A telescopic dust screen with a keel

Abstract

The utility model relates to a protective device, especially a telescopic dust blocking device with keel, solves the design problem of dust blocking device. Including fixed bolster and movable assembly on fixed bolster's dust cover, the dust cover is by a plurality of continuous unit section composition, dust cover one end fixed connection fixed bolster, and dust cover other end fixed connection has the handle frame, the dust cover still is equipped with the arc keel, the dust cover is through the handle frame and is dragged along the arc path reciprocating movement. The keel is arranged in the inside of dust cover moving path, and the keel is supported to dust cover to the arc outside abutment. The tail end of keel has a connecting piece fixed, avoids the dust cover without keel support machine operation and inhale, device pulls apart and presents the arc shape, so one pull -out type dust blocking device operation is very convenient, plays the role of wind and dust blocking, can satisfy the various use demand with side -by -side multiple design.

Description

Technical Field

[0001] This utility model relates to a protective device, and more particularly to a telescopic dust-blocking device with a keel. Background Technology

[0002] The use of some machining equipment generates a large amount of dust, floating dust, or other easily airborne impurities, requiring shielding to prevent occupational injuries to workers. Some workplaces require workers to wear face masks, but prolonged use can cause stuffiness or other discomfort, and does not prevent dust from dissipating. There are also devices with dedicated compartments and automatic doors, but these structures are space-consuming and costly, making them unsuitable for some light-duty processing scenarios. For dust-generating scenarios where a full-coverage enclosure is unnecessary, there is a lack of convenient and flexible devices to accommodate diverse processing equipment. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a telescopic dust blocking device with a keel.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a telescopic dust-blocking device with a keel, comprising a fixed bracket and a dust hood movably mounted on the fixed bracket. The dust hood is composed of several continuous unit sections. One end of the dust hood is fixedly connected to the fixed bracket, and the other end of the dust hood is fixedly connected to a handle frame. The dust hood is also provided with an arc-shaped keel frame. The dust hood is moved back and forth along the arc-shaped path by being pulled by the handle frame.

[0005] The keel frame is located inside the moving path of the dust cover, and the keel frame abuts against and supports the dust cover from the outer arc.

[0006] The dust cover can be folded or unfolded by the movement of its unit sections.

[0007] The keel frame includes two symmetrical support rods. One end of the keel frame is fixedly connected to the handle frame, and the other end of the keel frame is provided with a connecting piece connecting the two support rods.

[0008] The fixed bracket has a U-shaped structure, and the keel frame passes through the symmetrical ends of the fixed bracket.

[0009] The dust cover also has a cover that partially covers the keel frame.

[0010] The handle frame includes a base plate, a handle plate, and an impedance plate that are fixedly connected in sequence to the dust cover. The handle plate has a protruding handle portion and a hand-held hole.

[0011] The impedance plate has a U-shaped structure, with its two symmetrical ends facing the direction of movement of the dust hood.

[0012] The handle has an arched structure, and the hand-held hole is square.

[0013] The fixed bracket is equipped with pads through which the keel frame passes.

[0014] The beneficial effects of this utility model are as follows: The telescopic dust-blocking device with a keel provided by this utility model has a handle for easy pulling, a fireproof dust cover, two keels and a bracket that connects and fixes the keels in the middle. The structure is simple and reliable. The handle is connected to the dust cover and the keels are inserted into the dust cover. When pulled out, the dust cover extends and retracts with the keels. The other end of the dust cover is connected to the bracket for support. The tail end of the keel is fixed with a connecting piece to prevent the dust cover from being sucked in when the machine is running without the support of the keel. The device opens in an arc shape. Such a pull-out dust-blocking device is very convenient to operate and serves to block wind and dust. Multiple designs can be installed side by side to meet diverse usage needs. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a bottom view of the structure of this utility model;

[0017] Figure 3 This is a partially enlarged structural schematic diagram of the present invention. Detailed Implementation

[0018] like Figures 1-3 As shown, a telescopic dust-blocking device with a keel frame includes a fixed support 1 and a dust hood 2 movably mounted on the fixed support 1. The dust hood 2 is composed of several continuous unit sections. One end of the dust hood 2 is fixedly connected to the fixed support 1, and the other end is fixedly connected to a handle frame 3. The dust hood 2 is also equipped with an arc-shaped keel frame 4. The dust hood 2 is moved back and forth along the arc-shaped path by the handle frame 3. The fixed support 1 can be directly fixed to the frame of the processing equipment, making modification or installation convenient and applicable to a wide range of applications. The dust hood 2 can be made of flexible fireproof material, with an accordion-like structure that has telescopic characteristics, serving to protect against dust. The keel frame 4 supports the dust hood 2, facilitating smooth and reliable operation. The arc-shaped path design is easier to operate than a straight line and provides a wider shielding range. The keel frame 4 can be designed to support the dust hood 2 or to move the dust hood 2. In this embodiment, the keel frame 4 mainly supports the arc-shaped movement path, which also facilitates rapid folding and unfolding and reduces unnecessary resistance.

