High-frequency opening and closing hard sealing fixed ball valve

Abstract

The utility model discloses a high-frequency opening and closing hard sealing fixed ball valve which comprises a valve body, two water passing openings are formed in the valve body, an upper bearing and a lower bearing are rotationally connected to the inner wall of the valve body, a valve ball is jointly and fixedly connected between the upper bearing and the lower bearing, a valve seat is fixedly connected to the end, away from the valve ball, of the upper bearing, and the valve seat is fixedly connected to the end, away from the valve ball, of the lower bearing. A valve rod is fixedly connected to the end, away from the valve ball, of the valve seat, two first flanges are fixedly connected to the valve body, clamping grooves are formed in the side walls of two water passing openings of the valve body, and clamping blocks are slidably connected into the two clamping grooves. In the process of rotating the valve ball, the cleaning plate can scrape impurities attached to the outer wall of the valve ball, the impurities are prevented from entering a gap between the valve seat and the valve body, the sealing performance of the valve seat and the valve body is prevented from being affected by the impurities, a user can conveniently fix the first flange and the second flange through the arranged positioning assembly, and the portability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hard-sealed ball valves, in particular to a high-frequency opening and closing hard-sealed fixed ball valve. Background Art

[0002] A ball valve is a type of valve. The opening and closing part (ball) of the ball valve 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. With the rapid development of science and technology, the continuous improvement of production technology and product structure, it has rapidly developed into a major valve type. In my country, ball valves are widely used in oil refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration, steel and other industries, and occupy a pivotal position in the national economy. It has a 90-degree rotating action, the plug body is a sphere, and there is a circular through hole or channel passing through its axis.

[0003] During the switching process of the existing hard-sealed ball valve, the fluid transmitted by the ball valve can easily penetrate into the space between the valve body and the valve ball, and small particles mixed in the fluid can also enter the space between the valve body and the valve ball along with the fluid. These small particles can easily scratch the surface of the valve body and the valve ball, affecting the sealing performance of the hard-sealed ball valve. In addition, when connecting the connecting pipe to the valve body, the user is required to adjust the alignment of the flange connection port, and the connection process is relatively time-consuming and labor-intensive.

[0004] Therefore, we propose a high-frequency opening and closing hard-sealed fixed ball valve to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a high-frequency opening and closing hard-sealing fixed ball valve.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-frequency opening and closing hard-sealed fixed ball valve comprises a valve body, wherein the valve body is provided with two water passages, an upper bearing and a lower bearing are rotatably connected to the inner wall of the valve body, a valve ball is fixedly connected between the upper bearing and the lower bearing, an end of the upper bearing away from the valve ball is fixedly connected to a valve seat, an end of the valve seat away from the valve ball is fixedly connected to a valve stem, two first flanges are fixedly connected to the valve body, grooves are provided on the side walls of the two water passages of the valve body, blocks are slidably connected in the two grooves, two ends of the blocks away from the valve body are fixedly connected to connecting pipes, and two side walls of the connecting pipes are fixedly connected to second flanges, the two first flanges and the two second flanges are arranged in a one-to-one correspondence, and a plurality of positioning components are arranged on each pair of the correspondingly arranged first flanges and second flanges, and a cleaning component is arranged on the valve body.

[0008] Preferably, the cleaning assembly includes a cleaning groove arranged on the inner wall of the valve body, a cleaning plate is slidably connected in the cleaning groove, the cleaning plate is arranged opposite to the valve ball, two sliding chambers are arranged on the valve body, telescopic springs are fixedly connected to the end surfaces of the two sliding chambers away from the valve ball, sliding plates are fixedly connected to the end surfaces of the two telescopic springs close to the valve ball, connecting rods are fixedly connected to the two sliding plates, the two connecting rods slide through the valve body and are fixedly connected to the cleaning plate, and a water blocking plate is fixedly connected to the inner wall of the cleaning plate.

[0009] Preferably, the positioning assembly includes a positioning block fixedly connected to the second flange near an end face of the valve body, the positioning block is provided with a positioning groove, the first flange is provided with a sliding port, the first flange is provided with a positioning cavity, a positioning spring is fixedly connected to the inner wall of the positioning cavity on a side away from the sliding port, the positioning spring is fixedly connected to a sliding block, the sliding block slides through the first flange and is slidably connected in the sliding port, the positioning block and the sliding port are matched, a pull rod slides through the first flange, and one end of the pull rod is fixedly connected to the sliding block.

[0010] Preferably, the sliding block is arranged in a wedge shape.

[0011] Preferably, a sealing gasket layer is provided on the two card slots and the two card blocks.

