Woodworking hole opener with dustproof function

Abstract

The utility model relates to the technical field of woodworking tools, specifically relates to a woodworking trepanning device with dustproof function, including the connecting rod main part, the drill bit of setting in the connecting rod main part top, the TCT hole saw of configuration installation on the connecting rod main part and the extension assembly of setting in the connecting rod main part bottom, still include: the dust cover of configuration installation on the connecting rod main part, the counterbore subassembly of configuration installation behind the TCT hole saw, the counterbore subassembly is by the counterbore cutter head, the cutting knife of fixed mounting on the counterbore cutter head, the counterbore sword and the guide wheel of rotation mounting in the counterbore cutter head end part constitute. The utility model overcomes the deficiency of prior art, can obstruct the dust and the chippings generated in the dust cover inside when carrying out the trepanning operation through the dust cover, the cutting knife on the counterbore cutter head can cut the trepanning face, and cooperate the counterbore sword and carry out the reaming, the guide wheel can play the role of orientation and spacing when processing the counterbore.

Description

Technical Field

[0001] This utility model relates to the field of woodworking tools technology, specifically a woodworking hole opener with dustproof function. Background Technology

[0002] In woodworking, drilling is a common process. Traditional woodworking hole saws produce a lot of sawdust and dust when drilling. This sawdust and dust not only pollute the working environment, affect the operator's vision, and reduce work efficiency, but also cause serious harm to the operator's health if they inhale this dust for a long time, such as causing respiratory diseases.

[0003] Although woodworking hole saws have undergone some design improvements, these improvements mainly focus on increasing drilling accuracy and efficiency, while optimization for dustproof functions is relatively insufficient. In addition, existing hole saws can usually only drill on a single level, which may cause the product installed in the hole to protrude partially, thus affecting the overall installation effect and making it less than satisfactory.

[0004] To address the aforementioned technical problems, a woodworking hole opener with dustproof function is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a woodworking hole opener with dustproof function, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a woodworking hole saw with dustproof function, comprising a connecting rod body, a drill bit disposed at the top of the connecting rod body, a TCT hole saw mounted on the connecting rod body, and an extension assembly disposed at the bottom of the connecting rod body, and further comprising:

[0007] Dust cover, configured and installed on the main body of the extension pole;

[0008] Countersunk hole assembly, configured and installed behind the TCT hole saw;

[0009] The countersinking assembly consists of a countersinking cutter head, a cutting blade fixedly mounted on the countersinking cutter head, a countersinking cutter, and a guide wheel rotatably mounted on the end of the countersinking cutter head.

[0010] The dust cover can block debris and dust generated during the drilling operation. The added countersink cutter head can cut the drilling surface with its cutting blade and expand the hole in conjunction with the countersink cutter. The guide wheel can guide and limit the hole during the countersinking process.

[0011] As a preferred technical solution of this utility model, the dust cover has an installation hole on its axis that is compatible with the connecting rod body, and the dust cover and the connecting rod body are concentrically arranged.

[0012] As a preferred embodiment of this utility model, the upper half of the connecting rod body is threaded with a nut, and a movable piece is sleeved on the outer side of the connecting rod body above the nut, with a pair of pins connected to the movable piece.

[0013] As a preferred embodiment of this utility model, both the countersunk cutter head and the TCT hole saw have positioning holes that match the pins.

[0014] As a preferred embodiment of this utility model, the extension assembly includes a connecting rod extension rod that is threadedly connected to the bottom end of the connecting rod body, a nut threadedly installed at the bottom end of the connecting rod extension rod, and a spring sleeved on the outside of the connecting rod extension rod.

[0015] As a preferred embodiment of this utility model, the outer diameter of the nut is larger than the inner diameter of the mounting hole on the dust cover.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The dust cover can block debris and dust generated during the drilling operation. The added countersink cutter head can cut the drilling surface with its cutting blade and expand the hole in conjunction with the countersink cutter. The guide wheel can guide and limit the hole during the countersinking process. Attached Figure Description

[0018] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0019] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0020] Figure 3 This is a partial cross-sectional perspective view of the present invention;

[0021] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of point A in the middle;

[0022] Figure 5 For the present utility model Figure 1 A magnified view of a portion of point B in the middle.

