Butterfly valve convenient to overhaul

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a butterfly valve convenient to overhaul, which comprises a butterfly valve body, the top of the butterfly valve body is fixedly connected with a protective shell, the inside of the protective shell is fixedly connected with a partition plate, the top of the partition plate is provided with a cover plate, and the bottom of the cover plate is provided with a sealing assembly. A mounting seat is fixedly connected to the interior of the protective shell, a clamping groove is formed in the mounting seat, a connecting pin is slidably connected to the interior of the cover plate, a limiting plate is fixedly connected to the outer wall of the connecting pin, a first limiting column is fixedly connected to the interior of the connecting pin, and clamping blocks which are symmetrically arranged are slidably connected to the outer wall of the first limiting column. According to the quick-mounting butterfly valve, through cooperation of the partition plate, the mounting base, the cover plate, the first sealing ring, the connecting pin, the limiting plate, the first limiting column and the clamping block, the quick mounting effect is achieved, the problems that an operator needs to mount a large number of bolts in the mounting process, and the mounting process is tedious are solved, and the mounting efficiency of the butterfly valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve which is easy to repair. Background Art

[0002] A butterfly valve is a commonly used control valve, usually used to regulate the flow, pressure and temperature of a fluid medium. Its name comes from the construction form of the valve, whose internal structure resembles the shape of a butterfly. The butterfly valve controls the flow of the medium by rotating a disc or valve core called a butterfly plate. In order to greatly reduce the downtime caused by repairing or replacing valve parts. Operators can perform necessary maintenance work more quickly, thereby reducing the downtime of the production line and improving production efficiency. Therefore, a butterfly valve that is easy to repair is needed.

[0003] During the use of traditional butterfly valves that are easy to maintain, the two ends of the butterfly plate extend into the clamping grooves of the upper valve stem and the lower valve stem, which can increase the contact area between the butterfly plate and the upper valve stem and the lower valve stem, and the butterfly plate is connected and fixed to the upper valve stem and the lower valve stem through anti-bending parts. When maintenance is needed, it is only necessary to remove the pin shaft and disassemble the butterfly plate and anti-bending parts, which is convenient for disassembly and assembly. The anti-bending parts can prevent the valve stem and butterfly plate from deforming and bending due to long-term erosion of the medium.

[0004] However, it does not solve the problem that when the gear group protective shell outside the butterfly valve needs to be installed, since the external shell is installed and fixed by a large number of bolts, the operator needs to install a large number of bolts during installation, which makes the installation process more cumbersome. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a butterfly valve that is easy to maintain, aiming to improve the problem that the external shell is installed and fixed by a large number of bolts, which requires operators to install a large number of bolts during installation, making the installation process more cumbersome.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a butterfly valve that is easy to maintain, including a butterfly valve body, a protective shell fixedly connected to the top of the butterfly valve body, a partition fixedly connected inside the protective shell, a cover plate is arranged on the top of the partition, a sealing assembly is arranged on the bottom of the cover plate, a mounting seat is fixedly connected inside the protective shell, a card slot is opened inside the mounting seat, a connecting pin is slidably connected inside the cover plate, the outer wall of the connecting pin is fixedly connected to a limiting plate, the inner wall of the connecting pin is fixedly connected to a limiting column 1, the outer wall of the limiting column 1 is slidably connected to a symmetrically arranged card block, the outer wall of the limiting column 1 is sleeved with a first spring, a telescopic rod is arranged between the card blocks, the outer wall of the telescopic rod is sleeved with a second spring, and the outer wall of the card block is embedded in the card slot.

[0007] As a further description of the above technical solution:

[0008] The sealing assembly includes a sealing ring 1 and a sealing ring 2. The top of the sealing ring 1 is fixedly connected to the bottom of the cover plate, and the bottom of the sealing ring 2 is fixedly connected to the inside of the cover plate. The bottom of the sealing ring 1 is attached to the top of the partition plate, and the top of the sealing ring 2 is attached to the bottom of the limit plate.

