Controller damping structure of electric tool
By using multiple shock-absorbing components to support the controller in the controller's shock-absorbing structure, the problem of damage caused by power tool vibration and drops is solved, and effective protection of the controller is achieved.
Patent Information
- Application Number
- CN202520160167.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Power tools generate vibrations during operation, which are transmitted to the controller, causing damage to the controller. The impact of the tool falling can also damage the controller.
A vibration damping structure for a power tool controller is designed, including a housing and a controller. The housing consists of a casing and a removable bottom cover. The controller is inserted into the housing's accommodating space. Multiple damping components are provided to support the controller in different directions, including a first, second, and third damping component, which supports the controller's side, top, and bottom, respectively, to reduce vibration and impact.
It effectively reduces controller vibration and impact when dropped, preventing controller damage and improving the reliability and service life of power tools.
Smart Images

Figure CN223798479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electric tool, and more particularly to a shock-absorbing structure for the controller of an electric tool. Background Technology
[0002] Power tools are mechanized devices that use an electric motor as power and drive the working head through a transmission mechanism or electric motor. They have the advantages of being easy to carry, simple to operate, and versatile. They can greatly reduce labor intensity, improve work efficiency, and realize the mechanization of manual operation. Examples include electric hammers, electric picks, electric screwdrivers, and electric drills. Power tools are generally equipped with a controller to control the operating status of the electric motor.
[0003] For example, Chinese utility model patent CN211517389U discloses a high-efficiency electric hammer, which includes an electric hammer body, a brushless motor inside the electric hammer body, a controller located below the brushless motor, a rotary speed adjustment assembly located on the outside of the electric hammer body, and a battery pack for power supply on one side of the electric hammer body.
[0004] For example, Chinese utility model patent CN219426715U discloses an automatic locking electric hammer, which includes: a housing; a controller, disposed within the housing; a rotating sleeve, disposed within the housing; a motor disposed within the housing and connected to the controller via a signal; a transmission mechanism, connected to the motor, including an intermediate shaft connected to the motor for transmission, an output gear mounted on the intermediate shaft, and a rocker arm bearing; and a cylinder assembly, disposed within the rotating sleeve, including: a cylinder housed within the rotating sleeve and connected to a rocker arm of the rocker arm bearing, a hammer housed within the cylinder, and a striking rod cooperating with the hammer.
[0005] During operation, power tools generate vibrations, which are transmitted to the controller, causing it to vibrate as well. Prolonged vibration can easily damage the controller. Furthermore, power tools may fall to the ground during use, and the impact of the fall can also damage the controller. Utility Model Content
[0006] Based on the fact that the power tool will vibrate during operation, and the vibration will be transmitted to the controller, causing the controller to vibrate as well, prolonged vibration can easily damage the controller. In addition, the power tool may fall to the ground during use, and the impact of the fall may also damage the controller. Therefore, this utility model provides a vibration damping structure for the controller of a power tool.
[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows: a shock-absorbing structure for the controller of an electric tool, including a housing and a controller. The housing includes a casing and a bottom cover detachably connected to the bottom of the casing. The bottom cover and the casing form an inner cavity. The controller is disposed in the inner cavity. The casing includes a left half-shell and a right half-shell detachably connected together. Both the left and right half-shells are provided with receiving portions. The receiving portion on the left half-shell is opposite to the receiving portion on the right half-shell. The receiving portion has an inner top surface located above, an inner bottom surface located below, and an inner side surface located on one side of the inner top surface and the inner bottom surface. The top and bottom surfaces face each other and form an accommodating space between them. The other side of the top and bottom surfaces of the inner surface is provided with a socket for inserting the controller into the accommodating space. The socket faces the inner surface. The two sides of the controller are respectively inserted into the accommodating spaces on both sides. A first shock absorber is provided between the side of the controller inserted into the accommodating space and the inner surface. The first shock absorber is supported between the side of the controller and the inner surface. A second shock absorber is provided above the controller. The second shock absorber is supported between the top surface of the inner surface and the top of the controller. A third shock absorber is provided below the controller. The third shock absorber is supported between the bottom cover and the bottom of the controller.
