Disassembling and assembling structure and ball valve

Abstract

The disassembly and assembly structure comprises an installation opening formed in the outer wall of one side of a valve body and a sealing cover corresponding to the installation opening, a communicating hole used for containing a valve rod is integrally formed in the middle of the sealing cover, and through grooves are formed in the two sides of the upper surface of the sealing cover in a downward penetrating mode. Limiting screw holes are formed in the outer walls of the two sides of the valve body in a communicating mode, limiting holes corresponding to the limiting screw holes are formed in the surfaces of the two sides of the sealing cover, N-shaped sealing limiting pieces are inserted into the through grooves in the two sides, and connecting holes corresponding to the limiting screw holes are formed in the surfaces of the two sides of the N-shaped sealing limiting pieces. Fastening bolts are installed in each set of corresponding limiting screw holes, through grooves and connecting holes, through the design of the detachable sealing covers and the N-shaped sealing limiting pieces, when the interior of the ball valve is cleaned and maintained, the whole ball valve does not need to be detached from a pipeline system, and therefore the whole ball valve is convenient to clean and maintain. The sealing cover and the N-shaped sealing limiting piece can be disassembled only through simple steps, and the disassembling and assembling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of ball valves, in particular to a disassembly and assembly structure and a ball valve. Background Art

[0002] In existing valve technology, ball valves are a common fluid control device, widely used in various industrial piping systems. However, traditional ball valve designs often present difficulties in assembly and disassembly. Specifically, many ball valves utilize an integral screw sleeve on one end and a removable screw sleeve on the other. While this design allows for a certain degree of disassembly, it introduces significant operational inconvenience.

[0003] When cleaning and maintaining the interior of a ball valve is necessary, workers typically need to first remove the entire ball valve from the piping system and then, through a complex process, remove the threaded sleeve of the removable portion to complete the cleaning and maintenance work. This process is not only time-consuming and labor-intensive, but can also easily damage the valve's sealing components during disassembly and installation, causing valve leakage and affecting the normal operation of the system.

[0004] How to invent a disassembly and assembly structure and a ball valve to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a disassembly and assembly structure and a ball valve, aiming to improve the problem that the disassembly and assembly process of the existing ball valve is not only time-consuming and labor-intensive, but also easily damages the sealing components of the valve during the disassembly and installation process, causing valve leakage and affecting the normal operation of the system.

[0006] In the first aspect, the utility model provides a disassembly and assembly structure, including an installation port provided on the outer wall of one side of the valve body and a sealing cover corresponding to the installation port, a connecting hole for accommodating the valve stem is integrally provided in the middle of the sealing cover, through grooves are provided on both sides of the upper surface of the sealing cover extending downward, limiting screw holes are provided on the outer walls of both sides of the valve body, and limiting holes corresponding to the limiting screw holes are also provided on both side surfaces of the sealing cover, N-type sealing limiting parts are inserted in the through grooves on both sides, and connecting holes corresponding to the limiting screw holes are also provided on both side surfaces of the N-type sealing limiting parts, and fastening bolts are installed in each group of corresponding limiting screw holes, through grooves and connecting holes.

[0007] In a preferred technical solution of the present invention, each of the limiting holes includes two parts respectively arranged on the inner walls on both sides of the corresponding through slot, namely a through hole opened on the outer inner wall of the through slot and a blind hole opened on the inner wall of the through slot.

[0008] In a preferred technical solution of the present invention, a stepped structure for overlapping the two ends of the sealing cover is provided at the connection between the two sides of the installation port and the inner wall of the valve body. The upper surface of each stepped structure is recessed into the interior of the valve body and a slot is provided, and both ends of the N-type sealing limiter extend into the slot.

[0009] In a preferred technical solution of the present invention, sealing gaskets are provided on the inner walls around the slot.

[0010] In a preferred technical solution of the present invention, a through hole for extending the valve stem is also provided on the upper surface of the N-type sealing limiter, a sealing ring is coaxially arranged at the through hole position on the top inner wall of the N-type sealing limiter, and a receiving groove is provided at the top of the communicating hole, and the sealing ring is located in the receiving groove.

[0011] In a preferred technical solution of the present invention, sealing rings are further provided on both sides of the spherical valve core inside the valve body, and the two sealing rings are respectively located at the joint gaps between the two ends of the cover and the installation port.

[0012] In a second aspect, the present invention further provides a ball valve, comprising the above-mentioned disassembly and assembly structure.

