Top-mounted ball valve

Abstract

The utility model discloses a top-mounted ball valve, which relates to the technical field of valves and comprises a valve body, a valve cavity is arranged at the inner bottom end of the valve body, a ball body is arranged inside the valve cavity, a through hole is arranged on the outer side of the circumference of the ball body, a rotating shaft is arranged at the top end of the ball body, and a rotating rod is arranged at the top end of the rotating shaft. A fixing base is arranged at the top end of the valve body and matched with the rotating rod through a fixing assembly, and a sealing assembly matched with the rotating shaft is arranged at the inner top end of the valve body. Through the arrangement of the sealing assembly, medium leakage can be effectively prevented, and safe operation of a pipeline system is ensured; meanwhile, the sealing assembly is matched with the bolt, so that the sealing ring is more convenient to disassemble and replace, the maintenance process is simplified, it is ensured that the ball valve device is always kept in the optimal working state, and therefore production loss caused by shutdown maintenance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a top-mounted ball valve. Background Technology

[0002] Ball valves, as a crucial fluid control device, are widely used in various industrial sectors such as petroleum, natural gas, chemical, power, and metallurgy. They achieve precise control of liquid or gas flow through a spherical disc with a central orifice. Among these, top-entry ball valves are particularly favored due to their unique design, becoming the preferred solution in many applications. The main advantages of this type of valve lie in its compact structure, ease of operation, and convenient maintenance. It is especially suitable for applications requiring rapid disassembly and maintenance, significantly reducing downtime and improving production efficiency.

[0003] However, despite the numerous design advantages of top-entry ball valves, the sealing ring, a critical component, gradually wears down during long-term use. This not only reduces the valve's lifespan but also directly leads to a decline in sealing performance. As sealing performance weakens, the risk of external leakage increases, posing a potential threat to environmental safety and potentially causing economic losses to businesses. Furthermore, frequent maintenance requirements increase operating costs and impact production continuity and efficiency.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a top-mounted ball valve to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A top-mounted ball valve includes a valve body, a valve cavity at the bottom inner end of the valve body, a ball inside the valve cavity, a through hole on the outer circumference of the ball, a rotating shaft at the top end of the ball, and a rotating rod at the top end of the rotating shaft; a fixed seat at the top end of the valve body, and the fixed seat and the rotating rod are engaged by a fixing assembly; and a sealing assembly that engages with the rotating shaft is provided at the top inner end of the valve body.

[0008] Furthermore, to make the disassembly and replacement of the sealing ring easier and simplify the maintenance process, the valve body and the mounting seat are fixed together by several bolts.

[0009] Further, in order to effectively prevent the unexpected angle deviation caused by accidental collision or vibration, ensure the stability of the flow, the fixing assembly comprises a fixing rod arranged at the bottom end of the rotating rod, a fixing groove is arranged at the inner bottom end of the fixing rod, a spring is arranged at the inner top end of the fixing groove, a moving disc is arranged at the bottom end of the spring, a plug rod is arranged at the bottom end of the moving disc, and a rotating rod is arranged at the circumferential outer side of the moving disc; a sliding groove matched with the rotating rod is arranged at one side of the fixing rod, and a plurality of fixing plates are arranged at the top end of the fixing base.

[0010] Further, in order to effectively prevent the unexpected angle deviation caused by accidental collision or vibration, ensure the stability of the flow, the fixing assembly comprises a fixing rod arranged at the bottom end of the rotating rod, a fixing groove is arranged at the inner bottom end of the fixing rod, a spring is arranged at the inner top end of the fixing groove, a moving disc is arranged at the bottom end of the spring, a plug rod is arranged at the bottom end of the moving disc, and a rotating rod is arranged at the circumferential outer side of the moving disc; a sliding groove matched with the rotating rod is arranged at one side of the fixing rod, and a plurality of fixing plates are arranged at the top end of the fixing base.

[0011] The beneficial effects of the present application are as follows:

[0012] 1. The sealing assembly can effectively prevent medium leakage and ensure the safe operation of the pipeline system.

[0013] 2. The fixing assembly can ensure that the ball remains stable at the set angle position, thereby accurately controlling the medium flow, effectively preventing unexpected angle deviation caused by accidental collision or vibration, ensuring the stability of the flow, and ensuring the safe operation of the system. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a structure schematic view of an upper-mounted ball valve according to an embodiment of the present application;

[0016] Figure 2 is one of the cross-sectional views of the upper-mounted ball valve according to an embodiment of the present application;

[0017] Figure 3is a sectional view two of the upper-mounted ball valve according to the embodiment of the utility model;

[0018] Figure 4 is Figure 3 is the local enlarged view of A in the middle;

[0019] Figure 5 is the structure schematic view of the sealing ring in the upper-mounted ball valve according to the embodiment of the utility model.

