Split type material transfer valve

Abstract

The split type material transfer valve comprises a valve a, a valve b, a pneumatic actuator and a guide sleeve assembly, the guide sleeve assembly comprises two sets of guide sleeves and positioning columns which are symmetrically arranged, the guide sleeves are rotationally arranged on the valve a, the positioning columns and the guide sleeves are in positioning insertion fit and connected to the valve b, and the pneumatic actuator is arranged on the valve b. The positioning column is provided with a limiting assembly, the limiting assembly comprises a plurality of inserting flanges and an elastic piece, the inserting flanges are arranged on the guide sleeve in an inserting mode, the elastic piece is arranged between the guide sleeve and the positioning column in a clamping mode, and the guide sleeve is provided with a limiting sliding groove; according to the split type material transfer valve, the size of the whole valve is reduced, meanwhile, a handle-free type axial fixing mode is adopted, and the stability and safety of valve fixing are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a split material transfer valve. Background Art

[0002] When producing highly active products (such as hormones and cytotoxic products), the new version of GMP requires the use of special equipment to ensure the airtightness of material transfer for the protection of operators. Therefore, split transfer valves are widely used because they can achieve good airtightness during the entire process of docking and unloading of material barrels and transferring of material barrels after unloading. However, in the prior art, when the split valve AB valve is docked, a hoist is often used to dock it in the air and press it down to form radial compression. After the docking is completed, the AB valve is axially locked and fixed by turning the handle. The addition of a handle makes the overall volume of the split valve too large, and the axial limit method of the handle is loose. Utility Model Content

[0003] In view of the above problems, the utility model provides a split material transfer valve.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split material transfer valve, including valve a, valve b, pneumatic actuator and guide sleeve assembly, the guide sleeve assembly includes two groups of symmetrically arranged guide sleeves and positioning columns, the guide sleeve is rotatably arranged on valve a, the positioning column and the guide sleeve form a positioning plug-in fit and are connected to valve b, a limiting assembly is installed on the positioning column, the limiting assembly includes a plurality of plug-in flanges and elastic members, the plug-in flanges are plug-inly arranged on the guide sleeve, the elastic member is clamped between the guide sleeve and the positioning column, a limiting slide groove is provided on the guide sleeve, and the guide sleeve is limitedly engaged in the limiting slide groove by squeezing the elastic member and rotating counterclockwise.

[0005] Preferably, the b valve is provided with a first fixing bracket, the first fixing bracket is provided with a first mounting hole, one end of the positioning column is interference fit in the first mounting hole, the a valve is provided with a corresponding second fixing bracket, the second fixing bracket is provided with a second mounting hole, the guide sleeve is provided with a telescopic part corresponding to the second mounting hole, and the telescopic part is movably inserted in the second mounting hole.

[0006] Preferably, a limit baffle is provided on the side of the second mounting hole away from the telescopic part, a limit plate and a screw sleeve are provided on the limit baffle, a screw hole adapted to the screw sleeve is provided on the telescopic part, the screw sleeve is threadedly connected in the screw hole, and the limit plate is fixedly connected to one side of the screw sleeve and forms an abutment with the second fixed bracket.

[0007] Preferably, the limiting slide groove includes a plug-in opening, a sliding opening and a limiting opening, the plug-in flange is plugged into the plug-in opening, the plug-in opening is opened in a vertical state and extends toward one side of the second fixed bracket, one end of the sliding opening is connected to the plug-in opening and extends around the axis, and one end of the limiting opening is connected to the sliding opening and extends toward one side of the first fixed bracket.

[0008] Preferably, a groove is provided on one side of the first mounting hole, and an abutting inclined surface is provided at the opening of the guide sleeve facing the groove.

[0009] Preferably, the first fixing bracket is provided with a plurality of first positioning holes, the b valve is provided with corresponding second positioning holes, and the first fixing bracket is provided with bolts, which pass through the first positioning holes in sequence and are tightened in the second positioning holes.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: during installation, the positioning column on the b valve is docked with the guide sleeve of the a valve through the lifting machine, and the plug-in flange is plugged into the plug-in opening, and the abutting inclined surfaces of the elastic member and the guide sleeve abut against each other to form a contraction. When the lifting machine presses the b valve to the specified position, the guide sleeve is continued to be pressed toward the elastic member and then rotated counterclockwise, so that the plug-in flange slides through the sliding opening. When it slides to the side of the limit opening, the guide sleeve is released. At this time, the elastic member releases the contraction pressure, so that the guide sleeve moves downward and the limit opening is clamped on the plug-in flange, reducing the volume of the overall valve. At the same time, a handle-free axial fixing method is adopted, which greatly improves the stability and safety of the valve fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0012] Figure 2 It is a structural exploded diagram of the guide sleeve assembly of the utility model;

[0013] Figure 3 This is an exploded view of the connection structure between the first fixed bracket and the B valve of the utility model.

