CN108239952B - Electric tool with delay disassembly protection structure - Google Patents
Electric tool with delay disassembly protection structure Download PDFInfo
- Publication number
- CN108239952B CN108239952B CN201611216766.9A CN201611216766A CN108239952B CN 108239952 B CN108239952 B CN 108239952B CN 201611216766 A CN201611216766 A CN 201611216766A CN 108239952 B CN108239952 B CN 108239952B
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- Prior art keywords
- delay
- locking piece
- locking
- accessory
- air outlet
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- 230000003111 delayed effect Effects 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000007664 blowing Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses an electric tool with a delay disassembly protection structure, which is characterized in that an accessory and a machine body of the electric tool at least comprise two detachable connecting parts, and the electric tool is characterized in that: one of the connecting parts is a time delay dismounting structure, and the other connecting parts are quick dismounting structures; and, delay dismantlement structure contains a detachable delay locking piece, quick dismantlement structure can only use this delay locking piece unblock, only after delay unblock of delay dismantlement structure, this delay locking piece can be dismantled to be used for carrying out the unblock to quick dismantlement structure. Therefore, the time-delay disassembly can be ensured, the safe operation of electric tools such as a blowing and sucking machine is ensured, and the disassembly or installation time of nearly half can be reduced.
Description
Technical Field
The invention relates to an electric tool commonly used in gardens, families and the like, in particular to an electric tool with a delayed disassembly protection structure, which belongs to the field of 'equipment for cleaning or cleaning grasslands or other surfaces' in the international patent classification table, and the classification number is E01H 1/08.
Background
For power tools, a secure connection between the body and the accessory is an important consideration. According to the requirements of the new standard EN50636 which needs to be executed in 2016, when the protective cover of the electric tool is opened, the moving parts in the machine body cannot be touched, so that the moving parts must be in a stop state to ensure the operation safety before the moving parts in the machine body are possibly touched by hands after the air blowing pipe or the air inlet pipe is disassembled.
In order to meet the requirements, a delay disassembly protection structure is required to be arranged at the connection part of the accessory and the machine body, and delay protection measures are required to be adopted for the connection of the accessory and the machine body no matter the mouthpiece accessory or the suction port accessory, so that when any accessory is disassembled firstly, the moving part in the machine body is in a stop state. In general, the time requirements for "delay" in the removal of the mouthpiece attachment and the mouthpiece attachment are comparable. Taking a blowing and sucking machine as an example, in the prior art, a time delay dismounting device is arranged at a connecting part between an air inlet accessory and an air inlet of a machine body and a connecting part between an air outlet accessory and an air outlet of the machine body. Typically, a screw is used to lock the accessory to the machine body (e.g., the structure described in paragraph [0042] of CN 205089666U), the removal time T 1 is adjusted by adjusting the length of the screw, and it is ensured that the hand does not touch the rotating impeller as long as T 1≥T0, assuming the time from the motor power off to the complete stop of the impeller is T 0.
However, when the above structure is used for both the air intake and the air outlet, the operation time is not less than 2T 1 for the whole blower, whether it is installed or removed. In fact, the components that are removed first (e.g., the air intake accessory) are delayed, and the components that are removed later (e.g., the air outlet accessory) are not necessarily delayed; therefore, the setting method in the prior art has high safety factor, but has low operation efficiency and high processing cost, and needs to be improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides an electric tool with a delay disassembly protection structure, and aims to improve the disassembly and assembly efficiency of the electric tool with a delay protection function on the premise of ensuring safe operation.
The technical scheme of the invention is that the electric tool with the delay disassembly protection structure comprises at least two detachable connecting parts between an accessory and a machine body, wherein one of the connecting parts is of a delay disassembly structure, and the other of the connecting parts is of a quick disassembly structure; and the delay disassembly structure comprises a separable delay locking piece, and the quick disassembly structure can only be unlocked by using the delay locking piece.
