Stainless steel cast valve

Abstract

The utility model discloses a stainless steel casting valve relates to valve field, including valve body, the inside rotation of valve body is installed with the valve core, and the top fixed mounting of valve core has the installing rod, and installing rod and valve body realize the rotation connection, and the inside of installing rod is rotatably installed with valve rod through the installation component, the utility model discloses a screw rod is made the screw rod rotates in the screw groove inside and moves simultaneously when the screw rod moves away from the joint groove, and installing rod and valve rod can realize the split, and vice versa then installing rod and valve rod connect successfully, and the short rod is located in the screw groove inside, and the both ends of square groove present the closed state, like this guaranteeing when the screw rod rotates smoothly to the screw rod of torsion screw rod, avoid the screw rod and the screw groove separation, avoid the installation of valve rod to be affected by the loss of screw rod, and reduce the installation cost, and the initial state of dial is located in annular groove no.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically to a stainless steel cast valve. Background Technology

[0002] Cast valves are valves manufactured through a casting process. This involves melting metal into a liquid that meets specific requirements, pouring it into a mold, and then cooling, solidifying, and cleaning it to form a predetermined shape. Stainless steel cast valves are valves made of stainless steel and manufactured through a casting process. They are used in industrial pipeline systems to control the transport and flow of fluids.

[0003] The existing valves still have the following problems when in use: the valve stem of the existing valve may be damaged and difficult to replace after a long period of use. If the damaged valve stem is still embedded in the valve, it may cause the valve to be scrapped, which will affect the normal use of the pipeline.

[0004] Therefore, it is necessary to invent a stainless steel casting valve to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a stainless steel cast valve to solve the problem mentioned in the background art that the valve stem of existing valves may be damaged and difficult to replace after long-term use. Such damaged valve stems may remain embedded in the valve, which may lead to the valve being scrapped and thus affect the normal use of the pipeline.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel casting valve, comprising a valve body, a valve core rotatably mounted inside the valve body, and an mounting rod fixedly mounted on the top of the valve core, the mounting rod being rotatably connected to the valve body, and a valve stem movably mounted inside the mounting rod via an mounting assembly, the outer ring of the valve stem being movably fitted with a dial via a linkage assembly, making the entire valve stem replaceable, preventing valve stem breakage from affecting the opening and closing of the valve, and furthermore, the rotation of the dial is subject to limiting factors, thus preventing accidental opening or closing of the valve.

[0007] Preferably, the mounting assembly includes a mounting groove disposed inside the mounting rod, and the interior of the mounting groove is connected to the lower end of the valve stem via a threaded rod. Furthermore, the threaded rod is threadedly connected to the threaded groove on the mounting rod and the snap-fit ​​groove on the valve stem, thus ensuring that the valve stem can be replaced later and preventing damage to the valve stem from affecting the normal opening and closing of the valve body.

[0008] Preferably, the mounting assembly further includes an annular groove 1 disposed inside the threaded groove and communicating with the threaded groove, and an annular block is rotatably mounted inside the annular groove 1, and a short rod fixedly mounted on the inner wall of the annular block is slidably connected to the square groove provided on the threaded rod, thus ensuring that the threaded rod rotates smoothly when twisted, while preventing the threaded rod from separating from the threaded groove.

[0009] Preferably, the linkage component includes a limiting block fixedly connected to the inner annular wall of the dial, and the limiting block is slidably connected to the annular groove and the vertical groove provided inside the valve stem. The annular groove and the vertical groove are connected and arranged in communication. In this way, the dial can only drive the valve stem to rotate to realize the opening and closing operation of the valve body when the limiting block matches the vertical groove, thus avoiding accidental opening of the valve body.

[0010] Preferably, the linkage component further includes a small circular sleeve disposed on the outer ring of the valve stem, and a large circular sleeve is rotatably mounted on the outer ring of the small circular sleeve. A spring is connected between the large circular sleeve and the dial, and the spring is movably mounted on the outer ring of the valve stem. In this way, when the dial is turned, the spring and the large circular sleeve rotate synchronously, pressing down the dial to make the limiting block descend and match the vertical groove, thereby realizing the rotation of the valve stem. Subsequently, the spring force pushes up the dial and drives the limiting block back into the second annular groove. At this time, turning the dial will not drive the valve stem to rotate.

