CN202125719U

CN202125719U - Safety protection device for electric lifting rod

Info

Publication number: CN202125719U
Application number: CN2011201563443U
Authority: CN
Inventors: 黄志铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-17
Filing date: 2011-05-17
Publication date: 2012-01-25
Anticipated expiration: 2021-05-17

Abstract

The utility model relates to the technical field of articles for daily use, in particular to a safety protection device for an electric lifting rod. One end of the lifting rod is provided with a driving device, and the other end of the lifting rod is connected with a buffer brake device. The buffer brake device comprises an extensible inner rod, an extensible outer rod and a brake switch, wherein one end of the extensible inner rod is connected with the lifting rod, the extensible outer rod is connected with the outer side of the extensible inner rod, and the brake switch is positioned in the extensible outer rod. An elastic mechanism is in sleeve connection with the extensible inner rod, and a brake block is arranged on the elastic mechanism. The safety protection for the electric lifting rod can slowly adjust lying angles of a bed body. Therefore, when a bed is adjusted downwards, persons or other obstacles under the bed can leave as soon as possible. If persons or other obstacles cannot leave timely, power supply can be cut off timely. Thus, safety of life and property of persons is guaranteed.

Description

A kind of Safeguard of electric lifting/lowering bar

Technical field

The utility model relates to technical field of living goods, refers in particular to a kind of through increasing the device of buffer-braking mechanism with the safety protection of realization electric lifting/lowering bar.

Background technique

Along with the development of society, bed is not only the furniture that people couch rest, sleep, and becomes one of decoration of household; For catering to different Consumers' different demands, the kind of bed also emerges in an endless stream, and wherein, the appearance of rise-fall type beddo has overcome common bed and can't adjust the angle that couches arbitrarily being fit to the various Consumers shortcoming of needs that couches, and received liking of Consumer.Yet; This type of beddo is to oppress its elastic mechanism by force through its elevator mechanism to realize when descending, and compressing makes the beddo downward modulation still can descend the cramping obstacle by force when running into obstacle by force; If there is the people to be in beddo falling portion below when descending; Weighed wounded easily, even even more serious consequence occurred, existed certain potential safety hazard.

Summary of the invention

For addressing the above problem, it is a kind of simple in structure that the utility model provides, shrink slowly, and the device of the safety protection of electric lifting/lowering bar that can oneself's braking when running into obstacle.

For realizing above-mentioned purpose; The technological scheme that the utility model adopts is: be provided with drive unit at lifting bar one end, the other end of said lifting bar is connected with the buffer-braking device, the flexible interior bar that this buffer-braking device is connected with lifting bar by an end; Be connected in the flexible outer bar in the flexible interior bar outside; And the inner brake switch formation of flexible outer bar, being socketed with elastic mechanism on the said flexible interior bar, this elastic mechanism is provided with brake slipper.

Said flexible outer rod tube shape housing, this flexible outer bar one side outwards is extruded with mounting groove by inner chamber, and brake switch of this flexible outer bar inside is installed in this mounting groove, and this opening end that stretches outer bar runs through through mounting hole and is connected with a backing pin.

The inner brake switch of said flexible outer bar is a contact switch, and the contact block of this brake switch exceeds the notch of mounting groove, and the conducting end of this brake switch is electrically connected in the power circuit.

Said flexible outer bar with said flexible in the bar end center that is connected have a through hole, this shape of through holes is consistent with the outer rod-shape that stretches, the size of this through hole is less than the size of the outer rod end surface of stretching.

Said flexible interior bar has fixture block with the connecting end of the outer bar that stretches, and the diameter of this fixture block is greater than the aperture of stretching outer rod through-hole, and the backing pin that this flexible interior bar puts on the length of flexible outer bar inner chamber and the outer bar that stretches is consistent to the outer bar bottom surface distance of stretching.

Said flexible in the elastic mechanism of bar be a damping spring, the release length of this elastic mechanism with flexible in pole length consistent, brake slipper of bar was arranged at the relevant position of elastic mechanism brake switch when being urged to critical localisation in this was flexible.

Be provided with DC micromotor and turbine speed reducer in the said drive unit, this turbine speed reducer is connected with lifting bar through worm screw.

The beneficial effect of the utility model is: the buffer-braking device cooperates the slowly flexible adjustment bed of the lifting bar body angle that can couch; Make bed at following timing; People or other obstacles below being not intended to be in can detach as early as possible; Being used of brake switch in the buffer-braking device and brake slipper, the people below having guaranteed to be not intended to be in or other obstacles can in time be cut off the electricity supply in the time can't in time detaching and quit work, with guarantor's the security of the lives and property.

Description of drawings

Fig. 1 is the half sectional view of the utility model.

Fig. 2 is the half sectional view under the utility model Standard taper state.

Fig. 3 is the half sectional view of the utility model contraction state when running into obstacle.

Fig. 4 is the partial enlarged drawing at A place among Fig. 3.

Fig. 5 is the three-dimensional erection drawing of the utility model.

The drawing reference numeral explanation:

1. lifting bar; 2. drive unit; 3. buffer-braking device; 31. bar in flexible;

311. elastic mechanism; 312. brake slipper; 313. fixture block; 32. flexible outer bar;

321. mounting groove; 322. backing pin; 323. through hole; 33. brake switch;

331. contact block; 332. conducting end.

