A vibration isolation structure for a power tool and a power tool

Abstract

The application discloses a vibration isolation structure for an electric tool, which is arranged in a housing (100) of the electric tool, the housing comprising at least a first housing part (101) and a second housing part (102) which are decoupled from each other, and the housing further comprises a motion assembly of the electric tool, the motion assembly comprising a support element (400) fixedly arranged in the second housing part, and a driving motor (300) and a motion execution mechanism (200) connected to the support element respectively; the vibration isolation structure comprises: a first decoupling element arranged between the first housing part and the support element, the first decoupling element comprising at least a first elastic element (500) which at least applies an elastic force parallel to a motion direction of the motion execution mechanism, so that the first housing part and the second housing part can at least relatively linearly move along the motion direction of the motion execution mechanism; a second decoupling element arranged between the first housing part and the second housing part, so that the first housing part and the second housing part can at least relatively linearly move in the motion direction of the motion execution mechanism; and / or the second decoupling element is arranged on the first housing part.

Description

Technical Field

[0001] This invention relates to a vibration isolation device, and more particularly to a vibration isolation structure for power tools. Background Technology

[0002] In the field of power tools, power tools, especially those with linear reciprocating motion of their actuators, inevitably generate axial vibrations during use. During operation, this vibration is often transmitted to the power tool's housing, and then to the operator holding the tool, resulting in a negative experience for the user.

[0003] To reduce the adverse effects of such vibrations on the tool itself and the user, one solution is to add a vibration damping structure inside the power tool. However, current vibration damping structures are either complex and take up a large amount of space, or their vibration reduction effect is poor, affecting the normal user experience of the power tool. Summary of the Invention

[0004] One of the objectives of this invention is to provide a vibration isolation structure for power tools, which has a simple structure, can achieve excellent vibration isolation effect, and has good adaptability.

[0005] To achieve the above objectives, the present invention proposes a vibration isolation structure for power tools, which is installed inside the housing of the power tool. The housing includes at least a first housing portion and a second housing portion. The housing also houses an actuating assembly of the power tool. The actuating assembly includes a support element fixedly disposed within the second housing portion, and a drive motor and an actuating mechanism respectively connected to the support element. The vibration isolation structure includes:

[0006] A first decoupling element is disposed between a first housing portion and a support element. The first decoupling element includes at least a first elastic element, which applies an elastic force parallel to the direction of motion of the actuator, such that the first housing portion and the second housing portion can at least move relatively linearly along the direction of motion of the actuator.

[0007] A second decoupling element is disposed between the first housing portion and the second housing portion such that the first housing portion and the second housing portion are capable of relatively linear movement at least along the direction of action of the actuator; and / or the second decoupling element is disposed on the first housing portion.

[0008] Another object of the present invention is to provide a power tool that has greater ease of operation, greater compatibility, and a better user experience.

[0009] Based on this, the present invention also provides a power tool comprising a first unit and a second unit decoupled from each other, and a vibration isolation structure as described above, disposed between the first unit and the second unit and at least partially detachable, wherein:

[0010] The first unit includes: a first housing portion, on which a handle is formed;

[0011] The second unit includes: a second housing portion, a support element fixedly disposed within the second housing portion to be integrally disposed with the second housing portion, an action execution mechanism disposed within the second housing portion and connected to the support element; and a drive motor, which includes a rotor assembly, a motor housing, and a stator assembly fixedly disposed within the motor housing, wherein the rotor assembly is integrally fixedly connected with the support element.

[0012] The vibration isolation structure for power tools described in this invention can effectively isolate vibrations transmitted from the moving parts to the power tool's housing and then to the operator, thereby significantly improving the operator's user experience. Furthermore, this vibration isolation structure is simple in structure, low in manufacturing cost, and adaptable to a variety of power tools.

[0013] The power tool described in this invention has strong compatibility and adaptability. It can be equipped with a vibration isolation structure as needed and has an excellent user experience when the vibration isolation structure is installed. In addition, the vibration isolation structure can be easily removed from the power tool, thereby realizing rapid adaptation and switching to non-vibration-damping power tools. Attached Figure Description

[0014] Figure 1 The vibration isolation structure and the power tool described in this invention are schematically shown from a frontal view in one embodiment.

[0015] Figure 2 The vibration isolation structure and the power tool described in this invention are schematically shown from a top-down perspective in one embodiment.

