Door check and vehicle

By designing the pivot, sliding sleeve, and locking mechanism of the door limiter, the problem of automatic closure of the cargo box door of the special-purpose van under the influence of wind was solved, and the stable opening of the cargo box door was achieved in severe weather.

CN116624042BActive Publication Date: 2026-04-07HUNAN HUAXUN EMERGENCY EQUIP CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The doors of van-type special-purpose vehicles are prone to closing automatically under the influence of wind, and the current limit switches cannot effectively keep the doors open in any stormy weather.

Method used

Design a door limiter including a pivot, a sliding sleeve, a sliding rod, and a locking mechanism. The locking mechanism locks the sliding rod in the position of the sliding sleeve, thereby locking and unlocking the car door and ensuring that the car door remains open when needed.

Benefits of technology

It effectively locks the cargo box door to prevent it from closing automatically due to wind, ensuring that the cargo box door remains open in inclement weather. It is suitable for special-purpose van-type work vehicles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

This invention provides a door limiter and a vehicle, relating to the field of vehicle technology. The door limiter includes a rotating shaft, a sliding sleeve, a sliding rod, and a locking mechanism. The first end of the rotating shaft is horizontally rotatable relative to the door frame; the sliding sleeve is horizontally mounted on the vehicle door; the first end of the sliding rod is horizontally rotatably connected to the second end of the rotating shaft, and the second end of the sliding rod is slidably mounted within the sliding sleeve; the locking mechanism is used to lock the position of the sliding rod within the sliding sleeve. Based on the technical solution of this invention, because the locking mechanism can lock the position of the sliding rod within the sliding sleeve, the door limiter can lock the vehicle door to keep it in the open state.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a door limiter and a vehicle. Background Technology

[0002] The function of a door limiter is to restrict the degree to which the door can be opened. On the one hand, it can limit the maximum opening of the door to prevent it from opening too wide. On the other hand, it can keep the door open when needed, such as when the car is parked on a slope or when it is windy, so that the door will not close automatically.

[0003] Special-purpose vans, due to the presence of windows, doors, and other specialized work compartments on the sides of the cargo box, cannot have the ample space on the side walls of a freight truck to install doorstops or similar devices, unlike blind-cargo vans. Some vehicles are equipped with readily accessible doorstops for passenger boarding and alighting, but these offer poor wind protection and are easily forced to close automatically by wind when open. However, special-purpose vans need to operate in any stormy weather, requiring the cargo box doors to remain open. Therefore, a door limiter capable of locking the cargo box doors to maintain their open position is needed. Summary of the Invention

[0004] To address the problems in the prior art, this application proposes a door limiter and a vehicle that can lock the state of the vehicle door to keep the door in the open state.

[0005] One aspect of the present invention provides a door limiter, wherein a vehicle door is horizontally hinged to a door frame, the door limiter comprising:

[0006] A pivot, the first end of which is capable of horizontal rotation relative to the door frame;

[0007] A sliding sleeve, which is horizontally installed on the carriage door;

[0008] A sliding rod, wherein the first end of the sliding rod is horizontally rotatably connected to the second end of the rotating shaft, and the second end of the sliding rod is slidably mounted within the sliding sleeve; and

[0009] A locking mechanism is provided to lock the position of the slide rod within the slide sleeve.

[0010] As a further improvement to the above technical solution:

[0011] In the aforementioned door limiter, the sliding rod is further provided with a plurality of locking teeth spaced apart along its length. The locking mechanism includes a drive assembly and a locking plate. The drive assembly is mounted on the sliding sleeve and can drive the locking plate to cooperate with the locking teeth to lock the position of the sliding rod within the sliding sleeve.

[0012] The aforementioned door limiter further includes a drive assembly comprising a locking seat and a drive rod. The locking seat is mounted on the sliding sleeve and has a mounting hole. The first end of the drive rod passes through the mounting hole and is connected to the locking plate. An elastic element is sleeved on the drive rod, and the locking plate can engage with the locking teeth under the action of the elastic element to lock the position of the slide rod within the sliding sleeve.

