Liftable rear protection device of dumper and dumper

Abstract

The utility model provides a dumper liftable rear protection and a dumper, the dumper liftable rear protection comprises a sliding sleeve, a rear protection main body, a guide piece and a flexible connecting piece, the sliding sleeve is suitable for being arranged at the tail of the dumper and is connected with a frame; the rear protection main body penetrates through the sliding sleeve and is in sliding fit with the sliding sleeve; the guide piece is fixedly arranged on the side, facing the headstock, of the sliding sleeve. One end of the flexible connection assembly is connected with the rear protection main body, and the other end extends upwards and is connected with the container through the guide piece; the flexible connecting assembly is suitable for pulling the rear protection body to slide upwards when the container is turned upwards. The dumper comprises a frame, a container and the liftable rear protection device of the dumper, and the sliding sleeve and the guide piece are both connected with the frame. According to the liftable rear protection device of the dumper and the dumper, the rear protection body is arranged at the tail of the dumper frame in the sliding mode through the sliding sleeve, in the unloading process, the container is turned upwards, the rear protection body is lifted by pulling the flexible connecting assembly, and the rear protection body is prevented from being buried and pressed by gravel materials.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle equipment technology, specifically relating to a dump truck with liftable rear protection and a dump truck. Background Technology

[0002] The horizontal guardrail at the rear of a construction machinery dump truck is designed to protect the truck from rear-end collisions; this is called a rear guard. The function of the rear guard is to prevent other objects from entering the vehicle's interior, providing rear safety protection. The improved method of connecting the front and rear guards to the frame by welding is problematic. This method often results in the guards being buried or damaged by materials during unloading, causing significant inconvenience and high labor and material costs for later replacement and repair. Utility Model Content

[0003] This utility model provides a dump truck with an improved rear protection system, aiming to solve the technical problem that the rear protection of existing dump trucks is easily buried or damaged by materials during unloading.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] In a first aspect, embodiments of this utility model provide a liftable rear protection for a dump truck, including:

[0006] Sliding sleeve, suitable for installation at the rear of the vehicle, connecting to the vehicle frame;

[0007] The rear protective body is inserted into the sliding sleeve and slides in cooperation with the sliding sleeve.

[0008] A guide member, fixedly mounted on the side of the sliding sleeve facing the front of the vehicle; and

[0009] A flexible connecting assembly has one end connected to the rear protective body and the other end extending upward through the guide to connect to the cargo box; the flexible connecting assembly is adapted to pull the rear protective body upward when the cargo box is flipped upward.

[0010] In conjunction with the first aspect, in one possible implementation of the improved rear protection for dump trucks provided by this utility model, the rear protection body includes:

[0011] The guide post is slidably fitted inside the sliding sleeve; and

[0012] A horizontal beam is provided and connected to the guide column.

[0013] In conjunction with the first aspect, in one possible implementation of the liftable rear protection for dump trucks provided by this utility model, there are several sliding sleeves and several guide posts. The several sliding sleeves are spaced apart along the width direction of the cargo box, and the several guide posts correspond one-to-one with the sliding sleeves and are all connected to the crossbeam.

[0014] In conjunction with the first aspect, in one possible implementation of the improved rear protection of the dump truck provided by this utility model, the rear protection body further includes multiple rollers, all of which are connected to the guide post and are adapted to roll along the inner wall of the sliding sleeve.

[0015] In conjunction with the first aspect, in one possible implementation of the liftable rear protection for dump trucks provided by this utility model, the guide includes a first pulley and a second pulley. The first pulley is disposed on the upper side of the sliding sleeve and connected to the sliding sleeve or the vehicle frame. The second pulley is fixed on the side of the sliding sleeve facing the front of the vehicle and is adapted to be connected to the vehicle frame of the dump truck. The flexible connecting assembly passes through the first pulley and the second pulley in sequence.

[0016] In conjunction with the first aspect, in one possible implementation of the improved rear protection of the dump truck provided by this utility model, the flexible connecting component includes a connecting rope, which passes sequentially through the first pulley and the second pulley, with one end connected to the rear protection body and the other end connected to the bottom of the cargo box.

[0017] In conjunction with the first aspect, in one possible implementation of the improved rear protection for dump trucks provided by this utility model, the flexible connection assembly further includes a buffer spring, the lower end of which is connected to the rear protection body, and the upper end of which is connected to the connecting rope.

[0018] Secondly, this utility model embodiment also provides a dump truck, including a frame, a cargo box and the aforementioned liftable rear protection for dump trucks, wherein the sliding sleeve and the guide are both connected to the frame.

