CN112841838A - Luggage case base with telescopic idler wheels - Google Patents
Luggage case base with telescopic idler wheels Download PDFInfo
- Publication number
- CN112841838A CN112841838A CN202110295562.3A CN202110295562A CN112841838A CN 112841838 A CN112841838 A CN 112841838A CN 202110295562 A CN202110295562 A CN 202110295562A CN 112841838 A CN112841838 A CN 112841838A
- Authority
- CN
- China
- Prior art keywords
- roller
- case
- transmission case
- gyro wheel
- gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C5/00—Rigid or semi-rigid luggage
- A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
- A45C5/145—Rigid or semi-rigid luggage with built-in rolling means with immobilising means, e.g. means for blocking the wheels
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C5/00—Rigid or semi-rigid luggage
- A45C5/14—Rigid or semi-rigid luggage with built-in rolling means
- A45C5/146—Rigid or semi-rigid luggage with built-in rolling means retractable
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- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The invention discloses a luggage case base with telescopic rollers, which comprises a transmission case, wherein the left end and the right end of the transmission case are respectively and fixedly provided with a roller case which is bilaterally symmetrical, the front end and the rear end of the roller case on one side are respectively provided with a groove, the upper end of each groove is respectively and fixedly provided with a roller support, a roller slider is slidably arranged on each roller support, the telescopic movement of a universal roller at the bottom of the luggage case can be realized, so that the luggage case is prevented from sliding randomly, a user controls the extension and retraction of the universal roller through a light pedal, the integral gravity center of the luggage case is lowered in a fixed mode, the roller is retracted, the stability is increased, the luggage case is fixed through the expansion of four support plates and an anti-skid pad, when the luggage case is reset, the luggage case only needs to be lifted for a short distance, and.
Description
Technical Field
The invention relates to the field of bags, in particular to a luggage case base with telescopic rollers.
Background
The suitcase is the case that everybody carried when going out and is used for placing object article, the convenient pulling of universal gyro wheel is generally installed to the suitcase bottom, four universal wheels can be installed to common suitcase bottom on the market now, though the push-and-pull of suitcase has been made things convenient for, but also caused the easy gliding problem of suitcase, on carriers such as public transit, subway, the four-wheel suitcase that does not have limit function often can be because the inertia of self takes place to slide when the carrier starts and brakes, cause unnecessary potential safety hazard, consequently, need design a gyro wheel telescopic suitcase base and solve above-mentioned problem.
Disclosure of Invention
The invention aims to provide a luggage case base with telescopic rollers, which can overcome the defects in the prior art, so that the practicability of equipment is improved.
In a preferred embodiment, the device comprises a transmission case, the left end and the right end of the transmission case are respectively and fixedly provided with bilaterally symmetrical roller cases, the front end and the rear end of each roller case are respectively provided with a groove, the upper end of each groove is respectively and fixedly provided with a roller bracket, a roller slider is slidably arranged on each roller bracket, a return spring is connected and arranged between each roller slider and the corresponding roller case, the lower end of each roller slider is rotatably provided with a universal roller, and the end wall of each roller slider, which is close to one side of the transmission case, is provided with two limiting holes which are the same up and down.
In a preferred embodiment, two limiting rods which are symmetrical in the front and back are respectively arranged on the left end wall and the right end wall of the inner cavity of the transmission case in a sliding mode, the limiting rods can penetrate through the transmission case and the roller case and are inserted into limiting holes in the roller sliding block, and springs are connected between the limiting rods and the end walls of the inner cavity of the transmission case on the corresponding side.
In a preferred embodiment, a groove is formed in the lower end of the inner cavity of the transmission case, a pedal is rotatably mounted in the groove, a T-shaped pull rod is rotatably mounted on the pedal, and first connecting rods are respectively hinged between the T-shaped pull rod and the four limiting rods.
In a preferred embodiment, a connecting plate is fixedly installed between the front roller sliding block and the rear roller sliding block, and a rack is fixedly installed on the connecting plate.
In a preferred embodiment, a first gear is rotatably mounted in a reserved groove between the roller box and the transmission box on the transmission box.
In a preferred embodiment, the first gear can be meshed with the rack, a screw rod is rotatably mounted in a reserved groove between the roller box and the transmission box on the transmission box, threads in opposite directions are respectively machined at the front end and the rear end of the screw rod, and a second gear is fixedly mounted on the second gear and can be meshed with the first gear.
