Integrated combination stop valve

Abstract

The utility model relates to the technical field of stop valve discloses a combined stop valve of integrated form, including valve body, one end of valve body is fixedly connected with flange no.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to an integrated combined gate valve. Background Technology

[0002] Integrated combination gate valves are one of the most widely used types of valves. The closing principle of integrated combination gate valves is to rely on the pressure of the valve stem to make the valve disc sealing surface and the valve seat sealing surface fit tightly together, thus preventing the flow of media.

[0003] A search revealed Chinese Patent Publication No. CN219933087U, which discloses an integrated combination gate valve, relating to the field of gate valve technology. It includes a valve body and a water pipe. A threaded rod is threadedly connected to the inner wall of the top of the valve body, and a fixing frame is fixedly connected to the top of the valve body. A rotating handle is fixedly connected to the top of the threaded rod. A pipe is fixedly connected to the outer wall of the valve body, with L-shaped grooves at both the upper and lower ends. A limiting groove is formed on the inner wall of the L-shaped groove, and a protective cover is slidably connected to the outer wall of the pipe. A limiting block engages with the limiting groove. In use, by providing the protective cover, limiting block, and limiting groove, pushing the protective cover on the gate valve towards the connection point and rotating the protective cover to the left causes the limiting block on the inner wall of the protective cover to engage with the limiting groove on the inner wall of the L-shaped groove, thus blocking the connection between the gate valve and the connecting pipe. This prevents corrosion and leakage caused by prolonged exposure to the elements.

[0004] The aforementioned device can shield the connection point by setting a protective cover, thereby preventing it from being exposed. However, since one end of the protective cover is open, the protective effect after shielding the connection point is relatively limited, and corrosion is still likely to occur. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an integrated combination shut-off valve, which aims to solve the problem that in the prior art, the protective cover is open at one end, and the protective effect is relatively limited after the connection position is blocked, and it is still prone to corrosion.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated combination shut-off valve, comprising a valve body, a flange one fixedly connected to one end of the valve body, a flange two provided on one side of the flange one, a pipe fixedly connected to the side of the flange two away from the flange one, a sealing ring provided on the outer wall of the pipe, a sealing plate provided on the outer side of the sealing ring, a sealing assembly provided on the outer wall of one end of the valve body, a protective cover provided on the outer side of the sealing assembly, one side of the sealing plate and one side of the protective cover being fitted together, and a plurality of guide assemblies evenly provided on one side of the flange one, the outer wall of the guide assembly passing through the flange two and the sealing plate in sequence.

[0007] The above technical solution achieves sealing between the valve body and the protective cover, and between the sealing plate and the pipeline through the design of the sealing components and sealing rings. By fitting the protective cover and the sealing plate together and cooperating with the guide components, the problem of limited protection and easy corrosion caused by the open design of the protective cover at one end in the existing technology, which blocks the connection position, is solved.

[0008] Preferably, a plurality of connecting studs are evenly arranged on the other side of flange one, one end of the outer wall of the connecting stud passes through flange two, and fastening nuts are provided on opposite sides of flange one and flange two, with the inner wall of the fastening nut threadedly connected to the outer wall of the connecting stud.

[0009] Preferably, the guide assembly includes an auxiliary screw, one end of which is threaded to one side of flange one, and the outer wall of the other end of the auxiliary screw passes through flange two and a sealing plate in sequence. A cap nut is provided on the other side of the sealing plate, and the other end of the auxiliary screw is threaded to one side of the cap nut.

[0010] Preferably, the outer wall of the second flange is provided with a plurality of guide holes evenly distributed. The outer wall of the auxiliary screw passes through the guide holes, and the inner wall of the guide hole and the outer wall of the auxiliary screw are pre-set with a gap. The outer wall of the auxiliary screw is slidably connected to a guide head. The outer walls of the guide head are in contact with the inner walls of the guide holes. The outer wall of the auxiliary screw is threadedly connected to a guide nut. One side of the guide nut is in contact with the side of the second flange away from the first flange. The side of the guide head away from the cap nut is tapered.

[0011] Preferably, the sealing plate has a groove on the side away from the protective cover, the inner wall of the groove and the outer wall of the sealing ring are interference fit, and a sliding groove is formed on the inner wall of one side of the protective cover. The inner wall of the sliding groove is provided with a rubber layer, and the inner wall of the sliding groove is in contact with the outer wall of the sealing plate.

