An anti-collision structure inside a refrigerated vehicle compartment

Abstract

The utility model belongs to refrigeration van anti -collision technical field especially relates to a kind of inside anti-collision structure of refrigeration van, including van body, the left and right two sides inner wall surface of van body is covered with buffer pad, and the buffer pad is made of energy-absorbing foam material;Anti-collision rod, the left and right two ends inboard of van body are respectively equipped with a group, and multiple are arranged along the height direction of van body with equal interval in each group anti-collision rod, and each anti-collision rod is connected with van body by two groups of pressure measuring components;Buffering component, the buffering component is arranged between the anti-collision rod and the van body, for absorbing collision energy and slowing down the rebound of anti-collision rod, and multiple buffering components and two groups of pressure measuring components are interval arrangement.The utility model cooperates and forms multistage buffering effect, and the impact force of collision to van body and goods is greatly reduced, and the anti-collision performance of van body is significantly improved, and it is also beneficial to the efficient protection of goods.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerated truck anti-collision technology, and in particular relates to an anti-collision structure inside a refrigerated truck. Background Technology

[0002] The primary function of refrigerated truck compartments is to transport temperature-sensitive goods, such as food and pharmaceuticals. Refrigerated truck compartments maintain the temperature within a preset range using mechanical refrigeration units, ensuring that goods are not damaged by temperature fluctuations during transport. During operation, goods are prone to collisions with the compartment, which can easily lead to damage to both the goods and the compartment; therefore, the compartment is usually equipped with anti-collision structures.

[0003] Chinese utility model patent CN221986334U discloses an anti-collision structure for the interior of a refrigerated truck compartment. Through the cooperation of a shock-absorbing device, a drive motor, a threaded rod, a moving device, and a dryer, it is beneficial to clamp and fix the packed refrigerated food, avoiding damage to the refrigerated food inside the compartment from collisions. It can clamp and fix refrigerated food of different sizes, and at the same time, it can ensure that the refrigerated food is placed stably, improving the stability of the refrigerated food. When water vapor appears on the inner wall of the compartment, it is beneficial to dry the water vapor on the inner wall of the compartment. It is easy to operate and simple to use, providing convenience for users.

[0004] Research revealed that the aforementioned solutions lacked buffer functionality, resulting in poor protection for the refrigerated truck compartment. Furthermore, the presence of multiple protrusions formed by grooves on the interior floor of the compartment negatively impacted the interior layout. This hindered the normal movement of the flatbed cart during loading and unloading, severely disrupting cargo transfer. Therefore, there is an urgent need to improve the existing anti-collision structure of refrigerated truck compartments and provide a new anti-collision structure for refrigerated truck compartments. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a reasonably designed, simple structure with multiple buffer functions and better protection for the interior of refrigerated truck compartments, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A collision avoidance structure for the interior of a refrigerated truck compartment, comprising: The carriage body, the inner walls on both the left and right sides of the carriage body are covered with cushioning pads; The anti-collision bars are provided on the inner sides of the left and right ends of the carriage body, and multiple anti-collision bars are provided at equal intervals along the height direction of the carriage body in each group. Each anti-collision bar is connected to the carriage body through two sets of pressure measuring components. A buffer assembly is disposed between the anti-collision bar and the vehicle body to absorb collision energy and slow down the rebound of the anti-collision bar. Multiple sets of the buffer assemblies and two sets of pressure measuring assemblies are arranged at intervals. A bracket for installing the buffer assembly is also fixedly installed on the inner wall of the vehicle body. An airbag shock absorption mechanism, comprising a buffer airbag located between a buffer assembly and a pressure measuring assembly.

[0007] Preferably, the buffer pad is made of energy-absorbing foam material, which has a multi-layer composite structure, including an outermost wear-resistant layer, a middle energy-absorbing layer, and a buffer layer close to the carriage body. The wear-resistant layer is made of high-molecular wear-resistant material, the energy-absorbing layer is made of polyurethane foam material, and the buffer layer is made of EVA foam material.

[0008] Preferably, an air pump is also fixed on the top inner wall of the carriage body, the output end of the air pump is fixedly connected to the rear end of the horizontal tube, the horizontal tube is fixedly installed on the top inner wall of the carriage body, and a flexible hose is fixedly connected between the top of the buffer airbag and the horizontal tube.

[0009] Preferably, the buffer assembly includes a damper, a movable block, a first spring, a first connecting rod, and a second connecting rod. Movable blocks are fixed at both ends of the damper. A first spring, which is fixedly connected to both movable blocks, is movably sleeved on the outside of the damper. A first connecting rod and a second connecting rod are respectively hinged to both sides of the movable block.

