CN221214297U - Double-box telescopic self-unloading trailer - Google Patents
Double-box telescopic self-unloading trailer Download PDFInfo
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- CN221214297U CN221214297U CN202421021707.6U CN202421021707U CN221214297U CN 221214297 U CN221214297 U CN 221214297U CN 202421021707 U CN202421021707 U CN 202421021707U CN 221214297 U CN221214297 U CN 221214297U
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- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 230000003137 locomotive effect Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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Abstract
The utility model discloses a double-box telescopic self-unloading trailer which comprises two trailers, namely a front trailer and a rear trailer, wherein the two trailers are connected through a telescopic mechanism, the telescopic mechanism can be telescopic to enable the two trailers to be close to or far away from each other, hydraulic tipping devices are arranged on the two trailers, the hydraulic tipping devices are rear tipping devices, when the two trailers are located at the farthest distance, the front trailer is unloaded to an area between the two trailers, and a shifting top device is arranged on the rear trailer. According to the utility model, by arranging the telescopic mechanism, a sufficient distance is generated between the two trailers, and the goods of the front trailer can be unloaded to the area between the two trailers, so that the requirement of randomly selecting and unloading the container of the front trailer or the rear trailer is further met; meanwhile, the unloading area of the front trailer is a telescopic beam position, so that cargoes are prevented from entering the frame and the wheel set, and the cargoes are convenient to clean; by arranging the lifting auxiliary wheels and the shifting roof device, the two trailers are conveniently separated from the unloading area integrally.
Description
Technical Field
The utility model relates to the technical field of transportation equipment, in particular to a double-box telescopic dump trailer.
Background
In order to improve the freight efficiency, a container semitrailer is often loaded with two containers at the same time on the premise of not overloading. And the common truck for loading bulk materials can be unloaded through a dump truck, and also can be unloaded through a hydraulic turning plate unloading device. However, the existing semitrailer with double containers cannot realize rapid unloading, so that the unloading efficiency of the double containers is low, the unloading time is long, and the freight efficiency is reduced.
To solve this problem, chinese patent publication No. CN218988196U discloses a hydraulic flap unloading device for double container unloading, which lifts and unloads the whole freight vehicle loaded with double containers by providing a large flap platform and being equipped with a hydraulic cylinder and a wheel stopper. However, this technical solution has the following problems: because the whole freight vehicle loaded with the double-box cargoes is lifted, the whole load weight is large, and the investment of the platform structure and the hydraulic system is excessive; the unloading position of the equipment cannot be easily changed after the equipment is put into operation. The Chinese patent document with the publication number of CN102923036A discloses a double-container semi-trailer rear unloading vehicle, a front carriage and a rear carriage with a hydraulic lifting system are arranged on a vehicle frame, so that the double-container transportation and self-unloading are realized, and the technical scheme has the advantages of small equipment investment and flexible unloading places. However, the following problems still exist in this technical scheme: firstly, two containers must be lifted and dropped according to a fixed sequence, the root is that the adjacent distance between the front carriage and the rear carriage is too small, if the rear container is not lifted to a yielding position, the front container cannot be lifted, as described in the beneficial effect in the literature, when the rear container is lifted, the rear container is lifted in place, the front container is lifted again, and after the front container drops, the rear container can be dropped; if the rear container is not lifted, the front container cannot be operated. Secondly, when the front container is unloaded, the bulk cargo can fall into the frame and the wheel set below the rear container, so that the bulk cargo is inconvenient to clean, if the bulk cargo is not cleaned, the normal falling of the rear container can be influenced, the lifting hydraulic system of the rear container needs to be kept in a lifting state for a long time, the falling action can be carried out after the cleaning work is completed, and the energy is wasted, so that the hydraulic system is easy to damage.
Disclosure of utility model
The utility model aims to solve the problems, and provides a double-box telescopic self-unloading trailer which can meet the demand of randomly selecting a container for unloading a front trailer or a container for unloading a rear trailer, is convenient for cleaning cargoes, can realize rapid lifting and falling of the containers, shortens unloading time and improves unloading efficiency.
