Tapping electric drill with limiting function

Abstract

The utility model discloses a trepanning electric drill with a limit function, which comprises an electric drill component and a limit component, the limit component is positioned above the electric drill component, the limit component comprises an outer sleeve, an inner cavity, a reset spring, a limit plate, a front cover, a center line mark, a connecting rod, an outer ring, a middle ring, an inner ring, an outer groove, a middle groove, an inner groove and a fixture block, and the outer sleeve is n-shaped. Through the structure, the telescopic front cover is arranged at the front end of the electric drill, the drill bit is horizontally clamped below the front cover, in the drilling process, the drill bit can be limited, the drill bit is kept horizontal all the time, the stability of the drill bit and the perpendicularity of a drilled hole are improved, the outer ring, the middle ring and the inner ring can be matched with one another so as to be suitable for drill bits with different diameters, and the drilling efficiency is improved. And meanwhile, chippings generated in the drilling process can be blocked, the chippings are prevented from splashing upwards to the eyes of an operator, and the safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drills, in particular to a hole-opening electric drill with a limiting function. Background Technique

[0002] An electric drill is a drilling tool powered by electricity. It is a conventional product in electric tools and also the electric tool product with the largest demand. The working principle of an electric drill is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting work and rotation, drives the working device through a transmission mechanism, drives the gear to increase the power of the drill bit, so that the drill bit scrapes the surface of an object and better penetrates the object.

[0003] In the existing hole-opening electric drills, during the drilling process, the front end and the rear end of the drill bit are prone to tilt due to uneven force, which may further cause drilling deviation or drilling failure. Moreover, during the drilling process, debris splashes at the front end, which is very likely to cause harm to the eyes of the operator. Content of the Utility Model

[0004] The purpose of the utility model is to provide a hole-opening electric drill with a limiting function. A telescopic front cover is arranged at the front end of the electric drill, and the drill bit is horizontally clamped below the front cover. During the drilling process, the drill bit can be limited, so that the drill bit always remains horizontal, improving the stability of the drill bit and the perpendicularity of drilling. The outer ring, the middle ring and the inner ring can also cooperate with each other to be suitable for drill bits of different diameters, improving the flexibility of the electric drill. At the same time, the debris generated during the drilling process can be blocked to prevent the debris from splashing upwards into the eyes of the operator, improving the safety of the device.

[0005] To achieve the above purpose, a hole-opening electric drill with a limiting function is provided, including: an electric drill assembly and a limiting assembly. The limiting assembly is located above the electric drill assembly. The limiting assembly includes an outer sleeve, an inner cavity, a return spring, a limiting plate, a front cover, a center line mark, a connecting rod, an outer ring, a middle ring, an inner ring, an outer groove, a middle groove, an inner groove and a clamping block. The outer sleeve is in a "door" shape. An inner cavity is arranged inside the outer sleeve. A return spring is arranged inside the inner cavity. The rear end of the return spring is fixedly connected to the outer sleeve. The front end of the return spring is fixedly connected to a limiting plate. A front cover is fixedly connected to the front side wall of the limiting plate. The front cover is made of transparent tempered glass. A center line mark is fixedly connected to the top of the front cover. A connecting rod is fixedly connected below the front cover. The number of the connecting rods is three and they are evenly distributed below the front cover. An outer ring is fixedly connected between the three connecting rods. The middle ring is threadedly connected to the inner circumferential surface of the outer ring. The inner ring is threadedly connected to the inner circumferential surface of the middle ring. An outer groove is arranged on the outer ring. A middle groove is arranged on the middle ring. An inner groove is arranged on the inner ring. A clamping block is clamped in the outer groove, the middle groove and the inner groove.

[0006] According to an open-hole electric drill with a limiting function, the electric drill assembly includes a main handle, a main body, a front handle, a fixture and a drill bit. The top of the main handle is fixedly connected to the main body, the bottom of the main body is fixedly connected to the front handle, a fixture is fixedly connected to the front side wall of the main body, and a drill bit is clamped inside the fixture.

[0007] According to an open-hole electric drill with a limiting function, the bottom of the outer sleeve is fixedly connected to the main body.

