CN212868707U

CN212868707U - Stop valve

Info

Publication number: CN212868707U
Application number: CN202021464335.6U
Authority: CN
Inventors: 李世斌; 朱贤松; 付国锋; 李岩; 洪涛
Original assignee: Wenzhou Luoke Valve Technology Co ltd
Current assignee: Wenzhou Luoke Valve Technology Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-04-02
Anticipated expiration: 2030-07-22

Abstract

The utility model relates to a technical field of stop valve discloses a stop valve, and it includes valve body and valve gap, bolted connection is passed through with the valve body top to the valve gap, the inside valve plate that is provided with of valve body, the valve plate rotates towards the one end of valve gap and is connected with the valve rod, valve rod threaded connection is on the valve cap, be provided with restriction valve rod pivoted limit structure on the valve rod, valve rod upper end fixedly connected with sliding seat, the sliding seat has seted up the activity hole towards the terminal surface of valve rod, the downthehole threaded connection of activity has the movable rod, the fixed slot that supplies the movable rod embedding is seted up to the periphery of valve rod, the up end of fixed slot and the up end intercommunication of valve rod, this application has the effect that prevents.

Description

Stop valve

Technical Field

The application relates to the technical field of stop valves, especially, relate to a stop valve.

Background

At present, a stop valve is one of the most widely used valves, and the stop valve has the advantages of small friction force between sealing surfaces in the opening and closing process, durability, small opening height, easiness in manufacturing, convenience in maintenance, suitability for medium and low pressure and suitability for high pressure.

The existing stop valve comprises a valve body, a valve plate, a valve rod, a valve cover and a hand wheel, wherein the valve plate is rotationally connected with the valve rod, and the hand wheel is connected with one end, far away from the valve plate, of the valve rod.

The above related technical solutions have the following drawbacks: the valve has the problem of mistaken touch, and the hand wheel is triggered to rotate under the careless condition, so that the valve is opened or closed, and daily use is influenced.

SUMMERY OF THE UTILITY MODEL

In order to improve the staff and touch the problem that makes the valve rod pivoted by mistake, this application provides a stop valve.

The application provides a stop valve adopts following technical scheme:

the utility model provides a stop valve, includes valve body and valve gap, bolted connection is passed through with the valve body top to the valve gap, the inside valve plate that is provided with of valve body, the valve plate rotates towards the one end of valve gap and is connected with the valve rod, valve rod threaded connection is on the valve gap, be provided with restriction valve rod pivoted limit structure on the valve rod, valve rod upper end fixedly connected with sliding seat, the movable hole has been seted up towards the terminal surface of valve rod to the sliding seat, threaded connection has the movable rod in the movable hole, the fixed slot that supplies the movable rod embedding is seted up to the periphery of valve rod, the up end of fixed slot and the up end intercommunication of.

By adopting the technical scheme, when the valve plate blocks the interior of the valve body, the movable rod is driven to be embedded into the fixed groove, the valve rod is limited to rotate, and the blocking effect of the valve plate is prevented from being reduced due to the impact force of fluid in the stop valve on the valve plate; the limiting structure has a certain safety effect, and the stop valve is prevented from being opened or closed by being touched by a person by mistake; in addition, the movable rod is adopted, so that the operation of workers can be facilitated, the movable rod is quickly embedded into the fixed groove or separated from the fixed groove, and the time and labor are saved.

Preferably, the movable rod rotates towards one end of the valve rod and is connected with a movable block, and when the movable block is embedded into the fixed groove, two opposite end faces of the fixed groove are respectively attached to two end faces of the movable block.

Through adopting above-mentioned technical scheme, the movable block is bigger with fixed slot inner wall area of contact than in movable rod and fixed slot inner wall area of contact, and restriction valve rod pivoted effect is better, is more difficult for being damaged.

Preferably, the movable block is provided with a chamfer facing the edge of the valve rod.

Through adopting above-mentioned technical scheme, set up the chamfer and can be convenient for the movable block and imbed in the fixed slot.

Preferably, one end of the movable rod, which is far away from the valve rod, is fixedly connected with a movable disc.

By adopting the technical scheme, the movable disc is arranged to increase the contact area with hands, so that a worker can drive the movable rod to rotate conveniently.

Preferably, a spring is arranged between the movable disc and the movable seat.

Through adopting above-mentioned technical scheme, when the movable block was embedded into the fixed slot, the spring was in compression state, and the spring applys the effort to the activity dish, prevents that the movable rod from rotating.

Preferably, the spring is sleeved outside the movable rod.

Through adopting above-mentioned technical scheme, the spring housing is located the movable rod and is spacing to the position of spring outward, and when the spring was connected insecure with expansion disk or sliding seat, the spring can not drop.

Preferably, the limiting structures are arranged in a plurality and distributed along the axis circumference array of the valve rod.

Through adopting above-mentioned technical scheme, set up a plurality of limit structure and can supply the staff to select to manage the nearest movable block of fixed slot spacing to the valve rod.

Preferably, one end of the valve rod, which is far away from the valve plate, is fixedly connected with a hand wheel.

