CN219818141U - Hole saw and extension rod integrated hole saw rear cover - Google Patents

Abstract

The utility model discloses a hole saw and extension rod integrated hole saw rear cover, which relates to the technical field of integrated hole saws and comprises the following components: hole saw, hole saw top fixedly connected with back lid, the inside center department of back lid is provided with the drill bit, the inside roof that is provided with of hole saw, the side hole has been seted up to the hole saw surface, the inside clamp splice that is provided with of back lid. According to the utility model, the rear cover is arranged, after the drill bit is placed, the drill bit is fixed by contacting the drill bit through the rotating screw, the positioning block is used for positioning the drill bit, so that the drill bit and the hole saw can be ensured to be at the same center point, the sleeve has the function of a connecting rod by adopting the rear cover with the long hole saw and drilling the positioning screw hole in the rear cover, and then the drill bit is arranged on the lengthened rear cover to transfer kinetic energy, so that the function of the hole saw sleeve is simply and completely realized, the cost is saved, the assembly and replacement time in use is saved, the use efficiency is improved, and the sleeve is particularly suitable for small and medium-sized hole saw series.

Description

Hole saw and extension rod integrated hole saw rear cover

Technical Field

The utility model relates to the technical field of integrated hole saws, in particular to a hole saw rear cover with an integrated hole saw and a connecting rod.

Background

Hole saws are extremely wide-ranging in use, which generally cut very hard materials, including hardened steel, cast iron, brick, etc., and are associated with shafts made of carbon steel and pilot drills; the existing hole saw is complex in design, the function of the hole saw rear cover cannot be achieved, the assembly and replacement time is long when the hole saw is used, and the working efficiency is reduced, so that the hole saw and connecting rod integrated hole saw rear cover is provided.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a hole saw and extension rod integrated hole saw rear cover, comprising: hole saw, hole saw top fixedly connected with back lid, the inside center department of back lid is provided with the drill bit, the inside roof that is provided with of hole saw, the sidehole has been seted up to the hole saw surface, the inside clamp splice that is provided with of back lid, back lid inner wall left side fixedly connected with locating piece, back lid right side is provided with the screw, is convenient for fix the drill bit through setting up the screw, convenient to detach drill bit simultaneously.

Further, the inside dead lever that is provided with of clamp splice, the dead lever left side is provided with the stopper, dead lever top and below are provided with the shell fragment, the dead lever outside is provided with spring one, is used for playing limiting role when moving the clamp splice through setting up the stopper.

Further, the opening has been seted up to the roof inside, the roof top is provided with the telescopic link, the telescopic link top runs through the back lid and extends to inside, telescopic link top and back lid fixed connection, telescopic link bottom and roof top fixed connection, roof top center department is provided with the spring two, is convenient for discharge the sweeps after the trompil through setting up the roof.

Further, clamp splice and back lid sliding connection, clamp splice surface and drill bit surface contact, dead lever one end runs through the clamp splice and extends to outside, dead lever right side and back lid inner wall fixed connection, dead lever and clamp splice sliding connection are used for playing certain positioning action to the drill bit through setting up the clamp splice, can make the drill bit install back and hole saw department same center.

Further, dead lever left side and stopper right side fixed connection, shell fragment one end and clamp splice inner wall fixed connection, the shell fragment other end and back lid inner wall fixed connection, spring one end and clamp splice inner wall fixed connection, spring one other end and back lid inner wall fixed connection can make the clamp splice hug closely the drill bit through setting up spring one and shell fragment, takes place to rock when avoiding the drill bit to install.

Further, spring two tops and hole saw inner wall top fixed connection, spring two bottoms and roof top fixed connection, the screw runs through the back lid and extends to outside, screw and back lid threaded connection are used for driving the roof through setting up spring two and move, be convenient for discharge the sweeps in the hole saw.

The utility model has the beneficial effects that:

according to the utility model, the rear cover is arranged, after the drill bit is placed, the rear cover is contacted with the drill bit by rotating the screw, the drill bit is fixed, the positioning block is used for positioning the drill bit, the drill bit and the hole saw can be ensured to be at the same center point, the sleeve has the function of a connecting rod by adopting the rear cover with the long hole saw and drilling the positioning screw hole in the rear cover, and then the drill bit is arranged on the lengthened rear cover to transmit kinetic energy, so that the design is simple, the function of the hole saw sleeve is completely realized, the cost is saved, the assembly and replacement time in use is saved, the use efficiency is improved, and the sleeve is particularly suitable for small and medium-sized hole saw series.

