CN210125755U

CN210125755U - Twist drill for manual tapping

Info

Publication number: CN210125755U
Application number: CN201920863909.8U
Authority: CN
Inventors: 王宇宽
Original assignee: Nanjing Huazhe Machinery Technology Co Ltd
Current assignee: Nanjing Huazhe Machinery Technology Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-03-06
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a fluted drill for manual tapping, which comprises a handle, the middle-end fixedly connected with connecting rod of handle bottom, and the surface threaded connection of connecting rod has the thread bush, the first bracing piece of outside fixedly connected with of thread bush, and the outside fixedly connected with sleeve of first bracing piece bottom, telescopic internal surface threaded connection has fastening screw, and telescopic inner chamber has cup jointed the telescopic link, there is the second bracing piece bottom the telescopic link through bearing swing joint. The utility model discloses threaded connection has threaded sleeve at the surface of connecting rod to through the effect of first bracing piece, sleeve, fastening screw, telescopic link, bearing, second bracing piece and walking wheel, solved people when manual use fluted drill, the phenomenon that often appears the slope because of the focus is unstable takes place, thereby leads to the drilling angle to change, has not only increased people's the drilling degree of difficulty, has also reduced the problem of drilling quality simultaneously.

Description

Twist drill for manual tapping

Technical Field

The utility model relates to a fluted drill technical field specifically is a fluted drill for manual tapping.

Background

The twist drill is a tool for drilling round holes of workpieces through rotary cutting of the twist drill relative to a fixed axis, the twist drill is named as a twist because a chip groove of the twist drill is spiral, the twist drill can be clamped on a manual or electric handheld drilling tool or a drilling machine, a milling machine, a lathe or even a machining center for use, the drill bit is made of high-speed tool steel or hard alloy generally, but when the twist drill is used manually, the phenomenon of inclination often occurs due to unstable gravity center, so that the drilling angle is changed, the drilling difficulty of people is increased, and the drilling quality is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fluted drill for manual tapping possesses the advantage that can improve drilling stability, has solved people when manual use fluted drill, and the phenomenon that often appears inclining because of the focus is unstable takes place to lead to the drilling angle to change, not only increased people's the drilling degree of difficulty, also reduced the problem of drilling quality simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fluted drill for manual tapping, includes the handle, the middle-end fixedly connected with connecting rod of handle bottom, and the surface threaded connection of connecting rod has the thread bush, the first bracing piece of outside fixedly connected with of thread bush, and the outside fixedly connected with sleeve of first bracing piece bottom, telescopic internal surface threaded connection has fastening screw, and telescopic inner chamber has cup jointed the telescopic link, there is the second bracing piece bottom the telescopic link through bearing swing joint, and the bottom movable mounting of second bracing piece has the walking wheel.

Preferably, both ends all are connected with the rubber sleeve through PC glue about the handle surface, and the rubber sleeve includes the polyurethane rubber sleeve.

Preferably, the bottom of the connecting rod is fixedly connected with a clamping sleeve, and the inner surface of the clamping sleeve is clamped with a drill rod.

Preferably, the number of the first supporting rods is three to four, and the included angles between every two adjacent first supporting rods are the same.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model connects the threaded sleeve on the outer surface of the connecting rod through the screw thread, and rotates the threaded sleeve to the bottom of the connecting rod through the action of the first supporting rod, the sleeve, the fastening screw, the telescopic rod, the bearing, the second supporting rod and the walking wheel when people need to drill manually, then the distance of the telescopic rod is adjusted to ensure that the bottom of the travelling wheel is contacted with the surface of the object to be drilled and the telescopic rod is vertical to the surface of the object to be drilled, then in the process of rotating the handle, the connecting rod stably moves downwards under the action of the threaded sleeve and enables the drill rod to move towards the inside of the object under stress, thereby achieving the purpose of stable drilling, solving the problem that people often incline due to unstable gravity center when using the twist drill manually, therefore, the drilling angle is changed, the drilling difficulty of people is increased, and the drilling quality is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises a handle 1, a rubber sleeve 2, a connecting rod 3, a thread sleeve 4, a first supporting rod 5, a sleeve 6, a telescopic rod 7, a bearing 8, a walking wheel 9, a second supporting rod 10, a drill rod 11, a clamping sleeve 12 and a fastening screw 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The utility model discloses a handle 1, rubber sleeve 2, connecting rod 3, thread bush 4, first bracing piece 5, sleeve 6, telescopic link 7, bearing 8, walking wheel 9, second bracing piece 10, drilling rod 11, cutting ferrule 12 and fastening screw 13 part are the parts that general standard or technical staff in the field know, and its structure and principle all are that this technical staff all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1, a twist drill for manual tapping comprises a handle 1, wherein the left and right ends of the outer surface of the handle 1 are both connected with a rubber sleeve 2 through PC glue, the rubber sleeve 2 comprises a polyurethane rubber sleeve, friction between the rubber sleeve and a palm is increased, and stability of people in use is improved, the middle end of the bottom of the handle 1 is fixedly connected with a connecting rod 3, the bottom of the connecting rod 3 is fixedly connected with a cutting sleeve 12, a drill rod 11 is clamped on the inner surface of the cutting sleeve 12, the outer surface of the connecting rod 3 is in threaded connection with a threaded sleeve 4, the outer side of the threaded sleeve 4 is fixedly connected with a first support rod 5, the number of the first support rods 5 is three to four, included angles between every two adjacent first support rods 5 are the same, the outer side of the bottom of the first support rod 5 is fixedly connected with a sleeve 6, the inner surface of the sleeve 6 is in threaded connection with a fastening screw 13, people can sleeve a telescopic rod 7, and the inner cavity of the sleeve 6 is sleeved with a telescopic rod 7, the bottom of the telescopic rod 7 is movably connected with a second support rod 10 through a bearing 8, and the bottom of the second support rod 10 is movably provided with a walking wheel 9, when people need to drill manually, the threaded sleeve 4 is firstly rotated to the lowest part of the connecting rod 3, then the distance of the telescopic rod 7 is adjusted, so that the bottom of the walking wheel 9 is contacted with the surface of an object to be drilled, the telescopic rod 7 is vertical to the surface of the object to be drilled, then in the process of rotating the handle 1, the connecting rod 3 stably moves downwards under the action of the threaded sleeve 4, and the drill rod 11 is forced to move towards the inside of the object, thereby achieving the purpose of stably drilling, solving the problem that when people use the twist drill manually, the phenomenon of inclination often occurs due to unstable gravity center, thereby causing the change of the drilling angle, and not only increasing the drilling difficulty of, and simultaneously, the problem of drilling quality is also reduced.

When the twist drill is used, the outer surface of the connecting rod 3 is in threaded connection with the threaded sleeve 4, the threaded sleeve 4 is rotated to the lowest surface of the connecting rod 3 through the first supporting rod 5, the sleeve 6, the fastening screw 13, the telescopic rod 7, the bearing 8, the second supporting rod 10 and the walking wheel 9, when people need to perform manual drilling, the threaded sleeve 4 is rotated to the lowest surface of the connecting rod 3, then the distance of the telescopic rod 7 is adjusted, the bottom of the walking wheel 9 is in contact with the surface of an object to be drilled, the telescopic rod 7 is perpendicular to the surface of the object to be drilled, then the connecting rod 3 stably moves downwards under the action of the threaded sleeve 4 in the process of rotating the handle 1, the drill rod 11 is forced to move towards the inside of the object, the purpose of stable drilling is achieved, the problem that when people use the twist drill manually, the phenomenon that the center of gravity is inclined frequently caused is solved, the drilling angle is changed, and the, and simultaneously, the problem of drilling quality is also reduced.

In summary, the following steps: this a fluted drill for manual tapping, the surface threaded connection of connecting rod 3 has threaded sleeve 4, and through first bracing piece 5, sleeve 6, fastening screw 13, telescopic link 7, bearing 8, the effect of second bracing piece 10 and walking wheel 9, it takes place because of the unstable phenomenon that appears the slope of focus often to have solved people when manual use fluted drill, thereby lead to the drilling angle to change, not only increased people's the drilling degree of difficulty, the problem of drilling quality has also been reduced simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A twist drill for manual tapping, comprising a handle (1), characterized in that: handle (1) middle-end fixedly connected with connecting rod (3) of bottom, and the surface threaded connection of connecting rod (3) has thread bush (4), the first bracing piece of outside fixedly connected with (5) of thread bush (4), and outside fixedly connected with sleeve (6) of first bracing piece (5) bottom, the internal surface threaded connection of sleeve (6) has fastening screw (13), and the inner chamber of sleeve (6) has cup jointed telescopic link (7), there is second bracing piece (10) bottom of telescopic link (7) through bearing (8) swing joint, and the bottom movable mounting of second bracing piece (10) has walking wheel (9).

2. A twist drill for manual threading according to claim 1 wherein: both ends all are connected with rubber sleeve (2) through PC glue about handle (1) surface, and rubber sleeve (2) include the polyurethane rubber cover.

3. A twist drill for manual threading according to claim 1 wherein: the bottom of connecting rod (3) fixedly connected with cutting ferrule (12), and the internal surface joint of cutting ferrule (12) has drilling rod (11).

4. A twist drill for manual threading according to claim 1 wherein: the number of the first supporting rods (5) is three to four, and included angles between every two adjacent first supporting rods (5) are the same.