An all-in-one work tool

Abstract

The present invention discloses an all-in-one working tool, comprising a working head for working; a replacement part, which is detachably connected to the working head; wherein the working head comprises a first switch, a first operating part and a control motor; the replacement part is an operating rod, on which a second switch and a second operating part are provided; the working head has a first state that can only be operated by the first operating part and a second state that can only be operated by the second operating part; when the working head is in the second state, the operating rod is connected to the working head and makes the first switch in a normally closed state, and the second switch is connected in series with the first switch; or, the replacement part is a battery pack, which is detachably connected to the working head, and when the battery pack is connected to the working head, the working head is in the first state. The advantage is that the working tool of the present invention comprises a replacement part, which can cope with different working environments, and at the same time ensures that only one operating part can be used to work during operation, avoiding the hidden danger of misoperation.

Description

Technical Field

[0001] The present invention relates to the technical field of garden machinery and equipment, and in particular to an all-in-one working tool. Background Art

[0002] With economic development, people's environmental awareness has increased, and the area of ​​gardening and greening has increased year by year. Gardening machinery and equipment are essential tools for gardening and greening projects. The manual working tools commonly used in the past have been eliminated due to their laboriousness, high intensity and low efficiency. Existing electric working tools are becoming more and more popular. There are many types of electric working tools, which usually use rechargeable batteries as power sources. The double safety switch triggers the micro switch to start the motor and operate. Due to the particularity of the gardening working environment, sometimes a shorter working handle is required, and sometimes a longer working handle is required, such as pruning high branches, mowing the lawn, etc. Existing gardening working tools generally use fixed-length handles with single functions and cannot meet the requirements of various operating scenarios. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the object of the present invention is to provide an all-in-one working tool with a replaceable part that can cope with different working environments, while ensuring that only one operating part can be used during operation to avoid the risk of misoperation.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] An all-in-one work tool that includes,

[0006] An operation head, used for performing the operation;

[0007] A replacement part, detachably connected to the working head; wherein the working head comprises a first switch, a first operating part and a control motor, and the first switch has a normally closed state connected to the control motor;

[0008] The replacement part is an operating rod, and the operating rod is provided with a second switch and a second operating part; the working head has a first state in which the first operating part can be used only for operation, and a second state in which the second operating part can be used only for operation; when the working head is in the second state, the operating rod is connected to the working head and makes the first switch in a normally closed state, and the second switch is connected in series with the first switch; or

[0009] The replacement part is a battery pack, and the battery pack is detachably connected to the working head. When the battery pack is connected to the working head, the working head is in a first state.

[0010] Preferably, an abutment structure is provided between the operating rod and the working head, the abutment structure includes a trigger rod linked to the first switch and a push rod for prying the trigger rod, the trigger rod has a first position for touching the first switch to put it in a normally closed state and a second position separated from the first switch, and the operating rod pries the trigger rod to the second position through the push rod.

[0011] Preferably, the trigger rod is arranged in the working head, and the push rod is arranged on the operating rod; a socket is provided on the side of the working head close to the operating rod, and the socket is adapted to the push rod. When the operating rod is connected to the working head, the push rod is inserted into the socket and pries the trigger rod.

[0012] Preferably, a shaft is provided on the inner side of the operating head, and the shaft is arranged on the side of the first switch. The trigger rod is sleeved on the shaft, with one end extending toward the direction of the push rod and the other end extending toward the contact of the first switch; the push rod pushes one end of the trigger rod so that the other end of the trigger rod is tilted to press the contact of the first switch.

[0013] Preferably, a pushing plane is provided on one end of the trigger rod facing the push rod; a pressing plate is provided on one end of the trigger rod facing the contact, the contact is arranged downward, and the pressing plate is located below the contact.

[0014] Preferably, the first operating portion is disposed in front of the contact of the first switch, and the first operating portion includes an extending portion extending toward the trigger rod, and the first operating portion pushes the trigger rod through the extending portion to press the contact of the first switch.

[0015] Preferably, a plug-in structure is provided between the working head and the replacement part, and the plug-in structure includes a plug-in slot and a plug-in end; one of the plug-in slot and the plug-in end is arranged on an end of the working head facing the replacement part, and the other is arranged on an end of the replacement part facing the working head.

