CN219841128U

CN219841128U - Stop valve capable of maintaining valve position after switching without continuously applying power

Info

Publication number: CN219841128U
Application number: CN202320832090.5U
Authority: CN
Inventors: 范宏; 范家诚
Original assignee: Zhejiang Wonston Valve Co ltd
Current assignee: Zhejiang Wonston Valve Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-10-17
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a stop valve capable of maintaining a valve position after switching without continuously applying power, which comprises a valve body, a power assisting mechanism, a locking mechanism and a leakage-proof mechanism, wherein a valve cover is arranged at the upper end of the outer wall of the valve body, a valve rod penetrates through the inner wall of the valve cover, a limit gear is welded on the outer wall of the valve rod, a hand wheel is arranged at the top end of the valve rod, the power assisting mechanism is arranged on two sides of the outer wall of the hand wheel, the locking mechanism is arranged at the upper end of the valve cover, the stop valve capable of maintaining the valve position after switching without continuously applying power can be arranged through the arrangement of the locking mechanism, when the valve position is completely adjusted through rotation of the hand wheel, the locking block can be conveniently fixed on the limit gear through the locking block and an elastic telescopic structure formed by a spring and the locking structure, the hand wheel is limited and locked, the occurrence of unstable shaking valve position of the hand wheel caused by medium impact in the valve body is avoided, and the continuous locking capacity and working stability of the device are effectively improved.

Description

Stop valve capable of maintaining valve position after switching without continuously applying power

Technical Field

The utility model belongs to the technical field of stop valves, and particularly relates to a stop valve capable of maintaining a valve position after switching without continuously applying power.

Background

The opening and closing member of the stop valve is a plug-shaped valve clack, the sealing surface is a plane or a conical surface, the valve clack moves linearly along the central line of the fluid, the valve rod moves in a lifting rod type, and also a lifting rotary rod type, the stop valve is only suitable for full opening and full closing and is not allowed to be regulated and throttled, and in order to improve the practicability of the stop valve and maintain the valve position stability, the stop valve capable of maintaining the valve position after switching without continuously applying power is required to be provided.

The stop valve that uses at present all has, and the valve rod produces not hard up easily under the flow impact of medium to lead to the stop valve internal valve position to produce the change, lead to the valve body overall structure unstable, and in the use, the valve body both ends leakproofness is not enough, leads to the problem that the medium revealed easily.

Disclosure of Invention

The utility model aims to provide a stop valve capable of maintaining a valve position after switching without continuously applying power, so as to solve the problems that the valve rod is easy to loosen under the impact of medium flow, so that the valve position in the stop valve is changed, the whole structure of the valve body is unstable, the tightness of two ends of the valve body is insufficient and the medium is easy to leak in the use process of the stop valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a stop valve that need not to continuously exert power and can maintain valve position after switching, includes valve body, helping hand mechanism, locking mechanism and leakage protection mechanism, the valve gap is installed to valve body outer wall upper end, and wears to be equipped with the valve rod in the valve gap inner wall, valve rod outer wall welding has spacing gear, the valve rod top is provided with the hand wheel, helping hand mechanism installs in the outer wall both sides of hand wheel, locking mechanism installs the upper end at the valve gap, leakage protection mechanism installs at the outer wall both ends of valve body.

Preferably, the power assisting mechanism comprises a fixing frame, a rotating shaft and a movable handle, wherein the fixing frame is arranged on two sides of the outer wall of the hand wheel, the rotating shaft is arranged at the upper end of the outer wall of the fixing frame, and the movable handle is connected with the upper end of the outer wall of the rotating shaft.

Preferably, the movable handle forms a rotary structure with the fixed frame through a rotating shaft, and the length of the movable handle is smaller than the radius of the hand wheel.

Preferably, the locking mechanism comprises a locking frame, a spring, a movable frame, a pull ring and a locking block, wherein the locking frame is arranged at the upper end of the outer wall of the valve cover, the bottom end of the inner wall of the locking frame is welded with the spring, the upper end of the outer wall of the spring is connected with the movable frame, the outer wall of the movable frame is connected with the pull ring, and the bottom end of the movable frame is connected with the locking block.

Preferably, the locking block and the locking frame form a telescopic structure through a spring, and the spring is symmetrically arranged by taking the central axis of the locking frame as an axis.

Preferably, the leakage prevention mechanism comprises leakage prevention frames, sealing rings and fixing bolts, wherein the two groups of leakage prevention frames are sleeved at two ends of the outer wall of the valve body, the sealing rings are adhered to the inner walls of the leakage prevention frames, and the two groups of leakage prevention frames are connected by the fixing bolts.

Preferably, the fixing bolt is in threaded connection with the anti-leakage frame, and the outer wall of the fixing bolt and the inner wall of the anti-leakage frame are provided with matched threads.

