CN218954184U

CN218954184U - Multi-rotary valve driving device for turning flexible lengthened valve rod

Info

Publication number: CN218954184U
Application number: CN202222954959.1U
Authority: CN
Inventors: 郑建军; 李泽玉; 张阳秀; 宣中宝; 林利平; 卢剑波
Original assignee: Zhejiang Flow Tech Machinery Co ltd
Current assignee: Zhejiang Flow Tech Machinery Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-05-02
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a multi-rotary valve driving device for a turning flexible lengthened valve rod, which comprises a driving assembly, a pipe sleeve assembly and a valve body connected with the pipe sleeve assembly, wherein the pipe sleeve assembly comprises a pipe sleeve lower flange, a pipe sleeve joint, a gland, a hanging ring, a drain outlet and an evacuation valve which are sequentially connected, the hanging ring, the drain outlet and the evacuation valve are fixed on the pipe sleeve, the pipe sleeve assembly is internally provided with a driving rod assembly, and the driving rod assembly comprises a driving sleeve, a driving rod lower joint, a driving rod and a driving rod upper joint which are sequentially and fixedly connected. According to the utility model, the flexible lengthened driving rod assembly replaces the lengthened valve rod to realize low-cost remote control of the valve body, so that the problems of manufacturing cost, processing difficulty and the like of the lengthened valve rod, which plague enterprises, are avoided; meanwhile, accurate lifting and control of valve opening are realized by designing a valve position indicating rod. In addition, the exhaust valve, the drain outlet and the hanging ring are designed at the pipe sleeve, so that the gas in the pipe sleeve is not backlogged, the transmission precision of the driving rod assembly is ensured, and the balance of the lifting process is ensured.

Description

Multi-rotary valve driving device for turning flexible lengthened valve rod

Technical Field

The utility model relates to a driving device, in particular to a multi-rotation valve driving device for a turning flexible lengthened valve rod.

Background

The valve actuating means is a means for operating the valve and is connected to the valve. The device can be driven by a manual, electric, pneumatic, hydraulic or a combination of power sources, and the movement process of the device can be controlled by the stroke, the torque or the axial thrust.

The connection between the valve and the driving device is generally realized by valve rods, transmission sleeves and other parts, so as to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. However, the existing valve rod has a shorter operation length, so that a user can have a difficult operation condition due to the shorter valve rod length when operating the valve rod, the use of the valve rod is inconvenient, the practicability of the valve rod is reduced, and the existing solutions are to design a longer valve rod to prolong the length of an operating device.

Disclosure of Invention

The utility model aims to provide a multi-rotation valve driving device for a turning flexible lengthened valve rod, which solves the manufacturing difficulty caused by too long valve rod in the existing lengthened valve rod method through the structural design of the flexible lengthened driving rod, reduces the processing cost, and simultaneously prompts an operator of the lifting height of the valve rod through designing a valve position indication rod structure so as to realize accurate lifting and control of the valve opening.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a multi-rotary valve driving device for a turning flexible lengthened valve rod, which comprises a driving component, a pipe sleeve component and a driving rod component arranged in the pipe sleeve component, wherein the pipe sleeve component comprises a hollow pipe sleeve, a pipe sleeve lower flange arranged at the lower end of the pipe sleeve and used for fixing the pipe sleeve component on a valve, a pipe sleeve joint arranged at the upper end of the pipe sleeve and a gland arranged at the upper end of the pipe sleeve joint, a hole is formed in the center of the gland, a convex edge is arranged at the top end of the gland, and parts of the gland except the convex edge are arranged in the pipe sleeve joint;

the driving rod assembly comprises a driving sleeve, a driving rod lower joint, a driving rod and a driving rod upper joint which are sequentially and coaxially connected from bottom to top, and the inner surface of the driving sleeve is provided with an inner thread matched with the outer thread of the valve rod of the valve; the lower end of the upper joint of the driving rod is connected with the driving rod, the middle section of the upper joint of the driving rod is sleeved in the hole of the gland, and the upper end of the upper joint of the driving rod is coaxially and fixedly connected with the driving assembly. More preferably, the driving component is a manual wheel or a motor-driven worm gear.

As a preferable scheme of the utility model, the driving sleeve is in an outer circle inner hexagon shape, the lower joint of the driving rod and the driving sleeve are in an outer hexagon shape, the driving rod is in an outer circle hollow inner hexagon structure, and the joint of the upper joint of the driving rod and the inner surface of the driving rod are in an outer hexagon structure.

