Novel butterfly valve structure

Abstract

The utility model discloses a novel butterfly valve structure which comprises a valve body, an annular protruding part is arranged in the valve body, a valve plate is arranged in the annular protruding part, sealing rubber rings attached to the side wall of the valve plate are arranged on the two sides of the annular protruding part, and pressing rings are arranged on the left side and the right side of the valve body respectively. A sealing rubber ring is arranged in the valve body, a pressing ring is arranged in the valve body, the pressing ring is tightly attached to the sealing rubber ring, a plurality of mounting holes are formed in the pressing ring, locking holes communicated with the mounting holes are formed in the inner wall of the valve body, telescopic locking assemblies are arranged in the mounting holes, and the telescopic locking assemblies can be inserted into the locking holes to restrain the left-right position of the pressing ring. The telescopic locking assembly is inserted into the locking hole, so that the pressing ring and the valve body are fixed and restrained, and the pressing ring is prevented from moving left and right. Compared with existing threaded connection, the telescopic locking assembly can avoid the problem that the telescopic locking assembly cannot be disassembled due to rusting and thread slipping.

Description

Technical Field

[0001] The utility model relates to a novel butterfly valve structure. Background Art

[0002] Prior art, such as Chinese utility model patent document, application number 202323048697.3, discloses a butterfly valve with good sealing performance, including a valve body, a valve plate is rotatably arranged in the valve body, elastic sealing rings fitting with the valve plate are respectively arranged on the valve body on the front and rear sides of the valve plate, an annular boss is arranged in the valve body, the valve plate is arranged in the annular boss and fits with the annular boss, a first limiting groove is arranged on the front and rear side wall surfaces of the annular boss, an annular limiting member is arranged in the valve body on the front and rear sides of the annular boss, a second limiting groove is arranged on the end surface of the annular limiting member close to the first limiting groove, the first limiting groove and the second limiting groove are connected to each other to form an installation groove for installing the elastic sealing ring, and the annular limiting member is threadedly connected to the valve body.

[0003] Based on the above, in the prior art, the ring-type limiter is connected to the valve body by a threaded connection. During long-term use, the threaded connection is prone to rust and difficult to disassemble. At the same time, the threaded connection may also have the problem of thread slippage. When the elastic sealing ring needs to be replaced in the future, the ring-type limiter may be unable to be disassembled, which needs further improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a novel butterfly valve structure using a locking assembly pin connection.

[0005] A new butterfly valve structure designed for this purpose includes a valve body, an annular protrusion is arranged in the valve body, a valve plate is arranged in the annular protrusion, sealing rubber rings that fit with the side walls of the valve plate are arranged on both sides of the annular protrusion, and pressure rings are arranged on the left and right sides of the valve body respectively, and the pressure rings are tightly fitted with the sealing rubber rings. A plurality of mounting holes are arranged on the pressure ring, and locking holes that are interconnected with the mounting holes are arranged on the inner wall of the valve body, and a telescopic locking assembly is arranged in the mounting hole, and the telescopic locking assembly can be inserted into the locking hole to constrain the left and right positions of the pressure ring.

[0006] Preferably, the telescopic locking assembly includes a mounting sleeve fixedly installed in the mounting hole, a movable pull rod is passed through the mounting sleeve, a locking pin is provided at one end of the movable pull rod facing the locking hole, the locking pin can be inserted into the locking hole to constrain the left and right positions of the pressure ring, an elastic element for applying a force to the locking pin so that the locking pin is inserted into the locking hole is provided between the locking pin and the mounting sleeve, and a pull ring is provided at the end of the movable pull rod away from the locking hole.

[0007] Preferably, there are at least two mounting holes.

[0008] Preferably, first positioning grooves are arranged on the left and right side walls of the annular protrusion, and a first positioning protrusion is arranged on the sealing rubber ring, and the first positioning protrusion is movably inserted in the first positioning grooves.

