CN209831554U - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN209831554U CN209831554U CN201920375497.3U CN201920375497U CN209831554U CN 209831554 U CN209831554 U CN 209831554U CN 201920375497 U CN201920375497 U CN 201920375497U CN 209831554 U CN209831554 U CN 209831554U
- Authority
- CN
- China
- Prior art keywords
- limiting
- control
- power tool
- control member
- mandrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model provides a power tool: a body; a rotor, which is rotatablely arranged in the body; a spindle in rotational interlocking relationship with the rotor; a rotation limiting mechanism, including a first limiting part arranged on the mandrel, at least one limiting part moving relative to the first limiting part, an elastic part connected with the at least one limiting part, and at least one control part arranged on the body, wherein the at least one limiting part is provided with a second limiting part which can be clamped with the first limiting part, and the at least one control part can be operated at a locking position or a releasing position to clamp the at least one limiting part so as to lock or release the at least one limiting part; when the at least one control piece is positioned at the locking position, the second limiting part is not clamped against the first limiting part, and the mandrel can freely rotate; when the at least one control member is operated from the self-locking position to the releasing position, the at least one control member releases the at least one limiting member, and the elastic member elastically pushes the at least one limiting member to enable the second limiting portion to move to be clamped with the first limiting portion to limit the mandrel from rotating.
Description
Technical Field
The utility model relates to a power tool.
Background
A common rotating tool is used for connecting a working part to drive the working part to rotate, so that the working efficiency is improved. Common working components include screwdriver bits, sleeves, and drills. When replacing the working component, since the working component is linked with the spindle of the rotating tool, the operator needs to fix the spindle with a tool (such as a wrench) and then rotate the working component with another tool to replace the working component, which is very inconvenient in operation.
Although the conventional rotating tool has a spindle locking structure, it is necessary to continuously press or push the limiting member during the process of replacing the working component so as to keep the limiting member interfering with the spindle to achieve the purpose of limiting the rotation of the spindle, and the conventional rotating tool has the problems of insufficient convenience in operation, difficulty in replacing and maintaining parts, and the like because of poor configuration of the conventional spindle locking structure.
Therefore, there is a need for a novel and improved power tool to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a power tool, which can be easily operated to limit the rotation of the spindle.
To achieve the above object, the present invention provides a power tool, including: a body; a rotor, which is rotatably arranged in the body; a spindle in rotational interlocking relationship with the rotor; a rotation limiting mechanism, including a first limiting part arranged on the mandrel, at least one limiting part movable relative to the first limiting part, an elastic part connected with the at least one limiting part, and at least one control part arranged on the body, wherein the at least one limiting part is provided with a second limiting part capable of being clamped with the first limiting part, and the at least one control part can be operated at a locking position or a releasing position to clamp the at least one limiting part so as to lock or release the at least one limiting part; when the at least one control piece is positioned at the locking position, the second limiting part is not clamped with the first limiting part, and the mandrel can freely rotate; when the at least one control member is operated from the locking position to the releasing position, the at least one control member releases the at least one limiting member, and the elastic member automatically elastically moves the at least one limiting member to enable the second limiting portion to move to be abutted against the first limiting portion to limit the mandrel from freely rotating.
Preferably, the at least one limiting member includes a sliding sleeve sleeved on the mandrel, and the sliding sleeve is provided with the second limiting portion.
Preferably, the at least one control member is pivotally connected to the body, and the at least one control member can swing toward or away from the spindle.
Preferably, the at least one control member is pivotally connected to the body, and the at least one control member swings around an axis pointing to the spindle.
Preferably, in the above-described aspect, at least one control member is provided on the body so as to be radially pressable or slidable along a circumferential surface of the body.
Preferably, the at least one control member is disposed at the release position, and the at least one control member is disposed at the elastic member, so that the at least one control member is returned to the lock position.
Preferably, the body includes a seat portion, the seat portion includes at least one sliding slot extending radially therethrough, and the at least one pushing member is disposed through the at least one sliding slot and can slide along the mandrel.
