Flange gate valve with stable safety performance

Abstract

The utility model relates to the technical field of flanged gate valves, and discloses a flanged gate valve with stable safety performance, the top of a valve body is fixedly connected with a connecting flange, the top of the connecting flange is fixedly connected with a mounting rack, the two sides of the top of the mounting rack are provided with insertion holes, the middle side of the top of the connecting flange is fixedly connected with a threaded block, and the threaded block is fixedly connected with the valve body. The device comprises a threaded block, a threaded rod is in threaded connection with the interior of the threaded block, a rotating disc is fixedly connected to the top of the threaded rod, a limiting hole is formed in the outer side of the top of the rotating disc, a limiting pin is slidably connected with the interior of the limiting hole, and a mounting block is fixedly connected to the top of the limiting pin. The position of the rotating disc can be locked by penetrating the limiting pins into the corresponding limiting holes and inserting the limiting pins into the inserting holes, the situation that the rotating disc rotates due to the influence of external force, and consequently the threaded rod is loosened is avoided, the use stability of the flange gate valve is improved, and safe and stable use is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of flange gate valve technology, specifically a flange gate valve with stable safety performance. Background Technology

[0002] A flanged gate valve is a gate valve with a flange connection, which is the most common connection method. It is a connecting device used to connect the gate valve and the pipeline in a pipeline system. Flanged gate valves are stable and reliable when used in pipelines, so they are often used in high-pressure pipelines.

[0003] Existing flange gate valves are generally driven by a rotating disc that drives a screw. However, they lack a locking device. During long-term use, they are easily affected by external forces, which can cause the screw to loosen or move, reducing the stability of the flange gate valve and making it difficult to use safely and stably. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flange gate valve with stable safety performance. This solves the problem mentioned in the background art that existing flange gate valves are generally driven by a rotating disc driving a screw, but lack a locking device. However, during long-term use, they are easily affected by external forces, causing the screw to loosen or move, reducing the stability of the flange gate valve and making it inconvenient for safe and stable use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flanged gate valve with stable safety performance, comprising a valve body, a connecting flange fixedly connected to the top of the valve body, a mounting bracket fixedly connected to the top of the connecting flange, insertion holes on both sides of the top of the mounting bracket, a threaded block fixedly connected to the middle side of the top of the connecting flange, a threaded rod threadedly connected inside the threaded block, a rotating disk fixedly connected to the top of the threaded rod, a limit hole opened on the outer side of the top of the rotating disk, a limit pin slidably connected inside the limit hole, a mounting block fixedly connected to the top of the limit pin, a magnet fixedly connected to the middle side of the bottom of the mounting block, side pipes fixedly connected to both sides of the valve body, a sealing flange fixedly connected to the side of the side pipe away from the valve body, a mounting hole opened on the surface of the sealing flange, a mounting groove opened inside the sealing flange, and a rubber sealing ring snapped into the mounting groove.

[0006] Preferably, there are several limiting holes, which are arranged in a ring array on the top outer side of the rotating disk, and the spacing between the limiting holes is the same.

[0007] Preferably, the positions of the plurality of limiting holes correspond to those of the insertion holes, and the diameter of the plurality of limiting holes is the same as the diameter of the insertion holes.

[0008] Preferably, the diameter of the limiting pin is the same as the diameter of the limiting hole, and the limiting pin extends through the limiting hole into the interior of the insertion hole and fits tightly against the inner wall of the insertion hole.

[0009] By adopting the above technical solution, and by setting limit pins, limit holes, and insertion holes in combination, the position of the rotating disk can be locked by passing the limit pin through the corresponding limit hole and inserting it into the insertion hole. This prevents the rotating disk from rotating due to external forces, thus avoiding the loosening of the threaded rod. This improves the stability of the flange gate valve and facilitates safe and stable use.

[0010] Preferably, the number of mounting holes is several, and the several mounting holes are distributed in a ring array on the surface of the sealing flange, and the spacing between the several mounting holes is the same.

[0011] Preferably, the diameter of the rubber sealing ring is the same as that of the mounting groove, the rubber sealing ring is tightly fitted to the inner wall of the mounting groove, and the rubber sealing ring extends 2 mm out of the mounting groove.

