Cylinder residual pressure injury somatosensory device

Abstract

The application discloses a cylinder residual pressure harm somatosensory device, which comprises a body, a test part arranged on the top of the body, first and second clamping plates arranged on the top of the body and oppositely arranged on the two sides of the test part, a gas path driving unit comprising a gas source, a valve control assembly and a cylinder, the gas source being connected with first and second cavities of the cylinder through the valve control assembly, and an output end of the cylinder being coupled with one of the first and second clamping plates to drive the first and second clamping plates to move in the direction of approaching or moving away from each other, a test piece arranged on the test part, an inductor for detecting objects on the test part except the test piece, and a controller for controlling the valve control assembly to work according to the sensing result of the inductor.

Description

Technical Field

[0001] This application belongs to the technical field of industrial safety training equipment, and in particular relates to a device for sensing cylinder residual pressure injury. Background Technology

[0002] In the field of safety education and training in industrial enterprises, traditional methods rely heavily on theoretical explanations, primarily through PPT presentations and classroom lectures. This model is extremely monotonous and lacks practical and interactive elements, making it difficult to stimulate employee interest, resulting in low participation and poor knowledge absorption. Complex and dangerous topics such as cylinder residual pressure injuries are difficult to present vividly. While some technologies use motion-sensing devices to demonstrate cylinder injuries, these methods pose certain safety hazards during the demonstration process. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a cylinder residual pressure injury sensory device, which allows employees to intuitively experience the injury, greatly enhancing participation and learning interest, and reducing safety hazards during the demonstration process.

[0004] This application provides a device for sensing cylinder residual pressure injury, including:

[0005] The body has an experimental section on its top.

[0006] The first clamping plate and the second clamping plate are located on the top of the machine body and are positioned opposite each other on both sides of the test section;

[0007] The pneumatic drive unit includes an air source, a valve control assembly, and a cylinder. The air source is connected to the first and second chambers of the cylinder through the valve control assembly. The output end of the cylinder is poweredly coupled to one of the first and second clamping plates to drive the first and second clamping plates to move in a direction that moves closer to or further away from each other.

[0008] The test specimens are placed in the testing section;

[0009] Sensors, located on the machine body, are used to detect objects on the test section other than the test piece;

[0010] The controller is electrically connected to the sensor and valve control assembly. The controller is used to control the operation of the valve control assembly based on the sensing results of the sensor.

[0011] According to the cylinder residual pressure injury haptic device of this application, through the first and second clamping plates on both sides of the test section on the top of the machine body, and with the coordinated operation of the air circuit drive unit, the clamping plates simulate the pinching injury scenario caused by cylinder residual pressure leading to abnormal equipment operation. Employees can intuitively experience this, greatly improving participation and learning interest, and effectively solving the problems of traditional training lacking hands-on practice and interaction, and poor knowledge absorption. The sensors equipped with the device can monitor the test section from all directions and accurately identify abnormal objects. Once an abnormality is detected, a signal is quickly fed back to the controller, which then precisely operates the valve control components to quickly prevent the danger from occurring. This successfully reduces the safety hazards associated with using haptic devices to demonstrate cylinder injuries, providing a solid guarantee for the safe operation of the equipment.

[0012] According to one embodiment of this application, the first chamber is located on the side of the second chamber away from the output end of the cylinder. The valve control assembly includes a three-position four-way solenoid valve, a first two-position five-way solenoid valve, a second two-position five-way solenoid valve, and a pressure relief valve. The air inlet of the three-position four-way solenoid valve is connected to an air source. The two air outlets of the three-position four-way solenoid valve are respectively connected to the first air inlet of the first two-position five-way solenoid valve and the first air inlet of the second two-position five-way solenoid valve. The air outlet of the first two-position five-way solenoid valve is connected to the first chamber. The air outlet of the second two-position five-way solenoid valve is connected to the second chamber. The second air inlet of the first two-position five-way solenoid valve is connected to the pressure relief valve. The second air inlet of the second two-position five-way valve is open to the atmosphere. The three-position four-way solenoid valve, the first two-position five-way solenoid valve, and the second two-position five-way solenoid valve are all electrically connected to the controller.

[0013] When the three-position four-way solenoid valve is in the isolation position, the gas source is disconnected from the first and second chambers;

[0014] When the first and second position five-way solenoid valves are in the first connected position and the third position four-way solenoid valve is in the first connected position, the air source is connected to the first chamber.

[0015] When the second two-position five-way solenoid valve is in the first connected position and the third three-position four-way solenoid valve is in the second connected position, the air source is connected to the second chamber.

[0016] When the first and second position five-way solenoid valve is in the second connected position, the first chamber is connected to the pressure relief valve, and the third position four-way solenoid valve is disconnected from the first chamber.

[0017] When the second two-position five-way solenoid valve is in the second connected position, the second chamber is connected to the atmosphere, and the third three-position four-way solenoid valve is disconnected from the second chamber.

[0018] According to one embodiment of this application, the pneumatic drive unit further includes a pneumatic dual unit, with the air source connected to the air inlet of the pneumatic dual unit and the air outlet of the pneumatic dual unit connected to the air inlet of the valve control assembly.

[0019] According to one embodiment of this application, a displacement sensor is provided on the first clamping plate and the second clamping plate. The displacement sensor is electrically connected to the controller and is used to monitor the relative position of the first clamping plate and the second clamping plate in real time.

[0020] According to one embodiment of this application, the cylinder residual pressure injury sensor also includes an alarm device, and a pressure sensor is provided in the first chamber of the cylinder. Both the pressure sensor and the alarm device are electrically connected to the controller.

[0021] According to one embodiment of this application, the cylinder residual pressure injury sensory device further includes an aerosol generating device. The aerosol generating device includes an ultrasonic atomizer, a high-speed solenoid valve, a dyeing solution storage tank, and an airflow guiding device. The dyeing solution storage tank is connected to the inlet of the high-speed solenoid valve via a pipeline. The outlet of the high-speed solenoid valve is connected to the inlet of the ultrasonic atomizer. The atomization outlet of the ultrasonic atomizer is connected to the air inlet of the airflow guiding device. The compressed air pipeline is connected to the air inlet of the airflow guiding device. The outlet of the airflow guiding device corresponds to the test section. The controller is electrically connected to the high-speed solenoid valve.

