Single door anti-pinch anti-dragging adhesive strip assembly and inclined single door sliding door and vehicle

Abstract

The utility model relates to a sealing device field for vehicle door especially single leaf door anti -jamming anti -dragging rubber strip subassembly and oblique open single leaf sash door and vehicle. In the rubber strip subassembly of the utility model, the profile of two rubber strip sealing cooperation sides is high and low undulating cooperation profile, at least one of the two protruding parts of the sealing cooperation side of the door body rubber strip is internally formed with sensitive element installation cavity for installing sensitive element, when the hand or other human body parts are clamped between the door body and the door frame during the closing process of the vehicle door, the sensitive element can be directly triggered, thereby realizing the anti -jamming function. Through the high and low undulating cooperation profile, the high and low undulating cooperation profiles of the two rubber strips are inlaid and occluded in the door closing state, then when the shoulder strap or the chain is clamped between the two rubber strips, the shoulder strap or the chain is continuously bent back and forth in the inside and outside directions, when the vehicle starts and the straight rope belt is dragged, the sensitive element is triggered through the pressure of the rope belt to the sensitive element installation cavity, thereby realizing the anti -dragging requirement.

Description

Technical Field

[0001] This utility model relates to the field of sealing devices for vehicle doors, and more particularly to a single-leaf door anti-pinch and anti-drag rubber strip assembly and a slanted single-leaf sliding door and vehicle. Background Technology

[0002] Sliding doors are commonly used in rail trains and public transportation vehicles. In public transportation, such as buses, sliding doors offer higher reliability and safety compared to inward-swinging doors, making their application a trend in some high-end buses. For buses, passenger boarding and alighting efficiency is a crucial concern. Since the rear of the vehicle often has ample space, existing double-leaf sliding doors can be used as rear doors to meet this requirement. However, the front of the vehicle, specifically the area before the front wheels, typically has limited space, making double-leaf sliding doors unsuitable. Therefore, when using sliding doors, only single-leaf sliding doors are feasible.

[0003] Single-leaf sliding doors are often equipped with a rubber strip assembly, which mainly serves to seal, insulate, waterproof, dustproof, and prevent pinching. The rubber strip assembly includes strips installed on the door frame and strips installed on the door body. When the sliding door closes, the rubber strips on the door body and frame deform against each other to achieve a seal. With increasing safety requirements, elongated sensitive elements are installed in the rubber strips at the door seam to form an anti-pinch strip. When the door closes and catches an obstacle, the deformation of the rubber strip transmits the external force to the sensitive element. Upon receiving a certain amount of external force, the sensitive element triggers a signal to the controller, which then converts the signal into a door opening action to prevent accidents that could cause injury.

[0004] Existing technologies, such as the anti-pinch strip disclosed in Chinese Utility Model Patent No. CN219281620U, are designed for double-leaf doors. One side of the strip body is a connecting side for connection with the door frame, and the other side is a sealing side for sealing with the opposite anti-pinch strip. A sensitive element mounting cavity is provided in the middle of the strip body. Two opposing inclined support ribs are connected to the side of the sensitive element mounting cavity facing the sealing side. The ends of the two support ribs are connected to the strip body through edge sidewalls extending towards the connecting side. The ends of the support ribs also have two opposing inclined sealing flashes. When the double-leaf door is closed, the sealing flashes of the two opposing anti-pinch strips press against each other and achieve a sealing fit. However, for angled single-leaf sliding doors, since the door's opening and closing movement is angled, it is difficult to ensure that the aforementioned anti-pinch strips are aligned correctly, and a reliable seal cannot be guaranteed during use.

