Safety demonstration device

Abstract

The invention belongs to the technical field of safety training education, and discloses a safety demonstration device which comprises a box body, a driving motor, a switch assembly and a control panel. The box body comprises an observation face and a switch door. A moving assembly is arranged at the output end of the driving motor, and the driving motor can drive the moving assembly to reciprocate. The switch assembly comprises a door body switch and a correlation sensor, the door body switch can obtain opening and closing information of opening and closing the door, and the correlation sensor is arranged in the box body. The control panel comprises a displayer and a controller, the controller is in communication connection with the driving motor and the switch assembly, and the displayer is in communication connection with the controller. The switch assembly can transmit a generated signal to the controller, so that the controller controls the driving motor to work or stop working, and then the motion assembly has different motion states. Observers can know signals and corresponding effects generated by all parts in the switch assembly by combining the display content of the display and the motion state of the motion assembly, and the safe demonstration effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of safety training and education, and particularly relates to a safety demonstration device. Background Art

[0002] In the tobacco industry, cigarette factories have a variety of different equipment, and operators need to control or inspect each piece of equipment. Therefore, new employees need to receive a certain amount of safety education and training when they enter the factory to deepen their understanding of various equipment and reduce the possibility of accidents during the production process.

[0003] Nowadays, the safety education and training for employees entering the factory are mostly carried out in theoretical classrooms, and multimedia demonstrations and other methods are used to show employees the characteristics of each piece of equipment. There is a lack of safety demonstration teaching equipment based on physical objects. In particular, for the safety detection sensors used on some cigarette-making machines, employees do not have an intuitive understanding, making it difficult for employees to obtain good safety education effects. Summary of the Invention

[0004] The purpose of the present invention is to provide a safety demonstration device to conduct safety demonstrations for employees in cigarette factories, so that employees can obtain good safety education effects.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A safety demonstration device, which includes:

[0007] A box body, the box body includes an observation surface and a switch door;

[0008] A driving motor, a motion component is arranged at the output end of the driving motor, and the driving motor can drive the motion component to move reciprocally;

[0009] A switch component, the switch component includes a door switch and a pair of photoelectric sensors. The door switch is used to obtain the switch information of the switch door, and the pair of photoelectric sensors are arranged inside the box body;

[0010] A control panel, the control panel includes a display and a controller. The controller is communicatively connected to the driving motor and the switch component, and the display is communicatively connected to the controller.

[0011] Preferably, the motion component is a linkage mechanism. The linkage mechanism includes a rotating rod, a swinging rod and a connecting rod for connecting the two. The driving motor can drive the rotating rod to rotate, and the rotation of the rotating rod can drive the swinging rod to swing reciprocally.

[0012] Preferably, a speed reduction component is arranged between the output end of the driving motor and the linkage mechanism. The speed reduction component is used to slow down the swinging speed of the swinging rod.

[0013] Preferably, the speed reduction component includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is connected to the output end of the driving motor. The transmission belt is wound around the outer walls of the driving wheel and the driven wheel. The connecting rod component is connected to the driven wheel, and the radius of the driving wheel is smaller than that of the driven wheel.

[0014] Preferably, the box body is rectangular parallelepiped-shaped. The switch door includes a side switch door provided on the side wall of the box body close to the motion component. The door body switch includes a proximity switch, and the proximity switch is provided between the box body and the side switch door.

[0015] Preferably, the switch door further includes a top switch door provided on the top of the box body. The door body switch assembly further includes a plug-in position switch, and the plug-in position switch is provided between the box body and the top switch door.

[0016] Preferably, the safety demonstration device further includes an emergency stop switch and a disconnecting switch. The opposed sensor, the proximity switch, the plug-in position switch, the emergency stop switch and the disconnecting switch can jointly control the working state of the driving motor.

[0017] Preferably, a control panel mounting box is provided outside the box body. The display is a touch screen. The control panel mounting box includes an avoidance surface, and the touch screen communicates with the outside through the avoidance surface.

[0018] Preferably, the box body includes a frame bracket and a glass wall, and the glass wall is provided between the frame brackets.

[0019] Preferably, a moving component is provided at the bottom of the box body.

