Self-adaptive valve rod eccentric wear prevention mechanism of lever type adjusting valve

Abstract

The utility model discloses a self-adaptive valve rod eccentric wear prevention mechanism of a lever type regulating valve, which belongs to the technical field of lever type regulating valves and comprises a valve body and a valve rod, a valve cover is arranged at the top of the valve body, the valve rod is arranged at the top of the valve cover, and a first fixing clamp and a second fixing clamp are arranged on the outer side of the valve cover. The first fixing clamp and the second fixing clamp are clamped to the outer side of the valve deck, a guide frame is arranged on the right side of the second fixing clamp, first movable plates are arranged on the two sides in the guide frame, a second movable plate is arranged at the bottom in the guide frame, the bottom of the movable valve rod makes contact with the second movable plate, the first movable plate moves towards the two sides, and the second movable plate moves towards the bottom. The valve rod is prevented from deviating, it is ensured that the valve rod smoothly moves up and down, deviation is avoided, and eccentric wear of the valve rod is completely eradicated; the first fixing clamp and the second fixing clamp are connected to the outer side of the valve deck in a sleeving mode, the first fixing block and the second fixing block are connected, then the fastening bolt is nailed in to fix the guide frame, and the stability of the guide frame in the using process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lever-type regulating valves, and in particular relates to a self-adaptive valve stem eccentric wear prevention mechanism of a lever-type regulating valve. Background Art

[0002] The lever type regulating valve is composed of two parts: a lever mechanism and a regulating mechanism (single seat, double seat, sleeve and other linear stroke regulating mechanisms). The extended lever of the lever type regulating valve is connected to the crank of the angular stroke electric actuator with a pin to complete the function of the regulating valve. The lever can also be connected to a float (purchased by yourself) for liquid level regulation.

[0003] As one of the key devices of the lever-type regulating valve, the valve stem lacks the necessary guiding device. When the regulating rod moves up and down, it is easy to deviate and contact with the surrounding devices, which not only causes eccentric wear of the valve stem, but also damages the components. For this reason, we propose an adaptive anti-eccentric wear mechanism for the lever-type regulating valve. Utility Model Content

[0004] The utility model aims to provide an adaptive anti-stem wear mechanism for a lever-type regulating valve, so as to solve the problem that the regulating rod lacks the necessary guiding device and is prone to deviation when moving up and down, thereby contacting the surrounding devices, which not only causes the occurrence of valve stem wear, but also damages the components.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive anti-valve stem wear mechanism of a lever-type regulating valve, comprising a valve body and a valve stem, a valve cover is provided on the top of the valve body, a valve stem is provided on the top of the valve cover, a No. 1 fixing clamp and a No. 2 fixing clamp are provided on the outside of the valve cover, the No. 1 fixing clamp and the No. 2 fixing clamp are movably connected, the No. 1 fixing clamp and the No. 2 fixing clamp are clamped on the outside of the valve cover, a guide frame is provided on the right side of the No. 2 fixing clamp, the guide frame is located below the valve stem, a No. 1 movable plate is provided on both sides of the guide frame, the No. 1 movable plate is movably connected to both sides of the guide frame, a No. 2 movable plate is provided at the bottom of the guide frame, and the No. 2 movable plate is movably connected to the bottom of the guide frame.

[0006] Preferably, a No. 1 spring is provided on both sides of the guide frame, the number of the No. 1 springs is several, one end of the No. 1 spring is fixedly connected to the inner wall of the guide frame, and the other end of the No. 1 spring is fixedly connected to one end of the No. 1 movable plate.

[0007] Preferably, a No. 2 spring is provided at the inner bottom of the guide frame, the bottom of the No. 2 spring is fixedly connected to the inner bottom of the guide frame, and the top of the No. 2 spring is fixedly connected to the bottom of the No. 2 movable plate.

[0008] Preferably, the first movable plate is a trapezoidal plate which is narrow at the top and wide at the bottom, and the second movable plate is a trapezoidal plate which is narrow at the front and wide at the back.

[0009] Preferably, the No. 1 fixing clip and the No. 2 fixing clip are movably connected at the rear by a hinge, the No. 1 fixing clip is provided with a No. 1 fixing block on the front, and the No. 2 fixing clip is provided with a No. 2 fixing block on the front, and one end of the No. 1 fixing block is clamped inside the No. 2 fixing block.

