An openable and closable pneumatic pipe valve

Abstract

The present application relates to the technical fields of pneumatic valve, and discloses an opening adjustable pneumatic pipeline valve, which comprises a valve body, a driving assembly and a sliding cylinder slidingly arranged in the valve body, the sliding cylinder can slide along the axial direction under the driving of the driving assembly to close or open the valve body, and an adjusting assembly is arranged on the valve body, which can adjust the sliding stroke of the sliding cylinder. The adjusting assembly is arranged to adjust the sliding stroke of the sliding cylinder, and the maximum sliding stroke of the sliding cylinder under the driving of the driving assembly is controlled, so that the opening is adjusted.

Description

Technical Field

[0001] This invention relates to the field of pneumatic valve technology, and more particularly to a pneumatic pipeline valve with adjustable opening degree. Background Technology

[0002] A pneumatic valve is a valve driven by compressed air and can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, and oil. Currently, existing pneumatic actuators can generally only be used to control the valve to be fully open or fully closed, and cannot allow users to position the valve to a specific degree of opening or closing as needed. This results in certain limitations of existing pneumatic actuators in practical applications. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a pneumatic pipeline valve with adjustable opening degree, which solves the problem of non-adjustable opening degree in existing pneumatic valves.

[0004] The present invention solves the above-mentioned technical problems through the following technical means:

[0005] An adjustable pneumatic pipeline valve includes a valve body, a drive assembly, and a slide cylinder slidably disposed within the valve body. The slide cylinder can slide along the axial direction under the drive assembly to close or open the valve body. An adjustment assembly is provided on the valve body, which can adjust the sliding stroke of the slide cylinder.

[0006] This application provides an adjustment component to adjust the sliding stroke of the slide cylinder and control the maximum sliding stroke of the slide cylinder driven by the drive component, thereby achieving the purpose of adjusting the opening degree.

[0007] More preferably, the valve body includes an upper body and a lower body, the upper body is provided with a first connecting plate, the lower body is provided with a second connecting plate, and the upper body and the lower body are detachably connected based on the first connecting plate and the second connecting plate.

[0008] This application sets the valve body as a spliced ​​structure, which facilitates the installation of the slide tube and also makes it convenient to repair and replace the valve body.

[0009] More preferably, the slide cylinder is provided with a wing plate on its periphery, and the inner wall of the upper main body is provided with a working cavity corresponding to the wing plate. The wing plate is slidably disposed in the working cavity. A sealing ring is provided on the wing plate. The wing plate is interference-fitted to the working cavity based on the sealing ring. The driving assembly includes a connecting pipe and an air pump. A connecting hole is provided on the outer wall of the upper main body. The connecting hole communicates with the working cavity. The air pump is connected to the working cavity based on the connecting pipe and the connecting hole.

[0010] In this application, an air pump is used to drive the slide cylinder. During use, the wing plate and slide cylinder are driven to slide by filling and releasing air into the working chamber. The valve opening and closing method is simple and quick.

[0011] More preferably, the upper body is rotatably connected to the first connecting plate, an intermediate cylinder is provided between the upper body and the slide cylinder, one end of the intermediate cylinder is fixed to the first connecting plate, a through hole is provided on the intermediate cylinder corresponding to the working cavity, the adjusting component includes a limiting slider, the limiting slider is slidably disposed in the through hole, the sliding direction of the limiting slider is parallel to the axial direction of the intermediate cylinder, the outer side of the limiting slider is provided with threads, the inner wall of the upper body is provided with threads, and the upper body is screwed to the limiting slider.

[0012] In this application, a limit slider is set to limit the maximum sliding stroke of the slide cylinder. When the upper body rotates, it can drive the limit slider to slide in the working chamber. In this way, the sliding wing plate, under the action of the air pump, stops sliding when it reaches the limit slider, thereby achieving the purpose of controlling the valve opening. The maximum opening of the valve is different when the limit slider is in different positions.

