Safety control device of gas-liquid boosting cylinder

Abstract

The utility model relates to a safety control device of a gas-liquid boosting cylinder, which comprises an outer shell, a first connecting port and a second connecting port are arranged on the outer wall of the outer shell; the extension and retraction control valve is used for controlling extension and retraction of the gas-liquid boosting cylinder; when the gas-liquid boosting cylinder is interrupted, the safety locking control valve is used for cutting off a gas circuit of the gas-liquid boosting cylinder; when the stroke conversion valve is closed, a piston rod of the gas-liquid boosting cylinder extends out; and the safety balance air pressure reducing valve is used for providing a path of jacking air pressure, and the jacking air pressure is used for balancing the weight of a pressure head load of the air-liquid boosting cylinder. According to the safety control device of the gas-liquid boosting cylinder, the assembly speed is optimized, a single valve plate needs to be manually installed in the prior art, point positions are connected into a control system, programming is conducted according to functions, and installation can be completed only by connecting electricity, gas and communication; more abundant control options ensure that the gas-liquid boosting cylinder has enough control modes; the pneumatic control loop is provided with a safety control element, and the operation safety of the gas-liquid boosting cylinder is considered from multiple angles.

Description

Technical Field

[0001] The utility model relates to the technical field of gas-liquid booster cylinders, in particular to a safety control device for gas-liquid booster cylinders. Background Art

[0002] The gas-liquid booster cylinder is a new energy-saving product developed in recent years both domestically and internationally. It uses gas as the main power source and combines the stability and high pressure of hydraulic pressure to achieve low-pressure operation and high-pressure output. The gas-liquid booster cylinder combines the advantages of the gas cylinder and the oil cylinder. Its hydraulic oil and compressed air are isolated from each other. It has the characteristics of simple structure, easy installation, fast action speed and stable transmission.

[0003] With the rapid development of Industry 4.0, the simple basic functions of the gas-liquid booster cylinder as a separate actuator can no longer meet the needs of increasingly complex equipment. For some non-standard equipment with general demand functions, the functional complexity and sub-item standardization of its control system is an inevitable trend. For a simple gas-liquid booster cylinder control, adding a valve plate to perform the extension and retraction function can only meet the basic application, and its own power source external connection, safety, and intelligence cannot meet the requirements. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the gas-liquid booster cylinder required for some complex non-standard equipment can no longer meet the requirements of system safety by simply using valve plates.

[0005] In order to solve the above technical problems, the utility model provides a safety control device for a gas-liquid booster cylinder, comprising: an outer shell, an outer wall of which is provided with interface 1 and interface 2; an extension and retraction control valve, which is arranged in the outer shell, and the extension and retraction control valve is used to control the extension and retraction of the gas-liquid booster cylinder; a safety locking control valve, which is arranged in the outer shell, and when the gas-liquid booster cylinder is interrupted, the safety locking control valve is used to shut off the gas path of the gas-liquid booster cylinder; a stroke conversion valve, which is arranged in the outer shell, and when the stroke conversion valve is closed, the piston rod of the gas-liquid booster cylinder is extended; a safety balancing gas pressure reducing valve, which is arranged in the outer shell, and the safety balancing gas pressure reducing valve is used to provide a path of lifting gas pressure, and the lifting gas pressure is used to balance the weight of the pressure head load carried by the gas-liquid booster cylinder.

[0006] In one embodiment of the utility model, a speed control valve 1 and a speed control valve 2 are provided in the outer shell, the speed control valve 1 is connected to the interface 1, and the speed control valve 2 is connected to the interface 2. The speed control valve 1 and the speed control valve 2 are used to control the operating speed of the gas-liquid booster cylinder according to demand.

[0007] In one embodiment of the utility model, an external air source quick plug is provided on the outer wall of the outer shell, and the external air source quick plug is connected to the extension and retraction control valve and the stroke conversion valve through pipelines.

[0008] In one embodiment of the utility model, an air source distributor block is provided in the outer shell, and the air source distributor block is connected to an external air source quick plug, and the air source distributor block is connected to the extension and retraction control valve and the stroke conversion valve through different pipelines.

[0009] In one embodiment of the utility model, a force-enhancing control interface is provided on the outer wall of the outer shell, a locking valve is provided in the outer shell, and the force-enhancing control interface is connected to the locking valve.

[0010] In one embodiment of the utility model, a force-boosting control shuttle valve is provided in the outer shell, two pipes 1 are connected to the locking valve, and the locking valve is connected to the force-boosting control shuttle valve through the two pipes 1.

