CN216407893U

CN216407893U - Hand wheel mechanism of valve actuator

Info

Publication number: CN216407893U
Application number: CN202122917024.1U
Authority: CN
Inventors: 朱枫; 施涛; 黄志浩
Original assignee: Felson Fluid Control System Suzhou Co ltd
Current assignee: Felson Fluid Control System Suzhou Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-29
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a valve actuator hand wheel mechanism which comprises a valve body, wherein a valve rod is installed in the valve body, the lower end of the valve rod is connected with a valve core, a rotating block is installed at the upper end of the valve rod, a tooth socket is formed in the upper end of the rotating block, a fixing cover is installed at the upper end of the valve body, a hollow rod is arranged at the upper end of the fixing cover, a hand wheel is installed at the upper end of the hollow rod, a sliding plate is arranged in the hollow rod and is in sliding connection with the inner wall of the hollow rod, fixing rods are symmetrically installed in the hollow rod in the left and right direction, a solid rod is installed at the lower end of the sliding plate, a gear is installed at the lower end of the solid rod, a bearing I is sleeved on the outer surface of the solid rod, a threaded rod is installed at the right part in the fixing cover, and a threaded sleeve is sleeved on the outer surface of the threaded rod. According to the utility model, the lock catch is opened through the key, the sliding door is opened, the solid rod is driven to move downwards through the handle, the gear is inserted into the tooth groove, and then the hand wheel is rotated to open or close the valve body, so that the safety is ensured, and the phenomenon that the valve body is suddenly closed to influence the work because the hand wheel is not rotated randomly by a worker is avoided.

Description

Hand wheel mechanism of valve actuator

Technical Field

The utility model relates to a hand wheel mechanism, in particular to a hand wheel mechanism of a valve actuator.

Background

As an important component of an automatic control system, a valve actuator is required to have stability, and it is needless to say that a handwheel mechanism on the valve actuator is generally used in manual operation under the condition of power failure, so that the stability of the handwheel mechanism is also important, and therefore, the improvement of the handwheel mechanism is needed. The existing hand wheel can be turned by anyone and can operate the opening or closing of the valve, so that the hand wheel is difficult to ensure that the hand wheel is not closed by others at will, and the work is influenced. Accordingly, the present invention provides a valve actuator handwheel mechanism that addresses the problems set forth above.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a handwheel mechanism for a valve actuator, which solves the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a valve actuator hand wheel mechanism comprises a valve body, wherein a valve rod is arranged in the valve body, the lower end of the valve rod is connected with a valve core, the upper end of the valve rod is provided with a rotating block, the upper end of the rotating block is provided with a tooth groove, the upper end of the valve body is provided with a fixed cover, the fixed cover is positioned outside the rotating block, the upper end of the fixed cover is provided with a hollow rod, the hollow rod is rotatably connected with the fixed cover, and the upper end of the hollow rod is provided with a hand wheel;

a sliding plate is arranged in the hollow rod and is in sliding connection with the inner wall of the hollow rod, fixed rods are symmetrically arranged in the hollow rod from left to right and penetrate through the sliding plate, a solid rod is arranged at the lower end of the sliding plate, the lower end of the solid rod penetrates through the hollow rod, a gear is arranged at the lower end of the solid rod, a first bearing is arranged on the outer surface of the solid rod in a sleeved mode, a threaded rod is arranged at the right part in the fixed cover in a sleeved mode, a threaded sleeve is arranged on the outer surface of the threaded rod in a sleeved mode, and the threaded sleeve is fixedly connected with the first bearing;

a first bevel gear is sleeved on the outer surface of the threaded rod, a protection cover is installed at the right end of the fixing cover, a transmission rod is transversely arranged in the protection cover, the left end of the transmission rod penetrates through the fixing cover, a sliding door is arranged at the upper end of the protection cover, the right part of the upper end of the sliding door is fixedly connected with the protection cover through a lock catch, a handle is arranged in the protection cover, a second bevel gear is installed at the lower end of the handle, a third bevel gear is installed on the outer surface of the transmission rod, one third bevel gear is meshed with the first bevel gear, and the other third bevel gear is meshed with the second bevel gear.

As a further scheme of the utility model, a guide rod is arranged at the left part in the fixed cover, a sliding sleeve is sleeved on the outer surface of the guide rod, and the sliding sleeve is fixedly connected with a first bearing.

As a further scheme of the utility model, the left end of the sliding door is rotatably connected with the protective cover through a hinge.

As a further scheme of the utility model, a second bearing is sleeved on the outer surface of the handle, and the second bearing is fixedly connected with the inner wall of the protective cover.

As a further scheme of the utility model, a plurality of gear teeth are arranged on the side surface of the hand wheel.

