Separable three-way swing valve

Abstract

The utility model relates to the technical field of valves, in particular to a separable three-way swing valve which comprises an upper valve seat, a lower valve body and a two-way connector, the bottom of the upper valve seat is detachably connected with the lower valve body downwards through a bolt, a sealing valve plate is arranged in an inner cavity of the connecting position of the upper valve seat and the lower valve body, and a spring assembly is arranged on the back of the sealing valve plate. The top of the upper valve seat is detachably connected with a two-way through a bolt upwards, an electric actuator is fixed to the upper valve seat and connected with a connecting shaft box, the output end of the connecting shaft box is connected with a thin-shaft rocker arm through a rotating shaft, the thin-shaft rocker arm is connected with a thick-shaft rocker arm through a connecting rod, and the connecting rod is hinged to the tail end of the thin-shaft rocker arm and the tail end of the thick-shaft rocker arm. The thick-shaft rocker is connected with a swing arm through a rotating shaft. The upper valve seat can be separated from the two-way connection, so that the maintenance cost and the maintenance time can be saved, and the availability and the maintenance efficiency of equipment are improved; the upper valve seat can be customized in a personalized mode according to customer requirements, and replaceability is achieved.

Description

[Technical field]

[0001] The utility model relates to the technical field of valves, and more specifically to a detachable three-way swing valve. [Background technology]

[0002] The swing valve is an important component in the dense phase positive pressure pneumatic conveying system. It is generally used in thermal power plants, metallurgy, medicine, chemical industry and other industries to convey various types of dust, particles and semi-fluid media. The swing valve realizes the opening and closing of the valve by rotating the valve plate swing arm driven by the rotating shaft.

[0003] An existing electric three-way swing valve, with announcement number CN 215334628 U, includes an upper valve seat, a lower valve body, an electric actuator, a coupling box, a first rocker arm, a connecting rod, a rocker arm, and a valve plate. A lower valve body is fixed at the bottom of the upper valve seat, and the interior of the assembly formed by the upper valve seat and the lower valve body is a cavity. A feed port is provided on the lower valve body, and two discharge ports are provided on the upper valve seat. A first discharge pipe and a second discharge pipe corresponding to the two discharge ports are fixed on the upper valve seat. An electric actuator is fixed on the upper valve seat, and the electric actuator is connected to a coupling box. The output end of the coupling box is a first rotating shaft, and a first rocker arm is fixed at the end of the first rotating shaft. The upper valve seat of the utility model is fixedly connected to the two upper discharge ports and cannot be disassembled. When performing maintenance and replacement, the entire valve seat needs to be disassembled, which increases the difficulty of maintenance and the maintenance cost. [Contents of the utility model]

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a detachable three-way swing valve to realize the connection between the upper valve seat and the two-way valve, so that the replacement operation is simple.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable three-way swing valve, comprising an upper valve seat, a lower valve body, a two-way connection, a sealing valve plate, a spring assembly, a swing arm, an electric actuator, a coupling box, a thin-shaft rocker arm, a connecting rod, and a thick-shaft rocker arm, wherein the bottom of the upper valve seat is detachably connected to the lower valve body by bolts, a sealing valve plate is provided in the inner cavity at the connection between the upper valve seat and the lower valve body, a spring assembly is provided on the back of the sealing valve plate, the top of the upper valve seat is detachably connected to the two-way connection by bolts, an electric actuator is fixed on the upper valve seat, the electric actuator is connected to the coupling box, the output end of the coupling box is connected to the thin-shaft rocker arm by a rotating shaft, the thin-shaft rocker arm is connected to the thick-shaft rocker arm by a connecting rod, the connecting rod is hinged to the ends of the thin-shaft rocker arm and the thick-shaft rocker arm respectively, and the thick-shaft rocker arm is connected to the swing arm by a rotating shaft.

[0006] Preferably, the combination of the upper valve seat, the lower valve body and the two-way connection is a cavity.

[0007] Preferably, a feed port is provided at the bottom of the lower valve body, and an inspection hole is provided at the lower side of the lower valve body.

[0008] Preferably, the two-way connection includes a straight connection and an elbow connection, and an elbow connection is provided on one side of the straight connection.

[0009] Preferably, the straight connection is a straight pipe arranged vertically, and a straight connection flange is provided on the outer side of the outlet of the straight connection.

[0010] Preferably, the elbow connection is a bent pipe, and an elbow connection flange is provided on the outside of the elbow connection outlet.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is a detachable three-way swing valve. Since the upper valve seat is detachable when connected to the two-way valve, when the sealing surface of the upper valve seat is damaged, only the upper valve seat needs to be replaced without replacing the entire valve body or other components, which can save maintenance costs and time and improve equipment availability and maintenance efficiency.

