Pneumatic control power equipment

Abstract

The utility model relates to the technical field of pneumatic control equipment, and provides pneumatic control power equipment which comprises a pneumatic motor, a first air valve, a second air valve, a first air source and a second air source. The pneumatic motor is provided with a first air inlet control port and a second air inlet control port; the first air valve is a two-position five-way valve; the second air valve is a two-position five-way valve; the first air source is communicated with an air source port of the first air valve; the second air source is communicated with an air source port of the second air valve; wherein a first working port of the first air valve is communicated with the first air inlet control port, and a second working port of the first air valve is communicated with the second air inlet control port; the first working port of the second air valve is communicated with the first control port of the first air valve, and the second working port of the second air valve is communicated with the second control port of the first air valve.

Description

Technical Field

[0001] This utility model belongs to the technical field of pneumatic control equipment, and more specifically, it relates to a pneumatic power equipment. Background Technology

[0002] In modern electromechanical equipment, pneumatic motors are frequently used to provide power. A pneumatic motor has a first air inlet control port and a second air inlet control port. Injecting gas into the first air inlet control port causes the pneumatic motor to rotate in one direction, while injecting gas into the second air inlet control port causes it to rotate in the other direction. Users typically control the pneumatic motor's forward and reverse rotation directly through either the first or second air inlet control port. However, as equipment becomes more complex, there is a need for more diverse control methods for pneumatic motors. Simply controlling the pneumatic motor directly through either the first or second air inlet control port is insufficient for implementing complex control systems. Utility Model Content

[0003] The purpose of this utility model is to provide a pneumatically controlled power device to solve the technical problem in the prior art that it is difficult to realize a complex control system by simply controlling the pneumatic motor through the first or second air inlet control port.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a pneumatically controlled power device, comprising:

[0005] A pneumatic motor; the pneumatic motor has a first air intake control port and a second air intake control port.

[0006] The first air valve is a two-position five-way valve.

[0007] The second air valve is a two-position five-way valve.

[0008] First air source; the first air source is connected to the air source port of the first air valve;

[0009] Second air source; the second air source is connected to the air source port of the second air valve;

[0010] Wherein, the first working port of the first air valve is connected to the first air inlet control port, and the second working port of the first air valve is connected to the second air inlet control port; the first working port of the second air valve is connected to the first control port of the first air valve, and the second working port of the second air valve is connected to the second control port of the first air valve.

[0011] Furthermore, the first air valve is a two-position five-way center valve.

[0012] Furthermore, it also includes: a first gas circuit switch; the first gas source is connected to the first control port of the second gas valve through the first gas circuit switch.

[0013] Furthermore, the first pneumatic circuit switch is a pneumatically controlled limit switch.

[0014] Furthermore, it also includes: a first control valve; the first air circuit switch is connected through the first control port of the first control valve and the second air valve; an input port of the first control valve is connected to the first air circuit switch, and the output port of the first control valve is connected to the first control port of the second air valve.

[0015] Furthermore, it also includes: a third air circuit switch; the third air circuit switch is: a pneumatically controlled limit switch; the third air circuit switch is connected to another input port of the first valve.

[0016] Furthermore, it also includes: a second gas circuit switch; the first gas source is connected to the second control port of the second gas valve through the second gas circuit switch.

[0017] Furthermore, the second pneumatic circuit switch is a pneumatically controlled limit switch.

[0018] Furthermore, it also includes: a second inter-valve; the second air circuit switch is connected through the second inter-valve and the second control port of the second air valve; an input port of the second inter-valve is connected to the second air circuit switch, and the output port of the second inter-valve is connected to the second control port of the second air valve.

[0019] Furthermore, it also includes: a fourth air circuit switch; the fourth air circuit switch is: a pneumatically controlled limit switch; the fourth air circuit switch is connected to another input port of the second valve.

