Anti-conduction while-drilling multi-time opening and closing bypass valve

Abstract

The utility model relates to bypass valve technical field discloses prevent guiding and pass through many times open and close bypass valve of drilling, including valve body, the valve body inner chamber upper end is equipped with anti -impact component, the anti -impact component includes the mounting plate of inserting in the valve body inner chamber upper end, the mounting plate both sides are equipped with two groups of guard board that are mutually symmetrical, the mounting plate lower extreme is equipped with the filter plate fixedly. When fluid passes through the upper end of valve body, fluid first and guard board contact, guard board receives the impact of fluid, and guard board upper end and mounting plate articulate, thereby guard board rotates a certain angle along with mounting plate upper end downward, guard board drives the sliding of moving rod along with the sleeve middle end, and moving rod compresses first spring, can buffer the impact force that guard board received under the reverse spring force of first spring, under the buffering effect of guard board, the flow rate of fluid reduces, reduces the energy of fluid shock wave, avoids the damage of valve body to receive greater impact.

Description

Technical Field

[0001] This utility model relates to the field of bypass valve technology, and in particular to a bypass valve that prevents multiple opening and closing during drilling. Background Technology

[0002] A bypass valve is a special valve installed in a piping system. Its core function is to provide a bypass passage for fluid to bypass the main processing unit, such as a filter or heat exchanger. When the main equipment needs to be isolated due to maintenance, blockage, or excessive pressure difference, the bypass valve can open to allow fluid to pass directly through, ensuring continuous system operation and avoiding downtime losses. It is opened and closed manually or automatically and is commonly used in scenarios that require maintaining a stable flow rate or pressure, such as heating systems, chemical processes, and hydraulic devices.

[0003] Existing bypass valves do not have anti-surge function. When fluids switch suddenly or pressure changes abruptly, water hammer or airflow impact will occur, causing severe vibration of pipelines, damage to valve components, and even leakage at the connection, shortening equipment life, increasing maintenance costs, and in severe cases, causing system shutdown or safety accidents. Utility Model Content

[0004] Given that existing bypass valves do not have anti-impact functions, water hammer or airflow impact will occur when fluids switch suddenly or pressure changes abruptly, leading to severe pipeline vibration, damage to valve components, and even leakage at the connection, shortening equipment life, increasing maintenance costs, and in severe cases, causing system shutdown or safety accidents, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bypass valve for preventing multiple opening and closing during drilling, comprising a valve body, an anti-impact component provided at the upper end of the valve body cavity, the anti-impact component including a mounting plate inserted into the upper end of the valve body cavity, two sets of symmetrical protective plates on both sides of the mounting plate, a filter plate fixedly provided at the lower end of the mounting plate, a moving rod provided at the lower end of the protective plate, a sleeve sleeved on the outer wall of the moving rod, a first spring inserted in the inner cavity of the sleeve, and a valve assembly inserted at the lower end of the valve body cavity below the anti-impact component. The valve assembly includes a fixing plate fixedly inserted into the inner wall of the lower end of the valve body, a valve core movably inserted into the middle of the fixing plate, a valve stem at the lower end of the valve core, a telescopic component at the lower end of the valve stem, a second spring sleeved on the outer wall of the telescopic component, two sets of first toothed rods symmetrically arranged on the outer wall of the valve stem, a gear on one side of the first toothed rod, a second toothed rod on the side of the gear away from the first toothed rod, a slide rod inserted into the middle of the second toothed rod, a third spring at the upper end of the second toothed rod, and liquid outlets on both sides of the lower end of the valve body.

[0006] As a preferred embodiment of the anti-conduction drilling multiple opening and closing bypass valve of this utility model, the valve body has slots on both sides of the upper inner wall that cooperate with the mounting plate. The two ends of the mounting plate are movably inserted into the slots, and the slots are movably inserted with limit pins at the upper end of the mounting plate. The lower end of the limit pin abuts against the upper end of the mounting plate, and the upper end of the limit pin is threaded with a limit bolt. The valve body has a threaded hole at the upper end that cooperates with the limit bolt.

