CN211858512U

CN211858512U - Anti-toppling switch

Info

Publication number: CN211858512U
Application number: CN202020539116.3U
Authority: CN
Inventors: 张方晓; 曾流华; 吴飞
Original assignee: Zhejiang Leci Electronics Co ltd
Current assignee: Leci Electronics Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-11-03
Anticipated expiration: 2030-04-13

Abstract

The utility model relates to the technical field of switches, and aims to provide an anti-toppling switch, which comprises a shell, wherein a first cavity and a second cavity which are mutually communicated are arranged in the shell, a heavy ball is movably arranged in the first cavity, a base is arranged in the shell, and a control component which is controlled by the base to be switched on or off is arranged in the second cavity; the control assembly comprises a first insertion piece, a second insertion piece, a spring piece, an arc-shaped edge and a movable contact piece, wherein the first insertion piece is provided with a fixed contact, and the movable contact piece is provided with a movable contact; the utility model discloses can prevent that the spring leaf from taking place the elastic fatigue back moving contact can't with the static contact butt.

Description

Anti-toppling switch

Technical Field

The utility model relates to the technical field of switches, in particular to prevent empting switch.

Background

The anti-toppling switch is mainly used for ensuring the smoothness of electric connection when the household appliance is in a normal position so as to protect the normal work of the household appliance; meanwhile, in order to prevent the household appliance from damaging people or objects around the household appliance after being toppled, the switch is turned off rapidly after the household appliance is toppled, so that the household appliance is in a non-working state.

Chinese patent document that prior art was granted No. CN208189476U discloses an anti-toppling switch, and the device is including the casing, be equipped with first cavity and second cavity in the casing, be equipped with the heavy ball of free activity in the first cavity, the internal rotation of casing is connected with the drive end, be equipped with in the second cavity and be controlled by the control assembly of drive end in order to switch on or break off, the utility model discloses set up control assembly in the casing, reduced micro-gap switch's needs the shell, have the effect that reduces the cost and improve production efficiency.

The above prior art solutions have the following drawbacks: the device exerts pressure on the stressed end through the dead weight of the heavy ball, the main rod rotates around the hinged end, the pressing rod presses the movable contact along with the movable contact, the movable contact is contacted with the static contact, and the circuit conduction is realized. However, the lower pressing rod and the moving contact in the above-mentioned device are not in the same position, and the end of the lower pressing rod cannot be directly moved to drive the moving contact to abut against the static contact, but the spring leaf converts the pressure of the lower pressing rod, so that the moving contact approaches and contacts the static contact, but if the elasticity of the spring leaf is gradually weakened, the efficiency of converting the pressure of the lower pressing rod becomes gradually lower, and it is possible that the moving contact still does not contact with the static contact after the heavy ball applies pressure to the stressed end, which may cause the device to malfunction.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide an anti-overturning switch prevents that the spring leaf from taking place the elastic fatigue back moving contact can't with the static contact butt.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an anti-toppling switch comprises a shell, wherein a first cavity and a second cavity which are communicated with each other are arranged in the shell, a heavy ball is movably arranged in the first cavity, a base is arranged in the shell, and a control assembly controlled by the base to be switched on or off is arranged in the second cavity; the control assembly comprises a first insertion piece, a second insertion piece, a spring piece, an arc-shaped edge and a movable contact piece, wherein the first insertion piece is provided with a fixed contact, and the movable contact piece is provided with a movable contact; one end of the base is hinged to the shell, the other end of the base is a stressed end, the stressed end is located below the heavy ball, a supporting rod is arranged on one side, facing the movable contact, of the stressed end face of the base, the tail end of the supporting rod extends to the upper portion of the movable contact, after the heavy ball moves to the joint of the first cavity and the second cavity and is abutted to the stressed end, the tail end of the supporting rod is in pressing contact with the movable contact, and the movable contact is abutted to the fixed contact.

Through adopting above-mentioned technical scheme, heavy ball and stress end extrusion contact back base take place to rotate around the hinged end, support the pole and be close to and the butt with it towards the movable contact gradually under the drive of base, and then make movable contact and movable contact butt, solved the spring leaf and produced the elastic fatigue back heavy ball extrusion stress end still can't make the problem of movable contact and static contact butt, the function of spring leaf in this device includes as the piece that resets that drives the movable contact and reset.

