Automatic dust collection connecting piece for drilling and dimpling

Abstract

The invention discloses an automatic dust collection connecting piece for drilling and dimpling, relates to the field of separation, and aims to realize dust collection operation while drilling and dimpling operation is carried out by one person and improve the dust collection effect. According to the technical scheme, the automatic dust collection connecting piece for drilling and dimpling comprises a dust collection cover, a drill rod guide sleeve and a negative pressure pipe, the dust collection cover, the drill rod guide sleeve and the negative pressure pipe are each in a pipe shape with the two ends open, the drill rod guide sleeve is detachably connected to the interior of the dust collection cover, and a connecting hole is formed in the pipe wall of the dust collection cover; one end of the negative pressure pipe is connected to the connecting hole of the dust hood, and the other end is used for being connected with a dust collector capable of generating negative pressure. A drill bit of the pneumatic drill is inserted into the drill rod guide sleeve, and dust and chippings generated during drilling enter the industrial dust collector through the negative pressure pipe. And the drill rod guide sleeve is detached and replaced by the depth limiter of the dimple drill, so that dimple dust collection can be realized. The synchronous dust collection device is used for synchronous dust collection when a single person makes a hole and synchronous dust collection when the single person dimples.

Description

Technical Field

[0001] The invention relates to the field of separation, in particular to a connecting piece used for cooperating with an air drill and an industrial vacuum cleaner to perform dust collection operations during hole making and countersinking operations. Background Art

[0002] As a commonly used pneumatic tool, air drills are widely used in operations such as drilling and countersinking. Both drilling and countersinking will generate a large amount of dust and debris, which not only affects the line of sight, but may also cause damage to the workers' respiratory system. At present, independent industrial vacuum cleaners are generally used to suck away the dust generated by hole making. In order to ensure the quality of hole making, two people are required to cooperate, one to make holes and the other to vacuum synchronously. The operation of countersinking is similar to that of drilling. The air drill and the industrial vacuum cleaner are used independently, which requires workers to switch frequently, which is inconvenient and inefficient to operate; in addition, the dust suction pipe of the industrial vacuum cleaner sucks dust in an open environment, which poses the risk of dust and drifting, and does not fully meet the requirements of safe production. Summary of the invention

[0003] The invention provides an automatic dust suction connection piece for drilling and countersinking, aiming to enable a person to perform dust suction operation while performing drilling and countersinking operation, and to improve the dust suction effect.

[0004] The technical solution adopted by the present invention is: an automatic dust suction connector for hole making and countersinking, including a dust suction hood, a drill rod guide sleeve and a negative pressure tube. The dust suction hood, the drill rod guide sleeve and the negative pressure tube are all tubular with openings at both ends. The two ends of the dust suction hood are respectively a drilling end and a dust suction end, and the two ends of the drill rod guide sleeve are respectively a drilling end and a drilling outlet end. The drill rod guide sleeve is detachably connected to the inside of the dust suction hood, and the drilling end of the drill rod guide sleeve corresponds to the drilling end of the dust suction hood; a connecting hole is provided on the tube wall of the dust suction hood, one end of the negative pressure tube is connected to the connecting hole of the dust suction hood, and the negative pressure tube is located outside the dust suction hood, and the annular cavity between the inner wall of the dust suction hood and the outer wall of the drill rod guide sleeve is connected to the tube cavity of the negative pressure tube.

[0005] In order to facilitate the installation and disassembly of the drill rod guide sleeve inside the dust hood, the dust hood is further provided with a necked section, the inner wall of the necked section is provided with an internal thread, the drilling end of the drill rod guide sleeve is provided with an adaptive external thread, and the drill rod guide sleeve is threadedly connected to the necked section of the dust hood.

[0006] The automatic dust suction connector for hole making and countersinking can cooperate with the depth limiter of the existing countersinking drill to realize dust suction while countersinking, or it can be equipped with a depth limiter. Further, the automatic dust suction connector for hole making and countersinking also includes a depth limiter, which can be detachably connected to the inside of the dust hood, and the connection structure between the depth limiter and the dust hood is the same as the connection structure between the drill rod guide sleeve and the dust hood.

[0007] In order to prevent the air pressure in the annular cavity between the inner wall of the dust hood and the drill rod guide sleeve from being too low relative to the atmospheric pressure during dust collection, further: the tube wall of the dust hood is provided with an air pressure balance hole, and the annular cavity between the inner wall of the dust hood and the outer wall of the drill rod guide sleeve is connected to the air pressure balance hole.

[0008] In order to further improve the dust suction effect of the dust suction end of the dust suction hood, further: the dust suction end of the dust suction hood is connected to a dust blocking hood, and the dust blocking hood is made of a soft material. For example, the dust blocking hood is open and the material of the dust blocking hood is rubber.

