Anti-collision device of dumper

By designing anti-collision devices on dump trucks, and using proximity sensors and swing components to monitor the angle of the anti-collision plates to achieve an alarm function, the protection problems of the steering axle and steering cylinder are solved, the operating space is increased, and the risk of falling during reversing and unloading is avoided.

CN223934664UActive Publication Date: 2026-02-24LIUGONG CHANGZHOU MACHINERY
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Patent Information

Application Number
CN202520783228.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-02-24
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

The existing safety devices on dump trucks cannot protect both the steering axle and the steering cylinder at the same time, and there is a risk of falling when reversing to unload.

Method used

A collision avoidance device was designed, including a fall protection device and a protective plate. The swing angle of the collision avoidance plate is monitored by a proximity sensor switch. Combined with a touch plate and a swing arm structure, an alarm function is realized. The working space of the steering axle and steering cylinder is increased by a connecting plate.

Benefits of technology

It implements an alarm function when the dump truck is reversing and unloading, increases the protection range of the steering axle and steering cylinder, avoids the risk of falling, and provides more stable structural protection.

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Abstract

The utility model relates to the technical field of dumper protection, in particular to an anti-collision device of a dumper, which comprises an anti-collision main body, an anti-falling device is arranged on the anti-collision main body, the anti-falling device comprises a fixing block, one side of the fixing block is fixed on the anti-collision main body, the other side of the fixing block is provided with a connecting piece, and the connecting piece is connected with the anti-collision main body. Mounting plates are symmetrically mounted below the connecting piece, proximity induction switches are mounted on the two mounting plates, a positioning piece is arranged below the two proximity induction switches, and a swing assembly is arranged on the positioning piece, so that the hidden danger that a dumper working in a mining area falls off during unloading and backing up is solved; the touch plate makes contact with the retaining wall, the touch plate drives the swing rod to rotate under the reverse thrust of the retaining wall, the proximity induction switch conducts monitoring, when the swing rod leaves the monitoring range of the proximity induction switch, the proximity induction switch gives an alarm, and the effect of giving an alarm when the dumper backs up for unloading is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of dump truck protection technology, specifically to a dump truck anti-collision device. Background Technology

[0002] Dump trucks are special vehicles designed for heavy-duty transportation in mines, construction sites, and other similar environments. Their main function is to transport heavy materials such as ore and earth from one location to another. Dump trucks are characterized by high load-bearing capacity, self-unloading capability, powerful power system, and durability, enabling them to adapt to complex terrain and harsh operating environments.

[0003] Currently, the rear protective devices on dump trucks are mainly used to enhance the protection of the rear of the vehicle, ensuring safety and reliability under complex working conditions. This device typically consists of connecting beams, diagonal braces, and crossbeams, forming a triangular structure. The combination of the connecting beams and diagonal braces, along with the connection of the crossbeams, improves the overall structural strength. The crossbeams usually employ a cylindrical design to provide better cushioning.

[0004] However, the newly developed dump truck's last axle has steering axle technology, the steering rod can move within a certain space, and the steering cylinder is located behind the axle. The existing protective devices will interfere with the steering axle, and cannot achieve the protective effect of protecting both the steering axle and the steering cylinder. Furthermore, when dump trucks working in mining areas are unloading, there is a risk of falling when reversing.

[0005] Therefore, it is necessary to provide a new type of anti-collision device for dump trucks. Utility Model Content

[0006] In view of the technical problems existing in the prior art, the present invention provides a collision avoidance device for dump trucks.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A crash prevention device for a dump truck includes a crash prevention body, on which a fall prevention device is installed. The fall prevention device includes a fixing block, one side of which is fixed to the crash prevention body, and a connector is installed on the other side of which. Mounting plates are symmetrically installed below the connectors. A proximity sensor switch is installed on each of the two mounting plates. A positioning component is provided below the two proximity sensors, and a swing component is provided on the positioning component.

[0009] The present invention is further configured such that: the positioning member is installed through the two mounting plates, and the swing assembly is located at the middle position of the two mounting plates.

[0010] The present invention is further configured to include a fixing device, wherein protective plates are provided on both sides of the two mounting plates, and the protective plates are mounted on the mounting plates by means of the fixing device.

[0011] The present invention is further configured such that: the swing assembly includes a swing rod, the swing rod is provided with two positioning grooves, and the positioning member passes through one of the positioning grooves to restrict the position of the swing assembly.

[0012] The present invention is further configured such that: one end of the swing rod is connected to a touch plate, and connecting blocks are installed on both sides of the end of the swing rod near the touch plate, the connecting blocks connecting the swing rod and the touch plate.

[0013] The present invention is further configured such that: the connector is L-shaped, and two triangular plates are provided on the connector to support the structure.

[0014] The present invention is further configured such that the connecting member is fixed to the fixing block by the fixing device.

[0015] The present invention is further configured such that: the anti-collision body includes four anti-collision plates, and the anti-collision plates are connected by connecting columns through each other.

