A butterfly valve detection device

Abstract

This utility model discloses a butterfly valve testing device, including a frame, an operating table, a butterfly valve feeding mechanism, a butterfly valve testing chamber, a butterfly valve placement block, a butterfly valve clamping plate, and a clamping plate fixing assembly. The operating table is located at the top of the frame. The butterfly valve feeding mechanism is located at one end of the operating table for placing the butterfly valve to be tested. The butterfly valve placement block is located in the middle of the operating table and has a fluid hole. The butterfly valve testing chamber is located at the bottom of the frame and communicates with the fluid hole. The clamping plate fixing assembly includes multiple circumferentially arranged rotary clamping cylinders, capable of lifting, lowering, and rotating to clamp the butterfly valve clamping plate. The butterfly valve feeding mechanism includes a lifting cylinder, a lifting plate, and a guide rod, realizing automatic feeding of the butterfly valve. This utility model adopts an open table design for easy robotic arm operation. Through optimized clamping structure and feeding mechanism, it achieves automated butterfly valve testing, significantly improving testing efficiency and reliability.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and specifically to a butterfly valve detection device. Background Technology

[0002] Before leaving the factory, butterfly valves need to undergo airtightness testing to ensure they perform well before being sold. Currently, most testing devices used for butterfly valves are complex in structure and cumbersome to operate, requiring specialized personnel for inspection, resulting in numerous testing steps and low work efficiency.

[0003] Later, some professional butterfly valve testing devices emerged, such as the utility model patent with publication number CN222579516U, which discloses a hydraulic butterfly valve testing device. This device uses a slider, a moving block, a cylinder, and an infrared sensor. The infrared sensor detects the center position of the butterfly valve, and then the slider and moving block move the sealing cover to the appropriate position. The cylinder then moves the sealing cover downwards, sealing the top of the butterfly valve. This method has high positioning efficiency. Simultaneously, the device uses a pressure booster, a water tank, a pressure pipe, and a water pipe. Water is injected into the butterfly valve through the water pipe, and pressure is applied to the inside of the butterfly valve through the pressure pipe, simplifying the testing process. However, in actual use, because the base is a box structure and the testing equipment such as the sealing cover is located at the top of the device, this structure requires the butterfly valves to be picked up and placed from both sides of the box during large-scale testing. This makes it inconvenient for a robotic arm to handle the butterfly valves for loading and unloading, hindering automation of the testing process. Utility Model Content

[0004] The purpose of this invention is to provide a butterfly valve testing device to solve the aforementioned problems existing in the current butterfly valve testing process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A butterfly valve testing device includes a frame, an operating table, a butterfly valve feeding mechanism, a butterfly valve testing chamber, a butterfly valve placement block, a butterfly valve clamping plate, and a clamping plate fixing assembly. The operating table is located at the top of the frame, providing a working platform for testing operations. The butterfly valve feeding mechanism is located at one end of the operating table and is used to place the butterfly valve to be tested. The butterfly valve placement block is located in the middle of the operating table and has a fluid hole for the introduction of testing fluid. The butterfly valve testing chamber is located at the bottom of the frame and communicates with the fluid hole for introducing testing fluid into the fluid hole. The butterfly valve placement block is used to place the butterfly valve to be tested, and the butterfly valve clamping plate is configured to press against the other side of the butterfly valve when one side of the butterfly valve is placed on the butterfly valve placement block. The clamping plate fixing assembly includes multiple clamping members circumferentially disposed outside the butterfly valve placement block, and the clamping members are configured to rotate and move up and down to clamp and disengage from the butterfly valve clamping plate.

[0007] Furthermore, the clamping component includes a rotary clamping cylinder, which is located on one side of the butterfly valve placement block and is configured to be able to lift, move up and down and rotate to clamp or move away from the butterfly valve clamping plate.

[0008] Furthermore, the butterfly valve loading mechanism includes a lifting cylinder, a lifting plate, and guide rods. The lifting cylinder is located below the operating platform, and the lifting plate is located above the operating platform and connected to the lifting cylinder. Multiple guide rods are provided, each circumferentially positioned on the operating platform and located outside the lifting plate. The lifting plate is used to stack butterfly valves to be inspected, and the lifting cylinder drives the lifting plate to rise and fall so that the robot can grasp the butterfly valves located on the lifting plate.

