A perforating apparatus

Abstract

The utility model relates to punching equipment technical field more specifically, relate to a kind of punching equipment, including main body shell, chop module, transmission mechanism and handle, handle is rotatably connected with shell, transmission mechanism is installed in shell, transmission mechanism one end is connected with handle, other end is connected with chop module, the bottom of main body shell is equipped with installation port, chop module includes cutter, cutter is detachably connected with transmission mechanism, the movement track of cutter passes through installation port, when using, leather and other materials are placed to cutter below, handle is moved, cutter is moved by transmission mechanism, cutter passes through installation port, and material is punched to work;Since cutter is detachably connected with transmission mechanism, appropriate cutter can be selected and connected with transmission mechanism according to different working scene, punching is carried out, and the flexibility of punching work is improved.

Description

Technical Field

[0001] This utility model relates to the field of drilling equipment technology, and more specifically, to a drilling device. Background Technology

[0002] Drilling machines, nail guns, and other drilling equipment are widely used in leather crafting and other handicraft activities, and are suitable for home or studio use.

[0003] Patent CN201566009U discloses a nail gun, including a nail gun housing, a handle, and a grip. The nail gun housing contains an automatic nail feeder and a nailing mechanism. The handle is rotatably connected to the nail gun housing, and a spring on the handle's pivot I allows it to return to its original position. The nailing mechanism includes a punch, a punch holder, a punch spring, and a pressure adjustment structure. The punch is fixedly connected to the punch holder, which has a notch. The lower end of the punch spring is fixedly connected to the punch holder, and the upper end is connected to the pressure adjustment structure. It also includes a movable contact rotatably connected to the head of the handle. The handle has a limiting device to prevent the movable contact from rotating downwards, and the head of the movable contact rests against the notch on the punch holder. A return spring for the movable contact is also included. The design is simple, easy to assemble, requires little effort to operate, and has high work efficiency. However, in this design, the nail gun cannot flexibly change the punch according to the work scenario, limiting its applicability. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies that do not allow for tool replacement, and to provide a drilling device that allows for easy replacement of tool types to adapt to different working scenarios.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A drilling device is provided, including a main body shell, a cutting module, a transmission mechanism, and a handle. The handle is rotatably connected to the main body shell. The transmission mechanism is installed in the main body shell. One end of the transmission mechanism is connected to the handle, and the other end is connected to the cutting module. The bottom of the main body shell is provided with a mounting port. The cutting module includes a cutting tool, which is detachably connected to the transmission mechanism. The movement trajectory of the cutting tool passes through the mounting port.

[0006] In use, the punching device of this utility model involves placing materials such as leather under the blade, moving the handle, and driving the blade to move through the transmission mechanism. The blade passes through the mounting port to punch holes in the material. Since the blade is detachably connected to the transmission mechanism, appropriate blades can be selected to connect to the transmission mechanism according to different working scenarios, thereby improving the flexibility of the punching work.

[0007] Furthermore, the transmission mechanism is equipped with a magnetic interface at one end connected to the cutting tool, and the cutting tool is magnetically connected to the magnetic interface. Installing the cutting tool via magnetic attraction is simple and efficient.

[0008] Furthermore, the chopping module also includes a module housing, which is detachably mounted on the mounting port. The top of the module housing has an inlet, and the bottom has an outlet. The blade includes a blade interface, a blade body, and a blade head connected in sequence. The blade interface passes through the inlet and is detachably connected to the transmission mechanism. The blade body is movably mounted within the module housing, and the movement trajectory of the blade head passes through the outlet. The module housing protects the blade, preventing it from colliding with external objects and causing damage, reducing dust contact with the blade, and extending its service life. It also prevents accidental user contact with the blade, improving safety.

[0009] Furthermore, the bottom of the main body shell is provided with a fixing plate, and the top of the module shell is provided with a fixing groove that can cooperate with the fixing plate. The fixing plate is inserted into the fixing groove, and both the top and bottom of the fixing plate abut against the fixing groove. Through the cooperation of the fixing plate and the fixing groove, the module shell and the main body shell are precisely positioned and stably connected, ensuring that no loosening or displacement occurs during processing and guaranteeing processing accuracy.