[0020] Beneficial effects:

[0021] This embodiment provides a safety demonstration device, which includes a box body, a driving motor, a switch assembly and a control panel. The box body includes an observation surface and a switch door. A motion assembly is arranged at the output end of the driving motor, and the driving motor can drive the motion assembly to reciprocate. The switch assembly includes a door body switch and an opposed sensor. The door body switch is used to obtain the switch information of the switch door, and the opposed sensor is arranged inside the box body. The control panel includes a display and a controller. The controller is communicatively connected to the driving motor and the switch assembly, and the display is communicatively connected to the controller. The switch assembly can transmit the generated signal to the control panel through communicative connection. After receiving the corresponding signal, the controller can make the driving motor work or stop working, and the display can be used to display the signals received by the controller and the working condition of the driving motor. The driving motor working or stopping working will make the motion assembly have different motion states. Observers can combine the display content of the display with the motion state of the motion assembly to know the signals generated by each part of the switch assembly and the corresponding effects, and the safety demonstration effect is good. Description of the Drawings

[0022] Figure 1 is the top sectional view of the safety demonstration device provided by the present invention;

[0023] Figure 2 is the front sectional view of the safety demonstration device provided by the present invention;

[0024] Figure 3 is the swing rod sectional view of the safety demonstration device provided by the present invention;

[0025] Figure 4 is the side schematic view of the control panel installation box of the safety demonstration device provided by the present invention;

[0026] Figure 5 is the front schematic view of the control panel installation box of the safety demonstration device provided by the present invention.

[0027] In the figure:

[0028] 1. Box body; 2. Driving motor; 3. Motion assembly; 31. Rotating rod; 32. Connecting rod; 33. Swing rod; 331. Second installation groove; 34. Mounting seat; 4. Speed reduction assembly; 5. Side switch door; 6. Top switch door; 7. Bearing with housing; 8. Reducer; 9. Moving assembly; 10. Control panel installation box; 101. Avoidance surface. Detailed Embodiment

[0029] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that for the convenience of description, only parts related to the present invention are shown in the drawings, rather than all the structures.

[0030] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; 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 or the interaction relationship between 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 situations.

[0031] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, 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" and "second" are only used for distinction in description and have no special meaning.

[0033] As Figures 1-5 shown, this embodiment provides a safety demonstration device, which includes a box body 1, a driving motor 2, a switch assembly, and a control panel. The box body 1 includes an observation surface and a switch door. A motion assembly 3 is arranged at the output end of the driving motor 2, and the driving motor 2 can drive the motion assembly 3 to reciprocate. The switch assembly includes a door switch and an opposed sensor. The door switch is used to obtain the opening and closing information of the switch door, and the opposed sensor is arranged inside the box body 1. The control panel includes a display and a controller. The controller is communicatively connected to the driving motor 2 and the switch assembly, and the display is communicatively connected to the controller.

[0034] Specifically, during safety training popularization or safety competitions, the box body 1 can protect the internal equipment. Operators and other personnel can observe the movement of the internal moving component 3 of the box body 1 through the observation surface. The observation surface can be a transparent glass or an observation opening, and this embodiment does not limit this. In addition, from a safety perspective, when the moving component 3 is moving, it has kinetic energy, and the box body 1 can prevent operators from being injured by touching the moving component 3. The switch assembly can transmit the generated signal to the control panel by communicating with the control panel. After receiving the corresponding signal, the controller can make the driving motor 2 work or stop working. The display can be used to display the signals received by the controller and the working conditions of the driving motor 2. It can be understood that the working or stopping of the driving motor 2 will cause the moving component 3 to have different movement states. The observers can combine the display content of the display with the movement state of the moving component 3 to know the signals generated by each component of the switch assembly and the corresponding effects, and the safety demonstration effect is good.

[0035] Among them, the switch door can generate corresponding signals in cooperation with the door body switch. After receiving the signal, the controller can control the driving motor 2 to stop working, and the moving component 3 plays a demonstration role in the above safety demonstration device. At this time, the observers can fully understand the working mechanism of the door body switch and know that different signals generated by the door body switch can produce different effects through the controller. In addition, a pair of photoelectric sensors are arranged in the box body 1. The pair of photoelectric sensors includes a transmitting head and a receiving head. When the signal transmitted by the transmitting head can be received by the receiving head, the receiving head generates a received signal; when it cannot be received by the receiving head, the receiving head generates a disconnection signal. When the controller receives the disconnection signal, it can control the driving motor 2 to stop working. At this time, the observers can fully understand that the pair of photoelectric sensors output one kind of signal when there is no occlusion between the two, and output another kind of signal when an occlusion is set between the two, and know that different signals generated by the pair of photoelectric sensors can produce different effects through the controller. Further, there are two groups of pairs of photoelectric sensors, and each group of pairs of photoelectric sensors is respectively arranged at the diagonals of the inner top of the box body 1.