[0011] In one embodiment of the utility model, a pipeline 2 is connected to the force booster control shuttle valve, and the force booster control shuttle valve is connected to the stroke conversion valve through the pipeline 2.

[0012] In one embodiment of the utility model, an external gas source quick plug 2 is provided on the outer wall of the outer shell, and an gas source gas distribution block 1 is provided inside the outer shell. The external gas source quick plug 2 is connected to the gas source gas distribution block 1, and the gas source gas distribution block 1 is connected to the safety balance gas pressure reducing valve and the stroke conversion valve through a pipeline.

[0013] In one embodiment of the utility model, a four-way is provided inside the outer shell, and the four ports of the four-way are respectively connected to interface 1, the extension and retraction control valve, the safety locking control valve and interface 2 through pipelines.

[0014] In one embodiment of the utility model, the interface 1 is connected to the extension and retraction control valve through a pipeline, and the interface 2 is connected to the safety locking control valve through a pipeline.

[0015] Compared with the prior art, the safety control device of the gas-liquid booster cylinder of the utility model has the following beneficial effects:

[0016] 1. Optimization of assembly speed. Previously, it was necessary to manually install a single valve piece, then connect the point to the control system and program according to the function. Now, the installation can be completed by simply connecting electricity, gas, and communication.

[0017] 2. More control options ensure that the gas-liquid booster cylinder has enough control modes;

[0018] 3. The pneumatic control circuit has its own safety control element, which considers the operation safety of the gas-liquid booster cylinder from multiple angles;

[0019] 4. Modular control system, digital model is directly placed in the early design, saving the design time of the mechanical control system installation location;

[0020] 5. Effectively avoid assembly and debugging rework time caused by wrong installation or missing installation of control components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0022] Figure 1 The structure diagram of the safety control device of the gas-liquid booster cylinder in the preferred embodiment of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure diagram of the safety control device of the gas-liquid booster cylinder in the preferred embodiment of the utility model is shown in FIG. Figure 2 .

[0024] Explanation of the markings in the drawings in the specification: outer shell 1, extension and retraction control valve 2, safety locking control valve 3, stroke conversion valve 4, safety balance gas pressure reducing valve 5, speed control valve one 6, speed control valve two 7, external air source quick plug one 8, air source gas distributor block one 9, force booster control interface 10, interface one 11, interface two 12, locking valve 13, force booster control shuttle valve 14, pipeline one 15, pipeline two 16, external air source quick plug two 17, air source gas distributor block one 18, four-way valve 19, threading hole 20, carrying handle 21, valve silencer 22. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0026] Reference Figure 1 , 2As shown, the safety control device of the gas-liquid booster cylinder of the utility model comprises: an outer shell 1, an extension and retraction control valve 2, a safety locking control valve 3, a stroke conversion valve 4 and a safety balance gas pressure reducing valve 5; the outer shell 1 has an interface 11 and an interface 2 12 on its outer wall; the extension and retraction control valve 2 is arranged in the outer shell 1, and the extension and retraction control valve 2 is used to control the extension and retraction of the gas-liquid booster cylinder; the safety locking control valve 3 is arranged in the outer shell 1, and the safety locking control valve 3 is used to control the extension and retraction of the gas-liquid booster cylinder When the air source of the booster cylinder is interrupted, the internal air circuit is locked to ensure that the piston rod of the gas-liquid booster cylinder will not fall due to gravity; the stroke conversion valve 4 is arranged in the outer shell 1, and when the stroke conversion valve 4 is closed, the piston rod of the gas-liquid booster cylinder extends, and the valve silencer 22 is connected to the extension and retraction control valve 2 and the stroke conversion valve 4; the safety balancing air pressure reducing valve 5 is arranged in the outer shell 1, and the safety balancing air pressure reducing valve 5 is used to provide a path of lifting air pressure, and the lifting air pressure is used to balance the weight of the pressure head load carried by the gas-liquid booster cylinder.

[0027] The stroke conversion valve 4 is the output switch of the gas-liquid booster cylinder. When the stroke conversion valve 4 is closed, the cylinder piston rod of the gas-liquid booster cylinder can only be pneumatically extended and cannot increase the force. It is generally used in the occasion of piston rod mold change.

