Novel impact hole saw

Abstract

The utility model provides a novel impact hole saw, which relates to the technical field of hole saws and comprises a hole saw body. The hole saw body is provided with a component bearing rod in the vertical direction, a regular hexagonal rod is arranged at the top of the component bearing rod, an anti-disengaging ring groove is formed in the upper portion of the regular hexagonal rod of the component bearing rod, a threaded rod is arranged on the bottom end face of the regular hexagonal rod of the component bearing rod, and a bearing cylinder is arranged on the bottom end face of the threaded rod of the component bearing rod. Vertically-through insertion holes are formed in the left side and the right side of a bearing cylinder of the component bearing rod, a threaded column is arranged in the center of the end face of the bottom of the bearing cylinder of the component bearing rod, the positioning drill bit rod can be conveniently inserted into the component bearing rod to synchronously rotate, and a drill bit anti-disengaging column can be conveniently inserted into an anti-disengaging annular groove of the positioning drill bit rod to prevent the positioning drill bit rod from disengaging; the problems that a drill bit of a hole saw is fixed through a bolt in a jacking mode, the drill bit is prone to disengaging and falling off due to bolt loosening, an anti-disengaging structure is inconvenient to arrange on the drill bit, and the bolt is inserted into the anti-disengaging structure for disengaging prevention are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hole saws, and in particular relates to a novel impact hole saw. Background Art

[0002] A hole saw, also known as a hole saw or impact hole saw, is a drilling tool used to drill holes in materials such as bricks, blocks and lightweight walls. It combines rotary cutting with a mechanism that relies on the operator's thrust to generate impact force. This not only has the function of rotary cutting, but also generates additional impact force through the impact mechanism, thereby providing greater power and efficiency during the drilling process. It is widely used in fields such as construction and decoration.

[0003] Based on the above, the inventors have found that the existing impact hole saws have the following deficiencies:

[0004] 1. The drill bit of the hole saw is fixed by bolts. It is easy for the drill bit to fall out due to loose bolts. It is inconvenient to set an anti-falling structure on the drill bit to prevent the bolt from being inserted into the anti-falling structure.

[0005] 2. The anti-rotation cylinder of the hole saw cannot move with the locking cylinder, resulting in the need to manually push the anti-rotation cylinder to move after the locking cylinder moves. It is inconvenient to add connection measures between the anti-rotation cylinder and the locking cylinder for follow-up. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a new impact hole saw to solve the problem that the drill bit of the existing hole saw is fixed by bolts, and the drill bit is easily dislodged and dropped due to loosening of the bolts, and it is inconvenient to set an anti-slip structure on the drill bit to insert the bolts into the anti-slip structure to prevent it from slipping off; the anti-rotating cylinder of the hole saw cannot move with the locking cylinder, resulting in the need to manually push the anti-rotating cylinder to move after the locking cylinder moves, and it is inconvenient to install connection measures between the anti-rotating cylinder and the locking cylinder for follow-up.

[0007] The purpose and effect of the impact hole saw of the present utility model are achieved by the following specific technical means:

[0008] A novel impact hole saw comprises a hole saw body; the hole saw body is provided with a component carrying rod in the upper and lower directions, a regular hexagonal rod is provided on the top of the component carrying rod, an anti-slip ring groove is provided on the upper part of the regular hexagonal rod of the component carrying rod, a threaded rod is provided on the bottom end face of the regular hexagonal rod of the component carrying rod, a carrying cylinder is provided on the bottom end face of the threaded rod of the component carrying rod, insertion holes penetrating up and down are provided on both sides of the carrying cylinder of the component carrying rod, a threaded column is provided at the center of the bottom end face of the carrying cylinder of the component carrying rod, and a regular hexagonal blind hole is provided on the bottom end face of the threaded column of the component carrying rod. A threaded hole running through the front and back is provided on the front wall of the regular hexagonal blind hole of the component carrying rod, a positioning drill rod is inserted into the regular hexagonal blind hole of the component carrying rod in the up and down directions, a spiral drill rod is provided at the lower part of the positioning drill rod, a regular hexagonal rod is provided on the top end face of the spiral drill rod of the positioning drill rod, an anti-slip ring groove is provided on the upper part of the regular hexagonal rod of the positioning drill rod, a drill anti-slip column is installed in the threaded hole of the component carrying rod in the front and back directions, the outer circumference of the drill anti-slip column is provided with a thread, the front end face of the drill anti-slip column is provided with a regular hexagonal groove, and the rear end face of the drill anti-slip column is provided with a inferior arc spherical surface.

