CN203230938U - Valve rod projection jacket - Google Patents

Abstract

A valve rod projection jacket belongs to the technical field of valve spare and accessory parts. A jacket body is cylindrical, and a valve rod view port is arranged in the direction of a bus of the jacket body. A hemispherical top end having the same diameter with the jacket body is arranged on the top end surface of the jacket body, and a sealing cover located at the bottom end of the jacket body covers the surface of a hub arranged at the center of a hand wheel of a valve. Three fixing legs are arranged below the sealing cover, and each fixing leg is formed by two L-shaped structures corresponding to the arc shape in direction. Each two L-shaped structures form a spoke bayonet used for clamping a spoke of the hand wheel of the valve at the center of the fixing legs. The two L-shaped structures of each fixing leg are transversely staggered so that the spoke of the hand wheel of the valve enters the spoke bayonet and is clamped and then the valve rod projection jacket is fixed on the hand wheel of the valve. The valve rod projection jacket has the advantages that the top end of the jacket is designed to be the hemispherical surface so that the condition of possibility of personal injury due to the fact that an edge is arranged at the end of the existing structure is avoided, and unsafe factors are omitted.

Description

A kind of valve rod protecting jacket

Technical field

The utility model relates to a kind of valve rod protecting jacket, belongs to valve Component technical field.

Background technique

Gate valve since its good airproof performance, simple in structure, MEDIA FLOW be widely used in the petrochemical industry place to characteristics such as unrestricted.Gate valve all is the state that is in long-term unlatching in the course of the work usually, and it is very long one section outward that valve rod stretches out valve body.Owing to produce to need, many valves all are open-air placements, the time that valve rod exposes in environment grown back just get rusty easily or screw thread in adhere to sand and dust, foreign material, influence the normal use of valve.And the valve stem end and the outside thread thereof that expose also might scratch human body, have certain unsafe factor.

For addressing these problems, people have designed some protective gears.The general thought of existing structure all is to adopt tube-in-tube structure cylindraceous that thereby valve rod and external isolation are played a protective role.These structures have realized the protection valve rod and have isolated valve stem end and the function of the unsafe factor that outside thread may bring.But the top end face of these sleeve meanss all is to be designed to the plane, and this plane and sleeve cylindraceous periphery have formed the seamed edge of a circle.This seamed edge also can cause certain damage to the person.And existing structure is not very fastening in the fixing mode of valve, is blown off by wind easily when using in the bigger area of wind-force, causes loss.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of valve rod protecting jacket.

A kind of valve rod protecting jacket, it is cylindric that body is, and offers the valve rod observation panel at the body generatrix direction;

Body top end face is the hemisphere face top identical with the body diameter,

The capping that is positioned at the body bottom covers the hub surface at valve handle center;

There is fastening foot the capping below, and fastening foot is made of the L shape structure of the corresponding arc of two directions; Fastening foot has three; Three fastening foot angle each other is 120 °;

Two L shape structures have constituted the spoke bayonet socket of the spoke that is used for blocking valve handle at the center of fastening foot;

Make the spoke of valve handle enter in the spoke bayonet socket two L shape structure lateral alternates of each fastening foot and behind the chucking, the valve rod protecting jacket is fixed on the valve handle.

The beneficial effects of the utility model are: by being hemisphere face with the sleeve tip designs, avoided the existing structure medial end portions that seamed edge is arranged, may cause the situation of damage to the person, eliminated unsafe factor.Simultaneously, this structure adopts protecting jacket is fixed on means of fixation on the handwheel spoke, makes protecting jacket fixing more fastening, has avoided the possibility that is blown off by high wind.This structure operation is simple, can conveniently be fixed or take off, and does not influence the line service to valve rod.

Description of drawings

When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:

Fig. 1 is valve rod protecting jacket structural representation of the present utility model.

Fig. 2 is use status architecture schematic representation of the present utility model.

Below in conjunction with drawings and Examples the utility model is further specified.

Embodiment

Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.

