Ball valve with ball core convenient to replace

Abstract

The utility model discloses a ball valve with a ball core convenient to replace. The ball valve comprises a first valve body, a second valve body is installed on one side of the first valve body, a connecting mechanism is arranged on the outer side of the first valve body, a valve seat is installed in the first valve body, a ball core body is installed on one side of the valve seat, and a groove is formed in the upper portion of the ball core body. According to the ball valve with the ball core convenient to replace, through cooperative use of a connecting mechanism, a groove, a valve rod and a protruding block, when the ball core body needs to be replaced in daily maintenance, a user rotates to take down an adjusting sleeve, a rotating rod is separated from a butt joint block, and then a first valve body and a second valve body can be detached; and then the valve rod is rotated to enable the groove to be aligned to one side of the opening of the first valve body, so that the ball core main body can be quickly taken out from the interior of the first valve body to be replaced, high convenience is achieved, and the ball core main body can be quickly and simply replaced when needed without other operation tools.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve convenient for replacing the ball core. Background Technique

[0002] A ball valve is a valve widely used in pipeline systems. Its opening and closing member is driven by a valve stem and rotates around the axis of the ball valve. It is the valve with the least fluid resistance among all valves. Even for a reduced-diameter ball valve, its fluid resistance is quite small. Due to its advantages, the ball valve is widely used in industries such as food, chemical, petroleum, electric power, municipal administration, and steel. In fields such as petroleum refining, long-distance pipelines, chemical industry, paper making, and pharmaceuticals, the ball valve, as an important cut-off, distribution, and regulation device, plays an indispensable role.

[0003] However, when the existing ball valve needs to be maintained, it is not convenient to quickly open the valve body to replace the internal ball core. Other tools are needed to complete the replacement work of the ball core, and its practicability is not good. Therefore, this application provides a ball valve convenient for replacing the ball core to meet the requirements. Summary of the Invention

[0004] The purpose of the utility model is to provide a ball valve convenient for replacing the ball core to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A ball valve convenient for replacing the ball core, including a first valve body, a second valve body is installed on one side of the first valve body, a connection mechanism is arranged on the outer side of the first valve body, a valve seat is installed inside the first valve body, a ball core main body is installed on one side of the valve seat, a groove is opened above the ball core main body, a valve stem penetrates through the inside of the first valve body, a convex block is fixed below the valve stem, a handle is installed above the valve stem, and a sealing mechanism is arranged above the first valve body;

[0006] The connection mechanism includes a shaft seat, a rotating shaft, a rotating rod, an adjusting sleeve, and a docking block. The shaft seat is fixed on the outer side of the first valve body, a rotatable rotating shaft is installed inside the shaft seat, a rotating rod is fixed on one side of the rotating shaft, an adjusting sleeve is sleeved on the outer side of the rotating rod, and a docking block is fixed on the outer side of the second valve body.

[0007] Preferably, the rotating rod forms a rotating structure with the shaft seat through the rotating shaft, and the shaft seats are circumferentially distributed on the outer side of the first valve body.

[0008] Preferably, the docking block is aligned and penetrated with the rotating rod, and the outer side of the rotating rod is provided with a thread.

[0009] Preferably, the width of the convex block matches the width of the groove, and the convex block and the groove are used in cooperation.

[0010] Preferably, the sealing mechanism includes a sealing cover, a fixing bolt and a sealing ring. The sealing cover is installed above the first valve body. A fixing bolt penetrates through the upper part of the sealing cover, and a sealing ring is installed below the sealing cover.

[0011] Preferably, the inner side of the sealing ring fits with the outer side of the valve stem, and the sealing ring is made of polytetrafluoroethylene.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this ball valve that is convenient for replacing the ball core, through the combined use of the connecting mechanism, groove, valve stem and convex block, when the ball core body needs to be replaced during daily maintenance, the user rotates and removes the adjusting sleeve to separate the rotating rod from the docking block, then the first valve body and the second valve body can be disassembled. After that, rotate the valve stem so that the groove aligns with the opening side of the first valve body, and thus the ball core body can be quickly taken out from the inside of the first valve body for replacement, which has high convenience, enabling the ball core body to be quickly and simply replaced when needed without the help of other operating tools.

[0014] 2. For this ball valve that is convenient for replacing the ball core, through the setting of the sealing mechanism, sealing cover, fixing bolt and sealing ring, the sealing ring can prevent the medium from leaking out through the gap between the valve stem and the first valve body, and the sealing ring can maintain the sealing effect as the valve stem rotates, ensuring no leakage occurs during the entire working cycle of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the structure of the connecting mechanism of the present utility model;

[0017] Figure 3 is a schematic diagram of the structure of the sealing mechanism of the present utility model;

[0018] Figure 4 is a schematic diagram of the structure of the ball core body of the present utility model.

[0019] In the figure: 1. First valve body; 2. Second valve body; 3. Connecting mechanism; 301. Axle seat; 302. Rotating shaft; 303. Rotating rod; 304. Adjusting sleeve; 305. Docking block; 4. Valve seat; 5. Ball core body; 6. Groove; 7. Valve stem; 8. Convex block; 9. Handle; 10. Sealing mechanism; 1001. Sealing cover; 1002. Fixing bolt; 1003. Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a ball valve that is convenient for replacing the ball core, including a first valve body 1, a second valve body 2 is installed on one side of the first valve body 1, a connecting mechanism 3 is arranged on the outer side of the first valve body 1, a valve seat 4 is installed inside the first valve body 1, a ball core main body 5 is installed on one side of the valve seat 4, a groove 6 is opened above the ball core main body 5, a valve rod 7 penetrates through the inside of the first valve body 1, a convex block 8 is fixed below the valve rod 7, the width of the convex block 8 matches the width of the groove 6, the convex block 8 and the groove 6 are used in cooperation, by rotating the valve rod 7 to align the groove 6 with the opening side of the first valve body 1, the ball core main body 5 can be quickly taken out from the inside of the first valve body 1 for replacement, which has high convenience, so that the ball core main body 5 can be quickly and simply replaced when needed, and a handle 9 is installed above the valve rod 7;

