CN219139829U

CN219139829U - Fluid intelligent industrial screw valve

Info

Publication number: CN219139829U
Application number: CN202223531321.3U
Authority: CN
Inventors: 潘薇
Original assignee: Zhejiang Tiandun Valve Technology Co ltd
Current assignee: Zhejiang Tiandun Valve Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-06
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to an intelligent industrial screw valve for fluid, which is designed for solving the technical problems of complex structural design, large volume, inconvenient valve seal production and assembly, slower pressure release of fluid and poor tightness and stability of the existing similar products. One side of a valve body of the screw valve is provided with a pressure relief opening, one end of a valve seal in the valve body is in external threaded connection with one end of a screw rod extending out of a mechanism box through the valve body, and the other end of the screw rod is connected with an output gear in a gear box assembly; the valve body comprises a valve port and a connecting frame, one end of the valve port is connected with the connecting frame, the other end of the valve port is provided with an orifice, a valve seal is arranged at a pressure relief orifice in a cavity formed by the valve port and the connecting frame and moves up and down through a motor, a valve seal support is provided with a screw support, a support disc of the screw support is connected with the valve seal support, a support shaft is arranged in the middle of the support disc of the screw support, an internal thread is arranged in the support shaft of the screw support, and an external thread of the screw rod spirally stretches into the internal thread of the support shaft.

Description

Fluid intelligent industrial screw valve

Technical Field

The utility model relates to an electric fluid valve, in particular to a fluid intelligent industrial screw valve.

Background

The fluid valve is a valve for controlling the flow rate of fluid by changing the cross section or length, and is generally divided into a straight-through type valve and an angle type valve according to the channel mode, and is generally divided into three types of needle type valve, groove type valve and window type valve according to the shape of an opening and closing piece. The electric fluid valve is a fluid valve which is closed or opened by a motor-driven valve, wherein some of the fluid valves adopt an electric ball valve structure and are applied to a gas valve; application number 202021015791.2, grant bulletin date 2020.12.29, title of the utility model "gas meter built-in ball valve" disclosed in chinese patent literature; further, as disclosed in chinese patent document, application No. 202221530025.9, grant date 2022.10.25, and the name of the utility model "intelligent gas built-in ball valve". However, the product is mainly used for a gas valve, and when the product is used as a fluid valve, part of structural components need to be correspondingly improved; meanwhile, the technical problems of large volume, inconvenient valve seal production and assembly, slower pressure release of fluid and poor tightness and stability caused by complex structural design of similar products exist.

Disclosure of Invention

In order to overcome the defects, the utility model aims to provide the intelligent industrial screw valve for the fluid in the field, so that the technical problems of large volume, inconvenient valve seal production and assembly, slower pressure release of the fluid and poor sealing property and stability caused by complex structural design of the existing similar products are solved. The aim is achieved by the following technical scheme.

A pressure relief opening is arranged on one side of a valve body of the intelligent fluid industrial screw valve, a valve seal is arranged in the valve body, one end of the valve seal is in external threaded connection with one end of a screw rod extending out of a mechanism box through the valve body, the other end of the screw rod is connected with an output gear in a gear box assembly, a transmission gear in the gear box assembly is meshed with a motor gear, and a motor shaft extending out of a motor in the motor box is connected with the motor gear. The valve body comprises a valve port and a connecting frame, one end of the valve port is connected with the connecting frame, an orifice is formed in the other end of the valve port, a valve seal is arranged at a pressure relief orifice in a cavity formed by the valve port and the connecting frame and moves up and down through a motor, a valve seal support is arranged in the valve seal, a screw support is arranged on the valve seal support, the valve seal support exposing the bottom of the valve seal, a support disc of the screw support is connected with the valve seal support, a support shaft is arranged in the middle of the support disc of the screw support, an internal thread is arranged in the support shaft of the screw support, and an external thread of the screw rod spirally stretches into the internal thread of the support shaft. Therefore, the motor drives the screw rod to move up and down through the output gear of the gear box assembly, and the screw rod drives the valve seal to move up and down through the screw rod support and the valve seal support, so that the valve opening and closing are realized.

The pressure relief opening of the valve body is a hollowed-out hole at the joint of one end of the valve port and the connecting frame, and the orifice at the other end of the valve port protrudes upwards. The valve seal is positioned between one end and the other end of the orifice of the valve port and is in a closed state of the screw valve, and the valve seal is positioned at the hollowed-out hole and is in an open state of the screw valve, so that the pressure relief opening can be replaced by an outlet at one side.