[0014] In the figure: 1. valve a; 2. valve b; 3. pneumatic actuator; 4. guide sleeve assembly; 5. guide sleeve; 8. positioning column; 9. limit assembly; 10. plug-in flange; 11. elastic member; 12. limit slide groove; 13. first fixed bracket; 14. first mounting hole; 15. second fixed bracket; 16. second mounting hole; 17. telescopic part; 18. limit baffle; 19. screw sleeve; 20. limit plate; 21. screw hole; 23. plug-in opening; 24. sliding opening; 25. limit opening; 26. groove; 27. abutment slope; 28. first positioning hole; 29. ​​second positioning hole; 30. bolt. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Example: As attached Figures 1 to 3 A split material transfer valve shown in the figure includes a valve 1, a valve b 2, a pneumatic actuator 3 and a guide sleeve assembly 4, the guide sleeve assembly 4 includes two groups of symmetrically arranged guide sleeves 5 and positioning columns 8, the guide sleeve 5 is rotatably arranged on the a valve 1, the positioning column 8 forms a positioning plug-in fit with the guide sleeve 5 and is connected to the b valve 2, a limit assembly 9 is installed on the positioning column 8, the limit assembly 9 includes a plurality of plug-in flanges 10 (specifically, two are arranged in a symmetrical state, and are an integrated structure with the positioning column 8) and an elastic member 11 (specifically a pressure spring), the plug-in flange 10 is plug-inly arranged on the guide sleeve 5, the elastic member 11 is tightened between the guide sleeve 5 and the positioning column 8, a limit slide groove 12 is provided on the guide sleeve 5, and the guide sleeve 5 squeezes the elastic member 11 and rotates counterclockwise so that the plug-in flange 10 is limitedly clamped in the limit slide groove 12.

[0017] As attached Figure 2 As shown, the b valve 2 is provided with a first fixing bracket 13, and a first mounting hole 14 is opened on the first fixing bracket 13. One end of the positioning column 8 is arranged in the first mounting hole 14 by interference fit. The a valve 1 is provided with a corresponding second fixing bracket 15, and a second mounting hole 16 is opened on the second fixing bracket 15. The guide sleeve 5 is provided with a telescopic portion 17 (an integrated structure) corresponding to the second mounting hole 16. The telescopic portion 17 is movably inserted in the second mounting hole 16. The positioning column 8 is arranged in the first mounting hole 14 by an interference fit structure, which can reduce the pressure at the connection between the positioning column 8 and the first mounting hole 14. The integrated structure is prone to the problem of fracture at the connection. The guide sleeve 5 forms an upper and lower active fit with the second mounting hole 16 through the telescopic portion 17, and the overall structure is convenient for processing and installation.

[0018] As attached Figure 2As shown, a limiting baffle 18 is provided on the side of the second mounting hole 16 away from the telescopic portion 17, and a limiting plate 20 and a screw sleeve 19 (an integrated structure, and the diameter of the limiting plate 20 is larger than the aperture of the second mounting hole 16) are provided on the limiting baffle 18. A screw hole 21 adapted to the screw sleeve 19 is provided on the telescopic portion 17, and the screw sleeve 19 is threadedly connected in the screw hole 21. The limiting plate 20 is fixedly connected to one side of the screw sleeve 19 and forms an abutment with the second fixed bracket 15. The limiting baffle 18 can prevent the guide sleeve 5 from falling off, and at the same time, one side is abutted and limited. The threaded connection method facilitates the installation and disassembly of the guide sleeve 5 in the later stage.

[0019] As attached Figure 2 As shown, the limiting slide groove 12 includes a plug-in opening 23, a sliding opening 24 and a limiting opening 25, the plug-in flange 10 is plugged into the plug-in opening 23, the plug-in opening 23 is opened in a vertical state and extends toward the second fixed bracket 15, one end of the sliding opening 24 is connected to the plug-in opening 23 and extends around the axis, one end of the limiting opening 25 is connected to the sliding opening 24 and extends toward the first fixed bracket 13, the plug-in opening 23 is used for plug-in calibration, and at the same time, after the plug-in flange 10 enters, one end of the elastic member 11 is pressed against the plug-in flange 10 through the plug-in opening 23 to separate it from being pressed against the guide sleeve 5, the sliding opening 24 and the limiting opening 25 are used to change the limiting position of the plug-in flange 10, and the plug-in flange 10 is clamped in the limiting opening 25 by controlling the contraction operation of the elastic member 11, thereby achieving the effect of axial positioning.

