Ball valve fastening device

Abstract

The utility model discloses a ball valve fastening device, which is applied to the field of valve body assembling and processing, solves the technical problem of unstable fastening and sealing performance at the joint of the end part of a ball valve, and adopts the technical scheme that the ball valve fastening device comprises a ball valve body, and is characterized in that a locking flange block is arranged at the end part of the ball valve body; a plurality of locking threaded holes are formed in the locking flange block, locking bolts are arranged in the locking threaded holes in a penetrating mode, and a fastening sleeve matched with the locking flange block is further arranged at the end of the ball valve body. The fastening sleeve is arranged on the locking flange block in a sleeving mode, the fastening ring block is movably connected to the end, away from the locking flange block, of the fastening sleeve, a locking thread section is arranged on the inner wall of the fastening sleeve, and the side portion of the locking flange block is matched with an external thread ring block of the locking thread section. And the fastening ring block is movably connected with the interior of the fastening sleeve. The technical effect of improving the fastening and sealing performance of the connecting position of the end of the ball valve is achieved.

Description

Technical Field

[0001] The utility model relates to the field of valve body assembly and processing, in particular to a ball valve fastening device. Background Art

[0002] During the installation of the existing ball valve, when it is limited and tightened by a fastening device, it is generally fixed by the cooperation of bolts and nuts. Ball valves are usually installed outdoors. Rainwater from the outside is highly corrosive to bolts and nuts. After long-term use, the connection between the bolts and nuts will be loose or rusted, resulting in problems with the fastening effect or inability to disassemble. At the same time, when the bolts and nuts are tightened, the contact point between the fastening sleeve and the outer wall of the ball valve body cannot be perfectly matched, and there is a problem of poor sealing. Rainwater can easily penetrate into the fastening sleeve, and water at the connection can easily seep out. Utility Model Content

[0003] The utility model aims to provide a ball valve fastening device, which has the advantage of being beneficial to improving the fastening and sealing performance of the ball valve body connection end.

[0004] The above-mentioned technical objective of the utility model is achieved through the following technical scheme: a ball valve fastening device comprises a ball valve body, characterized in that: a locking flange block is provided at the end of the ball valve body, the locking flange block is provided with a plurality of locking threaded holes, a locking bolt is passed through the locking threaded holes, and a fastening kit is also provided at the end of the ball valve body that cooperates with the locking flange block, the fastening kit comprises a fastening sleeve that is sleeved with the locking flange block and a fastening ring block movably connected to an end of the fastening sleeve away from the locking flange block, the inner wall of the fastening sleeve is provided with a locking threaded section, the side portion of the locking flange block is provided with an external threaded ring block that cooperates with the locking threaded section, the fastening ring block is movably connected to the inside of the fastening sleeve, the fastening sleeve is provided with a plurality of auxiliary fastening holes that cooperate with the locking bolts, and the ends of the locking bolts that pass through the auxiliary fastening holes are threadedly connected with locking nuts.

[0005] Preferably, a split flexible sealing ring block is embedded in one end of the fastening sleeve away from the fastening ring block.

[0006] Preferably, a locking groove is provided inside the fastening sleeve, and the side wall of the fastening ring block is slidably plugged into the locking groove.

[0007] Preferably, the opening of the auxiliary fastening hole on the fastening ring block is also provided with a locking step groove.

[0008] Preferably, a tightening ring block is fixed to one side of the fastening ring block close to the locking flange block, and a wear-resistant washer is provided at the end of the tightening ring block.

[0009] Preferably, the fastening ring block is embedded in the interior of the fastening sleeve, and a leakage hole is provided on the side wall of the tube mouth of the fastening sleeve.

[0010] Preferably, a force-applying rotating ring block is provided on the outer side of the tightening sleeve.

[0011] In summary, the utility model has the following beneficial effects:

[0012] Through the combined setting of the fastening kit at the end of the ball valve body, the sealing protection of the connection at the end of the ball valve can be effectively achieved, and the fastening sleeve and the fastening ring block are movably connected. While the tension-maintaining fastening sleeve and the locking flange block are spirally locked, the fastening ring block and the locking bolt achieve a secondary auxiliary fastening effect, which fully guarantees the airtight reliability of the fastening kit;

[0013] The setting of the fastening sleeve effectively realizes the overall cover protection including the ball valve connection and fasteners, reduces the direct influence of external rainwater on the normal operation of the ball valve, and continuously maintains the tight seal of the valve body connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional schematic diagram for showing the structure of the ball valve fastening device in the embodiment;

[0015] Figure 2 yes Figure 1 A magnified view of middle;

[0016] Figure 3 It is a schematic diagram for showing the structure of a split flexible sealing ring block in an embodiment;

[0017] Figure 4 It is a schematic diagram for showing the positions of the wear-resistant ring block and the tightening ring block in the embodiment.

[0018] Figure numerals: 1. ball valve body; 2. locking flange block; 3. locking threaded hole; 4. locking bolt; 5. fastening sleeve; 6. fastening ring block; 7. locking threaded section; 8. external thread ring block; 9. auxiliary fastening hole; 10. locking nut; 11. split flexible sealing ring block; 12. locking slide groove; 13. locking step groove; 14. tightening ring block; 15. wear-resistant gasket; 16. leakage hole; 17. force-applying rotating ring block. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] Embodiment: A ball valve fastening device, such as Figure 1 and Figure 2As shown, it includes a ball valve body 1, and a locking flange block 2 is provided at the end of the ball valve body 1. When the assembler connects and assembles the ball valve body, the flange block at the end of the pipeline is aligned and calibrated with the locking flange block 2 at the end of the ball valve body 1. A plurality of locking threaded holes 3 are provided on the locking flange block 2, and locking bolts 4 are passed through the locking threaded holes 3. By tightening the locking bolts 4, the limit locking and fixation of the two ends of the ball valve can be achieved.

[0021] In order to further improve the locking, sealing and tightening degree of the ball valve assembly, a tightening kit cooperating with the locking flange block 2 is also provided at the end of the ball valve body 1. The tightening kit includes a tightening sleeve 5 mounted on the locking flange block 2 and a tightening ring block 6 movably connected to the end of the tightening sleeve 5 away from the locking flange block 2. During the assembly process, the installer must first sleeve the tightening kit on the pipeline to be assembled and tightened, and then lock and fix the pipeline and the ball valve body to achieve tightening protection between the locking flange block 2 at the end of the ball valve body 1 and the flange block at the end of the pipeline.

[0022] The inner wall of the fastening sleeve 5 is provided with a locking thread section 7, the side of the locking flange block 2 is provided with an external threaded ring block 8 that cooperates with the locking thread section 7, and the outer side of the fastening sleeve 5 is provided with a force-applying rotating ring block 17. The processing personnel can realize the spiral locking between the fastening sleeve 5 and the locking flange block 2 by rotating the force-applying rotating ring block 17, realize the sealing protection of the end of the ball valve body 1, and reduce the direct exposure of the valve body connection during use. In addition, the end of the fastening sleeve 5 can realize the cover protection of the locking bolt 4 nut on one side of the locking flange block 2, and the end of the fastening sleeve 5 away from the fastening ring block 6 is also embedded with a split flexible sealing ring block 11 (such as Figure 3 As shown), after tightening the fastening sleeve 5, the processing personnel can clamp the split-type flexible sealing ring block 11 into the end of the fastening sleeve 5 to achieve sealing protection for the locking flange block 2 and the locking bolt 4.

[0023] The fastening ring block 6 is movably connected to the inside of the fastening sleeve 5, and the fastening sleeve 5 is provided with a plurality of auxiliary fastening holes 9 that cooperate with the locking bolts 4. During the process of locking the locking bolts 4 and rotating the fastening sleeve 5, the processing personnel can maintain the interlaced cooperation between the plurality of locking bolts 4 and the auxiliary fastening holes 9 through the flexible rotation adjustment of the fastening ring block 6, and maintain the spiral tightening of the fastening sleeve 5.

[0024] A locking groove 12 is provided inside the fastening sleeve 5, and the side wall of the fastening ring block 6 is slidably plugged into the locking groove 12. During normal assembly, the fastening ring block 6 can flexibly move in the fastening sleeve 5 along its length direction. A locking nut 10 is threadedly connected to the end of the locking bolt 4 passing through the auxiliary fastening hole 9, which is used to further tighten and lock the fastening ring block. A tightening ring block 14 is also provided on the side of the fastening ring block 6 close to the locking flange block 2, and a wear-resistant washer 15 (such as Figure 4As shown in the figure, as the locking nut 10 is continuously tightened, the fastening ring block 6 is driven to screw into the fastening sleeve 5, maintaining the compression between the fastening ring block 14 and the flange block on the assembly pipeline, ensuring the reliable locking state of the kit and the ball valve body 1. The opening of the auxiliary fastening hole 9 on the fastening ring block 6 is also provided with a locking step groove 13, which can further improve the contact compactness between the locking nut 10 and the fastening ring block 6.

[0025] Taking into account the actual use process, especially when the ball valve body is working in an outdoor environment, it is necessary to further reduce the impact of rainwater and the like on the connecting end of the valve body, the fastening ring block 6 in the fastening kit is kept embedded in the fastening sleeve 5, and the fastening sleeve 5 can be used to cover and protect the locking bolt 4 and the locking nut 10, and a leakage hole 16 is provided on the side wall of the tube mouth of the fastening sleeve 5, which can timely guide the rainwater and other impurities at the end of the fastening sleeve 5, reduce its continuous penetration into the fastening sleeve 5 to affect the normal working environment of the fastening kit and the ball valve body, and finally form an all-round fastening and sealing effect on the connecting part of the ball valve body.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A ball valve fastening device, comprising a ball valve body (1), characterized in that: The end of the ball valve body (1) is provided with a locking flange block (2), the locking flange block (2) is provided with a plurality of locking threaded holes (3), locking bolts (4) are inserted into the locking threaded holes (3), and the end of the ball valve body (1) is also provided with a fastening kit that matches the locking flange block (2), the fastening kit comprising a fastening sleeve (5) sleeved with the locking flange block (2) and a fastening sleeve movably connected to the end of the fastening sleeve (5) away from the locking flange block (2). A ring block (6), the inner wall of the fastening sleeve (5) is provided with a locking thread section (7), the side of the locking flange block (2) is provided with an external threaded ring block (8) that cooperates with the locking thread section (7), the fastening ring block (6) is movably connected to the inside of the fastening sleeve (5), the fastening sleeve (5) is provided with a plurality of auxiliary fastening holes (9) that cooperate with the locking bolts (4), and the ends of the locking bolts (4) that pass through the auxiliary fastening holes (9) are threadedly connected with locking nuts (10).

2. A ball valve fastening device according to claim 1, characterized in that: A split flexible sealing ring block (11) is also embedded in one end of the fastening sleeve (5) away from the fastening ring block (6).

3. A ball valve fastening device according to claim 1, characterized in that: A locking groove (12) is provided inside the fastening sleeve (5), and the side wall of the fastening ring block (6) is slidably plugged into the locking groove (12).

4. A ball valve fastening device according to claim 3, characterized in that: The opening of the auxiliary fastening hole (9) on the fastening ring block (6) is also provided with a locking step groove (13).

5. A ball valve fastening device according to claim 4, characterized in that: A tightening ring block (14) is also fixed to one side of the tightening ring block (6) close to the locking flange block (2), and a wear-resistant washer (15) is provided at the end of the tightening ring block (14).

6. A ball valve fastening device according to claim 1, characterized in that: The fastening ring block (6) is embedded in the interior of the fastening sleeve (5), and a leakage hole (16) is provided on the side wall of the sleeve opening of the fastening sleeve (5).

7. A ball valve fastening device according to claim 1, characterized in that: A force-applying rotating ring block (17) is provided on the outer side of the tightening sleeve (5).

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