Local exhaust hood in drilling process

Abstract

The utility model discloses a local exhaust hood in the drilling process. The local exhaust hood comprises a housing, the top of the housing is communicated with a second telescopic pipe, the top of the second telescopic pipe is communicated with a positioning ring, the top of the positioning ring is communicated with a first telescopic pipe, and the top of the first telescopic pipe is communicated with a transmission pipe; and the telescopic angle changing assembly is installed on the left side of the second telescopic pipe, the telescopic angle changing assembly comprises a fixing ring, the left side of the fixing ring is fixedly connected with a storage sleeve, and a first vertical rod and a second vertical rod are installed in an inner cavity of the storage sleeve in a penetrating mode. The local exhaust hood has the advantage of being flexible in angle changing, and solves the problems that an existing local exhaust hood does not have the bending angle changing function, the exhaust direction and position of the local exhaust hood are different due to different drilling machining requirements, drilling machining is easily hindered by simple vertical height adjustment, and the exhaust dust removal effect can be affected by the fact that the local exhaust hood is too far away from a machined part.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, specifically to a local exhaust hood during the drilling process. Background Technology

[0002] Drilling is a common machining method used to create cylindrical holes in solid materials. It is applied to metal sheets, plastic sheets, resin sheets, or ceramic sheets. Local exhaust hoods are key components of local exhaust systems. Their main function is to capture and expel harmful substances to prevent them from spreading into the room. They are widely used in the drilling process.

[0003] Existing local exhaust hoods generally adopt a telescopic design to flexibly adjust the air intake position, but they often lack the function of bending and changing angles. Due to different drilling processing requirements, their exhaust direction and position also vary. Simple up and down height adjustment can easily obstruct drilling processing, while being too far away from the workpiece will affect the exhaust and dust removal effect, which has certain limitations. Utility Model Content

[0004] The purpose of this utility model is to provide a local exhaust hood for the drilling process, which has the advantage of flexible angle adjustment. This solves the problem that the existing local exhaust hoods do not have the function of bending and angle adjustment. Due to different drilling processing requirements, the exhaust direction and position also vary. Simple up and down height adjustment can easily hinder the drilling process, while being too far away from the workpiece will affect the exhaust and dust removal effect, which has certain limiting problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a local exhaust hood during the drilling process, comprising:

[0006] A housing, the top of which is connected to a second telescopic tube, the top of which is connected to a positioning ring, the top of which is connected to a first telescopic tube, and the top of which is connected to a transmission tube.

[0007] A telescopic angle-changing assembly is installed on the left side of a second telescopic tube. The telescopic angle-changing assembly includes a fixing ring, and a storage sleeve is fixedly connected to the left side of the fixing ring. A first vertical rod and a second vertical rod are respectively installed through the inner cavity of the storage sleeve. A first protrusion is fixedly connected to the bottom of the first vertical rod, and a first positioning sleeve is fixedly connected to the left side of the outer ring of the first protrusion. A second protrusion is fixedly connected to the top of the second vertical rod, and a second positioning sleeve is fixedly connected to the outer ring of the second protrusion. A pin is installed through the second positioning sleeve and the first positioning sleeve. An anti-slip block and a rotating plate are respectively provided on the surface of the storage sleeve. A short block is fixedly connected to the center of the surface of the rotating plate, and an anti-slip arc groove is formed at the center of the outer side of the anti-slip block.

[0008] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, the number of the fixing ring and the storage sleeve are both two, and the connection between the fixing ring and the second telescopic tube and the connection between the fixing ring and the cover are fixedly connected.

[0009] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, the connection between the first vertical rod and the storage sleeve and the connection between the second vertical rod and the storage sleeve are in sliding contact, and there are two second protrusions, with the first protrusion located between the two second protrusions.

[0010] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, a pin is installed through the center of the surface of the first protrusion and the second protrusion, and the front end of the pin is threaded with an anti-loosening bolt.

[0011] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, the rear end of the pin slides through the second positioning sleeve and the first positioning sleeve, the outer ring of the storage sleeve is provided with a groove, and the anti-slip block is located in the groove and slides in contact with the groove.

[0012] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, the outer ring of the storage sleeve is fixedly connected to a fixed base, and a guide rod is slidably installed through the surface of the fixed base.

