CN216161644U

CN216161644U - Anti-toppling switch

Info

Publication number: CN216161644U
Application number: CN202121888987.7U
Authority: CN
Inventors: 毛勇
Original assignee: Dongguan Dewo Electronic Technology Co ltd
Current assignee: Dongguan Dewo Electronic Technology Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-01
Anticipated expiration: 2031-08-12

Abstract

The utility model relates to the technical field of anti-toppling switches, in particular to an anti-toppling switch which comprises a shell, wherein a micro switch module, a pressure rod used for jacking and triggering the micro switch module and a gravity ball used for jacking the pressure rod are arranged in the shell; the gravity ball can be prevented from being clamped on the gap between the pressure rod and the shell, and can quickly and sensitively roll to the position of the pressure opening and downwards press the pressed part.

Description

Anti-toppling switch

The technical field is as follows:

the utility model relates to the technical field of anti-toppling switches, in particular to an anti-toppling switch.

Background art:

the anti-toppling switch can also be called as a fall switch, such as a fan heater, an electric fan and other household appliances, the anti-toppling switch is generally arranged on equipment, when the equipment inclines or falls, a gravity ball in the anti-toppling switch inclines and displaces along with a shell under the action of gravity, the gravity ball breaks away from the gravity ball to stop jacking a pressure rod, a microswitch button of a microswitch module is enabled to reset upwards, the on-off state of the microswitch module is sent and switched, so that a power supply is automatically cut off when the equipment inclines or falls, and the use safety of the equipment is improved.

However, the existing anti-toppling switch has some insufficient places when in use, for example, the chinese utility model patent with application number CN200820178332.9 discloses an anti-toppling switch, although it can automatically cut off the power supply when the equipment is inclined or fallen down, its pressure part is flat, and the gravity ball is easily blocked on the gap between the pressure bar and the casing, thereby affecting normal use.

The utility model has the following contents:

the utility model aims to provide an anti-toppling switch aiming at the defects in the prior art, which can prevent a gravity ball from being clamped on a gap between a pressure rod and a shell, and can quickly and sensitively roll to a pressure opening and downwards press a pressure part.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an anti-overturning switch, includes the casing, be equipped with the micro-gap switch module in the casing, be used for the roof pressure and trigger the depression bar of micro-gap switch module, be used for the gravity ball of roof pressure depression bar, the one end that the depression bar receives gravity ball roof pressure is equipped with the pressurized portion, and the pressurized portion includes the pressurized hemisphere face, sets up in the pressurized plane at pressurized hemisphere face top.

The further improvement of the scheme is that the bottom of the pressed part is hollow and is provided with a U-shaped connecting part, and the pressed part is connected with the pressing rod through the U-shaped connecting part.

The further improvement of the scheme is that the shell is integrally formed with a hinge groove, the pressure lever comprises a hinge part, and the hinge part of the pressure lever is rotatably connected in the hinge groove.

The further improvement to above-mentioned scheme does, the depression bar includes the body of rod, the body of rod includes first pole portion, and the one end downwardly extending shaping of first pole portion has second pole portion, and the one end upwardly extending shaping of second pole portion has third pole portion, and the one end upwardly extending shaping of third pole portion has fourth pole portion, and the portion that bears sets up on fourth pole portion to one side.

The utility model further improves the scheme that the micro-switch module comprises an upper cavity arranged at the top in the shell, a lower cavity arranged at the bottom in the shell and a pressure port arranged in the middle in the shell, wherein the upper cavity is communicated with the lower cavity through the pressure port, a gravity ball is arranged in the upper cavity, the micro-switch module is arranged in the lower cavity and comprises a micro-switch button, one end of a pressure rod is hinged on the lower cavity, the other end of the pressure rod is positioned at the position of the pressure port, and the middle of the pressure rod is abutted against the micro-switch button.

The pressing rod is provided with a pressing part for pressing the microswitch button at a position close to the hinged end, and the pressing part is of an inverted V-shaped structure.

