CN221138360U - Semitrailer with rollover prevention structure - Google Patents

Abstract

The utility model relates to the field of semitrailers and discloses a semitrailer with a rollover prevention structure, which comprises a semitrailer base, a carriage, wheel sets and rollover prevention mechanisms, wherein the carriage is fixedly arranged at the top of the semitrailer base, the wheel sets are fixedly arranged at the bottom of the semitrailer base, the rollover prevention mechanisms are arranged at the bottom of the semitrailer base, and the number of the rollover prevention mechanisms is four. The utility model has the following advantages and effects: the four rollover prevention mechanisms are conveniently adjusted out and unfolded to the outer side proper positions of the semi-trailer base, the semi-trailer is turned or loaded and unloaded in the process, the rollover phenomenon of the semi-trailer can be avoided by utilizing the four rollover prevention mechanisms, the stability of the semi-trailer is improved, the four rollover prevention mechanisms are conveniently stored and adjusted back to the lower side of the semi-trailer base to be stored when the semi-trailer is not used, the purpose of hiding the four rollover prevention mechanisms is achieved, and the whole vehicle width of the semi-trailer cannot be increased.

Description

Semitrailer with rollover prevention structure

Technical Field

The utility model relates to the technical field of semi-trailers, in particular to a semi-trailer with a rollover prevention structure.

Background

A semitrailer is a trailer in which the axle is placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and is equipped with hitch devices that can transfer horizontal and vertical forces to the tractor. The semitrailer is generally a three-axle semitrailer, and the types of the semitrailer are classified into eleven-meter bin semitrailer, thirteen-meter bin semitrailer, low-bed semitrailer and the like, and the semitrailer is a heavy transportation vehicle connected with a semitrailer head through a traction pin. Most of the existing semitrailers can cause unbalanced vehicle bodies when being bent or unloaded, so that the situation that the truck tilts to turn on one's side cannot be guaranteed.

The utility model provides a semitrailer with prevent structure of turning on one's side to the chinese patent bulletin of above-mentioned problem bulletin number CN217496093U, when bending or unloading is being crossed to most semitrailers, can lead to the automobile body unbalance to make the freight train slope take place the condition of turning on one's side, can't guarantee the problem of driver's safety, it includes the semitrailer base now proposes following scheme, semitrailer base bottom fixed mounting has the wheelset, just semitrailer base top fixed mounting has the carriage, two mounting grooves that the structure is the same have been seted up in the semitrailer base, just the mounting groove runs through semitrailer base setting, semitrailer base one side fixed mounting has control motor, just two rack boards that are diagonal distribution are installed to mounting groove top lateral wall slidable, the rack board top is equipped with the slider. The application has novel structure, can support the two sides of the semi-trailer, and can effectively avoid the side turning of the semi-trailer when the semi-trailer is over-bent or unloaded, thereby ensuring the safety of a driver.

The conventional scheme can meet the basic requirement of rollover prevention of the semitrailer in actual use, but the conventional scheme still has at least the following defects in actual use: the fixed block, the telescopic rod, the fixed plate, the auxiliary wheel and the reset spring in the scheme can be stored at the side edge of the base of the semitrailer only during the period of non-use, and can not be hidden, stored and further the whole vehicle width of the semitrailer is increased, so that the semitrailer with the rollover prevention structure is provided for solving the problems.

Disclosure of utility model

The utility model aims to provide a semitrailer with a rollover prevention structure, which is convenient for the four rollover prevention mechanisms to be unfolded to the proper position on the outer side of a semitrailer base, and can avoid rollover phenomenon of the semitrailer and improve the stability of the semitrailer by utilizing the four rollover prevention mechanisms in the turning or loading and unloading process.

The technical aim of the utility model is realized by the following technical scheme: a semi-trailer with a rollover prevention structure comprises a semi-trailer base, a carriage, a wheel set and a rollover prevention mechanism, wherein the carriage is fixedly arranged on the top of the semi-trailer base

And the wheel group is fixedly arranged at the bottom of the semi-trailer base, and the rollover prevention mechanism is arranged at the bottom of the semi-trailer base.

