Vehicle tail dragging device and concrete pump truck

Abstract

The utility model relates to the technical field of concrete pump trucks, and discloses a vehicle tail dragging device and a concrete pump truck, the vehicle tail dragging device comprises two mounting mechanisms and a cross beam connected between the two mounting mechanisms, and each mounting mechanism comprises a connecting assembly, an auxiliary frame longitudinal beam and a chassis longitudinal beam, the connecting assembly is respectively connected with the auxiliary frame longitudinal beam and the chassis longitudinal beam, the connecting assembly is provided with a dragging hook hole, the stability of the structure during dragging is guaranteed, and the damage caused by excessive deformation of the structure during dragging is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of concrete pump trucks, and particularly relates to a vehicle tail dragging device and a concrete pump truck. Background Art

[0002] A concrete pump truck is a construction machinery that uses pressure to transport pre-mixed concrete along a pipeline to a certain height and distance, and is widely used in modern construction projects. When a concrete pump truck breaks down and cannot move, in some cases, it needs to be towed from the rear. Generally, the towing device on the chassis is arranged in front of the cab, and there is no towing device at the rear. Therefore, it is necessary to design a convenient and reliable towing structure at the upper part of the rear of the concrete pump truck.

[0003] In the prior art solutions, when towing from the rear is required, generally, a rope is fixed at the conveying pipe at the hopper outlet or the vertical leg cylinder, and then towing is carried out. However, the prior art solutions mainly have two deficiencies: one is that when the towing force-bearing part is fixed to the conveying pipe or the vertical leg cylinder with a rope, the seal at the connection of the conveying pipe is easily damaged and the cylinder is deformed during towing, affecting the use; the other is that there is no dedicated towing hook for fixing, and it is unstable during towing, and problems such as the rope slipping and lateral offloading are likely to occur.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present application and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a vehicle tail dragging device and a concrete pump truck to ensure the stability of the structure during towing and prevent excessive deformation of the structure during towing, resulting in damage.

[0006] To achieve the above object, the present application is implemented by the following technical solutions:

[0007] In the first aspect, a vehicle tail dragging device is provided, including two mounting mechanisms and a cross beam connected between the two mounting mechanisms. The mounting mechanism includes a connecting component, a sub-frame longitudinal beam, and a chassis longitudinal beam. The connecting component is respectively connected to the sub-frame longitudinal beam and the chassis longitudinal beam, and the connecting component is provided with a towing hook hole.

[0008] Optionally, the connecting component includes a back plate and a connecting plate. The connecting plate is fixedly installed on the back plate. The back plate is fixedly connected to the end of the sub-frame longitudinal beam, and the connecting plate is fixedly connected to the side of the sub-frame longitudinal beam.

[0009] Optionally, the connecting component further includes a lower rib plate, and the lower rib plate is connected between the connecting plate and the back plate.

[0010] Optionally, one end of the lower rib plate connected to the back plate extends and protrudes beyond the back plate, and a drag hook hole is provided on the protruding part.

[0011] Optionally, the connecting component further includes a plurality of upper rib plates. One side surface of the upper rib plate is connected to the back plate, and the other side surface of the upper rib plate is connected to the connecting plate or the longitudinal beam of the subframe.

[0012] Optionally, both the upper rib plate and the lower rib plate are triangular.

[0013] Optionally, mounting holes are provided on the connecting plate, and the longitudinal beam of the chassis is connected to the connecting plate through the mounting holes.

[0014] Optionally, the cross beam includes an upper cross beam and a lower cross beam. The upper cross beam is fixedly installed between the two longitudinal beams of the subframe by bolts, and the lower cross beam is installed between the two connecting plates by screws or welding.

[0015] Optionally, the back plate is provided with a drag hook hole.

[0016] In a second aspect, a concrete pump truck is provided, including the vehicle tail dragging device described in the first aspect.

[0017] Compared with the prior art, the beneficial effects achieved by the present application are as follows:

[0018] In the present utility model, two mounting mechanisms are stably connected by a cross beam. The mounting mechanisms include a longitudinal beam of the subframe and a longitudinal beam of the chassis connected by a connecting component, forming a high-rigidity tail dragging structure, ensuring the stability of the structure during dragging, preventing excessive deformation of the structure during dragging and causing damage. At the same time, the connecting component is provided with a drag hook hole, which is convenient for the drag hook to be hooked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a side schematic view of the vehicle tail dragging device in Embodiment 1 of the present utility model;

[0021] Figure 2 It is a rear schematic view of the vehicle tail dragging device in Embodiment 1 of the present utility model;

[0022] Figure 3This is a schematic rear view of the vehicle tail towing device in the second embodiment of the present utility model.

[0023] In the figure, the markings are as follows: 1, chassis longitudinal beam; 2, subframe longitudinal beam; 3, connecting plate; 4, lower rib plate; 5, upper rib plate; 6, back plate; 7, lower cross beam; 8, upper cross beam; 9, mounting hole; 10, towing hook hole. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use. Embodiment

[0025] This embodiment provides a vehicle tail towing device, as Figure 1 shown, including two mounting mechanisms and a cross beam connected between the two mounting mechanisms. The mounting mechanism includes a connection component, a subframe longitudinal beam 2 and a chassis longitudinal beam 1. The connection component is respectively connected to the subframe longitudinal beam 2 and the chassis longitudinal beam 1. The connection component is provided with a towing hook hole 10. The two mounting mechanisms are stably connected by the cross beam. The mounting mechanism includes a subframe longitudinal beam 2 and a chassis longitudinal beam 1 connected through the connection component, forming a high-rigidity tail towing structure, ensuring the stability of the structure during towing and preventing excessive deformation of the structure during towing from causing damage. At the same time, the connection component is provided with a towing hook hole 10, which is convenient for the towing hook to be hooked, improving the stability of towing.

