Stainless steel valve casting with emergency flow choking structure

Abstract

The utility model relates to the technical field of stainless steel valve castings, and discloses a stainless steel valve casting with an emergency flow choking structure, which comprises a valve body, a valve core is arranged in the valve body, a channel is arranged in the valve core, the upper surface of the valve body is fixedly connected with a connecting block, a rotating groove is arranged in the connecting block, and the rotating groove is fixedly connected with the valve core. A driving rod is arranged in the rotating groove, the lower end of the driving rod rotationally penetrates into the valve body, the lower end of the driving rod is fixedly connected with the valve element, a first grip is fixedly connected to the outer portion of the driving rod, a connecting plate is arranged on the outer portion of the driving rod, and through cooperation of the connecting plate, a fixing ring, clamping teeth, a clamping groove and other structures, the first grip is fixedly connected to the outer portion of the driving rod; the stability of the valve element is effectively guaranteed, so that the situation that an internal flow choking structure is loosened is effectively avoided, the flow choking effect is guaranteed, the stability is high, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel valve casting technology, specifically a stainless steel valve casting with an emergency flow-blocking structure. Background Technology

[0002] Stainless steel valves are valves made of stainless steel. They are used in industries such as food and biscuit manufacturing, instant noodle and rice noodle manufacturing, various quick-frozen food dehydration production lines, and glass products manufacturing. They can be used to control the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] In the prior art, CN215059544U discloses an emergency flow-blocking structure for an austenitic stainless steel valve casting. Although the above-mentioned prior art achieves the purpose of emergency flow blocking, in actual use, after a long period of use, the internal flow-blocking structure is prone to loosening, which can easily cause displacement when the valve core is impacted by water flow, leading to water overflow. At the same time, after a long period of use, the valve stem, due to the lack of a locking structure, is also prone to internal valve core movement, which greatly affects the flow blocking effect, resulting in poor practicality and stability. In view of this, we propose a stainless steel valve casting with an emergency flow-blocking structure to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a stainless steel valve casting with an emergency flow obstruction structure, thereby solving the problem of poor stability in some existing stainless steel valve castings with emergency flow obstruction structures.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel valve casting with an emergency flow-blocking structure, comprising a valve body, a valve core disposed inside the valve body, a channel formed inside the valve core, a connecting block fixedly connected to the upper surface of the valve body, a rotating groove formed inside the connecting block, a driving rod disposed inside the rotating groove, the lower end of the driving rod rotating through and penetrating into the interior of the valve body, the lower end of the driving rod being fixedly connected to the valve core, a first handle fixedly connected to the outside of the driving rod, a connecting plate disposed outside the driving rod, a second handle fixedly connected to the outside of the connecting plate, a fixing ring fixedly connected to the lower surface of the connecting plate, a locking tooth fixedly connected to the inner wall of the fixing ring, a locking groove formed on the upper surface of the connecting block, the locking tooth and the locking groove being adapted to each other, and a locking component disposed outside the driving rod.

[0006] Preferably, connecting pipes are provided on both sides of the valve body, and the two connecting pipes are connected by a channel.

[0007] Preferably, the upper surface of the connecting block has two arc-shaped grooves, and the lower surface of the connecting plate is fixedly connected to two limiting rods, which are movably connected inside the arc-shaped grooves.

[0008] Preferably, the locking assembly includes a first fixing plate, which is fixedly sleeved on the outside of the drive rod, and a spring is fixedly connected between the first fixing plate and the connecting plate, the spring being movably sleeved on the outside of the drive rod.

[0009] Preferably, the surface of the drive rod has two synchronization grooves, and the inner wall of the rotation groove is fixedly connected to two synchronization blocks, which are slidably connected inside the synchronization groove.

[0010] Preferably, the connecting block is externally fixed with a second fixing plate, and the surface of the second fixing plate is provided with angle markings.

[0011] Preferably, an indicator arrow is fixedly connected to the surface of the connecting plate.

[0012] Preferably, a sealing layer is provided on the outside of the valve core.

[0013] Compared with the prior art, this utility model provides a stainless steel valve casting with an emergency flow-blocking structure, which has the following beneficial effects:

[0014] 1. This stainless steel valve casting with an emergency flow-blocking structure effectively ensures the stability of the valve core through the cooperation between the connecting plate, fixing ring, retaining teeth, and retaining groove, thereby effectively preventing the internal flow-blocking structure from loosening, ensuring the flow-blocking effect, high stability, and high practicality.

