Quick opening and closing ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a quick opening and closing ball valve which comprises a valve pipe, a valve rod is rotationally installed in the valve pipe, a ball is installed at the lower end of the valve rod and located on the inner side of the valve pipe, a handle is fixedly connected to the upper end of the valve rod, and a rotation driving structure is arranged on the side wall of the valve pipe. The driving rotation structure comprises a fixing block fixedly connected to the side wall of the valve pipe, a rotating rod is rotationally connected to the interior of the fixing block, a gear is fixedly connected to the upper end of the rotating rod, a gear ring is fixedly connected to the side wall of the handle, and the tooth surface of the gear ring is meshed with the tooth surface of the gear. According to the utility model, the driving rotation structure is arranged, and the first sliding rod, the second sliding rod and the third sliding rod which are telescopic are arranged, so that the flexible torsion work of the handle on the ball valve at the high position is facilitated, the flexible opening and closing work of the ball valve at the high position is facilitated, and the opening and closing efficiency of the ball valve is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, and in particular to a fast-opening and closing ball valve. Background Technology

[0002] Ball valves are a common type of valve. They have good sealing performance, are suitable for various media, are flexible in opening and closing, can continuously adjust the flow rate, are small in size, light in weight, and easy to install. Ball valves are widely used in pipeline systems in industries such as petrochemicals, power, and water supply and drainage to achieve functions such as pipeline shut-off, regulation, and distribution. They are one of the most common industrial valves.

[0003] Existing technologies often have the following drawbacks: when ball valves are installed at a high position, it is inconvenient for operators to directly rotate the handle, making it difficult to quickly open and close the ball valve and thus reducing its opening and closing efficiency.

[0004] Therefore, this utility model provides a quick-opening and closing ball valve. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of quickly opening and closing ball valves installed at high locations, and to propose a ball valve for quick opening and closing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-opening and closing ball valve, comprising a valve tube, a valve stem rotatably mounted inside the valve tube, a ball mounted at the lower end of the valve stem, the ball being located inside the valve tube, a handle fixedly connected to the upper end of the valve stem, a drive structure provided on the side wall of the valve tube, the drive structure comprising a fixing block fixedly connected to the side wall of the valve tube, a rotating rod rotatably connected inside the fixing block, a gear fixedly connected to the upper end of the rotating rod, and a gear ring fixedly connected to the side wall of the handle, the tooth surface of the gear ring meshing with the tooth surface of the gear.

[0007] The effect achieved by the above components is that the rotating rod will rotate inside the fixed block, and the gear will drive the gear ring to twist, thereby realizing the twisting operation of the valve stem and handle, which facilitates the opening and closing control of the ball valve.

[0008] Preferably, the rotating rod is internally slidably connected to a first slide rod, the first slide rod is internally slidably connected to a second slide rod, and the second slide rod is internally slidably connected to a third slide rod.

[0009] The effect achieved by the above components is as follows: by setting up retractable first slide rod, second slide rod and third slide rod, it is convenient to flexibly twist the handle of the ball valve installed at a high position, thereby facilitating the flexible opening and closing of the ball valve installed at a high position and improving the opening and closing efficiency of the ball valve.

[0010] Preferably, a rotating block is fixedly connected to the lower end of the third slide rod.

[0011] The effect achieved by the above components is that while the rotating block is rotating, the rotating rod will rotate inside the fixed block.

[0012] Preferably, a mounting block is fixedly connected to the side wall of the rotating rod, a rotating bar is rotatably mounted on the lower surface of the mounting block, and a rubber block is glued to the upper surface of the rotating bar.

[0013] The effect achieved by the above components is that the rubber blocks improve the tightness of the temporary covering when the first slide bar, the second slide bar, and the third slide bar are retracted.

[0014] Preferably, the side wall of the valve tube is provided with an auxiliary structure, the auxiliary structure including a support rod fixedly connected to the side wall of the valve tube, a connecting cylinder fixedly connected to the upper end of the support rod, and a graphite block placed inside the connecting cylinder.

[0015] The effect achieved by the above components is that by setting up auxiliary structures, it is easier to lubricate the valve tube and handle, and further improves the opening and closing efficiency of the ball valve.

[0016] Preferably, a slider is slidably connected to the inner side of the connecting cylinder, a baffle is slidably connected inside the slider, and a spring is fixedly connected between the slider and the connecting cylinder.

[0017] The effect achieved by the above components is that the slider will be driven by the spring force to make the baffle stick against the surface of the graphite block.

[0018] Preferably, the surface of the slider is provided with a storage groove.

[0019] The effect achieved by the above components is to retract the end of the baffle frame into the inside of the storage groove, at which point the graphite block can be inserted into the inside of the connecting cylinder.