[0016] Figure 3 The diagram schematically illustrates the vibration isolation structure and the split structure of the power tool described in this invention in one embodiment.

[0017] Figure 4 The diagram schematically illustrates the three-dimensional structure of the vibration isolation structure and power tool described in one embodiment of the present invention. Detailed Implementation

[0018] The vibration isolation structure for power tools and the power tools described in this invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. However, this explanation and description do not constitute an undue limitation on the technical solution of this invention.

[0019] In the field of power tools, power tools, especially those whose actuators undergo linear reciprocating motion, inevitably generate axial vibrations during use. For example, in the case of a handheld hammer drill, the reciprocating rod, driven by the motor, reciprocates linearly along the axis during operation, causing the tool head to perform a reciprocating hammering motion. During the linear reciprocating motion of the reciprocating rod, the vibration is transmitted to the power tool's housing, which houses the reciprocating rod, the connected transmission mechanism, the motor, and related components. This vibration is then transmitted to the operator who is holding the power tool, resulting in a poor user experience.

[0020] Based on this, in one embodiment of the present invention, a vibration isolation structure for power tools is provided, which can effectively prevent the vibration generated by the action of the actuator from being transmitted to the operator.

[0021] Figure 1 The vibration isolation structure and the power tool described in this invention are schematically shown from a frontal view in one embodiment.

[0022] Figure 2 The vibration isolation structure and the power tool described in this invention are schematically shown from a top-down perspective in one embodiment.

[0023] Figure 1 and Figure 2 A hammer drill is schematically shown, comprising a housing 100 and an actuating assembly disposed within the housing. The actuating assembly includes an actuating mechanism 200, a support element 400 connected to the actuating mechanism for providing support, and a drive motor 300 connected to the support element 400. The actuating mechanism 200, such as a reciprocating rod, reciprocates linearly along the axial direction (the direction of motion H of the actuating mechanism) under the drive of the drive motor 300, thereby driving the tool head connected to the reciprocating rod to perform corresponding operations.

[0024] from Figure 1 As can be seen, the drive motor 300 of the electric hammer extends in the L-direction, thus perpendicular to the direction of motion of the actuator 200. This L-shaped layout allows for a larger dimension in the height direction of the handheld tool, enabling the formation of a handle 1011 extending in the height direction, for example... Figure 1 The D-shaped handle shown is easier for users to hold compared to linear power tools where the drive motor shaft is basically parallel to the direction of motion of the actuator 200.

[0025] On the other hand, because the handle 1011 is closer to the actuator, the operator is more likely to perceive the vibration transmitted from the linear reciprocating motion of the actuator 200 to the housing 100.

[0026] To address this problem, the present invention provides, in one embodiment, a vibration isolation structure and a power tool incorporating the vibration isolation structure. Since the vibration isolation structure is part of the power tool, both are described and explained together herein.

[0027] In some embodiments, a vibration isolation structure is disposed within the housing 100 of the power tool, the housing 100 being configured to include at least a first housing portion 101 and a second housing portion 102 decoupled from each other. A handle 1011 is formed on the first housing portion 101 to support a support element 400, such as a flange or impact housing, for mounting an actuation mechanism 200, and is fixedly disposed within the second housing portion 102. The housing also houses an actuation assembly of the power tool, which includes the support element 400 fixedly disposed within the second housing portion, and a drive motor 300 and an actuation mechanism 200 respectively connected to the support element. The vibration isolation structure includes a first decoupling element disposed between the first housing portion 101 and the support element 400, the first decoupling element including at least a first elastic element 500 for moving the first housing portion away from or towards the integrated actuation assembly and the second housing portion, at least in the direction of actuation of the actuation mechanism (i.e., along the H direction). The vibration isolation structure also includes a second decoupling element, which can be disposed between the first housing portion 101 and the second housing portion 102, such that the first housing portion and the second housing portion are decoupled from each other, thereby enabling the first housing portion 101 and the second housing portion 102 to move relatively linearly at least along the direction of action of the actuator (i.e., along the H direction); and / or the second decoupling element may also include a structure disposed on the first housing portion.