[0015] 2. This stainless steel valve casting with an emergency flow-blocking structure, through the cooperation between the first fixing plate and the spring, ensures that the drive rod can only be unlocked when the operator pulls the second handle upwards, thus avoiding accidental operation and facilitating operation by the operator. It is highly convenient and practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a stainless steel valve casting with an emergency flow-blocking structure according to the present invention.

[0017] Figure 2 This is a schematic diagram of the valve body of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting block of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the drive rod of this utility model;

[0021] Figure 6 This is a cross-sectional view of the connecting plate of this utility model;

[0022] Figure 7 This is a cross-sectional view of the valve body of this utility model;

[0023] Figure 8 This is a planar schematic diagram of the valve core of this utility model.

[0024] In the diagram: 1. Valve body; 2. Connecting block; 3. Drive rod; 4. First grip; 5. Connecting plate; 6. Second grip; 7. Fixing ring; 8. Clamping tooth; 9. Clamping groove; 10. Arc groove; 11. Limiting rod; 12. First fixing plate; 13. Spring; 14. Synchronization groove; 15. Synchronization block; 16. Indicating arrow; 17. Second fixing plate; 18. Angle indicator; 19. Connecting pipe; 20. Valve core; 21. Channel; 22. Sealing layer; 23. Rotating groove. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-8 This utility model provides a technical solution: a stainless steel valve casting with an emergency flow-blocking structure, including a valve body 1, a valve core 20 inside the valve body 1, a channel 21 inside the valve core 20, a connecting block 2 fixedly connected to the upper surface of the valve body 1, a rotating groove 23 inside the connecting block 2, a drive rod 3 inside the rotating groove 23, the lower end of the drive rod 3 rotatably penetrating into the interior of the valve body 1, the lower end of the drive rod 3 being fixedly connected to the valve core 20, a first handle 4 fixedly connected to the outside of the drive rod 3, a connecting plate 5 outside the drive rod 3, a second handle 6 fixedly connected to the outside of the connecting plate 5, a fixing ring 7 fixedly connected to the lower surface of the connecting plate 5, a locking tooth 8 fixedly connected to the inner wall of the fixing ring 7, a locking groove 9 on the upper surface of the connecting block 2, the locking tooth 8 and the locking groove 9 being compatible, and a locking component outside the drive rod 3.

[0027] Both sides of the valve body 1 are provided with connecting pipes 19, and the two connecting pipes 19 are connected through a channel 21 to realize the flow of fluid.

[0028] Two arc-shaped grooves 10 are formed on the upper surface of the connecting block 2, and two limiting rods 11 are fixedly connected to the lower surface of the connecting plate 5. The limiting rods 11 are movably connected inside the arc-shaped grooves 10. Through the cooperation of the limiting rods 11 and the arc-shaped grooves 10, the driving rod 3 can only drive the valve core 20 to rotate 90 degrees.

[0029] The locking assembly includes a first fixing plate 12, which is fixedly sleeved on the outside of the drive rod 3. A spring 13 is fixedly connected between the first fixing plate 12 and the connecting plate 5. The spring 13 is movably sleeved on the outside of the drive rod 3. The cooperation between the first fixing plate 12 and the spring 13 ensures the stability of the engagement between the locking teeth 8 and the locking groove 9.

[0030] Two synchronization grooves 14 are formed on the surface of the drive rod 3. Two synchronization blocks 15 are fixedly connected to the inner wall of the rotating groove 23. The synchronization blocks 15 are slidably connected inside the synchronization grooves 14. Through the cooperation between the synchronization blocks 15 and the synchronization grooves 14, the connecting plate 5 can only slide outside the drive rod 3, and the drive rod 3 and the connecting plate 5 will rotate synchronously.

[0031] At this time, with the cooperation of the first fixed plate 12, spring 13, synchronous groove 14, synchronous block 15, locking tooth 8 and locking groove 9, when the connecting plate 5 is not lifted by the second grip 6 to disengage the locking tooth 8 and locking groove 9, the drive rod 3 cannot be driven to rotate, so the valve body 1 cannot be opened or closed, thus ensuring the stability of the internal valve core 20.

[0032] The connecting block 2 is externally fixed with a second fixing plate 17, and the surface of the second fixing plate 17 is provided with an angle mark 18.

[0033] An indicator arrow 16 is fixedly connected to the surface of the connecting plate 5. The cooperation between the indicator arrow 16 and the angle mark 18 makes it easy for the staff to control the rotation angle of the valve core 20 and view the rotation angle of the valve core 20, further improving the practicality of the device.

[0034] A sealing layer 22 is provided on the outside of the valve core 20. The sealing effect between the valve core 20 and the valve body 1 is further improved by the sealing layer 22.

[0035] The sealing layer 22 consists of a sealing ring, an impact-resistant layer, and a corrosion-resistant layer, thereby ensuring the service life of the valve core 20.

