Main nozzle filtering structure convenient to disassemble and assemble

Abstract

The main nozzle filtering structure convenient to disassemble and assemble comprises a main nozzle, a filtering assembly, a high-pressure air pipe and a bolt, an air inlet is formed in the main nozzle, the air inlet is arranged to be a stepped hole, the stepped hole comprises a first hole, a second hole and a third hole from outside to inside, and the inner diameters of the first hole, the second hole and the third hole are sequentially decreased. A filtering assembly is arranged in the second hole, one end of the filtering assembly abuts against the shaft shoulder between the second hole and the third hole, internal threads matched with the external threads on the bolt are arranged on the inner wall of the first hole, a through hole is formed in the center of the bolt along the central axis, and the high-pressure air pipe is sleeved with the bolt through the through hole. A pressing edge is arranged on the outer side face of the end of the high-pressure air pipe, the high-pressure air pipe and the pressing edge on the high-pressure air pipe are placed in the first hole, the bolt is screwed in the first hole, the bolt abuts against the pressing edge, and the pressing edge abuts against the shaft shoulder between the first hole and the second hole.

Description

Technical Field

[0001] The utility model relates to the technical field of air jet looms, in particular to a main nozzle filtering structure that is easy to disassemble and assemble. Background Art

[0002] The air jet loom is a shuttleless loom that uses a jet of air to pull the weft yarn through the shed. It uses air as the weft insertion medium, and the compressed air jet generates friction traction on the weft yarn to pull it, bringing the weft yarn through the shed, and uses the jet generated by the air jet to achieve the purpose of weft insertion. During the air jet process, the air flow may carry impurities and contact the yarn together, thereby damaging the yarn. The filter device installed inside the main nozzle can filter the air flow, but the filter device needs to be disassembled and replaced for a long time, and the internally installed filter device is more troublesome to disassemble and replace. Utility Model Content

[0003] In order to solve the above technical deficiencies, the utility model provides a main nozzle filter structure that is easy to disassemble and assemble, and the filter structure on the main nozzle can be quickly disassembled and assembled.

[0004] The utility model discloses a main nozzle filter structure which is easy to disassemble and assemble, comprising a main nozzle, a filter assembly, a high-pressure air pipe and a bolt. An air inlet is arranged on the main nozzle, and the air inlet is arranged as a stepped hole. The stepped holes include a No. 1 hole, a No. 2 hole and a No. 3 hole from the outside to the inside. The inner diameters of the No. 1 hole, the No. 2 hole and the No. 3 hole are successively reduced. A filter assembly is arranged in the No. 2 hole. One end of the filter assembly is pressed against a shoulder between the No. 2 hole and the No. 3 hole. An internal thread matching the external thread on the bolt is arranged on the inner wall of the No. 1 hole. A through hole is arranged along the central axis of the bolt. The bolt is sleeved on the high-pressure air pipe through the through hole and the end with the thread faces the end of the high-pressure air pipe. A pressing edge is arranged on the outer side surface of the end of the high-pressure air pipe. The high-pressure air pipe and the pressing edge thereon are placed in the No. 1 hole. The bolt is screwed in the No. 1 hole. The bolt is pressed against the pressing edge, and the pressing edge is pressed against the shoulder between the No. 1 hole and the No. 2 hole.

[0005] When the filter assembly needs to be replaced, unscrew the bolt from the No. 1 hole, take out the high-pressure air pipe, and then the filter assembly can be replaced, which is simple and convenient.

[0006] In order to facilitate the removal of the filter assembly, a rod body is provided at the end of the filter assembly close to the high-pressure air pipe. The rod body is located inside the high-pressure air pipe. When the high-pressure air pipe is removed, the rod body is located outside the stepped hole, making it convenient to remove the filter assembly.

[0007] In order to increase the sealing performance, a sealing ring is arranged between the pressing edge and the shaft shoulder between the No. 1 hole and the No. 2 hole.