[0009] As a further description of the above technical solution:

[0010] Both ends of the first spring are fixedly connected between the blocks, and both ends of the telescopic rod and the second spring are fixedly connected between the blocks.

[0011] As a further description of the above technical solution:

[0012] A connecting rod is slidably connected inside the connecting pin, and one side of the connecting rod is fixedly connected to a limiting block.

[0013] As a further description of the above technical solution:

[0014] The interior of the butterfly valve body is fixedly connected with a second limiting column, and the outer wall of the second limiting column is slidably connected to the interior of the limiting block.

[0015] As a further description of the above technical solution:

[0016] A third spring is sleeved on the second outer wall of the limiting column, one end of the third spring is fixedly connected to the inside of the connecting pin, and the other end of the third spring is fixedly connected to the top of the limiting block.

[0017] As a further description of the above technical solution:

[0018] One end of the connecting rod is fixedly connected with a disassembly plate, and the other end of the connecting rod is fixedly connected with a release ring.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the release ring is slidably connected to the outer wall of the connecting pin, and the connecting rod is symmetrically arranged and slidably connected to the inside of the connecting pin.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, firstly, the effect of quick installation is achieved through the cooperation between the partition, the mounting seat, the cover plate, the sealing ring, the connecting pin, the limit plate, the limit column and the clamping block, which solves the problem that the external shell is installed and fixed by a large number of bolts, and the operator needs to install a large number of bolts during installation, which is cumbersome in the installation process, thereby improving the installation efficiency of the butterfly valve.

[0023] 2. In the utility model, the effect of quickly disassembling the protective shell is achieved through the cooperation between the limit column 2, the limit block, the release ring, the disassembly plate and the connecting rod, which solves the problem that when the traditional butterfly valve needs to inspect the internal parts, the operator needs to use other tools to disassemble a large number of bolts, which is troublesome during the disassembly process, thereby improving the disassembly efficiency of the butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional diagram of a butterfly valve that is easy to repair proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of a protective shell of a butterfly valve that is easy to repair proposed by the utility model;

[0026] Figure 3 A schematic diagram of the internal structure of a connecting pin of a butterfly valve that is easy to repair proposed by the utility model;

[0027] Figure 4 for Figure 2 A magnified schematic diagram of center A.

[0028] Legend:

[0029] 1. Butterfly valve body; 2. Protective shell; 3. Partition; 4. Mounting seat; 5. Slot; 6. Cover plate; 7. Sealing ring 1; 8. Sealing ring 2; 9. Connecting pin; 10. Limit plate; 11. Limit column 1; 12. Block; 13. First spring; 14. Telescopic rod; 15. Second spring; 16. Limit column 2; 17. Limit block; 18. Third spring; 19. Release ring; 20. Disassembly plate; 21. Connecting rod. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1 , Figure 3 and Figure 4, the utility model provides an embodiment: a butterfly valve that is easy to repair, including a butterfly valve body 1, a protective shell 2 is fixedly connected to the top of the butterfly valve body 1, a partition 3 is fixedly connected inside the protective shell 2, a cover plate 6 is arranged on the top of the partition 3, a sealing assembly is arranged at the bottom of the cover plate 6, a mounting seat 4 is fixedly connected to the inside of the protective shell 2, a card slot 5 is arranged inside the mounting seat 4, a connecting pin 9 is slidably connected inside the cover plate 6, the outer wall of the connecting pin 9 is fixedly connected to a limiting plate 10, the connecting pin 9 is fixedly connected to a limiting column 11, the outer wall of the limiting column 11 is slidably connected to a symmetrically arranged card block 12, the limiting column 1 The outer wall of 11 is sleeved with a first spring 13, a telescopic rod 14 is arranged between the blocks 12, the outer wall of the telescopic rod 14 is sleeved with a second spring 15, the outer wall of the block 12 is embedded in the card slot 5, the sealing assembly includes a sealing ring 1 7 and a sealing ring 2 8, the top of the sealing ring 1 7 is fixedly connected to the bottom of the cover plate 6, the bottom of the sealing ring 2 8 is fixedly connected to the inside of the cover plate 6, the bottom of the sealing ring 1 7 is attached to the top of the partition 3, the top of the sealing ring 2 8 is attached to the bottom of the limit plate 10, both ends of the first spring 13 are fixedly connected between the blocks 12, and both ends of the telescopic rod 14 and the second spring 15 are fixedly connected between the blocks 12;

