Automobile rear floor lower cross beam assembly structure

By designing a wire assembly in the under-floor beam assembly of the car's rear floor, the elastic force of the spring is used to achieve the fixing and release of the wire harness, the problem of low maintenance and finishing efficiency of wire harness is solved, and the efficiency of finishing and maintenance is improved.

CN223148535UActive Publication Date: 2025-07-25WUHAN LANGTENG AUTO PARTS CO LTD
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Patent Information

Application Number
CN202422627178.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-07-25
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

The existing automobile rear floor beam assembly line harness is inefficient during the maintenance and finishing process, and the tiring method is cumbersome, which affects the maintenance and finishing efficiency of the wiring harness.

Method used

A lower beam assembly structure is designed including a beam frame, a beam plate and a clamping assembly. The clamping assembly is composed of a base, a first spring, a connecting rod, a press plate and a second spring. The elastic force of the spring is used to fix and release the wiring harness, simplifying the finishing and maintenance process of the wiring harness.

Benefits of technology

It improves the efficiency of wiring harness finishing, reduces the cumbersomeness of wiring harness maintenance, and improves the efficiency of wiring harness maintenance.

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Abstract

The utility model discloses an automobile rear floor lower cross beam assembly structure which comprises a cross beam frame, a cross beam plate and a wire clamping assembly, the cross beam frame is fixed on the cross beam plate, the wire clamping assembly comprises a base, a first spring, a connecting rod, a pressing plate and a second spring, the connecting rod penetrates through the base and is connected with the side face of the cross beam frame, and the pressing plate is fixed on the base. The base is located above the cross beam plate and slidably connected with the connecting rod, the connecting rod is sleeved with the first spring, one end of the first spring abuts against the base, the other end of the first spring abuts against the cross beam frame, the first spring pulls the base to be close to one side of the cross beam frame under the action of elastic force, and the pressing plate is slidably connected to the base and can slide towards one side of the cross beam frame. The second spring is located between the base and the pressing plate, one end of the second spring abuts against the base, the other end of the second spring abuts against the pressing plate, and the second spring pushes the pressing plate to be close to one side of the beam frame under the action of elastic force.
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Description

Technical Field

[0001] The utility model relates to the technical field of the lower cross beam of an automobile rear floor, and particularly relates to a structure of an assembly of the lower cross beam of an automobile rear floor. Background Art

[0002] The assembly of the lower cross beam of an automobile is a key component in the vehicle chassis structure. The lower cross beam assembly is not only used to bear the weight of the vehicle body itself, but also for some automobiles to improve the aesthetic appearance of vehicle wiring. The vehicle wiring harness is attached to the lower cross beam for wiring. In order to improve the degree of fit between the wiring harness and the lower cross beam, a plurality of cable ties are required to bundle the wiring harness on the lower cross beam. When using the method of bundling with cable ties, during the later maintenance of the wiring harness, the cable ties need to be cut to perform corresponding maintenance operations on each wiring harness respectively, and after the maintenance is completed, new cable ties are required to rebundle the wiring harness on the lower cross beam, which seriously affects the maintenance efficiency of the automobile wiring harness. At the same time, the process of rebundling the wiring harness is cumbersome, affecting the sorting efficiency of the wiring harness. Content of the Utility Model

[0003] In order to solve the problem that the existing lower cross beam assembly cannot efficiently maintain and sort the wiring harness, the utility model provides a structure of an assembly of the lower cross beam of an automobile rear floor.

[0004] In order to solve the above technical problems, the utility model provides a structure of an assembly of the lower cross beam of an automobile rear floor. The lower cross beam assembly structure includes a cross beam frame, a cross beam plate, and a wire clamping assembly. The cross beam frame is fixed on the cross beam plate. The wire clamping assembly includes a base, a first spring, a connecting rod, a pressing plate, and a second spring. The connecting rod passes through the base and is connected to the side surface of the cross beam frame. The base is located above the cross beam plate and is slidably connected to the connecting rod. The first spring is sleeved on the connecting rod, and one end abuts against the base, and the other end abuts against the cross beam frame. Under the action of elastic force, the first spring pulls the base to approach one side of the cross beam frame. The pressing plate is slidably connected to the base and can slide towards one side of the cross beam frame. The second spring is located between the base and the pressing plate, and one end abuts against the base, and the other end abuts against the pressing plate. Under the action of elastic force, the second spring pushes the pressing plate to approach one side of the cross beam frame.

