Anti-falling protection structure of electric tool

Abstract

The anti-falling protection structure of the electric tool comprises a shell and a battery pack, the shell is provided with a protection bin used for installing the battery pack, the protection bin is provided with a first opening allowing the battery pack to be placed in, the whole battery pack is contained in the protection bin in the installation process, the shell comprises a machine shell and a bottom cover installed below the machine shell, and the bottom cover is provided with a second opening allowing the battery pack to be placed in. A protection bin is defined by the bottom cover and the machine shell, a first damping part is arranged between the bottom cover and the machine shell, the first damping part is supported between the bottom cover and the machine shell and used for damping, a good protection effect on the battery pack is achieved through the protection bin, the battery pack is prevented from being damaged due to collision or falling, and the first damping part is supported between the bottom cover and the machine shell and used for damping. When the machine falls off accidentally in the using process, the whole machine can be well protected through buffering of the first damping piece between the bottom cover and the machine shell, and the situation that the machine falls off and the whole machine cracks is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electric tools, especially a kind of anti-falling protection structure of electric tool. BACKGROUND

[0002] Electric tool is with motor as power, through transmission mechanism or motor drive work head a mechanized equipment, they have carrying convenient, simple operation, function diverse etc.

[0003] For example, the utility model patent CN216760383U discloses a kind of brushless lithium electric hammer, including electric hammer main body, electric hammer main body is equipped with battery pack, battery pack includes the shell with containing cavity, containing cavity is installed with battery assembly in place through support, support is installed with protection plate, protection plate is equipped with socket spring, electric hammer main body is equipped with the plug-in board of insertion socket spring, containing cavity is equipped with the limiting piece that can be moved to its upper portion and extend shell for fixing battery pack on electric hammer main body, controller is installed in electric hammer main body for controlling the operation of motor.

[0004] The existing electric tool has the problem of falling during use, or falling when placed due to collision. UTILITY MODEL CONTENTS

[0005] Based on the above-mentioned problems of the existing electric tool, such as falling during use, or falling when placed due to collision, the electric tool falling on the ground can cause damage to the components, such as the battery pack exposed to the outside.

[0006] The utility model solves the above-mentioned technical problems by adopting the following technical scheme: an anti-falling protection structure of electric tool, including shell and battery pack, the shell is equipped with a protection compartment for installing the battery pack, the protection compartment is provided with a first opening for the battery pack to be packed, and the battery pack is accommodated in the protection compartment during installation.

[0007] The utility model further preferably discloses the technical scheme: the opposite inner wall of the protection storehouse two sides is equipped with the guide boss of the battery pack of inserting direction, the top of protection storehouse is equipped with electrode insert piece, first opening is equipped in the length direction of guide boss one side, the battery pack is equipped with two guide sliding groove of sliding cooperation with the guide boss of two sides and electrode terminal of electric connection with electrode insert piece, the battery pack is guided along the first direction and moves to the position that electrode insert piece and electrode terminal are electrically connected through guide boss direction, the position battery pack is completely received in protection storehouse, the top of protection storehouse is equipped with lock groove, the battery pack is equipped with the lock catch of lock groove card joint cooperation, the button of driving lock catch unlocking and reset spring, the inner wall of protection storehouse and first opening opposite side is installed with second damping part, the top of protection storehouse is equipped with third damping part, second damping part and third damping part support between the inner wall of protection storehouse and battery pack and slow down the vibration of transmission to battery pack, guide boss, electrode insert piece and lock groove are arranged on the casing.

[0008] The utility model further preferably discloses the technical scheme: the bottom cover and casing can detachable connection to form inner chamber in the inside, be equipped with controller in the inner chamber, the casing includes left half shell and right half shell of detachable connection together, be equipped with accommodation portion on left half shell and right half shell, the accommodation portion on left half shell and the accommodation portion on right half shell are opposite, the accommodation portion has the inner top surface of being located above, the inner bottom surface of being located below and the inner side surface of being arranged in the inner top surface and the inner bottom surface one side, the inner top surface and the inner bottom surface are opposite and form first accommodation space between them, the other side of inner top surface and inner bottom surface is equipped with the socket of the controller insertion first accommodation space, the socket is opposite to the inner side surface, the both sides of controller are inserted into the first accommodation space of two sides respectively, the side of controller insertion first accommodation space and the inner side surface between are equipped with fourth damping part, fourth damping part supports between the side of controller and inner side surface, the top of controller is equipped with fifth damping part, and fifth damping part supports between inner top surface and the top of controller, the bottom of controller is equipped with sixth damping part, and sixth damping part supports between bottom cover and the bottom of controller.

[0009] The utility model further preferably discloses the technical scheme: when battery package is in protection storehouse, the button is located on the upper portion of the one end of battery pack close to first opening, and the button and the top of protection storehouse form the operation space for the fingers to enter, the bottom of protection storehouse is equipped with second opening, and one end of second opening is communicated with the lower end of first opening.

