Semi-trailer chassis with overweight alarm structure

Abstract

The utility model discloses a semitrailer chassis equipped with an overweight alarm structure, which comprises a frame, the top of the frame is provided with a container, the inner cavity of the container is fixedly connected with two symmetrical mounting racks, the tops of the mounting racks are provided with two symmetrical sensing devices, and the sensing devices are fixedly connected with the container. The surface of the sensing device is fixedly connected with two symmetrical connecting pieces. By pulling the pull block, the clamping rod slides upwards to be separated from the inner cavity of the fixing frame, at the moment, the clamping rod extrudes the spring through the limiting ring, the spring is contracted, the connecting piece is pushed to enter the inner cavity of the fixing frame, the pull block is loosened, the spring is stretched, and the clamping rod and the connecting piece are clamped; therefore, the purposes that the weight sensing device can be fixed through the clamping and fixing structure, it is avoided that much time needs to be consumed for replacing the weight sensing device of the semi-trailer chassis, and normal use of the overweight alarm device is guaranteed are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of semi-trailer chassis technology, and in particular relates to a semi-trailer chassis equipped with an overload alarm structure. Background Technology

[0002] Semi-trailer chassis typically lack front wheels, usually consisting of only one axle. A towing seat is located at the front, connected to the tractor unit's towing saddle via a towing pin. The rear half of the chassis is used to carry cargo and house components such as axles and suspension. Structurally, it requires partial support from the tractor unit. Resistance strain gauge load cells are usually bolted to the axle-to-chassis connections and other locations on the semi-trailer chassis. When the vehicle is under load, the elastic body deforms, causing a change in the resistance of the strain gauge, which in turn outputs an electrical signal corresponding to the weight. This signal is received by an information processing device and then sent to an alarm device, which finally triggers an alarm to prevent the semi-trailer chassis from being overloaded.

[0003] Currently, most semi-trailer chassis are equipped with overload alarm structures. The main component of the overload alarm structure is the weight sensor. After prolonged use, the weight sensor may become damaged and need to be replaced. Replacing the weight sensor is troublesome. Therefore, there is a need for a semi-trailer chassis equipped with an overload alarm structure that can fix the weight sensor in place using a locking mechanism. This avoids the time-consuming process of replacing the weight sensor on the semi-trailer chassis and ensures the normal operation of the overload alarm structure. Utility Model Content

[0004] The purpose of this utility model is to provide a semi-trailer chassis equipped with an overload alarm structure, which can fix the weight sensor through a locking structure, avoiding the time-consuming replacement of the weight sensor of the semi-trailer chassis, and ensuring the normal use of the overload alarm device, thereby solving the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A semi-trailer chassis equipped with an overload alarm structure includes a frame, a cargo box is provided on the top of the frame, two symmetrical mounting brackets are fixedly connected to the inner cavity of the cargo box, two symmetrical sensing devices are provided on the top of the mounting brackets, two symmetrical connecting pieces are fixedly connected to the surface of the sensing devices, two pairs of symmetrical fixing brackets are fixedly connected to the top of the mounting brackets, the sensing devices are located between the two symmetrical fixing brackets, the connecting pieces are located below the fixing brackets, a connecting frame is fixedly connected to the top of the fixing brackets, a locking rod is provided through the top of the connecting frame, a limit ring is fixedly connected to the surface of the locking rod, the limit ring is located in the inner cavity of the connecting frame, a spring is sleeved on the surface of the locking rod, a pull block is fixedly connected to the top of the locking rod, guardrails are fixedly connected to the front and back of the frame, and a horn alarm device is fixedly installed on the side of the guardrail away from the frame by bolts, and the sensing device is electrically connected to the horn alarm device.

[0006] Preferably, the bottom of the frame is fixedly connected to two symmetrical retractable support legs, and the surface of the retractable support legs is provided with a throttle.

[0007] Preferably, the mounting bracket is an I-beam, the top of the sensing device is higher than the top of the vehicle frame, and the connector is rectangular.

[0008] Preferably, the fixing frame is L-shaped, the connecting frame is inverted U-shaped, the top of the spring is fixedly connected to the top of the inner cavity of the connecting frame, and the bottom of the spring is fixedly connected to the top of the fixing frame.

[0009] Preferably, the surface of the pull block is fixedly connected with two symmetrical torsion bars, and the guardrail is in the shape of a fence.

