A loader license plate fixing support

Abstract

The utility model provides a kind of loader license plate fixed support, it is related to engine equipment technical field, including license plate fixed plate and wire harness protection structure;License plate fixed plate bottom reserved mounting hole, license plate fixed plate passes through bottom mounting hole by bolt, fixed in the loader tail counterweight upper side;License plate fixed plate is reserved with license plate lamp fixed hole;Wire harness protection structure includes bending pipe and closing plate, bending pipe is arc metal pipe, closing plate is connected with bending pipe by welding mode, forms closed passage;License plate fixed plate is fixed with wire harness protection structure by welding mode.License plate lamp wire harness is connected directly with power supply by fixed plate below round hole and passes out through counterweight internal reserved pipeline, waterproof dustproof, improve wire harness service life.

Description

Technical Field

[0001] This utility model relates to the field of engine equipment technology, and in particular to a loader license plate fixing bracket. Background Technology

[0002] The statements in this section are merely background information relating to this disclosure and do not necessarily constitute prior art.

[0003] With the rapid growth in export demand for loaders, the need for license plate installation is also gradually increasing. Currently, the structural design of domestically produced loaders does not include a dedicated license plate mounting structure; some designs place the license plate fixing plate on the rear of the hood, which presents the following problems: (1) After the license plate is installed in a fixed position on the back of the engine cover, it will obstruct the heat dissipation channel, affect the air intake, and thus reduce the engine cooling efficiency, which will lead to overheating of the equipment after long-term operation. (2) The wiring harness needs to be extended from the power source to the license plate location over a long distance, with a complex path and lack of protection, which significantly increases the risk of failure. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a loader license plate fixing bracket, including a license plate fixing plate (1) and a wire harness protection structure; The license plate fixing plate (1) has a pre-drilled mounting hole at the bottom. The license plate fixing plate (1) is fixed above the tail counterweight of the loader by bolts passing through the bottom mounting hole. The license plate fixing plate (1) has a pre-drilled mounting hole for the license plate light. The wire harness protection structure includes a bent tube (2) and a sealing plate (3). The bent tube (2) is an arc-shaped metal tube. The sealing plate (3) is connected to the bent tube (2) by welding to form a sealed channel. The license plate fixing plate (1) is fixed to the wire harness protection structure by welding.

[0005] Furthermore, the distance between the bottom mounting hole and the loader's power supply is less than or equal to 40cm.

[0006] Furthermore, the license plate fixing plate (1) is made of stainless steel or galvanized steel plate.

[0007] Furthermore, the loader's tail counterweight has a reserved pipeline inside, and the wiring harness is led out from the battery box to the license plate fixing plate (1) through the reserved pipeline.

[0008] Furthermore, the diameter of the reserved conduit is 3-4 times the diameter of the wire harness.

[0009] Furthermore, waterproof sealing rings are provided at both ends of the reserved pipeline.

[0010] Furthermore, the surface of the license plate fixing plate (1) is provided with a reflective coating.

[0011] Furthermore, the bolt is a stainless steel anti-loosening bolt and is equipped with a spring washer.

[0012] Furthermore, the edge of the license plate fixing plate (1) is provided with a flange structure.

[0013] Compared with the prior art, the loader license plate fixing bracket provided by this utility model has the following advantages: the license plate light wiring harness passes through the round hole under the fixing plate and is directly connected to the power supply through the reserved pipe inside the counterweight, which is waterproof and dustproof and improves the service life of the wiring harness; the fixing position is diversified; and it will not affect the air intake of the rear windshield. Attached Figure Description

[0014] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0015] Figure 1 This is a front view of the loader license plate fixing bracket provided by this utility model; Figure 2 Side view of the loader license plate fixing bracket provided by this utility model; Figure 3 Top view of the loader license plate fixing bracket provided by this utility model; Figure 4 A perspective view of the loader license plate fixing bracket provided by this utility model; Figure 5 This is a schematic diagram showing how the license plate of the loader is fixed on the loader, as provided by this utility model.

[0016] In the picture: 1. License plate fixing plate; 2. Bending pipe; 3. Sealing plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] like Figure 1 This utility model provides a loader license plate fixing bracket, including a license plate fixing plate (1) and a wire harness protection structure; The license plate fixing plate (1) has a pre-drilled mounting hole at the bottom. The license plate fixing plate (1) is fixed above the tail counterweight of the loader by bolts passing through the bottom mounting hole. The license plate fixing plate (1) has a pre-drilled mounting hole for the license plate light. The wire harness protection structure includes a bending tube (2) and a sealing plate (3). The bending tube (2) is an arc-shaped metal tube used to reduce the bending stress of the wire harness. The sealing plate (3) is connected to the bending tube (2) by welding to form a sealed channel to achieve waterproof and dustproof protection. The license plate fixing plate (1) is fixed to the wire harness protection structure by welding.

[0019] The distance between the bottom mounting hole and the loader power supply is less than or equal to 40cm, so as to shorten the wiring harness length.

[0020] The license plate fixing plate (1) is made of stainless steel or galvanized steel plate. Both materials have good strength, with a tensile strength ≥300MPa, and can withstand the long-term load of the license plate and license plate light without deformation.

