Air pump integrated box for lifting mast

Abstract

The utility model relates to the technical field of lifting mast equipment, in particular to an air pump integration box for a lifting mast, which comprises an air pump, an electromagnetic valve, a pressure switch, an aviation plug, an air pipe quick connector and a box body, the air inlet end of the electromagnetic valve is connected with the output end of the air pump through a first air pipe, the air source output end of the electromagnetic valve is connected with an air pipe connector arranged on the side wall of the box body through a second air pipe, and the aviation plug is arranged on the side wall of the box body and connected with the electromagnetic valve and the air pump. The pressure sensing end of the pressure switch is connected with the main gas path pipeline through the third gas pipe and used for monitoring the gas pressure of the gas path, and the gas pipe quick connector is installed at the joint of the first gas pipe and the second gas pipe. Therefore, the overall stability and reliability of the system are improved, and the equipment failure rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting mast equipment, in particular to an air pump integrated box for the lifting mast. Background Art

[0002] In the field of telescopic mast technology, traditional pneumatic system designs often disperse components such as air pumps, solenoid valves, and pressure monitoring devices in different locations, connected by numerous air pipes. This decentralized layout results in complex air circuits, which not only takes up a significant amount of equipment space but also complicates on-site installation, requiring significant manpower and time to lay, secure, and connect the air pipes. This increases installation cost and difficulty. The dispersed nature of the components and the long, exposed connecting air pipes make the air circuit system highly susceptible to environmental factors. In harsh operating environments, such as those characterized by humidity, dust, and high or low temperatures, air pipes are prone to aging, corrosion, and damage, leading to gas leaks and disrupting system operation. Furthermore, dispersed wiring and components increase the likelihood of mechanical damage (such as collisions and pulling), which can cause electrical failures and reduce the reliability and stability of the entire telescopic mast system. Frequent repairs not only increase maintenance costs but also extend equipment downtime, impacting work efficiency.

[0003] Some improvement schemes attempt to partially integrate the air pump and some related components, but due to the limited degree of integration, they still cannot solve the complexity of the overall system. For example, although the air pump and some valves are integrated together, the connection with other components (such as pressure switches, external air pipe connections, etc.) is still relatively complex, and comprehensive integration and automated control are not achieved. This partial integration design reduces the connection problems between some components to a certain extent, but the performance improvement and maintenance convenience of the entire lifting mast air system are not significant. It cannot meet the growing demand for efficient, stable, and intelligent equipment operation. At this stage, there is a need for an air pump integrated box for lifting masts. Utility Model Content

[0004] In order to solve the problems of low stability and working efficiency caused by complex connection relationships in traditional air circuit systems, the utility model provides an air pump integrated box for a lifting mast.

[0005] In the first aspect, the utility model provides an air pump integrated box for a lifting mast, which adopts the following technical solutions:

[0006] An air pump integrated box for a lifting mast, comprising:

[0007] An air pump, a solenoid valve, a pressure switch, an aviation plug, an air pipe quick connector and a box body. The air pump and the solenoid valve are both installed inside the box body. The air inlet end of the solenoid valve is connected to the output end of the air pump through a first air pipe, and the air source output end of the solenoid valve is connected to the air pipe connector arranged on the side wall of the box body through a second air pipe. The aviation plug is arranged on the side wall of the box body and is connected to the solenoid valve and the air pump respectively. The pressure sensing end of the pressure switch is connected to the air main pipeline through a third air pipe for monitoring the air pressure of the air pipe. The air pipe quick connector is installed at the interface between the first air pipe and the second air pipe.

[0008] Furthermore, the aviation plug includes a three-core aviation plug and a six-core aviation plug, and the internal core wire of the three-core aviation plug is connected to the power wire of the air pump to provide power for the air pump.

[0009] Furthermore, the solenoid valve includes an air inlet valve and an air exhaust valve, which are used to control the on-off of the air path and the direction of gas flow.

[0010] Furthermore, two core wires of the six-core aviation plug are connected to the intake valve control coil, the other two core wires of the six-core aviation plug are connected to the exhaust valve control coil, and the last two core wires of the six-core aviation plug are connected to the limit switch arranged at the top of the lifting tower for transmitting control signals and limit signals.

[0011] Furthermore, the connection between the six-core aviation plug and the solenoid valve control line and the limit switch adopts a twisted shielded wire, the six-core aviation plug and the solenoid valve control coil are connected by welding, and the six-core aviation plug and the limit switch are connected by a screw terminal.

