A quick disassembly structure for electric drill bit and electric drill

Abstract

The present invention discloses a quick disassembly structure for an electric drill bit, comprising a quick disassembly mechanism, a drill chuck is arranged on the outside of the quick disassembly mechanism, and the quick disassembly mechanism comprises a fixed plate, a positioning seat is fixedly installed in the middle of the bottom surface of the fixed plate, a three-jaw chuck is arranged inside the drill chuck, a movable plate is fixedly connected to the bottom surface of the locking clamp, a movable seat is fixedly connected to an outer wall of one side of the movable plate, screw rods are rotatably arranged at both ends of the bottom of the fixed plate, the movable seat is threadedly connected to the surface of the screw rod, and a connecting rod is fixedly connected between the two screw rods. The quick disassembly structure for an electric drill bit disclosed by the present invention has the effect of realizing quick installation and disassembly. During installation and disassembly, after inserting the drill bit into the positioning seat, the operator can let go and perform other operations. The entire disassembly and assembly operation is simple, and no other tools are required to assist in installation and disassembly, so that the drill bit can be quickly disassembled and assembled, and the technical effect of improving the efficiency of drill bit disassembly and assembly is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of electric drills, and in particular to an electric drill bit quick disassembly structure and an electric drill thereof. Background Art

[0002] An electric drill is a drilling machine that uses electricity as power. It is a tool commonly used in the machinery industry, construction industry, and decoration industry for drilling, screwing, and screwdriving. Its working principle is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity electric motor performs magnetic field cutting and work operation, and drives the operating device through the transmission mechanism, driving the gears to increase the power of the drill bit, thereby allowing the drill bit to scrape the surface of the object and penetrate the object better.

[0003] The existing method for disassembling the drill bit of the electric drill is to disassemble it by means of threaded screws. First, the three-jaw chuck is adjusted to release the lock on the drill bit, and then the fastened drill bit is removed by a screwdriver. In this process, it is necessary to use external threaded fixings and threaded fastening tools for disassembly. Before removal, the drill bit needs to be held by hand, otherwise the drill bit will fall directly. During installation, the drill bit also needs to be held by hand while being fixed, which is inconvenient for installation, thereby resulting in low efficiency in disassembly and assembly of the electric drill bit, and the disassembly and assembly cannot be completed quickly. Summary of the invention

[0004] The present invention discloses a quick disassembly structure for an electric drill bit and an electric drill thereof, aiming to solve the technical problem that the disassembly of the drill bit requires the aid of an external threaded fixing part and a threaded fastening tool, and that the drill bit needs to be held by hand while being fixed or disassembled during disassembly and assembly, which is inconvenient, thereby resulting in low disassembly and assembly efficiency of the electric drill bit and inability to quickly complete disassembly and assembly.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The cam is secured to the inner wall of the drill bit and is adapted to engage the drill bit of the drill chuck when the cam is engaged. The cam is fixedly provided with a movable seat on one end of the outer wall of the movable seat, and the two ends of the bottom surface of the fixed seat are fixedly connected to the guide rod, and the movable seat is slidably arranged on the surface of the guide rod; the top surface of the locking clamp is fixedly connected to the extrusion plate, and the outer wall of the two extrusion plates away from each other is fixedly connected to the positioning rod, and the two ends of the top surface of the fixed plate are fixedly connected to the guide seat, and the positioning rod is slidably arranged inside the guide seat, and the surface of the positioning rod is sleeved with a spring, one end of the spring is fixedly connected to the outer wall of the extrusion plate, and the other end of the spring is fixedly connected to the outer wall of the guide seat; a sliding seat is slidably arranged on both sides of the locking clamp, and the two ends of the top surface of the fixed plate are fixedly connected to two sliding rails, and the sliding seat is slidably arranged on the surface of the sliding rail, and the two locking clamps are fixedly connected to a fixed rod one on the top surface of the side close to each other, and a deflection plate is rotatably arranged on the surface of the fixed rod one, and the top surface of one end of the sliding seat away from the locking clamp is fixedly connected to the fixed rod two, and the end of the deflection plate away from the fixed rod one is rotatably arranged on the surface of the fixed rod two.