[0008] A further preferred technical solution of this utility model is as follows: 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, the upper surface of the lower horizontal plate serves as the inner bottom surface, the accommodating space is formed between the upper horizontal plate and the lower horizontal plate, and the surface of the vertical plate close to the accommodating space serves as the inner side surface.
[0009] A further preferred technical solution of this utility model is as follows: the bottom of the controller is provided with a limiting groove, the limiting groove extends along the direction in which the controller is inserted into the accommodating space and passes through the left and right sides of the controller, and the inner bottom surface is provided with a limiting protrusion that cooperates with the limiting groove, the limiting protrusion being inserted into the limiting groove to restrict the controller's movement in the front and back directions.
[0010] A further preferred embodiment of this invention is that the first shock absorber is a sponge.
[0011] A further preferred embodiment of this utility model is: the second shock absorber is a U-shaped sponge, which is inserted into the upper horizontal plate.
[0012] A further preferred technical solution of this utility model is as follows: the third shock absorber is a rubber column, the bottom cover is provided with a mounting groove located below the controller, the third shock absorber is inserted into the mounting groove and fixed, the upper end of the third shock absorber protrudes out of the mounting groove, and the upper surface of the third shock absorber abuts against the bottom of the controller.
[0013] A further preferred embodiment of this utility model is as follows: the bottom of the housing is provided with a bottom opening, the receiving portions on the left and right half-shells are located outside the bottom opening, and the bottom cover covers the outside of the receiving portions on both sides.
[0014] A further preferred embodiment of this utility model is as follows: a support frame with a bottom opening extending downwards is provided on the left half shell and the right half shell, the vertical plate is connected to the support frame, and a reinforcing rib is provided between the vertical plate and the support frame.
[0015] A further preferred embodiment of this utility model is: a fourth shock absorber is provided between the bottom cover and the housing, and the fourth shock absorber is supported between the bottom cover and the housing.
[0016] A further preferred embodiment of this utility model is that the receiving part is a receiving groove.
[0017] Compared with the prior art, the advantages of this utility model are that the housing includes a casing and a bottom cover detachably connected to the bottom of the casing. The bottom cover and the casing form an inner cavity. The casing includes a left half-shell and a right half-shell detachably connected together. Both the left half-shell and the right half-shell are provided with receiving portions. The receiving portions on the left half-shell are opposite to the receiving portions on the right half-shell. The receiving portions have an inner top surface located at the top, an inner bottom surface located at the bottom, and an inner side surface located on one side of the inner top surface and the inner bottom surface. The inner top surface and the inner bottom surface are opposite to each other and form a receiving space between the two sides. The other side of the inner bottom surface and the inner top surface is provided with a socket for inserting the controller into the receiving space. The socket is opposite to the inner side surface. During installation, the two sides of the controller are inserted into the receiving spaces on both sides respectively. Then, the left half-shell and the right half-shell are fixedly connected together, so that the receiving portions on both sides clamp and fix the controller in the middle. Then, the bottom cover is fixedly connected to the bottom of the casing to complete the installation. This structure facilitates the installation of the controller.
[0018] A first shock absorber is installed between the side and inner side of the controller insertion space, supporting the controller between the side and inner side. A second shock absorber is installed above the controller, supporting the controller between the inner top surface and the top of the controller. A third shock absorber is installed below the controller, supporting the controller between the bottom cover and the bottom of the controller. The first shock absorbers on both sides are used to reduce the vibration of the controller in the left and right direction. The second shock absorber above and the third shock absorber below work together to reduce the vibration of the controller in the up and down direction. The vibration of the controller in the front and back direction can be reduced by the friction of the first, second and third shock absorbers on the controller, so as to prevent the controller from being damaged by prolonged vibration when the power tool is working. In addition, when the power tool is dropped on the ground, the first, second and third shock absorbers can also reduce the impact transmitted to the controller, providing good protection for the controller. Attached Figure Description
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.
