Ball valve convenient to adjust

Abstract

The utility model discloses a ball valve convenient to adjust in the technical field of ball valves. The ball valve comprises a ball valve body, water inlet pipes are assembled on the two sides of the ball valve body, communicating pipes are installed at the ends of the water inlet pipes, and a valve rod is assembled at the top end of the ball valve body; a hand wheel is assembled at the top end of the valve rod; an adjusting expansion mechanism is assembled on the outer wall of the hand wheel; the expanding mechanism comprises a rotating hole formed in the side wall of the top end of the hand wheel, and a rotating rod is assembled in the rotating hole; an expansion groove is formed in the outer wall of the hand wheel, an L-shaped adjusting rod is assembled in the expansion groove, and the end of the L-shaped adjusting rod is hinged to the outer portion of the rotating rod. According to the ball valve convenient to adjust, the extending movable structure equivalently increases a rotating force arm of the hand wheel, so that the hand wheel is more labor-saving and convenient to rotate, and the problem that when the hand wheel of the ball valve is operated, due to putty attached to the hand wheel, the hand is prone to slipping when a worker rotates the hand wheel, and the hand wheel is relatively troublesome to rotate is solved.

Description

Technical Field

[0001] This patent relates to the field of ball valve technology, specifically a ball valve that is easy to adjust. 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 be used for fluid regulation and control. Among them, the hard-sealed V-type ball valve has a strong shear force between the 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] However, the ball valve in the prior art still has some shortcomings. For example, a layer of putty will adhere to the surface of the pipeline used for transporting oil due to the working environment after long-term use. The surface of the ball valve installed on the pipeline will inevitably adhere to a layer of putty. When the hand wheel of the ball valve needs to be adjusted, the staff will easily slip their hands when turning the hand wheel due to the putty attached to the hand wheel, making it difficult to adjust. Therefore, the prior art needs to be improved.

[0004] Patent content

[0005] The purpose of this patent is to provide a ball valve that is easy to adjust, so as to solve the problem mentioned in the above background technology that a layer of putty will adhere to the surface of the pipeline used for transporting oil due to the working environment after long-term use, and the surface of the ball valve installed on the pipeline will inevitably adhere to a layer of putty. When the hand wheel of the ball valve needs to be adjusted, the staff will easily slip their hands when turning the hand wheel due to the putty attached to the hand wheel, making it difficult to adjust.

[0006] To achieve the above purpose, this patent provides the following technical solutions: a ball valve that is easy to adjust, including a ball valve body, both sides of the ball valve body are equipped with water inlet pipes, the ends of the water inlet pipes are installed with connecting pipes, and the top of the ball valve body is equipped with a valve stem;

[0007] The top end of the valve stem is equipped with a hand wheel, and the outer wall of the hand wheel is equipped with an adjustment and expansion mechanism;

[0008] The expansion mechanism comprises a rotating hole provided on the side wall of the top end of the hand wheel, and a rotating rod is installed in the rotating hole;

[0009] An expansion slot is provided on the outer wall of the hand wheel, an L-shaped adjustment rod is installed inside the expansion slot, and an end of the L-shaped adjustment rod is hinged to the outside of the rotating rod;

[0010] A sealing cover is sleeved between the connecting pipe and the water inlet pipe.

[0011] Preferably, a rubber tube is sleeved on the outside of the L-shaped adjusting rod, and rubber bumps are evenly arranged on the outer wall of the rubber tube. Limiting rings are installed on both sides of the rubber tube outside the L-shaped adjusting rod.

[0012] Preferably, there is an interference fit between the outer wall of the rotating rod and the inner wall of the rotating hole.

[0013] Preferably, both side walls of the sealing cover are provided with sealing openings, the connecting pipe is inserted into the sealing opening on the left side, the water inlet pipe is inserted into the sealing opening on the right side, and a sealing gasket is provided inside the sealing cover at the sealing opening on the right side, and the sealing gasket is sleeved on the outside of the water inlet pipe.

[0014] Preferably, the sealing gasket ring comprises a sealing gasket a and a sealing gasket b, a fixing ring is installed on the side wall of the sealing gasket a facing the sealing gasket b, and sealing blocks are evenly installed on the outer wall of the fixing ring.

[0015] Preferably, a water collecting cover is installed at one end of the connecting pipe located inside the sealing cover, the end of the water inlet pipe is inserted into the water collecting cover, the outer wall of the water inlet pipe is provided with an external thread, and the inner wall of the sealing cover is provided with an internal thread.

[0016] Preferably, a mounting plate is clamped on the outside of the connecting pipe, a mounting thread is provided on the outer wall of the connecting pipe, and positioning rings are installed on both sides of the sealing cover.

