Electric tool adaptive to European Union standard and provided with quick power-off protection device

Abstract

The utility model discloses an electric tool adaptive to European Union standards and provided with a rapid power-off protection device, and relates to the technical field of electric tools. The front end of the body is detachably provided with a tool head, the body is internally and detachably provided with a battery, the battery is connected with a driving motor through a control panel, the driving motor is connected with the tool head through a transmission mechanism, the outer side of the body is further provided with a switch connected with the control panel in a matched mode, and one end of the battery is fixedly connected with an electrode plate B; the other end of the electrode plate B abuts against the electrode plate A. The electrode plate A and the electrode plate B are both connected with the control panel. The battery and the electrode plate A are designed to be separable, so that a user can quickly separate the battery from the electrode plate A to realize power failure; the tool head is detachably mounted, so that a user can select a proper tool head for mounting conveniently, the equipment can adapt to various different working environments and requirements, multiple tools do not need to be carried, and the convenience is improved; and a limiting bead is arranged, so that the tool head is limited, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to an electric tool with a rapid power-off protection device adapted to EU standards. Background Art

[0002] Power tools play an important role in various projects and home repairs, but traditional power tools have some problems in terms of safety and ease of use. Specifically, if traditional power tools encounter sudden abnormal situations such as excessive current, overload or short circuit during work, they cannot quickly cut off the power supply, which may cause equipment damage or even cause safety accidents; in addition, some existing power tools only have a single function, such as drilling, grinding, etc., which requires users to carry multiple devices when they need to use multiple tools, increasing the inconvenience of use.

[0003] In the EU standards, there are strict regulations on the safety of handheld power tools, especially those related to electrical safety. Specifically, the EU standards require that power tools should be able to quickly cut off the power supply when encountering abnormal conditions such as sudden excessive current, overload or short circuit. This power-off function can prevent equipment damage and reduce the risk of safety accidents such as fire or electric shock. Therefore, in response to the above problems, it is necessary to develop an electric tool with a quick power-off protection device that is compatible with EU standards.

[0004] Based on this, the applicant proposed an electric tool with a rapid power-off protection device adapted to EU standards to solve the above technical problems. Utility Model Content

[0005] The utility model aims at the deficiencies in the prior art and provides an electric tool with a rapid power-off protection device adapted to EU standards.

[0006] The utility model solves the problem through the following technical solutions:

[0007] An electric tool with a quick power-off protection device adapted to EU standards comprises a body, a tool head is detachably provided at the front end of the body, a battery is detachably provided inside the body, the battery is connected to a drive motor via a control board, the drive motor is connected to the tool head via a transmission mechanism, a switch is further provided on the outside of the body and is cooperatively connected to the control board, one end of the battery is fixedly connected to an electrode sheet B, and the other end is in contact with an electrode sheet A, and both the electrode sheet A and the electrode sheet B are connected to the control board.

[0008] Preferably, a transmission rod is provided on the transmission mechanism near one end of the tool head, and the transmission mechanism includes a plurality of transmission units which are coaxially arranged and evenly arranged along the axial direction.

[0009] Preferably, the transmission unit comprises a planetary disk, and a plurality of planetary gears are evenly and fixedly arranged along the circumference of one side of the planetary disk, and the planetary gears are meshed with transmission gears fixedly arranged on the adjacent planetary disk.

[0010] Preferably, the output shaft of the driving motor is coaxial with the transmission unit, and a driving gear is provided on the output shaft, and the driving gear meshes with the planetary gear on the planetary disk closest to the driving motor.

[0011] Preferably, a connector is provided at the front end of the body, and the tool head is detachably mounted in the connector.

[0012] Preferably, a connecting piece is provided in the connector, one end of the connecting piece is clamped with the transmission rod, and the other end is cooperatively connected with the tool head.

[0013] Preferably, the cross-section of the rear end of the tool head is hexagonal, and a matching hexagonal groove is provided at one end of the connecting piece connected to the tool head.

