CN218384949U

CN218384949U - Button assembly and electric tool

Info

Publication number: CN218384949U
Application number: CN202222242387.4U
Authority: CN
Inventors: 洪小云; 俞倩
Original assignee: Zhejiang Chengkang Machinery & Electrical Product Manufacturing Co ltd; Ningbo Deli Tools Co Ltd
Current assignee: Zhejiang Chengkang Machinery & Electrical Product Manufacturing Co ltd; Ningbo Deli Tools Co Ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-01-24
Anticipated expiration: 2032-08-22

Abstract

The utility model relates to a button switch field refers in particular to a button subassembly and electric tool. It is installed on the casing for battery pack in the fixed casing, its characterized in that includes: the trigger button is provided with a pin shaft cavity, through holes are formed at two ends of the pin shaft cavity, and a clamping boss used for clamping the battery pack is arranged at the front end of the pin shaft cavity; the pin shaft is movably arranged in the through hole; wherein, the round pin axle has at least: the two positioning columns are movably arranged at the inner and outer ends of the through hole and respectively penetrate out of the end faces of the corresponding through holes; the first elastic part is arranged between the positioning columns and abutted against the positioning columns, so that the outer end parts of the positioning columns have the tendency of extending out of the end faces of the through holes. The utility model discloses a structure can reduce the flow of assembly, improves assembly efficiency. The shell is not provided with the jack any longer, so that the shell keeps flat. The reference column structure of both sides is the same, only needs to rotate certain angle can become the utility model provides a the other end of round pin axle is convenient for produce and the replacement.

Description

Button assembly and electric tool

Technical Field

The utility model relates to a button switch field refers in particular to a button subassembly and electric tool.

Background

The button need wear to be equipped with a round pin in the button middle part, and the round pin stretches out the back in the part of button both sides inserts corresponding mounting groove respectively, is about to assemble the button to another subassembly on. After assembly, the pin also serves as the pivot axis for the button, which pivots about the pin so that the button can be depressed.

The prior technical scheme has the following defects:

1. in order to facilitate installation of the existing button, a hole is usually formed in the side face of a position where the button needs to be arranged, so that a pin extends into the hole and penetrates through the button to be placed into a hole or a groove at the other end, the assembly flow is increased in the mode, and the assembly efficiency is limited.

2. The surface of the product may be left with insertion holes for the pins to be inserted into, thereby damaging the flat surface of the product and reducing the aesthetic appearance of the product.

3. However, the contour of the portion where the push button is provided is different from each other, and in order to provide the insertion hole into which the pin is inserted, it is sometimes necessary to provide a boss portion to increase the wall thickness of the portion and to ensure a sufficient opening area. Meanwhile, in order to avoid the excessive thinning of the wall thickness around the hole after the hole is opened, the volume of the convex part needs to be increased in advance to leave a margin. Since the contours of the portions where the buttons are provided are different from each other, the structure of the protruding portion to be provided also changes according to the contour of the portion where the buttons are provided, and thus the material to be used increases.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a button subassembly and electric tool convenient to assembly.

The utility model aims at realizing the following steps:

a button assembly for a power tool mounted to a housing for securing a battery pack within the housing, comprising:

the trigger button is provided with a pin shaft cavity, through holes are formed at two ends of the pin shaft cavity, and a clamping boss used for clamping the battery pack is arranged at the front end of the pin shaft cavity;

the pin shaft is movably arranged in the through hole;

wherein, the round pin axle has at least:

the two positioning columns are movably arranged at the inner and outer ends of the through hole and respectively penetrate out of the end faces of the corresponding through holes;

the first elastic part is arranged between the positioning columns and abutted against the positioning columns, so that the outer end parts of the positioning columns have the tendency of extending out of the end faces of the through holes.

Preferably, a protruding block is formed at the end part, facing the first elastic part, of the positioning column, and one end part of the elastic part is sleeved on the protruding block.

Preferably, a side hole is formed in the side face of the through hole, and the first elastic piece and the positioning column enter the through hole through the side hole.

Preferably, an extension part is formed on the side wall of the positioning column in a protruding mode, and the extension part is movably abutted against the side wall of the side hole.

Preferably, one end of the trigger button is provided with a pressing part which protrudes out of the outer wall of the shell.

Preferably, the rear end of the trigger button is provided with a first limiting column and a second limiting column;

the limiting column is positioned at the lower side of the clamping boss;

the limiting column is located at the bottom end of the trigger button.

