Fastener driver

Abstract

The utility model discloses a fastener driver, comprising: a striking assembly comprising a striking member configured to strike a fastener; the power mechanism is arranged to generate power for driving the striking piece, and the power mechanism comprises a gas spring mechanism or a mechanical spring mechanism; the motor is arranged to drive the power mechanism to move and generate power; the striking piece comprises a striking end for striking the fastener, and the striking end is provided with a groove. The fastener driver is longer in service life.

Description

Technical Field

[0001] The present application relates to an electric tool, and in particular to a fastener driver. Background Art

[0002] A nail gun in the related art is a fastener driver used to quickly drive nails into a work surface. A compressed air-driven nail gun has a compressed air-driven cylinder, and the thrust generated by the cylinder is used as a driving force. A mechanical spring nail gun has an impact spring (compression spring), and the force of the impact spring is used as a driving force.

[0003] In the related art, whether it is a mechanical spring nail gun or a gas spring nail gun, the force of the energy-storing spring drives the striking member to strike the fastener so that it is driven into the workpiece. The normal operation of the striking member ensures the operating state of the entire machine.

[0004] In the process of striking the fastener, it is necessary to reduce the relative displacement between the striking piece and the fastener in the non-striking direction to reduce the loss of striking force and avoid affecting the nailing efficiency.

[0005] This section provides background information related to the present application which is not necessarily prior art. Utility Model Content

[0006] One object of the present application is to solve or at least alleviate part or all of the above problems. To this end, one object of the present application is to provide a fastener driver with high nailing efficiency and long service life of the striking piece.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions:

[0008] A fastener driver, characterized in that it includes: a striking assembly, including a striking piece configured to strike the fastener; a power mechanism, configured to generate power to drive the striking piece, the power mechanism including a gas spring mechanism or a mechanical spring mechanism; a motor, configured to drive the power mechanism to move and generate power; the striking piece includes a striking end for striking the fastener, and the striking end is provided with a groove.

[0009] In some embodiments, the recess receives at least a portion of the fastener.

[0010] In some embodiments, the groove is configured in an arc shape.

[0011] In some embodiments, at least one section of the contour line of the groove is an arc line, a fitting line, or a slanted line.

[0012] In some embodiments, the contour line of the groove is a quadratic or polynomial fitting curve, or a single or multiple arcs, or is formed by connecting multiple straight lines and arcs.

[0013] In some embodiments, the grooves are arranged in a triangular shape.

[0014] In some embodiments, along the extension direction of the striking member, the depth of the groove is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

[0015] In some embodiments, the groove depth dimension is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

[0016] In some embodiments, the striking end portion of the striking member is harder than the remaining portion of the striking member.

[0017] In some embodiments, the rest of the striking member except the striking end portion is defined as the main body portion of the striking member, and the main body portion includes a connecting end, and the connecting end is connected to the power mechanism.

[0018] The advantages of the present application are that the contact area between the striking piece and the fastener is increased by using the groove to contact the fastener, thereby extending the life of the striking piece. The contact between the groove and the fastener reduces the displacement of the striking piece when contacting the fastener, prevents the fastener from deviating during nailing, improves the nailing quality, reduces the loss of striking force, and improves the nailing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural diagram of a fastener driver in one embodiment of the present application;

[0020] Figure 2 yes Figure 1 A partial schematic diagram of the internal structure of the fastener driver;

[0021] Figure 3 yes Figure 1 A cross-sectional view of a fastener driver portion structure;

[0022] Figure 4 yes Figure 1 A schematic diagram of a placement structure in a first stable placement state when the fastener driver is placed horizontally;

[0023] Figure 5 yes Figure 1 A schematic diagram of a placement structure in a second stable placement state when the fastener driver is placed horizontally;

[0024] Figure 6 yes Figure 1 A schematic diagram of the mechanism of the nail seat assembly of the fastener driver;

[0025] Figure 7 yes Figure 1 An exploded view of a portion of the structure of a fastener driver;

[0026] Figure 8 yes Figure 6 A schematic diagram of the structure of the middle fastener frame;

[0027] Fig. 9 yes Figure 1 A schematic diagram of the structure of the fastener driver striking member;

[0028] Fig. 10A , Fig. 10B It is a schematic diagram of two groove structure shapes of the striking piece;

[0029] Fig.11 is a schematic diagram of an optical assembly of a fastener driver;

[0030] Fig.12 is a schematic diagram of a light emitting portion of an optical assembly of a fastener driver;

[0031] Fig.13 is a light schematic diagram of the optical components of a fastener driver. DETAILED DESCRIPTION

[0032] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0033] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0034] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0035] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediary, and indirect connection refers to two parts or components being connected to at least one intermediary respectively, and the two parts or components being connected via the intermediary. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0036] In this application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, etc. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0037] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0038] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0039] In this application, the terms "controller", "processor", "central processing unit", "CPU", and "MCU" are interchangeable. When a unit "controller", "processor", "central processing unit", "CPU", or "MCU" is used to perform a specific function, unless otherwise specified, these functions can be performed by a single unit or multiple units.

