Fire-fighting butterfly valve adjusting mechanism capable of achieving automatic and manual switching

Abstract

The utility model discloses a fire-fighting butterfly valve adjusting mechanism capable of realizing automatic and manual switching, which comprises a valve body, the outer surface of the valve body is fixedly connected with a valve cylinder, the upper surface of the valve cylinder is fixedly connected with a sleeve, the upper surface of the sleeve is fixedly connected with a small spring, the top end of the small spring is provided with a rotary pressing ring, and the rotary pressing ring is fixedly connected with the valve cylinder. According to the fire-fighting butterfly valve adjusting mechanism capable of achieving automatic and manual switching, a servo motor needs to be started for automatic adjustment, a rotating shaft is made to rotate, an outer gear is driven to rotate, then an inner gear drives an extension rod and a valve rod to rotate, the position of a valve plate is adjusted, and manual adjustment needs to hold a hand wheel and press the hand wheel downwards; a rotary pressing ring compresses a small spring downwards through a connecting rod, an inserting column moves downwards till the bottom end of the inserting column is inserted into an inserting groove of an extension rod, at the moment, a hand wheel is rotated, the rotary pressing ring rotates in a mounting cylinder, the inserting column drives the extension rod and a valve rod to rotate, and the position of a valve plate is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of fire butterfly valves, in particular to a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching. Background Art

[0002] Fire signal butterfly valve has the advantages of simple structure, reliable sealing, easy opening, long life, easy maintenance, etc. Therefore, it is widely used in various pipelines of water supply and drainage, building fire protection and other systems, especially in fire protection pipelines.

[0003] After searching, it was found that a fire butterfly valve adjustment mechanism was disclosed in the Chinese Utility Model Patent Publication No. CN220727300U. When the valve plate needs to be adjusted during use of the device, the connecting shaft in the adjustment device can be connected to the connecting groove at the front end of the adjustment shaft, and then the motor in the adjustment device is controlled to drive the adjustment shaft to adjust the valve plate. However, the above-mentioned adjustment mechanism can only use the motor to automatically adjust the fire butterfly valve when there are no tools. When an emergency occurs, if there is no electricity and the motor cannot be started, it is more troublesome to adjust the fire butterfly valve, and the adjustment mechanism cannot be directly used for manual adjustment. Therefore, a fire butterfly valve adjustment mechanism that can realize automatic and manual switching adjustment is needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fire butterfly valve adjustment mechanism capable of realizing automatic and manual switching comprises a valve body, the outer surface of the valve body is fixedly connected to a valve cylinder, the upper surface of the valve cylinder is fixedly connected to a sleeve, the upper surface of the sleeve is fixedly connected to a small spring, a rotating pressure ring is arranged on the top of the small spring, a connecting rod is fixedly connected to the inner wall of the upper surface of the rotating pressure ring, and the upper surface of the sleeve is fixedly connected to a mounting cylinder.

[0007] In order to achieve the effect of rotating the plug column, as a fire butterfly valve adjustment mechanism capable of realizing automatic manual switching of the utility model, the upper surface of the connecting rod is fixedly connected with a hand wheel, and the inner wall of the valve cylinder is fixedly connected with a sealing block.

[0008] In order to achieve the effect of driving the extension rod to rotate, as a fire butterfly valve adjustment mechanism that can realize automatic manual switching of the utility model, the upper surface of the sealing block is fixedly connected with a large spring, and the top of the large spring is provided with an internal gear.

[0009] In order to achieve the effect of driving the external gear to rotate, as a fire butterfly valve adjustment mechanism that can realize automatic and manual switching in the utility model, the outer surface of the internal gear is meshingly connected with the external gear, the inner wall of the external gear is fixedly connected with a rotating shaft, and the outer surface of the rotating shaft is fixedly connected with a limiting ring.

[0010] In order to achieve the effect of providing power for the rotation of the rotating shaft, as a fire butterfly valve adjustment mechanism that can realize automatic and manual switching in the utility model, the outer surface of the valve body is fixedly connected to the motor seat, the inner wall of the motor seat is fixedly connected to the servo motor, and the output end of the servo motor is fixedly connected to the rotating shaft.