[0005] In an embodiment of the utility model, the base is in a U shape. The base includes an L-shaped bracket and a cover plate. The L-shaped bracket includes a first support plate and a second support plate that are perpendicular to each other. The first support plate is attached to the cross beam plate. The connecting rod passes through the first support plate and is connected to the cross beam frame. The cover plate is slidably connected to the second support plate and can slide towards one side of the cross beam frame.

[0006] In an embodiment of the present utility model, a limiting clamping post and a limiting plate are fixedly connected to the second support plate. The limiting clamping post is fixed between the limiting plate and the second support plate. A limiting clamping groove is formed on the cover plate. Sliding the cover plate enables the limiting clamping post to be clamped at different positions of the limiting clamping groove.

[0007] In an embodiment of the present utility model, the limiting clamping post includes a main body portion and a clamping portion. The clamping portion protrudes from both sides of the main body portion. The limiting clamping groove includes a main body groove and a clamping groove. The clamping grooves are arranged in an array along the length direction of the main body groove. The main body portion is slidably connected to the main body groove, and the clamping portion is clamped and connected to the clamping groove.

[0008] In an embodiment of the present utility model, two connecting rods and two first springs are provided. Insertion holes for inserting the connecting rods are formed on both the left and right sides of the first support plate. The first support plate is slidably connected to both of the connecting rods at the same time. The two first springs are respectively sleeved on the two connecting rods.

[0009] In an embodiment of the present utility model, the connecting rod is a bolt, and the connecting rod is threadedly connected to the cross beam frame. The size of the insertion hole is larger than the diameter of the connecting rod.

[0010] In an embodiment of the present utility model, a protruding T-shaped block is provided at the bottom of the pressing plate. A T-shaped groove for sliding the T-shaped block is formed on the surface of the first support plate.

[0011] In an embodiment of the present utility model, four second springs are provided. The four second springs are respectively located around the pressing plate.

[0012] In an embodiment of the present utility model, the length of the cover plate is greater than the length of the first support plate. Support angle plates for supporting the cover plate are provided on the side of the second support plate away from the pressing plate. Two support angle plates are provided, and the two support angle plates are respectively fixed on both sides of the width of the second support plate.

[0013] In an embodiment of the present utility model, a buffer pad is provided on the surface of the pressing plate away from the second spring.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] By installing the wire clamping assembly on the crossbeam plate and connecting it to the crossbeam frame, when organizing the wire harness, only by pulling the base and increasing the distance between the base and the crossbeam frame, the wire harness can be placed between the base and the crossbeam frame, and under the action of the first spring, the second spring and the pressing plate, the wire harness is squeezed and fixed, improving the efficiency of wire harness organization. At the same time, when overhauling the wire harness subsequently, only by pulling the base again to release the extrusion of the wire harness by the base, the maintenance personnel can take out the wire harness from the lower crossbeam assembly, reducing the complexity during wire harness maintenance and improving the maintenance efficiency. Brief Description of the Drawings

[0016] The drawings are used to provide a further understanding of the embodiments of the present invention, and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present invention, but do not constitute a limitation to the embodiments of the present invention. In the drawings:

[0017] Figure 1 is a perspective structural view of the lower crossbeam assembly provided by the embodiment of the present invention;

[0018] Figure 2 is Figure 1 an enlarged view of part A in

[0019] Figure 3 is an exploded structural view of the wire clamping assembly in the lower crossbeam assembly provided by the embodiment of the present invention.

[0020] Description of the Reference Numerals

[0021] 1. Lower crossbeam assembly structure; 11. Crossbeam frame; 12. Crossbeam plate; 13. Wire clamping assembly; 131. Base; 132. First spring; 133. Connecting rod; 134. Pressing plate; 135. Second spring; 1311. First support plate; 1312. Second support plate; 1313. Cover plate; 1314. Limit clamping column; 1315. Limit plate; 1316. Limit card slot; 1317. Main body part; 1318. Clamping part; 1319. Main body groove; 1310. Clamping groove; 1341. T-shaped block; 13111. T-shaped groove; 13121. Support angle plate. Detailed Description of the Embodiment

