2, and through the normally closed contacts 11-12 of the SBQ2 brake release switch 2 to the right end of the YBK1 electromagnet coil 1.

[0033] The other circuit of the brake power supply on the output side of the machine-room-less elevator transformer is a test circuit. One end 01 of the brake power supply is directly connected to the left end of YBK1 electromagnet coil 1 through the normally closed contacts 21-22 of SBQ1 brake release switch 1 and the normally open contacts 3-4 of SBQ2 brake release switch 2; and to the left end of YBK2 electromagnet coil 2 through the normally closed contacts 21-22 of SBQ2 brake release switch 2 and the normally open contacts 3-4 of SBQ1 brake release switch 1. The other end 02 of the brake power supply is directly connected to the right end of YBK1 electromagnet coil 1 through the normally open contacts 13-14 of SBQ2 brake release switch 2; and to the right end of YBK2 electromagnet coil 2 through the normally open contacts 13-14 of SBQ1 brake release switch 1.

[0034] When the elevator is running normally, SBQ1 brake release switch 1 and SBQ2 brake release switch 2 are in the closed state. Since contacts 3-4 and 13-14 of SBQ2 brake release switch 2 are both in the open state, the brake power supply test circuit cannot supply power to the left end of YBK1 electromagnet coil 1 through contacts 21-22 of SBQ1 brake release switch 1 and contacts 3-4 of SBQ2 brake release switch 2, nor can it supply power to the right end of YBK1 electromagnet coil 1 through contacts 13-14 of SBQ2 brake release switch 2. Similarly, since contacts 3-4 and 13-14 of SBQ1 brake release switch 1 are both in the open state, the brake power supply test circuit cannot supply power to the left end of YBK2 electromagnet coil 2 through contacts 21-22 of SBQ2 brake release switch 2 and contacts 3-4 of SBQ1 brake release switch 1, nor can it supply power to the right end of YBK2 electromagnet coil 2 through contacts 13-14 of SBQ1 brake release switch 1. The energization and de-energization of the brake electromagnet coil are controlled only by the brake operation control circuit composed of the KMY running contactor, the KMB holding brake contactor, and the KAD door lock contactor. At the same time, the normally closed contacts 21-22 of the KMY running contactor, the normally closed contacts 21-22 of the KMB holding brake contactor, the normally closed contacts 21-22 of the KAD door lock contactor, the normally closed contacts 31-32 of the SBQ1 brake release switch 1, and the normally closed contacts 31-32 of the SBQ2 brake release switch 2 are respectively connected to the input points of the main board for detection. Only when the KMY and KMB input detection points are disconnected and there is no low-level input, the KAD input point has no low-level input, and SBQ1 and SBQ2 have low-level input, can the elevator starting logic be determined correctly, and the elevator can start and run normally, thereby ensuring the safety of the elevator during operation.

[0035] In the brake power supply test circuit, SBQ1 brake release switch 1 and SBQ2 brake release switch 2 are interlocked. When a single-arm brake release test is required, only one brake release switch can be switched, changing the power supply of one brake electromagnet coil from the normal brake operation control circuit to the brake power supply test circuit, thus activating the brake power supply for one set of brake electromagnet coils. The other switch remains in the normal brake operation control circuit. If both brake release switches are switched simultaneously, the normally closed contacts 1-2, 11-12, and 21-22 of SBQ1 brake release switch 1 and SBQ2 brake release switch 2 disconnect the power supply to YBK1 electromagnet coil 1 and YBK2 electromagnet coil 2.

[0036] When the elevator needs to undergo a dual-arm braking force test, the SBQ1 brake release switch 1 and the SBQ2 brake release switch 2 are rotated to the open position. Contacts 1-2, 11-12, and 21-22 of the SBQ1 brake release switch 1 and the SBQ2 brake release switch 2 are all disconnected, cutting off the power supply circuits to the YBK1 and YBK2 electromagnet coils. Simultaneously, the system detects that there is no low-level signal at the disconnected detection points of SBQ1 and SBQ2. After a 30-second voice prompt is played inside the elevator car, the elevator doors close and the car floor commands and hall call commands are blocked, allowing for a static test of the dual-arm braking force of brakes 1 and 2.