[0020] Figure 1 This is a schematic diagram of the structure of this patent;
[0021] Figure 2 This is a cross-sectional illustration of the patent. Figure 1 ;
[0022] Figure 3 for Figure 2 Enlarged view of a portion at point A;
[0023] Figure 4 This is a cross-sectional illustration of the patent. Figure 2 ;
[0024] Figure 5 for Figure 4 A magnified view of section B;
[0025] Figure 6 This is a cross-sectional illustration of the patent. Figure 3 ;
[0026] Figure 7 for Figure 6 A magnified view of a portion at point C;
[0027] Figure 8 This is a breakdown diagram of the components of this patent;
[0028] Figure 9 This is a schematic diagram of the bottom cover structure;
[0029] Figure 10 This is a schematic diagram of the left half of the shell;
[0030] Figure 11 This is a schematic diagram of the right half of the shell.
[0031] In the diagram: 1. Housing; 2. Casing; 3. Bottom cover; 4. Heat dissipation hole; 5. Controller; 6. Inner cavity; 7. Upper horizontal plate; 8. Second shock absorber; 9. Lower horizontal plate; 10. Inner bottom surface; 11. Limiting protrusion; 12. Limiting groove; 13. First mounting groove; 14. Third shock absorber; 15. Left half-shell; 16. Right half-shell; 17. Support frame; 18. Accommodation part; 19. First shock absorber; 20. Inner top surface; 21. Vertical plate; 22. Inner side surface; 23. Outer edge; 24. Protruding edge; 25. Screw groove; 26. Head; 27. Connecting hole; 28. Second mounting groove; 29. Fourth shock absorber; 30. Annular groove; 31. Through hole; 32. Screw; 33. Slot; 34. Connecting post; 35. Threaded hole; 36. Reinforcing rib; 37. Accommodation space; 38. Bottom opening. Detailed Implementation
[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.
[0033] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.
[0034] Figures 1-11 As shown, the controller shock absorption structure of the power tool includes a housing 1 and a controller 5. The housing 1 includes a casing 2 and a bottom cover 3 detachably connected to the bottom of the casing 2. The bottom cover 3 and the casing 2 form an inner cavity 6. The controller 5 is located in the inner cavity 6. The casing 2 includes a left half-shell 15 and a right half-shell 16 detachably connected together. Both the left half-shell 15 and the right half-shell 16 are provided with a receiving portion 18. The receiving portion 18 on the left half-shell 15 is opposite to the receiving portion 18 on the right half-shell 16. The receiving portion 18 has an inner top surface 20 located above, an inner bottom surface 10 located below, and an inner side surface 22 located on one side of the inner top surface 20 and the inner bottom surface 10. The inner top surface 20 and the inner bottom surface 10 are opposite to each other. A receiving space 37 is formed between the two. The other side of the inner top surface 20 and the inner bottom surface 10 is provided with a socket for the controller 5 to be inserted into the receiving space 37. The socket is opposite to the inner side surface 22. The two sides of the controller 5 are respectively inserted into the receiving spaces 37 on both sides. A first shock absorber 19 is provided between the side of the controller 5 inserted into the receiving space 37 and the inner side surface 22. The first shock absorber 19 is supported between the side of the controller 5 and the inner side surface 22. A second shock absorber 8 is provided above the controller 5. The second shock absorber 8 is supported between the inner top surface 20 and the top of the controller 5. A third shock absorber 14 is provided below the controller 5. The third shock absorber 14 is supported between the bottom cover 3 and the bottom of the controller 5.
[0035] The first shock absorber 19 on both sides is used to reduce the vibration of the controller 5 in the left and right direction. The second shock absorber 8 above and the third shock absorber 14 below work together to reduce the vibration of the controller 5 in the up and down direction. The vibration of the controller 5 in the front and back direction can be reduced by the friction of the first shock absorber 19, the second shock absorber 8 and the third shock absorber 14 on the controller 5, so as to prevent the controller 5 from being damaged by long-term vibration when the power tool is working. In addition, when the power tool falls to the ground, the first shock absorber 19, the second shock absorber 8 and the third shock absorber 14 can also reduce the impact of the fall to the controller 5, thus providing good protection for the controller 5.
