Pneumatic flange butterfly valve convenient to disassemble

Abstract

The utility model discloses a pneumatic flange butterfly valve convenient to disassemble, which relates to the technical field of pneumatic butterfly valves and comprises a butterfly valve seat and flange plates fixedly mounted at two ends of the butterfly valve seat. During fitting, a semicircular block is driven to move upwards to extrude trapezoidal clamping plates on the two sides, so that the trapezoidal clamping plates are located on the two sides of the bottom of the semicircular block under the action of telescopic springs, clamping can be achieved at the moment, and operation is convenient and fast; and the trapezoidal clamping block can be driven to be far away from the bottom of the semicircular block through the arrangement of the dismounting assembly, so that the clamping connection between the first mounting seat and the second mounting seat is relieved, and the pneumatic part can be dismounted and maintained only by pushing the T-shaped push rod during dismounting.

Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic butterfly valves, specifically a pneumatic flange butterfly valve that is easy to disassemble. Background Technology

[0002] A pneumatic butterfly valve consists of a pneumatic actuator and a butterfly valve. The pneumatic butterfly valve uses a circular butterfly plate that rotates with the valve stem to open and close, thus realizing the start-up action. It is mainly used as a shut-off valve, but it can also be designed to have regulating or shut-off and regulating functions. Butterfly valves are increasingly used in low-pressure, large and medium-diameter pipelines.

[0003] Document CN202321078624.6 discloses a flanged pneumatic butterfly valve, comprising a butterfly valve seat, a flange, and a pneumatic mechanism housing. The flange is provided with a sealing ring, the butterfly valve seat has a valve cylinder, the valve cylinder has a handle and a second mounting seat, and the pneumatic mechanism housing has a first mounting seat. The valve also includes a connecting assembly located between the first and second mounting seats for connecting them. This invention features a connecting assembly, facilitating convenient and quick installation and disassembly between the valve cylinder and the pneumatic mechanism housing.

[0004] The flange-type pneumatic butterfly valve proposed in the aforementioned patent is equipped with a connecting component. The connecting component is used for the installation, disassembly and maintenance of the pneumatic components. However, the installation and disassembly are achieved by rotating bolts. The bolts are prone to wear during the back-and-forth disassembly process, which affects the later use. In addition, the installation and disassembly using bolts is cumbersome, requiring constant tightening, which is inconvenient for daily use.

[0005] Therefore, we propose a pneumatic flange butterfly valve that is easy to disassemble in order to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a pneumatic flange butterfly valve that is easy to disassemble, in order to solve the problems mentioned in the background art, such as the easy wear of bolts during repeated disassembly and reassembly, which affects the later use, and the cumbersome installation and disassembly of bolts, which requires constant tightening and is inconvenient for daily use.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic flange butterfly valve that is easy to disassemble, comprising a butterfly valve seat and flanges fixedly installed at both ends of the butterfly valve seat. A valve cylinder is provided on the top of the butterfly valve seat, and a first mounting seat is provided at the upper end of the valve cylinder. A second mounting seat is fitted on the top of the first mounting seat. A pneumatic component is provided on the top of the second mounting seat, and mounting blocks are fixedly installed on both the front and rear sides of the second mounting seat. A disassembly component is installed on the top of each mounting block, and a snap-fit ​​component is installed on the bottom of each mounting block.

[0008] The disassembly assembly includes a pressing block slidably mounted on the top center of one side of the mounting block and a T-shaped push rod fixedly mounted on the front side of the pressing block. Trapezoidal blocks are fitted to both sides of the pressing block, and L-shaped rods are fixedly mounted on the outer sides of the trapezoidal blocks. A moving block is fixedly mounted on the lower end of each L-shaped rod, and a square rod is fixedly mounted on the inner side of each moving block. A rectangular plate is fixedly mounted on the inner end of each square rod.

[0009] Preferably, a circular groove is provided at the center of the bottom of the mounting block, and an opening is provided on both sides of the inner cavity of the circular groove, and the inner side of the moving block extends into the inner cavity of the opening.

[0010] Preferably, square grooves are fixedly installed on both sides of the first mounting base;

[0011] T-shaped blocks are fixedly installed on both sides of the second mounting base, and the bottom of the T-shaped blocks are respectively inserted into the inner cavity of the square groove.

[0012] Preferably, a fixing plate is slidably sleeved on the output end of the square rod, and the front and rear sides of the fixing plate are respectively fixedly installed on the inner wall of the opening cavity.

[0013] Preferably, the outer side of the rectangular plate is elastically connected to the front and rear sides of the fixed plate by a telescopic spring.