[0020] In summary:

[0021] 1. In this utility model, by setting a drive structure and by setting a retractable first slide rod, second slide rod and third slide rod, the handle of the ball valve installed at a high position is flexibly twisted, thereby facilitating the flexible opening and closing of the ball valve installed at a high position and improving the opening and closing efficiency of the ball valve.

[0022] 2. In this utility model, the baffle inside the slider is pulled out, and the end of the baffle is retracted into the inner side of the storage groove. At this time, the graphite block can be inserted into the inner side of the connecting cylinder. The slider is slid away from the valve tube, and the baffle slides out from the inner side of the storage groove. When the slider is released, the slider will be driven by the spring force to make the baffle stick to the surface of the graphite block. By setting the auxiliary structure, the flexible lubrication between the valve tube and the handle is facilitated, and the opening and closing efficiency of the ball valve is further improved. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 In this utility model Figure 1 A schematic diagram of a partial structure;

[0026] Figure 4 In this utility model Figure 1 Enlarged view of point A;

[0027] Figure 5 In this utility model Figure 3 Enlarged view of point B;

[0028] Figure 6 This is a schematic diagram of the slider in this utility model.

[0029] Legend: 1. Valve pipe; 2. Valve stem; 3. Handle; 4. Ball; 5. Drive mechanism; 501. Gear ring; 502. Rotating rod; 503. Gear; 504. Fixing block; 505. First slide rod; 506. Second slide rod; 507. Third slide rod; 508. Rotating block; 509. Mounting block; 510. Rotating bar; 511. Rubber block; 6. Auxiliary structure; 61. Connecting cylinder; 62. Support rod; 63. Graphite block; 64. Slider; 65. Baffle frame; 66. Spring; 67. Storage groove. Detailed Implementation

[0030] Reference Figure 1 As shown, this utility model provides a technical solution: a quick-opening and closing ball valve, including a valve pipe 1, a valve stem 2 rotatably installed inside the valve pipe 1, a ball 4 installed at the lower end of the valve stem 2, the ball 4 being located inside the valve pipe 1, a handle 3 fixedly connected to the upper end of the valve stem 2, a drive structure 5 provided on the side wall of the valve pipe 1, and an auxiliary structure 6 provided on the side wall of the valve pipe 1.

[0031] The specific configuration and function of its driving structure 5 and auxiliary structure 6 will be explained below.

[0032] Reference Figures 1-4As shown in this embodiment: the drive structure 5 includes a fixed block 504 fixedly connected to the side wall of the valve pipe 1. A rotating rod 502 is rotatably connected inside the fixed block 504. A gear 503 is fixedly connected to the upper end of the rotating rod 502. A gear ring 501 is fixedly connected to the side wall of the handle 3. The tooth surface of the gear ring 501 meshes with the tooth surface of the gear 503. The rotating rod 502 rotates inside the fixed block 504, and the gear 503 drives the gear ring 501 to twist, thereby realizing the twisting operation of the valve stem 2 and the handle 3, thus facilitating the opening and closing control of the ball valve. A first slide rod 505 is slidably connected inside the rotating rod 502. A second slide rod 506 is slidably connected inside the first slide rod 505. A third slide rod 507 is slidably connected inside the second slide rod 506. By incorporating retractable first slide rod 505, second slide rod 506, and third slide rod 507, the flexible rotation of the handle 3 on the ball valve installed at a high position is facilitated, thereby improving the opening and closing efficiency of the ball valve. A rotating block 508 is fixedly connected to the lower end of the third slide rod 507. While rotating the rotating block 508, the rotating rod 502 rotates inside the fixed block 504. A mounting block 509 is fixedly connected to the side wall of the rotating rod 502. A rotating strip 510 is rotatably mounted on the lower surface of the mounting block 509, and a rubber block 511 is glued to the upper surface of the rotating strip 510. The rubber block 511 improves the tightness of the temporary covering when the first slide rod 505, second slide rod 506, and third slide rod 507 are retracted.

[0033] Reference Figures 1-3 and Figures 5-6 As shown, specifically, the auxiliary structure 6 includes a support rod 62 fixedly connected to the side wall of the valve pipe 1. A connecting cylinder 61 is fixedly connected to the upper end of the support rod 62, and a graphite block 63 is placed inside the connecting cylinder 61. By setting the auxiliary structure 6, the flexible lubrication between the valve pipe 1 and the handle 3 is facilitated, further improving the opening and closing efficiency of the ball valve. A slider 64 is slidably connected to the inside of the connecting cylinder 61, and a retaining frame 65 is slidably connected inside the slider 64. A spring 66 is fixedly connected between the slider 64 and the connecting cylinder 61. The slider 64 is driven by the elastic force of the spring 66 to push the retaining frame 65 against the surface of the graphite block 63. A receiving groove 67 is opened on the surface of the slider 64. When the end of the retaining frame 65 is retracted into the receiving groove 67, the graphite block 63 can be inserted into the inside of the connecting cylinder 61.

