Automatic on-line detection device for special valve

Abstract

The utility model relates to valve detection device technical field, and disclose a kind of automation on-line detection device for special valve, including detection table, the top of detection table is fixedly connected with fixed frame, and the top of detection table is provided with air-tightness detection subassembly, the top of detection table is fixedly connected with support frame.The automation on-line detection device for special valve is provided with electric telescopic rod, sliding block, sliding slot, fixed plate, detection head, sealing ring, internal passage, solenoid valve, air pipe, pressure gauge and pressure sensor, the device can be valve air-tightness detection, length detection can also be carried out to it, meet the needs of people, through the work of two electric telescopic rods, can make two detection heads move and block the two ends of valve, carry out air-tightness detection to it, without manual operation, reduce labor intensity, by being provided with sealing ring, strengthen the sealing property, prevent air leakage, simple operation is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of valve testing devices, specifically an automated online testing device for special valves. Background Technology

[0002] Valves are control components in fluid transport systems, with functions such as shut-off, regulation, flow guidance, backflow prevention, pressure stabilization, flow diversion, or overflow pressure relief. Valves used in fluid control systems range from the simplest shut-off valves to various valves used in extremely complex automatic control systems, with a wide variety of types and specifications. After valves are manufactured, their sealing performance and length need to be tested to see if they meet production standards.

[0003] The prior art patent document CN221198840U provides a valve testing device. The valve to be tested can be placed in the placement slot, and the top cylinder is moved forward by rotating the limit handle on the throttle slot. This causes the front end of the sealing sleeve of the fixed sealing second telescopic air pipe and the top cylinder to press the valve to be tested tightly against the opening at the right end of the differential pressure detector. The first air pump and the second air pump are turned on and work simultaneously. The air tightness of the valve is tested by observing the differential pressure detector, which improves the convenience of device installation and testing.

[0004] While the aforementioned existing technology can test the airtightness of valves, it cannot test the length of the valve after the airtightness test. Typically, after the airtightness test, the valve needs to be placed in a separate length testing device. This installation and disassembly of the valve, along with the handling of the valve, increases the labor intensity of workers. Furthermore, the airtightness test requires manual operation, which is labor-intensive and cannot meet people's needs. Therefore, we need an automated online testing device for special valves. Utility Model Content

[0005] The purpose of this invention is to provide an automated online testing device for special valves to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an automated online testing device for special valves, including a testing platform, a fixed frame fixedly connected to the top of the testing platform, an airtightness testing component provided on the top of the testing platform, a support frame fixedly connected to the top of the testing platform, a hydraulic cylinder installed on the outer wall of the support frame, a length testing component provided at one end of the hydraulic cylinder, and a control device provided on one side of the testing platform. The airtightness testing component includes an electric telescopic rod, with a slider fixedly connected to one end of the electric telescopic rod. The inner wall of the testing platform has a groove. A fixing plate is fixedly connected to the outer wall of the slider, and a testing head is fixedly connected to the outer wall of the fixing plate. A sealing ring is fixedly connected to the outer wall of the testing head, and an internal channel is opened on the inner wall of the testing head. A solenoid valve is installed on the inner wall of the internal channel, and an air pipe is installed at one end of the solenoid valve. A pressure gauge is installed on the top of the slider, and a pressure sensor is installed on the inner wall of the slider. The length detection component includes a mounting base, and the inner wall of the mounting base has an elongated groove. A geared motor is mounted on the outer wall of the mounting base, and the output shaft of the geared motor is fixedly connected to a positive and negative threaded rod via a coupling. A movable plate is threadedly connected to the outer wall of the positive and negative threaded rod, and a contact sensor is provided on the inner wall of the movable plate. A displacement sensor is provided at the bottom of the mounting base.

[0007] Preferably, the detection stage forms a sliding structure with a slide groove and a slider, and one end of the slider extends into the slide groove for connection.

[0008] Preferably, there are two electric telescopic rods, and the two electric telescopic rods are symmetrically arranged with the vertical line of the testing platform as the axis of symmetry.