[0012] Preferably, the sealing assembly includes an inflatable sealing ring disposed on the outer wall of one end of the valve body, and the outer side of the inflatable sealing ring and the inner side of the other side of the protective cover are interference-fitted.

[0013] Preferably, the sealing assembly includes a conical ring, the inner side of which is fixedly connected to the outer wall of one end of the valve body. The outer wall of the conical ring is provided with a rubber layer. A second groove is provided on the other side of the protective cover. The inner wall of the second groove is designed with an inclined surface and fits against the outer wall of the conical ring.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the sealing ring design achieves the seal between the sealing plate and the pipe, the sealing component design achieves the seal between the protective cover and the outer wall of one end of the valve body, and the fit between the protective cover and the sealing plate and the cooperation of the guide component achieve the protection of flange one and flange two. This solves the problem that in the prior art, the protective cover is open at one end, and the protection effect is limited after the connection position is blocked, and it is still easy to be corroded.

[0016] 2. In this utility model, the auxiliary screw and flange one are connected by a thread, the auxiliary screw passes through the guide hole, and the guide head and guide nut cooperate to realize the guiding function of the guide assembly when flange one and flange two are connected; the auxiliary screw and cap nut are connected by a thread, and the connecting stud cooperates to realize the connection and fixation between the sealing plate and the protective cover by the guide assembly.

[0017] 3. In this utility model, by designing the sealing component as an inflatable sealing ring, the inflatable sealing ring is inflated to increase its volume, so that the outer side of the inflatable sealing ring and the inner side of the protective cover fit together, thereby achieving a seal between the valve body and the protective cover.

[0018] 4. In this utility model, by designing the sealing component as a conical ring, and through the threaded connection of the auxiliary screw and the cap nut, the outer wall of the conical ring and the inner wall of the groove are fitted together by the cooperation of the connecting stud during the connection and fixing process of the protective cover and the sealing plate, thereby achieving a seal between the valve body and the protective cover. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an integrated combined shut-off valve proposed in this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the protective cover structure of an integrated combined shut-off valve proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the internal exploded structure of the protective cover of an integrated combined shut-off valve proposed in this utility model.

[0022] Figure 4 This is a three-dimensional structural diagram of the conical ring of an integrated combined shut-off valve proposed in this utility model.

[0023] Legend:

[0024] 1. Valve body; 2. Sealing assembly; 3. Protective cover; 4. Guide assembly; 5. Cap nut; 6. Sealing ring; 7. Pipeline; 8. Inflatable sealing ring; 9. Connecting stud; 10. Flange 1; 11. Flange 2; 12. Fastening nut; 13. Sealing plate; 14. Auxiliary screw; 15. Guide nut; 16. Guide head; 17. Groove 1; 18. Guide hole; 19. Slide groove; 20. Conical ring; 21. Groove 2. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0026] Reference Figure 1 and Figure 2 An embodiment of this utility model provides an integrated combination shut-off valve, comprising a valve body 1, a flange 10 fixedly connected to one end of the valve body 1, a flange 2 11 provided on one side of the flange 10, a pipe 7 fixedly connected to the side of the flange 2 11 away from the flange 10, a sealing ring 6 provided on the outer wall of the pipe 7, a sealing plate 13 provided on the outer side of the sealing ring 6, a sealing component 2 provided on the outer wall of one end of the valve body 1, a protective cover 3 provided on the outer side of the sealing component 2, one side of the sealing plate 13 and one side of the protective cover 3 being fitted together, and a plurality of guide components 4 being evenly provided on one side of the flange 10, the outer wall of the guide components 4 passing through the flange 2 11 and the sealing plate 13 in sequence.

[0027] In this embodiment, Figure 1 The front, back, left, and right are the orientations. Valve body 1 is an integrated combination shut-off valve; in use, flange 10 and flange 21 are connected, and the protective cover 3 is slid to the right so that the protective cover 3 covers flange 10 and flange 21. Then, the sealing plate 13 is moved to the left so that the left side of the sealing plate 13 and the right side of the protective cover 3 are in contact. The connection and fixation between the protective cover 3 and the sealing plate 13 are completed by the guide assembly 4. The sealing assembly 2 achieves the seal between the protective cover 3 and the outer wall of one end of the valve body 1. The sealing ring 6 achieves the seal between the pipe 7 and the sealing plate 13. The seal between the sealing plate 13 and the protective cover 3 is achieved by the contact between the two, thus achieving the seal at the connection between the valve body 1 and the pipe 7. This solves the problem in the prior art where one end of the protective cover 3 is open, and the protective effect is limited after covering the connection position, and corrosion is still likely to occur.

