CN221023156U - Drag reinforcing structure and vehicle - Google Patents

Abstract

The utility model provides a dragging reinforcing structure and a vehicle, comprising a rear bumper beam, an installation seat and a dragging head, wherein the rear bumper beam is connected between two longitudinal beams, the installation seat is connected below the rear bumper beam, and the dragging head is connected to the rear side of the installation seat; the lower cladding of two rear bumper crossbeams has the lower package board, and the rear bumper crossbeam includes the crossbeam body that two front and back intervals set up, and the front and back side margin of lower package board extends to respectively and links to each other with the lateral wall of crossbeam body, and the mount pad is connected in the below of lower package board. According to the drag reinforcement structure provided by the utility model, the rear bumper beam is in a mode of combining the front beam body and the rear beam body, the lower wrapping plate wrapping the lower side of the rear bumper beam can strengthen the connection strength between the two beam bodies, the bending rigidity and strength of the whole rear bumper beam are improved, and the drag head is reliably arranged below the rear bumper beam through the mounting seat, so that the load force is conveniently transmitted to the rear bumper beam and the longitudinal beam forwards, and the drag performance of a vehicle is ensured.

Description

Drag reinforcing structure and vehicle

Technical Field

The utility model belongs to the technical field of vehicle dragging structures, and particularly relates to a dragging reinforcing structure and a vehicle.

Background

In daily tour of people, certain vehicle types with dragging capability are gradually used so as to meet the requirements of dragging a caravan, a yacht and the like. Common medium and large SUV motorcycle types and off-road motorcycle types in the market can have the dragging performance simultaneously so as to improve the practicability of the motorcycle types.

Existing towing structures are typically mounted on a cross member of a rear bumper or attached below a frame, and require a rear beam or frame to provide a large towing force due to the generally heavy weight of the towing equipment. The existing mounting structure is difficult to provide enough dragging force, the problem of insufficient dragging strength exists in the vehicle, the fatigue durability is poor, and the dragging performance of the vehicle is directly affected.

Disclosure of utility model

The utility model aims to provide a dragging reinforcing structure and a vehicle, which can effectively improve the dragging capacity of the vehicle and meet the dragging requirements of facilities with different weights.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the drag reinforcement structure comprises a rear bumper beam, an installation seat and a drag head, wherein the rear bumper beam is connected between two longitudinal beams, the installation seat is connected below the rear bumper beam, and the drag head is connected to the rear side of the installation seat;

Wherein, the lower part cladding of two rear bumper crossbeams has the lower package board, and the rear bumper crossbeam includes two front and back interval settings, and is located the crossbeam body of package board down, and the front and back side reason of package board down extends to and links to each other with the lateral wall of crossbeam body respectively, and the mount pad is connected in the below of package board down.

In one possible implementation, the upper portion of the rear bumper beam is further covered with an upper cladding plate, the rear side edge of which extends downward and is connected to the rear side wall of the rear lower cladding plate.

In one possible implementation, the upper cladding plate is provided with a reinforcing rib protruding backward, and the reinforcing rib extends along the trend of the beam body.

In one possible implementation, the mounting seat includes a reinforcing plate connected below the rear bumper beam and a sleeve connected below the reinforcing plate, the sleeve is used for being sleeved on the periphery of the dragging head, the dragging head is hinged in the sleeve through a hinge shaft extending in the left-right direction, and a locking piece extending upwards and abutting against the bottom of the dragging head is connected to the bottom of the sleeve in a threaded manner.

In some embodiments, the support columns extending upwards into the beam body are connected above the reinforcing plate, and two groups of support columns are arranged at intervals along the front-rear direction, and each group of support columns comprises at least two support columns penetrating through the lower cladding plate and extending into the same beam body.

In some embodiments, two side vertical plates extending downwards respectively and located at two sides of the sleeve are connected to the bottom surface of the reinforcing plate, and the inner side walls of the side vertical plates are connected with the outer side walls of the sleeve.