Preferably, in the above technical solution, the at least one control member is provided with a first engaging portion, the at least one limiting member is further provided with a second engaging portion capable of engaging with the first engaging portion, and when the first and second engaging portions engage, the at least one control member is located at the locking position.
Preferably, one of the first engaging portion and the second engaging portion includes at least one protrusion, and the other includes at least one recess capable of engaging with the at least one protrusion.
Preferably, one of the first limiting portion and the second limiting portion includes at least one convex portion, and the other includes at least one concave portion capable of being engaged with the at least one convex portion; the at least one convex part is a polygonal convex part, and the at least one concave part is a polygonal concave part which can be clamped with the polygonal convex part; the limiting part comprises a sliding sleeve sleeved on the mandrel, and the sliding sleeve is provided with the second limiting part; the at least one control piece is pivoted to the body and can swing towards or away from the mandrel; the power tool further comprises an elastic member positioned between the seat part and the at least one control member, and the elastic member is propped against the at least one control member so that the at least one control member normally swings towards the mandrel; the control piece is provided with a first clamping part, the limiting piece is further provided with a second clamping part which can be clamped with the first clamping part, and when the first clamping part and the second clamping part are clamped, the control piece is positioned at the locking position; one of the first clamping part and the second clamping part comprises at least one convex part, and the other clamping part comprises at least one concave part which can be clamped with the at least one convex part; the at least one convex part is integrally arranged on the convex block of the at least one control part, and the at least one concave part is an annular groove annularly arranged on the sliding sleeve.
The utility model has the advantages that can stabilize the locking mandrel, play restriction mandrel pivoted purpose, solve prior art center pin locking structure configuration bad and have unable stable locking mandrel, part change and the difficult scheduling problem of maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a preferred embodiment of the present invention.
Fig. 2 is an exploded view of a preferred embodiment of the present invention.
Fig. 3 is a cross-sectional view of a preferred embodiment of the present invention.
Fig. 4 is a first operation diagram of a preferred embodiment of the present invention.
Fig. 5 is a second operation diagram of a preferred embodiment of the present invention.
Wherein, 1: a power tool; 10: a body; 11: a seat portion; 111: a chute; 20: a rotor; 30: a mandrel; 40: a rotation limiting mechanism; 41: a first restriction section; 411,442: a convex portion; 42: a limiting member; 421: a second restriction portion; 422,425: a recess; 423: a sliding sleeve; 424: a second card portion; 43,60: an elastic member; 44: a control member; 441: a first engaging portion; 50: and (5) pushing the parts.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The following description is given by way of example only, and not by way of limitation, of the present invention, including .
Referring to fig. 1 to 5, which show a preferred embodiment of the present invention, a power tool 1 of the present invention includes a main body 10, a rotor 20, a spindle 30 and a rotation limiting mechanism 40.
The rotor 20 is rotatably disposed in the body 10; the spindle 30 is in rotational interlocking relationship with the rotor 20; the rotation limiting mechanism 40 includes a first limiting portion 41 disposed on the mandrel 30, at least one limiting member 42 movable relative to the first limiting portion 41, an elastic member 43 connected to the at least one limiting member 42, and at least one control member 44 disposed on the body 10, the at least one limiting member 42 has a second limiting portion 421 engageable with the first limiting portion 41, and the at least one control member 44 is operable at a locking position or a releasing position to engage the at least one limiting member 42 to lock or release the at least one limiting member 42; when the at least one control member 44 is located at the locking position, the second limiting portion 421 is not abutted to the first limiting portion 41, and the mandrel 30 can rotate freely; when the at least one control member 44 is operated from the locking position to the releasing position, the at least one control member 44 releases the at least one limiting member 42, and the elastic member 43 automatically elastically moves the at least one limiting member 42 so that the second limiting portion 421 moves to be engaged with the first limiting portion 41 to limit the spindle 30 from freely rotating. Therefore, the second limiting portion 421 can be automatically moved to abut against the first limiting portion 41 by operating the at least one control member 44, so as to achieve the purpose of limiting the rotation of the spindle 30, and the operation is convenient.
