CN206280583U - Fluidized pump locks gas moushroom valve - Google Patents

Abstract

A kind of fluidized pump locks gas moushroom valve, including middle rocking type cylinder, swing rod, armshaft, valve seat, valve body, sealing ring, disk, stuffing-box, spring；The middle part of the cylinder body of middle rocking type cylinder and valve seat are rotatedly connected.Advantage is：Middle rocking type cylinder is attached installation by the way of the engaging lug that cylinder block middle part and valve seat are provided with is hinged, and overall structure is simple, and handling ease simultaneously saves material.

Description

Fluidization chamber pump air lock disc valve

technical field

The utility model relates to a disc valve, in particular to an air lock disc valve of a fluidized warehouse pump.

Background technique

At present, there are many kinds of valves used as air-lock disc valves for fluidized storage pumps, such as dome valves, double-valve plate gate valves, hammer valves and pneumatic butterfly valves, but there are common problems such as unstable performance and short service life.

Application number: 200520100905.2, the Chinese utility model patent document named "Pneumatic Rotary Feed Valve" discloses a fluidized storage pump lock air disc valve "involving a cylinder on the bracket, a valve body and a fitting The valve seat on it is provided with a sealing ring on one side of the inner hole of the valve seat, and the sealing ring cooperates with the valve plate to form a sealing friction pair. The other end of the rod is matched with one end of the fulcrum pierced on the valve seat, and the other end of the fulcrum is connected with a rotating shaft, and a valve plate is arranged on the rotating shaft.” This utility model patent technology is used The structural improvement of the pneumatic rotary feed valve is used in the material bin pump, pipeline switching and other occasions. Therefore, it has reasonable design, simple structure, adopts valve plate rotary sealing form, which is convenient for positioning and reduces friction, bidirectional support of rotating shaft, full flow of inlet and outlet, valve body is equipped with arc-shaped inner cavity, it is not easy to accumulate dust, good sealing performance, easy to open Low pressure, long service life and so on. The existing problem is: the connection mode of the cylinder is complicated, which affects the convenience of installation, use, disassembly, inspection and maintenance.

Contents of the invention

The main purpose of the invention of the utility model is to provide a fluidized storage pump air lock disc valve which is easy to install, use, disassemble, overhaul and maintain.

The technical solution used in the utility model is: a fluidized storage pump air lock disc valve, including a middle swing type cylinder, a swing rod, a shaft arm, a valve seat, a valve body, a sealing ring, a disc, a stuffing box, and a spring; The middle part of the cylinder block of the middle rocking type cylinder is connected with the valve seat in rotation.

Among them, the main relationship between them is that the middle swing type cylinder is the action actuator, and the valve seat and the valve body form a volume. The valve seat forms a pair of sealing friction pair with the disc through the sealing ring. The disc is connected with the spring, shaft arm, stuffing box and swing rod. The free end of the piston of the middle swing type cylinder is hinged with the swing rod. When the middle swing type cylinder moves, the swing rod and the shaft arm drive the disc to perform the rotation movement of opening and closing the channel. The utility model has the advantages of a simpler structure, easier installation, use, disassembly, repair and maintenance, as compared with the reference document, the fixed form of the middle swing cylinder and the connection position of the valve seat are different.

Preferably, a connecting ear is provided on the valve seat, a connecting hole is provided on the connecting ear, and a connecting shaft head is fixed in the middle of the pump body of the middle swing type cylinder, and the connecting shaft head is connected to the connecting hole in rotation. In this preferred solution, the connection structure between the pump body and the valve seat of the middle swing type cylinder is simple, and the pump body of the middle swing type cylinder is easy to disassemble.

Preferably, the diameter of the connecting shaft head is smaller than the diameter of the connecting hole provided on the connecting ear; the connecting shaft head is rotationally connected with the connecting hole through thrust bearings arranged at both ends of the connecting hole. Wherein, the free end of the connecting shaft head is provided with a screw thread adapted to the nut, and the thrust bearing is installed on the connecting shaft head by using the nut. In this preferred solution, the rotating connection structure is simple, and the installation and use are reliable.

Preferably, the valve seat and the valve body are connected by bolts. In this preferred solution, the connection structure is simple, which facilitates the processing and manufacturing of the valve seat and the valve body.

