Platform pickup truck rear floor structure
By designing the platform-based pickup rear floor structure, including the split fourth beam and adjustment section, the problem of difficult platform sharing of the existing pickup rear floor is solved, and the effect of high generalization and design flexibility is achieved.
Patent Information
- Application Number
- CN202421476272.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing pickup truck rear floor is difficult to share the platform, which leads to high development difficulty, long cycle, high cost, weak design flexibility, and cannot be adapted according to different wheelbases and vehicle widths.
A platform-based pickup rear floor structure is designed, including a split fourth beam, a rear floor panel, a rear seat beam assembly, a longitudinal beam, etc. The adaptation of different models is achieved through the design of adjustment sections and reinforcement plates.
It realizes the high-versatility of the rear floor system, reduces the development change, shortens the development cycle, reduces development investment, and improves the flexibility of the design.
Smart Images
Figure CN222555023U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pickup truck manufacturing, in particular to a platform pickup truck rear floor structure. Background Art
[0002] The pickup truck market is highly competitive, with new models emerging one after another. A development model with low investment, high quality and short cycle can enable OEMs to quickly respond to market demand, speed up product launch, quickly improve the product matrix and maintain market share. However, the existing pickup truck rear floors are mostly dedicated to special vehicles, making it difficult to achieve platform sharing, difficult to develop, long cycle, high cost, weak design flexibility, and unable to adapt to different wheelbases and vehicle widths. Therefore, how to realize the platformization of the pickup truck rear floor is of great significance to the rapid prototyping of complete vehicle products, shortening the development cycle, and saving mold development investment. Summary of the invention
[0003] In view of this, the utility model proposes a platform pickup truck rear floor structure, which minimizes the variation of the rear floor system, has a high degree of commonality, a short development cycle, and reduces development investment.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] The platform pickup truck rear floor structure described in the utility model includes a rear floor panel, a rear seat crossbeam assembly, a left longitudinal beam, a right longitudinal beam and a fourth crossbeam assembly, the fourth crossbeam assembly is welded on the bottom surface of the rear end portion of the rear floor panel, and includes a fourth crossbeam, the fourth crossbeam is a split structure, which has a middle section beam and a left section beam and a right section beam welded on both sides of the middle section beam, the middle section beam, the left section beam or the right section beam has a first adjustment section with equal cross-section; both ends of the left section beam and the right section beam are provided with a suspension reinforcement plate and a first seat reinforcement plate, and a jack reinforcement plate, a fourth crossbeam reinforcement plate, a retractor reinforcement plate and a second seat reinforcement plate are welded on the middle section beam from left to right in sequence, the jack reinforcement plate, the retractor reinforcement plate and the second seat reinforcement plate are all U-shaped structures, and the first seat reinforcement plate and the retractor reinforcement plate have the same structure.
[0006] The beneficial effect is that the fourth cross beam of the utility model is a split structure. By designing a first adjustment section on the left beam, the middle beam or the right beam, the requirements of different vehicle models can be met by adjusting the length of the first adjustment section. In actual processing, the first adjustment section is preferably formed as one piece with the middle beam. The first seat reinforcement plate and the retractor reinforcement plate have the same structure and are universal, thereby maximizing the platformization of the fourth cross beam.
[0007] Preferably, the first seat reinforcement plate is a U-shaped structure with an opening pointing to the inner cavity of the fourth beam, and each end thereof has a first welding edge matched with the flange of the fourth beam and a pair of second welding edges matched with the side surface of the fourth beam; the fourth beam reinforcement plate is welded together inside the middle beam, and its right end extends rightward to the right side of the retractor reinforcement plate. The beneficial effect is that the first seat reinforcement plate and the retractor reinforcement plate of the utility model adopt a U-shaped structure and have welding edges, which are convenient for welding and can ensure strength.