[0040] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0041] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0042] like Figure 1 A fastener driver 100 of an embodiment of the present application is shown. The fastener driver 100 is used to drive a fastener into a work surface 200. For example, the fastener is a nail, and the nail can be a straight nail or a U-shaped nail. The fastener driver 100 drives the fastener to quickly drive into the work surface 200, thereby fixing the work surface 200 to the platform on the back of the work surface 200. In this embodiment, the fastener driver 100 is, for example, a nail gun. Optionally, the fastener driver 100 includes a mechanical spring-type nail gun that utilizes the force of a compressed coil spring as an impact force (e.g., a driving force). Optionally, the fastener driver 100 is a cylinder-type nail gun that compresses the gas in the cylinder, and the gas pushes out the firing assembly to thereby perform a nailing impact force (e.g., a driving force).

[0043] In this embodiment, the fastener driver 100 is a cylinder nail gun. Exemplarily, the fastener driver 100 does not require an external air pressure source, but includes a pre-charged pressurized gas in the cylinder assembly. Exemplarily, the cylinder assembly of the fastener driver 100 is connected to the atmosphere, and the cylinder flows into gas in a preset state.

[0044] like Figure 1As shown, the fastener driver 100 uses a rechargeable battery pack as a power source. In this embodiment, the battery pack is a battery pack 300, and the battery pack 300 cooperates with a corresponding power circuit to power the fastener driver 100. Those skilled in the art should understand that in other embodiments, the fastener driver 100 can also be powered by other power supply devices. For example, the power supply can be an AC line connected to the mains, or the power supply can also be other connecting cables that can be connected to the power supply device. The mains or other power supply devices cooperate with corresponding rectification, filtering and voltage regulation circuits to realize power supply to the corresponding components of the fastener driver 100. The battery pack 300 will be used to replace the power supply below, but it cannot be used as a limitation to the present application.

[0045] like Figures 1 to 3 As shown, the fastener driver 100 includes: a housing 11, a striking assembly 12, a power mechanism 20 and a motor 14. The housing 11 is used to support the striking assembly 12, the power mechanism 20 and the motor 14. The striking assembly 12 includes a striking member 121 for driving the fastener, and optionally, the striking member 121 is used to drive the fastener to be shot into the working surface 200 along the striking line 101. The striking member 121 is a sheet-like element extending along a plane parallel to the striking line 101, and the axis defined by the striking member 121 coincides with the striking line 101. The power mechanism 20 is used to drive the striking member 121 to move along the striking line 101 so as to impact the fastener to be shot into the working surface 200 along the striking line 101.

[0046] In order to facilitate the description of the technical solution of this application, the following definitions are made: Figure 1 The front-to-back direction and the up-to-down direction are shown, wherein the front-to-back direction is parallel to the striking line 101, the direction from the striking member 121 to the fastener is the front, and the up-to-down direction is perpendicular to the front-to-back direction.

[0047] In the present embodiment, the motor 14 is disposed in the housing 11, and the motor 14 is used to provide power to the power mechanism 20. In the present embodiment, the motor 14 is specifically an electric motor 14, and the power mechanism 20 is provided with power by the electric motor 14. It is understandable that in other embodiments, the motor 14 may also be other forms of power sources, such as an engine. In the present application, for the convenience of description, the motor 14 is used for description. The motor 14 is an inner rotor motor 14, which includes: a stator assembly 142 and a rotor assembly 143, the rotor assembly 143 includes a motor shaft 141 for outputting power, and the stator assembly 142 surrounds the motor shaft 141. The motor shaft 141 can rotate around the motor axis 104 relative to the housing 11 to output power. It is understandable that in other embodiments, the motor 14 can also be an outer rotor motor. A battery pack 300 is detachably mounted to the housing 11. When the battery pack 300 is mounted to the housing 11, it can at least supply power to the motor 14 to enable the motor 14 to operate.

