CN104527843A

CN104527843A - Automatic raising foot support

Info

Publication number: CN104527843A
Application number: CN201410732365.3A
Authority: CN
Inventors: 周钢
Original assignee: Suzhou Xinhang Microelectronics Co Ltd
Current assignee: Suzhou Xinhang Microelectronics Co Ltd
Priority date: 2014-12-06
Filing date: 2014-12-06
Publication date: 2015-04-22

Abstract

The invention relates to an automatic raising foot support. The automatic raising foot support comprises a main board, a support rod, a pull ring and a fixing rotation shaft, wherein an arc slide rail is formed in the main board, a clamp groove is formed in the lower end of the inner side of the arc slide rail, an electromagnetic element is assembled in the bottom of the clamp groove, one end of the support rod is coupled with the fixing rotation shaft, a slide rod sleeves the support rod in slide mode, the axis of the slide rod is vertical to the axis of the support rod, the slide rod is vertical to a plane where the main board is located, strong magnetic sheets are distributed on one side face of the slide rod, adjacent to the electromagnetic element, poles of the strong magnetic sheets and the electromagnetic element, of the same polarity, repel one another when the electromagnetic element is energized, a fixing buckle is further assembled on the main board, one end of the pull ring is connected with the fixing buckle, and the other end of the pull ring is connected with the slide rod. The automatic raising foot support can automatically return to a horizontal position, and saves labor when laid down.

Description

From lifting heel brace

Technical field

The present invention relates to a kind of electric accessory motor, especially, is a kind of heel brace.

Background technology

Along with the promotion of environmental protection, battery-driven car becomes the main tool of short distance trip; In order to provide more lasting electric power and more mounting space, it is increasing that battery-driven car does, and therefore car body weight is also increasing and the weight of car body mainly concentrates on rear portion; Due to when parking, promoting battery-driven car, need trailing wheel unsettled, along with the increase of car weight, put down and lift heel brace when parking, go-cart and also become more and more difficult; The heel brace of traditional electrical motor-car is when falling, and put from level orientation and rotate again to settling position to vertical position, this anglec of rotation, more than 90 °, falls after rise more by a small margin after the trailing wheel of battery-driven car is raised up to extreme higher position, reaches stabilized conditions; Same when lifting heel brace, trailing wheel need be lifted and stir heel brace and put down trailing wheel again, the complicated and operation effort of process.

Summary of the invention

For the problems referred to above, the invention provides a kind of from lifting heel brace, this heel brace can automatically return to level attitude, also more laborsaving when putting down heel brace.

For solving the problem, the technical solution adopted in the present invention is: this includes mainboard, pole, extension spring and fixed rotating shaft from lifting heel brace; Described mainboard offers the circular arc slideway that is the center of circle with described fixed rotating shaft, and leg-of-mutton any interior angle that the upper end of this circular arc slideway, lower end and fixed rotating shaft 3 form all is less than 90 °; Lower end inside described circular arc slideway offers the draw-in groove that axis overlaps with the radius of this circular arc slideway, is equipped with and electromagnet element bottom described draw-in groove, and this electromagnet element is connected main switch and power supply successively; One end of described pole is coupling on described fixed rotating shaft, and on this pole, slip cap is provided with the slide bar that can be free to slide along described circular arc slideway, and the axis of this slide bar and the axes normal of described pole and this slide bar are perpendicular to the plane at described mainboard place; The side that described electromagnet pressed close to by this slide bar is placed with the strong magnetic piece of homopolar-repulsion when being energized with this electromagnet element; Described mainboard is also fixedly equipped with a clip, and described extension spring one end connects above-mentioned clip, and the other end connects described slide bar, and described slide bar can along the axis translation of described pole under the tractive of extension spring.

The invention has the beneficial effects as follows: under state of nature, heel brace is in horizontal lifting status under the tractive of described extension spring; When stopping, heel brace is fallen; In described pole dropping process, described slide bar along described circular arc slideway slide downward, and is subject to the tractive of described extension spring all the time, and along with the whereabouts of heel brace, extension spring is elongated, and the traction force that described slide bar is subject to also increases gradually; When described pole is through described chute, described slide bar sticks in described draw-in groove under the tractive of described extension spring, and now pole is fixed and propped up by rear wheels of electric vehicle, and battery-driven car is firmly vertical; When needs promote battery-driven car, only need insert battery-driven car key, closed main switch, starts battery-driven car; Now electromagnet element circuit ON, according to homopolar-repulsion principle, described slide bar is repelled by electromagnet element and ejects described draw-in groove, and now described slide bar is along slideway upward sliding under the tractive of extension spring, and described pole is upwards lifted along slideway under the compressing of battery-driven car gravity simultaneously; When starting battery-driven car, under the tractive of battery-driven car self gravitation and described extension spring, pole returns to level attitude, realizes automatically lifting.

