CN103661052B

CN103661052B - The variable rigid bus pull ring of chemical conversion

Info

Publication number: CN103661052B
Application number: CN201210354708.8A
Authority: CN
Inventors: 冯静
Original assignee: Individual
Current assignee: Jiangsu Hanli New Material Co ltd
Priority date: 2012-09-23
Filing date: 2012-09-23
Publication date: 2017-11-07
Anticipated expiration: 2032-09-23
Also published as: CN103661052A

Abstract

The present invention relates to the variable rigid bus pull ring of chemical conversion of one kind, it is characterized in that the retainer ring in bus cross bar is connected with a bulb bracelet；Extension spring and splined member are set in retainer ring；Splined member is made up of spline, rubber spline and steel cable, and the center of rubber spline is run through in one end of steel cable, is connected to the upper end of spline, the other end of steel cable is connected with the pull bar on bulb bracelet.When pulling pull bar, steel cable dragging spline enters in the spline of bulb bracelet, and bulb bracelet, by the connection of spline, is fixed as one with retainer ring；When hand releasing lever, bulb bracelet can be in retainer ring lower swing.Beneficial effect：When holding draw ring, draw ring turns into rigid, and can not be rotated around the axis of itself, just as holding fixture, easily makes the stable body of standee.And when hand unclamps draw ring, draw ring can be rocked, when tall passenger encounters draw ring, will not be come to harm.

Description

The variable rigid bus pull ring of chemical conversion

Technical field

The present invention relates to a kind of vehicle accessory, the draw ring that the passenger in more particularly to a kind of public transit vehicle uses.

Background technology

At present, a kind of draw ring as shown in Figure 1 is generally installed in public transit vehicle.The people in compartment that stand can be held by hand Ring is strained at, to maintain people to balance, in order to avoid fall down.The retainer ring 2 on the top of the draw ring is fixed on the cross bar 1 in compartment, bottom It is a bracelet 3 for supplying passenger's handgrip, bracelet is connected with retainer ring nylon tape 9.The reason for being flexible coupling with nylon tape be in order that When tall head of passenger encounters draw ring, it is unlikely to the accident of being damaged.But in the traveling of bus, on stopping, opening It is dynamic, bring to a halt, because draw ring is that nylon tape is flexible coupling, stands and catch the passenger of bracelet all to rock, although be difficult to fall down, but not Stable rocking makes people very uncomfortable.But if what is caught is fixture, body is just difficult to rock, and can effortlessly maintain very much body Body is balanced.

Number of patent application 200910046136.5 discloses a kind of bus pull ring, and the bus pull ring uses flexibility not Ventilative material makes, and wherein retainer ring, connecting portion, ring-like draw ring have fluid-filled in the cavity that is interconnected, cavity for inside Material.This bus pull ring has freely to be moved when not held by passenger on cross bar, is fixed on when holding on cross bar The advantage of support is provided for passenger.But made due to its flexible material, when holding the draw ring, it can only be controlled on cross bar not Energy movement, and bus is brought to a halt on stopping, starting, part below the cross bar of draw ring can not bear impulsion power, before still wanting Double swerve afterwards.

Number of patent application 201110224248.2 discloses a kind of draw ring with latch, when holding the draw ring, although it Will not bend in vertical direction, but the handle still will around latch axis rotate, passenger still arduously to prevent because The disequilibrium for body rotations.

The content of the invention

The purpose of the present invention is the defect for overcoming above-mentioned prior art, proposes such a bus pull ring：Hold draw ring When, draw ring turns into what is rigidly fixed, and can not be rotated around the axis of itself.When hand unclamps draw ring, draw ring is at will to rock , when tall passenger encounters draw ring, it will not come to harm.

What the present invention was realized in：It includes the retainer ring being fixed on bus cross bar, it is characterised in that described solid Determine ring with a bulb bracelet to be connected；It is provided with the bus cross bar in transitional pore, the retainer ring and cavity and spline is set, It is provided through in the extension spring of bus cross bar transitional pore, spline being provided with splined member in cavity；The splined member is It is made up of spline, rubber spline and steel cable, the center of rubber spline is run through in spline and the connection of rubber spline, one end of steel cable, even The upper end of spline is connected to, the other end of steel cable is connected with the pull bar on bulb bracelet；The stator of extension spring one end is connected to, One end of spring is fixed in the groove of retainer ring, the other end of extension spring is connected with spline；Spline is provided with bulb bracelet Groove, splined member through retainer ring spline and bulb bracelet spline in；

The application method of said apparatus is：When the bottom for pulling bulb bracelet, pull bar compression is descending, passes through rubber spline Guiding, steel cable dragging spline enter bulb bracelet spline in, extension spring also therewith downwards elongate；So, bulb hand Ring, by the connection of spline, is fixed as one with retainer ring；When hand releasing lever, spline is pulled out bulb bracelet by extension spring Spline, bulb bracelet is connected with retainer ring by rubber spline；Due to rubber spline and the elasticity of extension spring, bulb bracelet Can be in retainer ring lower swing.