In one possible implementation manner, the end part of the rear bumper beam is connected to the longitudinal beam through a connecting plate, the plate surface of the connecting plate is perpendicular to the rear bumper beam, an upper diagonal bracing connected with the connecting plate is arranged above the rear bumper beam, the inner ends of the upper diagonal bracing are respectively connected with the top surfaces of the two beam bodies, and the outer ends of the upper diagonal bracing extend obliquely upwards and are connected with the inner side walls of the connecting plate.

In some embodiments, the front side of the rear bumper beam is provided with a front diagonal brace connected with the connecting plate, the inner end of the front diagonal brace is connected with the front side wall of the lower package plate, and the outer end of the front diagonal brace extends forwards in a tilting manner and is connected with the inner side wall of the connecting plate.

In some embodiments, the towing reinforcing structure further includes a reinforcing branch pipe disposed at a rear end of the longitudinal beam, the reinforcing branch pipe being disposed inside the longitudinal beam perpendicular to the connection plate, and an axial projection of the reinforcing branch pipe being disposed in the connection plate.

Compared with the prior art, the drag reinforcement structure provided by the embodiment of the application has the advantages that the rear bumper beam is in a mode of combining the front beam body with the rear beam body, the rear bumper beam is connected between the two longitudinal beams, the lower wrapping plate wrapping the lower part of the rear bumper beam can strengthen the connection strength between the two beam bodies, the bending rigidity and strength of the whole rear bumper beam are improved, the drag head is reliably arranged below the rear bumper beam through the mounting seat, the load force is conveniently transmitted forwards to the rear bumper beam and the longitudinal beams, and the drag performance of a vehicle is ensured.

The utility model also provides a vehicle comprising the drag reinforcement structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a drag reinforcement structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the left-hand cross-sectional structure of FIG. 1 according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a partial enlarged structure of I in FIG. 2 according to an embodiment of the present utility model;

Fig. 4 is a schematic structural diagram of the mounting base, the towing head and the support column in fig. 2 according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. A connecting plate; 11. reinforcing branch pipes; 2. a beam body; 21. a lower wrapping plate; 22. a wrapping plate; 23. reinforcing convex strips; 24. a support column; 3. a mounting base; 31. a sleeve; 32. a reinforcing plate; 321. a lightening hole; 33. a hinge shaft; 34. a locking member; 35. a side vertical plate; 36. a reinforcing sleeve; 4. a drag head; 5. an upper diagonal brace; 6. a front diagonal brace; 7. and (5) a longitudinal beam.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the claims, the specification and the drawings of the utility model, the terms "front" and "rear" are the same as the front-rear direction of the vehicle body, the terms "left" and "right" are the same as the left-right direction of the vehicle body, and the terms "up" and "down" are the same as the up-down direction of the vehicle body; the term "inner" refers to a direction toward the central axis of the body and the term "outer" refers to a direction away from the central axis of the body, wherein the central axis of the body is parallel to the fore-aft direction of the body. The use of the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "clockwise," "counterclockwise," "high," "low," etc. to indicate a position or a positional relationship is based on the position and positional relationship shown in the drawings, unless otherwise explicitly defined, and is merely for convenience of description and to simplify the description, as opposed to indicating or implying that the apparatus or elements so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the specific scope of the utility model.

Referring to fig. 1 to 4, a description will now be given of a drag reinforcement structure and a vehicle provided by the present utility model. The drag reinforcement structure comprises a rear bumper beam, an installation seat 3 and a drag head 4, wherein the rear bumper beam is connected between two longitudinal beams 7, the installation seat 3 is connected below the rear bumper beam, and the drag head 4 is connected to the rear side of the installation seat 3;

Wherein, the lower part cladding of two rear bumper crossbeams has down the package board 21, and the rear bumper crossbeam includes two front and back interval settings, and is located the crossbeam body 2 of package board 21 down, and the front and back side margin of package board 21 extends to respectively and links to each other with the lateral wall of crossbeam body 2 down, and mount pad 3 is connected in the below of package board 21 down.