[0005] Furthermore, with increasingly stringent safety requirements, some countries and regions have imposed stricter requirements on vehicle doors. For example, the "New Bus Specification" issued by London Bus Services Ltd. in April 2024 stipulates that if a door's movement is obstructed within 11mm of its fully open or fully closed position (e.g., trapping a person), the door must stop and automatically reopen completely. Moreover, to minimize the risk of the bus dragging people or objects trapped by the door, an anti-drag system should be installed if no statically detected 11mm wide object is detected. This requires that if a passenger's backpack or pet's leash is trapped in the door, the vehicle should not be able to move, thus preventing the dragging of people or pets outside the vehicle and causing injury. However, if the aforementioned sealing strip traps a backpack or leash while the door is closed, even if the backpack or leash is pulled from the outside, it is unlikely to trigger the sensitive components, failing to meet the anti-drag safety requirements. Utility Model Content

[0006] The purpose of this invention is to provide a single-leaf door anti-pinch and anti-drag rubber strip assembly to solve the problem that existing anti-pinch rubber strip assemblies cannot meet the anti-pinch and anti-drag requirements of single-leaf doors. This invention also provides a slanted single-leaf sliding door and a vehicle using the above-mentioned rubber strip assembly to solve the same problem.

[0007] The single-leaf door anti-pinch and anti-drag rubber strip assembly of this utility model includes a door body rubber strip and a door frame rubber strip. Both the door body rubber strip and the door frame rubber strip have a fixed connection side and a sealing mating side. The profiles of the sealing mating sides of the two rubber strips are undulating mating surfaces in the inward and outward extension directions. The sealing mating side of the door body rubber strip has two protrusions, and a sensitive element mounting cavity with the trigger top facing the door frame rubber strip is formed in at least one protrusion. When the door is closed, the undulating mating surfaces of the two rubber strips fit together and interlock, so that the rope sandwiched between the two rubber strips can bend back and forth continuously in the inward and outward directions. When the vehicle starts and drags, straightening the rope, the rope applies pressure to the sensitive element mounting cavity, causing the sensitive element to be triggered.

[0008] Furthermore, the sealing mating side of the door body rubber strip is provided with a sealing burr in the recess between the two protruding parts. The sealing burr is used to overlap and seal with the protruding part of the mating surface of the door frame rubber strip when it enters.

[0009] Furthermore, when the door is closed, the raised portion of the mating surface of the door frame rubber strip presses the sealing flash against the mating surface of the sealing mating side of the door body rubber strip to ensure a reliable seal between the sealing flash and the door frame rubber strip.

[0010] Furthermore, the sealing flash is formed at the outer sensitive element mounting cavity and tilts inward and extends forward.

[0011] Furthermore, when the door is closed, there is an anti-accidental contact gap between the trigger top of the sensitive element mounting cavity and the mating surface of the door frame rubber strip.

[0012] Furthermore, the raised portion corresponding to the sealing flash is a ridge-shaped protrusion.

[0013] Furthermore, the ridge protrusion has a deformable inner cavity to ensure its deformability.

[0014] Furthermore, the door frame rubber strip has a rubber strip mounting cavity inside the rubber strip body for installing the connecting strip. The mounting cavity is an open cavity, and the opening is located on the side of the door frame rubber strip facing the door body rubber strip near the inside, so that the door frame rubber strip can partially or completely cover the mounting strip.

[0015] Furthermore, the two raised portions on the door seal are such that the outer raised portion is higher than the inner raised portion, and the outer raised portion has a cavity for mounting the sensitive element formed therein.

[0016] Furthermore, the sensitive element mounting cavity is formed in both protruding parts of the door seal strip.

[0017] This invention improves upon existing rubber strip assemblies to better suit single-leaf sliding doors that open at an angle and meet anti-pinch and anti-drag requirements. In this rubber strip assembly, the sealing surfaces of both rubber strips are undulating mating surfaces. At least one of the two protrusions on the sealing surface of the door rubber strip has a cavity for mounting a sensitive element. When the door is closed, if a hand or other body part is caught between the door and the door frame, the sensitive element can be directly triggered, thus achieving the anti-pinch function. Furthermore, due to the undulating mating surfaces, the two rubber strips mesh and engage when the door is closed. When a strap or chain is caught between the two rubber strips, the strap or chain bends continuously in the inward and outward directions. When the vehicle starts and drags, straightening the strap, pressure is applied to the cavity for the sensitive element, triggering the sensitive element and thus achieving the anti-drag requirement.

