Ceramic ball valve

Abstract

The utility model relates to a ceramic ball valve which comprises a valve body, a valve element is arranged in the valve body, the top of the valve element is fixedly connected with a valve rod, the valve rod penetrates through the valve body, the top of the valve rod is fixedly connected with a guide rod, and the guide rod is sleeved with a lifting sleeve in a sliding mode. According to the utility model, after the valve body is installed, the height of the valve body is adjusted outside the guide rod through the lifting sleeve, so that the operation on the valve body under different conditions can be met, and the valve body is convenient to operate. If the installation space of the valve is narrow, the lifting sleeve can penetrate through the narrow space by operating the lifting sleeve, so that follow-up operation of a worker on the valve body is facilitated, and the valve body can be fixed in an abutting mode through the abutting assembly after adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ceramic ball valve. Background Art

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. Among them, the hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc.

[0003] In the prior art, a Chinese patent with announcement number CN213236151U discloses a ceramic ball valve, comprising a valve body, the valve body is connected to a valve cover, the valve cover comprises a shell and a valve stem, the valve stem is placed in the shell and rotatably connected to the shell, the upper end of the valve stem is connected to the actuator, the lower end of the valve stem extends into the valve body, a sealing packing is provided between the valve stem and the valve body, a valve seat is provided in the valve body, a ball is provided on the inner side of the valve seat, the lower end of the valve stem is connected to the ball, the cross-section of the valve seat is a connected bending type, comprising a first bending section, a second bending section, and a third bending section, a first sealing member is provided on the first bending section, the first sealing member is fixedly connected to the first bending section through a first elastic member, the third bending section is provided with a second sealing member, the second sealing member is fixed to the bottom end of the ball, a second elastic member is provided below the second sealing member, and the second elastic member is fixed to the third bending section.

[0004] The ball valve in this patent is mostly the same as the existing ball valves. The valve stem of the ball valve in this patent cannot be adjusted in length and cannot meet diversified uses. For example, if the environment in which the ball valve is installed is small, it is inconvenient for workers to operate the opening and closing of the ball valve by hand. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a ceramic ball valve.

[0006] The technical solution adopted by the utility model is: a ceramic ball valve, including a valve body, a valve core is arranged in the valve body, a valve stem is fixedly connected to the top of the valve core, the valve stem passes through the valve body, a guide rod is fixedly connected to the top of the valve stem, a lifting sleeve is arranged on the outer sliding sleeve of the guide rod, a resistance component for resisting the guide rod is arranged on the outside of the lifting sleeve, and a handle is fixedly connected to the top of the lifting sleeve.

[0007] By adopting the above technical solution, after the valve body is installed, the height can be adjusted on the outside of the guide rod through the lifting sleeve, so as to meet the operation of the valve body in different situations. For example, if the valve installation space is small, the lifting sleeve can be operated to allow the lifting sleeve to pass through the narrow space, so it is convenient for subsequent staff to operate the valve body, and after adjustment, it can be fixed by the resistance component.

[0008] The utility model is further configured as follows: the outside of the lifting sleeve is provided with an external thread, the outside of the lifting sleeve is connected to a threaded sleeve via the external thread, and the side wall of the threaded sleeve is rotatably connected to a tapered sleeve.

[0009] By adopting the above technical solution, the tapered sleeve can be driven to be raised and lowered by rotating the threaded sleeve.

[0010] The utility model is further configured as follows: an annular sliding groove is provided on the outer wall of the tapered sleeve, an annular sliding block is fixedly connected to the inner wall of the threaded sleeve, and the annular sliding block is slidably connected in the annular sliding groove.

[0011] By adopting the above technical solution, the rotational connection between the threaded sleeve and the tapered sleeve can be achieved through the cooperation between the annular slide bar and the annular slide groove, so that when the threaded sleeve is rotated, the tapered sleeve can be driven to move upward or downward synchronously.

[0012] The utility model is further configured as follows: an inner wall of the lifting sleeve is provided with a mounting hole, the resistance assembly includes a resistance rod arranged in the mounting hole, a fixing ring fixedly connected in the mounting hole, and a spring sleeved on the outside of the resistance rod, and the two ends of the spring are respectively fixedly connected to the fixing ring and the resistance rod.

