High sealing stop valve

Abstract

The utility model discloses a kind of high sealing check valves, including valve body, rotating cut-off mechanism, position fixing mechanism and stabilizing mechanism, the rotating cut-off mechanism includes rotating lever and support platform, the position fixing mechanism includes lock sleeve and lock rod, the stabilizing mechanism includes moving ring and outer rotating ring, rotating cut-off mechanism is accurately matched by rotating lever, support platform and rotating block, realize the reliable switch control of valve, rotating handle provides convenient operation interface, rotating lever stably rotates on support platform, accurately drive cut-off block assembly in valve body by the guiding movement of rotating block in rotary guide groove, realize the opening, closing and adjustment of fluid passage, position fixing mechanism realizes the accurate locking and controllable release of rotating lever position, push-in spring continuously pushes lock rod into cut-off groove, ensure the locking of rotating lever.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and more specifically, to a gate valve with high sealing performance. Background Technology

[0002] In existing technologies, high-sealing gate valves are widely used in various industrial systems, especially in fluid control systems with stringent sealing requirements. Their main function is to precisely control the flow state of fluids to ensure the safe operation of pipeline systems. However, existing high-sealing gate valves have some problems in maintaining the locked state, fixing the position, and ease of operation, which limits their effectiveness and convenience in practical applications.

[0003] First, the locking state of existing high-sealing gate valves is prone to loosening. In some designs, locking devices rely on mechanical means, such as threads or clips, to secure the valve in a specific position. However, these locking devices are often at risk of loosening, especially when the pipeline system is subjected to long-term pressure changes or vibrations. The locking device may gradually lose its original securing effect, leading to valve displacement or locking failure.

[0004] Secondly, the fixed position adjustment of existing valves is not convenient enough. For valves that need to be adjusted frequently, operators often need to perform cumbersome manual operations when adjusting the valve opening and closing position, including rotating the valve body, adjusting the threads, or fine-tuning through other complex structures. These operations are usually cumbersome and time-consuming. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a high-sealing shut-off valve to solve the technical problems mentioned in the background art, such as easy loosening of the locking state and inconvenience of fixing the position.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a high-sealing shut-off valve, comprising a valve body, a rotating shut-off mechanism, a position fixing mechanism, and a stabilizing mechanism. The rotating shut-off mechanism includes a rotating rod and a support platform. The support platform is disposed on one end face of the valve body. The rotating rod is rotatably mounted on the support platform. A rotating block is mounted on the rotating rod and rotates and is guided on the support platform. A guide groove and a shut-off groove are provided on the support platform. The position fixing mechanism includes a locking sleeve and a locking rod. The locking sleeve is mounted on the rotating block. A push-in spring is installed inside the locking sleeve. A locking rod is installed at one end of the push-in spring. In the initial state, the locking rod is slidably guided in the guide groove. The push-in spring pushes the locking rod into the shut-off groove, fixing the rotating rod on the support platform. An internal toothed ring is rotatably mounted on the upper limit of the side wall of the locking sleeve. A retaining plate is rotatably mounted on the upper limit of the inner wall of the locking sleeve. Connecting teeth are meshed between the retaining plate and the internal toothed ring. A ratchet ring is connected to the internal toothed ring. The retaining plate can extend into or away from the locking rod.

[0007] The present invention is further configured such that the stabilizing mechanism includes a moving ring and an outer rotating ring. The moving ring is longitudinally movable on the outer wall of the lock sleeve, and the outer rotating ring is rotatably limited and mounted on the outer wall of the lock sleeve. The outer rotating ring and the moving ring are threadedly connected. A spring plate is installed on the moving ring, which can contact and support the ratchet ring. An outer fixing ring is fixedly installed on the outer wall of the lock sleeve, and a spring-loaded spring is installed on the outer fixing ring. The spring-loaded spring is embedded into the outer rotating ring in stages, so that the outer rotating ring rotates stably.

[0008] The present invention is further configured such that a rotating handle is installed at one end of the rotating rod, and the rotating handle rotates to make the rotating rod rotate within the support platform. The rotating handle is installed at one end of the rotating rod to provide a convenient manual control interface for the operator.

[0009] The present invention is further configured such that a stop block assembly is installed in the valve body, and one end of the rotating rod extends into the valve body and is connected to the stop block assembly. The stop block assembly is installed in the valve body and connected to the rotating rod to realize the opening, closing and adjustment of the fluid channel.

