CN217519325U

CN217519325U - Hand-gas integrated convertible valve actuating mechanism

Info

Publication number: CN217519325U
Application number: CN202221767416.2U
Authority: CN
Inventors: 陆应治; 龙运万; 李怀英
Original assignee: Hangzhou Fosson Valves Co ltd
Current assignee: Hangzhou Fosson Valves Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-30
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a hand-air integrated convertible valve actuating mechanism, which comprises a cylinder bracket, a pneumatic actuating mechanism arranged on the cylinder bracket and a manual actuating mechanism arranged on the pneumatic actuating mechanism; the pneumatic control device is characterized by also comprising driving mechanisms arranged on the pneumatic actuating mechanism and the manual actuating mechanism; the pneumatic actuating mechanism comprises a cylinder sleeve arranged on the cylinder bracket, a cylinder upper cover plate arranged on the cylinder sleeve and a piston arranged in the cylinder sleeve in a sliding manner; the manual actuating mechanism comprises a gear box bracket arranged on the upper cover plate of the air cylinder and a gear box arranged on the gear box bracket; the driving mechanism comprises a screw rod connected with the gear box through threads and a pull rod which is slidably installed in the screw rod and fixedly connected with the piston. The utility model discloses a through pneumatic actuator and manual actuator's integrated setting, realize hand gas integral type actuating mechanism, can select to use manual control or pneumatic control according to demand or real-time conditions, application scope is wide.

Description

Hand-gas integrated convertible valve actuating mechanism

Technical Field

The utility model relates to a valve specifically indicates a convertible valve actuating mechanism of hand gas integral type.

Background

The valve actuating mechanism is an actuating element for driving a valve to open or close, the current valve actuating element basically comprises power modes such as manual operation, pneumatic operation, electric operation and the like, the current valve basically only adopts one power mode as a power device of the valve actuating mechanism, the valve can be manually controlled to open or close only by manual operation, automatic control cannot be carried out, the valve cannot be manually controlled by pneumatic operation or electric operation, and the pneumatic operation or electric operation cannot be used at a position without an air source or a power source. Therefore, the hand-air integrated type convertible valve actuating mechanism is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a convertible valve actuating mechanism of hand gas integral type in order to solve above problem.

In order to achieve the purpose, the utility model provides a hand-air integrated convertible valve actuating mechanism, which comprises a cylinder bracket, a pneumatic actuating mechanism arranged on the cylinder bracket and a hand-operated actuating mechanism arranged on the pneumatic actuating mechanism; the pneumatic actuator is characterized by also comprising driving mechanisms arranged on the pneumatic actuator and the manual actuator; the pneumatic actuating mechanism comprises a cylinder sleeve arranged on the cylinder bracket, a cylinder upper cover plate arranged on the cylinder sleeve and a piston arranged in the cylinder sleeve in a sliding manner; the manual actuating mechanism comprises a gear box bracket arranged on the upper cover plate of the air cylinder and a gear box arranged on the gear box bracket; the driving mechanism comprises a screw rod connected with the gear box through threads and a pull rod which is slidably installed in the screw rod and fixedly connected with the piston.

Further preferably, the driving mechanism comprises a limit nut mounted on the pull rod for limiting the stroke of the pull rod.

Preferably, the pneumatic actuator further comprises a plurality of springs arranged between the piston and the upper cover plate of the cylinder, and air holes arranged on the upper cover plate of the cylinder and the cylinder bracket; and an air cylinder connecting shaft is further installed at one end of the pull rod, and a guide sleeve is further installed between the air cylinder connecting shaft and the air cylinder support.

Further preferably, the manual actuating mechanism further comprises a limiting guide sleeve arranged among the cylinder upper cover plate, the gear box bracket and the screw rod.

Further preferably, a limiting table is arranged on the screw rod, and one side of the limiting table is connected with the limiting guide sleeve in a sliding manner; and a vernier screw is installed on the limiting table, and a dead slot matched with the vernier screw is formed in the gear box support.

The utility model realizes the manual-pneumatic integrated actuating mechanism through the integrated arrangement of the pneumatic actuating mechanism and the manual actuating mechanism, can select and use manual control or pneumatic control according to the requirement or the real-time condition, and has wide application range;

through the arrangement of the driving mechanisms, one driving mechanism is suitable for two actuating mechanisms, the space is saved, the cost is reduced, meanwhile, the two driving modes can be flexibly switched according to the using mode, and the structure is simple and convenient;

the limit nut is arranged on the pull rod, so that when the pneumatic driving mechanism is used, the movement stroke of the pull rod is limited through the limit nut; when manual actuating mechanism uses, the screw rod is driven through the screw-thread fit of gear box and lead screw and is moved from top to bottom, and the lead screw drives limit nut and moves upwards when upwards moving, and limit nut drives the pull rod and moves upwards, drives the connecting piece of the upwards action of pull rod through limit nut as the lead screw, and when the lead screw moves downwards simultaneously, the pull rod moves downwards through the gravity of self thereupon, restricts through the minimum stroke that limit nut regarded as the pull rod and moves downwards.