[0009] Preferably, one end of the hydraulic cylinder passes through the support frame and is connected to the mounting base.

[0010] Preferably, the mounting base forms a rotating structure with a geared motor and a positive and negative threaded rod, and one end of the geared motor extends into the mounting base and is connected to the positive and negative threaded rod.

[0011] Preferably, there are two movable plates, and the two movable plates are symmetrically arranged on the positive and negative threaded rods.

[0012] Preferably, the inner wall shape and size of the long groove match the outer wall shape and size of the moving plate, and the inner wall of the long groove fits into the outer wall of the moving plate.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are: First, this utility model includes an electric telescopic rod, a slider, a slide groove, a fixing plate, a detection head, a sealing ring, an internal channel, a solenoid valve, an air pipe, a pressure gauge, and a pressure sensor. This device can perform airtightness testing on valves and also perform length testing, meeting people's needs. By operating two electric telescopic rods, two detection heads can be moved to block both ends of the valve for airtightness testing, eliminating the need for manual operation and reducing labor intensity. The sealing ring enhances the sealing performance and prevents air leakage. The operation is simple and convenient to use.

[0014] Secondly, this utility model is equipped with a mounting base, a long groove, a geared motor, a positive and negative threaded rod, a moving plate, a contact sensor, and a displacement sensor. The geared motor drives the positive and negative threaded rod to rotate, causing the two moving plates to move and contact the two ends of the valve. By setting up the displacement sensor, the distance change between the two moving plates is accurately measured, thereby detecting the length of the valve. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the testing platform and electric telescopic rod of this utility model; Figure 3 This is a schematic diagram of the fixing plate and detection head structure of this utility model; Figure 4 This is a schematic diagram of the mounting base and geared motor structure of this utility model.

[0016] The components include: 1. Testing platform; 2. Fixing frame; 3. Air tightness testing assembly; 301. Electric telescopic rod; 302. Slider; 303. Slide groove; 304. Fixing plate; 305. Testing head; 306. Sealing ring; 307. Internal channel; 308. Solenoid valve; 309. Air pipe; 310. Pressure gauge; 311. Pressure sensor; 4. Support frame; 5. Hydraulic cylinder; 6. Length testing assembly; 601. Mounting base; 602. Long groove; 603. Gear motor; 604. Positive and negative threaded rod; 605. Moving plate; 606. Contact sensor; 607. Displacement sensor; 7. Control equipment. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4An automated online testing device for special valves includes a testing platform 1, a fixed frame 2 fixedly connected to the top of the testing platform 1, an airtightness testing component 3 installed on the top of the testing platform 1, a support frame 4 fixedly connected to the top of the testing platform 1, a hydraulic cylinder 5 mounted on the outer wall of the support frame 4, a length testing component 6 installed at one end of the hydraulic cylinder 5, and a control device 7 installed on one side of the testing platform 1. The airtightness testing component 3 includes an electric telescopic rod 301, a slider 302 fixedly connected to one end of the electric telescopic rod 301, a groove 303 formed on the inner wall of the testing platform 1, a fixed plate 304 fixedly connected to the outer wall of the slider 302, a testing head 305 fixedly connected to the outer wall of the fixed plate 304, and a sealing ring 306 fixedly connected to the outer wall of the testing head 305. The inner wall of the detection head 305 has an internal channel 307, and the inner wall of the internal channel 307 is equipped with a solenoid valve 308. One end of the solenoid valve 308 is equipped with an air pipe 309. The top of the slider 302 is equipped with a pressure gauge 310, and the inner wall of the slider 302 is equipped with a pressure sensor 311. The length detection component 6 includes a mounting base 601, and the inner wall of the mounting base 601 has an elongated groove 602. The outer wall of the mounting base 601 is equipped with a reduction motor 603, and the output shaft of the reduction motor 603 is fixedly connected to a positive and negative threaded rod 604 through a coupling. The outer wall of the positive and negative threaded rod 604 is threadedly connected to a moving plate 605, and the inner wall of the moving plate 605 is equipped with a contact sensor 606. The bottom of the mounting base 601 is equipped with a displacement sensor 607.