[0036] The above structure also facilitates the installation of the controller 5. During installation, the two sides of the controller 5 are inserted into the two side receiving spaces 37 respectively, and then the left half shell 15 and the right half shell 16 are fixedly connected together so that the receiving parts 18 on both sides clamp the controller 5 in the middle and fix it. Then the bottom cover 3 is fixedly connected to the bottom of the housing 2 to complete the installation.
[0037] The left half-shell 15 and the right half-shell 16 are connected by screws.
[0038] Figure 4 , Figure 10 , Figure 11 As shown, preferably, the accommodating part 18 includes an upper horizontal plate 7, a lower horizontal plate 9 and a vertical plate 21. The vertical plate 21 is connected between the upper horizontal plate 7 and the lower horizontal plate 9 on one side. The lower surface of the upper horizontal plate 7 serves as the inner top surface 20, and the upper surface of the lower horizontal plate 9 serves as the inner bottom surface 10. An accommodating space 37 is formed between the upper horizontal plate 7 and the lower horizontal plate 9. The side surface of the vertical plate 21 closest to the accommodating space 37 serves as the inner side surface 22.
[0039] The bottom of the aforementioned housing 2 is provided with a bottom opening 38. The receiving portions 18 on the left half-shell 15 and the right half-shell 16 are located outside the bottom opening 38. The bottom cover 3 covers the outside of the receiving portions 18 on both sides. The receiving portions 18 on both sides are located on the outside of the housing 2. When the left half-shell 15 and the right half-shell 16 are assembled, the two receiving portions 18 on the outside facilitate the user's installation of the shock absorber and the controller 5.
[0040] The left half shell 15 and the right half shell 16 are provided with support frames 17 extending downward to the bottom opening 38. The vertical plate 21 is connected to the support frame 17. The vertical plate 21 and the support frame 17 are provided with reinforcing ribs 36 to ensure the strength of the two side accommodating parts 18.
[0041] The upper horizontal plate 7, the vertical plate 21, the lower horizontal plate 9 and the support frame 17 are integrally formed, and the left half shell 15 and the right half shell 16 are integrally formed with the support frame 17 connected to them.
[0042] Figure 4 , Figure 5As shown, preferably, the first shock absorber 19 is a sponge. The first shock absorber 19 can be glued to the inner side 22 for easy installation. Alternatively, the first shock absorber 19 can be directly placed in the receiving part 18 and attached to the inner side 22.
[0043] Preferably, the second shock absorber 8 is a U-shaped sponge, which is inserted into the upper horizontal plate 7 for fixation. When the controller 5 is installed, there is no need for other hands to hold the second shock absorber 8, which facilitates the installation of the controller 5.
[0044] Figure 2 , Figure 3 As shown, preferably, the third shock absorber 14 is a rubber column. The bottom cover 3 has a first mounting groove 13 located below the controller 5. The third shock absorber 14 is inserted into the first mounting groove 13 and fixed. The upper end of the third shock absorber 14 protrudes from the first mounting groove 13, and the upper surface of the third shock absorber 14 abuts against the bottom of the controller 5. The third shock absorber 14 is fixedly installed on the bottom cover 3 so that it is not necessary to support the third shock absorber 14 during installation. The bottom cover 3 can be directly connected to the bottom of the housing 2, which facilitates installation.