One of the first limiting portion 41 and the second limiting portion 421 includes at least one convex portion 411, and the other includes at least one concave portion 422 capable of engaging with the at least one convex portion 411. In this embodiment, the at least one protrusion 411 is a polygonal protrusion surrounding the mandrel 30, and the at least one recess 422 is a polygonal recess capable of engaging with the polygonal protrusion, so that the mandrel 30 and the at least one restriction member 42 can be stably engaged to restrict the rotation of the mandrel 30. In other embodiments, the at least one convex portion and the at least one concave portion may also have a contact tangent plane or other structures capable of being engaged and limited.
The at least one limiting member 42 includes a sliding sleeve 423 sleeved on the mandrel 30, and the sliding sleeve 423 is provided with the second limiting portion 421 to interfere with the first limiting portion 41. The at least one control member 44 has a first engaging portion 441, the at least one limiting member 42 has a second engaging portion 424 engaging with the first engaging portion 441, and when the first and second engaging portions 441,424 engage, the at least one control member 44 is in the locked position, and the spindle 30 is free to rotate. In detail, one of the first engaging portion 441 and the second engaging portion 424 includes at least one protrusion 442, and the other includes at least one recess 425 capable of engaging with the at least one protrusion 442. In the present embodiment, the at least one protrusion 442 is a protrusion integrally protruding from the at least one control element 44, and the at least one recess 425 is a ring groove annularly formed on the sliding sleeve 423, so that the at least one protrusion and the at least one recess are not aligned in the circumferential direction and are convenient to be engaged with each other.
In this embodiment, the elastic member 43 is a compression spring, and referring to fig. 4 and fig. 5, the at least one control member 44 is pivotally connected to the body 10, and the at least one control member 44 can swing towards or away from the mandrel 30, so that when the at least one control member 44 swings towards the mandrel 30 to be located at the locking position, the sliding sleeve 423 presses against the elastic member 43 to enable the protrusion to be clamped in the annular groove, the second limiting portion 421 is not clamped against the first limiting portion 41, and the mandrel 30 can freely rotate (as shown in fig. 4); when the at least one control member 44 swings away from the mandrel 30 to be located at the release position, the protrusion escapes from the annular groove and the sliding sleeve 423 is pushed by the elastic member 43, so that the first limiting portion 41 automatically interferes with the second limiting portion 421, the rotation of the mandrel 30 can be limited (as shown in fig. 5), and the operation is simple. In other embodiments, the elastic member may also be configured to cooperate with a tension spring; the at least one control member may also be configured to swing about an axis directed toward the spindle; the at least one control piece can also be arranged on the body in a radially pressing manner so as to change the distance of radial insertion into the body; or, the at least one control piece can be arranged on the body in a sliding way along the peripheral surface of the body, and the functions of locking and releasing the at least one limiting piece can be achieved.
Preferably, the power tool 1 further comprises at least one pushing element 50 connected to the at least one limiting element 42, and when the at least one controlling element 44 is located at the releasing position, the at least one pushing element 50 can drive the at least one limiting element 42 to press against the elastic element 43, so that the at least one controlling element 44 returns to the locking position. Preferably, the body 10 includes a seat 11, the seat 11 includes at least one sliding slot 111 extending radially therethrough, and the at least one pushing element 50 is disposed through the at least one sliding slot 111 and can slide along the mandrel 30 to drive the at least one limiting element 42 to move, so as to facilitate the operation and limit the distance that the at least one limiting element 42 moves toward the first limiting portion 41. The seat 11 may be connected to the main body 10, or may be integrally formed with the main body 10. The power tool 1 preferably further comprises an elastic member 60 located between the seat 11 and the at least one control member 44, wherein the elastic member 60 is abutted against the at least one control member 44 such that the at least one control member 44 normally swings towards the spindle 30; when the at least one pushing element 50 drives the at least one limiting element 42 to move to the protrusion (protrusion 442) corresponding to the annular groove, the elastic element 60 can push the at least one controlling element 44 to swing towards the mandrel 30 to engage the protrusion with the annular groove, which is convenient to operate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A power tool, comprising:
a body;
a rotor rotatably disposed in the body;
a spindle in rotational communication with said rotor;
a rotation limiting mechanism, including a first limiting part arranged on the mandrel, at least one limiting part movable relative to the first limiting part, an elastic part connected with the at least one limiting part, and at least one control part arranged on the body, wherein the at least one limiting part is provided with a second limiting part capable of being clamped with the first limiting part, and the at least one control part can be operated at a locking position or a releasing position to clamp the at least one limiting part so as to lock or release the at least one limiting part;
when the at least one control piece is positioned at the locking position, the second limiting part is not clamped with the first limiting part, and the mandrel can rotate freely; when the at least one control member is operated from the locking position to the releasing position, the at least one control member releases the at least one limiting member, and the elastic member automatically elastically moves the at least one limiting member so that the second limiting portion moves to be abutted against the first limiting portion to limit the mandrel from freely rotating.
