One-way ball valve with end cap

Abstract

The utility model relates to ball valve design technical field discloses a one -way ball valve with end cover, including the valve body of one -way ball valve, the flange disc of one end of valve body, the open end of one end of valve body away from flange disc, the end plate is provided with at open end away from one end of valve body, the connecting ring is set up on open end, the side of connecting ring is provided with hinged seat, the end cover for covering outside end plate is set up on hinged seat, the hinged arm that hinged in hinged seat is provided with at end cover side edge, the circumferential side of end plate is provided with rubber ring, the ring platform for pressing on rubber ring is set up in end cover, the side away from hinged arm of end cover is provided with pressure arm, the side away from hinged seat of connecting ring is provided with fixed arm, the movable buckle that the section is "" and supplies pressure arm end embedded is rotatably connected on fixed arm, the end of movable buckle is provided with screw hole, the screw thread connection of screw thread hole is used for the threaded shaft of pressing in pressure arm end part.

Description

Technical Field

[0001] This utility model belongs to the field of ball valve design technology, and specifically relates to a one-way ball valve with an end cap. Background Technology

[0002] One-way ball valves, also known as aluminum alloy one-way ball valves, feature an aluminum alloy single flange structure. The other end can be made male or female according to customer needs for connection with quick couplings. They are one of the main accessories on oil tanks and tank trucks. Suitable for opening and closing control of non-corrosive liquid transportation pipelines.

[0003] Currently, Chinese patent publication number CN217272067U, published on August 23, 2022, discloses a connection-stable three-piece ball valve, including a valve body, valve core, valve stem, handle, threaded rod, and fastening nut. The handle includes a connecting plate fixed to the valve stem and a handle rod connected to the connecting plate at one end. A connector is provided between the handle rod and the connecting plate for detachably connecting the handle rod to the connecting plate. The connector includes a fixing plate on one side of the connecting plate, connecting arms on both sides at one end of the handle rod, a slot on the connecting arm for the fixing plate to be inserted into, a rotating arm rotatably connected to the handle rod at one end, a snap-fit ​​protrusion at the end of the rotating arm away from the handle rod, and an oblong hole on the fixing plate for the snap-fit ​​protrusion to be inserted into.

[0004] Ball valves are frequently used as opening and closing devices for equipment such as tank trucks, gas stations, oil depots, and water trucks. One end of the ball valve is connected to the equipment via a flange, while the other end is open. During the use of ball valves, liquid can easily leak out from the open end of the ball valve due to misoperation or leakage of the valve core, resulting in liquid waste. Utility Model Content

[0005] The purpose of this invention is to provide a one-way ball valve with an end cap, which can provide a double-layer seal at the opening end of the valve body.

[0006] The above technical purpose of the present utility model is achieved through the following technical solution: a one-way ball valve with an end cover, comprising a valve body of the one-way ball valve, a flange located at one end of the valve body, and an open end located at the end of the valve body away from the flange, wherein an end plate is disposed at the end of the open end away from the valve body, a connecting ring is sleeved on the open end, a hinge seat is disposed on one side of the connecting ring, an end cover for covering the outside of the end plate is disposed on the hinge seat, a hinge arm hinged in the hinge seat is disposed at the side edge of the end cover, a rubber ring is disposed on the peripheral side of the end plate, a ring platform for pressing on the rubber ring is disposed inside the end cover, a pressing arm is disposed on the side of the end cover away from the hinge arm, a fixing arm is disposed on the side of the connecting ring away from the hinge seat, a movable buckle with a "∩"-shaped cross section for embedding the end of the pressing arm is rotatably connected to the fixing arm, a threaded hole is formed at the end of the movable buckle, and a threaded shaft for abutting against the end of the pressing arm is threadedly connected in the threaded hole.

[0007] The present utility model is further configured such that: one end of the threaded shaft is rotatably connected with a pressing platform for pressing against the fixing arm, and a knob is disposed at the end of the threaded shaft away from the pressing platform.

[0008] The present utility model is further configured such that: an external thread surface is formed on the outer wall of the peripheral side of the open end, and an internal thread sleeve for abutting against the connecting ring is threadedly connected to the open end.

[0009] The present utility model is further configured such that: anti-slip stripes are formed on the peripheral side of the internal thread sleeve.

[0010] The present utility model is further configured such that: a through hole is formed on the inner wall of the end cover, an indicating post is disposed in the through hole, a push plate is disposed at the end of the indicating post located inside the end cover, and an elastic diaphragm is disposed between the peripheral side of the push plate and the end cover.

[0011] The present utility model is further configured such that: a transparent sleeve wrapping the outside of the through hole and having scales on the surface is fixed on the outer wall of the end cover, and an indicating ball located inside the transparent sleeve is disposed at the end of the indicating post away from the push plate.