[0010] Furthermore, the module housing includes a first housing and a second housing connected to each other. The inlet includes a first inlet and a second inlet respectively disposed on the first housing and the second housing. The outlet includes a first outlet and a second outlet respectively disposed on the first housing and the second housing. A first engagement portion is provided on the side wall of the first housing that contacts the second housing, and a second engagement portion is provided on the second housing. The first engagement portion and the second engagement portion slide in a direction perpendicular to the side wall of the module housing where they are located. The side wall of the tool interface is in contact with the inner wall of the first inlet and the second inlet. When installing the chopping module, the first engaging part of the first housing and the second engaging part of the second housing are engaged and locked together, allowing the first and second housings to slide relative to each other until the first and second infeed ports combine to form a complete infeed port. The cutting tool is then installed into the module housing through the infeed port, and the fixing plate is locked into the fixing slot. The cutting tool is moved to connect the cutting tool interface to the transmission mechanism, so that the side wall of the cutting tool interface fits against the inner wall of the infeed port, completing the installation of the chopping module. The sliding engagement of the first and second engaging parts ensures that the first and second housings can only move along a path perpendicular to the first and second engaging parts. The sidewalls of the module housing slide relative to each other. By adhering to the sidewall of the tool interface and the inner wall of the inlet, the relative sliding of the first and second housings is restricted, thus fixing the relative positions of the first and second housings. When the chopping module needs to be disassembled, the fixing slot is removed from the fixing plate, allowing the chopping module to detach from the main housing. The chopping module is then inverted, causing the tool interface to detach from the inlet. The first and second housings are slid together, causing the first and second engagement parts to separate, thus completing the disassembly of the chopping module. The disassembly and installation of the chopping module are simple, can be done by hand, are convenient to use, and have high work efficiency.

[0011] Furthermore, the cutting module also includes a protective cover for shielding the blade tip. The two ends of the protective cover are rotatably connected to the two sides of the module housing, and the protective cover is located outside the blade outlet. When the drilling device is not in operation, the protective cover is rotated to shield the blade tip, reducing the risk of blade tip damage. When drilling, the protective cover is rotated in the opposite direction to expose the blade tip for cutting.

[0012] Furthermore, it also includes a ruler, which has positioning grooves distributed along its length. The outer side of the protective cover has several positioning blocks that mate with the positioning grooves, and these positioning blocks engage with the positioning grooves. After rotating the protective cover to expose the cutting head of the tool, the positioning blocks on the protective cover are engaged with the positioning grooves on the ruler, achieving precise positioning of the drilling equipment. The working position of the drilling equipment can be adjusted by engaging the positioning blocks with different positioning grooves.

[0013] Furthermore, the transmission mechanism includes a slider, a first elastic element, and an unlocking element. The inner wall of the main body shell is provided with a first limiting element and a guide groove. One end of the first elastic element is connected to the slider, and the other end is connected to the first limiting element. The slider is slidably mounted in the guide groove. The cutter is detachably mounted on the bottom of the slider. The slider has a sliding groove on the side facing the handle. One end of the unlocking element is connected to the handle, and the other end is located in the sliding groove. During drilling, pressing down on the handle causes the end of the handle connected to the unlocking element to tilt upwards, moving the unlocking element upwards. After the unlocking element contacts the top of the sliding groove, it drives the slider to slide upwards along the guide groove, simultaneously moving the cutter upwards and compressing the first elastic element, converting the pressure applied to the handle into the elastic potential energy of the first elastic element. As the handle rotates, the horizontal position of the unlocking element gradually shifts outwards from the sliding groove. After the unlocking element drives the slider to move a predetermined distance, the unlocking element disengages from the sliding groove, and the slider moves downwards under the elastic force of the first elastic element, dislodging the cutter.

