Pressure regulating butterfly valve with high performance and low resistance

Abstract

The present application relates to butterfly valve technical field, specifically speaking is the pressure regulating butterfly valve with high performance low resistance, including electric installation, support, shaft sleeve, valve body, butterfly plate, valve rod and split clasp, the support carries out the bearing support of electric installation, electric installation can drive the valve rod to rotate, and the valve rod is fixedly connected with butterfly plate, the lower end of shaft sleeve is fixedly connected with valve body, the inside of valve body is equipped with shaft sleeve, valve body is set up with valve rod sleeve through shaft sleeve, the bottom of valve rod is equipped with split clasp, and the lower end of split clasp is equipped with gasket, the bottom of valve body is fixedly connected with rear cover, the support between valve body is equipped with gasket, and gasket is used for sealing treatment work, the upper end of butterfly plate is equipped with sealing ring and pressure ring, and butterfly plate is sealedly connected through sealing ring and pressure ring. The combination setting of structure realizes bidirectional sealing treatment work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of butterfly valves, in particular to a pressure regulating butterfly valve with high performance and low resistance. BACKGROUND

[0002] The butterfly valve is also called a flap valve, which is a simple structure regulating valve and can be used for on-off control of low-pressure pipeline medium. The butterfly valve refers to a valve in which a closing element is a disc that rotates around a valve shaft to achieve opening and closing.

[0003] The valve can be used to control the flow of air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media, etc. In the pipeline, it mainly plays a role in cutting off and throttling. The butterfly valve has a disc-shaped butterfly plate as an opening and closing element, which rotates around its own axis in the valve body to achieve the purpose of opening, closing or adjusting.

[0004] As the closest prior art, Chinese Patent Publication No. CN218000429U discloses a pressure regulating butterfly valve with high performance and low resistance, which relates to the technical field of valves, and specifically to a pressure regulating butterfly valve with high performance and low resistance, comprising a valve body, a valve plate is arranged inside the valve body, a shaft sleeve is fixedly connected to the middle part of the valve plate, a first sealing element and a second sealing element are fixedly connected inside the valve body, a compression spring is fixedly installed inside the first sealing element, and a sealing strip is movably sleeved inside the first sealing element. However, during use, it is not conducive to auxiliary locking treatment.

[0005] At present, the pressure regulating butterfly valve is mostly processed by one-way communication during use, and cannot be bidirectionally regulated and controlled. Meanwhile, during actual operation, it cannot be assisted to lock, so as to improve the tightness of the connection. Therefore, an equipment needs to be improved for the above problems. SUMMARY

[0006] In view of the problems in the prior art, the present application provides a pressure regulating butterfly valve with high performance and low resistance.

[0007] The technical scheme adopted by the present application to solve the technical problems is: a pressure regulating butterfly valve with high performance and low resistance, comprising an electric device, a support, a shaft sleeve, a valve body, a butterfly plate, a valve rod and a split clasp;

[0008] The support bears and supports the electric device, the electric device can drive the valve rod to rotate, and the valve rod is fixedly connected with the butterfly plate, the lower end of the shaft sleeve is fixedly connected with the valve body, the inside of the valve body is provided with the shaft sleeve, and the valve body is sleeved with the valve rod through the shaft sleeve;

[0009] The bottom of the valve rod is provided with a split clasp, and the lower end of the split clasp is provided with a gasket, and the bottom of the valve body is fixedly connected with a rear cover.

[0010] The gasket is arranged between the bracket and the valve body, and is used for sealing treatment;

[0011] The upper end of the butterfly plate is provided with a sealing ring and a pressing ring, and the butterfly plate is connected and sealed by the sealing ring and the pressing ring;

[0012] The right side of the valve body is provided with an O-shaped sealing ring, an internal hexagonal bolt, a fixed plate, a spring and a movable valve seat;

[0013] The valve body is connected and combined with the movable valve seat through the O-shaped sealing ring, and the side end of the movable valve seat is connected and limited by the internal hexagonal bolt, the fixed plate and the spring, so as to ensure the position limitation of the movable valve seat;