[0017] Compared with the prior art, the beneficial effects of this patent are: the ball valve which is easy to adjust has a reasonable structural design; by arranging an expansion mechanism on the outer wall of the ball valve stem handwheel, the ball valve can be hidden in the expansion slot when the ball valve is not adjusted, and can be rotated outward when adjustment is required, and the extended movable structure is equivalent to increasing the turning force arm of the handwheel, making the rotation of the handwheel more labor-saving and convenient, and solving the problem that when operating the handwheel of the ball valve, the staff's hands are easily slipped when turning the handwheel due to the putty attached to the handwheel, which makes the rotation of the handwheel more troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of this patent;

[0019] Figure 2 This is a schematic diagram of the connection between the water inlet pipe and the connecting pipe of this patent;

[0020] Figure 3 This is a top view of the hand wheel of this patent;

[0021] Figure 4 This is a cross-sectional view of the sealing cover of this patent.

[0022] In the figure: 1 ball valve body, 2 water inlet pipe, 3 connecting pipe, 4 valve stem, 5 hand wheel, 6 mounting thread, 7 mounting plate, 8 sealing cover, 9 limiting ring, 10 external thread, 11 internal thread, 12 sealing port, 13 sealing gasket a, 14 fixing ring, 15 sealing block, 16 sealing gasket b, 17 water collecting cover, 18 rotating rod, 19 rotating hole, 20 expansion slot, 21 L-shaped adjusting rod, 22 rubber protrusion, 23 rubber tube, 24 limiting ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] See also Figure 1-4 , this patent provides a technical solution:

[0025] In the technical scheme, a ball valve that is easy to adjust includes a ball valve body 1, both sides of the ball valve body 1 are equipped with water inlet pipes 2, the ends of the water inlet pipes 2 are installed with connecting pipes 3, and the top of the ball valve body 1 is equipped with a valve stem 4;

[0026] The top end of the valve stem 4 is equipped with a hand wheel 5, and the outer wall of the hand wheel 5 is equipped with an adjustment and expansion mechanism;

[0027] The expansion mechanism includes a rotating hole 19 opened on the top side wall of the hand wheel 5, and a rotating rod 18 is installed in the rotating hole 19;

[0028] The outer wall of the hand wheel 5 is provided with an expansion slot 20, and an L-shaped adjustment rod 21 is installed inside the expansion slot 20, and the end of the L-shaped adjustment rod 21 is hinged to the outside of the rotating rod 18;

[0029] A sealing cover 8 is provided between the connecting pipe 3 and the water inlet pipe 2;

[0030] In this technical solution, two water inlet ends are provided on both side walls of the ball valve body 1, and each water inlet end is equipped with a water inlet pipe 2, and is connected to the use pipeline through a connecting pipe 3. The connecting pipe 3 and the water inlet pipe 2 are connected through a sealing cover 8, and the opening and closing of the ball valve are adjusted by the valve stem 4. The valve stem 4 is rotated by the hand wheel 5. The outer wall of the hand wheel 5 is triangular and is equipped with an adjustment and expansion mechanism. A rotating hole 19 is provided on the outer ring side wall at the top of the force-bearing part 5, and the rotating rod 18 can rotate in the rotating hole 19. The expansion slot 20 is arranged on the side wall of the hand wheel 5 and is connected to the rotating hole 19. The short rod of the L-shaped adjusting rod 21 is fixed on the outside of the rotating rod 18. When not in use, the L-shaped adjusting rod 21 can be stored in the expansion slot 20, and can be rotated outward when needed, and the L-shaped adjusting rod 21 can be pressed against the edge of the expansion slot 20 to limit the rotation out.

[0031] In some technical solutions, reference Figure 1-4 The L-shaped adjusting rod 21 is provided with a rubber tube 23 on the outside, and the outer wall of the rubber tube 23 is evenly provided with rubber bumps 22. The outside of the L-shaped adjusting rod 21 is located on both sides of the rubber tube 23 and is installed with a limiting ring 24;

[0032] In this technical solution, the setting of the rubber tube 23 facilitates the operation of the L-shaped adjusting rod 21, and the setting of the rubber protrusion 22 prevents slipping when operating the rubber tube 23. The setting of the limit ring 24 prevents the rubber tube 23 from falling off the L-shaped adjusting rod 21.

[0033] In some technical solutions, reference Figure 1-4 , the outer wall of the rotating rod 18 and the inner wall of the rotating hole 19 are interference fit;

[0034] In this technical solution, due to the interference fit between the rotating rod 18 and the rotating hole 19, the rotating rod 18 can remain stationary in the rotating hole 19 when it is not rotated.

[0035] In some technical solutions, reference Figure 1-4 The two side walls of the sealing cover 8 are provided with sealing openings 12, the connecting pipe 3 is inserted into the left sealing opening 12, the water inlet pipe 2 is inserted into the right sealing opening 12, and a sealing gasket is provided inside the sealing cover 8 at the right sealing opening 12, and the sealing gasket is sleeved on the outside of the water inlet pipe 2;

[0036] In this technical solution, the connecting pipe 3 and the water inlet pipe 2 are connected by a sealing cover 8, and the gap between the water inlet pipe 2 and the sealing port 12 is sealed by a sealing gasket.