[0018] This utility model discloses a single-leaf sliding door with a slanted opening mechanism, comprising a door body, a door frame, and a rubber strip assembly. The rubber strip assembly includes a door body rubber strip installed on the door body and a door frame rubber strip installed on the door frame. Both the door body rubber strip and the door frame rubber strip have a fixed connection side and a sealing mating side. The profiles of the sealing mating sides of the two rubber strips are undulating mating profiles in the inward and outward extension directions. The sealing mating side of the door body rubber strip has two protrusions, and a sensitive element mounting cavity with the trigger top facing the door frame rubber strip is formed in at least one protrusion. When the door is closed, the undulating mating profiles of the two rubber strips fit together and interlock, allowing the rope sandwiched between the two rubber strips to bend continuously back and forth in the inward and outward directions. When the vehicle starts and drags, straightening the rope, pressure is applied to the sensitive element mounting cavity through the rope, causing the sensitive element to be triggered.

[0019] Furthermore, the sealing mating side of the door body rubber strip is provided with a sealing burr in the recess between the two protruding parts. The sealing burr is used to overlap and seal with the protruding part of the mating surface of the door frame rubber strip when it enters.

[0020] Furthermore, when the door is closed, the raised portion of the mating surface of the door frame rubber strip presses the sealing flash against the mating surface of the sealing mating side of the door body rubber strip to ensure a reliable seal between the sealing flash and the door frame rubber strip.

[0021] Furthermore, the sealing flash is formed at the outer sensitive element mounting cavity and tilts inward and extends forward.

[0022] Furthermore, when the door is closed, there is an anti-accidental contact gap between the trigger top of the sensitive element mounting cavity and the mating surface of the door frame rubber strip.

[0023] Furthermore, the raised portion corresponding to the sealing flash is a ridge-shaped protrusion.

[0024] Furthermore, the ridge protrusion has a deformable inner cavity to ensure its deformability.

[0025] Furthermore, the door frame rubber strip has a rubber strip mounting cavity inside the rubber strip body for installing the connecting strip. The mounting cavity is an open cavity, and the opening is located on the side of the door frame rubber strip facing the door body rubber strip near the inside, so that the door frame rubber strip can partially or completely cover the mounting strip.

[0026] Furthermore, the two raised portions on the door seal are such that the outer raised portion is higher than the inner raised portion, and the outer raised portion has a cavity for mounting the sensitive element formed therein.

[0027] Furthermore, the sensitive element mounting cavity is formed in both protruding parts of the door seal strip.

[0028] This invention improves upon existing slanted single-leaf sliding doors, particularly optimizing the structure of the rubber strip assembly to better suit slanted single-leaf sliding doors and meet anti-pinch and anti-drag requirements. In this invention's rubber strip assembly, the sealing surfaces of both rubber strips are undulating mating surfaces. At least one of the two protrusions on the sealing surface of the door body rubber strip has a sensing element mounting cavity for installing a sensing element. When the door is closed, if a hand or other body part is trapped between the door body and the door frame, the sensing element can be directly triggered, thus achieving the anti-pinch function. Furthermore, due to the undulating mating surfaces, the two rubber strips mesh and interlock when the door is closed. When a strap or chain is trapped between the two rubber strips, the strap or chain bends continuously in the inward and outward directions. When the vehicle starts and drags, straightening the strap, pressure is applied to the sensing element mounting cavity through the strap, triggering the sensing element and thus achieving the anti-drag requirement.

[0029] The vehicle of this utility model includes a vehicle body and a single-leaf sliding door with an angled opening mounted on the vehicle body. The single-leaf sliding door with an angled opening includes a door body, a door frame, and a rubber strip assembly. The rubber strip assembly includes a door body rubber strip mounted on the door body and a door frame rubber strip mounted on the door frame. Both the door body rubber strip and the door frame rubber strip have a fixed connection side and a sealing mating side. The profiles of the sealing mating sides of the two rubber strips are undulating mating surfaces in the inward and outward extension directions. The sealing mating side of the door body rubber strip has two protrusions, and a sensitive element mounting cavity with the trigger top facing the door frame rubber strip is formed in at least one of the protrusions. When the door is closed, the undulating mating surfaces of the two rubber strips fit together and interlock, so that the rope sandwiched between the two rubber strips can bend back and forth continuously in the inward and outward directions. When the vehicle starts and the rope is straightened due to dragging, the rope applies pressure to the sensitive element mounting cavity, causing the sensitive element to be triggered.