[0007] By providing a quick disassembly mechanism, when installing the drill bit, the hand crank handle is turned to move the two locking splints toward the sides close to each other, so as to clamp and fix the drill bit, and the drill bit is initially locked. The operator does not need to support the drill bit with hands to fix it, and then controls and adjusts the three-jaw chuck to lock and fix the drill bit, and the installation of the drill bit is completed; when disassembling, the three-jaw chuck is adjusted to cancel the locking and fixing of the drill bit, and the hand crank handle is turned in the opposite direction to separate the two locking splints from the drill bit, so that the drill bit can be removed, and the disassembly of the drill bit is completed. The operation is simple, and no other tools are required to assist in installation and disassembly. During installation and disassembly, after the drill bit is inserted into the positioning seat, the operator's hands are freed, which is convenient for the operator to perform other operations, so that the drill bit can be quickly disassembled and assembled, and the disassembly and assembly efficiency of the drill bit is improved.

[0008] An electric drill comprises an electric drill bit quick-detachable structure as described above, and also comprises an electric drill body, the drill chuck is mounted on the outer wall of the electric drill body, a hand-held handle is fixedly mounted on the bottom surface of one end of the electric drill body away from the drill chuck, a power switch is provided on the hand-held handle, a stabilizing handle is fixedly mounted on the bottom surface of one end of the electric drill body close to the drill chuck, and a rotating motor is fixedly mounted inside the electric drill body, a cooling assembly is provided above the rotating motor, the cooling assembly comprises a drive motor, and the drive motor is fixedly mounted on the top inner wall of the electric drill body.

[0009] By providing an electric drill body, a hand-held handle, a power switch, a stable handle, a rotating motor and a cooling component, an operator can hold the hand-held handle with one hand and the stable handle with the other hand to perform operations such as drilling, thereby achieving stable operation and avoiding situations such as slipping of the hands. During use, the heat generated by the rotating motor is quickly dissipated through the cooling component, thereby improving the heat dissipation effect, avoiding the electric drill body and the rotating motor being in a high temperature state for a long time and causing components to burn out, thereby improving the use quality and life of the electric drill body and its internal components.

[0010] In a preferred embodiment, the power output shaft of the driving motor is connected to a driving gear through a coupling transmission, a driven gear is arranged on the side of the driving gear, and the driving gear and the driven gear are meshed with the same synchronous belt; the bottom surface of the driven gear is fixedly connected to a rotating seat, and a rotating frame is fixedly connected to an outer wall of one side of the rotating seat, a movable groove is opened inside the rotating frame, and a gear is rotatably arranged on the top surface of the end of the rotating frame away from the rotating seat, and an annular rack is fixedly connected to the inner wall of the electric drill body, and the gear is meshed with the annular rack; a rotating disk is fixedly installed on the top surface of the gear, an eccentric rod is fixedly connected to one end of the top surface of the rotating disk, a steering plate is rotatably arranged on the surface of the eccentric rod, a movable shell is slidably arranged inside the movable groove, and an end of the steering plate away from the eccentric rod is rotatably arranged on the movable The top surface of the movable shell, and the inner wall of the top surface of the movable shell are fixedly installed with a cooling fan; the inner wall of the electric drill body is fixedly installed with a cooling water tank, the cooling water tank is arranged above the rotating motor, and the cooling water tank is arranged below the rotating seat, the bottom surface of the cooling water tank is fixedly connected with a spoiler blade, and the spoiler blade is rotatably arranged inside the cooling water tank; a circulating pump is fixedly installed at the water outlet of the cooling water tank, the input end of the circulating pump is fixedly connected to the water outlet of the cooling water tank through a pipeline, and the output end of the circulating pump is fixedly connected to a water outlet pipe, and the end of the water outlet pipe away from the circulating pump is fixedly connected to a cooling pipe, the cooling pipe is arranged on the outside of the rotating motor, and the end of the cooling pipe away from the water outlet pipe is fixedly connected to a return pipe, and the end of the return pipe away from the cooling pipe is fixedly connected to the water inlet of the cooling water tank.

