Multi-way anti-locking stop valve

Abstract

The utility model discloses a multi-way anti-locking stop valve which comprises a three-way valve body, the three-way valve body is of a T-shaped structure, flow guide pieces are symmetrically arranged in two horizontally-arranged through openings of the three-way valve body, and a valve rod is in threaded connection with the middle of a positioning threaded seat arranged in the middle of the upper end of the three-way valve body. The two sides of the lower end of the limiting base are connected with the upper end of the positioning threaded base through adjusting rods, a blocking rod is installed on one side of the upper end of the limiting base, a sealing assembly is arranged at the bottom of the lower end of the valve rod, and a limiting flow guide assembly is arranged in a through opening vertically formed in the middle of the three-way valve body. According to the multi-way anti-locking stop valve, the height of the limiting seat is adjusted through the adjusting rod, so that a user drives the valve rod to rotate through the eccentric hand wheel to be attached to the upper end of the limiting seat until one side of the eccentric hand wheel makes contact with the stop rod, the eccentric hand wheel cannot continue to rotate, and therefore the situation that the valve rod is locked due to excessive rotation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to stop valves, in particular to a multi-way anti-lock stop valve. Background Art

[0002] The stop valve, also known as the gate valve, is a forced sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface to prevent leakage.

[0003] After searching, it was found that a typical stop valve in the prior art is disclosed in publication number CN205978477U, which includes a three-way valve body, a valve cover, a valve stem, a valve disc, and an eccentric handwheel. The three-way valve body is provided with a water inlet channel and a water outlet channel. The water inlet of the water inlet channel is embedded with a filter. The filter includes a mounting ring, a filter screen, and a filter membrane. The mounting ring is provided with a recessed platform. The filter membrane is fixed to the mounting ring by the filter screen embedded in the recessed platform. The mounting ring is provided with a symmetrical spring cavity. The spring cavity is provided with a spring and a clamping block. One end of the spring is fixed to the cavity wall of the spring cavity and the other end is connected to the clamping block. The wall of the water inlet channel is provided with a slot corresponding to the clamping block. The mounting ring is installed on the water inlet channel by the clamping block being embedded in the slot. The utility model has a simple structure and is easy to manufacture. It effectively prevents contamination and accumulation inside the stop valve, increases the filtering function, ensures the progress of subsequent processes, and prolongs the service life of the stop valve.

[0004] To sum up, the existing stop valves require a large force when in use, and the user may still encounter the problem of over-rotation when turning the valve stem. At this time, the valve stem may be locked, affecting the use of the stop valve. Secondly, most of the existing stop valves are two-way stop valves during use, which is inconvenient to adjust the valve ports in different positions as needed, resulting in a small range of application of the stop valve. In view of the above problems, the existing equipment needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a multi-way anti-locking stop valve to solve the problem of the existing stop valve proposed in the above background technology, which requires a large force to be used when using it, and the user may still over-rotate the valve stem during the process of turning the valve stem. At this time, the valve stem may be locked, affecting the use of the stop valve. Secondly, most of the existing stop valves are two-way stop valves during use, which is inconvenient to adjust the valve ports in different positions as needed, thereby resulting in a small range of use of the stop valve.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-way anti-lock stop valve, comprising a three-way valve body,

[0007] The three-way valve body is a T-shaped structure, and guide members are symmetrically arranged inside the two horizontally arranged openings of the three-way valve body, and the lower ends of the two guide members are connected to the sides of the upper end of the opening vertically arranged in the middle of the three-way valve body through a baffle. A positioning threaded seat is provided in the middle of the upper end of the three-way valve body, and the valve stem is threadedly connected to the middle of the positioning threaded seat, and the upper end of the valve stem passes through the limit seat and is connected to the eccentric handwheel, and the two sides of the lower end of the limit seat are connected to the upper end of the positioning threaded seat through an adjusting rod, and a baffle rod is installed on one side of the upper end of the limit seat, a sealing assembly is provided at the bottom of the lower end of the valve stem, and the sealing assembly is located between the two guide members, and the sealing assembly is located directly above the opening vertically arranged in the middle of the three-way valve body, and a limited position guide assembly is provided inside the opening vertically arranged in the middle of the three-way valve body.

[0008] Preferably, mounting flanges are welded to the outer sides of the three ports of the three-way valve body, and a nameplate is installed in the middle of the front of the three-way valve body.

