阅读说明：本技术 一种安全性直通阀门启动器 (Safety straight-through valve starter ) 是由 吴加成 崔立军 吴庆林 段家贵 王健 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种安全性直通阀门启动器,属于安全启动装置技术领域。一种安全性直通阀门启动器,包括安装壳体和保护壳体,所述保护壳体固定连接在安装壳体的上表面,所述安装壳体的两端分别固定连接有进水管和出水管,所述进水管和出水管的外部固定连接有加强筋,所述安装壳体的侧壁上端还固定连接有安装盒,所述安装壳体、保护壳体和安装盒内安装有阀门启动机构,所述阀门启动机构包括有伺服电机,所述伺服电机下端连接有省力机构,所述省力机构一侧还连接有手动启动机构；本发明有效解决了现有设计未设计省力机构,阀门压力过大时易导致电机发生故障以及现有设计只能通过电机带动,若停电或者电机出现故障阀门则无法正常进行启闭的问题。(The invention discloses a safety straight-through valve starter, and belongs to the technical field of safety starting devices. A safety straight-through valve starter comprises an installation shell and a protection shell, wherein the protection shell is fixedly connected to the upper surface of the installation shell, two ends of the installation shell are fixedly connected with a water inlet pipe and a water outlet pipe respectively, reinforcing ribs are fixedly connected to the outer portions of the water inlet pipe and the water outlet pipe, the upper end of the side wall of the installation shell is also fixedly connected with an installation box, valve starting mechanisms are installed in the installation shell, the protection shell and the installation box and comprise servo motors, the lower ends of the servo motors are connected with labor-saving mechanisms, and one sides of the labor-saving mechanisms are also connected with manual starting mechanisms; the invention effectively solves the problems that the prior design is not provided with a labor-saving mechanism, the motor is easy to break down when the pressure of the valve is overlarge, the prior design can only be driven by the motor, and the valve cannot be normally opened and closed if the power is cut off or the motor breaks down.)

1. The utility model provides a straight-through valve starter of security, is including installation casing (1) and protection casing (2), its characterized in that: the protection shell (2) is fixedly connected to the upper surface of the installation shell (1), the two ends of the installation shell (1) are respectively and fixedly connected with a water inlet pipe (3) and a water outlet pipe (4), the outside of the water inlet pipe (3) and the water outlet pipe (4) is fixedly connected with a reinforcing rib (5), the upper end of the side wall of the installation shell (1) is also fixedly connected with an installation box (6), a valve starting mechanism (7) is installed in the installation shell (1), the protection shell (2) and the installation box (6), the valve starting mechanism (7) comprises a servo motor (701), the lower end of the servo motor (701) is connected with a labor-saving mechanism (702), one side of the labor-saving mechanism (702) is also connected with a manual starting mechanism (703), the lower end of the labor-saving mechanism (702) is connected with a second connecting rod (704), and the bottom end of the second connecting rod (704, the water inlet pipe is characterized in that a valve pipe (8) is further mounted in the mounting shell (1), the valve pipe (8) is connected between the water inlet pipe (3) and the water outlet pipe (4), and the valve plate (705) is arranged inside the valve pipe (8).

2. A safety through valve actuator as defined in claim 1, wherein: protection casing (2) are including cartridge type clamshell (201), fixedly connected with installation piece (202) on the lateral wall of cartridge type clamshell (201), display screen (203) are installed in the embedding on installation piece (202), still fixed mounting has pilot lamp (204) and control button (205) on installation piece (202), servo motor (701) is connected to pilot lamp (204) and control button (205) electricity.

3. A safety through valve actuator as defined in claim 1, wherein: servo motor (701) fixed mounting is in the inside of cartridge type clamshell (201), laborsaving mechanism (702) is including head rod (7021), the top of head rod (7021) and the output shaft fixed connection of servo motor (701), the bottom fixedly connected with gear (7022) of head rod (7021), gear (7022) and first worm wheel (7023) meshing are connected, first worm wheel (7023) fixed connection is on the top of first worm (7024), first worm (7024) rotate and install the inside at cartridge type clamshell (201).

4. A safety through valve actuator as defined in claim 1, wherein: the labor-saving mechanism (702) also comprises a second worm wheel (7025), the second worm wheel (7025) is meshed and connected with the first worm (7024), the second worm wheel (7025) is fixedly connected to a second worm (7026), two ends of the second worm (7026) are rotatably connected with the side wall of the cylindrical shell cover (201), the second worm (7025) is also in meshed connection with a gear ring (7027), the gear ring (7027) is rotatably arranged inside the cylindrical shell cover (201), a planetary gear (7028) is rotatably arranged in the gear ring (7027), the planetary gear (7028) is meshed with the internal teeth of the gear ring (7027), the middle of the planetary gear (7028) is provided with a sun gear (7029), the sun gear (7029) is meshed with the planetary gear (7028), the top end of the second connecting rod (704) is fixedly connected to the bottom surface of the sun gear (7029).

