Butterfly valve with enhanced sealing performance

Abstract

The utility model discloses a sealing enhanced butterfly valve, which belongs to the technical field of butterfly valves and comprises a butterfly valve body, flanges are arranged at two ends of the butterfly valve body, rubber pads are arranged at the other ends of the flanges, a plurality of slotted holes are arranged in the rubber pads, a filter screen is arranged in the rubber pads, and round steel plates are arranged on two sides in the butterfly valve body. The round steel plate is connected with the butterfly valve body through a rotating assembly. The rotating assembly comprises a fixing box, a rotating shaft, a rotating disc, a worm, a worm gear, a rotating rod and a lubricating assembly, the rotating assembly is arranged, the rotating disc drives the rotating shaft to rotate, the rotating shaft drives the worm to rotate, the worm rotates to drive the rotating rod to rotate through the worm gear, and the rotating rod rotates to drive the round steel plate to rotate in the butterfly valve body; as the worm gear cannot drive the worm to rotate, the round steel plate cannot rotate, the rotating effect on the round steel plate is better by arranging the rotating assembly, and the round steel plate cannot be extruded by water pressure to rotate.

Description

Technical Field

[0001] The utility model belongs to the technical field of butterfly valves, and in particular relates to a sealing enhanced butterfly valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for switching control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

[0003] Chinese patent application No. 2023209359601 discloses a flange butterfly valve with good sealing performance, which relates to the technical field of flange butterfly valves. This flange butterfly valve with good sealing performance includes a flange butterfly valve body, one side of the flange butterfly valve body is provided with a sealing enhancement filtering mechanism, and a double switch mechanism is provided through the flange butterfly valve body. This flange butterfly valve with good sealing performance, by turning the handle clockwise, the handle drives the first turning rod to rotate, the second gear drives the second turning rod to rotate, and the second turning rod drives the round steel plate to rotate. When the round steel plate rotates 90 degrees, the pipeline is fully opened, and the purpose of water passing through the flange butterfly valve body can be achieved.

[0004] In the above-mentioned patent, when the water pressure in the butterfly valve body is too high, the water flow will impact the circular steel plate to rotate, and there is no locking function between the first gear and the second gear, the sealing is low, and the practicality is poor. At the same time, the filter screen of the original device is fixedly connected to the rubber pad, and the filter screen is not easy to disassemble and clean. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a sealing enhanced butterfly valve, which has the characteristic that the round steel plate will not rotate due to water pressure impact.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing enhanced butterfly valve, comprising a butterfly valve body, flanges are arranged at both ends of the butterfly valve body, a rubber pad is arranged at the other end of the flange, a plurality of slots are arranged in the rubber pad, a filter is arranged in the rubber pad, round steel plates are arranged on both sides of the butterfly valve body, and the round steel plates are connected to the butterfly valve body through a rotating assembly;

[0007] The rotating assembly includes a fixed box, a rotating shaft, a rotating disk, a worm, a worm gear, a rotating rod and a lubrication assembly, wherein a fixed box is arranged at a position corresponding to the round steel plate on the upper end of the butterfly valve body, a rotating rod is arranged at the upper end of the round steel plate, a worm gear is arranged at the upper end of the rotating rod, a rotating shaft is arranged at a position corresponding to the worm gear at the front end of the fixed box, a rotating disk is arranged at the front end of the rotating shaft, a worm is arranged at the end of the rotating shaft away from the rotating disk, and a lubrication assembly is arranged at the upper end of the fixed box.

[0008] Preferably, the lubrication assembly includes an oil tank, a liquid level window, a folded tube, an oil filling tube and a rope body, wherein oil tanks are arranged on both sides of the upper end of the fixed box, a liquid level window is arranged at the front end of the oil tank, an oil filling tube is arranged on the upper side of one end of the oil tank, a folded tube is arranged in the oil tank, and the rope body is arranged inside the folded tube.

[0009] Preferably, a bearing rotating seat is provided between the rotating shaft and the fixed box and between the rotating rod and the butterfly valve body, and the worm and the rotating shaft are an integrated welded structure.

[0010] Preferably, one end of the oil filling pipe is threadedly connected to a pipe cover, and the oil tank and the fixing box as well as the folded pipe and the oil tank are spot welded.

[0011] Preferably, blocks are provided at both ends of the filter screen, a slot corresponding to the block is provided at one end of the rubber pad, a magnetic stripe 1 is provided at one end of the block, a magnetic stripe 2 is provided in the slot, a groove is provided at one end of the block, and a pull rod is provided in the groove.

