CN222959706U - Rear-unloading semitrailer assembly turnover type crawling ladder and rear-unloading semitrailer - Google Patents
Rear-unloading semitrailer assembly turnover type crawling ladder and rear-unloading semitrailer Download PDFInfo
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- CN222959706U CN222959706U CN202421956886.2U CN202421956886U CN222959706U CN 222959706 U CN222959706 U CN 222959706U CN 202421956886 U CN202421956886 U CN 202421956886U CN 222959706 U CN222959706 U CN 222959706U
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Abstract
本实用新型提供一种后卸半挂车装配翻转式爬梯及后卸半挂车，包括爬梯和一对用于安装在半挂车车架一侧的装配式固定撑，一对所述装配式固定撑沿所述半挂车车架的长度方向设置，所述爬梯的底端设置有一对旋转套管，所述旋转套管旋转套设在位于内侧的装配式固定撑上，位于外侧的所述装配式固定撑上设置有用于把持所述爬梯顶端的锁扣。该后卸半挂车装配翻转式爬梯能够摆脱爬梯的安装依赖性，使爬梯不再依赖车厢即可实现爬梯布置，且还能够避免爬梯与半挂车零部件的干涉问题。
The utility model provides a rear-unloading semi-trailer equipped with a flip-type ladder and a rear-unloading semi-trailer, comprising a ladder and a pair of assembled fixing supports for installation on one side of a semi-trailer frame, wherein the pair of assembled fixing supports are arranged along the length direction of the semi-trailer frame, a pair of rotating sleeves are arranged at the bottom end of the ladder, the rotating sleeves are rotatably sleeved on the assembled fixing supports located on the inner side, and a lock for holding the top end of the ladder is arranged on the assembled fixing supports located on the outer side. The rear-unloading semi-trailer equipped with a flip-type ladder can get rid of the installation dependence of the ladder, so that the ladder can be arranged without relying on the carriage, and can also avoid the interference problem between the ladder and the parts of the semi-trailer.
Description
Technical Field
The utility model relates to the field of rear-unloading semitrailers, in particular to a rear-unloading semitrailer assembly turnover type crawling ladder and a rear-unloading semitrailer.
Background
A semitrailer is a trailer in which the axle is placed behind the center of gravity of the vehicle and is equipped with hitch devices that can transfer horizontal and vertical forces to the tractor. The semi-trailer is generally a three-axle semi-trailer, which is classified into an eleven-meter bin semi-trailer, a thirteen-meter bin semi-trailer, a low-bed semi-trailer and the like, and is a heavy transportation vehicle connected with a semi-trailer head through a traction pin. Semitrailers are often loaded with ladders for high-rise operations and the like. At present, the traditional cat ladder is generally welded at the left side position of the front end of a carriage and consists of a circular pipe and a plurality of middle circular pipe cross braces. However, some carriages need to be broken into multiple layers, and some carriages need to be arranged on the inner side of another carriage, so that the carriages can interfere with other carriages or other parts after welding, and cannot be installed, thereby bringing inconvenience to subsequent use.
The utility model patent with the bulletin number of CN217672399U discloses a folding cat ladder of a flat semi-trailer, which comprises a ladder body, a sliding rod and a supporting base, wherein the supporting base is arranged at the bottom of the ladder body, a plurality of reinforcing plates are arranged on the outer side and the back side of the ladder body, a plurality of limiting holes are formed in the side walls of the two sides of the ladder body, fixing grooves are formed in the side walls of the two sides of the inside of the ladder body, the sliding rod is arranged in the fixing grooves, grooves are formed in the inner side walls of the sliding rod, and connecting rods are arranged between the grooves. The folding cat ladder of the flat semi-trailer is simple in structure and convenient to use, but the folding cat ladder is single in installation state and does not have the overturning function.
Disclosure of utility model
In order to get rid of the installation dependence of the crawling ladder, the crawling ladder can be arranged without depending on a carriage, and the interference problem of the crawling ladder and the parts of the semitrailer can be avoided, the utility model adopts the technical scheme that the rear-unloading semitrailer assembled turnover crawling ladder comprises the crawling ladder and a pair of assembled fixed supports arranged on one side of a semitrailer frame, the pair of assembled fixed supports are arranged along the length direction of the semitrailer frame,
The bottom of cat ladder is provided with a pair of rotatory sleeve pipe, rotatory cover of rotatory sleeve pipe is established and is located the inboard on the fixed support of assembled, be located the outside on the fixed support of assembled be provided with be used for holding the hasp on cat ladder top.
Based on the above, the assembled fixing support comprises a fixing plate connected with the semitrailer frame, and a fixing rod is arranged on the fixing plate. In order to avoid tearing at the bolt hole after installation, a reinforcing plate for obliquely supporting the fixing rod is further arranged between the root of the fixing rod and the lower part of the fixing plate.
Based on the above, the cat ladder comprises a pair of longitudinal supports, a plurality of transverse supports are connected between the pair of longitudinal supports, and the transverse supports are distributed at equal intervals.