[0010] The utility model further preferably discloses the technical scheme: the top of battery package is equipped with the abutment site of contact with third damping part, the abutment site is inclined surface, when battery package is in battery storehouse, the inclined surface is inclined along the first direction.

[0011] The further preferred technical scheme of the utility model discloses further provides: the accommodating portion includes upper horizontal plate, lower horizontal plate and vertical board, and the vertical board is connected between one side of the upper horizontal plate and the lower horizontal plate, and the lower surface of the upper horizontal plate is as the inner top surface, and the upper surface of the lower horizontal plate is as the inner bottom surface, and the first accommodating space is formed between the upper horizontal plate and the lower horizontal plate, and the side surface of the vertical board close to the first accommodating space is as the inner side surface.

[0012] The further preferred technical scheme of the utility model discloses further provides: the bottom of the controller is equipped with the limiting groove, and the limiting groove extends along the direction of the controller insertion first accommodating space and is through the left and right sides of the controller, and the inner bottom surface is equipped with the limiting convex part that cooperates with the limiting groove, and the limiting convex part inserts into the limiting groove and restricts the shift in the front and back directions of the controller.

[0013] The further preferred technical scheme of the utility model discloses further provides: the shell and bottom cover are connected through screw, the shell is equipped with the threaded hole, the bottom cover is equipped with the connecting hole, the first damping part is rubber column, and the screw is sequentially through the connecting hole and rubber column and is connected with the threaded hole on the shell, the rubber column is equipped with the through -hole that supplies the screw to pass, and the rod body part of the screw through the connecting hole can slide relative to the connecting hole.

[0014] The further preferred technical scheme of the utility model discloses further provides: the shell is equipped with the connecting column, and the threaded hole is arranged on the connecting column, the bottom cover is equipped with the installation slot corresponding to the connecting column, the upper end of the connecting hole is communicated with the lower bottom of the installation slot, the bottom of the bottom cover is equipped with the screw slot that is communicated with the lower end of the connecting hole, the first damping part is inserted and is fixed in the installation slot, the first damping part is equipped with the insertion slot opposite to the connecting column, the upper end of the through -hole is communicated with the slot bottom of the insertion slot, the connecting column is inserted in the insertion slot and abuts with the slot bottom of the insertion slot, the screw is sequentially through the connecting hole and the through -hole and is connected with the threaded hole on the connecting column, and the head of the screw is accommodated in the screw slot, the first damping part is circular column, and the circumference of the first damping part is equipped with a plurality of annular grooves, and the plurality of annular grooves are distributed along the axial direction of the first damping part.

[0015] The further preferred technical scheme of the utility model discloses further provides: the protective storehouse opposite two side inner walls are equipped with the window, and the shell and / or bottom cover are equipped with the heat dissipation hole that is communicated with the inner chamber.

[0016] Compared with the prior art, the shell is provided with the protection bin for mounting the battery pack, the battery pack is completely accommodated in the protection bin when being packed in the protection bin, the battery pack is well protected by the protection bin, the battery pack is prevented from being damaged due to collision or falling, in addition, the shell comprises the casing and the bottom cover arranged below the casing, the bottom cover and the casing enclose the protection bin, the first damping member is arranged between the bottom cover and the casing, the first damping member is supported between the bottom cover and the casing, the whole machine is well protected by the buffer of the first damping member between the bottom cover and the casing when being accidentally dropped, and the whole machine is prevented from being cracked due to falling. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be described in further detail below in combination with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as limiting the scope of the utility model. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described object conceptually and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 For the use state of the battery pack on the shell Figure 1 ;

[0019] Figure 2 For the use state of the battery pack on the shell Figure 2 ;

[0020] Figure 3 For the longitudinal section view of the shell Figure 1 ;

[0021] Figure 4 For Figure 3 The partial enlarged view of A of the shell

[0022] Figure 5 For the structure of the shell Figure 1 ;

[0023] Figure 6 For the structure of the shell Figure 2 ;

[0024] Figure 7 For the longitudinal section view of the shell

[0025] Figure 8 For Figure 7 The partial enlarged view of B of the shell

[0026] Figure 9 For the split view of the bottom cover and the casing

[0027] Figure 10 For the structure of the bottom cover

[0028] Figure 11 is a structural schematic diagram of the shell;

[0029] Figure 12 is a structural schematic diagram of the first damping member;

[0030] Figure 13 is a schematic diagram of a transverse section when the battery is packaged in the protective compartment Figure 1 ;

[0031] Figure 14 is a partial enlarged view of C of Figure 13 ;

[0032] Figure 15 is a schematic diagram of a longitudinal section when the battery is packaged in the protective compartment

[0033] Figure 16 is a partial enlarged view of D of Figure 15 ;

[0034] Figure 17 is a structural schematic diagram of the battery pack;

[0035] Figure 18 is a schematic diagram of a section when the controller is installed in the inner cavity Figure 1 ;

[0036] Figure 19 is a partial enlarged view of E of Figure 18 ;

[0037] Figure 20 is a schematic diagram of a section when the controller is installed in the inner cavity Figure 2 ;

[0038] Figure 21 is a partial enlarged view of F of Figure 20 ;

[0039] Figure 22 is a structural schematic diagram of the left half shell;

[0040] Figure 23 is a structural schematic diagram of the right half shell.