[0009] Furthermore, the butterfly valve clamping plate is provided with multiple positioning grooves corresponding to the rotary clamping cylinder.

[0010] Furthermore, a pressure plate placement groove is provided on one side of the operating table where the butterfly valve placement block is located, and the pressure plate placement groove is used to place the butterfly valve pressure plate.

[0011] Furthermore, the edge of the butterfly valve clamping plate has a positioning protrusion protruding outward, and the edge of the clamping plate placement groove has a corresponding positioning notch.

[0012] The beneficial effects of this utility model are:

[0013] This invention features an open operating table design, coupled with a specialized butterfly valve loading mechanism, providing an ideal working environment for automated robotic operation. The robotic arm can directly grasp the butterfly valve from above the operating table for loading and unloading, eliminating the need for side operation and significantly simplifying the integration of the automation system. In practical applications, this efficiency improvement is even more significant, meeting the high requirements of modern production lines for testing efficiency. The clamping plate fixing assembly uses multiple rotary clamping cylinders arranged circumferentially to apply uniform clamping force to the butterfly valve clamping plate. This design avoids the sealing problems that may occur with traditional single-point clamping, ensuring a reliable seal between the butterfly valve and the testing seat during the testing process. The rotary clamping cylinders have both lifting and rotating functions; during clamping, they first descend to the position and then rotate to lock; during release, they first rotate in the opposite direction and then rise. This sequence of actions ensures a smooth and reliable clamping process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram illustrating the application scenario of the butterfly valve detection device of this utility model;

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the butterfly valve to be tested;

[0016] Figure 3 This is a schematic diagram of the butterfly valve testing device of this utility model without the butterfly valve clamping plate;

[0017] Figure 4 This is a schematic diagram of the butterfly valve detection device of this utility model.

[0018] The names corresponding to each mark in the diagram:

[0019] 1-Frame, 2-Operating table, 21-Pressure plate placement slot, 22-Positioning notch, 3-Butterfly valve feeding mechanism, 31-Lifting cylinder, 32-Lifting plate, 33-Guide rod, 4-Butterfly valve detection box, 5-Butterfly valve placement block, 51-Fluid hole, 6-Butterfly valve pressure plate, 62-Positioning protrusion, 7-Pressure plate fixing assembly, 71-Rotary clamping cylinder. Detailed Implementation

[0020] 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.

[0021] like Figures 1-4 As shown, the butterfly valve testing device includes a frame 1, an operating table 2, a butterfly valve feeding mechanism 3, a butterfly valve testing box 4, a butterfly valve placement block 5, a butterfly valve clamping plate 6, and a clamping plate fixing assembly 7. The frame 1 is welded from structural steel and has sufficient strength and rigidity. The operating table 2 is fixed to the upper end of the frame 1, providing a stable working reference surface for testing operations.

[0022] The butterfly valve testing housing 4 is installed at the lower part of the frame 1, and integrates components such as a hydraulic pump station, control system, and testing instruments. The testing housing is connected to the fluid hole 51 on the butterfly valve placement block 5 through a pipeline, which can introduce the testing medium (water or oil) into the butterfly valve and apply a predetermined pressure.

[0023] like Figure 2 and Figure 3 As shown, the butterfly valve placement block 5 is fixed in the middle of the operating table 2, and its upper shape matches the sealing surface of the butterfly valve to be tested, ensuring a good sealing effect. A fluid hole 51 passes through the butterfly valve placement block for connecting the test medium pipeline. The clamping plate fixing assembly 7 includes three rotary clamping cylinders 71, which are evenly distributed circumferentially around the butterfly valve placement block 5. Each rotary clamping cylinder 71 has two degrees of freedom: lifting and rotation, enabling it to reliably clamp the butterfly valve clamping plate 6.

