CN203969519U - Suitcase - Google Patents

Abstract

The utility model discloses a kind of suitcase, comprise casing, bottom half is provided with two rollers, casing one side is provided with the first accommodating cavity, in accommodating cavity, be provided with pull bar, the first accommodating cavity below is provided with the first accommodating cavity, and the first accommodating cavity is communicated with by tracheae with the second accommodating cavity; Tracheae one end is directly communicated with the second accommodating cavity, and the other end is communicated with the first accommodating cavity by a check valve; In the second accommodating cavity, be provided with a portable plate; Portable plate is provided with a connecting rod, and connecting rod one end is fixedly connected with portable plate, and the other end extends the second accommodating cavity and is fixedly connected with roller; Between the first accommodating cavity and casing outside, be provided with an air admission hole, between tracheae and casing outside, be provided with a venthole, venthole is by a sealing-plug sealing.By adopting technique scheme, a kind of suitcase is provided, the roller of its bottom can change by lifting the distance on suitcase bottom and ground, to facilitate suitcase by the darker road surface of ponding.

Description

Suitcase

Technical field

The utility model belongs to case and bag field, relates to a kind of suitcase.

Background technology

Suitcase is a kind of travelling article in people's daily life, its bottom is generally all provided with roller, and be provided with pull bar, pull bar generally all can stretch, so just can people walk by pulling pull bar just can haul suitcase, in addition, be also provided with carrying handle, suitcase mentioned crossing when step being convenient for people to.In the time pulling suitcase through ponding road surface, if ponding is deep, suitcase bottom just likely can intake so, generally run into the situation of surface gathered water, people generally can select suitcase carrying, if ponding road surface is long so, and the heavier words of suitcase, carry heavy suitcase and walking so long stretch and can tire out very much, bringing inconvenience.Therefore,, for this problem, some improvement need to be proposed.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of suitcase, and the roller of its bottom can change by lifting the distance on suitcase bottom and ground, to facilitate suitcase by the darker road surface of ponding.

For achieving the above object, the utility model provides following technical scheme:

A kind of suitcase, comprises casing, and described bottom half is provided with two rollers, described casing one side is provided with the first accommodating cavity, in described accommodating cavity, be provided with pull bar, described the first accommodating cavity below is provided with the second accommodating cavity, and described the first accommodating cavity is communicated with by tracheae with described the second accommodating cavity; Described tracheae one end is directly communicated with described the second accommodating cavity, and the other end is communicated with described the first accommodating cavity by a check valve; In described the second accommodating cavity, be provided with a portable plate; Described portable plate is provided with a connecting rod, and described connecting rod one end is fixedly connected with portable plate, and the other end extends described the second accommodating cavity and is fixedly connected with described roller; Between described the first accommodating cavity and described casing outside, be provided with an air admission hole, between described tracheae and described casing outside, be provided with a venthole, described venthole is by a sealing-plug sealing.

By adopting technique scheme, above-mentioned pull bar can slide up and down in the first accommodating cavity, in the time that pull bar one end in the first accommodating cavity drops between air admission hole and the bottom of the first accommodating cavity, will compress the air in the first accommodating cavity, to be communicated with the bottom of the first accommodating cavity by a check valve owing to separately there being a tracheae one end, the other end is directly directly communicated with the second storage tank, so, air in the first accommodating cavity will pass through unmarried valve, enter into the second accommodating cavity through tracheae again, then, air pressure in the second accommodating cavity will raise, and then force the portable plate being arranged in the second accommodating cavity to move to bottom half, due to the existence of check valve, air in the second accommodating cavity is can not enter in the first accommodating cavity so, so only need again upwards to pull out this pull bar (while arriving air admission hole top), so, the air of outside will enter in the first accommodating cavity due to draught head, like this, repeat above-mentioned step, pull bar pushes away to the first accommodating cavity bottom again, just can be more just air send into the second accommodating cavity.Simultaneously, because roller is fixedly connected with this portable plate by a connecting rod, roller will follow above-mentioned portable plate to move so, like this, just can realize the object of raising casing, increase the distance on bottom half and ground, so, in the time pulling suitcase through ponding road surface, just needn't worry that water can be encountered in the bottom of casing, thereby prevent the situation of bottom half water inlet.In addition, when through behind ponding road surface, just need to allow roller return to original position, known from such scheme, between tracheae and casing outside, establish a venthole, and this venthole is sealed by a sealing-plug, like this, as long as sealing-plug is taken out, just the air in the second accommodating cavity can be emitted, so, will decline because of the weight of self at casing, realize like this recovery of box height.Therefore, from the foregoing, in the time running into the darker road surface of ponding, only need to be by above-mentioned method, just can pull safely suitcase to pass ponding road surface.

