Regulating valve with sealing compensation function

Abstract

The utility model discloses a regulating valve with a sealing compensation function, which comprises a valve body, a valve seat is fixedly connected to the inner bottom wall of the valve body, a valve core is clamped to the inner wall of the valve seat, a valve rod is fixedly connected to the top end of the valve core, a valve cover is arranged above the valve body, a guide sleeve is fixedly connected to the outer surface of the valve rod, and the guide sleeve is fixedly connected to the inner bottom wall of the valve body. The outer surface of the guide sleeve is fixedly connected with a protective sleeve, a packing gland is arranged above the valve deck, and the top end of the valve rod sequentially penetrates through the valve deck and the packing gland and extends to the position above the packing gland. According to the device, the valve cover, the packing gasket, the sealing packing, the backing ring, the packing pressing sleeve and the disc spring are arranged, the packing gasket, the sealing packing, the backing ring and the packing pressing sleeve can be utilized to form a sealing structure, the sealing function of the adjusting valve is achieved, the sealing packing can be elastically and telescopically extruded through the disc spring, compensatory sealing protection of the adjusting valve is achieved, and the service life of the adjusting valve is prolonged. And effective sealing use of the regulating valve is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve especially a governing valve with sealing compensation effect. BACKGROUND

[0002] The governing valve is also called control valve, in the industrial automation process control field, through accepting the control signal output of the control unit, with the help of power operation to change medium flow, pressure, temperature, liquid level etc.

[0003] The governing valve needs to ensure the sealing effect of the governing valve due to the characteristics of the medium in the use process, the current governing valve still has certain insufficient when using, the sealing component is easy to appear wear and tear phenomenon in the use process, thereby causing the leakage of the governing valve, reduce the sealing effect of the governing valve, and the sealing component structure is simple, does not have the function of automatic repair compensation, reduces the use effect of the governing valve, for this, we propose a kind of governing valve with sealing compensation effect to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of governing valves with sealing compensation effect, to solve the problem proposed in above background technique.

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

[0006] A kind of governing valve with sealing compensation effect, including valve body, the inner bottom wall of the valve body is fixedly connected with valve seat, the inner wall of the valve seat is clamped with valve core, the top of the valve core is fixedly connected with valve stem, the upper of the valve body is equipped with valve cover, the outer surface of the valve stem is fixedly connected with guide sleeve, the outer surface of the guide sleeve is fixedly connected with protective sleeve, the upper of the valve cover is equipped with packing gland, the top of the valve stem is in sequence and extends to the upper of packing gland and is in sequence and extends to the upper of packing gland, the inner wall of the valve cover is fixedly connected with packing washer, the inner wall of the valve cover is filled with sealing packing, the outer surface of the valve stem is equipped with washer, the outer surface of the washer and the inner wall of the valve cover are in contact, the outer surface of the valve stem is equipped with disc spring and packing press sleeve, the packing press sleeve is located in the upper of disc spring, the top of the packing press sleeve and the bottom surface of packing gland are in contact.

[0007] In further embodiments, the inner wall of the valve cover is equipped with a group of first mounting studs, the bottom end of each first mounting stud is threadedly connected with the upper surface of the valve body.

[0008] In further embodiments, the inner wall of the packing gland is sleeved with a set of second mounting studs, and the bottom end of each second mounting stud is threadedly connected with the upper surface of the valve cover.

[0009] In further embodiments, the left and right sides of the valve body are each provided with a set of connecting mounting holes.

[0010] In further embodiments, the outer surface of the valve stem is clamped with a clamping spring, and the clamping spring is located below the guide sleeve.

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

[0012] The valve cover, packing gasket, sealing packing, gasket ring, packing press sleeve and disc spring are arranged, the sealing structure is formed by the packing gasket, sealing packing, gasket ring and packing press sleeve, the sealing function of the regulating valve is realized, the disc spring can elastically stretch and compress the sealing packing, the compensating sealing protection of the regulating valve is realized, and the effective sealing use of the regulating valve is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an internal sectional structure schematic view of the regulating valve with the sealing compensation effect.

[0014] Figure 2 It is a structure schematic view of the regulating valve with the sealing compensation effect Figure 1 in the enlarged detail view of A.

[0015] Figure 3 It is a structure schematic view of the regulating valve with the sealing compensation effect Figure 1 in the enlarged detail view of B.

