Trailer longitudinal beam and trailer

Abstract

The utility model discloses a trailer longitudinal beam and a trailer, the trailer longitudinal beam comprises a trailer longitudinal beam body, the trailer longitudinal beam body comprises a beam body, the top of the beam body is fixedly provided with a plurality of cleaning beam type buffer damping mechanisms at equal intervals; the beam cleaning type buffering damping mechanism comprises a box-shaped bottom plate fixedly installed on the top of the beam body, an opening is formed in the top of the box-shaped bottom plate, and a hollow supporting plate is arranged above the box-shaped bottom plate. By arranging a series of structures, a flat plate installed on the upper portion or carried cargo equipment can be subjected to vertical buffering damping force unloading treatment during jolting and vibration during driving, the risk that the cargo equipment on the upper portion is damaged by hard shock impact is reduced, and the risk that the connecting portion of the cargo equipment and the flat plate or a compartment is damaged by hard shock impact is reduced; the carrying safety is improved, impurities on the top of the beam body can be integrally and automatically blown away during transportation jolting and vibration, the phenomenon that dust and impurities are prone to being accumulated on the top of the beam body is fundamentally relieved, and the cleaning burden of a driver is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of trailers, in particular to a trailer longitudinal beam and a trailer. Background Technique

[0002] A trailer refers to a vehicle that is towed by an automobile and has no power drive device itself. The longitudinal beam is a key component of the vehicle frame, and the longitudinal beam plays an important load-bearing role on the trailer; since the goods carried by the trailer are heavy, the trailer longitudinal beam bears a large weight during use. During the driving process of the trailer, when the road surface is pitted, resulting in the trailer bumping, the following problems will occur:

[0003] 1. During bumping, there is a certain hard shock impact force between the trailer and the flat plate or the carriage and the upper cargo-carrying equipment above, so that the risk of damage to the upper cargo-carrying equipment due to hard shock impact is relatively large; 2. The existing trailer flat plate is directly installed and fixed to the longitudinal beam by using a cushion seat and bolts, and it is easy to accumulate dust and impurities on the top of the longitudinal beam, which is difficult to clean; In view of this, it is necessary to provide a trailer longitudinal beam and a trailer to solve the above technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a trailer longitudinal beam and a trailer to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A trailer longitudinal beam, including a trailer longitudinal beam body, the trailer longitudinal beam body includes a beam body, and a plurality of beam cleaning type buffer damping mechanisms are fixedly installed at equal intervals on the top of the beam body;

[0006] The beam cleaning type buffer damping mechanism includes a box-shaped bottom plate fixedly installed on the top of the beam body, the top of the box-shaped bottom plate is open, a hollow support plate is arranged above the box-shaped bottom plate, and a telescopic dust-proof rubber sleeve is fixedly connected between the bottom of the hollow support plate and the top of the corresponding box-shaped bottom plate. A buffer damping component is fixedly connected between the bottom inner wall of the box-shaped bottom plate and the bottom of the corresponding hollow support plate. The plurality of buffer damping components are used for vertically buffering and damping the unloading process of the flat plate after being installed and fixed to the flat plate of the trailer and when being subjected to bumpy vibration, so as to reduce the hard shock impact force transmitted to the upper cargo-carrying equipment;

[0007] An extrusion self-air supply component fixedly installed and communicated with the bottom of the corresponding hollow support plate is fixedly installed on the bottom inner wall of the box-shaped bottom plate. Inclined blowing holes are opened on both sides of the bottom of the hollow support plate. Two ventilation filters are fixedly embedded on the rear inner wall of the box-shaped bottom plate. The extrusion self-air supply component is used to supply air to the inside of the hollow support plate when the hollow support plate reciprocates up and down under bumpy impact, and the air is blown out through the corresponding blowing holes to blow and clean the beam body to remove impurities.

[0008] Preferably, the buffer damping assembly includes four outer tubes fixedly connected to the inner wall of the bottom of the corresponding box-shaped bottom plate in a rectangular shape. An inner rod is slidably sleeved in the outer tube. The top end of the inner rod is fixedly connected to the bottom of the corresponding hollow support plate. Four buffer springs are fixedly connected in a rectangular shape between the bottom of the hollow support plate and the inner wall of the bottom of the corresponding box-shaped bottom plate. The buffer springs are movably sleeved on the corresponding outer tubes and inner rods. A rectangular damping rubber block is adhesively fixed between the inner wall of the bottom of the box-shaped bottom plate and the bottom of the corresponding hollow support plate. The rectangular damping rubber block is located between the corresponding four outer tubes.

