Wear-resistant and corrosion-resistant butterfly valve

Abstract

The utility model discloses a wear-resistant corrosion-resistant butterfly valve which comprises a valve body, a valve plate is rotatably connected in the valve body, a valve shaft is connected outside the valve plate, a rotating disc is fixedly connected above the valve shaft, a first protective ring and a second protective ring are sleeved outside the valve body, two first limiting blocks are connected outside the second protective ring, and the first limiting blocks are fixedly connected with the rotating disc. Two second limiting blocks are connected to the outer portion of the first protection ring, a clamping structure is arranged in the first limiting block, and the clamping structure is connected with the second limiting blocks in a clamped mode. According to the butterfly valve, the first protective ring, the second protective ring, the clamping structure, the first limiting block and the second limiting block are arranged, and the butterfly valve is matched with the fixing column, the clamping plate and the spring, so that the first protective ring and the second protective ring can be rapidly assembled with the outer surface of the valve body; and after the first protective ring and the second protective ring are assembled, the surface of the valve body can be sealed, the phenomenon that liquid leaks when the butterfly valve is used for a long time is avoided, and therefore the applicability of the butterfly valve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to butterfly valve technical field, concretely is a kind of wear-resistant corrosion-resistant butterfly valve. BACKGROUND

[0002] Butterfly valve is also called flap valve, it is a kind of simple structure regulating valve, it can be used for low-pressure pipeline medium switch control butterfly valve is the valve that disc, around the valve shaft rotation is closed to reach the opening and closing, the butterfly valve of current is to improve its corrosion resistance and wear resistance, often use high corrosion resistance stainless steel material, and butterfly valve itself is assembled and connected with pipeline and used, however, the outer surface of butterfly valve mostly does not have sealing structure, it is difficult to seal the part of butterfly valve assembly, when butterfly valve is used for a long time, liquid is prone to leakage, thereby reduce the applicability of butterfly valve. UTILITY MODEL CONTENTS

[0003] The utility model discloses a kind of wear-resistant corrosion-resistant butterfly valve, to solve the problem raised in above-mentioned background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of wear-resistant corrosion-resistant butterfly valve, including valve body, the valve body is rotatably connected with valve plate, the valve plate is connected with valve shaft, the upper of the valve shaft is fixedly connected with rotating disc, the valve body is sleeved with protective ring one and protective ring two, the protective ring two is connected with two limit blocks one outside, the protective ring one is connected with two limit blocks two outside, the limit block one is equipped with clamping structure inside, the clamping structure is clamped with limit block two, the upper of the limit block one is fixedly connected with locking structure, the locking structure is overlapped with rotating disc, the clamping structure includes guide rod and fixed column, one end of the fixed column is fixedly connected with fixed disc, the fixed column is sleeved with spring, the fixed column is slidably connected with clamping plate outside.

[0005] As further preferred of the technical scheme, the valve shaft is rotatably connected in valve body, the protective ring one is overlapped with protective ring two, the valve shaft is clamped in protective ring two, the valve shaft is clamped in protective ring one.

[0006] As further preferred of the technical scheme, the limit block one is overlapped with limit block two, the guide rod is rotatably connected in limit block one, the fixed column is fixedly connected outside guide rod.

[0007] As further preferred of the technical scheme, the fixed column is clamped in limit block two, the clamping plate is connected with fixed disc by spring, the clamping plate is clamped in limit block two.

[0008] As further preferred of the technical scheme, the locking structure includes vertical plate, the vertical plate is fixedly connected on the upper of limit block one, the one side of the vertical plate is fixedly connected with lug.

[0009] As a further preferred of the technical solution, the lug is internally threaded connected with a threaded rod, and the bottom end of the threaded rod is fixedly connected with a suction cup.

[0010] As a further preferred of the technical solution, the suction cup is overlapped with a rotating disc, and the rotating disc is clamped with a vertical plate.