[0022] According to one embodiment of this application, the cylinder residual pressure injury sensor also includes a multi-color LED light source, which is disposed near the mist outlet of the airflow guiding device, and the controller is electrically connected to the multi-color LED light source.

[0023] According to one embodiment of this application, the sensor is an infrared sensor or a laser sensor, and the sensing range of the sensor covers the entire test section.

[0024] According to one embodiment of this application, the output end of the cylinder is connected to the first clamping plate, and the second clamping plate is fixedly installed on the top of the machine body.

[0025] According to one embodiment of this application, a buffer device is provided between the output end of the cylinder and the first clamping plate, the buffer device including a spring and a damper.

[0026] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a schematic diagram of the structure of the cylinder residual pressure injury sensor provided in the embodiments of this application;

[0029] Figure 2 This is a schematic diagram of the air path structure of the air path drive unit provided in the embodiments of this application;

[0030] Figure 3 This is a partial circuit connection diagram of the cylinder residual pressure injury sensor provided in this application embodiment.

[0031] Figure label:

[0032] 100. Cylinder residual pressure injury sensor; 110. Body; 111. Test section; 120. First clamping plate; 130. Second clamping plate; 140. Pneumatic drive unit; 141. Air source; 142. Valve control assembly; 1421. Three-position four-way solenoid valve; 1422. First two-position five-way solenoid valve; 1423. Second two-position five-way solenoid valve; 1424. Pressure relief valve; 143. Cylinder; 1431. First chamber; 1432. Second chamber; 144. Pneumatic dual unit; 150. Test piece; 160. Sensor; 170. Controller; 180. Pressure sensor. Detailed Implementation

[0033] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0034] The following is for reference. Figures 1-3 This application describes a cylinder residual pressure injury sensory device according to an embodiment of the present application.

[0035] Please see Figure 1 and Figure 2 The residual pressure injury sensor for cylinder 143 provided in this application embodiment includes a body 110, a first clamping plate 120, a second clamping plate 130, an air circuit drive unit 140, a test piece 150, a sensor 160, and a controller 170.

[0036] The top of the body 110 is provided with a test section 111.

[0037] The body 110 is constructed from high-strength metal. The test section 111 can be a test platform located on top of the body 110, or a special area on top of the body 110. For example, the top of the body 110 is precisely measured and machined to reserve an installation area suitable for the test section 111. The test section 111 is securely fixed to the top of the body 110 by welding or using high-strength bolts, ensuring that the surface of the test section 111 is flat after installation, without shaking or tilting, providing a stable foundation for placing the test piece 150.

[0038] The first clamping plate 120 and the second clamping plate 130 are located on the top of the body 110 and are positioned opposite each other on both sides of the test section 111.

[0039] On the top of the body 110, a first clamping plate 120 and a second clamping plate 130 are symmetrically installed on both sides of the test section 111. The clamping plates can be made of lightweight and strong alloy materials to reduce the overall weight while meeting the strength requirements.

[0040] In some examples, a high-precision slide rail can be set on the top surface of the body 110. The first clamping plate 120 and the second clamping plate 130 can be connected to the slide rail through a slider to ensure that the clamping plates can smoothly move closer or further away from each other along the slide rail, accurately simulate the clamping action, and ensure its straightness and parallelism to prevent jamming, offset or other situations when the clamping plates move.

[0041] The pneumatic drive unit 140 includes an air source 141, a valve control assembly 142, and a cylinder 143. The air source 141 is connected to the first chamber 1431 and the second chamber 1432 of the cylinder 143 through the valve control assembly 142. The output end of the cylinder 143 is poweredly coupled to one of the first clamping plate 120 and the second clamping plate 130 to drive the first clamping plate 120 and the second clamping plate 130 to move in a direction that moves closer to or further away from each other.

[0042] The air source 141 uses an air pump with compatible power and pressure output. A dedicated mounting base is designed at the bottom of the unit 110, and the air pump is secured to the base with bolts. To reduce the impact of vibration generated during air pump operation on the unit 110, a shock-absorbing rubber pad is installed between the air pump and the base. The air pump output port is connected to the air inlet of the valve control component 142 through a sealed pipe to ensure leak-free gas transmission.

[0043] The valve control assembly 142 integrates various valves and is installed inside the body 110. The air source 141 is connected to the air inlet of the valve control assembly 142, and the valve control assembly 142 is connected to the first chamber 1431 and the second chamber 1432 of the cylinder 143 through different air outlets. During the connection process, pipe fittings with good sealing performance are selected, and sealing tape or sealant is wrapped around the interface to ensure the airtightness of the air circuit system. The cylinder body of the cylinder 143 is fixed to the body 110 by a custom mounting base. A shock-absorbing buffer layer is set between the mounting base and the cylinder body to further reduce the vibration generated during cylinder operation. The output end of the cylinder 143 is dynamically coupled to the first clamping plate 120 or the second clamping plate 130 through a connecting structure, ensuring that the action of the cylinder 143 can be stably and efficiently transmitted to the clamping plate, driving the first clamping plate 120 or the second clamping plate 130 to move.

[0044] Test piece 150 is placed in test section 111; sensor 160 is provided on body 110, sensor 160 is used to detect objects on test section 111 other than test piece 150; controller 170 is electrically connected to sensor 160 and valve control assembly 142, controller 170 is used to control valve control assembly 142 to work according to the sensing result of sensor 160.

[0045] Test piece 150 can be a plastic hand or a wooden block, etc., to allow for a direct visual experience of the damage caused when the residual pressure of cylinder 143 is released. Test piece 150 can be a consumable part made of low-cost materials; or it can be made into a soft part, allowing for repeated use while experiencing the destructive effects, thus reducing teaching costs.

[0046] A suitable sensor 160 is selected, and a suitable sensing bracket is customized according to the actual size and shape of the test section 111. The sensor 160 is mounted on the sensing bracket, and the angle of the bracket is adjusted so that the sensing area of ​​the sensor 160 fully covers the test section 111, ensuring accurate detection of any object on the test section 111 except for the test piece 150. The sensor 160 is connected to the controller 170 through a shielded wire to prevent external electromagnetic interference and ensure accurate transmission of the sensing signal.

