A swing valve with adjustable opening and control method thereof

Abstract

The present invention discloses a swing valve with adjustable opening, comprising a valve core, a valve body and a driving device; the valve core comprises a sealing plate, a support plate, a ball mounting frame and a driving support frame; the sealing plate and the support plate are arranged on the two end surfaces of the driving support frame, and the ball mounting frame is arranged at a position between the sealing plate and the support plate; a ball assembly is arranged on the ball mounting frame, and ball grooves matching the ball assembly are arranged on the inner surfaces of the sealing plate and the support plate, and the driving device comprises a driving cylinder, a gear and a rack. In the present invention, the ball assembly in the ball mounting frame is pushed to move on the sealing plate and the support plate by the driving device, so that the ball assembly rolls out or resets from the ball groove, thereby completing the opening or closing of the valve, reducing the vibration of the valve opening or closing, and solving the problem of excessive vibration caused by the traditional swing valve directly pushing the valve core.

Description

Technical Field

[0001] The invention belongs to the technical field of swing valves, and in particular relates to a swing valve with adjustable opening and a control method thereof. Background Art

[0002] The valve is a control component in the fluid conveying system, with functions such as cut-off, regulation, diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. There are many types of valves, and the structures and solutions adopted in different working environments and different conveying media have their own characteristics. The swing valve is an important component in the dense phase positive pressure pneumatic conveying system.

[0003] The swing valve usually includes a valve body, a valve core, a cylinder, a rotating shaft, a swing arm and a valve plate. In the prior art, the cylinder directly drives the swing arm to rotate, and the swing arm drives the valve core to swing, so as to open or close the valve core. This arrangement will result in a large space required for the cavity, valve and cylinder, making the overall structure not compact. Summary of the invention

[0004] The object of the present invention is to provide a swing valve with adjustable opening and a control method thereof, so as to solve the problem in the prior art mentioned in the background art that the swing valve requires a large space as a whole.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A swing valve with adjustable opening comprises a valve core, a valve body and a driving device; wherein a valve opening is arranged on the valve body, the valve core is arranged inside the valve body, the driving device is arranged outside the valve body, and the driving device is used to drive the valve core to move;

[0007] The valve core comprises a sealing plate, a supporting plate, a ball mounting frame and a driving supporting frame; wherein the sealing plate and the supporting plate are arranged on both sides of the driving supporting frame, and the ball mounting frame is arranged between the sealing plate and the supporting plate; a ball assembly is arranged on the ball mounting frame, and ball grooves matching with the ball assembly are arranged on the inner surfaces of the sealing plate and the supporting plate;

[0008] The driving device includes a driving cylinder, a gear and a rack, wherein the driving cylinder is fixedly connected to the rack, and the rack is meshed with the gear; the gear is fixedly connected to a rotating shaft arranged on the valve body; a pushing block is also fixedly arranged at the end of the rotating shaft, and a pushing rod is rotatably connected to the end of the pushing block, and the pushing rod is used to push the ball mounting frame to move; the end of the pushing rod is hinged to the ball mounting frame.

[0009] According to the above technical solution, a reset assembly is also provided in the valve core; the reset assembly includes an inner sleeve and an outer sleeve, the inner sleeve is fixedly arranged on the sealing plate by bolts, the outer sleeve is sleeved on the outside of the inner sleeve, and one end of the outer sleeve is fixedly connected to the support plate, and a spring is also provided between the outer sleeve and the inner sleeve, and the sealing plate and the support plate are connected through the reset assembly.

[0010] According to the above technical solution, a sleeve is further provided on the outside of the rack, and the sleeve is used to protect the rack from dust.

[0011] According to the above technical solution, one end of the rotating shaft is arranged inside the valve body, and the other end of the rotating shaft extends to the outside of the valve body, and the rotating shaft and the valve body are rotatably sealed.

[0012] According to the above technical solution, the end of the push rod is hinged to the ball mounting bracket.

[0013] According to the above technical solution, a limiting boss is further provided inside the driving support frame, and the limiting boss is used to limit the push rod.