[0010] The present invention is further configured such that a rounded corner block is installed at one end of the locking rod. The rounded corner block facilitates the locking rod to disengage from the stop groove and enter the guide groove. The installation of the rounded corner block at one end of the locking rod facilitates the locking rod to disengage from the stop groove and enter the guide groove, ensuring smooth switching.

[0011] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the lock sleeve, and the connecting plate is fixedly installed on one end face of the rotating block. The connecting plate is installed at the bottom of the side wall of the lock sleeve and fixed to the end face of the rotating block to ensure a reliable connection between the lock sleeve and the rotating block.

[0012] The present invention is further configured such that a spring top groove is provided on one end face of the outer rotating ring, and the spring top spring can extend into the spring top groove step by step. The spring top spring is installed on the outer fixed ring and is embedded into the spring top groove of the outer rotating ring step by step to achieve stable rotation and precise positioning.

[0013] The present invention is further configured such that a stabilizing frame is installed on the side wall of the rotating rod, and a stabilizing bolt is installed between the stabilizing frame and the rotating block. The stabilizing frame is installed on the side wall of the rotating rod to provide an installation base for the stabilizing bolt.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a high-sealing shut-off valve, which has the following beneficial effects: This utility model is equipped with a rotating stop mechanism. The rotating stop mechanism realizes reliable opening and closing control of the valve through the precise cooperation of the rotating rod, the support platform and the rotating block. The rotating handle provides a convenient operating interface. The rotating rod rotates stably on the support platform. Through the guiding movement of the rotating block in the guide groove, it precisely drives the stop block assembly in the valve body to realize the opening, closing and adjustment of the fluid channel. The stabilizing frame and the stabilizing bolt ensure a firm connection between the rotating rod and the rotating block, improving the reliability of transmission.

[0015] This utility model is equipped with a position fixing mechanism, which realizes precise locking and controllable release of the rotating rod position. The push spring continuously pushes the locking rod into the stop groove to ensure the locking of the rotating rod. The ratchet ring drives the internal gear ring, and the internal gear ring and the locking plate are driven by the meshing of the connecting teeth to precisely control the extension or retraction of the locking plate into or away from the locking rod, so as to realize the locking and release functions. The rounded corner block design facilitates the smooth switching of the locking rod between the stop groove and the rotating guide groove, improving the convenience of operation.

[0016] This utility model is equipped with a stabilizing mechanism, which provides reliable stable control and anti-loosening locking for the entire device. The outer rotating ring and the moving ring are threaded together to achieve precise adjustment. The spring plate and the ratchet ring contact to form a one-way locking mechanism, which effectively prevents reverse rotation. The spring top spring is embedded in the spring top groove of the outer rotating ring in stages, so that the outer rotating ring rotates stably and achieves precise positioning, ensuring the long-term stability of the valve position and high sealing performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model; Figure 2 This is a schematic diagram of the overall structure of the device from a side view. Figure 3 This is a schematic diagram of the rotating stop mechanism in this utility model; Figure 4 This is a schematic diagram of the position fixing mechanism and the stabilizing mechanism in this utility model; Figure 5This is a schematic diagram of the internal structure of the position fixing mechanism and the stabilizing mechanism in this utility model.

[0018] In the diagram: 1. Valve body; 2. Rotating rod; 3. Support platform; 4. Rotary guide groove; 5. Stop groove; 6. Lock sleeve; 7. Locking rod; 8. Push spring; 9. Internal gear ring; 10. Clamping plate; 11. Connecting tooth; 12. Ratchet ring; 13. Moving ring; 14. Outer rotating ring; 15. Spring plate; 16. Outer retaining ring; 17. Spring top spring; 18. Rotating handle; 19. Stop block assembly; 20. Rounded corner block; 21. Connecting plate; 22. Spring top groove; 23. Stabilizing frame; 24. Stabilizing bolt. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5 A high-sealing shut-off valve includes a valve body 1, a rotating shut-off mechanism, a position fixing mechanism, and a stabilizing mechanism. The rotating shut-off mechanism includes a rotating rod 2 and a support platform 3. The support platform 3 is disposed on one end face of the valve body 1. The rotating rod 2 is rotatably mounted on the support platform 3. A rotating block 101 is mounted on the rotating rod 2 and rotates and is guided on the support platform 3. The support platform 3 has a guide groove 4 and a shut-off groove 5. The position fixing mechanism includes a locking sleeve 6 and a locking rod 7. The locking sleeve 6 is mounted on the rotating block 101, and a locking mechanism is installed inside the locking sleeve 6. A push-in spring 8 is provided, and a locking rod 7 is installed at one end of the push-in spring 8. In the initial state, the locking rod 7 is slidably guided in the rotary guide groove 4. The push-in spring 8 pushes the locking rod 7 into the stop groove 5, so that the rotating rod 2 is fixed on the support platform 3. An internal toothed ring 9 is rotatably installed on the upper limit of the side wall of the locking sleeve 6. A toothed plate 10 is rotatably installed on the upper limit of the inner wall of the locking sleeve 6. A connecting tooth 11 is meshed between the toothed plate 10 and the internal toothed ring 9. A ratchet ring 12 is connected to the internal toothed ring 9. The toothed plate 10 can extend into or away from the locking rod 7.