Embodiment 1: as shown in Figure 1 and Figure 2, a kind of valve rod protecting jacket comprises body 1, valve rod observation panel 2, hemisphere face top 3, capping 2, fastening foot 5, spoke bayonet socket 6;

Body 1 is cylindric, offers valve rod observation panel 2 at body 1 generatrix direction;

Body 1 top end face is the hemisphere face top 3 identical with body 1 diameter,

The capping 4 that is positioned at body 1 bottom covers the hub surface at valve handle 7 centers;

There is fastening foot 5 capping 4 belows, and fastening foot 5 is made of the L shape structure of the corresponding arc of two directions; Fastening foot 5 has three;

Two L shape structures have constituted the spoke bayonet socket 6 that is used for blocking valve handle 7 spokes at the center of fastening foot 5;

Make the spoke of valve handle 7 enter in the spoke bayonet socket 6 two L shape structure lateral alternates of each fastening foot 5 and behind the chucking, just the valve rod protecting jacket firmly can be fixed on the valve handle 7.

Body 1 is cylinder-like structure, offers valve rod observation panel 2 along body 1 generatrix direction, and valve rod observation panel 2 width are 10-30mm, and length is slightly less than the valve rod travel distance.

Hemisphere face top 3 is positioned at body 1 top, its spherical diameter and body 1 equal diameters.Circular capping 4 is positioned at body 1 bottom, and its diameter is identical with hub diameter.

The fastening foot 5 of capping 4 belows has three, and its mutual angle is determined by the spoke radical of the valve handle 7 of particular location.

When spoke was three, three fastening foot angle each other was 120 °;

When spoke was five, wherein the angle between two fastening foot was 72 °, and the angle between a remaining fastening foot and aforementioned two fastening foot is 144 °.

Each fastening foot 5 is made of the arc L shape structure of two direction correspondences, and these two L shape structures have been formed centrally spoke bayonet socket 6 in fastening foot 5.

Spoke bayonet socket 6 is rectangular, and its length and width size is measure-alike with the major and minor axis of spoke respectively.

The valve rod protecting jacket is made by the Stainless Sheet Steel that for wall thickness is 1.5mm.

Embodiment 2: as shown in Figure 1 and Figure 2,

A kind of valve rod protecting jacket, body 1 is cylindric, offers valve rod observation panel 2 at body 1 generatrix direction and is used for observing the position of valve rod 8 to judge the opening state of valve.

Body top end face is the hemisphere face top 3 identical with body 1 diameter, and flat end face and the cylindric peripheral unsafe factor that forms the seamed edge damage person have been eliminated in design like this.

During use, the valve rod protecting jacket is inserted in valve rod 8 from body 1 bottom direction; Make the spoke of valve handle 7 be positioned at spoke bayonet socket 6 two L shape structure lateral alternates of fastening foot 5 with hand, utilize metallic spring deformation with 6 sealings of spoke bayonet socket after decontroling hand, make fastening foot 5 block the spoke of valve handle 7.So just protecting jacket firmly can be fixed on the valve handle 7, avoid being blown off the situation that causes loss by high wind.

As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.

Claims (2)

1. a valve rod protecting jacket is characterized in that body is cylindric, offers the valve rod observation panel at the body generatrix direction;

Body top end face is the hemisphere face top identical with the body diameter,

The capping that is positioned at the body bottom covers the hub surface at valve handle center;

There is fastening foot the capping below, and fastening foot is made of the L shape structure of the corresponding arc of two directions; Fastening foot has three; Three fastening foot angle each other is 120 °;

Two L shape structures have constituted the spoke bayonet socket of the spoke that is used for blocking valve handle at the center of fastening foot;

Make the spoke of valve handle enter in the spoke bayonet socket two L shape structure lateral alternates of each fastening foot and behind the chucking, the valve rod protecting jacket is fixed on the valve handle.

2. a kind of valve rod protecting jacket according to claim 1, the wall thickness that it is characterized in that protecting jacket is 1.5mm.

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