Detection device for stop valve production

Abstract

The utility model discloses a detection device for production of a stop valve, which comprises a bottom plate, the upper part of the bottom plate is connected with a bottom sealing groove through a supporting column, a lower sealing block matched with the stop valve is arranged in the bottom sealing groove, an air pressure detector is arranged at the top of the lower sealing block, a mounting frame is arranged at the top of the bottom plate, and the air pressure detector is arranged on the mounting frame. And an air pressure meter electrically connected with the air pressure detector is mounted on the outer side of the mounting frame, two sets of fixing plates are mounted at the top of the mounting frame, rotating rods are rotationally arranged on the inner sides of the fixing plates, two sets of gears are mounted on the outer sides of the rotating rods, and the gears are meshed with the rack plates. The detection device for production of the stop valve aims to solve the problems that an existing detection device for air tightness of the stop valve judges the air tightness of the stop valve by observing whether a paper strip shakes or not, the requirement for the concentration of workers in the observation process is high, and the situation of missing inspection is likely to happen. The upper portion of the bottom plate is connected with the bottom sealing groove through the supporting columns.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically a testing device for gate valve production. Background Technology

[0002] A gate valve, also known as a stop valve, is a type of forced-seal valve primarily used for cutting off, regulating, and throttling various types of fluids. When the valve is closed, pressure must be applied to the valve disc to ensure no leakage at the sealing surface. Gate valves have short opening and closing strokes and require significant operating force, making them particularly suitable for applications requiring frequent operation.

[0003] A search revealed existing technology, such as CN210243092U, a high-pressure airtightness testing device for a gate valve. This device includes a housing and a hydraulic cylinder. The top of the housing is fixedly connected to the bottom of the hydraulic cylinder, and a hydraulic telescopic rod is fixedly connected to the bottom of the hydraulic cylinder. A support plate is fixedly connected between the two sides of the bottom of the housing's inner wall. An annular frame is fixedly connected to the top of the support plate at one end of the hydraulic telescopic rod's output shaft. This invention relates to the field of valve testing technology. This high-pressure airtightness testing device for a gate valve, with its annular frame fixedly connected to the top of the support plate at one end of the hydraulic telescopic rod's output shaft, provides better sealing of the gate valve's port, preventing gas leakage and improving the accuracy of the test results. The support rods fixedly connected to the top and bottom of the vertical plate on the side away from the inner wall of the housing improve the stability of the gate valve and facilitate observation of the test results, making it more convenient to use.

[0004] In summary, existing gate valve airtightness testing devices are convenient for observing test results and are easier to use. However, these devices judge the airtightness of the gate valve by observing whether the paper strip shakes, which requires a high level of concentration from the operator and is prone to omissions. Therefore, a testing device for gate valve production is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a testing device for gate valve production, in order to solve the problem mentioned in the background art that the existing gate valve airtightness testing device judges the airtightness of the gate valve by observing whether the paper strip shakes. This method requires a high degree of concentration from the operator and is prone to omissions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a testing device for the production of a stop valve, comprising a base plate, the base plate being connected to a bottom sealing groove via a support column, and a lower sealing block matching the stop valve being disposed inside the bottom sealing groove, a pressure detector being installed on the top of the lower sealing block, a mounting frame being disposed on the top of the base plate, and a pressure gauge electrically connected to the pressure detector being installed on the outside of the mounting frame, two sets of fixing plates being installed on the top of the mounting frame, and a rotating rod being rotatably disposed on the inner side of the fixing plate, two sets of gears being installed on the outer side of the rotating rod, and the gears meshing with a rack plate, one end of the rack plate penetrating to the inner side of the mounting frame and connected to a lifting plate, and the lower part of the lifting plate being connected to a top sealing groove via symmetrically arranged connecting rods, an upper sealing block matching the stop valve being disposed inside the top sealing groove, and a pressurizing mechanism being installed inside the upper sealing block.

[0007] Preferably, the top of the base plate is connected to the valve placement ring by symmetrically arranged support arms.

[0008] The above technical solution facilitates the support of the shut-off valve.

[0009] Preferably, a sealing layer is fixedly provided on the outer side of both the lower sealing block and the upper sealing block.

[0010] The above technical solution facilitates improved sealing.

[0011] Preferably, one end of the rotating rod is connected to the drive motor, and the drive motor is mounted on the outside of a set of fixed plates.

[0012] The above technical solution facilitates the rotation of the rotating rod.