[0012] By adopting the above technical solution, and by setting up an installation groove and a rubber sealing ring, one end of the rubber sealing ring extends 2 mm out of the installation groove. When the sealing flange is connected to other pipes and fits tightly, the cross-section of the pipe will squeeze the rubber sealing ring, causing the rubber sealing ring to deform and fill the gap between the pipe and the sealing flange, thereby improving the sealing effect and facilitating use.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This flange gate valve, with its stable safety performance, uses a combination of limit pins, limit holes, and insertion holes. By passing the limit pin through the corresponding limit hole and inserting it into the insertion hole, the position of the rotating disc can be locked, preventing the rotating disc from rotating due to external forces, which could cause the threaded rod to loosen. This improves the stability of the flange gate valve and facilitates safe and stable use.

[0015] 2. This flange gate valve, with its stable safety performance, is used in conjunction with an installation groove and a rubber sealing ring. One end of the rubber sealing ring extends 2 mm out of the installation groove. When the sealing flange is connected to other pipelines and fits tightly, the cross-section of the pipeline will squeeze the rubber sealing ring, causing it to deform and fill the gap between the pipeline and the sealing flange, thereby improving the sealing effect and facilitating its use. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing flange structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating disk structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the limiting pin structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the rubber sealing ring structure of this utility model.

[0022] In the diagram: 1. Valve body; 2. Connecting flange; 3. Threaded block; 4. Mounting bracket; 5. Threaded rod; 6. Insertion hole; 7. Rotary disc; 8. Limiting hole; 9. Limiting pin; 10. Mounting block; 11. Magnet; 12. Side pipe; 13. Sealing flange; 14. Mounting hole; 15. Mounting groove; 16. Rubber sealing ring. 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] Example 1:

[0025] Referring to Figures 1-5, a flanged gate valve with stable safety performance includes a valve body 1. A connecting flange 2 is fixedly connected to the top of the valve body 1. A mounting bracket 4 is fixedly connected to the top of the connecting flange 2. Insertion holes 6 are provided on both sides of the top of the mounting bracket 4. A threaded block 3 is fixedly connected to the middle of the top of the connecting flange 2. A threaded rod 5 is internally threaded into the threaded block 3. A rotating disk 7 is fixedly connected to the top of the threaded rod 5. Limiting holes 8 are provided on the outer side of the top of the rotating disk 7. The limiting holes 8 are arranged in a circular array on the outer side of the top of the rotating disk 7, with equal spacing between them. The positions of the limiting holes 8 correspond to the insertion holes 6. Several limiting holes 8 have the same diameter as the insertion hole 6. Limiting pins 9 are slidably connected inside the limiting holes 8. The diameter of the limiting pins 9 is the same as the diameter of the limiting holes 8. The limiting pins 9 extend through the limiting holes 8 into the insertion hole 6 and fit tightly against the inner wall of the insertion hole 6. A mounting block 10 is fixedly connected to the top of the limiting pin 9. A magnet 11 is fixedly connected to the bottom center of the mounting block 10. Side pipes 12 are fixedly connected to both sides of the valve body 1. A sealing flange 13 is fixedly connected to the side of the side pipe 12 away from the valve body 1. A mounting hole 14 is opened on the surface of the sealing flange 13. A mounting groove 15 is opened inside the sealing flange 13. A rubber sealing ring 16 is snapped into the inside of the mounting groove 15.

[0026] Working principle: During use, the operator can control the rotation of the threaded rod 5 through the rotating disc 7. The rotation of the threaded rod 5 controls the opening and closing of the valve body 1. When the operator needs to lock the threaded rod 5, the limit pin 9 can be inserted into the limit hole 8 on the rotating disc 7 through the mounting block 10, and then inserted through the limit pin into the insertion hole 6 on the mounting bracket 4, thereby locking the position of the rotating disc 7. At this time, the magnet 11 located at the bottom of the mounting block 10 will also be attracted to the top middle side of the rotating disc 7, thereby fixing the position of the limit pin 9. When the rotating disc 7 is locked, the position of the threaded rod 5 will also be locked, preventing the rotating disc 7 from rotating due to external force, which would cause the threaded rod 5 to loosen. This improves the stability of the flange gate valve and facilitates safe and stable use.

[0027] Compared with related technologies, the flange gate valve with stable safety performance provided by this utility model has the following beneficial effects: by setting limit pins 9, limit holes 8, and insertion holes 6 in combination, the position of the rotating disk 7 can be locked by passing the limit pin 9 through the corresponding limit hole 8 and inserting it into the insertion hole 6, so as to prevent the rotating disk 7 from rotating due to external force, thereby preventing the threaded rod 5 from loosening, improving the stability of the flange gate valve and facilitating safe and stable use.

