Valve rod protection device of track ball valve

Abstract

The valve rod protection device comprises a valve rod support and a valve rod, the portion, located in the middle of the valve rod support, of the valve rod is in an exposed state, the left side and the right side, corresponding to the exposed portion of the valve rod, of the valve rod support are fixedly sleeved with installation bases, and the front side and the rear side of each installation base are provided with installation grooves. A blind hole is formed in the groove wall of one side of the mounting groove, a through hole is correspondingly formed in the groove wall of the other side of the mounting groove, a protective cylinder is arranged on the side, away from the valve rod, of the mounting seat corresponding to the through hole, an electric push rod is arranged in the protective cylinder, and protective covers abut against the front side and the rear side of the valve rod support corresponding to the exposed part of the valve rod. The parts, corresponding to the mounting grooves in the same side, of the left side wall and the right side wall of the protection cover are inserted into the corresponding mounting grooves, locking holes are formed in the positions, corresponding to the blind holes, of the left side wall and the right side wall of the protection cover in a penetrating mode, and the telescopic ends of the electric push rods stretch out of the protection barrel and sequentially penetrate through the corresponding through holes and the locking holes to be inserted into the corresponding blind holes. The valve rod can effectively shield and protect the exposed part of the valve rod, and is more practical.

Description

Technical Field

[0001] This utility model belongs to the field of track ball valve technology, specifically relating to a valve stem protection device for a track ball valve. Background Technology

[0002] Orbital ball valves and gate valves belong to the same type of valve. The difference is that the closing element of the ball valve is a ball. It is a type of valve that opens and closes by rotating the ball around the center line of the valve body. In pipelines, it is mainly used for cutting off, distributing and changing the flow direction of the medium. It is a new type of valve that has been widely used in recent years.

[0003] The main components of a track ball valve are a ball, valve body, valve stem, handwheel, and sealing device. However, in actual use, a section of the valve stem located between the valve body and the handwheel in common track ball valves is usually exposed. This part of the valve stem is easily corroded and damaged by external dust and other environmental factors, which is not conducive to the opening and closing of the track ball valve and needs to be improved. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a valve stem protection device for a track ball valve, which can effectively shield and protect the exposed part of the valve stem to solve the above problems.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a valve stem protection device for a track ball valve, comprising a valve stem support and a valve stem mounted on the valve stem support. The portion of the valve stem located in the middle of the valve stem support is exposed. U-shaped mounting seats are fixedly fitted on both the left and right sides of the valve stem support corresponding to the exposed portion of the valve stem. Vertical mounting grooves are formed on both the front and rear sides of the mounting seats. Several blind holes are formed at vertical intervals on one side of the mounting groove near the valve stem, and corresponding through holes are formed on the other side of the groove wall. A protective cylinder is fixed on the side of the mounting base away from the valve stem corresponding to the hole. An electric push rod is fixed inside the protective cylinder. The telescopic end of the electric push rod faces the direction of the mounting base and can extend out of the protective cylinder. Protective covers abut against the front and rear sides of the valve stem support corresponding to the exposed part of the valve stem. The left and right side walls of the protective cover are inserted into the corresponding mounting grooves on the same side, and locking holes are opened through them at the positions corresponding to the blind holes. The telescopic end of the electric push rod extends out of the protective cylinder and passes through the corresponding through holes and locking holes in sequence, and is inserted into the corresponding blind holes.

[0006] Preferably, the left and right side walls of the protective cover are adapted to the corresponding mounting grooves.

[0007] Preferably, the telescopic end of the electric push rod is adapted to the corresponding through hole, locking hole and blind hole.

[0008] Preferably, the protective cover is made of transparent acrylic sheet.

[0009] Preferably, both the mounting base and the protective cylinder are made of aluminum foam.

[0010] Preferably, both the mounting base and the protective cylinder have a wear-resistant ceramic coating on their surfaces.