[0028] This embodiment decouples the first housing portion 101 and the second housing portion 102 by setting a first decoupling element and a second decoupling element, and allows them to move relatively linearly at least along the direction of motion of the actuator (i.e., along the H direction). This reduces the transmission of vibration to the first housing portion which is decoupled from the second housing portion after the vibration generated by the linear reciprocating motion of the actuator is transmitted to the support element 400 and the second housing portion 102 which is fixedly mounted on the support element. This provides vibration isolation. In addition, under the action of the first elastic element, relative movement can occur between the first housing portion 101 and the second housing portion 102 (along with the support element 400 which is integrally set with the second housing portion through a fixed connection) to reduce or cancel out vibration.

[0029] In some more specific embodiments, the second decoupling element may include an opening formed between the first housing portion 101 and the second housing portion 102, i.e., a gap exists between the first housing portion 101 and the second housing portion 102, particularly between the handle 1011 and the second housing portion 102, so that the first housing portion and the second housing portion are not connected at this point.

[0030] In some other, more specific embodiments, the second decoupling element may include an opening formed in the first housing portion, particularly the handle 1011 having an opening (e.g., for...). Figure 3 The bellows shown is removed (i.e., the opening). Although the opening is entirely formed on the first housing part, when the actuator performs the action, the handle 1011 can still achieve its own lever deformation through the opening, thereby achieving vibration reduction and isolation.

[0031] It should be noted that in some other embodiments, the openings at the two locations mentioned above can be superimposed, that is, there is an opening between the first housing part 101 and the second housing part 102, and there is also an opening on the first housing part.

[0032] In some other, more specific embodiments, in order to further address the problems that the vibration damping effect may be relatively weak and the linear motion of the opening may be unstable when only an opening is provided, the second decoupling element may also include an opening formed between the first housing portion and the second housing portion and a retractable element covering the opening. In a specific example, the retractable element may be a bellows.

[0033] In some other, more specific embodiments, the second decoupling element may also include, for example: Figure 3 The opening formed on the first housing portion and the retractable element 900 covering the opening are shown.

[0034] It should be noted that in some other embodiments, the openings and retractable elements at the two locations mentioned above can be superimposed, that is, there is an opening and a corresponding retractable element between the first housing part 101 and the second housing part 102, and the first housing part also has an opening and a corresponding retractable element.

[0035] like Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, in order to further improve the stability of the vibration isolation structure, the first decoupling element may also include a guide rod 700, which is movably connected between the first housing portion 101 and the support element 400, so as to be able to move linearly at least along the direction of action of the actuator, in order to cooperate with the relative movement between the first housing portion 101 and the second housing portion 102 (that is, between the first housing portion 101 and the support element 400), and to provide guidance for the relative movement between the first housing portion 101 and the second housing portion 102.

[0036] In some more specific implementations, such as Figure 1 and Figure 3 As shown, to further save installation space and to provide a more stable and reliable installation environment for the first elastic element, the first elastic element 500 may include a first helical spring. The first helical spring can be sleeved on the guide rod 700, and both ends of the first helical spring abut against the stepped surface 701 of the guide rod and the support element 400. Furthermore, it should be noted that the first elastic element 500 can be used to move the first housing portion away from or towards the integrated actuating component and the second housing portion, at least in the direction of action of the actuating mechanism (i.e., along the H direction). It can also be used to supplement and strengthen the vibration reduction and isolation achieved by the handle, especially the D-type handle, through its own lever deformation.

[0037] In some more specific implementations, such as Figure 1 As shown, the tail end of the guide rod 700 is fixedly connected to the first housing portion 101 via a fixing connector 704. In some more specific embodiments, the fixing connector 704 may be a separately provided bolt. In other more specific embodiments, to further improve structural stability and further simplify structural design, the fixing connector may be a support column integrally fixed inside the first housing portion 101. For example, the first housing portion 101 includes two half-structures spliced ​​together, which are fixedly connected together by screws, and the support column may also serve as the screw post of the screw. The head end of the guide rod 700 is movably connected to the support element 400. For example, as Figure 3 As shown, in some more specific embodiments, the first end of the guide rod has a first connecting hole 702, which is connected to a second connecting hole 401 on the support element 400 via a first connector 703. At least one of the first connecting hole and the second connecting hole is a slotted hole that extends along the action direction of the actuator in the length direction, so that the guide rod and the support element can move relatively linearly at least along the H direction.

