A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve

Abstract

This utility model discloses a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve, relating to the field of mechanical device technology. The utility model includes an outer cylinder barrel, on which a bidirectional logic valve body is horizontally mounted. The bidirectional logic valve body has a front chamber air inlet and a rear chamber air inlet connected together. A logic valve piston is symmetrically abutted inside the bidirectional logic valve body, and a logic valve drive rod is mounted on the end face of the logic valve piston. This utility model, with its bidirectional logic valve body, front chamber air inlet, and rear chamber air inlet, eliminates the need for additional mechanical locking devices. It utilizes the principle of airlock to achieve fail-safe operation. Changes in the internal air pressure of the front and rear chamber air inlets precisely control the extension and retraction of the piston rod. A dustproof and waterproof exhaust filter is also included to filter the gas entering the engine's filter passage, preventing dust and humid air from forming sludge that clogs the exhaust port and ensuring the normal operation of the bidirectional logic valve body.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical device technology, and in particular relates to a multi-stage anti-corrosion cylinder with a pneumatically controlled bidirectional logic valve. Background Technology

[0002] An engine is a machine that converts other forms of energy into mechanical energy, providing power to mechanical equipment. It is a core component of modern industry, transportation, and energy systems. An engine generates high-temperature, high-pressure gas by burning fuel, which drives the piston to move. The crankshaft then converts linear motion into rotational motion, outputting torque and power. The engine's components include multi-stage corrosion-resistant cylinders. These cylinders generate pressure by compressing air, converting chemical energy into mechanical energy, which drives the piston to reciprocate. The connecting rod then converts the potential energy of the reciprocating motion into rotational power, enabling the crankshaft to rotate. However, multi-stage corrosion-resistant cylinders have the following shortcomings during use: On the one hand, the structure of multi-stage corrosion-resistant cylinders is simple and cannot achieve dual pneumatic control. When the engine filtration system is working, it is difficult to select and control different intake channels, which affects the stability and reliability of piston rod extension and retraction, and may even cause malfunctions, posing safety hazards. On the other hand, since multi-stage corrosion-resistant cylinders work in the engine's filtration channel, dust and humid air will come into contact at the junction, forming sludge and dirt on the control system, affecting the exhaust and breathing of the control valve, affecting the operation of the multi-stage corrosion-resistant cylinder, and thus hindering the normal operation of the engine.

[0003] To address these issues, we provide a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve. By setting up a bidirectional logic valve body, a front chamber air inlet and a rear chamber air inlet, multiple functions are integrated and the logic unit is optimized to achieve small space occupation, long extension length, and reliable use in corrosive environments. Furthermore, by setting up a dustproof and waterproof emission filter, the gas entering the engine filter channel is filtered to prevent it from affecting the normal operation of the bidirectional logic valve body and to ensure normal operation, thereby solving the technical problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve, comprising an outer cylinder barrel, on which a bidirectional logic valve body is horizontally mounted. The bidirectional logic valve body has a front chamber air inlet and a rear chamber air inlet connected to it. A logic valve piston is symmetrically abutted inside the bidirectional logic valve body. A logic valve drive rod is mounted on the end face of the logic valve piston. A one-way valve connected to the end of the logic valve drive rod is located on the side away from the logic valve piston. A dustproof and waterproof discharge filter is mounted on the lower surface of the bidirectional logic valve body.

[0006] The present invention is further configured such that a piston rod is connected to the telescopic end of the outer cylinder, and a connecting seat is fixedly connected to the end of the piston rod.

[0007] The present invention is further configured such that a hinge seat is fixedly connected to the end face of the outer cylinder, and the hinge seat is located on the side away from the piston rod.

[0008] The present invention is further configured such that a support is fixedly connected to the lower surface of the bidirectional logic valve body, and the support is fixedly connected to the periphery of the outer cylinder.

[0009] The present invention is further configured such that the rear chamber intake and exhaust throttle valve connected to the side wall of the bidirectional logic valve body is located on the side near the rear chamber intake port, and the rear chamber intake and exhaust throttle valve is connected and installed on the outer cylinder.

[0010] The present invention is further configured such that a front chamber intake and exhaust throttle valve is connected to the outer cylinder, and a connecting pipe is fixedly connected to the front chamber intake and exhaust throttle valve, the end of the connecting pipe being fixedly connected to the bidirectional logic valve body.