Compared with the prior art, the drag reinforcing structure provided by the embodiment, the rear bumper beam is in the form of combining front and rear two beam bodies 2, the rear bumper beam is connected between two longitudinal beams 7, the lower wrapping plate 21 wrapping the lower side of the beam body 2 can strengthen the connection strength between the two beam bodies 2, the bending rigidity and strength of the whole rear bumper beam are improved, the drag head 4 is reliably arranged below the rear bumper beam through the mounting seat 3, the load force is conveniently transmitted to the rear bumper beam and the longitudinal beams 7 forwards, and the drag performance of the vehicle is ensured.

In this embodiment, the towing head 4 sequentially transfers the load to the mounting seat 3, the rear bumper beam and the longitudinal beam 7 during towing, the exciting direction of the towing head 4 is mainly the longitudinal direction of the vehicle body (i.e. the front-rear direction of the vehicle body), the rear bumper beam is used for bearing main bending load, the longitudinal beam 7 is used for bearing combined tensile and bending load, and the load can be realized by improving the bending strength of the rear bumper beam and the connection strength between the longitudinal beam 7 and the rear bumper beam.

Compared with the single pipe body, the bending strength of the rear bumper beam can be improved by combining the two beam bodies 2, the lower wrapping plate 21 wrapping the lower parts of the two beam bodies 2 can further improve the bending strength of the rear bumper beam, and the dragging performance of the rear bumper beam is ensured.

Specifically, the thickness of the lower cladding plate 21 is 1.5mm to 3mm, the front side edge of the lower cladding plate 21 extends upwards and is welded on the front side arm of the beam body 2 positioned at the front side, the rear side edge of the lower cladding plate 21 extends upwards and is welded on the rear side wall of the beam body 2 positioned at the rear side, the welding bead between the two beam bodies 2 is effectively protected, and the connection strength between the two beam bodies 2 is enhanced.

In some possible implementations, the characteristic beam body 2 adopts a structure as shown in fig. 2 to 3. Referring to fig. 2 to 3, the upper portion of the rear cross member is further covered with an upper wrap plate 22, and the rear side edge of the upper wrap plate 22 extends downward and is connected to the rear side wall of the rear lower wrap plate 21.

In this embodiment, the upper cladding plate 22 above the beam body 2 can cooperate with the lower cladding plate 21 to form a structure surrounding the outer circumferences of the two beam bodies 2, so as to enhance the connection strength of the two beam bodies 2 and promote the deformation resistance of the rear bumper beam. The upper part of the upper wrapper sheet 22 can be provided with a pedal bearing plate which can be welded on a plane area above the upper wrapper sheet 22, so that the installation quality of the bearing plate is convenient to ensure, and the bearing plate meets pedal requirements.

The two beam bodies 2 are combined and provided with the structural form of the lower cladding plate 21, so that a sufficient installation area is provided for the installation of the lower installation seat 3, and the two beam bodies 2 can be connected in a welding way. Specifically, the width dimension of the beam body 2 is not less than 30mm, and the above dimension range not only can ensure the strength performance thereof, but also can meet the requirement of the installation dimension of the lower installation seat 3.

In some embodiments, the feature wrapper sheet 22 may take the configuration shown in fig. 2-3. Referring to fig. 2 to 3, the upper cladding plate 22 is provided with reinforcing ribs 23 protruding rearward, and the reinforcing ribs 23 extend along the direction of the cross member body 2.

In this embodiment, the upper cladding plate 22 is provided with the reinforcing raised strips 23 extending along the trend of the beam body 2, and the reinforcing raised strips 23 are located at the rear side of the beam body 2, so that the capability of the beam body 2 in resisting bending deformation can be enhanced, and the overall structural strength of the rear bumper beam is enhanced on the basis of not increasing the thickness of the upper cladding plate 22.