[0047] The controller 170 is a reliable model and is installed in a specially designed electrical control area inside the body 110. For example, a control box can be provided on the side of the body 110, and the controller 170 is installed in the control box. The controller 170 establishes electrical connections with the sensor 160 and the valve control assembly 142 through wires, ensuring that the controller 170 can receive the signals fed back by the sensor 160 in real time and accurately control the working state of the valve control assembly 142 according to the preset control logic, thereby realizing effective regulation of the pneumatic drive unit 140.

[0048] In actual execution, during the initial preparation phase, the air pump is started to operate and output a stable amount of compressed air. All connections in the air pipeline are carefully inspected to ensure tightness and absence of looseness or leaks; simultaneously, it is confirmed that all valves in the valve control assembly 142 are initially closed. The test piece 150 is carefully placed on the test section 111, and its position is adjusted to meet the design requirements of the simulation test, ensuring stable placement and preventing displacement or tipping during the test. The controller 170 is powered on and initialized. The sensor 160 is calibrated, and its ability to accurately sense the conditions in the test section 111 is verified through test signals and other methods.

[0049] Under normal use, the operator inputs commands through the controller 170 to set the operating mode of the cylinder 143. According to the commands, the controller 170 controls the valves in the valve control assembly 142 to operate, causing compressed air from the air source 141 to enter either the first chamber 1431 or the second chamber 1432 of the cylinder 143 along a predetermined path. Under air pressure, the output end of the cylinder 143 drives the connected clamping plate to move closer to or away from the other clamping plate along the slide rail, simulating the pinching injury scenario caused by residual cylinder pressure leading to abnormal equipment operation. During this process, the test piece 150, moving with the clamping plate, demonstrates the simulated effect of residual cylinder pressure injury, such as being squeezed and deformed by the clamping plate, allowing the user to intuitively experience the dangers of residual cylinder pressure. The sensor 160 continuously monitors the status of the test section 111 in real time. However, under normal use, no object other than the test piece 150 will be detected entering the sensing area of ​​the test section 111; therefore, the sensor 160 does not generate abnormal signals, and the equipment continues to operate according to the predetermined simulation process.

[0050] During the simulation, once sensor 160 detects an object other than test piece 150 entering the sensing area of ​​test section 111, sensor 160 immediately generates an electrical signal and rapidly transmits it to controller 170. Upon receiving the signal from sensor 160, controller 170 immediately issues control commands to valve control component 142 according to the preset control program. Valve control component 142 responds to the commands, rapidly adjusts the valve state, cuts off the connection between air source 141 and cylinder 143, and stops cylinder 143 from operating, thereby preventing potential dangers and ensuring the safety of equipment and surrounding personnel. Simultaneously, controller 170 can trigger relevant alarm devices, such as audible and visual alarms, to alert operators of any abnormalities.

[0051] According to the cylinder 143 residual pressure injury haptic device of this application, the first clamping plate 120 and the second clamping plate 130 on both sides of the test section 111 on the top of the machine body 110, under the coordinated operation of the air circuit drive unit 140, realize the clamping injury scenario when the cylinder residual pressure causes abnormal equipment operation. Employees can intuitively feel the effect, which greatly improves participation and learning interest, and effectively solves the problems of traditional training lacking hands-on practice and interaction and poor knowledge absorption. The sensor 160 equipped with the device can monitor the test section 111 from all directions and accurately identify abnormal objects. Once an abnormality is detected, a signal is quickly fed back to the controller 170, and the controller 170 then accurately controls the valve control component 142 to quickly prevent the danger from occurring. This successfully reduces the safety hazards existing when using haptic devices to demonstrate cylinder injuries and provides a solid guarantee for the safe operation of the equipment.

[0052] Please see Figure 1 and Figure 2According to some embodiments of this application, the first chamber 1431 is located on the side of the second chamber 1432 away from the output end of the cylinder 143. The valve control assembly 142 includes a three-position four-way solenoid valve 1421, a first two-position five-way solenoid valve 1422, a second two-position five-way solenoid valve 1423, and a pressure relief valve 1424. The air inlet of the three-position four-way solenoid valve 1421 is connected to the air source 141, and the two air outlets of the three-position four-way solenoid valve 1421 are respectively connected to the first air inlet and the second two-position five-way solenoid valve 1423. The first air inlet of the solenoid valve 1423 is connected to the first chamber 1431, the air outlet of the first two-position five-way solenoid valve 1422 is connected to the second chamber 1432, the second air inlet of the first two-position five-way solenoid valve 1422 is connected to the pressure relief valve 1424, and the second air inlet of the second two-position five-way valve is connected to the atmosphere. The three-position four-way solenoid valve 1421, the first two-position five-way solenoid valve 1422, and the second two-position five-way solenoid valve 1423 are all electrically connected to the controller 170.

[0053] A custom valve mounting plate is securely installed at an appropriate position inside the body 110 near the air source 141, the three-position four-way solenoid valve 1421, and the air passage of the cylinder 143. The mounting plate is tightly connected to the frame of the body 110 by high-strength bolts, providing a solid and stable support for subsequent valve installation.

[0054] A three-position four-way solenoid valve 1421, adapted to the working pressure and flow rate of the gas circuit, is selected and mounted on the mounting plate. Its inlet is connected to the output end of the gas source 141 via a sealed pipe. A sealing pipe fitting is used at the connection point, and sealing tape and sealant are applied. The pipe fitting nut is tightened with a wrench to ensure a tight gas circuit and prevent gas leakage. The two outlets of the three-position four-way solenoid valve 1421 are connected to the first inlet of the first two-position five-way solenoid valve 1422 and the first inlet of the second two-position five-way solenoid valve 1423 via independent sealed pipes. All connections strictly adhere to sealing and securing standards.

[0055] Next, install the first and second position five-way solenoid valve 1422. Its outlet is connected to the first chamber 1431 of the cylinder 143 through a sealed pipe to ensure a tight and leak-free connection. The second inlet of the first and second position five-way solenoid valve 1422 is connected to the pressure relief valve 1424 through a sealed pipe. The pressure relief valve 1424 is installed in a position close to the first and second position five-way solenoid valve 1422 and convenient for daily maintenance.