[0011] By providing a cooling component, when in use, the driving motor is started to enable the cooling fan to achieve multi-position change, and the cooling fan can quickly dissipate heat at different positions of the rotating motor to achieve uniform heat dissipation, avoid local overheating, and improve the heat dissipation effect. The circulating pump is started, and the cooling water flows into the cooling pipe to achieve water-cooled heat dissipation around the rotating motor, and then flows back to the inside of the cooling water tank through the reflux pipe. The water is turbulent through the turbulent blades to accelerate the cooling speed of the water, realize water-cooled and air-cooled heat dissipation, and achieve better heat dissipation effect, thereby ensuring the use quality and life of the electric drill body and its internal components.

[0012] From the above, it can be seen that the electric drill bit quick disassembly structure provided by the present invention has the effect of realizing quick installation and disassembly. During installation and disassembly, the operator can let go of the drill bit and perform other operations after inserting it into the positioning seat. The entire disassembly and assembly operation is simple, and no other tools are required to assist in installation and disassembly, so that the drill bit can be quickly disassembled and assembled, thereby improving the technical effect of the drill bit disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a quick-disassembly structure for an electric drill bit proposed by the present invention.

[0014] Figure 2 This is a side structural sectional view of a drill chuck of a quick-disassembly structure for an electric drill bit proposed by the present invention.

[0015] Figure 3 A structural side view of a quick disassembly mechanism of a quick disassembly structure for an electric drill bit proposed by the present invention.

[0016] Figure 4 This is a bottom view of the structure of the fixing plate of the electric drill bit quick disassembly structure proposed by the present invention.

[0017] Figure 5 This is a sectional view of the overall side structure of the electric drill proposed by the present invention.

[0018] Figure 6 This is a structural side view of the cooling assembly of the electric drill proposed by the present invention.

[0019] Figure 7 This is a side structural sectional view of the rotating frame of the electric drill proposed by the present invention.

[0020] In the attached drawings: 1. quick disassembly mechanism; 101. fixed plate; 102. locking splint; 103. movable plate; 104. movable seat 1; 105. screw rod; 106. connecting rod; 107. rotating rod; 108. hand crank handle; 109. movable seat 2; 110. guide rod; 111. positioning seat; 112. extrusion plate; 113. positioning rod; 114. guide seat; 115. spring; 116. slide rail; 117. slide seat; 118. fixed rod 1; 119. deflection plate; 120. fixed rod 2; 2. drill chuck; 3. three-jaw chuck; 4. drill bit; 5. electric drill body; 6. hand handle; 7. power supply switch; 8. steady handle; 9. rotating motor; 10. cooling assembly; 1001. driving motor; 1002. driving gear; 1003. driven gear; 1004. synchronous belt; 1005. rotating seat; 1006. rotating frame; 1007. moving slot; 1008. gear; 1009. annular rack; 1010. rotating disk; 1011. eccentric rod; 1012. steering plate; 1013. moving housing; 1014. cooling fan; 1015. cooling water tank; 1016. spoiler blade; 1017. circulating pump; 1018. water outlet pipe; 1019. cooling pipe; 1020. return pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] The electric drill bit quick disassembly structure and the electric drill disclosed in the present invention are mainly used in scenarios where the disassembly of the drill bit requires the aid of an external threaded fixing part and a threaded fastening tool, and the drill bit needs to be held by hand while being fixed or disassembled during disassembly and assembly, which is inconvenient, thereby resulting in low disassembly and assembly efficiency of the electric drill bit and the inability to quickly complete the disassembly and assembly.