[0009] Furthermore, a movable anti-rotation cylinder is installed in the upper and lower directions on the bearing ring groove of the rotating locking cylinder through a bearing, a bearing ring groove is opened on the inner circumference of the top of the movable anti-rotation cylinder, and anti-rotation rods are provided on both sides of the left and right sides of the bottom end face of the movable anti-rotation cylinder.

[0010] Furthermore, an annular array of anti-slip grooves is provided on the outer circumference of the rotary locking cylinder, and a bearing ring groove is provided on the outer circumference of the bottom of the rotary locking cylinder.

[0011] Furthermore, a rotation locking cylinder in the up and down directions is installed on the threaded rod of the component carrying rod through a thread, and a thread is provided on the inner circumference of the rotation locking cylinder.

[0012] Furthermore, a threaded hole running through the top and bottom is provided in the center of the top wall of the cylindrical hole saw, four anti-rotation holes running through the top and bottom are provided in a circular array outside the threaded hole of the cylindrical hole saw, and four strip holes running through the top and bottom are provided in a circular array on the wall of the cylindrical hole saw.

[0013] Furthermore, a cylindrical hole saw is installed in the upper and lower directions through a threaded column of the component carrying rod, and a circular array of cutting teeth is provided on the bottom end surface of the cylindrical hole saw.

[0014] Furthermore, the bottom of the regular hexagonal rod of the positioning drill bit rod is covered with an impact reset spring in the up and down directions. The impact reset spring is a truncated cone structure as a whole. A contact ring is provided at the bottom of the impact reset spring and an anti-slip ring is provided at the top of the impact reset spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The drill bit rod is conveniently inserted into the bearing rod of the positioning component for synchronous rotation, and the drill bit anti-falling column is conveniently inserted into the anti-falling ring groove of the positioning drill bit rod to prevent the positioning drill bit rod from falling off. This solves the problem that the drill bit of the hole saw is fixed by bolts, and the drill bit is easily fallen off due to loosening of the bolts, and it is inconvenient to set an anti-falling structure on the drill bit to insert the bolt into the anti-falling structure to prevent it from falling off.

[0017] The movable anti-rotation cylinder is installed on the rotating locking cylinder through a bearing, and the rotating locking cylinder drives the movable anti-rotation cylinder to move synchronously through the bearing, which solves the problem that the anti-rotation cylinder of the hole saw cannot move with the locking cylinder, resulting in the need to manually push the anti-rotation cylinder to move after the locking cylinder moves, and it is inconvenient to add connection measures between the anti-rotation cylinder and the locking cylinder for follow-up. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main structural diagram of the present utility model.

[0019] Figure 2 It is a schematic diagram of the structure of the utility model when viewed from above.

[0020] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0021] Figure 4 It is a schematic diagram of the disassembly structure of the utility model.

[0022] Figure 5 It is a schematic diagram of the lifting of the movable anti-rotation drum of the utility model.

[0023] Figure 6 It is a schematic diagram of the assembly of the load-bearing rod and the positioning drill rod of the utility model.

[0024] In the figure: 1. Hole saw body; 2. Component carrying rod; 3. Positioning drill bit rod; 4. Drill bit anti-drop column; 5. Impact return spring; 6. Cylindrical hole saw; 7. Rotation locking cylinder; 8. Moving anti-rotation cylinder. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples.

[0026] Example 1:

[0027] As attached Figure 1 To the attached Figure 6 As shown:

[0028] The utility model provides a new impact hole saw, including a hole saw body 1; the hole saw body 1 is provided with a component carrying rod 2 in the upper and lower directions, which is convenient for carrying various components, and a regular hexagonal rod is provided on the top of the component carrying rod 2, which is convenient for inserting a power device for synchronous rotation, and an anti-slip ring groove is provided on the upper part of the regular hexagonal rod of the component carrying rod 2, which is convenient for inserting a bolt for anti-slipping, and a threaded rod is provided on the bottom end face of the regular hexagonal rod of the component carrying rod 2, which is convenient for rotating the locking cylinder 7 to be installed through threads, and a bearing cylinder is provided on the bottom end face of the threaded rod of the component carrying rod 2, which is convenient for carrying various components, and the bearing cylinder of the component carrying rod 2 is provided with insertion holes running through it from top to bottom on both sides, which is convenient for inserting the anti-rotation rod of the moving anti-rotation cylinder 8 into the interior, and a threaded column is provided in the center of the bottom end face of the bearing cylinder of the component carrying rod 2, which is convenient for installing the cylindrical hole saw 6 through threads, and a regular hexagonal blind hole is provided on the bottom end face of the threaded column of the component carrying rod 2, which is convenient for inserting the positioning drill rod 3 into the interior for synchronous rotation, and the component carrying rod 2 A threaded hole is provided on the front wall of the regular hexagonal blind hole to facilitate the installation of the drill anti-slip column 4 through the thread. The regular hexagonal blind hole of the component carrier rod 2 is inserted with a positioning drill rod 3 in the upper and lower directions to facilitate synchronous rotation. The lower part of the positioning drill rod 3 is provided with a spiral drill rod to facilitate drilling positioning. The top end face of the spiral drill rod of the positioning drill rod 3 is provided with a regular hexagonal rod to facilitate the insertion of the regular hexagonal blind hole of the component carrier rod 2 and the synchronous rotation. The upper part of the regular hexagonal rod of the positioning drill rod 3 is provided with a There is an anti-slip ring groove, which is convenient for inserting the drill anti-slip column 4 to prevent the positioning drill bit rod 3 from slipping off. The drill anti-slip column 4 is installed in the front and rear directions of the threaded hole of the component carrying rod 2 to prevent the positioning drill bit rod 3 from slipping off. The outer circumference of the drill anti-slip column 4 is provided with a thread, which is convenient for disassembly and assembly through the thread. The front end surface of the drill anti-slip column 4 is provided with a regular hexagonal groove, which is convenient for rotation and disassembly by tools. The rear end surface of the drill anti-slip column 4 is provided with a inferior arc spherical surface, which is convenient for insertion into the anti-slip ring groove of the positioning drill bit rod 3.

[0029] Among them, the outer bottom of the regular hexagonal rod of the positioning drill bit rod 3 is covered with an impact return spring 5 in the upper and lower directions, which is convenient for resetting the downward impact. The impact return spring 5 is a truncated cone structure as a whole, which is convenient for force rebound reset. A contact ring is provided at the bottom of the impact return spring 5, which is convenient for contact with the object to be drilled. An anti-slip ring is provided on the top of the impact return spring 5, which is convenient for sleeved on the outer bottom of the regular hexagonal rod of the positioning drill bit rod 3 to prevent slipping. A cylindrical hole saw 6 in the upper and lower directions is installed on the threaded column of the component carrying rod 2 through a thread, which is convenient for cutting the object to be drilled. A cutting tooth is provided in an annular array on the bottom end face of the cylindrical hole saw 6 for convenience of cutting. A threaded hole is provided in the center of the top wall of the cylindrical hole saw 6 to pass through it, which is convenient for installing the threaded column of the component carrying rod 2. Four anti-rotation holes are provided in an annular array outside the threaded hole of the cylindrical hole saw 6 to pass through it, which is convenient for inserting the anti-rotation rod of the movable anti-rotation cylinder 8. Four strip holes in the upper and lower directions are provided in an annular array on the wall of the cylindrical hole saw 6 The left and right sides of the bottom end surface of the movable stop cylinder 8 are provided with upper and lower direction stop rods, which are convenient for inserting into the insertion hole of the component carrying rod 2 and the inside of the stop hole of the cylindrical hole saw 6, so as to prevent the cylindrical hole saw 6 from rotating and loosening.

[0030] The specific usage and function of this embodiment are as follows:

[0031] In the present utility model, Figure 3 As shown, at this time, the rear end of the drill bit anti-falling column 4 is inserted into the anti-falling ring groove of the positioning drill bit rod 3, thereby preventing the positioning drill bit rod 3 from easily falling out of the regular hexagonal blind hole of the component carrying rod 2, solving the problem that the positioning drill bit rod 3 is easy to fall out due to loosening by simply tightening; Figure 1 As shown, when the cylindrical hole saw 6 is disassembled, the rotating locking cylinder 7 is rotated to engage with the component carrying rod 2, so that the rotating locking cylinder 7 is raised through the threaded engagement, and the rotating locking cylinder 7 drives the moving anti-rotation cylinder 8 to rise synchronously through the bearing, so that the moving anti-rotation cylinder 8 does not need to be manually pushed and moved, which facilitates the rapid rotation stop and release of the cylindrical hole saw 6. Figure 5As shown, the anti-rotation rod of the movable anti-rotation cylinder 8 is raised and disengaged from the anti-rotation hole of the cylindrical hole saw 6, thereby releasing the anti-rotation cylinder 8 from the anti-rotation of the cylindrical hole saw 6, and then the cylindrical hole saw 6 is rotated to engage with the component carrier rod 2 threadedly, so that the cylindrical hole saw 6 is lowered through the threaded engagement and disengaged from the threaded column of the component carrier rod 2, thereby realizing the disassembly of the cylindrical hole saw 6.

