Visual stop valve

Abstract

The utility model relates to the technical field of valves, in particular to a visual stop valve, which enables an operator to visually confirm a medium flowing through the valve through a visual inspection device so as to confirm the on-off condition of the valve. Through the detection device, an operator can open the needle valve to confirm whether internal leakage occurs or not under the condition that a pipeline and a valve are not disassembled, and the practicability of the device is improved; comprising a visual inspection device and a detection device, and the detection device is installed on the visual inspection device.

Description

A visual shut-off valve Technical Field

[0001] This utility model relates to the technical field of valves, and in particular to a visual shut-off valve. Background Technology

[0002] The shut-off valves used in the thermal operation of vulcanizing machines in the tire industry have all-steel housings, and all valves are at risk of internal leakage after closure. This can prevent the internal medium from being disconnected, potentially posing safety risks and wasting energy. There are various methods for confirming valve leakage. To facilitate maintenance personnel, improve troubleshooting efficiency, and reduce safety risks, a visual shut-off valve was designed and developed based on the existing shut-off valves. Because tire manufacturing processes require strict temperature and pressure control, the thermal valve assembly of the vulcanizing machine is constantly switching between on and off during vulcanization, which can easily damage the internal sealing surfaces of the valves, leading to internal leakage and affecting the vulcanization process. Currently, personnel handling this issue need to disassemble the pipeline downstream of the shut-off valve to check for leaks, which is labor-intensive and extremely inconvenient.

[0003] The existing Chinese utility model patent with application number CN201721519554.8 relates to an automatic shut-off valve, which includes a reset button assembly, a sealing ring, a shut-off valve body, a spring, a one-way valve core, and a piston assembly. It can shut off the valve body in a timely manner when abnormal situations such as pipeline rupture or ferrule failure occur downstream, or when a large flow of medium is released.

[0004] However, in actual use, the valve sealing surface of the above device experiences high temperature and high pressure at both ends after internal leakage; it is inconvenient to disassemble and inspect, and it is impossible to determine whether there is internal leakage without disassembly. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a visual shut-off valve that allows operators to visually confirm the medium flowing through the valve through a visual inspection device, so as to confirm the valve's on / off status. The detection device allows operators to open the needle valve to check for internal leakage without disassembling the pipeline and valve, thus improving the practicality of the device.

[0006] This utility model discloses a visual shut-off valve, which includes a visual inspection device and a detection device. The detection device is installed on the visual inspection device. The visual inspection device allows the operator to visually confirm the medium flowing through the valve in order to confirm the valve's on / off status. The detection device allows the operator to open the needle valve to check for internal leakage without disassembling the pipeline and valve, thus improving the practicality of the device.

[0007] Preferably, the visual inspection device includes a shut-off valve, a flange connection plate, a visual inspection tube, and a visual inspection window. One end of the shut-off valve is connected to the visual inspection tube, and a visual inspection window is installed on the visual inspection tube. A set of flange connection plates are respectively installed on the input and output ends of the shut-off valve. The shut-off valve controls the opening and closing of the pipeline, the flange connection plate facilitates the connection and disconnection of the shut-off valve and the pipeline, and the visual inspection tube and visual inspection window together facilitate the operator to visually inspect the medium in the pipeline, thus improving the practicality of the device.

[0008] Preferably, the detection device includes a venting needle valve and a high-pressure resistant tube. One end of the visual inspection tube is connected to the high-pressure resistant tube, and the other end of the high-pressure resistant tube is connected to the venting needle valve. By opening the venting needle valve, the operator can inspect the medium in the pipeline. The detection of internal leakage can be completed without closing the shut-off valve, which improves the practicality of the device.

[0009] Preferably, the inspection window is made of high-temperature tempered borosilicate glass. By using high-temperature tempered borosilicate glass for the inspection window, glass breakage can be prevented, and it can withstand high temperature and high pressure. It is also easy to clean when contaminated, reducing the serious reduction in light transmittance caused by long-term use and improving the practicality of the device.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the visual inspection device enables the operator to visually confirm the medium flowing through the valve in order to confirm the valve's on / off status; the detection device enables the operator to open the needle valve to confirm whether there is internal leakage without disassembling the pipeline and valve, thus improving the practicality of the device. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the first isometric structure of this utility model;

[0012] Figure 2 is a schematic diagram of the second isometric structure of this utility model;

[0013] The attached diagram is labeled as follows: 1. Shut-off valve; 2. Flange connection plate; 3. Inspection tube; 4. Inspection glass window; 5. Drain needle valve; 6. High-pressure resistant pipe. Detailed Implementation

[0014] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0015] Example 1

[0016] As shown in Figures 1 and 2, the detection device is installed on the visual inspection device;

[0017] First, the operator visually inspects the medium in the pipeline through the visual inspection window 4. If a problem is found, the venting needle valve 5 is opened to perform a secondary inspection of the medium. If an internal leak is found, the shut-off valve 1 can be closed.

[0018] The visual inspection device includes a shut-off valve 1, a flange connecting plate 2, a visual inspection tube 3, and a visual inspection glass window 4. One end of the shut-off valve 1 is connected to the visual inspection tube 3, and the visual inspection glass window 4 is installed on the visual inspection tube 3. A set of flange connecting plates 2 are respectively installed on the input and output ends of the shut-off valve 1.

[0019] The detection device includes an empty needle valve 5 and a high-pressure resistant tube 6. One end of the visual inspection tube 3 is connected to the high-pressure resistant tube 6, and the other end of the high-pressure resistant tube 6 is connected to the empty needle valve 5.

[0020] It also includes a visual inspection window 4 made of high-temperature resistant tempered borosilicate glass. Through the visual inspection device, the operator can visually confirm the medium flowing through the valve in order to confirm the valve's on / off status. The detection device allows the operator to open the needle valve to check for internal leakage without disassembling the pipeline and valve, thus improving the practicality of the device.

[0021] As shown in Figures 1 and 2, this utility model provides a visual shut-off valve. When in operation, the operator first visually inspects the medium in the pipeline through the visual inspection glass window 4. If a problem is found, the drain needle valve 5 is opened to perform a secondary inspection of the medium. If internal leakage is found, the shut-off valve 1 can be closed.

[0022] The drain needle valve 5 and shut-off valve 1 of the visual shut-off valve of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0023] 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 modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A visual shut-off valve; characterized in that, It includes a visual inspection device and a testing device, with the testing device installed on the visual inspection device; the visual inspection device includes a shut-off valve (1), a flange connecting plate (2), a visual inspection tube (3) and a visual inspection glass window (4), one end of the shut-off valve (1) is connected to the visual inspection tube (3), the visual inspection glass window (4) is installed on the visual inspection tube (3), and a set of flange connecting plates (2) are installed on the input and output ends of the shut-off valve (1) respectively.

2. A visual shut-off valve as described in claim 1, characterized in that, The testing device includes a venting needle valve (5) and a high-pressure resistant tube (6). One end of the visual inspection tube (3) is connected to the high-pressure resistant tube (6), and the end of the high-pressure resistant tube (6) is connected to the venting needle valve (5).

3. A visual shut-off valve as described in claim 2, characterized in that, It also includes visual inspection glass window (4) made of high temperature resistant tempered borosilicate glass.

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