CN2495180Y

CN2495180Y - Luggage carrier rod

Info

Publication number: CN2495180Y
Application number: CN 01258804
Authority: CN
Inventors: 韩蕙燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-28
Filing date: 2001-08-28
Publication date: 2002-06-19
Anticipated expiration: 2011-08-28

Abstract

The utility model relates to a pulling bar for luggage carts, in particular to a pulling bar with an improved telescopic structure. The telescopic structure has an overlapping and connecting tube body which is overlapped and connected between a bottom frame and a handle frame; the upper end of the overlapping and connecting tube body is provided with a stopper seat, while the lower end is provided with a positioning seat which is provided with a flexible steel ball; the tube body of the bottom seat is provided with a small hole for the steel ball raising and positioning; the overlapping and connecting tube body can be elongated to perform the function of automatic positioning; without arranging a button structure, the elongating and retracting operation of the pulling bar can be carried out. The positioning device of the puling bar which has a more simplified structure is operated more conveniently.

Description

Luggage case go-cart pull bar

Technical field

The utility model belongs to the hand-propelled vehicle field.Relate to a kind of luggage case go-cart pull bar, particularly relevant for a kind of pull bar with stretching structure.

Background technology

People often use portable type bag or casing to come ccontaining article.Especially because of factors such as travelling, work, be on home leave, go to school afield the time, then with luggage case splendid attire daily necessities and other article.Present luggage case all has castor and the telescopic bar of holding up, and people can be when pull bar extends, and in dilatory mode, and the nationality wheel is in the rolling on ground, and can tow luggage case easily.Thus, need not bear the weight of luggage, comparatively laborsaving during the journey.

The above-mentioned pull bar system of commonly using is by inside and outside being socketed to form of the different body of bore, in making pipe relatively outer tube do to extend or in the operation of contracting.This kind socket body is left and right setting, and affixed at the upper end and a Level handle of penetralia body.The user can hold this handle and tow luggage case.And the protruding button of elasticity in handle is provided with a button control body, with the elongation of decision pull bar.Therefore, when the user will operate the elongation of pull bar, must push button earlier, increase operating performance.And after button damages, the elongation of this pull bar, in the just very inconvenience of operation of contracting, even can't implement.

Summary of the invention

The purpose of this utility model is that a kind of luggage case go-cart pull bar will be provided, the stretching structure of this pull bar can make its need not to use button can make pull bar do elongation and in the operation of contracting, structure is more simplified, operate more convenient.

The purpose of this utility model is achieved in that

A kind of luggage case go-cart pull bar, be by one and Luggage trunk body or go-cart the car body underframe, the leader's frame that are fixedly connected and be socketed in underframe and handle rack between and the socket that is symmetrical set constitute three-section type with body and hold up bar; This underframe comprises left and right two square bodys, and this handle rack system connects left and right two square bodys by the leader: it is characterized in that the upper end of these underframe two bodys respectively is provided with the stopping seat of central authorities for the perforation shape, runs through with body for socket; The lower end of two bodys of this handle rack respectively sets firmly a positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining resistance to compression bullet basket for holding earth and a steel ball; This socket is provided with the stopping seat that central authorities are the perforation shape with the upper end of body, runs through for the body of this handle rack, and its lower end is provided with positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining pressure-proof spring and a steel ball; The body place near to the upper end of this underframe is provided with and can makes socket produce automatic positioning action with body elongation back for the aperture of this socket with the steel ball protrusion location of body lower end positioning seat; This socket is provided with the aperture that the steel ball protrusion of handle rack body lower end holder can be located with the place near to the upper end of body, makes handle rack produce automatic positioning action after elongation.And

The internal diameter system of each stopping seat is less than the external diameter of its corresponding holder;

The external diameter of each positioning seat with its internal diameter of ccontaining body match.Or

A kind of luggage case go-cart pull bar is to be configured to the two-section type pull bar by one with affixed underframe and the leader of Luggage trunk body or cart body, and this underframe comprises left and right two square bodys, and this handle rack system connects left and right two square bodys by the leader; It is characterized in that, the upper end of these underframe two bodys respectively is provided with the stopping seat of central authorities for the perforation shape, body for handle rack runs through, and the lower end of two bodys of this handle rack respectively sets firmly a positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining pressure-proof spring and a steel ball; The body place near to the upper end of this underframe is provided with and can protrudes the aperture of location for the steel ball of this handle rack body lower end positioning seat, makes the body of this handle rack produce automatic positioning action after elongation.And

The stopping seat of the two square body upper ends that adopt at this end, its internal diameter system is less than the external diameter of the body lower end holder of this handle rack;

The external diameter of the body lower end positioning seat of this handle rack matches with the internal diameter of the square body of this base.

