Threaded ball valve

Abstract

The threaded ball valve comprises a ball valve shell, an inlet mechanism is arranged at the left end of the ball valve shell, the inlet mechanism is composed of a first inlet section, a second inlet section and an inner pipe, and an annular opening is formed between the first inlet section and the second inlet section; the outer side of the first inlet section and the outer side of the second inlet section are fixedly connected through a plurality of connecting frames, and the right end of the second inlet section is fixedly connected to the left end of the ball valve shell. An inner pipe is inserted into the first inlet section through threads; a limiting ring opening is formed between the right part of the outer side of the inner pipe and the right part of the inner side of the second inlet section; according to the overall structure provided by the embodiment of the invention, the ejector rod drives the sealing ring mechanism to move rightwards, so that the second sealing ring moves rightwards to extrude the outer side of the ball core, the second sealing ring and the outer side of the ball core are extruded more tightly, a gap generated by abrasion of the second sealing ring is made up, the sealing degree of the second sealing ring is increased, and the service life of the ball core is prolonged. And the service life of the whole ball valve is longer.

Description

Technical Field

[0001] The present application relates to the technical field of ball valves, and in particular to a threaded ball valve. Background Art

[0002] The ball valve's opening and closing parts are driven by the valve stem and rotate around the valve axis. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-shaped ball core and the metal valve seat with hard alloy overlay welding, which is particularly suitable for media containing fibers, small solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction of the media in the pipeline, but also close any channel and connect the other two channels. The ball valve should generally be installed horizontally in the pipeline. Ball valves are divided into: pneumatic ball valves, electric ball valves, and manual ball valves according to the driving mode; However, after long-term use, the seals of ordinary ball valves are worn, resulting in poor sealing effect of the ball valve, failing to achieve the ideal sealing effect, and even leakage. Therefore, we propose a threaded ball valve. Summary of the Invention

[0003] The present application provides a threaded ball valve to solve the above-mentioned problems.

[0004] The present application provides a threaded ball valve, comprising: A ball valve housing, wherein the left end of the ball valve housing is provided with an inlet mechanism, the inlet mechanism consisting of a first inlet section, a second inlet section, and an inner tube, a circular opening being provided between the first inlet section and the second inlet section, the outer sides of the first inlet section and the second inlet section being fixedly connected by a plurality of connecting frames, and the right end of the second inlet section being fixedly connected to the left end of the ball valve housing; The interior of the first inlet section is connected to an inner tube via a thread; A limiting ring is provided between the outer right portion of the inner tube and the inner right portion of the second inlet section, and a sealing ring mechanism is movably inserted into the limiting ring. A plurality of push rods are movably connected in an annular array between the circular ring opening and the limiting ring opening inside the inner tube, the right end of the push rod squeezes the left end of the sealing ring mechanism, and the left end is located inside the circular ring opening; A manually adjustable swivel is inserted into the inner portion of the circular opening, and the right side of the manually adjustable swivel is threadedly sleeved onto the outer side of the second inlet section; A ball core is movably provided inside the ball valve housing, and the outer side of the left end of the ball core is pressed and fitted with the right end of the sealing ring mechanism.

[0005] Preferably, the sealing ring mechanism consists of a first hard ring plate, a connecting ring, a first sealing ring, a second hard ring plate and a second sealing ring. The right end of the first hard ring plate is fixedly connected to the connecting ring, the right end of the connecting ring is fixedly connected to the second hard ring plate, and the first sealing ring is fixedly connected on both the inner and outer sides of the connecting ring, and the right end of the second hard ring plate is fixedly connected to the second sealing ring.

[0006] Preferably, the right side of the second sealing ring is arc-shaped.

[0007] Preferably, two third sealing rings are fixedly embedded in the right outer portion of the inner tube, and the push rod is movably inserted into the middle portion of the third sealing ring.