[0023] In this embodiment, the rotating shut-off mechanism controls the opening and closing of the valve. The rotating rod 2 is rotatably mounted on the support platform 3, with a rotating handle 18 at one end and the other end extending into the valve body 1 and connecting to the shut-off block assembly 19. The rotating block 101 is mounted on the rotating rod 2 and rotates on the support platform 3. When the rotating handle 18 is operated, the rotating rod 2 rotates within the support platform 3, causing the rotating block 101 to rotate within the rotating guide groove 4, simultaneously driving the shut-off block assembly 19 to open or close the valve. The design of the stabilizing bracket 23 and the stabilizing bolt 24 ensures a stable connection between the rotating rod 2 and the rotating block 101. The position fixing mechanism provides a position for the rotating rod 2. For precise locking, the locking sleeve 6 is installed on the rotating block 101, and the internal push spring 8 pushes the locking rod 7. In the initial state, the locking rod 7 slides and is guided in the rotary guide groove 4. When the valve is rotated to the stop, the push spring 8 pushes the locking rod 7 into the stop groove 5, so that the rotating rod 2 is fixed on the support platform 3. At this time, the stop state is fixed. The internal gear ring 9 is driven by the rotation of the ratchet ring 12. The internal gear ring 9 and the toothed plate 10 are driven by the meshing of the connecting teeth 11, which controls the movement of the toothed plate 10, thereby controlling the locking rod 7 to lock or unlock the locking rod 7. The rounded corner block 20 at the end of the locking rod 7 makes it easy for the locking rod 7 to disengage from the stop groove 5 and enter the rotary guide groove 4, ensuring the smoothness of the state switching.

[0024] The stabilizing mechanism includes a moving ring 13 and an outer rotating ring 14. The moving ring 13 is longitudinally movable on the outer wall of the lock sleeve 6, and the outer rotating ring 14 is rotatably limited and mounted on the outer wall of the lock sleeve 6. The outer rotating ring 14 and the moving ring 13 are threadedly connected. A spring plate 15 is installed on the moving ring 13, which can contact and support the ratchet ring 12. An outer retaining ring 16 is fixedly installed on the outer wall of the lock sleeve 6, and a spring-loaded spring 17 is installed on the outer retaining ring 16. The spring-loaded spring 17 is embedded into the outer rotating ring 14 in stages, so that the outer rotating ring 14 rotates stably.

[0025] In this embodiment, the stabilizing mechanism provides stable control and anti-loosening locking for fixed position. The moving ring 13 is longitudinally movable on the outer wall of the lock sleeve 6. The outer rotating ring 14 is threadedly connected to the moving ring 13 to achieve rotational adjustment. The spring plate 15 on the moving ring 13 contacts the ratchet ring 12 to form a one-way locking mechanism to prevent reverse rotation. The outer fixed ring 16 is fixedly installed on the outer wall of the lock sleeve 6. The spring top spring 17 is embedded in the spring top groove 22 of the outer rotating ring 14 in stages to make the outer rotating ring 14 rotate stably and be precisely positioned, ensuring the long-term stability of the locked state.

[0026] Please see Figures 1-5As a supplementary embodiment of a high-sealing shut-off valve for the rotating shut-off mechanism, the position fixing mechanism, and the stabilizing mechanism: A rotating handle 18 is installed at one end of the rotating rod 2. The rotating handle 18 rotates to make the rotating rod 2 rotate within the support platform 3. A shut-off block assembly 19 is installed inside the valve body 1, and one end of the rotating rod 2 extends into the valve body 1 and connects to the shut-off block assembly 19. A rounded corner block 20 is installed at one end of the locking rod 7. The rounded corner block 20 facilitates the locking rod 7 to disengage from the shut-off groove 5 and enter the guide groove. A connecting plate 21 is installed at the bottom end of the side wall of the locking sleeve 6, and the connecting plate 21 is fixedly installed on one end face of the rotating block 101. A spring-loaded groove 22 is opened on one end face of the outer rotating ring 14, and the spring-loaded spring 17 can extend into the spring-loaded groove 22 step by step. A stabilizing frame 23 is installed on the side wall of the rotating rod 2, and a stabilizing bolt 24 is installed between the stabilizing frame 23 and the rotating block 101.