[0009] The drill rod guide sleeve is used to insert the drill bit for drilling holes. In order to facilitate the diffusion of debris generated by drilling holes, further: the side wall of the drill outlet end of the drill rod guide sleeve is provided with side holes and / or notches. For example, the side wall of the drill outlet end of the drill rod guide sleeve is provided with two side holes and two notches, the line connecting the centers of the two side holes passes through the center line of the drill rod guide sleeve, and the line connecting the centers of the two notches also passes through the center line of the drill rod guide sleeve, and the side holes and the notches are arranged alternately.

[0010] In order to facilitate observation of whether the inside of the dust hood is clogged, further: the dust hood is made of a transparent material.

[0011] In order to facilitate the connection between the negative pressure tube and the dust hood, further: the connection hole of the dust hood is a threaded hole, one end of the negative pressure tube is provided with an adaptive external thread, and the dust hood and the negative pressure tube are threadedly connected.

[0012] In order to facilitate the drilling and countersinking operations, further: the center line of the dust hood coincides with the center line of the drill rod guide sleeve, and the center line of the negative pressure tube is perpendicular to the center line of the dust hood.

[0013] The beneficial effects of the present invention are as follows: before drilling, the drill bit of the air drill is inserted into the drilling end of the drill rod guide sleeve, the front end of the drill bit is passed through the drilling end, the negative pressure tube is connected to the industrial vacuum cleaner, the dust suction end of the dust hood is directly fitted to the part that needs to be drilled, or the dust hood is fitted to the part that needs to be drilled, and the hole can be drilled. The dust and debris generated by drilling are located in the annular cavity between the inner wall of the dust hood and the outer wall of the drill rod guide sleeve, and enter the industrial vacuum cleaner through the negative pressure tube. The drill rod guide sleeve in the automatic dust suction connector for drilling and countersinking is disassembled and replaced with a depth limiter for countersinking drill, which can be used for countersinking dust suction. The dust and debris generated by countersinking are also located in the annular cavity between the inner wall of the dust hood and the drill rod guide sleeve, and enter the industrial vacuum cleaner through the negative pressure tube. The present invention has a simple structure and can realize the hole making and dust removal operations as well as countersinking and dust removal operations by a single person, which not only saves manpower but also eliminates the need to frequently deal with the collected dust, thereby helping to improve work efficiency; the dust suction end or the dust blocking hood of the dust hood can fit tightly with the parts that need to be holed, thereby avoiding the problem of dust and debris generated by hole making and countersinking being scattered and splashed at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the automatic dust suction connection piece for hole making and countersinking of the present invention.

[0015] Figure numerals: dust cover 1, annular cavity 1-1, air pressure balance hole 1-2, drill rod guide sleeve 2, side hole 2-1, notch 2-2, negative pressure tube 3, dust cover 4. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] like Figure 1 As shown, the automatic dust suction connector for hole making and countersinking of the present invention comprises a dust suction hood 1, a drill rod guide sleeve 2 and a negative pressure tube 3. The dust suction hood 1, the drill rod guide sleeve 2 and the negative pressure tube 3 are all tubular with openings at both ends. The two ends of the dust suction hood 1 are respectively a drilling end and a dust suction end, and the dust suction end is used to fit with the parts that need to be drilled and countersunk. The two ends of the drill rod guide sleeve 2 are respectively a drilling end and a drilling end, and the drill bit is inserted from the drilling end and passes through the drilling end. One end of the negative pressure tube 3 is used to be connected to the dust suction hood 1, and the other end of the negative pressure tube 3 is used to be connected to a vacuum cleaner that can generate negative pressure, and the vacuum cleaner that can generate negative pressure is generally an industrial vacuum cleaner.

[0018] The drill rod guide sleeve 2 is detachably connected to the inside of the dust hood 1, and the drilling end of the drill rod guide sleeve 2 corresponds to the drilling end of the dust hood 1, that is, the drilling end of the drill rod guide sleeve 2 and the drilling end of the dust hood 1 are located at the same end, and the drilling outlet end of the drill rod guide sleeve 2 and the dust suction end of the dust hood 1 are located at the same end. The drill rod guide sleeve 2 is detachably connected to the inside of the dust hood 1, which means that the drill rod guide sleeve 2 can be fixed to the inside of the dust hood 1 and can be removed from the inside of the dust hood 1. In order to facilitate the installation and removal of the drill rod guide sleeve 2 inside the dust hood 1, as Figure 1 As shown, the dust hood 1 is provided with a necking section, the inner wall of the necking section is provided with an internal thread, the drilling end of the drill rod guide sleeve 2 is provided with an adapted external thread, and the drill rod guide sleeve 2 is threadedly connected to the inside of the necking section of the dust hood 1. An annular cavity 1-1 is formed between the inner wall of the dust hood 1 and the outer wall of the drill rod guide sleeve 2, and the annular cavity 1-1 is located between the necking section and the dust suction end of the dust hood 1. In order to facilitate drilling and countersinking operations, the center line of the drill rod guide sleeve 2 coincides with the center line of the dust hood 1.