[0014] Furthermore, the unlocking component is provided with a first rotating shaft, and the unlocking component is rotatably connected to the handle through the first rotating shaft. The first rotating shaft is provided with a second elastic element for resetting the unlocking component. After pressing the handle down to make the unlocking component abut against the top of the slide groove, the unlocking component overcomes the elastic force of the second elastic element and rotates around the first rotating shaft, driving the slider to slide upward. As the unlocking component rotates, the first elastic element gradually compresses, and the deformation of the second elastic element increases. After the unlocking component rotates around the first rotating shaft at a certain angle, it disengages from the slide groove. The second elastic element drives the unlocking component to reset, and the elastic force of the first elastic element drives the slider to move downward, dislodging the tool. When the handle is rotated in the opposite direction, the end of the handle connected to the unlocking component moves downward. After the unlocking component contacts the slider, it overcomes the elastic force of the second elastic element and rotates in the opposite direction around the first rotating shaft. At the same time, the contact point between the unlocking component and the slider gradually moves downward until the unlocking component enters the slide groove. The second elastic element drives the unlocking component to reset.

[0015] Furthermore, the transmission mechanism also includes a third elastic element for driving the handle to reset. A second rotating shaft is provided on the inner wall of the main body shell, and the handle is rotatably connected to the second rotating shaft. The third elastic element is disposed on the second rotating shaft. When the handle is pressed down, the third elastic element deforms. After the handle is released, the third elastic element resets, and the elastic force of the third elastic element drives the handle to reset.

[0016] Compared with the prior art, the beneficial effects of this utility model are: The drilling device of this utility model has the following features: 1. The cutting tool is detachably connected to the transmission mechanism, allowing for the selection of appropriate cutting tools to connect with the transmission mechanism according to different working scenarios, thus improving the flexibility of drilling work; 2. The cutting tool is installed magnetically, making operation simple and installation efficient; 3. The cutting module can be installed and disassembled by hand, making operation simple and quick; 4. The positioning block on the protective cover and the positioning groove on the ruler are engaged to achieve precise positioning of the drilling device, improving processing accuracy; 5. Only downward pressing is required. Attached Figure Description

[0017] Figure 1 This is a first structural schematic diagram of the drilling device of this utility model; Figure 2 This is a schematic diagram of the second structure of the drilling device of this utility model; Figure 3 This is a schematic diagram of the third structure of the drilling device of this utility model; Figure 4 This is a first structural schematic diagram of the striking module of the punching device of this utility model; Figure 5 This is an exploded view of the structure of the cutting module of the punching device of this utility model; Figure 6 This is a schematic diagram of the structure of the second outer shell and the cutting tool of the punching device of this utility model; Figure 7 This is a schematic diagram of the second structure of the striking module of the punching device of this utility model.

[0018] In the attached diagram: 1. Main body shell; 11. Fixing plate; 12. First limiting member; 13. Grip hole; 14. Fixing frame; 2. Chopping module; 21. Module shell; 211. First engagement part; 212. Second engagement part; 213. Tool slide rail; 214. Fixing groove; 22. Tool; 221. Tool interface; 222. Tool body; 223. Tool head; 23. Protective cover; 231. Positioning block; 3. Transmission mechanism; 31. Slider; 311. Slide groove; 32. First elastic member; 33. Unlocking member; 34. Magnetic interface; 35. Second elastic member; 36. Third elastic member; 4. Handle; 41. First rotating shaft; 42. Second limiting member; 5. Ruler; 51. Positioning groove. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Example 1 like Figures 1 to 7 The first embodiment of the punching device of this utility model is shown, which includes a main body shell 1, a cutting module 2, a transmission mechanism 3 and a handle 4. The handle 4 is rotatably connected to the main body shell 1. The transmission mechanism 3 is installed in the main body shell 1. One end of the transmission mechanism 3 is connected to the handle 4 and the other end is connected to the cutting module 2. The bottom of the main body shell 1 is provided with an installation port. The cutting module 2 includes a blade 22. The blade 22 is detachably connected to the transmission mechanism 3. The movement trajectory of the blade 22 passes through the installation port.

[0022] When using the punching device of this utility model, materials such as leather are placed under the blade 22, the handle 4 is moved, and the blade 22 is moved through the transmission mechanism 3. The blade 22 passes through the mounting port and punches the material. Since the blade 22 is detachably connected to the transmission mechanism 3, the appropriate blade 22 can be selected to connect with the transmission mechanism 3 according to different working scenarios to perform punching, thereby improving the flexibility of the punching work.