[0048] The power mechanism 20 includes: a driving assembly 21, an energy storage assembly 22 and a firing assembly 23. The driving assembly 21 is used to drive the energy storage assembly 22 to store energy. The firing assembly 23 forms or connects the striking piece 121, and the firing assembly 23 is configured to be able to move relative to the housing 11 along the third straight line 103 and drive the striking piece 121 to move along the striking straight line 101 when moving along the third straight line 103. The energy storage assembly 22 stores energy for driving the firing assembly 23 to move, and drives the firing assembly 23 to move along the third straight line 103 when releasing energy, thereby driving the striking piece 121 to move along the striking straight line 101.

[0049] The fastener driver 100 further includes a magazine 191 disposed at the front end of the housing 11 . The magazine 191 is used to accommodate fasteners. The magazine 191 can push the fasteners one by one into the striking assembly 12 .

[0050] The housing 11 includes a main body 111, a motor housing 113 and a handle 112. The main body 111 is formed with a first housing cavity for housing at least a portion of the energy storage assembly 22. The motor housing 113 has a built-in motor 14. The handle 112 is used for a user to hold to operate the fastener driver 100. The motor housing 113 and the handle 112 extend downward from the lower part of the main body 111. The motor housing 113 is on the front side, and the handle 112 is on the rear side, extending substantially parallel to each other.

[0051] The housing 11 also includes: a coupling portion 115 for coupling the battery pack 300, and the battery pack 300 can be detachably mounted to the coupling portion 115. The coupling portion 115 is arranged between the motor housing portion 113 and the end portion of the handle portion 112. Optionally, the coupling portion 115 is arranged at an end of the handle portion 112 away from the main body portion 111. The battery pack 300 can be mounted to the coupling portion 115 in a direction intersecting with the direction of the third straight line 103. In some embodiments, the battery pack 300 can be mounted to the coupling portion 115 in a direction parallel to the third straight line 103.

[0052] The fastener driver 100 further includes a trigger 192, which is mounted to the handle portion 112. The user can operate the trigger 192 to move the trigger 192 when holding the handle portion 112. The trigger 192 is used for the user to operate to start the fastener driver 100, and the trigger 192 also includes an operating surface for the user to operate. When the user's hand holds the handle portion 112, the user can contact the operating surface with the index finger to pull the trigger 192. The operating surface is the front surface of the trigger 192. In this embodiment, the operating surface is an arc-shaped surface that fits the user's finger.

[0053] A through hole 114 is formed between the motor housing portion 113 and the handle portion 112 for the user's hand to pass through. In the present embodiment, the main body 111 connects the handle portion 112 and the motor housing portion 113 at the upper side of the handle portion 112 and the motor housing portion 113, and the coupling portion 115 connects the handle portion 112 and the motor housing portion 113 at the lower side of the handle portion 112 and the motor housing portion 113. In this way, the main body 111, the motor housing portion 113, the coupling portion 115 and the handle portion 112 are sequentially connected to surround and form the above-mentioned through hole 114. It can be understood that in other embodiments, the coupling portion 115 may not connect the handle portion 112 and the motor housing portion 113, so that the through hole 114 is the area between the handle portion 112 and the motor housing portion 113. The through hole 114 penetrates the housing 11 in the left-right direction perpendicular to the third straight line 103. When the user holds the handle 112, the user's fingers can be at least partially located in the through hole 114, or the fingers can pass through the through hole 114, so that the user's palm and fingers can surround the handle 112 to hold the handle 112. The trigger 192 is also disposed in the through hole 114 area.

[0054] The fastener driver 100 further includes a speed reduction mechanism 15 disposed between the motor 14 and the power mechanism 20, the speed reduction mechanism 15 connecting the motor 14 and the power mechanism 20, thereby transmitting the power output by the motor 14 to the power mechanism 20. The speed reduction mechanism 15 also reduces the speed of the output of the motor 14 for output. The speed reduction mechanism 15 is at least partially disposed in the motor housing portion 113.

[0055] In this embodiment, the speed reduction mechanism 15 includes a first speed reduction assembly 151, and the first speed reduction assembly 151 uses a planetary gear for speed reduction. Because the speed reduction working principle of the planetary gear set and the speed reduction generated by this transmission mechanism have been fully disclosed to professionals in the field, a detailed description is omitted here for the purpose of brevity of the specification.