[0023] Reference Figure 1-Figure 7A quick disassembly structure for an electric drill bit comprises a quick disassembly mechanism 1, a drill chuck 2 is arranged on the outer side of the quick disassembly mechanism 1, and the quick disassembly mechanism 1 comprises a fixing plate 101, the fixing plate 101 is fixedly connected to the inner wall of the drill chuck 2, two symmetrically arranged locking clamps 102 are slidably arranged on the top surface of the fixing plate 101, and a positioning seat 111 is fixedly installed in the middle of the bottom surface of the fixing plate 101, a drill bit 4 is plugged between the two locking clamps 102 and inside the positioning seat 111, a three-jaw chuck 3 is arranged inside the drill chuck 2, and the drill bit 4 passes through the drill chuck 2 and is plugged into the positioning seat 111 with the three-jaw chuck 3 , the bottom surface of the locking splint 102 is fixedly connected with a moving plate 103, and a moving seat 104 is fixedly connected to an outer wall of one side of the moving plate 103. Screw rods 105 are rotatably provided at both ends of the bottom of the fixed plate 101. The moving seat 104 is threadedly connected to the surface of the screw rod 105, and a connecting rod 106 is fixedly connected between the two screw rods 105; one end of one of the screw rods 105 away from the connecting rod 106 is fixedly connected to a rotating rod 107, and the end of the rotating rod 107 away from the screw rod 105 is fixedly connected to a hand crank handle 108, and the outer wall of one side of the moving plate 103 away from the moving seat 104 is fixedly connected to the moving seat The second 109, both ends of the bottom surface of the fixed plate 101 are fixedly connected with guide rods 110, and the movable seat 109 is slidably arranged on the surface of the guide rod 110; the top surface of the locking clamping plate 102 is fixedly connected with an extrusion plate 112, and the outer wall of the two extrusion plates 112 away from each other is fixedly connected with a positioning rod 113, and both ends of the top surface of the fixed plate 101 are fixedly connected with a guide seat 114, and the positioning rod 113 is slidably arranged inside the guide seat 114, and the surface of the positioning rod 113 is sleeved with a spring 115, one end of the spring 115 is fixedly connected to the outer wall of the extrusion plate 112, and the other end of the spring 115 is fixedly connected to the outer wall of the extrusion plate 112. Connected to the outer wall of the guide seat 114; sliding seats 117 are slidably set on both sides of the locking clamp plate 102, two sliding rails 116 are fixedly connected to the two ends of the top surface of the fixed plate 101, and the sliding seat 117 is slidably set on the surface of the sliding rail 116, and the two ends of the top surface of the side where the two locking clamp plates 102 are close to each other are fixedly connected to a fixing rod 118, and a deflection plate 119 is rotatably set on the surface of the fixing rod 118, and a fixing rod 2 120 is fixedly connected to the top surface of one end of the sliding seat 117 away from the locking clamp plate 102, and the end of the deflection plate 119 away from the fixing rod 118 is rotatably set on the surface of the fixing rod 2 120.

[0024] In a specific application scenario, when installing the drill bit 4, the drill bit 4 is inserted into the inside of the three-jaw chuck 3, and the end of the drill bit 4 is inserted into the inside of the positioning seat 111, and the hand crank handle 108 is manually turned to rotate the rotating rod 107. Since the connecting rod 106 is fixed to the two screw rods 105 at the same time, the rotating rod 107 drives the two screw rods 105 to rotate at the same time, so that the moving seat 104 slides along the surface of the screw rod 105, and the two locking splints 102 move toward the side close to each other, and the positioning rod 113 slides along the inside of the guide seat 114, and the spring 115 squeezes the extrusion plate 112 to reduce the power loss when the hand crank handle 108 is turned. When the locking splint 102 moves, the deflection angle of the deflection plate 119 changes, so that the sliding seat 117 moves toward one side of the locking splint 102 at the same time. When the locking splint 102 and the drill bit 4 are squeezed, the sliding seat 117 and the two sides of the locking splint 102 are The wall abuts against each other to achieve the limiting position of the locking clamping plate 102, ensuring the clamping and fixing effect of the locking clamping plate 102 on the drill bit 4. At this time, the drill bit 4 is initially locked, and the operator does not need to support the drill bit 4 with his hands to fix it. After completing the initial locking of the drill bit 4, the three-jaw chuck 3 is controlled and adjusted to achieve the locking and fixing of the drill bit 4 to complete the installation of the drill bit 4; when disassembling, the three-jaw chuck 3 is first adjusted to cancel the locking and fixing of the drill bit 4, and then the hand crank handle 108 is reversed to rotate the two locking clamping plates 102 in the direction away from each other and separate from the drill bit 4, and then the drill bit 4 can be removed to complete the disassembly of the drill bit 4. The operation is simple and no other tools are required to assist in installation and disassembly. During installation and disassembly, after the drill bit 4 is inserted into the positioning seat 111, the operator's hands are freed, which is convenient for the operator to perform other operations, so that the drill bit 4 can be quickly disassembled and assembled, thereby improving the disassembly and assembly efficiency of the drill bit 4.