[0010] The beneficial effects of this utility model are:

[0011] 1. This utility model allows the lever to slide upwards and disengage from the inner cavity of the fixing frame by pulling the pull block. At this time, the lever will compress the spring through the limiting ring, causing the spring to contract and push the connecting piece into the inner cavity of the fixing frame. Releasing the pull block allows the spring to extend, so that the lever and the connecting piece are engaged. This achieves the purpose of fixing the weight sensor device through the locking structure, avoiding the time-consuming replacement of the weight sensor device on the semi-trailer chassis, and ensuring the normal use of the overload alarm device.

[0012] 2. This utility model, through the setting of retractable support legs, allows the retractable support legs to extend when the frame is idle, thus supporting the frame and eliminating the need for the user to place a support frame at the bottom of the frame, ensuring the stability of the frame when it is not in use. Attached Figure Description

[0013] in:

[0014] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;

[0015] Figure 2 This is a perspective view of a semi-trailer chassis according to an embodiment of the present invention.

[0016] Figure 3 This is a three-dimensional disassembled schematic diagram of a fastening structure according to an embodiment of the present invention;

[0017] Figure 4 This is one embodiment of the present utility model. Figure 3 A magnified view of point A in the middle.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Frame, 2. Cargo box, 3. Mounting bracket, 4. Sensor, 5. Connector, 6. Fixing bracket, 7. Connecting bracket, 8. Locking rod, 9. Limiting ring, 10. Spring, 11. Pull block, 12. Guardrail, 13. Horn alarm device, 14. Telescopic support leg. Detailed Implementation

[0020] In the following description, embodiments of the semi-trailer chassis equipped with an overload alarm structure of the present invention will be described with reference to the accompanying drawings.

[0021] Example 1:

[0022] Figure 1-4This invention illustrates a semi-trailer chassis equipped with an overload alarm structure according to an embodiment of the present invention. It includes a frame 1, with two symmetrical retractable support legs 14 fixedly connected to the bottom of the frame 1. Each retractable support leg 14 has a throttle handle on its surface. When the frame 1 is idle, activating the retractable support legs 14 extends them, providing support to the frame 1. This eliminates the need for the user to place a support frame under the frame 1, ensuring the stability of the frame 1 when idle. A cargo box 2 is located on the top of the frame 1. Two symmetrical mounting brackets 3 are fixedly connected to the inner cavity of the cargo box 2. The mounting brackets 3 are I-beams. The top of the sensing device 4 is higher than the top of the frame 1. The connecting piece 5 is rectangular. Two symmetrical sensing devices 4 are provided. Two symmetrical connectors 5 are fixedly connected to the surface of the sensing devices 4. Two pairs of symmetrical fixing frames 6 are fixedly connected to the top of the mounting frame 3. The sensing devices 4 are located between the two symmetrical fixing frames 6. The connectors 5 are located below the fixing frames 6. A connecting frame 7 is fixedly connected to the top of the fixing frame 6. A locking rod 8 is provided through the top of the connecting frame 7. A limit ring 9 is fixedly connected to the surface of the locking rod 8. The limit ring 9 is located in the inner cavity of the connecting frame 7. A spring 10 is sleeved on the surface of the locking rod 8. A pull block 11 is fixedly connected to the top of the locking rod 8. Guardrails 12 are fixedly connected to both the front and back of the frame 1. A horn alarm device 13 is fixedly installed on the side of the guardrail 12 away from the frame 1 by bolts. The sensing devices 4 and the horn alarm device 13 are electrically connected.

[0023] Example 2:

[0024] Figure 1-4This invention illustrates a semi-trailer chassis equipped with an overload alarm structure according to an embodiment of the present invention. It includes a frame 1, a cargo box 2 mounted on the top of the frame 1, two symmetrical mounting brackets 3 fixedly connected to the inner cavity of the cargo box 2, two symmetrical sensing devices 4 mounted on the top of the mounting brackets 3, two symmetrical connecting pieces 5 fixedly connected to the surface of the sensing devices 4, two pairs of symmetrical fixing brackets 6 fixedly connected to the top of the mounting brackets 3, the sensing devices 4 located between the two symmetrical fixing brackets 6, the connecting pieces 5 located below the fixing brackets 6, the fixing brackets 6 being L-shaped, the connecting brackets 7 being inverted U-shaped, and the top of a spring 10 fixedly connected to the top of the inner cavity of the connecting bracket 7. The bottom of the frame 0 is fixedly connected to the top of the fixed frame 6. The top of the fixed frame 6 is fixedly connected to the connecting frame 7. The top of the connecting frame 7 is provided with a locking rod 8. The surface of the locking rod 8 is fixedly connected to a limiting ring 9. The limiting ring 9 is located in the inner cavity of the connecting frame 7. The surface of the locking rod 8 is fitted with a spring 10. The top of the locking rod 8 is fixedly connected to a pull block 11. The surface of the pull block 11 is fixedly connected to two symmetrical torsion bars. The guardrail 12 is in the shape of a fence. The front and back of the frame 1 are fixedly connected to the guardrail 1. The side of the guardrail 12 away from the frame 1 is fixedly installed with a horn alarm device 13 by bolts. The sensor device 4 is electrically connected to the horn alarm device 13.