[0036] Further, a programmable control system is set in the control panel, and the programmable control system can be controlled by a Siemens 300PLC, a DC switching power supply, an intermediate relay, a terminal block, an input / output module, etc.

[0037] Specifically, in this embodiment, the motion component 3 is a linkage mechanism. The linkage mechanism includes a rotating rod 31, a swing rod 33, and a connecting rod 32 for connecting the two. The driving motor 2 can drive the rotating rod 31 to rotate, and the rotation of the rotating rod 31 can drive the swing rod 33 to swing. It can be understood that the fixed ends of the rotating rod 31 and the swing rod 33 are respectively rotatably connected to different positions inside the box body 1, and the length of the swing rod 33 is longer than that of the rotating rod 31. The two ends of the connecting rod 32 are respectively connected to the movable ends of the rotating rod 31 and the swing rod 33. When the rotating rod 31 rotates, the connecting rod 32 can drive the swing rod 33 to swing left and right. Further, when the rotating rod 31 and the swing rod 33 are both in the vertical state, the movable ends are at the same height. At this time, the connecting rod 32 is in the horizontal state, and the length of the rotating rod 31 is about half of that of the swing rod 33, and the length of the connecting rod 32 is about 1.3 times that of the swing rod 33. When the rotating rod 31 rotates one circle, the swing amplitude of the swing rod 33 is about 60 degrees. The swing rod 33 has a relatively large length and a certain swing angle, which is more convenient for the observer to watch. Moreover, converting the movement of the driving motor 2 itself into the swing of the linkage mechanism is more convenient for the observer to understand whether the driving motor 2 is working properly. In some other embodiments, the rotating rod 31, the connecting rod 32, and the swing rod 33 can have different length ratios, as long as it is satisfied that when the rotating rod 31 rotates, it can drive the swing rod 33 to swing with an appropriate swing amplitude. This embodiment does not limit this. Further, the components in the linkage mechanism are all made of stainless steel, so that the linkage mechanism has good structural strength and service life.

[0038] Furthermore, in this embodiment, a speed reduction component 4 is provided between the output end of the driving motor 2 and the linkage mechanism. The speed reduction component 4 is used to slow down the swing speed of the swing rod 33. The driving motor 2 itself has a relatively high rotational speed. If the linkage mechanism is directly arranged at the output end of the driving motor 2, it is easy to cause the swing speed of the linkage mechanism to be too fast, and then the connection between the linkage mechanism and the chassis and the internal connection of the linkage mechanism will be quickly worn, reducing the service life. Further, the fixed end of the swing rod 33 is rotatably connected to the mounting seat 34 in the box body 1. The mounting seat 34 includes a first mounting groove, and the swing rod 33 is rotatably connected in the first mounting groove. The movable end of the swing rod 33 includes a second mounting groove 331, and the connecting rod 32 is arranged in the second mounting groove 331 and is rotatably connected to the movable end of the swing rod 33. The first mounting groove and the second mounting groove 331 can enable the swing rod 33 and the connecting rod 32 to have sufficient structural strength in the axial direction along the rotation axis.

[0039] Furthermore, in this embodiment, the speed reduction component 4 includes a driving wheel, a driven wheel and a transmission belt. The driving wheel is connected to the output end of the driving motor 2. The transmission belt is wound around the outer walls of the driving wheel and the driven wheel. The link mechanism is connected to the driven wheel, and the radius of the driving wheel is smaller than that of the driven wheel. The driving motor 2 directly drives the driving wheel to rotate. The driving wheel drives the conveyor belt to move, and then the conveyor belt drives the driven wheel to rotate. It can be understood that since the driving wheel and the driven wheel are connected by a conveyor belt, the driving wheel and the driven wheel have the same linear velocity of rotation. When the linear velocities are the same, the larger the radius, the smaller the angular velocity. The link 32 component is connected to the axis of the driven wheel through a pedestal bearing 7, so that the rotating rod 31 has the same angular velocity as the driven wheel. That is, by setting the speed reduction component 4, the rotation speed of the rotating rod 31 is reduced, and then the swing rod 33 has an appropriate swing rate.

[0040] Furthermore, a speed reducer 8 is also provided at the output end of the driving motor 2. The speed reducer 8 can be selected from existing motors with speed reducers 8, and its specific model is not limited in this embodiment. Moreover, the motor with a speed reducer 8 can also be a multi-stage adjustable speed reducer 8, so as to better control the swing rate of the link mechanism.

