TWM588611U - Spindle locking structure of power tool - Google Patents

Abstract

The present invention relates to a mandrel locking structure of a power tool. The main structure includes a main body. A rotating power part, a positioning seat, a rotating positioning component, and a mandrel connected to the rotating power part are defined in the main body. The mandrel fixing part is defined with a positioning fixing part corresponding to the engaging mandrel fixing part, and a sliding limit slot is defined on the positioning seat. The sliding limit slot includes a locking part, an unlocking part and a stop The rotating positioning component is provided with a flange positioning portion slidingly arranged in the sliding limit groove, and an elastic element is provided between the rotating positioning component and the main body. In this way, the user can push the rotary positioning assembly and allow the flange positioning part to be aligned with the locking part, so as to snap the positioning fixing part on the mandrel fixing part to prevent the rotation of the mandrel, which is convenient and fast Replace consumables.

Description

Locking structure of mandrel of power tool

The present invention is to provide a mandrel locking structure of a power tool, especially a mandrel locking structure of a power tool that is more convenient and fast to use.

Press, when assembling items or repairing machinery, will always use a variety of hand tools, however, there are so many types of hand tools, it is impossible for all sizes or types of hand tools to be manufactured individually. Appearance, so there are various hand tools that can replace consumables.

For example, the new patent certificate No. M571289 “Rotating Tool” of the Republic of China reveals that the function of restricting the rotation of the mandrel is disclosed by using a restricting member, but no matter what method is used, you need to use both hands to fix it, such as the Republic of China In the new patent certificate number M571289 "Rotating Tool", one of the hands is needed to press the restrictor, and the other hand is used to turn the chuck. When the user turns the chuck, the user needs to press the restrictor at any time, which is equal to the limit The position of one of the hands does not allow the user to perform the replacement operation with the most convenient gesture, which causes the hand tool to be difficult to be fixed when the replacement is performed, thus increasing the trouble of replacement.

Therefore, how to solve the problems and deficiencies of the above-mentioned practice is the one where the applicants of this new type and the relevant manufacturers engaged in this industry are desperate to study the direction of improvement.

Therefore, in view of the above-mentioned deficiencies, the applicant of this new type has collected relevant information, evaluated and considered through multiple parties, and based on years of experience accumulated in this industry, through continuous trial and modification, it has been designed to be faster and more convenient to use. The new patent of the power tool mandrel locking structure.

The main purpose of the present invention is to use the rotation positioning component and the positioning seat to fix the rotation effect of the mandrel, so that the user can replace the consumables in the most convenient way, thereby improving the efficiency and convenience in use.

In order to achieve the above purpose, the main structure of the new model includes: a main body, a set in the main body Inner rotating power part, a mandrel penetrating the main body and connected with the rotating power part, a mandrel fixing part defined on the mandrel, a positioning seat provided on the main body, at least one defined on the positioning seat The sliding limit groove on the top, a rotary positioning component movably provided on the main body, a positioning fixed part provided on the rotary positioning component and corresponding to the fixed part of the mandrel, and a sliding fixed part provided on the rotary positioning component A flange positioning part in the sliding limit groove and an elastic element provided at the side of the rotary positioning component and at both ends respectively contacting the main body and the rotary positioning component, wherein the sliding limit groove includes a lock provided on the positioning seat Part, an unlocking part provided on the positioning seat and located on the side of the locking part, a stop part provided on the positioning seat and located between the locking part and the unlocking part, and a locking part provided on the positioning seat and the locking part and The passage portion where the stop portion communicates.

With the above structure, when the user needs to replace the consumables, the rotary positioning component can be pushed, and the flange positioning part in the rotary positioning component can be turned into the locking part of the sliding limit groove along the channel part, and the elastic element can be used to give The blocking effect of the pressure and the stop part allows the flange positioning part to be limited to the locking part, and when the flange positioning part is located in the locking part, the positioning fixing part will be correspondingly snapped on the mandrel fixing part, due to the rotating positioning assembly It has been fixed on the positioning seat by the flange positioning part, so it will not rotate, and then the mandrel is also fixed on the positioning seat by the positioning fixing part and the mandrel fixing part and cannot rotate. At this time, the user can hold it in one hand Holding the main body and changing the consumables with one hand allows users to use the most convenient way to replace the consumables, which is more convenient and efficient in use.