[0014] The butterfly plate comprises a butt joint shaft, a sealing groove and a combined plate frame;

[0015] The combined plate frame is provided with a sealing groove on the top, and the butt joint shaft is fixedly connected to the top of the combined plate frame, the combined plate frame is installed in butt joint with the valve rod through the butt joint shaft, and the butt joint shaft is provided in a center-through structure, and the rod body in the center of the butt joint shaft is the valve rod;

[0016] The rear cover seals the bottom of the valve body through the split clasp and the gasket;

[0017] The spring is fixedly connected to the valve body, and the valve body is installed in position limitation of the movable valve seat through the spring;

[0018] The electric equipment drives the butterfly plate to rotate and adjust, so as to perform sealing control treatment and improve the rapid control performance;

[0019] The pressing ring seals the butterfly plate, and the position of the butterfly plate can be adjusted on the pressing ring;

[0020] The electric equipment, the bracket, the valve body and the rear cover form an external overall structure, and perform protection treatment on internal components.

[0021] Specifically, the bottom position of the valve body is provided with an auxiliary positioning structure, the auxiliary positioning structure is used for limiting the valve rod, and a one-side adaptive groove is formed in the valve rod, and the one-side adaptive groove is limited in cooperation with the auxiliary positioning structure.

[0022] Specifically, the auxiliary positioning structure comprises a protection frame, a sealing plate, a driven limiting component, a transmission driving component and a driving control component, the side end of the driving control component is fixedly connected with a cover frame, the upper end of the driving control component is fixedly connected with the protection frame, and the protection frame is fixedly and sealingly connected with the sealing plate.

[0023] Specifically, the inside of the protection frame is limitedly connected with the driven limiting component, and the inner end of the driving control component is limitedly connected with the transmission driving component.

[0024] Specifically, the driven limiting component includes a spring, a buffer bracket, a push piece, a first hinge bracket, a second hinge bracket, a butt joint hinge base, a limiting sleeve and a push guide rod, the upper end of the buffer bracket is slidably connected with the push piece, and the side close to the push piece of the buffer bracket is elastically connected with the spring, and the spring is arranged in position with the driven limiting component.

[0025] Specifically, the side end of the push piece is hingedly connected with the first hinge bracket, the side end of the first hinge bracket is hingedly connected with the second hinge bracket, the second hinge bracket is adaptively connected with the butt joint hinge base, and the butt joint hinge base is fixedly connected with the limiting sleeve.

[0026] Specifically, the center of the limiting sleeve is slidably connected with the push guide rod, the push guide rod is fixedly connected with the push piece, and the butt joint hinge base and the limiting sleeve are limited in the protection bracket.

[0027] Specifically, the transmission driving component includes a matching gear disc, a first inclined guide piece, a second inclined guide piece and a driving connecting rod, one side of the driving connecting rod is fixedly connected with the matching gear disc, the first inclined guide piece and the second inclined guide piece are fixedly connected on the matching gear disc, the first inclined guide piece and the second inclined guide piece are arranged in parallel, and a gap is arranged between the first inclined guide piece and the second inclined guide piece.

[0028] Specifically, the driving control component includes a bottom frame plate, a motor, a driving connecting rod, a driving gear disc, a driving wheel piece, a hinge push rod, a displacement adjusting bracket, a limiting frame bracket and a photoelectric sensor, the motor is installed on the bottom frame plate, the motor is drivingly connected with the driving gear disc and the driving wheel piece through the driving connecting rod, the side end of the driving wheel piece is hingedly connected with the hinge push rod, the lower end of the hinge push rod is hingedly connected with the displacement adjusting bracket, the displacement adjusting bracket is slidably adjusted on the limiting frame bracket, and the rear end of the limiting frame bracket is installed with the photoelectric sensor, and the photoelectric sensor senses the position of the displacement adjusting bracket.

[0029] Specifically, the driving gear disc is meshingly connected with the matching gear disc, the first inclined guide piece and the second inclined guide piece are driven to rotate through the driving gear disc, and the first inclined guide piece and the second inclined guide piece drive the push piece to reciprocatingly move for adjustment.