[0014] According to the above technical solution, mounting grooves are provided on both the sealing plate and the supporting plate, and the mounting grooves are used to install the sealing rings.

[0015] According to the above technical solution, the valve body includes a first valve body and a second valve body, and the first valve body and the second valve body are detachably connected.

[0016] According to the above technical solution, 10-14 sets of ball assemblies are arranged on the ball mounting frame, and the 10-14 sets of ball assemblies are evenly arranged on the ball mounting frame.

[0017] A control method for a swing valve with adjustable opening, comprising a swing valve, wherein the specific control method comprises:

[0018] Step S1: Turn on the driving cylinder, the driving cylinder drives the rack to move, the rack drives the gear to rotate; the gear drives the rotating shaft to rotate,

[0019] Step S2: the rotating shaft drives the pushing block to rotate, the pushing block drives the pushing rod to rotate, and the pushing rod drives the ball mounting frame to move;

[0020] Step S3: the ball mounting frame drives the ball assembly to move;

[0021] Step S4: The ball assembly moves to lift or lower the sealing plate and the support plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the present invention, a valve core, a valve body and a driving device are provided; the valve core includes a sealing plate, a support plate, a ball mounting frame and a driving support frame, a ball assembly is provided on the ball mounting frame, and a ball groove is provided on the sealing plate and the support plate. The ball assembly in the ball mounting frame is pushed by the driving device to move on the sealing plate and the support plate, so that the ball assembly rolls out of the ball groove or resets (the ball returns to the ball groove), thereby completing the opening or closing of the valve, reducing the vibration of the valve opening or closing, and solving the problem of excessive vibration caused by the traditional swing valve directly pushing the valve core. In addition, by using a gear rack to realize the opening or closing of the swing valve, it is convenient to control the valve opening angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the driving device of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0028] Figure 5 This is one of the schematic diagrams of the valve body structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the valve body closing of the present invention;

[0030] Figure 7 This is the second schematic diagram of the valve body structure of the present invention;

[0031] Figure 8 Opening schematic diagram for the present invention;

[0032] Fig. 9 This is a schematic diagram of the partially enlarged structure of location A of the present invention;

[0033] Fig.10 It is a rear view structural schematic diagram of the present invention.

[0034] Markings in the figure: 100-valve body, 101-first valve body, 102-second valve body, 103-valve opening, 200-sealing plate, 300-support plate, 400-ball mounting frame, 500-driving support frame, 600-ball assembly, 700-ball groove, 800-driving cylinder, 900-gear, 110-rack, 111-rotating shaft, 112-pushing block, 113-pushing rod, 114-inner sleeve, 115-outer sleeve, 116-spring, 117-sleeve, 118-limiting boss, 119-mounting groove, 120-sealing ring, 121-sliding groove, 122-guide wheel. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] like Figure 1 , Figure 2 , Figure 3 and Fig.10 As shown, a swing valve with adjustable opening includes a valve core, a valve body 100 and a driving device; wherein a valve opening 103 is provided on the valve body 100, the valve core is provided inside the valve body 100, and the driving device is provided outside the valve body 100, and the driving device is used to drive the valve core to move;

[0038] The valve core includes a sealing plate 200, a support plate 300, a ball mounting frame 400 and a driving support frame 500; wherein the sealing plate 200 and the support plate 300 are arranged on both sides of the driving support frame 500, and the ball mounting frame 400 is arranged between the sealing plate 200 and the support plate 300; a ball assembly 600 is arranged on the ball mounting frame 400, and a ball groove 700 matching with the ball assembly 600 is arranged on the inner surface of the sealing plate 200 and the support plate 300;

[0039] like Figure 3 As shown, the driving device includes a driving cylinder 800, a gear 900 and a rack 110, wherein the driving cylinder 800 is fixedly connected to the rack 110, and the rack 110 is meshed with the gear 900; the gear 900 is fixedly connected to a rotating shaft 111 arranged on the valve body 100; a pushing block 112 is also fixedly arranged at the end of the rotating shaft 111, and a pushing rod 113 is rotatably connected to the end of the pushing block 112, and the pushing rod 113 is used to push the ball mounting frame 400 to move; the end of the pushing rod 113 is hinged to the ball mounting frame 400.