[0032] Specifically, when installing the cover plate 6 on the protective shell 2, it is first necessary to place the cover plate 6 inside the protective shell 2. It is limited by the partition 3. The gap between the partition 3 and the cover plate 6 is sealed with a sealing ring 7 to ensure the dryness and cleanliness of the inside of the protective shell 2. Next, insert the connecting pin 9 into the partition 3 so that one end of it is inserted into the inside of the mounting seat 4. In this way, the connecting pin 9 can tightly connect the cover plate 6 and the protective shell 2 together. In order to make the connection more stable, a block 12 is provided inside the connecting pin 9, and the block 12 can be embedded in the slot 5. The position of the block 12 can be limited by a limiting column 11 to ensure that its position inside the connecting pin 9 is accurate. In addition, the block 12 is also supported by the tension of the first spring 13, so that it is more stable when it is embedded in the slot 5. In order to further improve the connection stability, the block 12 is also supported and limited by the telescopic rod 14 and the second spring 15. Finally, the connecting pin 9 and the cover plate 6 are fitted together through the limit plate 10 on the outer wall of the connecting pin 9, and are sealed with the outer wall of the sealing ring 2 8. This design can effectively prevent the leakage of liquid and particulate matter inside the protective shell 2, ensuring the safe operation of the equipment.

[0033] Reference Figure 2 and Figure 3, a connecting rod 21 is slidably connected inside the connecting pin 9, one side of the connecting rod 21 is fixedly connected to the limiting block 17, a limiting column 16 is fixedly connected inside the butterfly valve body 1, the outer wall of the limiting column 16 is slidably connected inside the limiting block 17, a third spring 18 is sleeved on the outer wall of the limiting column 16, one end of the third spring 18 is fixedly connected inside the connecting pin 9, and the other end of the third spring 18 is fixedly connected to the top of the limiting block 17, one end of the connecting rod 21 is fixedly connected to a disassembly plate 20, and the other end of the connecting rod 21 is fixedly connected to a release ring 19, the outer wall of the release ring 19 is slidably connected to the outer wall of the connecting pin 9, and the connecting rod 21 is symmetrically arranged and slidably connected inside the connecting pin 9;

[0034] Specifically, first, when disassembly needs to be overhauled, the connecting rod 21 can be further operated through the disassembly plate 20. The connecting rod 21 is an important transmission component, which can drive the release ring 19 through the connecting rod 21 to transfer the torque of the disassembly plate 20, so that the block 12 is retracted into the inside of the connecting pin 9, and the connecting pin 9 can be smoothly pulled out. By pulling out the connecting pin 9, the butterfly valve body 1 can be released from the fixed position, which is convenient for subsequent maintenance work. Next, driven by the connecting rod 21, the release ring 19 can retract the block 12 into the inside of the connecting pin 9. The connecting pin 9 can be pulled out for maintenance. When the disassembly plate 20 is loosened, the function of the third spring 18 is to limit the movement range of the butterfly valve body 1 and ensure its stability during use. During the maintenance process, the tension of the third spring 18 will push the limit block 17, thereby driving the release ring 19 to reset.

