A jigsaw

Abstract

The application discloses a curve saw, which comprises a mounting base arranged along the radial periphery of a reciprocating rod and a buffer mechanism arranged on one side of the mounting base along the left-right direction, the mounting base comprises a first clamping seat and a second clamping seat arranged symmetrically along the front-rear direction and opposite to the reciprocating rod, and the first clamping seat and the second clamping seat are provided with notches along the left-right direction, the buffer mechanism comprises a limiting sliding block and an elastic element, and the limiting sliding block can slide between the notches along the left-right direction under the action of the elastic element. In the application, the movable buffer mechanism is arranged to clamp the reciprocating rod together with the mounting base. During the swinging of the reciprocating rod, the limiting sliding block can swing together with the reciprocating rod by overcoming the elastic force of the elastic element, and can be quickly reset to clamp the reciprocating rod again under the action of the elastic force of the elastic element, so that the vibration generated during the cutting operation of the reciprocating rod is absorbed, the reciprocating rod is better positioned, the stability of the cutting process of the curve saw is improved, and the cutting quality of the curve saw is improved.

Description

Technical Field

[0001] This application relates to a jigsaw, and more specifically to a reciprocating rod vibration damping structure for a jigsaw. Background Technology

[0002] A jigsaw is a power tool with a reciprocating saw blade used to cut curves of different shapes. It mainly uses a reciprocating rod to hold the saw blade, and the transmission structure drives the reciprocating rod to move up and down, which in turn drives the saw blade to perform reciprocating cutting action.

[0003] Most jigsaws on the market today use a crank-slider mechanism to convert the rotational motion of the motor into the reciprocating motion of a reciprocating rod. During this process, due to the inherent characteristics of the crank-slider mechanism and its operating method, periodic and significantly varying accelerations and inertial forces are inevitably generated, causing considerable vibration in the reciprocating rod, leading to wear and insufficient cutting accuracy. Common methods to reduce vibration include adding a counterweight to the crank or motor shaft to offset some of the centrifugal force generated by rotational imbalance, or molding a limiting post on the counterweight to directly limit the vibration of the reciprocating rod. However, the vibration reduction effect of these two methods is limited. Directly limiting the vibration of the reciprocating rod with a rigid limiting post may also lead to more severe wear due to uneven force on the reciprocating rod, affecting the jigsaw's performance and reducing its service life. Utility Model Content

[0004] The purpose of this application is to provide a jigsaw that can reduce vibration and wear of the reciprocating rod.

[0005] To achieve the above objectives, this application provides a jigsaw, including a reciprocating rod, a reciprocating rod drive structure, a motor, and a housing. One end of the reciprocating rod holds a saw blade. The reciprocating rod drive structure can convert the rotational motion of the motor into the up-and-down reciprocating motion of the reciprocating rod. The jigsaw is characterized by further including a mounting base arranged along the radial outer periphery of the reciprocating rod. A first buffer mechanism is provided on one side of the mounting base along the left-right direction. The first buffer mechanism restricts the reciprocating rod within the mounting base. When the saw blade is cutting a workpiece, the reciprocating rod can move along the left-right direction. The first buffer mechanism can absorb the vibration generated by the reciprocating rod. The mounting base includes a first retainer and a second retainer arranged symmetrically relative to the reciprocating rod along the front-back direction. The first retainer and the second retainer have a first slot on the same side along the left-right direction, and the mounting base is fixedly disposed relative to the housing.

[0006] Furthermore, the first card holder and the second card holder are fixedly connected by a connecting block along the same side of the left and right direction where the first slot is not provided, and the mounting base is in the form of a U-shape.

[0007] As another preferred embodiment, the first buffer mechanism includes a first limiting slider and a first elastic element. One end of the first elastic element abuts against the first limiting slider, and the other end abuts against the housing. The first limiting slider slides between the first slots in the left-right direction via the first elastic element.

[0008] Furthermore, the inner surfaces of the first card holder and the second card holder are respectively provided with a first slide groove and a second slide groove extending in the left-right direction and symmetrical to the reciprocating rod, and the first limiting slider is slidably connected to the first slide groove and the second slide groove on both sides in the front-back direction.