The technical scheme adopted by the utility model for achieving the purpose is as follows:
The utility model provides a flexible self-discharging trailer of two casees, includes two trailers, preceding trailer and back trailer promptly, connects through telescopic machanism between two trailers, thereby telescopic machanism can stretch out and draw back and make two trailers be close to each other or keep away from, all is equipped with hydraulic pressure tipping bucket device on two trailers, hydraulic pressure tipping bucket device is back tipping bucket device, when two trailers are located closest, fixes through locking device, when two trailers are located furthest, preceding trailer is unloaded to the region between two trailers, and need not the container of lifting back trailer earlier, has realized the demand of the container of trailer before the random selection uninstallation or the container of back trailer. Therefore, the cargoes of the containers of the front trailer and the rear trailer can be respectively unloaded at different places according to actual demand conditions, and the transportation flexibility is greatly improved. And a shifting top device is arranged on the rear trailer.
Preferably, the telescopic mechanism is a telescopic beam and a telescopic beam box body respectively arranged on the front trailer and the rear trailer, and the telescopic beam stretches into the telescopic beam box body.
Preferably, the telescopic mechanism further comprises a telescopic beam driving oil cylinder arranged in the telescopic beam, the movable end of the telescopic beam driving oil cylinder is connected with the tail end of the telescopic beam box body, and the telescopic beam box body are connected in a sliding mode. The telescopic matching of the telescopic beam and the telescopic beam box body can be realized by arranging a gear motor to match with a gear and a rack.
Preferably, an upper sliding block, a lower sliding block and a side sliding block are arranged in the telescopic beam box body. The friction force between the telescopic beam and the telescopic beam box body is reduced by arranging the sliding blocks.
Preferably, the locking device is a locking pin and a locking joint respectively arranged on the front trailer and the rear trailer.
Preferably, the front trailer comprises a first hydraulic tipping bucket support, a hydraulic control box, a telescopic beam, a lifting auxiliary wheel, a hydraulic pipe coiling device and a hydraulic pipe, wherein the hydraulic control box is positioned at one side of the hydraulic tipping bucket support, the telescopic beam is positioned at the rear of the first hydraulic tipping bucket support, the lifting auxiliary wheel is arranged at one lower part of the hydraulic tipping bucket support, and the first hydraulic tipping bucket support is further provided with the hydraulic pipe coiling device and the hydraulic pipe connected with the hydraulic pipe coiling device.
Preferably, a hydraulic pipe rolling support matched with the hydraulic pipe is arranged on the first hydraulic tipping bucket support. The hydraulic pipe passing through the hydraulic pipe rolling bracket is connected to the hydraulic system of the rear trailer and is lengthened or shortened along with the extension and contraction of the telescopic mechanism by the rotation of the hydraulic pipe rolling device, so that the hydraulic supply of the rear trailer can be realized without separately arranging a hydraulic station on the rear trailer.
Preferably, the front trailer further comprises air pipes, pneumatic container rotary locks are arranged at four corners of the first hydraulic tipping bucket support, a pneumatic vibrating device is arranged in the middle of the first hydraulic tipping bucket support, and the air pipes are connected with the pneumatic container rotary locks and the pneumatic vibrating device.
Preferably, the rear trailer comprises a hydraulic tipping bucket support II, a shifting top device, a telescopic beam box body and a wheel set, wherein the bottom of the rear end of the hydraulic tipping bucket support II is provided with the shifting top device, the side surface of the hydraulic tipping bucket support II is provided with a shifting top hydraulic valve of the shifting top device, the bottom of the hydraulic tipping bucket support II is provided with the telescopic beam box body and the wheel set, four corners of the hydraulic tipping bucket support II are provided with pneumatic container rotary locks, the middle part of the hydraulic tipping bucket support II is provided with a pneumatic vibrating device, an air pipe is connected with the pneumatic container rotary locks and the pneumatic vibrating device, and the hydraulic pipe is connected with a hydraulic system of the hydraulic tipping bucket support II and the shifting top hydraulic valve.
The hydraulic tipping bucket support I and the hydraulic tipping bucket support II are provided with pneumatic container rotary locks, so that the quick fixing and separating of the containers are realized, and the hydraulic tipping bucket support I and the hydraulic tipping bucket support II are provided with pneumatic vibrating devices, so that the unloaded residual materials are cleaned.
