Middle-mounted trailer hook cross beam assembly connecting structure

Abstract

The utility model provides a middle trailer hook cross beam assembly connecting structure which comprises a vehicle body longitudinal beam, a longitudinal beam sealing plate and a vehicle body cross beam, a connecting pipe is arranged in a cavity of the vehicle body longitudinal beam, the connecting pipe penetrates through the longitudinal beam sealing plate, first bolt holes are formed in the left side wall and the right side wall of the vehicle body longitudinal beam, and first bolt holes are formed in the left side wall and the right side wall of the vehicle body cross beam. Second bolt holes are formed in the positions, corresponding to the first bolt holes, of the left side and the right side of the connecting pipe, and the first bolt holes and the second bolt holes are connected in a screwed mode. A first fixing plate is fixedly connected to the end, opposite to the vehicle body cross beam, of the connecting pipe, and the first fixing plate and the longitudinal beam sealing plate are fastened in a screwed mode. The utility model solves the problem that the connection strength between the middle-mounted tow hook assembly system of the existing vehicle type and the vehicle is insufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a central trailer hook crossbeam assembly connection structure. Background Art

[0002] In the modification of SUV models, it is more and more common to add a center trailer device assembly. The center trailer hook is mostly used to tow RVs or rescue situations. The above working conditions have high requirements on the connection method between the center trailer hook crossbeam assembly and the vehicle during use due to the large towing force. If it is not fully considered at the beginning of the design, it is easy to cause the center trailer hook crossbeam assembly and the vehicle to crack and fail due to insufficient strength of the connection point during use. The center trailer hook crossbeam assembly of the existing model is the same as the traditional anti-collision beam system. The energy absorption box sealing plate and the longitudinal beam sealing plate of the vehicle are connected by several X-direction bolts. During use, it is easy to cause the center trailer hook crossbeam assembly to fall off due to failure of the installation point due to excessive load in the towing working condition, which seriously affects the life and property safety of users, easily causes customer complaints, and affects the brand image. Therefore, it is necessary to invent a new connection structure of the center trailer hook crossbeam assembly. Utility Model Content

[0003] The utility model aims to provide a central trailer hook crossbeam assembly connection structure to solve the problem of insufficient connection strength between the central trailer hook assembly system and the vehicle of existing vehicle models.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A connection structure of a center trailer hook crossbeam assembly, comprising a vehicle body longitudinal beam, a longitudinal beam sealing plate, and a vehicle body crossbeam, a connecting pipe is arranged in the cavity of the vehicle body longitudinal beam, the connecting pipe passes through the longitudinal beam sealing plate, first bolt holes are opened on the left and right side walls of the vehicle body longitudinal beam, second bolt holes are opened on the left and right sides of the connecting pipe at positions corresponding to the first bolt holes, the first bolt holes and the second bolt holes are connected by screwing; a first fixing plate is fixedly connected to one end of the connecting pipe relative to the vehicle body crossbeam, and the first fixing plate is fastened to the longitudinal beam sealing plate by screwing.

[0006] Preferably, in combination with the above solution, a connecting hole is provided on the longitudinal beam sealing plate, and the connecting pipe passes through the connecting hole.

[0007] Preferably, in combination with the above solution, bolts are passed through the first bolt hole and the second bolt hole and are fastened by nuts.

[0008] Preferably, in combination with the above solution, the first fixing plate is fixedly connected to the vehicle body cross beam via a fixing assembly of a rectangular structure.

[0009] Preferably, in combination with the above solution, the fixing assembly includes a second fixing plate, a third fixing plate and a fourth fixing plate, the second fixing plate is an L-shaped structure, and the third fixing plate and the fourth fixing plate are both flat plate structures.

[0010] Preferably, in combination with the above solution, the second fixing plate is fixedly connected to the rear side surface of the vehicle body cross beam, the upper end surface of the third fixing plate, and the inner side surface of the fourth fixing plate respectively.

[0011] Preferably, in combination with the above solution, the third fixing plate is fixedly connected to the front side surface of the first fixing plate, the lower end of the second fixing plate, the inner side surface of the fourth fixing plate, and the lower end surface of the vehicle body cross beam respectively.

[0012] Preferably, in combination with the above solution, the fourth fixing plate is respectively fixedly connected to the front side of the first fixing plate, the outer side of the second fixing plate, the left and right ends of the vehicle body cross beam, and the outer side of the third fixing plate.

