CN111436292A - An all-in-one work tool - Google Patents

Abstract

The invention discloses an all-in-one working tool, comprising: a working head, used for working; a replacement part, which is detachably connected with the working head; wherein, the working head includes a first switch, a first operating part and a control motor; The 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 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 a In the second state, the operating rod is connected to the working head and the first switch is in a normally closed state, and the second switch is connected in series with the first switch; When connected to the work head, the work head is in the first state. The advantage is that the working tool of the present invention includes a replacement part, which can cope with different working environments, and at the same time ensures that only one operation part can be used during operation, so as to avoid the hidden danger of misoperation.

Description

An all-in-one work tool

technical field

The invention relates to the technical field of garden machinery and equipment, in particular to an all-in-one working tool.

Background technique

With economic development, people's awareness of environmental protection has increased, and the area of landscaping has increased year by year. Garden machinery and equipment are necessary tools for landscaping projects. The commonly used manual tools in the past have been eliminated due to their laboriousness, high strength and low efficiency. Tools are becoming more and more popular. There are many types of electric work tools. Usually, a rechargeable battery is used as the power source, and the micro switch is triggered by the double safety switch to start the motor to perform the operation. Due to the particularity of the garden operation environment, sometimes shorter operation handles are required, and sometimes longer operation handles are required, such as trimming high branches, mowing lawns, etc. The existing garden operation tools generally use fixed-length handles. Single, unable to meet the requirements of various operating scenarios.

SUMMARY OF THE INVENTION

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an all-in-one working tool, which has 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, so as to avoid the hidden danger of misoperation .

The purpose of the present invention adopts following technical scheme to realize:

An all-in-one work tool that includes,

The job head is used to carry out the job;

a replacement part, which is detachably connected to the working head; wherein the working head includes a first switch, a first operating part and a control motor, and the first switch has a normally closed state that is connected to the control motor;

The replacement part is an operation lever, and the operation lever is provided with a second switch and a second operation part; the working head has a first state in which only the first operation part can be operated and only the second operation can be used a second state of partial operation; when the working head is in the second state, the operating lever is connected to the working head and the first switch is in a normally closed state, and the second switch is connected to the first switches in series; or,

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.

Preferably, an abutting structure is provided between the operating rod and the working head, and the abutting structure includes a trigger rod linked with the first switch and a top rod for prying the trigger rod, the trigger rod The lever has a first position that triggers the first switch to be in a normally closed state and a second position that is separated from the first switch, and the operating lever prys the trigger lever to the second position through the top rod .

Preferably, the trigger rod is arranged in the working head, and the ejector rod is arranged on the operating rod; a side of the working head close to the operating rod is provided with an insertion hole, and the insertion hole is connected with the operation rod. The top rod is adapted, and when the operating rod is connected with the working head, the top rod is inserted into the socket and prys the trigger rod.

Preferably, a shaft body is provided on the inner side of the working head, the shaft body is arranged on the side of the first switch, the trigger rod is sleeved on the shaft body, one end extends toward the ejector rod, and the other One end extends toward the contact of the first switch; the push rod pushes one end of the trigger rod to lift the other end of the trigger rod to press the contact of the first switch.

Preferably, an end of the trigger rod facing the ejector rod is provided with a pushing plane; an end of the trigger rod facing the contact is provided with a pressing plate, the contact is arranged downward, and the pressing plate below the contacts.

Preferably, the first operation part is disposed in front of the contact of the first switch, the first operation part includes an extension part extending toward the trigger lever, and the first operation part passes through the extension part The trigger lever is pushed to press the contacts of the first switch.

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 groove and the plug-in end is provided On the end of the working head facing the replacement part, the other is provided on the end of the replacement part facing the working head.

Preferably, the insertion slot includes a "convex" slot and a snap slot, and the snap slot is provided on both sides of the "convex" slot; the insertion end includes a T-shaped block and an elastic snap connection , the T-shaped block is adapted to the "convex"-shaped groove; the elastic clamping piece includes a clamping joint, a pressing head and a reset piece, the pressing head is movably arranged on the replacement part, and the reset The replacement part is arranged in the replacement part and abuts against the pressing head or the card joint, and the card joint is arranged in the depression of the T-block and fits with the card slot; the pressing head drives the The snap joint performs telescopic motion and is reset under the action of the reset element.

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 blade; one of the spring terminal and the blade is located at One end of the working head facing the replacement part is provided on one end of the replacement part facing the working head.

Preferably, the spring-loaded terminal includes a connecting plate and an elastic supporting portion, the elastic supporting portion is bent toward the inner side of the connecting plate, and a clamping space is formed inside the connecting plate, and the elastic supporting portion includes a Corner contacts for elastic clamping of tabs.