[0020] As attached Figure 2 As shown, a groove 26 is provided on one side of the first mounting hole 14, and an abutment slope 27 is provided at the opening of the guide sleeve 5 facing the groove 26 to prevent the lifting machine from pressing the valve b 2 down with excessive pressure, causing displacement of the elastic member 11, and to stabilize and support the operating stroke of the elastic member 11.

[0021] As attached Figure 3 As shown, a plurality of first positioning holes 28 (specifically, two) are provided on the first fixing bracket 13, and a corresponding second positioning hole 29 is provided on the b valve 2. Bolts 30 (corresponding to the number of the first positioning holes 28) are provided on the first fixing bracket 13. The bolts 30 pass through the first positioning holes 28 in sequence and are tightened in the second positioning holes 29 (the second fixing bracket 15 is installed using the same structure). Different from the processing method using an integrated structure, the split bolt 30 connection facilitates the disassembly and installation of the first fixing bracket 13 in the later stage.

[0022] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A split material transfer valve, comprising valve a (1), valve b (2), a pneumatic actuator (3) and a guide sleeve assembly (4), characterized in that: The guide sleeve assembly (4) comprises two groups of symmetrically arranged guide sleeves (5) and positioning columns (8); the guide sleeve (5) is rotatably arranged on the valve a (1); the positioning column (8) and the guide sleeve (5) form a positioning plug-in fit and are connected to the valve b (2); a limit assembly (9) is installed on the positioning column (8); the limit assembly (9) comprises a plurality of plug-in flanges (10) and an elastic member (11); the plug-in flanges (10) are plug-in arranged on the guide sleeve (5); the elastic member (11) is tightly arranged between the guide sleeve (5) and the positioning column (8); a limit sliding groove (12) is provided on the guide sleeve (5); the guide sleeve (5) is pressed against the elastic member (11) and rotated counterclockwise so that the plug-in flange (10) is limitedly engaged in the limit sliding groove (12).

2. A split material transfer valve according to claim 1, characterized in that: The b valve (2) is provided with a first fixing bracket (13), the first fixing bracket (13) is provided with a first mounting hole (14), one end of the positioning column (8) is interference fit in the first mounting hole (14), the a valve (1) is provided with a corresponding second fixing bracket (15), the second fixing bracket (15) is provided with a second mounting hole (16), the guide sleeve (5) is provided with a telescopic portion (17) corresponding to the second mounting hole (16), and the telescopic portion (17) is movably inserted in the second mounting hole (16).

3. A split material transfer valve according to claim 2, characterized in that: A limit baffle (18) is arranged on the side of the second mounting hole (16) away from the telescopic portion (17); a limit plate (20) and a screw sleeve (19) are arranged on the limit baffle (18); a screw hole (21) adapted to the screw sleeve (19) is opened on the telescopic portion (17); the screw sleeve (19) is threadedly connected in the screw hole (21); the limit plate (20) is fixedly connected to one side of the screw sleeve (19) and abuts against the second fixed bracket (15).

4. A split material transfer valve according to claim 1, characterized in that: The limiting slide groove (12) comprises a plug-in opening (23), a sliding opening (24) and a limiting opening (25); the plug-in flange (10) is plugged into the plug-in opening (23); the plug-in opening (23) is vertically opened and extends toward one side of the second fixed bracket (15); one end of the sliding opening (24) is connected to the plug-in opening (23) and extends around the axis; one end of the limiting opening (25) is connected to the sliding opening (24) and extends toward one side of the first fixed bracket (13).

5. A split material transfer valve according to claim 2, characterized in that: A groove (26) is provided on one side of the first mounting hole (14); an abutting inclined surface (27) is provided at the opening of the guide sleeve (5) facing the groove (26); one end of the elastic member (11) is embedded in the groove (26) and the other end is tightly abutted against the abutting inclined surface (27).

6. A split material transfer valve according to claim 2, characterized in that: The first fixing bracket (13) is provided with a plurality of first positioning holes (28), the b valve (2) is provided with corresponding second positioning holes (29), the first fixing bracket (13) is provided with bolts (30), the bolts (30) pass through the first positioning holes (28) in sequence and are tightened in the second positioning holes (29).

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