A butterfly valve disc plate mechanism

Abstract

The utility model discloses a butterfly valve disc plate mechanism, which relates to the field of valve technology, including a valve body, connecting flanges are arranged at both ends of the valve body, a mounting seat is arranged in the middle of the top of the valve body, a valve core assembly is arranged in the middle of the mounting seat, and the valve core assembly includes a driving motor, a rotating valve stem is arranged at the bottom of the driving motor, and a valve plate is arranged outside the rotating valve stem, a rubber sealing ring is arranged outside the valve plate, a buffer assembly is arranged on the side of the valve plate, and a sealing protective sleeve is arranged outside the driving motor. The utility model drives the rotating valve stem and the valve plate to rotate through the driving motor, so that there is no need to manually rotate the rotating valve stem, and the valve body can be opened and closed quickly. The driving motor and the rotating valve stem are protected by the threaded connecting pipe and the sealing protective sleeve, which reduces the corrosion of the rotating valve stem and the driving motor by dust and rainwater, and prolongs the service life of the rotating valve stem and the valve body.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a disc plate mechanism of a 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] The butterfly plates of common butterfly valves are all round, and most of the rotation is controlled by rotating the valve stem to drive the valve plate to rotate. However, the valve stem is prone to rust after long-term use. If it rusts and dies during rotation, it will affect the rotation of the valve stem. After long-term use, the valve plate is prone to damage under the action of the internal pressure of the valve body, which will affect the sealing effect of the valve plate and the use of the valve. Utility Model Content

[0004] The main purpose of the utility model is to provide a butterfly valve disc plate mechanism, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A butterfly valve disc mechanism comprises a valve body, connecting flanges are arranged at both ends of the valve body, a mounting seat is arranged in the middle of the top of the valve body, and a valve core assembly is arranged in the middle of the mounting seat;

[0007] The valve core assembly includes a driving motor, a rotating valve stem is arranged at the bottom of the driving motor, a valve plate is arranged outside the rotating valve stem, a rubber sealing ring is arranged outside the valve plate, a buffer assembly is arranged on the side of the valve plate, and a sealing protective sleeve is arranged outside the driving motor;

[0008] The buffer assembly includes a mounting plate, a buffer spring is arranged on the side of the mounting plate, a buffer sleeve is arranged at one end of the buffer spring, a T-shaped mounting groove is arranged on the inner wall of the buffer sleeve, and a limiting slide rail is arranged inside the T-shaped mounting groove.

[0009] Preferably, the bottom of the driving motor is connected to the top of the mounting seat by bolts, the output end of the driving motor is transmission-connected to the rotating valve stem, and the top end of the rotating valve stem is rotationally connected to the middle of the mounting seat, and the bottom end of the rotating valve stem passes through the mounting seat and the valve body and is connected to the bottom inner wall of the valve body.

[0010] Preferably, the rotary valve stem is clamped together with the valve plate, the valve plate is fixedly connected to the rubber sealing ring, and the outer wall of the rubber sealing ring fits the interior of the valve body, and the rotary valve stem passes through the rubber sealing ring and the valve plate and is connected to the interior of the valve body.

[0011] Preferably, a threaded connecting tube is fixedly connected to the top of the mounting seat, and the threaded connecting tube sleeve is arranged on the outside of the driving motor, a threaded groove is arranged on the outer wall of the threaded connecting tube, the threaded connecting tube is inserted in the middle of the sealing protective sleeve, and the sealing protective sleeve is connected to the threaded connecting tube through threads, and a protective groove is opened on the outer wall of the sealing protective sleeve.

[0012] Preferably, the side of the mounting plate is connected to the side of the valve plate by bolts, there are two mounting plates, which are symmetrically distributed on both sides of the valve plate, a groove is provided on the side of the mounting plate away from the valve plate, and a buffer spring is fixedly connected to the inside of the groove, and there are multiple buffer springs, which are evenly distributed inside the groove.

[0013] Preferably, one end of the buffer spring away from the groove is fixedly connected to the buffer sleeve, and the buffer sleeve is arranged on the outside of the mounting plate, the outer wall of the mounting plate is fixedly connected to the limiting slide rail, and there are four limiting slide rails, which are evenly distributed on the outer wall of the mounting plate, the limiting slide rail is slidably connected to the inside of the T-shaped mounting groove, and the T-shaped mounting groove is opened on the inner wall of the buffer sleeve, and the T-shaped mounting groove and the limiting slide rail are arranged correspondingly.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The drive motor is used to drive the rotary valve stem and the valve plate to rotate, so there is no need to manually rotate the rotary valve stem, and the valve body can be quickly opened and closed. The threaded connecting pipe and the sealing protective sleeve are used to protect the drive motor and the rotary valve stem, reduce the corrosion of the rotary valve stem and the drive motor by dust and rain, and extend the service life of the rotary valve stem and the valve body;

[0016] 2. The buffer assembly is provided to buffer the pressure and impact force on the valve plate. When the mounting plate, buffer spring and buffer sleeve are provided, the buffer spring contracts to buffer the impact force, thereby alleviating the pressure on the valve plate and extending the service life of the valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model device;

[0018] Figure 2 It is a schematic diagram of the structure inside the device of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the valve core assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the buffer component of the utility model.

