CN111775119A - Safety lock assembly, starting method of safety lock assembly and garden tool - Google Patents
Safety lock assembly, starting method of safety lock assembly and garden tool Download PDFInfo
- Publication number
- CN111775119A CN111775119A CN202010767492.2A CN202010767492A CN111775119A CN 111775119 A CN111775119 A CN 111775119A CN 202010767492 A CN202010767492 A CN 202010767492A CN 111775119 A CN111775119 A CN 111775119A
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- Prior art keywords
- trigger
- self
- locking piece
- lock assembly
- safety lock
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- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000003213 activating effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention provides a safety lock assembly, a starting method of the safety lock assembly and a garden tool, wherein the safety lock assembly comprises: a self-locking member cooperating with the trigger to lock the trigger; the unlocking button is slidably mounted on the trigger; when the clamping part of the self-locking piece abuts against the trigger, the trigger is locked, and the trigger cannot rotate around the first pivot at the moment; when the unlocking button is pushed to slide along the trigger, the unlocking button abuts against the self-locking piece, so that the clamping part of the self-locking piece is separated from the trigger, the trigger is unlocked, and the trigger can rotate around the first pivot at the moment. Compared with the prior art, the safety lock assembly is simple in structure and can be operated by one hand, when the safety lock assembly is used, a user needs to unlock in the first direction and then start the trigger in the second direction, so that the user cannot grasp the trigger by one hand to cause abnormal starting, and the safety lock assembly meets the safety regulation requirement.
Description
Technical Field
The invention relates to a safety lock assembly, a starting method of the safety lock assembly and a garden tool with the safety lock assembly.
Background
Hand-held power tools are typically provided with a trigger on an operating handle for grasping by a user and a safety lock button that cooperates with the trigger. When the electric tool is started, a user must unlock the safety lock button and the trigger. So set up, be in order to prevent that electric tool from being started by mistake to bring the potential safety hazard. However, existing triggers are typically disposed below the operating handle, while the safety lock knob is typically disposed above or to the side of the operating handle. When the safety lock button is arranged above the operating handle, a user can unlock the lock only by pressing the safety lock button. Because the user can hold the operating handle with one hand to unlock and start the trigger, the two actions cannot be distinguished obviously in use, so that the false start is easy, potential safety hazards exist, and the safety requirements are not met. The safety lock structure arranged on the side surface of the operating handle is complex, and the operation of a user is complex.
In view of the above, there is a need for a new safety lock assembly to solve the above problems.
Disclosure of Invention
The invention aims to provide a safety lock assembly which is simple in structure and can be operated by one hand, and when the safety lock assembly is used, a user needs to unlock in a first direction and then start a trigger in a second direction, so that the safety lock assembly meets the safety regulation requirement.
To achieve the above object, the present invention provides a safety lock assembly for locking/unlocking a trigger pivotally mounted on a housing through a first pivot, comprising: the self-locking piece comprises a clamping part matched with the trigger to lock the trigger; and an unlock button mounted on the trigger and slidable along the trigger; when the clamping part of the self-locking piece abuts against the trigger, the trigger is locked, and the trigger cannot rotate around the first pivot at the moment; when the unlocking button is pushed to slide along the trigger, the unlocking button abuts against the self-locking piece, so that the clamping part of the self-locking piece is separated from the trigger, the trigger is unlocked, and the trigger can rotate around the first pivot at the moment.
As a further improvement of the invention, the self-locking piece is pivotally connected to the housing through a second pivot; when the unlocking button is pushed to slide along the trigger, the unlocking button abuts against the self-locking piece, and the self-locking piece rotates around the second pivot at the moment, so that the clamping part of the self-locking piece is separated from the contact with the trigger.
As a further development of the invention, the second pivot axis is perpendicular to the first pivot axis.
As a further improvement of the present invention, the safety lock assembly is further provided with a first elastic element matched with the self-locking piece; one end of the first elastic element is installed on the self-locking piece, and the other end of the first elastic element is installed on the shell.
As a further improvement of the invention, the safety lock assembly is also provided with a second elastic element matched with the unlocking button; one end of the second elastic element is installed on the unlocking button, and the other end of the second elastic element is installed on the trigger.