[0009] Preferably, a second positioning groove is provided on the end surface of the pressure ring facing the sealing rubber ring, and a second positioning protrusion is provided on the sealing rubber ring, and the second positioning protrusion is movably inserted in the second positioning groove.

[0010] Preferably, positioning grooves are provided on the inner wall of the valve body on the left and right sides of the annular protrusion, the positioning grooves extend outward and are opened at one end outward, and the pressure ring is provided with positioning blocks inserted in the positioning grooves.

[0011] Compared with the prior art, the utility model has a plurality of mounting holes on the compression ring, a locking hole interconnected with the mounting holes is provided on the inner wall of the valve body, and a telescopic locking assembly is provided in the mounting hole, and the telescopic locking assembly can be inserted into the locking hole to constrain the left and right position of the compression ring. The utility model inserts the telescopic locking assembly into the locking hole to fix and constrain the compression ring and the valve body to prevent the compression ring from moving left and right. Compared with the existing threaded connection, the telescopic locking assembly can avoid the problem of rust and thread slippage that makes it impossible to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 This is one of the cross-sectional structural schematic diagrams of the utility model;

[0014] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0015] Figure 4 This is the second schematic diagram of the cross-sectional structure of the present utility model. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] See also Figure 1-Figure 4 A novel butterfly valve structure comprises a valve body 10, wherein an annular protrusion 110 is arranged inside the valve body 10, wherein a valve plate 20 is arranged inside the annular protrusion 110, and sealing rubber rings 30 which are fitted with side walls of the valve plate 20 are arranged on both sides of the annular protrusion 110, and pressure rings 40 are respectively arranged on the left and right sides of the valve body 10, wherein the pressure ring 40 is tightly fitted with the sealing rubber ring 30, and a plurality of mounting holes 410 are arranged on the pressure ring 40, and a locking hole 130 which is interconnected with the mounting hole 410 is arranged on the inner wall of the valve body 10, and a telescopic locking assembly 50 is arranged in the mounting hole 410, and the telescopic locking assembly 50 can be inserted into the locking hole 130 to constrain the left and right positions of the pressure ring 40.

[0018] Compared with the prior art, the utility model has a plurality of mounting holes on the compression ring, a locking hole interconnected with the mounting holes is provided on the inner wall of the valve body, and a telescopic locking assembly is provided in the mounting hole, and the telescopic locking assembly can be inserted into the locking hole to constrain the left and right position of the compression ring. The utility model inserts the telescopic locking assembly into the locking hole to fix and constrain the compression ring and the valve body to prevent the compression ring from moving left and right. Compared with the existing threaded connection, the telescopic locking assembly can avoid the problem of rust and thread slippage that makes it impossible to disassemble.

[0019] See also Figure 3 The telescopic locking assembly 50 includes a mounting sleeve 510 fixedly mounted in the mounting hole 410, a movable pull rod 520 is passed through the mounting sleeve 510, a locking pin 540 is provided at one end of the movable pull rod 520 facing the locking hole 130, the locking pin 540 can be inserted into the locking hole 130 to constrain the left and right positions of the pressure ring 40, an elastic element 530 for applying a force to the locking pin 540 so that the locking pin 540 is inserted into the locking hole 130 is provided between the locking pin 540 and the mounting sleeve 510, and a pull ring 550 is provided at one end of the movable pull rod 520 away from the locking hole 130.

[0020] In the locked state, the elastic element 530 applies a force to the locking pin 540 , so that the locking pin 540 is inserted into the locking hole 130 .

[0021] When the pressure ring 40 is to be removed to replace the sealing rubber ring 30, the pull ring 550 is pulled to drive the movable pull rod 520 and the locking pin 540 to move toward the side away from the locking hole 130 until the locking pin 540 completely leaves the locking hole 130, thus completing the unlocking.

[0022] Furthermore, at least two mounting holes 410 are provided, and the locking hole 130 and the telescopic locking assembly 50 are provided synchronously.

