Failure detection device for continuous conveying machine and continuous conveying machine

Abstract

The utility model discloses a fault detection device of a continuous conveying mechanical device and the continuous conveying mechanical device, which are characterized in that a detection plate and a plurality of communication modules are arranged, and the communication modules are connected with safety switches in the continuous conveying mechanical device in a one-to-one correspondence manner; each communication module sends a state signal representing the on-off state of the safety switch to the detection board through the communication bus, the detection board realizes fault detection according to the state signal, and each communication module is arranged at a position adjacent to the corresponding safety switch. On the basis of the communication function of the detection board, the multiple communication modules are arranged to receive the on-off state signals of the safety switches respectively and send the on-off state signals to the detection board through the same line, the detection board can be connected with all the safety switches only through one communication line, and the detection board does not need to be connected with each safety switch respectively; the number of connecting wires in the continuous conveying mechanical device is remarkably reduced, and the complexity of a wiring environment and the line maintenance and repair difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the field of circuits, and particularly to a fault detection device for a continuous conveying mechanical device and the continuous conveying mechanical device. Background Art

[0002] For escalators, moving walks and other similar continuous conveying mechanical devices, a detection board for identifying faults is usually arranged inside. A plurality of safety detection devices with different functions and their corresponding safety switches are also arranged in the continuous conveying mechanical device. When an abnormality is detected by a certain safety detection device, the corresponding safety switch is controlled to disconnect. When the detection board detects that a safety switch is disconnected, it can be determined that there is a fault inside the continuous conveying mechanical device, and then a safety protection operation is performed to ensure the safety of the personnel and goods on the device.

[0003] In the prior art, when connecting the detection board and each safety switch, usually each detection port on the detection board is correspondingly connected to each safety switch one by one, resulting in a large number of connecting wires inside the continuous conveying mechanical device, and there are problems of complex wiring environment and great difficulty in line maintenance and overhaul. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fault detection device for a continuous conveying mechanical device and the continuous conveying mechanical device. The detection board only needs to use one communication line to connect all the safety switches, and does not need to connect each safety switch separately, significantly reducing the number of connecting wires inside the continuous conveying mechanical device, and reducing the complexity of the wiring environment and the difficulty of line maintenance and overhaul.

[0005] To solve the above technical problems, the utility model provides a fault detection device for a continuous conveying mechanical device, including:

[0006] A detection board and M communication modules, where M is an integer not less than 2;

[0007] The M communication modules are correspondingly connected to M safety switches in the continuous conveying mechanical device one by one. The signal output ends of the M communication modules are all connected to a communication bus. The communication module is used to output a status signal representing the on-off state of the safety switch;

[0008] The detection board is connected to the communication bus, and the detection board is used to perform fault detection according to the status signal;

[0009] Wherein, the communication module is arranged at a position adjacent to the safety switch corresponding to the communication module itself.

[0010] On the one hand, a relay is further included;

[0011] The power supply, the M safety switches, and the coil of the relay are connected in series in sequence;

[0012] The normally open contact of the relay is arranged between the power supply and the total power supply terminal of the continuous conveying mechanical device.

[0013] On the one hand, it further includes a protection switch;

[0014] The protection switch is connected in series with the coil of the relay;

[0015] The protection switch is used to close when the mechanical structure of the continuous conveying mechanical device is normal and to open when the mechanical structure of the continuous conveying mechanical device is abnormal.

[0016] On the one hand, it further includes a prompting module;

[0017] The prompting module is connected to the detection board;

[0018] The prompting module is used to give a prompt when the detection board detects a fault.

[0019] On the one hand, it further includes a power supply;

[0020] The power supply and the M communication modules are both connected to the power supply bus, and the power supply is used to supply power to the detection board and the M communication modules;

[0021] Wherein, the power supply bus and the communication bus are in the same line.

[0022] On the one hand, the communication module is a CAN communication module.

