A unidirectional split powder plate valve that fits the annular surface

Abstract

The present invention provides a one-way split-type powder plate valve that matches an annular surface, comprising a driving rocker arm, a cylinder, a base and two valve plates, the valve plate being a semicircular structure, the valve plate being located on the inner side of the base, the base being an annular structure, the base being provided with a central axis running through it in a horizontal direction, the cylinder driving the rocker arm to control the opening and closing of the valve plate, the rocker arm and the valve plate being connected by a driving shaft transmission, two sleeves being welded on the lower end surface of the valve plate, the central axis passing through the sleeves, the upper end of the base being in the shape of an arc slope, the upper end surface of the valve plate being in the shape of an arc slope, the upper end surface of the valve plate being matched with the arc slope of the upper end of the base, and the lower end surface of the valve plate being a plane; the valve plate of the present invention is a split-type structure, and the valve plate can be flush with the circular cylinder after being closed, thereby solving the problem that traditional valves have a mixing dead angle on equipment such as mixers; the valve plate opens outwards after being opened, and will not touch structures in the cylinder such as mixer blades, thereby avoiding equipment damage and improving safety.

Description

Technical Field

[0001] The invention relates to the field of powder conveying plate valves, and in particular to a one-way split-type powder plate valve that matches an annular surface. Background Art

[0002] Valves that control the on / off switching of powder conveying can be divided into four categories according to their structural principles: butterfly valves (flap valves), ball valves, gate valves, and iris valves.

[0003] The above powder valves are all very mature products, but they also have a common problem: when they are installed on a curved surface, such as the side wall of a cylindrical tank, they all need to weld a section of extended pipe first, and then install the valve on the flat surface of the pipe end; Figure 1 As shown, reference numeral 11 is an arc-shaped side wall, 12 is an extended pipe, and 13 is a valve.

[0004] An extension pipe 12 is provided between the arc-shaped side wall 11 and the valve 13, and a certain volume of material will be accumulated in the extension pipe 12. If it is used as a storage silo, this structure is fine, and the material can be released by opening the valve; but if it is used as a horizontal stirring and mixing equipment, such as a paddle mixer or a ribbon mixer, the discharge port is opened at the bottom of the arc-shaped side wall of the mixing box, and the material in the extension pipe 12 cannot be touched by the stirring paddle, and the material here cannot be taken away for mixing, resulting in uneven material mixing. Moreover, when the stirring paddle sweeps over the extension pipe multiple times, the material here will be compacted, causing a bridging blockage problem at the discharge port. Summary of the invention

[0005] The object of the present invention is to provide a one-way split-type powder plate valve which is consistent with an annular surface.

[0006] In order to achieve the above object, the technical solution of the present invention is:

[0007] A one-way split-type powder plate valve that matches an annular surface, characterized in that it includes a driving rocker arm, a cylinder, a base and two valve plates, the valve plate is a semicircular structure, the valve plate is located on the inner side of the base, the base is an annular structure, the base is provided with a central axis running through it in the horizontal direction, the cylinder drives the rocker arm to control the opening and closing of the valve plate, the rocker arm and the valve plate are connected by a driving shaft, two sleeves are welded to the lower end surface of the valve plate, the central axis passes through the sleeve, the upper end of the base is in the shape of an arc slope, the upper end surface of the valve plate is in the shape of an arc slope, the upper end surface of the valve plate cooperates with the arc slope of the upper end of the base, and the lower end surface of the valve plate is a plane.

[0008] Further, first positioning round holes and second positioning round holes are respectively arranged at both ends of the rocker arm. The first positioning round hole is in fit connection with a pin shaft. Both ends of the pin shaft are respectively connected to a cylinder and the rocker arm. A keyway is arranged in the second positioning round hole.

[0009] Further, a convex key is arranged at one end of the drive shaft. The convex key is in fit connection with the keyway of the rocker arm. A vertical incision cut along the midline is arranged at the other end of the drive shaft.

[0010] Further, a vertical incision cut along the midline is arranged on one sleeve. The vertical incision of the sleeve is butted against the vertical incision of the drive shaft.

[0011] Further, an end cover is sleeved on the outer side of the drive shaft. A concave surface is arranged on the inner side of the end cover. A convex platform is arranged on the middle section of the drive shaft protruding outward. The convex platform is embedded in the concave surface.

[0012] Further, a beveled convex platform is arranged in the middle of the valve plate. The convex platform extends obliquely outward from top to bottom; a horizontal convex platform is arranged below the arc-shaped inclined surface at the upper end of the base. The horizontal convex platform limits the upward movement range of the beveled convex platform.

[0013] Further, a flange is arranged on each of the two sides in the middle of the base. The flanges are symmetrically arranged about the center of the base. The flanges are used to install rotating fittings.