Preferably, the double-box telescopic dump trailer further comprises a locomotive, and a hydraulic station for providing hydraulic power for the front trailer and the rear trailer and an air pump for providing air pressure are arranged on the locomotive.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, by arranging the telescopic mechanism, a sufficient distance is generated between the two trailers, and the goods of the front trailer can be unloaded to the area between the two trailers, so that the requirement of randomly selecting and unloading the container of the front trailer or the container of the rear trailer is further met; meanwhile, the unloading area of the front trailer is a telescopic beam position, so that goods are prevented from entering the frame and the wheel set, the goods are convenient to clean, the quick lifting and falling of the container are realized, the lifting auxiliary wheels and the shifting roof device are arranged, the two trailers are convenient to be integrally separated from the unloading area, the unloading time is shortened, and the unloading efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a dual-bin telescoping dump trailer;
FIG. 2 is a structural exploded view of a dual-box telescoping dump trailer;
FIG. 3 is a schematic structural view of a front trailer;
FIG. 4 is an enlarged view of a portion of FIG. 3at A;
FIG. 5 is a partial enlarged view at B in FIG. 3;
FIG. 6 is a schematic structural view of a rear trailer;
FIG. 7 is a schematic diagram of a first unloading process of a dual-box telescopic dump trailer;
FIG. 8 is a second schematic diagram of a discharge process of a dual-box telescopic dump trailer;
FIG. 9 is a third schematic illustration of a discharge process of a dual-box telescoping dump trailer;
FIG. 10 is a schematic diagram IV of a discharge process of a dual-box telescopic dump trailer;
fig. 11 is a schematic diagram five of a unloading process of the double-box telescopic dump trailer.
Reference numerals illustrate:
1. A front trailer; 1-1, a first hydraulic tipping bucket bracket; 1-1-1, a pneumatic container twist lock; 1-1-2, pneumatic vibrating device; 1-2, a hydraulic control box; 1-3, a telescopic beam; 1-3-1, locking pin; 1-3-2, a telescopic beam driving oil cylinder; 1-4, lifting auxiliary wheels; 1-5, a hydraulic pipe coiling device; 1-6, a hydraulic pipe; 1-6-1, a hydraulic pipe rolling bracket; 1-7, trachea; 2. a rear trailer; 2-1, a hydraulic tipping bucket bracket II; 2-2, a displacement top device; 2-2-1, a shift top hydraulic valve; 2-3, telescoping Liang Xiangti; 2-3-1, locking the joint; 2-3-2, upper and lower sliding blocks; 2-3-3, side sliding blocks; 2-4, a wheel group; 3. a headstock; 4. a container; 5. and (5) material.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and the specific embodiments, so that those skilled in the art can better understand the technical solutions of the present utility model.
As shown in fig. 1 and 2, a two-box telescopic self-unloading trailer comprises two trailers, namely a front trailer 1 and a rear trailer 2, wherein the two trailers are connected through a telescopic mechanism, the telescopic mechanism can be telescopic to enable the two trailers to be close to or far away from each other, hydraulic tipping devices are arranged on the two trailers, the hydraulic tipping devices are rear tipping devices, when the two trailers are located at the nearest distance, the two trailers are fixed through locking devices, when the two trailers are located at the farthest distance, the front trailer 1 is unloaded to an area between the two trailers, the container 4 of the rear trailer 2 does not need to be lifted, and the requirement of randomly selecting and unloading the container 4 of the front trailer 1 or the container 4 of the rear trailer 2 is met. Therefore, the cargoes of the container 4 of the front trailer and the rear trailer can be respectively unloaded at different places according to actual demand conditions, and the transportation flexibility is greatly improved. The rear trailer 2 is provided with a shifting roof device 2-2.
As shown in fig. 3 and 6, the telescopic mechanism is a telescopic beam 1-3 and a telescopic beam box 2-3 which are respectively arranged on the front trailer 1 and the rear trailer 2, and the telescopic beam 1-3 stretches and contracts in the telescopic beam box 2-3.