[0030] Furthermore, the sealing mating side of the door body rubber strip is provided with a sealing burr in the recess between the two protruding parts. The sealing burr is used to overlap and seal with the protruding part of the mating surface of the door frame rubber strip when it enters.

[0031] Furthermore, when the door is closed, the raised portion of the mating surface of the door frame rubber strip presses the sealing flash against the mating surface of the sealing mating side of the door body rubber strip to ensure a reliable seal between the sealing flash and the door frame rubber strip.

[0032] Furthermore, the sealing flash is formed at the outer sensitive element mounting cavity and tilts inward and extends forward.

[0033] Furthermore, when the door is closed, there is an anti-accidental contact gap between the trigger top of the sensitive element mounting cavity and the mating surface of the door frame rubber strip.

[0034] Furthermore, the raised portion corresponding to the sealing flash is a ridge-shaped protrusion.

[0035] Furthermore, the ridge protrusion has a deformable inner cavity to ensure its deformability.

[0036] Furthermore, the door frame rubber strip has a rubber strip mounting cavity inside the rubber strip body for installing the connecting strip. The mounting cavity is an open cavity, and the opening is located on the side of the door frame rubber strip facing the door body rubber strip near the inside, so that the door frame rubber strip can partially or completely cover the mounting strip.

[0037] Furthermore, the two raised portions on the door seal are such that the outer raised portion is higher than the inner raised portion, and the outer raised portion has a cavity for mounting the sensitive element formed therein.

[0038] Furthermore, the sensitive element mounting cavity is formed in both protruding parts of the door seal strip.

[0039] This invention improves upon existing vehicles by optimizing the rubber strip assembly of a single-leaf sliding door with a slanted opening. In the rubber strip assembly, the sealing surfaces of both rubber strips are undulating mating surfaces. At least one of the two protrusions on the sealing surface of the door rubber strip has a cavity for mounting a sensitive element. When the door is closed, if a hand or other body part is trapped between the door and the door frame, the sensitive element can be directly triggered, thus achieving the anti-pinch function. Furthermore, due to the undulating mating surfaces, the two rubber strips mesh and interlock when the door is closed. When a strap or chain is trapped between the two rubber strips, the strap or chain bends continuously in the inward and outward directions. When the vehicle starts and drags, straightening the strap, pressure is applied to the sensitive element mounting cavity through the strap, triggering the sensitive element and thus achieving the anti-drag requirement. Attached Figure Description

[0040] Figure 1 This is a schematic diagram illustrating the implementation of the anti-pinch and anti-drag rubber strip assembly for a single door in the closed state.

[0041] In the diagram: 1. Door body rubber strip; 11. Snap-fit ​​structure; 12. Reinforcing rib; 13. Sealing recess; 14. Sensitive element mounting cavity; 16. Sealing burr; 17. Sensitive element; 18. Main body inner cavity; 2. Door frame rubber strip; 20. Avoidance recess; 21. Sealing protrusion; 22. Connecting pressure strip; 3. Sealing overlap burr. Detailed Implementation

[0042] This invention primarily addresses the problem that existing single-leaf door (including single-leaf angled sliding doors, horizontal sliding doors, and inward-swinging doors used in commercial buses and rail vehicles) rubber strip assemblies cannot achieve anti-drag protection. It provides an anti-pinch and anti-drag rubber strip assembly for single-leaf doors, as well as angled single-leaf sliding doors using this assembly and vehicles employing these angled single-leaf sliding doors. By modifying the mating profile of the sealing surfaces of the door body rubber strip and the door frame rubber strip in the rubber strip assembly, the back strap clamped between the two rubber strips continuously bends back and forth in the inward and outward directions when the door is closed. When the vehicle starts and drags, straightening the strap, pressure is applied through the strap to the sensitive element mounting cavity, triggering the sensitive element and thus achieving the anti-drag requirement.

[0043] The present invention will be illustrated below by describing various embodiments of a vehicle with a single sliding door that opens at an angle.