[0022] Please refer to Figure 3 , a sealing mechanism 10 is arranged above the first valve body 1, the sealing mechanism 10 includes a sealing cover 1001, a fixing bolt 1002 and a sealing ring 1003, the sealing cover 1001 is installed above the first valve body 1, the fixing bolt 1002 penetrates through the sealing cover 1001, a sealing ring 1003 is installed below the sealing cover 1001, the sealing ring 1003 can prevent the medium from leaking out from the gap between the valve rod 7 and the first valve body 1, the inner side of the sealing ring 1003 is attached to the outer side of the valve rod 7, the sealing ring 1003 is made of polytetrafluoroethylene material, and the sealing ring 1003 can maintain the sealing effect as the valve rod 7 rotates, ensuring that no leakage will occur during the entire working cycle of the ball valve;

[0023] Please refer to Figure 2, the connecting mechanism 3 includes a shaft seat 301, a rotating shaft 302, a rotating rod 303, an adjusting sleeve 304 and a docking block 305. The shaft seat 301 is fixed on the outer side of the first valve body 1. A rotatable rotating shaft 302 is installed inside the shaft seat 301. A rotating rod 303 is fixed on one side of the rotating shaft 302. The rotating rod 303 and the shaft seat 301 form a rotating structure through the rotating shaft 302. The shaft seats 301 are circumferentially distributed on the outer side of the first valve body 1. Multiple rotating rods 303 are provided to limit the second valve body 2, so that the first valve body 1 and the second valve body 2 maintain sufficient stability when connected. An adjusting sleeve 304 is sleeved on the outer side of the rotating rod 303. A docking block 305 is fixed on the outer side of the second valve body 2. The docking block 305 is aligned and penetrated with the rotating rod 303. The outer side of the rotating rod 303 is provided with a thread. By aligning and penetrating the rotating rod 303 with the docking block 305, the first valve body 1 and the second valve body 2 can be docked, so as to quickly complete the disassembly and assembly of the first valve body 1 and the second valve body 2.

[0024] Working principle: When using the ball valve that is convenient for replacing the ball core, during daily maintenance, the user rotates and removes the adjusting sleeve 304 to separate the rotating rod 303 from the docking block 305, and disassembles the first valve body 1 and the second valve body 2. Then, the user rotates the valve stem 7 so that the groove 6 is aligned with the opening side of the first valve body 1, and takes out the ball core body 5 from the inside of the first valve body 1 for replacement. Similarly, after the replacement is completed, the ball core body 5 can be installed in the first valve body 1 and the first valve body 1 and the second valve body 2 can be fixed. Secondly, when in use, the sealing ring 1003 can maintain the sealing effect as the valve stem 7 rotates, ensuring that there will be no leakage during the entire working cycle of the ball valve. Just like this, the use process of the ball valve that is convenient for replacing the ball core is completed.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball valve facilitating the replacement of a ball core, comprising a first valve body (1), characterized in that: A second valve body (2) is installed on one side of the first valve body (1). A connection mechanism (3) is provided on the outer side of the first valve body (1). A valve seat (4) is installed inside the first valve body (1). A ball core body (5) is installed on one side of the valve seat (4). A groove (6) is formed above the ball core body (5). A valve rod (7) penetrates through the first valve body (1). A convex block (8) is fixed below the valve rod (7). A handle (9) is installed above the valve rod (7). A sealing mechanism (10) is provided above the first valve body (1). The connection mechanism (3) includes a shaft seat (301), a rotating shaft (302), a rotating rod (303), an adjusting sleeve (304), and a docking block (305). The shaft seat (301) is fixed on the outer side of the first valve body (1). A rotatable rotating shaft (302) is installed inside the shaft seat (301). A rotating rod (303) is fixed on one side of the rotating shaft (302). An adjusting sleeve (304) is sleeved on the outer side of the rotating rod (303). A docking block (305) is fixed on the outer side of the second valve body (2).

2. The ball valve facilitating the replacement of a ball core according to claim 1, characterized in that, The rotating rod (303) and the shaft seat (301) form a rotating structure through the rotating shaft (302). The shaft seats (301) are circumferentially distributed on the outer side of the first valve body (1).

3. The ball valve facilitating the replacement of a ball core according to claim 1, characterized in that, The docking block (305) is aligned and penetrated with the rotating rod (303). The outer side of the rotating rod (303) is provided with a thread.

4. A ball valve facilitating the replacement of a ball core according to claim 1, characterized in that, The width of the convex block (8) matches the width of the groove (6). The convex block (8) and the groove (6) are used in cooperation.

5. A ball valve facilitating the replacement of a ball core according to claim 1, characterized in that, The sealing mechanism (10) includes a sealing cover (1001), a fixing bolt (1002), and a sealing ring (1003). The sealing cover (1001) is installed above the first valve body (1). A fixing bolt (1002) penetrates through the sealing cover (1001). A sealing ring (1003) is installed below the sealing cover (1001).

6. A ball valve facilitating the replacement of a ball core according to claim 5, characterized in that, The inner side of the sealing ring (1003) is attached to the outer side of the valve rod (7). The sealing ring (1003) is made of polytetrafluoroethylene material.

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