[0012] Preferably, after the card block enters the card slot, the side edge of the card block is flush with the side edge of the rubber pad, and the side edge of the groove is arranged as an arc structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model sets a rotating assembly, and the rotating shaft rotates by rotating the turntable, and the rotating shaft drives the worm to rotate. The rotation of the worm drives the rotating rod to rotate through the worm gear. The rotation of the rotating rod can drive the round steel plate to rotate in the butterfly valve body. When the round steel plate is subjected to water pressure, the round steel plate will not rotate because the worm gear cannot drive the worm to rotate. The rotation effect of the round steel plate is better by setting the rotating assembly, and the round steel plate will not be squeezed and rotated by the water pressure.

[0015] 2. The utility model sets a card block, puts the filter into the rubber pad, and the card blocks at both ends of the filter enter the card slot of the rubber pad. The magnetic stripe 1 at one end of the card block is adsorbed with the magnetic stripe 2 in the card slot, so as to achieve the effect of adsorbing and fixing the card block and the filter. The card block can be pulled out of the card slot by the pull rod in the groove, so that the filter can be taken out of the rubber pad. The card block is set to facilitate the disassembly and cleaning of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a cutaway stereogram of the utility model;

[0018] Figure 3 This is a cutaway perspective view of the fuel tank of the utility model;

[0019] Figure 4 This is a cutaway stereogram of the utility model filter screen when installed;

[0020] In the figure: 1. Butterfly valve body; 2. Rotating assembly; 21. Fixed box; 22. Rotating shaft; 23. Turntable; 24. Worm; 25. Worm gear; 26. Rotating rod; 27. Lubrication assembly; 271. Oil tank; 272. Liquid level window; 273. Folding tube; 274. Oil filling pipe; 275. Rope body; 3. Rubber pad; 4. Slot hole; 5. Filter screen; 6. Flange; 7. Round steel plate; 8. Block; 9. Slot; 10. Magnetic strip 1; 11. Magnetic strip 2; 12. Groove; 13. Pull rod. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1

[0023] See also Figure 1-4 The utility model provides the following technical solutions: a sealing enhanced butterfly valve, comprising a butterfly valve body 1, flanges 6 are arranged at both ends of the butterfly valve body 1, a rubber pad 3 is arranged at the other end of the flange 6, a plurality of slots 4 are arranged in the rubber pad 3, a filter screen 5 is arranged in the rubber pad 3, round steel plates 7 are arranged on both sides of the inside of the butterfly valve body 1, and the round steel plates 7 are connected to the butterfly valve body 1 through a rotating component 2;

[0024] The rotating assembly 2 includes a fixed box 21, a rotating shaft 22, a rotating disk 23, a worm 24, a worm gear 25, a rotating rod 26 and a lubricating assembly 27, wherein a fixed box 21 is arranged at a position corresponding to the round steel plate 7 on the upper end of the butterfly valve body 1, a rotating rod 26 is arranged at the upper end of the round steel plate 7, a worm gear 25 is arranged at the upper end of the rotating rod 26, a rotating shaft 22 is arranged at a position corresponding to the worm gear 25 at the front end of the fixed box 21, a rotating disk 23 is arranged at the front end of the rotating shaft 22, a worm 24 is arranged at the end of the rotating shaft 22 away from the rotating disk 23, and a lubricating assembly 27 is arranged at the upper end of the fixed box 21.

[0025] Specifically, the lubrication assembly 27 includes an oil tank 271, a liquid level window 272, a folded tube 273, an oil filling tube 274 and a rope body 275, wherein the oil tank 271 is arranged on both sides of the upper end of the fixed box 21, the liquid level window 272 is arranged at the front end of the oil tank 271, the oil filling tube 274 is arranged on the upper side of one end of the oil tank 271, the folded tube 273 is arranged in the oil tank 271, and the rope body 275 is arranged inside the folded tube 273.

[0026] By adopting the above technical solution, the amount of lubricating oil in the oil tank 271 is observed through the liquid level window 272, and the lubricating oil is injected into the oil tank 271 through the oil filling pipe 274. The rope body 275 in the folded tube 273 absorbs the lubricating oil, and one end of the rope body 275 can drip the lubricating oil onto the worm 24 and the worm gear 25, so as to achieve the effect of lubricating the worm 24 and the worm gear 25. By setting the lubrication component 27, the worm 24 and the worm gear 25 can be automatically lubricated.

[0027] Specifically, a bearing rotating seat is provided between the rotating shaft 22 and the fixed box 21 and between the rotating rod 26 and the butterfly valve body 1 , and the worm 24 and the rotating shaft 22 are an integrated welded structure.