The output gear that the output gear one end outside of lead screw is equipped with bellied spacing head, and the output gear that spacing head corresponds is equipped with the arch and is curved spacing post, and the lead screw opposite side external screw thread bottom of spacing head symmetry is equipped with spacing limit, and spacing limit corresponds the support shaft department internal thread tip of screw rod support and is equipped with spacing face, and the drill way internal diameter of valve port is equipped with the spacing muscle of valve seal. Therefore, in the rotating process of the screw rod driven by the motor, the transmission gear and the output gear, the screw rod drives the valve seal to move up and down and limit by the screw rod support due to the limit edge, the limit head and the limit column of the screw rod, the limit surface of the internal thread at the support shaft and the limit rib at the orifice inner diameter of the valve port.

The outer diameter of a support shaft of the screw support at one end, extending out of the mechanism box, of the screw rod is sequentially provided with an envelope and an envelope pressing plate, and the envelope is arranged in the envelope pressing plate of the mechanism box.

The valve seal support is fixed in the valve seal through wedge heads with outer diameters which are symmetrically arranged in pairs. The above is an embodiment in which the valve seal is secured to the valve seal holder.

The output gear is meshed with the first transmission gear in the gear box assembly, the first transmission gear is meshed with the second transmission gear, the second transmission gear is meshed with the third transmission gear, the third transmission gear is meshed with the motor gear, and the first transmission gear, the second transmission gear and the third transmission gear are respectively provided with two overlapped and fixedly arranged big and small gears. The foregoing is a specific structural embodiment of a gearbox assembly that reduces the overall size of the screw valve.

The motor box is provided with a motor cover, the motor cover is provided with an electric wire plug and a side leakage hole plug, the motor cover at the electric wire plug is provided with a plug fixing buckle, a through hole at one side of the plug fixing buckle is fixed on a raised rib column, and sealing rings are respectively arranged at the joints of the motor box, the motor cover and the mechanism box. The structure ensures the sealing and wiring of the motor case.

The utility model has reasonable structural design, convenient use, installation and production, good tightness and stability and small volume occupation; the intelligent fluid intelligent industrial screw valve is suitable for being used as a fluid intelligent industrial screw valve and is suitable for structural improvement of similar products.

Drawings

FIG. 1 is a schematic view of an exploded construction of the present utility model, with section A being framed.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Figure number and name: 1. valve port, 2, valve seal, 3, valve seal support, 4, screw support, 401, support disc, 402, support shaft, 5, connecting frame, 6, envelope pressing plate, 7, envelope, 8, mechanism box, 9, gear box assembly, 901, output gear, 10, screw rod, 11, motor gear, 12, motor box, 13, motor, 14, motor cover, 15, wire plug, 16, plug fixing buckle, 17 and leakage detection hole plug.

Detailed Description

The construction and use of the present utility model will now be further described with reference to the accompanying drawings. As shown in fig. 1-2, one end of a valve seal 2 of the screw valve is in external threaded connection with one end of a screw rod 10 extending out of a mechanism box 8 through a valve seal bracket 3, the other end of the screw rod is connected with an output gear 901 in a gear box assembly 9, a transmission gear in the gear box assembly is meshed with a motor gear 11, and a motor shaft extending out of a motor 13 in a motor box 12 is connected with the motor gear; one end of the valve port 2 is connected with the connecting frame 5, the other end of the valve port is provided with an orifice, a valve seal is arranged in a pressure relief opening in a cavity formed by the valve port and the connecting frame and moves up and down through a motor, a valve seal support 3 is arranged in the valve seal, the valve seal support exposing the bottom of the valve seal is provided with a screw support 4, a support disc 401 of the screw support is connected with the valve seal support, a support shaft 402 is arranged in the middle of the support disc of the screw support, an internal thread is arranged in the support shaft of the screw support, and an external thread of the screw rod spirally stretches into the internal thread of the support shaft. The hollow hole at the joint of one end of the valve port and the connecting frame is provided with an orifice at the other end protruding upwards; the output gear one end outside of lead screw is equipped with bellied spacing head, and the output gear that spacing head corresponds is equipped with the arch and is curved spacing post, and the lead screw opposite side external screw thread bottom of spacing head symmetry is equipped with spacing limit, and spacing limit corresponds the support shaft department internal thread tip of screw support and is equipped with spacing face, and the drill way internal diameter of valve port is equipped with the spacing muscle of valve seal. The outer diameter of a support shaft of a screw support at one end of a mechanism box extending out of the screw rod is sequentially provided with an envelope 7 and an envelope pressing plate 6, and the envelope is arranged in the envelope pressing plate of the mechanism box; the sealing support is fixed in the valve seal through wedge heads with outer diameters which are symmetrically arranged in pairs. The output gear in the gear box assembly is meshed with the first transmission gear, the first transmission gear is meshed with the second transmission gear, the second transmission gear is meshed with the third transmission gear, the third transmission gear is meshed with the motor gear, and the first transmission gear, the second transmission gear and the third transmission gear are respectively provided with two overlapped and fixedly arranged big and small gears. The motor case is provided with a motor cover 14, the motor cover is provided with an electric wire plug 15 and a side leakage hole plug 17, the motor cover at the electric wire plug is provided with a plug fixing buckle 16, a through hole at one side of the plug fixing buckle is fixed on a raised rib column, and sealing rings are respectively arranged at the joints of the motor case, the motor cover and the mechanism case.