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

1. according to the stop valve capable of maintaining the valve position after switching without continuously applying power, through the arrangement of the power assisting mechanism, the rotary structure matched with the rotating shaft can be unfolded at two sides of the hand wheel through the movable handle, so that the stressed area of the hand wheel is increased, a worker can conveniently and rapidly operate the hand wheel to control and adjust the valve position, and when the stop valve is not required to be used, the stop valve can be conveniently and rapidly stored in the hand wheel through the rotary structure, and the labor burden of the worker is effectively reduced;

2. this need not to continuously exert the stop valve that power can maintain the valve position after switching, through the setting of locking mechanism, such setting can be when the hand wheel rotation adjustment finishes the valve position, can be through the elastic expansion structure that locking piece cooperation spring and locking framework become convenient fix the locking piece on spacing gear, carry out spacing lock to the hand wheel and die, avoid medium impact in the valve body to lead to the hand wheel to rock the unstable condition emergence of valve position, improved the device continuously locking ability and job stabilization nature effectively.

3. This need not to continuously exert the stop valve that power can maintain the valve position after switching, through the setting of leak protection mechanism, such setting can play sealed effect through two sets of leak protection frame cooperation sealing washer in the leak protection mechanism, carries out closely connected fixedly with two sets of leak protection frames under fixing bolt's cooperation, and the sealing washer of leak protection frame inner wall can improve good sealed effect, avoids the link medium to produce the condition emergence of revealing, has improved the leak protection effect and the job stabilization nature of device effectively.

Drawings

FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic diagram of a connection structure of the power assisting mechanism of the present utility model;

FIG. 3 is a schematic view of a locking mechanism connection structure according to the present utility model;

FIG. 4 is a schematic view of the connection structure of the leak-proof mechanism of the present utility model.

In the figure: 1. a valve body; 2. a valve cover; 3. a valve stem; 4. a limit gear; 5. a hand wheel; 6. a power assisting mechanism; 601. a fixing frame; 602. a rotating shaft; 603. a movable handle; 7. a locking mechanism; 701. a locking frame; 702. a spring; 703. a movable frame; 704. a pull ring; 705. a locking block; 8. a leakage prevention mechanism; 801. a leakage prevention frame; 802. a seal ring; 803. and (5) fixing bolts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the stop valve capable of maintaining the valve position after switching without continuously applying power comprises a valve body 1, a power assisting mechanism 6, a locking mechanism 7 and a leakage-proof mechanism 8, wherein a valve cover 2 is arranged at the upper end of the outer wall of the valve body 1, a valve rod 3 penetrates through the inner wall of the valve cover 2, a limit gear 4 is welded on the outer wall of the valve rod 3, a hand wheel 5 is arranged at the top end of the valve rod 3, the power assisting mechanism 6 is arranged on two sides of the outer wall of the hand wheel 5, the power assisting mechanism 6 comprises a fixed frame 601, a rotating shaft 602 and a movable handle 603, the fixed frame 601 is arranged at the upper end of the outer wall of the fixed frame 601, the movable handle 603 is connected with the movable handle 603 to form a rotating structure through the rotating shaft 602, the length of the movable handle 603 is smaller than the radius of the hand wheel 5, the movable handle 603 can be matched with the rotating structure of the rotating shaft 602 to be unfolded at the two sides of the hand wheel 5, so that the stressed area of the hand wheel 5 is increased, the valve position is convenient to control and regulate by operating the hand wheel 5 more conveniently, and conveniently by workers, when the hand wheel 5 is not in use, the labor burden of the workers can be reduced by conveniently and accomodating the hand wheel 5 through the rotating structure when not in use;

the locking mechanism 7 is arranged at the upper end of the valve cover 2, the locking mechanism 7 comprises a locking frame 701, a spring 702, a movable frame 703, a pull ring 704 and a locking block 705, the locking frame 701 is arranged at the upper end of the outer wall of the valve cover 2, the bottom end of the inner wall of the locking frame 701 is welded with the spring 702, the upper end of the outer wall of the spring 702 is connected with the movable frame 703, the outer wall of the movable frame 703 is connected with the pull ring 704, the bottom end of the movable frame 703 is connected with the locking block 705, the locking block 705 and the locking frame 701 form a telescopic structure through the spring 702, the central axis of the locking frame 701 is arranged in an axisymmetric mode, when the valve position is adjusted through rotation of the hand wheel 5, the locking block 705 can be conveniently fixed on the limiting gear 4 through the elastic telescopic structure formed by the locking block 705 and the locking frame 701, the situation that the hand wheel 5 is unstable in a shaking valve position is caused by medium impact in the valve body 1 is avoided, and the continuous locking capacity and the working stability of the device are effectively improved;

the leak protection mechanism 8 is installed at the outer wall both ends of valve body 1, leak protection mechanism 8 includes leak protection frame 801, sealing washer 802 and fixing bolt 803, two sets of leak protection frame 801 cover are established at the outer wall both ends of valve body 1, and leak protection frame 801 inner wall bonds there is sealing washer 802, adopt fixing bolt 803 to connect between two sets of leak protection frames 801, be threaded connection between fixing bolt 803 and the leak protection frame 801, and assorted screw thread has all been seted up to fixing bolt 803 outer wall and leak protection frame 801 inner wall, such setting can be through two sets of leak protection frames 801 cooperation sealing washer 802 in the leak protection mechanism 8 play sealed effect, carry out closely connected fixed with two sets of leak protection frames 801 under the cooperation of fixing bolt 803, sealing washer 802 of leak protection frame 801 inner wall can improve good sealed effect, the condition that avoids the link medium to produce to reveal takes place, leak protection effect and job stabilization of the device have been improved effectively.