[0030] The beneficial effects of the present application are as follows:

[0031] Firstly, the structure of the electric equipment is arranged, the electric equipment can drive the butterfly plate to move through the valve rod, the sealing treatment in the valve body is realized, the bidirectional water isolation treatment work is carried out, the split ring and the gasket are arranged, the protection of the connection position of the valve body and the rear cover is facilitated, the phenomenon of water leakage is prevented, the sealing ring and the compression ring are arranged on the butterfly plate, the connection position is protected in cooperation with the movable valve seat, the phenomenon of water leakage is prevented, and the O-shaped sealing ring, the inner hexagonal bolt, the fixed plate and the spring are arranged to cooperate, realize the efficient butt joint work with the butterfly plate.

[0032] Secondly, the auxiliary positioning structure can be connected with the valve rod in a limiting mode to realize the limiting locking function of the valve rod, enhance the water resistance, drive the internal structure of the driving control component, drive the transmission driving component to move, and the transmission driving component can perform force transmission operation, so as to drive the driven limiting component to follow adjustment, make the driven limiting component reciprocate, facilitate the locking connection with the valve rod, determine the locking position, and achieve the purpose of accurate positioning. BRIEF DESCRIPTION OF DRAWINGS

[0033] The application will be further described below in combination with the drawings and examples.

[0034] Figure 1 It is a structural schematic diagram of the main body in the application;

[0035] Figure 2 It is an enlarged view of A of the main body in the application;

[0036] Figure 3 It is an enlarged view of B of the main body in the application;

[0037] Figure 4 It is a front perspective structural schematic diagram of the butterfly plate in the application;

[0038] Figure 5 It is a front perspective structural schematic diagram of the second embodiment of the main body in the application;

[0039] Figure 6 It is a front perspective structural schematic diagram of the auxiliary positioning structure in the application;

[0040] Figure 7 It is a disassembled view of the auxiliary positioning structure in the application;

[0041] Figure 8 It is a front perspective structural schematic diagram of the driven limiting component in the application;

[0042] Figure 9 It is a front perspective structural schematic diagram of the transmission driving component in the application;

[0043] Figure 10 It is a sectional view of the driving control component in the application.

[0044] In the diagram: 1-Electrical assembly, 2-Bracket, 3-Sleeve, 4-Valve body, 5-Butterfly plate, 6-Valve stem, 7-Split retaining ring, 8-Washer, 9-Rear cover, 10-Gasket, 11-O-ring seal, 12-Hex socket head cap screw, 13-Fixing plate, 14-Spring, 15-Moving valve seat, 16-Sealing ring, 17-Pressure ring, 18-Auxiliary positioning structure, 19-Matching shaft, 20-Sealing groove, 21-Combination plate frame, 22-Protective frame, 23-Sealing plate, 24-Driven limit component, 25-Transmission drive component, 26-Drive 27-Cover plate frame, 28-Spring, 29-Buffer frame, 30-Push plate, 31-First hinge frame, 32-Second hinge frame, 33-Matching hinge seat, 34-Limiting sleeve, 35-Push guide rod, 36-Matching gear plate, 37-First inclined guide plate, 38-Second inclined guide plate, 39-Drive connecting rod, 40-Bottom frame plate, 41-Motor, 42-Active connecting rod, 43-Active gear plate, 44-Drive wheel, 45-Hinged push rod, 46-Displacement adjustment frame, 47-Limiting frame, 48-Photoelectric sensor. Detailed Implementation

[0045] The invention will be further described below with reference to the accompanying drawings. Example 1

[0046] like Figures 1-4 As shown, the high-performance, low-resistance pressure regulating butterfly valve of the present invention includes an electric actuator 1, a bracket 2, a bushing 3, a valve body 4, a butterfly plate 5, a valve stem 6, and a split retaining ring 7.

[0047] The bracket 2 supports the electric motor 1. The electric motor 1 can drive the valve stem 6 to rotate. A butterfly plate 5 is fixedly connected to the valve stem 6. The lower end of the bushing 3 is fixedly connected to the valve body 4. The bushing 3 is provided inside the valve body 4. The valve body 4 is sleeved with the valve stem 6 through the bushing 3.

