Three-way pneumatic ball valve

Abstract

The utility model relates to the technical field of valves, and discloses a three-way pneumatic ball valve which comprises a three-way pneumatic ball valve body, a mounting support is arranged at the top end of the three-way pneumatic ball valve body, a protective cover is movably connected to the upper portion of the mounting support, fixing frames are fixedly arranged on the two sides of the mounting support, and the protective cover is movably connected to the lower portion of the mounting support. A rotating handle is arranged on the outer side of the fixing frame, one end of the rotating handle penetrates through the fixing frame to be fixedly connected with an inner threaded sleeve, and the end, away from the rotating handle, of the inner threaded sleeve is sleeved with a threaded rod through threads. According to the three-way pneumatic ball valve, the rotating handle is rotated to drive the inner threaded sleeve to rotate, so that the threaded rod drives the locking plate to move, rapid insertion connection and separation of the locking plate and the clamping groove are achieved, the groove in the mounting support is matched with insertion connection of the protective cover, and convenient disassembly and assembly of the protective cover can be completed without tools; and through threaded connection of the threaded rod and the inner threaded sleeve and cooperation of the locking plate and the clamping groove, the protective cover can be effectively prevented from loosening in the use process, and the installation stability of the protective cover is ensured.

Description

Technical Field

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

[0002] Three-way pneumatic ball valves are a common fluid control device widely used in many fields such as petroleum, chemical, natural gas, and water supply and drainage to realize functions such as fluid reversal, diversion, or merging.

[0003] The existing patent document CN219432574U provides a three-way pneumatic ball valve. This utility model facilitates the quick installation and disassembly of the mounting plate and protective cover by subsequent workers, and makes it convenient for workers to inspect the parts inside the protective cover. Since a sealing gasket is provided in the first connecting groove, the connecting plate installed at the bottom of the protective cover can be located in the second connecting groove opened in the sealing gasket. This structure can enhance the tightness of the connection between the mounting plate and the protective cover.

[0004] However, existing three-way pneumatic ball valves suffer from poor connection stability during use. While they utilize the elastic potential energy of springs to connect the protective cover, enabling quick installation, the springs, constantly under compression or tension, are prone to elastic fatigue and deformation. This causes the protective cover to shake and shift during equipment operation. When subjected to external impacts, vibrations, or prolonged use, the spring's elasticity weakens, causing the protective cover connection to loosen and making it difficult to continuously provide stable fastening force. This fails to effectively protect core components such as internal pneumatic actuators. Furthermore, relying solely on spring connections lacks redundancy; if the spring fails, the protective cover loses its fixing function, posing a risk of protective failure. Moreover, precise adjustment of spring tension is required during maintenance, making operation complex and maintenance difficult, failing to meet the dual requirements of equipment stability and convenience in industrial settings. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a three-way pneumatic ball valve to solve the problem of poor connection stability in the use of existing three-way pneumatic ball valves mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a three-way pneumatic ball valve, comprising a three-way pneumatic ball valve body, a mounting bracket provided at the top of the three-way pneumatic ball valve body, a protective cover movably connected above the mounting bracket, and fixing brackets fixedly provided on both sides of the mounting bracket;

[0009] A throttle is provided on the outer side of the fixed frame. One end of the throttle passes through the fixed frame and is fixedly connected to an internally threaded sleeve. A threaded rod is threadedly connected to the end of the internally threaded sleeve away from the throttle. A locking plate is fixedly connected to the end of the threaded rod away from the internally threaded sleeve. A slot is fixedly provided on the outer side of the protective cover. The locking plate is movably inserted into the slot.

[0010] Furthermore, an internal frame is fixedly installed inside the protective cover, and a fixing groove is provided inside the protective cover on the outside of the internal frame.

[0011] Furthermore, connecting blocks are fixedly provided on both sides of the built-in frame, and a docking frame is fixedly provided inside the mounting bracket, the docking frame being movably inserted into the fixing groove.

[0012] Furthermore, the mounting bracket has a groove located on the outside of the docking frame, and the protective cover is movably inserted into the groove.

[0013] Furthermore, connecting grooves are fixedly provided on both sides inside the docking frame, and the connecting block corresponds to the connecting groove.

[0014] Furthermore, a guide rod is provided on the side of the locking plate near the threaded rod, and the end of the guide rod away from the locking plate extends through to the outside of the fixing frame.

[0015] Furthermore, a locking rod is movably inserted into one side of the throttle, and the locking rod movably abuts against the fixing frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This three-way pneumatic ball valve rotates the internal threaded sleeve by turning the handle, which in turn moves the threaded rod and the locking plate, enabling quick insertion and separation of the locking plate and the slot. It also fits into the groove on the mounting bracket and inserts into the protective cover, allowing for easy installation and removal of the protective cover without tools. At the same time, the threaded connection between the threaded rod and the internal threaded sleeve, as well as the fit between the locking plate and the slot, effectively prevents the protective cover from loosening during use, ensuring the stability of the protective cover installation.