[0014] Preferably, a limiting recess is provided at the rear of the tool head, and a limiting bead is provided on the inner side of the connector, and the limiting bead is matched and connected with the limiting recess.

[0015] Preferably, a charging port is also provided on the main body, and the charging port is fixedly connected to the control board.

[0016] The beneficial effects of the utility model are as follows: the battery and the electrode sheet A are detachable, so that when power off is required, the user can quickly separate the battery from the electrode sheet A to achieve rapid power off; the tool head can be detachably installed, so that the user can select a suitable tool head for installation according to needs, so that the device can adapt to a variety of different working environments and needs, thereby eliminating the need to carry multiple tools and improving convenience; by providing a limiting recess at the tail of the tool head and providing a limiting bead on the inner side of the connector, the limiting function of the tool head is achieved, thereby improving the safety of the use process; multiple coaxial transmission units are provided and evenly arranged along the axial direction, thereby achieving a multi-stage deceleration function, which not only improves the stability and service life of the tool, but also enables the tool to adapt to a variety of different working environments and needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the utility model.

[0020] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A.

[0021] Figure 4 It is a three-dimensional schematic diagram of the internal structure of the utility model.

[0022] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point B.

[0023] Figure 6 It is a three-dimensional cross-sectional view of the utility model.

[0024] Figure 7 yes Figure 6 A partial enlarged schematic diagram of point C.

[0025] Figure 8 It is a three-dimensional structural schematic diagram of the driving motor and the transmission mechanism of the utility model in the coordinated state.

[0026] Fig. 9 It is an exploded view of the transmission mechanism of the utility model.

[0027] Fig.10 It is an exploded view of the transmission mechanism of the utility model.

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the transmission unit of the utility model.

[0029] In the figure: 1. main body, 2. battery, 3. control board, 4. switch, 5. connector, 6. tool head, 7. charging port, 8. driving motor, 81. driving gear, 9. transmission mechanism, 91. transmission unit, 911. planetary plate, 912. planetary gear, 913. transmission gear, 92. transmission rod, 10. electrode sheet A, 11. electrode sheet B, 12. limiting bead, 13. connecting piece. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments described in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1:

[0031] like Figures 1 to 11 As shown, the utility model is an electric tool with a quick power-off protection device that is adapted to EU standards, comprising a body 1, a tool head 6 is detachably provided at the front end of the body 1, a connector 5 is provided at the front end of the body 1, the tool head 6 is detachably installed in the connector 5, a limiting recess is provided at the tail of the tool head 6, a limiting bead 12 is provided on the inner side of the connector 5, the limiting bead 12 is matched and connected with the limiting recess, a connecting piece 13 is provided in the connector 5, one end of the connecting piece 13 is clamped with the transmission rod 92, and the other end is matched and connected with the tool head 6, the cross-section of the tail end of the tool head 6 is hexagonal, and a matching hexagonal groove is provided at one end of the connecting piece 13 connected to the tool head 6, a battery 2 is detachably provided in the body 1, the battery 2 is connected to a drive motor 8 through a control board 3, the drive motor 8 is connected to the tool head 6 through a transmission mechanism 9, and a transmission mechanism 9 is provided near one end of the tool head 6 There is a transmission rod 92, the transmission mechanism 9 includes a plurality of transmission units 91 coaxially arranged and uniformly arranged along the axial direction, the transmission unit 91 includes a planetary disk 911, and a plurality of planetary gears 912 are uniformly fixedly arranged along the circumference on one side of the planetary disk 911, and the planetary gears 912 are meshed with a transmission gear 913 fixedly arranged on the adjacent planetary disk 911, the output shaft of the drive motor 8 is coaxial with the transmission unit 91, and a driving gear 81 is arranged on the output shaft, and the driving gear 81 is meshed with the planetary gear 912 on the planetary disk 911 closest to the drive motor 8, a switch 4 is also arranged on the outside of the body 1 to cooperate with the control board 3, one end of the battery 2 is fixedly connected to the electrode sheet B11, and the other end is abutted against the electrode sheet A10, the electrode sheet A10 and the electrode sheet B11 are both connected to the control board 3, and a charging port 7 is also arranged on the body 1, and the charging port 7 is fixedly connected to the control board 3.