[0007] As a preferred embodiment of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model, the upper two sides of the protective plate and the upper end of the mounting plate are hinged, and the filter plate is movably inserted into the inner cavity of the upper end of the valve body.

[0008] As a preferred embodiment of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model, the upper end of the moving rod and the lower end of the protective plate are hinged together, and the lower end of the moving rod is movably inserted into the middle end of the casing.

[0009] As a preferred embodiment of the anti-conduction drilling multiple opening and closing bypass valve of this utility model, the valve core is movably inserted into the middle of the fixed plate, the upper and lower ends of the second spring are respectively fixedly connected to the lower end of the valve stem and the bottom end of the valve body, the telescopic end of the telescopic component is fixedly connected to the lower end of the valve stem, and the lower end of the telescopic component is fixedly connected to the valve body.

[0010] As a preferred embodiment of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model, the gear meshes with the first rack and the second rack respectively.

[0011] As a preferred embodiment of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model, the slide rod is movably inserted into the middle end of the second toothed rod, the lower end of the slide rod is fixedly connected to the bottom end of the valve body, and the upper and lower ends of the third spring are respectively fixedly connected to the bottom end of the fixed plate and the upper end of the second toothed rod.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: In this invention, when the fluid passes through the upper end of the valve body, the fluid first contacts the protective plate, which is impacted by the fluid. The upper end of the protective plate is hinged to the mounting plate, causing the protective plate to rotate downwards at a certain angle along the upper end of the mounting plate. The protective plate drives the moving rod to slide along the middle end of the sleeve, and the moving rod compresses the first spring. Under the reverse elastic force of the first spring, the impact force on the protective plate can be buffered. Under the buffering effect of the protective plate, the fluid velocity is reduced, the energy of the fluid shock wave is reduced, and the valve body is prevented from being damaged by a large impact.

[0013] 2. In this utility model, the fluid passes through the upper end of the fixed plate. Under the pressure of the fluid, the valve core moves downward, and the fluid flows out through the middle of the fixed plate. During the downward movement of the valve core under impact, the valve stem drives the telescopic assembly to contract, the second spring is compressed, and the valve stem drives the first toothed rod to move downward. The first toothed rod drives the gear to rotate, and the gear drives the second toothed rod to move upward along the slide bar. The second toothed rod compresses the third spring. Under the opposing elastic forces of the second and third springs, the impact on the valve core can be buffered, preventing the valve core from being broken or damaged by a large impact. This protects the fixed plate and the valve core and extends the service life of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model. Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model. Figure 3 This is a three-dimensional cross-sectional view of the anti-impact component of the anti-conduction bypass valve that opens and closes multiple times during drilling, as described in this utility model. Figure 4 This is a three-dimensional structural diagram of the valve body of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model. Figure 5 This is a three-dimensional structural diagram of the valve assembly of the anti-conduction bypass valve that opens and closes multiple times during drilling according to this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Valve body; 2. Anti-shock assembly; 21. Mounting plate; 22. Protective plate; 23. Filter plate; 24. Moving rod; 25. Sleeve; 26. First spring; 27. Limiting pin; 28. Limiting bolt; 3. Valve assembly; 301. Fixing plate; 302. Valve core; 303. Valve stem; 304. Second spring; 305. Telescopic assembly; 306. First gear; 307. Gear; 308. Second gear; 309. Slide rod; 310. Third spring; 4. Liquid outlet. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0017] Reference Figures 1-4This is the first embodiment of the present invention, which provides a bypass valve for preventing multiple opening and closing during drilling. It includes a valve body 1, an anti-impact component 2 at the upper end of the inner cavity of the valve body 1, an anti-impact component 2 including a mounting plate 21 inserted into the upper end of the inner cavity of the valve body 1, two sets of protective plates 22 symmetrically arranged on both sides of the mounting plate 21, a filter plate 23 fixedly arranged at the lower end of the mounting plate 21, a moving rod 24 at the lower end of the protective plate 22, a sleeve 25 sleeved on the outer wall of the moving rod 24, a first spring 26 inserted in the inner cavity of the sleeve 25, and liquid outlets 4 opened on both sides of the lower end of the valve body 1.