To sum up, the beneficial effect of the utility model is: in the comparative document, the middle swing type cylinder is installed in the way that the tail end of the cylinder body and a welded frame fixedly connected with the valve seat are hinged, and the overall size is large. , Inconvenient installation and maintenance. And in the utility model, the swinging cylinder in the middle is connected and installed by means of a connecting ear provided on the middle part of the cylinder block and the valve seat to be hinged, the overall structure is simple, the processing is easy and the material is saved.

Description of drawings

Fig. 1: structural representation of the utility model;

Figure 2: A-A sectional schematic diagram;

Figure 3: The overall cross-sectional schematic diagram of the air lock disc valve of the fluidized chamber pump.

In the figure: intermediate swing type cylinder 1, thrust bearing 2, connecting ear 3, nut 4, connecting piece 5, swing rod 6, material box 7, shaft arm 8, filling spring 9, valve seat 10, sealing ring 11, Disc 12, valve body 13.

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

As shown in Figures 1-3, the utility model includes a middle rocking cylinder 1, a swing rod 6, a shaft arm 8, a valve seat 10, a valve body 13, a sealing ring 11, a disc 12, a stuffing box 7, and a spring 9; The middle part of the cylinder block of the rocking type cylinder 1 is rotatably connected with the valve seat 10 . Among them, the swing-type cylinder in the middle is the action actuator, the valve seat 10 and the valve body 13 are connected by bolts, the valve seat and the valve body form a volume, the valve seat forms a pair of sealing friction pairs through the sealing ring and the disc, the disc and the spring, The shaft arm, the stuffing box and the swing rod are connected together, and the free end of the piston of the middle swing type cylinder is hinged with the swing rod (the free end of the piston of the middle swing type cylinder in this embodiment is fixed with a connecting piece 5, and the middle swing type cylinder The free end of the piston of the cylinder is hinged through the connecting piece 5 and the swing rod), when the middle swing type cylinder moves, the swing rod and the shaft arm drive the disc to perform the rotation movement of opening and closing the channel. The specific structural details are due to the known technology. I won't go into details here.

As a preference, a connecting ear 3 is provided on the valve seat 10, a connecting hole is provided on the connecting ear 3, and a connecting shaft head is fixed in the middle of the pump body of the middle swing type cylinder 1, and the connecting shaft head is connected to the connecting hole in rotation. . Further preferably, the diameter of the connecting shaft head is smaller than the diameter of the connecting hole arranged on the connecting ear 3, and the free end of the connecting shaft head is provided with a screw thread adapted to the nut 4; The bearing 2 is rotatably connected with the connecting hole, and the thrust bearing 2 is mounted on the connecting shaft head by a nut 4 .

The specific embodiments described above are only preferred implementation modes of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. In fact, some equivalent changes can also be made according to the shape, structure and design purpose of the utility model. Therefore, all equivalent changes made according to the shape, structure and design purpose of the utility model should be included in the protection scope of the utility model, that is, these equivalent changes should be protected by the utility model.

Claims (5)

1. A fluidized silo pump air lock disc valve, including the middle swing type cylinder (1), swing rod (6), shaft arm (8), valve seat (10), valve body (13), sealing ring ( 11), disc (12), stuffing box (7), spring (9); it is characterized in that: the middle part of the cylinder body of the middle swing type cylinder (1) is connected to the valve seat (10) in rotation. 2. The air lock disc valve of the fluidized silo pump according to claim 1, characterized in that: the valve seat (10) is provided with a connecting ear (3), and the connecting ear (3) is provided with a connecting hole, The middle part of the pump body of the middle swing type cylinder (1) is fixedly provided with a connecting shaft head, and the connecting shaft head is rotatably connected with the connecting hole. 3. The air lock disk valve of the fluidized silo pump according to claim 2, characterized in that: the diameter of the connecting shaft head is smaller than the diameter of the connecting hole on the connecting ear (3); The thrust bearings (2) at the two ends of the hole are connected in rotation with the connection hole. 4. The air lock disk valve of the fluidized silo pump according to claim 3, characterized in that: it also includes a nut (4), and the free end of the connecting shaft head is provided with a screw thread adapted to the nut (4). The push bearing (2) is installed on the connecting shaft head with a nut (4). 5. The fluidized chamber pump air lock disc valve according to claim 1 or 2 or 3 or 4, characterized in that: the valve seat (10) is bolted to the valve body (13).