[0025] It should be noted that the thread structures of the two screw rods 105 are in opposite directions. When the hand crank 108 is turned, the two movable seats 104 drive the locking clamps 102 to move in opposite directions, thereby achieving the operation of loosening or clamping the drill bit 4.

[0026] Reference Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7 The electric drill comprises an electric drill bit quick disassembly structure as described above, and also comprises an electric drill body 5, a drill chuck 2 is mounted on the outer wall of the electric drill body 5, a hand-held handle 6 is fixedly mounted on the bottom surface of one end of the electric drill body 5 away from the drill chuck 2, a power switch 7 is arranged on the hand-held handle 6, a stable handle 8 is fixedly mounted on the bottom surface of one end of the electric drill body 5 close to the drill chuck 2, and a rotating motor 9 is fixedly mounted inside the electric drill body 5, a cooling assembly 10 is arranged above the rotating motor 9, and the cooling assembly 10 comprises a driving motor 1001, and the driving motor 1001 is fixedly mounted on the inner wall of the top surface of the electric drill body 5.

[0027] In a specific application scenario, the operator holds the hand-held handle 6 in one hand and the stable handle 8 in the other hand to perform operations such as drilling, thereby achieving stable operation and avoiding situations such as slipping of the hands. During use, the rotating motor 9 continuously generates a large amount of heat, and the heat generated by the rotating motor 9 is quickly dissipated through the cooling component 10 to improve the heat dissipation effect, thereby avoiding the electric drill body 5 and the rotating motor 9 being in a high temperature state for a long time and causing components to burn out, thereby improving the use quality and life of the electric drill body 5 and its internal components.

[0028] Reference Figure 5 , Figure 6 and Figure 7 In a preferred embodiment, the power output shaft of the driving motor 1001 is connected to the driving gear 1002 through a coupling transmission, and a driven gear 1003 is arranged on the side of the driving gear 1002, and the driving gear 1002 and the driven gear 1003 are meshed with the same synchronous belt 1004; the bottom surface of the driven gear 1003 is fixedly connected to a rotating seat 1005, and the outer wall of one side of the rotating seat 1005 is fixedly connected to a rotating frame 1006, and a moving groove 1007 is opened inside the rotating frame 1006, and the rotating frame 1006 is away from A gear 1008 is rotatably provided on the top surface of one end of the rotating seat 1005, and an annular rack 1009 is fixedly connected to the inner wall of the electric drill body 5, and the gear 1008 is meshed with the annular rack 1009; a rotating disk 1010 is fixedly installed on the top surface of the gear 1008, and an eccentric rod 1011 is fixedly connected to one end of the top surface of the rotating disk 1010, and a steering plate 1012 is rotatably provided on the surface of the eccentric rod 1011, and a moving housing 1013 is slidably provided inside the moving groove 1007, and the steering plate 1012 rotates away from one end of the eccentric rod 1011 The top surface of the mobile housing 1013 is provided, and a cooling fan 1014 is fixedly installed on the inner wall of the top surface of the mobile housing 1013; a cooling water tank 1015 is fixedly installed on the inner wall of the electric drill body 5, and the cooling water tank 1015 is provided above the rotating motor 9, and the cooling water tank 1015 is provided below the rotating seat 1005, and the bottom surface of the cooling water tank 1015 is fixedly connected with a spoiler blade 1016, and the spoiler blade 1016 is rotatably provided inside the cooling water tank 1015; a circulating pump 1017 is fixedly installed at the water outlet of the cooling water tank 1015 The input end of the circulating pump 1017 is fixedly connected to the water outlet of the cooling water tank 1015 through a pipeline, and the output end of the circulating pump 1017 is fixedly connected to the water outlet pipe 1018, and the end of the water outlet pipe 1018 away from the circulating pump 1017 is fixedly connected to the cooling pipe 1019, and the cooling pipe 1019 is arranged on the outside of the rotating motor 9, and the end of the cooling pipe 1019 away from the water outlet pipe 1018 is fixedly connected to the return pipe 1020, and the end of the return pipe 1020 away from the cooling pipe 1019 is fixedly connected to the water inlet of the cooling water tank 1015.