The utility model discloses further set up to: and a lower pressing rod is arranged on one side of the base facing the movable contact spring on the hinged end surface and is in contact with the control assembly.

Through adopting above-mentioned technical scheme, the lower depression bar rotates the back at the base and squeezes the contact with the control assembly and drive the static contact and be close to and the butt towards the static contact.

The utility model discloses further set up to: and the end surface of the base facing the movable contact spring is provided with a reinforcing rib.

Through adopting above-mentioned technical scheme, improve the structural strength of base.

The utility model discloses further set up to: the movable contact is provided with a first contact hole, the movable contact comprises a movable contact end and a movable connecting end, the movable contact end faces the fixed contact, and the movable connecting end is in interference fit with the first contact hole.

Through adopting above-mentioned technical scheme, convenient to detach and change the moving contact, the moving contact piece that needs the whole change after the moving contact became invalid causes the wasting of resources.

The utility model discloses further set up to: the first inserting piece is provided with a first contact hole, the static contact comprises a static contact end and a static connecting end, the static contact end faces the dynamic contact end, and the static connecting end is in interference fit with the first contact hole.

By adopting the technical scheme, the first inserting piece is often inserted and pulled into a vulnerable part, the static contact has long service life, and the detachable mode of the static contact avoids resource waste caused by early scrapping of the static contact.

The utility model discloses further set up to: a limiting block is arranged on the inner wall of the second cavity and one side of the lower pressing rod, a second slot is formed in the limiting block, and one end of the second inserting piece is in inserting fit with the second slot; and in an initial state, the lower pressing rod is abutted against the limiting block, and a gap exists between the stress end and the heavy ball.

Through adopting above-mentioned technical scheme for fixed second inserted sheet prevents simultaneously that the atress end from entering into in the first cavity and the unexpected contact of heavy ball under the spring action of spring leaf, influences electrical apparatus normal operating.

The utility model discloses further set up to: the first inserted sheet both sides are provided with the locating piece respectively, be provided with the constant head tank with locating piece grafting cooperation in the casing.

Through adopting above-mentioned technical scheme, play the positioning action, prevent that first inserted sheet from inserting askewly and leading to the moving contact unable with the static contact butt.

The utility model discloses further set up to: the aperture of the joint of the first cavity and the second cavity is smaller than the diameter of the heavy ball.

Through adopting above-mentioned technical scheme, prevent that heavy ball from getting into in the second cavity by first cavity.

To sum up, the beneficial effects of the utility model are that:

1. the base rotates around the hinged end after the heavy ball is in extrusion contact with the stress end, the abutting rod is driven by the base to gradually approach the movable contact and abut against the movable contact, and then the movable contact abuts against the movable contact, so that the problem that the heavy ball still cannot abut against the movable contact and the static contact when the stress end is extruded by the heavy ball after the spring piece generates elastic fatigue is solved;

2. the second inserting piece is used for fixing the second inserting piece, and meanwhile, the stress end is prevented from entering the first cavity to be in accidental contact with the heavy ball under the elastic action of the spring piece, and the normal operation of an electric appliance is prevented from being influenced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic diagram of the local explosion of the present invention.

Reference numerals: 1. a housing; 11. a first cavity; 12. a second cavity; 13. a first opening; 14. a first slot; 15. a second opening; 16. a second slot; 17. positioning a groove; 18. a limiting block; 2. heavy balls; 3. a base; 31. reinforcing ribs; 32. a force-bearing end; 33. a lower pressure lever; 34. a support rod; 4. a control component; 41. a first tab; 411. static contact; 4111. a stationary contact end; 4112. a static connecting end; 412. positioning blocks; 413. a second contact hole; 42. a second insert; 43. a spring plate; 44. an arc-shaped edge; 45. a movable contact spring; 451. a moving contact; 4511. a movable contact end; 4512. a movable connecting end; 452. a first contact hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an anti-toppling switch, as shown in fig. 1 and 2, the anti-toppling switch comprises a shell 1, a first cavity 11 and a second cavity 12 which are communicated with each other are arranged in the shell 1, a heavy ball 2 is movably arranged in the first cavity 11, the caliber of the joint of the first cavity 11 and the second cavity 12 is smaller than the diameter of the heavy ball 2, and the heavy ball 2 is prevented from falling to the second cavity 12 from the first cavity 11. A base 3 is arranged in the shell 1, and a reinforcing rib 31 for improving the structural strength of the base 3 is integrally formed on the end surface of the base 3 facing the movable contact spring 45. The second cavity 12 is provided with a control assembly 4 controlled by the base 3 to be turned on or off. One end of the base 3 is hinged to the shell 1, the other end is a stress end 32, and the stress end 32 is positioned below the heavy ball 2. When the housing 1 is placed vertically, the heavy ball 2 moves to the vertically lowest end of the first cavity 11, and the heavy ball 2 abuts against the force-bearing end 32. The base 3 is provided with a push-down lever 33 at a side of the hinge end facing the movable contact 45.

