Anti-corrosion telescopic butterfly valve

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to an anti-corrosion telescopic butterfly valve which comprises a valve body, a filtering assembly is fixedly connected in the valve body and comprises a mounting ring, a screw rod, a nut, a screw hole, a filtering net, a clamping groove, a sealing sleeve and a clamping block, the screw rod is fixedly connected to the outer wall of the mounting ring, and the nut is fixedly connected to the outer wall of the sealing sleeve. A nut is movably connected to the outer wall of the screw rod, a clamping groove is formed in the outer wall of the mounting ring, and a sealing sleeve is fixedly connected to the interior of the clamping groove; according to the anti-corrosion telescopic butterfly valve, the effect of filtering the output end of the valve body is achieved through mutual cooperation of the filtering assemblies, impurities in water are conveniently filtered through the filtering net, and therefore the risk that the interior of the output end is blocked due to excessive impurities in the water is avoided as much as possible, and then the corrosion risk is caused is avoided; the filter screen is used for filtering impurities in water, so that the problem of corrosion and decay of the impurities in the output end caused by impurity accumulation can be avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to an anti-corrosion telescopic 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 the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member as a disc, which rotates around the valve axis to achieve opening and closing. However, most butterfly valves do not have a good anti-corrosion effect. Therefore, when transporting water, impurities in the water are easily accumulated at the output end of the valve body for a long time, causing the output end of the valve body to rot and affect the operation of the valve body.

[0003] For example, a corrosion-resistant telescopic butterfly valve disclosed in Chinese patent CN220396508U includes a valve seat, an eccentric valve plate is rotatably connected inside the valve seat, a telescopic joint is connected to the right end of the valve seat through a flange, an annular seat is integrally formed on the circumferential inner wall of the valve seat, a corrosion-resistant sealing ring sleeved outside the eccentric valve plate is abutted on the right end of the annular seat, a metal pressure ring is abutted on the right end of the corrosion-resistant sealing ring, a plurality of positioning rods are fixedly provided on the right end of the annular seat, the left end of the positioning rod movably penetrates the corrosion-resistant sealing ring and the metal pressure ring, and a pressure tube is movably sleeved outside the right end of the positioning rod, and the left and right ends of the pressure tube are respectively abutted against the right end of the metal pressure ring and the left end face of the telescopic joint. The utility model can realize the maintenance of the valve seat without disassembly, and is convenient for online replacement of the corrosion-resistant sealing ring. Through the compression of the metal pressure ring by the pressure tube, the corrosion-resistant sealing ring can be stably installed on the annular seat, and bolt-free fixing is realized, with a long service life and low labor intensity for disassembly.

[0004] The existing technology has the following problems:

[0005] The existing butterfly valve has a poor anti-corrosion effect. Therefore, when conveying water, impurities in the water are easily accumulated at the output end of the valve body for a long time, causing the output end of the valve body to rot and affect the operation of the valve body. Utility Model Content

[0006] The utility model provides an anti-corrosion telescopic butterfly valve to solve the problems raised in the above background technology.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the anti-corrosion telescopic butterfly valve described in the utility model includes a valve body, the interior of the valve body is fixedly connected with a filter assembly, the filter assembly includes a mounting ring, a screw, a nut, a screw hole, a filter screen, a slot, a sealing sleeve and a block, the outer wall of the mounting ring is fixedly connected with a screw, the outer wall of the screw is movably connected with a nut, the outer wall of the mounting ring is provided with a slot, the interior of the slot is fixedly connected with a sealing sleeve, and the interior of the slot is snap-connected with a block.

[0008] The outer wall of the clamping block is fixedly connected with a filter screen, and the outer wall of the filter screen is provided with screw holes.

[0009] Preferably, the mounting ring is fixedly connected to the valve body, and the filter screen forms a locking structure through a clamping block and a clamping groove. The cooperation between the filter screen, the clamping block and the clamping groove facilitates the removal and installation of the filter screen during use.

[0010] Preferably, the clamping groove is symmetrically arranged with respect to the center line of the mounting ring, and the clamping groove and the sealing sleeve form an integrated structure, so that the tightness of the connection between the clamping block and the clamping groove can be improved under the action of the sealing sleeve.

[0011] Preferably, the screw holes are evenly distributed on the outer wall of the filter screen, and the screw holes and the filter screen form an integrated structure, so that the screw holes can easily drive the filter screen to be threadedly connected with the screw rod.