[0020] In the figure,

[0021] 1, valve body;2, valve cavity;3, ball;4, through hole;5, rotating shaft;6, rotating rod;7, fixed seat;8, fixed assembly;801, fixed rod;802, fixed groove;803, spring;804, moving disc;805, plug rod;806, push rod;807, sliding groove;808, fixed plate;809, plug hole;9, sealing assembly;901, recess;902, sealing ring;9021, connecting port;9022, connecting rod;9023, connecting groove;9024, limiting rod;9025, sealing strip;9026, annular sealing groove;10, bolt. DETAILED DESCRIPTION

[0022] To further illustrate the embodiments, the utility model provides with the drawing, these drawings are the part of the utility model disclosure, it mainly uses to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operating principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the figure are not drawn according to the proportion, and similar component symbols are usually used to indicate similar components.

[0023] According to the embodiment of the utility model, a kind of upper-mounted ball valve is provided.

[0024] The utility model is further illustrated by combining with the specific embodiment and the drawing, as shown in Figures 1-5 According to the upper-mounted ball valve of the embodiment of the utility model, it includes valve body 1, the inner bottom end of valve body 1 is equipped with valve cavity 2, the inside of valve cavity 2 is provided with ball 3, the circumferential outside of ball 3 is equipped with through hole 4, the top of ball 3 is provided with rotating shaft 5, and the top of rotating shaft 5 is provided with rotating rod 6;The top of valve body 1 is provided with fixed seat 7, and fixed seat 7 is matched with rotating rod 6 by fixed assembly 8, and the inner top of valve body 1 is provided with sealing assembly 9 matched with rotating shaft 5.

[0025] By means of the above technical scheme of the utility model, the sealing assembly 9 is arranged, which can effectively prevent medium leakage and ensure safe operation of the pipeline system. The fixing assembly 8 is arranged, which can ensure that the ball 3 is kept stable at a set angle position, so that the medium flow is accurately controlled, unintended angle deviation caused by accidental collision or vibration is effectively prevented, the stability of the flow is ensured, and safe operation of the system is guaranteed.

[0026] In an embodiment, for the valve body 1, the valve body 1 is fixed with the fixing base 7 through the bolts 10, so that the sealing ring 902 is more convenient to disassemble and replace, and the maintenance process is simplified.

[0027] In an embodiment, for the fixing assembly 8, the fixing assembly 8 comprises the fixing rod 801 arranged at the bottom end of the rotating rod 6, the inner bottom end of the fixing rod 801 is provided with the fixing groove 802, the inner top end of the fixing groove 802 is provided with the spring 803, the bottom end of the spring 803 is provided with the moving disc 804, the bottom end of the moving disc 804 is provided with the inserting rod 805, the circumferential outer side of the moving disc 804 is provided with the pushing rod 806, one side of the fixing rod 801 is provided with the sliding groove 807 matched with the pushing rod 806, and the fixing assembly 8 further comprises the fixing plates 808 arranged at the top end of the fixing base 7, the top end of the fixing plate 808 is provided with the insertion hole 809 matched with the inserting rod 805, so that unintended angle deviation caused by accidental collision or vibration is effectively prevented, and the stability of the flow is ensured.

[0028] The working principle of the fixing assembly 8 is as follows: when the medium flow needs to be adjusted, the operator first moves the pushing rod 806 upward, so that the moving disc 804 compresses the spring 803, with the rising of the moving disc 804, the inserting rod 805 is driven to move upward, so that the inserting rod 805 is separated from the insertion hole 809, and the rotating rod 6 is unlocked; at this time, the operator can freely rotate the rotating rod 6, and the ball 3 connected at the bottom end of the rotating rod 6 is used to accurately control the medium flow; after being adjusted to a specific angle required by the preset flow, the fixing rod 801 is aligned with the corresponding position on the fixing plate 808, at this time, the operator releases the pushing rod 806, the moving disc 804 moves downward under the restoring force of the spring 803, the inserting rod 805 is pushed to reinsert into the insertion hole 809, and the rotating rod 6 is firmly locked on the fixing base 7, so that the angle deviation caused by accidental collision is prevented, and the stability of the medium flow is maintained.

[0029] In one embodiment, for the sealing assembly 9 described above, the sealing assembly 9 comprises a groove 901 opened at the top end of the valve body 1, the inside of the groove 901 is provided with a sealing ring 902, the top of the sealing ring 902 is provided with a connecting port 9021, one side of the connecting port 9021 is provided with a connecting rod 9022, the other side of the connecting port 9021 is provided with a connecting groove 9023, and the connecting groove 9023 is fixed with the connecting rod 9022 through a limiting rod 9024, the other side of the connecting port 9021 is provided with a sealing strip 9025, and the circumferential inner side of the sealing ring 902 is provided with a plurality of annular sealing grooves 9026, so that the medium leakage can be effectively prevented, and the safe operation of the pipeline system can be ensured.

