CN105862641B - Gardening electric tool with power-off delay protection function - Google Patents
Gardening electric tool with power-off delay protection function Download PDFInfo
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- CN105862641B CN105862641B CN201610428511.2A CN201610428511A CN105862641B CN 105862641 B CN105862641 B CN 105862641B CN 201610428511 A CN201610428511 A CN 201610428511A CN 105862641 B CN105862641 B CN 105862641B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
- A01G20/40—Apparatus for cleaning the lawn or grass surface
- A01G20/43—Apparatus for cleaning the lawn or grass surface for sweeping, collecting or disintegrating lawn debris
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a gardening electric tool with a power-off delay protection function, which comprises a main structure and accessories, wherein an impeller, a motor and a power supply loop are arranged in the main structure of the tool, and the tool is characterized in that: a connecting mechanism comprising a delay controller is arranged between the accessory and the shell, and when the power supply loop is cut off, the connecting mechanism is controlled by the delay controller to delay the loosening between the accessory and the shell. The time delay of the connecting mechanism is protection time, and the accessories can be detached only after the impeller is completely stopped, so that potential safety hazards are fundamentally eliminated; secondly, a detection mechanism is arranged between the accessory and the shell, and open circuit protection can be realized by detecting the butt joint state between the accessory and the shell; in addition, the invention adopts a double-locking structure, so that the connection between the accessory and the shell is more reliable and stable.
Description
Technical Field
The invention relates to a gardening electric tool commonly used in occasions such as gardens, families and the like, in particular to a gardening electric tool with a power-off delay protection function, which belongs to 'equipment for cleaning or washing grasslands or other surfaces' in the international patent classification chart, and has the classification number of E01H 1/08.
Background
The gardening electric tool is equipment for cleaning grassland or other surfaces, and comprises a blowing and sucking machine, a single blowing machine and the like, wherein the blowing and sucking machine mainly comprises a motor, an impeller, a machine shell, an air inlet filter screen, an air nozzle and other components, and the machine shell is at least provided with one port for connecting an air blowing pipe and/or an air suction pipe. The blowing pipe is used for blowing, and high-speed airflow blown from the blowing pipe blows fallen leaves and other objects scattered on the ground to gather and pile, so that the dust blowing function of the gardening electric tool is realized; the suction pipe is used for sucking air, the impeller rotates at a high speed, the formed air flow sucked into the machine shell together with the ground fallen leaves and dust and scraps enters the dust collecting device through the treatment of the impeller, and the dust collecting function of the gardening electric tool is realized.
Generally, horticulture electric tool in the use or after using, can carry out the dismantlement of blowing pipe, collection bag or aspiration channel, traditional dismantlement structure is comparatively simple and easy, and it is short to dismantle the separation time, when blowing pipe, collection bag or aspiration channel are dismantled and are accomplished, still are in the rotation state, because the distance of each port and position is nearer, therefore has the potential safety hazard.
Chinese patent No. CN204419639U provides a blowing and sucking machine, in which a blade set is disposed on one side of a blade unit close to an air inlet, and the blade set and the blade unit rotate synchronously to shred objects entering from the air inlet. Conceivably, when the fan blade unit is still not stopped after the air suction pipe is disassembled, the fan blade unit has great threat to operators, and is easy to cause serious accidents.
Chinese patent No. CN204000715U discloses another blowing and sucking machine, wherein a locking portion is disposed on a scroll casing, a fixing member for fixing the scroll casing on a blowing pipe is pivoted on the blowing pipe, one end of the fixing member has a locking portion coupled with the locking portion, the other end of the fixing member is provided with an elastic biasing member for controlling a locking/unlocking state between the locking portion and the locking portion, when the blowing and sucking machine is disassembled, the locking portion and the locking portion can be released by pressing the elastic biasing member, and then the blowing pipe is disassembled from the scroll casing. The structure of this mounting can realize the quick dismantlement of blowpipe, and its dismantlement time is less than the stall time of fan blade far away, also has the potential safety hazard.
