CN201362271Y - Foldable four-wheeled flatbed - Google Patents
Foldable four-wheeled flatbed Download PDFInfo
- Publication number
- CN201362271Y CN201362271Y CNU2009200525875U CN200920052587U CN201362271Y CN 201362271 Y CN201362271 Y CN 201362271Y CN U2009200525875 U CNU2009200525875 U CN U2009200525875U CN 200920052587 U CN200920052587 U CN 200920052587U CN 201362271 Y CN201362271 Y CN 201362271Y
- Authority
- CN
- China
- Prior art keywords
- bayonet lock
- castor
- flat truck
- stacker
- push
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The utility model discloses a foldable four-wheeled flatbed, which comprises a bearing part, a push-pull part, a castor part and an opening location device, wherein the push-pull part and the castor part are connected through a linkage device; the opening location device clamps the push-pull part and a rear castor in the open state, wherein the bearing part comprises a bearing rack, a bearing seat and a bearing plate which are mutually connected together; two rods of the push-pull part are hinged with the bearing seat through a connecting seat; the castor part comprises castors, connecting rods for connecting two or more castors, and castor sheaths; the castor sheaths are sleeved on the bearing rack; and a front castor location device clamping front castors when open is arranged between the castor sheaths of the front castors and the bearing part. When the flatbed is opened, the front castors and the rear castors are located simultaneously. Therefore, the location is very stable, and the foldable four-wheeled flatbed can be used conveniently.
Description
Technical field
The utility model relates to a kind of labour-saving flat truck device, particularly a kind of improvement technology that makes things convenient for folding to use, can carry the folded four-wheel flat truck of heavy article.
Technical background
On the airport, harbour, station or warehouse, when people need move heavier luggage or article, use flat truck mostly, more laborsaving, convenient.The Chinese patent 200710146724.7 of my application discloses a kind of castor received flat truck and castor registration device thereof that makes things convenient for folding to use, can carry heavy article.Its structure comprises bearing plate, push-and-pull part, castor, and two pole ends of push-and-pull part are articulated with carrier, and castor top caster wheel cover is sleeved on the carrier, is provided with castor between castor cover and the pole and opens, amounts to linkage.Its castor registration device comprise the left and right fastening device that locks the cover of caster wheel on the carrier two side arms and two poles respectively and with the slip cross bar of left and right fastening device interlock.This flat truck caster wheel can partly link with push-and-pull, and when bearing plate drew the push-and-pull part in, castor can be amounted to automatically, is convenient to keeping and transportation.But, because the unreasonable structure of its castor registration device, only trailing wheel is located, thereby make the push-and-pull part rock with respect to before and after the carrier meeting, the location of castor is also unstable simultaneously, when carrying than heavy articles, rocking that flat truck produced makes the user be difficult to control flat truck, makes troubles for actual the use.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, by improving the registration device between its push-and-pull part and the castor part, provide the four-wheel flat truck that fold of a kind of push-and-pull part with respect to strong fix between carrier and the castor thereof.
The technical solution of the utility model is: a kind of four-wheel flat truck that folds, comprise the bearing part, by linkage bonded assembly push-and-pull partial sum castor part, and the registration device of opening of fastening push-and-pull part and rear truckle under the open mode; Wherein the bearing part comprises carrier, stacker, the bearing plate that interconnects, and two poles of push-and-pull part are hinged by Connection Block and stacker; Castor partly comprises castor, connects the pipe link and the castor cover of two or more castors, the castor cover is sleeved on the carrier, it is characterized in that: the front truckle registration device that is provided with fastening front truckle under open mode between described front truckle caster wheel cover and the bearing part.
Specifically, described front truckle registration device comprise be arranged on castor part with the cooresponding locating rack in front truckle position, and the cooresponding guide frame in bearing part and locating rack position is carried in setting, be provided with the preceding bayonet lock that is parallel to each other with pipe link in the described guide frame, locating rack is provided with the knock hole that matches with preceding bayonet lock, described before bayonet lock with open registration device and link by link.
