Wear-free hard sealing ball valve

Abstract

The utility model discloses a wear-free hard sealing ball valve which comprises a valve body, first flange plates are fixedly arranged on the left side and the right side of the valve body in a sleeved mode, a mounting plate is moved, the mounting plate is moved to the side, close to the valve body, of the first flange plates, then a screw penetrates through a mounting hole, and the first flange plates are fixedly connected with the mounting plate. Then a connecting pipeline is moved to drive a second flange plate to move, so that the second flange plate corresponds to the first flange plate, at the moment, a flange hole in the second flange plate corresponds to a screw, then a rotating disc is rotated, the rotating disc drives a threaded rod to rotate, and the threaded rod drives an extrusion pad to move towards the second flange plate under the action of threads; compared with the prior art, the device has the advantages that the installation operation is simple, the labor amount is small, and the device is suitable for popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a wear-free hard-sealed ball valve. Background Art

[0002] The ball valve sealing material pairing is metal-to-metal ball valve. The structural forms of the ball valve are divided into floating ball type, wear-free type and fixed ball type. The connection forms are flange connection, welding connection and threaded connection.

[0003] The existing wear-free hard-sealed ball valve requires multiple operators to operate the process of installing and connecting with the pipeline through connecting flanges and bolts. One person is required to support the pipeline to keep it in contact with one side of the valve, and then fix it with bolts. This operation method is too cumbersome and is not suitable for popularization. Utility Model Content

[0004] The technical problem solved by the utility model is to overcome the defects of the prior art and provide a wear-free hard-sealed ball valve.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wear-free hard-sealed ball valve, comprising a valve body, wherein first flanges are fixedly sleeved on both left and right sides of the valve body, a second flange is fixedly sleeved on the side of the first flange away from the valve body, a connecting pipe is fixedly connected to the side of the second flange away from the valve body, two mounting plates are provided on the side of the first flange away from the second flange, two mounting holes are provided on the mounting plates, and four screws are provided on the side of the first flange close to the valve body;

[0007] A mounting bracket is fixedly connected to a side of the mounting plate close to the valve body, a second nut is fixedly inserted into a side of the mounting bracket away from the valve body, a turntable is provided on a side of the mounting bracket away from the valve body, a threaded rod is fixedly connected to a side of the turntable close to the mounting bracket, an end of the threaded rod away from the turntable passes through the second nut and is fixedly connected to an extrusion pad.

[0008] Preferably, a sealing ring is fixedly connected to the top of the valve body, a valve stem is inserted into the top of the sealing ring, and a rocker is fixedly connected to the top of the valve stem.

[0009] Preferably, four flange holes are formed on the first flange and the second flange, one end of the screw movably passes through the adjacent mounting holes and flange holes, and is sleeved with a first nut.

[0010] Preferably, the compression pad and the second flange are in contact with each other.

[0011] Preferably, the cross section of the mounting plate is arc-shaped, and the cross section of the mounting frame is U-shaped.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is a wear-free hard-sealed ball valve. The mounting plate is moved to the side of the first flange close to the valve body, and then the screw is passed through the mounting hole. Then the connecting pipe is moved, and the connecting pipe drives the second flange to move, so that the second flange corresponds to the first flange. At this time, the flange hole on the second flange corresponds to the screw, and then the turntable is rotated, and the turntable drives the threaded rod to rotate. Under the action of the thread, the threaded rod drives the extrusion pad to move in the direction of the second flange until the extrusion pad fits the second flange. At this time, the second flange is simply fixed to one side of the first flange by the extrusion pad, and then the first nut can be installed separately. Compared with the prior art, the device is simple to install and operate, with a small amount of labor, and is suitable for popularization and use;

[0014] 2. The utility model provides a wear-free hard-sealed ball valve. By rotating the turntable, the turntable drives the threaded rod to rotate. Under the action of the thread, the threaded rod drives the extrusion pad to move toward the second flange until the extrusion pad fits with the second flange. The second flange and the first flange can be fixed again, with better protection performance and more stable connection, ensuring the normal use of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is an exploded view of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the component mounting frame of the utility model.