[0056] For the second two-position five-way solenoid valve 1423, its air outlet is connected to the second chamber 1432 of the cylinder 143 through a sealed pipe. The second air inlet of the second two-position five-way solenoid valve 1423 is open to the atmosphere through a pipe. A vent is opened at the corresponding position on the machine body 110 and connected to a pipe to achieve this connection. The interface between the pipe and the solenoid valve is sealed and protected to prevent foreign matter from entering the air circuit and affecting the operation of the equipment.

[0057] The three-position four-way solenoid valve 1421, the first and second-position five-way solenoid valve 1422, and the second and second-position five-way solenoid valve 1423 are all connected to the controller 170 through shielded wires, which effectively prevents signal interference and ensures that the controller 170 can accurately control the working status of each solenoid valve.

[0058] The three-position four-way solenoid valve 1421 has three operating states: isolated position, first connected position, and second connected position. Airflow control in different states is achieved by switching the internal valve core. Specifically, the three-position four-way solenoid valve 1421 has solenoid valves Y1 and Y2 at its two ends, both electrically connected to the controller 170. When the three-position four-way solenoid valve 1421 is in the isolated position, the internal valve core is in the middle position, blocking the connection between the air source 141 and the first chamber 1431 and the second chamber 1432 of the cylinder 143. Neither solenoid valves Y1 nor Y2 are energized. When solenoid valve Y1 is energized, the valve core of the three-position four-way solenoid valve 1421 moves, connecting the air source 141 to the first chamber 1431 while simultaneously blocking the connection between the air source 141 and the second chamber 1432. When solenoid valve Y2 is energized, the valve core of three-position four-way solenoid valve 1421 moves, connecting air source 141 with the second chamber 1432. Air source 141 is connected to the second chamber 1432 of cylinder 143 and disconnected from the first chamber 1431.

[0059] Similarly, the first and second position five-way solenoid valve 1422 has two working states, namely the first connected position and the second connected position. The reset state of the first and second position five-way solenoid valve 1422 is the first connected position. When the solenoid valve Y3 of the first and second position five-way solenoid valve 1422 is energized, the first and second position five-way solenoid valve 1422 switches from the first connected position to the second connected position. When the solenoid valve Y3 is de-energized, the first and second position five-way solenoid valve 1422 resets to the first connected position.

[0060] Similarly, the first two-position five-way solenoid valve 1422 has two working states, namely the first connected position and the second connected position. The reset state of the second two-position five-way solenoid valve 1423 is the first connected position. When the solenoid valve Y4 of the second two-position five-way solenoid valve 1423 is energized, the second two-position five-way solenoid valve 1423 switches from the first connected position to the second connected position. When the solenoid valve Y4 is de-energized, the second two-position five-way solenoid valve 1423 resets to the first connected position.

[0061] With the three-position four-way solenoid valve in the isolation position, the air source 141 is disconnected from the first chamber 1431 and the second chamber 1432. At this time, the equipment is in a safe and stationary state, and the cylinder 143 remains stationary and will not produce any action.

[0062] When the first and second position five-way solenoid valve 1422 is in the first connected position and the third position four-way solenoid valve 1421 is in the first connected position, the air source 141 is connected to the first chamber 1431.

[0063] The operator issues commands through controller 170 to position both the first two-position five-way solenoid valve 1422 and the three-position four-way solenoid valve 1421 in the first connected position. Controller 170 outputs a control signal, energizing solenoid valve Y1. The three-position four-way solenoid valve 1421 opens the corresponding passage, allowing compressed air from air source 141 to enter the first inlet of the first two-position five-way solenoid valve 1422 via the three-position four-way solenoid valve 1421, and then flow from its outlet into the first chamber 1431 of cylinder 143. The compressed air pushes the piston of cylinder 143 towards the second chamber 1432, causing the connected clamping plate to move, simulating the forward motion process during normal cylinder operation.

[0064] When the second two-position five-way solenoid valve 1423 is in the first connected position and the third three-position four-way solenoid valve 1421 is in the second connected position, the air source 141 is connected to the second chamber 1432.

[0065] When the second two-position five-way solenoid valve 1423 is in the first connected position and the three-position four-way solenoid valve 1421 is in the second connected position, solenoid valve Y2 is energized. The three-position four-way solenoid valve 1421 switches the circuit, and the compressed air output from the air source 141 enters the first air inlet of the second two-position five-way solenoid valve 1423 through the three-position four-way solenoid valve 1421, and then flows into the second chamber 1432 of the cylinder 143 from its outlet. The compressed air pushes the piston of the cylinder 143 to move towards the first chamber 1431, realizing the movement in the opposite direction to the air intake of the first chamber 1431, simulating the resetting action of the clamp plate connected to it when the cylinder is working normally.

[0066] When the first and second position five-way solenoid valve 1422 is in the second connected position, the first chamber 1431 is connected to the pressure relief valve 1424, and the third position four-way solenoid valve 1421 is disconnected from the first chamber 1431.

[0067] When the first and second position five-way solenoid valve 1422 switches to the second connected position, solenoid valve Y3 is energized, and the first and second position five-way solenoid valve 1422 connects the first chamber 1431 with the pressure relief valve 1424. At this time, the compressed air in the first chamber 1431 flows to the pressure relief valve 1424 through the first and second position five-way solenoid valve 1422, realizing slow pressure relief and realistically simulating the situation of high pressure residue during the release of residual pressure in the cylinder.

[0068] When the second two-position five-way solenoid valve 1423 is in the second connected position, the second chamber 1432 is connected to the atmosphere, and the three-position four-way solenoid valve 1421 is disconnected from the second chamber 1432.

[0069] When the second 2-position 5-way solenoid valve 1423 is in the second connected position, solenoid valve Y4 is energized, and the second 2-position 5-way solenoid valve 1423 connects the second chamber 1432 to the atmosphere. The compressed air in the second chamber 1432 is quickly discharged to the atmosphere, achieving rapid pressure relief and creating the necessary conditions for the subsequent formation of the pressure difference between the first chamber 1431 and the second chamber 1432.

