Handheld electric drill limiting device

Abstract

The utility model relates to the technical field of handheld electric drills, in particular to a handheld electric drill limiting device which comprises a handheld electric drill, and a limiting assembly is arranged on the left side of the handheld electric drill. The limiting assembly comprises a mounting lantern ring, a main body cylinder is fixedly connected to the mounting lantern ring, an adjusting rotating cylinder is installed on the inner side of the main body cylinder in a threaded connection mode, a support is fixedly installed at the outer side end of the adjusting rotating cylinder, a limiting ring is rotationally installed on the support, a flat washer is installed on the limiting ring in a clamped connection mode, and a first rotating base is fixedly installed on the side edge of the adjusting rotating cylinder. And a second rotating seat is fixedly mounted on the side edge of the limiting ring corresponding to the first rotating seat. The drilling depth of the drill bit can be adjusted and changed through the limiting assembly and rotation of the adjusting rotary drum, the drilling device can be suitable for drilling operation with the high-precision requirement, in addition, the telescopic rod is hinged between the limiting ring and the adjusting rotary drum, and the inclination angle of the limiting ring can be changed by adjusting the extension length of the telescopic rod; and the inclined limiting ring can limit the depth of the inclined hole.

Description

Technical Field

[0001] This utility model relates to the field of handheld electric drill technology, and in particular to a handheld electric drill limiting device. Background Technology

[0002] A handheld electric drill is a portable and flexible electric drilling tool widely used in construction, decoration, and furniture installation to drill holes or penetrate objects in materials such as metal, wood, and plastic.

[0003] In the existing technology, handheld electric drills are small in structure and have a single function. When drilling, the drilling depth needs to be controlled by the operator's experience, which makes them unsuitable for drilling operations with precise requirements for drilling depth. Especially in situations such as water and electricity installations where precise control of drilling depth is required, handheld electric drills cannot meet the drilling requirements. Therefore, we propose a handheld electric drill limiting device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a handheld electric drill limiting device.

[0005] By adopting the above technical solution

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A handheld electric drill limiting device includes a handheld electric drill with a limiting component on its left side. The limiting component includes a mounting collar, a main body cylinder fixedly connected to the mounting collar, an adjusting rotary cylinder screwed onto the inner side of the main body cylinder, a support fixedly mounted on the outer end of the adjusting rotary cylinder, a limiting ring rotatably mounted on the support, a flat washer snapped onto the limiting ring, a first rotary seat fixedly mounted on the side of the adjusting rotary cylinder, and a second rotary seat fixedly mounted on the side of the limiting ring corresponding to the position of the first rotary seat. A telescopic rod is hinged between the first and second rotary seats, and a positioning screw is screwed onto the side wall of the telescopic rod.

[0008] Preferably, a handle is fixedly installed on the lower side of the handheld electric drill, and a switch is installed on the handle.

[0009] By adopting the above technical solution, the switch on the handle can control the working status of the handheld electric drill.

[0010] Preferably, the handheld electric drill has evenly distributed positioning holes on its side wall, and the mounting sleeve is circumferentially screwed with positioning studs, the cross-sectional dimensions of which are adapted to the positioning holes.

[0011] Preferably, a drive motor is installed inside the handheld electric drill, a drill shaft is connected to the output end of the drive motor via a coupling, and a drill bit is installed at the end of the drill shaft.

[0012] By adopting the above technical solution, when the drive motor rotates, it can drive the drill shaft to rotate, which in turn drives the drill bit installed at the end of the drill shaft to rotate synchronously, providing output power during drilling.

[0013] Preferably, an auxiliary handle is fixedly installed on the lower side of the main body cylinder.

[0014] Preferably, the auxiliary handle is arc-shaped.

[0015] By adopting the above technical solution and setting the auxiliary handle, when using this equipment, one hand can hold the handle and the other hand can support the auxiliary handle, which improves the stability of the operator's grip on the electric drill, and makes the drilling more stable and regular when the operator uses this equipment to perform drilling operations.

[0016] Preferably, the inner side of the main cylinder is provided with an annular groove, and the inner side of the annular groove is provided with a smooth area and a threaded engagement area, and the threaded engagement area is screwed to the bottom of the adjusting cylinder.

[0017] Preferably, the outer side of the annular groove is a straight groove opening, and a plurality of balls are evenly distributed on the outer side of the annular groove.

[0018] By adopting the above technical solution, several balls are arranged on the outer side of the annular groove, which reduces the friction between the adjusting cylinder and the outer side of the annular groove, thereby protecting the inside of the annular groove and the adjusting cylinder.

[0019] Preferably, a sealing ring is provided at the upper port of the annular groove.