After the replacement is completed, the user can push the rotary positioning assembly again, so that the flange positioning portion can pass the stop portion and enter the unlocking portion along the channel portion, and also through the pressure given by the elastic element and the blocking effect of the stop portion The flange positioning part is limited to the unlocking part. At this time, the positioning fixing part will be detached from the mandrel fixing part to release the fixing effect of the mandrel. The mandrel can be rotated by the rotating power part to allow the user to continue Normal use.

With the above technology, it is possible to break through the troublesome problem when replacing consumables of conventional hand tools, and achieve the practical progress of the above advantages.

1‧‧‧Main

2‧‧‧rotating power parts

21‧‧‧Power Locking Department

3‧‧‧mandrel

31‧‧‧Mandrel locking part

32‧‧‧Spindle fixing part

33‧‧‧Mandrel thread

4‧‧‧Positioning seat

41‧‧‧Sliding limit groove

411‧‧‧Locking Department

412‧‧‧stop

413‧‧‧Unlocking Department

414‧‧‧Channel Department

5‧‧‧Rotating positioning assembly

51‧‧‧rotating seat

511‧‧‧ Anti-slip part

52‧‧‧Locating parts

521‧‧‧Flange positioning

522‧‧‧Positioning fixed part

53‧‧‧Rotary fixing

6‧‧‧Elastic element

7‧‧‧Clamping and fixing components

71‧‧‧Clamp firmware

72‧‧‧Clamping driving parts

721‧‧‧Clamping thread part

722‧‧‧Pulling part

The first figure is a perspective view of a preferred embodiment of the new model.

The second figure is an exploded view of the preferred embodiment of the new model.

The third figure is another exploded view of the preferred embodiment of the new model.

The fourth figure is a perspective view of the positioning seat of the new preferred embodiment.

The fourth figure A is a schematic diagram of the movement of the preferred embodiment of the present invention.

The fifth figure is a schematic view of the lock of the preferred embodiment of the new model (1).

Fig. 5A is a schematic diagram of movement of the preferred embodiment of the new model (1).

The sixth figure is a schematic diagram (2) of the lock of the new preferred embodiment of the present invention.

The sixth figure A is a schematic diagram of movement of the preferred embodiment of the new model (2).

The seventh figure is a schematic diagram (3) of the lock of the new preferred embodiment of the present invention.

The eighth figure is a schematic diagram (1) of unlocking of the new preferred embodiment.

The ninth figure is a schematic diagram (2) of unlocking of the new preferred embodiment of the present invention.

In order to achieve the above-mentioned objectives and effects, the technical means and structure adopted by the present invention, the drawings and details of the preferred embodiment of the present invention are described in detail below. The features and functions are as follows, and Poli fully understands.