Preferably, a supporting column is arranged on the inner wall of the rear end of the trigger button and is used for being connected with a second elastic piece; the end part of the second elastic part abuts against the shell and is used for enabling the clamping boss to clamp the side wall of the battery pack.

A power tool, comprising: the battery pack is arranged in the shell, a fixing sleeve is arranged on the shell, and the button assembly of the electric tool is arranged on the fixing sleeve;

the fixed sleeve is formed with a convex part, a mounting hole is formed in the convex part, and the trigger button is arranged in the mounting hole;

and a fixing groove is arranged in the mounting hole, and the position of the fixing groove is matched with that of the pin shaft cavity.

Preferably, the battery pack is provided with a locking groove, the clamping boss can be placed in the locking groove, a locking hole is formed in the shell, the locking hole is aligned with the locking groove, and the clamping boss can penetrate through the locking hole;

the shell is provided with a first groove matched with the contour of the pin shaft cavity in shape;

the shell is provided with a second groove.

Preferably, a first notch is formed at the bottom end of the fixed sleeve, and a second notch corresponding to the first notch is formed at the bottom end of the shell;

an annular groove is formed at the bottom end of the battery component.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses a round pin axle comprises two reference columns and a spring, and two reference columns set up in the both sides of spring, can apply external force compression spring through given reference column, can reduce the length of round pin axle to make the round pin axle of compression directly place to set for on the position, no longer when applying external force to given reference column, the round pin axle loses external force, and the spring outwards promotes the reference column, makes the reference column get into in the groove or the hole of setting for the position, accomplishes the joint. For the mode at the side trompil of installation site, the utility model discloses flow when the structure that adopts can reduce the assembly improves assembly efficiency.

2. The jack is no longer arranged on the shell, so that the shell can be kept flat and beautiful.

3. The reference column structure of both sides is the same, only needs to rotate certain angle can become the utility model provides a the other end of round pin axle is convenient for produce and the replacement.

4. Be connected through the elastic component between reference column and the reference column, compare in the form of a whole round pin, the utility model discloses a round pin axle is guaranteeing that the elastic component provides under sufficient elastic prerequisite, and the need not crooked be in on the same axis between reference column and the reference column to the axiality requirement of fashioned through-hole reduces on the button, under the unchangeable prerequisite of maintaining current technology, improves the yield, save material.

5. Compare in the mode of the side trompil at the installation site, when meetting the wall thickness and not being enough seting up and supply reference column male slotted hole, originally using novel can be to furthest utilize the wall thickness to reduce the required thickness that increases of bellying, save material.

Drawings

Fig. 1 is a structural diagram of the trigger button of the present invention.

Fig. 2 is a schematic structural view of the trigger button of the present invention when it is mounted on the electric power tool.

Fig. 3 is an exploded view of the trigger button and the securing sleeve of the present invention.

Fig. 4 is a partial sectional view of the trigger button of the present invention when it is mounted on the electric power tool.

Reference numerals: 1-a trigger button; 11-a pressing part; 12-a through hole;

2-a pin shaft cavity; 21-a side hole;

3-a pin shaft; 31-a locating post; 32-bumps; 33-a first elastic member; 34-an extension;

4, fixing a sleeve; 41-a boss; 42-mounting holes; 43-a fixed groove; 44-notch one;

5-a first limiting column;

6-support column; 61-elastic member two; 62-a second limit column;

7-clamping the boss;

8-a shell; 81-groove one; 82-groove two; 83-locking hole; 84-notch two;

9-a battery assembly; 91-locking groove; 92-annular groove.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, a button assembly of a power tool, which is mounted on a housing 8 for fixing a battery pack 9 in the housing 8, includes:

the trigger button 1 is provided with a pin shaft cavity 2, through holes 12 are formed at two ends of the pin shaft cavity 2, and a clamping boss 7 used for clamping a battery pack 9 is arranged at the front end of the trigger button;

the pin shaft 3 is movably arranged in the through hole 12;

wherein, round pin axle 3 has at least:

the two positioning columns 31 are movably arranged at the inner end and the outer end of the through hole 12 and respectively penetrate through the end surfaces of the corresponding through hole 12;

and the first elastic piece 33 is arranged between the positioning columns 31 and is abutted against the positioning columns 31, so that the outer end parts of the positioning columns 31 have the tendency of extending out of the end faces of the through holes 12.