[0018] The valve body 1 has slots on both sides of the upper inner wall that mate with the mounting plate 21. The two ends of the mounting plate 21 are movably inserted into the slots, and the slots are located on the upper end of the mounting plate 21 with a limiting pin 27. The lower end of the limiting pin 27 abuts against the upper end of the mounting plate 21, and the upper end of the limiting pin 27 is threaded with a limiting bolt 28. The upper end of the valve body 1 has a threaded hole that mates with the limiting bolt 28.

[0019] The upper sides of the protective plate 22 and the upper end of the mounting plate 21 are hinged, and the filter plate 23 is movably inserted into the inner cavity of the upper end of the valve body 1.

[0020] The upper end of the movable rod 24 is hinged to the lower end of the protective plate 22, and the lower end of the movable rod 24 is movably inserted into the middle of the sleeve 25.

[0021] When the fluid passes through the upper end of the valve body 1, it first contacts the protective plate 22. The protective plate 22 is impacted by the fluid, and since its upper end is hinged to the mounting plate 21, the protective plate 22 rotates downwards along the upper end of the mounting plate 21 at a certain angle. The protective plate 22 drives the moving rod 24 to slide along the middle end of the sleeve 25. The moving rod 24 compresses the first spring 26, and under the reverse elastic force of the first spring 26, the impact force on the protective plate 22 can be buffered. Under the buffering effect of the protective plate 22, the fluid velocity decreases, reducing the energy of the fluid shock wave and preventing the valve body 1 from being damaged by a large impact. At the same time, the fluid passes through the filter plate 23, which serves to filter and prevent clogging. The function is to filter impurities and particulate matter in the fluid. After using one end of the valve body 1 for a period of time, the limit plug 28 is unscrewed from the threaded hole at the upper end of the valve body 1. The limit pin 27 is pulled out from the upper end of the slot along the slot, thereby releasing the limit pin 27 from limiting the mounting plate 21. The mounting plate 21 is pulled upward along the slot, and both ends of the mounting plate 21 slide upward along the slot, moving the mounting plate 21 out of the slot. Thus, the filter plate 23 is moved out of the valve body 1 along with the mounting plate 21. This makes it convenient for the staff to remove the impurities and particulate matter deposited on the filter plate 23, and also facilitates the cleaning and maintenance of the filter plate 23, preventing the filter plate 23 from clogging and increasing the service life of the filter plate 23. Example 2

[0022] Reference Figure 1-5This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a valve assembly 3 is inserted into the inner cavity of the valve body 1 at the lower end of the anti-impact component 2. The valve assembly 3 includes a fixing plate 301 fixedly inserted into the inner wall of the lower end of the valve body 1. A valve core 302 is movably inserted into the middle of the fixing plate 301. A valve stem 303 is provided at the lower end of the valve core 302. A telescopic component 305 is provided at the lower end of the valve stem 303. A second spring 304 is sleeved on the outer wall of the telescopic component 305. Two sets of first toothed rods 306 are provided on the outer wall of the valve stem 303. A gear 307 is provided on one side of the first toothed rod 306. A second toothed rod 308 is provided on the side of the gear 307 away from the first toothed rod 306. A slide rod 309 is inserted into the middle of the second toothed rod 308. A third spring 310 is provided at the upper end of the second toothed rod 308.

[0023] The valve core 302 is movably inserted into the middle of the fixed plate 301. The upper and lower ends of the second spring 304 are fixedly connected to the lower end of the valve stem 303 and the bottom end of the valve body 1, respectively. The telescopic component 305 is fixedly connected to the lower end of the valve stem 303 at its telescopic end and to the valve body 1 at its lower end.

[0024] Gear 307 meshes with first rack 306 and second rack 308 respectively.

[0025] The slide bar 309 is movably inserted into the middle of the second toothed rod 308. The lower end of the slide bar 309 is fixedly connected to the bottom end of the valve body 1. The upper and lower ends of the third spring 310 are fixedly connected to the bottom end of the fixing plate 301 and the upper end of the second toothed rod 308, respectively.

