Welding-free van chassis

Abstract

The utility model discloses a welding-free van chassis, which relates to the technical field of van chassis, and comprises a fixed plate, the front side and the rear side of the bottom end of the fixed plate are respectively provided with a side beam column, the right side ends of the side beam columns extend out of the fixed plate, and a plurality of fixed beams are movably arranged between the side beam columns at the front end and the rear end. According to the connecting piece, the fitting performance of the connecting piece during connection and use is improved through the L-shaped structure, the connecting piece is connected and fixed through the fixing screw rod, in the assembling and installing process, installing and fixing can be completed without a welding mode, operation can be completed without a special instrument, and the connecting piece is convenient to use. And the connecting piece is used for replacing welding, so that the manufacturing process of the chassis is simplified, toxic gas generated by welding is reduced, and the environment is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of box car chassis, in particular to a welding-free box car chassis. Background Art

[0002] At present, the chassis is also called the frame. It bears all the weight of the vehicle under static or dynamic conditions, including the engine, gearbox, passengers, and the pressure on the vehicle under harsh road conditions and braking and acceleration, just like the role of human bones. The chassis of traditional vans is fixed by welding, and during the processing, not only special equipment is required for processing, but also a large amount of toxic gas is generated during the processing, which is not conducive to the simplification of the process and the protection of the environment. Utility Model Content

[0003] The purpose of the utility model is to provide a welding-free boxcar chassis to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding-free box car chassis, including a fixed plate, side beams are installed on the front and rear sides of the bottom end of the fixed plate, the right ends of the side beams are extended outside the fixed plate, a plurality of fixed beams are movably arranged between the side beams at the front and rear ends, a plurality of cross beams are movably arranged on the top ends of the side beams and the fixed beams at the front and rear ends, connecting parts are installed on the front and rear ends of the cross beams, a plurality of connecting pin openings are equidistantly opened in the middle of the side beams, a connecting opening is opened in the middle of one side of the connecting part away from the cross beam, the size of the connecting pin opening is smaller than the size of the connecting opening, and fixing screws are threadably installed in the connecting pin opening and the connecting opening.

[0005] Preferably, the connecting members are all L-shaped structures, and a plurality of installation openings are equidistantly provided at the top ends of the side beams.

[0006] Preferably, a plurality of mounting holes are equidistantly provided on the outside of the fixed beam, the fixed beams are all C-shaped structures, and the cross beam column is located at the top of the fixed beam.

[0007] Preferably, a plurality of limiting fasteners are equidistantly installed on the right side of the fixed beam, the limiting fasteners are connected to the fixed beam via bolts, and the top ends of the limiting fasteners are in a triangular structure.

[0008] Preferably, an expansion opening is opened on the side of the connecting pin opening close to the fixed beam, an extrusion ring is movably arranged inside the expansion opening, a plurality of elastic push rods are installed around the extrusion ring and on the side close to the expansion opening, and the end of the elastic push rod away from the extrusion ring is in contact with the inside of the expansion opening.

[0009] Preferably, the extrusion rings are all in a circular ring structure, the elastic push rods are all made of spring steel, and a docking port is provided inside the expansion opening at a position opposite to the elastic push rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. When the utility model fixes the connecting rod and the side beam column, the screw fixing screw passes through the inside of the connecting pin opening, and one side of the fixing screw contacts the extrusion ring, and pushes the extrusion ring to move toward the expansion opening. When the extrusion ring moves, it squeezes the elastic push rod, and the reaction force of the elastic push rod pushes the extrusion ring to move, and the friction force of the fixing screw during the connection and installation is increased, which increases the firmness during the fixation and avoids looseness during the connection and fixation.

[0012] 2. The utility model increases the fit of the connector during use through an L-shaped structure, and is connected and fixed through a fixing screw. During the assembly and installation process, the installation and fixation can be completed without welding, and the operation can be completed without special equipment. It is more convenient and quick when fixing, and the use of connectors instead of welding simplifies the manufacturing process of the chassis and reduces the toxic gas generated by welding to protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Provide an overall structural schematic diagram for an embodiment of the utility model;

[0014] Figure 2 A structural diagram of a partial cross-section of a side beam column provided in an embodiment of the utility model;

[0015] Figure 3 The embodiment of the utility model provides Figure 1 A magnified structural diagram.

[0016] In the figure: 1. side beam column; 2. cross beam column; 3. fixed beam; 4. limiting fastener; 5. fixing plate; 6. connecting pin mouth; 7. expansion mouth; 8. elastic push rod; 9. extrusion ring; 10. docking port; 11. connecting piece; 12. fixing screw. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: a welding-free box car chassis, including a fixed plate 5, side beams 1 are installed on the front and rear sides of the bottom end of the fixed plate 5, the right ends of the side beams 1 are extended outside the fixed plate 5, a plurality of fixed beams 3 are movably arranged between the front and rear end side beams 1, a plurality of cross beams 2 are movably installed on the tops of the front and rear end side beams 1 and the fixed beams 3, connecting pieces 11 are installed on the front and rear ends of the cross beams 2, a plurality of connecting pins 6 are equidistantly opened in the middle of the side beams 1, a connecting opening is opened in the middle of the connecting piece 11 and one side away from the cross beam 2, the size of the connecting pin 6 is smaller than the size of the connecting opening, and fixing screws 12 are screwedly installed in the connecting pin 6 and the inside of the connecting opening.