The utility model is further provided with: the number of the rollover prevention mechanisms is four, the four rollover prevention mechanisms are symmetrically distributed in pairs, and the wheel sets are positioned between the four rollover prevention mechanisms.

The utility model is further provided with: the anti-rollover mechanism comprises an electric guide rail, an electric sliding seat, a cross beam, a U-shaped seat, a connecting seat, a first hydraulic cylinder, a mounting plate, a reset spring and an auxiliary roller, wherein the electric guide rail is fixedly mounted at the bottom of a semi-trailer base, the electric sliding seat is slidably mounted on the electric guide rail, the cross beam is fixedly mounted at the bottom of the electric sliding seat, the U-shaped seat is fixedly mounted at the bottom of the cross beam, the connecting seat is rotatably mounted in the U-shaped seat through a pin shaft, the first hydraulic cylinder is fixedly mounted at the bottom of the connecting seat, the mounting plate is fixedly mounted at the output shaft end of the first hydraulic cylinder, the reset spring is fixedly mounted at the bottom of the mounting plate, and the auxiliary roller is rotatably mounted at the bottom of the reset spring through a wheel carrier.

The utility model is further provided with: the rollover prevention mechanism further comprises a fixing seat, a second hydraulic cylinder and a hinging seat, wherein the fixing seat is fixedly arranged at the bottom of the cross beam, the second hydraulic cylinder is rotatably arranged on the fixing seat through a pin shaft, the second hydraulic cylinder is obliquely arranged, the hinging seat is fixedly arranged on the outer side wall of the first hydraulic cylinder, and the output shaft end of the second hydraulic cylinder is rotatably connected with the hinging seat through the pin shaft.

The utility model is further provided with: the bottom fixed mounting of crossbeam has L type pin, and L type pin is located the one side that the articulated seat was kept away from to the U type seat, and the one end that the crossbeam was kept away from to L type pin contacts with the lateral wall of first pneumatic cylinder.

The utility model is further provided with: a guide groove is formed in one side of the cross beam, a guide plate is mounted in the guide groove in a sliding mode, one side of the guide plate extends out of the guide groove and is fixedly provided with a vertical plate, and the top of the vertical plate is fixedly connected with the bottom of the semi-trailer base.

The beneficial effects of the utility model are as follows:

1. According to the utility model, the rollover prevention mechanism consisting of the electric guide rail, the electric sliding seat, the cross beam, the U-shaped seat, the connecting seat, the first hydraulic cylinder, the mounting plate, the reset spring, the auxiliary roller, the fixing seat, the second hydraulic cylinder and the hinging seat is utilized, so that the rollover prevention mechanism is conveniently adjusted out and unfolded to a proper position on the outer side of the semi-trailer base, the rollover prevention mechanism is utilized to prevent the semi-trailer from rollover in the turning or loading and unloading process of the semi-trailer, the stability of the semi-trailer is improved, and the rollover prevention mechanism is conveniently stored and returned to the lower side of the semi-trailer base to be stored when the semi-trailer is not used, the purpose of hiding the rollover prevention mechanism is realized, and the whole vehicle width of the semi-trailer is not increased.

2. According to the utility model, the four rollover prevention mechanisms are arranged to be used together, so that the stability of auxiliary support of the semi-trailer can be improved, the rollover prevention effect of the semi-trailer is improved during turning or loading and unloading of the semi-trailer, and the stability of the semi-trailer is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a first view angle of the present embodiment.

Fig. 2 is a schematic perspective view of a second view angle of the present embodiment.

Fig. 3 is a schematic view of the front sectional structure of the present embodiment.

FIG. 4 is a schematic cross-sectional front view of the rollover prevention mechanism.

Fig. 5 is a schematic front view of the side-turning prevention mechanism in a housed state.

