Quick stripping connecting rod of tapper

Abstract

The utility model belongs to the technical field of tapper stripping, and particularly relates to a tapper quick stripping connecting rod which comprises a stripping ejector rod. A limiting clamping groove is formed in the outer wall of the stripping ejector rod, a sleeve is slidably connected to the outer wall of the stripping ejector rod, a stripping structure is installed on the outer wall of the sleeve, a first external thread part is arranged on the outer wall of the left side of the sleeve, and the sleeve is in threaded connection with a fixing structure through the first external thread part. Through the design of a stripping ejector rod, a limiting clamping groove, a stripping structure and the like, the problems that an existing tapper is fixed to a center drill bit, and after drilling is completed, waste generated during drilling is located in the tapper, so that a user cannot take out the waste easily are solved, the working efficiency is improved, and the labor intensity of the user is lowered. And through the design of a fixing structure, the tapper is prevented from slipping in the drilling process, so that the punching effect of the tapper is better.

Description

Technical Field

[0001] The utility model relates to the technical field of blanking of hole openers, in particular to a quick blanking connecting rod for a hole opener. Background Technique

[0002] A hole opener, also known as a hole saw or a hole cutter, is a special circular saw tool for processing circular holes. The hole opener is usually used in conjunction with a connecting rod and can be used to cut circular holes, square holes, triangular holes and other shapes on various plates. The hole opener is installed on electric tools such as electric drills and impact drills through a connecting rod to improve the flexibility and convenience of operation.

[0003] The existing hole opener is fixed on the center drill bit. After drilling, the waste generated during drilling is inside the hole opener, making it difficult for the user to remove the waste, thus reducing the work efficiency. In view of the above problems, a quick blanking connecting rod for a hole opener is proposed. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, that is, the existing hole opener is fixed on the center drill bit. After drilling, the waste generated during drilling is inside the hole opener, making it difficult for the user to remove the waste, thus reducing the work efficiency, the utility model proposes a quick blanking connecting rod for a hole opener.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a quick blanking connecting rod for a hole opener, including a blanking ejector rod; a limiting card slot is opened on the outer wall of the blanking ejector rod, a sleeve is slidably connected to the outer wall of the blanking ejector rod, a blanking structure is installed on the outer wall of the sleeve, a first external thread portion is opened on the left outer wall of the sleeve, the sleeve is threadedly connected with a fixing structure through the first external thread portion, a second external thread portion is opened on the right outer wall of the sleeve, the sleeve is threadedly connected with a hole opener through the second external thread portion, and first through holes are correspondingly opened on the front and rear sides of the hole opener;

[0006] The blanking structure includes a connecting rod main body, a sliding groove is opened on the connecting rod main body, a spring is installed on the connecting rod main body through the sliding groove, a pressing column is arranged at the upper end of the spring, a sliding groove is opened on the pressing column corresponding to the blanking ejector rod, and a clamping block is installed on the lower side of the pressing column through the sliding groove;

[0007] The fixing structure includes a connecting ring, a limiting groove is opened on the outer wall of the connecting ring, a rotating ring is arranged at the left port of the connecting ring, clamping discs are slidably connected to the connecting ring through the limiting groove on the front and rear sides, a connecting shaft is installed on the clamping disc, and a limiting column is arranged at the right end of the connecting shaft.

[0008] Preferably, the inner wall of the connecting rod body is fixedly connected to the outer wall of the sleeve, and the connecting rod body is slidably connected to the pressing column through a sliding groove.

[0009] Preferably, a dust cover is slidably connected to the outer wall of the sleeve. A second through hole is correspondingly formed in the dust cover opposite the limiting column. The dust cover is provided with a "corrugated" structure, and the dust cover is soft and elastic in hardness.

[0010] Preferably, the right end of the limiting column passes through the second through hole and is connected to the hole opener. The apertures of the first through hole and the second through hole are the same. The first through hole and the second through hole are both adapted to the limiting column. The dust cover is arranged between the connecting rod body and the second external thread part.

[0011] Preferably, an installation hole is formed in the sleeve, and the lower end of the pressing column passes through the installation hole and is slidably connected to the sleeve.

[0012] Preferably, the sleeve is threadedly connected to the connecting ring through a first external thread part, and the pressing column is slidably connected to the stripping ejector rod through a sliding groove.