[0020] Preferably, the inner side of the limiting ring is provided with a slot, and the bottom of the flat washer is provided with a snap-fit ​​block, which is snap-fitted and installed inside the slot.

[0021] By adopting the above technical solution, the flat washer is set on the top of the limiting ring, so that during the drilling process, the limiting ring abuts against the area to be drilled through the flat washer, and the limiting ring fits the abutting area more closely.

[0022] Compared with related technologies, the handheld electric drill limiting device proposed in this utility model has the following beneficial effects:

[0023] In this utility model, a handheld electric drill limiting device is provided. The limiting component is mounted on the end of the handheld electric drill via a mounting ring. The drill bit mounted on the end of the handheld electric drill is positioned at the center of the limiting component. However, when the adjusting drum is rotated, the screw connection between the adjusting drum and the internal annular groove of the main body allows the adjusting drum to extend or retract along the side of the main body. This further changes the distance between the adjusting drum and the limiting ring on its front side from the end of the handheld electric drill, thereby affecting the drill bit's position. The distance protruding from the end of the limiting ring changes in the opposite direction. Under the action of the limiting ring, when the drill bit is driven by the hand-held electric drill to drill a hole, its drilling depth is the distance of the drill bit protruding from the limiting ring. The drilling depth of the drill bit can be changed by rotating the adjusting drum. In addition, a telescopic rod is also hinged between the limiting ring and the adjusting drum. The tilt angle of the limiting ring can be changed by adjusting the extension length of the telescopic rod. This setting is suitable for inclined drilling. The inclined limiting ring can limit the depth of the inclined hole, which enhances the multifunctionality of this utility model. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a handheld electric drill limiting device proposed in this utility model;

[0025] Figure 2 This is a three-dimensional disassembly diagram of a handheld electric drill limiting device proposed in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the limiting component;

[0027] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the limiting component.

[0028] In the diagram: 1. Handheld electric drill; 2. Handle; 3. Switch; 4. Positioning hole; 5. Drill spindle; 6. Drill bit; 7. Limiting assembly; 71. Mounting collar; 72. Positioning stud; 73. Main body; 74. Ring groove; 75. Smooth area; 76. Threaded engagement area; 77. Sealing ring; 78. Adjusting drum; 79. Support; 710. Limiting ring; 711. Flat washer; 712. First rotating seat; 713. Second rotating seat; 714. Telescopic rod; 715. Auxiliary handle. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-4A handheld electric drill limiting device includes a handheld electric drill 1, with a limiting component 7 disposed on the left side of the handheld electric drill 1; the limiting component 7 includes a mounting collar 71, a main body cylinder 73 fixedly connected to the mounting collar 71, an adjusting rotary cylinder 78 screwed onto the inner side of the main body cylinder 73, a support 79 fixedly installed on the outer end of the adjusting rotary cylinder 78, a limiting ring 710 rotatably mounted on the support 79, a flat washer 711 snapped onto the limiting ring 710, a first rotating seat 712 fixedly mounted on the side of the adjusting rotary cylinder 78, a second rotating seat 713 fixedly mounted on the side of the limiting ring 710 corresponding to the position of the first rotating seat 712, a telescopic rod 714 hinged between the first rotating seat 712 and the second rotating seat 713, and a positioning screw screwed onto the side wall of the telescopic rod 714.

[0031] In this embodiment, a slot is provided on the inner side of the limiting ring 710, and a snap-fit ​​block is provided at the bottom of the flat washer 711. The snap-fit ​​block is snap-fitted and installed inside the slot.

[0032] With the above structure, the flat washer 711 is snapped onto the upper side of the limiting ring 710 by the snap-fit ​​block at its bottom, which facilitates the replacement of the flat washer 711 in the future.

[0033] In this embodiment, a handle 2 is fixedly installed on the lower side of the handheld electric drill 1, a switch 3 is installed on the handle 2, and positioning holes 4 are evenly distributed on the side wall of the handheld electric drill 1. A positioning stud 72 is screwed around the mounting collar 71, and the cross-sectional dimensions of the positioning stud 72 are adapted to the positioning holes 4.

[0034] With the above structure, the mounting collar 71 is screwed into the positioning hole 4 on the handheld electric drill 1 by the positioning studs 72 arranged around the perimeter, thereby fixing the mounting collar 71 onto the handheld electric drill 1.

[0035] In this embodiment, a drive motor is installed inside the handheld electric drill 1, and a drill shaft 5 is connected to the output end of the drive motor via a coupling. A drill bit 6 is installed at the end of the drill shaft 5.

[0036] With the above structure, when the drive motor rotates, it drives the drill shaft 5 to rotate, and the drill shaft 5 synchronously drives the drill bit 6 to rotate, providing power output for the drill bit 6 to drill holes.