[0045] The bottom of the controller 5 is provided with a limiting groove 12, which extends along the direction in which the controller 5 is inserted into the receiving space 37 and passes through the left and right sides of the controller 5. The inner bottom surface 10 is provided with a limiting protrusion 11 that mates with the limiting groove 12. The limiting protrusion 11 inserts into the limiting groove 12 to restrict the controller 5's forward and backward movement, limiting its movement within a small range and preventing large forward and backward movements due to vibration. There is a gap between the limiting protrusion 11 and the inner walls of the limiting groove 12 to allow the controller 5 to float slightly. The limiting protrusion 11 and the limiting groove 12 only serve a limiting function, preventing vibration from being directly transmitted to the controller 5 through the limiting protrusion 11. Furthermore, with this structure, when the controller 5 is inserted into the receiving parts 18 on both sides, the limiting protrusion 11 can be easily engaged in the limiting groove 12, facilitating assembly.
[0046] A fourth shock absorber 29 is provided between the bottom cover 3 and the housing 2. The fourth shock absorber 29 is supported between the bottom cover 3 and the housing 2. If the power tool is accidentally dropped during use, the fourth shock absorber 29 between the bottom cover 3 and the housing 2 can provide good protection for the whole machine and prevent the machine from cracking due to the drop.
[0047] Figures 6-9As shown, the housing 2 and the bottom cover 3 are connected by screws 32. The housing 2 has a threaded hole 35, and the bottom cover 3 has a connecting hole 27. The fourth shock absorber 29 is a rubber column. The screw 32 passes through the connecting hole 27 and the fourth shock absorber 29 in sequence and is threaded to the threaded hole 35 on the housing 2. The fourth shock absorber 29 has a through hole 31 for the screw 32 to pass through. The rod part of the screw 32 passing through the connecting hole 27 can slide relative to the connecting hole 27, so that the bottom cover 3 and the housing 2 can float relative to each other. During the floating process, the bottom cover 3 and the housing 2 squeeze the fourth shock absorber 29 in the middle, thereby achieving buffering and shock absorption through the fourth shock absorber 29 in the middle.
[0048] Specifically, the housing 2 is provided with a connecting post 34, and a threaded hole 35 is provided on the lower end face of the connecting post 34. The bottom cover 3 is provided with a second mounting groove 28 corresponding to the connecting post 34. The upper end of the connecting hole 27 communicates with the lower bottom of the second mounting groove 28. The bottom of the bottom cover 3 is provided with a screw groove 25 communicating with the lower end of the connecting hole 27. Steps are provided between the middle connecting hole 27 and the upper and lower second mounting grooves 28 and screw grooves 25. The fourth shock absorber 29 is inserted into the second mounting groove 28 for fixation. The four shock absorbers 29 are provided with slots 33 opposite to the connecting post 34. The upper end of the through hole 31 is connected to the bottom of the slot 33. A step is formed between the through hole 31 and the bottom of the slot 33. The connecting post 34 is inserted into the slot 33 and abuts against the bottom of the slot 33. The screw 32 passes through the connecting hole 27 and the through hole 31 in sequence and is threaded to the threaded hole 35 on the connecting post 34. The head 26 of the screw 32 is housed in the screw groove 25, so that the screw 32 is not exposed to the outside, making the overall appearance more beautiful.
[0049] The fourth damping member 29 is a circular cylinder, and the fourth damping member 29 is provided with a plurality of annular grooves 30 in the circumferential direction. If the annular grooves 30 are distributed along the axial direction of the fourth damping member 29, preferably, the annular grooves 30 are V-shaped grooves extending in annularly. By providing annular grooves 30 in the circumferential direction of the fourth damping member 29, the fourth damping member 29 has better axial extensibility, so as to achieve better buffering and damping effect.
[0050] The aforementioned annular groove 30 is provided within the length range of the through hole 31 of the first damping member 19 to avoid reducing the wall thickness of the fourth damping member 29 due to the annular groove 30, thereby affecting its overall support.
[0051] Preferably, the housing 2 is provided with six connecting posts 34, three on each of the left and right sides, and the bottom cover 3 is provided with the same number of second mounting slots 28, connecting holes 27 and screw slots 25 as the connecting posts 34. The second mounting slots 28 correspond one-to-one with the connecting posts 34 above.
