Replacement head external hanging device and handheld electric tool assembly

Abstract

The utility model provides a replacement head external hanging device and a handheld electric tool assembly, the replacement head external hanging device is installed on a handheld electric tool, the replacement head external hanging device comprises a binding installation belt and a storage piece, and the binding installation belt is configured to be installed on the handheld electric tool in a winding mode; the storage part is provided with a storage part, the storage part is configured to store and place the replacement head, and the storage part is installed on the handheld electric tool through the binding installation belt. Due to the arrangement of the replacement head external hanging device, a user can conveniently and rapidly replace the replacement head, the time for the user to rummage the replacement head in a tool box or a tool bag is saved, and the replaced replacement head can be placed in the storage part, is convenient to store and is not prone to being lost.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electric tools, and in particular to a replacement head external device and a handheld electric tool assembly. Background Art

[0002] Handheld power tools such as electric drills, electric screwdrivers and electric hammers are a type of power tools that are easy to carry and operate.

[0003] In the related art, handheld power tools such as electric drills, electric screwdrivers, and electric hammers usually have multiple replacement heads of different specifications and models, and users can select the appropriate replacement heads of different specifications and models for construction according to the usage scenario. For example, an electric drill is usually equipped with multiple drill bits, and the specifications and models of the multiple drill bits are different. Users can select drill bits according to the size of the hole to be drilled; for another example, an electric screwdriver is usually equipped with multiple screwdriver heads (batch heads), and users can select the appropriate screwdriver head according to the screw to operate.

[0004] When using handheld power tools such as electric drills, electric screwdrivers and electric hammers, it is often necessary to replace replacement heads. However, replacement heads are usually stored in tool boxes or tool bags. When users need to replace replacement heads, they need to search for them in the tool boxes or tool bags, which makes replacement heads inconvenient and wastes time. Utility Model Content

[0005] The embodiments of the present application provide a replacement head external device and a handheld power tool assembly, which are used to solve the technical problems of inconvenient replacement and time-consuming searching for replacement when replacing a replacement head of a handheld power tool.

[0006] The embodiments of the present application provide the following technical solutions to solve the above technical problems:

[0007] The embodiment of the present application provides a replacement head external mounting device for mounting on a handheld power tool, the replacement head external mounting device comprising:

[0008] A tie-down mounting belt, the tie-down mounting belt being configured to be wound around and mounted on the handheld power tool;

[0009] A storage piece is provided with a storage portion, the storage portion is configured to store and place a replacement head, and the storage piece is installed on the handheld power tool through a binding mounting belt.

[0010] Beneficial effects of the embodiments of the present application: The replacement head external device provided in the embodiments of the present application includes a binding mounting belt and a storage member, and the storage member is used to store and place the replacement head of the handheld power tool. For example, if the handheld power tool is an electric drill, the replacement head corresponds to a drill bit, if the handheld power tool is an electric screwdriver, the replacement head corresponds to a screwdriver bit, and if the handheld power tool is an electric hammer, the replacement head corresponds to an electric hammer screwdriver. The storage member is installed on the handheld power tool through the binding mounting belt, and the user can place the commonly used replacement head in the storage member. When the user uses the handheld power tool and needs to replace the replacement head, the user can directly extract the required replacement head from the storage member and install it on the handheld power tool. The replaced replacement head can be placed in the storage member. This setting can quickly get the appropriate replacement head, making the replacement of the replacement head more convenient, saving the user's time to search for the replacement head in the tool box or tool bag, and the replaced replacement head can be placed in the storage member, which is convenient for storage and not easy to lose.

[0011] In a possible implementation, the restraining mounting belt is an elastic belt.

[0012] In a possible implementation, the storage member has a binding portion;

[0013] The binding installation belt has a tightening edge, and the tightening edge tightens and fixes the binding part between the tightening edge and the handheld power tool;

[0014] The storage piece is fastened and fixed to the binding portion by the tightening edge, so that the storage piece is installed on the handheld power tool.

[0015] In a possible implementation manner, the tightening edge includes a first tightening edge and a second tightening edge;

[0016] The binding portion includes a first binding edge and a second binding edge, the first binding edge and the second binding edge are located on opposite sides of the storage component, the first binding edge is tightened between the first tightening edge and the handheld power tool, and the second binding edge is tightened between the second tightening edge and the handheld power tool.