The further improvement to above-mentioned scheme does, go up the cavity and include first upper chamber portion, be located the second upper chamber portion of first upper chamber portion below, first upper chamber portion is cylindric structure, and the second upper chamber portion is the round platform column structure that the opening gradually diminishes from top to bottom in proper order, is concentric circles between first upper chamber portion and the second upper chamber portion and distributes, and the diameter of first upper chamber portion is greater than the diameter of second upper chamber portion open-top.

The technical proposal is further improved in that the pressure port is of a circular structure, and the diameter of the gravity ball is larger than that of the pressure port; when the device is in a normal use state, the gravity ball is positioned at the position of the pressure opening, the bottom of the gravity ball protrudes downwards into the lower cavity and pushes the pressure part downwards, and the pressure rod rotates downwards and pushes the microswitch button downwards.

The further improvement of the scheme is that when the equipment is in an inclined state, the gravity ball stops downwards pressing the pressed part of the pressing rod, the pressing rod rotates upwards, and the pressed part upwards protrudes from the position of the pressing opening into the second upper cavity.

The further improvement to above-mentioned scheme does, the casing includes half preceding shell, half back shell, is equipped with the public end of buckle on the half preceding shell, is equipped with the female end of buckle on the half back shell, is connected through the mode of buckle connection between half preceding shell, the half back shell.

The utility model has the beneficial effects that: the utility model provides an anti-toppling switch which comprises a shell, wherein a micro switch module, a pressure rod used for jacking and triggering the micro switch module and a gravity ball used for jacking the pressure rod are arranged in the shell, one end of the pressure rod jacked by the gravity ball is provided with a pressed part, and the pressed part comprises a pressed hemispherical surface and a pressed plane arranged at the top of the pressed hemispherical surface;

because the cambered surface has smaller friction force and easy rolling property, when the gravity ball rolls and contacts the pressed hemispherical surface of the pressed part, the gravity ball can easily push the pressed part and enable the pressed part to rotate to the position of the pressure port, the gravity ball can be prevented from being clamped on a gap between the pressure rod and the shell, and the gravity ball can quickly and sensitively roll to the position of the pressure port and downwards press the pressed part.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic cross-sectional structure of the present invention.

FIG. 4 is a schematic cross-sectional view of another embodiment of the present invention.

FIG. 5 is a schematic view of the structure of the compression bar of the present invention.

FIG. 6 is a schematic view of another angle of the compression bar of the present invention.

Description of reference numerals: the locking device comprises a shell 1, a front half shell 11, a rear half shell 12, a hinge groove 13, a mounting hole 14, an upper cavity 2, a first upper cavity 21, a second upper cavity 22, a lower cavity 3, a pressure opening 4, a gravity ball 5, a micro switch module 6, a micro switch button 61, a pressure lever 7, a pressure part 71, a pressure semi-spherical surface 711, a pressure plane 712, a U-shaped connecting part 713, a reinforcing rib 72, a hinge part 73, a top pressure part 74, a lever body 75, a first lever part 751, a second lever part 752, a third lever part 753, a fourth lever part 754, a male buckle end 8 and a female buckle end 9.

The specific implementation mode is as follows:

the utility model is further described with reference to the accompanying drawings, as shown in fig. 1-6, the utility model includes a housing 1, an upper cavity 2 disposed at the top inside the housing 1, a lower cavity 3 disposed at the bottom inside the housing 1, and a pressure port 4 disposed at the middle inside the housing 1, the upper cavity 2 is communicated with the lower cavity 3 through the pressure port 4, a gravity ball 5 is disposed in the upper cavity 2, a micro switch module 6 and a pressure lever 7 are disposed in the lower cavity 3, the micro switch module 6 includes a micro switch button 61, one end of the pressure lever 7 is hinged to the lower cavity 3, the other end of the pressure lever 7 is located at the position of the pressure port 4, the middle of the pressure lever 7 is pressed against the micro switch button 61, one end of the pressure lever 7 located at the position of the pressure port 4 is provided with a pressure receiving portion 71, the pressure receiving portion 71 includes a pressure receiving semi-sphere 711, and a pressure plane 712 disposed at the top of the pressure semi-sphere 711; because the cambered surface has smaller friction force and easy rolling property, when the gravity ball 5 rolls and contacts the pressed hemispherical surface 711 of the pressed part, the gravity ball 5 can easily push the pressed part 71 and enable the pressed part 71 to rotate to the position of the pressure opening 4, the gravity ball 5 can be prevented from being clamped on a gap between the pressure rod 7 and the shell 1, and the gravity ball 5 can quickly and sensitively roll to the position of the pressure opening 4 and downwards press the pressed part 71.

