Self-locking valve

Abstract

The utility model discloses a self-locking type valve which comprises a valve body and further comprises a control mechanism, the top of the valve body is provided with the control mechanism, the control mechanism comprises an actuator, a valve rod, a mounting seat, a bearing seat, a gear ring, a spring, a lantern ring, a tooth groove, a ring groove and a rotating ring, the actuator is installed on the top of the valve body, the mounting seat is fixedly connected in the actuator, and the bearing seat is fixedly connected in the mounting seat. When the valve body needs to be operated, the lantern ring is lifted upwards to enable a tooth groove in the bottom of the lantern ring to be separated from the gear ring, at the moment, the control end of the actuator can be screwed to drive the valve rod to rotate, the lantern ring is reset after the lantern ring is adjusted to be at a proper opening and closing angle, and the valve body is opened and closed. The tooth groove is inserted into the periphery of the gear ring to lock the valve rod, self-locking control over the valve is achieved, locking is conducted through cooperation of the lantern ring and the gear ring, stress of an internal transmission assembly of the actuator is shared, and the problem that opening and closing are affected due to the fact that the internal transmission assembly is pressed and abraded after long-time use is solved.

Description

Technical Field

[0001] This utility model relates to the field of valve assembly technology, and in particular to a self-locking valve. Background Technology

[0002] Valves are important control components in fluid transport systems, mainly used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. Valves have various control methods, including manual, electric, hydraulic, and pneumatic, and the appropriate drive method can be selected as needed to achieve the opening or closing function, making them widely used.

[0003] Existing valve assemblies have the following drawbacks in use: Butterfly valves are one of the common valve types. In the open or closed state, they are generally locked and fixed by the self-locking characteristics of the internal components of the valve stem actuator. After long-term use, especially when used in high-pressure pipelines, the pressure on the valve stem actuator is relatively large due to the influence of fluid pressure, which can easily lead to wear of the actuator components and affect the opening and closing accuracy and speed. Therefore, we propose a self-locking valve. Utility Model Content

[0004] The main objective of this invention is to provide a self-locking valve. By using a control mechanism set on the top of the valve body, the valve can be self-locked, while reducing the pressure and wear of the actuator caused by fluid pressure, thus effectively solving the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A self-locking valve includes a valve body and a control mechanism. The control mechanism is located on the top of the valve body and includes an actuator, a valve stem, a mounting base, a bearing housing, a toothed ring, a spring, a collar, a toothed groove, an annular groove, and a rotating ring. The actuator is mounted on the top of the valve body, and the mounting base is fixedly connected inside the actuator. The bearing housing is embedded in the middle of the mounting base, and the valve stem, which penetrates the bearing housing, is mounted on the top of the valve body. A toothed ring is welded to the top of the valve stem. A spring is mounted on the top of the outer periphery of the bearing housing, and a collar extending to the outside of the actuator is movably connected to the spring. A toothed groove is formed at the bottom of the inner wall of the collar, which inserts into the outer periphery of the toothed ring. An annular groove is formed on the outer wall of the collar, and a rotating ring is sleeved around the outer periphery of the annular groove.

[0007] Furthermore, it also includes a locking mechanism. A locking mechanism is provided on one side of the actuator surface. The locking mechanism includes a fixed plate, a horizontal plate, a insert plate, and a lock hole. The fixed plate is fixedly connected to one side of the actuator surface in a horizontal direction. The horizontal plate is fixedly connected to the outer periphery of the collar, and the insert plate is fixedly connected to the end of the horizontal plate in a vertical direction, penetrating the fixed plate. A lock hole is opened at the bottom of the insert plate. When the valve body is installed in an outdoor environment, in order to prevent unauthorized personnel from turning the valve assembly, the locking mechanism can be locked. In the collar reset and locked state, the horizontal plate on its side drives the insert plate to penetrate the fixed plate. A lock hole is opened at the bottom of the insert plate. An external lock can be installed outside the lock hole. After locking, the insert plate cannot move upward, which in turn prevents the collar from moving upward. Without unlocking the lock, the valve body cannot be operated, thus preventing unauthorized personnel from turning the valve.

[0008] Furthermore, a rubber ring is bonded to the bottom of the rotating ring facing the top of the actuator; when the collar is in the reset state, the rubber ring at the bottom of the rotating ring adheres to the top of the actuator to prevent impurities from entering the actuator.

[0009] Furthermore, limit rods are fixedly connected to both sides of the bottom of the rotating ring, and limit holes corresponding to the positions of the limit rods are opened on both sides of the top of the actuator, with the limit rods inserted into the limit holes. Under normal conditions, the limit rods are inserted into the limit holes. When the collar is lifted, the limit rods are also pulled out to the outside of the actuator. At this time, the rotating ring can be rotated along the ring groove to make the limit rods and limit holes misalign. Then, the collar is released so that the bottom of the limit rods abuts against the top of the actuator, which can fix the position of the collar and facilitate long-term operation of the valve body.