Because luggage case go-cart pull bar provided by the utility model, its stretching structure has the socket body that is socketed between underframe and the handle rack.This socket is provided with stopping seat with the upper end of body, and the lower end is provided with positioning seat, and this positioning seat is provided with elastic steel ball, and the body of this underframe is provided with and can protrudes the aperture of location for steel ball, makes socket produce automatic positioning action with body after elongation.This socket is provided with body can protrude the aperture of location for steel ball, makes handle rack produce automatic positioning action after elongation.And the internal diameter of each stopping seat system deviates to avoid positioning seat less than the external diameter of its pairing fixed bit seat.In sum, luggage case go-cart pull bar provided by the utility model utilizes the elastic steel ball principle of simplifying, make pull bar have the effect of automatic location, need not to use button can make pull bar do elongation and in the operation of contracting, it is more convenient to operate, cost is more cheap, is a kind of more practical design.

Description of drawings

Fig. 1 is an outside drawing of the present utility model;

Fig. 2 is an exploded view of the present utility model;

Fig. 3 is the view of elongation state for the utility model;

Fig. 4 makees the view of condensation operation for the utility model;

Fig. 5 is the outside drawing of complete condensation of the present utility model;

Fig. 6 is the outside drawing of two-section type pull bar.The piece number explanation:

10 cart bodies, 20 pull bars

21 underframe

212 perforation of 211 stopping seats

22 handle racks

221 holders

222 shrinkage pools, 223 pressure-proof springs

224 steel balls, 23 socket bodys

231 stopping seats

232 perforation

233 positioning seats, 234 shrinkage pools

235 pressure-proof springs

236 steel, 237 apertures

24 bodys

241 apertures

25 handles

26 bodys

The specific embodiment

As shown in Figure 1, 2, its be by one and affixed underframe 21, the leader's frame 22 of Luggage trunk body or cart body 10, be socketed between underframe 21 and the handle rack 22 and for the socket that is symmetrical set with body 23, and constitute three-section type pull bar 20.This underframe 21 comprises left and right two

square bodys

24,24, and the upper end system of this body 24 sets firmly the stopping seat 211 of central authorities for perforation 212, runs through with body 23 for this socket.This handle rack 22 is to connect left and right two 26,26 of square bodys by leader 25 to constitute, and the lower end of this body 26 respectively sets firmly a positioning seat 221, this positioning seat 221 be provided with one radially shrinkage pool 222 with ccontaining resistance to compression bullet match 223 and one steel ball 224.This socket is provided with the stopping seat 231 that central authorities are perforation 232 with the upper end of body 23, runs through for the body 26 of this handle rack 22, and its lower end is provided with positioning seat 233, this positioning seat 233 be provided with one radially shrinkage pool 234 with a ccontaining pressure-proof spring 235 and a steel ball 236.Body 24 place near to the upper end of this underframe 21 are provided with and can make socket produce automatic positioning action with body 23 after elongation for the aperture 241 of this socket with the steel ball 236 protrusion location of body 23 lower end positioning seats 233.But this socket is protruded the aperture 237 of location with the steel ball 224 that the place near to the upper end of body 23 is provided with a handle rack 22 bodys 26 lower end holders 221, makes handle rack 22 produce automatic positioning action after elongation.

The stopping seat 211 of two square bodys, 24 upper ends of above-mentioned this underframe 21, its internal diameter system deviates to avoid positioning seat 233 less than the external diameter of this socket with body 23 lower end holders 233.When this socket reached long status with body 23, the steel ball 236 of its lower end positioning seat 233 promptly snapped in the aperture 241 of these underframe 21 square bodys 24 upper ends and produces positioning action, as shown in Figure 3.Therebetween, this socket matches with the internal diameter of the square body 24 of the external diameter of body 23 lower end positioning seats 233 and this base 21; This socket matches with the internal diameter of stopping seat 211 central perforations 212 of the external diameter of body 23 and this base 21 square bodys 24 upper ends, makes this socket smooth and easy with body 23 pull in the square body 24 of underframe 21, and is difficult for shaking.