Based on the above, for increasing stability and safety, the outer end of the fixing rod connected with the rotating sleeve is further provided with a cotter pin.
Based on the above, the width value of the ladder stand is smaller than the length value of the fixed rod.
Based on the above, the distance value between the pair of assembled fixed supports is smaller than the length value of the ladder stand.
The utility model also provides a rear-unloading semitrailer, which is provided with the rear-unloading semitrailer assembly turnover type crawling ladder.
Compared with the prior art, the utility model has substantial characteristics and progress, in particular to the rear-unloading semitrailer assembly turnover type ladder stand and the rear-unloading semitrailer, wherein the ladder stand is assembled on a frame through a pair of assembled fixed supports, the mounting mode is independent of a carriage, and the mounting mode can be turned over when in use, so that the use effect of the ladder stand can be achieved, meanwhile, the ladder stand is mounted on the side surface of the semitrailer frame, the middle structure of the frame is not occupied, and the interference problem with rear-unloading semitrailer indispensable parts such as an oil cylinder and an oil tank in the middle of the frame is avoided.
Therefore, compared with the existing traditional crawling ladder, the mounting dependence of the rear-unloading semitrailer assembly turnover crawling ladder is relatively weak, the crawling ladder can be arranged without depending on a carriage, the problem that the crawling ladder interferes with related parts can be effectively avoided, and the structural layout is more excellent.
Drawings
Fig. 1 is a schematic structural view of a rear dump semitrailer assembled turnover type crawling ladder and a rear dump semitrailer in a storage matching state.
Fig. 2 is a schematic structural view of the rear-dump semitrailer assembled turnover type crawling ladder and the rear-dump semitrailer in a turnover use matching state.
Fig. 3 is a schematic diagram of a rear dump semitrailer assembled turnover type ladder stand structure provided by the utility model.
In the figure, a semitrailer box body 1, a semitrailer frame 2, a transverse support 3, a longitudinal support 4, a fixing rod 5, a lock catch 6, a lock catch 7, a fixing plate 8, a rotary sleeve and a reinforcing plate 9.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
Example 1
The embodiment provides a rear-dump semitrailer assembled turnover type crawling ladder, which comprises a crawling ladder and a pair of assembled fixed supports arranged on one side of a semitrailer frame 2 as shown in figures 1,2 and 3. The pair of assembled fixed supports are arranged along the length direction of the semitrailer frame.
Specifically, as shown in fig. 3, a pair of rotating sleeves 8 is disposed at the bottom end of the ladder stand, and the rotating sleeves 8 are rotatably sleeved on the assembled fixing support located at the inner side. The assembled fixed support positioned on the outer side is provided with a lock catch 6 for holding the top end of the cat ladder.
Wherein, the assembled fixed support comprises a fixed plate 7 connected with the semitrailer frame 2. The fixing plate 7 is provided with a fixing rod 5.
In order to avoid tearing at the bolt hole after installation, a reinforcing plate 9 for obliquely supporting the fixing rod 5 is further arranged between the root of the fixing rod 5 and the lower part of the fixing plate 7.
The outer end of the fixed rod 5 connected to the rotating sleeve 8 is also provided with cotter pins for stability and safety.
Specifically, when the rear-dump semitrailer is used for assembling the turnover type crawling ladder, the lock catch 6 is firstly opened, and then the rear-dump semitrailer is turned upwards to assemble the turnover type crawling ladder, so that the upper end of the turnover type crawling ladder is lapped and leaned against one side of the semitrailer box body 1.
Example 2
The embodiment provides a rear-dump semitrailer assembly turnover type cat ladder, which is mainly different from embodiment 1 in that in the embodiment, the cat ladder comprises a pair of longitudinal supports 4, a plurality of transverse supports 3 are connected between the pair of longitudinal supports 4, and a plurality of transverse supports are distributed at equal intervals. The width value of the cat ladder is smaller than the length value of the fixed rod. The distance value between the pair of assembled fixed supports is smaller than the length value of the cat ladder.
Example 3
The embodiment provides a rear-dump semitrailer, which is provided with the rear-dump semitrailer assembly turnover type crawling ladder in embodiment 1 or embodiment 2.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present utility model may be modified or some technical features may be equivalently replaced, and they are all included in the scope of the technical solution of the present utility model as claimed.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421956886.2U CN222959706U (en) | 2024-08-13 | 2024-08-13 | Rear-unloading semitrailer assembly turnover type crawling ladder and rear-unloading semitrailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421956886.2U CN222959706U (en) | 2024-08-13 | 2024-08-13 | Rear-unloading semitrailer assembly turnover type crawling ladder and rear-unloading semitrailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222959706U true CN222959706U (en) | 2025-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421956886.2U Active CN222959706U (en) | 2024-08-13 | 2024-08-13 | Rear-unloading semitrailer assembly turnover type crawling ladder and rear-unloading semitrailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222959706U (en) |
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2024
- 2024-08-13 CN CN202421956886.2U patent/CN222959706U/en active Active
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