In some possible implementations, the feature mount 3 adopts a structure as shown in fig. 2 to 4. Referring to fig. 2 to 4, the mounting base 3 includes a reinforcing plate 32 connected to the lower portion of the rear bumper beam and a sleeve 31 connected to the lower portion of the reinforcing plate 32, the sleeve 31 is configured to be sleeved on the outer periphery of the drag head 4, the drag head 4 is hinged in the sleeve 31 by a hinge shaft 33 extending in the left-right direction, and a locking member 34 extending upward and abutting against the bottom of the drag head 4 is screwed to the bottom of the sleeve 31.

In this embodiment, the sleeve 31 is mounted under the rear bumper beam by the reinforcing plate 32, and the weight-reducing hole 321 can be formed at a position with little stress on the middle of the reinforcing plate 32 to realize the weight-reducing effect. The thickness of reinforcing plate 32 is around 10mm, and reinforcing plate 32 adopts welded connection's mode respectively with sleeve 31 and the lower package board 21 of top, and the both sides of reinforcing plate 32 outwards evaginate respectively in sleeve 31's both sides wall setting, can effectively increase the area of connection with the rear bumper crossbeam, helps reinforcing connection's reliability.

The sleeve 31 accommodates the rear portion of the towing head 4, and is hinged in the sleeve 31 by a hinge shaft 33, and the hinge shaft 33 extends in the left-right direction of the vehicle body. The locking piece 34 penetrates through the bottom wall of the sleeve 31 and can be pressed against the lower part of the bottom surface of the dragging head 4, so that the position of the dragging head 4 is reliably locked, and the dragging effect of an object to be dragged is ensured.

Further, the rear end periphery of the sleeve 31 is further sleeved with a reinforcing sleeve 36, the rear end face of the reinforcing sleeve 36 is flush with the rear end face of the sleeve 31, and the sleeve 31 can provide enough resistance when the locking piece 34 is pressed against the towing head 4, so that the locking effect of the towing head 4 is prevented from being influenced by structural deformation of the sleeve 31.

In some embodiments, the feature stiffener 32 may take the configuration shown in fig. 2-4. Referring to fig. 2 to 4, the support columns 24 extending upward into the beam body 2 are connected above the reinforcing plate 32, and two groups of support columns 24 are provided at intervals in the front-rear direction, each group of support columns 24 including at least two support columns 24 extending into the same beam body 2 and disposed through the lower cladding plate 21.

In this embodiment, by providing the support column 24 above the reinforcing plate 32, the connection strength between the mount pad 3 and the rear bumper beam is enhanced. The support column 24 is fixedly connected above the reinforcing plate 32, and extends upwards into the beam body 2 through the lower cladding plate 21.

The upper end of the support column 24 is provided with a step with smaller inner diameter, and the step penetrates through the top wall of the beam body 2 and is in welded connection with the beam body 2, so that welding operation is facilitated, the welding area is increased, and good connection reliability is ensured.

In some embodiments, the feature stiffener 32 may take the configuration shown in fig. 2-4. Referring to fig. 2 to 4, two side uprights 35 extending downward respectively and located at both sides of the sleeve 31 are connected to the bottom surface of the reinforcing plate 32, and inner side walls of the side uprights 35 are connected to outer side walls of the sleeve 31.

In this embodiment, the upper edge of the side stand 35 is connected with the bottom surface of the reinforcing plate 32, the side stand 35 and the reinforcing plate 32 can form a structure coated on the upper portion of the sleeve 31, the side stand 35 is welded with the peripheral wall of the sleeve 31, the connection area is increased, the connection strength is improved, and the dragging force applied to the dragging head 4 can be effectively transmitted to the rear bumper beam and the longitudinal beam 7 on the front side.

In some possible implementations, the rear bumper beam has the structure shown in fig. 1 to 2. Referring to fig. 1 to 2, the end parts of the rear bumper beams are connected to longitudinal beams 7 through connecting plates 1, the plate surfaces of the connecting plates 1 are perpendicular to the rear bumper beams, upper diagonal braces 5 connected with the connecting plates 1 are arranged above the rear bumper beams, the inner ends of the upper diagonal braces 5 are respectively connected with the top surfaces of two beam bodies 2, and the outer ends of the upper diagonal braces 5 extend obliquely upwards and are connected with the inner side walls of the connecting plates 1.

