Dark bar gate valve with anti-deviation guide

Abstract

The utility model discloses a kind of with anti-deviation guiding's concealed rod gate valve, it is related to concealed rod gate valve technical field.The utility model discloses a valve body, first passage is opened in the both sides of valve body and is penetrated, the top end middle position of valve body is opened with second passage, second passage is communicated with first passage, slidingly connected with valve plate in second passage, the sealing surface section size of valve plate is greater than the first passage flow cross section size, the top end of valve body is fixed with valve cover, the top end of valve cover is fixed with mounting bracket, the top end of valve plate is provided with guiding mechanism, guiding mechanism includes the moving block fixed in the top end of valve plate.The utility model is through being provided with guiding mechanism, reinforcing rod in guiding mechanism is rigidly connected with valve plate and is penetrated valve cover, equivalent to increase a "guide shaft" for valve plate, can limit valve plate in the transverse wobble or deviation of lifting process, cooperate moving block and form guiding effect in second passage, reduce the valve plate skewing due to medium pressure or operating force.

Description

Technical Field

[0001] This utility model relates to the field of non-spinning stem gate valve technology, specifically a non-spinning stem gate valve with anti-deviation guide. Background Technology

[0002] In fluid transport systems, non-exposed stem gate valves are widely used in buried pipelines and space-constrained scenarios due to their compact structure and the fact that the valve stem is not exposed as the gate rises and falls. However, existing seamless non-exposed stem gate valves (announcement number: CN215950437U) have the following disadvantages in use:

[0003] During use, the gate is prone to lateral displacement or shaking due to medium pressure during opening and closing, which can lead to misalignment and jamming of the sealing surface. This not only reduces the reliability of the seal, but also aggravates component wear, shortens the service life of the valve, and further affects the sealing performance and operational stability. To address these issues, this patent proposes a gate valve with anti-displacement guidance to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a gate valve with anti-deviation guidance to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gate valve with anti-deviation guidance, comprising a valve body, a first channel extending through both sides of the valve body, a second channel opening at the middle of the top of the valve body, the second channel being connected to the first channel, a valve plate slidably connected within the second channel, the sealing surface cross-sectional dimension of the valve plate being larger than the flow cross-sectional dimension of the first channel, a valve cover fixed to the top of the valve body, a mounting bracket fixed to the top of the valve cover, a guide mechanism provided at the top of the valve plate, the guide mechanism including a movable block fixed to the top of the valve plate, the movable block sliding within the second channel, a reinforcing rod fixed within the valve plate, the reinforcing rod extending through the top of the valve cover, a movable plate fixed to the top of the reinforcing rod, a pointer fixed to one end of the movable plate, and scale lines provided on the side of the mounting bracket.

[0006] Preferably, a valve stem is screwed into the valve plate, and a connecting rod is fixed to the top of the valve stem. The connecting rod passes through the valve cover and the mounting bracket and is rotatably connected to the valve cover and the mounting bracket.

[0007] Preferably, a handwheel is fixed to the top of the connecting rod, and a limiting component is installed on the outer wall of the connecting rod, the limiting component being rotatably connected within the mounting frame.

[0008] Preferably, observation windows are installed on both sides of the mounting bracket.

[0009] Preferably, a first flange is fixed to the top of the valve body, and a corresponding second flange is fixed to the bottom of the valve cover. Multiple studs pass through between the first flange and the second flange, and nuts are screwed onto the studs.