[0013] More preferably, a first flange is provided at the end of the intermediate cylinder away from the first connecting plate, and a second flange is provided at the end of the lower body away from the second connecting plate, wherein the inner diameter of the first flange is smaller than the outer diameter of the slide cylinder.

[0014] In this application, the first flange and the second flange are capable of installing the valve into the pipeline, and the first flange is capable of limiting the maximum sliding stroke of the slide to prevent the slide from sliding out of the valve body.

[0015] More preferably, a valve plate is provided inside the lower body, and a connecting rod is provided around the valve plate. One end of the connecting rod is connected to the inner wall of the lower body, and the other end is connected to the valve plate. The valve plate is located below the slide cylinder. When the slide cylinder slides to abut against the valve plate, the valve plate can seal the end of the slide cylinder located inside the lower body. A sealing washer and a pressure plate are provided near the end of the valve plate close to the slide cylinder. The sealing washer is located between the pressure plate and the valve plate. The pressure plate, the sealing washer, and the valve plate are connected by bolts.

[0016] In this application, when the slide cylinder slides to one end and abuts against the valve plate, the internal space of the slide cylinder is isolated from the internal space of the lower main body, the valve is closed, and the sealing gasket can assist the valve plate in sealing the slide cylinder.

[0017] More preferably, an adjustment ring is provided on the periphery of the upper body. One end of the adjustment ring is provided with a first driven tooth along the circumferential direction, and the other end is provided with a second driven tooth along the circumferential direction. The arrangement density of the first driven tooth and the arrangement density of the second driven tooth are different. A first gear and a second gear are respectively provided at both ends of the adjustment ring, which mesh with the first driven tooth and the second driven tooth. A drive mechanism is connected to both the first gear and the second gear.

[0018] In this application, when driving the upper body, two driving methods are set. By setting driven teeth with different arrangement densities, under the same output source, the first driven tooth and the second driven tooth can drive the upper body to rotate at different angles, so as to achieve the effect of controlling the valve opening with different precision. In use, the valve opening can be adjusted more accurately by first adjusting the valve opening with low precision and then adjusting the valve opening with high precision.

[0019] More preferably, the drive mechanism includes a mounting base, two drive shafts, a first transmission gear, a second transmission gear, and a drive ring. The mounting base is disposed on the first connecting plate. One end of each of the two drive shafts is connected to the first gear and the second gear, respectively, and the other end passes through the mounting base and is connected to the first transmission gear and the second transmission gear, respectively. The first transmission gear and the second transmission gear are at different distances from the mounting base. One end of the drive ring is rotatably connected to the mounting base. The mounting base is provided with corresponding connecting grooves. The drive ring can slide axially from a first working condition to a second working condition. A first annular tooth and a second annular tooth are provided at different depths on the inner wall of the drive ring. When the drive ring is in the first working condition, only the first annular tooth meshes with the first transmission gear. When the drive ring is in the second working condition, only the second annular tooth meshes with the second transmission gear.

[0020] In this application, a drive ring is used to drive different transmission gears to rotate, which can selectively adjust the valve opening degree from different precisions. Different transmission gears can be driven by sliding the drive ring, and the switching method is simple. Even when the drive source is manually driven, it can still have high opening degree control precision.

[0021] More preferably, the connecting groove is provided with two sets of annular grooves, and the inner wall of the driving ring is provided with a connecting ring. When the driving ring is in the first working condition or the second working condition, the connecting ring is respectively engaged with the annular grooves at different positions.

[0022] In this application, an annular groove and a connecting ring are provided to maintain the position of the drive ring under the first or second working condition, thereby ensuring the driving stability of the drive ring on the first or second transmission gear.

[0023] More preferably, the drive ring is provided with a handle.

[0024] In this application, a handle is provided on the drive ring to facilitate manual driving of the drive ring.

[0025] The beneficial effects of this invention are:

[0026] 1. In this application, an air pump is used to drive the slide cylinder. During use, the wing plate and slide cylinder are driven to slide by filling and releasing air into the working chamber. The valve opening and closing method is simple and quick.