[0023] On the one hand, it further includes:

[0024] The number of the detection boards is multiple;

[0025] For any one of the safety switches, the detection board closest to itself is used as the connection board corresponding to the safety switch;

[0026] For any one of the connection boards, the connection board and all the safety switches corresponding to the connection board are connected in series.

[0027] The present utility model further provides a continuous conveying mechanical device, which includes a continuous conveying mechanical device body and M safety switches, and further includes a fault detection device of the continuous conveying mechanical device as described above;

[0028] The continuous conveying mechanical device body is connected to the fault detection device of the continuous conveying mechanical device.

[0029] The present utility model provides a fault detection device for a continuous conveying mechanical device and the continuous conveying mechanical device. By providing a detection board and a plurality of communication modules, each communication module is correspondingly connected to each safety switch in the continuous conveying mechanical device. Each communication module sends a status signal indicating the on / off state of the safety switch to the detection board through a communication bus. The detection board realizes fault detection based on the status signal. Each communication module is arranged at an adjacent position to its corresponding safety switch. Based on the communication function of the detection board, by providing a plurality of communication modules to respectively receive the on / off status signals of each safety switch and sending them to the detection board through the same line, the detection board only needs to use one communication line to connect all the safety switches, without the need to connect each safety switch separately, significantly reducing the number of connecting wires inside the continuous conveying mechanical device, reducing the complexity of the wiring environment and the difficulty of line maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the prior art and the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 FIG. 9 is a schematic structural diagram of the lower half of an escalator in the prior art;

[0032] Figure 2 FIG. 13 is a schematic structural diagram of a fault detection device for an escalator provided by the present utility model;

[0033] Figure 3 FIG. 17 is a schematic structural diagram of the lower half of an escalator provided by the present utility model;

[0034] Figure 4 FIG. 21 is a schematic structural diagram of another fault detection device for an escalator provided by the present utility model;

[0035] Figure 5 FIG. 25 is a schematic structural diagram of an escalator provided by the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The core of the present utility model is to provide a fault detection device for a continuous conveying mechanical device and the continuous conveying mechanical device. The detection board only needs to use one communication line to connect all the safety switches, without the need to connect each safety switch separately, significantly reducing the number of connecting wires inside the continuous conveying mechanical device, reducing the complexity of the wiring environment and the difficulty of line maintenance and repair.

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0038] There are many safety detection devices and their corresponding safety switches provided in a continuous conveying mechanical device (such as an escalator or a moving walkway). Since the data parameters collected and detected by different safety detection devices are different, different safety detection devices need to be installed at different positions within the continuous conveying mechanical device to facilitate these safety detection devices to collect the data and parameters they need. In addition, a control cabinet is also installed in the continuous conveying mechanical device, and a detection board is provided in the control cabinet, which is mainly used to detect faults and perform safety operations in a timely manner when a fault is detected to ensure the safety of the personnel and objects on the continuous conveying mechanical device.

[0039] In practical applications, mainly based on whether there are abnormalities in the data and parameters collected by the safety detection device itself, when there are abnormalities, the safety switch corresponding to the safety detection device itself is controlled to disconnect. Then, when the detection board detects that a safety switch is disconnected, it can be considered that a fault has occurred, and then a safety operation is performed.

[0040] Since the length of the continuous conveying mechanical device is usually very long. For example, the length of an escalator is usually about 10 meters, and the length of some moving walks can reach dozens of meters at most. Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the lower half of an escalator in the prior art. When connecting the safety switch and the detection board in the prior art, usually each safety switch is connected in parallel, that is, one detection port on the detection board corresponds to one safety switch to connect all the safety switches respectively. Obviously, this will result in a large number of extremely long (several meters or even dozens of meters) wire materials inside the continuous conveying mechanical device, thereby leading to problems such as a complex wiring environment and great difficulty in maintenance and repair.