[0056] In this embodiment, the fastener driver 100 further includes a shaft lock assembly, which (not shown) transmits power to the output shaft 1511. The shaft lock assembly allows the power to be transmitted from the motor 14 to the output shaft 1511, while preventing the power from being transmitted from the output shaft 1511 to the motor 14 in the reverse direction. The structure of the shaft lock assembly is a relatively common technology and will not be described in detail here.

[0057] The energy storage assembly 22 includes a gas spring mechanism or a mechanical spring mechanism, wherein the mechanical spring mechanism utilizes the drive assembly to compress the spiral elasticity, thereby causing the spring to store energy when compressed and release energy when stretched. The spring drives the striking member to move when releasing energy.

[0058] like Figures 2 to 3As shown, in this embodiment, the energy storage component 22 is, for example, a gas spring mechanism. Wherein, the energy storage component 22 includes: a first cylinder 221 and a second cylinder 222. A portion or all of the second cylinder 222 is disposed in the first cylinder 221. The first cylinder 221 includes a first cylinder cavity 2210, and the central axis of the first cylinder cavity 2210 is set to the second straight line 102. A portion or all of the second cylinder 222 is disposed in the first cylinder cavity 2210. The second cylinder 222 includes a second cylinder cavity 2220, and the central axis of the second cylinder cavity 2220 coincides with the third straight line 103. In this embodiment, the second straight line 102 is parallel to the third straight line 103 but does not coincide. In some embodiments, the second straight line 102 coincides with the third straight line 103. In some embodiments, the second straight line 102 and the third straight line 103 are arranged at a certain angle.

[0059] In some embodiments, the energy storage assembly 22 further includes a connecting portion 223 , which is used to connect the first cylinder cavity 2210 and the second cylinder cavity 2220 , so that the gas in the first cylinder cavity 2210 can enter the second cylinder cavity 2220 through the connecting portion 223 .

[0060] The firing assembly 23 is at least partially disposed in the energy storage assembly 22. The firing assembly 23 includes a first piston 231 and a second piston 232. A portion or all of the first piston 231 is disposed in the first cylinder cavity 2210. The second piston 232 is disposed in the second cylinder cavity 2220. The driving assembly 21 is connected to the first piston 231, and can push the first piston 231 to reciprocate in the first cylinder cavity 2210 along the direction of the second straight line 102 under the rotation of the motor 14. The second piston 232 can reciprocate in the second cylinder cavity 2220 along the direction of the third straight line 103.

[0061] The striking member 121 and the second piston 232 are fixedly connected, and the second piston 232 drives the striking member 121 to reciprocate between the upper dead center or parking position and the lower dead center or striking position in the second cylinder chamber 2220. The user loads the fastener into the magazine 191, and the second piston 232 pushes the striking member 121 to move and drive the fastener.

[0062] like Figure 2 , Figure 3 and Figures 6 to 8As shown, the striking assembly 12 also includes a nail holder assembly 13. The nail holder assembly 13 receives fasteners stored in the magazine 191, such as straight nails. The nail holder assembly 13 includes a fastener rack 131 and a fixing member 132. The fastener rack 131 defines a fastener driving track 1311, and the fastener enters the driving track 1311 to be struck by the striking assembly 12, and the driving track 1311 guides the fastener when the fastener is driven into the working surface 200 by the striking member 121. The fixing member 132 is arranged on the outside of the fastener rack 131, and the fixing member 132 is used to limit the fastener from being separated from the driving track 1311. In this embodiment, the fixing member 132 is arranged on the side of the fastener rack 131 where the driving track 1311 is arranged. The fixing member 132 is used to close a part of the opening perpendicular to the extending direction of the driving track 1311. In this embodiment, the fixing member 132 is used to close the upward opening of the driving track 1311. When the fastener moves in the driving track 1311 along the striking line 101, the fixing member 132 prevents the fastener from moving upward and leaving the driving track 1311. In this embodiment, the fixing member 132 is also used to limit the movement of the striking member 121 not along the striking line 101.

[0063] The fastener rack 131 defines at least one access opening 1312, which allows fasteners to pass through to be struck by the striking assembly 12. Optionally, the fixing member 132 defines at least one access opening 1312, which allows fasteners to enter the fastener drive track 1311 from the magazine 191. Optionally, the fixing member 132 defines at least one access opening 1312, and the fastener rack 131 defines a path of action for the fasteners from the magazine 191 to the drive track 1311.