[0008] Preferably, stabilizing rings are fixedly connected to the left and right sides of the inner side wall of the ball valve housing, and a plurality of balls are evenly and rotatably inlaid on the inner side of the stabilizing ring, and the balls are in sliding contact with the outer side of the ball core.

[0009] Preferably, the lower end of the ball core is fixedly connected to a rotating shaft, and the rotating shaft is inserted into the lower side of the ball valve housing through a bearing, the upper end of the ball core is inserted into a transmission shaft, and the transmission shaft seal is inserted through the middle of the upper side of the ball valve housing.

[0010] Preferably, the right end of the ball valve housing is fixedly connected with an outlet pipe.

[0011] Preferably, a plurality of protrusions are fixedly connected to the outer side of the manually adjustable swivel at equal intervals.

[0012] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: The overall structure provided by the embodiment of the present application is that when the ball valve is used for a long time and the second sealing ring is worn, the protrusion can be manually rotated to drive the manual adjustment ring to rotate, so that the manual adjustment ring is displaced to the right and squeezes the push rod, so that the push rod drives the sealing ring mechanism to displace to the right, and the second sealing ring is displaced to the right to squeeze the outside of the ball core, so that the second sealing ring and the outside of the ball core are squeezed more tightly, thereby compensating for the gap caused by the wear of the second sealing ring, increasing the sealing degree of the second sealing ring, and extending the service life of the overall ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a cross-sectional view of the inlet mechanism of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0016] In the figure: 1. Inlet mechanism; 2. Inner tube; 3. Ball valve housing; 4. Ball core; 5. Stabilizing ring; 6. Ball; 7. Transmission shaft; 8. Manual adjustment swivel; 9. Connecting frame; 10. Circular ring mouth; 11. Third sealing ring; 12. Push rod; 13. Limiting ring mouth; 14. Sealing ring mechanism; 141. First hard ring plate; 142. Connecting ring; 143. First sealing ring; 144. Second hard ring plate; 145. Second sealing ring; 15. Second inlet section; 16. First inlet section; 17. Bump; 18. Outlet pipe. DETAILED DESCRIPTION

[0017] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0018] The various embodiments of the present application may be presented in the form of a range. It should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the present application. Therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, regardless of the range. In addition, whenever a numerical range is indicated in this application, it is intended to include any quoted number (fraction or integer) within the indicated range. Unless otherwise specified, the various raw materials, reagents, instruments and equipment used in this application are all commercially available or can be prepared using existing equipment.

[0019] In this application, unless otherwise specified, the directional words used, such as "upper" and "lower", specifically refer to the directions of the drawings in the accompanying drawings. In addition, in this application, the terms "including", "comprising", etc. mean "including but not limited to". In this application, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In this application, "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. Wherein A and B can be singular or plural. In this application, "at least one" means one or more, and "plurality" means two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of singular or plural items. For example, "at least one of a, b, or c" or "at least one of a, b, and c" can both mean: a, b, c, ab, i.e. a and b, ac, bc, or abc, where a, b, c can be single or multiple.

[0020] like Figures 1-4 As shown: This embodiment of the application provides a threaded ball valve, comprising: A ball valve housing 3 is provided with an inlet mechanism 1 at the left end of the ball valve housing 3. The inlet mechanism 1 consists of a first inlet section 16, a second inlet section 15, and an inner tube 2. A circular opening 10 is provided between the first inlet section 16 and the second inlet section 15. The outer sides of the first inlet section 16 and the second inlet section 15 are fixedly connected by multiple connecting brackets 9. The right end of the second inlet section 15 is fixedly connected to the left end of the ball valve housing 3. The interior of the first inlet section 16 is connected to the inner tube 2 via a thread; A limiting ring opening 13 is provided between the outer right portion of the inner tube 2 and the inner right portion of the second inlet section 15, and a sealing ring mechanism 14 is movably inserted into the limiting ring opening 13; A plurality of push rods 12 are movably connected in an annular array between the circular opening 10 and the limiting ring opening 13 inside the inner tube 2. The right end of the push rod 12 squeezes the left end of the sealing ring mechanism 14, and the left end is located inside the circular opening 10. A manually adjustable swivel 8 is inserted into the inner portion of the circular opening 10 , and the right side of the manually adjustable swivel 8 is threadedly sleeved onto the outer side of the second inlet section 15 ; A ball core 4 is movably provided inside the ball valve housing 3 , and the outer side of the left end of the ball core 4 is pressed and fitted with the right end of the sealing ring mechanism 14 .

[0021] like Figure 4 As shown: the sealing ring mechanism 14 consists of a first hard ring plate 141, a connecting ring 142, a first sealing ring 143, a second hard ring plate 144 and a second sealing ring 145. The right end of the first hard ring plate 141 is fixedly connected to the connecting ring 142, the right end of the connecting ring 142 is fixedly connected to the second hard ring plate 144, and the first sealing ring 143 is fixedly connected to the inner and outer sides of the connecting ring 142, and the right end of the second hard ring plate 144 is fixedly connected to the second sealing ring 145.

[0022] Specifically, the first hard ring plate 141 , the connecting ring 142 and the second hard ring plate 144 are all made of hard materials, such as stainless steel. The first sealing ring 143 is used to seal the outer side of the sealing ring mechanism 14 and the limiting ring opening 13 .

[0023] like Figure 1 As shown, the right side of the second sealing ring 145 is arc-shaped.

[0024] Specifically, the arc-shaped arrangement can reduce the wear of the second sealing ring 145 , and the leftward displacement of the second sealing ring 145 after wear can also improve the sealing performance of the second sealing ring 145 .

[0025] like Figure 3 As shown, two third sealing rings 11 are fixedly embedded in the right outer side of the inner tube 2 , and the push rod 12 is movably inserted into the middle of the third sealing ring 11 .

[0026] Specifically, the third sealing ring 11 can enhance the sealing performance of the inner side between the inner tube 2 and the second inlet section 15 .

[0027] like Figure 2 As shown: the left and right sides of the inner wall of the ball valve housing 3 are fixedly connected with a stabilizing ring 5, and the inner side of the stabilizing ring 5 is evenly and rotatably inlaid with a plurality of balls 6, and the balls 6 are in sliding contact with the outer side of the ball core 4.

[0028] Specifically, the arrangement of the balls 6 can reduce the wear of the ball core 4 .

[0029] like Figure 2 As shown: the lower end of the ball core 4 is fixedly connected to a rotating shaft, and the rotating shaft is inserted into the lower side of the ball valve housing 3 through a bearing, and the upper end of the ball core 4 is inserted into the transmission shaft 7, and the transmission shaft 7 is sealed and inserted into the middle of the upper side of the ball valve housing 3.

[0030] Specifically, the ball core 4 adopts the existing ball valve core on the market, which is the existing technology, and the connection method of the ball core 4 also adopts the existing ball valve connection method on the market.

[0031] like Figure 1 and Figure 2As shown: the right end of the ball valve housing 3 is fixedly connected with an outlet pipe 18.

[0032] Specifically: the outlet pipe 18 is the material outlet of the ball valve.

[0033] like Figure 1 As shown, a plurality of protrusions 17 are fixedly connected to the outer side of the manually adjustable swivel 8 at equal intervals.

[0034] Specifically, the protrusion 17 can conveniently manually rotate the manual adjustment ring 8, so that the manual adjustment ring 8 rotates.

[0035] Principle: When the device is in use, the inlet and outlet pipes 18 of the inlet mechanism 1 are connected between the pipelines. The transmission shaft 7 is manually or electrically driven to rotate 90 degrees forward and reverse, which drives the ball core 4 to rotate forward and reverse, thereby realizing the on / off state of the pipeline; When the ball valve is used for a long time and the second sealing ring 145 is worn, the protrusion 17 can be manually rotated to drive the manual adjustment ring 8 to rotate, so that the manual adjustment ring 8 is displaced to the right and the push rod 12 is squeezed, so that the push rod 12 drives the sealing ring mechanism 14 to move to the right, and the second sealing ring 145 is displaced to the right to squeeze the outer side of the ball core 4, so that the second sealing ring 145 and the outer side of the ball core 4 are squeezed more tightly, thereby compensating for the gap caused by the wear of the second sealing ring 145, increasing the sealing degree of the second sealing ring 145, and extending the service life of the entire ball valve.

[0036] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but rather is intended to conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A threaded ball valve, characterized in that: include: A ball valve housing (3), wherein an inlet mechanism (1) is provided at the left end of the ball valve housing (3), wherein the inlet mechanism (1) is composed of a first inlet section (16), a second inlet section (15) and an inner tube (2), wherein a circular ring opening (10) is provided between the first inlet section (16) and the second inlet section (15), wherein the outer sides of the first inlet section (16) and the second inlet section (15) are fixedly connected via a plurality of connecting frames (9), and the right end of the second inlet section (15) is fixedly connected to the left end of the ball valve housing (3); The interior of the first inlet section (16) is threadedly connected to the inner tube (2); A limiting ring opening (13) is provided between the outer right portion of the inner tube (2) and the inner right portion of the second inlet section (15), and a sealing ring mechanism (14) is movably inserted inside the limiting ring opening (13); A plurality of push rods (12) are movably inserted in a ring array between the circular ring opening (10) and the limiting ring opening (13) inside the inner tube (2), the right end of the push rod (12) squeezes the left end of the sealing ring mechanism (14), and the left end is located inside the circular ring opening (10); A manually adjustable swivel (8) is inserted into the interior of the circular opening (10), and the right side of the manually adjustable swivel (8) is threadedly sleeved on the outside of the second inlet section (15); A ball core (4) is movably provided inside the ball valve housing (3), and the outer side of the left end of the ball core (4) is pressed and fitted with the right end of the sealing ring mechanism (14).

2. A threaded ball valve according to claim 1, characterized in that: The sealing ring mechanism (14) is composed of a first hard ring plate (141), a connecting ring (142), a first sealing ring (143), a second hard ring plate (144) and a second sealing ring (145); the right end of the first hard ring plate (141) is fixedly connected to the connecting ring (142); the right end of the connecting ring (142) is fixedly connected to the second hard ring plate (144); the first sealing ring (143) is fixedly connected to the inner and outer sides of the connecting ring (142); and the right end of the second hard ring plate (144) is fixedly connected to the second sealing ring (145).

3. A threaded ball valve according to claim 2, characterized in that: The right side of the second sealing ring (145) is in an arc shape.

4. A threaded ball valve according to claim 1, characterized in that: Two third sealing rings (11) are fixedly embedded in the right outer portion of the inner tube (2), and the push rod (12) is movably inserted into the middle portion of the third sealing ring (11).

5. A threaded ball valve according to claim 1, characterized in that: The left and right sides of the inner wall of the ball valve housing (3) are fixedly connected with a stabilizing ring (5), and the inner side of the stabilizing ring (5) is evenly and rotatably inlaid with a plurality of balls (6), and the balls (6) are in sliding contact with the outer side of the ball core (4).

6. A threaded ball valve according to claim 1, characterized in that: The lower end of the ball core (4) is fixedly connected to a rotating shaft, and the rotating shaft is inserted into the lower side of the ball valve housing (3) via a bearing. The upper end of the ball core (4) is inserted into a transmission shaft (7), and the transmission shaft (7) is sealed and inserted into the middle of the upper side of the ball valve housing (3).

7. A threaded ball valve according to claim 1, characterized in that: The right end of the ball valve housing (3) is fixedly connected to an outlet pipe (18).

8. A threaded ball valve according to claim 1, characterized in that: A plurality of protrusions (17) are fixedly connected at equal intervals to the outer side of the manually adjustable rotating ring (8).

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