[0020] The beneficial effects of the pneumatically controlled power device provided by this utility model are as follows: Compared with the prior art, the pneumatically controlled power device provided by this utility model allows the pneumatic motor to rotate in one direction when gas is injected from the first air inlet control port of the pneumatic motor; and to rotate in another direction when gas is injected from the second air inlet control port of the pneumatic motor. The first working port of the first air valve is connected to the first air inlet control port of the pneumatic motor, and the second working port of the first air valve is connected to the second air inlet control port of the pneumatic motor. The user can control the state of the pneumatic motor by injecting external gas into the first or second control port of the first air valve. The first working port of the second air valve is connected to the first control port of the first air valve, and the second working port of the second air valve is connected to the second control port of the first air valve. The user can control the first air valve through the first or second working port of the second air valve. That is, the user can directly control the pneumatic motor through the first air valve, or indirectly control the pneumatic motor through the second air valve, making the user's control of the pneumatic motor diverse and easy to adapt to complex electromechanical equipment. Attached Figure Description

[0021] Figure 1 A schematic diagram of the principle of the pneumatically controlled power device provided in the embodiment of this utility model;

[0022] Figure 2 A schematic diagram of the interface of the two-position five-way valve provided in an embodiment of this utility model;

[0023] Figure 3 A schematic diagram of the pneumatic motor interface provided for an embodiment of this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 1-Pneumatic motor; 21-First air valve; 22-Second air valve; 31-First air circuit switch; 32-Second air circuit switch; 33-Third air circuit switch; 34-Fourth air circuit switch; 41-First control valve; 42-Second control valve; 51-First air source; 52-Second air source. Detailed Implementation

[0026] It should be noted that the specific embodiments are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that, in the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Here, A and B can be singular or plural, respectively.

[0028] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" or "attached to" another component, it can be directly connected to or indirectly connected to that other component. When a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component.

[0029] It should be noted that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] It should be noted that the term "multiple" means two or more, unless otherwise explicitly specified.

[0032] Please refer to the following: Figures 1 to 3 The pneumatically controlled power device provided by this utility model will now be described. The pneumatically controlled power device includes: a pneumatic motor 1, a first air valve 21, a second air valve 22, a first air source 51, and a second air source 52; the pneumatic motor 1 has a first air inlet control port and a second air inlet control port; the first air valve 21 is a two-position five-way valve; the second air valve 22 is a two-position five-way valve; the first air source 51 is connected to the air source port of the first air valve 21; the second air source 52 is connected to the air source port of the second air valve 22; wherein, the first working port of the first air valve 21 is connected to the first air inlet control port, and the second working port of the first air valve 21 is connected to the second air inlet control port; the first working port of the second air valve 22 is connected to the first control port of the first air valve 21, and the second working port of the second air valve 22 is connected to the second control port of the first air valve 21.

[0033] Thus, when gas is injected from the first air inlet control port of the pneumatic motor 1, the pneumatic motor 1 rotates in one direction; when gas is injected from the second air inlet control port of the pneumatic motor 1, the pneumatic motor 1 rotates in the other direction. The first working port of the first air valve 21 is connected to the first air inlet control port of the pneumatic motor 1, and the second working port of the first air valve 21 is connected to the second air inlet control port of the pneumatic motor 1. The user can control the state of the pneumatic motor 1 by injecting external gas into the first or second control port of the first air valve 21. The first working port of the second air valve 22 is connected to the first control port of the first air valve 21, and the second working port of the second air valve 22 is connected to the second control port of the first air valve 21. The user can control the first air valve 21 through the first or second working port of the second air valve 22. That is, the user can directly control the pneumatic motor 1 through the first air valve 21, or indirectly control the pneumatic motor 1 through the second air valve 22, making the user's control of the pneumatic motor 1 diverse and easy to adapt to complex electromechanical equipment.

[0034] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatic power equipment provided by this utility model, the first air valve 21 is a two-position five-way center valve.