[0013] Preferably, the cross section of the stripping ejector rod is in the shape of a regular hexagon, and the width of the clamping block is the same as that of the limiting card slot.

[0014] Preferably, a limiting hole is formed in the connecting rod body corresponding to the limiting column. The right end of the limiting column passes through the limiting hole and is slidably connected to the connecting rod body. A drill bit is arranged at the right end of the stripping ejector rod, and the diameter of the drill bit is smaller than that of the stripping ejector rod.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. Through the designs of the stripping ejector rod, the limiting card slot, and the stripping structure, etc., the present utility model drives the pressing column downward along the sliding groove, so that the spring disengages from the limiting card slot, and then pulls the drill bit to the right. The drill bit drives the stripping ejector rod to push the waste material out of the hole opener, realizing the function of quickly discharging the waste material, solving the problem that the existing hole opener is fixed on the center drill bit, and when the drilling is completed, the waste material generated during drilling is inside the hole opener, making it difficult for the user to take out the waste material, thereby improving the work efficiency.

[0017] 2. Through the design of the fixing structure, the sleeve is threadedly connected to the hole opener. The rotating ring drives the connecting ring to rotate on the sleeve. The rotating ring pushes the chuck to the right and drives the limiting column into the first through hole through the transmission of the connecting shaft, locking the hole opener to prevent the hole opener from slipping during the drilling process, so that the drilling effect of the hole opener is better. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 Schematic diagram of the partial sectional structure of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional sectional structure of the present invention;

[0022] Figure 4 Schematic diagram of the partial disassembled structure of the present invention;

[0023] Figure 5 Schematic diagram of the fixing structure of the present invention;

[0024] Figure 6 Schematic diagram of the structure of the hole opener and the dust cover of the present invention.

[0025] In the figure: 1. Stripping ejector rod; 2. Limit card slot; 3. Sleeve; 4. Stripping structure; 401. Connecting rod main body; 402. Slide groove; 403. Spring; 404. Pressing column; 405. Sliding groove; 406. Block; 5. First external thread part; 6. Fixing structure; 601. Connecting ring; 602. Limit groove; 603. Rotating ring; 604. Chuck; 605. Connecting shaft; 606. Limit post; 7. Second external thread part; 8. Hole opener; 9. First through hole; 10. Dust cover; 11. Second through hole; 12. Mounting hole; 13. Limit hole; 14. Drill bit. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0027] The following will further describe the present application in detail Figures 1-6 with reference to the attached

[0028] The embodiment of the present application discloses a quick stripping connecting rod for a hole opener. Refer to Figure 1 andFigure 6 , A quick scrap-removing connecting rod for a hole opener, comprising a scrap-removing ejector rod 1; a limiting card slot 2 is formed on the outer wall of the scrap-removing ejector rod 1, a sleeve 3 is slidably connected to the outer wall of the scrap-removing ejector rod 1, a scrap-removing structure 4 is installed on the outer wall of the sleeve 3, a first external thread portion 5 is formed on the left outer wall of the sleeve 3, and the sleeve 3 is threadedly connected to a fixing structure 6 through the first external thread portion 5. A second external thread portion 7 is formed on the right outer wall of the sleeve 3, and the sleeve 3 is threadedly connected to a hole opener 8 through the second external thread portion 7. First through holes 9 are correspondingly formed on the front and back sides of the hole opener 8;

[0029] The scrap-removing structure 4 includes a connecting rod main body 401, a sliding groove 402 is formed on the connecting rod main body 401, a spring 403 is installed on the connecting rod main body 401 through the sliding groove 402, a pressing column 404 is arranged at the upper end of the spring 403, a sliding groove 405 corresponding to the scrap-removing ejector rod 1 is formed on the pressing column 404, and a clamping block 406 is installed on the lower side of the pressing column 404 through the sliding groove 405. Driving the pressing column 404 downward in the sliding groove 402 enables the spring 403 to disengage from the limiting card slot 2, and then pulling the drill bit 14 to the right. The drill bit 14 drives the scrap-removing ejector rod 1 to push the waste material out of the hole opener 8, realizing the function of quickly discharging the waste material, and solving the problem that the existing hole opener 8 is fixed on the center drill bit. After the drilling is completed, the waste material generated during drilling is inside the hole opener 8, making it difficult for the user to remove the waste material, thereby improving work efficiency;