[0018] Numbers in the figure: 1. valve body; 2. sealing ring; 3. valve stem; 4. rocker; 5. first flange; 6. second flange; 7. connecting pipe; 8. mounting plate; 9. screw; 10. first nut; 11. mounting frame; 12. turntable; 13. flange hole; 14. mounting hole; 15. threaded rod; 16. second nut; 17. extrusion pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model provides a technical solution: a wear-free hard-sealed ball valve, comprising a valve body 1, a sealing ring 2 is fixedly connected to the top of the valve body 1, a valve stem 3 is inserted on the top of the sealing ring 2, a rocker 4 is fixedly connected to the top of the valve stem 3, a first flange 5 is fixedly sleeved on both the left and right sides of the valve body 1, a second flange 6 is provided on the side of the first flange 5 away from the valve body 1, a connecting pipe 7 is fixedly connected to the side of the second flange 6 away from the valve body 1, two mounting plates 8 are provided on the side of the first flange 5 away from the second flange 6, two mounting holes 14 are provided on the mounting plate 8, four screws 9 are provided on the side of the first flange 5 close to the valve body 1, four flange holes 13 are provided on the first flange 5 and the second flange 6, one end of the screw 9 movably passes through the adjacent mounting hole 14 and flange hole 13, and is sleeved with a first nut 10;

[0021] A mounting frame 11 is fixedly connected to one side of the mounting plate 8 close to the valve body 1, the cross section of the mounting plate 8 is arc-shaped, the cross section of the mounting frame 11 is U-shaped, a second nut 16 is fixedly inserted on one side of the mounting frame 11 away from the valve body 1, a turntable 12 is provided on one side of the mounting frame 11 away from the valve body 1, a threaded rod 15 is fixedly connected to one side of the turntable 12 close to the mounting frame 11, one end of the threaded rod 15 away from the turntable 12 passes through the second nut 16, and is fixedly connected to an extrusion pad 17, which fits the second flange 6 with each other.

[0022] Working principle: during use, first move the mounting plate 8, move the mounting plate 8 to the side of the first flange 5 close to the valve body 1, then pass the screw 9 through the mounting hole 14 and through the flange hole 13, then move the connecting pipe 7, the connecting pipe 7 drives the second flange 6 to move, so that the second flange 6 corresponds to the first flange 5, at this time the flange hole 13 on the second flange 6 corresponds to the screw 9, then rotate the turntable 12, the turntable 12 drives the threaded rod 15 to rotate, the threaded rod 15 drives the extrusion pad 17 to move in the direction of the second flange 6 under the action of the thread, until the extrusion pad 17 fits the second flange 6, at this time the second flange 6 is simply fixed to the side of the first flange 5 by the extrusion pad 17, and then the first nut 10 can be installed separately. Compared with the prior art, the device is simple to install and operate, with less labor, and is suitable for popularization and use;

[0023] At the same time, by rotating the turntable 12, the turntable 12 drives the threaded rod 15 to rotate, and the threaded rod 15 drives the extrusion pad 17 to move toward the second flange 6 under the action of the thread, until the extrusion pad 17 fits with the second flange 6, and the second flange 6 and the first flange 5 can be fixed again, with better protection performance and more stable connection, thereby ensuring the normal use of the valve.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0029] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wear-free hard-sealed ball valve, comprising a valve body, characterized in that: The left and right sides of the valve body are both fixedly sleeved with a first flange, the side of the first flange away from the valve body is provided with a second flange, the side of the second flange away from the valve body is fixedly connected to a connecting pipe, the side of the first flange away from the second flange is provided with two mounting plates, the mounting plates are provided with two mounting holes, and the side of the first flange close to the valve body is provided with four screws; A mounting bracket is fixedly connected to a side of the mounting plate close to the valve body, a second nut is fixedly inserted into a side of the mounting bracket away from the valve body, a turntable is provided on a side of the mounting bracket away from the valve body, a threaded rod is fixedly connected to a side of the turntable close to the mounting bracket, an end of the threaded rod away from the turntable passes through the second nut and is fixedly connected to an extrusion pad.

2. A wear-free hard-sealed ball valve according to claim 1, characterized in that: A sealing ring is fixedly connected to the top of the valve body, a valve stem is inserted into the top of the sealing ring, and a rocker is fixedly connected to the top of the valve stem.

3. The wear-free hard-sealed ball valve according to claim 1, characterized in that: The first flange and the second flange are both provided with four flange holes, one end of the screw movably passes through the adjacent mounting holes and flange holes, and the first nut is sleeved thereon.

4. The wear-free hard-sealed ball valve according to claim 1, characterized in that: The compression pad and the second flange are in contact with each other.

5. The wear-free hard-sealed ball valve according to claim 1, characterized in that: The cross section of the mounting plate is arc-shaped, and the cross section of the mounting frame is U-shaped.

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