[0070] During equipment operation, the three-position five-way solenoid valve plays a crucial role in pneumatic circuit control. Operators input different commands through the controller 170, which generates corresponding control signals and sends them to the three-position five-way solenoid valve. Simultaneously, the three-position five-way solenoid valve works in conjunction with the equipment's sensor 160 and controller 170. When the sensor 160 detects an abnormality in the test section 111 (such as an object other than the test piece 150 entering), the controller 170 responds quickly, sending a control signal to switch the three-position five-way solenoid valve to the isolation position, immediately cutting off the connection between the air source 141 and the cylinder 143, stopping the movement of the cylinder 143 and the clamping plate, thus ensuring the safety of the equipment and personnel.

[0071] Please see Figure 2 and Figure 3 In some examples, the controller 170 may include control circuitry, which includes a power supply, a power conversion device, switches SB1, SB2, and SA1. The power conversion device converts 220VAC power to 24VDC power. The control circuitry is arranged according to... Figure 3 As shown, it is connected to solenoid valves Y1, Y2, Y3, and Y4. Specifically, switch SB1 is connected in series with solenoid valve Y1, switch SB2 is connected in series with solenoid valve Y2, and solenoid valves Y3 and Y4 are connected in parallel and then connected in series with switch SA1. The three series circuits are connected in parallel between the positive and negative terminals of the 24VDC power supply.

[0072] During normal operation, pressing switch SB1 energizes solenoid valve Y1, switching the air path to the first chamber 1431 for air intake, and the piston rod extends forward; releasing switch SB1 cuts off the air path, and the piston rod stops moving. Pressing switch SB2 energizes solenoid valve Y2, switching the air path to the second chamber 1432 for air intake, and the piston rod retracts; releasing switch SB2 cuts off the air path, and the piston rod stops moving.

[0073] During the residual pressure test, after the equipment is initially ready, the operator presses switch SB1, energizing solenoid valve Y1 and connecting air source 141 to the first chamber 1431. The piston of cylinder 143 then drives the clamping plate to begin forward movement. During this movement, the operator can release switch SB1 as needed, de-energizing solenoid valve Y1 and resetting the three-position four-way solenoid valve 1421 to the isolation position. Cylinder 143 stops moving, and the piston rod stops at the middle position, preparing for the residual pressure release mode. The operator then operates switch SA1, simultaneously energizing solenoid valves Y3 and Y4. At this point, the equipment officially enters the residual pressure release mode, and all components begin to work collaboratively, simulating the cylinder residual pressure release scenario. After being energized, the first two-position five-way solenoid valve 1422 switches to the second connected position, and the first chamber 1431 is connected to the pressure relief valve 1424. The residual gas in the first chamber 1431 is slowly released through the pressure relief valve 1424, which highly simulates the high-pressure residual state when the cylinder is not completely depressurized, allowing the user to intuitively feel the residual pressure. After the second two-position five-way solenoid valve 1423 is energized, it switches to the second connected position, and the second chamber 1432 is connected to the atmosphere. The residual gas in the second chamber 1432 is directly discharged to the atmosphere, achieving rapid pressure relief and creating a significant pressure difference with the first chamber 1431.

[0074] As the first chamber 1431 slowly depressurizes and the second chamber 1432 rapidly depressurizes, a pressure difference is created between the two chambers. This pressure difference drives the piston rod to suddenly extend forward, causing the piston rod to collide with the connected drive end, impacting the test component (such as a wooden board or a prosthetic hand) placed in the test section 111, resulting in damage to the test section 111. This process accurately simulates the impact and crushing accidents caused by unreleased cylinder pressure, providing operators with intuitive and profound tactile training, enabling them to deeply understand the serious hazards caused by residual cylinder pressure.

[0075] Please see Figure 1 and Figure 2 According to some embodiments of this application, the pneumatic drive unit 140 may further include a pneumatic dual unit 144, the air source 141 may be connected to the air inlet of the pneumatic dual unit 144, and the air outlet of the pneumatic dual unit 144 may be connected to the air inlet of the valve control assembly 142.

[0076] The pneumatic dual unit 144 mainly includes a filter and a pressure reducing valve. Its function is to purify and regulate the pressure of the compressed air output from the air source 141, ensuring that the gas entering the valve control component 142 and cylinder 143 is pure and has stable pressure, thereby ensuring stable operation of the equipment. A dedicated mounting bracket for the pneumatic dual unit 144 is installed inside the machine body 110 at a suitable position near the output port of the air source 141 and the air inlet of the valve control component 142. This bracket is firmly fixed to the frame of the machine body 110 with bolts to ensure its stability. The pneumatic dual unit 144 is mounted on the bracket, and its air inlet is connected to the output pipe of the air source 141 through a sealed pipe joint.

[0077] When the equipment starts up, the compressed air output from the air source 141 first enters the pneumatic dual unit 144. As the compressed air passes through the filter, impurities, dust, and other particles in the air are intercepted and filtered by the filter element. The purified air then enters the pressure reducing valve. The operator can adjust the air pressure to a suitable value by adjusting the adjusting knob on the pressure reducing valve according to the working requirements of the cylinder 143. For example, if the cylinder 143 requires a stable pressure of 0.5 MPa, the adjusting knob can be slowly rotated, and the pressure display on the pressure reducing valve can be observed until the pressure value stabilizes at 0.5 MPa.

[0078] Please see Figure 1 and Figure 2 According to some embodiments of this application, displacement sensors are provided on the first clamping plate 120 and the second clamping plate 130. The displacement sensors are electrically connected to the controller 170 and are used to monitor the relative positions of the first clamping plate 120 and the second clamping plate 130 in real time.

[0079] The displacement sensor can be a magnetostrictive displacement sensor or a laser displacement sensor. For magnetostrictive displacement sensors, a mounting groove is cut at a suitable location on the side of the clamping plate. The size of the mounting groove is adapted to the shape of the sensor. The sensor is embedded in the mounting groove and secured firmly with bolts or strong adhesive to ensure that the sensor does not loosen during the movement of the clamping plate. For laser displacement sensors, a specially designed sensor bracket is installed on the top or side of the clamping plate. The bracket is fixed to the clamping plate by welding or bolting. The angle of the bracket is adjusted so that the emitting end of the laser displacement sensor can be accurately aligned with the corresponding clamping plate, thereby achieving precise monitoring of the relative position of the clamping plates.