[0013] By adopting the above technical solution, the conical sleeve is used to resist the resistance rod, and the resistance rod resists the outside of the guide rod, so a resistance fixation is formed, so that the lifting sleeve is firmly installed on the outside of the guide rod. When the conical sleeve no longer resists the rod, the resistance rod can be retracted under the action of the spring and no longer resists the guide rod.

[0014] The utility model is further configured as follows: the end of the interference rod is a spherical structure.

[0015] By adopting the above technical solution, it is convenient for the conical sleeve to interfere with the interference rod.

[0016] The utility model is further configured as follows: the guide rod is a polygonal structure, and the inner cavity of the lifting sleeve is fitted with the outer portion of the guide rod.

[0017] By adopting the above technical solution, when the lifting sleeve rotates, the guide rod is driven to rotate synchronously.

[0018] The utility model is further configured as follows: at least one shifting rod is fixedly connected to the outside of the threaded sleeve.

[0019] By adopting the above technical solution, it is convenient to rotate the threaded sleeve.

[0020] The beneficial effect of the utility model is that compared with the prior art, in the utility model, after the valve body is installed, the height is adjusted by the lifting sleeve on the outside of the guide rod, so as to meet the operation of the valve body in different situations. For example, if the valve installation space is small, the lifting sleeve can be operated to allow the lifting sleeve to pass through the narrow space, so it is convenient for subsequent staff to operate the valve body, and after adjustment, it can be fixed by the resistance component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the guide rod and the lifting sleeve in the utility model;

[0025] Figure 5 yes Figure 4 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the lifting sleeve in the utility model.

[0027] The markings in the figure are: 1. valve body; 2. valve core; 3. valve stem; 4. guide rod; 5. lifting sleeve; 6. external thread; 7. threaded sleeve; 8. tapered sleeve; 9. annular slider; 10. annular slide groove; 11. mounting hole; 12. spring; 13. fixing ring; 14. resistance rod. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 direct connection,

[0030] It can also be indirectly connected through an intermediate medium, which can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] The following is combined with Figure 1-6 The utility model is further described.

[0032] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a ceramic ball valve, comprising a valve body 1, a valve core 2 is arranged in the valve body 1, a valve stem 3 is fixedly connected to the top of the valve core 2, and the valve stem 3 passes through the valve body 1.

[0033] In the specific technical solution, a guide rod 4 is fixedly connected to the top of the valve stem 3. The guide rod 4 is a polygonal structure. The inner cavity of the lifting sleeve 5 fits with the outer portion of the guide rod 4. This design makes it convenient to drive the guide rod 4 to rotate when the lifting sleeve 5 is rotated. In this embodiment, the guide rod 4 is a hexagonal structure.

[0034] Among them, a lifting sleeve 5 is provided on the external sliding sleeve of the guide rod 4, and a resistance component for resisting the guide rod 4 is provided on the outside of the lifting sleeve 5. A handle is fixedly connected to the top of the lifting sleeve 5. The lifting sleeve 5 is rotated by rotating the handle, and then the guide rod 4 and the valve stem 3 are driven to rotate, thereby driving the valve core 2 to rotate.

[0035] In this embodiment, the abutment assembly is used to abut and fix the adjusted guide sleeve so that the guide sleeve is firmly sleeved on the outside of the valve stem 3 .

[0036] Among them, an external thread 6 is provided on the outside of the lifting sleeve 5, and the outside of the lifting sleeve 5 is connected to a threaded sleeve 7 through the external thread 6. In order to facilitate rotation, at least one lever is fixedly connected to the outside of the threaded sleeve 7. Four levers are provided in this embodiment. The side wall of the threaded sleeve 7 is rotatably connected to a tapered sleeve 8, and the tapered sleeve 8 is used to resist the interference rod 14. An annular groove 10 is also provided on the outer wall of the tapered sleeve 8. An annular slider 9 is fixedly connected to the inner wall of the threaded sleeve 7, and the annular slider 9 is slidably connected in the annular groove 10.

[0037] The specific resistance component is as follows: a mounting hole 11 is provided on the inner wall of the lifting sleeve 5, and the resistance component includes a resistance rod 14 arranged in the mounting hole 11, a fixing ring 13 fixedly connected in the mounting hole 11, and a spring 12 sleeved on the outside of the resistance rod 14, and the two ends of the spring 12 are respectively fixedly connected to the fixing ring 13 and the resistance rod 14. In order to facilitate the resistance, the end of the resistance rod 14 is a spherical structure.

[0038] In order for those skilled in the art to fully understand the technical solution, this embodiment is summarized as follows:

[0039] When in use, the valve body 1 is installed on the pipeline, and then the guide rod 4 is driven to rotate by operating the lifting sleeve 5, and the guide rod 4 drives the valve core 2 to rotate, so that the valve body 1 can be opened and closed;

[0040] If the height position of the lifting sleeve 5 needs to be adjusted, it is only necessary to rotate the threaded sleeve 7 to allow the threaded sleeve 7 to drive the conical sleeve 8 to move downward. Figure 4-5 , so that the conical sleeve 8 no longer interferes with the interference rod 14, so the fixation between the lifting sleeve 5 and the guide rod 4 can be released;

[0041] Then adjust the height of the lifting sleeve 5. After the adjustment is completed, rotate the threaded sleeve 7 again to allow the threaded sleeve 7 to drive the tapered sleeve 8 to move upward, and the tapered sleeve 8 will resist the resistance rod 14. The resistance rod 14 resists the outside of the guide rod 4, so that a resistance fixation is formed, so that the lifting sleeve 5 is firmly installed on the outside of the guide rod 4;

[0042] Then, the guide rod 4 and the valve stem 3 can be driven to rotate by rotating the lifting sleeve 5.

[0043] In summary, in this embodiment, the height of the lifting sleeve 5 can be adjusted to meet the needs of different situations. For example, if the valve installation space is small, the lifting sleeve 5 can be operated to allow the lifting sleeve 5 to pass through the narrow space, thereby facilitating subsequent staff to operate the valve body 1.

[0044] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0045] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ceramic ball valve, comprising a valve body (1), wherein a valve core (2) is arranged in the valve body (1), a valve stem (3) is fixedly connected to the top of the valve core (2), and the valve stem (3) passes through the valve body (1), characterized in that: The top of the valve stem (3) is fixedly connected to a guide rod (4), the external sliding sleeve of the guide rod (4) is provided with a lifting sleeve (5), the outside of the lifting sleeve (5) is provided with a resistance component for resisting the guide rod (4), and the top of the lifting sleeve (5) is fixedly connected to a handle.

2. The ceramic ball valve according to claim 1, characterized in that: The lifting sleeve (5) is provided with an external thread (6) on the outside, and the lifting sleeve (5) is connected to a threaded sleeve (7) on the outside via the external thread (6), and a conical sleeve (8) is rotatably connected to the side wall of the threaded sleeve (7).

3. The ceramic ball valve according to claim 2, characterized in that: The outer wall of the conical sleeve (8) is provided with an annular sliding groove (10), the inner wall of the threaded sleeve (7) is fixedly connected with an annular sliding block (9), and the annular sliding block (9) is slidably connected in the annular sliding groove (10).

4. The ceramic ball valve according to claim 3, characterized in that: The inner wall of the lifting sleeve (5) is provided with a mounting hole (11), and the resistance assembly comprises a resistance rod (14) arranged in the mounting hole (11), a fixing ring (13) fixedly connected in the mounting hole (11), and a spring (12) sleeved on the outside of the resistance rod (14), and the two ends of the spring (12) are respectively fixedly connected to the fixing ring (13) and the resistance rod (14).

5. The ceramic ball valve according to claim 4, characterized in that: The end of the interference rod (14) is a spherical structure.

6. The ceramic ball valve according to claim 5, characterized in that: The guide rod (4) is a polygonal structure, and the inner cavity of the lifting sleeve (5) and the outer portion of the guide rod (4) fit each other.

7. The ceramic ball valve according to claim 6, characterized in that: At least one shifting rod is fixedly connected to the outside of the threaded sleeve (7).

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