[0010] Preferably, a sealing gasket is provided between the first flange and the second flange.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting up a guiding mechanism, the reinforcing rod in the guiding mechanism is rigidly connected to the valve plate and passes through the valve cover, which is equivalent to adding a "guide shaft" to the valve plate. This can limit the lateral swaying or offset of the valve plate during the lifting and lowering process. Together with the movement of the moving block in the second channel, it forms a guiding effect, reducing the valve plate tilting caused by medium pressure or operating force, avoiding misalignment or jamming of the sealing surface, improving the sealing performance and stability of the valve plate operation. Furthermore, when the valve plate moves upward, it drives the reinforcing rod to move upward, causing the moving plate to move upward. The upward movement of the moving plate causes the pointer to move upward, intuitively reflecting the lifting and lowering height of the valve plate and indirectly indicating the valve opening. Operators do not need to interpret or rely on electronic displays, which is especially suitable for outdoor, humid, and other environments where it is inconvenient to use electronic equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a sectional view of the valve body of this utility model;

[0015] Figure 3 This is a side view of the valve body of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Valve body; 2. First channel; 3. Second channel; 4. Valve plate; 5. Valve stem; 6. Reinforcing rod; 7. Connecting rod; 8. Moving plate; 9. Handwheel; 10. Mounting bracket; 11. Limiting element; 12. Observation window; 13. Scale line; 14. Pointer; 15. Moving block; 16. Valve cover. Detailed Implementation

[0018] 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.

[0019] In fluid transport systems, non-exposed valve stems (5) are widely used in buried pipelines and other space-constrained applications due to their compact structure and the fact that the stem is not exposed during the rise and fall of the gate. This invention provides a non-exposed valve stem with anti-deviation guidance. By setting a guiding mechanism, the reinforcing rod 6 in the guiding mechanism is rigidly connected to the valve plate 4 and passes through the valve cover 16, which is equivalent to adding a "guide shaft" to the valve plate 4. This can limit the lateral swaying or deviation of the valve plate 4 during the rise and fall process. Together with the moving block 15 moving in the second channel 3, it forms a guiding effect, reducing the tilt of the valve plate 4 caused by medium pressure or operating force, avoiding misalignment or jamming of the sealing surface, and improving the stability of the valve plate 4. Furthermore, when the valve plate 4 moves upward, it drives the reinforcing rod 6 to move upward, causing the moving plate 8 to move upward. The upward movement of the moving plate 8 drives the pointer 14 to move upward, which intuitively reflects the rise and fall height of the valve plate 4 and indirectly reflects the valve opening. Operators do not need to interpret or rely on electronic displays, making it especially suitable for outdoor, humid, and other environments where it is inconvenient to use electronic equipment.

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: a gate valve with anti-offset guidance, including a valve body 1, a first channel 2 extending through both sides of the valve body 1, a second channel 3 at the middle of the top of the valve body 1, the second channel 3 being connected to the first channel 2, a valve plate 4 slidably connected in the second channel 3, the sealing surface cross-sectional dimension of the valve plate 4 being larger than the flow cross-sectional dimension of the first channel 2, a valve cover 16 fixed to the top of the valve body 1, a mounting bracket 10 fixed to the top of the valve cover 16, a guide mechanism provided at the top of the valve plate 4, the guide mechanism including a moving block 15 fixed to the top of the valve plate 4, the moving block 15 sliding in the second channel 3, a reinforcing rod 6 fixed in the valve plate 4, the reinforcing rod 6 extending through the top of the valve cover 16, a moving plate 8 fixed to the top of the reinforcing rod 6, a pointer 14 fixed to one end of the moving plate 8, and a scale line 13 provided on the side of the mounting bracket 10.

[0021] It is important to note that by setting up a guiding mechanism, the reinforcing rod 6 in the guiding mechanism is rigidly connected to the valve plate 4 and passes through the valve cover 16, which is equivalent to adding a "guide shaft" to the valve plate 4. This can limit the lateral swaying or offset of the valve plate 4 during the lifting and lowering process. Together with the moving block 15 moving in the second channel 3, it forms a guiding effect, reducing the tilting of the valve plate 4 caused by medium pressure or operating force, avoiding misalignment or jamming of the sealing surface, and improving the stability of the valve plate 4 operation. Furthermore, when the valve plate 4 moves upward, it drives the reinforcing rod 6 to move upward, causing the moving plate 8 to move upward. The upward movement of the moving plate 8 drives the pointer 14 to move upward, which intuitively reflects the lifting height of the valve plate 4 and indirectly reflects the valve opening. Operators do not need to interpret or rely on electronic displays, which is especially suitable for outdoor, humid, and other environments where it is inconvenient to use electronic equipment.