[0012] Preferably, the screw hole and the screw rod are threadedly connected, and the screw rod is evenly distributed on the outer wall of the mounting ring, so that the filter screen and the mounting ring can be easily driven to be installed and fixed under the action of the screw rod.

[0013] Preferably, the screw rod and the nut are threadedly connected, and the filter screen forms a detachable structure through the nut and the screw rod. Through the cooperation between the filter screen, the nut and the screw rod, the filter screen can be easily driven to be disassembled and installed during use.

[0014] Preferably, the outer wall of the valve body is fixedly connected to a protective component, and the protective component includes an arc plate, a rubber block and a protective plate. The outer wall of the valve body is fixedly connected to the arc plate, the outer wall of the arc plate is fixedly connected to the rubber block, the outer wall of the rubber block is fixedly connected to the protective plate, and the protective plate and the rubber block form an integrated structure. The cooperation between the protective plate and the rubber block facilitates protection of the valve body during use.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] 1. The utility model provides an anti-corrosion telescopic butterfly valve, which adopts the mutual cooperation of filtering components to achieve the effect of filtering the output end of the valve body, and facilitates the filtering of impurities in the water through the filter screen, so as to avoid the risk of excessive impurities in the water causing internal blockage of the output end, thereby avoiding the risk of rotting. By filtering impurities in the water through the filter screen, it is possible to avoid the accumulation of impurities and the corrosion and rotting of impurities inside the output end. By fixing and disassembling the filter screen, it is convenient to clean and replace the filter screen, so as to avoid the problem of damage to the filter screen due to long-term use as much as possible, thereby improving the practicality of the valve body.

[0017] 2. The utility model provides an anti-corrosion telescopic butterfly valve, which adopts the mutual cooperation of protective components to achieve the effect of protecting the valve body, and uses a protective plate to protect the outer wall of the valve body. When it is hit by the outside, the protective plate is used to squeeze the rubber block, and the expansion and contraction rebound of the rubber block is used to absorb and release the pressure generated by the collision, so as to reduce the pressure as much as possible, thereby avoiding damage to the outer wall of the valve body caused by external collision as much as possible, and improving the protection of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the main structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the protection component in the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the filter assembly in the utility model;

[0023] Figure 5 For the utility model Figure 4 A magnified view of the structure in the middle.

[0024] In the figure: 1. valve body; 2. protection assembly; 201. arc plate; 202. rubber block; 203. protection plate; 3. filter assembly; 301. mounting ring; 302. screw; 303. nut; 304. screw hole; 305. filter screen; 306. slot; 307. sealing sleeve; 308. block. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] A preferred embodiment of the anti-corrosion telescopic butterfly valve provided by the utility model is as follows: Figures 1 to 5 As shown: it includes a valve body 1, the interior of the valve body 1 is fixedly connected with a filter assembly 3, the filter assembly 3 includes a mounting ring 301, a screw 302, a nut 303, a screw hole 304, a filter screen 305, a slot 306, a sealing sleeve 307 and a block 308, the outer wall of the mounting ring 301 is fixedly connected with the screw 302, the outer wall of the screw 302 is movably connected with the nut 303, the outer wall of the mounting ring 301 is provided with a slot 306, the interior of the slot 306 is fixedly connected with a sealing sleeve 307, and the interior of the slot 306 is snap-connected with a block 308.

[0028] The filter screen 305 is fixedly connected to the outer wall of the clamping block 308 , and the outer wall of the filter screen 305 is provided with screw holes 304 .

[0029] In this embodiment, the mounting ring 301 is fixedly connected to the valve body 1 , and the filter 305 forms a snap-fit ​​structure with the slot 306 through the clamping block 308 . Under the action of the clamping block 308 , the filter 305 is snap-fitted to the inside of the slot 306 , thereby limiting the position of the filter 305 .

[0030] Example 2

[0031] On the basis of Example 1, a preferred embodiment of the anti-corrosion telescopic butterfly valve provided by the utility model is as follows Figures 1 to 5 As shown, the clamping groove 306 is symmetrically arranged with respect to the center line of the mounting ring 301 , and the clamping groove 306 and the sealing sleeve 307 form an integrated structure, and the sealing sleeve 307 facilitates the tightness of the connection between the clamping block 308 and the clamping groove 306 .

[0032] In this embodiment, the screw holes 304 are evenly distributed on the outer wall of the filter screen 305 , and the screw holes 304 and the filter screen 305 form an integrated structure, so that the screw holes 304 can easily drive the filter screen 305 to be threadedly connected with the screw rod 302 .