Preferably, the delay disassembly structure comprises a delay locking piece, an air inlet or outlet accessory locking part and an air inlet or outlet locking part, wherein one end of the delay locking piece is a screw rod, the other end of the delay locking piece is a first terminal, and when the accessory locking part is inserted into the air outlet locking part, the screw rod of the delay locking piece simultaneously penetrates through holes on the accessory locking part and the air inlet locking part, so that the air inlet accessory or the air outlet accessory is locked with a machine body of the electric tool; correspondingly, the quick disassembly structure comprises a quick locking piece, an air outlet or air inlet locking part and an air outlet or air inlet accessory locking part, wherein the quick locking piece comprises a locking disc and a locking column, a second terminal matched with the first terminal is arranged on the locking disc, after the time-delay locking piece is disassembled, the first terminal can be inserted into the second terminal on the locking disc, the locking disc is driven to rotate through rotating the time-delay locking piece, and then the locking column acts, so that quick disassembly between the air outlet locking part and the accessory locking part is realized.
Preferably, the screw end of the delay locking piece simultaneously passes through the accessory locking part and the hole above the air port locking part, at least one hole is internally provided with threads matched with the screw, and the time for detaching the screw from the two holes is not less than the inertia running time from power failure to stop of the impeller of the electric tool.
Preferably, the shapes of the first terminal and the second terminal are elliptical, star-shaped or irregular polygonal.
Preferably, the delay disassembly structure further comprises an electromagnet and a delay capacitor or a delay damper, and when the delay disassembly structure is locked, a lock column of the electromagnet locks the delay locking piece, an accessory lock part and an air port lock part of the electric tool at the same time; after the power is off, under the action of a delay capacitor or a delay damper, after a predetermined time delay, the electromagnet lock column is sprung open to unlock, and the delay locking piece is detachable and used for unlocking the quick-dismantling structure.
Preferably, the delay disassembly structure and the quick disassembly structure are respectively provided with a micro switch and an elastic piece, when all accessories are not installed in place, the elastic piece can sense abnormality, so that the micro switch acts, and then the power supply of the electric tool is cut off through the controller.
Preferably, the delay locking piece is flexibly connected to the electric tool through a rope or a chain.
From the above technical solutions, the present invention has a plurality of outstanding substantial technical features, and after implementing the technical solutions of the present invention, the significant technical progress is mainly:
(1) The invention endows the 'delay locking piece' with dual functions, so that the detachable structures at the two parts of the air inlet and the air outlet of the electric tool are associated, one part can be set to be a delay detachable structure, the other part can be set to be a quick detachable structure, and on the premise of ensuring safety, nearly half of the detachment and installation time is shortened, and greater comfort and convenience are brought to operators;
(2) In the implementation process, any position can be selected to adopt a 'delayed disassembly structure', any position can adopt a 'quick disassembly structure', a 'delayed' mode can adopt a plurality of modes such as a 'rotary delay' mode or a 'magnetic attraction delay' mode according to the specific form of the machine tool, and a first terminal on the delayed locking piece and a second terminal on the quick locking piece adopt special-shaped structures, so that the quick locking piece can be unlocked only by the delayed locking piece;
(3) In addition, through setting up micro-gap switch respectively at two junction parts of electric tool air inlet and air-out, can avoid the annex to be neglected loading, effectively prevented starting abnormal conditions such as impeller under the condition that not put in place with whole annex.
Drawings
FIG. 1 is a schematic view of a blower to which the present invention is applied;
FIG. 2 is an enlarged view of a portion of the "time delay release structure" of FIG. 1;
FIG. 3 is an enlarged view of a portion of the "quick release structure" of FIG. 1;
FIG. 4 is a partial cross-sectional view of the "time delay release structure" of FIG. 1;
FIG. 5 is a partial cross-sectional view of the "quick release structure" of FIG. 1;
FIG. 6 is a schematic diagram of a time delay lock;
Fig. 7 is a top view of fig. 6.