The described registration device of opening comprises and is arranged on bearing plate rear end and the cooresponding left and right contiguous block of two poles, contiguous block be provided with pole mutually fastening last bayonet lock, with the following bayonet lock of pipe link phase fastening, be respectively equipped with the knock hole that cooperates with upper and lower bayonet lock on two poles, the pipe link.
Described link is for connecting the pull bar of corresponding contiguous block and preceding bayonet lock.Perhaps described link is for connecting the steel rope of corresponding contiguous block and preceding bayonet lock; Be set with compression spring on the preceding bayonet lock, on the bayonet lock, the rear end was positioned on the guide frame before the front end of compression spring was fixed on.
The face that matches with pole on the described contiguous block is a cambered surface.
As further improvement of the utility model, be provided with between the last bayonet lock of described contiguous block and the following bayonet lock that middle bayonet lock, Connection Block, the pipe link of fastening are provided with the bayonet socket that cooperates with middle bayonet lock mutually with Connection Block; Middle bayonet lock is two wedge shaped detents, divides the and arranged on left and right sides that is located at the contiguous block front end face, and the fastening of two wedge shaped detents difference is in the bayonet socket of the and arranged on left and right sides of Connection Block rear end.
Further improve as of the present utility model, described bayonet lock down fastens with the pipe link inwall after passing through hole on the stacker, and the both sides of following bayonet lock are provided with wedge shaped projection, and the sidewall of stacker is provided with the breach that fastens with this wedge shaped projection.
It between described Connection Block lower surface and the trailing flank arc bonded assembly transition face, Connection Block is connected on the stacker by axle, knock hole on last bayonet lock disengaging pole and Connection Block, promote the push-and-pull part when above-mentioned axle rotates, the transition face of Connection Block promotes contiguous block backward, stays open the state that registration device unlocks.
Be provided with the cross bar that two contiguous blocks are linked into an integrated entity between the described left and right contiguous block, be provided with the opening of being convenient to spur cross bar with the cooresponding position of cross bar on the described bearing plate; Be provided with extension spring between described cross bar and the stacker, an end of spring is connected with cross bar, and the other end is connected with stacker.
In sum, the utility model compared with prior art, its beneficial effect is:
1, flat truck also is provided with the front truckle registration device except the registration device of opening between push-and-pull part and rear truckle part, and the location of castor is also unstable before and after making, during than heavy articles, flat truck can not produce wigwag motion in carrying.
2, be provided with the upper, middle and lower bayonet lock on the attaching parts of registration device opening, make the push-and-pull part more stable, rocking before and after in use can not producing with the location of bearing part, castor part.
Therefore 3, be provided with arc transiting surface at Connection Block, fold in the push-and-pull partial rotation, near in the process of carrying board, the contiguous block that can promote to open registration device moves backward, makes the state that the registration device maintenance unlocks of opening.
Description of drawings
Accompanying drawing 2 is the enlarged drawing at I place among Fig. 1;
Accompanying drawing 4 is the II place enlarged drawing among Fig. 3;
Accompanying drawing 5 is the III place enlarged drawing among Fig. 3;
Accompanying drawing 7 is an A place partial enlarged drawing among Fig. 6;
Accompanying drawing 8 is a B place partial enlarged drawing among Fig. 6;
Accompanying drawing 9 is the block diagram of the four-wheel flat truck of band bearing plate;
Accompanying drawing 10 is partly amounted to the block diagram of process for the flat truck push-and-pull;
Accompanying drawing 11 is the C place partial enlarged drawing among Figure 10;
Accompanying drawing 12 is the exploded drawings of four-wheel flat truck.
The specific embodiment
Below in conjunction with drawings and the specific embodiments the four-wheel flat truck that the utility model can fold is described further.