[0028] Reference Figure 2On the other side of flange 10, multiple connecting studs 9 are evenly arranged. The outer wall of one end of the connecting stud 9 passes through flange 2 11. Fastening nuts 12 are provided on the opposite sides of flange 10 and flange 2 11. The inner wall of the fastening nut 12 is threaded to the outer wall of the connecting stud 9.

[0029] Specifically, multiple connecting studs 9 pass through flange 10 and flange 21, allowing them to be connected together. Slide grooves 19 are screwed into both ends of the connecting studs 9, so that the fastening nuts 12 complete the connection and fixation between flange 10 and flange 21, thereby realizing the connection and fixation between pipe 7 and valve body 1.

[0030] Reference Figure 2 and Figure 3 The guide assembly 4 includes an auxiliary screw 14. One end of the auxiliary screw 14 is threaded to one side of the flange 10. The outer wall of the other end of the auxiliary screw 14 passes through the flange 11 and the sealing plate 13 in sequence. A cap nut 5 is provided on the other side of the sealing plate 13. The other end of the auxiliary screw 14 is threaded to one side of the cap nut 5.

[0031] Specifically, the cap nut 5 has a certain thread depth, allowing it to fully accommodate the right end of the auxiliary screw 14. A rubber layer is provided on the side of the cap nut 5 that contacts the sealing plate 13, ensuring a seal between the cap nut 5 and the sealing plate 13 and protecting the auxiliary screw 14. When connecting the valve body 1 and the pipe 7, one auxiliary screw 14 can be threaded onto the right side of the flange 10 first, and the pipe 7 can be lifted so that the flange 11 passes through one auxiliary screw 14, providing support for it. Then, other auxiliary screws 14 are used to complete the connection. The initial guiding support of the pipe 7 is achieved by connecting the flange 10 and flange 2 11 through the connecting stud 9 and the fastening nut 12; the sealing plate 13 is passed through the auxiliary screw 14, and the threaded connection between the auxiliary screw 14 and the cap nut 5 causes the cap nut 5 to press against the sealing plate 13. The interference of the right side of the connecting stud 9 on the left side of the sealing plate 13 and the interference of the left side of the connecting stud 9 on the inner wall of the left side of the protective cover 3 make the sealing plate 13 and the protective cover 3 fit tightly. Thus, while realizing the guiding function of the guiding component 4, it also realizes the fixation of the protective cover 3 and the sealing plate 13.

[0032] Reference Figure 2 and Figure 3The outer wall of flange 2 11 is evenly provided with multiple guide holes 18. The outer wall of auxiliary screw 14 passes through the guide holes 18, and the inner wall of guide hole 18 and outer wall of auxiliary screw 14 are pre-spaced. A guide head 16 is slidably connected to the outer wall of auxiliary screw 14. The outer walls of guide head 16 are in contact with the inner walls of guide hole 18. A guide nut 15 is threadedly connected to the outer wall of auxiliary screw 14. One side of guide nut 15 is in contact with the side of flange 2 11 away from flange 1 10. The side of guide head 16 away from cap nut 5 is tapered.

[0033] Specifically, when connecting flange 10 and flange 21, the auxiliary screw 14 is passed through the guide hole 18 on flange 21. The pre-set gap between the outer wall of the auxiliary screw 14 and the inner wall of the guide hole 18 allows the auxiliary screw 14 to pass through flange 21 more easily and provide support. However, this also causes the through holes on flange 10 and flange 21 to misalign, preventing the connecting stud 9 from passing through both flange 10 and flange 21 simultaneously. Therefore, the guide head 16 is then inserted into the auxiliary screw 14, allowing one side of the tapered design of the guide head 16 to slide into the guide hole 18. Then, the guide nut 15 is screwed onto the auxiliary screw 14. As the guide nut 15 is screwed in continuously, and due to the tapered design of one side of the guide head 16, its outer wall interferes with the inner wall of the guide hole 18. While sliding into the guide hole 18, the position of the second flange 11 is gradually corrected. When the guide head 16 is fully inserted into the guide hole 18, the left side of the cap nut 5 and the right side of the second flange 11 are in contact, and the through holes on the first flange 10 and the second flange 11 are aligned, so that the connecting stud 9 can pass through the first flange 10 and the second flange 11 at the same time, thereby realizing the guiding function of the guide assembly 4.

[0034] Reference Figure 3 and Figure 4 A groove 17 is provided on the side of the sealing plate 13 away from the protective cover 3. The inner wall of the groove 17 and the outer wall of the sealing ring 6 are interference fit. A groove 19 is provided on the inner wall of one side of the protective cover 3. A rubber layer is provided on the inner wall of the groove 19. The inner wall of the groove 19 and the outer wall of the sealing plate 13 are in contact.

[0035] Specifically, through the design of the groove 19, when the protective cover 3 and the sealing plate 13 are connected, the outer side and left side of the sealing plate 13 slide into the groove 19 on the inner wall of the right side of the protective cover 3, and in combination with the rubber layer set on the inner wall of the groove 19, the seal between the two is achieved; after the protective cover 3 and the sealing plate 13 are connected and fixed, the sealing ring 6 is slid into the groove 17 and a certain force is applied. Through the interference fit between the sealing ring 6 and the groove 17, the two are tightly fitted, which helps to improve the sealing effect between the pipe 7 and the protective cover 3; thereby improving the protection performance of the connection between the valve body 1 and the pipe 7.

[0036] Reference Figure 2The sealing assembly 2 includes an inflatable sealing ring 8, which is disposed on the outer wall of one end of the valve body 1. The outer side of the inflatable sealing ring 8 and the inner side of the other side of the protective cover 3 are interference-fitted.

[0037] Specifically, after the connection and fixation between the protective cover 3 and the sealing plate 13 are completed, the volume of the inflatable sealing ring 8 can be increased by inflating it, so that the inflatable sealing ring 8 and the protective cover 3 form an interference fit effect, thereby helping to improve the protection effect at the connection between the valve body 1 and the pipeline 7. Example

[0038] Reference Figure 4 The present invention also provides an embodiment in which the sealing component 2 includes a conical ring 20, the inner side of which is fixedly connected to the outer wall of one end of the valve body 1, the outer wall of which is provided with a rubber layer, and the other side of the protective cover 3 is provided with a groove 21, the inner wall of which is designed with an inclined surface, and the inner wall of which fits against the outer wall of the conical ring 20.

[0039] Specifically, during the connection and fixation between the protective cover 3 and the sealing plate 13, the protective cover 3 moves to the right through the threaded connection of the cap nut 5 and the auxiliary screw 14 until its left side and the right side of the connecting stud 9 are in contact and form interference. Then, as the right end of the auxiliary screw 14 is continuously screwed into the cap nut 5, the protective cover 3 moves to the right. Through the design of the inclined surface of the inner wall of the groove 21, the outer wall of the groove 21 is in contact with the inner wall of the conical ring 20. Through the design of the rubber layer on the outer wall of the conical ring 20, the sealing performance of the sealing assembly 2 is improved, thereby helping to improve the protection effect at the connection between the valve body 1 and the pipeline 7.

[0040] Working principle: In use, the auxiliary screw 14 is passed through the guide hole 18 to support the flange 2 11. The guide head 16 is passed through the outer wall of the auxiliary screw 14, and the right end of the auxiliary screw 14 is passed through the guide nut 15, so that the guide nut 15 continuously moves closer to the flange 2 11. Through the tapered design on the left side of the guide head 16, the guide head 16 continuously corrects the position of the flange 2 11 as it enters the guide hole 18. When the guide head 16 is fully inside the guide hole 18, the flange 2 11 is guided. The connecting stud 9 is passed through the flange 1 10 and the flange 2 11, and the connection between the two is completed by tightening the nut 12, thus realizing the guiding function of the guide assembly 4.