[0019] The keel frame 4 is located inside the moving path of the dust cover 2, and the keel frame 4 abuts against and supports the dust cover 2 from the outer arc. The dust cover 2 is also provided with a cover 5 that partially covers the keel frame 4. This mainly describes its supporting and guiding function. It should be noted that in this embodiment, the cover 5 is integrally connected to the dust cover 2. During processing, the keel frame 4 can be passed through, thereby ensuring the integrity of the dust cover 2, reducing maintenance and extending its service life. The dust cover 2 has a folded state and an unfolded state through the movement of unit sections. This is a relatively mature technical means, which can be achieved with an accordion-style injection mold. Alternatively, other materials can be used, and various forms with folding functions can be achieved through continuous series structures. These will not be elaborated or limited here.

[0020] The keel frame 4 includes two symmetrical support rods 6. One end of the keel frame 4 is fixedly connected to the handle frame 3, and the other end of the keel frame 4 is provided with a connecting piece 7 connecting the two support rods 6. The keel frame 4 has a simple and reliable design. The design of the connecting piece 7 can keep the keel frame 4 stable during synchronous movement and also play a certain counterweight role, which is conducive to quick resetting. The fixed bracket 1 has a U-shaped structure, and the keel frame 4 passes through the symmetrical ends of the fixed bracket 1. The fixed bracket 1 has multiple movable connection points with the keel frame 4, which further improves the stability of the keel frame 4 in use, and also facilitates the installation and connection of components such as the dust cover 2.

[0021] The handle frame 3 includes a base plate 8, a handle plate 9, and an impedance plate 10, which are sequentially fixedly connected to the dust hood 2. The handle plate 9 has a protruding handle portion 11 and a hand-held hole 12. The handle frame 3 is composed of three layers of boards. The base plate 8 facilitates connection to the dust hood and also allows for quick disassembly and replacement of other components. The handle portion 11 is for the operator to grip and operate, while the impedance plate 10 resists the impact on the table surface when the dust hood 2 is fully extended, reducing the impact on the dust hood 2. The impedance plate 10 has a U-shaped structure, with its symmetrical ends facing the direction of movement of the dust hood 2. It should be noted that the dust hood 2 itself moves along an arc-shaped path, which not only makes the movement smooth but also allows for relatively controllable movement speed. The design of the impedance plate 10 also has a double isolation effect, which can almost completely prevent dust and impurities from leaking out from it. The handle portion 11 has an arch-shaped structure, and the hand-held hole is square in shape. This shape is more convenient for processing and use, and also avoids sharp angles from injuring the operator. The fixed bracket 1 is provided with a pad 13 for the keel frame 4 to pass through. The pad 13 can be designed to be used as a damping on the inner side of the fixed bracket 1 or as an impact buffer on the outer side, depending on the actual use needs. This is not the only limitation.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.

Claims

1. A telescopic dust-blocking device with a keel, characterized in that, The device includes a fixed support and a dust hood that is movably mounted on the fixed support. The dust hood is composed of several continuous unit sections. One end of the dust hood is fixedly connected to the fixed support, and the other end of the dust hood is fixedly connected to a handle frame. The dust hood is also equipped with an arc-shaped keel frame. The dust hood is moved back and forth along the arc-shaped path by being pulled by the handle frame.

2. The telescopic dust-blocking device with a keel as described in claim 1, characterized in that, The keel frame is located inside the moving path of the dust cover, and the keel frame abuts against and supports the dust cover from the outer arc.

3. A telescopic dust-blocking device with a keel as described in claim 1 or 2, characterized in that, The dust cover can be folded or unfolded by the movement of its unit sections.

4. A telescopic dust-blocking device with a keel as described in claim 3, characterized in that, The keel frame includes two symmetrical support rods. One end of the keel frame is fixedly connected to the handle frame, and the other end of the keel frame is provided with a connecting piece connecting the two support rods.

5. A telescopic dust-blocking device with a keel as described in claim 4, characterized in that, The fixed bracket has a U-shaped structure, and the keel frame passes through the symmetrical ends of the fixed bracket.

6. A telescopic dust-blocking device with a keel as described in claim 5, characterized in that, The dust cover also has a cover that partially covers the keel frame.

7. A telescopic dust-blocking device with a keel as described in claim 1, characterized in that, The handle frame includes a base plate, a handle plate, and an impedance plate that are fixedly connected in sequence to the dust cover. The handle plate has a protruding handle portion and a hand-held hole.

8. A telescopic dust-blocking device with a keel as described in claim 7, characterized in that, The impedance plate has a U-shaped structure, with its two symmetrical ends facing the direction of movement of the dust hood.

9. A telescopic dust-blocking device with a keel as described in claim 7, characterized in that, The handle has an arched structure, and the hand-held hole is square.

10. A telescopic dust-blocking device with a keel as described in claim 4, characterized in that, The fixed bracket is equipped with pads through which the keel frame passes.

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