[0041] In the figure: 1, shell; 2, casing; 3, bottom cover; 4, window; 5, battery pack; 6, protective bin; 7, first opening; 8, button; 9, second opening; 10, operation space; 11, lock slot; 12, lock catch; 13, connecting frame; 14, lock catch opening; 15, button opening; 16, first containing space; 17, second damping piece; 18, guide convex rib; 19, third damping piece; 20, reinforcing rib; 21, electrode tab; 22, heat dissipation hole; 23, connecting column; 24, screw groove; 25, threaded hole; 26, screw; 27, first damping piece; 28, first mounting groove; 29, connecting hole; 30, head; 31, through hole; 32, insertion slot; 33, cover body; 34, outer retaining edge; 35, extension arm; 36, first embedding groove; 37, containing portion; 38, controller; 39, groove; 40, electrode seat; 41, annular groove; 42, first notch; 43, convex edge; 44, inclined surface; 45, second notch; 46, second embedding groove; 47, connecting seat; 48, guide sliding groove; 49, insertion port; 50, fourth damping piece; 51, sixth damping piece; 52, second mounting groove; 53, lower cross plate; 54, limiting convex portion; 55, limiting groove; 56, inner bottom surface; 57, fifth damping piece; 58, upper cross plate; 59, inner cavity; 60, left half shell; 61, inner side surface; 62, right half shell; 63, inner top surface; 64, vertical plate. DETAILED DESCRIPTION

[0042] Preferred embodiments of the present application will be described in detail below with reference to the attached drawings. It will be appreciated that the description is merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present application.

[0043] It should be noted that similar reference numerals refer to similar items throughout the attached drawings, and once an item is defined in one drawing, it can not be further defined and explained in subsequent drawings.

[0044] Figures 1-23 As shown, the anti-falling protection structure of the electric tool includes a shell 1 and a battery pack 5, and the shell 1 is provided with a protective bin 6 for mounting the battery pack 5. The protective bin 6 is provided with a first opening 7 for accommodating the battery pack 5. During installation, the battery pack 5 is accommodated in the protective bin 6 as a whole. The battery pack 5 is protected by the protective bin 6, so as to avoid damage of the battery pack 5 due to collision or machine falling.

[0045] Figures 1-6 As shown, the shell 1 includes a casing 2 and a bottom cover 3 mounted below the casing 2. The bottom cover 3 and the casing 2 form the protective bin 6.

[0046] Figures 7-12As shown, the first damping member 27 is arranged between the bottom cover 3 and the casing 2 for damping, and can protect the machine from cracking when the machine falls by the buffering of the first damping member 27 between the bottom cover 3 and the casing 2.

[0047] The casing 2 and the bottom cover 3 are connected by the screw 26, the casing 2 is provided with the threaded hole 25, the bottom cover 3 is provided with the connecting hole 29, the first damping member 27 is a rubber column, the screw 26 is screwed into the threaded hole 25 of the casing 2 through the connecting hole 29 and the first damping member 27 in sequence, the first damping member 27 is provided with the through hole 31 for the screw 26 to pass through, the rod body part of the screw 26 passing through the connecting hole 29 can slide relative to the connecting hole 29, so that the bottom cover 3 and the casing 2 can float relative to each other, and the bottom cover 3 and the casing 2 extrude the first damping member 27 in the middle during the floating process, so as to realize buffering and damping through the first damping member 27 in the middle.

[0048] Specifically, the casing 2 is provided with the connecting column 23, the threaded hole 25 is arranged on the lower end face of the connecting column 23, the bottom cover 3 is provided with the first installation groove 28 corresponding to the connecting column 23, the upper end of the connecting hole 29 is communicated with the lower bottom of the first installation groove 28, the bottom of the bottom cover 3 is provided with the screw groove 24 communicated with the lower end of the connecting hole 29, the connecting hole 29 in the middle and the first installation groove 28 and the screw groove 24 at the upper and lower ends form steps, the first damping member 27 is inserted and embedded in the first installation groove 28 and fixed, the first damping member 27 is provided with the insertion groove 32 opposite to the connecting column 23, the upper end of the through hole 31 is communicated with the groove bottom of the insertion groove 32, and the through hole 31 and the groove bottom of the insertion groove 32 form a step, the connecting column 23 is inserted into the insertion groove 32 and abuts against the groove bottom of the insertion groove 32, and the screw 26 is screwed into the threaded hole 25 of the connecting column 23 through the connecting hole 29 and the through hole 31 in sequence, and the head 30 of the screw 26 is accommodated in the screw groove 24, so that the screw 26 is not exposed outside, and the whole looks more beautiful.