[0064] The end of the driving track 1311 of the fastener rack 131 is a nailing outlet 1313 for driving the fastener out of the fastener driver 100. In this embodiment, the nailing outlet 1313 itself defines a central axis. It can be understood that the nailing outlet 1313 is to ensure the nailing efficiency and the stability of the striking force, and the fastener is basically driven out from the center position of the nailing outlet 1313. Therefore, the central axis of the nailing outlet 1313 coincides with the center line of the fastener. In this embodiment, in order to ensure the striking force applied by the fastener of the striking member 121 and reduce the energy loss of the striking force, the central axis of the nailing outlet 1313 coincides with the axis of the striking member, that is, the central axis of the nailing outlet 1313 coincides with the striking straight line 101. Optionally, the fastener rack 131 defines a driving track 1311, and the driving track 1311 provides guidance for driving the fastener, so the central axis of the driving track 1311 coincides or substantially coincides with the striking straight line 101 (considering assembly errors and design tolerances).

[0065] like Figure 4 and Figure 5As shown, the fastener driver 100 is placed horizontally. In this embodiment, when the through-hole 114 of the housing 11 is perpendicular to the placement plane 201, the fastener driver 100 is placed horizontally. When the through-hole 114 of the housing 11 is parallel to the placement plane 201 and the extension direction of the handle 112 is substantially perpendicular to the placement plane 201, the fastener driver 100 is placed vertically (for example, Figure 1 ).

[0066] like Figure 4 As shown, when the fastener driver 100 is placed horizontally on the placement plane 201, it includes a first stable placement state, wherein the stable placement state means that when the fastener driver 100 is placed on a placement plane 201, without the assistance of external force, or without any other external environment support except the placement plane 201, the fastener driver 100 can be maintained in a state without shaking, swinging or changing shape and position.

[0067] In the first stable placement state, the angle α between the axis of the striking member and the placement plane 201 is less than or equal to 50°, wherein the axis defined by the striking member 121 itself coincides with the striking line 101, that is, the axis of the striking member is the striking line 101. It should be explained that the placement plane 201 refers to a physical plane or an extended plane of a physical plane. In some embodiments, the placement plane 201 is a flat ground, and the placement plane 201 is a physical plane within the projection range of the fastener driver 100. In some embodiments, the plane on which the fastener driver 100 is placed is a plane with a distance difference within the projection range of the fastener driver 100, and the distance difference is, for example, an angle difference or a height difference, and the placement plane 201 is a plane portion that is actually in contact with the fastener driver 100 or an extended plane of this plane portion.

[0068] In some embodiments, in the first stable placement state, the angle α between the axis of the striking member (striking straight line 101) and the placement plane 201 is less than or equal to 45°. In some embodiments, in the first stable placement state, the angle α between the axis of the striking member (striking straight line 101) and the placement plane 201 is less than or equal to 40°. In some embodiments, in the first stable placement state, the angle α between the axis of the striking member (striking straight line 101) and the placement plane 201 is less than or equal to 35°. In some embodiments, in the first stable placement state, the angle α between the axis of the striking member (striking straight line 101) and the placement plane 201 is less than or equal to 30°.

[0069] In this embodiment, in the first stable placement state, the angle α between the axis of the striking member and the placement plane 201 is less than or equal to 50°. This placement state can represent a placement state in which the entire fastener driver 100 has at least one front end as a fulcrum. Figure 4 In the horizontal placement mode, when the fastener driver 100 is horizontal, the through-hole 114 passes through in the up-down direction, and the direction perpendicular to the up-down direction is defined as the front-back direction.

[0070] From the perspective of the front view, the front end of the fastener driver 100 is closer to the placement plane 201 than the rear end, that is, the nail seat assembly 13 of the fastener driver 100 is closer to the placement plane 201 than the energy storage assembly 22. In this embodiment, the up and down direction of the fastener driver 100 when lying horizontally is defined as the first direction, and the first direction dimension of the shell of the main body 111 is greater than or equal to the dimensions of the handle 112, the motor housing 113 and the joint 115. It can be understood that the shell is along the direction of Figure 4 In the projection of the front view, the outer contour line comes from the part of the main body 111. By adjusting the size of the nail seat assembly 13 and the center of gravity arrangement position of the whole machine, in the first stable placement state, the angle α between the axis of the striking piece and the placement plane 201 is less than or equal to 50°, so that the fastener driver 100 is suitable for a narrow size space. For the corner position, the placement plane 201 can be understood as a side surface connected to the working surface at a right angle or angle. Since the angle α between the axis of the striking piece and the placement plane 201 is less than or equal to 50°, the axis of the striking piece is closer to the placement plane 201, so that the fastener can be tightened at a position close to the angle, and the edge effect is better.