[0018] 2. This three-way pneumatic ball valve features multiple interconnected structures that work together to enhance the stability of the connection between the protective cover and the mounting bracket. The guide rod guides the movement of the locking plate, ensuring accurate insertion of the locking plate into the slot. The locking rod can fix the handle, preventing accidental rotation that could cause the locking plate to loosen. This comprehensive design ensures the stability and reliability of the three-way pneumatic ball valve protective cover after installation. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the mounting bracket of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the docking frame of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the protective cover of this utility model.

[0023] In the diagram: 1. Three-way pneumatic ball valve body; 2. Mounting bracket; 3. Protective cover; 4. Fixing bracket; 5. Rotary handle; 6. Internal threaded sleeve; 7. Threaded rod; 8. Locking plate; 9. Slot; 10. Internal frame; 11. Fixing groove; 12. Connecting block; 13. Docking frame; 14. Groove; 15. Connecting groove; 16. Guide rod; 17. Locking rod. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a three-way pneumatic ball valve, including a three-way pneumatic ball valve body 1, a mounting bracket 2 is provided at the top of the three-way pneumatic ball valve body 1, a protective cover 3 is movably connected above the mounting bracket 2, and a fixing bracket 4 is fixedly provided on both sides of the mounting bracket 2.

[0026] A handle 5 is provided on the outside of the fixed frame 4. One end of the handle 5 passes through the fixed frame 4 and is fixedly connected to an internal threaded sleeve 6. The end of the internal threaded sleeve 6 away from the handle 5 is threadedly connected to a threaded rod 7. The end of the threaded rod 7 away from the internal threaded sleeve 6 is fixedly connected to a locking plate 8. A slot 9 is fixedly provided on the outside of the protective cover 3. The locking plate 8 and the slot 9 are movably inserted into each other.

[0027] The operator turns the handle 5, which drives the internal threaded sleeve 6 to rotate. Since the internal threaded sleeve 6 is threadedly connected to the threaded rod 7, the threaded rod 7 will move axially under the threaded transmission, driving the locking plate 8 to move towards the slot 9 until the locking plate 8 is fully inserted into the slot 9, thus locking the protective cover 3 and the fixing frame 4. At this time, the guide rod 16, under the guidance of the fixing frame 4, ensures that the locking plate 8 moves smoothly and avoids deviation. When disassembling the protective cover 3, first pull out the locking rod 17, and then turn the handle 5 in the opposite direction. The internal threaded sleeve 6 drives the threaded rod 7 to move in the opposite direction, and the locking plate 8 is pulled out from the slot 9, releasing the lock on the protective cover 3. After that, simply lift the protective cover 3 upwards to complete the disassembly of the protective cover 3.

[0028] The protective cover 3 has an internally fixed frame 10. The protective cover 3 has a fixed groove 11 located outside the internally fixed frame 10. The internally fixed frame 10 has connecting blocks 12 fixed on both sides. The mounting bracket 2 has an internally fixed docking frame 13, which is movably inserted into the fixed groove 11. The mounting bracket 2 has an internally fixed groove 14 located outside the docking frame 13, which is movably inserted into the protective cover 3. The docking frame 13 has connecting grooves 15 fixed on both sides, and the connecting blocks 12 correspond to the connecting grooves 15. The locking plate 8 has a guide rod 16 located on the side near the threaded rod 7. The end of the guide rod 16 away from the locking plate 8 extends through to the outside of the fixed frame 4. The throttle 5 has a locking rod 17 movably inserted on one side, which movably abuts against the fixed frame 4.

[0029] When installing the protective cover 3, first align the protective cover 3 with the mounting bracket 2, ensuring the outer side of the protective cover 3 is aligned with the groove 14. Align the connecting block 12 on the inner frame 10 with the connecting groove 15 inside the docking frame 13, and align the fixing groove 11 on the outer side of the inner frame 10 with the docking frame 13. Slowly lower the protective cover 3, allowing it to engage with the groove 14. Simultaneously, insert the connecting block 12 into the connecting groove 15, and embed the docking frame 13 into the fixing groove 11. This completes the initial positioning and installation of the protective cover 3. Finally, insert the locking rod 17 into one side of the throttle 5, making it abut against the fixing bracket 4 to prevent the throttle 5 from accidentally engaging. The external rotation further ensures the stability of the connection. During daily use, the multiple connection structures work together to ensure the stability of the connection. The insertion of the groove 14 and the protective cover 3, the cooperation of the connecting block 12 and the connecting groove 15, and the insertion of the docking frame 13 and the fixing groove 11 form a multi-level limit and fixation. The locking of the locking plate 8 and the slot 9 and the anti-rotation design of the locking rod 17 further strengthen the connection strength. Even if the three-way pneumatic ball valve body 1 is under complex working conditions such as vibration and high pressure, it can effectively prevent the protective cover 3 from loosening or falling off, and continuously provide reliable protection for the internal components.

[0030] Working principle: When installing the protective cover 3, first align the protective cover 3 with the mounting bracket 2, aligning the outer side of the protective cover 3 with the groove 14. Align the connecting block 12 on the inner frame 10 with the connecting groove 15 in the docking frame 13, and align the fixing groove 11 on the outer side of the inner frame 10 with the docking frame 13. Slowly lower the protective cover 3, allowing it to engage with the groove 14. Simultaneously, insert the connecting block 12 into the connecting groove 15, and embed the docking frame 13 into the fixing groove 11, thus initially completing the positioning and installation of the protective cover 3. Next, rotate the handle 5, which drives the internal threaded sleeve 6 to rotate. Since the internal threaded sleeve 6 is threadedly connected to the threaded rod 7, the threaded rod 7 will move axially under the threaded transmission, driving the locking plate 8 to move towards the slot 9 until the locking plate 8 is fully inserted into the slot 9, thus locking the protective cover 3 and the fixing bracket 4. At this time, the guide rod 16, guided by the fixing bracket 4, ensures that the locking plate 8 moves smoothly and avoids deviation. Finally, insert the locking rod 17 into one side of the handle 5, making it abut against the fixing bracket 4 to prevent the handle 5 from engaging. Unexpected rotation further ensures the stability of the connection. When disassembling the protective cover 3, first pull out the locking rod 17, then turn the handle 5 in the opposite direction. The internal threaded sleeve 6 drives the threaded rod 7 to move in the opposite direction, and the locking plate 8 is pulled out from the slot 9, releasing the lock on the protective cover 3. Then, lift the protective cover 3 directly upward to separate it from the groove 14. The connecting block 12 on the internal frame 10 disengages from the connecting groove 15, and the docking frame 13 is pulled out from the fixing groove 11, thus completing the disassembly of the protective cover 3. In daily use, the multiple connection structures work together to ensure the stability of the connection. The insertion of the groove 14 and the protective cover 3, the cooperation of the connecting block 12 and the connecting groove 15, and the insertion of the docking frame 13 and the fixing groove 11 form a multi-level limit and fixation. The locking of the locking plate 8 and the slot 9 and the anti-rotation design of the locking rod 17 further strengthen the connection strength. Even if the three-way pneumatic ball valve body 1 is under complex working conditions such as vibration and high pressure, it can effectively prevent the protective cover 3 from loosening or falling off, and continuously provide reliable protection for the internal components.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A three-way pneumatic ball valve comprising a three-way pneumatic ball valve body (1), characterized in that: The top of the three-way pneumatic ball valve body (1) is provided with a mounting bracket (2), a protective cover (3) is movably connected above the mounting bracket (2), and a fixing bracket (4) is fixedly provided on both sides of the mounting bracket (2). A throttle (5) is provided on the outside of the fixed frame (4). One end of the throttle (5) passes through the fixed frame (4) and is fixedly connected to an internal threaded sleeve (6). The end of the internal threaded sleeve (6) away from the throttle (5) is threadedly connected to a threaded rod (7). The end of the threaded rod (7) away from the internal threaded sleeve (6) is fixedly connected to a locking plate (8). A slot (9) is fixedly provided on the outside of the protective cover (3). The locking plate (8) is movably inserted into the slot (9).

2. A three-way pneumatic globe valve according to claim 1, characterized in that: The protective cover (3) has an internal frame (10) fixedly installed inside, and a fixing groove (11) is provided inside the protective cover (3) on the outside of the internal frame (10).

3. A three-way pneumatic globe valve according to claim 2, characterized in that: Connecting blocks (12) are fixedly provided on both sides of the built-in frame (10), and a docking frame (13) is fixedly provided inside the mounting bracket (2). The docking frame (13) is movably inserted into the fixing groove (11).

4. A three-way pneumatic globe valve according to claim 3, characterized in that: The mounting bracket (2) has a groove (14) located on the outside of the docking frame (13) inside, and the protective cover (3) is movably inserted into the groove (14).

5. A three-way pneumatic globe valve according to claim 4, characterized in that: The docking frame (13) has connecting grooves (15) fixedly provided on both sides inside, and the connecting block (12) corresponds to the connecting grooves (15).

6. A three-way pneumatic globe valve according to claim 5, characterized in that: The locking plate (8) is provided with a guide rod (16) on the side near the threaded rod (7), and the end of the guide rod (16) away from the locking plate (8) extends through to the outside of the fixing frame (4).

7. A three-way pneumatic globe valve according to claim 6, characterized in that: A locking rod (17) is movably inserted into one side of the throttle (5), and the locking rod (17) movably abuts against the fixing frame (4).

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