CN113632654B

CN113632654B - Rechargeable electric tool

Info

Publication number: CN113632654B
Application number: CN202111196333.2A
Authority: CN
Inventors: 唐水生
Original assignee: Jiangsu Shengsheng Machinery Technology Co ltd
Current assignee: Jiangsu Shengsheng Machinery Technology Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2021-12-14
Anticipated expiration: 2041-10-14
Also published as: CN113632654A

Abstract

The invention relates to the technical field of electric tools and discloses a rechargeable electric tool which comprises a shell, wherein the outer side of the shell is movably connected with a first protective cover, the outer side of the shell is movably connected with a second protective cover, the outer side of the shell is fixedly connected with a switch, the outer side of the shell is fixedly connected with a protective frame, and the outer side of the shell is movably connected with a cutter. This rechargeable electric tool is at the work, heat conduction piece through setting up, and the conducting rod that the cooperation set up, produce more heat through heat conduction piece during the use, and then promote the contact of conducting block and electric contact, make the conducting rod have the electric current process, and then promote the removal of push pedal, and then the mouth separation that will charge, when having realized charging the phenomenon that the inner wall circuit short circuit appears when electric cutting knife, avoid the temperature rise of electric cutting knife interface that charges, prevent the burning out of electric cutting knife interface that charges, prevent the emergence of conflagration, great economic loss has been avoided, the service life of electric cutting knife has been improved.

Description

Rechargeable electric tool

Technical Field

The invention belongs to the technical field of electric tools, and particularly relates to a rechargeable electric tool.

Background

Electric cutting tool divide into two kinds of hand-held type and movable, and hand-held type electric cutting tool is often used in the life, adopts rechargeable design more, and electric cutting tool passes through motor drive, and electric cutting tool's application is comparatively extensive, can be used to the manufacturing of industry production line also can be used to domestic product, and with regard to the pruning of flowers and plants trees in the flower bed, need use rechargeable electric cutting knife to continue the pruning to it, and then heighten the efficiency of pruning.

But rechargeable electric cutting knife on the existing market need charge to it after using, because the ageing of electric cutting knife internal circuit, the phenomenon of inner wall circuit short circuit can appear when electric cutting knife charges, leads to the temperature rise of the interface that electric cutting knife charges, leads to the burning out of the interface that electric cutting knife charges, leads to the emergence of conflagration, has caused great economic loss, has reduced electric cutting knife's life.

Disclosure of Invention

In view of the above situation, the present invention provides a rechargeable power tool to overcome the drawbacks of the prior art, and effectively solve the problems in the background art.

In order to realize the above-mentioned phenomenon that when the electric cutting knife charges and the inner wall circuit short circuit appears, avoid the temperature rise of the interface that the electric cutting knife charges, prevent the burning of the interface that the electric cutting knife charges, prevent the emergence of conflagration, avoided great economic loss, improved the life purpose of electric cutting knife, the invention provides the following technical scheme: the rechargeable electric tool comprises a shell, wherein a first protective cover is movably connected to the outer side of the shell, a second protective cover is movably connected to the outer side of the shell, a switch is fixedly connected to the outer side of the shell, a protective frame is fixedly connected to the outer side of the shell, a cutting knife is movably connected to the outer side of the shell, a groove is formed in the inner wall of the shell and close to the inner side of the second protective cover, a conductive coil is fixedly connected to the inner wall of the groove, and a leather bag is fixedly connected to the inner wall of the groove;

a triggering mechanism is movably connected to the inner wall of the shell and the outer side close to the groove, a charging column is fixedly connected to the inner wall of the shell and the inner side close to the first protective cover, an expansion mechanism is movably connected to the inner wall of the shell and the bottom close to the charging column, and the protective mechanism is movably connected to the inner wall of the shell and the outer side close to the charging column;