[0012] Preferably, the plurality of pull rods are all provided with anti-slip patterns.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. When the user opens the ball valve, the liquid in the valve body begins to flow gradually. The liquid pushes the water blocking plate, so that the cleaning plate fits the outer wall of the valve ball. During the rotation of the valve ball, the cleaning plate scrapes off the impurities attached to the outer wall of the valve ball to prevent impurities from entering the gap between the valve seat and the valve body, preventing impurities from scratching the surface of the valve body and the valve ball, and preventing impurities from affecting the sealing of the valve seat and the valve body.

[0015] 2. When the user connects the connecting pipe to the valve body, the user inserts the positioning block into the sliding port so that the connecting ports on the first flange and the second flange are aligned, which is convenient for the user to fix the first flange and the second flange, thereby improving the portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the front structure of the high-frequency opening and closing hard-sealed fixed ball valve proposed by the utility model;

[0017] Figure 2 A three-dimensional cross-sectional view of the positioning cavity structure of the high-frequency opening and closing hard-sealed fixed ball valve proposed by the utility model;

[0018] Figure 3 This is a three-dimensional sectional view of the high-frequency opening and closing hard-sealed fixed ball valve structure proposed by the utility model.

[0019] In the figure: 1 valve body, 2 valve ball, 3 valve seat, 4 valve stem, 5 first flange, 6 clamping groove, 7 clamping block, 8 cleaning groove, 9 cleaning plate, 10 sliding cavity, 11 telescopic spring, 12 positioning cavity, 13 positioning spring, 14 sliding block, 15 pull rod, 16 water blocking plate, 17 positioning block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-Figure 3 , a high-frequency opening and closing hard-sealed fixed ball valve, comprising a valve body 1, with two water passages provided on the valve body 1, an upper bearing and a lower bearing being rotatably connected on the inner wall of the valve body 1, a valve ball 2 being fixedly connected between the upper bearing and the lower bearing, an end of the upper bearing away from the valve ball 2 being fixedly connected to a valve seat 3, an end of the valve seat 3 away from the valve ball 2 being fixedly connected to a valve stem 4, two first flanges 5 being fixedly connected to the valve body 1, a card slot 6 being provided on the side walls of the two water passages of the valve body 1, a card block 7 being slidably connected in the two card slots 6, a sealing gasket layer being provided on the two card slots 6 and the two card blocks 7, which improves the sealing performance of the connection between the valve body 1 and the connecting pipe and avoids liquid leakage at the connection, the ends of the two card blocks 7 away from the valve body 1 being fixedly connected to the connecting pipe, the side walls of the two connecting pipes being fixedly connected to the second flange, the two first flanges 5 and the two second flanges being arranged in one-to-one correspondence, a plurality of positioning components being provided on each pair of the first flanges 5 and the second flanges being arranged in a corresponding manner, and a cleaning component being provided on the valve body 1;

[0022] The cleaning assembly includes a cleaning groove 8 arranged on the inner wall of the valve body 1, a cleaning plate 9 is slidably connected in the cleaning groove 8, the cleaning plate 9 is arranged opposite to the valve ball 2, two sliding chambers 10 are arranged on the valve body 1, and telescopic springs 11 are fixedly connected to the end faces of the two sliding chambers 10 away from the valve ball 2, and sliding plates are fixedly connected to the end faces of the two telescopic springs 11 close to the valve ball 2, and connecting rods are fixedly connected to the two sliding plates, and the two connecting rods slide through the valve body 1 and are fixedly connected to the cleaning plate 9, and a water blocking plate 16 is fixedly connected to the inner wall of the cleaning plate 9, and the positioning assembly includes a positioning block 17 fixedly connected to the second flange close to the end face of the valve body 1, and a positioning groove is arranged on the positioning block 17, and a sliding port is arranged on the first flange 5;

[0023] A positioning cavity 12 is provided on the first flange 5, and a positioning spring 13 is fixedly connected to the inner wall of the positioning cavity 12 on the side away from the sliding opening. A sliding block 14 is fixedly connected to the positioning spring 13. The sliding block 14 slides through the first flange 5 and is slidably connected in the sliding opening. The sliding block 14 is wedge-shaped, so that after the positioning block 17 enters the sliding opening, the sliding block 14 is automatically retracted under the squeezing of the positioning block 17, thereby improving the portability of the device. The positioning block 17 and the sliding opening are matched. A pull rod 15 slides through the first flange 5, and one end of the pull rod 15 is fixedly connected to the sliding block 14. Anti-slip patterns are provided on the plurality of pull rods 15. When disassembling the connecting pipe, it is convenient for the user to pull the pull rod 15 to move the sliding block 14 out of the positioning groove, thereby improving the portability of the device.