[0010] Preferably, a No. 1 through hole is provided inside the No. 1 fixing block, a No. 2 through hole is provided inside the No. 2 fixing block, the No. 1 through hole and the No. 2 through hole have the same specifications, and fastening bolts are provided inside the No. 1 through hole and the No. 2 through hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By connecting the No. 1 fixing clip and the No. 2 fixing clip to the outside of the valve cover, when the valve stem needs to be used, push the valve stem downward, the two sides of the valve stem contact the No. 1 movable plate, the bottom of the valve stem contacts the No. 2 movable plate, the No. 1 movable plate moves to both sides, and the No. 2 movable plate moves to the bottom. A guiding device is set to prevent the valve stem from deflecting, ensuring that the valve stem moves up and down smoothly without deflection, thereby preventing the occurrence of eccentric wear of the valve stem.

[0013] 2. The No. 1 spring and the No. 2 spring are provided to provide buffering during the movement of the No. 1 movable plate and the No. 2 movable plate to prevent the valve stem from moving too much and ensure stability during use. When the No. 1 fixing clamp and the No. 2 fixing clamp are sleeved on the outside of the valve cover, the No. 1 fixing block is connected with the No. 2 fixing block, and then the fastening bolts are driven into the No. 1 through hole and the No. 2 through hole to fix the No. 1 fixing clamp and the No. 2 fixing clamp on the outside of the valve cover, thereby improving the stability of the guide frame during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the guide frame of the utility model;

[0016] Figure 3 It is a schematic diagram of the split structure of the first fixing block and the second fixing block of the utility model.

[0017] In the figure: 1. valve body; 2. valve stem; 3. valve cover; 4. fixing clamp No. 1; 5. fixing clamp No. 2; 6. guide frame; 7. movable plate No. 1; 8. movable plate No. 2; 9. spring No. 1; 10. spring No. 2; 11. fixing block No. 1; 12. fixing block No. 2; 13. through hole No. 1; 14. through hole No. 2; 15. fastening bolts. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 The utility model provides a technical solution of an adaptive anti-valve stem wear mechanism of a lever-type regulating valve: it includes a valve body 1 and a valve stem 2, a valve cover 3 is provided on the top of the valve body 1, a valve stem 2 is provided on the top of the valve cover 3, a No. 1 fixing clamp 4 and a No. 2 fixing clamp 5 are provided on the outside of the valve cover 3, the No. 1 fixing clamp 4 and the No. 2 fixing clamp 5 are movably connected, the No. 1 fixing clamp 4 and the No. 2 fixing clamp 5 are clamped on the outside of the valve cover 3, a guide frame 6 is provided on the right side of the No. 2 fixing clamp 5, the guide frame 6 is located below the valve stem 2, a No. 1 movable plate 7 is provided on both sides of the guide frame 6, the No. 1 movable plate 7 is movably connected to both sides of the guide frame 6, a No. 2 movable plate 8 is provided on the bottom of the guide frame 6, and the No. 2 movable plate 8 is movably connected to the bottom of the guide frame 6.

[0020] Specifically, a No. 1 spring 9 is provided on both sides of the guide frame 6 , and there are several No. 1 springs 9 . One end of the No. 1 spring 9 is fixedly connected to the inner wall of the guide frame 6 , and the other end of the No. 1 spring 9 is fixedly connected to one end of the No. 1 movable plate 7 .

[0021] Specifically, a No. 2 spring 10 is provided at the inner bottom of the guide frame 6 , the bottom of the No. 2 spring 10 is fixedly connected to the inner bottom of the guide frame 6 , and the top of the No. 2 spring 10 is fixedly connected to the bottom of the No. 2 movable plate 8 .

[0022] Specifically, the first movable board 7 is a trapezoidal board that is narrow at the top and wide at the bottom, and the second movable board 8 is a trapezoidal board that is narrow at the front and wide at the back.

[0023] Specifically, the No. 1 fixing clip 4 and the No. 2 fixing clip 5 are movably connected at the rear by hinges, the No. 1 fixing block 11 is provided on the front of the No. 1 fixing clip 4, and the No. 2 fixing block 12 is provided on the front of the No. 2 fixing clip 5, and one end of the No. 1 fixing block 11 is clamped inside the No. 2 fixing block 12.

[0024] Specifically, a first through hole 13 is provided inside the first fixing block 11, a second through hole 14 is provided inside the second fixing block 12, the first through hole 13 and the second through hole 14 have the same specifications, and fastening bolts 15 are provided inside the first through hole 13 and the second through hole 14.