[0028] By adopting the above technical solution, the rotating shaft 22 and the rotating rod 26 can rotate in the fixing box 21 and the butterfly valve body 1 respectively, and the worm 24 and the rotating shaft 22 are a welded integral structure that is more sturdy and durable.

[0029] Specifically, one end of the oil filling pipe 274 is threadedly connected to a pipe cover, and the oil tank 271 and the fixing box 21 as well as the folded pipe 273 and the oil tank 271 are spot welded.

[0030] By adopting the above technical solution, a pipe cover is provided to seal the oil filling pipe 274 , and spot welding makes the oil tank 271 and the fixing box 21 as well as the folded pipe 273 and the oil tank 271 more secure.

[0031] When the present embodiment is used, when the sealing enhanced butterfly valve is used, the device is installed in a suitable position, the butterfly valve body 1 is installed and connected through the flange 6, the rubber pad 3 plays a sealing role, and the filter screen 5 in the rubber pad 3 plays a filtering role to prevent the device from entering the butterfly valve body 1. By setting the rotating assembly 2, the rotating shaft 22 is rotated by the rotating disk 23, and the rotating shaft 22 drives the worm 24 to rotate. The rotation of the worm 24 drives the rotating rod 26 to rotate through the worm gear 25. The rotation of the rotating rod 26 can drive the round steel plate 7 to rotate in the butterfly valve body 1. When the round steel plate 7 is subjected to water pressure, the worm gear 25 cannot drive the worm 24 to rotate. The round steel plate 7 will not rotate. By setting the rotating component 2, the rotation effect of the round steel plate 7 is better, and the round steel plate 7 will not be squeezed and rotated by the water pressure. By setting the lubricating component 27, the amount of lubricating oil in the oil tank 271 is observed through the liquid level window 272, and the lubricating oil is injected into the oil tank 271 through the oil filling pipe 274. The rope body 275 in the folding tube 273 absorbs the lubricating oil, and one end of the rope body 275 can drip the lubricating oil onto the worm 24 and the worm gear 25, so as to achieve the effect of lubricating the worm 24 and the worm gear 25. By setting the lubricating component 27, the worm 24 and the worm gear 25 can be automatically lubricated.

[0032] Example 2

[0033] The difference between this embodiment and embodiment 1 is that: blocks 8 are provided at both ends of the filter screen 5, a slot 9 corresponding to the block 8 is provided at one end of the rubber pad 3, a magnetic strip 10 is provided at one end of the block 8, a magnetic strip 2 11 is provided in the slot 9, a groove 12 is provided at one end of the block 8, and a pull rod 13 is provided in the groove 12.

[0034] By adopting the above technical solution, the filter 5 is placed in the rubber pad 3, the blocks 8 at both ends of the filter 5 enter the slots 9 of the rubber pad 3, and the magnetic strip 10 at one end of the block 8 is adsorbed with the magnetic strip 2 11 in the slot 9, so as to achieve the effect of adsorbing and fixing the block 8 and the filter 5. The block 8 can be pulled out of the slot 9 by the pull rod 13 in the groove 12, so that the filter 5 can be taken out of the rubber pad 3. The block 8 is provided to facilitate the disassembly and cleaning of the filter 5.

[0035] Specifically, after the block 8 enters the slot 9 , the side of the block 8 is flush with the side of the rubber pad 3 , and the side of the groove 12 is configured as an arc structure.

[0036] By adopting the above technical solution, after the card block 8 enters the card slot 9, the side of the card block 8 protrudes and affects the installation of the device. The side of the groove 12 is set as an arc structure to prevent fingers from being scratched by the side when they are inserted into the groove 12.

[0037] When this embodiment is used, the filter screen 5 is placed in the rubber pad 3 by setting the card block 8, and the card blocks 8 at both ends of the filter screen 5 enter the card slot 9 of the rubber pad 3. The magnetic strip 10 at one end of the card block 8 is adsorbed with the magnetic strip 2 11 in the card slot 9, so as to achieve the effect of adsorbing and fixing the card block 8 and the filter screen 5. The card block 8 can be pulled out of the card slot 9 by the pull rod 13 in the groove 12, so that the filter screen 5 can be taken out of the rubber pad 3. The card block 8 is provided to facilitate the disassembly and cleaning of the filter screen 5.

[0038] The structure and working principle of the butterfly valve body 1, rubber pad 3, slot 4, filter screen 5, flange 6 and round steel plate 7 in the utility model have been disclosed in Chinese patent application No. 2023209359601, which discloses a flange butterfly valve with good sealing performance. The working principle is that the butterfly valve body 1 is installed and connected through the flange 6, the rubber pad 3 plays a sealing role, and the filter screen 5 in the rubber pad 3 plays a filtering role to prevent the device from entering the butterfly valve body 1.

