Electric tool capable of being quickly assembled

Abstract

The utility model discloses an electric tool capable of being quickly assembled, which comprises a main machine and an installation head, the main machine is provided with a jack part, the installation head comprises an insertion part and is inserted into the jack part through the insertion part, the main machine is provided with a locking piece in a sliding manner, and the locking piece slides to lock or unlock the installation head inserted into the jack part. According to the electric tool capable of being rapidly assembled, locking and unlocking of the installation head and the main machine part can be achieved only by transversely pressing the locking piece, parts are simplified, meanwhile, the machining precision requirement of the parts is lowered, then the production cost of products is lowered, and the competitiveness of the products and the core is improved.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and in particular to power tools that can be quickly assembled. Background Technology

[0002] Existing power tools are generally one-piece designs with only one type of mounting head, which can only be used for a single task, such as electric drills and electric hammers. To meet the needs of various working conditions, power tools with separate mounting heads that can be replaced have been designed, such as those described in publication number CN218947580U, which allow for the replacement of mounting heads.

[0003] The existing quick-assembly mounting heads all use a rotating locking sleeve for locking. First of all, the rotating locking method requires the locking sleeve to be able to rotate. The entire rotation of the locking sleeve has high requirements for the machining accuracy and surface roughness of the rotating position. During long-term use, the locking sleeve is prone to jamming and cannot be rotated.

[0004] At the same time, the entire rotating locking system has many and complex parts, resulting in high production costs. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a power tool that can be quickly assembled.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a power tool that can be quickly assembled, including a main unit and a mounting head. The main unit has a socket, and the mounting head includes a plug-in part, which is inserted into the socket. A locking member is slidably provided on the main unit, which is used to lock or unlock the mounting head inserted into the socket.

[0007] Its advantages lie in the fact that the mounting head can be locked or unlocked by moving the locking element, simplifying parts and reducing production costs.

[0008] In the above scheme, preferably, the plug-in part includes a guide section, and the plug-in part has a guide hole for adapting to the guide section. After the guide section is inserted into the guide hole, the axial rotation of the mounting head is locked.

[0009] In the above scheme, preferably, the plug portion is provided with a first protrusion, the locking member is provided with a second protrusion, after the plug portion is inserted into the plug hole portion, the second protrusion is located behind the first protrusion in the direction of the mounting head axis, and the locking member slides to make the second protrusion abut or offset from the first protrusion.

[0010] In the above scheme, preferably, the plug part is provided with a locking tongue hole, the locking member is provided with a locking tongue, and after the plug part is inserted into the plug hole, the locking member slides to allow the locking tongue to be inserted into or removed from the locking tongue hole.

[0011] In the above scheme, preferably, the host has a sliding cavity perpendicular to the axis of the insertion hole, and the locking member is guided and slidably disposed in the sliding cavity.

[0012] In the above scheme, preferably, the locking member is provided with pressing blocks on both the left and right sides, and the outer end face of the pressing block extends out of the side of the host. Pressing the left or right pressing block is used to make the locking member slide in the sliding cavity.

[0013] In the above scheme, preferably, the host is equipped with an elastic locking component for elastically locking the locking component.

[0014] In the above scheme, preferably, the locking member has two locking holes, and the main unit has a locking cavity that communicates with and is perpendicular to the sliding cavity. The locking cavity is equipped with a locking ball for locking the locking member in cooperation with the locking holes and a first elastic member for providing elastic force to the locking ball.

[0015] In the above scheme, preferably, the distance between the two locking holes on the locking member is consistent with the distance at which the locking member slides to make the second protrusion abut or offset from the first protrusion, and when the second protrusion abuts or offsets from the first protrusion, one of the locking holes is elastically locked by the locking ball.

[0016] In the above scheme, preferably, the locking member is laterally slidable, with a through hole in the middle of the locking member, and second protrusions symmetrically arranged on the upper and lower end faces of the through hole. The insertion part is provided with a locking section, and the insertion part passes through the through hole via the locking section. First protrusions are symmetrically arranged at the upper and lower positions of the locking section. A first inclined surface is provided on the rear end face of the first protrusion, so that the second protrusion can easily abut against the rear end face of the first protrusion when the locking member slides.

[0017] The beneficial effects of this utility model are: This utility model provides a power tool that can be quickly assembled. It can lock and unlock the mounting head and the main body by simply pressing the locking part laterally, which simplifies the parts and reduces the processing accuracy requirements of the parts, thereby reducing the production cost of the product and improving the product and core competitiveness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the present invention.

[0019] Figure 2 This is a cross-sectional view of the present invention.

[0020] Figure 3 This is a part drawing of this utility model.

[0021] Figure 4 This is a schematic diagram showing the position of the locking element and the mounting head when the present invention is in the locked state.

[0022] Figure 5 This is a schematic diagram showing the position of the locking member and the mounting head when the present invention is in the unlocked state.

[0023] Figure 6 This is a schematic diagram of the locking component and mounting head of this utility model.