As a preferable scheme of the utility model, a valve position indicating rod penetrating through the driving rod assembly is fixedly connected to the valve rod, the valve position indicating rod is positioned on the axis of the driving rod assembly, and a valve opening sign is arranged on the valve position indicating rod. More preferably, the upper joint of the driving rod is provided with a through hole for the valve position indicating rod to pass through along the axis; and a dust ring is arranged at the upper end of the through hole.

As a preferable scheme of the utility model, the lower pipe sleeve flange is fixedly connected with the valve body through the stud and the nut, a slotted hole for arranging a retaining screw is formed in the contact surface of the lower pipe sleeve flange and the valve, and the retaining screw is arranged in the slotted hole and props against the stud.

As the preferable scheme of the utility model, the pipe sleeve is provided with a hanging ring, a drain outlet and an exhaust valve; the drain valve and the hanging ring are arranged on one side close to the driving assembly and on the same horizontal line, the drain valve is communicated with the inside of the pipe sleeve through an NPT spiral sleeve arranged on the pipe sleeve, the drain outlet is parallel to the axis on the same side of the drain valve and the pipe sleeve, the drain outlet is arranged on one side close to the valve body of the pipe sleeve, and the drain outlet comprises a spiral sleeve and a drain spiral plug which are arranged on the pipe sleeve.

As the preferable scheme of the utility model, an O-shaped ring sealing element and a semi-open ring for limiting the upper joint of the driving rod are also arranged between the upper joint of the driving rod and the pipe sleeve joint, and the O-shaped ring sealing element and the semi-open ring are arranged below the gland; the upper joint of the driving rod and the driving assembly are fixed through a locking nut.

The utility model has the following beneficial effects:

in order to realize remote control of the valve body more economically, the processing difficulty caused by too long valve rod in the existing method for lengthening the valve rod is solved through the structure of the flexible lengthening driving rod assembly, the manufacturing cost of the long valve rod is reduced, and the production efficiency is improved; meanwhile, a valve position indicating rod with a valve angle mark is designed to prompt an operator of the lifting height of a valve rod and the opening of a valve, so that the accurate lifting and the control of the opening of the valve are realized. In addition, an exhaust valve is designed at the pipe sleeve, so that the exhaust can be periodically carried out to ensure that the pipe sleeve is not backlogged; a drain outlet is designed at the pipe sleeve, so that parts in the pipe sleeve can be cleaned according to working conditions, the service life of the parts is prolonged, and the transmission precision of the driving rod assembly is ensured; and the lifting rings are designed at proper positions of the pipe sleeves, so that the balance of the lifting process is ensured, and the lifting of the lengthened driving rod assembly is facilitated.

Drawings

FIG. 1 is a schematic illustration of a multi-turn valve actuator assembly for a variable direction flexible extension valve stem;

FIG. 2 is a schematic illustration of the pipe-in-pipe assembly of FIG. 1;

FIG. 3 is a schematic illustration of the upper portion of the elongate valve stem of FIG. 1;

fig. 4 is an enlarged partial schematic view of the upper joint of the drive rod of fig. 3.

Reference numerals: 1. a drive assembly; 2. a pipe sleeve assembly; 3. a valve body; 4. a drive rod assembly; 5. a set screw; 6. a stud; 7. a nut; 8. NPT screw sleeve; 9. a screw sleeve; 10. a pollution discharge screw plug; 21. a lower flange of the pipe sleeve; 22. a pipe sleeve; 23. a pipe sleeve joint; 24. a gland; 25. a hanging ring; 26. a sewage outlet; 27. an evacuation valve; 31. a valve stem; 41. a drive sleeve; 42. a drive rod lower joint; 43. a driving rod; 44. a drive rod upper joint; 45. an O-ring seal; 46. semi-open loop; 47. a lock nut; 48. a valve position indication rod; 49. a dust ring; 441. and a through hole.

Detailed Description

The utility model is further illustrated and described below in connection with specific embodiments. The described embodiments are merely exemplary of the present disclosure and do not limit the scope. The technical features of the embodiments of the utility model can be combined correspondingly on the premise of no mutual conflict.