the expansion mechanism comprises an expansion groove, a heat conduction block, a rubber strip, a pressing plate, a connecting rod, a conductive block and an electric contact, the expansion groove is formed in the inner wall of the shell, the heat conduction block is fixedly connected to the inner top wall of the expansion groove, the rubber strip is fixedly connected to the inner wall of the expansion groove, the pressing plate is fixedly connected to the bottom of the rubber strip, the connecting rod is fixedly connected to the bottom of the pressing plate, the conductive block is fixedly connected to the inner wall of the connecting rod, the electric contact is fixedly connected to the inner bottom wall of the expansion groove, the electric contacts are connected with an external power supply in series, the number of the electric contacts is the same as that of the conductive blocks, the conductive block is connected with the conductive rod in series, and the electric contact plays a role in switching on a circuit;

protection machanism includes magnetic sheet one, magnetic sheet two, guard bar, conducting rod and push pedal, the inner wall elastic connection of casing has the guard bar, the inner wall fixedly connected with of guard bar the conducting rod, the top fixedly connected with of guard bar the push pedal, the inner wall of casing just is close to the outside fixedly connected with of guard bar magnetic sheet one, the inner wall of casing just is close to the outside fixedly connected with of guard bar magnetic sheet two.

Preferably, the leather bag is made of rubber, the inner side of the leather bag is filled with the current variant, the number of the conductive coils is twice that of the leather bag, the conductive coils are symmetrically distributed on the inner side of the groove, and the leather bag plays a role in wrapping.

Preferably, trigger mechanism includes the spread groove, leads electrical pillar, slide and contact point, the inner wall of casing has been seted up the spread groove, the inner wall fixedly connected with of spread groove lead electrical pillar, the inner wall elastic connection of spread groove has the slide, the inboard fixedly connected with of slide the contact point.

Preferably, the conductive column is connected in series with an external power supply, the size of the conductive column is adapted to the size of the contact point, the contact point is connected in series with the conductive coil, and the conductive column plays a role in connecting a circuit.

Preferably, the material of slide is the rubber material, the slide with the inner wall of spread groove is closely laminated, the slide has played gliding effect.

Preferably, the shape and size of the first magnetic plate and the second magnetic plate are the same, the magnetism of the opposite surfaces of the first magnetic plate and the second magnetic plate is opposite, and the first magnetic plate and the second magnetic plate play a role in forming a magnetic field.

Preferably, the inner side of the rubber strip is filled with gas, the pressing plate is tightly attached to the inner wall of the expansion tank, the pressing plate is made of rubber, and the rubber strip plays a role in sealing.

Compared with the prior art, the invention has the beneficial effects that:

1) in operation, through the heat conduction piece that sets up, and the conducting rod that the cooperation set up, produce more heat through the heat conduction piece during use, and then promote the contact of conducting block and electric contact, make the conducting rod have the electric current process, and then promote the removal of push pedal, and then the interface separation that will charge, when having realized charging the phenomenon that the inner wall circuit short circuit appears when electric cutting knife, avoid the temperature rise of electric cutting knife interface that charges, prevent the burning out of electric cutting knife interface that charges, prevent the emergence of conflagration, great economic loss has been avoided, the service life of electric cutting knife has been improved.

2) The conducting rod is arranged, the magnetic plate I and the magnetic plate II are arranged in a matched mode, a magnetic field formed between the magnetic plate I and the magnetic plate II is used, the conducting rod is under the action of ampere force, the ampere force is judged according to the left-hand rule, the left hand is stretched out to enable the magnetic induction line to penetrate through the palm center, the four fingers point to the direction of current, the thumb is in the direction of the ampere force, recycling of resources is achieved, and the automation degree is improved.

3) The electrorheological fluid through setting to and the cooperation sets up and leads electrical pillar and contact point, the contact through leading electrical pillar and contact point during the use for the electrorheological fluid takes place the change of form, based on the characteristic of electrorheological fluid, when applyiing the electric field, the electrorheological fluid has the liquid to become the solid, and when removing the electric field, the electrorheological fluid can be recovered to initial liquid by the solid, has realized the used circulation of resource, energy-concerving and environment-protective.