[0011] The beneficial effects of this utility model are as follows: In practical applications, the mounting base can be directly fixed in place at the corresponding position of the valve stem support of the existing ball valve using existing welding or other methods. After connecting the circuit of the electric push rod, the protective cover can be installed. Specifically, the open end of the protective cover is first placed against the valve stem support, with the open end of the protective cover matching the surface of the corresponding valve stem support. The corresponding parts of the left and right side walls of the protective cover are then inserted into the corresponding mounting grooves, at which point the locking hole can be aligned with the corresponding blind hole and through hole. Then, the corresponding electric push rod is operated, extending its telescopic end. After passing through the corresponding through hole and locking hole, it is inserted into the corresponding blind hole, thus locking the protective cover in place. This completes the fixed installation of the protective cover, ensuring a stable installation without affecting the subsequent protection of the exposed valve stem portion. After installing both the front and rear protective covers as described above, the exposed portion of the valve stem can be fully protected during subsequent use. This effectively prevents external dust and other environmental factors from corroding and damaging the exposed valve stem, thus facilitating the opening and closing of the entire ball valve and ensuring its service life. Furthermore, if the protective cover is damaged, simply operate the corresponding electric actuator to retract and reset its telescopic end, releasing the locking mechanism on the corresponding side of the protective cover. Then, remove the original protective cover and install a new one following the same steps. This allows for flexible and convenient installation and replacement of the protective covers, improving the long-term effectiveness and protection of the exposed valve stem, making the overall use more flexible, convenient, and practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the valve stem support without the protective cover installed.

[0014] Figure 3 This is a top view of the valve stem support structure of this utility model without the protective cover installed;

[0015] Figure 4 This is a schematic diagram of the main structure of the valve stem support with a protective cover installed according to this utility model;

[0016] Figure 5 This is a top view schematic diagram of the valve stem support with a protective cover installed according to this utility model.

[0017] The numbers in the diagram are as follows: 1 is valve stem support, 2 is valve stem, 3 is mounting base, 4 is mounting groove, 5 is blind hole, 6 is through hole, 7 is protective cylinder, 8 is electric push rod, 9 is protective cover, and 10 is locking hole. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 5 As shown, a valve stem protection device for a ball valve includes a valve stem support 1 and a valve stem 2 mounted on the valve stem support 1. The portion of the valve stem 2 located in the middle of the valve stem support 1 is exposed. U-shaped mounting seats 3 are fixedly fitted on both the left and right sides of the valve stem support 1 corresponding to the exposed portion of the valve stem 2. Mounting grooves 4 are vertically opened on both the front and rear sides of the mounting seats 3. Several blind holes 5 are opened on the side wall of the mounting groove 4 near the valve stem 2, and through holes 6 are opened on the other side wall. A protective cylinder 7 is fixed on the side of the mounting seat 3 away from the valve stem 2 corresponding to the through holes 6. An electric push rod 8 is fixed inside the protective cylinder 7. The telescopic end of the electric push rod 8 faces the direction of the mounting seat 3 and can extend out of the protective cylinder 7. The exposed part of the valve stem 2 is abutted on both the front and rear sides of the valve stem support 1. The left and right side walls of the protective cover 9 are inserted into the corresponding mounting groove 4 on the same side, and a locking hole 10 is opened through the protective cover 9 at the position corresponding to the blind hole 5. The telescopic end of the electric push rod 8 extends out of the protective cylinder 7 and passes through the corresponding through hole 6 and locking hole 10 in turn, and is inserted into the corresponding blind hole 5.

[0020] In practical applications, the mounting base 3 can be directly fixed in place at the corresponding position of the valve stem support 1 of the existing ball valve using existing welding or other methods. The circuit of the electric push rod 8 can then be connected (existing electrical connection technology can be used, which will not be detailed here). The protective cover 9 can then be installed. Specifically, the open end of the protective cover 9 is first placed against the valve stem support 1, ensuring the open end of the protective cover 9 matches the surface of the corresponding valve stem support 1. The corresponding parts of the left and right side walls of the protective cover 9 are then inserted into the corresponding mounting grooves 4. At this point, the locking hole 10 can be aligned with the corresponding blind hole 5 and through hole 6. Then, the electric push rod 8 is operated, extending its telescopic end. After passing through the corresponding through hole 6 and locking hole 10, it is inserted into the corresponding blind hole 5, thus locking the protective cover 9 in place. This completes the fixed installation of the protective cover 9, ensuring a stable installation without affecting the subsequent protection of the exposed part of the valve stem 2. After installing both the front and rear protective covers 9 according to the aforementioned steps, the two protective covers 9 can comprehensively shield and protect the exposed part of the valve stem 2 during subsequent use. This effectively prevents external environmental factors such as dust from corroding and damaging the exposed part of the valve stem 2, thus facilitating the opening and closing of the entire track ball valve and ensuring its service life. Furthermore, if the protective cover 9 is damaged, simply operate the corresponding electric push rod 8 to retract and reset its telescopic end, releasing the locking of the corresponding side of the protective cover 9. Then, remove the protective cover 9 to remove the old one. A new protective cover 9 can then be installed following the aforementioned steps. This allows for flexible and convenient disassembly and replacement of the protective covers 9, further improving the long-term effectiveness and protection of the exposed part of the valve stem 2, making the overall use more flexible, convenient, and practical.