The pressed part 71 is hollow at the bottom and is provided with the U-shaped connecting part 713, the pressed part 71 is connected with the pressure lever 7 through the U-shaped connecting part 713, the whole body is lighter, materials can be saved, the gravity ball 5 can be conveniently pressed down, and the micro switch button 61 can be pressed and triggered more flexibly.

The pressure lever 7 is provided with the reinforcing rib 72, the strength and the deformation resistance of the pressure lever 7 can be enhanced through the reinforcing rib 72, the pressure lever 7 can be used for a long time without deformation, and the microswitch button 61 can be normally pressed and loosened for a long time.

Compared with the existing anti-toppling switch which is provided with the U-shaped support, the shell 1 is integrally formed with the hinge groove 13, the pressure rod 7 comprises the hinge part 73, and the hinge part 73 of the pressure rod 7 is rotatably connected in the hinge groove 13, so that the anti-toppling switch not only needs fewer parts integrally and is convenient to install and use, but also has a more compact and reasonable integral structure.

The existing anti-toppling switch is characterized in that the jacking part 74 for jacking the microswitch button 61 is of a planar structure, the jacking part 74 for jacking the microswitch button 61 is arranged at the position, close to the hinged end, of the pressure lever 7, and the jacking part 74 is of an inverted V-shaped structure because the microswitch button 61 is of a U-shaped structure and the jacking part 74 is of an inverted V-shaped structure, so that the jacking part 74 can be better attached to the structural shape of the microswitch button 61, and the microswitch button 61 can be better jacked.

The pressing rod 7 comprises a rod body 75, the rod body 75 comprises a first rod portion 751, one end of the first rod portion 751 extends obliquely downwards to form a second rod portion 752, one end of the second rod portion 752 extends obliquely upwards to form a third rod portion 753, one end of the third rod portion 753 extends obliquely upwards to form a fourth rod portion 754, and the pressed portion 71 is arranged on the fourth rod portion 754, so that the pressed portion can be better attached to the inner space of the shell 1, and the whole structure is more compact.

The upper cavity 2 comprises a first upper cavity 21 and a second upper cavity 22 positioned below the first upper cavity 21, the first upper cavity 21 is of a cylindrical structure, the second upper cavity 22 is of a circular truncated cone-shaped structure with openings gradually reduced from top to bottom, the first upper cavity 21 and the second upper cavity 22 are distributed in a concentric circle manner, and the diameter of the first upper cavity 21 is larger than that of the opening at the top of the second upper cavity 22; the upper cavity 2 comprises a first upper cavity 21 and a second upper cavity 22 positioned below the first upper cavity 21, the first upper cavity 21 is a cylindrical structure, and the second upper cavity 22 is a circular truncated cone-shaped structure with openings gradually reduced from top to bottom; compared with the existing anti-tilt switch, when the equipment is in a tilt state, the gravity ball 5 stops downwards jacking the pressure rod 7 and rolls to the position of the first upper cavity part 21 of the upper cavity body 2, the second upper cavity part 22 can butt and limit the gravity ball 5, only when the equipment is righted to a certain angle again, the gravity ball 5 can roll back to the position of the pressure port 4 again and downwards jacking the pressure rod 7 again, the gravity ball 5 can be prevented from easily rolling back to the position of the pressure port 4 and downwards jacking the pressure rod 7, the equipment can be prevented from being mistakenly triggered in the tilt state, the use is more guaranteed, and the anti-tilt switch can be better suitable for various use occasions; be the concentric circles between first upper chamber portion 21 and the second upper chamber portion 22 and distribute, the diameter of first upper chamber portion 21 is greater than the diameter of second upper chamber portion 22 open-top, when equipment was in the tilt state, the position that cavity portion 22 and gravity ball 5 contacted was for the position of comparatively near the centre of a sphere, can further promote the spacing retaining effect of second upper chamber portion 22 to gravity ball 5, thereby can further make gravity ball 5 be stably on first upper chamber portion 21, can guarantee that gravity ball 5 can not roll back to pressure mouth 4 position department and carry out the roof pressure to depression bar 7 when equipment is in the tilt state, thereby can prevent that equipment from producing the spurious triggering under the tilt state.