[0027] More specifically, the push spring 8 pushes the locking rod 7 into the stop groove 5, and the rotating rod 2 is fixed on the support platform 3, the valve is in the locked state. Rotating the ratchet ring 12, through the meshing transmission of the internal gear ring 9 and the retaining plate 10, controls the movement of the internal mechanism of the locking sleeve 6, fixing the locking rod 7 inside the locking sleeve 6. After the locking rod 7 disengages from the stop groove 5, it enters the guide groove 4, allowing the rotating rod 2 to rotate freely. Operating the rotating handle 18 causes the rotating rod 2 to drive the rotating block 101 to rotate on the support platform 3, simultaneously driving the stop block assembly 19 inside the valve body 1 to move. Based on the rotation angle of the rotating rod 2, the valve is stopped... The stop block assembly 19 enables the valve to open, close, or adjust, controlling the flow of fluid. The outer rotating ring 14 and the moving ring 13 are threaded together to provide precise adjustment. The spring plate 15 and the ratchet ring 12 form a one-way lock. The spring spring 17 and the spring groove 22 cooperate to achieve stable positioning. After adjustment, the push spring 8 pushes the locking rod 7 into the stop groove 5, and the rotating rod 2 is fixed in the required position. The valve remains closed. The stabilizing mechanism ensures the reliability of the locking state, prevents external vibration or impact from causing position displacement, and maintains the valve's high sealing performance.

[0028] In summary, during the use or operation of the overall equipment: when the rotating shut-off mechanism is required, the rotating shut-off mechanism realizes the opening and closing control of the valve. The rotating rod 2 is rotatably mounted on the support platform 3, with a rotating handle 18 at one end and the other end extending into the valve body 1 and connected to the shut-off block assembly 19. The rotating block 101 is mounted on the rotating rod 2 and rotates and guides on the support platform 3. When the rotating handle 18 is operated, the rotating rod 2 rotates in the support platform 3, driving the rotating block 101 to rotate in the rotating guide groove 4, and at the same time driving the shut-off block assembly 19 to realize the opening or closing action of the valve. The design of the stabilizing frame 23 and the stabilizing bolt 24 ensures a stable connection between the rotating rod 2 and the rotating block 101.

[0029] When the position fixing mechanism is required to operate, it provides precise locking of the position of the rotating rod 2. The locking sleeve 6 is installed on the rotating block 101, and the internal push spring 8 pushes the locking rod 7. In the initial state, the locking rod 7 slides and is guided in the rotary guide groove 4. When the valve is rotated to the stop, the push spring 8 pushes the locking rod 7 into the stop groove 5, so that the rotating rod 2 is fixed on the support platform 3. At this time, the stop state is fixed. The internal gear ring 9 is driven by the rotation of the ratchet ring 12. The internal gear ring 9 and the toothed plate 10 are driven by the meshing of the connecting teeth 11, which controls the movement of the toothed plate 10, thereby controlling the locking rod 7 to lock or unlock the locking rod 7. The rounded corner block 20 at the end of the locking rod 7 makes it easy for the locking rod 7 to disengage from the stop groove 5 and enter the rotary guide groove 4, ensuring the smoothness of the state switching.

[0030] When the stabilizing mechanism is required to operate, it provides stable control and anti-loosening locking for fixed position. The moving ring 13 is longitudinally moved on the outer wall of the lock sleeve 6. The outer rotating ring 14 is threadedly connected to the moving ring 13 to achieve rotational adjustment. The spring plate 15 on the moving ring 13 contacts the ratchet ring 12 to form a one-way locking mechanism to prevent reverse rotation. The outer fixed ring 16 is fixedly installed on the outer wall of the lock sleeve 6. The spring top spring 17 is embedded in the spring top groove 22 of the outer rotating ring 14 in stages to make the outer rotating ring 14 rotate stably and be precisely positioned, ensuring the long-term stability of the locked state.

