Side guardrail of semitrailer

Abstract

The utility model discloses a semitrailer side guardrail which comprises a first connecting column and a protective frame, the protective frame comprises two sets of cross beams, a plurality of sets of vertical beams are fixedly connected between the two sets of cross beams, sliding grooves are formed in the tops of the cross beams, and the first connecting column is connected into the sliding grooves in a sliding mode. The utility model has the advantages that a driver can twist the screw rod to enable the locking block to be separated from the limiting groove, and then pushes the vertical rod to enable the second connecting column to move inwards, so that the second connecting column can move inwards, and the object placing frame is fixedly connected to the top of the cross beam located at the upper part, and the object placing frame is fixedly connected to one side of the vertical beam, and placing grooves are formed in the two sides of the cross beam. And then sundries such as waterproof cloth are placed in the storage frame, and the arrangement of the storage frame increases a certain storage space while the use of the side guardrail is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of side guardrails, in particular to a side guardrail for a semi-trailer. Background Art

[0002] A semitrailer is a trailer with its axle positioned behind the vehicle's center of gravity (when evenly loaded) and equipped with a coupling device that transmits horizontal and vertical forces to the towing vehicle. Semitrailers are typically three-axled and come in a variety of types, including 11-meter siderail trailers, 13-meter siderail trailers, and low-bed trailers. These heavy-duty vehicles are connected to the semitrailer's front end via a towing pin. Side guardrails not only mitigate the risk of pedestrians being drawn under the vehicle, but also provide a degree of protection for components like the fuel tank and mitigate casualties from collisions with smaller vehicles.

[0003] The side guardrails in the prior art are generally as follows Figure 7 As shown, it is composed of a horizontal rail 81 and a guardrail 82. However, the above technical means have certain defects. Semi-trailers often need to store items such as tarpaulins. This side guardrail is a fixed structure, which is inconvenient to set up a collection box for storing items. Moreover, since it is a fixed structure, such as when the water tank or the bottom of the vehicle body needs to be inspected, it is inconvenient for the staff to carry out their work. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a side guardrail for a semi-trailer.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The top of described sliding panel also is provided with an interlock plate, and the interlock plate is hinged on the base plate, is fixed with a backing pin on the interlock plate, and an end of sliding panel withstands on the backing pin of interlock plate.

[0007] Preferably, the fixing mechanism includes a sleeve fixedly connected to the crossbeam, the first connecting column is slidably connected to the inside of the sleeve, a first through hole is opened on both sides of the sleeve, a second through hole adapted to the first through hole is opened on one side of the first connecting column, bolts are placed inside the first through hole and the second through hole, and a fixing nut is threadedly connected to the outer surface of the bolt.

[0008] Preferably, storage grooves are provided on both sides of the first connecting column, and the interior of the storage groove is slidably connected to a limit block, and the limit block is a ladder-shaped structure. A second spring is fixedly connected to the interior of the storage groove, and one side of the second spring is fixedly connected to the limit block, and the top of the limit block conflicts with the bottom of the beam located below.

[0009] Preferably, a guide groove is provided inside the storage groove, and a guide block is fixedly connected to one side of the limit block, and the guide block is slidably connected to the inside of the guide groove.

[0010] Preferably, one side of the horizontal beam and the vertical beam is provided with a reflective tape.

[0011] The beneficial effects of the present invention are as follows: the driver of the semi-trailer side guardrail provided by the present invention can turn the screw to disengage the locking block from the limiting groove, and then push the vertical rod to move the second connecting column inward, and then place sundries such as tarpaulins inside the storage frame. The establishment of the storage frame does not affect the use of the side guardrail while increasing a certain amount of storage space. If the staff needs to inspect the water tank or the bottom of the vehicle body, they can turn the fixing nut to disengage it from the bolt, and then take out the bolt, and then press the limiting block so that it no longer limits the crossbeam, and then the protective frame can be removed, which is convenient for the staff to carry out their work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the basic structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the protective frame structure of the present utility model;

[0014] Figure 3 For the utility model Figure 2 A magnified view of the structure at center A;

[0015] Figure 4 For the utility model Figure 2 A magnified view of the structure at point B in the middle;

[0016] Figure 5 It is a right sectional view of the crossbeam of the present utility model;

[0017] Figure 6 This is a schematic diagram of the fixing mechanism structure of the utility model;

[0018] Figure 7 This is a schematic diagram of the prior art structure of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] like Figure 1 - Figure 6 As shown, the utility model provides a semi-trailer side guardrail, including a first connecting column 1 and a protective frame, the protective frame includes two groups of cross beams 2, a plurality of vertical beams 3 are fixedly connected between the two groups of cross beams 2, a slide groove 5 is provided on the top of the cross beam 2, the first connecting column 1 is slidably connected to the inside of the slide groove 5, a fixing mechanism 4 is fixedly connected to the top of the cross beam 2 located above, a storage frame 6 is fixedly connected to one side of the vertical beam 3, a placement groove 7 is provided on both sides of the cross beam 2, a second connecting column 8 is slidably connected to the inside of the placement groove 7, and a vertical rod 9 is fixedly connected to one end of the second connecting column 8, a through groove 10 and a limit groove 11 are respectively provided on one side of the cross beam 2 and the second connecting column 8. 2 is fixedly connected to a connecting frame 12, and a first spring 13 is fixedly connected to the interior of the connecting frame 12. A locking block 14 adapted to the through slot 10 and the limiting slot 11 is fixedly connected to one side of the first spring 13. A threaded hole 15 is opened on the connecting frame 12, and a screw 16 is threadedly connected to the interior of the threaded hole 15. One side of the screw 16 is rotatably connected to the locking block 14; the driver can twist the screw 16 to disengage the locking block 14 from the limiting slot 11, and then push the vertical rod 9 to move the second connecting column 8 inward, and then place sundries such as a rain cloth inside the storage frame 6. The establishment of the storage frame 6 does not affect the use of the side guardrail while increasing a certain amount of storage space.