[0013] The beneficial effects of the utility model are as follows: the utility model adds a connecting pipe to the longitudinal beam cover plate of the center trailer hook crossbeam assembly, and connects it to the longitudinal beam of the vehicle body through bolts through side openings, thereby increasing the cross-sectional force of the longitudinal beam of the vehicle body in addition to the traditional X-direction bolt connection between the energy absorption box cover plate and the longitudinal beam cover plate, thereby playing a strengthening role. Not only is the installation structure simple, but the maintenance convenience is also effectively improved.

[0014] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is an assembly diagram of a center trailer hook crossbeam assembly connection structure.

[0016] Figure 2 This is an assembly diagram of a central trailer hook crossbeam assembly connection structure of the utility model in another direction after the vehicle body floor is removed.

[0017] Figure 3 for Figure 1 A magnified view of the structure of part I.

[0018] Figure 4 for Figure 2 Enlarged view of the structure of part II.

[0019] Figure 5 The utility model is a structural diagram of a center trailer hook beam assembly.

[0020] Figure 6 This is a structural diagram of a central trailer hook crossbeam assembly of the utility model in another direction.

[0021] Among them, 10. body floor; 20. body longitudinal beam; 30. body cross beam; 1. connecting pipe; 2. first fixing plate; 3. bolt; 4. nut; 5. second fixing plate; 6. third fixing plate; 7. fourth fixing plate; 101. second bolt hole; 201. bolt connection hole; 41. connection hole. DETAILED DESCRIPTION

[0022] like Figures 1 to 6 A central trailer hook beam assembly connection structure shown in the figure comprises two groups of vehicle body longitudinal beams 20 and two groups of longitudinal beam sealing plates 40 arranged on the left and right sides of the vehicle body, and a group of vehicle body cross beams 30, a connecting pipe 1 is arranged in the cavity of the vehicle body longitudinal beam 20, the connecting pipe 1 passes through the longitudinal beam sealing plate 40, first bolt holes 21 are opened on the left and right side walls of the vehicle body longitudinal beam 20, second bolt holes 101 are opened on the left and right sides of the connecting pipe 1 at positions corresponding to the first bolt holes 21, and the diameter of the second bolt holes 101 is 14.5 mm; the first bolt holes 21 and the second bolt holes 101 are connected by screwing; the connecting pipe 1 is fixedly connected to a first fixing plate 2 at one end relative to the vehicle body cross beam 30, the first fixing plate 2 is fastened to the longitudinal beam sealing plate 40 by screwing, a plurality of groups of bolt connection holes 201 are arranged on the first fixing plate 2, and the diameter of the bolt connection holes 201 is 11 mm, and correspondingly, the longitudinal beam sealing plate 40 is also provided with a plurality of through holes for being connected to the bolt connection holes 201 by screwing. The first fixing plate 2 is also provided with a plurality of positioning and weight-reducing holes.

[0023] In order to facilitate the installation and avoidance of the connecting pipe 1, a connecting hole 41 of a rectangular structure is opened on the longitudinal beam sealing plate 40, and the connecting pipe 1 passes through the connecting hole 41. The connecting pipe 1 can be made of rectangular sheet metal, which is more convenient for processing and connection.

[0024] In order to facilitate the connection and fastening of the connecting pipe 1 and the vehicle body longitudinal beam 20 by bolts and nuts, bolts 3 are passed through the first bolt holes 21 and the second bolt holes 101 and are connected and fastened by nuts 4.

[0025] In order to increase the strength of the connection structure, the first fixing plate 2 is fixedly connected to the vehicle body cross beam 30 through a fixing assembly of a rectangular structure. The rectangular structure can better be fixedly connected to the surrounding hand parts, and also has the structural function of an energy absorption box.

[0026] In order to facilitate the connection design of peripheral parts and increase the connection strength, the fixing assembly includes a second fixing plate 5, a third fixing plate 6 and a fourth fixing plate 7. The second fixing plate 5 is an L-shaped structure, and the third fixing plate 6 and the fourth fixing plate 7 are both flat plate structures. The second fixing plate 5, the third fixing plate 6 and the fourth fixing plate 7 are all fixedly connected to each other by welding.