[0071] In this embodiment, the center of gravity of the fastener driver 100 as a whole is located within the circle G. The center of gravity is located in the area between the motor 14 and the power mechanism 20, and illustratively, the center of gravity is located in the area of ​​the motor housing 113. illustratively, the center of gravity is located in the motor housing 113 and between the motor 14 and the drive assembly 21. illustratively, the center of gravity is located in the area of ​​the reduction mechanism 15. illustratively, the center of gravity is located in the area near the output shaft 1511 of the reduction mechanism 15.

[0072] In some embodiments, continue as Figure 4In the horizontal placement mode, when observed from the perspective of the front view, the axis of the striking member (striking straight line 101) is defined as the central axis, and the straight lines with an angle of ±50° with the central axis are defined as two side lines. When performing orthographic projection, the projection of the fastener driver 100 is defined in the area W between the two side lines. Among them, the intersection of the central axis and the two side lines is the intersection of the central axis and the placement plane. In some embodiments, the central axis of the axis of the striking member (striking straight line 101) and the straight lines with an angle of ±40° with the central axis are defined as two side lines. When performing orthographic projection, the projection of the fastener driver 100 is defined in the area W between the two side lines. In some embodiments, the central axis of the axis of the striking member and the straight lines with an angle of ±30° with the central axis are defined as two side lines. When performing orthographic projection, the projection of the fastener driver 100 is defined in the area W between the two side lines.

[0073] In this embodiment, in the first stable placement state, the fastener frame 131 is used to support the fastener driver 100. That is, in the first stable placement state, the fastener frame 131 provides a support point to stably place the fastener driver 100 on the placement plane 201.

[0074] like Figure 5 As shown, the fastener driver 100 also includes a second stable placement state when placed horizontally, in which the axis of the striking member is substantially parallel to the placement plane 201. In this embodiment, in the second stable placement state, the striking line 101 is substantially parallel to the placement plane 201. In the second stable placement state, the main body 111 supports the fastener driver 100.

[0075] like Figure 5 As shown, in this embodiment, the up-down direction when the fastener driver 100 lies horizontally is defined as the first direction. In the first direction, the size W1 of the fastener frame 131 is less than or equal to 30 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 29 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 28 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 27 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 26 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 25 mm. Exemplarily, in the first direction, the size W1 of the fastener frame 131 is less than or equal to 24 mm. In some embodiments, the size W1 of the fastener frame 131 in the first direction is greater than or equal to 15 mm and less than or equal to 25 mm. In some embodiments, the size W1 of the fastener frame 131 in the first direction is greater than or equal to 15 mm and less than or equal to 24 mm.

[0076] like Figure 5 As shown, in the first direction, the ratio of the size W1 of the fastener rack 131 to the size W2 of the first cylinder is greater than or equal to 0.25 and less than or equal to 0.35. Exemplarily, in the first direction, the ratio of the size W1 of the fastener rack 131 to the size W2 of the first cylinder is greater than or equal to 0.28 and less than or equal to 0.32. Exemplarily, in the first direction, the ratio of the size W1 of the fastener rack 131 to the size W2 of the first cylinder is 0.31. Wherein, in the first direction, the size W2 of the first cylinder is greater than or equal to 78 mm and less than or equal to 88 mm. In this embodiment, the size W2 of the first cylinder is the size of the entire fastener driver 100 in the left-right direction.

[0077] like Figure 11 to Figure 12 As shown, the fastener driver 100 includes an optical component 16. In this embodiment, the optical component 16 includes at least two light-emitting parts 161 on the housing 11 that are symmetrical relative to a set plane. Exemplarily, the at least two light-emitting parts 161 are respectively arranged on two independent substrates 1612. For example, the light-emitting part 161 includes an LED lamp bead 1611 and a substrate 1612 for mounting the LED lamp bead 1611. The two light-emitting parts 161 include at least two LED lamp beads 1611 and two substrates 1612. Exemplarily, the two light-emitting parts 161 include at least two LED lamp beads 1611 and a substrate 1612, that is, a plurality of LED lamp beads 1611 are arranged on the same substrate 1612, and the lighting and shutting down of the LED lamp beads 1611 are controlled respectively. Exemplarily, the light-emitting part 161 includes a light-emitting diode (LED) lamp bead, and can also be a COB (Chip On Board, i.e., chip mounting on board) lamp bead.