[0027] 2. In this application, a limit slider is set to limit the maximum sliding stroke of the slide cylinder. When the upper body rotates, it can drive the limit slider to slide in the working chamber. In this way, the sliding wing plate under the action of the air pump will stop sliding when it reaches the limit slider, thereby achieving the purpose of controlling the valve opening. The maximum opening of the valve is different when the limit slider is in different positions.

[0028] 3. In this application, when driving the upper body, two driving methods are set. By setting driven teeth with different arrangement densities, under the same output source, the first driven tooth and the second driven tooth can drive the upper body to rotate at different angles, so as to achieve the effect of controlling the valve opening with different precision. In use, the valve opening can be adjusted more accurately by first adjusting the valve opening with low precision and then adjusting the valve opening with high precision. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the pneumatic pipeline valve with adjustable opening degree of the present invention;

[0030] Figure 2 This is the present invention. Figure 1 Enlarged view of section A;

[0031] Figure 3 This is a cross-sectional view of the pneumatic pipeline valve with adjustable opening according to the present invention.

[0032] Figure 4 This is the present invention. Figure 3 Enlarged view of section B;

[0033] Figure 5 This is a cross-sectional view of the main body of the present invention;

[0034] Figure 6 This is a cross-sectional view of the intermediate cylinder portion of the present invention;

[0035] Figure 7 This is a schematic diagram of the mounting base of the present invention;

[0036] Figure 8 This is a schematic diagram of the drive ring of the present invention;

[0037] in,

[0038] 11. Upper body; 12. Lower body; 13. First connecting plate; 14. Second connecting plate; 15. Intermediate cylinder; 16. Through hole; 17. First flange; 18. Second flange; 19. Valve plate; 191. Sealing gasket; 192. Pressure plate; 193. Connecting rod; 20. Slide cylinder; 31. Working chamber; 32. Wing plate; 33. Connecting hole; 41. Limiting slider; 51. Adjusting ring; 52. First driven gear; 53. Second driven gear; 55. First gear; 56. Second gear; 571. Mounting base; 5711. Connecting groove; 5712. Annular groove; 572. Drive shaft; 5731. First transmission gear; 5732. Second transmission gear; 5733. Connecting ring; 5734. Handle; 574. Drive ring; 575. First annular tooth; 576. Second annular tooth. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] like Figure 1-8 As shown, an adjustable-opening pneumatic pipeline valve of the present invention includes a valve body, a drive assembly, and a slide cylinder 20 slidably disposed within the valve body. The drive assembly drives the slide cylinder 20 to slide. Driven by the drive assembly, the slide cylinder 20 can slide along the axial direction to close or open the valve body. An adjustment assembly is provided on the valve body. The adjustment assembly can adjust the sliding stroke of the slide cylinder 20.

[0041] Specifically, the valve body includes an upper body 11 and a lower body 12. The upper body 11 and the lower body 12 are detachably connected. A first connecting plate 13 is provided on the upper body 11, and a second connecting plate 14 is provided on the lower body 12. The first connecting plate 13 and the second connecting plate 14 are fixed together by bolts and nuts. The first connecting plate 13 and the second connecting plate 14 are provided with holes for bolts to pass through. A wing plate 32 is provided around the periphery of the slide cylinder 20. A working chamber 31 is provided on the inner wall of the upper body 11 corresponding to the wing plate 32. The wing plate 32 is slidably disposed in the working chamber 31. A sealing ring is provided around the periphery of the wing plate 32. The wing plate 32 is interference-fitted to the inner wall of the working chamber 31 through the sealing ring. The drive assembly drives the slide cylinder 20 to slide by driving the wing plate 32 to slide. The drive assembly includes a connecting pipe and an air pump. A connecting hole 33 communicating with the working chamber 31 is opened on the outer wall of the upper body 11. The air pump is connected to the working chamber 31 through the connecting pipe and the connecting hole 33. The air pump drives the wing plate 32 and the slide 20 to slide by inflating or drawing air into the working chamber 31.