[0049] The first damping member 27 is a circular column, and a plurality of annular grooves 41 are arranged on the circumference of the first damping member 27, and the plurality of annular grooves 41 are distributed in the axial direction of the first damping member 27. Preferably, the annular grooves 41 are annularly extended V-shaped grooves. By arranging the annular grooves 41 on the circumference of the first damping member 27, the first damping member 27 has better stretchability in the axial direction, so as to achieve better buffering and damping effect.

[0050] The above-mentioned annular grooves 41 are arranged within the length range of the first damping member 27 having the through hole 31, so as to avoid reducing the wall thickness of the first damping member 27 due to the arrangement of the annular grooves 41, thereby affecting the overall supportability.

[0051] Preferably, the casing 2 is provided with six connecting columns 23, three on each of the left and right sides, and the bottom cover 3 is provided with the same number of first mounting grooves 28, connecting holes 29 and screw grooves 24 as the connecting columns 23, and the first mounting grooves 28 correspond to the connecting columns 23 one by one.

[0052] The lower edge of the side wall of the casing 2 is provided with a downwardly protruding flange 43, the flange 43 is opposite to the upper edge of the side wall of the bottom cover 3 and has a spacing therebetween, the upper edge of the side wall of the bottom cover 3 is provided with an upwardly protruding outer stopper 34, the outer stopper 34 is opposite to the lower edge of the side wall of the casing 2 and has a spacing therebetween, and the outer stopper 34 surrounds the outside of the flange 43, so that the relative movement between the casing 2 and the bottom cover 3 is more stable.

[0053] Figure 6 、 Figure 17 As shown, the opposite inner walls of the protective compartment 6 are provided with guide protrusions 18 for guiding the inserted battery pack 5, the top of the protective compartment 6 is provided with an electrode insertion piece 21, the first opening 7 is located on one side of the length direction of the guide protrusions 18, the battery pack 5 is provided with two guide sliding grooves 48 respectively slidingly matched with the two guide protrusions 18 and an electrode terminal electrically connected with the electrode insertion piece 21, the inserted battery pack 5 is guided by the guide protrusions 18 to move in the first direction to a position where the electrode insertion piece 21 is electrically connected with the electrode terminal, at this position, the battery pack 5 is completely accommodated in the protective compartment 6, the top of the protective compartment 6 is provided with a lock groove 11, the battery pack 5 is provided with a lock catch 12 matched with the lock groove 11, a button 8 for driving the lock catch 12 to unlock and a return spring, and the battery pack 5 is locked in the protective compartment 6 by the matched engagement of the lock catch 12 and the lock groove 11 for power supply.

[0054] The guide protrusions 18, the electrode insertion piece 21 and the lock groove 11 are arranged on the casing 2, indicating that the battery pack 5 is connected to the casing 2, the installation of the battery pack 5 does not affect the damping of the first damping member 27 between the casing 2 and the bottom cover 3, and the bottom cover 3 is similar to a protective shell covering the outside of the bottom of the battery pack 5 connected to the casing 2.

[0055] Specifically, the top of the protection bin 6 is fixed with an electrode seat 40, the electrode tab 21 is installed on the electrode seat 40, the top of the battery pack 5 is provided with a connecting seat 47, the two sides of the connecting seat 47 are provided with guide sliding grooves 48, the electrode terminal is contained in the connecting seat 47, one end of the connecting seat 47 is provided with a plug-in interface 49 for the electrode tab 21 to plug into and electrically connect with the electrode terminal inside, after the battery pack 5 is inserted into the protection bin 6, the guide sliding grooves 48 on the battery pack 5 are in sliding cooperation with the guide convex ribs 18 in the protection bin 6, the battery pack 5 slides along the guide convex ribs 18 in the first direction to the front until the electrode tab 21 in the protection bin 6 is inserted into the plug-in interface 49 on the connecting seat 47 to electrically connect with the electrode terminal, the position is opposite to the lock slot 11, the lock catch 12 is clamped into the lock slot 11 to limit the movement of the battery pack 5 along the first direction to the side of the first opening 7 to separate from the protection bin 6.

[0056] Figures 13-16 As shown, the second damping member 17 is installed on the inner wall of the side of the protection bin 6 opposite to the first opening 7, and the third damping member 19 is provided on the top of the protection bin 6, when the battery pack 5 is installed in the protection bin 6 to supply power for the electric tool, the second damping member 17 and the third damping member 19 are supported between the inner wall of the protection bin 6 and the battery pack 5 to reduce the vibration transmitted from the shell 1 to the battery pack 5, reduce the influence of the vibration on the connection between the electrode tab 21 and the electrode terminal, avoid the electrode tab 21 on the shell 1 and the electrode terminal on the battery pack 5 from being burnt due to sparking, and also play a buffering role on the battery pack 5 when the electric tool falls on the ground to prevent the battery pack 5 from being damaged.

[0057] During use, the second damping member 17 is supported between the front side of the battery pack 5 and the inner wall of the side of the protection bin 6 opposite to the first opening 7 to reduce the vibration of the battery pack 5 in the first direction.

