Double-eccentric butterfly valve for preventing particle jamming

Abstract

The utility model relates to the technical field of double-eccentric butterfly valves, and discloses a double-eccentric butterfly valve for preventing particles from being stuck, which comprises a valve body, a first clamping ring is arranged on the outer wall of the valve body, a first mounting plate is fixedly connected to the top of the first clamping ring, a dismounting column is arranged in the middle of the first mounting plate, a second clamping ring is arranged on the outer wall of the valve body, and a second mounting plate is fixedly connected to the top of the second clamping ring. A second mounting plate is fixedly connected to the top of the second clamping ring, a dismounting ring is fixedly connected to the interior of the second mounting plate, a clamping plate is fixedly connected to the outer wall of the mounting column, a clamping groove is formed in the outer wall of the dismounting column, and a rotating mechanism is arranged at the top of the valve body. According to the butterfly plate, the protruding part of the clamping plate slides in the clamping groove by rotating the dismounting column, then the protruding part of the clamping plate slides out of the clamping groove, the connecting column can be conveniently and rapidly taken out, the butterfly plate is dismounted by rapidly taking out the connecting column, and then the butterfly plate is maintained and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of double eccentric butterfly valves, in particular to a double eccentric butterfly valve for preventing particles from getting stuck. Background Art

[0002] Double eccentric butterfly valve is also called high-performance butterfly valve. It is mainly used for drainage in water plants, power plants, steel mills, chemical industry, water source projects, environmental facilities construction and other systems. It is especially suitable for use as a regulating and intercepting device on water pipelines. Its structural feature is that the valve stem axis deviates from the center of both the butterfly plate and the body. The double eccentric effect enables the butterfly plate to quickly separate from the valve seat after the valve is opened, greatly eliminating unnecessary excessive extrusion and scraping between the butterfly plate and the valve seat, reducing the opening resistance, reducing wear and increasing the life of the valve seat.

[0003] After searching, the publication number CN213871150U discloses a double eccentric butterfly valve for preventing particles from getting stuck, including a valve body, a connecting hole is provided in the valve body, a valve stem that penetrates the valve body and extends into the connecting hole is rotatably connected to the top of the valve body, a valve plate is fixedly connected to the right side of the valve stem, a sealing sleeve is fixedly installed on the left side of the valve stem, a mounting hole is provided on the front side of the sealing sleeve, a power generation impeller is fixedly installed in the mounting hole, a temperature measuring probe is fixedly installed on the front side of the sealing sleeve, and an ultrasonic transducer is fixedly installed on the bottom of the valve body. The double eccentric butterfly valve for preventing particles from getting stuck solves the problem that particles are easily accumulated at the bottom of the valve stem of the current double eccentric butterfly valve when in use. When the number of particles reaches a certain level, the switching torque of the entire valve becomes larger, and even the valve cannot be rotated and gets stuck. In addition, when the working environment temperature of the valve body is too high, the valve plate will expand and get stuck.

[0004] Although the above application solves the problem that particles are easily accumulated at the bottom of the valve stem of the current double eccentric butterfly valve when in use, the butterfly plate cannot be disassembled and replaced. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a double eccentric butterfly valve for preventing particles from getting stuck, aiming to improve the problem that the butterfly plate cannot be disassembled and replaced.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a double-eccentric butterfly valve for preventing particles from getting stuck, comprising a valve body, the outer wall of the valve body is provided with a first clamping ring, the top of the first clamping ring is fixedly connected to a first mounting plate, the middle part of the first mounting plate is provided with a disassembly column, the outer wall of the valve body is provided with a second clamping ring, the top of the second clamping ring is fixedly connected to the second mounting plate, the interior of the second mounting plate is fixedly connected with a disassembly ring, the inner wall of the disassembly ring is provided with a disassembly groove, the inner wall of the disassembly ring is provided with a mounting column, both ends of the mounting column are fixedly connected to the inner wall of the disassembly groove, the outer wall of the mounting column is fixedly connected with a clamping plate, the outer wall of the disassembly column is provided with a clamping groove, the clamping groove matches the through groove, a connecting column is provided on one side of the first mounting plate, the outer wall of the connecting column is fixedly connected with a butterfly plate, and a rotating mechanism is provided on the top of the valve body.