[0013] Furthermore, in the aforementioned door limiter, the side wall of the locking seat is provided with a locking groove, and the drive assembly also includes a locking rod, which can cooperate with the locking groove to lock or release the locking plate and the locking tooth.

[0014] In the aforementioned door limiter, the locking seat has locking grooves on both opposite side walls, the locking rod has a U-shaped structure, the second end of the drive rod has a mounting groove, the middle part of the locking rod is installed in the mounting groove, the two ends of the locking rod are correspondingly limited in the two locking grooves, and the two ends of the elastic member abut against the locking rod and the locking seat respectively.

[0015] Furthermore, in the aforementioned door limiter, a pressing cap is installed at the second end of the drive rod. The pressing cap can press the drive rod to overcome the action of the elastic element, thereby causing the drive rod to move relative to the locking seat.

[0016] The aforementioned door limiter further includes a rotating seat, which can be installed on the door frame. The upper surface of the rotating seat has a first rotating hole, and the first end of the rotating shaft is rotatably installed in the first rotating hole.

[0017] Furthermore, in the aforementioned door limiter, the first end of the slide rod is provided with a second rotating hole, and the second end of the rotating shaft is rotatably installed in the second rotating hole.

[0018] Furthermore, in the aforementioned door limiter, the sliding sleeve is detachably mounted on the vehicle door via a mounting base.

[0019] Another aspect of the present invention provides a vehicle having a door limiter as described above.

[0020] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0021] The present invention provides a door limiter and a vehicle, which, compared with the prior art, has at least the following advantages: When it is necessary to adjust the horizontal rotation angle of the vehicle door relative to the door frame to adjust the state of the vehicle door, firstly, the locking mechanism unlocks the position of the sliding rod within the sliding sleeve, and then the vehicle door is driven to rotate horizontally relative to the door frame to adjust the state of the vehicle door. At this time, the first end of the rotating shaft rotates horizontally relative to the door frame, and the first end of the sliding rod rotates horizontally relative to the second end of the rotating shaft, causing the sliding rod to slide relative to the sliding sleeve. After the state of the vehicle door is adjusted, the locking mechanism locks the position of the sliding rod within the sliding sleeve, thus ensuring that the state of the vehicle door is locked to keep the vehicle door in the open or closed state. Because the locking mechanism of this door limiter can lock the position of the sliding rod within the sliding sleeve, the state of the vehicle door can be locked to keep the vehicle door in the open state.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0025] Figure 1 This shows a schematic diagram of the structure of the door limiter provided in an embodiment of the present invention;

[0026] Figure 2 Showing Figure 1 Enlarged view of region A in the middle;

[0027] Figure 3 A schematic diagram of the slide bar of the door limiter provided in an embodiment of the present invention is shown.

[0028] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0029] Figure label:

[0030] 100-Door limiter, 110-Rotating shaft, 120-Sliding sleeve, 130-Sliding rod, 131-Locking tooth, 132-Second rotating hole, 140-Locking mechanism, 141-Locking piece, 142-Locking seat, 143-Drive rod, 144-Elastic element, 145-Locking groove, 146-Locking rod, 147-Mounting groove, 148-Press cap, 150-Rotating seat, 160-Mounting seat. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] This invention provides a door limiter 100 and a vehicle, which can lock the state of the vehicle door to keep the vehicle door in the open state.

[0038] Please see Figure 1 The door limiter 100 provided in this embodiment of the invention has a vehicle door horizontally hinged to a door frame. The door limiter 100 includes a rotating shaft 110, a sliding sleeve 120, a sliding rod 130, and a locking mechanism 140. The first end of the rotating shaft 110 can rotate horizontally relative to the door frame; the sliding sleeve 120 is horizontally mounted on the vehicle door; the first end of the sliding rod 130 is horizontally rotatably connected to the second end of the rotating shaft 110, and the second end of the sliding rod 130 is slidably mounted in the sliding sleeve 120; the locking mechanism 140 is used to lock the position of the sliding rod 130 in the sliding sleeve 120.