[0019] Through the above technical solution, this device can perform airtightness testing and length measurement on valves, meeting people's needs. The operation of two electric telescopic rods 301 allows two detection heads 305 to move and block both ends of the valve for airtightness testing, eliminating the need for manual operation and reducing labor intensity. The sealing ring 306 enhances the sealing performance and prevents air leakage. Operation is simple and convenient. The geared motor 603 drives the positive and negative threaded rods 604 to rotate, causing two moving plates 605 to move and contact both ends of the valve. A displacement sensor 607 accurately measures the distance change between the two moving plates 605, thereby detecting the valve length. This device is controlled by a control device 7, which displays the test results. This device has a high degree of automation in valve testing, facilitating online testing.

[0020] Specifically, the testing table 1 forms a sliding structure with the slide groove 303 and the slider 302, and one end of the slider 302 extends into the slide groove 303 for connection.

[0021] The above technical solution enhances the connection between the testing stage 1, the slide 303, and the slider 302, making it easier for the slider 302 to move more stably within the slide 303 when it moves.

[0022] Specifically, there are two electric telescopic rods 301, and the two electric telescopic rods 301 are symmetrically arranged with the vertical line of the test platform 1 as the axis of symmetry.

[0023] The above technical solution uses two electric telescopic rods 301 to facilitate the movement of the left and right detection heads 305. The left slider 302, the fixing plate 304, and the detection head 305 are all equipped with internal channels 307, while the right detection head 305 and others are not equipped with internal channels 307.

[0024] Specifically, one end of the hydraulic cylinder 5 passes through the support frame 4 and is connected to the mounting base 601.

[0025] Through the above technical solution, when the hydraulic cylinder 5 is working, the mounting base 601 can be raised and lowered.

[0026] Specifically, the mounting base 601 forms a rotating structure with the geared motor 603 and the positive and negative threaded rod 604, and one end of the geared motor 603 extends into the mounting base 601 and is connected to the positive and negative threaded rod 604.

[0027] The above technical solution enhances the connection between the mounting base 601, the geared motor 603, and the positive and negative threaded rod 604. One end of the positive and negative threaded rod 604 is equipped with a bearing, which makes the rotation of the positive and negative threaded rod 604 more stable.

[0028] Specifically, there are two movable plates 605, and the two movable plates 605 are symmetrically arranged on the positive and negative threaded rods 604.

[0029] With the above technical solution, when the positive and negative threaded rods 604 rotate, the two moving plates 605 can move towards each other or away from each other. The moving plates 605 are provided with threaded grooves that match the positive and negative threaded rods 604.

[0030] Specifically, the inner wall shape and size of the long groove 602 match the outer wall shape and size of the movable plate 605, and the inner wall of the long groove 602 fits into the outer wall of the movable plate 605.

[0031] The above technical solution enhances the connection between the long slot 602 and the moving plate 605, making it easier for the moving plate 605 to move more stably within the long slot 602.