[0044] In one embodiment of a vehicle, the vehicle includes a body, and a single-leaf slanted sliding door is disposed at the front position of the side panel of the body. The single-leaf slanted sliding door includes a door body and a door frame fixedly connected to the side panel of the body and cooperating with the door body. The door frame can be part of the side panel or independent of the side panel and fixed to the side panel. In this document, the door frame specifically refers to the frame edge opposite the side of the door body that opens the doorway during the opening of the door body. The rubber strip assembly configured for the single-leaf slanted sliding door includes a door frame rubber strip 2 installed on the door frame and a door body rubber strip 1 installed on the side of the door body that opens the doorway during the opening of the door body. The single-leaf slanted sliding door is configured with a drive mechanism. When the door body is opened, the rear side of the door body first swings outward and is outside the side panel, and then the entire door body moves diagonally backward to a fully open state. When the door body is closed, the entire door body moves diagonally forward until the door body rubber strip 1 and the door frame rubber strip 2 press against each other, and then the rear end of the door body swings inward to a state flush with the side panel, thus completing the closing of the door. The installation, driving, and opening / closing methods of the angled single-leaf sliding door are all existing technologies and will not be elaborated upon in this article.

[0045] like Figure 1 As shown, both the door frame rubber strip 2 and the door body rubber strip 1 of the rubber strip assembly are long strips molded from rubber through injection molding, and their cross-sectional shapes are identical at any position along their length. Both the door frame rubber strip 2 and the door body rubber strip 1 include a strip body, with the front side of the door frame rubber strip 2 (i.e.,...) Figure 1 The left side (of the middle section) is used for connection with the door frame, serving as the fixed connection side, and is located on the rear side of the door frame adhesive strip 2 (i.e., Figure 1 The right side of the door frame rubber strip 1 is used to mate with the door body rubber strip 1, serving as the sealing mating side. Conversely, the rear side of the door body rubber strip 1 is used to connect with the door frame, serving as the fixing connection side, while the front side of the door body rubber strip 1 is used to mate with the door frame rubber strip 2, serving as the sealing mating side. The fixing connection sides of the door frame rubber strip 2 are on both the inner and outer sides (i.e.,...). Figure 1The upper and lower sides of the door frame are respectively provided with forward sealing overlap 3 for overlapping and sealing with the inner and outer sides of the door frame. The fixed connection side of the door body rubber strip 1 is provided with sealing overlap 3 on the outer side for overlapping and sealing with the outer side of the door body.

[0046] Structurally, the main body of the door frame sealing strip 2 is straight, with its rear side being a mating surface. The rear side of the sealing strip body undulates in both the inward and outward directions. Figure 1 As can be seen, from the outside in, there are successively a recessed portion and a raised portion. The recessed portion is arc-shaped and is used to cooperate with the raised portion on the door rubber strip 1 described below, allowing the raised portion to enter; this is called the avoidance recess 20. The raised portion is ridge-shaped, with both sides of the ridge-shaped raised portion being inclined surfaces, forming a ridge tip at the ridge top. The inclined surface of the raised portion adjacent to the avoidance recess 20 smoothly connects with the side of the arc-shaped recessed portion. The interior of the ridge-shaped raised portion has a triangular deformed inner cavity. The base of the triangular deformed inner cavity is parallel to the main body of the rubber strip, and the other two inclined surfaces are parallel to the two inclined surfaces on the sides of the ridge-shaped raised portion, respectively. The ridge tip of the ridge-shaped raised portion is used to press and seal against the sealing burr 16 on the door rubber strip 1 described below; this is called the sealing raised portion 21.

[0047] The main body of the door seal strip 1 is a cavity structure, including a rear cavity wall extending forward and backward on the rear side, an inner cavity wall and an outer cavity wall extending forward from the rear cavity wall, and a mating side cavity wall connecting the inner cavity wall and the outer cavity wall on the front side. The front side of the mating side cavity wall is a mating surface, and the four cavity walls enclose the inner main cavity 18. A snap-fit ​​structure 11 is provided on the rear cavity wall, which snaps into the profile frame of the door body, thereby fixing the entire door seal strip 1 to the edge of the door body. As can be seen from the figure, the mating side cavity wall is irregularly shaped, but its front side, i.e., the mating surface, is undulating in the inward and outward directions. Specifically, it includes two protrusions, both of which are ridge-shaped protrusions, and each has a sensitive element mounting cavity 14 formed inside, on which a sensitive element 17 is installed. The ridge top of the ridge-shaped protrusion is set forward, which is the trigger top that can trigger the internal sensitive element 17 when it is squeezed. Of the two protruding parts, the outer protrusion corresponds to the recess 20 on the door frame rubber strip 2 and enters the recess 20 when the door is closed. The inner protrusion corresponds to the inner position of the sealing protrusion 21 on the door frame rubber strip 2. A sealing burr 16 is provided in the recess between the two protruding parts. The sealing burr 16 is used to abut against the sealing protrusion on the door frame rubber strip 2 mentioned above to achieve a seal between the two rubber strips when the door is closed. Therefore, this recess is called the sealing recess 13. The inner and outer sides of the deepest part of the sealing recess 13 are steeper and gentler, with the steeper side on the outer side and the gentler side on the inner side. The gentler side extends from back to front at an angle. The sealing burr 16 is formed on the steeper outer side and extends forward at an angle inward. The two protruding parts are of different heights, with the outer protrusion being higher, i.e., closer to the door frame, and the inner protrusion being lower, i.e. farther from the door frame. A reinforcing rib 12 is provided in the inner cavity 18 of the main body, between the two protrusions, corresponding to the sealing groove. The reinforcing rib 12 provides certain support to the cavity wall of the mating side, especially providing reliable support to the sealing groove 13, so as to prevent it from being too easily deformed and causing sealing failure.

[0048] In terms of the fit, when the door is closed, the sealing protrusion 21 of the door frame rubber strip 2 presses the sealing flash 16 tightly against the mating surface of the door body rubber strip 1, that is, against the gentler side of the sealing recess 13. This prevents the rear side of the sealing flash 16 from retracting freely, ensuring the reliability of the sealing fit between the sealing protrusion 21 and the sealing flash 16. Simultaneously, when the door is closed, there is an anti-accidental trigger gap between the trigger top of the sensitive element mounting cavity 14 and the mating surface of the door frame rubber strip 2, preventing the sensitive element 17 from being accidentally triggered by slight vibrations of the door in the front-to-back direction during vehicle operation.

[0049] The structural design and fit of the above-mentioned parts can demonstrate good technical effect in the fit between the door frame rubber strip 2 and the door body rubber strip 1 when the door is closed.

[0050] Most importantly, the door frame rubber strip 2 and the door body rubber strip 1 are respectively formed with varying heights and undulations to match each other. When the door is closed, the varying heights and undulations of the two rubber strips match and interlock. If a rope is sandwiched between the two rubber strips, the rope between the two rubber strips will bend back and forth continuously in the inward and outward directions. If the vehicle starts and is dragged, the rope between the two rubber strips will be straightened. The rope will apply pressure to the sensitive element mounting cavity 14, which will trigger the sensitive element 17, thereby reminding the driver of the dragging situation, or directly controlling the vehicle controller to stop and open the door, thus realizing the anti-drag function.

[0051] The recess 20 on the door frame rubber strip 2 is arc-shaped. Compared to the V-shaped recess that matches the ridge protrusion on the door body rubber strip 1, it leaves a certain gap between the recess and the two sides of the ridge protrusion after the recess enters. This prevents the sensitive element 17 inside the ridge protrusion on the door body rubber strip 1 from being accidentally triggered due to vibration during vehicle operation, thus avoiding the danger of the door opening accidentally during driving. Of course, in other embodiments, the recess 20 can be V-shaped. In this case, the gap between the recess 20 and the two sides of the ridge protrusion can be increased by increasing the width of the recess; or the trigger threshold of the sensitive element 17 can be lowered to avoid accidental activation.