The flat truck of present embodiment mainly comprises the bearing part, by linkage bonded assembly push-and-pull partial sum castor part, and make push-and-pull part and castor partly stay open the registration device of opening of state.Shown in accompanying drawing 1,12, its bearing part comprises carrier 2, bearing plate 1 and stacker 22.Its push-and-pull partly comprises: handle 6, pole 4.Its castor system comprises: castor 3, and foot wheel carrier 33, connecting rod 13 and castor cover 31, homonymy caster wheel 3 connects into the castor group by connecting rod 13, and castor cover 31 is sleeved on the carrier 2.Carrier 2 is bent into U-shaped, and end links together with stacker 22 by a plurality of links 21.
Because the utility model mainly is to disclosed further improvement of receiving the castor flat truck in the Chinese patent 200710146724.7, the structure of its castor part and be consistent with the structure of amounting to, open linkage between the push-and-pull part, so be not explained in detail in the present embodiment.Now its improved structure is done detailed explanation.
Shown in accompanying drawing 2 to 12, be provided with the front truckle registration device of fastening front truckle under open mode between present embodiment middle plateform car front truckle caster wheel cover and the bearing part.This front truckle registration device comprises and being arranged on the pipe link 13 and the cooresponding locating rack 13a in front truckle position, and bearing plate 1 bottom and the cooresponding guide frame 1a in locating rack 13a position be set, shown in accompanying drawing 6,8, be provided with the preceding bayonet lock 91d that is parallel to each other with pipe link 13 in the guide frame 1a, locating rack 13a is provided with the knock hole 13b that matches with preceding bayonet lock 91d, and preceding bayonet lock 91d is connected with steel rope 14 by pull bar with the following bayonet lock 91b that opens registration device.When adopting steel rope 14 to connect, on the bayonet lock 91d, the rear end was positioned on the guide frame 1a before suit compression spring 15 on preceding bayonet lock 91d, the front end of compression spring 15 were fixed on.
The registration device of opening of present embodiment middle plateform car comprises and two poles, 4 cooresponding left and right contiguous blocks 9, is located at the last bayonet lock 91a of contiguous block 9 front ends, middle bayonet lock 91c, following bayonet lock 91b and pipe link 7.Left and right contiguous block 9 is arranged on stacker 22 rear sides, connects into an integral body by pipe link 7.Be respectively equipped with the knock hole 44 that cooperates with last bayonet lock 91a on two poles 4, pipe link 13 be provided with following bayonet lock 91b to the knock hole 13c that cooperates, the i.e. inwall of pipe link 13.
Be provided with the opening 1 of being convenient to spur cross bar 7 with the cross bar 7 cooresponding positions that two contiguous blocks 9 are linked into an integrated entity on the bearing plate 1; Be provided with extension spring 8 between cross bar 7 and the stacker 22, an end of spring 8 is connected with cross bar 7, and the other end is connected with stacker 22.
Between the trailing flank of Connection Block 41 and the lower surface arc bonded assembly transition face 41c, Connection Block 41 is connected on the stacker 22 of carrier 2 rear sides by the bearing pin 43 that passes gear piece 42 centers, when last bayonet lock 91a leaves knock hole 44 on the pole 4, when the bearing pin 43 of promotion push-and-pull part around gear piece 42 centers rotates, the transition face 41c of Connection Block 41 promotes contiguous block 9 backward, makes that open registration device keeps the state (as shown in figure 10) that unlocks.Meanwhile, by bayonet lock 91b under steel rope 14 bonded assemblys and preceding bayonet lock 91d interlock, bayonet lock 91d withdraws from the knock hole 13b (shown in accompanying drawing 6,8) on the front truckle locating rack 13a before making.On the contrary, when opening registration device and reset, following bayonet lock 91b resets, and preceding bayonet lock 91d resets under the effect of compression spring 15, fastening front truckle again, thus guarantee that flat truck is not easy to rock in the use of four-wheel flat truck, the convenient use.