The pressure port 4 is of a circular structure, and the diameter of the gravity ball 5 is larger than that of the pressure port 4; when the device is in a normal use state, the gravity ball 5 is positioned at the position of the pressure port 4, the bottom of the gravity ball 5 protrudes downwards into the lower cavity 3 and pushes the pressure receiving part 71 downwards, and the pressure rod 7 rotates downwards and pushes the microswitch button 61 downwards; the diameter of the pressure port 4 of the existing anti-toppling switch is larger than that of the gravity ball 5, when the device is in a normal use state, the gravity ball 5 can fall into the position of the pressure port 4 as a whole, the position of the gravity ball 5 falling on the pressure receiving part 71 of the pressure rod 7 is not unique, the distance between the micro-switch button 61 and the hinged position of the pressure rod 7 is L1, the pressure applied to the micro-switch button 61 is F1, the distance between the position where the gravity ball 5 presses the pressure rod 7 and the hinged position of the pressure rod 7 is L2, the pressure applied to the pressure rod 7 by the gravity ball 5 is F2, which can be obtained by the lever principle, L1 x F1 is L2 x F2, wherein F2 is provided by the gravity of the gravity ball 5, and L1 and F2 are not changed, so that the pressure F1 applied to the micro-switch button 61 can be changed correspondingly with different L2, that the micro-switch button 61 can be pressed by different sizes due to the different falling points of the gravity ball 5, compared with the existing anti-toppling switch, the pressure port 4 of the anti-toppling switch is of a circular structure, the diameter of the gravity ball 5 is larger than that of the pressure port 4, when the device is in a normal use state, the gravity ball 5 is located at the position of the pressure port 4, the bottom of the gravity ball 5 protrudes downwards into the lower cavity 3 and pushes the pressure part 71 downwards, the pressure rod 7 rotates downwards and pushes the micro-switch button 61 downwards, the same position of the pressure part 71 can be pushed downwards no matter which direction the gravity ball 5 rolls to the position of the pressure port 4, the position where the gravity ball 5 pushes the pressure part 71 of the pressure rod 7 is fixed and unique, namely the micro-switch button 61 can be pressed downwards and triggered better, and the anti-toppling switch can be applied to various use occasions better.