[0010] Preferably, the two movable blocks are arranged symmetrically about the anti-collision bar, the first link and the second link are symmetrical and of equal length, the end of the first link away from the movable block is hinged to the anti-collision bar, and the end of the second link away from the movable block is hinged to the bracket.

[0011] Preferably, the pressure measuring assembly includes an inner rod, an outer rod, a telescopic pressure sensor, and a second spring. One end of the inner rod is fixedly connected to the anti-collision rod, and the outer rod is slidably sleeved on the other end of the inner rod, with a telescopic pressure sensor installed between the two. The outer rod is sleeved on the outer side, and the two ends of the second spring are fixedly connected to the buffer pad and the anti-collision rod, respectively.

[0012] Preferably, the system also includes a control module located inside the vehicle's cockpit. The control module is electrically connected to both the telescopic pressure sensor and the air pump. The control module is used to control the air pump to inflate or deflate the airbag based on the pressure signal detected by the telescopic pressure sensor.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the anti-collision bar is connected to the carriage body through multiple sets of pressure measuring components and multiple sets of buffer components. When the cargo shakes and collides with the anti-collision bar, the anti-collision bar can be displaced towards the carriage body. At this time, the first spring, the damper and the second spring can absorb the collision energy and slow down the rebound of the anti-collision bar, forming a multi-level buffering effect, which greatly reduces the impact force of the collision on the carriage body and the cargo, significantly improves the anti-collision performance of the carriage body, and is also conducive to the efficient protection of the cargo.

[0014] The energy-absorbing foam material of this invention adopts a multi-layer composite structure. The outermost wear-resistant layer can prevent wear on the energy-absorbing layer. The polyurethane energy-absorbing layer can absorb collision energy, and the EVA buffer layer can further buffer and reduce shock. By utilizing the complementary properties of different materials, the absorption and dispersion of collision energy can be enhanced. Furthermore, by using the telescopic pressure sensor between the inner and outer rods, when the pressure is too high, the air pump can be activated to inflate multiple buffer airbags through the horizontal tube and hose, forming an additional protective barrier between the anti-collision bar and the buffer pad, further reducing the damage caused by the collision to the carriage or cargo, and providing stronger protection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows: Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional right-side cross-sectional structure of this utility model; Figure 3 This is a top view of the anti-collision bar and pressure measuring component of this utility model; Figure 4 This is a top view sectional diagram of the pressure measuring component of this utility model; Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0016] In the picture: 1. Carriage body; 2. Buffer pad; 3. Anti-collision bar; 4. Buffer assembly; 41. Damper; 42. Moving block; 43. First spring; 44. First connecting rod; 45. Second connecting rod; 5. Pressure measuring assembly; 51. Inner rod; 52. Outer rod; 53. Telescopic pressure sensor; 54. Second spring; 6. Buffer airbag; 7. Air pump; 8. Horizontal tube; 9. Hose; 10. Bracket. Detailed Implementation

[0017] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings: like Figure 1-5 As shown in one example, the anti-collision structure inside the refrigerated truck compartment of this utility model includes: The carriage body 1 has cushioning pads 2 on both the left and right inner walls, which are made of energy-absorbing foam material. Anti-collision bars 3 are provided on the inner sides of the left and right ends of the carriage body 1. Each set of anti-collision bars 3 is provided at equal intervals along the height direction of the carriage body 1. Each anti-collision bar 3 is connected to the carriage body 1 through two sets of pressure measuring components 5. The buffer assembly 4 is disposed between the anti-collision bar 3 and the car body 1 to absorb collision energy and slow down the rebound of the anti-collision bar 3. Multiple sets of buffer assemblies 4 and two sets of pressure measuring assemblies 5 are arranged at intervals. A bracket 10 for installing the buffer assembly 4 is also fixedly installed on the inner wall of the car body 1. The airbag shock absorption mechanism includes a buffer airbag 6, which is located between the buffer assembly 4 and the pressure measuring assembly 5.

[0018] As a preferred embodiment, based on the above structure, the energy-absorbing foam material is preferably a multi-layer composite structure, including an outermost wear-resistant layer, an intermediate energy-absorbing layer, and a buffer layer close to the carriage body 1. The wear-resistant layer is made of a high-molecular wear-resistant material, the energy-absorbing layer is made of polyurethane foam material, and the buffer layer is made of EVA foam material.

[0019] In this embodiment, by utilizing the complementary properties of different materials, the absorption and dispersion of collision energy can be effectively improved.