[0037] When the elevator needs to undergo a single-arm test of brake 1, rotate SBQ1 brake release switch 1 to the open position. At this time, contacts 21-22 and 1-2 of SBQ1 brake release switch 1 are disconnected, thus cutting off the power supply test circuit to the left end of YBK1 electromagnet coil 1. Contacts 11-12 of SBQ1 brake release switch 1 are also disconnected, thus cutting off the power supply test circuit to the right end of YBK1 electromagnet coil 1. Contacts 3-4 and 13-1 of SBQ1 brake release switch 1 are closed. When contact 4 closes, the brake power test circuit is connected to supply power to the left and right ends of the YBK2 electromagnet coil 2. After the YBK2 electromagnet coil is energized, the brake arm of brake 2 is released. At the same time, the system detects that the detection point input of SBQ1 is disconnected and there is no low level. After a voice reminder is broadcast in the car for 30 seconds, the elevator door closes and blocks the car floor command and the hall call command. Then the elevator first performs a static test of the braking force of brake 1 single arm. After the single arm static test is successfully verified, the dynamic test of the braking force of brake 1 single arm is automatically performed.

[0038] When the elevator needs to undergo a single-arm test of brake 2, rotate SBQ2 brake release switch 2 to the open position. At this time, contacts 21-22 and 1-2 of SBQ2 brake release switch 2 are disconnected, thus cutting off the power supply test circuit to the left end of YBK2 electromagnet coil 2. Contacts 11-12 of SBQ2 brake release switch 2 are also disconnected, thus cutting off the power supply test circuit to the right end of YBK2 electromagnet coil 2. Contacts 3-4 and 13-1 of SBQ2 brake release switch 2 are closed. When contact 4 closes, the brake power test circuit is connected to supply power to the left and right ends of YBK1 electromagnet coil 1. After YBK1 electromagnet coil is energized, the brake arm of brake 1 is released. At the same time, the system detects that the detection point input of SBQ2 is disconnected and there is no low level. After a voice reminder is broadcast in the car for 30 seconds, the elevator door closes and blocks the car floor command and the hall call command. Then the elevator first performs a static test of the braking force of brake 2 single arm. After the single arm static test is successfully verified, the dynamic test of the braking force of brake 2 single arm is automatically performed.

[0039] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A machine room less elevator manual single arm brake release test system, characterized by, The main control board KL-MCD-02A, the main control interface board KL-MAD-02A, two test switches SBQ1 and SBQ2, the running contactor KMY, the brake contactor KMB, and the door lock contactor KAD are included. The brake running control circuit and the test circuit are formed by the series connection or the parallel connection between the test switches SBQ1 and SBQ2, the running contactor KMY, the brake contactor KMB, and the door lock contactor KAD. The brake running control circuit and the test circuit are controlled and tested by the main control board KL-MCD-02A and the main control interface board KL-MAD-02A. The brake running control circuit: One end of the brake power supply is sequentially connected to the 43-44 normally open contact of the KMY running contactor, the 3L2-4T2 normally open contact of the KAD door lock contactor, the 2T1-1L1 and 3L2-4T2 normally open contact of the KMB brake contactor, and then connected to the left end of the YBK2 electromagnet coil 2 through the 1-2 normally closed contact of the SBQ1 brake release switch 1 and the left end of the YBK1 electromagnet coil 1 through the 1-2 normally closed contact of the SBQ2 brake release switch 2. The other end of the brake power supply is connected to the 5T1-6L1 normally open contact of the KMB brake contactor, and then connected to the right end of the YBK2 electromagnet coil 2 through the 11-12 normally closed contact of the SBQ1 brake release switch 1 and the right end of the YBK1 electromagnet coil 1 through the 11-12 normally closed contact of the SBQ2 brake release switch 2.

2. The machine room less elevator manual single arm brake release test system according to claim 1, wherein, The brake test circuit: One end of the brake power supply is connected to the left end of the YBK1 electromagnet coil 1 through the 21-22 normally closed contact of the SBQ1 brake release switch 1 and the 3-4 normally open contact of the SBQ2 brake release switch 2. The left end of the YBK2 electromagnet coil 2 is connected to the 21-22 normally closed contact of the SBQ2 brake release switch 2 and the 3-4 normally open contact of the SBQ1 brake release switch 1. The other end of the brake power supply is directly connected to the right end of the YBK1 electromagnet coil 1 through the 13-14 normally open contact of the SBQ2 brake release switch 2 and the right end of the YBK2 electromagnet coil 2 through the 13-14 normally open contact of the SBQ1 brake release switch 1.