[0022] like Figure 2As shown, a valve stem 5 is screwed into the valve plate 4. A connecting rod 7 is fixed to the top of the valve stem 5. The connecting rod 7 passes through the valve cover 16 and the mounting bracket 10 and is rotatably connected to the valve cover 16 and the mounting bracket 10. A handwheel 9 is fixed to the top of the connecting rod 7. A limiting member 11 is installed on the outer wall of the connecting rod 7 and is rotatably connected to the mounting bracket 10. Observation windows 12 are installed on both sides of the mounting bracket 10. A first flange is fixed to the top of the valve body 1, and a corresponding second flange is fixed to the bottom of the valve cover 16. Multiple studs pass through the first flange and the second flange, and nuts are screwed onto the studs. A sealing gasket is provided between the first flange and the second flange.

[0023] It should be noted that by turning the handwheel 9, the handwheel 9 drives the connecting rod 7 to rotate, and the rotation of the connecting rod 7 drives the valve stem 5 to rotate, thereby causing the valve plate 4 to move up and down in the second channel 3. In addition, the observation window 12 can be set to clearly see the position of the pointer 14, and can protect the parts in the mounting bracket 10, preventing dust and other objects from covering the surface of the connecting rod 7, the moving plate 8, and the pointer 14, affecting the rotation of the connecting rod 7, as well as the movement of the moving plate 8 and the pointer 14. A sealing gasket is set to seal the valve cover 16 and the valve body 1.

[0024] 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 embodiments and their equivalents.

Claims

1. A gate valve with anti-offset guidance, comprising a valve body (1), characterized in that: A first channel (2) is provided through both sides of the valve body (1), and a second channel (3) is provided at the middle of the top of the valve body (1). The second channel (3) is connected to the first channel (2). A valve plate (4) is slidably connected in the second channel (3). The sealing surface cross-sectional dimension of the valve plate (4) is larger than the flow cross-sectional dimension of the first channel (2). A valve cover (16) is fixed at the top of the valve body (1). A mounting bracket (10) is fixed at the top of the valve cover (16). A guide mechanism is provided at the top of the valve plate (4). The guide mechanism includes a moving block (15) fixed at the top of the valve plate (4). The moving block (15) slides in the second channel (3). A reinforcing rod (6) is fixed in the valve plate (4). The reinforcing rod (6) passes through the top of the valve cover (16). A moving plate (8) is fixed at the top of the reinforcing rod (6). A pointer (14) is fixed at one end of the moving plate (8). A scale line (13) is provided on the side of the mounting bracket (10).

2. A gate valve with anti-deviation guide according to claim 1, characterized in that: A valve stem (5) is screwed into the valve plate (4). A connecting rod (7) is fixed to the top of the valve stem (5). The connecting rod (7) passes through the valve cover (16) and the mounting bracket (10) and is rotatably connected to the valve cover (16) and the mounting bracket (10).

3. A gate valve with anti-deviation guide according to claim 2, characterized in that: A handwheel (9) is fixed to the top of the connecting rod (7), and a limiting member (11) is installed on the outer wall of the connecting rod (7). The limiting member (11) is rotatably connected in the mounting frame (10).

4. A gate valve with anti-deviation guide according to claim 1, characterized in that: The mounting bracket (10) has observation windows (12) installed on both sides.

5. A gate valve with anti-deviation guide according to claim 1, characterized in that: The valve body (1) is fixed with a first flange at the top and a corresponding second flange is fixed at the bottom of the valve cover (16). Multiple studs pass through between the first flange and the second flange, and nuts are screwed onto the studs.

6. A gate valve with anti-deviation guide according to claim 5, characterized in that: A sealing gasket is provided between the first flange and the second flange.

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