[0013] As a preferred embodiment of the local ventilation hood in the drilling process of this utility model, one end of the guide rod is fixedly connected to the surface of the anti-slip block, a spring is sleeved on the surface of the guide rod, one end of the spring is fixedly connected to the surface of the fixed seat, and the other end of the spring is fixedly connected to the surface of the anti-slip block.

[0014] As a preferred embodiment of the local exhaust hood in the drilling process of this utility model, the outer ring of the storage sleeve is fixedly connected to a positioning frame, one end of the positioning frame passes through the rotating plate and is movably connected to the rotating plate, and both ends of the rotating plate and the short block are arc-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by setting a first telescopic tube, a positioning ring and a second telescopic tube, can extend and retract up and down by the positioning ring and the second telescopic tube, thereby changing the height of the cover and meeting various air-induced dust removal needs. The dust generated by drilling is sequentially transmitted and discharged through the cover, the second telescopic tube, the positioning ring, the first telescopic tube and the transmission tube.

[0017] 2. By setting up a telescopic angle-changing component, this utility model allows the first and second vertical rods to slide within the storage sleeve during the telescopic movement of the positioning ring and the second telescopic tube, ensuring the stability of the telescopic adjustment. Then, the rotating plate is placed into the anti-slip arc groove, so that the anti-slip block is in close contact with the first or second vertical rod, ensuring the stability of the position of the first and second vertical rods. It can also drive the second vertical rod to rotate and adjust the angle of the cover. Finally, the displacement pin passes through the first and second positioning sleeves, ensuring the stability of the cover's tilt angle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the structure of this utility model;

[0020] Figure 3 This is a side perspective view of the telescopic angle-changing component of this utility model;

[0021] Figure 4 This is a perspective view of a partial structure of the telescopic angle-changing component of this utility model when separated.

[0022] Figure 5 This is a partial sectional perspective view of the telescopic angle-changing component of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged diagram of A in the middle.

[0024] In the diagram: 1. Cover; 2. Transmission pipe; 3. First telescopic pipe; 4. Positioning ring; 5. Second telescopic pipe; 6. Telescopic angle-changing assembly; 601. Fixing ring; 602. Storage sleeve; 603. First protrusion; 604. Rotating plate; 605. First vertical rod; 606. Pin; 607. First positioning sleeve; 608. Groove; 609. Anti-loosening bolt; 610. Second vertical rod; 611. Second protrusion; 612. Second positioning sleeve; 613. Pin; 614. Spring; 615. Short block; 616. Fixing seat; 617. Guide rod; 618. Anti-slip block; 619. Positioning frame; 620. Anti-slip arc groove. Detailed Implementation

[0025] Please see Figures 1-6 A localized ventilation hood for drilling processes includes a housing 1. A second telescopic pipe 5 is connected to the top of the housing 1. A positioning ring 4 is connected to the top of the second telescopic pipe 5. A first telescopic pipe 3 is connected to the top of the positioning ring 4. A transmission pipe 2 is connected to the top of the first telescopic pipe 3. The housing 1 can be flexibly moved up and down according to the actual dust extraction and ventilation requirements during drilling. The height of the housing 1 can be flexibly adjusted by the extension and retraction of the first telescopic pipe 3 and the second telescopic pipe 5.

[0026] Furthermore, it also includes a telescopic angle-changing assembly 6, which is installed on the left side of the second telescopic tube 5. The telescopic angle-changing assembly 6 includes a fixing ring 601, and a storage sleeve 602 is fixedly connected to the left side of the fixing ring 601. A first vertical rod 605 and a second vertical rod 610 are respectively installed through the inner cavity of the storage sleeve 602. A first protrusion 603 is fixedly connected to the bottom of the first vertical rod 605. A first positioning sleeve 607 is fixedly connected to the left side of the outer ring of the first protrusion 603. A second protrusion 611 is fixedly connected to the top of the second vertical rod 610. A second positioning sleeve 612 is fixedly connected to the outer ring of the second protrusion 611. A pin 606 is installed through the second positioning sleeve 612 and the first positioning sleeve 607. An anti-slip block 618 and a rotating plate 604 are respectively provided on the surface of the storage sleeve 602. A short block 615 is fixedly connected to the center of the surface of the rotating plate 604. An anti-slip arc groove 620 is opened at the center of the outer side of the anti-slip block 618.