[0036] Working principle:

[0037] When using this stainless steel valve casting with an emergency flow-blocking structure, if the operator needs to perform flow-blocking work, they hold the first handle 4 and hook the second handle 6 with their other fingers, then lift the second handle 6 upwards. At this time, the connecting plate 5 will slide outside the drive rod 3 through the cooperation of the synchronizing block 15 and the synchronizing groove 14. The movement of the connecting plate 5 will drive the movement of the fixing ring 7, which in turn will drive the movement of the locking tooth 8. Subsequently, the locking tooth 8 will disengage from the inside of the locking groove 9. Since the positions of the drive rod 3 and the first fixing plate 12 are fixed, the spring 13 will deform. After the locking tooth 8 and the locking groove 9 are separated, the operator rotates the first handle 4 and the second handle 6, which will drive the drive rod 3 to rotate. The rotation of the drive rod 3 will drive the rotation of the valve core 20 until the valve core 20 rotates 90 degrees to achieve closure. At this time, the two connecting pipes 19 will no longer be connected.

[0038] Simultaneously, when the drive rod 3 rotates, the connecting plate 5 also rotates, causing the two limiting rods 11 to move inside the arc groove 10. When the limiting rod 11 contacts the inner wall at the other end of the arc groove 10, the valve core 20 is rotated ninety degrees. Subsequently, by releasing the second grip 6, the spring 13 can re-engage the locking teeth 8 and the locking groove 9, thus ensuring the stability of the drive rod 3 and the valve core 20, and ensuring the sealing effect of the pipeline.

[0039] When only the flow rate of fluid between pipes needs to be controlled, the rotation angle of the valve core 20 can be viewed by simply looking at the indicator arrow 16 and the angle mark 18 during adjustment.

[0040] 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. A stainless steel valve casting with an emergency flow-blocking structure, comprising a valve body (1), characterized in that: The valve body (1) is equipped with a valve core (20) inside. The valve core (20) has a channel (21) inside. A connecting block (2) is fixedly connected to the upper surface of the valve body (1). A rotating groove (23) is opened inside the connecting block (2). A drive rod (3) is installed inside the rotating groove (23). The lower end of the drive rod (3) rotates through the interior of the valve body (1). The lower end of the drive rod (3) is fixedly connected to the valve core (20). The drive rod (3) is externally fixedly connected to a first grip (4), and a connecting plate (5) is provided on the outside of the drive rod (3). A second grip (6) is fixedly connected to the outside of the connecting plate (5). A fixing ring (7) is fixedly connected to the lower surface of the connecting plate (5). A locking tooth (8) is fixedly connected to the inner wall of the fixing ring (7). A slot (9) is opened on the upper surface of the connecting block (2). The locking tooth (8) and the slot (9) are compatible. A locking component is provided on the outside of the drive rod (3).

2. A stainless steel valve casting with an emergency flow-blocking structure according to claim 1, characterized in that: The valve body (1) is provided with connecting pipes (19) on both sides, and the two connecting pipes (19) are connected through a channel (21).

3. A stainless steel valve casting with an emergency flow-blocking structure according to claim 1, characterized in that: The upper surface of the connecting block (2) has two arc-shaped grooves (10), and the lower surface of the connecting plate (5) is fixedly connected to two limiting rods (11), which are movably connected inside the arc-shaped grooves (10).

4. A stainless steel valve casting with an emergency flow-blocking structure according to claim 1, characterized in that: The locking assembly includes a first fixing plate (12), which is fixedly sleeved on the outside of the drive rod (3). A spring (13) is fixedly connected between the first fixing plate (12) and the connecting plate (5), and the spring (13) is movably sleeved on the outside of the drive rod (3).

5. A stainless steel valve casting with an emergency flow-blocking structure according to claim 4, characterized in that: Two synchronization grooves (14) are formed on the surface of the drive rod (3), and two synchronization blocks (15) are fixedly connected to the inner wall of the rotating groove (23). The synchronization blocks (15) are slidably connected inside the synchronization groove (14).

6. A stainless steel valve casting with an emergency flow-blocking structure according to claim 3, characterized in that: The connecting block (2) is externally fixed with a second fixing plate (17), and the surface of the second fixing plate (17) is provided with an angle mark (18).

7. A stainless steel valve casting with an emergency flow-blocking structure according to claim 1, characterized in that: An indicator arrow (16) is fixedly connected to the surface of the connecting plate (5).

8. A stainless steel valve casting with an emergency flow-blocking structure according to claim 1, characterized in that: The valve core (20) is provided with a sealing layer (22) on its outside.

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