[0080] During equipment operation, the displacement sensor operates in real time. After receiving the signal from the displacement sensor, the controller 170 analyzes and processes the data. During normal simulation of cylinder residual pressure injury, the controller 170 can determine whether the clamping plate movement is normal based on a preset displacement range. For example, if the preset minimum distance that the first clamping plate 120 and the second clamping plate 130 should reach during clamping is 5 mm, when the distance data fed back by the displacement sensor approaches or reaches this value, the controller 170 can control the cylinder 143 to stop operating, preventing over-clamping from damaging the test piece 150 or the equipment. The displacement sensor data also plays a crucial role in the residual pressure test operation. For instance, during the simulation of residual pressure release causing the piston rod to suddenly extend, the controller 170 can monitor the clamping plate displacement rate and final position in real time through the displacement sensor, assessing whether the residual pressure release simulation effect meets expectations, and providing operators with more accurate tactile training feedback.

[0081] Please see Figure 1 and Figure 2According to some embodiments of this application, the residual pressure injury sensor device of cylinder 143 may also include an alarm device. The first chamber 1431 of cylinder 143 is provided with a pressure sensor 180. Both the pressure sensor 180 and the alarm device are electrically connected to the controller 170.

[0082] Select an audible and visual alarm device, such as a combination alarm with a high-brightness LED light and a high-decibel buzzer, to ensure that it can effectively attract the operator's attention in various environments. For the pressure sensor 180, select a pressure sensor 180 that is suitable for the air pressure measurement range, has high accuracy, and good stability, such as a capacitive pressure sensor 180.

[0083] In the first chamber 1431, near the gas inlet, a mounting hole adapted to the mounting thread of the pressure sensor 180 is made. The pressure sensor 180 is screwed into the mounting hole, and sealant is used to ensure a good seal at the connection to prevent gas leakage from affecting the accuracy of pressure measurement. An audible and visual alarm device is installed on the top of the equipment body 110 or in a conspicuous location easily visible and audible to the operator. The alarm device is secured to the body 110 with bolts or strong adhesive, ensuring it does not shake or fall during equipment operation.

[0084] During equipment operation, pressure sensor 180 monitors pressure changes in the first chamber 1431 of cylinder 143 in real time. Pressure sensor 180 converts the sensed pressure signal into an electrical signal and transmits it to controller 170 via cable. Controller 170 has a preset pressure threshold, which is determined based on the pressure range of the first chamber 1431 during normal equipment operation.

[0085] When the pressure in the first chamber 1431 exceeds or falls below a preset threshold, the controller 170 immediately receives an abnormal signal from the pressure sensor 180. After analyzing and judging the signal, the controller 170 quickly sends an alarm control signal to the audible and visual alarm device. Upon receiving the signal, the high-brightness LED light of the audible and visual alarm device begins to flash, and a high-decibel buzzer sounds an alarm, reminding the operator that the pressure in the first chamber 1431 is abnormal. For example, in the residual pressure test operation, if the pressure in the first chamber 1431 does not decrease slowly as expected during the depressurization process, but instead experiences a sudden pressure change or abnormal increase, the pressure sensor 180 detects this situation and triggers the alarm device through the controller 170 to promptly notify the operator so that appropriate measures can be taken to avoid equipment damage or test deviations. This also more realistically simulates abnormal cylinder residual pressure conditions, enhancing the effectiveness of tactile training.

[0086] According to some embodiments of this application, the residual pressure injury sensory device of cylinder 143 may further include an aerosol generating device. The aerosol generating device may include an ultrasonic atomizer, a high-speed solenoid valve, a dyeing solution storage tank, and an airflow guiding device. The dyeing solution storage tank is connected to the inlet of the high-speed solenoid valve through a pipeline. The outlet of the high-speed solenoid valve is connected to the inlet of the ultrasonic atomizer. The atomization outlet of the ultrasonic atomizer is connected to the air inlet of the airflow guiding device. The compressed air pipeline is connected to the air inlet of the airflow guiding device. The air outlet of the airflow guiding device corresponds to the test section 111. The controller 170 is electrically connected to the high-speed solenoid valve.

[0087] For ultrasonic atomizers, models with high atomization efficiency, uniform particle size, and suitability for the characteristics of the dyeing solution should be selected. Their power and atomization volume must meet the equipment's requirements for aerosol concentration and coverage, capable of converting the dyeing solution into micron-sized particles. High-speed solenoid valves should have rapid response characteristics to ensure precise control of the dyeing solution delivery. The dyeing solution storage tank should be a corrosion-resistant container of appropriate volume based on the equipment's usage frequency and the required dyeing solution volume. The airflow guiding device should be designed to effectively guide the mixing of compressed air and the atomized dyeing solution, and accurately guide the aerosol to the structure of the test section 111, for example, using a combination of pipes and nozzles with specific angles and guide channels.

[0088] Secure the dye solution storage tank in a suitable location inside the main body 110, ensuring stable installation and easy access for adding dye solution. Connect the outlet of the dye solution storage tank to the inlet of the high-speed solenoid valve using a corrosion-resistant pipe. Use a sealed pipe fitting at the connection point and apply sealant to prevent dye solution leakage. Install the high-speed solenoid valve near the dye solution storage tank in a location convenient for electrical connection, and bolt it to the frame of the main body 110. Connect the outlet of the high-speed solenoid valve to the inlet of the ultrasonic atomizer using a dedicated pipe, again ensuring a tight connection.

[0089] The ultrasonic atomizer is installed in a stable position near the air inlet of the airflow guide device. It can be fixed with a shock-absorbing bracket to reduce the impact of vibration during operation. Connect the atomization outlet of the ultrasonic atomizer to the air inlet of the airflow guide device to ensure that the atomized dyeing solution can smoothly enter the airflow guide device. At the same time, connect the compressed air pipeline to the air inlet of the airflow guide device. The compressed air pressure is controlled between 0.2-0.5MPa to ensure that it can be fully mixed with the atomized dyeing solution and guided to the test section 111. The air outlet of the airflow guide device must be precisely aligned with the test section 111. For target areas such as the prosthetic hand pinch point, the angle and position can be adjusted using an adjustable bracket to ensure that the aerosol can evenly cover the test section 111 area.