[0017] In a possible implementation manner, the handheld power tool includes a main body and a handle, and the handle is connected to the main body;

[0018] The restraint installation belt comprises a restraint belt body and a connecting buckle, the restraint belt body has a first mounting opening and a second mounting opening, the first mounting opening and the second mounting opening are arranged at intervals in the length direction of the restraint belt body;

[0019] The restraint belt body is sleeved at the junction of the handle portion and the main body from the first mounting opening, and the restraint belt body is sleeved at the head of the main body from the second mounting opening;

[0020] The connecting buckle connects two ends of the binding belt body in the length direction, and the connecting buckle is arranged at the tail end of the main body.

[0021] In a possible implementation, one end of the handle portion close to the main body portion extends toward the head of the main body portion along the extension direction of the main body portion to form a handle extension edge, and an illuminating lamp is provided at the end of the handle extension edge close to the head of the main body portion;

[0022] A light-transmitting opening is provided between the first mounting opening and the second mounting opening;

[0023] The binding belt body between the first mounting opening and the light-transmitting opening is tightened on a side of the extending edge of the handle away from the main body;

[0024] The binding belt body between the second mounting opening and the light-transmitting opening is tightened on a side of the extending edge of the handle close to the main body.

[0025] In a possible implementation manner, the restraint belt body has a third installation opening, and the third installation opening is located at a side of the main body away from the handle portion;

[0026] In the width direction of the strap body, two sides of the strap body at the first installation opening are respectively a first side and a second side, and two sides of the strap body at the third installation opening are respectively a third side and a fourth side, and the first side and the third side are on the same side;

[0027] The first side serves as the first tightening side, the third side serves as the second tightening side, and the storage portion is located between the first side and the third side; or, the second side serves as the first tightening side, the fourth side serves as the second tightening side, and the storage portion is located between the second side and the fourth side; or, the third side serves as the first tightening side, the fourth side serves as the second tightening side, and the storage portion is located between the third side and the fourth side.

[0028] In a possible implementation manner, the restraint belt body is provided with a first connection port at one end in the length direction and a second connection port at the other end;

[0029] The connecting buckle connects the first connecting port and the second connecting port.

[0030] In a possible implementation, the connecting buckle is provided with a magnetic member capable of absorbing ferromagnetic materials.

[0031] In a possible implementation, the connecting buckle includes a connecting edge, a first connecting hook and a second connecting hook;

[0032] The connecting edge has a first end and a second end opposite to each other, the first end is bent toward a side of the connecting edge close to the handheld power tool to form the first connecting hook, and the second connecting hook is bent toward a side of the connecting edge away from the handheld power tool to form the second connecting hook;

[0033] The first connecting hook is hooked to one end of the restraining belt body in the length direction, and the second connecting hook is hooked to the other end of the restraining belt body in the length direction;

[0034] The magnetic member is wrapped inside the connecting edge and is located in a region where the connecting edge is opposite to the first connecting hook.

[0035] In a possible implementation manner, the restraining portion further includes a connecting portion;

[0036] The first binding edge and the second binding edge are respectively connected to two opposite sides of the connecting portion;

[0037] The storage portion is connected to the connection portion.

[0038] In a possible implementation manner, the first binding edge includes an arcuate edge, an extended edge and a blocking protrusion;

[0039] One side of the arcuate edge in the circumferential direction is connected to the connecting portion, and the other side is connected to the extending edge, and the opening of the arcuate edge faces away from the handheld power tool;

[0040] The two ends of the extended edge in the length direction respectively extend to the two sides of the arc-shaped edge in the length direction, and extend out of the two ends of the arc-shaped edge in the length direction, and the two ends of the extended edge extending out of the arc-shaped edge are respectively provided with protruding edges, and each protruding edge forms a bayonet with the end of the arc-shaped edge on the corresponding side;

[0041] The blocking protrusion is connected to a side of the extending edge facing away from the handheld power tool;

[0042] The first binding edge is configured such that the first tightening edge is tightened on the arc edge, the blocking protrusion blocks the first tightening edge from coming out of the arc edge, the first tightening edge is clamped in the bayonet, and the protruding edge is pressed on the first tightening edge to block the first tightening edge from coming out of the arc edge;

[0043] The structure of the second binding edge is the same as that of the first tightening edge.