[0019] The connecting pieces 11 are all L-shaped structures, and a plurality of installation openings are evenly spaced at the top of the side beam column 1. In this way, the L-shaped structure increases the fit of the connecting piece 11 when connected and used, and the connection and fixation are performed by the fixing screw 12. In the process of assembly and installation, the installation and fixation can be completed without welding, and the operation can be completed without special equipment, and the fixation is more convenient and quick;

[0020] Several mounting holes are evenly spaced outside the fixed beam 3. The fixed beam 3 is a C-shaped structure. The crossbeam column 2 is located at the top of the fixed beam 3, so that the external connector is connected and installed with the fixed beam 3 through the mounting holes.

[0021] A plurality of limiting fasteners 4 are evenly installed on the right side of the fixed beam 3. The limiting fasteners 4 are connected to the fixed beam 3 by bolts. The tops of the limiting fasteners 4 are all triangular structures. In this way, the fixing beam 3 and the crossbeam column 2 are installed and connected firmly by the limiting fasteners 4.

[0022] An expansion opening 7 is provided on the side of the connecting pin opening 6 close to the fixed beam 3, and an extrusion ring 9 is movably provided inside the expansion opening 7. A plurality of elastic push rods 8 are installed around the extrusion ring 9 and the side close to the expansion opening 7. One end of the elastic push rod 8 away from the extrusion ring 9 contacts the inside of the expansion opening 7, so that when the connecting rod 11 and the side beam column 1 are fixed, the screw fixing screw 12 passes through the inside of the connecting pin opening 6, and one side of the fixing screw 12 contacts the extrusion ring 9, and pushes the extrusion ring 9 to move toward the side of the expansion opening 7. When the extrusion ring 9 moves, the elastic push rod 8 is squeezed, and the reaction force of the elastic push rod 8 pushes the extrusion ring 9 to move, and the friction force of the fixing screw 12 during the connection and installation is increased, which increases the firmness during the fixation and avoids looseness during the connection and fixation.

[0023] The extrusion rings 9 are all in a circular ring structure, and the elastic push rods 8 are all made of spring steel. A docking port 10 is provided inside the expansion port 7 at a position relative to the elastic push rod 8. In this way, the spring steel material increases the elasticity and life of the elastic push rod 8 during use, and the docking port 10 increases the limiting ability of the elastic push rod 8 during use.

[0024] Working principle: When the utility model fixes the connecting rod 11 and the side beam column 1, the screw-moving fixing screw 12 passes through the inside of the connecting pin opening 6, and makes one side of the fixing screw 12 contact with the extrusion ring 9, and pushes the extrusion ring 9 to move toward the expansion opening 7. When the extrusion ring 9 moves, it will squeeze the elastic push rod 8, and the extrusion ring 9 will be pushed to move by the reaction force of the elastic push rod 8, and the friction force of the fixing screw 12 during connection and installation will be increased, which will increase the firmness during fixation and avoid looseness during connection and fixation. The L-shaped structure is used to increase the fit of the connecting piece 11 during connection and use, and the connection and fixation are performed through the fixing screw 12. In the process of assembly and installation, the installation and fixation can be completed without welding, and the operation can be completed without special equipment, and it is more convenient and quick when fixing.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding-free box truck chassis, comprising a fixing plate (5), characterized in that: The front and rear sides of the bottom end of the fixing plate (5) are both installed with side beams (1), the right ends of the side beams (1) are both extended outside the fixing plate (5), a plurality of fixed beams (3) are movably arranged between the front and rear end side beams (1), a plurality of cross beams (2) are movably arranged at the tops of the front and rear end side beams (1) and the fixed beams (3), the front and rear end of the cross beams (2) are both installed with connecting pieces (11), a plurality of connecting pin openings (6) are equidistantly arranged in the middle of the side beams (1), a connecting opening is arranged in the middle of the side of the connecting piece (11) away from the cross beam (2), the size of the connecting pin opening (6) is smaller than the size of the connecting opening, and fixing screws (12) are both screwedly arranged in the connecting pin opening (6) and the inside of the connecting opening.

2. The welding-free box truck chassis according to claim 1, characterized in that: The connecting pieces (11) are all L-shaped structures, and a plurality of installation openings are equidistantly formed at the top of the side beam column (1).

3. The welding-free box truck chassis according to claim 1, characterized in that: The fixed beam (3) is provided with a plurality of mounting holes at equal intervals on the outside, the fixed beam (3) is in a C-shaped structure, and the crossbeam column (2) is located at the top end of the fixed beam (3).

4. The welding-free box truck chassis according to claim 1, characterized in that: A plurality of limiting fasteners (4) are equidistantly installed on the right side of the fixed beam (3); the limiting fasteners (4) are connected to the fixed beam (3) via bolts; and the top ends of the limiting fasteners (4) are all in a triangular structure.

5. The welding-free box truck chassis according to claim 1, characterized in that: An expansion opening (7) is provided on a side of the connecting pin opening (6) close to the fixed beam (3), an extrusion ring (9) is movably arranged inside the expansion opening (7), a plurality of elastic push rods (8) are installed around the side of the extrusion ring (9) close to the expansion opening (7), and one end of the elastic push rod (8) away from the extrusion ring (9) contacts the inside of the expansion opening (7).

6. The welding-free box truck chassis according to claim 5, characterized in that: The extrusion rings (9) are all in a circular ring structure, the elastic push rods (8) are all made of spring steel, and a docking port (10) is provided inside the expansion opening (7) at a position opposite to the elastic push rod (8).

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