Compared with the prior art, the beneficial effects of the present invention are:

The present invention includes a variety of replacement parts, such as operating rods or battery packs of different lengths, and the user can select a suitable length of operating rod or directly install the battery pack for operation according to the working environment; and when the operating head is directly installed with the battery pack, the user can only It can be used through the first operation part; when the operation head is connected with the operation lever, the user can only drive the operation head through the second operation part on the operation lever. On, and the first switch is connected in series with the second switch, when the second switch is on, the first operating part cannot control the working head, the user can control the on-off of the second switch through the second operating part, so as to control the work head, it is safer to use.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention when a working head is connected to an operating rod;

FIG. 2 is a schematic structural diagram of the working head connected to the battery pack according to the embodiment of the present invention;

3 is a schematic cross-sectional view of the working head and the operating rod according to the embodiment of the present invention;

Fig. 4 is the enlarged view of A place in Fig. 3;

5 is a schematic structural diagram of a trigger lever according to an embodiment of the present invention;

6 is a schematic structural diagram of a working head according to an embodiment of the present invention;

7 is a schematic structural diagram of a plug terminal according to an embodiment of the present invention;

8 is a schematic cross-sectional structural diagram of a plug-in terminal according to an embodiment of the present invention;

FIG. 9 is a schematic cross-sectional structural diagram of another state of the plug terminal according to the embodiment of the present invention.

In the figure: 10, working head; 11, first operation part; 111, reset element; 112, trigger; 113, extension part; 12, first switch; 121, contact; 13, control motor; 14, trigger lever; 141, push plane; 142, press plate; 143, first position; 144, second position; 15, jack; 16, shaft body; 17, insertion slot; 171, "convex" slot; 172, card slot; 20, operating lever; 21, second operating part; 22, second switch; 23, ejector rod; 30, battery pack; 40, plug end; 41, T-block; 411, depression; 42, elasticity 421, clip joint; 422, pressing head; 423, reset piece; 424, anti-skid block; 43, first through hole; 44, second through hole; 50, electrical connection terminal assembly; 51, spring terminal; 511 512, the first conductive sheet; 513, the second conductive sheet; 514, the corner contact; 515, the first bending section; 516, the second bending section; 517, the extension section; ; 519, activity clearance; 52, insert.

Detailed ways

The present invention will be described in more detail below with reference to 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 may be combined with each other to form other embodiments not shown in the following description.

In the description of the present invention, it should be noted that, for orientation words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" ” etc. indicating the orientation and positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or a specific orientation. The structure and operation should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Thus, the definition of "first" and "second" features may expressly or implicitly include one or more of the features, and in the description of the present invention, "several" means two or more, unless otherwise There are clear and specific restrictions.

In the present invention, unless otherwise expressly specified and limited, the terms "assembled", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated It can be connected to the ground; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two components can be connected internally. 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 situations.

Referring to Fig. 1 to Fig. 9, the all-in-one working tool of the embodiment of the present invention will be clarified in the following description, wherein, by setting the replacement part, the working head can be used in different working environments, and the function is more powerful .

As shown in Figures 1 to 4, the all-in-one work tool includes,

The working head 10 is used for working;

The replacement part is detachably connected to the working head 10; wherein the working 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 that is connected to the control motor 13;

The replacement part can be an operating rod 20 of different lengths or types, and can also be a battery pack 30; the working head 10 can be gardening tools with different structures such as pruning shears, hedge trimmers, and pruning machines; the working head 10 can have its own power supply, Or an external power supply. When an external power supply is required, the working head 10 can be connected to the battery pack 30; There is no power supply on the operating rod 20, and a battery pack 30 can also be provided on the operating rod 20. After the operating head 10 is connected to the operating rod 20, there is no need to connect another power supply, and the operating rod 20 can directly operate the operating head 10. The first switch may be a micro switch or other conventional push switch.

The operating lever 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 operated and a second state in which only the second operating part 21 can be used; When the 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; The working head 10 is detachably connected. When the battery pack 30 is connected to the working head 10 , the working head 10 is in the first state. The second switch may be a micro switch or other conventional push switch.

More specifically, when the working head 10 is in the first state, the entire gardening tool has only one operating part, namely the first operating part 11 . Linked with the first switch 12, the user presses the first operation part 11 to realize the conduction between 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 with 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 whole gardening tool has at least two operating parts, one is the first operating part 11 located on the working head 10, and the other is the operating lever 20 At this time, the user generally holds the working head 10 through the operation lever 20, and cannot directly control the first operation part 11. In order to ensure the safety of use, it is avoided to accidentally touch the first operation part 11 during the holding process to start the operation. In the working head 10, 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 it is pressed to The first operation part 11 does not make the working head 10 work. The user can trigger the second switch 22 through the second operation part 21 on the operation lever 20 to turn on the circuit, and the working head 10 works normally.