[0078] In some embodiments, the light component 16 is disposed on the main body 111. The light component 16 is disposed on the main body 111 and is located on the left and right sides of the nail seat assembly 13. In this embodiment, the setting plane includes a first plane A where the striking line 101 is located and extends in the front-to-back direction. When the light component 16 is lit, the light emitted by the two light-emitting parts 161 is partially blocked by the nail seat assembly 13 to form a dark area, and the midpoint of the center line of the dark area is the nail outlet 1313, that is, the nailing position. By adjusting the position of the light component 16 and using the light component 16 to accurately indicate the nailing position, the user can accurately align the fastener with the position to be fastened.

[0079] In some embodiments, a lighting assembly 162 is provided on the housing 11 for lighting. When the lighting is poor, the lighting assembly 162 provides auxiliary lighting to illuminate the surrounding environment and facilitate user operation. In some embodiments, the lighting assembly 162 is provided on the main body 111, such as the upper side of the nail seat assembly 13, the lower side of the nail seat assembly 13, or the upper and lower sides of the nail seat assembly 13.

[0080] like Figures 9 to 10A As shown in FIG. 10B , the striking member 121 includes a connecting end 1212 and a striking end 1211 opposite to the connecting end 1212. The connecting end 1212 is used to connect to the second piston 232. In other alternative embodiments, the connecting end 1212 is connected to a piston moving in the cylinder. In some embodiments, the connecting end 1212 is connected to a coil spring. In some embodiments, the connecting end 1212 is used to receive the driving force generated by the power mechanism 20. The striking end 1211 strikes the fastener provided from the magazine 191 and drives the fastener into the working surface 200. In this embodiment, the striking end 1211 is provided with a groove 1213. The groove 1213 receives at least part of the fastener. When the striking member 121 strikes the fastener, the groove 1213 is used to contact the fastener, so as to increase the contact area between the striking member and the fastener and extend the life of the striking member. The contact between the groove 1213 and the fastener reduces the displacement of the striking member when contacting the fastener, prevents the fastener from deviating from the nail, improves the nailing quality, reduces the loss of striking force, and improves the nailing efficiency.

[0081] like Figures 10A-10B As shown, the striking end 1211 includes an impact surface S oriented perpendicular to the striking line 101. In the related art, the impact surface is a plane, which easily causes problems such as fastener deviation. In this embodiment, the impact surface S is a concave surface that is concave toward the connecting end 1212. For example, Fig. 10A As shown, when viewed from the top and bottom, the groove 1213 of the striking end 1211 is set to be arc-shaped, and the impact surface S is an arc surface. Exemplarily, the contour line of the groove 1213 includes a single segment or multiple segments of arc lines, or a straight line and an arc line connected to each other, or a quadratic or higher polynomial fitting curve. Fig. 10B As shown, when viewed from the up and down direction, the groove 1213 of the striking end 1211 is set to be triangular, and the impact surface S is two surfaces at a certain angle. Exemplarily, the contour line of the groove 1213 includes a single segment or multiple segments of connected oblique lines.

[0082] In this embodiment, the depression depth H1 of the groove 1213 along the striking line 101 is greater than or equal to 0.2 mm and less than or equal to 0.5 mm. Exemplarily, the depression depth H1 of the groove 1213 along the striking line 101 is 0.35 mm. The maximum opening size M1 of the groove 1213 is greater than or equal to 0.2 mm and less than or equal to 0.5 mm. Exemplarily, the maximum opening size M1 of the groove 1213 is 0.35 mm.

[0083] In the present embodiment, the striking piece comprises a striking end portion 121a and the rest of the striking piece, and the rest of the striking piece is defined as a main body portion 121b, wherein the connecting end 1212 is arranged on the main body portion 121b. The main body portion 121b and the striking end portion 121a are fixedly connected or integrally formed. The hardness of the striking end portion 121a is greater than the hardness of the main body portion 121b. Exemplary, the Rockwell hardness of the striking end portion 121a is greater than or equal to 55-60HRC. In some embodiments, the main body portion 121b and the striking end portion 121a are separately manufactured components, and are fixedly connected by welding or riveting. In some embodiments, the main body portion 121b and the striking end portion 121a are integrally formed components, and the striking end portion 121a increases hardness by special treatment, such as heat treatment, forging treatment, surface treatment, etc., so as to achieve different hardness of the main body portion 121b and the striking end portion 121a.