[0035] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a first air circuit switch 31; the first air source 51 is connected to the first control port of the second air valve 22 through the first air circuit switch 31. Thus, the first air circuit switch 31 can be used to open or close the first air source 51 and the first control port of the second air valve 22.

[0036] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power equipment provided by this utility model, the first pneumatic circuit switch 31 is a pneumatically controlled limit switch.

[0037] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a first inter-valve 41; a first air circuit switch 31 connected to the first control port of the first inter-valve 41 and the second air valve 22; an input port of the first inter-valve 41 connected to the first air circuit switch 31, and an output port of the first inter-valve 41 connected to the first control port of the second air valve 22. Thus, other external air circuits can be connected to other input ports of the first inter-valve 41 to control the first control port of the second air valve 22.

[0038] Further, please refer to Figures 1 to 3As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a third pneumatic circuit switch 33; the third pneumatic circuit switch 33 is a pneumatically controlled limit switch; the third pneumatic circuit switch 33 is connected to another input port of the first valve 41. Thus, the third pneumatic circuit switch 33 can be connected to the other input port of the first valve 41 to control the first control port of the second valve 22.

[0039] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a second air circuit switch 32; the first air source 51 is connected to the second control port of the second air valve 22 through the second air circuit switch 32. Thus, the second air circuit switch 32 can be used to open or close the second control port of the first air source 51 and the second air valve 22.

[0040] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power equipment provided by this utility model, the second pneumatic circuit switch 32 is a pneumatically controlled limit switch.

[0041] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a second inter-valve 42; a second air circuit switch 32 connected to the second control port of the second inter-valve 42 and the second air valve 22; an input port of the second inter-valve 42 connected to the second air circuit switch 32, and an output port of the second inter-valve 42 connected to the second control port of the second air valve 22. Thus, other external air circuits can be connected to other input ports of the second inter-valve 42 to control the second control port of the second air valve 22.

[0042] Further, please refer to Figures 1 to 3 As a specific embodiment of the pneumatically controlled power device provided by this utility model, it further includes: a fourth pneumatic circuit switch 34; the fourth pneumatic circuit switch 34 is a pneumatically controlled limit switch; the fourth pneumatic circuit switch 34 is connected to another input port of the second valve 42. Thus, the fourth pneumatic circuit switch 34 can be connected to the other input port of the second valve 42 to control the second control port of the second air valve 22.

[0043] First embodiment:

[0044] In one embodiment, regarding the working principle and control method of the pneumatic motor:

[0045] A pneumatic motor (or air-controlled motor) is a device that uses compressed air as a power source. It is widely used in various industrial applications, especially in flammable, explosive, or electromagnetically sensitive environments. Compared to electric motors, pneumatic motors offer greater safety and adaptability to harsh environments.

[0046] [1] Basic structure of pneumatic motor

[0047] A pneumatic motor typically consists of the following parts:

[0048] Motor body: includes main moving parts such as rotor, blades, and cylinder.

[0049] Air inlet and exhaust outlet: control the entry and exit of compressed air.

[0050] Control valves or interfaces: used to change the direction of airflow and control the start, stop, and direction of the motor.

[0051] [2] Control principle of dual-control pneumatic motor:

[0052] A pneumatic motor with two control ports can be controlled to rotate in both directions by changing the direction of airflow at the intake port. This is typically achieved through an externally controlled 2-position 5-way valve, which determines which control port receives compressed air to drive the motor.

[0053] Forward control:

[0054] Control port 1 (C1) receives compressed air and activates the motor to rotate in one direction (e.g., clockwise).

[0055] Control port 2 (C2) is closed or connected to the exhaust and does not receive airflow.

[0056] Reverse control:

[0057] Control port 2 (C2) receives compressed air and activates the motor to rotate in the opposite direction (e.g., counterclockwise).

[0058] Control port 1 (C1) is closed or connected to the exhaust and does not receive airflow.

