CN2901553Y

CN2901553Y - Micro full closed self locking type anti-fall switch

Info

Publication number: CN2901553Y
Application number: CN 200620073145
Authority: CN
Inventors: 栾润玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-28
Filing date: 2006-04-28
Publication date: 2007-05-16
Anticipated expiration: 2016-04-28

Abstract

The utility model relates to a mini totally-enclosed self-locking anti-toppling switch, comprising a microswitch, a support disc, a ball bearing, a pallet and a spring II which are arranged inside a shell, and a button connected with the bottom of the pallet, wherein the microswitch fixedly connected with a cover board is disposed on the top of the shell and the cover board is connected on the shell; the top of the pallet equipped with a stay bar is provided with the ball bearing and the spring II is disposed between the pallet and the support disc equipped with a cavity; a spring I packed on the stay bar is separately connected with the pallet and the button and the button is connected on the pallet and extends through the bottom of the shell; a contact on the bottom of a tablet whose one end is connected on the cover board corresponds with the cavity of the support disc, the ball bearing arranged on the top of the pallet is equipped inside the cavity of the support disc and impacts with the contact of the tablet, and the tablet makes circuit through pressing an active contact of the microswitch. The mini totally-enclosed self-locking anti-toppling switch of the utility model has the characteristics of safe and reliable utilization and small bulk.

Description

Miniature totally-enclosed self-locking anti-dumping switch

Technical field

The utility model relates to a kind of electric control switch, especially a kind ofly is used to prevent the miniature totally-enclosed self-locking anti-dumping switch that shields when electrical equipment is toppled over.

Background technology

Be used for the anti-dumping switch that shields when household electrical appliance such as various warm-air driers, electric fan, electric heating installation using oil as medium, desk lamp, electric fan and dehumidifier and other electrical equipment are toppled over, adopt spring-piece type anti-dumping switch and ball-type anti-dumping switch usually.Do not replaced by the ball-type anti-dumping switch because the job security of spring-piece type anti-dumping switch is high.The ball-type anti-dumping switch is by the variation of ball with the main frame position, ball is fallen in the cavity of housing depress pallet, or the cavity of spheroid disengaging housing makes pallet be in free state, realize controlling the switching work of sensitive switch and power supply and circuit by compressing tablet, having operating angle is omnibearing advantage.But present disclosed anti-dumping switch all exists the relatively large problem of volume, so use occasion is restricted.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of safe and reliable, the miniature totally-enclosed self-locking anti-dumping switch that volume is little.

The technical scheme that the utility model solves the problems of the technologies described above is: a kind of miniature totally-enclosed self-locking anti-dumping switch, it is characterized in that: comprise the knob that is arranged on sensitive switch, supporting disk, ball, pallet, the spring II in the housing and is connected the tray bottom, fixedly connected sensitive switch on the cover board is positioned at the top of housing, and cover plate is connected on the housing; Its top of pallet that has strut is provided with ball, and spring II is arranged on pallet and has between the supporting disk of cavity; The spring I that is sleeved on the strut joins with pallet and knob respectively, and knob is connected on the pallet and extends lower part of frame; It is corresponding with the cavity of supporting disk that one end connects the contact of compressing tablet its underpart on the cover board, is positioned at the contact crimping that the ball of tray top places the cavity and the compressing tablet of supporting disk, and compressing tablet is depressed the moving contact connection circuit of sensitive switch.

Operation principle of the present utility model is: when main frame just often, move the promotion pallet on the knob, ball is delivered in the cavity of supporting disk, withstand compressing tablet, move on the compressing tablet this moment, depresses the moving contact of sensitive switch, moment energized or circuit.When main frame tilts and falls, ball under the effect of its gravity with the housing tilt displacement, the ball this moment minimum point place between pallet and supporting disk then, because ball breaks away from the cavity of supporting disk, compressing tablet is set back, sensitive switch moment disconnection reaches and cuts off the electricity supply or circuit, and realizes the purpose of self-locking.

After the utility model was implemented technique scheme, in the main frame operate as normal, when knob promoted to move on the pallet by spring, the ball of tray top placed in the cavity of supporting disk, depresses compressing tablet and makes microswitch connecting power; And when main frame tilted, ball broke away from the cavity of supporting disk; Place other position of pallet, make compressing tablet be in free state, the utility model is controlled the switching work of sensitive switch and power supply or circuit by the position of rolling, and not only operating angle is comprehensive, the wink of switch motion, moving property was good, but also had self-locking property preferably.The utility model connects microswitch on the cover board, again cover plate is connected on the housing, and compact conformation, volume is little, because sensitive switch is arranged on the top of housing, can further improve functional reliability.Because action component is arranged in the housing, be not subject to the influence of external environment factors such as the corrosion of gases such as airborne acid, alkali and air humidity in addition, guaranteed the moving property of wink of switch motion, safe and reliable, the useful life of improving switch.Anti-dumping switch of the present utility model can be widely used in household electrical appliance and other electrical equipment such as warm-air drier, electric fan, electric heating installation using oil as medium, desk lamp and dehumidifier.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a blast structural representation of the present utility model.