[0012] Furthermore, the three-core aviation plug is connected to the air pump power cord plug in a plug-in manner, and an anti-misinsertion structure is adopted inside the three-core aviation plug.

[0013] Furthermore, the trachea quick connector is a plug-in structure, and the male and female ends of the trachea quick connector cooperate with the elastic retaining spring through an annular groove.

[0014] Furthermore, the outside of the box is connected to a three-way joint, one path of the three-way joint is connected to the air inlet at the bottom of the lifting rod through the fourth air pipe, and the other path of the three-way joint is connected to the pressure gauge through the fifth air pipe for distributing gas, and the last path of the three-way joint is connected to the safety pressure relief valve outside the box.

[0015] Furthermore, the fifth air pipe is connected to the pressure gauge via a metal ferrule joint.

[0016] Furthermore, the first air pipe is fastened to the air pump output port and the air inlet end of the solenoid valve by a metal pipe clamp.

[0017] In summary, the present invention has the following beneficial technical effects:

[0018] 1. This utility model integrates key components such as the air pump, solenoid valve, air plug, and air pipe quick connector into the box and rationally plans the layout, which greatly reduces the space occupied by the entire air system. Compared with the traditional decentralized layout, it avoids the lengthy and complicated air pipe and line connections between the various components, making the installation process simpler and faster, greatly shortening the installation time, reducing the installation cost, and improving the overall maintainability and scalability of the equipment.

[0019] 2. The utility model adopts an integrated design to reduce the interference of external factors on the air circuit system. At the same time, the relative positions of various components in the box are fixed, which reduces the looseness of components and poor connections caused by vibration and other reasons, thereby improving the overall stability and reliability of the system, reducing the equipment failure rate, reducing the downtime caused by equipment failure, and improving the working efficiency and service life of the lifting mast.

[0020] 3. The air intake valve and exhaust valve of the solenoid valve of the utility model are connected to the control system through a six-core aviation plug, which can accurately control the on-off of the air path and the gas flow direction according to the instructions of the control system. The use of twisted shielded wire reduces the influence of electromagnetic interference on the control signal, ensuring the accuracy and stability of the control signal. The welding connection method ensures a reliable electrical connection between the six-core aviation plug and the solenoid valve control coil, so that the air intake valve and the exhaust valve can respond to the instructions of the control system quickly and accurately, and realize precise control of the lifting speed, stop position, etc. of the lifting rod.

[0021] 4. The trachea quick connector of the utility model adopts a plug-in structure. The male and female heads cooperate with the elastic retaining spring through the annular groove to realize the quick plug-in connection of the trachea. This connection method is very convenient and quick during equipment installation, maintenance and trachea replacement. It does not require the use of complicated tools, saving time and labor costs.

[0022] 5. The third way of the three-way joint on the outside of the box of the utility model is connected to the safety pressure relief valve. When the pressure of the gas system is too high due to some reason (such as solenoid valve failure, abnormal operation of the air pump, etc.), the safety pressure relief valve can automatically open and discharge the excess gas into the atmosphere, thereby protecting the air pump, solenoid valve, air pipe and other components in the gas system from damage due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal connections of an air pump integrated box for a lifting mast according to an embodiment of the present utility model.

[0024] Figure 2 The utility model is a schematic diagram of the overall structure of an air pump integrated box for a lifting mast according to an embodiment of the present invention.

[0025] Figure 3The utility model is a bottom structural schematic diagram of an air pump integrated box for a lifting mast according to an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of an air pump connector in an air pump integrated box for a lifting mast according to an embodiment of the utility model.

[0027] Figure 5 The utility model is a flowchart of the operating steps of an air pump integrated box for lifting masts according to an embodiment of the present invention.

[0028] Among them, 1. Air pump; 2. Solenoid valve; 3. Three-core aviation plug; 4. Six-core aviation plug; 5. Air source output hole; 6. Air main pipeline; 7. Side heat dissipation hole; 8. Box handle space; 9. Bottom heat dissipation hole; 10. Air pump connector. DETAILED DESCRIPTION

[0029] The present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] Reference Figure 1 The present embodiment of the present invention provides an air pump integrated box for a lifting mast, comprising:

[0032] An air pump, a solenoid valve, a pressure switch, an aviation plug, an air pipe quick connector and a box body. The air pump and the solenoid valve are both installed inside the box body. The air inlet end of the solenoid valve is connected to the output end of the air pump through a first air pipe, and the air source output end of the solenoid valve is connected to the air pipe connector arranged on the side wall of the box body through a second air pipe. The aviation plug is arranged on the side wall of the box body and is connected to the solenoid valve and the air pump respectively. The pressure sensing end of the pressure switch is connected to the air main pipeline through a third air pipe for monitoring the air pressure of the air pipe. The air pipe quick connector is installed at the interface between the first air pipe and the second air pipe.