[0039] Working principle and use process of the utility model: When the sealing enhanced butterfly valve is used, the device is installed in a suitable position, the butterfly valve body 1 is installed and connected through the flange 6, the rubber pad 3 plays a sealing role, and the filter screen 5 in the rubber pad 3 plays a filtering role to prevent the device from entering the butterfly valve body 1. By setting the rotating component 2, the rotating shaft 22 is rotated by the turntable 23, the rotating shaft 22 drives the worm 24 to rotate, the rotation of the worm 24 drives the rotating rod 26 to rotate through the worm gear 25, and the rotation of the rotating rod 26 can drive the round steel plate 7 to rotate in the butterfly valve body 1. When the round steel plate 7 is subjected to water pressure, the worm gear 25 cannot drive the worm 24 to rotate, and the round steel plate 7 will not rotate. By setting the rotating component 2, the rotation effect of the round steel plate 7 is better, and the round steel plate 7 will not be squeezed and rotated by the water pressure. By setting the lubrication component 27, the oil level window 272 is observed. The amount of lubricating oil in the box 271 is injected into the oil tank 271 through the oil filling pipe 274, and the rope body 275 in the folding tube 273 absorbs the lubricating oil. One end of the rope body 275 can drip the lubricating oil onto the worm 24 and the worm gear 25, so as to achieve the effect of lubricating the worm 24 and the worm gear 25. By setting the lubricating component 27, the worm 24 and the worm gear 25 can be automatically lubricated. By setting the block 8, the filter 5 is placed in the rubber pad 3, and the blocks 8 at both ends of the filter 5 enter the slot 9 of the rubber pad 3. The magnetic strip 10 at one end of the block 8 is adsorbed by the magnetic strip 2 11 in the slot 9, so as to achieve the effect of adsorbing and fixing the block 8 and the filter 5. The block 8 can be pulled out of the slot 9 by the pull rod 13 in the groove 12, so that the filter 5 can be taken out of the rubber pad 3. The block 8 is convenient for disassembling and cleaning the filter 5.

[0040] 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 sealing enhanced butterfly valve, comprising a butterfly valve body, characterized in that: The butterfly valve body is provided with flanges at both ends, a rubber pad is provided at the other end of the flange, a plurality of slots are provided in the rubber pad, a filter is provided in the rubber pad, and round steel plates are provided on both sides of the butterfly valve body, and the round steel plates are connected to the butterfly valve body through a rotating assembly; The rotating assembly includes a fixed box, a rotating shaft, a rotating disk, a worm, a worm gear, a rotating rod and a lubrication assembly, wherein a fixed box is arranged at a position corresponding to the round steel plate on the upper end of the butterfly valve body, a rotating rod is arranged at the upper end of the round steel plate, a worm gear is arranged at the upper end of the rotating rod, a rotating shaft is arranged at a position corresponding to the worm gear at the front end of the fixed box, a rotating disk is arranged at the front end of the rotating shaft, a worm is arranged at the end of the rotating shaft away from the rotating disk, and a lubrication assembly is arranged at the upper end of the fixed box.

2. A sealing enhanced butterfly valve according to claim 1, characterized in that: The lubrication assembly includes an oil tank, a liquid level window, a folded tube, an oil filling tube and a rope body, wherein the oil tank is arranged on both sides of the upper end of the fixed box, the liquid level window is arranged at the front end of the oil tank, the oil filling tube is arranged on the upper side of one end of the oil tank, the folded tube is arranged in the oil tank, and the rope body is arranged inside the folded tube.

3. A sealing enhanced butterfly valve according to claim 2, characterized in that: A bearing rotating seat is arranged between the rotating shaft and the fixed box and between the rotating rod and the butterfly valve body, and the worm and the rotating shaft are a welded integral structure.

4. A sealing enhanced butterfly valve according to claim 3, characterized in that: One end of the oil filling pipe is threadedly connected with a pipe cover, and the oil tank and the fixing box as well as the folded pipe and the oil tank are spot welded.

5. The sealing enhanced butterfly valve according to claim 1, characterized in that: The filter screen is provided with blocks at both ends, a slot corresponding to the block is provided at one end of the rubber pad, a magnetic stripe 1 is provided at one end of the block, a magnetic stripe 2 is provided in the slot, a groove is provided at one end of the block, and a pull rod is provided in the groove.

6. The sealing enhanced butterfly valve according to claim 5, characterized in that: After the card block enters the card slot, the side edge of the card block is flush with the side edge of the rubber pad, and the side edge of the groove is arranged in an arc structure.

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