[0058] Preferably, the second damping member 17 is a cylindrical rubber column, the inner wall of the side of the protection bin 6 opposite to the first opening 7 is provided with a first embedding groove 36, the rubber column is embedded and fixed in the first embedding groove 36, and partially protrudes from the first embedding groove 36 to abut against the front side of the battery pack 5, the first embedding groove 36 is provided with a first slot 42 for the rubber column to protrude, the first slot 42 is opposite to the first opening 7, so that the front side of the battery pack 5 can be pressed on the second damping member 17 and be more directly subjected to the elastic force of the second damping member 17, and this structure makes the second damping member 17 achieve the best damping effect.

[0059] The cross-sectional shape of the first slot 36 is a N / 4 circle, N is greater than 2 and less than 4, so that the width of the first notch 42 is less than the diameter of the second damping member 17. Preferably, the cross-sectional shape of the first slot 36 is a two-thirds circle. This structure makes the second damping member 17 not come out of the first slot 36 after being installed in the first slot 36, and the second damping member 17 is fixed in the first slot 36. The second damping member 17 can be installed in the first slot 36 by its own elastic deformation. The diameter of the first slot 36 can be the same as the diameter of the second damping member 17; or the diameter of the second damping member 17 can be slightly larger than the diameter of the first slot 36, so that the second damping member 17 is in interference fit with the inner wall of the first slot 36 when the second damping member 17 is installed in the first slot 36.

[0060] Preferably, the protective compartment 6 is provided with three first slots 36 on the inner wall opposite to the first opening 7. The three first slots 36 are arranged in sequence from left to right along the width direction of the inner wall. The axis of the second damping member 17 is vertically arranged when the second damping member 17 is installed in the first slot 36. The three second damping members 17 can more balancedly support the front side of the battery pack 5. The three first slots 36 are arranged on the bottom cover 3.

[0061] The top of the battery pack 5 is provided with an abutting part in contact with the third damping member 19. The abutting part is a slope 44. The slope 44 is inclined in the first direction when the battery pack 5 is installed in the protective compartment 6. The slope 44 is in contact with the third damping member 19 when the battery pack 5 is installed in the protective compartment 6. This makes the third damping member 19 be able to slow down the forward and backward vibration of the battery pack 5 in the first direction and the up and down vibration in the vertical direction.

[0062] The third damping member 19 is a cylindrical rubber column. The top of the protective compartment 6 is provided with a second slot 46. The rubber column is inserted and fixed in the second slot 46 and partially protrudes from the second slot 46 and abuts against the slope 44 on the top of the battery pack 5. The second slot 46 is provided with a second notch 45 for the rubber column to protrude. The second notch 45 is on the side of the first opening 7 facing the slope 44. This makes the second notch 45 be able to face the slope 44 on the battery pack 5, so that the slope 44 on the battery pack 5 is directly subjected to the elastic force of the third damping member 19. This structure makes the third damping member 19 achieve the best damping effect.

[0063] The cross-sectional shape of the second slot 46 is N / 4 circle, N is greater than 2 and less than 4, so that the width of the second notch 45 is less than the diameter of the third damping member 19. Preferably, the cross-sectional shape of the second slot 46 is two-thirds circle. This structure makes the third damping member 19 not come out of the second slot 46 after being installed in the second slot 46. The third damping member 19 is fixed in the second slot 46. The third damping member 19 can be installed in the second slot 46 by its own elastic deformation. The diameter of the second slot 46 can be the same as the diameter of the third damping member 19. Or the diameter of the third damping member 19 can be slightly larger than the diameter of the second slot 46, so that the third damping member 19 and the inner wall of the second slot 46 are in interference fit when the third damping member 19 is installed in the second slot 46.

[0064] Preferably, the axial direction of the third damping member 19 is parallel to the inclined surface 44 to achieve the best damping effect.

[0065] The top of the battery pack 5 is provided with a lock catch opening 14 for the lock catch 12 to extend out of. The lock catch 12 extends out of the lock catch opening 14 and is in clamping fit with the lock slot 11. Specifically, the lock catch 12 is connected with the button 8 through a connecting frame 13. The lock catch 12, the connecting frame 13 and the button 8 are movably arranged on the battery pack 5. The button 8 is arranged at one end of the connecting seat 47 away from the plug-in port 49. The battery pack 5 is provided with a button opening 15 for exposing the button 8. The lock catch opening 14 is arranged on the top surface of the connecting seat 47. The return spring acts on the connecting frame 13. When the button 8 is pressed by external force, the connecting frame 13 drives the lock catch 12 to move downward and be retracted into the lock catch opening 14, so as to realize unlocking. When the button 8 loses the external force, the return spring drives the connecting frame 13, the lock catch 12 and the button 8 to move upward and reset, so that the lock catch 12 moves out of the lock catch opening 14. The connecting structure of the battery pack 5 is the same as that of the existing electric tool, which can be referred to the patent CN201728641U.