[0037] In this embodiment, an auxiliary handle 715 is fixedly installed on the lower side of the main body cylinder 73, and the auxiliary handle 715 is arc-shaped.

[0038] Through the above structure, the auxiliary handle 715 provides the operator with another hand grip, improving stability during drilling.

[0039] In this embodiment, an annular groove 74 is provided on the inner side of the main body cylinder 73. A smooth area 75 and a threaded engagement area 76 are provided on the inner side of the annular groove 74. The threaded engagement area 76 is screwed to the bottom of the adjusting rotating cylinder 78. The outer side of the annular groove 74 is a straight groove. Several balls are evenly distributed on the outer side of the annular groove 74. A sealing ring 77 is provided at the upper port of the annular groove 74.

[0040] With the above structure, the outer side of the annular groove 74 is a straight groove, and several balls are evenly distributed on the outer side of the annular groove 74, thereby reducing the friction between the adjusting cylinder 78 and the outer side of the annular groove 74 and reducing component wear.

[0041] In this invention, during use, the adjusting drum 78 is rotated according to the required drilling depth. This causes the adjusting drum 78 to rotate synchronously with the limiting ring 710 located at its outer end. Simultaneously, the distance between the limiting ring 710 and the end of the drill bit 6 changes, adjusting the distance between the limiting ring 710 and the end of the drill bit 6 to match the required drilling depth. Subsequently, the handheld electric drill 1 is started, driving the drill bit 6 to rotate for drilling. As the drill bit 6 moves into the drilling area, it is eventually restricted from further inward movement by the limiting ring 710. At this point, the drilling depth is the control depth of the limiting ring 710. The above describes the working process and principle of this invention. This invention has a compact structure, is easy to operate, and is an external accessory of the handheld electric drill 1, making it easy to detach from the handheld electric drill 1. It can precisely control the drilling depth and is highly practical.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A handheld electric drill limiting device, characterized in that, Includes a handheld electric drill (1), wherein a limit assembly (7) is provided on the left side of the handheld electric drill (1); The limiting component (7) includes an installation collar (71), on which a main body cylinder (73) is fixedly connected. An adjusting rotating cylinder (78) is screwed onto the inner side of the main body cylinder (73). A support (79) is fixedly installed on the outer end of the adjusting rotating cylinder (78). A limiting ring (710) is rotatably installed on the support (79). A flat washer (711) is snapped onto the limiting ring (710). A first rotating seat (712) is fixedly installed on the side of the adjusting rotating cylinder (78). A second rotating seat (713) is fixedly installed on the side of the limiting ring (710) corresponding to the position of the first rotating seat (712). A telescopic rod (714) is hinged between the first rotating seat (712) and the second rotating seat (713). A positioning screw is screwed onto the side wall of the telescopic rod (714).

2. The handheld electric drill limiting device according to claim 1, characterized in that, A handle (2) is fixedly installed on the lower side of the handheld electric drill (1), and a switch (3) is installed on the handle (2).

3. The handheld electric drill limiting device according to claim 1, characterized in that, The handheld electric drill (1) has evenly distributed positioning holes (4) on its side wall. The mounting collar (71) is screwed with positioning studs (72) around its circumference. The cross-sectional dimensions of the positioning studs (72) are adapted to the positioning holes (4).

4. The handheld electric drill limiting device according to claim 1, characterized in that, The handheld electric drill (1) is equipped with a drive motor on its inner side. The output end of the drive motor is connected to a drill shaft (5), and a drill bit (6) is installed at the end of the drill shaft (5).

5. A handheld electric drill limiting device according to claim 1, characterized in that, An auxiliary handle (715) is fixedly installed on the lower side of the main tube (73).

6. A handheld electric drill limiting device according to claim 5, characterized in that, The auxiliary handle (715) is arc-shaped.

7. A handheld electric drill limiting device according to claim 1, characterized in that, The inner side of the main body cylinder (73) is provided with an annular groove (74), and the inner side of the annular groove (74) is provided with a smooth area (75) and a threaded engagement area (76). The threaded engagement area (76) is screwed to the bottom of the adjusting rotating cylinder (78).

8. A handheld electric drill limiting device according to claim 7, characterized in that, The outer side of the annular groove (74) is a straight groove, and a number of rolling balls are evenly distributed on the outer side of the annular groove (74).

9. A handheld electric drill limiting device according to claim 7, characterized in that, A sealing ring (77) is provided at the upper port of the annular groove (74).

10. A handheld electric drill limiting device according to claim 1, characterized in that, The limiting ring (710) has a slot on its inner side, and the flat washer (711) has a snap-fit ​​block at its bottom, which is snap-fitted into the slot.

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