[0021] The loader's rear counterweight has a pre-installed conduit inside, through which the wiring harness is led from the battery box to the license plate fixing plate (1). As a fixed component of the loader, the counterweight's internal space is independent of the engine compartment and moving parts, providing a stable environment for the wiring harness. The pre-installed conduit and the counterweight are integrally molded, avoiding the impact of later drilling on the counterweight's structural strength.

[0022] The diameter of the reserved conduit is 3-4 times the diameter of the wire harness. For example, when the wire harness diameter is 6mm, the conduit diameter is 18-24mm. This size design can avoid excessive friction between the wire harness and the inner wall of the conduit, while reserving space for heat dissipation and slight movement of the wire harness, reducing fatigue damage caused by vibration.

[0023] The reserved pipeline is equipped with waterproof sealing rings at both ends. The sealing rings are made of nitrile rubber (NBR) with a hardness of 60±5 Shore A and a compression control of 20%-30%. They can achieve IP67 waterproof and dustproof rating (no water ingress after immersion in 1 meter of water for 30 minutes, and the dust protection level completely prevents dust intrusion), effectively resisting the erosion of harsh environments such as rainwater and mud.

[0024] The license plate fixing plate (1) has a reflective coating on its surface to improve nighttime visibility. The reflective coating uses glass microsphere reflective material with a thickness of 50-80μm, which meets the Class III requirements of GB / T18833-2012 "Road Traffic Reflective Film". Under nighttime lighting, it can form clear reflection within a distance of 100 meters, improving the nighttime visibility of the license plate and meeting the requirements of road safety regulations for nighttime visibility in various countries.

[0025] The bolts are stainless steel anti-loosening bolts and equipped with spring washers. The preferred bolt size is M8×30, made of 316 stainless steel (containing molybdenum, with corrosion resistance superior to 304), and the thread precision reaches 6g level; the spring washers are made of 65Mn material, with a hardness of 42-48HRC after heat treatment, and an elasticity decay rate of ≤5% / year, which can effectively prevent bolt loosening caused by loader vibration and ensure that the fixing plate is firmly installed.

[0026] The license plate fixing plate (1) has a flanged structure on its edge to enhance overall rigidity. The flanged structure is formed by cold stamping and is an integral structure with the fixing plate body, without the need for additional welding. This can increase the bending section modulus of the fixing plate by 40%-60% (finite element analysis shows that under the same load, the maximum deflection of the fixing plate with flanges is reduced from 2.5mm to less than 1.0mm), effectively enhancing overall rigidity and preventing the license plate from becoming skewed due to deformation of the fixing plate.

[0027] The working principle of this utility model is as follows: After the loader license plate mounting bracket is installed, the license plate is installed through the four license plate mounting holes on the license plate mounting plate, and the license plate light is installed through the two license plate light mounting holes on the license plate mounting plate. The license plate light wiring harness runs out from under the license plate mounting plate, passes through the sealed channel formed by the bent pipe and the sealing plate, and then is directly led to the battery box and connected to the power supply through the reserved pipe inside the rear counterweight of the loader.

[0028] In the description of this specification, the terms "connection", "installation", "fixing", "setting", etc. are interpreted in a broad sense. For example, "connection" can be a fixed connection or an indirect connection through an intermediate component without affecting the relationship between components and the technical effect. It can also be an integral connection or a partial connection. In such cases, those skilled in the art can understand the specific meaning of the above terms in this utility model or utility model according to the specific circumstances.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A loader license plate fixing bracket, characterized in that, Includes a license plate fixing plate (1) and a wiring harness protection structure; The license plate fixing plate (1) has a pre-drilled mounting hole at the bottom. The license plate fixing plate (1) is fixed above the tail counterweight of the loader by bolts passing through the bottom mounting hole. The license plate fixing plate (1) has a pre-drilled mounting hole for the license plate light. The wire harness protection structure includes a bent tube (2) and a sealing plate (3). The bent tube (2) is an arc-shaped metal tube. The sealing plate (3) is connected to the bent tube (2) by welding to form a sealed channel. The license plate fixing plate (1) is fixed to the wire harness protection structure by welding.

2. The loader license plate fixing bracket as described in claim 1, characterized in that, The distance between the bottom mounting hole and the loader's power supply is less than or equal to 40cm.

3. The loader license plate fixing bracket as described in claim 1, characterized in that, The license plate fixing plate (1) is made of stainless steel or galvanized steel plate.

4. The loader license plate fixing bracket as described in claim 1, characterized in that, The loader's tail counterweight has a reserved pipeline inside, and the wiring harness is led out from the battery box to the license plate fixing plate (1) through the reserved pipeline.

5. The loader license plate fixing bracket as described in claim 4, characterized in that, The diameter of the reserved conduit is 3-4 times the diameter of the wire harness.

6. The loader license plate fixing bracket as described in claim 4, characterized in that, The reserved pipeline is equipped with waterproof sealing rings at both ends.

7. The loader license plate fixing bracket as described in claim 1, characterized in that, The license plate fixing plate (1) has a reflective coating on its surface.

8. The loader license plate fixing bracket as described in claim 1, characterized in that, The bolts are stainless steel anti-loosening bolts and are equipped with spring washers.

9. The loader license plate fixing bracket as described in claim 1, characterized in that, The license plate fixing plate (1) has a flanged structure on its edge.

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