[0009] Furthermore, the first limiting slider is provided with first sliding protrusions on both sides along the front-back direction, and the first sliding protrusions match the first sliding groove and the second sliding groove.

[0010] Furthermore, a limiting protrusion is provided on the side of the first limiting slider that abuts against the first elastic member, one end of the first elastic member is sleeved on the limiting protrusion, and the other end abuts against the inner wall of the housing.

[0011] As another preferred embodiment, this application also provides a jigsaw, including a reciprocating rod, a reciprocating rod drive structure, a motor, and a housing. One end of the reciprocating rod holds a saw blade. The reciprocating rod drive structure can convert the rotational motion of the motor into the up-and-down reciprocating motion of the reciprocating rod. The jigsaw is characterized by further including a mounting base arranged along the radial outer periphery of the reciprocating rod. A first buffer mechanism is provided on one side of the mounting base along the left-right direction, and a second buffer mechanism is provided on the other side. The first buffer mechanism and the second buffer mechanism confine the reciprocating rod within the mounting base. When the saw blade is cutting a workpiece, the reciprocating rod can move along the left-right direction. The first buffer mechanism and the second buffer mechanism can absorb the vibration generated by the reciprocating rod. The mounting base includes a first retainer and a second retainer arranged symmetrically relative to the reciprocating rod along the front-back direction. The first retainer and the second retainer are respectively provided with a first slot and a second slot on both sides along the left-right direction, and the mounting base is fixedly disposed relative to the housing.

[0012] Furthermore, the first buffer mechanism and the second buffer mechanism are arranged symmetrically with respect to the reciprocating rod in the left-right direction, wherein the first buffer mechanism can slide between the first slots in the left-right direction, and the second buffer mechanism can slide between the second slots in the left-right direction.

[0013] Furthermore, the first buffer mechanism includes a first limiting slider and a first elastic element. One end of the first elastic element abuts against the first limiting slider, and the other end abuts against the housing. The first limiting slider slides between the first slots in the left-right direction via the first elastic element. The second buffer mechanism includes a second limiting slider and a second elastic element. One end of the second elastic element abuts against the second limiting slider, and the other end abuts against the housing. The second limiting slider slides between the second slots in the left-right direction via the second elastic element.

[0014] Furthermore, the inner surfaces of the first card holder and the second card holder are respectively provided with a first slide groove and a second slide groove extending along the left-right direction and symmetrical to the reciprocating rod; the first limiting slider and the second limiting slider are slidably connected to the first slide groove and the second slide groove on both sides along the front-back direction, respectively.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: The jigsaw provided in this application includes a mounting base arranged radially outward from the reciprocating rod and a buffer mechanism disposed on one or both sides of the mounting base in the left-right direction. The mounting base includes a first and a second clamping seat symmetrically arranged relative to the reciprocating rod in the front-back direction, with slots on one or both sides in the left-right direction. The buffer mechanism includes a limiting slider and an elastic element. The limiting slider can slide between corresponding slots in the left-right direction under the action of the elastic element. In this application, by providing movable buffer mechanisms on one or both sides of the reciprocating rod, which, together with the mounting base, clamp the reciprocating rod, the limiting slider overcomes the elastic force of the elastic element and swings along with the reciprocating rod during its swing. It can quickly reset and re-clamp the reciprocating rod under the action of the elastic element. Thus, the movable buffer mechanism absorbs the vibration generated by the reciprocating rod during its swing, providing better limiting of the reciprocating rod while reducing the vibration generated during the cutting operation, improving the stability of the jigsaw cutting process, and enhancing the cutting quality of the jigsaw. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall internal structure of a jigsaw; Figure 2 This is a partial schematic diagram of the reciprocating rod limiting structure of a jigsaw; Figure 3 An exploded view of the reciprocating rod limiting structure of a jigsaw; Figure 4 A separate schematic diagram of the first mounting base; Figure 5 A separate schematic diagram is provided for the second mounting bracket; Figure 6 This is a schematic diagram of the jigsaw housing; Figure 7 This is a partial schematic diagram of another embodiment of the reciprocating rod limiting structure of a jigsaw; Figure 8 An exploded view of another embodiment of the reciprocating rod limiting structure of a jigsaw. Detailed Implementation