[0011] This utility model has the following beneficial effects: 1. This utility model achieves dual control of gas by setting a bidirectional logic valve body, a front chamber air inlet, and a rear chamber air inlet. When the engine filtration system is working, it selects and controls different air intake channels. It can solidify the air intake channel state when the outer cylinder is not supplied with air, thereby achieving cylinder self-locking when there is no air pressure (the gas is locked in the outer cylinder when not working), maintaining stable and reliable support and recovery. After the gas is introduced into the rear chamber air inlet or the front chamber air inlet, it drives the exhaust side logic valve piston, opening the one-way valve in the opposite direction, realizing the extension or retraction of the piston rod. During operation, relative air acts on the logic valve piston, causing the logic valve drive rod to move and push the one-way valve to achieve pneumatic control. Compared with the prior art, this multi-stage anti-corrosion cylinder with pneumatically controlled bidirectional logic valve integrates multiple functions and optimizes the logic unit, achieving small space occupation, long extension length, and reliable use in corrosive environments.

[0012] 2. This utility model filters the gas entering the engine filter channel by setting a dustproof and waterproof emission filter (the multi-stage anti-corrosion cylinder with a pneumatically controlled bidirectional logic valve works inside the engine filter channel), avoiding the mixing and contact of dust and humid air in the engine filter channel, preventing the formation of mud and stains on the control system that affect the exhaust and breathing of the control valve, and adding a lower breathing filter to ensure the reliability of operation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0014] Figure 1 A three-dimensional schematic diagram of a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve; Figure 2 This is a front view schematic diagram of a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve; Figure 3 This is a top view schematic diagram of a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve; Figure 4 This is a cross-sectional schematic diagram of the body of the bidirectional logic valve.

[0015] The attached diagram lists the components represented by each number as follows: 100-Outer cylinder, 101-Piston rod, 101a-Connecting seat, 102-Hinge seat, 200-Two-way logic valve body, 201-Front chamber air inlet, 201a-Front chamber air inlet / exhaust throttle valve, 202-Rear chamber air inlet, 202a-Rear chamber air inlet / exhaust throttle valve, 203-Connecting pipe, 204-Support, 205-Logic valve piston, 206-Logic valve drive rod, 207-One-way valve, 300-Dustproof and waterproof discharge filter. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model is a multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve, including an outer cylinder 100. A bidirectional logic valve body 200 is horizontally installed on the outer wall of the outer cylinder 100. The bidirectional logic valve body 200 is connected to a front chamber air inlet 201 and a rear chamber air inlet 202. A logic valve piston 205 is symmetrically abutted inside the bidirectional logic valve body 200. A logic valve drive rod 206 is installed on the end face of the logic valve piston 205. A one-way valve 207 connected to the end of the logic valve drive rod 206 is located on the side away from the logic valve piston 205. A dustproof and waterproof discharge filter 300 is installed on the lower surface of the bidirectional logic valve body 200. Specifically, a support 204 is fixed to the lower surface of the bidirectional logic valve body 200. The support 204 is fixed to the periphery of the outer cylinder 100. The support 204 is installed on the outer cylinder 100 to support the bidirectional logic valve body 200 and increase the stability of the bidirectional logic valve body 200. The rear chamber intake and exhaust throttle valve 202a connected to the side wall of the bidirectional logic valve body 200 is located on the side near the rear chamber intake port 202. The rear chamber intake and exhaust throttle valve 202a is connected and installed on the outer cylinder 100. The rear chamber intake and exhaust throttle valve 202a is used to regulate the flow rate of gas entering and exiting the rear chamber of the bidirectional logic valve body 200, so as to realize the smooth extension of the piston rod 101. A front chamber intake and exhaust throttle valve 201a is connected and installed on the outer cylinder 100. A connecting pipe 203 is connected and fixed to the front chamber intake and exhaust throttle valve 201a. The end of the connecting pipe 203 is connected and fixed to the bidirectional logic valve body 200. The front chamber intake and exhaust throttle valve 201a is used to regulate the flow rate of gas entering and exiting the front chamber of the bidirectional logic valve body 200, so as to realize the smooth contraction of the piston rod 101. Furthermore, a piston rod 101 is connected to the telescopic end of the outer cylinder 100. A connecting seat 101a is fixed to the end of the piston rod 101, and the connecting seat 101a is connected to the external structure. This allows the piston rod 101 to drive the external structure to reciprocate during extension or retraction, thereby adjusting the position of the external structure. A hinge seat 102 is fixedly connected to the end face of the outer cylinder 100. The hinge seat 102 is located on the side away from the piston rod 101. The hinge seat 102 is used for the connection between the outer cylinder 100 and the mounting mechanism, and at the same time facilitates the angle adjustment of the outer cylinder 100 according to the working needs. The operation process of this embodiment is as follows: The hinge seat 102 is installed on the mounting mechanism of the equipment, and the connecting seat 101a is connected to the external structure (the part on the equipment that needs to move back and forth). No external air source pressure is introduced into the interior of the front cavity air inlet 201 and the rear cavity air inlet 202. At this time, the bidirectional logic valve body 200 keeps both chambers inside the outer cylinder 100 in a closed state (air lock), so that the piston body inside the outer cylinder 100 cannot move, thereby fixing the position of the piston rod 101. When the piston rod 101 needs to extend, external gas is introduced into the rear chamber air inlet 202. The gas acts on the bidirectional logic valve body 200, pushing the logic valve piston 205 near the rear chamber air inlet 202 to move, causing the corresponding logic valve drive rod 206 to move, opening the one-way valve 207 near the rear chamber air inlet 202, allowing gas to enter the rear chamber of the outer cylinder 100. At the same time, the logic valve piston 205 away from the rear chamber air inlet 202 remains fixed and does not move. The side of the bidirectional logic valve body 200 near the front chamber air inlet 201 remains closed. The gas inside the rear chamber of the outer cylinder 100 gradually increases, making the gas pressure in the rear chamber of the outer cylinder 100 greater than the gas pressure in its front chamber, pushing the piston body on the piston rod 101 to move towards the front chamber of the outer cylinder 100, and the piston rod 101 extends. When the piston rod 101 needs to retract, the gas inside the rear chamber air inlet 202 is removed, and external gas is introduced into the front chamber air inlet 201. The gas acts on the bidirectional logic valve body 200, pushing the logic valve piston 205 near the front chamber air inlet 201 to move, causing the corresponding logic valve drive rod 206 to move, opening the one-way valve 207 near the front chamber air inlet 201, allowing gas to enter the front chamber of the outer cylinder 100. At the same time, the logic valve piston 205 away from the front chamber air inlet 201 remains fixed and does not move. The side of the bidirectional logic valve body 200 near the rear chamber air inlet 202 remains closed. The gas inside the front chamber of the outer cylinder 100 gradually increases, making the gas pressure inside the front chamber of the outer cylinder 100 greater than the gas pressure inside its rear chamber, pushing the piston body on the piston rod 101 to move towards the rear chamber of the outer cylinder 100, causing the piston rod 101 to retract. When the engine stops or the air supply is suddenly interrupted, the air pressure supplied to the two-way logic valve body 200 disappears. At this time, the two-way logic valve body 200 will automatically reset or maintain the current air circuit state, sealing the compressed air in the chamber of the outer cylinder 100. Since the gas is incompressible, the piston body on the piston rod will be firmly locked in the current position. The dustproof and waterproof exhaust filter 300 filters the air entering the bidirectional logic valve body 200 to prevent dust and moisture from forming sludge and ensure the normal operation of the valve body.