[0025] In this embodiment, when the lever-type regulating valve is used, the No. 1 fixing clamp 4 and the No. 2 fixing clamp 5 are sleeved on the outside of the valve cover 3. When the valve stem 2 needs to be used, the valve stem 2 is pushed downward, and the two sides of the valve stem 2 contact the No. 1 movable plate 7, and the bottom of the valve stem 2 contacts the No. 2 movable plate 8. The No. 1 movable plate 7 moves to both sides, and the No. 2 movable plate 8 moves to the bottom. A guiding device is provided to prevent the valve stem 2 from shifting, ensure that the valve stem 2 moves up and down smoothly, does not shift, and prevents the occurrence of eccentric wear of the valve stem 2.

[0026] The No. 1 spring 9 and the No. 2 spring 10 are provided to provide buffering during the movement of the No. 1 movable plate 7 and the No. 2 movable plate 8, preventing the valve stem 2 from moving too much and ensuring stability during use. When the No. 1 fixing clamp 4 and the No. 2 fixing clamp 5 are sleeved on the outside of the valve cover 3, the No. 1 fixing block 11 is connected with the No. 2 fixing block 12, and then the fastening bolts 15 are nailed into the No. 1 through hole 13 and the No. 2 through hole 14 to fix the No. 1 fixing clamp 4 and the No. 2 fixing clamp 5 to the outside of the valve cover 3, thereby improving the stability of the guide frame 6 during use.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive anti-stem wear mechanism for a lever-type regulating valve, comprising a valve body (1) and a valve stem (2), characterized in that: A valve cover (3) is provided on the top of the valve body (1), a valve stem (2) is provided on the top of the valve cover (3), a No. 1 fixing clamp (4) and a No. 2 fixing clamp (5) are provided on the outside of the valve cover (3), the No. 1 fixing clamp (4) and the No. 2 fixing clamp (5) are movably connected, the No. 1 fixing clamp (4) and the No. 2 fixing clamp (5) are clamped on the outside of the valve cover (3), a guide frame (6) is provided on the right side of the No. 2 fixing clamp (5), the guide frame (6) is located below the valve stem (2), a No. 1 movable plate (7) is provided on both sides of the inside of the guide frame (6), the No. 1 movable plate (7) is movably connected to both sides of the inside of the guide frame (6), a No. 2 movable plate (8) is provided on the bottom of the guide frame (6), and the No. 2 movable plate (8) is movably connected to the bottom of the guide frame (6).

2. The adaptive anti-valve stem wear mechanism of a lever-type regulating valve according to claim 1, characterized in that: A No. 1 spring (9) is provided on both sides of the guide frame (6), and the number of the No. 1 springs (9) is several. One end of the No. 1 spring (9) is fixedly connected to the inner wall of the guide frame (6), and the other end of the No. 1 spring (9) is fixedly connected to one end of the No. 1 movable plate (7).

3. The adaptive anti-valve stem wear mechanism of a lever-type regulating valve according to claim 1, characterized in that: A No. 2 spring (10) is provided at the inner bottom of the guide frame (6); the bottom of the No. 2 spring (10) is fixedly connected to the inner bottom of the guide frame (6); and the top of the No. 2 spring (10) is fixedly connected to the bottom of the No. 2 movable plate (8).

4. The adaptive anti-valve stem wear mechanism of a lever-type regulating valve according to claim 1, characterized in that: The first movable plate (7) is a trapezoidal plate that is narrow at the top and wide at the bottom, and the second movable plate (8) is a trapezoidal plate that is narrow at the front and wide at the back.

5. The adaptive anti-valve stem wear mechanism of a lever-type regulating valve according to claim 1, characterized in that: The first fixing clip (4) and the second fixing clip (5) are movably connected at the rear by a hinge, the first fixing clip (4) is provided with a first fixing block (11) at the front, the second fixing clip (5) is provided with a second fixing block (12) at the front, and one end of the first fixing block (11) is clamped inside the second fixing block (12).

6. The adaptive anti-valve stem wear mechanism of a lever-type regulating valve according to claim 5, characterized in that: The first fixing block (11) is provided with a first through hole (13) therein, the second fixing block (12) is provided with a second through hole (14) therein, the first through hole (13) and the second through hole (14) have the same specifications, and the first through hole (13) and the second through hole (14) are provided with fastening bolts (15) therein.

Images