Stable valve rod guide structure of regulating valve

Abstract

The utility model discloses a stable regulating valve rod guide structure which comprises a valve body, a valve cover is arranged above the valve body, the inner side wall of the valve body is fixedly connected with a valve seat, a valve element is arranged in the valve body, the upper surface of the valve element is fixedly connected with a valve element assembly, and the valve element assembly is fixedly connected with the valve cover. An annular positioning groove is formed in the inner side wall of the valve deck, a packing gland is connected to the upper surface of the valve deck, and a packing pressing sleeve is arranged below the packing gland. By arranging the valve body, the valve cover, the valve seat, the valve element, the valve element assembly, the annular positioning groove, the packing gland, the packing pressing sleeve, the disc spring, the backing ring, the packing, the clamping spring, the second guide sleeve and the first guide sleeve, the guiding stability of the valve element assembly in the valve body and the valve cover can be improved, and the displacement deviation condition of the valve element assembly is avoided; the use quality of the valve element assembly is improved, meanwhile, the practicability and functionality of equipment are improved, and the service life of the equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of governing valve, especially a stable governing valve valve rod guide structure. BACKGROUND

[0002] The governing valve plays a very important role in the automatic control of modern factory, and the production of these factories depends on the correct distribution and control of flowing medium, and these controls are either energy exchange, pressure reduction or simple container charging.

[0003] The current governing valve is used in many industries, and the structure of the current governing valve is relatively simple, and the guiding effect of the valve core assembly is not good when opening and closing, which can easily cause the valve core assembly to deviate, greatly reducing the practicability of the governing valve. UTILITY MODEL CONTENT

[0004] The utility model discloses a stable governing valve valve rod guide structure to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A stable governing valve valve rod guide structure, comprising a valve body, a valve cover is arranged above the valve body, a valve seat is fixedly connected to the inner side wall of the valve body, a valve core is arranged in the valve body, a valve core assembly is fixedly connected to the upper surface of the valve core, an annular positioning groove is formed in the inner side wall of the valve cover, a packing gland is connected to the upper surface of the valve cover, a packing sleeve is arranged below the packing gland, a disc spring is arranged below the packing sleeve, a spacer ring is arranged below the disc spring, packing is arranged above the spacer ring, a first guide sleeve is arranged in the valve body, a second guide sleeve is arranged in the valve body, and a snap spring is arranged in the valve body.

[0007] In further embodiments, the outer surface of the valve core assembly is connected with a nut, and the inner side wall of the snap spring is in sliding connection with the outer surface of the valve core assembly.

[0008] In further embodiments, the upper surface of the valve body is fixedly connected with two studs, and the outer surface of each stud is threadedly connected with a hexagonal nut.

[0009] In further embodiments, the outer surface of the valve core assembly is in sliding connection with the inner wall of the annular positioning groove, and the second guide sleeve is made of wear-resistant and high-temperature-resistant alloy.

[0010] In further embodiments, the packing sleeve is made of fluorine rubber, and the inner side wall of the disc spring is in contact with the outer surface of the valve core assembly.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The device is provided with a valve body, a valve cover, a valve seat, a valve core, a valve core assembly, an annular positioning groove, a packing gland, a packing sleeve, a disc spring, a grommet, packing, a snap spring, a second guide sleeve and a first guide sleeve, which can improve the stability of the valve core assembly in the valve body and the valve cover, avoid displacement deviation, improve the use quality of the valve core assembly, improve the practicability and functionality of the equipment, and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the sectional view of the valve body front view in the stable regulating valve stem guide structure.

[0014] Figure 2 It is the structure schematic view of the valve core assembly perspective view in the stable regulating valve stem guide structure.

[0015] Figure 3 It is the stable regulating valve stem guide structure Figure 1 The structure schematic view of the local amplification in A.

[0016] Figure 4 It is the stable regulating valve stem guide structure Figure 1 The structure schematic view of the local amplification in B.

[0017] Figure 5 It is the structure schematic view of the first guide sleeve perspective view in the stable regulating valve stem guide structure.

[0018] In the drawing: 1, valve body; 2, valve cover; 3, valve seat; 4, valve core; 5, valve core assembly; 6, annular positioning groove; 7, packing gland; 8, packing sleeve; 9, disc spring; 10, grommet; 11, packing; 12, first guide sleeve; 13, second guide sleeve; 14, snap spring; 15, nut; 16, stud; 17, hexagonal nut. DETAILED DESCRIPTION

[0019] In the description of the utility model, it is necessary to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relation based on the orientation or positional relation 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 indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0020] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in the description of the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor are within the scope of protection of the utility model.

