Convenient multifunctional valve spare part

Abstract

The utility model belongs to the technical field of valve spare parts, and discloses a convenient multifunctional valve spare part which comprises a valve rod, the valve rod is divided into an upper structure and a lower structure, one end of the upper structure is connected with the rotatable lower structure, a key is inserted in the upper structure and the lower structure, and the key is connected with the valve rod. The lower structure comprises a threaded section, a structural ring, a connecting column and a rotating male ring, the upper structure comprises a valve rod section and a valve rod head, an inserting hole corresponding to the connecting column is formed in the valve rod section, a female groove corresponding to the rotating male ring is formed in the bottom end of the inserting hole, and the rotating male ring is clamped in the female groove in a sliding mode. The upper structure and the lower structure are provided with locking holes, the key is inserted into the upper structure and the lower structure and penetrates through the locking holes to enable the upper structure and the lower structure to rotate coaxially, the key is compact and reasonable in structural design, vertical connection can be controlled through the key, stealing opening / closing can be prevented, the key is provided with a convenient groove, the key can be conveniently taken out of the hole, and the key is convenient to use. The use is convenient and the safety is high.

Description

Technical Field

[0001] This utility model relates to the field of valve spare parts technology, specifically a valve spare part with convenient and multifunctional features. Background Technology

[0002] A valve is a device used to control the flow of fluids (such as liquids, gases, or slurries). It can regulate the flow rate and pressure of fluids by opening, closing, or partially closing. Valves are widely used in various industries, including water treatment, petrochemicals, manufacturing, and construction.

[0003] Valve spare parts generally refer to replacement and repair parts related to valves, including but not limited to the following: Seals: such as O-rings and gaskets, used to prevent leakage. Valve disc / seat: a major internal component of the valve, directly affecting its opening and closing performance. Spring: used to provide the closing force of the valve, especially in spring valves. Actuating devices: such as electric actuators and pneumatic actuators, controlling the opening and closing of the valve. Valve stem: connects the actuating device and the valve disc, transmitting operating force. Valve body: the main structural part of the valve, preventing leakage of the internal medium. Manual operating devices: such as handwheels and handles, used to manually open or close the valve.

[0004] Some small pipeline valves, such as water pipe valves and gas pipe valves, are usually placed in open areas such as outdoors or in a room where multiple households live together. This causes some inconvenience when using them. Since many people can enter public places at will, it is difficult to avoid theft and unauthorized opening or closing of the pipelines using these valves. If the user is away for a long time or the valve is accidentally closed by other people, it will cause a lot of trouble and make it very inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a convenient and multifunctional valve spare part, which solves the problems mentioned in the background art, such as the easy theft and opening / closing of small valves in open places.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a convenient and multifunctional valve spare part, including a valve stem, the valve stem being divided into an upper structure and a lower structure, one end of the upper structure being connected to a rotatable lower structure, and a key being inserted into the upper structure and the lower structure.

[0007] The lower structure includes a threaded section, a structural ring, a connecting post, and a rotating male ring. One end of the threaded section is connected to the structural ring, and the side of the structural ring opposite to the threaded section is connected to the connecting post. The end of the connecting post is machined with a rotating male ring, and the end of the connecting post opposite to the threaded section has a first locking hole.

[0008] The upper structure includes a valve stem section and a valve stem head. The valve stem section has a plug hole corresponding to the connecting post. The bottom end of the plug hole has a groove corresponding to the rotating male ring. The valve stem section has a second locking hole corresponding to the first locking hole. The other end of the second locking hole has a through keyhole. The rotating male ring is slidably engaged in the groove, and the connecting post is inserted into the plug hole. The rotating male ring abuts against the end face of the valve stem section.

[0009] Preferably, the key includes a locking section, an extension section, and a structural block. The locking section corresponds to the first locking hole and the second locking hole, and the locking section is inserted into the first locking hole and the second locking hole. The extension section is inserted into the keyhole, and the structural block has two sets of convenient grooves.

[0010] Preferably, the valve stem head has an insertion hole corresponding to the structural block, the structural block is inserted into the insertion hole, and the valve stem head has two sets of force-bearing surfaces machined.

[0011] Compared with the prior art, this utility model provides a convenient and multifunctional valve spare part, which has the following beneficial effects:

[0012] 1. This convenient and multifunctional valve spare part is specifically a valve stem with an upper structure, a lower structure, and a key. The upper and lower connections can be controlled by the key, which can prevent unauthorized opening / closing. The key has a convenient groove, which can easily remove the key from the hole. It is easy to use and has high security.

[0013] 2. Equipped with a key, the key is inserted through the upper and lower structures to connect them, preventing the lower structure from rotating relative to the upper structure. The key can be used to control whether the lower structure rotates with the upper structure, thus providing a locking valve function, preventing unauthorized opening / closing, and greatly improving security.

[0014] 3. It features a convenient groove that, together with the chamfer at the key insertion hole, allows for easy removal of the key from the hole, making it convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lower structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the upper structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the upper structure of this utility model;

[0020] Figure 6 This is a cross-sectional view of the upper and lower structures of this utility model;

[0021] Figure 7 This is a schematic diagram of the key structure of this utility model;

[0022] Figure 8 This is a schematic diagram of the valve stem head of this utility model.