[0034] Working principle: During the use of the ball valve, when the ball valve is installed at a high height, the rotating bar 510 located below the rotating block 508 can be rotated out. At this time, the rotating block 508 will be driven by its own gravity to unfold the first sliding rod 505, the second sliding rod 506, and the third sliding rod 507, making it easy for the operator to reach the rotating block 508. While rotating the rotating block 508, the rotating rod 502 will rotate inside the fixed block 504, and the gear 503 will drive the gear ring 501 to twist, thereby realizing the twisting operation of the valve stem 2 and the handle 3, thus facilitating the opening and closing control of the ball valve. When the drive structure 5 is not needed, the first sliding rod 505, the second sliding rod 506, and the third sliding rod 507 can be retracted. After the second slide bar 506 and the third slide bar 507 are retracted, the rotating bar 510 can be rotated, and the rubber block 511 on the rotating bar 510 can be placed under the rotating block 508. This allows for the covering of the first slide bar 505, the second slide bar 506, and the third slide bar 507 after they are retracted. The rubber block 511 improves the tightness of the temporary covering of the first slide bar 505, the second slide bar 506, and the third slide bar 507 after they are retracted. By setting the drive structure 5 and the retractable first slide bar 505, the second slide bar 506, and the third slide bar 507, it is convenient to flexibly twist the handle 3 on the ball valve installed at a high position, thereby facilitating the flexible opening and closing of the ball valve installed at a high position and improving the opening and closing efficiency of the ball valve.

[0035] Pull the retaining frame 65 inside the slider 64 to retract the end of the retaining frame 65 into the inner side of the storage groove 67. At this time, the graphite block 63 can be inserted into the inner side of the connecting cylinder 61. Slide the slider 64 away from the valve tube 1 to slide the retaining frame 65 out from the inner side of the storage groove 67. Release the slider 64. At this time, the slider 64 will be driven by the elastic force of the spring 66 to push the retaining frame 65 against the surface of the graphite block 63. The graphite block 63 will be tightly fitted by the pressure of the retaining frame 65 at the position where the handle 3 and the valve tube 1 are close to each other. When there is relative movement between the valve tube 1 and the handle 3, the graphite block 63 can realize the lubrication work between the valve tube 1 and the handle 3. By setting the auxiliary structure 6, the flexible lubrication work between the valve tube 1 and the handle 3 is facilitated, and the opening and closing efficiency of the ball valve is further improved.

[0036] 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 mechanical connection or an electrical 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.

Claims

1. A quick-opening ball valve comprising a valve body (1), characterized in that: The valve pipe (1) is internally rotatably installed with a valve rod (2), the lower end of the valve rod (2) is installed with a ball (4), the ball (4) is located inside the valve pipe (1), the upper end of the valve rod (2) is fixedly connected with a handle (3), the side wall of the valve pipe (1) is provided with a drive rotating structure (5), the drive rotating structure (5) comprises a fixed block (504) fixedly connected to the side wall of the valve pipe (1), the inside of the fixed block (504) is rotatably connected with a rotating rod (502), the upper end of the rotating rod (502) is fixedly connected with a gear (503), the side wall of the handle (3) is fixedly connected with a tooth ring (501), the tooth surface of the tooth ring (501) is engaged with the tooth surface of the gear (503).

2. A quick open and shut ball valve according to claim 1, characterized in that: The inside of the rotating rod (502) is slidably connected with a first sliding rod (505), the inside of the first sliding rod (505) is slidably connected with a second sliding rod (506), the inside of the second sliding rod (506) is slidably connected with a third sliding rod (507).

3. A quick open and shut ball valve according to claim 2, characterized in that: The lower end of the third sliding rod (507) is fixedly connected with a rotating block (508).

4. The quick open and close ball valve according to claim 1, characterized in that: The side wall of the rotating rod (502) is fixedly connected with a mounting block (509), the lower surface of the mounting block (509) is rotatably installed with a rotating strip (510), the upper surface of the rotating strip (510) is glued with a rubber block (511).

5. A quick open and shut ball valve according to claim 1, characterized in that: The side wall of the valve pipe (1) is provided with an auxiliary structure (6), the auxiliary structure (6) comprises a support rod (62) fixedly connected to the side wall of the valve pipe (1), the upper end of the support rod (62) is fixedly connected with a connecting barrel (61), the inside of the connecting barrel (61) is placed with a graphite block (63).

6. A quick open and shut ball valve according to claim 5, characterized in that: The inside of the connecting barrel (61) is slidably connected with a sliding block (64), the inside of the sliding block (64) is slidably connected with a blocking frame (65), the sliding block (64) and the connecting barrel (61) are fixedly connected with a spring (66).

7. A quick open and shut ball valve according to claim 6, characterized in that: The surface of the sliding block (64) is provided with a receiving groove (67).

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