CN201501425U

CN201501425U - Wheel of shopping cart capable of braking on escalator

Info

Publication number: CN201501425U
Application number: CN2009200581080U
Authority: CN
Inventors: 吴振球
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-09
Filing date: 2009-06-09
Publication date: 2010-06-09
Anticipated expiration: 2019-06-09

Abstract

The utility model provides a wheel of a shopping cart capable of braking on an escalator. The wheel comprises a main wheel and a fixed shaft; the fixed shaft comprises a round shaft end, a square shaft end, a middle shaft shoulder, a guide rail and an arc-shaped trough; the main wheel is hinged to the round shaft end; the wheel also comprises an auxiliary wheel, a spring and a brake block; the brake block consists of a shaft end, a base and a braking block that is arranged below the wheel; the base is provided with a guiding trough, the arc-shaped trough and a spring base; a rectangular guiding hole is matched with the square shaft end in a sliding way; the guide rail is matched with the guiding trough; one end of the spring is matched with the spring base; the other end of the spring is matched with the square shaft end; and the auxiliary wheel is hinged to the shaft end of the shoe brake. When the shopping cart walks on a plane, the auxiliary wheel bears the pressure of the cart body and the plane and compresses the spring, the brake block moves upwards along the square shaft end of the fixed shaft, the braking block of the brake block leaves a braking trough of the main wheel and the main wheel and the auxiliary wheel rotate together; and after the shopping cart enters the escalator, the auxiliary wheel is embedded in the ditch of the escalator, the spring recovers, the braking block is inserted into the braking trough, and the main wheel and the auxiliary wheel are locked and can not rotate any more.

Description

A kind of wheel of the shopping cart of on escalator, braking

Technical field

The utility model relates to a kind of wheel of shopping cart, especially the wheel that can brake on escalator.

Background technology

Present prior art, a kind of wheel that is applicable to shopping comprises main wheel, anchor shaft, main wheel and anchor shaft normal-running fit.Existing problems are: when walking on escalator uses, main wheel is still rotatable, must the people holds, and just can prevent wheel, uses inconvenience.

Summary of the invention

The purpose of this utility model is: a kind of wheel of the shopping cart of braking on escalator is provided, and it not only can travel on the level land, and autobrake brake on escalator.

The utility model be achieved in that a kind of shopping cart of on escalator, braking wheel, comprise main wheel, anchor shaft, its special character is: described anchor shaft comprises circular spindle nose, square spindle nose and the middle part shaft shoulder, guided way is arranged on the shaft shoulder, on the guided way of the first side of square shaft deep-slotted chip breaker is arranged; Described main wheel and circular spindle nose articulate, and have on the spoke of main wheel along circular well-distributed brake groove;

Also comprise an accessory whorl, spring and brake shoes,

Described brake shoes is made of spindle nose, pedestal and the brake block that is positioned at the below, and an oblong pilot hole connects spindle nose and pedestal, and guide groove is arranged on the pedestal, and guide groove has the arc groove, and a spring perch and the setting of brake block mirror image are arranged in the arc groove; Oblong pilot hole and square spindle nose bearing fit, guided way cooperates with guide groove; Spring one end cooperates with spring perch, and the other end cooperates with square spindle nose, and the arc groove in deep-slotted chip breaker on the guided way and the guide groove constitutes the spring pilot hole;

The spindle nose of accessory whorl and brake shoes articulates.

The wheel of a kind of shopping cart of on escalator, braking of the utility model, owing to adopt such structure, when travelling in the plane, accessory whorl is subjected to the pressure on car body, plane, compression spring, brake shoes moves up along the square spindle nose of anchor shaft, and the brake block on the brake shoes leaves brake groove on the main wheel, and major and minor the wheel together rotated; After entering escalator, accessory whorl embeds in the groove of staircase, and spring is replied, and brake block inserts in the brake groove, major and minorly takes turns sealedly, and main wheel and accessory whorl can not rotate.