[0009] Preferably, the extrusion self-air supply assembly includes a fixed sleeve fixedly connected to the inner wall of the bottom of the corresponding box-shaped bottom plate in a rectangular shape. A one-way air inlet valve is fixedly connected to the bottom of the right side of the fixed sleeve. A piston is hermetically slidably sleeved in the fixed sleeve. A ventilation pipe communicating with the inside of the corresponding fixed sleeve is fixedly installed at the top of the piston. A same one-way valve is fixedly connected between the top end of the ventilation pipe and the inner wall of the bottom of the corresponding hollow support plate.

[0010] Preferably, two air inlet holes are formed in the inner wall of the rear side of the box-shaped bottom plate. The inner wall of the air inlet hole is fixedly connected to the outer side of the corresponding ventilation filter screen.

[0011] Preferably, two bolt sleeves are fixedly connected to both the bottom sides of the box-shaped bottom plate and the top sides of both sides of the hollow support plate.

[0012] Preferably, the left side of the one-way air inlet valve is the outlet, and the top of the one-way valve is the outlet.

[0013] Preferably, a limiting hole is formed in the inner wall of the right side of the outer tube. A limiting block slidably connected to the corresponding limiting hole is fixedly connected to the bottom of the right side of the inner rod.

[0014] Based on the above trailer longitudinal beam, the present invention further provides a trailer, which has two trailer longitudinal beam bodies arranged longitudinally and parallelly.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. For the trailer longitudinal beam and the trailer of the present invention, through the cooperation of the box-shaped bottom plate, the hollow support plate and the buffer damping assembly, when a flat plate or a carriage is installed on the upper part and carrying cargo equipment, vertical buffer damping and force unloading treatment can be carried out on the upper part during driving bumps and vibrations, reducing the hard shock impact force transmitted to the upper cargo equipment, thereby reducing the risk of damage to the upper cargo equipment caused by hard shock impact, and reducing the risk of damage to the connection part with the flat plate or the carriage caused by hard shock impact, and improving the carrying safety.

[0017] 2. This trailer longitudinal beam and trailer, through the cooperation of the hollow support plate, box-shaped bottom plate, extrusion self-supplying air component, blowing and cleaning hole, and ventilation filter screen, can automatically blow and remove impurities on the top of the beam body integrally during transportation bumps and vibrations, fundamentally alleviating the phenomenon that dust and impurities are easily accumulated on the top of the beam body, and reducing the cleaning burden of the driver.

[0018] Through a series of structures set in the present utility model, during driving bumps and vibrations, vertical buffer damping unloading treatment can be performed on the flat plate installed on the upper part or the transported cargo equipment, reducing the risk of damage to the upper cargo equipment due to hard shock impacts, and reducing the risk of damage to the connection part with the flat plate or carriage due to hard shock impacts, improving the transportation safety, facilitating automatic blowing and impurity removal on the top of the beam body integrally during transportation bumps and vibrations, fundamentally alleviating the phenomenon that dust and impurities are easily accumulated on the top of the beam body, and reducing the cleaning burden of the driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a trailer longitudinal beam proposed by the present utility model;

[0020] Figure 2 is Figure 1 the enlarged cross-sectional structural diagram of part A in

[0021] Figure 3 is Figure 2 the enlarged structural diagram of part B in

[0022] In the figure: 1. Beam body; 2. Box-shaped bottom plate; 3. Telescopic dust-proof rubber sleeve; 4. Hollow support plate; 5. Outer tube; 6. Inner rod; 7. Buffer spring; 8. Return-shaped damping rubber block; 9. Blowing and cleaning hole; 10. Fixed sleeve; 11. One-way air inlet valve; 12. Piston; 13. Vent pipe; 14. One-way valve; 15. Ventilation filter screen; 16. Bolt through sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figures 1 to 3 shown, a trailer longitudinal beam proposed in this embodiment includes a trailer longitudinal beam body, and the trailer longitudinal beam body includes a beam body 1. A plurality of beam cleaning type buffer damping mechanisms are fixedly installed at equal intervals on the top of the beam body 1;