[0048] The bottom of the valve stem 6 is provided with a split retaining ring 7, and the lower end of the split retaining ring 7 is provided with a washer 8. The bottom of the valve body 4 is fixedly connected with a rear cover 9.

[0049] A gasket 10 is provided between the bracket 2 and the valve body 4, and the gasket 10 is used for sealing.

[0050] The upper end of the butterfly plate 5 is provided with a sealing ring 16 and a pressure ring 17, and the butterfly plate 5 is sealed and connected by the sealing ring 16 and the pressure ring 17.

[0051] The valve body 4 is provided with an O-ring 11, an internal hex bolt 12, a fixing plate 13, a spring 14 and a movable valve seat 15 on the right side.

[0052] The valve body 4 is connected to the movable valve seat 15 via an O-ring seal 11. The side end of the movable valve seat 15 is limited by an internal hex bolt 12, a fixing plate 13, and a spring 14 to ensure that the position of the movable valve seat 15 is limited.

[0053] The butterfly plate 5 comprises a butt joint shaft 19, a sealing groove 20 and a combined plate frame 21;

[0054] The combined plate frame 21 is provided with the sealing groove 20, and the top of the combined plate frame 21 is fixedly connected with the butt joint shaft 19. The combined plate frame 21 is installed in butt joint with the valve rod 6 through the butt joint shaft 19, and the butt joint shaft 19 is provided in a center-through structure. The rod body in the center of the butt joint shaft 19 is the valve rod 6;

[0055] The rear cover 9 is sealed at the bottom of the valve body 4 through the split clasp 7 and the gasket 8;

[0056] The spring 14 is fixedly connected with the valve body 4, and the valve body 4 is limitingly installed with the movable valve seat 15 through the spring 14;

[0057] The electric equipment 1 drives the butterfly plate 5 to rotate for adjustment through the valve rod 6, so as to perform sealing adjustment and control, thereby improving the rapid adjustment and control performance;

[0058] The compression ring 17 seals the butterfly plate 5, and the position of the butterfly plate 5 can be adjusted on the compression ring 17;

[0059] The electric equipment 1, the support 2, the valve body 4 and the rear cover 9 form an overall external structure, and protect the internal components.

[0060] In use of the embodiment, the electric equipment 1 can drive the butterfly plate 5 to move through the valve rod 6, so as to realize the sealing of the valve body 4 and perform bidirectional water isolation. The split clasp 7 and the gasket 8 are arranged to protect the connection position of the valve body 4 and the rear cover 9, so as to prevent water leakage. The sealing ring 16 and the compression ring 17 are arranged on the butterfly plate 5, and can be matched with the movable valve seat 15 to protect the connection position and prevent water leakage. The O-shaped sealing ring 11, the inner hexagonal bolt 12, the fixed plate 13 and the spring 14 are arranged to be matched with the butterfly plate 5 to realize efficient butt joint. Embodiment Two

[0061] On the basis of the embodiment 1, as shown in the figure, Figures 5-10 The bottom position of the valve body 4 is provided with an auxiliary positioning structure 18 for limiting the valve rod 6. The valve rod 6 is provided with a single-sided matching groove which is matched with the auxiliary positioning structure 18 for limiting. The auxiliary positioning structure 18 helps to limit and connect, so as to realize efficient support and help to realize the positioning locking function.

[0062] The auxiliary positioning structure 18 comprises a protective frame 22, a sealing plate 23, a driven limiting component 24, a transmission driving component 25 and a driving control component 26, the side end of the driving control component 26 is fixedly connected with a cover plate frame 27, the upper end of the driving control component 26 is fixedly connected with the protective frame 22, the protective frame 22 is fixedly and sealingly connected with the sealing plate 23, the protective frame 22, the sealing plate 23, the driving control component 26 and the cover plate frame 27 are fixed to protect the internal components, the driven limiting component 24 and the transmission driving component 25 can be connected to drive simultaneously, and the driving control component 26 is internally provided with a structure to enable the transmission driving component 25 to drive.