As shown in fig. 1 and 2, the control assembly 4 includes a first insertion sheet 41, a second insertion sheet 42, a spring sheet 43, an arc-shaped edge 44 and a movable contact 45, wherein one end of the arc-shaped edge 44 is hinged to the second insertion sheet 42, and the other end thereof is in contact with the base 3. The spring piece 43 is matched with the movable contact piece 45, so that the movable contact 451 is separated from the fixed contact 411 after the heavy ball 2 is separated from the stressed end 32, and the reset function is realized. When the movable contact piece 45 moves downwards away from one end of the first insertion piece 41, the movable contact piece 45 moves downwards integrally to enable the movable contact 451 to be abutted against the fixed contact 411, so that the first insertion piece 41 is conducted with the second insertion piece 42; when the force applied to the end of the movable contact 45 away from the first plug-in piece 41 is smaller than the elastic force of the spring piece 43, the movable contact 45 moves upward integrally and separates the movable contact 451 from the fixed contact 411, thereby realizing the disconnection of the first plug-in piece 41 and the second plug-in piece 42.

As shown in fig. 1 and 2, the first insert 41 is provided with a fixed contact 411, the movable contact 45 is provided with a movable contact 451, and the circuit of the device is conducted after the movable contact 451 is in contact with the fixed contact 411. A first opening 13 and a first slot 14 for limiting the first insert 41 are integrally formed on the shell 1, and the arrangement of the first opening 13 and the first slot 14 plays a role in stabilizing the first insert 41; the positioning blocks 412 are respectively arranged on two sides of the first insertion piece 41, and the positioning groove 17 in inserting fit with the positioning blocks 412 is arranged in the housing 1, so that a positioning effect is achieved, and the moving contact 451 is prevented from being abutted against the fixed contact 411 due to the fact that the first insertion piece 41 is inserted askew.

As shown in fig. 1 and fig. 2, a second opening 15 for limiting a second insertion sheet 42 is integrally formed on the housing 1, one end of the second insertion sheet 42 is located inside the housing 1, and the other end is located outside the housing 1; a limiting block 18 is arranged on one side of the inner wall of the second cavity 12 and the lower pressing rod 33, a second slot 16 is formed in the limiting block 18, and one end, located in the shell 1, of the second inserting piece 42 is in inserting fit with the second slot 16; the lower pressing rod 33 is abutted with the limiting block 18 in the initial state, and a gap exists between the stress end 32 and the heavy ball 2; the stopper 18 is used for fixing the second tab 42 and preventing the force-bearing end 32 from entering the first cavity 11 to contact the heavy ball 2 under the action of the spring piece 43.

As shown in fig. 1 and 2, the movable contact 45 is provided with a first contact hole 452, the movable contact 451 includes a movable contact end 4511 and a movable connection end 4512, the movable contact end 4511 faces the stationary contact 411, the movable connection end 4512 is in interference fit with the first contact hole 452, and the detachable connection mode facilitates replacement of local parts to improve the overall service life. The second contact hole 413 is formed in the first inserting piece 41, the static contact 411 comprises a static contact end 4111 and a static connecting end 4112, the static contact end 4111 faces the dynamic contact end 4511, the static connecting end 4112 is in interference fit with the second contact hole 413, and the detachable connection mode facilitates replacement of local parts so as to prolong the service life of the whole.