[0052] The sealing protrusion 21 on the door frame rubber strip 2 adopts a ridge-shaped protrusion with a sharper tip compared to the arc-shaped protrusion. This allows the ridge tip to press against the sealing flash 16 when the door is closed. Under the same pressure, due to the smaller area of ​​the ridge tip, the compression deformation of the sealing flash 16 is more obvious, resulting in a better sealing effect between the two. At the same time, the mutual compression sealing fit between the sealing protrusion 21 and the sealing flash 16 is the main sealing fit part when the door is closed, and it is also the part that mainly bears the extrusion force. The sealing protrusion 21 adopts a ridge-shaped protrusion. Since the ridge tip is originally narrow, even if the compression between the sealing protrusion 21 and the sealing flash 16 intensifies at a certain moment due to vehicle vibration, causing the sealing protrusion 21 to deform more, it is less likely that the sealing protrusion 21 will compress with the sensitive elements 17 on the inner and outer sides, causing the sensitive elements 17 to be falsely triggered. In addition, the triangular deformable inner cavity is also designed to provide stable support for the ridge tip, so that when the compression intensifies at a certain moment, the sealing protrusion 21 can retract forward and backward without deforming excessively to the inner and outer sides. Although the above describes the effect of using a ridge-shaped ridge for the sealing ridge 21, this utility model does not exclude embodiments in which the sealing ridge 21 is used as an arc-shaped ridge.

[0053] The sealing burr 16 extending from the inside out is also a feasible embodiment, but the sealing burr 16 extending forward at an angle from the outside in demonstrates a better sealing effect. Because the airflow outside the vehicle is faster during driving, a slight negative pressure is formed outside the door compared to inside the door. The air inside the vehicle tends to flow outward through the door gap. Thus, the air pressure in the space between the sealing burr 16 and the sealing recess 13 on its rear side (which communicates with the interior of the vehicle) is slightly greater than the air pressure in the space between the sealing burr 16 and the front door frame rubber strip 2 (which communicates with the outside of the vehicle). The way the sealing burr 16 is set utilizes this pressure difference, which can promote a reliable seal between the sealing burr 16 and the sealing protrusion 21.

[0054] In the above embodiments, of the two protrusions on the door seal strip 1, the outer one is higher than the inner one. This arrangement serves two purposes: firstly, it minimizes the risk of damage to the sealing burr 16 and provides a larger contact path on the outer side of the sealing burr 16 when the door is closed, thus improving the sealing effect; secondly, considering the movement during door closing, placing the higher protrusion on the outer side reduces the likelihood of the sensitive element 17 being falsely triggered during the closing process. Of course, this invention does not exclude embodiments where the higher protrusion is placed on the inner side.

[0055] In the above embodiments, both the inner and outer protrusions of the door rubber strip 1 are formed with sensitive element mounting cavities 14. This ensures reliable performance in both anti-pinch and anti-drag functions. Especially in the anti-drag function, since the vehicle may move forward or backward after the door is closed, the direction of dragging on the outside is uncertain. The presence of two sensitive elements 17 ensures reliable triggering of the sensitive elements 17 in both forward and backward dragging scenarios. Of course, in some embodiments, the inner sensitive element 17 can be omitted. That is, the inner protrusion of the door rubber strip 1 is a solid structure, or although it is a hollow structure, the hollow cavity is an elastic deformation cavity or a weight-reducing cavity, and does not constitute a sensitive element mounting cavity 14.

[0056] In one embodiment, the door frame rubber strip 2 can be fixedly connected to the door frame using the same fixing method as the door body rubber strip 1, that is, the profile used for the door frame is the same as the profile structure used for the door body frame. In the embodiment shown in the figure, the width (dimension in the inward and outward directions) of the door frame frame is larger, and it is made of square steel or channel steel with a generally planar surface structure. Therefore, the door frame rubber strip 2 is installed on the door frame frame using a connecting pressure strip 22 and a screw assembly. Specifically, the connecting pressure strip 22 has screw holes for countersunk screws to pass through. When installing the door frame rubber strip 2, self-tapping screws are passed through the corresponding screw holes on the connecting pressure strip 22, and after passing through the rubber sleeve body, they are screwed onto the door frame frame. In this embodiment, to avoid exposing the connecting strip 22, especially the self-tapping screws, the rubber strip body has a strip mounting cavity for installing the connecting strip 22. The mounting cavity extends inward and outward on the cross-section of the rubber strip. The mounting cavity is an open cavity, and its opening is located near the inner side of the side of the door frame rubber strip 2 facing the door body rubber strip 1, at one of the innermost ends of the entire mounting cavity. This allows the portion extending to the opening of the mounting cavity to be flipped up during installation of the connecting strip 22, increasing the opening to accommodate the connecting strip 22. Then, a self-tapping screw is driven into the middle of the width of the connecting strip 22. After connection, the flipped-up portion naturally recovers, covering most of the connecting strip 22 and concealing the self-tapping screw. This delays corrosion and rust and improves aesthetics. In another conceivable variant embodiment, the opening of the open cavity is a slit, meaning that after the connecting strip 22 is connected, the flipped-up portion naturally recovers, completely covering the connecting strip 22. Of course, in other embodiments, the two adhesive strips can be fixedly connected by adhesive bonding, and are not limited to the embodiments described above.