[0066] Preferably, the third damping member 19 has two, and the two third damping members 19 are respectively arranged on the two sides of the lock slot 11. The two sides of the lock slot 11 are provided with second slots 46 for installing the third damping members 19. The two third damping members 19 can be more balancedly supported on the two sides of the battery pack 5. The second slot 46 is arranged on the casing 2.

[0067] When the battery pack 5 is installed in the protective bin 6, the button 8 is located on the upper end of the battery pack 5 close to the first opening 7, and an operation space 10 is formed between the button 8 and the top of the protective bin 6 for fingers to enter, and the bottom of the protective bin 6 is provided with a second opening 9, one end of the second opening 9 communicates with the lower end of the first opening 7, when the battery pack 5 needs to be taken out of the protective bin 6, the rear part of the battery pack 5 is held by hand, at the same time, the button 8 is pressed down by the finger to make the lock catch 12 disengage from the lock slot 11, and then the battery pack 5 is pulled out, so that the battery pack 5 can be taken out by one hand, the operation space 10 is convenient for the finger to press the button 8, and the second opening 9 enables the hand to reach below the battery pack 5, so as to facilitate the battery pack 5 to be pulled out.

[0068] Specifically, the part of the top of the protective bin 6 opposite to the button 8 is gradually raised from the side away from the first opening 7 to the side close to the first opening 7, so as to form the operation space 10 between the button 8 and the top of the protective bin 6.

[0069] Figures 18-23 It is shown that the bottom cover 3 and the shell 2 are detachably connected, and an inner cavity 59 is formed in the inside of the two, and the controller 38 is installed in the inner cavity 59, the shell 2 comprises a left half shell 60 and a right half shell 62 which are detachably connected together, and the left half shell 60 and the right half shell 62 are provided with accommodating parts 37, the accommodating part 37 on the left half shell 60 is opposite to the accommodating part 37 on the right half shell 62, the accommodating part 37 has an inner top surface 63 located at the upper side, an inner bottom surface 56 located at the lower side, and an inner side surface 61 located at one side of the inner top surface 63 and the inner bottom surface 56, the inner top surface 63 and the inner bottom surface 56 are opposite to each other and a first accommodating space 16 is formed between the two, and the other side of the inner top surface 63 and the inner bottom surface 56 is provided with a socket for the controller 38 to be inserted into the first accommodating space 16, the socket is opposite to the inner side surface 61, and the two sides of the controller 38 are respectively inserted into the first accommodating space 16 on the two sides, and a fourth damping member 50 is arranged between the side of the controller 38 inserted into the first accommodating space 16 and the inner side surface 61, and the fourth damping member 50 is supported between the side of the controller 38 and the inner side surface 61, a fifth damping member 57 is arranged above the controller 38 and supported between the inner top surface 63 and the top of the controller 38, and a sixth damping member 51 is arranged below the controller 38 and supported between the bottom cover 3 and the bottom of the controller 38, the fourth damping member 50 on the two sides can reduce the vibration of the controller 38 in the left-right direction, the fifth damping member 57 above cooperates with the sixth damping member 51 below to reduce the vibration of the controller 38 in the up-down direction, and the front-rear direction of the controller 38 can be damped by the friction force of the fourth damping member 50, the fifth damping member 57 and the sixth damping member 51 acting on the controller 38, and the fourth damping member 50, the fifth damping member 57 and the sixth damping member 51 can reduce the vibration of the electric tool working to be transmitted to the controller 38, and can also buffer the controller 38 when the electric tool falls to the ground, so as to have a good protection effect on the controller 38 inside.

[0070] The structure is also convenient for the installation of the controller 38. When installing, one side of the controller 38 is inserted into the accommodating portion 37 on the left half shell 60 or the right half shell 62, then the left half shell 60 and the right half shell 62 are spliced, the two sides of the controller 38 are inserted into the accommodating portions 37 on the two sides of the left half shell 60 and the right half shell 62 respectively, and the left half shell 60 and the right half shell 62 are fixedly connected together. At this time, the two accommodating portions 37 sandwich the controller 38 to be fixed, and then the bottom cover 3 is connected to the shell 2 through the screws 26, so that the installation is completed.

[0071] The left half shell 60 and the right half shell 62 are connected through screws.

[0072] Preferably, the accommodating portion 37 comprises the upper horizontal plate 58, the lower horizontal plate 53 and the vertical plate 64, the vertical plate 64 is connected between one side of the upper horizontal plate 58 and the lower horizontal plate 53, the lower surface of the upper horizontal plate 58 serves as the inner top surface 63, the upper surface of the lower horizontal plate 53 serves as the inner bottom surface 56, and the first accommodating space 16 is formed between the upper horizontal plate 58 and the lower horizontal plate 53, and the side surface of the vertical plate 64 close to the first accommodating space 16 serves as the inner side surface 61.