[0024] Figure 7 This is a schematic diagram of the circular locking section and the mounting head of this utility model. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: Example 1

[0026] See Figures 1-7 A power tool that can be quickly assembled includes a main body 1 and a mounting head 2. The head of the main body 1 has a socket 11, and a motor shaft for providing power is provided in the socket 11. The mounting head 2 is provided with a plug part 21, which is inserted into the socket 11. At the same time, a bushing connected to the motor shaft is provided on the plug part 21. When the plug part 21 is inserted into the socket 11, the bushing is fitted on the motor shaft, thereby realizing a power connection between the main body 1 and the mounting head 2.

[0027] The motor shaft can be a polygonal shaft or a splined shaft, and the bushing is adapted to the motor shaft to enable the main unit 1 and the mounting head 2 to achieve a power connection.

[0028] The insertion portion 11 is provided with a guide hole 111 for positioning and guidance, and the insertion portion 21 is provided with a guide section 211. The guide section 211 has a polygonal cross-section. The guide hole 111 is adapted to the guide section 211, so that the insertion portion 21 is positioned and guided to be inserted into the insertion portion 11. After being inserted into place, the guide section 211 is located in the guide hole 111. At this time, the mounting head 2 cannot rotate relative to the host 1, so that the power transmission between the host 1 and the mounting head 2 is more stable.

[0029] A locking section is provided on the front end face of the guide section 211. The locking section is annular, and the bushing is located at the center of the locking section. The locking section can be circular or square. In this embodiment, the locking section is square. A first protrusion 212 is provided on both the upper and lower outer end faces of the square locking section. The distance between the outer walls of the upper and lower first protrusions 212 is less than the distance between opposite sides of the guide section 211. Therefore, when the insertion part 21 is inserted into the insertion hole 11, the locking section can freely pass through the guide hole 111. A sliding cavity 13 is provided laterally, and a locking member 12 is slidably disposed in the sliding cavity 13. A pressing block 125 is provided on both the left and right sides of the locking member 12. A through groove communicating with the sliding cavity 13 is provided on the side wall of the main unit 1. The pressing block 125 is guided and slidably disposed on the through groove. When the locking member 12 is guided and slid in the sliding cavity 13, the left and right pressing blocks 125 extend beyond the left and right side walls of the main unit 1. Thus, by pressing the left and right pressing blocks 125 in the direction of the main unit 1, the locking member 12 can move left and right in the sliding cavity 13.

[0030] The locking member 12 has a through hole 123 at its center. The upper and lower end walls of the through hole 123 are provided with second protrusions 121. The second protrusions 121 are adapted to the first protrusions 212 on the locking end. The locking member 12 can move left and right to make the second protrusions 121 abut against or offset from the first protrusions 212.

[0031] When the mounting head 2 is inserted into the socket 11 through the plug part 21, the direction of the second protrusion 121 facing the host 1 is forward. At this time, the first protrusion 212 is located behind the second protrusion 121. The locking member 12 can move left and right to make the second protrusion 121 abut against the rear end surface of the first protrusion 212, which is the locked state, or the second protrusion 121 and the first protrusion 212 are misaligned, which is the unlocked state.

[0032] When the second protrusion 121 is misaligned with the first protrusion 212, the mounting head 2 can be freely assembled or detached from the host 1. When the mounting head 2 needs to be assembled onto the host 1, the second protrusion 121 on the locking member 12 needs to be misaligned with the first protrusion 212. At this time, the plug 21 is inserted into the socket 11 in an oriented manner. When inserted, the first protrusion 212 should be located in the vertical direction. After it is fully installed, the pressing block 215 protruding on the side wall of the host 1 is pressed, so that the first protrusion 212 moves to the rear of the second protrusion 121, and the front end of the first protrusion 212 touches the rear end of the second protrusion 121. At this time, the mounting head 2 is locked by the locking member 12 and cannot be pulled out.

[0033] A first inclined surface 2121 is provided on one side of the rear end face of the first protrusion 212. During the process of the first protrusion 212 moving behind the second protrusion 121, the second protrusion 121 first abuts against the first inclined surface 2121. The drop of the inclined surface 2121 causes the mounting head 2 to be pressed against the host 1. Then, when the front end face of the first protrusion 212 abuts against the rear end face of the second protrusion 121, the mounting head 2 is pressed against the host 1.

[0034] The host 1 is also provided with a locking cavity 14, which is perpendicular to and communicates with the sliding cavity 13. The locking cavity 14 is provided with a first elastic element 141 and a locking ball 142. One end of the first elastic element 141 touches the rear end face of the locking cavity 14, and the other end touches the locking ball 142. The locking ball 142 elastically touches the locking member 12. Two locking holes 123 are provided on the locking member 12. When the two locking holes 123 are aligned with the locking cavity 14, they correspond to the unlocking and locking positions of the locking member 12, respectively.