[0025] The clear beam type buffer damping mechanism includes a box-shaped bottom plate 2 fixedly installed on the top of the beam body 1. The top of the box-shaped bottom plate 2 is open. Above the box-shaped bottom plate 2, there is a hollow support plate 4. A telescopic dust-proof rubber sleeve 3 is fixedly connected between the bottom of the hollow support plate 4 and the top of the corresponding box-shaped bottom plate 2. A buffer damping component is fixedly connected between the bottom inner wall of the box-shaped bottom plate 2 and the bottom of the corresponding hollow support plate 4. Two bolt sleeves 16 are fixedly connected to both the bottom sides of the box-shaped bottom plate 2 and the top sides of the hollow support plate 4. The provided telescopic dust-proof rubber sleeve 3 is used to shield the inside of the corresponding box-shaped bottom plate 2 to prevent impurities from entering. The provided bolt sleeves 16 are used for personnel to install and fix the box-shaped bottom plate 2 and the hollow support plate 4 through external bolts. Multiple buffer damping components are used to perform vertical buffer damping and force unloading treatment on the flat plate when multiple hollow support plates 4 are installed and fixed to the flat plate of the trailer and are subjected to bumps and vibrations, reducing the hard shock impact transmitted to the upper cargo-carrying equipment;

[0026] An extrusion self-air supply component fixedly connected and communicating with the bottom of the corresponding hollow support plate 4 is fixedly installed on the bottom inner wall of the box-shaped bottom plate 2. Obliquely arranged blowing and cleaning holes 9 are opened on both sides of the bottom of the hollow support plate 4. Two ventilation filter meshes 15 are fixedly embedded on the rear inner wall of the box-shaped bottom plate 2. Two air inlet holes are opened on the rear inner wall of the box-shaped bottom plate 2. The inner wall of the air inlet hole is fixedly connected to the outer side of the corresponding ventilation filter mesh 15. The provided ventilation filter meshes 15 are used to allow external gas to enter the inside of the box-shaped bottom plate 2. The extrusion self-air supply component is used to supply air to the inside of the hollow support plate 4 when the hollow support plate 4 reciprocates up and down under bumps and impacts, and the gas is blown out through the corresponding blowing and cleaning holes 9 to blow and clean the beam body 1 to remove impurities.

[0027] Specifically, the buffer damping assembly includes four outer tubes 5 fixedly connected to the inner wall of the bottom of the corresponding box-shaped bottom plate 2 in a rectangular shape. An inner rod 6 is slidably sleeved in the outer tube 5. A limiting hole is provided on the right inner wall of the outer tube 5, and a limiting block fixedly connected to the bottom of the right side of the inner rod 6 and slidably connected to the corresponding limiting hole is provided, which has the effect of limiting and preventing the inner rod 6 from falling off. The top of the inner rod 6 is fixedly connected to the bottom of the corresponding hollow support plate 4. Four buffer springs 7 are fixedly connected in a rectangular shape between the bottom of the hollow support plate 4 and the inner wall of the bottom of the corresponding box-shaped bottom plate 2. The buffer springs 7 are movably sleeved on the corresponding outer tubes 5 and inner rods 6. A rectangular damping rubber block 8 is adhesively fixed between the inner wall of the bottom of the box-shaped bottom plate 2 and the bottom of the corresponding hollow support plate 4. The rectangular damping rubber block 8 is located between the corresponding four outer tubes 5. The outer tubes 5, inner rods 6, buffer springs 7 and rectangular damping rubber blocks 8 are arranged in cooperation. When the hollow support plate 4 moves up and down under the vibration of the upper object during driving bumps, the hollow support plate 4 drives the corresponding inner rod 6 to slide vertically in the outer tube 5, and reciprocally compresses and releases the buffer springs 7 and the rectangular damping rubber blocks 8. During this process, the elastic forces of the buffer springs 7 and the rectangular damping rubber blocks 8 are used to buffer and damp the force on the hollow support plate 4, so as to realize the vertical buffer and damping force unloading treatment of the upper-mounted flat plate and the transported goods and equipment, and reduce the hard shock impact force transmitted to the upper transported goods and equipment.

