A magnetic limiter structure for a large-opening tailgate
By using a magnetic limiter structure, which combines the attraction of a magnet and an iron block with rubber buffer, the problem of unstable positioning of the tailgate of a van is solved, achieving stable positioning, noise reduction, and extended lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGLING MOTORS
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-30
AI Technical Summary
The 270-degree wide-opening tailgate of existing van logistics vehicles cannot effectively restrict its position when it fits against the side panel, resulting in unstable door positioning and affecting performance and lifespan.
It adopts a magnetic limiter structure, which limits the movement by the attraction between the magnet and the iron block. Combined with the buffer design of the side rubber and the door rubber, it forms a series buffer chain to absorb the inertial impact force of the door step by step, avoid metal collision noise and extend the life of the components.
It achieves stable limiting of large-opening tailgates on different vehicle models, reduces metal fatigue damage, eliminates noise, adapts to harsh environments, extends the life of magnetic components, and meets the quality requirements of different vehicle models.
Smart Images
Figure CN224432278U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a magnetic limiter structure for a large-opening tailgate. Background Technology
[0002] A van is a freight vehicle with an independent, enclosed cargo compartment, primarily used for urban delivery and cold chain transportation. Depending on its purpose and structure, vans can be categorized into several types.
[0003] As a core component for loading and unloading goods, the material selection of the tailgate of a van directly determines its performance and lifespan. Most modern vans are equipped with a 270-degree wide-opening tailgate to facilitate reversing or unloading while minimizing lateral space occupation. However, when the tailgate is opened to 270 degrees and almost flush with the side panel, the door often fails to restrict movement. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a magnetic limiter structure for a large-opening tailgate, which solves the problem that most common van logistics vehicles are equipped with 270-degree large-opening tailgates to facilitate customers when reversing or unloading and reduce lateral space occupation. However, when the tailgate is opened to 270 degrees and basically fits against the side wall, the door often cannot restrict the position.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic limiter structure for a large-opening tailgate, comprising:
[0006] The side panel end includes a magnet, a side panel rubber, and a fixing seat reinforcement plate. The magnet and the fixing seat reinforcement plate are disposed on both sides of the side panel rubber, and the fixing seat reinforcement plate is installed on the side panel of the vehicle.
[0007] The door end includes a first door rubber, an iron block, and a second door rubber. The iron block and the second door rubber are disposed at both ends of the first door rubber, and a fixing seat reinforcing screw is installed at the other end of the second door rubber. The fixing seat reinforcing screw is installed on the car door.
[0008] When the car door is opened, it moves the door end toward the side panel until the iron block comes into contact with the magnet. The magnet's attraction limits the movement, while the side panel rubber, the first rubber of the door, and the second rubber of the door provide cushioning.
[0009] Preferably, the magnet, side rubber, and fixing seat reinforcement plate are assembled by fixing the side rubber into one piece during vulcanization.
[0010] Preferably, the first rubber of the car door and the iron block are fixed together as one piece during the vulcanization of the first rubber of the car door.
[0011] Preferably, a protective cover is fitted over the outside of the iron block.
[0012] Preferably, the second rubber of the car door is composed of a rubber sleeve and a threaded block, and the threaded block is connected to the internal thread of the first rubber of the car door.
[0013] Preferably, the fixing seat reinforcing screw includes an insert block and a fixing screw, wherein the insert block is embedded inside the rubber sleeve.
[0014] Preferably, when the embedded block is combined with the rubber sleeve, the rubber sleeve is fixed into one piece during vulcanization.
[0015] This utility model discloses a magnetic limiter structure for a large-opening tailgate, which has the following beneficial effects:
[0016] 1. The magnetic limiter structure of this large-opening tailgate causes the door end to move towards the side panel when the car door is opened, until the iron block contacts the magnet. The magnet's attraction limits the movement, while the side panel rubber, the first door rubber, and the second door rubber provide cushioning. The side panel rubber, the first door rubber, and the second door rubber form a series buffer chain, absorbing the inertial impact force of the door step by step and reducing fatigue damage to the metal parts.