[0011] The utility model provides a wear -resisting corrosion -resistant butterfly valve has the following beneficial effects:

[0012] (1) the utility model discloses a protection ring one, protection ring two, clamping structure, limit block one and limit block two are set, when protection ring one and protection ring two are pasted and exert the tension to the clamping plate, the spring is deformed when the clamping plate slides on the surface of fixed column, and the fixed column is rotated around the guide rod as the center, when the fixed column and limit block two are clamped, the clamping plate is reset through the spring, and the reset clamping plate is clamped with limit block two, the cooperation between the fixed column, the clamping plate and the spring makes protection ring one and protection ring two can realize the function of quick assembly with the outer surface of the valve body, and protection ring one and protection ring two can seal the surface of the valve body after assembly, avoid the phenomenon that liquid leaks when the butterfly valve is used for a long time, thereby guaranteeing the applicability of the butterfly valve.

[0013] (2) the utility model discloses a locking structure is set, when protection ring one and protection ring two are installed, the vertical plate is pasted with the rotating disc, when the butterfly valve is used and drives the threaded rod to rotate, the threaded rod moves in the lug, and the suction cup below the threaded rod is pasted with the upper rotating disc when moving, thereby the position of the rotating disc can be locked, and the phenomenon that the rotating disc is offset by external force is avoided. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the protection ring two explosion structure schematic diagram of the utility model;

[0016] Figure 3 It is the clamping structure three -dimensional structure schematic diagram of the utility model;

[0017] Figure 4 It is the locking structure three -dimensional structure schematic diagram of the utility model;

[0018] In the diagram: 1. Valve body; 2. Valve plate; 3. Valve shaft; 4. Turntable; 5. Protective ring one; 6. Protective ring two; 7. Snap-fit ​​structure; 701. Guide rod; 702. Fixing post; 703. Fixing disc; 704. Clamping plate; 705. Spring; 8. Locking structure; 801. Vertical plate; 802. Protrusion; 803. Threaded rod; 804. Suction cup; 9. Limiting block one; 10. Limiting block two. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown in this embodiment, a wear-resistant and corrosion-resistant butterfly valve includes a valve body 1, a valve plate 2 rotatably connected inside the valve body 1, a valve shaft 3 connected outside the valve plate 2, a turntable 4 fixedly connected above the valve shaft 3, a protective ring 5 and a protective ring 6 sleeved on the valve body 1, two limiting blocks 9 connected outside the protective ring 6, and two limiting blocks 10 connected outside the protective ring 5, a snap-fit ​​structure 7 provided inside the limiting block 9, the snap-fit ​​structure 7 snaps with the limiting block 10, a locking structure 8 fixedly connected above the limiting block 9, the locking structure 8 overlaps with the turntable 4, the snap-fit ​​structure 7 includes a guide rod 701 and a fixing post 702, a fixing plate 703 fixedly connected to one end of the fixing post 702, a spring 705 sleeved on the fixing post 702, and a locking plate 704 slidably connected outside the fixing post 702.

[0021] like Figure 1 and Figure 3 As shown, valve shaft 3 is rotatably connected inside valve body 1. Protective ring 1 5 overlaps with protective ring 2 6. Valve shaft 3 is snapped inside protective ring 2 6. Valve shaft 3 is snapped inside protective ring 1 5. Limiting block 1 9 overlaps with limiting block 2 10. Guide rod 701 is rotatably connected inside limiting block 1 9. Fixing post 702 is fixedly connected outside guide rod 701. Fixing post 702 is snapped inside limiting block 2 10. Clamping plate 704 is connected to fixing disc 703 through spring 705. Clamping plate 704 is snapped inside limiting block 2 10.

[0022] By setting a spring 705, when a pulling force is applied to the clamping plate 704, the clamping plate 704 slides on the surface of the fixed post 702, which will cause the spring 705 to deform, so that the spring 705 provides a certain support for the movement of the clamping plate 704. When the clamping plate 704 loses resistance, it will be reset by the spring 705, thus preventing the clamping plate 704 from getting stuck when moving.

[0023] like Figure 4As shown, the locking structure 8 comprises a vertical plate 801 fixedly connected above the limiting block one 9, one side of the vertical plate 801 is fixedly connected with a protruding block 802, the protruding block 802 is threadedly connected with a threaded rod 803, the bottom end of the threaded rod 803 is fixedly connected with a suction disc 804, the suction disc 804 is overlapped with the rotating disc 4, and the rotating disc 4 is clamped with the vertical plate 801.