[0041] Specifically, in this embodiment, the box body 1 is rectangular parallelepiped. The switch door includes a side switch door 5 provided on the side wall of the box body 1 close to the moving component 3. The door body switch includes a proximity switch, and the proximity switch is provided between the box body 1 and the side switch door 5. The proximity switch is provided with an induction sheet. When the door body approaches the induction sheet, the proximity switch can generate a normal working signal. When the side switch door 5 is not fully closed, the door body is far from the proximity switch, and the proximity switch generates an abnormal signal. This signal is transmitted to the controller, and the controller can control the driving motor 2 to stop working. When the side wall switch door is fully closed, the proximity switch generates a normal working signal. This signal is transmitted to the controller, and the controller can control the driving motor 2 to work normally. By setting the side switch door 5 and the proximity switch, the observer can intuitively understand the working principle of the proximity switch and the state of the proximity switch during actual work in the factory.

[0042] Further, in this embodiment, the door opening and closing also includes a top switch door 6 disposed on the top of the box body 1. The door body switch assembly further includes a plug-in position switch, which is disposed between the box body 1 and the top switch door 6. A plug-in piece is disposed on the door body, and when the plug-in piece is inserted and combined with the plug-in position switch, a normal working signal can be generated. When the top switch door 6 is not fully closed, the plug-in piece cannot be inserted and combined with the plug-in position switch, and the plug-in position switch generates an abnormal signal. This signal is transmitted to the controller, and the controller can control the driving motor 2 to stop working. When the top switch door 6 is fully closed, the plug-in position switch generates a normal working signal. This signal is transmitted to the controller, and the controller can control the driving motor 2 to work normally. By providing the plug-in position switch and the top switch door 6, the observer can intuitively understand the working mechanism of the plug-in position switch and its state during actual operation in the factory. It can be understood that the top switch door 6 is easily accessible to the box body 1 under the action of gravity. Therefore, setting the plug-in position switch can better display the action mechanism of the plug-in position switch. At this time, a proximity switch should be set on the side switch door 5 to show the observer the action mechanisms of different door body switches. In addition, the settings of the two types of switch doors and the two types of switches are all for demonstrating their action mechanisms. Therefore, a proximity switch can also be set on the top switch door 6, and a plug-in position switch can be set on the side switch door 5, or multiple side switch doors 5 can be provided, and each side switch door 5 is respectively provided with different types of door body switches. This embodiment does not limit this.

[0043] Furthermore, in this embodiment, the safety demonstration device further includes an emergency stop switch and a disconnecting switch. The light curtain sensor, proximity switch, plug-in position switch, emergency stop switch and disconnecting switch can jointly control the working state of the driving motor 2. The emergency stop switch is used to press and stop the operation of the device in case of danger. When the emergency stop switch is not pressed, a signal is input to the input module of the controller, indicating that the emergency stop switch is normal and the driving motor 2 works normally. The disconnecting switch is used to isolate the voltage to ensure the safety of high-voltage electrical appliances. The disconnecting switch has four main contacts, which are respectively connected to the AC380V three-phase power supply and the ground wire of the driving motor 2, and there is also a pair of auxiliary contacts connected to DC24V. When the disconnecting switch is closed, a signal is input to the input module of the controller, indicating that the disconnecting switch is normal and the driving motor 2 works normally. Setting the emergency stop switch and the disconnecting switch enables the observer to more intuitively understand the action mechanisms and actual use effects of the emergency stop switch and the disconnecting switch. That is, the driving motor 2 is detected and controlled by the above-mentioned multiple switches in a safety interlock manner. The safety interlock detection signal enters the programmable control system PLC for programming control, and is monitored and started and stopped through the control panel.

[0044] Furthermore, when used as equipment for competition, partial switch failures can be simulated. For example, when the side switch door 5 is opened but the proximity switch fails, the equipment can still start. At this time, the equipment is in an unsafe state with potential safety hazards, which is strictly prohibited in actual production. Therefore, partial switch failures can be simulated as competition questions to examine whether employees are aware of the safety hazards that need to be identified.

[0045] Specifically, in this embodiment, a control panel mounting box 10 is provided outside the box body 1. The display in the control panel is a touch screen. The control panel mounting box 10 includes an avoidance surface 101, and the display screen communicates with the outside through the avoidance surface 101. The control panel needs to be communicatively connected to each sensor and the drive motor 2 inside the box body 1, and the display is required for the observers to use. Therefore, the control panel can be integrally arranged in the control panel mounting box 10 outside the side wall of the box body 1, which is convenient for establishing a communication connection with the inside of the box and convenient for the observers to use. And setting the display as a touch screen makes it easier for the operators to call up various information and process it.