3. The machine room less elevator manual single arm brake release test system of claim 1, wherein, When the elevator is running normally, the on-off power of the brake electromagnet coil is controlled by the brake running control circuit, and the 21-22 normally closed contact of the KMY running contactor, the 21-22 normally closed contact of the KMB brake contactor, the 21-22 normally closed contact of the KAD door lock contactor, the 31-32 normally closed contact of the SBQ1 brake release switch 1, and the 31-32 normally closed contact of the SBQ2 brake release switch 2 are connected to the input points of the main board for detection. When the KMY and KMB input detection points are disconnected and have no low-level input, the KAD input point has no low-level input, and the SBQ1 and SBQ2 have low-level input, the elevator startup logic is correct, and the elevator can start running normally.

4. The machine room less elevator manual single arm brake release test system of claim 2, wherein, In the brake power test circuit, SBQ1 brake release switch 1 and SBQ2 brake release switch 2 are set in an interlocking relationship. When single-arm release test is needed, only one brake release switch can be switched, and the power supply of one brake electromagnet coil is switched from the normal running brake operation control circuit to the brake power test circuit, and a group of brake electromagnet coil brake power is turned on, and the other is still in the normal running brake operation control circuit. When both brake release switches are switched at the same time, the 1-2 normally closed contact, 11-12 normally closed contact, 21-22 normally closed contact of SBQ1 brake release switch 1 and SBQ2 brake release switch 2 cut off the power supply of YBK1 electromagnet coil 1 and YBK2 electromagnet coil 2.

5. A machine room less elevator manual single arm brake release test system according to claim 4, wherein, When the elevator needs to be tested for double-arm braking force, SBQ1 brake release switch 1 and SBQ2 brake release switch 2 are rotated to the open state respectively; the 1-2 contact, 11-12 contact, 21-22 contact of SBQ1 brake release switch 1 and the 1-2 contact, 11-12 contact, 21-22 contact of SBQ2 brake release switch 2 are all disconnected, cutting off the power supply circuit of YBK1 electromagnet coil and YBK2 electromagnet coil; At the same time, the detection point of SBQ1 and SBQ2 input is disconnected without low-level signal, after the voice broadcast in the car reminds, the elevator closes the door and shields the car floor command and the hall call command, and then the double-arm braking force static test of brake 1 and brake 2 is carried out.

6. A machine room less elevator manual single arm brake release test system as claimed in claim 4, wherein, When the elevator needs to be tested for single-arm brake 1, rotate SBQ1 brake release switch 1 to the open state. At this time, the 21-22 contact and 1-2 contact of SBQ1 brake release switch 1 are disconnected, thereby cutting off the left end power supply of YBK1 electromagnet coil 1 in the brake power test circuit, the 11-12 contact of SBQ1 brake release switch 1 is disconnected, thereby cutting off the right end power supply of YBK1 electromagnet coil 1 in the brake power test circuit, the 3-4 contact and 13-14 contact of SBQ1 brake release switch 1 are closed, thereby connecting the left end power supply and right end power supply of YBK2 electromagnet coil 2 in the brake power test circuit, YBK2 electromagnet coil is energized, brake 2 arm is released, and at the same time, the detection point of SBQ1 input is disconnected without low-level, after the voice broadcast in the car reminds, the elevator closes the door and shields the car floor command and the hall call command, then the elevator first carries out single-arm braking force static test of brake 1, and then automatically carries out single-arm braking force dynamic test of brake 1.

7. A machine room less elevator manual single arm brake release test system as claimed in claim 4, wherein, When the elevator needs to carry out the brake 2 single-arm test, the SBQ2 brake release switch 2 is rotated to the open state, at this time the 21-22 contact and 1-2 contact of the SBQ2 brake release switch 2 are disconnected to cut off the brake power supply test loop to the left end of the YBK2 electromagnet coil 2, the 11-12 contact of the SBQ2 brake release switch 2 is disconnected to cut off the brake power supply test loop to the right end of the YBK2 electromagnet coil 2, the 3-4 contact and 13-14 contact of the SBQ2 brake release switch 2 are closed to connect the brake power supply test loop to the left end and the right end of the YBK1 electromagnet coil 1, after the YBK1 electromagnet coil is powered on, the brake 1 brake arm is released, at the same time, the detection point input by the SBQ2 is detected to be disconnected and has a low level, after the in-car broadcast voice is reminded, the elevator door is closed and the car floor instruction and the hall outside call instruction are shielded, then the elevator first carries out the brake 2 single-arm brake force static test, and then automatically carries out the brake 2 single-arm brake force dynamic test after the single-arm static test is verified to be successful.

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