[0059] In one embodiment, control port 1 (C1) is the first air intake control port of the pneumatic motor, and control port 2 (C2) is the second air intake control port of the pneumatic motor.

[0060] Second embodiment:

[0061] In one embodiment, regarding a "two-position five-way valve":

[0062] [1] Interface of a two-position five-way valve

[0063] (1) Gas source port (P-Pressure):

[0064] Definition: An air source port is an interface connected to a compressed air source, providing the necessary compressed air for valves and pneumatic systems.

[0065] Function: Primarily supplies compressed air to drive valves and connected pneumatic equipment.

[0066] (2) Control ports (C1, C2): [In one embodiment, C1 is the first control port of the two-position five-way valve, and C2 is the second control port of the two-position five-way valve.]

[0067] Definition: The control port receives air pressure signals from other parts and is used to control the switching of valves.

[0068] Function:

[0069] C1 port: When gas is injected into C1, the valve switches to position 1.

[0070] C2 port: When gas is injected into C2, the valve switches to position 2.

[0071] (3) Working ports (A, B) [In one embodiment, A is the first working port of the two-position five-way valve, and B is the second working port of the two-position five-way valve.]

[0072] Definition: The working port is connected to a cylinder or other pneumatic actuator.

[0073] Function:

[0074] Port A: In one state of the valve, air is supplied to one side of the cylinder.

[0075] Port B: In another state of the valve, air is supplied to the other side of the cylinder.

[0076] (4) Exhaust ports (E1 and E2)

[0077] Definition: The exhaust port is used to release air from the cylinder so that the cylinder can move or stop smoothly.

[0078] Function:

[0079] Port E1: This is the exhaust port, usually connected to port A, used to release air from the cylinder on the port A side when port A is closed.

[0080] Port E2: This is the exhaust port, usually connected to port B, used to release air from the cylinder on the port B side when port B is closed.

[0081] [2] Working principle of a two-position five-way valve

[0082] The 2-position 5-way valve controls the extension and retraction of the cylinder by controlling the airflow from the air source port to the working port and the exhaust from the corresponding working port. Activation of the purely pneumatic control port allows for valve switching without the need for a power source.

[0083] Position 1 (when C1 is activated):

[0084] Airflow path:

[0085] P→A: The air source is sent into port A through port P, and air is supplied to one side of the cylinder, pushing the piston to move in one direction.

[0086] B→E2: The cylinder chamber connected to port B exhausts through port E2, and the auxiliary piston moves towards port A.

[0087] Position 2 (when C2 is activated):

[0088] Airflow path:

[0089] P→B: The air source is sent into port B through port P, and the other side of the cylinder is filled with air, pushing the piston to move in the opposite direction.

[0090] A→E1: The cylinder chamber connected to port A exhausts through port E1, and the auxiliary piston moves towards port B.

[0091] Switching Example:

[0092] Activate C1:

[0093] P→A;

[0094] B→E2;

[0095] Activate C2:

[0096] P→B;

[0097] A→E1.

[0098] Third embodiment:

[0099] In one embodiment, regarding the "two-position five-way center valve":

[0100] The three-position five-way center valve is a common pneumatic or hydraulic valve with three operating positions, designed to control the action of a double-acting cylinder. The following is a detailed analysis of the name and function of each port.

[0101] 【1】Interface Name and Function

[0102] The five ports of the three-position five-way center valve are marked as follows:

[0103] P: Pressure port;

[0104] A, B: Working Ports;

[0105] R, S: Exhaust Ports;

[0106] (1) Gas source port (P):

[0107] effect:

[0108] The air source port connects to an external air source (such as a compressed air system) to provide power to the entire valve and subsequent actuators.

[0109] Flow direction:

[0110] Gas flows into the valve core from the gas source port and is then distributed to the working port A or B.