[0014] The valve plate of the present invention has a split structure. After the valve plate is closed, it can be flush with the circular cylinder body, solving the problem of mixing dead angles in the traditional valve on the discharging equipment of the mixer; after the valve plate is opened, it opens outward and will not touch the structures inside the cylinder such as the mixer blades, avoiding equipment damage and improving safety. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of a prior art powder plate valve;

[0016] Figure 2 is a schematic disassembled structural diagram of the present invention;

[0017] Figure 3 is a schematic overall structural diagram of the present invention;

[0018] Figure 4 is Figure 3 a partial enlarged view of area A in

[0019] Figure 5 is a schematic structural diagram of the pin shaft of the present invention;

[0020] Figure 6 is a schematic structural diagram of the rocker arm of the present invention;

[0021] Figure 7Schematic structural diagram of the end cover of the present invention;

[0022] Figure 8 Front structural diagram of the drive shaft of the present invention;

[0023] Figure 9 Stereoscopic structural diagram of the drive shaft of the present invention;

[0024] Figure 10 Schematic structural diagram of one side of the base of the present invention;

[0025] Figure 11 Cross-sectional structural diagram of the base of the present invention;

[0026] Figure 12 Stereoscopic structural diagram of the base of the present invention;

[0027] Figure 13 Stereoscopic structural diagram of the valve plate of the present invention;

[0028] Figure 14 Combined structural diagram when the valve plate of the present invention is closed;

[0029] Figure 15 Schematic structural diagram of the central shaft of the present invention;

[0030] Figure 16 Structural diagram during the implementation of the present invention;

[0031] Figure 17 is Figure 16 Local enlarged view of area B in

[0032] Reference numerals:

[0033] 1 Cylinder, 2 Pin shaft, 3 Rocker arm, 4 End cover, 5 Drive shaft,

[0034] 6 Plastic bushing, 7 Base, 8 Valve plate, 9 Central shaft, 10 Flange,

[0035] 11 Arc-shaped side wall, 12 Extension pipe, 13 Valve,

[0036] 14 Mixing material box, 15 Side door moving assembly, 16 Agitator assembly, 17 Discharge port assembly,

[0037] 18 Fixed housing, 19 Moving housing, 20 Discharge elbow,

[0038] 31 First positioning round hole, 32 Second positioning round hole, 33 Keyway, 51 Boss, 52 Groove

[0039] 71 Horizontal boss, 81 Hypotenuse boss, 82 Sleeve. Detailed implementation manners

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0041] The present invention discloses a one-way split-type powder plate valve that matches the annular surface, such as Figure 2 and Figure 3 As shown, it includes a driving rocker arm 3, a cylinder 1, a base 7 and two valve plates 8. The valve plate 8 is a semicircular thick plate structure. The valve plate 8 is located on the inner side of the base 7. The base 7 is an annular structure. The upper end of the base 7 is an arc slope. The upper end of the base 7 is consistent with the shape of the arc-shaped material box. A horizontal boss is provided below the arc surface of the base 7. The horizontal boss is used to limit the position of the valve plate 8 when it is closed. There is a flange on each side of the middle of the base 7 passing through the center of the circle. The flange is used to install rotating accessories. The bottom end of the base 7 is a docking structure. The bottom end of the base 7 can be processed into a quick-clamp terminal or its flange according to actual needs. As shown in the figure, it is a quick-clamp terminal structure.

[0042] like Figure 3 As shown, the base 7 is provided with a central axis 9 running through it in the horizontal direction, the upper end surface of the valve plate 8 is in the shape of an arc slope, the upper end surface of the valve plate 8 cooperates with the arc slope of the upper end of the base 7, and the lower end surface of the valve plate 8 is a plane. The cylinder 1 drives the rocker arm 3 to control the opening and closing of the valve plate 8, and the rocker arm 3 and the valve plate 8 are connected by a driving shaft 5. Figure 13 As shown, two sleeves 82 are welded to the lower end surface of the valve plate 8, one of the sleeves 82 is provided with a vertical cut along the center line, the vertical cut of the sleeve 82 is butted with the vertical cut of the drive shaft 5, and the center shaft 9 is arranged through the sleeve 82.

[0043] like Figure 8 As shown, the drive shaft 5 is a hollow sleeve-shaped structure, one end of the drive shaft 5 is provided with a groove 52, the groove 52 is used to install the rocker arm 3, and the other end of the drive shaft 5 is provided with a vertical cut along the center line. The vertical cut of the drive shaft 5 is used to dock with the vertical cut of the sleeve to drive the valve plate 8 to rotate.

[0044] The outer side of the drive shaft 5 is sleeved with the end cover 4, such as Figure 7 As shown, a concave surface is provided on the inner side of the end cover 4, and a boss 51 is provided on the middle section of the drive shaft 5 in a horizontal direction and protrudes outward in a ring shape. The boss 51 is embedded in the concave surface of the end cover 4 for limiting and sealing. A plastic sleeve 6 is sleeved on the outer side of the drive shaft 5 to reduce the friction coefficient of the drive shaft 5 when it rotates.

[0045] like Figure 15As shown, the central axis 9 is used as a reference axis and passes through the sleeve 82 of the drive shaft 5 and the valve plate 8 at the same time, ensuring the concentricity of the two pairs of shafts / plates during rotation. One end of the shaft head of the central axis 9 has a thread, which is convenient for using two nuts to adjust the pressing degree of the assembly.