[0016] Preferably, the plug-in slot includes a "convex" slot and a card slot, and the card slots are arranged on both sides of the "convex" slot; the plug-in end includes a T-block and an elastic card connector, and the T-block is adapted to the "convex" slot; the elastic card connector includes a card connector, a pressing head and a reset member, the pressing head is movably arranged on the replacement part, the reset member is arranged in the replacement part and abuts against the pressing head or the card connector, the card connector is arranged in the recess of the T-block and adapted to the card slot; the pressing head drives the card connector to perform telescopic movement and resets under the action of the reset member.

[0017] Preferably, an electrical connection terminal assembly is provided between the working head and the replacement part, and the electrical connection terminal assembly includes a spring terminal and a plug-in piece; one of the spring terminal and the plug-in piece is located on an end of the working head facing the replacement part, and the other is arranged on an end of the replacement part facing the working head.

[0018] Preferably, the spring terminal comprises a connecting plate and an elastic supporting portion, the elastic supporting portion is bent toward the inner side of the connecting plate and forms a clamping space inside the connecting plate, and the elastic supporting portion comprises a corner contact for elastically clamping the plug piece.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention includes a variety of replacement parts, such as operating rods or battery packs of different lengths. Users can choose an operating rod of appropriate length or directly install a battery pack to perform operations according to the working environment. When the working head is directly installed with a battery pack, users can only use it through the first operating part. When the working head is connected to the operating rod, users can only drive the working head through the second operating part on the operating rod. During this process, the first switch is in a normally closed state, connected to the control motor, and the first switch is connected in series with the second switch. When the second switch is turned on, the first operating part cannot control the working head. Users can control the on and off of the second switch through the second operating part, thereby controlling the working head, which is safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a working head and an operating rod connected in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure when the working head is connected to the battery pack according to an embodiment of the present invention;

[0023] Figure 3 It is a cross-sectional schematic diagram of the operation head and the operating rod when they are connected according to an embodiment of the present invention;

[0024] Figure 4 for Figure 3 A in the enlarged view;

[0025] Figure 5 A schematic structural diagram of a trigger lever according to an embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of an operation head according to an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the plug-in terminal of an embodiment of the present invention;

[0028] Figure 8 is a schematic cross-sectional structure diagram of a plug-in terminal according to an embodiment of the present invention;

[0029] Fig. 9 It is a schematic cross-sectional structure diagram of another state of the plug-in terminal according to an embodiment of the present invention.

[0030] In the figure: 10, working head; 11, first operating part; 111, reset element; 112, trigger; 113, extension part; 12, first switch; 121, contact; 13, control motor; 14, trigger rod; 141, push plane; 142, pressing plate; 143, first position; 144, second position; 15, plug hole; 16, shaft; 17, plug slot; 171, "convex" groove; 172, card slot; 20, operating rod; 21, second operating part; 22, second switch; 23, ejector; 30, battery pack; 40 , plug-in terminal; 41, T-block; 411, recess; 42, elastic snap-in piece; 421, snap-in joint; 422, pressing head; 423, reset piece; 424, anti-sliding block; 43, first through-hole; 44, second through-hole; 50, electrical connection terminal assembly; 51, spring terminal; 511, connecting plate; 512, first conductive sheet; 513, second conductive sheet; 514, corner contact; 515, first bending section; 516, second bending section; 517, extension section; 518, abutment portion; 519, movable gap; 52, plug-in piece. DETAILED DESCRIPTION

[0031] The present invention will be described in more detail below in conjunction with the accompanying drawings. It should be noted that the following description of the present invention with reference to the accompanying drawings is only illustrative and not restrictive. The various embodiments can be combined with each other to form other embodiments not shown in the following description.

[0032] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See attached Figure 1 To Attachment Fig. 9 The all-in-one working tool of an embodiment of the present invention will be explained in the following description, wherein, by providing a replacement part, the working head can be used in different working environments and has more powerful functions.

[0036] As attached Figure 1 To Attachment Figure 4 As shown, all-in-one work tool, including,

[0037] An operation head 10, used for performing the operation;

[0038] The replacement part is detachably connected to the operation head 10; wherein the operation head 10 includes a first switch, a first operating part 11 and a control motor 13, and the first switch has a normally closed state connected to the control motor 13;

[0039] The replacement part can be an operating rod 20 of different lengths or types, or a battery pack 30; the working head 10 can be a gardening tool of different structures such as a pruning shear, a hedge trimmer, or a pruning machine; the working head 10 can have its own power supply or an external power supply. When an external power supply is needed, the working head 10 can be connected to the battery pack 30; if the working head 10 has its own power supply, the battery pack 30 may not be set on the operating rod 20, and the operating rod 20 only plays a control role; if there is no power supply on the working head 10, the battery pack 30 can also be set on the operating rod 20. After the working head 10 is connected to the operating rod 20, there is no need to connect another power supply, and the operating rod 20 directly operates the working head 10. The first switch can be a micro switch or other conventional push switch.