[0033] Specifically,

[0034] like Figure 1 、 Figure 4 、 Figure 5As shown, when the equipment needs to run, the external power supply is connected to the power cord of the air pump 1 through the three-core aviation plug 3 to power the air pump 1. The internal core wire of the three-core aviation plug 3 accurately transmits electricity, and its plug-in connection is convenient and fast, and the anti-misplug structure ensures that the power supply is correctly connected to the air pump 1. After the air pump 1 is started, it begins to inhale and compress the outside air to generate compressed air with a certain pressure. The compressed air output by the air pump 1 is transmitted to the air inlet end of the solenoid valve 2 through the first air pipe. The first air pipe adopts a high-pressure resistant rubber tube. Its diameter matches the output port of the air pump 1 and the air inlet end of the solenoid valve 2. It is fastened by a metal pipe clamp to ensure a tight connection and no gas leakage. After tightening the screws of the metal pipe clamp, it tightly clamps the air pipe to prevent the air pipe from loosening or falling off under the action of high-pressure gas, ensuring that the gas can flow stably and efficiently from the air pump 1 to the solenoid valve 2. The bottom of the box is provided with The bottom heat dissipation hole 9, wherein the position and size of the bottom heat dissipation hole 9 are determined according to the layout of the heat-generating components such as the air pump 1 in the box body, and its purpose is to form a three-dimensional heat dissipation channel, accelerate the discharge of hot air, and maintain the temperature in the box body within a reasonable range. The air pump 1 is fixed to the bottom of the box body through the air pump connector 10 at the bottom of the box body. The air pump connector 10 is fixed to the air pump 1 by bolt connection. There is a mounting hole matching the connector at the bottom of the air pump 1. When the air pump 1 is running, various directions of forces will be generated, including gravity in the vertical direction, inertia force generated by vibration in the horizontal direction, etc. The air pump connector 10 transmits these forces to the box body through its rigid structure to avoid excessive local stress.

[0035] Solenoid valve 2 is a key component in the air circuit control, containing both the intake and exhaust valves. When the control system sends a control signal to the intake valve control coil of solenoid valve 2 via six-core aviation plug 4, the two twisted shielded cables connecting the six-core aviation plug 4 to the intake valve control coil accurately transmit the signal. The shielded cables effectively reduce external electromagnetic interference, ensuring signal accuracy. After the signal is transmitted to the intake valve control coil, a secure electrical connection, secured by welding, opens the intake valve. At this point, compressed air flows from the air source output of solenoid valve 2 through a second air pipe to the air pipe connector on the side wall of the box.

[0036] like Figure 2 As shown, the air source output hole 5 is located on the side wall of the box. Its function is to connect the air source output end of the internal solenoid valve 2 with the external air pipe connector, matching the specifications of the second air pipe and the air pipe connector to ensure that the gas can flow smoothly from the inside of the box to the external air path. In addition, the side heat dissipation holes 7 in the box adopt a grid-like design, which can allow hot air to be discharged smoothly and effectively prevent larger particles of dust from entering the inside of the box.

[0037] The connection between the second air pipe, the air source output of solenoid valve 2, and the air pipe connector is sealed with a sealing cone, a copper hose clamp, and a rubber seal inside the air pipe connector, ensuring smooth gas flow. Gas flowing from the air pipe connector on the side of the box passes through an external tee and into the fourth air pipe at the bottom of the lifter. This flexible polyurethane pipe is tightly connected to the lifter's air inlet. Sealant is first applied to the inlet and the end of the pipe, then inserted, tightened, and secured with a pipe clamp to ensure that gas can only enter the lifter. The gas entering the lifter pushes the internal pneumatic actuator (such as a cylinder piston), causing the lifter to ascend. During the ascent, the control system precisely controls the opening of the solenoid valve 2's inlet valve to adjust the gas flow rate to the lifter, thereby precisely controlling the lifter's ascending speed.

[0038] When the mast needs to descend, the control system sends a control signal to the exhaust valve control coil of solenoid valve 2 via six-core aviation plug 4. The other two twisted shielded wires in six-core aviation plug 4, connected to the exhaust valve control coil, stably transmit the signal. After the exhaust valve control coil receives the signal, the exhaust valve opens. At this time, the gas in the mast flows back through the air pipe to solenoid valve 2 and is discharged into the atmosphere through the exhaust valve. The mast descends under the assistance of its own gravity or other external forces. Similarly, by controlling the degree of opening of the exhaust valve, the gas discharge rate can be controlled, and thus the mast's descent speed can be controlled, ensuring a smooth descent.