[0008] According to an open-hole electric drill with a limiting function, the connecting rod, the outer ring, the middle ring and the inner ring are all located in front of the fixture.

[0009] According to an open-hole electric drill with a limiting function, the number of the return springs is set to three, and they are evenly distributed in the upper, left and right directions of the inner cavity.

[0010] According to an open-hole electric drill with a limiting function, the drill bit penetrates through the inner ring from front to back.

[0011] The beneficial effects of the above solution are as follows: By setting an outer sleeve, an inner cavity, a return spring, a limiting plate, a front cover, a center line mark, a connecting rod, an outer ring, a middle ring, an inner ring, an outer groove, a middle groove, an inner groove and a clamping block, a telescopic front cover is provided at the front end of the electric drill, and the drill bit is horizontally clamped below the front cover. During the drilling process, the drill bit can be limited, so that the drill bit always remains horizontal, improving the stability of the drill bit and the perpendicularity of the drilling. The outer ring, the middle ring and the inner ring can also cooperate with each other to be applicable to drill bits of different diameters, improving the flexibility of the electric drill. At the same time, the debris generated during the drilling process can be blocked to prevent the debris from splashing upwards into the eyes of the operator, improving the safety of the device.

[0012] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0013] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0014] Figure 1 It is the front view of an open-hole electric drill with a limiting function of the present utility model;

[0015] Figure 2 It is the structural diagram of the electric drill assembly of an open-hole electric drill with a limiting function of the present utility model;

[0016] Figure 3 It is the structural diagram of the limiting assembly of an open-hole electric drill with a limiting function of the present utility model;

[0017] Figure 4 Cross-sectional view of the limit component of a hole-opening electric drill with a limit function according to the present utility model.

[0018] Legend description:

[0019] 1. Electric drill assembly; 101. Main handle; 102. Main body; 103. Front handle; 104. Clamp; 105. Drill bit

[0020] 2. Limit component; 201. Outer sleeve; 202. Inner cavity; 203. Return spring; 204. Limit plate; 205. Front cover; 206. Center line mark; 207. Connecting rod; 208. Outer ring; 209. Middle ring; 210. Inner ring; 211. Outer groove; 212. Middle groove; 213. Inner groove; 214. Block Specific implementation mode

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0022] Refer to Figures 1-4, in an embodiment of the present utility model, an open-hole electric drill with a limiting function includes: a drill assembly 1 and a limiting assembly 2. The limiting assembly 2 is located above the drill assembly 1. The limiting assembly 2 includes an outer sleeve 201, an inner cavity 202, a return spring 203, a limiting plate 204, a front cover 205, a center line mark 206, a connecting rod 207, an outer ring 208, a middle ring 209, an inner ring 210, an outer groove 211, a middle groove 212, an inner groove 213 and a clamping block 214. The outer sleeve 201 is in a "door" shape. An inner cavity 202 is provided inside the outer sleeve 201. A return spring 203 is provided inside the inner cavity 202. The number of return springs 203 is three, and they are evenly distributed in the upper, left and right directions of the inner cavity 202. The rear end of the return spring 203 is fixedly connected to the outer sleeve 201. The front end of the return spring 203 is fixedly connected to a limiting plate 204. A front cover 205 is fixedly connected to the front side wall of the limiting plate 204. The front cover 205 is made of transparent tempered glass material, which is used to block the flying debris during the drilling process and prevent it from flying into the operator's eyes. A center line mark 206 is fixedly connected to the top of the front cover 205, which is used to facilitate centering during drilling. A connecting rod 207 is fixedly connected to the lower part of the front cover 205. The number of connecting rods 207 is three, and they are evenly distributed below the front cover 205. An outer ring 208 is fixedly connected between the three connecting rods 207. A middle ring 209 is threadedly connected to the inner circumferential surface of the outer ring 208. An inner ring 210 is threadedly connected to the inner circumferential surface of the middle ring 209. An outer groove 211 is provided on the outer ring 208. A middle groove 212 is provided on the middle ring 209. An inner groove 213 is provided on the inner ring 210. A clamping block 214 is clamped inside the outer groove 211, the middle groove 212 and the inner groove 213, which is used to fix the outer ring 208, the middle ring 209 and the inner ring 210.