[0044] In a possible implementation manner, the connecting portion is provided with at least one mounting hole;

[0045] The receiving portion is provided with mounting protrusions, the number of the mounting protrusions is the same as the mounting holes, and they correspond one to one. In the corresponding mounting protrusions and mounting holes, the mounting protrusions pass through the mounting holes and are fixed by the mounting holes.

[0046] In a possible implementation manner, the storage portion is provided with at least one storage hole;

[0047] The storage hole is configured to insert and store the replacement head.

[0048] In a possible implementation, a clearance opening is provided in the middle of the receiving hole;

[0049] When there are a plurality of receiving holes, the plurality of receiving holes are spaced apart and distributed along a first direction, and the openings of the receiving holes are connected, and the first direction is perpendicular to the axial direction of the receiving holes.

[0050] The embodiment of the present application further provides a handheld power tool assembly, which includes a handheld power tool and a replacement head external mounting device as described in any of the above solutions;

[0051] The binding installation belt of the replacement head external device is installed around the handheld power tool, and the storage component of the replacement head external device is installed on the handheld power tool through the binding installation belt.

[0052] The beneficial effects of the handheld power tool provided by the embodiment of the present application are the same as the beneficial effects of the above-mentioned replacement head external attachment device, and will not be repeated here.

[0053] In addition to the technical problems solved by the present application, the technical features that constitute the technical solution, and the beneficial effects brought about by the technical features of the technical solution described above, other technical problems that can be solved by the replacement head external device and the handheld power tool assembly provided by the present application, other technical features included in the technical solution, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0055] Figure 1 A schematic diagram of a restraining mounting belt according to an embodiment of the present application;

[0056] Figure 2 A schematic diagram of a storage unit according to an embodiment of the present application;

[0057] Figure 3 This is a schematic diagram of a restraining portion according to an embodiment of the present application;

[0058] Figure 4 This is a schematic diagram of a replacement head external device installed on a handheld power tool according to an embodiment of the present application;

[0059] Figure 5 This is a schematic diagram of a connecting buckle according to an embodiment of the present application.

[0060] Description of reference numerals:

[0061] 100. Tie-down mounting strap;

[0062] 110, first mounting port; 120, second mounting port; 130, third mounting port; 140, first connecting port; 150, connecting buckle;

[0063] 111, first side; 112, second side;

[0064] 131, third side; 132, fourth side;

[0065] 151, magnetic component installation position; 152, connecting edge; 153, first connecting hook; 154, second connecting hook; 155, first end; 156, second end;

[0066] 200, storage pieces;

[0067] 210, storage portion; 220, restraint portion;

[0068] 211, storage hole; 212, give way opening;

[0069] 221, first binding edge; 222, second binding edge; 223, connecting portion;

[0070] 2211, arcuate edge; 2212, extended edge; 2213, blocking convexity; 2214, protruding edge; 2215, bayonet;

[0071] 2231, mounting hole;

[0072] 300. Hand-held power tools;

[0073] 310, handle portion; 320, main body portion;

[0074] 400. Replacement head.

[0075] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0077] In an embodiment of the present application, the handheld power tool has a plurality of replacement heads of different specifications and models. Exemplarily, the handheld power tool may be an electric drill, an electric screwdriver, or an electric hammer. For example, if the handheld power tool is an electric drill, the replacement head corresponds to a drill bit, if the handheld power tool is an electric screwdriver, the replacement head corresponds to a screwdriver bit, and if the handheld power tool is an electric hammer, the replacement head corresponds to an electric hammer screwdriver bit.

[0078] like Figure 1 , Figure 2 and Figure 4 As shown, the replacement head external mounting device provided in the embodiment of the present application is used to be installed on a handheld power tool 300. The replacement head external mounting device includes a binding mounting belt 100 and a storage component 200. The binding mounting belt 100 is configured to be wrapped around and installed on the handheld power tool 300. The storage piece 200 is provided with a storage portion 210, and the storage portion 210 is configured to store and place the replacement head 400. The storage piece 200 is installed on the handheld power tool 300 by means of the binding mounting belt 100. The user can place the commonly used replacement head 400 in the storage piece 200. When the user uses the handheld power tool 300 and needs to replace the replacement head 400, the user can directly extract the required replacement head 400 from the storage piece 200 and install it on the handheld power tool 300. The replaced replacement head 400 can be placed in the storage piece 200. This setting can quickly obtain a suitable replacement head 400, making the replacement of the replacement head 400 faster and saving the user's time to search for the replacement head 400 in the tool box or tool bag. In addition, the replaced replacement head 400 can be placed in the storage piece 200, which is convenient for storage and not easy to lose.