[0040] The operating rod 20 is provided with a second switch 22 and a second operating part 21; the working head 10 has a first state in which only the first operating part 11 can be used for operation and a second state in which only the second operating part 21 can be used for operation; when the working head 10 is in the second state, the operating rod 20 is connected to the working head 10 and the first switch 12 is in a normally closed state, and the second switch 22 is connected in series with the first switch 12; or, the replacement part is a battery pack 30, which is detachably connected to the working head 10, and when the battery pack 30 is connected to the working head 10, the working head 10 is in the first state. The second switch can be a micro switch or other conventional press switches.

[0041] More specifically, when the working head 10 is in the first state, the entire gardening tool has only one operating component, namely, the first operating part 11. At this time, the user generally directly holds the working head 10 to perform the operation. The first operating part 11 is linked to the first switch 12. The user presses the first operating part 11 to realize the conduction of the first switch 12 and the control motor 13, and the working head 10 works normally. At this time, the working head 10 can be connected to the battery pack 30, and the battery pack 30 serves as the power supply or backup power supply of the working head 10; when the working head 10 is in the second state, the entire gardening tool has at least two operating components, one is the first operating part 11 located on the working head 10, and the other is The second operating part 21 is located on the operating rod 20. At this time, the user generally holds the working head 10 through the operating rod 20 and cannot directly control the first operating part 11. In order to ensure safe use and avoid accidentally touching the first operating part 11 and starting the working head 10 during the holding process, the first switch 12 and the second switch 22 are set in series, and the first switch 12 is in a normally closed state, so that the first switch 12 and the control motor 13 are turned on. As long as the second switch 22 is not turned on, even if the first operating part 11 is pressed, the working head 10 will not work. The user can trigger the second switch 22 through the second operating part 21 on the operating rod 20 to turn on the circuit, and the working head 10 works normally.

[0042] In order to keep the first switch 12 in a normally closed state when the working head 10 is in the second state, an abutment structure is provided between the operating rod 20 and the working head 10, and the contact 121 of the first switch 12 is pressed by the abutment structure to keep the first switch 12 in a normally closed state. The abutment structure has various forms, for example, a block is provided on the operating rod 20, and when the operating rod 20 is connected to the working head 10, the block extends into the working head 10 to press the contact 121 of the first switch 12 to keep the first switch 12 in a normally closed state; the abutment structure may also include a trigger rod 14 linked to the first switch 12 and a top rod 23 for prying the trigger rod 14, and the trigger rod 14 has a first position 143 for touching the first switch 12 to make it in a normally closed state and a second position 144 separated from the first switch 12.

[0043] The trigger rod 14 can also serve as a trigger element when the working head 10 is in the first state. When the working head 10 is connected to the battery pack 30, there is no push rod 23, so the trigger rod 14 is in the first position 143, and the first operating part 11 is arranged in front of the contact of the first switch 12. The first operating part 11 includes an extension part 113 extending toward the trigger rod 14. The first operating part 11 pushes the trigger rod 14 through the extension part 113 to press the contact 121 of the first switch 12. At this time, the user can only turn on the first switch 12 and control the motor 13 through the first operating part 11.

[0044] When the working head 10 is connected to the operating rod 20, the operating rod 20 pries the trigger rod 14 to the second position 144 through the push rod 23, so that the first switch 12 is in a normally closed state. The push rod 23 is arranged on the end of the operating rod 20 facing the working head 10, and the trigger rod 14 is arranged inside the working head 10 to prevent accidental touch; the working head 10 is provided with a socket 15 on one side close to the operating rod 20, and the socket 15 is adapted to the push rod 23. When the operating rod 20 is connected to the working head 10, the push rod 23 is inserted into the socket 15 and pries the trigger rod 14.