[0041] Please refer to Figure 2 , Figure 2 in which the continuous conveying device takes an escalator as an example to illustrate the fault detection device, including:

[0042] a detection board and M communication modules, where M is an integer not less than 2;

[0043] M communication modules are respectively connected to M safety switches in the continuous conveying mechanical device. The signal output ends of the M communication modules are all connected to the communication bus. The communication module is used to output a status signal indicating the on / off state of the safety switch;

[0044] The detection board is connected to the communication bus. The detection board is used to perform fault detection according to the status signal;

[0045] Among them, the communication module is arranged at an adjacent position to the safety switch corresponding to the communication module itself.

[0046] In order to reduce the number of wires inside the continuous conveying mechanical device, so as to reduce the complexity of the wiring environment and the difficulty of maintenance and repair, the utility model mainly adopts a serial connection method to connect all the safety switches to the detection board in a serial manner, so as to achieve the purpose of detecting all the safety switches with only one line.

[0047] Specifically, considering that one detection port in the detection board can only detect the on / off state of one safety switch, directly connecting the detection board and each safety switch will result in too many wires between the two. Therefore, the number of communication modules is the same as the number of safety switches (or the number of safety detection devices) inside the continuous conveying mechanical device. The main purpose of these communication modules is to establish a connection between the detection board and the safety switches (or safety detection devices). The communication module is used to send a signal indicating the on / off state of the safety switch connected to the communication module itself to the detection board (or send a signal indicating that the safety detection device connected to the communication module itself detects an abnormality to the detection board), and send it to the communication port of the detection board through the communication line between the communication module and the detection board. After receiving the signal, the detection board can determine that a fault has occurred and then perform a safety operation. It should be noted that the generation of the above abnormal signal can be generated by the safety detection device after detecting an abnormality, or the communication module can detect the on / off state of the safety switch by itself. The utility model does not limit this.

[0048] When connecting the communication module and the detection board, it is understandable that no matter which safety switch is detected by the detection board to be disconnected, the detection board will perform a safety operation. Each safety switch is correspondingly connected to a communication module, and an address code corresponding to the position of the safety switch one by one is set for the communication module, so that the detection board can locate the faulty switch through the address code. In this embodiment, the communication modules corresponding to all safety switches are connected to the communication port of the detection board through the same line (i.e., the communication bus). Each communication module sends a status signal to the detection board. The detection board determines whether there is a fault in the entire continuous conveying mechanical device according to the on / off state of the switch indicated by the status signal. As long as a status signal indicating that the safety switch is disconnected is detected, a safety operation will be performed. Based on the communication bus, the first communication end of each communication module is connected to its corresponding safety switch (or safety detection device), and the second communication end is connected to the communication bus, so that the signal received by the communication module from the first communication end is input into the communication bus through the second communication end and finally transmitted to the detection board by the communication bus.

[0049] In this way, each communication module is arranged adjacent to its corresponding safety switch. Specifically, the distance between the communication module and the corresponding safety switch is less than a preset distance (the preset distance needs to be set very small, such as more than a dozen centimeters). Furthermore, the communication module, the safety switch and the safety detection device can be regarded as a whole, and a line extends from this whole to connect to the communication bus. By reasonably arranging the routing of the communication bus in the continuous conveying mechanical device, the communication bus starts from the detection board, passes through each communication module in turn and then returns to the detection board. In this way, the detection board can use only one line of the communication bus to connect all communication modules without connecting each communication module and safety switch separately.

[0050] Furthermore, in order to facilitate the subsequent maintenance and troubleshooting of faults by the staff, a unique identifier can be set for each installed detection device and its corresponding safety switch, and the same identifier can also be set for the communication device corresponding to the safety detection device. When the communication device sends a status signal to the detection board, the identifier can be sent to the detection board together, so that the detection board can determine the on / off state of the switch corresponding to each identifier.