[0013] 2. The upper valve seat of the detachable three-way swing valve of the utility model can be customized according to the special needs of customers. Appropriate materials, sealing structures and sizes can be selected according to the characteristics of the working medium, working conditions and other requirements to meet the specific needs of customers.

[0014] 3. The utility model adopts a detachable three-way swing valve, which adopts a detachable design, effectively solving the problem of damage to the sealing surface of the upper valve seat. The sealing surface can be replaced independently without interfering with other components or affecting the normal operation of the valve, thereby improving the reliability and service life of the valve.

Brief Description of the Drawings

[0015] Figure 1 This is a structural schematic diagram of a separable three-way swing valve embodiment 1 of the utility model;

[0016] Figure 2 This is a top view of the structure of a detachable three-way swing valve embodiment 1 of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a second embodiment of a detachable three-way swing valve of the utility model;

[0018] Figure 4 This is a top view of the structure of a second embodiment of a detachable three-way swing valve of the utility model;

[0019] In the figure: 1-upper valve seat, 2-lower valve body, 3-two-way connection, 31-straight connection, 32-elbow connection, 4-elbow connection flange, 5-straight connection flange, 6-sealing valve plate, 7-spring assembly, 8-swing arm, 9-inspection hole, 10-electric actuator, 11-coupling box, 12-thin shaft rocker arm, 13-connecting rod, 14-thick shaft rocker arm, 15-feed port. [Specific implementation method]

[0020] 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.

[0021] Embodiment 1

[0022] See also Figure 1 , 2 In the embodiment of the utility model, a detachable three-way swing valve comprises an upper valve seat 1, a lower valve body 2, a two-way connection 3, a sealing valve plate 6, a spring assembly 7, a swing arm 8, an electric actuator 10, a coupling box 11, a thin-shaft rocker arm 12, a connecting rod 13, and a thick-shaft rocker arm 14. The bottom of the upper valve seat 1 is detachably connected to the lower valve body 2 by bolts downward, a feed port 15 is provided at the bottom of the lower valve body 2, and an inspection hole 9 is provided on the lower side of the lower valve body 2. A sealing valve plate 6 is provided in the inner cavity at the connection between the upper valve seat 1 and the lower valve body 2, and a spring assembly 7 is provided on the back of the sealing valve plate 6. The spring assembly 7 can ensure the fit between the sealing valve plate 6 and the upper valve seat 1 to prevent the conveyed material from entering between the sealing surfaces. The top of the upper valve seat 1 is detachably connected to the two-way connection 3 by bolts upward, and the upper valve seat 1, the lower valve body 2, and the two-way connection 3 are detachably connected to ... The combination formed by the connection 3 is a cavity, and the two-way connection 3 includes a straight connection 31 and an elbow connection 32. The straight connection 31 is provided with an elbow connection 32 on one side. The straight connection 31 is a straight pipe arranged vertically, and a straight connection flange 5 is provided on the outer side of the outlet of the straight connection 31. The elbow connection 32 is a curved pipe, and an elbow connection flange 4 is provided on the outer side of the outlet of the elbow connection 32. An electric actuator 10 is fixed on the upper valve seat 1, and the electric actuator 10 is connected to the coupling box 11. The output end of the coupling box 11 is connected to the thin-shaft rocker arm 12 through a rotating shaft, and the thin-shaft rocker arm 12 is connected to the thick-shaft rocker arm 14 through a connecting rod 13. The connecting rod 13 is hinged to the ends of the thin-shaft rocker arm 12 and the thick-shaft rocker arm 14 respectively, and the thick-shaft rocker arm 14 is connected to the swing arm 8 through a rotating shaft.

[0023] At this time, the straight-through connecting flange 4 is closed, and the electric actuator 10 drives the thin-shaft rocker arm 12 through the coupling box 11. The thin-shaft rocker arm 12 rotates to make the connecting rod 13 drive the thick-shaft rocker arm 14 to rotate clockwise. The thick-shaft rocker arm 14 drives the swing arm 8 and the sealing valve plate 6 to rotate through the shaft. The material enters the cavity of the elbow connection 32 from the feed port 15 through the lower valve body 2, and is discharged from the outlet of the elbow connection 32 into the corresponding container.