The present invention has the advantages that compared with prior art：

When holding draw ring, draw ring turns into rigid, and can not be rotated around the axis of itself, just as holding fixture, Easily make the stable body of standee.And when hand unclamps draw ring, draw ring can be rocked, and tall passenger encounters drawing During ring, it will not come to harm.

Brief description of the drawings

With reference to figure, the present invention is further described with embodiment.

Fig. 1 is the schematic perspective view of the bus pull ring of prior art.

Fig. 2 is the schematic perspective view of the use state 1 of the present invention.

Fig. 3 is Fig. 2 cross section view.

Fig. 4 is the schematic perspective view of the use state 2 of the present invention.

Fig. 5 is Fig. 4 cross section view.

Fig. 6 is the decomposing schematic representation of the present invention, wherein to understand retainer ring internal state, having carried out section view.

Fig. 7 is the A portions enlarged drawing in Fig. 6.

Fig. 8 is the decomposing schematic representation of splined member.

Fig. 9 is the diagrammatic cross-section of rubber spline.

Figure 10 is the schematic cross-section of steel cable.

Embodiment

See Fig. 5, the bottom for the retainer ring 2 being fixed on bus cross bar 1 is connected with the bulb 31 in a bulb bracelet 3. It is provided with bus cross bar 1 in transitional pore 11, retainer ring 2 and cavity 21 and spline 22 (see Fig. 6, Fig. 7) is set, is set in cavity 21 Have and splined member 5 is provided with the extension spring 23 through bus cross bar transitional pore 11, spline；(see Fig. 6, Fig. 7 and Fig. 8) flower Key asembly 5 is made up of spline 51, rubber spline 52 and steel cable 53, and spline 51 and rubber spline 52 link into an integrated entity, junction Both can be bonded with super glue, then connection effect is more preferable.The center of rubber spline is run through in one end of steel cable 53, is connected to The upper end of spline 51, the other end of steel cable 53 is connected with the pull bar 33 on bulb bracelet.The section of steel cable 53 is as shown in Figure 10, it It is made up of many spiral shape finer wires, is a kind of material for making safety protection window, its intensity is larger, but can arbitrarily bend, its End can be welded or be riveted with hemispherical die 54.One end of extension spring 23 is welded with one piece of stator 24, and stator 24 is embedded in Fixed in the groove 25 of retainer ring, the other end is connected with spline 51 and (can use welding method)；Spline is provided with bulb bracelet 3 Groove 32, splined member 5 is in the spline 22 of retainer ring and the spline 32 of bulb bracelet.

Bulb shakes hands 3 in the absence of external forces, in plumbness (as shown in Figure 2 and Figure 3).At this time touch bulb Bracelet 3, due to rubber spline 52 and the elasticity of extension spring 23, bulb bracelet 3 can be in the lower swing of retainer ring 2, can also be around 53 axis oscillating of steel cable, therefore it is difficult to cause the hardness of passenger to damage accident.When pull bulb bracelet 3 bottom (see Fig. 5), pull bar 33 be pressurized it is descending, pass through the guiding of rubber spline 52, steel cable 53 dragging spline 51 enter bulb bracelet spline In 32, extension spring 23 is also elongated downwards therewith；So, bulb bracelet 3 is fixed as with retainer ring 2 by the connection of spline 51 One；When hand releasing lever 33, extension spring 23 pulls out spline 51 spline 32 (see Fig. 3) of bulb bracelet, so, bulb Bracelet 3 with retainer ring 2 is connected by rubber spline 52；Because rubber spline 52 and extension spring 23 are flexible, bulb hand Ring can also have rotated in the lower swing of retainer ring 2 around the axis of steel cable 53.Although the corner of this rotation is not very big, But for avoiding passenger's rigid collision enough.

Claims

1. a kind of variable rigid bus pull ring of chemical conversion, it includes the retainer ring being fixed on bus cross bar, and its feature exists It is connected in the retainer ring with a bulb bracelet；Transitional pore is provided with the bus cross bar；Cavity is set in the retainer ring And spline, it is provided through in cavity in the extension spring of bus cross bar transitional pore, spline being provided with splined member；The flower Key asembly is made up of spline, rubber spline and steel cable, and the steel cable is made up of many spiral shape finer wires, spline and rubber flower Key is connected, and the center of rubber spline is run through in one end of steel cable, is connected on the upper end of spline, the other end and bulb bracelet of steel cable Pull bar connection；The stator of extension spring one end is connected to, one end of spring is fixed in the groove of retainer ring, extension spring The other end be connected with spline；Spline, spline and bulb hand of the splined member through retainer ring are provided with bulb bracelet In the spline of ring.