Electric hydraulic supporting leg of semitrailer

Abstract

The utility model provides a semitrailer electric hydraulic supporting leg, which belongs to the technical field of electric hydraulic supporting legs, and comprises a mounting chassis, a rotating ring is arranged at the bottom of the mounting chassis, the output end of the rotating ring is rotatably connected with a connecting disc, the bottom of the connecting disc is fixedly connected with two rotating supports, and the two rotating supports are fixedly connected with the mounting chassis. The output end of the rotating support is rotationally connected with connecting arms, the bottoms of the two connecting arms are fixedly connected with a supporting disc, a hydraulic cylinder is arranged at the bottom of the supporting disc, and the output end of the hydraulic cylinder is fixedly connected with a pressure bearing disc. Through the arrangement of the rotating ring, the rotating support and the connecting arm, the supporting disc can rotate at multiple angles, so that various working planes are met, the overall stability of the device is higher, the early warning mechanism is further arranged, when the hydraulic cylinder extends or retracts, early warning can be conducted on surrounding personnel, and therefore the safety of the device during working is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric hydraulic outriggers, in particular to an electric hydraulic outrigger for a semitrailer. Background Art

[0002] The electric hydraulic outrigger of a semitrailer is an important device on the semitrailer. When the semitrailer is loading and unloading goods on an uneven working surface or in order to ensure the overall stability of the semitrailer, it is necessary to add force points through the hydraulic outrigger, thereby making the semitrailer more stable and reducing the risks of vehicle rollover, tire blowout and damage to the vehicle's buffer system.

[0003] According to the search, the patent document with publication number CN217496089U discloses an electric hydraulic outrigger for a semi-trailer, comprising a connecting beam, the side walls of which are relatively provided with fixed plates, a first support member, the first support member comprising a first electric hydraulic rod and a first extension plate which is arranged on the side wall of the first electric hydraulic rod and is detachably connected to the fixed plates between the two fixed plates, a second support member, the second support member comprising a second electric hydraulic rod and a second extension plate which is arranged on the side wall of the second electric hydraulic rod and is detachably connected to the fixed plates between the two fixed plates, and a pad foot which is respectively arranged at the output ends of the first electric hydraulic rod and the second electric hydraulic rod.

[0004] The existing electric hydraulic outriggers for semi-trailers have the following shortcomings when in use: since the working surface cannot be guaranteed to be flat when the hydraulic outriggers are in use, sleepers are usually required to be added manually for support, and the stability of the sleepers cannot be guaranteed. At the same time, when the hydraulic outriggers are extended, the area around the semi-trailer is very dangerous. The existing device is not equipped with a targeted early warning mechanism, resulting in insufficient safety of the device. Utility Model Content

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An electric hydraulic outrigger for a semitrailer, comprising a mounting chassis, a rotating ring is arranged at the bottom of the mounting chassis, an output end of the rotating ring is rotatably connected to a connecting plate, two rotating supports are fixedly connected to the bottom of the connecting plate, an output end of the rotating support is rotatably connected to a connecting arm, and the bottoms of the two connecting arms are fixedly connected to a supporting plate;

[0007] A hydraulic cylinder is arranged at the bottom of the support plate, an output end of the hydraulic cylinder is fixedly connected to a pressure plate, and an early warning mechanism is arranged at the bottom of the support plate.

[0008] Preferably, the warning mechanism includes a warning shell, a torsion spring and a take-up roller, the two warning shells are fixedly connected to the bottom of the support plate, a torsion spring is arranged in the warning shell, and the output end of the torsion spring is fixedly connected to the take-up roller.

[0009] Preferably, the warning housing is provided with an arc-shaped notch at the position corresponding to the take-up roller.

[0010] Preferably, the take-up roller is coaxially fixedly connected with a sound brush.

[0011] Preferably, a sound drum is provided on the inner wall of the warning housing at a position corresponding to the sound brush, and a fixed port is provided on the pressure plate.

[0012] Preferably, a thin steel wire rope is fixedly connected to the fixed port.

[0013] Preferably, the end of the thin steel wire rope away from the fixed port passes through the arc-shaped notch and is fixedly connected to the take-up roller on the corresponding side.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The utility model can make the support plate rotate at multiple angles by arranging a rotating ring, a rotating support and a connecting arm, thereby satisfying various working planes and making the overall stability of the device higher. An early warning mechanism is also provided, which can warn surrounding personnel when the hydraulic cylinder extends or contracts, thereby improving the safety of the device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an electric hydraulic outrigger for a semi-trailer proposed by the utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of a rotating support portion of an electric hydraulic outrigger for a semitrailer proposed by the utility model;

[0018] Figure 3 The utility model is a three-dimensional internal structure schematic diagram of the warning shell part of the electric hydraulic outrigger of a semitrailer.

[0019] In the figure: 1 mounting chassis, 2 rotating ring, 3 connecting plate, 4 rotating support, 5 connecting arm, 6 hydraulic cylinder, 7 pressure plate, 8 early warning housing, 9 take-up roller, 10 sound brush, 11 sound drum, 12 fixed port, 13 thin steel wire rope, 14 support plate. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Reference Figure 1-Figure 3 , an electric hydraulic outrigger for a semitrailer, comprising.

