Light truck upper mounting connection device

Abstract

The application discloses a light truck upper loading connecting device, and relates to the technical field of upper loading connection.The light truck upper loading connecting device comprises an upper loading device, the bottom of which is provided with a truck chassis; one end of the truck chassis is connected with the upper loading device through a reversing auxiliary mechanism, and the other end is connected with the upper loading device through an upper loading locking mechanism; one side of the bottom of the upper loading device is further provided with an upper loading supporting mechanism, which is located at the end of the upper loading device provided with the upper loading locking mechanism; the connecting bolt between the supporting leg and the hanging lug is loosened, the supporting leg is lowered to be supported on the ground, and the included angle with the ground is controlled; the top screw is loosened, and the truck chassis is separated from the upper loading device by reversing; during the reversing process, the upper loading locking mechanism is loosened and does not work, the reversing auxiliary mechanism starts to work, and the reversing continues; after the reversing, the truck chassis is completely separated from the upper loading device, the supporting leg and the hanging lug are connected with the connecting bolt, and are installed in the limiting holes of the supporting leg and the support, so that the upper loading device is independently supported on the ground.

Description

Technical Field

[0001] This invention specifically relates to the field of superstructure connection technology, and more specifically to a superstructure connection device for light-duty trucks. Background Technology

[0002] The term "vehicle superstructure" generally refers to other assemblies installed on a Class II vehicle chassis, such as the tank body of a tank mixer truck, the cargo box of a van, and the tipper. As a multi-purpose transportation tool, trucks are widely used in various fields, including logistics, construction, and building materials industries.

[0003] The current method of connecting the superstructure of cargo trucks is mostly based on U-bolt connections with connecting plates for assistance. This method is complex to assemble, difficult to install due to limited working space, and inconvenient to disassemble after installation, requiring the assistance of lifting equipment. In the event of an emergency where the chassis urgently needs to detach from the superstructure, it cannot escape quickly, leading to increased losses. Summary of the Invention

[0004] The purpose of this invention is to provide a connecting device for the superstructure of a light-duty truck, which can improve assembly efficiency. At the same time, this connecting device can quickly replace the superstructure. In the event of an emergency, when the chassis urgently needs to detach from the superstructure, the chassis can escape quickly, thereby reducing property damage; thus solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A light-duty truck superstructure connection device includes a superstructure with a truck chassis mounted on its bottom. One end of the truck chassis is connected to the superstructure via a reversing assist mechanism, and the other end is connected to the superstructure via a superstructure locking mechanism. A superstructure support mechanism is also provided on one side of the bottom of the superstructure, located at the end where the superstructure bottom has the superstructure locking mechanism. The superstructure includes a superstructure frame, on which superstructure crossbeams and superstructure longitudinal beams are welded. Four superstructure locking mechanisms are provided, arranged in pairs on both sides of the truck chassis. The two superstructure locking mechanisms near end A of the superstructure include set screw holes, while the two superstructure locking mechanisms near end B do not include set screw holes. Chassis longitudinal beams are welded to the bottom of the truck chassis.

[0007] The upper locking mechanism further includes an upper locking plate, a lower locking plate, a set screw, a perforated lower locking plate, a longitudinal beam reinforcing rib, a lower locking plate engagement surface, and an upper locking plate engagement surface; the upper locking plate and the lower locking plate are symmetrically arranged on both sides of the upper longitudinal beam and are riveted together; the upper locking plate, the longitudinal beam reinforcing rib, and the upper longitudinal beam are connected together by riveting, and the lower locking plate and the perforated lower locking plate are respectively connected to the chassis longitudinal beam by riveting.

[0008] As a further technical solution of the present invention, the superstructure is located above the truck chassis. When the superstructure moves backward, the meshing surface of the lower locking plate and the meshing surface of the upper locking plate are meshed together. The top screw is installed in the top screw hole to ensure that the superstructure will not move forward or backward under normal vehicle conditions. The top screw hole has an internal thread. Before installing the top screw, a nut is installed on it. After the top screw is installed in place, the nut on the top screw is tightened to prevent loosening.