[0023] like Figure 1 and Figure 3 As shown, the end of the transmission mechanism 3 connected to the cutter 22 is provided with a magnetic interface 34, and the cutter 22 is connected to the magnetic interface 34 by magnetic force. Installing the cutter 22 via magnetic attraction is simple and efficient.

[0024] like Figures 1 to 3 As shown, the chopping module 2 also includes a module housing 21, which is detachably mounted on the mounting port. The top of the module housing 21 has an inlet, and the bottom of the module housing 21 has an outlet. Figure 6As shown, the cutting tool 22 includes a cutting tool interface 221, a cutting tool body 222, and a cutting head 223 connected in sequence. The cutting tool interface 221 passes through the inlet and is detachably connected to the transmission mechanism 3. In this embodiment, the cutting head 223 is made of magnetic material. The cutting tool body 222 is movably installed in the module housing 21, and the movement trajectory of the cutting head 223 passes through the outlet. The module housing 21 protects the cutting tool 22, preventing it from colliding with external objects and causing damage, reducing dust contact with the cutting tool 22, and extending its service life. It also prevents accidental contact with the cutting tool 22 by the user, improving safety.

[0025] like Figure 1 As shown, the bottom of the main body shell 1 is provided with a fixing plate 11, such as... Figures 4 to 6 As shown, the top of the module housing 21 is provided with a fixing groove 214 that can cooperate with the fixing plate 11. The fixing plate 11 is inserted into the fixing groove 214, and both the top and bottom of the fixing plate 11 abut against the fixing groove 214. Through the cooperation between the fixing plate 11 and the fixing groove 214, the module housing 21 and the main housing 1 are precisely positioned and securely connected, ensuring that no loosening or displacement occurs during processing and guaranteeing processing accuracy.

[0026] like Figure 5As shown, the module housing 21 includes a first housing and a second housing connected to each other. The inlet includes a first inlet and a second inlet respectively provided on the first housing and the second housing. The outlet includes a first outlet and a second outlet respectively provided on the first housing and the second housing. A first engagement part 211 is provided on the side wall of the first housing that contacts the second housing. A second engagement part 212 is provided on the second housing. The first engagement part 211 and the second engagement part 212 slide and engage in a direction perpendicular to the side wall of the module housing 21. The side wall of the tool interface 221 is in contact with the inner wall of the first inlet and the second inlet. When installing the chopping module 2, the first engagement part 211 of the first outer shell and the second engagement part 212 of the second outer shell are engaged and locked together, allowing the first and second outer shells to slide relative to each other until the first and second infeed ports are combined to form a complete infeed port. The cutting tool 22 is then installed into the module outer shell 21 through the infeed port, and the fixing plate 11 is locked into the fixing groove 214. The cutting tool 22 is moved to connect the cutting tool interface 221 to the transmission mechanism 3, so that the side wall of the cutting tool interface 221 is flush with the inner wall of the infeed port, completing the installation of the chopping module 2. The sliding engagement of the first engagement part 211 and the second engagement part 212 ensures that the first and second outer shells can only slide along a path perpendicular to the first engagement part 211 and the second engagement part 212. The side walls of the module housing 21 where part 212 is located slide relative to each other. The relative sliding of the first housing and the second housing is restricted by the contact between the side wall of the tool interface 221 and the inner wall of the inlet, thereby fixing the relative position of the first housing and the second housing. When it is necessary to disassemble the chopping module 2, the fixing slot 214 is removed from the fixing plate 11, so that the chopping module 2 is separated from the main housing 1. The chopping module 2 is inverted, so that the tool interface 221 is separated from the inlet. The first housing and the second housing are slid, so that the first engagement part 211 and the second engagement part 212 are separated, thus completing the disassembly of the chopping module 2. The disassembly and installation of the chopping module 2 is simple, can be disassembled and assembled by hand, is convenient to use, and has high work efficiency.