[0024] Embodiment 2

[0025] See also Figure 3 , 4 In the embodiment of the utility model, a detachable three-way swing valve comprises an upper valve seat 1, a lower valve body 2, a two-way connection 3, a sealing valve plate 6, a spring assembly 7, a swing arm 8, an electric actuator 10, a coupling box 11, a thin-shaft rocker arm 12, a connecting rod 13, and a thick-shaft rocker arm 14. The bottom of the upper valve seat 1 is detachably connected to the lower valve body 2 by bolts downward, a feed port 15 is provided at the bottom of the lower valve body 2, and an inspection hole 9 is provided at the lower side of the lower valve body 2. A sealing valve plate 6 is provided in the inner cavity at the connection between the upper valve seat 1 and the lower valve body 2, and a spring assembly 7 is provided on the back of the sealing valve plate 6. The top of the upper valve seat 1 is detachably connected to the two-way connection 3 by bolts upward, and the combination of the upper valve seat 1, the lower valve body 2, and the two-way connection 3 is a cavity. The two-way connection 3 includes a straight connection 31 and an elbow connection 32. The straight connection 31 is provided with an elbow connection 32 on one side. The straight connection 31 is a straight pipe arranged vertically. A straight connection flange 5 is provided on the outer side of the outlet of the straight connection 31. The elbow connection 32 is a curved pipe. An elbow connection flange 4 is provided on the outer side of the outlet of the elbow connection 32. An electric actuator 10 is fixed on the upper valve seat 1. The electric actuator 10 is connected to the coupling box 11. The output end of the coupling box 11 is connected to the thin-shaft rocker arm 12 through a rotating shaft. The thin-shaft rocker arm 12 is connected to the thick-shaft rocker arm 14 through a connecting rod 13. The connecting rod 13 is hinged to the ends of the thin-shaft rocker arm 12 and the thick-shaft rocker arm 14 respectively. The thick-shaft rocker arm 14 is connected to the swing arm 8 through a rotating shaft.

[0026] At this time, the elbow connection flange 4 is closed, and the electric actuator 10 drives the thin-shaft rocker arm 12 through the coupling box 11. The thin-shaft rocker arm 12 rotates to make the connecting rod 13 drive the thick-shaft rocker arm 14 to rotate counterclockwise. The thick-shaft rocker arm 14 drives the swing arm 8 and the sealing valve plate 6 to rotate through the shaft. The material enters the cavity of the straight connection 31 from the feed inlet 15 through the lower valve body 2, and is discharged from the outlet of the straight connection 31 into the corresponding container.

[0027] Working principle:

[0028] The utility model discloses a detachable three-way swing valve. When the sealing surface of an upper valve seat 1 is damaged, the upper valve seat 1 can be replaced by removing the connected bolts for continued operation, thereby reducing costs and improving replacement efficiency. At the same time, the detachable connection can be customized according to the personalized needs of customers, thus achieving replaceability.

[0029] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A detachable three-way swing valve, characterized in that: The invention comprises an upper valve seat (1), a lower valve body (2), a two-way connection (3), a sealing valve plate (6), a spring assembly (7), a rocker arm (8), an electric actuator (10), a coupling box (11), a thin-shaft rocker arm (12), a connecting rod (13), and a thick-shaft rocker arm (14). The bottom of the upper valve seat (1) is detachably connected to the lower valve body (2) by bolts. A sealing valve plate (6) is provided in the inner cavity at the connection between the upper valve seat (1) and the lower valve body (2). The back of the sealing valve plate (6) is provided with a spring assembly (7). The top of the upper valve seat (1) is The upper valve seat (1) is detachably connected to a two-way connection (3) by bolts, and an electric actuator (10) is fixed on the upper valve seat (1). The electric actuator (10) is connected to a coupling box (11). The output end of the coupling box (11) is connected to a thin-shaft rocker arm (12) via a rotating shaft. The thin-shaft rocker arm (12) is connected to a thick-shaft rocker arm (14) via a connecting rod (13). The connecting rod (13) is hinged to the ends of the thin-shaft rocker arm (12) and the thick-shaft rocker arm (14) respectively. The thick-shaft rocker arm (14) is connected to a swing arm (8) via a rotating shaft.

2. A detachable three-way swing valve according to claim 1, characterized in that: The combination of the upper valve seat (1), the lower valve body (2) and the two-way connection (3) forms a cavity.

3. A detachable three-way swing valve as claimed in claim 2, characterized in that: The bottom of the lower valve body (2) is provided with a feed inlet (15), and the lower side of the lower valve body (2) is provided with an inspection hole (9).

4. A detachable three-way swing valve according to claim 1, characterized in that: The two-way connection (3) comprises a straight connection (31) and an elbow connection (32), and one side of the straight connection (31) is provided with an elbow connection (32).

5. A detachable three-way swing valve as claimed in claim 4, characterized in that: The through connection (31) is a straight pipe arranged vertically, and a through connection flange (5) is arranged on the outer side of the outlet of the through connection (31).

6. A detachable three-way swing valve according to claim 4, characterized in that: The elbow connection (32) is a curved pipe, and an elbow connection flange (4) is arranged outside the outlet of the elbow connection (32).

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