[0046] As Figure 6 shown, the rocker arm 3 is a swing arm structure with a positioning round hole at each end. The two ends of the rocker arm 3 are respectively provided with a first positioning round hole 31 and a second positioning round hole 32. The first positioning round hole 31 is connected with the pin shaft 2 in a matching manner. As Figure 2 and Figure 5 shown, the two ends of the pin shaft 2 are respectively connected to the cylinder 1 and the rocker arm 3. The second positioning round hole 32 is provided with a keyway 33, and the second positioning round hole 32 is connected with the drive shaft 5. As shown in the figure, the aperture of the second positioning round hole 32 is larger than that of the first positioning round hole 31.

[0047] As Figure 4 shown, a 45° bevel boss 81 is provided in the middle of the valve plate 8. The bevel boss 81 extends obliquely outward from top to bottom. A horizontal boss 71 is provided below the upper arc inclined surface of the base 7. The horizontal boss 71 limits the upward movement range of the bevel boss 81. As Figure 14 shown, when the two valve plates 8 are assembled face to face, they can be combined into a disc with an arc inclined surface on the upper surface.

[0048] As Figures 10 to 12 shown, two flanges 10 are provided on both sides of the middle of the base 7. The flanges 10 are symmetrically arranged about the center of the base 7, and the flanges 10 are used to install rotating accessories.

[0049] During implementation, the present invention is applied to a powder mixer. Refer to Figure 16 and Figure 17 , the powder mixer includes a mixing material box 14, a side door moving assembly 15, a stirrer assembly 16 and a discharge port assembly 17. The mixing material box 14 includes a fixed housing 18 and a moving housing 19, and the fixed housing 18 and the moving housing 19 are butted and locked face to face.

[0050] The discharge port assembly 17 includes a discharge elbow 20 and a pair of valve plates 8. The valve plates 8 are oppositely arranged in the discharge port at the lower end of the fixed housing 18. The valve plates 8 are turned outward to open. The two valve plates 8 are respectively driven to turn by a rocker arm 3, and each rocker arm 3 is respectively driven to rotate by a cylinder. The upper end of the discharge elbow 20 is communicated with the discharge port, and the lower end of the discharge elbow 20 is connected to the target storage bin.

[0051] When the valve plate 8 is closed, the upper surface of the valve plate 8 is flush with the inner surface of the mixing material box 14, and there will be no extended concave surface like a traditional valve after closing, resulting in the inability to stir and mix the materials inside; when the valve plate 8 is opened outward, the mixed materials are sent to the target storage bin through the discharge elbow 20.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A one-way split powder plate valve that fits the annular surface, characterized in that It includes a driving rocker arm, a cylinder, a base and two valve plates, the valve plate is a semicircular structure, the valve plate is located on the inner side of the base, the base is an annular structure, the base is provided with a central axis in the horizontal direction, the cylinder drives the rocker arm to control the opening and closing of the valve plate, the rocker arm and the valve plate are connected by a driving shaft, two sleeves are welded on the lower end surface of the valve plate, one of the sleeves is provided with a vertical cut along the center line, the vertical cut of the sleeve is butted with the vertical cut of the driving shaft, the central axis passes through the sleeve, the upper end of the base is in the shape of an arc slope, the upper end surface of the valve plate is in the shape of an arc slope, the upper end surface of the valve plate is in the shape of an arc The bevel is matched, and the lower end surface of the valve plate is a plane. The middle part of the valve plate is provided with a 45° beveled boss, and the beveled boss extends obliquely outward from top to bottom. The upper end of the base is consistent with the shape of the arc-shaped material box, and a horizontal boss is provided below the arc surface of the upper end of the base. The horizontal boss is used to limit the position when the valve plate is closed, and the horizontal boss limits the upward movement range of the beveled boss. When the two valve plates are mounted in pairs, they are merged into a disc with an arc-shaped beveled surface on the upper surface. The middle part of the base passes through a flange on each side of the center of the circle, and the flanges are symmetrically arranged about the center of the base. The flange is installed with a rotating accessory, and the bottom end of the base is a quick-clamp terminal.

2. The one-way split powder plate valve that fits the annular surface according to claim 1, characterized in that The two ends of the rocker arm are respectively provided with a first positioning circular hole and a second positioning circular hole, the first positioning circular hole is connected with a pin shaft, the two ends of the pin shaft are respectively connected to the cylinder and the rocker arm, and the second positioning circular hole is provided with a keyway.

3. The one-way split powder plate valve that fits with the annular surface according to claim 2, characterized in that One end of the drive shaft is provided with a convex key, and the convex key is matched and connected with the keyway of the rocker arm. The other end of the drive shaft is provided with a vertical incision cut along the center line.

4. The one-way split powder plate valve that fits with the annular surface according to claim 3, wherein The outer side of the driving shaft is sleeved with an end cover, the inner side of the end cover is provided with a concave surface, and the middle section of the driving shaft is provided with a boss protruding outwards, and the boss is embedded in the concave surface.

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