A sealing ball valve with self-locking function

Abstract

The utility model discloses a sealed ball valve with self -locking function relates to the field of ball valve. The sealed ball valve with self -locking function, including ball valve unit, the ball valve unit includes valve body main part, fixed base, valve core and valve rod, be provided with locking unit on the fixed base, the locking unit includes casing, moving block, extrusion block and locking spring. The sealed ball valve with self -locking function, when rotating handle, the valve rod drives the valve core to rotate in the valve body main part, and the locking spring pushes the extrusion block to slide in the moving block, makes extrusion block top and extrusion groove in the top wall close abut, and the moving block is restricted to move through friction, and the moving block is fixedly connected with the handle through the casing, thereby the rotation angle of locking handle. Through the mechanical engagement of extrusion block and extrusion groove and the elastic compensation of locking spring, avoid the self -locking failure caused by abrasion.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically a sealing ball valve with a self-locking function. Background Technology

[0002] As a core component in fluid control, the ball valve's self-locking function and sealing performance directly impact the safety and efficiency of industrial systems. However, existing technologies suffer from the following key issues:

[0003] Mechanical locking defects: Traditional self-locking ball valves (such as CN 101709790A) achieve locking by cooperating with positioning pins and positioning holes, but the holes need to be manually aligned, which is inefficient and the positioning pins are prone to wear after long-term use, resulting in self-locking failure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sealing ball valve with a self-locking function, which solves the problems of traditional self-locking ball valves that achieve locking by cooperating with positioning pins and positioning holes, but require manual alignment of the holes, resulting in low operating efficiency, and the positioning pins being prone to wear after long-term use, leading to self-locking failure.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a sealing ball valve with a self-locking function, comprising a ball valve unit, wherein the ball valve unit comprises a valve body, a fixed seat, a valve core and a valve stem, the fixed seat is fixedly disposed on the top of the valve body, the valve core is rotatably disposed inside the valve body, the valve stem is fixedly installed on the top of the valve core and rotatably connected to the valve body, and a handle is installed on the top of the valve stem;

[0006] The fixed base is provided with a locking unit, which includes a housing, a moving block, a pressing block, and a locking spring. The housing is fixedly connected between the moving block and the handle. The moving block is slidably disposed on the fixed base. The pressing block is slidably disposed inside the moving block. The locking spring is fixedly connected between the bottom of the pressing block and the inner wall of the moving block. The top of the pressing block is tightly abutted against the fixed base. A pull rope is fixedly connected to the bottom end of the pressing block, and the pull rope is movably inserted into the housing.

[0007] Preferably, the outer side of the fixed base is provided with a pressing groove, the top end of the moving block extends into the pressing groove, and the top end of the pressing block abuts tightly against the inner top wall of the pressing groove.

[0008] Preferably, the handle has a through adjustment groove, the inner wall of the adjustment groove is slidably connected to an adjustment block, and the end of the pull rope extends outward through the housing and is fixedly connected to the adjustment block.

[0009] Preferably, a movable groove is provided on the outer side of the fixed base, and a movable block is slidably disposed on the inner wall of the movable groove, and the two sides of the movable block are respectively fixedly connected to the housing and the movable block.

[0010] Preferably, the top of the extrusion block is a rubber block.

[0011] Preferably, a valve seat is fixedly connected to the inner wall of the valve body, and the outer side of the valve core is in contact with the valve seat.

[0012] Its beneficial effects are as follows:

[0013] This self-locking sealing ball valve, when the handle is rotated, causes the valve stem to rotate the valve core within the valve body. A locking spring pushes the compression block to slide within the moving block, ensuring the top of the compression block is tightly against the top wall of the compression groove. Friction restricts the movement of the moving block, which is fixedly connected to the handle via the housing, thus locking the handle's rotation angle. The mechanical engagement between the compression block and the compression groove, along with the elastic compensation of the locking spring, prevents self-locking failure due to wear. Pulling the adjusting block along the adjusting groove causes the compression block to compress the locking spring downwards via a pull rope, separating the compression block from the compression groove and releasing the handle's lock. At this point, the handle can be rotated to adjust the valve core opening. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

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

[0016] Figure 2 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged diagram of part A in the image.

[0018] In the diagram: 1. Ball valve unit; 11. Valve body; 12. Fixing seat; 121. Extrusion groove; 13. Valve core; 14. Valve stem; 15. Handle; 151. Adjustment groove; 2. Locking unit; 21. Housing; 22. Pull rope; 23. Adjustment block; 24. Moving groove; 25. Moving block; 26. Extrusion block; 27. Locking spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] This utility model discloses a sealing ball valve with a self-locking function, according to the appendix. Figure 1-3 As shown, the device includes a ball valve unit 1, which includes a valve body 11, a fixed seat 12, a valve core 13, and a valve stem 14. The fixed seat 12 is fixedly disposed on the top of the valve body 11, the valve core 13 is rotatably disposed inside the valve body 11, a valve seat is fixedly connected to the inner wall of the valve body 11, and the outer side of the valve core 13 is in contact with the valve seat. The valve stem 14 is fixedly installed on the top of the valve core 13 and rotatably connected to the valve body 11, and a handle 15 is installed on the top of the valve stem 14.