[0039] After that, the gas is detected. The pressure switch is connected to the main gas pipeline 6 through the third gas pipe. The third gas pipe is made of a material that is sensitive to pressure changes and has good sealing performance. The connection between the third gas pipe and the main gas pipeline 6 is welded or a high-pressure sealing joint, and a rubber sealing ring or sealant is used to ensure the sealing. The pressure switch senses the air pressure changes in the gas circuit in real time. When the air pressure changes, the sensor element inside the pressure switch converts the air pressure signal into an electrical signal. The pressure switch feeds the electrical signal back to the control system. When the gas pressure in the gas circuit is lower than the preset minimum working pressure, the control system receives the signal and controls the air pump 1 to continue working or increase the output power to increase the air pressure in the gas circuit. Conversely, when the air pressure reaches the preset maximum working pressure, the control system controls the air pump 1 to stop working or reduce the output power to prevent the excessive air pressure from damaging the system. Through this feedback control mechanism, the gas circuit system is always kept operating within the appropriate air pressure range, ensuring that the system operates stably and safely.

[0040] like Figure 3As shown, during operation of the gas system, the third leg of the three-way connector on the outside of the box is connected to the safety relief valve. The safety relief valve is set to open at a certain value above the normal operating pressure of the system. If, for some reason (such as a malfunction of solenoid valve 2 preventing normal gas discharge, or abnormal continuous pressurization of air pump 1), the gas pressure exceeds the threshold set by the safety relief valve, the safety relief valve automatically opens and discharges excess gas into the atmosphere. The connection method between the safety relief valve and the gas system (such as threaded connection or welding, selected according to actual conditions) ensures a secure connection and a good seal under the action of high-pressure gas, ensuring normal operation in an emergency. It also protects components of the gas system, such as air pump 1, solenoid valve 2, and air pipe, from damage caused by excessive pressure, preventing serious safety accidents such as equipment explosion or rupture caused by excessive pressure. Finally, a handle space 8 is provided on the surface of the box. By providing a stable grip point, the operator can better control the direction and speed of the box movement.

[0041] The other end of the tee is connected to a pressure gauge via a fifth air pipe, which is used to display the air pressure value of the air system in real time. The fifth air pipe is made of polytetrafluoroethylene tubing, and its inner diameter is selected based on the pressure gauge's accuracy requirements for the air pressure signal to accurately transmit the air pressure signal. It is connected to the pressure gauge via a metal compression fitting. The metal compression fitting is tightened by a nut so that the fitting hugs the outer wall of the air pipe, ensuring a seal and a secure connection, allowing the pressure gauge to accurately obtain and display the air pressure signal. By observing the pressure gauge reading, the operator can intuitively understand the air pressure in the air circuit and determine whether the equipment is operating normally, such as whether the air pressure is stable and whether there are leaks, so that timely measures can be taken, such as adjusting the operating status of air pump 1 and checking the air circuit connections, to ensure the normal operation of the system.

[0042] The three-core aviation plug 3 provides power for the air pump 1. Its plug-in connection with the power cord plug of the air pump 1 facilitates the power connection and disconnection of the air pump 1. The internal anti-misplugging structure avoids misoperation. The aviation plug socket is fixed to the side wall of the box by screws, ensuring the firmness of the installation of the aviation plug, so that the power supply of the air pump 1 is stable and reliable during operation. The six-core aviation plug 4 is not only used to transmit signals for controlling the intake valve and exhaust valve of the solenoid valve 2, but also connected to the limit switch arranged at the top of the lifting tower for transmitting limit signals. The six-core aviation plug 4 is connected to the limit switch through screw terminals to ensure that the limit signal is accurately transmitted to the control system. When the lifting rod rises to the highest height, the limit switch is triggered, and the signal is stably transmitted to the control system through the six-core aviation plug 4. The control system immediately controls the air pump 1 to stop working or take other corresponding protective measures to prevent the lifting rod from excessive rise and damage, thereby ensuring system safety.

[0043] The six-core aviation plug 4 connects to the solenoid valve 2 control line and the limit switch using twisted shielded wire. This twisted structure effectively reduces the impact of electromagnetic interference on the control and limit signals. During signal transmission, the shield layer of the shielded wire is grounded, further improving the signal transmission's anti-interference capability and ensuring that the control system receives accurate signals, thereby achieving precise control of the solenoid valve 2 and the lifting rod. At the same time, the six-core aviation plug 4 is connected to the solenoid valve 2 control coil via welding. The weld joints are strong and conductive, ensuring that the control signal can effectively drive the solenoid valve 2 and achieve precise control of the air circuit.