[0009] Preferably, the sealing assembly includes a mounting threaded seat, a connecting rod, a positioning plate, an electromagnetic column, a metal rod and a movable seat. The middle of the upper end of the mounting threaded seat is connected to the lower end of the valve stem, and the two sides of the lower end of the mounting threaded seat are connected to the upper end of the positioning plate through symmetrically arranged connecting rods. At the same time, electromagnetic columns are provided at the upper ends of the two connecting rods. The lower ends of the electromagnetic columns are magnetically connected to the corresponding upper ends of the metal rods, and the lower ends of the metal rods pass through the positioning plate and are connected to the upper end of the movable seat. At the same time, a first liquid discharge port is opened in the middle of the movable seat, and a first sealing plate and a second sealing plate are respectively provided on both sides of the movable seat. A third sealing plate is provided on one side of the positioning plate above the second sealing plate.

[0010] Preferably, the first sealing plate, the second sealing plate and the third sealing plate are semicircular structures, and the height dimension of the first sealing plate is the same as the height and dimension of the second sealing plate and the third sealing plate.

[0011] Preferably, the limiting guide assembly includes a drainage threaded member, a filter plate, a spring telescopic rod and an upper sealing seat. The drainage threaded member is threadedly connected to the middle of the mounting flange set at the lower end, and a plurality of through holes are equidistantly provided on the side of the drainage threaded member. At the same time, the middle of the upper end of the drainage threaded member is connected to the lower end of the filter plate through a connecting column. Spring telescopic rods are symmetrically provided on both sides of the upper end of the filter plate, and the top of the spring telescopic rod is connected to the lower end of the upper sealing seat. At the same time, a second drainage port is provided in the middle of the upper sealing seat, and the position of the second drainage port is set corresponding to the position of the first drainage port.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the multi-way anti-lock stop valve,

[0013] (1) In order to solve the problem that the existing stop valve needs to use a large force when in use, and the user still may over-rotate the valve stem during the process of rotating the valve stem, and the valve stem may be locked, which affects the use of the stop valve, the present application adjusts the height of the limit seat by adjusting the rod, so that the user can drive the valve stem to rotate with the eccentric handwheel and fit it with the upper end of the limit seat until one side of the eccentric handwheel contacts the stop rod, so that the eccentric handwheel cannot continue to rotate, thereby avoiding the situation that the valve stem is locked due to excessive rotation;

[0014] (2) In order to solve the problem that most of the existing stop valves are two-way stop valves during use, which makes it inconvenient to adjust the valve ports at different positions as needed, thereby resulting in a small range of use of the stop valve, the present application adjusts the position height of the movable seat so that the first sealing plate and the second sealing plate arranged on both sides of the movable seat move downward, and then the first sealing plate continues to seal the corresponding guide member, and at the same time the second sealing plate is separated from the third sealing plate to open the corresponding guide member, so that the liquid is discharged through the opened guide member, the first drain port, the second drain port and the port arranged at the lower end of the three-way valve body, or the valve stem drives the sealing assembly to rotate so that the positions of the first sealing plate and the second sealing plate are relatively adjusted, so that the liquid inside the port on the other side is discharged through the port arranged at the lower end of the three-way valve body, thereby expanding the range of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0019] Figure 5 For this utility model Figure 3 Enlarged structural diagram at point C in the middle.

[0020] In the figure: 1, three-way valve body; 101, flow guide; 102, baffle; 2, mounting flange; 3, nameplate; 4, positioning threaded seat; 5, valve stem; 6, eccentric hand wheel; 7, limiting seat; 8, adjusting rod; 9, blocking rod; 10, mounting threaded seat; 11, connecting rod; 12, positioning plate; 13, electromagnetic column; 14, metal rod; 15, moving seat; 1501, first drainage port; 16, first sealing plate; 17, second sealing plate; 18, third sealing plate; 19, drainage threaded part; 20, filter plate; 21, spring telescopic rod; 22, upper sealing seat; 2201, second drainage port. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Please refer to Figure 1-5 , the utility model provides a kind of technical scheme: a multi-pass anti-locking stop valve, according to Figure 1 , Figure 2 and Figure 3 It is shown that three-way valve body 1 is T-shaped structure, three-way valve body 1 three pass openings outside are welded with mounting flange 2, and three-way valve body 1 front middle installation has nameplate 3, and three-way valve body 1 two horizontally arranged pass openings inside are symmetrically provided with flow guide 101, while two flow guides 101 lower end are connected with three-way valve body 1 middle vertical pass opening upper end side through baffle 102, three-way valve body 1 upper end middle is provided with positioning threaded seat 4, and positioning threaded seat 4 middle is threadedly connected with valve stem 5, and valve stem 5 upper end is connected with eccentric hand wheel 6 by penetrating limiting seat 7, limiting seat 7 lower end two sides are connected with positioning threaded seat 4 upper end by adjusting rod 8, and limiting seat 7 upper end one side is provided with blocking rod 9.