[0038] In a more specific example, both the first and second connecting holes are designed as oblong holes. In this case, the first connector 703 can be constructed as another support column integrally fixed inside the first housing portion 101. This further simplifies the structural design and improves the structural stability. Here, the first and second connecting holes, in conjunction with the corresponding first connector 703 and fixed connector 704, serve both as guides for the relative movement between the first housing portion 101 and the second housing portion 102, and as limiting elements.

[0039] In a more specific example, such as Figure 3 As shown, the first connecting hole 702 can be configured as a slotted hole, and the second connecting hole can be configured as a round hole. Of course, in another example, the first connecting hole can also be configured as a round hole, and the second connecting hole as a slotted hole. In this case, the first connector 703 is configured as an independent connecting pin.

[0040] In addition, in some other more specific embodiments, the tail end of the guide rod 700 may be movably connected to the first housing portion 101, while the head end of the guide rod may be fixedly connected to the support element 400.

[0041] In addition, in some other more specific embodiments, the two ends of the guide rod 700 may be movably connected to the first housing portion and the support element, respectively.

[0042] With the above configuration, the guide rod 700 can move linearly at least in the direction of the action of the actuating element. In some more specific embodiments, taking into account the effect of vibration isolation and damping as well as the stability of the power tool operation, the distance D1 of the linear movement of the guide rod 700 can satisfy: 0 < D1 ≤ 8 mm.

[0043] In some more specific embodiments, taking into account both the vibration isolation and damping effect and the stability of the power tool operation, the relative movement distance D2 between the first housing part 101 and the second housing part 102 satisfies: 0.5mm≤D2.

[0044] In some implementations, such as Figure 1As shown, a second elastic element 600 is further provided between the first housing portion 101 and the drive motor 300, and the second elastic element 600 is arranged non-collinearly with the first elastic element 500. The first elastic element 500 applies at least an elastic force parallel to the operating direction of the actuator, and the second elastic element 600 also applies at least an elastic force parallel to the operating direction of the actuator. It should be noted that in this embodiment, the first elastic element 500 and the second elastic element 600 only need to be configured such that at least a portion of their elastic force is parallel to the operating direction of the actuator; therefore, their orientation does not necessarily need to be parallel to the operating direction H of the actuator. Of course, in a more preferred embodiment, the orientation of both the first elastic element 500 and the second elastic element 600 can be parallel to the operating direction H of the actuator. In this case, the first elastic element 500 and the second elastic element 600 are arranged parallel to each other. Of course, in other optional embodiments, the first elastic element and the second elastic element can also be arranged non-parallel. Furthermore, Figure 1 In the embodiment shown, a first elastic element 500 and a second elastic element 600 are respectively set at two different positions in the height direction of the power tool so that the entire power tool can be subjected to a balanced elastic force for vibration isolation and damping, thereby achieving a better vibration isolation and damping effect.

[0045] In some more specific embodiments, the first elastic element 500 may include a first helical spring, and / or the second elastic element 600 may also include a second helical spring. Of course, the first and second elastic elements may also be other elastic elements, such as leaf springs or similar elastic elements, that apply elastic force at least in a direction parallel to the direction of action of the actuator.

[0046] like Figure 3 As shown, in some more specific embodiments, the second helical spring may be disposed on a spring seat 303 on the housing of the drive motor 300.

[0047] In one embodiment, the present invention also provides a power tool, such as... Figure 3 As shown, the power tool includes two integrated units decoupled from each other, a first unit 1 and a second unit 2, and a detachable vibration isolation structure as described above disposed between the first unit 1 and the second unit 2.

[0048] The first unit 1 includes a first housing portion 101, on which a handle 1011 is formed. In a more specific embodiment, the handle 1011 is D-shaped.

[0049] The second unit 2 includes: a second housing portion 102, a support element 400 fixedly disposed within the second housing portion and integrally disposed with the second housing portion, an actuation mechanism 200 disposed within the second housing portion and connected to the support element; and a drive motor 300. The drive motor 300 includes a rotor assembly, a motor housing 305, and a stator assembly fixedly disposed within the motor housing 305.

[0050] like Figure 3 As shown, in some more specific embodiments, the direction of motion of the actuator 200 of the power tool is not parallel to the direction of the motor shaft of the drive motor 300. In some more specific examples, the direction of motion of the actuator 200 of the power tool is perpendicular to the direction of the motor shaft of the drive motor 300 to form an L-shaped power tool, such as an L-shaped hammer drill.