[0040] Furthermore, the driving cylinder 800 uses a servo cylinder, which can control the opening degree of the valve to reduce the pumping speed of the vacuum pump connected to the front stage, thereby adjusting the vacuum degree in the process chamber.

[0041] A control method for a swing valve with adjustable opening, comprising a swing valve, wherein the specific control method comprises:

[0042] Step S1: Turn on the driving cylinder 800, the driving cylinder 800 drives the rack 110 to move, the rack 110 drives the gear 900 to rotate; the gear 900 drives the rotating shaft 111 to rotate,

[0043] Step S2: the rotating shaft 111 drives the pushing block 112 to rotate, the pushing block 112 drives the pushing rod 113 to rotate, and the pushing rod 113 drives the ball mounting frame 400 to move;

[0044] Step S3: The ball mounting frame 400 drives the ball assembly 600 to move;

[0045] Step S4: the ball assembly 600 moves to lift or lower the sealing plate 200 and the supporting plate 300 .

[0046] In the present invention, a valve core, a valve body 100 and a driving device are provided; the valve core includes a sealing plate 200, a support plate 300, a ball mounting frame 400 and a driving support frame 500, a ball assembly 600 is provided on the ball mounting frame 400, and a ball groove 700 is provided on the sealing plate 200 and the support plate 300. The ball assembly 600 in the ball mounting frame 400 is pushed by the driving device to move on the sealing plate 200 and the support plate 300, so that the ball assembly 600 rolls out or resets from the ball groove 700, thereby completing the opening or closing of the valve, reducing the vibration of the valve opening or closing, and solving the problem of excessive vibration caused by the traditional swing valve directly pushing the valve core. In addition, the swing valve is opened or closed by using the gear 900 and the rack 110, which facilitates the control of the valve opening angle.

[0047] Embodiment 2

[0048] This embodiment is a further refinement of the first embodiment. A reset assembly is also provided in the valve core; the reset assembly includes an inner sleeve 114 and an outer sleeve 115, the inner sleeve 114 is fixedly provided on the sealing plate 200 by bolts, the outer sleeve 115 is sleeved on the outside of the inner sleeve 114, and one end of the outer sleeve 115 is fixedly connected to the support plate 300, a spring 116 is also provided between the outer sleeve 115 and the inner sleeve 114, and the sealing plate 200 and the support plate 300 are connected by the reset assembly.

[0049] A sleeve 117 is further provided on the outside of the rack 110 , and the sleeve 117 is used to protect the rack 110 from dust.

[0050] One end of the rotating shaft 111 is disposed inside the valve body 100 , and the other end of the rotating shaft 111 extends to the outside of the valve body 100 . The rotating shaft 111 and the valve body 100 are rotationally sealed.

[0051] The end of the push rod 113 is hinged to the ball mounting bracket 400 .

[0052] A limiting boss 118 is further provided inside the driving support frame 500 , and the limiting boss 118 is used to limit the push rod 113 .

[0053] The sealing plate 200 and the supporting plate 300 are both provided with mounting grooves 119 , and the mounting grooves 119 are used for mounting the sealing ring 120 .

[0054] The valve body 100 includes a first valve body 101 and a second valve body 102 , and the first valve body 101 and the second valve body 102 are detachably connected.

[0055] By configuring the valve body 100 as the first valve body 101 and the second valve body 102 , it is easy to maintain, and the valve can be maintained without removing the connected pipeline or process chamber.

[0056] 10-14 sets of ball assemblies 600 are arranged on the ball mounting frame 400 , and 10-14 sets of ball assemblies 600 are evenly arranged on the ball mounting frame 400 .