[0016] In the figure: 1, valve body; 2, gasket ring; 3, valve seat; 4, clamping spring; 5, valve core; 6, guide sleeve; 7, second mounting stud; 8, valve stem; 9, disc spring; 10, valve cover; 11, protective sleeve; 12, first mounting stud; 13, packing gasket; 14, sealing packing; 15, packing press sleeve; 16, packing gland; 17, connecting mounting hole. DETAILED DESCRIPTION

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3In this utility model, a regulating valve with sealing compensation function includes a valve body 1, a valve seat 3 fixedly connected to the inner bottom wall of the valve body 1, a valve core 5 snapped into the inner wall of the valve seat 3, a valve stem 8 fixedly connected to the top of the valve core 5, a valve cover 10 provided above the valve body 1, a guide sleeve 6 fixedly connected to the outer surface of the valve stem 8, a protective sleeve 11 fixedly connected to the outer surface of the guide sleeve 6, a packing gland 16 provided above the valve cover 10, the top of the valve stem 8 passing through the valve cover 10 and the packing gland 16 in sequence and extending to the top of the packing gland 16, a packing gasket 13 fixedly connected to the inner wall of the valve cover 10, a sealing packing 14 filled in the inner wall of the valve cover 10, a gasket 2 sleeved on the outer surface of the valve stem 8, the outer surface of the gasket 2 contacting the inner wall of the valve cover 10, a disc spring 9 and a packing gland 15 sleeved on the outer surface of the valve stem 8, the packing gland 15 being located above the disc spring 9, and the top of the packing gland 15 contacting the bottom surface of the packing gland 16.

[0021] A set of first mounting studs 12 are fitted on the inner wall of the valve cover 10. The bottom end of each first mounting stud 12 is threaded to the upper surface of the valve body 1. The valve cover 10 and the valve body 1 can be installed and fixed through the first mounting studs 12, which facilitates the assembly operation of this regulating valve. A set of second mounting studs 7 are fitted on the inner wall of the packing gland 16. The bottom end of each second mounting stud 7 is threaded to the upper surface of the valve cover 10. The packing gland 16 can be screwed on through the second mounting studs 7, which increases the sealing effect of this regulating valve.

[0022] A set of connection mounting holes 17 are provided on both the left and right sides of the valve body 1. The connection mounting holes 17 facilitate the installation and stable use of this regulating valve. A retaining spring 4 is snapped onto the outer surface of the valve stem 8. The retaining spring 4 is located below the guide sleeve 6. The retaining spring 4 can support the guide sleeve 6, which facilitates the stable use of the valve stem 8.

[0023] The working principle of this utility model is as follows:

[0024] In use, the control valve is first assembled and installed using the first mounting stud 12 and the second mounting stud 7. At the same time, a sealing structure is formed using the packing washer 13, sealing packing 14, gasket 2, and packing sleeve 15. The sealing packing 14 is elastically compressed by the disc spring 9 to achieve compensatory sealing protection for the control valve. Then, the packing gland 16 is installed using the second mounting stud 7 to complete the assembly and sealing protection of the control valve. Finally, the control valve is installed and fixed through the connecting mounting hole 17 before use.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those 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 those skilled in the art.

Claims

1. A regulating valve with sealing compensation function, characterized in that: The valve body includes a valve body (1), a valve seat (3) is fixedly connected to the inner bottom wall of the valve body (1), a valve core (5) is snapped into the inner wall of the valve seat (3), a valve stem (8) is fixedly connected to the top of the valve core (5), a valve cover (10) is provided above the valve body (1), a guide sleeve (6) is fixedly connected to the outer surface of the valve stem (8), a protective sleeve (11) is fixedly connected to the outer surface of the guide sleeve (6), a packing gland (16) is provided above the valve cover (10), and the top of the valve stem (8) passes through the valve cover (10) and the packing gland (16) in sequence. And extends to the top of the packing gland (16). The inner wall of the valve cover (10) is fixedly connected with a packing gasket (13). The inner wall of the valve cover (10) is filled with sealing packing (14). The outer surface of the valve stem (8) is fitted with a gasket (2). The outer surface of the gasket (2) is in contact with the inner wall of the valve cover (10). The outer surface of the valve stem (8) is fitted with a disc spring (9) and a packing sleeve (15). The packing sleeve (15) is located above the disc spring (9). The top of the packing sleeve (15) is in contact with the bottom surface of the packing gland (16).

2. A regulating valve with sealing compensation function according to claim 1, characterized in that: The inner wall of the valve cover (10) is fitted with a set of first mounting studs (12), and the bottom end of each first mounting stud (12) is threaded to the upper surface of the valve body (1).

3. A regulating valve with sealing compensation function according to claim 1, characterized in that: The inner wall of the packing gland (16) is fitted with a set of second mounting studs (7), and the bottom end of each second mounting stud (7) is threadedly connected to the upper surface of the valve cover (10).

4. A regulating valve with sealing compensation function according to claim 1, characterized in that: The valve body (1) has a set of connection and installation holes (17) on both its left and right sides.

5. A regulating valve with sealing compensation function according to claim 1, characterized in that: A retaining ring (4) is snapped onto the outer surface of the valve stem (8), and the retaining ring (4) is located below the guide sleeve (6).

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