[0052] The lower edge of the side wall of the housing 2 is provided with a downward protruding edge 24. The protruding edge 24 is opposite to the upper edge of the side wall of the bottom cover 3 and there is a gap between them. The upper edge of the side wall of the bottom cover 3 is provided with an upward protruding outer edge 23. The outer edge 23 is opposite to the lower edge of the side wall of the housing 2 and there is a gap between them. The outer edge 23 surrounds the outside of the protruding edge 24, making the relative movement between the housing 2 and the bottom cover 3 more stable.
[0053] The housing 2 and / or bottom cover 3 are provided with heat dissipation holes 4 that communicate with the inner cavity 6. The heat dissipation holes 4 are used to dissipate heat from the controller 5.
[0054] Regarding the structure of the aforementioned receiving portion 18, this patent also offers another solution, for example, the receiving portion 18 can also be a receiving groove.
[0055] The shock absorption structure for the controller of the power tool provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A shock-absorbing structure for the controller of a power tool, comprising a housing and a controller, characterized in that, The housing includes a casing and a detachable bottom cover connected to the bottom of the casing. The bottom cover and the casing form an inner cavity, and the controller is disposed within the inner cavity. The casing includes a left half-shell and a right half-shell detachably connected together. Both the left and right half-shells are provided with receiving portions. The receiving portions on the left half-shell are opposite to the receiving portions on the right half-shell. Each receiving portion has an inner top surface located above, an inner bottom surface located below, and an inner side surface located on one side of the inner top surface and the inner bottom surface. The inner top surface and the inner bottom surface are opposite to each other and form a receiving space between them. On the other side of the top and inner bottom surfaces, there is a socket for inserting the controller into the receiving space. The socket is opposite to the inner side surface. The controller is inserted into the receiving spaces on both sides respectively. A first shock absorber is provided between the side of the controller inserted into the receiving space and the inner side surface. The first shock absorber is supported between the side of the controller and the inner side surface. A second shock absorber is provided above the controller. The second shock absorber is supported between the inner top surface and the top of the controller. A third shock absorber is provided below the controller. The third shock absorber is supported between the bottom cover and the bottom of the controller.
2. The controller vibration damping structure for power tools according to claim 1, 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 accommodating space is formed between the upper horizontal plate and the lower horizontal plate. The surface of the vertical plate closest to the accommodating space serves as the inner side surface.
3. The controller vibration damping structure for power tools according to claim 1 or 2, 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 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.
4. The controller vibration damping structure for power tools according to claim 1, characterized in that, The first shock absorber is a sponge.
5. The controller vibration damping structure for power tools according to claim 2, characterized in that, The second shock absorber is a U-shaped sponge, which is inserted into the upper horizontal plate.
6. The controller vibration damping structure for power tools according to claim 1, characterized in that, The third shock absorber is a rubber column. The bottom cover has a mounting groove located below the controller. The third shock absorber is inserted into the mounting groove and fixed. The upper end of the third shock absorber protrudes from the mounting groove, and the upper surface of the third shock absorber abuts against the bottom of the controller.
7. The controller vibration damping structure for power tools according to claim 2, characterized in that, The bottom of the housing has a bottom opening, and the receiving portions on the left and right half-shells are located outside the bottom opening. The bottom cover covers the outside of the receiving portions on both sides.
8. The controller vibration damping structure for power tools according to claim 7, characterized in that, The left and right halves of the shell are provided with support frames that extend downward to the bottom openings. The vertical plate is connected to the support frame, and a reinforcing rib is provided between the vertical plate and the support frame.
9. The controller vibration damping structure for power tools according to claim 1, characterized in that, A fourth shock absorber is provided between the bottom cover and the housing, and the fourth shock absorber is supported between the bottom cover and the housing.
10. The controller vibration damping structure for power tools according to claim 1, characterized in that, The receiving part is a receiving groove.
Citation Information
Patent Citations
Efficient electric hammer
CN211517389U
Automatic locking electric hammer
CN219426715U