[0079] It should be noted that the number of the restraining installation belts 100 is not limited, and the winding method is not limited. There can be multiple restraining installation belts 100, and the multiple restraining installation belts 100 are connected in sequence and wound around the handheld power tool 300. In the embodiment of the present application, the number of the restraining installation belt 100 is one as an example.

[0080] In addition, it is worth explaining that in the embodiment of the present application, the storage member is installed on the handheld power tool by means of a binding mounting belt, which means that the storage member and the binding mounting belt can be an integral structure or a split structure, that is, the storage member and the binding mounting belt can be matched in such a way that the storage member is installed on the binding mounting belt, and the binding mounting belt is wound around and installed on the handheld power tool, whereby the storage member is installed on the handheld power tool by means of the binding mounting belt, wherein the storage member can be installed on the binding mounting belt in a detachable manner or in a non-detachable manner, or the storage member and the binding mounting belt can be an integrally formed structure. The storage member and the binding mounting belt can also be matched in such a way that the storage member is installed on the binding mounting belt by tightening the binding mounting belt. In the embodiment of the present application, a detailed description is given by taking the storage member being installed on the binding mounting belt by tightening the binding mounting belt as an example.

[0081] In some embodiments of the present application, the tie-down mounting belt 100 is an elastic belt. Exemplarily, the tie-down mounting belt 100 is a rubber belt.

[0082] In some embodiments of the present application, the storage member 200 has a tie portion 220. The tie mounting belt 100 has a tightening edge, and the tightening edge tightens and fixes the tie portion 220 between the tightening edge and the handheld power tool 300. The storage member 200 tightens and fixes the tie portion 220 through the tightening edge, so that the storage member 200 is installed on the handheld power tool 300.

[0083] Exemplarily, the tightening edge includes a first tightening edge and a second tightening edge. The binding portion 220 includes a first tightening edge 221 and a second tightening edge 222, the first tightening edge 221 and the second tightening edge 222 are located on opposite sides of the storage member 200, the first tightening edge 221 is tightened between the first tightening edge and the handheld power tool 300, and the second tightening edge 222 is tightened between the second tightening edge and the handheld power tool 300. The first tightening edge and the second tightening edge tighten the opposite sides of the storage member 200 respectively, thereby being able to firmly tighten the storage member 200 on the handheld power tool 300.

[0084] like Figure 4 As shown, in this embodiment, the handheld power tool 300 includes a main body 320 and a handle 310 , and the handle 310 is connected to the main body 320 .

[0085] like Figure 1 and Figure 4As shown, the binding installation belt 100 includes a binding belt body and a connecting buckle 150. The binding belt body has a first installation opening 110 and a second installation opening 120. The first installation opening 110 and the second installation opening 120 are arranged at intervals in the length direction of the binding belt body. The binding belt body is sleeved at the junction of the handle part 310 and the main body 320 from the first installation opening 110, and the binding belt body is sleeved at the head of the main body 320 from the second installation opening 120. That is, when the binding installation belt 100 is wound around the handheld power tool 300, the first installation opening 110 is a clearance opening for the binding installation belt 100 to be sleeved on the handle part 310, and the second installation opening 120 is a clearance opening for the binding installation belt 100 to be sleeved on the head of the main body 320. When the restraint installation belt 100 is wrapped around the handheld power tool 300, the restraint belt body is mounted on the junction of the handle portion 310 and the main body portion 320 from the first mounting opening 110, and the restraint belt body is mounted on the head of the main body portion 320 from the second mounting opening 120. The connecting buckle 150 connects the two ends of the restraint belt body in the length direction, and the connecting buckle 150 is arranged at the tail end of the main body portion 320, thereby realizing the restraint installation belt 100 being wrapped around and installed on the handheld power tool 300.

[0086] It should be noted that the head of the main body 320 is a side of the main body 320 where the output end is set.

