Bidirectional sealing type metal ball valve

Abstract

The utility model discloses a two-way sealing type metal ball valve, which relates to the technical field of metal ball valves and comprises a mounting rotating shaft, a supporting rod is movably connected to the bottom of the mounting rotating shaft, a connecting rotating shaft is movably connected to one side of the supporting rod, and a sealing ball body is fixedly mounted on one side of the connecting rotating shaft. And a supporting pipe is fixedly mounted on one side of the interior of the sealing ball body, a supporting column is movably connected to the interior of the supporting pipe, and a limiting pipe is movably connected to the top of the mounting rotating shaft. According to the bidirectional sealing type metal ball valve, by rotating a rotating handle, a threaded rod can rotate in a threaded ring and supports the top of a rotating shaft, so that an inserting rod can be pushed to move downwards in a limiting pipe, and a supporting plate can be pushed to move downwards; and therefore, the mounting rotating shaft and the connecting rotating shaft on one side of the supporting rod rotate, and the supporting column can move in the supporting pipe, so that the two sealing ball bodies can be pushed to move towards the two sides.

Description

Technical Field

[0001] The utility model relates to the technical field of metal ball valves, and specifically relates to a two-way sealed metal ball valve. Background Technique

[0002] A two-way sealed metal ball valve is a kind of valve that achieves opening and closing by rotating the ball around the center line of the valve body by 90°. This type of ball valve has the performance of two-way sealing, that is, it can prevent the fluid from flowing in two directions, thus achieving complete sealing.

[0003] The existing Chinese utility model patent with the reference publication number of CN217502657U discloses a floating two-way metal hard-sealed cut-off ball valve, which includes a valve body, a valve seat arranged inside the valve body, a valve ball arranged inside the valve seat, and a valve stem passing through the valve body and arranged above the valve ball. Corresponding fluid channels are opened inside the valve body, valve seat and valve ball for the fluid to pass through. An annular groove is opened at the contact surface part between the back of the valve seat and the valve body, and a sealing ring, a pressing ring and an annular spring are sequentially arranged in the annular groove from the inside to the outside. Thus, the valve seat can be pushed towards the valve ball by the elastic force generated by the extrusion of the annular spring, ensuring the sealing performance of the contact surface between the valve ball and the valve seat. The utility model adds a sealed valve seat with an annular disc spring at the back of the valve seat, adopts the form of a graphite sealing ring, realizes the floating valve seat sealing under reverse pressure, and can easily achieve two-way Class VI sealing.

[0004] The sealing effect of the existing two-way sealed metal ball valves is not good. Most of them only have single-layer sealing, and it is easy to cause leakage problems due to excessive pressure or incomplete sealing. Moreover, the operation of the existing two-way sealed metal ball valves is relatively cumbersome. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the problems of cumbersome operation and poor sealing effect existing in the prior art, and provides a two-way sealed metal ball valve.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A two-way sealed metal ball valve includes:

[0008] Install a rotating shaft. The bottom of the installed rotating shaft is movably connected to a support rod. One side of the support rod is movably connected to a connecting rotating shaft. One side of the connecting rotating shaft is fixedly installed with a sealing sphere. One side inside the sealing sphere is fixedly installed with a support tube. The inside of the support tube is movably connected to a support column. The top of the installed rotating shaft is movably connected to a limiting tube. The top outside of the limiting tube is fixedly installed with a turntable. The top of the limiting tube is fixedly installed with a connecting tube. The top of the connecting tube is fixedly installed with a threaded ring. The inside of the threaded ring is movably connected to a support rotating shaft. The top of the support rotating shaft is movably connected to a threaded rod. The outside of the top of the threaded rod is fixedly installed with a turning handle.

[0009] In a preferred embodiment, a support plate is fixedly installed at the top of the installed rotating shaft. An insertion rod is fixedly installed at the top of the support plate. The insertion rod is a structure for moving up and down inside the limiting tube.

[0010] In a preferred embodiment, support grooves are fixedly installed on both sides of the support plate. The support grooves are in a "U" shape. The support grooves are structures for support.

[0011] In a preferred embodiment, a telescopic rod is fixedly installed at the bottom of the support groove. A connecting block is fixedly installed at the bottom of the telescopic rod. The connecting block is a structure for connection.

[0012] In a preferred embodiment, a valve tube is movably connected to the outside of the sealing sphere. A connecting rod is fixedly installed at the bottom inside the valve tube. The connecting rod is a structure for support.

[0013] In a preferred embodiment, a connection hole is fixedly installed at the top inside the valve tube. Two sealing rings are fixedly installed on both sides inside the valve tube. The sealing rings are structures for sealing.

[0014] In a preferred embodiment, two delivery tubes are fixedly installed on both sides of the valve tube. A connection flange is fixedly installed on one side of the delivery tube. The connection flange is a structure for connection.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. For this double - acting sealed metal ball valve, by rotating the turning handle, the threaded rod can be made to rotate inside the threaded ring to support the top of the rotating shaft, thereby pushing the insertion rod to move downward inside the limit tube, then pushing the support plate downward, causing the connecting rotating shaft on one side of the installation rotating shaft and the support rod to rotate. Then, by moving the support column inside the support tube, the two sealing spheres can be pushed to move to both sides, improving the sealing effect of this double - acting sealed metal ball valve, avoiding the problem of reduced sealing effect caused by wear after long - term use, and enhancing the practicality of this double - acting sealed metal ball valve;

[0017] 2. For this double - acting sealed metal ball valve, by rotating the turntable, the limit tube can be driven to rotate. The limit tube can support and limit the insertion rod, thereby driving the support plate to rotate, making the two installation rotating shafts rotate, and then making the two sealing spheres rotate, so as to open or close this double - acting sealed metal ball valve, improving the convenience and practicality of this double - acting sealed metal ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure in the present utility model;

[0019] Figure 2 It is a schematic diagram of the installation rotating shaft in the present utility model;

[0020] Figure 3 It is a schematic diagram of the support plate in the present utility model;

[0021] Figure 4 It is a schematic diagram of the limit tube in the present utility model;

[0022] Figure 5 It is a schematic diagram of the valve tube in the present utility model.

[0023] 1. Installation rotating shaft; 11. Support rod; 12. Connecting rotating shaft; 13. Sealing sphere; 14. Support tube; 15. Support column; 2. Support plate; 21. Insertion rod; 22. Support groove; 23. Telescopic rod; 24. Connecting block; 3. Limit tube; 31. Turntable; 32. Connecting tube; 33. Threaded ring; 34. Support rotating shaft; 35. Threaded rod; 36. Turning handle; 4. Valve tube; 41. Connecting rod; 42. Connecting hole; 43. Sealing ring; 44. Delivery pipe; 45. Connecting flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Combined with the attached Figures 1-5 , in this embodiment, a two-way sealed metal ball valve includes: a mounting rotating shaft 1, a support rod 11 is movably connected to the bottom of the mounting rotating shaft 1, a connecting rotating shaft 12 is movably connected to one side of the support rod 11, a sealing sphere 13 is fixedly installed on one side of the connecting rotating shaft 12, a support pipe 14 is fixedly installed on one side inside the sealing sphere 13, and a support column 15 is movably connected inside the support pipe 14.

[0026] Specifically, the mounting rotating shaft 1 and the connecting rotating shaft 12 can be supported by the support rod 11. By rotating the mounting rotating shaft 1 and the connecting rotating shaft 12, the two sealing spheres 13 can move to both sides. By moving the support column 15 inside the support pipe 14, the stability of the separation of the sealing spheres 13 can be improved, and the practicability of the two-way sealed metal ball valve is improved.

[0027] A support plate 2 is fixedly installed at the top of the mounting rotating shaft 1, and an insertion rod 21 is fixedly installed at the top of the support plate 2.

[0028] Support grooves 22 are fixedly installed on both sides of the support plate 2, and the support grooves 22 are in a "U" shape.

[0029] A telescopic rod 23 is fixedly installed at the bottom of the support groove 22, and a connecting block 24 is fixedly installed at the bottom of the telescopic rod 23.

[0030] Specifically, the insertion rod 21 can move up and down inside the limit pipe 3. The support plate 2 can be supported by the support grooves 22. By the telescopic movement of the telescopic rod 23, the lifting of the support grooves 22 can be supported.

[0031] A limit pipe 3 is movably connected to the top of the mounting rotating shaft 1. A turntable 31 is fixedly installed on the outer top of the limit pipe 3. A connecting pipe 32 is fixedly installed on the top of the limit pipe 3. A threaded ring 33 is fixedly installed on the top of the connecting pipe 32. A support rotating shaft 34 is movably connected inside the threaded ring 33. A threaded rod 35 is movably connected to the top of the support rotating shaft 34. A turning handle 36 is fixedly installed on the outer side of the top of the threaded rod 35.

[0032] Specifically, by rotating the handle 36, the threaded rod 35 can rotate on the top of the support rotating shaft 34 and inside the threaded ring 33, so as to push the insertion rod 21 to move downward inside the limit tube 3, and then the push support plate 2 can be moved downward. By rotating the turntable 31, the limit tube 3 can be driven to rotate. With the support of the insertion rod 21, the support plate 2 can be rotated, thus driving the two sealing spheres 13 to rotate.

[0033] A valve pipe 4 is connected to the outer movement of the sealing sphere 13, and a connecting rod 41 is fixedly installed at the bottom inside the valve pipe 4.

[0034] A connection hole 42 is fixedly installed at the top inside the valve pipe 4, and two sealing rings 43 are fixedly installed on both sides inside the valve pipe 4.

[0035] Two delivery pipes 44 are fixedly installed on both sides of the valve pipe 4, and a connection flange 45 is fixedly installed on one side of the delivery pipe 44.

[0036] Specifically, the connecting rod 41 can support the connecting block 24, and the connecting block 24 is movably connected to the connecting rod 41. The pipes can be connected through the two connection flanges 45, and the two-way sealing metal ball valve can be sealed by the sealing ring 43 fitting the sealing sphere 13.

[0037] Working principle: First, connect the two-way sealed metal ball valve to the pipelines on both sides through two connecting flanges 45. By rotating the turntable 31, the limit pipe 3 can be driven to rotate. The insertion rod 21 is supported by the limit pipe 3. The rotation of the insertion rod 21 can drive the support plate 2 to rotate, so that the two mounting rotating shafts 1 can rotate horizontally. Through the connection of the support rod 11 to the connecting rotating shaft 12, the two sealing spheres 13 can be rotated, making the sealing spheres 13 fit with the inner sealing rings 43 on both sides of the valve pipe 4, thereby achieving double-layer sealing inside the two-way sealed metal ball valve, improving the sealing effect, practicability and convenience of the two-way sealed metal ball valve. By rotating the handle 36, the threaded rod 35 can rotate inside the threaded ring 33 and on top of the support rotating shaft 34, so as to push the insertion rod 21 to move downward inside the limit pipe 3, and then push the support plate 2 and the two mounting rotating shafts 1 to move downward. Through the support of the support rod 11 for the mounting rotating shaft 1 and the connecting rotating shaft 12, through the rotation of the mounting rotating shaft 1 and the connecting rotating shaft 12, the two sealing spheres 13 can be moved to both sides, thus avoiding the problem of the sealing effect decreasing due to wear during long-term use, increasing the fitting degree between the sealing spheres 13 and the sealing rings 43, and improving the sealing effect of the two-way sealed metal ball valve. When the support plate 2 moves downward, the telescopic rod 23 contracts, which can play a supporting role. The connecting block 24 can rotate inside the connecting rod 41, improving the convenience and stability of the two-way sealed metal ball valve, and at the same time improving the sealing effect of the two-way sealed metal ball valve.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A two-way sealed metal ball valve, characterized in that, The two-way sealed metal ball valve includes a mounting rotating shaft (1). A support rod (11) is movably connected to the bottom of the mounting rotating shaft (1). A connecting rotating shaft (12) is movably connected to one side of the support rod (11). A sealing sphere (13) is fixedly installed on one side of the connecting rotating shaft (12). A support pipe (14) is fixedly installed on one side inside the sealing sphere (13). A support column (15) is movably connected inside the support pipe (14). A limit pipe (3) is movably connected to the top of the mounting rotating shaft (1). A turntable (31) is fixedly installed on the outer top of the limit pipe (3). A connecting pipe (32) is fixedly installed on the top of the limit pipe (3). A threaded ring (33) is fixedly installed on the top of the connecting pipe (32). A support rotating shaft (34) is movably connected inside the threaded ring (33). A threaded rod (35) is movably connected to the top of the support rotating shaft (34). A turning handle (36) is fixedly installed on the outer side of the top of the threaded rod (35).

2. The bi-directional sealed metal ball valve according to claim 1, characterized in that: A support plate (2) is fixedly installed on the top of the mounting rotating shaft (1). An insertion rod (21) is fixedly installed on the top of the support plate (2).

3. The bi-directional sealed metal ball valve according to claim 2, characterized in that: Support grooves (22) are fixedly installed on both sides of the support plate (2). The support grooves (22) are in a "U" shape.

4. The bi-directional sealed metal ball valve according to claim 3, characterized in that: A telescopic rod (23) is fixedly installed at the bottom of the support groove (22). A connecting block (24) is fixedly installed at the bottom of the telescopic rod (23).

5. The two-way sealed metal ball valve according to claim 1, characterized in that: A valve pipe (4) is movably connected to the outside of the sealing sphere (13). A connecting rod (41) is fixedly installed at the bottom inside the valve pipe (4).

6. The double-sealed metal ball valve according to claim 5, wherein: A connecting hole (42) is fixedly installed at the top inside the valve pipe (4). Two sealing rings (43) are fixedly installed on both sides inside the valve pipe (4).

7. The bi-directional sealed metal ball valve according to claim 6, characterized in that: Two conveying pipes (44) are fixedly installed on both sides of the valve pipe (4). A connecting flange (45) is fixedly installed on one side of the conveying pipe (44).

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