In order to eliminate the potential safety hazard, chinese patent publication No. 103156548A provides a blowing and sucking machine, which includes a main machine housing, a blowing and sucking accessory detachably connected to the main machine housing, a motor located in the main machine housing, a fan driven to rotate by the motor, a switching device controlling the rotation of the motor, and a control mechanism for triggering the switching device, and is characterized in that a brake mechanism is provided in the main machine housing, and when the blowing and sucking accessory is separated from the main machine housing, the brake mechanism is operable to control the fan to stop rotating. This brake mechanism is mechanical type brake structure, and the structure is complicated relatively, has certain wearing and tearing to the fan blade, influences the life of suction machine, and in addition, brake mechanism's operation is irregular, can't carry out effective control to it.
The chinese patent with the publication number CN203729235U provides another leaf blowing and sucking machine with a brake system, which comprises a main circuit and a brake circuit, wherein the main circuit is connected in series with a power supply, a main switch, a safety switch and a motor, the brake circuit is connected in series with the safety switch and the motor, and when a protective cover or an air pipe is taken down, the brake circuit is switched on. The technical effects are as follows: when the protective cover is opened or the air pipe is detached from the machine body, the safety switch is connected with the brake loop, the stator and the rotor prevent the inertial motion of the stator and the rotor and the fan blade along the original motion direction due to the reverse electromotive force in the brake loop, so that the brake effect is achieved, the fan blade is stopped in a short time, and the personal safety is protected. However, the scheme can only reduce the accident rate, and cannot fundamentally eliminate the potential safety hazard: when the air pipe is detached from the machine body, the brake loop is started to work, a certain response time period is provided after the air pipe is detached and before the fan blades stop rotating, and a larger potential safety hazard still exists in the response time period; moreover, the scheme realizes the prevention of the movement through the back electromotive force, and causes unnecessary energy consumption.
In summary, when the conventional gardening electric tool such as a blowing and sucking machine is structurally disassembled in a power failure condition during or after use, the safety protection measures for disassembly still have great defects, and further research and development are needed to fundamentally eliminate the potential safety hazard in the aspect.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a gardening electric tool with a power-off delay protection function, and aims to fundamentally solve the potential safety hazard of the conventional gardening electric tool when accessories are detached.
The technical solution of the invention is as follows: horticulture electric tool with outage time delay protect function, including the casing with can dismantle the annex of connecting in the casing, the inside power supply loop who is equipped with impeller, drive impeller moving motor and supplies power for the motor of casing, characterized by: and a connecting mechanism for fixedly connecting or loosening the accessory and the shell is arranged between the accessory and the shell, the connecting mechanism comprises a delay controller, and after the power supply loop is powered off, the connecting mechanism is controlled by the delay controller, so that the loosening and delaying between the accessory and the shell are realized.
Further, the gardening electric tool with the power-off delay protection function comprises: a detection mechanism for detecting the butt joint state of the accessory and the shell and controlling the power supply loop to be disconnected or connected according to the butt joint state is further arranged between the accessory and the shell, and when the accessory is separated from the shell, the detection mechanism controls the power supply loop to be disconnected; when the accessory is connected with the shell, the detection mechanism controls the conduction of the power supply loop.
Further, the gardening electric tool with the power-off delay protection function comprises: the annex has dress portion of connecing, the casing include with the port that dress portion of connecing links to each other, coupling mechanism including set up in connect the link in the portion of connecing and set up in time delay controller in the port, time delay controller contains time delay components and parts and locking piece, the locking piece is driven in time delay components and parts to it is fixed or pine takes off the link.
Preferably, the gardening electric tool with power-off time-delay protection function comprises: the locking piece is flexible plunger, have the hole groove that supplies flexible plunger to pass on the link.
Further, the gardening electric tool with the power-off delay protection function comprises: and a manual locking mechanism is arranged between the port and the assembling and connecting part.