[0009] As a further technical solution of the present invention, the superstructure support mechanism includes a support, a rotating head, a support leg, and a hanging lug. The superstructure support mechanism can achieve the purpose of separating the superstructure from the chassis, and the superstructure support mechanism can enable the superstructure to be independently supported on the ground.

[0010] As a further technical solution of the present invention, one end of the rotating head is set to a square shape, and the other end is set to a semi-circular head shape, wherein the square end is located inside the support leg and is welded and fixed; the support is riveted and fixed to the rotating head; wherein the support is also welded and fixed to the upper beam and the upper frame; the hanging ear is welded and fixed to the upper beam.

[0011] As a further technical solution of the present invention, when the upper support mechanism is not in working state, the outriggers are retracted and the outriggers are connected to the lugs (204) by bolt connection.

[0012] As a further technical solution of the present invention, the reversing auxiliary mechanism includes a base, which is riveted and fixed to the chassis longitudinal beam; the base is L-shaped and a transmission rod is installed on the inner side of the base; the other end of the transmission rod is sleeved on the rotating shaft and then passes into the reserved hole in the upper longitudinal beam; the rotating shaft and the reinforcing rib are connected by riveting.

[0013] As a further technical solution of the present invention, when the truck chassis is detached from the superstructure, the connecting bolts between the outriggers and the mounting ears are loosened, the outriggers are lowered to support the ground, and the angle with the ground is controlled. The jacking screws are then loosened, and reversing begins, thus detaching the truck chassis from the superstructure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention connects the upper locking plate, longitudinal beam reinforcing ribs, and upper structure longitudinal beams together by riveting, and connects the lower locking plate and perforated lower locking plate to the chassis longitudinal beams by riveting. The upper structure is installed on the truck chassis. The upper structure is moved backward so that the meshing surfaces of the lower locking plate and the upper locking plate mesh together. A set screw is installed in the set screw hole to ensure that the upper structure will not move forward or backward under normal vehicle conditions. The set screw hole has an internal thread. Before installing the set screw, a nut is installed on it. After the set screw is installed in place, the nut on the set screw is tightened to prevent loosening.

[0016] 2. In this invention, the base and chassis longitudinal beam are connected together by riveting; the reinforcing rib is connected to the upper longitudinal beam by welding; the transmission rod is fitted onto the rotating shaft and then inserted into a pre-drilled hole in the upper longitudinal beam, and the rotating shaft is connected to the reinforcing rib by riveting. By controlling the limits, the transmission rod can rotate easily.

[0017] 3. In this invention, the connecting bolts between the outrigger and the lug are loosened, the outrigger is lowered to support the ground, and the angle with the ground is controlled; the set screw is loosened, and the truck chassis is reversed to detach from the superstructure; during the reversing process, the superstructure locking mechanism is released and does not work, the reversing auxiliary mechanism starts to work, and the reversing continues; after reversing, the truck chassis is completely detached from the superstructure, and the removed outrigger and lug connecting bolts are installed in the limiting holes of the outrigger and support, so that the superstructure is independently supported on the ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the upper locking mechanism in this invention;

[0020] Figure 3 In this invention Figure 2 A schematic diagram of the bottom structure;

[0021] Figure 4 This is a schematic diagram showing the locking mechanism between the lower locking plate meshing surface and the upper locking plate meshing surface in this invention.

[0022] Figure 5 This is a schematic diagram of the upper support mechanism in this invention;

[0023] Figure 6 This is a schematic diagram of the reversing assist mechanism in this invention;

[0024] Figure 7 In this invention Figure 4 A schematic diagram of the bottom structure;

[0025] Figure 8 This is a schematic diagram of the rotating shaft in this invention;

[0026] Figure 9 This is a schematic diagram of the normal locking state of the truck in this invention;

[0027] Figure 10 This is a schematic diagram showing the truck chassis starting to detach from the superstructure in this invention;

[0028] Figure 11 This is a schematic diagram illustrating the process of detaching the truck chassis from the superstructure in this invention;

[0029] Figure 12 This is a schematic diagram of the truck chassis after it has been detached from the superstructure in this invention.