According to the hole saw, the top plate is arranged, the generated scraps can be discharged through the opening and the side holes in the using process of the hole saw, chip removal is facilitated, meanwhile, effective heat dissipation can be achieved, the top plate is pressed upwards in the process of punching, the second spring is extruded, after punching is completed, the top plate is driven to move downwards under the action of elasticity of the second spring to eject the scraps, and therefore the scraps can be taken out rapidly, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the right side cross-sectional structure of the rear cover of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is a schematic diagram of a front cross-sectional structure of the rear cover of the present utility model.

1. Hole saw; 11. a rear cover; 111. clamping blocks; 112. a fixed rod; 113. a limiting block; 114. a spring plate; 115. a first spring; 116. a positioning block; 117. a screw; 12. a drill bit; 13. a top plate; 131. an opening; 132. a telescopic rod; 133. a second spring; 14. and (5) a side hole.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description. The embodiments of the utility model have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1-4, the present utility model is a hole saw and extension bar integrated hole saw back cover comprising: the hole saw 1, hole saw 1 top fixedly connected with back lid 11, back lid 11 inside center department is provided with drill bit 12, hole saw 1 inside is provided with roof 13, hole saw 1 surface has seted up sidehole 14, back lid 11 inside is provided with clamp block 111, back lid 11 inner wall left side fixedly connected with locating piece 116, back lid 11 right side is provided with screw 117, through setting up back lid 11 and being when drill bit 12 is placed and accomplish the back, make it contact with drill bit 12 through rotating screw 117, fix drill bit 12, locating piece 116 is used for playing the positioning action to drill bit 12, can guarantee drill bit 12 and hole saw 1 at same central point, the stack is through adopting extension hole saw 1 back lid 11 and boring location screw on back lid 11, play the function of extension pole, install drill bit 12 on extension back lid 11 again, so the design is simple, and realize the function of hole saw 1 stack completely, the cost is saved, assembly and change time in the use has improved availability factor, be particularly suitable for small and medium-sized saw hole saw series.

The clamp block 111 is internally provided with a fixed rod 112, the left side of the fixed rod 112 is provided with a limiting block 113, the upper and lower sides of the fixed rod 112 are provided with elastic sheets 114, and the outside of the fixed rod 112 is provided with a first spring 115.

The opening 131 has been seted up to roof 13 inside, roof 13 top is provided with telescopic link 132, telescopic link 132 top runs through back lid 11 and extends to inside, telescopic link 132 top and back lid 11 fixed connection, telescopic link 132 bottom and roof 13 top fixed connection, roof 13 top center department is provided with spring two 133, through setting up roof 13 through in hole saw 1 use, the piece that produces can be discharged through opening 131 and sidehole 14, can carry out effectual heat dissipation when being convenient for the chip removal, and can upwards press roof 13 when the trompil, then spring two 133 is extrudeed, after accomplishing the trompil, can drive roof 13 downward movement and pop out the waste material through spring two 133 elastic effect down, take out the sweeps that can be quick, improve work efficiency.

The clamp block 111 is connected with the back cover 11 in a sliding way, the outer surface of the clamp block 111 is contacted with the outer surface of the drill bit 12, one end of the fixed rod 112 penetrates through the clamp block 111 and extends to the outside, the right side of the fixed rod 112 is fixedly connected with the inner wall of the back cover 11, and the fixed rod 112 is connected with the clamp block 111 in a sliding way.

The left side of the fixed rod 112 is fixedly connected with the right side of the limiting block 113, one end of the elastic sheet 114 is fixedly connected with the inner wall of the clamping block 111, the other end of the elastic sheet 114 is fixedly connected with the inner wall of the rear cover 11, one end of the first spring 115 is fixedly connected with the inner wall of the clamping block 111, and the other end of the first spring 115 is fixedly connected with the inner wall of the rear cover 11.