5. A safety through valve actuator as defined in claim 1, wherein: the manual starting mechanism (703) comprises a manual adjusting rod (7031), the manual adjusting rod (7031) is rotatably installed on the installation box (6), a worm groove is formed in one end of the manual adjusting rod (7031), the worm groove is meshed with the first worm wheel (7023), and an adjusting rotary disc (7032) is fixedly connected to one end, far away from the worm groove, of the manual adjusting rod (7031).

6. A safety through valve actuator as defined in claim 1, wherein: valve pipe (8) are including last body (801) and lower body (802), the equal fixedly connected with connecting sleeve (803) in both ends of going up body (801) and lower body (802), go up body (801) and lower body (802) and overlap through connecting sleeve (803) and connect on inlet tube (3) and outlet pipe (4), go up body (801) and go up fixedly connected with fixing bolt (804) on the side connecting strip of lower body (802), threaded connection has fixation nut (805) on fixing bolt (804), go up body (801) and go up fixedly connected with stopper (806) on the inner wall of lower body (802) still, stopper (806) and valve plate (705) phase-match.

Technical Field

The invention relates to the technical field of safe starting devices, in particular to a safe straight-through valve starter.

Background

The valve starter is mainly used for petrochemical industry, oil refining industry, chemical industry, metallurgy industry, electric power industry and other process industries mainly treating continuous material flow and energy flow, and is an actuating mechanism and control valve assembly in an automatic control system. The automatic control system is used for receiving signals (flow, pressure and the like) sent by a regulator, regulating the flow of a process medium according to the position and the characteristics of the automatic control system in a process pipeline, controlling the controlled quantity within the range required by the production process, and is widely used in important occasions such as fire-fighting water supply systems, large-scale boiler water flow automatic compensation systems, toxic and harmful liquid inlet and outlet valve automatic control systems and modern building water supply systems.

Valve starters used for some large valves in the market at present usually realize the opening and closing of the valve by driving a labor-saving mechanism in the valve to rotate through a motor, and the labor-saving mechanism is not arranged, so that when the pressure of the valve is too high, the motor is easy to break down and damage; in addition, the starting mechanism of the existing design can only be driven by a motor, and if power failure occurs, the valve cannot be normally opened and closed, so that the normal operation is influenced.

Disclosure of Invention

The invention aims to solve the problems that a labor-saving mechanism is not designed in the existing design, a motor is easy to break down when the pressure of a valve is too high, the existing design can only be driven by the motor, and the valve cannot be normally opened and closed when the power is cut off or the motor breaks down.

In order to achieve the purpose, the invention adopts the following technical scheme:

a safety direct valve starter comprises an installation shell and a protection shell, wherein the protection shell is fixedly connected to the upper surface of the installation shell, the two ends of the installation shell are respectively and fixedly connected with a water inlet pipe and a water outlet pipe, reinforcing ribs are fixedly connected to the outer portions of the water inlet pipe and the water outlet pipe, the upper end of the side wall of the installation shell is also fixedly connected with an installation box, a valve starting mechanism is installed in the installation shell, the protection shell and the installation box and comprises a servo motor, the lower end of the servo motor is connected with a labor-saving mechanism, one side of the labor-saving mechanism is also connected with a manual starting mechanism, the lower end of the labor-saving mechanism is connected with a second connecting rod, a valve plate is fixedly connected to the bottom end of the second connecting rod, a valve pipe is also installed in the, the valve plate is arranged in the valve tube.

Preferably, the protection casing is including a cylindrical shell cover, fixedly connected with installation piece on the lateral wall of cylindrical shell cover, the display screen is installed in the embedding on the installation piece, still fixed mounting has pilot lamp and control button on the installation piece, servo motor is connected to pilot lamp and control button electricity.

Preferably, the servo motor is fixedly installed inside the cylindrical shell cover, the labor-saving mechanism comprises a first connecting rod, the top end of the first connecting rod is fixedly connected with an output shaft of the servo motor, a gear is fixedly connected to the bottom end of the first connecting rod and meshed with a first worm gear, the first worm gear is fixedly connected to the top end of a first worm, and the first worm is rotatably installed inside the cylindrical shell cover.

Preferably, laborsaving mechanism is still including the second worm wheel, the second worm wheel is connected with the meshing of first worm, second worm wheel fixed connection is on the second worm, the both ends of second worm are rotated with the lateral wall of shell type cover and are connected, the second worm still is connected with the ring gear meshing, the ring gear rotates the inside of installing at the shell type cover, the internal rotation of ring gear installs planetary gear, planetary gear is connected with the internal tooth meshing of ring gear, planetary gear's centre is provided with sun gear, sun gear is connected with the planetary gear meshing, the top fixed connection of second connecting rod is on sun gear's bottom surface.

Preferably, the manual starting mechanism comprises a manual adjusting rod, the manual adjusting rod is rotatably installed on the installation box, a worm groove is formed in one end of the manual adjusting rod, the worm groove is meshed with the first worm wheel, and an adjusting rotary disc is fixedly connected to one end, far away from the worm groove, of the manual adjusting rod.