[0042] The upper body 11 is rotatably connected to the first connecting plate 13. An intermediate cylinder 15 is provided between the upper body 11 and the slide cylinder 20, with one end of the intermediate cylinder 15 fixed to the first connecting plate 13. A through hole 16 is provided in the intermediate cylinder 15 corresponding to the working cavity 31. The adjustment assembly includes a limiting slider 41. The limiting slider 41 is slidably disposed in the through hole 16. The sliding direction of the limiting slider 41 is parallel to the axial direction of the intermediate cylinder 15. A thread is provided on the outer side of the limiting slider 41. A thread is provided on the inner wall of the upper body 11, and the upper body 11 is screwed to the limiting slider 41. When the upper body rotates relative to the intermediate cylinder 15, it can drive the limiting slider 41 to slide in the through hole 16, thereby adjusting the sliding stroke of the wing plate 32 in the working cavity 31, and thus adjusting the opening of the slide cylinder 20. A first flange 17 is provided at the end of the intermediate cylinder 15 away from the first connecting plate 13. A second flange 18 is provided at the end of the lower body 12 away from the second connecting plate 14. The inner diameter of the first flange 17 is smaller than the outer diameter of the slide cylinder 20. This allows it to cooperate with the limiting slider 41 to limit the maximum sliding stroke of the slide cylinder 20, preventing it from sliding out. The first flange 17 and the second flange 18 are used to connect the valve assembly to the pipeline. A sealing ring is provided between the slide cylinder 20 and the intermediate cylinder 15 to seal the working chamber 31.

[0043] A valve plate 19 is installed inside the lower body 12. The valve plate 19 works with the slide cylinder 20 to separate the internal spaces of the upper body 11 and the lower body 12. A connecting rod 193 is provided around the valve plate 19. The valve plate 19 is connected to the inner wall of the lower body 12 based on the connecting rod 193. The valve plate 19 is located below the slide cylinder 20. When the slide cylinder 20 slides to abut against the valve plate 19, the valve plate 19 separates the internal space of the slide cylinder 20 from the internal space of the lower body 12, thus closing the valve; when the slide cylinder 20 slides to a position where it is not abutting against the valve plate 19, the internal space of the slide cylinder 20 and the internal space of the lower body 12 are connected, and the valve is in the open state. A sealing gasket 191 and a pressure plate 192 are provided near the end of the valve plate 19 close to the slide cylinder 20. The sealing gasket 191 is located between the pressure plate 192 and the valve plate 19. The pressure plate 192, the sealing gasket 191, and the valve plate 19 are connected by bolts. This application includes a sealing gasket 191 to improve the sealing performance at the connection between the slide cylinder 20 and the valve plate 19.

[0044] Combined with appendix Figure 2 The device also includes a drive mechanism. The drive mechanism drives the upper body 11 to rotate relative to the intermediate cylinder 15, thereby driving the limiting slider 41. Specifically, an adjusting ring 51 is provided around the upper body 11. The adjusting ring 51 is fixedly connected to the upper body 11. One end of the adjusting ring 51 has a first driven tooth 52 arranged circumferentially, and the other end has a second driven tooth 53 arranged circumferentially. The first driven tooth 52 and the second driven tooth 53 have different arrangement densities. The first driven tooth 52 and the second driven tooth 53 are used to control the opening degree of the slide cylinder 20 with different levels of precision. For example, when the arrangement density of the first driven tooth 52 is higher than that of the second driven tooth 53, the angular precision of the rotation of the upper body 11 driven by the first driven tooth 52 is higher than that of the second driven tooth 53. A first gear 55 and a second gear 56 are respectively provided at both ends of the adjusting ring 51, meshing with the first driven tooth 52 and the second driven tooth 53. Both the first gear 55 and the second gear 56 are driveably connected to the drive mechanism. The drive mechanism can be directly configured as a motor or other device.