[0030] In the diagram: 1. Upper structure locking mechanism; 101 Upper locking plate; 102 Lower locking plate; 103 Set screw; 104 Lower locking plate with holes; 105 Longitudinal beam reinforcing rib; 106 Set screw hole; 107 Lower locking plate meshing surface; 108 Upper locking plate meshing surface; 2. Upper structure support mechanism; 201 Support; 202 Rotating head; 203 Outrigger; 204 Hanging lug; 205 Limiting hole; 3. Reversing auxiliary mechanism; 301 Base; 302 Transmission rod; 303 Rotating shaft; 304 Reinforcing rib; 4. Upper structure; 401 Upper structure longitudinal beam; 402 Upper structure crossbeam; 403 Upper structure frame; 5. Truck chassis; 501 Chassis longitudinal beam. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-4 In this embodiment of the invention, a light-duty truck superstructure connection device includes a superstructure 4, the bottom of which is provided with a truck chassis 5; one end of the truck chassis 5 is connected to the superstructure 4 via a reversing auxiliary mechanism 3, and the other end is connected to the superstructure 4 via a superstructure locking mechanism 1; a superstructure support mechanism 2 is also provided on one side of the bottom of the superstructure 4, the superstructure support mechanism 2 being located at the end where the superstructure 4 is provided with the superstructure locking mechanism 1; the superstructure 4 includes a superstructure frame 403, on which a superstructure crossbeam 402 and a superstructure longitudinal beam 401 are welded; four superstructure locking mechanisms 1 are provided, two in a group, symmetrically arranged on both sides of the truck chassis 5, wherein the two superstructure locking mechanisms 1 near the A end of the superstructure 4 include a set screw hole 106; the two superstructure locking mechanisms 1 near the B end of the superstructure 4 do not include a set screw hole 106; a chassis longitudinal beam 501 is welded to the bottom of the truck chassis 5;

[0033] The upper locking mechanism 1 further includes an upper locking plate 101, a lower locking plate 102, a set screw 103, a perforated lower locking plate 104, a longitudinal beam reinforcing rib 105, a lower locking plate meshing surface 107, and an upper locking plate meshing surface 108; the upper locking plate 101 and the lower locking plate 102 are symmetrically arranged on both sides of the upper longitudinal beam 401 and are riveted together; the upper locking plate 101, the longitudinal beam reinforcing rib 105, and the upper longitudinal beam 401 are connected together by riveting, and the lower locking plate 102 and the perforated lower locking plate 104 are respectively connected together to the chassis longitudinal beam 501 by riveting.

[0034] The reversing assist mechanism 3 includes a base 301, which is riveted and fixed to the chassis longitudinal beam 501. The base 301 is L-shaped, and a transmission rod 302 is installed on the inner side of the base 301. The other end of the transmission rod 302 is sleeved on the rotating shaft 303 and then passes into the hole reserved in the upper longitudinal beam 401. The rotating shaft 303 is connected to the reinforcing rib 304 by riveting.

[0035] Please see Figure 1 The diagram shows the structure of the embodiment. The upper locking mechanism 1 is connected to the upper body 4 and the truck chassis 5 respectively. The two upper locking mechanisms 1 at the front have set screws 103, one on each side, and the two upper locking mechanisms 1 at the rear do not have set screws, one on each side. The upper support mechanism 2 is connected to the upper body 4, with two at the front and two at the rear, a total of four symmetrically installed. The reversing auxiliary mechanism 3 is connected to the upper body 4 and the truck chassis 5 respectively, with one on each side at the rear of the upper body.

[0036] Please see Figure 2-4 The upper locking plate 101, longitudinal beam reinforcing rib 105, and upper structure longitudinal beam 401 are connected together by riveting. The lower locking plate 102 and perforated lower locking plate 104 are connected together to the chassis longitudinal beam 501 by riveting. The upper structure 4 is installed on the truck chassis 5. The upper structure 4 is moved backward so that the meshing surface 107 of the lower locking plate and the meshing surface 108 of the upper locking plate mesh together. The set screw 103 is installed in the set screw hole 106 to ensure that the upper structure will not move forward or backward under normal vehicle conditions. The set screw hole 106 has internal threads. Before installing the set screw 103, a nut is installed on it. After the set screw 103 is installed in place, the nut on the set screw 103 is tightened to prevent loosening.