[0011] Preferably, the linkage component further includes a baffle fixedly connected to the lower end wall of the dial, and the baffle is annularly fitted on the outer ring of the spring, and the inner wall of the baffle is in contact with the outer ring wall of the large circular sleeve to achieve a movable connection, and the baffle protects the spring.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model causes the threaded rod to rotate inside the thread groove by torsion, and its position moves at the same time. When the threaded rod moves away from the snap-fit ​​groove, the mounting rod and valve rod can be separated. Conversely, the mounting rod and valve rod are successfully connected. At the same time, the short rod is located inside the thread groove, and the two ends of the square groove are closed. This ensures that the threaded rod rotates smoothly while torsion, and avoids the threaded rod from separating from the thread groove. This prevents the loss of the threaded rod from affecting the installation of the valve rod and reduces the installation cost. 2. Pressing down the dial causes the limit block to descend and match the vertical groove, thereby enabling the valve stem to rotate. Subsequently, the spring force pushes the dial up, causing the limit block to return to the inside of the annular groove. At this time, rotating the dial will not cause the valve stem to rotate, thus avoiding accidental opening or closing of the valve. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is an exploded view of the connection structure between the mounting rod and the valve stem of this utility model; Figure 3 This is an exploded view of the internal structure of the mounting rod of this utility model (partially cut out). Figure 4 This is an exploded view of the internal structure of the valve stem of this utility model; Figure 5 This is a three-dimensional view of the valve stem structure of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Valve body; 2. Valve core; 3. Mounting rod; 4. Valve stem; 5. Mounting assembly; 501. Mounting groove; 502. Threaded rod; 503. Snap-fit ​​groove; 504. Threaded groove; 505. Annular groove one; 506. Annular block; 507. Short rod; 508. Square groove; 6. Dial; 7. Linkage assembly; 701. Limiting block; 702. Annular groove two; 703. Vertical groove; 704. Spring; 705. Small round sleeve; 706. Large round sleeve; 707. Baffle. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-5 The stainless steel cast valve shown includes a valve body 1, a valve core 2 rotatably mounted inside the valve body 1, and an installation rod 3 fixedly mounted on the top of the valve core 2. The installation rod 3 is rotatably connected to the valve body 1, and a valve stem 4 is movably mounted inside the installation rod 3 through an installation assembly 5. A dial 6 is movably fitted on the outer ring of the valve stem 4 through a linkage assembly 7.

[0018] The mounting assembly 5 includes a mounting groove 501 located inside the mounting rod 3. The interior of the mounting groove 501 is connected to the lower end of the valve stem 4 via a threaded rod 502. The threaded rod 502 is threadedly connected to the threaded groove 504 on the mounting rod 3 and the snap-fit ​​groove 503 on the valve stem 4. This ensures that the valve stem 4 can be replaced later and prevents damage to the valve stem 4 from affecting the normal opening and closing of the valve body 1. The mounting assembly 5 also includes an annular groove 505 located inside and connected to the threaded groove 504. An annular block 506 is rotatably mounted inside the annular groove 505. A short rod 507 fixedly mounted on the inner wall of the annular block 506 is slidably connected to the square groove 508 on the threaded rod 502. This ensures that the threaded rod 502 can rotate smoothly when twisted, while preventing the threaded rod 502 from separating from the threaded groove 504.

[0019] During use, twisting the threaded rod 502 causes it to rotate within the threaded groove 504 and simultaneously shift its position. When the threaded rod 502 moves away from the locking groove 503, the mounting rod 3 and the valve stem 4 can be separated. When the threaded rod 502 moves and achieves a threaded connection with the locking groove 503, the mounting rod 3 and the valve stem 4 are successfully connected. At the same time, the short rod 507 is located inside the threaded groove 504, and the two ends of the square groove 508 are closed. This prevents the connection between the short rod 507 and the square groove 508 from falling off, ensuring that the threaded rod 502 and the threaded groove 504 remain connected. This avoids the loss of the threaded rod 502, which would affect the installation of the valve stem 4, and also reduces installation costs.

