CN203897567U - Luggage pull rod - Google Patents

Abstract

The utility model discloses a luggage pull rod and aims at providing a luggage pull rod which is easy to assemble and can reduce assembling accuracy. According to the key points of the technical scheme, a plugging pipe and a socketed pipe are respectively arranged in a cylindrical structure, a limiting block comprises a ring body part arranged in an integrated way and a claw tooth part composed of a plurality of claw teeth, the ring body part is arranged in a cylindrical structure, a locating block is arranged outside the ring body in a protruding way, a fixed hole used for containing an embedded locating block is formed in the side wall of the socketed pipe, the claw teeth are respectively arranged toward the axis direction of the ring body part, and a claw tooth part gap is formed between adjacent claw teeth. The limiting block is slipped into the socketed pipe, and the locating block is embedded into the fixed hole, so that the limiting block can be fixedly mounted without adopting auxiliary equipment, the assembling way is simple and rapid, and assembly cost can be reduced; meanwhile, the claw tooth part has elasticity, and the claw tooth part can be conveniently abutted against the outer side wall of the plugging pipe, so that production accuracy of the limiting block, assembling accuracy between the limiting block and the plugging pipe and assembling accuracy between the limiting block and the socketed pipe can be effectively reduced.

Description

Case drawbar

Technical field

The utility model relates to case and bag technical field, and more particularly, it relates to a kind of case drawbar.

Background technology

Suitcase is the class in case and bag.It includes body bag, telescopic lever and case and bag return pulley, because it is easy to use, is widely used.

Conventionally telescopic lever include the socket pipe being connected with case and bag return pulley and be plugged in socket pipe can in the insertion pipe of slippage connection.In prior art, for preventing that insertion pipe is pulled out out during slippage in socket pipe, therefore socket pipe is provided with limited block at the other end with respect to case and bag return pulley, avoid insertion pipe to be pulled out out in slipping and impact use, and limited block can also increase the axiality of insertion pipe in socket pipe, avoid insertion pipe to produce in socket pipe and rock and affect use.

On market, the limited block of most case and bag need to coordinate trip bolt to assemble conventionally, on socket pipe sidewall, is provided with screwed hole, fix limited block, and this kind of installation step is loaded down with trivial details, has increased assembly cost by using the instruments such as screwdriver to screw trip bolt; And because limited block also has the effect that increases insertion pipe axiality in socket pipe, so the production precision of limited block and also relatively high with the assembly precision of insertion pipe and socket pipe.

Utility model content

The deficiency existing for prior art, it is a kind of easy to assembly and can reduce the case drawbar of assembly precision that the purpose of this utility model is to provide.

For achieving the above object, the utility model provides following technical scheme: a kind of case drawbar, comprise insertion pipe and socket pipe and limited block, described insertion pipe and socket pipe be cylindrical structure setting all, described limited block comprises the ring body portion being wholely set and the blade tooth portion consisting of some blade tooths, the cylindrical structure setting of described ring body portion, described ring body portion outside convexes with locating piece, described socket pipe sidewall is provided with for being embedded the fixing hole of locating piece, described blade tooth all arranges towards ring body portion axis direction, is provided with blade tooth portion breach between adjacent blade tooth.

Described ring body portion consists of some solid sheet, between adjacent solid sheet, be provided with ring body portion breach, described ring body portion breach quantity is identical with blade tooth quantity, described blade tooth portion breach quantity is identical with solid sheet quantity, described ring body portion breach extends to blade tooth portion, and described blade tooth portion breach extends to ring body portion.

Described ring body portion two ends are equipped with blade tooth portion.

Described limited block consists of good springiness, on-deformable metal material.

A kind of case drawbar, comprise insertion pipe and socket pipe and limited block, described insertion pipe and socket pipe be cylindrical structure setting all, described limited block comprises the ring body portion being wholely set and the blade tooth portion consisting of some blade tooths, the cylindrical structure setting of described ring body portion, described ring body portion outside convexes with locating piece, and described socket pipe sidewall is provided with for being embedded the fixing hole of locating piece, described blade tooth all arranges towards ring body portion axis direction, is provided with blade tooth portion breach between adjacent blade tooth.By adopting technique scheme, limited block is slipped in socket pipe, make locating piece embed in fixing hole, without using auxiliary equipment can realize the fixed installation of limited block, this kind of assembling mode simple and fast, is conducive to reduce assembly cost; And the blade tooth portion breach on limited block facilitates blade tooth to arrange towards the axle center of ring body portion, make blade tooth portion there is elasticity, be convenient to make blade tooth portion to contact at all the time the lateral wall of insertion pipe, therefore can effectively reduce limited block production precision and with the assembly precision of insertion pipe and socket pipe.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model case drawbar;

Fig. 2 is the perspective view of limited block.

Reference numeral: 1, insertion pipe; 2, socket pipe; 21, fixing hole; 3, limited block; 31, ring body portion; 311, locating piece; 312, solid sheet; 313, ring body portion breach; 32, blade tooth portion; 321, blade tooth; 322, blade tooth portion breach.

The specific embodiment

With reference to Fig. 1, Fig. 2, the utility model case drawbar embodiment is described further.