As shown in fig. 3, the telescopic mechanism further comprises a telescopic beam driving oil cylinder 1-3-2 arranged in the telescopic beam 1-3, the movable end of the telescopic beam driving oil cylinder 1-3-2 is connected with the tail end of the telescopic beam box body 2-3, and the telescopic beam 1-3 is in sliding connection with the telescopic beam box body 2-3. The telescopic matching of the telescopic beam 1-3 and the telescopic beam box body 2-3 can be realized by arranging a gear motor to match with a gear and a rack.
As shown in FIG. 6, an upper slider 2-3-2 and a lower slider 2-3-3 are arranged in the telescopic beam box body 2-3. The friction force between the telescopic beams 1-3 and the telescopic beam box body 2-3 is reduced by arranging the sliding blocks.
As shown in fig. 3, 5 and 6, the locking means are locking pins 1-3-1 and locking joints 2-3-1 provided on the front trailer 1 and the rear trailer 2, respectively.
As shown in fig. 3, the front trailer 1 comprises a hydraulic tipping bucket support 1-1, a hydraulic control box 1-2, a telescopic beam 1-3, a lifting auxiliary wheel 1-4, a hydraulic pipe coiling device 1-5 and a hydraulic pipe 1-6, wherein the hydraulic control box 1-2 is positioned on the side of the hydraulic tipping bucket support 1-1, the telescopic beam 1-3 is positioned behind the hydraulic tipping bucket support 1-1, the lifting auxiliary wheel 1-4 is arranged at the lower part of the hydraulic tipping bucket support 1-1, and the hydraulic pipe coiling device 1-5 and the hydraulic pipe 1-6 connected with the hydraulic pipe coiling device 1-5 are also arranged on the hydraulic tipping bucket support 1-1.
As shown in fig. 3 and 4, a hydraulic pipe rolling bracket 1-6-1 matched with the hydraulic pipe 1-6 is arranged on the hydraulic tipping bucket bracket 1-1. The hydraulic pipe 1-6 passing through the hydraulic pipe rolling bracket 1-6-1 is connected to the hydraulic system of the rear trailer 2 and is lengthened or shortened with the expansion and contraction of the telescopic mechanism by the rotation of the hydraulic pipe reel 1-5, so that the hydraulic supply of the rear trailer 2 can be realized without separately providing a hydraulic station on the rear trailer 2. The front trailer 1 further comprises an air pipe 1-7, pneumatic container rotary locks 1-1-1 are arranged at four corners of the hydraulic tipping bucket support 1-1, a pneumatic vibrating device 1-1-2 is arranged in the middle of the hydraulic tipping bucket support, and the air pipe 1-7 is connected with the pneumatic container rotary locks 1-1-1 and the pneumatic vibrating device 1-1-2.
As shown in fig. 6, the rear trailer 2 includes a hydraulic tipping bucket support 2-1, a shifting top device 2-2, a telescopic beam box 2-3 and a wheel set 2-4, the bottom of the rear end of the hydraulic tipping bucket support 2-1 is provided with the shifting top device 2-2, the side surface is provided with a shifting top hydraulic valve 2-2-1 of the shifting top device 2-2, the bottom is provided with the telescopic beam box 2-3 and the wheel set 2-4, four corners of the hydraulic tipping bucket support 2-1 are provided with pneumatic container twist locks 1-1-1, the middle part is provided with pneumatic vibrating devices 1-1-2, the air pipes 1-7 are connected with the pneumatic container twist locks 1-1-1 and the pneumatic vibrating devices 1-1-2, and the hydraulic pipes 1-6 are connected with a hydraulic system of the hydraulic tipping bucket support 2-1 and the shifting top hydraulic valve 2-2-1.
The hydraulic tipping bucket support 1-1 and the hydraulic tipping bucket support 2-1 are provided with the pneumatic container rotary lock 1-1-1, so that the quick fixing and separating of the container are realized, and the hydraulic tipping bucket support 1-1 and the hydraulic tipping bucket support 2-1 are provided with the pneumatic vibrating device 1-1-2, so that the unloaded residual materials are cleaned.
As shown in fig. 1 and 2, the double-box telescopic dump trailer further comprises a headstock 3, and a hydraulic station for providing hydraulic power for the front trailer 1 and the rear trailer 2 and an air pump for providing air pressure are arranged on the headstock 3.