In this embodiment, utilize connecting plate 1 to effectively connect two ends of back beam respectively with two longerons 7, connecting plate 1 accessible connecting piece such as bolt or screw links to each other with longeron 7, and back beam still is provided with down tube 5 between back beam and connecting plate 1 when linking to each other with connecting plate 1, goes up down tube 5 and lies in the top of back beam, and the inner and the back beam of down tube 5 link to each other, and the outer end links to each other with connecting plate 1, has guaranteed the connectivity between back beam and the connecting plate 1.

Specifically, the edges of the upper cladding plate 22, which are close to the two ends of the beam body 2, are respectively provided with a certain distance from the corresponding connecting plates 1, the upper diagonal bracing 5 is arranged in the area of the top of the beam body 2, which is not provided with the upper cladding plate 22, the inner ends of the upper diagonal bracing 5 are respectively connected with the top surfaces of the two beam bodies 2, the outer ends of the upper diagonal bracing 5 gradually extend in an upward inclined manner, and the connection reliability between the beam body 2 and the connecting plates 1 is ensured.

In some possible implementations, the rear bumper beam has a structure as shown in fig. 3. Referring to fig. 3, the front side of the rear bumper beam is provided with a front diagonal brace 6 connected with the connection plate 1, the inner end of the front diagonal brace 6 is connected with the front side wall of the lower cladding plate 21, and the outer end of the front diagonal brace 6 extends obliquely forward and is connected with the inner side wall of the connection plate 1.

In this embodiment, a front diagonal brace 6 is further disposed between the rear bumper beam and the connecting plate 1, the inner end of the front diagonal brace 6 is connected with the front side wall of the beam body 2 located at the front side, and the outer end of the front diagonal brace 6 is connected with the connecting plate 1, so that the connection effect of the rear bumper beam and the connecting plate 1 is further improved, and the load stress transmitted by the dragging head 4 is conveniently resisted.

The arrangement of the front diagonal bracing 6 and the upper diagonal bracing 5 further improves the structural durability of the rear bumper beam, and fully ensures the strength and rigidity of the rear bumper beam for bearing bending loads in all directions, and the thicknesses of the front diagonal bracing 6 and the upper diagonal bracing 5 are 3.5-6.0mm. The components contained in the structure are in regular square tube structures or flat plate structures, and are welded at the plane positions as much as possible, so that the defects of a welding process are avoided, and the connection quality between the components is ensured.

In some possible implementations, referring to fig. 3, the towing reinforcement structure further includes a reinforcement branch 11 disposed at the rear end of the stringer 7, the reinforcement branch 11 being disposed inside the stringer 7 perpendicular to the connection plate 1, and an axial projection of the reinforcement branch 11 being located within the connection plate 1.

In this embodiment, the axial projection of the reinforcing branch pipe 11 is located in the connecting plate 1, so that the connection position of the longitudinal beam 7 and the connecting plate 1 can be structurally reinforced, the structural strength of the region is ensured, the damage caused by overlarge stress to the local position of the longitudinal beam 7 is avoided, and the connection reliability between the connecting plate 1 and the longitudinal beam 7 is improved.

Specifically, three cylindrical reinforcing branch pipes 11 are welded inside the longitudinal beam 7, the thickness of the reinforcing branch pipes 11 is 4.5-8.0mm, the bending strength of the longitudinal beam 7 can be effectively improved, meanwhile, the structural strength of a bolt connection position is also improved, the problem of extrusion deformation of the longitudinal beam 7 caused by the stress of the connecting plate 1 is avoided, and the strength and rigidity performance of the longitudinal beam 7 at the connection position are ensured. Simulation analysis and experiments prove that the upper limit of the use of the dragging weight corresponding to the structure can reach 3.5T, and the dragging performance is improved by approximately 75%.