[0051] With this configuration, the first unit and the second unit in this invention are relatively independent of each other, thus greatly reducing the vibration generated by the actuator of the second unit from being transmitted to the first unit, especially the handle of the first unit.

[0052] In some more specific implementations, such as Figure 2 and Figure 4 As shown, the second housing portion 102 and the support element 400 can be fixedly connected by a second connector 800 mounted from the second housing portion 102 toward the first housing portion 101, and the second connector 800 is not fixedly connected to the first housing portion 101.

[0053] With this configuration, the power tool can be easily and quickly switched between vibration-damped and non-vibration-damped versions with maximum compatibility. For example, when the vibration isolation structure described above is installed, the power tool exhibits excellent vibration reduction. When a non-vibration-damped version is required, the vibration isolation structure can be removed, and the support element 400 and the second housing part 102 can be fixedly connected using a second connector 800 mounted from the second housing part 102 toward the first housing part 101. The tail end of the second connector is also provided with a thread for connection with the first housing part. Of course, in some other embodiments, when a non-vibration-damped version is required, the first elastic element and / or the second elastic element may not be removed. In this case, when the first housing part, the second housing part, and the support element are integrally fixedly connected, the first elastic element and / or the second elastic element can be used as a pre-tightening element for the screw.

[0054] In some more specific embodiments, where there is no fixed connection between the second connector 800 and the first housing portion, such as... Figure 4 As shown, the tail end of the second connector 800 is configured as a guide portion 801 without threads, as... Figure 2As shown, the guide portion is inserted into the guide hole 1014 of the first housing portion 101, thereby providing guidance for the movement of the support element 400 relative to the first housing portion 101 and further improving the stability of the vibration isolation structure.

[0055] like Figure 3 As shown, although the drive motor 300 is located below the support element 400, in some embodiments, the structural shape of the first housing portion can be configured such that when the first housing portion 101 and the second housing portion 102 are assembled together, the first housing portion 101 at least partially covers the motor housing 305 of the drive motor 300. For example, in a more specific embodiment, the first housing portion 101 can completely cover the motor housing 305 of the drive motor 300. This arrangement can further increase the weight of the first housing portion 101 and accommodate as many power tool components as possible within the first unit. For example, the first unit can accommodate guide rods, motor switches and their PCBAs, batteries and / or power cords, thereby increasing the weight of the first unit to optimize its mass distribution and achieve better vibration isolation and damping effects.

[0056] Furthermore, it should be noted that since the drive motor 300 is mounted on the support element 400, when the support element 400 moves relative to the first housing portion 101, the drive motor 300 also moves relative to the first housing portion 101. In some more specific embodiments, the distance the drive motor 300 moves relative to the first housing portion 101 is equal to the distance the support element 400 moves relative to the first housing portion 101. In this way, the power tool can achieve a more stable vibration isolation and damping effect.

[0057] To further ensure the stability of the movement of the drive motor 300 relative to the first housing portion 101, in some more specific embodiments, such as Figure 1 and Figure 4 As shown, the inner wall of the first housing portion 101 is provided with protruding limiting pins 1012 and 1017, and correspondingly, the outer wall of the motor housing 305 is provided with limiting grooves 301 and 304 that respectively cooperate with the limiting pins 1012 and 1017. In some more specific embodiments, in order to further simplify the structural arrangement, the limiting pins can be support columns spliced ​​together by two halves of the first housing portion.

[0058] Furthermore, to further ensure the stability of the drive motor 300's movement relative to the first housing portion 101, a guide element is provided between the inner wall of the first housing portion 101 and the outer wall of the motor housing 305. For example, such as Figure 4As shown, the guide rib 1013 provided on the inner wall of the first housing part 101 and the guide groove 302 on the housing of the drive motor 300 adapted thereto, when the drive motor 300 moves relative to the first housing part 101, the guide rib 1013 is provided in the guide groove 302 and slides relative to the guide groove, thereby providing a guiding effect for movement in the H direction.

[0059] Of course, in other, more specific embodiments, the guide groove can be provided on the inner wall of the first housing part, while the guide rib or similar element that slides along the guide groove can be provided on the housing of the drive motor.

[0060] In some embodiments, the travel distance of the drive motor 300 relative to the first housing portion 101 is equal to the travel distance of the support element 400 relative to the first housing portion 101.