[0013] Preferably, the mounting frame is provided with two sets of vertical limiting slide rods on its inner side, and the vertical limiting slide rods are slidably connected to the lifting plate.

[0014] The above technical solutions improve the stability of the lifting platform's movement.

[0015] Preferably, the pressurization mechanism includes an air pump, which is installed outside the top sealing groove and connected to an air pipe disposed inside the upper sealing block.

[0016] The above technical solution facilitates pressurization inside the shut-off valve.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This testing device for gate valve production solves the problem that existing gate valve airtightness testing devices judge the airtightness of the gate valve by observing whether a paper strip shakes, which requires a high degree of concentration from the operator and is prone to omissions. This device connects the bottom sealing groove to the base plate via a support column, and a lower sealing block matching the gate valve is installed inside the bottom sealing groove. A pressure detector is installed on the top of the lower sealing block. A mounting bracket is installed on the top of the base plate, and a pressure gauge electrically connected to the pressure detector is installed on the outside of the mounting bracket. Two sets of fixing plates are installed on the top of the mounting bracket. A rotating rod is rotatably mounted on the inner side of the fixed plate. Two sets of gears are installed on the outer side of the rotating rod, and the gears mesh with the rack plate. One end of the rack plate passes through the inner side of the mounting frame and connects to the lifting plate. The lower part of the lifting plate is connected to the top sealing groove through symmetrically arranged connecting rods. The top sealing groove is equipped with an upper sealing block that matches the stop valve. The upper sealing block is equipped with a pressurizing mechanism. In use, the two ends of the stop valve are sealed through the bottom sealing groove and the top sealing groove. After sealing, the pressurizing mechanism pressurizes the stop valve. After pressurization, the air pressure inside the stop valve is detected by an air pressure detector. If the air pressure inside the stop valve continues to decrease, it indicates that there is a leak in the stop valve. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front cross-sectional structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 This is a schematic diagram of the internal structure of the bottom sealing groove of this utility model.

[0022] In the diagram: 1. Base plate; 101. Support column; 102. Bottom sealing groove; 2. Shut-off valve; 3. Lower sealing block; 301. Air pressure detector; 4. Mounting bracket; 401. Air pressure gauge; 5. Fixing plate; 501. Rotating rod; 5011. Drive motor; 502. Gear; 503. Rack plate; 504. Lifting plate; 505. Connecting rod; 506. Top sealing groove; 5061. Upper sealing block; 6. Pressurization mechanism; 601. Air pump; 602. Air pipe; 7. Support arm; 701. Valve placement ring; 8. Sealing layer; 9. Vertical limit slide bar; 10. Limiting stop plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a testing device for the production of a stop valve, wherein the bottom plate 1 is connected to the bottom sealing groove 102 via a support column 101, and the bottom sealing groove 102 is provided with a lower sealing block 3 that matches the stop valve 2, and a mounting bracket 4 is provided on the top of the bottom plate 1.

[0025] In a further embodiment, the top of the base plate 1 is connected to the valve placement ring 701 by symmetrically arranged support arms 7, and the valve placement ring 701 can provide a certain support for the shut-off valve 2.

[0026] In a further embodiment, a limiting plate 10 is provided on the side of the mounting bracket 4 near the handle of the shut-off valve 2. The limiting plate 10 is provided to prevent the handle of the shut-off valve 2 from rotating and to limit the handle of the shut-off valve 2. The limiting plate 10 includes a plate, and one side of the plate is connected to the mounting bracket 4 through an electric telescopic rod.

[0027] Specifically, a pressure detector 301 is installed on the top of the lower sealing block 3. The pressure detector 301 is model CYYZ11. A pressure gauge 401 electrically connected to the pressure detector 301 is installed on the outside of the mounting bracket 4. The pressure gauge 401 can be referenced to model SWY6519.