The top of the second spring 133 is fixedly connected with the top of the inner wall of the hole saw 1, the bottom of the second spring 133 is fixedly connected with the top of the top plate 13, the screw 117 penetrates through the rear cover 11 and extends to the outside, and the screw 117 is in threaded connection with the rear cover 11.

One specific application of this embodiment is:

when the drill bit 12 needs to be installed, insert it from hole saw 1 bottom, after drill bit 12 top and clamp splice 111 contact, because clamp splice 111 is the inclined plane setting, consequently can extrude clamp splice 111 to back lid 11 in, then spring one 115 and shell fragment 114 are extruded, clamp splice 111 slides on dead lever 112, can guarantee that clamp splice 111 is rectilinear movement, can hug closely drill bit 12 surface through shell fragment 114 and spring one 115 elastic effect can, can play the effect of central location after the drill bit 12 is installed, after drill bit 12 is placed and is accomplished, make it contact with drill bit 12 through rotation screw 117, fix drill bit 12, locating piece 116 is used for playing the locate action to drill bit 12, can guarantee that drill bit 12 and hole saw 1 are at same central point, when dismantling, loosen screw 117, with drill bit 12 downward pulling can take out, in hole 1 use, the in-process, the piece that produces can be through opening 131 and side hole 14 discharge, can carry out effective saw when being convenient for, and can upwards press roof 13, then be pressed upwards by two springs, can be popped out the waste material 133 through the effect of extrusion spring two, can improve the thermal efficiency, can be popped out down when the elasticity of the spring 13, the waste material 133 is accomplished, can be removed down after the hole removal is accomplished, the work is accomplished.

It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.

Claims (6)

1. A hole saw and extension bar integrated hole saw rear cover comprising: hole saw (1), lid (11) behind hole saw (1) top fixedly connected with, inside center department of lid (11) is provided with drill bit (12) behind, hole saw (1) inside is provided with roof (13), hole saw (1) surface has seted up sidehole (14), inside clamp splice (111) that are provided with of lid (11) behind, lid (11) inner wall left side fixedly connected with locating piece (116) behind, lid (11) right side is provided with screw (117) behind.

2. A hole saw and extension bar integrated hole saw rear cover as defined in claim 1, wherein: the clamping block is characterized in that a fixed rod (112) is arranged inside the clamping block (111), a limiting block (113) is arranged on the left side of the fixed rod (112), elastic sheets (114) are arranged above and below the fixed rod (112), and a first spring (115) is arranged outside the fixed rod (112).

3. A hole saw and extension bar integrated hole saw rear cover as defined in claim 2, wherein: the novel telescopic device is characterized in that an opening (131) is formed in the top plate (13), a telescopic rod (132) is arranged above the top plate (13), the top of the telescopic rod (132) penetrates through the rear cover (11) and extends to the inside, the top of the telescopic rod (132) is fixedly connected with the rear cover (11), the bottom of the telescopic rod (132) is fixedly connected with the top of the top plate (13), and a second spring (133) is arranged at the center of the upper part of the top plate (13).

4. A hole saw and extension bar integrated hole saw rear cover according to claim 3, wherein: the clamping block (111) is in sliding connection with the rear cover (11), the outer surface of the clamping block (111) is in contact with the outer surface of the drill bit (12), one end of the fixing rod (112) penetrates through the clamping block (111) and extends to the outside, the right side of the fixing rod (112) is fixedly connected with the inner wall of the rear cover (11), and the fixing rod (112) is in sliding connection with the clamping block (111).

5. A hole saw and extension bar integrated hole saw rear cover as defined in claim 4, wherein: the left side of dead lever (112) and stopper (113) right side fixed connection, shell fragment (114) one end and clamp splice (111) inner wall fixed connection, shell fragment (114) other end and back lid (11) inner wall fixed connection, spring one (115) one end and clamp splice (111) inner wall fixed connection, spring one (115) other end and back lid (11) inner wall fixed connection.

6. A hole saw and extension bar integrated hole saw rear cover according to claim 3, wherein: the top of the second spring (133) is fixedly connected with the top of the inner wall of the hole saw (1), the bottom of the second spring (133) is fixedly connected with the top of the top plate (13), the screw (117) penetrates through the rear cover (11) and extends to the outside, and the screw (117) is in threaded connection with the rear cover (11).