[0111] (2) Working ports (A and B):

[0112] effect:

[0113] Ports A and B connect to the two ends of an actuator (such as a double-acting cylinder) and are used to provide air pressure to drive the piston to move in two directions.

[0114] When air is supplied through port A, the cylinder piston moves to one side; when air is supplied through port B, the cylinder piston moves to the other side.

[0115] Flow direction:

[0116] Ports A and B are connected to P (air source port) or R / S (exhaust port) respectively, depending on the valve core switching, forming different working states.

[0117] (3) Exhaust ports (R and S):

[0118] effect:

[0119] The exhaust port is used to discharge the residual gas from the working port (A or B) to the external environment, completing the cylinder's operating cycle.

[0120] R is usually connected to the exhaust passage of port A, and S is usually connected to the exhaust passage of port B.

[0121] Features:

[0122] Exhaust ports are usually equipped with mufflers to reduce exhaust noise.

[0123] The function of the exhaust port is to ensure the pressure balance within the system and prevent gas stagnation.

[0124] 【2】Three working positions of a three-position five-way center valve:

[0125] The "center-pass" function of the three-position five-way valve means that when it is in the center position, the air source is disconnected from all working ports, working ports A and B are connected to exhaust ports R and S, and exhaust is applied to both ends of the cylinder, which is in a powerless state.

[0126] Each work location corresponds to a different path configuration:

[0127] (1) Working position: [Left position]; Passage connection status: [P→A; B→S]; Function: [Air source enters port A, pushing the cylinder piston to move to the right, exhausting air through port B.]

[0128] (2) Working position: [Middle position (centrally open)]; Passage connection status: [A→R; B→S (P disconnected)]; Function: [Exhaust gas from ports A and B, no pressure at both ends of the cylinder, piston stops moving.]

[0129] (3) Working position: [Right position]; Passage connection status: [P→B; A→R]; Function: [Air source enters port B, pushing the cylinder piston to move to the left, exhausting air through port A.]

[0130] [3] Summary table of interface names and functions:

[0131] (1) Interface P; Function: Air source port: connects to external compressed air to provide power to valves and actuators.

[0132] (2) Interface A; Function: Working port A: Connects to one end of the actuator (cylinder) to control the piston to move in one direction.

[0133] (3) Interface B; Function: Working port B: connects to the other end of the actuator (cylinder) and controls the piston to move in the opposite direction.

[0134] (4) Interface R; Function: Exhaust port R: Corresponds to port A, exhausts excess gas from port A, and ensures smooth operation.

[0135] (5) Interface S; Function: Exhaust port S: Corresponds to port B, exhausts excess gas from port B, and ensures smooth exhaust when the cylinder resets or reverses.

[0136] Fourth embodiment:

[0137] In one embodiment, regarding the "pneumatic limit switch":

[0138] Working principle of purely mechanical pneumatic limit switches:

[0139] 【1】Structure and installation of pneumatic limit switches:

[0140] Purely mechanical pneumatic limit switches typically include a mechanical arm or lever that is actuated when it comes into contact with a moving part of a mechanical system.

[0141] Such switches are typically installed at critical locations in pneumatic systems, such as the end of a cylinder or along the path of a moving device, to ensure that they are triggered when a specific position is reached.

[0142] [2] Mechanical triggering process:

[0143] When the moving part of the pneumatic system (such as the cylinder piston) reaches the end of its operation, it will directly push or impact the mechanical arm of the pneumatic limit switch.

[0144] This mechanical action causes the switch arm to move, which in turn triggers the control mechanism connected to the gas valve.

[0145] 【3】Mechanical connection for controlling valves:

[0146] Pneumatic limit switches are directly connected to air valves via mechanical connections such as mechanical linkages, push rods, or cables.

[0147] When the switch is triggered, the movement of its robotic arm is transmitted through these mechanical connections, causing the valve to open or close.