[0035] Working principle: When using the butterfly valve that is easy to repair, first, when installing the cover plate 6 on the protective shell 2, place the cover plate 6 inside the protective shell 2, and limit the cover plate 6 through the partition 3. The cover plate 6 and the partition 3 are sealed by the sealing ring 7. Then, insert the connecting pin 9 into the partition 3 so that one end of the connecting pin 9 is inserted into the mounting seat 4, so that the block 12 in the connecting pin 9 is embedded in the card groove 5. The block 12 is limited in the connecting pin 9 by the limiting column 11. The block 12 is tensioned by the first spring 13. The force support makes the block 12 more stable when it is embedded in the slot 5, and the block 12 is further supported and limited by the telescopic rod 14 and the second spring 15, and the connecting pin 9 and the cover plate 6 are sealed by the limiting plate 10 on the outer wall of the connecting pin 9 being attached to the outer wall of the sealing ring 8. When it is necessary to remove the cover plate 6 to inspect the butterfly valve body 1, the connecting pin 9 is pulled out by the disassembly plate 20 to drive the connecting rod 21, and the connecting rod 21 drives the release ring 19 to retract the block 12 into the connecting pin 9, and then the connecting pin 9 can be pulled out.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A butterfly valve that is easy to maintain, comprising a butterfly valve body (1), characterized in that: The top of the butterfly valve body (1) is fixedly connected to a protective shell (2), the interior of the protective shell (2) is fixedly connected to a partition (3), the top of the partition (3) is provided with a cover plate (6), the bottom of the cover plate (6) is provided with a sealing assembly, the interior of the protective shell (2) is fixedly connected to a mounting seat (4), the interior of the mounting seat (4) is provided with a card slot (5), the interior of the cover plate (6) is slidably connected to a connecting pin (9), the outer wall of the connecting pin (9) is fixedly connected to a limit plate (10), the interior of the connecting pin (9) is fixedly connected to a limit column (11), the outer wall of the limit column (11) is slidably connected to a symmetrically arranged card block (12), the outer wall of the limit column (11) is sleeved with a first spring (13), a telescopic rod (14) is provided between the card blocks (12), the outer wall of the telescopic rod (14) is sleeved with a second spring (15), and the outer wall of the card block (12) is embedded in the card slot (5).

2. A butterfly valve that is easy to maintain according to claim 1, characterized in that: The sealing assembly comprises a sealing ring 1 (7) and a sealing ring 2 (8); the top of the sealing ring 1 (7) is fixedly connected to the bottom of the cover plate (6); the bottom of the sealing ring 2 (8) is fixedly connected to the inside of the cover plate (6); the bottom of the sealing ring 1 (7) is attached to the top of the partition plate (3); and the top of the sealing ring 2 (8) is attached to the bottom of the limit plate (10).

3. The butterfly valve that is easy to maintain according to claim 1 is characterized in that: Both ends of the first spring (13) are fixedly connected between the clamping blocks (12), and both ends of the telescopic rod (14) and the second spring (15) are fixedly connected between the clamping blocks (12).

4. The butterfly valve that is easy to maintain according to claim 1 is characterized in that: A connecting rod (21) is slidably connected inside the connecting pin (9), and one side of the connecting rod (21) is fixedly connected to a limiting block (17).

5. The butterfly valve that is easy to maintain according to claim 1 is characterized in that: The butterfly valve body (1) is fixedly connected to the interior of a second limiting column (16), and the outer wall of the second limiting column (16) is slidably connected to the interior of a limiting block (17).

6. A butterfly valve that is easy to maintain according to claim 5, characterized in that: The outer wall of the second limiting column (16) is sleeved with a third spring (18), one end of the third spring (18) is fixedly connected to the inside of the connecting pin (9), and the other end of the third spring (18) is fixedly connected to the top of the limiting block (17).

7. The butterfly valve that is easy to maintain according to claim 4 is characterized in that: One end of the connecting rod (21) is fixedly connected to a disassembly plate (20), and the other end of the connecting rod (21) is fixedly connected to a release ring (19).

8. The butterfly valve that is easy to maintain according to claim 7 is characterized in that: The outer wall of the release ring (19) is slidably connected to the outer wall of the connecting pin (9), and the connecting rod (21) is symmetrically arranged and slidably connected inside the connecting pin (9).

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