[0032] In the above embodiments, the tool head 6 includes a screwdriver bit, a grinding head, and the like.

[0033] In the above embodiment, the battery 2 is a rechargeable battery and can be charged by an external power source through the charging port 7 .

[0034] When in use, turn on the switch 4, drive the motor 8 to operate, drive the driving gear 81 to rotate, drive the planetary gear 912 connected thereto to rotate, and thus drive the planetary disk 911 to rotate. Since the gear ratio of the planetary gear 912 and the driving gear 81 is greater than 1, the rotation speed of the planetary disk 911 is less than the rotation speed of the driving gear 81, thereby realizing a first-stage deceleration. The transmission gear 917 arranged on the other side of the planetary disk 911 rotates synchronously, driving the planetary gear 912 on the planetary disk 911 of the next-stage transmission unit 91 meshed therewith to rotate, thereby driving the planetary disk 911 to rotate. Since the gear ratio of the planetary gear 912 and the transmission gear 917 is also greater than 1, the rotation speed of the planetary disk 911 is less than the rotation speed of the transmission gear 917, thereby realizing a second-stage deceleration. The subsequent deceleration transmission is completed in the same process. The transmission rod 92 on the transmission mechanism 9 drives the connecting piece 13 to rotate, thereby driving the tool head 6 to rotate and work. When power is cut off, open the main body 1, separate the battery 2 from the electrode sheet A10, and the device can be disconnected.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electric tool with a quick power-off protection device adapted to EU standards, comprising a body (1), a tool head (6) being detachably provided at the front end of the body (1), characterized in that: A battery (2) is detachably arranged in the body (1), and the battery (2) is connected to a drive motor (8) via a control board (3). The drive motor (8) is connected to the tool head (6) via a transmission mechanism (9). A switch (4) is also arranged on the outside of the body (1) and is connected to the control board (3). One end of the battery (2) is fixedly connected to an electrode sheet B (11), and the other end is in contact with an electrode sheet A (10). Both the electrode sheet A (10) and the electrode sheet B (11) are connected to the control board (3).

2. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 1, characterized in that: A transmission rod (92) is arranged on one end of the transmission mechanism (9) close to the tool head (6), and the transmission mechanism (9) comprises a plurality of transmission units (91) which are coaxially arranged and evenly arranged along the axial direction.

3. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 2, characterized in that: The transmission unit (91) comprises a planetary disk (911), and a plurality of planetary gears (912) are evenly and fixedly arranged along the circumference of one side of the planetary disk (911), and the planetary gears (912) are meshed with transmission gears (913) fixedly arranged on the adjacent planetary disk (911).

4. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 3, characterized in that: The output shaft of the drive motor (8) is coaxial with the transmission unit (91), and a driving gear (81) is provided on the output shaft. The driving gear (81) meshes with the planetary gear (912) on the planetary disk (911) closest to the drive motor (8).

5. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 2, characterized in that: The front end of the body (1) is provided with a connector (5), and the tool head (6) is detachably mounted in the connector (5).

6. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 5, characterized in that: A connecting piece (13) is provided in the connector (5), one end of the connecting piece (13) is clamped with the transmission rod (92), and the other end is matched and connected with the tool head (6).

7. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 6, characterized in that: The cross section of the rear end of the tool head (6) is hexagonal, and a matching hexagonal groove is provided at one end of the connecting piece (13) connected to the tool head (6).

8. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 5, characterized in that: A limiting recess is arranged at the rear of the tool head (6), and a limiting bead (12) is arranged on the inner side of the connector (5), and the limiting bead (12) is matched and connected with the limiting recess.

9. The electric tool with a rapid power-off protection device adapted to EU standards according to claim 1, characterized in that: The main body (1) is also provided with a charging port (7), and the charging port (7) is fixedly connected to the control panel (3).

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