[0061] It should be noted that the moving distance of the drive motor 300 relative to the first housing part 101 is equal to the moving distance of the support element 400 relative to the first housing part 101, indicating that the drive motor and the support element are integrated at least in the direction of action of the actuator (i.e., in the H direction).

[0062] In some more specific embodiments, the drive motor and the support element can also be integrated in both the H and L directions. For example, the rotor assembly can be fixedly connected to the support element 400 by first screws 820 (e.g., two screws), and the stator assembly can be fixedly connected to the support element 400 by second screws 810 (e.g., four screws) through the motor housing located outside it.

[0063] As described above, in some other embodiments, the drive motor and support element can also be integrated only in the H direction. For example, the rotor assembly can be fixedly connected to the support element 400 with screws, achieving integration in both the H and L directions. However, the motor housing 305 and the stator assembly fixed within the motor housing 305 achieve a fixed fit connection in the H direction through the shape matching between the motor housing 305 and the support element 400, for example, through the matching fit of protrusions and grooves. In addition, the motor housing 305, through the cooperation of the aforementioned limiting pins 1012, 1017 and limiting grooves 301, 303, achieves not only the guiding function in the H direction but also the limiting function in the L direction. Similarly, the cooperation of the guide rib 1013 and the guide groove 302 achieves not only the guiding function in the H direction but also the limiting function in the L direction. Thus, compared with the structure that is integrated in both the H and L directions, the cost of the second screw 810 and its assembly can be saved.

[0064] Furthermore, when the vibration isolation structure is removed from the first housing part 101 and the second housing part 102 and they are fixedly connected together by the second connector 800, there is no relative movement between the first housing part 101 and the second housing part 102. In this case, the connecting screws and their assembly costs can still be eliminated using the aforementioned structure. Simultaneously, since there is no relative movement between the first housing part 101 and the second housing part 102, the limiting grooves 301 and 304 can be constructed as non-opening holes that mate with the limiting pins 1012 and 1017, thereby achieving better positioning of the drive motor 300.

[0065] In some embodiments, since the second housing portion and the support element 400 can be fixedly connected even when there is no fixed connection between the second connector 800 and the first housing portion, the front end of the second housing portion 102 can be sealed to the actuator 200, and the rear end of the second housing portion 102 can be sealed to the support element 400. This arrangement eliminates the need for an intermediate sealing housing between the second housing portion and the actuator and / or support element, thereby further simplifying the structure.

[0066] In some more specific implementations, such as Figure 4 As shown, the support element 400 extends outward from both sides of the middle portion to form wings 402, which can be inserted into the wing grooves 1018 on the inner wall of the first housing portion 101, thereby further guiding the movement of the support element 400 relative to the first housing portion 101, so as to further improve the stability of the vibration isolation structure.

[0067] It should be noted that although the above description uses an L-shaped electric hammer in which the motor shaft of the drive motor is perpendicular to the direction of motion of the actuator as an example, the vibration isolation structure described in this invention can also be applied to other power tools in which the direction of motion of the actuator is not parallel to the direction of the motor shaft of the drive motor, and it is not necessarily required that the direction of the motor shaft be perpendicular to the direction of motion of the actuator.

[0068] It should also be noted that the vibration isolation structure described in this invention can also be applied to other power tools that perform linear reciprocating motion, such as reciprocating saws, electric picks, or similar power tools in other embodiments.

[0069] Similarly, in some specific embodiments, the power tool described in this invention can be an electric hammer, while in other embodiments, the power tool can also be other tools that perform linear reciprocating motion, such as a reciprocating saw, an electric pick, or similar power tools.

[0070] It should be noted that the prior art portion of the protection scope of this invention is not limited to the embodiments given in this invention document. All prior art that does not contradict the solution of this invention, including but not limited to prior patent documents, prior publications, prior public uses, etc., can be included in the protection scope of this invention.

[0071] Furthermore, the combination of the technical features in this case is not limited to the combination methods described in the claims of this case or the combination methods described in the specific embodiments. All technical features described in this case can be freely combined or combined in any way, unless they contradict each other.

[0072] It should also be noted that the embodiments listed above are merely specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and similar changes or modifications made thereto are those that can be directly derived or easily conceived by those skilled in the art from the content disclosed in the present invention, and should all fall within the protection scope of the present invention.