When the valve sealing device is used, the motor drives the output gear to rotate through the transmission gear in the gear box assembly, the output gear drives the screw rod to rotate through the limiting column, and the valve sealing at the valve sealing support of the screw rod support is driven to move up and down in a valve sealing mode, so that valve closing and valve opening operations are achieved. When the limit edge of the screw rod is propped against the limit surface in the end part of the internal thread at the support shaft of the screw rod support, the valve is closed in place, and the valve seal moves to the limit rib at the inner diameter of the valve port to realize closing the valve in place.

Claims

1. A valve body side of the intelligent fluid industrial screw valve is provided with a pressure relief opening, a valve seal (2) is arranged in the valve body, one end of the valve seal is in external threaded connection with one end of a screw rod (10) extending out of a mechanism box (8) through the valve body, the other end of the screw rod is connected with an output gear (901) in a gear box assembly (9), a transmission gear in the gear box assembly is meshed with a motor gear (11), and a motor shaft extending out of a motor (13) in a motor box (12) is connected with the motor gear; the valve is characterized in that the valve body comprises a valve port (1) and a connecting frame (5), one end of the valve port is connected with the connecting frame, an orifice is arranged at the other end of the valve port, a valve seal (2) is arranged at a pressure relief orifice in a cavity formed by the valve port and the connecting frame and moves up and down through a motor, a valve seal support (3) is arranged in the valve seal, a screw support (4) is arranged on the valve seal support, the support disc (401) of the screw support is connected with the valve seal support, a support shaft (402) is arranged in the middle of the support disc of the screw support, internal threads are arranged in the support shaft of the screw support, and external threads of the screw rod spirally extend into the internal threads of the support shaft.

2. The intelligent industrial screw valve for the fluid is characterized in that the pressure relief opening of the valve body is a hollowed-out hole at the joint of one end of the valve port (1) and the connecting frame (5), and the orifice at the other end of the valve port protrudes upwards.

3. The intelligent fluid industrial screw valve according to claim 1, wherein a protruding limiting head is arranged at the outer side of one end of an output gear (901) of the screw rod (10), the output gear corresponding to the limiting head is provided with a protruding arc-shaped limiting column, the bottom of an external thread at the other side of the screw rod symmetrical to the limiting head is provided with a limiting edge, the end part of the limiting edge, corresponding to an internal thread at a support shaft (402) of the screw rod support (4), is provided with a limiting surface, and the inner diameter of an orifice of the valve port (1) is provided with a limiting rib of the valve seal (2).

4. The intelligent industrial screw valve for fluid according to claim 1, wherein the outer diameter of the support shaft (402) of the screw support (4) at the end of the mechanism box (8) of the screw (10) extending out is provided with a jacket (7) and a jacket pressing plate (6) in sequence, and the jacket is arranged in the jacket pressing plate of the mechanism box.

5. The intelligent industrial screw valve for fluid according to claim 1, wherein the valve seal bracket (3) is fixed in the valve seal (2) by wedge heads with outer diameters symmetrically arranged in pairs.

6. The intelligent fluid industrial screw valve according to claim 1, wherein the output gear (901) in the gear box assembly (9) is meshed with a first transmission gear, the first transmission gear is meshed with a second transmission gear, the second transmission gear is meshed with a third transmission gear, the third transmission gear is meshed with a motor gear, and the first transmission gear, the second transmission gear and the third transmission gear are respectively provided with two large and small gears which are fixedly arranged in a superposition mode.

7. The intelligent industrial screw valve for fluid according to claim 1, wherein the motor case (12) is provided with a motor cover (14), the motor cover is provided with a wire plug (15) and a side leakage hole plug (17), the motor cover at the wire plug is provided with a plug fixing buckle (16), a through hole at one side of the plug fixing buckle is fixed on a raised rib column, and sealing rings are respectively arranged at the joints of the motor case, the motor cover and the mechanism case (8).