Air leakage prevention baffle valve

Abstract

The utility model relates to a baffle valve, in particular to an air leakage prevention baffle valve which comprises a first channel, a second channel, a valve cover, a connecting assembly and an air cylinder assembly. The first channel communicates with the second channel, the top of the second channel is hermetically connected with a valve cover, and the valve cover hermetically isolates the second channel from the first channel; the air cylinder assembly comprises an air cylinder support, an air cylinder base, a sealing structure and an air cylinder body, the air cylinder support is fixedly connected with the cover plate on the top of the first channel, the top of the air cylinder support is in sealing connection with the air cylinder base through the sealing structure, the top of the air cylinder base is fixedly connected with the air cylinder body, and the movable end of the air cylinder body is connected with the valve deck through the connecting assembly. The utility model mainly aims at providing an air leakage prevention baffle valve which solves the technical problem that an existing baffle valve is prone to air leakage or poor in sealing effect.

Description

Technical Field

[0001] The utility model relates to a baffle valve, in particular to an air leakage prevention baffle valve. Background Art

[0002] A valve is a pipeline accessory used to open and close pipelines, control the flow direction, and adjust and control the parameters of the transported medium. It is very common in daily life and various equipment. There are various existing valves, such as gate valves, throttle valves, ball valves, butterfly valves, diaphragm valves, plunger valves, cock valves, etc. The baffle valve is one of the existing numerous valves.

[0003] In the existing baffle valve, air leakage easily occurs at the connection between the cylinder and the channel, thus affecting the use effect of the baffle valve. Generally, gaskets, sealing rings, etc. are used in the existing baffle valve to improve the sealing effect, but this sealing method has a short service life and poor sealing effect. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an air leakage prevention baffle valve, which solves the technical problems that the existing baffle valve is prone to air leakage or has a poor sealing effect.

[0005] To achieve the above purpose, the utility model provides an air leakage prevention baffle valve, which includes a first channel, a second channel, a valve cover, a connection component, and a cylinder component;

[0006] The first channel is communicated with the second channel, and the top of the second channel is hermetically connected with a valve cover, and the valve cover can hermetically isolate the second channel and the first channel;

[0007] The cylinder component includes a cylinder bracket, a cylinder base, a sealing structure, and a cylinder body. The cylinder bracket is fixedly connected with the cover plate at the top of the first channel. The top of the cylinder bracket is hermetically connected with the cylinder base through the sealing structure. The top of the cylinder base is fixedly connected with the cylinder body. The movable end of the cylinder body is connected with the valve cover through the connection component.

[0008] Preferably, a sealing ring is provided at the connection between the second channel and the valve cover. The bottom of the sealing ring is adhesively connected to the inner wall at the connection of the first channel and the second channel, and the top of the sealing ring abuts against the valve cover.

[0009] Preferably, the sealing structure includes a stuffing box sleeve, an adjusting pipe, a stuffing gland, a stuffing block, and stuffing;

[0010] The top of the cylinder bracket is fixedly connected with the stuffing box sleeve. An adjusting pipe is provided at the top of the stuffing box sleeve. The adjusting pipe is connected to the cylinder base and the stuffing box sleeve as a whole through a first bolt;

[0011] The movable end of the cylinder body is provided at the center of the stuffing box sleeve. Packing is filled between the movable end of the cylinder body and the stuffing box sleeve. A stuffing gland is provided on top of the packing, and a stuffing gland cover is abutted against the top of the stuffing gland. The stuffing gland cover is integrally connected to the stuffing box sleeve through a second bolt.

[0012] Preferably, a connecting pipe is provided inside the cylinder bracket. One end of the connecting pipe is communicated with and hermetically connected to the top of the first channel, and the other end of the connecting pipe is hermetically connected to the sealing structure.

[0013] Preferably, the connecting assembly includes a connecting ball head, a nut, a screw, and a connecting base. The top of the connecting ball head is fixedly connected to the bottom of the telescopic end of the cylinder body. The connecting ball head passes through the nut, and the ball head of the connecting ball head abuts against the nut. The nut is fixedly connected to the connecting base through a screw, and the bottom of the connecting base is fixedly connected to the valve cover.

[0014] Preferably, a manhole is further provided in the first channel, and a manhole cover is hermetically provided on the manhole.