Claims

1. A vibration isolation structure for power tools, characterized in that, It is used to be installed inside the housing (100) of a power tool, the housing including at least a first housing portion (101) and a second housing portion (102), and the housing also provides an actuating assembly of the power tool, the actuating assembly including a support element (400) fixedly installed in the second housing portion, and a drive motor (300) and an actuating mechanism (200) respectively connected to the support element; the vibration isolation structure includes: A first decoupling element is disposed between a first housing portion and a support element. The first decoupling element includes at least a first elastic element (500) that applies an elastic force parallel to the direction of motion of the actuator, such that the first housing portion and the second housing portion can at least move relatively linearly along the direction of motion of the actuator. A second decoupling element is disposed between the first housing portion and the second housing portion such that the first housing portion and the second housing portion are capable of relatively linear movement at least along the direction of action of the actuator; and / or the second decoupling element is disposed on the first housing portion.

2. The vibration isolation structure as described in claim 1, characterized in that, The first decoupling element further includes a guide rod (700) movably connected between the first housing portion and the support element.

3. The vibration isolation structure as described in claim 2, characterized in that, The first elastic element includes a first helical spring, which is sleeved on the guide rod, with both ends of the first helical spring abutting between the stepped surface (701) of the guide rod and the support element.

4. The vibration isolation structure as described in claim 2, characterized in that, The tail end of the guide rod is used for fixed connection with the first housing part, and the head end of the guide rod is used for movably connection with the support element.

5. The vibration isolation structure as described in claim 4, characterized in that, The guide rod has a first connecting hole (702) at its head end, which is used to connect to a second connecting hole (401) on the support element via a first connector (703). At least one of the first connecting hole and the second connecting hole is a waist hole that extends along the action direction of the action actuator in the length direction.

6. The vibration isolation structure as described in claim 1, characterized in that, The second decoupling element includes at least one of the following: An opening is formed between the first housing portion and the second housing portion; An opening formed in the first housing portion; An opening formed between the first housing portion and the second housing portion, and a retractable element covering the opening; An opening formed on the first housing portion and a retractable element (900) covering the opening.

7. The vibration isolation structure as described in claim 1, characterized in that, It also includes a second elastic element (600) for being disposed between the first housing portion and the drive motor to apply an elastic force at least parallel to the direction of action of the actuator, the second elastic element being disposed non-collinearly with the first elastic element.

8. The vibration isolation structure as described in claim 7, characterized in that, The second elastic element includes a second helical spring.

9. A power tool, characterized in that, It includes a first unit and a second unit decoupled from each other, and a vibration isolation structure as described in any one of claims 1-7 disposed between the first unit and the second unit, which is at least partially detachable, wherein: The first unit includes: a first housing portion, on which a handle is formed; The second unit includes: a second housing portion, a support element (400) fixedly disposed within the second housing portion and integrally disposed with the second housing portion, an actuation mechanism (200) disposed within the second housing portion and connected to the support element; and a drive motor (300) including a rotor assembly, a motor housing, and a stator assembly fixedly disposed within the motor housing, wherein the rotor assembly is integrally fixedly connected with the support element.

10. The power tool as claimed in claim 9, characterized in that, The direction of motion of the actuator is not parallel to the direction of the motor shaft of the drive motor; and / or the handle is D-shaped.

11. The power tool as claimed in claim 9, characterized in that, The second housing portion (102) and the support element (400) are fixedly connected by a second connector (800) mounted from the second housing portion (102) toward the first housing portion (101).

12. The power tool as claimed in claim 11, characterized in that, The tail end of the second connector extends as a guide portion (801), which is inserted into the guide hole (1014) of the first housing portion.

13. The power tool as claimed in claim 9, characterized in that, The first housing at least partially covers the motor housing (305) of the drive motor.

14. The power tool as claimed in claim 9, characterized in that: The inner wall of the first housing portion is provided with protruding limiting pins (1012, 1017), and the outer wall of the motor housing is provided with limiting grooves (301, 304) that cooperate with the limiting pins; and / or A limiting guide element (302, 1013) is provided between the inner wall of the first housing portion and the motor housing; and / or The first housing portion is provided with a wing groove (1018), and the support element has an extended wing (402) which is correspondingly disposed in the wing groove; The front end of the second housing portion is sealed to the actuator; and / or The rear end of the second housing portion is sealed to the support element.

15. The power tool as claimed in claim 9, characterized in that, The distance the drive motor moves relative to the first housing portion is equal to the distance the support element moves relative to the first housing portion.

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