Structural representation when Fig. 2 is the disconnection of the utility model circuit.

Structural representation after Fig. 3 tilts when being the disconnection of the utility model circuit

Structural representation when Fig. 4 is the connection of the utility model circuit.

Structural representation after Fig. 5 tilts when being the connection of the utility model circuit.

Wherein: the 1-knob, the 1-1-annular groove, 1-2-stops up, 2-spring I, 3-housing, the 3-1-draw-in groove, 4-pallet, 4-1-strut, 5-ball, 6-spring II, 7-supporting disk, 7-1-chimb, 8-spring, the 9-compressing tablet, 10-sensitive switch, 10-1-extension spring, 10-2-pin sheet, the quiet pin sheet of 10-3-, 10-4-fixed contact, 10-5-shell fragment, 10-6-moving contact, the 11-back-moving spring, 12-cover plate, 12-1-notch, 12-2-projection.

Embodiment

Miniature as shown in Figure 1 totally-enclosed self-locking anti-dumping switch comprises sensitive switch 10, supporting disk 7, ball 5, pallet 4, spring II 6 that is arranged in the housing 3 and the knob 1 that is connected pallet 4 bottoms.Sensitive switch 10 is fixedly connected on the cover plate 12, and sensitive switch 10 is positioned at the top of housing 3, and cover plate 12 is connected on the housing 3.See shown in Figure 1, knob 1 is connected on the pallet 4 by screw, and the bottom of extending housing 3, the bottom of knob 1 is equipped with and is stopped up 1-2, for knob 1 can not rotated in housing 3, knob 1 and housing 3 mating surfaces are provided with the guide groove that matches and lead muscle, and knob 1 is slidingly matched and can moves axially with it.The bottom of pallet 4 has the strut 4-1 of one, the card of pallet 4 is the conical surface or ball face, ball 5 is arranged in the card of pallet 4, when main frame is in vertical position, ball 5 is positioned at the card middle part of pallet 4, also has spring base in the card bottom of pallet 4, and spring II6 is arranged on the spring base of pallet 4 and has between the supporting disk 7 of cavity, after knob 1 resets, pallet 4 is resetted by spring II6.The strut 4-1 that spring I2 is sleeved on pallet 4 bottoms goes up and joins with pallet 4 and knob 1 respectively, for ease of to spring I2 location, also is provided with the annular groove 1-1 of mounting spring I2 on the knob 1, and spring I2 is placed in the annular groove 1-1.See shown in Figure 1, compressing tablet 9 one ends are connected cover plate 12, the other end of compressing tablet 9 joins with the back-moving spring 11 that is arranged on the cover plate 12, and compressing tablet 9 bottoms have contact, and this contact is corresponding with the cavity of supporting disk 7, can reset for making compressing tablet 9, also be set with spring 8 on the contact of compressing tablet 9 bottoms, when the ball 5 at pallet 4 tops placed in the cavity of supporting disk 7, ball 5 was crimped on the contact of compressing tablet 9, made compressing tablet 9 depress the moving contact 10-6 of sensitive switch 10 and connected circuit.

Sensitive switch 10 of the present utility model can adopt general sensitive switch.This sensitive switch 10 also can be as shown in Figure 1, comprise fixed contact 10-4, moving contact 10-6, shell fragment 10-5 and quiet pin sheet 10-3 and pin sheet 10-2, fixed contact 10-4 is fixedly connected on the mount pad of quiet pin sheet 10-3, the moving contact 10-6 corresponding with fixed contact 10-4 is fixed on the shell fragment 10-5, and shell fragment 10-5 is installed in the notch of pin sheet 10-2 bottom, and the moving contact 10-6 of shell fragment 10-5 often engages with the stiff end of compressing tablet 9, for shell fragment 10-5 is resetted rapidly, the two ends of extension spring 10-1 are connected on compressing tablet 9 and the shell fragment 10-4, when compressing tablet 9 is depressed shell fragment 10-5, moving contact 10-6 on the shell fragment 10-5 is engaged with fixed contact 10-4 rapidly, and turning circuit.