[0023] When using, the length of adjusting rod 8 is adjusted, so that limiting seat 7 is located at the corresponding height of the rotating position of valve stem 5, then valve stem 5 is rotated by eccentric hand wheel 6, so that eccentric hand wheel 6 contacts with blocking rod 9 installed on one side of limiting seat 7 upper end, then eccentric hand wheel 6 cannot continue to rotate under the action of blocking rod 9, so as to avoid excessive rotation of valve stem 5, so that valve stem 5 avoids excessive rotation and locking during use.

[0024] According to Figure 3 and Figure 4As shown, a sealing assembly is provided at the bottom of the lower end of the valve stem 5, and the sealing assembly is located between the two flow guides 101. At the same time, the sealing assembly is located just above the vertical opening in the middle of the three-way valve body 1. The sealing assembly includes a mounting threaded seat 10, a connecting rod 11, a positioning plate 12, an electromagnetic column 13, a metal rod 14 and a movable seat 15. The middle of the upper end of the mounting threaded seat 10 is connected to the lower end of the valve stem 5, and the two sides of the lower end of the mounting threaded seat 10 are connected to the upper end of the positioning plate 12 through symmetrically arranged connecting rods 11. At the same time, the upper ends of the two connecting rods 11 are provided with The electromagnetic column 13, the lower end of the electromagnetic column 13 is magnetically connected to the upper end of the corresponding metal rod 14, and the lower end of the metal rod 14 passes through the positioning plate 12 and is connected to the upper end of the movable seat 15. A spring is provided on the top of the upper end of the metal rod 14, and the spring is sleeved on the outside of the electromagnetic column 13 and connected to the lower end of the mounting threaded seat 10. At the same time, a first drainage port 1501 is opened in the middle of the movable seat 15, and a first sealing plate 16 and a second sealing plate 17 are respectively provided on both sides of the movable seat 15. A third sealing plate 18 is provided on the side of the positioning plate 12 above the second sealing plate 17.

[0025] It is further explained that the first sealing plate 16, the second sealing plate 17 and the third sealing plate 18 are semicircular structures, and the height dimension of the first sealing plate 16 is the same as the height and dimension of the second sealing plate 17 and the third sealing plate 18, so that the first sealing plate 16 and the second sealing plate 17 and the third sealing plate 18 can be used in combination to seal the guide members 101 arranged on both sides and cut off the liquid.

[0026] During use, the electromagnetic column 13 is powered off to separate the metal rod 14 from the electromagnetic column 13, and then the metal rod 14 falls and stretches the spring, so that the movable seat 15 drives the first sealing plate 16 and the second sealing plate 17 to move downward, and then the first sealing plate 16 continues to seal the corresponding guide member 101, and the second sealing plate 17 is separated from the third sealing plate 18, so that the corresponding guide member 101 is opened, so that the liquid can flow and discharge through the guide member 101. When it is necessary to open another guide member 101, the valve stem 5 is driven to rotate by the eccentric handwheel 6, so that the position of the first sealing plate 16 is swapped with the position of the second sealing plate 17 and the third sealing plate 18, and then the above operation is repeated, so that the other guide member 101 is opened and one guide member 101 is sealed.

[0027] according to Figure 3 and Figure 5As shown, the limit flow guide assembly is arranged in the through hole vertically arranged in the middle of the three-way valve body 1, and the limit flow guide assembly comprises a drainage threaded part 19, a filter plate 20, a spring telescopic rod 21 and an upper sealing seat 22, the drainage threaded part 19 is threadedly connected to the middle of the lower end of the mounting flange plate 2, a plurality of through holes are equidistantly formed in the side of the drainage threaded part 19, the upper end of the drainage threaded part 19 is connected to the lower end of the filter plate 20 through a connecting column, the spring telescopic rod 21 is symmetrically arranged on the upper end of the filter plate 20, the position of the upper sealing seat 22 can be adjusted when the upper sealing seat 22 is extruded by the sealing assembly, so that the through hole vertically arranged in the middle of the three-way valve body 1 is sealed, the two flow guide parts 101 are communicated, and the liquid is discharged, the top of the spring telescopic rod 21 is connected to the lower end of the upper sealing seat 22, and the second drainage through hole 2201 is formed in the middle of the upper sealing seat 22, and the position of the second drainage through hole 2201 corresponds to the position of the first drainage through hole 1501.