When the equipment is in an inclined state, the gravity ball 5 stops pressing the pressed part 71 of the pressing rod 7 downwards, the pressing rod 7 rotates upwards, and the pressed part 71 protrudes upwards from the position of the pressing port 4 in the second upper cavity part 22; when the device is in a tilting state, the pressed part 71 of the pressure lever 7 of the existing anti-tilting switch is positioned at the position of the pressure port 4; compared with the existing anti-tilt switch, when the device is in a tilted state, the gravity ball 5 stops downwards pressing the pressed part 71 of the pressing rod 7, the pressing rod 7 rotates upwards, and the pressed part 71 protrudes upwards from the position of the pressing opening 4 into the second upper cavity part 22, so that the gravity ball 5 can be limited and blocked, when the gravity ball 5 rolls towards the position of the pressing opening 4, the pressed part 71 is blocked reversely, the gravity ball 5 cannot easily roll back to the position of the pressing opening 4, the gravity ball 5 can be further stably positioned on the first upper cavity part 21, the gravity ball 5 cannot roll back to the position of the pressing opening 4 and press the pressing rod 7 when the device is in the tilted state, the device can be prevented from being triggered mistakenly in the tilted state, the gravity ball 5 can better press and trigger the micro-switch button 61, and compared with the gravity ball 5 directly rolls from the position of the first upper cavity part 21 to the position of the pressing opening 4 and then presses the pressed part 71 When the micro-switch button 61 is pressed in an impact manner, the pressed part 71 of the utility model contacts and presses the pressed part 71 when the gravity ball 5 rolls to the second upper cavity part 22, so that the micro-switch button 61 can be gradually and slowly pressed down and triggered, the damage of parts can be avoided, and the service life of the whole micro-switch button is longer.

The shell 1 comprises a front half shell 11 and a rear half shell 12, and compared with the mode of connecting the front half shell 11 and the rear half shell 12 through a screw, the front half shell 11 is provided with a buckle male end 8, the rear half shell 12 is provided with a buckle female end 9, and the front half shell 11 and the rear half shell 12 are connected in a buckle connection mode, so that the shell is convenient to assemble, can improve the production efficiency, and is convenient to disassemble for subsequent maintenance and repair.

The housing 1 is provided with mounting holes 14, and the utility model can be conveniently mounted and fixed by passing screws through the mounting holes 14 on the housing 1.

The gravity ball 5 is a steel ball, and the shell 1 and the pressure lever 7 are both made of plastics; the diameter of the gravity ball 5 is 15-20 mm, the diameter of the pressure opening 4 is 10-15 mm, the diameter of the hinge portion 73 is 2-5 mm, the radius of the pressure semi-spherical surface 711 is 3-6 mm, the diameter of the pressure plane 712 is 3-6 mm, and the included angle of the top pressing portion 74 is 170-175 degrees. Preferably, the diameter of the gravity ball 5 is 18 mm, the diameter of the pressure opening 4 is 11.4 mm, the diameter of the hinge portion 73 is 2.95 mm, the radius of the pressure semi-spherical surface 711 is 4 mm, the diameter of the pressure plane 712 is 4.6 mm, and the included angle of the pressing portion 74 is 173 degrees. The above dimensions and materials make the anti-toppling function more sensitive and accurate, and do not influence the production, assembly and cost, which is an important design point of the utility model.

The working principle is as follows:

when the equipment is in a normal use state, the gravity ball 5 is positioned at the position of the pressure port 4, the bottom of the gravity ball 5 protrudes downwards into the lower cavity 3 and pushes the pressure receiving part 71 downwards, the pressure lever 7 rotates downwards and pushes the microswitch button 61 downwards, and the microswitch button 61 is in a trigger state; when the equipment is inclined, the gravity ball 5 rolls to the position of the first upper cavity part 21 of the upper cavity body 2 and stops downwards pressing the pressed part 71 of the pressed rod 7, the pressed rod 7 rotates upwards, the pressed part 71 protrudes upwards from the position of the pressed port 4 into the second upper cavity part 22, and the microswitch button 61 is reset upwards and is in an unfired state; after the equipment is righted again, the gravity ball 5 rolls back to the position of the pressure port 4, the gravity ball 5 presses the pressed part 71 downwards again, the pressure rod 7 rotates downwards and presses the microswitch button 61 downwards, and the microswitch button 61 is pressed again and is in a triggering state; the utility model can prevent the gravity ball 5 from being clamped on the gap between the pressure lever 7 and the shell 1, and the gravity ball 5 can quickly and sensitively roll to the position of the pressure opening 4 and downwards press the pressed part 71.