[0027] Furthermore, there are two of each of the fixing ring 601 and the storage sleeve 602. The fixing ring 601 is fixedly connected to the second telescopic tube 5 and to the cover 1.

[0028] Furthermore, the connection between the first vertical rod 605 and the storage sleeve 602, and the connection between the second vertical rod 610 and the storage sleeve 602, are in sliding contact. There are two second protrusions 611, and the first protrusion 603 is located between the two second protrusions 611.

[0029] Furthermore, a pin 613 is installed through the center of the surface of the first protrusion 603 and the second protrusion 611, and the front end of the pin 613 is threaded with an anti-loosening bolt 609.

[0030] Furthermore, the rear end of the pin 606 slides through the second positioning sleeve 612 and the first positioning sleeve 607, and the outer ring of the storage sleeve 602 is provided with a groove 608, and the anti-slip block 618 is located in the groove 608 and slides in contact with the groove 608.

[0031] Furthermore, the outer ring of the storage sleeve 602 is fixedly connected to a fixing seat 616, and a guide rod 617 is slidably installed through the surface of the fixing seat 616.

[0032] Furthermore, one end of the guide rod 617 is fixedly connected to the surface of the anti-slip block 618, and a spring 614 is sleeved on the surface of the guide rod 617. One end of the spring 614 is fixedly connected to the surface of the fixed base 616, and the other end of the spring 614 is fixedly connected to the surface of the anti-slip block 618.

[0033] Furthermore, a positioning frame 619 is fixedly connected to the outer ring of the storage sleeve 602. One end of the positioning frame 619 passes through the rotating plate 604 and is movably connected to the rotating plate 604. Both ends of the rotating plate 604 and the short block 615 are arc-shaped. During the height adjustment of the cover 1, as the first telescopic tube 3 and the second telescopic tube 5 extend and retract, the first vertical rod 605 and the second vertical rod 610 slide within the storage sleeve 602. After the height adjustment is completed, the rotating plate 604 is driven to rotate around the positioning frame 619, so that the arc end of the rotating plate 604 enters the anti-slip arc groove 620. The anti-slip block 618 is pressed against and makes close contact with the first vertical rod 605 or the second vertical rod 610. The spring 614 is stretched, thereby effectively increasing the height of the first vertical rod 605. The displacement of the second vertical rod 610 overcomes the frictional force, achieving the function of anti-slip protection. When it is necessary to change the angle of the cover 1, the cover 1 is driven to rotate, so that the second vertical rod 610 and the second protrusion 611 rotate around the pin 613 until the cover 1 is adjusted to a suitable angle, the second positioning sleeve 612 coincides with the first positioning sleeve 607, and the rearward pin 606 passes through the first positioning sleeve 607 and the second positioning sleeve 612, thereby ensuring the angle of the cover 1, which is flexibly applicable to various air suction and purification needs in drilling.