The meaning of the reference numerals in the figures is as follows:
1-organism, 2-impeller, 3-air-out annex, 4-air inlet annex, 5-time delay dismantlement structure, 51-time delay locking piece, 511-first terminal, 52-air-out annex locking part, 53-air outlet locking part, 54-first micro-gap switch, 55-connecting rod, 56-first elastic component, 57-second elastic component, 6-quick dismantlement structure, 61-locking dish, 611-second terminal, 62-second micro-gap switch, 63-third elastic component, 64-lock post, 65-hook claw, 66-blocking part, 67-air inlet annex locking part, 68-air inlet locking part, 7-connecting wire.
Detailed Description
The invention provides an electric tool with a time-delay disassembly protection structure, and relates to a subject 'electric tool' which comprises but is not limited to electric tools such as a blowing and sucking machine, a single blowing machine and the like, in particular to an electric tool with accessories capable of being disassembled, impellers close to a disassembly position and potential safety hazards after the impellers are disassembled.
The accessory and the machine body of the electric tool usually comprise at least two detachable connecting parts, and according to the technical scheme of the invention, the detaching structure of one connecting part is a delayed detaching structure, and the detaching structure of the other connecting part is a quick detaching structure; the time-delay disassembly structure comprises a separable locking piece, and the quick disassembly structure can only be unlocked by using the locking piece. Only after the delay unlocking of the delay disassembly structure, the locking piece can be disassembled from the delay disassembly structure and is used for quickly disassembling the structure. Therefore, the time-delay disassembly can be guaranteed, and the disassembly or installation time of nearly half can be reduced.
The following describes the specific embodiments of the present invention further by taking a blowing and sucking machine as an example with reference to the accompanying drawings, so that the technical scheme of the present invention is easier to understand and grasp.
As shown in fig. 1, an impeller 2 is arranged in a machine body 1 of the blowing and sucking machine, an air outlet and an air inlet are arranged on the machine body 1, and connecting parts are respectively arranged between the air outlet and an air outlet accessory 3 and between the air inlet and an air inlet accessory 4 so as to facilitate disassembly and cleaning of the accessory. Wherein, the air outlet accessory 3 mainly comprises a blowing pipe, a dust collecting bag and the like, and the air inlet accessory 4 comprises an air suction pipe, a protective cover and the like. According to the invention, for the two connecting parts of the air outlet and the air inlet, a time delay disassembly structure can be arranged at one part, a quick disassembly structure is arranged at the other part, and the two parts are mutually related through the time delay locking piece. Fig. 1 illustrates that a time delay dismounting structure 5 is arranged between an air outlet and an air outlet accessory 3, and a quick dismounting structure 6 is arranged between an air inlet and an air inlet accessory 4; as will be readily apparent to those skilled in the art, the same technical effect can be achieved by exchanging the positions of the two structures. The following description will be made with respect to two detachable structures, taking the arrangement of fig. 1 as an example.
As shown in fig. 2,4, 6 and 7, the time delay removing structure 5 mainly includes: the delay locking piece 51, the air outlet accessory locking part 52 and the air outlet locking part 53, wherein one end of the delay locking piece 51 is a screw rod, the other end of the delay locking piece is a first terminal 511, and when the air outlet accessory locking part 52 is inserted into the air outlet locking part 53, the screw rod of the delay locking piece 51 simultaneously penetrates through holes on the air outlet accessory locking part 52 and the air outlet locking part 53 to lock the air outlet accessory 3 and the machine body 1. Wherein, the hole of the air outlet accessory lock part 52 and/or the hole of the air outlet lock part 53 are provided with threads matched with the screw rod, and the time for detaching the delay locking piece 51 can be controlled by adjusting the length of the threads, so as to ensure that the air outlet accessory 3 can be detached after the impeller 2 is completely stopped.
As shown in fig. 3 and 5, the quick release structure 6 mainly includes: a quick lock, an air inlet lock 68 and an air inlet attachment lock 67. The quick locking piece comprises a locking disc 61 and a locking column 64, a second terminal 611 matched with a first terminal 511 on the delay locking piece 51 is arranged on the locking disc 61, after the delay locking piece 51 is detached, the first terminal 511 can be inserted into the second terminal 611 on the locking disc 61, the locking disc 61 is driven to rotate by rotating the delay locking piece 51, and quick detachment of the air inlet accessory 4 is achieved.