[0027] In this embodiment, as Figure 6 As shown, a tool slide rail 213 is provided on the inner wall of the module housing 21. The tool slide rail 213 includes a first tool slide rail and a second tool slide rail respectively provided on the first housing and the second housing. The tool interface 221 slides in the tool slide rail 213. The tool slide rail 213 has openings at the top and bottom. The size of the top opening of the tool slide rail 213 is equal to the size of the inlet, and the size of the bottom opening is smaller than the size of the bottom of the tool interface 221. The tool body 222 passes through the bottom opening of the tool slide rail 213.

[0028] The working principle of the drilling device in this embodiment is as follows: During installation, the first engagement part 211 of the first outer shell and the second engagement part 212 of the second outer shell are engaged and locked together, so that the first outer shell and the second outer shell slide relative to each other until the first inlet and the second inlet are combined to form a complete inlet. The cutting tool 22 is inserted into the module outer shell 21 through the inlet. The blade 222 and the cutting head 223 pass through the bottom opening of the cutting tool slide rail 213. The cutting head 223 protrudes from the outlet of the module outer shell 21. The cutting tool interface 221 is blocked by the bottom of the cutting tool slide rail 213 after entering the cutting tool slide rail 213. The fixing plate 11 is inserted into the fixing groove 214. The cutting tool 22 is moved and the cutting tool interface 221 is connected to the magnetic interface 34 at the end of the transmission mechanism 3, so that the side wall of the cutting tool interface 221 is attached to the inner wall of the inlet, thus completing the installation of the cutting module 2. When in use, place materials such as leather under the blade 22, move the handle 4, and drive the blade 22 to move through the transmission mechanism 3, so that the blade head 223 extends out of the blade opening to punch holes in the material; When maintenance or replacement of the cutting tool 22 is required, remove the fixing slot 214 from the fixing plate 11 to detach the cutting module 2 from the main body shell 1. Invert the cutting module 2 to detach the cutting tool interface 221 from the inlet. Slide the first and second shells to separate the first engagement part 211 and the second engagement part 212. Figure 5 As shown; maintain the cutting tool 22 or replace it with a cutting tool 22 with a suitable blade length 222 and a cutting head 223 shape according to work requirements, and install the cutting tool 22 in the module housing 21; install the reassembled cutting module 2 on the mounting port of the main housing 1 to complete the maintenance or replacement of the cutting tool 22.

[0029] Example 2 This embodiment is the second embodiment of the drilling device of this utility model. This embodiment is similar to the first embodiment, except that, as Figure 5 and Figure 7 As shown, the cutting module 2 also includes a protective cover 23 for shielding the blade head 223 of the cutting tool 22. The two ends of the protective cover 23 are rotatably connected to the two sides of the module housing 21, and the protective cover 23 is located outside the blade outlet. When the drilling device is not in operation, the protective cover 23 is rotated to shield the blade head 223 of the cutting tool 22, reducing the risk of damage to the blade head 223. When drilling, the protective cover 23 is rotated in the opposite direction to expose the blade head 223 for cutting.

[0030] like Figure 2 As shown, it also includes a ruler 5, which has positioning grooves 51 distributed along its length, such as... Figure 7As shown, the outer side of the protective cover 23 is provided with several positioning blocks 231 that cooperate with the positioning groove 51. The positioning blocks 231 are engaged with the positioning groove 51. After rotating the protective cover 23 to expose the cutting head 223 of the tool 22, the positioning blocks 231 on the protective cover 23 are engaged with the positioning groove 51 of the ruler 5, so as to achieve precise positioning of the drilling equipment and improve the processing accuracy. The working position of the drilling equipment can be adjusted by engaging the positioning blocks 231 with different positioning grooves 51.