[0034] Specifically, by setting the first telescopic tube 3, the positioning ring 4, and the second telescopic tube 5, the height of the cover 1 can be changed flexibly by extending and retracting the first telescopic tube 3 and the second telescopic tube 5. By setting the transmission tube 2, it can be connected to the external air duct, thereby guiding and transmitting the dust and impurities generated during drilling. By setting the cover 1, the bottom air intake space can be expanded to ensure the overall dust removal range. By setting the fixing ring 601, it can be connected to the second telescopic tube 5 and the cover 1 respectively, and meets the fixed installation requirements of the storage sleeve 602. By setting the first vertical rod 605 and the second vertical rod... 610 allows for flexible vertical displacement to adjust the height of the cover 1. By setting the first protrusion 603, the second protrusion 611, and the pin 613, it serves a positioning function, positioning the first vertical rod 605 and the second vertical rod 610. By setting the rotating plate 604, the short block 615, and the anti-slip arc groove 620, when the rotating plate 604 contacts the anti-slip arc groove 620, the anti-slip block 618 automatically and tightly contacts the first vertical rod 605 or the second vertical rod 610, thus preventing the first vertical rod 605 or the second vertical rod 610 from shifting arbitrarily. When the short block 615 contacts the anti-slip groove 620, with the assistance of the spring 614, the anti-slip block 618 no longer contacts the first vertical rod 605 or the second vertical rod 610. By setting the pin 606, the first positioning sleeve 607 and the second positioning sleeve 612, the first protrusion 603 and the second protrusion 611 can be prevented from rotating arbitrarily when the pin 606 is inserted. By setting the groove 608, the displacement space requirement of the anti-slip block 618 can be met. By setting the anti-disengagement bolt 609, it can be threadedly connected to the pin 613, thus ensuring proper installation. In this state, the pin 613 can be effectively prevented from sliding and disengaging from the first protrusion 603 and the second protrusion 611. By setting the spring 614, the anti-slip block 618 can be elastically supported, thus preventing the anti-slip block 618 from shifting arbitrarily without external force. By setting the fixed seat 616 and the guide rod 617, the auxiliary guiding function can be played, which can effectively improve the displacement stability of the anti-slip block 618. By setting the positioning frame 619, the rotating plate 604 can be positioned and installed, so that the rotating plate 604 and the short block 615 can rotate around the positioning frame 619.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A local exhaust hood for use during drilling, characterized in that, include: Cover (1), the top of the cover (1) is connected to a second telescopic tube (5), the top of the second telescopic tube (5) is connected to a positioning ring (4), the top of the positioning ring (4) is connected to a first telescopic tube (3), and the top of the first telescopic tube (3) is connected to a transmission tube (2). A telescopic angle-changing assembly (6) is installed on the left side of the second telescopic tube (5). The telescopic angle-changing assembly (6) includes a fixing ring (601). A storage sleeve (602) is fixedly connected to the left side of the fixing ring (601). A first vertical rod (605) and a second vertical rod (610) are respectively installed through the inner cavity of the storage sleeve (602). A first protrusion (603) is fixedly connected to the bottom of the first vertical rod (605). A first positioning sleeve (607) is fixedly connected to the left side of the outer ring of the first protrusion (603). The top of the second vertical rod (610) is fixedly connected to a second protrusion (611), and the outer ring of the second protrusion (611) is fixedly connected to a second positioning sleeve (612). A pin (606) is installed through the second positioning sleeve (612) and the first positioning sleeve (607). The surface of the storage sleeve (602) is respectively provided with an anti-slip block (618) and a rotating plate (604). A short block (615) is fixedly connected to the center of the surface of the rotating plate (604). An anti-slip arc groove (620) is opened at the center of the outer side of the anti-slip block (618).

2. A local exhaust hood for drilling processes according to claim 1, characterized in that: The number of fixing rings (601) and storage sleeves (602) are both two. The fixing rings (601) are fixedly connected to the second telescopic tube (5) and to the cover (1).

3. A local exhaust hood for drilling processes according to claim 1, characterized in that: The connection between the first vertical rod (605) and the storage sleeve (602) and the connection between the second vertical rod (610) and the storage sleeve (602) are in sliding contact. There are two second protrusions (611), and the first protrusion (603) is located between the two second protrusions (611).

4. A local exhaust hood for drilling processes according to claim 1, characterized in that: A pin (613) is installed through the center of the surface of the first protrusion (603) and the second protrusion (611), and the front end of the pin (613) is threaded with an anti-loosening bolt (609).

5. A local exhaust hood for drilling processes according to claim 1, characterized in that: The rear end of the pin (606) slides through the second positioning sleeve (612) and the first positioning sleeve (607), and the outer ring of the storage sleeve (602) is provided with a groove (608). The anti-slip block (618) is located in the groove (608) and slides in contact with the groove (608).

6. A local exhaust hood for drilling processes according to claim 1, characterized in that: The outer ring of the storage sleeve (602) is fixedly connected to a fixing base (616), and a guide rod (617) is slidably installed through the surface of the fixing base (616).

7. A local exhaust hood for drilling processes according to claim 6, characterized in that: One end of the guide rod (617) is fixedly connected to the surface of the anti-slip block (618), and a spring (614) is sleeved on the surface of the guide rod (617). One end of the spring (614) is fixedly connected to the surface of the fixed seat (616), and the other end of the spring (614) is fixedly connected to the surface of the anti-slip block (618).

8. A local exhaust hood for drilling processes according to claim 1, characterized in that: The outer ring of the storage sleeve (602) is fixedly connected to a positioning frame (619). One end of the positioning frame (619) passes through the rotating plate (604) and is movably connected to the rotating plate (604). Both ends of the rotating plate (604) and the short block (615) are arc-shaped.

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