4) The circuit variant through setting up to and the cooperation sets up trigger mechanism, through trigger mechanism's electric shock during the use, make the current variant become the solid, the electric cutting knife of being convenient for is fixed with the extension rod, labour saving and time saving, convenient and fast has improved the degree of automation that the extension rod is connected, has avoided extension rod and electric cutting knife to produce great space when being connected.

5) Through the protection of preventing the balladeur train during use, avoided touching of cutting knife and staff's hand, improved the factor of safety that electric cutting knife used, through swing joint's protective cover one and protective cover two, realized the protection to post and the leather bag of charging, avoided the post that charges to receive external pollution, prevented that the leather bag from receiving the damage, improved electric cutting knife's life.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of a protective frame according to the present invention;

FIG. 3 is a schematic view of a first embodiment of a protective cover of the present invention;

FIG. 4 is a schematic cross-sectional view of the housing of the present invention;

FIG. 5 is a schematic view of the structure at A in FIG. 5 according to the present invention;

FIG. 6 is a schematic cross-sectional view of a charging column according to the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 at B according to the present invention;

FIG. 8 is a schematic view of the structure of FIG. 6 at point C according to the present invention.

In the figure: 1. a housing; 2. a first protective cover; 3. a second protective cover; 4. a switch; 5. a protective frame; 6. a cutting knife; 7. a groove; 8. a skin pocket; 9. a trigger mechanism; 10. a conductive coil; 11. a charging post; 12. a protection mechanism; 13. an expansion mechanism; 91. connecting grooves; 92. a conductive post; 93. a slide plate; 94. a contact point; 121. a first magnetic plate; 122. a second magnetic plate; 123. a guard bar; 124. a conductive rod; 125. pushing the plate; 131. an expansion tank; 132. a heat conducting block; 133. a rubber strip; 134. pressing a plate; 135. a connecting rod; 136. a conductive block; 137. an electrical contact.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a first embodiment, as shown in fig. 1 to 8, the rechargeable electric tool comprises a housing 1, wherein a first protective cover 2 is movably connected to the outer side of the housing 1, a second protective cover 3 is movably connected to the outer side of the housing 1, a switch 4 is fixedly connected to the outer side of the housing 1, a protective frame 5 is fixedly connected to the outer side of the housing 1, a cutting knife 6 is movably connected to the outer side of the housing 1, a groove 7 is formed in the inner wall of the housing 1 and close to the second protective cover 3, a conductive coil 10 is fixedly connected to the inner wall of the groove 7, a leather bag 8 is fixedly connected to the inner wall of the groove 7, the leather bag 8 is made of rubber, an electrorheological body is filled in the inner side of the leather bag 8, the number of the conductive coils 10 is twice that of the leather bags 8, the conductive coils 10 are symmetrically distributed in the inner side of the groove 7, and the leather bag 8 plays a role of wrapping;

the inner wall of the shell 1 and the outer side close to the groove 7 are movably connected with a trigger mechanism 9, the trigger mechanism 9 comprises a connecting groove 91, a conductive column 92, a sliding plate 93 and a contact point 94, the connecting groove 91 is formed in the inner wall of the shell 1, the conductive column 92 is fixedly connected with the inner wall of the connecting groove 91, the conductive column 92 is connected with an external power supply in series, the size of the conductive column 92 is matched with that of the contact point 94, the contact point 94 is connected with a conductive coil 10 in series, the conductive column 92 plays a role in switching on a circuit, the sliding plate 93 is elastically connected with the inner wall of the connecting groove 91, the sliding plate 93 is made of rubber materials, the sliding plate 93 is tightly attached to the inner wall of the connecting groove 91, the sliding plate 93 plays a sliding role, and the contact point 94 is fixedly connected with the inner side of the sliding plate 93;