[0023] See also Figure 3 A first positioning groove 120 is provided on the left and right side walls of the annular protrusion 110, and a first positioning protrusion 320 is provided on the sealing rubber ring 30. The first positioning protrusion 320 is movably inserted in the first positioning groove 120 to achieve positioning fit. The positioning fit can constrain the position of the sealing rubber ring 30 to enhance the sealing performance.

[0024] See also Figure 3 A second positioning groove 420 is provided on the end face of the pressure ring 40 facing the sealing rubber ring 30, and a second positioning protrusion 330 is provided on the sealing rubber ring 30. The second positioning protrusion 330 is movably inserted in the second positioning groove 420 to achieve positioning fit. The positioning fit can constrain the position of the sealing rubber ring 30 to enhance the sealing performance.

[0025] See also Figure 1 A positioning groove 101 is provided on the inner wall of the valve body 10 on the left and right sides of the annular protrusion 110. The positioning groove 101 extends outward and is opened at one end outward. A positioning block 401 inserted into the positioning groove 101 is provided on the pressure ring 40.

[0026] The cooperation between the positioning groove 101 and the positioning block 401 can constrain the assembly position of the pressing ring 40 to ensure that the positions of the locking hole 130 and the mounting hole 410 correspond to each other.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel butterfly valve structure, comprising a valve body (10), wherein an annular protrusion (110) is arranged inside the valve body (10), a valve plate (20) is arranged inside the annular protrusion (110), sealing rubber rings (30) are arranged on both sides of the annular protrusion (110) and are in contact with the side walls of the valve plate (20), and pressure rings (40) are arranged on the left and right sides of the valve body (10), respectively, and the pressure rings (40) are in close contact with the sealing rubber rings (30), characterized in that: The pressure ring (40) is provided with a plurality of mounting holes (410), the inner wall of the valve body (10) is provided with a locking hole (130) which is interconnected with the mounting holes (410), and a telescopic locking assembly (50) is provided in the mounting hole (410), and the telescopic locking assembly (50) can be inserted into the locking hole (130) to constrain the left and right positions of the pressure ring (40).

2. A novel butterfly valve structure according to claim 1, characterized in that: The telescopic locking assembly (50) includes a mounting sleeve (510) fixedly mounted in the mounting hole (410), a movable pull rod (520) passing through the mounting sleeve (510), a locking pin (540) being provided at one end of the movable pull rod (520) facing the locking hole (130), the locking pin (540) being insertable into the locking hole (130) to constrain the left and right positions of the pressure ring (40), an elastic element (530) being provided between the locking pin (540) and the mounting sleeve (510) for applying a force to the locking pin (540) so that the locking pin (540) is inserted into the locking hole (130), and a pull ring (550) is provided at one end of the movable pull rod (520) away from the locking hole (130).

3. A novel butterfly valve structure according to claim 1, characterized in that: At least two mounting holes (410) are provided.

4. A novel butterfly valve structure according to claim 1, characterized in that: The left and right side walls of the annular protrusion (110) are provided with first positioning grooves (120), the sealing rubber ring (30) is provided with a first positioning protrusion (320), and the first positioning protrusion (320) is movably inserted into the first positioning groove (120).

5. A novel butterfly valve structure according to claim 1, characterized in that: A second positioning groove (420) is provided on the end surface of the pressure ring (40) facing the sealing rubber ring (30), and a second positioning protrusion (330) is provided on the sealing rubber ring (30), and the second positioning protrusion (330) is movably inserted in the second positioning groove (420).

6. A novel butterfly valve structure according to claim 1, characterized in that: Positioning grooves (101) are provided on the inner wall of the valve body (10) on the left and right sides of the annular protrusion (110); the positioning grooves (101) extend outward and are opened at one end outward; and the pressure ring (40) is provided with a positioning block (401) inserted into the positioning groove (101).

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