Drawings

FIG. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic diagram of a partially enlarged structure at a in fig. 1 according to the present invention.

Illustration of the drawings: 1. a cylinder support; 11. a guide sleeve; 2. a pneumatic actuator; 21. a cylinder liner; 22. an upper cover plate of the cylinder; 23. a piston; 25. a spring; 26. air holes; 3. a manual actuator; 31. a gearbox bracket; 32. a gear case; 33. a limiting guide sleeve; 34. an empty groove; 4. a drive mechanism; 41. a screw rod; 42. a pull rod; 43. a limit nut; 44. a cylinder connecting shaft; 45. a limiting table; 46. a vernier screw.

Detailed Description

The hand-air integrated convertible valve actuating mechanism of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-2, a manual-pneumatic integrated convertible valve actuating mechanism includes a cylinder bracket 1, a pneumatic actuating mechanism 2 mounted on the cylinder bracket 1, and a manual actuating mechanism 3 mounted on the pneumatic actuating mechanism 2; the pneumatic control device is characterized by also comprising a driving mechanism 4 arranged on the pneumatic actuating mechanism 2 and the manual actuating mechanism 3; the pneumatic actuator 2 comprises a cylinder sleeve 21 arranged on the cylinder bracket 1, a cylinder upper cover plate 22 arranged on the cylinder sleeve 21 through a bolt and a piston 23 arranged in the cylinder sleeve 21 in a sliding way; the manual actuator 3 comprises a gear box bracket 31 mounted on the cylinder upper cover plate 22 through bolts and a gear box 32 mounted on the gear box bracket 31 through bolts; the driving mechanism 4 comprises a screw rod 41 connected with the gear box 32 through threads and a pull rod 42 which is installed in the screw rod 41 in a sliding mode and is fixedly connected with the piston 23; the manual-pneumatic integrated executing mechanism is realized by the integrated arrangement of the pneumatic executing mechanism 2 and the manual executing mechanism 3, manual control or pneumatic control can be selected according to requirements or real-time conditions, and the application range is wide; through the setting of actuating mechanism 4, an actuating mechanism 4 is applicable to two actuating mechanism, saves space, and reduce cost makes two kinds of drive modes can carry out nimble switching according to the using-way simultaneously, and simple structure is convenient.

Further, the driving mechanism 4 comprises a limit nut 43 which is installed on the pull rod 42 through threads and used for limiting the stroke of the pull rod 42; by arranging the limit nut on the pull rod, when the pneumatic actuating mechanism 2 is used, the moving stroke of the pull rod 42 is limited by the limit nut 43; when the manual actuating mechanism 3 is used, the screw rod 41 is driven to move up and down through the threaded matching of the gear box 32 and the screw rod 41, the screw rod 41 drives the limit nut 43 to move up when moving up, the limit nut 43 drives the pull rod 42 to move up, the limit nut 43 is used as a connecting piece for driving the pull rod 42 to move up through the screw rod 41, and meanwhile, when the screw rod 41 moves down, the pull rod 42 moves down along with the self gravity, and the limit nut 43 is used as the lowest stroke of the pull rod 42 to move down to limit.

Further, the pneumatic actuator 2 further comprises a plurality of springs 25 arranged between the piston 23 and the cylinder upper cover plate 22, and air holes 26 arranged on the cylinder upper cover plate 22 and the cylinder support 1; an air cylinder connecting shaft 44 is further installed at one end of the pull rod 42, and a guide sleeve 11 is further installed between the air cylinder connecting shaft 44 and the air cylinder support 1; the guide sleeve 11 is arranged to guide the cylinder connecting shaft 44; through setting up gas pocket 26 on cylinder upper cover plate 22 and cylinder support 1, be connected gas pocket 26 through the pipeline with air feeder during the use, through air feeder to the top or the below air feed of piston 23 in cylinder liner 21 to make the pressure in piston 23 upper and lower chamber change, thereby drive piston 23 and carry out the up-and-down motion in cylinder liner 21, thereby piston 23 drives cylinder connecting axle 44 and carries out the up-and-down motion.

Further, the manual actuator 3 further comprises a limiting guide sleeve 33 arranged between the cylinder upper cover plate 22, the gear box bracket 31 and the screw rod 41; the limiting guide sleeve 33 is used for guiding the up-and-down movement of the screw rod 41 and limiting the lowest stroke of the downward movement of the screw rod.

Further, a limiting table 45 is arranged on the screw rod 41, and one side of the limiting table 45 is connected with the limiting guide sleeve 33 in a sliding manner; a vernier screw 46 is installed on the limiting table 45, and a hollow groove 34 matched with the vernier screw 46 is formed in the gear box bracket 31; the lowest travel of the screw rod 41 moving downwards is limited by the arrangement of the limiting table 45 and the limiting guide sleeve 33; through the setting of vernier screw 46, when manual control, the operating personnel can learn whether the valve is opened or the opening degree of opening through observing the position of vernier screw 46.