This invention makes full use of the weight of battery-driven car self and the traction force of extension spring, realizes certainly lifting of heel brace, utilizes draw-in groove and electromagnet element to realize the ejection of the fixing of pole and slide bar simultaneously, easy to operate; This invention is particularly useful on Large Electric car, can realize lifting and putting down of heel brace easily.

As preferably, rubber pad is equipped with in described pole bottom; So that increase the friction force on pole and ground, make parking more stable.

As preferably, described pole is that hollow aeronautical material is made; This material can reduce the weight of pole, makes the tractive of described extension spring easier, alleviates the weight of car body simultaneously.

As preferably, described mainboard is also fixed with magneto sensor, described magneto sensor is coupled to power supply, annunciator and main switch, and the described magneto sensor open circuit when main switch is closed, battery-driven car starts; Magneto sensor circuit ON after main switch disconnects; After a stop of the vehicle, main switch disconnects, and magneto sensor is connected; When vehicle stolen, promote time, described slide bar is subjected to displacement; The magnetic field at described magneto sensor place changes, and magneto sensor catches this variable signal and triggered alarm, plays anti-theft feature.

Accompanying drawing explanation

Fig. 1 is that this is from the structural representation lifting a heel brace embodiment.

Fig. 2 is from lifting the cross-sectional schematic of heel brace along A-A line shown in Fig. 1.

Detailed description of the invention

Embodiment

In the embodiment shown in Fig. 1, Fig. 2, this includes mainboard 1, pole 2, extension spring 3 and fixed rotating shaft 4 from lifting heel brace; Described mainboard 1 is fixed on car body trailing wheel place, and described mainboard 1 offers the circular arc slideway 5 that is the center of circle with described fixed rotating shaft 4, and leg-of-mutton any interior angle that the upper end of this circular arc slideway, lower end and fixed rotating shaft 3 form all is less than 90 °; Lower end inside described circular arc slideway 5 offers the draw-in groove 6 that axis overlaps with the radius of this circular arc slideway 5, is equipped with and electromagnet element 61 bottom described draw-in groove 6, and this electromagnet element 61 is connected main switch and power supply successively; Described pole 2 is made for hollow aeronautical material, and one end of described pole 2 to be coupling on described fixed rotating shaft 4 and in the lower end of this pole 2, rubber pad to be housed; On this pole 2, slip cap is provided with the slide bar 21 that can be free to slide along described circular arc slideway 5, and the axis of this slide bar 21 and the axes normal of described pole 2 and this slide bar 21 are perpendicular to the plane at described mainboard 1 place; The side that described electromagnet element 61 pressed close to by this slide bar 21 is placed with the strong magnetic piece 211 of homopolar-repulsion when being energized with this electromagnet element 61; Described mainboard 1 is also fixedly equipped with a clip 7, and described extension spring 3 one end connects above-mentioned clip 7, and the other end connects described slide bar 21, and described slide bar 21 can along the axis translation of described pole 2 under the tractive of extension spring 3; Described mainboard 1 is also fixed with magneto sensor 8, and described magneto sensor 8 is coupled to power supply, annunciator and main switch, and when main switch is closed, battery-driven car starts, the open circuit of described magneto sensor 8; Magneto sensor 8 circuit ON after main switch disconnects.