[0031] The spring 8 pushes the locking rod 7 into the stop groove 5, and the rotating rod 2 is fixed on the support platform 3, putting the valve in a locked state. Rotating the ratchet ring 12, through the meshing transmission of the internal gear ring 9 and the retaining plate 10, controls the movement of the internal mechanism of the locking sleeve 6, fixing the locking rod 7 inside the locking sleeve 6. After the locking rod 7 disengages from the stop groove 5, it enters the guide groove 4, allowing the rotating rod 2 to rotate freely. Operating the rotating handle 18 causes the rotating rod 2 to drive the rotating block 101 to rotate on the support platform 3, simultaneously driving the stop block assembly 19 inside the valve body 1 to move. Depending on the rotation angle of the rotating rod 2, the stop block assembly... Component 19 enables the valve to open, close, or adjust, controlling the flow of fluid. The outer rotating ring 14 and the moving ring 13 are threaded together to provide precise adjustment. The spring plate 15 and the ratchet ring 12 form a one-way lock. The spring spring 17 and the spring groove 22 cooperate to achieve stable positioning. After adjustment, the push spring 8 pushes the locking rod 7 into the stop groove 5, and the rotating rod 2 is fixed in the required position. The valve remains closed. The stabilizing mechanism ensures the reliability of the locking state, prevents external vibration or impact from causing position displacement, and maintains the valve's high sealing performance.

[0032] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0033] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A high-sealing shut-off valve, comprising a valve body (1), a rotating shut-off mechanism, a position fixing mechanism, and a stabilizing mechanism, characterized in that: The rotating stop mechanism includes a rotating rod (2) and a support platform (3). The support platform (3) is set on one end face of the valve body (1). The rotating rod (2) is rotatably mounted on the support platform (3). A rotating block (101) is mounted on the rotating rod (2). The rotating block (101) is rotated and guided on the support platform (3). A rotating guide groove (4) and a stop groove (5) are provided on the support platform (3). The position fixing mechanism includes a locking sleeve (6) and a locking rod (7). The locking sleeve (6) is mounted on the rotating block (101). A push spring (8) is installed inside the locking sleeve (6). One end of the push spring (8) is installed... A locking rod (7) is installed. In the initial state, the locking rod (7) is slidably guided in the rotary guide groove (4). The push spring (8) pushes the locking rod (7) into the stop groove (5) so that the rotating rod (2) is fixed on the support platform (3). The upper limit of the side wall of the locking sleeve (6) is provided with an internal toothed ring (9). The upper limit of the inner wall of the locking sleeve (6) is provided with a toothed plate (10). The toothed plate (10) and the internal toothed ring (9) are meshed and connected by connecting teeth (11). A ratchet ring (12) is connected on the internal toothed ring (9). The toothed plate (10) can extend into or away from the locking rod (7).

2. The high-sealing shut-off valve according to claim 1, characterized in that: The stabilizing mechanism includes a moving ring (13) and an outer rotating ring (14). The moving ring (13) is longitudinally movable on the outer wall of the lock sleeve (6). The outer rotating ring (14) is limited to rotate on the outer wall of the lock sleeve (6). The outer rotating ring (14) and the moving ring (13) are connected by a thread. A spring plate (15) is installed on the moving ring (13). The spring plate (15) can contact and support the ratchet ring (12). An outer fixing ring (16) is fixedly installed on the outer wall of the lock sleeve (6). A spring top spring (17) is installed on the outer fixing ring (16). The spring top spring (17) is embedded into the outer rotating ring (14) step by step, so that the outer rotating ring (14) rotates stably.

3. A high-sealing shut-off valve according to claim 1, characterized in that: One end of the rotating rod (2) is equipped with a rotating handle (18), and the rotating handle (18) rotates to make the rotating rod (2) rotate within the support platform (3).

4. The high containment stop valve of claim 1 wherein: The valve body (1) is equipped with a stop block assembly (19), and one end of the rotating rod (2) extends into the valve body (1) and is connected to the stop block assembly (19).

5. A high-sealing shut-off valve according to claim 1, characterized in that: One end of the locking rod (7) is provided with a rounded corner block (20), which facilitates the locking rod (7) to disengage from the stop groove (5) and enter the guide groove.

6. A high-sealing shut-off valve according to claim 1, characterized in that: A connecting plate (21) is installed at the bottom of the side wall of the lock sleeve (6), and the connecting plate (21) is fixedly installed on one end face of the rotating block (101).

7. A high-sealing shut-off valve according to claim 2, characterized in that: The outer rotating ring (14) has a spring top groove (22) on one end face, and the spring top spring (17) can extend into the spring top groove (22) step by step.

8. A high-sealing shut-off valve according to claim 1, characterized in that: A stabilizing frame (23) is installed on the side wall of the rotating rod (2), and a stabilizing bolt (24) is installed between the stabilizing frame (23) and the rotating block (101).

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