In a preferred embodiment, the front end and the rear end of the transmission case are respectively hinged with two support plates which are bilaterally symmetrical, the lower ends of the support plates are fixedly provided with anti-skid pads, and the lower edges of the anti-skid pads are slightly lower than the lower end of the transmission case.
In a preferred embodiment, the four support plates are respectively provided with a nut block in a hinged manner at one side close to the inner cavity of the transmission case, a threaded hole is processed at one end of each nut block far away from the hinged support plate, and the threaded holes in the four support plates can be respectively engaged with threads on the screw rods at the corresponding sides.
In a preferred embodiment, the device is installed at the bottom of a trunk to replace an original base, the universal idler wheel can normally roll when a user pulls the trunk, when the user needs to fix the position of the trunk, the user needs to slightly step on the pedal and then loosen the pedal, the rear end of the pedal moves downwards to pull the T-shaped pull rod to move downwards, the T-shaped pull rod moves downwards to pull the limiting rod to move towards the center side of the inner cavity of the transmission case through the first connecting rod, the limiting rod can be pulled out from the limiting hole at the upper side in the idler wheel slide block in the moving process, the idler wheel slide block loses the limiting effect of the limiting rod, under the gravity action of the trunk body, the transmission case and the idler wheel case move downwards, the transmission case moves downwards to drive the limiting rod to move downwards, and the limiting rod can be inserted into the limiting hole at the lower side of the idler wheel slide block under the action of the spring installed on the transmission case, at the moment, the roller support moves downwards and is inserted into the roller sliding block, the transmission case drives the first gear to move downwards in the downward movement process, the rack can drive the first gear to rotate in the downward movement process of the first gear, the first gear rotates and drives the second gear to rotate, the second gear rotates and drives the lead screw to rotate, the lead screw rotates and drives the nut blocks at two ends to move towards the direction far away from the inner cavity of the transmission case, the nut blocks move and drive the supporting plates to unfold, the four supporting plates unfold, the supporting plates drive the non-slip mat to unfold, and the transmission case descends to enable the non-slip mat to be in contact with the ground, so that the function of assisting in fixing the luggage case is achieved.
In a preferred embodiment, when the user needs to restore the luggage case from the fixed mode to the pull-able mode, the user needs to lift the luggage case a short distance away from the ground, and then release the luggage case after stepping on the pedal again, the pedal is stepped on and then drives the limiting rod to be pulled out from the lower limiting hole according to the transmission process, the roller slider is popped out downwards under the action of the return spring after losing the limiting function of the limiting rod, the limiting rod is inserted into the upper limiting hole of the roller slider in the process of popping the roller slider downwards under the action of the spring, the limiting rod limits and fixes the roller slider again, the roller slider drives the first gear to rotate reversely in the process of popping downwards, the first gear rotates to drive the support plate to retract according to the transmission route, and thus the whole restoring work of the luggage case base is completed, the user may continue to pull on the luggage case.
The invention has the beneficial effects that: the luggage case base with the telescopic idler wheels can realize the telescopic of the universal idler wheels at the bottom of the luggage case, so that the luggage case is prevented from sliding randomly, a user controls the universal idler wheels to extend and retract by lightly stepping on the pedal, the center of gravity of the whole luggage case is lowered in a fixed mode, the idler wheels are retracted, the stability is improved, the luggage case is fixed by unfolding the four supporting plates and the anti-slip pads, and the luggage case base can be conveniently reset only by lifting the luggage case for a short distance and stepping on the pedal again.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a luggage base with retractable rollers of the present invention.
Fig. 2 is an enlarged schematic view of a in fig. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-2, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Combine fig. 1-2 a gyro wheel telescopic suitcase base, including transmission case 10, the end difference fixed mounting has bilateral symmetry's gyro wheel case 15 about transmission case 10, the unilateral front and back end is processed respectively to gyro wheel case 15, and every fluting upper end fixed mounting has gyro wheel support 16 respectively, slidable mounting has gyro wheel slider 18 on gyro wheel support 16, gyro wheel slider 18 with connect between the gyro wheel case 15 and install reset spring 17, gyro wheel slider 18 lower extreme rotates installs universal gyro wheel 19, gyro wheel slider 18 is close to process two spacing holes the same from top to bottom on the end wall of transmission case 10 one side.
