Static balance ball valve

Abstract

The utility model discloses a static balance ball valve which comprises a valve body and a shaft sleeve assembly. The shaft sleeve assembly comprises a shaft sleeve and a valve rod; a positioning piece is arranged on the valve rod, a first limiting hole and a second limiting hole are further formed in the shaft sleeve, and limiting pins are arranged in the first limiting hole and the second limiting hole. A first limiting section is arranged on one side of the limiting pin, and a second limiting section is arranged on the other side of the limiting pin; a limiting pin in a first limiting hole abuts against the first limiting section so that the valve rod can be prevented from rotating towards one side. The limiting pin in the second limiting pin abuts against the second limiting section so that the valve rod can be prevented from rotating towards the other side. In conclusion, due to the fact that the limiting pin moves in the corresponding limiting hole, when the limiting pin abuts against the corresponding limiting interval, continuous rotation of the valve rod can be limited, and on the basis, the equipment has the advantages of being simple in structure, convenient to use and high in practicability. Limiting is reliable, and meanwhile the problems that in the prior art, a limiting mechanism is large in occupied space and inconvenient to operate can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is a static balance ball valve. BACKGROUND

[0002] Through the retrieval discovery announcement number for CN114542745A prior art, its working principle is as follows: through the hand holds the handlebar, and the pull rod is pulled up, then the handlebar is rotated, with the magnetic key block rotates, when the valve body reaches the set value, the pull rod can be released, so that the user end flow is accurately adjusted, after the flow is adjusted, the magnetic key is taken out, so as to improve the safety of the valve in use. SUMMARY

[0003] The utility model discloses a static balance ball valve to solve the problem in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a static balance ball valve, including the valve body, the shaft sleeve assembly that installs on the valve body, the shaft sleeve assembly includes the shaft sleeve, the valve rod that installs in the shaft sleeve, the valve rod is equipped with the positioning piece, still the first limit hole and the second limit hole are equipped on the shaft sleeve, and the limit pin is equipped in the first limit hole with the second limit hole, wherein, one side of the limit pin is equipped with the first limit interval, and the other side of the limit pin is equipped with the second limit interval, the limit pin in the first limit hole and the first limit interval are in contact, to prevent the valve rod from rotating to one side, the limit pin in the second limit hole and the second limit interval are in contact, to prevent the valve rod from rotating to the other side.

[0005] As a preferred technical scheme of the utility model: the first limit hole and the second limit hole are all through the thread of inner wall surface and the corresponding limit pin thread cooperation.

[0006] As a preferred technical scheme of the utility model: the central axis of the first limit hole and the central axis of the second limit hole are perpendicular to each other.

[0007] As a preferred technical scheme of the utility model: the shaft sleeve assembly further includes a positioning member, another end of the positioning member is connected with the handle provided, wherein, the positioning member is further provided with a scale disc, and the handle is further provided with a pointer.

[0008] As a preferred technical scheme of the utility model: the positioning member is connected with the insertion slot provided on the inner wall surface of the shaft sleeve through the insertion pin provided.

[0009] As the preferred technical scheme of the utility model: both sides of the valve body are also provided with connecting holes, and one-way valves are arranged on the connecting holes.

[0010] By adopting the above technical scheme, the utility model has the beneficial effects that: since the equipment utilizes the limit pin to move in the corresponding limit hole, and when the limit pin is in contact with the corresponding limit interval, the continuous rotation of the valve rod can be limited, and based on this, the equipment can effectively solve the problems of large space occupation and inconvenient operation of the limit mechanism in the prior art while having simple structure and reliable limit. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is an exploded schematic view of the main structure of the utility model;

[0012] Figure 2 It is a schematic view of one side structure of the shaft sleeve assembly after being exploded;

[0013] Figure 3 It is a schematic view of another side structure of the shaft sleeve assembly after being exploded;

[0014] Figure 4 It is a schematic view of the structure of the upper end of the shaft sleeve assembly after being cut open;

[0015] Figure 5 It is a schematic view of the main structure of the positioning sheet.

[0016] In the figure: 1, valve body; 2, one-way valve; 3, shaft sleeve assembly; 30, shaft sleeve; 31, valve rod; 32, first limit hole; 33, limit pin; 34, second limit hole; 35, positioning sheet; 36, positioning piece; 37, bolt; 38, handle; 39, dial; 310, slot; 311, pointer; 312, first limit interval; 313, second limit interval; 4, connecting hole. DETAILED DESCRIPTION

[0017] The embodiments of the utility model will be described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation on the utility model. In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "upper surface" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0018] Referring to Figures 1-5 The utility model provides an embodiment: a static balance ball valve, including valve body 1, install the shaft sleeve assembly 3 on valve body 1, the shaft sleeve assembly 3 includes shaft sleeve 30, install the valve stem 31 in shaft sleeve 30, be equipped with the positioning sheet 35 on valve stem 31, and still be equipped with first limit hole 32 and second limit hole 34 on shaft sleeve 30, and be equipped with limit pin 33 in first limit hole 32 with second limit hole 34, wherein, one side of limit pin 33 is equipped with first limit interval 312, and the other side of limit pin 33 is equipped with second limit interval 313, through the limit pin 33 in first limit hole 32 with first limit interval 312, to prevent valve stem 31 to one side rotation, through the limit pin 33 in second limit hole 34 with second limit interval 313, to prevent valve stem 31 to the other side rotation.