As a further scheme of the utility model, the left part of the upper end of the valve body is provided with a rotating rod which is rotatably connected with the valve body, and the upper end of the rotating rod is provided with a rotating block.

As a still further aspect of the present invention, a pinion is mounted on an outer surface of the rotating rod, and the pinion is engaged with the hand wheel through gear teeth.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the lock catch is opened through the key, the sliding door is opened, the solid rod is driven to move downwards through the handle, the gear is inserted into the tooth groove, and then the hand wheel is rotated to open or close the valve body, so that the safety is ensured, and the phenomenon that the valve body is suddenly closed to influence the work because the hand wheel is not rotated randomly by a worker is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a handwheel mechanism of a valve actuator in embodiment 1.

Fig. 2 is a schematic structural view of a protective cover in embodiment 1 of a handwheel mechanism of a valve actuator.

Fig. 3 is a schematic view of a hollow stem of a valve actuator handwheel mechanism in accordance with embodiment 1.

Fig. 4 is a schematic structural view of a valve actuator handwheel mechanism in accordance with embodiment 2.

In the figure:

1. a valve body; 11. a valve rod; 12. rotating the block; 13. a tooth socket;

2. a fixed cover; 21. a guide bar; 22. a sliding sleeve; 23. a threaded rod; 24. a threaded sleeve; 25. a first bevel gear;

3. a hand wheel; 31. a hollow shaft; 32. a sliding plate; 33. fixing the rod; 34. a solid bar; 35. a first bearing; 36. a gear; 37. gear teeth;

4. a protective cover; 41. sliding the door; 42. a handle; 43. a second bearing; 44. a second bevel gear;

5. a transmission rod; 51. a third bevel gear; 6. rotating the rod; 61. rotating the block; 62. a pinion gear.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 3, a handwheel mechanism of a valve actuator comprises a valve body 1, wherein a valve rod 11 is installed in the valve body 1, the lower end of the valve rod 11 is connected with a valve core, a rotating block 12 is installed at the upper end of the valve rod 11, a tooth socket 13 is formed at the upper end of the rotating block 12, a fixed cover 2 is installed at the upper end of the valve body 1, the fixed cover 2 is positioned outside the rotating block 12, a hollow rod 31 is arranged at the upper end of the fixed cover 2, the hollow rod 31 is rotatably connected with the fixed cover 2, a handwheel 3 is installed at the upper end of the hollow rod 31, a sliding plate 32 is arranged in the hollow rod 31, the sliding plate 32 is slidably connected with the inner wall of the hollow rod 31, fixing rods 33 are symmetrically installed in the hollow rod 31 from left to right, the fixing rods 33 penetrate through the sliding plate 32, a solid rod 34 is installed at the lower end of the sliding plate 32, the lower end of the solid rod 34 penetrates through the hollow rod 31, and a gear 36 is installed at the lower end of the solid rod 34;

the outer surface of the solid rod 34 is sleeved with a first bearing 35, the left part of the inner part of the fixed cover 2 is provided with the guide rod 21, the outer surface of the guide rod 21 is sleeved with a sliding sleeve 22, the sliding sleeve 22 is fixedly connected with the first bearing 35, the right part of the inner part of the fixed cover 2 is provided with a threaded rod 23, the outer surface of the threaded rod 23 is sleeved with a threaded sleeve 24, the threaded sleeve 24 is fixedly connected with the first bearing 35, the outer surface of the threaded rod 23 is sleeved with a first bevel gear 25, the right end of the fixed cover 2 is provided with a protective cover 4, the protective cover 4 is internally and transversely provided with a transmission rod 5, the left end of the transmission rod 5 penetrates through the fixed cover 2, the upper end of the protective cover 4 is provided with a sliding door 41, the left end of the sliding door 41 is rotatably connected with the protective cover 4 through a hinge, the right part of the upper end of the sliding door 41 is fixedly connected with the protective cover 4 through a lock catch, the handle 42 is arranged in the protective cover 4, the lower end of the handle 42 is provided with a second bevel gear 44, the outer surface of the handle 42 is sleeved with a second bearing 43, the inner wall of the protective cover 4 is fixedly connected with two bevel gears 51, one third bevel gear 51 engages first bevel gear 25 and the other third bevel gear 51 engages second bevel gear 44.