[0084] like Figure 3 As shown, the firing assembly 23 further includes an iron sheet 234 and a magnet 235. The iron sheet 234 is disposed on the side of the second piston 232 facing the communication portion 223, and the magnet 235 is disposed on the side of the communication portion 223 facing the second piston 232. The iron sheet 234 and the magnet 235 attract each other to fix the second piston 232. In other embodiments, the magnet 235 may be disposed on the side of the second piston 232 facing the communication portion 223, and the iron sheet 234 may be disposed on the side of the communication portion 223 facing the second piston 232.

[0085] This embodiment provides an implementation of a power mechanism 20. When the driving assembly 21 pushes the first piston 231 to move from front to back in the first cylinder cavity 2210 along the direction of the second straight line 102, the gas in the first cylinder cavity 2210 enters the second cylinder cavity 2220 through the connecting portion 223. As the first piston 231 gradually approaches the connecting portion 223, the air pressure on the second piston 232 gradually increases. When the air pressure on the second piston 232 reaches a predetermined threshold, the second piston 232 is separated from the attraction of the magnet 235 and moves from the top dead center or the stop position to the bottom dead center or the striking position under the action of the air pressure, thereby pushing the striking member 121 to move forward and strike the nail.

[0086] In this embodiment, if Figures 1 to 3As shown, a circuit board assembly 17 is also provided in the joint 115. The circuit board assembly 17 is electrically connected to the motor 14 to control the operation of the motor 14. The capacitor is provided on the upper side of the circuit board assembly 17. The lower side of the circuit board assembly 17 is provided with an electrical connection terminal, which is used to be electrically connected to the battery pack 300 so that the battery pack 300 supplies power to the motor 14.

[0087] The fastener driver 100 further includes a fan 145, which is fixedly connected to the motor shaft 141 and can rotate synchronously with the motor shaft 141. The fan 145 is mounted to the upper end of the motor shaft 141. When the fan 145 rotates, a heat dissipation airflow can be generated that flows into the housing 11 from the outside and then flows out of the housing 11. An airflow inlet 117 and an airflow outlet 116 are formed on the housing 11, and the airflow inlet 117 corresponds to the position of the fan 145, and the airflow outlet 116 corresponds to the position of the circuit board assembly 17. In the present embodiment, a high-power capacitor is provided on the circuit board assembly 17. The airflow outlet 116 also corresponds to the position of the capacitor. When the fan 145 rotates, the heat dissipation airflow enters the housing 11 from the airflow inlet 117, and then flows through the circuit board assembly 17 and flows out from the airflow outlet 116.

[0088] In some embodiments, a partition for separating the motor 14 and the circuit board assembly 17 may be further provided at the joint 115 , so that heat generated during the operation of the motor 14 will not enter the circuit board assembly 17 .

[0089] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A fastener driver, characterized in that: include: a striking assembly, including a striking member configured to strike the fastener; A power mechanism, configured to generate power to drive the striking member, the power mechanism comprising a gas spring mechanism or a mechanical spring mechanism; A motor, configured to drive the power mechanism to move and generate the power; The striking piece comprises a striking end for striking the fastener, and the striking end is provided with a groove.

2. The fastener driver according to claim 1, characterized in that The recess receives at least a portion of the fastener.

3. The fastener driver according to claim 1, wherein: The groove is arranged in an arc shape.

4. The fastener driver according to claim 3, characterized in that At least one section of the contour line of the groove is an arc line, a fitting line, or a slant line.

5. The fastener driver according to claim 3, wherein: The contour line of the groove is a quadratic or polynomial fitting curve, or a single or multiple arcs, or is formed by connecting multiple straight lines and arcs.

6. The fastener driver of claim 1, wherein: The groove is arranged in a triangle shape.

7. The fastener driver of claim 1, wherein: Along the extension direction of the striking member, the depth of the groove is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

8. The fastener driver of claim 1, wherein: The groove depth is greater than or equal to 0.2 mm and less than or equal to 0.5 mm.

9. The fastener driver of claim 1, wherein: The hardness of the striking end portion of the striking member is greater than that of the remaining portion of the striking member.

10. The fastener driver of claim 9, wherein: The remaining part of the striking member except the striking end part is defined as the main body part of the striking member, and the main body part includes a connecting end, and the connecting end is connected to the power mechanism.

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