[0011] In order to achieve the effect of connecting the adjusting mechanism and the valve stem, as a fire butterfly valve adjusting mechanism that can realize automatic manual switching in the utility model, the inner wall of the internal gear is provided with an extension rod, the bottom end of the extension rod is fixedly connected to the valve stem, and the outer surface of the valve stem is fixedly connected to the valve plate.

[0012] In order to facilitate the insertion of the bottom end of the plug column, as a fire butterfly valve adjustment mechanism that can realize automatic manual switching, the top end of the extension rod is fixedly connected with a blocking piece, and the upper surface of the extension rod is provided with a slot.

[0013] In order to achieve the effect of fixing the connecting rod and the top of the pressure rod, as a fire butterfly valve adjustment mechanism that can realize automatic manual switching in the utility model, the lower surface of the handwheel is fixedly connected to the second top ring, the inner wall of the second top ring is fixedly connected to the pressure rod, the top of the connecting rod is fixedly connected to the first top ring, and the inner wall of the handwheel is fixedly connected to the plug column.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The fire butterfly valve regulating mechanism capable of realizing automatic and manual switching is provided with a sleeve, an installation cylinder, a pressing ring, a connecting rod, a hand wheel, an inner gear, an extension rod, an outer gear, a rotating shaft and a servo motor. For automatic adjustment, it is necessary to start the servo motor to rotate the rotating shaft, drive the outer gear to rotate, and then make the inner gear drive the extension rod and the valve stem to rotate, so as to adjust the position of the valve plate. For manual adjustment, it is necessary to manually hold the hand wheel and press the hand wheel downward, so as to make the pressing ring compress the small spring downward through the connecting rod, so that the plug column moves downward until the bottom end of the plug column is inserted into the slot of the extension rod. At this time, the hand wheel is turned, the pressing ring rotates in the installation cylinder, and the plug column drives the extension rod and the valve stem to rotate, so as to adjust the position of the valve plate, so that the fire butterfly valve regulating mechanism can realize automatic and manual switching adjustment, thereby improving the practicality of the device.

[0016] 2. The fire butterfly valve adjustment mechanism capable of realizing automatic and manual switching has a second top ring and a pressure rod. During the manual adjustment process, when the bottom end of the plug column is inserted into the slot, the pressure rod contacts the upper surface of the outer gear and presses the outer gear downward, so that the outer gear moves downward to compress the large spring and separates from the outer gear and no longer meshes. This avoids the two gears from meshing together during manual adjustment, thereby reducing gear wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching in Example 1 of the utility model;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching in Example 1 of the utility model;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching, viewed from the right side, in Example 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of the axonometric structure of a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching, viewed from above, in Example 1 of the utility model;

[0021] Figure 5 This is a schematic diagram of the axonometric structure of a gear in a fire butterfly valve regulating mechanism capable of realizing automatic and manual switching in Example 1 of the utility model;

[0022] Figure 6 This is a schematic diagram of the exploded structure of a hand wheel in a fire butterfly valve regulating mechanism capable of realizing automatic manual switching according to Example 1 of the utility model.

[0023] In the figure: 1. valve body; 2. valve cylinder; 3. sleeve; 4. mounting cylinder; 5. small spring; 6. rotating pressure ring; 7. connecting rod; 8. hand wheel; 9. sealing block; 10. large spring; 11. internal gear; 12. extension rod; 13. valve stem; 14. valve plate; 15. baffle plate; 16. slot; 17. external gear; 18. rotating shaft; 19. servo motor; 20. limit ring; 21. plug column; 22. first top ring; 23. second top ring; 24. pressure rod; 25. motor seat. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] like Figure 1-6 As shown, a fire butterfly valve regulating mechanism capable of realizing automatic manual switching comprises a valve body 1, the outer surface of the valve body 1 is fixedly connected with a valve cylinder 2, the upper surface of the valve cylinder 2 is fixedly connected with a sleeve 3, the upper surface of the sleeve 3 is fixedly connected with a small spring 5, the top of the small spring 5 is provided with a rotating pressure ring 6, the inner wall of the upper surface of the rotating pressure ring 6 is fixedly connected with a connecting rod 7, and the upper surface of the sleeve 3 is fixedly connected with a mounting cylinder 4.