[0046] Specifically, in this embodiment, the box body 1 includes a frame support and a glass wall, and the glass wall is arranged between the frame supports. The frame support is made of stainless steel, and the stainless steel frame can ensure the stability of the overall structural strength of the box body 1. And the glass wall is arranged between the frames so that the side of the glass wall is protected by the frame, preventing the glass wall from bursting due to side pressure. Further, there are two glass walls, which are respectively arranged on the side switch door 5 and the top switch door 6. The bottom plate and the remaining side walls of the box body 1 can be made of materials such as metal and wood, and this embodiment does not limit this.

[0047] Specifically, in this embodiment, a moving assembly 9 is provided at the bottom of the box body 1. Universal wheels are provided at the bottom of the box body 1. By using the universal wheels, the safety demonstration device can be conveniently and quickly moved to different positions for safety training demonstrations in different sessions.

[0048] Specifically, the working principle of the above safety demonstration device is as follows: When teaching is carried out, the operator can start or stop the link mechanism through the touch screen, and can observe signals such as the door switch, emergency stop switch, and isolating switch inside the device through the touch screen. After this safety demonstration device is started, the link mechanism makes a reciprocating motion. When the door at the top or side of the safety demonstration device is opened, or any pair of the two diagonal pairs of light sensors above the box body 1 is blocked, the link mechanism will immediately stop, and the corresponding alarm signal will be immediately output. The monitoring screen can also intuitively reflect which sensor or control device has failed through the color change of the corresponding device. When using the above safety demonstration device in a competition, partial device failures can also be preset, but the link mechanism can still operate. The participants can observe the device status and the monitoring screen to find and eliminate the electrical component failures of the device.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A safety demonstration device, characterized in that Comprising: A box body (1), the box body (1) includes an observation surface and a switch door; A driving motor (2), a moving component (3) is arranged at the output end of the driving motor (2), and the driving motor (2) can drive the moving component (3) to reciprocate; A switch component, the switch component includes a door switch and a light barrier sensor, the door switch can obtain the switch information of the switch door, and the light barrier sensor is arranged inside the box body (1); A control panel, the control panel includes a display and a controller, the controller is communicatively connected to the driving motor (2) and the switch component, and the display is communicatively connected to the controller.

2. The safety demonstration device according to claim 1, wherein, The moving component (3) is a link mechanism, the link mechanism includes a rotating rod (31), a swing rod (33) and a connecting rod (32) for connecting the two, the driving motor (2) can drive the rotating rod (31) to rotate, and the rotation of the rotating rod (31) can drive the swing rod (33) to reciprocate.

3. The safety demonstration device according to claim 2, wherein A speed reduction component (4) is arranged between the output end of the driving motor (2) and the link mechanism, and the speed reduction component (4) is used to slow down the swinging speed of the swing rod (33).

4. The safety demonstration device according to claim 3, characterized in that, The speed reduction component (4) includes a driving wheel, a driven wheel and a transmission belt, the driving wheel is connected to the output end of the driving motor (2), the transmission belt is wound around the outer walls of the driving wheel and the driven wheel, the connecting rod (32) component is connected to the driven wheel, and the radius of the driving wheel is smaller than the radius of the driven wheel.

5. The safety demonstration device according to claim 1, characterized in that, The box body (1) is rectangular parallelepiped-shaped, the switch door includes a side switch door (5) arranged on the side wall of the box body (1) close to the moving component (3), the door switch includes a proximity switch, and the proximity switch is arranged between the box body (1) and the side switch door.

6. The safety demonstration device according to claim 5, characterized in that, The switch door further includes a top switch door (6) arranged on the top of the box body (1), the door switch component further includes a plug-in position switch, and the plug-in position switch is arranged between the box body (1) and the top switch door (6).

7. The safety demonstration device according to claim 6, wherein, The safety demonstration device further includes an emergency stop switch and a disconnecting switch, and the light barrier sensor, the proximity switch, the plug-in position switch, the emergency stop switch and the disconnecting switch can jointly control the working state of the driving motor (2).

8. The safety demonstration device according to any one of claims 1-7, characterized in that, A control panel installation box (10) is arranged outside the box body (1), the display is a touch screen, the control panel installation box (10) includes an avoidance surface (101), and the touch screen communicates with the outside through the avoidance surface (101).

9. The safety demonstration device according to any one of claims 1 to 7, characterized in that The box body (1) includes a frame bracket and a glass wall, and the glass wall is arranged between the frame brackets.

10. The safety demonstration device according to any one of claims 1-7, characterized in that, A moving component (9) is arranged at the bottom of the box body (1).

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