Working principle: when the stop valve which can maintain the valve position after switching can be used without continuously applying power, firstly, the device is arranged between two groups of connecting pipes, then equipment is started, media circulate through the device, wherein when the valve position is required to be adjusted by operating the hand wheel 5, the rotating structures of the 603 matched with the rotating shafts 602 are unfolded at two sides of the hand wheel 5 through the movable handles 603, so that the stress area of the hand wheel 5 is increased, then a worker can more conveniently control and adjust the valve position by operating the hand wheel 5, secondly, when the valve position is completed through rotating and adjusting the hand wheel 5, the locking block 705 can be conveniently fixed on the limiting gear 4 through the elastic telescopic structures formed by the locking block 705 matched with the spring 702 and the locking frame 701, limiting locking is carried out on the hand wheel 5, the condition that the valve position is unstable due to shaking of the hand wheel 5 caused by medium impact in the valve body 1 is avoided, finally, the two groups of the sealing frames 801 are tightly connected and fixed through the sealing rings 802 matched with the sealing rings 802 in the sealing mechanism 8, and good sealing effect can be improved, and the condition that the leakage of the media is avoided when the connecting ends are generated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stop valve capable of maintaining a valve position after switching without continuously applying power is characterized in that: including valve body (1), assist drive (6), locking mechanism (7) and leak protection mechanism (8), valve gap (2) are installed to valve body (1) outer wall upper end, and wear to be equipped with valve rod (3) in valve gap (2) inner wall, valve rod (3) outer wall welding has spacing gear (4), valve rod (3) top is provided with hand wheel (5), the outer wall both sides at hand wheel (5) are installed to assist drive (6), the upper end at valve gap (2) is installed to locking mechanism (7), leak protection mechanism (8) are installed at the outer wall both ends of valve body (1).

2. A shut-off valve for maintaining a post-switch valve position without the need for continuous application of power as set forth in claim 1, wherein: the power assisting mechanism (6) comprises a fixing frame (601), a rotating shaft (602) and a movable handle (603), wherein the fixing frame (601) is arranged on two sides of the outer wall of the hand wheel (5), the rotating shaft (602) is arranged at the upper end of the outer wall of the fixing frame (601), and the movable handle (603) is connected to the upper end of the outer wall of the rotating shaft (602).

3. A shut-off valve for maintaining a post-switch valve position without the need for continuous application of power as claimed in claim 2, wherein: the movable handle (603) and the fixed frame (601) form a rotating structure through the rotating shaft (602), and the length of the movable handle (603) is smaller than the radius of the hand wheel (5).

4. A shut-off valve for maintaining a post-switch valve position without the need for continuous application of power as set forth in claim 1, wherein: locking mechanism (7) are including locking frame (701), spring (702), movable frame (703), pull ring (704) and locking piece (705), outer wall upper end at valve gap (2) is installed to locking frame (701), and the welding of locking frame (701) inner wall bottom has spring (702), spring (702) outer wall upper end is connected with movable frame (703), and is connected with pull ring (704) on movable frame (703) outer wall, movable frame (703) bottom is connected with locking piece (705).

5. The shut-off valve of claim 4, wherein the post-switch valve position is maintained without the continuous application of power, wherein: the locking block (705) and the locking frame (701) form a telescopic structure through a spring (702), and the spring (702) is arranged with the central axis of the locking frame (701) as the axis symmetry.

6. A shut-off valve for maintaining a post-switch valve position without the need for continuous application of power as set forth in claim 1, wherein: the anti-leakage mechanism (8) comprises anti-leakage frames (801), sealing rings (802) and fixing bolts (803), wherein the two groups of anti-leakage frames (801) are sleeved at two ends of the outer wall of the valve body (1), the sealing rings (802) are adhered to the inner wall of each anti-leakage frame (801), and the two groups of anti-leakage frames (801) are connected through the fixing bolts (803).

7. The shut-off valve of claim 6, wherein the post-switch valve position is maintained without the continuous application of power, wherein: the fixing bolt (803) is in threaded connection with the anti-leakage frame (801), and matched threads are formed on the outer wall of the fixing bolt (803) and the inner wall of the anti-leakage frame (801).