[0020] The linkage component 7 includes a limiting block 701 that is fixedly connected to the inner ring wall of the dial 6. The limiting block 701 is slidably connected to the annular groove 702 and the vertical groove 703 provided inside the valve stem 4. The annular groove 702 and the vertical groove 703 are connected in communication.

[0021] In this way, only when the limit block 701 matches the vertical groove 703 can the dial 6 drive the valve stem 4 to rotate to realize the opening and closing operation of the valve body 1, thus avoiding accidental opening of the valve body 1.

[0022] The linkage assembly 7 also includes a small circular sleeve 705 disposed on the outer ring of the valve stem 4, and a large circular sleeve 706 is rotatably mounted on the outer ring of the small circular sleeve 705. A spring 704 is connected between the large circular sleeve 706 and the dial 6. The spring 704 is movably fitted on the outer ring of the valve stem 4. The linkage assembly 7 also includes a baffle 707 fixedly connected to the lower end wall of the dial 6. The baffle 707 is annularly fitted on the outer ring of the spring 704. The inner wall of the baffle 707 is attached to the outer ring wall of the large circular sleeve 706 to achieve a movable connection. The baffle 707 protects the spring 704.

[0023] When the dial 6 is turned, the spring 704 and the large circular sleeve 706 rotate synchronously, ensuring the flexibility of the spring 704. Then, when the limiting block 701 rotates and aligns with the opening of the vertical groove 703, the dial 6 is pressed down, causing the limiting block 701 to descend and match the vertical groove 703, thereby enabling the valve stem 4 to be turned. Subsequently, the elastic force of the spring 704 pushes up the dial 6, causing the limiting block 701 to return to the inside of the annular groove 702. At this time, turning the dial 6 will not cause the valve stem 4 to rotate.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stainless steel cast valve, comprising a valve body (1), characterized in that, A valve core (2) is rotatably mounted inside the valve body (1), and a mounting rod (3) is fixedly mounted on the top of the valve core (2). The mounting rod (3) is rotatably connected to the valve body (1), and a valve stem (4) is movably mounted inside the mounting rod (3) via a mounting assembly (5). A dial (6) is movably fitted onto the outer ring of the valve stem (4) via a linkage assembly (7). The mounting assembly (5) includes a mounting groove (501) located inside the mounting rod (3), and the interior of the mounting groove (501) is connected to the lower end of the valve stem (4) via a threaded rod (502). The installation is now connected, and the threaded rod (502) and the threaded groove (504) on the mounting rod (3) and the snap-fit ​​groove (503) on the valve stem (4) are all threadedly connected. The installation assembly (5) also includes an annular groove (505) that is disposed inside the threaded groove (504) and communicates with the threaded groove (504). An annular block (506) is rotatably installed inside the annular groove (505), and a short rod (507) fixedly installed on the inner ring wall of the annular block (506) is slidably connected to the square groove (508) provided on the threaded rod (502).

2. The stainless steel cast valve according to claim 1, characterized in that, The linkage component (7) includes a limiting block (701) fixedly connected to the inner ring wall of the dial (6), and the limiting block (701) is slidably connected to the annular groove (702) and the vertical groove (703) provided inside the valve stem (4), and the annular groove (702) and the vertical groove (703) are connected in communication.

3. A stainless steel cast valve according to claim 2, characterized in that, The linkage component (7) also includes a small round sleeve (705) disposed on the outer ring of the valve stem (4), and a large round sleeve (706) is rotatably mounted on the outer ring of the small round sleeve (705), and a spring (704) is connected between the large round sleeve (706) and the dial (6), and the spring (704) is movably mounted on the outer ring of the valve stem (4).

4. A stainless steel cast valve according to claim 3, characterized in that, The linkage component (7) also includes a baffle (707) fixedly connected to the lower end wall of the dial (6), and the baffle (707) is annularly fitted on the outer ring of the spring (704), and the inner wall of the baffle (707) is attached to the outer ring wall of the large circular sleeve (706) to achieve a movable connection.

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