The common button assembly mode is that after a pin is arranged to penetrate through a through hole 12 formed in the button, the pin is placed into a slotted hole formed in the mounting position, and the button is clamped on the mounting position. The button is connected with the installation part through only one pin, and the pin penetrating through the button also serves as a rotating shaft of the button, so that the button can rotate around the pin, and the function of controlling the state of the button can be realized.

And the utility model provides a reference column 31 has maintained the function among the prior art, and reference column 31 also can be with 1 joint of trigger button on the installation position after passing through-hole 12, and is provided with elastic component 33 between reference column 31 and the reference column 31, makes reference column 31 support all the time and leans on in the slotted hole that the installation position was seted up.

The through hole 12 of the button is made with a certain coaxiality, since the through hole 12 of the prior art also has a certain coaxiality requirement to ensure that the pin can pass through the through holes 12 at both sides of the button. Therefore, even the structure of the pin shaft 3 of the present invention is formed by connecting the positioning columns 31 on both sides with the first elastic member 33, when the positioning columns 31 are respectively inserted into the through holes 12, a certain coaxiality can be maintained between the positioning columns 31 at both ends.

The positioning posts 31 are connected with each other through the first elastic member 33, so that the positioning posts 31 and the other positioning posts 31 do not need to be completely aligned, and the positioning posts 31 can move within a certain range on the premise that the first elastic member 33 can support the positioning posts 31 at two ends. Therefore, use the utility model provides a to the axiality requirement between through-hole 12 during round pin axle 3 compare in more adopting the whole root round pin time to require lowerly to the axiality between through-hole 12, under the prerequisite that keeps current technology, can improve the yield, reduce the loss of material.

The side surface of the pin shaft cavity 2 is milled and formed with a side hole 21, the side hole 21 is positioned at the outer side of the pin shaft cavity 2, and the side surfaces of the through holes 12 positioned at the two ends of the pin shaft cavity 2 are not cut.

The side opening 21 switches on with the inside in round pin axle chamber 2, and the width of side opening 21 equals the diameter length of through-hole, and the length of side opening 21 equals the length in round pin axle chamber 2 to make reference column 31 and elastic component 33 can pass side opening 21, and round pin axle 3 can press reference column 31 owing to adopt elastic component 33 to connect the structure of both ends reference column 31, makes elastic component 33 shrink, shortens the total length of round pin axle 3, thereby makes round pin axle 3 can put into round pin axle chamber 2 through side opening 21.

As shown in fig. 2 and 3, a side hole 21 is opened on a side surface of the through hole 12, and a first elastic member 33 and the positioning column 31 enter the through hole 12 through the side hole 21, wherein the first elastic member 33 is a spring in this embodiment.

A convex block 32 is formed on one side, facing the first elastic part 33, of the positioning column 31, two ends of the first elastic part 33 are respectively sleeved on the convex blocks 32 on the positioning columns 31 at two ends, the outline of each convex block 32 is matched with the inner diameter of the first elastic part 33, so that the convex blocks 32 can limit movement of the first elastic part 33, two ends of the first elastic part 33 can always abut against the positioning column 31, elasticity is applied to the positioning column 31, the positioning column 31 can always abut against a slotted hole of an installation part, and the trigger button 1 is clamped on the installation part.

Round pin axle 3 wears to establish in round pin axle chamber 2, and round pin axle chamber 2 can restrict the position of elastic component 33, makes elastic component 33 flexible on the axis direction that only can follow round pin axle chamber 2 to make elastic component 33's elasticity can be more direct transmit to reference column 31 on.

And when the first elastic part 33 adopts a spring, the spring is limited in the pin shaft cavity 2, so that the spring cannot be bent too much due to different stress directions on two sides, and the phenomenon that the spring deforms too much and exceeds the elastic limit to lose elasticity is avoided.

As shown in fig. 2 and 3, the positioning column 31 is formed with an extending portion 34 protruding outward, and in the cross-sectional direction, the total length of the extending portion 34 does not exceed the length of the diameter of the positioning column 31, so that the positioning column 31 can be placed in the pin shaft cavity 2 at a certain angle, and the shape of the extending portion 34 cannot pass through the through hole 12, so that the positioning column 31 is limited in the pin shaft cavity 2, and the positioning column 31 cannot be taken out of the pin shaft cavity 2 through the through hole 12.

The extension portion 34 is located at one end of the protrusion 32, so that after the positioning column 31 extends out of the through hole 12, a sufficient length can be left to extend into a slot hole on the installation portion, and the trigger button 1 is clamped on the installation portion.