[0029] Specifically, during use, the driving motor 1001 is started to rotate the driving gear 1002, and the driving gear 1002 and the driven gear 1003 are meshed with the synchronous belt 1004, so that the driven gear 1003 drives the rotating seat 1005 to rotate, and then the rotating frame 1006 rotates along the inside of the annular rack 1009. When rotating, the gear 1008 is meshed with the annular rack 1009, so that the rotating disk 1010 rotates accordingly, driving the steering plate 1012 to turn, so that the mobile housing 1013 reciprocates along the inside of the mobile slot 1007, and the cooling fan 1014 is turned on, and the cooling fan 1014 realizes multi-position change. ization, quickly dissipate heat at different positions of the rotating motor 9, achieve uniform heat dissipation, avoid local overheating, and improve the heat dissipation effect. At the same time, the circulating pump 1017 is started, and the circulating pump 1017 pumps water out of the cooling water tank 1015. The cooling water flows into the cooling pipe 1019 through the outlet pipe 1018, thereby achieving water-cooled heat dissipation around the rotating motor 9, and then flows back to the interior of the cooling water tank 1015 through the return pipe 1020. The water is turbulent through the turbulent blades 1016, which speeds up the cooling speed of the water, achieves water-cooled and air-cooled heat dissipation, and has a better heat dissipation effect, thereby ensuring the use quality and life of the electric drill body 5 and its internal components.