[0051] In summary, by providing a detection board and multiple communication modules, each communication module is connected to each safety switch in the continuous conveying mechanical device in one-to-one correspondence. The signal output ends of all communication modules are connected to a communication bus. The communication module is used to output a status signal indicating the on / off state of the safety switch. The detection board is connected to the communication bus and is used to perform fault detection based on the status signal. Among them, the communication module is arranged at a position adjacent to the safety switch corresponding to itself. Based on the communication function of the detection board, by providing multiple communication modules to respectively receive the on / off status signals of each safety switch and sending them to the detection board through the same line, the detection board only needs to use one communication line to connect all the safety switches, without the need to connect each safety switch separately, significantly reducing the number of connecting wires inside the continuous conveying mechanical device, reducing the complexity of the wiring environment, and also reducing the difficulty of line maintenance and repair.

[0052] Based on the above embodiments:

[0053] In some embodiments, a relay is further included;

[0054] The power supply, M safety switches, and the coil of the relay are connected in series in sequence;

[0055] The normally open contact of the relay is arranged between the power supply and the total power supply terminal of the continuous conveying mechanical device.

[0056] To effectively achieve safety control, in the present utility model, please refer to Figure 3 and Figure 4 , Figure 3 which is a schematic structural diagram of the lower half of an escalator provided by the present utility model, Figure 4 and

[0057] which is a schematic structural diagram of another fault detection device for an escalator provided by the present utility model. By providing a relay, the normally open contact of the relay determines whether all the electrical appliances in the entire continuous conveying mechanical device (such as an escalator or a moving walk) are powered on, specifically connected between the main power supply and the total power supply terminal of the continuous conveying mechanical device. To protect the personnel and objects on the continuous conveying mechanical device in a timely manner when a fault occurs in the continuous conveying mechanical device, all the safety switches are connected in series, and the coil of the relay is also connected in series with these safety switches. Based on the on / off of the safety switches, it is determined whether the coil of the relay is powered on.During the normal operation of the continuous conveying mechanical device, all safety switches are normally closed, and the power supply current can pass through each safety switch in sequence to reach the relay coil, causing the normally open contact of the relay to close, and the entire continuous conveying mechanical device is normally powered on; when any one of the safety switches is opened, it will cause all the circuits subsequent to this safety switch to lose power, that is, it will cause the subsequent other safety switches and the relay coil to lose power, causing the normally open contact of the relay to lose power and open, and the entire continuous conveying mechanical device to power off and stop. In this way, when a fault occurs, the power supply of the entire continuous conveying mechanical device is interrupted and it stops running to ensure the safety of personnel and objects on the continuous conveying mechanical device.

[0058] For the safety switch, in addition to realizing the fault detection of the detection board, it also realizes the control of the relay. When an abnormality causes any one of the safety switches to open, the safety circuit including the above-mentioned safety switch causes the relay coil to lose power, thereby disconnecting the power supply of the power supply relay, and the purpose of immediately powering off when a fault occurs can be achieved without additional new devices.

[0059] In some embodiments, a protection switch is further included;

[0060] The protection switch is connected in series with the coil of the relay;

[0061] The protection switch is used to close when the mechanical structure of the continuous conveying mechanical device is normal and open when the mechanical structure of the continuous conveying mechanical device is abnormal.

[0062] In order to further achieve safety control, in the present utility model, considering that in actual applications, there may be some special abnormal situations, such as a certain safety detection device fails and cannot detect relevant fault types, or the physical structure of the continuous conveying mechanical device is damaged and cannot be detected by the safety detection device. When such an abnormal situation occurs, the detection board may not be able to normally detect the fault. Therefore, please refer to Figure 4 , Figure 4 which is a schematic structural diagram of another fault detection device for an escalator provided by the present utility model. A protection switch is also provided and connected in series with each safety switch and the relay coil mentioned in the above embodiments. The main function of this protection switch is to immediately open when a serious fault occurs in the continuous conveying mechanical device.

[0063] The associated protection switch is also provided with a corresponding sensor, which can be a sensor built into the continuous conveying mechanism, such as a transmission speed sensor for detecting the continuous conveying mechanism, or an intelligent camera for detecting whether the physical structure of the continuous conveying mechanism is damaged. When the sensor detects an abnormality (for example, a step of the escalator is loose or missing), the sensor will send a high-level signal to the safety switch, and when the safety switch detects the high-level signal, it will disconnect, thereby causing the relay coil to lose power. In this way, safety control can be further achieved to ensure the safety of people and objects on the continuous conveying mechanism.