[0017] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0019] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0020] In the description of this application, it should be noted that directional terms such as “center”, “lateral”, “longitudinal”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, and “counterclockwise” indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0021] For ease of description, see the description and claims in this application. Figure 1 The coordinate axes are defined as follows: the horizontal direction is defined as left and right, where the direction X indicated by the arrow is right and the opposite direction of X is left; the vertical direction is defined as up and down, where the direction Z indicated by the arrow is up and the opposite direction of Z is down; and the direction Y indicated by the arrow is back and the opposite direction of Y is forward.

[0022] This application provides a jigsaw 1, see [link]. Figure 1The jigsaw 1 includes a reciprocating rod 20, a reciprocating rod drive structure 30, a motor 50, and a housing 60. One end of the reciprocating rod 20 holds a saw blade 70. The reciprocating rod drive structure 30 converts the rotational motion of the motor 50 into the up-and-down reciprocating motion of the reciprocating rod 20, thereby driving the saw blade 70 to perform the up-and-down reciprocating motion to achieve the cutting operation. It is understandable that... Figure 1 Only half of the housing of the jigsaw 1, namely the rear housing 61, is shown in the figure to illustrate the internal structure of the jigsaw 1.

[0023] See Figures 2 to 5 The jigsaw 1 also includes a mounting base 10 arranged radially outward from the reciprocating rod 20. A first buffer mechanism 11 is provided on one side of the mounting base 10 in the left-right direction. The first buffer mechanism 11 can confine the reciprocating rod 20 within the mounting base 10. When the saw blade 70 is cutting a workpiece, the reciprocating rod 20 can move in the left-right direction, and the first buffer mechanism 11 can absorb the vibration generated by the reciprocating rod 20. The mounting base 10 is fixedly disposed relative to the housing 60. The mounting base 10 includes a first retainer 131 and a second retainer 132 arranged symmetrically with respect to the reciprocating rod 20 in the front-back direction. The first retainer 131 and the second retainer 132 have a first slot 133 on the same side in the left-right direction. The first buffer mechanism 11 can slide between the first slots 133 in the left-right direction.

[0024] In one embodiment of this application, see Figures 2 to 5 The first buffer mechanism 11 includes a first limiting slider 14 and a first elastic element 15. One end of the first elastic element 15 abuts against the first limiting slider 14, and the other end abuts against the housing 60. The first limiting slider 14 can slide in the left-right direction between the first slots 133 via the first elastic element 15. Specifically, the inner surfaces of the first card holder 131 and the second card holder 132 are respectively provided with a first sliding groove 1311 and a second sliding groove 1321 extending in the left-right direction and symmetrical to the reciprocating rod 20. The two sides of the first limiting slider 14 in the front-back direction are slidably connected to the first sliding groove 1311 and the second sliding groove 1321, respectively. In one implementation, the first limiting slider 14 is provided with first sliding protrusions 141 on both sides along the front-rear direction. The first sliding protrusions 141 on both sides respectively match the first sliding groove 1311 and the second sliding groove 1321 on their corresponding sides, thereby allowing the first limiting slider 14 to slide between the first slots 133 in the left-right direction, that is, allowing the first limiting slider 14 to slide relative to the first card holder 131 and the second card holder 132 in the left-right direction. It is understood that in other implementations, the first limiting slider 14 and the first card holder 131 and the second card holder 132 may also adopt other structures such as keyway connection to achieve sliding connection, as long as the first limiting slider 14 can slide between the first slots 133 in the left-right direction.