Preferably, in described the first accommodating cavity, be provided with the first limiting section, described pull bar is provided with the second limiting section coordinating with described the first limiting section.

Preferably, described sealing-plug is threaded with casing.

Brief description of the drawings

Fig. 1 is side-looking and the partial sectional view of the utility model embodiment;

Fig. 2 is the partial enlarged drawing in Fig. 1;

Fig. 3 is the partial enlarged drawing in Fig. 1;

Fig. 4 is the schematic diagram of this utility model embodiment while using back-up block;

Fig. 5 is facing of the utility model embodiment and partial sectional view;

Fig. 6 is the utility model embodiment overall appearance figure.

Accompanying drawing mark: 1, casing, 11, the first accommodating cavity, 111, the first limiting section, 12, air admission hole, 12, the second accommodating cavity, 121, portable plate, 1211, connecting rod, 2, roller, 3, pull bar, 31, the second limiting section, 4, check valve, 5, tracheae, 51, venthole, 511, sealing-plug, 6, back-up block.

Detailed description of the invention

Referring to figs. 1 through Fig. 6, the utility model embodiment is described further.

As scheme a kind of suitcase, and comprising casing 1, casing 1 bottom is provided with two rollers 2, casing 1 one sides are provided with the first accommodating cavity 11, in accommodating cavity, being provided with pull bar 3, the first accommodating cavity 11 belows is provided with the second accommodating cavity 11, the first accommodating cavities 11 and is communicated with by tracheae 5 with the second accommodating cavity 12; Tracheae 5 one end are directly communicated with the second accommodating cavity 12, and the other end is communicated with the first accommodating cavity 11 by a check valve 4; In the second accommodating cavity 12, be provided with a portable plate 121; Portable plate 121 is provided with a connecting rod 1211, and connecting rod 1211 one end are fixedly connected with portable plate 121, and the other end extends the second accommodating cavity 12 and is fixedly connected with roller 2; Between the first accommodating cavity 11 and casing 1 outside, be provided with an air admission hole 12, between tracheae 5 and casing 1 outside, be provided with a venthole 51, venthole 51 seals by a sealing-plug 511.

The operation principle of the present embodiment is:

Above-mentioned pull bar 3 can slide up and down in the first accommodating cavity 11, in the time that pull bar 3 one end in the first accommodating cavity 11 drops between air admission hole 12 and the bottom of the first accommodating cavity 11, will compress the air in the first accommodating cavity 11, to be communicated with the bottom of the first accommodating cavity 11 by a check valve 4 owing to separately there being tracheae 5 one end, the other end is directly directly communicated with the second storage tank, so, air in the first accommodating cavity 11 will pass through unmarried valve, enter into the second accommodating cavity 12 through tracheae 5 again, then, air pressure in the second accommodating cavity 12 will raise, and then force the portable plate 121 being arranged in the second accommodating cavity 12 to move to casing 1 bottom, due to the existence of check valve 4, air in the second accommodating cavity 12 is can not enter in the first accommodating cavity 11 so, while so only needing again upwards to pull out this pull bar 3(arrival air admission hole 12 top), so, the air of outside will enter in the first accommodating cavity 11 due to draught head, like this, repeat above-mentioned step, pull bar 3 pushes away to the first accommodating cavity 11 bottoms again, just can be more just air send into the second accommodating cavity 12.Simultaneously, because roller 2 is fixedly connected with this portable plate 121 by a connecting rod 1211, roller 2 will follow above-mentioned portable plate 121 to move so, like this, just can realize the object of raising casing 1, increase the distance on casing 1 bottom and ground, so, in the time pulling suitcase through ponding road surface, just needn't worry that water can be encountered in the bottom of casing 1, thereby prevent the situation of casing 1 bottom water inlet.In addition, when through behind ponding road surface, just need to allow roller 2 return to original position, known from such scheme, between tracheae 5 and casing 1 outside, establish a venthole 51, and this venthole 51 is sealed by a sealing-plug 511, like this, as long as sealing-plug 511 is taken out, just the air in the second accommodating cavity 12 can be emitted, so, will decline because of the weight of self at casing 1, realize like this recovery of casing 1 height.Therefore, from the foregoing, in the time running into the darker road surface of ponding, only need to be by above-mentioned method, just can pull safely suitcase to pass ponding road surface.