[0073] The bottom of the shell 2 is provided with a bottom opening, the accommodating portions 37 on the left half shell 60 and the right half shell 62 are arranged outside the bottom opening, the bottom cover 3 covers the outer sides of the two accommodating portions 37, and the two accommodating portions 37 are arranged outside the shell 2. When the left half shell 60 and the right half shell 62 are spliced, the two accommodating portions 37 outside facilitate the user to install the damping members and the controller 38.

[0074] The left half shell 60 and the right half shell 62 are provided with support frames extending downward from the bottom opening, and the vertical plate 64 is connected to the support frame. The vertical plate 64 and the support frame are provided with the reinforcing ribs 20 to ensure the strength of the two accommodating portions 37.

[0075] The upper horizontal plate 58, the vertical plate 64, the lower horizontal plate 53 and the support frame are integrally formed, and the left half shell 60 and the right half shell 62 are integrally formed with the support frames connected thereto.

[0076] Preferably, the fourth damping member 50 is a sponge, which can be glued to the inner side surface 61 for convenient installation, or directly placed in the accommodating portion 37 to be attached to the inner side surface 61.

[0077] Preferably, the fifth damping member 57 is a U-shaped sponge, which is inserted on the upper horizontal plate 58 to be fixed. When installing the controller 38, no other hand is needed to hold the fifth damping member 57, which is convenient for the installation of the controller 38.

[0078] Preferably, the sixth damping member 51 is a rubber column, the bottom cover 3 is provided with a second mounting groove 52 below the controller 38, and the sixth damping member 51 is inserted and fixed in the second mounting groove 52, the upper end of the sixth damping member 51 protrudes from the second mounting groove 52, and the upper surface of the sixth damping member 51 abuts against the bottom of the controller 38. The sixth damping member 51 is fixedly installed on the bottom cover 3, so that when installing, the sixth damping member 51 does not need to be held, and the bottom cover 3 can be directly connected to the bottom of the shell 2 through the screw 26, which is convenient for installation.

[0079] The bottom of the controller 38 is provided with a limiting groove 55 extending in the direction in which the controller 38 is inserted into the first accommodating space 16 and penetrating through the left and right sides of the controller 38, and the inner bottom surface 56 is provided with a limiting protrusion 54 matched with the limiting groove 55, the limiting protrusion 54 is inserted into the limiting groove 55 to limit the controller 38 from moving in the front-back direction, so that the controller 38 is limited to move forward and backward in a small range, avoiding the controller 38 from moving forward and backward greatly due to shaking, and the limiting protrusion 54 and the limiting groove 55 have a gap between the two side walls for the controller 38 to float slightly, the limiting protrusion 54 and the limiting groove 55 only have a limiting effect, avoiding the vibration from being directly transmitted to the controller 38 through the limiting protrusion 54. And when the controller 38 is inserted into the two side accommodating portions 37, the limiting protrusion 54 can be clamped into the limiting groove 55, which is convenient for assembly.

[0080] The above-mentioned bottom cover 3 includes a cover body 33 and two extension arms 35 extending transversely from the cover body 33, the two extension arms 35 have a spacing space therebetween, the bottom of the shell 2 is provided with a recess 39 above the position of the spacing space, and the recess 39 and the spacing space combine to form the above-mentioned protection compartment 6, the shell 2 is provided with a cavity, the bottom opening on one side of the recess 39 is communicated with the cavity, the cover body 33 is combined with the cavity in the shell 2 to form an inner cavity 59 when covering the bottom opening, and the controller 38 is installed in the inner cavity 59.

[0081] The opposite inner walls of the protection compartment 6 are provided with windows 4, the windows 4 can be used to observe the condition of the battery pack 5 installed inside, and can also be used for heat dissipation of the battery pack 5, and the shell 2 and / or the bottom cover 3 are provided with heat dissipation holes 22 communicated with the inner cavity 59, and the heat dissipation holes 22 are used for heat dissipation of the controller 38.

[0082] For the structure of the accommodating portion 37, the patent also has another scheme, for example, the accommodating portion 37 can also be an accommodating groove.

[0083] The anti-falling protection structure of the electric tool provided by the utility model is introduced, the principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the utility model and the core idea. It should be pointed out that, for ordinary skilled persons in the technical field, the utility model can be improved and modified in several ways without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A drop protection structure for power tools, comprising a housing and a battery pack, characterized in that, The housing is provided with a protective compartment for installing a battery pack. The protective compartment has a first opening for the battery pack to be inserted. During installation, the battery pack is completely housed in the protective compartment. The housing includes a casing and a bottom cover installed below the casing. The bottom cover and the casing enclose the protective compartment. A first shock absorber is provided between the bottom cover and the casing. The first shock absorber is supported between the bottom cover and the casing for shock absorption.

