CN103661052A

CN103661052A - Bus pull ring capable of changing into rigid pull ring

Info

Publication number: CN103661052A
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: 2014-03-26
Anticipated expiration: 2032-09-23
Also published as: CN103661052B

Abstract

The invention relates to a bus pull ring capable of changing into a rigid pull ring. The bus pull ring capable of changing into the rigid pull ring is characterized in that a fixing ring of a bus cross bar is connected with a ball head handle ring; an extension spring and a spline assembly are arranged inside the fixing ring; the spline assembly is formed by a spline, a rubber spline and a steel rope; one end of the steel rope penetrates the center of the rubber spline to be connected to the upper end of the spline; the other end of the steel rope is connected with a pull rod of the ball head handle ring. According to the bus pull ring capable of changing into the rigid pull ring, when a hand pulls the pull rod, the steel rope drags the spline into a spline groove of the ball head handle ring and the ball head handle ring and the fixing ring are connected into a whole through the spline and when the hand loosens the pull rod, the ball head handle ring can swing under the fixing ring. The bus pull ring capable of changing into the rigid pull ring has the advantages of enabling a standing passenger to stabilize body due to the fact that when the hand holds the pull ring, the pull ring which changes into the rigid pull ring cannot rotate around self-axis and the passenger feels like holding a fixed object and enabling a tall passenger to be not injured when touched the pull ring due to the fact that the pull ring can swing when the hand loosens the pull ring.

Description

Can be varied to the bus pull ring of rigidity

Technical field

The present invention relates to a kind of vehicle accessory, particularly relate to the draw ring that the passenger in 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 that stand in compartment can use hand grip draw ring, to maintain people's balance, in order to avoid fall down.The set collar 2 on the top of this draw ring is fixed on the cross bar 1 in compartment, and bottom is a bracelet 3 for passenger's handgrip, and bracelet is connected with nylon tape 9 with set collar.The reason being flexible coupling with nylon tape is when making tall head of passenger encounter draw ring, is unlikely to be subject to the accident of damaging.But in the travelling of bus, stop whenever, start, sudden stop, because draw ring is that nylon tape is flexible coupling, is standing and is catching the passenger of bracelet all can rock, although be difficult for falling down, unsettled rocking makes people very uncomfortable.If but what catch is fixture, body is just difficult for rocking, and can maintain very effortlessly balance.

Number of patent application 200910046136.5 discloses a kind of bus pull ring, and described bus pull ring adopts flexible airtight material to make, and wherein set collar, connecting portion, ring-like draw ring are that inside has the cavity of being interconnected, fluid-filled material in cavity.This bus pull ring has freedom when not held by passenger and moves on cross bar, is fixed on the advantage providing support for passenger on cross bar when holding.But make due to its flexible material, while holding this draw ring, it can only be controlled on cross bar and can not move, and bus stops whenever, starts, sudden stop, the cross bar of draw ring partly cannot bear impulsion power below, still will all around rock.

Number of patent application 201110224248.2 discloses a kind of draw ring with latch, while holding this draw ring, although it in vertical direction can be crooked, this handle still will rotate around the axis of latch, and passenger still will prevent the lack of equilibrium because health rotates arduously.　

Summary of the invention

The object of the invention is to overcome the defect of above-mentioned prior art, propose a kind of like this bus pull ring: while holding draw ring, draw ring becomes and rigidly fixes, and can not rotate around the axis of self.When hand unclamps draw ring, draw ring can at will rock, and when tall passenger encounters draw ring, can not come to harm.

The present invention is achieved in that it comprises the set collar being fixed on bus cross bar, it is characterized in that described set collar is connected with a bulb bracelet; In described bus cross bar, be provided with transitional pore, cavity and spline are set in described set collar, in cavity, be provided with the extension spring through bus cross bar transitional pore, in spline, be provided with spline assembly; Described spline assembly is comprised of spline, rubber spline and steel cable, spline and rubber spline joint, and the center of rubber spline is run through in one end of steel cable, is connected in the upper end of spline, and the other end of steel cable is connected with the pull bar on bulb bracelet; Be connected to the fixed plate of extension spring one end, one end of spring be fixed in the groove of set collar to the other end of extension spring and spline joint; In bulb bracelet, be provided with spline, spline assembly is in the spline of set collar and the spline of bulb bracelet;

The using method of said apparatus is: when pulling the bottom of bulb bracelet, pull bar pressurized is descending, and by the guiding of rubber spline, steel cable drags in the spline that spline enters bulb bracelet, and extension spring also elongates downwards thereupon; Like this, bulb bracelet and set collar are connected by spline, are fixed as one; When hand releasing lever, the spline of bulb bracelet pulled out spline by extension spring, and bulb bracelet and set collar are by rubber spline joint; Due to the elasticity of rubber spline and extension spring, bulb bracelet can be at set collar lower swing.