Through adopting above-mentioned technical scheme, can be convenient for staff to drive the valve rod rotation through the hand wheel.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the valve plate blocks the inside of the valve body, the movable rod is driven to be embedded into the fixed groove, the valve rod is limited to rotate, and the blocking effect of the valve plate is prevented from being reduced due to the impact force of fluid in the stop valve on the valve plate; the limiting structure has a certain safety effect, and the stop valve is prevented from being opened or closed by being touched by a person by mistake; in addition, the movable rod is adopted, so that the operation of workers can be facilitated, the movable rod is quickly embedded into or separated from the fixed groove, and the time-saving and labor-saving effects are achieved;

2. acting force is applied to the movable disc and the movable seat through the spring, and the movable rod is prevented from rotating.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a cross-sectional view highlighting the interior of the valve body;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Reference numerals: 1. a valve body; 2. a valve cover; 3. a valve plate; 4. a valve stem; 41. fixing grooves; 5. a limiting structure; 51. a movable seat; 511. a movable hole; 52. a movable rod; 53. a movable block; 531. chamfering; 54. a movable tray; 55. a spring; 6. a handwheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment discloses a stop valve. Referring to fig. 1 and 2, the stop valve includes a valve body 1 and a bonnet 2, and the bonnet 2 is connected to the top of the valve body 1 through a bolt. Valve plate 3 is provided with to valve body 1 inside, and valve plate 3 rotates towards the one end of valve gap 2 and is connected with valve rod 4, and valve rod 4 threaded connection is on valve gap 2.

Referring to fig. 1 and 3, two limit structures 5 for limiting the rotation of the valve rod 4 are arranged on the valve rod 4, and the two limit structures 5 are distributed in a circumferential array on the axis of the valve rod 4. The upper end of the valve rod 4 is fixedly connected with a movable seat 51, and a movable hole 511 is formed in the end face, facing the valve rod 4, of the movable seat 51. The movable rod 52 is connected to the movable hole 511 through an internal thread, the circumferential surface of the valve rod 4 is provided with a fixed groove 41 into which the movable rod 52 is inserted, and the upper end surface of the fixed groove 41 is communicated with the upper end surface of the valve rod 4.

Referring to fig. 1 and 3, the movable block 53 is pivotally connected to one end of the movable rod 52 facing the valve rod 4, and when the movable block 53 is fitted into the fixed groove 41, both end surfaces of the fixed groove 41 facing each other are respectively brought into contact with both end surfaces of the movable block 53. The movable block 53 is chamfered 531 at the edge facing the valve rod 4. Set up chamfer 531 be convenient for imbed the movable block 53 in the fixed slot 41, make the laminating of movable block 53 lateral wall and fixed slot 41 inner wall, promote limit structure 5 to valve rod 4's spacing effect.

Referring to fig. 1 and 3, a movable disc 54 is fixedly connected to an end of the movable rod 52 away from the valve rod 4, so that the contact area between a human hand and the movable rod 52 is increased, and it is convenient for a worker to drive the movable rod 52 to rotate. A spring 55 is arranged between the movable disc 54 and the movable seat 51, and the spring 55 is sleeved outside the movable rod 52. When the fixed block limits the valve rod 4, the fixed disc is acted by a spring 55 to prevent the movable rod 52 from rotating, so that the movable block 53 is more stable in limiting.

Referring to fig. 2 and 3, a hand wheel 6 is fixedly connected to one end of the valve rod 4 away from the valve plate 3, so that a worker can drive the valve rod 4 to rotate.

The implementation principle of a stop valve of the embodiment of the application is as follows: when the rotation of the valve rod 4 is to be restricted, the movable disk 54 is driven to rotate, the movable block 53 is moved in the axial direction of the movable rod 52, and the movable block 53 is fitted into the fixed groove 41, thereby restricting the rotation of the valve rod 4.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalents, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a stop valve, includes valve body (1) and valve gap (2), bolted connection is passed through with valve body (1) top in valve gap (2), valve body (1) inside is provided with valve plate (3), valve plate (3) are rotated towards the one end of valve gap (2) and are connected with valve rod (4), its characterized in that: valve rod (4) threaded connection is on valve gap (2), be provided with restriction valve rod (4) pivoted limit structure (5) on valve rod (4), valve rod (4) upper end fixedly connected with sliding seat (51), movable hole (511) have been seted up towards the terminal surface of valve rod (4) in sliding seat (51), movable hole (511) female connection has movable rod (52), fixed slot (41) that supply movable rod (52) embedding are seted up to the periphery of valve rod (4), the up end of fixed slot (41) and the up end intercommunication of valve rod (4).

2. A shut-off valve as claimed in claim 1, wherein: one end of the movable rod (52) facing the valve rod (4) is rotatably connected with a movable block (53), and when the movable block (53) is embedded into the fixed groove (41), two opposite end faces of the fixed groove (41) are respectively attached to two end faces of the movable block (53).

3. A shut-off valve as claimed in claim 2, wherein: and a chamfer (531) is formed at the edge of the movable block (53) facing the valve rod (4).

4. A shut-off valve as claimed in claim 1, wherein: one end of the movable rod (52) far away from the valve rod (4) is fixedly connected with a movable disc (54).

5. A shut-off valve as claimed in claim 4, wherein: a spring (55) is arranged between the movable disc (54) and the movable seat (51).

6. A shut-off valve as claimed in claim 5, wherein: the spring (55) is sleeved outside the movable rod (52).

7. A shut-off valve as claimed in claim 1, wherein: limiting structure (5) are provided with a plurality ofly, and are a plurality of limiting structure (5) distribute along the axis circumference array of valve rod (4).

8. A shut-off valve as claimed in claim 1, wherein: and one end of the valve rod (4) far away from the valve plate (3) is fixedly connected with a hand wheel (6).