[0008] The utility model provides a main nozzle filter structure that is easy to disassemble and assemble, and has the beneficial effect that the filter assembly can be quickly replaced by removing the bolts and taking away the high-pressure air pipe, and the replacement is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model. DETAILED DESCRIPTION

[0010] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0011] Embodiment 1:

[0012] like Figure 1 As shown, the utility model discloses a main nozzle filter structure that is easy to disassemble and assemble, including a main nozzle 1, a filter assembly 3, a high-pressure air pipe 5, a bolt 4, a rod body 6, and a sealing ring 8. The main nozzle 1 is provided with an air inlet, and the air inlet is arranged as a stepped hole. The stepped hole includes a No. 1 hole, a No. 2 hole, and a No. 3 hole 2 from the outside to the inside. The inner diameters of the No. 1 hole, the No. 2 hole, and the No. 3 hole 2 are successively smaller. A filter assembly 3 is arranged in the No. 2 hole, and one end of the filter assembly 3 is pressed against the shoulder between the No. 2 hole and the No. 3 hole 2. The inner wall of the No. 1 hole is provided with a thread that is connected to the external thread on the bolt 4. Matching internal threads, a through hole is provided at the center of the bolt 4 along the central axis, the bolt 4 is sleeved on the high-pressure air pipe 5 through the through hole and the threaded end faces the end of the high-pressure air pipe 5, a pressure edge 7 is provided on the outer side of the end of the high-pressure air pipe 5, the high-pressure air pipe 5 and the pressure edge 7 thereon are placed in the No. 1 hole, a sealing ring 8 is provided between the pressure edge 7 and the axial shoulder between the No. 1 hole and the No. 2 hole, the bolt 4 is screwed into the No. 1 hole, the bolt 4 is pressed against the pressure edge 7, and the end of the filter assembly 3 close to the high-pressure air pipe 5 is provided with a rod body 6, and the rod body 6 is located in the high-pressure air pipe 5.

[0013] When the filter assembly 3 needs to be replaced, the bolt 4 is unscrewed from the No. 1 hole, the high-pressure air pipe 5 is taken out, and the filter assembly 3 can be taken out through the rod body 6 for replacement.

[0014] In the description of the present application, 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 indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0015] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be an interactive relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0016] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0017] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simplified modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A main nozzle filter structure that is easy to disassemble and assemble, characterized in that: The invention comprises a main nozzle (1), a filter assembly (3), a high-pressure air pipe (5), and a bolt (4). The main nozzle (1) is provided with an air inlet, which is arranged as a stepped hole. The stepped hole comprises a No. 1 hole, a No. 2 hole, and a No. 3 hole (2) from the outside to the inside. The inner diameters of the No. 1 hole, the No. 2 hole, and the No. 3 hole (2) are successively smaller. The No. 2 hole is provided with a filter assembly (3). One end of the filter assembly (3) is pressed against a shaft shoulder between the No. 2 hole and the No. 3 hole (2). The inner wall of the No. 1 hole is provided with a filter assembly (3) which is aligned with the outer diameter of the bolt (4). The thread is matched with an internal thread, a through hole is arranged at the center of the bolt (4) along the central axis, the bolt (4) is sleeved on the high-pressure air pipe (5) through the through hole and the end with the thread faces the end of the high-pressure air pipe (5), a pressing edge (7) is arranged on the outer side of the end of the high-pressure air pipe (5), the high-pressure air pipe (5) and the pressing edge (7) thereon are placed in the No. 1 hole, the bolt (4) is screwed into the No. 1 hole, the bolt (4) is pressed against the pressing edge (7), and the pressing edge (7) is pressed against the shaft shoulder between the No. 1 hole and the No. 2 hole.

2. The main nozzle filter structure that is easy to disassemble and assemble according to claim 1 is characterized in that: A rod body (6) is provided at the end of the filter assembly (3) close to the high-pressure air pipe (5), and the rod body (6) is located inside the high-pressure air pipe (5).

3. The main nozzle filter structure that is easy to disassemble and assemble according to claim 2 is characterized in that: A sealing ring (8) is arranged between the pressing edge (7) and the shaft shoulder between the No. 1 hole and the No. 2 hole.

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