As shown in the dotted portion in Fig. 1, under state of nature, heel brace is in horizontal lifting status under the tractive of described extension spring 3; When stopping, heel brace is fallen; In described pole 2 dropping process, described pole 2 along described circular arc slideway 5 slide downward, and is subject to the tractive of described extension spring 3 with slide bar 21 all the time; Along with the whereabouts of heel brace, extension spring 3 is elongated, and the traction force that described slide bar 21 is subject to also increases gradually; When described pole 2 is through described chute 6, described slide bar 21 sticks in described draw-in groove 6 along pole 2 axis translation under the tractive of described extension spring 3, now pole 2 is fixed and is propped up by rear wheels of electric vehicle, the rubber pad that battery-driven car stands pole 2 lower end effectively increases pole 2 and the friction force on ground, makes car body more stable; The leg-of-mutton any interior angle formed due to the upper end of this circular arc slideway 5, lower end and fixed rotating shaft 4 three is all less than 90 °, the angle that described pole 2 rotates is less than 90 °, now wheel is only elevated little segment distance and liftoff, compared in traditional heel brace, pole turns over vertical position, and the present invention is more laborsaving when stopping; When needs promote battery-driven car, only need insert battery-driven car key, closed main switch, starts battery-driven car, the now circuit ON at electromagnet element 61 place; According to homopolar-repulsion principle, described slide bar 21 is repelled by electromagnet element 61 and ejects described draw-in groove 6, now described slide bar 61 under the tractive of extension spring 3 along circular arc slideway 5 upward sliding, described pole 2 is upwards lifted along circular arc slideway 5, because this pole 2 is made for hollow aeronautical material under the compressing of battery-driven car gravity simultaneously; This material can reduce the weight of pole 2, makes the tractive of described extension spring 3 easier, alleviates the weight of car body simultaneously; Namely when starting battery-driven car, under the tractive of battery-driven car self gravitation and described extension spring 3, pole 2 returns to level attitude, realizes automatically lifting.

In addition, when being inserted and start battery-driven car by battery-driven car key at every turn, described magneto sensor 8 is in off state; After extracting, the circuit ON at described magneto sensor 8 place, this circuit structure is common structure of the prior art, easily realizes, and reverse control circuit switch, does not repeat at this; When magneto sensor 8 is connected, this magneto sensor 8 records magnetic field size now, when running into the situations such as pilferage, pole 2 can be lifted, the position of the relative magneto sensor 8 of the strong magnetic piece 211 now on described slide bar 21 changes, the magnetic field size at magneto sensor 8 place changes, and magneto sensor 8 touches according to the change of magnetic field size the annunciator that sets out; This structure can realize antitheft and this trigger condition when being the change of slide bar occurrence positions, and warning is more hidden and sensitiveer, there will not be the wrong report caused because of pedestrian's false touch simultaneously.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1., from lifting a heel brace, this includes mainboard (1), pole (2), extension spring (3) and fixed rotating shaft (4) from lifting heel brace; Described mainboard (1) offers the circular arc slideway (5) that is the center of circle with described fixed rotating shaft (4), it is characterized in that: the upper end of this circular arc slideway (5), lower end and fixed rotating shaft (4) three leg-of-mutton any interior angles formed all are less than 90 °; The draw-in groove (6) that axis overlaps with the radius of this circular arc slideway (5) is offered in the lower end of described circular arc slideway (5) inner side, be equipped with and electromagnet element (61) in described draw-in groove (6) bottom, this electromagnet element (61) is connected main switch and power supply successively; One end of described pole (2) is coupling on described fixed rotating shaft (4), be provided with the slide bar (21) that can be free to slide along described circular arc slideway (5) at the upper slip cap of this pole (2), the axis of this slide bar (21) and the axes normal of described pole (2) and this slide bar (21) are perpendicular to the plane at described mainboard (1) place; The side that described electromagnet element (61) pressed close to by this slide bar (21) is placed with the strong magnetic piece (211) of homopolar-repulsion when being energized with this electromagnet element (61); Described mainboard (1) is also fixedly equipped with a clip (7), described extension spring (3) one end connects above-mentioned clip (7), the other end connects described slide bar (21), and described slide bar (21) can along the axis translation of described pole (2) under the tractive of extension spring.

2. according to claim 1 from lifting heel brace, it is characterized in that: described pole (2) is made for hollow aeronautical material.

3. according to claim 2 from lifting heel brace, it is characterized in that: rubber pad is equipped with in described pole (2) bottom.

4. according to claim 1 or 3, certainly lift heel brace, it is characterized in that: on described mainboard (1), be also fixed with magneto sensor (8), described magneto sensor (8) is coupled to power supply, annunciator and main switch, and described magneto sensor (8) is in off state when main switch is closed, battery-driven car starts; Magneto sensor (8) circuit ON after main switch disconnects.