[0064] In some embodiments, a prompt module is also included;

[0065] The prompt module is connected to the detection board;

[0066] The prompt module is used to issue a prompt when the detection board detects a fault.

[0067] In order to promptly remind people near the continuous conveying mechanical device, the utility model is also provided with a prompt module. When the detection board detects a fault, it will send a prompt signal to the prompt module. After receiving the prompt signal, the prompt module will issue a prompt to remind the continuous conveying mechanical device of the fault. The specific type of the prompt module can be an auditory prompt module, such as a buzzer or a speaker, etc.; it can also be a visual prompt module, such as a light-emitting diode or a display screen, etc. The utility model does not limit the specific type of the prompt module.

[0068] In some embodiments, a power supply is also included;

[0069] The power supply and the M communication modules are connected to the power supply bus, and the power supply is used to supply power to the detection board and the M communication modules;

[0070] The power supply bus and the communication bus are in the same line.

[0071] In combination with the above embodiment, since the entire continuous conveying mechanical device will be powered off when a fault occurs, if the communication module is also powered off, the staff cannot know which safety switch is disconnected, and each safety switch needs to be checked one by one, which affects the efficiency of the check. Based on this, in the utility model, an additional power supply is provided, which is specifically used to power the communication module and the detection board to ensure that the communication module can normally output the status signal, the detection board can normally receive the status signal, and the staff can normally determine the identification of the specific disconnected safety switch from the detection board, so that the position of the safety switch can be simply and accurately located.

[0072] In addition, when the power supply is a battery, the total power supply of the continuous conveying mechanical device can be used as the power supply for charging; when the power supply is a general power supply, the mains power can be separately connected to supply power to the power supply.

[0073] In some embodiments, the communication module is a CAN communication module.

[0074] To achieve parallel communication, in the present utility model, CAN (Controller Area Network) communication is adopted. Based on the principle of CAN communication, before the CAN communication module sends the status signal of the safety switch to the communication bus, it will first detect whether there are other status signals in the bus, that is, the CAN communication module will monitor whether other CAN communication modules are sending signals. If not, the CAN communication module will start sending signals; if so, it will wait until other CAN communication modules finish sending and then send.

[0075] Specifically, since the number of CAN communication modules is multiple, in order to avoid signal conflicts caused by multiple CAN communication modules simultaneously attempting to send status signals, the above embodiments can be combined. Because each CAN communication module has its own identifier, the signal sending order of each CAN communication module can be determined according to the size of the identifier, and the status signals of each CAN communication module are sent to the detection board in sequence. In this way, the CAN communication module can achieve parallel communication, that is, all CAN communication modules transmit data on the same communication bus and do not interfere with each other. This not only reduces the number of wires and the wiring complexity, but also improves the communication efficiency and reliability.

[0076] In some embodiments, it further includes:

[0077] The number of detection boards is multiple;

[0078] For any safety switch, the detection board closest to itself is used as the connection board corresponding to the safety switch;

[0079] For any connection board, the connection board and all safety switches corresponding to the connection board are connected in series.

[0080] Since continuous conveying mechanical devices are usually long, for example, the length of an escalator is usually about 10 meters, and the length of some moving walkways can reach dozens of meters at most. Since various safety detection devices and safety switches are distributed at different positions in the continuous conveying mechanical device, obviously, if only one detection board is installed in the continuous conveying mechanical device and all safety switches are connected to this detection board, the wire length in the continuous conveying mechanical device will be too long, affecting the control efficiency of the relay coil.

[0081] Furthermore, if the method of connecting each detection terminal on the detection board to each safety switch in the prior art is adopted, it will also cause a large number of ultra-long wires inside the continuous conveying mechanical device, seriously affecting the wiring environment.