the inner wall of the shell 1 and the inner side close to the first protective cover 2 are fixedly connected with a charging column 11, the inner wall of the shell 1 and the bottom close to the charging column 11 are movably connected with an expansion mechanism 13, and the inner wall of the shell 1 and the outer side close to the charging column 11 are movably connected with a protective mechanism 12;

the expansion mechanism 13 comprises an expansion groove 131, a heat-conducting block 132 and a rubber strip 133, pressing plate 134, connecting rod 135, conducting block 136 and electric contact 137, expansion tank 131 has been seted up to the inner wall of casing 1, the interior roof fixedly connected with heat conduction block 132 of expansion tank 131, the inner wall fixedly connected with rubber strip 133 of expansion tank 131, the inboard packing of rubber strip 133 has gas, pressing plate 134 closely laminates with the inner wall of expansion tank 131, the material of pressing plate 134 is the rubber material, rubber strip 133 has played sealed effect, the bottom fixedly connected with pressing plate 134 of rubber strip 133, the bottom fixedly connected with connecting rod 135 of pressing plate 134, the inner wall fixedly connected with conducting block 136 of connecting rod 135, the inner bottom wall fixedly connected with electric contact 137 of expansion tank 131, electric contact 137 and external power supply are established ties, the quantity of electric contact 137 is the same with the quantity of conducting block 136, conducting block 136 and conducting rod 124 are established ties, electric contact 137 has played the effect of putting through the circuit.

In the second embodiment, as shown in fig. 1 to 8, the rechargeable electric tool comprises a housing 1, wherein a first protective cover 2 is movably connected to the outer side of the housing 1, a second protective cover 3 is movably connected to the outer side of the housing 1, a switch 4 is fixedly connected to the outer side of the housing 1, a protective frame 5 is fixedly connected to the outer side of the housing 1, a cutting knife 6 is movably connected to the outer side of the housing 1, a groove 7 is formed in the inner wall of the housing 1 and close to the inner side of the second protective cover 3, a conductive coil 10 is fixedly connected to the inner wall of the groove 7, a leather bag 8 is fixedly connected to the inner wall of the groove 7, the leather bag 8 is made of rubber, an electrorheological body is filled in the inner side of the leather bag 8, the number of the conductive coils 10 is twice that of the leather bag 8, the conductive coils 10 are symmetrically distributed on the inner side of the groove 7, and the leather bag 8 plays a role of wrapping;

the expansion mechanism 13 comprises an expansion groove 131, a heat-conducting block 132 and a rubber strip 133, the inner wall of the shell 1 is provided with an expansion groove 131, the inner top wall of the expansion groove 131 is fixedly connected with a heat conduction block 132, the inner wall of the expansion groove 131 is fixedly connected with a rubber strip 133, the inner side of the rubber strip 133 is filled with gas, the pressure plate 134 is tightly attached to the inner wall of the expansion groove 131, the pressure plate 134 is made of rubber, the rubber strip 133 plays a sealing role, the bottom of the rubber strip 133 is fixedly connected with the pressure plate 134, the bottom of the pressure plate 134 is fixedly connected with a connecting rod 135, the inner wall of the connecting rod 135 is fixedly connected with a conductive block 136, the inner bottom wall of the expansion groove 131 is fixedly connected with an electric contact 137, the electric contact 137 is connected with an external power supply in series, the number of the electric contacts 137 is the same as that of the conductive blocks 136, the conductive block 136 is connected with the conductive rod 124 in series, and the electric contact 137 plays a role of connecting a circuit;

the protection mechanism 12 comprises a first magnetic plate 121, a second magnetic plate 122, a protection rod 123, a conductive rod 124 and a push plate 125, the inner wall of the shell 1 is elastically connected with the protection rod 123, the inner wall of the protection rod 123 is fixedly connected with the conductive rod 124, the top of the protection rod 123 is fixedly connected with the push plate 125, the inner wall of the shell 1 is close to the first magnetic plate 121 on the outer side of the protection rod 123, the first magnetic plate 121 and the second magnetic plate 122 are identical in shape and size, the first magnetic plate 121 and the second magnetic plate 122 are opposite in magnetism of the opposite surface, the first magnetic plate 121 and the second magnetic plate 122 play a role in forming a magnetic field, and the inner wall of the shell 1 is close to the second magnetic plate 122 fixedly connected with the outer side of the protection rod 123.