[0013] The beneficial effects of the present invention are as follows: the disassembly and assembly structure and ball valve obtained by the above-mentioned design of the present invention, when in use, the ball valve structure of the present invention adopts a detachable cover and N-type sealing stopper design, so that when workers need to clean and maintain the interior of the ball valve, they do not need to remove the entire ball valve from the pipeline system. They can simply remove the cover and N-type sealing stopper in simple steps, thereby easily completing the cleaning and maintenance work of the interior of the ball valve. This design greatly simplifies the disassembly and assembly process and improves disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic three-dimensional diagram of the overall structure provided by an embodiment of the present utility model;

[0016] Figure 2 A schematic three-dimensional diagram of the overall cross-sectional structure provided for an embodiment of the present utility model;

[0017] Figure 3 A schematic three-dimensional diagram of the overall cross-sectional structure of the other side provided by an embodiment of the utility model;

[0018] Figure 4 A schematic perspective view of the overall separation structure provided by an embodiment of the present utility model;

[0019] Figure 5 A schematic three-dimensional diagram of the valve body and mounting port position structure provided in an embodiment of the present utility model;

[0020] Figure 6 A schematic three-dimensional diagram of the overall structure of the cover provided in an embodiment of the present utility model;

[0021] Figure 7 This is a schematic three-dimensional diagram of the overall structure of the N-type sealing limiter provided in an embodiment of the present utility model.

[0022] In the figure: 1-installation port; 2-sealing cover; 3-N-type sealing limiter; 4-fastening bolt; 101-slot; 102-limiting screw hole; 201-connecting hole; 202-through slot; 203-limiting hole; 204-accommodating slot; 301-connecting hole; 302-sealing ring. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 7 The utility model provides a technical solution: a disassembly and assembly structure, including a mounting port 1 provided on the outer wall of one side of the valve body and a sealing cover 2 corresponding to the mounting port 1, a connecting hole 201 for accommodating the valve stem is integrally provided in the middle of the sealing cover 2, through grooves 202 are provided on both sides of the upper surface of the sealing cover 2 downwardly, and limiting screw holes 102 are provided on the outer walls of both sides of the valve body, and limiting holes 203 corresponding to the limiting screw holes 102 are also provided on both side surfaces of the sealing cover 2, N-type sealing limiters 3 are inserted in the through grooves 202 on both sides, and connecting holes 301 corresponding to the limiting screw holes 102 are also provided on both side surfaces of the N-type sealing limiter 3, and fastening bolts 4 are installed in each group of corresponding limiting screw holes 102, through grooves 202 and connecting holes 301.

[0025] See also Figure 6 Each limiting hole 203 includes two parts respectively arranged on the inner walls on both sides of the corresponding through groove 202, namely a through hole opened on the outer inner wall of the through groove 202 and a blind hole opened on the inner wall of the through groove 202.

[0026] When both ends of the N-type sealing limiter 3 are inserted into the through groove 202, each fastening bolt 4 passes through the corresponding limiting screw hole 102, the through hole part of the limiting hole 203 and the connecting hole 301 in sequence, and finally one end thereof is inserted into the blind hole part of the limiting hole 203, so as to firmly connect and limit the sealing cover 2 and the N-type sealing limiter 3 with the valve body to ensure the firmness of the overall connection.

[0027] See also Figure 3 and Figure 5 A stepped structure for overlapping the two ends of the sealing cover 2 is provided at the connection between the two sides of the installation port 1 and the inner wall of the valve body. The upper surface of each stepped structure is recessed into the interior of the valve body to form a slot 101, and both ends of the N-type sealing limiter 3 extend into the slot 101.

[0028] The stepped structure design provides additional fixing and sealing surfaces, ensuring the stability of the cover 2 installation. At the same time, both ends of the N-type sealing limiter 3 are inserted into the slots 101 on the corresponding side, which also improves the sealing of the overall connection.

[0029] Furthermore, sealing gaskets are provided on the inner walls around the slot 101 .

[0030] Sealing gaskets are added to the inner walls around the slot 101 to further improve the sealing performance of the slot 101 and prevent the medium from leaking from the gap.

[0031] See also Figure 6 and Figure 7 A through hole for extending the valve stem is also provided on the upper surface of the N-type sealing limiter 3. A sealing ring 302 is coaxially arranged at the through hole position on the top inner wall of the N-type sealing limiter 3. A receiving groove 204 is provided at the top of the communicating hole 201, and the sealing ring 302 is located in the receiving groove 204.