2. The anti-fall protection structure for power tools according to claim 1, characterized in that, The inner walls of the protective compartment on both sides are provided with guide ribs to guide the inserted battery pack. The top of the protective compartment is provided with electrode inserts. The first opening is located on one side along the length of the guide ribs. The battery pack is provided with two guide grooves that slide and engage with the guide ribs on both sides, and electrode terminals that are electrically connected to the electrode inserts. The inserted battery pack is guided by the guide ribs to move along the first direction to the position where the electrode inserts and electrode terminals are electrically connected. At this position, the battery pack is completely contained within the protective compartment. The top of the protective compartment is provided with a locking groove. The battery pack is provided with a latch that engages with the locking groove, a button for unlocking the latch, and a return spring. A second shock absorber is installed on the inner wall of the protective compartment on the side opposite to the first opening. A third shock absorber is provided on the top of the protective compartment. The second and third shock absorbers are supported between the inner wall of the protective compartment and the battery pack to reduce the vibration transmitted to the battery pack. The guide ribs, electrode inserts, and locking groove are provided on the housing.

3. The anti-fall protection structure for power tools according to claim 1, characterized in that, The bottom cover is detachably connected to the housing to form an internal cavity, in which a controller is housed. The housing includes a left half-shell and a right half-shell detachably connected together. Each half-shell has a receiving portion, with the receiving portion on the left half-shell facing the receiving portion on the right half-shell. Each receiving portion has an inner top surface at the top, an inner bottom surface at the bottom, and an inner side surface on one side of the inner top and inner bottom surfaces. The inner top and inner bottom surfaces face each other and form a first receiving space between them. The other side of the inner top and inner bottom surfaces has a socket for inserting the controller into the first receiving space, with the socket facing the inner side surface. Both sides of the controller are inserted into the first receiving spaces on both sides. A fourth shock absorber is provided between the side of the controller inserted into the first receiving space and the inner side surface, supporting the side of the controller and the inner side surface. A fifth shock absorber is provided above the controller, supporting the top of the controller and the top of the controller. A sixth shock absorber is provided below the controller, supporting the bottom cover and the bottom of the controller.

4. The anti-fall protection structure for power tools according to claim 2, characterized in that, When the battery pack is placed inside the protective compartment, the button is located at the upper part of the end of the battery pack near the first opening. An operating space for fingers to be inserted is formed between the button and the top of the protective compartment. The bottom of the protective compartment is provided with a second opening, one end of which is connected to the lower end of the first opening.

5. The anti-fall protection structure for power tools according to claim 2, characterized in that, The top of the battery pack is provided with an abutment portion that contacts the third shock absorber. The abutment portion is a slope, and when the battery pack is placed in the battery compartment, the slope is inclined in a first direction.

6. The anti-fall protection structure for power tools according to claim 3, characterized in that, The accommodating part includes an upper horizontal plate, a lower horizontal plate, and a vertical plate. The vertical plate is connected between the upper horizontal plate and the lower horizontal plate on one side. The lower surface of the upper horizontal plate serves as the inner top surface, and the upper surface of the lower horizontal plate serves as the inner bottom surface. The upper horizontal plate and the lower horizontal plate form the first accommodating space. The surface of the vertical plate closest to the first accommodating space serves as the inner side surface.

7. The anti-fall protection structure for power tools according to claim 3 or 6, characterized in that, The bottom of the controller is provided with a limiting groove, which extends along the direction in which the controller is inserted into the first accommodating space and passes through the left and right sides of the controller. The inner bottom surface is provided with a limiting protrusion that cooperates with the limiting groove. The limiting protrusion is inserted into the limiting groove to restrict the controller's movement in the front and back directions.

8. The anti-fall protection structure for power tools according to claim 1, characterized in that, The housing and the bottom cover are connected by screws. The housing has a threaded hole, and the bottom cover has a connecting hole. The first shock absorber is a rubber column. The screw passes through the connecting hole and the rubber column in sequence and is threaded to the threaded hole on the housing. The rubber column has a through hole for the screw to pass through. The rod part of the screw passing through the connecting hole can slide relative to the connecting hole.

9. The anti-fall protection structure for power tools according to claim 8, characterized in that, The housing is provided with a connecting post, and a threaded hole is provided on the connecting post. The bottom cover is provided with a mounting groove corresponding to the connecting post. The upper end of the connecting hole is connected to the lower bottom of the mounting groove. The bottom of the bottom cover is provided with a screw groove connected to the lower end of the connecting hole. The first shock absorber is inserted into the mounting groove and fixed. The first shock absorber is provided with a slot opposite to the connecting post. The upper end of the through hole is connected to the bottom of the slot. The connecting post is inserted into the slot and abuts against the bottom of the slot. The screw passes through the connecting hole and the through hole in sequence and is threadedly connected to the threaded hole on the connecting post. The head of the screw is accommodated in the screw groove. The first shock absorber is a circular cylinder. The first shock absorber is provided with several annular grooves in its circumference. The several annular grooves are distributed along the axial direction of the first shock absorber.

10. The anti-fall protection structure for power tools according to claim 3, characterized in that, Windows are provided on the inner walls of the opposite sides of the protective compartment, and heat dissipation holes communicating with the inner cavity are provided on the casing and / or bottom cover.

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