Please refer to the first picture to the fourth picture, which is a perspective view of a preferred embodiment of the present invention to a perspective view of the positioning seat. It can be clearly seen from the figure that the new model includes: a main body 1; The rotating power part 2 in this embodiment is a main shaft with a driving force (that is, a main shaft connected to a power source and rotatable); a mandrel 3 threaded on the main body 1, the mandrel 3 will be connected to the rotating power member 2 to be driven by the rotating power member 2 to rotate, and in this embodiment, the mandrel 3 has a mandrel locking portion 31, and the rotating power member 2 has a Corresponding to the power locking portion 21 of the locking mandrel locking portion 31, thereby connecting the mandrel 3 to the rotating power member 2; a mandrel fixing portion 32 defined on the mandrel 3, the mandrel fixing portion 32 is A plurality of fixed planes formed on the mandrel 3, in this embodiment, each fixed plane will form a regular hexagonal shape; a positioning seat 4 provided on the body 1 and located on one side of the mandrel 3; at least A sliding limiting groove 41 formed on the positioning seat 4, and the sliding limiting groove 41 includes a locking portion 411 formed on the positioning seat 4, and an unlocking portion formed on the positioning seat 4 and located on the side of the locking portion 411 413. A stop portion 412 formed on the positioning seat 4 between the locking portion 411 and the unlocking portion 413, and a channel portion 414 communicating with the unlocking portion 413 and the locking portion 411, respectively, can be matched with the fourth figure, The sliding limit groove 41 will form a similar shape, and the position of the locking portion 411 will be lower than that of the unlocking portion 413; a rotary positioning assembly 5 movably provided on the main body 1, and 5 rotary positioning assemblies There is a rotating base 51 and a positioning member 52. The rotating base 51 is movably arranged on the main body 1. The positioning member 52 is fixed in the rotating base 51 through two rotating fixing members 53 which are penetrated on the rotating base 51; at least one A flange positioning portion 521 provided on the positioning member 52. The flange positioning portion 521 is a protrusion formed by the positioning member 52 in this embodiment, and is slidably disposed in the sliding limit groove 41, thereby passing the protrusion The edge positioning portion 521 movably connects the positioning member 52 and the rotating base 51 to the main body 1; an anti-slip portion 511 formed on the rotating base 51; a positioning fixing portion 522 provided on the positioning member 52, and the positioning fixing portion 522 is located at In this embodiment, a serrated surface formed at the end of the positioning member 52 and corresponding to the engaging mandrel fixing portion 32; an elastic element 6 provided on the main body 1 and opposing the main body 1 and the rotation positioning assembly 5 at both ends; And a clamping and fixing assembly 7 disposed at the end of the mandrel 3 facing away from the rotating power member 2, and the clamping and fixing assembly 7 includes a clamping member 71 threaded on the mandrel 3, and a movable member disposed on the mandrel 3 The clamping and driving member 72 is driven by the clamping member 71, and in this embodiment, the clamping and driving member 72 has a clamping screw portion 721, and the mandrel 3 has a mandrel corresponding to the locking clamping screw portion 721 The threaded portion 33 allows the gripping driving member 72 to be locked on the mandrel 3, and the gripping driving member 72 has two triggering portions 722 that can be operated with a wrench.

Through the above description, the structure of the present technology can be understood, and according to the corresponding cooperation of this structure, users can achieve the advantage of quickly replacing the consumables in the most convenient way, and the detailed explanation will be described below.

Please also refer to the first figure to the ninth figure, which are the perspective view to the unlocking schematic diagram (2) of the preferred embodiment of the present invention. When the above components are assembled, it can be clearly seen from the figure that due to the mandrel 3 will be fixedly connected to the rotating power member 2 through the mandrel locking portion 31 and the power locking portion 21 on the rotating power member 2, so the rotating power member 2 can be driven to rotate by the rotating power member 2, and because the rotating power member 2 Because it is a main shaft with driving force, there is no fixed effect. Therefore, even if it is not actuated, if the user goes to manually rotate the mandrel 3, it will cause the mandrel 3 to rotate.

Therefore, when the user needs to replace the consumables in the clamping and fixing assembly 7, they can cooperate with the fourth to seventh figures, and first push the rotating base 51 in the direction of the main body 1, and because the positioning member 52 and the rotating base 51 Has been connected to each other by the rotation fixing member 53, so the rotating seat 51 will drive the positioning member 5 2 Squeeze the elastic element 6 and move toward the main body 1 direction, at the same time can match the fourth A, fifth A, and sixth A shown (the fourth A, fifth A, And FIG. 6A are schematic diagrams of the movement of the flange positioning portion 521 in the sliding limiting groove 41), which will cause the flange positioning portion 521 on the positioning member 52 to disengage from the position of the unlocking portion 413 in the positioning seat 4 and pass the stop The blocking portion 412 blocks the entry into the channel portion 414, and the user can rotate the rotating seat 51 in conjunction with the auxiliary effect of the anti-slip portion 511, so that the flange positioning portion 521 on the positioning member 52 can move along the channel portion 414 to lock Above the portion 411, after moving above the locking portion 411, the user can release the rotating base 51, and the positioning member 52 and the rotating base 51 will move away from the main body 1 through the elastic force given by the elastic element 6, because The position of the locking portion 411 is farther away from the main body 1 than the position of the unlocking portion 413, so when the flange positioning portion 521 moves into the locking portion 411, the rotary positioning assembly 5 will be further away from the main body 1, so that the positioning and fixing portion 522 can be stuck It fits on the mandrel fixing portion 32.