[0041] Next, slide the protective cover 3 to the right and the sealing plate 13 to the left, so that the sealing plate 13 is passed through by the auxiliary screw 14 and slides into the groove 19. The sealing plate 13 and the protective cover 3 are connected and fixed by the threaded connection of the auxiliary screw 14 and the cap nut 5. Press the sealing ring 6 into the groove 17 to complete the seal between the sealing plate 13 and the pipe 7. If the sealing component 2 is an inflatable sealing ring 8, inflate the inflatable sealing ring 8 so that the outer side of the inflatable sealing ring 8 and the inner side of the protective cover 3 fit tightly together, thereby realizing the sealing function of the sealing component 2. If the sealing component 2 is a conical ring 20, the sealing function of the sealing component 2 is realized by the fit between the outer wall of the conical ring 20 and the inner wall of the groove 21. This achieves the seal at the connection between the valve body 1 and the pipe 7, thus solving the problem that the protective cover 1 in the prior art is open at one end, and the protective effect is limited after the connection position is blocked, and it is still easy to be corroded.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated combination shut-off valve, comprising a valve body (1), characterized in that: One end of the valve body (1) is fixedly connected to a flange one (10). A flange two (11) is provided on one side of the flange one (10). A pipe (7) is fixedly connected to the side of the flange two (11) away from the flange one (10). A sealing ring (6) is provided on the outer wall of the pipe (7). A sealing plate (13) is provided on the outer side of the sealing ring (6). A sealing assembly (2) is provided on the outer wall of one end of the valve body (1). A protective cover (3) is provided on the outer side of the sealing assembly (2). One side of the sealing plate (13) and one side of the protective cover (3) are attached together. A plurality of guide assemblies (4) are evenly provided on one side of the flange one (10). The outer wall of the guide assembly (4) passes through the flange two (11) and the sealing plate (13) in sequence.

2. The integrated combination shut-off valve according to claim 1, characterized in that: Multiple connecting studs (9) are evenly arranged on the other side of the flange one (10). The outer wall of one end of the connecting stud (9) passes through the flange two (11). Fastening nuts (12) are provided on the opposite sides of the flange one (10) and the flange two (11). The inner wall of the fastening nut (12) is threaded to the outer wall of the connecting stud (9).

3. The integrated combined shut-off valve according to claim 1, characterized in that: The guide assembly (4) includes an auxiliary screw (14), one end of which is threaded to one side of flange one (10), and the outer wall of the other end of the auxiliary screw (14) passes through flange two (11) and sealing plate (13) in sequence. A cap nut (5) is provided on the other side of the sealing plate (13), and the other end of the auxiliary screw (14) is threaded to one side of the cap nut (5).

4. An integrated combined shut-off valve according to claim 3, characterized in that: The outer wall of flange two (11) is evenly provided with multiple guide holes (18). The outer wall of the auxiliary screw (14) passes through the guide holes (18), and the inner wall of the guide hole (18) and the outer wall of the auxiliary screw (14) are pre-set with a gap. The outer wall of the auxiliary screw (14) is slidably connected to a guide head (16). The outer walls of the guide head (16) are in contact with the inner walls of the guide holes (18). The outer wall of the auxiliary screw (14) is threadedly connected to a guide nut (15). One side of the guide nut (15) is in contact with the side of flange two (11) away from flange one (10). The side of the guide head (16) away from the cap nut (5) is tapered.

5. An integrated combination shut-off valve according to claim 1, characterized in that: The sealing plate (13) has a groove (17) on the side away from the protective cover (3). The inner wall of the groove (17) and the outer wall of the sealing ring (6) are interference-fitted. The inner wall of one side of the protective cover (3) has a sliding groove (19). The inner wall of the sliding groove (19) is provided with a rubber layer. The inner wall of the sliding groove (19) and the outer wall of the sealing plate (13) are in contact.

6. An integrated combination shut-off valve according to claim 1, characterized in that: The sealing assembly (2) includes an inflatable sealing ring (8), which is disposed on the outer wall of one end of the valve body (1). The outer side of the inflatable sealing ring (8) and the inner side of the other side of the protective cover (3) are interference-fitted.

7. An integrated combination shut-off valve according to claim 1, characterized in that: The sealing assembly (2) includes a conical ring (20), the inner side of which is fixedly connected to the outer wall of one end of the valve body (1). The outer wall of the conical ring (20) is provided with a rubber layer. The other side of the protective cover (3) is provided with a groove (21). The inner wall of the groove (21) is designed with a slope. The inner wall of the groove (21) fits against the outer wall of the conical ring (20).

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