[0063] The driven limiting component 24 is limitingly connected in the protective frame 22, and the transmission driving component 25 is limitingly connected to the upper end of the driving control component 26.

[0064] The driven limiting component 24 comprises a spring 28, a buffer frame 29, a pushing piece 30, a first hinge frame 31, a second hinge frame 32, a butt joint hinge base 33, a limiting sleeve 34 and a pushing guide rod 35, the pushing piece 30 is slidingly connected to the upper end of the buffer frame 29, the spring 28 is elastically connected to the side of the buffer frame 29 close to the pushing piece 30, the spring 28 is limitingly arranged with the driven limiting component 24, the pushing piece 30 can drive the pushing guide rod 35 to move on the limiting sleeve 34, and the spring 28, the buffer frame 29, the first hinge frame 31 and the second hinge frame 32 help to support and connect to improve the stability of the pushing piece 30.

[0065] The side end of the pushing piece 30 is hingedly connected with the first hinge frame 31, the side end of the first hinge frame 31 is hingedly connected with the second hinge frame 32, the second hinge frame 32 is adaptively connected with the butt joint hinge base 33, and the butt joint hinge base 33 is fixedly connected with the limiting sleeve 34.

[0066] The pushing guide rod 35 is slidingly connected to the center of the limiting sleeve 34, the pushing guide rod 35 is fixedly connected with the pushing piece 30, and the butt joint hinge base 33 and the limiting sleeve 34 are limitingly arranged in the protective frame 22.

[0067] The transmission driving component 25 comprises a matching tooth disc 36, a first inclined guide piece 37, a second inclined guide piece 38 and a driving connecting rod 39, one side of the driving connecting rod 39 is fixedly connected with the matching tooth disc 36, the matching tooth disc 36 is fixedly connected with the first inclined guide piece 37 and the second inclined guide piece 38, the first inclined guide piece 37 and the second inclined guide piece 38 are arranged in parallel, a gap is arranged between the first inclined guide piece 37 and the second inclined guide piece 38, the matching tooth disc 36 can drive the driving connecting rod 39 to rotate, and simultaneously drive the first inclined guide piece 37 and the second inclined guide piece 38 to rotate and adjust.

[0068] The driving control component 26 comprises a bottom frame plate 40, a motor 41, a driving connecting rod 42, a driving gear disc 43, a driving wheel piece 44, a hinged push rod 45, a displacement adjusting frame 46, a limiting frame type frame 47 and a photoelectric sensor 48, the motor 41 is installed on the bottom frame plate 40, the motor 41 is drivingly connected with the driving gear disc 43 and the driving wheel piece 44 through the driving connecting rod 42, the side end of the driving wheel piece 44 is hingedly connected with the hinged push rod 45, the lower end of the hinged push rod 45 is hingedly connected with the displacement adjusting frame 46, the displacement adjusting frame 46 is slidingly adjusted on the limiting frame type frame 47, and the rear end of the limiting frame type frame 47 is installed with the photoelectric sensor 48, the photoelectric sensor 48 senses the position of the displacement adjusting frame 46, the motor 41 drives, the driving connecting rod 42, the driving gear disc 43 and the driving wheel piece 44 rotate, and when the driving wheel piece 44 moves, the hinged push rod 45 and the displacement adjusting frame 46 are driven to adjust, so as to change the position of the displacement adjusting frame 46 on the limiting frame type frame 47, and the photoelectric sensor 48 senses the position of the displacement adjusting frame 46.

[0069] The driving gear disc 43 is meshedly connected with the matching gear disc 36, the first inclined guide piece 37 and the second inclined guide piece 38 are driven to rotate through the driving gear disc 43, and the first inclined guide piece 37 and the second inclined guide piece 38 drive the push piece 30 to reciprocatingly move and adjust.