[0007] Preferably, the rotating mechanism includes a rotating disk, the outer wall of which is arranged above the valve body, the middle part of the rotating disk is connected to a worm through an installation assembly, the teeth of the worm are meshed with a worm wheel, and the worm wheel is rotatably connected to the top of the installation assembly.

[0008] Preferably, the mounting assembly includes a rotating rod, one end of which is fixedly connected to the middle of the rotating disk, the other end of which is fixedly connected to one end of a worm gear, one end of the worm gear is rotatably connected to a mounting box, and an outer wall of the rotating rod is rotatably connected to one side of the mounting box.

[0009] Preferably, the bottom of the mounting box is rotatably connected to a collar, the bottom of the worm gear is fixed to the top of the collar, the collar is detachably connected to the outer wall of the connecting column, and the bottom of the collar is located at the top of the first mounting plate and the second mounting plate.

[0010] Preferably, a hinge is provided at the bottom of the first collar, and the other end of the hinge is provided at the bottom of the second collar.

[0011] Preferably, a sealing ring is provided on the outer wall of the valve body.

[0012] Preferably, a through groove is provided in the middle of the worm wheel.

[0013] Preferably, the inner wall of the through groove matches the outer wall of the connecting column.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the protruding part of the card plate is slid in the card slot by rotating the disassembly column, and then the protruding part of the card plate is slid out of the card slot, and then the disassembly column is pulled out, so that the first clamping ring and the second clamping ring are rotated under the cooperation of the hinge, and the first clamping ring and the second clamping ring are in an open state, so that the connecting column can be quickly taken out, and the butterfly plate can be disassembled by quickly taking out the connecting column, and then the butterfly plate can be repaired and replaced.

[0016] 2. In the utility model, the rotation of the rotating rod is achieved by rotating the rotating disk, and the rotation of the rotating rod is achieved by rotating the worm gear and then the synchronous rotation of the sleeve ring is achieved. The connecting column runs through the sleeve ring and the worm gear. When the worm gear and the sleeve ring rotate, the connecting column rotates, which drives the rotation of the butterfly plate. The rotation of the butterfly plate prevents particles from being blocked in the valve body and realizes the regulation of the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a double eccentric butterfly valve for preventing particles from getting stuck, as proposed by the utility model;

[0018] Figure 2 A schematic diagram of a butterfly plate of a double eccentric butterfly valve for preventing particles from getting stuck proposed by the utility model;

[0019] Figure 3 A schematic diagram of a clamping plate of a double eccentric butterfly valve for preventing particles from getting stuck, proposed by the utility model;

[0020] Figure 4 A schematic diagram of the hinge of a double eccentric butterfly valve for preventing particles from getting stuck, proposed by the utility model;

[0021] Figure 5 The utility model is a schematic diagram of the worm of the double eccentric butterfly valve for preventing particles from getting stuck.

[0022] Legend:

[0023] 1. Valve body; 2. Rotating plate; 3. Mounting box; 4. Sealing ring; 5. Disassembly ring; 6. Disassembly groove; 7. Mounting column; 8. Clamping plate; 9. Clamping groove; 10. Disassembly column; 11. First mounting plate; 12. First clamping ring; 13. Butterfly plate; 14. Connecting column; 15. Second mounting plate; 16. Second clamping ring; 17. Worm; 18. Through groove; 19. Worm wheel; 20. Rotating rod; 21. Hinge; 22. Ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings of the specification 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 of 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] Reference Figure 1-Figure 3 The utility model provides an embodiment: a double eccentric butterfly valve for preventing particles from getting stuck, comprising a valve body 1, a first clamp ring 12 is arranged on the outer wall of the valve body 1, a first mounting plate 11 is fixedly connected to the top of the first clamp ring 12, a disassembly column 10 is arranged in the middle of the first mounting plate 11, a second clamp ring 16 is arranged on the outer wall of the valve body 1, a second mounting plate 15 is fixedly connected to the top of the second clamp ring 16, a disassembly ring 5 is fixedly connected to the inside of the second mounting plate 15, a disassembly groove 6 is arranged on the inner wall of the disassembly ring 5, and a disassembly column 10 is arranged in the middle of the first mounting plate 11. The inner wall of the unloading ring 5 is provided with a mounting column 7, both ends of the mounting column 7 are fixedly connected to the inner wall of the disassembly groove 6, the outer wall of the mounting column 7 is fixedly connected to a clamping plate 8, the outer wall of the disassembly column 10 is provided with a clamping groove 9, the clamping groove 9 matches the through groove 18, a connecting column 14 is provided on one side of the first mounting plate 11, the outer wall of the connecting column 14 is fixedly connected to a butterfly plate 13, a hinge 21 is provided at the bottom of the first clamp ring 12, the other end of the hinge 21 is provided at the bottom of the second clamp ring 16, and a rotating mechanism is provided at the top of the valve body 1.