[0016] The present invention is further configured such that the fixing block is mounted on the connecting column.

[0017] The present invention is further configured such that: every two anti-collision plates are symmetrically arranged on both sides of the fixed block as a group, and each group of anti-collision plates is provided with a connecting plate, and the connecting plate is fixed to the anti-collision plate by a fixing device.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. By setting a touch plate to contact the retaining wall, the touch plate is driven by the counter-force of the retaining wall to rotate the swing arm, which is monitored by the proximity sensor. When the swing arm leaves the monitoring range of the proximity sensor, the proximity sensor alarms, thus achieving the effect of alarming when the dump truck is reversing to unload.

[0020] 2. By setting two anti-collision plates symmetrically on both sides of the fixed block, and installing a connecting plate on each anti-collision plate, the steering axle and steering cylinder are better protected, thereby increasing the working space and expanding the protection range. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1This is a schematic diagram of the overall structure of an anti-collision device for a dump truck provided by this utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the overall structure of the fall arrestor;

[0024] Figure 3 for Figure 2 A partial diagram of the exploded structure;

[0025] Figure 4 for Figure 1 The left view;

[0026] Figure 5 for Figure 4 A schematic diagram of the action structure.

[0027] The component names and their numbers in the diagram are as follows:

[0028] 1. Main body of the anti-collision device; 11. Anti-collision plate; 12. Connecting plate; 13. Connecting column;

[0029] 2. Fall arrestor; 21. Fixing block; 22. Connecting piece; 23. Protective plate; 24. Swing assembly; 241. Swing rod; 242. Connecting block; 243. Touch plate; 244. Positioning groove; 25. Positioning piece; 26. Proximity sensor switch; 27. Mounting plate;

[0030] 3. Fixing device. Detailed Implementation

[0031] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Example 1,

[0033] See Figures 1 to 3 It includes a crash protection body 1 and a fixing device 3. The crash protection body 1 is equipped with a fall protection device 2. The crash protection body 1 is installed at the rear end of the mining dump truck. The fall protection device 2 is used to sense the retaining wall. When the angle of the fall protection device 2 exceeds a certain range, an alarm will be triggered.

[0034] The anti-collision body 1 includes four anti-collision plates 11, and connecting columns 13 are penetrating and connected between the anti-collision plates 11. The four anti-collision plates 11 and the connecting columns 13 cooperate to form the anti-collision body structure, which protects the rear end of the dump truck. By cooperating with the anti-collision plates 11 and the connecting columns 13, the space occupied is reduced, providing movement space for the steering axle of the dump truck. Furthermore, the four anti-collision plates 11 are connected by the connecting columns 13, which increases the protection range.

[0035] The fall arrestor 2 includes a fixing block 21, one side of which is fixed to the anti-collision body 1. The fixing block 21 is fixedly installed with the connecting column 13. The fixing block 21 restricts the installation position of the fall arrestor 2. The connecting piece 22 is L-shaped and has two triangular plates on it to support the structure. The two triangular plates can prevent the connecting piece 22 from deforming.

[0036] Two anti-collision plates 11 are symmetrically arranged on both sides of the fixing block 21. Each set of anti-collision plates 11 is provided with a connecting plate 12, which is fixed to the anti-collision plate 11 by the fixing device 3.

[0037] The connecting plate 12 is provided to facilitate fixing to the dump truck. The connecting plate 12 connects two anti-collision plates 11, making the structure of the anti-collision plates 11 more stable and providing better protection for the rear end of the dump truck.

[0038] A connector 22 is installed on the other side of the fixing block 21. A mounting plate 27 is symmetrically installed below the connector 22. The mounting plate 27 is connected to the L-shaped bottom of the connector 22. A proximity sensor switch 26 is installed on both mounting plates 27. A positioning member 25 is provided below the two proximity sensor switches 26. A swing component 24 is provided on the positioning member 25. The proximity sensor switch 26 can monitor the rotation angle of the swing component 24. When the rotation angle of the swing component 24 exceeds the angle that the proximity sensor switch 26 can monitor, an alarm is triggered. The symmetrical arrangement of the proximity sensor switches 26 can avoid the occurrence of a single fault.

[0039] The positioning element 25 is installed through the two mounting plates 27, and the swing assembly 24 is positioned in the middle of the two mounting plates 27.

[0040] Positioning element 25 restricts the position of swing assembly 24 and provides conditions for the rotation of swing assembly 24. Swing assembly 24 can rotate on positioning element 25 when it comes into contact with retaining wall. During rotation, proximity sensor switch 26 monitors the position of swing assembly 24.

[0041] Protective plates 23 are provided on both sides of the two mounting plates 27, and the protective plates 23 are installed on the mounting plates 27 by fixing devices 3.

[0042] In the working environment of dump trucks, dust is often present. The protective plates 23 are set on both sides of the mounting plate 27 to protect the rotation environment of the swing component 24 and prevent dust from interfering with the proximity sensor switch 26, thus avoiding malfunction of the proximity sensor switch 26.