The procedure when the container 4 of the trailer 1 is unloaded after unloading the container 4 of the trailer 2, will now be described:
As shown in fig. 7-11, the vehicle is first parked to the discharge position. Before the container 4 of the rear trailer 2 is turned up, an auxiliary wheel operation valve in the hydraulic control box 1-2 is operated, the lifting auxiliary wheel 1-4 is put down to support the trailer, the hydraulic tipping bucket support 2-1 is operated to lift and discharge the container 4 of the rear trailer 2, and in the discharging process, the trailer moves forward to prevent the material 5 from blocking the container door and blocking the discharging. When the unloading is finished, the pneumatic vibrating device 1-1-2 is operated, the residual materials which are not unloaded in the container 4 are cleaned, after the residual materials are cleaned, a driver operates the container 4 of the trailer 2 which falls down, on-site personnel close the container door and pull out the locking pin 1-3-1, the driver slowly starts the vehicle forwards, and the on-site personnel control the telescopic beam driving oil cylinder 1-3-2 to extend to a preset length in a matched mode, and the driver parks the vehicle. The driver operates the lifting of the hydraulic tipping bucket support 1-1 to discharge the container 4 of the front trailer 1, and the trailer moves forward in the discharging process to prevent the material 5 from blocking the container door and blocking the discharging. When the unloading is completed, the pneumatic vibrating device 1-1-2 is operated to clean the residual materials which are not unloaded in the container 4, and after the residual materials are cleaned, the container 4 of the front trailer 1 is operated to fall down. At this time, the telescopic beams 1-3 are buried by the materials 5 poured out of the container 4 of the front trailer 1, the field personnel need to operate the shifting top hydraulic valve 2-2-1 at the rear part to control the shifting top device 2-2 to shift the front trailer 1 and the rear trailer 2 to an angle, then the buried telescopic beams 1-3 are moved out, after the telescopic beams 1-3 are cleaned, the auxiliary wheel operating valve in the hydraulic control box 1-2 is operated to lift the lifting auxiliary wheels 1-4, after a driver confirms, the trailer is driven out of the unloading place, the field personnel close and bind the container door, then the telescopic beams 1-3 are fully retracted through the telescopic beam driving oil cylinder 1-3-2, and when the front trailer and the rear trailer are moved to the original nearest position, the locking pin 1-3-1 is inserted at the locking joint 2-3-1 to fix the front trailer and the rear trailer.
The embodiments of the present utility model have been described in detail by way of examples, but the descriptions are merely exemplary of the embodiments of the present utility model and are not to be construed as limiting the scope of the embodiments of the present utility model. The protection scope of the embodiments of the utility model is defined by the claims. In the technical scheme of the embodiment of the utility model, or under the inspired by those skilled in the art, similar technical schemes are designed within the spirit and the protection scope of the embodiment of the utility model, or equivalent changes and improvements made to the application scope are still included in the patent coverage protection scope of the embodiment of the utility model.
Claims (10)
1. The utility model provides a flexible self-discharging trailer of double cassette, its characterized in that, including two trailers, preceding trailer (1) and back trailer (2) promptly, connect through telescopic machanism between two trailers, thereby telescopic machanism can stretch out and draw back and make two trailers be close to each other or keep away from, all be equipped with hydraulic pressure tipping bucket device on two trailers, hydraulic pressure tipping bucket device is back tipping bucket device, when two trailers are located closest, fixes through locking device, when two trailers are located furthest, preceding trailer (1) are unloaded to the region between two trailers, be equipped with on back trailer (2) and shift top device (2-2).
2. The dual box telescopic dump trailer of claim 1, wherein the telescopic mechanism is a telescopic beam (1-3) and a telescopic Liang Xiangti (2-3) respectively arranged on the front trailer (1) and the rear trailer (2), the telescopic beam (1-3) telescoping within the telescopic Liang Xiangti (2-3).
3. The double-box telescopic dump trailer according to claim 2, wherein the telescopic mechanism further comprises a telescopic beam driving oil cylinder (1-3-2) arranged in the telescopic beam (1-3), the movable end of the telescopic beam driving oil cylinder (1-3-2) is connected with the tail end of the telescopic Liang Xiangti (2-3), and the telescopic beam (1-3) is in sliding connection with the telescopic Liang Xiangti (2-3).