[0024] During the use of the utility model, when the user connects the connecting pipe to the valve body 1, the user first inserts the positioning block 17 on the second flange into the sliding port. During the insertion of the positioning block 17, the positioning block 17 will squeeze the sliding block 14, and the positioning spring 13 will temporarily shrink, so that the sliding block 14 will shrink into the positioning cavity 12. When the positioning groove on the positioning block 17 moves to just below the sliding block 14, the positioning spring 13 will reset at this time, so that the sliding block 14 will slide into the positioning groove. The sliding block 14 limits the positioning block 17, so that the connecting ports on the first flange 5 and the second flange are aligned, which is convenient for the user to fix the first flange 5 and the second flange, and provides The portability of the device is improved. After the user connects the connecting pipe and the valve body 1, the user introduces liquid. When the user needs to open the valve body 1, the user rotates the valve stem 4, and the valve stem 4 drives the valve ball 2 to rotate. At this time, the liquid in the valve body 1 begins to flow gradually, and the liquid pushes the water blocking plate 16 to extend the telescopic spring 11. At this time, the cleaning plate 9 is attached to the outer wall of the valve ball 2. During the rotation of the valve ball 2, the cleaning plate 9 scrapes off impurities attached to the outer wall of the valve ball 2 to prevent impurities from entering the gap between the valve seat 3 and the valve body 1. At the same time, it can also prevent impurities from scratching the surface of the valve body 1 and the valve ball 2, and prevent impurities from affecting the sealing of the valve seat 3 and the valve body 1.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high frequency opening and closing hard seal fixed ball valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with two water passages, an upper bearing and a lower bearing are rotatably connected on the inner wall of the valve body (1), a valve ball (2) is fixedly connected between the upper bearing and the lower bearing, one end of the upper bearing away from the valve ball (2) is fixedly connected to a valve seat (3), and one end of the valve seat (3) away from the valve ball (2) is fixedly connected to a valve stem (4), two first flanges (5) are fixedly connected to the valve body (1), a clamping groove (6) is provided on the side walls of the two water passages of the valve body (1), a clamping block (7) is slidably connected in the two clamping grooves (6), one end of the two clamping blocks (7) away from the valve body (1) is fixedly connected to a connecting pipe, and the side walls of the two connecting pipes are fixedly connected to a second flange, the two first flanges (5) and the two second flanges are arranged in a one-to-one correspondence, and each pair of the first flanges (5) and the second flanges arranged in a corresponding manner is provided with a plurality of positioning components, and a cleaning component is provided on the valve body (1).

2. The high-frequency opening and closing hard-sealed fixed ball valve according to claim 1 is characterized in that: The cleaning assembly comprises a cleaning groove (8) arranged on the inner wall of the valve body (1), a cleaning plate (9) is slidably connected in the cleaning groove (8), and the cleaning plate (9) is arranged opposite to the valve ball (2). The valve body (1) is provided with two sliding chambers (10), and telescopic springs (11) are fixedly connected to the end surfaces of the two sliding chambers (10) away from the valve ball (2), and sliding plates are fixedly connected to the end surfaces of the two telescopic springs (11) close to the valve ball (2). Connecting rods are fixedly connected to the two sliding plates, and the two connecting rods slide through the valve body (1) and are fixedly connected to the cleaning plate (9). A water blocking plate (16) is fixedly connected to the inner wall of the cleaning plate (9).

3. The high-frequency opening and closing hard-sealed fixed ball valve according to claim 1 is characterized in that: The positioning assembly comprises a positioning block (17) fixedly connected to an end face of the second flange close to the valve body (1), the positioning block (17) being provided with a positioning groove, the first flange (5) being provided with a sliding opening, the first flange (5) being provided with a positioning cavity (12), a positioning spring (13) being fixedly connected to an inner wall of the positioning cavity (12) away from the sliding opening, the positioning spring (13) being fixedly connected to a sliding block (14), the sliding block (14) slidingly passing through the first flange (5) and being slidably connected in the sliding opening, the positioning block (17) and the sliding opening being matched, a pull rod (15) slidingly passing through the first flange (5), one end of the pull rod (15) being fixedly connected to the sliding block (14).

4. The high-frequency opening and closing hard-sealed fixed ball valve according to claim 3 is characterized in that: The sliding block (14) is arranged in a wedge shape.

5. The high-frequency opening and closing hard-sealed fixed ball valve according to claim 1 is characterized in that: The two card slots (6) and the two card blocks (7) are both provided with sealing gasket layers.

6. The high-frequency opening and closing hard-sealed fixed ball valve according to claim 3 is characterized in that: The plurality of pull rods (15) are all provided with anti-slip patterns.

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