[0026] Specifically, the bottom of the first clamp ring 12 and the second clamp ring 16 are connected by a hinge 21, one end of the connecting column 14 is located in the bottom groove of the first clamp ring 12 and the second clamp ring 16, and the raised part of the clamp plate 8 is located in the clamping groove 9. When the disassembly column 10 is rotated, the raised part of the clamp plate 8 slides in the clamping groove 9, thereby realizing that the raised part of the clamp plate 8 slides out of the clamping groove 9, and then the disassembly column 10 is pulled out, so that the first clamp ring 12 and the second clamp ring 16 rotate with the cooperation of the hinge 21, and the first clamp ring 12 and the second clamp ring 16 are in an open state, thereby facilitating the quick removal of the connecting column 14. By quickly removing the connecting column 14, the butterfly plate 13 is disassembled, and then the butterfly plate 13 is repaired and replaced.

[0027] Reference Figure 1 , Figure 4 and Figure 5 The rotating mechanism includes a rotating disk 2, the outer wall of the rotating disk 2 is arranged above the valve body 1, the middle part of the rotating disk 2 is connected with a worm 17 through a mounting assembly, the teeth of the worm 17 are meshed with a worm wheel 19, and the worm wheel 19 is rotatably connected to the top of the mounting assembly.

[0028] Specifically, the worm 17 is rotated by rotating the rotating disk 2 in cooperation with the installation assembly, the through slot 18 is rotated by rotating the worm 17, the connecting column 14 is rotated by rotating the through slot 18 in cooperation with the installation assembly, and then the butterfly plate 13 is rotated. The rotation of the butterfly plate 13 prevents particles from being blocked in the valve body 1 and realizes the regulation of the flow rate.

[0029] The mounting assembly includes a rotating rod 20, one end of which is fixedly connected to the middle of the rotating disk 2, and the other end of the rotating rod 20 is fixedly connected to one end of the worm 17. One end of the worm 17 is rotatably connected to a mounting box 3, and the outer wall of the rotating rod 20 is rotatably connected to one side of the mounting box 3. The bottom of the mounting box 3 is rotatably connected to a collar 22, and the bottom of the worm wheel 19 is fixed to the top of the collar 22. The collar 22 is detachably connected to the outer wall of the connecting column 14. The bottom of the collar 22 is located at the top of the first mounting plate 11 and the second mounting plate 15. A through groove 18 is opened in the middle of the worm wheel 19, and the inner wall of the through groove 18 matches the outer wall of the connecting column 14.

[0030] Specifically, the rotating rod 20 is driven to rotate by the rotation of the rotating disk 2, and the worm gear 19 is driven to rotate by the rotation of the rotating rod 20, thereby realizing the synchronous rotation of the collar 22. The connecting column 14 passes through the collar 22 and the worm gear 19. When the worm gear 19 and the collar 22 rotate, the connecting column 14 is rotated, thereby driving the rotation of the butterfly plate 13. The connecting column 14 and the collar 22 are detachable to prevent affecting the opening of the first clamping ring 12 and the second clamping ring 16, so as to avoid affecting the disassembly of the butterfly plate 13. The second mounting plate 15 and the first mounting plate 11 provide support for the mounting box 3.

[0031] Reference Figure 1 A sealing ring 4 is arranged on the outer wall of the valve body 1 .

[0032] Specifically, the sealing effect of the valve body 1 between the first clamping ring 12 and the second clamping ring 16 is enhanced by the sealing ring 4 .

