CN211315132U - Dustproof spherical stop valve - Google Patents

Abstract

The utility model discloses a dustproof spherical stop valve, including valve body, valve gap, revolving platform, valve rod entry platform, screw thread valve rod and dustproof rubber sleeve, the valve gap top is provided with the valve rod entry platform, valve rod entry platform with valve gap center sliding connection has the valve rod, the valve rod top is provided with revolve the platform, the valve rod in revolve the platform with outside between the valve rod entry platform has cup jointed dustproof rubber sleeve, the valve gap bottom is provided with the valve body, the inside right side of valve body is provided with the liquid outlet, the valve body bottom is provided with the inlet. The dustproof spherical stop valve provided by the utility model can seal the interface between the valve rod and the valve rod all the time when the valve rod is rotated up and down by arranging the dustproof rubber sleeve which can be freely compressed at the top end of the valve cover and the outer side of the valve rod, thereby effectively isolating dust; meanwhile, the joint of the valve cover and the valve rod is provided with two layers of O-shaped sealing rings, so that the sealing performance of the valve body is further improved, and the service life of the valve body is prolonged.

Description

Dustproof spherical stop valve

Technical Field

The utility model relates to a spherical stop valve field particularly, relates to dustproof spherical stop valve.

Background

The stop valve, also called stop valve, is the most widely used valve, and it is popular because the friction between the sealing surfaces is small in the opening and closing process, it is durable, the opening height is not large, it is easy to manufacture, it is convenient to maintain, it is not only suitable for middle and low pressure, but also suitable for high pressure. The closing principle of the stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of the valve rod, and the medium is prevented from flowing.

The ceramic spherical stop valve with the application number of CN 201679967U comprises a valve body, a valve cover, a valve core and a valve rod; the sealing element of the valve core is spherical and can be made of whole or partial ceramic materials; the sealing surface of the valve seat is also made of ceramic material, and the surface of the valve core is smooth; because the sealing pair of the valve is made of ceramic materials, the performances of light abrasion, corrosion resistance, tight sealing and the like of the check valve can be realized, and the service life of the valve is prolonged; the method is particularly suitable for various fluid pipelines with high viscosity and suspended substances and corrosiveness. But the utility model discloses a when the rotating valve rod, the dust can follow inside valve rod and valve gap kneck get into the valve gap, long-time piling up can make valve rod and valve gap linking department block up, and then influences the gas tightness of whole valve body.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dustproof spherical stop valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: dustproof spherical stop valve, including valve body, valve gap, revolving platform, first valve rod, entry platform, screw thread valve rod and dustproof rubber sleeve, the valve gap top is provided with the entry platform, the entry platform with valve gap center sliding connection has first valve rod, first valve rod top is provided with revolve the platform, first valve rod in revolve the platform with the outside between the entry platform has been cup jointed dustproof rubber sleeve, the valve gap bottom is provided with the valve body, the inside right side of valve body is provided with the liquid outlet, the valve body bottom is provided with the inlet.

Furthermore, the threaded valve rod is arranged at the bottom end of the first valve rod, a threaded sleeve is arranged inside the valve body and outside the threaded valve rod, and a valve core is arranged at the bottom end of the threaded valve rod inside the valve body.

Furthermore, a valve seat is arranged at the top end of the liquid inlet.

Furthermore, the liquid inlet is provided with a clamping groove at the top end of the valve seat.

Furthermore, the joint of the top end of the valve body and the valve cover is provided with a threaded interface, and the valve body is in threaded connection with the valve cover through the threaded interface.

Furthermore, a clamping ring is arranged on the outer side of the valve core and is matched with a clamping groove formed in the top end of the valve seat.

Furthermore, the valve cover is provided with a sealing chamber at the top end outside the first valve rod in a circle, and two layers of O-shaped sealing rings are arranged inside the sealing chamber.

Furthermore, a rotating handle is arranged on the top surface of the rotating table.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model provides a dustproof spherical stop valve can seal first valve rod and first valve rod kneck all the time through set up the dustproof rubber sleeve that can freely compress in the valve gap top and the first valve rod outside, can effectively isolated the dust in the first valve rod of upper and lower rotating.

(2) The utility model provides a dustproof spherical stop valve further increases the sealing performance of valve body through setting up two-layer O type sealing washer in valve gap and first valve rod junction, has prolonged the life of valve body.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a dustproof globe stop valve according to an embodiment of the present invention;

fig. 2 is a partially enlarged schematic view at a in fig. 1.