[0025] To better achieve the connection between the first limiting slider 14 and the first elastic member 15, in this embodiment, see... Figure 3 and Figure 5 The first limiting slider 14 is provided with a first limiting protrusion 142 on the side that abuts against the first elastic member 15. One end of the first elastic member 15 is sleeved on the first limiting protrusion 142, and the other end abuts against the inner wall of the housing 60.

[0026] In this embodiment, see Figures 1 to 6 The reciprocating rod 20 includes an upper drive section 202 and a lower cylindrical rod section 201. The lower end of the cylindrical rod section 201 is used to clamp the saw blade 70, and the mounting base 10 and the first buffer mechanism 11 are both disposed on the radial outer periphery of the cylindrical rod section 201. The drive section 202 is provided with an oblong hole 203 for connecting with the reciprocating rod drive structure 30 to drive the reciprocating rod 20 to perform up-and-down reciprocating motion. The relevant structures are all common technologies in the field and will not be described in detail here. To further limit the movement of the reciprocating rod 20, the drive section 202 is also fitted with a limiting member 204 fixedly disposed relative to the housing 60. The limiting member 204 is provided with a through hole 205 to allow the drive section 202 of the reciprocating rod 20 to pass through and move up and down relative to the limiting member 204. The limiting member 204 is provided with a limiting protrusion 206. Correspondingly, taking the rear housing 61 as an example, the corresponding position of the rear housing 61 is provided with a matching limiting groove 603. The limiting protrusion 206 can be inserted into the corresponding limiting groove 603, thereby realizing the fixed connection between the limiting member 204 and the rear housing 61, thus restricting the drive section 202 to only reciprocate up and down under the action of the reciprocating rod drive structure 30. When the jigsaw 1 performs cutting operations, the reciprocating rod 20 will be affected by factors such as inertial force and will generate a large degree of vibration. At the same time, due to the limitation of the drive section 202 and the limiting member 204, the cylindrical rod section 201 will also swing to a certain extent in the left and right directions.

[0027] Preferably, to better limit and dampen the reciprocating rod 20, the first retaining seat 131 and the second retaining seat 132 are fixedly connected on the same side in the left-right direction, without the first slot 133, by a connecting block 134. That is, the reciprocating rod 20 is restricted to move within the area defined by the first retaining seat 131, the second retaining seat 132, the first limiting slider 14, and the connecting block 134. See also... Figures 1 to 3In this embodiment, the connecting block 134 and the first limiting slider 14 restrict the movement of the reciprocating rod 20 in the left and right directions, respectively. It can be understood that since the connecting block 134 is fixedly connected to the first card seat 131 and the second card seat 132, the connecting block 134 is a fixed part, and the first limiting slider 14 is a movable part under the elastic force of the first elastic member 15. When the reciprocating rod 20 swings to the right in the left-right direction due to factors such as inertia, it needs to push the first limiting slider 14 to overcome the elastic force of the first elastic element 15 and slide to the right in the left-right direction. The resistance brought by the first limiting slider 14 and the first elastic element 15 can effectively limit the rightward swing of the reciprocating rod 20 in the left-right direction, thereby absorbing some of the vibration generated by the reciprocating rod 20. Subsequently, the first limiting slider 14 will quickly reset under the action of the first elastic force 15 and push the reciprocating rod 20 to the left in the left-right direction. At the same time, the connecting block 134, as a fixing element, will block the reciprocating rod 20 to limit its leftward swing amplitude. In this process, the movable first limiting slider 14 can more flexibly limit the swing amplitude of the reciprocating rod 20 and absorb the vibration generated by the reciprocating rod 20. While providing better limiting for the reciprocating rod 20, it also reduces the vibration of the reciprocating rod 20, weakens its impact on the saw blade 70, makes the cutting process of the jigsaw 1 more stable and accurate, and improves the cutting quality of the jigsaw 1.

[0028] It is understandable that the positions of the connecting block 134 and the first limiting slider 14 can be interchanged, that is, the connecting block 134 can be set on the right side and the first limiting slider 14 can be set on the left side. No limitation is made here.