Specifically, the air inlet lock portion 68 is a slot with a through hole near a side wall of the lock post 64, the air inlet accessory lock portion 67 can be inserted into the air inlet lock portion 68, the air inlet accessory lock portion 67 is provided with a hole corresponding to the through hole of the air inlet lock portion 68, and one end of the lock post 64 passes through the holes of the air inlet lock portion 68 and the air inlet accessory lock portion 67 at the same time to lock the air inlet accessory 4 with the machine body 1. The locking disc 61 is provided with a hook claw 65, the locking column 64 is provided with a blocking part 66, the blocking part 66 is abutted against the hook claw 65, when the air inlet accessory 4 needs to be detached, the first terminal 511 of the time delay locking piece 51 is inserted into the second terminal 611 of the locking disc 61, the locking column 64 is driven by the hook claw 65 to be separated from the air inlet locking part 68 and the air inlet accessory locking part 67 by rotating (clockwise in the drawing), and the air inlet accessory 4 can be detached quickly.
As can be seen from the above description, the time delay lock 51 plays the role of transition and engagement from "time delay removal" to "quick removal". In order to prevent the delay lock member 51 from being lost after being separated from the machine body 1, a connecting wire 7 may be used to flexibly connect the delay lock member to the machine body 1 without affecting the mounting or dismounting operation, and the connecting wire 7 may be a rope or a chain; in addition, the first terminal 511 on the delay lock 51 and the second terminal 611 on the lock disk 61 may be shaped in a non-standard, irregular shape, which is shown as an oval shape, or may be shaped as a polygon, a star or other irregular shape, so as to prevent the quick release structure 6 from opening the air intake by mistake using other tools. As for which of the first terminal 511 and the second terminal 611 adopts the male end and which adopts the female end, there is no difference in technology, so long as they are matched.
For the safety gauge, the delay dismounting structure and the quick dismounting structure can be further provided with a micro switch for sensing whether the accessory is mounted in place or not and transmitting signals to the controller. When the accessory is installed in place, the controller only rotates the impeller; when the accessory is not in place, the controller will direct the impeller to be non-rotatable (e.g., shut off the motor power).
Specifically, as shown in fig. 2 and 4, the time delay disassembly structure 5 further includes a first micro switch 54, a first elastic member 56, a second elastic member 57, and a connecting rod 55, where the first elastic member 56 is connected to the air outlet lock portion 53, and the air outlet lock portion 53 is provided with a blocking portion (not labeled in the drawings), and the air outlet accessory lock portion 52 abuts against the blocking portion. The connecting rod 55 is a lever, one end of a fulcrum of the lever is abutted against the delay locking piece 51, the other end of the lever is abutted against the contact of the first micro switch 54 and the second elastic piece 57, when the delay locking piece 51 is completely screwed in, the lower end of the lever presses down one end of the connecting rod 55, the other end of the connecting rod 55 is tilted to trigger the first micro switch 54, and meanwhile, the second elastic piece 57 is elastically deformed; when the delay locking piece 51 is unscrewed, under the action of the restoring force of the second elastic piece 57, the connecting rod 55 immediately releases the contact of the first micro switch 54, the controller can sense that the accessory is not installed in place, and then the motor power supply is cut off, and the impeller 2 gradually decelerates and stops. In this way, it is ensured that the shutdown is triggered as soon as the disassembly of the accessory is started without active shutdown.
The air outlet lock 53 and the air outlet accessory lock 52 are both arranged in the casing, through holes are formed in the casing, and when the accessory is installed in place, the delay lock 51 can pass through the casing, the air outlet accessory lock 52 and the through holes of the air outlet lock 53 at the same time. When the accessory is not installed in place, the through hole of the air outlet lock part 53 deviates from the through hole of the casing under the action of the first elastic piece 56, so that the delay locking piece 51 cannot be inserted; when the accessory is installed in place, the air outlet accessory lock part 52 abuts against the blocking part of the air outlet lock part 53 and pushes the air outlet lock part 53, so that the through holes of the three correspond to each other, and the delay lock part 51 can be inserted. In this way, the delay lock 51 can be prevented from triggering the first micro switch 54 without the attachment being mounted.