[0012] In conclusion, the present utility model has the following beneficial effects:

[0013] 1. When it is necessary to close the open end, flip the end cover to make the end cover cover the outside of the end plate of the open end, at this time the ring platform can abut against the rubber ring, then flip the movable buckle to make the end of the pressing arm embed into the movable buckle, then rotate the threaded shaft to make the threaded shaft abut tightly against the end of the pressing arm, as the threaded shaft is continuously tightened, the ring platform can be pressed tightly against the rubber ring, the end plate position can be sealed through the end cover, at this time the valve core inside the valve body serves as the first layer of seal, while the end cover serves as the second layer of seal, which is finally beneficial to reducing the possibility of liquid leakage;

[0014] When it is necessary to open the end cover, simply loosen the threaded shaft, then open the movable buckle on the pressure arm, then flip open the end cover, and finally the opening and closing operation of the end cover can be completed quickly.

[0015] 2. The threaded shaft can be easily clamped by the pressure table when the threaded shaft is rotated using the rotating connection of the pressure table. At the same time, the threaded shaft can be easily rotated by the knob at the end of the threaded shaft.

[0016] 3. The end cap and the movable buckle are connected to both sides of the connecting ring, and the connecting ring is fitted onto the open end. At this time, the position of the end cap and the movable buckle can be adjusted by rotating the connecting ring, so as to adjust the position of the end cap and the movable buckle on the side of the valve body according to the actual use scenario. After the position of the end cap and the movable buckle is adjusted, the internal threaded sleeve can be rotated to make the internal threaded sleeve abut against the connecting ring, thereby locking the position of the connecting ring.

[0017] 4. The anti-slip stripes on the circumference of the internal threaded sleeve facilitate easy rotation of the internal threaded sleeve;

[0018] 5. When the valve core leaks and the opening is filled with liquid, the pressurized liquid can push the push plate. At this time, the indicator column can move outward on the end cover, thereby indicating to the operator that the valve core is leaking and making it convenient for the operator to take remedial action in advance when the end cover is opened.

[0019] 6. The end cap uses a transparent sleeve to wrap around the outside of the through hole, thereby protecting the indicator post and indicator ball. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model, with the end cap in the open state at this time;

[0022] Figure 2 This is a structural plan view of the present invention, with the end cap in the closed state at this time;

[0023] Figure 3 This is a cross-sectional view of the movable buckle in this utility model;

[0024] Figure 4 This is a partial structural cross-sectional view of the end cap of this utility model, in which the push plate is not under pressure;

[0025] Figure 5 This is a partial structural cross-sectional view of the end cap of this utility model, in which the push plate is under pressure.

[0026] In the diagram, 1. Valve body; 11. Flange; 12. Open end; 121. End plate; 122. Rubber ring; 123. External threaded surface; 2. Connecting ring; 21. Hinge seat; 22. Fixed arm; 3. End cover; 301. Ring platform; 31. Hinge arm; 32. Pressure arm; 33. Through hole; 34. Indicator post; 341. Push plate; 342. Elastic diaphragm; 343. Indicator ball; 35. Transparent sleeve; 4. Movable buckle; 41. Threaded hole; 42. Threaded shaft; 421. Pressure platform; 422. Knob; 5. Internal threaded sleeve; 51. Anti-slip stripe. Detailed Implementation

[0027] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] A one-way ball valve with an end cap, see reference Figure 1 , Figure 2 The one-way ball valve with end cap includes a valve body 1, a flange 11 at one end of the valve body 1, and an open end 12 at the end of the valve body 1 away from the flange 11. An end plate 121 is integrally provided at the end of the open end 12 away from the valve body 1, and a connecting ring 2 is sleeved on the open end 12. At the same time, an external thread surface 123 is provided on the outer wall of the peripheral side of the open end 12. An internal thread sleeve 5 for abutting against the connecting ring 2 is threaded on the open end 12, and anti-slip stripes 51 are provided on the peripheral side of the internal thread sleeve 5.

[0029] Reference Figure 1 , Figure 2 , Figure 3, a hinge seat 21 is welded to one side of the connecting ring 2, and the hinge seat 21 is provided with an end cover 3 for covering the outside of the end plate 121, wherein a hinge arm 31 hinged in the hinge seat 21 is welded at the side edge of the end cover 3, a rubber ring 122 is adhesively fixed on the peripheral side of the end plate 121, a ring platform 301 for pressing against the rubber ring 122 is integrally arranged inside the end cover 3, a pressing arm 32 is welded to the side of the end cover 3 away from the hinge arm 31, wherein a fixing arm 22 is welded to the side of the connecting ring 2 away from the hinge seat 21, and a movable buckle 4 is rotatably connected to the fixing arm 22 through a rotating shaft and a hole, meanwhile, the movable buckle 4 has a "∩" shaped cross section and allows the end of the pressing arm 32 to be embedded therein, the end of the movable buckle 4 is further provided with a threaded hole 41, wherein a threaded shaft 42 is threadedly connected in the threaded hole 41, one end of the threaded shaft 42 is rotatably connected with a pressing platform 421 for pressing tightly against the fixing arm 22, and a knob 422 is welded at the end of the threaded shaft 42 away from the pressing platform 421.