In the figure, 1, a semitrailer base; 2. a carriage; 3. a wheel set; 4. a rollover prevention mechanism; 41. an electric guide rail; 42. an electric slide; 43. a cross beam; 44. a U-shaped seat; 45. a connecting seat; 46. a first hydraulic cylinder; 47. a mounting plate; 48. a return spring; 49. an auxiliary roller; 410. a fixing seat; 411. a second hydraulic cylinder; 412. a hinge base; 413. an L-shaped stop lever; 414. a guide groove; 415. a riser; 416. and a guide plate.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Referring to fig. 1, 2, 3, 4 and 5, the utility model provides a semi-trailer with a rollover prevention structure, which comprises a semi-trailer base 1, a carriage 2, wheel groups 3 and rollover prevention mechanisms 4, wherein the carriage 2 is fixedly arranged at the top of the semi-trailer base 1, the carriage 2 is used for containing goods, the wheel groups 3 are fixedly arranged at the bottom of the semi-trailer base 1, the rollover prevention mechanisms 4 are arranged at the bottom of the semi-trailer base 1, the number of the rollover prevention mechanisms 4 is four, the four rollover prevention mechanisms 4 are symmetrically distributed in pairs, the wheel groups 3 are arranged among the four rollover prevention mechanisms 4, the four rollover prevention mechanisms 4 are utilized to assist in supporting the semi-trailer, rollover of the semi-trailer can be avoided during turning or loading and unloading, and the stability of the semi-trailer is improved, the rollover prevention mechanism 4 comprises an electric guide rail 41, an electric sliding seat 42, a cross beam 43, a U-shaped seat 44, a connecting seat 45, a first hydraulic cylinder 46, a mounting plate 47, a return spring 48, an auxiliary roller 49, a fixed seat 410, a second hydraulic cylinder 411 and a hinging seat 412, wherein the electric guide rail 41 is fixedly arranged at the bottom of the semi-trailer base 1, the electric sliding seat 42 is slidably arranged on the electric guide rail 41, the cross beam 43 is fixedly arranged at the bottom of the electric sliding seat 42, the U-shaped seat 44 is fixedly arranged at the bottom of the cross beam 43, the connecting seat 45 is rotatably arranged in the U-shaped seat 44 through a pin shaft, the first hydraulic cylinder 46 is fixedly arranged at the bottom of the connecting seat 45, the mounting plate 47 is fixedly arranged at the output shaft end of the first hydraulic cylinder 46, the return spring 48 is fixedly arranged at the bottom of the mounting plate 47, the auxiliary roller 49 is rotatably arranged at the bottom of the return spring 48 through a wheel frame, and the cross beam 43, the U-shaped seat 44, the connecting seat 45 are controlled by utilizing horizontal linear sliding of the electric sliding seat 42 on the electric guide rail 41, the first pneumatic cylinder 46, the mounting panel 47, reset spring 48 and auxiliary roller 49 horizontal migration, utilize the scalable characteristic of first pneumatic cylinder 46, can adjust auxiliary roller 49's high position, auxiliary roller 49 can be contacted with ground all the time when the semitrailer crosses the bend by utilizing reset spring 48's elasticity effect, auxiliary roller 49 can assist the semitrailer to turn and remove, effectively prevent that the semitrailer from taking place to turn on one's side phenomenon, fixing base 410 fixed mounting is in the bottom of crossbeam 43, second pneumatic cylinder 411 is installed on fixing base 410 through the round pin axle rotation, second pneumatic cylinder 411 is the slope setting, articulated seat 412 fixed mounting is on the lateral wall of first pneumatic cylinder 46, the output axle head of second pneumatic cylinder 411 is connected through round pin axle and articulated seat 412 rotation, utilize the scalable characteristic of second pneumatic cylinder 411, can adjust the inclination of first pneumatic cylinder 46, and then conveniently prevent to turn on one's side mechanism 4 to expand and use or accomodate to the below of semitrailer 1.