[0030] Working principle: When installing the drill bit 4, insert the drill bit 4 into the inside of the three-jaw chuck 3, and insert the end of the drill bit 4 into the inside of the positioning seat 111, manually turn the hand crank 108 to rotate the rotating rod 107, because the connecting rod 106 is fixed to the two screw rods 105 at the same time, the rotating rod 107 drives the two screw rods 105 to rotate at the same time, so that the moving seat 104 slides along the surface of the screw rod 105, and the two locking splints 102 move toward the side close to each other, and the positioning rod 113 slides along the inside of the guide seat 114, and the spring 115 squeezes the extrusion plate 112 to reduce the power loss when turning the hand crank 108. When the locking splint 102 moves, the deflection angle of the deflection plate 119 changes, so that the sliding seat 117 simultaneously moves toward the locking One side of the clamping plate 102 moves, and when the locking clamping plate 102 is squeezed with the drill bit 4, the sliding seat 117 and the outer walls of the two sides of the locking clamping plate 102 are abutted to limit the locking clamping plate 102, ensuring the clamping and fixing effect of the locking clamping plate 102 on the drill bit 4. At this time, the drill bit 4 is initially locked, and the operator does not need to support the drill bit 4 with his hands to fix it. After completing the initial locking of the drill bit 4, the three-jaw chuck 3 is controlled and adjusted to achieve the locking and fixing of the drill bit 4 to complete the installation of the drill bit 4. During use, the driving motor 1001 is started to rotate the driving gear 1002, and the driving gear 1002 and the driven gear 1003 are both meshed with the synchronous belt 1004, so that the driven gear 1003 drives the rotating seat 1005 to rotate, and then the rotating frame 10 06 rotates inside the annular rack 1009. When rotating, the gear 1008 meshes with the annular rack 1009, causing the rotating disk 1010 to rotate accordingly, driving the steering plate 1012 to turn, causing the mobile housing 1013 to reciprocate along the inside of the moving groove 1007, turning on the cooling fan 1014, and the cooling fan 1014 can achieve multi-position change, quickly dissipate heat at different positions of the rotating motor 9, achieve uniform heat dissipation, avoid local overheating, and improve the heat dissipation effect. At the same time, the circulating pump 1017 is started, and the circulating pump 1017 pumps water out of the cooling water tank 1015. The cooling water flows into the cooling pipe 1019 through the outlet pipe 1018, realizing water-cooled heat dissipation around the rotating motor 9, and then returns through the reflux pipe 1020. The water flows into the interior of the cooling water tank 1015, and the water is disturbed by the spoiler blades 1016, which speeds up the cooling speed of the water, realizes water cooling and air cooling heat dissipation, and has a better heat dissipation effect, thereby ensuring the use quality and life of the electric drill body 5 and its internal components. When removing the drill bit 4, first adjust the three-jaw chuck 3 to cancel the locking fixation of the drill bit 4, and then reversely rotate the hand crank handle 108 to make the two locking splints 102 move away from each other and separate from the drill bit 4, and then the drill bit 4 can be removed to complete the disassembly of the drill bit 4. The operation is simple, and no other tools are required to assist in installation and disassembly. During installation and disassembly, after the drill bit 4 is inserted into the positioning seat 111, the operator's hands are freed, which is convenient for the operator to perform other operations, so that the drill bit 4 can be quickly disassembled and assembled.The disassembly and assembly efficiency of the drill bit 4 is improved.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. The replacement may be a replacement of a part of the structure, device, method step, or a complete technical solution. Any equivalent replacement or change according to the technical solution and the inventive concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A quick-disassembly structure for an electric drill bit, comprising a quick-disassembly mechanism (1), characterized in that: A drill chuck (2) is arranged on the outer side of the quick-detachment mechanism (1), and the quick-detachment mechanism (1) comprises a fixing plate (101), the fixing plate (101) is fixedly connected to the inner wall of the drill chuck (2), two symmetrically arranged locking clamps (102) are slidably arranged on the top surface of the fixing plate (101), and a positioning seat (111) is fixedly installed in the middle of the bottom surface of the fixing plate (101), a drill bit (4) is inserted between the two locking clamps (102) and inside the positioning seat (111), and three The drill bit (4) passes through the drill chuck (2) and is inserted into the positioning seat (111) with the three-jaw chuck (3); the bottom surface of the locking clamp (102) is fixedly connected to a movable plate (103); one side outer wall of the movable plate (103) is fixedly connected to a movable seat (104); screw rods (105) are rotatably provided at both ends of the bottom of the fixed plate (101); the movable seat (104) is threadedly connected to the surface of the screw rod (105); and a connecting rod (106) is fixedly connected between the two screw rods (105); One end of the screw rod (105) away from the connecting rod (106) is fixedly connected to a rotating rod (107), and one end of the rotating rod (107) away from the screw rod (105) is fixedly connected to a hand crank (108); an outer wall of a side of the movable plate (103) away from the movable seat one (104) is fixedly connected to the movable seat two (109); both ends of the bottom surface of the fixed plate (101) are fixedly connected to guide rods (110), and the movable seat two (109) is slidably arranged on the surface of the guide rod (110); The top surface of the locking clamp (102) is fixedly connected to an extrusion plate (112), and the outer walls of the two extrusion plates (112) that are away from each other are fixedly connected to a positioning rod (113). Both ends of the top surface of the fixed plate (101) are fixedly connected to guide seats (114), and the positioning rod (113) is slidably arranged inside the guide seat (114). A spring (115) is sleeved on the surface of the positioning rod (113), and one end of the spring (115) is fixedly connected to the outer wall of the extrusion plate (112), and the other end of the spring (115) is fixedly connected to the outer wall of the guide seat (114); Both sides of the locking clamp (102) are slidably provided with a slide seat (117), both ends of the top surface of the fixed plate (101) are fixedly connected to two slide rails (116), the slide seat (117) is slidably provided on the surface of the slide rail (116), both ends of the top surfaces of the two locking clamps (102) on the side close to each other are fixedly connected to a fixing rod 1 (118), a deflection plate (119) is rotatably provided on the surface of the fixing rod 1 (118), the top surface of one end of the slide seat (117) away from the locking clamp (102) is fixedly connected to a fixing rod 2 (120), and one end of the deflection plate (119) away from the fixing rod 1 (118) is rotatably provided on the surface of the fixing rod 2 (120).