[0082] Therefore, in order to improve efficiency, a plurality of detection boards are installed inside it, and each safety detection device is connected to the detection board closest to itself. Taking an escalator as an example, please refer to Figure 5 , Figure 5 which is a schematic structural diagram of an escalator provided by the present invention. Detection boards are respectively installed in the upper half and the lower half of the escalator. The detection board in the upper half is connected in series with all the safety switches located in the upper half of the escalator, and the detection board in the lower half is connected in series with all the safety switches located in the lower half of the escalator, forming two independent detection systems. Further, the two detection boards are connected by a line to connect the two independent detection systems, so as to realize the synchronous control between multiple detection boards.

[0083] Combined with the above embodiments, for the relay, the relay can be set only in the upper half or the lower half, and the power supply control of the relay coil is realized through the connection between the two detection boards. Specifically, assuming that the relay is set in the lower half, if an abnormality is detected by the detection board in the upper half, the detection board in the upper half sends a signal indicating a fault to the detection board in the lower half through the line, and the detection board in the lower half controls the above-mentioned safety switch to disconnect to cut off the power supply of the relay coil, so as to achieve the purpose of fault shutdown.

[0084] The present invention also provides a continuous conveying mechanical device, which includes a continuous conveying mechanical device body and M safety switches, and also includes the fault detection device of the continuous conveying mechanical device as described above;

[0085] The continuous conveying mechanical device body is connected to the fault detection device of the continuous conveying mechanical device.

[0086] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts between each embodiment can be referred to each other. For the continuous conveying mechanical device disclosed in the embodiment, since it corresponds to the fault detection device disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the fault detection device part.

[0087] Those skilled in the art may further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present utility model.

[0088] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather should be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fault detection device for a continuous conveying mechanical device, characterized in that, Including: A detection board and M communication modules, where M is an integer not less than 2; The M communication modules are respectively connected to M safety switches in a continuous conveying mechanical device one by one. The signal output ends of the M communication modules are all connected to a communication bus. The communication module is used to output a status signal representing the on / off state of the safety switch; The detection board is connected to the communication bus, and the detection board is used to perform fault detection according to the status signal; Wherein, the communication module is arranged at an adjacent position to the safety switch corresponding to the communication module itself.

2. The fault detection device for the continuous conveying mechanical device according to claim 1, characterized in that, It further includes a relay; A power supply, the M safety switches, and the coil of the relay are connected in series in sequence; The normally open contact of the relay is arranged between the power supply and the total power supply end of the continuous conveying mechanical device.

3. The fault detection device for the continuous conveying mechanical device according to claim 2, characterized in that, It further includes a protection switch; The protection switch is connected in series with the coil of the relay; The protection switch is used to close when the mechanical structure of the continuous conveying mechanical device is normal and to open when the mechanical structure of the continuous conveying mechanical device is abnormal.

4. The fault detection device for the continuous conveying mechanical device according to claim 1, characterized in that, It further includes a prompting module; The prompting module is connected to the detection board; The prompting module is used to give a prompt when the detection board detects a fault.

5. The fault detection device for the continuous conveying mechanical device according to claim 1, characterized in that, It further includes a power supply; The power supply and the M communication modules are both connected to a power supply bus. The power supply is used to supply power to the detection board and the M communication modules; Wherein, the power supply bus and the communication bus are in the same line.

6. The fault detection device for the continuous conveying mechanical device according to claim 1, characterized in that, The communication module is a CAN communication module.

7. The fault detection device for the continuous conveying mechanical device according to any one of claims 1 to 6, characterized in that, It further includes: The number of the detection boards is multiple; For any one of the safety switches, the detection board closest to itself is used as the connection board corresponding to the safety switch; For any one of the connection boards, the connection board and all the safety switches corresponding to the connection board are connected in series.

8. A continuous conveying mechanical device, characterized in that, It includes a continuous conveying mechanical device body and M safety switches, and further includes a fault detection device for the continuous conveying mechanical device according to any one of claims 1 to 7; The continuous conveying mechanical device body is connected to the fault detection device of the continuous conveying mechanical device.

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