[0015] The beneficial effects obtained by the present utility model are as follows:

[0016] The present utility model connects the cylinder bracket and the cylinder base through a sealing structure, improves the sealing performance of the connection, prevents air leakage during the use of the baffle valve, and improves the working stability of the baffle valve;

[0017] The sealing structure seals the gaps at the joints between the movable end of the cylinder body and various parts through packing to achieve good sealing. At the same time, the packing is compressed by the stuffing gland and the stuffing gland cover to reduce the gaps between the packing, thereby further improving the sealing effect. Description of the Drawings

[0018] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of an air leakage prevention baffle valve disclosed in the specific embodiment of the present utility model;

[0020] Figure 2 is Figure 1 The enlarged view of part I in

[0021] Explanation of the reference numerals in the drawings:

[0022] 1. First channel; 11. Cover plate; 2. Second channel; 3. Valve cover; 4. Cylinder assembly; 41. Cylinder bracket; 42. Cylinder base; 43. Sealing structure; 431. Stuffing box sleeve; 432. Spacing adjustment pipe; 433. Stuffing gland; 434. Stuffing block; 435. Stuffing; 436. First bolt; 437. Second bolt; 44. Cylinder body; 45. Connecting pipe; 5. Connecting assembly; 51. Connecting ball head; 52. Nut; 53. Screw; 54. Connecting base; 6. Sealing ring; 7. Manhole; 8. Manhole cover. Detailed implementation mode

[0023] The following combines the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0024] As Figure 1 . Figure 2 shown, the present invention discloses an air leakage prevention baffle valve, which includes a first channel 1, a second channel 2, a valve cover 3, a connecting assembly 5 and a cylinder assembly 4. As Figure 1 shown, the pipeline of the first channel 1 is in a horizontal state, and the bottom of the first channel 1 is communicated with the second channel 2. Preferably, the first channel 1 and the second channel 2 are perpendicular to each other. The valve cover 3 can seal and isolate the second channel 2 from the first channel 1. Specifically, the valve cover 3 is hermetically covered on the top of the second channel 2. In order to further improve the sealing effect of the valve cover 3, a sealing ring 6 is provided at the top edge of the second channel 2. The bottom of the sealing ring 6 is bonded to the second channel 2, and the top of the sealing ring 6 abuts against the valve cover 3.

[0025] The valve cover 3 is connected to the cylinder assembly 4 through the connecting assembly 5, and the cylinder assembly 4 can drive the valve cover 3 to move up and down. Specifically, the cylinder assembly 4 includes a cylinder bracket 41, a cylinder base 42, a sealing structure 43 and a cylinder body 44. A cover plate 11 is fixedly connected to the top of the first channel 1, the top of the cover plate 11 is fixedly connected to the cylinder bracket 41, and the cylinder bracket 41 is hermetically connected to the cylinder base 42 through the sealing structure 43. As Figure 2As shown, the sealing structure 43 includes a stuffing box sleeve 431, an adjusting pipe 432, a stuffing gland 433, a stuffing block 434, and stuffing 435. The top of the cylinder bracket 41 is fixedly connected to the stuffing box sleeve 431. The adjusting pipe 432 is provided at the top of the stuffing box sleeve 431. During use, the cylinder base 42, the adjusting pipe 432, and the stuffing box sleeve 431 are connected into an integral body by a first bolt 436. The movable end of the cylinder body 44 is provided at the center of the stuffing box sleeve 431. The stuffing 435 is filled between the movable end of the cylinder body 44 and the stuffing box sleeve 431. In order to fix the stuffing 435, the stuffing block 434 is pressed on the top of the stuffing 435. The stuffing block 434 is fixed on the stuffing box sleeve 431 through the stuffing gland 433. Specifically, a second bolt 437 passes through the stuffing gland 433 and is threadedly connected to the stuffing box sleeve 431. The stuffing block 434 and the stuffing gland 433 can prevent the stuffing 435 from moving up and down with the movable end of the cylinder body 44.

[0026] The top of the cylinder base 42 is fixedly connected to the cylinder body 44. The movable end of the cylinder body 44 extends into the first channel 1. The bottom of the cylinder body 44 is connected to the valve cover 3 through a connecting assembly 5. As Figure 1 shown, the connecting assembly 5 includes a connecting ball head 51, a nut 52, a screw 53, and a connecting base 54. The top of the connecting ball head 51 is fixedly connected to the bottom of the telescopic end of the cylinder body 44. The connecting ball head 51 passes through the middle of the nut 52. The ball head plane of the connecting ball head 51 abuts against the bottom of the nut 52. The top edge of the nut 52 abuts against the connecting base 54. The screw 53 passes through the top edge of the nut 52 and is fixedly connected to the connecting base 54.