[0070] In the implementation of the present embodiment, the user installs the auxiliary positioning structure 18 on the inner end of the valve body 4. The auxiliary positioning structure 18 is composed of a protective frame 22, a sealing plate 23, a driven limiting component 24, a transmission driving component 25, a driving control component 26, and a cover plate frame 27. The driving control component 26 is fixed with the protective frame 22, the sealing plate 23, and the cover plate frame 27 to achieve sealing protection. When in use, the user can control the motor 41 to work. The motor 41 drives the driving link 42 to rotate. The driving link 42 can synchronously drive the driving gear 43 and the driving wheel 44 to rotate and adjust. The movement of the driving wheel 44 can drive the hinged push rod 45 and the displacement adjusting frame 46 to move, so that the displacement adjusting frame 46 is limited to slide on the limiting frame 47. The photoelectric sensor 48 can sense the position of the displacement adjusting frame 46 to facilitate the transmission of position information. Through the processor outside, data operation and processing can be performed. When the driving gear 43 rotates, the cooperating gear 36 can rotate. The driving gear 43 is a half-tooth structure. When the driving gear 43 rotates one circle, the cooperating gear 36 can only rotate half a circle. The rotation of the cooperating gear 36 can drive the driving link 39 to rotate. The rotation of the driving link 39 drives the first inclined guide piece 37 and the second inclined guide piece 38 to eccentrically rotate, so as to change the position of the push piece 30 through the first inclined guide piece 37 and the second inclined guide piece 38. When the position of the push piece 30 changes, the push guide rod 35 can be adjusted in extension and retraction with the limiting sleeve 34. The first hinge frame 31 and the second hinge frame 32 on the side end of the push piece 30 can be adjusted. The structure of the spring 28 and the buffer frame 29 facilitates buffer protection. The movement of the push guide rod 35 can contact the valve rod 6 to realize paired limiting function, which facilitates better positioning and ensures sealing performance.

[0071] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-performance, low-resistance pressure regulating butterfly valve, characterized in that: Includes electrical assembly (1), bracket (2), bushing (3), valve body (4), butterfly plate (5), valve stem (6), and split retaining ring (7); The bracket (2) supports the electrical device (1), which can drive the valve stem (6) to rotate. Furthermore, a butterfly plate (5) is fixedly connected to the valve stem (6), and a valve body (4) is fixedly connected to the lower end of the bushing (3). The valve body (4) is provided with a bushing (3) inside, and the valve body (4) is sleeved with the valve stem (6) through the bushing (3); The bottom of the valve stem (6) is provided with a split retaining ring (7), and the lower end of the split retaining ring (7) is provided with a washer (8). The bottom of the valve body (4) is fixedly connected to a rear cover (9); A gasket (10) is provided between the bracket (2) and the valve body (4), and the gasket (10) is used for sealing. The electric device (1) drives the butterfly plate (5) to rotate and adjust through the valve stem (6), thereby performing sealing control and improving the rapid control performance; The upper end of the butterfly plate (5) is provided with a sealing ring (16) and a pressure ring (17). The butterfly plate (5) is sealed and connected by the sealing ring (16) and the pressure ring (17). The pressure ring (17) seals the butterfly plate (5), and the butterfly plate (5) can be adjusted in position on the pressure ring (17). The electrical assembly (1), bracket (2), valve body (4), and rear cover (9) constitute an external overall structure to protect the internal components; The valve body (4) is provided with an auxiliary positioning structure (18) at the bottom position. The auxiliary positioning structure (18) is used to limit the valve stem (6), and a one-sided adapter groove is provided on the valve stem (6). The one-sided adapter groove cooperates with the auxiliary positioning structure (18) to limit the position. The auxiliary positioning structure (18) includes a protective frame (22), a sealing plate (23), a driven limiting component (24), a transmission drive component (25), and a drive control component (26). A cover plate frame (27) is fixedly connected to the side end of the drive control component (26), and a protective frame (22) is fixedly connected to the upper end of the drive control component (26). A sealing plate (23) is fixedly and sealed on the protective frame (22).