It is understood that the above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, features and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides an anti-overturning switch, includes casing (1), be equipped with micro-gap switch module (6), be used for the roof pressure and trigger depression bar (7) of micro-gap switch module (6), be used for gravity ball (5) of roof pressure depression bar (7) in casing (1), its characterized in that: one end of the compression bar (7) pressed by the gravity ball (5) is provided with a pressed part (71), and the pressed part (71) comprises a pressed hemispherical surface (711) and a pressed plane (712) arranged at the top of the pressed hemispherical surface (711).

2. An anti-tip switch according to claim 1, wherein: the compression part (71) is hollow at the bottom and is provided with a U-shaped connecting part (713), and the compression part (71) is connected with the compression bar (7) through the U-shaped connecting part (713).

3. An anti-tip switch according to claim 1, wherein: the shell (1) is integrally formed with a hinge groove (13), the pressure lever (7) comprises a hinge part (73), and the hinge part (73) of the pressure lever (7) is rotatably connected into the hinge groove (13).

4. An anti-tip switch according to claim 1, wherein: the pressing rod (7) comprises a rod body (75), the rod body (75) comprises a first rod portion (751), one end of the first rod portion (751) extends and forms a second rod portion (752) obliquely downwards, one end of the second rod portion (752) extends and forms a third rod portion (753) obliquely upwards, one end of the third rod portion (753) extends and forms a fourth rod portion (754) obliquely upwards, and the compression portion (71) is arranged on the fourth rod portion (754).

5. An anti-tip switch according to claim 1, wherein: still including setting up in last cavity (2) at top in casing (1), setting up in casing (1) lower cavity (3) of bottom, setting up in pressure mouthful (4) of middle part in casing (1), it is linked together through pressure mouthful (4) and cavity (3) down to go up cavity (2), and gravity ball (5) set up in last cavity (2), and micro-gap switch module (6) set up in cavity (3) down, and micro-gap switch module (6) include micro-gap switch button (61), and the one end of depression bar (7) articulates on cavity (3) down, and the other end of depression bar (7) is located pressure mouthful (4) position department, and the middle part and the micro-gap switch button (61) of depression bar (7) support mutually and press.

6. An anti-tip switch according to claim 5, wherein: and a jacking part (74) for jacking the microswitch button (61) is arranged at the position of the pressure lever (7) close to the hinged end, and the jacking part (74) is of an inverted V-shaped structure.

7. An anti-tip switch according to claim 5, wherein: go up cavity (2) including first upper chamber portion (21), be located first upper chamber portion (21) below second upper chamber portion (22), first upper chamber portion (21) are cylindric structure, and cavity portion (22) are the round platform column structure that the opening gradually reduces from top to bottom in proper order on the second, are the concentric circles between first upper chamber portion (21) and the second upper chamber portion (22) and distribute, and the diameter of first upper chamber portion (21) is greater than the diameter of second upper chamber portion (22) open-top.

8. An anti-tip switch according to claim 5, wherein: the pressure port (4) is of a circular structure, and the diameter of the gravity ball (5) is larger than that of the pressure port (4); when the device is in a normal use state, the gravity ball (5) is located at the position of the pressure opening (4), the bottom of the gravity ball (5) downwards protrudes into the lower cavity (3) and downwards presses the pressure part (71), and the pressure rod (7) downwards rotates and downwards presses the microswitch button (61).

9. An anti-tip switch according to claim 5, wherein: when the equipment is in an inclined state, the gravity ball (5) stops downwards pressing the pressure part (71) of the pressure rod (7), the pressure rod (7) rotates upwards, and the pressure part (71) protrudes upwards from the position of the pressure opening (4) into the second upper cavity part (22).

10. An anti-tip switch according to claim 1, wherein: casing (1) is equipped with buckle male end (8) including preceding half shell (11), latter half shell (12) on preceding half shell (11), is equipped with buckle female end (9) on later half shell (12), is connected through the mode of buckle connection between preceding half shell (11), latter half shell (12).