[0087] In some embodiments of the present application, the end of the handle portion 310 of the handheld power tool 300 close to the main body 320 extends toward the head of the main body 320 along the extension direction of the main body 320 (the axial direction of the output end of the main body 320) to form a handle extension edge 2212, and an illuminating lamp is provided at the end of the handle extension edge 2212 close to the head of the main body 320. A light-transmitting opening is provided between the first mounting opening 110 and the second mounting opening 120, and the binding belt body between the first mounting opening 110 and the light-transmitting opening is tightened on the side of the handle extension edge 2212 away from the main body 320, and the binding belt body between the second mounting opening 120 and the light-transmitting opening is tightened on the side of the handle extension edge 2212 close to the main body 320. This prevents the binding installation belt 100 from blocking the illuminating lamp when it is installed on the handheld power tool 300 with the illuminating lamp provided on the handle extension edge 2212.

[0088] It should be noted that the tie-down mounting belt 100 may or may not be provided with a light-through hole, which is not specifically limited here. For a handheld power tool 300 that does not have a lighting lamp on the handle extension edge 2212, the tie-down mounting belt 100 may be provided with a light-through hole. Figure 1 For a handheld power tool 300 with a light on the handle extension edge 2212, a tie-down mounting belt 100 with a light through hole can be selected to prevent the tie-down mounting belt 100 from blocking the light when the tie-down mounting belt 100 is installed on the handheld power tool 300.

[0089] Continue reading Figure 1 and Figure 4 In some embodiments of the present application, the strap body has a third installation opening 130, and the third installation opening 130 is located on the side of the main body 320 away from the handle portion 310. In the width direction of the strap body, the two sides of the strap body at the first installation opening 110 are respectively the first side 111 and the second side 112, and the two sides of the strap body at the third installation opening 130 are respectively the third side 131 and the fourth side 132, and the first side 111 and the third side 131 are on the same side. The first side 111 serves as the first tightening side, the third side 131 serves as the second tightening side, and the storage portion 210 is located between the first side 111 and the third side 131; or, the second side 112 serves as the first tightening side, the fourth side 132 serves as the second tightening side, and the storage portion 210 is located between the second side 112 and the fourth side 132; or, the third side 131 serves as the first tightening side, the fourth side 132 serves as the second tightening side, and the storage portion 210 is located between the third side 131 and the fourth side 132. That is to say, after the restraint belt body is installed on the handheld power tool 300, on the circumference of the main body 320 (the axial direction around the output end of the main body 320), the first side 111, the third side 131, the fourth side 132 and the second side 112 are spaced apart and adjacent in sequence, and the storage piece 200 can be installed between the first side 111 and the third side 131, or between the second side 112 and the fourth side 132, or between the third side 131 and the fourth side 132, that is, the storage piece 200 can be installed on the left side, right side or top side of the main body 320, and the installation position is flexible, and the user can choose the installation position according to his or her own comfort and habits.

[0090] Exemplarily, in some embodiments of the present application, a first connection port 140 is provided at one end of the restraining belt body in the length direction, and a second connection port is provided at the other end, and a connecting buckle 150 connects the first connection port 140 and the second connection port, so that the restraining mounting belt 100 is wrapped around and installed on the handheld power tool 300.

[0091] like Figure 1 , Figure 4 and Figure 5As shown, in some embodiments of the present application, the connecting buckle 150 is provided with a magnetic part that can absorb ferromagnetic materials. Exemplarily, the magnetic part can be a magnet. On the one hand, the provision of the magnetic part facilitates the storage and placement of the restraining mounting belt. It can be adsorbed on the ferrous material to facilitate storage and reduce the possibility of loss. On the other hand, the magnetic part is provided on the connecting buckle 150, located at the tail end of the main body 320. When the user uses a handheld power tool, the magnetic part can absorb screws, etc., which is convenient for the user's operation and reduces the trouble of the user to search for screws. Exemplarily, the magnetic part can be coated in the connecting buckle, or the connecting buckle can be provided with an installation groove, and the magnetic part is built-in and installed in the installation operation. As shown in FIG. Figure 1 and Figure 4 As shown, the installation position 150 of the magnetic member is located on the side of the connecting buckle 150 facing away from the handheld power tool.