[0020] As a preferred embodiment, based on the above structure, preferably, an air pump 7 is also fixed on the top inner wall of the carriage body 1, the output end of the air pump 7 is fixedly connected to the rear end of the horizontal pipe 8, the horizontal pipe 8 is fixedly installed on the top inner wall of the carriage body 1, and a hose 9 is fixedly connected between the top of the buffer airbag 6 and the horizontal pipe 8.

[0021] In this embodiment, when the air pump 7 is turned on, it is convenient to inflate multiple buffer airbags 6 through the hose 9, thereby forming an additional protective barrier between the anti-collision bar 3 and the buffer pad 2, further reducing the damage caused by the collision to the carriage or cargo.

[0022] In a preferred embodiment, based on the above structure, the buffer assembly 4 preferably includes a damper 41, a movable block 42, a first spring 43, a first connecting rod 44, and a second connecting rod 45. The movable block 42 is fixed at both ends of the damper 41. The first spring 43, which is fixedly connected to both movable blocks 42, is movably sleeved on the outside of the damper 41. The first connecting rod 44 and the second connecting rod 45 are respectively hinged to both sides of the movable block 42.

[0023] As a preferred embodiment, based on the above structure, preferably, the two movable blocks 42 are arranged symmetrically about the anti-collision rod 3, the first connecting rod 44 and the second connecting rod 45 are symmetrical and have the same length, the end of the first connecting rod 44 away from the movable block 42 is hinged to the anti-collision rod 3, and the end of the second connecting rod 45 away from the movable block 42 is hinged to the bracket 10.

[0024] In a preferred embodiment, based on the above structure, the pressure measuring component 5 preferably includes an inner rod 51, an outer rod 52, a telescopic pressure sensor 53, and a second spring 54. One end of the inner rod 51 is fixedly connected to the anti-collision rod 3, and the outer rod 52 is slidably sleeved on the other end of the inner rod 51, with the telescopic pressure sensor 53 installed between the two. The second spring 54 is sleeved on the outer side of the outer rod 52, and the two ends of the second spring 54 are fixedly connected to the buffer pad 2 and the anti-collision rod 3, respectively.

[0025] In this embodiment, the first spring 43, damper 41 and second spring 54 in the buffer assembly 4 and pressure measuring assembly 5 can absorb the collision energy and slow down the rebound of the anti-collision bar 3, forming a multi-level buffer effect in a coordinated manner, which greatly reduces the impact force of the collision on the carriage body 1 and the cargo, and significantly improves the anti-collision performance of the carriage body 1.

[0026] In a preferred embodiment, based on the above structure, the present invention further includes a control module located inside the vehicle's driver's cabin. The control module is electrically connected to the telescopic pressure sensor 53 and the air pump 7. The control module is used to control the air pump 7 to start inflating or deflating the buffer airbag 6 according to the pressure signal detected by the telescopic pressure sensor 53.

[0027] In this embodiment, the telescopic pressure sensor 53 allows the driver to easily detect the pressure intensity and promptly activate the air pump 7 to inflate the airbag 6.

[0028] The working principle of this utility model is as follows: During cargo transportation, when the cargo sways and collides with the anti-collision bar 3, the anti-collision bar 3 can be pressed and moved towards the buffer pad 2. Since the anti-collision bar 3 is connected to the carriage body 1 through multiple sets of buffer components 4 and multiple sets of pressure measuring components 5, when the anti-collision bar 3 moves, the rotation and compression of the first link 44 and the second link 45 can push the two movable blocks 42 to move in opposite directions. Therefore, when there is a collision, the first spring 43, the damper 41 and the second spring 54 can absorb the collision energy and slow down the rebound of the anti-collision bar 3, forming a multi-level buffering effect, which greatly reduces the impact force of the collision on the carriage body 1 and the cargo. In addition, the second spring 54 can transfer part of the impact force to the buffer pad 2. The buffer pad 2 is made of energy-absorbing foam material. Its outermost wear-resistant layer can prevent the energy-absorbing layer from wearing out. The energy-absorbing layer of polyurethane material can absorb the collision energy, and the buffer layer of EVA material can further buffer and reduce shock. By using the complementary properties of different materials, the absorption and dispersion of collision energy can be enhanced. While the anti-collision bar 3 moves, the telescopic pressure sensor 53 set between the inner bar 51 and the outer bar 52 can monitor the pressure intensity after buffering. If the pressure is still too high, the driver can also turn on the air pump 7 by using the control module located inside the vehicle's driver's cabin. The horizontal tube 8 and the hose 9 can be used to inflate multiple buffer airbags 6. The inflated buffer airbags 6 can form an additional protective barrier between the anti-collision bar 3 and the buffer pad 2 to buffer the impact force. They can also fully disperse the impact force to all parts of the buffer pad 2, further reducing the damage to the passenger compartment or cargo caused by the collision, and providing stronger protection. It should be noted that the telescopic pressure sensor 53 and the air pump 7 are powered by the vehicle's power supply system. The telescopic pressure sensor 53, the air pump 7, and the control module located inside the vehicle's cockpit are all existing electrical components, and their specific control methods are all mature technologies. They are not the key technical directions of this case, so existing technologies are directly cited and will not be described in detail.