Two limiting rods 14 which are symmetrical in the front and back are respectively arranged on the left and right end walls of the inner cavity of the transmission case 10 in a sliding mode, the limiting rods 14 can penetrate through the transmission case 10 and the roller case 15 and are inserted into limiting holes in the roller sliding blocks 18, and springs are connected between the limiting rods 14 and the end walls of the inner cavity of the transmission case 10 on the corresponding side.
A groove is formed in the lower end of the inner cavity of the transmission case 10, a pedal 23 is rotatably mounted in the groove, a T-shaped pull rod 12 is rotatably mounted on the pedal 23, and first connecting rods 13 are respectively hinged between the T-shaped pull rod 12 and the four limiting rods 14.
A connecting plate 24 is fixedly arranged between the front roller sliding block 18 and the rear roller sliding block 18, and a rack 25 is fixedly arranged on the connecting plate 24.
A first gear 26 is rotatably mounted in a pre-groove between the roller box 15 and the transmission box 10 on the transmission box 10.
The first gear 26 can be meshed with the rack 25, a screw rod 21 is rotatably mounted in a reserved groove between the roller box 15 and the transmission box 10 on the transmission box 10, threads in opposite directions are respectively machined at the front end and the rear end of the screw rod 21, a second gear 27 is fixedly mounted on the second gear 27, and the second gear 27 can be meshed with the first gear 26.
The front end and the rear end of the transmission case 10 are respectively hinged with two support plates 11 which are symmetrical left and right, the lower ends of the support plates 11 are fixedly provided with anti-skid pads 22, and the lower edges of the anti-skid pads 22 are slightly lower than the lower end of the transmission case 10.
The four support plates 11 are respectively hinged to one side close to the inner cavity of the transmission case 10 and provided with nut blocks 20, threaded holes are machined in one ends, far away from the ends, hinged to the support plates 11, of the nut blocks 20, and the four threaded holes in the support plates 11 can be respectively meshed with threads on the screw rods 21 on the corresponding sides.
In one embodiment, the device is installed at the bottom of a trunk to replace the original base, the universal roller 19 can normally roll when a user pulls the trunk, when the user needs to fix the trunk at a fixed position, the user needs to slightly step on the pedal 23 with a foot and then release the pedal, the rear end of the pedal 23 moves downwards to pull the T-shaped pull rod 12 to move downwards, the T-shaped pull rod 12 moves downwards to pull the limiting rod 14 to move towards the center side of the inner cavity of the transmission case 10 through the first connecting rod 13, the limiting rod 14 is pulled out from the limiting hole at the upper side in the roller slide block 18 during moving, the roller slide block 18 loses the limiting effect of the limiting rod 14, the transmission case 10 and the roller case 15 move downwards under the gravity of the trunk body, the transmission case 10 moves downwards to drive the limiting rod 14 to move downwards, the limiting rod 14 is inserted into a limiting hole at the lower side of the roller slider 18 under the action of a spring mounted thereon, at this time, the roller bracket 16 moves downward and is inserted into the roller slider 18, the first gear 26 is driven to move downward during the downward movement of the transmission case 10, the rack 25 can drive the first gear 26 to rotate during the downward movement of the first gear 26, the first gear 26 rotates and drives the second gear 27 to rotate, the second gear 27 rotates and drives the lead screw 21 to rotate, the lead screw 21 rotates and drives the nut blocks 20 at two ends to move away from the inner cavity of the transmission case 10, the nut blocks 20 move and drive the support plates 11 to unfold, the four support plates 11 unfold, the support plates 11 drive the anti-skid pads 22 to unfold, the transmission case 10 descends to make the anti-skid pads 22 contact the ground, the function of auxiliary fixing of the luggage case is achieved.
In another embodiment, when the user needs to restore the luggage case from the fixed mode to the pull-able mode, the user needs to lift the luggage case a short distance from the ground, and release the pedal 23 after stepping down again, the pedal 23 is stepped down and then drives the limiting rod 14 to be pulled out from the lower limiting hole according to the aforementioned transmission process, the roller block 18 is popped out downwards under the action of the return spring 17 after losing the limiting function of the limiting rod 14, the limiting rod 14 is inserted into the upper limiting hole of the roller block 18 in the process of popping the roller block 18 downwards under the action of the spring, the limiting rod 14 again limits and fixes the roller block 18, the roller block 18 drives the first gear 26 to rotate reversely in the process of popping downwards, the first gear 26 rotates reversely and drives the supporting plate 11 to retract according to the aforementioned transmission route, so far, the whole reset work of the luggage case base is completed, and the user can continue to pull the luggage case.
The embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a gyro wheel telescopic suitcase base, includes transmission case (10), end difference fixed mounting has bilateral symmetry's gyro wheel case (15), unilateral about transmission case (10) gyro wheel case (15) front and back end is processed respectively and is slotted, and every fluting upper end fixed mounting has gyro wheel support (16) respectively, slidable mounting has gyro wheel slider (18) on gyro wheel support (16), gyro wheel slider (18) with connect between gyro wheel case (15) and install reset spring (17), gyro wheel slider (18) lower extreme rotates and installs universal gyro wheel (19), gyro wheel slider (18) are close to process two spacing holes the same from top to bottom on the end wall of transmission case (10) one side.
2. The wheeled luggage base as claimed in claim 1, wherein: two limiting rods (14) which are symmetrical in the front and back are respectively arranged on the left end wall and the right end wall of the inner cavity of the transmission case (10) in a sliding mode, the limiting rods (14) can penetrate through the transmission case (10) and the roller case (15) and are inserted into limiting holes in the roller sliding block (18), and springs are connected between the limiting rods (14) and the end walls of the inner cavity of the transmission case (10) on the corresponding side.
3. The wheeled luggage base as claimed in claim 2, wherein: the lower end of the inner cavity of the transmission case (10) is provided with a groove, a pedal (23) is installed in the groove in a rotating mode, a T-shaped pull rod (12) is installed on the pedal (23) in a rotating mode, and first connecting rods (13) are respectively installed between the T-shaped pull rod (12) and the four limiting rods (14) in a hinged mode.
4. The wheeled luggage base as claimed in claim 1, wherein: a connecting plate (24) is fixedly installed between the front roller sliding block and the rear roller sliding block (18), and a rack (25) is fixedly installed on the connecting plate (24).
5. The wheeled luggage base as claimed in claim 1, wherein: and a first gear (26) is rotatably arranged in a reserved groove between the roller box (15) and the transmission box (10) on the transmission box (10).
6. The wheeled luggage base as claimed in claim 5, wherein: the first gear (26) can be meshed with the rack (25), a screw rod (21) is rotatably arranged in a reserved groove between the roller box (15) and the transmission box (10) on the transmission box (10), the front end and the rear end of the screw rod (21) are respectively provided with threads in opposite directions, a second gear (27) is fixedly arranged on the second gear (27), and the second gear (27) can be meshed with the first gear (26).
7. The wheeled luggage base as claimed in claim 1, wherein: the front end and the rear end of the transmission case (10) are respectively hinged with two support plates (11) which are bilaterally symmetrical, the lower ends of the support plates (11) are fixedly provided with anti-skid pads (22), and the lower edges of the anti-skid pads (22) are slightly lower than the lower end of the transmission case (10).
8. The wheeled luggage base as claimed in claim 7, wherein: four backup pad (11) are respectively being close to one side of transmission case (10) inner chamber is articulated to be installed nut piece (20), nut piece (20) are keeping away from articulated the one end processing of backup pad (11) has the screw hole, four screw hole on backup pad (11) can with the corresponding side respectively the screw thread engagement on lead screw (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295562.3A CN112841838A (en) | 2021-03-19 | 2021-03-19 | Luggage case base with telescopic idler wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295562.3A CN112841838A (en) | 2021-03-19 | 2021-03-19 | Luggage case base with telescopic idler wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112841838A true CN112841838A (en) | 2021-05-28 |
Family
ID=75993592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110295562.3A Withdrawn CN112841838A (en) | 2021-03-19 | 2021-03-19 | Luggage case base with telescopic idler wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112841838A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115067654A (en) * | 2022-05-06 | 2022-09-20 | 泉州锦林环保高新材料有限公司 | Four-wheel grounding PC draw-bar box |
-
2021
- 2021-03-19 CN CN202110295562.3A patent/CN112841838A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115067654A (en) * | 2022-05-06 | 2022-09-20 | 泉州锦林环保高新材料有限公司 | Four-wheel grounding PC draw-bar box |
| CN115067654B (en) * | 2022-05-06 | 2024-05-14 | 泉州锦林环保高新材料有限公司 | Four-wheel touchdown PC draw-bar box |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210528 |
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| WW01 | Invention patent application withdrawn after publication |