[0024] The butterfly valve feeding mechanism 3 includes a lifting cylinder 31, a lifting plate 32, and four guide rods 33. The lifting cylinder 31 is installed on the lower part of the operating table 2, and its piston rod is connected to the lifting plate 32. The guide rods 33 are vertically fixed on the operating table 2, providing guidance for the lifting plate 32. The butterfly valves to be tested are stacked on the lifting plate 32, and the lifting cylinder 31 automatically adjusts the height of the lifting plate according to the material handling requirements of the robot arm.

[0025] The butterfly valve clamping plate 6 has three positioning grooves, the positions of which correspond to the pressure head of the rotary clamping cylinder 71. The edge of the clamping plate is provided with positioning protrusions 62, and the corresponding positions on the operating table 2 are provided with clamping plate placement grooves 21 and positioning notches 22, which facilitates the accurate positioning and storage of the clamping plate.

[0026] Work process:

[0027] The robotic arm first removes a butterfly valve to be tested from the lifting plate 32 of the butterfly valve loading mechanism 3 and places it on the butterfly valve placement block 5. Then, it takes out the butterfly valve clamping plate 6 from the clamping plate placement slot 21 and covers the butterfly valve. At this time, the four rotary clamping cylinders 71 of the clamping plate fixing assembly 7 act simultaneously, first descending to the position, and then rotating and locking to firmly press the butterfly valve clamping plate 6 onto the butterfly valve. The testing system introduces the testing medium into the butterfly valve through the fluid hole 51 and pressurizes it. After maintaining the pressure for a certain period of time, it detects the pressure change to determine the sealing performance of the butterfly valve. After the test is completed, the rotary clamping cylinders 71 reverse their action to release the clamping plate, the robotic arm removes the tested butterfly valve, and puts the clamping plate back into the placement slot, completing one testing cycle.

[0028] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

Claims

1. A butterfly valve detection apparatus, characterized by: The device includes a frame, an operating table, a butterfly valve feeding mechanism, a butterfly valve testing chamber, a butterfly valve placement block, a butterfly valve clamping plate, and a clamping plate fixing assembly. The operating table is located at the upper end of the frame, and the butterfly valve feeding mechanism is located at one end of the operating table for placing the butterfly valve to be tested. The butterfly valve placement block is located in the middle of the operating table and has a fluid hole for the flow of testing fluid. The butterfly valve testing chamber is located at the lower part of the frame and communicates with the fluid hole for introducing testing fluid into the fluid hole. The butterfly valve placement block is used to place the butterfly valve to be tested. The butterfly valve clamping plate is configured to press against the other side of the butterfly valve when one side of the butterfly valve is placed on the butterfly valve placement block. The clamping plate fixing assembly includes multiple clamping members circumferentially arranged on the outside of the butterfly valve placement block. The clamping members are configured to rotate and move up and down to press against and release the butterfly valve clamping plate.

2. The butterfly valve detection apparatus of claim 1, wherein: The clamping component includes a rotary clamping cylinder, which is disposed on one side of the butterfly valve placement block. The rotary clamping cylinder is configured to be able to lift, move up and down and rotate to clamp or move away from the butterfly valve clamping plate.

3. The butterfly valve detection apparatus of claim 2, wherein: The butterfly valve feeding mechanism includes a lifting cylinder, a lifting plate, and guide rods. The lifting cylinder is located at the lower part of the operating table, and the lifting plate is located above the operating table and connected to the lifting cylinder. Multiple guide rods are provided, each of which is circumferentially arranged on the operating table and located outside the lifting plate. The lifting plate is used to stack butterfly valves to be tested. The lifting cylinder is used to drive the lifting plate to rise and fall so that the robot can grasp the butterfly valves located on the lifting plate.

4. The butterfly valve detection apparatus of claim 3, wherein: The butterfly valve clamping plate is provided with multiple positioning grooves corresponding to the rotary clamping cylinder.

5. The butterfly valve detection apparatus of claim 4, wherein: A pressure plate placement groove is provided on one side of the operating table at the location of the butterfly valve placement block, and the pressure plate placement groove is used to place the butterfly valve pressure plate.

6. The butterfly valve detection apparatus of claim 5, wherein: The edge of the butterfly valve clamping plate has a positioning protrusion protruding outward, and the edge of the clamping plate placement groove has a corresponding positioning notch.

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