2. An electric drill, comprising an electric drill bit quick disassembly structure as claimed in claim 1, characterized in that: The electric drill body (5) is also provided. The drill chuck (2) is mounted on the outer wall of the electric drill body (5). A hand-held handle (6) is fixedly mounted on the bottom surface of one end of the electric drill body (5) away from the drill chuck (2). A power switch (7) is provided on the hand-held handle (6). A stabilizing handle (8) is fixedly mounted on the bottom surface of one end of the electric drill body (5) close to the drill chuck (2). A rotating motor (9) is fixedly mounted inside the electric drill body (5). A cooling assembly (10) is provided above the rotating motor (9). The cooling assembly (10) comprises a driving motor (1001). The driving motor (1001) is fixedly mounted on the inner wall of the top surface of the electric drill body (5).

3. The electric drill according to claim 2, characterized in that: The power output shaft of the driving motor (1001) is connected to a driving gear (1002) via a coupling, a driven gear (1003) is arranged on the side of the driving gear (1002), and the driving gear (1002) and the driven gear (1003) are meshed with a same synchronous belt (1004).

4. The electric drill according to claim 3, characterized in that: The bottom surface of the driven gear (1003) is fixedly connected to a rotating seat (1005), a rotating frame (1006) is fixedly connected to an outer wall of one side of the rotating seat (1005), a movable groove (1007) is provided inside the rotating frame (1006), and a gear (1008) is rotatably provided on the top surface of one end of the rotating frame (1006) away from the rotating seat (1005), and an annular rack (1009) is fixedly connected to the inner wall of the electric drill body (5), and the gear (1008) is meshed with the annular rack (1009).

5. The electric drill according to claim 4, characterized in that: A rotating disk (1010) is fixedly mounted on the top surface of the gear (1008); an eccentric rod (1011) is fixedly connected to one end of the top surface of the rotating disk (1010); a steering plate (1012) is rotatably mounted on the surface of the eccentric rod (1011); a movable housing (1013) is slidably mounted inside the movable groove (1007); one end of the steering plate (1012) away from the eccentric rod (1011) is rotatably mounted on the top surface of the movable housing (1013); and a cooling fan (1014) is fixedly mounted on the inner wall of the top surface of the movable housing (1013).

6. The electric drill according to claim 5, characterized in that: A cooling water tank (1015) is fixedly mounted on the inner wall of the electric drill body (5); the cooling water tank (1015) is arranged above the rotating motor (9), and the cooling water tank (1015) is arranged below the rotating seat (1005); a spoiler blade (1016) is fixedly connected to the bottom surface of the cooling water tank (1015); the spoiler blade (1016) is rotatably arranged inside the cooling water tank (1015).

7. The electric drill according to claim 6, characterized in that: A circulation pump (1017) is fixedly installed at the water outlet of the cooling water tank (1015); the input end of the circulation pump (1017) is fixedly connected to the water outlet of the cooling water tank (1015) via a pipeline; the output end of the circulation pump (1017) is fixedly connected to a water outlet pipe (1018); one end of the water outlet pipe (1018) away from the circulation pump (1017) is fixedly connected to a cooling pipe (1019); the cooling pipe (1019) is arranged on the outside of the rotating motor (9); one end of the cooling pipe (1019) away from the water outlet pipe (1018) is fixedly connected to a return pipe (1020); and one end of the return pipe (1020) away from the cooling pipe (1019) is fixedly connected to the water inlet of the cooling water tank (1015).

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