In order to keep the first switch 12 in a normally closed state when the working head 10 is in the second state, an abutting 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 abutting structure, so that the The first switch 12 maintains a normally closed state. The abutting structure has various forms. For example, the operating rod 20 is provided with a block. When the operating rod 20 is connected to the working head 10, the blocking block extends into the working head 10 and presses the contact 121 of the first switch 12. The first switch 12 is kept in a normally closed state; the abutting structure may also include a trigger rod 14 linked with the first switch 12 and a top rod 23 for prying the trigger rod 14, and the trigger rod 14 has the function of triggering the first switch 12 to make it in a normally closed state. A first position 143 of the closed state and a second position 144 of being separated from the first switch 12 .

The trigger rod 14 can also be used 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 ejector rod 23, so the trigger rod 14 is at the first position 143, and the first operating part 11 is arranged in front of the contact point of the first switch 12, the first operation part 11 includes an extension part 113 extending toward the trigger lever 14, and the first operation part 11 pushes the trigger lever 14 through the extension part 113 to press the contact of the first switch 12. Head 121. At this time, the user can only turn on the first switch 12 and control the motor 13 through the first operation part 11 .

When the working head 10 is connected with the operating rod 20, the operating rod 20 uses the ejector rod 23 to pry the trigger rod 14 to the second position 144, so that the first switch 12 is in a normally closed state. The ejector rod 23 is arranged on the end of the operation rod 20 facing the working head 10, and the trigger rod 14 is arranged in the working head 10 to prevent accidental contact; Matching with the ejector rod 23 , when the operating rod 20 is connected with the working head 10 , the ejector rod 23 is inserted into the insertion hole 15 and prys the trigger rod 14 .

More specifically, the inner side of the working head 10 is provided with a shaft body 16, the shaft body 16 is arranged on the side of the first switch 12, the trigger rod 14 is sleeved on the shaft body 16, one end extends toward the ejector rod 23, and the other end faces the first switch 12. The contact 121 of a switch 12 is extended, and the part of the trigger rod 14 sleeved on the shaft body 16 is also provided with a reset torsion spring (not shown) for driving the trigger rod 14 to reset from the second position 144 to the first position 143 . Preferably, as shown in FIG. 5 , in order to make the ejector rod 23 push the trigger rod 14 more easily, a pushing plane 141 is provided on the end of the trigger rod 14 facing the ejector rod 23 , and at the same time, the trigger rod 14 faces the contact One end of the 121 is provided with a pressing plate 142 , and the contact 121 is disposed downward. The pressing plate 142 is located below the contact 121 . When the pressing plate 142 is lifted, it will press the contact 121 and turn on the first switch 12 .

There are two ways for the trigger to rotate from the first position 143 to the second position 144. One is that the ejector rod 23 enters the working head 10 through the insertion hole 15 and abuts one end of the trigger rod 14 to push one end of the trigger rod 14. The other end of the trigger lever 14 is lifted up and pressed against 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 lever 14 is kept at the first position 143 , which is located in front of the trigger lever 14 . The first operation part 11 on the side includes an extension part 113 extending toward the trigger lever 14, the first operation 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 on the 113 pushes up the end of the trigger lever 14 where the pressing plate 142 is located, the pressing plate 142 rises to the trigger contact 121, the first switch 12 is turned on, and at this time, the working head 10 is in the first state.

In some embodiments, in order to ensure the stable connection between the working head 10 and the replacement part, a plug-in structure is provided between the work head 10 and the replacement part, and the plug-in structure includes a plug-in slot 17 and a plug-in end 40; the plug-in groove 17 and One of the plug ends 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 . In the specific example shown in FIG. 6 and FIG. 7 , the insertion slot 17 is provided on the working head 10 , the insertion hole 15 is located above the insertion slot 17 , and the first switch 12 and the trigger lever 14 are located on the working head 10 . The inner position relative to the insertion slot 17 is convenient for pushing the trigger rod 14 after the ejector rod 23 is inserted, and the insertion end 40 is located on the battery pack 30 or the operating rod 20. It is worth noting that in practical application, the insertion slot The positions of 17 and plug end 40 may be interchanged and are not limited by the examples shown in the drawings.