[0029] Further preferably, the connecting block 134 has a first limiting surface 1341 that is curved along the left-right direction and facing the reciprocating rod 20, so as to conform to the outer periphery of the cylindrical rod segment 201 of the reciprocating rod 20. That is to say, the mounting base 10, namely the first card holder 131, the second card holder 132, and the connecting block 134, are in a U-shaped structure. Similarly, the first limiting slider 14 also has a second limiting surface 143 that is curved along the left-right direction and facing the reciprocating rod 20, which is also used to conform to the outer periphery of the cylindrical rod segment 201 of the reciprocating rod 20, so as to better limit the cylindrical rod segment 201 of the reciprocating rod 20. In addition, the curved first limiting surface 1341 and the second limiting surface 143 also make the force on the reciprocating rod 20 more uniform and stable, which can achieve better vibration reduction effect and further improve the cutting quality of the jigsaw 1.

[0030] Furthermore, see Figure 4 The connecting block 134 can be integrally formed with the first card holder 131 and the second card holder 132.

[0031] For a more preferred option, see [link to previous article]. Figure 4The first slide groove 1311 and the second slide groove 1321 can be respectively set through the connecting block 134 in the left and right directions, and the first heat dissipation hole 1342 and the second heat dissipation hole 1343 are respectively formed on the connecting block 134.

[0032] To achieve a fixed connection between the mounting base 10 (i.e., the first retaining bracket 131 and the second retaining bracket 132) and the housing 60, in this embodiment, the first retaining bracket 131 and the second retaining bracket 132 are respectively provided on opposite sides along the front-rear direction, i.e., on sides away from the reciprocating rod 20, with a first mounting protrusion 1312 and a second mounting protrusion 1322. Correspondingly, the housing 60 is provided with a first mounting groove (not shown in the figure) and a second mounting groove 601 at corresponding positions, so as to engage with the first mounting protrusion 1312 and the second mounting protrusion 1322 respectively, thereby achieving a fixed connection between the mounting base 10 (i.e., the first retaining bracket 131 and the second retaining bracket 132) and the housing 60. See also Figure 6 Taking the rear housing 61 as an example, a second mounting groove 601 is provided at a corresponding position on the rear housing 61, which is used to engage with the second mounting protrusion 1322 of the second card seat 132 to fix the second card seat 132.

[0033] In another embodiment of this application, see Figure 7 , Figure 8 A first buffer mechanism 11 is provided on one side of the mounting base 10 along the left-right direction, and a second buffer mechanism 12 is provided on the other side. The first buffer mechanism 11 and the second buffer mechanism 12 restrict the reciprocating rod 20 within the mounting base 10. When the saw blade 70 is cutting the workpiece, the reciprocating rod 20 can move in the left-right direction, and the first buffer mechanism 11 and the second buffer mechanism 12 jointly absorb the vibration generated by the reciprocating rod 20. Similar to the previous embodiment, the mounting base 10 includes a first retainer 131 and a second retainer 132 arranged symmetrically with respect to the reciprocating rod 20 along the front-back direction. The first retainer 131 and the second retainer 132 are respectively provided with a first slot 133 and a second slot 135 on both sides along the left-right direction, and the mounting base 10 is fixedly set relative to the housing 60. The first buffer mechanism 11 is the same as in the previous embodiment, and the first buffer mechanism 11 can slide between the first slots 133 in the left-right direction, that is, the first limiting slider 14 can slide between the first slots 133 in the left-right direction through the first elastic element 15.

[0034] In this embodiment, the second buffer mechanism 12 and the first buffer mechanism 11 are symmetrically arranged in the left-right direction relative to the reciprocating rod 20, wherein the second buffer mechanism 12 can slide in the left-right direction between the second slots 135. Specifically, see Figure 7 , Figure 8The second buffer mechanism 12 includes a second limiting slider 16 and a second elastic member 17. One end of the second elastic member 17 abuts against the second limiting slider 16, and the other end abuts against the housing 60. A second limiting protrusion 161 (not shown in the figure) is provided on the side of the second limiting slider 16 that abuts against the second elastic member 17. One end of the second elastic member 17 is fitted onto the second limiting protrusion 161, and the other end abuts against the inner wall of the housing 60. The second limiting slider 16 can slide in the left-right direction between the second slots 135 via the second elastic member 17. In one embodiment, the second limiting slider 16 has second sliding protrusions 162 on both sides in the front-back direction. The second sliding protrusions 162 on both sides can respectively match the first sliding groove 1311 and the second sliding groove 1321 on their corresponding sides of the first retainer 131 and the second retainer 132, thereby allowing the second limiting slider 16 to slide in the left-right direction between the second slots 135.