As a further improvement of the present invention, the trigger includes a pressing portion and an abutting arm located on both sides of the first pivot; the pressing part is at least partially positioned outside the shell, and the abutting arm is positioned inside the shell; the self-locking piece is matched with the pressing part or the abutting arm.
As a further improvement of the invention, one side of the unlocking button facing the self-locking piece is provided with a butting part matched with the self-locking piece, and the butting part is wedge-shaped; when the unlocking button is pushed to slide, the abutting part abuts against the self-locking piece, so that the self-locking piece moves.
As a further improvement of the present invention, the self-locking member is provided with a guiding portion which is matched with the abutting portion to guide the abutting portion to smoothly abut against the self-locking member.
The present invention also provides a method of actuating the safety lock assembly described above, including the steps of:
s1: sliding an unlocking button in a first direction along a trigger, wherein the unlocking button abuts against the self-locking piece, so that a clamping part of the self-locking piece is separated from contact with the trigger, and the trigger is unlocked;
s2: operating the trigger in a second direction causes the trigger to rotate relative to the housing about the first pivot.
The invention also provides a garden tool, which comprises a working mechanism, wherein the working mechanism is used for realizing the function of the garden tool; the operating rod is arranged at one end of the operating rod; and the safety lock assembly is arranged on the operating rod.
The invention has the beneficial effects that: the safety lock assembly is simple in structure and can be operated by one hand, and when the safety lock assembly is used, a user needs to unlock in the first direction and then start a trigger in the second direction, so that the safety lock assembly meets the safety regulation requirement.
Drawings
Fig. 1 is a schematic perspective view of a garden tool according to the present invention.
Fig. 2 is a schematic perspective view of the control switch assembly of the present invention.
FIG. 3 is a schematic view of the mating of the electronic switch, trigger, and safety lock assembly in the locked condition.
FIG. 4 is a schematic view of the cooperation of the electronic switch, trigger, and safety lock assembly in the unlocked state of the safety lock assembly.
Fig. 5 is a perspective view of the self-locking element.
Fig. 6 is a schematic structural diagram of the first housing and the speed regulating unit.
FIG. 7 is a flow chart of a method of activating the safety lock assembly of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the present invention discloses a gardening tool 100, which includes a working mechanism 10, an operating lever 20, a battery assembly 30 for supplying power to the working mechanism 10, and a control switch assembly 40 for controlling the working mechanism 10 to operate. The working mechanism 10 is mounted at one end of the operating lever 20 to perform the function of the garden tool 100. In the present embodiment, the working mechanism 10 is a grass trimmer, but in other embodiments, the working mechanism 10 may also be a pruning shear, a pruning knife, and the like, which are not limited by the present invention. The operation rod 20 includes a rod body 21 having a long cylindrical shape and an auxiliary handle 22 mounted on the rod body 21. The battery assembly 30 is mounted at an end of the rod 21 facing away from the working mechanism 10, and the battery assembly 30 includes a battery pack (not shown) for supplying power to the working mechanism 10 and the control switch assembly 40. Since the battery pack may have an existing structure, which is not a main protection point of the present invention, it will not be described in detail herein. The auxiliary handle 22 is located between the work mechanism 10 and the battery assembly 30.
Referring to fig. 2 and 3, the control switch assembly 40 is installed at an end of the rod 21 away from the working mechanism 10 and located between the auxiliary handle 22 and the battery assembly 40. The control switch assembly 40 includes a housing 41 mounted on the rod body 21, a trigger 42 pivotally mounted on the housing 41, an electronic switch 43 engaged with the trigger 42, a safety lock assembly 44 engaged with the trigger 42, and a speed adjusting unit 45. Referring to fig. 2 and fig. 5, the housing 41 includes a first housing 411 and a second housing 412, and the first housing 411 and the second housing 412 together enclose to form an accommodating cavity 413. The housing 41 is further provided with a first opening 414 and a second opening 415, and the first opening 414 and the second opening 415 are respectively located at two sides of the housing 41 and are communicated with the accommodating cavity 413. The rod 21 sequentially passes through the first opening 414, the accommodating cavity 413 and the second opening 415, so that the housing 41 is fixedly mounted on the rod 21. The first housing 411 is further provided with a stroke slot 4111 matched with the speed regulating unit 45. The trigger 42 is pivotally mounted on the housing 41 through a first pivot 421, and the trigger 42 includes a pressing portion 422 and a holding arm 423 located at two sides of the first pivot 421. The pressing portion 422 is at least partially located outside the housing 41, and the supporting arm 423 is located inside the accommodating cavity 413. Referring to fig. 2, when the user presses the pressing portion 422 along the second direction AA, the supporting arm 423 rotates around the first pivot 421 under the action of the pressing portion 422, so as to support the electronic switch 43, so that the electronic switch 43 is triggered. The electronic switch 43 is used to activate the work mechanism 10. When the abutting arm 423 abuts against the electronic switch 43, the electronic switch 43 is triggered, and the electronic switch 43 controls the work mechanism 10 to work; when the abutting arm 423 is out of contact with the electronic switch 43, the electronic switch 43 is turned off, and the work mechanism 10 stops working.