[0014] Preferably, the snap-fit ​​assembly includes a cylinder disposed at the bottom of the front mounting block, the top of the cylinder extending into the inner cavity of the opening, and a fixing post fixedly installed at the middle of the top of the cylinder, a semi-circular block fixedly installed at the upper end of the fixing post, and trapezoidal clips fitted to both sides of the bottom of the semi-circular block, the outer sides of the trapezoidal clips extending into the inner cavity of the opening, and the outer sides of the trapezoidal clips fixedly installed on the outer wall of one side of the rectangular plate.

[0015] Preferably, a mounting plate is fixedly installed at the bottom of the cylinder, and the rear side of the mounting plate is fixedly installed on the outer wall of one side of the first mounting base.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The snap-fit ​​assembly enables the first and second mounting seats to snap together. During snap-fit, the semi-circular block moves upward and presses the trapezoidal plates on both sides, so that they are located on both sides of the bottom of the semi-circular block under the action of the telescopic spring. At this time, the snap-fit ​​is achieved, which is convenient to operate. The square groove and T-shaped block can guide and limit the first and second mounting seats, thereby improving the stability after snap-fit ​​in conjunction with the snap-fit ​​assembly.

[0018] 2. By setting up the disassembly component, the trapezoidal block can be moved away from the bottom of the semi-circular block, thereby releasing the locking between the first and second mounting seats. During disassembly, simply pushing the T-shaped push rod will move the pressing block backward, thus realizing the movement of the trapezoidal block. This facilitates the disassembly and maintenance of pneumatic components and provides good performance. Attached Figure Description

[0019] Figure 1 This is a perspective view of the entire utility model;

[0020] Figure 2 This is a top-down perspective view of the present invention.

[0021] Figure 3 This is a partial cross-sectional perspective view of the first mounting base of this utility model;

[0022] Figure 4 This is a three-dimensional structural view of the mounting block of this utility model;

[0023] Figure 5 This is a partial cross-sectional perspective view of the mounting block of this utility model;

[0024] Figure 6 This is a top perspective view of the unfolded mounting block of this utility model;

[0025] Figure 7 This is a partial perspective view of the unfolded mounting block of this utility model;

[0026] Figure 8 This is a partial bottom perspective view of the mounting block of this utility model;

[0027] Figure 9 For the present utility model Figure 5 Enlarged view of point A in the middle.

[0028] In the diagram: 1. Butterfly valve seat; 2. Flange; 3. Valve cylinder; 4. First mounting seat; 41. Square groove; 5. Second mounting seat; 51. T-shaped block; 6. Pneumatic component; 7. Mounting block; 71. Circular groove; 72. Opening; 8. Disassembly assembly; 81. Pressing block; 82. T-shaped push rod; 83. Trapezoidal block; 84. L-shaped rod; 85. Moving block; 86. Square rod; 861. Fixing plate; 87. Rectangular plate; 871. Telescopic spring; 9. Snap-fit ​​assembly; 91. Cylindrical; 911. Mounting plate; 92. Fixing column; 93. Semicircular block; 94. Trapezoidal clamping plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: Please refer to Figure 1-9 This utility model provides a technical solution: a pneumatic flange butterfly valve that is easy to disassemble, such as... Figure 1 As shown, the device includes a butterfly valve seat 1 and flanges 2 fixedly installed at both ends of the butterfly valve seat 1. A valve cylinder 3 is provided on the top of the butterfly valve seat 1, and a first mounting seat 4 is provided on the upper end of the valve cylinder 3. A second mounting seat 5 is fitted on the top of the first mounting seat 4. A pneumatic component 6 is provided on the top of the second mounting seat 5, and mounting blocks 7 are fixedly installed on both the front and rear sides of the second mounting seat 5. A disassembly component 8 is installed on the top of each mounting block 7, and a snap-fit ​​component 9 is installed on the bottom of each mounting block 7. The disassembly component 8 allows for disassembly and detachment of the first mounting seat 4 and the second mounting seat 5, while the snap-fit ​​component 9 allows for installation of the first mounting seat 4 and the second mounting seat 5, making operation convenient.

[0031] The disassembly assembly 8 includes a pressing block 81 slidably mounted on the top center of a mounting block 7 on one side and a T-shaped push rod 82 fixedly mounted on the front side of the pressing block 81. Trapezoidal blocks 83 are fitted to both sides of the pressing block 81. L-shaped rods 84 are fixedly mounted on the outer side of each trapezoidal block 83, and movable blocks 85 are fixedly mounted on the lower end of each L-shaped rod 84. Square rods 86 are fixedly mounted on the inner side of each movable block 85, and rectangular plates 87 are fixedly mounted on the inner end of each square rod 86. The movement of the pressing block 81 can move the trapezoidal blocks 83, facilitating the disassembly process.