[0148] 【4】Operation of the air valve:

[0149] In most designs, a pneumatic valve may be a simple gate valve or ball valve that is connected to a switch via a mechanical connection (such as a rod or cable).

[0150] The movement of the switch arm is converted into a valve opening and closing action, directly controlling the flow of air. When open, gas flows from the compressed air source through the valve to the actuator (such as a cylinder) to perform the required action; when closed, the airflow is blocked, stopping the action or maintaining the current state.

[0151] 【4】Automatic Reset:

[0152] Typically, this type of pneumatic limit switch automatically returns to its original position by spring force or gravity when the moving part returns to its initial position, ready for the next trigger.

[0153] Fifth embodiment:

[0154] In one embodiment, the "two-position five-way valve" can refer to any one of the following two-position five-way pneumatic control valves published by Chinese Patent Publication Nos.: CN106641314A, CN106239475A, CN108036072A, CN203022655U, CN209036876U, CN204004713U, CN203159729U, CN206280524U, and CN203230455U.

[0155] In one embodiment, the "pneumatic motor" can refer to any one of the pneumatic motors with Chinese patent publication numbers: CN102639816A, CN105500265A, CN1847671A, CN105643177A, CN203848975U, CN105312884A, CN108789171A, CN202279861U, CN108188499A, CN207356782U, and CN203175585U.

[0156] In one embodiment, the "pneumatic limit switch" can refer to any one of the pneumatic limit switches in Chinese patent publication numbers: CN204312118U, CN203579131U, CN212634747U, CN217402254U, CN114962361A, and CN110434956A.

[0157] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A pneumatically controlled power device, characterized in that, include: Pneumatic motor; The pneumatic motor has a first air intake control port and a second air intake control port. The first air valve is a two-position five-way valve. The second air valve is a two-position five-way valve. First air source; the first air source is connected to the air source port of the first air valve; Second air source; the second air source is connected to the air source port of the second air valve; Wherein, the first working port of the first air valve is connected to the first air inlet control port, and the second working port of the first air valve is connected to the second air inlet control port; the first working port of the second air valve is connected to the first control port of the first air valve, and the second working port of the second air valve is connected to the second control port of the first air valve.

2. The pneumatically controlled power equipment as described in claim 1, characterized in that, The first air valve is a two-position five-way center valve.

3. The pneumatically controlled power equipment as described in claim 1, characterized in that, Also includes: First gas circuit switch; The first gas source is connected to the first control port of the second gas valve through the first gas circuit switch.

4. The pneumatically controlled power equipment as described in claim 3, characterized in that, The first pneumatic circuit switch is a pneumatically controlled limit switch.

5. The pneumatically controlled power device as described in claim 3, characterized in that, Also includes: The first control valve; the first air circuit switch is connected through the first control port of the first control valve and the second air valve; one input port of the first control valve is connected to the first air circuit switch, and the output port of the first control valve is connected to the first control port of the second air valve.

6. The pneumatically controlled power device as described in claim 5, characterized in that, Also includes: The third air circuit switch is a pneumatically controlled limit switch. The third gas circuit switch is connected to another input port of the first valve.

7. The pneumatically controlled power device as described in claim 1, characterized in that, Also includes: The second gas circuit switch; the first gas source is connected to the second control port of the second gas valve through the second gas circuit switch.

8. The pneumatically controlled power device as described in claim 7, characterized in that, The second air circuit switch is a pneumatically controlled limit switch.

9. The pneumatically controlled power equipment as described in claim 7, characterized in that, Also includes: The second control valve; the second air circuit switch is connected through the second control port of the second control valve and the second air valve; one input port of the second control valve is connected to the second air circuit switch, and the output port of the second control valve is connected to the second control port of the second air valve.

10. The pneumatically controlled power device as described in claim 9, characterized in that, Also includes: The fourth pneumatic circuit switch is a pneumatically controlled limit switch. The fourth gas circuit switch is connected to another input port of the second valve.

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