[0026] As Figure 2 shown, the connection component includes a back plate 6 and a connecting plate 3. The connecting plate 3 is fixedly installed on the back plate. The back plate 6 is fixedly connected to the end of the subframe longitudinal beam 2. The connecting plate 3 is fixedly connected to the side of the subframe longitudinal beam 2. The connecting plate 3 is used to connect the towing structure and the subframe longitudinal beam 2.

[0027] The connection component further includes a lower rib plate 4. The lower rib plate 4 is connected between the connecting plate 3 and the back plate 6. The lower rib plate 4 plays a supporting role to make the whole structure more stable. One end of the lower rib plate 4 connected to the back plate 6 extends and protrudes from the back plate 6, and the protruding part is provided with a towing hook hole 10, which is convenient for the towing hook to be hooked through the towing hook hole, improving the stability of towing.

[0028] As Figure 2 shown, the connection component further includes a plurality of upper rib plates 5. One side surface of the upper rib plate 5 is connected to the back plate 6, and the other side surface of the upper rib plate 5 is connected to the connecting plate 3 or the subframe longitudinal beam 2. Both the upper rib plate 5 and the lower rib plate 4 are triangular, and the upper rib plate 5 and the lower rib plate 4 are used to enhance the structural rigidity.

[0029] The connecting plate 3 is provided with mounting holes 9, and the chassis longitudinal beam 1 is connected to the connecting plate 3 through the mounting holes 9 and the matching bolts / screws, ensuring that the entire structure can be stably connected to the concrete pump truck.

[0030] The cross beam includes an upper cross beam 8 and a lower cross beam 7. The upper cross beam 8 is fixedly installed between the two subframe longitudinal beams 2 by bolts, and the lower cross beam 7 is installed between the two connecting plates 3 by screws, ensuring the stability of the structure during towing. Embodiment

[0031] This embodiment provides a vehicle tail towing device, which is different from Embodiment 1 in that:

[0032] As Figure 3 shown, the towing hook hole 10 is provided on the back plate 6, facilitating the hooking of the towing hook of the tractor. The assembly method of the lower cross beam 7 and the connecting plate 3 is changed to a welded type, ensuring the stability and rigidity of the entire structure connection. Embodiment

[0033] This embodiment provides a concrete pump truck equipped with the vehicle tail towing device described in Embodiment 1 or Embodiment 2, making the concrete pump truck have stronger stability during towing.

[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only used to explain the relative positional relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present application 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, and therefore cannot be understood as a limitation to the present application.

[0035] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

[0036] The above are only the preferred embodiments of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present application.

Claims

1. A vehicle tail dragging device, characterized in that: It includes two mounting mechanisms and a crossbeam connected between the two mounting mechanisms; The mounting mechanism comprises a connecting assembly, a sub-frame longitudinal beam (2) and a chassis longitudinal beam (1), wherein the connecting assembly is respectively connected to the sub-frame longitudinal beam (2) and the chassis longitudinal beam (1), and the connecting assembly is provided with a towing hook hole (10); The connection assembly comprises a back plate (6) and a connection plate (3), wherein the connection plate (3) is fixedly mounted on the back plate, the back plate (6) is fixedly connected to the end of the auxiliary frame longitudinal beam (2), and the connection plate (3) is fixedly connected to the side of the auxiliary frame longitudinal beam (2).

2. The vehicle tail dragging device according to claim 1, characterized in that: The connection assembly further comprises a lower rib plate (4), wherein the lower rib plate (4) is connected between the connection plate (3) and the back plate (6).

3. The vehicle tail dragging device according to claim 2, characterized in that: One end of the lower rib plate (4) connected to the back plate extends and protrudes from the back plate (6), and the protruding portion is provided with the towing hook hole (10).

4. The vehicle tail dragging device according to claim 2, characterized in that: The connection assembly further comprises a plurality of upper ribs (5), one side of the upper ribs (5) being connected to the back plate (6), and the other side of the upper ribs (5) being connected to the connection plate (3) or the auxiliary frame longitudinal beam (2).

5. The vehicle tail dragging device according to claim 4, characterized in that: The upper rib plate (5) and the lower rib plate (4) are both triangular in shape.

6. The vehicle tail dragging device according to claim 1, characterized in that: The connecting plate (3) is provided with a mounting hole (9), and the chassis longitudinal beam (1) is connected to the connecting plate (3) via the mounting hole (9).

7. The vehicle tail dragging device according to claim 1, characterized in that: The cross beam comprises an upper cross beam (8) and a lower cross beam (7); the upper cross beam (8) is fixedly installed between the two auxiliary frame longitudinal beams (2) by means of bolts, and the lower cross beam (7) is installed between the two connecting plates (3) by means of screws or welding.

8. The vehicle tail dragging device according to claim 1, characterized in that: The back plate (6) is provided with a towing hook hole (10).

9. A concrete pump truck, characterized in that: The vehicle rear towing device comprises the vehicle rear towing device according to any one of claims 1 to 8.

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