[0032] A circular groove 71 is provided at the center of the bottom of the mounting block 7. An opening 72 is provided on both sides of the inner cavity of the circular groove 71. The inner side of the moving block 85 extends into the inner cavity of the opening 72. The circular groove 71 and the opening 72 are used for snap-fit ​​and disassembly.

[0033] Square grooves 41 are fixedly installed on both sides of the first mounting base 4. The square grooves 41 facilitate the deployment of the guiding and limiting operation.

[0034] T-shaped blocks 51 are fixedly installed on both sides of the second mounting base 5. The bottom of the T-shaped blocks 51 is inserted into the inner cavity of the square groove 41. The square groove 41 and the T-shaped blocks 51 can guide and limit the first mounting base 4 and the second mounting base 5.

[0035] A fixing plate 861 is slidably sleeved on the output end of the square rod 86. The fixing plate 861 has a square hole for sliding of the square rod 86. The front and rear sides of the fixing plate 861 are respectively fixedly installed on the inner wall of the cavity of the opening 72. The fixing plate 861 is used for sliding of the square rod 86.

[0036] The rectangular plate 87 is elastically connected to the fixed plate 861 on both the front and rear sides by telescopic springs 871. The telescopic springs 871 facilitate the movement and restoration of the rectangular plate 87.

[0037] Specifically, during use, the pneumatic component 6 can be installed. At this time, the first mounting seat 4 and the second mounting seat 5 can be put into contact to achieve engagement. In addition, the T-shaped block 51 will also be inserted into the inner cavity of the square groove 41 to achieve guiding positioning and improve the stability of engagement. When disassembly is required, the T-shaped push rod 82 is pushed to drive the pressing block 81 to move backward. When the pressing block 81 moves backward, it will press the trapezoidal blocks 83 on both sides to move in the opposite direction. When the trapezoidal blocks 83 move in the opposite direction, they will drive the moving block 85 to move in the opposite direction through the adjacent L-shaped rod 84. When the moving block 85 moves in the opposite direction, it will drive the rectangular plate 87 to move in the inner cavity of the opening 72 through the square rod 86, and at the same time, it will press the adjacent telescopic spring 871. When the rectangular plate 87 moves in the opposite direction, the engagement can be released. Then, the pneumatic component 6 can be moved upward to achieve disassembly.

[0038] Example 2: Please refer to Figure 2-8The snap-fit ​​assembly 9 includes a cylinder 91 disposed at the bottom of the front mounting block 7. The top of the cylinder 91 extends into the inner cavity of the opening 72, and a fixing post 92 is fixedly installed at the middle of the top of the cylinder 91. A semi-circular block 93 is fixedly installed at the upper end of the fixing post 92, and trapezoidal clip plates 94 are fitted to both sides of the bottom of the semi-circular block 93. The outer sides of the trapezoidal clip plates 94 extend into the inner cavity of the opening 72, and the outer sides of the trapezoidal clip plates 94 are fixedly installed on the outer wall of one side of the rectangular plate 87. The trapezoidal clip plates 94 can be used to snap-fit ​​and fix the semi-circular block 93.

[0039] A mounting plate 911 is fixedly installed at the bottom of the cylinder 91, and the rear side of the mounting plate 911 is fixedly installed on the outer wall of one side of the first mounting base 4. The mounting plate 911 can support and fix the cylinder 91.

[0040] Specifically, when the first mounting base 4 and the second mounting base 5 are attached, the cylinder 91 will be inserted into the inner cavity of the circular groove 71. As the attachment action unfolds, the semi-circular block 93 will move upward and press the trapezoidal clamping plate 94. After being pressed, the trapezoidal clamping plate 94 will move in the opposite direction and will also press the adjacent telescopic spring 871. When the semi-circular block 93 moves upward to the appropriate position, it will lose the pressure on the trapezoidal clamping plate 94. At this time, the trapezoidal clamping plate 94 will return to its original position under the action of the adjacent telescopic spring 871, thus being located at the bottom of the semi-circular block 93, thereby achieving the snap-fit ​​installation. When the trapezoidal clamping plate 94 moves in the opposite direction, it will move away from the bottom of the semi-circular block 93. At this time, the first mounting base 4 and the second mounting base 5 can be separated to disassemble the pneumatic component 6.