The present invention compared with prior art has following beneficial effect:

While holding draw ring, draw ring becomes rigidity, and can not rotate around the axis of self, just as holding fixture, easily make standee stablize health.And when hand unclamps draw ring, draw ring can rock, when tall passenger encounters draw ring, can not come to harm.

Accompanying drawing explanation

Below in conjunction with figure and embodiment the present invention is further described.

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

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

Fig. 3 is the cross section view of Fig. 2.

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

Fig. 5 is the cross section view of Fig. 4.

Fig. 6 is decomposing schematic representation of the present invention, wherein, for knowing set collar internal state, analyses and observe.

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

Fig. 8 is the decomposing schematic representation of spline assembly.

Fig. 9 is the generalized section of rubber spline.

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

The specific embodiment

See Fig. 5, the bottom that is fixed on the set collar 2 on bus cross bar 1 is connected with the bulb 31 in a bulb bracelet 3.In bus cross bar 1, be provided with transitional pore 11, cavity 21 be set in set collar 2 and spline 22(is shown in Fig. 6, Fig. 7), in cavity 21, be provided with the extension spring 23 through bus cross bar transitional pore 11, in spline, be provided with spline assembly 5; (seeing Fig. 6, Fig. 7 and Fig. 8) spline assembly 5 is comprised of spline 51, rubber spline 52 and steel cable 53, and spline 51 and rubber spline 52 link into an integrated entity, and junction can be bonding by both by super glue, connects better effects if.The center of rubber spline is run through in one end of steel cable 53, is connected in the upper end of spline 2, and the other end of steel cable 53 is connected with the pull bar 33 on bulb bracelet.As shown in figure 10, it is comprised of many helix finer wires in the cross section of steel cable 53, is a kind of material of making safety protection window, and its intensity is larger, but can be crooked arbitrarily, and its end can or be riveted with 54 welding of semisphere die.One end of extension spring 23 is welded with a fixed plate 24, in the groove 25 of fixed plate 24 embedding set collars, is fixed, and the other end is connected (can use welding method) with spline 51; In bulb bracelet 3, be provided with spline 32, spline assembly 5 runs through in the spline 22 of set collar and the spline 32 of bulb bracelet.

Bulb handle 3 is without external force in the situation that, in plumbness (as shown in Figure 2 and Figure 3).At this time touch bulb bracelet 3, due to the elasticity of rubber spline 52 and extension spring 23, bulb bracelet 3 can be at set collar 2 lower swings, also can, around 53 axis oscillating of steel cable, therefore be difficult for causing passenger's the rigid accident of damaging.When pulling the bottom (see figure 5) of bulb bracelet 3, pull bar 33 pressurizeds are descending, and by the guiding of rubber spline 52, steel cable 53 drags in the spline 32 that spline 51 enters bulb bracelet, and extension spring 23 also elongates downwards thereupon; Like this, bulb bracelet 3 and set collar 2 are connected by spline 51, are fixed as one; When hand releasing lever 33, the spline 32(that extension spring 23 is pulled out bulb bracelet by spline 51 is shown in Fig. 3), like this, bulb bracelet 3 is to be connected by rubber spline 52 with set collar 2; Because rubber spline 52 and extension spring 23 have elasticity, bulb bracelet can be at set collar 2 lower swings, also can rotate around the axis of steel cable 53.

Although the corner of this rotation is not very large, enough for avoiding passenger's rigid collision.

Claims

1. can be varied to a bus pull ring for rigidity, it comprises the set collar being fixed on bus cross bar, it is characterized in that described set collar is connected with a bulb bracelet; In described bus cross bar, be provided with transitional pore; Cavity and spline are set in described set collar, in cavity, are provided with the extension spring through bus cross bar transitional pore, in spline, be provided with spline assembly; Described spline assembly is comprised of spline, rubber spline and steel cable, spline and rubber spline joint, and the center of rubber spline is run through in one end of steel cable, is connected in the upper end of spline, and the other end of steel cable is connected with the pull bar on bulb bracelet; Be connected to the fixed plate of extension spring one end, one end of spring be fixed in the groove of set collar to the other end of extension spring and spline joint; In bulb bracelet, be provided with spline, spline assembly is in the spline of set collar and the spline of bulb bracelet.