In the present embodiment, from Fig. 5, can be clearly seen that, above-mentioned entire infrastructure is provided with two covers, like this, can reach fast result of use.

Here be noted that, as can be seen from the figure, portable plate 121 is that the second accommodating cavity 12 is separated into two-part up and down in fact, the lower part of the second storage tank is packing less (specifically connecting rod 1211 being arranged to and not exclusively laminating of casing 1) with casing 1 outside so in fact, otherwise under atmospheric pressure, be cannot be by the air compressing in the first storage tank in the upper part of the second storage tank.In addition, when casing 1 drops to after original height, sealing-plug 511 is reinstalled, so now, upper part has not had space, that is to say and there is no air in the tracheae that is just communicated with it 5, to also have air, and now the air pressure in tracheae 5 is identical with the air pressure in the lower component of the second accommodating cavity 12, this has just formed a balance so, like this, portable plate 121 just can not move down again, has not also just worried roller 2 meeting free-extensions.

In addition, in the present embodiment, the inwall of pull bar 3 and the first accommodating cavity 11 is fitted completely, could realize like this sealing and compression to air.

In the present embodiment, as shown in Figure 2, sealing-plug 511 is threaded connection with casing 1, simultaneously in order to reach good sealing effectiveness, can also be on sealing-plug 511 sheathed sealing ring (not shown).

Preferably, as shown in Figure 3, be provided with the first limiting section 111 in the first accommodating cavity 11, pull bar 3 is provided with the second limiting section 31 coordinating with the first limiting section 111.Like this, in the time drawing suitcase, in order to prevent that pull bar 3 is pulled out to the first accommodating cavity 11, in the first accommodating cavity 11, be provided with especially the first limiting section 111, on pull bar 3, be provided with accordingly the second limiting section 31 simultaneously, so,, by coordinating of above-mentioned the first limiting section 111 and the second limiting section 31, just define the maximum length that pull bar 3 can be drawn out.In addition, adopt after this preferred version, only this second limiting section 31 need to be arranged to fit completely with the inwall of the first storage tank, can also reduce like this production technology.

In addition, in the present embodiment, while raising in order to reduce casing 1, owing to only having roller 2 one sides to extend casing 1 imbalance causing, can one back-up block 6 be set at casing 1 bottom opposite side, can reduce to a certain extent like this gradient of casing 1, to facilitate to pressing down pull bar 3.

In addition, the structure of check valve 4 is known technology, and the present embodiment is simple its illustrated position that represents only, and its concrete structure just repeats no more at this so.

Claims (3)

1. a suitcase, comprise casing, described bottom half is provided with two rollers, it is characterized in that: described casing one side is provided with the first accommodating cavity, in described accommodating cavity, be provided with pull bar, described the first accommodating cavity below is provided with the second accommodating cavity, and described the first accommodating cavity is communicated with by tracheae with described the second accommodating cavity; Described tracheae one end is directly communicated with described the second accommodating cavity, and the other end is communicated with described the first accommodating cavity by a check valve; In described the second accommodating cavity, be provided with a portable plate; Described portable plate is provided with a connecting rod, and described connecting rod one end is fixedly connected with portable plate, and the other end extends described the second accommodating cavity and is fixedly connected with described roller; Between described the first accommodating cavity and described casing outside, be provided with an air admission hole, between described tracheae and described casing outside, be provided with a venthole, described venthole is by a sealing-plug sealing.

2. suitcase according to claim 1, is characterized in that: in described the first accommodating cavity, be provided with the first limiting section, described pull bar is provided with the second limiting section coordinating with described the first limiting section.

3. suitcase according to claim 2, is characterized in that: described sealing-plug is threaded with casing.