More specifically, as shown in FIG. 6 , the plug-in slot 17 includes a “convex” groove 171 and a card groove 172 , and the card groove 172 is provided on both sides of the “convex” groove 171 ; the plug-in end 40 includes a T The type block 41 and the elastic clip 42, the T-shaped block 41 is adapted to the "convex" groove 171; the elastic clip 42 includes a clip joint 421, a pressing head 422 and a reset piece 423, and the pressing head 422 is movably arranged in the replacement On the upper part, the reset part 423 is arranged in the replacement part, and is in contact with the pressing head 422 or the card joint 421, and the card joint 421 is arranged in the recess 411 of the T-block 41, and is matched with the card slot 172; the pressing head 422 drives the card joint 421 performs telescopic movement and is reset under the action of the reset member 423 .

As shown in FIG. 8 and FIG. 9 , the two pressing heads 422 and the card joints 421 are symmetrically arranged on both sides of the plug connector, respectively, and the reset member 423 is a spring, which is arranged between the two pressing heads 422 and is connected with the two pressing heads. The inner sides of the 422 abut each other, the first through holes 43 for the pressing head 422 to pass through are provided on both sides of the head of the plug connector, and the second through holes 44 for the card joint 421 to pass through are formed in the recess 411 of the T-block 41 . An anti-slip block 424 is provided on the outer surface of the pressing head 422 . The clip joint 421 is an inverted trapezoid structure, which is matched with the clip slot 172 , and is not easy to come out after clipping, so as to ensure the connection between the replacement part and the working head 10 is stable and firm.

In addition to the above-mentioned 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 spring terminal 51 and a blade 52; the spring terminal 51 and the blade 52 One of them is located 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 . In the specific example shown in FIGS. 6 and 7 , the spring terminal 51 is located on the operating lever 20 or the battery pack 30 , at the bottom of the plug connector, and the plug 52 is located on the working head 10 , at the bottom of the socket 17 . It is worth noting that, in practical application, the positions of the spring terminal 51 and the blade 52 can be interchanged, which is not limited by the examples shown in the accompanying drawings.

As shown in FIG. 8 and FIG. 9 , the spring terminal 51 includes a connecting plate 511 and an elastic supporting portion. The elastic supporting portion is bent toward the inner side of the connecting plate 511, and a clamping space is formed inside the connecting plate 511. The elastic supporting portion Corner contacts 514 are included for elastic clamping of the tab 52 . More specifically, the elastic support portion includes a conductive sheet, the corner contacts 514 are disposed 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 holding the insert sheet 52 . The elastic support portion of the spring terminal 51 is bent toward the inner side of the connecting plate 511 , so as to clamp the insert 52 inside the connecting plate 511 , and use the reaction force of the inner wall of the connecting plate 511 to make the corner contact 514 and the insert 52 . The contact is more stable and the service life is longer.

In some embodiments, the elastic support portion includes a first conductive sheet 512 and a second conductive sheet 513 that are bent inwards, the first conductive sheet 512 and the second conductive sheet 513 are disposed opposite to each other, and form a clip between the connecting plates 511 The first conductive sheet 512 and the second conductive sheet 513 both include corner contacts 514 for elastically clamping the insertion sheet 52 . The first conductive sheet 512 and the second conductive sheet 513 are respectively connected to both sides of the connecting plate 511, and a clamping space is formed between the oppositely arranged first conductive sheet 512 and the second conductive sheet 513. Similarly, the first conductive sheet 512 Corner contacts 514 for elastically clamping the inserts 52 are provided on both the second conductive sheet 513 and the second conductive sheet 513 . In order to improve the holding capacity 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 the first conductive sheet 512 is inserted into the plug 52 . When it is 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, so as to avoid excessive deformation of the first conductive sheet 512 and the second conductive sheet 513, and at the same time clamp the Tightly insert tab 52.

Both the first conductive sheet 512 and the second conductive sheet 513 include a first bending section 515 and a second bending section 516, and the corner contact 514 is located at the connection between the first bending section 515 and the second bending section 516, because There is an angle between the first bending section 515 and the second bending section 516, so that the first conductive sheet 512 and the second conductive sheet 513 have a certain elastic deformation ability. 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 first conductive sheet 512 and the second conductive sheet The ends of the pieces 513 are respectively close to the inner side walls of the corresponding connecting plates 511, and exert force on them. The connecting plates 511 provide a reaction force, so that the inserts 52 are stably contacted and connected with the corner contacts 514 on both sides, so as to ensure that the spring terminals 51 are connected with each other. Stable connection of the plug 52; since 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, reducing the long-term use of the first conductive sheet 512 and the second conductive sheet 513. The deformation during use prolongs the service life of the first conductive sheet 512 and the second conductive sheet 513, so that the first conductive sheet 512 and the second conductive sheet 513 can be in stable contact with the insert 52 for a long time. As shown in the drawings, the second bending section 516 further includes an extension section 517 and an abutting portion 518. The extension portion 113 extends toward the inner wall of the side of the connecting plate 511 to which the conductive sheet is connected, and the abutting portion 518 is used for connecting with this side. The inner wall abuts and transmits the action and reaction forces. 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, and H is the insertion The thickness of the sheet 52, when the insertion sheet 52 is inserted, the L disappears, and the abutting portion 518 abuts the inner wall of the side.