[0010] Furthermore, the fixing plate has a vertical insertion hole inside, and the insertion plate passes through the insertion hole; the insertion hole structure facilitates the insertion of the insertion plate and facilitates the installation of a lock for locking and fixing.

[0011] Compared with the prior art, this utility model has the following advantages: An actuator is provided on the top of the valve body. During operation, the actuator drives the rotation of the valve stem through an internal control component, thereby controlling the opening and closing state of the valve body. Under normal conditions, the spring is located on the outer periphery of the valve stem, connecting the outer periphery of the bearing seat and the bottom of the collar, keeping the collar in a normally closed state. At this time, the tooth groove engages with the outer periphery of the toothed ring, restricting the rotation of the valve stem. When it is necessary to operate the valve body, the collar is lifted to separate the bottom tooth groove from the toothed ring. Then, the actuator control end can be turned to drive the rotation of the valve stem. After adjusting to a suitable opening and closing angle, the collar is reset, and the tooth groove inserts into the outer periphery of the toothed ring to lock the valve stem, thus controlling the valve. The self-locking control utilizes the engagement of the collar and the toothed ring for locking, distributing the force on the internal transmission components of the actuator and preventing wear and tear on these components due to prolonged use, which could affect opening and closing. When the valve body is installed outdoors, the locking mechanism can be locked to prevent unauthorized personnel from turning the valve assembly. In the collar reset and locked state, the horizontal plate on its side drives the insert plate through the fixed plate. The bottom of the insert plate has a locking hole, which can be used to attach an external lock. Once locked, the insert plate cannot move upwards, thus preventing the collar from moving upwards. Without unlocking the lock, the valve body cannot be operated, preventing unauthorized personnel from turning the valve. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a self-locking valve according to the present invention.

[0013] Figure 2 This is a schematic diagram of the collar and slide plate installation structure of a self-locking valve according to this utility model.

[0014] Figure 3 This utility model relates to a self-locking valve. Figure 2 Enlarged structural diagram at point A in the middle.

[0015] In the diagram: 1. Valve body; 2. Control mechanism; 201. Actuator; 202. Valve stem; 203. Mounting base; 204. Bearing housing; 205. Gear ring; 206. Spring; 207. Collar; 208. Gear groove; 209. Ring groove; 210. Rotary ring; 211. Rubber ring; 212. Limiting rod; 213. Limiting hole; 3. Locking mechanism; 301. Fixing plate; 302. Insertion hole; 303. Horizontal plate; 304. Insertion plate; 305. Locking hole. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-3As shown, a self-locking valve includes a valve body 1 and a control mechanism 2. The control mechanism 2 is located on the top of the valve body 1. The control mechanism 2 includes an actuator 201, a valve stem 202, a mounting base 203, a bearing seat 204, a toothed ring 205, a spring 206, a collar 207, a toothed groove 208, an annular groove 209, and a rotating ring 210. The actuator 201 is mounted on the top of the valve body 1, and the mounting base 203 is fixedly connected inside the actuator 201. The mounting base 203 has a central position inside. A valve stem 202, which passes through the bearing seat 204, is installed on the top of the valve body 1. A toothed ring 205 is welded to the top of the valve stem 202. A spring 206 is installed on the top of the outer periphery of the bearing seat 204, and a collar 207 extending to the outside of the actuator 201 is movably connected through the spring 206. A toothed groove 208 is opened at the bottom of the inner wall of the collar 207 and inserted into the outer periphery of the toothed ring 205. An annular groove 209 is opened on the outer wall of the collar 207, and a rotating ring 210 is sleeved on the outer periphery of the annular groove 209.

[0018] The actuator 201 also includes a locking mechanism 3. The locking mechanism 3 is provided on one side of the actuator 201 surface. The locking mechanism 3 includes a fixed plate 301, a horizontal plate 303, a insert plate 304, and a locking hole 305. The fixed plate 301 is horizontally fixedly connected to one side of the actuator 201 surface. The horizontal plate 303 is fixedly connected to the outer periphery of the collar 207, and the insert plate 304, which penetrates the fixed plate 301, is vertically fixedly connected to the end of the horizontal plate 303. A locking hole 305 is provided at the bottom of the insert plate 304. When the valve body 1 is installed... When installed in an outdoor environment, the locking mechanism 3 can be locked to prevent unauthorized personnel from turning the valve assembly. When the collar 207 is in the reset and locked state, the horizontal plate 303 on its side drives the insert plate 304 through the fixing plate 301. The bottom of the insert plate 304 has a lock hole 305, and an external lock can be installed outside the lock hole 305. After locking, the insert plate 304 cannot move upward, which in turn prevents the collar 207 from moving upward. Without unlocking the lock, the valve body 1 cannot be operated, thus preventing unauthorized personnel from turning the valve.