[0035] In a further preferred embodiment, the second limiting slider 16 has a third limiting surface 163 that is curved along the left-right direction and faces the reciprocating rod 20. The third limiting surface 163 can fit the outer periphery of the cylindrical rod segment 201 of the reciprocating rod 20, so that it can clamp the cylindrical rod segment 201 together with the second limiting surface 143 of the first limiting slider 14, so as to better limit the reciprocating rod 20. At the same time, it also makes the force on the reciprocating rod 20 more uniform and stable, achieving a better vibration reduction effect.

[0036] In this embodiment, the reciprocating rod 20 is confined within the area defined by the first retaining seat 131, the second retaining seat 132, the first buffer mechanism 11 (i.e., the first limiting slider 14), and the second buffer mechanism 12 (i.e., the second limiting slider 16). The second limiting slider 16 and the first limiting slider 14 restrict the movement of the reciprocating rod 20 in the left-right direction from the left and right directions, respectively. It is understood that both the first limiting slider 14 and the second limiting slider 16 are movable parts under the elastic force of the first elastic member 15 and the second elastic member 17. During the cutting operation of the jigsaw 1, when the reciprocating rod 20 vibrates and swings to the right, it pushes the first limiting slider 14 to slide to the right against the elastic force of the first elastic element 15. Subsequently, the first limiting slider 14 quickly resets and re-clamps the reciprocating rod 20 under the elastic force of the first elastic element 15. When the reciprocating rod 20 swings to the left, it pushes the second limiting slider 16 to slide to the left against the elastic force of the second elastic element 17. Subsequently, the second limiting slider 16 quickly resets and re-clamps the reciprocating rod 20 under the elastic force of the second elastic element 17. In this process, the movable first limiting slider 14 and second limiting slider 16 can more flexibly limit the swing amplitude of the reciprocating rod 20 from both left and right directions, and jointly absorb the vibration generated by the reciprocating rod 20. While providing better limiting for the reciprocating rod 20, this reduces its vibration, weakens its impact on the saw blade 70, makes the cutting process of the jigsaw 1 more stable and precise, and improves the cutting quality of the jigsaw 1.

[0037] It is easy to see that in the aforementioned embodiments, the mounting base 10, namely the first latch 131 and the second latch 132, are fixedly disposed relative to the housing 60. The movable first buffer mechanism 11 or the first buffer mechanism 11 and the second buffer mechanism 12 limit the swing amplitude of the reciprocating rod 20 in the left and right directions, absorb the vibration generated by the reciprocating rod 20, limit the reciprocating rod 20 and reduce its vibration, thereby improving the cutting quality of the jigsaw 1. In other embodiments, the mounting base 10 and the first buffer mechanism 11 can also be fixedly disposed relative to the reciprocating rod 20 and slidably disposed relative to the housing 60 as a whole; or the mounting base 10 and the first buffer mechanism 11 and the second buffer mechanism 12 can all be fixedly disposed relative to the reciprocating rod 20 and slidably disposed relative to the housing 60 as a whole.