The working principle is as follows: when the electric cutting knife works, firstly, a worker holds the shell 1 by hand, then the switch 4 is turned on, so that the cutting knife 6 rotates, and then the cutting of the flowers and the plants of the trees is completed, and at the moment, under the protection action of the protection frame 5, the hands of the worker cannot be injured by the rotation of the cutting knife 6;

after the electric cutting knife is used for a long time, the electric quantity in the electric cutting knife can be consumed completely, the electric cutting knife is charged therewith, the first protective cover 2 is firstly opened to expose the charging post 11, a power charging wire is inserted into the inner side of the charging post 11 to start charging, when the internal circuit of the electric cutting knife is aged, the internal circuit of the electric cutting knife can be caused to be short-circuited, the temperature of the charging post 11 is increased, the temperature of the heat conducting block 132 in the expansion mechanism 13 is high, the pressure inside the rubber strip 133 is increased, the rubber strip 133 is expanded, the pressure plate 134 is pushed to slide downwards along the inner wall of the expansion groove 131, the connecting rod 135 is pushed to move downwards, the conductive block 136 is adapted to the size of the electric contact 137, finally, under the expansion effect of the rubber strip 133, the conductive block 136 is clamped with the electric contact 137, and the conductive rod 124 connected with the conductive block 136 in series in the protection mechanism 12 can have current passing through, meanwhile, under the action of a magnetic field formed by the first magnetic plate 121 and the second magnetic plate 122, the conducting rod 124 is acted by ampere force, the ampere force is determined according to the left-hand rule, the left hand is extended out to enable the magnetic induction line to penetrate through the palm center, the four fingers point to the direction of current, and the thumb is the direction of the ampere force, so that the direction of the ampere force borne by the conducting rod 124 is determined to be vertical and upward, the protective rod 123 is further driven to move upwards, the push plate 125 is further pushed to move outwards, the charging head inserted in the outer side of the charging column 11 is further pushed out, excessive heat generated by the charging column 11 is avoided, the burning of an inner wall circuit of the electric cutting knife is prevented, and the service life of the electric cutting knife is prolonged;

meanwhile, when the electric cutter prunes the branches of flowers and plants at higher positions, the protective cover II 3 is opened, the extension rod is inserted along the inner wall of the groove 7, at the moment, the extension rod can extrude the leather bag 8, the leather bag 8 is deformed, at the moment, the electrorheological fluid inside the leather bag 8 is squeezed, the electrorheological fluid enters the inside of the connecting groove 91 in the trigger mechanism 9, and the sliding plate 93 is pushed to move along the connecting groove 91, so that the sliding plate 93 drives the contact point 94 to move towards the conductive post 92, so that the conductive post 92 contacts with the contact point 94, and then the conductive coil 10 connected in series with the contact point 94 will have current flowing through, at this time, the current inside the leather bag 8 will change from the initial liquid state to the solid state under the action of the electric stimulation, and then fix inserting the extension rod, labour saving and time saving, convenient and fast has improved the degree of automation that the extension rod is connected, has avoided the extension rod to produce great space when being connected with electronic cutting knife.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Rechargeable electric tool, including casing (1), its characterized in that: the outer side of the shell (1) is movably connected with a first protective cover (2), the outer side of the shell (1) is movably connected with a second protective cover (3), the outer side of the shell (1) is fixedly connected with a switch (4), the outer side of the shell (1) is fixedly connected with a protective frame (5), the outer side of the shell (1) is movably connected with a cutting knife (6), a groove (7) is formed in the inner wall of the shell (1) and close to the inner side of the second protective cover (3), a conductive coil (10) is fixedly connected to the inner wall of the groove (7), and a leather bag (8) is fixedly connected to the inner wall of the groove (7);

