Wear-resistant tri-eccentric bidirectional metal hard sealing butterfly valve

Abstract

The utility model discloses a wear-resistant triple-eccentric bidirectional metal hard sealing butterfly valve which comprises a butterfly valve body, a hand wheel shaft is installed on one side of the top of the butterfly valve body, a spring is fixedly installed at the bottom end of the outer wall of a striking ring, the bottom end of the spring is fixedly installed on the side face of the butterfly valve body, and a supporting frame is fixed to the bottom end of the butterfly valve body. A positioning bolt is fixed to the bottom end of the outer side face of the supporting frame, the rail window is formed in a supporting plate in a penetrating mode, a stabilizing column is fixedly installed on the inner side face of the top of the supporting plate and attached to the inner wall of a stabilizing groove, the stabilizing groove is formed in the outer side face of the supporting frame, and a bottom plate is fixedly installed at the bottom end of the supporting plate. According to the abrasion-resistant triple-eccentric bidirectional metal hard sealing butterfly valve, the novel structural design is adopted, it is guaranteed that the butterfly valve can be stably used in the field complex environment through the height-adjustable bottom supporting structure, meanwhile, through the vibration beating mechanism, the hand wheel shaft can be beaten, corrosion can be shaken off, and rotation of the hand wheel shaft is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve. Background Art

[0002] The three-eccentric bidirectional metal hard-sealed butterfly valve has all the advantages of the three-eccentric butterfly valve and has a highly reliable bidirectional seal. The sealing surface materials of the three-eccentric bidirectional high-performance butterfly valve include alloy steel, polyol, rubber, and polytetrafluoroethylene seal. In addition to the wafer type, the connection method also includes flange type. In addition to electric, the driving methods of the three-eccentric bidirectional high-performance butterfly valve also include manual, worm gear drive, and pneumatic.

[0003] The existing three-eccentric bidirectional metal hard-sealed butterfly valve is prone to rust at the impeller shaft when used in outdoor environments, especially in the wild. It is difficult to rotate during maintenance and adjustment, and the bottom lacks support, so it cannot be stably installed and used in complex outdoor environments. In view of the above problems, it is urgent to innovate the design based on the original three-eccentric bidirectional metal hard-sealed butterfly valve. Utility Model Content

[0004] The purpose of the utility model is to provide a wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve to solve the problems raised in the above background technology that the existing three-eccentric bidirectional metal hard-sealed butterfly valve is prone to rust on the impeller shaft when used in outdoor environments, especially in field environments, is difficult to rotate during maintenance and adjustment, and lacks support at the bottom, making it impossible to be stably installed and used in complex outdoor environments.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve, comprising a butterfly valve body, a handwheel shaft is installed on one side of the top of the butterfly valve body, a base plate is fixed on the side wall of the butterfly valve body above the handwheel shaft, a locking bolt is installed through the base plate, the bottom end of the locking bolt is connected to the top of the striking ring, a striking bump is fixedly installed on the inner wall of the striking ring, a spring is fixedly installed on the bottom end of the outer wall of the striking ring, the bottom end of the spring is fixedly installed on the side of the butterfly valve body, a support frame is fixed to the bottom end of the butterfly valve body, a positioning bolt is fixed on the bottom end of the outer side surface of the support frame, a positioning nut is installed on the end of the positioning bolt, the positioning bolt passes through a track window, the track window is opened on the support plate, a stabilizing column is fixedly installed on the inner side surface of the top of the support plate, the stabilizing column is fitted with the inner wall of the stabilizing groove, the stabilizing groove is opened on the outer side surface of the support frame, and a base plate is fixedly installed on the bottom end of the support plate.

[0006] Preferably, the bottom end of the locking bolt is threadedly connected to the inner wall of the locking hole, and the locking hole is opened at the top center of the striking ring.

[0007] Preferably, the striking bumps are distributed at equal angles on the inner wall of the striking ring, and the center of the striking ring and the center of the handwheel shaft are on the same horizontal line.

[0008] Preferably, the front view shape of the support frame is an "H" shape, and the outer side surface of the support frame is tightly fitted with the inner side surface of the support plate.

[0009] Preferably, the positioning bolts are slidably connected to the track window, and the positioning bolts are symmetrically distributed about the center of the support plate.

[0010] Preferably, the support plates are symmetrically distributed about the center of the base plate, and the side-view length of the base plate is greater than the side-view length of the support frame.

[0011] Preferably, the stabilizing column is slidably connected to the stabilizing groove, the front view cross-sectional shape of the stabilizing column is "T"-shaped, and the diameter of the end of the stabilizing column is larger than the width of the opening of the stabilizing groove.