[0019] The rotating ring 210 has a rubber ring 211 bonded to its bottom side facing the top of the actuator 201. Limiting rods 212 are fixedly connected to both sides of the bottom of the rotating ring 210. Limiting holes 213, corresponding to the positions of the limiting rods 212, are provided on both sides of the top of the actuator 201, with the limiting rods 212 inserted into the limiting holes 213. When the collar 207 is in the reset state, the rubber ring 211 at the bottom of the rotating ring 210 adheres to the top of the actuator 201, preventing impurities from entering the actuator. Inside the actuator 201, under normal conditions, the limiting rod 212 is inserted into the limiting hole 213. When the collar 207 is lifted, the limiting rod 212 is also pulled out to the outside of the actuator 201. At this time, the rotating ring 210 can be rotated along the ring groove 209 to make the limiting rod 212 misaligned with the limiting hole 213. Then the collar 207 is released so that the bottom of the limiting rod 212 abuts against the top of the actuator 201, which can fix the position of the collar 207 and facilitate long-term operation of the valve body 1.

[0020] The fixing plate 301 has a vertical insertion hole 302 inside, and the insertion plate 304 passes through the insertion hole 302. The insertion hole 302 is designed to facilitate the insertion of the insertion plate 304 and to facilitate the installation of a lock for locking and fixing.

[0021] It should be noted that this utility model is a self-locking valve. In use, an actuator 201 is provided on the top of the valve body 1. When the actuator 201 operates, it drives the rotation of the valve stem 202 through an internal control component, thereby controlling the opening and closing state of the valve body 1. Under normal conditions, the spring 206 is located on the outer periphery of the valve stem 202, connecting to the bottom of the collar 207 on the outer periphery of the bearing seat 204, keeping the collar 207 in a normally closed state. At this time, the toothed groove 208 engages with the outer periphery of the toothed ring 205, restricting the rotation of the valve stem 202. When it is necessary to operate the valve body 1, the collar 207 is lifted to separate the toothed groove 208 from the toothed ring 205. Then, the control end of the actuator 201 can be turned to drive the rotation of the valve stem 202. After adjusting to a suitable opening and closing angle, the collar 207 is reset, and the toothed groove 208 is inserted into the outer periphery of the toothed ring 205. The locking valve stem 202 enables self-locking control of the valve. Simultaneously, the engagement of the collar 207 and the toothed ring 205 facilitates locking, sharing the load on the internal transmission components of the actuator 201 and preventing wear and tear on these components due to prolonged use. When the valve body 1 is installed outdoors, the locking mechanism 3 can be locked to prevent unauthorized personnel from tampering with the valve assembly. In the reset and locked state of the collar 207, the side plate 303 drives the insert plate 304 through the fixing plate 301. The bottom of the insert plate 304 has a locking hole 305, allowing an external lock to be installed outside the locking hole 305. Locking restricts the insert plate 304 from moving upwards, thus preventing the collar 207 from moving upwards. Without unlocking the lock, the valve body 1 cannot be operated, preventing unauthorized personnel from tampering with the valve.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking valve comprising a valve body (1), characterized in that, It also includes a control mechanism (2), the valve body (1) top is provided with control mechanism (2), the control mechanism (2) includes actuator (201), valve stem (202), mounting seat (203), bearing seat (204), gear ring (205), spring (206), collar (207), gear slot (208), ring groove (209) and swivel ring (210), the valve body (1) top is installed with actuator (201) and the actuator (201) is fixedly connected with mounting seat (203) inside, the mounting seat (203) is embedded with bearing seat (204) in the middle position inside, and the valve body (1) top is provided with valve stem (202) penetrating bearing seat (204), the valve stem (202) top is welded with gear ring (205), the bearing seat (204) outer periphery top is provided with spring (206) and is movably connected with collar (207) extending to the outside of actuator (201) through spring (206), the collar (207) inner wall bottom end is provided with gear slot (208) inserted into the outer periphery of gear ring (205), the collar (207) outer wall is provided with ring groove (209) and ring groove (209) outer periphery is sleeved with swivel ring (210).

2. A self-locking valve according to claim 1, characterized in that: It also includes a locking mechanism (3), one side of the surface of the actuator (201) is provided with locking mechanism (3), the locking mechanism (3) includes fixed plate (301), horizontal plate (303), plug plate (304) and lock hole (305), one side of the surface of the actuator (201) is fixedly connected with fixed plate (301) in horizontal direction, the outer periphery of the collar (207) is fixedly connected with horizontal plate (303), and the end of the horizontal plate (303) is fixedly connected with plug plate (304) penetrating the fixed plate (301) in vertical direction, the inside bottom of the plug plate (304) is provided with lock hole (305).

3. A self-locking valve according to claim 1, characterized in that: The bottom of the swivel ring (210) is bonded with rubber ring (211) towards one side of the top of the actuator (201).

4. A self-locking valve according to claim 1, characterized in that: The bottom of the swivel ring (210) is fixedly connected with limiting rod (212) on both sides, and the top of the actuator (201) is provided with limiting hole (213) corresponding to the position of the limiting rod (212) on both sides, and the limiting rod (212) is inserted into the inside of the limiting hole (213).

5. A self-locking valve according to claim 2, characterized in that: The inside of the fixed plate (301) is provided with plug hole (302) in vertical direction, and the plug plate (304) penetrates the inside of the plug hole (302).

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