[0022] Please refer to Figures 1-5The utility model discloses a stable governing valve stem guiding structure, including valve body 1, the upper of valve body 1 is equipped with valve cover 2, the inner side wall of valve body 1 is fixedly connected with valve seat 3, the inside of valve body 1 is equipped with valve core 4, the upper surface of valve core 4 is fixedly connected with valve core subassembly 5, the inner side wall of valve cover 2 is equipped with annular locating groove 6, the upper surface of valve cover 2 is connected with packing gland 7, the below of packing gland 7 is equipped with packing pressure cover 8, the below of packing pressure cover 8 is equipped with disc spring 9, the below of disc spring 9 is equipped with spacer ring 10, the upper of spacer ring 10 is equipped with packing 11, the inside of valve body 1 is equipped with first guide sleeve 12, the inside of valve body 1 is equipped with second guide sleeve 13, the inside of valve body 1 is equipped with snap spring 14, it can improve the stability that valve core subassembly 5 is guided in the inside of valve body 1 and valve cover 2, avoids the displacement deviation of its appearance, it improves the use quality of valve core subassembly 5, improves the practicability and functionality of the equipment simultaneously, and improves its service life.

[0023] The outer surface of valve core subassembly 5 is connected with nut 15, the inner side wall of snap spring 14 is slidably connected with the outer surface of valve core subassembly 5, using nut 15, can conveniently connect valve core subassembly 5 with equipment, the upper surface of valve body 1 is fixedly connected with two stud bolts 16, the outer surface of each stud bolt 16 is threadedly connected with hexagon nut 17, using stud bolt 16 and hexagon nut 17, can conveniently install valve body 1 and valve cover 2.

[0024] The outer surface of valve core subassembly 5 is slidably connected with the inner wall of annular locating groove 6, second guide sleeve 13 is wear-resistant high-temperature alloy, it can improve the use effect of second guide sleeve 13, packing pressure cover 8 is fluorine rubber, the inner side wall of disc spring 9 is in contact with the outer surface of valve core subassembly 5, it can improve the use quality of valve core subassembly 5.

[0025] The working principle of the utility model is:

[0026] First, valve core subassembly 5 is inserted into valve cover 2 inside, and valve core 4 is located in valve seat 3 inside, and first guide sleeve 12, second guide sleeve 13 and snap spring 14 are installed to valve core subassembly 5 outside in proper order, and valve body 1 and valve cover 2 are connected using stud bolt 16 and hexagon nut 17, then packing 11, spacer ring 10, disc spring 9, packing pressure cover 8 are installed to valve cover 2 inside in proper order, and are fixed using packing gland 7, locating screw and locating nut, and the equipment can provide stable guiding for packing 11, spacer ring 10, disc spring 9, packing pressure cover 8, first guide sleeve 12, second guide sleeve 13 and snap spring 14 to the maximum when using, above is the whole use process of the utility model.

[0027] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0028] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A stable control valve stem guide structure, characterized by: The utility model relates to a valve, including valve body (1), the upper side of valve body (1) is equipped with valve cover (2), the inner side wall of valve body (1) is fixedly connected with valve seat (3), the inside of valve body (1) is equipped with valve core (4), the upper surface of valve core (4) is fixedly connected with valve core subassembly (5), the inner side wall of valve cover (2) is opened with annular positioning slot (6), the upper surface of valve cover (2) is connected with packing gland (7), the lower side of packing gland (7) is equipped with packing sleeve (8), the lower side of packing sleeve (8) is equipped with disc spring (9), the lower side of disc spring (9) is equipped with spacer ring (10), the upper side of spacer ring (10) is equipped with packing (11), the inside of valve body (1) is equipped with first guide sleeve (12), the inside of valve body (1) is equipped with second guide sleeve (13), the inside of valve body (1) is equipped with snap spring (14).

2. A stable trim valve stem guide structure as defined in claim 1 wherein: The outer surface of valve core subassembly (5) is connected with nut (15), the inner side wall of snap spring (14) is slidably connected with the outer surface of valve core subassembly (5).

3. A stable trim valve stem guide structure as defined in claim 1 wherein: The upper surface of valve body (1) is fixedly connected with two stud bolts (16), the outer surface of each stud bolt (16) is threadedly connected with hexagon nut (17).

4. A stable trim valve stem guide structure as defined in claim 1 wherein: The outer surface of valve core subassembly (5) is slidably connected with the inner wall of annular positioning slot (6), the second guide sleeve (13) is wear-resistant high-temperature alloy.

5. A stable trim valve stem guide structure as defined in claim 1 wherein: The packing sleeve (8) is fluorine rubber, the inner side wall of disc spring (9) is in contact with the outer surface of valve core subassembly (5).

Images