[0028] Further, the extrusion self-supplying air assembly includes a fixed sleeve 10 fixedly connected to the inner wall of the bottom of the corresponding box-shaped bottom plate 2 in a rectangular shape. A one-way intake valve 11 is fixedly connected and communicated at the bottom right of the fixed sleeve 10. A piston 12 is hermetically and slidably sleeved in the fixed sleeve 10. A sealing ring is adhesively sleeved on the outer side of the piston 12, and the outer side of the sealing ring is slidably fitted with the inner side of the corresponding fixed sleeve 10, achieving the effect of sliding seal between the inner side of the fixed sleeve 10 and the outer side of the corresponding piston 12. A ventilation pipe 13 communicating with the inside of the corresponding fixed sleeve 10 is fixedly installed at the top of the piston 12. An installation hole fixedly connected to the outer side of the corresponding ventilation pipe 13 is opened at the top of the piston 12. A single one-way valve 14 is fixedly connected and communicated between the top end of the ventilation pipe 13 and the inner wall of the bottom of the corresponding hollow support plate 4. The left side of the one-way intake valve 11 is the outlet, and the top of the one-way valve 14 is the outlet, achieving the effect of one-way ventilation. The fixed sleeve 10, the one-way intake valve 11, the piston 12, the ventilation pipe 13, and the one-way valve 14 are cooperated. When the hollow support plate 4 moves up and down, the piston 12 will be driven to reciprocate up and down in the fixed sleeve 10 successively through the corresponding one-way valve 14 and the ventilation pipe 13. When the piston 12 moves downward, the gas in the corresponding fixed sleeve 10 is extruded. Under the extrusion force, the gas is successively supplied into the hollow support plate 4 through the corresponding ventilation pipe 13 and the one-way valve 14. When the piston 12 moves upward, a suction force is generated in the fixed sleeve 10. The suction force sucks and supplements the external gas into the fixed sleeve 10 successively through the corresponding one-way intake valve 11 and the ventilation filter screen 15. Under the action of the reciprocating up and down movement of the piston 12, the air can be continuously supplied into the hollow support plate 4 and the external gas can be sucked and supplemented.

[0029] Based on the above trailer longitudinal beam, this embodiment further provides a trailer, which has two trailer longitudinal beam bodies arranged longitudinally and parallelly; in addition, the trailer further includes a cross beam (not shown) fixedly installed between the two trailer longitudinal beam bodies. The number of cross beams is set according to the length of the trailer as required by the personnel.

[0030] The usage method of this embodiment is as follows: After multiple hollow support plates 4 are fixedly installed with the flat plate or carriage of the trailer itself, and when transporting cargo equipment, during the transportation process, when there is bumpy vibration, the up and down vibration of the flat plate or carriage will drive the up and down displacement of the hollow support plate 4. The hollow support plate 4 compresses and retracts the corresponding telescopic dust-proof rubber sleeve 3. The hollow support plate 4 drives the corresponding four inner rods 6 to slide vertically in the four outer tubes 5, and reciprocally compresses and releases the four buffer springs 7 and the loop damping rubber blocks 8. During this process, the buffer springs 7 and the loop damping rubber blocks 8 are used to achieve buffering and damping unloading of the hollow support plate 4, thereby achieving the effect of vertical buffering and damping unloading treatment of the upper-mounted flat plate and the transported cargo and equipment, reducing the hard shock impact force transmitted to the upper transported cargo equipment, thereby reducing the risk of hard shock damage to the upper cargo equipment, and reducing the risk of hard shock damage to the connection part with the flat plate or carriage.