[0032] In use, first connect the device to an external power supply. The external power supply provides power to the device. The operator places the valve on the fixed frame 2. The groove on the fixed frame 2 matches the outer wall of the valve. The two fixed frames 2 support the valve. The two electric telescopic rods 301 work to drive the slider 302 to move. The slider 302 moves more stably in the sliding groove 303. The slider 302 drives the fixed plate 304 to move. The fixed plate 304 drives the detection head 305 to move. The two detection heads 305 move and extend into both ends of the valve. The outer wall of the sealing ring 306 on the detection head 305 fits tightly with the inner wall of the valve, enhancing the sealing and preventing air leakage. One end of the air pipe 309 is connected to an air source. By opening the solenoid valve 308, gas enters the internal channel 307 from the air pipe 309 and then enters the valve from the internal channel 307. After a certain amount of gas is input, the solenoid valve 308 is closed. Pressure changes are monitored by a pressure sensor 311. If the pressure drops too quickly or fails to reach a stable state, it may indicate a valve leakage problem. A pressure gauge 310 is installed; changes in the pressure gauge 310 can also indicate a valve leakage problem. After the valve undergoes an airtightness test, the hydraulic cylinder 5 operates, moving the mounting base 601 to a designated position. The reduction motor 603 then operates, driving the forward and reverse threaded rods 604, causing the two moving plates 605 to move towards each other. The movement of the moving plates 605 moves the contact sensor 606. After the contact sensor 606 contacts the valve, the moving plates 605 stop moving. A displacement sensor 607 measures the change in distance between the two moving plates 605, thereby detecting the valve length. This device can perform both airtightness and length checks on valves, meeting various needs. This completes the entire process. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated online inspection device for special valves, comprising an inspection table (1), characterized in that: The top of the testing platform (1) is fixedly connected to a fixed frame (2), and the top of the testing platform (1) is provided with an airtightness testing component (3). The top of the testing platform (1) is fixedly connected to a support frame (4), and a hydraulic cylinder (5) is installed on the outer wall of the support frame (4). A length testing component (6) is provided at one end of the hydraulic cylinder (5), and a control device (7) is provided on one side of the testing platform (1). The airtightness testing component (3) includes an electric telescopic rod (301), and a slider (302) is fixedly connected to one end of the electric telescopic rod (301). The inner wall of the testing platform (1) is provided with a sliding groove (303). A fixing plate (304) is fixedly connected to the outer wall of the slider (302), and a testing head (305) is fixedly connected to the outer wall of the fixing plate (304). A sealing ring (306) is fixedly connected to the outer wall of the testing head (305), and an internal channel (307) is provided on the inner wall of the testing head (305). A solenoid valve (308) is provided on the inner wall of the internal channel (307), and an air pipe (309) is provided at one end of the solenoid valve (308). A pressure gauge (310) is provided on the top of the slider (302), and a pressure sensor (311) is provided on the inner wall of the slider (302). The length detection component (6) includes a mounting base (601), and the inner wall of the mounting base (601) is provided with an elongated groove (602). A geared motor (603) is mounted on the outer wall of the mounting base (601), and the output shaft of the geared motor (603) is fixedly connected to a threaded rod (604) via a coupling. A movable plate (605) is threadedly connected to the outer wall of the threaded rod (604), and a contact sensor (606) is provided on the inner wall of the movable plate (605). A displacement sensor (607) is provided at the bottom of the mounting base (601).

2. The automated online inspection device for special valves according to claim 1, characterized in that: The detection platform (1) forms a sliding structure with the slide groove (303) and the slider (302), and one end of the slider (302) extends into the slide groove (303) for connection.

3. The automated online inspection device for special valves according to claim 1, characterized in that: The number of electric telescopic rods (301) is two, and the two electric telescopic rods (301) are symmetrically arranged with the vertical line of the test platform (1) as the axis of symmetry.

4. The automated online inspection device for special valves according to claim 1, characterized in that: One end of the hydraulic cylinder (5) passes through the support frame (4) and is connected to the mounting base (601).

5. The automated online inspection device for special valves according to claim 1, characterized in that: The mounting base (601) forms a rotating structure with the geared motor (603) and the positive and negative threaded rod (604), and one end of the geared motor (603) extends into the mounting base (601) and connects with the positive and negative threaded rod (604).

6. The automated online inspection device for special valves according to claim 1, characterized in that: The number of movable plates (605) is two, and the two movable plates (605) are symmetrically arranged on the positive and negative threaded rods (604).

7. The automated online inspection device for special valves according to claim 1, characterized in that: The inner wall shape and size of the long groove (602) match the outer wall shape and size of the movable plate (605), and the inner wall of the long groove (602) fits against the outer wall of the movable plate (605).

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