A heavy truck protection plate convenient to install

By using the plug-in rod and plug-in slot design between the collapsible energy-absorbing component and the main body of the bottom guard plate, the problems of laborious installation and safety risks of heavy truck bottom guard plates are solved, achieving convenient installation and efficient protection.

CN224528585UActive Publication Date: 2026-07-21SHITAISHI PLASTICS (SHIYAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHITAISHI PLASTICS (SHIYAN) CO LTD
Filing Date
2025-09-22
Publication Date
2026-07-21

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Abstract

The utility model discloses a heavy truck protection plate convenient to install, including the main part of bottom guard plate, the main part is connected with heavy truck chassis through a plurality of collapse energy -absorbing spare, the main part and collapse energy -absorbing spare are respectively set up and pass through each other's first bolt hole and second bolt hole, and the main part is provided with the elastic plug -in rod that is adjacent to first bolt hole, and the front end of plug -in rod is provided with the hook -like part, and the plug -in groove is set up on collapse energy -absorbing spare and is adjacent to second bolt hole, and the front end of plug -in rod is set up and passes through plug -in groove and is connected with collapse energy -absorbing spare through hook -like part. The utility model discloses plug -in rod and plug -in groove are mutually inserted and cooperate after, and through hook -like part is mutually hooked, can be carried out with positioning and preliminary fixed between the main part and heavy truck chassis, so that operating personnel can free both hands and carry out the operation of subsequent screw bolt, and the convenient degree of bottom guard plate installation has been improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of bottom protection plates, and in particular relates to a heavy truck protective plate that is easy to install. Background Technology

[0002] Heavy-duty truck underbody protection plates are an important component of heavy-duty trucks. They are protective devices specifically designed to protect the chassis of heavy-duty trucks. They are usually made of high-strength, wear-resistant materials and are designed to provide sufficient protection to prevent the chassis from being impacted or scratched, and to achieve dust and water resistance, thereby improving the safety and stability of the vehicle.

[0003] Existing bottom guard plates are usually fixed to the chassis of heavy trucks with bolts. In the traditional installation process, the bottom guard plate needs to be continuously lifted by manpower for installation. When working alone, the operator must hold the guard plate with one hand and operate the wrench with the other. This is not only laborious, but also prone to interruption of installation due to the guard plate slipping, and may even cause safety risks such as hand injury.

[0004] Therefore, it is necessary to improve the bottom guard plate in the existing technology. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects existing in the prior art and provide a heavy truck protective plate that is easy to install, thereby improving the ease of installation of the bottom protective plate.

[0006] To achieve the above objectives, the specific technical solution of this utility model for a conveniently installed heavy-duty truck protective plate is as follows:

[0007] A conveniently installed heavy-duty truck protective plate includes a main body of a bottom protective plate, which is connected to the heavy-duty truck chassis through multiple collapsible energy-absorbing components. The main body and the collapsible energy-absorbing components are respectively provided with a first bolt hole and a second bolt hole that are mutually connected. An elastic insertion rod is provided on the main body adjacent to the first bolt hole, and the front end of the insertion rod is provided with a hook-shaped part. An insertion groove is provided on the collapsible energy-absorbing component adjacent to the second bolt hole. The front end of the insertion rod passes through the insertion groove and is connected to the collapsible energy-absorbing component through the hook-shaped part.

[0008] Preferably, the plug rods are distributed parallel to the axis of the first bolt hole, and two are symmetrically arranged about the first bolt hole. The plug slots are symmetrically arranged about the second bolt hole, and the two plug slots correspond one-to-one with the two plug rods.

[0009] Preferably, the hook-shaped portion is disposed on the side of the plug rod opposite to the first bolt hole, and the hook-shaped portion is provided with a chamfered surface.

[0010] Preferably, the main body is provided with an arched portion, the first bolt hole and the two plug rods are all provided on the top surface of the arched portion, and the top surface of the arched portion is also provided with two slots, the slots being located on the side of the plug rod away from the first bolt hole.

[0011] Preferably, the collapsible energy absorber has a U-shaped groove structure, the second bolt hole and the insertion groove are both opened on one side wall of the collapsible energy absorber, a third bolt hole is opened on the other side wall of the collapsible energy absorber, and a distance sensor is provided on one inner wall of the collapsible energy absorber.