Furthermore, the gardening electric tool with power-off delay protection function comprises: the manual locking mechanism comprises a first positioning hole arranged on the port, a second positioning hole arranged on the assembling and connecting part and a locking piece, when the assembling and connecting part is connected to the port, the first positioning hole and the second positioning hole are overlapped, and the locking piece is embedded into the first positioning hole and the second positioning hole at the same time, so that the assembling and connecting part and the port are relatively fixed.
Still further, the above-mentioned horticulture electric tool with outage time delay protect function, wherein: the locking piece is an elastic key, one end of the elastic key is connected to the inside of the port in a pivot mode, and an elastic piece used for driving the elastic key to rotate along the free end is arranged on the inner side of the elastic key.
Still further, the above-mentioned horticulture electric tool with outage time delay protect function, wherein: a detection mechanism for detecting the butt joint state of the port and the assembling and connecting part and controlling the power supply loop to be disconnected or connected according to the butt joint state is arranged between the port and the assembling and connecting part, and when the accessory is separated from the shell, the detection mechanism controls the power supply loop to be disconnected; when the accessory is connected with the shell, the detection mechanism controls the conduction of the power supply loop.
Still further, the above-mentioned horticulture electric tool with outage time delay protect function, wherein: the detection mechanism is a first micro-control switch which is connected in series in the power supply loop, the first micro-control switch is arranged in the port, the first micro-control switch is provided with a first contact which faces the assembling part, when the port is connected with the assembling part, the assembling part is abutted against the first contact, and the first micro-control switch is turned on; when the port is separated from the assembling and connecting part, the assembling and connecting part is separated from the first contact, and the first micro-control switch is closed.
Preferably, the gardening electric tool with power-off time-delay protection function comprises: an elastic push rod is arranged in the port, when the port is connected with the mounting part, the mounting part drives the elastic push rod to abut against the first contact, and the first micro-control switch is turned on; when the port is separated from the assembling and connecting part, the assembling and connecting part is separated from the elastic push rod, the elastic push rod is separated from the first contact, and the first micro-control switch is closed.
Another solution is that, the aforementioned gardening electric tool with power-off delay protection function, wherein: the manual locking mechanism comprises a hook part arranged on the mounting part and a lock catch part arranged on the port, and when the mounting part is connected into the port, the lock catch part is locked with the hook part, so that the mounting part and the port are relatively fixed.
Further, the gardening electric tool with the power-off delay protection function comprises: the lock catch part comprises a wrench and a lock catch ring, the wrench is connected to the port through a pivot, the lock catch ring is connected to the wrench through the pivot, the lock catch ring is sleeved on the hook part in a state that the lock catch part and the hook part are locked relatively, and the wrench rotates to a position where the lock catch ring, the wrench and the hook part are fixed relatively.
Furthermore, the gardening electric tool with power-off delay protection function comprises: the lock catch part comprises a lock catch ring, the lock catch ring is connected to the port through an elastic body, and the lock catch ring and the hook part are locked relatively.
Still further, the above-mentioned horticulture electric tool with outage time delay protect function, wherein: the detection mechanism is a second micro-control switch connected in series in the power supply loop, the second micro-control switch is arranged in the port, and the second micro-control switch is provided with a second contact arranged on the inner side of the hook part; when the hook part is locked with the lock catch part, the lock catch part is abutted with a second contact on the inner side of the hook part, and the second micro-control switch is turned on; when the hook part is separated from the lock catch part, the lock catch part is separated from the second contact point on the inner side of the hook part, and the second micro-control switch is closed.