[0017] 2. The magnetic limiter structure of this large-opening tailgate features a side panel where the magnet and the fixing seat reinforcement plate are integrally formed by vulcanizing the side panel rubber. This prevents the magnet from directly contacting the metal, eliminating metal collision noise during the magnetic attraction process. At the same time, the rubber coating can withstand harsh environments such as high temperature and humidity, extending the life of the magnetic attraction components. The threaded block of the second rubber on the door is threadedly connected to the threaded block of the first rubber on the door, and the fixing screw of the fixing seat reinforcement screw is threadedly connected to the door, thereby allowing adjustment of the buffer stroke to adapt to the weight requirements of different vehicle models. Attached Figure Description
[0018] 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. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the working structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall design of this utility model;
[0021] Figure 3 This is an exploded view of the side end of this utility model;
[0022] Figure 4This is an exploded view of the door end of this utility model.
[0023] In the diagram: 1. Side panel end; 11. Magnet; 12. Side panel rubber; 13. Fixing seat reinforcement plate; 2. Door end; 21. First door rubber; 22. Iron block; 23. Second door rubber; 231. Rubber sleeve; 232. Threaded block; 24. Fixing seat reinforcement screw; 241. Embedded block; 242. Fixing screw; 25. Protective cover. Detailed Implementation
[0024] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0025] This utility model discloses a magnetic limiter structure for a large-opening tailgate.
[0026] According to the appendix Figure 1-4 As shown, it includes:
[0027] Side end 1, the side end 1 includes a magnet 11, a side rubber 12 and a fixing seat reinforcing plate 13, the magnet 11 and the fixing seat reinforcing plate 13 are disposed on both sides of the side rubber 12, and the fixing seat reinforcing plate 13 is installed on the side of the car.
[0028] The door end 2 includes a first door rubber 21, an iron block 22 and a second door rubber 23. The iron block 22 and the second door rubber 23 are disposed at both ends of the first door rubber 21, and a fixing seat reinforcing screw 24 is installed at the other end of the second door rubber 23. The fixing seat reinforcing screw 24 is installed on the car door.
[0029] When the car door is opened, the door end 2 moves towards the side end 1 until the iron block 22 contacts the magnet 11. The magnet 11 then limits the movement, while the side rubber 12, the first door rubber 21, and the second door rubber 23 provide cushioning.
[0030] Furthermore, when the magnet 11, the side rubber 12, and the fixing seat reinforcement plate 13 are combined, they are fixed together as one piece by the vulcanization of the side rubber 12.
[0031] In the side end 1, the magnet 11 and the fixing seat reinforcement plate 13 are integrally formed by vulcanization of the side rubber 12, which avoids the magnet 11 from directly contacting the metal, eliminates metal collision noise during the magnetic attraction process, and at the same time, the rubber coating can resist harsh environments such as high temperature and humidity, and extend the life of the magnetic attraction component.
[0032] Furthermore, when the first rubber 21 of the car door and the iron block 22 are combined, they are fixed together as one piece by the vulcanization of the first rubber 21 of the car door.
[0033] Furthermore, a protective cover 25 is fitted over the outer side of the iron block 22.
[0034] Furthermore, the second rubber 23 of the car door consists of a rubber sleeve 231 and a threaded block 232, and the threaded block 232 is connected to the internal thread of the first rubber 21 of the car door.
[0035] Furthermore, the fixing seat reinforcing screw 24 includes an insert block 241 and a fixing screw 242, with the insert block 241 embedded inside the rubber sleeve 231.
[0036] The threaded block 232 of the second rubber 23 of the door is threadedly connected to the first rubber 21 of the door, and the fixing screw 242 of the fixing seat reinforcing screw 24 is threadedly connected to the door, thereby allowing adjustment of the buffer stroke to adapt to the quality requirements of different vehicle models.
[0037] Furthermore, when the embedded block 241 is combined with the rubber sleeve 231, the rubber sleeve 231 is fixed into one piece during vulcanization.