[0035] When the locking hole 123 is aligned with the locking hole 14, the locking ball 142 touches the edge of the locking hole 123, thereby elastically locking the locking member 12. When no external force is applied to the locking member 12, the locking member 12 does not move, thereby allowing the mounting head 2 to be better inserted into the main unit 1, and at the same time, the mounting head 2 is better locked on the main unit 1. Example 2

[0036] This embodiment is an improvement upon embodiment 1, with the following further modifications: See Figures 1-7 The locking section has a locking tongue hole 213 on its side wall, and a locking tongue 122 is provided on the side wall corresponding to the through hole 123. The head of the locking tongue 122 is provided with an inclined surface for guiding insertion. When the locking member 12 is in the unlocked state, the locking tongue 122 leaves the movement path of the locking section. When the locking member 12 is locked, the locking tongue 122 is aligned with the locking tongue hole 213. Then, during the lateral movement of the locking member 12, the locking tongue 122 is inserted into the locking tongue hole 213, further locking the mounting head 2.

[0037] In Embodiment 1, the locking member 12 only locks the mounting head 2 in the vertical direction. In this embodiment, a lateral locking is added, so that the locking member 12 can lock the mounting head 2 in three directions. Example 3

[0038] The difference from Embodiment 2 lies in the structure of the locking section and locking element 12; all other aspects are the same. See also Figures 1-7The locking section is also provided with a first protrusion 212 for locking on the side. When the locking member 12 is locking, the upper and lower first protrusions 212 lock the mounting head 2. At the same time, the side wall of the through hole 123 abuts against the rear end face of the first protrusion 212, so that the locking member 12 can lock the mounting head 2 in three directions, just like in embodiment 2.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power tool that can be quickly assembled, characterized in that: Including host (1) and installation head (2), the host (1) is set up on the jack part (11), the installation head (2) includes the plug-in part (21), and the plug-in part (21) is inserted in the jack part (11); The host (1) is slidably provided with a locking member (12), which is used to lock or unlock the installation head (2) inserted in the jack part (11).

2. The power tool of claim 1, wherein: The plug-in part (21) includes a guide segment (211) for positioning and guiding, and the jack part (11) is provided with a guide hole (111) for matching the guide segment (211). After the guide segment (211) is inserted into the guide hole (111), the rotation of the installation head (2) in the axial direction is locked.

3. The power tool of claim 2, wherein: The plug-in part (21) is provided with a first protrusion (212), and the locking member (12) is provided with a second protrusion (121). After the plug-in part (21) is inserted into the jack part (11), the second protrusion (121) is located behind the first protrusion (212) in the axial direction of the installation head (2), and the locking member (12) is slidably used to make the second protrusion (121) abut or deviate from the first protrusion (212).

4. The power tool of any of claims 1-3, wherein: The plug-in part (21) is provided with a lock tongue hole (213), and the locking member (12) is provided with a lock tongue (122). After the plug-in part (21) is inserted into the jack part (11), the locking member (12) is slidably used to make the lock tongue (122) inserted or separated from the lock tongue hole (213).

5. The quick-attachable power tool of claim 4, wherein: The host (1) is provided with a sliding cavity (13), and the locking member (12) is slidably arranged in the sliding cavity (13).

6. The quick-attachable power tool of claim 4, wherein: The locking member (12) is provided with a pressing block (125) on the left and right sides, and the outer end surface of the pressing block (125) extends out of the side surface of the host (1). Pressing the left or right pressing block (125) is used to make the locking member (12) slide in the sliding cavity (13).

7. The quick-attachable power tool of claim 4, wherein: The host (1) is provided with an elastic locking member, which is used to elastically lock the locking member (12).

8. The power tool of claim 7, wherein: The locking member (12) is provided with two locking holes (123), and the host (1) is provided with a locking cavity (14) which is communicated with the sliding cavity (13) and perpendicular to the sliding cavity (13). The locking cavity (14) is provided with a locking ball (142) which is used to cooperate with the locking hole (123) to lock the locking member (12) and a first elastic member (141) which provides elastic force for the locking ball (142).

9. The quick-attachable power tool of claim 8, wherein: The distance between the two locking holes (123) on the locking member (12) is consistent with the distance of the locking member (12) sliding to make the second protrusion (121) abut or deviate from the first protrusion (212), and when the second protrusion (121) abuts or deviates from the first protrusion (212), one of the locking holes (123) is elastically locked by the locking ball (142).

10. The quick-attachable power tool of claim 3, wherein: The locking piece (12) is arranged to slide transversely, a through hole (124) is arranged in the middle of the locking piece (12), second protrusions (121) are symmetrically arranged on the upper and lower end faces of the through hole (124), a locking section is arranged on the insertion part (21), the insertion part (21) is arranged to pass through the through hole (124) through the locking section, and first protrusions (212) are symmetrically arranged on the upper and lower positions of the locking section; A first inclined surface (2121) is arranged on the rear end face of the first protrusion (212), so that the second protrusion (121) can abut on the rear end face of the first protrusion (212) when the locking piece (12) slides.

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