[0045] More specifically, a shaft 16 is provided inside the operation head 10, and the shaft 16 is arranged on the side of the first switch 12. The trigger rod 14 is sleeved on the shaft 16, one end of which extends toward the push rod 23, and the other end of which extends toward the contact 121 of the first switch 12. The part of the trigger rod 14 sleeved on the shaft 16 is also provided with a reset torsion spring (not shown), which is used to drive the trigger rod 14 to reset from the second position 144 to the first position 143. Preferably, as shown in the attached Figure 5 As shown, in order to make it easier for the push rod 23 to push the trigger rod 14, a pushing plane 141 is provided on the end of the trigger rod 14 facing the push rod 23. At the same time, a pressing plate 142 is provided on the end of the trigger rod 14 facing the contact 121. The contact 121 is arranged downward, and the pressing plate 142 is located below the contact 121, so that when the pressing plate 142 is tilted, it will press the contact 121 to turn on the first switch 12.

[0046] There are two ways for the trigger member to rotate from the first position 143 to the second position 144. One is that the push rod 23 enters the working head 10 through the insertion hole 15 and abuts against one end of the trigger rod 14, pushing one end of the trigger rod 14 so that the other end of the trigger rod 14 is lifted up to press the contact 121 of the first switch 12. At this time, the working head 10 is in the second state; the other is that the trigger rod 14 is maintained in the first position 143, and the first operating part 11 located on the front side of the trigger rod 14 includes an extension part 113 extending toward the trigger rod 14. The first operating part 11 includes a reset element 111 and a trigger 112. The user holds the working head 10 and presses the trigger 112 by hand. The extension part 113 thereon pushes upward the end of the pressing plate 142 of the trigger rod 14, and the pressing plate 142 rises to trigger the contact 121, and the first switch 12 is turned on. At this time, the working head 10 is in the first state.

[0047] In some embodiments, in order to ensure a stable connection between the working head 10 and the replacement part, a plug-in structure is provided between the working head 10 and the replacement part, and the plug-in structure includes a plug-in slot 17 and a plug-in end 40; one of the plug-in slot 17 and the plug-in end 40 is provided on the end of the working head 10 facing the replacement part, and the other is provided on the end of the replacement part facing the working head 10. Figure 6 and attached Figure 7In the specific example shown, the plug-in slot 17 is arranged on the working head 10, the socket 15 is located above the plug-in slot 17, the first switch 12 and the trigger rod 14 are located in the working head 10 at a rearward position relative to the plug-in slot 17, so as to facilitate the pushing of the trigger rod 14 after the push rod 23 is inserted, and the plug-in end 40 is located on the battery pack 30 or the operating rod 20. It is worth noting that in actual application, the positions of the plug-in slot 17 and the plug-in end 40 can be interchanged and are not limited to the examples shown in the accompanying drawings.

[0048] More specifically, as attached Figure 6 As shown, the plug-in slot 17 includes a "convex" slot 171 and a clamping slot 172, and the clamping slot 172 is arranged on both sides of the "convex" slot 171; the plug-in end 40 includes a T-block 41 and an elastic clamping member 42, and the T-block 41 is adapted to the "convex" slot 171; the elastic clamping member 42 includes a clamping joint 421, a pressing head 422 and a reset member 423, the pressing head 422 is movably arranged on the replacement part, the reset member 423 is arranged in the replacement part and abuts against the pressing head 422 or the clamping joint 421, the clamping joint 421 is arranged at the recess 411 of the T-block 41, and is adapted to the clamping slot 172; the pressing head 422 drives the clamping joint 421 to perform telescopic movement and reset under the action of the reset member 423.

[0049] As attached Figure 8 and attached Fig. 9 The two pressing heads 422 and the clamping joint 421 are symmetrically arranged on both sides of the plug connector, respectively. The reset member 423 is a spring, which is arranged between the two pressing heads 422 and abuts against the inner sides of the two pressing heads 422. The two sides of the head of the plug connector are provided with first through holes 43 for the pressing heads 422 to pass through, and the recess 411 of the T-block 41 is provided with a second through hole 44 for the clamping joint 421 to pass through. An anti-sliding block 424 is provided on the outer surface of the pressing head 422. The clamping joint 421 is an inverted trapezoidal structure, which is adapted to the clamping slot 172. It is not easy to fall out after being clamped in, ensuring that the replacement part is stably and firmly connected to the working head 10.

