A pneumatic ball valve with a valve core convenient to replace

Abstract

The utility model discloses a kind of pneumatic ball valves of valve core is replaced conveniently, including first shell, the inside of first shell and second shell is combined to form valve core groove, first shell, second shell side away from valve core groove are all communicated with communicating pipe. The utility model, when needing to replace valve core, it is convenient to quickly dismount between mounting sleeve and mounting head by the quick dismounting mechanism set, to further facilitate the dismounting of first shell, second shell, after first shell, second shell split, rotate valve core, make transmission groove on valve core and pneumatic actuator form parallel state, can directly remove valve core, make valve core and execution rod separate, when installing valve core, valve core is placed into valve core groove, make transmission key enter the inside of transmission groove, then complete the assembly of first shell, second shell, can complete the replacement of valve core, by the installation structure of the valve core, it is convenient to quickly replace, effectively improve the maintenance efficiency of pneumatic ball valve.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic ball valve technology, specifically a pneumatic ball valve with a convenient valve core replacement. Background Technology

[0002] A pneumatic ball valve is a ball valve equipped with a pneumatic actuator. The pneumatic actuator controls the rotation of the valve core, thereby controlling the opening and closing of the ball valve.

[0003] Current pneumatic ball valves that facilitate valve core replacement, such as the one disclosed in CN218326329U, include: a first housing, in which a valve core is rotatably installed; a pneumatic motor is fixedly installed on the top of the first housing, with the output end of the pneumatic motor penetrating the first housing and inserted into the valve core; a second housing is inserted into the first housing near the valve core; and two horizontal bars on the first housing near the second housing are slidably connected to insert rods away from the first housing. This invention has the following advantages: by pulling the insert rods, the insert plate moves into the corresponding horizontal bar on the first housing, ensuring smooth insertion between the first and second housings. Rotating the pull rod causes the horizontal insert plate to turn into a longitudinal state. At this time, the torsion spring deforms, causing the rotating rod to have a tendency to rotate back, ensuring that the insert rod is pushed out again, allowing the longitudinally positioned insert plate to be inserted into the corresponding slot on the second housing, thus completing the connection and fixation between the first and second housings. This makes the valve body easy to disassemble and assemble, thereby facilitating valve core replacement for operators and greatly improving valve core replacement efficiency.

[0004] Existing pneumatic ball valves with easily replaceable valve cores improve valve body replacement efficiency to some extent through quick disassembly and assembly of housing 1 and housing 2. However, it has been found in use that the valve body is also installed together with the actuator rod of the pneumatic actuator. When replacing the valve body, it is necessary to disassemble and assemble the valve body and actuator rod. Existing pneumatic ball valves are inconvenient to quickly disassemble and assemble the valve body and actuator rod, making them inconvenient to use. Therefore, we propose a pneumatic ball valve with easily replaceable valve cores to solve the problem. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic ball valve with a convenient valve core replacement, in order to solve the problems currently found in the market as described in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic ball valve with a convenient valve core replacement, comprising a first housing, wherein the inner sides of the first housing and the second housing are combined to form a valve core groove, and both the first housing and the second housing are connected to a connecting pipe on the side away from the valve core groove, wherein... The end of the connecting pipe is fixedly connected to a mounting flange, a valve core is provided in the valve core groove, a pneumatic actuator is fixedly installed on the top of the first housing, the actuator rod of the pneumatic actuator passes through the first housing and extends into the interior of the valve core groove, and a transmission groove is opened on the top of the valve core. A transmission key is fixedly connected to the bottom end of the actuator corresponding to the transmission groove. A communication port is passed through the middle of the valve core. An installation sleeve is fixedly connected to the side of the first housing near the second housing. An installation head is fixedly connected to the side of the second housing corresponding to the installation sleeve. The installation sleeve and the installation head are detachably connected by a quick-release mechanism.

[0007] Preferably, the inner width of the middle part of the transmission groove matches the outer width of the transmission key, and the inner width of the openings at both ends of the transmission groove gradually increases from the inside to the outside.

[0008] Preferably, the valve core groove inner walls of the first housing and the second housing are each equipped with a sealing ring, and the outer diameter of the sealing ring is larger than the inner diameter of the communication port, while the outer diameter of the sealing ring is smaller than the outer diameter of the valve core.

[0009] Preferably, the quick-release mechanism includes an L-shaped slot, the inner wall of the mounting sleeve is provided with L-shaped slots at equal intervals, the mounting head is fixedly connected with a locking block on the outer side of the L-shaped slot, the mounting head is provided with a push rod slot at equal intervals on the side facing the first outer shell, the first outer shell is provided with a groove on the side corresponding to the push rod slot, a spring is installed in the push rod slot, and a push rod is installed on the spring corresponding to the opening side of the push rod slot.

[0010] Preferably, the end of the push rod away from the spring is spherical, and the outer diameter of the spherical push rod matches the inner diameter of the groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, when the valve core needs to be replaced, facilitates quick disassembly and assembly between the mounting sleeve and the mounting head through a quick-release mechanism, thereby facilitating the disassembly and assembly of the first and second outer shells. After the first and second outer shells are separated, the valve core is rotated so that the transmission groove on the valve core is parallel to the pneumatic actuator, allowing the valve core to be directly removed and separated from the actuator rod. When installing the valve core, it is placed into the valve core groove, allowing the transmission key to enter the interior of the transmission groove. Afterwards, the first and second outer shells are assembled, completing the replacement of the valve core. This valve core installation structure facilitates quick replacement and effectively improves the maintenance efficiency of pneumatic ball valves.

[0012] In this invention, when the first and second outer shells need to be separated, they are rotated relative to each other, causing the second outer shell to move the locking block out of the L-shaped slot, thus completing the separation of the first and second outer shells. After the valve core is replaced, the second outer shell moves the mounting head into the mounting sleeve, causing the mounting head to move the locking block into the L-shaped slot. At the same time, the push rod is resisted and retracts into the push rod groove, overcoming the spring force. After the locking block is inserted into the L-shaped slot by rotation, the push rod and the groove are aligned. The spring pushes the push rod against the groove, thus pre-fixing the first and second outer shells. After the pneumatic ball valve is fixedly connected to the pipeline through the mounting flange, relative rotation between the first and second outer shells is avoided, thus preventing the connection between the first and second outer shells from becoming loose. This quick disassembly and assembly mechanism allows for rapid disassembly and assembly of the first and second outer shells, facilitating the replacement of the valve core. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the valve core structure of this utility model; Figure 4 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0014] In the diagram: 1. First outer shell; 2. Second outer shell; 3. Valve core groove; 4. Connecting pipe; 5. Mounting flange; 6. Valve core; 7. Pneumatic actuator; 8. Actuating rod; 9. Transmission groove; 10. Transmission key; 11. Connecting port; 12. Mounting sleeve; 13. Mounting head; 14. Sealing ring; 15. L-shaped groove; 16. Locking block; 17. Push rod groove; 18. Groove; 19. Spring; 20. Push rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a pneumatic ball valve with a convenient valve core replacement, comprising a first outer shell 1, wherein the inner sides of the first outer shell 1 and the second outer shell 2 are combined to form a valve core groove 3, and both the first outer shell 1 and the second outer shell 2 are connected to a connecting pipe 4 on the side away from the valve core groove 3, wherein... A mounting flange 5 is fixedly connected to the end of the connecting pipe 4. A valve core 6 is provided in the valve core groove 3. A pneumatic actuator 7 is fixedly installed on the top of the first housing 1. The actuator rod 8 of the pneumatic actuator 7 passes through the first housing 1 and extends into the interior of the valve core groove 3. A transmission groove 9 is opened on the top of the valve core 6. A transmission key 10 is fixedly connected to the bottom end of the actuator 8 corresponding to the transmission groove 9. A communication port 11 is passed through the middle of the valve core 6. An installation sleeve 12 is fixedly connected to the side of the first outer shell 1 near the second outer shell 2. An installation head 13 is fixedly connected to the side of the second outer shell 2 corresponding to the installation sleeve 12. The installation sleeve 12 and the installation head 13 are detachably connected by a quick disassembly and assembly mechanism. When the valve core 6 needs to be replaced, the quick-release mechanism facilitates the rapid disassembly and assembly of the mounting sleeve 12 and the mounting head 13, thereby facilitating the disassembly and assembly of the first housing 1 and the second housing 2. After the first housing 1 and the second housing 2 are separated, the valve core 6 is rotated so that the transmission groove 9 on the valve core 6 is parallel to the pneumatic actuator 7, allowing the valve core 6 to be directly removed, separating it from the actuator rod 8. When installing the valve core 6, it is placed into the valve core groove 3, allowing the transmission key 10 to enter the transmission groove 9. After that, the first housing 1 and the second housing 2 are assembled, thus completing the replacement of the valve core 6. This valve core 6 installation structure facilitates its rapid replacement, effectively improving the maintenance efficiency of the pneumatic ball valve.

[0017] Please see Figures 1 to 4 The inner width of the middle part of the transmission groove 9 matches the outer width of the transmission key 10, and the inner width of the openings at both ends of the transmission groove 9 gradually increases from the inside to the outside. The inner walls of the valve core groove 3 of the first housing 1 and the second housing 2 are equipped with sealing rings 14, and the outer diameter of the sealing ring 14 is larger than the inner diameter of the connecting port 11, and the outer diameter of the sealing ring 14 is smaller than the outer diameter of the valve core 6. When the pneumatic actuator 7 controls the actuator rod 8 to rotate, the actuator rod 8 drives the valve core 6 to rotate through the transmission key 10. The transmission key 10 and the transmission groove 9 facilitate the pneumatic actuator 7 to control the rotation of the valve core 6, and the openings at both ends of the transmission groove 9 facilitate the direct disassembly or assembly of the valve core 6 and the actuator rod 8.

[0018] Please see Figures 1 to 4The quick-release mechanism includes an L-shaped slot 15. The inner wall of the mounting sleeve 12 has L-shaped slots 15 equidistantly spaced. A locking block 16 is fixedly connected to the outer side of the mounting head 13 corresponding to the L-shaped slot 15. A push rod slot 17 is equidistantly spaced on the side of the mounting head 13 facing the first outer shell 1. A groove 18 is formed on the side of the first outer shell 1 corresponding to the push rod slot 17. A spring 19 is installed inside the push rod slot 17. A push rod 20 is installed on the opening side of the spring 19 corresponding to the push rod slot 17. The end of the push rod 20 away from the spring 19 is spherical, and the outer diameter of the spherical surface of the push rod 20 matches the inner diameter of the groove 18. When the first outer shell 1 and the second outer shell 2 need to be separated, the first outer shell 1 and the second outer shell 2 rotate relative to each other, causing the second outer shell 2 to move the locking block 16 out of the L-shaped slot 15, thus completing the separation of the first outer shell 1 and the second outer shell 2. This allows the valve core 6 to... After replacement, the second outer shell 2 drives the mounting head 13 into the mounting sleeve 12, and the mounting head 13 drives the locking block 16 into the L-shaped groove 15. At the same time, the push rod 20 is resisted and retracts into the push rod groove 17 to overcome the elastic force of the spring 19. After the locking block 16 is locked into the L-shaped groove 15 by rotation, the push rod 20 is just aligned with the groove 18. The spring 19 pushes the push rod 20 against the groove 18, thus completing the pre-fixation of the first outer shell 1 and the second outer shell 2. After that, the pneumatic ball valve is fixedly connected to the pipeline through the mounting flange 5, which can prevent the relative rotation of the first outer shell 1 and the second outer shell 2, thereby preventing the connection between the first outer shell 1 and the second outer shell 2 from becoming loose. Through this quick disassembly and assembly mechanism, the first outer shell 1 and the second outer shell 2 can be quickly disassembled and assembled, which facilitates the replacement of the valve core 6.

[0019] Working Principle: This pneumatic ball valve features a convenient valve core replacement mechanism. When the valve core 6 needs replacement, a quick-release mechanism facilitates rapid disassembly and assembly between the mounting sleeve 12 and the mounting head 13, thereby facilitating the disassembly and assembly of the first outer shell 1 and the second outer shell 2. After the first outer shell 1 and the second outer shell 2 are separated, rotating the valve core 6 aligns the transmission groove 9 on the valve core 6 with the pneumatic actuator 7, allowing the valve core 6 to be directly removed, separating it from the actuator rod 8. During installation, the valve core 6 is placed into the valve core groove 3. After inserting the transmission key 10 into the transmission groove 9, the first outer shell 1 and the second outer shell 2 are assembled, thus completing the replacement of the valve core 6. This valve core 6 installation structure facilitates quick replacement, effectively improving the maintenance efficiency of the pneumatic ball valve. When the pneumatic actuator 7 controls the actuator rod 8 to rotate, the actuator rod 8 drives the valve core 6 to rotate via the transmission key 10. The transmission key 10 and transmission groove 9 facilitate the pneumatic actuator 7 to control the rotation of the valve core 6, while the openings at both ends of the transmission groove 9 allow for direct connection between the valve core 6 and the actuator rod 8. When disassembling or assembling, and when the first outer shell 1 and the second outer shell 2 need to be separated, the first outer shell 1 and the second outer shell 2 are rotated relative to each other, causing the second outer shell 2 to move the locking block 16 out of the L-shaped locking groove 15, thus completing the disassembly of the first outer shell 1 and the second outer shell 2. After the valve core 6 is replaced, the second outer shell 2 moves the mounting head 13 into the mounting sleeve 12, causing the mounting head 13 to move the locking block 16 into the L-shaped locking groove 15. At the same time, the push rod 20 is resisted and retracts into the push rod groove 17, overcoming the elastic force of the spring 19. By rotating, the locking block 16 is moved into the L-shaped locking groove 15. After the valve core 6 is inserted into the L-shaped slot 15, the push rod 20 is aligned with the groove 18, causing the spring 19 to push the push rod 20 against the groove 18, thus pre-fixing the first housing 1 and the second housing 2. After the pneumatic ball valve is fixedly connected to the pipeline through the mounting flange 5, relative rotation between the first housing 1 and the second housing 2 can be avoided, thereby preventing the connection between the first housing 1 and the second housing 2 from becoming loose. Through this quick disassembly and assembly mechanism, the first housing 1 and the second housing 2 can be quickly disassembled and assembled, thus facilitating the replacement of the valve core 6.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic ball valve with a convenient valve core replacement, comprising a first housing (1), a second housing (2), a valve core groove (3), a connecting pipe (4), a mounting flange (5), a valve core (6), a pneumatic actuator (7), an actuator rod (8), a transmission groove (9), a transmission key (10), a connecting port (11), a mounting sleeve (12), a mounting head (13), a sealing ring (14), an L-shaped groove (15), a locking block (16), a push rod groove (17), a recess (18), a spring (19), and a push rod (20), characterized in that: The inner sides of the first outer shell (1) and the second outer shell (2) are combined to form a valve core groove (3). Both the first outer shell (1) and the second outer shell (2) have a connecting pipe (4) on the side away from the valve core groove (3). The end of the connecting pipe (4) is fixedly connected to the mounting flange (5), the valve core groove (3) is provided with a valve core (6), the top of the first housing (1) is fixedly installed with a pneumatic actuator (7), the actuator rod (8) of the pneumatic actuator (7) passes through the first housing (1) and extends into the interior of the valve core groove (3), and the top of the valve core (6) is provided with a transmission groove (9). The actuator (8) is fixedly connected to the bottom end of the transmission groove (9) with a transmission key (10). The valve core (6) has a through-hole (11) in the middle. The first outer shell (1) is fixedly connected to the side of the second outer shell (2) with an installation sleeve (12). The second outer shell (2) is fixedly connected to the side of the installation sleeve (12) with an installation head (13). The installation sleeve (12) and the installation head (13) are detachably connected by a quick disassembly and assembly mechanism.

2. The pneumatic ball valve with convenient valve core replacement according to claim 1, characterized in that: The inner width of the middle part of the transmission groove (9) matches the outer width of the transmission key (10), and the inner width of the openings at both ends of the transmission groove (9) gradually increases from the inside to the outside.

3. A pneumatic ball valve with a convenient valve core replacement according to claim 1, characterized in that: The valve core groove (3) of the first housing (1) and the second housing (2) are both equipped with sealing rings (14), and the outer diameter of the sealing ring (14) is greater than the inner diameter of the connecting port (11), and the outer diameter of the sealing ring (14) is smaller than the outer diameter of the valve core (6).

4. A pneumatic ball valve with a convenient valve core replacement according to claim 1, characterized in that: The quick disassembly and assembly mechanism includes an L-shaped slot (15). The inner wall of the mounting sleeve (12) is provided with L-shaped slots (15) at equal intervals. The mounting head (13) is fixedly connected to a block (16) on the outer side of the L-shaped slot (15). The mounting head (13) is provided with a top rod slot (17) at equal intervals on the side facing the first outer shell (1). The first outer shell (1) is provided with a groove (18) on the side corresponding to the top rod slot (17). A spring (19) is installed in the top rod slot (17). A top rod (20) is installed on the opening side of the spring (19) corresponding to the top rod slot (17).

5. A pneumatic ball valve with a convenient valve core replacement according to claim 4, characterized in that: The end of the push rod (20) away from the spring (19) is spherical, and the outer diameter of the spherical surface of the push rod (20) matches the inner diameter of the groove (18).

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