[0092] In some embodiments of the present application, Figure 4 and Figure 5 As shown, the connecting buckle 150 includes a connecting edge 152, a first connecting hook 153 and a second connecting hook 154. The connecting edge 152 has a first end 155 and a second end 156 opposite to each other. The first end 155 is bent toward the side of the connecting edge 152 close to the handheld power tool to form the first connecting hook 153, and the second connecting hook 154 is bent toward the side of the connecting edge 152 away from the handheld power tool to form the second connecting hook 154. The first connecting hook 153 is hooked to one end of the restraint belt body in the length direction, and the second connecting hook 154 is hooked to the other end of the restraint belt body in the length direction. The magnetic member is wrapped in the connecting edge 152 and is located in the area of ​​the connecting edge opposite to the first connecting hook 153. When the connecting buckle 150 is connected to the strap body, the first connecting hook 153 is first hooked to one end of the strap body in the length direction, and then the other end of the strap body in the length direction is dragged to hook to the second connecting hook 154. This arrangement facilitates the operation of connecting the connecting buckle 150 to the strap body, and the magnetic part is located in the area opposite to the connecting edge and the first connecting hook 153, so that the magnetic part is located on the side of the connecting buckle 150150 that is not facing the handheld power tool, which facilitates the magnetic part to absorb screws, etc. Of course, the user can also first hook the second connecting hook 154 and one end of the strap body in the length direction, and then hook the first connecting hook 153 and the other end of the strap body in the length direction. The specific operation method is not specifically limited here.

[0093] Exemplarily, the connecting edge 152 corresponds to the second connecting hook 154, and the side facing the handheld power tool is flush with the side facing the handheld power tool of the first connecting hook 153. This arrangement allows the side of the connecting buckle 150 facing the handheld power tool to fit with the rear end surface of the handheld power tool, making the restraining mounting belt more regular, neat and beautiful after being installed on the handheld power tool.

[0094] In some embodiments of the present application, Figure 2 and Figure 3 As shown, the binding portion 220 also includes a connecting portion 223, a first binding edge 221 and a second binding edge 222 are respectively connected to opposite sides of the connecting portion 223, and the storage portion 210 is connected to the connecting portion 223. Exemplarily, the connecting portion 223, the first binding edge 221 and the second binding edge 222 can be an integrally formed structure. This arrangement facilitates the processing and assembly of the storage member 200. Exemplarily, the materials of the storage portion 210 and the binding portion 220 are different. The storage portion 210 is made of rubber material, which is convenient for plugging and unplugging the replacement head 400, and the binding portion 220 is made of plastic material to save costs.

[0095] Please continue reading Figure 2 , Figure 3 and Figure 4 The first binding edge 221 includes an arcuate edge 2211, an extended edge 2212 and a blocking protrusion 2213. One side of the arcuate edge 2211 in the circumferential direction (the direction of the arc of the arcuate edge 2211) is connected to the connecting portion 223, and the other side is connected to the extended edge 2212. The opening of the arcuate edge 2211 faces away from the handheld power tool 300. The two ends of the extended edge 2212 in the length direction extend to the two sides of the arcuate edge 2211 in the length direction, and extend out of the two ends of the arcuate edge 2211 in the length direction. The two ends of the extended edge 2212 extending out of the arcuate edge 2211 are respectively provided with protruding edges 2214, and each protruding edge 2214 forms a bayonet 2215 with the end of the arcuate edge 2211 on the corresponding side. The blocking protrusion 2213 is connected to the side of the extended edge 2212 facing away from the handheld power tool 300. The first binding edge 221 is configured such that the first tightening edge is tightened on the arc edge 2211, the blocking protrusion 2213 blocks the first tightening edge from escaping from the arc edge 2211, the first tightening edge is clamped in the clamping hole 2215, and the protruding edge 2214 is pressed on the first tightening edge to block the first tightening edge from escaping from the arc edge 2211. Figure 4 As shown, the arc groove formed by the arc edge 2211 is used to accommodate the first tightening edge, the blocking protrusion 2213 is used to prevent the first tightening edge from moving toward the side away from the storage portion 210, and the two protruding edges 2214 are respectively pressed on the first tightening edge to prevent the first tightening edge from moving toward the side away from the main body 320. The blocking protrusion 2213 and the two protruding edges 2214 cooperate to prevent the first tightening edge from escaping from the arc groove.

[0096] In this embodiment, the structure of the second binding edge 222 is the same as that of the first tightening edge, that is, the second binding edge 222 also includes an arcuate edge 2211, an extended edge 2212, and a blocking protrusion 2213. In this embodiment, the structure of the second binding edge 222 is the same as that of the first tightening edge, excluding the size, that is, the size of the arcuate edge 2211, the extended edge 2212, and the blocking protrusion 2213 of the second binding edge 222 may be the same as or different from that of the arcuate edge 2211, the extended edge 2212, and the blocking protrusion 2213 of the first tightening edge, which is not specifically limited here.