[0038] The side panel end 1 is directly installed on the side panel of the car through the fixing seat reinforcement plate 13, and the door end 2 is locked to the door through the fixing screw 242 of the fixing seat reinforcement screw 24, which simplifies the assembly process.
[0039] When the car door is opened, the door end 2 moves towards the side end 1 until the iron block 22 contacts the magnet 11. The magnet 11 attracts the door and limits its movement. At the same time, the side rubber 12, the first door rubber 21, and the second door rubber 23 provide cushioning. The side rubber 12, the first door rubber 21, and the second door rubber 23 form a series of buffer chains, which absorb the inertial impact force of the door step by step, reducing fatigue damage to the metal parts. The magnetic attraction and the buffer rubber work together to ensure that the door is stably limited within a large opening range.
[0040] When the user pushes the car door, the door end 2 rotates with the door hinge, causing the first rubber 21, iron block 22 and the second rubber 23 of the door to move as a whole toward the side end 1.
[0041] When the car door is opened to the preset maximum opening, the iron block 22 enters the magnetic field range of the magnet 11, and the magnetic attraction overcomes the gravity of the car door to achieve precise positioning; the side rubber 12 and the first rubber 21 of the car door are deformed under pressure, initially absorbing the inertial impact force of the car door.
[0042] If the door continues to move due to inertia, the rubber sleeve 231 of the second rubber 23 of the door is further compressed, and the buffering force is transmitted through the threaded block 232 and the threaded connection with the first rubber 21 of the door to form a secondary buffer.
[0043] Finally, the embedded block 241 of the fixing seat reinforcing screw 24 slides slightly within the rubber sleeve 231, achieving three-stage buffering through rubber deformation and completely eliminating impact energy.
[0044] When the car door is closed, the magnetic attraction automatically disengages, all rubber components reset, and the protective cover 25 prevents the iron block 22 from directly colliding with the magnet 11, ensuring quiet operation during long-term use.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A magnetic attraction limiter structure of a large-opening tailgate, characterized by, include: Side panel end (1), the side panel end (1) includes a magnet (11), a side panel rubber (12) and a fixing seat reinforcement plate (13), the magnet (11) and the fixing seat reinforcement plate (13) are disposed on both sides of the side panel rubber (12), and the fixing seat reinforcement plate (13) is installed on the side panel of the car. The door end (2) includes a first door rubber (21), an iron block (22) and a second door rubber (23). The iron block (22) and the second door rubber (23) are disposed at both ends of the first door rubber (21), and a fixing seat reinforcing screw (24) is installed at the other end of the second door rubber (23). The fixing seat reinforcing screw (24) is installed on the car door. When the car door is opened, the door end (2) moves toward the side end (1) until the iron block (22) comes into contact with the magnet (11). The magnet (11) provides a limit, while the side rubber (12), the first door rubber (21), and the second door rubber (23) provide a buffer.
2. The magnetic attraction limiter structure of a large-opening tailgate according to claim 1, wherein When the magnet (11), the side rubber (12) and the fixing seat reinforcement plate (13) are combined, they are fixed together by the vulcanization of the side rubber (12).
3. The magnetic stopper structure of the large-opening tailgate according to claim 1, wherein, When the first rubber (21) of the car door and the iron block (22) are combined, they are fixed together by the vulcanization of the first rubber (21).
4. The magnetic stopper structure of a large-opening tailgate according to claim 1, wherein, The iron block (22) is fitted with a protective cover (25) on its outer side.
5. The magnetic catch limiter structure of a large-opening tailgate according to claim 1, wherein The second rubber (23) of the car door consists of a rubber sleeve (231) and a threaded block (232), and the threaded block (232) is connected to the internal thread of the first rubber (21) of the car door.
6. The magnetic latching detent structure of a large opening tailgate of claim 5, wherein, The fixing seat reinforcing screw (24) includes an insert block (241) and a fixing screw (242), wherein the insert block (241) is embedded inside the rubber sleeve (231).
7. The magnetic catch limiter structure of a large-opening tailgate according to claim 6, characterized in that, When the embedded block (241) is combined with the rubber sleeve (231), it is fixed into one piece by the vulcanization of the rubber sleeve (231).