[0033] Furthermore, the screw hole 304 and the screw rod 302 are threadedly connected, and the screw rod 302 is evenly distributed on the outer wall of the installation ring 301 , so that the filter screen 305 and the installation ring 301 can be easily installed and fixed under the action of the screw rod 302 .

[0034] Furthermore, the screw rod 302 and the nut 303 are threadedly connected, and the filter 305 forms a detachable structure through the nut 303 and the screw rod 302. After the screw hole 304 is threadedly connected to the outer wall of the screw rod 302, the filter 305 is pushed to one side, and then the nut 303 is manually rotated to be threaded to the inside of the screw rod 302 to lock the filter 305.

[0035] In addition, the outer wall of the valve body 1 is fixedly connected to a protective component 2, and the protective component 2 includes an arc plate 201, a rubber block 202 and a protective plate 203. The outer wall of the valve body 1 is fixedly connected to the arc plate 201, the outer wall of the arc plate 201 is fixedly connected to the rubber block 202, the outer wall of the rubber block 202 is fixedly connected to the protective plate 203, and the protective plate 203 and the rubber block 202 form an integrated structure. When the valve body 1 is hit by the outside world, the rubber block 202 is squeezed by the protective plate 203, and the expansion and contraction rebound of the rubber block 202 is used to absorb and release the pressure generated during the collision, thereby reducing the pressure as much as possible. At the same time, the protective plate 203 is used to block dust to prevent dust from covering the surface of the valve body 1.

[0036] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0037] Working principle: when in use, first thread the screw hole 304 to the outer wall of the screw rod 302, then push the filter screen 305 to one side, and under the action of the block 308, the filter screen 305 is driven to engage and connect to the inside of the slot 306, limit the filter screen 305, and use the sealing sleeve 307 to improve the tightness of the connection between the block 308 and the slot 306, and then manually rotate the nut 303 to thread it into the inside of the screw rod 302 to lock the filter screen 305. When the valve body 1 is hit by the outside world, the rubber block 202 is squeezed through the protective plate 203, and the expansion and rebound of the rubber block 202 is used to absorb and release the pressure generated during the collision, thereby reducing the pressure as much as possible. At the same time, under the action of the protective plate 203, it is easy to block dust to prevent dust from covering the surface of the valve body 1.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and 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, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An anti-corrosion telescopic butterfly valve, characterized in that: The invention comprises a valve body (1), wherein a filter assembly (3) is fixedly connected to the interior of the valve body (1), wherein the filter assembly (3) comprises a mounting ring (301), a screw rod (302), a nut (303), a screw hole (304), a filter screen (305), a clamping groove (306), a sealing sleeve (307) and a clamping block (308), wherein the outer wall of the mounting ring (301) is fixedly connected to the screw rod (302), the outer wall of the screw rod (302) is movably connected to the nut (303), the outer wall of the mounting ring (301) is provided with a clamping groove (306), the interior of the clamping groove (306) is fixedly connected to the sealing sleeve (307), and the interior of the clamping groove (306) is clamped and connected to the clamping block (308); The outer wall of the clamping block (308) is fixedly connected with a filter screen (305), and the outer wall of the filter screen (305) is provided with a screw hole (304).

2. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The mounting ring (301) and the valve body (1) are fixedly connected, and the filter screen (305) forms a clamping structure with the clamping block (308) and the clamping groove (306).

3. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The clamping groove (306) is symmetrically arranged with respect to the center line of the mounting ring (301), and the clamping groove (306) and the sealing sleeve (307) form an integrated structure.

4. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The screw holes (304) are evenly distributed on the outer wall of the filter screen (305), and the screw holes (304) and the filter screen (305) form an integrated structure.

5. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The screw holes (304) are threadedly connected to the screw rods (302), and the screw rods (302) are evenly distributed on the outer wall of the mounting ring (301).

6. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The screw rod (302) and the nut (303) are threadedly connected, and the filter screen (305) is detachably structured by the nut (303) and the screw rod (302).

7. The anti-corrosion telescopic butterfly valve according to claim 1, characterized in that: The outer wall of the valve body (1) is fixedly connected to a protective component (2), and the protective component (2) comprises an arc-shaped plate (201), a rubber block (202) and a protective plate (203); the outer wall of the valve body (1) is fixedly connected to the arc-shaped plate (201), the outer wall of the arc-shaped plate (201) is fixedly connected to the rubber block (202), the outer wall of the rubber block (202) is fixedly connected to the protective plate (203), and the protective plate (203) and the rubber block (202) form an integrated structure.

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