[0028] In use, the liquid enters the through hole vertically arranged in the middle of the three-way valve body 1 through the first drainage through hole 1501 and the second drainage through hole 2201, and then is discharged from the drainage threaded part 19 after being filtered by the filter plate 20.

[0029] The terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only a simplified description for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0030] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A multi-way anti-lock stop valve, comprising a three-way valve body (1), characterized in that: The three-way valve body (1) is a T-shaped structure, and the two horizontal openings of the three-way valve body (1) are symmetrically provided with flow guides (101), and the lower ends of the two flow guides (101) are connected to the upper side of the opening vertically provided in the middle of the three-way valve body (1) through a baffle (102), a positioning thread seat (4) is provided in the middle of the upper end of the three-way valve body (1), and the middle of the positioning thread seat (4) is threadedly connected to a valve stem (5), and the upper end of the valve stem (5) passes through the limit seat (7) and the bias seat (7). The valve stem (5) is connected to the center hand wheel (6), the two sides of the lower end of the limit seat (7) are connected to the upper end of the positioning threaded seat (4) through the adjusting rod (8), and a blocking rod (9) is installed on one side of the upper end of the limit seat (7), and a sealing component is provided at the bottom of the lower end of the valve stem (5), and the sealing component is located between the two guide members (101), and the sealing component is located just above the vertical opening in the middle of the three-way valve body (1), and a limit guide component is provided inside the vertical opening in the middle of the three-way valve body (1).

2. The multi-way anti-lock stop valve according to claim 1, characterized in that: The three openings of the three-way valve body (1) are all welded with mounting flanges (2) on their outer sides, and a nameplate (3) is installed in the middle of the front of the three-way valve body (1).

3. The multi-way anti-lock stop valve according to claim 1, characterized in that: The sealing assembly includes a mounting threaded seat (10), a connecting rod (11), a positioning plate (12), an electromagnetic column (13), a metal rod (14) and a movable seat (15). The middle of the upper end of the mounting threaded seat (10) is connected to the lower end of the valve stem (5), and the two sides of the lower end of the mounting threaded seat (10) are connected to the upper end of the positioning plate (12) through symmetrically arranged connecting rods (11). At the same time, the upper ends of the two connecting rods (11) are provided with electromagnetic columns (13). The lower ends of the electromagnetic columns (13) are magnetically connected to the upper ends of the correspondingly arranged metal rods (14), and the lower ends of the metal rods (14) pass through the positioning plate (12) and are connected to the upper end of the movable seat (15). At the same time, a first liquid discharge port (1501) is opened in the middle of the movable seat (15). A first sealing plate (16) and a second sealing plate (17) are respectively provided on both sides of the movable seat (15). A third sealing plate (18) is provided on the side of the positioning plate (12) located above the second sealing plate (17).

4. The multi-way anti-lock stop valve according to claim 3, characterized in that: The first sealing plate (16), the second sealing plate (17) and the third sealing plate (18) are semicircular structures, and the height dimension of the first sealing plate (16) is the same as the height and dimension of the second sealing plate (17) and the third sealing plate (18).

5. The multi-way anti-lock stop valve according to claim 1, characterized in that: The limiting guide assembly comprises a drain threaded member (19), a filter plate (20), a spring telescopic rod (21) and an upper sealing seat (22); the drain threaded member (19) is threadedly connected to the middle of the mounting flange (2) provided at the lower end, and a plurality of through holes are equidistantly provided on the side of the drain threaded member (19); at the same time, the middle of the upper end of the drain threaded member (19) is connected to the lower end of the filter plate (20) through a connecting column; spring telescopic rods (21) are symmetrically provided on both sides of the upper end of the filter plate (20), and the top of the spring telescopic rod (21) is connected to the lower end of the upper sealing seat (22); at the same time, a second drain opening (2201) is provided in the middle of the upper sealing seat (22), and the position of the second drain opening (2201) is provided corresponding to the position of the first drain opening (1501).

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