[0032] Example 2:

[0033] The difference from Example 1 is that the regular hexagonal groove of the drill bit anti-detachment column 4 can also be set as a regular heptagonal groove, so that the drill bit anti-detachment column 4 can only be rotated by a special tool that cooperates with the regular heptagonal groove, preventing non-staff from rotating and disassembling the drill bit anti-detachment column 4.

[0034] Example 3:

[0035] The difference from Example 1 is that the inferior arc spherical surface of the drill bit anti-detachment column 4 can also be set to a frosted surface, thereby increasing the friction between the inferior arc spherical surface of the drill bit anti-detachment column 4 and the positioning drill bit rod 3, preventing the drill bit anti-detachment column 4 from rotating and loosening.

Claims

1. A new impact hole saw, characterized by: The invention comprises a hole saw body (1); the hole saw body (1) is provided with a component bearing rod (2); a regular hexagonal rod is provided on the top of the component bearing rod (2); an anti-dropping ring groove is provided on the upper part of the regular hexagonal rod of the component bearing rod (2); a threaded rod is provided on the bottom end face of the regular hexagonal rod of the component bearing rod (2); a bearing cylinder is provided on the bottom end face of the threaded rod of the component bearing rod (2); insertion holes are provided on both sides of the bearing cylinder of the component bearing rod (2) and run through from top to bottom; a threaded column is provided at the center of the bottom end face of the bearing cylinder of the component bearing rod (2); a regular hexagonal blind hole is provided on the bottom end face of the threaded column of the component bearing rod (2); A threaded hole is provided on the front wall of the regular hexagonal blind hole of the component supporting rod (2), a positioning drill rod (3) is inserted into the regular hexagonal blind hole of the component supporting rod (2), a spiral drill rod is provided at the lower part of the positioning drill rod (3), a regular hexagonal rod is provided on the top end face of the spiral drill rod of the positioning drill rod (3), an anti-slip ring groove is provided on the upper part of the regular hexagonal rod of the positioning drill rod (3), a drill anti-slip column (4) is installed in the threaded hole of the component supporting rod (2), a thread is provided on the outer circumference of the drill anti-slip column (4), a regular hexagonal groove is provided on the front end face of the drill anti-slip column (4), and a bad arc spherical surface is provided on the rear end face of the drill anti-slip column (4).

2. A novel impact hole saw according to claim 1, characterized in that: The bottom of the regular hexagonal rod of the positioning drill bit rod (3) is covered with an impact reset spring (5) on the outside. The impact reset spring (5) is a truncated cone structure as a whole. A contact ring is provided at the bottom of the impact reset spring (5), and an anti-slip ring is provided at the top of the impact reset spring (5).

3. A novel impact hole saw according to claim 1, characterized in that: A cylindrical hole saw (6) is threadedly mounted on the threaded column of the component carrying rod (2), and a circular array of cutting teeth is provided on the bottom end surface of the cylindrical hole saw (6).

4. A novel impact hole saw as claimed in claim 3, characterized in that: The center of the top wall of the cylindrical hole saw (6) is provided with a threaded hole that passes through the top and bottom, and a circular array of four anti-rotation holes that pass through the top and bottom are provided in the outer periphery of the threaded hole of the cylindrical hole saw (6), and a circular array of four strip holes in the top and bottom directions are provided in the wall of the cylindrical hole saw (6).

5. A novel impact hole saw as claimed in claim 3, characterized in that: A rotation locking cylinder (7) is installed on the threaded rod of the component carrying rod (2) through a thread, and the inner circumference of the rotation locking cylinder (7) is provided with a thread.

6. A novel impact hole saw according to claim 5, characterized in that: The outer circumference of the rotation locking cylinder (7) is provided with an annular array of anti-slip grooves, and the outer circumference of the bottom of the rotation locking cylinder (7) is provided with a bearing ring groove.

7. A novel impact hole saw as claimed in claim 6, characterized in that: A movable anti-rotation cylinder (8) is mounted on the bearing ring groove of the rotating locking cylinder (7) via a bearing, a bearing ring groove is provided on the inner circumference of the top of the movable anti-rotation cylinder (8), and anti-rotation rods in the upper and lower directions are provided on both left and right sides of the bottom end surface of the movable anti-rotation cylinder (8).

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