It can be seen from the above technical solutions that the present invention has many outstanding substantial technical features, and after implementing the technical solution of the present invention, the significant technical progress thereof is mainly reflected in:
(1) the connecting mechanism between the accessory and the shell of the gardening electric tool has a time delay function, the extended time is protection time, and the accessory can be disassembled only when the impeller is completely disassembled after power failure, so that potential safety hazards in the disassembling process are fundamentally eliminated;
(2) according to the gardening electric tool, the detection mechanism is arranged between the accessory and the shell, and the disconnection protection is realized by detecting the butt joint state between the accessory and the shell, so that the protection function is further improved;
(3) the accessory and the shell of the gardening electric tool adopt a double-locking structure, so that the accessory and the shell are more reliable and stable in connection.
Drawings
FIG. 1 is a schematic view of the present invention showing the connection of the shell to the blower pipe and the suction pipe shroud;
FIG. 2 is a schematic view of the connection between the housing and the dust bag and the suction pipe;
FIG. 3 is a perspective schematic view of the present invention;
FIG. 4 is a schematic cross-sectional structural view of the present invention;
FIG. 5 is an enlarged view of the structure of the area A in FIG. 3;
fig. 6 is an enlarged schematic view of the structure of the region B in fig. 3.
The meanings of the reference symbols in the figures are as follows:
1-a shell; 11-port; 2-an accessory; 21-attaching part; 3-an impeller; 4-a motor; 5-a connection mechanism; 51-connection end 51; 6-a delay controller; 61-a delay element; 62-a locking element; 7-a detection mechanism; 71-a first micro-control switch; 72-a first contact; 73-a second micro-switch; 74-a second contact; 8-manual locking mechanism; 81-a first locating hole; 82-a second positioning hole; 83-a lock; 84-a resilient member; 85-hook part; 86-a locking part; 861-spanner; 862-locking ring; 9-elastic push rod.
Detailed Description
The following detailed description of the present invention will be provided in conjunction with the accompanying drawings to facilitate the understanding and appreciation of the technical aspects of the present invention.
The invention provides a gardening electric tool with a power-off delay protection function, and the related subject 'gardening electric tool' refers to electric tools such as a blowing and sucking machine, a single suction machine, a single blowing machine and the like, in particular to a gardening electric tool with detachable accessories, a blade wheel close to the detachable position and potential safety hazards after detachment. As shown in fig. 1 to 6, the structure includes: the dust collecting device comprises a shell 1 and an accessory 2 detachably connected to the shell 1, wherein the accessory 2 at least comprises a blowing pipe, a dust collecting bag, an air suction pipe and an air suction pipe cover, and an impeller 3, a motor 4 for driving the impeller 3 to operate and a power supply loop for supplying power to the motor 4 are arranged in the shell 1. When the electric tool works, the motor 4 drives the impeller 3 to rotate to generate unidirectional high-speed airflow, so that the blowing and air suction functions of the gardening electric tool are realized.
According to the technical scheme of the invention, a connecting mechanism 5 for fixing or loosening the accessory 2 and the shell 1 is arranged between the accessory 2 and the shell 1, wherein the accessory 2 is provided with an attaching part 21, and the shell 1 comprises a connecting partThe connecting part 21 is connected with the port 11, and the connecting mechanism 5 is positioned between the connecting part 21 and the port 11. As shown in fig. 3 and 4, the connection mechanism 5 includes a delay controller 6, when the power supply circuit is broken, the delay controller 6 controls the connection mechanism 5 to delay the release between the accessory 2 and the housing 1, and after the power supply circuit is broken, the impeller 3 will rotate from high-speed inertia to complete stop, during which the impeller 3 has a critical low-speed rotation state that is harmless or slightly harmful to human body. The release delay time between the accessory 2 and the shell 1 is at least the time when the impeller rotates to the critical low-speed rotation state from inertia after power failure. Specifically, when the gardening electric tool is powered off, the impeller 3 will continue to rotate due to inertia, and the time from power off to the critical low-speed rotation of the impeller is assumed to be T1After shutdown, the delay controller 6 controls the release delay time between the accessory 2 and the shell 1 to be T2Time delay T2≥T1Therefore, the safety of the disassembly process is guaranteed. In the preferred embodiment, the delay time is the time after the power is removed from the impeller 3 to stop due to inertia. Therefore, the impeller 3 can be in a stop state when the accessory 2 is loosened from the shell 1, and potential safety hazards in the disassembling process are effectively eliminated.