[0019] The tube wall of the dust hood 1 is provided with a connection hole, which is connected to the annular cavity 1-1. One end of the negative pressure tube 3 is connected to the connection hole of the dust hood 1, and the negative pressure tube 3 is located outside the dust hood 1, and the annular cavity 1-1 is connected to the tube cavity of the negative pressure tube 3. The negative pressure tube 3 can be fixedly connected to the connection hole of the dust hood 1, or the dust hood 1 and the negative pressure tube 3 are an integral whole. For example, see Figure 1The connection hole of the dust hood 1 is a threaded hole, and one end of the negative pressure pipe 3 is provided with an adapted external thread, and the dust hood 1 and the negative pressure pipe 3 are threadedly connected. The end of the negative pressure pipe 3 away from the dust hood 1 is used to connect to a vacuum cleaner that can generate negative pressure. The negative pressure pipe 3 is preferably disassembled and connected to the connection hole of the dust hood 1, and the negative pressure pipe 3 is of various specifications, and the ends of the negative pressure pipes 3 of various specifications connected to the dust hood 1 are the same, and the pipe diameters of the other ends are different to fit different industrial vacuum cleaner pipe diameters. In order to facilitate drilling and countersinking operations, the center line of the negative pressure pipe 3 is perpendicular to the center line of the dust hood 1.

[0020] Before drilling, insert the drill bit of the air drill into the drilling end of the drill rod guide sleeve 2, and let the front end of the drill bit pass through the drilling end. Connect the negative pressure pipe 3 to the industrial vacuum cleaner, and directly fit the dust suction end of the dust hood 1 to the part that needs to be drilled, and then drill the hole. The dust and debris generated by drilling are located in the annular cavity 1-1, and the industrial vacuum cleaner generates negative pressure. The negative pressure pipe 3 and the annular cavity 1-1 are both negative pressure, and the air, dust and debris enter the industrial vacuum cleaner through the negative pressure pipe 3. In order to improve the fit and sealing of the dust hood 1 and the parts that need to be drilled, to adapt to working surfaces of various curvatures, to ensure sealing, and to improve the dust suction effect of the dust suction end of the dust hood 1, the dust suction end of the dust hood 1 is connected to a dust hood 4, and the dust hood 4 is made of a soft material. For example, the dust hood 4 is open, and the material of the dust hood 4 is rubber. In order to facilitate observation of the situation in the annular cavity 1-1, especially to observe whether the inside of the dust hood 1 is blocked, the dust hood 1 is preferably made of a transparent material. In order to facilitate the operation of hole making and dust collection, the center line of the dust hood 1 coincides with the center line of the drill rod guide sleeve 2. The air pressure in the annular cavity 1-1 between the inner wall of the dust hood 1 and the drill rod guide sleeve 2 is too low relative to the atmospheric pressure. The tube wall of the dust hood 1 is provided with an air pressure balance hole 1-2, and the air pressure balance hole 1-2 is connected to the annular cavity 1-1. Since the inside of the annular cavity 1-1 is negative pressure during dust collection, the air pressure balance hole 1-2 can make the pressure in the annular cavity 1-1 close to the atmospheric pressure, and make the pressure in the annular cavity 1-1 consistent with the atmospheric pressure after the dust collection is completed. The negative pressure generated by the industrial vacuum cleaner will ensure that dust and aluminum chips will not leak out from the air pressure balance hole 1-2.

[0021] The drill guide sleeve 2 is used to insert the drill bit for drilling holes. In order to facilitate the diffusion of debris generated by drilling holes, the side wall of the drill outlet end of the drill guide sleeve 2 is provided with a side hole 2-1 and / or a notch 2-2. Figure 1 The side wall of the drill pipe guide sleeve 2 is provided with two side holes 2-1 and two notches 2-2. The line connecting the centers of the two side holes 2-1 passes through the center line of the drill pipe guide sleeve 2, and the line connecting the centers of the two notches 2-2 also passes through the center line of the drill pipe guide sleeve 2. The side holes 2-1 and the notches 2-2 are arranged alternately.