A kind of case drawbar, comprise insertion pipe 1 and socket pipe 2 and limited block 3, described insertion pipe 1 and socket pipe 2 be cylindrical structure setting all, described limited block 3 comprises the ring body portion 31 being wholely set and the blade tooth portion 32 consisting of some blade tooths 321, the 31 cylindrical structure settings of described ring body portion, described ring body portion 31 outsides convex with locating piece 311, described socket pipe 2 sidewalls are provided with for being embedded the fixing hole 21 of locating piece 311, described blade tooth 321 is all towards the 31 axis direction settings of ring body portion, between adjacent blade tooth 321, be provided with the breach 322(of blade tooth portion it should be noted that herein, consider the effect that limited block 3 sizes and breach quantity are brought to limited block 3, the present embodiment preferred version is: be provided with eight blade tooth portion breach 322 and eight blade tooths 321).Limited block 3 is slipped in socket pipe 2, make locating piece 311 embed in fixing hole 21, without using auxiliary equipment can realize the fixed installation of limited block 3, this kind of assembling mode simple and fast, is conducive to reduce assembly cost, and the blade tooth portion breach 322 on limited block 3 facilitates blade tooth 321 to arrange towards the axle center of ring body portion 31, make blade tooth portion 32 there is elasticity, can be strutted by insertion pipe 1, and several blade tooths 321 are all conflicted and are connected with the lateral wall of insertion pipe 1, can not only realize the slippage of insertion pipe 1 in socket pipe 2, make limited block 3 there is larger coupling mechanism force simultaneously, strengthened insertion pipe 1 coaxial steadiness when the socket pipe 2 interior slippage, avoid insertion pipe 1 rock and affect use in the interior generation of socket pipe 2, and because blade tooth portion 32 has elasticity, be convenient to make blade tooth portion 32 to contact at all the time the lateral wall of insertion pipe 1, therefore can effectively reduce the production precision of limited block 3, and with the assembly precision of insertion pipe 1 and socket pipe 2, be conducive to reduce production costs.Ring body portion 31 is made as to cylindrical shape, can guarantees that ring body portion 31 is firmly arranged in socket pipe 2, fit in socket pipe 2 madial walls.

Described ring body portion 31 consists of some solid sheet 312, between adjacent solid sheet 312, be provided with ring body portion breach 313, described ring body portion breach 313 quantity are identical with blade tooth 321 quantity, described blade tooth portion breach 322 quantity are identical with solid sheet 312 quantity, described ring body portion breach 313 extends to blade tooth portion 32, and described blade tooth portion breach 322 extends to ring body portion 31.In ring body portion 31, be provided with ring body portion breach 313, using ring body portion 31 also as locking the application of force a part, blade tooth portion breach 322 in blade tooth portion 32 extends to ring body portion 31 simultaneously, ring body portion breach 313 in ring body portion 31 extends to blade tooth portion 32, not only make limited block 3 there is the elastic force towards axle center, be conducive to strengthen the scope of application of limited block 3, reduce the production precision of limited block 3, and with the assembly precision of insertion pipe 1 and socket pipe 2, more be conducive to strengthen 32 conflicts of blade tooth portion and be connected in the chucking power on insertion pipe 1 lateral wall, make limited block 3 be connected more firm with insertion pipe 1, facilitate insertion pipe 1 in the interior steady slippage of socket pipe 2.

Described ring body portion 31 two ends are equipped with blade tooth portion 32.The blade tooth portion 32 at ring body portion 31 two ends all conflicts and is connected on the lateral wall of insertion pipe 1, be conducive to increase insertion pipe 1 under the effect of limited block 3 with the stable connection of socket pipe 2, therefore avoided insertion pipe 1 to rock and affect use in the interior easy generation of socket pipe 2.

Described limited block 3 forms (it should be noted that, described metal material can be copper product) herein by good springiness, on-deformable metal material.Utilize metal material good springiness, on-deformable feature, can conflict after blade tooth portion 32 is strutted by insertion pipe 1 is connected in the lateral wall of insertion pipe 1, and has higher coupling mechanism force, and is difficult for rupturing, damaging, and the mission life-span such as grows at the feature.

Claims (4)

1. a case drawbar, comprise insertion pipe and socket pipe and limited block, it is characterized in that: described insertion pipe and socket pipe be cylindrical structure setting all, described limited block comprises the ring body portion being wholely set and the blade tooth portion consisting of some blade tooths, the cylindrical structure setting of described ring body portion, described ring body portion outside convexes with locating piece, described socket pipe sidewall is provided with for being embedded the fixing hole of locating piece, described blade tooth all arranges towards ring body portion axis direction, is provided with blade tooth portion breach between adjacent blade tooth.

2. case drawbar according to claim 1, it is characterized in that: described ring body portion consists of some solid sheet, between adjacent solid sheet, be provided with ring body portion breach, described ring body portion breach quantity is identical with blade tooth quantity, described blade tooth portion breach quantity is identical with solid sheet quantity, described ring body portion breach extends to blade tooth portion, and described blade tooth portion breach extends to ring body portion.

3. case drawbar according to claim 1 and 2, is characterized in that: described ring body portion two ends are equipped with blade tooth portion.

4. case drawbar according to claim 3, is characterized in that: described limited block consists of good springiness, on-deformable metal material.