As an optimized scheme, a detection mechanism 7 for detecting the butt joint state of the accessory 2 and the shell 1 and controlling the power supply circuit to be disconnected or conducted according to the butt joint state is further arranged between the accessory 2 and the shell 1, and when the accessory 2 is separated from the shell 1, the detection mechanism 7 controls the power supply circuit to be disconnected; when the accessory 2 is connected with the shell 1, the detection mechanism 7 controls the conduction of the power supply loop. Like this, can realize the control to supply circuit through detection mechanism 7, realize then that the butt joint state through annex 2 and casing 1 is to supply circuit's control, only when annex 2 and casing 1 butt joint target in place, horticulture electric tool just can normally work, and the unable normal operating of horticulture electric tool when not connecting annex 2 has further improved the security performance that horticulture electric tool used.
Aiming at the technical scheme, the specific implementation mode is as follows: the connecting mechanism 5 comprises a connecting end 51 arranged on the assembling and connecting part 21 and a delay controller 6 arranged in the port 11, the delay controller 6 comprises a delay element 61 and a locking piece 62, and the locking piece 62 is driven by the delay element 61 so as to fix or release the connecting end 51. As shown in detail in fig. 5. Preferably, the locking member 62 is a telescopic plunger and the connecting end 51 is a tongue or nose having a slot therein through which the telescopic plunger passes. The abutting fixing and releasing between the assembling part 21 and the port 11 are realized through the matching separation between the telescopic plunger piston and the hole groove of the connecting end 51. In addition, the delay component 61 includes a delay capacitor and/or an air damper, and it is understood that the use of the delay capacitor and the air damper is only an example, and is not a limitation to the technical solution of the present invention, and it is within the protection scope of the present invention to use other delay components capable of achieving the delay effect.
As shown in fig. 3 to 5, the above embodiment can be further optimized, that is: a manual lock mechanism 8 is provided between the port 11 and the attachment portion 21, and double lock fixation between the port 11 and the attachment portion 21 is achieved by the manual lock mechanism 8 and the connection mechanism 5.
Specifically, the manual lock mechanism 8 includes a first positioning hole 81 provided on the port 11, a second positioning hole 82 provided on the attachment portion 21, and a lock member 83, the first positioning hole 81 and the second positioning hole 82 overlap each other when the attachment portion 21 is attached to the port 11, and the lock member 83 is simultaneously fitted into the first positioning hole 81 and the second positioning hole 82, so that the attachment portion 21 and the port 11 are relatively fixed. The locking member 83 is fitted into the first positioning hole 81 and the second positioning hole 82 at the same time, and the attaching portion 21 and the port 11 are fixed relative to each other. Thereby, the locking operation of the attachment portion 21 and the port 11 is achieved by the relative locking of the three of the first positioning hole 81, the second positioning hole 82, and the lock member 83.
Preferably, the locking member 83 is a resilient button, one end of which is pivotally connected to the inside of the port 11, and the inner side of the resilient button is provided with a resilient member 84 for driving the resilient button to rotate along the free end. The locking connection or release between the attachment portion 21 and the port 11 is achieved by the pivotal movement of the resilient button. The scheme has a simple structure and is very convenient and fast to operate.
As shown in fig. 3 to 5, the above embodiment can be further optimized, that is: a detection mechanism 7 for detecting the butt joint state of the port 11 and the mounting part 21 and controlling the power supply circuit to be disconnected or conducted according to the butt joint state is arranged between the port 11 and the mounting part, and when the accessory 2 is separated from the shell 1, the detection mechanism 7 controls the power supply circuit to be disconnected; when the accessory 2 is connected with the shell 1, the detection mechanism 7 controls the conduction of the power supply loop.