As shown in fig. 3 and 5, for the quick release structure 6, a second microswitch 62 and a third elastic member 63 are also included. The contact of the second micro-switch 62 is disposed at the top end of the slot-shaped air inlet lock portion 68, and when the air inlet accessory lock portion 67 is inserted into the air inlet lock portion 68 and locked by the lock post 64, the top end of the air inlet accessory lock portion 67 triggers the contact of the second micro-switch 62, and the controller senses that the air inlet accessory 4 is mounted in place. The third elastic member 63 is connected with the quick locking member, when the accessory is not installed, the locking column 64 enters the groove of the air inlet locking portion 68 under the action of the third elastic member 63, at this time, only after the air inlet accessory 4 is installed by using the delay locking member 51, the air outlet accessory 3 is installed, the first micro switch 54 and the second micro switch 62 can be triggered simultaneously, and then the impeller 2 is started to rotate, so that the blowing and sucking machine works. In this way, the impeller 2 is prevented from being started without all the accessories being mounted in place, avoiding that the accessories are left unfilled.
In the above-listed embodiments, the delay locking member adopts a "rotation delay" manner, and in addition, the delay unlocking can be realized by using an electromagnet, and at this time, the delay disassembly structure includes: the device comprises an electromagnet, a time-delay locking piece, an air outlet accessory locking part and an air outlet locking part (or an air inlet accessory locking part and an air inlet locking part). Wherein the electromagnet is connected with the delay capacitor, or the electromagnet comprises a delay damper; when the lock is locked, the lock column of the electromagnet locks the delay locking piece, the air outlet accessory lock part and the air outlet lock part simultaneously; after the power is off, under the action of a delay capacitor or a delay damper, after a predetermined time of delay, the electromagnet lock column is sprung open to unlock, and at the moment, the delay locking piece is detachable and used for unlocking the quick-dismantling structure of the air inlet.
Through the description, the invention discloses the electric tool with the delayed disassembly protection structure, and the two parts of the air inlet and the air outlet of the electric tool are associated by endowing the electric tool with the dual functions of the delayed locking piece, so that one part of the electric tool is set to be a delayed disassembly structure, the other part of the electric tool is set to be a quick disassembly structure, and on the premise of ensuring safety, the disassembly and installation time of nearly half of the electric tool is shortened, and greater comfort and convenience are brought to operators.
In the implementation process, any position adopting a 'delayed disassembly structure' and any position adopting a 'quick disassembly structure' can be arbitrarily selected according to the specific form of the electric tool; the mode of 'delay' can adopt a plurality of modes such as 'rotation delay' or 'magnetic attraction delay'; the first terminal on the delay locking piece and the second terminal on the quick locking piece adopt special-shaped structures, so that the quick locking piece can be unlocked only by the delay locking piece; in addition, through setting up micro-gap switch respectively in two junction, can avoid the annex to be neglected loading, effectively prevented starting abnormal conditions such as impeller under the condition that not put in place with all annexes.