[0012] Preferably, a buffer pad is fixedly mounted on the bottom surface of the bottom plate, and the length and width of the bottom plate are both greater than the length and width of the butterfly valve body.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve adopts a new structural design, and through the height-adjustable bottom support structure, it ensures that the butterfly valve can be stably used in complex field environments, and at the same time, through the vibration striking mechanism, the hand wheel shaft can be struck to shake off the rust, which is convenient for the rotation of the hand wheel shaft;

[0014] 1. Lock the striking ring with the locking bolt to avoid spring deformation. When in use, separate the locking bolt from the striking ring and move the striking ring. The striking ring vibrates under the action of the spring and strikes the handwheel shaft with the striking bump to loosen the handwheel shaft for easy rotation.

[0015] 2. The support plate carries the stabilizing column to slide vertically along the stabilizing groove, and the track window and the positioning bolt slide relative to each other, and the relative position of the support plate and the support frame is adjusted, so that the support frame, support plate and bottom plate can stably support and position the butterfly valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the side cross-sectional structure of the striking ring of the utility model;

[0018] Figure 3 This is a schematic diagram of the front cross-sectional structure of the support frame and the support plate of the utility model;

[0019] Figure 4This is a side view structural diagram of the support frame and support plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the side structure of the stabilizing column and stabilizing groove of the utility model.

[0021] In the figure: 1. Butterfly valve body; 2. Handwheel shaft; 3. Base plate; 4. Locking bolt; 5. Locking hole; 6. Striking ring; 7. Striking bump; 8. Spring; 9. Support frame; 10. Positioning bolt; 11. Positioning nut; 12. Track window; 13. Support plate; 14. Stabilizing column; 15. Stabilizing groove; 16. Bottom plate; 17. Buffer pad. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides a technical solution: a wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve, including a butterfly valve body 1, a handwheel shaft 2, a base plate 3, a locking bolt 4, a locking hole 5, a striking ring 6, a striking bump 7, a spring 8, a support frame 9, a positioning bolt 10, a positioning nut 11, a track window 12, a support plate 13, a stabilizing column 14, a stabilizing groove 15, a bottom plate 16 and a buffer pad 17. A handwheel shaft 2 is installed on one side of the top of the butterfly valve body 1, a base plate 3 is fixed on the side wall of the butterfly valve body 1 above the handwheel shaft 2, a locking bolt 4 is installed through the base plate 3, and the bottom end of the locking bolt 4 is connected to the top end of the striking ring 6, and the striking A striking bump 7 is fixedly installed on the inner wall of the ring 6, a spring 8 is fixedly installed on the bottom end of the outer wall of the striking ring 6, the bottom end of the spring 8 is fixedly installed on the side of the butterfly valve body 1, a support frame 9 is fixed to the bottom end of the butterfly valve body 1, a positioning bolt 10 is fixed to the bottom end of the outer side of the support frame 9, a positioning nut 11 is installed at the end of the positioning bolt 10, the positioning bolt 10 passes through the track window 12, the track window 12 passes through and is opened on the support plate 13, a stabilizing column 14 is fixedly installed on the inner side of the top of the support plate 13, the stabilizing column 14 is fitted with the inner wall of the stabilizing groove 15, the stabilizing groove 15 is opened on the outer side of the support frame 9, and a bottom plate 16 is fixedly installed on the bottom end of the support plate 13.

[0024] The bottom end of the locking bolt 4 in this example is threadedly connected to the inner wall of the locking hole 5, and the locking hole 5 is opened at the top center of the striking ring 6. The above-mentioned structural design can stably lock the striking ring 6 to prevent the striking ring 6 from shaking when not in use and prevent the spring 8 from deformation.

[0025] The striking bumps 7 are distributed at equal angles on the inner wall of the striking ring 6, and the center of the striking ring 6 and the center of the handwheel shaft 2 are on the same horizontal line. The above-mentioned structural design enables the striking ring 6 to hit the handwheel shaft 2 through the striking bumps 7 when vibrating, so that the handwheel shaft 2 is loosened and can be rotated conveniently.

[0026] The front view shape of the support frame 9 is "H"-shaped, and the outer side of the support frame 9 is tightly fitted with the inner side of the support plate 13. The above structural design can stably support and position the butterfly valve body 1 from the bottom to ensure the stable use of the butterfly valve body 1.

[0027] The positioning bolts 10 and the track window 12 are slidably connected, and the positioning bolts 10 are symmetrically distributed about the center of the support plate 13. The above structural design enables the support plate 13 to slide relative to the track window 12 and the positioning bolts 10, so that the working position of the support plate 13 can be easily adjusted.

[0028] The support plate 13 is symmetrically distributed about the center of the bottom plate 16, and the side view length of the bottom plate 16 is greater than the side view length of the support frame 9. The above structural design ensures that the support plate 13 can fit with the support frame 9 over a large area, and cooperate with the bottom plate 16 to support and fix the support frame 9 and the butterfly valve body 1.