[0028] Specifically, two sets of fixing plates 5 are installed on the top of the mounting frame 4, and a rotating rod 501 is rotatably installed on the inner side of the fixing plate 5. One end of the rotating rod 501 is connected to a drive motor 5011, and the drive motor 5011 is installed on the outer side of one set of fixing plates 5. Two sets of gears 502 are installed on the outer side of the rotating rod 501, and the gears 502 mesh with a rack plate 503. One end of the rack plate 503 passes through the inner side of the mounting frame 4 and is connected to the lifting plate 504. Two sets of vertical limiting slide rods 9 are provided on the inner side of the mounting frame 4, and the vertical limiting slide rods 9 are slidably connected to the lifting plate 504. By setting the vertical limiting slide rods 9, the movement direction of the lifting plate 504 can be controlled. To improve the stability of the lifting plate 504 during movement, the lifting plate 504 is connected to the top sealing groove 506 via symmetrically arranged connecting rods 505. The top sealing groove 506 is equipped with an upper sealing block 5061 that matches the shut-off valve 2. The upper sealing block 5061 is equipped with a pressurizing mechanism 6, which includes an air pump 601. The air pump 601 is a 550WX2-50L model and is installed on the outside of the top sealing groove 506. The air pump 601 is connected to an air pipe 602 installed inside the upper sealing block 5061. The air pipe 602 is equipped with a matching valve.

[0029] In use, one end of the shut-off valve 2 is inserted into the bottom sealing groove 102. At this time, the lower sealing block 3 can block and seal the flow port of one end of the shut-off valve 2. Then, the drive motor 5011 is turned on. Under the action of the drive motor 5011, the rotating rod 501 drives the gear 502 to rotate. The rotation of the gear 502 drives the rack plate 503 to move. Under the action of the rack plate 503, the lifting plate 504 drives the top sealing groove 506 to move down through the connecting rod 505, so that the upper sealing block 5061 is inserted into the flow port of the other end of the shut-off valve 2, thereby sealing the flow port of the shut-off valve 2. Meanwhile, the bottom sealing groove 102 and the top sealing groove 506 can further improve the sealing effect. After sealing, the air pump 601 is turned on. The air pump 601 pressurizes the inside of the shut-off valve 2 through the air pipe 602. After pressurization, the air pump 601 and the valve in the air pipe 602 are closed. Then, the air pressure inside the shut-off valve 2 is detected by the air pressure detector 301. The air pressure detector 301 transmits the detected data to the air pressure gauge 401. The air pressure inside the shut-off valve 2 can be understood through the air pressure gauge 401. If the air pressure inside the shut-off valve 2 continues to decrease, it indicates that there is a leak in the shut-off valve 2.

[0030] To further explain, a sealing layer 8 is fixedly provided on the outer side of both the lower sealing block 3 and the upper sealing block 5061. By providing the sealing layer 8, the sealing performance of the lower sealing block 3 and the upper sealing block 5061 can be further improved.

[0031] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing device for the production of gate valves, comprising a base plate (1), characterized in that: The base plate (1) is connected to the bottom sealing groove (102) via a support column (101) above it. The bottom sealing groove (102) contains a lower sealing block (3) that matches the shut-off valve (2). A pressure detector (301) is mounted on the top of the lower sealing block (3). A mounting bracket (4) is mounted on the top of the base plate (1), and a pressure gauge (401) electrically connected to the pressure detector (301) is mounted on the outside of the mounting bracket (4). Two sets of fixing plates (5) are mounted on the top of the mounting bracket (4), and a rotating rod is rotatably mounted on the inner side of each fixing plate (5). 501), two sets of gears (502) are installed on the outside of the rotating rod (501), and the gears (502) mesh with the rack plate (503). One end of the rack plate (503) passes through the inner side of the mounting frame (4) and is connected to the lifting plate (504). The lower part of the lifting plate (504) is connected to the top sealing groove (506) through symmetrically arranged connecting rods (505). The top sealing groove (506) is provided with an upper sealing block (5061) that matches the stop valve (2), and a pressure boosting mechanism (6) is installed inside the upper sealing block (5061).

2. The testing device for gate valve production according to claim 1, characterized in that: The top of the base plate (1) is connected to the valve placement ring (701) by symmetrically arranged support arms (7).

3. The testing device for gate valve production according to claim 1, characterized in that: A sealing layer (8) is fixedly provided on the outer side of both the lower sealing block (3) and the upper sealing block (5061).

4. The testing device for gate valve production according to claim 1, characterized in that: One end of the rotating rod (501) is connected to the drive motor (5011), and the drive motor (5011) is mounted on the outside of a set of fixed plates (5).

5. The testing device for gate valve production according to claim 1, characterized in that: The mounting bracket (4) is provided with two sets of vertical limiting slide rods (9) on its inner side, and the vertical limiting slide rods (9) are slidably connected to the lifting plate (504).

6. The testing device for gate valve production according to claim 1, characterized in that: The pressurization mechanism (6) includes an air pump (601), which is installed outside the top sealing groove (506). The air pump (601) is connected to an air pipe (602) provided inside the upper sealing block (5061).

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