[0030] The fixing structure 6 includes a connecting ring 601, a limiting groove 602 is formed on the outer wall of the connecting ring 601, a rotating ring 603 is arranged at the left port of the connecting ring 601, clamping discs 604 are slidably connected to the connecting ring 601 through the limiting groove 602 on the front and back sides, a connecting shaft 605 is installed on the clamping discs 604, a limiting column 606 is arranged at the right end of the connecting shaft 605, the sleeve 3 is threadedly connected to the hole opener 8, the rotating ring 603 drives the connecting ring 601 to rotate on the sleeve 3, the rotating ring 603 pushes the clamping discs 604 to the right, and drives the limiting column 606 to enter the first through hole 9 through the transmission of the connecting shaft 605, thereby clamping the hole opener 8 and preventing the hole opener 8 from slipping during the drilling process, so that the drilling effect of the hole opener 8 is better.

[0031] Refer to Figure 1 、 2 Figure 6, the inner wall of the connecting rod main body 401 is fixedly connected to the outer wall of the sleeve 3, and the connecting rod main body 401 is slidably connected to the pressing column 404 through the chute 402; a dust cover 10 is slidably connected to the outer wall of the sleeve 3, and a second through hole 11 is correspondingly opened on the dust cover 10 opposite to the limiting column 606. The dust cover 10 is arranged in a "corrugated" structure, and the dust cover 10 is soft and elastic in hardness; the right end of the limiting column 606 passes through the second through hole 11 and is connected to the hole opener 8. The apertures of the first through hole 9 and the second through hole 11 are the same, and both the first through hole 9 and the second through hole 11 are adapted to the limiting column 606. The dust cover 10 is arranged between the connecting rod main body 401 and the second external thread part 7;

[0032] Among them, a dust cover 10 is slidably connected to the outer wall of the sleeve 3. When the hole opener 8 drills a hole, the chips generated will be mixed into the air. The dust cover 10 can block the chips, prevent the chips from being mixed into the air, keep the air clean, and ensure the health of the staff;

[0033] Referring to the figure, an installation hole 12 is opened on the sleeve 3. The lower end of the pressing column 404 passes through the installation hole 12 and is slidably connected to the sleeve 3; the sleeve 3 is threadedly connected to the connecting ring 601 through the first external thread part 5, and the pressing column 404 is slidably connected to the stripping ejector rod 1 through the sliding groove 405; the cross section of the stripping ejector rod 1 is arranged as a regular hexagon, and the width of the clamping block 406 is the same as that of the limiting card slot 2;

[0034] Among them, the width of the clamping block 406 is the same as that of the limiting card slot 2, making the clamping connection between the clamping block 406 and the stripping ejector rod 1 more stable;

[0035] Referring to Figure 3 , a limiting hole 13 is correspondingly opened on the connecting rod main body 401 opposite to the limiting column 606. The right end of the limiting column 606 passes through the limiting hole 13 and is slidably connected to the connecting rod main body 401. A drill bit 14 is arranged at the right end of the stripping ejector rod 1, and the diameter of the drill bit 14 is smaller than that of the stripping ejector rod 1;

[0036] Among them, the diameter of the drill bit 14 is smaller than that of the stripping ejector rod 1, so that the stripping ejector rod 1 can eject the waste in the hole opener 8;