[0008] Preferably, the rear seat crossbeam assembly is arranged at the step of the rear floor panel, and includes a rear seat crossbeam, a left reinforcing plate, a middle reinforcing plate and a right reinforcing plate, the rear seat crossbeam is an L-shaped structure, the left reinforcing plate and the right reinforcing plate are respectively welded to the left end and the right end of the inner side of the rear seat crossbeam; a mounting opening is provided in the middle of the rear seat crossbeam, the middle reinforcing plate is a triangular box body structure and is welded on the inner side of the mounting opening, and the opening direction of the middle reinforcing plate points to the mounting opening; the left reinforcing plate and the right reinforcing plate have the same structure, both of which are triangular pyramid box body structures, and the middle reinforcing plate is a triangular box body structure.
[0009] The beneficial effects are: the rear seat crossbeam of the utility model is universal. When the seat installation point is changed, it is only necessary to change the connecting edge structure of the left and right reinforcing plates and the floor panel; when the seat segmentation state is changed, it is only necessary to adjust the matching position of the middle reinforcing plate and the rear seat crossbeam in the Y direction, thereby retaining the rear seat crossbeam and realizing the platformization of the rear seat crossbeam.
[0010] Preferably, the front part of the rear floor panel has a second adjustment section with a uniform cross section; the left and right sides of the rear part of the rear floor panel are respectively welded with a left sill inner plate and a right sill inner plate, and the left and right ends of the fourth cross beam are respectively welded with the left and right sill inner plates; a left connecting plate is also welded between the left sill inner plate and the rear floor panel, and a right connecting plate is welded between the right sill inner plate and the rear floor panel, and the left connecting plate and the right connecting plate have the same structure, both of which are box structures; the front part of the left sill inner plate has a third adjustment section with a uniform cross section. The beneficial effect is that the rear floor panel of the utility model has a second adjustment section, which can meet the needs of long wheelbase models and short wheelbase models; the left sill inner plate has a third adjustment section, which can meet the installation requirements between the left sill inner plate and the rear floor of different models.
[0011] Preferably, the left longitudinal beam and the right longitudinal beam are spaced apart at the bottom of the rear floor panel, and both the left longitudinal beam and the right longitudinal beam are segmented structures, and the rear end of the front section of the left longitudinal beam or the front part of the rear section of the left longitudinal beam and the rear end of the front section of the right longitudinal beam or the front part of the rear section of the left longitudinal beam are integrally formed with a fourth adjustment section.
[0012] The beneficial effects are as follows: the longitudinal beam is a split structure, and the front section and the rear section of the longitudinal beam are welded together. Since the front section or the rear section of the longitudinal beam has an adjustment section, the requirements of different wheelbase models can be met by changing the length of the adjustment section. In actual processing, in order to reduce investment, the utility model designs the adjustment section at the front section of the longitudinal beam, which is integrally formed with the front section of the longitudinal beam, and only a new trimming mold is needed to reduce investment. In actual installation, the front section of the longitudinal beam is screwed to the front floor beam of the front floor assembly, and the rear section is welded to the fourth beam. The two longitudinal beams, the front floor beam and the fourth beam are connected to form a frame structure, which is beneficial to the strength of the cab and the transmission of force during collision.
[0013] Preferably, a pair of seat belt buckle mounting plate assemblies are arranged on the rear floor panel between the left longitudinal beam and the right longitudinal beam, and the seat belt buckle mounting plate assembly includes a mounting plate, one side of the mounting plate is integrally formed with a third welding edge that matches the fourth cross beam, and the other side has a fourth welding edge that matches the left longitudinal beam or the right longitudinal beam; nuts are connected to the mounting plate through a bottom plate. The beneficial effect is that the mounting plate of the utility model is welded to the rear floor panel, welded to the fourth cross beam through the third welding edge, and welded to the longitudinal beam through the fourth welding edge, with a large force bearing area and good strength, and there is no characteristic plane at the overlap of the rear floor panel and the mounting plate, and the seat belt buckle mounting plate assembly can be adjusted within the range specified by regulations for the seat belt buckle mounting point.
[0014] Compared with the prior art, the advantages of the utility model are: the fourth crossbeam of the utility model is a split structure, and by designing a first adjustment section on the left section beam, the middle section beam or the right section beam, the length of the first adjustment section can be controlled (cut) to meet the needs of different vehicle models; in actual processing, the first adjustment section is preferably formed in one piece with the middle section beam. The first seat reinforcement plate and the retractor reinforcement plate of the utility model have the same structure and are universal, thereby maximizing the platformization of the fourth crossbeam. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] Figure 2 It is an axonometric drawing of the utility model.
