Dust collection fan provided with quick disassembly and assembly connector and used for dust-free saw bench

Abstract

The dust collection fan comprises a volute provided with a motor, an impeller is installed on a rotating shaft of the motor, an air inlet is formed in the position, located on the other side of the motor, of the volute, and an elbow connecting piece connected with a dust collection head pipeline is installed on the air inlet. When dust enters the volute through the elbow connecting piece, the dust collides with the interior of the elbow connecting piece due to inertia and then enters the volute, the speed of the dust can be effectively reduced, and the dust is prevented from directly colliding with the impeller at a high speed; when dust in the dust collecting device is treated, the quick-release connector is rotated, the dust collecting device, the quick-release connector and the corresponding connecting pipelines are disassembled at the same time, simplicity, convenience and high efficiency are achieved, meanwhile, the dust collecting device can be prevented from being opened in a working area, and the working efficiency is improved. And the situation that internal dust leaks out is avoided.

Description

Technical Field

[0001] The utility model relates to a dust-free sawing table, in particular to a dust suction fan with a quick disassembly and assembly connector used for the dust-free sawing table. Background Art

[0002] When a saw table cuts materials (wood, tiles, etc.), a large amount of dust will be generated. A dust-free saw table is a device that sucks away the generated dust while cutting materials. Generally, a dust suction head placed near the saw blade is connected to the air inlet pipe of the volute fan. When the saw blade cuts the material and generates dust, the dust is sucked in through the dust suction head. A dust collection device (which can be a dust box, a dust bucket, a dust bag, etc.) is connected to the air outlet pipe of the volute fan. The connecting pipe of the existing dust collection device is generally fixed to the volute tongue of the volute fan by a steel tie, and the steel tie is locked by a screw. Therefore, whenever the dust inside the dust collection device needs to be handled, in order to ensure that the dust inside the dust collection device does not leak out, the dust collection device and its connecting pipe are generally removed together, that is, the connection between the connecting pipe of the dust collection device and the volute tongue of the volute fan is disassembled, and a tool is needed to loosen the steel tie before removal. In order to reduce the volume of the saw table itself, the internal mechanisms are usually installed more compactly, which increases the difficulty of removing the dust collection device. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A dust suction fan with a quick-detachable connector for a dust-free saw table comprises a volute, a motor is mounted on one side of the volute, an impeller is mounted on the rotating shaft of the motor, the impeller is located in the volute, an air inlet is arranged on the other side of the volute located on the motor, an elbow connector connected to a dust suction head pipe is mounted on the air inlet, an air outlet volute tongue is arranged on the volute, a quick-detachable connector connected to a dust collection device pipe is mounted on the end of the air outlet volute tongue.

[0006] The end of the air outlet volute tongue is provided with at least two first protrusions arranged in a circumferential direction, the quick-release connector is provided with a mounting cavity, the end of the mounting cavity is provided with a second protrusion corresponding to the first protrusion in the direction of the center of the circle, and an inner concave notch is formed between the two second protrusions, the first protrusion is inserted into the mounting cavity through the inner concave notch, and is rotated so that the side surface of the first protrusion abuts against the side surface of the second protrusion.

[0007] A connecting pipe is provided at one end of the quick-release connector away from the volute, and the connecting pipe and the pipeline of the dust collecting device are fixed by a steel tie.

[0008] The elbow connector is a 90° elbow.