[0021] In the figure: 1. valve body; 2. connecting flange; 3. mounting seat; 4. valve core assembly; 5. driving motor; 6. rotating valve stem; 7. threaded connecting pipe; 8. sealing protective sleeve; 9. protective groove; 10. valve plate; 11. rubber sealing ring; 12. buffer assembly; 13. mounting plate; 14. groove; 15. buffer spring; 16. buffer sleeve; 17. T-shaped mounting groove; 18. limit slide rail. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a butterfly valve disc plate mechanism comprises a valve body 1, connecting flanges 2 are arranged at both ends of the valve body 1, a mounting seat 3 is arranged in the middle of the top of the valve body 1, and a valve core assembly 4 is arranged in the middle of the mounting seat 3;

[0024] See also Figure 1 , Figure 2 , Figure 3 As shown, the valve core assembly 4 includes a driving motor 5, a rotating valve stem 6 is arranged at the bottom of the driving motor 5, and a valve plate 10 is arranged outside the rotating valve stem 6, a rubber sealing ring 11 is arranged outside the valve plate 10, a buffer assembly 12 is arranged on the side of the valve plate 10, a sealing protective sleeve 8 is arranged outside the driving motor 5, the bottom of the driving motor 5 is connected to the top of the mounting seat 3 by bolts, the output end of the driving motor 5 is transmission-connected to the rotating valve stem 6, and the top end of the rotating valve stem 6 is rotationally connected to the middle of the mounting seat 3, the bottom end of the rotating valve stem 6 passes through the mounting seat 3 and is connected to the bottom inner wall of the valve body 1, the rotating valve stem 6 is clamped together with the valve plate 10, the valve plate 10 is fixedly connected to the rubber sealing ring 11, and the outer wall of the rubber sealing ring 11 fits with the interior of the valve body 1, the rotating valve stem 6 passes through the rubber The sealing ring 11 and the valve plate 10 are connected to the inside of the valve body 1, the top of the mounting seat 3 is fixedly connected with a threaded connecting pipe 7, and the threaded connecting pipe 7 is sleeved on the outside of the driving motor 5, and a threaded groove is arranged on the outer wall of the threaded connecting pipe 7, and the threaded connecting pipe 7 is inserted in the middle of the sealing protective sleeve 8, and the sealing protective sleeve 8 is connected to the threaded connecting pipe 7 through a thread, and a protective groove 9 is arranged on the outer wall of the sealing protective sleeve 8, and the rotary valve stem 6 and the valve plate 10 are driven to rotate by the set driving motor 5, so that there is no need to manually rotate the rotary valve stem 6, and the valve body 1 can be opened and closed quickly, and the driving motor 5 and the rotary valve stem 6 can be protected by the set threaded connecting pipe 7 and the sealing protective sleeve 8, so as to reduce the corrosion of the rotary valve stem 6 and the driving motor 5 by dust and rainwater, and extend the service life of the rotary valve stem 6 and the valve body 1;

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the buffer assembly 12 includes a mounting plate 13, a buffer spring 15 is provided on the side of the mounting plate 13, and a buffer sleeve 16 is provided at one end of the buffer spring 15, a T-shaped mounting groove 17 is provided on the inner wall of the buffer sleeve 16, and a limited position slide rail 18 is provided inside the T-shaped mounting groove 17, the side of the mounting plate 13 is connected to the side of the valve plate 10 by bolts, there are two mounting plates 13, which are symmetrically distributed on both sides of the valve plate 10, a groove 14 is provided on the side of the mounting plate 13 away from the valve plate 10, and the buffer spring 15 is fixedly connected to the inside of the groove 14, there are multiple buffer springs 15, which are evenly distributed inside the groove 14, and the end of the buffer spring 15 away from the groove 14 is fixedly connected to the buffer sleeve 16 , and the buffer sleeve 16 is sleeved on the outside of the mounting plate 13, the outer wall of the mounting plate 13 is fixedly connected to the limiting slide rail 18, and there are four limiting slide rails 18, which are evenly distributed on the outer wall of the mounting plate 13, and the limiting slide rail 18 is slidably connected to the inside of the T-shaped mounting groove 17, and the T-shaped mounting groove 17 is opened on the inner wall of the buffer sleeve 16, and the T-shaped mounting groove 17 and the limiting slide rail 18 are correspondingly arranged, and the pressure and impact force exerted on the valve plate 10 are buffered by the buffer assembly 12, and the mounting plate 13, the buffer spring 15 and the buffer sleeve 16 are provided. When the impact force is exerted, the buffer spring 15 contracts to achieve buffering of the impact force, thereby reducing the pressure exerted on the valve plate 10 and extending the service life of the valve plate 10.