[0057] The specific structure of the obliquely opening single-leaf plug door of this utility model is the same as that of the obliquely opening single-leaf plug door in the above-described vehicle embodiment, and will not be described again in this article.

[0058] The specific structure of the single-leaf door anti-pinch and anti-drag rubber strip assembly of this utility model is the same as that of the rubber strip assembly in the vehicle embodiment described above, and will not be repeated here.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A single-leaf door anti-pinch and anti-drag sealing strip assembly, comprising a door body sealing strip and a door frame sealing strip, both the door body sealing strip and the door frame sealing strip having a fixed connection side and a sealing mating side, characterized in that, Both rubber strips have undulating mating surfaces on their sealing sides, extending in both the inner and outer directions. The sealing mating side of the door rubber strip has two protrusions, and at least one of the protrusions has a sensitive element mounting cavity formed in which the trigger top faces the door frame rubber strip. When the door is closed, the undulating mating surfaces of the two rubber strips fit together, allowing the rope sandwiched between the two rubber strips to bend back and forth continuously in the inner and outer directions. When the vehicle starts and is dragged, straightening the rope, pressure is applied to the sensitive element mounting cavity through the rope, causing the sensitive element to be triggered.

2. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 1, characterized in that, The sealing mating side of the door frame rubber strip has a sealing burr in the recess between the two protrusions. The sealing burr is used to overlap and seal with the protrusion of the mating surface of the door frame rubber strip when it enters.

3. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 2, characterized in that, When the door is closed, the raised part of the mating surface of the door frame rubber strip presses the sealing flash against the mating surface of the sealing mating side of the door body rubber strip to ensure a reliable seal between the sealing flash and the door frame rubber strip.

4. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 2, characterized in that, The sealing flash is formed at the outer sensitive element mounting cavity and tilts inward and extends forward.

5. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 3, characterized in that, When the door is closed, there is a gap between the trigger top of the sensitive element mounting cavity and the mating surface of the door frame rubber strip to prevent accidental activation.

6. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 3, characterized in that, The raised portion corresponding to the sealing flash is a ridge-shaped protrusion.

7. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 6, characterized in that, The ridge protrusion has a deformable inner cavity to ensure its deformability.

8. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to any one of claims 1-7, characterized in that, The door frame rubber strip has a rubber strip mounting cavity inside the rubber strip body for installing the connecting strip. The mounting cavity is an open cavity, and the opening is located on the side of the door frame rubber strip facing the door body rubber strip near the inside, so that the door frame rubber strip can partially or completely cover the mounting strip.

9. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to any one of claims 1-7, characterized in that, The door panel has two raised sections, with the outer raised section being higher than the inner raised section, and the outer raised section having a cavity for mounting the sensitive element.

10. The single-leaf door anti-pinch and anti-drag rubber strip assembly according to claim 9, characterized in that, The door panel has two raised sections containing the mounting cavity for the sensitive element.

11. A single-leaf sliding door that opens at an angle, comprising a door body, a door frame, and a sealing strip assembly, characterized in that, The adhesive strip assembly is the single-leaf door anti-pinch and anti-drag adhesive strip assembly as described in any one of claims 1-10.

12. A vehicle, comprising a vehicle body and a single-leaf sliding door with an angled opening mounted on the vehicle body, the single-leaf sliding door with an angled opening comprising a door body, a door frame, and a sealing strip assembly, characterized in that, The adhesive strip assembly is the single-leaf door anti-pinch and anti-drag adhesive strip assembly as described in any one of claims 1-10.

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