Reference numerals:

1. a valve body; 2. a valve cover; 3. rotating a handle; 4. rotating the platform; 5. a first valve stem; 6. an entrance station; 7. a threaded valve stem; 8. a liquid outlet; 9. a threaded interface; 10. a valve core; 11. a snap ring; 12. a clamping groove; 13. a valve seat; 14. a liquid inlet; 15. a sealed chamber; 16. an O-shaped sealing ring; 17. a dustproof rubber sleeve; 18. a threaded bushing.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Please refer to fig. 1-2, according to the embodiment of the present invention, the dustproof globe stop valve comprises a valve body 1, a valve cover 2, a rotary table 4, a first valve rod 5, an inlet table 6, a threaded valve rod 7 and a dustproof rubber sleeve 17, wherein the top end of the valve cover 2 is provided with the inlet table 6, the inlet table 6 is connected with the first valve rod 5 through the center of the valve cover 2 in a sliding manner, the top end of the first valve rod 5 is provided with the rotary table 4, the dustproof rubber sleeve 17 is sleeved on the outer side of the first valve rod 5 between the rotary table 4 and the inlet table 6, the bottom end of the valve cover 2 is provided with the valve body 1, the right side inside the valve body 1 is provided with a liquid outlet 8, and the bottom end of the valve body 1.

Through the above technical scheme of the utility model, 5 bottoms of first valve rod are provided with screw thread valve rod 7, 1 inside of valve body in the 7 outsides of screw thread valve rod are provided with threaded sleeve 18, screw thread valve rod 7 in 1 inside bottom of valve body is provided with case 10 for carry out ending the operation to 1 inside liquid of valve body.

Through the above technical scheme of the utility model, inlet 14 top is provided with disk seat 13 for joint case 10.

Through the above technical scheme of the utility model, inlet 14 in 13 tops of disk seat are provided with joint groove 12, make case 10 and 13 butt joints of disk seat make do not take place the skew.

Through the above technical scheme of the utility model, 1 top of valve body with valve gap 2 links up the department and is provided with hickey 9, valve body 1 with valve gap 2 passes through hickey 9 threaded connection.

Through the above technical scheme of the utility model, the case 10 outside is provided with joint ring 11, joint ring 11 and the 12 looks adaptations of joint groove that the 13 tops of disk seat set up.

Through the above technical scheme of the utility model, valve gap 2 in the top in 5 outside rounds of first valve rod are provided with seal chamber 15, 15 inside two-layer O type sealing washers 16 that are provided with of seal chamber, the sealing performance of the whole stop valve of further promotion.

Through the above technical scheme of the utility model, 4 top surfaces of revolving stage are provided with soon 3 for control first valve rod 5's lift.

When specifically using, the rotating is revolved 3 and is driven first valve rod 5 and descend, and the dustproof rubber sleeve 17 that freely compresses that valve gap 2 top and the first valve rod 5 outside set up receives pressure contraction, guarantees to seal the kneck all the time, has effectively completely cut off the dust, and the inlet 14 is stopped up to the inside of descending to disk seat 13 to case 10 constantly at this moment, accomplishes at random and ends work.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A dustproof spherical stop valve comprises a valve body (1), a valve cover (2), a rotary table (4), a first valve rod (5), a valve rod inlet table (6), a threaded valve rod (7) and a dustproof rubber sleeve (17), it is characterized in that the top end of the valve cover (2) is provided with the valve rod inlet platform (6), the valve rod inlet table (6) and the valve cover (2) are connected with the first valve rod (5) in a central sliding way, the rotary table (4) is arranged at the top end of the first valve rod (5), the dustproof rubber sleeve (17) is sleeved on the outer side of the first valve rod (5) between the rotary table (4) and the valve rod inlet table (6), valve gap (2) bottom is provided with valve body (1), the inside right side of valve body (1) is provided with liquid outlet (8), valve body (1) bottom is provided with inlet (14).

2. The dustproof globe stop valve according to claim 1, characterized in that the threaded valve rod (7) is arranged at the bottom end of the first valve rod (5), a threaded sleeve (18) is arranged inside the valve body (1) and outside the threaded valve rod (7), and a valve core (10) is arranged at the bottom end of the threaded valve rod (7) inside the valve body (1).

3. The dustproof globe stop valve according to claim 1, characterized in that the top end of the liquid inlet (14) is provided with a valve seat (13).

4. The dustproof spherical stop valve according to claim 3, wherein the liquid inlet (14) is provided with a clamping groove (12) at the top end of the valve seat (13).

5. The dustproof spherical stop valve according to claim 1, wherein a threaded interface (9) is arranged at the joint of the top end of the valve body (1) and the valve cover (2), and the valve body (1) and the valve cover (2) are in threaded connection through the threaded interface (9).

6. The dustproof globe stop valve according to claim 2, characterized in that a clamping ring (11) is arranged outside the valve core (10), and the clamping ring (11) is matched with a clamping groove (12) arranged at the top end of the valve seat (13).

7. The dustproof globe stop valve according to claim 1, characterized in that the valve cover (2) is provided with a sealing chamber (15) at the top end outside the first valve rod (5) in a circle, and two layers of O-shaped sealing rings (16) are arranged inside the sealing chamber (15).

8. The dustproof globe stop valve according to claim 1, characterized in that the top surface of the rotary table (4) is provided with a knob (3).

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