[0026] It should be noted that the utility model is a butterfly valve disc plate mechanism. When in use, the sealing protection sleeve 8 is sleeved on the outside of the threaded connection pipe 7, and is rotated and fixed by the thread set on the outer wall of the threaded connection pipe 7. A protective groove 9 is set on the outer wall of the sealing protection sleeve 8 to facilitate the rotation of the sealing protection sleeve 8, improve the friction of the sealing protection sleeve 8, and prevent sliding during the rotation process, which affects the rotation efficiency. The driving motor 5 is set to drive the rotary valve stem 6 to rotate, and the rotary valve stem 6 is clamped together with the valve plate 10, so that the rotary valve stem 6 drives the valve plate 10 to rotate, thereby realizing the opening and closing of the valve body 1, and the outer wall of the valve plate 10 is installed with a protective groove 9. The rubber sealing ring 11 improves the sealing effect of the valve body 1 and realizes the buffering of the valve plate 10. Buffer components 12 are installed on both sides of the valve plate 10. When an impact occurs, the impact force realizes the squeezing of the buffer sleeve 16. The buffer sleeve 16 and the mounting plate 13 are connected by a buffer spring 15. The buffer spring 15 is contracted to realize the buffering of the impact force, reduce the impact force of the installation on the valve plate 10, and extend the service life of the valve plate 10. The buffer sleeve 16 and the mounting plate 13 are slidably connected to the inside of the T-shaped mounting groove 17 by the limiting slide rail 18, so as to increase the stability of the buffer sleeve 16 and prevent the buffer sleeve 16 from rotating and affecting the use.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A butterfly valve disc mechanism, comprising a valve body (1), characterized in that: Connecting flanges (2) are provided at both ends of the valve body (1), a mounting seat (3) is provided in the middle of the top of the valve body (1), and a valve core assembly (4) is provided in the middle of the mounting seat (3); The valve core assembly (4) comprises a driving motor (5), a rotating valve stem (6) is arranged at the bottom of the driving motor (5), a valve plate (10) is arranged outside the rotating valve stem (6), a rubber sealing ring (11) is arranged outside the valve plate (10), a buffer assembly (12) is arranged on the side of the valve plate (10), and a sealing protective sleeve (8) is arranged outside the driving motor (5); The buffer assembly (12) comprises a mounting plate (13), a buffer spring (15) is arranged on the side of the mounting plate (13), a buffer sleeve (16) is arranged at one end of the buffer spring (15), a T-shaped mounting groove (17) is arranged on the inner wall of the buffer sleeve (16), and a limiting slide rail (18) is arranged inside the T-shaped mounting groove (17).

2. A butterfly valve disc plate mechanism according to claim 1, characterized in that: The bottom of the driving motor (5) is connected to the top of the mounting seat (3) by bolts, the output end of the driving motor (5) is transmission-connected to the rotary valve stem (6), and the top end of the rotary valve stem (6) is rotationally connected to the middle of the mounting seat (3), and the bottom end of the rotary valve stem (6) passes through the mounting seat (3) and the valve body (1) and is connected to the bottom inner wall of the valve body (1).

3. A butterfly valve disc mechanism according to claim 2, characterized in that: The rotary valve stem (6) is clamped together with the valve plate (10), the valve plate (10) is fixedly connected to the rubber sealing ring (11), and the outer wall of the rubber sealing ring (11) fits the inside of the valve body (1), and the rotary valve stem (6) passes through the rubber sealing ring (11) and the valve plate (10) and is connected to the inside of the valve body (1).

4. A butterfly valve disc plate mechanism according to claim 1, characterized in that: A threaded connection pipe (7) is fixedly connected to the top of the mounting seat (3), and the threaded connection pipe (7) is sleeved on the outside of the driving motor (5). A threaded groove is provided on the outer wall of the threaded connection pipe (7). The threaded connection pipe (7) is inserted in the middle of the sealing protection sleeve (8), and the sealing protection sleeve (8) is connected to the threaded connection pipe (7) through a thread. A protective groove (9) is provided on the outer wall of the sealing protection sleeve (8).

5. The butterfly valve disc mechanism according to claim 1, characterized in that: The side of the mounting plate (13) is connected to the side of the valve plate (10) by bolts. There are two mounting plates (13), which are symmetrically distributed on both sides of the valve plate (10). A groove (14) is provided on the side of the mounting plate (13) away from the valve plate (10), and a buffer spring (15) is fixedly connected inside the groove (14). There are multiple buffer springs (15), which are evenly distributed inside the groove (14).

6. A butterfly valve disc mechanism according to claim 5, characterized in that: One end of the buffer spring (15) away from the groove (14) is fixedly connected to the buffer sleeve (16), and the buffer sleeve (16) is sleeved on the outside of the mounting plate (13). The outer wall of the mounting plate (13) is fixedly connected to the limiting slide rail (18), and there are four limiting slide rails (18), which are evenly distributed on the outer wall of the mounting plate (13). The limiting slide rail (18) is slidably connected to the inside of the T-shaped mounting groove (17), and the T-shaped mounting groove (17) is opened on the inner wall of the buffer sleeve (16), and the T-shaped mounting groove (17) and the limiting slide rail (18) are correspondingly arranged.

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