[0090] During equipment operation, pressure sensor 180 monitors the pressure of cylinder 143 in real time. When abnormal cylinder pressure is detected, such as residual pressure release or piston impact, pressure sensor 180 transmits an abnormal signal to controller 170. Upon receiving the signal, controller 170 quickly sends an opening command to high-speed solenoid valve. The high-speed solenoid valve responds rapidly and opens, allowing the dyeing solution to flow from the storage tank into the ultrasonic atomizer via a pipeline. The ultrasonic atomizer atomizes the dyeing solution into micron-sized particles. At this time, compressed air at a pressure of 0.2-0.5 MPa enters from the air inlet of the airflow guide device, mixing thoroughly with the atomized dyeing solution particles within the airflow guide device to form a dyeing mist. Driven by the compressed air, the dyeing mist is directionally sprayed through the air outlet of the airflow guide device to the target area, such as the point of injury from a prosthetic hand pinch, providing trainees with immediate visual feedback and simulating the location and severity of actual injuries.

[0091] The primary function of this aerosol dyeing system is to provide trainees with immediate visual feedback, simulating the location and severity of actual injuries. During training, when residual cylinder pressure leads to impacts or other situations, the system sprays colored aerosol to mark the impact point, allowing trainees to visually identify the danger zone. The system also features flexible teaching adaptation, supporting training at all stages, from basic understanding to high-risk scenarios. For the consequences of operating without depressurization, multi-dimensional sensory feedback, such as abnormal cylinder movements and warnings from the spraying of dye mist, enhances the training effect, allowing trainees to more deeply understand the hazards posed by residual cylinder pressure.

[0092] According to some embodiments of this application, the residual pressure injury sensory device for cylinder 143 may also include a multi-color LED light source, which is disposed near the mist outlet of the airflow guide device, and the controller 170 is electrically connected to the multi-color LED light source.

[0093] Multi-color LED light sources should possess high brightness, high color saturation, and the ability to quickly switch colors to meet the visual warning needs of different scenarios. Choose LED modules that offer multiple color outputs (such as red, green, blue, and yellow) and can achieve color mixing.

[0094] During equipment operation, when abnormal cylinder pressure is detected, the high-speed solenoid valve opens and the dyeing mist is sprayed out from the mist outlet of the airflow guide device. The controller 170 not only controls the LED light source to switch the corresponding spectrum and flash according to the color of the dyeing liquid, but also controls the multi-color LED light source to work at the same time.

[0095] The controller 170 sends corresponding control signals to the multi-color LED light source based on different abnormal situations or simulated scenarios, causing it to display different colors. For example, when simulating a minor cylinder residual pressure abnormality, the multi-color LED light source displays yellow light, illuminating the dyed fog and attracting the trainees' initial attention; when simulating more serious dangerous scenarios such as residual pressure release or piston impact, the multi-color LED light source displays red light, and flashes synchronously with the previous LED light source, providing a strong visual warning to the trainees. The combination of the multi-color LED light source and the dyed fog further enhances the realism and visual impact of the simulated scenarios, allowing trainees to more intuitively perceive different levels of danger.

[0096] Please see Figure 1 and Figure 2 According to some embodiments of this application, the sensor 160 can be an infrared sensor 160 or a laser sensor 160, and the sensing range of the sensor 160 covers the entire test section 111.

[0097] If cost-effectiveness is a priority and environmental adaptability is a requirement, the Infrared Sensor 160 can be selected. The Infrared Sensor 160 is relatively inexpensive, can work stably under various lighting conditions, and has a certain resistance to interference from common dust, smoke, etc.

[0098] If higher detection accuracy and a longer sensing distance are required, the laser sensor 160 is a better choice. The laser sensor 160 can accurately detect the position and movement of objects, and its sensing range and accuracy are less affected by environmental factors, which can meet the needs of more precise monitoring of the test section 111.

[0099] To ensure that the sensing range of sensor 160 covers the entire test section 111, the installation location needs to be planned reasonably. A suitable mounting point should be selected on the body 110, ensuring that the field of view of sensor 160 is unobstructed and can fully cover all areas of the test section 111.

[0100] If infrared sensor 160 is selected, it can be installed at a suitable height above or to the side of the test section 111. Use a dedicated mounting bracket to fix the infrared sensor 160 to the body 110, and adjust the angle of the sensor 160 so that the emitted infrared beam can evenly cover the test section 111. By fine-tuning the installation angle and position, ensure that the infrared sensor 160 can detect any object entering the test section 111 in a timely manner.

[0101] The laser sensor 160 is also fixed using a mounting bracket. Based on the characteristics of the laser sensor 160, it can be installed in a suitable position around the test section 111 so that its emitted laser beam can scan the entire test section 111. During installation, care should be taken to avoid obstructing the laser beam by other components to ensure that the laser sensor 160 can accurately detect the presence and movement of objects within the test section 111.

[0102] Please see Figure 1 and Figure 2 According to some embodiments of this application, the output end of the cylinder 143 is connected to the first clamping plate 120, and the second clamping plate 130 is fixedly installed on the top of the machine body 110.

[0103] The second clamping plate 130 is fixedly installed on the top of the machine body 110, providing a relatively fixed target for the movement of the first clamping plate 120. This makes the squeezing and impact effects between the clamping plates more obvious and realistic, allowing operators to more intuitively feel the actual situation of cylinder residual pressure damage and enhancing the effect of tactile training.

[0104] According to some embodiments of this application, a buffer device is provided between the output end of the cylinder 143 and the first clamping plate 120, the buffer device including a spring and a damper.

[0105] The damper can be a hydraulic damper or an air damper, etc., and a buffer device is installed between the output end of the cylinder 143 and the first clamping plate 120. First, suitable mounting seats are machined on the output end (piston rod end) of the cylinder 143 and the first clamping plate 120 respectively. The size and shape of the mounting seats should match the installation requirements of the spring and the damper.