Since the flange positioning portion 521 will contact the locking portion 411 via the elastic force given by the elastic element 6 at this time, the stop portion 412 will be located at the side of the flange positioning portion 521, that is, it can cooperate with the blocking effect of the stop portion 412, The flange positioning portion 521 is completely restricted to the locking portion 411, so that the flange positioning portion 521 cannot move, and then the positioning member 52 and the rotating seat 51 are fixed to the main body 1 so that it cannot rotate arbitrarily, and it is known from the above At this time, the positioning fixing portion 522 on the positioning member 52 will be engaged with the mandrel fixing portion 32, so when the positioning member 52 cannot rotate arbitrarily, the mandrel 3 will also pass through the positioning fixing portion 522 and the mandrel fixing portion 32 Engagement effect, unable to rotate.

In this way, the user can release the hand for fixing the rotation effect of the mandrel 3, so that the user can hold the body 1 in one hand and use a wrench or other tools to rotate the gripping driving member 72 in the gripping and fixing assembly 7 in one hand , In the most convenient way to replace the consumables, you can quickly and easily replace the consumables, and in this embodiment, the user can use a wrench or other tools to push the trigger on the gripper 72 In part 722, since the gripping driving member 72 and the mandrel 3 are locked with each other by the gripping screw portion 721 and the mandrel screwing portion 33, the gripping driving member 72 can be moved to the direction away from the centrifugal shaft 3 during rotation, and The clamping member 71 is loosened. In this embodiment, the clamping member 71 is a three-jaw chuck. When the clamping driving member 72 moves in the direction of the mandrel 3, the clamping member 71 is pushed to tighten the lock, thereby fixing the consumable , And when the clamping drive 72 moves in the direction of the centrifugal axis 3, it will loosen the clamping member 71, so that the clamping member 71 no longer clamps the consumables, but the fixing method is not limited, the user can use the above Action to replace the required consumables.

When the replacement is completed, as shown in the eighth and ninth figures, the user can push the rotating base 51 to drive the positioning member 52 in the direction of the main body 1, so that the positioning fixing portion 522 can be separated from the mandrel fixing portion 32 , And let the flange positioning part 521 disengage from the locking part 411 and pass over the stop part 412 into the channel part 414, and then rotate the rotating base 51 in the opposite direction to the locking (if clockwise when locking, unlocking is Rotate counterclockwise, but it is not limited) You can move the flange positioning portion 521 to the side of the unlocking portion 413, and then release the rotating seat 51 to allow the positioning member 52 to move away from the elastic force given by the elastic element 6 The direction of the main body 1 moves, and at the same time, the flange positioning portion 521 is pressed against the unlocking portion 413, and the flange positioning portion 521 is restricted to the unlocking portion 413 in cooperation with the stop effect of the stop portion 412, so that the flange positioning portion 521 cannot Move arbitrarily, and since the unlocking portion 413 is closer to the main body 1 than the locking portion 411, when the flange positioning portion 521 is located in the unlocking portion 413, the positioning and fixing portion 522 will be closer to the main body 1 and will not be locked in the heart The shaft fixing portion 32 allows the mandrel 3 to continue to rotate with the power given by the rotating power member 2 so that the user can continue to use it.

It can be seen from the above content that the user can achieve the effect of fixing the mandrel 3 so that it cannot rotate by simply pushing and rotating, so that the user no longer needs to continue to use one of the hands to fix the mandrel 3 , Which in turn allows users to replace consumables in the most convenient way to achieve the advantages of improving efficiency and convenience when replacing consumables.

However, the above is only the preferred embodiment of the new model, and it does not limit the patent scope of the new model. Therefore, all the simple modifications and equivalent structural changes caused by the use of the description and drawings of the new model should be the same. Included in the patent scope of this new model, it is jointly given to Chen Ming.