[0031] Example 3 This embodiment is the third embodiment of the drilling device of this utility model. This embodiment is similar to embodiment two, except that, as Figure 1 and Figure 3 As shown, the transmission mechanism 3 includes a slider 31, a first elastic element 32, and an unlocking element 33. The inner wall of the main body shell 1 is provided with a first limiting element 12 and a guide groove. One end of the first elastic element 32 is connected to the slider 31, and the other end is connected to the first limiting element 12. The slider 31 is slidably installed in the guide groove. The cutter 22 is detachably installed at the bottom of the slider 31. The slider 31 is provided with a slide groove 311 on the side facing the handle 4. One end of the unlocking element 33 is connected to the handle 4, and the other end is located in the slide groove 311. When drilling, pressing down on the handle 4 causes the end of the handle 4 connected to the unlocking member 33 to tilt upwards, moving the unlocking member 33 upwards. After the unlocking member 33 contacts the top of the slide groove 311, it drives the slider 31 to slide upwards along the guide groove through the slide groove 311. Simultaneously, it moves the cutter 22 upwards and squeezes the first elastic member 32, converting the pressure applied to the handle 4 into the elastic potential energy of the first elastic member 32. As the handle 4 rotates, the horizontal position of the unlocking member 33 gradually shifts outwards from the slide groove 311. After the unlocking member 33 drives the slider 31 to move a predetermined distance, the unlocking member 33 disengages from the slide groove 311, and the slider 31 moves downwards under the elastic force of the first elastic member 32, dislodging the cutter 22. In this embodiment, the magnetic interface 34 is located at the bottom of the slider 31, and the cutter interface 221 is connected to the magnetic interface 34 by magnetic force.

[0032] The unlocking component 33 is provided with a first rotating shaft 41, and the unlocking component 33 is rotatably connected to the handle 4 through the first rotating shaft 41. The first rotating shaft 41 is provided with a second elastic component 35 for resetting the unlocking component 33. Pressing the handle 4 downwards causes the unlocking member 33 to abut against the top of the slide groove 311. The unlocking member 33 then overcomes the elastic force of the second elastic member 35 and rotates around the first rotating shaft 41, causing the slider 31 to slide upwards. As the unlocking member 33 rotates, the first elastic member 32 gradually compresses, and the deformation of the second elastic member 35 increases. After the unlocking member 33 rotates around the first rotating shaft 41 at a certain angle, it disengages from the slide groove 311. The second elastic member 35 drives the unlocking member 33 to reset. The elastic force of the first elastic member 32 drives the slider 31 to move downwards, dislodging the tool 22. The handle 4 is then rotated in the opposite direction, and the end of the handle 4 connected to the unlocking member 33 moves downwards. After the unlocking member 33 contacts the slider 31, it overcomes the elastic force of the second elastic member 35 and rotates in the opposite direction around the first rotating shaft 41. At the same time, the contact point between the unlocking member 33 and the slider 31 gradually moves downwards until the unlocking member 33 enters the slide groove 311. The second elastic member 35 then drives the unlocking member 33 to reset.

[0033] The transmission mechanism 3 also includes a third elastic element 36 for resetting the handle 4. A second rotating shaft is provided on the inner wall of the main body shell 1. The handle 4 is rotatably connected to the second rotating shaft, and the third elastic element 36 is disposed on the second rotating shaft. When the handle 4 is pressed down, the third elastic element 36 deforms. After the handle 4 is released, the third elastic element 36 resets, and the elastic force of the third elastic element 36 drives the handle 4 to reset.

[0034] In this embodiment, as Figures 1 to 3 As shown, the outer wall of the main body shell 1 forms a grip hole 13. In use, insert the four fingers (excluding the thumb) into the grip hole 13, with the inner sides of the four fingers pressing against the outer wall of the grip hole 13. Place the palm against the top of the handle 4, close the hand, and squeeze the handle 4 to rotate it relative to the main body shell 1. Figure 2 and Figure 3 As shown, a fixing frame 14 is also provided at the end of the main body shell 1 away from the cutting module 2. The fixing frame 14 is rotatably connected to the main body shell 1. When the drilling device is not in use, the handle 4 can be pressed down and the fixing frame 14 can be rotated so that the inner side of the fixing frame 14 abuts against the upper surface of the handle 4, thereby reducing the size of the drilling device and making it easy to store.