[0028] Example 2:

[0029] Referring to Figures 1-6, side pipes 12 are fixedly connected to both sides of the valve body 1. A sealing flange 13 is fixedly connected to the side of the side pipe 12 away from the valve body 1. The surface of the sealing flange 13 has several mounting holes 14, which are arranged in a circular array on the surface of the sealing flange 13, and the spacing between the mounting holes 14 is the same. The inside of the sealing flange 13 has a mounting groove 15, and a rubber sealing ring 16 is engaged inside the mounting groove 15. The diameter of the rubber sealing ring 16 is the same as that of the mounting groove 15. The rubber sealing ring 16 fits tightly against the inner wall of the mounting groove 15, and the rubber sealing ring 16 extends 2 mm beyond the outer side of the mounting groove 15.

[0030] Working principle: When in use, when the sealing flange 13 is connected to other pipes through the mounting hole 14, the cross-section of the connected pipe will fit tightly against the surface of the sealing flange 13. At this time, the cross-section of the pipe will squeeze the rubber sealing ring 16, causing the rubber sealing ring 16 to deform, thereby filling the gap between the pipe and the sealing flange 13, thus improving the sealing effect and facilitating use.

[0031] Compared with related technologies, the flange gate valve with stable safety performance provided by this utility model has the following beneficial effects: by setting the mounting groove 15 and rubber sealing ring 16 for use, one end of the rubber sealing ring 16 extends 2 mm outside the mounting groove 15. When the sealing flange 13 is connected to other pipes and fits tightly, the cross section of the pipe will squeeze the rubber sealing ring 16, causing the rubber sealing ring 16 to deform, thereby filling the gap between the pipe and the sealing flange 13, thus improving the sealing effect and facilitating use.

[0032] 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 flanged gate valve with stable safety performance, comprising a valve body (1), characterized in that: A connecting flange (2) is fixedly connected to the top of the valve body (1), and a mounting bracket (4) is fixedly connected to the top of the connecting flange (2). Insertion holes (6) are provided on both sides of the top of the mounting bracket (4). A threaded block (3) is fixedly connected to the middle side of the top of the connecting flange (2). A threaded rod (5) is threadedly connected inside the threaded block (3). A rotating disk (7) is fixedly connected to the top of the threaded rod (5). A limit hole (8) is provided on the outer side of the top of the rotating disk (7). A limit hole (8) is slidably connected inside the limit hole (8). Pin (9), the top of the limiting pin (9) is fixedly connected to the mounting block (10), the bottom middle side of the mounting block (10) is fixedly connected to the magnet (11), the two sides of the valve body (1) are fixedly connected to the side pipe (12), the side of the side pipe (12) away from the valve body (1) is fixedly connected to the sealing flange (13), the surface of the sealing flange (13) is provided with the mounting hole (14), the inside of the sealing flange (13) is provided with the mounting groove (15), and the inside of the mounting groove (15) is fitted with the rubber sealing ring (16).

2. The flange gate valve with stable safety performance according to claim 1, characterized in that: The number of the limiting holes (8) is several, and the several limiting holes (8) are arranged in a ring array on the top outer side of the rotating disk (7), and the spacing between the several limiting holes (8) is the same.

3. A flange gate valve with stable safety performance according to claim 1, characterized in that: The positions of several limiting holes (8) correspond to those of the insertion holes (6), and the diameter of several limiting holes (8) is the same as that of the insertion holes (6).

4. A flange gate valve with stable safety performance according to claim 1, characterized in that: The diameter of the limiting pin (9) is the same as the diameter of the limiting hole (8), and the limiting pin (9) extends through the limiting hole (8) into the interior of the insertion hole (6) and fits tightly against the inner wall of the insertion hole (6).

5. A flange gate valve with stable safety performance according to claim 1, characterized in that: The number of mounting holes (14) is several, and the several mounting holes (14) are arranged in a ring array on the surface of the sealing flange (13), and the spacing between the several mounting holes (14) is the same.

6. A flange gate valve with stable safety performance according to claim 1, characterized in that: The diameter of the rubber sealing ring (16) is the same as that of the mounting groove (15). The rubber sealing ring (16) fits tightly against the inner wall of the mounting groove (15), and the rubber sealing ring (16) extends 2 mm beyond the outer side of the mounting groove (15).

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