[0019] The beneficial effect of the improved rear protection provided by this utility model is as follows: Compared with the prior art, the improved rear protection of the dump truck provided by this utility model is that the rear protection body is slidably mounted on the rear of the frame through a sliding sleeve. When unloading, the cargo box flips upward, and the rear protection body is raised by pulling the flexible connecting component, which prevents the rear protection body from being buried by sand and gravel. After unloading, it can fall down with the cargo box, and the rear protection body automatically descends to the initial height.

[0020] The beneficial effects of the dump truck provided by this utility model are as follows: Compared with the prior art, the dump truck provided by this utility model is equipped with the above-mentioned liftable rear protection. The rear protection body is slidably mounted on the rear of the frame through a sliding sleeve. When unloading, the cargo box flips upward, and the rear protection body is raised by pulling the flexible connecting component, so as to avoid the rear protection body being buried by sand and gravel. After unloading is completed, it can fall down with the cargo box, and the rear protection body automatically descends to the initial height. Attached Figure Description

[0021] Figure 1 A cross-sectional structural schematic diagram of the liftable rear protection structure of the dump truck provided in an embodiment of this utility model;

[0022] Figure 2 A front view structural schematic diagram of the lifting rear protection sleeve and the main body of the rear protection for a dump truck provided in an embodiment of this utility model;

[0023] Figure 3 A partial structural schematic diagram of the dump truck provided in an embodiment of this utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Sliding sleeve; 21. Guide column; 22. Crossbeam; 23. Roller; 31. First pulley;

[0026] 32. Second pulley; 41. Connecting rope; 42. Buffer spring; 51. Chassis; 52. Cargo box. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0034] Please refer to the following: Figures 1 to 3The liftable rear protection for dump trucks provided by this utility model will now be described. The liftable rear protection for dump trucks includes a sliding sleeve 10, a rear protection body, a guide member, and a flexible connector. The sliding sleeve 10 is adapted to be located at the rear of the vehicle and connected to the vehicle frame 51. The rear protection body is inserted into the sliding sleeve 10 and slides in cooperation with it. The guide member is fixed to the side of the sliding sleeve 10 facing the front of the vehicle. One end of the flexible connector is connected to the rear protection body, and the other end extends upward through the guide member and connects to the cargo box 52. The flexible connector is adapted to pull the rear protection body upward when the cargo box 52 is tilted upward.

[0035] The beneficial effect of the improved rear protection provided by this embodiment of the utility model is as follows: Compared with the prior art, the improved rear protection of the dump truck provided by this embodiment of the utility model is that the rear protection body is slidably mounted on the rear of the frame 51 through the sliding sleeve 10. When unloading, the cargo box 52 flips upward, and the rear protection body is raised by pulling the flexible connecting component, so as to avoid the rear protection body being buried by sand and gravel. After unloading is completed, it can fall down with the cargo box 52, and the rear protection body automatically descends to the initial height.

[0036] like Figure 1 and Figure 2 As shown, in a specific embodiment of the liftable rear protection for dump trucks provided in this utility model, the rear protection body includes a guide post 21 and a crossbeam 22. The guide post 21 is slidably sleeved in the sliding sleeve 10; the crossbeam 22 is arranged laterally and connected to the guide post 21.

[0037] Specifically, such as Figure 1 and Figure 2 As shown in the embodiment of the present invention, in a specific implementation of the liftable rear protection for dump trucks, there are several sliding sleeves 10 and guide posts 21. Several sliding sleeves 10 are spaced apart along the width direction of the cargo box 52, and several guide posts 21 correspond one-to-one with the sliding sleeves 10 and are all connected to the crossbeam 22. The number of sliding sleeves 10 and guide posts 21 is set according to the width of the cargo box 52 to ensure that the structural strength of the rear protection body meets the standard.

[0038] More specifically, in this embodiment, there are two sliding sleeves 10 and two guide posts 21.

[0039] like Figure 1 and Figure 2 As shown, in a specific embodiment of the liftable rear protection of the dump truck provided in this utility model, the rear protection body also includes multiple rollers 23, all of which are connected to the guide post 21 and are adapted to roll along the inner wall of the sliding sleeve 10.

[0040] Specifically, at least four rollers 23 are provided on both sides of each guide post 21. The four rollers 23 are arranged vertically in pairs and roll along the inner wall of the sliding sleeve 10 to reduce the sliding resistance of the rear protective body.