Referring to fig. 3, 4 and 2, the safety lock assembly 44 is used to lock/unlock the trigger 42. The safety lock assembly 44 includes a self-locking member 51 engaged with the trigger 42, a first elastic member (not shown) engaged with the self-locking member 51, an unlocking button 52 installed on the trigger 42, and a second elastic member (not shown) engaged with the unlocking button 52. The self-locking member 51 includes a self-locking piece 511 coupled to the trigger 42 and a second pivot 512 at one side of the self-locking piece 511. The self-locking block 511 is pivotally mounted on the housing 41 via the second pivot 512, so that the self-locking block 511 can rotate around the second pivot 512. As shown in fig. 5, a guiding portion 5111, a locking portion 5112 and a limiting portion 5113 are further disposed on a side of the self-locking block 511 away from the second pivot 512. The connection line of the guide portion 5111, the locking portion 5112 and the limiting portion 5113 is substantially parallel to the axis of the second pivot 512, and the locking portion 5112 is located between the guide portion 5111 and the limiting portion 5113. In the embodiment, the second pivot 512 is disposed perpendicular to the first pivot 421, but it is understood that in other embodiments, the second pivot 512 may not be perpendicular to the first pivot 421, for example: the second pivot 512 is parallel to the first pivot 421. In this embodiment, when the self-locking member 51 is rotated to make the catch portion 5112 contact and abut against the trigger 42, the trigger 42 is locked, and the trigger 42 cannot rotate around the first pivot 421; when the self-locking member 51 is rotated to disengage the catching portion 5112 from the trigger 42, the trigger 42 is unlocked, and the trigger 42 can rotate around the first pivot 421, and the maximum rotation distance is limited by the limiting portion 5113. The sidewall of the self-locking block 511 is further provided with a positioning groove 5114 matched with the first elastic element to fix the first elastic element. One end of the first elastic member is fixedly installed in the positioning groove 5114, and the other end is fixedly installed on the housing 41. The unlocking button 52 includes a main body 521 mounted on the pressing part 422, a holding part 522 formed to protrude outward from one side of the main body 521, and a pushing part 523. The main body 521 is slidably mounted on the pressing part 422 such that the main body 521 can slide in a first direction BB along the pressing part 422. In this embodiment, a receiving cavity is formed in the main body 521 to at least partially receive the pressing portion 422. The abutting portion 522 is wedge-shaped, is located on one side of the main body portion 521 facing the self-locking element 51, and is matched with the guiding portion 5111. The boosting part 523 is located at one side of the main body part 521 and is substantially perpendicular to the main body part 521, so that a user can push the main body part 521 to slide along the pressing part 422 in the first direction BB through the boosting part 523. One end of the second elastic member is mounted on the unlock button 52, and the other end is mounted on the pressing portion 422. In this embodiment, the second elastic element is mounted in the receiving cavity of the body 521. The speed regulating unit 45 comprises a speed regulating button 451 arranged in the stroke groove 4111 and a speed electric control switch 452 matched with the speed regulating button 451. The speed button 451 is slidable in the stroke groove 4111. The speed control switch 452 is used to adjust the operating speed of the work implement 10. In this embodiment, the speed electrically controlled switch 452 has two operating speeds. When the user pushes the speed regulating button 451 to be in a first state, the speed electric control switch 452 controls the working mechanism 10 to work at a first speed; when the user pushes the speed button 451 to be in the second state, the speed electric control switch 452 controls the working mechanism 10 to work at the second speed.