[0021] In this embodiment, the left and right side walls of the protective cover 9 are adapted to the corresponding mounting grooves 4 to ensure proper insertion and installation.

[0022] In this embodiment, the telescopic end of the electric push rod 8 is adapted to the corresponding through hole 6, locking hole 10 and blind hole 5 to ensure proper insertion and installation, and to cooperate in achieving the insertion and locking installation of the protective cover 9.

[0023] In this embodiment, the protective cover 9 is made of transparent acrylic sheet. Acrylic sheet is an existing material with the characteristics of long life, good acid and alkali resistance, and easy cleaning. It can better protect the exposed part of the valve stem 2, and the transparency also makes it easy to observe the condition of the exposed part of the valve stem 2, making it more practical.

[0024] In this embodiment, both the mounting base 3 and the protective cylinder 7 are made of aluminum foam. Aluminum foam is an existing material with excellent damping, shock absorption, corrosion resistance and other characteristics. It can effectively ensure the overall service life of the corresponding components and play a certain role in shock absorption and protection. It is more conducive to stable protection and more practical.

[0025] In this embodiment, both the mounting base 3 and the protective cylinder 7 are provided with a wear-resistant ceramic coating (not shown in the figure), which can further improve the wear resistance of the mounting base 3 and the square protective cylinder 7, and is more conducive to the long-term effective use of the mounting base 3 and the protective cylinder 7.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve stem protection device for a ball valve, comprising a valve stem support and a valve stem mounted on the valve stem support, wherein the portion of the valve stem located in the middle of the valve stem support is exposed, characterized in that, The exposed portion of the valve stem has a U-shaped mounting base fixedly fitted on both sides of the valve stem support. The mounting base has vertically formed mounting grooves on both its front and rear sides. On the side wall of the mounting groove closest to the valve stem, several blind holes are spaced vertically apart; on the other side wall, a corresponding through hole is formed. A protective cylinder is fixed on the side of the mounting base away from the valve stem corresponding to the through hole. An electric push rod is fixed inside the protective cylinder. The telescopic end of the electric push rod faces the mounting base and can extend out of the protective cylinder. Protective covers abut against both sides of the valve stem support corresponding to the exposed portion of the valve stem. The left and right side walls of the protective cover, corresponding to the mounting grooves on the same side, are inserted into the corresponding mounting grooves, and locking holes are formed through the protective cover at positions corresponding to the blind holes. The telescopic end of the electric push rod extends out of the protective cylinder and successively passes through the corresponding through hole and locking hole, inserting into the corresponding blind hole.

2. The valve stem protection device for the track ball valve according to claim 1, characterized in that, The left and right side walls of the protective cover are adapted to the corresponding mounting slots.

3. The valve stem protection device for the track ball valve according to claim 1, characterized in that, The telescopic end of the electric push rod is adapted to the corresponding through hole, locking hole and blind hole.

4. The valve stem protection device for the track ball valve according to claim 1, characterized in that, The protective cover is made of transparent acrylic sheet.

5. The valve stem protection device for the track ball valve according to claim 1, characterized in that, Both the mounting base and the protective cylinder are made of aluminum foam.

6. The valve stem protection device for the track ball valve according to claim 1, characterized in that, Both the mounting base and the protective cylinder have a wear-resistant ceramic coating on their surfaces.

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