[0041] Working principle: During use, the pneumatic component 6 can be installed. When the first mounting seat 4 and the second mounting seat 5 are in contact, the cylinder 91 will be driven into the inner cavity of the circular groove 71. As the contact action unfolds, the semi-circular block 93 will move upward and press the trapezoidal clamping plate 94. After being pressed, the trapezoidal clamping plate 94 will move in the opposite direction, and at the same time, it will also press the adjacent telescopic spring 871. When the semi-circular block 93 moves upward to the appropriate position, it will lose pressure on the trapezoidal clamping plate 94. At this time, the trapezoidal clamping plate 94 will return to its original position under the action of the adjacent telescopic spring 871, thus being located at the bottom of the semi-circular block 93, thereby achieving the fixation between the first mounting seat 4 and the second mounting seat 5. In addition, the T-shaped block 51 It will also be inserted into the inner cavity of the square slot 41 to achieve guiding positioning. When disassembly is required, the T-shaped push rod 82 is pushed to drive the squeezing block 81 to move backward. When the squeezing block 81 moves backward, it will squeeze the trapezoidal blocks 83 on both sides to move in the opposite direction. When the trapezoidal blocks 83 move in the opposite direction, they will drive the moving block 85 to move in the opposite direction through the adjacent L-shaped rod 84. When the moving block 85 moves in the opposite direction, it will drive the rectangular plate 87 to move in the inner cavity of the opening 72 through the square rod 86, and at the same time squeeze the adjacent telescopic spring 871. When the rectangular plate 87 moves in the opposite direction, it will drive the trapezoidal clamping plate 94 to move in the opposite direction. When the trapezoidal clamping plate 94 moves in the opposite direction, it will move away from the bottom of the semi-circular block 93. Then, the pneumatic component 6 can be moved upward to achieve disassembly.

[0042] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic flange butterfly valve that is easy to disassemble, comprising a butterfly valve seat (1) and flanges (2) fixedly installed at both ends of the butterfly valve seat (1), characterized in that, The top of the butterfly valve seat (1) is provided with a valve cylinder (3), and the upper end of the valve cylinder (3) is provided with a first mounting seat (4). The top of the first mounting seat (4) is fitted with a second mounting seat (5). The top of the second mounting seat (5) is provided with a pneumatic component (6), and mounting blocks (7) are fixedly installed on both the front and rear sides of the second mounting seat (5). The top of the mounting blocks (7) is provided with a disassembly component (8), and the bottom of the mounting blocks (7) is provided with a snap-fit ​​component (9). The disassembly assembly (8) includes a pressing block (81) slidably mounted on the top center of a mounting block (7) on one side and a T-shaped push rod (82) fixedly mounted on the front side of the pressing block (81). Trapezoidal blocks (83) are attached to both sides of the pressing block (81). L-shaped rods (84) are fixedly mounted on the outer side of the trapezoidal blocks (83). A moving block (85) is fixedly mounted on the lower end of the L-shaped rods (84). A square rod (86) is fixedly mounted on the inner side of the moving block (85). A rectangular plate (87) is fixedly mounted on the inner end of the square rod (86).

2. The easily disassembled pneumatic flange butterfly valve according to claim 1, characterized in that: A circular groove (71) is provided at the middle of the bottom of the mounting block (7), and an opening (72) is provided on both sides of the inner cavity of the circular groove (71), and the inner side of the moving block (85) extends into the inner cavity of the opening (72).

3. The easily disassembled pneumatic flange butterfly valve according to claim 1, characterized in that: Square grooves (41) are fixedly installed on both sides of the first mounting base (4); T-shaped blocks (51) are fixedly installed on both sides of the second mounting base (5), and the bottom of the T-shaped blocks (51) are respectively inserted into the inner cavity of the square groove (41).

4. The easily disassembled pneumatic flange butterfly valve according to claim 1, characterized in that: A fixing plate (861) is slidably sleeved on the output end of the square rod (86), and the front and rear sides of the fixing plate (861) are respectively fixedly installed on the inner wall of the cavity of the opening (72).

5. The easily disassembled pneumatic flange butterfly valve according to claim 4, characterized in that: The outer side of the rectangular plate (87) is elastically connected to the front and rear sides of the fixed plate (861) by a telescopic spring (871).

6. The easily disassembled pneumatic flange butterfly valve according to claim 1, characterized in that: The snap-fit ​​assembly (9) includes a cylinder (91) disposed at the bottom of the front mounting block (7). The top of the cylinder (91) extends into the inner cavity of the opening (72), and a fixing post (92) is fixedly installed at the middle of the top of the cylinder (91). A semi-circular block (93) is fixedly installed at the upper end of the fixing post (92), and trapezoidal clips (94) are attached to both sides of the bottom of the semi-circular block (93). The outer sides of the trapezoidal clips (94) extend into the inner cavity of the opening (72), and the outer sides of the trapezoidal clips (94) are fixedly installed on the outer wall of one side of the rectangular plate (87).

7. The easily disassembled pneumatic flange butterfly valve according to claim 6, characterized in that: The bottom of the cylinder (91) is fixedly installed with a mounting plate (911), and the rear side of the mounting plate (911) is fixedly installed on the outer wall of one side of the first mounting base (4).

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