Claims (10)
1. four-wheel flat truck that can fold comprises the bearing part, by linkage bonded assembly push-and-pull partial sum castor part, and the registration device of opening of fastening push-and-pull part and rear truckle under the open mode; Wherein the bearing part comprises carrier (2), stacker (22), the bearing plate (1) that interconnects, and two poles (4) of push-and-pull part are hinged by Connection Block (41) and stacker (22); Castor partly comprises castor (3), connects the pipe link (13) and the castor cover (31) of two or more castors, castor cover (31) is sleeved on the carrier (2), it is characterized in that: the front truckle registration device that is provided with fastening front truckle under open mode between described front truckle caster wheel cover and the bearing part.
2. the four-wheel flat truck that folds according to claim 1, it is characterized in that: described front truckle registration device comprise be arranged on castor part with the cooresponding locating rack in front truckle position (13a), and the cooresponding guide frame in bearing part and locating rack position (1a) is carried in setting, be provided with the preceding bayonet lock (91d) that is parallel to each other with pipe link in the described guide frame, locating rack is provided with the knock hole (13b) that matches with preceding bayonet lock, described before bayonet lock with open registration device and link by link.
3. the four-wheel flat truck that folds according to claim 2, it is characterized in that: the described registration device of opening comprises and is arranged on bearing plate (1) rear end and the cooresponding left and right contiguous blocks of two poles (4) (9), contiguous block (9) be provided with pole mutually fastening last bayonet lock (91a), with the following bayonet lock (91b) of pipe link (13) phase fastening, be respectively equipped with the knock hole that cooperates with upper and lower bayonet lock (91a, 91b) on two poles, the pipe link (13).
4. the four-wheel flat truck that folds according to claim 3 is characterized in that: described link is for connecting the pull bar of corresponding contiguous block and preceding bayonet lock.
5. the four-wheel flat truck that folds according to claim 3 is characterized in that: described link is for connecting the steel rope (14) of corresponding contiguous block and preceding bayonet lock; Be set with compression spring (15) on the preceding bayonet lock, the front end of compression spring is fixed on the preceding bayonet lock (91d), and the rear end is positioned on the guide frame (1a).
6. according to each described four-wheel flat truck that folds of claim 2 to 5, it is characterized in that: the face that matches with pole on the described contiguous block is cambered surface (9e).
7. according to each described four-wheel flat truck that folds of claim 2 to 5, it is characterized in that: be provided with between the last bayonet lock (91a) of described contiguous block (9) and the following bayonet lock (91b) that middle bayonet lock (91c), Connection Block (41), the pipe link (13) of fastening are provided with the bayonet socket that cooperates with middle bayonet lock (91c) mutually with Connection Block (41); Middle bayonet lock is two wedge shaped detents, divides the and arranged on left and right sides that is located at the contiguous block front end face, and the fastening of two wedge shaped detents difference is in the bayonet socket of the and arranged on left and right sides of Connection Block rear end.
8. according to each described four-wheel flat truck that folds of claim 2 to 5, it is characterized in that: described down bayonet lock (91b) fastens with pipe link (13) inwall after passing through hole on the stacker (22), the both sides of following bayonet lock (91b) are provided with wedge shaped projection, and the sidewall of stacker (22) is provided with the breach that fastens with this wedge shaped projection.
9. according to each described four-wheel flat truck that folds of claim 2 to 4, it is characterized in that: be arc bonded assembly transition face (41c) between described Connection Block (41) lower surface and the trailing flank, Connection Block (41) is connected on the stacker (22) by axle, knock hole on last bayonet lock disengaging pole and Connection Block, promote the push-and-pull part when above-mentioned axle rotates, the transition face of Connection Block (41c) promotes contiguous block (9) backward, stays open the state that registration device unlocks.