[0018] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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 the present invention. 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.

Claims

1. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve, comprising an outer cylinder barrel (100), characterized in that: A bidirectional logic valve body (200) is horizontally mounted on the outer wall of the outer cylinder (100). The bidirectional logic valve body (200) is connected to a front chamber air inlet (201) and a rear chamber air inlet (202). A logic valve piston (205) is symmetrically abutted inside the bidirectional logic valve body (200). A logic valve drive rod (206) is mounted on the end face of the logic valve piston (205). A one-way valve (207) connected to the end of the logic valve drive rod (206) is located on the side away from the logic valve piston (205). A dustproof and waterproof discharge filter (300) is mounted on the lower surface of the bidirectional logic valve body (200).

2. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve according to claim 1, characterized in that: The outer cylinder (100) is connected to a piston rod (101) at its telescopic end, and a connecting seat (101a) is fixed to the end of the piston rod (101).

3. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve according to claim 2, characterized in that: The end face of the outer cylinder (100) is fixed with a hinge seat (102), which is located on the side away from the piston rod (101).

4. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve according to claim 1, characterized in that: A support (204) is fixedly attached to the lower surface of the bidirectional logic valve body (200), and the support (204) is fixedly attached to the periphery of the outer cylinder (100).

5. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve according to claim 4, characterized in that: The rear chamber intake and exhaust throttle valve (202a) connected to the side wall of the bidirectional logic valve body (200) is located on the side near the rear chamber intake port (202), and the rear chamber intake and exhaust throttle valve (202a) is connected to the outer cylinder (100).

6. A multi-stage corrosion-resistant cylinder with a pneumatically controlled bidirectional logic valve according to claim 5, characterized in that: The outer cylinder (100) is connected to a front chamber intake and exhaust throttle valve (201a), and a connecting pipe (203) is fixedly connected to the front chamber intake and exhaust throttle valve (201a). The end of the connecting pipe (203) is fixedly connected to the bidirectional logic valve body (200).

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