Claims (5)
1. An electric tool with delay dismantlement protection architecture, includes two detachable connecting portions at least between this electric tool's annex and the organism, its characterized in that: the air conditioner comprises a machine body, wherein the machine body is provided with an air outlet and an air inlet, connecting parts are respectively arranged between the air outlet and the air outlet (3) and between the air inlet and the air inlet (4), one of the connecting parts is a time delay disassembly structure (5), and the other of the connecting parts is a quick disassembly structure (6); the delay disassembly structure (5) comprises a separable delay locking piece (51), and the quick disassembly structure (6) can only be unlocked by using the delay locking piece (51);
The delay disassembly structure (5) comprises a delay locking piece (51), an air inlet or air outlet accessory lock part and an air inlet or air outlet lock part, wherein one end of the delay locking piece (51) is a screw rod, the other end of the delay locking piece is a first terminal (511), and when the accessory lock part is inserted into the air outlet lock part, the screw rod of the delay locking piece (51) simultaneously penetrates through a hole on the accessory lock part and the air outlet lock part, so that an air inlet accessory or an air outlet accessory is locked with a machine body (1) of the electric tool; correspondingly, the quick disassembly structure (6) comprises a quick locking piece, an air outlet or air inlet locking part and an air outlet or air inlet accessory locking part, wherein the quick locking piece comprises a locking disc (61) and a locking column (64), a second terminal (611) matched with the first terminal (511) is arranged on the locking disc (61), after the time-delay locking piece (51) is disassembled, the first terminal (511) can be inserted into the second terminal (611) on the locking disc (61), the locking disc (61) is driven to rotate by rotating the time-delay locking piece (51), and then the locking column (64) acts, so that quick disassembly between the air outlet locking part and the accessory locking part is realized;
The screw rod end of the time-delay locking piece (51) simultaneously passes through the accessory locking part and the hole above the air port locking part, at least one hole is internally provided with threads matched with the screw rod, and the time for detaching the screw rod from the two holes is not lower than the inertia running time from power failure to stop of the impeller (2) of the electric tool.
2. The power tool with delayed disassembly protection architecture of claim 1, wherein: the first terminal (511) and the second terminal (611) are elliptical, star-shaped or irregular polygonal in shape.
3. The power tool with delayed disassembly protection architecture of claim 1, wherein: the delay disassembly structure (5) further comprises an electromagnet and a delay capacitor or a delay damper, and when the electric tool is locked, a lock column of the electromagnet locks the delay locking piece (51) and an accessory lock part and a wind port lock part of the electric tool at the same time; after power failure, under the effect of a delay capacitor or a delay damper, after a predetermined time of delay, the electromagnet lock column is sprung open to unlock, and the delay locking piece (51) is detachable and used for unlocking the quick-dismantling structure (6).
4. The power tool with delayed disassembly protection architecture of claim 1, wherein: the time delay dismounting structure (5) and the quick dismounting structure (6) are respectively provided with a micro switch and an elastic piece, when all accessories are not installed in place, the elastic piece can sense abnormality, so that the micro switch acts, and then the power supply of the electric tool is cut off through the controller.
5. The power tool with delayed disassembly protection architecture of claim 1, wherein: the delay locking piece (51) is flexibly connected to the electric tool through a rope or a chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216766.9A CN108239952B (en) | 2016-12-26 | 2016-12-26 | Electric tool with delay disassembly protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216766.9A CN108239952B (en) | 2016-12-26 | 2016-12-26 | Electric tool with delay disassembly protection structure |
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| Publication Number | Publication Date |
|---|---|
| CN108239952A CN108239952A (en) | 2018-07-03 |
| CN108239952B true CN108239952B (en) | 2024-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611216766.9A Active CN108239952B (en) | 2016-12-26 | 2016-12-26 | Electric tool with delay disassembly protection structure |
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| CN (1) | CN108239952B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206467612U (en) * | 2016-12-26 | 2017-09-05 | 天佑电器（苏州）有限公司 | Electric tool with delay dismounting protection structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202011050667U1 (en) * | 2011-07-08 | 2011-09-09 | Neumeister Hydraulik Gmbh | Safety shut-off valve |
| CN103195965A (en) * | 2012-01-04 | 2013-07-10 | 西安德力工业公司宏大阀门厂 | Electric-hydraulic control valve for Internet of Things |
| ITVI20130291A1 (en) * | 2013-12-06 | 2015-06-07 | Pizzato Elettrica Srl | TIMED SAFETY SWITCH WITH MANUAL OPERATION |
| CN205382457U (en) * | 2016-01-28 | 2016-07-13 | 宁波创跃园林工具有限公司 | Suction machine's air intake safety locking structure |
| CN105862641B (en) * | 2016-06-16 | 2020-06-30 | 天佑电器（苏州）有限公司 | Gardening electric tool with power-off delay protection function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206467612U (en) * | 2016-12-26 | 2017-09-05 | 天佑电器（苏州）有限公司 | Electric tool with delay dismounting protection structure |
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