a trigger mechanism (9) is movably connected to the inner wall of the shell (1) and the outer side close to the groove (7), a charging column (11) is fixedly connected to the inner wall of the shell (1) and the inner side close to the first protective cover (2), an expansion mechanism (13) is movably connected to the inner wall of the shell (1) and the bottom close to the charging column (11), and a protection mechanism (12) is movably connected to the inner wall of the shell (1) and the outer side close to the charging column (11);

the expansion mechanism (13) comprises an expansion groove (131), a heat conducting block (132), a rubber strip (133), a pressing plate (134), a connecting rod (135), a conductive block (136) and an electric contact (137), wherein the expansion groove (131) is formed in the inner wall of the shell (1), the inner top wall of the expansion groove (131) is fixedly connected with the heat conducting block (132), the inner wall of the expansion groove (131) is fixedly connected with the rubber strip (133), the bottom of the rubber strip (133) is fixedly connected with the pressing plate (134), the bottom of the pressing plate (134) is fixedly connected with the connecting rod (135), the inner wall of the connecting rod (135) is fixedly connected with the conductive block (136), the inner bottom wall of the expansion groove (131) is fixedly connected with the electric contact (137), the electric contact (137) is connected with an external power supply in series, and the number of the electric contacts (137) is the same as that of the conductive block (136), the conductive block (136) is connected in series with the conductive rod (124);

protection machanism (12) are including magnetic sheet one (121), magnetic sheet two (122), guard bar (123), conducting rod (124) and push pedal (125), the inner wall elastic connection of casing (1) has guard bar (123), the inner wall fixedly connected with of guard bar (123) conducting rod (124), the top fixedly connected with of guard bar (123) push pedal (125), the inner wall of casing (1) just is close to the outside fixedly connected with of guard bar (123) magnetic sheet one (121), the inner wall of casing (1) just is close to the outside fixedly connected with of guard bar (123) magnetic sheet two (122).

2. The rechargeable power tool according to claim 1, wherein: the leather bag (8) is made of rubber, the inner side of the leather bag (8) is filled with current variants, the number of the conductive coils (10) is twice that of the leather bag (8), and the conductive coils (10) are symmetrically distributed on the inner side of the groove (7).

3. The rechargeable power tool according to claim 1, wherein: trigger mechanism (9) are including connecting groove (91), lead electrical pillar (92), slide (93) and contact point (94), the inner wall of casing (1) has been seted up connecting groove (91), the inner wall fixedly connected with of connecting groove (91) lead electrical pillar (92), the inner wall elastic connection of connecting groove (91) has slide (93), the inboard fixedly connected with of slide (93) contact point (94).

4. The rechargeable power tool according to claim 3, wherein: the conductive column (92) is connected with an external power supply in series, the size of the conductive column (92) is matched with that of the contact point (94), and the contact point (94) is connected with the conductive coil (10) in series.

5. The rechargeable power tool according to claim 3, wherein: the material of slide (93) is the rubber material, slide (93) with the inner wall of spread groove (91) closely laminates.

6. The rechargeable power tool according to claim 1, wherein: the shape and the size of the first magnetic plate (121) are the same as those of the second magnetic plate (122), and the magnetism of the opposite surface of the first magnetic plate (121) is opposite to that of the second magnetic plate (122).

7. The rechargeable power tool according to claim 1, wherein: the inner side of the rubber strip (133) is filled with gas, the pressing plate (134) is tightly attached to the inner wall of the expansion groove (131), and the pressing plate (134) is made of rubber.