[0028] The function of the safety balancing gas pressure reducing valve 5 is that, since slight leakage of pipelines and joints is unavoidable, the piston rod of the gas-liquid booster cylinder may slowly slide down over time after the safety locking control valve is triggered. This safety balancing gas pressure reducing valve 5 provides an effective supporting gas to balance the weight of the piston cylinder and the mold, effectively ensuring that the piston rod of the gas-liquid booster cylinder will not slide down even if there is slight leakage of pipelines and joints.

[0029] In the above structure, a speed control valve 1 6 and a speed control valve 2 7 are provided in the outer shell 1, the speed control valve 1 6 is connected to the interface 1 1, the speed control valve 2 7 is connected to the interface 2 12, and the speed control valve 1 6 and the speed control valve 2 7 are used to control the operating speed of the gas-liquid booster cylinder according to demand.

[0030] In the above structure, an external gas source quick plug 8 is provided on the outer wall of the outer shell 1, and the external gas source quick plug 8 is respectively connected to the extension and retraction control valve 2 and the stroke conversion valve 4 through pipelines. An air source gas distributor block 9 is provided inside the outer shell 1, and the air source gas distributor block 9 is connected to the external gas source quick plug 8, and the air source gas distributor block 9 is respectively connected to the extension and retraction control valve 2 and the stroke conversion valve 4 through different pipelines.

[0031] In the above structure, an external gas source quick plug 17 is provided on the outer wall of the outer shell 1, and an air source gas distribution block 18 is provided inside the outer shell 1. The external gas source quick plug 17 is connected to the air source gas distribution block 18, and the air source gas distribution block 18 is connected to the safety balance gas pressure reducing valve 5 and the stroke conversion valve 4 through a pipeline.

[0032] In the above structure, a force-boosting control interface 10 is provided on the outer wall of the outer shell 1, and a locking valve 13 is provided in the outer shell 1, and the force-boosting control interface 10 is connected to the locking valve 13. A force-boosting control shuttle valve 14 is provided in the outer shell 1, and two pipes 15 are connected to the locking valve 13, and the locking valve 13 is connected to the force-boosting control shuttle valve 14 through the two pipes 15. A pipe 2 16 is connected to the force-boosting control shuttle valve 14, and the force-boosting control shuttle valve 14 is connected to the stroke conversion valve 4 through the pipe 2 16.

[0033] In the above structure, a four-way 19 is provided inside the outer shell 1, and the four ports of the four-way 19 are respectively connected to the interface 1 11, the extension and retraction control valve 2, the safety locking control valve 3 and the interface 2 12 through pipelines. The interface 1 11 is connected to the extension and retraction control valve 2 through a pipeline, and the interface 2 12 is connected to the safety locking control valve 3 through a pipeline.

[0034] In addition, a threading hole 20 and a carrying handle 21 are provided on the side wall of the outer shell 1 .

[0035] The working process of the safety control device of the gas-liquid booster cylinder of the utility model is as follows:

[0036] Step 1: Install the device to a reliable location on the equipment and fix the screws based on the four corner mounting holes;

[0037] Step 2: Supply air through the external air source quick plug 1 8 and the external air source quick plug 2 17 on one side of the device, and connect the air-liquid booster cylinder extension and retraction control port and the booster control port through the top interface 11 and the interface 2 12;

[0038] Step 3: By adjusting the safety balance gas pressure reducing valve 5, a reliable lifting gas pressure is provided to balance the weight of the pressure head load carried by the gas-liquid booster cylinder, providing a safety redundancy;

[0039] Step 4: Adjust the speed control valve 1 6 and the speed control valve 2 7 to make the extension and retraction speed of the gas-liquid booster cylinder within the range required by the equipment;

[0040] Step 5: Connect the power supply and communication of the valve field control module through the threading hole 20 on the right side of the device and access the main control system of the equipment;

[0041] Step 6: Through the valve field control module, in conjunction with the pre-set main control system program, the extension valve, retraction valve, stroke conversion valve 4 and safety locking control valve 3 are controlled to make the gas-liquid booster cylinder circulate according to the established program.

[0042] The safety control device of the gas-liquid booster cylinder of the utility model has the following advantages:

[0043] a. The gas-liquid booster cylinder safety balance air pressure reducing valve provides a reliable lifting balance air source to balance the weight of the load carried by the gas-liquid booster cylinder, greatly alleviating the probability of damage to the locking valve caused by excessive load;

[0044] b. In addition to providing the basic gas-liquid booster cylinder extension valve and retraction valve, this device also includes a gas-liquid booster cylinder force stroke conversion valve and a gas-liquid booster cylinder safety locking control valve. With the help of special programs, personalized and intelligent control of the gas-liquid booster cylinder can be performed, such as the gas-liquid booster cylinder mid-stop mode, mold change mode, fast-forward extension without boost mode, etc.