[0057] Furthermore, two balls are arranged inside a set of ball assembly 600, and the two balls are arranged at the two ends of the ball assembly 600, and the two balls are in contact with the sealing plate 200 and the support plate 300 respectively. When the push rod 113 pushes the ball mounting frame 400 to move, the balls can not only push the sealing plate 200 and the support plate 300, but also reduce the friction between the ball mounting frame 400 and the sealing plate 200 and the support plate 300 during the movement, so as to make the operation smoother and reduce the vibration of the valve.

[0058] Furthermore, a sliding groove 121 is provided inside the driving support frame 500, and a guide wheel 122 cooperating with the sliding groove 121 is provided on the ball mounting frame 400. Through the cooperation between the guide wheel 122 and the sliding groove 121, the ball mounting frame 400 and the driving support frame 500 are slidably connected.

[0059] Connecting flanges are also provided on both sides of the valve body 100 .

[0060] Furthermore, two sets of connecting flanges are provided, and the two sets of connecting flanges are respectively provided on both sides of the valve body 100 , and the two sets of connecting flanges are respectively communicated with the valve opening 103 .

[0061] The working principle of the present invention is as follows: when in use, the driving cylinder 800 is turned on, the driving cylinder 800 drives the rack 110 to move, the rack 110 drives the gear 900 to rotate, the gear 900 drives the rotating shaft 111 to rotate, thereby driving the pushing block 112 arranged at the end of the rotating shaft 111 to rotate, because the pushing block 112 is rotatably connected to one end of the pushing rod 113, and the other end of the pushing rod 113 is hinged to the ball mounting frame 400, thereby driving the ball mounting frame 400 to move, and through the movement of the ball mounting frame 400, the ball assembly 600 is driven to move left and right, thereby completing the sealing or opening of the valve opening 103, thereby completing the opening or closing of the valve.

[0062] Embodiment 3

[0063] This embodiment provides a specific implementation method for opening a valve. Figure 7 , Figure 8 and Fig. 9 As shown, when the valve is opened, first, the driving cylinder 800 is turned on, and the driving cylinder 800 drives the rack 110 to move outward, thereby driving the gear 900 to rotate counterclockwise, and the gear 900 drives the rotating shaft 111 and the pushing block 112 to rotate counterclockwise together, and drives the pushing rod 113 to move through the pushing block 112, so that the pushing rod 113 drives the ball mounting frame 400 to move to the left, and pushes the ball assembly 600 inside the ball mounting frame 400 back into the ball groove 700, so that the sealing plate 200 and the support plate 300 are released from support, and the sealing plate 200 and the support plate 300 are reset under the action of the reset assembly, so that the valve is opened.

[0064] Embodiment 4

[0065] This embodiment provides a specific implementation method for closing the valve. Figure 5 and Figure 6As shown, when the valve is closed, the driving cylinder 800 is opened first, and the driving cylinder 800 drives the rack 110 to move inward, thereby driving the gear 900 to rotate clockwise, and the gear 900 drives the rotating shaft 111 and the pushing block 112 to rotate clockwise together, and drives the pushing rod 113 to rotate together through the pushing block 112, thereby driving the ball mounting frame 400 to move rightward, and the ball assembly 600 inside the ball mounting frame 400 is pushed out from the ball groove 700. Since the ball groove 700 is tilted inward, the depth of the left end of the ball groove 700 is greater than the depth of the right end. When the ball assembly 600 moves to the right, due to the narrowing of the height between the sealing plate 200 and the support plate 300, the ball assembly 600 will push the sealing plate 200 and the support plate 300 to move to both ends, so that the sealing plate 200 and the support plate 300 are respectively abutted against the valve body 100, and the valve body 100 is closed. Furthermore, during the movement of the sealing plate 200 and the support plate 300, the sealing ring 120 is compressed to seal the sealing plate 200 and the support plate 300 with the valve body 100. Furthermore, during the movement of the sealing plate 200 and the support plate 300, the inner sleeve 114 and the outer sleeve 115 of the reset assembly are stretched toward both ends.