[0022] The following will describe in detail the specific embodiments of the present invention with reference to the drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0023] Please refer to Figures 1 - 3, in order to solve the problems in the prior art, the present utility model provides an underbody crossbeam assembly structure 1 for an automobile. The underbody crossbeam assembly structure 1 includes a crossbeam frame 11, a crossbeam plate 12 and a wire clamping assembly 13. The crossbeam frame 11 is fixed on the crossbeam plate 12. The wire clamping assembly 13 includes a base 131, a first spring 132, a connecting rod 133, a pressing plate 134 and a second spring 135. The connecting rod 133 passes through the base 131 and is connected to the side surface of the crossbeam frame 11. The base 131 is located above the crossbeam plate 12 and is slidably connected to the connecting rod 133. The first spring 132 is sleeved on the connecting rod 133, and one end abuts against the base 131, and the other end abuts against the crossbeam frame 11. Under the action of elastic force, the first spring 132 pulls the base 131 to approach one side of the crossbeam frame 11. The pressing plate 134 is slidably connected to the base 131 and can slide towards one side of the crossbeam frame 11. The second spring 135 is located between the base 131 and the pressing plate 134, and one end abuts against the base 131, and the other end abuts against the pressing plate 134. Under the action of elastic force, the second spring 135 pushes the pressing plate 134 to approach one side of the crossbeam frame 11.

[0024] By installing the wire clamping assembly 13 on the crossbeam plate 12 and connecting it to the crossbeam frame 11, when sorting the automobile wiring harness, the wiring harness can be clamped in the wire clamping assembly 13, so as to fix the wiring harness under the action of the wire clamping assembly 13 and improve the aesthetics of vehicle wiring.

[0025] When using the wire clamping assembly 13 to sort the wiring harness, by pulling the base 131, the first spring 132 is stretched by the base 131, and at the same time, the distance between the base 131 and the crossbeam frame 11 is increased. Then, the wiring harness is placed in the gap between the base 131 and the crossbeam frame 11, and the pressing plate 134 is made to fit the wiring harness. When the number of wiring harnesses is too large or the diameter of the wiring harness is too large, the wiring harness squeezes the pressing plate 134 to slide on the base 131 and compress the second spring 135, so that the distance between the pressing plate 134 and the crossbeam frame 11 is increased again, so that the wire clamping assembly 13 can sort more wiring harnesses.

[0026] After all the wiring harnesses are placed in the position between the pressing plate 134 and the crossbeam frame 11, by releasing the base 131, the base 131 is pulled towards one side of the crossbeam frame 11 under the elastic recovery of the first spring 132. When the base 131 moves to the limit position close to the crossbeam frame 11 and at this time the wiring harness does not fit the side surface of the crossbeam frame 11, at this time, under the action of the elastic release of the second spring 135, the pressing plate 134 can be pressurized to continue to move towards one side of the crossbeam frame 11 until the wiring harness is simultaneously squeezed and fixed by the pressing plate 134 and the crossbeam frame 11, and the sorting of the wiring harness can be completed.

[0027] Compared with the wire harness arrangement methods in the prior art, when arranging the wire harness with the lower crossbeam assembly structure 1 of the present utility model, only need to pull the base 131 and increase the distance between the base 131 and the crossbeam frame 11, then the wire harness can be placed between the base 131 and the crossbeam frame 11, and under the action of the first spring 132, the second spring 135 and the pressing plate 134, the wire harness is squeezed and fixed, improving the efficiency of wire harness arrangement. At the same time, when subsequently overhauling the wire harness, only need to pull the base 131 again to release the extrusion of the wire harness by the base 131, so that the maintenance personnel can take out the wire harness from the lower crossbeam assembly, reducing the complexity during wire harness overhaul and improving the overhaul efficiency.

[0028] In an embodiment of the present utility model, the base 131 is in a U shape. The base 131 includes an L-shaped bracket and a cover plate 1313. The L-shaped bracket includes a first support plate 1311 and a second support plate 1312 that are perpendicular to each other. The first support plate 1311 is attached to the crossbeam plate 12. The connecting rod 133 passes through the first support plate 1311 and is connected to the crossbeam frame 11 to provide guidance for the sliding of the base 131 under the action of the connecting rod 133, preventing the base 131 from deviating when sliding on the crossbeam plate 12. At the same time, under the action of the connecting rod 133, it provides guidance for the first spring 132 to prevent the first spring 132 from detaching from between the base 131 and the crossbeam frame 11. The cover plate 1313 is slidably connected to the second support plate 1312 and can slide toward one side of the crossbeam frame 11. When arranging the wire harness, the slide plate can be first slid away from the second bracket to facilitate the wire harness to be placed into the wire clamping assembly 13 from the position between the second bracket and the crossbeam frame 11, and then the slide plate is slid in the reverse direction to provide a limit for the upper part of the wire harness under the action of the slide plate, preventing the wire harness from detaching from the wire clamping assembly 13.