[0043] The swing assembly 24 includes a swing rod 241, which has two positioning slots 244. A positioning member 25 passes through one of the positioning slots 244 to restrict the position of the swing assembly 24.

[0044] Depending on the working environment, the position of the swing arm 241 can be adjusted through the two positioning slots 244 to avoid the situation where some retaining walls are high and some retaining walls are low. When the positioning piece 25 passes through the positioning slot 244, the swing arm 241 can rotate on the positioning piece 25 through one of the positioning slots 244.

[0045] One end of the swing arm 241 is connected to a touch plate 243. Connecting blocks 242 are installed on both sides of the end of the swing arm 241 near the touch plate 243. The connecting blocks 242 connect the swing arm 241 and the touch plate 243.

[0046] See Figure 4 and Figure 5 Two connecting blocks 242 connect the swing rod 241 and the touch plate 243, making the structure more stable. The touch plate 243 contacts the retaining wall and is subjected to the counter-thrust force of the retaining wall. The touch plate 243 moves, synchronously driving the swing rod 241 to rotate. When the swing rod 241 rotates, the proximity sensor 26 monitors it. When the swing rod 241 leaves the monitoring range of the proximity sensor 26, the proximity sensor 26 alarms.

[0047] By setting the touch plate 243 to contact the retaining wall, and receiving the counter-pushing force of the retaining wall, the touch plate 243 drives the swing arm 241 to rotate, and the proximity sensor 26 monitors it. When the swing arm 241 leaves the monitoring range of the proximity sensor 26, the proximity sensor 26 alarms, thus achieving the effect of alarming when the dump truck is reversing and unloading.

[0048] By setting two anti-collision plates 11 symmetrically on both sides of the fixed block 21, and setting a connecting plate 12 on each group of anti-collision plates 11, the connecting plate 12 is fixed to the anti-collision plate 11, which improves the protection effect for the steering axle and steering cylinder, and achieves the effect of increasing the activity space and expanding the protection range.

[0049] In the second embodiment, an LED light and a buzzer (not shown in the figure) are connected to the proximity sensor switch 26. The LED is installed on both sides of the anti-collision body so that it can be seen from the rearview mirror of the dump truck. The buzzer is installed on the protective plate 23 to avoid the influence of dust. By adding a dual alarm function of sound and light, when the rotation angle of the swing component 24 exceeds the set range, the sound and light alarms are triggered at the same time.

[0050] The alarm's installation location is optimized to be on both sides of the anti-collision body 1, ensuring that it can be detected by the driver from any angle.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] It should be understood that the terms "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A collision avoidance device for a dump truck, characterized in that: The device includes a collision protection body (1), on which a fall protection device (2) is installed. The fall protection device (2) includes a fixing block (21), one side of which is fixed to the collision protection body (1), and a connector (22) is installed on the other side of which. Mounting plates (27) are symmetrically installed below the connector (22). A proximity sensor switch (26) is installed on each of the two mounting plates (27). A positioning component (25) is provided below the two proximity sensor switches (26), and a swing component (24) is provided on the positioning component (25).

2. The anti-collision device for a dump truck according to claim 1, characterized in that: The positioning element (25) is installed through the two mounting plates (27), and the swing assembly (24) is located in the middle of the two mounting plates (27).

3. The anti-collision device for a dump truck according to claim 1, characterized in that: Includes a fixing device (3), and protective plates (23) are provided on both sides of the two mounting plates (27). The protective plates (23) are mounted on the mounting plates (27) by the fixing device (3).

4. The anti-collision device for a dump truck according to claim 2, characterized in that: The swing assembly (24) includes a swing rod (241) with two positioning slots (244) on the swing rod (241). The positioning element (25) passes through one of the positioning slots (244) to restrict the position of the swing assembly (24).

5. The anti-collision device for a dump truck according to claim 4, characterized in that: One end of the swing arm (241) is connected to a touch plate (243), and connecting blocks (242) are installed on both sides of the end of the swing arm (241) near the touch plate (243). The connecting blocks (242) connect the swing arm (241) and the touch plate (243).

6. The anti-collision device for a dump truck according to claim 3, characterized in that: The connector (22) is L-shaped, and two triangular plates are provided on the connector (22) to support the structure.

7. A collision avoidance device for a dump truck according to claim 6, characterized in that: The connector (22) is fixed to the fixing block (21) by the fixing device (3).

8. The anti-collision device for a dump truck according to claim 3, characterized in that: The anti-collision body (1) includes four anti-collision plates (11), and the anti-collision plates (11) are connected by connecting columns (13).

9. A collision avoidance device for a dump truck according to claim 8, characterized in that: The fixing block (21) is installed on the connecting column (13).

10. A collision avoidance device for a dump truck according to claim 9, characterized in that: Two anti-collision plates (11) are symmetrically arranged on both sides of the fixed block (21). Each anti-collision plate (11) is provided with a connecting plate (12), which is fixed to the anti-collision plate (11) by a fixing device (3).