The extension 34 also increases the area against which the first elastic member 33 can abut, so that the elastic force can be better applied to the positioning column 31.

As shown in fig. 1 to 4, one end of the trigger button 1 is provided with a pressing portion 11, the pressing portion 11 is disposed at the lower end of the pin 3, and when a user presses the pressing portion 11, the trigger button 1 can rotate around the pin 3.

A supporting column 6 is arranged on the back of the pressing portion 4, and the supporting column 6 is used for connecting the second elastic member 61.

In this embodiment, the supporting column 6 is a cross-shaped cylinder, and the second elastic member 61 is a spring. The cross-column-shaped structure of the support column 6 can facilitate the sleeving of the spring, and the cross-column penetrating the inside of the spring facilitates the fixing of the position of the spring.

When a user presses the pressing part 11, the second elastic piece 61 is compressed; when the user no longer presses the pressing portion 11, the second elastic member 61 pushes the trigger button 1 to reset.

As shown in fig. 1-4, the rear end of the trigger button 1 is provided with a first limit post 5 and a second limit post 62;

spacing post 5 is located the downside of joint boss 7, and spacing post 5 plays the effect of restriction trigger button 1's turned angle, because when no external force is exerted on pressing the portion 11, trigger button 1 can receive the promotion of elastic component two 61, and form around the pivoted trend of the instantaneous time of round pin axle 3, along with trigger button 1's rotation, spacing post 5 also can with the surface contact at installation position to provide reaction force, restriction trigger button 1 continues to rotate. Therefore, the situation that the second elastic piece 61 is separated from the trigger button 1 and the pressing part 11 cannot be normally reset due to the fact that the rotating angle of the trigger button 1 is too large is avoided.

The bottom end of the trigger button 1 is provided with a second limiting column 62, and when a user presses the pressing part 11, the second limiting column 62 rotates along with the trigger button 1 until contacting with the surface of the installation part, so that the trigger button 1 is limited to continue rotating. The second elastic piece 61 is prevented from being compressed excessively to exceed the elastic limit due to excessive force applied by a user, so that the second elastic piece 61 loses elasticity.

As shown in fig. 1 to 4, an electric power tool includes a housing 8 and a battery pack 9 disposed in the housing 8, and further includes a button assembly of an electric power tool as described above.

As shown in fig. 1 to 4, a fixing sleeve 4 is sleeved on the lower side of the housing 8, a protruding portion 41 is formed on the fixing sleeve 4, a mounting hole 42 is formed in the protruding portion 41, the trigger button 1 is arranged in the mounting hole 42, a fixing groove 43 is formed in the mounting hole 42, and the position of the fixing groove 43 is matched with the position of the pin shaft cavity 2.

Because the wall thickness of the fixing sleeve 4 is not enough to provide the fixing groove 43 capable of accommodating the positioning column 31, the protruding portion 41 needs to be provided to increase the wall thickness, and the position of the fixing groove 43 matches with the position of the through hole 12, so as to ensure that the positioning column 31 can be accurately placed in the fixing groove 43, and therefore, the clamping connection between the trigger button 1 and the housing 8 is formed.

Owing to adopted the utility model provides a round pin axle 3's structure no longer need additionally set up on casing 8 and supply round pin male jack for can utilize the wall thickness of fixed cover 4 to set up fixed slot 43 when seting up fixed slot 43 and set up fixed slot 43, thereby reduced the required shaping height of bellying 41, reduced the use of material. Meanwhile, a through hole does not need to be formed in the fixed sleeve 4 or the shell 8, so that the product can keep a smooth appearance, and the attractiveness is improved.

As shown in fig. 1-4, battery pack 9 is provided with locking groove 91, locking groove 91 can be put into to joint boss 7, casing 8 shaping has locking hole 83, locking hole 83 aligns locking groove 91, joint boss 7 can pass locking hole 83 and put into locking groove 91, joint boss 7 and locking groove 91 meshing back, can restrict battery pack 9's removal, when the user pressed pressing portion 11, joint boss 7 can withdraw from locking groove 91, battery pack 9 no longer receives the restriction of joint boss 7, thereby can be free withdraw from casing 8, be convenient for the user to change electric tool's battery pack 9 at any time.

The housing 8 is provided with a first recess 81 having a shape matching the contour of the pin cavity 2, so that a portion of the pin cavity 2 can be accommodated inside the housing 8, thereby reducing the required increased wall thickness of the fixing sleeve 4 and reducing the material consumed by the protrusions 41.