[0017] Figure 3 It is a top view of the utility model.
[0018] Figure 4 It is a structural schematic diagram of the rear floor panel of the utility model.
[0019] Figure 5 It is a schematic diagram of the fourth crossbeam assembly of the utility model.
[0020] Figure 6It is a schematic diagram of the left door sill inner plate of the utility model.
[0021] Figure 7 It is a schematic diagram of the rear seat crossbeam of the utility model.
[0022] Figure 8 It is a schematic diagram of the three reinforcement plates on the rear seat cross member.
[0023] Fig. 9 It is a schematic diagram of the left longitudinal beam and the right longitudinal beam of the utility model.
[0024] Fig.10 It is a schematic diagram of the safety belt buckle mounting plate assembly of the utility model. DETAILED DESCRIPTION
[0025] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.
[0026] It should be noted that, in the description of the present utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.
[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0028] like Figure 1-10 As shown, the platform pickup truck rear floor structure described in the utility model includes a rear floor panel 1, a rear seat crossbeam assembly 2, a left longitudinal beam 3, a right longitudinal beam 4 and a fourth crossbeam assembly 5. The fourth crossbeam assembly 5 is welded on the bottom surface of the rear end of the rear floor panel 1, and includes a fourth crossbeam 5.1. The fourth crossbeam 5.1 is a split structure. The fourth crossbeam 5.1 has a middle section beam 5.1a and a left section beam 5.1b and a right section beam 5.1c welded on both sides of the middle section beam 5.1a. The left section beam 5.1b and the right section beam 5.1c are symmetrical in structure. A first adjustment section T1 of equal cross section is integrally formed at one end of the middle section beam 5.1a, which can be cut according to the vehicle model requirements, and then the left section beam 5.1b, the right section beam 5.1c and the middle section beam 5.1a are welded together to meet the requirements of different vehicle models.
[0029] The two ends of the left section beam 5.1b and the right section beam 5.1c are welded with a suspension reinforcement plate 5.2 and a first seat reinforcement plate 5.3; the first seat reinforcement plate on the left side and the first seat reinforcement plate on the right side have the same structure, which reduces the investment in mold development; the suspension reinforcement plate on the left side and the suspension reinforcement plate on the right side can be flexibly adjusted according to the vehicle model requirements;
[0030] The jack reinforcement plate 5.4, the fourth cross beam reinforcement plate 5.5, the retractor reinforcement plate 5.6 and the second seat reinforcement plate 5.7 are welded on the middle beam 5.1a from left to right. The jack reinforcement plate 5.4, the retractor reinforcement plate 5.6 and the second seat reinforcement plate 5.7 are all U-shaped structures. Each end of the jack reinforcement plate 5.4 has two Z-direction flanges and a horizontal weld edge. The Z-direction flange is welded inside the fourth cross beam 5.1, and the horizontal weld edge is welded to the fourth cross beam 5.1. On the top flange; the first seat reinforcement plate 5.3 and the retractor reinforcement plate 5.6 (i.e. the seat belt retractor reinforcement plate 5.6) are U-shaped structures with openings pointing to the inner cavity of the fourth cross beam 5.1, and each end thereof has a first welding edge a that matches the top flange of the fourth cross beam 5.1 and a pair of second welding edges b that match the side of the fourth cross beam 5.1; the fourth cross beam reinforcement plate 5.5 is welded together inside the middle section beam 5.1a, and its right end extends rightward to the right side of the retractor reinforcement plate 5.6. The first seat reinforcement plate 5.3 and the retractor reinforcement plate 5.6 adopt a U-shaped structure and have welding edges, which are convenient for welding and can ensure strength.
[0031] Combination Figure 5 It can be seen that the fourth cross beam 5.1 of the utility model is a split structure. By designing a first adjustment section T1 on the left section beam 5.1b, the middle section beam 5.1a or the right section beam 5.1c, the length of the first adjustment section T1 can be controlled (cut) to meet the needs of different vehicle models.