[0009] The beneficial effects of the utility model are as follows: a motor is installed on one side of the volute, an impeller is installed on the rotating shaft of the motor, the impeller is located in the volute, and an air inlet is arranged on the other side of the volute located on the motor, and an elbow connector connected with the dust collector pipe is installed on the air inlet. When dust enters the interior of the volute through the elbow connector, due to its inertia, it will collide once inside the elbow connector and then enter the interior of the volute, which can effectively reduce the speed of the dust and avoid directly hitting the impeller at a higher speed to cause damage. An air outlet volute tongue is arranged on the volute, and a quick-release connector connected with the dust collecting device pipe is installed at the end of the air outlet volute tongue. When the dust inside the dust collecting device is processed, the dust collecting device, the quick-release connector and the corresponding connecting pipe are disassembled at the same time by disassembling the quick-release connector, which is simple, convenient and efficient, and can also avoid the situation where the dust collecting device is opened in the working area to cause internal dust leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is an exploded view of the utility model. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0014] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0015] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0016] Reference Figure 1 / 2, a dust suction fan with a quick-detachable connector for a dust-free saw table, comprising a volute 1, a motor 2 is mounted on one side of the volute 1, an impeller 3 is mounted on the rotating shaft of the motor 2, the impeller 3 is located in the volute 1, the volute 1 is provided with an air inlet 4 on the other side of the motor 2, an elbow connector 5 connected to a dust suction head pipe is mounted on the air inlet 4, the elbow connector 5 is a 90° elbow, when dust enters the interior of the volute through the elbow connector, due to its inertia, a dust suction fan 5 is formed inside the elbow connector. The dust particles collide with the impeller and then enter the volute, which can effectively reduce the speed of the dust and avoid directly hitting the impeller at a higher speed to cause damage. The volute 1 is provided with an air outlet volute tongue 6, and the end of the air outlet volute tongue 6 is provided with a quick-release connector 7 connected to the dust collecting device pipe. When the dust inside the dust collecting device is processed, the dust collecting device, the quick-release connector and the corresponding connecting pipe are disassembled at the same time by disassembling the quick-release connector, which is simple, convenient and efficient. At the same time, it can avoid the dust collecting device being opened in the working area to cause internal dust leakage.

[0017] The end of the air outlet volute 6 is provided with at least two first protrusions 8 arranged in a circumferential direction, the quick-release connector 7 is provided with a mounting cavity 9, the end of the mounting cavity 9 is provided with a second protrusion 10 corresponding to the first protrusion 8 in the direction of the center of the circle, and a concave notch 11 is formed between the two second protrusions 10, the first protrusion 8 is inserted into the mounting cavity 9 through the concave notch 11, and the side of the first protrusion 8 is rotated to abut against the side of the second protrusion 10. In this embodiment, the quick-release connector 7 can be disassembled by rotating to align the concave notch 11 with the first protrusion 8. In addition, it can also be connected by means of snaps or the like.

[0018] A connecting pipe is provided at one end of the quick-release connector 7 away from the volute 1 , and the connecting pipe is fixed to the pipeline of the dust collecting device by a steel tie.

[0019] An outer shell 12 is installed on the outer side of the volute 1, and a cavity is formed between the volute 1 and the outer shell 12. The cavity is filled with sound-absorbing cotton, which can effectively reduce noise.

[0020] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0021] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0023] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dust suction fan with a quick-detachable connector for a dust-free saw table, comprising a volute (1), a motor (2) being mounted on one side of the volute (1), an impeller (3) being mounted on a rotating shaft of the motor (2), the impeller (3) being located inside the volute (1), characterized in that The volute (1) is provided with an air inlet (4) on the other side of the motor (2), and an elbow connector (5) connected to the dust collector pipe is installed on the air inlet (4). The volute (1) is provided with an air outlet volute tongue (6), and a quick-release connector (7) connected to the dust collection device pipe is installed at the end of the air outlet volute tongue (6).

2. The dust suction fan with a quick-detachable connector for a dust-free saw table according to claim 1, characterized in that The end of the air outlet volute tongue (6) is provided with at least two first protrusions (8) arranged in a circumferential direction, the quick-release connector (7) is provided with a mounting cavity (9), the end of the mounting cavity (9) is provided with a second protrusion (10) corresponding to the first protrusion (8) in the direction of the center of the circle, an inner concave notch (11) is formed between the two second protrusions (10), the first protrusion (8) is inserted into the mounting cavity (9) through the inner concave notch (11), and is rotated so that the side surface of the first protrusion (8) abuts against the side surface of the second protrusion (10).

3. The dust suction fan with a quick-detachable connector for a dust-free saw table according to claim 1, characterized in that A connecting pipe is provided at one end of the quick-release connector (7) away from the volute (1), and the connecting pipe and the pipeline of the dust collecting device are fixed by a steel tie.

4. The dust suction fan with a quick-detachable connector for a dust-free saw table according to claim 1, characterized in that The elbow connector (5) is a 90° elbow.

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