In this embodiment, an L-shaped stop lever 413 is fixedly mounted at the bottom of the beam 43, the L-shaped stop lever 413 is located at one side of the U-shaped seat 44 away from the hinge seat 412, one end of the L-shaped stop lever 413 away from the beam 43 contacts with the outer side wall of the first hydraulic cylinder 46, and the inclined stroke of the first hydraulic cylinder 46 can be blocked and limited by using the L-shaped stop lever 413, i.e. the first hydraulic cylinder 46 can be adjusted to a vertical state.

In this embodiment, a guiding groove 414 is formed in one side of the cross beam 43, a guiding plate 416 is slidably mounted in the guiding groove 414, a vertical plate 415 is fixedly mounted on one side of the guiding plate 416 extending out of the guiding groove 414, the top of the vertical plate 415 is fixedly connected with the bottom of the semitrailer base 1, and the sliding connection of the guiding plate 416 and the guiding groove 414 is utilized to guide the movement direction of the cross beam 43, so that the cross beam 43 can stably move in the horizontal direction.

In this embodiment, it should be noted that the electric rail 41, the electric slide carriage 42, the first hydraulic cylinder 46 and the second hydraulic cylinder 411 may be purchased in the market, the electric rail 41, the electric slide carriage 42, the first hydraulic cylinder 46 and the second hydraulic cylinder 411 are provided with power sources, and the electric rail 41, the electric slide carriage 42, the first hydraulic cylinder 46 and the second hydraulic cylinder 411 may be powered by the vehicle-mounted power source on the semitrailer, and the connection mode thereof is fully disclosed in the art, so that the description is not repeated.

Through the structure, the semitrailer with the rollover prevention structure is convenient for the four rollover prevention mechanisms 4 to be adjusted out and unfolded to the proper position on the outer side of the semitrailer base 1, the rollover phenomenon of the semitrailer can be avoided by utilizing the four rollover prevention mechanisms 4 in the turning or loading and unloading process of the semitrailer, the stability of the semitrailer is improved, the four rollover prevention mechanisms 4 are convenient to be stored and adjusted back to the lower side of the semitrailer base 1 for storage when not in use, the purpose of hiding the four rollover prevention mechanisms 4 is realized, the whole vehicle width of the semitrailer is not increased, during specific operation, the semitrailer is firstly controlled to slide on one electric sliding seat 42 in the direction away from a vertical plate 415 on an electric guide rail 41 during turning or loading and unloading, the electric slide seat 42 drives the cross beam 43, the U-shaped seat 44, the connecting seat 45, the first hydraulic cylinder 46, the mounting plate 47, the return spring 48, the auxiliary roller 49, the fixed seat 410, the second hydraulic cylinder 411 and the hinging seat 412 to move horizontally to the outer side of the semi-trailer seat 1, when the auxiliary roller 49 moves to a proper position on the outer side of the semi-trailer seat 1, the electric slide seat 42 is stopped to slide, then the second hydraulic cylinder 411 is controlled to extend, the connecting seat 45, the first hydraulic cylinder 46, the mounting plate 47, the return spring 48 and the auxiliary roller 49 are controlled to incline gradually to the vertical direction, when the first hydraulic cylinder 46 is abutted against one end of the L-shaped stop lever 413, the second hydraulic cylinder 411 is stopped to extend, at this time, the connecting seat 45, the first hydraulic cylinder 46, the mounting plate 47, the return spring 48 and the auxiliary roller 49 are adjusted to be vertically downward, then the first hydraulic cylinder 46 is controlled to extend, the auxiliary roller 49 is adjusted to be in contact with the ground, according to the operation steps described above, the other three rollover prevention mechanisms 4 can be lifted out and unfolded to the outer side proper position of the semi-trailer base 1, after all four rollover prevention mechanisms 4 are lifted out and unfolded, the semi-trailer can be supported in an auxiliary mode, stability of the semi-trailer in turning or loading and unloading is improved, rollover phenomenon of the semi-trailer on the effective surface can be effectively achieved, when the four rollover prevention mechanisms 4 are not needed, the auxiliary rollers 49 can be controlled to ascend to the original position through controlling one of the first hydraulic cylinders 46 to retract and reset, then the second hydraulic cylinders 411 to retract and reset, the connecting seat 45, the first hydraulic cylinders 46, the mounting plate 47, the reset spring 48 and the auxiliary rollers 49 can be controlled to gradually incline towards the direction close to the fixed seat 410, then the electric sliding seat 42 is controlled to slide horizontally on the electric guide rail 41 towards the direction close to the vertical plate 415, the cross beam 43, the U-shaped seat 44, the connecting seat 45, the first hydraulic cylinders 46, the mounting plate 47, the reset spring 48, the auxiliary rollers 49, the fixed seat 410, the second hydraulic cylinders 411 and the hinge seat 412 are stored back to the lower side of the semi-trailer base 1, and the three rollover prevention mechanisms 4 can be stored according to the operation steps, and the purposes of hiding the four rollover prevention mechanisms can be achieved.