[0032] In actual processing, the first adjustment section T1 is preferably formed integrally with the middle section beam 5.1a; the first seat reinforcement plate 5.3 and the retractor reinforcement plate 5.6 have the same structure and are universal, which minimizes the mold development investment cost and maximizes the platformization of the fourth cross beam 5.1.
[0033] Combination Figure 1 and Figure 7It can be seen that the rear seat crossbeam assembly 2 is arranged at the step of the rear floor panel 1, which includes a rear seat crossbeam 2.1, a left reinforcing plate 2.2, a middle reinforcing plate 2.3 and a right reinforcing plate 2.4. The rear seat crossbeam 2.1 is an L-shaped structure, and the left reinforcing plate 2.2 and the right reinforcing plate 2.4 are respectively welded to the left end and the right end of the inner side of the rear seat crossbeam 2.1; a mounting opening is arranged in the middle of the rear seat crossbeam 2.1, the middle reinforcing plate 2.3 is a triangular box structure and is welded to the inner side of the mounting opening, and the opening direction of the middle reinforcing plate 2.3 points to the mounting opening; the left reinforcing plate 2.2 and the right reinforcing plate 2.4 have the same structure, both of which are triangular pyramid box structures, and the middle reinforcing plate 2.3 is a triangular box structure. The rear seat cross beam 2.1 of the utility model is universal. When the seat installation point is changed, it is only necessary to change the connecting edge structure of the left and right reinforcing plates 2.4 and the floor panel. When the seat segmentation state is changed, it is only necessary to adjust the matching position of the middle reinforcing plate 2.3 and the rear seat cross beam 2.1 in the Y direction. The rear seat cross beam 2.1 is retained, and the platformization of the rear seat measurement is realized.
[0034] Combination Figure 4 It can be seen that the front portion of the rear floor panel 1 has a second adjustment section T2 of equal cross-section, and the length of the second adjustment section T2 can be cut and determined according to the specific vehicle model during actual assembly, thereby meeting the needs of long-wheelbase vehicles and short-wheelbase vehicles, and realizing the platformization of the rear floor panel 1;
[0035] Combination Figure 1-3 and Figure 6 It can be seen that the left and right sides of the rear part of the rear floor panel 1 are respectively welded with the left sill inner plate 6.1 and the right sill inner plate 6.2, and the left and right ends of the fourth cross beam 5.1 are respectively welded with the left sill inner plate 6.1 and the right sill inner plate 6.2; a left connecting plate 6.4 is also welded between the left sill inner plate 6.1 and the rear floor panel 1, and a right connecting plate 6.3 is welded between the right sill inner plate and the rear floor panel 1. The structures of the left connecting plate 6.4 and the right connecting plate 6.3 are the same, both of which are box structures. When the vehicle model changes, only the profile structure interface of the left connecting plate 6.4, the right connecting plate 6.3, the rear floor panel 1, and the sill inner plate needs to be changed; the front part of the left sill inner plate 6.1 and the front part of the right sill inner plate 6.2 both have a third adjustment section T3 with a uniform cross section, and the length of the third adjustment section T3 can be cut according to the actual vehicle model to meet the installation requirements of different vehicle models.
[0036] Combination Figure 2-3 and Fig. 9It can be seen that the left longitudinal beam 3 and the right longitudinal beam 4 are arranged at intervals at the bottom of the rear floor panel 1. The left longitudinal beam 3 and the right longitudinal beam 4 are both segmented structures, each including a front section and a rear section. The front part of the rear section 3.2 of the left longitudinal beam 3 and the front part of the rear section of the right longitudinal beam 4 are both integrally formed with a fourth adjustment section T4. The length of the fourth adjustment section T4 on the two longitudinal beams is adjusted according to different vehicle models to meet the needs of different vehicle models. However, in actual processing, the fourth adjustment section T4 can also be designed at the front section of the left longitudinal beam 3 and the front section of the rear longitudinal beam 4.