[0106] Install the spring between the mounting brackets, ensuring that the centerline of the spring coincides with the centerline of the piston rod of cylinder 143 to guarantee even force distribution on the spring. When installing the spring, appropriate tools can be used to compress it to ensure proper placement.

[0107] During equipment operation, when the piston rod of cylinder 143 drives the first clamping plate 120 to move, the buffer device plays a role in buffering and shock absorption. When the piston rod pushes the first clamping plate 120 to move rapidly towards the second clamping plate 130, the spring is first compressed, absorbing part of the impact force. At the same time, the damper starts to work, generating damping force through the flow of internal damping medium (such as hydraulic oil or air), consuming energy, and gradually slowing down the movement speed of the first clamping plate 120, thus avoiding damage to the equipment and test components due to excessive impact force.

[0108] For example, in the case of a piston rod suddenly extending forward due to the release of residual pressure in a simulated cylinder, the buffer device can effectively slow down the movement speed of the first clamping plate 120, reduce the impact force between the first clamping plate 120 and the second clamping plate 130, extend the service life of the equipment, and at the same time allow operators to experience the simulated scenario more safely.

[0109] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0110] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0111] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0112] In the description of this application, "multiple" means two or more.

[0113] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0114] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0115] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for sensing cylinder residual pressure injury, characterized in that, include: The machine body, with a test section located on its top; The first clamping plate and the second clamping plate are located on the top of the machine body and are positioned opposite each other on both sides of the test section; The pneumatic drive unit includes an air source, a valve control assembly, and a cylinder. The air source is connected to a first chamber and a second chamber of the cylinder through the valve control assembly. The output end of the cylinder is power-coupled to one of the first clamping plate and the second clamping plate to drive the first clamping plate and the second clamping plate to move in a direction that moves closer to or further away from each other. The test piece is placed in the test section; A sensor is provided on the body, and the sensor is used to detect objects on the test section other than the test piece; A controller is electrically connected to the sensor and the valve control assembly, and the controller is used to control the operation of the valve control assembly based on the sensing result of the sensor.

2. The cylinder residual pressure injury sensory device according to claim 1, characterized in that, The first chamber is located on the side of the second chamber away from the output end of the cylinder. The valve control assembly includes a three-position four-way solenoid valve, a first two-position five-way solenoid valve, a second two-position five-way solenoid valve, and a pressure relief valve. The air inlet of the three-position four-way solenoid valve is connected to the air source. The two air outlets of the three-position four-way solenoid valve are respectively connected to the first air inlet of the first two-position five-way solenoid valve and the first air inlet of the second two-position five-way solenoid valve. The air outlet of the first two-position five-way solenoid valve is connected to the first chamber. The air outlet of the second two-position five-way solenoid valve is connected to the second chamber. The second air inlet of the first two-position five-way solenoid valve is connected to the pressure relief valve. The second air inlet of the second two-position five-way valve is open to the atmosphere. The three-position four-way solenoid valve, the first two-position five-way solenoid valve, and the second two-position five-way solenoid valve are all electrically connected to the controller. When the three-position four-way solenoid valve is in the isolation position, the gas source is disconnected from the first chamber and the second chamber; When the first and second position five-way solenoid valves are in the first connected position and the third position four-way solenoid valves are in the first connected position, the gas source is connected to the first chamber. When the second two-position five-way solenoid valve is in the first connected position and the third three-position four-way solenoid valve is in the second connected position, the air source is connected to the second chamber. When the first two-position five-way solenoid valve is in the second connected position, the first chamber is connected to the pressure relief valve, and the three-position four-way solenoid valve is disconnected from the first chamber. When the second two-position five-way solenoid valve is in the second connected position, the second chamber is connected to the atmosphere, and the third-position four-way solenoid valve is disconnected from the second chamber.

3. The cylinder residual pressure injury sensory device according to claim 1, characterized in that, The pneumatic drive unit also includes a pneumatic dual unit, the air source is connected to the air inlet of the pneumatic dual unit, and the air outlet of the pneumatic dual unit is connected to the air inlet of the valve control assembly.

4. The cylinder residual pressure injury sensory device according to claim 1, characterized in that, The first clamping plate and the second clamping plate are equipped with displacement sensors, which are electrically connected to the controller. The displacement sensors are used to monitor the relative positions of the first clamping plate and the second clamping plate in real time.

5. The cylinder residual pressure injury sensory device according to claim 1, characterized in that, It also includes an alarm device, and the first chamber of the cylinder is equipped with a pressure sensor. Both the pressure sensor and the alarm device are electrically connected to the controller.

6. The cylinder residual pressure injury sensory device according to any one of claims 1-5, characterized in that, It also includes an aerosol generating device, which comprises an ultrasonic atomizer, a high-speed solenoid valve, a dyeing solution storage tank, and an airflow guiding device. The dyeing solution storage tank is connected to the inlet of the high-speed solenoid valve via a pipe. The outlet of the high-speed solenoid valve is connected to the inlet of the ultrasonic atomizer. The atomization outlet of the ultrasonic atomizer is connected to the air inlet of the airflow guiding device. A compressed air pipe is connected to the air inlet of the airflow guiding device. The outlet of the airflow guiding device corresponds to the test section. The controller is electrically connected to the high-speed solenoid valve.

7. The cylinder residual pressure injury sensory device according to claim 6, characterized in that, It also includes a multi-color LED light source, which is located near the mist outlet of the airflow guiding device, and the controller is electrically connected to the multi-color LED light source.

8. The cylinder residual pressure injury sensory device according to any one of claims 1-5, characterized in that, The sensor is an infrared sensor or a laser sensor, and the sensing range of the sensor covers the entire test section.

9. The cylinder residual pressure injury sensory device according to any one of claims 1-5, characterized in that, The output end of the cylinder is connected to the first clamping plate, and the second clamping plate is fixedly installed on the top of the machine body.

10. The cylinder residual pressure injury sensory device according to claim 9, characterized in that, A buffer device is provided between the output end of the cylinder and the first clamping plate, and the buffer device includes a spring and a damper.

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