Preferably, the valve pipe comprises an upper pipe body and a lower pipe body, the two ends of the upper pipe body and the two ends of the lower pipe body are fixedly connected with connecting sleeves, the upper pipe body and the lower pipe body are connected onto the water inlet pipe and the water outlet pipe through the connecting sleeves, fixing bolts are fixedly connected onto the side connecting strips of the upper pipe body and the lower pipe body, fixing nuts are spirally connected onto the fixing bolts, and the inner walls of the upper pipe body and the lower pipe body are fixedly connected with the fixing nuts

Compared with the prior art, the invention provides a safety straight-through valve starter, which has the following beneficial effects:

(1) the invention is provided with a labor-saving mechanism inside the installation shell, when the valve needs to be opened and closed, a servo motor is started, the servo motor drives a gear to rotate through a first connecting rod, the gear can drive a first worm wheel meshed with the gear to rotate simultaneously, the lower end of the first worm wheel is fixedly connected with a first worm, a gear ring meshed with the first worm can be driven to rotate through the first worm, when the gear ring rotates, a planetary gear meshed and connected with the inside of the gear ring can be driven to rotate, meanwhile, a sun gear is meshed and connected with the middle of the planetary gear, the sun gear can be driven to rotate by the planetary gear, the lower surface of the sun gear is fixedly connected with a second connecting rod and a valve plate, by the design, the rotation of the servo motor can drive the rotation of the bottom valve plate, compared with the rotation of common gears on the market, the invention adopts the transmission mode of the worm gear, the gear ring and the planetary gear, and the transmission mode of the worm gear, the gear ring and the planetary gear is more labor-saving compared with the common gear transmission mode.

(2) The invention is characterized in that a mounting box is fixedly connected on the side wall of a mounting shell, a manual starting mechanism is fixedly mounted in the mounting box, when power failure or failure of a servo motor occurs, a user can control the opening and closing of a valve through the manual starting mechanism, when the valve is required to be closed, only a clockwise adjusting turntable is needed to rotate, a manual adjusting rod is driven to rotate through the adjusting turntable, a worm groove arranged at one end of the manual adjusting rod, which is far away from the adjusting turntable, is meshed with a first worm wheel, the first worm wheel can be driven to rotate through the action of the manual adjusting rod, and then a second connecting rod and a valve plate are driven to close through the linkage action of the first worm, a second worm wheel, a second worm, a toothed ring, a planetary gear and a sun gear, on the contrary, if the valve is required to be opened, only the counterclockwise adjusting turntable is needed to rotate, and because the worm wheel, the toothed ring and the, thereby guaranteed that the user can rotate through the manpower and adjust the carousel for the device body still can control opening and close of valve when having a power failure or servo motor trouble.

(3) The valve pipe is also arranged in the mounting shell and consists of an upper pipe body and a lower pipe body, when the valve pipe is used, the lower pipe body is placed at the lower ends of the water inlet pipe and the water outlet pipe, after the positions of the lower pipe body and the water inlet pipe are adjusted, the threaded hole on the side edge of the upper pipe body is aligned with the fixing bolt on the lower pipe body, and after the upper pipe body and the lower pipe body are connected, the upper pipe body and the lower pipe body are fixedly connected to one time through the fixing nut.

Drawings

Fig. 1 is a schematic structural diagram of a safety straight-through valve actuator according to the present invention;

fig. 2 is a schematic structural diagram of the inside of a protective casing of a safety straight-through valve actuator according to the present invention;

fig. 3 is a schematic structural diagram of a protective casing of a safety straight-through valve actuator according to the present invention;

fig. 4 is a schematic structural diagram of a valve actuating mechanism of a safety direct valve actuator according to the present invention;

fig. 5 is an exploded view of a valve actuating mechanism of a safety direct valve actuator according to the present invention;

fig. 6 is a schematic structural diagram of a labor-saving mechanism of a safety straight-through valve starter according to the present invention;

fig. 7 is a schematic structural diagram of a manual actuating mechanism of a safety straight-through valve actuator according to the present invention;

fig. 8 is a schematic structural diagram of a valve tube of a safety straight-through valve actuator according to the present invention;

fig. 9 is an exploded view of a valve tube of a safety straight-through valve actuator according to the present invention.

Description of the figure numbers:

1. installing a shell; 2. a protective housing; 201. a cylindrical shell; 202. mounting blocks; 203. a display screen; 204. an indicator light; 205. a control button; 3. a water inlet pipe; 4. a water outlet pipe; 5. reinforcing ribs; 6. mounting a box; 7. a valve actuation mechanism; 701. a servo motor; 702. a labor-saving mechanism; 7021. a first connecting rod; 7022. a gear; 7023. a first worm gear; 7024. a first worm; 7025. a second worm gear; 7026. a second worm; 7027. a toothed ring; 7028. a planetary gear; 7029. a sun gear; 703. a manual starting mechanism; 7031. a manual adjusting rod; 7032. adjusting the turntable; 704. a second connecting rod; 705. a valve plate; 8. a valve tube; 801. a pipe body is arranged; 802. a lower pipe body; 803. connecting a sleeve; 804. fixing the bolt; 805. fixing a nut; 806. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.