2. The power tool of claim 1, wherein said at least one limiting member includes a sliding sleeve disposed about said spindle, said sliding sleeve being provided with said second limiting portion.
3. The power tool of claim 1, wherein the at least one control member is pivotally coupled to the body, the at least one control member being swingable toward or away from the spindle.
4. The power tool of claim 1, wherein the at least one control member is pivotally coupled to the body, the at least one control member swinging about an axis directed toward the spindle.
5. The power tool of claim 1, wherein the at least one control member is disposed on the body to be radially depressible or slidably movable along a circumference of the body.
6. The power tool of claim 1, further comprising at least one pushing element connected to the at least one limiting element, wherein when the at least one control element is located at the releasing position, the at least one pushing element drives the at least one limiting element to press against the elastic element to return the at least one control element to the locking position.
7. The power tool of claim 6, wherein the body includes a seat portion, the seat portion includes at least one radially extending slot, and the at least one pushing member is disposed through the at least one slot and slidably moves along the spindle.
8. The power tool of any one of claims 2 to 7, wherein the at least one control member has a first engaging portion, and the at least one limiting member has a second engaging portion engageable with the first engaging portion, such that the at least one control member is located in the locked position when the first and second engaging portions are engaged.
9. The power tool of claim 8, wherein one of the first and second engaging portions includes at least one protrusion, and the other includes at least one recess engageable with the at least one protrusion.
10. The power tool of claim 7, wherein one of the first and second limiting portions includes at least one protrusion, and the other includes at least one recess that can engage with the at least one protrusion; the at least one convex part is a polygonal convex part, and the at least one concave part is a polygonal concave part which can be clamped with the polygonal convex part; the limiting part comprises a sliding sleeve sleeved on the mandrel, and the sliding sleeve is provided with the second limiting part; the at least one control piece is pivoted to the body and can swing towards or away from the mandrel; the power tool further comprises an elastic member positioned between the seat part and the at least one control member, and the elastic member is propped against the at least one control member so that the at least one control member normally swings towards the mandrel; the control piece is provided with a first clamping part, the limiting piece is further provided with a second clamping part which can be clamped with the first clamping part, and when the first clamping part and the second clamping part are clamped, the control piece is positioned at the locking position; one of the first clamping part and the second clamping part comprises at least one convex part, and the other clamping part comprises at least one concave part which can be clamped with the at least one convex part; the at least one convex part is integrally arranged on the convex block of the at least one control part, and the at least one concave part is an annular groove annularly arranged on the sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375497.3U CN209831554U (en) | 2019-03-22 | 2019-03-22 | Power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920375497.3U CN209831554U (en) | 2019-03-22 | 2019-03-22 | Power tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209831554U true CN209831554U (en) | 2019-12-24 |
Family
ID=68907512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920375497.3U Expired - Fee Related CN209831554U (en) | 2019-03-22 | 2019-03-22 | Power tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209831554U (en) |
-
2019
- 2019-03-22 CN CN201920375497.3U patent/CN209831554U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |