Ball valve convenient to replace

Abstract

The utility model relates to a ball valve convenient to replace, which comprises a valve body, a valve core is arranged in the valve body, the top of the valve core is fixedly connected with a valve, a valve rod penetrates through the valve body, the top of the valve rod is fixedly connected with a limiting rod, the limiting rod is sleeved with a clamping sleeve, the clamping sleeve is fixedly connected with a handle, and the handle is fixedly connected with the valve core. A clamping sleeve is arranged on the outer portion of the handle, a limiting rod is arranged on the clamping sleeve, a mounting groove is formed in the limiting rod, a lifting adjusting assembly is arranged in the mounting groove in a penetrating mode, a limiting assembly used for abutting against the clamping sleeve is further arranged in the mounting groove, and the limiting assembly is used in cooperation with the lifting adjusting assembly. Then the lifting adjusting assembly is controlled, a Russian person can drive the limiting assembly to move, the clamping sleeve is installed on the outer portion of the limiting rod in a limiting mode through the limiting assembly, and therefore the grip on the valve body can be replaced conveniently and rapidly.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to ball valves that are easy to replace. Background Technology

[0002] A ball valve is a valve in which the opening and closing element (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.

[0003] In the prior art, Chinese patent with publication number CN201982709U discloses a threaded ball valve, which includes a ball valve body and a switch handle. The ball valve body has sealing rings and internal threads on both the front and rear ends, and a switch handle is provided at the top middle of the ball valve body.

[0004] Like most ball valves on the market, the ball valve in this patent has its switch handle (grip) directly fixed or bolted to the valve body. When the handle is damaged or needs to be replaced with a different size handle, it is necessary to disassemble the handle with a tool, which makes the whole operation process quite cumbersome. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a ball valve that is easy to replace.

[0006] The technical solution adopted by this utility model is: an easy-to-replace ball valve, including a valve body, a valve core provided in the valve body, a valve fixedly connected to the top of the valve core, a valve stem passing through the valve body, a limit rod fixedly connected to the top of the valve stem, a snap-fit ​​sleeve sleeved on the outside of the limit rod, a handle fixedly connected to the outside of the snap-fit ​​sleeve, an installation groove provided in the limit rod, a lifting adjustment component passing through the installation groove, and a limit component for abutting the snap-fit ​​sleeve in the installation groove, the limit component and the lifting adjustment component working together.

[0007] By adopting the above technical solution, the grip can be installed by fitting the snap-fit ​​sleeve onto the outside of the preferred lever. Then, by controlling the lifting adjustment component, the valve body can move the limiting component, which limits the snap-fit ​​sleeve to be installed outside the limiting lever. Therefore, in this embodiment, the grip on the valve body can be replaced conveniently and quickly.

[0008] The present invention is further configured such that the lifting adjustment assembly includes a lifting column slidably connected in the mounting groove and a conical block fixedly connected to the bottom of the lifting column. A limit ring is fixedly connected to the outside of the lifting column, and two locking interfaces are provided on the outside of the lifting column. A pin is rotatably connected to the top of the limit rod, a locking plate is fixedly connected to the outside of the pin, a torsion spring is sleeved on the outside of the pin, and a limit block is also fixedly connected to the top of the limit rod.

[0009] By adopting the above technical solution, the limiting component can be abutted by the lifting control of the conical block, thereby realizing the limiting installation of the snap-fit ​​sleeve. Then, the snap-fit ​​position can be locked by the snap-fit ​​plate and the snap-fit ​​interface.

[0010] A further feature of this invention is that a pressing rod is fixedly connected to the top of the lifting column, and a first spring is connected between the conical block and the mounting groove.

[0011] Using the above technical solution, the lifting column can be easily operated and adjusted by pressing the lever, and the first spring plays a reset role.

[0012] The present invention is further configured such that the limiting component includes a limiting post that passes through the mounting groove and the limiting rod, a fixing ring that is fixedly connected to the outside of the limiting post, and a second spring that is sleeved on the outside of the limiting post, wherein the two ends of the second spring are fixedly connected to the fixing ring and the inner wall of the mounting groove, respectively.

[0013] Using the above technical solution, the pressing rod drives the conical block to move upward, and the outside of the conical block abuts against the limiting post, thereby allowing the limiting post to extend and limit the vertical direction of the snap-fit ​​sleeve.

[0014] A further feature of this invention is that the limiting rod has a polygonal structure, and the inner cavity of the snap-fit ​​sleeve fits against the outer wall of the limiting rod.

[0015] The above technical solution facilitates the rotation of the limit rod and valve stem when the rotating snap sleeve is rotated.

[0016] A further feature of this invention is that the diameter of the limiting ring is larger than the diameter of the lifting column.

[0017] The above technical solution facilitates the blocking of the snap-fit ​​plate by using the limiting ring.

[0018] A further feature of this invention is that the end of the limiting post near the conical block is a spherical structure, and the conical block is a frustum-shaped structure.

[0019] Using the above technical solution, the spherical structure at the end of the limiting post facilitates the blocking of the conical block.

[0020] The beneficial effects of this utility model are as follows: Compared with the prior art, in this utility model, the grip is installed by fitting the snap-fit ​​sleeve onto the outside of the preferred lever. Then, by controlling the lifting adjustment component, the Russian can drive the limiting component to move. The limiting component limits the snap-fit ​​sleeve to be installed outside the limiting lever. Therefore, in this embodiment, the grip on the valve body can be replaced conveniently and quickly, and the operation process is quick and convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 3 yes Figure 2 Enlarged structural diagram of region A in the middle;

[0024] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0025] Figure 5 yes Figure 4 A magnified structural diagram of region B in the middle;

[0026] Figure 6 This is a schematic diagram of the conical block in this utility model;

[0027] Figure 7 This is a schematic diagram of the grip structure in this utility model;

[0028] Figure 8 This is a schematic diagram of the valve body after the handle has been replaced in this utility model.

[0029] The components in the diagram are labeled as follows: 1. Valve body; 2. Valve stem; 3. Handle; 4. Limiting rod; 5. Pressing rod; 6. Lifting column; 7. Limiting ring; 8. Snap-fit ​​interface; 9. Snap-fit ​​plate; 10. Limiting block; 11. Pin; 12. Torsion spring; 13. Conical block; 14. First spring; 15. Mounting groove; 16. Snap-fit ​​sleeve; 17. Limiting column; 18. Retaining ring; 19. Second spring; 20. Valve core. Detailed Implementation

[0030] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is in conjunction with the appendix Figure 1-8 The present invention will be further described below.

[0033] In order to solve the problems existing in the background art, this application proposes the following technical solution: a ball valve that is easy to replace, including a valve body 1, a valve core 20 is provided inside the valve body 1, a valve is fixedly connected to the top of the valve core 20, and a valve stem 2 passes through the valve body 1.

[0034] In the specific technical solution, a limiting rod 4 is fixedly connected to the top of the valve stem 2. A snap-fit ​​sleeve 16 is sleeved on the outside of the limiting rod 4. The limiting rod 4 has a polygonal structure. The inner cavity of the snap-fit ​​sleeve 16 fits against the outer wall of the limiting rod 4. In this embodiment, the limiting rod 4 has a hexagonal structure.

[0035] In a further design, a handle 3 is fixedly connected to the outside of the snap-fit ​​sleeve 16, and an installation groove 15 is provided inside the limit rod 4. A lifting adjustment component is provided through the installation groove 15, and a limit component for abutting the snap-fit ​​sleeve 16 is also provided in the installation groove 15. The limit component and the lifting adjustment component are used together.

[0036] Specifically, the lifting adjustment assembly includes a lifting column 6 slidably connected in the mounting groove 15 and a conical block 13 fixedly connected to the bottom of the lifting column 6. The conical block 13 is used to abut against the limiting column 17 in the limiting assembly. The conical block 13 has a frustum-shaped structure. A limiting ring 7 is fixedly connected to the outside of the lifting column 6. The diameter of the limiting ring 7 is larger than the diameter of the lifting column 6. Under the action of the limiting ring 7, when the lifting column 6 moves downward, the limiting ring 7 can abut against the top of the snap-fit ​​plate 9 to form a blockage.

[0037] The lifting column 6 has two locking interfaces 8 on its exterior. The top of the limiting rod 4 is rotatably connected to a pin 11. The pin 11 is fixedly connected to a locking plate 9. A torsion spring 12 is sleeved on the outside of the pin 11. Under the torsion of the torsion spring 12, the locking plate 9 can rotate towards the lifting column 6. The top of the limiting rod 4 is also fixedly connected to a limiting block 10, which is used to block the locking plate 9. In addition, the top of the lifting column 6 is fixedly connected to a pressing rod 5. A first spring 14 is connected between the conical block 13 and the mounting groove 15.

[0038] The above technical solution is explained as follows: Insert the snap-fit ​​sleeve 16 on the handle 3 into the outside of the limiting rod 4, then pull the pressing rod 5 upward, and then under the action of the torsion spring 12, the snap-fit ​​plate 9 snaps into the snap-fit ​​interface 8 on the outside of the lifting column 6, thus restricting the lifting column 6.