[0019] In conclusion, since the device utilizes limit pin 33 to move within the corresponding limit hole, and when the limit pin 33 comes into contact with the corresponding limit interval, it can limit the continued rotation of the valve stem 31. Based on this, the device, while having a simple structure and reliable limiting, can effectively solve the problems of large space occupation and inconvenient operation of the limiting mechanism in the prior art.

[0020] Further, since the first limit hole 32 and the second limit hole 34 are both threaded with the corresponding limit pin 33 through the inner wall surface, by rotating the limit pin 33, the depth of the limit pin 33 into the shaft sleeve 30 can be adjusted, and the limiting ability of the limit pin 33 can be improved, and the limit pin 33 will not fall off during use. In addition, since the depth of the limit pin 33 inserted into the shaft sleeve 30 can be adjusted, the rotation angle of the positioning sheet 35 can be further controlled.

[0021] Specifically, the central axis of the first limit hole 32 and the central axis of the second limit hole 34 are perpendicular to each other, so that after the valve stem 31 is rotated to the maximum angle, the ball center inside the valve body 1 can be completely opened.

[0022] On the basis of the above-mentioned scheme, since the shaft sleeve assembly 3 further includes a positioning member 36, the other end of the positioning member 36 is connected with a handle 38, wherein the positioning member 36 is further provided with a scale disc 39, and the handle 38 is further provided with a pointer 311, so that when the handle 38 is rotated, the pointer 311 is rotated on the scale disc 39, and then the user can accurately and reliably understand the rotation of the valve stem 31 by reading the value on the scale disc 39, wherein the scale value on the scale disc 39 is an angle value.

[0023] Further, since the positioning member 36 is connected with the insertion slot 310 on the inner wall of the shaft sleeve 30 through the insertion pin 37, the assembly of the positioning member 36 and the shaft sleeve 30 is simple, convenient and smooth, and the axial rotation of the positioning member 36 in the shaft sleeve 30 can be prevented, thereby ensuring that the position of the scale disc 39 is always unchanged when the handle 38 rotates, and the reading accuracy is ensured.

[0024] Further, since the valve body 1 is provided with the connecting hole 4 on both sides, and the one-way valve 2 is arranged on the connecting hole 4, the gas source in the valve body 1 can be released outward through the opening of the one-way valve 2, and the pressure on both sides of the valve body 1 can be balanced through the one-way valve 2.

[0025] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the present application.

Claims

1. A statically balanced ball valve characterized by: Including valve body (1), install on the valve body (1) on sleeve assembly (3);The sleeve assembly (3) includes sleeve (30), install in the sleeve (30) valve stem (31); The valve stem (31) is provided with a positioning sheet (35), and the sleeve (30) is further provided with a first limit hole (32) and a second limit hole (34), and a limit pin (33) is arranged in the first limit hole (32) and the second limit hole (34);Wherein, one side of the limit pin (33) is provided with a first limit interval (312), and the other side of the limit pin (33) is provided with a second limit interval (313); The limit pin (33) in the first limit hole (32) is in contact with the first limit interval (312), so as to prevent the valve stem (31) from rotating to one side;The limit pin (33) in the second limit hole (34) is in contact with the second limit interval (313), so as to prevent the valve stem (31) from rotating to the other side.

2. A static balance ball valve according to claim 1, characterized in that: The first limit hole (32) and the second limit hole (34) are threadedly connected with the corresponding limit pin (33) through the thread on the inner wall surface.

3. A static balance ball valve according to claim 2, characterized in that: The central axis of the first limit hole (32) and the central axis of the second limit hole (34) are perpendicular to each other.

4. A static balance ball valve according to claim 1 or 2 or 3, characterized in that: The sleeve assembly (3) further comprises a positioning member (36), one end of the positioning member (36) is connected with a handle (38), wherein the positioning member (36) is further provided with a scale disc (39), and the handle (38) is further provided with a pointer (311).

5. A static balance ball valve according to claim 4, characterized in that: The positioning member (36) is connected with the insertion slot (310) on the inner wall surface of the sleeve (30) through the insertion pin (37).

6. A static balance ball valve according to claim 5, characterized in that: Both sides of the valve body (1) are further provided with a connecting hole (4), and a one-way valve (2) is arranged on the connecting hole (4).

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