Referring to fig. 7, the present invention also discloses a method for activating the safety lock assembly 44, which includes the following steps:
s1: sliding an unlocking button 52 in a first direction BB along the trigger 42, the unlocking button 52 abutting against the self-locking piece 51, so that the detent 5112 of the self-locking piece 51 is out of contact with the trigger 42, and the trigger 42 is unlocked;
s2: operating the trigger 42 in the second direction AA causes the trigger 42 to rotate relative to the housing 41 about the first pivot 421 such that the retaining arm 423 of the trigger 42 contacts the telescopic arm of the electronic switch 43. When the pressing portion 422 of the trigger 42 contacts the limit portion 5113, the movement stroke of the trigger 42 reaches the maximum limit, so that the electronic switch 43 is stably started, and the operation mechanism 10 starts to operate.
Referring to fig. 4, when the user pushes the unlock button 52 along the first direction BB, so that the unlock button 52 slides along the pressing portion 422, the second elastic element is elastically deformed, the abutting portion 522 abuts against the guiding portion 5111, and drives the self-locking block 511 to rotate around the second pivot 512, so that the latching portion 5112 is disengaged from the pressing portion 422 of the trigger 42, at this time, the first elastic element is in an elastically deformed state, the trigger 42 is in an unlocked state, and the user can press the trigger 42 along the second direction AA; after the user releases the unlocking button 52, the unlocking button 52 is reset under the action of the second elastic element, the abutting portion 522 is separated from the contact with the guiding portion 5111, the self-locking block 511 is reset under the action of the first elastic element, at this time, the blocking portion 5112 contacts and abuts against the pressing portion 422 (as shown in fig. 3), the trigger 42 is in a locked state, and the user cannot press the trigger 42. When the safety lock is used, a user needs to unlock the lock in the first direction BB first and then start the trigger 42 in the second direction AA, so that the trigger 42 cannot be started abnormally due to being pressed unintentionally in a non-use state, the safety coefficient is high, and the safety lock meets the safety requirement. Moreover, the safety lock assembly 44 is arranged on the trigger 42, so that the unlocking, the trigger 42 starting and other operations can be realized by one hand of a user, and the use by the user is convenient.
In the present embodiment, the self-locking piece 51 is configured to cooperate with the pressing portion 422, but in other embodiments, the self-locking piece 51 may also be configured to cooperate with the holding arm 423. In this embodiment, the self-locking piece 51 and the unlocking button 52 are configured as follows: when the unlocking button 52 is pushed to slide toward the first pivot 421, the unlocking button 52 abuts against the self-locking piece 51, so that the blocking portion 5112 of the self-locking piece 51 is out of contact with the trigger 42, but in other embodiments, the self-locking piece 51 and the unlocking button 52 may be configured as follows: when the unlocking button 52 is pushed to slide in a direction away from the first pivot 421, the unlocking button 52 abuts against the self-locking piece 51, so that the catch part of the self-locking piece 51 is out of contact with the trigger 42.
Compared with the prior art, the safety lock assembly 44 disclosed by the invention is simple in structure and can be operated by a single hand, and when the safety lock assembly is used, a user needs to perform unlocking action in the first direction and then perform trigger starting action in the second direction, so that the user cannot grasp the trigger by the single hand to cause abnormal starting, and the safety lock assembly meets the safety regulation requirement.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A safety lock assembly for locking/unlocking a trigger pivotally mounted to a housing by a first pivot, comprising:
the self-locking piece comprises a clamping part matched with the trigger to lock the trigger; and
an unlock button mounted on the trigger and slidable along the trigger;
when the clamping part of the self-locking piece abuts against the trigger, the trigger is locked, and the trigger cannot rotate around the first pivot at the moment;
when the unlocking button is pushed to slide along the trigger, the unlocking button abuts against the self-locking piece, so that the clamping part of the self-locking piece is separated from the trigger, the trigger is unlocked, and the trigger can rotate around the first pivot at the moment.
2. The security lock assembly of claim 1, wherein: the self-locking piece is pivotally connected and installed on the shell through a second pivot; when the unlocking button is pushed to slide along the trigger, the unlocking button abuts against the self-locking piece, and the self-locking piece rotates around the second pivot at the moment, so that the clamping part of the self-locking piece is separated from the contact with the trigger.