The housing 8 is provided with a second groove 82, and the second groove 82 can leave enough space for arranging the second elastic element 61.

As shown in fig. 1-4, the first notch 44 is formed at the bottom end of the pouch 4, and the second notch 84 is formed at the bottom end of the housing 8 and is located corresponding to the first notch 44, and the first notch 44 can be aligned with the second notch 84.

The bottom end of the battery assembly 9 is formed with an annular groove 92, and a portion of the annular groove 92 is exposed through the first notch 44 and the second notch 84. Sometimes, when the pressing portion 11 is pressed, the battery pack 9 is not smoothly separated from the case 8. At this time, the user's finger can pass through the first notch 44 and the second notch 84 to contact the annular groove 92, so that the user can easily separate the battery assembly 9 from the housing 8 by external force while pressing the pressing portion 11.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A button assembly mounted on a housing (8) for securing a battery assembly (9) within the housing (8), comprising:

the trigger button (1) is provided with a pin shaft cavity (2), through holes (12) are formed at two ends of the pin shaft cavity (2), and a clamping boss (7) used for clamping a battery assembly (9) is arranged at the front end of the trigger button;

the pin shaft (3) is movably arranged in the through hole (12);

wherein the pin (3) has at least:

the two positioning columns (31) are movably arranged at the inner end and the outer end of the through hole (12) and respectively penetrate through the end surfaces of the corresponding through hole (12);

and the first elastic piece (33) is arranged between the positioning columns (31) and is abutted against the positioning columns (31), so that the outer end parts of the positioning columns (31) have the tendency of extending out of the end faces of the through holes (12).

2. The button assembly of claim 1,

a protruding block (32) is formed at the end part, facing the first elastic part (33), of the positioning column (31), and the end part of the first elastic part (33) is sleeved on the protruding block (32).

3. A push button assembly as claimed in claim 2, characterized in that the through hole (12) is laterally provided with a lateral hole (21), and the first resilient member (33) and the positioning post (31) enter the through hole (12) through the lateral hole (21).

4. A push button assembly as claimed in claim 3, characterized in that the positioning post (31) has an extension (34) formed by projecting from a side wall thereof, said extension (34) being movable against a side wall of the side hole (21).

5. A push-button assembly according to any of the claims 1 to 4, characterized in that,

one end of the trigger button (1) is provided with a pressing part (11), and the pressing part (11) protrudes out of the outer wall of the shell (8).

6. A push button assembly according to any of the claims 1 to 4,

the rear end of the trigger button (1) is provided with a first limiting column (5) and a second limiting column (62);

the first limiting column (5) is positioned on the lower side of the clamping boss (7);

the second limiting column (62) is located at the bottom end of the trigger button (1).

7. A push button assembly according to any of the claims 1 to 4,

a support column (6) is arranged on the inner wall of the rear end of the trigger button (1), and the support column (6) is used for connecting a second elastic piece (61); the end part of the second elastic part (61) abuts against the shell (8) and is used for enabling the clamping boss (7) to clamp the side wall of the battery pack (9).

8. An electric power tool, characterized by comprising: a housing (8) and a battery pack (9), the battery pack (9) being mounted in the housing (8), the housing (8) having a pouch (4) mounted thereon, the pouch (4) having a button assembly of the power tool as claimed in any one of claims 1 to 7 mounted thereon;

the fixing sleeve (4) is formed with a convex part (41), a mounting hole (42) is formed in the convex part (41), and the trigger button (1) is arranged in the mounting hole (42);

a fixing groove (43) is arranged in the mounting hole (42), and the position of the fixing groove (43) is matched with that of the pin shaft cavity (2).

9. The power tool as claimed in claim 8, wherein the battery pack (9) is provided with a locking groove (91), the latch boss (7) can be placed in the locking groove (91), the housing (8) is formed with a locking hole (83), the locking hole (83) is aligned with the locking groove (91), and the latch boss (7) can pass through the locking hole (83);

the shell (8) is provided with a first groove (81) which is matched with the outline of the pin shaft cavity (2) in shape;

the shell (8) is provided with a second groove (82).

10. A power tool according to claim 9, characterized in that the bottom end of the said cover (4) is formed with a first notch (44), and the bottom end of the said housing (8) is formed with a second notch (84) corresponding to the position of the said first notch (44);

the bottom end of the battery component (9) is formed with an annular groove (92).