[0045] Combined with appendix Figure 4 In this application, the drive mechanism includes a mounting base 571, two drive shafts 572, a first transmission gear 5731, a second transmission gear 5732, and a drive ring 574. The mounting base 571 is disposed on the first connecting plate 13. One end of each of the two drive shafts 572 is connected to the first gear 55 and the second gear 56, respectively, and the other end passes through the mounting base 571 and is connected to the first transmission gear 5731 and the second transmission gear 5732, respectively. The first transmission gear 5731 and the second transmission gear 5732 are located at different distances from the mounting base 571. It is worth noting that the drive shafts 572 can only rotate relative to the mounting base 571 and cannot slide relative to the mounting base 571. In practical applications, a limiting mechanism can be provided at the connection between the drive shafts 572 and the mounting base 571.

[0046] One end of the drive ring 574 is rotatably connected to the mounting base 571. The mounting base 571 is provided with a corresponding connecting groove 5711. The drive ring 574 can slide axially from a first working condition to a second working condition. A first annular tooth 575 and a second annular tooth 576 are provided at different depths on the inner wall of the drive ring 574. When the drive ring 574 is in the first working condition, only the first annular tooth 575 engages with the first transmission gear 5731; when the drive ring 574 is in the second working condition, only the second annular tooth 576 engages with the second transmission gear 5732. To ensure smooth meshing of the first annular tooth 575 and the first transmission gear 5731 during the sliding process of the drive ring 574, the teeth on the first annular tooth 575 are designed to be narrower at the end near the first transmission gear 5731 and wider at the end away from the first transmission gear 5731. When the drive ring 574 is in different working conditions, it can drive the first gear 55 and the second gear 56 to rotate respectively, thereby driving the upper body 11 to rotate with different precisions. This allows for more precise control over the valve opening.

[0047] Two sets of annular grooves 5712 are provided within the connecting groove 5711. A connecting ring 5733 is provided on the inner wall of the drive ring 574. When the drive ring 574 is in the first working condition or the second working condition, the connecting ring 5733 engages with the annular grooves 5712 at different positions. This facilitates the stable rotation of the drive ring 574 under different working conditions. A handle 5734 is provided on the circumference of the drive ring 574 for convenient manual operation.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention. Technical aspects, shapes, and structures not described in detail in this invention are all well-known technologies.

Claims

1. A pneumatic pipeline valve with adjustable opening degree, characterized in that, The valve body includes a valve body, a drive assembly, and a slide cylinder (20) slidably disposed within the valve body. The slide cylinder (20) can slide along the axial direction under the drive of the drive assembly to close or open the valve body. An adjustment assembly is provided on the valve body, which can adjust the sliding stroke of the slide cylinder (20). The valve body includes an upper body (11) and a lower body (12). A first connecting plate (13) is provided below the upper body (11). The upper body (11) is rotatably connected to the first connecting plate (13). An intermediate cylinder (15) is provided between the upper body (11) and the slide cylinder (20). A second connecting plate (14) is provided on the lower body (12). The upper body (11) and the lower body (12) are detachably connected based on the first connecting plate (13) and the second connecting plate (14). The slide cylinder (20) is provided with a wing plate (32) around its periphery. The inner wall of the intermediate cylinder (15) is provided with a working cavity (31) corresponding to the wing plate (32). The wing plate (32) is slidably disposed in the working cavity (31). A sealing ring is provided on the wing plate (32). The wing plate (32) is interference-fitted to the working cavity (31) based on the sealing ring. The drive assembly includes a connecting pipe and an air pump. The first connecting plate (13) is provided with an annular platform on the side near the upper body (11) outside the intermediate cylinder (15). A connecting hole (33) is provided on the outer wall of the annular platform. The connecting hole (33) communicates with the working cavity (31). The air pump is connected to the working cavity (31) based on the connecting pipe and the connecting hole (33). One end of the intermediate cylinder (15) is fixed to the first connecting plate (13). The intermediate cylinder (15) is provided with a through hole (16) corresponding to the working cavity (31). The adjustment component includes a limiting slider (41). The limiting slider (41) is slidably disposed in the through hole (16). The sliding direction of the limiting slider (41) is parallel to the axial direction of the intermediate cylinder (15). The outer side of the limiting slider (41) is provided with a thread. The inner wall of the upper body (11) is provided with a thread. The upper body (11) is screwed to the limiting slider (41). A valve plate (19) is provided inside the lower body (12), and a connecting rod (193) is provided around the valve plate (19). One end of the connecting rod (193) is connected to the inner wall of the lower body (12), and the other end is connected to the valve plate (19). The valve plate (19) is located below the slide cylinder (20). When the slide cylinder (20) slides to abut against the valve plate (19), the valve plate (19) can close the end of the slide cylinder (20) located inside the lower body (12). When the upper body (11) rotates, it can drive the limiting slider (41) to slide within the working cavity (31).