[0037] Please see Figure 9 Insert one square end of the rotating head 202 into the support leg 203 and connect them together by welding (B); connect the support 201 and the rotating head 202 together by riveting; connect the support 201 to the upper beam 402 and the upper frame 403 together by welding; connect the hanging ear 204 to the upper beam 402 by welding; when the upper support mechanism 2 is not in working state, retract the support leg 203 and connect the support leg 203 to the hanging ear (204) by bolt connection.

[0038] Please see Figure 5-8 The base 301 is riveted to the chassis longitudinal beam 501; the reinforcing rib 304 is welded to the upper longitudinal beam 401; the transmission rod 302 is fitted onto the rotating shaft 303 and then inserted into the pre-drilled hole in the upper longitudinal beam 401, and the rotating shaft 303 is riveted to the reinforcing rib 304. The limits are carefully controlled to allow the transmission rod 302 to rotate easily.

[0039] Please see Figure 9 The upper structure 4 and the truck chassis 5 are in a normal connection and locking state.

[0040] Please see Figure 10 Loosen the bolts connecting the outrigger 203 and the lug 204, lower the outrigger 203 to support it on the ground, and control the angle with the ground. Loosen the set screw 103 and begin reversing to detach the truck chassis 5 from the superstructure 4.

[0041] Please see Figure 11 During the reversing process, the upper locking mechanism 1 is released and does not work, while the reversing auxiliary mechanism 3 starts to work and continues reversing.

[0042] Please see Figure 12 After reversing, the truck chassis 5 is completely separated from the upper body 4. The bolts connecting the removed outriggers 203 and lugs 204 are installed in the limiting holes 205 of the outriggers 203 and the support 201, so that the upper body 4 is independently supported on the ground.

[0043] The working principle of this invention is as follows: the upper locking plate 101, the longitudinal beam reinforcing rib 105, and the upper longitudinal beam 401 are connected together by riveting; the lower locking plate 102 and the perforated lower locking plate 104 are respectively connected together to the chassis longitudinal beam 501 by riveting. The upper structure 4 is installed on the truck chassis 5. The upper structure 4 is moved backward so that the meshing surface 107 of the lower locking plate and the meshing surface 108 of the upper locking plate mesh together. The set screw 103 is installed in the set screw hole 106 to ensure that the upper structure will not move forward or backward under normal vehicle conditions. The set screw hole 106 has an internal thread. Before installing the set screw 103, a nut is installed on it. After the set screw 103 is installed in place, the nut on the set screw 103 is tightened to prevent loosening.

[0044] Insert one square end of the rotating head 202 into the support leg 203 and connect them together by welding (B); connect the support 201 and the rotating head 202 together by riveting; connect the support 201 to the upper beam 402 and the upper frame 403 together by welding; connect the hanging ear 204 to the upper beam 402 by welding; when the upper support mechanism 2 is not in working state, retract the support leg 203 and connect the support leg 203 to the hanging ear (204) together by bolt connection;

[0045] The base 301 is riveted to the chassis longitudinal beam 501; the reinforcing rib 304 is welded to the upper longitudinal beam 401; the transmission rod 302 is fitted onto the rotating shaft 303 and then inserted into the pre-drilled hole in the upper longitudinal beam 401, and the rotating shaft 303 is riveted to the reinforcing rib 304. The limits are carefully controlled to allow the transmission rod 302 to rotate easily.

