CN212131487U

CN212131487U - Manual wheel type mechanism

Info

Publication number: CN212131487U
Application number: CN202020795885.XU
Authority: CN
Inventors: 朱粉华; 邹喜; 范小娟; 潘业雷; 张千
Original assignee: Wuxi Xhk Valve Co ltd
Current assignee: Wuxi Xhk Valve Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-11
Anticipated expiration: 2030-05-14

Abstract

The utility model provides a manual wheel type mechanism which has compact structure and can switch the driving mode of a valve, thereby effectively avoiding the situation that the valve can not work normally when the actuating mechanism breaks down; manual wheeled mechanism for connect the clamp splice, manual wheeled mechanism includes casing and hand wheel, the worm that is connected, the casing is the opening form, worm wheel, the lead screw that the transmission is connected are equipped with in the casing to form the lead screw pair, the worm passes the casing with worm wheel transmission connects, still be equipped with case spare in the casing, the worm wheel with case spare assembly connection, in order to drive case spare is followed lead screw axial motion, just case spare with the clamp splice is connected.

Description

Manual wheel type mechanism

Technical Field

The utility model relates to the technical field of valves, specifically be manual wheeled mechanism.

Background

The valve is a pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be used for controlling 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. The valve mainly controls the valve rod to move through the actuating mechanism, specifically, as shown in fig. 1, the output end of the actuating mechanism 1 is connected with the push rod 2, the push rod 2 is connected with the valve rod 4 through the clamping block 3, the actuating mechanism 1 is connected with the support 12, and then the corresponding opening and closing assembly is driven to move through the valve rod 4, so that the valve is opened and closed, but once the actuating mechanism signal fails, or when the actuating mechanism component is damaged, the valve cannot normally work, and therefore the normal operation of production is influenced.

Disclosure of Invention

In view of the above problem, the utility model provides a manual wheeled mechanism, its compact structure, the drive mode of changeable valve effectively avoids working as actuating mechanism breaks down and leads to the unable normal condition of working of valve.

The technical scheme is as follows: manual wheeled mechanism for connect the clamp splice, its characterized in that: manual wheeled mechanism includes casing and hand wheel, the worm that is connected, the casing is the opening form, worm wheel, the lead screw that the transmission is connected are equipped with in the casing to it is vice to form the lead screw, the worm passes the casing with worm wheel transmission is connected, still be equipped with case spare in the casing, the worm wheel with case spare assembly connection, in order to drive case spare is followed lead screw axial motion, just case spare with the clamp splice is connected.

It is further characterized in that:

a guide rod arranged in the same direction as the screw rod is arranged in the shell, and the box body part is connected with the guide rod in a sliding manner;

the end part of the box body part is of a U-shaped clamping claw structure, and the end part of the box body part extends out of the opening end of the shell and then is clamped on the clamping block.

The beneficial effects of the utility model are that, its simple structure, it is with low costs, it is rotatory to drive the worm through rotating the hand wheel, the worm drives the worm wheel rotation, the lead screw is connected to the worm wheel, and make helical motion on the lead screw to this drives box spare and makes up-and-down motion along the lead screw axial, and box spare is connected with the clamp splice, thereby can realize that manual opening or closing valve, has avoided breaking down when actuating mechanism and has leaded to the unable normal condition of work of valve, has better result of use.

Drawings

FIG. 1 is a partial schematic view of a prior art valve;

FIG. 2 is a schematic sectional view of the front view of the present invention;

fig. 3 is a schematic view of the sectional structure of the present invention.

Detailed Description

As shown in fig. 1, 2 and 3, the manual wheel type mechanism comprises a shell 5, and a hand wheel 6 and a worm 7 which are connected with each other, wherein the shell 5 is open, the shell 5 is mounted on a support 12, a worm wheel 8 and a screw rod 9 which are in transmission connection are mounted in the shell 5 to form a screw rod pair, the worm 7 penetrates through the shell 5 to be in transmission connection with the worm wheel 8, a box body 10 is further arranged in the shell 5, the worm wheel 8 is in assembly connection with the box body 10 to drive the box body 10 to move along the axial direction of the screw rod 9, and the box body 10 is connected with a clamping block 3.

A guide rod 11 arranged in the same direction as the screw rod 9 is arranged in the shell 5, and the box body part 10 is connected with the guide rod 11 in a sliding manner; the end part of the box body part 10 is in a U-shaped claw structure, and the end part of the box body part 10 extends out of the opening end of the shell 5 and then is clamped on the clamping block 3.

The hand wheel 6 is used for connecting a worm 7 and driving the worm 7 to rotate; the worm 7 is used for connecting the worm wheel 8 and driving the worm wheel 8 to rotate; the worm wheel 8 is connected with the worm 7 and is driven by the worm 7 to rotate; the screw rod 9 is used for being combined with the worm wheel 8 to form a screw rod pair, and the box body part 10 is driven to move up and down along the axial direction of the screw rod 9; the guide rod 11 is used for fixing the position of the box body part 10, preventing the box body part 10 from rotating and guiding the box body part 10;

the manual wheel type mechanism of the utility model has small volume, light weight, reasonable design and high efficiency, an operator can output larger actuating force by applying smaller force, and the manual wheel type mechanism is universal for a straight-stroke pneumatic actuator with positive action and reverse action and has long service life; when the pneumatic actuator is used in cooperation with a valve pneumatic actuator, the function of opening or closing the valve can be realized by manual operation instead when the air source signal of the pneumatic actuator breaks down or when the actuator components are damaged; specifically, the hand wheel 6 is rotated, the hand wheel 6 drives the worm 7 to rotate, the worm 7 drives the worm wheel 8 to rotate, the worm wheel 8 is connected with the screw rod 9 and performs spiral motion on the screw rod 9, so that the box body part 10 is driven to perform up-and-down motion along the axial direction of the screw rod 9, and the box body part 10 is connected with the clamping block 3 of the pneumatic actuator, so that the function of manually opening or closing the valve is realized.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Manual wheeled mechanism for connect the clamp splice, its characterized in that: manual wheeled mechanism includes casing and hand wheel, the worm that is connected, the casing is the opening form, worm wheel, the lead screw that the transmission is connected are equipped with in the casing to it is vice to form the lead screw, the worm passes the casing with worm wheel transmission is connected, still be equipped with case spare in the casing, the worm wheel with case spare assembly connection, in order to drive case spare is followed lead screw axial motion, just case spare with the clamp splice is connected.

2. The manual wheel mechanism of claim 1, wherein: the box body part is connected with the guide rod in a sliding mode.

3. The manual wheel mechanism of claim 1, wherein: the end part of the box body part is of a U-shaped clamping claw structure, and the end part of the box body part extends out of the opening end of the shell and then is clamped on the clamping block.