[0031] When moving up and down under the hollow support plate 4, it will sequentially drive four pistons 12 to reciprocate up and down in four fixed sleeves 10 through four corresponding one-way valves 14 and four ventilation pipes 13. When the piston 12 moves downward, the gas in the corresponding fixed sleeve 10 is squeezed. Under the squeezing force, the gas is sequentially supplied into the hollow support plate 4 through the corresponding ventilation pipes 13 and one-way valves 14. When the piston 12 moves upward, a suction force is generated in the fixed sleeve 10. The suction force sequentially sucks in external gas into the fixed sleeve 10 through the corresponding one-way intake valves 11 and ventilation filters 15. Under the action of the reciprocating up and down movement of the piston 12, it can continuously supply gas into the hollow support plate 4 and suck in and supplement external gas. The gas supplied into the hollow support plate 4 is blown out obliquely downward through two corresponding blowing and cleaning holes 9 to blow and clean the top of the beam body 1, facilitating automatic blowing and cleaning of the top of the beam body 1 during transportation bumps and vibrations, fundamentally alleviating the phenomenon that dust and impurities are easily accumulated on the top of the beam body 1, and reducing the cleaning burden of the driver.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A trailer longitudinal beam, comprising a trailer longitudinal beam body, wherein the trailer longitudinal beam body comprises a beam body (1), characterized in that: A plurality of clearing beam type buffering and damping mechanisms are fixedly installed at equal intervals on the top of the beam body (1); The beam-clearing type buffering and damping mechanism comprises a box-shaped bottom plate (2) fixedly mounted on the top of the beam body (1); the top of the box-shaped bottom plate (2) is arranged to be open; a hollow supporting plate (4) is arranged above the box-shaped bottom plate (2); a telescopic dust-proof rubber sleeve (3) is fixedly connected between the bottom of the hollow supporting plate (4) and the top of the corresponding box-shaped bottom plate (2); and a buffering and damping component is fixedly connected between the bottom inner wall of the box-shaped bottom plate (2) and the bottom of the corresponding hollow supporting plate (4); An extruded self-supply air assembly connected and fixed to the bottom of the corresponding hollow support plate (4) is fixedly mounted on the bottom inner wall of the box-shaped bottom plate (2), and obliquely arranged blowing holes (9) are provided on both sides of the bottom of the hollow support plate (4). Two ventilation filters (15) are embedded and fixed on the rear inner wall of the box-shaped bottom plate (2).

2. A trailer longitudinal beam according to claim 1, characterized in that: The buffer damping assembly comprises four outer tubes (5) fixedly connected to the bottom inner wall of the corresponding box-shaped bottom plate (2) in a rectangular shape, an inner rod (6) is slidably sleeved inside the outer tube (5), the top end of the inner rod (6) is fixedly connected to the bottom of the corresponding hollow support plate (4), four buffer springs (7) are fixedly connected in a rectangular shape between the bottom of the hollow support plate (4) and the bottom inner wall of the corresponding box-shaped bottom plate (2), the buffer springs (7) are movably sleeved on the corresponding outer tubes (5) and the inner rods (6), and a circular damping rubber block (8) is bonded and fixed between the bottom inner wall of the box-shaped bottom plate (2) and the bottom of the corresponding hollow support plate (4), and the circular damping rubber block (8) is located between the corresponding four outer tubes (5).

3. A trailer longitudinal beam according to claim 2, characterized in that: The extruded self-supply air component comprises a fixed sleeve (10) in a rectangular shape fixedly connected to the bottom inner wall of the corresponding box-shaped bottom plate (2); a one-way air inlet valve (11) is connected and fixed to the right bottom of the fixed sleeve (10); a piston (12) is provided in the sealing sliding sleeve inside the fixed sleeve (10); a vent pipe (13) connected to the inside of the corresponding fixed sleeve (10) is embedded and fixed on the top of the piston (12); and a one-way valve (14) is connected and fixed between the top end of the vent pipe (13) and the bottom inner wall of the corresponding hollow support plate (4).

4. The trailer longitudinal beam according to claim 1, characterized in that: Two air inlet holes are provided on the inner wall at the rear side of the box-shaped bottom plate (2), and the inner walls of the air inlet holes are fixedly connected to the outer sides of the corresponding ventilation filters (15).

5. The trailer longitudinal beam according to claim 1, characterized in that: The bottoms on both sides of the box-shaped bottom plate (2) and the tops on both sides of the hollow support plate (4) are fixedly connected with two bolt sleeves (16).

6. The trailer longitudinal beam according to claim 3, characterized in that: The left side of the one-way air inlet valve (11) is an outlet, and the top of the one-way valve (14) is an outlet.

7. The trailer longitudinal beam according to claim 2, characterized in that: A limiting hole is provided on the right inner wall of the outer tube (5), and a limiting block slidably connected to the corresponding limiting hole is fixedly connected to the right bottom of the inner rod (6).

8. A trailer, characterized in that: The trailer has two trailer longitudinal beam bodies according to any one of claims 1 to 7 arranged longitudinally and in parallel.

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