[0039] In a further design, the limiting component in this embodiment includes a limiting post 17 that passes through the mounting groove 15 and the limiting rod 4, a fixing ring 18 fixedly connected to the outside of the limiting post 17, and a second spring 19 sleeved on the outside of the limiting post 17. The end of the limiting post 17 near the conical block 13 is a spherical structure. The two ends of the second spring 19 are fixedly connected to the fixing ring 18 and the inner wall of the mounting groove 15, respectively. This allows the pressing rod 5 to drive the conical block 13 to move upward, and the outside of the conical block 13 to abut against the limiting post 17, thereby allowing the limiting post 17 to extend and limit the vertical direction of the snap-fit ​​sleeve 16.

[0040] To ensure that those skilled in the art can fully understand the technical solution, this embodiment is summarized as follows:

[0041] When in use, valve body 1 is installed on the pipeline;

[0042] Then insert the snap-fit ​​sleeve 16 on the handle 3 into the outside of the limiting rod 4, and then pull the pressing rod 5 upward to make the pressing rod 5 drive the cone block 13 to move upward. The outside of the cone block 13 abuts against the limiting post 17, thereby allowing the limiting post 17 to extend and limit the snap-fit ​​sleeve 16 in the vertical direction.

[0043] Then, under the action of the torsion spring 12, the snap plate 9 snaps onto the snap interface 8 on the outside of the lifting column 6, thus restricting the lifting column 6 (snap into the lowest positioning hole).

[0044] When the handle 3 needs to be replaced or disassembled, simply rotate the locking plate 9 so that it is no longer engaged with the positioning port. Then, under the tension of the first spring 14, the conical block 13 and the lifting column 6 can be pulled downwards, so that the lifting column 6 and the conical block 13 no longer abut against the limiting post 17. Then, under the tension of the second spring 19, the limiting post 17 retracts into the mounting groove 15. Finally, the locking sleeve 16 and the handle 3 can be removed upwards. (Refer to the attached document.) Figure 8 3. For grips of other shapes after replacement.

[0045] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

[0047] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A replaceable ball valve, comprising a valve body (1), wherein a valve core (20) is provided inside the valve body (1), and a valve stem (2) is fixedly connected to the top of the valve core (20), the valve stem (2) penetrating the valve body (1), characterized in that, The valve stem (2) is fixedly connected to a limiting rod (4), and a snap-fit ​​sleeve (16) is sleeved on the outside of the limiting rod (4). A handle (3) is fixedly connected to the outside of the snap-fit ​​sleeve (16). The limiting rod (4) is provided with an installation groove (15), and a lifting adjustment component is provided through the installation groove (15). The installation groove (15) is also provided with a limiting component for abutting the snap-fit ​​sleeve (16). The limiting component is used in conjunction with the lifting adjustment component.

2. The replaceable ball valve according to claim 1, characterized in that, The lifting adjustment assembly includes a lifting column (6) slidably connected in the mounting groove (15) and a conical block (13) fixedly connected to the bottom of the lifting column (6). A limit ring (7) is fixedly connected to the outside of the lifting column (6). Two card interfaces (8) are provided on the outside of the lifting column (6). A pin (11) is rotatably connected to the top of the limit rod (4). A card plate (9) is fixedly connected to the outside of the pin (11). A torsion spring (12) is sleeved on the outside of the pin (11). A limit block (10) is also fixedly connected to the top of the limit rod (4).

3. The easily replaceable ball valve according to claim 2, characterized in that, A pressing rod (5) is fixedly connected to the top of the lifting column (6), and a first spring (14) is connected between the conical block (13) and the mounting groove (15).

4. The easily replaceable ball valve according to claim 3, characterized in that, The limiting assembly includes a limiting post (17) that passes through the mounting groove (15) and the limiting rod (4), a fixing ring (18) that is fixedly connected to the outside of the limiting post (17), and a second spring (19) that is sleeved on the outside of the limiting post (17). The two ends of the second spring (19) are fixedly connected to the fixing ring (18) and the inner wall of the mounting groove (15), respectively.

5. The replaceable ball valve according to claim 4, characterized in that, The limiting rod (4) has a polygonal structure, and the inner cavity of the snap sleeve (16) fits against the outer wall of the limiting rod (4).

6. The easily replaceable ball valve according to claim 5, characterized in that, The diameter of the limiting ring (7) is greater than the diameter of the lifting column (6).

7. The replaceable ball valve according to claim 6, characterized in that, The end of the limiting post (17) near the conical block (13) is a spherical structure, and the conical block (13) is a frustum-shaped structure.

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