[0023] The drill assembly 1 includes a main handle 101, a main body 102, a front handle 103, a fixture 104 and a drill bit 105. The top of the main handle 101 is fixedly connected to the main body 102. The main handle 101 contains components such as a battery inside. The main body 102 contains the main mechanical components of the electric drill. The bottom of the outer sleeve 201 is fixedly connected to the main body 102. The bottom of the main body 102 is fixedly connected to a front handle 103 for convenient holding. A fixture 104 is fixedly connected to the front side wall of the main body 102. A drill bit 105 is clamped inside the fixture 104. The drill bit 105 passes through the inner ring 210 from front to back, so that the drill bit 105 is always kept horizontal, avoiding deviation of the drilled hole caused by jitter during the drilling process. The connecting rod 207, the outer ring 208, the middle ring 209 and the inner ring 210 are all located in front of the fixture 104.

[0024] Working principle: Clamp the drill bit 105 inside the fixture 104, and make the front end of the drill bit 105 located inside the inner ring 210. Hold the main handle 101 and the front handle 103 with both hands respectively. Align the drill bit 105 with the drilling position to be drilled through the center line mark 206 and drill. During the drilling process, as the drill bit 105 drills in, the return spring 203 contracts, and the inner ring 210 always limits the drill bit 105 to keep the drill bit 105 drilling horizontally. When drilling holes of different diameters, replace the appropriate drill bit 105, and then cooperate with the outer ring 208, the middle ring 209 and the inner ring 210 to horizontally limit the drill bit 105.

[0025] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A hole-opening electric drill with a limit function, characterized in that: include: An electric drill assembly (1) and a limit assembly (2), wherein the limit assembly (2) is located above the electric drill assembly (1), and the limit assembly (2) comprises an outer sleeve (201), an inner cavity (202), a return spring (203), a limit plate (204), a front cover (205), a center line mark (206), a connecting rod (207), an outer ring (208), a middle ring (209), an inner ring (210), an outer groove (211), a middle groove (212), an inner The outer sleeve (201) is in the shape of a "door", an inner cavity (202) is provided inside the outer sleeve (201), a return spring (203) is provided inside the inner cavity (202), a rear end of the return spring (203) is fixedly connected to the outer sleeve (201), a front end of the return spring (203) is fixedly connected to a limit plate (204), a front cover (205) is fixedly connected to the front side wall of the limit plate (204), the front cover (205) is made of transparent tempered glass, a center line mark (206) is fixedly connected to the top of the front cover (205), a connecting rod (207) is fixedly connected to the bottom of the front cover (205), three connecting rods (207) are provided, and they are evenly distributed below the front cover (205), an outer ring (208) is fixedly connected between the three connecting rods (207), and the outer ring (208) ) is threadedly connected to a middle ring (209) on its inner circumferential surface, an inner ring (210) is threadedly connected to the inner circumferential surface of the middle ring (209), an outer groove (211) is provided on the outer ring (208), a middle groove (212) is provided on the middle ring (209), an inner groove (213) is provided on the inner ring (210), and blocks (214) are clamped inside the outer groove (211), the middle groove (212) and the inner groove (213).

2. The electric drill with a limit function according to claim 1, characterized in that: The electric drill assembly (1) comprises a main handle (101), a main body (102), a front handle (103), a clamp (104) and a drill bit (105); the top of the main handle (101) is fixedly connected to the main body (102); the bottom of the main body (102) is fixedly connected to the front handle (103); the front side wall of the main body (102) is fixedly connected to the clamp (104); and the drill bit (105) is clamped inside the clamp (104).

3. The electric drill with a limit function for drilling holes according to claim 2, characterized in that: The bottom of the outer shell (201) is fixedly connected to the main body (102).

4. The electric drill with a limit function for drilling holes according to claim 2, characterized in that: The connecting rod (207), the outer ring (208), the middle ring (209), and the inner ring (210) are all located in front of the clamp (104).

5. The electric drill with a limit function for drilling holes according to claim 1, characterized in that: The number of the return springs (203) is three and they are evenly distributed in the upper, left and right directions of the inner cavity (202).

6. The electric drill with a limit function for drilling holes according to claim 2, characterized in that: The drill bit (105) penetrates the inner ring (210) from front to back.

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