[0041] like Figure 1 and Figure 3 As shown, in a specific embodiment of the liftable rear protection of the dump truck provided in this utility model, the guide includes a first pulley 31 and a second pulley 32. The first pulley 31 is disposed on the upper side of the sliding sleeve 10 and connected to the sliding sleeve 10 or the vehicle frame. The second pulley 32 is fixed on the side of the sliding sleeve 10 facing the front of the vehicle and is suitable for connecting to the vehicle frame 51 of the dump truck. The flexible connecting component passes through the first pulley 31 and the second pulley 32 in sequence.

[0042] It should be noted that the movement trajectory of the flexible connecting component is changed by the first pulley 31 and the second pulley 32 so that the upward-flipping cargo box 52 can pull the flexible connecting component and drive the rear protective body to slide upward.

[0043] like Figure 1 and Figure 3 As shown, in a specific embodiment of the liftable rear protection of the dump truck provided in this utility model, the flexible connection component includes a connecting rope 41, which passes through a first pulley 31 and a second pulley 32 in sequence, with one end connected to the rear protection body and the other end connected to the bottom of the cargo box 52.

[0044] Specifically, the connecting rope 41 is a steel wire rope to ensure strength.

[0045] like Figure 1 and Figure 2 As shown in the embodiment of the liftable rear protection for dump trucks provided in this utility model, the flexible connection assembly further includes a buffer spring 42. The lower end of the buffer spring 42 is connected to the rear protection body, and the upper end is connected to the connecting rope 41. The buffer spring 42 provides buffering to prevent damage to the connecting rope 41, the first pulley 31, and the second pulley 32 due to excessive impact force.

[0046] Based on the same inventive concept, such as Figure 1 and Figure 3 As shown, this application embodiment also provides a dump truck, including a frame 51, a cargo box 52 and the above-mentioned liftable rear protection for dump trucks, with the sliding sleeve 10 and guide members both connected to the frame 51.

[0047] The beneficial effects of the dump truck provided in this utility model embodiment are as follows: Compared with the prior art, the dump truck provided in this utility model embodiment is equipped with the above-mentioned liftable rear protection. The rear protection body is slidably mounted on the rear of the frame 51 via the sliding sleeve 10. During unloading, the cargo box 52 flips upward, and the rear protection body is raised by pulling the flexible connecting component, which prevents the rear protection body from being buried by sand and gravel. After unloading is completed, it can fall down with the cargo box 52, and the rear protection body automatically descends to the initial height.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A liftable rear protection system for a dump truck, characterized in that, include: Sliding sleeve, suitable for installation at the rear of the vehicle, connecting to the vehicle frame; The rear protective body is inserted into the sliding sleeve and slides with the sliding sleeve, having the freedom to slide up and down; A guide component is fixedly mounted on the side of the sliding sleeve facing the front of the vehicle; as well as A flexible connecting assembly has one end connected to the rear protective body and the other end extending upward through the guide to connect to the cargo box; the flexible connecting assembly is adapted to pull the rear protective body upward when the cargo box is flipped upward.

2. The liftable rear protection for dump trucks as described in claim 1, characterized in that, The rear protective body includes: The guide post is slidably fitted inside the sliding sleeve; and A horizontal beam is provided and connected to the guide column.

3. The liftable rear protection for dump trucks as described in claim 2, characterized in that, There are several sliding sleeves and several guide posts. The sliding sleeves are spaced apart along the width of the cargo box, and the guide posts correspond one-to-one with the sliding sleeves and are all connected to the crossbeam.

4. The liftable rear protection for dump trucks as described in claim 2, characterized in that, The rear protective body also includes multiple rollers, all of which are connected to the guide post and are adapted to roll along the inner wall of the sleeve.

5. The liftable rear protection for dump trucks as described in claim 1, characterized in that, The guide includes a first pulley and a second pulley. The first pulley is disposed on the upper side of the sliding sleeve and connected to the sliding sleeve or the vehicle frame. The second pulley is fixed on the side of the sliding sleeve facing the front of the vehicle and is adapted to be connected to the vehicle frame of the dump truck. The flexible connecting assembly passes through the first pulley and the second pulley in sequence.

6. The liftable rear protection for dump trucks as described in claim 5, characterized in that, The flexible connection component includes a connecting rope that passes sequentially through the first pulley and the second pulley, with one end connected to the rear protective body and the other end connected to the bottom of the cargo box.

7. The liftable rear protection for dump trucks as described in claim 6, characterized in that, The flexible connection assembly also includes a buffer spring, the lower end of which is connected to the rear protective body and the upper end of which is connected to the connecting rope.

8. A dump truck, characterized in that, It includes a chassis, a cargo box, and a liftable rear guard for dump trucks as described in any one of claims 1-7, wherein the sliding sleeve and the guide are both connected to the chassis.

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