[0022] The fixing mechanism 4 includes a sleeve 41 fixedly connected to the crossbeam 2, the first connecting column 1 is slidably connected to the inside of the sleeve 41, and a first through hole 42 is opened on both sides of the sleeve 41. A second through hole 22 adapted to the first through hole 42 is opened on one side of the first connecting column 1. Bolts 43 are placed inside the first through hole 42 and the second through hole 22. The outer surface of the bolt 43 is threadedly connected to a fixing nut 44. A storage groove 17 is opened on both sides of the first connecting column 1. The internal sliding connection of the storage groove 17 is a limit block 18, and the limit block 18 is a ladder. Type structure, the interior of the storage groove 17 is fixedly connected with a second spring 19, one side of the second spring 19 is fixedly connected to the limit block 18, and the top of the limit block 18 conflicts with the bottom of the beam 2 below; by setting up the limit block 18 to support the beam 2 below, a certain degree of stability is improved. If the staff needs to inspect the water tank or the bottom of the vehicle body, they can twist the fixing nut 44 to disengage it from the bolt 43, then remove the bolt 43, press the limit block 18 so that it no longer limits the beam 2, and then the protective frame can be removed.

[0023] A guide groove 20 is provided inside the storage groove 17, and a guide block 21 is fixedly connected to one side of the limit block 18, and the guide block 21 is slidably connected to the inside of the guide groove 20; the establishment of the guide block 21 and the guide groove 20 can prevent the limit block 18 from detaching from the storage groove 17.

[0024] One side of the horizontal beam 2 and the vertical beam 3 is provided with reflective tape; the establishment of the reflective tape can provide night warning.

[0025] Working principle: The driver can turn the screw 16 to disengage the locking block 14 from the limiting groove 11, and then push the vertical rod 9 to move the second connecting column 8 inward, and then place sundries such as rain cloth inside the storage frame 6. The establishment of the storage frame 6 will not affect the use of the side guardrail while increasing a certain amount of storage space. If the staff needs to inspect the water tank or the bottom of the vehicle body, they can turn the fixing nut 44 to disengage it from the bolt 43, then remove the bolt 43, and then press the limiting block 18 so that it no longer limits the crossbeam 2, and then the protective frame can be removed, making it easier for the staff to carry out their work.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A semi-trailer side guardrail, comprising a first connecting column (1) and a protective frame, characterized in that: The protective frame comprises two groups of cross beams (2), a plurality of vertical beams (3) are fixedly connected between the two groups of cross beams (2), a slide groove (5) is provided on the top of the cross beam (2), the first connecting column (1) is slidably connected to the inside of the slide groove (5), a fixing mechanism (4) is fixedly connected to the top of the cross beam (2) located above, a storage frame (6) is fixedly connected to one side of the vertical beam (3), a placement groove (7) is provided on both sides of the cross beam (2), a second connecting column (8) is slidably connected to the inside of the placement groove (7), and one end of the second connecting column (8) is fixedly connected to the vertical rod (9) ), a through groove (10) and a limiting groove (11) are respectively provided on one side of the crossbeam (2) and the second connecting column (8), a connecting frame (12) is fixedly connected to the crossbeam (2), a first spring (13) is fixedly connected inside the connecting frame (12), a locking block (14) adapted to the through groove (10) and the limiting groove (11) is fixedly connected to one side of the first spring (13), a threaded hole (15) is provided on the connecting frame (12), a screw rod (16) is threadedly connected inside the threaded hole (15), and one side of the screw rod (16) is rotatably connected to the locking block (14).

2. A semi-trailer side guardrail according to claim 1, characterized in that: The fixing mechanism (4) comprises a sleeve (41) fixedly connected to the crossbeam (2), the first connecting column (1) being slidably connected to the interior of the sleeve (41), a first through hole (42) being provided on both sides of the sleeve (41), a second through hole (22) being provided on one side of the first connecting column (1) and matching with the first through hole (42), a bolt (43) being placed inside the first through hole (42) and the second through hole (22), and a fixing nut (44) being threadedly connected to the outer surface of the bolt (43).

3. The semi-trailer side guardrail according to claim 1, characterized in that: Both sides of the first connecting column (1) are provided with a storage groove (17), the interior of the storage groove (17) is slidably connected to a limit block (18), the limit block (18) is a ladder-shaped structure, the interior of the storage groove (17) is fixedly connected to a second spring (19), one side of the second spring (19) is fixedly connected to the limit block (18), and the top of the limit block (18) is in conflict with the bottom of the beam (2) located below.

4. The semi-trailer side guardrail according to claim 3, characterized in that: A guide groove (20) is provided inside the storage groove (17), and a guide block (21) is fixedly connected to one side of the limit block (18), and the guide block (21) is slidably connected to the inside of the guide groove (20).

5. The semi-trailer side guardrail according to claim 1, characterized in that: One side of the horizontal beam (2) and the vertical beam (3) is provided with a reflective sticker.

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