[0027] In order to further improve the sealing performance, a connecting pipe 45 is further provided inside the cylinder bracket 41. One end of the connecting pipe 45 is hermetically connected to the top of the first channel 1 and is communicated with the first channel 1. The area of the connecting pipe 45 is hermetically connected to the bottom of the stuffing box sleeve 431.

[0028] In order to facilitate the inspection and maintenance of the baffle valve, a manhole 7 is further opened in the first channel 1. The manhole 7 is covered with a manhole cover 8. The manhole 7 is hermetically isolated from the outside through the manhole cover 8.

[0029] During use, starting the cylinder body 44 can adjust the position of the valve cover 3, so as to connect or hermetically isolate the first channel 1 and the second channel 2.

[0030] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. An anti-leakage flapper valve, characterized in that: It comprises a first channel (1), a second channel (2), a valve cover (3), a connecting component (5) and a cylinder component (4); The first channel (1) is in communication with the second channel (2); the top of the second channel (2) is sealed with the valve cover (3); the valve cover (3) is capable of sealing and isolating the second channel (2) and the first channel (1); The cylinder assembly (4) comprises a cylinder support (41), a cylinder base (42), a sealing structure (43) and a cylinder body (44); the cylinder support (41) is fixedly connected to the cover plate (11) at the top of the first channel (1); the top of the cylinder support (41) is sealedly connected to the cylinder base (42) via the sealing structure (43); the top of the cylinder base (42) is fixedly connected to the cylinder body (44); and the movable end of the cylinder body (44) is connected to the valve cover (3) via the connecting assembly (5).

2. The anti-leakage flapper valve according to claim 1, characterized in that: A sealing ring (6) is provided at the connection between the second channel (2) and the valve cover (3); the bottom of the sealing ring (6) is bonded to the inner wall of the connection between the first channel (1) and the second channel (2), and the top of the sealing ring (6) is in contact with the valve cover (3).

3. The air leakage prevention flapper valve according to claim 1, characterized in that: The sealing structure (43) comprises a stuffing box sleeve (431), a pitch-adjustable tube (432), a stuffing gland (433), a stuffing pressing block (434), and stuffing (435); The top of the cylinder support (41) is fixedly connected to the stuffing box sleeve (431), the top of the stuffing box sleeve (431) is provided with the pitch adjusting tube (432), and the pitch adjusting tube (432) is connected to the cylinder base (42) and the stuffing box sleeve (431) as a whole via a first bolt (436); The center of the stuffing box sleeve (431) is provided with a movable end of the cylinder body (44), the space between the movable end of the cylinder body (44) and the stuffing box sleeve (431) is filled with the stuffing (435), the top cover of the stuffing (435) is provided with a stuffing pressing block (434), the top of the stuffing pressing cover (433) is abutted against the stuffing pressing cover (433), and the stuffing pressing cover (433) is connected to the stuffing box sleeve (431) as a whole via a second bolt (437).

4. The anti-leakage flapper valve according to claim 3, characterized in that: A connecting pipe (45) is provided on the inner side of the cylinder support (41); one end of the connecting pipe (45) is communicated with and sealed to the top of the first channel (1); and the other end of the connecting pipe (45) is sealed to the sealing structure (43).

5. The anti-leakage flapper valve according to claim 1, characterized in that: The connecting assembly (5) comprises a connecting ball head (51), a nut (52), a screw (53) and a connecting base (54); the top of the connecting ball head (51) is fixedly connected to the bottom of the telescopic end of the cylinder body (44); the connecting ball head (51) passes through the nut (52); the ball head of the connecting ball head (51) abuts against the nut (52); the nut (52) is fixedly connected to the connecting base (54) via the screw (53); and the bottom of the connecting base (54) is fixedly connected to the valve cover (3).

6. The anti-leakage flapper valve according to claim 1, characterized in that: The first channel (1) is also provided with a hand hole (7), and the hand hole (7) is sealed with a hand hole cover (8).

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