[0097] For example, Figure 3 As shown, the connection portion 223 is provided with at least one mounting hole 2231. The storage portion 210 is provided with mounting protrusions, the number of which is the same as the mounting holes 2231, and they correspond one to one. In the corresponding mounting protrusions and mounting holes 2231, the mounting protrusions pass through the mounting holes 2231 and are fixed by the mounting holes 2231.

[0098] In some embodiments of the present application, Figure 2 As shown, the storage portion 210 is provided with at least one storage hole 211, and the storage hole 211 is configured to insert and store the replacement head 400, that is, the storage hole 211 is used to insert the replacement head 400, and the angle between the axial direction of the storage hole 211 and the axial direction of the output end of the handheld power tool 300 is less than 10°, such as 3°, 5°, 8°, etc., that is to say, the axial direction of the storage hole 211 is roughly the same as the axial direction of the output end of the handheld power tool 300, and is almost parallel. This arrangement facilitates the user to plug and unplug the replacement head 400.

[0099] Please continue reading Figure 2 In some embodiments of the present application, a clearance opening 212 is provided in the middle of the storage hole 211. When there are multiple storage holes 211, the multiple storage holes 211 are spaced apart along the first direction, and the clearance openings 212 of each storage hole 211 are connected, and the first direction is perpendicular to the axial direction of the storage hole 211. The provision of the clearance opening 212 facilitates the extraction of the replacement head 400 with a shorter length inserted in the storage hole 211. The replacement head 400 with a shorter length is easily hidden in the storage hole 211, and it is inconvenient to extract it at this time. The clearance opening 212 is provided in the middle of the storage hole 211, and the user can push the replacement head 400 out of the storage hole 211 from the clearance opening 212. The clearance opening 212 divides the storage hole 211 into two sections, and the two sections of the storage hole 211 can insert the replacement head 400 respectively. In addition, when there are multiple storage holes 211 and the clearance openings 212 of each storage hole 211 are connected, this configuration allows the connected clearance openings 212 to form a larger opening, which is convenient for user operation.

[0100] An embodiment of the present application also provides a handheld power tool assembly, which includes a handheld power tool 300 and a replacement head external device as described in any of the above schemes, wherein a restraining mounting belt 100 of the replacement head external device is wrapped around and installed on the handheld power tool 300, and a storage component 200 of the replacement head external device is installed on the handheld power tool 300 via the restraining mounting belt 100.

[0101] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0102] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A head replacement external device, characterized in that: Used to be installed on a handheld power tool, the replacement head external mounting device comprises: A tie-down mounting belt, the tie-down mounting belt being configured to be wound around and mounted on the handheld power tool; A storage piece is provided with a storage portion, the storage portion is configured to store and place a replacement head, and the storage piece is installed on the handheld power tool through a binding mounting belt.

2. The head replacement external device according to claim 1, characterized in that: The restraining installation belt is an elastic belt.

3. The head replacement external device according to claim 1, characterized in that: The storage member has a binding portion; The binding installation belt has a tightening edge, and the tightening edge tightens and fixes the binding part between the tightening edge and the handheld power tool; The storage piece is fastened and fixed to the binding portion by the tightening edge, so that the storage piece is installed on the handheld power tool.

4. The head replacement external device according to claim 3, characterized in that: The tightening edge includes a first tightening edge and a second tightening edge; The binding portion includes a first binding edge and a second binding edge, the first binding edge and the second binding edge are located on opposite sides of the storage component, the first binding edge is tightened between the first tightening edge and the handheld power tool, and the second binding edge is tightened between the second tightening edge and the handheld power tool.

5. The head replacement external device according to claim 4, characterized in that: The handheld electric tool comprises a main body and a handle, wherein the handle is connected to the main body; The restraint installation belt comprises a restraint belt body and a connecting buckle, the restraint belt body has a first mounting opening and a second mounting opening, the first mounting opening and the second mounting opening are arranged at intervals in the length direction of the restraint belt body; The restraint belt body is sleeved at the junction of the handle portion and the main body from the first mounting opening, and the restraint belt body is sleeved at the head of the main body from the second mounting opening; The connecting buckle connects two ends of the binding belt body in the length direction, and the connecting buckle is arranged at the tail end of the main body.