2. The high-performance, low-resistance pressure regulating butterfly valve according to claim 1, characterized in that: The valve body (4) is provided with an O-ring (11), an internal hex bolt (12), a fixing plate (13), a spring (14) and a movable valve seat (15) on the right side. The valve body (4) is connected to the movable valve seat (15) by an O-ring seal (11). The side end of the movable valve seat (15) is limited by an internal hex bolt (12), a fixing plate (13), and a spring (14) to ensure that the position of the movable valve seat (15) is limited. The butterfly plate (5) includes a docking shaft (19), a sealing groove (20), and a combined plate frame (21); The combined plate frame (21) is provided with a sealing groove (20), and a docking shaft (19) is fixedly connected to the top of the combined plate frame (21). The combined plate frame (21) is connected to the valve stem (6) through the docking shaft (19). Furthermore, the docking shaft (19) is a central through structure, and the rod at the center of the docking shaft (19) is a valve stem (6). The rear cover (9) seals the bottom of the valve body (4) by means of a snap ring (7) and a washer (8); The spring (14) is fixedly connected to the valve body (4), and the valve body (4) is limited by the spring (14) to install the movable valve seat (15).

3. The high-performance, low-resistance pressure regulating butterfly valve according to claim 1, characterized in that: The protective frame (22) is internally limited by a driven limiting component (24), and the upper part of the inner end of the drive control component (26) is limited by a transmission drive component (25).

4. The high-performance, low-resistance pressure regulating butterfly valve according to claim 3, characterized in that: The driven limiting component (24) includes a spring (28), a buffer frame (29), a push plate (30), a first hinge frame (31), a second hinge frame (32), a docking hinge seat (33), a limiting sleeve (34), and a push guide rod (35). The upper end of the buffer frame (29) is slidably connected to the push plate (30), and the side of the buffer frame (29) close to the push plate (30) is elastically connected to the spring (28). The spring (28) is limited by the driven limiting component (24).

5. The high-performance, low-resistance pressure regulating butterfly valve according to claim 4, characterized in that: The push plate (30) is hinged to a first hinge frame (31) on one side, and a second hinge frame (32) is hinged to the side of the first hinge frame (31). The second hinge frame (32) is adapted to and connected to the docking hinge seat (33), and the docking hinge seat (33) is fixedly connected to the limiting sleeve (34).

6. The high-performance, low-resistance pressure regulating butterfly valve according to claim 5, characterized in that: The center of the limiting sleeve (34) is slidably connected to a push guide rod (35), the push guide rod (35) is fixedly connected to the push plate (30), and the docking hinge seat (33) and the limiting sleeve (34) are kept within the protective frame (22) for limitation.

7. The high-performance, low-resistance pressure regulating butterfly valve according to claim 6, characterized in that: The transmission drive component (25) includes a mating gear plate (36), a first inclined guide plate (37), a second inclined guide plate (38), and a drive link (39). The mating gear plate (36) is fixedly connected to one side of the drive link (39). The first inclined guide plate (37) and the second inclined guide plate (38) are fixedly connected to the mating gear plate (36). The first inclined guide plate (37) and the second inclined guide plate (38) are arranged in parallel, and there is a gap between the first inclined guide plate (37) and the second inclined guide plate (38).

8. The high-performance, low-resistance pressure regulating butterfly valve according to claim 7, characterized in that: The drive control component (26) includes a base frame plate (40), a motor (41), an active connecting rod (42), an active gear plate (43), a drive wheel (44), a hinged push rod (45), a displacement adjustment frame (46), a limiting frame (47), and a photoelectric sensor (48). The base frame plate (40) is equipped with a motor (41). The motor (41) drives the active gear plate (43) and the drive wheel (44) through the active connecting rod (42). The side end of the drive wheel (44) is hinged with a hinged push rod (45). The lower end of the hinged push rod (45) is hinged with a displacement adjustment frame (46). The displacement adjustment frame (46) slides and adjusts on the limiting frame (47). The rear end of the limiting frame (47) is equipped with a photoelectric sensor (48). The photoelectric sensor (48) performs the work of sensing the position of the displacement adjustment frame (46).

9. The high-performance, low-resistance pressure regulating butterfly valve according to claim 8, characterized in that: The active gear plate (43) meshes with the mating gear plate (36). The active gear plate (43) drives the first inclined guide plate (37) and the second inclined guide plate (38) to rotate. The first inclined guide plate (37) and the second inclined guide plate (38) drive the push plate (30) to reciprocate and adjust.

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