As shown in fig. 1, a multi-swivel valve driving device for turning a flexible extension valve rod comprises a driving assembly 1 for applying driving force, a pipe sleeve assembly 2 and a driving rod assembly 4 arranged inside the pipe sleeve assembly 2 for driving the valve rod of a valve body,

in one embodiment of the present utility model, as shown in fig. 2, the pipe sleeve assembly 2 includes a pipe sleeve lower flange 21, a hollow pipe sleeve 22, a pipe sleeve joint 23 and a gland 24, which are sequentially connected from bottom to top; the lower pipe sleeve flange 21 is used for fixing the pipe sleeve assembly 2 on the valve; the outside of the sleeve 22 is also provided with a lifting ring 25 which is convenient for lifting the multi-rotary valve driving device, a drain 26 which is convenient for cleaning parts in the sleeve and an emptying valve 27 for periodic exhaust. The drain valve 27 and the hanging ring 25 are arranged on one side close to the driving assembly 1 and are positioned on the same horizontal line, the drain valve 27 is communicated with the inside of the pipe sleeve 22 through the NPT screw sleeve 8 arranged on the pipe sleeve 22, the drain outlet 26 and the drain valve 27 are positioned on the same side of the pipe sleeve 22 and are parallel to each other in axis, the drain outlet 26 is arranged on one side of the pipe sleeve 22 close to the valve body 3, and the drain outlet 26 comprises the screw sleeve 9 and the drain screw plug 10 which are arranged on the pipe sleeve 22.

When it is required to satisfy the requirement of remotely controlling the valve body 3 while avoiding the processing difficulty caused by the extension valve rod 31, the driving rod assembly 4 can extend the operation distance of the valve body 3 by extending the driving rod lower connector 42, the driving rod 43 and the driving rod upper connector 44 and by welding or flexible assembling and disassembling connection.

In one embodiment of the present utility model, as shown in fig. 3, the driving rod assembly 4 includes a driving sleeve 41, a driving rod lower joint 42, a driving rod 43 and a driving rod upper joint 44 which are coaxially connected in sequence from bottom to top, wherein the inner surface of the lower end of the driving sleeve 41 is provided with trapezoidal threads, the lower end of the driving sleeve 41 is in threaded engagement with the valve rod 31 inside the valve body 3, the upper end of the driving sleeve 41 is in an outer circular hexagon shape, both ends of the driving rod lower joint 42 are in an outer circular hexagon shape, one end of the driving rod lower joint 42 is arranged in the driving sleeve 41, the other end of the driving rod lower joint is arranged in the driving rod 43, the driving rod 43 is in an outer circular hollow hexagon structure, and one end of the driving rod upper joint 44 is arranged in the driving rod 43 and in an outer hexagon structure.

In a preferred embodiment of the present utility model, the center of the gland 24 is provided with a hole, the top end is provided with a convex edge, and the parts of the gland 24 except the convex edge are all arranged in the pipe sleeve joint 23; the driving rod upper joint 44 and the gland 24 are sleeved with the driving rod upper joint 44 and the pipe sleeve joint 23 along the central axis, an O-shaped ring sealing element 45 and a half-open ring 46 for limiting the driving rod upper joint 44 are further arranged between the driving rod upper joint 44 and the pipe sleeve joint 23, one end of the driving rod upper joint 44, which is far away from the driving rod 43, is connected with the driving assembly 1 and is axially fixed through a locking nut 47, and a through hole 441 is formed in the driving rod upper joint 44 along the central axis.

In one embodiment of the utility model, the valve rod 31, the lower driving rod joint 42, the driving rod 43 and the upper driving rod joint 44 are coaxial, one end of the valve rod 31 far away from the valve body 3 is fixedly connected with a valve position indicating rod 48 which sequentially penetrates through the lower driving rod joint 42, the driving rod 43 and the upper driving rod joint 44, a dust-proof ring 49 is arranged on the end surface of the valve position indicating rod 48 matched with the upper driving rod joint 44, and a valve opening identifier is arranged on the valve position indicating rod 48 and used for indicating the lifting height of the valve rod and the opening of a valve.

The parting surface a of the lower pipe sleeve flange 21 and the valve body 3 is provided with a check screw 5 penetrating from outside to inside, the check screw 5 props against the stud 6, the lower pipe sleeve flange 21 and the valve body 3 are fixedly connected through the stud 6, the nut 7 and the check screw 5, and the nut 7 and the check screw 5 can prevent the stud 6 from moving axially.

In one embodiment of the utility model, the drive assembly 1 is a manual wheel; more preferably, the driving assembly 1 is a motor-driven worm gear.

In summary, the valve rod is driven by the driving assembly 1, the pipe sleeve assembly 2 and the driving rod assembly 4, so that the length of the operating device is prolonged, and the long valve rod which is difficult to manufacture is replaced to operate in the past; the exhaust valve is designed at the pipe sleeve, so that the exhaust can be periodically carried out to ensure that the pipe sleeve is not backlogged; a drain outlet is designed at the pipe sleeve, so that parts in the pipe sleeve can be cleaned according to working conditions, the service life of the parts is prolonged, and the transmission precision of the driving rod assembly is ensured; the hanging ring is designed at the pipe sleeve, so that the multi-rotary valve driving device is more convenient to move; meanwhile, the valve position indicating rod structure is designed to prompt an operator of the lifting height of the valve rod, so that the accurate lifting and the control of the valve opening are realized.