[0033] Working principle: When using the device, first rotate the rotating disk 2. When the rotating disk 2 rotates, it drives the rotating rod 20 to rotate. The rotation of the rotating rod 20 drives the worm wheel 19 to rotate, thereby realizing the synchronous rotation of the collar 22. The connecting column 14 passes through the collar 22 and the worm wheel 19. When the worm wheel 19 and the collar 22 rotate, the connecting column 14 rotates, thereby driving the butterfly plate 13 to rotate. The rotation of the butterfly plate 13 prevents particles from clogging in the valve body 1, and realizes the regulation of the flow rate. When the butterfly plate 13 needs to be replaced and disassembled, the collar 22 is removed from the outer wall of the connecting column 14 and then the installation box 3 is removed and taken out, and then the disassembly column 10 and the card plate 8 are rotated. The raised part of the card plate 8 slides in the card slot 9, thereby realizing that the raised part of the card plate 8 slides out of the card slot 9, and then the disassembly column 10 is pulled out, so that the first clamping ring 12 and the second clamping ring 16 rotate with the cooperation of the hinge 21, and the first clamping ring 12 and the second clamping ring 16 are in an open state, which facilitates the quick removal of the connecting column 14, and the butterfly plate 13 is replaced and the connecting column 14 is put in, and then the first clamping ring 12 and the second clamping ring 16 are closed by the hinge 21, and the disassembly column 10 is reinserted, and the disassembly column 10 is rotated to make the card plate 8 located in the card slot 9 to realize the installation of the connecting column 14, and then the ring 22 is inserted into the top of the connecting column 14 for connection, and the installation of the butterfly plate 13 is completed.

[0034] 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 double eccentric butterfly valve for preventing particle jamming, comprising a valve body (1), characterized in that: The outer wall of the valve body (1) is provided with a first clamping ring (12), the top of the first clamping ring (12) is fixedly connected to a first mounting plate (11), a disassembly column (10) is provided in the middle of the first mounting plate (11), the outer wall of the valve body (1) is provided with a second clamping ring (16), the top of the second clamping ring (16) is fixedly connected to a second mounting plate (15), the interior of the second mounting plate (15) is fixedly connected to a disassembly ring (5), the inner wall of the disassembly ring (5) is provided with a disassembly groove (6), and the The inner wall of the disassembly ring (5) is provided with a mounting column (7), the two ends of the mounting column (7) are fixedly connected to the inner wall of the disassembly groove (6), the outer wall of the mounting column (7) is fixedly connected to a clamping plate (8), the outer wall of the disassembly column (10) is provided with a clamping groove (9), the clamping groove (9) matches the through groove (18), a connecting column (14) is provided on one side of the first mounting plate (11), the outer wall of the connecting column (14) is fixedly connected to a butterfly plate (13), and a rotating mechanism is provided on the top of the valve body (1).

2. The double eccentric butterfly valve for preventing particle jamming according to claim 1, characterized in that: The rotating mechanism comprises a rotating disk (2), the outer wall of the rotating disk (2) being arranged above the valve body (1), the middle part of the rotating disk (2) being connected to a worm (17) via a mounting assembly, the teeth of the worm (17) being meshingly connected to a worm wheel (19), and the worm wheel (19) being rotatably connected to the top of the mounting assembly.

3. The double eccentric butterfly valve for preventing particle jamming according to claim 2, characterized in that: The mounting assembly comprises a rotating rod (20), one end of the rotating rod (20) being fixedly connected to the middle of the rotating disk (2), the other end of the rotating rod (20) being fixedly connected to one end of a worm (17), one end of the worm (17) being rotatably connected to a mounting box (3), and an outer wall of the rotating rod (20) being rotatably connected to one side of the mounting box (3).

4. The double eccentric butterfly valve for preventing particle jamming according to claim 3, characterized in that: The bottom of the installation box (3) is rotatably connected to a collar (22), the bottom of the worm gear (19) is fixed to the top of the collar (22), the collar (22) is detachably connected to the outer wall of the connecting column (14), and the bottom of the collar (22) is located on the top of the first installation plate (11) and the second installation plate (15).

5. The double eccentric butterfly valve for preventing particle jamming according to claim 1, characterized in that: A hinge (21) is arranged at the bottom of the first clamping ring (12), and the other end of the hinge (21) is arranged at the bottom of the second clamping ring (16).

6. The double eccentric butterfly valve for preventing particle jamming according to claim 1, characterized in that: The outer wall of the valve body (1) is provided with a sealing ring (4).

7. The double eccentric butterfly valve for preventing particle jamming according to claim 4, characterized in that: A through groove (18) is provided in the middle of the worm wheel (19).

8. The double eccentric butterfly valve for preventing particle jamming according to claim 7, characterized in that: The inner wall of the through groove (18) matches the outer wall of the connecting column (14).

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