As shown in fig. 1 and 2, a resisting rod 34 is disposed on one side of the base 3 facing the moving contact 45 at the force bearing end 32, a tail end of the resisting rod 34 extends above the moving contact 451, and after the heavy ball 2 moves to a connection position between the first cavity 11 and the second cavity 12 and is contacted with the force bearing end 32, the tail end of the resisting rod 34 is in pressing contact with the moving contact 45, and the moving contact 451 is contacted with the fixed contact 411; after the heavy ball 2 is in pressing contact with the stressed end 32, the base 3 rotates around the hinged end, the abutting rod 34 is driven by the base 3 to gradually approach the moving contact 45 and abut against the moving contact, so that the moving contact 451 abuts against the moving contact 451, and the problem that after the spring piece 43 generates elastic fatigue, the heavy ball 2 is still pressed by the stressed end 32 and cannot abut against the moving contact 451 and the static contact 411 is solved.

The utility model discloses a concrete operation flow as follows:

when the shell 1 is vertically placed, the heavy ball 2 presses the stressed end 32, the base 3 rotates around the hinged end, the tail end of the abutting rod 34 is gradually close to the movable contact piece 45 and is in pressing contact with the movable contact piece 451, the movable contact piece 45 drives the movable contact piece 451 to abut against the fixed contact 411, a circuit in the device is conducted, meanwhile, the reliability of contact between the movable contact piece 451 and the fixed contact 411 is guaranteed, after the heavy ball 2 is separated from the stressed end 32, the movable contact piece 45 resets under the action of the spring piece 43, the movable contact piece 451 is driven to leave the fixed contact 411, and the anti-toppling function is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, 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. An anti-toppling switch comprises a shell (1), wherein a first cavity (11) and a second cavity (12) which are communicated with each other are arranged in the shell (1), a heavy ball (2) is movably arranged in the first cavity (11), a base (3) is arranged in the shell (1), and a control assembly (4) which is controlled by the base (3) to be connected or disconnected is arranged in the second cavity (12); the control component (4) comprises a first inserting sheet (41), a second inserting sheet (42), a spring sheet (43), an arc-shaped edge (44) and a movable contact sheet (45), wherein the first inserting sheet (41) is provided with a fixed contact (411), and the movable contact sheet (45) is provided with a movable contact (451); the one end of base (3) articulates in casing (1), the other end is atress end (32), atress end (32) are located heavy ball (2) below, its characterized in that: one side of the base (3) facing the movable contact piece (45) at the stress end (32) is provided with a resisting rod (34), the tail end of the resisting rod (34) extends to the upper side of the movable contact (451), after the heavy ball (2) moves to the joint of the first cavity (11) and the second cavity (12) and is abutted against the stress end (32), the tail end of the resisting rod (34) is in extrusion contact with the movable contact piece (45), and the movable contact (451) is abutted against the fixed contact (411).

2. The anti-tip switch of claim 1, wherein: and a lower pressing rod (33) is arranged on one side of the base (3) facing the movable contact piece (45) at the hinged end, and the lower pressing rod (33) is contacted with the control component (4).

3. The anti-tip switch of claim 1, wherein: and a reinforcing rib (31) is arranged on the end surface of the base (3) facing the movable contact piece (45).

4. The anti-tip switch of claim 1, wherein: the movable contact piece (45) is provided with a first contact hole (452), the movable contact (451) comprises a movable contact end (4511) and a movable connecting end (4512), the movable contact end (4511) faces the fixed contact (411), and the movable connecting end (4512) is in interference fit with the first contact hole (452).

5. The anti-tip switch of claim 1, wherein: the second contact hole (413) has been seted up on first inserted sheet (41), static contact (411) are including static contact end (4111) and static link (4112), static contact end (4111) face to move contact end (4511), static link (4112) and second contact hole (413) interference fit.

6. The anti-tip switch of claim 1, wherein: a limiting block (18) is arranged on one side of the inner wall of the second cavity (12) and the lower pressing rod (33), a second slot (16) is formed in the limiting block (18), and one end of the second inserting piece (42) is in inserting fit with the second slot (16); the lower pressure rod (33) is abutted to the limiting block (18) in the initial state, and a gap exists between the stress end (32) and the heavy ball (2).

7. The anti-tip switch of claim 1, wherein: locating blocks (412) are respectively arranged on two sides of the first inserting piece (41), and locating grooves (17) which are matched with the locating blocks (412) in an inserting mode are formed in the shell (1).

8. The anti-tip switch of claim 1, wherein: the aperture of the joint of the first cavity (11) and the second cavity (12) is smaller than the diameter of the heavy ball (2).