[0037] In some technical solutions, reference Figure 1-4 The sealing gasket ring includes a sealing gasket a13 and a sealing gasket b16. A fixing ring 14 is installed on the side wall of the sealing gasket a13 facing the sealing gasket b16, and sealing blocks 15 are evenly installed on the outer wall of the fixing ring 14.

[0038] In this technical solution, the outer diameters of the rubber pad a 13 and the rubber pad b 16 are larger than the inner diameter of the sealing opening 12 .

[0039] In some technical solutions, reference Figure 1-4 The end of the connecting pipe 3 located inside the sealing cover 8 is installed with a water collecting cover 17, the end of the water inlet pipe 2 is inserted into the water collecting cover 17, the outer wall of the water inlet pipe 2 is provided with an external thread 10, and the inner wall of the sealing cover 8 is provided with an internal thread 11;

[0040] In this technical solution, the outer diameter of the water collecting cover 17 is larger than the inner diameter of the sealing opening 12 , and the inner thread 11 and the outer thread 10 are matched with each other.

[0041] In some technical solutions, reference Figure 1-4 The connecting pipe 3 is externally clamped with a mounting plate 7, the outer wall of the connecting pipe 3 is provided with a mounting thread 6, and positioning rings 9 are installed on both sides of the sealing cover 8;

[0042] In this technical solution, the connecting pipe 3 can be connected to an external water pipe through the installation thread 6 on the outer wall.

[0043] Working principle: When in use, first, connect the water inlet pipe 2 and the connecting pipe 3 through the sealing cover 8, then install the connecting pipe 3 until it is specified, and then install the ball valve body 1. The flow of the ball valve body 1 can be adjusted by rotating the force 5. When the handwheel 5 is not convenient for adjustment, the L-shaped adjustment rod 21 in the expansion slot 20 can be rotated outward, and the outer wall of the L-shaped adjustment rod 21 can be pressed against the edge of the expansion slot 20, and the handwheel 5 can be rotated by the L-shaped adjustment rod 21 to adjust.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although the present invention has been described above with reference to the embodiments, various modifications may be made to the embodiments and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in the present specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ball valve that is easy to adjust, comprising a ball valve body (1), characterized in that: Water inlet pipes (2) are installed on both sides of the ball valve body (1), connecting pipes (3) are installed at the ends of the water inlet pipes (2), and a valve stem (4) is installed at the top end of the ball valve body (1); The top end of the valve stem (4) is equipped with a hand wheel (5), and the outer wall of the hand wheel (5) is equipped with an adjustment and expansion mechanism; The expansion mechanism comprises a rotating hole (19) formed on a side wall of a top end of the hand wheel (5), wherein a rotating rod (18) is mounted in the rotating hole (19); An expansion slot (20) is formed on the outer wall of the hand wheel (5), an L-shaped adjustment rod (21) is mounted inside the expansion slot (20), and an end of the L-shaped adjustment rod (21) is hinged to the outside of the rotating rod (18); A sealing cover (8) is sleeved between the connecting pipe (3) and the water inlet pipe (2).

2. The ball valve according to claim 1, characterized in that: The L-shaped adjusting rod (21) is sleeved with a rubber tube (23) on its exterior, the outer wall of the rubber tube (23) is evenly provided with rubber bumps (22), and the exterior of the L-shaped adjusting rod (21) is provided with limiting rings (24) on both sides of the rubber tube (23).

3. The ball valve according to claim 1, characterized in that: An interference fit is formed between the outer wall of the rotating rod (18) and the inner wall of the rotating hole (19).

4. The ball valve according to claim 1, characterized in that: The sealing cover (8) is provided with sealing openings (12) on both side walls, the connecting pipe (3) is inserted into the sealing opening (12) on the left side, the water inlet pipe (2) is inserted into the sealing opening (12) on the right side, and a sealing gasket is provided inside the sealing cover (8) at the sealing opening (12) on the right side, and the sealing gasket is sleeved on the outside of the water inlet pipe (2).

5. The ball valve according to claim 4, characterized in that: The sealing gasket ring comprises a sealing gasket a (13) and a sealing gasket b (16); a fixing ring (14) is installed on the side wall of the sealing gasket a (13) facing the sealing gasket b (16); and sealing blocks (15) are evenly installed on the outer wall of the fixing ring (14).

6. The ball valve according to claim 4, characterized in that: A water collecting cover (17) is installed at one end of the connecting pipe (3) located inside the sealing cover (8), and the end of the water inlet pipe (2) is inserted into the water collecting cover (17). The outer wall of the water inlet pipe (2) is provided with an external thread (10), and the inner wall of the sealing cover (8) is provided with an internal thread (11).

7. The ball valve according to claim 1, characterized in that: The connecting pipe (3) is externally clamped with a mounting plate (7), the outer wall of the connecting pipe (3) is provided with mounting threads (6), and positioning rings (9) are installed on both sides of the sealing cover (8).

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