Above-mentioned this socket is deviate to avoid positioning seat 221 less than the external diameter of these handle rack 21 bodys 26 lower end holders 221 with the stopping seat 231 of body 23 upper ends, its internal diameter system.When the body 26 of this handle rack 22 reached long status, the steel ball 224 of its lower end positioning seat 221 promptly snapped in this socket with in the aperture 237 of body 23 upper ends and produce positioning action, as shown in Figure 3.Therebetween, the external diameter of the body 26 lower end positioning seats 221 of this handle rack 22 and this socket match with the internal diameter of body 23; The external diameter of the body 26 of this handle rack 22 and this socket match with the internal diameter of stopping seat 231 central perforations 232 of body 23 upper ends, make the body 26 of this handle rack 22 smooth and easy with pull in the body 23 in socket, and are difficult for shaking.

In the time will making this pull bar 20 be elongation state, as long as the direct pull handle, during greater than the compressive resistance of spring 223,235, can make handle rack 22, socket pull out in regular turn and present, as shown in Figure 3 with body 23 at pulling force.Therefore, need not in the operating process by any operating knob, more convenient in the use.Again, the utility model does not use the button mechanism of complex structure, can reduce cost of manufacture.In the time pull bar 20 will being shortened, as long as during, steel ball 224 can be clamp-oned in the shrinkage pool 222 of holder 221 compressive resistance of the pressure big spring 223 of handle rack 22, as shown in Figure 4, and with this socket of these handle rack 22 retractions with in body 23.In like manner, can be with in the square body 24 of this socket with this underframe 21 of body 23 retractions.When this handle rack 22 retraction sockets with body 23, and this socket as shown in Figure 5, is each stop part 231,221 of nationality and the tightness of making 26,23 of the flexible bodys of operating within it during with body 23 these underframe 21 of retraction, makes it can not skid off voluntarily after retraction.

Above-mentioned socket is symmetrical arranged for left and right with body 23.Generally respectively to establish one be principle with left and right, makes this pull bar 20 form the telescopic mechanism of three-section types.In the enforcement, this socket body 23 also can be set, and directly insert in the square body 24 of this underframe 21, and form two-segment type pull bar 20 ' mechanism, as shown in Figure 6 with the body 26 of this handle rack 22.

Claims

1, a kind of luggage case go-cart pull bar, be by one and Luggage trunk body or go-cart the car body underframe, the leader's frame that are fixedly connected and be socketed in underframe and handle rack between and the socket that is symmetrical set constitute three-section type with body and hold up bar; This underframe comprises left and right two square bodys, and this handle rack system connects left and right two square bodys by the leader; It is characterized in that the upper end of these underframe two bodys respectively is provided with the stopping seat of central authorities for the perforation shape, runs through with body for socket; The lower end of two bodys of this handle rack respectively sets firmly a positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining resistance to compression bullet basket for holding earth and a steel ball; This socket is provided with the stopping seat that central authorities are the perforation shape with the upper end of body, runs through for the body of this handle rack, and its lower end is provided with positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining pressure-proof spring and a steel ball; The body place near to the upper end of this underframe is provided with and can makes socket produce automatic positioning action with body elongation back for the aperture of this socket with the steel ball protrusion location of body lower end positioning seat; This socket is provided with the aperture that the steel ball protrusion of handle rack body lower end holder can be located with the place near to the upper end of body, makes handle rack produce automatic positioning action after elongation.

2, luggage case go-cart pull bar according to claim 1 is characterized in that, the internal diameter system of each stopping seat is less than the external diameter of its corresponding holder.

3, luggage case go-cart pull bar according to claim 1 is characterized in that, the external diameter of each positioning seat with its internal diameter of ccontaining body match.

4, a kind of luggage case go-cart pull bar is to be configured to the two-section type pull bar by one with affixed underframe and the leader of Luggage trunk body or go-cart car body, and this underframe comprises left and right two square bodys, and this handle rack system connects left and right two square bodys by the leader; It is characterized in that, the upper end of these underframe two bodys respectively is provided with the stopping seat of central authorities for the perforation shape, body for handle rack runs through, and the lower end of two bodys of this handle rack respectively sets firmly a positioning seat, this positioning seat be provided with one radially shrinkage pool with a ccontaining pressure-proof spring and a steel ball; The body place near to the upper end of this underframe is provided with to protrude for the steel ball of this handle rack body lower end positioning seat locatees the body that makes this handle rack produces automatic positioning action after elongation aperture.

5, as luggage case go-cart pull bar as described in the claim 4, it is characterized in that, the stopping seat of two square bodys upper ends of this underframe, its internal diameter system is less than the external diameter of the body lower end holder of this handle rack.

6, as luggage case go-cart pull bar as described in the claim 4, it is characterized in that the external diameter of the body lower end positioning seat of this handle rack matches with the internal diameter of the square body of this base.