[0044] The trachea quick connector is installed at the interface of the first trachea and the second trachea. It adopts a plug-in structure. The male and female ends cooperate with the elastic retaining ring through the annular groove to achieve a quick plug-in connection. This connection method is very convenient and quick during equipment installation, maintenance and trachea replacement. It does not require the use of complex tools, which greatly saves time and labor costs. For example, during the equipment assembly process, the operator can quickly connect the trachea to the quick connector, improving installation efficiency. When the trachea needs to be repaired or replaced, just loosen the elastic retaining ring, pull out the old trachea, insert the new trachea, and re-lock it. The operation is simple and easy. The sealing gasket of the trachea quick connector is made of oil-resistant and aging-resistant rubber material. When the male and female ends are connected, the sealing gasket is squeezed and deformed, filling the tiny gap in the connection part to form a reliable seal. Even under the action of gas pressure, it can effectively prevent gas leakage and ensure the sealing and stability of the gas system. It not only ensures the normal operation of the gas system and reduces the problem of insufficient or unstable gas pressure caused by gas leakage, but also helps to improve the overall efficiency of the system and reduce energy consumption. At the same time, it extends the service life of the gas pipe and other components, and reduces equipment failure and maintenance costs caused by leakage.

[0045] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air pump integrated box for a lifting mast, characterized in that: include: An air pump, a solenoid valve, a pressure switch, an aviation plug, an air pipe quick connector and a box body. The air pump and the solenoid valve are both installed inside the box body. The air inlet end of the solenoid valve is connected to the output end of the air pump through a first air pipe, and the air source output end of the solenoid valve is connected to the air pipe connector arranged on the side wall of the box body through a second air pipe. The aviation plug is arranged on the side wall of the box body and is connected to the solenoid valve and the air pump respectively. The pressure sensing end of the pressure switch is connected to the air main pipeline through a third air pipe for monitoring the air pressure of the air pipe. The air pipe quick connector is installed at the interface between the first air pipe and the second air pipe.

2. The air pump integrated box for a lifting mast according to claim 1, characterized in that: The aviation plug includes a three-core aviation plug and a six-core aviation plug. The internal core wire of the three-core aviation plug is connected to the power wire of the air pump to provide power for the air pump.

3. The air pump integrated box for a lifting mast according to claim 2, characterized in that: The solenoid valve includes an air inlet valve and an air exhaust valve, which are used to control the on-off of the air path and the direction of gas flow.

4. The air pump integrated box for a lifting mast according to claim 3, characterized in that: Two core wires of the six-core aviation plug are connected to the intake valve control coil, the other two core wires of the six-core aviation plug are connected to the exhaust valve control coil, and the last two core wires of the six-core aviation plug are connected to the limit switch arranged at the top of the lifting tower for transmitting control signals and limit signals.

5. The air pump integrated box for a lifting mast according to claim 4, characterized in that: The connection between the six-core aviation plug and the solenoid valve control line and the limit switch adopts a twisted shielded wire. The six-core aviation plug is connected to the solenoid valve control coil by welding, and the six-core aviation plug is connected to the limit switch by a screw terminal.

6. The air pump integrated box for a lifting mast according to claim 5, characterized in that: The three-core aviation plug is connected to the air pump power cord plug in a plug-in manner, and an anti-misinsertion structure is adopted inside the three-core aviation plug.

7. The air pump integrated box for a lifting mast according to claim 1, characterized in that: The trachea quick connector is a plug-in structure, and the male and female ends of the trachea quick connector are matched with elastic retaining springs through an annular groove.

8. The air pump integrated box for a lifting mast according to claim 1, characterized in that: The outside of the box is connected to a three-way joint, one path of the three-way joint is connected to the air inlet at the bottom of the lifting rod through the fourth air pipe, and the other path of the three-way joint is connected to the pressure gauge through the fifth air pipe for distributing gas, and the last path of the three-way joint is connected to the safety pressure relief valve outside the box.

9. The air pump integrated box for a lifting mast according to claim 8, characterized in that: The fifth air pipe is connected to the pressure gauge via a metal ferrule joint.

10. The air pump integrated box for a lifting mast according to claim 1, characterized in that: The first air pipe is fastened to the air pump output port and the air inlet end of the solenoid valve through a metal pipe clamp.

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