The utility model discloses a use: firstly, the device is installed on a valve, and when the device is installed, the cylinder bracket 1 is fixedly connected with the valve, and the cylinder connecting shaft 44 is fixedly connected with a valve rod;

during manual control; an operator drives a gear in the gear box 32 to rotate through a hand wheel by rotating the hand wheel arranged on the gear box 32, the gear drives the screw rod 41 to move up and down through the thread fit with the screw rod 41 when rotating, the screw rod 41 drives the limit nut 43 to move up when moving up, the limit nut 43 drives the pull rod 42 to move up, the pull rod 42 drives the piston 23 and the air rod connecting shaft 44 to move up, and the air cylinder connecting shaft 44 drives the valve rod to move up, so that the valve is opened or closed; on the contrary, the operator rotates the hand wheel reversely, the hand wheel drives the gear to rotate reversely, the gear drives the screw rod 41 to move downwards, the screw rod 41 does not apply jacking force to the limit nut 43 any longer when moving downwards, the limit nut 43 moves downwards along with the gravity and the spring force of the pull rod 42, the piston 23, the valve rod valve core and the like, so that the valve is closed or opened, and the downward movement stroke of the screw rod 41 can be known by observing the position of the vernier screw 46;

when the control is carried out through pneumatic operation, firstly, the air cylinder upper cover plate 22 and the air hole 26 on the air cylinder support 1 are connected with an air supply device through pipelines, when the air supply device is used for inflating a cavity below the piston 23, the pressure in the lower cavity is increased, the piston 23 is pushed to move upwards, the piston 23 drives the air cylinder connecting shaft 44 and the pull rod 42 to move upwards, and the air cylinder connecting shaft 44 drives the valve rod and the valve core to move upwards, so that the valve is opened or closed; on the contrary, when the gas supply device does not inflate the lower cavity any more, the piston 23 resets through the reset force of the spring, the piston 23 drives the cylinder connecting shaft and the pull rod 42 to move downwards, the cylinder connecting shaft 44 drives the valve rod and the valve core to move downwards, and the position of the limit nut 43 is limited through the end part of the screw rod 41 after the limit nut 43 on the pull rod 42 contacts with the screw rod 41, so that the minimum moving stroke of the pull rod 42 is limited, and the valve core is prevented from being collided with the valve seat in the valve body due to over travel.

The scope of protection of the present invention is not limited to the above embodiments and their modifications. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.

Claims

1. A manual-pneumatic integrated convertible valve actuating mechanism comprises a cylinder support (1), a pneumatic actuating mechanism (2) installed on the cylinder support (1) and a manual actuating mechanism (3) installed on the pneumatic actuating mechanism (2); it is characterized by also comprising a driving mechanism (4) arranged on the pneumatic actuating mechanism (2) and the manual actuating mechanism (3); the pneumatic actuating mechanism (2) comprises a cylinder sleeve (21) arranged on the cylinder bracket (1), a cylinder upper cover plate (22) arranged on the cylinder sleeve (21) and a piston (23) arranged in the cylinder sleeve (21) in a sliding manner; the manual actuating mechanism (3) comprises a gear box bracket (31) arranged on the cylinder upper cover plate (22) and a gear box (32) arranged on the gear box bracket (31); the driving mechanism (4) comprises a screw rod (41) connected with the gear box (32) through threads and a pull rod (42) which is installed in the screw rod (41) in a sliding mode and fixedly connected with the piston (23).

2. The hand-pneumatic integrated convertible valve actuator of claim 1 further comprising: the driving mechanism (4) comprises a limiting nut (43) which is arranged on the pull rod (42) and used for limiting the stroke of the pull rod (42).

3. The hand-pneumatic integrated convertible valve actuator of claim 1 further comprising: the pneumatic actuating mechanism (2) also comprises a plurality of springs (25) arranged between the piston (23) and the cylinder upper cover plate (22) and air holes (26) arranged on the cylinder upper cover plate (22) and the cylinder bracket (1); and an air cylinder connecting shaft (44) is further installed at one end of the pull rod (42), and a guide sleeve (11) is further installed between the air cylinder connecting shaft (44) and the air cylinder support (1).

4. The hand-pneumatic integrated convertible valve actuator of claim 1 further comprising: the manual actuating mechanism (3) further comprises a limiting guide sleeve (33) arranged among the cylinder upper cover plate (22), the gear box bracket (31) and the screw rod (41).

5. The hand-pneumatic integrated convertible valve actuator of claim 4 wherein: a limiting table (45) is arranged on the screw rod (41), and one side of the limiting table (45) is connected with the limiting guide sleeve (33) in a sliding manner; and a vernier screw (46) is installed on the limiting table (45), and a hollow groove (34) matched with the vernier screw (46) is formed in the gear box support (31).