The present utility model is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present utility model.

Claims

1. The multi-rotary valve driving device for the turning flexible lengthened valve rod is characterized by comprising a driving assembly (1), a pipe sleeve assembly (2) and a driving rod assembly (4) arranged inside the pipe sleeve assembly (2), wherein the pipe sleeve assembly (2) comprises a hollow pipe sleeve (22), a pipe sleeve lower flange (21) arranged at the lower end of the pipe sleeve (22) and used for fixing the pipe sleeve assembly (2) on a valve, a pipe sleeve joint (23) arranged at the upper end of the pipe sleeve (22) and a gland (24) arranged at the upper end of the pipe sleeve joint (23), a hole is formed in the center of the gland (24), a convex edge is arranged at the top end of the gland (24), and parts except the convex edge are arranged in the pipe sleeve joint (23);

the driving rod assembly (4) comprises a driving sleeve (41), a driving rod lower joint (42), a driving rod (43) and a driving rod upper joint (44) which are coaxially connected in sequence from bottom to top, and the inner surface of the driving sleeve (41) is provided with an inner thread matched with the outer thread of the valve rod of the valve; the lower end of the driving rod upper joint (44) is connected with the driving rod (43), the middle section of the driving rod upper joint (44) is sleeved in the hole of the gland (24), and the upper end of the driving rod upper joint (44) is coaxially and fixedly connected with the driving assembly (1).

2. The multi-rotary valve driving device for the direction-changing flexible lengthened valve rod according to claim 1, wherein the driving sleeve (41) is in an outer circle and inner hexagon shape, the lower driving rod connector (42) and the driving sleeve (41) are matched to form an outer hexagon shape, the driving rod (43) is in an outer circle and hollow inner hexagon structure, and the matched part of the upper driving rod connector (44) and the inner surface of the driving rod (43) is in an outer hexagon structure.

3. A multi-turn valve actuator of a variable direction flexible extension valve stem according to claim 1, wherein the valve stem (31) is fixedly connected with a valve position indication rod (48) penetrating through the actuator rod assembly (4), the valve position indication rod (48) is located on the axis of the actuator rod assembly (4) and the valve position indication rod (48) is provided with a valve opening identifier.

4. A multi-turn valve actuator assembly for a variable direction flexible extension valve stem as defined in claim 3, wherein: the upper joint (44) of the driving rod is provided with a through hole (411) for the valve position indicating rod (48) to pass through along the axis; and a dust ring (49) is arranged at the upper end of the through hole (411).

5. The multi-rotation valve driving device of the turning flexible lengthened valve rod according to claim 1, wherein the lower sleeve flange (21) is fixedly connected with the valve body through a stud (6) and a nut (7), a slotted hole for arranging a retaining screw (5) is formed in the contact surface of the lower sleeve flange (21) and the valve, and the retaining screw (5) is arranged in the slotted hole and props against the stud (6).

6. A multi-turn valve actuator of a reversible flexible extension valve stem according to claim 1, wherein the shroud (22) is provided with a lifting ring (25), a drain (26), and an evacuation valve (27); the utility model discloses a drain valve, including valve body (3) and drain, drain (26) are located valve body (3) one side is close to in pipe box (22), drain (26) are located valve body (3) one side at pipe box (22) and are located same water level, drain (27) is through NPT swivel nut (8) and pipe box (22) inside the communicating with each other that sets up on pipe box (22), drain (26) are located the homonymy and the axis parallel of pipe box (22) with drain (27), drain (26) are including swivel nut (9) and drain plug screw (10) that set up on pipe box (22).

7. A multi-turn valve driving device for a direction-changing flexible lengthened valve rod according to claim 1, characterized in that an O-ring sealing element (45) and a semi-open ring (46) for limiting the upper joint (44) of the driving rod are further arranged between the upper joint (44) of the driving rod and the pipe sleeve joint (23), and the O-ring sealing element (45) and the semi-open ring (46) are arranged below the gland (24); the upper joint (44) of the driving rod and the driving assembly (1) are fixed through a locking nut (47).

8. A multi-turn valve actuator for a flexible, reversible, elongated valve stem according to claim 1, wherein said actuator assembly (1) is a manual wheel or a motor driven worm gear.