[0027] In order to facilitate the connection design of peripheral parts and increase the connection strength, the second fixing plate 5 is fixedly connected to the rear side surface of the vehicle body cross beam 30, the upper end surface of the third fixing plate 6, and the inner side surface of the fourth fixing plate 7 by welding.

[0028] In order to facilitate the connection design of peripheral parts and increase the connection strength, the third fixing plate 6 is fixedly connected to the front side surface of the first fixing plate 2, the lower end of the second fixing plate 5, the inner side surface of the fourth fixing plate 7, and the lower end surface of the vehicle body cross beam 30 by welding.

[0029] In order to facilitate the connection design of peripheral parts and increase the connection strength, the fourth fixing plate 7 is fixedly connected to the front side of the first fixing plate 2, the outer side of the second fixing plate 5, the left and right ends of the vehicle body cross beam 30, and the outer side of the third fixing plate 6 by welding.

[0030] The present invention changes the previous installation method of the center trailer hook anti-collision beam, adds a rectangular connecting pipe 1 on the longitudinal beam cover plate of the center trailer hook cross beam assembly, and connects it with the vehicle body longitudinal beam 20 through a side opening through a 10.9-grade high-strength bolt 3. In addition to the traditional X-axis bolt connection between the energy absorption box cover plate and the longitudinal beam cover plate 40, the cross-sectional force of the vehicle body longitudinal beam 20 is increased, thereby playing a strengthening role. Not only is the installation structure simple, but the maintenance convenience is also effectively improved.

[0031] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. 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.

[0032] The utility model is described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or they are directly applied to other occasions, they all fall within the protection scope of the utility model.

Claims

1. A connection structure of a center trailer hook cross beam assembly, comprising a vehicle body longitudinal beam (20), a longitudinal beam sealing plate (40), and a vehicle body cross beam (30), wherein: A connecting pipe (1) is provided in the cavity of the vehicle body longitudinal beam (20), and the connecting pipe (1) passes through the longitudinal beam sealing plate (40). First bolt holes (21) are provided on the left and right side walls of the vehicle body longitudinal beam (20), and second bolt holes (101) are provided on the left and right sides of the connecting pipe (1) at positions corresponding to the first bolt holes (21), and the first bolt holes (21) and the second bolt holes (101) are connected by screw connection; a first fixing plate (2) is fixedly connected to one end of the connecting pipe (1) relative to the vehicle body cross beam (30), and the first fixing plate (2) and the longitudinal beam sealing plate (40) are fastened by screw connection.

2. The central trailer hook beam assembly connection structure according to claim 1 is characterized in that: The longitudinal beam sealing plate (40) is provided with a connecting hole (41), and the connecting pipe (1) passes through the connecting hole (41).

3. The central trailer hook beam assembly connection structure according to claim 1 is characterized in that: Bolts (3) are inserted into the first bolt hole (21) and the second bolt hole (101) and are connected and fastened by nuts (4).

4. The central trailer hook beam assembly connection structure according to claim 1 is characterized in that: The first fixing plate (2) is fixedly connected to the vehicle body cross beam (30) via a fixing assembly of a rectangular structure.

5. The central trailer hook beam assembly connection structure according to claim 4 is characterized in that: The fixing assembly comprises a second fixing plate (5), a third fixing plate (6) and a fourth fixing plate (7); the second fixing plate (5) is an L-shaped structure, and the third fixing plate (6) and the fourth fixing plate (7) are both flat plate structures.

6. The center trailer hook beam assembly connection structure according to claim 5 is characterized in that: The second fixing plate (5) is respectively fixedly connected to the rear side surface of the vehicle body cross beam (30), the upper end surface of the third fixing plate (6), and the inner side surface of the fourth fixing plate (7).

7. The center trailer hook beam assembly connection structure according to claim 5, characterized in that: The third fixing plate (6) is respectively fixedly connected to the front side surface of the first fixing plate (2), the lower end of the second fixing plate (5), the inner side surface of the fourth fixing plate (7), and the lower end surface of the vehicle body cross beam (30).

8. The center trailer hook beam assembly connection structure according to claim 5, characterized in that: The fourth fixing plate (7) is respectively fixedly connected to the front side of the first fixing plate (2), the outer side of the second fixing plate (5), the left and right ends of the vehicle body cross beam (30), and the outer side of the third fixing plate (6).

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