[0012] Preferably, the first direction is the extension direction of the U-shaped groove structure, and a plurality of ribs are distributed on the inner wall of the collapsible energy-absorbing component. Each of the ribs is arranged at intervals along the first direction and extends perpendicular to the first direction. A nut is provided at the second bolt hole to be fixedly connected to the inner wall of the collapsible energy-absorbing component.

[0013] Preferably, the width direction of the main body is the second direction, and the main body is provided with a plurality of longitudinal protrusions arranged at equal intervals along the second direction, the longitudinal protrusions extending perpendicular to the second direction.

[0014] Preferably, the main body is also provided with arc-shaped transverse ridges.

[0015] Preferably, a plurality of reinforcing ribs are provided around the arched portion, and each reinforcing rib extends outward from the arched portion as the center.

[0016] The easy-to-install heavy truck protective plate of this utility model has the following advantages: after the plug-in rod and the plug-in slot are plugged into each other, they are hooked together by the hook-shaped part, which can be used to position and initially fix the main body and the heavy truck chassis, so that the operator can free up both hands to perform subsequent bolt tightening operations, thus improving the convenience of the bottom protective plate installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection structure between the bottom protective plate and the collapsible energy-absorbing component of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 This is a schematic diagram of the collapsible energy-absorbing component of this utility model from one perspective.

[0020] Figure 4 This is a schematic diagram of the collapse energy-absorbing component of this utility model from another perspective.

[0021] Figure 5 This is a schematic diagram of the structure of the bottom protective plate of this utility model;

[0022] Figure 6 for Figure 5 Enlarged view of part B;

[0023] The markings in the diagram are as follows: 1. Main body; 2. Collapsible energy-absorbing component; 101. Longitudinal rib; 102. Reinforcing rib; 103. Opening; 104. Transverse rib; 105. Arched part; 106. Groove; 107. First bolt hole; 108. Connecting rod; 109. Hook-shaped part; 201. Rib; 202. Nut; 203. Connecting groove; 204. Distance sensor; 205. Second bolt hole; 206. Third bolt hole. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0025] The terms "top surface," "bottom surface," and "underside surface" refer to the normal operating state of the heavy truck bottom guard plate. They are used 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 component 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.

[0026] like Figure 1 and 2 As shown, a heavy-duty truck protective plate that is easy to install includes a main body 1 of the bottom protective plate. The main body 1 is connected to the heavy-duty truck chassis through multiple collapsible energy-absorbing components 2. The main body 1 and the collapsible energy-absorbing components 2 are respectively provided with a first bolt hole 107 and a second bolt hole 205 that are mutually connected. An elastic plug rod 108 is provided on the main body 1 adjacent to the first bolt hole 107. The front end of the plug rod 108 is provided with a hook-shaped part 109. The collapsible energy-absorbing component 2 is provided with a plug groove 203 adjacent to the second bolt hole 205. The front end of the plug rod 108 is provided through the plug groove 203 and is connected to the collapsible energy-absorbing component 2 through the hook-shaped part 109.

[0027] The aforementioned bottom guard plate is installed on the heavy truck chassis to protect the chassis. The first bolt hole 107 and the second bolt hole 205 are used to insert bolts. The bolts and nuts achieve the final fixed connection between the main body 1 and the heavy truck chassis. Because there is no connection between the main body 1 and the heavy truck chassis between the bolts, the operator needs to use one hand to hold the bottom guard plate while tightening the bolts with the other, greatly increasing the difficulty of the operation. To solve this problem, the bolts are first connected by a plug-in rod 108 to a plug-in slot 203, and then connected by a hook-shaped part 109, achieving positioning and initial connection between the main body 1 and the heavy truck chassis. During the subsequent bolt tightening process, the operator does not need to hold the main body 1 with one hand, allowing for two-handed bolt tightening, greatly improving the ease of bottom guard plate installation.

[0028] Compared with existing bottom guard plates that are directly bolted to the heavy truck chassis, the bottom guard plate of this application is further provided with a crumple-up energy-absorbing component 2 between the bottom guard plate and the heavy truck chassis. During installation, the crumple-up energy-absorbing component is first fixed to the heavy truck chassis with bolts, and then the bottom guard plate is installed on the crumple-up energy-absorbing component 2 with bolts. During the subsequent use of the bottom guard plate, when the bottom guard plate is subjected to a strong impact, part of the impact energy is absorbed through the crumple-up deformation of the crumple-up energy-absorbing component 2, thereby reducing the impact force transmitted to the heavy truck chassis and improving the protection effect on the heavy truck chassis.