The working principle of the utility model is as follows: if a person outside directly rotates the hand wheel 3, because the gear 36 is not clamped into the toothed groove 13, the gear 36 cannot drive the valve rod 11 to rotate, the valve core cannot be rotated, a user opens the lock catch through a key, opens the sliding door 41, drives the threaded rod 23 to rotate through the handle 42, the bevel gear II 44, the bevel gear III 51, the transmission rod 5 and the bevel gear I25, the threaded rod 23 drives the solid rod 34 to move downwards through the threaded sleeve 24 and the bearing I35, so that the gear 36 is inserted into the toothed groove 13, then rotates the hand wheel 3, drives the gear 36 to rotate through the hollow rod 31, the fixed rod 33, the sliding plate 32 and the solid rod 34, the gear 36 and the toothed groove 13 are in clamping fit, so that the gear 36 can drive the rotating block 12 to rotate, the rotating block 12 rotates the valve through the valve rod 11, so that the valve body 1 is opened or closed, the safety is ensured, and the situation that the valve body 1 is closed suddenly due to the fact that a worker does not rotate the hand wheel 3 is avoided, affecting the operation.

Example 2

Referring to fig. 4, the difference from embodiment 1 is that a plurality of gear teeth 37 are installed on a side surface of the hand wheel 3, a rotating rod 6 is arranged at the left portion of the upper end of the valve body 1, the rotating rod 6 is rotatably connected to the valve body 1, a rotating block 61 is installed at the upper end of the rotating rod 6, a pinion 62 is installed on the outer surface of the rotating rod 6, the pinion 62 is meshed with the hand wheel 3 through the gear teeth 37, the pinion 62 is driven to rotate through the rotating block 61 and the rotating rod 6, the hand wheel 3 is driven to rotate through the gear teeth 37 by the pinion 62, and the hand wheel 3 is rotated through the multi-rotation pinion 62, so that physical strength is saved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A hand wheel mechanism of a valve actuator comprises a valve body (1) and is characterized in that a valve rod (11) is installed in the valve body (1), the lower end of the valve rod (11) is connected with a valve core, a rotating block (12) is installed at the upper end of the valve rod (11), a tooth socket (13) is formed in the upper end of the rotating block (12), a fixed cover (2) is installed at the upper end of the valve body (1), the fixed cover (2) is located outside the rotating block (12), a hollow rod (31) is arranged at the upper end of the fixed cover (2), the hollow rod (31) is rotatably connected with the fixed cover (2), and a hand wheel (3) is installed at the upper end of the hollow rod (31);

a sliding plate (32) is arranged in the hollow rod (31), the sliding plate (32) is connected with the inner wall of the hollow rod (31) in a sliding manner, fixing rods (33) are symmetrically arranged in the hollow rod (31) in a left-right mode, the fixing rods (33) penetrate through the sliding plate (32), a solid rod (34) is arranged at the lower end of the sliding plate (32), the lower end of the solid rod (34) penetrates through the hollow rod (31), a gear (36) is arranged at the lower end of the solid rod (34), a first bearing (35) is sleeved on the outer surface of the solid rod (34), a threaded rod (23) is arranged at the right part of the inner part of the fixed cover (2), a threaded sleeve (24) is sleeved on the outer surface of the threaded rod (23), and the first bearing (35) is fixedly connected with the threaded sleeve (24);

bevel gear (25) are established to threaded rod (23) surface cover, fixed cover (2) right-hand member installation safety cover (4), transversely set up transfer line (5) in safety cover (4), and transfer line (5) left end passes fixed cover (2), safety cover (4) upper end sets up sliding door (41), sliding door (41) upper end right part is through hasp and safety cover (4) fixed connection, set up handle (42) in safety cover (4), handle (42) lower extreme installation bevel gear two (44), two bevel gear three (51) of transfer line (5) surface mounting, a bevel gear three (51) meshing bevel gear (25), another bevel gear three (51) meshing bevel gear two (44).

2. The hand wheel mechanism of the valve actuator according to claim 1, wherein a guide rod (21) is installed at the left part in the fixed cover (2), a sliding sleeve (22) is sleeved on the outer surface of the guide rod (21), and the sliding sleeve (22) is fixedly connected with a first bearing (35).

3. A valve actuator handwheel mechanism according to claim 1, wherein the left end of the pull gate (41) is pivotally connected to the shield (4) by a hinge.

4. The valve actuator handwheel mechanism according to claim 1, wherein a second bearing (43) is sleeved on the outer surface of the handle (42), and the second bearing (43) is fixedly connected with the inner wall of the protective cover (4).

5. A valve actuator handwheel mechanism according to claim 1, wherein the handwheel (3) is flanked by a plurality of gear teeth (37).

6. The valve actuator handwheel mechanism according to claim 1, characterized in that a rotating rod (6) is arranged at the left part of the upper end of the valve body (1), the rotating rod (6) is rotatably connected with the valve body (1), and a rotating block (61) is arranged at the upper end of the rotating rod (6).

7. A valve actuator handwheel mechanism according to claim 6, wherein a pinion (62) is mounted on the outer surface of the rotatable lever (6), and the pinion (62) is engaged with the handwheel (3) via gear teeth (37).