Description of drawings

Fig. 1 is the cutaway view of the utility model motoring condition.

Fig. 2 is the cutaway view of the utility model locked state on escalator.

Fig. 3 is one of three-dimensional exploded view of cooperating with brake shoes of the utility model anchor shaft.

Fig. 4 is two of the three-dimensional exploded view that cooperates with brake shoes of the utility model anchor shaft.

Fig. 5 is the block diagram of the utility model main wheel.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As shown in Figure 1 and Figure 2, a kind of shopping cart of on escalator, braking wheel, comprise main wheel 1, anchor shaft 2, as shown in Figure 3, Figure 4, described anchor shaft 2 comprises the shaft shoulder 23 at circular spindle nose 21, square spindle nose 22 and middle part, guided way 231 is arranged on the shaft shoulder 23, on the guided way 231 of square spindle nose 22 1 sides deep-slotted chip breaker 232 is arranged; Described main wheel 1 articulates with circular spindle nose 21, as shown in Figure 5, has on the spoke of main wheel 1 along circular well-distributed brake groove 11;

Also comprise an accessory whorl 3, spring 5 and brake shoes 4,

Main wheel 1 is made of main wheel spoke, main wheel rim, and accessory whorl is made of accessory whorl spoke, accessory whorl rim,

As shown in Figure 3, Figure 4, described brake shoes 4 is made of spindle nose 41, pedestal 42 and the brake block 43 that is positioned at pedestal below, one oblong pilot hole 44 connects spindle nose 41 and pedestal 22, guide groove 421 is arranged on the pedestal 42, interior guide groove 421 runs through oblong pilot hole 44, guide groove 421 has arc groove 422, and a spring perch 423 and brake block 43 mirror image settings arranged in the arc groove 422; Oblong pilot hole 44 and square spindle nose 22 bearing fits, guided way 231 cooperates with guide groove 421; Spring 5 one ends cooperate with spring perch 423, and the other end cooperates with square spindle nose 22, and the arc groove 422 in deep-slotted chip breaker on the guided way 231 and the guide groove 421 constitutes the spring pilot hole;

Accessory whorl 3 articulates with the spindle nose 41 of brake shoes 4.

The utility model in use, anchor shaft 2 is captiveed joint with the wheel stand of shopping cart, when purchasing car and travel in the plane, accessory whorl 3 is subjected to the pressure influence of shopping cart, and the brake shoes of accessory whorl 3 moves up along anchor shaft 2, and the guide groove 421 of brake shoes moves up along guided way 231, brake block 43 on the brake shoes leaves the brake groove 11 on the main wheel, compression spring 5, main wheel 1 rotates around anchor shaft 2, and accessory whorl rotates around the spindle nose 41 of brake shoes; In the time of on entering escalator, accessory whorl enters in the groove, and compression spring 5 is replied, and brake block 43 embeds in the brake groove 11, and main wheel can not rotate.

Claims

A shopping cart of on escalator, braking wheel, comprise main wheel, anchor shaft, it is characterized in that: described anchor shaft comprises the shaft shoulder at circular spindle nose, square spindle nose and middle part, and guided way is arranged on the shaft shoulder, on the guided way of the first side of square shaft deep-slotted chip breaker is arranged; Described main wheel and circular spindle nose articulate, and have on the spoke of main wheel along circular well-distributed brake groove;

Also comprise an accessory whorl, spring and brake shoes,

Described brake shoes is made of spindle nose, pedestal and the brake block that is positioned at the below, and an oblong pilot hole connects spindle nose and pedestal, and guide groove is arranged on the pedestal, and guide groove has the arc groove, and a spring perch and the setting of brake block mirror image are arranged in the arc groove; Oblong pilot hole and square spindle nose bearing fit, guided way cooperates with guide groove; Spring one end cooperates with spring perch, and the other end cooperates with square spindle nose, and the arc groove in deep-slotted chip breaker on the guided way and the guide groove constitutes the spring pilot hole;

The spindle nose of accessory whorl and brake shoes articulates.