[0029] Further improvements include, for example Figure 3 and 6 As shown, the plug rods 108 are distributed parallel to the axis of the first bolt hole 107, and two are symmetrically arranged about the first bolt hole 107. The plug grooves 203 are symmetrically arranged about the second bolt hole 205, and the two plug grooves 203 correspond one-to-one with the two plug rods 108. The hook-shaped part 109 is provided on the side of the plug rod 108 away from the first bolt hole 107, and the hook-shaped part 109 is provided with a chamfered surface. During the installation of the aforementioned bottom protective plate, the two insertion rods 108 are simultaneously inserted into the two insertion holes 203. The chamfered surface on the hook-shaped part 109 can guide the insertion of the insertion rods 108, causing the front ends of the two insertion rods 108 to bend towards each other. After insertion, the two insertion rods 108 are reset under the action of the elasticity of the insertion rods 108, so that the hook-shaped part 109 abuts against the inner wall of the collapsible energy-absorbing component 2, realizing the pre-connection and fixation between the main body 1 and the collapsible energy-absorbing component 2, which facilitates the subsequent bolt installation and tightening operation. By setting two sets of insertion rods 108 and insertion slots 203, the accuracy and firmness of the connection between the main body 1 and the collapsible energy-absorbing component 2 can be improved, which facilitates the subsequent bolt tightening operation.

[0030] Further improvements include, for example Figure 6As shown, the main body 1 is provided with an arched part 105, the first bolt hole 107 and two plug rods 108 are all provided on the top surface of the arched part 105, and the top surface of the arched part 105 is also provided with two slots 106, which are located on the side of the plug rods 108 away from the first bolt hole 107.

[0031] Specifically, the arched part 105 is integrally stamped with the main body 1. The arched part 105 arches towards the top surface of the main body 1 and forms a concave part on the bottom surface. The concave part can be used to accommodate the head of the bolt, thereby reducing the protruding part of the bottom surface of the main body 1 and making the bottom surface of the main body 1 relatively flat. At the same time, it can also protect the bolt and facilitate the disassembly and assembly of the bottom guard plate. The groove 106 allows the operator to put their fingers through the groove 106 and directly contact the plug rod 108 when disassembling the bottom guard plate. Then, by squeezing the two plug rods 108 inward, the hook-shaped part 109 is separated from the collapsible energy-absorbing part 2, thereby separating the main body 1 from the collapsible energy-absorbing part 2 and improving the ease of disassembly of the bottom guard plate.

[0032] Further improvements include, for example Figure 4 and 5 As shown, the collapsible energy absorber 2 has a U-shaped groove structure. The second bolt hole 205 and the insertion groove 203 are both opened on one side wall of the collapsible energy absorber 2. The third bolt hole 206 is opened on the other side wall of the collapsible energy absorber 2. A distance sensor 204 is provided on one inner wall of the collapsible energy absorber 2. Along the extension direction of the U-shaped groove structure is the first direction, a plurality of ribs 201 are distributed on the inner wall of the collapsible energy absorber 2. Each rib 201 is arranged at intervals along the first direction and extends perpendicular to the first direction. A nut 202 is provided at the second bolt hole 205 and is fixedly connected to the inner wall of the collapsible energy absorber 2.

[0033] In the structure of the aforementioned collapsible energy-absorbing component 2, the third bolt hole 206 is used for fixed connection with the chassis of the heavy truck via bolts and nuts, and the second bolt hole 205 is used for fixed connection with the main body 1 via bolts. Fixing the nut at the second bolt hole 205 facilitates subsequent direct tightening of the bolts, improving the ease of installation of the bottom guard plate. The ribs 201 enhance the structural strength of the collapsible energy-absorbing component 2, providing sufficient stability to support the main body 1 and ensuring the firmness of the main body 1's installation. During use, when the bottom guard plate collides and the resulting impact force exceeds the design threshold of the collapsible energy-absorbing component 2, the collapsible energy-absorbing component 2 undergoes plastic deformation. For the U-shaped channel structure, its plastic deformation mode is that the upper and lower side walls of the U-shaped channel move closer to each other, and the connection part deforms to absorb the kinetic energy generated by the collision, thereby reducing the impact force transmitted to the heavy truck chassis and improving the protection effect of the heavy truck chassis; the distance sensor 204 is used to detect the distance between the two side walls of the U-shaped channel structure. When a collision occurs, the distance between the two side walls decreases. After the distance sensor 204 detects the change in distance, it can transmit the information to the driver through the heavy truck's control system, so that the driver can understand the collision situation and stop the vehicle in time to prevent the collision from escalating further.