[0039] When it is necessary to adjust the horizontal rotation angle of the carriage door relative to the door frame to adjust the state of the carriage door, firstly, the locking mechanism 140 unlocks the position of the slide rod 130 within the sliding sleeve 120, and then drives the carriage door to rotate horizontally relative to the door frame to adjust the state of the carriage door. At this time, the first end of the rotating shaft 110 rotates horizontally relative to the door frame, and the first end of the slide rod 130 rotates horizontally relative to the second end of the rotating shaft 110, and drives the slide rod 130 to slide relative to the sliding sleeve 120. After the state of the carriage door is adjusted, the locking mechanism 140 locks the position of the slide rod 130 within the sliding sleeve 120, thus ensuring that the state of the carriage door is locked to keep the carriage door in the open or closed state.

[0040] The door limiter 100 provided in this embodiment of the invention can lock the state of the car door to keep the car door in the open state because the locking mechanism 140 can lock the position of the slide bar 130 in the slide sleeve 120.

[0041] The door limiter 100 provided in this embodiment of the invention, for details please refer to... Figure 2 and Figure 3The slide bar 130 has a plurality of locking teeth 131 spaced apart along its length. The locking mechanism 140 includes a drive assembly and a locking plate 141. The drive assembly is mounted on the slide sleeve 120 and can drive the locking plate 141 to engage with the locking teeth 131 to lock the slide bar 130 within the slide sleeve 120. In this embodiment, the drive assembly includes a locking seat 142 and a drive rod 143. The locking seat 142 is mounted on the slide sleeve 120 and has a mounting hole. The first end of the drive rod 143 passes through the mounting hole and is connected to the locking plate 141. An elastic element 144 is sleeved on the drive rod 143. The locking plate 141 can engage with the locking teeth 131 under the action of the elastic element 144 to lock the slide bar 130 within the slide sleeve 120.

[0042] When it is necessary to unlock the position of the slide rod 130 within the slide sleeve 120, press the second end of the drive rod 143 to overcome the action of the elastic member 144 so that the locking piece 141 extends out of the locking tooth 131. At this time, the position of the slide rod 130 within the slide sleeve 120 can be adjusted. When it is necessary to lock the position of the slide rod 130 within the slide sleeve 120, the second end of the drive rod 143 moves in the opposite direction to the locking seat 142 under the action of the elastic member 144 so that the locking piece 141 engages with the locking tooth 131 to lock the position of the slide rod 130 within the slide sleeve 120.

[0043] The door limiter 100 provided in this embodiment of the invention is detailed in the following document. Figure 2 The locking seat 142 also has a locking groove 145 on its side wall. The driving assembly also includes a locking rod 146, which can cooperate with the locking groove 145 to lock or release the locking piece 141 and the locking tooth 131. In this embodiment, the locking seat 142 has locking grooves 145 on both opposite side walls. The locking rod 146 has a U-shaped structure. The second end of the driving rod 143 has a mounting groove 147. The middle part of the locking rod 146 is installed in the mounting groove 147. The two ends of the locking rod 146 are respectively limited in the two locking grooves 145. The two ends of the elastic member 144 abut against the locking rod 146 and the locking seat 142 respectively.

[0044] When it is necessary to unlock the position of the slide rod 130 within the slide sleeve 120, press the second end of the drive rod 143 to release it against the action of the elastic element 144, so that the two ends of the locking rod 146 are correspondingly limited to the unlocked position in the two locking grooves 145 under the action of the elastic element 144. At this time, the position of the slide rod 130 within the slide sleeve 120 can be adjusted. When it is necessary to lock the position of the slide rod 130 within the slide sleeve 120, press the second end of the drive rod 143 to release it against the action of the elastic element 144, so that the two ends of the locking rod 146 are correspondingly limited to the locked position in the two locking grooves 145 under the action of the elastic element 144. At this time, the locking piece 141 can cooperate with the locking tooth 131 to lock the position of the slide rod 130 within the slide sleeve 120.