[0032] The through holes opened on the surface of the N-type sealing limiter 3 can also limit the valve stem, increase the force points of the valve stem to prevent the valve stem from bending and deforming under force, affecting its use and disassembly. At the same time, the sealing performance of the valve stem is also enhanced through the cooperation of the sealing ring 302 and the accommodating groove 204.

[0033] See 2 and Figure 4 , sealing rings are also provided on both sides of the spherical valve core inside the valve body, and the two sealing rings are respectively located at the joint gaps between the two ends of the cover 2 and the installation port 1.

[0034] Each sealing ring side wall covers the joint between the end of the cover 2 and the end of the installation port 1 to cooperate with the N-type sealing limiter 3 to achieve sealing at the connection and ensure the stability of the ball valve during overall use.

[0035] Working principle: First, place the sealing ring into the valve body through the installation port 1, then place the spherical valve core between the two sealing rings, insert the end of the valve stem with the limit block into the limit groove opened on the surface of the spherical valve core, and put the cover 2 on the valve stem through the connecting hole 201, and make the two ends of the cover 2 overlap at the step structure connection between the installation port 1 and the inner wall of the valve body, insert the two ends of the N-type sealing limiter 3 into the corresponding through groove 202 at the same time, and press the N-type sealing limiter 3 downward until the two ends of the N-type sealing limiter 3 abut against the bottom inner wall of the slot 101. At this time, the top of the valve stem is positioned on the surface of the N-type sealing limiter 3. The through hole extends to the top of the N-type sealing limiter 3, and the handle is connected to the top of the valve stem through a fastener. Finally, the fastening bolt 4 is inserted into the corresponding limiting screw hole 102, so that it passes through the corresponding limiting screw hole 102, the through hole part of the limiting hole 203 and the final end of the connecting hole 301 in turn and is inserted into the blind hole part of the limiting hole 203 to realize the connection between the valve body, the cover 2 and the N-type sealing limiter 3. When the ball valve needs to be opened for cleaning and maintenance of its inner wall, only the above operation needs to be performed in reverse to complete the overall disassembly of the ball valve without removing the ball valve from the pipeline as a whole, thereby improving the convenience of disassembly and assembly of the ball valve.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A disassembly and assembly structure, characterized in that: It includes a mounting port on the outer wall of one side of the valve body and a sealing cover corresponding to the mounting port, a connecting hole for accommodating the valve stem is integrally provided in the middle of the sealing cover, through grooves are provided on both sides of the upper surface of the sealing cover extending downward, and limiting screw holes are provided on the outer walls of both sides of the valve body, and limiting holes corresponding to the limiting screw holes are also provided on both side surfaces of the sealing cover, N-type sealing limiters are inserted in the through grooves on both sides, and connecting holes corresponding to the limiting screw holes are also provided on both side surfaces of the N-type sealing limiters, and fastening bolts are installed in each group of corresponding limiting screw holes, through grooves and connecting holes.

2. The disassembly and assembly structure according to claim 1, wherein: Each of the limiting holes comprises two parts respectively arranged on the inner walls on both sides of the corresponding through slot, namely a through hole opened on the outer inner wall of the through slot and a blind hole opened on the inner wall of the through slot.

3. The disassembly and assembly structure according to claim 1, wherein: A stepped structure for overlapping the two ends of the cover is provided at the junction of the two sides of the installation port and the inner wall of the valve body. The upper surface of each stepped structure is recessed into the interior of the valve body to form a slot, and both ends of the N-type sealing limiter extend into the slot.

4. The disassembly and assembly structure according to claim 3, wherein: Sealing pads are provided on the inner walls around the slot.

5. The disassembly and assembly structure according to claim 1, wherein: The upper surface of the N-type sealing limiter is also provided with a through hole for extending the valve stem. A sealing ring is coaxially arranged at the through hole position on the top inner wall of the N-type sealing limiter. A receiving groove is provided at the top of the communicating hole, and the sealing ring is located in the receiving groove.

6. The disassembly and assembly structure according to claim 1, wherein: Sealing rings are also provided on both sides of the spherical valve core inside the valve body, and the two sealing rings are respectively located at the joint gaps between the two ends of the cover and the installation port.

7. A ball valve, characterized in that: The invention comprises the disassembly and assembly structure according to any one of claims 1 to 6.

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