In summary, the mandrel locking structure of the power tool of this new type is indeed a new type with excellent practicability in order to achieve its efficacy and purpose, so it is in compliance with the requirements of the new patent application. After submitting the application, I hope that the review committee will grant this new model as soon as possible to protect the applicant's hard work. If there is any doubt in the review committee of the Jun Bureau, please send me a letter and give instructions. The applicant will try his best to cooperate and feel virtuous.

1‧‧‧Main

3‧‧‧mandrel

31‧‧‧Mandrel locking part

32‧‧‧Spindle fixing part

33‧‧‧Mandrel thread

4‧‧‧Positioning seat

51‧‧‧rotating seat

52‧‧‧Locating parts

521‧‧‧Flange positioning

53‧‧‧Rotary fixing

6‧‧‧Elastic element

71‧‧‧Clamp firmware

72‧‧‧Clamping driving parts

721‧‧‧Clamping thread part

722‧‧‧Pulling part

Claims (10)

A mandrel locking structure of a power tool mainly includes: a main body; a rotating power part, the rotating power part is arranged in the main body; and a mandrel, the mandrel is penetrated on the main body and connected with the rotating power part Connected to drive rotation through the rotating power member; a mandrel fixing portion, the mandrel fixing portion is defined on the mandrel; a positioning seat, the positioning seat is provided on the main body, and is located on the mandrel At one side; at least one sliding limit slot, the sliding limit slot is defined on the positioning seat, and the sliding limit slot includes a locking portion disposed on the positioning seat, a positioning portion is provided on the positioning seat and An unlocking part located at the side of the locking part, a stop part provided on the positioning seat and located between the locking part and the unlocking part, and a locking part provided on the positioning seat and connected with the locking part and the unlocking part A communicating channel part; a rotary positioning component, which is movably arranged on the main body, and corresponds to the position of the positioning seat; a positioning fixing part, which is located on the rotating positioning component, and is connected For correspondingly engaging the mandrel fixing part to prevent the rotation of the mandrel; a flange positioning part, the flange positioning part is provided on the rotary positioning component, and is slidingly arranged in the sliding limit groove; and An elastic element, the elastic element is provided at the side of the rotary positioning assembly and the two ends respectively interfere with the main body and the rotary positioning assembly, when the flange positioning portion is positioned at the locking portion by the elastic force given by the elastic element, the The positioning fixing part is engaged with the mandrel fixing part, and when the flange positioning part is positioned on the unlocking part through the elastic force given by the elastic element, the positioning fixing part is disengaged from the mandrel fixing part. The mandrel locking structure of the power tool as described in item 1 of the patent application scope, wherein the rotation positioning assembly is provided with a slip prevention part. The mandrel locking structure of a power tool as described in item 1 of the patent application scope, wherein the rotary positioning assembly has a rotary seat and a positioning member, the rotary seat is movably disposed on the main body, and the positioning member is disposed on the In the rotating seat, the positioning fixing part and the flange positioning part are provided on the positioning member. The mandrel locking structure of the power tool as described in item 3 of the patent application scope, wherein the rotating base is provided with at least one rotating fixing member, and the rotating base and the positioning member are fixed to each other via the rotating fixing member. The mandrel locking structure of a power tool as described in item 1 of the patent scope, wherein the mandrel has a mandrel locking portion, and the rotating power member has a corresponding power lock to lock the mandrel locking portion Solid part. The mandrel locking structure of the power tool as described in item 1 of the patent application scope, wherein the mandrel is provided with a clamping and fixing component. The mandrel locking structure of the power tool as described in item 6 of the patent application scope, wherein the clamping and fixing component includes a clamping member and a clamping driving member, and the clamping member is movably disposed at one end of the mandrel, The clamping and driving member is movably arranged on the mandrel and drives the clamping member to perform clamping operation. The mandrel locking structure of the power tool as described in item 7 of the patent application scope, wherein the gripping driving member has a gripping threaded portion. The mandrel locking structure of the power tool as described in item 8 of the patent application scope, wherein the mandrel has a mandrel thread portion correspondingly locking the clamping thread portion. The mandrel locking structure of the power tool as described in item 7 of the patent application scope, wherein the gripping driving member has at least one triggering portion.

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