[0030] The working principle of the sealing assembly 9 is as follows: first, the fixed seat 7 is separated from the valve body 1 by loosening the bolt 10; then, the sealing ring 902 is placed in the groove 901, the connecting rod 9022 is inserted into the inside of the connecting groove 9023, and the limiting rod 9024 is used for limiting and fixing; after the installation of the sealing ring 902 is completed, the bolt 10 is tightened again, and the fixed seat 7 is firmly fixed back on the valve body 1, at this time, the sealing ring 902 is tightly connected with the valve body 1 and the rotating shaft 5, not only the sealing performance of the ball valve device is significantly improved, but also the replacement process of the sealing ring 902 is simplified, and the service life of the ball valve device is prolonged.

[0031] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail.

[0032] In actual application, when the ball valve device is installed between two pipes, the medium (liquid or gas) in the pipe flows through the through hole 4 in the center of the ball 3; when the medium flow needs to be adjusted, the operator can rotate the ball 3 at the bottom end of the rotating shaft 5 by rotating the rotating rod 6, the through hole 4 on the ball 3 cooperates with the inner wall of the valve cavity 2, so as to realize accurate control of the medium flow; when the specific angle required for adjustment to the preset flow is reached, the rotating rod 6 is locked on the fixed seat 7 by using the fixed assembly 8 (the working principle of the fixed assembly 8 is as described above), so as to ensure that the angle is not deviated due to accidental collision, and the stable medium flow is maintained. In addition, the sealing assembly 9 is located between the valve body 1 and the rotating shaft 5, plays a sealing role, effectively prevents the medium from leaking, and ensures the safe operation of the pipeline system (the working principle of the sealing assembly 9 is as described above).

[0033] In summary, by means of the technical scheme of the utility model, the sealing assembly 9 is arranged, which can effectively prevent medium leakage and ensure safe operation of the pipeline system; meanwhile, the sealing assembly 9 cooperates with the bolt 10, so that the sealing ring 902 is more convenient to disassemble and replace, the maintenance process is simplified, the ball valve device is always kept in the best working condition, thereby reducing production loss caused by shutdown maintenance. The fixing assembly 8 is arranged, which can ensure that the ball 3 is kept stable at the set angle position, so that the medium flow is accurately controlled, unexpected angle deviation caused by accidental collision or vibration is effectively prevented, the stability of the flow is ensured, and safe operation of the system is ensured.

[0034] In the utility model, unless another definite provision and limitation, the terms "mount", "arrange", "connect", "fix", "screw" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0035] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A top-mounted ball valve, comprising a valve body (1), characterized in that, The valve body (1) has a valve cavity (2) at its inner bottom end. A ball (3) is provided inside the valve cavity (2). A through hole (4) is provided on the outer circumference of the ball (3). A rotating shaft (5) is provided at the top of the ball (3). A rotating rod (6) is provided at the top of the rotating shaft (5). The valve body (1) is provided with a fixed seat (7) at its top end, and the fixed seat (7) cooperates with the rotating rod (6) through a fixing component (8). The valve body (1) is provided with a sealing component (9) that cooperates with the rotating shaft (5) at its inner top end.

2. The top-mounted ball valve according to claim 1, characterized in that, The valve body (1) is fixed to the fixed seat (7) by a number of bolts (10).

3. The top-mounted ball valve according to claim 1, characterized in that, The fixing component (8) includes a fixing rod (801) disposed at the bottom end of the rotating rod (6). The fixing rod (801) has a fixing groove (802) at its inner bottom end. A spring (803) is disposed at the inner top end of the fixing groove (802). A movable disk (804) is disposed at the bottom end of the spring (803). A plug rod (805) is disposed at the bottom end of the movable disk (804). A toggle rod (806) is disposed on the outer circumference of the movable disk (804). The fixed rod (801) has a groove (807) on one side that cooperates with the actuating rod (806).

4. A top-mounted ball valve according to claim 3, characterized in that, The fixing component (8) also includes a plurality of fixing plates (808) disposed at the top of the fixing base (7), and the top of the fixing plate (808) is provided with a socket (809) that cooperates with the plug (805).

5. A top-mounted ball valve according to claim 1, characterized in that, The sealing assembly (9) includes a groove (901) formed at the top of the valve body (1), and a sealing ring (902) is provided inside the groove (901).

6. A top-mounted ball valve according to claim 5, characterized in that, The sealing ring (902) has a connection port (9021) at the top, a connecting rod (9022) is provided on one side of the connection port (9021), a connecting groove (9023) is provided on the other side of the connection port (9021), and the connecting groove (9023) and the connecting rod (9022) are fixed together by a limiting rod (9024). A sealing strip (9025) is provided on the other side of the connection port (9021).

7. A top-mounted ball valve according to claim 6, characterized in that, The sealing ring (902) has several annular sealing grooves (9026) on its inner circumference.

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