[0034] Further improvements include, for example Figure 1 and 5 As shown, the second direction is along the width of the main body 1. The main body 1 is provided with a plurality of longitudinal protrusions 101 arranged at equal intervals along the second direction. The longitudinal protrusions 101 extend perpendicular to the second direction. The main body 1 is also provided with arc-shaped transverse protrusions 104. The arched part 105 is provided with a plurality of reinforcing ribs 102 around its perimeter. Each reinforcing rib 102 extends outward from the arched part 105 as the center. The main body 1 is also provided with a plurality of openings 103.

[0035] In the above-mentioned bottom guard plate structure, the longitudinal rib 101, the transverse rib 104 and the reinforcing rib 102 are all integrally formed on the main body 1 to improve the structural strength of the main body 1, thereby improving the bottom guard plate's resistance to collisions and enhancing the protection effect on the heavy truck chassis; the opening 103 can drain water accumulated inside the bottom guard plate and also serve to cool the engine.

[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A heavy-duty truck protective plate that is easy to install, comprising a main body (1) of a bottom protective plate, characterized in that: The main body (1) is connected to the heavy truck chassis through multiple collapsible energy-absorbing components (2); The main body (1) and the collapsible energy-absorbing component (2) are respectively provided with a first bolt hole (107) and a second bolt hole (205) that are interconnected. An elastic plug rod (108) is provided on the main body (1) adjacent to the first bolt hole (107). A hook-shaped part (109) is provided at the front end of the plug rod (108). A plug groove (203) is provided on the collapsible energy-absorbing component (2) adjacent to the second bolt hole (205). The front end of the plug rod (108) is provided through the plug groove (203) and is connected to the collapsible energy-absorbing component (2) through the hook-shaped part (109).

2. The easy-to-install heavy-duty truck protective plate according to claim 1, characterized in that, The plug rods (108) are distributed parallel to the axis of the first bolt hole (107), and two are symmetrically arranged about the first bolt hole (107). The plug grooves (203) are symmetrically arranged about the second bolt hole (205). The two plug grooves (203) correspond one-to-one with the two plug rods (108).

3. The easy-to-install heavy-duty truck protective plate according to claim 2, characterized in that, The hook-shaped part (109) is disposed on the side of the plug rod (108) away from the first bolt hole (107), and the hook-shaped part (109) is provided with a chamfered surface.

4. The easy-to-install heavy-duty truck protective plate according to claim 2, characterized in that, The main body (1) is provided with an arched part (105), the first bolt hole (107) and the two plug rods (108) are both provided on the top surface of the arched part (105), and the top surface of the arched part (105) is also provided with two slots (106), the slots (106) are located on the side of the plug rods (108) away from the first bolt hole (107).

5. The easy-to-install heavy-duty truck protective plate according to claim 4, characterized in that, The collapsible energy absorber (2) has a U-shaped groove structure. The second bolt hole (205) and the insertion groove (203) are both opened on one side wall of the collapsible energy absorber (2). A third bolt hole (206) is opened on the other side wall of the collapsible energy absorber (2). A distance sensor (204) is provided on one inner wall of the collapsible energy absorber (2).

6. The easy-to-install heavy-duty truck protective plate according to claim 5, characterized in that, The first direction is the extension direction of the U-shaped groove structure. Multiple ribs (201) are distributed on the inner wall of the collapsible energy-absorbing component (2). Each rib (201) is arranged at intervals along the first direction and extends perpendicular to the first direction. A nut (202) is provided at the second bolt hole (205) and is fixedly connected to the inner wall of the collapsible energy-absorbing component (2).

7. The easy-to-install heavy-duty truck protective plate according to claim 1, characterized in that, The second direction is along the width direction of the main body (1). The main body (1) is provided with a plurality of longitudinal protrusions (101) arranged at equal intervals along the second direction. The longitudinal protrusions (101) extend perpendicular to the second direction.

8. The easy-to-install heavy-duty truck protective plate according to claim 7, characterized in that, The main body (1) is also provided with an arc-shaped transverse ridge (104).

9. The easy-to-install heavy-duty truck protective plate according to claim 4, characterized in that, The arched portion (105) is provided with a plurality of reinforcing ribs (102) around its perimeter, and each reinforcing rib (102) extends outward from the arched portion (105) as the center.