[0022] A locking unit 2 is provided on the fixed base 12. The locking unit 2 includes a housing 21, a moving block 25, a pressing block 26 and a locking spring 27. The housing 21 is fixedly connected between the moving block 25 and the handle 15. The moving block 25 is slidably disposed on the fixed base 12. The pressing block 26 is slidably disposed inside the moving block 25. The locking spring 27 is fixedly connected between the bottom of the pressing block 26 and the inner wall of the moving block 25. The top of the pressing block 26 is tightly abutted against the fixed base 12. A pull rope 22 is fixedly connected to the bottom end of the pressing block 26 and is movably inserted into the housing 21.

[0023] When the handle 15 is rotated, the valve stem 14 drives the valve core 13 to rotate within the valve body 11. The locking spring 27 pushes the pressing block 26 to slide within the moving block 25, causing the top of the pressing block 26 to abut tightly against the inner top wall of the pressing groove 121. Friction restricts the movement of the moving block 25. The moving block 25 is fixedly connected to the handle 15 via the housing 21, thereby locking the rotation angle of the handle 15. Through the mechanical engagement between the pressing block 26 and the pressing groove 121 and the elastic compensation of the locking spring 27, self-locking failure due to wear is avoided. Pulling the adjusting block 23 to slide along the adjusting groove 151, the pulling rope 22 pulls the pressing block 26 downward to compress the locking spring 27, separating the pressing block 26 from the pressing groove 121 and releasing the lock on the handle 15. At this time, the handle 15 can be rotated to adjust the opening of the valve core 13.

[0024] According to the appendix Figure 3As shown, a pressing groove 121 is provided on the outer side of the fixed base 12, the top of the moving block 25 extends into the pressing groove 121, and the top of the pressing block 26 is in close contact with the inner top wall of the pressing groove 121.

[0025] According to the appendix Figure 1-2 As shown, the handle 15 has a through adjustment groove 151, the inner wall of the adjustment groove 151 is slidably connected to the adjustment block 23, and the end of the pull rope 22 extends outward through the housing 21 and is fixedly connected to the adjustment block 23.

[0026] According to the appendix Figure 3 As shown, a movable groove 24 is provided on the outer side of the fixed base 12, and a movable block is slidably disposed on the inner wall of the movable groove 24. The two sides of the movable block are fixedly connected to the housing 21 and the movable block 25, respectively. The top of the compression block 26 is a rubber block.

[0027] When the handle 15 is rotated, the valve stem 14 drives the valve core 13 to rotate within the valve body 11. The locking spring 27 pushes the pressing block 26 to slide within the moving block 25, causing the top of the pressing block 26 to abut tightly against the inner top wall of the pressing groove 121. Friction restricts the movement of the moving block 25. The moving block 25 is fixedly connected to the handle 15 via the housing 21, thereby locking the rotation angle of the handle 15. Through the mechanical engagement between the pressing block 26 and the pressing groove 121 and the elastic compensation of the locking spring 27, self-locking failure due to wear is avoided. Pulling the adjusting block 23 to slide along the adjusting groove 151, the pulling rope 22 pulls the pressing block 26 downward to compress the locking spring 27, separating the pressing block 26 from the pressing groove 121 and releasing the lock on the handle 15. At this time, the handle 15 can be rotated to adjust the opening of the valve core 13.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking sealing ball valve, comprising a ball valve unit (1), characterized in that, The ball valve unit (1) includes a valve body (11), a fixed seat (12), a valve core (13), and a valve stem (14). The fixed seat (12) is fixedly disposed on the top of the valve body (11). The valve core (13) is rotatably disposed inside the valve body (11). The valve stem (14) is fixedly installed on the top of the valve core (13) and rotatably connected to the valve body (11). A handle (15) is installed on the top of the valve stem (14). A locking unit (2) is provided on the fixed base (12). The locking unit (2) includes a housing (21), a moving block (25), a pressing block (26), and a locking spring (27). The housing (21) is fixedly connected between the moving block (25) and the handle (15). The moving block (25) is slidably disposed on the fixed base (12). The pressing block (26) is slidably disposed inside the moving block (25). The locking spring (27) is fixedly connected between the bottom of the pressing block (26) and the inner wall of the moving block (25). The top of the pressing block (26) is tightly abutted against the fixed base (12). A pull rope (22) is fixedly connected to the bottom end of the pressing block (26), and the pull rope (22) is movably inserted into the housing (21).

2. A self-locking sealing ball valve according to claim 1, characterized in that, The outer side of the fixed base (12) is provided with an extrusion groove (121), the top of the moving block (25) extends into the extrusion groove (121), and the top of the extrusion block (26) is in close contact with the inner top wall of the extrusion groove (121).

3. A self-locking sealing ball valve according to claim 1, characterized in that, The handle (15) has a through adjustment groove (151), and the inner wall of the adjustment groove (151) is slidably connected to an adjustment block (23). The end of the pull rope (22) extends outward through the housing (21) and is fixedly connected to the adjustment block (23).

4. A self-locking sealing ball valve according to claim 1, characterized in that, The fixed base (12) has a movable groove (24) on its outer side. A movable block is slidably arranged on the inner wall of the movable groove (24), and the two sides of the movable block are fixedly connected to the housing (21) and the movable block (25) respectively.

5. A self-locking sealing ball valve according to claim 1, characterized in that, The top of the extrusion block (26) is set as a rubber block.

6. A self-locking sealing ball valve according to claim 1, characterized in that, A valve seat is fixedly connected to the inner wall of the valve body (11), and the outer side of the valve core (13) is in contact with the valve seat.

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