[0046] The upper structure 4 and the truck chassis 5 are in a normal connected and locked state. Loosen the connecting bolts between the outrigger 203 and the lug 204, lower the outrigger 203 to support it on the ground, and control the angle with the ground. Loosen the set screw 103 and start reversing to detach the truck chassis 5 from the upper structure 4. During reversing, the upper structure locking mechanism 1 is released and does not work, while the reversing auxiliary mechanism 3 starts working and continues reversing. After reversing, the truck chassis 5 is completely detached from the upper structure 4. Install the removed connecting bolts of the outrigger 203 and lug 204 into the limiting holes 205 of the outrigger 203 and the support 201, so that the upper structure 4 is independently supported on the ground.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A connecting device for the superstructure of a light-duty truck, characterized in that: The system includes an upper structure (4), at the bottom of which a truck chassis (5) is provided; one end of the truck chassis (5) is connected to the upper structure (4) via a reversing assist mechanism (3), and the other end is connected to the upper structure (4) via an upper structure locking mechanism (1); an upper structure support mechanism (2) is also provided on one side of the bottom of the upper structure (4), and the upper structure support mechanism (2) is located at the end where the upper structure (4) has the upper structure locking mechanism (1); the upper structure (4) includes an upper structure frame (403). The upper frame (403) is welded with an upper frame crossbeam (402) and an upper frame longitudinal beam (401); the upper frame locking mechanism (1) is provided in four parts, two to a group, symmetrically arranged on both sides of the truck chassis (5), wherein the two upper frame locking mechanisms (1) near the A end of the upper frame (4) include a top screw hole (106); the two upper frame locking mechanisms (1) near the B end of the upper frame (4) do not include a top screw hole (106); the truck chassis (5) is welded with a chassis longitudinal beam (501) at the bottom; The upper locking mechanism (1) further includes an upper locking plate (101), a lower locking plate (102), a set screw (103), a perforated lower locking plate (104), a longitudinal beam reinforcing rib (105), a lower locking plate meshing surface (107), and an upper locking plate meshing surface (108); the upper locking plate (101) and the lower locking plate (102) are symmetrically arranged on both sides of the upper longitudinal beam (401) and riveted together; the upper locking plate (101), the longitudinal beam reinforcing rib (105), and the upper longitudinal beam (401) are connected together by riveting, and the lower locking plate (102) and the perforated lower locking plate (104) are respectively connected together to the chassis longitudinal beam (501) by riveting. The reversing assist mechanism (3) includes a base (301), which is riveted to the chassis longitudinal beam (501); the base (301) is L-shaped, and a transmission rod (302) is installed on the inner side of the base (301); the other end of the transmission rod (302) is sleeved on the rotating shaft (303) and then passed into the hole reserved in the upper longitudinal beam (401); the rotating shaft (303) is connected to the reinforcing rib (304) by riveting. When the truck chassis (5) is detached from the superstructure (4), loosen the connecting bolts between the outrigger (203) and the lug (204), lower the outrigger (203) to support it on the ground, control the angle with the ground, loosen the top screw (103), and start reversing. This will allow the truck chassis (5) to detach from the superstructure (4).

2. The light truck superstructure connecting device according to claim 1, characterized in that: The upper structure (4) is located above the truck chassis (5). When the upper structure (4) moves backward, the lower locking plate meshing surface (107) and the upper locking plate meshing surface (108) mesh together. The top screw (103) is installed in the top screw hole (106) to ensure that the upper structure will not move forward or backward under normal vehicle conditions. The top screw hole (106) has an internal thread. Before installing the top screw (103), a nut is installed on it. After the top screw (103) is installed in place, the nut on the top screw (103) is tightened to prevent loosening.

3. The light truck superstructure connecting device according to claim 1, characterized in that: The upper support mechanism (2) includes a support (201), a rotating head (202), a support leg (203) and a hanging ear (204). The upper support mechanism (2) can achieve the separation of the upper (4) from the chassis (5), and the upper support mechanism (2) can enable the upper (4) to be independently supported on the ground.

4. The light truck superstructure connecting device according to claim 3, characterized in that: The rotating head (202) is square at one end and semi-circular at the other end. The square end is located inside the support leg (203) and is welded and fixed. The support (201) is riveted and fixed to the rotating head (202). The support (201) is also welded and fixed to the upper beam (402) and the upper frame (403). The hanging ear (204) is welded and fixed to the upper beam (402).

5. The light truck superstructure connecting device according to claim 4, characterized in that: When the upper support mechanism (2) is not in operation, the outrigger (203) is retracted and the outrigger (203) is connected to the lug (204) by bolt connection.

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