[0029] In an embodiment of the present utility model, a fixed connection limiting clamping post 1314 and a limiting plate 1315 are provided on the second support plate 1312. The limiting clamping post 1314 is fixed between the limiting plate 1315 and the second support plate 1312. A limiting clamping groove 1316 is formed on the cover plate 1313. By sliding the cover plate 1313, the limiting clamping post 1314 can be clamped at different positions of the limiting clamping groove 1316. When arranging the wire harness, the cover plate 1313 can be slid according to the overall diameter of the wire harness and the position of the cover plate 1313 can be adjusted to facilitate the wire harness to be placed into the wire clamping assembly 13 from one side of the cover plate 1313, and then the cover plate 1313 is slid in the reverse direction to prevent the wire harness from detaching from the wire clamping assembly 13 under the action of the cover plate 1313.

[0030] In an embodiment of the present utility model, the limit clamping post 1314 includes a main body portion 1317 and a clamping portion 1318. The clamping portion 1318 protrudes from both sides of the main body portion 1317. The limit clamping groove 1316 includes a main body groove 1319 and a clamping groove 1310. The clamping grooves 1310 are arranged in an array along the length direction of the main body groove 1319. The main body portion 1317 is slidably connected to the main body groove 1319, and the clamping portion 1318 is clamped and connected to the clamping groove 1310, so that the cover plate 1313 slides relative to the second bracket under the action of the main body portion 1317 and the main body groove 1319, and under the action of the clamping portion 1318 and the clamping groove 1310, the cover plate 1313 can be fixed at different positions of the second bracket, so as to adjust the size of the opening at the top of the second bracket by the cover plate 1313 to adapt to the overall diameter of the wire harness, and improve the efficiency of wire harness arrangement.

[0031] In an embodiment of the present utility model, two connecting rods 133 and two first springs 132 are provided. Insertion holes for inserting the connecting rods 133 are formed on both the left and right sides of the first support plate 1311. The first support plate 1311 is slidably connected to the two connecting rods 133 at the same time. The two first springs 132 are respectively sleeved on the two connecting rods 133, so as to provide support for the sliding of the first support plate 1311 under the combined action of the two connecting rods 133, and at the same time, under the action of the two first springs 132, the base 131 is pulled to slide along the connecting rod 133, improving the sliding stability of the base 131.

[0032] In an embodiment of the present utility model, the connecting rod 133 is a bolt, and the connecting rod 133 is threadedly connected to the cross beam frame 11, so as to install the base 131 on the cross beam frame 11 under the action of the connecting rod 133. The size of the insertion hole is larger than the diameter of the connecting rod 133, so that the first support rod can slide on the connecting rod 133 under the action of the insertion hole, thereby realizing the adjustment of the distance between the base 131 and the cross beam frame 11, facilitating the placement of the wire harness at the position between the cross beam frame 11 and the base 131, and under the action of the first spring 132, the second spring 135 and the pressing plate 134, the wire harness is squeezed and fixed, realizing the rapid arrangement of the wire harness.

[0033] In an embodiment of the present utility model, a protruding T-shaped block 1341 is provided at the bottom of the pressing plate 134, and a T-shaped groove 13111 for the T-shaped block 1341 to slide is formed on the surface of the first support plate 1311, so that the pressing plate 134 slides along the first support plate 1311 through the T-shaped block 1341 and the T-shaped groove 13111, thereby adjusting the distance between the pressing plate 134 and the cross beam frame 11, enabling the pressing plate 134 to squeeze the wire harness against the side surface of the cross beam frame 11 under the action of the second spring 135, thus realizing the rapid arrangement of the wire harness.

[0034] In the embodiment of the present utility model, four second springs 135 are provided. The four second springs 135 are respectively located around the pressing plate 134, so as to press the pressing plate 134 under the action of the four second springs 135, and make the pressing plate 134 press the wire harness against the surface of the cross beam frame 11, improving the firmness of the wire harness arrangement and preventing the wire harness from detaching from the wire clamping assembly 13.

[0035] In the embodiment of the present utility model, the pulling force of the first spring 132 is greater than the elastic force of the second spring 135. After the first spring 132 pulls the base 131 close to the cross beam frame 11, the second spring 135 presses the pressing plate 134 towards the cross beam frame 11, and makes the pressing plate 134 press the wire harness against the cross beam frame 11, improving the extrusion stability of the wire clamping assembly 13 on the wire harness.

[0036] In the embodiment of the present utility model, the length of the cover plate 1313 is greater than the length of the first support plate 1311. Support angle plates 13121 for supporting the cover plate 1313 are arranged on the side of the second support plate 1312 away from the pressing plate 134. Two support angle plates 13121 are provided, and the two support angle plates 13121 are respectively fixed on both sides of the width of the second support plate 1312, so as to provide support for the bottom of the cover plate 1313 by the support angle plates 13121 when the cover plate 1313 slides along the second support plate 1312, preventing the cover plate 1313 from slipping off the second support plate 1312.