Specifically, the detection mechanism 7 is a first micro-control switch 71 connected in series in the power supply circuit, the first micro-control switch 71 is disposed inside the port 11, and the first micro-control switch 71 has a first contact 72 facing the attachment portion 21, when the port 11 is connected to the attachment portion 21, the attachment portion 21 is in contact with the first contact 72, and the first micro-control switch 71 is turned on; when the port 11 is separated from the attachment portion 21, the attachment portion 21 is separated from the first contact 72 and the first micro switch 71 is turned off. Therefore, the control of the power supply loop can be realized through the first micro-control switch 71, only when the assembling and connecting part 21 is in butt joint with the port 11, the gardening electric tool can normally work, and the gardening electric tool cannot normally run when the accessory 2 is not connected, so that the use safety performance of the gardening electric tool is further improved.
Preferably, the port 11 has an elastic push rod 9 therein, which is an extension mechanism for realizing the butt joint of the first micro-control switch 71 and the attachment part, and the elastic push rod enables the installation position of the first micro-control switch 71 to be free. When the port 11 is connected with the mounting part 21, the mounting part 21 drives the elastic push rod 9 to abut against the first contact 72, and the first micro-control switch 71 is turned on; when the port 11 is separated from the attachment part 21, the attachment part 21 is separated from the elastic push rod 9, the elastic push rod 9 is separated from the first contact 72, and the first micro-control switch 71 is turned off.
Another embodiment of the manual lock mechanism 8 in the embodiment, as shown in fig. 3 and 6, double lock fixation between the port 11 and the attachment portion 21 is achieved by the manual lock mechanism 8 and the connection mechanism 5. The manual locking mechanism 8 includes a hook portion 85 provided on the attachment portion 21 and a locking portion 86 provided on the port 11, and when the attachment portion 21 is attached to the port 11, the locking portion 86 is locked with the hook portion 85, so that the attachment portion 21 and the port 11 are relatively fixed.
One structure of the manual lock mechanism 8 is: the locking part 86 comprises a wrench 861 pivotally connected to the port 11 and a locking ring 862 pivotally connected to the wrench 861, wherein in a relatively locked state of the locking part 86 and the hook 85, the locking ring 862 is sleeved on the hook 85, and the wrench 861 rotates to a position where the locking ring 862, the wrench 861 and the hook 85 are relatively fixed. When in operation, the lock catch ring is sleeved on the hook part, and the spanner pivot moves and presses down to ensure that the lock catch ring and the hook part are locked with each other; when the wrench needs to be loosened, the wrench pivot is moved and lifted, the lock catch ring is loosened from the hook part, and the lock catch ring pivot is moved to be separated from the hook part. Another structure of the manual lock mechanism 8 is: the locking portion 86 includes a locking ring 862, the locking ring 862 is connected to the port 11 by an elastic body, and the locking ring 862 is locked to the hook portion 85. The socket joint or separation of the latch ring and the hook part is realized through the extension and the stretching of the elastic body, and the locking between the port 11 and the mounting part 21 is realized by the elastic restoring force of the elastic body during the socket joint.
As shown in fig. 3, 4 and 6, the detection mechanism 7 is a second micro-switch 73 connected in series in the power supply circuit, the second micro-switch 73 is disposed inside the port 11, and the second micro-switch 73 has a second contact 74 disposed inside the hook portion 85; when the hook portion 85 is locked with the locking portion 86, the locking portion 86 abuts against the second contact 74 on the inner side of the hook portion 85, and the second micro-control switch 73 is turned on; when the hook portion 85 is disengaged from the locking portion 86, the locking portion 86 is separated from the second contact 74 inside the hook portion 85, and the second micro switch 73 is turned off. Therefore, the control of the power supply loop is realized through the second micro-control switch 73, only when the assembling and connecting part 21 is in butt joint with the port 11, the gardening electric tool can normally work, and the gardening electric tool cannot normally run when the accessory is not connected, so that the use safety performance of the gardening electric tool is further improved.