[0027] When in use, through the arrangement of sleeve 3, mounting sleeve 4, rotating pressure ring 6, connecting rod 7, handwheel 8, internal gear 11, extension rod 12, external gear 17, rotating shaft 18 and servo motor 19, sleeve 3 is fixed on valve sleeve 2, five mounting sleeves 4 are fixed on sleeve 3, small spring 5 is arranged in mounting sleeve 4, rotating pressure ring 6 is placed on the top of small spring 5, five connecting rods 7 are inserted into rotating pressure ring 6, the top of connecting rod 7 is fixed in the first top ring 22 on handwheel 8, plug column 21 is fixed at the center of handwheel 8, valve plate 14 is fixed on valve stem 13 in valve body 1, the bottom end of extension rod 12 is fixed inside the top end of valve stem 13, slot 16 at the top end of extension rod 12 matches with the bottom end of plug column 21, internal gear 11 is installed on extension rod 12, internal gear 11 is meshed with external gear 17 on rotating shaft 18, rotating shaft 18 The bottom end is connected to the output end of the servo motor 19. When the fire butterfly valve is adjusted, automatic adjustment requires starting the servo motor 19 to rotate the rotating shaft 18, driving the outer gear 17 to rotate, and then the inner gear 11 drives the extension rod 12 and the valve stem 13 to rotate, and the position of the valve plate 14 is adjusted. Manual adjustment requires manually holding the hand wheel 8, pressing the hand wheel 8 downward, and using the connecting rod 7 to make the turning ring 6 compress the small spring 5 downward, so that the plug column 21 moves downward until the bottom end of the plug column 21 is inserted into the slot 16 of the extension rod 12. At this time, turn the hand wheel 8, the turning ring 6 rotates in the installation tube 4, and the plug column 21 drives the extension rod 12 and the valve stem 13 to rotate, and the position of the valve plate 14 is adjusted, so that the fire butterfly valve adjustment mechanism can realize automatic and manual switching adjustment, thereby improving the practicality of the device.

[0028] In this embodiment, a hand wheel 8 is fixedly connected to the upper surface of the connecting rod 7 , and a sealing block 9 is fixedly connected to the inner wall of the valve cylinder 2 .

[0029] During specific use, the plug post 21 is rotated by setting the hand wheel 8 .

[0030] In this embodiment, a large spring 10 is fixedly connected to the upper surface of the sealing block 9 , and an internal gear 11 is disposed at the top end of the large spring 10 .

[0031] During specific use, the inner gear 11 drives the extension rod 12 to rotate.

[0032] In this embodiment, the outer surface of the inner gear 11 is meshedly connected with the outer gear 17 , the inner wall of the outer gear 17 is fixedly connected with the rotating shaft 18 , and the outer surface of the rotating shaft 18 is fixedly connected with the limiting ring 20 .

[0033] During specific use, the rotating shaft 18 drives the outer gear 17 to rotate.

[0034] In this embodiment, a motor seat 25 is fixedly connected to the outer surface of the valve body 1 , a servo motor 19 is fixedly connected to the inner wall of the motor seat 25 , and a rotating shaft 18 is fixedly connected to the output end of the servo motor 19 .

[0035] During specific use, the servo motor 19 is provided to provide power for the rotation of the rotating shaft 18 .

[0036] In this embodiment, an extension rod 12 is disposed on the inner wall of the internal gear 11 , a valve stem 13 is fixedly connected to the bottom end of the extension rod 12 , and a valve plate 14 is fixedly connected to the outer surface of the valve stem 13 .

[0037] During specific use, the adjustment mechanism and the valve stem 13 are connected by setting the extension rod 12 .