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 insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of the present invention. Scope of protection claimed.

Claims (10)

1. An all-in-one work tool, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a work head for performing work;

a replacement part detachably connected to the work head; the working head comprises a first switch, a first operating part and a control motor, wherein the first switch is in a normally closed state communicated with the control motor;

the replacing part is an operating rod, and a second switch and a second operating part are arranged on the operating rod; the work head has a first state operable only by the first operating portion and a second state operable only by the second operating portion; when the working head is in a second state, the operating rod is connected with the working head and enables the first switch to be in a normally closed state, and the second switch is connected with the first switch in series; or,

the replacement part is a battery pack, the battery pack is detachably connected with the operation head, and when the battery pack is connected with the operation head, the operation head is in a first state.

2. The all-in-one work tool according to claim 1, wherein: the operating rod with be equipped with the butt structure between the operation head, the butt structure include with the trigger bar of first switch linkage and the pry the ejector pin of trigger bar, the trigger bar have touch first switch makes its first position in normal close state and with the second position of first switch separation, the operating rod passes through the ejector pin pry trigger bar to the second position.

3. The all-in-one work tool according to claim 2, wherein: the trigger rod is arranged in the operation head, and the ejector rod is arranged on the operating rod; the operation head is close one side of action bars is equipped with the jack, the jack with ejector pin looks adaptation, the action bars with when the operation head is connected, the ejector pin inserts in the jack and prizes the trigger lever.

4. The all-in-one work tool according to claim 3, wherein: a shaft body is arranged on the inner side of the operation head, the shaft body is arranged on the side edge of the first switch, the trigger rod is sleeved on the shaft body, one end of the trigger rod extends towards the direction of the ejector rod, and the other end of the trigger rod extends towards a contact of the first switch; the ejector rod pushes one end of the trigger rod to enable the other end of the trigger rod to be tilted to press the contact of the first switch.

5. The all-in-one work tool according to claim 4, wherein: a pushing plane is arranged on one end of the trigger rod facing the ejector rod; the trigger bar is towards one of contact is served and is equipped with the pressure board, the contact sets up down, the pressure board is located the below of contact.

6. The all-in-one work tool according to claim 4 or 5, wherein: the first operation portion is provided in front of a contact of the first switch, the first operation portion includes an extension portion extending toward the trigger lever, and the first operation portion pushes the trigger lever through the extension portion to press a contact of the first switch.

7. The all-in-one work tool according to any one of claims 1 to 5, wherein: an inserting structure is arranged between the operation head and the replacing part, and comprises an inserting groove and an inserting end; one of the insertion groove and the insertion end is provided at an end of the working head facing the replacement part, and the other is provided at an end of the replacement part facing the working head.

8. The all-in-one work tool according to claim 7, wherein: the insertion groove comprises a convex-shaped groove and a clamping groove, and the clamping groove is formed in two side edges of the convex-shaped groove; the inserting end comprises a T-shaped block and an elastic clamping piece, and the T-shaped block is matched with the convex groove; the elastic clamping piece comprises a clamping head, a pressing head and a resetting piece, the pressing head is movably arranged on the replacing part, the resetting piece is arranged in the replacing part and abuts against the pressing head or the clamping head, and the clamping head is arranged at the concave part of the T-shaped block and is matched with the clamping groove; the pressing head drives the clamping head to do telescopic motion and reset under the action of the resetting piece.

9. The all-in-one work tool according to any one of claims 1 to 5, wherein: an electric connection terminal assembly is arranged between the operation head and the replacing part, and comprises an inserting spring terminal and an inserting piece; one of the inserting spring terminal and the inserting sheet is positioned at one end of the operation head facing the replacing part, and the other is arranged at one end of the replacing part facing the operation head.

10. The all-in-one work tool according to claim 9, wherein: insert the spring terminal and include connecting plate and elasticity supporting part, the elasticity supporting part orientation the inboard bending of connecting plate, and the inboard centre gripping space that forms of connecting plate, the elasticity supporting part is including being used for forming the corner contact of elasticity centre gripping to the inserted sheet.

Images