[0050] In addition to the above mechanical connection, an electrical connection terminal assembly 50 is also provided between the working head 10 and the operating rod 20 or the battery pack 30. The electrical connection terminal assembly 50 includes a plug spring terminal 51 and a plug piece 52. One of the plug spring terminal 51 and the plug piece 52 is located at the end of the working head 10 facing the replacement part, and the other is located at the end of the replacement part facing the working head 10. Figure 6 and 7 In the specific example shown, the spring terminal 51 is located on the operating rod 20 or the battery pack 30, at the bottom of the plug connector, and the plug piece 52 is located on the working head 10, at the bottom of the plug slot 17. It is worth noting that in actual application, the positions of the spring terminal 51 and the plug piece 52 can be interchanged and are not limited to the examples shown in the accompanying drawings.

[0051] As attached Figure 8 and attached Fig. 9 As shown, the plug spring terminal 51 includes a connecting plate 511 and an elastic support portion, the elastic support portion is bent toward the inner side of the connecting plate 511, and a clamping space is formed on the inner side of the connecting plate 511, and the elastic support portion includes a corner contact 514 for elastically clamping the plug piece 52. More specifically, the elastic support portion includes a conductive sheet, the corner contact 514 is arranged on the conductive sheet, and the elastic support portion is bent toward the inner side of the connecting plate 511 to form a conductive sheet for clamping the plug piece 52. The elastic support portion of the plug spring terminal 51 is bent toward the inner side of the connecting plate 511, so as to clamp the plug piece 52 on the inner side of the connecting plate 511, and the reaction force of the inner wall of the connecting plate 511 is used to make the corner contact 514 more stably contact with the plug piece 52, and the service life is longer.

[0052] In some embodiments, the elastic support portion includes a first conductive sheet 512 and a second conductive sheet 513 that are bent inwardly. The first conductive sheet 512 and the second conductive sheet 513 are arranged opposite to each other and form a clamping space between the connecting plate 511. The first conductive sheet 512 and the second conductive sheet 513 both include a corner contact 514 for elastically clamping the plug-in sheet 52. The first conductive sheet 512 and the second conductive sheet 513 are respectively connected to the two sides of the connecting plate 511, and a clamping space is formed between the first conductive sheet 512 and the second conductive sheet 513 that are arranged opposite to each other. Similarly, the first conductive sheet 512 and the second conductive sheet 513 are both provided with a corner contact 514 for elastically clamping the plug-in sheet 52. In order to improve the clamping ability of the conductive sheet, the tail ends of the first conductive sheet 512 and the second conductive sheet 513 can be respectively abutted against or close to the inner wall of the connecting plate 511 to which they are connected, so that when the plug 52 is inserted between the first conductive sheet 512 and the second conductive sheet 513, the tail ends of the first conductive sheet 512 and the second conductive sheet 513 both generate a reaction force with the connecting plate 511 to avoid excessive deformation of the first conductive sheet 512 and the second conductive sheet 513 and clamp the plug 52 at the same time.

[0053] The first conductive sheet 512 and the second conductive sheet 513 both include a first bending section 515 and a second bending section 516. The corner contact 514 is located at the connection between the first bending section 515 and the second bending section 516. Since an angle is provided between the first bending section 515 and the second bending section 516, the first conductive sheet 512 and the second conductive sheet 513 both have a certain elastic deformation capability. The connecting plate 511 can be made of a material with poor deformation capability. When the insert 52 is inserted between the conductive sheet and the inner wall of the connecting plate 511, the angle between the first bending section 515 and the second bending section 516 becomes larger, and the ends of the first conductive sheet 512 and the second conductive sheet 513 are The ends are respectively close to the inner side wall of the corresponding connecting plate 511 and apply force thereto, and the connecting plate 511 provides a reaction force, so that the plug 52 stably contacts and connects with the corner contacts 514 on both sides, ensuring the stable connection between the plug spring terminal 51 and the plug 52; because the first conductive sheet 512 and the second conductive sheet 513 are located between the two sides of the connecting plate 511, the degree of deformation is limited, which reduces the deformation of the first conductive sheet 512 and the second conductive sheet 513 during long-term use, prolongs the service life of the first conductive sheet 512 and the second conductive sheet 513, and enables the first conductive sheet 512 and the second conductive sheet 513 to stably contact with the plug 52 for a long time. As shown in the drawings, the second bending section 516 also includes an extension section 517 and an abutment portion 518, the extension portion 113 extends toward the inner wall of the connecting plate 511 to which the conductive sheet is connected, and the abutment portion 518 is used to abut against the inner wall of the side to transmit the action force and reaction force. In order to facilitate the deformation of the conductive sheet, the extension section 517 extends toward the inner wall of the connecting plate 511 so that there is a movable gap 519L between the abutting portion 518 and the inner wall of the connecting plate 511. Preferably, the movable gap 519L is less than or equal to 1 / 2H, H is the thickness of the plug 52, and when the plug 52 is inserted, L disappears and the abutting portion 518 abuts against the inner wall of that side.