[0023] In the diagram: 1. Main body of the extension rod; 2. Extension rod of the extension rod; 3. Claw nut; 4. Spring; 5. Dust cover; 6. Nut; 7. Movable piece; 8. Pin; 9. Countersinking cutter head; 901. Cutting knife; 902. Countersinking cutter; 903. Guide wheel; 10. TCT hole saw; 11. Drill bit. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 A woodworking hole saw with dustproof function includes a connecting rod body 1, a drill bit 11 disposed at the top of the connecting rod body 1, a TCT hole saw 10 disposed on the connecting rod body 1, and an extension assembly disposed at the bottom of the connecting rod body 1, and further includes:

[0026] Dust cover 5 is configured and installed on the main body 1 of the connecting rod;

[0027] The countersink assembly is configured and installed behind the TCT hole saw 10;

[0028] The countersinking assembly consists of a countersinking cutter head 9, a cutting blade 901 fixedly mounted on the countersinking cutter head 9, a countersinking cutter 902, and a guide wheel 903 rotatably mounted on the end of the countersinking cutter head 9.

[0029] The dust cover 5 can block the debris and dust generated during the drilling operation. At the same time, the countersinking cutter disc 9 can cut the drilling surface with the cutting blade 901 and enlarge the hole with the countersinking cutter 902. The guide wheel 903 can guide and limit the hole when processing the countersink.

[0030] Specifically, the dust cover 5 has an installation hole on its axis that matches the connecting rod body 1, and the dust cover 5 and the connecting rod body 1 are concentrically set.

[0031] Specifically, the upper half of the connecting rod body 1 is threaded with a nut 6, and a movable piece 7 is sleeved on the outer side of the connecting rod body 1 above the nut 6. A pair of pins 8 are connected to the movable piece 7.

[0032] Specifically, both the countersunk cutter head 9 and the TCT hole saw 10 have positioning holes that match the pin 8.

[0033] Specifically, the extension assembly includes a connecting rod extension rod 2 that is threaded to the bottom end of the connecting rod body 1, a nut 3 threaded onto the bottom end of the connecting rod extension rod 2, and a spring 4 sleeved on the outside of the connecting rod extension rod 2.

[0034] Specifically, the outer diameter of nut 6 is larger than the inner diameter of the mounting hole on dust cover 5.

[0035] Working principle: The dust cover 5 can block the debris and dust generated during the drilling operation. At the same time, the countersinking cutter disc 9 can cut the drilling surface with the cutting blade 901 and expand the hole with the countersinking cutter 902. The guide wheel 903 can guide and limit the hole during the countersinking process.

[0036] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 woodworking hole saw with dustproof function, comprising a connecting rod body (1), a drill bit (11) disposed at the top of the connecting rod body (1), a TCT hole saw (10) mounted on the connecting rod body (1), and an extension assembly disposed at the bottom of the connecting rod body (1), characterized in that: Also includes: Dust cover (5) is installed on the main body (1) of the connecting rod; Countersunk hole assembly, configured to be installed behind the TCT hole saw (10); The countersink assembly consists of a countersink cutter head (9) and a cutting blade fixedly mounted on the countersink cutter head (9). It consists of (901), countersinking cutter (902) and guide wheel (903) rotatably mounted on the end of countersinking cutter disc (9).

2. A woodworking hole saw with dustproof function according to claim 1, characterized in that: The dust cover (5) has an installation hole on its axis that is compatible with the connecting rod body (1), and the dust cover (5) and the connecting rod body (1) are concentrically arranged.

3. A woodworking hole saw with dustproof function according to claim 1, characterized in that: The upper half of the connecting rod body (1) is threaded with a nut (6), and a movable piece (7) is sleeved on the outside of the connecting rod body (1) above the nut (6). A pair of pins (8) are connected to the movable piece (7).

4. A woodworking hole saw with dustproof function according to claim 1, characterized in that: Both the countersink cutter head (9) and the TCT hole saw (10) have positioning holes that match the pins (8).

5. A woodworking hole saw with dustproof function according to claim 1, characterized in that: The extension assembly includes a connecting rod extension rod (2) threaded to the bottom end of the connecting rod body (1), a ram's nut (3) threaded onto the bottom end of the connecting rod extension rod (2), and a spring (4) sleeved on the outside of the connecting rod extension rod (2).

6. A woodworking hole saw with dustproof function according to claim 3, characterized in that: The outer diameter of the nut (6) is larger than the inner diameter of the mounting hole on the dust cover (5).

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