[0026] After the fluid passes through the initial buffer of the anti-impact component 2, the fluid passes through the upper end of the fixed plate 301. Under the pressure of the fluid, the valve core 302 moves downward, and the fluid flows out through the middle of the fixed plate 301. During the downward movement of the valve core 302 under impact, the valve stem 303 drives the telescopic component 305 to contract, the second spring 304 is compressed, and the valve stem 303 drives the first gear 306 to move downward. The first gear 306 drives the gear 307 to rotate, and the gear 307 drives the second gear 308 to move upward along the slide bar 309. The second gear 308 compresses the third spring 310. Under the opposing elastic force of the second spring 304 and the third spring 310, the impact on the valve core 302 can be buffered, preventing the valve core 302 from being broken due to a large impact. This protects the fixed plate 301 and the valve core 302 and extends the service life of the device.

[0027] The remaining structure is the same as that in Example 1. It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bypass valve for preventing multiple opening and closing during drilling, comprising a valve body (1), characterized in that: An anti-impact assembly (2) is provided at the upper end of the inner cavity of the valve body (1). The anti-impact assembly (2) includes a mounting plate (21) inserted into the upper end of the inner cavity of the valve body (1). Two sets of protective plates (22) are provided on both sides of the mounting plate (21). A filter plate (23) is fixedly provided at the lower end of the mounting plate (21). A moving rod (24) is provided at the lower end of the protective plate (22). A sleeve (25) is sleeved on the outer wall of the moving rod (24). A first spring (26) is inserted in the inner cavity of the sleeve (25). A valve assembly (3) is inserted at the lower end of the anti-impact assembly (2) in the inner cavity of the valve body (1). The valve assembly (3) includes a fixing plate (301) fixedly inserted into the inner wall of the lower end of the valve body (1). (301) A valve core (302) is inserted in the middle. A valve stem (303) is provided at the lower end of the valve core (302). A telescopic component (305) is provided at the lower end of the valve stem (303). A second spring (304) is sleeved on the outer wall of the telescopic component (305). Two sets of first toothed rods (306) are provided on the outer wall of the valve stem (303). A gear (307) is provided on one side of the first toothed rod (306). A second toothed rod (308) is provided on the side of the gear (307) away from the first toothed rod (306). A slide rod (309) is inserted in the middle of the second toothed rod (308). A third spring (310) is provided at the upper end of the second toothed rod (308). Liquid outlets (4) are opened on both sides of the lower end of the valve body (1).

2. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The valve body (1) has slots on both sides of the upper inner wall that cooperate with the mounting plate (21). The mounting plate (21) is movably inserted into the slots at both ends. The slots are located at the upper end of the mounting plate (21) and a limiting pin (27) is movably inserted. The lower end of the limiting pin (27) abuts against the upper end of the mounting plate (21). The upper end of the limiting pin (27) is threaded with a limiting bolt (28). The valve body (1) has a threaded hole at the upper end that cooperates with the limiting bolt (28).

3. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The upper sides of the protective plate (22) and the upper end of the mounting plate (21) are hinged, and the filter plate (23) is movably inserted into the inner cavity of the upper end of the valve body (1).

4. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The upper end of the movable rod (24) and the lower end of the protective plate (22) are hinged together, and the lower end of the movable rod (24) is movably inserted into the middle end of the sleeve (25).

5. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The valve core (302) is movably inserted into the middle of the fixed plate (301). The upper and lower ends of the second spring (304) are fixedly connected to the lower end of the valve stem (303) and the bottom end of the valve body (1), respectively. The telescopic end of the telescopic component (305) is fixedly connected to the lower end of the valve stem (303), and the lower end of the telescopic component (305) is fixedly connected to the valve body (1).

6. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The gear (307) meshes with the first rack (306) and the second rack (308) respectively.

7. The bypass valve for preventing multiple opening and closing during drilling as described in claim 1, characterized in that: The slide rod (309) is movably inserted into the middle of the second toothed rod (308). The lower end of the slide rod (309) is fixedly connected to the bottom end of the valve body (1). The upper and lower ends of the third spring (310) are fixedly connected to the bottom end of the fixing plate (301) and the upper end of the second toothed rod (308), respectively.

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