[0024] By arranging the locking structure 8, when the protective ring one 5 and the protective ring two 6 are installed, the vertical plate 801 is attached to the rotating disc 4, when the butterfly valve is used to drive the threaded rod 803 to rotate, the threaded rod 803 moves in the protruding block 802, and when the threaded rod 803 moves, the suction disc 804 below is attached to the upper part of the rotating disc 4, so that the position of the rotating disc 4 can be locked, avoiding the phenomenon that the rotating disc 4 is deviated due to external force.

[0025] The utility model provides a wear -resisting anticorrosion butterfly valve, concrete working principle is as follows:

[0026] When the butterfly valve is used, the valve plate 2 and the valve shaft 3 are assembled with the valve body 1, the protective ring one 5 and the protective ring two 6 are respectively sleeved on the surface of the valve body 1 after assembly is completed, the valve shaft 3 is clamped with the protective ring two 6 and the limiting block one 9, the protective ring one 5 and the limiting block two 10 are clamped with the valve shaft 3, when the protective ring one 5 is attached to the protective ring two 6, the clamping plate 704 is pulled, the clamping plate 704 slides on the surface of the fixed column 702 to drive the spring 705 to be deformed, drives the fixed column 702 to rotate around the guide rod 701, the clamping plate 704 is loosened after the fixed column 702 is clamped with the limiting block two 10, the clamping plate 704 is reset through the spring 705, the clamping plate 704 after reset is clamped with the limiting block two 10, and the vertical plate 801 is attached to the rotating disc 4, when the butterfly valve is used to drive the threaded rod 803 to rotate, the threaded rod 803 moves in the protruding block 802, and when the threaded rod 803 moves, the suction disc 804 below is attached to the upper part of the rotating disc 4.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A wear resistant corrosion resistant butterfly valve comprising a valve body (1), characterized in that: The valve body (1) is rotatably connected with a valve plate (2), the valve plate (2) is connected with a valve shaft (3), the upper side of the valve shaft (3) is fixedly connected with a rotating disc (4), the valve body (1) is sleeved with a protective ring one (5) and a protective ring two (6), the protective ring two (6) is connected with two limiting blocks one (9), the protective ring one (5) is connected with two limiting blocks two (10), the limiting blocks one (9) are provided with clamping structures (7), the clamping structures (7) are clamped with the limiting blocks two (10), the upper side of the limiting blocks one (9) is fixedly connected with locking structures (8), the locking structures (8) are overlapped with the rotating disc (4), the clamping structures (7) comprise guide rods (701) and fixed columns (702), one end of the fixed column (702) is fixedly connected with a fixed disc (703), the fixed column (702) is sleeved with springs (705), the fixed column (702) is slidably connected with clamping plates (704).

2. A wear resistant corrosion resistant butterfly valve according to claim 1, characterized in that: The valve shaft (3) is rotatably connected in the valve body (1), the protective ring one (5) is overlapped with the protective ring two (6), the valve shaft (3) is clamped in the protective ring two (6), and the valve shaft (3) is clamped in the protective ring one (5).

3. A wear resistant corrosion resistant butterfly valve according to claim 1, characterized in that: The limiting blocks one (9) are overlapped with the limiting blocks two (10), the guide rods (701) are rotatably connected in the limiting blocks one (9), and the fixed columns (702) are fixedly connected outside the guide rods (701).

4. The abrasion and corrosion resistant butterfly valve of claim 1, wherein: The fixed columns (702) are clamped in the limiting blocks two (10), the clamping plates (704) are connected with the fixed discs (703) through the springs (705), and the clamping plates (704) are clamped in the limiting blocks two (10).

5. A wear resistant corrosion resistant butterfly valve according to claim 1, wherein: The locking structures (8) comprise vertical plates (801), the vertical plates (801) are fixedly connected above the limiting blocks one (9), and one side of the vertical plates (801) is fixedly connected with convex blocks (802).

6. A wear resistant corrosion resistant butterfly valve according to claim 5 wherein: The convex blocks (802) are screw-connected with threaded rods (803) in the inside, and the bottom ends of the threaded rods (803) are fixedly connected with sucking discs (804).

7. A wear resistant corrosion resistant butterfly valve according to claim 6, characterized in that: The sucking discs (804) are overlapped with the rotating disc (4), and the rotating disc (4) is clamped with the vertical plates (801).

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