[0029] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A collision-resistant structure for the interior of a refrigerated truck compartment, characterized in that, include: The carriage body (1) has cushioning pads (2) covering the inner walls on both the left and right sides. Anti-collision bar (3), the anti-collision bar (3) is provided on the inner side of the left and right ends of the carriage body (1), and each set of anti-collision bars (3) is provided at equal intervals along the height direction of the carriage body (1). Each anti-collision bar (3) is connected to the carriage body (1) through two sets of pressure measuring components (5). The buffer assembly (4) is disposed between the anti-collision bar (3) and the carriage body (1) to absorb collision energy and slow down the rebound of the anti-collision bar (3). Multiple sets of the buffer assemblies (4) and two sets of pressure measuring assemblies (5) are arranged at intervals. A bracket (10) for installing the buffer assembly (4) is also fixedly installed on the inner wall of the carriage body (1). An airbag shockproof mechanism, comprising a buffer airbag (6) located between a buffer assembly (4) and a pressure measuring assembly (5).

2. The anti-collision structure inside a refrigerated truck compartment according to claim 1, characterized in that: The buffer pad (2) is made of energy-absorbing foam material. The energy-absorbing foam material has a multi-layer composite structure, including an outermost wear-resistant layer, a middle energy-absorbing layer, and a buffer layer close to the carriage body (1). The wear-resistant layer is made of high-molecular wear-resistant material, the energy-absorbing layer is made of polyurethane foam material, and the buffer layer is made of EVA foam material.

3. The anti-collision structure inside a refrigerated truck compartment according to claim 1, characterized in that: An air pump (7) is fixed on the top inner wall of the carriage body (1). The output end of the air pump (7) is fixedly connected to the rear end of the horizontal pipe (8). The horizontal pipe (8) is fixedly installed on the top inner wall of the carriage body (1). A hose (9) is fixedly connected between the top of the buffer airbag (6) and the horizontal pipe (8).

4. The anti-collision structure inside a refrigerated truck compartment according to claim 1, characterized in that: The buffer assembly (4) includes a damper (41), a movable block (42), a first spring (43), a first connecting rod (44), and a second connecting rod (45). The two ends of the damper (41) are fixed with movable blocks (42). The outer side of the damper (41) is movably sleeved with a first spring (43) that is fixedly connected to both movable blocks (42). The two sides of the movable block (42) are respectively hinged with a first connecting rod (44) and a second connecting rod (45).

5. The anti-collision structure inside a refrigerated truck compartment according to claim 4, characterized in that: The two movable blocks (42) are arranged symmetrically about the anti-collision bar (3). The first connecting rod (44) and the second connecting rod (45) are symmetrical and have the same length. The end of the first connecting rod (44) away from the movable block (42) is hinged to the anti-collision bar (3), and the end of the second connecting rod (45) away from the movable block (42) is hinged to the bracket (10).

6. The anti-collision structure inside a refrigerated truck compartment according to claim 1, characterized in that: The pressure measuring component (5) includes an inner rod (51), an outer rod (52), a telescopic pressure sensor (53), and a second spring (54). One end of the inner rod (51) is fixedly connected to the anti-collision rod (3). The outer rod (52) is slidably sleeved on the other end of the inner rod (51), and a telescopic pressure sensor (53) is installed between the two. The second spring (54) is sleeved on the outer side of the outer rod (52), and the two ends of the second spring (54) are fixedly connected to the buffer pad (2) and the anti-collision rod (3) respectively.

7. The anti-collision structure inside a refrigerated truck compartment according to claim 6, characterized in that: It also includes a control module located inside the vehicle's cockpit. The control module is electrically connected to the telescopic pressure sensor (53) and the air pump (7). The control module is used to control the air pump (7) to start inflating or deflating the buffer airbag (6) according to the pressure signal detected by the telescopic pressure sensor (53).

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