10. according to each described four-wheel flat truck that folds of claim 2 to 5, it is characterized in that: be provided with the cross bar that two contiguous blocks are linked into an integrated entity between the described left and right contiguous block (9), be provided with the opening of being convenient to spur cross bar with the cooresponding position of cross bar on the described bearing plate; Be provided with extension spring between described cross bar and the stacker, an end of spring is connected with cross bar, and the other end is connected with stacker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200525875U CN201362271Y (en) | 2009-03-13 | 2009-03-13 | Foldable four-wheeled flatbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200525875U CN201362271Y (en) | 2009-03-13 | 2009-03-13 | Foldable four-wheeled flatbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201362271Y true CN201362271Y (en) | 2009-12-16 |
Family
ID=41472931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200525875U Expired - Fee Related CN201362271Y (en) | 2009-03-13 | 2009-03-13 | Foldable four-wheeled flatbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201362271Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013148691A1 (en) * | 2012-03-26 | 2013-10-03 | Rehrig Pacific Company | Dolly |
| CN108724305A (en) * | 2018-04-30 | 2018-11-02 | 中山市精镀机电设备有限公司 | A kind of cutting equipment |
| CN109969237A (en) * | 2017-12-28 | 2019-07-05 | 东莞市全乐电动科技有限公司 | A kind of semi-automatic portable four-wheel linkage folding trailer |
| WO2021008231A1 (en) * | 2019-07-15 | 2021-01-21 | 闵航 | Foldable tool trolley |
-
2009
- 2009-03-13 CN CNU2009200525875U patent/CN201362271Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013148691A1 (en) * | 2012-03-26 | 2013-10-03 | Rehrig Pacific Company | Dolly |
| CN109969237A (en) * | 2017-12-28 | 2019-07-05 | 东莞市全乐电动科技有限公司 | A kind of semi-automatic portable four-wheel linkage folding trailer |
| CN109969237B (en) * | 2017-12-28 | 2023-12-29 | 东莞市全乐电动科技有限公司 | Semi-automatic portable four-wheel linkage folding small trailer |
| CN108724305A (en) * | 2018-04-30 | 2018-11-02 | 中山市精镀机电设备有限公司 | A kind of cutting equipment |
| WO2021008231A1 (en) * | 2019-07-15 | 2021-01-21 | 闵航 | Foldable tool trolley |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2688600Y (en) | Foldable baby trailer frame | |
| CN203698545U (en) | Movable joint used for folding frame | |
| WO2012152069A1 (en) | Box-shaped foldable electric bicycle | |
| CN204415621U (en) | Modification perambulator | |
| CN201362271Y (en) | Foldable four-wheeled flatbed | |
| CN201432709Y (en) | Caster positioning and collecting device of four-wheel flat truck | |
| CN201257980Y (en) | Flat car capable of receiving caster wheel | |
| CN2693591Y (en) | Collapsible baby carriage | |
| CN204021142U (en) | A kind of combination wheel holder locking apparatus of electric foldable vehicle | |
| CN201792961U (en) | Folding electric tricycle | |
| CN209667295U (en) | Folded-Type Electrical Tricycle | |
| CN105480354A (en) | Multifunctional portable electric trolley | |
| CN203001381U (en) | Rear-wheel synchronous folding device of rollator | |
| CN101962055B (en) | Folding electric tricycle | |
| CN205327290U (en) | Novel quick unblock folding mechanism of stay cord | |
| CN207403854U (en) | A kind of folding tricycle | |
| CN201932295U (en) | Small-sized four-wheel electric car | |
| CN206466102U (en) | A kind of foldable child tricycle | |
| CN201325475Y (en) | Telescopic link structure of child pushchair or dining chair | |
| CN201849509U (en) | Baby stroller | |
| CN209454822U (en) | A kind of four-wheel damping folding pushchair | |
| CN2483285Y (en) | Baby carriage | |
| CN218463797U (en) | Multifunctional easy-to-fold pedal bicycle | |
| CN209426950U (en) | A kind of fold mechanism for Segway Human Transporter | |
| CN202574514U (en) | Scooter luggage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20110313 |