4. A double-box telescopic dump trailer according to claim 3, wherein an upper sliding block (2-3-2) and a lower sliding block (2-3-3) are arranged in the telescopic Liang Xiangti (2-3).
5. The double-box telescopic dump trailer according to claim 1, wherein the locking device is a locking pin (1-3-1) and a locking joint (2-3-1) arranged on the front trailer (1) and the rear trailer (2), respectively.
6. The double-box telescopic dump trailer according to claim 1, wherein the front trailer (1) comprises a first hydraulic tipping bucket support (1-1), a hydraulic control box (1-2), a telescopic beam (1-3), a lifting auxiliary wheel (1-4), a hydraulic pipe coiling device (1-5) and a hydraulic pipe (1-6), the hydraulic control box (1-2) is located on the side of the first hydraulic tipping bucket support (1-1), the telescopic beam (1-3) is located behind the first hydraulic tipping bucket support (1-1), the lifting auxiliary wheel (1-4) is arranged on the lower portion of the first hydraulic tipping bucket support (1-1), and the hydraulic pipe coiling device (1-5) and the hydraulic pipe (1-6) connected with the hydraulic pipe coiling device (1-5) are further arranged on the first hydraulic tipping bucket support (1-1).
7. The double-box telescopic dump trailer according to claim 6, wherein the first hydraulic tipping bucket support (1-1) is provided with a hydraulic pipe rolling support (1-6-1) matched with the hydraulic pipe (1-6).
8. The double-box telescopic self-unloading trailer according to claim 6, wherein the front trailer (1) further comprises an air pipe (1-7), pneumatic container rotary locks (1-1-1) are arranged at four corners of the hydraulic tipping bucket support one (1-1), pneumatic vibrating devices (1-1-2) are arranged in the middle of the hydraulic tipping bucket support one (1-1), and the air pipe (1-7) is connected with the pneumatic container rotary locks (1-1-1) and the pneumatic vibrating devices (1-1-2).
9. The double-box telescopic self-unloading trailer according to claim 8, wherein the rear trailer (2) comprises a hydraulic tipping bucket support two (2-1), a shifting roof device (2-2), a telescopic Liang Xiangti (2-3) and a wheel group (2-4), the shifting roof device (2-2) is arranged at the bottom of the rear end of the hydraulic tipping bucket support two (2-1), a shifting roof hydraulic valve (2-2-1) of the shifting roof device (2-2) is arranged on the side face of the hydraulic tipping bucket support two (2-1), the telescopic Liang Xiangti (2-3) and the wheel group (2-4) are arranged at the bottom of the hydraulic tipping bucket support two (2-1), a pneumatic container rotary lock (1-1-1) is arranged at four corners of the hydraulic tipping bucket support two (2-1), a pneumatic vibrating device (1-1-2) is arranged in the middle of the hydraulic tipping bucket support two (2-1), the pneumatic pipe (1-7) is connected with the pneumatic container rotary lock (1-1-1-2) and the pneumatic vibrating device (1-2), and the hydraulic pipe (1-6) is connected with the hydraulic system of the hydraulic tipping bucket support two (2-2-1).
10. The double-box telescopic dump trailer according to any one of claims 1-9, further comprising a locomotive (3), wherein a hydraulic station for providing hydraulic power for the front trailer (1) and the rear trailer (2) and an air pump for providing air pressure are arranged on the locomotive (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421021707.6U CN221214297U (en) | 2024-05-13 | 2024-05-13 | Double-box telescopic self-unloading trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421021707.6U CN221214297U (en) | 2024-05-13 | 2024-05-13 | Double-box telescopic self-unloading trailer |
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| Publication Number | Publication Date |
|---|---|
| CN221214297U true CN221214297U (en) | 2024-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421021707.6U Active CN221214297U (en) | 2024-05-13 | 2024-05-13 | Double-box telescopic self-unloading trailer |
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| Country | Link |
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| CN (1) | CN221214297U (en) |
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2024
- 2024-05-13 CN CN202421021707.6U patent/CN221214297U/en active Active
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