Embodiment

See also shown in Fig. 1-5; The utility model is about a kind of Safeguard of electric lifting/lowering bar; Be provided with drive unit 2 at lifting bar 1 one ends, the other end of lifting bar 1 is connected with buffer-braking device 3, the flexible interior bar 31 that this buffer-braking device 3 is connected with lifting bar 1 by an end; Be connected in the flexible outer bar 32 in flexible interior bar 31 outsides; And brake switches 33 formations of flexible outer bar 32 inside, being socketed with elastic mechanism 311 on the flexible interior bar 31, this elastic mechanism 311 is provided with brake slipper 312.

The Safeguard of a kind of electric lifting/lowering bar that the utility model disclosed; Its flexible outer bar 32 tubular shells; Should flexible outer bar 32 1 sides outwards be extruded with mounting groove 321 by inner chamber, these flexible outer bar 32 inner brake switches 33 are installed in this mounting groove 321, and this brake switch 33 is a contact switch; The contact block 331 of brake switch 33 exceeds the notch of mounting groove 321; Its conducting end 332 is electrically connected in the power circuit, and opening end of this flexible outer bar 32 runs through through mounting hole and is connected with a backing pin 322, and the flexible outer bar 32 end center that is connected with the said interior bar 31 that stretches has a through hole 323; These through hole 323 shapes are consistent with flexible outer bar 32 shapes, and the size of this through hole 323 is less than the size of flexible outer bar 32 end faces.

The Safeguard of a kind of electric lifting/lowering bar that the utility model disclosed; Bar 31 had fixture block 313 with the connecting end of flexible outer bar 32 in it was flexible; The diameter of this fixture block 313 is greater than the aperture of flexible outer bar 32 through holes 323; Length and the backing pin 322 on the flexible outer bar 32 that the interior bar 31 that should stretch puts in outer bar 32 inner chambers that stretch arrive outer bar 32 bottom surfaces of stretching apart from consistent; The elastic mechanism 311 of bar 31 is a damping spring in flexible, the release length of this elastic mechanism 311 with flexible in bar 31 length consistent, brake slipper 312 of bar 31 was arranged at the relevant position of elastic mechanism 311 brake switch 33 when being urged to critical localisation in this was flexible.

The Safeguard of a kind of electric lifting/lowering bar that the utility model disclosed is provided with DC micromotor and turbine speed reducer in its drive unit 2, this turbine speed reducer is connected with lifting bar 1 through worm screw.

The Safeguard of a kind of electric lifting/lowering bar that the utility model disclosed is if be used in beddo with it, when running into obstacle in the lifting bar 1 decline process; As be not intended to be in user or other people of below, flexible outer bar 32 at first stops action, flexible in bar 31 because the drive of direct current generator through the turbine speed reducer continues contraction; Bar 31 is compressed to elastic mechanism 311 near elastic region in it's time to stretch; Brake slipper 312 on the elastic mechanism 311 touches the contact block 331 of brake switch 33, and brake switch 33 cuts off dc motor power immediately, and lifting bar 1 quits work; So far, with the people's that guarantees beddo falling portion below life safety.

Above mode of execution only is that the preferred implementation of the utility model is described; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that the common engineers and technicians in related domain make the technological scheme of the utility model all should fall in the protection domain that claims of the utility model confirm.

Claims

1. the Safeguard of an electric lifting/lowering bar; Be provided with drive unit at lifting bar one end, it is characterized in that: the other end of said lifting bar is connected with the buffer-braking device, the flexible interior bar that this buffer-braking device is connected with lifting bar by an end; Be connected in the flexible outer bar in the flexible interior bar outside; And the inner brake switch formation of flexible outer bar, being socketed with elastic mechanism on the said flexible interior bar, this elastic mechanism is provided with brake slipper.

2. the Safeguard of a kind of electric lifting/lowering bar according to claim 1; It is characterized in that: said flexible outer rod tube shape housing; Should flexible outer bar one side outwards be extruded with mounting groove by inner chamber; Should be installed in this mounting groove by the inner brake switch of flexible outer bar, this opening end that stretches outer bar runs through through mounting hole and is connected with a backing pin.

3. the Safeguard of a kind of electric lifting/lowering bar according to claim 2; It is characterized in that: the inner brake switch of said flexible outer bar is a contact switch; The contact block of this brake switch exceeds the notch of mounting groove, and the conducting end of this brake switch is electrically connected in the power circuit.

4. the Safeguard of a kind of electric lifting/lowering bar according to claim 1; It is characterized in that: the said flexible outer bar end center that is connected with the said interior bar that stretches has a through hole; This shape of through holes is consistent with flexible outer rod-shape, and the size of this through hole is less than the size of flexible outer rod end surface.

5. the Safeguard of a kind of electric lifting/lowering bar according to claim 4; It is characterized in that: said flexible interior bar has fixture block with the connecting end of flexible outer bar; The diameter of this fixture block is greater than the aperture of flexible outer rod through-hole, and length and the backing pin on the flexible outer bar that this interior bar that stretches puts in the outer bar inner chamber that stretches arrive the outer bar bottom surface of stretching apart from consistent.

6. the Safeguard of a kind of electric lifting/lowering bar according to claim 5; It is characterized in that: the elastic mechanism of said flexible interior bar is a damping spring; The release length of this elastic mechanism with flexible in pole length consistent, brake slipper of bar was arranged at the relevant position of elastic mechanism brake switch when being urged to critical localisation in this was flexible.

7. according to the Safeguard of each described a kind of electric lifting/lowering bar of claim 1-6, it is characterized in that: be provided with DC micromotor and turbine speed reducer in the said drive unit, this turbine speed reducer is connected with lifting bar through worm screw.