The utility model is installed quickly and easily for making cover plate 12, supporting disk 7 and housing 3, supporting disk 7 also has the chimb 7-1 of two symmetries, these two chimb 7-1 are arranged in the cover plate 12 associated notch 12-1, and two radial projection 1 2-2 are connected in the draw-in groove 3-1 of housing 3 and constitute quick fixation structure on the cover plate 12.

When main frame is not worked, see that knob 1 shown in Figure 2 is under action of gravity, be positioned at the bottom of housing 3, knob 1 will not move on the pallet 4, so ball 5 does not have the contact crimping with compressing tablet 9, compressing tablet 9 is in free state, and the dynamic and static contact of sensitive switch 10 is in the state of normal separation, and power supply or circuit disconnect.As shown in Figure 3 after the main frame run-off the straight, then ball 5 is with the lopsidedness of its gravity to pallet 4, do not contact with contact on the compressing tablet 9, and compressing tablet 9 is in free state, and the dynamic and static contact of sensitive switch 10 is in the state of normal separation, deenergization or circuit.

See shown in Figure 4ly, when host work, depress knob 1, knob 1 promotes to move on the pallet 4 compression spring I2, ball 5 is delivered in the cavity of supporting disk 7, and ball 5 withstands compressing tablet 9, and compressing tablet 9 is depressed the moving contact 10-6 of sensitive switch again, moment energized or circuit.See shown in Figure 5, this moment, main frame tilted or when falling, ball 5 under the effect of its gravity with housing 3 tilt displacements, the minimum point place of ball 5 between pallet 4 and supporting disk 7, because ball 5 has departed from the cavity of supporting disk 7, and compressing tablet 9 is set back, sensitive switch moment disconnection, cut off the electricity supply or circuit, reach the purpose of self-locking.

Claims

1, a kind of miniature totally-enclosed self-locking anti-dumping switch, it is characterized in that: comprise the knob (1) that is arranged on sensitive switch (10), supporting disk (7), ball (5), pallet (4), the spring II (6) in the housing (3) and is connected pallet (4) bottom, be fixedly connected on sensitive switch (10) on the cover plate (12) and be positioned at the top of housing (3), cover plate (12) is connected on the housing (3); Its top of pallet (4) that has strut (4-1) is provided with ball (5), and spring II (6) is arranged on pallet (4) and has between the supporting disk (7) of cavity; The spring I (2) that is sleeved on the strut (4-1) joins with pallet (4) and knob (1) respectively, and knob (1) is connected the bottom that housing (3) were gone up and extended to pallet (4); It is corresponding with the cavity of supporting disk (7) that one end is connected the contact of compressing tablet (9) its underpart on the cover plate (12), be positioned at the contact crimping that the ball (5) at pallet (4) top places the cavity and the compressing tablet (9) of supporting disk (7), compressing tablet (9) is depressed the moving contact of sensitive switch (10) and is connected circuit.

2, miniature totally-enclosed self-locking anti-dumping switch according to claim 1, it is characterized in that: described sensitive switch (10) comprises fixed contact (10-4), moving contact (10-6), shell fragment (10-5) and quiet pin sheet (10-3) and pin sheet (10-2), fixed contact (10-4) is fixedly connected on the mount pad of quiet pin sheet (10-3), the shell fragment (10-5) that is fixed with moving contact (10-6) is connected on the pin sheet (10-2), and the moving contact (10-6) of shell fragment (10-5) often engages with the stiff end of compressing tablet (9), and the two ends of extension spring (10-1) are connected on compressing tablet (9) and the shell fragment (10-5).

3, miniature totally-enclosed self-locking anti-dumping switch according to claim 1 is characterized in that: described pressing plate (9) other end joins with the back-moving spring (11) that is arranged on the cover plate (12).

4, according to the described miniature totally-enclosed self-locking anti-dumping switch in one of claim 1 or 2 or 3, it is characterized in that: also be set with spring (8) on the contact of described compressing tablet (9) bottom.

5, miniature totally-enclosed self-locking anti-dumping switch according to claim 1, it is characterized in that: the card of described pallet (4) is inner conical surface or ball face.

6, miniature totally-enclosed self-locking anti-dumping switch according to claim 1, it is characterized in that: described supporting disk (7) also has the chimb (7-1) of two symmetries, and two chimbs (7-1) are arranged in the associated notch of cover plate (12) (12-1), and two radial projection (12-2) on the cover plate (12) are connected to the interior formation of draw-in groove (3-1) quick fixation structure of housing (3).

7, miniature totally-enclosed self-locking anti-dumping switch according to claim 1 is characterized in that: the annular groove (1-1) that also is provided with mounting spring I (2) on the described knob (1).