2. The pneumatic pipeline valve with adjustable opening degree according to claim 1, characterized in that, The intermediate cylinder (15) is provided with a first flange (17) at the end away from the first connecting plate (13), and the lower body (12) is provided with a second flange (18) at the end away from the second connecting plate (14). The inner diameter of the first flange (17) is smaller than the outer diameter of the slide cylinder (20).

3. The pneumatic pipeline valve with adjustable opening degree according to claim 1, characterized in that, The valve plate (19) is provided with a sealing gasket (191) and a pressure plate (192) at one end near the slide cylinder (20). The sealing gasket (191) is located between the pressure plate (192) and the valve plate (19). The pressure plate (192), the sealing gasket (191) and the valve plate (19) are connected by bolts.

4. The pneumatic pipeline valve with adjustable opening degree according to claim 1, characterized in that, An adjustment ring (51) is provided on the periphery of the upper body (11). One end of the adjustment ring (51) is provided with a first driven tooth (52) along the circumferential direction, and the other end is provided with a second driven tooth (53) along the circumferential direction. The arrangement density of the first driven tooth (52) is different from that of the second driven tooth (53). The two ends of the adjustment ring (51) are respectively provided with a first gear (55) and a second gear (56) meshing with the first driven tooth (52) and the second driven tooth (53). Both the first gear (55) and the second gear (56) are connected to a drive mechanism.

5. The pneumatic pipeline valve with adjustable opening degree according to claim 4, characterized in that, The drive mechanism includes a mounting base (571), two drive shafts (572), a first transmission gear (5731), a second transmission gear (5732), and a drive ring (574). The mounting base (571) is mounted on the first connecting plate (13). One end of each of the two drive shafts (572) is connected to the first gear (55) and the second gear (56), respectively, and the other end passes through the mounting base (571) and is connected to the first transmission gear (5731) and the second transmission gear (5732), respectively. The distance between the first transmission gear (5731) and the second transmission gear (5732) and the mounting base (571) is different. One end of the drive ring (574) is rotatably connected to the mounting base (571). The mounting base (571) is provided with a corresponding connecting groove (5711). The drive ring (574) can slide axially from the first working condition to the second working condition. The inner wall of the drive ring (574) is provided with a first ring tooth (575) and a second ring tooth (576) at different depths. When the drive ring (574) is in the first working condition, only the first ring tooth (575) meshes with the first transmission gear (5731). When the drive ring (574) is in the second working condition, only the second ring tooth (576) meshes with the second transmission gear (5732).

6. The pneumatic pipeline valve with adjustable opening degree according to claim 5, characterized in that, The connecting groove (5711) is provided with two sets of annular grooves (5712), and the inner wall of the driving ring (574) is provided with a connecting ring (5733). When the driving ring (574) is in the first working condition or the second working condition, the connecting ring (5733) is respectively engaged with the annular grooves (5712) at different positions.

7. The pneumatic pipeline valve with adjustable opening degree according to claim 5, characterized in that, A handle (5734) is provided on the drive ring (574).

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