[0037] Working principle: After drilling is completed, the waste material is located inside the hole opener 8. At this time, the pressing column 404 is driven downward on the lower side of the chute 402. The pressing column 404 drives the clamping block 406 to move downward, so that the clamping block 406 disengages from the limit card slot 2. The user pulls the drill bit 14 to the right. The drill bit 14 drives the material discharging ejector rod 1 to move. The right end of the material discharging ejector rod 1 squeezes out the waste material in the hole opener 8, realizing the function of quickly discharging the waste material. Finally, the drill bit 14 pushes the material discharging ejector rod 1 back. When the limit card slot 2 moves above the clamping block 406, under the reset action of the spring 403, the spring 403 drives the clamping block 406 to snap into the limit card slot 2, thus restoring the fixing effect on the material discharging ejector rod 1. By setting the material discharging ejector rod 1, the limit card slot 2 and the material discharging structure 4, etc., the problem that the existing hole opener 8 is fixed on the center drill bit and when drilling is completed, the waste material generated during drilling is inside the hole opener 8, making it difficult for the user to take out the waste material is solved, thereby improving the work efficiency; The sleeve 3 is threadedly connected to the hole opener 8. The rotating ring 603 drives the connecting ring 601 to rotate on the first external thread portion 5 of the sleeve 3. The rotating ring 603 pushes the two chucks 604 to move to the right, and through the transmission of the connecting shaft 605, drives the limit post 606 to sequentially penetrate through the limit hole 13 and the second through hole 11, and finally enter the first through hole 9 to lock the hole opener 8, preventing the hole opener 8 from slipping during drilling, so that the drilling effect of the hole opener 8 is better.

[0038] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A quick stripping connecting rod for a hole opener, comprising a stripping ejector rod (1); characterized in that: A limit slot (2) is provided on the outer wall of the stripping push rod (1), a sleeve (3) is slidably connected to the outer wall of the stripping push rod (1), a stripping structure (4) is installed on the outer wall of the sleeve (3), a first external threaded portion (5) is provided on the left outer wall of the sleeve (3), the sleeve (3) is threadedly connected to a fixing structure (6) via the first external threaded portion (5), a second external threaded portion (7) is provided on the right outer wall of the sleeve (3), the sleeve (3) is threadedly connected to a hole opener (8) via the second external threaded portion (7), and first through holes (9) are provided on the hole opener (8) and are located on the front and rear sides thereof; The stripping structure (4) comprises a connecting rod body (401), a sliding groove (402) is provided on the connecting rod body (401), a spring (403) is installed on the connecting rod body (401) through the sliding groove (402), a pressing column (404) is provided at the upper end of the spring (403), a sliding groove (405) is provided on the pressing column (404) and corresponds to the stripping ejector rod (1), and a clamping block (406) is installed on the lower side of the pressing column (404) through the sliding groove (405); The fixing structure (6) comprises a connecting ring (601), a limiting groove (602) is provided on the outer wall of the connecting ring (601), a rotating ring (603) is provided at the left end of the connecting ring (601), the connecting ring (601) is slidably connected to a chuck (604) at the front and rear sides through the limiting groove (602), a connecting shaft (605) is installed on the chuck (604), and a limiting column (606) is provided at the right end of the connecting shaft (605).

2. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: The inner wall of the connecting rod body (401) is fixedly connected to the outer wall of the sleeve (3), and the connecting rod body (401) is slidably connected to the pressing column (404) via the sliding groove (402).

3. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: A dust cover (10) is slidably connected to the outer wall of the sleeve (3); a second through hole (11) is provided on the dust cover (10) and is located corresponding to the limiting column (606); the dust cover (10) is a "corrugated" structure; the dust cover (10) is soft and elastic.

4. The quick-release connecting rod for a hole opener according to claim 3, characterized in that: The right end of the limiting column (606) passes through the second through hole (11) and is connected to the hole opener (8); the first through hole (9) and the second through hole (11) have the same aperture; the first through hole (9) and the second through hole (11) are both adapted to the limiting column (606); and the dust cover (10) is disposed between the connecting rod body (401) and the second external threaded portion (7).

5. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: The sleeve (3) is provided with a mounting hole (12), and the lower end of the pressing column (404) passes through the mounting hole (12) and is slidably connected to the sleeve (3).

6. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: The sleeve (3) is threadedly connected to the connecting ring (601) via the first external threaded portion (5), and the pressing column (404) is slidably connected to the stripping ejector rod (1) via the sliding groove (405).

7. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: The cross section of the stripping ejector rod (1) is a parallelepiped, and the width of the clamping block (406) is the same as that of the limiting clamping slot (2).

8. The quick-release connecting rod for a hole opener according to claim 1, characterized in that: A limiting hole (13) is provided on the connecting rod body (401) and corresponds to the limiting column (606); the right end of the limiting column (606) passes through the limiting hole (13) and is slidably connected to the connecting rod body (401); and a drill bit (14) is provided at the right end of the stripping ejector rod (1); the diameter of the drill bit (14) is smaller than that of the stripping ejector rod (1).

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