[0037] In the utility model, both longitudinal beams are split structures, and the front and rear sections of the longitudinal beams are welded together. Since the front or rear section of the longitudinal beam has an adjustment section, the requirements of different wheelbase models can be met by changing the length of the adjustment section. In actual processing, in order to reduce investment, the utility model designs the adjustment section on the front section of the longitudinal beam, and the adjustment section is integrally formed with the front section of the longitudinal beam, and only a new trimming mold is needed, which reduces investment.
[0038] During actual installation, the front section of the longitudinal beam is screwed to the front floor crossbeam of the front floor assembly, and the rear section is welded to the fourth crossbeam 5.1. The two longitudinal beams, the front floor crossbeam and the fourth crossbeam 5.1 are connected to form a frame structure, which is beneficial to the strength of the cab and the transmission of force during collision.
[0039] Combination Figure 2 and Fig.10 It can be seen that the utility model is provided with a pair of seat belt buckle mounting plate assemblies 7 on the rear floor panel 1 between the left longitudinal beam 3 and the right longitudinal beam 4. The seat belt buckle mounting plate 7 assembly includes a mounting plate 7.1. One side of the mounting plate 7.1 is integrally formed with a third welding edge H1 that matches the fourth cross beam 5.1, and the other side has a fourth welding edge H2 that matches the left longitudinal beam 3 or the right longitudinal beam 4. The mounting plate 7.1 is connected with a nut 7.3 through a bottom plate 7.2. Among them, the mounting plate 7.1 is welded to the rear floor panel 1, and is welded to the fourth cross beam 5.1 through the third welding edge H1, and is welded to the longitudinal beam through the fourth welding edge H2. The force bearing area is large and the strength is good. There is no characteristic plane at the overlap of the rear floor panel 1 and the mounting plate, and the seat belt buckle mounting plate assembly can be adjusted within the range specified by the regulations of the seat belt buckle installation point.
[0040] The installation process of the platform pickup truck rear floor structure described in the utility model is as follows:
[0041] The first step is to adjust the four adjustment sections according to the design dimensions of the vehicle model to ensure that the dimensions of the rear floor panel 1, the longitudinal beam, the fourth cross beam 5.1 and the right door sill inner panel meet the design requirements;
[0042] The second step is to weld the front section and the rear section of the left longitudinal beam 3 together to obtain the left longitudinal beam 3; and weld the front section and the rear section of the right longitudinal beam 4 together to obtain the right longitudinal beam 4;
[0043] The left section beam 5.1b, the middle section beam 5.1a and the right section beam 5.1c of the fourth cross beam 5.1 are welded together, the suspension reinforcement plate 5.2 and the first seat reinforcement plate 5.3 are symmetrically welded at both ends of the fourth cross beam 5.1, and the jack reinforcement plate 5.4, the fourth cross beam reinforcement plate 5.5, the retractor reinforcement plate 5.6 and the second seat reinforcement plate 5.7 are welded from left to right on the middle section beam 5.1a to obtain the fourth cross beam assembly 5;
[0044] Weld the left reinforcing plate 2.2, the right reinforcing plate 2.4 and the middle reinforcing plate 2.3 to the rear seat crossbeam 2.1 respectively;
[0045] Step 3: clamp the rear seat cross beam 2.1 on the rear floor panel 1, and weld the left reinforcing plate 2.2 and the right reinforcing plate 2.4 on the rear seat cross beam 2.1 to the rear floor panel 1 respectively;
[0046] The left longitudinal beam 3, the right longitudinal beam 4 and the two pairs of seat belt buckle mounting plate assemblies 7 are respectively welded to the designed positions of the rear floor panel 1, and the fourth cross beam assembly 5 is welded to the rear end of the rear floor panel 1; the left sill inner plate 6.1 is welded together with the rear floor panel 1 and the fourth cross beam 5.1 by using the left connecting plate 6.4, and the right sill inner plate is welded together with the rear floor panel 1 and the fourth cross beam 5.1 by using the right connecting plate 6.3 to complete the assembly operation.
[0047] The lengths of the fourth crossbeam 5.1, the rear floor panel 1, the longitudinal beam and the right door sill inner panel of the utility model can be adjusted according to the vehicle model, thereby meeting the assembly requirements of different vehicle models and realizing the platformization of the rear floor assembly as much as possible; the utility model can also retain the rear seat crossbeam 2.1, realizing the platformization of the rear seat crossbeam 2.1. The utility model reduces the mold development investment by platformizing each structural part and can also ensure the original assembly efficiency.