[0030] With reference to Figure 1 , Figure 2 , Figure 4 , a through hole 33 is opened on the inner wall of the end cover 3, and an indicating post 34 is arranged in the through hole 33, wherein a push plate 341 is welded at the end of the indicating post 34 located inside the end cover 3, and an elastic diaphragm 342 is adhesively fixed and sealed between the peripheral side of the push plate 341 and the end cover 3; meanwhile, a transparent sleeve 35 wrapping the outer side of the through hole 33 is adhesively fixed on the outer wall of the end cover 3, and the surface of the transparent sleeve 35 is provided with graduations, wherein an indicating ball 343 located inside the transparent sleeve 35 is integrally arranged at the end of the indicating post 34 away from the push plate 341.

[0031] Working principle: when it is necessary to close the open end 12, flip the end cover 3 so that the end cover 3 covers the outside of the end plate 121 of the open end 12, at this time the ring platform 301 can abut against the rubber ring 122, then flip the movable buckle 4, the end of the pressing arm 32 can be embedded into the movable buckle 4, then rotate the threaded shaft 42 through the knob 422, so that the pressing platform 421 at the end of the threaded shaft 42 abuts tightly against the end of the pressing arm 32, with the continuous tightening of the threaded shaft 42, the ring platform 301 can be pressed tightly against the rubber ring 122, the position of the end plate 121 can be sealed by the end cover 3, at this time the valve core inside the valve body 1 serves as the first layer of seal, and the end cover 3 serves as the second layer of seal, which is finally beneficial to reducing the possibility of liquid leakage;

[0032] When it is necessary to open the end cover 3, only the threaded shaft 42 needs to be loosened, then the movable buckle 4 on the pressing arm 32 can be opened, then the end cover 3 can be flipped open, and finally the opening and closing operation of the end cover 3 can be completed quickly.

Claims

1. A one-way ball valve with an end cap, comprising a valve body (1), a flange (11) at one end of the valve body (1), and an open end (12) at the end of the valve body (1) away from the flange (11), characterized in that: An end plate (121) is disposed at an end of the open end (12) remote from the valve body (1), a connecting ring (2) is sleeved on the open end (12), a hinge seat (21) is disposed on one side of the connecting ring (2), an end cap (3) for covering the outside of the end plate (121) is disposed on the hinge seat (21), a hinge arm (31) hinged in the hinge seat (21) is disposed at a side edge of the end cap (3), a rubber ring (122) is disposed on the peripheral side of the end plate (121), an annular platform (301) for pressing against the rubber ring (122) is disposed inside the end cap (3), a pressing arm (32) is disposed on a side of the end cap (3) remote from the hinge arm (31), a fixing arm (22) is disposed on a side of the connecting ring (2) remote from the hinge seat (21), a movable buckle (4) which has a "∩"-shaped cross section and allows the end of the pressing arm (32) to be embedded therein is rotatably connected to the fixing arm (22), a threaded hole (41) is opened at an end of the movable buckle (4), and a threaded shaft (42) for abutting against the end of the pressing arm (32) is threadedly connected in the threaded hole (41).

2. A one-way ball valve with an end cap according to claim 1, characterized in that: One end of the threaded shaft (42) is rotatably connected with a pressing platform (421) for pressing against the fixing arm (22), and a knob (422) is disposed at an end of the threaded shaft (42) remote from the pressing platform (421).

3. A one-way ball valve with an end cap according to claim 1, characterized in that: An external threaded surface (123) is opened on the outer wall of the peripheral side of the open end (12), and an internal threaded sleeve (5) for abutting against the connecting ring (2) is threadedly connected to the open end (12).

4. A one-way ball valve with an end cap according to claim 3, characterized in that: Anti-slip stripes (51) are disposed on the peripheral side of the internal threaded sleeve (5).

5. A one-way ball valve with an end cap according to claim 1, characterized in that: A through hole (33) is opened on the inner wall of the end cap (3), an indicating post (34) is disposed in the through hole (33), a push plate (341) is disposed at an end of the indicating post (34) located inside the end cap (3), and an elastic diaphragm (342) is disposed between the peripheral side of the push plate (341) and the end cap (3).

6. A one-way ball valve with an end cap according to claim 5, characterized in that: A transparent sleeve (35) which wraps the outside of the through hole (33) and has scales on the surface is fixed on the outer wall of the end cap (3), and an indicating ball (343) located inside the transparent sleeve (35) is disposed at an end of the indicating post (34) remote from the push plate (341).

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