[0038] In this embodiment, a blocking piece 15 is fixedly connected to the top of the extension rod 12 , and a slot 16 is formed on the upper surface of the extension rod 12 .

[0039] During specific use, the slot 16 is provided to facilitate the insertion of the bottom end of the plug post 21 .

[0040] In this embodiment, the lower surface of the handwheel 8 is fixedly connected to a second top ring 23, the inner wall of the second top ring 23 is fixedly connected to a pressure rod 24, the top end of the connecting rod 7 is fixedly connected to a first top ring 22, and the inner wall of the handwheel 8 is fixedly connected to a plug column 21.

[0041] During specific use, the first top ring 22 and the second top ring 23 are provided to fix the top ends of the connecting rod 7 and the pressing rod 24 .

[0042] Working principle: When the fire butterfly valve is adjusted, automatic adjustment requires starting the servo motor 19 to rotate the rotating shaft 18, driving the outer gear 17 to rotate, and then the inner gear 11 drives the extension rod 12 and the valve stem 13 to rotate, and the position of the valve plate 14 is adjusted. Manual adjustment requires manually holding the hand wheel 8, pressing the hand wheel 8 downward, and the turning and pressing ring 6 compresses the small spring 5 downward through the connecting rod 7, so that the plug column 21 moves downward until the bottom end of the plug column 21 is inserted into the slot 16 of the extension rod 12. At this time, turn the hand wheel 8, the turning and pressing ring 6 rotates in the installation tube 4, and the plug column 21 drives the extension rod 12 and the valve stem 13 to rotate, so as to adjust the position of the valve plate 14.

[0043] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fire butterfly valve regulating mechanism capable of realizing automatic and manual switching, comprising a valve body (1), characterized in that: The outer surface of the valve body (1) is fixedly connected to a valve cylinder (2); the upper surface of the valve cylinder (2) is fixedly connected to a sleeve (3); the upper surface of the sleeve (3) is fixedly connected to a small spring (5); a rotating pressure ring (6) is provided at the top of the small spring (5); the inner wall of the upper surface of the rotating pressure ring (6) is fixedly connected to a connecting rod (7); the upper surface of the sleeve (3) is fixedly connected to a mounting cylinder (4); the upper surface of the connecting rod (7) is fixedly connected to a hand wheel (8); the inner wall of the valve cylinder (2) is fixedly connected to a sealing block (9); the sealing block (9) A large spring (10) is fixedly connected to the upper surface of the large spring (10), and an internal gear (11) is arranged at the top end of the large spring (10); the outer surface of the internal gear (11) is meshingly connected to an external gear (17), the inner wall of the external gear (17) is fixedly connected to a rotating shaft (18), and the outer surface of the rotating shaft (18) is fixedly connected to a limiting ring (20); the outer surface of the valve body (1) is fixedly connected to a motor seat (25), the inner wall of the motor seat (25) is fixedly connected to a servo motor (19), and the output end of the servo motor (19) is fixedly connected to the rotating shaft (18).

2. A fire butterfly valve regulating mechanism capable of realizing automatic and manual switching according to claim 1, characterized in that: An extension rod (12) is provided on the inner wall of the internal gear (11), a valve stem (13) is fixedly connected to the bottom end of the extension rod (12), and a valve plate (14) is fixedly connected to the outer surface of the valve stem (13).

3. A fire butterfly valve regulating mechanism capable of realizing automatic and manual switching according to claim 2, characterized in that: A blocking piece (15) is fixedly connected to the top end of the extension rod (12), and a slot (16) is provided on the upper surface of the extension rod (12).

4. The fire butterfly valve regulating mechanism capable of realizing automatic and manual switching according to claim 1, characterized in that: The lower surface of the hand wheel (8) is fixedly connected to a second top ring (23), the inner wall of the second top ring (23) is fixedly connected to a pressure rod (24), the top end of the connecting rod (7) is fixedly connected to a first top ring (22), and the inner wall of the hand wheel (8) is fixedly connected to a plug post (21).

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