[0045] c. This device is prefabricated in one piece. You only need to connect the external power supply and the air pipe, and allocate some control pipelines to complete the deployment of the gas-liquid booster cylinder control system. It is fast and simple.

[0046] d. This device includes a gas-liquid booster cylinder speed control valve, which can control the running speed of the gas-liquid booster cylinder according to demand;

[0047] e. Air pipe interfaces and control point interfaces are reserved on the air source distribution block and valve field control module of the air-liquid booster cylinder control device. Additional components required can be added according to actual conditions, thereby improving the flexibility of the control device.

[0048] f. The outer shell of this device is welded from three layers of steel plates to protect the internal components and pipelines from accidental damage to the greatest extent.

[0049] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A safety control device for a gas-liquid booster cylinder, characterized in that: include, The outer shell has an outer wall provided with interface 1 and interface 2; An extension and retraction control valve is arranged in the outer shell, and the extension and retraction control valve is used to control the extension and retraction of the gas-liquid booster cylinder; A safety locking control valve is arranged in the outer shell, and when the gas-liquid booster cylinder is interrupted, the safety locking control valve is used to shut off the gas path of the gas-liquid booster cylinder; A stroke conversion valve is arranged in the outer shell, and when the stroke conversion valve is closed, the piston rod of the gas-liquid booster cylinder extends; A safety balancing gas pressure reducing valve is arranged in an outer shell. The safety balancing gas pressure reducing valve is used to provide a path of lifting gas pressure, and the lifting gas pressure is used to balance the weight of the pressure head load carried by the gas-liquid booster cylinder.

2. The safety control device for the gas-liquid booster cylinder according to claim 1 is characterized in that: The outer shell is provided with a speed control valve 1 and a speed control valve 2, wherein the speed control valve 1 is connected to the interface 1, and the speed control valve 2 is connected to the interface 2, and the speed control valve 1 and the speed control valve 2 are used to control the running speed of the gas-liquid booster cylinder according to demand.

3. The safety control device for the gas-liquid booster cylinder according to claim 1 is characterized in that: An external air source quick plug is arranged on the outer wall of the outer shell, and the external air source quick plug is respectively connected to the extension and retraction control valve and the stroke conversion valve through pipelines.

4. The safety control device for the gas-liquid booster cylinder according to claim 3 is characterized in that: An air source distributor block 1 is arranged in the outer shell, and the air source distributor block 1 is connected with an external air source quick plug 1, and the air source distributor block 1 is respectively connected to the extension and retraction control valve and the stroke conversion valve through different pipelines.

5. The safety control device for the gas-liquid booster cylinder according to claim 1 is characterized in that: A force-enhancing control interface is arranged on the outer wall of the outer shell, a locking valve is arranged in the outer shell, and the force-enhancing control interface is connected to the locking valve.

6. The safety control device for the gas-liquid booster cylinder according to claim 5, characterized in that: A force-boosting control shuttle valve is arranged in the outer shell, two pipes 1 are connected to the locking valve, and the locking valve is connected to the force-boosting control shuttle valve through the two pipes 1.

7. The safety control device for the gas-liquid booster cylinder according to claim 6 is characterized in that: The force boost control shuttle valve is connected to a pipeline 2, and the force boost control shuttle valve is connected to the stroke conversion valve through the pipeline 2.

8. The safety control device for the gas-liquid booster cylinder according to claim 1 is characterized in that: An external gas source quick plug 2 is provided on the outer wall of the outer shell, and an gas source gas distribution block 1 is provided inside the outer shell. The external gas source quick plug 2 is connected to the gas source gas distribution block 1, and the gas source gas distribution block 1 is connected to the safety balance gas pressure reducing valve and the stroke conversion valve through a pipeline.

9. The safety control device for the gas-liquid booster cylinder according to claim 1, characterized in that: A four-way is provided inside the outer shell, and four ports of the four-way are respectively connected to the interface 1, the extension and retraction control valve, the safety locking control valve and the interface 2 through pipelines.

10. The safety control device for the gas-liquid booster cylinder according to claim 1, characterized in that: The interface 1 is connected to the extension and retraction control valve through a pipeline, and the interface 2 is connected to the safety locking control valve through a pipeline.

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