[0048] Finally, it should be emphasized that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A platform pickup truck rear floor structure, comprising a rear floor panel, a rear seat crossbeam assembly, a left longitudinal beam, a right longitudinal beam and a fourth crossbeam assembly, characterized in that: The fourth crossbeam assembly is welded on the bottom surface of the rear end portion of the rear floor panel, and includes a fourth crossbeam. The fourth crossbeam is a split structure, which has a middle section beam and a left section beam and a right section beam welded on both sides of the middle section beam, and the middle section beam, the left section beam or the right section beam has a first adjustment section with equal cross-section; both ends of the left section beam and the right section beam are provided with a suspension reinforcement plate and a first seat reinforcement plate, and the middle section beam is welded with a jack reinforcement plate, a fourth crossbeam reinforcement plate, a retractor reinforcement plate and a second seat reinforcement plate in sequence from left to right, the jack reinforcement plate, the retractor reinforcement plate and the second seat reinforcement plate are all U-shaped structures, and the first seat reinforcement plate and the retractor reinforcement plate have the same structure.
2. The platform pickup truck rear floor structure according to claim 1, characterized in that: The first seat reinforcement plate is a U-shaped structure with its opening pointing to the inner cavity of the fourth beam, and each end thereof has a first welding edge that cooperates with the flange of the fourth beam and a pair of second welding edges that cooperate with the side surfaces of the fourth beam; the fourth beam reinforcement plate is welded together inside the middle section beam, and its right end extends to the right to the right side of the retractor reinforcement plate.
3. The platform pickup truck rear floor structure according to claim 1, characterized in that: The rear seat crossbeam assembly is arranged at the step of the rear floor panel, and includes a rear seat crossbeam, a left reinforcing plate, a middle reinforcing plate and a right reinforcing plate. The rear seat crossbeam is an L-shaped structure, and the left reinforcing plate and the right reinforcing plate are respectively welded to the left end and the right end of the inner side of the seat crossbeam; a mounting opening is arranged in the middle of the rear seat crossbeam, and the middle reinforcing plate is a triangular box structure and is welded on the inner side of the mounting opening, and the opening direction of the middle reinforcing plate points to the mounting opening; the left reinforcing plate and the right reinforcing plate have the same structure, both of which are triangular pyramid box structures, and the middle reinforcing plate is a triangular box structure.
4. The platform pickup truck rear floor structure according to claim 1, characterized in that: The front part of the rear floor panel has a second adjustment section with a uniform cross-section; the left and right sides of the rear part of the rear floor panel are respectively welded with a left sill inner plate and a right sill inner plate, and the left and right ends of the fourth cross beam are respectively welded to the left sill inner plate and the right sill inner plate; a left connecting plate is also welded between the left sill inner plate and the rear floor panel, and a right connecting plate is welded between the right sill inner plate and the rear floor panel, and the left connecting plate and the right connecting plate have the same structure, both of which are box structures; the front part of the left sill inner plate has a third adjustment section with a uniform cross-section.
5. The platform pickup truck rear floor structure according to claim 1, characterized in that: The left longitudinal beam and the right longitudinal beam are spaced apart at the bottom of the rear floor panel. Both the left longitudinal beam and the right longitudinal beam are segmented structures. The rear end of the front section of the left longitudinal beam or the front part of the rear section of the left longitudinal beam and the rear end of the front section of the right longitudinal beam or the front part of the rear section of the left longitudinal beam are integrally formed with a fourth adjustment section.
6. The platform pickup truck rear floor structure according to claim 1, characterized in that: A pair of seat belt buckle mounting plate assemblies are arranged on the rear floor panel between the left longitudinal beam and the right longitudinal beam, and the seat belt buckle mounting plate assembly includes a mounting plate, one side of which is integrally formed with a third welding edge that cooperates with the fourth cross beam, and the other side has a fourth welding edge that cooperates with the left longitudinal beam or the right longitudinal beam.