[0029] The stabilizing column 14 and the stabilizing groove 15 are slidably connected. The front cross-sectional shape of the stabilizing column 14 is "T"-shaped. The diameter of the end of the stabilizing column 14 is larger than the width of the opening of the stabilizing groove 15. The above structural design can prevent the stabilizing column 14 and the stabilizing groove 15 from slipping, and improve the stability of the support plate 13 when it is stationary and adjusted.

[0030] A buffer pad 17 is fixedly installed on the bottom surface of the bottom plate 16. The length and width of the bottom plate 16 are greater than the length and width of the butterfly valve body 1. The above-mentioned structural design enables the bottom plate 16 and the buffer pad 17 to support and protect the butterfly valve body 1 and reduce vibration, thereby preventing the butterfly valve body 1 from being damaged due to pipeline vibration.

[0031] Working principle: When using the device, pull down the support plate 13, the support plate 13 slides down vertically along the stable groove 15 with the stabilizing column 14, and the track window 12 also slides down steadily along the positioning bolt 10 until the buffer pad 17 on the bottom surface of the bottom plate 16 fits with the ground, rotate the positioning nut 11 to squeeze the support plate 13 and fit it with the outer side of the support frame 9, and the support frame 9 and the bottom plate 16 provide stable support and protection for the butterfly valve body 1;

[0032] When it is necessary to turn the handwheel at the end of the handwheel shaft 2 to adjust the butterfly valve body 1, due to the complex outdoor environment, the handwheel shaft 2 is exposed to the wind and rain, and the handwheel shaft 2 is rusted. At this time, the upward screw locking bolt 4 is separated from the locking hole 5 at the top of the striking ring 6, and the striking ring 6 is turned to drive the spring 8 to tilt, and the striking ring 6 is released. The striking ring 6 vibrates, and the striking bump 7 on its inner side hits the handwheel shaft 2, causing the rust on the handwheel shaft 2 to fall off, and the handwheel shaft 2 is loosened, and can be easily rotated. This is the working principle of the wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve.

[0033] 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. A wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve, comprising a butterfly valve body (1), characterized in that: A handwheel shaft (2) is installed on one side of the top of the butterfly valve body (1); a base plate (3) is fixed on the side wall of the butterfly valve body (1) above the handwheel shaft (2); a locking bolt (4) is installed through the base plate (3); the bottom end of the locking bolt (4) is connected to the top of the striking ring (6); a striking protrusion (7) is fixedly installed on the inner wall of the striking ring (6); a spring (8) is fixedly installed on the bottom end of the outer wall of the striking ring (6); the bottom end of the spring (8) is fixedly installed on the side of the butterfly valve body (1); and a support frame (9) is fixed at the bottom end of the butterfly valve body (1). A positioning bolt (10) is fixed to the bottom end of the outer side surface of the support frame (9), and a positioning nut (11) is installed at the end of the positioning bolt (10). The positioning bolt (10) passes through the track window (12), and the track window (12) is penetrated and opened on the support plate (13). A stabilizing column (14) is fixedly installed on the inner side surface of the top of the support plate (13), and the stabilizing column (14) is in contact with the inner wall of the stabilizing groove (15). The stabilizing groove (15) is opened on the outer side surface of the support frame (9), and a bottom plate (16) is fixedly installed at the bottom end of the support plate (13).

2. A wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1, characterized in that: The bottom end of the locking bolt (4) is threadedly connected to the inner wall of the locking hole (5), and the locking hole (5) is opened at the top center of the striking ring (6).

3. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1 is characterized by: The striking protrusions (7) are distributed at equal angles on the inner wall of the striking ring (6), and the center of the striking ring (6) and the center of the handwheel shaft (2) are located on the same horizontal straight line.

4. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1 is characterized by: The front view shape of the support frame (9) is an "H" shape, and the outer side surface of the support frame (9) is tightly fitted with the inner side surface of the support plate (13).

5. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1 is characterized by: The positioning bolts (10) are slidably connected to the track window (12), and the positioning bolts (10) are symmetrically distributed about the center of the support plate (13).

6. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1 is characterized by: The support plates (13) are symmetrically distributed about the center of the bottom plate (16), and the side-view length of the bottom plate (16) is greater than the side-view length of the support frame (9).

7. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1 is characterized by: The stabilizing column (14) and the stabilizing groove (15) are slidably connected, the front view cross-sectional shape of the stabilizing column (14) is a "T" shape, and the diameter of the end of the stabilizing column (14) is greater than the width of the opening of the stabilizing groove (15).

8. The wear-resistant three-eccentric bidirectional metal hard-sealed butterfly valve according to claim 1, characterized in that: A buffer pad (17) is fixedly mounted on the bottom surface of the bottom plate (16), and the length and width of the bottom plate (16) are both greater than the length and width of the butterfly valve body (1).

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