[0025] Working principle: When using this utility model, the user pulls the pull block 11, causing the locking rod 8 to move upward and disengage from the inner cavity of the fixing frame 6. At this time, the locking rod 8 will squeeze the spring 10 through the limiting ring 9, causing the spring 10 to contract and push the sensing device 4, so that the connecting piece 5 enters the inner cavity of the fixing frame 6. Releasing the pull block 11 allows the spring 10 to extend, allowing the spring 10 to enter the inner cavity of the fixing frame 6 and engage with the connecting piece 5, thus completing the fixation of the sensing device 4. This avoids the time-consuming process of replacing the weight sensing device of the semi-trailer chassis, ensuring the normal operation of the overload alarm device. Through the setting of the retractable support leg 14, when the frame 1 is idle, the retractable support leg 14 can be activated to extend and support the frame 1, avoiding the need for the user to place a support frame at the bottom of the frame 1, thus ensuring the stability of the frame 1 when it is idle.

[0026] In summary, this semi-trailer chassis equipped with an overload alarm structure allows the locking rod 8 to slide upwards and disengage from the inner cavity of the fixing frame 6 by pulling the pull block 11. At this time, the locking rod 8 will compress the spring 10 through the limiting ring 9, causing the spring 10 to contract and push the connecting piece 5 into the inner cavity of the fixing frame 6. Releasing the pull block 11 allows the spring 10 to extend, causing the locking rod 8 to engage with the connecting piece 5. This achieves the goal of fixing the weight sensor through the locking structure, avoiding the time-consuming replacement of the weight sensor of the semi-trailer chassis, and ensuring the normal operation of the overload alarm device.

Claims

1. A semi-trailer chassis equipped with an overloading alarm structure, characterized in that, The utility model relates to a vehicle frame with alarm device, including vehicle frame (1), the top of vehicle frame (1) is provided with the goods box (2), the inner chamber of goods box (2) is fixedly connected with two symmetrical mounting bracket (3), the top of mounting bracket (3) is provided with two symmetrical sensing device (4), the surface of sensing device (4) is fixedly connected with two symmetrical connecting piece (5), the top of mounting bracket (3) is fixedly connected with two pairs of symmetrical fixed frame (6), sensing device (4) is located between two symmetrical fixed frame (6), connecting piece (5) is located below fixed frame (6), the top of fixed frame (6) is fixedly connected with connecting frame (7), the top of connecting frame (7) is provided with the clamping rod (8) in the through, the surface of clamping rod (8) is fixedly connected with the limit ring (9), and the limit ring (9) is located in the inner chamber of connecting frame (7), the surface of clamping rod (8) is equipped with spring (10), the top of clamping rod (8) is fixedly connected with pull block (11), the front and back of vehicle frame (1) are fixedly connected with guardrail (12), and the guardrail (12) is fixedly installed with whistle alarm device (13) on the side away from vehicle frame (1) through bolt, and sensing device (4) is electrically connected with whistle alarm device (13).

2. A semi-trailer chassis equipped with an overweight warning structure according to claim 1, characterized in that, The bottom of the vehicle frame (1) is fixedly connected with two symmetrical telescopic supporting legs (14), and the surface of the telescopic supporting legs (14) is provided with a handlebar.

3. A semi-trailer chassis equipped with an overweight warning structure according to claim 2, characterized in that, The mounting bracket (3) is an I-shaped steel, the top of the sensing device (4) is higher than the top of the vehicle frame (1), and the connecting piece (5) is a rectangle.

4. The semi-trailer chassis with an overweight warning structure of claim 3, wherein, The fixed frame (6) is L-shaped, the connecting frame (7) is inverted U-shaped, the top of the spring (10) is fixedly connected with the top of the inner cavity of the connecting frame (7), and the bottom of the spring (10) is fixedly connected with the top of the fixed frame (6).

5. A semi-trailer chassis equipped with an overweight warning structure according to claim 4, characterized in that, The surface of the pull block (11) is fixedly connected with two symmetrical torsion bars, and the guardrail (12) is in the form of a fence.

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