[0045] The door limiter 100 provided in this embodiment of the invention is further described in detail below. Figure 2 A pressing cap 148 is installed at the second end of the drive rod 143. The pressing cap 148 presses the drive rod 143 to overcome the action of the elastic element 144, causing the drive rod 143 to move relative to the locking seat 142. The door limiter 100 also includes a rotating seat 150, which can be mounted on the door frame. A first rotating hole is formed on the upper surface of the rotating seat 150, and the first end of the rotating shaft 110 is rotatably mounted in the first rotating hole. Please refer to the following for details. Figure 3 The first end of the slide rod 130 has a second rotating hole 132, and the second end of the rotating shaft 110 is rotatably installed in the second rotating hole 132. The slide sleeve 120 is detachably installed on the carriage door via the mounting base 160.

[0046] This invention also proposes a vehicle having a door limiter 100 provided in any of the above embodiments. The specific structure of the door limiter 100 is the same as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A door limiter, wherein the vehicle door is horizontally hinged to the door frame, characterized in that, The door limiter includes: A pivot, the first end of which is capable of horizontal rotation relative to the door frame; A sliding sleeve, which is horizontally installed on the carriage door; A sliding rod, wherein the first end of the sliding rod is horizontally rotatably connected to the second end of the rotating shaft, and the second end of the sliding rod is slidably mounted within the sliding sleeve; and A locking mechanism is provided to lock the position of the slide rod within the slide sleeve. The slide bar is provided with a plurality of locking teeth spaced apart along its length. The locking mechanism includes a drive assembly and a locking plate. The drive assembly is mounted on the slide sleeve. The drive assembly can drive the locking plate to cooperate with the locking teeth to lock the position of the slide bar inside the slide sleeve. The drive assembly includes a locking seat and a drive rod. The locking seat is mounted on the sliding sleeve and has a mounting hole. The first end of the drive rod passes through the mounting hole and is connected to the locking plate. An elastic element is sleeved on the drive rod. The locking plate can cooperate with the locking teeth under the action of the elastic element to lock the position of the sliding rod in the sliding sleeve. The side wall of the locking seat is also provided with a locking groove, and the driving assembly also includes a locking rod, which can cooperate with the locking groove to make the locking piece cooperate with the locking tooth to lock or release; The locking seat has locking grooves on its two opposite side walls. The locking rod has a U-shaped structure. The second end of the drive rod has an installation groove. The middle part of the locking rod is installed in the installation groove. The two ends of the locking rod are respectively limited in the two locking grooves. The two ends of the elastic member abut against the locking rod and the locking seat.

2. The door limiter according to claim 1, characterized in that, A pressing cap is installed at the second end of the drive rod, which can press the drive rod to overcome the action of the elastic element and make the drive rod move relative to the locking seat.

3. The door limiter according to claim 1, characterized in that, The door limiter also includes a rotating seat, which can be installed on the door frame. The upper surface of the rotating seat has a first rotating hole, and the first end of the rotating shaft can be rotatably installed in the first rotating hole.

4. The door limiter according to claim 1, characterized in that, The first end of the slide rod is provided with a second rotating hole, and the second end of the rotating shaft is rotatably installed in the second rotating hole.

5. The door limiter according to claim 1, characterized in that, The sliding sleeve can be detachably installed on the carriage door via a mounting base.

6. A vehicle, characterized in that, The vehicle has a door limiter as described in any one of claims 1 to 5.

Citation Information

Patent Citations

  • Novel aluminum alloy window

    CN214365678U

  • Vehicle door limiter and vehicle

    CN220319348U

  • Vehicle door device

    JP2016210264A