[0023] In the diagram: 1. Upper structure; 2. Lower structure; 3. Key; 4. Threaded section; 5. Structural ring; 6. Connecting post; 7. Rotating male ring; 8. First locking hole; 9. Valve stem section; 10. Valve stem head; 11. Insertion hole; 12. Female groove; 13. Second locking hole; 14. Keyhole; 15. Locking section; 16. Extension section; 17. Structural block; 18. Convenience groove; 19. Insertion hole; 20. Force-bearing surface. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-8 This utility model provides a technical solution:

[0026] A convenient and multifunctional valve spare part includes a valve stem, which is divided into an upper structure 1 and a lower structure 2. One end of the upper structure 1 is connected to the rotatable lower structure 2. A key 3 is inserted into both the upper structure 1 and the lower structure 2. This device has a valve locking function. When the key is inserted, it prevents the lower structure 2 from rotating relative to the upper structure 1. When the key is not inserted, no matter how the upper structure 1 is rotated, the lower structure 2 will rotate relative to the upper structure 1, but will not rotate relative to the valve, thus keeping the valve locked.

[0027] The lower structure 2 includes a threaded section 4, a structural ring 5, a connecting post 6, and a rotating male ring 7. One end of the threaded section 4 is connected to the structural ring 5, and the connecting post 6 is connected to the side of the structural ring 5 facing away from the threaded section 4. The rotating male ring 7 is machined to the end of the connecting post 6, and a first locking hole 8 is provided at the end of the connecting post 6 facing away from the threaded section 4. The threaded section 4 is equivalent to a normal valve stem, used to cooperate with other accessories to control the opening and closing of the valve. The rotating male ring 7 is used to prevent the lower structure 2 from detaching from the upper structure 1.

[0028] The upper structure 1 includes a valve stem section 9 and a valve stem head 10. The valve stem section 9 has an insertion hole 11 corresponding to the connecting post 6. The bottom end of the insertion hole 11 has a groove 12 corresponding to the rotating male ring 7. The valve stem section 9 also has a second locking hole 13 corresponding to the first locking hole 8. The other end of the second locking hole 13 has a through-hole keyhole 14. The rotating male ring 7 slides and engages in the groove 12, and the connecting post 6 is inserted into the insertion hole 11. The rotating male ring 7 abuts against the end face of the valve stem section 9. It is recommended that the first locking hole 8 and the second locking hole 13 have the same shape and size, as this facilitates the machining of the locking section 15 on the key 3.

[0029] Furthermore, the key 3 includes a locking section 15, an extension section 16, and a structural block 17. The locking section 15 corresponds to the first locking hole 8 and the second locking hole 13, and is inserted into the first locking hole 8 and the second locking hole 13. The extension section 16 is inserted into the keyhole 14. The structural block 17 has two sets of convenient grooves 18. The first locking hole 8, the second locking hole 13, and the locking section 15 can be hexagonal, pentagonal, etc., and can be non-circular to prevent them from sliding during rotation. They can all allow the upper structure 1 and the lower structure 2 to rotate together. The function of the key 3 is to connect the upper structure 1 and the lower structure 2 so that they can rotate together.

[0030] Furthermore, the valve stem head 10 has an insertion hole 19 corresponding to the structural block 17, and the structural block 17 is inserted into the insertion hole 19. Two sets of force-bearing surfaces 20 are machined on the valve stem head 10. It is recommended to machine a chamfer at the insertion hole 19, which, together with the convenient groove 18 on the structural block 17, makes it easier to remove the key 3. The two sets of force-bearing surfaces 20 are used to rotate the valve stem with tools such as wrenches, acting as a handle.

[0031] Working principle: When using this device, if it is necessary to open or close the valve, the key 3 needs to be inserted into the upper structure 1. Then, use tools to rotate the upper structure 1 to transfer the operating force to open or close the valve. If the key 3 is not inserted, no matter how the upper structure 1 is rotated, the lower structure 2 at the end of the upper structure 1 will rotate relative to the upper structure 1, while the lower structure 2 will remain stationary relative to the valve, which can hinder operation and prevent unauthorized opening / closing.

[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 convenient and multifunctional valve spare part, including a valve stem, characterized in that: The valve stem is divided into an upper structure (1) and a lower structure (2). One end of the upper structure (1) is connected to the rotatable lower structure (2). A key (3) is inserted into the upper structure (1) and the lower structure (2). The lower structure (2) includes a threaded section (4), a structural ring (5), a connecting post (6), and a rotating male ring (7). One end of the threaded section (4) is connected to the structural ring (5), and the side of the structural ring (5) away from the threaded section (4) is connected to the connecting post (6). The end of the connecting post (6) is machined with a rotating male ring (7), and the end of the connecting post (6) away from the threaded section (4) is provided with a first locking hole (8). The upper structure (1) includes a valve stem section (9) and a valve stem head (10). The valve stem section (9) has a plug hole (11) corresponding to the connecting post (6). The bottom end of the plug hole (11) has a groove (12) corresponding to the rotating male ring (7). The valve stem section (9) has a second locking hole (13) corresponding to the first locking hole (8). The other end of the second locking hole (13) has a through keyhole (14). The rotating male ring (7) is slidably engaged in the groove (12). The connecting post (6) is inserted into the plug hole (11). The rotating male ring (7) abuts against the end face of the valve stem section (9).

2. A convenient and multifunctional valve spare part according to claim 1, characterized in that: The key (3) includes a locking section (15), an extension section (16), and a structural block (17). The locking section (15) corresponds to the first locking hole (8) and the second locking hole (13). The locking section (15) is inserted into the first locking hole (8) and the second locking hole (13). The extension section (16) is inserted into the keyhole (14). The structural block (17) has two sets of convenient grooves (18).

3. A convenient and multifunctional valve spare part according to claim 1, characterized in that: The valve stem head (10) is provided with an insertion hole (19) corresponding to the structural block (17). The structural block (17) is inserted into the insertion hole (19). Two sets of force-bearing surfaces (20) are machined on the valve stem head (10).

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