Based on the same inventive concept, the embodiment of the application also provides a vehicle, which comprises the towing reinforcing structure. The rear bumper beam of the vehicle adopts the mode that the front beam body 2 and the rear beam body 2 are combined, the lower wrapping plate 21 wrapping the lower side of the beam body 2 can strengthen the connection strength between the two beam bodies 2, the bending rigidity and strength of the whole rear bumper beam are improved, the dragging head 4 is reliably arranged below the rear bumper beam through the mounting seat 3, the load force is conveniently transmitted to the rear bumper beam and the longitudinal beam 7 forwards, and the dragging performance of the vehicle is ensured.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The drag reinforcement structure is characterized by comprising a rear bumper beam, an installation seat (3) and a drag head (4), wherein the rear bumper beam is connected between two longitudinal beams (7), the installation seat (3) is connected below the rear bumper beam, and the drag head (4) is connected to the rear side of the installation seat (3);

The lower cladding of two rear bumper crossbeam has down package board (21), rear bumper crossbeam includes two front and back interval settings, just is located crossbeam body (2) in package board (21) down, the front and back side reason of package board (21) respectively extend to with the lateral wall of crossbeam body (2) links to each other, mount pad (3) connect in the below of package board (21) down.

2. The towing stiffening structure according to claim 1, wherein the upper part of the rear bumper beam is further covered with an upper cladding plate (22), the rear side edge of the upper cladding plate (22) extending downward and being connected to the rear side wall of the lower cladding plate (21) on the rear side.

3. The towing stiffening structure according to claim 2, characterized in that the upper cladding plate (22) is provided with stiffening ribs (23) protruding backwards, which stiffening ribs (23) extend in the course of the cross-beam body (2).

4. The towing reinforcement structure as claimed in claim 1, characterized in that the mounting base (3) includes a reinforcement plate (32) connected to the lower part of the rear bumper beam and a sleeve (31) connected to the lower part of the reinforcement plate (32), the sleeve (31) being adapted to be fitted around the outer periphery of the towing head (4), the towing head (4) being hinged in the sleeve (31) by a hinge shaft (33) extending in the left-right direction, the bottom of the sleeve (31) being screwed with a locking member (34) extending upward and abutting against the bottom of the towing head (4).

5. The towing strengthening structure according to claim 4, wherein the strengthening plate (32) is connected with support columns (24) extending upwards into the beam body (2), the support columns (24) are arranged in two groups at intervals along the front-rear direction, and each group of support columns (24) comprises at least two support columns (24) penetrating through the lower wrapping plate (21) and extending into the same beam body (2).

6. The towing strengthening structure as claimed in claim 5, wherein two side uprights (35) extending downwards are connected to the bottom surface of the strengthening plate (32) and located on both sides of the sleeve (31), the inner side walls of the side uprights (35) being connected to the outer side walls of the sleeve (31).

7. The towing strengthening structure as claimed in any one of claims 1-6, wherein the end parts of the rear bumper beams are connected to the longitudinal beams (7) through connecting plates (1), the plate surfaces of the connecting plates (1) are perpendicular to the rear bumper beams, upper diagonal braces (5) connected with the connecting plates (1) are arranged above the rear bumper beams, the inner ends of the upper diagonal braces (5) are respectively connected with the top surfaces of the two beam bodies (2), and the outer ends of the upper diagonal braces (5) extend obliquely upwards and are connected with the inner side walls of the connecting plates (1).

8. The towing stiffening structure according to claim 7, characterized in that the front side of the rear cross beam is provided with a front diagonal brace (6) connected to the connecting plate (1), the inner end of the front diagonal brace (6) being connected to the front side wall of the lower cladding plate (21), the outer end of the front diagonal brace (6) extending obliquely forward and being connected to the inner side wall of the connecting plate (1).

9. The towing stiffening structure according to claim 7, characterized in that it further comprises a stiffening leg (11) arranged at the rear end of the longitudinal beam (7), said stiffening leg (11) being arranged inside the longitudinal beam (7) perpendicular to the connecting plate (1), the axial projection of the stiffening leg (11) being located in the connecting plate (1).

10. A vehicle comprising the towing reinforcing structure of any one of claims 1-9.