[0038] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A jigsaw, comprising a reciprocating rod, a reciprocating rod drive structure, a motor, and a housing, wherein one end of the reciprocating rod holds a saw blade, and the reciprocating rod drive structure converts the rotational motion of the motor into the up-and-down reciprocating motion of the reciprocating rod, characterized in that, The jigsaw also includes a mounting base arranged along the radial outer periphery of the reciprocating rod, and a first buffer mechanism is provided on one side of the mounting base in the left-right direction; The first buffer mechanism confines the reciprocating rod within the mounting base, and when the saw blade is cutting the workpiece, the reciprocating rod can move in the left-right direction, and the first buffer mechanism can absorb the vibration generated by the reciprocating rod; The mounting base includes a first slot and a second slot arranged symmetrically with respect to the reciprocating rod along the front-back direction. The first slot and the second slot are provided with a first slot on the same side along the left-right direction, and the mounting base is fixedly disposed relative to the housing.

2. The jigsaw as described in claim 1, characterized in that, The first card holder and the second card holder are fixedly connected by a connecting block along the same side of the left and right direction where the first slot is not provided, and the mounting base is U-shaped in general.

3. The jigsaw as described in claim 1, characterized in that, The first buffer mechanism includes a first limiting slider and a first elastic element. One end of the first elastic element abuts against the first limiting slider, and the other end abuts against the housing. The first limiting slider slides between the first slots in the left-right direction via the first elastic element.

4. The jigsaw as described in claim 3, characterized in that, The inner surfaces of the first card holder and the second card holder opposite to each other are respectively provided with a first sliding groove and a second sliding groove extending along the left and right direction and symmetrical with respect to the reciprocating rod; The first limiting slider is slidably connected to the first slide groove and the second slide groove on both sides along the front-back direction, respectively.

5. The jigsaw as described in claim 4, characterized in that, The first limiting slider is provided with first sliding protrusions on both sides along the front-back direction, and the first sliding protrusions are matched with the first sliding groove and the second sliding groove.

6. The jigsaw as described in claim 5, characterized in that, The first limiting slider is provided with a first limiting protrusion on the side that abuts against the first elastic member. One end of the first elastic member is sleeved on the first limiting protrusion, and the other end abuts against the inner wall of the housing.

7. A jigsaw, comprising a reciprocating rod, a reciprocating rod drive structure, a motor, and a housing, wherein one end of the reciprocating rod holds a saw blade, and the reciprocating rod drive structure converts the rotational motion of the motor into the up-and-down reciprocating motion of the reciprocating rod, characterized in that, The jigsaw also includes a mounting base arranged along the radial outer periphery of the reciprocating rod. A first buffer mechanism is provided on one side of the mounting base in the left-right direction, and a second buffer mechanism is provided on the other side. The first buffer mechanism and the second buffer mechanism restrict the reciprocating rod within the mounting base, and when the saw blade is cutting the workpiece, the reciprocating rod can move in the left and right direction. The first buffer mechanism and the second buffer mechanism can absorb the vibration generated by the reciprocating rod. The mounting base includes a first slot and a second slot arranged symmetrically with respect to the reciprocating rod along the front-back direction. The first slot and the second slot are respectively provided with a first slot and a second slot on both sides along the left-right direction, and the mounting base is fixedly arranged relative to the housing.

8. The jigsaw as described in claim 7, characterized in that, The first buffer mechanism and the second buffer mechanism are arranged symmetrically with respect to the reciprocating rod in the left-right direction. The first buffer mechanism can slide between the first slots in the left-right direction, and the second buffer mechanism can slide between the second slots in the left-right direction.

9. The jigsaw as described in claim 8, characterized in that, The first buffer mechanism includes a first limiting slider and a first elastic element. One end of the first elastic element abuts against the first limiting slider, and the other end abuts against the housing. The first limiting slider slides between the first slots along the left-right direction via the first elastic element. The second buffer mechanism includes a second limiting slider and a second elastic element. One end of the second elastic element abuts against the second limiting slider, and the other end abuts against the housing. The second limiting slider slides between the second slots in the left-right direction via the second elastic element.

10. The jigsaw as described in claim 9, characterized in that, The inner surfaces of the first card holder and the second card holder opposite to each other are respectively provided with a first sliding groove and a second sliding groove extending along the left and right direction and symmetrical with respect to the reciprocating rod; The first limiting slider and the second limiting slider are slidably connected to the first slide groove and the second slide groove respectively on both sides along the front and rear directions.

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