[0022] Before countersinking, it is necessary to take out the drill rod guide sleeve 2 from the dust hood 1, and install the depth limiter of the countersink drill at the position where the drill rod guide sleeve 2 is installed inside the dust hood 1. The present invention can achieve dust collection while countersinking by cooperating with the depth limiter of the existing countersink drill, that is, the automatic dust collection connector for hole making and countersinking does not contain a depth limiter. The present invention can also be equipped with a depth limiter, which can be detachably connected to the inside of the dust hood 1, and the connection structure between the depth limiter and the dust hood 1 is the same as the connection structure between the drill rod guide sleeve 2 and the dust hood 1. The dust and debris generated by countersinking are located in the annular cavity 1-1, and the industrial vacuum cleaner generates negative pressure. The negative pressure pipe 3 and the annular cavity 1-1 are both negative pressure, and the air, dust and debris enter the industrial vacuum cleaner through the negative pressure pipe 3.

Claims

1. Automatic dust suction connector for hole making and countersinking, characterized by: The invention comprises a dust hood (1), a drill rod guide sleeve (2) and a negative pressure tube (3); the dust hood (1), the drill rod guide sleeve (2) and the negative pressure tube (3) are all in the shape of tubes with openings at both ends; the two ends of the dust hood (1) are respectively a drilling end and a dust suction end; the two ends of the drill rod guide sleeve (2) are respectively a drilling end and a drilling exit end; the drill rod guide sleeve (2) is detachably connected to the inside of the dust hood (1); the drilling end of the drill rod guide sleeve (2) corresponds to the drilling end of the dust hood (1); a connecting hole is provided on the tube wall of the dust hood (1); one end of the negative pressure tube (3) is connected to the connecting hole of the dust hood (1); the negative pressure tube (3) is located outside the dust hood (1); and an annular cavity (1-1) between the inner wall of the dust hood (1) and the outer wall of the drill rod guide sleeve (2) is connected to the tube cavity of the negative pressure tube (3).

2. The automatic dust suction connector for hole making and countersinking according to claim 1, characterized in that: The dust hood (1) is provided with a necked section, the inner wall of the necked section is provided with an internal thread, the drilling end of the drill rod guide sleeve (2) is provided with an adapted external thread, and the drill rod guide sleeve (2) is threadedly connected to the necked section of the dust hood (1).

3. The automatic dust suction connector for hole making and countersinking according to claim 1, characterized in that: It also comprises a depth stopper which can be detachably connected to the inside of the dust hood (1), and the connection structure between the depth stopper and the dust hood (1) is the same as the connection structure between the drill rod guide sleeve (2) and the dust hood (1).

4. The automatic dust suction connector for hole making and countersinking according to claim 1, characterized in that: The tube wall of the dust hood (1) is provided with an air pressure balance hole (1-2), and the annular cavity (1-1) between the inner wall of the dust hood (1) and the outer wall of the drill rod guide sleeve (2) is communicated with the air pressure balance hole (1-2).

5. The automatic dust suction connector for hole making and countersinking according to claim 1, characterized in that: The dust suction end of the dust suction hood (1) is connected to a dust blocking hood (4), and the dust blocking hood (4) is made of a soft material.

6. The automatic dust suction connector for hole making and countersinking according to claim 1, characterized in that: The side wall of the drill outlet end of the drill rod guide sleeve (2) is provided with a side hole (2-1) and / or a notch (2-2).

7. The automatic dust suction connector for hole making and countersinking according to claim 6, characterized in that: The side wall of the drill pipe guide sleeve (2) at the drill outlet end is provided with two side holes (2-1) and two notches (2-2); a line connecting the centers of the two side holes (2-1) passes through the center line of the drill pipe guide sleeve (2); a line connecting the centers of the two notches (2-2) also passes through the center line of the drill pipe guide sleeve (2); and the side holes (2-1) and the notches (2-2) are arranged alternately.

8. The automatic dust suction connector for hole making and countersinking according to any one of claims 1 to 7, characterized in that: The dust suction hood (1) is made of a transparent material. The dust suction end of the dust suction hood (1) is connected to a dust blocking hood (4). The dust blocking hood (4) is open and is made of rubber.

9. The automatic dust suction connector for hole making and countersinking according to any one of claims 1 to 7, characterized in that: The connection hole of the dust hood (1) is a threaded hole, one end of the negative pressure pipe (3) is provided with an adaptable external thread, and the dust hood (1) and the negative pressure pipe (3) are threadedly connected.

10. The automatic dust suction connector for hole making and countersinking according to any one of claims 1 to 7, characterized in that: The center line of the dust hood (1) coincides with the center line of the drill rod guide sleeve (2), and the center line of the negative pressure pipe (3) is perpendicular to the center line of the dust hood (1).

Images