[0037] In the embodiment of the present utility model, a buffer pad is arranged on the surface of the pressing plate 134 away from the second spring 135, so that the buffer pad contacts the wire harness, preventing rigid contact between the pressing plate 134 and the wire harness and causing damage to the wire harness.

[0038] In the present utility model, unless otherwise clearly defined and limited, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. The first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. Therefore, it should not be construed as a limitation to the present utility model.

[0039] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, including the combination of each specific technical feature in any suitable manner. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods. However, these simple modifications and combinations should also be regarded as the content disclosed by the present utility model and all fall within the protection scope of the present utility model.

[0040] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as a limitation to the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. An assembly structure of a rear floor under beam for an automobile, characterized in that, The structure of the lower crossbeam assembly includes a crossbeam frame, a crossbeam plate, and a wire clamping assembly. The crossbeam frame is fixed on the crossbeam plate. The wire clamping assembly includes a base, a first spring, a connecting rod, a pressing plate, and a second spring. The connecting rod passes through the base and is connected to the side surface of the crossbeam frame. The base is located above the crossbeam plate and is slidably connected to the connecting rod. The first spring is sleeved on the connecting rod, with one end abutted against the base and the other end abutted against the crossbeam frame. Under the action of elastic force, the first spring pulls the base to approach one side of the crossbeam frame. The pressing plate is slidably connected to the base and can slide towards one side of the crossbeam frame. The second spring is located between the base and the pressing plate, with one end abutted against the base and the other end abutted against the pressing plate. Under the action of elastic force, the second spring pushes the pressing plate to approach one side of the crossbeam frame.

2. The structure of the rear floor underbeam assembly of an automobile according to claim 1, wherein The base is in a U shape and includes an L-shaped bracket and a cover plate. The L-shaped bracket includes a first support plate and a second support plate that are perpendicular to each other. The first support plate is attached to the crossbeam plate. The connecting rod passes through the first support plate and is connected to the crossbeam frame. The cover plate is slidably connected to the second support plate and can slide towards one side of the crossbeam frame.

3. The structure of the rear floor under beam assembly of an automobile according to claim 2, characterized in that, A limiting clamping post and a limiting plate are fixedly connected to the second support plate. The limiting clamping post is fixed between the limiting plate and the second support plate. A limiting clamping groove is formed on the cover plate. Sliding the cover plate can make the limiting clamping post be clamped at different positions of the limiting clamping groove.

4. The structure of a rear floor underbeam assembly for an automobile according to claim 3, characterized in that, The limiting clamping post includes a main body part and a clamping part. The clamping part protrudes from both sides of the main body part. The limiting clamping groove includes a main body groove and a clamping groove. The clamping grooves are arranged in an array along the length direction of the main body groove. The main body part is slidably connected to the main body groove, and the clamping part is clamped and connected to the clamping groove.

5. The structure of an underbody cross member assembly for an automobile according to claim 2, characterized in that, Both the connecting rod and the first spring are provided with two. Insertion holes for inserting the connecting rod are formed on both the left and right sides of the first support plate. The first support plate is slidably connected to both connecting rods at the same time. The two first springs are respectively sleeved on the two connecting rods.

6. The structure of an underbody cross member assembly for a vehicle rear floor according to claim 5, characterized in that, The connecting rod is a bolt, and the connecting rod is threadedly connected to the crossbeam frame. The size of the insertion hole is larger than the diameter of the connecting rod.

7. The structure of an underbody cross member assembly for an automobile according to claim 2, characterized in that, A protruding T-shaped block is provided at the bottom of the pressing plate. A T-shaped groove for the T-shaped block to slide is formed on the surface of the first support plate.

8. The structure of a rear floor under beam assembly of an automobile according to claim 7, characterized in that, Four second springs are provided, and the four second springs are respectively located around the pressing plate.

9. The structure of an underbody cross member assembly for an automobile rear floor according to claim 7, characterized in that, The length of the cover plate is greater than the length of the first support plate. A supporting angle plate for supporting the cover plate is provided on the side surface of the second support plate away from the pressing plate. There are two supporting angle plates, and the two supporting angle plates are respectively fixed on both sides of the width of the second support plate.

10. A structure of an underbody cross member assembly for an automobile according to claim 7, characterized in that, A buffer pad is provided on the surface of the pressing plate away from the second spring.