[0035] like Figure 3 As shown, both the second elastic element 35 and the third elastic element 36 are torsion springs; the second elastic element 35 is sleeved on the first rotating shaft 41, and a second limiting element 42 is provided on the inner side wall of the handle 4. One end of the second elastic element 35 abuts against the bottom of the unlocking element 33, and the other end abuts against the side of the second limiting element 42 away from the unlocking element 33; the third elastic element 36 is sleeved on the second rotating shaft, and one end of the third elastic element 36 abuts against the top of the inner wall of the handle 4, and the other end abuts against the inner wall of the grip hole 13 (i.e., the grip hole 13 is located on the side wall inside the main body shell 1).

[0036] The working principle of the drilling device in this embodiment is as follows: 1. During installation, the first engagement part 211 of the first outer shell and the second engagement part 212 of the second outer shell are engaged and snapped together, so that the first outer shell and the second outer shell slide relative to each other until the first inlet and the second inlet are combined to form a complete inlet. The cutting tool 22 that meets the working requirements is installed in the module outer shell 21 through the inlet. The fixing plate 11 is snapped into the fixing groove 214, the cutting tool 22 is moved, and the cutting tool interface 221 is connected to the magnetic suction interface 34 at the end of the transmission mechanism 3, so that the side wall of the cutting tool interface 221 is attached to the inner wall of the inlet, and the installation of the cutting module 2 is completed. 2. Place the ruler 5 on or beside the material to be processed; rotate the protective cover 23 to expose the cutting head 223 of the tool 22, and engage the positioning block 231 on the protective cover 23 with the positioning groove 51 of the ruler 5 to achieve precise positioning of the drilling equipment. The working position of the drilling equipment can be precisely adjusted by engaging the positioning block 231 with different positioning grooves 51. 3. When drilling, insert the four fingers (excluding the thumb) into the grip hole 13, with the inside of the four fingers against the outer wall of the grip hole 13. Place the palm against the top of the handle 4, close the hand, and press the handle 4 downwards. As the deformation of the third elastic element 36 gradually increases, the end of the handle 4 connected to the unlocking element 33 tilts upwards, causing the unlocking element 33 to move upwards. After the unlocking element 33 contacts the top of the slide groove 311, the unlocking element 33 overcomes the elastic force of the second elastic element 35 and rotates around the first rotating shaft 41, causing the slider 31 to slide upwards along the guide groove, and causing the cutter 22 to move upwards. As the unlocking member 33 rotates and the slider 31 slides, the first elastic member 32 gradually compresses and the deformation of the second elastic member 35 gradually increases, converting the pressure applied to the handle 4 into the elastic potential energy of the first elastic member 32 and the second elastic member 35. As the handle 4 rotates, the horizontal position of the unlocking member 33 gradually shifts to the outside of the slide groove 311. After the unlocking member 33 drives the slider 31 to move a predetermined distance, the unlocking member 33 disengages from the slide groove 311. The slider 31 moves downward under the elastic force of the first elastic member 32, knocking out the tool 22. The second elastic member 35 drives the unlocking member 33 to reset. 4. After the handle 4 is released, the third elastic element 36 is reset. The elastic force of the third elastic element 36 drives the handle 4 to rotate in the opposite direction until it is reset. The end of the handle 4 connected to the unlocking element 33 moves downward. After the unlocking element 33 contacts the slider 31, the unlocking element 33 overcomes the elastic force of the second elastic element 35 and rotates in the opposite direction around the first rotating shaft 41. At the same time, the contact point between the unlocking element 33 and the slider 31 gradually moves downward until the unlocking element 33 enters the slide groove 311. The second elastic element 35 drives the unlocking element 33 to reset. 5. When maintenance or replacement of the cutting tool 22 is required, remove the fixing slot 214 from the fixing plate 11 to detach the cutting module 2 from the main body shell 1. Invert the cutting module 2 to detach the cutting tool interface 221 from the inlet. Remove the cutting tool 22 from the module shell 21. Slide the first shell and the second shell to separate them. Maintain or replace the cutting tool 22 according to work requirements. Install the cutting tool 22 in the module shell 21. Install the reassembled cutting module 2 on the mounting port of the main body shell 1 to complete the maintenance or replacement of the cutting tool 22.