The semitrailer with the rollover prevention structure provided by the utility model is described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (3)

1. The utility model provides a semitrailer with prevent structure of turning on one's side, its characterized in that includes semitrailer base (1), carriage (2), wheel group (3) and prevents mechanism of turning on one's side (4), carriage (2) fixed mounting is in the top of semitrailer base (1), wheel group (3) fixed mounting is in the bottom of semitrailer base (1), prevent mechanism of turning on one's side (4) set up the bottom of semitrailer base (1), prevent the quantity of mechanism of turning on one's side (4) is four, four prevent mechanism of turning on one's side (4) are in two-to-two symmetric distribution, wheel group (3) are located four prevent between mechanism of turning on one's side (4), prevent mechanism of turning on one's side (4) include electric rail (41), electric slide (42), crossbeam (43), U seat (44), connecting seat (45), first pneumatic cylinder (46), mounting plate (47), reset spring (48) and auxiliary roller (49), electric rail (41) fixed mounting is in the bottom of semitrailer base (1), electric rail (42) sliding on the bottom of the electric rail (41) is installed on the bottom of the crossbeam (43), the utility model provides a novel electric power steering device, including U type seat (44), connecting seat (45) are installed through the round pin axle rotation in U type seat (44), first pneumatic cylinder (46) fixed mounting is in the bottom of connecting seat (45), mounting panel (47) fixed mounting is in the output axle head of first pneumatic cylinder (46), return spring (48) fixed mounting is in the bottom of mounting panel (47), supplementary gyro wheel (49) are installed through the wheel carrier rotation return spring (48)'s bottom, prevent turning on one's side mechanism (4) still include fixing base (410), second pneumatic cylinder (411) and articulated seat (412), fixing base (410) fixed mounting is in the bottom of crossbeam (43), second pneumatic cylinder (411) are installed through the round pin axle rotation fixing base (410), second pneumatic cylinder (411) are the slope setting, articulated seat (412) fixed mounting is in on the lateral wall of first pneumatic cylinder (46), the output axle head (411) through the round pin axle with articulated seat (412) rotate and be connected.

2. The semitrailer with the rollover prevention structure according to claim 1, wherein: the bottom fixed mounting of crossbeam (43) has L type pin (413), L type pin (413) are located U type seat (44) are kept away from one side of articulated seat (412), one end that crossbeam (43) were kept away from to L type pin (413) with the lateral wall contact of first pneumatic cylinder (46).

3. A semitrailer with rollover prevention structure as defined in claim 2, wherein: guide grooves (414) are formed in one side of the cross beam (43), guide plates (416) are mounted in the guide grooves (414) in a sliding mode, one side of each guide plate (416) extends out of each guide groove (414) and is fixedly provided with a vertical plate (415), and the tops of the vertical plates (415) are fixedly connected with the bottoms of the semitrailer bases (1).