[0022] An installation chassis 1 is provided with a rotating ring 2 at the bottom of the installation chassis 1, the output end of the rotating ring 2 is rotatably connected to a connecting disk 3, the bottom of the connecting disk 3 is fixedly connected to two rotating supports 4, the output end of the rotating support 4 is rotatably connected to a connecting arm 5, and the bottoms of the two connecting arms 5 are fixedly connected to a supporting disk 14;

[0023] A hydraulic cylinder 6 is provided at the bottom of the support plate 14, and a pressure plate 7 is fixedly connected to the output end of the hydraulic cylinder 6. An early warning mechanism is provided at the bottom of the support plate 14. When the support angle of the pressure plate 7 needs to be adjusted in a targeted manner, it can be adapted by rotating the connecting plate 3 and adjusting the angle of the connecting arm 5, thereby ensuring that the pressure plate 7 is basically attached to the support surface;

[0024] The early warning mechanism includes an early warning housing 8, a torsion spring and a take-up roller 9. The two early warning housings 8 are fixedly connected to the bottom of the support plate 14. A torsion spring is arranged in the early warning housing 8. The output end of the torsion spring is fixedly connected to the take-up roller 9. An arc-shaped notch is opened in the early warning housing 8 corresponding to the position of the take-up roller 9. The take-up roller 9 is coaxially fixedly connected with a sound brush 10. A sound drum 11 is arranged on the inner wall of the early warning housing 8 corresponding to the position of the sound brush 10. A fixed port 12 is arranged on the pressure plate 7. A thin steel wire rope 13 is fixedly connected to the fixed port 12. The thin steel wire rope 13 3 The end away from the fixed port 12 passes through the arc-shaped gap and is fixedly connected to the take-up roller 9 on the corresponding side. When the hydraulic cylinder 6 contracts or extends, the pressure plate 7 moves compared to the device as a whole, and the thin steel wire rope 13 on the fixed port 12 pulls the take-up roller 9 to rotate. When the take-up roller 9 rotates, the sound brush 10 and the sound drum 11 coaxially connected thereto will rotate relative to each other. At this time, the sound drum 11 will sound an alarm to remind the surrounding personnel to leave as soon as possible, thereby ensuring the safety of the device when it is in use.

[0025] The functional principle of the utility model can be explained through the following operation modes:

[0026] When the supporting angle of the pressure plate 7 needs to be adjusted specifically, it can be adapted by rotating the connecting plate 3 and adjusting the angle of the connecting arm 5, so as to ensure that the pressure plate 7 is basically in contact with the supporting surface;

[0027] When the hydraulic cylinder 6 contracts or extends, the pressure plate 7 will move compared to the device as a whole, and the thin steel wire rope 13 on the fixed port 12 will pull the take-up roller 9 to rotate. When the take-up roller 9 rotates, the sound brush 10 and the sound drum 11 coaxially fixed thereto will rotate relative to each other. At this time, the sound drum 11 will emit an alarm sound, thereby reminding the surrounding personnel to leave as soon as possible, thereby ensuring the safety of the device during use.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An electric hydraulic outrigger for a semitrailer, comprising a mounting chassis (1), characterized in that: A rotating ring (2) is provided at the bottom of the mounting chassis (1); the output end of the rotating ring (2) is rotatably connected to a connecting disk (3); the bottom of the connecting disk (3) is fixedly connected to two rotating supports (4); the output end of the rotating supports (4) is rotatably connected to a connecting arm (5); the bottoms of the two connecting arms (5) are fixedly connected to a supporting disk (14); A hydraulic cylinder (6) is provided at the bottom of the support plate (14); an output end of the hydraulic cylinder (6) is fixedly connected to a pressure plate (7); and an early warning mechanism is provided at the bottom of the support plate (14).

2. The electric hydraulic outrigger for a semitrailer according to claim 1, characterized in that: The early warning mechanism comprises an early warning housing (8), a torsion spring and a take-up roller (9); the two early warning housings (8) are fixedly connected to the bottom of a support plate (14); a torsion spring is arranged inside the early warning housing (8); and the output end of the torsion spring is fixedly connected to the take-up roller (9).

3. The semi-trailer electric hydraulic outrigger according to claim 2, characterized in that: The warning housing (8) is provided with an arc-shaped notch at a position corresponding to the take-up roller (9).

4. The semi-trailer electric hydraulic outrigger according to claim 2, characterized in that: The take-up roller (9) is coaxially and fixedly connected with a sound brush (10).

5. The semi-trailer electric hydraulic outrigger according to claim 4, characterized in that: A sound drum (11) is arranged on the inner wall of the warning housing (8) at a position corresponding to the sound brush (10), and a fixed port (12) is arranged on the pressure plate (7).

6. The semi-trailer electric hydraulic outrigger according to claim 5, characterized in that: A thin steel wire rope (13) is fixedly connected to the fixed port (12).

7. The semi-trailer electric hydraulic outrigger according to claim 6, characterized in that: The end of the thin steel wire rope (13) away from the fixed port (12) passes through the arc-shaped notch and is fixedly connected to the take-up roller (9) on the corresponding side.

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