Through the above description, it can be found that the invention discloses a gardening electric tool with power-off time-delay protection function, the connecting mechanism between the accessory and the shell has the time-delay function, the extended time is the protection time, the accessory can be detached only after the impeller completely stops, and the potential safety hazard is fundamentally eliminated; secondly, a detection mechanism is arranged between the accessory and the shell, and open circuit protection can be realized by detecting the butt joint state between the accessory and the shell; in addition, the technical scheme of the invention adopts a double-locking structure, so that the connection between the accessory and the shell is more reliable and stable.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications, equivalent arrangements, and equivalents within the spirit and scope of the appended claims.
Claims (9)
1. Horticulture electric tool with outage time delay protect function, including casing (1) and can dismantle annex (2) of connecting in casing (1), casing (1) inside is equipped with impeller (3), drive impeller (3) moving motor (4) and for the power supply circuit of motor (4) power supply, its characterized in that: a connecting mechanism (5) for fixedly connecting or loosening the accessory (2) and the shell (1) is arranged between the accessory (2) and the shell (1), the connecting mechanism (5) comprises a delay controller (6), and after the power supply loop is powered off, the delay controller (6) controls the connecting mechanism (5) to delay loosening between the accessory (2) and the shell (1); the accessory (2) is provided with an assembling part (21), the shell (1) comprises a port (11) connected with the assembling part (21), and a manual locking mechanism (8) is arranged between the port (11) and the assembling part (21); the connecting mechanism (5) comprises a connecting end (51) arranged on the assembling and connecting part (21) and a delay controller (6) arranged in the port (11), the delay controller (6) comprises a delay element (61) and a locking piece (62), and the locking piece (62) is driven by the delay element (61) so as to fix or release the connecting end (51); the delay element (61) is a delay capacitance element and/or an air damping element, the locking key (62) is a telescopic plunger, and a hole slot for the telescopic plunger to pass through is formed in the connecting end (51).
2. A horticultural electric power tool with power-off delay protection function as claimed in claim 1, characterized in that: the manual locking mechanism (8) comprises a first positioning hole (81) arranged on the port (11), a second positioning hole (82) arranged on the assembling part (21) and a locking piece (83), when the assembling part (21) is connected to the port (11), the first positioning hole (81) and the second positioning hole (82) are overlapped, and the locking piece (83) is simultaneously embedded into the first positioning hole (81) and the second positioning hole (82), so that the assembling part (21) and the port (11) are relatively fixed.
3. A horticultural electric power tool with power-off delay protection function as claimed in claim 2, characterized in that: the locking piece (83) is an elastic key, one end of the elastic key is connected to the inside of the port (11) in a pivot mode, and an elastic piece (84) used for driving the elastic key to rotate along the free end is arranged on the inner side of the elastic key.
4. A horticultural electric power tool with power-off delay protection function as claimed in claim 2, characterized in that: a detection mechanism (7) for detecting the butt joint state of the port (11) and the assembling part (21) and controlling the power supply loop to be disconnected or connected according to the butt joint state is arranged between the port (11) and the assembling part (21), the detection mechanism (7) is a first micro-control switch (71) connected in series in the power supply loop, the first micro-control switch (71) is arranged inside the port (11), the first micro-control switch (71) is provided with a first contact (72) facing the assembling part (21), when the port (11) is connected with the assembling part (21), the assembling part (21) is abutted to the first contact (72), and the first micro-control switch (71) is turned on; when the port (11) is separated from the assembling part (21), the assembling part (21) is separated from the first contact (72), and the first micro-control switch (71) is closed.