[0054] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An all-in-one working tool, characterized in that: include, An operation head, used for performing the operation; A replacement part, detachably connected to the working head; wherein the working head comprises a first switch, a first operating part and a control motor, and the first switch has a normally closed state connected to the control motor; The replacement part is an operating rod, and the operating rod is provided with a second switch and a second operating part; the working head has a first state in which the first operating part can be used only for operation, and a second state in which the second operating part can be used only for operation; when the working head is in the second state, the operating rod is connected to the working head and makes the first switch in a normally closed state, and the second switch is connected in series with the first switch; An abutment structure is provided between the operating rod and the working head, the abutment structure comprising a trigger rod linked to the first switch and a push rod for prying the trigger rod, the trigger rod having a first position for touching the first switch to put it in a normally closed state and a second position for separating from the first switch; The trigger rod is arranged in the working head, and the push rod is arranged on the operating rod; a socket is arranged on the side of the working head close to the operating rod, and the socket is adapted to the push rod. When the operating rod is connected to the working head, the push rod is inserted into the socket and pries the trigger rod to the first position; The first operating portion is disposed in front of the contact of the first switch, and includes an extending portion extending toward the trigger rod. The first operating portion pushes the trigger rod through the extending portion to press the contact of the first switch.

2. The all-in-one working tool according to claim 1, characterized in that: A shaft body is provided inside the operation head, and the shaft body is arranged on the side of the first switch. The trigger rod is sleeved on the shaft body, with one end extending toward the direction of the push rod and the other end extending toward the contact of the first switch; The push rod pushes one end of the trigger rod to make the other end of the trigger rod tilt up and press the contact of the first switch.

3. The all-in-one working tool according to claim 2, characterized in that: A pushing plane is provided on one end of the trigger rod facing the ejector rod; a pressing plate is provided on one end of the trigger rod facing the contact, the contact is arranged downward, and the pressing plate is located below the contact.

4. The all-in-one working tool according to claim 3, characterized in that: The first operating part includes a reset element and a trigger, the extension part is arranged on the trigger, the extension part pushes upward one end of the trigger rod where the pressing plate is located, the pressing plate rises to trigger the contact of the first switch, and the first switch is turned on.

5. The all-in-one working tool according to any one of claims 1 to 3, characterized in that: A plug-in structure is provided between the working head and the replacement part, and the plug-in structure includes a plug-in slot and a plug-in end; one of the plug-in slot and the plug-in end is arranged on an end of the working head facing the replacement part, and the other is arranged on an end of the replacement part facing the working head.

6. The all-in-one working tool according to claim 5, characterized in that: The plug-in slot includes a "convex" slot and a card slot, and the card slots are arranged on both sides of the "convex" slot; the plug-in end includes a T-block and an elastic card connector, and the T-block is adapted to the "convex" slot; the elastic card connector includes a card connector, a pressing head and a reset member, the pressing head is movably arranged on the replacement part, the reset member is arranged in the replacement part and abuts against the pressing head or the card connector, the card connector is arranged in the recess of the T-block and adapted to the card slot; the pressing head drives the card connector to perform telescopic movement and resets under the action of the reset member.

7. The all-in-one working tool according to any one of claims 1 to 3, characterized in that: An electrical connection terminal assembly is provided between the working head and the replacement part, and the electrical connection terminal assembly includes a spring terminal and a plug-in piece; one of the spring terminal and the plug-in piece is located on one end of the working head facing the replacement part, and the other is arranged on one end of the replacement part facing the working head.

8. The all-in-one working tool according to claim 7, characterized in that: The spring terminal comprises a connecting plate and an elastic supporting portion, wherein the elastic supporting portion is bent toward the inner side of the connecting plate and forms a clamping space inside the connecting plate, and the elastic supporting portion comprises a corner contact for elastically clamping the insert.

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