6. The head replacement external device according to claim 5, characterized in that: One end of the handle portion close to the main body portion extends toward the head of the main body portion along the extension direction of the main body portion to form a handle extension edge, and an illuminating lamp is provided at the end of the handle extension edge close to the head of the main body portion; A light-transmitting opening is provided between the first mounting opening and the second mounting opening; The binding belt body between the first mounting opening and the light-transmitting opening is tightened on a side of the extending edge of the handle away from the main body; The binding belt body between the second mounting opening and the light-transmitting opening is tightened on a side of the extending edge of the handle close to the main body.

7. The head replacement external device according to claim 5, characterized in that: The restraint belt body has a third mounting opening, and the third mounting opening is located at a side of the main body away from the handle portion; In the width direction of the strap body, two sides of the strap body at the first installation opening are respectively a first side and a second side, and two sides of the strap body at the third installation opening are respectively a third side and a fourth side, and the first side and the third side are on the same side; The first side serves as the first tightening side, the third side serves as the second tightening side, and the storage portion is located between the first side and the third side; or, the second side serves as the first tightening side, the fourth side serves as the second tightening side, and the storage portion is located between the second side and the fourth side; or, the third side serves as the first tightening side, the fourth side serves as the second tightening side, and the storage portion is located between the third side and the fourth side.

8. The head replacement external device according to claim 5, characterized in that: The connecting buckle is provided with a magnetic part capable of absorbing ferromagnetic materials.

9. The head replacement external device according to claim 8, characterized in that: The connecting buckle comprises a connecting edge, a first connecting hook and a second connecting hook; The connecting edge has a first end and a second end opposite to each other, the first end is bent toward a side of the connecting edge close to the handheld power tool to form the first connecting hook, and the second connecting hook is bent toward a side of the connecting edge away from the handheld power tool to form the second connecting hook; The first connecting hook is hooked to one end of the restraining belt body in the length direction, and the second connecting hook is hooked to the other end of the restraining belt body in the length direction; The magnetic member is wrapped inside the connecting edge and is located in a region where the connecting edge is opposite to the first connecting hook.

10. The head replacement external device according to claim 4, characterized in that: The tie portion further includes a connecting portion; The first binding edge and the second binding edge are respectively connected to two opposite sides of the connecting portion; The storage portion is connected to the connection portion.

11. The head replacement external device according to claim 10, characterized in that: The first binding edge includes an arc edge, an extended edge and a blocking protrusion; One side of the arcuate edge in the circumferential direction is connected to the connecting portion, and the other side is connected to the extending edge, and the opening of the arcuate edge faces away from the handheld power tool; The two ends of the extended edge in the length direction respectively extend to the two sides of the arc-shaped edge in the length direction, and extend out of the two ends of the arc-shaped edge in the length direction, and the two ends of the extended edge extending out of the arc-shaped edge are respectively provided with protruding edges, and each protruding edge forms a bayonet with the end of the arc-shaped edge on the corresponding side; The blocking protrusion is connected to a side of the extending edge facing away from the handheld power tool; The first binding edge is configured such that the first tightening edge is tightened on the arc edge, the blocking protrusion blocks the first tightening edge from coming out of the arc edge, the first tightening edge is clamped in the bayonet, and the protruding edge is pressed on the first tightening edge to block the first tightening edge from coming out of the arc edge; The structure of the second binding edge is the same as that of the first tightening edge.

12. The head replacement external device according to any one of claims 1 to 11, characterized in that: The storage portion is provided with at least one storage hole; The storage hole is configured to insert and store the replacement head.

13. The head replacement external device according to claim 12, characterized in that: A clearance opening is provided in the middle of the receiving hole; When there are a plurality of receiving holes, the plurality of receiving holes are spaced apart and distributed along a first direction, and the openings of the receiving holes are connected, and the first direction is perpendicular to the axial direction of the receiving holes.

14. A handheld power tool assembly, characterized in that: It comprises a handheld electric tool and a replacement head external attachment device as claimed in any one of claims 1 to 13; The binding installation belt of the replacement head external device is installed around the handheld power tool, and the storage component of the replacement head external device is installed on the handheld power tool through the binding installation belt.

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