5. A horticultural electric tool with power-off delay protection function as claimed in claim 4, characterized in that: an elastic push rod (9) is arranged in the port (11), when the port (11) is connected with the assembling part (21), the assembling part (21) drives the elastic push rod (9) to abut against the first contact (72), and the first micro-control switch (71) is turned on; when the port (11) is separated from the assembling and connecting part (21), the assembling and connecting part (21) is separated from the elastic push rod (9), the elastic push rod (9) is separated from the first contact (72), and the first micro-control switch (71) is closed.
6. A horticultural electric power tool with power-off delay protection function as claimed in claim 1, characterized in that: the manual locking mechanism (8) comprises a hook part (85) arranged on the assembling part (21) and a locking part (86) arranged on the port (11), and when the assembling part (21) is connected into the port (11), the locking part (86) is locked with the hook part (85) so that the assembling part (21) and the port (11) are relatively fixed.
7. A horticultural electric tool with power-off delay protection function as claimed in claim 6, characterized in that: the lock catch part (86) comprises a wrench (861) which is pivotally connected to the port (11) and a lock catch ring (862) which is pivotally connected to the wrench (861), the lock catch ring (862) is sleeved on the hook part (85) under the relative locking state of the lock catch part (86) and the hook part (85), and the wrench (861) rotates to a position where the lock catch ring (862), the wrench (861) and the hook part (85) are relatively fixed.
8. A horticultural electric tool with power-off delay protection function as claimed in claim 7, characterized in that: the latch ring (862) is connected to the port (11) through an elastic body, and the latch ring (862) is locked with respect to the hook portion (85).
9. A horticultural electric tool with power-off delay protection function as claimed in claim 6, characterized in that: a detection mechanism (7) for detecting the butt joint state of the port (11) and the assembling part (21) and controlling the power supply loop to be disconnected or connected according to the butt joint state is arranged between the port (11) and the assembling part, the detection mechanism (7) is a second micro-control switch (73) connected in series in the power supply loop, the second micro-control switch (73) is arranged in the port (11), and the second micro-control switch (73) is provided with a second contact (74) arranged on the inner side of the hook part (85); when the hook part (85) is locked with the locking part (86), the locking part (86) is abutted against a second contact (74) on the inner side of the hook part (85), the second micro-control switch (73) is turned on, when the hook part (85) is separated from the locking part (86), the locking part (86) is separated from the second contact (74) on the inner side of the hook part (85), and the second micro-control switch (73) is turned off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428511.2A CN105862641B (en) | 2016-06-16 | 2016-06-16 | Gardening electric tool with power-off delay protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610428511.2A CN105862641B (en) | 2016-06-16 | 2016-06-16 | Gardening electric tool with power-off delay protection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105862641A CN105862641A (en) | 2016-08-17 |
| CN105862641B true CN105862641B (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610428511.2A Active CN105862641B (en) | 2016-06-16 | 2016-06-16 | Gardening electric tool with power-off delay protection function |
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| Country | Link |
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| CN (1) | CN105862641B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240345B (en) * | 2016-12-23 | 2024-02-20 | 苏州宝时得电动工具有限公司 | Electric tool |
| CN108239952A (en) * | 2016-12-26 | 2018-07-03 | 天佑电器（苏州）有限公司 | The electric tool of protection structure is dismantled with delay |
| CN109898452A (en) * | 2017-12-11 | 2019-06-18 | 苏州宝时得电动工具有限公司 | Blower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103156548B (en) * | 2011-12-13 | 2015-08-19 | 苏州宝时得电动工具有限公司 | Blower |
| CN203354389U (en) * | 2013-05-10 | 2013-12-25 | 浙江绍兴苏泊尔生活电器有限公司 | Food preparation machine with lid opening time delay function |
| WO2015143719A1 (en) * | 2014-03-28 | 2015-10-01 | Techtronic Outdoor Products Technology Limited | Power tool with delay mechanism |
| CN205804248U (en) * | 2016-06-16 | 2016-12-14 | 天佑电器（苏州）有限公司 | There is the gardening electric tool of power cut off delay defencive function |
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