3. The security lock assembly of claim 2, wherein: the second pivot is perpendicular to the first pivot.
4. The security lock assembly of claim 1, wherein: the safety lock assembly is also provided with a first elastic element matched with the self-locking piece; one end of the first elastic element is installed on the self-locking piece, and the other end of the first elastic element is installed on the shell.
5. The security lock assembly of claim 1, wherein: the safety lock assembly is also provided with a second elastic element matched with the unlocking button; one end of the second elastic element is installed on the unlocking button, and the other end of the second elastic element is installed on the trigger.
6. The security lock assembly of claim 1, wherein: the trigger comprises a pressing part and a propping arm which are positioned at two sides of the first pivot; the pressing part is at least partially positioned outside the shell, and the abutting arm is positioned inside the shell; the self-locking piece is matched with the pressing part or the abutting arm.
7. The security lock assembly of claim 1, wherein: one side of the unlocking button facing the self-locking piece is provided with a butting part matched with the self-locking piece, and the butting part is wedge-shaped; when the unlocking button is pushed to slide, the abutting part abuts against the self-locking piece, so that the self-locking piece moves.
8. The safety lock assembly as recited in claim 7, wherein: the self-locking piece is provided with a guide part matched with the abutting part so as to guide the abutting part to smoothly abut against the self-locking piece.
9. A method of actuating a safety lock assembly according to any one of claims 1 to 8, including the steps of:
s1: sliding an unlocking button in a first direction along a trigger, wherein the unlocking button abuts against the self-locking piece, so that a clamping part of the self-locking piece is separated from contact with the trigger, and the trigger is unlocked;
s2: operating the trigger in a second direction causes the trigger to rotate relative to the housing about the first pivot.
10. A garden tool, comprising:
a work mechanism to implement the function of the garden tool;
the operating rod is arranged at one end of the operating rod; and
a safety lock assembly according to any one of claims 1 to 8, mounted on said operating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010767492.2A CN111775119A (en) | 2020-08-03 | 2020-08-03 | Safety lock assembly, starting method of safety lock assembly and garden tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010767492.2A CN111775119A (en) | 2020-08-03 | 2020-08-03 | Safety lock assembly, starting method of safety lock assembly and garden tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111775119A true CN111775119A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010767492.2A Pending CN111775119A (en) | 2020-08-03 | 2020-08-03 | Safety lock assembly, starting method of safety lock assembly and garden tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111775119A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004148441A (en) * | 2002-10-30 | 2004-05-27 | Kobayashi Gimune Seisakusho:Kk | Chuck for angular shank of tool |
| US20160185135A1 (en) * | 2014-12-24 | 2016-06-30 | Seiko Instruments Inc. | Printing unit and thermal printer |
| CN207736251U (en) * | 2017-12-29 | 2018-08-17 | 常州格力博有限公司 | Handleset and garden instrument with the Handleset |
| CN110065021A (en) * | 2019-04-28 | 2019-07-30 | 新华三技术有限公司 | Wrench assembly and plug-in module |
| CN210615356U (en) * | 2018-12-28 | 2020-05-26 | 南京德朔实业有限公司 | Electric tool |
| CN212330938U (en) * | 2020-08-03 | 2021-01-12 | 格力博(江苏)股份有限公司 | Safety lock subassembly and garden instrument |
-
2020
- 2020-08-03 CN CN202010767492.2A patent/CN111775119A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004148441A (en) * | 2002-10-30 | 2004-05-27 | Kobayashi Gimune Seisakusho:Kk | Chuck for angular shank of tool |
| US20160185135A1 (en) * | 2014-12-24 | 2016-06-30 | Seiko Instruments Inc. | Printing unit and thermal printer |
| CN207736251U (en) * | 2017-12-29 | 2018-08-17 | 常州格力博有限公司 | Handleset and garden instrument with the Handleset |
| CN210615356U (en) * | 2018-12-28 | 2020-05-26 | 南京德朔实业有限公司 | Electric tool |
| CN110065021A (en) * | 2019-04-28 | 2019-07-30 | 新华三技术有限公司 | Wrench assembly and plug-in module |
| CN212330938U (en) * | 2020-08-03 | 2021-01-12 | 格力博(江苏)股份有限公司 | Safety lock subassembly and garden instrument |
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