[0066] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0067] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A swing valve with adjustable opening, characterized in that: The invention comprises a valve core, a valve body (100) and a driving device; wherein a valve opening (103) is arranged on the valve body (100), the valve core is arranged inside the valve body (100), and the driving device is arranged outside the valve body (100), and the driving device is used to drive the valve core to move; The valve core comprises a sealing plate (200), a support plate (300), a ball mounting frame (400) and a driving support frame (500); wherein the sealing plate (200) and the support plate (300) are arranged on both sides of the driving support frame (500), and the ball mounting frame (400) is arranged between the sealing plate (200) and the support plate (300); a ball assembly (600) is arranged on the ball mounting frame (400), and a ball groove (700) matching with the ball assembly (600) is arranged on the inner surfaces of the sealing plate (200) and the support plate (300); The driving device comprises a driving cylinder (800), a gear (900) and a rack (110), wherein the driving cylinder (800) is fixedly connected to the rack (110), and the rack (110) is meshed with the gear (900); the gear (900) is fixedly connected to a rotating shaft (111) arranged on the valve body (100); a pushing block (112) is also fixedly arranged at the end of the rotating shaft (111), and a pushing rod (113) is rotatably connected to the end of the pushing block (112), and the pushing rod (113) is used to push the ball mounting frame (400) to move; and the end of the pushing rod (113) is hinged to the ball mounting frame (400).

2. The swing valve with adjustable opening according to claim 1, characterized in that: A reset assembly is also provided in the valve core; the reset assembly comprises an inner sleeve (114) and an outer sleeve (115); the inner sleeve (114) is fixedly provided on the sealing plate (200) by means of bolts; the outer sleeve (115) is sleeved on the outside of the inner sleeve (114); one end of the outer sleeve (115) is fixedly connected to the support plate (300); a spring (116) is further provided between the outer sleeve (115) and the inner sleeve (114); and the sealing plate (200) and the support plate (300) are connected via the reset assembly.

3. The swing valve with adjustable opening according to claim 1, characterized in that: A sleeve (117) is also provided outside the rack (110), and the sleeve (117) is used to provide dust-proof protection for the rack (110).

4. The swing valve with adjustable opening according to claim 1, characterized in that: One end of the rotating shaft (111) is arranged inside the valve body (100), and the other end of the rotating shaft (111) extends to the outside of the valve body (100), and the rotating shaft (111) and the valve body (100) are rotationally sealed.

5. The swing valve with adjustable opening according to claim 4, characterized in that: The end of the push rod (113) is hinged to the ball mounting bracket (400).

6. The swing valve with adjustable opening according to claim 1, characterized in that: A limiting boss (118) is also provided inside the driving support frame (500), and the limiting boss (118) is used to limit the push rod (113).

7. The swing valve with adjustable opening according to claim 1, characterized in that: The sealing plate (200) and the supporting plate (300) are both provided with mounting grooves (119), and the mounting grooves (119) are used for mounting the sealing ring (120).

8. The swing valve with adjustable opening according to claim 1, characterized in that: The valve body (100) comprises a first valve body (101) and a second valve body (102), and the first valve body (101) and the second valve body (102) are detachably connected.

9. The swing valve with adjustable opening according to claim 1, characterized in that: 10-14 sets of ball assemblies (600) are arranged on the ball mounting frame (400), and the 10-14 sets of ball assemblies (600) are evenly arranged on the ball mounting frame (400).

10. A method for controlling a swing valve with adjustable opening, characterized in that: The invention comprises a swing valve, wherein the swing valve is any one of claims 1 to 9; and the specific control method comprises: Step S1: Turn on the driving cylinder (800), the driving cylinder (800) drives the rack (110) to move, the rack (110) drives the gear (900) to rotate; the gear (900) drives the rotating shaft (111) to rotate, Step S2: the rotating shaft (111) drives the pushing block (112) to rotate, the pushing block (112) drives the pushing rod (113) to rotate, and the pushing rod (113) drives the ball mounting frame (400) to move; Step S3: the ball mounting frame (400) drives the ball assembly (600) to move; Step S4: The ball assembly (600) moves to lift or lower the sealing plate (200) and the support plate (300).

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