[0037] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A drilling device, comprising a main body shell (1), a cutting module (2), a transmission mechanism (3), and a handle (4), wherein the handle (4) is rotatably connected to the main body shell (1), the transmission mechanism (3) is installed in the main body shell (1), one end of the transmission mechanism (3) is connected to the handle (4), and the other end is connected to the cutting module (2), wherein the bottom of the main body shell (1) is provided with an installation port, characterized in that, The chopping module (2) includes a cutting tool (22), which is detachably connected to the transmission mechanism (3), and the movement trajectory of the cutting tool (22) passes through the mounting port.

2. The drilling device according to claim 1, characterized in that, The transmission mechanism (3) is provided with a magnetic interface (34) at one end connected to the cutting tool (22), and the cutting tool (22) is connected to the magnetic interface (34) by magnetic force.

3. The drilling device according to claim 1, characterized in that, The chopping module (2) also includes a module housing (21), which is detachably mounted on the mounting port. The top of the module housing (21) is provided with an inlet, and the bottom of the module housing (21) is provided with an outlet. The blade (22) includes a blade interface (221), a blade body (222), and a blade head (223) connected in sequence. The blade interface (221) passes through the inlet and is detachably connected to the transmission mechanism (3). The blade body (222) is movably mounted in the module housing (21), and the movement trajectory of the blade head (223) passes through the outlet.

4. The drilling device according to claim 3, characterized in that, The bottom of the main body shell (1) is provided with a fixing plate (11), and the top of the module shell (21) is provided with a fixing groove (214) that can cooperate with the fixing plate (11). The fixing plate (11) is inserted into the fixing groove (214), and the top and bottom of the fixing plate (11) abut against the fixing groove (214).

5. The drilling device according to claim 3, characterized in that, The module housing (21) includes a first housing and a second housing connected to each other. The inlet includes a first inlet and a second inlet respectively provided on the first housing and the second housing. The outlet includes a first outlet and a second outlet respectively provided on the first housing and the second housing. A first engagement part (211) is provided on the side wall of the first housing that contacts the second housing. A second engagement part (212) is provided on the second housing. The first engagement part (211) and the second engagement part (212) slide and engage in a direction perpendicular to the side wall of the module housing (21). The side wall of the tool interface (221) is in contact with the inner wall of the first inlet and the second inlet.

6. The drilling device according to claim 3, characterized in that, The chopping module (2) also includes a protective cover (23) for shielding the blade tip (223) of the blade (22). The two ends of the protective cover (23) are rotatably connected to the two sides of the module housing (21), and the protective cover (23) is located outside the blade outlet.

7. The drilling device according to claim 6, characterized in that, It also includes a ruler (5), which has positioning grooves (51) distributed along the length direction. The outer side of the protective cover (23) is provided with a number of positioning blocks (231) that cooperate with the positioning grooves (51). The positioning blocks (231) are engaged with the positioning grooves (51).

8. The drilling device according to any one of claims 1 to 7, characterized in that, The transmission mechanism (3) includes a slider (31), a first elastic element (32), and an unlocking element (33). The inner wall of the main body shell (1) is provided with a first limiting element (12) and a guide groove. One end of the first elastic element (32) is connected to the slider (31), and the other end is connected to the first limiting element (12). The slider (31) is slidably installed in the guide groove. The cutter (22) is detachably installed at the bottom of the slider (31). The slider (31) is provided with a slide groove (311) on the side facing the handle (4). One end of the unlocking element (33) is connected to the handle (4), and the other end is located in the slide groove (311).

9. The drilling device according to claim 8, characterized in that, The unlocking component (33) is provided with a first rotating shaft (41), and the unlocking component (33) is rotatably connected to the handle (4) through the first rotating shaft (41). The first rotating shaft (41) is provided with a second elastic element (35) for resetting the unlocking component (33).

10. The drilling device according to claim 8, characterized in that, The transmission mechanism (3) further includes a third elastic element (36) for resetting the drive handle (4). A second rotating shaft is provided on the inner wall of the main body shell (1). The handle (4) is rotatably connected to the second rotating shaft. The third elastic element (36) is disposed on the second rotating shaft.

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